Friday, January 31, 2020

Investigating the effectiveness of Mobile Antivirus Application on Android and Windows Mobile Phone Essay Example for Free

Investigating the effectiveness of Mobile Antivirus Application on Android and Windows Mobile Phone Essay Chapter 1: Anti-virus Applications on Mobile Devices Mobile phone anti-virus software refers to security software programs which have been professionally developed to protect device users from viruses, worms, Trojans and other malicious programs and removing them where possible. Anti-virus software programs have lately gained popularity due the increased incidences of malicious threats of attack on the web. There are several new viruses that are detected on a day to day basis on the cyberspace. While some of these viruses may be harmless, others are annoying and quite destructive. Certain viruses replicate themselves, but others may cause serious problems to the extent of erasing all data on a device drive. The use of anti-virus for device protection can be applied to multiple operating systems including Mobile Windows and Android mobile phones (iSoftwareReviews 2010). Antivirus software works in various technical ways to give protection to and remove viruses from mobile devices. This normally occur through two security scanning functions namely On-Access Scanning and On-Demand Scanning. The On-Access scanning works in real-time to ensure a mobile device is protected at all times by monitoring for viruses to any accessing in the mobile device, for example while opening a file or opening an application. Despite of the fact that this software slows down the speed of a device, its role in antivirus protection is so critical and should thus be enabled at all times. On-Demand Scanning offers antivirus protection only when activated to scan any particular area, folder, file, or drive. The program then provides a scan report about how many viruses that have been found in the scanned item. In the event that a virus is detected, the program will notify the user and recommend an action which includes either to deleting or quarantine the virus (iSoftwareRevie ws 2010). The rapidly increasing advancements of mobile phone technology to include a number of useful features have made android and windows mobile phones very popular pocket personal computers. This increased popularity has not however come with its own setbacks. Just like the ordinary personal computers, android and windows mobile phones have also been subjected to increased viruses attack. Virus attack has therefore become the latest and single biggest threat to the mobile phone industry. Subsequently, numerous companies dealing in software have come up with anti-virus for use in the android and windows mobile phones. These are mainly anti-virus software packages developed to provide anti-virus protection to mobile phones (iSoftwareReviews 2010). There are a number of anti-virus software programs for mobile phones that are available to the users. The main mobile phone anti-virus software includes AhnLab Mobile Security, Avast! PDA Edition, Avira Antivir Mobile, BitDefender Mobile Security, BullGuard Mobile Antivirus, Dr.Web Mobile Security Suite, F-Secure Mobile Security, Kaspersky Mobile Security, and Norton Smartphone Security. AhnLab Mobile Security software provides a solution for viruses and worms protection and removal. It runs under windows mobile and android mobile phones. Avast! PDA Edition is an antivirus protection for PalmOS and Windows CE, Android phones, and Pocket PC based devices (iSoftwareReviews 2010). Avira AntiVir Mobile provides professional virus and malware protection for pocket PCs, Windows mobile and Android mobile phones. BitDefender Mobile Security provides solution for virus protection and removal for PDAs and Smartphone that run on Windows mobile or Android mobile phones. BullGuard Mobile Antivirus provides solutions for protecting Pocket PCs and Windows mobile against viruses and other malicious programs. Dr.Web Mobile Security Suite is designed to provide anti-virus security solutions for pocket PCs that runs on Windows Mobile operating system. F-Secure Mobile Security is a complete mobile security software package that includes anti-virus, anti-spyware, a firewall and a remote control anti-theft feature for protection. Kaspersky Mobile Security also provides a complete protection package including Anti-theft protection, virus protection, firewall and anti-spam for SMS, EMS, and MMS. Norton Smartphone Security offers anti-virus, anti-spam, and firewall for Windows mobi le and Android mobile protection (iSoftwareReviews 2010). Protecting an android and window mobile phone from attack requires a complete understanding of all application communication. This is important because software can only protect a device if and only if it is able to read the same information as the mobile phone device, subsequently application layer threats. It may not be possible within the technological framework for antivirus software to understand application communications or analyse application behaviour through the deep inspection of intrusion prevention packets, whether on individual basis or when reassembled into their original sequence. Similarly, network-level antivirus may detect a small number of known, easily identifiable security threats by simply examining pre-programmed patterns (Citrix Systems 2006).   Installation of antivirus is the best known way of protecting android and windows mobile phones. The best types of antivirus are the application firewalls since they operate at the application layer instead of the network level. The application firewalls are able to enforce correct application behaviour while preventing any malicious activity. This is because the firewalls are able to inspect the actual internet communication and understand the context of all client requests and application responses through which they are sent to the internet. A complete mobile phone security application needs to offer full protection of all the elements of an application as well as users of the application. In most cases however, security applications for mobile phones are only limited to the application programme and application data (Citrix Systems 2006). Thesis Statement Despite web devices continuing to face significant security threats, mobile phones go completely unprotected while web browsing, downloading applications, checking e-mail, conducting online banking and connecting to social networking sites like Twitter and Facebook. While mobile attacks are increasing rapidly and hackers are financially motivated to steal data, identities, and intercept corporate communications, it has become critical to protect mobile devices such as android phone and Windows phones. Background of the study Smartphone security is the process of preventing and detecting unauthorized use of your system. Prevention measures help you to stop unauthorized users (also known as intruders) from accessing any part of your mobile phone system. Detection helps you to determine whether or not someone attempted to break into your system, if they were successful, and what they may have done. We use android and windows mobile for everything from banking and investing to shopping and communicating with others through email or chat programs.   Although you may not consider your communications top secret, you probably do not want strangers reading your email, using your phone to attack other systems, sending forged email from your phone, or examining personal information stored on your phone (such as financial statements). There are a variety of antivirus software packages that operate in many different ways, depending on how the vendor chose to implement their software. What they have in common, though, is that they all look for patterns in the files or memory of your Smartphone that indicate the possible presence of a known virus. Antivirus packages know what to look for through the use of virus profiles (sometimes called signatures) provided by the vendor. New viruses are discovered daily. The effectiveness of antivirus software is dependent on having the latest virus profiles installed on your Smartphone so that it can look for recently discovered viruses. It is important to keep these profiles up to date. Chapter 2: Android Phone Emulators An android mobile phone is a phone fitted with a set of software consisting of operating systems, middleware and other major applications. The main features of android include application framework for facilitating reuse and replacement of components, Dalvik virtual machine which is optimised for mobile devices, optimised graphics, an integrated browser, media tools for common audio, video and still image formats, SQLite for structured data storage, and GSM Telephony. Other features include Bluetooth, Camera, and Rich development consisting of a device emulator, tools for debugging, memory and performance profiling. Android technology is dependent on Linux version 2.6 to power the main system servicing including security, memory management, process management, network stack, and driver models (Android Developers 2010). Android technology is made up of a multi-process system in which each application runs in its own process. A standard Linux facility is responsible for coordinating security between different applications such as user and group identifications assigned to the applications in Android mobile phone. The crux of the security applications is on the basis of the concept that no application, by default, has access to perform any operation with a potential of adversely impacting on other applications, the operating system, or the user. The applications that the Linux facility must grant permission include reading or writing the user’s private data, reading or writing another application’s file, performing network access, and keeping the device awake. The permission that an application requires is statistically declared in that application so that Linux facility can master the upfront during installation and not subject to change thereafter (Android Developers 2010). The antivirus software for mobile forms utilises various virus detection methods. The two main virus detection methods include signature based detection and behaviour based detection. Signature Based Detection makes use of virus signatures dictionary to compare the files when checking for viruses. A signature dictionary is a database containing very many virus signatures which the software manufacturer has so far found. The user is expected to continually update the virus signature directory as when new viruses, worms, Trojans, and other malicious programs appear. Failure to update the dictionary may lead to failure of the software to detect emerging viruses. The behaviour Based Detection is designed to monitor and control any activities in the device system for suspicious program behaviour. In the event that a suspicious behaviour is detected, the software probes further into that suspicious behaviour by applying the signature based detection to countercheck whether the activity is malicious or not. In the event that the suspicious program is malicious, an alert will be generated to notify the user. Android emulator is a virtual mobile device which runs on a phone system and allows the user to prototype, develop, and test android applications for possible malicious programs without necessarily using a physical device. This device mimics all the hardware and software features of a phone save for the fact that it cannot receive or make a call. As soon as a particular application starts to run on the emulator, it may make use of the services of the android platform to invoke other applications, access the network, and notify the user. The emulators also contain various debug capabilities like console from which the user can log kernel output, simulate application interrupts, and simulate latency effects and dropouts on the data channel (Android developers 2010). As stated earlier, android utilises a multi-process system in which each and every application runs on its own process. Since majority of the security between applications is granted at the process level, android emulators provide more detailed security features through a permission mechanism that enforces restriction on the specific operations that any particular process can perform and permission for granting ad-hoc access to specific pieces of data. While the emulators ensures that no application acts in a manner that can adversely affect another application, it is still possible for an application to encroach into the actions of another application as long as permission is forehand obtained in order to perform the foreign function not provided by the basic nucleus (Vennon 2010). The android emulators can also disallow these extraneous permissions on the basis of the certificates that were used to sign the application or by simply prompting the user. The permission that an application will require to function outside its nucleus is statistically declared by the emulators within the application and will be relayed to the Smartphone user, and the permission will not change. The android emulators consider malware to be malicious software designed to infiltrate a Smartphone system without the user’s informed consent (Vennon 2010).

Thursday, January 23, 2020

If Time Could Be Saved In A [in a] Bottle :: Essays Papers

If Time Could Be Saved In A [in a] Bottle [Nice title -- I wish more students put more thought into their titles.] 1 Anyone who has much exposure to the geriatric population knows that some elderly people are very content with their lives. Even though their bodies may not possess the same physical capabilities that they did in youth, they are surrounded by an aura of contentment that almost make one envious of the inner peace reaped as compensation for a life lived to its fullest capacity. [SV Agr - 1] Given another chance at youth, they would not change the path their lives have taken. [The first two paragraphs could have been combined into one.] 2 There arc others who are bitter with the game that mother nature has played with them. They feel they have not been dealt a fair hand by fate and this is reflected in their manner both physically and spiritually. This is an accurate portrayal of the four friends in the short story written by Nathaniel Hawthorne entitled "Dr. Heidegger's Experiment." [Titles] As the theme of this story reveals, given a second chance at life, is it possible for a person to change their behavior. [The theme of a work should probably not be stated as a question, i.e., either the work suggests that people can change their behavior, or that they cannot. This essay, for example, goes on to suggest that they cannot (or at least that they do not).] 3 Each of the four friends had chosen a lifestyle in which they had temporarily basked in the glow of prosperity, only to lose everything that represents success and respect as a result of their behavior. The description of Dr Heidegger's study -- dim, old fashioned, covered with cobwebs and dust -- parallels the physical description provided by the narrator of the four friends that have gathered for the experiment. The strength of their bodies has faded and left them withered and wrinkled shells of their former selves. The dark, dank atmosphere of the study reflects their melancholy personalities. They are characterized as gray, decrepit, sapless, miserable creatures. Although the the four friends had the opportunity in life to create their own pleasant memories to recall, each of them chose a path in life that left them with no fond recollections.

Tuesday, January 14, 2020

Water Scarcity

Abstract Well, human is facing a serious challenge of water resource which will be delectated. Therefore I collect some reference from Internet. My thesis is that I will use increase water supply as my original solution which transfers the salt sea water into fresh water. (Water solution methods in appendices)The purpose is searching how to reduce water scarcity in my country. Besides, I will talk about three issues the uneven distribution, water pollution and hard water in China, then I am supposed to provide one method which is desalination to dress the scarcity.My method can transport the 97% sea water to the fresh water in order to solve the water scarcity. Introduction Now people have witnessed the rapid development of the world through using a lot of nature resources like oil, coal and water. The environment problem becomes more serious, for example the 20 lakes in China dry up each year. Over the past 50 years country has lost more than 1000 natural water reservoirs. This is a lmost 10000 km2of the water surface. The main reason of this is the active development of industry.China overuses fresh water. Industrial waste water entering the lakes contains chemical compounds came from metallurgy, textile, pharmaceutical, food, pulp and paper industries. (G. T. Frumin, 2011)For the whole world, if people don’t have water, human cannot survive anymore. Absolutely, water is dominative in biosphere as a whole, like the water circulation, climate, agriculture and so forth. Every animal in the earth cannot alive without water; also water is an excellent solvent which can transport the nutrient and waste products.Actually, the water is transparent to visible and ultraviolet light. This means that (pure) water is colorless and allows light to penetrate, thus allowing photosynthesis to take place at considerable depths. That are why water is so important in biosphere. Let’s see the history of the water scarcity. If we trace the origin of the point, I thin k we can say the First Industry Revolution. After Britain open the world and do into a fast-paced development. Myriad resources have been used to invent the technologies, involving water.After that, many countries waste plenty of water in order to become stronger. Some now many countries are depleted the water. Hence, my purpose is searching how to reduce water scarcity in China. The thesis statement is that I will use method that increase water supply as my original method which transfer the salty water into fresh water. Methodology My topic is that discusses the issues and serves a practical method for the problem. In order to make the information convincing, I have found several websites information to embody the topic.I will search for issues, the uneven water distribution, water pollution, and hard water, and find some current action solving the problems. Then, I will suggest some laws and suggests for the water scarcity. Besides, I will use folder and charts to clear my inform ation. The research can me understand the problems and solution. It is because various and accurate information might indicate a significant number of factors about issues meanwhile tremendous detail also might confirm it. Finding Table 1. 0 water issues affecting China today |description |Current plan | |Issue 1 |Water is uneven distribute |transfer the water from south to the north | |Issue 2 |Water pollution |Harness and formulate more laws( organization) | |Issue 3 |Some water can not drink ( salty , hard) | Chemical reaction |As you can see from the table, although China is a big country, it still meets 3 main fresh water issues. Firstly, the amount of fresh water for everyone is very small. Although the China accounted for approximate 6% amount fresh water resource in the world, the average of each Chinese people is lower than the average of world (around 20%). It is because there is a substantial proportion of land in China (thirst in world) meanwhile there is a sizable perce ntage of population in china (about13 billion). China supports 20 percent of the world population with only 7 percent of its water.China has roughly the same amount of water as the United States but five times the population. The shortages are particularly acute in northern China where half the population lives with only 15 percent of China’s water. (Jeffrey Hays 2013) As a consequence, the fresh water resource might distribute unbalanced in difference areas in China. For example, in Beijing, Hangzhou, the big south cities in China, people have lot water, so they always waste the water and don’t build the awareness of saving water. But in some dry places, like Shanxi, the rural people even have no water to drink. It is unfair for people in those areas. Uneven distribution water graph in the appendices) Secondly, water pollution and water stress is reached a primary issue in a massive amount of city in China. Water shortages and water pollution in China are such a probl em that the World Bank warns of â€Å"catastrophic consequences for future generations. † To be more exact that there were total of 600 cities was investigated and around 400 cities witnessed huge water pollution or water stress. Half of China’s population lacks safe drinking water. Nearly two thirds of China’s rural population—more than 500 million people—use water contaminated by human and industrial waste. Jeffrey Hays 2012) Ultimately, another water issue is that there is a considerable quantity of water which cannot be used efficiently by numerous citizen and manufacture. For example, the water is too hard to drink. In my hometown, Zhengzhou, the water is hard, if the water is boiling, there always lefts a lot of water logging which means the water contains many Ca and Mg. In America, since 1972, they have published the law about the water scarcity and safety. But China doesn’t have the completely law to limit the water scarcity. There have three methods to solve all the problems.According to uneven water distribution, China has run a method that transports the water from rich south area to the poor north area. Thus, people who live in north can have more water. Second, here are many solutions are suggested in China. A famous project named South-to-North Water Diversion Project (NSBD. 2008,) is established in 2000s in China which is used to relive the water stress of northern areas like Shanxi; meanwhile a significant number of money is invested to clean the water which had contaminated and project the recent fresh water.Third, the water in many cities cannot eat because it is hard and salty. So, China now uses some chemical to moderate the hard water and spill some wells to help people drink more fresh water. Discussion I prefer to increase water supply as my original solution . People now have invented many ways to address the scarcity of water problems. I have discussed three in my finding. According to the fir st issue which is the uneven water distribution, I think the desalination method is the most useful way, and I believe it can solve the problem of the shortage of the water.Water desalination is the removal of salts and dissolved solids from saline water (brackish or seawater), also known as Desalting or Desalinization. In addition to the removal of minerals, the process removes most biological or organic chemical compounds. Most desalination processes are based either on thermal distillation or membrane separation technologies. (SWP2011) Seawater desalination is an increasingly important solution to the rising water scarcity afflicting many of the world's regions. In the world, the proportion of sea water is 97. 47%, the fresh water is only 2. 3%. So if human can transfer this huge amount sea water to fresh water, human will have more fresh water to drink, and survive. Many countries like mid eat and more than 125 countries have attempted these way, because it is economical and eff icient. More than 70 % people live near the sea in 120 miles. Besides, the water in the earth is 78%. Thus, it is a really large number for the water scarcity. Human can use less money and get more water in the future. The countries have experimented many times and this method has become more perfect. Conclusion and RecommendationIn the statement of findings, I created a new solution of using fresh water effectively, I believe it will be enacted by government, because this solution needs a few investments, but it might a huge advantage of making more fresh water in the future. Through using desalination methods, people can transfer the 97% sea water into fresh water for people. As I said, it is a huge potential area for water scarcity. If these can completely use in China, people in the dry areas will have water to drink and survive. Reference G. T. Frumin (2011) Fresh water lakes in China. [Online]. Available at: http://wenku. baidu. om/view/9d4aa2be65ce050876321339. html [Accessed 9 March 2013] Jeffrey Hays (2013) FACTS AND DETAILS [Online]. Available at: http://factsanddetails. com/china. php? itemid=317 [Accessed 9 March 2013] Jeffrey Hay (2012) FACTS AND DETAILS [Online] Available at: http://factsanddetails. com/china. php? itemid=391 [Accessed 9 March 2013] NSBD (2008) China daily [Online] Available at: http://usa. chinadaily. com. cn/business/2012-12/05/content_15989621. htm [Accessed 9 March 2013] SWP (2011) International decade for action ‘water for life’ 2005-2015 [Online]. Available at: http://www. un. org/waterforlifedecade/scarcity. html [Accessed 9 March 2013] Appendices Chart 2. 0 Water supply in the world [pic] Table 2. 0 Water solution | |Water supply |Water demand | |Increase water supply |increase |same | |Decrease water supply |same |decrease | |both |increase |decrease | Water Scarcity Global Water Scarcity – Problems And Solutions Posted: 23. 12. 2009 author: Tater, Prof. Dr. Sohan Raj Importance of Water Water is a source of life of every living organism. Without water living beings cannot survive their lives. There is 60% water in human gross body. It is a natural resource that sustains our environments and supports livelihood. Water is the blue gold, and that future wars will be fought for water. So, not a single drop of water received from rain should be allowed to escape into the sea without being utilized for human benefit. The vast majority of the Earth’s water resources are salty water, with only 2. % being fresh water. Approximately 70% of fresh water available on planet is in the icecaps of Antarctica and Greenland leaving the remaining 0. 7% of total water resources worldwide available for consumption. However from this 0. 7%, roughly 87% is allocated to agricultural purposes. These statistics are particularly illustrative of the drastic p roblem of water scarcity facing humanity. Water scarcity is defined as per capital supplies less than 1700 M3/year. The comprehensive assessment of water management in agriculture revealed that one in three people are already facing water shortage (2007).Around 1. 2 billion people, or almost one-fifth of the world’s population, live in areas of physical scarcity, while another 1. 6 billion people, or almost one quarter of the world’s population, face economic water shortage (where countries lack the necessary infrastructure to take water from rivers and aquifers); nearly all of which are in the developing countries. Agriculture is a significant cause of water scarcity in much of the world since crop production requires upto 70 times more water than is used in drinking and other domestic purposes.The report says that a rule of thumb is that each calorie consumed as food requires about one litre of water to produce. The amount of water in the world is finite. The number of us is growing fast and our water use is growing even faster. A third of world’s population lives in water stressed countries now. By 2025, this is expected to rise to two-third. The UN recommends that people need a minimum of 50 litres of water a day for drinking, washing, cooking and sanitation. In 1990, over a billion people did not have even that. Causes of Global water CrisisThere are four main factors aggravating water scarcity: * Population Growth: In the last century, world population has tripled. It is expected to rise from the present 6. 5 billions to 8. 9 billions by 2050. Water use has been growing at more than twice the rate of population increase in the last century, and although there is no global water scarcity as such, an increasing number of regions are chronically short of water. * Increased urbanization will focus on the demand for water among an over more concentrated population. Asian citizen alone are expected to grow by 1 billion people in the next 2 0 years. High level of consumption: As the world becomes more developed, the amount of domestic water that each person used is expected to rise significantly. * Climate change will shrink the resources of fresh water   (a) Pollution and disease Global water consumption rose six fold between 1900 and 1995 more than double the rate of population growth – and goes on growing as farming, industry and domestic demand all increase. As important as quantity is quality – with pollution increasing in some areas, the amount of useable water declines.More than five millions people die from water-borne diseases each year, 10 times the number killed in wars around the globe. Seventy percent of water used world wide is used for agriculture, much more will be needed if we are to feed world’s growing population – predicted to rise from about six billion to 8. 9 billion by 2050. Consumption will star further as more people expect western – style lifestyle and die ts – one kilograms of grain fed beef needs at least 15 cubic meters of water, while a kilo of cereals needs only upto three cubic meters. b) Poverty and Water The poor are the ones who suffer most. Water shortage can mean long walks to fetch water, high price to buy it, food insecurity and disease from drinking dirty water. But the very thing needed to raise funds to tackle water problems in poor countries, economic development – requires yet more water to supply the agriculture and industries which drive it. The UN-backed World commission on water estimated in 2000 that an additional $100 billion a year would be needed to tackle water scarcity would wide.Even if the money can be found, spending it wisely is a further challenge. Dams and other large – scale projects now affect 60% of the world’s largest rivers and provide millions with water. As ground water is exploited, water tables in part of China, India, West Asia, the former Soviet Union and the Wes tern United States are dropping – in India by as much as 3 meters a year in 1999. (c) Melting of Glaciers Global warming is melting glaciers in every region of the world, putting millions of people at risk from floods, draughts and lack of drinking water.Glaciers are ancient rivers of compressed snow that creep through the landscape, shaping the planet’s surface. They are the Earth’s largest fresh water reservoir, collectively covering an area the size of South Antarctica. Glaciers have been retreating worldwide since the end of the little Ice Age (around 1850), but in recent decades glaciers have began melting at rates that cannot be explained by historical trends. One in three people is enduring one form or other of water scarcity, according to a new report from the International Water Management Institute (IWMI).The report says that about one- quarter of the world’s population lives in areas where water is physically scare, while about one – six th of humanity over a billion people – live where water is economically scares, or places where â€Å"Water is available in rivers and aquifers, but the infrastructure is lacking to make thick water available to people. † In a world of unprecented wealth, almost two million children die-each year for want of a glass of clean water and adequate sanitation.Millions of women and young girls are forced to spend hours collecting and carrying water, restricting their opportunities and their choices. Water – bone infectious diseases are growing in same of the world’s poorest countries. Human development reports 2006 investigates the underlying causes and consequences of a crisis that leaves 1. 2 billion people without access to safe water and 2. 6 billion without access to sanitation. In 2006 the International Management Institute, reported that water scarcity affected a full third of world population.In 2007 the Intergovernmental panel on climate change predict ed that due to climate change, the number of people facing water scarcity would grow. Other, too, say that there is a global water crisis, the availability of water is dwindling, the world is running out of the water. Solution of water scarcity (a) Water and Climate change Water scarcity is expected to become an even more important problem than it is today. There are several reasons for this: * First the distribution of precipitation in space and time is very uneven, leading to tremendous temporal variability in water resources worldwide (Oki et al. 003). For example, the Atacama Desert in Chile receives imperceptible annual quantities of rainfall where as Mawsynram, Assam, India receives over 450 inches annually. If the fresh water on the planet were divided equally among the global population, there would be 5000 to 6000 M3 of water available for everyone, every year. * Second the rate of evaporation varies a great deal, depending on temperature and relative humidity, which impact the amount of water available to replenish ground water supplies.The combination of shorter duration but more intense rainfall (meaning more run off and less infiltration) combined with increased evapotranspiration (the sum of evaporation and plant transpiration form the earth’s land surface to atmosphere) and increased irrigation is expected to lead to ground water depletion. According to world bank, as many as two billion people lack adequate sanitation facilities to protect them from water – borne disease, while a billion lack access to clean water altogether.According to United States, which has declared 2005-15 the â€Å"Water for life† decade, 95 percent of the world cities still dump water sewage into their water supplies. Thus it should come as no surprise to know that 80 percent of all the health maladies in developing countries can be traced back to unsanitary water. Developed countries are not immune to fresh water problem either. Researcher found a six-fold increase in water use for only a two-fold increase in population size in the United States since 1900.Such a trend reflects the connection between higher living standards and increased water usage and underscores the need for more sustainable management and use of water supplies even in more developed societies. (b) Technical Solution New technology can help, however, especially by cleaning up pollution and so making more water useable, and in agriculture, where water use can be made for more efficient, drought – resistant plants can also help. Drip irrigation drastically cuts the amount of water needed, low-pressure sprinklers are an improvement, and even building simple earth walls to trap rainfall is helpful.Some countries are now treating wastewater so that it can be used – and drunk – several times over. Desalination makes seawater, but takes huge quantities of energy and leaves vast amount of brine. (c) Climate Change In any case, it is not just u s who need water, but every other species that shares the planet with us – as well as the ecosystems on which we, and they, rely. Climate change will also have an impact, some areas will probably benefit from increase rainfall, but other are likely to be loser. We have to rethink how much water we really need if we are to learn how to share the Earth’s supply.While dams and other large-scale schemes play a big role worldwide, there is also a growing recognition of the value of using the water already have more efficiently rather than harvesting ever more from our rivers and aquifers. For millions of people around the world, getting it right is a matter of life and death. (d) The hydrological Cycle The hydrological cycle begins with evaporation from the surface of ocean or land, continues as air carries the water vapour to locations where it forms clouds and eventually precipitates out.It then continues when the precipitation is either absorbed into the ground or runs o ff to the ocean, ready to begin the cycle over again in an endless loop. The amount of time needed for ground water to recharge can vary with the amount of intensity of precipitation. With world population expected to pass nine billion by mid-century, solutions to water scarcity problems are not going to come easy. Some have suggested that technology – such as large-scale salt water desalination plants – could generate more water for the world use.But environmentalists argue that depleting ocean water is no answer and will only create other big problems. In any case, research and development into improving desalination technologies is ongoing, especially in Saudi Arabia, Israel and Japan. Already an estimated 11,000 desalination plants exist in some 120 countries around the world. Water Management When we think about water scarcity, then, we should not be focusing on an absolute shortfall between the total needs of the earth’s population and the available supply , but on where the useable water is and what it costs to bring enough clean water to where people are.Applying market principles to water would facilitate a more efficient distribution of supply everywhere. Analysts at Harvard Middle East Water Project, for example, advocate assigning a monetary value to fresh water, rather than considering it a free natural commodity. They say such a approach could help mitigate the political and security tensions caused by water scarcity. Falling prices in membrane filtering technology (reverse osmosis) and advances in ultraviolet and ozone disinfections have led to a wide array of off – the shelf water technologies.Large companies such as GE, Siemens and Dow developed these technologies for consumer markets in industrial countries, spurred by the exploding market in bottled water, but they offer interesting spin-offs in developing countries. As individuals, we can also reign in our own water use to help conserve what is becoming an ever mo re precious resource. We can hold off on watering our lawns in times of drought. And when it does rain, we can gather gutter water in barrels to feed garden hoses and sprinklers. We can turn off the tapes while we brush our teeth or shave, and take shorter showers.In other world, â€Å"Doing more with less is the first and easiest step along the path toward water scarcity. † As a reliable and affordable technology, desalination has come of age in the last two decades. For Iceland cities such as Singapore, or for a new five star hotel on a Pacific atoll, a desalination plant is now standard technology. The cost of desalination has come down rapidly and now ranges from $ 0. 5 – 1. 00 per cubic meter, depending upon price of energy. This is a reasonable price for drinking water in a developed urban area or hotel where the impact on room prices will be only a few dollars per day.For agricultural purposes, however the value of water ranges from several cents per cubic meter to grow crop such as corn, wheat, rice or sugar cane, to half a dollar for intensive flower or vegetable production. Desalination is clearly not an economical option. Desalination is similarly impractical for poor people who live on less than $ 1 or $ 2 per day. Conclusion Water is a source of life of every living organism. Without water living beings cannot survive their lives. There is 60% water in human gross body. It is a natural source that sustains our environments and supports livelihood.Water is the blue gold, and that future wars will be fought for water. So, not a single drop of water received from rain should be allowed to escape into the sea without being utilized for human benefit. Present global water scarcity is defined as per capita supplies less than 1700 M3/year. Around 1. 2 billion people, or almost one-fifth of the world’s population, live in areas of physical scarcity while another 1. 6 billion, or almost one quarter of the world’s population, fac e economic, water shortage. A third of world’s population lives in water stressed countries now.The report says that a rule of thumb is that each calorie consumed as food requires about one litre of water to produce. Causes of Global water crisis are – population growth, increased urbanization, high level of consumption and climate change which shrink the resources of fresh water, melting of glaciers. More than five millions people die from water-borne diseases each year around the Globe due to drinking polluted water. Underground water table is depleting on an average 3 meters a year as per research conducted in India. One in three people is enduring one form or other of water scarcity around the Globe.Almost two million children die each year for want of a glass of clean water and adequate sanitation. If the fresh water on the planet were divided equally among the global population, there would be 5000 to 6000 M3 of water available for every one, every year. Technica l solutions of water scarcity around Globe are Drip irrigation, recycling of sewage water and to make it usable for agriculture, vegetables and bathroom purposes, scientific work over hydrological cycle formation, desalination of saline water, Increasing R. O. technology.We should advocate assigning a monetary value to fresh drinking water, rather than considering it a free natural commodity. Individually every globe citizen should save water in bathing cooking, gardening i. e. their daily use purposes. References * Goudie, As (2006). Global Warming and Fluvial Geomorphology Volume 79, September 2006, 37th Binghamton Geomorphology Symposium – The human role in changing Fluvial Systems. * Huntington, T. G. (2005) Evidence for Intensification of the global water cycle: Review and Synthesis. Journal of Hydrology, 319. * Konikow, Leonard et al. 2005). Ground water Depletion: A Global Problem. Hydrogeology (13). * Nearing, M. A. et al. (2005). Modeling Response of Soil Erosion and Run off to changes in Precipitation and cover. Catena, 61. * Oki, Taikan et al. (2006). Global hydrological Cycles and World Water Resources, Science; 313. * Vorasmarty, Charles et al. (2000). Global Water Resource: Vulnerability from Climate Change and Population Growth, Science, 289. * World Water Assessment Programme, 2003. Water for people, Water for life: The United Nations world water development report. UNESCO: Paris. Water Scarcity Abstract Well, human is facing a serious challenge of water resource which will be delectated. Therefore I collect some reference from Internet. My thesis is that I will use increase water supply as my original solution which transfers the salt sea water into fresh water. (Water solution methods in appendices)The purpose is searching how to reduce water scarcity in my country. Besides, I will talk about three issues the uneven distribution, water pollution and hard water in China, then I am supposed to provide one method which is desalination to dress the scarcity.My method can transport the 97% sea water to the fresh water in order to solve the water scarcity. Introduction Now people have witnessed the rapid development of the world through using a lot of nature resources like oil, coal and water. The environment problem becomes more serious, for example the 20 lakes in China dry up each year. Over the past 50 years country has lost more than 1000 natural water reservoirs. This is a lmost 10000 km2of the water surface. The main reason of this is the active development of industry.China overuses fresh water. Industrial waste water entering the lakes contains chemical compounds came from metallurgy, textile, pharmaceutical, food, pulp and paper industries. (G. T. Frumin, 2011)For the whole world, if people don’t have water, human cannot survive anymore. Absolutely, water is dominative in biosphere as a whole, like the water circulation, climate, agriculture and so forth. Every animal in the earth cannot alive without water; also water is an excellent solvent which can transport the nutrient and waste products.Actually, the water is transparent to visible and ultraviolet light. This means that (pure) water is colorless and allows light to penetrate, thus allowing photosynthesis to take place at considerable depths. That are why water is so important in biosphere. Let’s see the history of the water scarcity. If we trace the origin of the point, I thin k we can say the First Industry Revolution. After Britain open the world and do into a fast-paced development. Myriad resources have been used to invent the technologies, involving water.After that, many countries waste plenty of water in order to become stronger. Some now many countries are depleted the water. Hence, my purpose is searching how to reduce water scarcity in China. The thesis statement is that I will use method that increase water supply as my original method which transfer the salty water into fresh water. Methodology My topic is that discusses the issues and serves a practical method for the problem. In order to make the information convincing, I have found several websites information to embody the topic.I will search for issues, the uneven water distribution, water pollution, and hard water, and find some current action solving the problems. Then, I will suggest some laws and suggests for the water scarcity. Besides, I will use folder and charts to clear my inform ation. The research can me understand the problems and solution. It is because various and accurate information might indicate a significant number of factors about issues meanwhile tremendous detail also might confirm it. Finding Table 1. 0 water issues affecting China today |description |Current plan | |Issue 1 |Water is uneven distribute |transfer the water from south to the north | |Issue 2 |Water pollution |Harness and formulate more laws( organization) | |Issue 3 |Some water can not drink ( salty , hard) | Chemical reaction |As you can see from the table, although China is a big country, it still meets 3 main fresh water issues. Firstly, the amount of fresh water for everyone is very small. Although the China accounted for approximate 6% amount fresh water resource in the world, the average of each Chinese people is lower than the average of world (around 20%). It is because there is a substantial proportion of land in China (thirst in world) meanwhile there is a sizable perce ntage of population in china (about13 billion). China supports 20 percent of the world population with only 7 percent of its water.China has roughly the same amount of water as the United States but five times the population. The shortages are particularly acute in northern China where half the population lives with only 15 percent of China’s water. (Jeffrey Hays 2013) As a consequence, the fresh water resource might distribute unbalanced in difference areas in China. For example, in Beijing, Hangzhou, the big south cities in China, people have lot water, so they always waste the water and don’t build the awareness of saving water. But in some dry places, like Shanxi, the rural people even have no water to drink. It is unfair for people in those areas. Uneven distribution water graph in the appendices) Secondly, water pollution and water stress is reached a primary issue in a massive amount of city in China. Water shortages and water pollution in China are such a probl em that the World Bank warns of â€Å"catastrophic consequences for future generations. † To be more exact that there were total of 600 cities was investigated and around 400 cities witnessed huge water pollution or water stress. Half of China’s population lacks safe drinking water. Nearly two thirds of China’s rural population—more than 500 million people—use water contaminated by human and industrial waste. Jeffrey Hays 2012) Ultimately, another water issue is that there is a considerable quantity of water which cannot be used efficiently by numerous citizen and manufacture. For example, the water is too hard to drink. In my hometown, Zhengzhou, the water is hard, if the water is boiling, there always lefts a lot of water logging which means the water contains many Ca and Mg. In America, since 1972, they have published the law about the water scarcity and safety. But China doesn’t have the completely law to limit the water scarcity. There have three methods to solve all the problems.According to uneven water distribution, China has run a method that transports the water from rich south area to the poor north area. Thus, people who live in north can have more water. Second, here are many solutions are suggested in China. A famous project named South-to-North Water Diversion Project (NSBD. 2008,) is established in 2000s in China which is used to relive the water stress of northern areas like Shanxi; meanwhile a significant number of money is invested to clean the water which had contaminated and project the recent fresh water.Third, the water in many cities cannot eat because it is hard and salty. So, China now uses some chemical to moderate the hard water and spill some wells to help people drink more fresh water. Discussion I prefer to increase water supply as my original solution . People now have invented many ways to address the scarcity of water problems. I have discussed three in my finding. According to the fir st issue which is the uneven water distribution, I think the desalination method is the most useful way, and I believe it can solve the problem of the shortage of the water.Water desalination is the removal of salts and dissolved solids from saline water (brackish or seawater), also known as Desalting or Desalinization. In addition to the removal of minerals, the process removes most biological or organic chemical compounds. Most desalination processes are based either on thermal distillation or membrane separation technologies. (SWP2011) Seawater desalination is an increasingly important solution to the rising water scarcity afflicting many of the world's regions. In the world, the proportion of sea water is 97. 47%, the fresh water is only 2. 3%. So if human can transfer this huge amount sea water to fresh water, human will have more fresh water to drink, and survive. Many countries like mid eat and more than 125 countries have attempted these way, because it is economical and eff icient. More than 70 % people live near the sea in 120 miles. Besides, the water in the earth is 78%. Thus, it is a really large number for the water scarcity. Human can use less money and get more water in the future. The countries have experimented many times and this method has become more perfect. Conclusion and RecommendationIn the statement of findings, I created a new solution of using fresh water effectively, I believe it will be enacted by government, because this solution needs a few investments, but it might a huge advantage of making more fresh water in the future. Through using desalination methods, people can transfer the 97% sea water into fresh water for people. As I said, it is a huge potential area for water scarcity. If these can completely use in China, people in the dry areas will have water to drink and survive. Reference G. T. Frumin (2011) Fresh water lakes in China. [Online]. Available at: http://wenku. baidu. om/view/9d4aa2be65ce050876321339. html [Accessed 9 March 2013] Jeffrey Hays (2013) FACTS AND DETAILS [Online]. Available at: http://factsanddetails. com/china. php? itemid=317 [Accessed 9 March 2013] Jeffrey Hay (2012) FACTS AND DETAILS [Online] Available at: http://factsanddetails. com/china. php? itemid=391 [Accessed 9 March 2013] NSBD (2008) China daily [Online] Available at: http://usa. chinadaily. com. cn/business/2012-12/05/content_15989621. htm [Accessed 9 March 2013] SWP (2011) International decade for action ‘water for life’ 2005-2015 [Online]. Available at: http://www. un. org/waterforlifedecade/scarcity. html [Accessed 9 March 2013] Appendices Chart 2. 0 Water supply in the world [pic] Table 2. 0 Water solution | |Water supply |Water demand | |Increase water supply |increase |same | |Decrease water supply |same |decrease | |both |increase |decrease |

Monday, January 6, 2020

Similarities Between The Ancient River Valley And Mesopotamia

The Ancient River Valley’s included four main Civilizations; Mesopotamia, Egypt, Indus Valley, and the Yellow River. One of the main land was Mesopotamia that is also called â€Å"the land between the rivers† as it divided the rivers Tigris and Euphrates. The other lands did not have as big of rivers as Mesopotamia but still had another mainland named Yellow River in China. These lands, because they grew around water, served a high purpose to attract people to fish, gather wood, and to hunt for nearby animals. Mesopotamia(founded in 3100 BC) Mesopotamia was the a great city that revolved around shipping and trading as it was around water. The supplies helped this city grow and the economy helped create their own self-run civil government.†¦show more content†¦Egypt(founded in 3150 BC) Egypt revolved around being overthrown by Kings and their Queens with heirs once one leaves. Their government surrounded monarchy of higher order over their peasants who bring them what they wish and for what to build. In Egypt the people though the Kings and Queens represented actual gods and never questioned why they need them in the first place as we did. A Queen, who not much information is known about, was one of the true top remarkable rulers of Egypt. When all of the rulers before passed, it was Queen Hatshepsut knowing to have reigned â€Å"peaceably, building temples, and monuments†¦Ã¢â‚¬  resulting in the flourish of Egypt. However, because this was so rare, she began to create herself into a male figure to possess the qualities needed to lead her people. Their society was limited down for women as to say that they were only accessories to others, while some just bring them along. One of the most important information we discovered is how in her waking, their city prospered with more money than anywhere else as she did not care about fighting wars but instead saw fit to treat her people as to where they needed. One main important structure was called â€Å"Djeser-djeseru† which means â€Å"holiest of holy places,† to dedicate it to Amon(god of air and wind). Through all she has done, her stepson, during his reign, decided toShow MoreRelatedMesopotamia vs. Indus River Valley Essay707 Words   |  3 PagesMesopotamia vs. Indus River Valley 9/26/12 Ancient Mesopotamia and the Indus River Valley civilization were two incredibly productive and successful empires. While Mesopotamian politics were slightly less focused on religion and more on other aspects, the two societies shared many social characteristics. They both had defined social hierarchies, as well as similar views on gender roles. These traits are helpful in explaining the similarities and differences betweenRead MoreComparing The River Valley Civilizations1509 Words   |  7 PagesComparing and Contrasting River Valley Civilizations In the following treatise, the research that will be presented will provide criteria involving similarities and differences in three attributes of life in the four primary river valley civilizations. The river valley civilizations are composed of Mesopotamia, Egypt, the Indus Valley, and China. While each of these civilizations is unique in their habits and traditions, they share many similar qualities. For this work to be as comprehensive asRead MoreMesopotamia, Egypt, and Indus Valley Essay813 Words   |  4 Pagesfirst civilizations, Mesopotamia and Ancient Egypt. They had many similarities, such as characteristics of early civilizations and social structures, but they also had their differences. 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MesopotamiaRead MoreComparing The Nile, Mesopotamia, And Indus Civilizations1475 Words   |  6 PagesComparing the Nile, Mesopotamia, and Indus Civilizations The civilizations of the Nile River valley, the Mesopotamia valley, and Indus Valley marked human progress toward fixed settlements and the development of a rich culture. These civilizations shared many characteristics that contributed to their success. What made these civilizations unique were the contributions that each one gave to the world. They contributed their own ideas and accomplishments in the areas of religion, science, and mathematicsRead MoreSimilarities And Differences Between Civilizations, Mesopotamia And Ancient China868 Words   |  4 Pagesof histories well-known civilizations, Mesopotamia and Ancient China had similar experiences in the beginnings of their histories, they still have a different cultural and political views. 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