全國中小學科展

第三名

Montioring of Cryogenic Features along Roads in Megino-Kangalassky Region,Yakutia

One of the anthropogenic influences on the permafrost landscapes is deforestation and breach of the surface cover at the road constructions. On these areas a development of various cryogenic and postcryogenic processes and features (thermosubsidence, knobs (bilars, baydjarakhs), ravines, small lakes - djyodje) is being observed. Such features can be observed on the territory of Megino- Kangalassky Region, which is situated in the Central Yakutia, as well. During the period from 1998 to 2003 the author carried out monitoring studies of cryogenic features along three roads. Ten areas measuring twenty square metres were put in all. During 6 years of research about 1520 measurements of cryogenic formations parameters were made. Based on the results, it is concluded that elimination of the shadowing effect by trees and removal of the surface cover along the roads have caused thawing of shallow-lying ice wedges, as well as development of various cryogenic processes and features. In this paper, the author presents the basic technologies which are used in road construction in permafrost areas and, based on the research results, proposes a set of measures for rehabilitation of the roadside areas.

SPAREWHEELALERT

It is used by practically everyone that has vehicle. The device checks your spare wheel and wams you when it is going flat.

Waits and Measures

Successful calving is measured by the safe delivery of a healthy calf. Any factors that\r cause dystocia (difficult calving) are undesirable; as it will result in weak or dead calves, stress\r dams and a decrease in profit to the rancher. The most often identified reason for dystocia are\r calves that are too large at birth. Ranchers frequently use sires that will result in calves with\r small birth weights that will be born easy. This is especially true when breeding first calving\r heifers. The selection for small calves at birth results not only in less growth in the uterus but\r also less growth after birth, which means less beef to sell. This means ranchers try to balance\r reasonable growth and reasonable calf size when selecting their sires. Much data has been\r published on birth weight and its selection.

In Tlaxcal Nopalli(Nopal Tortilla)

To contribute to the feeding of the popular sector using a product of the basic basket of\r consumption and in simultaneous form to operate a natural resource, that when being combined\r will derive in a rich product in nutrients. With this project we try to offer to the population an\r innovating product, based on a food of daily but added consumption with all the nutrients of the\r nopal, of this form will be a better nutrition in the tortilla consumers. In Mexico, like in some\r countries of Central America, the maize products, like the tortilla, are the base of the popular\r feeding, its consumption is related closely to the obtaining of energy, calcium, fiber, iron and zinc,\r which usually display deficit levels in the population of the region. The contributions of the nopal\r are diverse, because it counts with some different nutritional and medicinal properties.

Biodiesel:does it make cents?

My project explores the practicality of biodiesel. It researches the argument of food versus fuel, compares the energy efficiencies of petroleum diesel and biodiesel and studies the effect of temperature on biodiesel. To study the effect of temperature on biodiesel, I blended biodiesel with petroleum diesel. Biodiesel blends are represented by the letter B, and the percentage of biodiesel. I used B5, B10, B20, and B50 blends, as well as pure biodiesel. I then observed the reaction of the biodiesel blends with cold weather. My pure biodiesel and B50 blends gelled to an unusable point within 15 minutes outside at -20oC. The B20 blends didn’t gel until about a temperature of -20oC. I have concluded that the B20 blend would be best for the summer, and the B10 or B5 blends would be the best for winter in northern climates, where I live. Although the B10 blends gelled slightly around -30oC, this would only be a problem for northern climates. As I predicted, more energy is produced by biodiesel than is consumed in the production process. The process of making biodiesel uses 0.31 units of energy to get 1 unit of energy out. More energy (1.2 units) is used to produce petroleum diesel than is yielded (1 unit). Although B20 isn’t as energy efficient as B100, the energy factor is still only 0.98 units of energy in for every 1 unit of energy out. When I started this project I thought that Canada would have enough farmland to produce the canola needed to run the country on biodiesel. This is only partly true. Canada would have enough farmland, but only a fraction of that land is actually used to plant canola. By my calculations, Canada has enough canola to generate enough B20 for a year. This may seem like a drawback but realistically, a higher blend would be impractical due to the gelling factor. Also, if a B20 blend was used, land would be available to grow canola for other markets. If B100 was used, there would only be enough diesel for about three months consumption. By using all of the land for biodiesel feedstock, canola would become unavailable for other markets. If canola exports ceased, the countries that depend on our canola will be in a lot of trouble. Canada already produces a lot of canola and vegetable oil. Most of it goes to the fast food industry. The United States produces over three billion gallons of fryer oil yearly. This could provide Canada with a B50 blend for a year. Utilizing used vegetable oil in making biodiesel actually reduces emissions even more. This is accomplished by using a product that would normally go to waste and decompose, producing more carbon dioxide emissions. During this project, I have found that biodiesel is a practical alternative to petroleum diesel, if it is used in a blend. My experiment proves that biodiesel is a fuel alternative that could be implemented immediately, and one that does not require the research needed for other fuel alternatives such as hydrogen or electricity.

A load-balancing strategy for coarse-grained tree searches as applied to fractal image compression

An exact solution to many current computational problems, such as the famous Travelling Salesman Problem (TSP), require a complete tree traversal in order to determine. This is often unfeasible, as the time complexity of the tree traversal grows exponentially with the size of the input, thus leading to an essentially computationally intractable problem. The branch and bound technique is an approach commonly used to speed this process. It entails dynamically pruning off branches of the tree in which the answer is probably not found in, hence reducing the amount of data that is needed to be traversed and the total time and resources required to perform the computation. In this paper, we introduce a new load-balancing strategy for the execution of such a branch and bound algorithm in parallel, using a three-tiered hierarchical approach, to perform fractal image compression, which is essentially a complete tree traversal problem. This novel heuristic is aimed at achieving optimal load-balancing and minimising unnecessary network traffic and bottlenecking, which functions by predicting the optimum search depth and hence controlling the coarseness of the input that is assigned to each worker node. Our scheme additionally enables us to tailor to the specifications of different clusters, as the heuristic is adjusted based on network speed and processor speed, which vary appreciably from cluster to cluster. We further discuss how to apply our method to other large tree search problems, such as the TSP and other NP-complete problems. We have also enhanced an existing load-balancing strategy outlined in Crivelli et. al. (2004, IBM Journal of Research and Development), by prioritising the reallocation of idle worker nodes such that supervisors who are in need of more help receive a larger share of the free workers.

Safety in the building

The purpose: is to protect the building against the fires\r The main idea: is an Automatic emergency exit.\r When fires happen, the smoking detector works, giving sound and light.(signals)\r Then the emergency Exist opens automatically.

Secure safe

A documentary profile about an invention (a secure safe) Introduction: Firstly, we thank Allah, the Lord of all, and the Prophet Mohamed “peace be uponhim”. The importance of scientific innovations and inventions is demonstrated in the development of humanity fulfillment the requirements of modern life. In this respect, the presented innovation and thoughts have appeared in order to help the humanity. Within this context, the man or anyone needs to feel secure as far as his wealth and properties are concerned. Within this regards, the idea of creating (inventing) a secure safe appeared, and this will enhance the perspective of security, and confidence via making a secure safe. It has been stated in our Scared Quran “co-operate and help each other in the constructive and good works and don’t co-operate to do hostility and bad actions. Invention identity: Name of the invention: secure safe Components: sensor, mobile phone, battery, conductive means (wires)How does the invention work? Operating Process Firstly, when approaching or touching the safe body, the electric circuit attached to a sensor in the safe is closed and this will directly get the mobile phone ring. Therefore, the safe’s owner will realize that there is danger about his properties or the money included in the safe. The main objective of the invention: Adding further security to the private and public properties, and enabling the owner to watch or control his properties all time everywhere. Where this invention can be used: usage fields This invention will be used in the security domain as well as that of the economic. It can be employed and used instead of a lot of security persons. The future vision of the invention Its components can be integrated into one unit and therefore the usual size can be minimized. Further, it could be possible to add a camera to the invention to be used for additional purposes in several fields; e.g. cars, premises, house, etc.

Green tea causes preventing cancer

Now a days cancer is one of the most important factor of death in the world so we decided to introduce people one of the easiest way of it’s prevention. However, the relation between green tea and cancer is not completely identified but the research shows that drinking green tea reduce the state of cancer. First we found some information about the green tea compounds then we investigated the cancer factors in different countries and stidied the experiments among 900 women showed that drinking tea reduce the state of ovary cancer. Green tea contains A, B, C, D vitamins & Fe, folic acid &also minerals such as Ca, K, Zn. This useful soft drink is a strong Anti?oxidant so prevent any kinds of cancer & blood clot. Therefore it reduce the state of heart attack. (Up to 31%) So it is not only prevention factor but also it can open a new way to cure different cancers.

A Coin Sorting Box

This project aimed to create a simple model of coin sorter with cheaper price, electricity saving using recycled materials for use in place of manual separation and compatible to the automatic coin sorters commercially available in the market. The principle applied in inventing this device was the gravity force that pushed coins to fall through its upper compartment to the lower part via a slope that determines the coin path as well as the speed of the coins. The upper part of the box was designed to control the rate of the descending coins and transported the coins to the separation section in single file order to prevent jamming. The lower part of the box consisted of the coin sorting mechanism which conveyed the coins to their assigned compartment according to coin diameters. The box could separate three kinds of Thai coins, 1,5 and 10 baht, with 95-98 % accuracy. The efficiency was in the range 150-250 coins per minute with highest accuracy at 150 coins per minute. The box was made from acrylics. The designed box can separate coins faster than manual sorting although not with as high efficiency as automatic machines which can sort up to 500 coins per minutes. At the present stage, it can not count the number of coins. However, it can be built at cheaper cost, does not require electricity or electronic devices and is suitable for small and medium size business. We aim to improve the box to give higher accuracy with coin counting ability.