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APEC Youth Scientist Journal [APEC 청소년 과학학술지]

간행물 정보
  • 자료유형
    학술지
  • 발행기관
    국제과학영재학회 [The Society for the International Gifted in Science]
  • pISSN
    2005-5625
  • 간기
    반년간
  • 수록기간
    2009 ~ 2022
  • 주제분류
    자연과학 > 자연과학일반
  • 십진분류
    KDC 405 DDC 505
Vol. 2 (14건)
No
1

LIVING IN A HOTEL WITH A CONTINUOUS AND RENEWABLE SUPPLY OF ENERGY

Toh Tieng Siong

국제과학영재학회 APEC Youth Scientist Journal Vol. 2 2010.04 pp.1-8

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4,000원

The overall experiment that is done here is focused in using the sun’s light to provide lighting for the people in the world as the cost and fossil fuels used to provide the lighting of houses are massive and expensive. Moreover the problems arise from the cutting down of the forest and little reforestation lead to the accumulation of the carbon dioxide in the atmosphere that is a greenhouse gas and can lead to global warming. Therefore there is a great effort that had been made to promote the reforestation of the forest but in my proposed experiment, there is no need to waste the land area for the reforestation of the forest but instead, trees can be planted underground. Since it is also known that the sun’s light can also heat the water if it is directed into the area correctly, my experiment used this simple idea to further decrease the usage of the electricity generated from the burning of the fossil fuels. Solar panels are installed to the surroundings of the building to enable the building to be self efficient in producing the electricity. An example of the proposed experiment that I am going to carry out are to experiment out of the different lenses that must be used to disperse the light and to concentrate the sunlight to a specific area. The equipments used are mirrors, a light source, concave mirrors and a concave and convex lens. The light source is directed to the mirrors that further reflect the light to the concave mirrors that shine the light to a black sheet of paper. It is seen that the light is a little scattered and then try putting a concave lens and determine the focal length at which the ray of light is at its highest intensity and the sire if the ray of light on the black paper. Then repeat the experiment but now using a convex lens. From the experiment we can see that the convex lens can direct the light better than the concave lens that only disperse the light. The intensity of the light can be increased by using more mirrors or using a lighter source. A further experiment can be done on the thickness of the convex lens. A thicker convex lens has a shorter focal length while a thinner convex lens have a longer focal length. Therefore it is clear that a thinner convex lens should be used for taller buildings and a thicker convex lens can be used for shorter buildings. Therefore as the light intensity can be increased, the boilers can absorb some of the heat to produce more warm water.

2

SUSTAINABLE METHANE PRODUCTION FROM WASTE

Natasha Chong Mei Shi

국제과학영재학회 APEC Youth Scientist Journal Vol. 2 2010.04 pp.9-13

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4,000원

This project is about using methane derived from waste to generate electricity. To be able to do this, a few processes have to be done to get the final product; electricity. Instead of just letting methane destroy the ozone layer, I believe that this project that I’m proposing can help put methane gas into good use; as a form of sustainable energy.

3

CONVERTING HARMFUL GASES RELEASED FROM FACTORIES INTO USEFUL SUBSTANCES

Muhammad Hazman Bin Muhammad Iskandar

국제과학영재학회 APEC Youth Scientist Journal Vol. 2 2010.04 pp.14-20

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4,000원

This research focuses on converting harmful gases which are emitted by factories into other types of substances either liquids or gases, depending on how useful it can become. These harmful gases will be treated in a gas condenser factory where they will undergo several processes such as condensation and fractional distillation. A simple experiment can be carried out to show the possibility of this research, using simple materials and methods such as a condenser and a special place to carry out fractional distillation, saving much cost and time. The purpose of the research is to reduce the emission of harmful gases into the atmosphere which can harm the living things and create breathing problems and difficulties. Hence, decreasing the rate of air pollution. From this research as well, the world can be changed by making it a better, more convenience and more comfortable place to live on.

4

SUSTAINABLE GREEN ENERGY & ENVIRONMENT SOLUTION : IN SEARCH OF ECOLOGICAL AND HOLISTIC SUSTAINABLE DEVELOPMENT

Sebastian Suwisar, Dr. Finarya Legoh, Ms. Putu Lia Suryaningsih

국제과학영재학회 APEC Youth Scientist Journal Vol. 2 2010.04 pp.21-35

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4,800원

Environment where we lived, nowadays is more and more damaged. Our sources and energy become decreased. The sustainable development and green energy is needed to prevent nature damaging which have many bad causes to our environment. Based on some theoretical studies, this paper identifies some damages on our environment, the causes of damage, the concept of sustainable development, solution from ecological and holistic point of view, sustainable development appliance in our life, conclusion and also recommendations for the future.

5

PURIFICATION AND CHARACTERIZATION OF RECOMBINANT TOPOISOMERASE I FROM STAPHYLOCOCCUS AUREUS

Namung Kim, Do Hyun Kim, Chang Soo Lee, Chan Bin Jang, Jung Eun Park, Jung Sup Lee

국제과학영재학회 APEC Youth Scientist Journal Vol. 2 2010.04 pp.36-39

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4,000원

6

IDENTIFICATION OF INVISIBLE PROTEIN BY SDS-PAGE

Taegyun Kwon, Jaegyung Lee, Jinhak Kim, Sunjin Moon, Weontae Lee

국제과학영재학회 APEC Youth Scientist Journal Vol. 2 2010.04 pp.40-48

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4,000원

To find out the reason why some protein which has specific sequence was not dyed by CBB that is commonly used as dying solution. This can be identify purification of protein like p53Transactivation Domain (TAD) which is not dyed by CBB and help the research of this proteins. After refinement, we're going to figure out through SDS-PAGE why separated TAD protein can't be dyed itself CBB and look for its solution. After finding out a dyeing principle of CBB, we can figure out the reason for not being dyed through analyzing a sequence of TAD. And we find another dying method that in accordance with TAD sequence. We can find that TAD is finally dyed after trying the method of silver staining. The reason why TAD is not dyed by CBB is there is a few amino acids that bind with CBB. We dyed TAD using silver staining that bind with another amino acids in TAD sequence.

7

UNDERSTANDING THE PROTEIN FOLDING PHENOMENA USING THE SIMPLE LATTICE MODEL OF PROTEIN AND THE BASIC PRINCIPLES OF STATISTIC PHYSICS

Dong-Jin Kim, Dong-Seob Kim, Soo-Beom Jang, Soon-Ho Hwang

국제과학영재학회 APEC Youth Scientist Journal Vol. 2 2010.04 pp.49-59

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4,200원

The protein has become a major subject of research in the field of life sciences. However, it has recently leaped over the boundaries of structure biology and has become the topic of interest in many other fields including that of physics. Because the behavior of protein is affected tremendously by its surroundings, the approach in physics requires various calculations and predictions. In this paper, we have developed a lattice model to ease this problem and tried to analyze the protein thermodynamically using this model together with principles in statistical physics. The lattice model could successfully be applied to understand the major phenomena of protein which included the folding and unfolding process.

8

THE SOUTHERN PLATEAU – A NATURAL OCEAN LABORATORY FOR CLIMATE TRENDS

Tessa Watson, Thomas Craig, Gary Griffith

국제과학영재학회 APEC Youth Scientist Journal Vol. 2 2010.04 pp.60-66

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4,000원

Many studies have investigated the effects of climate change on the atmosphere, but few have looked into how it is affecting the ocean. We chose to study the Campbell Plateau, an area of the southern ocean south-east of New Zealand. We utilised oceanographic data from NASA’s SeaWiFS satellite about this area of ocean, and we processed and graphed this data. We found that the southern ocean is heating up, the mixed layer depth is shallowing, primary productivity is decreasing and the type of phytoplankton in the ocean is changing.

9

TESTING THE EFFICACY AND BIODEGRADABILITY OF PLASTIC SAMPLES MADE FROM POLYSTYRENE DISSOLVED IN D-LIMONENE

Andrea Luz G. Nery, Lea Roselle O. De Castro, Ana Maria A. Chupungco

국제과학영재학회 APEC Youth Scientist Journal Vol. 2 2010.04 pp.67-74

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4,000원

The feasibility of producing plastic samples from Styrofoam products dissolved in d-limonene oil was determined in order to help solve the problem of the increasing demand for plastic bags and the continuous buildup of Styrofoam wastes that pose severe environmental threats. The plastics were made by dissolving the Styrofoam products in d-limonene at a ratio of 0.37 grams of Styrofoam to 2mL of d-limonene (Bautista, 2002). The solutions were then placed into molds, immersed in glycerol and left to air-dry to produce a plastic-like polymer. The product was then flattened and tested for strength, biodegradability and permeability, in comparison with biodegradable plastics from a local bookstore. Three samples of each type of plastic were subjected to such tests with each test having controlled setups. The weight before the plastic ruptures was taken for the strength test while the initial and final weights were taken for the permeability and biodegradability tests. A t-test for correlated samples was used to compare the two types of plastics. The experimental plastic was found to be comparable to commercially available plastic sheets, in terms of permeability and biodegradability but not in strength.

10

THE STUDIES ON THE QUANTITY OF OXALIC ACID FROM LOCAL GARNISH VEGETABLES OF SOUTHERN THAILAND

Naim Laeni, Anat Chenea, Rosalee Romaeyah, Hameedah Musa

국제과학영재학회 APEC Youth Scientist Journal Vol. 2 2010.04 pp.74-86

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4,500원

Eating local vegetables is considered a habit in the life style of the people in the southern part of Thailand for a long time. Vegetables which can be found easily in the local. These vegetables are commonly eating raw or it could be served as garnish along with the food and sauce like spicy sauce or local preserved fish sauce (Boodoo). From the studied, some garnish vegetables contained oxalic acid that would precipitate to calcium oxalate which makes a significant contribution to urinary oxalate, and caused Kidney Stones disease and Gouty Arthritis. There are 5 parts of experiment: The first part is the study on the quantity of Calcium oxalate dregs from the reaction between calcium compounds with oxalic acid. We found that calcium hydroxide solution precipitated calcium oxalate with highest quantity. The second part is the study on quantity of oxalic acid from 33 kinds of garnish vegetables from southern Thailand. According to the experiment, the 6 kinds of vegetables which contain the most quantity of oxalic acid are Parkia javanica Merr. , Archidendron jiringa Nielson , Amaranthus lividus Linn. , Archidendron jiring , Parkia speciosa Hassk.,and Anacardium occidental L. respectively .In the third part is the study on the result of temperatures toward the reduced quantity of oxalic acid from 6 kinds of the ferment garnish vegetables. The result show that the higher temperatures the lower oxalic acid. The forth part and the last part of the experiment is the study on the effect of the Local preserved fish sauce (Boodoo) and Shrimp paste toward the quantity of oxalic acid in the 6 kinds of garnish vegetables above. The reduction of oxalic acid are 0.9938 %w/w, 0.9300 %w/w. respectively.

11

HIGH PRESSSURE SOLAR OVEN

O. Promsod, A. Kongtana, K. Kotmool

국제과학영재학회 APEC Youth Scientist Journal Vol. 2 2010.04 pp.87-93

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4,000원

The solar oven is an invention used for cooking. This is one way to reduce using electric energy by using renewable energy: solar energy. The purpose of this study is to compare the effects of pressure on the efficiency of the solar oven. The oven is made in a 30-centimeterdiameter cylinder shape from 1.25-millimeter-thick iron and covered with heat resistor. The cover is made with 8-millimeter-thick transparent acrylic that has a transmitting efficiency of about 0.80. The ratio of the volume of the oven per area of cover is 13.75. In addition, this oven has a reflector that can adjust the angle for proper sunlight direction to come inside the solar oven. In this experiment, we compared experiments at pressures of 1 and 2 atm by increasing the air inside the solar oven. At 2 atm, the temperatures of air and water had trended to steady state faster than at 1 atm .The heat efficiency of water in higher pressure was greater, while the temperature at 2 atm was more stable than that at 1 atm.

12

REMOVAL OF NICKEL FROM AQUEOUS SOLUTIONS BY CHITOSAN

Suprawee.Aasanasak, Apitai.Kanchanasuwon, Panudda.Manopsin, Suthathip Julcheed

국제과학영재학회 APEC Youth Scientist Journal Vol. 2 2010.04 pp.94-98

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4,000원

This research study was the removal of nickel by Chitosan in Cockel shells. We prepare Chitosan from Cockel shells .And the effect of time and pH were also investigated. We divided our experiment into 3 parts. Part I was the preparation of Chitosan from shells. Part 2 was the study of the effect of pH. The result was the absorption of nickel from Chitosan could work well in base solution and the best pH was 12 making 97.93 %of absorption while the worst was pH8 making 88.08%of absorption. At the last part, it was the study of effect of absorption time. At 10 to 40 minutes. The absorption was constant and it started to increase at 50 minutes making 76% of absorption.

13

4,800원

Zeolite NaP1 was successfully synthesized using coal bottom ash which was separated by difference in floating solution density using sink-float separation technique. Depending on the density of floating solution, dense phases such as quartz or mullite can be effectively separated from amorphous glassy material which consists of mainly amorphous SiO2 and Al2O3. The results suggest that the higher the amorphous glassy material exists within coal bottom ash separated, the higher the crystallinity can be obtained. The cation exchange capacity test shows 1400 meq/kg for as-synthesized NaP1 from coal bottom ash separated under 1.8 S of floating solution density which is 35 times and 3 times higher than of commercial activated carbon and natural zeolite, respectively. Adsorption kinetic study shows very rapid equilibrium on uptake of Pb, Cd and Cr within 300 seconds which would provide highly efficient tool to remove heavy metals from contaminated waste water.

 
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