常言道「病從口入」想必細菌大部分都是從口裏進去的，細菌需要營養，營養就是指食物，各種食物對細菌不同，可能有的食物對細菌繁殖增加或減少，我們能把它研究出來，減少細菌的繁殖，那可增進人體的健康。

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.

傳聲筒(一般俗稱大聲公)是在生活中常常可以見到的物品，它能使發出的聲音更加宏亮。本研究的目的即想探索、改良大聲公的各種可能性？所以改變了大聲公的長度、口徑大小、材質、形狀及測試不同位置大聲公的聲音效果，也就是想要進行一項大聲公的終極挑戰，現在就請您仔細看看我們的研究喔！

一則電視上〝鋼筋水泥吊橋被風吹垮〞的轉播報導，引發了我們的研究興趣，想要知道為何風作用在橋上，會引起橋面的振動扭轉？ 風吹造成空氣的波動，為了瞭解波的現象，我們先觀察生活中常見的水波、聲波及繩波的振動。於是我們設計了(1)在池塘中丟石子，進而發展出水波槽實驗。(2)以提琴弓在金屬板邊緣拉奏，造成板面上細砂跳動而呈現各種克拉尼圖形。(3)以甩動童軍繩產生繩波，進一步製作鞦韆，觀察其受風力的運動情況。(4)最後，製作模型吊橋，以觀測受風中橋面的變化。 從實驗結果，我們歸納出無論在水面、金屬板面或橋面施力，造成的振動，藉由介質產生波的前進，波碰到阻擋會反射，與原來的波交疊形成不振動的「節點」。包括水波槽中形成的格狀波紋，及金屬板面細砂呈現的克拉尼圖形，都是振動、反射與節點交互作用的結果。至於風吹吊橋實驗中，我們發現頻率與角度是影響橋面振動的關鍵因素。雖然我們的吊橋實驗無法驗證橋的斷裂，但的確觀察到(1)間歇來回的風比持續風容易造成受風橋面的扭曲晃動。(2)45度風向比垂直風向更容易引起橋面的晃動。(3)減少同頻率的振動，可降低橋面斷裂的危險。

BCH (Bnip-2 and Cdc42GAP homology) domains are a novel class of protein-interacting domains. First identified in BNIP2 and in Cdc42GAP, a GTPaseactivating-protein (GAP), canonical BCH domains play important and varied roles in the control of cell morphology and apoptosis induction, amongst others. However, this domain is currently classified under lipid-interacting sec14 domains due to low sequence identity (~20%). Given this intriguing similarity, the relationship between BCH and sec14 domains is worth further study. As BCH/sec14 domains are closely associated with cell signaling and human disease, characterization of these domains and the elucidation of their functional diversity could better aid our understanding of their cellular functions and disease pathogenesis.

本研究用LED取代「電解質實驗」的鎢絲燈，來分辨水溶液為弱電解質或非電解質，發現黃光LED的效果最明顯，而最佳適用條件為溶液濃度低於0.01M，電源電壓在3.0V~4.6V之間；並利用此特性，配合「減量實驗」的設計，可達到減少實驗藥品浪費的目的。 此外還對溶液的導電性加以研究，發現(1) 離子運動快慢情形：H＋＞K＋＞Na＋，OH－＞Cl－＞NO3－；(2) 溶液溫度上升電導度不一定增加，還要考慮電解質的解離情形；(3) 溶液離子濃度越高導電性越佳。 最後利用LED及溶液的電導度特性，來改善國中課本中「酸鹼滴定實驗」及「反應速率實驗」的觀察，以電導度的變化來了解電化學反應的進行，並進一步設計了「運算放大器電路」來呈現變化，以利教學上的實際操作。

我們研究的是一個有段歷史的題目：「柏金斯太太的被單」。其定義為：如何將邊長為正整數的正方形切割成「最少個數」（最小階）的小正方形；而且這些小正方形的邊長也是正整數，相同邊長的小正方形可以重複，但小正方形的邊長的最大公因數需為1。我們歸納出，重複利用「簡單二倍法」及「重疊二倍法」，可以每次加兩階或是加三階的方式增加，反覆構作可以切割邊長120以內的正方形，都不超過19階。

Our aim to attend this science fair is to design an instrument that can plat and measure the mass at the same time. In hope of designing a simple, accurate and convenient apparatus, we created an electronic circuit to display our original idea. In the process of constant improvements, we finally accomplished a “Super Mass Plating Gauge”, which can be easily and widely utilized in school teaching. The production of microbalance and the arrangement of electric circuit are the most significant parts in our research. The major components of the “Super Mass Plating Gauge” include a straw, metal clips and our creativity—the well-arranged electric circuit. The idea of microbalance originated from the Internet, but we advanced it by numerous experiments. First, we attached a steel cord to one side of the cathode in the electricity supplier. Next, we fixed the other side to the negative plate. And then, on the end of the negative plate, we tied a metal clip with the metal that will be plated. Eventually a new “plating gauge” was invented. By doing so, we could use this instrument to make our experiments. Our experimental goal is to research how different kinds of metal, time, electrode and voltage can affect the reduced mass on the cathode. We made use of such metal as copper, zinc and silver to carry out the experiments. In the end, by analyzing the results, we concluded a plating formula that can be applied to metal plating. 我們做此科展的目的，是要設計一個可以邊電鍍、邊測量質量的儀器，我們希望這個儀器是簡便、精確、且線路簡單，並且能推廣到教學的器材。經過我們不斷改良，終於完成了「便利質量電鍍器」 。 其中製作微量天秤和線路的配置方法，是本研究的重要部分。微量天秤的主要結構是吸管、鱷魚夾、及線路。微量天秤的構想，是參考以前的科展作品並加以改良，可精準測量到0.00010g，而裡面的線路，則是我們的創意（如圖一） 。只要把電源供應器的正極，接上左右任一鋼條，負極接到容器另一端，並加上一個鱷魚夾，夾上被鍍物，便是一個可邊電鍍，邊測量質量的儀器了！如此一來，我們就能以此儀器來作我們以下的實驗。 我們實驗目的在探討電鍍時不同金屬、不同時間、電極大小及電壓，對正極金屬片所減少質量的影響。 最後，我們推導出一個有關電鍍時正極金屬片質量變化量的實驗公式。為此，我們也要做許多次、許多種的實驗，來驗證我們的公式是否正確，並以我們所學的理論來推論。

這次實驗的主要原因是出自於發現馬纓丹開花過程中色彩變化的好奇，開始透過持續的拍照記錄觀察，確定我們觀察的紫花馬纓丹（L. inuolucrata L. ）在開花過程中花色由黃色變成橘色、紅色，最後變成紫色。在觀察中，我們發現黃色花有昆蟲在採蜜，所以解剖各種不同品種的馬纓丹花朵，嘗試找出花色與花朵構造間的關係及對於結果率的影響。想要知道花朵改變花色的目的，我們試著模擬昆蟲眼中的世界，因此以近紫外光及近紅外光為光源進行花朵的拍照，並嘗試進行人工授粉。調查結果發現，花與昆蟲之間似乎存在以顏色作為語言溝通的方式，也因此在馬纓丹生存的環境中產生了生物間相互依存的生態關係。

1. Purpose of the research Because we live in a famous winter sport region in Switzerland, we have been confronted with the problematic of avalanches since we were born. In winter 2011/2012 alone, 179 people were involved in an avalanche accident, of whom 25 died. The most important device for searching and rescuing a buried person is the avalanche transceiver. It creates an electromagnetic field, which can be used to locate a buried person with another transceiver. The most important factor while searching is time: After 30 min. the chance of survival of a buried person has dropped to 40%. Considering the fact that people often make mistakes when they are put under such a big stress, valuable time gets lost. This is where our project comes into play. With an automation of the searching process a fast and reliable search should be achieved. The aim we agreed on for this paper is to develop a prototype of a robot that can find an avalanche transceiver automatically and reliably. To study and optimize the functionality of our robot more easily, our tests have only been performed on flat ground. 2. Procedures The components of an avalanche transceiver with only one transmitting antenna are used as a receiver. With the help of this receiver, the signal of a transmitting avalanche transceiver was analysed. Furthermore, the results were used to evaluate the most suitable search technique. Our robot is based on the “RP6” robot system, which is programmable in the C-language. The signal of the receiver is modified in a way which allows the robot to read it. Based on the results of the signal analysis, a search algorithm is developed. In the final tests the robot was examined as to its functionality and efficiency. Therefore, the robot was positioned at randomly chosen starting points to locate the transmitting device. 3. Data The transmitter could be located correctly in every test. The starting points were successfully located up to 11 m from the transmitter. The search ending points were found at a maximum range of 0.5 m from the correct position. 4. Conclusions In view of the results, the aim of developing an automatic localisation of an avalanche transceiver on flat ground as a prototype is seen as fulfilled. Outside the specified range, the transmitter can only be located unreliably. This is due to the fact that outside that range the signal differential in different directions is too small to be processed by the robot. Our prototype was tested under ideal conditions. Certainly, our robot is still some way from being ready for use in an actual avalanche. Many different questions have not been answered yet or have come up during this project, for example: ‘How should the robot should be applied on uneven terrain?’ or: ‘How should it deal with several buried people at once (multiple transmitted signals)?’ Two aspects of our prototype, the low weight and the low construction costs, however, are particularly favourable.