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風力發電的發展是我國即定的能源政策,但目前所建置的百餘座風力發電機,似乎成效不佳,也未達預期目標,最近國內媒體陸續報導風力發電的負面消息,更有專家提出應放慢腳步,適合國內環境使用的風力發電機尚待研究開發。我們研究改良較不受重視,一般認為效率不佳的阻力型垂直軸風車,我們希望倍增它的輸出動力,更重要的是它將更適合台灣的風場條件。
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日光燈是我們最常用的照明設備。傳統的日光燈是屬於電感性的負載,接上電源後其電壓與電流的波形會產生異相位的問題,造成無效功率。本研究是以簡單而且經濟的方法在日光燈的兩端並聯電容器以改善其電流落後電壓的情形,減少無效功率,降低電力的消耗。研究中測量日光燈的等效阻抗,並加以相應的補償電容,從電路實驗中觀察,得到功率修正的結果。Fluorescent lamps shine our lives everywhere. However, traditional fluorescent lamps are inductive loads and produce a phase angle between voltage and current when connected to an alternating power supply, which leads to considerable electricity losses. This project uses parallel capacitors with the fluorescent lamp to compensate the phase difference between current and voltage, and thus reduces power consumption. In the study the impedance of a CFL (Compact Fluorescent Lamp) bulb has been measured and compensated with corresponding capacitance. Finally, the power consumption reduction is verified with experimental results.
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排印OnLine-PHP 在文字圖形的應用
從小習染之餘,對篆刻藝術的濃厚興趣及對電腦程式之熱愛,萌生將篆刻藝術與電腦 科技結合,於是應用PHP(Professional Home Page)的文字圖形(Text Image)處理功能 將中華文化之篆刻藝術透過網際網路推廣到世界各角落。本研究規劃建置了一個 FreeBSD Server 可完善處理PHP 功能的作業平台、應用PHP 的文字圖形處理功能,編 寫可在線上DIY 設計印章的程式,以及藉由Java Script 的技術在Client 端建立一個人 性化且相容性高之使用者界面網頁,達到提供多語系、多功能、依使用者偏好作調整 印章及輸出分享的功能。為使非漢語系國家能深刻體驗中華篆刻藝術,本研究同時建 立一個超過三萬筆之由英文名音譯中文名的資料庫,提供給使用者切身的服務。 Inspired by the interest of the art of seal engraving and the love for the computer programming beginning from my childhood, I combine the art of seal engraving and computer technology, and apply the Text-Image's function of PHP to promote the seal-engraving art of Chinese culture via the Internet to everywhere around the world. This project constructs a FreeBSD Server to process PHP platform perfectly, applies the Text-Image's function of PHP to write a program for online DIY pattern design, and uses Java Script to establish a human and compatible user-interface web page for clients to provide multi-language, multi-function, and being able to adjust pattern according to the user's preference and output sharing functions. This project also sets up a database of English-Chinese translation of over thirty thousand English terms to help people who are not Chinese to experience the art of seal engraving.
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在學習電磁學時,書上有學到磁場的計算,但卻沒有相關實驗,便想自行設計實驗來求得地磁,而在實驗過程中發現,測地磁時可以同時求得磁鐵塊的磁矩和磁極強度,並可進一步驗證兩磁極間的磁力是否符合庫倫定律。
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抗生素是由細菌、黴菌或其他微生物在生活過程中所產生具有抗病原體或其他活性的一類物質,功效是殺菌。主要是從微生物的培養液中提取的或者用合成、半合成方法製造。抗生素作用,是抑制細菌中蛋白質與核酸的合成,干擾新陳代謝與繁殖,已達消滅細菌功效。但是因為病毒沒有新陳代謝的路徑,所以抗生素對病毒一點用都沒有。寄生蟲的細胞結構與細菌也有很大的不同,因此抗生素可以抑制細菌的生長或殺死細菌,但卻不會對病毒或寄生蟲造成很大的作用。
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色粒分明~探討本氏液與還原醣變色反應
本實驗以市售本氏液與自製本氏液與葡萄糖、果糖、麥芽糖等還原醣反應,證明課本上以藍、綠、黃、橙、紅的顏色變化來顯示葡萄糖的含量多寡有誤。透過過濾觀察產物顆粒、濾液混色實驗、利用廷得耳效應以雷色光照射觀察產物顆粒大小、及溶液靜置、離心等實驗,發現藍、綠、黃、橙、紅顏色變化可能是奈米級(顆粒大小介於10-9~10-7 m)的紅色氧化亞銅,與藍色硫酸銅溶液混色結果,故不能以顏色變化來代表還原醣的多寡。若要定量葡萄糖,可由葡萄糖與本氏液反應的「顏色與反應時間關係對應圖」中,反應終點顏色(紅色)到達時間來定量葡萄糖。
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The starting point of this experiment is to study the structure of soap-film. By changing the height of the triangular prisms, cuboids and pentagonal prisms, I observed the patterns set by the soap within the frameworks. It is surprised that when the proportion of prism is in a specific range, the phase in the middle of the structure will overturn 90 degree and then transmitted into another kind of balance pattern. I named this process “phase transition”. According to the experiment ,we can conclude the change of film patterns within variable prisms are all applied to this regular cycle::
We know the soap films are forever attempting to minimize their energy. It stands to reason that surface tension tend to set up the film in its minimal surface. From the point of Mathematic, each structure should have only one single balance pattern, which is set up on the base of Fermat point and this pattern should stand to the minimize of it’s energy. However, we discovered that in some specific cases, one structure can allowed two kinds of balance films-patterns to exist. In these cases, any small vibration can cause the happening of “phase transition”. To sum up, I presume some structures have two different types of balance film-patterns: one of which stands to the local minimum (in this condition the pattern’s surface area isn’t the smallest); the other stands to the absolute minimum (in this condition the pattern’s surface area is the smallest).
There is an energy valley separate local minimum from absolute minimum. The second pattern (local minimum) will appear when the structure is blocked from attaining its absolute minimum, but surface intention is not powerful enough to support the film jumping over the energy valley. In this condition, if we works on the structure (such as blowing), which would provide the film of energy to cross the valley, and then phase transition take place. Vice versa, we can also force the film to jump from absolute minimum to local minimum and phase transition will occur as well. In a word, phase transition can happen in each two way, which connects the two types of balance pattern.
This report lays stress to find out the condition of phase transition. We also analyze the structure of soap-film by its included angles and surface area in hope to go deep into the science of soap-film.
我們實驗的出發點在於研究泡膜的立體結構。藉由改變正立方柱的高,觀察其平衡薄膜形式,意外的發現當正立方柱的邊長比在某個範圍時,泡膜結構中央會瞬間90 度翻轉,形成另一種平衡型式,我們將這個過程命名為面轉變(Phase Transition)。為了進一步了解面轉變發生的相關因素,我們設計了一連串的實驗,針對正三角柱、正四角柱、正五角柱、正六角柱發生面轉變的時機和條件分析討論。此外,我們還分析了泡膜結構中膜與膜夾角的特性、最小表面積和表面能之間的相關性,對於泡膜的立體結構做了一系列深入的探討。
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我一直在想,為什麼植物的美麗不能永恆呢?美麗的花朵,伴隨答淡雅的香氣,往往能美化環境,更能淨化人心,自小生長在鄉間的我,更能感受到這份來自花草的神奇力量,因此深深愛上這花草世界.但為何花朵的美麗總是短暫,為了想讓植物開花的時間長久,於是,我著手進行在自然科技雜誌及網路上搜尋相關的資料及訊息,但是找到的大多都是使生長速率變快的報告,卻找不到使生長速率變慢的報告。終於,曾經有人運用圓周運動的原理,而成功的使動物的生長速率變慢,於是,我針對直線運動及圓周運動分別依速度快及速度慢來分成四組,以及一組靜止狀態的綠豆,將五組實驗後的數據相互作比較,結果發現,除了陽光、水、空氣、土壤、養分及本身具有的胚胎外,在不同的運動狀態下也會影響到植物的生長速率 ·I was thinking about the reason why the beauty of plants couldn’t last forever. The beauty of flowers that accompanied with sweet-smelling could beautify the landscapes and purify our heart. I felt strongly about the magic power of the plant because I lived in the country in my childhood. Therefore, I loved plants deeply. Why was the beauty of flowers transient? As a result. I started to search for the related data and information on science and technology magazines and Internet. Most of the reports increase the growth rate of plants, but I cou1dn find the reports about slowing down the growth rate.At last, someone had successfully used the principle of circumference movement to slow down the growth rate of animals. Therefore, I focused on linear and circumference movement and divided them into four groups and one group of green beans with still state. I compared the data of five groups, and found that different movement affected the growth rate of plants m addition to sun, water, air, soil, and embryo.
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Synthesis, Characterisation, and Temperature-sensitivity of Hydroxyl-Terminated Poly(N-isopropylamid
Background:\r Delivery of anticancer drugs in vivo can be achieved by using targetspecific\r drug carriers of various types – e.g. microspheres and liposomes –\r which can be applied intravenously, or subcutaneously via a hypodermal\r patch, etc. as appropriate to the type of drug carrier employed. Recently,\r interest has surged in the usage of amphiphilic polymeric micelles for this\r purpose, as they prove superior to other drug carriers in many ways. They\r have highly-hydrated hydrophilic shells, and hydrophobic cores wherein\r hydrophobic anticancer drugs such as adriamycin can be encapsulated\r during transport in the blood. Their main advantages include their\r smallness of size – enabling them to elude capture by the\r reticuloendothelial system (RES) – their stability in the bloodstream as\r shown in their low critical micelle concentration (CMC) values, their\r passive targeting of tumour sites via the enhanced permeability and\r retention (EPR) effect, and their ability to integrate an active targeting\r mechanism, e.g. antibody-antigen recognition, pH-sensitivity, etc.
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In this paper, we use telephone network to remote-control household appliances and monitor security system through the implementation of software and hardware. The purpose of developing this system is to build up a system that makes everyone take advantage of the telephones through pay phone network everywhere as and when he needs to set up the household appliances, meanwhile two-ways system of monitoring household security. In addition, due to the advances of communication technology and the remarkable boom of those products, the popularity of cell phones for local people is developing tremendously. We can link the portable cell phones up to the household appliances and monitoring household security through the offer network of communication companies. This system adopts public telephone network via multiple frequency to receive KT31 70 IC which is connected to EM78P45 i p Chip. And then the Chip is connected to the driving external circuit in order to control electric appliances, sensors on doors and windows. The utilization of LEPROM (93C66) memory to set up telephone and mobile phones number equips the telephone network with two-ways system of remote-controlling electric appliances and monitoring household security. In the part of controlling electric appliances, a monitor is used to display the status of electric appliances, to control the appliance switches and to set up the timer. In the part of monitoring household security, we use the system to receive the instant images of the house and to report on the closing or opening of doors and windows. The system will be informed on any occurrence of abnormalities. The memory of the system can record and update new data at any time and is able to set up twenty sets of telephone and mobile phone numbers. Besides, the system adopts identification codes to avoid malfunctioning and thus upgrade system reliability.本文旨在應用電話網路作遠端遙控家用電器及防盜保全歟控系統軟硬體之規劃與設計 。本系統研製的目的,是希望建立一套系統,讓每個人不管身置何處,都能利用電話透過公眾電話網路,輕易地控制家中的電器設備及進行環境設定,以達到控制家電及防盜保全之雙向監控系統。此外,由於通訊的進步與通訊產品的熱賣,使國月雍有手機的普遍性相當高,若能透過隨身攜帶的手機,經由通訊業者所提供的網路通訊管道,連結到家庭自動化與防盜保全系統亦可達到進行遠端遙控的目的,彌補出門在外無法使用室內電話的空檔。本系統利用公眾電話網路經複頻接收 IC ( KT3 170 )連接至單晶片( EM78P45 IP ) ,透過單晶片驅動外部電路與家中電器及門窗的監視感測器連接,再利用 EEPROM ( 93C66 )記憶體設定電話及手機號碼,藉由電話網路傳輸,以達到控制家電及防盜保全之雙向監控系統。在家電控制部份,採用顯示器可隨時瞭解家電使用狀況及控制其開啟或關閉,且可設定使用時問。在防盜保全部份,可隨時監控家中門窗,若有異狀可即時通告。記憶體可隨時記錄或更新資料,並可設定二十組電話及手機號碼。此外,本系統採用確認碼設定,可防止產生誤動作,系統可靠性高。
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以圓錐套和熱電半導體來改善傳統電風扇效能的研究
電風扇在炙熱的夏日中為冷器以外不可或缺的生活用品。一個典型的電風扇是由架在可調高度鐵柱上的馬達及風扇構成。現行傳統電風扇有幾個缺點,一、馬達風扇(即重心)位置高,有易傾覆的缺點。二、風力分散,風速不高。三、吹出不可調室溫溫度的風。四、外觀呆板,傳統無奇。五、多噪音等。本研究根據這幾點傳統電風扇缺點,試著設計新的電風扇。首先將柱子移除使重心降至接近地面處。接著根據連續方程式(continuity equationρ1A1V1 =ρ2A2V2)製作圓錐狀「號角」裝置套於電風扇上以集中風力並減少噪音。最後企圖使用熱電半導體的致冷器降低輸出風的溫度。研究結果發現號角裝置有效達到預期的集中風力增加範圍目的。不幸發現以熱電半導體降溫的方式效率低且耗損過多能量所以可行性較低。雖然沒有降溫功能,本電風扇仍較傳統電風扇多出許多好處,例如加強的安全性、集中的風和強大擴充性。號角裝置可包含空氣清淨甚至音箱功能充當喇叭。Electric fans are a necessity during summer, especially in a hot and humid place such as Taiwan. A typical electric fan is primarily composed of an electric motor with fans mounted on a strut with user adjustable elevations. This setup presents several problems, including (a) the danger of an accidental tip-over due to the fan's elevated weight center (the heavy motor), (b) high wind dispersal rates, (c) room temperature winds, (d) excessive noise and (e) old, antiquated exterior appearance. This particular study attempts to alleviate all these problems. First the weight center is lowered to ground level by removing the entire strut and placing the motor close to the floor. Next by using calculations from the continuity equation(continuity equationρ1A1V1 =ρ2A2V2)a cone shaped “horn” device is placed over the fan in order to concentrate the wind, effectively increasing its speed while decreasing the audible noise level. Finally, an attempt was made to lower the temperature of the air in the interior of the horn by the placement of a thermoelectric semi-conductor cooling device. Our results were that the horn device worked, significantly lowered the wind dispersal rate and achieved an important objective. However, the thermoelectric cooling solution proved to be highly inefficient unless accompanied by precise wind speeds. Even without the cooling function, this new electric fan still has many distinct advantages over traditional fans such as improved safety, concentrated winds and high expandability. For instance, filters can be integrated to purify air, even an audio speaker can be made into the form of this fan.
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The Usage of Bananan Stem in The Production of Baby's Diapers
In this project, the stem of the banana tree is innovated into the absorbent substance in the baby’s diapers. A water proof material too has been innovated . In the study carried out, several changes has been identified in the production of an environment friendly disposable diapers.The structure of water molecules and cellulose as well as charges in both materials will enable cellulose present in all green plants to absorb water easily and effectively. Cellulose is also insoluble in water or solvent. This project uses the banana stem due to its high cellulose content and furthermore the cellulose present has a very fine structure which will increase its absorbency rate. Baby’s urine will be absorb into the absorbent material through capillary actions due to surface tension that develops between the cellulose and baby’s urine. The absorbent substance in baby’s diapers available today in the market is made up of Polyacrilate (SAP) and cellulose which are extracted from hardwoods, particularly pine trees. The production of the absorbent substance from the cellulose will help to reduce the logging of hardwoods.
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