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熱門關鍵字: the king 水果 豆漿 電腦
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直接乙醇燃料電池之觸媒層研究

直接乙醇燃料電池以酒精與氧氣透過氧化還原反應產生電能,但化學反應緩慢,需利用觸媒以增加其速率。本實驗目的在於盡可能找出一個表現最佳的觸媒。本實驗利用活性碳粉作為觸媒(鉑、錫)的載體,以酸性(HNO3)與鹼性(NaOH)環境分別處理碳粉,再以含浸法與多元醇含浸法將觸媒還原。我們得到以HNO3 處理的碳粉無法保有原碳粉的型態,較利用NaOH 處理為差。在觸媒製備方面,多元醇含浸法還原效果比含浸法可得到較小的觸媒尺寸,在本實驗中,溶液中鉑與加入的碳粉重量比為3:7 時,可得到最大的反應面積。此外,當鉑與錫原子數比為4:1 時,可得到最大的乙醇氧化電流。Direct ethanol fuel cell is a kind of power source which generates electrical power by a redox reaction involving ethanol fuel and oxygen. However, this reaction takes place slowly; therefore, catalyst is needed to improve its activity. The goal of this project is to get an optimize catalysts ratio to obtain the best catalyst activity. Activated carbon is used as the support of catalyst (platinum and tin) particles in this project, which is pre-treated in acid (HNO3) and alkaline (NaOH) solutions respectively. Then, the precursor is reduced by impregnation and EG-impregnation. We learned that activated carbon pre-treated with NaOH activates better than which pre-treated with HNO3 because the latter bear less resemblance than the former. As for the catalyst, the results of EG-impregnation show smaller size of catalyst particles than those of impregnation. In this project, when the ratio of the weight of platinum and activated carbon added into the solution is 3:7, we can get the largest surface area. In addition, when the ratio of the amount of platinum and tin atoms is 4:1, we can get the largest current of ethanol oxidation.

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溫變性轉(孵化條件對宮廷雞性別的影響)

目前生物學知識認為雉科鳥類的性別,在卵受精後即決定(WZ型),不受環境的影響,但是在本組一連串的實驗中發現,雉科鳥類的性別與孵化的溫度變化有非常大的影響,一般宮廷雞的孵化條件在濕度55%RH及溫度98℉~99℉,在此孵化條件下宮廷雞的子代♀:♂=1:1,若溫度降為97℉的孵化條件下所得子代♀性佔93%,倘若溫度升高為100℉的孵化條件下所得子代♂性佔92%,可見在比正常孵化溫度高的環境下宮廷雞的受精卵會轉變為♂性,而比正常孵化溫度低的環境下孵化的宮廷雞受精卵卻會轉變為♀性,本實驗續做了六代,結果大致相似,由此可以證明控制孵化溫度可以改變宮廷雞的性別,這一行為,可能與Z染色體上一個溫度依賴型的連鎖基因(DMRT1)之表現有關。 ;The temperature of hatching can affect Chinese silkys's sex It is now established that the sex of Pheasants is determined when the egg is impregnated, rather than by environmental factors. However, in a series of experiments, we find that the sex of Pheasants is strongly related to the temperature of hatching. In the normal hatching condition (humidity:55% RH ,temperature: 98.5℉), the ratio of female and male offspring of Chinese silkys is 1:1. If the temperature is lowered to 97℉, the female offspring occupies a proportion of 93%. If the temperature is raised to 100℉, the male proportion will reach 92%. We can thus derive the conclusion: the impregnated eggs of Chinese silkys will be transformed to male at a temperature higher than the normal one, while a lower temperature than the normal one will cause the impregnated eggs to be female. The experiments have been conducted through six generations of Chinese silkys, and the results are practically the same. This indicates that temperature changes can affect gender, This may be related to a Z-linked of DMRT1 gene on the DNA, which is temperature-dependent.

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平面上三點集中度判別法之探討

關於平面上若干點的集中度之定義,一直很少有人予以仔細的探討,因為判別的方法有很多種。本研究是以平面上三點所構成的三角形之三頂點作討論,分別以三角形的面積、周長,內心、外心和重心至三頂點距離,三點的標準差及平均差的概念,作為不同的判別方式,並以動態幾何化版GSP模擬不同的判斷方法做為研究,在利用統計學上的方法,找出哪一種定義方式最為適合、誤差最少的判斷方法。There are many ways to determine the centralness of three dots on a plane; however, no definition study has been applied. In this study, we focus our interests on the entralness of three vertices of a triangle formed from three dots on a plane. Various methods such as the relationship of area, and the distance of the triangle to the centralness of three dots, the distance from the interior point, exterior point, the barycenter to the vertices of triangle, and the standard error and differences average obtained from three dots were determined with a dynamic geometry software GSP, and a statistic method was used to find a least error way to determine the centralness of three dots on a plane.

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樂器聲波之探討(The Study of A Sound Wave on Musical Instruments)

演奏樂器時,是使發聲體產生駐波而發出各式各樣悠揚的聲音及音調;樂器主要分成振動體(發聲體)及共鳴器兩部分,依發音方式分為弦樂器(使弦振動產生駐波)、管樂器(利用空氣柱振動產生駐波) 及打擊樂器(利用板、膜或磚等彈性材料的固有頻率振動產生駐波)。聲音有三要素:振幅、頻率及波型,響度取決於振幅大小、音調與頻率有關、波型則由不同的頻率及響度組成。樂音多變的主因是音色及音調。音色是發聲體的發音特性,取決於該發聲體的聲波波型。音調即聲音的高低,與發聲體的振動頻率材質息息相關,頻率愈高,其音調愈高,而樂曲中的音階高低則是由音調高低所構成。樂曲的製作及演奏必涉及到律制,從駐波的產生、律制的探討、頻率的測量和琴鍵的振動模型建立與波形的觀察,我們使用計頻器、示波器及有限元素ANSYS 軟體、數學計算Mathematica 軟體,我們設計一系列實驗,企圖對樂器聲波操作技巧有更進一步的認知。從實地走訪樂器製造廠,了解到設計與改良仍是樂器工藝家重要課題,本文的實驗方法可提供大型演奏會現場調音、樂器調音師或樂器工藝家設計製造樂器時參考用,對於發展文化產業期待提供更經濟與實用的建議。;Playing musical instrument is to make sounding part produce stationary wave so as to give off various gentle sounds and tones. According to different modes of sound producing, musical instruments which comprise vibrator (sounding part) and resonator can be divided into stringed instruments (which vibrate the strings to produce stationary wave), wind instruments (which produce stationary wave with vibration of the air column) and percussion instruments (which produce stationary wave with natural frequency of boards, films or bricks). Three Essentials of sound include amplitude, frequency and waveform, in which the amplitude decides the volume, tones are related to frequency and the waveforms are composed of different frequency and volume. Various musical sounds are mainly due to different timbres and tones. Timbres, sounding characteristics of sounding part, is decided by waveform of the sounding part. Tone means pitch of the sound and is closely related to vibrating frequency of sounding part. Higher frequency makes higher tones and pitch of a musical scale is decided by different tones. Music composing and playing is necessarily connected with music temperament including producing of stationary wave, discussion of temperament, measurement of frequency, establishment of vibrating mode of keys and observation of waveform. We adopted frequency counter, wave inspector, ANSYS software and Mathematica software and designed a series of experiment to get further knowledge of technique of handling musical instrument wave. After visiting musical instrument manufacturers, we learnt that design and improvement are still the essential subjects for instrument craftsmen. Experimental method in his article can provide reference for on-the-spot tuning of large concert, musical instrument tuner and musical instrument designing and manufacturing by craftsmen, and more economic and practical suggestion for cultural industry development.

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波動奇蹟—皂膜與皂水共振模式之研究

本研究探討肥皂膜與肥皂水的共振現象。在肥皂膜共振方面,我們以實驗探討皂膜的共 振模式與頻率的關係;並配合共振理論模型求出薄膜厚度,再與體積密度-厚度測量方法比 較。而又發現皂膜在共振時,皂膜保存時間較平常久,故進行皂膜生命期與頻率、強度的關 係。在進行肥皂膜實驗時,肥皂水滴落在喇叭上,振動出奇特的形狀,進而探討皂水共振的 特性並嘗試建立其數學模式。 ;The research is about the resonance of soap film and soapsuds. For the resonante of soap film, we tried to find out the relation between the resonant pattern and frequency by experiment; according to the resonante model, we measured the thickness of soap film, which was compaired with volume-dencity method. We found that the life-time of the resonant soap film is longer than the normal one, so we proceeded to study the relation between the life-time, frequency, and power. We observed special resonant pattern while the soapsuds fell down on the speaker. So we studied the characteristics of resonant soapsuds, trying to make the mathematical pattern of resonant soapsuds.

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Poly(ADP-ribose)polymerase-1 對細胞內DNA damage修補的調控

Poly(ADP-ribose) polymerase-1 (PARP-1)是一個細胞核內的酵素,它可以被因DNA damage\r 而形成的DNA片段活化,並將NAD(+)上的ADP-ribose轉載到結合蛋白質。這些結合蛋白質對\r 於DNA的合成、DNA的修補、以及細胞週期的調控都有關係。因此,PARP-1被認為是維持基\r 因完整性的重要角色。根據初步的研究,抑制PARP-1的活性對許多疾病的治療都可能有效,\r 其中包括癌症、心臟病、中風、糖尿病、發炎以及反轉錄病毒的感染。然而,以藥物抑制一\r 個對DNA修補這麼重要的酵素會有什麼潛在的問題呢?為了要得到解答,我們需要進一步了\r 解PARP-1在DNA damage反應的機能。在這一份報告中,我製造了一個失去活性的PARP-1突變\r 種,即E988K。經過對E988K詳細的研究,我將比較及分析PARP-1野生型與E988K之間不一樣\r 的互動蛋白質,希望能對PARP-1所控制的DNA修補有更進一步的了解。\r \r \r Poly(ADP-ribose) polymerase-1 (PARP-1) is a nuclear enzyme activated by DNA strand breaks\r during DNA damage response and catalyzes the transfer of ADP-ribose units from the substrate NAD(+)\r to acceptor proteins. These acceptor proteins involve in modulation of chromatin structure, DNA\r synthesis, DNA repair, transcription, and cell cycle control. Thus, PARP-1 is believed to play an\r important role in maintaining genome integrity through modulation of protein-protein and protein-DNA\r interactions. PARP-1 has been the target for design of inhibitors for over twenty-five years. Inhibitors of\r the activity of PARP-1 have been claimed to have applications in the treatment of many disease states,\r including cancer, cardiac infarct, stroke, diabetes, inflammation and retroviral infection. However, are\r there potential problems associated with inhibition of this DNA-repair enzyme? To answer this question,\r we need to further understand the biological function of PARP-1 during DNA damage response. In this\r report, an enzyme dead mutant (E988K) of PARP-1 was generated. Detailed studies of E988K show that\r E988K could be used in the following studies. Compare and identify the different associated proteins of\r PARP-1 wild-type and E988K will shed light into the molecular mechanism of PARP-1-mediated DNA\r repair.

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豆類澱粉?抑制劑之研究與應用

豆類澱粉?抑制劑具害蟲防治與血糖調節之功效。本研究從台灣五種豆類中進行澱粉?抑制劑活性初篩,篩選出四季豆對麗蠅的澱粉?有明顯的抑制效果,粗萃後分離純化出單一蛋白質,經胺基酸定序結果得到兩個多?片段-VGLDFVLV 與TETSFNIDG , 與已發表文獻比對推測為腰豆澱粉?抑制劑—αAI-1。經測試發現此抑制劑在85℃時仍具備抑制果蠅澱粉?之活性,為一熱安定性蛋白質,其抑制作用受pH 值影響很大,在偏酸性環境下的效果最好,且其抑制作用具特異性,可明顯抑制果蠅、入侵紅火蟻、白蟻、蟑螂及麵包蟲等昆蟲的澱粉?活性。在調節血糖方面,本研究利用豬胰臟澱粉?進行抑制活性測試,篩選出四季豆、花豆與黑豆對豬胰臟澱粉?有明顯的抑制效果,進一步利用Wistar 品系大鼠,進行豆類澱粉?抑制劑降血糖功效之活體試驗,將四季豆、花豆和黑豆粗萃經濃縮乾燥後餵食大鼠,發現花豆、黑豆在第一小時具有顯著抑制血糖增加效果;四季豆、黑豆在第三小時血糖回升,花豆仍可維持較低血糖濃度。此初步結果顯示,花豆粗萃物可能具備減緩消化吸收作用,具應用潛能,其確切分子作用機制值得深入探究。Amylase inhibitors can be applied in pest control and glucose adjustments. The study screens Phaseolus vulgaris from five Taiwan’s beans that has the most significant inhibition towards Chrysomia megacephala. The protein was isolated and sequenced two fragments, -VGLDFVLV and TETSFNIDG, highly homologous to that of αAI-1 from Phaseolus vulgaris. The pure protein still inhibits the amylase from Drosophila melanogaster at 85℃, suggesting it is thermal-stable. Its activity was specific and was affected by pH, reaching the peak in weak acidic condition. It obviously inhibits amylases from D. melanogaster, Solenopsis invicta, Odontotermes formosanus, Periplaneta Americana Linnaeus, and Alphitobius sp. In addiction, the study points out Phaseolus vulgaris, Phaseolus coccineus L. and Glycine max, which have significant inhibition toward pancreatic amylase. The amylase inhibitors’ functions of decreasing in blood glucose were detected by animal experiments on Wistar rats. The rats fed with the extracts of Phaseolus coccineus L. and Glycine max showed the inhibition of glucose increasing at the first hour, while blood glucose concentration after rats fed with Phaseolus vulgaris and Glycine max increase at the third hour, and blood glucose after rats fed with Phaseolus coccineus L. maintains low. Its premier result indicates that the extract from Phaseolus coccineus L. might postpones digestion and has potential to be applied. According to these results, amylase inhibitors are worthy to further analysis.

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敬"屑"不敏 --- 皮屑芽孢菌生長之探討

由於本身有頭皮屑的煩惱,在使用各種洗髮精之後,一方面覺得大部分的洗髮精效果不是很好,另一方面也擔心抗屑洗髮精的成分對人體有害。所以有了研究頭皮屑的念頭,希望能找出減少頭皮屑的方法。\r 在與幾位皮膚科專門醫師討論後,醫師們都不建議在直接人體上進行減少頭皮屑的實驗。於是我們將研究的重點放在〝皮屑芽孢菌生長之探討〞,希望對皮屑芽孢菌有更深入的瞭解。除了洗髮精之外,我們也將研究各種廣為流傳的民間偏方是否能有效抑制皮屑芽孢菌生長。在這些民間偏方的蒐集可兩大類:一類是在日常生活中可以很容易取得的物質,如鹽、醋、大蒜、生薑、洋蔥等;另一類則是台灣特有的物質,如無患子、茶籽粉、竹醋液等。\r 我們希望透過研究方法能瞭解\r (一) 溫度、濕度、酸鹼度、油脂對皮屑芽孢菌生長的影響\r (二) 哪些物質可以抑制皮屑芽孢菌的生長\r (三) 不同稀釋濃度的物質抑制皮屑芽孢菌的生長的效果\r 為了避免繁複的數量計算(如菌數計算),我們採用較多的對照比較(如抑制圈大小)。同時,我們設計了一個簡易的觀察與測量方法(稀釋法與抑菌指數),來比較各種民間偏方\r 的抑菌效果。\r 研究與實驗分為四大項進行:\r (一) 基本生長環境之探討:溫度、濕度、酸鹼度、油脂對皮屑芽孢菌生長的影響\r (二) 民間偏方抑制效果之探討:鹽、醋、大蒜、生薑、洋蔥是否能抑制抑制皮屑芽孢菌的生長\r (三) 民間偏方抑制效果之比較(抑制圈):比較各種物質的抑制圈大小\r (四) 民間偏方抑制效果之比較(稀釋法):利用抑菌指數來比較各種物質的抑菌能力\r 經過研究,我們所蒐集到的民間偏方都有某種程度的抑菌效果,大致可以分為強效(蒜液、竹醋液、茶樹精油)、有效(食鹽水、食用醋、洋蔥液、檜木芬多精、茶籽粉)及普通(薑汁、無患子)三種效果。\r \r Since I have the serious dandruff problem, I try to seek, except the shampoo, the natural materials to decrease the dandruff. After consulting with some dermatologists, they suggest I can focus my research on the “Malassezia Furfur”, which is the major bacteria causing the dandruff.\r This project is designed for finding the materials which have the most powerful inhibition capability for the “Malassezia Furfur”. I collect some folk prescriptions from the internet that salt, vinegar, garlic and onion can decrease the dandruff. The problem is “Do they have good inhibition capability for the Malassezia Furfur too?”\r The goals of the research are as followed.\r (1) The exploration of the basic environmental factors for the growth of Malassezia Furfur, such as temperature, humidity, acidity & alkalinity.\r (2) What kinds of material have the good inhibition capability?\r (3) The comparison of inhibition capability of the different material with different consistency.\r We especially design a method called “Dilution metering and index” to compare the inhibition capability of the different material. By using very simple observation, this method will transfer the simple “Qualitative Analysis” to the result of complicated “Quantitative Analysis”. The “Dilution metering and index” is the major achievement of this project, and it is also the good way for the projects which are not equipped with the precision instrument for bacteria inhibition capability measurement.

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倒車攝影機影像之變形校正

與傳統的鏡頭比較起來,廣角鏡頭可取得較大範圍的影像,所以廣泛地運用在很多地方,例如倒車攝影機、內視鏡、防盜警眼等,但是其影像會有很大的變形失真,容易造成人類眼睛的錯覺與誤判。本篇研究以倒車攝影機為例,使用了多項式函數來校正其影像的變形與失真,從程式實作的校正結果看來,我們的方法之效果還不錯,相信同樣的模式可用來校正其他使用廣角鏡頭的儀器設備之變形影像。 Compared with the traditional lens, wide-angle lens can make images of larger range, so they are widely used in a lot of places, such as move backward cine-cameras, laparoscopes, and burglarproof eyes. The drawback is that the images distort a lot and may cause the illusion to human eyes and lead to erroneous judgments. This reserch takes the backward cine-camera as example and utilizes multinomial function to correct the deformation and distortion of the image. The results show that the method we use are quite effective and the model can be applied to other equipment with wide-angle lens.

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聚苯胺導電高分子在鐵系金屬防蝕上的應用與研究

聚苯胺導電高分子的發展蓬勃迅速,其應用也愈趨廣泛,金屬防蝕為其可能應用之一。台灣四面環海,工業發達,造成金屬腐蝕損害嚴重。本文為探討聚苯胺導電高分子在鐵系金屬防蝕上之應用,針對以下各點進行研究: ( 1)探討導電高分子聚苯胺性質與合成方法(2)探討聚苯胺導電原理(3)測試不同腐蝕條件下聚苯胺的防蝕效果(4)探討聚苯胺防蝕原理(5)各種氧化還原態聚苯胺防蝕效果之比較。實驗結果顯示塗布聚苯胺與未塗布聚苯胺之鐵系金屬(生鐵、不鏽鋼、鍍鋅鐵)在 3 %氯化鈉、 0 . 5M 鹽酸、1M 鹽酸溶液中之腐蝕狀況,以鹼式中問氧化態聚苯胺( Emeraldine base 。)最具防蝕效果。聚苯胺防蝕機構包含阻隔防護、腐蝕抑制劑、陽極保護、惰性化、形成保護性氧化物薄膜、阻礙離子擴散速率、電化學介面遷移等機構 ·The development and application of the conducting polymer polyaniline is getting prosperous and popular. One of the applications is corrosion protection. Because Taiwan is surrounded by sea and the pollution of industry is more and more serious than before the damage of corrosion is greater and should be properly controlled. In this paper, the authors attempted to study the effect of the corrosion protection of polyaniline in ferrous metal. This study could be divided into four parts: (1) the study of the property and synthesis methods for the conducting polymer polyaniline, (2) the conduction theory of the polymer polyaniline, (3) The corrosion protection effects of the polymer polyaniline under different corrosion situations, (4) the corrosion protection theory of the polymer polyaniline, and (5) the comparison of the corrosion protection effects of various polymer polyanilines. According to the experimental results the Erneraldine-based polyaniline gets the best corrosion protection effect. The mechanism of corrosion protection may be the result of the following ones: barrier protection, corrosion inhibitor, anode protection, innobeling, chemical active layer. inhibition of diffusion rate, and the shift of electrochemical interface.

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誰能比我更善變???~ 釩鎵磷酸鹽的合成及其結構鑑定

This research tries to find out how changes of weight or proportion of a reactor would affect the type and structure of a crystal. In the experiment, the Hydrothermal reaction was adopted to conduct the syntheses of Vanadium-substituted Gallium Phosphates and try to pick up the single crystal to collect data with SXRD for further illustrating the crystal structure with diamond software to know well its nature. The research result finds out a new type of crystal unseen in the existing literature produced because of the weight changes of C3H10N2, therefore the weight change of a reactor may affect the structure of crystal significantly. In the future, it is expectation that comparison among structures of other Vanadium-Substituted Gallium Phosphates can be made, and the properties of this compound can be measured, and try to find out a brand new type of structure for new exploration by changing the initial reagent. 本研究係透過改變化合物所添加之反應物的比例,以了解反應物比例的改變對晶體的型態與結構的影響。實驗採用中溫水熱反應來從事金屬釩鎵磷酸鹽的合成。並挑取單晶,以X-ray 繞射儀進行數據收集,再以diamond 軟體繪出晶體的結構圖,且進一步得知其性質。研究結果發現,經改變丙二胺的量後,產生不同於文獻上的新化合物,可知改變所加反應物的比例,對於晶體結構有相當大的影響。未來可朝向與其他的釩鎵磷酸鹽做結構上的比較、對此化合物做更進一步的性質測量、改變起始試劑測試,進而得到更新穎的結構形式等部分進行探究。

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網路監控與家庭自動化系統之研究

The paper presents a new technique for the Internet monition and control system. The user not only can “watch” the current operation of remote home appliances from the client computer, but also directly control the behavior of remote home appliances through the Internet network. In the mean while, concerning the interface between users and appliances, the virtual reality is combined into the system so that users operate the system easily. First, virtual reality, CGI , HEML . I/O control code, 8255 I/O card and CCD are applied in the server computer to control and “watch” home appliances. Next, the client computer is connected to the sever computer through the Internet WWW(World Wide Web) network. Then, the user can control remote home appliances directly through the homepage. Finally, the experiment results are presented and discussed.本研究提出一種高效率且易維護的網路監控技術,從遠端確實“看”到監控系統現場動作,並下達控制指令。同時顧慮到使用者操作介面,結合虛擬實境,讓使用者可更輕鬆操作。首先,伺服端結合VR(虛擬實境)、CGI技術、基本的HTML、I/O控制指令、8255 I/O介面卡及CCD(網路攝影機),應用於家用電氣,接著用戶端透過WWW全球資訊網連上伺服端首頁,然後依首頁之畫面,來達到遠端監控與家庭自動化之目的。

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