太陽能發電環境評估與追蹤器探討
本研究首先探討台灣各地的日照時數與世界重要都市的比較,發現台灣南部日照時數皆超過2000 小時,適合發展太陽能。接著,?了增加陽光的能量密度而加設弗瑞奈透鏡,雖然能順利的使照度放大三百餘倍,但歲日照角度的影響甚鉅,?了克服角度的問題,我們決定開發自製的追蹤器來改善角度的問題。太陽能板需要改變仰角跟傾角(雙軸調整),由光感應器判斷及自動控制程式,判斷隨時辰與季節變化的太陽角度。當搭配奈米塗料、弗瑞奈透鏡與追蹤器,總輸出功率可增加約50%。太陽電池表面玻璃會阻擋藍紫光的吸收,但本研究在太陽能板上塗佈奈米塗料,發現能增加短波長的吸收;經實驗後奈米等級表面具有自潔效應,可防止灰塵雨滴的堆積影響光線吸收,具有開發價值。This project first compares Taiwanese locations with other places in the world on average daylight times. It was discovered that southern Taiwan has the longest average daylight time all over 2000 hour sand therefore most ripe for solar power development. To increase the energy density of solar Fresnel lenses were incorporated. Although this has the advantage of magnifying illumination by three hundred percent, the alignment angle for the solar panel will have a significant impact on performance. We then designed and built a automated tracking device with illumination sensors to control the elevation and inclination of the solar panel which adjusts the angle according to environmental conditions such as time of day and season. When solar cell collocate Nano coating, Fresnel lens, tracking device, its power can promote almost150%. The glasses on the solar cell will interfere solar cell absorbing blue and purple light, but we lay on a Nano coating and we find Nano coating can improve solar cell to absorb short wave; and surface o Nano have lotus effect, it can prevent dust and rain effecting solar cell absorb lights, and it is worth developing .
奈米科技材料新發現-氮化鉻
利用陰極電弧蒸鍍各種薄膜,如:類鑽膜(DLC)、氮化鈦膜(TiN)、氮化鉻膜(CrN)、氮化鋁鈦膜(TiAlN)以及先披覆上一層氮化鋁鈦膜(TiAlN)再加上類鑽膜(DLC)的合成膜等。這些薄膜現在已經被廣泛的應用於各種刀具、模具的表面處理之中。本研究主要在探討高速鋼鍍上氮化鉻膜(CrN)之後,對於硬度、磨耗性質的改變,以及觀察氮化鉻膜(CrN)表面結構之組織。 在研究中我們運用陰極電弧蒸鍍系統蒸鍍氮化鉻薄膜,分析上運用SEM來觀察薄膜表面結構組織,以及運用洛氏微硬度機來觀察試片的硬度,另外還有使用磨耗試驗機來進行磨耗測試。以上這些測試總括來說都是在得知性質有無實際上的改變,而這些實際上的改變對於蒸鍍之後的模具或刀具都能夠大幅的提高使用的壽命。 We evaporated different kinds of thin films by using the anode of the electronic arc, such as DLC (Diamond-Like Carbon), TiN (Titanium Nitride), CrN (Chromium Nitride), TiAlN (Titanium Aluminum Nitride), and synthetic films of covering TiAlN and DLC. These thin films have been used widely in processing the surface of a variety of cutters and moulds. The purposes of this research were to investigate changes of hardness and abrasion and to observe the organization of the surface structure of CrN after High-speed steel evaporates CrN. In this study, we use the system of the anode of electronic arc to evaporate CrN. Besides, SEM is used to observe the organization of the surface structure of the thin films and Rockwell Micro-hardness Test Machine is used to investigate hardness of testing samples. Moreover, we use Abrasion Tester to test abrasion. These tests are taken to lead to a better understanding whether the quality really changed. These changes of evaporated moulds or cutters would extend their frequency of using.
緩步門的木乃伊-會蟄伏的熊蟲
The study is to investigate Taiwanese tardigrades,and the research of that is few. Tardigrades are commonly called water bears and have been identified more than 750 species. Limno-terrestrial tardigrades are small, 0.2-0.5 mm in length, and mostly found in moss cushions growing on rocks, soil, or the wall of houses. When the environment dehydrates in dry weather, Tardigrades desiccate into a reversible state of metabolic suspension called cryptobiosis. We have been finding a number of tardigrades in moss at many places in Taoyuan country. First, we put the moss on the dissected microscope to seek for tardigrades, and then placed it on the microscope for photographing and observing. The study is mainly focus on Taiwanese tardigrades. we have classified 11 Taiwanese species in four families(Echiniscidae,Calohypsibiidae,Milnesiidae and Macrobiotidae), making Chinese keys of classification. From the habitat envoriment, the species, the density and the diversity we survey as well as the most suitable pH envoriment we experiment, we approach the relationship between the distribution of tardigrades and their habitat. Besides, we also research lots of conditions which bring cryptobiosis and make culture medium in order to inspect its living. These results indicate that tardigrades desiccate into cryptobiosis in ten munites in acid rain(pH4.65). From outdoor surveys, we have noticed tardigrades can’t be found in the moss right next to road.The length of each family is: Calohypsibiidae>Milnesiidae Milnesium>Macrobiotidae>Echiniscidae. 此研究是探討台灣熊蟲,而有關台灣熊蟲的文獻資料極少。熊蟲屬於緩步門,體長約 0.2-0.5 mm,熊蟲在不利的環境會蟄伏,環境有利時又會膨脹而復甦,而其構造系統不因此而破壞。 我們在桃園縣多處的苔蘚發現熊蟲,我們先將採集的苔蘚放至解剖顯微鏡下尋找熊蟲,再由複式顯微鏡觀察構造並拍照紀錄。研究主要是探討台灣本地的熊蟲,我們已分類出十一種台灣熊蟲,製作中文檢索表。藉由觀測採集環境和所測的密度、歧異度和種類,及實驗出其最適宜的 pH值,探討環境對其分布的影響。也探討各種因素與蟄伏的關係,製作培養基以觀測其生活史。研究結果顯示:1.已經分類出台灣有緩步門四科(端爪科、Calohypsibiidae科、Milnesiidae科和 Macrobiotidae科)十一種熊蟲。2. 污染嚴重或環境髒亂的地方,不會有熊蟲的存在,且熊蟲有群居性。3. 端爪科(棕色)熊蟲在 pH4.65(台灣都會區雨的酸鹼值)以下的液體環境活動力明顯降低。4.熊蟲多分布在高溼度(87.5~90.4%)的地方,不分布在中低溼度 (76%以下) 的地區。5. 各科的體長為 Calohypsibiidae科>Milnesiidae科 Milnesium屬>Macrobiotidae科>端爪科。
「天上掉下來的禮物嗎?」--討論近十年來大陸沙塵暴對台灣之影響與變化趨?
In recent years, sandstorms have seriously attacked Taiwan day by day. Combining with the observations of Central Weather Bureau and the satellite images of NASA, the study has been collected the data of suspension grain in decades. And the study hopes the sandstorms’ information could be observed in early period. Still it hopes to find out the possible transmission paths in the atmosphere. Then we know how to cope with sandstorms in early time. Sandstorms attack Taiwan frequently in alternation of the spring, the autumn, and the winter. Compared with thecharts of sandstorms and the satellite images, we could broadly aware hat the moving paths of sandstorms are related to the currents and the characteristics of the atmosphere. When El Nino happens, the times of sandstorms attacking Taiwan decrease, and that increase when La Lina happens. From the observation data of acid rain, when sandstorms attack Taiwan, acid rain would diminish. Combining actual Measures and satellite data in the future, maybe we can establish a prediction mechanism of sandstorms.近年來,大陸沙塵暴侵襲台灣的情況日趨嚴重影響。本研究中收集了近十年來懸浮顆粒資料,配合中央氣象局所觀測的資料與美國太空總署的衛星影像資料,希望能夠在早期觀測發現大陸地區沙塵暴訊息,和沙塵暴所帶至大氣中的懸浮顆粒可能傳輸的路徑期能早期應映。發生沙塵暴侵臺事件的季節,主要在秋冬及冬春兩季交替期間發生的次數為最多。由沙塵暴監測氣候圖表及美國太空總署的衛星影像進行綜合比對之後,可大致瞭解大陸沙塵可能的移動路徑與大氣環流及特徵有關。聖嬰現象(El Nino)發生時,侵襲臺灣的沙塵暴次數會減少。在「反聖嬰現象」(La Lina)發生時,侵襲臺灣的次數相對增加。由酸雨中得知大陸沙 塵暴侵襲台灣時,酸雨情況會減緩。未來結合實測及衛星資料或許我們可以預報大陸沙塵暴的侵襲。
液態導體的磁效應
本文所探討的議題為電解質溶滿通以電流後所產生的效應與機制。本實驗所採用的方法為電解與電鍍,運用這兩種方法,來比較電解液在不同狀況下所產生的結果;經過多次的實驗,累積了許多實驗結果,使我們可以得到更精確的數據 · 在此次實驗中,我們發現電解液在相同的電壓下,通以電流後的穩定性與金屬的活性有關,活性越大越不穩定;反之,活性越小越穩定。另一個發現為,只有單一極性離子移動的情形,可通過的電流,比陰陽離 r 同時移動時為大;但因通過的電流大使電解液反應劇烈,產物時時覆蓋電極使電流下降。所以就穩定性來說,是以陰陽離子同時移動為佳 · 在展望方面,希望可以發展到液態磁屏避的設備,可減少設備過重之問題 ·This is a study of how electric current effects the electrolyte solution. The experiment was conducted through two methods: electrolysis and electroplating, the results of which were compared. The experiment of the same designs hi been conducted repeatedly and, as a result, accurate data were collected and accumulated.One of the two major findings from the experiments was that, when under the same voltage, stability of the electric current varied with the change of activity of the metals; the greater the activity of the metals, the less stability of the current, and vice versa. The other major finding was that, with the movement of dipole-ion, a greater amount of current would go through the solution than that which would go through with the movement of cathode and anode; however, the greater amount of current would cause intense reaction of electrolyte solution, hence merging the electrode and reducing the current. So as long as stability is concerned, the movement of cathode and anode is preferable.It is hoped that more sophisticated experiments designed on the basis of the similar principles will eventually lead to the construction of equipment of liquid-magnetic shielding of smaller weight and size.
超聲波在液體的探討
本實驗一開始主要探討超聲波在水中的基本性質,如:指向性、衰減性…等。實驗發現,超聲波的衰減會同時與其指向性以及衰減性有關。 接著希望利用超聲波在水中的物理性質,近一步測量超聲波在水中的聲速,實驗中則利用駐波以及聲光效應測量。在駐波法測量聲速的實驗中,用洗淨機當作聲源,內部放置量筒,量筒內盛水後放入木屑,並使聲波在其中產生駐波即聲浮現象,求出波長後反推聲速,測量出的聲速誤差值僅有1.13%,而在使用聲光效應測量聲速的實驗中,使1.65 MHz 的超聲波在自製的壓克力容器內部所裝的水中產生駐波後,以波長650 nm 的紅光雷射通過,在遠處屏幕即產生似於光柵繞射現象,藉著屏幕上的繞射條紋反推該液體聲速,測量出聲速誤差均在5%以下。 在觀察聲光效應實驗中,發現過段時間後有氣泡產生,由文獻上,得知此現象為超聲空蝕現象(Acoustic cavitation),就設計實驗測量聲場中聲壓分部,並利用蠟紙觀察氣泡的成長。實驗發現聲場中的聲壓強度以及液體的表面張力和蒸汽壓會影響到產生空蝕的臨界值及產生氣泡的數量。 ;At the beginning this experiment explores the ultrasonic base in the water, including its velocity, the physics property of liquid, direction, and attenuation etc. . . At first, we use methods of standing wave to measure the velocity of sound under the water, using an ultrasonic cleaner as the sound source and putting some wooden powder in the water. As the standing wave accrues/produces, the powder will “stand still.” To measure the length between two grains of powder, in this way we can calculate sound velocity. Another method we use is diffraction of optics. Put 1.65 MHz source and water in a transparent container; then using laser through it. At the board much diffraction light stripes are created. By this way, we can estimate the velocity. Following these ways can calculate velocity precisely. In these experiments, some bubbles create in the container are discovered. We learn it is so-called “Acoustic Cavitation” based on the reference paper. Besides, we design experiment to know the bubbles’ growth and the number of the bubbles is connected to the physics property of liquid. We use different kinds of liquid with different vapor pressure and surface tension. Finally, we know when it has the smaller surface tension and bigger vapor pressure, the liquid makes bubble velocity grow faster and larger amount of bubbles are produced.
低溫二次燃料電池
本實驗係以台灣常見之數種植物(甘蔗、橡膠、破布子、苦苓)乾餾所成之多孔性碳棒鍍上銅和拷上Chitin 為電極兼電容,而以NaOH(aq)為電解液,製成化學電池。希望能研究出一低污染、低成本、能在常溫下經濟運作、並具有教學演示功能之電池。This research is based on the poromeric carbons which are made of several Taiwanese common plants (including: sugarcane, babul, Sabastan Plum Cordia [Cordia dichotoma Forst] , and Chinaberry tree [Melia azedadach L.]) by means of destructive distillation. The copperplating poromeric carbons later covered with Chitin functions as an electrode ac well as capacitance. Along with NaOH(aq) eletrolyte, a accumulator is then produced. The chief objective of this research is to produce a accumulator with low class of pollution and low cost, which is able to function economically under the normal atmospheric temperature. Also,this accumulator can serve as a teaching demonstration.
會旋轉的電解液
本研究主要探討電解液之帶電離子在磁場中的動力行為。為了觀察更細微的結果,共歷經三代裝置改良,第一代用五個電錶及探針測量徑向橫截面上五點的電壓,所測數值電壓有下降趨勢但不足以呈現細微部份的變化。第二代利用電壓感應線、搭配平移台及電腦,呈現連續性且經數位處理之結果,出現電壓升降的電荷堆積現象。第三代為了更精確,將裝置結構及器材上改良。觀察到在磁場作用下有旋轉現象,改變電極極性時,會有順逆時鐘方向的改變,且只有電解質液才會有旋轉。更可以使用帶電質點受到勞倫茲力F=q(VxB)理論解釋。且旋轉中的電解液比沒有旋轉時,析出的銅量少,反應溫度升高快,電解液內電壓分布因電荷堆積造成的高低起伏。經過改變磁場強度、電解液濃度,不銅價離子電解液,結果濃度大、磁場大、離子數較多者,呈現電壓分布圖快速變化,彎曲大。This thesis report is the study of combining the moving charged particles under the perpendicular magnetic field. By using the theory of moving and electrolysis, the electrolytic liquid will swirl through the particular arrangement of the horizontal cylinders enclosed in a circular enclosure container and strong magnet. Then, the researcher observes the force situation of the charge in the magnetic field and discusses the differences of the electrolysis effect, which is experimented under the different conditions, such as, in the magnetic field or no-magnetic field. Furthermore, the researchers discuss the conduction of voltage spreading and interfering when the moving electrons under different position of two electrodes and under the different interaction of electric field and the magnetic field. And the changing reason as follow: (1)the magnetic field strength. (2)the concentration of the electrolytic liquid. (3)electrolytic solution. When the experiment group compared with the comparison group, the result may provide fundamental understanding as follow:(1) The researchers can find out the charged particles rotating in the magnetic field. And it proved the moving condition when the moving electrons in the magnetic field. (2) This experiment can be used in judging the solution, which I electrolytes, or not. (3) This experiment also proved for Arrhenius’s ionic theory. (4) The researchers found out the quantity of Cuprun decrease, the rise in temperature and the reducing in voltage.
吸菸、喝酒與嚼檳榔之基因毒性研究
流行病學資料顯示,近年來口腔癌發生率明顯增加。本研究之目的是探討口腔黏膜細胞微核發生頻率及彗星分析法之基因傷害指標是否與菸、酒、檳榔暴露有關,以及是否可以看到菸、酒、檳榔之交互作用。 研究對象為桃園地區山地鄉之民眾,利用問卷收集個人之菸、酒、檳榔及干擾因子之暴露資料,再採集樣本之口腔黏膜細胞及血液樣本,進行基因傷害評估。 結果顯示,口腔黏膜之微核發生率與檳榔之暴露相關性最大,可以解釋12.6%;然而,彗星尾部動量和尾部長度則以香菸暴露解釋力最大;同時,檳榔與香菸的基因傷害交互作用似乎存在。因此我們認為,口腔黏膜細胞之微核發生頻率對於檳榔暴露者應是不錯的基因傷害指標,而香菸暴露則以彗星分析法之指標較為敏感。 ;Epidemiological studies showed that the incidence of oral cancer increased significantly in recent years. The purpose of this study is to evaluate the genotoxicity of cigarette smoke, alcohol and betel quid use as well as the. interaction effect between these three risk factors. The study subjects were selected from residents lived in a mountain area of Tao-Yuan county. We used questionnaire as a tool of exposure measurement. The exfoliated oral buccal cells and blood samples were collected for the assay of micronucleus frequency (MNF) and comet assay. We find that there are higher MNF in smokers, alcohol drinkers, and betel quid users compared with nonusers. However, a significant difference can not be found because of small sample size. The relationship between MNF and three risk factors was strongest in betel quid use, however, for smokers the parameters in comet assay were more sensitive than MNF. There is a tendency of additive effect between cigarette, alcohol and betel quid although without statistical significance. Advanced statistical analysis is suggested to find stronger evidence in the genotoxicity biomarker.