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。
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.
聲音頻譜圖在材質上鑑定的應用-以鑽石唱針對金屬材質研究為例
本研究的目的在利用LP 唱盤系統發聲原理,以鑽石唱針摩擦各種金屬表面所產生的頻譜圖,與金屬材質的相關性。除了LP 唱盤外,我們應用CoolEdit 軟體來分析聲音資料,並利用相似度統計理論,將頻譜圖用量化比較。實驗結果發現:Ⅰ、藉用LP 系統錄取各種金屬材質頻譜圖形,有相當高的穩定性,相同金屬聲音頻譜圖形重疊性高,以統計演算出的量化結果與圖形觀察相似。Ⅱ、同一金屬在不同摩擦速率時,所產生的頻譜圖略異,經由樣本相似度門檻t 值鑑定,顯示摩擦的速率會影響聲音頻譜的產生。本研究的結果可應用在材質的分析比較。The objective of this study is, based upon the principle how LP phonograph players generate sounds, to obtain sound spectrographs from rubbing diamond phonograph needles against surfaces of a variety of metal and thus to link the sound spectrograph to certain metal material. Besides the LP phonograph player, we also use the software, Cool Edit, for analysis of sound data and, according to theory of similarity statistics, quantity comparisons of spectrographs. The result of the study shows: I. A high stability exists when spectrographs of a variety of metal material are recorded by the LP system. There is high frequency that spectrographs of same metal material overlap. The quantification result from statistic calculation is similar to the graphs as they are observed. II. Spectrographs differ slightly when a certain metal is rubbed at different speeds. As appraised by sample similarity threshold t value, it shows that rubbing frequency will affect the formation of spectrographs. The result of this study can be employed to analyze and compare qualities of material.
「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。
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.
擺動知覺曉,觸角知多少!--光線與震動影響美洲蜚蠊觸角擺動模式之研究
During the biology classes from junior to senior high, we have learned many interesting instance of different animal behavior. Most people paid more attention on the Vertebrates as their experimental subjects. The other species around us, although with simple body structures, may behave rather complicated and versatile reactions. In particular, one of the most common insects with simple body structure in our neighborhood is the American cockroach (Periplaneta americana). The aim of this study is to investigate the different swing motion modes of antennae of American cockroach by computer-aided Imaging Analysis. The parameters of each swing motion mode were calculated in order to analyze how light (including light stimulation and light adaptation) and vibration may affect the antennae behavior of American cockroach. It was found that the antennae swing motion modes were significantly different under different types of stimulus. If two types of stimulus occurred at the same time, the reactions of antennae motion may become conformable. In conclusion, antennae behavior has shown to significantly affect the survivability and environmental adaptation of American cockroach. Not only the antennae are considered as the sensitive receivers; but also they are the important transmitters to reflect physiological status and environmental condition.從國中到高中的生物課堂上,我們學到許多有趣的動物行為例子,但前人多以脊椎動物作為研究對象,而我們身旁的許多生物,身體構造雖較為簡單,但行為表現卻豐富多樣,尤其是常見的美洲蟑螂(Periplaneta americana),可說是最親近我們的昆蟲之一。本研究以攝影紀錄的方式,透過電腦進行影像分析,記錄不同刺激下蟑螂的觸角擺動模式,並計算出各項觸角運動的參數,以瞭解光線(照光刺激或照光適應)與震動刺激對其觸角行為的影響。我們發現在不同因子的刺激下,觸角擺動的模式具有差異,若兩種刺激同時發生,蟑螂觸角的行為亦具有整合性的反應,證明蟑螂觸角的行為模式,對其生存與適應具有重要意義。這也代表觸角除了為敏感的受器,亦為能反映出生理與環境狀態的重要動器。
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.
高中各學期成績與指定考科相關性
在升學主義越來越興盛的社會中,考試成績成為人人關心的重點,這\r 次研究就是藉由數理資優班同學的各學期在校成績和指定考科成\r 績,透過迴歸分析,找出各學期成績與指考成績之間的關係,並利用\r 圖表來解釋各種科目在各學期的課程,在高中三年所學的重要性,在\r 藉由此結果,希望能對目前老師的教育重點及學生學習方式能有所幫\r 助,亦可了解學生在高中求學過程中,哪些階段對指考成績較有正面\r 影響,進而強化該學習階段,以有助在指定考科時能充分發揮所學。\r \r In a society that emphasize on degrees, examination scores become the\r spotlight, and the ultimate goal for a high school student who had worked\r so hard for three years is to achieve high scores in the J.C.E.E. In the\r three years of high school, each subject has different topics each semester,\r but which semester has the most decisive effect on the J.C.E.E. score?\r This research is to study the effect of each semester on the J.C.E.E. by\r analyzing the grades of a science and math talented class in Senior High\r School using Regression analysis to find out the connections between\r term grades and the J.C.E.E. Then finding out which term grades had the\r most decisive effect in each subject. By using the result, we hope it can\r help teachers in their teaching and students in their learning. Also, it can\r provide the information about which stage in high school has positive\r effects on J.C.E.E. grades, therefore enabling students to emphasize on\r that stage in order to perform well on the J.C.E.E.
以珊瑚蛋白及光頻轉換分子改善太陽能電池效率之研究
能源危機日益嚴重,開發再生能源成為當務之急。在諸多的再生能源之中,太陽能最易於使用,且可源源不絕的不斷取得利用。但目前太陽能電池的效率始終不高。其中重要的原因是太陽本身的頻譜多為短波長,並不適合絕大部分頻譜響應較佳,多為長波長的太陽能電池。目前改善效率方式,多為改變太陽能電池的頻譜響應以配合太陽之頻譜。本研究提出反向思考的概念,藉由頻譜轉換的方法,改變照射在太陽能電池上的太陽光頻譜,以提升太陽能電池的效率。本研究利用一種珊瑚礁的螢光蛋白質(DsRed)以及人工合成的螢光染料(Cy-5)最為本研究的頻譜轉換的材料,加於低成本,目前市場佔有率較大的單晶矽太陽能電池上,經由理論與實驗的結果顯示,增加的發電效率約為3~5%,證實利用頻譜轉換的概念確實可以提升太陽能電池的效率。Energy crisis has become more and more serious in recent years, which makes recycled-energy development is a must. Among different recycled energies, solar power has two advantages, that is, easy-to-use and endless supply. However, the conventional solar cell makes poor use of the solar spectrum because the solar spectrum is mainly composed of short-wavelength, which can’t fit to most of solar cells which is more sensitive to long-wavelength. Currently, the major method to improve the efficiency is change the function of spectral response, such as concentration lens, tracking devices, and antireflection coating. Up to now, no one notices the possibility of changing solar spectrum yet. This research provides an insight into this issue. Instead of changing the function of spectral response, I changed the solar spectrum, which irradiates solar cells through spectrum conversion to improve solar cells’ efficiency. This research uses one kind of coral fluorescence proteins (DsRed) and one kind of artificial fluorescence dyes (Cy-5) as the materials of spectrum conversion. Then coat them on the low-cost and high-market-share mono-crystal-Si. According to the theories I researched and my experiments, the improvement of the efficiency is about 3~5%, which proves it is actually useful to elevate the efficiency of solar cells through spectrum conversion.
長方體中切割正立方體之研究
在1940 年代,Bouwkamp 提出一系列有關如何將矩形切割成若干個正方形的研究報告,但是如何找出正方形個數最少的方法仍是長久以來懸而未決的問題。在本研究報告中,首先引進「四角切割」的方法,並結合輾轉相除法的概念,來研究矩形的切割問題。我們的方法能大幅度降低正方形的個數,也適合做為此問題的上界函數。有關如何在長方體中切割出正立方體的組合,我們也將輾轉相除法的概念延伸到三維空間,進而建立所切割出最少個正立體數的一個上界模式。此外,藉由四角切割概念的延伸,我們也發現這個上界亦可再予修正。In 1940’s, Bouwkamp proposed the study of dissecting squares from rectangles. Among the study, the problem of the least number of dissected squares has been open for decades. In this project, we first propose a corner dissection method, associated with the famous Euclidean algorithm. By reducing nearly three fourths of the number dissected by the primitive Euclidian algorithm, our method indeed establish a suitable upper bound of the minimal number of dissected squares from the given rectangles Meanwhile, the Euclidean algorithm has also been considered to dissect the cubes from cuboids. We analyze the fundamental properties of the method and establish a prototype of upper bound function for the minimal number of dissected cubes. Moreover, the method of corner dissection has also been implemented for some cuboids, which also exhibits the acceptable improvement being a suitable upper bound.