全國中小學科展

出國代表作品

線鋁之情-以陽極氧化鋁模板製作氧化亞銅奈米線

我們使用陽極氧化鋁(AAO)模板來製備銅及其氧化物的奈米線。以硫酸銅和乳酸配製電鍍液,利用氫氧化鈉水溶液(NaOH)將其pH 值調整到12,供以不同電壓,可電鍍出銅及氧化亞銅奈米線。在較高電壓下可製備出銅奈米線,而在較低電壓下可製成氧化亞銅奈米線,若使用中間電壓則能製得銅及氧化亞銅的混合態。利用x 光繞射分析儀(XRD)來分析其結晶構造、使用場發射掃描式電子顯微鏡(SEM)以得知其表面形貌。電鍍出的奈米線直徑約60 nm。奈米線的長度可藉由調整電鍍時間或電壓來控制。在製作IC 內部導線方面,銅奈米線深具開發潛能;在提升太陽能電池的轉換效率、製作可見光光觸媒方面,氧化亞銅奈米線極具前瞻性。We electrodeposited copper and cuprous oxide (Cu2O) nanowires with anodic aluminum oxide (AAO) templates. Both Cu and Cu2O nanowires could be prepared with an alkaline cupric lactate solution, which was adjusted to pH 12 using a 6 M NaOH, when supplied with different electrolytic voltages. Cu nanowires could be prepared when a higher voltage was supplied, and Cu2O nanowires could be prepared with a lower voltage. A mixture of Cu and Cu2O nanowires could be prepared with a supply of a voltage in between. X-ray diffraction (XRD) is used to determine the phase composition, and scanning electron microscopy (SEM) is employed to characterize the morphology of the nanowires. The length of nanowires can be controlled by adjusting the time spent on electrodeposition and the voltage supplied. The resultant diameter of the nanowires was about 60 nm. Cu nanowires are promising materials for making the conductive wires in IC, and Cu2O nanowires hold great promise for improving the conversion efficiency of solar cells and manufacturing visible-light photocatalyst.

關於二元根樹上的鏈、反鏈、獨立集的計數及極值

二元根樹是資訊科學上最重要的結構之一,因此其結構的探討就很有價值。在這個研究中,我們探討二元根樹上反鏈(Antichain),鏈(Chain),獨立集(Independent set)計數。在每一個子題之下,我們求出計算反鏈,鏈,獨立集的方法。之後我們求出極值(包括最大跟最小值),並且討論該極值之下所有可能的樹形。此外,我們並討論要列出二元根樹上這些資料(反鏈,鏈,獨立集)所需的演算法。In this paper we enumerate the number of antichains, chains, and independent sets of a binary tree of size n. After that we focus on the extreme values (maximal/minimal). we calculate the extreme values and discuss the possible graphs of trees when achieving these extreme values. Moreover, we offer algorithms for listing all the objects in each extreme case.

Parallelize it! 運算分享與系統自我校調

The research is about the optimal on parallel processing. Through boot disk – which will automatically finish booting configuration, .it is efficient and quick to build high performance PC clusters. The advantage of parallel computing could be applied to massive image processing. By sharing processing and breaking huge processing load into lots of pieces, we could get more efficient result. It is also possible to optimal parallel system through some special means such as dynamic configuration. Through the means, the system could distribute work loading itself. It could also adjust itself to get the highest performance and the most stable environment. 本研究之目的在於探討平行處理中的計算資源的最佳化,透過自動完成開機設定的Boot Disk 來有效快速建製出高效率的PC Clusters 環境,並透過動態配置與類神經網路的校調,使整體叢集的運算能自動調整至最佳化。平行處理優勢,可以應用在耗費極大量的運算資源的影像處理上。透過運算資源分享,可以以很高的效率將極為龐大的運算工作分散成許多較小的程序,使影像處理速度加快。經由平行演算法及實際應用的調整,可對已成形之平行系統作效能上的加強。使用類神經網路的方式訓練,使其系統能夠自我分配運算工作量,且隨著各平行化程式與各節點的不同,能自我校調至最佳化,達到高效率且穩定的運算環境。\r 本研究透過高效率且能自我調校的運算環境,可用於優化其本身結構,以達到\r 演化出更進一步系統,具有相當大的發展潛力。

台北市內湖金面山區兩棲爬行動物資源調查之研究

本研究之目的主要為調查臺北市內湖金面山區附近兩棲、爬行動物之物種概況,建立內湖地區的兩棲爬行動物基本生態資料庫,期望藉此研究可推行高中科學教育研究的基礎,並可充實自然生態保育與愛護鄉土心靈教育的實際教材。 調查研究工作是由2003年4月開始,至2004年5月為止,十四個月期間,總計85次的夜間野外觀察,已確認記錄兩棲爬行動物的種類共計有37種(分屬2綱3目13科24屬),蛙類:4科13種,蜥蜴類:4科9種,蛇類:4科13種,龜鱉類1科2種。 各物種總出現隻次方面,蛙類以拉都希氏蛙的1547隻次為最多,最少的是長腳赤蛙及斯文豪氏赤蛙,僅6隻次。蜥蜴類以黃口攀蜥的1995隻次最多,最少的為麗紋石龍子,僅4隻次;蛇類及龜鱉類以龜殼花最多,共計85隻次,而以梭德氏游蛇、大頭蛇、白梅花蛇、赤背松柏根、南蛇、盲蛇、食蛇龜及材棺龜等均只有1隻次為最少。 出現頻度方面,十四個月份中,蛙類的拉都希氏蛙及古氏赤蛙皆有出現,在85次的調查期間,則是以拉都希氏蛙的97.65%為最高,最少的為長腳赤蛙,只有3.53%;蜥蜴類的黃口攀蜥於十四個月份皆有出現,而在85次的調查期間,則有75次、97.65%最高出現頻度,麗紋石龍子於14個月份及85次的調查,出現頻度均是最低,各是21.43%及3.53%;蛇類及龜鱉類物種中,以龜殼花14個月及61次的出現記錄為最高,出現頻度分別是100%及71.76%;而食蛇龜及材棺龜均只有出現一個月及一次,故其出現頻度為7.14%及1.18%。 分佈廣度而言,於二十二個調查樣區中,蛙類以拉都希氏蛙的95.45%為最大,最小的為長腳赤蛙及斯文豪氏赤蛙的18.18%;蜥蜴類以黃口攀蜥的100%為最大,,最小的是無疣蜥虎的9.09%;蛇類則以龜殼花的86.36%為最大;龜鱉類物種皆僅4.55%的分佈廣度。 各樣區出現物種數方面,蛙類以A區的11種為最多,蜥蜴類以二期校區的7種為最多,蛇類是以AB區的9種為多;各樣區中,則是以AB區所發現的兩棲爬行動物物種數最多,合計共有22種物種。 由研究結果得知,調查樣區內的兩棲爬行動物物種歧異度大,其中蛙類的優勢物種為:拉都希氏蛙,蜥蜴的優勢物種為:黃口攀蜥,而龜殼花則為蛇類的優勢物種。而環境溫度的變化,與調查樣區內兩棲爬行動物出現活動的總物種數有顯著之相關性。 ;The goal of this research paper is mainly to investigate Taipei city, Neihu District, nearby Jin-Mian mountain’s amphibious and reptiles for the establishment of the lake area amphibious and reptile basic ecology information bank. It is hoped that this research will provide a foundation to further promulgate the high school science education and research, and may enrich the natural ecology protection and education materials for the loving care of local environment. The investigation started from April, 2003 to May, 2004, or for 14 months period and amounted to 85 times of field observations at night. It was confirmed that there were 37 species of amphibious and reptile ( 2 classes 3 aria 13 families 24genus),amphibious species: 4 families 13 species, lizard: 4 families 9 species, snake: 4 families 13 species, turtle: 1 family 2 species. In regard to the number of times of appearances, amphibious species of Rana latouchii had the most appearances with 1,547 times, and the least appearances was the Rana longicrus and the Rana swinhoana with only 6 times; for the lizards, Japalura polygonata xanthostoma had the most appearances with 1,995 times, and the least appearances was Eumeces elegans with only 4 times; for the snake and turtle, Trimeresurus mucrosquamatus had the most appearances with 85 times; for the Amphiesma sauteri sauteri, Boiga kraepelini, Lycodon ruhstrati ruhstrati, Oligodon formosanus, Ptyas mucosus, Ramphotyphlops braminus , Cistoclemmys flavomarginatn and Mauremys mutica , each had appeared only 1 time. On the appearance frequency, within the 14 months, amphibious species Rana latouchii and Rana kuhlii, Rana latouchii appreared 97.65%, the highest within the 85 investigations period, and the least was the Rana longicrus with only 3.53%; lizard Japalura polygonata xanthostoma had appeared within these 14 months, but in 85 investigations period, their frequency was 75 times, or 97.65% at the highest frequency. Eumeces elegans there upon within the 14 months and 85 investigations, had the lowest frequency each at 21.43% and 3.53%; for the snake and the turtle species, Trimeresurus mucrosquamatus within the 14 months and 61 appearances had the highest frequency record at 100% and 71.76%; but Cistoclemmys flavomarginata and Mauremys mutica only appeared once in a month and, therefore its frequency was at 7.14% and 1.18%. For the distribution breadth, in 22 investigation sample areas, amphibious species take Rana latouchii of the amphibious kind had the biggest record at 95.45%, and the smallest was Rana longicrus and Rana swinhoana at 18.18%; for the lizards, Japalura polygonata xanthostoma was 100% as the biggest, and the smallest was Hemidactylus bowringii at 9.09%; for the snake, the Trimeresurus mucrosquamatus was at 86.36% as the biggest; the turtle species had only 4.55% distribution breadths. For the number of appearance in each area, amphibious species in area A had the most with 11 species, lizard of second period school area had the most with 7 species, the snake of area AB had the most with 9 species. In all other areas, the amphibious reptile species number in area AB had the most with 22 kind of species. From the results of the research, the biodiversity of amphibious and reptile species within the investigation areas is very high, Rana latouchi is the codominant of Frog; Japalura polygonata xanthostoma is the codominant of Lizard, and Trimeresurus mucrosquamatus is the codominant of Snake.

一后多夫否?黑棘蟻(Polyrhachis dives)聚落生殖策略之研究

A vast amount of research has been conducted on various ant species such as Monomonum pharaonis, Formica rufa, and Lasius niger, demonstrating the coexistence of polygyny and monogyny colonies. In polygyny colony, the high heredity variability of filial generation could be expected, but what could the monogyny colony do to hold the high heredity variability in order to increase the fitness? I hope I can account the sex ratio in the colony of spiny weaver ants, Polyrhachis dives, and compare the different colony with different reproductive strategies. I also want to check by V8 that the colony can form a polygyny colony and virgin queens can mate with many males of the same colony in the artificial nest. The results suggest that in the colony of spiny weaver ants, the higher the number of the dealate queens, the lower the number of the male. In the monogyny colony, workers control the sex ratio. According to the observation, we can see the alate adult mate in the artificial nest, and multimating can be recorded for the first time. The following study was there for undertaken to examine what’s the aftereffect made by the Reproductive strategies of polygyny colony and monogyny colony.在多后聚落內,子代變異度高是可以預期的,但是單后聚落中,又如何維持遺傳的變異度以增加其對環境的適應力呢?我們希望能計算黑棘蟻聚落組成,比較不同生殖策略的聚落之各種性比,並且錄影證實黑棘蟻聚落可以為多后聚落並進行巢內自交。我們發現:黑棘蟻聚落內,蟻后數愈高,則雄蟻比例較低;單后聚落之性比決定於工蟻;而根據錄影觀察,聚落中的有翅生殖族可在人工蟻巢中完成交配,多次交配的現象首次被實地紀錄,並且佔所有交配新生蟻后的92.8%。本實驗可利用黑棘蟻來了解單后與多后聚落的生殖策略對其族群發展的影響。

吸〝氣〞大法-QCM 對有機氣體之吸附與偵測

中文摘要:\r 化學實驗中,常常會使用到各種具有揮發性的有機溶劑,如醇類、酸類、醛類及酮類等。\r 當吸入過量的揮發性有機溶劑時,將會對人體造成嚴重的傷害,故使用時格外需要留意。有\r 鑑於此,我們開始著手研究如何偵測氣相中的有機氣體分子。\r 本研究中,我們利用聚苯胺薄膜吸附氣體分子的特性並結合對質量變化極靈敏的石英晶\r 體微天平,自行設計了一套簡單、藥品用量少且不需昂貴儀器的實驗系統。藉由此系統,我\r 們有效的針對各種揮發性有機溶劑進行偵測,並進一步地探討不同氣體分子對於聚苯胺薄膜\r 的吸附現象。\r \r 英文摘要:\r Students usually use volatile organic solvent in laboratorys such as alcohols, carboxylic acids,\r aldehydes, ketones, etc. It will injure our body when we breathe in too much volatile organic\r solvent. For this purpose, we begin to study how to detect volatile organic compound in air.\r In this work, we combine polyaniline membrane which can adsorb gas molecules and quartz\r crystal microbalance which is highly sensitive to mass changes to design a simple and inexpensive\r system which needs only little chemicals. With this system, we can effectively detect different\r volatile organic compounds. Furthermore, we can also study the adsorption of polyaniline\r membrance for different volatile organic compounds.

聚對位苯基乙烯高分子發光二極體性能研究

高分子發光二極體為導電高分子之熱門研究課題,因其有低成本、製程簡易、可大面積化之優點為無機高分子發光二極體所缺乏,所以受到學術界與工業界之注目。由於高分子發光二極體其有廣視角、高答應速度、低驅動電壓、可製成撓曲式元件等特質,極具成為下一世代顯示器之潛力。高分子聚苯胺為高分子發光材料中,具有低驅動電壓與高發光效率之優點,故本研究將之選為電洞傳遞層材料。但唯一缺點就是不易溶於溶劑中,所以在實驗驗中有安排質子酸摻雜的步驟,就是為了要改變高分子的電性、磁性、光學性質或結構,同時導電度也隨之增加。本研究以ITO基板改質及無電極電鍍為研究主軸,以此來增加其之性能。改質ITO基板目的,是希望使得ITO陽極表面平坦化且可促使電洞注入,進而增加發光層材料附著力與阻隔電子直接導入陽極之特性,故可增加元件之發光亮度。而使用無電極電鍍法,因為其不須通電就能進行電鍍的反應,行成的薄膜也很均勻。所以採用無電極電鍍法,來完成電鍍的步驟。The polymer light emitting diodes is one of the most important study projects in the field of the conducting polymer due to the low production costs、 simple production process、great surface products that the organic light emitting diodes can not achieved. The purpose of this study is try to utilize the polyaniline as the electric hole transfer layer, and the MEH-PPV as the light emitting layer. The disadvantages of the polyaniline are the low solubility in solvents that was improved by doping proton acids. The performance of the indium-tin oxide was improved by the self-assembling method that made the surface of the ITO became more smooth to help the electric hole injection of electrions. And the aluminum cathode was produced by the electrode less plating.

大氣層厚度光學測量法之研究及創新

這個專題研究的目的是要發展出一套簡單可靠的方法和廉價自製的器材,在地面上即能有效估測大氣層的厚度。我們小組研究光學中雷氏(Rayleigh)散射的原理,針對空氣分子對光線散射作用和特定方向之偏極效應,利用一已知散射長度之路徑,測量其偏極光的強度,同時比對由大氣層散射而來,在同一偏極面上的散射光強度,即能估算大氣層的厚度,方法簡單新穎,自製器材經實際測量和改進,有發展和推廣的價值。\r The main idea of the experiment is to set a system in order to effectively estimate the thickness of the atmosphere. On the theory of “Rayleigh Scattering” (small air molecules sizing about 10-4μm), we developed an equipment that has two tubes. The tubes lead the scattered lights from two paths. One is called “air light” scattered in the ground air, and the other “sky light” is scattered in the sky and reflected by a beam splitter. The two paths are on the same plane; the scattered lights are perpendicular to the direction of sunlight and 100% polarized. We could adjust and measure the distance “d” of the air light path. We simultaneously observe and compare the intensity of the lights from the two paths with the electronic instrument made by ourselves. By using the known distance “d” and the reflection “x” of the beam splitter, we can calculate the thickness of the atmosphere. The experiment is simple, novel and easy to do in an extensive field at school. Researchers don’t have to use a bloom, radar or satellite to discover the atmosphere, but you could use a simple equipment to observe the features of it.

鐵基奈米顆粒製程及物性分析

超導體具有兩大特性 - 抗磁性及零電阻,若善加利用便能大量減少能量損\r 失。不過目前發現的超導體有的結構太複雜,其他則是臨界溫度太低。一年前科\r 學家發現不同於以往銅氧組成的鐵基超導體(FeSe),結構簡單但其臨界溫度仍\r 然太低。故我們利用原料濃度比例不同的Fe 及Se 以TOPO 熱熔法析出奈米顆\r 粒,分析其超導性質。結果顯示Fe 比Se 難析出,故Fe 濃度應比Se 多,且在油\r 性水域中較好混合。

低像差可變倍率透鏡之設計分析與應用

傳統光學玻璃透鏡的焦距和倍率都是固定,改變倍率必須靠多重透鏡組和改\r 變鏡組距離。可變倍率透鏡則在單一透鏡中具有多重倍率,可讓光學器材簡單輕\r 巧。我使用高彈性薄膜和高折射率液體,進行可變倍率液體透鏡的設計、分析和\r 製作,並不斷地改進,讓其達到輕薄化、微小化及低成本的特性。同時我推導出\r 液體透鏡之各種理論焦距與倍率,找出倍率與液量之關係,並以實驗驗證。\r 而像差是液體透鏡很難解決的問題。我透過電腦模擬和分析,建立減少液體\r 透鏡像差的方法,並以實驗驗證此方法的可行性。研究中也設計發展出多項應用,\r 包括成像教具、生物觀察器、非接觸式測距器、內視鏡、可調兩段式聰明眼鏡,\r 對教學、日常應用、醫療保健等,都提供相當大的幫助。