1,721,048 research outputs found
A new genus and species of slug caterpillar (Lepidoptera: Limacodidae) from Taiwan
No full textLin, Yu-Chi, Braby, M.F., Hsu, Yu-Feng (2020): A new genus and species of slug caterpillar (Lepidoptera: Limacodidae) from Taiwan. Zootaxa 4809 (2): 374-382, DOI: https://doi.org/10.11646/zootaxa.4809.2.
FIGURES 13–16 in A new genus and species of slug caterpillar (Lepidoptera: Limacodidae) from Taiwan
No full textFIGURES 13–16. Male genitalia of Epsteinius translucidus and Microleon longipalpis: 13, 14, genitalia (ventral) and phallus (lateral) of E. translucidus Lin, sp. nov.; 15, 16, genitalia (ventral) and phallus (lateral) of M. longipalpis.Published as part of Lin, Yu-Chi, Braby, M.F. & Hsu, Yu-Feng, 2020, A new genus and species of slug caterpillar (Lepidoptera: Limacodidae) from Taiwan, pp. 374-382 in Zootaxa 4809 (2) on page 378, DOI: 10.11646/zootaxa.4809.2.8, http://zenodo.org/record/393424
Evolution of the microstructure and tribological performance of Ti-6Al-4V cladding with TiN powder
No full textFIGURES 24–30 in Systematic position of Bombyx incomposita (Lepidoptera: Bombycidae), with notes on its immature biology and hostplant association
No full textFIGURES 24–30. Genitalia and wing venation of Bombyx incomposita: 24, male genitalia; 25, phallus (posterior on the right, anterior on the left); 26, tergum VIII; 27, sternum VIII; 28, female genitalia; 29, forewing; 30, hindwing. Scale bars = 2 mm and 10 mm (Figs. 29–30).Published as part of Lin, Rung-Juen, Lin, Yu-Chi & Hsu, Yu-Feng, 2021, Systematic position of Bombyx incomposita (Lepidoptera: Bombycidae), with notes on its immature biology and hostplant association, pp. 91-104 in Zootaxa 5052 (1) on page 98, DOI: 10.11646/zootaxa.5052.1.5, http://zenodo.org/record/556606
FIGURES 1–12 in A new genus and species of slug caterpillar (Lepidoptera: Limacodidae) from Taiwan
No full textFIGURES 1–12. Adults of Epsteinius translucidus and Microleon longipalpis: 1, 2, E. translucidus Lin, sp. nov. holotype male upper side and underside; 3, 4, E. translucidus Lin, sp. nov. paratype female upper side and underside; 5, 6, M. longipalpis male upper side and underside; 7, 8, M. longipalpis female upper side and underside; 9, 10, M. longipalpis holotype male upper side and label data (Yokohama, Japan) (NHM); 11, 12, male heads of E. translucidus Lin, sp. nov. and M. longipalpis.Published as part of Lin, Yu-Chi, Braby, M.F. & Hsu, Yu-Feng, 2020, A new genus and species of slug caterpillar (Lepidoptera: Limacodidae) from Taiwan, pp. 374-382 in Zootaxa 4809 (2) on page 377, DOI: 10.11646/zootaxa.4809.2.8, http://zenodo.org/record/393424
FIGURES 34–46 in A new genus and species of slug caterpillar (Lepidoptera: Limacodidae) from Taiwan
No full textFIGURES 34–46. Head, pupa, and female 5th tarsomere of Epsteinius translucidus and Microleon longipalpis: 34–35, head with right labial palpus and galeae of M. longipalpis; 36–37, head with right labial palpus and galeae of E. translucidus Lin, sp. nov.; 38–39, eclosed pupa and ruptured pupal eye of M. longipalpis (arrow denotes fracture line); 40–42, uneclosed pupa, uneclosed pupal eye, and eclosed ruptured pupal eye of E. translucidus Lin, sp. nov. (arrow denotes fracture line); 43–44, female 5th tarsomere and sensilla of M. longipalpis; 45–46, female 5th tarsomere and sensilla of E. translucidus Lin, sp. nov..Published as part of Lin, Yu-Chi, Braby, M.F. & Hsu, Yu-Feng, 2020, A new genus and species of slug caterpillar (Lepidoptera: Limacodidae) from Taiwan, pp. 374-382 in Zootaxa 4809 (2) on page 381, DOI: 10.11646/zootaxa.4809.2.8, http://zenodo.org/record/393424
Using Technical Analysis to Create Trading Strategies for Exchange Traded Funds
No full text由於理財意識的高漲及投資商品的多樣化，投資人都在尋找較好的買點及賣點。在瞬息萬變的股票市場中，本研究期許能夠擬出一套交易策略，找出最佳的買賣時機，而獲得超額報酬。研究以技術分析為研究基礎，運用多種技術分析來建立交易策略(只做多)，本研究利用2000年6月至2008年4月指數股票型基金(台灣EWT, 香港EWH,日本EWJ, 美國SPY)日資料為研究樣本，驗證交易策略是否能夠有效擊敗買進持有策略，並且比較不同交易成本下所得之報酬。證結果顯示： .以指數股票型基金為研究標的，不論是否考慮交易成本，交易策略之報酬優於單純買進持有策略。 .移動平均線法是非常有效的技術指標。.多種技術分析組合策略的報酬優於單一技術分析策略。目錄試委員會審定書謝…………………………………………………………………… i文摘要…………………………………………………………… ii文摘要…………………………………………………………… iii錄…………………………………………………………………… iv目錄………………………………………………………………… vi目錄……………………………………………………………… vii一章 緒論……………………………………………………………1一節 研究背景與動機 …………………………………………1二節 研究目的 …………………………………………………2二章 文獻探討………………………………………………………3一節 技術分析理論基礎與方法介紹…………………………3二節 相關實證文獻探討………………………………………8三章 研究方法………………………………………………………13一節 技術指標說明……………………………………………13二節 資料來源…………………………………………………20三節 投資操作策略……………………………………………22四章 實證結果分析…………………………………………………27一節 實證結果………………………………………………………27二節 實證結果分析……………………………………………35五章 結論與建議………………………………………………… 36一節 結論………………………………………………………36二節 建議………………………………………………………37amp;#63851;考文獻………………………………………………………………38錄……………………………………………………………………4
Accurate Human Positioning Based on Human Movement Characteristics
No full text行動裝置位置導向之真實情境展現界面，為一人性化的人機界面，但卻十分仰賴足夠精確之位置及姿態資訊。利用微型慣性定位技術可提供行動裝置所需的狀態資訊，並可在外部定位(如GPS、WiFi定位等)無法持續取得訊號的情況下，提供連續位置及姿態資訊，但卻有隨時間增加之累積誤差問題。 本研究旨在開發新型室內定位技術，透過人體運動特徵(human movement characteristics)建立人體於室內常見動作之人體運動數學模型。當長時間無法接收外部定位訊號，如處於騎樓或室內時，能藉由開發所得之人體運動數學模型，配合慣性定位系統所得之資料進行人體定位。本研究針對室內常見動作，包括步行、上下樓梯、坐到站以及站到坐，建立不同動作之人體運動數學模型，並透過小波轉換技術將以上動作進行判別與分類。於步行及上下樓梯之運動數學模型中，亦將轉彎列入考慮，讓此定位技術能夠更完善的運用於人體定位。 於基礎定位技術開發完成後，為求完整的定位效果與將來實用性考量，本研究將初步定位結果加入圖資，且於圖資化過程中加入座標系統，標示出定位位置，並於地圖下方顯示定位座標值，完成精確人體定位技術開發。 為測試此技術的發展性，本研究將感測器放置於人體不同位置，討論其定位效果，以及定位設備最小需求。除此之外，為驗證此技術之重複性和可靠度，透過六位不同受試者進行多項定位結果分析並進行討論。研究結果顯示，於六位不同受試者的實驗驗證下，平地走路的誤差率在3%以下，各種室內常見動作之判別成功率都在75%以上，而此技術感測器放置位置為胸骨劍突處及小腿處精準度最佳。Location-Based Life-Reality (LBLR) realized on mobile device is proved to be a user-friendly man-machine interface (MMI). However, it heavily relies on the fact that the system must continuously get accurate position and attitude information. Inertia positioning of micro sensors can continuously provide LBLR mobile device with needed state information. However, it has the problem that its integrator accumulates the sensor errors and its accuracy dramatically decays with time.he purpose of the current study was developing the new indoor positioning technology which was founded on human mathematical model constructed with human movement characteristic during common in indoor movement. When the signal of external positioning system (EPS) is unavailable, such as people under overhang of a building or indoors, our new positioning technology which was utilized the combination of the developed human movement mathematical models and the inertial data can effectively position the human location. his study aimed to develop different movement of human movement mathematical model during common indoor movements, including level walking, stair ascent and descent, sit-to-stand and stand-to-sit, and to apply the wavelet transformation technology in reorganization and classification of all the movements. For the human mathematical model during level walking, stair ascent and descent movements, movement of turning would be also considered in the establishment of this positioning technology for more accurate human positioning.n the strength of the consideration of the positioning effects and practicability of our newly developed positioning technology, we added the map and the coordinate system in the mapping process for displaying the positioning result and the coordinates below the map shown in the monitor of the mobile positioning device. n order to test the practicability of this positioning technology, we put the inertial sensors on different body positions of human for confirming the positioning effects and the minimum requirements of this technique. Otherwise, six subjects were recruited to participate in different motion experiments for confirming the reproduction and validity of the new positioning technology. The results of different motion experiments in the current study showed that the positioning error during level walking was below 3%, the rate of success for classifying different indoor movements was greater than 75%, and the best sensor placements were Xphoid process and shank.摘要 ibstract ii錄 iv目錄 vii目錄 x一章 緒論 1一節 研究背景 1二節 定位系統面臨的問題 1三節 慣性定位系統之應用 3四節 研究目的 4二章 基礎理論 5一節 慣性定位設備之誤差 5、 系統訊號誤差 5、 系統積分誤差 8二節 積分原理與方法 9三節 人體運動數學模型 11四節 步長向量(step vector) 16五節 小波轉換理論 17六節 數位影像處理 21三章 實驗材料與方法 23一節 實驗設備與受試者 23、 慣性定位儀 23、 受試者 24二節 研究方法 25、 人體運動之分析 25、 慣性資料之計算 26、 建構不同狀態下之人體運動數學模型 27、 將慣性感應器擺放於人體不同位置 28、 動作判別與分類 28、 連接所有動作與相對應之人體運動數學模型 29、 自行建立室內地圖 30、 移動路徑圖資化 31四章 實驗驗證設計 33一節 慣性感應器放置處 33二節 靜態校正 34三節 ㄇ字型直線路徑試驗 34四節 慣性感測器結合人體運動數學模型與直接積分之比較試驗 35五節 慣性感測器不同擺放位置對人體運動數學模型之影響探討 35六節 人體數學模動作判別與分類成功率試驗 36七節 人體數學模型所需之慣性資料最小需求探討 36八節 室內至室外之連續動作試驗 36九節 利用自製地圖進行實際測試 37十節 模型之重複性及可靠度探討 37五章 結果與討論 38一節 ㄇ字型直線路徑測試結果 38二節 慣性感測器結合人體運動數學模型與直接積分之比較試驗結果 39、 平地走路試驗 39、 上下樓梯試驗 41、 比較慣性定位系統結合人體運動數學模型及直接積分之定位結果 44三節 慣性感應器不同擺放位置對於定位結果之影響 46四節 建立人體數學模型所需之慣性資料最小需求 47五節 判別並分類步行、上下樓梯、坐下起立等不同運動狀態 48六節 室內至室外之連續動作試驗結果 54七節 利用自製地圖進行實際測試 57、 自製地圖 57、 座標系統 59、 國立台灣大學第一男研究生宿舍試驗結果 60八節 結論 63九節 未來方向 63考文獻 6
The Change and Refolding Efficiency of Lysozyme of Redox Pair in Refolding Buffer
No full text無論在工業上或學術研究上，對於蛋白質復性程序中，如何在高濃度蛋白質下，提高復性產率為主要課題。直接稀釋法為最簡便之復性方法，而藉由氧化還原對濃度的改變、添加劑的加入以及物理方法上的應用皆有效的提升蛋白質復性效果。
本研究針對復性緩衝液中還原態穀胱甘肽(reduced glutathione,GSH)濃度變化作分析，探討不同操作條件下所造成的影響，最後將所得濃度變化以動力學分析，期望得到一合適之反應方程式。同時將復性緩衝液隨時間放置，測量其對活性回收率之影響，討論氧化還原對(GSH/GSSG)濃度及比例在復性程序中的效果。我們使用高效能液相層析儀 (HPLC)將GSH濃度變化作分析，結果顯示在高溫環境下(50℃∼90℃)，GSH於反應後期均會產生副產物，而在低溫環境下(20℃∼40℃)，GSH則隨時間氧化成GSSG。利用動力學分析不添加EDTA時，GSH氧化速率為一0.5級反應；而添加EDTA則有效的延遲其氧化速率，為一1 級反應。在溶菌酶復性過程中，復性緩衝液隨時間放置，由於GSH氧化形成GSSG，復性效果亦隨時間增加。將GSSG濃度變化對活性回收率做圖以及GSSG/GSH比例對活性回收率做圖比較下可發現，GSSG濃度與活性回收率之間有正相關；而GSSG/GSH並非影響復性效果之絕對因素。且在GSSG濃度達1.2mM 以上時，有最好的活性回收率。中文摘要......................................................................I
英文摘要.....................................................................II
目錄.........................................................................IV
圖目錄.......................................................................VI
表目錄.......................................................................XI
第一章 緒論..................................................................1
第二章 文獻回顧..............................................................3
2-1-1 溶菌酶 (Lysozyme)介紹..................................................3
2-1-2 溶菌酶之活性測定.......................................................6
2-2 蛋白質之變性.............................................................7
2-2-1 蛋白質結構與穩定蛋白質分子之作用力.....................................7
2-2-2 各種蛋白質變性方法.....................................................8
2-2-3 各種常見的變性劑.......................................................9
2-3 蛋白質之復性............................................................11
2-3-1 移除變性劑............................................................13
2-3-2 降低變性劑濃度........................................................16
2-4 穀胱甘肽(glutathione)介紹...............................................27
2-4-1 穀胱甘肽(glutathione)簡介.............................................27
2-4-2 穀胱甘肽之合成(biosynthesis)及分解(degradation) ......................29
2-4-3 穀胱甘肽的功能........................................................31
2-4-4 穀胱甘肽測量方法......................................................33
第三章 研究目的.............................................................36
第四章 實驗裝置、藥品與步驟.................................................37
4-1 實驗裝置.................................................................37
4-2 實驗藥品.................................................................38
4-3 實驗步驟.................................................................39
4-3-1 以HPLC測試還原態榖胱甘肽(GSH)及氧化態榖胱甘肽(GSSG) ...................39
4-3-2 以HPLC分析復性緩衝液成分濃度變化.......................................39
4-3-3 溶菌酶之變性...........................................................42
4-3-4 溶菌酶之活性測定.......................................................42
4-3-5 溶菌酶之直接稀釋法復性.................................................43
第五章 結果與討論...........................................................44
5-1 以高效能液相層析儀(HPLC)分析復性劑之變化.................................44
5-1-1 復性緩衝液層析圖形.....................................................44
5-1-2 還原態榖胱甘肽(GSH)隨時間放置之變化...................................45
5-1-3 環境溫度對復性緩衝液之影響............................................46
5-1-4 還原態榖胱甘肽(GSH)隨時間放置之濃度變化................................48
5-2 不同操作條件下對復性緩衝液成分濃度變化之影響.............................54
5-2-1還原態榖胱甘肽(GSH)起始濃度及環境溫度之影響.............................54
5-2-2 金屬螯合劑(EDTA)之影響.................................................61
5-2-3氧化態榖胱甘肽(GSSG)對氧化速率之影響....................................68
5-3還原態榖胱甘肽(GSH)氧化速率之動力學分析...................................72
5-3-1 不添加EDTA復性緩衝液之動力學分析.......................................72
5-3-2 添加EDTA復性緩衝液之動力學分析.........................................76
5-4 復性緩衝液放置時間對復性效果之影響.......................................80
5-5 尿素對復性緩衝液之影響...................................................88
第六章 結論與建議............................................................91
參考文獻.....................................................................9
Fig. 5 in Triterpene glycosides and phenylpropane derivatives from Staurogyne concinnula possessing anti-angiogenic activity
No full textFig. 5. Inhibition of FAK/paxillin/MMP signaling pathway treated with 4.Published as part of Vo, Thanh-Hoa, Lin, Yu-Chi, Liaw, Chia-Ching, Pan, Wen-Pin, Cheng, Jing-Jy, Lee, Ching-Kuo & Kuo, Yao-Haur, 2021, Triterpene glycosides and phenylpropane derivatives from Staurogyne concinnula possessing anti-angiogenic activity, pp. 1-9 in Phytochemistry (112666) 184 on page 8, DOI: 10.1016/j.phytochem.2021.112666, http://zenodo.org/record/829216
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