80 research outputs found
Física de nanoestructuras semiconductoras espectroscopia ultrarrápida
No full textIP 1204-05-10326ARTICULO(S) EN REVISTA: Theory of optical spectra of polarquantum wells :temperature effects / F.J.;Rodriguez. -- En: Physical review B. -- Vol. 64, 115316 (2001);p. 1-9. --Restrictions on the coherence of;the ultrafast optical emission from an electron-hole-paircondensate / A.Olaya Castro, F.J. Rodriguez, L.;Quiroga and C.Tejedor. -- En: Restrictions on the coherence ofthe ultrafast optical emission from an;electron-hole-pair condensate. -- Vol. 87, no. 24 (2001);p. 1-4. -- Decoherence of quantum register / John H.;Reina, Luis Quiroga and Neil Johnson. -- En: Physical review A.-- Vol. 65, 032326 (2002); p. 1-14. -- Quantum;information processing in semiconductor nanostructures / JohnHenry Reina,Luis Quiroga and Neil Johnson. --;En: arXiv : quant-ph / 0009035. -- Vol. 2 (sep. 2000); p.46388.'-- Quantumcoherence, correlated noise and;parrondo games / Chiu Fan Lee and Neil F. Johnson. -- En:arXiv: quant-ph/ 0210185. -- Vol. 1 (oct. 2002);p. 1-8. -- Ultrafast non-linear optical signal from a single quantum dot :exciton and biexciton effects;Ultrafast non-linear optical signal from a single quantumdot:exciton and biexciton effects / A. Reyes, F.J.;Rodriguez and L. Quiroga. -- En: arXiv : quant-ph / 0208588. --Vol. 1 (ago. 2002); p. 1-11. -- PONENCIA(S) EN;CONGRESO: Ultrafast optical coherence transfer from an electron-hole-paircondensate / L. Quiroga, A. Olaya;Castro, F.J. Rodriguez and C. Tejedor. -- p. 138. -- En: International conference on the physics of;semiconductors (26 : 2002 Jul. 29 - Aug. 2 : Edinburgh, Scotland, UK). --Edinburgh : Edinburgh International;Conference Centre, 2002. -- 28 cm. -- New optical signatures onthe ultrafast response of a single quantum dot;/ F.J. Rodriguez, L. Quiroga and N.F. Johnson. -- p. 222.'-- en:International conference on the physics of;semiconductors (26 : 2002 Jul. 29 - Aug. 2 : Edinburgh, Scotland, UK). --Edinburgh : Edinburgh International,;2002. -- 28 cm
Física de nanoestructuras semiconductoras espectroscopia ultrarrápida
No full textIP 1204-05-10326ARTICULO(S) EN REVISTA: Theory of optical spectra of polarquantum wells :temperature effects / F.J.;Rodriguez. -- En: Physical review B. -- Vol. 64, 115316 (2001);p. 1-9. --Restrictions on the coherence of;the ultrafast optical emission from an electron-hole-paircondensate / A.Olaya Castro, F.J. Rodriguez, L.;Quiroga and C.Tejedor. -- En: Restrictions on the coherence ofthe ultrafast optical emission from an;electron-hole-pair condensate. -- Vol. 87, no. 24 (2001);p. 1-4. -- Decoherence of quantum register / John H.;Reina, Luis Quiroga and Neil Johnson. -- En: Physical review A.-- Vol. 65, 032326 (2002); p. 1-14. -- Quantum;information processing in semiconductor nanostructures / JohnHenry Reina,Luis Quiroga and Neil Johnson. --;En: arXiv : quant-ph / 0009035. -- Vol. 2 (sep. 2000); p.46388.'-- Quantumcoherence, correlated noise and;parrondo games / Chiu Fan Lee and Neil F. Johnson. -- En:arXiv: quant-ph/ 0210185. -- Vol. 1 (oct. 2002);p. 1-8. -- Ultrafast non-linear optical signal from a single quantum dot :exciton and biexciton effects;Ultrafast non-linear optical signal from a single quantumdot:exciton and biexciton effects / A. Reyes, F.J.;Rodriguez and L. Quiroga. -- En: arXiv : quant-ph / 0208588. --Vol. 1 (ago. 2002); p. 1-11. -- PONENCIA(S) EN;CONGRESO: Ultrafast optical coherence transfer from an electron-hole-paircondensate / L. Quiroga, A. Olaya;Castro, F.J. Rodriguez and C. Tejedor. -- p. 138. -- En: International conference on the physics of;semiconductors (26 : 2002 Jul. 29 - Aug. 2 : Edinburgh, Scotland, UK). --Edinburgh : Edinburgh International;Conference Centre, 2002. -- 28 cm. -- New optical signatures onthe ultrafast response of a single quantum dot;/ F.J. Rodriguez, L. Quiroga and N.F. Johnson. -- p. 222.'-- en:International conference on the physics of;semiconductors (26 : 2002 Jul. 29 - Aug. 2 : Edinburgh, Scotland, UK). --Edinburgh : Edinburgh International,;2002. -- 28 cm
The clinical and microbiological characteristics of infections in burn patients from the Formosa Fun Coast Dust Explosion
No full textBackground/Purpose: Bloodstream infection is a leading cause of mortality among burn patients. This study aimed to evaluate the risk factors, causative pathogens, and the relationship between bloodstream infections and other infections among burn patients from the Formosa Fun Coast Dust Explosion. Methods: This retrospective study evaluated the demographic and clinical characteristics, infection types, causative pathogen(s), and isolates' antibiotic susceptibilities from patients who were hospitalized between June 27 and September 31, 2015. Results: Fifty-eight patients were admitted during the study period (36 males, mean age: 22.6 years). The mean burned total body surface area (TBSA) was 40% for all patients. Eighteen (31%) patients with mean TBSA of 80% had 66 episodes of bloodstream infections caused by 92 isolates. Twelve (18.2%) episodes of bloodstream infections were polymicrobial. Acinetobacter baumannii (19, 20.7%), Ralstonia pickettii (17, 18.5%), and Chryseobacterium meningosepticum (13, 14.1%) were the most common pathogens causing bloodstream infections. A high concordance rate of wound cultures with blood cultures was seen in Staphylococcus aureus (3, 75%) and C. meningosepticum (8, 61.5%) infections. However, no Ralstonia isolate was found in burn wounds of patients with Ralstonia bacteremia. A high concordance rate of central venous catheter cultures with blood cultures was noted in Ralstonia mannitolilytica (5, 62.5%) and Chryseobacterium indologenes (3, 60%) infections. Approximately 21.1% of A. baumannii strains were resistant to carbapenem. All S. aureus isolates were susceptible to methicillin. Conclusions: Waterborne bacteria should be considered in patients of burns with possible water contact. Empirical broad-spectrum antibiotics should be considered for patients who were hospitalized for severe sepsis, or septic shock with a large burn. Antibiotic treatment should be administered based on the specific pathogens and their detection points. Keywords: Burn injury, Bacteremia, Resistance, Gram-negative bacteria, Formosa Fun Coast Dust Explosio
Procalcitonin as a diagnostic biomarker for septic shock and bloodstream infection in burn patients from the Formosa Fun Coast dust explosion
No full textBackground/Purpose: Infection is the most common cause of death following burn injury. The study was conducted to compare the diagnostic value of serum procalcitonin (PCT) with the other current benchmarks as early predictors of septic shock and bloodstream infection in burn patients. Methods: We included 24 patients admitted to the Burn Unit of a medical center from June 2015 to December 2015 from the Formosa Fun Coast dust explosion. We categorized all patients at initial admission into either sepsis or septic shock groups. Laboratory tests including the worst PCT and C-reactive protein (CRP) levels, platelet (PLT), and white blood cell (WBC) count were performed at <48 h after admission. Patients were also classified in two groups with subsequent bacteremia and non-bacteremia groups during hospitalization. Results: Significantly higher PCT levels were observed among participants with septic shock compared to those with sepsis (47.19 vs. 1.18 ng/mL, respectively; p < 0.001). Patients with bacteremia had significantly elevated PCT levels compared to patients without bacteremia (29.54 versus 1.81 ng/mL, respectively, p < 0.05). No significant differences were found in CRP levels, PLT, and WBC count between the two groups. PCT levels showed reasonable discriminative power (cut-off: 5.12 ng/mL; p = 0.01) in predicting of bloodstream infection in burn patients and the area under receiver operating curves was 0.92. Conclusions: PCT levels can be helpful in determining the septic shock and bloodstream infection in burn patients but CRP levels, PLT, and WBC count were of little diagnostic value. Keywords: Procalcitonin, Septic shock, Bloodstream infection, Burn patient, Formosa fun coast dust explosio
Ultrasonically dispersed dyed water mists as a substitute for colored powders
No full textAbstractColored powders such as colored corn starch are used in events such as The Color Run to blanket the air and surroundings with decorative color. Their use, however, presents a risk of dust explosion. The fact that such powders are used at events drawing large crowds makes any fire or explosion likely to result in a mass casualty incident. For instance, the Formosa Fun Coast explosion on June 27, 2015, resulted in multiple deaths and injuries. Development of alternatives to flammable/explosive colored powders would eliminate this hazard. We demonstrate as a proof-of-concept that an ultrasonically driven water mist can produce effects similar to those created by colored powders. Food coloring was dissolved in water, and the colored water was subsequently dispersed from various ultrasonic devices and photographed. Colored clouds were formed from the colored water. Colored clouds were visible under various conditions, and color combinations were possible. Possible risks of colored corn starch and water mists are discussed. An ultrasonic misting system is capable of safely replacing colored powders with regard to appearance
Emotion finds a way to users from designers: assessing product images to convey designer's emotion
No full textAlong with a growing interest in emotional design and pleasurable products, it is necessary to understand how designers are able to maintain emotional impacts of their design solutions throughout the design process, and how these solutions can find a way to evoke the intended emotional feeling of the users. The present study first examined emotional responses to early design sketches, and how these responses could be used to check if the emotional impacts of their early sketches were observed in a combinative way of cognitive-linguistic and physiological approaches. Based on the findings of the empirical study, we further discussed how the emotional differences of product images would be generated by product forms. We figured out that good form factors of early design sketches might elicit positive feelings and high arousal states, thereby incorporating semantically meaningful features in the product images
A study of alumni's donational behavior
No full text碩士隨著台灣經濟環境的快速變遷、社會價值多元化，非營利組織在公共服務領域上越來越重要。因此如何籌措足夠的財源以完成社會任務與使命已成重大的課題。
本研究主要以淡江大學的校友的校友們為母體，並以淡江大學校友名冊進行便利抽樣。針對校友對母校的捐款行為進行實證分析，探討校友捐款給母校之意願與捐款的動機，在各種捐款動機下的捐款行為及捐款後行為的分析。此次發出問卷共七百份，回收問卷354份，有效問卷352份，回收率為50.57%。實證結果顯示：淡江大學校友們捐款時所考量的重要性排名，第一是「認同性」，第二是「利社會性」，第三是「利他性」，排名第四的則是「利己性」。至於未來的再捐款意願有高達68.7%的捐款者表示願意繼續捐款，而對學校的了解程度亦是影響捐款的重要因素但自認為了解學校發展方向的受訪者比率僅占47.6%，因此學校若希望能獲得校友們的捐款，勢必要再加強其相關宣導工作。
非營利機構為追求使命的達成及永續經營，如何規劃最具捐款意願、最便利的捐款方式，使偶發性的捐款者成為固定捐款者，小額捐款者成為主要捐款者，值得非營利機構募款規劃與經費籌措時參考。Abstract：
Accompanying with Taiwan’s fast economy development, society’s getting pluralistic, non-profit organizations become more important in field of public service. However, it is a high subject how to get sufficient funding sources in order to accomplish missions.
The reference of this research is mainly upon the alumni list of Tamkang university. The target survey is from the alumni of each convenience sample unit, attempting to inquire into society to discuss the key factors and behavioral patterns that affect the motives and activities of monetary donation. The survey sent out 700 paper questionnaires originally, 354 were recovered, and there are 352 valid questionnaires, account for 50.57% of the total recover of questionnaires.
The substantial evidence studies the result manifestation: The alumni of Tamkang university would like to contribute money to rank the consideration importance, the first is the “approbation and identification”, the second is “pro-social”, the third is “altruism” and the fourth is “self-interest”. According to the statistics, the intention for future donation also reached up to 68.7% and it’s said that the realization of the aims and developments of Tamkang university is a key element to donate. However, the percentages of those who understand the aims and the missions of Tamkang university only account for 47.6%. If Tamkang university hopes to acquire huge amount donation from the alumni, it is essential to reinforce the promotion campaign to guide such task.
In order to accomplish humanitarian missions and to go on running, the Tamkang university have to design the most convenient way for people to contribute, to make incidental donators become constant ones and the small-amount donators become the major ones. This research is valuable reference for non-profit organizations professional fun-raising planning and practice.目 錄
表目錄 iii
圖目錄 vi
第一章 緒論 1
第一節 研究背景與動機 1
第二節 研究目的 2
第三節 研究流程 3
第四節 論文架構 4
第二章 文獻探討 6
第一節 淡江大學簡介 6
第二節 捐款動機相關文獻 7
第三節 捐款決策過程相關文獻 17
第四節 影響捐款行為因素相關文獻 22
第五節 捐款行為實證研究相關文獻 32
第三章 研究方法 34
第一節 研究架構 34
第二節 研究假設 35
第三節 研究對象與調查方法 36
第四節 研究變數的定義與衡量 36
第五節 問卷設計 40
第六節 資料處理與統計方法分析 43
第四章 資料分析 45
第一節 樣本資料分析 45
第二節 描述性統計資料分析 49
第三節 信度及捐款動機集群分析 55
第四節 假說之檢定 60
第五節 基本資料分析 74
第五章 結論與建議 79
第一節 研究結論與貢獻 79
第二節 研究限制 84
第三節 未來研究及建議 84
參考文獻 85
附錄A問卷 90
附錄B 95
附錄C 96
表目錄
表2-1 人們決定捐款的原因 23
表2-2 人們決定不捐款的原因 24
表2-3 影響捐款意願/行為的知覺行為控制 29
表2-4 影響捐款行為的態度動機 31
表4-1 樣本資料分析 47
表4-2 對學校未來發展了解程度 47
表4-3 願意繼續捐款給學校 49
表4-4 勸募他人捐款給學校 50
表4-5 不曾捐款給學校 50
表4-6 平均每次捐款金額 51
表4-7 捐款指定用途 52
表4-8 較常使用捐款方式 53
表4-9 偏好募款方式 53
表4-10 捐款原因的平均分析 54
表4-11 關係維繫的平均分析 55
表4-12 最後集群中心點 57
表4-13 動機群組對四個捐款原因之ANOVA 57
表4-14 是否捐款段四個捐款原因之ANOVA及平均分析 59
表4-15 是否捐款對動機群組的交叉表分析 60
表4-16 動機群組對平均捐款金額交叉表 61
表4-17 動機群組對捐款有無指定用途交叉表 62
表4-18 母系所發展基金對動機群組複選交叉表 63
表4-19 母系所獎助獎金對動機群組複選交叉表 63
表4-20 現金捐款方式對動機群組複選交叉表 64
表4-21郵政捐款方式對動機群組複選交叉表 64
表4-22 信函式募款對動機群組複選交叉表 65
表4-23 義賣式募款對動機群組複選交叉表 65
表4-24 捐款動機與關係維繫Post Hoc檢定 66
表4-25 捐款頻次對關係維繫ANOVA 67
表4-26 捐款金額對關係維繫ANOVA 68
表4-27 是否指定用途對關係維繫ANOVA 69
表4-28 關係維繫對再捐款意願 70
表4-29 關係維繫對勸募他人意願 71
表4-30 人口統計對捐款動機卡方檢定 74
表4-31 曾經捐款與是否了解學校發展方向交叉表 75
表4-32 教育程度與曾經捐款在性別上的差異交叉表 76
表4-33曾經捐款與動機群組在性別上差異比較交叉表 77
表4-34 若事前宣導的捐款意願與家庭狀況交叉表 78
表5-1 研究假定結果 81
圖目錄
圖1-1 研究流程圖 4
圖2-1 受贈者與捐款人之間的社會交換關係模式 13
圖2-2 成本酬償理論簡圖 15
圖2-3 捐款者捐款決策過程圖 18
圖2-4 捐款者處理資訊的過程 19
圖2-5 影響捐款者決策的因素分析圖 21
圖2-6 影響捐款者行為的因素 25
圖3-1 研究架構 34學號: 795610012, 學年度: 9
International students (ca. 1982-1985)
No full textA group photograph of the international students of Springfield College from sometime between 1982-1985. As a consequence of SC President Locklin’s driving force in expanding the college's international scope through his development of programs in China, Japan, Hong Kong, Venezuela, Mexico, Nigeria, and Saudi Arabia, the photograph shows students from some of the countries with which President Locklin signed international exchange agreements. According to a separate paper found with the photograph, the following people were identified: Chan, Chee-Hiong, Eric (Malaysia); Chan, Hok-Yau, Sunny (Hong Kong); Chan, Sai-Lun, Stephen (Hong Kong); Chen, Yun-Ruei (China); Cheng, James (Taiwan); Chiu, Pui-Yin Selina (Hong Kong); Chu, Gar-Hon, John (Hong Kong); Cordoves, Jesus Rafael (Venezuela); Croes, Maureen (Aruba); de la Cruz, Pedro (Dominican Republic); De Souza, Mary Jane (Bermuda); Duffy, Patrick (Ireland); Duffy, O’Brien Jacinta (Ireland); Esmail, Yasmin (Kenya); Eston, Roger (England); Eston, Susan (England); Eynon, Robert (Canada); Fan, Kwok-Fai Steven (Hong Kong); Feng, Mei-Jun (China); Fry, Perry (Canada); Gaines, Ellen (Canada); Gargalianos, Dimitris (Greece); Gargalianos, Stamouli Maria (Greece); Grondin, Joseph (Canada); Hearn, Richard (Australia); Kwak, James (Hong Kong); Laios, Athanasios (Greece); Lam, Mui (Hong Kong); Lau, Sze-Man Simone (Hong Kong); Lee, Man-Wa Ivan (Hong Kong); Lin, Ming-Fun (Hong Kong); Lo, Amy (Hong Kong); Luo, Hua (China); Ma, Ning (China); McAdam, Vernon (Canada); Minigawa, Eiji (Japan); Mullen, Karen (Bermuda); Okudaira, Kazuyo (Japan); Olivares, Ivan (Venezuela); Oohashi, Toshiya (Japan); Palacios, Armando (Venezuela); Pieters-Kwier, Eugene (Curacao); Pimpa, Udom (Thailand); Rahmani, Ziad (Hong Kong); Ramos, Frank (Venezuela); Rodman, Chris (England); Santos, Maria (Azores, Portugal); Seki, Toyoichiro (Japan); Sinza, Omar Antonio (Venezuela); So, Ka yu (Hong Kong); Sokolowski, Michal (Canada); Tang, Shirley (Hong Kong); Troczynski, Les (Canada); Tsoi, Chuen Yan Peter (Hong Kong); Veale, Garry (Wales); Wakefield, Louise (Bermuda); and Wei; Mei Ngar (Hong Kong).A paper with all the names of the people in the photograph can be found with the physical copy of this item
Propulsion Dynamics Analysis of Gun/Waterjet Rocket
No full text摘 要
氣壓水箭是結合創意、趣味、運動、科學與環保而發展出來的一種兼具教育性與娛樂性之新興產品。探究其所以能夠在近年間迅速風行的原因，主要是其具備成本低廉、推進劑（水）與製作材料取得容易、可變化性大、能激發創造潛能等優點。近期在網路資訊及媒體報導中，可知氣壓水箭在形態設計上之多樣性，然而傳統理論由於缺乏總動力功率正確觀念及公式，而難以進行分析。在這方面以中興大學機械工程研究所動力實驗室之研究最為先進，我們融合李興軍所提出之拉氏雷諾輸送公式、動量方程式、火箭總動力功率、可用推進功率和推進功率等突破性觀念，作了一個較完整、清楚、自然且有系統的分析。本文中將以提高推進效率的方法來改進飛行性能，而以農夫插秧之概念發展出之砲式氣壓水箭，其原理乃利用發射座深入箭體內之中柱增加箭體之發射初期速度，從而提升其推進效率。進而聯立通化動量方程式及總動力公率公式，並以Matlab運用數值積分方法輪迴運算，來模擬砲式氣壓水箭之飛行過程，且巧妙地利用質量保守與絕熱等熵過程之理念，將複雜的內流場問題徹底解決，從數值模擬與實驗結果之飛行歷程與高度頗為接近可印證之。凡此皆證明本文理論與數值模擬之正確性及砲式氣壓水箭乃是印證火箭噴射理論之低成本的優良實驗工具，未來或可朝更多采多姿的無煙反坦克飛彈等各種科技用途上發展。Abstract
The gas-pressurized waterjet rocket is a new product characterized with originality, interest, exercise, science and environmental friendliness in addition to education and fun. Its recent popularity is due to minimal cost, easiness of acquiring the propellant ( air and water ) and changing design. News media show that there are various models of gas-pressurized waterjet rocket. Traditional theory is not good enough to analyze these cases, because it lacks proper concepts and equations of total kinetic power. In that respect, the dynamics laboratory of National Chung-Hsing University currently leads the advanced research trend. While take advantages of Lagrangian Reynolds transport equation, momentum equation, total kinetic power, available propulsion power, and thrust power, we can make a more complete, clear, natural and systematic analysis of waterjet rocket. In this research, we enhance flight performance by improving its propulsive efficiency. In that sense, we develop the gun/waterjet rocket by the idea of farmer transplanting rice seeds. It features a long rod extruding from launcher deep into the rocket mainbody to increase initial rocket velocity on launching. Further, we analyze the flight dynamic of gun/waterjet rocket by solving the momentum and total kinetic power equation simultaneously to predict the flight histogram, computationally, and convolutionally. In this approach, we thoroughly solve the complicated internal flow field with the aid of conservation laws and isentropic process. The analysis results are reasonably agreeable to the experimental flight data. Meanwhile it proves the correctness of our theory and numerical simulation. The gun/waterjet rocket is a good model with minimal cost for demonstrating propulsion theory, it may have the potential for propelling the smokeless antitank missile and associated technology in the future.目 錄
中文摘要 Ⅰ
英文摘要 Ⅱ
誌謝 Ⅲ
目錄 Ⅳ
圖表目錄 Ⅵ
符號說明 Ⅶ
第一章 緒論
1.1 研究動機 1
1.2 火箭簡史 2
1.3 水箭的推進原理 3
1.4 氣壓水箭之新風貌 4
第二章 火箭動力分析理論之回顧
2.1 火箭動量方程式之推導 8
2.2 火箭推進效率公式之推導 9
第三章 數值模擬之推導過程
3.1 數值計算式之推導 17
3.2 初始條件與內壓力變化的處理方法 24
3.3 水噴完後的處理技巧 27
3.4 氣壓水箭推進效率分析 29
3.5 水箭的空阻係數實驗 32
第四章 電腦模擬分析與試驗結果
4.1 數值模擬結果 34
4.2 飛行高度之量測方法 37
4.3 內爆型氣壓水火箭之製作 37
第五章 結論與展望 50
參考文獻 52
附錄一、砲式氣壓水箭之Matlab程式 54
附錄二、氣壓水箭之Matlab程式 58
作者簡介 6
The real-world use of regorafenib for metastatic colorectal cancer: multicentre analysis of treatment pattern and outcomes in Hong Kong
No full text- …
