35,486 research outputs found
Purification and Cloning of an Endogenous Protein Inhibitor of Carp Nephrosin, an Astacin Metalloproteinase
No full textsj-pdf-1-ajs-10.1177_03635465221149993 – Supplemental material for Platelet-Rich Fibrin–Augmented Gap-Bridging Strategy in Rabbit Anterior Cruciate Ligament Repair
No full textSupplemental material, sj-pdf-1-ajs-10.1177_03635465221149993 for Platelet-Rich Fibrin–Augmented Gap-Bridging Strategy in Rabbit Anterior Cruciate Ligament Repair by Pei-Wei Weng, Chih-Hwa Chen, Yi-Cheng Lin, Kuan-Hao Chen, Yi-Yen Yeh, Jen-Ming Lai, Chang-Jung Chiang and Chin-Chean Wong in The American Journal of Sports Medicine</p
supplemental_Table – Supplemental material for Risk and protective factors for adolescents’ illicit drug use: A population-based study
No full textSupplemental material, supplemental_Table for Risk and protective factors for adolescents’ illicit drug use: A population-based study by Jung-Yu Liao, Chiu-Mieh Huang, Charles Tzu-Chi Lee, Hsiao-Pei Hsu, Chiu-Ching Chang, Che-Jen Chuang and Jong-Long Guo in Health Education Journal</p
sj-pdf-1-tmj-10.1177_03008916211039018 – Supplemental material for Delta-volume radiomics of induction chemotherapy to predict outcome of subsequent chemoradiotherapy for locally advanced hypopharyngeal cancer
No full textSupplemental material, sj-pdf-1-tmj-10.1177_03008916211039018 for Delta-volume radiomics of induction chemotherapy to predict outcome of subsequent chemoradiotherapy for locally advanced hypopharyngeal cancer by Che-Wei Su, Jehn-Chuan Lee, Yi-Fang Chang, Nai-Wen Su, Pei-Hsuan Lee, Kun-Yao Dai, Hung-Chi Tai, Yi-Shing Leu and Yu-Jen Chen in Tumori Journal</p
The Relationships between Gender, Birth Order, Family Structure, Emotion, Creative Personalities and Technological Creativity of Fifth Graders
No full textThe Relationships between Gender, Birth Order, Family Structure, Emotion, Creative Personalities
and Technological Creativity of Fifth Graders
Pei-jen Chang
Abstract
The main purposes of this study were (a) to investigate the differences of fifth graders\ue2 performances on technological creativity in different induced moods; and (b) to explore the relationships between gender, birth order, family structure, emotional straits, creative personalities and the fifth graders\ue2 performances on technological creativity.
An unequal group pretest-posttest design was employed in this study. The participants consisted of 3 classes of fifth graders, randomly distributed into 3 groups: the experimental group A (n = 42) which received positive mood induction, the experimental group B (n = 33) which received negative mood induction, and the controlled group (n = 38) which didn\ue2t received any treatment.
The employed instruments were The Questionnaire of Emotional Traits, The Questionnaire of Emotional States, The Inventory of Personal Traits to The Development of Technological Creativity, and The Test of Technological Creativity. The applied analysis methods were Descriptives, Multiple Analysis of Variance, Multivariate Analysis of Covariance, and Canonical Correlation.
The findings and conclusions of this study were as follows:
1.Induced positive moods were a better facilitator for the fifth graders\ue2 performance on technological creativity than induced negative moods as well as neutral moods.
2.Positive emotional traits were able to promote the fifth graders\ue2 performance on the invention of creative products.
3.Gender differences in the fifth graders\ue2 technological creative performance were evident. While the boys\ue2 abilities to combine technological concepts were better than the girls\ue2, but their abilities to invent creative products were worse than the girls\ue2.
4.Birth order and family structure had no significant effects on the fifth graders\ue2 technological creative performance.
5.Personal traits had significant effects on the fifth graders\ue2 performance on the invention of creative products. Among all personal traits, \ue2knowledge\ue2 had the most significant effect on the fifth graders\ue2 technological creative performance.
6.Gender, birth order, family structure, mood, emotional traits, and creative personalities had significant correlations, and gender had the highest correlation with technological creativity of the fifth graders.
Finally, some suggestions were proposed for teachers, relative educational institutions, parents and further study
The application of PtFe alloy nanoparticle in counter electrode of dye-sensitized solar cell and their Shape-Dependent activity for triiodide reduction reaction
No full text染料敏化太陽能電池文獻中指出鉑金屬作為相對電極具有多種功用，其中最重要的是與電解液的交互作用中對碘的還原催化效果。因此，我們將鐵鉑合金粒子應用於染料敏化太陽能電池之相對電極改質，偵測鐵鉑合金對於I-/I3-的催化效果，並藉此達成鉑在相對電極使用量減少的目的，以降低染料敏化太陽能電池的材料成本。並與鉑金屬作為對電極的染料敏化太陽能電池比較，其能量轉換效率的表現有提升。此外，我們將金屬前驅物、有機界面活性劑加入油相中反應，經由多元醇還原之反應步驟合成奈米級鐵鉑合金粒子，利用有機界面活性劑對於合金晶面吸附能力的差異，以達到形狀控制的效果。由於粒子形狀的不同意指其裸露晶面不同例如: {111}, {100}及{311}面，進而影響對碘的還原催化效果。另外，再進一步調整金屬前驅物之比例，合成出形狀相同而比例不同的合金粒子。由於合金比例不同，給予電子的能力便不盡相同，這些皆會讓碘的還原催化效果有所差異，所以就針對合金的形狀與比例差異加以探討其碘還原催化活性的趨勢。Many papers had pointed out that the pure Pt counter electrode (CE) mainly played as a catalyst for the redox reaction of iodide/tri-iodide (I-/I3-) in dye-sensitized solar cells (DSSCs). For the first time, PtFe alloy nanoparticles were employed as the CE for DSSCs. The CV measurements demonstrated the electrocatalytic activity of PtFe nanoparticles in the I-/I3- redox reaction . Further, the J-V characteristics exhibited that PtFe alloy nanoparticles as CE for DSSCs achieved a good power conversion efficiency(7.37% for PtFe concave cube; 7.19% for PtFe polyhedron), closed to the performance of DSSCs using Pt CE (7.32%). In this study, various PtFe nanostructures enclosed by the different oriented surfaces, such as {111}, {100} and {311} facets, were prepared through the fine adjustment of specific surfactant-crystal facet binding. When PtFe nanostructures, including polyhedron, nanocube and concave cube, were employed as the CE for DSSCs, the photovoltaic results exhibited the shape-dependent activity in the I-/I3- redox reaction. Also, the controlled alloying composition of all PtFe nanostructures was able to influence the activity of I-/I3- redox reaction due to the change of electronic state of Pt. Finally, the shape- and composition-sensitivity of these PtFe nanostructures in terms of the I-/I3- redox activity were discussed in this study.謝誌--------------------------------------------------------------------------------------------------i
摘要-------------------------------------------------------------------------------------------------ii
目錄--------------------------------------------------------------------------------------------------iv
圖目錄---------------------------------------------------------------------------------------------vii
表目錄---------------------------------------------------------------------------------------------viii
第一章緒論-----------------------------------------------------------------------------------------1
1-1 奈米材料---------------------------------------------------------------------------------------1
1-2 製備奈米結構的方式------------------------------------------------------------------------2
1-2.1 化學氣相沉積法----------------------------------------------------------------------------2
1-2.2 氧化還原法----------------------------------------------------------------------------------2
1-2.3 水熱合成法----------------------------------------------------------------------------------3
1-3 奈米材料的結構與應用---------------------------------------------------------------------3
1-3.1 零維奈米結構-------------------------------------------------------------------------------4
1-3.2 一維奈米結構-------------------------------------------------------------------------------4
1-3.3 二維奈米結構-------------------------------------------------------------------------------4
1-4 催化---------------------------------------------------------------------------------------------6
1-5 染料敏化太陽能電池------------------------------------------------------------------------6
1-5.1 太陽能電池的發展史----------------------------------------------------------------------6
1-5.2 染料敏化太陽能電池電性測量----------------------------------------------------------7
1-5.3 染料敏化太陽能電池組成----------------------------------------------------------------8
1-5.4 染料敏化太陽能電池工作原理--------------------------------------------------------10
1-6 實驗動機---------------------------------------------------------------------------------------13
第二章實驗部分----------------------------------------------------------------------------------14
2-1 試藥與儀器----------------------------------------------------------------------------------14
2-1.1 試藥-----------------------------------------------------------------------------------------14
2-1.2 儀器-----------------------------------------------------------------------------------------15
2-2 儀器原理-------------------------------------------------------------------------------------16
2-2.1 穿透式電子顯微鏡-----------------------------------------------------------------------16
2-2.2 高解析穿透式電子顯微鏡--------------------------------------------------------------18
2-2.3 能量散布光譜儀--------------------------------------------------------------------------19
2-2.4 X-ray 繞射----------------------------------------------------------------------------------20
2-2.5 循環伏安法--------------------------------------------------------------------------------21
2-2.6 太陽光源模擬器--------------------------------------------------------------------------24
2-2.7 電化學阻抗譜-----------------------------------------------------------------------------24
2-2.8 光電流轉換效率測量儀-----------------------------------------------------------------25
2-3 合成與鑑定----------------------------------------------------------------------------------26
2-3.1 合成方法-----------------------------------------------------------------------------------26
2-3.2 合成PtFe cube----------------------------------------------------------------------------28
2-3.3 合成PtFe cubelike------------------------------------------------------------------------28
2-3.4 合成PtFe polyhedron---------------------------------------------------------------------28
2-3.5 TEM 及HRTEM 影像鑑定---------------------------------------------------------------29
2-3.6 EDS 鑑定與粒徑分布---------------------------------------------------------------------29
2-3.7 XRD 鑑定-----------------------------------------------------------------------------------34
第三章結果與討論-------------------------------------------------------------------------------37
3-1 配置與CV 圖譜的探討--------------------------------------------------------------------37
3-2 I-V 曲線圖的探討---------------------------------------------------------------------------39
3-2.1 對電極端製備-----------------------------------------------------------------------------39
3-2.2 二氧化鈦電極端製備--------------------------------------------------------------------39
3-2.3 電解液製備與封裝-----------------------------------------------------------------------40
3-2.4 測量與結果討論--------------------------------------------------------------------------40
3-3 IPCE 圖譜的探討----------------------------------------------------------------------------42
3-4 EIS 圖譜的探討------------------------------------------------------------------------------44
3-5 Tafel 圖譜的探討-----------------------------------------------------------------------------46
第四章總結----------------------------------------------------------------------------------------48
參考文獻-------------------------------------------------------------------------------------------48
附錄-------------------------------------------------------------------------------------------------5
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