2,506 research outputs found
A comparison of failure load for zirconia-ceremics restorations with different zirconia/veneer thickness and cooling rate
Full text linkDept. of Dental Science/석사Objectives: The purpose of the current study was to evaluate the influence of different zirconia coping thicknesses and cooling rates on the failure load of zirconia crowns.
Methods: Forty identical abutment models were milled out of polymethylmethacrylate, and zirconia copings of two thicknesses (0.5 mm or 1.5 mm; n = 20 each) were fabricated using a dental computer-aided design and computer-aided manufacturing system. Zirconia crowns were completed by veneering feldspathic ceramics under different cooling rates (conventional or slow, n = 20 for each cooling rate), resulting four zirconia crown groups (n = 10 per group). Each crown was cemented on the abutment and 300,000 cycles of a 50-N load was applied on the crowns in conjunction with 1263 thermocyclings. After fatigue loading, a static load was applied on each crown until failure using a universal testing machine. The mean failure loads were statistically evaluated with one-way and two-way analysis of variance tests (p = 0.05).
Results: No cohesive or adhesive failure was observed after fatigue loading. The greatest mean failure load occurred in zirconia crowns that had 1.5-mm thick coping and had undergone slow cooling (p < 0.001). Furthermore, six of 10 crowns with the 1.5-mm thick coping in the slow cooling group showed coping fractures. However, no coping fractures occurred in the other groups.
Conclusions: Coping thickness and the cooling rate had a significant influence on the mean failure loads of the zirconia crowns. Under conventional cooling conditions, the mean failure load was not influenced by the coping thickness; however, under slow cooling conditions, the mean failure load was significantly influenced by the coping thickness.
Clinical significance: A thicker coping design or slow cooling after the final firing of the veneer ceramic would be beneficial in reducing the incidence of chipping failure in zirconia crowns. A thicker coping design with slow cooling is therefore recommended to minimize chipping failures.ope
A Broadband PHEMT MMIC Distributed Doubler Using High-Pass Drain Line Topology
No full textA broadband frequency doubler, based on distributed
amplifier techniques, has been designed to operate from
11 to 21 GHz. In order to reject the fundamental signal over a
broadband frequency range, the conventional low-pass drain line
structure was replaced with the high-pass structure. This topology
can suppress fundamental signals over broadband without any
balanced structure so that the chip size can be more compact.
Measured conversion losses of better than 10 dB from 11 to
21 GHz input frequencies are achieved with fundamental signal
rejection better than 12 dB. To the best of our knowledge, this is
the first demonstration of distributed doubler using the high-pass
drain line topology
The research "yu-sheng" word of the "Shuowen Jiezi"
No full text碩士 在許慎《說文》的文字釋例當中，一般多認為以「从某从某」、「从某某」說明的是會意字；以「从某某聲」說明的則是形聲字。然而，在《說文》當中卻另有一類用「从某某，某亦聲」、「从某从某，某亦聲」這樣術語說名的文字存在，這類文字，學者將之稱為「亦聲字」。對於這些亦聲字，歷來學者看法頗為不一，有認為應屬形聲者，也有認為應歸會意者，甚至有人以為可以兼入兩類，或是兩者皆不是。
本文即是對《說文》「亦聲字」的問題，做一全面討論的工作。在論文第一章，首先整理自南唐到近代歷來亦聲說凡二十九家，希望能夠明其大要及源流；論文第二章則是對大徐、小徐、段注三本《說文》所載之從其分不從其合的二百六十七個亦聲字作版本、聲韻、形義的全面分析。
最後，再用整理分析的結果，對主張亦聲不能存在、認為亦聲字是孳乳字、從六書四體尋求歸宿，以及另外立一個自己的標準來規範亦聲字等前人對於四大類意見提出一些討論。In the master work named Shuowen Jiezi(說文解字), we all think that “follow the equiform” means “hui-yi(會意)”. “As the Metre” explains the “xing-sheng(形聲)”. However, we can see special words like “Follow the equiform and as the Metre”. For these words, the researchers named it as “yu-sheng(亦聲)”. For these words, researchers don’t meet each other’s view. Someone says these should belong to “xing-sheng(形聲)” or “hui-yi(會意)”. Some researchers even thinks these words can put in or not classify into these 2 categorize.
For this paper, I wanna do a fully discuss about the problem of “Yu Sheng” of Shuowen Jiezi(說文解字). In the first chapter, I collect about 29 groups about Yu Sheng from Southern Tang, wish can understand the main organization and the lode. The Second Chapter is to analyze the version, metre, equiform from these xu-xuan(徐鉉) revises this master pieces, xu-kau(徐鍇) writes down the footnote of these papers, duan-yu-cai(段玉裁) revises this master pieces from Shuowen Jiezi(說文解字).
In the end of my paper, I want to use the result from these analyzed data. To discuss with these 4 groups of senior researchers who maintains “yu-sheng(亦聲) should not be existed”, “yu-sheng(亦聲) comes into being the Words transformation”, “categorized in The 4 categories before liu-shu(六書)”, and “create a new format to classify yu-sheng(亦聲)”.緒 論．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．１
第一章 諸家亦聲說述評．．．．．．．．．．．．．．．．．．．．．．．３
（一）南唐．徐鍇………………………………………………………………３
（二）宋．鄭樵…………………………………………………………………４
（三）清．張度…………………………………………………………………４
（四）清．段玉裁………………………………………………………………５
（五）清．桂馥…………………………………………………………………７
（六）清．嚴章福………………………………………………………………８
（七）清．王筠…………………………………………………………………９
（八）清．朱駿聲……………………………………………………………１０
（九）清．徐灝………………………………………………………………１０
（十）廖平……………………………………………………………………１２
（十一）章炳麟………………………………………………………………１２
（十二）朱宗萊………………………………………………………………１３
（十三）馬敘倫………………………………………………………………１４
（十四）蔣伯潛………………………………………………………………１４
（十五）王力…………………………………………………………………１５
（十六）高明…………………………………………………………………１５
（十七）弓英德………………………………………………………………１６
（十八）林尹…………………………………………………………………１７
（十九）日…白川靜…………………………………………………………１７
（二十）魯實先………………………………………………………………１９
（二十一）江舉謙……………………………………………………………１９
（二十二）龍宇純……………………………………………………………２０
（二十三）李國英……………………………………………………………２１
（二十四）施人豪……………………………………………………………２１
（二十五）許錟輝……………………………………………………………２２
（二十六）蔡信發……………………………………………………………２３
（二十七）王初慶……………………………………………………………２３
（二十八）劉煜輝……………………………………………………………２４
（二十九）金鐘讚……………………………………………………………２５
小 結…………………………………………………………………………２６
第二章 說文亦聲字試析．．．．．．．．．．．．．．．．．．．．．．２８
（一）《說文解字》第一篇之亦聲字………………………………………２８
（二）《說文解字》第二篇之亦聲字………………………………………３６
（三）《說文解字》第三篇之亦聲字………………………………………４５
（四）《說文解字》第四篇之亦聲字………………………………………６０
（五）《說文解字》第五篇之亦聲字………………………………………７０
（六）《說文解字》第六篇之亦聲字………………………………………７８
（七）《說文解字》第七篇之亦聲字………………………………………８３
（八）《說文解字》第八篇之亦聲字………………………………………９０
（九）《說文解字》第九篇之亦聲字………………………………………９８
（十）《說文解字》第十篇之亦聲字……………………………………１０３
（十一）《說文解字》第十一篇之亦聲字………………………………１１５
（十二）《說文解字》第十二篇之亦聲字………………………………１１９
（十三）《說文解字》第十三篇之亦聲字………………………………１２７
（十四）《說文解字》第十四篇之亦聲字………………………………１３５
小 結………………………………………………………………………１４６
第三章 《說文》亦聲字的歸類．．．．．．．．．．．．．．．．．．１５１
（一）對「亦聲說不能存在」之討論……………………………………１５１
（二）對以「文字孳乳現象來解釋亦聲現象」之討論…………………１５３
（三）對「在六書的『四體』 中尋求亦聲字歸屬」之討論…………１５６
（四）對「為亦聲字提出另一套新標準者」之討論……………………１５８
（五）亦聲字歸類與六書系統的關係……………………………………１６０
小 結………………………………………………………………………１６６
結 論．．．．．．．．．．．．．．．．．．．．．．．．．．．．．１６９
參考書目．．．．．．．．．．．．．．．．．．．．．．．．．．．．１７４
附 錄
（一）大徐、小徐、段注三本亦聲字對照表。
（二）徐鉉注亦聲字表
（三）徐鍇注亦聲字表
（四）段玉裁注亦聲字表
（五）徐鉉新附亦聲字表學號: 691000052, 學年度: 9
The political role of the people's liberation army 1949-1973
Full text linkThis thesis is to study the political role of the People's Liberation Army from the approach of structure and function. The framework of the thesis consists of three major parts, first, the influence of Chinese traditional political culture on, and the formation of, the political role of the PL A; second, the influence of domestic political struggles and external military conflicts on the development of the political role of the PLA; and the third, the analysis of the transition of the PLA's political role from the structure and personnel arrangements of the CCPCC Within the above-mentioned three scopes, this thesis make a thorough discussion on the following: (1) The relationship between the structure of the PRC and the formation of the PLA's political role; (2) How has ideology influenced the army's political role; (3) What is Mao's viewpoint and his influence on the development of the army's political role; (4) What is the link between the army and the party, and how has this developed; (6) What accounts for the expansion of the PLA's political functions; (7) What is the influence of political factional struggles on the PLA's political role; (8) Is it political institution or military institution that controls the recruitment of the military elite; (9) What are the disparities between the military elite in handling international conflicts and what are their political considerations; (10) What is the Party's position in the army; (11) How have the Party’s important meetings and personnel arrangements influenced the rise and fall of the PLA's political role
ALDH-positive lung cancer stem cells confer resistance to epidermal growth factor receptor tyrosine kinase inhibitors
No full textMolecular targeting therapeutics, such as EGFR tyrosine kinase inhibitors (TKIs), are important treatment strategies for lung cancer. Currently, the major challenge confronting targeted cancer therapies is the development of resistance. Cancer stem cells (CSCs) represent a rare population of undifferentiated tumorigenic cells responsible for tumor initiation, maintenance and spreading. Resistance to conventional chemotherapeutic drugs is a common characteristic of CSCs. However, the issue of whether CSCs contribute to EGFR TKI resistance in lung cancer is yet to be established. In the current study, we explored the association of ALDH1A1 expression with EGFR TKI resistance in lung cancer stem cells. ALDH1A1-positive lung cancer cells displayed resistance to gefitinib, compared to ALDH1A1-negative lung cancer cells. Moreover, PC9/gef cells (gefitinib-resistant lung cancer cells) presented a higher proportion of ALDH1A1-positive cells, compared to PC9 cells (gefitinib-sensitive lung cancer cells). Clinical sample studies were consistent with results from cell culture model systems showing that lung cancer cells with resistance to EGFR TKI and chemotherapy drugs contain significantly increased proportions of ALDH1A1-positive cells. These findings collectively suggest that ALDH1A1 positivity in cancer stem cells confers resistance to EGFR TKI in lung cancer. (C) 2012 Elsevier Ireland Ltd. All rights reserved
The Tsaoling landslide triggered by the Chi-Chi earthquake, Taiwan: Insights from a discrete element simulation
No full textSupplemental Material - MMP12 is a Potential Predictive and Prognostic Biomarker of Various Cancers Including Lung Adenocarcinoma
No full textSupplemental Material for MMP12 is a Potential Predictive and Prognostic Biomarker of Various Cancers Including Lung Adenocarcinoma by Guo-Sheng Li, Yu-Xing Tang, Wei Zhang, Jian-Di Li, He-Qing Huang, Jun Liu, Zong-Wang Fu, Rong-Quan He, Jin-Liang Kong, Hua-Fu Zhou, and Gang Chen in Cancer Control.</p
Supplemental Material - MMP12 is a Potential Predictive and Prognostic Biomarker of Various Cancers Including Lung Adenocarcinoma
No full textSupplemental Material for MMP12 is a Potential Predictive and Prognostic Biomarker of Various Cancers Including Lung Adenocarcinoma by Guo-Sheng Li, Yu-Xing Tang, Wei Zhang, Jian-Di Li, He-Qing Huang, Jun Liu, Zong-Wang Fu, Rong-Quan He, Jin-Liang Kong, Hua-Fu Zhou, and Gang Chen in Cancer Control.</p
Supplemental Material - MMP12 is a Potential Predictive and Prognostic Biomarker of Various Cancers Including Lung Adenocarcinoma
No full textSupplemental Material for MMP12 is a Potential Predictive and Prognostic Biomarker of Various Cancers Including Lung Adenocarcinoma by Guo-Sheng Li, Yu-Xing Tang, Wei Zhang, Jian-Di Li, He-Qing Huang, Jun Liu, Zong-Wang Fu, Rong-Quan He, Jin-Liang Kong, Hua-Fu Zhou, and Gang Chen in Cancer Control.</p
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