Browsing by Issue Date, starting with "2020-06"

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Energy Transformation Between the Inductor and the Power Transistor for the Unclamped Inductive Switching (UIS) Test
(2020-06-01)
Nidhi, Karuna
;
Lee, Jian-Hsing
;
Huang, Shao-Chang
;
Ker, Ming-Dou
;
交大名義發表
The fundamental model of energy transformation between the inductor and the power transistor for the unclamped inductive switching (UIS) test is inspected. Based on the experimental results, the energy stored in the inductor at the period of the channel turn-on can be dissipated by the power transistor after the channel is turned off. In this work, a new theoretical model to well describe the electrical and thermal behaviors of the power transistor during the unclamped inductive switching (UIS) test has been identified and analyzed with the experimental silicon results under different inductor values in 0.15 mu m BCD process. The total UIS energy reduced due to series resistance of the inductor and the power transistor has been theoretically explained and well matches with the experimental measured results on silicon.
陽明榮耀全紀錄
(國立陽明大學, 2020-06)
老鄧給個說法─受僱醫師系列(二)受僱醫師出了醫療糾紛，誰該負責？
(國立陽明大學牙醫校友會, 2020-06)
鄧政雄
Guaranteed-consensus posterior-aggregation fuzzy analytic hierarchy process method
(2020-06-01)
Chen, Tin-Chih Toly
;
工業工程與管理學系
;
Department of Industrial Engineering and Management
Current group decision-making fuzzy analytic hierarchy processes (FAHPs) have two major problems. First, inconsistent fuzzy pairwise comparison results, rather than compromised fuzzy weights, are aggregated. Second, a consensus among decision makers (DMs) cannot be guaranteed. To address these problems, in this study, the guaranteed-consensus posterior-aggregation FAHP (GCPA-FAHP) method was proposed. In the proposed methodology, the membership functions of the linguistic terms for performing fuzzy pairwise comparisons were designed to guarantee a consensus among the DMs and can be modified afterward to enhance the estimation precision. In addition, fuzzy intersection and center of gravity were used to aggregate and defuzzify the estimated fuzzy weights. The GCPA-FAHP method was applied to a real case to evaluate its effectiveness. The experimental results revealed that the GCPA-FAHP method guaranteed consensus among the DMs and improved the precision of estimating fuzzy weights.
Do family firms engage in voluntary external assurance of corporate social responsibility reports?
(國立交通大學經營管理研究所, 2020-06)
Chih-Wei Peng
越來越多公司自願性聘請獨立第三方機構進行企業社會責任報告書確信，以提高企業社會責任報告書的可信度。在發展中的國家，家族企業型態在國家經濟與社會發展演進過程扮演重要的角色。本研究以2009至2016年台灣家族企業為研究對象，手工蒐集家族企業社會責任報告書確信資料，分析家族企業與自願性企業社會責任報告書確信關連性。實證結果指出，相較於非家族企業，家族企業較沒有動機從事自願性企業社會責任報告書確信，此結論與傳統社會政治學或經濟學理論的預期相反。此外，當家族企業控制權與現金流量權偏離程度越高時，這類型家族企業比較不會從事自願性企業社會責任報告書確信行為；相反地，當家族企業設有獨立非執行董事時，這類型家族企業較會從事自願性企業社會責任報告書確信行為。最後，本文將討論家族企業對於從事自願性企業社會責任報告書確信決策之管理與實務意涵。
AI 系列報導Ⅱ：從無到有創作一個醫療物聯網
(國立陽明大學, 2020-06)
«科學人雜誌»
A model of parallel contests
(2020-06-01)
Juang, Wei-Torng
;
Sun, Guang-Zhen
;
Yuan, Kuo-Chih
;
經營管理研究所
;
Institute of Business and Management
We develop a model of two parallel contests, asymmetric in quantity of homogeneous prizes open to contest, with a finite number of homogeneous risk-neutral bidders. Whether the bidder upon entry into a particular contest is aware of the realized number of competing contestants in the contest is irrelevant to the expected effort at equilibrium. At equilibrium the expected effort per capita in the larger contest (the contest with more prizes) is greater than that in the smaller one. The larger contest nonetheless does not attract enough contestants to achieve optimum in rent extraction from the bidders.
走入屏東山地，看見偏鄉醫療現況
(國立陽明大學, 2020-06)
林宜靜
;
參訪團同學
How to prevent outbreak of a hospital-affiliated dementia day-care facility in the pandemic COVID-19 infection in Taiwan
(2020-06-01)
Huang, Hsuan-Ti
;
Chen, Tun-Chieh
;
Liu, Tzu-Yin
;
Chiu, Chun-Feng
;
Hsieh, Wen-Chien
Peculiar anatomic variation of recurrent laryngeal nerve and EMG change in a patient with right substernal goiter and pre-operative vocal cord palsy-case report
(2020-06-01)
Wang, Jia Joanna
;
Lu, I-Cheng
;
Chang, Pi-Ying
;
Wu, Che-Wei
;
Wang, Ling-Feng
We report a patient with right substernal goiter and preoperative vocal cord palsy (VCP). During dissection, an anatomic variation of the recurrent laryngeal nerve (RLN) and a prolonged EMG were detected by intraoperative neuromonitoring (IONM). Symmetrical vocal cord movement was recorded one month after surgery. The potential for recovery of vocal cord function is high after surgical treatment of a thyroid tumor with preoperative VCP. An IONM enables early localization of the RLN position. lb the best of our knowledge, this case of prolonged EMG in an abnormal acquired-ventral RLN trajectory is the first reported in the literature.
2020.11.15第十八屆陽明大學牙醫校友總會會員大會暨學術演講
(國立陽明大學牙醫校友會, 2020-06)
白勝方
;
高文愷
老鄧給個說法─受僱醫師系列(一)資料篇我做的病人並不就等於病人的一切就是我的，從受僱醫師談起
(國立陽明大學牙醫校友會, 2020-06)
鄧政雄
UAV-Assisted Wireless Charging for Energy-Constrained IoT Devices Using Dynamic Matching
(2020-06-01)
Su, Chunxia
;
Ye, Fang
;
Wang, Li-Chun
;
Wang, Li
;
Tian, Yuan
In the emerging Internet-of-Things (IoT) paradigm, the lifetime of energy-constrained devices (ECDs) cannot be ensured due to the limited battery capacity. In this article, unmanned aerial vehicles (UAVs) are served as carriers of wireless power chargers (WPCs) to charge the ECDs. Aiming at maximizing the total amount of charging energy under the constraints of the UAVs and WPCs, a multiple-period charging process problem is formulated. To address this problem, bipartite matching with one-sided preferences is introduced to model the charging relationship between the ECDs and UAVs. Nevertheless, the traditional one-shot static matching is not suitable for this dynamic scenario, and thus the problem is further solved by the novel multiple-stage dynamic matching. Besides, the wireless charging process is history dependent since the current matching result will influence the future initial charging status, and consequently, the Markov decision process (MDP) and Bellman equation are leveraged. Then, by combining the MDP and random serial dictatorship (RSD) matching algorithm together, a four-step algorithm is proposed. In our proposed algorithm, the local MDPs for the ECDs are set up first. Next, using the RSD algorithm, all possible actions can be presented according to the current state. Then, the joint MDP is built based on the local MDPs and all the possible matching results. Finally, the Bellman equation is utilized to select the optimal branch. Finally, simulation results demonstrate the effectiveness of our proposed algorithm.
Safety of Ligasure exact dissector in thyroidectomy with continuous neuromonitoring: a porcine model
(2020-06-01)
Huang, Tzu-Yen
;
Lin, Yi-Chu
;
Tseng, Hsin-Yi
;
Dionigi, Gianlorenzo
;
Kim, Hoon-Yub
Background: The purpose of this study was to investigate and define safety parameters for using the Ligasure exact dissector (LED) for dissection close to the recurrent laryngeal nerve (RLN) during thyroidectomy. Methods: Real-time electrophysiologic electromyographic (EMG) tracings were recorded in 16 RLNs (8 piglets) during various applications of LED under continuous intraoperative monitoring in this prospective porcine model study. In the activation study, LED was activated at varying distances from the RLN. In the cooling study, LED was activated with different cooling times or after touching the sternodeidomastoid muscle before application to the RLN. Results: In the activation study, no adverse EMG events occurred at distances longer than I rum. In the cooling study, no adverse EMG events occurred after a 2-second cooling time. Additionally, no adverse EMG events occurred when a sternodeidomastoid muscle touch maneuver was used for cooling. Conclusions: The LED can be safely used at distance of 1 mm or longer, and it should be cooled for at least 2 seconds or by muscle touch maneuver. Thyroid surgeons can avoid RLN injury if standard procedures for LED use are observed.
陽明與交大合併對牙醫學院未來發展影響之我見
(國立陽明大學牙醫校友會, 2020-06)
白勝方
Secret Image Sharing Revisited: Forbidden Type, Support Type, and Their Two Approaches
(2020-06-01)
Chao, Che-Yi
;
Lin, Ja-Chen
;
資訊工程學系
;
Department of Computer Science
In this paper, we introduce two new image-sharing types to extend the applicability of sharing. Type 1 is our so-called forbidden type. In its sharing system, any t of the n shares can recover the secret image, unless the t shares form a forbidden group listed in a forbidden list. Type 2 is our so-called cross-department support type. If a government has 3 departments {DEPH, DEPM, DEPL}, then 3 thresholds (t(H), t(M) and t(L)) exist. Any t(H) number of officers from department DEPH can unveil the secret image, and likewise for any t(M) and t(L) number of officers from departments DEPM and DEPL, respectively. Type 2 image sharing allows a secret to be disclosed not only in an intra-department meeting but also in a cross-department meeting. In this study, both types are implemented through two approaches: the polynomial and linear-equations approaches. Hackers can be confused when two approaches are mixed. As for the applications, use Type 1 to protect sensitive information in medical or military images or legal documents; and use type 2 to support cross-department crime investigation, industrial production, etc.
On the Impact of Electron Leakage on the Efficiency Droop for AlGaN Based Deep Ultraviolet Light Emitting Diodes
(2020-06-01)
Chu, Chunshuang
;
Tian, Kangkai
;
Che, Jiamang
;
Shao, Hua
;
Kou, Jianquan
In this work, we have investigated the origin of efficiency droop for AlGaN-based deep ultraviolet light-emitting diodes (DUV LEDs). We find that the efficiency droop is likely to be caused by the electron leakage for DUV LEDs studied in this work. The electron leakage arises from the unbalanced electron and hole injection efficiencies. The correlation between the efficiency droop and the electron leakage can be numerically calculated by manipulating the conduction band barrier height of the p-AlGaN electron blocking layer (p-EBL) for the proposed DUV LEDs. For the purpose of demonstrating that the efficiency droop for DUV LEDs can be experimentally decreased by reducing the electron leakage, a p(+)-GaN/In0.15Ga0.85N/n(+)-GaN tunnel junction on DUV LED is grown by using metal organic chemical vapor deposition (MOCVD) technology. The tunnel junction helps to enhance the hole injection, thus decreasing the electron leakage and the efficiency droop. Moreover, the parasitic emission in the p-type hole injection layer is no longer observed thanks to the decreased electron leakage level.
Angle-of-Arrival (AOA) Visible Light Positioning (VLP) System Using Solar Cells With Third-Order Regression and Ridge Regression Algorithms
(2020-06-01)
Hong, Chong-You
;
Wu, Yu-Chun
;
Liu, Yang
;
Chow, Chi-Wai
;
Yeh, Chien-Hung
We put forward and demonstrate a angle-of-arrival (AOA) based visible-light-positioning (VLP) system using quadrant-solar-cell (QSC) and third-order ridge regression machine learning (RRML) to improve the positioning accuracy.
AI 系列報導Ⅲ：創新科技輔具
(國立陽明大學, 2020-06)
«科學人雜誌»
編輯的話
(國立陽明大學牙醫校友會, 2020-06)
鄭俊東