Production , and Immobilization of D - amino - acylase of Alcaligenes for Optical Resolution N - acyl - DL - amino acids

Ying Chieh Tsai 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1992 한국미생물생명공학회 학술발표초록집 Vol.1992 No.2

A Looping Population Learning Algorithm for the Makespan/Resource Trade-offs Project Scheduling

Ying-Chieh Fang,Chiuh-Cheng Chyu 대한산업공학회 2009 Industrial Engineeering & Management Systems Vol.8 No.3

Population learning algorithm (PLA) is a population-based method that was inspired by the similarities to the phenomenon of social education process in which a diminishing number of individuals enter an increasing number of learning stages. The study aims to develop a framework that repeatedly applying the PLA to solve the discrete resource constrained project scheduling problem with two objectives: minimizing project makespan and renewable resource availability, which are two most common concerns of management when a project is being executed. The PLA looping framework will provide a number of near Pareto optimal schedules for the management to make a choice. Different improvement schemes and learning procedures are applied at different stages of the process. The process gradually becomes more and more sophisticated and time consuming as there are less and less individuals to be taught. An experiment with ProGen generated instances was conducted, and the results demonstrated that the looping framework using PLA outperforms those using genetic local search, particle swarm optimization with local search, scatter search, as well as biased sampling multi-pass algorithm, in terms of several performance measures of proximity. However, the diversity using spread metric does not reveal any significant difference between these five looping algorithms.

A study on microstructural and dielectric properties of Ba0.5-xZnxSr0.45Ca0.05TiO3 ceramics

Ying-Chieh Lee,Hui-Ju Hsu,I-Yu Huang,Huei-Jyun Shih,Christian Pithan 한양대학교 청정에너지연구소 2023 Journal of Ceramic Processing Research Vol.24 No.6

reaction process and sintered at temperatures ranging from 1150 °C to 1250 °C. The properties of these ceramics werefound to be significantly affected by variations in the Zn content. Densification of the BZSCT ceramics was observed to occurat sintering temperatures exceeding 1225 °C. Notably, the crystalline phases and dielectric properties of these ceramics werestrongly influenced by the Zn content. Three distinct secondary phases were identified in the BZSCT ceramics, includingBaZn2.03Ti3.93O10.89, Ba2ZnTi5O13 and Zn2TiO4. The addition of Zn resulted in a shift of the Curie point to lower temperatures. Specifically, with Zn substitution (up to 15 at.%), a Curie point of -60 °C was observed in the BZSCT ceramics. Theseceramics exhibited a high dielectric constant of 1035, a low dielectric loss of 0.017%, and an impressive Q value of 442 whensintered at 1225 °C. Moreover, when comparing the dielectric constants of BZSCT ceramics at 1 MHz and 1 GHz, it wasnoted that the permittivity was only slightly reduced by less than 30% at lower frequencies. In contrast, the permittivity ofBST ceramics decreased significantly, by approximately 70%, at microwave frequencies. These findings highlight the uniqueproperties and potential applications of BZSCT ceramics, particularly in microwave applications where they outperformtraditional BST ceramics.

A Looping Population Learning Algorithm for the Makespan/Resource Trade-offs Project Scheduling

Fang, Ying-Chieh,Chyu, Chiuh-Cheng Korean Institute of Industrial Engineers 2009 Industrial Engineeering & Management Systems Vol.8 No.3

Population learning algorithm (PLA) is a population-based method that was inspired by the similarities to the phenomenon of social education process in which a diminishing number of individuals enter an increasing number of learning stages. The study aims to develop a framework that repeatedly applying the PLA to solve the discrete resource constrained project scheduling problem with two objectives: minimizing project makespan and renewable resource availability, which are two most common concerns of management when a project is being executed. The PLA looping framework will provide a number of near Pareto optimal schedules for the management to make a choice. Different improvement schemes and learning procedures are applied at different stages of the process. The process gradually becomes more and more sophisticated and time consuming as there are less and less individuals to be taught. An experiment with ProGen generated instances was conducted, and the results demonstrated that the looping framework using PLA outperforms those using genetic local search, particle swarm optimization with local search, scatter search, as well as biased sampling multi-pass algorithm, in terms of several performance measures of proximity. However, the diversity using spread metric does not reveal any significant difference between these five looping algorithms.

Diffusion Tensor-Derived Properties of Benign Oligemia, True “at Risk” Penumbra, and Infarct Core during the First Three Hours of Stroke Onset: A Rat Model

Fang-Ying Chiu,Duen-Pang Kuo,Yung-Chieh Chen,Yu-Chieh Kao,Hsiao-Wen Chung,Cheng-Yu Chen 대한영상의학회 2018 Korean Journal of Radiology Vol.19 No.6

Objective: The aim of this study was to investigate diffusion tensor (DT) imaging-derived properties of benign oligemia, true “at risk” penumbra (TP), and the infarct core (IC) during the first 3 hours of stroke onset. Materials and Methods: The study was approved by the local animal care and use committee. DT imaging data were obtained from 14 rats after permanent middle cerebral artery occlusion (pMCAO) using a 7T magnetic resonance scanner (Bruker) in room air. Relative cerebral blood flow and apparent diffusion coefficient (ADC) maps were generated to define oligemia, TP, IC, and normal tissue (NT) every 30 minutes up to 3 hours. Relative fractional anisotropy (rFA), pure anisotropy (rq), diffusion magnitude (rL), ADC (rADC), axial diffusivity (rAD), and radial diffusivity (rRD) values were derived by comparison with the contralateral normal brain. Results: The mean volume of oligemia was 24.7 ± 14.1 mm3, that of TP was 81.3 ± 62.6 mm3, and that of IC was 123.0 ± 85.2 mm3 at 30 minutes after pMCAO. rFA showed an initial paradoxical 10% increase in IC and TP, and declined afterward. The rq, rL, rADC, rAD, and rRD showed an initial discrepant decrease in IC (from -24% to -36%) as compared with TP (from -7% to -13%). Significant differences (p < 0.05) in metrics, except rFA, were found between tissue subtypes in the first 2.5 hours. The rq demonstrated the best overall performance in discriminating TP from IC (accuracy = 92.6%, area under curve = 0.93) and the optimal cutoff value was -33.90%. The metric values for oligemia and NT remained similar at all time points. Conclusion: Benign oligemia is small and remains microstructurally normal under pMCAO. TP and IC show a distinct evolution of DT-derived properties within the first 3 hours of stroke onset, and are thus potentially useful in predicting the fate of ischemic brain.

취소, 소유권, 그리고 코먼로 (번역논문)

오영걸 ( Ying Chieh Wu ),William Swadling 고려대학교 법학연구원 2008 고려법학 Vol.0 No.50

신탁법상 수익자의 취소권 -패러다임 전환가능성을 위한 소고-

오영걸 ( Ying Chieh Wu ) 안암법학회 2012 안암 법학 Vol.0 No.38

This article questions the adequacy of rescission as a response to breaches of trust under Korean trusts law. When trustees dispose of trust assets in breach of trust, the beneficiary is entitled to rescind the disposition concluded by him (though the right to rescind is barred when someone who purchases the assets for value without notice of the breach). The argument here will be that it is hard to locate a theoretical justification for awarding rescission to the beneficiary under Korean law since he is only a holder of a personal right that only binds his obligor(i.e., his trustee). We can of course find two cases in which a personal right-holder is allowed to cancel the transaction entered into between others. The first case is Actio Pauliana in which the creditor can turn over the effect of the contract made between his obligor and third parties. The second case is parent`s right to rescind the contract made between his minor children and third parties. However, the former is only possible to be established under some stringent requirements and the latter is supported by a strong policy (i.e., protecting minors). But, as mentioned in the article, the beneficiary`s right to rescind neither requires strict conditions nor has a viable policy-based ground. Thus, the article concludes that the beneficiary`s right to rescind is an anomalous remedy. The article suggests that the deal transacted between the trustee and third party should be void. When we explore the following three cases that structurally resemble the case of breach of trust, the effect should be to make the transaction void rather than voidable. These cases are as follows: (1) when a partner disposes of partnership`s asset in breach of partnership`s constitution; (2) when a bankrupt disposes of his assets after he is declared bankrupt; (3) when a director disposes of company`s assets in breach of his powers. The article argues that the transaction concluded between the trustee and third party should also follow those cases and be treated as a void transaction. This would be a much more theoretically justified and practically plausible approach under the current law of trusts in Korea.

Using Carbonized Agricultural Waste to Reduce the Uptake of Some Chlorinated Contaminants into Crops

Chien-Ying Yang,Ying-Jie Chang,Sin-Yu Lan,Yu-Chieh Huang,Yang-Hsin Shih 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.6

리부트 - 대법원 2001. 7. 13. 선고 2001다9267 판결 -

吳英傑 ( Wu Ying-chieh ) 법조협회 2022 法曹 Vol.71 No.2

채무자회생계획이 인가될 경우에 채권자의 부동산담보신탁상 우선수익권의 운명은? 이에 관하여 채무자회생법 및 신탁법은 침묵하고 있다. 본고는 이 문제에 대한 최초의 판례, 즉 대법원 2001. 7. 13. 선고 2001다9267 판결을 다룬다. 판례에 따르면 채무자회생절차는 채권자의 우선수익권에 영향을 미치지 않는다. 왜냐하면 판례는 채권자의 우선수익권을 담보권으로 보지 않기 때문이다. 따라서 우선수익권으로 담보되는 채권을 회생담보권으로 파악하지 않는다. 이는 대법원 판례의 일관된 견해가 되었다. 이 문제에 대한 학설은 갈린다. 제1설(부정설)은 판례의 입장과 같다. 반대로 제2설(긍정설)은 채권자의 우선수익권으로 담보되는 채권을 회생담보권으로 해석한다. 채권자의 우선수익권을 변칙담보로 보기 때문이다. 그러므로 그것은 채무자회생절차에 구속된다. 결론적으로 판례입장(및 제1설)은 신탁의 구조적 원리에 반한다. 따라서 채택하기 어렵다. 그리고 제2설은 해석론의 한계를 넘었다. 따라서 재고의 여지가 있다. 요컨대 두 견해 모두 수긍하기 어렵다. 이 글의 주장은 다음과 같다. 부동산담보신탁상 채권자의 우선수익권은 채무자회생절차로부터 자유롭지 않다. 그렇다고 그것이 담보권이기 때문인 것은 아니다. 기존의 논의와 달리, 이를 해결해줄 실마리는 다른 곳에 있다. 그것은 바로 신탁본연의 구조원리, 채무자의 점유·사용수익권, 그리고 회생채권의 신고여부에 따른 효과에 있다. Once a trust is constituted, property held by the trustee no longer forms part of the settlor’s personal assets. This article examines whether this effect should be maintained if the settlor (i.e., the debtor) of a security trust is given a rehabilitation order by a court. If a debtor, as the settlor of a security trust, transfers his land to the trustee as security for his creditor, the debtor’s personal creditors would not be capable of recouping their debts from the land held by the trustee when the debtor falls into default and becomes bankrupt. The question arises as to whether this remains true if, instead of a bankruptcy order, a debtor rehabilitation order is given to the debtor (i.e., the settlor) by a court. The bankruptcy order and the debtor rehabilitation order are two distinct orders of the court designed to assist debtors in financial distress and to help them enjoy a fresh start. However, while the bankruptcy order aims to liquidate and distribute all the debtor’s assets to his creditors, the debtor rehabilitation order is designed to create a debt restructuring scheme that allows impecunious debtors to continue to operate their business so as to improve and restore their liquidity. The Supreme Court of the Republic of Korea has recognised that the asset-partitioning effect of security trusts should be maintained when the debtor has received a debtor rehabilitation order. However, it could also be argued that the immunity effect of security trusts should be circumscribed when a debtor rehabilitation order is made. Otherwise, the functioning of an efficient and workable debt restructuring scheme would become very difficult or nearly impossible. This article disagrees the Supreme Court’s position and argues that the subject matter of a security trust should be subject to the debtor rehabilitation order and form part of the debt restructuring scheme.

擬制信託(Constructive Trusts)의 理解

오영걸(Wu, Ying-Chieh) 한국비교사법학회 2011 비교사법 Vol.18 No.4

The main purpose of this work is to provide a proper understanding of the English law of constructive trust for the civil lawyer in Korea. The work introduces seven cases in which trust arises by operation of law under English legal system: those cases are as follows: Dispositions in Breach of Trust; Recipient Liability and Dishonest Assistance; Breach of No-Profit Rule; Acquisition of Property by Killing; Mutual Wills; Vendor-Purchaser Constructive Trust; When Settlor/Doner Has Done Everything He Can. Lawyers in civil jurisdictions normally consider the trust arising by operation of law as a trust relationship similar to a declared trust. The work argues that it is a misconception. In fact, considering that a beneficiary’s right is commonlyregarded as a proprietary right in its nature, imposition of a constructive trust in some English cases actually denotes the fact that a proprietary right is generated by operation of law in order to prevent some unjust consequences in individual cases. And, a constructive trust even arises sometimes when trust property never exists (i.e.,in cases involving dishonest assistance and knowing receipt); this tells us that the person called constructive trustee in those cases is actually not a person obliged to hold an asset on trust for another, thus, not a trustee at all; rather, he only owes a duty that requires him to make some monetary compensation to the beneficiary; and this obligation is established by operation of law. Therefore, lawyers in civil jurisdictions need not to conceptualize the English constructive trust as something corresponding to a declared trust: The reason it has been called constructive trust in England is due to its unique legal history that had divided its court system into common law court and equitable court. Since Korea and other civilian jurisdictions have not shared the same legal tradition and history, civil lawyers must grasp its underlying structure; it is a mechanism by which either a proprietary right or a personal right is created by operation of law.