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Analysis of interval constants in calendars affiliated with the Shoushili

Research in Astronomy and Astrophysics 2014年第4期14卷 485-496页

作者： Byeong-Hee Mihn ki-won lee Young Sook Ahn Advanced Astronomy and Space Science Division Korea Astronomy and Space Science Institute Department of Astronomy and Space Science Chungbuk National University Institute of Liberal Education Catholic University of Daegu

We study interval constants that are related to motions of the Sun and Moon, i.e., the Qi, Intercalation, Revolution and Crossing interval, in calendars affiliated with the Shoushi calendar （Shoushili）, such as Datongli and Chiljeongsannaepyeon. It is known that these interval constants were newly introduced in the Shoushili calendar and revised afterward, except for the Qi interval constant, and the revised values were adopted in later calendars affiliated with the Shoushili. We first investigate the accu- racy of these interval constants and then the accuracy of calendars affiliated with the Shoushili in terms of these constants by comparing times for the new moon and the maximum solar eclipse calculated by each calendar with modem methods of calcula- tion. During our study, we found that the Qi and Intercalation interval constants used in the early Shoushili were well determined, whereas the Revolution and Crossing interval constants were relatively poorly measured. We also found that the interval constants used by the early Shoushili were better than those of the later one, and hence better than those of Datongli and Chiljeongsannaepyeon. On the other hand, we found that the early Shoushili is, in general, a worse calendar than Datongli for use in China but a better one than Chiljeongsannaepyeon for use in Korea in terms of times for the new moon and when a solar eclipse occurs, at least for the period 1281 - 1644. Finally, we verified that the times for sunrise and sunset in the Shoushili-Li-Cheng and Mingshi are those at Beijing and Nanjing, respectively.

关键词： history and philosophy of astronomy: general -- celestial mechanics --ephemerides

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Molecular mechanisms of chemopreventive phytochemicals against gastroenterological cancer development

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World Journal of Gastroenterology 2013年第7期19卷 984-993页

作者： Min-Yu Chung Tae Gyu Lim ki won lee WCU Biomodulation Major Center for Food and BioconvergenceDepartment of Agricultural BiotechnologySeoul National UniversitySeoul 151-742South Korea Advanced Institutes of Convergence Technology Seoul National UniversitySuwon 443-270South Korea

Cancer is one of the leading causes of death *** used cancer treatments,including chemotherapy and radiation therapy,often have side effects and a complete cure is sometimes ***,prevention,suppression,and/or delaying the onset of the disease are *** onset of gastroenterological cancers is closely associated with an individual's ***,changing lifestyle,specifically the consumption of fruits and vegetables,can help to protect against the development of gastroenterological *** particular,naturally occurring bioactive compounds,including curcumin,resveratrol,isothiocyanates,(-)-epigallocatechin gallate and sulforaphane,are regarded as promising chemopreventive ***,regular consumption of these natural bioactive compounds found in foods can contribute to prevention,suppression,and/or delay of gastroenterological cancer *** this review,we will summarize natural phytochemicals possessing potential antioxidant and/or anti-inflammatory and anti-carcinogenic activities,which are exerted by regulating or targeting specific molecules against gastroenterological cancers,including esophageal,gastric and colon cancers.

关键词： Curcumin Resveratrol (-)-Epigallocatechin gallate Isothiocyanates Sulforaphane Gastroenterological cancers Molecular target

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Antistatic coating material consisting of poly (butylacrylate-co-styrene) core-nickel shell particle

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中国有色金属学会会刊：英文版 2009年第B9期19卷 119-123页

作者： Min-Yeong JEONG Byung-Yoon AHN Sang-Koul lee won-ki lee Nam-Ju JO Department of Polymer Science and Engineering Pusan National University Kumho Petrochemical Samsung Corning Precision Glass Division of Chemical Engineering Pukyong National University

A transparent and antistatic coating material consisting of polymer core-metal shell particle was prepared. As a polymer core, poly(butylacrylate-co-styrene)s ([P(BA-co-sty)s]) with various compositions of butylacrylate and styrene were synthesized by emulsion polymerization. And the effect of comonomer composition on the thermal property of polymer core particle was investigated. By electroless plating method, the nickel particles were formed and deposited on the surface of P(BA-co-Sty) particles to form P(BA-co-Sty) core-nickel shell composite particles. SEM observation confirms that the nickel particles with size of 15 nm are distributed on the surface of the polymer core particles. The surface resistance of P(BA-co-Sty) core-nickel shell composite is 0.8×108Ω/cm2, enough to act as antistatic coating material.

关键词：复合粒子涂层材料单体组成抗静电苯乙烯丁酯聚合物颗粒镍

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Polyaniline and multi-walled carbon nanotube composite electrode for rechargeable battery

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中国有色金属学会会刊：英文版 2012年第S3期22卷 717-721页

作者： Yu-Jeong LIM Min-Young PARK Sang-Keol lee won-ki lee Nam-Ju JO Department of Polymer Science & Engineering Pusan National University Hankook Tire Co.Ltd. Department of Polymer Engineering Pukyong National University

The multi-walled carbon nanotube was introduced into the polymer matrix (PANI) to improve the electric conductivity as well as mechanical properties of the original polymer ***/multi-walled carbon nanotube (MWCNT) composites were synthesized via ex-situ and in-situ polymerization to improve their electrical *** the DC conductivities of PANI/MWCNT according to content and diameter of MWCNT were measured by four-point *** highest electric conductivity of PANI/MWCNT composite is 20 S/cm when 0.3% (mass fraction) MWCNTs with 10 nm in diameter and 15 μm in length are added in composite.

关键词： polymer electrode electric conductivity multi-walled carbon nanotube conducting polymer

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Efficacy and safety of newly developed cross-linked dextran gel injection for glans penis augmentation with a novel technique

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Asian Journal of Andrology 2018年第1期20卷 80-84页

作者： Dae Yul Yang Kyungtae Ko Seong Ho lee Du Geon Moon Jong Wook kim won ki lee Department of Urology College of Medicine Hallym University Chuncheon Korea Department of Urology College of Medicine Korea University Seoul Korea.

There is no safe and effective standard method for glans penis augmentation. Furthermore, there has been scant research on glans penis augmentation due to a poor understanding of glans anatomy, technical difficulty, and a lack of suitable substances for augmentation. Cross-linked dextran gel is a newly developed filler for soft-tissue augmentation. We evaluated the efficacy and safety of using a novel technique to inject cross-linked dextran gel for glans penis augmentation during a 24-week follow-up study. This prospective, single-arm, multicenter study enrolled twenty healthy adult men who underwent glans penis augmentation between June and August 2013. Cross-linked dextran gel was injected into the glans penis using a simple and easy technique. The sizes of the glans penis and individual satisfaction were assessed. Any adverse event was also reported. A total of 18 individuals were analyzed; two of them were lost to follow-up. The mean procedure time and injected volume were about 30 rain and 6.6 ＋- 0.9 ml, respectively. The mean surface areas of the glans at baseline and 24 weeks were 20.0 _＋ 3.5 cm2 and 33.6 -＋ 5.4 cm2, respectively, representing a mean increase of 68.7% _＋ 14.0% （P 〈 0.001）. Sixteen individuals （88.9%） were satisfied with the outcomes, and none were dissatisfied. There were no serious adverse events during the study. Cross-linked dextran gel injection for glans penis augmentation was easy and showed a significant augmentative effect on the glans penis, good durability, and was well tolerated without serious adverse events. Therefore, cross-linked dextran gel injection may be an effective, new technique for glans penis augmentation.

关键词： cosmetic technique dermal fillers dextran glans penis

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The 5-year functional outcomes after radical prostatectomy： a real-life experience in Korea

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Asian Journal of Andrology 2010年第6期12卷 835-840页

作者： Sung Kyu Hong Seung Hwan Doo Dae Sung kim won ki lee Hong Zoo Park Ji Hyun Park Seong Jin Jeong Cheol Yong Yoon Seok-Soo Byun Sang Eun lee Department of Urology Seoul National University Bundang Hospital Seongnam Kyunggi-do 463-707 Korea

We investigated the functional outcomes regarding erectile function and urinary continence up to 5 years following radical prostatectomy （RP） in a cohort of Korean men. We retrospectively analyzed the clinicopathologic data of 85 Korean men who received open uni- or bilateral nerve-sparing RP for clinically localized prostate cancer and were followed up for at least 5 years postoperatively. From medical records, patients＇ status regarding urinary and erectile function at baseline and postoperative followups after RP was assessed. At 24 and 60 months after RP, proportions of subjects continent （no pads used） were 89.4% and 97.6%, respectively （P = 0.007）. Excluding subjects （n = 24） who preoperatively reported having severe erectile dysfunction or lacked relevant informations, proportions of subjects capable of having vaginal intercourse regardless of erectile aid usage were 47.5% and 37.7% at 24 and 60 months from RP, respectively （P = 0.022）. Patient＇s age at surgery （P = 0.047） and salvage radiation therapy （P = 0.026） were observed to be significant predictors of having erections sufficient for intercourse at 60 months from RP in multivariate analysis. Our results showed that while patients＇ postoperative status regarding urinary continence at 2 years from RP is generally maintained or improved at 5 year point, erectile function was observed to significantly declined from 2 years to 5 years following RP. Such decline in erectile function following RP may be more significant among men who were relatively older at surgery or those who received salvage therapy during postoperative follow-ups.

关键词： impotence prostatectomy prostatic neoplasm urinary incontinence

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The effects of the relationship between JIT,Management Accounting Information,and Facilitators of Learning on the Performance of Firms

The effects of the relationship between JIT,Management Accou...

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中国会计学会2012年学术年会

作者： won-ki lee Ran-Ju Seo Hyun-Il Park Min-Jung kim Department of Accounting InformationGyeongnam National University of Science and Technology Division of Accounting and TaxationCollege of Economics and Business AdministrationDaegu University Department of Business AdministrationKyungpook National University

In an effort to cope with the competitive environment,firms implement advanced manufacturing practices（AMP） such as TQM or ***,previous studies report mixed results about the effectiveness of these *** purpose of this study was to examine whether the complementarities between management accounting systems（MAS） and other factors affect the performance of the firm when JIT as AMP is introduced into *** achieve research purpose,this study analyzed data from Korean automobile part *** of this study show that there are positive correlations between AMP and MAS that provide information on performance goals and *** study has also provided considerable evidence that MAS has an influence on performance *** results are consistent with those of previous *** addition,this study has shown that complementarities in the usage levels of AMP,the features of the MAS,and the facilitators of learning have positive effects on *** of the research results can be summarized:（1） When firms adopt AMP,they must be aware that the currently established MAS alone cannot obtain information on non-financial achievements.（2） Providing only management accounting information may have limits in improving the performance of firms,other factors that can promote organizational learning within firms should also be utilized.（3） In designing and implementing MAS,complementarities between the new MAS and AMP must be maintained.

关键词： JIT Management accounting information Facilitators of learning Performance Korea

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Aloe-emodin suppresses prostate cancer by targeting the mTOR complex 2

Aloe-emodin suppresses prostate cancer by targeting the mTOR...

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中国病理生理学会第十三届肿瘤、第十四届免疫专业委员会学术会议

作者： Chanmi Park ki won lee Nak Kyun Soung Jong Seog Ahn Ann M.Bode Bo Yeon kim The World Class Institute and Chemical Biology Research Center Korea Research Institute of Bioscience and BiotechnologyOchangCheongwon363-883Republic of Korea The Hormel Institute University of MinnesotaAustinMinnesota55912USA Basic Medical College Zhengzhou UniversityZhengZhou450001China

Phosphoinositide 3-kinase(PI3-K.) amplification and phosphatase and tensin homolog(PTEN) deletion-caused Akt activation contributes to development of prostate *** target of rapamycin complex 2(mTORC2) is a kinase complex comprised of mTOR,Rictor,mSinl,mLST8/GpL and PRR5,and functions in the phosphorylation of Akt at *** we report that mTORC2 plays an important role in PC3 androgen refractory prostate cell proliferation and anchorageindependent ***-emodin,a natural compound found in aloe,inhibited both proliferation and anchorage-independent growth of PC3 *** content analysis suggested that activation of the downstream substrates of mTORC2,Akt and PKCa,were inhibited by aloe-emodin ***-down assay and in vitro kinase assay results indicated that aloe-emodin could bind with mTORC2 in cells and inhibit its kinase ***-emodin also exhibited tumor suppression effects in vivo in an athymic nude mouse ***,our data suggest that mTORC2 plays an important role in prostate cancer development and aloe-emodin suppresses prostate cancer progression by targeting mTORC2.

关键词： Aloe-emodin mTORC2 Akt prostate cancer chemoprevention

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In?uence of Carbon Equivalent Value on the Weld Bead Bending Properties of High-Strength Low-Alloy Steel Plates

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Journal of Materials Science & Technology 2017年第4期33卷 321-329页

作者： ki Hyuk kim In Jun Moon ki won kim ki Bong Kang Byung Gyu Park Kwang Seok lee R&D Center of Dongkuk Steel Mill Co. Ltd Pohang 790-729 South Korea Korea Institute of Materials Science Implementation Research Division Materials Deformation Department 797 Changwondaero Changwon Gyeongnarn642-831 South Korea

The contribution of chemical compositions in terms of carbon equivalent value（CEV） on impending crack propagation during weld bead bend tests（WBBTs） was studied with five different high-strength lowalloy steel plates that underwent different rolling processes. The test showed that cracks developed at the weld joint, easily passed through the coarse-grain heat-affected zone（CGHAZ）, and finally were arrested within the heat-affected zone（HAZ）. An apparent decrease in the average crack length, which consequently indicated improvement in crack arrestability, was found with decreasing CEV. In addition,the relatively fine microstructure in the HAZ of low-CEV steel plates helped in preventing the crack from further propagation. Special emphasis was placed on the empirical expectation of critical CEV above which WBBT might fail.

关键词： Mechanical characterization Steel Welding Fracture Crack arrestability against bending

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Fault area estimation using traveling wave for wide area protection

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Journal of Modern Power Systems and Clean Energy 2016年第3期4卷 478-486页

作者： Jae-won lee won-ki kiM Joon HAN won-Hyeok JANG Chul-Hwan kiM Department of Electrical and Computer Engineering Sungkyunkwan UniversitySuwonRepublic of Korea Daewoo Shipbuilding&Marine Engineering Co. Ltd.GeojeRepublic of Korea Electrical and Computer Engineering Department University of Illinois at Urbana-ChampaignChampaignILUSA

As the increasing number of Phasor Measurement Units(PMUs) are deployed, wide area protection in power systems has been gaining interest. In particular, fault detection, fault classification and fault area estimation are essential to reduce the damage of faults, and even prevent catastrophic cascades of failures. In this paper, we present a scheme for fault area estimation using PMUs and traveling wave theory. The purpose of this paper is to formulate a scheme for fault area estimation by calculating the approximate fault location based on traveling wave *** research has targeted at reliable operation of wide transmission system through the estimation of fault *** verify the suggested scheme, the various simulations are performed in practical Korean power transmission *** simulation results show that the proposed scheme has a good performance with high accuracy for estimating fault area.

关键词： Fault area estimation Phasor measurement unit(PMU) Transmission line system Traveling wave Wide area protection

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