Hybrid Evaluation Method for Dispatching Control Level of Smart Distribution Network

Yu‑Qian Wang,Leijiao Ge,Na Zhang 대한전기학회 2019 Journal of Electrical Engineering & Technology Vol.14 No.6

Smart distribution network (SDN) is an important part of smart grid (SG), and its dispatching control level is closely related to the safety and reliability of power system. In order to comprehensively and systematically evaluate the dispatching and control level of smart distribution network, this paper constructs an evaluation index system based on the considerations of reliability, economy, efectiveness, adaptability and cleanness. Taking into account the disadvantages of subjective weighting methods and the objective weighting methods, this paper puts forward a kind of subjective and objective mixed evaluation method for dispatching control level of SDN. In view of the great infuence of expert opinions of subjective weighting method and the high data dependence of objective weighting method, the binomial coefcient method of subjective weighting is combined with the multi-objective programming method of objective weighting to give weight to each index in the comprehensive evaluation index system of dispatching control level of SDN. Case studies verify the proposed method has great signifcance to the evaluation of the dispatching control level of SDN. It can efectively evaluate the dispatching level of SDN and provide a reference for the improvement of the dispatching control level of SDN.

Polyphenols of Rubus coreanum Inhibit Catecholamine Secretion from the Perfused Adrenal Medulla of SHRs

Byung-Sik Yu,Duck-Mi Na,Mi-Young Kang,Dong-Yoon Lim 대한생리학회-대한약리학회 2009 The Korean Journal of Physiology & Pharmacology Vol.13 No.6

The present study was attempted to investigate whether polyphenolic compounds isolated from wine, which is brewed from Rubus coreanum Miquel (PCRC), may affect the release of catecholamines (CA) from the isolated perfused adrenal medulla of the spontaneously hypertensive rats (SHRs), and to establish its mechanism of action. PCRC (20∼180Ռg/ml) perfused into an adrenal vein for 90 min relatively dose-dependently inhibited the CA secretory responses to ACh (5.32 mM), high K⁺ (56 mM), DMPP (100ՌM) and McN-A-343 (100ՌM). PCRC itself did not affect basal CA secretion (data not shown). Also, in the presence of PCRC (60Ռg/ml), the CA secretory responses to veratridine (a selective Na⁺ channel activator (10ՌM), Bay-K-8644 (a L-type dihydropyridine Ca²⁺ channel activator, 10ՌM), and cyclopiazonic acid (a cytoplasmic Ca²⁺-ATPase inhibitor, 10ՌM) were significantly reduced, respectively. In the simultaneous presence of PCRC (60Ռg/ml) and L-NAME (an inhibitor of NO synthase, 30ՌM), the inhibitory responses of PCRC on the CA secretion evoked by ACh, high K⁺, DMPP, and Bay-K-8644 were considerably recovered to the extent of the corresponding control secretion compared with that of PCRC-treatment alone. The level of NO released from adrenal medulla after the treatment of PCRC (60Ռg/ml) was greatly elevated compared with the corresponding basal level. Taken together, these results demonstrate that PCRC inhibits the CA secretion from the isolated perfused adrenal medulla of the SHRs evoked by stimulation of cholinergic receptors as well as by direct membrane-depolarization. It seems that this inhibitory effect of PCRC is mediated by blocking the influx of calcium and sodium into the adrenal medullary chromaffin cells of the SHRs as well as by inhibition of Ca²⁺ release from the cytoplasmic calcium store at least partly through the increased NO production due to the activation of NO synthase.

Energy storage capabilities of nitrogen-enriched pyropolymer nanoparticles fabricated through rapid pyrolysis

Yun, Young Soo,Kim, Yu Hyun,Song, Min Yeong,Kim, Na Rae,Ku, Kyojin,An, Ji Su,Kang, Kisuk,Choi, Hyoung Jin,Jin, Hyoung-Joon Elsevier 2016 Journal of Power Sources Vol.331 No.-

<P><B>Abstract</B></P> <P>Nanostructured pyropolymers contain significant amounts of redox-active heteroatoms, have high specific surface areas, and a defective carbon microstructure, indicating good potential for pseudocapacitive charge storage. In this study, nitrogen-enriched pyropolymer nanoparticles (N-PNs-50) are fabricated from polyaniline nanotubes through rapid pyrolysis at 50 °C min<SUP>−1</SUP>. N-PNs-50 exhibit a nitrogen content of 9.8 wt%, a high specific surface area of 875.8 m<SUP>2</SUP> g<SUP>−1</SUP>, and an amorphous carbon structure with an I<SUB> <I>D</I> </SUB>/I<SUB> <I>G</I> </SUB> intensity ratio of 0.95. These unique characteristics lead to good electrochemical performances, in which reversible capacities of 660 and 255 mAh g<SUP>−1</SUP> are achieved for Li-ion and Na-ion storage, respectively, with favorable voltage characteristics (<1.5 V for Li-ions and <1.2 V for Na-ions). This study provides a more feasible production method for nitrogen-doped pyropolymers and their practicable electrochemical performances for use as an anode in energy storage devices.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Nanostructured pyropolymers (N-PNs-50) were fabricated by rapid pyrolysis. </LI> <LI> N-PNs-50 exhibited a nitrogen content of 9.8 wt% and amorphous carbon structure. </LI> <LI> N-PNs-50 exhibited a high specific surface area of 875.8 m<SUP>2</SUP> g<SUP>−1</SUP>. </LI> <LI> 660 and 255 mAh g<SUP>−1</SUP> were achieved for Li-ion and Na-ion storage, respectively. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>Nitrogen-enriched pyropolymer nanoparticles (N-PNs-50) were fabricated from polyaniline nanotubes through rapid pyrolysis at 50 °C min<SUP>−1</SUP>, showing superior electrochemical performances.</P> <P>[DISPLAY OMISSION]</P>

어패럴 패턴구조에 관한 연구(3) : 각 부위별 벌어짐량을 중심으로 Focusing on broadening volume per each part

나미향,민유숙 청주대학교 학술연구소 2005 淸大學術論集 Vol.5 No.-

I have developed a human body into body surface shell in order to find out the characteristics when the dimensional shape of human body is developed on a plane. I have reviewed characteristics of pattern with broadened and folded surface of front, side, and back part shaped along with winding of a human body, I have come to the following result. 1. In light of a front section, there has been a change on a hip for a breast dart volume, upper breast dart volume, under breast No. 1 and 2 dart volume, and abdomen from the aspect of relation among breast volume and type, and breast inclination and structural of a hip. 2. In light of a side section, its pattern structure is classified into three types of folded type, broadened type, and collected type. A broadened type is for a big hip physical shape, folded type for small hip physical shape, and collected type for same gap between waist and hip or no such a gap. 3. In light of a back section, its pattern structure varies depending upon structural characteristics of bending degree; dart volume of rear shoulder was classified into three types of large, medium, and small. A structural pattern of dart volume of a hip on a back abdomen was classified into hip-protruding physical shape, common physical shape, small hip physical shape, and its shaping characteristics were observed in the presence of a type collected to three types, broadened type, and folded type.

初等學敎의 建築的 特性에 관한 硏究

나상훈,김유곤 서강대학 지역발전연구소 1999 지역발전연구 : 서강전문대 Vol.5 No.2

This study based upon theoretical contemplation has tried to analyze the composition of open school spaces of the elementary schools in Kwang-ju whose designs have been chosen by competition since 1990, and thereby to suggest both its problems and basic materials necessary for the construction of new type of school buildings. The results of this study are as follows: The school buildings are usually separated and arranged according to higher classes and lower classes, special classrooms and general classrooms, and classrooms and control offices. But there are usually pilots on the first floor, the other floors are connected directly and often there are arranged special rooms in connecting passages. School buildings, a gymnasium, and a play ground are common factors in every school. And there are small play grounds for lower class students or kindergarteners who have some difficulty in using play grounds, and these spaces are separated and arranged for higher class students, lower class students, and kindergarteners each. In many schools, the size of a unit classroom is the standard size of 67.5㎡. But it seems that a size of each unit classroom must be enlarged to utilize small spaces and to provide some spaces for open education.

서울·경기 일부지역 대학생의 Take-out Food 이용실태

유성은,한영실,주나미 한국조리과학회 2003 한국식품조리과학회지 Vol.19 No.5

This study was designed to identify the teke-out food usage of university students in Seoul and Gyeonggi-do. Questionnaires were used to analyze these habits among 500 respondents. 1. The Frequency of Take-Out Food use: the greatest proportion of students useds take-out foods once or twice a week (33.8%). 2. The reasons for Take-Out Food use: fastness was the major reason (47.8%). 3. The day of the week for Take-Out Food use: the majority of the students used Take-Out foods regardless of the day (54.4%). 4. The time of day for Take-Out Food use: 6~8 p.m. for 31.6%. 5. The cost spent in each meal: 51.6% spent 3,000 to under 5,000 won. 6. The menus of Take-Out Food used: coffee was the most popular of all the take-out foods (43.6%). 7. Points considered when buying Take-Out Food: the majority of the college students thought tastes and quality of the foods were the most important considerations (51.0%). 8. The source of information about Take-Out Food: 43.4% of the students obtained information from their friends.

어패럴 패턴구조에 관한 연구(2) : 앞ㆍ옆ㆍ뒤의 차를 중심으로 Focusing on gap between front,side, and back

나미향,민유숙 청주대학교 학술연구소 2004 淸大學術論集 Vol.4 No.-

I have manufactured body surface shell using a plastered body shape taken from a real body in order to identify characteristics of body parts based upon the basic torso pattern. After developed body surface shell, I have come to this result by analyzing the result developed into 3physical shape characteristics of front,side, and back. 1. Development of body surface shell As a result of developing body surface shell to find out pattern structure, front board in all experiences formed a breast part space due to breast protrusion centered by B.P., in particular, there was a great amount of space on the sectional side dart volume and down the breast line including down the front lining. On a back, a waist dart was form on perpendicular with arm-hole dart on protrusion part of the scapula (shoulder blade) and there was a dart volume formed on interscye too. 2. Ration and difference between front, back, and side Each circumference of the front, back, and side showed significance in the field of breast, under breast, waist, abdomen, and hip. In addition, the gap between front and back showed significance in the filed of under breast and a hip. Accordingly, when designing tight fit clothing, the distribution of front, back and side should be configured differently per section. Its ratio showed outstandingly differently. 3. Gap between front and back of the pattern The value of body surface development diagram showed significance in four parts other than hip in light of front and back difference. Accordingly, a hip has no gap between front and back, upper breast girth showed bigger shaper in back than front, but front showed bigger value in breast circumference, under breast girth, waist girth, and abdomen circumference.

갓김치에서 분리한 캡사이신-내성 세균,Leuconostoc mesenteroides GK-10의 생리활성

김유진,나예린,이현호,오계헌 순천향대학교 기초과학연구소 2021 순천향자연과학연구 논문집 Vol.27 No.1.2

The aim of this work was to investigate the physiological activities of capsaicin-resistant bacterium, Leuconostoc mesenteroides GK-10 isolated from fully fermented mustard leaf kimchi. Initially, the morphological, physiological and biochemical characteristics of strain GK-10 were examined. Based on phylogenetic analysis using 16S rRNA sequencing, the isolate was identified as L. mesenteroides GK-10 and phylogenetic tree of the strain was plotted. L. mesenteroides GK-10 grew well in the different concentrations of capsaicin (0-600 μg/mL). Various physiological activities (e.g., tyrosinase inhibitory activity, ACE inhibitory activity, antioxidant activity, SOD-like activity, depletion of sodium nitrite) of L. mesenteroides GK-10 cultures with different concentrations of capsaicin were evaluated and compared to the cultures of L. mesenteroides DK-3 as a standard strain. According to the results, all of the physiological activities evaluated in this work were considerably higher in L. mesenteroides GK-10 cultures with 600 μg/mL capsaicin compared to L. mesenteroides DK-3 cultures with the same capsaicin concentration, although the physiological activities of GK-10 were higher or lower compared to those of DK-3 in the absence of capsaicin. In consequence, this work showed that L. mesenteroides GK-10 strains can maintain their physiological activities despite the presence of high concentrations of capsaicin.

항정신병약물 악성증후군에서 말초신경병증을 보인 환자 1례

서유나,강철중 부산대학교 병원 암연구소 2009 부산대병원학술지 Vol.- No.25

Ga(III)-Porphyrin 착물을 촉매제로한 올레핀 산화반응

朴裕哲,羅勳吉,金聖洙 경북대학교 기초과학연구소 1994 慶北大學敎 基礎科學硏究所 硏究論文集 Vol.15 No.-