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Handbook of financial analysis, forecasting, and modeling

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Handbook of financial analysis, forecasting, and modeling

Association of erectile dysfunction with depression in patients with chronic viral hepatitis

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作者： shim jae K.

来源：畅想之星图书光盘版（南... 评论

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World Journal of Gastroenterology 2015年第18期21卷 5641-5646页

作者： Bong Oh Ma Sang Goon shim Hae Jin Yang Department of Medicine Samsung Changwon Hospital Sungkyunkwan University School of Medicine Changwon-si 630-723 South Korea

AIM: To investigate the prevalence of erectile dysfunction(ED) and its association with depression in patients with chronic viral ***: This single center cross-sectional study was conducted from August 2013 through January 2014. All outpatients with chronic viral hepatitis in our liver clinic between 18 and 80 years of age were considered eligible for this study. The exclusion criteria included well-established causes of ED, such as diabetes, hypertension, hyperlipidemia, alcohol abuse, liver cirrhosis, ischemic heart disease, renal disease, neurologic disease, and malignancy. We also excluded the patients who had incompletely answered the questionnaires. ED was assessed using the validated Korean version of the International Index of Erectile Function(IIEF-5) scale. The Korean version of the self-administered Beck Depression Inventory(BDI) scale was used to assess depression in the patients. Demographic and medical data were obtained from the patients' medical records. Current or past history of psychiatric diagnosis and drug history including the use of an antiviral agent and an antidepressant were also recorded. RESULTS: A total of 727 patients met the initial eligibility criteria. Six hundred seventeen patients were excluded because their medical records contained one or more of the previously determined exclusion criteria. The remaining 110 patients were assessed based on the BDI and IIEF-5 questionnaires. Based on the IIEF-5 scale, the prevalence of ED among patients with chronic viral hepatitis was 40%. Compared with the non-ED group, patients in the ED group were older. The proportion of patients in the ED group who had a job or who were na?ve peg-interferon users was lower than that in patients in the non-ED group. Patients with ED had significantly lower scores on the IIEF-5 scale than patients without ED(11.75 ± 4.88 vs 21.33 ± 1.86, P = 0.000). Patients with ED rated significantly higher scores on the BDI scale compared with patients withou

关键词： Beck depression inventory Chronic viral hepatitis Depression Erectile dysfunction International Index of Erectile Function-5

Boosting electrocatalytic activity with the formation of abundant heterointerfaces and N, S dual-doped carbon nanotube for rechargeable Zn-air battery

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Journal of Energy Chemistry 2023年第9期84卷 140-152页

作者： Rin Na Kyeongseok Min Hyejin Kim Yujin Son Sang Eun shim Sung-Hyeon Baeck Department of Chemistry and Chemical Engineering Education and Research Center for Smart Energy Materials and ProcessInha UniversityIncheon 22212Republic of Korea

Herein,a facile synthetic strategy is proposed to fabricate high-performance electrocatalysts for rechargeable Zn-air batteries(ZABs).Heterostructured NiCo/NiCo_(2)S_(4) nanoparticles encapsulated in N-,S-co-doped CNT(NiCo/NiCo_(2)S_(4)@NSCNT) are synthesized via co-precipitation,thermal carbonization,and partial sulfidation *** strongly coupled NiCo/NiCo_(2)S_(4) heterostructure can improve the redox property and charge transfer ***,the CNTs with abundant foreign dopants provide high electrical conductivity and abundant defect sites for both the oxygen evolution reaction(OER) and oxygen reduction reaction(ORR).The prepared NiCo/NiCo_(2)S_(4)@NSCNT electrocatalyst exhibits a low overpotential of 349 mV at a current density of 10 mA cm-2 and a half-wave potential of 0.865 V for the OER and ORR,***,the ZAB assembled using as-prepared NiCo/NiCo_(2)S_(4)@NSCNT can provide superior specific capacity(756.16 mA h g_(Zn)^(-1)],peak power density(155.82 mW cm^(-2)),and long-term cyclability compared to those of the precious metal-based electrocatalyst(Pt/C+RuO_(2)).

关键词： Bifunctional electrocatalyst NiCo alloy Bimetallic sulfide Heterojunction Zinc–air battery

Road Damage Detection and Classification Using Mask R-CNN with DenseNet Backbone

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Computers, Materials & Continua 2020年第12期65卷 2201-2215页

作者： Qiqiang Chen Xinxin Gan Wei Huang Jingjing Feng H.shim School of Computer and Communication Engineering Zhengzhou University of Light IndustryZhengzhou450000China SIPPR Engineering Group Co. Ltd.Zhengzhou450000China College of Electronic and Electrical Engineering Sungkyunkwan UniversitySuwon440746Korea

Automatic road damage detection using image processing is an important aspect of road *** is also a challenging problem due to the inhomogeneity of road damage and complicated background in the road *** recent years,deep convolutional neural network based methods have been used to address the challenges of road damage detection and *** this paper,we propose a new approach to address those *** approach uses densely connected convolution networks as the backbone of the Mask R-CNN to effectively extract image feature,a feature pyramid network for combining multiple scales features,a region proposal network to generate the road damage region,and a fully convolutional neural network to classify the road damage region and refine the region bounding *** method can not only detect and classify the road damage,but also create a mask of the road *** results show that the proposed approach can achieve better results compared with other existing methods.

关键词： Road damage detection road damage classification Mask R-CNN framework densely connected network

Yet another tutorial of disturbance observer： robust stabilization and recovery of nominal performance

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Control Theory and Technology 2016年第3期14卷 237-249页

作者： Hyungbo shim Gyunghoon PARK Youngjun JOO Juhoon BACK Nam Hoon JO ASRI Department of Electrical and Computer Engineering Seoul National University Korea Department of Electrical Engineering and Computer Science University of Central Florida U.S.A. School of Robotics Kwangwoon University Korea Department of Electrical Engineering Soongsil University Korea

This paper presents a tutorial-style review on the recent results about the disturbance observer （DOB） in view of robust stabilization and recovery of the nominal performance. The analysis is based on the case when the bandwidth of Q-filter is large, and it is explained in a pedagogical manner that, even in the presence of plant uncertainties and disturbances, the behavior of real uncertain plant can be made almost similar to that of disturbance-free nominal system both in the transient and in the steady-state. The conventional DOB is interpreted in a new perspective, and its restrictions and extensions are discussed.

关键词： Disturbance observer robust stabilization robust transient response disturbance rejection

Impact of tumor location on clinical outcomes of gastric endoscopic submucosal dissection

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World Journal of Gastroenterology 2014年第26期20卷 8631-8637页

作者： Ji Young Yoon Choong Nam shim Sook Hee Chung Wan Park Hyunsoo Chung Hyuk Lee Sung Kwan Shin Sang Kil Lee yong Chan Lee Jun Chul Park Department of Internal Medicine Institute of GastroenterologyYonsei University College of Medicine

AIM: To determine whether there is a correlation between the location of the lesion and endoscopic submucosal dissection (ESD) outcome.

关键词： Endoscopic submucosal dissection Gastric neoplasm Location Complication Outcomes

Development of an Anthropomorphic Robotic Arm and Hand for Interactive Humanoids

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Journal of Bionic Engineering 2012年第2期9卷 133-142页

作者： Jamie K. Paik Bu Hyun Shin Young-bong Bang Young-Bo shim The Institute of Mechanical Engineering EPFL STI I G M UPPAIK BM 4118 （Bdtiment BM） Station 17 Switzerland Department of Mechanical Engineering Hanbat University Daejeon 305-719 South Korea Advanced Institutes of Convergence Technology Seoul National University Suwon-si Gyeonggi-do 443-270 South Korea Mechatronics and Manufacturing Technology Center Samsung Electronics Co Suwon-si Gyeonggi-do 443-742 South Korea

Humanoid robots are designed and built to mimic human form and movement. Ultimately, they are meant to resemble the size and physical abilities of a human in order to function in human-oriented environments and to work autonomously but to pose no physical threat to humans. Here, a humanoid robot that resembles a human in appearance and movement is built using powerful actuators paired with gear trains, joint mechanisms, and motor drivers that are all encased in a package no larger than that of the human physique. In this paper, we propose the construction of a humanoid-applicable anthropomorphic 7-DoF arm complete with an 8-DoF hand. The novel mechanical design of this humanoid ann makes it sufficiently compact to be compatible with currently available narrating-model humanoids, and to be sufficiently powerful and flexible to be functional; the number of degrees of freedom endowed in this robotic arm is sufficient for executing a wide range of tasks, including dexterous hand movements. The developed humanoid arm and hand are capable of sensing and interpreting incoming external force using the motor in each joint current without conventional torque sensors. The humanoid ann adopts an algorithm to avoid obstacles and the dexterous hand is capable of grasping objects. The developed robotic ann is suitable for use in an interactive humanoid robot.

关键词： humanoid arm humanoid hand human robot interaction safe robot arm and torque sensing

Cell membrane-derived vesicles for delivery of therapeutic agents

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Acta Pharmaceutica Sinica B 2021年第8期11卷 2096-2113页

作者： Quoc-Viet Le Jaiwoo Lee Hobin Lee Gayong shim Yu-Kyoung Oh College of Pharmacy and Research Institute of Pharmaceutical Sciences Seoul National UniversitySeoul 08826Republic of Korea School of Systems Biomedical Science Soongsil UniversitySeoul 06978Republic of Korea

Cell membranes have recently emerged as a new source of materials for molecular delivery *** membranes have been extruded or sonicated to make nanoscale *** synthetic lipid or polymeric nanoparticles,cell membrane-derived vesicles have a unique multicomponent feature,comprising lipids,proteins,and *** cell membrane-derived vesicles contain the intrinsic functionalities and signaling networks of their parent cells,they can overcome various obstacles encountered in ***,the different natural combinations of membranes from various cell sources expand the range of cell membrane-derived vesicles,creating an entirely new category of drug-delivery *** membrane-derived vesicles can carry therapeutic agents within their interior or can coat the surfaces of drug-loaded core *** membranes typically come from single cell sources,including red blood cells,platelets,immune cells,stem cells,and cancer ***,recent studies have reported hybrid sources from two different types of *** review will summarize approaches for manufacturing cell membrane-derived vesicles and treatment applications of various types of cell membrane-derived drug-delivery systems,and discuss challenges and future directions.

关键词： Cell membrane-derived vesicles Membrane engineering Drug-delivery systems Blood cells Immune cells Stem cells Cancer cells Manufacturing

Prediction of gas pulsation of an industrial compressor

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Journal of Central South University 2013年第10期20卷 2735-2740页

作者： Heuicheol Kim Mi-Gyung Cho jaehong Park Cheolho Bai jaesool shim School of Mechanical Engineering Yeungnam University Department of Media Engineering Tongmyong University MEMS-Bio Team Korea National NanoFab Center 305 806 Korea

The measurement and prediction of gas pulsations are performed along the discharge pipeline of a reciprocating compressor for a refrigerator. A regression based experimental model of the one-dimensional acoustic field is developed. First, the conventional method for gas pulsation measurement and prediction, which separates the incident and reflected wave of acoustic waves traveling in the frequency domain, is discussed. Then, regression based on our proposed simple model, which is able to predict gas pulsation compared to the conventional method, is introduced for the analysis of a reciprocating compressor(The conventional method requires the value of sound speed in the piping line for the reciprocating compressor). A numerical prediction is made for the regression method. Three power spectrum values along the discharge pipeline are used for analysis, and two values are used for verification. Our results are in a good agreement with the conventional method.

关键词： gas pulsation reciprocating compressor discharging piping line regression model