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Hydrogen Generation from the Dissociation of Water Using Microwave Plasmas

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Chinese Physics Letters 2013年第6期30卷 144-147页

作者： Yong Ho jung soo Ouk Jang Hyun Jong You Plasma Technology Research Center National Fusion Research InstituteJeonbuk 573-540Korea

Hydrogen is produced by direct dissociation of water vapor,i.e.,splitting water molecules by the electrons in water plasma at low pressure(<10–50 Torr)using microwave plasma *** condition generates a high electron temperature,which facilitates the direct dissociation of water molecules.A microwave plasma source is developed,utilizing the magnetron of a microwave oven and a TE10 rectangular *** quantity of the generated hydrogen is measured using a residual gas *** electron density and temperature are measured by a Langmuir probe,and the neutral temperature is calculated from the OH line intensity.

关键词： microwave dissociation utilizing

Association of the neutrophil-to-lymphocyte ratio and prostate cancer detection rates in patients via contemporary multi-core prostate biopsy

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Asian Journal of Andrology 2016年第6期18卷 937-941页

作者： Jong Jin Oh Ohsung Kwon jung Keun Lee Seok-soo Byun Sang Eun Lee Sangchul Lee sung Kyu Hong Department of Urology Seoul National University Bundang Hospital Seongnam Korea.

The aim of this study was to determine whether the neutrophil-to-lymphocyte ratio （NLR）, a measure of the systemic inflammatory response is associated with the overall prostate cancer detection rate in men who underwent contemporary multi （〉12）-core transrectal ultrasound （TRUS） biopsy. We reviewed the records of 3913 patients with initial prostate-specific antigen （PSA） levels ranging from 4 to 10 ng ml^-1 who underwent TRUS-guided prostate biopsy between April 2006 and May 2014. NLR was calculated by prebiopsy neutrophil and lymphocyte counts. We excluded patients who had evidence of acute prostatitis, a history of prostate surgery, and any systemic inflammatory disease. A multivariate logistic regression model was used to analyze prostate cancer detection. After adjusting for confounding factors, predictive values were determined according to the receiver operating characteristic-derived area under the curve, both including and excluding the NLR variable. In univariate analyses, NLR was a significant predictor of prostate cancer detection （P 〈 0.001）. In multivariate analyses, a higher NLR was significantly associated with prostate cancer detection after adjusting for other factors （OR = 1.372, P = 0.038）. The addition of NLR increased the accuracy from 0.712 to 0,725 （P = 0.005） in the multivariate model for prostate cancer detection. NLR may be a potentially useful clinical marker in the detection of prostate cancer among men with a PSA level in the 4-10 ng ml^-1 range. These findings are derived from a retrospective analysis and should be validated in larger populations through prospective studies.

关键词： inflammation lymphocyte neutrophil prostate biopsy prostate cancer

Heterogenous responses to nivolumab in a single metastatic nodule in hepatocellular carcinoma: role of salvage surgery

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Hepatobiliary Surgery and Nutrition 2019年第5期8卷 569-571页

作者： Hyun Yang Pil soo sung Jaejun Lee Seung Kew Yoon Eun Sun jung Cheon-soo Park Si Hyun Bae The Catholic University Liver Research Center College of MedicineThe Catholic University of KoreaSeoulRepublic of Korea Department of Internal medicine College of MedicineEunpyeong St.Mary’s HospitalThe Catholic University of KoreaSeoulRepublic of Korea Department of Internal Medicine College of MedicineSeoul St.Mary’s HospitalThe Catholic University of KoreaSeoulRepublic of Korea Department of Hospital Pathology College of MedicineEunpyeong St.Mary’s HospitalThe Catholic University of KoreaSeoulRepublic of Korea Department of Surgery College of MedicineEunpyeong St.Mary’s HospitalThe Catholic University of KoreaSeoulRepublic of Korea

A recent report demonstrated immune heterogeneityof hepatocellular carcinoma(HCC)(1).The objectiveresponse rates of sorafenib-treated global and Asian patientsby nivolumab,the monoclonal antibody to programmedcell dea... 详细信息

关键词： hepatocellular nivolumab surgery

Porous FeS nanofibers with numerous nanovoids obtained by Kirkendall diffusion effect for use as anode materials for sodium-ion batteries

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Nano Research 2017年第3期10卷 897-907页

作者： jung Sang Cho Jin-sung Park Yun Chan Kang Department of Materials Science and Engineering Korea University Anam-Dong Seongbuk-Gu Seou1136-713 Republic of Korea Department of Engineering Chemistry Chungbuk National University Chungbuk 361-763 Republic of Korea

Porous FeS nanofibers with numerous nanovoids for use as anode materials for sodium-ion batteries were prepared by electrospinning and subsequent sulfidation. The post-treatment of the as-spun Fe（acac）3-polyacrylonitrile composite nanofibers in an air atmosphere yielded hollow Fe2O3 nanofibers due to Ostwald ripening. The ultrafine Fe2O3 nanocrystals formed at the center of the fiber diffused toward the outside of the fiber via Ostwald ripening. On sulfidation, the Fe2O3 hollow nanofibers were transformed into porous FeS nanofibers, which contained numerous nanovoids. The formation of porosity in the FeS nanofibers was driven by nanoscale Kirkendall diffusion. The porous FeS nanofibers were very structurally stable and had superior sodium-ion storage properties compared with the hollow Fe2O3 nanofibers. The discharge capacities of the porous FeS nanofibers for the Ist and 150th cycles at a current density of 500 mA.g-1 were 561 and 592 mA.h-g-1, respectively. The FeS nanofibers had final discharge capacities of 456, 437, 413, 394, 380, and 353 mA-h.g-1 at current densities of 0.2, 0.5, 1.0, 2.0, 3.0, and 5.0 A.g-1, respectively.

关键词： iron sulfide sodium-ion batteries Kirkendall effect nanofibers electrospinning

Younger patients have poorer biochemical outcome after radical prostatectomy in high-risk prostate cancer

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Asian Journal of Andrology 2011年第5期13卷 719-723页

作者： sung Kyu Hong jung soo Nam Woong Na Jong Jin Oh Cheol Yong Yoon Chang Wook Jeong Hyun June Kim Seok-soo Byun Sang Eun Lee Department of Urology Seoul National University Bundang Hospital Seongnam Kyunggi-do 463-707 Korea

The aim of this study was to investigate the prognostic significance of patient age with respect to tumour aggressiveness in men who underwent radical prostatectomy （RP） for prostate cancer. In this study, we reviewed the records of 743 patients who received RP without neoadjuvant or adjuvant therapy at our institution and were followed up for 〉2 years postoperatively. For our analyses, the patients were divided into two groups according to age： younger （〈60 years） and older （≥ 60 years）. Through uni- and multivariate analyses, associations of various clinicopathological parameters, including biochemical recurrence-free survival, with patient age, were evaluated among all patients, and the patients were stratified according to their D＇Amico risk classification. Among all subjects, younger （n= 126） and older （n=617） patients showed no significant differences regarding pathological parameters and biochemical recurrence-free survival （P=0.288）. For the high-risk group （n= 206）, younger patients had a lower rate of biochemical recurrence-free survival following surgery than older patients （P=0.017）, despite the fact that no significant differences were observed regarding various known prognostic parameters between the two age groups. In addition, multivariate analysis revealed that age was an independent predictor of biochemical recurrence-free survival among the high-risk group （P=O.O03）. Our results showed that relatively younger patients have a comparable biochemical outcome compared with their older counterparts following RP performed for prostate cancer. However, among patients with high-risk disease, younger patients have a worse biochemical outcome following RP compared with older patients.

关键词： age factors biochemical outcome prostate prostatic neoplasms prostatectomy

Image Recognition Based on Deep Learning with Thermal Camera Sensing

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Computer Systems Science & Engineering 2023年第7期46卷 505-520页

作者： Wen-Tsai sung Chin-Hsuan Lin sung-jung Hsiao Department of Electrical Engineering National Chin-Yi University of TechnologyTaichung411030Taiwan Department of Information Technology Takming University of Science and TechnologyTaipei11451Taiwan

As the COVID-19 epidemic spread across the globe,people around the world were advised or mandated to wear masks in public places to prevent its spreading *** some cases,not wearing a mask could result in a *** monitor mask wearing,and to prevent the spread of future epidemics,this study proposes an image recognition system consisting of a camera,an infrared thermal array sensor,and a convolutional neural network trained in mask *** infrared sensor monitors body temperature and displays the results in real-time on a liquid crystal display *** proposed system reduces the inefficiency of traditional object detection by providing training data according to the specific needs of the user and by applying You Only Look Once Version 4(YOLOv4)object detection technology,which experiments show has more efficient training parameters and a higher level of accuracy in object *** datasets are uploaded to the cloud for storage using Google Colaboratory,saving human resources and achieving a high level of efficiency at a low cost.

关键词： Image recognition convolutional neural network YOLOv4 thermal camera sensing

Voice Guidance System for Color Recognition Based on IoT

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Computer Systems Science & Engineering 2023年第4期45卷 839-855页

作者： Wen-Tsai sung Guan-Rong Chen sung-jung Hsiao Department of Electrical Engineering National Chin-Yi University of TechnologyTaichung411030TaiwanChina Department of Information Technology Takming University of Science and TechnologyTaipei City11451TaiwanChina

We often need to identify the colors of such objects as buildings,clothing,photos,and traffic signs in everyday *** people cannot distinguish among such *** study proposes a method to help people,including colorblind people,identify *** establish a platform for color identification that is connected by the Internet of Things(IoT).The Espressif Systems 32(ESP32)single chip is connected to a Wi-Fi communication network to transmit data to the color identification *** system interface is displayed in the form of color code and color name *** speech synthesis module Speech Synthesizer Node 6288(SYN6288)is used to broadcast color-related *** there are many color conversion technologies in modern times,or other color recognition methods are not applicable to the guide-blind ***,the authors use the method of reading out color-related information to directly enable colorblind people to conveniently identify the colors of *** experiments:the accuracy of various colors,the accuracy of environmental impact,the comparison of the original sensing experiment and the effect of adding interference light sources,the time required for color sensing to identify various colors,and the interference test results of any color light source,it is proved that the research mentioned in this *** proposed method can not only improve the rate of recognition of the system in different environments,but can also accurately identify a variety of *** platform is integrated with the IoT to allow users to quickly monitor the displayed data.

关键词： Internet of Things color recognition SYN6288 ESP32

Patient-reported ejaculatory function and satisfaction in men with lower urinary tract symptoms/benign prostatic hyperplasia

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Asian Journal of Andrology 2018年第1期20卷 69-74页

作者： Min Chul Cho jung Kwon Kim Sang Hoon Song sung Yong Cho Sang Wook Lee soo Woong Kim Jae-Seung Paick Department of Urology Seoul National University Boramae Medical Center Seou107061 Korea Department of Urology Seoul National University College of Medicine Seoul 03080 Korea Department of Urology Asan Medical Center Seou105505 Korea Department of Urology Kangwon National University College of Medicine Chuncheon 24289 Korea

This study aimed to investigate perceived ejaculatory function/satisfaction before treatment for lower urinary tract symptoms （LUTS）/benign prostatic hyperplasia （BPH） and to identify associations between specific categories of ejaculatory dysfunctions （EjDs） and LUTS. A total of 1574 treatment-naive men with LUTS/BPH were included in this study. All patients underwent routine evaluation for LUTS/BPH including the International Index of Erectile Function and a 5-item questionnaire developed to assess ejaculatory volume/force/pain/satisfaction/latency time. Patients who had sexual intercourse over the past 4 weeks were classified as sexually active group. A total of 783 patients were categorized as sexually active group. Decreased ejaculatory volume and force were reported by 53.4% and 55.7% of 783 sexually active men, respectively, There was a strong correlation between ejaculatory volume and force. Ejaculatory pain/discomfort, premature ejaculation （PE）, and delayed ejaculation （DE） were reported in 41,0%, 16.3%, and 41.4% of the patients, respectively. Over 40.0% of men without decreased ejaculation volume/force were satisfied with ejaculatory function, whereas approximately 6.0% of men with decreased volume/force were satisfied with ejaculatory function. About 30.0% of men with decreased volume/force had orgasmic dysfunction, while approximately 10.0% of men without decreased volume/force did. Decreased ejaculatory volume or force was associated with LUTS severity after adjusting for other influential factors including testosterone level, erectile function, and prostate size on ultrasonography, but PE or DE or ejaculatory pain/discomfort was not. In conclusion, a considerable portion of men with LUTS/BPH appear to have a variety of EjDs. Ejaculatory volume/force and satisfaction/orgasm do not always appear to be concordant. Ejaculatory volume or force is independently associated with LUTS severity, whereas PE or DE or ejaculatory pain/discomfort is not.

关键词： dysfunction ejaculation lower urinary tract symptoms (LUTS) satisfaction

Easy calibration method of vision system for in-situ measurement of strain of thin films

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中国有色金属学会会刊：英文版 2009年第B09期19卷 243-249页

作者： Jun-Hyub PARK Dong-Joong KANG Myung-soo SHIN sung-Jo LIM Son-Cheol YU Kwang-soo LEE Jong-Eun HA sung-Hoon CHOA Department of Mechatronics Engineering Tongmyong University School of Mechanical Engineering Pusan National University Department of Automotive Engineering Hoseo University Department of Automotive Engineering Seoul National University of Technology Department of Nano/IT Engineering Seoul N ational University of Technology

An easy calibration method was presented for in-situ measurement of displacement in the order of nanometer during micro-tensile test for thin films by using CCD camera as a sensing device. The calibration of the sensing camera in the system is a central element part to measure displacement in the order of nanometer using images taken with the camera. This was accomplished by modeling the optical projection through the camera lens and relative locations between the object and camera in 3D space. A set of known 3D points on a plane where the film is located on is projected to an image plane as input data. These points, known as a calibration points, are then used to estimate the projection parameters of the camera. In the measurement system of the micro-scale by CCD camera, the calibration data acquisition and one-to-one matching steps between the image and 3D planes need precise data extraction procedures and repetitive user's operation to calibrate the measuring devices. The lack of the robust image feature extraction and easy matching prevent the practical use of these methods. A data selection method was proposed to overcome these limitations and offer an easy and convenient calibration of a vision system that has the CCD camera and the 3D reference plane with calibration marks of circular type on the surface of the plane. The method minimizes the user's intervention such as the fine tuning of illumination system and provides an efficient calibration method of the vision system for in-situ axial displacement measurement of the micro-tensile materials.

关键词：标定方法视觉系统原位测试应变薄膜松