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Amylase level in extra hepatic bile duct in adult patients with choledochal cyst plus anomalous pancreatico-biliary ductal union

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World Journal of Gastroenterology 2005年第13期11卷 1965-1970页

作者： In-Ho Jeong Yong-Sik Jung Hong kim Bong-Wan kim Jung-Woon kim Jeong Hong Hee-Jung Wang Myung-wook kim Byung-Moo Yoo Jin-Hong kim Jae-Ho Han wook-hwan kim Department of Surgery Department of Gastroenterology Department of Pathology

AIM: To investigate the relationship between pancreatic amylase in bile duct and the clinico-pathological features in adult patients with choledochal cyst and anomalous pancreatico-biliary ductal union (APBDU).METHODS: From 39 patients who underwent surgery for choledochal cyst between March 1995 and March 2003,we selected 15 adult patients who had some symptoms and were radiologically diagnosed as APBDU, and their clinico-pathological features were subsequently evaluated retrospectively. However, we could not obtain biliary amylase in all the patients because of the surgeon's ***, we measured the amylase level in gall bladder of 10 patients and in common bile duct of 11 ***: Levels of amylase in common bile duct and gall bladder ranged from 11 500 to 212 000 IU/L, and the younger the patients, the higher the biliary amylase level (r= -0.982, P＜0.01). Pathologically, significant correlation was found between the size of choledochal cyst and the grade of inflammation (r= 0.798,P＜0.01). And, significant correlation was found between the level of amylase in gall bladder and the grade of hyperplasia. On the other hand, there was no correlation to the age of symptomatic onset or inflammatory grade (r = 0.743, P＜0.05). Level of lipase was elevated from 6 000 to 159 000 IU/L in bile duct and from 14 400 to 117 000 IU/L in the gall bladder;however, there was no significant correlation with age or clinico-pathological ***: The results support the notion that amylase has a particular role in the onset of symptoms, and suggest that a large amount of biliary amylase induces early onset of symptom, thereby making early diagnosis possible.

关键词： Choledochal cyst Anomalous pancreaticobiliary ductal union Amylase Hyperplasia

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Robotic cholecystectomy with new port sites

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World Journal of Gastroenterology 2013年第20期19卷 3077-3082页

作者： Ji Hun kim Nam Hyun Baek Guangyl Li Seung Hui Choi In Ho Jeong Jae Chul hwang Jin Hong kim Byung Moo Yoo wook hwan kim Departments of Surgery School of MedicineAjou UniversitySuwon 442-749South Korea Departments of Gastroenterology School of MedicineAjou UniversitySuwon 442-749South Korea

AIM:To introduce robotic cholecystectomy(RC) using new port sites on the low abdominal ***:From June 2010 to June 2011,a total of 178 RCs were performed at Ajou University Medical *** prospectively collected the set-up time(working time and docking time) and console time in all robotic ***:Eighty-three patients were male and 95 female;the age ranged from 18 to 72 years of age(mean 54.6 ± 15.0 years).All robotic procedures were successfully *** mean operation time was 52.4 ± 17.1 *** set-up time and console time were 11.9 ± 5.4 min(5-43 min) and 15.1 ± 8.0 min(4-50 min),*** conversion rate to laparoscopic or open procedures was *** complication rate was 0.6%(n = 1,bleeding).There was no bile duct injury or *** mean hospital stay was 1.4 ± 1.1 *** was a significant correlation between the console time and white blood cell count(r = 0.033,P = 0.015).In addition,the higher the white blood cell count(more than 10000),the longer the console ***:Robotic cholecystectomy using new port sites on the low abdominal area can be safely and efficiently performed,with sufficient patient satisfaction.

关键词： Robotic cholecystectomy Port sites Operation time Abdominal area Gallbladder disease

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Optimization of an Artificial Intelligence Database and Camera Installation for Recognition of Risky Passenger Behavior in Railway Vehicles

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Computers, Materials & Continua 2025年第1期82卷 1277-1293页

作者： Min-kyeong kim Yeong Geol Lee Won-Hee Park Su-hwan Yun Tae-Soon Kwon Duckhee Lee Railroad Test&Certification Division Korea Railroad Research Institute(KRRI)Cheoldo BangmulgwanroUiwang-si16105Republic of Korea Railroad Safety Division Korea Railroad Research Institute(KRRI)Cheoldo BangmulgwanroUiwang-si16105Republic of Korea

Urban railways are vital means of public transportation in *** than 30%of metropolitan residents use the railways,and this proportion is expected to *** enhance safety,the government has mandated the installation of closed-circuit televisions in all carriages by ***,cameras still monitored *** address this limitation,we developed a dataset of risk factors and a smart detection system that enables an immediate response to any abnormal behavior and intensive monitoring *** created an innovative learning dataset that takes into account seven unique risk factors specific to Korean railway *** data collection was conducted across the Shinbundang Line of the Incheon Transportation Corporation,and the Ui-Shinseol *** observed several behavioral characteristics and assigned unique annotations to *** also considered carriage *** performance was evaluated by camera placement and *** the camera installation plan was *** dataset will find immediate applications in domestic railway *** artificial intelligence algorithms will be verified shortly.

关键词： AI railway vehicle risk factor smart detection AI training data

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Double cystic duct without being aware of the anatomic anomaly during laparoscopic cholecystectomy: The first case of reverse Y type anomaly

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Hepatobiliary & Pancreatic Diseases International 2021年第2期20卷 201-202页

作者： Suhyun Lim Chang hwan kim Kwang Yeol Paik wook kim Department of Surgery Yeouido St.Mary’s HospitalCollege of MedicineThe Catholic University of Korea#1063-roYeongdeungpo-guSeoul 07345Korea

To the Editor:Variations in cystic duct anatomy are quite common,but double cystic ducts arising from one gallbladder is extremely rare,which have only been reported in less than 20 cases in literature[1–4].It is difficult to diagnose the anatomic anomaly preoperatively,and the rate of open conversion and post-operation complications were high due to ductal injury during surgery[2].

关键词： anatomy cystic gallbladder

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Photonic structures in radiative cooling

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Light(Science & Applications) 2023年第7期12卷 1187-1215页

作者： Minjae Lee Gwansik kim Yeongju Jung Kyung Rok Pyun Jinwoo Lee Byung-wook kim Seung hwan Ko Applied Nano and Thermal Science Lab Department of Mechanical EngineeringSeoul National University1 Gwanak-roGwanak-guSeoul 08826South Korea Electronic Device Research Team Hyundai Motor Group37Cheoldobangmulgwan-roUiwang-siGyeonggi-do 16082South Korea E-drive Materials Research Team Hyundai Motor Group37Cheoldobangmulgwan-roUiwang-siGyeonggi-do 16082South Korea Department of Mechanical Robotics and Energy EngineeringDongguk University30 pildong-ro 1-gilJung-guSeoul 04620South Korea. Department of Civil Engineering and Engineering Mechanics Columbia UniversityNew YorkNY 10027USA. Institute of Advanced Machinery and Design(SNU-IAMD)/lnstitute of Engineering Research Seoul National University1 Gwanak-roGwanak-guSeoul 08826South Korea

Radiative cooling is a passive cooling technology without any energy consumption,compared to conventional cooling technologies that require power sources and dump waste heat into the *** decades,many radiative cooling studies have been introduced but its applications are mostly restricted to nighttime use ***,the emergence of photonic technologies to achieves daytime radiative cooling overcome the performance *** example,broadband and selective emissions in mid-IR and high reflectance in the solar spectral range have already been *** review article discusses the fundamentals of thermodynamic heat transfer that motivates radiative *** photonic structures such as multilayer,periodical,random;derived from nature,and associated design procedures were thoroughly *** integration with new functionality significantly enhances the effciency of radiative cooling technologies such as colored,transparent,and switchable radiative cooling applications has been *** commercial applications such as reducing cooling loads in vehicles,increasing the power generation of solar cells,generating electricity,saving water,and personal thermal regulation are also ***,perspectives on radiative cooling and emerging issues with potential solution strategies are discussed.

关键词： radiative overcome transparent

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Fabrication of SiC_p/AA5083 composite via friction stir welding

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中国有色金属学会会刊：英文版 2012年第S3期22卷 634-638页

作者： Byung-wook AHN Don-Hyun CHOI Yong-hwan kim Seung-Boo JUNG School of Advanced Materials Science and Engineering Sungkyunkwan University

Microstructure and mechanical properties of SiCp /AA5083 composite fabricated by friction stir welding (FSW) were *** influence of the number of FSW passes on the distribution of SiC particles and mechanical properties in the joint was *** one pass,the SiC particles were entangled in the upper side of the stir zone (SZ).However,the particle distribution became more uniform after two passes due to the repeated stirring of the *** the SiC particles facilitate the grain refinement in the SZ by the pinning effect,the particle including region has much smaller grain size than the SZ without SiC *** SiCp /AA5083 composite region exhibits a Vickers hardness of HV90,which is much higher than the value of HV80 in the SZ produced by FSW without SiC particles.

关键词： metal matrix composite SiC particle friction stir welding mechanical property

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Microstructures and Mechanical Properties of Rapidly Solidified Mg-Al-Zn-MM Alloys

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Journal of Materials Science & Technology 2008年第1期24卷 89-92页

作者： Yeon-wook kim Department of Advanced Materials Engineering Keimyung University Daegu 704-701Korea

Mg-Al-Zn-M M （misch metal） alloy powders were manufactured by inert gas atomization and the characteristics of alloy powders were *** spite of the low fluidity and easy oxidation of the magnesium melt,the spherical powder was made successfully with the improved three piece nozzle systems of gas atomization unit. It was found that most of the solidified powders with particles size of less than 50μm in diameter were single crystal and the solidification structure of rapidly solidified powders showed a typical dendritic morphology because of supercooling prior to *** spacing of secondary denrite arms was deceasing as the size of powders was *** rapidly solidified powders were consolidated by vacuum hot extrusion and the effects of misch metal addition to AZ91 on mechanical properties of extruded bars were also *** extrusion of the rapidly solidified powders,their dendritic structure was broken into fragments and remained as grains of about 3μm in *** Mg-Al-Ce intermetallic compounds formed in the interdendritic regions of powders were finely broken,*** tensile strength and ductility obtained in as-extruded Mg-9 wt pct Al-1 wt pct Zn-3 wt pct MM alloy wereσ-（T.S.） =383 MPa andε=10.6%,*** of these improvements on mechanical properties were resulted from the refined microstructure and second-phase dispersions.

关键词： Mg alloy Gas atomization Misch metal Hot extrusion

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Arthroscopic treatment of iliopsoas tendinitis after total hip arthroplasty with acetabular cup malposition: Two case reports

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World Journal of Clinical Cases 2020年第21期8卷 5326-5333页

作者： Heejae Won Kwang-hwan kim Jae-wook Jung Shin-Yoon kim Seung-Hoon Baek Department of Orthopedic Surgery School of MedicineKyungpook National UniversityKyungpook National University Hospital130 Dongdeok-roJung-GuDaegu 41944South Korea

BACKGROUND Optimal treatment for iliopsoas tendinitis after total hip arthroplasty(THA)with cup malposition,iliopsoas release alone or with cup revision,is controversial,particularly in young,active ***,arthroscopic iliopsoas tendon(IPT)release in these patients has been rarely described,and midterm effects of this procedure on THA longevity and groin pain recurrence remain *** performed arthroscopic IPT release after THA and report midterm outcomes in two young patients with acetabular cup *** SUMMARY In the two patients,groin pain started early after *** examination revealed nonspecific findings,and laboratory tests showed no evidence of *** and computed tomography showed reduced acetabular component anteversion angle and anterior cup prominence of more than 16 *** therapeutic diagnosis,ultrasonography-guided lidocaine with steroid was injected into the IPT *** both patients,groin pain improved initially but worsened after a few ***,the patients underwent arthroscopic IPT release under spinal *** revealed synovitis with fibrous tissues around the IPT and various lesions related to the implants after *** tenotomy and debridement with biopsy were performed;histopathologic studies showed chronic inflammation with synovial *** patients were encouraged to start walking immediately after surgery,and they returned to complete daily function early after *** experienced no recurrence of groin pain or any implant-related problems 5 years *** Arthroscopic IPT release for cup malposition produced excellent midterm outcomes without recurrence of groin pain and implant-related problems.

关键词： Iliopsoas tendinitis Total hip arthroplasty Cup malposition Arthroscopy Tenotomy Case report

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Recovery of brachial plexus injury after bronchopleural fistula closure surgery based on electrodiagnostic study:A case report and review of literature

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World Journal of Clinical Cases 2022年第30期10卷 11090-11100页

作者： Young-In Go Da-Sol kim Gi-wook kim Yu Hui Won Sung-Hee Park Myoung-hwan Ko Jeong-hwan Seo Department of Physical Medicine&Rehabilitation Jeonbuk National University Medical SchoolJeonju 54907South Korea Research Institute of Clinical Medicine of Jeonbuk National University Biomedical Research Institute of Jeonbuk National University HospitalJeonju 54907South Korea

BACKGROUND Axillary thoracotomy and muscle flap are muscle-and nerve-sparing methods among the surgical approaches to bronchopleural fistula(BPF).However,in patients who are vulnerable to a nerve compression injury,nerve injury may *** this report,we present a unique case in which the brachial plexus(division level),suprascapular,and long thoracic nerve injury occurred after BPF closure surgery in a patient with ankylosing spondylitis and concomitant multiple joint *** SUMMARY A 52-year-old man with a history of ankylosing spondylitis with shoulder joint contractures presented with right arm weakness and sensory impairment immediately after axillary thoracotomy and latissimus dorsi muscle flap surgery for BPF *** the surgery,the patient was positioned in a lateral decubitus position with the right arm hyper-abducted for approximately 6 *** resonance imaging and ultrasound revealed subclavius muscle injury or myositis with brachial plexus(BP)compression and related *** electrodiagnostic study confirmed the presence of BP injury involving the wholedivision level,long thoracic,and suprascapular nerve *** was treated with medication,physical therapy,and ultrasound-guided *** steroid injection at the BP,hydrodissection with 5%dextrose water at the BP and suprascapular nerve,and intra-articular steroid and hyaluronidase injection at the glenohumeral joint were *** postoperative day 194,the pain and arm weakness were resolved,and a follow-up electrodiagnostic study showed marked *** Clinicians should consider the possibilities of multiple nerve injuries in patients with joint contracture,and treat each specific therapeutic target.

关键词： Brachial plexus Electrodiagnosis Physical therapy Surgical flaps Thoracotomy Case report

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Risk factors for rebleeding after angiographically negative acute gastrointestinal bleeding

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World Journal of Gastroenterology 2009年第32期15卷 4023-4027页

作者： Ijin Joo Hyo-Cheol kim Jin wook Chung hwan Jun Jae Jae Hyung Park Department of Radiology Seoul National University College of Medicine Institute of Radiation Medicine Seoul National University Medical Research Center Clinical Research Institute Seoul National University HospitalSeoul 110-744South Korea

AIM:To identify possible predictive factors for rebleeding after angiographically negative findings in patients with acute non-variceal gastrointestinal ***: From January 2000 to July 2007, 128 patients with acute non-variceal gastrointestinal bleeding had negative f indings after initial angiography. Clinical and laboratory parameters were analyzed ***: Among 128 patients, 62 had no recurrent gastrointestinal bleeding and 66 had recurrent gastrointestinal bleeding within 30 d. As determined by the use of multivariate analysis, an underlying malignancy, liver cirrhosis and hematemesis were significant factors related to recurrent gastrointestinal ***: Clinical factors including underlying malignancy, liver cirrhosis, and hematemesis are important predictors for rebleeding after angiographically negative findings in patients with acute non-variceal gastrointestinal bleeding.

关键词： Angiography Gastrointestinal hemorrhage Predictive factor

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