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International consensus guidelines on robotic pancreatic surgery in 2023

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Hepatobiliary Surgery and Nutrition 2024年第1期13卷 89-104页

作者： Rong Liu mohammed Abu Hilal marc G.Besselink Thilo Hackert Chinnusamy Palanivelu Yupei Zhao Jin He Ugo Boggi Jin-Young jang Fabrizio Panaro Brian k.P.Goh mikhail Efanov Yuichi Nagakawa Hong-Jin kim Xiaoyu Yin Zhiming Zhao Yi-ming Shyr Shridhar Iyer Eli kakiashvili Ho-Seong Han Jae Hoon Lee Roland Croner marco Vito marino Arun Prasad Wei Wang Songqing He kehu Yang Qu Liu Zizheng Wang mengyang Li Shuai Xu kongyuan Wei Zhaoda Deng Yuze Jia Tess m.E.van Ramshorst Faculty of Hepatopancreatobiliary Surgery The First Medical Center of Chinese People’s Liberation Army(PLA)General HospitalBeijingChina Department of Surgery Poliambulanza Foundation HospitalBresciaItaly Department of Surgery University Hospital Southampton NHS Foundation TrustSouthamptonUK Amsterdam UmC location University of AmsterdamDepartment of SurgeryAmsterdamThe Netherlands Cancer Center Amsterdam AmsterdamThe Netherlands Department of General Visceral and Thoracic SurgeryUniversity Hospital Hamburg-EppendorfHamburgGermany Department of minimal Invasive Hernia Surgery GEM Hospital and Research CentreChennaiTamil NaduIndia Department of General Surgery Peking Union Medical College Hospital BeijingBeijingChina Department of Surgery Johns Hopkins University School of MedicineBaltimoreMDUSA Division of General and Transplant Surgery University of PisaPisaItaly Department of Surgery Seoul National University HospitalSeoul National University College of MedicineSeoulKorea Department of Surgery/Division of HBP Surgery&Transplantation University of MontpellierMontpellierFrance Department of Hepatopancreatobiliary and Transplant Surgery Singapore General Hospital and National Cancer Centre SingaporeSingaporeSingapore Department of Hepato-Pancreato-Biliary Surgery Moscow Clinical Scientific CenterMoscowRussia Department of Gastrointestinal and Pediatric Surgery Tokyo Medical UniversityShinjukuTokyoJapan Department of Surgery Yeungnam University College of MedicineDaeguKorea Department of Pancreato-Biliary Surgery The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhouChina 18 Division of Hepatobiliary Pancreatic Surgery and Liver TransplantationNational University HospitalSingaporeSingapore Department of Surgery Galilee Medical CenterNahariyaIsrael Department of Surgery Seoul National University Bundang HospitalSeoul National University College of MedicineSeongnam-siKorea Division of Hepato-Biliary and Pancreatic Surgery Department of SurgeryAsan Medical Cente

Background:With the rapid development of robotic surgery,especially for the abdominal surgery,robotic pancreatic surgery(RPS)has been applied increasingly around the ***,evidence-based guidelines regarding its application,safety,and efficacy are still *** harvest robust evidence and comprehensive clinical practice,this study aims to develop international guidelines on the use of ***:World Health Organization(WHO)Handbook for Guideline Development,GRADE Grid method,Delphi vote,and the AGREE-II instrument were used to establish the Guideline Steering Group,Guideline Development Group,and Guideline Secretary Group,formulate 19 clinical questions,develop the recommendations,and draft the *** online meetings were held on 04/12/2020,30/11/2021,and 25/01/2022 to vote on the recommendations and get advice and suggestions from all involved *** the experts focusing on minimally invasive surgery from America,Europe and Oceania made great contributions to this consensus ***:After a systematic literature review 176 studies were included,19 questions were addressed and 14 recommendations were developed through the expert assessment and comprehensive judgment of the quality and credibility of the ***:The international RPS guidelines can guide current practice for surgeons,patients,medical societies,hospital administrators,and related social *** randomized trials are required to determine the added value of RPS as compared to open and laparoscopic surgery.

关键词： Robotic surgery guidelines pancreatectomy pancreaticoduodenectomy distal pancreatectomy(DP)

FATIGUE LIVES FOR INDUCTION HARDENED SHAFTS mATERIALS ACCORDING TO THE ENVIRONmENTAL TEmPERATURES

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Acta metallurgica Sinica(English Letters) 2005年第5期18卷 585-593页

作者： D.G. Lee k.C. jang J.m. kuk I.S. kim korea Institute of Industrial Technology Gwangju 506-824 Korea Dept. of mechanical Engineering Mokpo National University Mokpo 534-729 Korea

Rotary bending fatigue tests were carried out with two kinds of materials, S43C and S50C, using the front engine and front drive shaft （FF shaft） of vehicle. The specimens were induction hardened about 1.0mm depth from the specimen surface, and the hardness value on the surface was about HRC56-60. The tested environment temperatures were -30, 25 and 80℃ in order to look over effect of the induction hardening and the environmental temperatures on the fatigue characteristics. The fatigue limit of induction hardened specimens increased more about 45% than non-hardened specimens showing that the endurances of S43C and S50C were 98.1 and 107.9mPa in non-hardened samples, 147.1 and 156.9mPa in hardened samplesrespectably. The maximum tensile and compressive stress on the small circular defect was about ＋250 and -450mPa respectively when circular defect is situated on top and bottom. The fatigue life increased 80, 25 and -30℃ in order regardless of hardening. In comparison of the fatigue lives on the basis of tested result at 25℃, the fatigue lives of non-hardened specimens decreased about 35%, but that of hardened specimens decreased about only 5% at 80℃ more than at 25℃. And fatigue life of non-hardened and hardened specimens were about 110% and 120% higher at -30℃ than that of 25℃. Based on the result of stress distribution near the defect, the tensile and compressive stress repeatedly generated by load direction were the largest on the small circular defect due to the stress concentration.

关键词： induction hardening fatigue test front engine and front drive shaft,fatigue crack fatigue life fatigue life ratio

Iridium oxide fabrication and application: A review

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Journal of Energy Chemistry 2020年第7期29卷 152-172,I0005页

作者： Hansaem jang Jaeyoung Lee Electrochemical Reaction&Technology Laboratory(ERTL) School of Earth Sciences and Environmental EngineeringGwangju Institute of Science and Technology(GIST)Gwangju 61005Republic of Korea Ertl Center for Electrochemistry and Catalysis GRIGISTGwangju 61005Republic of Korea

Despite the scarcity and cost of iridium oxide,it is still the material of choice in numerous fields of science and applications,including capacitors,electrochromism,sensors,and various oxidation electrocatalysis(e.g.,chlorine evolution reaction,detoxification,and oxygen evolution reaction).Such versatility is attributed to the distinct features of iridium oxides,such as their activity,biocompatibility,conductivity,and *** features and properties of iridium oxides are strongly dependent on the fabrication *** this review,methodologies relating to the synthesis and fabrication of solid-state iridium oxides have been thoroughly collected and *** and crystallization techniques for iridium oxides are also *** the end of the review,the effects of utilizing a certain fabrication method on the characteristics of the iridium oxide product are recapitulated,together with the recommended application of the product in various fields.

关键词： Iridium oxide Iridium dioxide Electrode Electrocatalyst Electrochromism pH sensor Oxygen evolution reaction

Schottky barrier modulation of bottom contact SnO_(2) thin-film transistors via chloride-based combustion synthesis

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Journal of materials Science & Technology 2023年第17期148卷 199-208页

作者： Bongho jang Junhee Lee Hongki kang Jaewon jang Hyuk-Jun kwon Department of Electrical Engineering and Computer Science DGISTDaegu 42988South Korea School of Electronic and Electrical Engineering Kyungpook National UniversityDaegu 41566South Korea School of Electronics Engineering Kyungpook National UniversityDaegu 41566South Korea Convergence Research Advanced Centre for Olfaction DGISTDaegu 42988South Korea

The enhanced carrier flow at the interface between Au and SnO_(2)semiconductors,which initially form Schottky contacts,is realized using chloride-based combustion ***-based combustion sys-tems can achieve chlorine(Cl)doping effects as well as conversion to crystalline SnO_(2)films at clearly lower temperatures(∼250℃)than conventional *** to the Cl doping effect,the high carrier concentration can induce thin potential barriers at the metal/semiconductor(mS)junctions,resulting in carrier injection by *** a result,compared to conventional SnO_(2)thin-film transistors,the de-vices fabricated by combustion synthesis exhibit significantly improved electrical performance with field-effect mobility of 6.52 cm 2/Vs(∼13 times),subthreshold swing of 0.74 V/dec,and on/offratio of∼10^(7)below 300℃.Furthermore,because of the enhanced tunneling carriers induced by the narrowed barrier width,the Schottky barriers are significantly reduced from 0.83 to 0.29 eV(65%decrease)at 250℃and from 0.42 to 0.17 eV(60%decrease)at 400℃.Therefore,chloride-based combustion synthesis can con-tribute to developing SnO_(2)-based electronics and flexible devices by achieving both high-quality oxide films and improved current flow at the mS interface with low-temperature annealing.

关键词： SnO_(2) Combustion Sol-gel Schottky contact Thin-film transistors

Difference in cortical activation during use of volar and dorsal hand splints:a functional magnetic resonance imaging study

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Neural Regeneration Research 2016年第8期11卷 1274-1277页

作者： Sung Ho jang Woo Hyuk jang Department of Physical medicine and Rehabilitation College of MedicineYeungnam University

There have been no studies reported on the difference in cortical activation during use of volar and dorsal hand *** attempted to investigate the difference in cortical activation in the somatosensory cortical area during use of volar and dorsal hand splints by functional magnetic resonance imaging（f mRI）.We recruited eight healthy volunteers.f mRI was performed while subjects who were fitted with volar or dorsal hand splints performed grasp-release *** of interest were placed on the primary motor cortex（m1）,primary somatosensory cortex（S1）,posterior parietal cortex（PPC）,and secondary somatosensory cortex（S2）.Results of group analysis of f mRI data showed that the total numbers of activated voxels in all ROIs were significantly higher during use of volar hand splint（3,376） compared with that（1,416） during use of dorsal hand *** each ROI,use of volar hand splint induced greater activation in all ROIs（m1：1,748,S1 ：1,455,PPC：23,and S2：150） compared with use of dorsal hand splint（m1：783,S1：625,PPC：0,and S2：8）.The peak activated value was also higher during use of volar hand splint（t-value：17.29） compared with that during use of dorsal hand splint（t-value：13.11）.Taken together,use of volar hand splint induced greater cortical activation relevant to somatosensory function than use of dorsal hand *** result would be important for the physiatrist and therapist to apply appropriate somatosensory input in patients with brain injury.

关键词： nerve regeneration functional mRI hand splint somatosensory function dorsal hand splint volar hand splint neural regeneration

Recent advances in electronic devices for monitoring and modulation of brain

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Nano Research 2021年第9期14卷 3070-3095页

作者： Yong Won kwon Yoon Sun Jun Young-Geun Park Jiuk jang jang-Ung Park Nano Science Technology Institute Department of Materials Science and EngineeringYonsei UniversitySeoul 03722Republic of Korea Center for Nanomedicine Institute for Basic Science(IBS)Seoul 03722Republic of Korea Graduate Program of Nano Biomedical Engineering(NanoBmE) Advanced Science InstituteYonsei UniversitySeoul 03722Republic of Korea

The brain is actuated by billions of neurons with trillions of interconnections that regulate human *** the mechanisms of these systems that induce sensory reactions and respond to disease remains one of the greatest challenges in science,engineering,and *** advances in nanomaterials and nanotechnologies have led to the extensive research of electronic devices for brain interfaces to better understand the neural activities of the brains complex nervous *** development of sensor devices for monitoring the physiological signals of the brain related to traumatic injury status has accompanied by the progress of electronic neural probes in *** addition,these neurological and stereotactic surgical revolutions hold immense potential for clinical analysis of pharmacological systems within cerebral ***,we review the progress of electronic devices interfacing with brain in terms of the materials,fabrication technologies,and device *** activity can be measured and modulated by brain probes based on newly developed nanofabrication ***,in vivo pathological monitoring of the brain and pharmacological assessment has been developed in miniaturized and wireless *** also consider the key challenges and prospects for further development,and explore the future directions emerging in the latest research.

关键词： neural interfaces neural recording neuromodulation intracranial pressure monitoring microfluidic drug delivery

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混联Ⅱ型惯容非线性能量阱的动力学特性研究

应用数学和力学 2024年第7期45卷 907-921页

作者：吴子英朱荣贤姜东贵晁国强张禹轩西安理工大学机械与精密仪器工程学院西安710048

分别使用非线性恢复力、非线性阻尼替代惯容减振系统中的线性恢复力、线性阻尼,并考虑摩擦力的影响,提出了混联Ⅱ型惯容非线性能量阱.建立了主系统的动力学方程,利用谐波平衡法求解系统在简谐激励下的幅频响应曲线.采用弧长算法和数值... 详细信息

分别使用非线性恢复力、非线性阻尼替代惯容减振系统中的线性恢复力、线性阻尼,并考虑摩擦力的影响,提出了混联Ⅱ型惯容非线性能量阱.建立了主系统的动力学方程,利用谐波平衡法求解系统在简谐激励下的幅频响应曲线.采用弧长算法和数值法相结合的方法研究了系统的惯质比、非线性阻尼、非线性刚度和摩擦力单个参数对其减振性能的影响.发现非线性刚度和非线性阻尼数值的增大会使峰值先减小后增大,不同的是,前者幅频响应曲线逐渐向右上方向弯曲,后者产生峰值的位置向低频段转移.分析了惯质比、非线性阻尼、非线性刚度3种参数两两组合下对系统减振效果的影响.研究表明,在激励幅值为0.005 m时,惯质比和阻尼同时变化减振效果最好:当ε=0.1时,系统主结构位移峰值的最小值约为0.01 m;而在参数ε=0.001时,整体取值范围内其最大值约为0.061 m;当惯质比取得最佳值0.1时,非线性阻尼和非线性刚度κ_(21)的取值范围变大.在摩擦力的作用下,系统的最大幅值都有不同程度的增加.上述研究可为振动系统减振的研究提供参考.

关键词：谐波平衡法非线性惯容器振动控制

Impacts of weaning age on dietary needs of whey permeate for pigs at 7 to 11 kg body weight

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Journal of Animal Science and Biotechnology 2022年第2期13卷 593-600页

作者： ki Beom jang marcos Elias Duarte Jerry m.Purvis Sung Woo kim Department of Animal Science North Carolina State UniversityRaleighNC 27695USA N.G.Purvis Farm Inc RobbinsNC 27325USA.

Background:Whey permeate is an effective lactose source for nursery pigs and the most benefits are obtained when pigs are at 7 to 11 kg *** weaning ages could cause different length of early-weaner phases until 7 kg BW and thus it would influence the dietary need of whey permeate during 7 to 11 kg BW of *** study aimed to evaluate if weaning ages would affect the dietary needs of whey permeate for optimum growth performance of pigs at 7 to 11 kg ***:A total of 1,632 pigs were weaned at d 21(d 21.2±1.3)or d 25(d 24.6±1.1)after *** pigs had a common early-weaner feeds until they reached 7 kg *** pigs reached 7 kg BW within a weaning age group,they were allotted in a randomized complete block design(2×4 factorial).Two factors were weaning age groups(21 and 25 d of age)and varying whey permeate levels(7.50%,11.25%,15.00%,and 18.75%).Data were analyzed using the GLm and NLIN procedures of SAS for slope-ratio and broken-line analyses to determine the growth response to whey permeate and optimal daily whey permeate intake for the growth of the pigs weaned at different ***:Pigs weaned at 21 d of age had a common diet for 11 d to reach 7 kg BW whereas pigs weaned at 25 d of age needed 2 *** G:F of pigs weaned at 25 d of age responded to increased daily whey permeate intake greater(Pmeate intake or 17.0%and 14.4%of whey permeate for G:F of pigs weaned at 21 and 25 d of age,***:Pigs weaned at an older age with a short early-weaner phase had a greater growth response to whey permeate intake compared with pigs weaned at a younger age with a long early-weaner *** weaning ages affected dietary needs of whey permeate for optimum growth performance of pigs from 7 to 11 kg BW.

关键词： Growth performance Nursery pigs Weaning age Whey permeate

Enhancement of Performance by Blade Optimization in Two-Stage Ring Blower

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Journal of Thermal Science 2010年第5期19卷 383-389页

作者： Choon-man jang Gi-Young Han Plant Research Division Korea Institute of Construction Technology dh-m co. ltd.626-5Bulmo-dongSeo-guIncheon404-270Korea

This paper describes the shape optimization of an impeller used for two-stage high pressure ring *** shape variables,which are used to define an impeller shape,are introduced to increase the blower *** pressure of a blower is selected as an object function,and the blade optimization is performed by a response surface ***-dimensional Navier-Stokes equations are introduced to analyze the internal flow of the blower and to find the value of object function for the training *** good agreement between experimental measurements and numerical simulation is obtained in the present *** the shape optimization,it is found that a hub height is effective to increase pressure in the ring *** pressure rise for the optimal two-stage ring blower is successfully increased up to 1.86% compared with that of reference at the design flow *** recirculation flow having low velocity is formed in both sides of the impeller outlet by different flow direction of the inlet and outlet of the *** flow field inside the ring blower is also analyzed and discussed.

关键词： Ring blower Blower performance Numerical simulation Blade optimization Response surface method