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头颈位置对应用三种声门上通气装置时口咽部漏气压和套囊位置的影响

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麻醉与镇痛 2010年第5期6卷 50-55页

作者： Sang-Hyun Park, MD sung-hee han, MD, PhD Sang-Hwan Do, MD, PhD Jung-Won Kim, MD, PhD Jin-hee Kim, MD, PhD 樊慧杰(译) 郭政(校) Department of Anesthesiology and Pain Medicine Seoul National University Bundang Hospital Seongnam City Kyeonggi-do Korea Department of Anesthesiology and Pain Medicine Inje University Ilsan Paik Hospital Goyang City Kyeonggi-do Korea 不详

背景使用声门上通气装置时，例如引流型喉管（LTS）、食管引流型喉罩（PLMA）、喉周通气道（CobraPLA），口咽部漏气压和套囊位置会随着头颈位置的变化而改变。本研究测试了使用上述3种喉罩时头颈位置改变目『起的口咽部漏气压和套囊位... 详细信息

背景使用声门上通气装置时，例如引流型喉管（LTS）、食管引流型喉罩（PLMA）、喉周通气道（CobraPLA），口咽部漏气压和套囊位置会随着头颈位置的变化而改变。本研究测试了使用上述3种喉罩时头颈位置改变目『起的口咽部漏气压和套囊位置的变化。方法139例接受择期小型手术患者（年龄为18—70岁）随机接受使用3种声门上通气装置中的一种。测量以下4种头颈部位置时的口咽部漏气压和套囊内压：头正中位、前屈45°、后仰45°以及右偏45°，同时评估不良反应（如通气困难和胃胀气）。结果PLMA漏气压最低，体位为头后仰时漏气压为18．5cmH2O，LTS和CobraPLA分别为23．9和26．8cmH2O（P〈0．001）；头颈偏转时PLMA漏气压为25．0cmH2O，LTS和CobraPLA分别为29．4和28．5cmH2O（P〈0．005）。使用CobraPLA时，45例患者中有37例在口咽部漏气之前出现胃胀气。在使用LTS的患者中有7例颈前屈的患者出现了通气困难，需要使用气管插管。结论在头后仰和偏转时，PLMA比LTS和CobraPLA显著降低口咽部漏气压。使用LTS和CobraPLA时要注意头颈部位置，可能会发生胃胀气和通气困难。

关键词：通气装置口咽部头颈部气压声门食管引流型喉罩应用通气困难

预防性使用地塞米松可降低双腔气管导管拔管后咽痛及声嘶发生率

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麻醉与镇痛 2010年第2期6卷 57-61页

作者： Sang Hyun Park, MD sung-hee han, MD, PhD Sang-Hwan Do, MD, PhD Jung-Won Kim, MD, PhD Ka-young Rhee, MD, PhD Jin-hee kim, MD, PhD 陈亮(译) 陈畅(校) 王焱林(校) Department of Anesthesiology and Pain Medicine Seoul National University Bundang Hospital Seongnam City Kyeonggi-do Department of Anesthesiology and Pain Medicine Inje University llsan Paik Hospital Goyang City Kyeonggi-do Department of Anesthesiology and Pain Medicine Konkuk University School of medicine Seoul Korea 不详

背景：手术后咽痛及声嘶是气管插管，特别是双腔气管导管插管后的主要并发症。我们开展此项前瞻、随机、双盲的安慰剂对照研究，来评价地塞米松用以降低手术后咽痛及声嘶发生率和严重程度的效能。方法本研究选择了166例（18～75岁）使... 详细信息

背景：手术后咽痛及声嘶是气管插管，特别是双腔气管导管插管后的主要并发症。我们开展此项前瞻、随机、双盲的安慰剂对照研究，来评价地塞米松用以降低手术后咽痛及声嘶发生率和严重程度的效能。方法本研究选择了166例（18～75岁）使用双腔气管导管插管的胸外科手术患者。在全麻诱导之前，以双盲、前瞻性的随机方法分为地塞米松（静脉给予）0．1mg／kg组（D1组）、0．2mg／kg组（D2组）和安慰剂组（P组）。分别记录Cormack—Lehane评分的声门暴露度、双腔管插管阻力、尝试插管次数、完成插管时间以及插管维持时间。在拔管后1及24小时，利用视觉模拟评分（VAS，0=没有疼痛；100=可以想象的最剧烈疼痛）来评价咽痛及声嘶程度。结果拔管1小时后，咽痛、声嘶发生率及咽痛程度与P组（53％，36％，VAS30．9）相比，D1组（31％，P=0．021；11％，P=0．003；VAS12．4，P〈0．001）与D2组（11％，P=0．001；4％，P=0．001；VAS6．6，P〈0．001）均低。拔管24小时后，D2组（27％，P=0．002；15％，P=0．001；VAS29．9，P〈0．002）咽痛、声嘶发生率及咽痛程度显著低于D1组（47％，31％，VAS43．9）及P组（57％，45％，VAS51．3）。同时未发现与注射地塞米松相关的并发症的发生。结论预防性使用0．2mg／kg地塞米松能显著降低双腔气管导管拔管后１及24小时咽痛、声嘶发生率及严重程度。

关键词：双腔气管导管地塞米松预防性使用发生率拔管后咽痛声嘶视觉模拟评分

Endoscopic salvage treatment of histoacryl after stent application on the anastomotic leak after gastrectomy: A case report

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World Journal of Clinical Cases 2021年第1期9卷 262-266页

作者： hee-sung Kim Yook Kim Joung-Ho han Department of Internal Medicine Chungbuk National University HospitalChungbuk National University College of MedicineCheongju-si 28644South Korea Department of Radiology Chungbuk National University HospitalCheongju-si 28644South Korea

BACKGROUND Endoscopic approach could effectively manage postoperative anastomotic *** endoscopic methods have been developed for the treatment of anastomotic *** SUMMARY A 53-year-old woman developed anastomotic leak after laparoscopic proximal *** clip closure failed due to strong wall tension;therefore,a fully covered self-expandable esophageal metal stent(fc-SEMS)was placed to cover the leak after it was filled with a mixture of fibrin glue and ***,fluoroscopy with gastrograffin showed dye leaking out of the *** the previous fluoroscopic image for guidance,a catheter was inserted at the leakage *** radiocontrast dye was injected and was seen spreading along the sinus ***,histoacryl was *** days after the last procedure,upper gastrointestinal contrast studies showed no *** patient was subsequently discharged 9 d after histoacryl injection without any *** To seal an anastomosis leak after stent application,salvage technique using histoacryl injection at the leakage site with fluoroscopy guidance could be considered cautiously.

关键词： Anastomotic leak Stent Histoacryl Endoscopy Gastrectomy Gastric cancer Case report

Stevia extract enhances the fermentation and functional properties of fermented milk in human colon epithelial cells

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FOOD BIOSCIENCE 2023年第3期53卷 2516-2524页

作者： Kim, Do Hyun Jeong, Chang hee han, Seo Gu Jung, Hyun Su han, sung Gu Konkuk Univ Dept Food Sci & Biotechnol Anim Resources Seoul 05029 South Korea Honam Natl Inst Biol Resource HNIBR Dept Bioresource Industrializat Mokpo 58762 South Korea Konkuk Univ Anim Sci Bldg 618 120 Neungdong-Ro Seoul 05029 South Korea

Yogurt or fermented milk (FM) stimulates the production of mucin in the colon epithelium, which helps protect against pathogens. Stevia is a natural sweetener containing functional compound, stevioside. In the present study, we aimed to investigate the effect of stevia leaves extract (ST) on FM and the health effect of ST-added FM on human colon cells. Thus, we investigated the impact of the extracts from stevia leaves on the fermentation and quality characteristics of FM. In addition, we assessed the impact of ST-supplemented FM on mucin production and its anti-inflammatory properties against Escherichia coli O157:H7 in human colon epithelial cells (HT-29/MTX). The FM was enriched with ST (0-0.5% w/v) and fermented using a mixture of lactic acid bacteria (LAB). A control FM supplemented with 0.5% sucrose. The results demonstrated that ST significantly increased the fermentation rate of FM by promoting the growth of LAB. ST supplementation resulted in an increase in the titratable acidity, water-holding capacity, total solid content, and viscosity of FM. Treatment of HT-29/MTX cells with STFM supernatants led to higher mucus production, as evidenced by an increase in the mRNA expression of MUC2, CDX2, and TFF3. Moreover, ST-added FM resulted in decreased mRNA levels of TNF-alpha, IL-1 beta, and IL-6, and adhesion of E. coli to HT-29/MTX cells. These results suggest that consuming ST-added FM may help reinforce the intestinal mucus layer and prevent inflammations related to pathogenic bacteria.

关键词： Stevia Yogurt Fermented milk Lactic acid bacteria Mucin Bacterial adhesion

Postmortem ^(7)Li NMR analysis for assessing the reversibility of lithium metal electrodes in lithium metal batteries

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Journal of Energy Chemistry 2024年第7期94卷 430-440页

作者： Jaewon Baek Sunha Kim hee-Tak Kim Oc hee han Department of Chemical&Biomolecular Engineering KAISTDaejeon 34141Republic of Korea Metropolitan Seoul Center Korea Basic Science InstituteSeoul 03759Republic of Korea Graduate School of Analytical Science&Technology Chungnam National UniversityDaejeon 34134Republic of Korea

Despite the proficiency of lithium(Li)-7 NMR spectroscopy in delineating the physical and chemical states of Li metal electrodes,challenges in specimen preparation and interpretation impede its *** this study,we conducted a comprehensive postmortem analysis utilizing ^(7)Li NMR,employing a stan-dard magic angle spinning probe to examine protective-layer coated Li metal electrodes and LiAg alloy electrodes against bare Li metal electrodes within Li metal batteries(LMBs).Our investigation explores the effects of sample burrs,alignment with the magnetic field,the existence of liquid electrolytes,and precycling on the ^(7)Li NMR *** contrasting NMR spectra before and after cycling,we identi-fied alterations in Li^(0) and Li^(+) signals attributable to the degradation of the Li metal *** NMR analyses decisively demonstrate the efficacy of the protective layer in mitigating dendrite and solid elec-trolyte interphase ***,we noted that Li*ions near the Li metal surface exhibit magnetic susceptibility anisotropy,revealing a novel approach to studying diamagnetic species on Li metal elec-trodes in *** study provides valuable insights and practical guidelines for characterizing distinct lithium states within LMBs.

关键词： NMR spectroscopy Lithium-7 Lithium metal battery Electrolyte Electrode-protective layer Solid electrolyte interface Magnetic susceptibility anisotropy Lithium-metal NMR signal Diamagnetic^(7)Li NMR signal

Practical operating flexibility of a bifunctional freestanding membrane for efficient anion exchange membrane water electrolysis across all current ranges

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Carbon Energy 2024年第9期6卷 306-324页

作者： Hong-Jin Son Jeemin Hwang Min Young Choi Seung hee Park Jae Hyuk Jang Byungchan han sung Hoon Ahn Department of Bio-Chemical Engineering Chosun UniversityGwangjuRepublic of Korea Fuel Cell Research and Demonstration Center Hydrogen Energy Research DivisionKorea Institute of Energy Research(KIER)Buan-gunJeollabuk-doRepublic of Korea Department of Chemical and Biomolecular Engineering Yonsei UniversitySeoulRepublic of Korea Center for Research Equipment Korea Basic Science InstituteDaejeonRepublic of Korea

This study explores a symmetric configuration approach in anion exchange membrane(AEM)water electrolysis,focusing on overcoming adaptability challenges in dynamic ***,a rapid and mild synthesis technique for fabricating fibrous membrane-type catalyst electrodes is *** method leverages the contrasting oxidation states between the sulfur-doped NiFe(OH)_(2) shell and the metallic Ni core,as revealed by electron energy loss *** evaluations confirm that the S–NiFe(OH)_(2) active sites optimize free energy for alkaline water electrolysis *** technique bypasses traditional energy-intensive processes,achieving superior bifunctional activity beyond current *** symmetric AEM water electrolyzer demonstrates a current density of 2 A cm^(-2) at 1.78 V at 60℃ in 1 M KOH electrolyte and also sustains ampere-scale water electrolysis below 2.0 V for 140 h even in ambient *** results highlight the system's operational flexibility and structural stability,marking a significant advance-ment in AEM water electrolysis technology.

关键词： AEM water electrolysis fibrous membrane iR correction free operational stability symmetric configuration

Gastric ischemia after epinephrine injection in a patient with liver cirrhosis

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World Journal of Gastroenterology 2013年第3期19卷 411-414页

作者： Su Young Kim Seung-hee han Kyung han Kim Sang Ock Kim Sang-Young han sung-Wook Lee Yang Hyun Baek Department of Internal Medicine Dong-A University College of MedicineBusan 602-715South Korea

Endoscopic epinephrine injection is relatively easy,quick and ***,it has a low rate of com-plications,and it is widely used for the management of nonvariceal upper gastrointestinal *** have been several case reports of gastric ischemia after en-doscopic injection *** intra-arterial in-jection may result in either spasm or thrombosis,leading to subsequent tissue ischemia or necrosis,although the stomach has a rich vascular supply and the vascular reserve of the intramural *** addition to endoscopic injection therapy,smoking,hypertension and atherosclerosis are risk factors of gastric ischemia. We report a case of gastric ischemia after submucosal epinephrine injection in a 51-year-old woman with hy-pertension and liver cirrhosis.

关键词： Hematemesis Epinephrine Gastric ischemia Liver cirrhosis Hypertension

Determining node duty cycle using Q-learning and linear regression for WSN

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Frontiers of Computer Science 2021年第1期15卷 17-23页

作者： han Yao HUANG Kyung Tae KIM hee Yong YOUN College of Software Sungkyunkwan UniversitySuwon 440-746Korea

Wireless sensor network(WSN)is effective for monitoring the target environment,which consists of a large number of sensor nodes of limited *** efficient medium access control(MAC)protocol is thus imperative to maximize the energy efficiency and performance of *** most existing MAC protocols are based on the scheduling of sleep and active period of the nodes,and do not consider the relationship between the load condition and *** this paper a novel scheme is proposed to properly determine the duty cycle of the WSN nodes according to the load,which employs the Q-leaming technique and function approximation with linear *** allows low-latency energy-efficient scheduling for a wide range of traffic conditions,and effectively overcomes the limitation of Q-learning with the problem of continuous state-action ***3 simulation reveals that the proposed scheme significantly improves the throughput,latency,and energy efficiency compared to the existing fully active scheme and S-MAC.

关键词： wireless sensor network media access control duty-cycle scheduling Q-leaming linear regression

Comparative study on multibody vehicle dynamics models based on subsystem synthesis method using Cartesian and joint coordinates

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Theoretical & Applied Mechanics Letters 2012年第6期2卷 65-70页

作者： sung Soo Kim Wan hee Jeong Myung Ho Kim Jong Boo han Department of Mechatronics Engineering Chungnam National University 220 Kung-DongYuseong-GuDaejeon 305-764Korea Graduate School of Mechanical Mechanical DesignMechatronics EngineeringChungnam National UniversityDaejeon 305-764Korea Korea Institute of Machinery and Materials Daejeon 305-764Korea

The subsystem synthesis method has been developed in order to improve computational efficiency for a multibody vehicle dynamics model. Using the subsystem synthesis method, equations of motion of the base body and each subsystem can be solved separately. In the subsystem synthesis method, various coordinate systems can be used and various integration methods can be applied in each subsystem, as long as the effective mass matrix and the effective force vector are properly produced. In this paper, comparative study has been carried out for the subsystem synthesis method with Cartesian coordinates and with joint relative coordinates. Two different integration methods such as an explicit integrator and an explicit implicit integrator are employed. In order to see the accuracy and computational efficiency from the different models based on the different coordinate systems and different integration methods, a rough terrain run simulations has been carried out with a 6 × 6 off-road multibody vehicle model.

关键词： subsystem synthesis method differential algebraic equations