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Aligned Ion Conduction Pathway of Polyrotaxane‑Based Electrolyte with Dispersed Hydrophobic Chains for Solid‑State Lithium–Oxygen Batteries

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Nano-Micro Letters 2025年第2期17卷 169-186页

作者： Bitgaram kim Myeong‑chang Sung Gwang‑Hee Lee Byoungjoon Hwang Sojung Seo Ji‑Hun Seo Dong‑Wan kim Department of Materials Science and Engineering Korea University145 Anam‑RoSeongbuk‑GuSeoul 02841Republic of Korea School of Civil Environmental and Architectural EngineeringKorea University145 Anam‑RoSeongbuk‑GuSeoul 02841Republic of Korea Materials Science and Chemical Engineering Center Institute for Advanced Engineering(IAE)Yongin 17180Republic of Korea

A critical challenge hindering the practical application of lithium–oxygen batteries(LOBs)is the inevitable problems associated with liquid electrolytes,such as evaporation and safety *** study addresses these problems by proposing a modified polyrotaxane(mPR)-based solid polymer electrolyte(SPE)design that simultaneously mitigates solvent-related problems and improves ***-SPE exhibits high ion conductivity(2.8×10^(−3)S cm^(−1)at 25℃)through aligned ion conduction pathways and provides electrode protection ability through hydrophobic chain *** this mPR-SPE into solid-state LOBs resulted in stable potentials over 300 *** situ Raman spectroscopy reveals the presence of an LiO_(2)intermediate alongside Li_(2)O_(2)during oxygen *** situ X-ray diffraction confirm the ability of the SPE to hinder the permeation of oxygen and moisture,as demonstrated by the air permeability *** present study suggests that maintaining a low residual solvent while achieving high ionic conductivity is crucial for restricting the sub-reactions of solid-state LOBs.

关键词： Solid polymer electrolyte Lithium-oxygen batteries Polyrotaxane ion conductivity Hydrophobic chain

minimally invasive surgery for submucosal(subepithelial) tumors of the stomach

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World Journal of Gastroenterology 2014年第36期20卷 13035-13043页

作者： chang min Lee Hyung-Ho kim Department of Surgery Seoul National University Bundang Hospital Seongnam 463-707 South Korea Colledge of Medicine Seoul National University Seoul 110-799 South Korea

minimally invasive surgery has become common in the surgical resection of gastrointestinal submucosal tumors(SMTs). The purpose of this article is to review recent trends in minimally invasive surgery for gastric SMTs. Although laparoscopic resection has been main stream of minimally invasive surgery for gastrointestinal SMTs, recent advances in endoscopic procedures now provide various treatment modalities for gastric SMTs. Moreover, investigators have developed several hybrid techniques that include the advantages of both laparoscopic and endoscopic procedure. In addition, several types of reduced port surgeries, modification of conventional laparoscopic procedures, have been recently applied to the surgical resection of SMTs. Meanwhile, robotic surgery for SMTs requires further evidence and improvement.

关键词： minimally invasive Surgery Submucosal tumor Gastrointestinal tract

Essentials of thoracic outlet syndrome:A narrative review

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World Journal of Clinical Cases 2021年第21期9卷 5804-5811页

作者： min Cheol chang Du Hwan kim Department of Rehabilitation Medicine College of MedicineYeungnam UniversityDaegu 42415South Korea Department of Physical Medicine and Rehabilitation College of MedicineChung-Ang UniversitySeoul 06973South Korea

Thoracic outlet syndrome(TOS)is a group of diverse disorders involving compression of the nerves and/or blood vessels in the thoracic outlet *** results in pain,numbness,paresthesia,and motor weakness in the affected upper *** reviewed the pathophysiology,clinical evaluation,differential diagnoses,and treatment of *** is usually classified into three types,neurogenic,venous,and arterial,according to the primarily affected *** true neurogenic and disputed TOS are considered neurogenic *** identifying the causative lesions is complex,detailed history taking and thorough clinical investigation are *** and imaging studies are helpful for excluding other possible disorders and confirming the diagnosis of true neurogenic *** existence of a disputed TOS remains *** physicians tend to be skeptical about the existence of disputed TOS,but thoracic surgeons argue that disputed TOS is *** who encounter patients with TOS need to understand its key features to avoid misdiagnosis and provide appropriate treatment.

关键词： Brachial plexus Diagnosis Review Thoracic outlet syndrome Treatment Neuromuscular lesions

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北师大版初中数学新教材的特色及变化分析

教学与管理 2025年第1期 44-48页

作者：常海斌宁依敏首都师范大学教育学院北京100048 华东师范大学数学科学学院上海200241

深刻理解和准确解读教材是有效使用教材的前提。北师大版初中数学新教材遵循“教育本位”的教材编写理念,在章首语、栏目设置、问题解决、习题设计和素材选取上各具特色;教材整体采用跨领域混编、螺旋式上升和小结整合式的编写模式,着... 详细信息

深刻理解和准确解读教材是有效使用教材的前提。北师大版初中数学新教材遵循“教育本位”的教材编写理念,在章首语、栏目设置、问题解决、习题设计和素材选取上各具特色;教材整体采用跨领域混编、螺旋式上升和小结整合式的编写模式,着重凸显课程内容的结构化和认知过程的进阶性;四个学习领域以“研究对象”的形式进行内容整合,具有重视代数推理、重构统计量的组合形式以及对综合与实践领域进行主题迭代和核心创变等变化。

关键词：初中数学新教材教材编写特色北师大版教材新教材变化分析

Obturator hernia-a rare etiology of lateral thigh pain:A case report

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World Journal of Clinical Cases 2021年第34期9卷 10728-10732页

作者： Jun Young kim min Cheol chang Department of Physical Medicine and Rehabilitation College of MedicineYeungnam UniversityTaegu 705-717South Korea

BACKGROUND Lateral thigh pain is a common complaint in patients visiting a pain ***,we describe the case of a patient with lateral thigh pain caused by an obturator *** SUMMARY An 83-year-old woman visited the emergency room with suddenly aggravated right lateral thigh *** resonance imaging of the thigh revealed no abnormal findings in the lateral thigh ***,an obturator hernia between the pectineus and obturator externus muscles was observed by *** computed tomography revealed a herniated small bowel with an incarceration point at the right obturator canal and a dilated loop of the small bowel *** of the right inguinal region revealed a distended bowel loop in the right pectineus *** Our report provides clinicians with information that an obturator hernia can cause lateral thigh pain.

关键词： Obturator hernia Pain Magnetic resonance image Computed tomography Ultrasonography Case report

GRU-based Buzzer Ensemble for Abnormal Detection in Industrial Control Systems

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Computers, Materials & Continua 2023年第1期74卷 1749-1763页

作者： Hyo-Seok kim chang-Gyoon Lim Sang-Joon Lee Yong-min kim Interdisciplinary Program of Information Security Chonnam National UniversityGwangju61186Korea Major in Computer Engineering Chonnam National UniversityYeosu59626Korea School of Business Administration Chonnam National UniversityGwangju61186Korea Department of Electronic Commerce Chonnam National UniversityYeosu59626Korea

Recently,Industrial Control Systems(ICSs)have been changing from a closed environment to an open environment because of the expansion of digital transformation,smart factories,and Industrial Internet of Things(IIoT).Since security accidents that occur in ICSs can cause national confusion and human casualties,research on detecting abnormalities by using normal operation data learning is being actively *** single technique proposed by existing studies does not detect abnormalities well or provide satisfactory *** this paper,we propose a GRU-based Buzzer Ensemble for AbnormalDetection(GBE-AD)model for detecting anomalies in industrial control systems to ensure rapid response and process *** newly proposed ensemble model of the buzzer method resolves False Negatives(FNs)by complementing the limited range that can be detected in a single model because of the internal models composing *** the internal models remain suppressed for False Positives(FPs),GBE-AD provides better *** addition,we generated mean prediction error data in GBE-AD and inferred abnormal processes using soft and hard *** confirmed that the detection model’s Time-series Aware Precision(TaP)suppressed FPs at 97.67%.The final performance was 94.04%in an experiment using anHIL-basedAugmented ICS(HAI)Security Dataset(ver.21.03)among public datasets.

关键词： Industrial control system abnormal detection ensemble learning HAI dataset

Cardiac metastasis from colorectal cancer:A case report

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World Journal of Gastroenterology 2009年第21期15卷 2675-2678页

作者： Pyong Wha Choi Chul Nam kim Sun Hee chang Woo Ik chang chang Young kim Hyun min Choi Department of Surgery Ilsan Paik HospitalInje University College of Medicine Department of Diagnostic Pathology Ilsan Paik HospitalInje University College of Medicine Department of Chest Surgery Ilsan Paik HospitalInje University College of Medicine Department of Internal Medicine Ilsan Paik HospitalInje University College of Medicine

The heart is an unusual site of metastasis from any malignancy. We report a case of cardiac metastasis from colorectal cancer. A 70-year-old woman was referred with a presumptive diagnosis of sigmoid colon cancer with cardiac myxoma. Two-dimensional echocardiography showed a 4 cm x 4.5 cm mobile mass on the lateral right atrial wall, and computed tomography revealed a low attenuated Iobulating mass in the right atrium. The patient underwent anterior resection for sigmoid colon cancer （T4N2）. Thereafter, she experienced progressive shortness of breath. Therefore, a cardiac operation was performed 2 wk after the colorectal operation. Histological examination revealed adenocarcinoma, which was identical to the primary lesion. Although two- dimensional echocardiography has become the diagnostic test of choice for detecting cardiac tumors, in patients with colorectal cancer showing a cardiac mass, further diagnostic evaluation such as a magnetic resonance imaging might be necessary.

关键词： Heart Cardiac metastasis Colorectalcancer Atrial myxoma Magnetic resonance imaging

Influence of Tropical Cyclone Landfalls on Spatiotemporal Variations in Typhoon Season Rainfall over South China

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Advances in Atmospheric Sciences 2010年第2期27卷 443-454页

作者： min-Hee LEE chang-Hoi HO Joo-Hong kim Computational Science and Technology Seoul National University School of Earth and Environmental Sciences Seoul National University Met Office Hadley Centre

This study examined the impact of tropical cyclone (TC) landfalls on the spatiotemporal variations in the rainfall over South China for the period 1957–2005. The target region was selected to show the noteworthy contribution of TC landfalls to the total rainfall during the typhoon season (July–October). Two prevailing spatial variations in the rainfall were obtained from an EOF analysis. The first EOF mode displays singlesign variability over South China with an explained variance of 23.4%. The associated time series of this mode fluctuates on a decadal timescale and was found to be correlated with TC genesis in the South China Sea. The second EOF mode shows a seesaw pattern between Hainan Island/Guangdong Province and the remaining regions with an explained variance of 11.4%. This seesaw pattern results from an anti-correlation in seasonal TC landfalls between the two regions, which was found in previous studies. This is related to the strengthening (weakening) of the upper tropospheric jets and the corresponding development of a massive anticyclonic (cyclonic) circulation over East Asia. The EOF analysis was also conducted using just the data for rainfall caused by landfalling TCs. This revealed that the first EOF mode using just the TC-induced rainfall is nearly identical to the second mode from the total rainfall. The obvious seesaw pattern of the first mode when employing just the TC-induced rainfall in the EOF analysis implies that this pattern has larger temporal variability than the single-signed pattern (i.e., the first EOF mode using the total rainfall) in terms of TC landfalls. This study suggests that TC landfalls over South China and the accompanying rainfall significantly modulate the spatial variation of the typhoon season rainfall there.

关键词： rainfall tropical cyclone South China typhoon season

Amputation stump management:A narrative review

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World Journal of Clinical Cases 2022年第13期10卷 3981-3988页

作者： Yoo Jin Choo Du Hwan kim min Cheol chang Department of Physical Medicine and Rehabilitation College of MedicineYeungnam UniversityDaegu 705-717South Korea Department of Physical Medicine and Rehabilitation College of MedicineChung-Ang UniversitySeoul 06973South Korea Department of Physical Medicine and Rehabilitation College of MedicineYeungnam UniversityTaegu 705-717South Korea

In this review intended for medical staff involved in patient rehabilitation,we provided an overview of the basic methods for managing amputation *** the amputation surgery,it is imperative to optimize the remaining physical abilities of the amputee through rehabilitation processes,including postoperative rehabilitation,desensitization,and continuous application of soft or rigid dressings for pain reduction and shaping of the *** on the situation,a prosthesis may be worn in the early stage of recovery or an immediate postoperative prosthesis may be applied to promote stump ***,to maintain the range of motion of the stump and to prevent deformation,the remaining portion of the limb should be positioned to prevent *** exercises should also be performed to improve muscle strength to ensure that the amputee is able to perform activities of daily living,***,clean wound or edema management of the stump is necessary to prevent problems associated with wearing the *** review is expected to contribute to the establishment of basic protocols that will be useful for stump management from the time of completion of amputation surgery to the fitting of a prosthesis to optimize patient recovery.

关键词： Amputation Amputee Management Rehabilitation Stump Review