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World Journal of Clinical Cases 2023年第31期11卷 7699-7705页

作者： hyeong-Woo Park Kyung-Suk Ji jun-Hyung kim Li-Na kim Kang-Wook Ha Department of Physical Medicine and Rehabilitation Sahmyook Medical CenterSeoul 02500South Korea Department of Obstetrics and Gynecology Sahmyook Medical CenterSeoul 02500South Korea

BACKGROUND Meralgia paresthetica(MP)is an entrapment mononeuropathy of the lateral femoral cutaneous nerve(LFCN).Although structural abnormalities in nerve tissues can be confirmed using ultrasonography,this is not routinely *** SUMMARY Herein,we present the case of a 52-year-old woman who developed MP after laparoscopic gynecological *** patient was referred to our clinic from an obstetrics and gynecology clinic with symptoms of numbness and a tingling sensation in the left anterolateral thigh,which developed after surgery performed 5 mo *** were performed to assess the disease status and determine the underlying *** examination revealed an anatomical variation,where the left LFCN was entrapped within the inguinal *** case suggests that performing ultrasonographic examination before and after surgery in the lithotomy position could help prevent *** This case demonstrates the value of ultrasonography in detecting anatomical variation and diagnosing persistent *** should be considered an adjunct to electromyography for optimal MP ***,this case would help other clinicians determine patient prognosis and decide on targeted treatment strategies.

关键词： Lateral femoral cutaneous nerve Anatomical variation Meralgia paresthetica Lithotomy position Ultrasonography Case report

Is endoscopic ultrasonography essential for endoscopic resection of small rectal neuroendocrine tumors?

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World Journal of Gastroenterology 2017年第11期23卷 2037-2043页

作者： Su Bum Park Dong jun kim Hyung Wook kim Cheol Woong Choi Dae Hwan Kang Su Jin kim hyeong Seok Nam Department of Internal Medicine Pusan National University School of Medicine and Research Institute for Convergence of Biomedical Science and TechnologyPusan National University Yangsan HospitalYangsanGyeongsangnam-do 626-770South Korea

AIM To evaluate the importance of endoscopic ultrasonography(EUS) for small(≤ 10 mm) rectal neuroendocrine tumor(NET) *** Patients in whom rectal NETs were diagnosed by endoscopic resection(ER) at the Pusan National University Yangsan Hospital between 2008 and 2014 were included in this study. A total of 120 small rectal NETs in 118 patients were included in this study. Histologic features and clinical outcomes were analyzed, and the findings of endoscopy, EUS and histology were compared. RESULTS The size measured by endoscopy was not significantly different from that measured by EUS and histology(r = 0.914 and r = 0.727 respectively). Accuracy for the depth of invasion was 92.5% with EUS. No patients showed invasion of the muscularis propria or metastasis to the regional lymph nodes. All rectal NETswere classified as grade 1 and demonstrated an L-cell phenotype. Mean follow-up duration was 407.54 ± 374.16 d. No patients had local or distant metastasis during the follow-up periods. CONCLUSION EUS is not essential for ER in the patient with small rectal NETs because of the prominent morphology and benign behavior.

关键词： Neuroendocrine tumor Small Rectal Endoscopic ultrasonography Histology Endoscopy

2D MoS2 Helical Liquid Crystalline Fibers for Multifunctional Wearable Sensors

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Advanced Fiber Materials 2024年第6期6卷 1813-1824页

作者： jun Hyun Park Jang Hwan kim Su Eon Lee Hyokyeong kim Heo Yeon Lim Ji Sung Park Taeyeong Yun Jinyong Lee Simon kim Ho jun Jin Kyeong jun Park Heemin Kang Hoe Joon kim hyeong Min Jin Jiwoong kim Sang Ouk kim Bong Hoon kim Department of Robotics and Mechatronics Engineering DGISTDaegu 42988Republic of Korea Present Address:Platform Technology R&D Center LG ChemistrySeoul 07795Republic of Korea Department of Materials Science and Engineering Soongsil UniversitySeoul 06978Republic of Korea Department of Organic Materials and Fiber Engineering Soongsil UniversitySeoul 06978Republic of Korea Nano Convergence Technology Research Center Korea Electronics Technology Institute(KETI)Gyeonggi‑do 13509Republic of Korea Department of Green Chemistry and Materials Engineering Soongsil UniversitySeoul 06978Republic of Korea Department of Materials Science and Engineering Korea UniversitySeoul 02841Republic of Korea Department of Materials Science and Engineering National Creative Research Initiative Center for Multi‑Dimensional Directed Nanoscale AssemblyKAIST Institute for NanocenturyKAISTDaejeon 34141Republic of Korea Department of Organic Materials Engineering Chungnam National UniversityDaejeon 34134Republic of Korea Department of Materials Science and Engineering Chungnam National University99 Daehak‑roYuseong‑guDaejeon 34134Republic of Korea

Fiber-based material systems are emerging as key elements for next-generation wearable devices due to their remarkable advantages,including large mechanical deformability,breathability,and high ***,greatly improved mechani-cal stability has been established in functional fiber systems by introducing atomic-thick two-dimensional(2D)*** development of intelligent fibers that can respond to various external stimuli is strongly needed for versatile *** this work,helical-shaped semiconductive fibers capable of multifunctional sensing are obtained by wet-spinning MoS2 liquid crystal(LC)*** mechanical properties of the MoS2 fibers were improved by exploiting high-purity LC dispersions consisting of uniformly-sized MoS2 ***,three-dimensional(3D)helical fibers with structural chirality were successfully constructed by controlling the wet-spinning process *** helical fibers exhibited multifunctional sensing characteristics,including(1)photodetection,(2)pH monitoring,(3)gas detection,and(4)3D strain sensing.2D materials with semiconducting properties as well as abundant surface reactive sites enable smart multifunctionalities in one-dimensional(1D)and helical fiber geometry,which is potentially useful for diverse applications such as wearable internet of things(IoT)devices and soft robotics.

关键词： Molybdenum disulfide(MoS2) Liquid crystal(LC) Two-dimensional(2D)material Sensor Fiber

Emamectin benzoate 9.7%SL as a new formulation for a trunkinjections against pine wood nematode,Bursaphelenchus xylophilus

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Journal of Forestry Research 2020年第4期31卷 1399-1403页

作者： Sung-Chan Lee Hyo-Rim Lee Dong-Soo kim jun-hyeong Kwon Min-jung Huh Il-Kwon Park Department of Forest Sciences College of Agriculture and Life SciencesSeoul National UniversitySeoul 08826Republic of Korea Research Institute of Agriculture and Life Science College of Agriculture and Life SciencesSeoul National UniversitySeoul 08826Republic of Korea Forest Biomaterials Research Center National Institute of Forest ScienceJinjuGyeongnam 52817Republic of Korea

In this study,we investigated the preventive effects of emamectin benzoate 9.7%SL,which was newly developed to reduce the injection volume and number of injection holes required to protect against pine wood *** of the Pinus thunbergii trees injected with emamectin benzoate 9.7%SL at 0.3 mL/cm diameter at breast height(DBH)died within 2 years of inoculation with pine wood *** benzoate 9.7%SL injected at 0.6 mL/cm DBH resulted in no tree mortality for 3 *** residue of emamectin benzoate 9.7%SL in pine twigs injected with 0.3 mL/cm DBH was 0.490μg/g at 1 year after injection and 0.303μg/g after 2 *** residues values are greater than 0.031μg/g,previously determined IC95 value for emamectin benzoate against the pine wood *** field experiment and residue analysis showed that emamectin benzoate 9.7%SL could be a substitute agent for emamectin benzoate 2.15%EC,which is widely used to prevent pine wood nematode in the field and that injection volume and number of injection holes can be greatly educed using this new formulation,which will reduce injury to the cambium,interruption of water movement,and infection of inoculation wounds by wood-decay or blue stain fungi.

关键词： Emamectin benzoate 9.7%SL Emamectin benzoate 2.15%EC Trunk injection Pine wood nematode Residue

Polymyxin B hemoperfusion as a feasible therapy after source control in abdominal septic shock

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World Journal of Gastrointestinal Surgery 2019年第12期11卷 422-432页

作者： Jin Joo kim Young jun Park Ki Yoon Moon Jin hyeong Park Yong Ki Jeong Eun Young kim Division of Trauma and Surgical Critical Care Department of Surgery Seoul St. Mary’s Hospital College of Medicine The Catholic University of Korea

BACKGROUND Polymyxin B hemoperfusion(PMX-HP)has been used as a treatment for intraabdominal septic shock by absorbing and removing endotoxins of gram-negative *** To investigate the clinical efficacy of PMX-HP in patients with gram-negative septic shock who underwent abdominal *** From January 2012 to December 2018,patients who had septic shock secondary to peritonitis were *** were classified into PMX-HP treated and control groups based on postopreative intervention using *** clinical outcomes were compared using 1:1 propensity score matching methods to balance the overall distribution between the two *** After propensity score matching,40 patients were analyzed(20 patients in the PMX group and 20 patients in the control group).The scores of total Sequential Organ Failure Assessment(SOFA)score,renal SOFA and coagulation SOFA were significantly improved in the PMX group but not in the control group.(from 11.2±5.8 to 4.7±3.5 in PMX group vs 10.0±4.0 to 8.7±7.3 in control group,P=0.047 from 2.6±1.0 to 0.7±1.0 in PMX group vs 2.6±1.5 to 2.8±1.6 in control group,P=0.000,from 1.6±1.5 to 1.3±1.3 in PMX group vs 1.2±1.2 to 2.8±1.8 in control group,P=0.014,respectively).Further,the length of intensive care unit(ICU)stay was significantly shorter in PMX ***,no statistically significant difference was found in ICU mortality(50%in PMX group vs 50%in control group).CONCLUSION PMX-HP is a feasible adjunct treatment for peritonitis in ICU patients with peritonitis for improved organ impairment and to stabilize *** would be helpful to enhance clinical outcomes especially in patients with complete elimination of the source of gram-negative bacilli infection by surgical procedure accompanied with conventional treatment of sepsis.

关键词： Intraabdominal septic shock Panperitonitis Polymyxin B hemoperfusion Sepsis Toraymyxin

Nanoscale Materials and Deformable Device Designs for Bioinspired and Biointegrated Electronics

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Accounts of Materials Research 2021年第4期2卷 266-281页

作者： Woongchan Lee Huiwon Yun jun-Kyul Song Sung-Hyuk Sunwoo Dae-hyeong kim Center for Nanoparticle Research Institute for Basic Science(IBS)Seoul 08826Republic of Korea School of Chemical and Biological Engineering Institute of Chemical ProcessesSeoul National UniversitySeoul 08826Republic of Korea

Electronic devices whose structural and functional features are inspired by living creatures have unique performance and unconventional features that are not found in conventional electronic *** addition to such bioinspired electronics,with the rise of new fields such as personalized healthcare,mobile electronics,and big-data analysis,biointegrated electronic devices that can collect biomedical information from the human body through various biosensors and deliver appropriate therapeutic feedback stimulations in real time on the spot where immediate treatment is needed have become *** body parts and internal organs of living creatures,including humans,have curvilinear shapes and comprise mechanically soft tissues,such bioinspired and biointegrated electronic devices are required to match the soft and deformable features of biological *** soft and deformable features of electronic devices can be achieved by employing flexible and stretchable materials and unconventional device design *** soft materials and deformable device designs dissipate stress originating from mechanical deformation of the device and thus retard crack generation and/or propagation in the ***,technologies for nanoscale materials have shown a significant level of progress on their material performance and processing *** nanoscale dimension of the electronic materials could achieve extremely small flexural rigidity in comparison to the bulk state of the same ***,techniques to form a well-percolated network of nanomaterials in the elastomeric matrix and to build a pathway for the facile electron and hole transport inside the polymer have induced dramatic performance advances of soft electronic materials,which led to nanocomposites that can accomplish both high mechanical deformability and high electrical performance at the same *** addition,deformable device designs such as buckled structures and serpentine des

关键词： buckling rigidity electronics

Artifacts Reduction Using Multi-Scale Feature Attention Network in Compressed Medical Images

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Computers, Materials & Continua 2022年第2期70卷 3267-3279页

作者： Seonjae kim Dongsan jun Department of Convergence IT Engineering Kyungnam UniversityChangwon51767Korea

Medical image compression is one of the essential technologies to facilitate real-time medical data transmission in remote healthcare *** general,image compression can introduce undesired coding artifacts,such as blocking artifacts and ringing *** this paper,we proposed a Multi-Scale Feature Attention Network(MSFAN)with two essential parts,which are multi-scale feature extraction layers and feature attention layers to efficiently remove coding artifacts of compressed medical *** feature extraction layers have four Feature Extraction(FE)*** FE block consists of five convolution layers and one CA block for weighted skip *** order to optimize the proposed network architectures,a variety of verification tests were conducted using validation *** used Computer Vision Center-Clinic Database(CVC-ClinicDB)consisting of 612 colonoscopy medical images to evaluate the enhancement of image *** proposedMSFAN can achieve improved PSNR gains as high as 0.25 and 0.24 dB on average compared to DnCNNand DCSC,respectively.

关键词： Medical image processing convolutional neural network deep learning telemedicine artifact reduction image restoration

Reliability of flip-chip bonded RFID die using anisotropic conductive paste hybrid material

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Transactions of Nonferrous Metals Society of China 2011年第A1期21卷 175-181页

作者： jun-Sik LEE jun-Ki kim Mok-Soon kim Namhyun KANG Jong-Hyun LEE Advanced Joining Technology Team/Microjoining Center Korea Institute of Industrial Technology(KITECH) Yeonsu-gu Incheon 406-840 Korea School of Materials Science & Engineering Inha University Department of Materials Science & Engineering Pusan National University Department of Materials Science & Engineering Seoul National University of Technology

A reliability of flip-chip bonded die as a function of anisotropic conductive paste (ACP) hybrid materials, bonding conditions, and antenna pattern materials was investigated during the assembly of radio frequency identification(RFID) inlay. The optimization condition for flip-chip bonding was determined from the behavior of bonding strength. Under the optimized condition, the shear strength for the antenna printed with paste-type Ag ink was larger than that for Cu antenna. Furthermore, an identification distance was varied from the antenna materials. Comparing with the Ag antenna pattern, the as-bonded die on Cu antenna showed a larger distance of identification. However, the long-term reliability of inlay using the Cu antenna was decreased significantly as a function of aging time at room temperature because of the bended shape of Cu antenna formed during the flip-chip bonding process.

关键词： RFID inlay ACP flip-chip, bonding process reliability

Tribological properties of multilayer tetrahedral amorphous carbon coatings deposited by filtered cathodic vacuum arc deposition

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Friction 2021年第5期9卷 1292-1302页

作者： Young-jun JANG Jae-Il kim WooYoung LEE Jongkuk kim Department of Extreme Environmental Coatings Surface Technology DivisionKorea Institute of Materials Science(KIMS)Gyeongnam-do 51508Republic of Korea Department of Mechanical Science and Engineering Graduate School of EngineeringNagoya UniversityNagoya 464-8603Japan

Tetrahedral amorphous carbon(ta‐C)has emerged as an excellent coating material for improving the reliability of application components under high normal ***,we present the results of our investigations regarding the mechanical and tribological properties of a 2‐μm‐thick multilayer ta‐C coating on high‐speed steel *** composed of alternating soft and hard layers are fabricated using filtered a cathodic vacuum arc with alternating substrate bias voltages(0 and 100 V or 0 and 150 V).The thickness ratio is discovered to be 1:3 for the sp2‐rich and sp3‐rich *** results show that the hardness and elastic modulus of the multilayer ta‐C coatings increase with the sp3 content of the hard *** hardness reached approximately 37 GPa,whereas an improved toughness and a higher adhesion strength(>29 N)are *** friction performance(μ=0.07)of the multilayer coating is similar to that of the single layer ta‐C thick coating,but the wear rate(0.13×10^(–6) mm^(3)/(N∙m))improved under a high load of 30 *** further demonstrate the importance of the multilayer structure in suppressing crack propagation and increasing the resistance to plastic deformation(H3/E2)ratio.

关键词： tetrahedral amorphous carbon(ta‐C) filtered cathodic vacuum arc deposition multilayer coatings alternating substrate bias voltage wear resistance plastic deformation resistance

LiTFSI salt concentration effect to digest lithium polysulﬁdes for high-loading sulfur electrodes

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Journal of Energy Chemistry 2023年第3期78卷 574-581,I0015页

作者： Jin-Kwang Song Moonsoo kim Seongbae Park Young-jun kim SKKU Advanced Institute of Nano Technology(SAINT) Sungkyunkwan UniversitySuwon 16419Republic of Korea Department of Nano Engineering Sungkyunkwan UniversitySuwon 16419Republic of Korea

Sulfur utilization improvement and control of dissolved lithium polysulﬁde(LiPS;Li_(2)S x,2 详细信息

Sulfur utilization improvement and control of dissolved lithium polysulﬁde(LiPS;Li_(2)S x,2

关键词： Lithium-sulfur battery Electrolyte concentration Li2S deposition High-loading sulfur electrode