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Review of Air Dispersion Modelling Approaches to Assess the Risk of Wind-Borne Spread of Foot-and-Mouth Disease Virus

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Journal of Environmental Protection 2012年第9期3卷 1260-1267页

作者： Kritana Prueksakorn Taehyeung kim Soyoung kim Hyeontae kim Ki Youn kim Wongeun Son Chatchawan Vongmahadlek College of Veterinary Medicine Jeju National University Jeju Korea Department of Bio-Industrial Machinery Engineering Gyeongsang National University (Institute of Agriculture and Life Sciences) Jinju Korea Department of Environmental Engineering Changwon National University Changwon Korea Department of Industrial Health Catholic University of Pusan Busan Korea School of Chemical Engineering King Mongkut’s Institute of Technology Ladkrabang Bangkok Thailand

Foot-and-mouth disease virus (FMDV) is one of the most economically serious veterinary pathogens due to its negative effects on livestock and its highly infectious nature via a variety of transmission paths through oral and inhalation routes. Measures to enhance outbreak management can be designed according to analytical results predicted by mathematical models for wind-borne dispersion, an important path of virus transmission. Accurate atmospheric dispersion models are useful tools for properly determining risk management plans, while inaccurate models may conversely lead to accidental loss in two possible ways. Overly strict measures, e.g., slaughter for too wide an area, can cause severe economic difficulties, including irreversible loss of business operations for a number of farms. On the contrary, inestimable loss potentially caused by lax controls is a persistent threat. In this paper, available modelling procedures for forecasting the spread of FMDV, which have been used since the 1970s, each having its advantages and limitations, are reviewed for the purpose of ensuring suitable application in various conditions of any future emergency cases.

关键词： Foot-and-Mouth Disease Virus (FMDV) Atmospheric Dispersion Model Gaussian Lagrangian Viral Production Model

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FORCED VIBRATION AND SOUND RADIATION OF A RECTANGULAR PLATE WITH VISCOELASTIC BOUNDARY SUPPORTS

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Chinese Journal of Mechanical Engineering 1999年第4期12卷 276-281,316页

作者： Fan Zijie Dept of Automotive Eng.,Qinghua University kim Kwang Joon Dept of Mechanical Eng.,KAIST,Korea Qinghua Univ China

A method for the forced vibration and sound radiation of a rectangular plate with viscoelastic boundary supports is *** method is based on damped complex modes analysis *** the damped complex modes of the plate system,the modal equation of the plate motion becomes completely *** sound radiation pressure is obtained by numerical integration of the Rayleigh *** of the viscoelastic boundary supports on the vibration response and the radiated sound pressure of the vibrating plate are discussed by an example.

关键词： Vibration Viscoelastic damping Supports Sound radiation

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Mesenchymal stem cells ameliorate B-cell-mediated immune responses and increase IL-10-expressing regulatory B cells in an EBI3-dependent manner

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Cellular & Molecular Immunology 2017年第11期14卷 895-908页

作者： Kyung-Ah Cho Jun-Kyu Lee Yu-Hee kim Minhwa Park So-Youn Woo Kyung-Ha Ryu Department of Microbiology School of MedicineEwha Womans UniversitySeoul 07985Republic of Korea Department of Pediatrics School of MedicineEwha Womans UniversitySeoul 07985Republic of Korea

Effector B cells are central contributors to the development of autoimmune disease by activating autoreactive T cells,producing pro-inflammatory cytokines and organizing ectopic lymphoid ***,IL-10-producing regulatory B(Breg)cells have pivotal roles in maintaining immunological tolerance and restraining excessive inflammation in autoinflammatory ***,regulating the equilibrium between antibody-producing effector B cells and Breg cells is critical for the treatment of autoimmune *** this study,we investigated the effect of human palatine tonsil-derived mesenchymal stem cells(T-MSCs)on estradiol(E2)-induced B-cell responses in vivo and in *** of T-MSC into E2-treated mice alleviated B-cell-mediated immune responses and increased the population of IL-10-producing Breg cells.T-MSCs regulated the B-cell populations by producing Epstein–Barr virus(EBV)-induced 3(EBI3),one of the two subunits of IL-35 that is the well-known inducer of Breg *** demonstrate a critical role of EBI3(IL-35)in vitro by depleting EBI3 in T-MSCs and by adding exogenous IL-35 to the culture *** together,our data suggest that IL-35-secreting MSCs may become an attractive therapeutic to treat B-cell-mediated autoimmune diseases via expanding Breg cells.

关键词： autoimmune disease B cells IL-35 mesenchymal stem cells

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Medical Image Compression Method Using Lightweight Multi-Layer Perceptron for Mobile Healthcare Applications

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Computers, Materials & Continua 2022年第1期70卷 2013-2029页

作者： Taesik Lee Dongsan Jun Sang-hyo Park Byung-Gyu kim Jungil Yun Kugjin Yun Won-Sik Cheong Kyungnam University Changwon51767Korea Kyungpook National University Daegu41566Korea Sookmyung Women’s University Seoul04310Korea Electronics and Telecommunications Research Institute Daejeon34129Korea

As video compression is one of the core technologies required to enable seamless medical data streaming in mobile healthcare applications,there is a need to develop powerful media codecs that can achieve minimum bitrates while maintaining high perceptual *** Video Coding(VVC)is the latest video coding standard that can provide powerful coding performance with a similar visual quality compared to the previously developed method that is High Efficiency Video Coding(HEVC).In order to achieve this improved coding performance,VVC adopted various advanced coding tools,such as flexible Multi-type Tree(MTT)block structure which uses Binary Tree(BT)split and Ternary Tree(TT)***,VVC encoder requires heavy computational complexity due to the excessive Ratedistortion Optimization(RDO)processes used to determine the optimalMTT block *** this paper,we propose a fast MTT decision method with two Lightweight Neural Networks(LNNs)using Multi-layer Perceptron(MLP),which are applied to determine the early termination of the TT split within the encoding *** results show that the proposed method significantly reduced the encoding complexity up to 26%with unnoticeable coding loss compared to the VVC TestModel(VTM).

关键词： Mobile healthcare video coding complexity reduction multilayer perceptron VVC intra prediction multi-type tree ternary tree neural network

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Synthesis and in vino Antimalarial Activity of Several Simple Analogues of Peroxyplakoric Acid

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Chinese Journal of Chemistry 2005年第11期23卷 1469-1473页

作者： LIU, He-Hua JIN, Hong-Xia ZHANG, Qi WU, Yi-Kang kim, Hye-Sook WATAYA, Yusuke State Key Laboratory of Bio-organic and Natural Products Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China Faculty of Pharmaceutical Sciences Okayama University Tsuhima Okayama 700-8530 Japan

Several simple analogues of peroxyplakoric acid were synthesized by using Kobayashi＇s method to construct the key 1,2-dioxane core and tested in vitro for antimalarial activity. The scope and limitation of the method... 详细信息

关键词： peroxides spiroketals cyclizations hemiketals

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Sound transducer calibration of ambulatory audiometric system utilizing delta learning rule

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Journal of Central South University 2011年第6期18卷 2009-2014页

作者： kim Kyeong-seop SHIN Seung-won YOON Tae-ho LEE Sang-min LEE Insung RYU Keun ho School of Biomedical Engineering Konkuk University Xiu Solution Co. Ltd. Department of Electronic Engineering Inha University Department of Radio Communication Engineering Chungbuk National University Database/Bioinformatics Lab Chungbuk National University

An efficient calibration algorithm for an ambulatory audiometric test system is proposed. This system utilizes a personal digital assistant (PDA) device to generate the correct sound pressure level (SPL) from an audiometric transducer such as an earphone. The calibrated sound intensities for an audio-logical examination can be obtained in terms of the sound pressure levels of pure-tonal sinusoidal signals in eight-banded frequency ranges (250, 500, 1 000, 2 000, 3 000, 4 000, 6 000 and 8 000 Hz), and with mapping of the input sound pressure levels by the weight coefficients that are tuned by the delta learning rule. With this scheme, the sound intensities, which evoke eight-banded sound pressure levels by 5 dB steps from a minimum of 25 dB to a maximum of 80 dB, can be generated without volume displacement. Consequently, these sound intensities can be utilized to accurately determine the hearing threshold of a subject in the ambulatory audiometric testing environment.

关键词： calibration audiometric system pure-tonal sound sound pressure level heating threshold delta learning rule

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The Impacts of Nonnative Japanese Eelgrass (<i>Zostera japonica</i>) on Commercial Shellfish Production in Willapa Bay, WA

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Agricultural Sciences 2014年第7期5卷 625-633页

作者： kim Patten Long Beach Research and Extension Unit Washington State University Long Beach WA USA

Eelgrass species worldwide are valued for the ecosystem service they provide to estuarine and marine habitats. One species, Zostera japonica, however, has some negative impacts outside its native range and is considered invasive. In Willapa Bay WA, USA, the nonnative eelgrass has expanded to the level where the shellfish industry is concerned about its potential impacts on its livelihood. Studies were conducted using paired plots, Z. japonica controlled with the herbicide imazamox vs. untreated controls, to assess the effects of Z. japonica on Manila clams (Ruditapes philippinarum) and Pacific oysters (Crassostrea gigas). Recruitment of new Manila clams was not affected by Z. japonica. The growth of young clams, total commercial clam harvests, clam quality and clam harvest efficiency, however, were greater on plots where Z. japonica was chemically controlled than where it was not treated. The response of oysters to Z. japonica control varied by site;there was no effect at one site, while the other sites had a 15% increase in shucked meat with Z. japonica control. The potential economic impact of a Z. japonica infestation of a shellfish bed was ~$47,000 ha-1 for Manila clams and $4000 ha-1 for oysters for each crop harvest cycle.

关键词： Shellfish Aquaculture Invasive Eelgrass Manila Clams Pacific Oyster

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Friction characteristics of mechanically exfoliated and CVD-grown single-layer MoS_2

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Friction 2018年第4期6卷 395-406页

作者： Dinh Le Cao KY Bien-Cuong TRAN KHAC Chinh Tam LE Yong Soo kim Koo-Hyun CHUNG School of Mechanical Engineering University of Ulsan Department of Physics and Energy Harvest Storage Research Center University of Ulsan

In this work, the friction characteristics of single-layer MoS2 prepared with chemical vapor deposition （CVD） at three different temperatures were quantitatively investigated and compared to those of single-layer MoS2 prepared using mechanical exfoliation. The surface and crystalline qualities of the MoS2 specimens were characterized using an optical microscope, atomic force microscope （AFM）, and Raman spectroscopy. The surfaces of the MoS2 specimens were generally flat and smooth. However, the Raman data showed that the crystalline qualities of CVD-grown single-layer MoS2 at 800 ℃ and 850 ℃ were relatively similar to those of mechanically exfoliated MoS2 whereas the crystalline quality of the CVD-grown single-layer MoS2 at 900 ℃ was lower. The CVD-grown single-layer MoS2 exhibited higher friction than mechanically exfoliated single-layer MoS2, which might be related to the crystalline imperfections in the CVD-grown MoS2. In addition, the friction of CVD-grown single-layer MoS2 increased as the CVD growth temperature increased. In terms of tribological properties, 800 ℃ was the optimal temperature for the CVD process used in this work. Furthermore, it was observed that the friction at the grain boundary was significantly larger than that at the grain, potentially due to defects at the grain boundary. This result indicates that the temperature used during CVD should be optimized considering the grain size to achieve low friction characteristics. The outcomes of this work will be useful for understanding the intrinsic friction characteristics of single-layer MoS2 and elucidating the feasibility of single-layer MoS2 as protective or lubricant layers for micro- and nano-devices.

关键词： atomic force microscope chemical vapor deposition grain boundary friction mechanical exfoliation MoS2

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Modified endoscopic transnasal orbital apex decompression in dysthyroid optic neuropathy

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Eye and Vision 2021年第1期8卷 183-191页

作者： Yunhai Tu Mingna Xu Andy D.kim Michael T.M.Wang Zhaoqi Pan Wencan Wu The Eye Hospital of Wenzhou Medical University No.270 Xueyuan Xi RoadWenzhouZhejiang 325027P.R.China Department of Ophthalmology New Zealand National Eye CentreThe University of AucklandAucklandNew Zealand

Background:To describe the surgical technique and assess the clinical efficacy and safety of modified endoscopic transnasal orbital apex decompression in the treatment of dysthyroid optic ***:In this retrospective research,forty-two subjects(74 orbits)who underwent modified endoscopic transnasal orbital apex decompression for the treatment of dysthyroid optic neuropathy were *** and postoperative best-corrected visual acuity(BCVA),visual field mean deviation(MD),Hertel exophthalmometry,and new onset diplopia were assessed before and after the *** Wilcoxon test was used for differential *** mixed-models’analyses were conducted to assess the potential predictors for BCVA ***:Postoperatively,the mean BCVA improved from 0.70±0.62 logMAR to 0.22±0.33 *** significantly improved in 69 eyes(93%),remained stable in 4 eyes(5%)and deteriorated in 1 eye(1%).MD of visual fields improved from−13.73±9.22 dB to−7.23±7.04 *** decreased from 19.57±3.38mm to 16.35±*** BCVA,MD of visual fields and medical rectus diameter were independent factors associated with improvements in BCVA(P<0.05)by linear mixed-models’*** patients(42.9%)developed new diplopia ***:Modified endoscopic transnasal orbital apex decompression effectively restores vision in dysthyroid optic neuropathy.

关键词： Endoscopic transnasal orbital decompression Dysthyroid optic neuropathy Thyroid-associated ophthalmopathy Visual acuity Visual field

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A gastrointestinal stromal tumor of the duodenum masquerading as a pancreatic head tumor

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World Journal of Gastroenterology 2007年第24期13卷 3396-3399页

作者： Sung Ho Kwon Hee Jeong Cha Seok Won Jung Byung Chul kim Jae Serk Park In Du Jeong Jong Hwa Lee Yang Won Nah Sung Jo Bang Jung Woo Shin Neung Hwa Park Do Ha kim Division of Gastroenterology Department of Internal Medicine University of Ulsan College of Medicine Ulsan University Hospital Ulsan Korea Department of Pathology University of Ulsan College of Medicine Ulsan University Hospital Ulsan Korea Department of Radiology University of Ulsan College of Medicine Ulsan University Hospital Ulsan Korea Department of Surgery University of Ulsan College of Medicine Ulsan University Hospital Ulsan Korea

Gastrointestinal stromal tumor (GIST) represents the most common kind of mesenchymal tumor that arises from the alimentary tract. GIST is currently defined as a gastrointestinal tract mesenchymal tumor showing CD117 (c-kit protein) positivity at immunohistochemistry. Throughout the whole length of the gastrointestinal tract, GIST arises most commonly from the stomach followed by the small intestine, the colorectum, and the esophagus. Only 3%-5% of GISTs occur in the duodenum, and especially, if GIST arises from the C loop of the duodenum, it can be difficult to differentiate from the pancreas head mass because of its anatomical proximity. Here, we report a case of duodenal GIST, which was assessed as a pancreatic head tumor preoperatively.

关键词： Gastrointestinal stromall tumor Duodenum Pancreas head tumor

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