检索结果-南通市图书馆

Ultrasonographic evaluation of the effect of extracorporeal shock wave therapy on calcific tendinopathy of the rectus femoris tendon:A case report

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World journal of Clinical Cases 2019年第22期7卷 3772-3777页

作者： Chang Han Lee Min-Kyun Oh jun-Il yoo Department of Rehabilitation Medicine Gyeongsang National University School of Medicine and Gyeongsang National University HospitalJinju 52727South Korea Department of Orthopaedic Surgery School of MedicineGyeongsang National University90 ChilamdongGyeongsangnam-doJinju 52727South Korea

BACKGROUND Calcific tendinopathy denotes calcific deposits in a specific *** is also known as calcifying tendinitis,calcifying periarticulitis,or periarticular apatite deposition ***,extracorporeal shock wave therapy(ESWT)has been reported to be effective in relieving and treating pain in calcific *** SUMMARY A 36-year-old female patient suffered from left hip joint pain for six *** pain was increased during abduction of the hip,waking,and jumping.B-mode ultrasonography was performed by a physiatrist with an L12-5 linear transducer.A single session of ESWT was given in the marking area under ultrasound guidance at 4 Hz,2500 shots with intensity of stimulation using energy of 0.1 mj/*** hip pain of the patient slowly decreased within 4 wk after starting the *** six weeks of ESWT,her hip pain was completely ***,the size of calcification showed almost no reduction in simple radiography at the final *** Ultrasonography is a very good modality not only for diagnosing calcified tendinitis by classical appearance,but also for evaluating the effect of ESWT during the follow-up period.

关键词： Rectus femoris Calcific tendinopathy Extracorporeal shock wave therapy Ultrasonography Hip joint Case report

Advances and horizons for artificial intelligence of endoscopic screening and surveillance of gastric and esophageal disease

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Artificial Intelligence in Medical Imaging 2022年第3期3卷 70-86页

作者： Byung Soo yoo Kevin V Houston Steve M D'Souza Alsiddig Elmahdi Isaac Davis Ana Vilela Parth j Parekh David A johnson Department of Internal Medicine Eastern Virginia Medical SchoolNorfolkVA 23507United States Department of Internal Medicine Virginia Commonwealth UniversityRichmondVA 23298United States Division of Gastroenterology Department of Internal MedicineEastern Virginia Medical SchoolNorfolkVA 23507United States

The development of artificial intelligence in endoscopic assessment of the gastrointestinal tract has shown progressive enhancement in diagnostic *** review discusses the expanding applications for gastric and esophageal *** gastric section covers the utility of AI in detecting and characterizing gastric polyps and further explores prevention,detection,and classification of gastric *** esophageal discussion highlights applications for use in screening and surveillance in Barrett's esophagus and in high-risk conditions for esophageal squamous cell ***,these discussions highlight applications for use in assessing eosinophilic esophagitis and future potential in assessing esophageal microbiome changes.

关键词： Artificial intelligence Endoscopy Gastric cancer Gastric polyps Barrett’s esophagus Esophageal cancer

Microstructure,Elastic Modulus and Tensile Properties of Ti-Nb-O Alloy System

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

journal of Materials Science & Technology 2008年第1期24卷 33-36页

作者： H.S.Kim T.Y.Ra I.D.Yeo H.j.Bang Y.G.yoo W.Y.Kim Advanced Materials R＆D Division Korea Institute of Industrial Technology Incheon 406-800 Korea

In the present study Ti-Nb binary alloy system was chosen because it has excellent biocompatibility as well as reasonable mechanical properties,aiming at understanding oxygen content on microstructural formation, elastic modulus and tensile properties in Ti-Nb alloy *** alloy buttons of 50 mm in diameter were prepared by arc melting on a water-cooled copper hearth under an argon gas atmosphere with a non-consumable tungsten *** button ingots were then heat treated in a vacuum atmosphere at 1273 K for 0.5 h followed by water quenching in a specially designed heat treatment ***,elastic modulus and tensile properties were investigated in order to understand the effect of oxygen content in quenched Ti- Nb alloy *** orthorhombic structuredα″martensite was changed to bcc structuredβ-phase with increasing Nb ***,it was found that oxygen makesβ-phase stable in quenched Ti-Nb alloy *** modulus values were sensitive to phase stability of constituent *** strength increased with increasing oxygen *** will be explained by phase formation and stability behavior.

关键词： Ti-Nb-O alloy Phase stability Elastic modulus Mechanical properties

Reduction of Pt Usage in Fuel Cell Electrocatalysts Using Carbon Nanotubes and Non-Pt Metals

在线全文

学校读者我要写书评

暂无评论

复旦学报（自然科学版） 2005年第5期44卷 668-669页

作者： j. Nakamura Y. Nagashima T.Yamazaki T.Matsumoto E. yoo Graduate School of Pure and Applied Sciences University of Tsukuba Tsukuba 305-8573 JapanGraduate School of Pure and Applied Sciences University of Tsukuba Tsukuba 305-8573 JapanGraduate School of Pure and Applied Sciences University of Tsukuba Tsukuba 305-8573 JapanInstitute for Molecular Science Okazaki 444-8585JapanGraduate School of Pure and Applied Sciences University of Tsukuba Tsukuba 305-8573 Japan

The high-priced and limited Pt constitutes a high barrier to commercialization of fuel cells. Pt is essential for the electrode catalyst of polymer electrolyte fuel cells (PEFCs). A reduction in Pt usage is one of the key requirements for the commercialization of fuel cells for use in everyday life, because of its high price and limited availability, and the difficulty of finding suitable substitutes. Non-Pt fuel cell catalysts will decrease the demand for Pt by PEFCs, enabling more Pt to be available for use in other essential products, and make fuel cells more popular[1]. The cheaper Mo2C is known to possess similar catalytic activities and electronic structures to Pt[2]. Carbon black (CB) is widely used as the support for Pt nanoparticles. However, we found that when carbon nanotubes (CNTs) rather than CB are used as the support, the performance is improved, especially below 600 mA/cm2[3,4]. Here, we show that a combination of Mo2C catalyst and carbon nanotubes in the anode provides performance as high as half that of the current PEFCs with Pt catalysts below 600mA/cm2.

关键词：燃料电池碳纳米管碳化物催化物电极

Axial strain enhances osteotomy repair with a concomitant increase in connexin43 expression

在线全文

学校读者我要写书评

暂无评论

Bone Research 2015年第2期3卷 83-91页

作者： Rishi R Gupta Hyunchul Kim Yu-Kwan Chan Carla Hebert Leah Gitajn David j.yoo Robert V O’Toole Adam H Hsieh joseph P Stains Department of Orthopaedics University of Maryland Fischell Department of Bioengineering University of MarylandCollege Park

The mechanical environment is known to influence fracture healing. We speculated that connexin43 （Cx43） gap junctions, which impact skeletal homeostasis, fracture healing and the osteogenic response to mechanical load, may play a role in mediating the response of the healing bone to mechanical strain. Here, we used an established rat fracture model, which uses a 2 mm osteotomy gap stabilized by an external fixator, to examine the impact of various cyclical axial loading protocols （2%, 10%, and 30% strain） on osteotomy healing. We examined the presence of Cx43 in the osteotomy-healing environment and assessed how mechanical strain modulates Cx43 expression patterns in the callus. We demonstrated that increased cyclical axial strain results in increased radiographic and histologic bone formation. In addition, we show by immunohistochemistry that Cx43 is abundantly expressed in the healing callus, with the expression most robust in samples exposed to increased cyclical axial strain. These data are consistent with the concept that an increase in Cx43 expression by mechanical load may be part of the mechanisms by which mechanical forces enhances fracture healing.

关键词： EXPERIMENTAL TIBIAL FRACTURES TISSUE DIFFERENTIATION MECHANICAL-STRESS COMPRESSION OSTEOBLAST MICE

利用多参数MRI和18F-FDG PET特征鉴别胃肠道间质瘤与胃上皮下的良性病变

在线全文

学校读者我要写书评

暂无评论

国际医学放射学杂志 2020年第3期 370-370页

作者： j.yoo S.H.Kim j.K.Han 肖依然 Department of Radiology Seoul National University Hospital

摘要目的探讨多参数MRI与18F-脱氧葡萄糖正电子发射体层成像(PET)是否有助于鉴别胃肠道间质瘤(GIST)和非GIST以及高危GIST和低危GIST。方法本回顾性研究包

关键词：

3.0T三维各向同性肩关节MR关节成像与二维MR关节成像在诊断关节唇病变方面的比较

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2009年第2期32卷 189-190页

作者： j.Y.jung Y.C.yoon S.H.Choi j.W.Kwon j.yoo B.K.Choe 高欣 Department of Radiology and Orthopedic Surgery School of MedicineSungkyunkwan University

目的使用3．0T成像设备比较三维各向同性MR关节成像与二维MR关节成像对肩关节唇病变的诊断准确性。方法机构审查委员会批准本回顾性研究，免除了知情同意书。2006年3月—2007年1月，100例病人经3．0T成像设备进行三维各向同性和二... 详细信息

目的使用3．0T成像设备比较三维各向同性MR关节成像与二维MR关节成像对肩关节唇病变的诊断准确性。方法机构审查委员会批准本回顾性研究，免除了知情同意书。2006年3月—2007年1月，100例病人经3．0T成像设备进行三维各向同性和二维肩关节成像，随后接受关节镜手术。

关键词：成像设备诊断准确性各向同性肩关节 MR 三维二维变方

Whole-genome,transcriptome,and methylome analyses provide insights into the evolution of platycoside biosynthesis in Platycodon grandiflorus,a medicinal plant

在线全文

学校读者我要写书评

暂无评论

Horticulture Research 2020年第1期7卷 1536-1547页

作者： jungeun Kim Sang-Ho Kang Sin-Gi Park Tae-jin Yang Yi Lee Ok Tae Kim Oksung Chung jungho Lee jae-pil Choi Soo-jin Kwon Keunpyo Lee Byoung-Ohg Ahn Dong jin Lee Seung-il yoo In-Gang Shin Yurry Um Dae Young Lee Geum-Soog Kim Chang Pyo Hong jong Bhak Chang-Kug Kim Personal Genomics Institute Genome Research FoundationOsong 28160Korea Genomics Division National Institute of Agricultural Sciences(NAS)Jeonju 54874Korea Theragen Etex Bio Institute Suwon 16229Korea Department of Plant Science Plant Genomics and Breeding Instituteand Research Institute of Agriculture and Life SciencesCollege of Agriculture and Life SciencesSeoul National UniversitySeoul 08826Korea Department of Industrial Plant Science&Technology Chungbuk National UniversityCheongju 28644Korea Department of Herbal Crop Research National Institute of Horticultural and Herbal ScienceRural Development Administration(RDA)Eumseong 27709Korea Clinomics Inc Ulsan 44919Korea Green Plant Institute Yongin 16954Korea Korean Genomics Center(KOGIC) Ulsan National Institute of Science and Technology(UNIST)Ulsan 44919Korea Department of Biomedical Engineering School of Life SciencesUlsan National Institute of Science and Technology(UNIST)Ulsan 44919Korea

Triterpenoid saponins(TSs)are common plant defense phytochemicals with potential pharmaceutical *** grandiflorus(Campanulaceae)has been traditionally used to treat bronchitis and asthma in East *** oleanane-type TSs,platycosides,are a major component of the *** root *** studies show that platycosides exhibit anti-inflammatory,antiobesity,anticancer,antiviral,and antiallergy ***,the evolutionary history of platycoside biosynthesis genes remains *** this study,we sequenced the genome of *** and investigated the genes involved in platycoside *** draft genome of *** is 680.1 Mb long and contains 40,017 protein-coding *** analysis revealed that the CYP716 family genes play a major role in platycoside *** CYP716 gene family of *** was much larger than that of other Asterid *** gene annotation also revealed the expansion ofβ-amyrin synthases(bASs)in ***,which was confirmed by tissue-specific gene *** these expanded gene families,we identified key genes showing preferential expression in roots and association with platycoside *** addition,wholegenome bisulfite sequencing showed that CYP716 and bAS genes are hypomethylated in ***,suggesting that epigenetic modification of these two gene families affects platycoside *** whole-genome,transcriptome,and methylome data of *** provide novel insights into the regulation of platycoside biosynthesis by CYP716 and bAS gene families.

关键词： properties insight roots

Optimization of Casting Process for Heat and Abrasion Resistant Large Gray Iron Castings

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Tsinghua Science and Technology 2008年第2期13卷 152-156页

作者： S. M. yoo Y. S. Cho C. C. Lee j. H. Kim C. H. Kim j. K. Choi Center for E-Design Korea Institute of Industrial Technology Kwanghee Casting Mfg. Co. R&D Center Doosan Engine Co. Ltd.

Numerical simulations were used to optimize the casting design and conditions for large cast iron castings for marine engines, Simulations of the mold filling and solidification sequences were used to analyze the problems of previous casting conditions with marked improvements for large cylinder liner parts, The amount and positions of chills were optimized to improve the mechanical properties and to minimize the shrinkage and micro porosity in the castings. Ultra sonic testing, penetration testing, and mechanical property testing show no defects in the castings with the productivity significantly increased.

关键词： gray cast iron numerical simulation marine engine cylinder liner chill casting design optimization