检索结果-南通市图书馆

World Journal of Clinical Cases 2025年第6期13卷 41-47页

作者： Kuan-Hua Chen ming-yuan Kang Yi-Ting Chang Sheng-Yang Huang Yung-Szu Wu Center for Cardiovascular Disease Taichung Veterans General HospitalTaichung 407219TaiwanChina Department of Anesthesiology Taichung Veterans General HospitalTaichung 407219TaiwanChina Division of Pediatric Surgery Department of SurgeryTaichung Veterans General HospitalTaichung 407219TaiwanChina School of Medicine National Yang Ming Chiao Tung UniversityTaipei 112304TaiwanChina Department of Post-Baccalaureate Medicine National Chung Hsing UniversityTaichung 402202TaiwanChina

BACKGROUND Abdominal aortic aneurysm(AAA)repair often involves significant postoperative pain,traditionally managed with systemic opioids,which can cause undesirable side *** case report explores the novel use of a surgically-initiated rectus sheath block with a catheter-over-needle assembly for pain management in AAA *** SUMMARY A 67-year-old female with hypertension and previous aortic dissection underwent elective open repair of an infrarenal AAA,which had grown from 3.4 cm to 4.3 cm over 14 months.A rectus sheath block was initiated surgically for postoperative pain *** patient reported low pain scores and did not require systemic intravenous opioids,enabling early ambulation and discharge on postoperative day seven without *** preventing complications of systemic opi-oids,the method indicating a promising direction for postoperative pain management in major vascular *** Surgically-initiated rectus sheath block as a valuable tool for managing postoperative pain in AAA repair.

关键词： Abdominal aortic aneurysm Postoperative pain management Rectus sheath block Surgical anesthesia Opioid-sparing techniques Case report

Structure and electrochemical characteristics of Mg–Ti–Ni-based electrode alloys synthesized by mechanical milling

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 Iron and Steel Research International 2021年第10期28卷 1329-1340页

作者： Zhong-hui Hou Xin Wei Wei Zhang Ze-ming yuan Hui Yong Qi-lu Ge Department of Functional Material Research Central Iron and Steel Research InstituteBeijing100081China Inner Mongolia University of Science and Technology Baotou014010Inner MongoliaChina

The vacuum induction melting was adopted to fabricating Mg_(50−x)Ti_(x)Ni_(45)Al_(3)Co_(2)(x=0,1,2,3,4 at.%)composites protected by the high-purity helium ***,the surface modification treatment of the as-cast alloys was carried out by mechanically coating *** amorphous and nanocrystalline Mg_(50−x)Ti_(x)Ni_(45)Al_(3)Co_(2)(x=0–4)+50 wt.%Ni hydrogen storing alloys as the negative materials in batteries were prepared through ball milling,and the influences of milling time and Ti dosage on the structure and electrochemical hydrogen storing behaviors of the corresponding samples were studied in *** electrochemical testing reveals that the as-milled alloys have excellent performances and can finish the electrochemical hydrogenation and dehydrogenation at indoor *** the first cycle without activation,the ball milling alloy obtains the maximum value of discharge *** capacity and cyclic steadiness of the composites conspicuously grow as Ti content and milling duration ***,the capacity retaining rate at 100th cycle and the discharge capacity of 30 h milling samples augment from 53%to 78%and from 435.2 to 567.2 mAh/g with changing Ti content from 0 to *** same performances of the alloy(x=4)are enhanced from 61%to 78%and from 379.9 to 567.2 mAh/g,respectively,with extending milling ***,high rate discharge ability,potential-step measurements,potentiodynamic polarization curves and electrochemical impedance spectrum manifest that the electrochemical kinetics properties can achieve significant amelioration as Ti content varies and milling duration is extended.

关键词： MgNi-based alloy Ti substitution of Mg Surface modification Mechanical milling Electrochemical performance

Laterally pre-compressed SiC tiles against long rod impact

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2018年第5期14卷 585-589页

作者： Bo-yang Luo Wei-liang Goh Zhong Chen Jian-ming yuan Temasek Laboratories Nanyang Technological University School of Materials Science and Engineering Nanyang Technological University

A combined experimental and computational study was carried out to investigate ballistic performance of laterally preload compressed SiC tile against long rod impact. A 100 x 100 by 20 mm thick SiC tile was pushed into a 5 mm thick steel frame at high temperature of 430 ℃ so that after cool down to room temperature, the lateral preload compressive stress was developed in the SiC tiles. Depth of penetration tests of the SiC tiles with and without pre-stress were performed, where tungsten alloy long rods at a nominal velocity of 1240 m/s were launched to hit the SiC tiles backed by the steel blocks. Compared with the SiC tiles without any pre-stress, the pre-compressed SiC tiles were found to reduce significantly the residual penetration in the backing block. Simulations were carried out using the LS-dyna hydrocode,taking account of preload stress. The simulations showed that the lateral preload compression strengthened the intact SiC tiles and dwell occurred in the early penetration stage, eroding the striking long rod efficiently.

关键词： Pre-compressed SiC tile DOP test WHA long rod

Mixed neuroendocrine carcinoma of the gastric stump: A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2021年第27期9卷 8090-8096页

作者： Hui Zhu ming-yuan Zhang Wei-Liang Sun Gun Chen Gastrointestinal Surgery Department The Affiliated People's Hospital of Ningbo UniversityNingbo 315000Zhejiang ProvinceChina Pathologic Department The Affiliated People's Hospital of Ningbo UniversityNingbo 315000Zhejiang ProvinceChina

BACKGROUND Gastric stump cancer,also known as gastric remnant cancer(GRC),is one of the main complications of postgastrectomy syndrome,which usually occurs following Billroth II *** predominant histological subtype of GRC is adenocarcinoma,whereas neuroendocrine carcinoma is relatively *** particular,there are few recently reported cases of mixed neuroendocrine carcinoma(MNEC)in the English ***,we present an extremely rare case of MNEC of the gastric *** SUMMARY A 59-year-old patient presented to our department owing to chronic *** had undergone subtotal gastric resection 35 years prior to admission because of benign peptic *** admission,the patient underwent several tests,and gastroendoscopy showed evidence of Billroth II gastrectomy and local thickening of the gastric stump mucosa at the gastrojejunostomy site,with bile reflux;pathological biopsy revealed *** was then diagnosed with GRC and underwent total gastrectomy,D2 Lymphadenectomy,and esophagojejunal Roux-en-Y *** examination of the specimen identified MNEC comprising MNEC(60%),adenocarcinoma(30%),and squamous cell carcinoma(10%).Postoperative adjuvant chemotherapy was initiated on September 17,*** plus cisplatin was administered for only one cycle because of severe liver function damage,and the regimen was changed to etoposide plus cisplatin on October 10,2020 for five *** patient recovered,with no recurrence after 6 mo of *** Gastric MNECs(GMNECs)is a rare type of *** study presented the unusual occurrence of GMNEC in the gastric *** case will contribute to improvements in our understanding of the carcinogenesis,biology,pathology,and behavior of GMNEC and GRC.

关键词： Gastric remnant cancer Gastric mixed neuroendocrine carcinoma Surgery Gastric stump Billroth II Case report

Hexagonal arrangement of phospholipids in bilayer membranes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics B 2020年第3期29卷 137-141页

作者： Xiao-Wei Chen ming-Xia yuan Han Guo Zhi Zhu Terahertz Technology Innovation Research Institute Shanghai Key Laboratory of Modern Optical SystemTerahertz Science Cooperative Innovation CenterSchool of Optical-Electrical Computer EngineeringUniversity of Shanghai for Science and TechnologyShanghai 200093China

The phospholipid membrane plays a key role in myriad biological processes and phenomena, and the arrangement structure of membrane determines its function. However, the molecular arrangement structure of phospholipids in cell membranes is difficult to detect experimentally. On the basis of molecular dynamic simulations both in a non-destructive way and at native environment, we observed and confirmed that the phospholipids self-assemble to a hexagonal arrangement structure under physiological conditions. The underlying mechanism was revealed to be that there are hexagonal arrangement regions with a lower free energy around each lipid molecule. The findings potentially advance the understanding of biological functions of phospholipid bilayers.

关键词： phospholipid bilayer bio-membrane structure molecular dynamic simulation self-assemble

Hydrodynamics of a dual-module pontoon-net floating breakwater system:Numerical simulations and prototype tests

在线全文

学校读者我要写书评

暂无评论

Journal of Hydrodynamics 2021年第5期33卷 915-927页

作者： Yong Cheng Chun-yan Ji Xue-kang Gu Fa-liHuo Jie Cui Zhi-ming yuan School of Naval Architecture and Ocean Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China China ship Scientific Research Center Wuxi 214082China Department of Naval Architecture Ocean and Marine EngineeringUniversity of StrathclydeGlasgowUK

Floating breakwaters with a mooring system have been widely applied to protect marine infrastructures(e.g.,artificial beach or island,aquaculture farm or marine vessels in harbors)from being destroyed by severe *** this paper,an innovative cylindrical dual pontoon-net floating breakwater was developed to enhance the wave attenuation *** dual-module floating breakwater system was constructed as the prototype for on-site testing.A fully nonlinear time-domain model based on the coupled iterative solutions of the fluid integral equation and the pontoon-net dynamic equations was proposed to simulate the interactions between waves and the floating breakwater *** flow field around the nets was simulated by introducing a porous-media model with Darcy’s law,while the deformation of the flexible nets was solved by using the lumped mass *** instantaneous free surface was captured using the mixed Eulerian-Lagrangian(MEL)approach which employs an improved moving-grid technique based on the spring analysis to re-mesh the instantaneous water surface and the body wetted ***-site tests were also conducted to evaluate wave transmission performance of the floating breakwater system and to validate the numerical *** comparisons show that the numerical solutions are in good agreement with the measured *** effects of incident wave direction,wave period,wave height,net height,net number and net porosity on the hydrodynamic performance of the floating breakwater system were emphatically examined.

关键词： Floating breakwater fully nonlinear simulations on-site tests flexible net wave attenuation moving-grid technique

A Simple Approach for Synthesis of TAPO-11 Molecular Sieve with Controllable Space Group

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2006年第10期17卷 1409-1412页

作者： Yue ming LIU Huan Yan ZHANG Hai Jiao ZHANG Hai Hong WU Peng WU ming yuan HE Shanghai Key Laboratory of Green Chemistry and Chemical Processes Department of Chemistry East China Normal University Shanghai 200062

A TAPO-11 molecular sieve with the space group lcm2 was synthesized successfully. The samples with different space group were controlled simply only by adjusting the crystallization temperature （CT） in the hydrothermal system. In the system of gel with a molar composition of 0.7R- xTiO2： P2O5： Al2O3： 30H2O, where x is 0.01-0.10 and the R is a mixture of di-n-propylamine and diisopropylamine as templates. When CT was between 150-160℃, the calcined sample showed the space group of Icm^2, while it showed Pna21 at CT larger than 190℃. The characterizations of UV-Vis and FT-IR confirmed that Ti was incorporated into the AEL framework successfully.

关键词： TAPO-11 molecular sieve space group synthesis titanosilicate

Endometriosis of the duplex appendix: A case report and review of the literature

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2019年第15期7卷 2094-2102页

作者： ming-yuan Zhu Fa-ming Fei Jing Chen Zhong-Cheng Zhou Bin Wu Yi-Yu Shen Department of General Surgery The Second Affiliated Hospital of Jiaxing University

BACKGROUND Duplication of the appendix is an infrequent congenital malformation with a complex *** horseshoe appendix is a subtype of the duplex appendix and is rarely reported in the *** is a common gynecological disease that rarely occurs in the ***,horseshoe appendix combined with endometriosis has not been previously *** SUMMARY Here,we describe a 44-year-old woman who was admitted with a 1-d history of migratory lower right quadrant *** examination was consistent with the signs of acute *** patient underwent an emergency exploratory *** distal tip of the appendix was in contact with the cecum by another base,or“horseshoe appendix”.In addition,a small intestinal mass and an ovarian mass were ***,appendectomy,partial resection of the small intestine,and right oophorectomy were successively *** histopathology confirmed the diagnosis of acute inflammation of the duplex appendix with endometriosis,small intestine endometriosis,and ovarian *** Surgeons need to be aware of the possibility of the duplex appendix when performing an appendectomy,and this study emphasizes the importance of exploring the entire abdomen.

关键词： Duplex appendix Horseshoe appendix Endometriosis Appendectomy Case report

Effects of Semi-solid Isothermal Heat Treatment on Microstructures and Damping Capacities of Fly Ash Cenosphere/AZ91D Composites

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 2018年第9期31卷 953-962页

作者： En-Yang Liu Si-Rong Yu ming yuan Fan-Guo Li Yan Zhao Wei Xiong College of Mechanical and Electrical Engineering China University of Petroleum(East China) Key Laboratory of Oil and Gas Equipment of Education Ministry Southwest Petroleum University

The fly ash cenosphere/AZ91D composites were successfully prepared and isothermally heat-treated at different tem- peratures for different time. The effects of semi-solid isothermal heat treatment on the microstructures and damping capacities of fly ash cenosphere/AZ91D composites were investigated. With the increase in isothermal temperature or holding time, the small liquid droplets within grains increased in size but decreased in quantity. The average size and shape factor of Mg2Si particles increased with the rise of isothermal temperature. The damping capacities of the composites were improved by isothermal heat treatment. At room temperature, the composites after heat treatment at 520 and 550 ℃ had a higher damping capacity due to interface damping when the strain amplitude was lower than about 8.8 × 10^-5, and the composite after heat treatment at 580 ℃ had a better damping capacity because of the dislocation damping under the condition of high strain amplitude. The damping capacities of the composites increased with the rise of the test temper- ature, and the damping mechanisms varied depending on different test temperatures. The interface damping played an important role when the test temperature was below about 100 ℃, and the dislocation damping and grain boundary damping took effect with the rise of test temperature.

关键词： Fly ash cenosphere Magnesium matrix composite Semi-solid isothermal heat treatment Microstructuralevolution Damping capacity

Experimental study on asphaltene precipitation induced by CO_2 flooding

在线全文

学校读者我要写书评

暂无评论

Petroleum Science 2014年第1期11卷 174-180页

作者： DONG Zhao-xia WANG Jun LIU Gang LIN Mei-qin LI ming-yuan Enhanced Oil Recovery Research Institute China University of Petroleum Beijing Key Laboratory for Greenhouse Gas Storage and Enhanced Oil Recovery Key Laboratory of Enhanced Oil Recovery CNPC

The effects of CO2 pressure,temperature and concentration on asphaltene precipitation induced by CO2 were studied using a high-pressure vessel,interfacial tensiometer,Fourier transform infrared （FTIR） and drill core displacement experimental *** results indicated that the content of asphaltene in crude oil decreased,and the interfacial tension between a model oil and distilled water increased,with an increase of CO2 pressure,decrease of temperature and increase of molar ratio of CO2 to crude oil when CO2 contacted crude oil in the high pressure *** content of asphaltene in sweepout oil and the permeability of test cores both also decreased with an increase of CO2 flooding *** main reason for changes in content of asphaltene in crude oil,in interfacial tension between model oil and distilled water and in the permeability of the test core is the precipitation of asphaltene which is an interfacially active substance in crude *** of asphaltene also blocks pores in the drill core which decreases the permeability.

关键词： CO2 flooding asphaltene precipitation oil-water interfacial tension core permeability