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Individualized treatment guided by endoscopic ultrasound-guided fine-needle aspiration for adrenocortical oncocytoma:A case report
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作者 Han Chen Xue Jing 《World Journal of Clinical Oncology》 2025年第2期158-164,共7页
BACKGROUND Adrenocortical oncocytoma is a rare,mostly benign,nonfunctional tumor that is typically detected incidentally.Its diagnosis is challenging because of the absence of distinctive imaging characteristics,neces... BACKGROUND Adrenocortical oncocytoma is a rare,mostly benign,nonfunctional tumor that is typically detected incidentally.Its diagnosis is challenging because of the absence of distinctive imaging characteristics,necessitating pathological validation.CASE SUMMARY We present a case report of a 35-year-old woman with an adrenal mass located on the left side,where endoscopic ultrasound-guided fine-needle aspiration(EUSFNA)was performed after comprehensive diagnostic assessment.Our results are consistent with those of previously documented cases regarding tumor demographics and anatomical location.Given the limited number of reports on this condition,long-term follow-up is crucial to enhance our understanding of its prognosis.CONCLUSION For patients with adrenocortical oncocytoma,EUS-FNA can enables collection of preoperative tissue specimens leading to suitable treatment strategies. 展开更多
关键词 Adrenocortical oncocytoma Non-functioning tumor Endoscopic ultrasound guided fine-needle aspiration Diagnosis Case report
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海外中医药译写专著的“他塑”研究——以Between Heaven and Earth:A Guide to Chinese Medicine为例
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作者 陈心宇 徐永红 《中医药导报》 2024年第8期190-194,共5页
基于亚马逊平台热销中医专著Between Heaven and Earth:A Guide to Chinese Medicine (《天地之间:中医指南》),举例分析其巧用“取象比类”思维、借用现代医学术语、采用图示辅助理解、创新中医文化表达的4种译写策略,并借助调查问卷... 基于亚马逊平台热销中医专著Between Heaven and Earth:A Guide to Chinese Medicine (《天地之间:中医指南》),举例分析其巧用“取象比类”思维、借用现代医学术语、采用图示辅助理解、创新中医文化表达的4种译写策略,并借助调查问卷佐证这4种译写策略的有效性与可取性,希望通过借鉴学习“他塑”,完善中医国际形象的“自塑”。同时检查“他塑”出现的文化误读,反观“自塑”的不足,从而调整中医传播策略,促进中医药文化的海外传播。 展开更多
关键词 海外中医药译写专著 《天地之间:中医指南》 他塑 自塑 中医药文化传播
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Placement distance of freeway exit advance guide sign and its safety impacts 被引量:3
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作者 郭唐仪 邓卫 +1 位作者 侯建生 Lu John 《Journal of Southeast University(English Edition)》 EI CAS 2010年第4期622-627,共6页
To remedy the empirical pitfalls of current chinese specifications and MUTCD 2009 guidelines in determining the placement distance of freeway exit advance guide signs,the driving maneuver of exiting traffic is analyze... To remedy the empirical pitfalls of current chinese specifications and MUTCD 2009 guidelines in determining the placement distance of freeway exit advance guide signs,the driving maneuver of exiting traffic is analyzed and the factors influencing placement distance are explored.Variables including the number of lanes,lane width,lane-changing time,driver's visual characteristics,sign installation methods and operating speeds on both freeway mainlines and exit ramps are found significant in explaining exit safety.Three different installation methods,namely ground installation,overhead installation and median installation,are introduced and their applicable conditions are given.Models,with the same structure among the three installation methods,are developed to compute the placement distance under different roadway geometric and traffic conditions.Taking overhead installation as an example,simulation results in TSIS-CORSIM show that the proposed distance reduces the number of lane changes in the area from the ramp nose to 500 m upstream by 58.93% compared with current Chinese specifications and 27.35% compared with MUTCD 2009 guidelines.Thus,the distances recommended in this paper have a better safety performance. 展开更多
关键词 FREEWAY advance guide sign placement distance safety impact lane change
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Key Points in the Supervision of Road Landscaping Project——A Case Study of the South 3^(rd) Ring Road in Yanta District of Xi'an City,China 被引量:1
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作者 弓弼 魏代谋 《Journal of Landscape Research》 2011年第6期71-74,共4页
Characteristics of road landscaping were analyzed,as a kind of "linear" landscaping,it could be classified into urban street landscaping,urban ring road and expressway landscaping.Differences between road la... Characteristics of road landscaping were analyzed,as a kind of "linear" landscaping,it could be classified into urban street landscaping,urban ring road and expressway landscaping.Differences between road landscaping projects and other garden landscaping projects or construction projects were analyzed.Landscaping project for the South 3rd Ring Road of Xi'an City(in Yanta District)was taken for an example to summarize construction experience,discuss present conditions and features of garden landscaping supervision in China.The artistic and physiological properties of garden landscaping,as well as the supervision during maintenance period were stressed,but it was also pointed out that garden landscaping supervision in China was actually not given sufficient attention.On this basis,key points in the supervision of road landscaping project were proposed:understanding design ideas,selection of landscape plants,quality control of concealed works,prevention and control of diseases and insects,construction safety management and overall image;only by effectively implementing these key points,a high-quality road landscaping project could be realized to improve the image of a city and beautify its environment. 展开更多
关键词 ROAD LandSCAPING project Construction supervision The South 3rd RING ROAD of Xi’an
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基于Guided BERTopic模型的产业链关键核心技术识别与发展趋势研判--以未来工业互联网为例
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作者 陈升 杨恒 张楠 《科学管理研究》 CSSCI 北大核心 2024年第3期35-44,共10页
产业链关键核心技术不仅是国之重器,而且对推动我国经济的高质量发展和保障国家安全起着至关重要的作用。当前,工业互联网产业链的关键技术发展成为我国的研究重点,该领域的重要性在2023年被提升至国家级重大研究计划。综合收集了1989-2... 产业链关键核心技术不仅是国之重器,而且对推动我国经济的高质量发展和保障国家安全起着至关重要的作用。当前,工业互联网产业链的关键技术发展成为我国的研究重点,该领域的重要性在2023年被提升至国家级重大研究计划。综合收集了1989-2024年中美两国在工业互联网领域的专利数据,基于《关键和新兴技术清单》和《未来工业互联网基础理论与关键技术重大研究计划》,构建了一套工业互联网产业链核心关键技术的种子词库。利用Guided BERTopic模型提取了产业链关键技术主题,并采用Logistic模型评估了这些技术的生命周期,进而对比中美两国的发展情况,提出了针对未来发展的建议。研究结果表明,相比美国,我国在大多数产业链核心技术方面仍处于成长阶段,而美国则已步入技术饱和阶段。展望未来,设备监测系统、设备管理系统、无线通信技术及能耗监测分析系统等被认为是具有巨大发展潜力的技术。研究提出了一种基于政策文件的产业链关键技术识别方法,并通过对工业互联网专利技术的实证分析,为制定相关政策提供了科学指导和建议。 展开更多
关键词 guided BERTopic模型 产业链核心关键技术 工业互联网 中美比较 专利文本 LOGISTIC模型
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Discussion on Semantic and Communicative Translation and Its Application to English Translation of Tour Guide Manuals
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作者 佘晓洁 《英语广场(学术研究)》 2012年第5期32-34,共3页
Semantic translation and communicative translation are two strategies in Newmark's translation theory.This article begins with a discussion on Newmark's two translation methods,and aims at providing a theoreti... Semantic translation and communicative translation are two strategies in Newmark's translation theory.This article begins with a discussion on Newmark's two translation methods,and aims at providing a theoretical basis for the combined application of both methods in translation of tour guide manuals. 展开更多
关键词 semantic translation communicative translation English translation tour guide manuals
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Theoretical Analysis and Numerical Simulation of the Static and Dynamic Characteristics of Hydrostatic Guides Based on Progressive Mengen Flow Controller 被引量:13
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作者 GAO Dianrong ZHENG Dan ZHANG Zuochao 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2010年第6期709-716,共8页
The oil film thickness of oil hydrostatic guide with constant pressure supply based on capillary restrictor is greatly affected by load, and this kind of hydrostatic guide is usually applied to the machine tools with ... The oil film thickness of oil hydrostatic guide with constant pressure supply based on capillary restrictor is greatly affected by load, and this kind of hydrostatic guide is usually applied to the machine tools with moderate load. The static and dynamic characteristics of the guide have been studied by using some theoretical, numerical and experimental approaches, and some methods and measures have been proposed to improve its performances. The hydrostatic guide based on progressive mengen(PM) flow controller is especially suitable for the heavy numerical control(NC) machine tools. However, few literatures about the research on the static and dynamic characteristics of the hydrostatic guides based on PM flow controller are reported. In this paper, the formulae are derived for analyzing the static and dynamic characteristics of hydrostatic guides with rectangle pockets and PM flow controller according to the theory of hydrostatic bearing. On the basis of the analysis of hydrostatic bearing with circular pocket, some equations are derived for solving the static pressure, volume pressure and squeezing pressure which influence the dynamic characteristics of hydrostatic guides with rectangle pocket. The function and the influencing factors of three pressures are clarified. The formulae of amplitude-frequency characteristics and dynamic stiffness of the hydrostatic guide system are derived. With the help of software MATLAB, programs are coded with C++ language to simulate numerically the static and dynamic characteristics of the hydrostatic guide based on PM flow controller. The simulation results indicate that the sensitive oil volume between the outlet of the PM flow controller and the guide pocket has the greatest influence on the characteristics of the guide, and it should be reduced as small as possible when the field working condition is met. Choosing the oil with a greater viscosity is also helpful in improving the dynamic performance of hydrostatic guides. The research work has instructing significance for analyzing and designing the guide with PM flow controller. 展开更多
关键词 PM flow controller rectangle pocket static characteristics dynamic characteristics hydrostatic guides
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Temperature Dependence of Ultrasonic Longitudinal Guided Wave Propagation in Long Range Steel Strands 被引量:6
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作者 LIU Zenghua ZHAO Jichen WU Bin HE Cunfu 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2011年第3期487-494,共8页
Ultrasonic guided wave inspection is an effective non-destructive testing method which can be used for stress level evaluation in steel strands.Unfortunately the propagation velocity of ultrasonic guided waves changes... Ultrasonic guided wave inspection is an effective non-destructive testing method which can be used for stress level evaluation in steel strands.Unfortunately the propagation velocity of ultrasonic guided waves changes due to temperature shift making the prestress measurement of steel strands inaccurate and even sometimes impossible.In the course of solving the problem,this paper reports on quantitative research on the temperature dependence of ultrasonic longitudinal guided wave propagation in long range steel strands.In order to achieve the generation and reception of a chosen longitudinal mode in a steel strand with a helical shaped surface,a new type of magnetostrictive transducer was developed,characterized by a group of thin clips and three identical permanent magnets.Excitation and reception of ultrasonic guided waves in a steel strand were performed experimentally.Experimental results shows that in the temperature range from-4 ℃ to 34 ℃,the propagation velocity of the L(0,1) mode at 160 kHz linearly decreased with increasing temperature and its temperature dependent coefficient was 0.90(m·s-1 ·(℃)-1) which is very close to the theoretical prediction.The effect of dimension deviation between the helical and center wires and the effect of the thermal expansion of the steel strand on ultrasonic longitudinal guided wave propagation were also analyzed.It was found that these effects could be ignored compared with the change in the material mechanical properties of the steel strands due to temperature shift.It was also observed that the longitudinal guided wave mode was somewhat more sensitive to temperature changes compared with conventional ultrasonic waves theoretically.Therefore,it is considered that the temperature effect on ultrasonic longitudinal guided wave propagation in order to improve the accuracy of stress measurement in prestressed steel strands.Quantitative research on the temperature dependence of ultrasonic guided wave propagation in steel strands provides an important basis for the compensation of temperature effects in stress measurement in steel strands by using ultrasonic guided wave inspection. 展开更多
关键词 steel strand ultrasonic guided waves MODE temperature coefficient magnetostrictive transducer
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Comparative study of chitosan/fibroin–hydroxyapatite and collagen membranes for guided bone regeneration in rat calvarial defects: micro-computed tomography analysis 被引量:15
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作者 Jae Min Song Sang Hun Shin +4 位作者 Yong Deok Kim Jae Yeol Lee Young Jae Baek Sang Yong Yoon Hong Sung Kim 《International Journal of Oral Science》 SCIE CAS CSCD 2014年第2期87-93,共7页
This study aimed to utilize micro-computed tomography (micro-CT) analysis to compare new bone formation in rat calvarial defects using chitosan/fibroin-hydroxyapatite (CFB-HAP) or collagen (Bio-Gide) membranes. ... This study aimed to utilize micro-computed tomography (micro-CT) analysis to compare new bone formation in rat calvarial defects using chitosan/fibroin-hydroxyapatite (CFB-HAP) or collagen (Bio-Gide) membranes. Fifty-four (54) rats were studied. A circular bony defect (8 mm diameter) was formed in the centre of the calvaria using a trephine bur. The CFB-HAP membrane was prepared by thermally induced phase separation. In the experimental group (n= 18), the CFB-HAP membrane was used to cover the bony defect, and in the control group (n= 18), a resorbable collagen membrane (Bio-Gide) was used. In the negative control group (n= 18), no membrane was used. In each group, six animals were euthanized at 2, 4 and 8 weeks after surgery. The specimens were then analysed using micro-CT. There were significant differences in bone volume (BV) and bone mineral density (BMD) (P〈O.05) between the negative control group and the membrane groups. However, there were no significant differences between the CFB-HAP group and the collagen group. We concluded that the CFB-HAP membrane has significant potential as a guided bone regeneration (GBR) membrane. 展开更多
关键词 chitosan/fibroin-hydroxyapatite collagen membrane guided bone regeneration micro-computed tomography rat calva rial defect
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Guided Crowd Evacuation:Approaches and Challenges 被引量:6
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作者 Min Zhou Hairong Dong +2 位作者 Petros A.Ioannou Yanbo Zhao Fei-Yue Wang 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2019年第5期1081-1094,共14页
Evacuation leaders and/or equipment provide route and exit information for people and guide them to the expected destinations, which could make crowd evacuation more efficient in case of emergency. The purpose of this... Evacuation leaders and/or equipment provide route and exit information for people and guide them to the expected destinations, which could make crowd evacuation more efficient in case of emergency. The purpose of this paper is to provide an overview of recent advances in guided crowd evacuation. Different guided crowd evacuation approaches are classified according to guidance approaches and technologies. A comprehensive analysis and comparison of crowd evacuation with static signage, dynamic signage, trained leader, mobile devices, mobile robot and wireless sensor networks are presented based on a single guidance mode perspective. In addition, the different evacuation guidance systems that use high-tech means such as advanced intelligent monitoring techniques, AI techniques, computer technology and intelligent inducing algorithms are reviewed from a system’s perspective. Future researches in the area of crowd evacuation are also discussed. 展开更多
关键词 AUXILIARY equipment EVACUATION GUIDANCE system (EGS) guideD crowd EVACUATION LEADER signage
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Balloon dilator controls massive bleeding during endoscopic ultrasound-guided drainage for pancreatic pseudocyst:A case report and review of literature 被引量:4
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作者 Bao-Hua Wang Li-Ting Xie +2 位作者 Qi-Yu Zhao Hua-Jie Ying Tian-An Jiang 《World Journal of Clinical Cases》 SCIE 2018年第11期459-465,共7页
Pancreatic pseudocyst(PPC), a common sequela of acute or chronic pancreatitis, was defined by the revised Atlanta classification as "a collection." Endoscopic ultrasound(EUS)-guided drainage is often conside... Pancreatic pseudocyst(PPC), a common sequela of acute or chronic pancreatitis, was defined by the revised Atlanta classification as "a collection." Endoscopic ultrasound(EUS)-guided drainage is often considered a standard first-line therapy for patients with symptomatic PPC. This effective approach exhibits 90%-100% technical success and 85%-98% clinical success. Bleeding is a deadly adverse event associated with EUS-guided drainage procedures, and the bleeding rate ranges from 3% to 14%. Hemostasis involves conservative treatment, endoscopy, interventional radiology-guided embolization and surgery. However, few studies have reported on EUSguided drainage with massive, multiple hemorrhages related to severe pancreatogenic portal hypertension(PPH). Thus, the aim of this case report was to present a case using a balloon dilator to achieve successful hemostasis for PPH-related massive bleeding in EUSguided drainage of PPC. To our knowledge, this method has not been previously reported. 展开更多
关键词 ENDOSCOPIC ultrasound guided BLEEDING Pancreatic PSEUDOCYST BALLOON compression Novel HEMOSTASIS
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Problems of Rural Food Safety and Strategies of Constructing Supervision System 被引量:7
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作者 XIAO Yue-qiang 《Asian Agricultural Research》 2011年第7期54-57,79,共5页
This paper expounds the practical necessity of constructing diversified rural food safety supervision system as follows: it is the necessary requirements of guaranteeing people's health and life safety; it is an i... This paper expounds the practical necessity of constructing diversified rural food safety supervision system as follows: it is the necessary requirements of guaranteeing people's health and life safety; it is an important component of governmental function of social management and the logical extension of administrative responsibilities; it is the basis of maintaining order of rural society and constructing harmonious society. The main problems existing in the supervision of rural food safety are analyzed as follows: first, the legislative work of rural food safety lags behind to some extent; second, the supervision of governmental departments on rural food safety is insufficient; third, the industrial supervision mechanism of rural food security is not perfect; fourth, the role of rural social organizations in supervising food safety is limited; fifth, the farmers' awareness of food safety supervision is not strong. Based on these problems, the targeted strategies of constructing diversified rural food safety supervision system are put forward as follows: accelerate the legislation of rural food safety, and ensure that there are laws to go by; give play to the dominant role of government, and strengthen administrative supervision on rural food safety; perfect industrial convention of rural food safety, and improve industrial supervision mechanism; actively support the fostering of social organizations, and give play to the role of supervision of organizations; cultivate correct concept of rights and obligations of farmers, and form awareness of food safety supervision. 展开更多
关键词 Rural food safety supervision Main problems System construction China
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Isolation and characterization of anti-diabetic component(bioactivity-guided fractionation) from Ocimum sanctum L.(Lamiaceae) aerial part 被引量:2
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作者 Raju Patil Ravindra Patil +1 位作者 Bharati Ahirwar Dheeraj Ahirwar 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2011年第4期278-282,共5页
Objective:To isolate and characterize antidiabetic component(bioactivity-guided fractionation) from hydro alcoholic extract of Ocimum sanctum(O.sanctum) aerial part.Methods:Ten fractions(F1 - F10) were isolated ... Objective:To isolate and characterize antidiabetic component(bioactivity-guided fractionation) from hydro alcoholic extract of Ocimum sanctum(O.sanctum) aerial part.Methods:Ten fractions(F1 - F10) were isolated from hydro alcoholic extract of O.sanctum aerial part by column chromatography.All the fractions Fl to F10 were screened for antidiabetic activity in alloxan induced diabetic rats by estimating serum glucose level and lipid parameters.The isolated bioactive component was elucidated on the basis of extensive spectroscopic(UV,IR,MS,<sup>1</sup>H and <sup>13</sup>C NMR) data analysis.Results:The bioactive fraction(F5) was found to be potent antidiabetic by ameliorating glucose and lipid parameters(total cholesterol,triglycerides,low and high density lipoprotein cholesterol).The extensive spectroscopic data analysis reveals that,the isolated bioactive compound elucidated as tetracyclic triterpenoid[16-Hydroxy-4,4,10,13-tetramethyl- 17-(4-methyI-pentyl)-hexadecahydro-cyclopenta[a]phenanthren-3-one].Conclusions:Our present study concluded that,tetracyclic triterpenoid isolated from aerial part of O.sanctum has a great anti-diabetic potential. 展开更多
关键词 OCIMUM sanctum Diabetes Bioactivity guideD FRACTIONATION
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Fluorescence image-guided lymphadenectomy using indocyanine green and near infrared technology in robotic gastrectomy 被引量:4
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作者 Jacopo Desiderio Stefano Trastulli +4 位作者 AlessANDro Gemini Domenico Di Nardo Giorgio Palazzini Amilcare Parisi Vito D'ANDrea 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 2018年第5期568-570,共3页
In recent years, some researchers have tried to find a way to improve the surgical identification of the lymphatic drainage routes and lymph node stations during radical gastrectomy, thus starting a new research front... In recent years, some researchers have tried to find a way to improve the surgical identification of the lymphatic drainage routes and lymph node stations during radical gastrectomy, thus starting a new research frontier in this field called "navigation surgery". Among the different reported solutions, the introduction of the indocyanine green (ICG) has drawn attention for its characteristics, a fluorescence dye that can be detected in the near infrared spectral band (NIR). A fluorescence imaging technology has been integrated in the latest version of the Da Vinci robotic system and surgeons have extensively reported their experiences in colorectal and hepato-biliary surgery for tumors, vascular and lymphatic structures visualization. However, up to date, the combined use of fluorescence imaging and robotic technology has not been adequately investigated during lymphadenectomy in gastric cancer. 展开更多
关键词 Gastric cancer fluorescence guided surgery robotic surgery
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Preparation and Characterization of Chitosan/β-GP Membranes for Guided Bone Regeneration 被引量:4
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作者 崔军 徐欣 孙康宁 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2011年第2期242-246,共5页
Bioabsorbable chitosan/β-glycerol phosphate (CS/β-GP) composite membranes were fabricated through a relatively PH neutral and mild sol-gel process for guided bone regeneration (GBR).Their structural properties,m... Bioabsorbable chitosan/β-glycerol phosphate (CS/β-GP) composite membranes were fabricated through a relatively PH neutral and mild sol-gel process for guided bone regeneration (GBR).Their structural properties,morphology,and tensile strength were investigated.FTIR and XRD analyses indicated that there were chemical bonds between the CS andβ-GP.SEM analysis revealed that the CS/β-GP composite membranes had a porous structure both at the surface and in sublayers.Even though the incorporation ofβ-GP in the CS matrix decreased the initial tensile strength of the membrane,the CS/β-GP membranes were still fit for GBR application with their tensile strength of roughly 1MPa.The concentration ofβ-GP was proportional to the pore size and thickness but was inversely proportional to the tensile strength of the CS/β-GP membrane.The present findings indicate that,based on its characteristics,the CS/β-GP composite membrane is a potential bioresorbable membrane for use in guided bone regeneration. 展开更多
关键词 CHITOSAN β-glycerol phosphate guided bone regeneration MEMBRANE thermo-sensitive hydrogel
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Effects of argon gas flow rate and guide shell on oxygen concentration in Czochralski silicon growth 被引量:3
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作者 REN Bingyan ZHAO Long +4 位作者 ZHAO Xiuling WANG Huixian CAO Zhongqian ZHU Huimin FU Hongbo 《Rare Metals》 SCIE EI CAS CSCD 2006年第1期7-10,共4页
φ200 mm silicon single crystals were grown in the φ450 mm hot zone of a Czochralski (CZ) furnace. By modifying the pattern and the velocity of the argon flow, the silicon single crystals with different oxygen conc... φ200 mm silicon single crystals were grown in the φ450 mm hot zone of a Czochralski (CZ) furnace. By modifying the pattern and the velocity of the argon flow, the silicon single crystals with different oxygen concentrations were obtained. Through numerical simulation, the velocity of the argon gas flow was plotted for the first time. The experiment resuits were analyzed and the optimum condition of the argon flow with the lowest oxygen concentration was obtained. 展开更多
关键词 inorganic non-metal material CZSI numerical simulation guide shell oxygen concentration
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Computer-aided Design and Custom-made Guide in Corrective Osteotomy for Complex Femoral Deformity 被引量:4
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作者 柴伟 许猛 +4 位作者 张国强 张立海 苟文隆 倪明 陈继营 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2013年第3期398-405,共8页
Summary: Preoperative planning of corrective osteotomy with traditional radiography has limitations in regards to determining the ideal osteotomy location and orientation in three-dimensional femoral de- formities. T... Summary: Preoperative planning of corrective osteotomy with traditional radiography has limitations in regards to determining the ideal osteotomy location and orientation in three-dimensional femoral de- formities. Though a successful operation can be planned preoperatively, intraoperative contingencies might adhere to the procedural plan in the performance of operation. To efficiently perform a planned procedure, proposed is a design to implement three-dimensional reconstruction photography, based on computer-tomography (CT) scan. A custom-made guide was designed to navigate the osteotomy as planned, and additionally, a personalized intramedullary nail was used for fixation after osteotomy. Three-dimensional (3D) photography of deformed femur was established based on the CT dataset and transferred into 3D photography processing software for further planning. Osteotomy planes were de- signed and adjusted at deformity sites to correct the 3D deformities. The methodology of a custom-made osteotomy guide was introduced in femoral corrective osteotomy, for the first time, to navigate the op- eration as planned. After the virtual osteotomy and reduction of bone segments, the parameters of a custom-made intramedullary nail were measured for manufacturing. Findings Virtual operation in computer shows complete correction of the 3D deformity. The osteotomy guide, obtained by rapid-prototyping techniques, navigates mimicking surgery on rapid-prototyping model of the involved femur as planned. Internal fixation was achieved using the custom-made intramedullary nail. Interpreta- tion three-dimensional visualization introduces an advantage in preoperative planning for corrective os- teotomy of 3D femoral deformity, and the custom-made osteotomy guide is crucial to realize such a de- liberate plan during the actual procedures. The internal fixator, such as an intramedullary nail, can be modified or personalized for fixation in unique cases. 展开更多
关键词 compater-aided design femoral deformity corrective osteotomy custom-made guide in- tramedullary nail
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Tumors and new endoscopic ultrasound-guided therapies 被引量:4
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作者 Silvia Carrara Maria Chiara Petrone +1 位作者 Pier Alberto Testoni Paolo Giorgio Arcidiacono 《World Journal of Gastrointestinal Endoscopy》 CAS 2013年第4期141-147,共7页
With the advent of linear echoendoscopes, endoscopic ultrasound (EUS) has become more operative and a new field of oncological application has been opened up. From tumor staging to tissue acquisition under EUS-guided ... With the advent of linear echoendoscopes, endoscopic ultrasound (EUS) has become more operative and a new field of oncological application has been opened up. From tumor staging to tissue acquisition under EUS-guided fine-needle aspiration, new operative procedures have been developed on the principle of the EUS-guided puncture. A hybrid probe combining radiofrequency with cryotechnology is now available, to be passed through the operative channel of the echoendoscope into the tumor to create an area of ablation. EUS-guided fine-needle injection is emerging as a method to deliver anti-tumoral agents inside the tumor. Ethanol lavage, with or without paclitaxel, has been proposed for the treatment of cystic tumors in non-resectable cases and complete resolution has been recorded in up to 70%-80%. Many other chemical or biological agents have been investigated for the treatment of pancreatic adenocarcinoma: activated allogenic lymphocyte culture (Cytoimplant), a replication-deficient adenovirus vector carrying the tumor necrosis factor-α gene, or an oncolytic attenuated adenovirus (ONYX-015). The potential advantage of treatment under EUS control is the real-time imaging guidance into a deep target likethe pancreas which is extremely difficult to reach by a percutaneous approach. To date there are no randomized controlled trials to confirm the real clinical benefits of these treatments compared to standard therapy so it seems wise to reserve them only for experimental protocols approved by ethics committees. 展开更多
关键词 ENDOSCOPIC ULTRASOUND Pancreatic cancer ENDOSCOPIC ULTRASOUND guided ablation Alcohol INJECTION Anti-tumoral INJECTION
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Research on the Status Quo and Supervision Mechanism of Food Safety in China 被引量:4
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作者 Shengzhong DONG Fangxu XU +2 位作者 Siyuan TAO Longkun WU Xingang ZHAO 《Asian Agricultural Research》 2018年第2期32-33,38,共3页
Food safety supervision mechanism is a strong guarantee to promote the smooth implementation of China's food safety laws and regulations,and it is implemented through legal,administrative,economic,moral and other ... Food safety supervision mechanism is a strong guarantee to promote the smooth implementation of China's food safety laws and regulations,and it is implemented through legal,administrative,economic,moral and other integrated policy instruments,as well as media publicity,quality traceability,network tracking,information disclosure and other non-administrative means. Along with strengthening supervision and control means,the people's food safety in China is safeguarded,and the healthy development of the food industry is promoted. 展开更多
关键词 Food safety supervision mechanism Regulatory system
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Real-time-guided bone regeneration around standardized critical size calvarial defects using bone marrow-derived mesenchymal stem cells and collagen membrane with and without using tricalcium phosphate: an in vivo microcomputed tomographic and histologic e 被引量:3
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作者 Khalid Al-Hezaimi Sundar Ramalingam +6 位作者 Mansour Al-Askar Aws S ArRejaie Nasser Nooh Fawad Jawad Abdullah Aldahmash Muhammad Atteya Cun-Yu Wang 《International Journal of Oral Science》 SCIE CAS CSCD 2016年第1期7-15,共9页
The aim of the present real time in vivo micro-computed tomography (pCT) and histologic experiment was to assess the efficacy of guided bone regeneration (GBR) around standardized calvarial critical size defects ... The aim of the present real time in vivo micro-computed tomography (pCT) and histologic experiment was to assess the efficacy of guided bone regeneration (GBR) around standardized calvarial critical size defects (CSD) using bone marrow-derived mesenchymal stem cells (BMSCs), and collagen membrane (CM) with and without tricalcium phosphate (TCP) graft material. In the calvaria of nine female Sprague-Dawley rats, full-thickness CSD (diameter 4.6 mm) were created under general anesthesia. Treatment-wise, rats were divided into three groups. In group 1, CSD was covered with a resorbable CM; in group 2, BMSCs were filled in CSD and covered with CM; and in group 3, TCP soaked in BMSCs was placed in CSD and covered with CM. All defects were closed using resorbable sutures. Bone volume and bone mineral density of newly formed bone (NFB) and remaining TCP particles and rate of new bone formation was determined at baseline, 2, 4, 6, and 10 weeks using in vivo pCT. At the lOth week, the rats were killed and calvarial segments were assessed histologically. The results showed that the hardness of NFB was similar to that of the native bone in groups I and 2 as compared to the NFB in group 3. Likewise, values for the modulus of elasticity were also significantly higher in group 3 compared to groups 1 and 2. This suggests that TCP when used in combination with BMSCs and without CM was unable to form bone of significant strength that could possibly provide mechanical "lock" between the natural bone and NFB. The use of BMSCs as adjuncts to conventional GBR initiated new bone formation as early as 2 weeks of treatment compared to when GBR is attempted without adiunct BMSC therapy. 展开更多
关键词 bone marrow-derived mesenchymal stem collagen membrane critical size defect guided bone regeneration tricalciumphosphate
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