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Prospective randomized controlled trial evaluating cap-assisted colonoscopy vs standard colonoscopy

World Journal of Gastroenterology 2010年第31期16卷 3905-3910页

作者： Hoi-Poh Tee Crispin Corte Hamdan Al-Ghamdi Emilia Prakoso John Darke Raman Chettiar Wassim Rahman Scott Davison Sean P Griffin Warwick S Selby Arthur J Kaffes Gastroenterology Unit Medical DepartmentHospital Tengku Ampuan AfzanJalan Tanah Putih25100 KuantanPahang Malaysia AW Morrow Gastroenter-ology and Liver Centre Royal Prince Alfred HospitalMissen-den RoadCamperdownNSW 2050Australia Gastroenterology Unit Medical DepartmentQueen Elizabeth HospitalKarung Berkunci No.202988586 Kota KinabaluMalaysia

AIM: To study the significance of cap-fitted colonoscopy in improving cecal intubation time and polyp detection rate. METHODS: This study was a prospective randomized controlled trial conducted from March 2008 to February 2009 in a tertiary referral hospital at Sydney. The primary end point was cecal intubation time and the secondary endpoint was polyp detection rate. Consecutive cases of total colonoscopy over a 1-year period were recruited. Randomization into either standard colonoscopy (SC) or cap-assisted colonoscopy (CAC) was performed after consent was obtained. For cases randomized to CAC, one of the three sizes of cap was used: D-201-15004 (with a diameter of 15.3 mm), D-201-14304 (14.6 mm) and D-201-12704 (13.0 mm). All of these caps were produced by Olympus Medical Systems, Japan. Independent predictors for faster cecal time and better polyp detection rate were also determined from this study. RESULTS: There were 200 cases in each group. There was no signif icant difference in terms of demographic characteristics between the two groups. CAC, when compared to the SC group, had no signif icant difference in terms of cecal intubation rate (96.0% vs 97.0%, P = 0.40) and time (9.94 ± 7.05 min vs 10.34 ± 6.82 min, P = 0.21), or polyp detection rate (32.8% vs 31.3%, P = 0.75). On the subgroup analysis, there was no significant difference in terms of cecal intubation time by trainees (88.1% vs 84.8%, P = 0.40), ileal intubation rate (82.5% vs 79.0%, P = 0.38) or total colonoscopy time (23.24 ± 13.95 min vs 22.56 ± 9.94 min, P = 0.88). On multivariate analysis, the independent determinants of faster cecal time were consultant-performed procedures (P < 0.001), male patients (P < 0.001), non-usage of hyoscine (P < 0.001) and better bowel preparation (P = 0.01). The determinants of better polyp detection rate were older age (P < 0.001), no history of previous abdominal surgery (P = 0.04), patients not having esophagogastroduodenoscopy in the same setting (P = 0.003), trainee-performed procedures (P = 0.01), usage o

关键词： Cap hood Cecum Colonoscopy Cecal intubation Colonic polyps

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Aerodynamic Performance Optmization and Data Mining of a Low Pressure Exhaust hood

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风机技术 2018年第5期60卷 1-11页

作者： Chen-xi Li Xiao-long Wu Pei-yuan Zhu Li-ming Song Jun Li Zhen-ping Feng Institute of Turbomachinery Xi’an Jiaotong UniversityXi’anChina

The design of exhaust hood is a typical high dimensional,expensive computational and black box problem.Multi-Point Search based Efficient Global Optimization(MSEGO)is proposed to solve this problem.MSEGO is used for the aerodynamic performance optimization of a low exhaust hood with non-axisymmetric outer flow guider.After optimization,the static pressure coefficient of the exhaust hood increases by 284.54%,and the aerodynamic performance analysis explains the reason of the improvement.Further,the analysis of variance(ANOVA)as the data mining technique is used to extract information of design space and analyze the influence of variables on the performance.Though aerodynamic performance analysis and data mining,it indicates that non-axisymmetric outer flow guider and the width of outer hood has a significant effect on the aerodynamic performance.Thereby,design lessons are derived and accumulated for the optimization of similar designs.

关键词： Exhaust hood MSEGOAlgorithm Design Optimization Data Mining

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结合形式化的面向对象设计方法与支撑系统

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软件学报 1999年第4期10卷 409-414页

作者：郑明春段会川高波张家重山东师范大学计算机科学系南京大学计算机软件新技术国家重点实验室

为了有效地结合形式化和非形式化设计方法各自的优点，克服其不足之处，以尽可能保证软件设计的质量与可靠性，文章提出了一种将形式化方法与非形式化的面向对象设计方法ＨＯＯＤ（ｈｉｅｒａｒｃｈｉｃａｌｏｂｊｅｃｔ－ｏｒｉｅｎｔ... 详细信息

为了有效地结合形式化和非形式化设计方法各自的优点，克服其不足之处，以尽可能保证软件设计的质量与可靠性，文章提出了一种将形式化方法与非形式化的面向对象设计方法ＨＯＯＤ（ｈｉｅｒａｒｃｈｉｃａｌｏｂｊｅｃｔ－ｏｒｉｅｎｔｅｄｄｅｓｉｇｎ）相结合的途径，并介绍了其机器支撑环境的设计与实现．该途径在对层次式面向对象设计方法ＨＯＯＤ进行必要扩充的基础上，有机地集成了Ｚ语言等形式规约技术．支持这一途径的支撑环境提供了一套方便灵活的图形构筑工具、语法制导的形式语言与文本编辑工具，以及自动检查机制等．

关键词：面向对象 hood 面向对象程序设计支撑系统

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Influence of Hot Band Annealing and Cold Rolling on Texture and Ridging of 430 Stainless Steel Containing Aluminum

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Materials Sciences and Applications 2013年第1期4卷 70-76页

作者： Sudipta Patra Lokesh Kumar Singhal Jindal Stainless Limited Hisar India.

An approach to optimize the processing parameters to get superior ridging resistance and mechanical properties in commercial production of 430 ferritic stainless steel has been studied. Attention was also paid to improve productivity and energy saving without hampering the surface and mechanical property aspects of the material. Hot rolled coils annealed by slow cooling under insulated cover exhibit better ridging resistance than bell annealing treatment with a minor decrease in ductility. Soaking temperature prior to hot rolling has a significant effect on ridging resistance.

关键词： Ridging hood Annealing Bell Annealing Microstructure Texture 430 Stainless Steel

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Computational Thermo-Fluid Dynamic Simulation of a Radiant Off-Gases Cooling System for Copper Smelting in a Pierce Smith Converter

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International Journal of Modern Nonlinear Theory and Application 2014年第5期3卷 236-247页

作者： Yerko Aguilera-Carvajal Sebastián Pérez-Cortés Juan Hurtado-Cruz Erick Morales-Quezada Faculty of Engineering University of Santiago Santiago Chile ESSS Chile Santiago Chile

In copper sulfide concentrates smelting, the off-gases from the Pierce Smith converter (PSC) furnace must be treated to prevent environmental impacts as they are highly corrosive and toxic. The purpose of this research project is to present a methodology for the simulation of a capture and cooling system of the smelting off-gases from a Pierce Smith copper converter, using computational fluid dynamics. Through this methodology, it is possible to obtain a simulation model of the smelting off-gases behavior with an average error of 9.88%. Basically, it demonstrates that the simulated tendencies of the metallurgical off-gases on the cooling hood and chamber can be reliable to predict the thermo-fluid dynamic behavior of the off-gases inside the studied off-gases handling system.

关键词： Capture hood Radiant Cooling System Copper Sulfide Smelting Off-Gases Computational Fluid Dynamics (CFD) Simulation

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层次式面向对象设计方法hood的研究与改进

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计算机系统应用 1998年第6期7卷 22-25页

作者：郑明春张家重高波济南山东师范大学计算机系 250014

本文详细介绍了层次式面向对象设计方法hood的基本概念和设计过程，以及其图形和文本描述语言，然后与其他面向对象设计方法进行了比较，指出了hood方法的优点与不足，进而，提出了一种改进hood的方案。

关键词： hood 面向对象软件系统结构设计方法

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BOYS ON THE hood HYPHY风席卷全球汽车派对的舞步

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汽车生活 2011年第7期 92-99页

作者： Dylan Madd ux Lisa Hix 周晓玲

＂对于玩HYPHY的人来说,超过21岁都似乎太老,无法真正野起来了。＂在加利福尼亚州的东奥克兰,年轻人聚集在YouthUprising（注释1）,一场Turf（注释2）舞大战就此爆发。来势汹汹的带头少年摇头晃脑,舞步像小丑一样滑稽,咧嘴一笑,金色的... 详细信息

＂对于玩HYPHY的人来说,超过21岁都似乎太老,无法真正野起来了。＂在加利福尼亚州的东奥克兰,年轻人聚集在YouthUprising（注释1）,一场Turf（注释2）舞大战就此爆发。来势汹汹的带头少年摇头晃脑,舞步像小丑一样滑稽,咧嘴一笑,金色的牙箍闪闪发亮。而他的对手瘦瘦长长的,抓住自己的腿,像杂技演员那样弯下身子把脑袋从腿间穿过。

关键词： hood 汽车加利福尼亚州杂技演员奥克兰年轻人注释

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Leroy hood率领的系统生物学团队

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生物技术产业 2006年第4期 52-55页

作者：影木准子

以DNA测序仪的肝发而知铙的Leroy hood先生于2000年设立了Institute for Systems Biology。网罗生物学、工学、计算机等不同领域的研究人员140人，挑战系统生物学新领域。“为实现新创意而建立的崭新的组织”（hood先生）的现状追踪。

关键词：系统生物学 hood Systems DNA测序仪研究人员 for 计算机肝

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勇闯十万大山2017 BMWX 之旅

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汽车杂志 2018年第3期 108-111页

作者：严绍健

我跟随BMW X之旅南区挑战赛来到广西十万大山，两天的行程中，60位南区BMWX家族粉丝和我驾驶BMWX1和X5以团队形式进行人与车的500公里野外技能极限挑战。此次挑战的胜出者，还将有机会前往美国参与2018年“hood to Coast越山向海人车接... 详细信息

我跟随BMW X之旅南区挑战赛来到广西十万大山，两天的行程中，60位南区BMWX家族粉丝和我驾驶BMWX1和X5以团队形式进行人与车的500公里野外技能极限挑战。此次挑战的胜出者，还将有机会前往美国参与2018年“hood to Coast越山向海人车接力赛”。

关键词：十万大山 hood BMW 南区家族向海

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Design,Optimization and Verification of CFRP Front hood for Automotive Lightweight

Design,Optimization and Verification of CFRP Front Hood for ...

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2019中国汽车工程学会年会

作者： Gao Cong Liu Chuan Zhang Jinsheng Wang Zhibai Feng Gang Changan Auto Global R＆D Center Changan Automobile Co.LTD

Carbon fiber reinforced plastics（CFRP） have attracted more and more attention in automobile lightweight areas,owing to the outstanding properties including lightweight,high strength,great damping,collision performance and fatigue resistance.However,the design and optimization of CFRP components is mainly controlled by the aerospace and aviation fields,and the design method is not well developed and normalized in the automotive fields.In this paper,the CFRP front hood was designed by CATIA-CPD,and optimized based on the simulation results.Then,the front hood was manufactured by VARI processing,and the performances of the hood were tested and compared with the simulation results.Additionally,to improve pedestrian protection performance of the CFRP hood,the layup scheme was further optimized and the pedestrian protection performance was improved by 31%.In a word,the design and optimization of CFRP front hood were systematically investigated,which will promote the CFRP usage for automobile lightweight.

关键词： automobile lightweight design CFRP hood pedestrian protection

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