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Characteristics and prognosis of small bowel tumors:A retrospective study

World Journal of Clinical Cases 2024年第34期12卷 6696-6704页

作者： Fang-Chen Liu Ching-Hsiang Wang Peng-Jen Chen Yu-Lueng Shih Hsuan-Hwai Lin Jung-Chun Lin Wei-Kuo Chang Tsai-Yuan Hsieh Gen-Min Lin Tien-Yu Huang Division of Gastroenterology Department of Internal MedicineTri-Service General HospitalNational Defense Medical CenterTaipei 11490Taiwan Department of Internal Medicine Taoyuan Armed Forces General HospitalTaoyuan 325208Taiwan Department of Medicine Tri-Service General Hospital and National Defense Medical CenterTaipei 114Taiwan Department of Medicine Hualien Armed Forces General HospitalHualien 970Taiwan Taiwan Association for the Study of small Intestinal Diseases Taoyuan 33305Taiwan

BACKGROUND small bowel tumors(SBTs)are a heterogeneous group of difficult-to-diagnose tumors that account for 2%-5%of all gastrointestinal ***-balloon enteroscopy greatly enhances the diagnosis and treatment of ***,few epidemiological studies have been conducted in Taiwan to determine the clinical profile of *** To investigate the clinical characteristics,managements and prognosis of SBTs in a medical center in *** The study enrolled 51 patients aged 58.9±8.8 years(range,22-93)diagnosed with SBTs from November 2009 to July *** retrospectively recorded clinical characteristics,indications,endoscopic findings,pathological results,management,and outcomes for further *** A male preponderance was observed(56.8%).The most common indications were suspected small intestinal tumors(52.9%)and obscure gastrointestinal bleeding(39.2%).The most common tumor location was the ileum(41.2%).The performance of imaging studies(P=0.004)and the types of findings(P=0.005)differed significantly between malignant and benign *** most frequent imaging finding was a small intestinal mass(43.1%).The top three malignant tumor types were gastrointestinal stromal tumors(GISTs),adenocarcinomas,and ***,the proportions of benign and malignant tumors were 27.5%and 72.5%,*** survival rates of patients with malignant tumors in the GIST and non-GIST groups differed significantly(P=0.015).Kaplan–Meier survival analysis showed a significant difference in survival between patients in the malignant and benign groups(P=0.04).All patients with lymphoma underwent chemotherapy(n=7/8,87.5%),whereas most patients with GISTs underwent surgery(n=13/14,92.8%).CONCLUSION Patients with GISTs have a significantly higher survival rate than those with other malignant ***,a large-scale nationwide study is warranted to evaluate the population-based epidemiology of SBTs.

关键词： Gastrointestinal bleeding Intestinal neoplasms Single-balloon enteroscopy,survival rate

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small Hydropower Contributes to Poverty Reduction and Rural Integrated Development in China

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small Hydro Power News 2005年第80期22卷 2-8页

作者： CHENGXIALEI Hangzhou Regional Center (Asia-Pacific) for small Hydro Power Hangzhou China

Over the past 50 add years, outstanding achievements have been made in the development of rural small hydropower (SLIP) and electrification in China. By the end of 2003,42,221 SHP plants with a total installed capacity of 28,489 MW have been constructed and under *** of the country's territory, and one quarter of population of the whole nation are now accessible to SHP.

关键词：小型水力发电农村建设中国电气化建设

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Environmental Integration of small Hydropower Development

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small Hydro Power News 2006年第2期23卷 6-14页

作者： ZHAO Jianda Hangzhou：Regional Centre（Asia-Pacific）for small Hydro Power Hangzhou China

On the basis of cooperative research with European professionals, problems relating to environmental and ecological protection were discussed while small hydropower development in China currently was introduced in this paper. Guidelines of small hydropower development dealing with environmental protection were sug- gested hereby. Various specific technical environmental solutions focusing on small hydropower development applied in European and other developed countries were also introduced in this paper. Main environmental solutions are discussed as follows： integrated design should be advocated during plan/design stage,＂ ecohydraulic engineering and its utilization in SHP design and construction; effective technical approaches to relieve and eliminate the impact of river interception and fix the reasonable minimum biological flow; environment-friendly mitigation and compensation measures for high/low-head hydropower schemes applied in diversion works, intake, nature-like fish-passes, penstock and powerhouse design; study and application of the new technology, material and equipments; launching renovation of environmental protection in existing stations; emphasiz- ing public participation and their acceptability for the SHP environment; coordinated inter-disciplinary study at national level, etc. Two case studies in Sweden and Australia are given here.

关键词： small hydropower Hydropower potential with environmental constraints Entironment Environmental integration Integrated design Minimum biological flow Nature-like fish-passes Solution European China Case study

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Progressive prediction method for failure data with small sample size

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航空动力学报 2011年第9期26卷 2049-2053页

作者： WANG Zhi-hua FU Hui-min LIU Cheng-rui Research Center of small Sample Technology Beijing University of Aeronautics and Astronautics Beijing 100191 China Science and Technology on Space Intelligent Control Laboratory Beijing Institute of Control Engineering Beijing 100191 China

The small sample prediction problem which commonly exists in reliability analysis was discussed with the progressive prediction method in this *** modeling and estimation procedure,as well as the forecast and confidence limits formula of the progressive auto regressive(PAR) method were discussed in great *** model not only inherits the simple linear features of auto regressive(AR) model,but also has applicability for nonlinear *** application was illustrated for predicting the future fatigue failure for Tantalum electrolytic *** results of PAR model were compared with auto regressive moving average(ARMA) model,and it can be seen that the PAR method can be considered good and shows a promise for future applications.

关键词： failure data forecast system reliability small sample progressive prediction nonlinear system

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Fuzzy integral based measurement and assessment of medium and small enterprises'product innovation

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Journal of Harbin Institute of Technology(New Series) 2003年第3期10卷 278-283页

作者：毕克新张铁柱孙金花冯英浚 Colloge of Economic management Harbin University of Science and Technology Harbin 150080China College of Management Harbin Institute of Technology Harbin 150001 China College of Management Harbin Institute of Technology Harbin 150001 China fuzzy integral based way of measurement assessment has been established by using linguistic variables and combining fuzzy integral with hierarchy analysis for measurement of medium and small enterprises' product innovation. The conclusions drawn from analyses made with 20 medium and small enterprises provide bases for governments to formulate applicable policies and for medium and small enterprises to enhance their product innovation.

A fuzzy integral based way of measurement assessment has been established by using linguistic varia-bles and combining fuzzy integral with hierarchy analysis for measurement of medium and small enterprises'product innovation. The conclusions drawn from analyses made with 20 medium and small enterprises providebases for governments to formulate applicable policies and for medium and small enterprises to enhance theirproduct innovation.

关键词： medium and small enterprises (MSE) product innovation measurement and assessment fuzzy integral

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Visualization Investigation on Flowing Condensation in Horizontal small Channels with Liquid Separator

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Journal of Thermal Science 2018年第1期27卷 48-54页

作者： ZHANG Xuan JIA Li DANG Chao PENG Qi Institude of Thermal Engineering School of MechanicalElectronic and Control EngineeringBeijing Jiaotong UniversityBeijing 100044China Beijing key laboratory of flow and heat transfer of phase changing in micro and small scale Beijing 100044China

A simultaneous visualization and measurement experiment was carried out to investigate condensation flow pat- terns and condensing heat transfer characteristics of refrigerant R14 lb in parallel horizontal multi-channels with liquid-vapor separator. The hydraulic diameter of each channel was 1.5 mm and the channel length was 100 ram. The refrigerant vapor flowing in the small channels was cooled by cooling water. The parallel horizontal mul- ti-channels were covered with a transparent silica glass for visualization of flow patterns. Experiments were per- formed at different inlet superheat temperatures （ranging from 3~C to 7~C）. Mass velocity was in the range of 82.37 kg mZs1 to 35.56 kg m-2s1. It was found that there were three different flow patterns through the mul- ti-channels with the increase of mass velocity. The flow patterns in each channel pass almost tended to be same and all of them were annular flows.＇ The efficiency of the liquid-vapor separator with U-type was related to vapor mass velocity and the pressure in the small channels. It was also found that the heat transfer coefficient increased with the increase of the mass velocity while the cooling water mass flow rate increased. It increased to a top point and then decreased. It increased with the increase of superheat in the low superheat temperature region.

关键词： condensation visualization multi-channels liquid-vapor separation

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Experimental Study on Flow Boiling of Deionized Water in a Horizontal Long small Channel

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Journal of Thermal Science 2018年第2期27卷 157-166页

作者： HUANG Qian JIA Li DANG Chao YANG Lixin Institute of Thermal Engineering School of Mechanical Electronic and Control Engineering Beijing Jiaotong University Beijing 100044 China Beijing Key Laboratory of Flow and Heat Transfer of Phase Changing in Micro and small Scale Beijing 100044 China

In this paper,an experimental investigation on the flow boiling heat transfer in a horizontal long mini-channel was carried out. The mini-channel was with 2 mm wide and 1 mm deep and 900 mm long. The material of the mini-channel was stainless. The working fluid was deionized water. The experiments were conducted with the conditions of inlet pressure in the range of 0.2~0.5 MPa, mass flux in the range of 196.57-548.96 kg/m2 s, and the outlet vapor quality in the range of 0.2 to 1. The heat flux was in the range of 292.86 kW/m2 to 788.48 kW/m2,respectively. The influences of mass flux and heat flux were studied. At a certain mass flow rate, the local heat transfer coefficient increased with the increase of the heat flux. If dry-out occurred in the mini-channel, the heat transfer coefficient decreased. At the same heat flux, the local heat transfer coefficient would depend on the mass flux. It would increase with the mass flux in a certain range,and then decrease if the mass flux was beyond this range. Experimental data were compared with the results of previous studies. Flow visualization and measurements were conducted to identify flow regime transitions. Results showed that there were eight different kinds of flow patterns occurring during the flow boiling. It was found that flow pattern had a significant effect on heat transfer.

关键词： Flow boiling Long mini-channel Visualization Evaporator Heat transfer coefficient

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Expatiation on small Towns : A Solid Foundation for the Research and Policy-Making of small Towns in China

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China City Planning Review 2018年第1期27卷 76-78页

作者： Peng Zhenwei Li Min College of Architecture and Urban Planning Tongji University Academic Committee of small Towns Planning of Urban Planning Society of China

Expatiation on small TownsAuthors:Zhao Hui et ***:2017Publisher:China Architecture and Building Press ISBN:9787112211036(285 pages,in Chinese)Expatiation on small Towns concentrates on the four parts of smalltowns:people,life,economy,and space,the most crucial elementsthat can directly reflect the development of small towns in *** be said that this is an innovative research outcome on small townsin China over the years.

关键词： Expatiation on small Towns A Solid Foundation for the Research and Policy-Making of small Towns in China

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small and Medium Enterprises and Global Risks: Evidence from Manufacturing SMEs in Turkey

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International Journal of Disaster Risk Science 2020年第1期11卷 59-73页

作者： Ali Asgary Ali Ihsan Ozdemir Hale Ozyürek Disaster and Emergency Management School of Administrative StudiesYork UniversityTorontoON M3J 1P3Canada Business Administration Department Business SchoolAnkara Yildirim Beyazit UniversityEsenboga CampusAnkaraTurkey KOSGEB(small and Medium Industry Development Organization) AnkaraTurkey

This study investigated how small and medium enterprises(SMEs) in a country perceive major global risks. The aim was to explore how country attributes and circumstances affect SME assessments of the likelihood,impacts, and rankings of global risks, and to find out if SME risk assessment and rankings differ from the global rankings. Data were gathered using an online survey of manufacturing SMEs in Turkey. The results show that global economic risks and geopolitical risks are of major concern for SMEs, and environmental risks are at the bottom of their ranking. Among the economic risks, fiscal crises in key economies and high structural unemployment or underemployment were found to be the highest risks for the SMEs. Failure of regional or global governance, failure of national governance, and interstate conflict with regional consequences were found to be among the top geopolitical risks for the SMEs. The SMEs considered the risk of largescale cyber-attacks and massive incident of data fraud/theft to be relatively higher than other global technological *** social instability and failure of urban planning were among the top societal risks for the SMEs. Although the global environmental and disaster risks were ranked lowest on the list, man-made environmental damage and disasters and major natural hazard-induced disasters were ranked the highest among this group of risks. Overall, the results show that SMEs at a country level, for example Turkey, perceive global risks differently than the major global players.

关键词： Global risks Risk assessment Risk matrix small and medium enterprises Turkey

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Radiographic and Ultrasonographic Findings in Three Surgically Confirmed Cases of small Intestinal Ischemia Related to Mesenteric Volvulus or Intestinal Torsion in Dogs

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Open Journal of Veterinary Medicine 2017年第9期7卷 99-110页

作者： Elina Rautala Pia Bjorkenheim Merja Laitinen Department of Equine and small Animal Medicine Diagnostic ImagingUniversity of HelsinkiHelsinkiFinland Department of Equine and small Animal Medicine SurgeryUniversity of HelsinkiHelsinkiFinland St.John’s Innovation Centre CambridgeUK

This case report describes the radiographic and ultrasonographic findings of three surgically confirmed cases of mesenteric volvulus or intestinal torsion in dogs. In all three cases, ultrasonographic findings included segmental ileus and absent or markedly reduced peristalsis of the affected small intestine, and partial loss of wall layering with increased overall echogenicity of the intestinal wall, but with normal to mildly increased wall thickening. No blood flow was detected in the affected small intestinal wall when assessed with colour Doppler. A moderate amount of peritoneal effusion was also detected with hyperechoic omental and mesenteric fat tissue throughout the peritoneal cavity. Few reports describe ultrasonographic findings of small intestinal ischemia in small animals. In all three cases presented here, ultrasound was helpful in demonstrating typical intestinal wall changes and helped to obtain the correct diagnosis of ischemic disease of the small intestine.

关键词： Mesenteric Volvulus Intestinal Volvulus Dog Ultrasonography Radiography

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