期刊文献+
共找到268篇文章
< 1 2 14 >
每页显示 20 50 100
中国OUTLETS零售业态经营模式探析 被引量:1
1
作者 闾志俊 《北京市经济管理干部学院学报》 2008年第4期37-41,共5页
OUTLETS是当代较为流行的零售业态之一,在中国有很大的市场容量,但同时也对目前的零售业格局形成一定影响。本文首先介绍了OUTLETS的形成和经营特点;其次论述了OUTLETS在中国产生的背景,分析了目前中国OUTLETS的经营现状及存在问题;最后... OUTLETS是当代较为流行的零售业态之一,在中国有很大的市场容量,但同时也对目前的零售业格局形成一定影响。本文首先介绍了OUTLETS的形成和经营特点;其次论述了OUTLETS在中国产生的背景,分析了目前中国OUTLETS的经营现状及存在问题;最后,在分析当前中国零售业经营环境的基础上,从宏观和微观两个层面探讨了OUTLETS的经营战略和策略。 展开更多
关键词 outlets 零售业 现状 经营对策
下载PDF
Analysis of Outlets Retail Market Based on Chinese Tourists
2
作者 DAI Jingyu DAI Hongyu XIE Yutong 《Journal of Donghua University(English Edition)》 EI CAS 2020年第3期263-270,共8页
Outlets are a new challenge to the retail industry after the continuous development of the market economy.However,academic research on outlets is very scarce.The purpose of this research is to study the relationship b... Outlets are a new challenge to the retail industry after the continuous development of the market economy.However,academic research on outlets is very scarce.The purpose of this research is to study the relationship between outlets'marketing methods and customer perception.This research cooperates with Shanghai International Fashion Education Center(SIFEC),and conducts convenience sampling on the research objects as the samples.By using quantitative research methods and questionnaire survey tools,the researchers studied the relationships among experience marketing,perceived value,customer satisfaction and loyalty of customers to outlets.The research found that outlets'experience marketing will influence customer perceived value effectively and affect consumer satisfaction and loyalty indirectly. 展开更多
关键词 outlets sustainable development brand marketing statistical analysis quantitative analysis
下载PDF
Structure and Performance of the Retail Outlets of Honey in the Kingdom of Saudi Arabia
3
作者 Ahmed A. Al-Ghamdi Abdu Zulail Nuru Adgaba 《Food and Nutrition Sciences》 2014年第13期1168-1176,共9页
The study aimed at analyzing the most important factors affecting the retail marketing of honey in Saudi Arabia. Cross sectional survey was employed using field interview (direct contact) with a random sample of 343 r... The study aimed at analyzing the most important factors affecting the retail marketing of honey in Saudi Arabia. Cross sectional survey was employed using field interview (direct contact) with a random sample of 343 retail outlets represented all its forms and patterns in seven major cities in Saudi Arabia. Measurements like market share, Gini coefficient and Herfindahl Hirschman Index (HHI) were used to estimate the indicators of market structure and its performance. The result showed that the structure of honey retail market is generally closer to pure competition with a small concentration in some areas. Gini coefficients of concentration, as well as the values of the Herfindahl Hirschman Index (HHI) were relatively low for retailers. The average marketing margin was about SAR 6.4/Kg for local honey while the marketing margin of imported honey was about SAR 113/Kg. The high profit margin variation between local and imported honey is due to the high marketing costs, lower supplied quantity and higher demand for local honey. The estimated cost of marketing of onekilogram of honey was about 8 SAR at the retail level. From retailers’ point of view, low quality, lack of marketing services, improper display, high rental property, lack of knowledge and experience of the consumer about properties and quality characteristics honey, high prices and shortage of some varieties of honey in some specific season are the most important problems of honey marketing in the Saudi market. Setting priorities between different brands of honey plays a noticeable role in marketing. Some honey producers and traders were very concerned about unfair competition of honey market through high promotion as a brand based on their long history in the production and supply of high-quality varieties of honey from specific and well-known varieties. Hence, intensive awareness creation effort through training, exhibition, media and advertisement are required to improve the perception of consumers towards the local honey. 展开更多
关键词 HONEY Marketing Performance Retail outlets STRUCTURE SAUDI ARABIA
下载PDF
Retail Outlets and City Centrality: Perspectives from a Sub-Saharan African City
4
作者 Eti-obong Simeon Ema 《Journal of Geographical Research》 2019年第3期23-29,共7页
Sub-Saharan African cities are uniquely characterized by retail competition influencing outlet location.This work focused on revealing retail outlet location in Uyo and its relationship with distances from the Central... Sub-Saharan African cities are uniquely characterized by retail competition influencing outlet location.This work focused on revealing retail outlet location in Uyo and its relationship with distances from the Central Business Districts.Distance was measured along the six major arterial roads that link the city to the central business districts by the use of Google Map[5]Distance Calculator and itouch maps[7]technology.Six arteries were divided into four distinct spaces in kilometers namely 0-1km,1-2km,2-3km,3-4km.Retail Outlets were grouped into ten classes.Data was analysed using distance in kilometers from the Central Business District as variable Y1.The independent variables X1,X2,X3,X4,X5 and X6 were the six major arteries represented by the location of each specific retail outlet group.Utilising SPSS version 20 software the results reflected centre a 47.9 percent variation in retail outlets location with correlation coefficient(R)of 69.2%revealing a strong relationship between the distances from the Central Business Districts and the location of retail outlets located across the six major arteries.H1 was accepted which states a significant relationship in the location of retail outlets as distance increase from the city centre across the linkages.This confirms a strong intensity of location of retail outlets in the city centre with a gradual decline as distance increase from the centre.Although there was an increase in intensity of retail outlets in junctions away from the Central Business Districts according to multiple nuclei concept.It is recommended that urban expansion through growth poles.Aim:To access the relationship between retail outlets location and distance from central business district in a Uyo.Research Questions:This work provided answers to the following questions:1.Where are these retail outlets located in the city space?2.What is the relationship between Retail outlets and the distance from the City Centre?Objectives:1.To explain the distribution of location of retail outlets in city space.2.To reveal the relationship between Retail Outlets and distance from the City Centre.Hypothesis:There is no significant relationship between the distance from the central business district and the location of retail outlets. 展开更多
关键词 RETAIL outlets Sub-Saharan AFRICA Central business DISTRICT Uyo urban
下载PDF
Numerical Study of Mixed Convection in an Isosceles Trapezoidal Cavity with Several Outlets: Application for Primary Air Draft in ASUTO Charcoal Stove
5
作者 Gagnon Koffi Apedanou Kokou N’wuitcha +1 位作者 Yendoubé Lare Kossi Napo 《Modern Mechanical Engineering》 2022年第2期45-61,共17页
Mixed convection of heat and mass transfer in an isosceles trapezoidal cavity has been studied numerically. Constant heat flux is imposed through four outlets and the grid is insulated. The inclined walls are maintain... Mixed convection of heat and mass transfer in an isosceles trapezoidal cavity has been studied numerically. Constant heat flux is imposed through four outlets and the grid is insulated. The inclined walls are maintained in natural convection while the lower horizontal wall is adiabatic. These conditions reflect the air draft zone of the ASUTO charcoal stove. The governing two-di- mensional flow equations have been solved by using the finite difference method and Thomas’s algorithm. The investigations are conducted for different values of Richardson (R<sub>i</sub>), Reynolds number (R<sub>e</sub>) and inclination angles of sidewalls. The results are presented in terms of streamlines, isotherms, moisture contours. It was found that for Reynolds number (R<sub>e</sub>) equal to 100, the flow pattern is strongly dependent on the inclination angle and Richardson number. Thus, for high Richardson number (R<sub>i</sub>) values (10, 100), the dominance of natural convection over the flow structure decreases with the decreasing of the inclination angle of sidewalls of the cavity. For R<sub>i</sub> = 1, an optimum air draft corresponds to an inclination angle in the vicinity of 22° while for R<sub>i</sub> = 10 or 100 (in dominance of natural convection), the optimum inclination angle for air draft is in the vicinity of 15°. 展开更多
关键词 Mixed Convection Heat and Mass Transfer Trapezoidal Cavity ASUTO Charcoal Stove Richardson Number Several outlets
下载PDF
Distribution Characteristics of Specialty Snack Outlets in Beijing Downtown Area:Take Shaxian Snacks and Chengdu Snacks Outlets as Examples
6
作者 ZHOU Yuan LIU Hongli JIN Hui 《Journal of Landscape Research》 2018年第5期22-27,34,共7页
Snacks are an important part of the catering industry,whose spatial pattern distribution will directly affect the behavior of residents and tourists decision-making.Therefore,this paper chose 'Shaxian snacks' ... Snacks are an important part of the catering industry,whose spatial pattern distribution will directly affect the behavior of residents and tourists decision-making.Therefore,this paper chose 'Shaxian snacks' and 'Chengdu snacks' outlets in the downtown area of Beijing as the research object,taking POI data and GIS spatial data as data sources,using GIS spatial analysis and nuclear density estimation method,to make a comparative analysis of the spatial distribution characteristics of snack outlets in downtown of Beijing.The results showed that(1) distribution characteristics of snacks outlets in each district varied greatly.(2) Distribution differences of both snacks outlets in each circle was in significant.(3) Distribution of snacks outlets from the center to the periphery along the ring roads took on the "pyramid type".(4) Distribution of snacks outlet show stronger proximity to road than to subway.Distribution characteristics of the snack outlets included(1) Spatial distribution of the snacks outlets showed weak centrality.(2) The snacks outlets showed significant characteristics of spatial aggregation with great differences in internal structure.According to the above conclusions,combined with municipal planning,this paper according to the classification of the city,put forward suggestions on the distribution of snack outlets in Beijing,(1) Recombine the snack outlets in old urban districts.(2) According to the city functional orientation,redistribute the snack outlets in new urban districts. 展开更多
关键词 SNACKS outlet Downtown Space Characteristics GATHERING
下载PDF
Primary gastroduodenal tuberculosis presenting as gastric outlet obstruction:A case report and review of literature 被引量:5
7
作者 Abdihamid Mohamed Ali Yahye Garad Mohamed +4 位作者 Abdirahman Ahmed Mohamud Abdulkadir Nor Mohamed Mohamed Rage Ahmed Ismail Mohamud Abdullahi Tuba Saydam 《World Journal of Clinical Cases》 SCIE 2024年第8期1536-1543,共8页
BACKGROUND Mycobacterium tuberculosis(TB)is the causative agent of TB,a chronic granulo-matous illness.This disease is prevalent in low-income countries,posing a significant global health challenge.Gastrointestinal TB... BACKGROUND Mycobacterium tuberculosis(TB)is the causative agent of TB,a chronic granulo-matous illness.This disease is prevalent in low-income countries,posing a significant global health challenge.Gastrointestinal TB is one of the three forms.The disease can mimic other intra-abdominal conditions,leading to delayed diagnosis owing to the absence of specific symptoms.While gastric outlet obs-truction(GOO)remains a frequent complication,its incidence has declined with the advent of proton pump inhibitors and Helicobacter pylori eradication therapy.Gastroduodenal TB can cause upper gastrointestinal hemorrhage,obstruction,and malignancy-like tumors.CASE SUMMARY A 23-year-old male presented with recurrent epigastric pain,distension,nausea,vomiting,and weight loss,prompting a referral to a gastroenterologist clinic.Endoscopic examination revealed distorted gastric mucosa and signs of chronic inflammation.However,treatment was interrupted,possibly owing to vomiting or comorbidities such as human immunodeficiency virus infection or diabetes.Subsequent surgical intervention revealed a dilated stomach and diffuse thickening of the duodenal wall.Resection revealed gastric wall effacement with TB.CONCLUSION Primary gastric TB is rare,frequently leading to GOO.Given its rarity,suspicions should be promptly raised when encountering relevant symptoms,often requiring surgical intervention for diagnosis and treatment. 展开更多
关键词 TUBERCULOSIS Gastrointestinal tuberculosis Gastric outlet obstruction Gastroduodenal tuberculosis Case report
下载PDF
The Optimization Design of the Nozzle Section for theWater Jet Propulsion System Applied in Jet Skis
8
作者 Cheng-Yeh Li Jui-Hsiang Kao 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第3期2277-2304,共28页
The performance of a water jet propulsion system is related to the inlet duct,rotor,stator,and nozzle.Generally,the flow inlet design must fit the bottom line of the hull,and the design of the inlet duct is often limi... The performance of a water jet propulsion system is related to the inlet duct,rotor,stator,and nozzle.Generally,the flow inlet design must fit the bottom line of the hull,and the design of the inlet duct is often limited by stern space.The entire section,from the rotor to the nozzle through the stator,must be designed based on system integration in that the individual performance of these three components will influence each other.Particularly,the section from the rotor to the nozzle significantly impacts the performance of a water jet propulsion system.This study focused on nozzle design and established referable analysis results to facilitate subsequent integrated studies on the design parameters regarding nozzle contour.Most existing studies concentrate on discussions on rotor design and the tip leakage flow of rotors or have replaced the existing complex computational domain with a simple flow field.However,research has yet to implement an integrated,optimal design of the section from the rotor to the nozzle.Given the above,our program conducted preliminary research on this system integration design issue,discussed the optimal nozzle for this section in-depth,and proposed design suggestions based on the findings.This program used an existing model as the design case.This study referred to the actual trial data as the design conditions for the proposed model.Unlike prior references’simple flow field form,this study added a jet ski geometry and free surface to the computational domain.After the linear hull shape was considered,the inflow in the inlet duct would be closer to the actual condition.Based on the numerical calculation result,this study recommends that the optimal nozzle outlet area should be 37%of the inlet area and that the nozzle contour should be linear.Furthermore,for the pump head,static pressure had a more significant impact than dynamic pressure. 展开更多
关键词 Water jet propulsion system ROTOR nozzle outlet area nozzle contour
下载PDF
Interferon-gamma release assays as a tool for differential diagnosis of gastrointestinal tuberculosis
9
作者 Tsvetelina Velikova Anita Aleksandrova 《World Journal of Clinical Cases》 SCIE 2024年第27期6015-6019,共5页
In this editorial,we comment on an article published in a recent issue of the World Journal of Clinical Cases.There is a pressing need for reliable tools for diagnosing tuberculosis(TB)of the gastrointestinal tract.De... In this editorial,we comment on an article published in a recent issue of the World Journal of Clinical Cases.There is a pressing need for reliable tools for diagnosing tuberculosis(TB)of the gastrointestinal tract.Despite advancements in the diagnosis and treatment,TB remains a global health challenge.Ali et al demon-strated that TB may mimic gastrointestinal conditions,such as gastric outlet obstruction,causing a delay in the diagnosis.Furthermore,the latter complication is frequently observed during infections,including Helicobacter pylori,and rarely is related to TB,as in the presented case.In line with this,we think that laboratory tests based on interferon-gamma release assays can be a helpful tool for diagnosing latent TB paced in the gastrointestinal tract.Innovative strategies and approaches for diagnosing latent/active extra pulmonary TB are crucial for establishing the diagnosis early and enhancing treatment strategies to mitigate the global burden of TB. 展开更多
关键词 TUBERCULOSIS Gastrointestinal tuberculosis Interferon-gamma release assay IGRA Primary gastroduodenal tuberculosis Gastric outlet obstruction Case report
下载PDF
Unveiling hidden outcomes in malignant gastric outlet obstruction research–insights from a"Pancreas 2000"review
10
作者 Filipe Vilas-Boas Giacomo Emanuele Maria Rizzo +5 位作者 Charles De Ponthaud Stuart Robinson Sebastien Gaujoux Gabriele Capurso Giuseppe Vanella Bahadır Bozkırlı 《World Journal of Gastrointestinal Endoscopy》 2024年第8期451-461,共11页
Malignant gastric outlet obstruction(mGOO)is a major condition affecting patients with periampullary tumors,including pancreatic cancer.The current treatment options include surgical gastroenterostomy,endoscopic stent... Malignant gastric outlet obstruction(mGOO)is a major condition affecting patients with periampullary tumors,including pancreatic cancer.The current treatment options include surgical gastroenterostomy,endoscopic stenting and more recently EUS-guided gastroenterostomy.Most studies comparing the outcomes of the three procedures focus on technical success,clinical success and safety.Several“occult”outcomes relevant to the patient’s viewpoints and perspective may ultimately impact on cancer-related and overall survival,such as body mass composition,nutritional biomarkers,chemotherapy tolerance and patient-reported quality of life.The aim of this review is to provide an overview of potential key outcomes that should be explored in future comparative research around mGOO treatment options. 展开更多
关键词 Malignant gastric outlet obstruction Endoscopic ultrasound-guided gastroenterostomy Patient-reported outcomes Body composition NUTRITION Quality of life
下载PDF
Brewing Success Abroad--Chinese new-style tea brands tapping Southeast Asian markets
11
作者 Wen Xin 《China Report ASEAN》 2024年第8期51-53,共3页
Naixue,a popular brand of Chinese new-style tea,opened its first Singapore outlet at Jewel Changi Airport this July.It is the company’s second overseas store following a Bangkok branch that opened in December 2023.No... Naixue,a popular brand of Chinese new-style tea,opened its first Singapore outlet at Jewel Changi Airport this July.It is the company’s second overseas store following a Bangkok branch that opened in December 2023.Notably,Naixue’s previous attempts to establish a foothold in Singapore and Japan in 2018 were thwarted by the COVID-19 pandemic,leading to store closures. 展开更多
关键词 closure OUTLET branch
下载PDF
Make Concerted Efforts to Fast-Track Global Economic Recovery
12
作者 Lily Wang 《China's Foreign Trade》 2024年第3期26-29,共4页
Although some Western officials and media outlets have stepped up their smear campaign against China’s economy and have even sought to crack down on emerging Chinese industries,foreign businesses remain confident in ... Although some Western officials and media outlets have stepped up their smear campaign against China’s economy and have even sought to crack down on emerging Chinese industries,foreign businesses remain confident in the prospect of the Chinese economy and are committed to further expanding in the Chinese market.On May 13,the Global Trade and Investment Promotion Summit 2024 was held in Beijing.Chinese Vice President Han Zheng attended and addressed the opening ceremony. 展开更多
关键词 EXPANDING OUTLET RECOVERY
下载PDF
Navigating Market Choices: Understanding Carrot Market Outlet Selection among Smallholder Farmers in Kenya
13
作者 Hillary Kiprotich Ngeno Ngenoh Evans +1 位作者 Oscar Ayuya Ingasia Hillary K. Bett 《Agricultural Sciences》 2024年第6期676-703,共28页
This research delves into the hurdles and strategies aimed at augmenting the market involvement of smallholder carrot farmers in Nakuru County, Kenya. Employing a Multinomial Logit (MNL) model, it scrutinizes the fact... This research delves into the hurdles and strategies aimed at augmenting the market involvement of smallholder carrot farmers in Nakuru County, Kenya. Employing a Multinomial Logit (MNL) model, it scrutinizes the factors influencing the selection of marketing outlets among carrot farmers. The findings unveil that a significant majority (81%) of surveyed farmers actively participate in diverse market outlets, encompassing the farm gate, cleaning point, local market, external market, and export market. Notably, pivotal buyers include aggregators, brokers, wholesalers, retailers, and consumers, with transactions predominantly occurring at the farm level. Additionally, the analysis discerns substantial influences of socio-economic characteristics, experiential factors, and geographical proximity on farmers’ choices of market outlets. Specifically, gender, age, land size, farming experience, and distance to markets emerge as critical determinants. Moreover, the study delves into the examination of market margins along the carrot value chain, shedding light on the potential profitability of carrot farming in the region. Remarkably, higher average gross margins are identified in export and external markets, signaling lucrative prospects for farmers targeting these segments. However, disparities in profit distribution between farmers and traders underscore the necessity for interventions to ensure equitable value distribution throughout the value chain. These findings underscore the imperative for tailored interventions to tackle challenges and foster inclusive agricultural development. Strategies such as farmer organizations, contracting, and vertical integration are advocated to enhance market access and profitability for smallholder carrot farmers. Thus, this study enriches our comprehension of the dynamics within carrot value chains and provides valuable insights for policymakers and development practitioners aiming to uplift rural livelihoods and bolster food security. 展开更多
关键词 Market Outlet Selection Smallholder Farmers Multinomial Logit Model Determinants Carrot Value Chain
下载PDF
Endoscopic ultrasound-guided gastroenterostomy for gastric outlet obstruction in Mexico
14
作者 Massiel Madelin Rosario-Morel Rodrigo Soto-Solis +5 位作者 Katia Picazo-Ferrera Miriam Idalia Torres-Ruiz JoséAlberto Estradas-Trujillo Mario Alberto Gallardo-Ramírez Gerardo Akram Darwich-del Moral Luis Ariel Waller-González 《World Journal of Surgical Procedures》 2024年第3期15-20,共6页
BACKGROUND Endoscopic ultrasound-guided gastroenterostomy(EUS-GE)has recently emerged as an alternative treatment for gastric outlet obstruction(GOO)in selected patients.AIM To report the initial experience of EUS-GE ... BACKGROUND Endoscopic ultrasound-guided gastroenterostomy(EUS-GE)has recently emerged as an alternative treatment for gastric outlet obstruction(GOO)in selected patients.AIM To report the initial experience of EUS-GE in patients with GOO.METHODS This study was a retrospective,observational,multicenter study in which the data from 10 patients who underwent EUS-GE due to GOO between September 2021 and May 2023 were collected.We analyzed technical success,clinical success,adverse events,and survival.Technical success was defined as adequate positioning and deployment of the stent.Clinical success was defined as the patient’s ability to tolerate oral intake without vomiting 7 d after the procedure.Postprocedural adverse events were recorded.RESULTS Eleven procedures in 10 patients with GOO were included.The mean age of the patients was 67.5 years(range:56-77 years).Malignant GOO was present in 9 patients.Technical success was achieved in 9/11 procedures(82%).Among them,clinical success was achieved in 9 patients(100%).Adverse events occurred in 1 patient(9%).The median survival was 3 months(n=7;range:1-8 months).CONCLUSION EUS-GE is a feasible therapeutic option in the treatment of GOO. 展开更多
关键词 Endoscopic ultrasound-guided gastroenterostomy Gastric outlet obstruction Lumen apposing metal stent Interventional endoscopic ultrasound GASTROJEJUNOSTOMY Duodenal stenting
下载PDF
外高桥国际酒类展示交易中心——进口酒类的OUTLETS
15
《明日风尚》 2010年第2期13-13,共1页
上海外高桥国际酒类展示交易中心坐落在外高桥保税区中国国际商品中心3号馆,中心集进口酒类产品展示、交易和贸易服务为一体,是政府为促进进口酒进入中国市场而建的综合性贸易服务平台。中心共有四层,一层公共展厅现有展区13个,其中包... 上海外高桥国际酒类展示交易中心坐落在外高桥保税区中国国际商品中心3号馆,中心集进口酒类产品展示、交易和贸易服务为一体,是政府为促进进口酒进入中国市场而建的综合性贸易服务平台。中心共有四层,一层公共展厅现有展区13个,其中包括一般展区、精品展区、独立展台、吧台、产品发布区等适用于各类酒商的需求。 展开更多
关键词 展示交易中心 outlets 外高桥 国际商品 酒类产品 酒商 酒类企业 贸易服务 国内采购 物流配
原文传递
NUMERICAL SIMULATIONS OF THE HYDRAULIC CHARACTERISTICS OF SIDE INLET/OUTLETS 被引量:17
16
作者 YE Fei GAO Xue-ping 《Journal of Hydrodynamics》 SCIE EI CSCD 2011年第1期48-54,共7页
The hydraulic characteristics at the side inlet/outlet of pumped storage plants is studied by numerical simulations,covering the flow distribution,head loss,vortex,and others.Based on the physical model test,the reali... The hydraulic characteristics at the side inlet/outlet of pumped storage plants is studied by numerical simulations,covering the flow distribution,head loss,vortex,and others.Based on the physical model test,the realizable k-εturbulence model is used in the 3-D simulation of the side inlet/outlet.A new scheme is suggested to obtain the uneven flow distribution over three branch orifices.The variation of the free surface with the reservoir water level under the pumped condition is simulated,with results consistent with the experimental results. 展开更多
关键词 hydraulic characteristics side inlet/outlet pumped storage plant numerical simulation realizable k-εturbulence model
原文传递
Hydrodynamics in commercial-scale internally circulating fluidized beds with different central downcomer outlets 被引量:1
17
作者 Zhenliang Meng Mengxi Liu +2 位作者 Nouman Ahmad Wei Wang Chunxi Lu 《Particuology》 SCIE EI CAS CSCD 2020年第4期120-131,共12页
Standpipes,or downcomers,are commonly used in fluidized beds to transport particles.The outlet structure of the downcomer greatly affects the performance of flow from it and even overall reactor performance.In this st... Standpipes,or downcomers,are commonly used in fluidized beds to transport particles.The outlet structure of the downcomer greatly affects the performance of flow from it and even overall reactor performance.In this study,the hydrodynamics in commercial-scale internally circulating fluidized beds(ICFBs)with central downcomers having different outlet structures was investigated using computational fluid dynamics simulations with an energy minimization multi-scale drag model.The predicted results closely agreed with experimental data.Results showed that in an ICFB with a downcomer outlet directly open to the bed(model A),nearly 12.7%to 5.4%of the gas in the draft tube bypasses into the downcomer.In the ICFB models B and C with a conic baffle below the downcomer,the gas bypass is significantly weakened or even eliminated when the diameter of the conic baffle is 1.1 times that of the downcomer(model C).In addition,the solids circulation mass flux in ICFBs increased by about 62.5%,from 126.8 kg/(m2 s)in model A to 206 kg/(m2 s)in model C. 展开更多
关键词 Internally circulating fluidized bed Downcomer outlet EMMS CFD Particles flow
原文传递
State media outlets focus on Wuhan's winter sports
18
作者 Zhu Wenxiu 《Changjiang Weekly》 2022年第6期3-3,共1页
Since the 8th National Public Ice and Snow Season began,winter sports in Wuhan have significantly gained in popularity and attracted the attention of several state media outlets.
关键词 OUTLET WINTER MEDIA
原文传递
Transoral outlet reduction:Outcomes of endoscopic Roux-en-Y gastric bypass revision in 284 patients at a community practice 被引量:1
19
作者 Daniel B Maselli Vibhu Chittajallu +6 位作者 Chase Wooley Areebah Waseem Daniel Lee Michelle Secic Lauren LDonnangelo Brian Coan Christopher E McGowan 《World Journal of Gastrointestinal Endoscopy》 2023年第10期602-613,共12页
BACKGROUND Transoral outlet reduction(TORe)is a minimally invasive endoscopic revision of Roux-en-Y gastric bypass(RYGB)for weight recurrence;however,little has been published on its clinical implementation in the com... BACKGROUND Transoral outlet reduction(TORe)is a minimally invasive endoscopic revision of Roux-en-Y gastric bypass(RYGB)for weight recurrence;however,little has been published on its clinical implementation in the community setting.AIM To characterize the safety and efficacy of TORe in the community setting for adults with weight recurrence after RYGB.METHODS This is a retrospective cohort study of argon plasma coagulation and purse-string suturing for gastric outlet reduction in consecutive adults with weight recurrence after RYGB at a single community center from September 2020 to September 2022.Patients were provided longitudinal nutritional support via virtual visits.The primary outcome was total body weight loss(TBWL)at twelve months from TORe.Secondary outcomes included TBWL at three months and six months;excess weight loss(EWL)at three,six,and twelve months;twelve-month TBWL by obesity class;predictors of twelve-month TBWL;rates of post-TORe stenosis;and serious adverse events(SAE).Outcomes were reported with descriptive statistics.RESULTS Two hundred eighty-four adults(91.9%female,age 51.3 years,body mass index 39.3 kg/m^(2))underwent TORe an average of 13.3 years after RYGB.Median pre-and post-TORe outlet diameter was 35 mm and 8 mm,respectively.TBWL was 11.7%±4.6%at three months,14.3%±6.3%at six months,and 17.3%±7.9%at twelve months.EWL was 38.4%±28.2%at three months,46.5%±35.4%at six months,and 53.5%±39.2%at twelve months.The number of follow-up visits attended was the strongest predictor of TBWL at twelve months(R^(2)=0.0139,P=0.0005).Outlet stenosis occurred in 11 patients(3.9%)and was successfully managed with endoscopic dilation.There was one instance of post-procedural nausea requiring overnight observation(SAE rate 0.4%).CONCLUSION When performed by an experienced endoscopist and combined with longitudinal nutritional support,purse-string TORe is safe and effective in the community setting for adults with weight recurrence after RYGB. 展开更多
关键词 Transoral outlet reduction Purse-string Roux-en-Y gastric bypass Obesity Endoscopic revision Weight recurrence Gastrojejunal anastomosis
下载PDF
Upper extremity deep vein thrombosis:An intensivist’s perspective 被引量:2
20
作者 Omender Singh Deven Juneja 《World Journal of Critical Care Medicine》 2023年第3期130-138,共9页
Upper extremity deep vein thrombosis(UEDVT)is less common than lower extremity DVT but is a cause of significant morbidity and mortality in intensive care unit patients.Increasing cancer incidence,prolonged life expec... Upper extremity deep vein thrombosis(UEDVT)is less common than lower extremity DVT but is a cause of significant morbidity and mortality in intensive care unit patients.Increasing cancer incidence,prolonged life expectancy and increasing use of intravascular catheters and devices has led to an increased incidence of UEDVT.It is also associated with high rates of complications like pulmonary embolism,post-thrombotic syndrome and recurrent thrombosis.Clinical prediction scores and D-dimer may not be as useful in identifying UEDVT;hence,a high suspicion index is required for diagnosis.Doppler ultrasound is commonly employed for diagnosis,but other tests like computed tomography and magnetic resonance imaging venography may also be required in some patients.Contrast venography is rarely used in patients with clinical and ultrasound findings discrepancies.Anticoagulant therapy alone is sufficient in most patients,and thrombolysis and surgical decompression is seldom indicated.The outcome depends on the cause and underlying comorbidities. 展开更多
关键词 Catheter associated deep vein thrombosis Pacemaker associated deep vein thrombosis Paget-von Schröetter syndrome Thoracic outlet syndrome Upper extremity deep vein thrombosis
下载PDF
上一页 1 2 14 下一页 到第
使用帮助 返回顶部