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叠盖成型部分喉切除术治疗T_(1~2)声带癌的临床研究
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作者 骆文龙 刘阳 《重庆医学》 CAS CSCD 2003年第7期855-857,共3页
目的 对叠盖成型部分喉切除术 (PLIL)治疗临床上T1~ 2 N0 M0 单侧声带癌进行临床研究。方法 叠盖成型部分喉切除术是指包括切除整个声带组织 ,以及韧带 ,肌肉 ,毗邻的声带旁组织及相应的甲状软骨组织 ,缺损部由保存的甲状软骨片重叠... 目的 对叠盖成型部分喉切除术 (PLIL)治疗临床上T1~ 2 N0 M0 单侧声带癌进行临床研究。方法 叠盖成型部分喉切除术是指包括切除整个声带组织 ,以及韧带 ,肌肉 ,毗邻的声带旁组织及相应的甲状软骨组织 ,缺损部由保存的甲状软骨片重叠缝合重建 ,它的表面覆盖粘膜作为假声带皱襞的一种特殊术式。本科对 5 9例Ⅰ~Ⅲ期单侧声带癌 31例行叠盖成型部分喉切除术(PLIL组 )、2 8例行经典部分喉切除术治疗 (对照组 ) ,对各种数据进行研究 ,包括肿瘤特征、拔管时间、用口进食的时间、局部对照、存活、医患双方对术前术后声音的变化判断等。结果 纳入本研究共 5 9例 (T1,n =32 ;T2 ,n =2 7)。 31例接受叠盖成型部分喉切除术 ;2 8例接受经典部分喉切除术作为对照组。术中视野有清楚边缘的患者的全面对照率为 10 0 %。两组完成边缘清除 5 8例(96 .7% )。术后 ,实验组拔管的平均时间 4 .6d ;对照组拔管时间平均为 11.5d ,有显著性差异 (P <0 .0 5 ) ;实验组恢复口鼻气道和吞咽的功能 ,经口进食的平均时间 5 .8d ,对照组为 9.5d(有显著性差异 ,P <0 .0 5 )。两组术后 5年除对照组 1例颈部转移外其余无 1例转移或死亡。医生判断用叠盖成型部分喉切除术治疗的 31例患者的声音恢复达到极好率为 80 .6 5 % ; 展开更多
关键词 叠盖成型部分喉切除术 声带癌 经典部分喉切除术
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夹馅面条机成型部分结构改进 被引量:4
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作者 郎庆军 赵守恩 《食品与机械》 CSCD 2002年第4期22-22,32,共2页
对夹馅面条机成型部分结构进行了改进 ,夹馅更稳定 ,出面更均匀 ,便于清洗维修。
关键词 夹馅面条机 成型部分 结构改进
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自走式水稻大棚育秧联合作业机槽盘铺膜机构设计
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作者 陈国银 冯伟东 +1 位作者 佘永卫 丁文捷 《中国农机化学报》 2015年第6期76-81,共6页
针对铺膜机构与自走式水稻大棚育秧联合作业机的集成需求,调研秧盘铺膜结构及整体组成结构关系,采用三维模型与功能设计逐步演进的方法实现了折叠成型槽盘铺膜机构,由秧盘单元初步结构逐步演进为包含9个秧盘联体膜成型的上架与底架结构... 针对铺膜机构与自走式水稻大棚育秧联合作业机的集成需求,调研秧盘铺膜结构及整体组成结构关系,采用三维模型与功能设计逐步演进的方法实现了折叠成型槽盘铺膜机构,由秧盘单元初步结构逐步演进为包含9个秧盘联体膜成型的上架与底架结构,对主要杆件进行结构尺寸设计。采用1:3试验机模型验证铺膜成型功能,采用有限元方法进行应力、应变、变形位移和安全系数分析。研究表明:所设计的铺膜结构能够实现预定功能,成膜达到预定参数要求,结构设计参数校核达标。 展开更多
关键词 铺膜机构 折叠成型部分 结构设计 铺膜试验
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大断面软岩硐室施工与支护工艺优化技术 被引量:1
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作者 毛基腾 张陆彪 赵文涛 《知识经济》 2012年第10期95-95,97,共2页
文章阐述了刘桥一矿在Ⅱ46绞车房施工过程中实施大断面硐室巷道施工与支护优化技术,达到增强支护强度、提高工程质量、确保安全高效生产的目的。
关键词 大断面硐室 首茬拱部分成型 短掘短支
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Short Group Signatures with Efficient Concurrent Join
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作者 CHEN Hefeng MA Wenping +1 位作者 ZHANG Cheng SUN Changxia 《China Communications》 SCIE CSCD 2014年第11期90-99,共10页
Group signature schemes are fundamental cryptographic tools. A group signature scheme allows members of a group to anonymously sign misuse, the anonymity messages. To counter can be revoked by the group manager. The g... Group signature schemes are fundamental cryptographic tools. A group signature scheme allows members of a group to anonymously sign misuse, the anonymity messages. To counter can be revoked by the group manager. The group joining operation is a critical component of group signature scheme, the framing attack can be prevented by group joining processes. This paper presents an efficient group signature scheme with a simple joining protocol that is based on a "single message and signature response" interaction between the prospective user and the group manager. The security of our group signature is based on the Discrete Logarithm assumption and Decisional Linear Diffie- Hellman assumption. The formal security proof of our scheme is given in the random oracle model. Our scheme is also a very efficient short group signature scheme with efficient concurrent join. 展开更多
关键词 group signature scheme random oracle model discrete logarithm assumption decisional linear diffie-hellman assumption
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Predicting Western Pacific Subtropical High Using a Combined Tropical Indian Ocean Sea Surface Temperature Forecast 被引量:2
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作者 WANG Li-Wei ZHENG Fei ZHU Jiang 《Atmospheric and Oceanic Science Letters》 CSCD 2013年第6期405-409,共5页
Weather and climate in East China are closely related to the variability of the western Pacific subtropical high(WPSH), which is an important part of the Asian monsoon system. The WPSH prediction in spring and summer ... Weather and climate in East China are closely related to the variability of the western Pacific subtropical high(WPSH), which is an important part of the Asian monsoon system. The WPSH prediction in spring and summer is a critical component of rainfall forecasting during the summer flood season in China. Although many attempts have been made to predict WPSH variability, its predictability remains limited in practice due to the complexity of the WPSH evolution. Many studies have indicated that the sea surface temperature(SST) over the tropical Indian Ocean has a significant effect on WPSH variability. In this paper, a statistical model is developed to forecast the monthly variation in the WPSH during the spring and summer seasons on the basis of its relationship with SST over the tropical Indian Ocean. The forecasted SST over the tropical Indian Ocean is the predictor in this model, which differs significantly from other WPSH prediction methods. A 26-year independent hindcast experiment from 1983 to 2008 is conducted and validated in which the WPSH prediction driven by the combined forecasted SST is compared with that driven by the persisted SST. Results indicate that the skill score of the WPSH prediction driven by the combined forecasted SST is substantial. 展开更多
关键词 western Pacific subtropical high SST tropical Indian Ocean statistical prediction
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Simulation of gas-solid fluidized bed reactor for F-T synthesis 被引量:1
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作者 CAI Jin LI Tao +2 位作者 SUN Qi-wen YING Wei-yong FANG Ding-ye 《Journal of Coal Science & Engineering(China)》 2009年第4期420-425,共6页
Using the lumping method, CH_4, C_3H_8, C_10H_22, and C_22H_44 were chosen as themodel products, and CO as the key component. The mathematical model of a gas-solidfluidized bed reactor was established based on some hy... Using the lumping method, CH_4, C_3H_8, C_10H_22, and C_22H_44 were chosen as themodel products, and CO as the key component. The mathematical model of a gas-solidfluidized bed reactor was established based on some hypotheses. The consumption kinetic model of CO was investigated, and the parameters were estimated by UniversalGlobal Optimization with the Marquardt method. Residual error distribution and a statisticaltest show that the intrinsic kinetic models are reliable and acceptable. A model of carbonchain growth probability was established in terms of experiments. Coupled with the Ander-son- Schulz-Flory (ASF) distribution, the amount of specific product could be obtained.Large- scale cold model experiments were conducted to investigate the distribution of thegas (solid) phase and determine the function of the voidage with the location of the catalytic bed. The change tendencies of the components in the catalytic bed at different temperatures were computed and figured out. The calculated value computed by the modelestablished for the Fe-based F-T synthesis catalyst fit the experimental value very wellunder the same operating conditions, and all the absolute values of the relative deviationsare less than 5%. 展开更多
关键词 gas-solid fluidized bed F-T synthesis REACTOR LUMPING
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The Credit Cycle and the Business Cycle in the Economy of Turkey
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作者 Sehnaz Baklr Yigitbas 《Chinese Business Review》 2016年第3期123-131,共9页
This study examines econometric relationships between bank lending and the business cycle in Turkey. Firstly, the cyclical components of the real GDP and real bank loans were determined using time series. A cointegrat... This study examines econometric relationships between bank lending and the business cycle in Turkey. Firstly, the cyclical components of the real GDP and real bank loans were determined using time series. A cointegration analysis and a vector error-correction model with quarterly data were used for period of 1987:01-2013:03. The results of cointegration analysis indicate that there is a single stable long-run equilibrium relationship between real bank loans and macroeconomic variables. The response of bank loans to GDP shocks is positive. Bank loans have pro-cyclical character in Turkey. 展开更多
关键词 business cycle credit cycle Turkish economy
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Rapid prediction of floating and sinking components of raw coal
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作者 Wang Guanghui Kuang Yali Wang Zhangguo Ji Li Wang Ying 《International Journal of Mining Science and Technology》 SCIE EI 2012年第5期735-738,共4页
A model that rapidly predicts the density components of raw coal is described.It is based on a threegrade fast float/sink test.The recent comprehensive monthly floating and sinking data are used for comparison.The pre... A model that rapidly predicts the density components of raw coal is described.It is based on a threegrade fast float/sink test.The recent comprehensive monthly floating and sinking data are used for comparison.The predicted data are used to draw washability curves and to provide a rapid evaluation of the effect from heavy medium induced separation.Thirty-one production shifts worth of fast float/sink data and the corresponding quick ash data are used to verify the model.The results show a small error with an arithmetic average of 0.53 and an absolute average error of 1.50.This indicates that this model has high precision.The theoretical yield from the washability curves is 76.47% for the monthly comprehensive data and 81.31% using the model data.This is for a desired cleaned coal ash of 9%.The relative error between these two is 6.33%,which is small and indicates that the predicted data can be used to rapidly evaluate the separation effect of gravity separation equipment. 展开更多
关键词 Raw coal Floating and sinking components Fast floating and sinking data Predicting model
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On the optimization of financial management of small and medium sized enterprises
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作者 ZHA Xiaojing HU Xiaoli TONG Yuyao XIE Zhenkai 《International English Education Research》 2014年第6期44-45,共2页
financial management is an important part of enterprise management, plays a vital role in production, management, development of enterprises. However, the current financial management in our country the majority of sm... financial management is an important part of enterprise management, plays a vital role in production, management, development of enterprises. However, the current financial management in our country the majority of small and medium-sized enterprises has a lot of problems. This paper analyzes the small and medium-sized enterprise financial management problems, and puts forward the optimize the financial management. and suggestions to 展开更多
关键词 small and medium-sized enterprises Financial management COUNTERMEASURES
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On the optimization of financial management of small and medium sized enterprises
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作者 ZHA Xiaojing HU Xiaoli TONG Yuyao XI Zhenkai 《International English Education Research》 2014年第11期7-8,共2页
financial management is an important part of enterprise management, plays a vital role in production, management, development of enterprises. However, the current financial management in our country the majority of sm... financial management is an important part of enterprise management, plays a vital role in production, management, development of enterprises. However, the current financial management in our country the majority of small and medium-sized enterprises has a lot of problems. This paper analyzes the small and medium-sized enterprise financial management problems, and puts forward the countermeasures and suggestions to optimize the financial management. 展开更多
关键词 small and medium-sized enterprises Financial management COUNTERMEASURES
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The Value Relevance of Foreign Currency Translation Adjustments (FCTAs) in the Italian Stock Exchange
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作者 Olga Ferraro Stefania Veltri 《Journal of Modern Accounting and Auditing》 2012年第10期1523-1534,共12页
The main aim of this paper is to test whether the foreign currency translation adjustments (FCTAs), the largest components of other comprehensive income (OCI) for most firms, are incrementally value-relevant for i... The main aim of this paper is to test whether the foreign currency translation adjustments (FCTAs), the largest components of other comprehensive income (OCI) for most firms, are incrementally value-relevant for investors with respect to the net income (NI). Previous archival research on the value relevance of FCTAs has documented a weak or non-existent link between FCTAs and firm valuation (Pinto, 2005). The hypothesized reasons could reside in the econometric method employed, in the use of as-if numbers, and in the missing consideration of the differential effect that exchange rate changes have on firms of varying levels of capital intensiveness. This study adds to the existing literature by empirically testing the value relevance of as-reported FCTAs numbers in the earnings and book value model the Ohlson-like interacted model through panel data techniques. The main finding of this study is that as-reported FCTAs are significantly and incrementally value-relevant, when their parameter estimates are allowed to vary in the cross-section. 展开更多
关键词 value relevance foreign currency translation adjustments (FCTAs) other comprehensive income (OCI) Italy listed groups as-reported data
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An Examination of the Traits of Successful Entrepreneurs in Hong Kong: The PAST Model
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作者 Perry Ho Lisa Barnes 《Journal of Modern Accounting and Auditing》 2012年第8期1237-1245,共9页
Entrepreneurs have a unique status in Hong Kong, who are seen as world leaders in building and developing its economy. These entrepreneurs constitute a majority of businesses and employ a significant part of the popul... Entrepreneurs have a unique status in Hong Kong, who are seen as world leaders in building and developing its economy. These entrepreneurs constitute a majority of businesses and employ a significant part of the population, thus, they are vital for the economy of Hong Kong. This research looks into and studies this phenomenon to evaluate the various components of the success of these entrepreneurs and to draw conclusions that will benefit the educators, the legislators as well as the new entrants who wish to become entrepreneurs. By interviewing Hong Kong entrepreneurs, it has been found that the main source of entrepreneurial success in Hong Kong is of very complex origin. The Hong Kong's entrepreneurs seem to succeed, when they are able to blend the best qualities of the East and the West. Based on the research outcomes, the perceptions, achievements, strategies, and traits (PAST) model has been developed to assist Hong Kong entrepreneurs in the future. 展开更多
关键词 ENTREPRENEUR PERCEPTIONS ACHIEVEMENTS strategies and traits (PAST) model traits theory
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Comprehensive Appraisal of Provincial Low Carbon Development:A Case Study of China
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作者 Liu Yong 《Chinese Journal of Population,Resources and Environment》 2012年第1期27-31,共5页
In this research,the Factor Analysis model of measuring provincial low carbon development in China has been constructed.Based on data from 30 provinces,an empirical study was developed to measure comprehensive low car... In this research,the Factor Analysis model of measuring provincial low carbon development in China has been constructed.Based on data from 30 provinces,an empirical study was developed to measure comprehensive low carbon development using the Factor Analysis model(Principal Components method and Normalized Varimax Rotation).The results reveal that the provincial marks of low carbon development are generally low and only nine provinces have high marks(more than 0.80).The results also show significant regional disparity.The provincial marks of the eastern region are higher than both the middle and western provinces of China's Mainland.All of the provinces with high marks(more than 0.90) are located in the eastern region,and those with the lowest marks(0.60) are located in the middle region.Furthermore,regional disparity in low carbon development follows the same pattern as economic development in China.Finally,some suggestions for decision-makers are presented. 展开更多
关键词 low carbon development INDICATORS Factor Analysismodel China
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The Availability Improvement of Uninterruptible Power Supply by Stabilizing Node Application at Control Part
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作者 Bexhet Kamo Shkelzen Cakaj Aleksander Biberaj Olimpjon Shurdi Sanije Cela 《Journal of Energy and Power Engineering》 2012年第12期2031-2037,共7页
The UPS (uninterruptible power supplies) are essential power infrastructure components of systems designed for critical application, including data centers. High availability achievement is a very important factor r... The UPS (uninterruptible power supplies) are essential power infrastructure components of systems designed for critical application, including data centers. High availability achievement is a very important factor related to UPS performance, consequently to proper critical application functionality. Generally, UPS have a limited input voltage window, referring to the nominal input voltage value. Goal of this paper is to prove larger voltage window, without affecting normal UPS operation. Larger window will result on less commutation, backup and normal mode reduction, and consequently duty time of batteries reduction, too. Thus, under these conditions, it is to be expected availability improvement. The stabilizing node model, applied at UPS's control part through this paper is presented. UPS's behavior with an implemented stabilizing node is observed at few sites. In order to analyze and conclude about UPS's performance under these technical conditions, simulation results are further presented. 展开更多
关键词 AVAILABILITY stabilizing node uninterruptible power supply online UPS.
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Multi-physics coupling field finite element analysis on giant magnetostrictive materials smart component 被引量:2
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作者 Zhang-rong ZHAO Yiojie WU +2 位作者 Xin-jian GU Lei ZHANG Ji-feng YANG 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2009年第5期653-660,共8页
This study presents a new method to solve the difficult problem of precise machining a non-cylinder pinhole of a piston using embedded giant magnetostrictive material (GMM) in the component. We propose the finite elem... This study presents a new method to solve the difficult problem of precise machining a non-cylinder pinhole of a piston using embedded giant magnetostrictive material (GMM) in the component. We propose the finite element model of GMM smart component in electric, magnetic, and mechanical fields by step computation to optimize the design of GMM smart com-ponent. The proposed model is implemented by using COMSOL multi-physics V3.2a. The effects of the smart component on the deformation and the system resonance frequencies are studied. The results calculated by the model are in excellent agreement (relative errors are below 10%) with the experimental values. 展开更多
关键词 Smart component Giant magnetostrictive Finite element method (FEM) modeling Non-cylinder piston pinhole Multi-physics coupling field
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A unified canopy bidirectional reflectance (BRDF) model for row ceops 被引量:3
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作者 YAN BinYan XU XiRu FAN WenJie 《Science China Earth Sciences》 SCIE EI CAS 2012年第5期824-836,共13页
Row sowing is a basic crop sowing method in China,and thus an accurate Bidirectional Reflectance Distribution Function (BRDF) model of row crops is the foundation for describing the canopy bidirectional reflectance ch... Row sowing is a basic crop sowing method in China,and thus an accurate Bidirectional Reflectance Distribution Function (BRDF) model of row crops is the foundation for describing the canopy bidirectional reflectance characteristics and estimating crop ecological parameters.Because of the macroscopically geometric difference,the row crop is usually regarded as a transition between continuous and discrete vegetation in previous studies.Were row treated as the unit for calculating the four components in the Geometric Optical model (GO model),the formula would be too complex and difficult to retrieve.This study focuses on the microscopic structure of row crops.Regarding the row crop as a result of leaves clumped at canopy scale,we apply clumping index to link continuous vegetation and row crops.Meanwhile,the formula of clumping index is deduced theoretically.Then taking leaf as the basic unit,we calculate the four components of the GO model and develop a BRDF model for continuous vegetation,which is gradually extended to the unified BRDF model for row crops.It is of great importance to introduce clumping index into BRDF model.In order to evaluate the performance of the unified BRDF model,the canopy BRDF data collected in field experiment,"Watershed Allied Telemetry Experiment Research (WATER)",from May 30th to July 1st,2008 are used as the validation dataset for the simulated values.The results show that the unified model proposed in this paper is able to accurately describe the non-isotropic characteristics of canopy reflectance for row crops.In addition,the model is simple and easy to retrieve.In general,there is no irreconcilable conflict between continuous and discrete vegetation,so understanding their common and individual characteristics is advantageous for simulating canopy BRDF.It is proven that the four components of the GO model is the basic motivational factor for bidirectional reflectance of all vegetation types. 展开更多
关键词 row crop BRDF CLUMPING clumping index
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Theoretical methods for excited state dynamics of molecules and molecular aggregates 被引量:1
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作者 SHI Qiang CHEN Hui 《Science China Chemistry》 SCIE EI CAS 2013年第9期1271-1276,共6页
This contribution provides a summary of proposed theoretical and computational studies on excited state dynamics in molecular aggregates, as an important part of the National Natural Science Foundation (NNSF) Major Pr... This contribution provides a summary of proposed theoretical and computational studies on excited state dynamics in molecular aggregates, as an important part of the National Natural Science Foundation (NNSF) Major Project entitled "Theoretical study of the low-lying electronic excited state for molecular aggregates". This study will focus on developments of novel methods to simulate excited state dynamics of molecular aggregates, with the aim of understanding several important chemical physics processes, and providing a solid foundation for predicting the opto-electronic properties of organic functional materials and devices. The contents of this study include: (1) The quantum chemical methods for electronic excited state and electronic couplings targeted for dynamics in molecular aggregates; (2) Methods to construct effective Hamiltonian models, and to solve their dynamics using system-bath approaches; (3) Non-adiabatic mixed quantum-classic methods targeted for molecular aggregates; (4) Theoretical studies of charge and energy transfer, and related spectroscopic phenomena in molecular aggregates. 展开更多
关键词 excited state dynamics molecular aggregates effective Hamiltonian models mixed quantum-classical dynamics
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Second order duality for multiobjective programming with cone constraints 被引量:1
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作者 TANG Li Ping YAN Hong YANG Xin Min 《Science China Mathematics》 SCIE CSCD 2016年第7期1285-1306,共22页
We focus on second order duality for a class of multiobjective programming problem subject to cone constraints. Four types of second order duality models are formulated. Weak and strong duality theorems are establishe... We focus on second order duality for a class of multiobjective programming problem subject to cone constraints. Four types of second order duality models are formulated. Weak and strong duality theorems are established in terms of the generalized convexity, respectively. Converse duality theorems, essential parts of duality theory, are presented under appropriate assumptions. Moreover, some deficiencies in the work of Ahmad and Agarwal(2010) are discussed. 展开更多
关键词 multiobjective programming cone constraints second order duality
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Numerical Study of Greenhouse Nocturnal Heat Losses 被引量:2
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作者 F.Berroug E.K.Lakhal +2 位作者 M.El Omari M.Faraji H.El Qarnia 《Journal of Thermal Science》 SCIE EI CAS CSCD 2011年第4期377-384,共8页
In this study we quantify and analyze different components of nocturnal losses from a heated greenhouse with the presence of vegetation for typical winter weather conditions in Marrakesh-Morocco,using a non linear mod... In this study we quantify and analyze different components of nocturnal losses from a heated greenhouse with the presence of vegetation for typical winter weather conditions in Marrakesh-Morocco,using a non linear model,based on the greenhouse heat and mass balance.It was found that 12% of the total input heat was dissipate as a sensible and latent leakage losses,66% was lost by convective exchange through air-inner cover.This gain of energy at the inner-cover is dissipated at the outer-cover by radiation(66%)and convection(34%).This results point toward some practical measures to reduce heat losses:increasing air tightness,using covering materials with low-emissivity in the long wave band or putting up an external thermal curtain should provide significant energy savings. 展开更多
关键词 GREENHOUSE energy balance heat losses numerical analysis.
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