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推销过程中成交阶段成交方法的运用
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作者 孙丽英 《山东青年政治学院学报》 2005年第4期125-126,共2页
成交是推销过程中最重要、最关键的阶段。推销人员在成交阶段要千方百计促成交易。掌握及灵活运用成交方法是促成交易的关键。其具体方法有:直接请求成交法、假定成交法、选择成交法、小点成交法。
关键词 推销过程 成交方法 成交方法的运用
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试论《WTO估价协议》与我国海关审价制度
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作者 聂影 杨红强 《江苏对外经贸论坛》 2002年第1期57-61,共5页
关键词 WTO估价协议 海关审价制度 成交价格估价方法 立法 价格审报制度 管理机制 审价专家制度
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Synthesis of optically active lactide catalyzed by nanocrystals of La-Ti composite oxides 被引量:1
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作者 谷俐 李菲 +1 位作者 马红霞 张洋 《Journal of Central South University of Technology》 EI 2008年第4期469-473,共5页
With sol-gel method,nanometer La-Ti composite oxides were prepared.By means of atomic force microscope,the surface pattern,particle size distribution and specific surface area were studied.The newly prepared nanocryst... With sol-gel method,nanometer La-Ti composite oxides were prepared.By means of atomic force microscope,the surface pattern,particle size distribution and specific surface area were studied.The newly prepared nanocrystals of La-Ti composite oxides were used as the catalysts to catalyze the dehydration of external compensated lactic acid to lactide.The lactide product was measured by polarimeter and micropolariscope.The results demonstrate that the ratio between D-lactide and L-lactide will not be equal to 1-1 if nanocrystals of La-Ti composite oxides are used as the catalysts,which implies,that nanocrystals of La-Ti composite oxides may be potential catalysts with a good selectivity. 展开更多
关键词 La-Ti composite oxides lactic acid LACTIDE CATALYSIS optical activity
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Synthesis and structural characterization of macroporous bioactive glass 被引量:1
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作者 周智华 阮建明 +2 位作者 邹俭鹏 周忠诚 申雄军 《Journal of Central South University of Technology》 EI 2007年第3期301-304,共4页
Porous sol-gel glass of CaO-SiO2-P2O5 system with macropores larger than 100 μm was prepared by adding stearic acid as pore former when the sintering was carried out at 700 ℃ for 3h.The sol-gel porous glass shows an... Porous sol-gel glass of CaO-SiO2-P2O5 system with macropores larger than 100 μm was prepared by adding stearic acid as pore former when the sintering was carried out at 700 ℃ for 3h.The sol-gel porous glass shows an amorphous structure. The diameter of the pore created by pore former varies from 100 to 300 μm, and macroporous glass has a narrow and small pore size distribution in mesoporous scale. The porosity and pore size of macroporous bioactive glass can be controlled. 展开更多
关键词 macroporous glass sol-gel method SYNTHESIS structural characterization
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Energy-Efficient Transceiver Design for Multi-Pair Two-Way Relay Systems 被引量:3
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作者 Fei Zesong Li Na +1 位作者 Xing Chengwen Gong Shiqi 《China Communications》 SCIE CSCD 2015年第9期133-140,共8页
In this paper, we focus on energy-efficient transceiver and relay beamforming design for multi-pair two-way relay system. The multi-antenna users and the multi-antenna relay are considered in this work. Different from... In this paper, we focus on energy-efficient transceiver and relay beamforming design for multi-pair two-way relay system. The multi-antenna users and the multi-antenna relay are considered in this work. Different from the existing works, the proposed algorithm is energy-efficient which is more applicable to the future green network. It considers both the sum-MSE problem and the power consumption problem for the users under the relay power constraint. Based on the optimal condition decomposition(OCD) method, the energy-efficient precoders at the users can be designed separately with limited information exchanged. The proposed relay beamforming algorithm is based on the alternative direction method of multipliers(ADMM) which has simpler iterative solution and enjoys good convergence. Simulation results demonstrate the performance of the proposed algorithms in terms of power consumption and MSE performance. 展开更多
关键词 two-way relay energy efficient optimal condition decomposition alternative direction method of multipliers
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An Operational Method for Fast Detecting Abnormal Channels in Imaging Spectrometers
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作者 MA Jiping LI Deren TONG Qingxi ZHENG Lanfen 《Geo-Spatial Information Science》 2002年第4期50-54,共5页
Data from abnormal channels in an imaging spectrometer almost always exerts an undesired impact on spectrum matching,classification,pattern recognition and other applications in hyperspectral remote sensing.To solve t... Data from abnormal channels in an imaging spectrometer almost always exerts an undesired impact on spectrum matching,classification,pattern recognition and other applications in hyperspectral remote sensing.To solve this problem,researchers should get rid of the data acquired by these channels.Selecting abnormal channels just in the way of visually examining each band image in a imaging data set is a conceivably hard and boring job.To relieve the burden,this paper proposes a method which exploits the spatial and spectral autocorrelations inherent in imaging spectrometer data,and can be used to speed up and,to a great degree,automate the detection of abnormal channels in an imaging spectrometer.This method is applied easily and successfully to one PHI data set and one Hymap data set,and can be applied to remotely sensed data from other hyperspectral sensors. 展开更多
关键词 imaging spectrometer mutual information IHR
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