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The study of dorsal hippocampal potential and neuronal activity during the spatial discrimination cognition in awaked guinea pigs

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中国药理通讯 2005年第4期22卷 53-54页

作者： huang Wei Sui jian - feng Department of Physiology Third Military Medical University Chongqing 400038

Application of numerical simulation on optimum design of two-dimensional sedimentation tanks in the wastewater treatment plant

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Journal of Environmental Sciences 2003年第3期15卷 346-350页

作者： ZENG Guang-ming,ZHANG Shuo-fu, QIN Xiao-sheng, huang Guo-he, LI jian-bing (Department of Environmental Science and Engineering of Hunan University, Changsha 410082, China.) Department of Environmental Science and Engineering of Hunan University Changsha 410082 Chin

The paper establishes the relationship between the settling efficiency and the sizes of the sedimentation tank through the process of numerical simulation, which is taken as one of the constraints to set up a simple optimum designing model of sedimentation tank. The feasibility and advantages of this model based on numerical calculation are verified through the application of practical case.

关键词： numerical simulation sedimentation tank optimum design

基于加权特征空间信息视觉词典的图像检索模型

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计算机应用 2014年第4期34卷 1172-1176,1226页

作者：董健盐城师范学院信息科学与技术学院江苏盐城224002

针对传统的视觉词袋模型中视觉词典对底层特征量化时容易引入量化误差,以及视觉单词的适用性不足等问题,提出了基于加权特征空间信息视觉词典的图像检索模型。从产生视觉词典的常用聚类算法入手,分析和探讨了聚类算法的特点,考虑聚类过... 详细信息

针对传统的视觉词袋模型中视觉词典对底层特征量化时容易引入量化误差,以及视觉单词的适用性不足等问题,提出了基于加权特征空间信息视觉词典的图像检索模型。从产生视觉词典的常用聚类算法入手,分析和探讨了聚类算法的特点,考虑聚类过程中特征空间的特征分布统计信息,通过实验对不同的加权方式进行对比,得出效果较好的均值加权方案,据此对视觉单词的重要程度加权,提高视觉词典的描述能力。对比实验表明,在ImageNet图像数据集上,相对于同源视觉词典,非同源视觉词典对视觉空间的划分影响较小,且基于加权特征空间信息视觉词典在大数据集上更加有效。

关键词：图像搜索视觉词袋模型加权特征空间信息视觉词典聚类算法

Plasma Current Profile During Current Reversal in a Tokamak

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Chinese Physics Letters 1999年第11期16卷 830-832页

作者： huang jian-guo YANG Xuan-zong ZHENG Shao-bai FENG Chun-hua ZHANG Hou-xian WANG Long Institute of Physics Chinese Academy of Sciences100080 Beijing

Alternating current operation with one full cycle and a current level of 2.5kA have been achieved in the CT-6B tokamak. The poloidal magnetic field in the plasma is measured with two internal magnetic probes in repeated discharges. The current distribution is reconstructed with an inversion algorithm. The inversed current first appears on the weak field side. The existence of magnetic surfaces and rotational transform provide particle confinement in the current reversal phase.

关键词： magnetic Plasma field

Effects of Transgenic Bt+CpTI Cotton on Field Abundance of Non-Target Pests and Predators in Xinjiang, China

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Journal of Integrative Agriculture 2012年第9期11卷 1493-1499页

作者： XUYao WU Kong-ming LI Hao-bing LIU jian DING Rui-feng WANG Fei Ahtam Uwayis LI Hai-qiang WANG dong-mei CHEN Xue-xin Key Laboratory of Agricultural Entomology Ministry of Agriculture/Institute oflnsect Sciences Zhejiang University Hangzhou 310029 P. R. China State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant Protection Chinese Academy of Agricultural Sciences Beijing 100193 P.R.China Institute of Plant Protection Xinjiang Academy of Agricultural Sciences Urumqi 830091 P.R.China

Transgenic insect-resistant cotton is being increasingly planted in Xinjiang cotton-planting regions, where geographical climate conditions and species composition of pests and natural enemies are greatly unique in China. Limited studies have been conducted on the ecological impacts of transgenic insect-resistant cotton, especially for transgenic double genes （Bt＋CpTI） cotton, in this region. In this study, the potential effects of transgenic Bt＋CpTI cotton on the seasonal abundance of non-target pests and predators were assessed from 2009 to 2011 in Korla, Xinjiang. The results showed that species composition and seasonal abundance of 5 groups of pests and 5 groups of predators were not significantly different between transgenic Bt＋CpTI cotton and non-transgenic cotton every year. It suggests that transgenic Bt＋CpTI cotton per se does not affect the population dynamics of non-target pests and predators on this crop in Xinjiang.

关键词： transgenic Bt+CpTI cotton non-target pests predators Xinjiang

Nomograms for pre-and postoperative prediction of long-term survival among proximal gastric cancer patients: A large-scale,single-center retrospective study

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World Journal of Clinical Cases 2019年第21期7卷 3419-3435页

作者： Qi-Yue Chen Zhi-Liang Hong Qing Zhong Zhi-Yu Liu Xiao-Bo huang Si-Jin Que Ping Li jian-Wei Xie Jia-Bin Wang jian-Xian Lin Jun Lu Long-Long Cao Mi Lin Ru-Hong Tu Chao-Hui Zheng Chang-Ming huang Department of Gastric Surgery Fujian Medical University Union HospitalFuzhou 350001Fujian ProvinceChina Department of General Surgery Fujian Medical University Union HospitalFuzhou 350001Fujian ProvinceChina Key Laboratory of the Ministry of Education of Gastrointestinal Cancer Fujian Medical UniversityFuzhou 350001Fujian ProvinceChina Fujian Key Laboratory of Tumor Microbiology Fujian Medical UniversityFuzhou 350001Fujian ProvinceChina

BACKGROUND The incidence of proximal gastric cancer(GC)is increasing,and methods for the prediction of the long-term survival of proximal GC patients have not been well *** To develop nomograms for the prediction of long-term survival among proximal GC *** Between January 2007 and June 2013,we prospectively collected and retrospectively analyzed the medical records of 746 patients with proximal GC,who were divided into a training set(n=560,75%)and a validation set(n=186,25%).A Cox regression analysis was used to identify the preoperative and postoperative risk factors for overall survival(OS).RESULTS Among the 746 patients examined,the 3-and 5-year OS rates were 66.1%and 58.4%,*** the training set,preoperative T stage(cT),N stage(cN),CA19-9,tumor size,ASA core,and 3-to 6-mo weight loss were incorporated into the preoperative nomogram to predict the *** addition to these variables,lymphatic vascular infiltration(LVI),postoperative tumor size,T stage,N stage,blood transfusions,and complications were incorporated into the postoperative *** calibration curves used to determine the OS probability fit *** the training set,the preoperative nomogram achieved a C-index of 0.751[95%confidence interval(CI):0.732-0.770]in predicting OS and accurately stratified the patients into four prognostic subgroups(5-year OS rates:86.8%,73.0%,43.72%,and 20.9%,P<0.001).The postoperative nomogram had a C-index of 0.758 in predicting OS and accurately stratified the patients into four prognostic subgroups(5-year OS rates:82.6%,74.3%,45.9%,and 18.9%,P<0.001).CONCLUSION The nomograms accurately predicted the pre-and postoperative long-term survival of proximal GC patients.

关键词： Proximal gastric cancer Preoperative Nomogram Prediction Prognosis

Experimental study on fracture and gushing mechanism of surrounding rock of fault caused by tunnel excavation disturbance

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Yantu Lixue/Rock and Soil Mechanics 2020年 41卷 405-413页

作者： Li, Yang-Yang Yang, Wei-Hong Zhang, Shi-Chuang Xu, Ya-dong Guan, Yu-Qi Sun, jian State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology Shandong University of Science and Technology Qingdao 266590 China Linyi Shandong Energy Mining Group Co. Ltd Linyi 276017 China

Tunnel water inrush has the characteristics of strong suddenness and great disaster, the crack propagation and coalescence, and gushing formation mechanism of surrounding rocks are relatively complicated. In order to study the fracture and gushing mechanism of surrounding rock under the disturbance of tunnel excavation, a subway station was taken as the engineering background a non-hydrophilic fluid-solid coupling similar material was developed to meet similar conditions, simulation test of fracture and gushing of surrounding rock of fault caused by tunnel excavation disturbance was conducted. The research results show that the main influence range of tunnel excavation on the surrounding rock of the side wall is within 1 times the diameter, and the rock within the disturbance range will experience loosening and squeezing movement. Excavation disturbance could affect the internal rock up to twice the diameter, while the main affected area is within the range of 1 times 1 times the diameter. When the tunnel face is far away from the fault, the change in fault water pressure is mainly concentrated in the excavation gap. The fractures in the surrounding rock of the fault will expand in stages due to the influence of the fault hydraulic pressure. When the tunnel faces is near the fault, the excavation disturbance has greater influence on the surrounding rock of the fault, the frequency of phased expansion of surrounding rock fissures increases, and the single amplitude decreases, while the total change increase by 1/3. According to the comprehensive analysis of test data, the surrounding rock of the tunnel has produced a connecting fissure connected to the fault surrounding rock at twice the diameter of the tunnel after the completion of the first stage of the tunnel excavation. With the advancement of tunnel excavation, connected fissures were successively generated at the arch waist and shoulder of the tunnel. Under the influence of the fault hydraulic pressure and exc

关键词： Fracture

基于Hilbert谱脊线盒维数的微弱目标检测算法

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电子学报 2012年第12期40卷 2404-2409页

作者：张建关键黄勇何友海军航空工程学院电子信息工程系山东烟台264001 海军航空工程学院接改装训练大队山东烟台264001

在目标检测领域,分形理论中的盒维数常被用来检测海杂波中的微弱目标,但直接采用盒维数检测目标却得不到的较好检测性能.为提高采用盒维数检测目标方法的检测性能,文章在Hilber-t huang变换域分析了实测海杂波数据的Hilbert谱脊线盒维... 详细信息

在目标检测领域,分形理论中的盒维数常被用来检测海杂波中的微弱目标,但直接采用盒维数检测目标却得不到的较好检测性能.为提高采用盒维数检测目标方法的检测性能,文章在Hilber-t huang变换域分析了实测海杂波数据的Hilbert谱脊线盒维数特性以及目标的影响,提出了采用Hilbert谱脊线盒维数检测目标的方法.仿真结果表明,目标出现时海杂波的Hilbert谱脊线盒维数明显减小,采用Hilbert谱脊线盒维数检测海杂波中的微弱目标能够获得较好的检测性能,其性能要优于直接采用盒维数的目标检测方法和多脉冲单元平均恒虚警检测方法的检测性能.

关键词：海杂波 Hilbert谱脊线盒维数目标检测

A stochastic user equilibrium model solving overlapping path and perfectly rational issues

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Journal of Central South University 2021年第5期28卷 1584-1600页

作者： YAN dong-mei GUO jian-hua Intelligent Transportation System Research Center Southeast UniversityNanjing 211189China

Traffic assignment has been recognized as one of the key technologies in supporting transportation planning and *** better address the perfectly rational issue of the expected utility theory(EUT)and the overlapping path issue of the multinomial logit(MNL)model that are involved in the traffic assignment process,this paper proposes a cumulative prospect value(CPV)-based generalized nested logit(GNL)stochastic user equilibrium(SUE)*** proposed model uses CPV to replace the utility value as the path performance within the GNL model *** equivalent mathematical model is provided for the proposed CPV-based GNL SUE model,which is solved by the method of successive averages(MSA).The existence and equivalence of the solution are also proved for the equivalent *** demonstrate the performance of the proposed CPV-based GNL SUE model,three road networks are selected in the empirical *** results show that the proposed model can jointly deal with the perfectly rational issue and the overlapping path issue,and additionally,the proposed model is shown to be applicable for large road networks.

关键词： stochastic user equilibrium cumulative prospect theory generalized nested logit method of successive averages