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Research on Human Action Recognition Based on Improved Pooling Algorithm 32

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Research on Human Action Recognition Based on Improved Pooli...

A case of occult insulinoma localized by pancreatic dynamic enhanced spiral CT

第32届中国控制与决策会议

作者： SHEN Hanxu LI Yue CHEN Hao LIU Qiongyang YANG Xiaonan WEI Yongquan gong jun School of Information Science ＆ Engineering Northeastern University

ISBN: (纸本)9781728158549

With the rapid development of deep learning,human behavior recognition has become a focus of *** using various artificial neural network training models to recognize human behavior,the problem of overfitting has always been a difficult point that hinders the improvement of the accuracy of *** paper combines stochastic pooling and Dropout,proposes an improved stochastic pooling method based on Dropout,and applies it to a3 D convolutional neural network for human behavior recognition to solve the problem of *** the training phase,the Dropout method is introduced into the pooling layer of the 3 DCNN,and the unit values of the pooling layer are randomly suppressed,so that more sub-models are generated on the pooling *** the testing phase,the idea of double probability weighting method is introduced The idea of combining the weight of the activation value of the selected neuron and the activation value of the selected neuron is introduced to obtain an approximate model of all ***,the trained model was input into the UCF101 data set for verification,and an accuracy rate of 70.09% was *** results show that this method can extract more general features,enhance generalization ability,effectively suppress overfitting,and improve accuracy.

关键词： Stochastic pooling Dropout Model average 3DCNN

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World Journal of Gastroenterology 2010年第11期16卷 1418-1421页

作者： Bao, Zhao-Kang Huang, Xin-Yu Zhao, jun-gong Zheng, Qi Wang, Xiao-Feng Wang, Hong-Cheng Shanghai Jiao Tong Univ Affiliated Peoples Hosp 6 Dept Gen Surg Shanghai 200233 Peoples R China Shanghai Jiao Tong Univ Affiliated Peoples Hosp 6 Dept Radiol Shanghai 200233 Peoples R China

Insulinomas are the most common category of pancreatic endocrine tumors,with an annual incidence of 1-4 cases per million *** are intrapancreatic,benign and ***,they have an excellent prognosis after surgical ***,the localization diagnosis of insulinomas still poses a challenge to surgeons and *** this case,the tumor was occult and could not be found by either abdominal enhanced spiral computed tomography(CT)or ***,we tried a new method of CT scanning and localized the tumor.

关键词： Insulinoma Computed tomography Localization diagnosis Dynamic enhanced scan Enhancement value

N,P Co-Doped Carbon Dots as Multifunctional Fluorescence Nano-Sensor for Sensitive and Selective Detection of Cr(Ⅵ) and Ascorbic Acid

维普期刊数据库评论

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Journal of Analysis and Testing 2022年第3期6卷 335-345页

作者： Yu-Lu Tian Ya-Yun Ji Xue Zou Qiu-Meng Chen Sheng-Li Zhang Zheng-jun gong Faculty of Geosciences and Environmental Engineering Southwest Jiaotong UniversityChengdu 611756China State-Province Joint Engineering Laboratory of Spatial Information Technology of High-Speed Rail Safety Chengdu 611756China

It is particularly important to monitor Cr(Ⅵ)for its high *** this paper,a novel,simple,low-cost and"on-off-on"fluorescence sensor of carbon dots doped with nitrogen and phosphorus(N,P-CDs)was developed via one-step hydrothermal method for highly sensitive and good selective detection of Cr(Ⅵ)and ascorbic acid(AA).The prepared N,P-CDs exhibited the ability for detection of Cr(Ⅵ)based on the inner filter effect(IFE)and static *** optimized conditions,the fluorescence quenching efficiency of N,P-CDs showed a good linear correlation with Cr(Ⅵ)concentration ranged from0.68 to 87.38μmol/L(R^(2)=0.9946).The limit of detection(LOD)was 0.18μmol/L,which was acceptable compared with the maximum Cr(Ⅵ)concentration of 0.96μmol/L in drinking water prescribed by *** addition,the N,P-CDs/Cr(Ⅵ)hybrid were also used as"turn-on"fluorescent transducers for detecting AA with a wide linear region ranged from 0.02 to933.33μmol/L(R^(2)=0.9972).Furthermore,the N,P-CDs fluorescence sensor had admissible applicability for Cr(Ⅵ)and AA detection in actual water samples with acceptable recovery rate,indicating that the fluorescence sensor had great application potential in environmental monitoring and food field.

关键词： N,P-CDs Cr(Ⅵ) Ascorbic acid Fluorescence quenching Inner filter effect Static quenching effect

Virulence and Diversity of Blumeria graminis *** Populations in China

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Journal of Integrative Agriculture 2014年第11期13卷 2424-2437页

作者： ZENG Fan-song YANG Li-jun gong Shuang-jun SHI Wen-qi ZHANG Xue-jiang WANG Hua XIANG Li-bo XUE Min-Feng YU Da-zhao Laboratory of Integrated Pest Management on Crop in Central China Ministry of Agriculture/Institute for Plant Protection and Soil ScienceHubei Academy of Agricultural Sciences College of Life Sciences Wuhan University

Wheat powdery mildew, caused by Blumeria graminis f. sp. tritici, is an important disease in China. To characterize the virulence and diversity of the pathogen, 1 082 isolates were obtained from 8 major wheat-growing regions during the spring growing season in 2011. The virulence test was performed by inoculation on detached leaves of 22 differential lines with known Pm genes. Frequencies of virulence on these genotypes ranged from 0 to 97.4%. None of the 1 082 isolates was compatible to Pm21 and less than 20.0%were virulent to the genotype carrying Pm13. In contrast, the virulence frequencies of each population was more than 50.0%to differentials carrying Pm1a, Pm3b, Pm3c, Pm3f, Pm5a, Pm6 and Pm8. In total, 1 028 pathotypes were detected, of which 984 were unique. Phenotypic diversity indices revealed a high level of diversity within populations. Genetic distance between different populations correlated signiifcantly with geographical distance （R2=0.494, P 0.001）. In addition, isolates from Xinjiang appear to form a separate group. Signiifcant positive or negative associations between alleles at pairs of virulence loci were detected in 57 allele pairs to Pm genes. Virulence and diversity of the 8 populations suggested that varieties with effective resistance gene combinations should be developed at a regional level.

关键词： Blumeria graminis f.sp. tritici virulence diversity wheat China

Free-Standing Membrane Liquid-State Platform for SERS-Based Determination of Norfloxacin in Environmental Samples

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Journal of Analysis and Testing 2021年第3期5卷 217-224页

作者： Jing Liu Wen Liu Sha-Na Zhou Dong-Mei Wang Zheng-jun gong Mei-Kun Fan Faculty of Geosciences and Environmental Engineering Southwest Jiaotong UniversityChengdu 610031China

Surface-enhanced Raman scattering(SERS)has been widely used in various fields due to high sensitivity,but it is hindered by its low ***,we explored a highly reproducible free-standing liquid-state platform(FSM)for monitoring norfloxacin(NOR)in the environmental *** optimizing the types of nanoparticles(NPs)and pH value in NOR solution,the relative standard deviation(RSD)of FSM SERS analysis can be stabilized below 10%(n≥8),and the R^(2)of the calibration curve in the range of 20μg/L-100μg/L was *** addition,the results showed that the limit of detection(LOD)(3σ/k)of NOR was 1.3μg/***,the NOR in the spiked samples was successfully quantified by FSM,and the recovery rate exceeded 95%.The proposed method has the potential for rapid analysis of drug residues in environmental samples.

关键词： SERS Norfloxacin Drug residues Environmental samples FSM

Amyloid fibril-supported Pd nanoparticles as electrocatalyst for hydrogen peroxide reduction

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Nuclear Science and Techniques 2016年第4期27卷 152-157页

作者： Li-Xia Kong Lan-Jie Wang Lan-Lan Su Zhi-Jie Zhao Zhong-Dan Yan gong-jun Zhang Xing-Fei Zhou Faculty of Science Ningbo University Ningbo Institute of Material Technology and Engineering Chinese Academy of Sciences

Palladium nanoparticles(Pd NPs) were fabricated by using insulin amyloid fibrils(INSAFs) as *** force microscopy measurements showed that ultrasmall Pd NPs were well adsorbed and dispersed on surfaces of INSAFs. X-ray photoelectron spectroscopy confirmed the partial reduction of Pd ion into metallic Pd(0) probably due to the presence of Cys groups on surface of the insulin fibrils. The electrochemical performance of Pd/INSAFs to reduction of H_2O_2 was further evaluated by cyclic voltammetry. The remarkably high electrocatalytic activity, low detection limitation and excellent stability make the Pd/INSAFs a promising bio-nanoelectrocatalyst.

关键词： Pd纳米粒子纤维表面过氧化氢还原催化剂粉样钯纳米粒子 X射线光电子能谱负载

Synthesis,Structural Characterization of Ferrocenyl Iminophosphines and Amidophosphines as Well as Their Application in the Suzuki Reaction

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Chemical Research in Chinese Universities 2007年第6期23卷 683-687页

作者： gong jun-fang ZHANG Yan-hui FAN Xin-heng WANG Da-wei SONG Mao-ping WU Yang-jie Department of Chemistry Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities Zhengzhou University Zhengzhou 450052 P. R. China

Ferrocenyliminophosphine 1 and 1,1′-bisferrocenyliminophosphine 2 were easily prepared from the condensation of formylferrocene or 1,1′-diformylferrocene with 2-（diphenylphosphino） aniline. The following reduction of imine group by LiAlH4 led to the formation of the corresponding ferrocenyl amidophosphines 3 and 4. The new ligands 2- 4 were well characterized by IR, ^1H NMR, ^31p NMR spectra, elemental analysis, and ESI-MS. The catalytic activity of all the ligands with palladium compounds in the Suzuki reaction was evaluated. Ligand 1, in combination with Pd （OAc）2, was found to be the most effective for the Suzuki reaction of aryl bromides with phenylboronic acid. Typically, the use of 0. 1% （molar fraction） of Pd（OAc）2/ligand 1 in the presence of two equivalents of K2CO3 as base in toluene at 110 ℃ provided good to excellent yields of the coupled products.

关键词： Ferrocenyl Iminophosphine Amidophosphine Synthesis Suzuki reaction

Beneficial effects of silicon on photosynthesis of tomato seedlings under water stress

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Journal of Integrative Agriculture 2018年第10期17卷 2151-2159页

作者： ZHANG Yi SHI Yu gong Hai-jun ZHAO Hai-liang LI Huan-li HU Yan-hong WANG Yi-chao College of Horticulture Shanxi Agricultural University College of Horticulture Northwest A&F University

Silicon can improve drought tolerance of plants,but the mechanism still remains *** studies have mainly concentrated on silicon-accumulating plants,whereas less work has been conducted in silicon-excluding plants,such as tomato（Solanum lycopersicum L.）.In this study,we investigated the effects of exogenous silicon（2.5 mmol L^（-1））on the chlorophyll fluorescence and expression of photosynthesis-related genes in tomato seedlings（Zhongza 9）under water stress induced by 10%（w/v）polyethylene glycol（PEG-6000）.The results showed that under water stress,the growth of shoot and root was inhibited,and the chlorophyll and carotenoid concentrations were decreased,while silicon addition improved the plant growth and increased the concentrations of chlorophyll and *** water sterss,chlorophyll fluorescence parameters such as PSII maximum photochemical efficiency（F_v/F_m）,effective quantum efficiency,actual photochemical quantum efficiency（Ф_（PSII））,photosynthetic electron transport rate（ETR）,and photochemical quenching coefficient（q_P）were decreased;while these changes were reversed in the presence of added *** expressions of some photosynthesis-related genes including PetE,PetF,PsbP,PsbQ,PsbW,and Psb28 were down-regulated under water stress,and exogenous Si could partially up-regulate their *** results suggest that silicon plays a role in the alleviation of water stress by modulating some photosynthesis-related genes and regulating the photochemical process,and thus promoting photosynthesis.

关键词： tomato water stress silicon photosynthesis

Risk factors for operative morbidity and mortality in gastric cancer patients undergoing total gastrectomy

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World Journal of Gastroenterology 2008年第42期14卷 6560-6563页

作者： Dao-jun gong hao-Feng Miao Qi Bao Ming Jiang Li-Fang Zhang Xiao-Tao Tong Li Chen Department of Surgery Second Affiliated Hospital Zhejiang University College of Medicine Hangzhou 310009 Zhejiang Province China

AIM： To study the risk factors for morbidity and mortality following total gastrectomy. METHODS： We retrospectively reviewed the records of 125 consecutive patients who underwent total gastrectomy for gastric cancer at the Second Affiliated Hospital of Zhejiang University School of Medicine between January 2003 and March 2008. RESULTS： The overall morbidity rate was 20.8% （27 patients） and the mortality rate was 3.2% （4 patients）. Morbidity rates were higher in patients aged over 60 [odds ratio （OR） 4.23 （95% confidence interval （CI） 1.09 to 12.05）], with preoperative comorbidity [with vs without, OR 1.25 （95% CI 1.13 to 8.12）], when the combined resection was performed [combined resection vs total gastrectomy only, OR 2.67 （95% CI 1.58 to 5.06）]. CONCLUSION： Age, preoperative comorbidity and combined resection were with the rate of morbidity gastric cancer. independently associated after total gastrectomy for

关键词： Gastric cancer Total gastrectomy Morbidity Mortality Risk factor