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Dynamic Hand Gesture Recognition Based on Short-Term Sampling Neural Networks

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IEEE/CAA Journal of Automatica Sinica 2021年第1期8卷 110-120页

作者： wenjin zhang Jiacun Wang Fangping Lan the Department of Computer Science and Software Engineering Monmouth UniversityNew Jersey 07740 USA

Hand gestures are a natural way for human-robot *** based dynamic hand gesture recognition has become a hot research topic due to its various *** paper presents a novel deep learning network for hand gesture *** network integrates several well-proved modules together to learn both short-term and long-term features from video inputs and meanwhile avoid intensive *** learn short-term features,each video input is segmented into a fixed number of frame groups.A frame is randomly selected from each group and represented as an RGB image as well as an optical flow *** two entities are fused and fed into a convolutional neural network(Conv Net)for feature *** Conv Nets for all groups share *** learn longterm features,outputs from all Conv Nets are fed into a long short-term memory(LSTM)network,by which a final classification result is *** new model has been tested with two popular hand gesture datasets,namely the Jester dataset and Nvidia *** with other models,our model produced very competitive *** robustness of the new model has also been proved with an augmented dataset with enhanced diversity of hand gestures.

关键词： Convolutional neural network(ConvNet) hand gesture recognition long short-term memory(LSTM)network short-term sampling transfer learning

Effect and safety of Shengxuening (extract from excrement of bombyxin) for renal anemia： a systematic review

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Journal of Traditional Chinese Medicine 2016年第5期36卷 588-595页

作者： zhang Lei zhang wenjin Jin Hua Wang Dong Wei Ning Wang Yiping Department of Nephrology the First Affiliated Hospital ofAnhui University of Traditional Chinese Medicine Hefei 230031 China Graduated School of Anhui University of Traditional Chinese Medicine Hefei 230038 China

OBJECTIVE: To assess the effect and safety of Shengxuening(SXN), extract from excrement of bombyxin, in the treatment of renal anemia, compared to ferrous succinate and ferrous ***: According to the participant, intervention, comparison, outcomes, study design(PICOS)principles, we searched the Chinese Biomedical Literature Database, China National Knowledge Infrastructure Database, Chinese Evidence-Based Medicine Database, Wanfang Database(From establishment to December 2014). Two reviewers selected articles independently according to the inclusion and exclusion criteria. The quality of included studies was assessed by using the Cochrane *** statistical analyses were conducted by using Revman(vision 5.2) ***: A total of 14 randomized controlled trials(RCTs) were enrolled in the review. The results revealed that, when compared with blank group, SXN significantly improved the hemoglobin(P >) levels[MD = 6.29, 95% CI(1.65-10.94), P levels [MD = 10.98, 95% CI(6.97,14.99), P levels effectively [MD = 8.49, 95% CI(2.40, 14.58), P = 0.006].And the subgroups analysis shown that compared with ferrous-sulfate there were significant differences [MD = 17.4, 95% CI(15.06, 19.73), P < 0.000 01]and the result of ferrous-succinate had significant differences [MD = 5.34, 95% CI(2.12, 8.56), P =0.001] too. Compared with Intravenous iron groups, there were statistical differences [MD =- 5.04, 95% CI(- 9.59,- 0.50), P = 0.03]. In the safety analysis, the rate of adverse reactions in SXN groups and control groups were 19.3% and 3.7%,respectively(P < 0.000 01). Due to our studies were of poor methodological quality, and the sample size were small, the results were influenced by ***: Our findings suggest that the SXN had better effect and was safer

关键词： Kidney failure chronic Anemia Review Shengxuening

Referring image segmentation with attention guided cross modal fusion for semantic oriented languages

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Frontiers of Computer Science 2022年第6期16卷 187-189页

作者： Qianli ZHOU Rong WANG Haimiao HU Quange TAN wenjin zhang Police Information Engineering and Network Security College People's Public Security UniversityBeijing 100038China Computer Science and Engineering Beihang UniversityBeijing 100191China

1 Introduction Referring image segmentation aims to identify and segment the instance by language *** is a challenge task due to the combination of both language and visual domains[1].The current mainstream methods mainly focus on English,and can achieve an appropriated ***,it cannot achieve the similar performance while they are directly applied to semantic-oriented languages like Chinese due to the different language characteristics.

关键词： semantic image modal

Siamese single object tracking algorithm with natural language prior

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Frontiers of Computer Science 2021年第5期15卷 215-216页

作者： Qianli ZHOU Rong WANG Jinze LI Naiqian TIAN wenjin zhang Police Information Engineering and Network Security College People s Public Security University of ChinaBeijing 100038China Beijing Public Security Bureau Beijing 100740China Key Laboratory Of Security Technology and Risk Assessment of Ministry of Public Security Beijing 100038China

1 Introduction Visual tracking has long been considered as a fundamental mission in computer vision,and it has been widely used for many *** trackers[1]utilize Siamese network to do template matching and achieve state-of-the-art performance ***,the Siamese trackers fail to distinguish the target from the distractors with the same category and perform unstably in complicated *** find there are three reasons which affect the robustness and stability of the tracker.

关键词： template computer Visual

Temperature-induced liquid state change and its effects on solidification of thermoelectric alloy Bi_(0.3)Sb_(1.7)Te_3

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China Foundry 2014年第3期11卷 168-172页

作者： zhang wenjin Wu Zhan Yu Yuan Zu Fangqiu Liquid/Solid Metal Processing Institute School of Materials Science & Engineering Hefei University of Technology

The behaviors of electrical resistivity vs temperature(ρ-T) of the molten p-type thermoelectric alloy Bi0.3Sb1.7Te3(at.%) were explored in heating and cooling processes. An obvious hump appeared on the ρ-T curve from 932 ℃ to 1,020 ℃ at the heating process, while the curve became smooth in the following cooling, which suggests an irreversible temperature-induced liquid-liquid structure transition(TI-LLST) occurred in the liquid alloy. Based on this judgment, solidification experiments were carried out to find out the effects of the different liquid states. It was verified that, for the melt experiencing the presumed TI-LLST, both the nucleation and growth undercooling degrees were elevated and the solidification time was remarkably prolonged. On the other hand, the configuration of Bi0.3Sb1.7Te3 phase was refined, and its preferential orientation was weakened.

关键词： electrical resistivity liquid-liquid structure transition Bi0.3Sb1.7Te3 solidification

Effects of Intracratonic Strike-slip Fault on the Differentiation of Carbonate Microfacies: A Case Study of a Permian Platform Margin in the Sichuan Basin(SW China)

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Acta Geologica Sinica(English Edition) 2024年第4期98卷 936-954页

作者： LIU Jiawei WU Guanghui TANG Qingsong WU Yonghong zhang wenjin ZHAO Zhongyu School of Geoscience and Technology Southwest Petroleum UniversityChengdu 610500China Qiangtang Basin Research Institute Southwest Petroleum UniversityChengdu 610500China Southwest Petroleum University Division of Key Laboratory of Carbonate Reservoirs of CNPCChengdu 610500China PetroChina Southwest Oil&Gasfield Company Chengdu 610051China

In intracratnoic basins, the effect of strike-slip faults on sedimentary microfacies is generally underestimated due to their small scale. Based on the integration of core, well logs, and three-dimensional seismic data, this study presents a comprehensive analysis of the Permian carbonate platform and strike-slip faults in the southwestern Kaijiang-Liangping trough of the Sichuan Basin. The relationship between strike-slip faults and Permian carbonate microfacies is investigated. The results reveals the existence of a NW-trending strike-slip fault zone along the platform margin, exhibiting clear segmentation. The western side of the study area exhibits a rimmed platform margin characterized by type I reefs, which corresponds to the presence of a large-scale strike-slip fault zone. In contrast, the eastern side is characterized by a norimmed and weak rimmed platform margin, accompanied by type II reefs, which align with smaller strike-slip fault zones. It was found that the strike-slip fault had some effects on the platform and reef-shoal complex of the Permain Changxing Formation. First, the platform was divided by strike-slip fault into three segments to show rimmed, week rimmed and norimmed platform. Second, reef-shoal complex devolped along the faulted high position in the strike-slip fault zone, and separated by faulted depression. Third, strike-slip faults can offset or migrated the reef-shoal complex and platform margin. Additionally, the thickness of the platform margin varies across strike-slip fault zone, which is related to the activity of strike-slip faults. The strike-slip faults affect the microfacies by controlling the pre-depositional paleotopography. This case suggests that the strike-slip faults play a crucial role in the diversity and distribution of carbonate microfacies in the intracratonic basin.

关键词： strike-slip faults segmentation carbonate platform sediment dispersal pattern Changxing Formation Kaijiang–Liangping trough Sichuan Basin

RelicCARD:Enhancing cultural relics exploration through semantics-based augmented reality tangible interaction design

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Visual Informatics 2024年第3期8卷 32-41页

作者： Tao Yu Shaoxuan Lai wenjin zhang Jun Cui Jun Tao School of Computer Science and Engineering Sun Yat-sen UniversityGuangzhouChina Guangzhou Okay Information Technology Co. LtdGuangzhouChina Guangdong Provincial Institute of Cultural Relics&Archaeology GuangzhouChina

Cultural relics visualization brings digital archives of relics to broader audiences in many applications,such as education,historical research,and virtual ***,previous research mainly focused on modeling and rendering the *** enhancing accessibility,these techniques still provide limited ability to improve user *** this paper,we introduce RelicCARD,a semantics-based augmented reality(AR)tangible interaction design for exploring cultural *** design uses an easily available tangible interface to encourage the users to interact with a large collection of *** tangible interface allows users to explore,select,and arrange relics to form customized *** guide the design of the interface,we formalize a design space by connecting the semantics in relics,the tangible interaction patterns,and the exploration *** realize the design space as a tangible interactive prototype and examine its feasibility and effectiveness using multiple case studies and an expert ***,we discuss the findings in the evaluation and future directions to improve the design and implementation of the interactive design space.

关键词： Cultural relicsvisualization Interaction design Tangible interaction Augmented reality Immersive analytics

Theory and scientificity of traditional Chinese medicine

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Science of Traditional Chinese Medicine 2023年第1期1卷 26-34页

作者： Lanping Guo wenjin zhang Luqi Huang State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs Institute of Chinese Materia MedicaChina Academy of Chinese Medical SciencesBeijingChina School of Pharmacy Ningxia Medical UniversityYinchuanChina

TheNobelPrize for artemisinin and theCOVID-19pandemic have heightened interest in the disease prevention and treatment of traditional Chinesemedicine(TCM).However,uncertainty andmisinformation remain about some key ***,wediscuss the current literature showing that,despite TCM gaining recognition,the theoretical systems of TCM and Western medicine rooted in different cultural backgrounds have huge differences in their theories and *** to achieve accurate diagnosis in TCM,how to give scientific treatment,what is the mechanismof treatment,and what are the effect and safety of treatment,all need to be more clearly explained and require high-quality modern scientific *** emerging consensus exists that,with the help ofmodern technology and scientificmethods,it is necessary to excavate the essence of TCM that truly conforms to the laws of human life movement and disease development,realize cross-complementation with Western medicine,enhance human understanding of diseases,enrich diagnosis and treatment methods,and promote a new level in the field of life sciences.

关键词： Basic theory Scientific connotation Traditional Chinese medicine

Anisotropic optical and electronic properties of two- dimensional layered germanium sulfide

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Nano Research 2017年第2期10卷 546-555页

作者： Dezhi Tan Hong En Lim Feijiu Wang Nur Baizura Mohamed Shinichiro Mouri wenjin zhang Yuhei Miyauchi Mari Ohfuchi Kazunari Matsuda Institute of Advanced Energy Kyoto University Uji Kyoto 611-001 I Japan Fujitsu Laboratories Ltd. Atsugi 243-0197 Japan

Two-dimensional （2D） layered materials, transition-metal dichalcogenides, and black phosphorus have attracted considerable interest from the viewpoints of fundamental physics and device applications. The establishment of new functionalities in anisotropic layered 2D materials is a challenging but rewarding frontier, owing to the remarkable optical properties of these materials and their prospects for new devices. Herein, we report the anisotropic and thickness- dependent optical properties of a 2D layered monochalcogenide of germanium sulfide （GeS）. Three Raman-scattering peaks corresponding to the B3g,, A1g, and A2g modes with a strong polarization dependence are demonstrated in the GeS flakes, which validates polarized Raman spectroscopy as an effective method for identifying the crystal orientation of anisotropic layered GeS. Photoluminescence （PL） is observed with a peak at -1.66 eV that originates from the direct optical transition in GeS at room temperature. The polarization-dependent characteristics of the PL, which are revealed for the first time, along with the demonstration of anisotropic absorption, indicate an obvious anisotropic optical transition near the band edge of GeS, which is supported by density functional theory calculations. The significantly thickness-dependent PL is observed and discussed. This anisotropic layered GeS presents opportunities for the discovery of new physical phenomena and will find applications that exploit its anisotropic properties, such as polarization-sensitive photodetectors.

关键词： germanium sulfide anisotropic optical property 2D layered materials photoluminescence polarized optical spectroscopy