检索结果-南通市图书馆

Feasibility of chipscale integration of single-photon switched digital loop buffer

在线全文

学校读者我要写书评

暂无评论

Chip 2022年第4期1卷 22-28页

作者： xiaoxi wang Shayan Mookherjea University of California San DiegoDepartment of Electrical and Computer En-gineeringLa JollaCalifornia 92093-0407USA

A strategy for realizing a microchip-scale single-photon digital loop buffer controlled by low-voltage electronic signals was studied in the context of integrated photonics.A potential implementation for bridg-ing a gap between other technologies used a recirculating loop archi-tecture based on advances in low-loss passive waveguides and a fast electro-optic add-drop *** the requirements of single-photon buffers are demanding,our analysis suggested that a voltage-controlled,room-temperature catch-and-store short-term quantum memory for light on a chip may be feasible in certain regimes.

关键词： Quantum optics Integrated photonics Electro-optic devices

A New Evaluation Algorithm for the Influence of User in Social Network

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Communications 2016年第2期13卷 200-206页

作者： JIANG Wei GAO Mengdi wang xiaoxi WU Xianda College of Computer Science Beijing University of TechnologyBeijing100124China School of Computer National University of Defense TechnologyChangsha 410073China Beijing Key Laboratory of Trusted Computing Beijing100124China

Online social networks have gradually permeated into every aspect of people's *** a research hotspot in social network, user influence is of theoretical and practical significant for information transmission, optimization and integration. A prominent application is a viral marketing campaign which aims to use a small number of targeted infl uence users to initiate cascades of infl uence that create a global increase in product adoption. In this paper, we analyze mainly evaluation methods of user infl uence based on IDM evaluation model, Page Rank evaluation model, use behavior model and some other popular influence evaluation models in currently social network. And then, we extract the core idea of these models to build our influence evaluation model from two aspects, relationship and activity. Finally, the proposed approach was validated on real world datasets,and the result of experiments shows that our method is both effective and stable.

关键词： social networks influence opinionleaders

A systematic review of highland barley:Ingredients,health functions and applications

在线全文

学校读者我要写书评

暂无评论

Grain & Oil Science and Technology 2022年第1期5卷 35-43页

作者： Yiming Lyu Sen Ma Jingke Liu xiaoxi wang College of Food Science and Engineering Henan University of TechnologyZhengzhou 450001China Institute of Millet Crops Hebei Academy of Agriculture and Forestry SciencesNational FoxtailMillet Improvement CenterMinor Cereal Crops Laboratory of Hebei ProvinceShijiazhuang 050035China

Due to its high nutritional and dietotherapy values,highland barley has attracted the attention and favor of people all over the world in recent *** has been demonstrated that the nutritional components of highland barley are comprehensive and unique,with the characteristics of high protein,high fiber,high vitamin,lowfat,low sugar and variety of bioactive *** the most important component in highland barley,highland barley starch not only has low digestibility,but also has good freeze-thaw stability,high solubility,good emulsion stability and superior film forming performance,which makes it have great application value in food,medicine and industrial *** content of highland barley protein,which is rich in 18 kinds of amino acids,is higher than that of most grains,and its derivatives play an important role in medical ***,highland barley protein cannot form gluten network structure,which limits the application in daily staple food to a certain *** barley also contains a large amount of dietary fiber,especiallyβ-***-term consumption could significantly reduce the incidence of chronic diseases and metabolic syndromes such as heart disease and ***,the research on the application of highland barley is still in the laboratory stage,which failed to achieve large-scale application in the actual *** value of highland barley has not been brought into full play,which leads to the waste of its resources and the reduction of its added *** paper reviewed themacronutrients,health functions and applications of highland barley,aiming to provide some reference for the development of highland barley in food and health industry.

关键词： Highland barley Macronutrients Physicochemical property Application

Tracking Your Browser with High-Performance Browser Fingerprint Recognition Model

在线全文

学校读者我要写书评

暂无评论

China Communications 2020年第3期17卷 168-175页

作者： Wei Jiang xiaoxi wang Xinfang Song Qixu Liu Xiaofeng Liu Chinese Academy of Cyberspace Studies Beijing 100010China College of Computer Science Beijing University of TechnologyBeijing100124China Beijing Information Technology College Beijing100015China Institute of Information Engineering Chinese Academy of SciencesBeijing100093China University of Chinese Academy of Sciences Beijing100049China

As the cyber security has attracted great attention in recent years,and with all kinds of tools’(such as Network Agent,VPN and so on)help,traditional methods of tracking users like log analysis and cookie have been not that *** for some privacy sensitive users who changed their browser configuration frequently to hide *** Browser Fingerprinting technology proposed by Electronic Frontier Foundation(EFF)gives a new approach of tracking users,and then our team designed an enhanced fingerprint dealing solution based on browser fingerprinting *** enhanced solution plays well in recognizing the similar fingerprints,but it is not that *** we improve the algorithm and propose a high-performance,efficient Browser Fingerprint Recognition *** new model reforms the fingerprint items set by EFF and propose a Fingerprint Tracking Algorithm(FTA)to deal with collected *** can associate users with some browser configuration changes in different periods of time quickly and *** testing with the experimental website built on the public network,we prove the high-performance and efficiency of our algorithm with a 20%time-consuming decrease than ever.

关键词： browser fingerprint AHP fingerprint tracking algorithm

Effect of N_(2)and Ar on CO_(2)conversion with segmented micro-plasma reactor

在线全文

学校读者我要写书评

暂无评论

Waste Disposal and Sustainable Energy 2021年第4期3卷 325-337页

作者： Baowei wang Xiaoyan Li xiaoxi wang Huijuan Su Bo Zhang Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Key Laboratory for Green Chemical Process of Ministry of Education School of Chemical Engineering and PharmacyWuhan Institute of TechnologyHubeiChina

The increase of CO_(2)concentration in the atmosphere has brought serious greenhouse effects and environmental problems,so it is urgent to solve the problem of excessive CO_(2)*** carbon capture,utilization,and storage technology refer to the use of CO_(2)as a C_(1)resource to generate new economic benefits in a new production *** this work,the influence of adding different proportions of N_(2)and Ar to the CO_(2)gas on the discharge characteristics and reaction performance was investigated with a newly designed dielectric barrier discharge(DBD)micro-plasma segmented electrode reactor and optical emission *** results indicated that the discharge current value increased when the added N_(2)content was less than 50%,and decreased when the N_(2)content exceeded 50%under the condition of constant input *** number and the current value of mixed gas micro-discharges showed a decreasing trend with the increase of Ar *** the discharge system,the dielectric capacitance(C_(d))and the gas gap capacitance(C_(g))showed opposite trends with the increase of N_(2)and Ar *** dielectric capacitance decreased and the gas gap capacitance increased as the N_(2)content increased,while the trend was just the opposite as the Ar content *** addition,adding a small amount of N_(2)and Ar was conducive to the conversion of CO_(2),but when the N_(2)and Ar content exceeded 50%,the amount of CO_(2)converted will be reduced.

关键词： Plasma Dielectric barrier discharge CO_(2)conversion Nitrogen Argon

Influences of four processing methods on main nutritional components of foxtail millet: A review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Grain & Oil Science and Technology 2022年第3期5卷 156-165页

作者： Tongshuai Yang Sen Ma Jingke Liu Binghua Sun xiaoxi wang College of Food Science and Engineering Henan University of TechnologyZhengzhou 450001China Institute of Biotechnology and Food Science Hebei Academy of Agriculture and Forestry SciencesShijiazhuang 050035China

Foxtail millet, originated from China and now cultivated worldwide, is a kind of high dietary fiber whole grain food, and has a high level of vitamins and proteins. Furthermore, foxtail millet has many positive effects on the adjuvant treatment of diabetes, cancer, and cardiovascular diseases because of the abundance in polyphenols. Nonetheless, foxtail millet has poor processing characteristics due to the absence of gluten, restricting the development of foxtail millet products. Studies have demonstrated that heat-moisture treatment, extrusion, superfine grinding, and microbial fermentation are promising methods to improve the processing qualities of foxtail millet. Heat-moisture treatment is helpful to increase the content of resistant starch but has less influence on other components, further reduce the GI value of foxtail millet. The extrusion has positive effects on improving the solubility of foxtail millet starch and increasing the contents of polyunsaturated fatty acid, linoleic and linolenic acids, and adverse effects on reducing the solubility of foxtail millet proteins and causing losses of nutrients due to Maillard reaction. Superfine grinding can reduce the particle size of foxtail millet to obtain a better mouthfeel of foxtail millet products. The superfine foxtail millet flour has better solubility, higher freeze-thaw stability, and lower gelatinization temperature. Microbial fermentation contributes positively to reducing the molecular weight and retrogradation value of foxtail millet starch, degrading rapidly digested starch, and improving the digestibility of foxtail millet protein. This paper briefly introduced the effects of different processing methods on foxtail millet nutrients, aiming to provide references for increasing the variety and improving the quality of foxtail millet products.

关键词： Foxtail millet Heat-moisture treatment Extrusion Superfine grinding Microbial fermentation Nutrients Health food

Neural and Behavioral Measures of Stress-induced Impairment in Error Awareness and Post-error Adjustment

在线全文

学校读者我要写书评

暂无评论

Neuroscience Bulletin 2024年第7期40卷 937-951页

作者： Na Hu Quanshan Long xiaoxi wang Quan Li Qing Li Antao Chen School of Preschool and Special Education Kunming UniversityKunming 650214China Faculty of Education Yunnan Normal UniversityKunming 650214China College of Teacher Education Qujing Normal UniversityQujing 655099China Key Laboratory of Cognition and Personality of Ministry of Education Faculty of PsychologySouthwest UniversityChongqing 400715China School of Psychology Shanghai University of SportShanghai 200438China

Exposure to stress negatively affects error processing,but the impact of stress on error awareness remains to be *** the present study,we examined the temporal dynamics of error awareness and post-error adjustment following acute ***-nine healthy men were randomly assigned to the control(n=26)or stress group(n=23).After stress induction,participants completed the error awareness task,and their brain activity was assessed by *** to the control group,the stress group demonstrated lower error awareness accuracy and smaller Pe(error positivity)and ΔPe amplitudes following aware error responses,which indicated impairment of error awareness following ***,the stress group had lower accuracy in post-aware error responses than in post-unaware error responses and the control group,which indicated poor post-error adjustment following *** results showed a stress effect on sequential stages of error *** induces impaired error identification,which further generates maladaptive post-error performance.

关键词： Acute stress Error awareness Post-error adjustment Error positivity

Deep reinforcement learning based worker selection for distributed machine learning enhanced edge intelligence in internet of vehicles

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Intelligent and Converged Networks 2020年第3期1卷 234-242页

作者： Junyu Dong Wenjun Wu Yang Gao xiaoxi wang Pengbo Si Faculty of Information Technology Beijing University of TechnologyBeijing 100022China

Nowadays,Edge Information System(EIS)has received a lot of *** EIS,Distributed Machine Learning(DML),which requires fewer computing resources,can implement many artificial intelligent applications ***,due to the dynamical network topology and the fluctuating transmission quality at the edge,work node selection affects the performance of DML a *** this paper,we focus on the Internet of Vehicles(IoV),one of the typical scenarios of EIS,and consider the DML-based High Definition(HD)mapping and intelligent driving decision model as the *** worker selection problem is modeled as a Markov Decision Process(MDP),maximizing the DML model aggregate performance related to the timeliness of the local model,the transmission quality of model parameters uploading,and the effective sensing area of the worker.A Deep Reinforcement Learning(DRL)based solution is proposed,called the Worker Selection based on Policy Gradient(PG-WS)*** policy mapping from the system state to the worker selection action is represented by a deep neural *** episodic simulations are built and the REINFORCE algorithm with baseline is used to train the policy *** show that the proposed PG-WS algorithm outperforms other comparation methods.

关键词： edge information system internet of vehicles distributed machine learning deep reinforcement learning worker selection

Novel heating technologies to improve fermentation efficiency and quality in wheat products:A short review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Grain & Oil Science and Technology 2021年第2期4卷 81-87页

作者： Zhen wang Jihong Huang Sen Ma xiaoxi wang Binghua Sun Fengcheng wang Li Li Qingdan Bao College of Food Science and Engineering Henan University of TechnologyZhengshou 450001China

Identifying novel processing methods is an important research direction in the field of food *** flour products have been popular all over the world for a long time because of their unique flavor and *** for yeast or sourdough,the accurate temperature control is essential for the fermentation *** novel heating methods have shown potential in the processing of fermented flour *** heating(MWH),radiofrequency heating(RFH),and ohmic heating(OH)are undoubtedly the most promising heating *** affects the fermentation time of the dough by affecting the water molecules in the dough,and may also improve the fermentation quality of wholewheat flour *** contributes to the control of harmful substances in the fermentation process and has shown potential for the production of sourdough *** has superiority in accurately controlling the temperature,enzymes,microorganisms,*** the fermentation process,and it is beneficial to shortening the fermentation *** have applied these heating methods with different properties to different *** article summarized the application and potential of these three novel heating methods in the production of fermented flour *** application scenarios and parameter settings of novel heating technologies in dough fermentation process need further *** is reasonable to believe that novel heating methods can become an important tool to improve the efficiency of dough fermentation and the quality of fermented dough in the future.

关键词： Microwave heating Radiofrequency heating Ohmic heating Novel heating technology of fermentation