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Journal of Systems Science and Systems Engineering 2024年第1期33卷 52-76页

作者： Shimin Sun Yongheng wang yawen wang Mengyu Mao School of Business Administration Northeastern UniversityShenyang110169China

CEO compensation stickiness represents an important indicator to measure the effectiveness of compensation *** study uses CEO career experience data and compensation stickiness data from Shanghai and Shenzhen A-share listed companies from 2015 to 2020 to investigate the compensation contracts’effectiveness of CEOs with diverse career *** findings are as follows:1)Compensation stickiness is more pronounced for CEOs with diverse career *** to the mechanism test,these CEOs with diverse career experiences can obtain compensation incentives by reducing corporate uncertainty perception and improving total factor *** approach leads to increased compensation stickiness and the effectiveness of compensation *** with diverse career experiences may receive excess compensation by raising agency costs,which intensifies compensation stickiness and weakens the effectiveness of compensation contracts.2)Compensation stickiness of CEOs with diverse career experiences is more significant in companies with lower investor protection,which brings about less effective compensation *** contrast,in companies with higher diversification,the compensation stickiness of CEOs with diverse career experiences is more significant,which delivers more effective compensation *** conclusions deepen the research of CEO compensation contracts and provide a helpful reference for CEO compensation management practices.

关键词： CEOs’diverse career experiences effectiveness of compensation contracts compensation stickiness agency problems incentive mechanisms

Cross-project software defect prediction based on multi-source data sets

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The Journal of China Universities of Posts and Telecommunications 2021年第4期28卷 75-87页

作者： Huang Junfu wang yawen Gong Yunzhan Jin Dahai School of Computer Science(National Pilot Software Engineering School) Beijing University of Posts and TelecommunicationsBeijing 100876China

Cross-project defect prediction(CPDP) uses one or more source projects to build a defect prediction model and applies the model to the target project. There is usually a big difference between the data distribution of the source project and the target project, which makes it difficult to construct an effective defect prediction model. In order to alleviate the problem of negative migration between the source project and the target project in CPDP, this paper proposes an integrated transfer adaptive boosting(TrAdaBoost) algorithm based on multi-source data sets(MSITrA). The algorithm uses an existing two-stage data filtering algorithm to obtain source project data related to the target project from multiple source items, and then uses the integrated TrAdaBoost algorithm proposed in the paper to build a CPDP model. The experimental results of Promise’s 15 public data sets show that: 1) The cross-project software defect prediction model proposed in this paper has better performance in all tested CPDP methods;2) In the within-project software defect prediction(WPDP) experiment, the proposed CPDP method has achieved the better experimental results than the tested WPDP method.

关键词： cross-project defect prediction multi-source transfer adaptive boosting ensemble learning

Self-templating synthesis of Pd_(4)S hollow nanospheres as electrocatalysts for oxygen reduction reaction

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Nano Research 2023年第2期16卷 2597-2603页

作者： Qian wang Donghui Zhao Jialong Yu Lijie Shi yawen wang Hongyu Chen Institute of Advanced Synthesis School of Chemistry and Molecular EngineeringNanjing Tech UniversityNanjing 211816China School of Science Westlake UniversityHangzhou 310023China

Hollow nanostructures with structural advantages have been widely exploited as catalysts in electrochemical ***,there are only limited strategies for constructing hollow Pd-based *** this work,Pd4S hollow nanospheres(Pd4S HNSs)are synthesized with a facile wet-chemical method via a self-templating *** Pd-L-cysteine solid nanospheres(SNSs)were firstly obtained by the coordination of L-cysteine with Pd^(2+),and then in situ converted to hollow nanospheres in the following reduction *** formation mechanism of the Pd4S HNSs was studied,and the size of the Pd4S HNSs can be readily adjusted by tuning the size of the *** hollow morphology would help the exposure of active sites and the prevention of aggregation during the catalytic *** a result,the Pd4S HNSs exhibit improved catalytic performances in the oxygen reduction reactions,with a half-wave potential of 0.913 V *** hydrogen electrode(RHE)and impressive stability in the accelerated durability test.

关键词： Pd4S hollow nanospheres self-templating electrocatalysis oxygen reduction reaction

Development of BINOL-Si complexes with large stokes shifts and their application as chemodosimeters for nerve agent

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Chinese Chemical Letters 2020年第11期31卷 2960-2964页

作者： Xu Feng yawen wang Wenlin Feng Yu Peng State Key Laboratory of Applied Organic Chemistry Lanzhou UniversityLanzhou 730000China School of Life Science and Engineering Southwest Jiaotong UniversityChengdu 610031China Department of Physics and Energy Chongqing University of TechnologyChongqing 400054China

Three fluorescent BINOL-Si complexes(FS1,FS2 and FS3)were rationally designed and synthesized to detect diethyl chlorophosphate(DCP),a mimic of lethal nerve *** three fluorescent probes showed green,yellow and orange fluorescence,***,the series of fluorescent probes has the characteristics of fast response time(4 s),low detection limit(0.0097 mmol/L),high sensitivity and naked eye *** important,a fiber optic sensor capable of detecting DCP vapor in real time was also prepared for the first time,the lowest detection limits(down to 4.4 ppb)were all lower than that of the IDLH(immediately dangerous to life or health)concentration of Sarin(7.0 ppb).

关键词： Nerve agent BINOL derivatives Si complex Fluorescent probe DCP

Manifold optimization assisted centralized hybrid precoding for cell-free massive MIMO systems

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Science China(Information Sciences) 2023年第11期66卷 305-306页

作者： Jie LUO Jiancun FAN yawen wang Jinbo ZHANG School of Information and Communications Engineering Xi'an Jiaotong University Science and Technology on Communication Networks Laboratory the 54th Research Institute of CETC

In the sixth generation(6G) wireless communication, cellfree massive multiple-input multiple-output(MIMO) has emerged as a promising technology due to it can improve macro diversity gain, enhance edge user service quality, and reduce path loss [1]. To suppress inter-user interference and improve spectral efficiency, the design of the precoding scheme is important.

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ATSSC:An Attack Tolerant System in Serverless Computing

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China Communications 2024年第6期21卷 192-205页

作者： Zhang Shuai Guo Yunfei Hu Hongchao Liu Wenyan wang yawen Information Engineering University Zhengzhou 450002China

Serverless computing is a promising paradigm in cloud computing that greatly simplifies cloud *** serverless computing,developers only provide function code to serverless platform,and these functions are invoked by its driven ***,security threats in serverless computing such as vulnerability-based security threats have become the pain point hindering its wide *** ideas in proactive defense such as redundancy,diversity and dynamic provide promising approaches to protect against ***,these security technologies are mostly applied to serverless platform based on“stacked”mode,as they are designed independent with serverless *** lack of security consideration in the initial design makes it especially challenging to achieve the all life cycle protection for serverless application with limited *** this paper,we present ATSSC,a proactive defense enabled attack tolerant serverless *** integrates the characteristic of redundancy,diversity and dynamic into serverless seamless to achieve high-level security and ***,ATSSC constructs multiple diverse function replicas to process the driven events and performs cross-validation to verify the *** order to create diverse function replicas,both software diversity and environment diversity are ***,a dynamic function refresh strategy is proposed to keep the clean state of serverless *** implement ATSSC based on Kubernetes and *** and experimental results demonstrate that ATSSC can effectively protect serverless computing against cyberattacks with acceptable costs.

关键词： active defense attack tolerant cloud computing security serverless computing

An Effective and Scalable VM Migration Strategy to Mitigate Cross-VM Side-Channel Attacks in Cloud

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China Communications 2019年第4期16卷 151-171页

作者： Chao Yang Yunfei Guo Hongchao Hu Wenyan Liu yawen wang National Digital Switching System Engineering & Technological Research Center

Co-residency of virtual machines(VMs) of different tenants on the same physical platform would possibly lead to cross-VM side-channel attacks in the cloud. While most of current countermeasures fail for real or immediate deployment due to their requirement for modification of virtualization structure, we adopt dynamic migration, an inherent mechanism of the cloud platform, as a general defense against this kind of threats. To this end, we first set up a unified practical information leakage model which shows the factors affecting side channels and describes the way they influence the damage due to side-channel attacks. Since migration is adopted to limit the time duration of co-residency, we envision this defense as an optimization problem by setting up an Integer Linear Programming(ILP) to calculate optimal migration strategy, which is intractable due to high computational complexity. Therefore, we approximate the ILP with a baseline genetic algorithm, which is further improved for its optimality and scalability. Experimental results show that our migration-based defense can not only provide excellent security guarantees and affordable performance cost in both theoretical simulation and practical cloud environment, but also achieve better optimality and scalability than previous countermeasures.

关键词： side-channel attacks information leakage virtual machine migration genetic algorithm

Capsaicin alleviates the hepatic clock gene disruption and gut microbiota dysbiosis in circadian rhythm disorder mouse model

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Food Science and Human Wellness 2024年第5期13卷 2947-2958页

作者： Bolin Lin Chi-Tang Ho yawen wang Jie Xiao Muwen Lu Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods College of Food ScienceSouth China Agricultural UniversityGuangzhou 510642China Department of Food Science Rutgers UniversityNew Brunswick 08901USA Department of Hematology The Hospital Affiliated to Qingdao UniversityQingdao 266000China

As the body’s internal clock,the circadian rhythm regulates the energy expenditure,appetite,and *** exists a close relationship between the host circadian rhythm and gut *** this work,a circadian disorder mouse model induced by constant darkness(CD)was constructed to investigate the regulating effects of capsaicin(CAP)on disturbances of metabolism homeostasis and gut microbiota in the respect of circadian rhythm-related *** results indicated that CAP reduced weight gain induced by circadian rhythm disorder in mice by inhibiting fat accumulation in liver and adipose *** rhythmic expressions of circadian clock genes and lipid-metabolism related genes in liver were also recovered by *** study using 16S rRNA sequencing revealed that CAP modulated the gut microbiota richness,diversity and composition,and restored diurnal oscillations of gut microbes at the phylum and family *** results indicated that CAP could alleviate CD-induced hepatic clock gene disruption and gut microbiota dysbiosis in mice,providing theoretical basis for CAP to be used as a muti-functional ingredient with great healthpromoting effects.

关键词： Capsaicin Circadian rhythm Hepatic clock gene Gut microbiota Lipid dysregulation

Citric acid-assisted synthesis of nano-Ag/BiO Br with enhanced photocatalytic activity

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Science China Chemistry 2015年第3期58卷 457-466页

作者： Xiuli Li Xiaoming Mao Xiaochao Zhang Yunfang wang yawen wang Hui Zhang Xiaogang Hao Caimei Fan College of Chemistry and Chemical Engineering Taiyuan University of Technology Particle Technology Research Centre Department of Chemical and Biochemical Engineering the University of Western Ontario

In this study, silver nano-particles have been anchored in the surface of Bi OBr photocatalysts by a citric acid-assisted photoreduction method. The citric acid was served as a chelating and reductive agent for the preparation of Ag-decorated Bi OBr photocatalysts(named as Ag/Bi OBr-2). The as-synthesized samples were characterized by X-ray diffraction(XRD), X-ray photoelectron spectroscopy(XPS), scanning electron microscopy(SEM), transmission electron microscopy(TEM), and UV-Vis diffuse reflection spectroscopy(DRS). The Ag/Bi OBr-2 photocatalyst exhibited excellent and stable photocatalytic activities on MO and phenol degradation under simulated sunlight irradiation. The enhanced photocatalytic activity could be ascribed to the smaller size, rough surface, and the surface plasma resonance(SPR) effect of Ag. Also, the Schottky junction, between the surface of the Bi OBr and silver nanoparticles, accelerated the efficient transfer and separation of photoinduced electron-hole pairs and promoted the photocatalytic performance. The active species tests indicated that the superoxide radical(·O-2) was responsible for the enhanced photocatalytic performance of Ag/Bi OBr-2. Finally, a possible photocatalytic mechanism was proposed.

关键词： Ag/Bi OBr citric acid photoreduction photocatalysis

The MtRGF6 Peptide Differentially Regulates Root Development and Symbiotic Nodulation of Medicago truncatula and Lotus japonicus

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Phyton-International Journal of Experimental Botany 2024年第6期93卷 1237-1248页

作者： Junhui Yan yawen wang Qiong Li Yu Zhou Xu wang Li Luo School of Life Sciences Shanghai Key Laboratory of Bio-Energy CropsShanghai UniversityShanghai200444China College of Life Science State Key Laboratory of Tea Plant Biology and UtilizationAnhui Agricultural UniversityHefei230036China

Rhizobia induces nitrogen-ﬁxing nodules in legumes used in agricultural production,providing a direct source of combined nitrogen to leguminous *** peptides,such as CLAVATA3/EMBRYO SURROUNDING REGION peptides(CLE),are known to regulate the formation and development of nitrogen-ﬁxing nodules in *** meristem growth factor(RGF)peptides from Medicago truncatula not only regulate root develop-ment but also modulate nodulation symbiosis with Sinorhizobium ***,the impact of RGF peptides from one leguminous species on the others remains *** this study,we investigate the effects of the RGF family peptide MtRGF6p from *** on nodulation symbiosis and root development in Lotus *** MtRGF6 gene is predominantly expressed in the root nodules of *** and shows low identity with RGF homologous genes from *** gene promoter is active in the primordia of root nodules and lat-eral roots,as well as in young nodules and roots,and the meristem,infection,and nitrogen-ﬁxing regions of the mature *** synthesized MtRGF6p promoted primary root growth in *** but sup-pressed the growth of *** primary *** peptide negatively affected the initiation of nodule primor-dia,the formation of infection threads,and nodulation in both legumes,with a low dosage showing effects on *** compared to *** results suggest that the MtRGF6 peptide from *** may serve as an inter-species signal affecting the root organ development of ***.

关键词： Peptide RGF legume symbiotic nodulation lateral root