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Coverage Probability Analysis for Full-Duplex Relay Aided Device-to-Device Communications Networks

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China Communications 2016年第11期13卷 60-67页

作者： Bin Zhong Jiajia Zhang qian zeng Xiaoming Dai School of Information and Electrical Engineering Hunan University of Science and Technology Beijing Engineering and Technology Research Center for Convergence Networks and Ubiquitous Services University of Science and Technology Beijing Business School Xiangtan University

The coverage probability of both the cellular users and the Device-to-Device(D2D) users are analyzed. We assume that the cellular users are able to communication with the Base Station(BS) either by relying on the assistance of Full-Duplex(FD) mode relays or via direct user-to-BS links with high-enough Signal-to-Interference-plus-Noise-Ratio(SINR). Note that the FD-mode devices are capable of simultaneously operating in two modes,i.e. the D2D mode and the cooperative relay mode,with the sum power consumption at these devices kept constant. The closedform expressions for coverage probability of both tier users are derived. After that,numerical analyses are provided,showing that the coverage probability of the both the cellular and the D2D users can be substantially influenced by a variety of parameters,including the power allocation factor of the relays,the density of users,and the self-interference imposed on the FD mode relays,etc. Furthermore,in the D2D enabled networks,it is shown that the FD relay aided transmission is beneficial to enhancing the coverage probability of the cellular users if the target SINR is lower than 5 d B.

关键词： cooperative communication coverage probability Full-duplex device-to-device

Effects of cooperative nursing and patient education on postoperative infection and self-efficacy in gastrointestinal tumors

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World Journal of Clinical Cases 2021年第7期9卷 1610-1618页

作者： Li Qiao Shu-qian zeng Ning Zhang Department of Gastrointestinal Surgery Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022Hubei ProvinceChina

BACKGROUND Gastrointestinal tumors have a high incidence *** application value of the cooperative nursing care system of medical care has received widespread attention in recent ***,there are few studies on the value of the joint application of collaborative nursing care and self-efficacy *** To explore the effect of cooperative nursing care management/self-efficacy education on postoperative infection and self-efficacy in gastrointestinal tumor surgery *** A total of 102 patients with gastrointestinal tumors treated in our hospital from October 2018 to February 2020 were selected and divided into a conventional group(n=51)and a combined group(n=51)according to the nursing *** routine group adopted routine nursing,and the joint group adopted the medical care cooperative responsibility system nursing management combined with selfefficacy *** self-efficacy scores,coping style scores,self-experience burden scores,and postoperative complication rates of the two groups before and after intervention were *** After intervention,the daily life behavior management,cognitive symptom management,and disease management scores of the two groups were higher than those before the intervention,and those of the combined group were higher than those of the conventional group(all P=0.000).After the intervention,the positive response scores of the two groups were higher than those before the intervention,the negative response scores were lower than those before the intervention,and the combined group was better than the conventional group(all P=0.000).After the intervention,the two groups’emotional,economic,and physical factor scores were lower than those before the intervention,and the combined group was lower than the conventional group(all P=0.000).The incidence of infection in the combined group(1.96%)was lower than that in the conventional group(15.69%)(P=0.036).CONCLUSION Cooperative nursing care management and self-

关键词： Medical care cooperative responsibility system nursing management Selfefficacy education Gastrointestinal neoplasms Postoperative infection Self-efficacy Nursing

Study on the Effects and Influencing Factors of the Economic Spatial Correlation Network in the Yellow River Basin

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Journal of Systems Science and Information 2024年第5期12卷 690-708页

作者： Renquan HUANG qian zeng Yinong SI School of Economy and Finance Xi’an International Studies UniversityXi’an 710128China

This paper constructs high-quality development assessment indicators based on the perspective ternary system,including economic development,technological innovation,and ecological environment *** on the data of 51 regions in the Yellow River Basin from 2010 to 2021,the economic spatial correlation relationships were *** using social network analysis and the QAP method,the economic spatial correlation characteristics and the influencing factors are *** results show that:1)The regions exhibit significant variations in comprehensive quality and economic ***,Xi’an,Jinan,Luoyang,and Zibo are the top five *** with high comprehensive quality tend to have stronger economic *** economic links show an obvious“upstream-midstream-downstream”three-tier structure.2)Regions such as Xi’an,Zhengzhou,Jinan,Taiyuan,Ordos,Luoyang,Baotou etc.,exhibit high degree and betweenness centrality,and low closeness *** are the core regions of high-quality development in the Yellow River *** I is the core block and spills to Block II,Block III,and Block *** II plays an essential bridge role to Block III.3)The factors of spatial adjacency,fixed asset investment,employment,informatization,and innovation are key to spatial correlation,and explain 40.5%of the spatial correlation.

关键词： Yellow River Basin spatial correlation social network analysis QAP regression

Artificial Neural Network and Full Factorial Design Assisted AT-MRAM on Fe Oxides, Organic Materials, and Fe/Mn Oxides in Surficial Sediments

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Chemical Research in Chinese Universities 2011年第6期27卷 944-948页

作者： GAO qian WANG Zhi-zeng WANG qian LI Shan-shan LI Yu Research Academy of Energy and Environmental Studies North China Electric Power University Beijing 102206 P. R. China

Artificial neural network（ANN） and full factorial design assisted atrazine（AT） multiple regression adsorption model（AT-MRAM） were developed to analyze the adsorption capability of the main components in the surficial sediments（SSs）. Artificial neural network was used to build a model（the determination coefficient square r2 is 0.9977） to describe the process of atrazine adsorption onto SSs, and then to predict responses of the full factorial design. Based on the results of the full factorial design, the interactions of the main components in SSs on AT adsorption were investigated through the analysis of variance（ANOVA）, F-test and t-test. The adsorption capability of the main components in SSs for AT was calculated via a multiple regression adsorption model（MRAM）. The results show that the greatest contribution to the adsorption of AT on a molar basis was attributed to Fe/Mn（–1.993 μmol/mol）. Organic materials（OMs） and Fe oxides in SSs are the important adsorption sites for AT, and the adsorption capabilities are 1.944 and 0.418 μmol/mol, respectively. The interaction among the non-residual components（Fe, Mn oxides and OMs） in SSs interferes in the adsorption of AT that shouldn’t be neglected, revealing the significant contribution of the interaction among non-residual components to controlling the behavior of AT in aquatic environments.

关键词： Back propagation(BP) artificial neural network Full factorial design Fe/Mn oxide Organic material Atrazine Interaction

Efficient Knoevenagel condensation catalyzed by imidazole-based halogenfree deep eutectic solvent at room temperature

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Green Energy & Environment 2020年第2期5卷 124-129页

作者： Hao Qin Yishan Zhou qian zeng Hongye Cheng Lifang Chen Bingjian Zhang Zhiwen Qi Max Planck Partner Group at the State Key Laboratory of Chemical Engineering School of Chemical EngineeringEast China University of Science and Technology130 Meilong RoadShanghai200237China School of Chemical Engineering and Technology Sun Yat-Sen University135 Xingang West RoadGuangzhou510275China

For the first time,we employed the halogen-free deep eutectic solvent(DES)into the Knoevenagel condensation between aromatic aldehydes and active methylene compounds at room *** DESs[3Im:PTSA]and[4Im:PTSA]were prepared by imidazole(Im)and p-tol-uenesulfonic acid(PTSA),which were experimentally screened from a series of organic acids with imidazole.a,b-Unsaturated carbonyl compounds were obtained in good to excellent yields under solvent-free conditions with fast reaction *** two DESs can be reused for multiple times with no loss of catalytic activity.

关键词： Halogen-free DES Knoevenagel condensation Room temperature Recyclable catalyst Solvent-free condition

Network pharmacology-based analysis of effective components and mechanism of Rhizoma coptidis in treating diabetes

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Asian Pacific Journal of Tropical Biomedicine 2021年第1期11卷 29-39页

作者： qian-qian zeng Jia-Wei Cai Yue Xu Lin Li Qiu Chen Ren-Song Yue Hospital of Chengdu University of Traditional Chinese Medicine Chengdu 610072P.R.China School of Pharmacy Chengdu University of Traditional Chinese MedicineChengdu611130PR China

Objective:To identify the active ingredients,potential targets,and mechanism of Rhizoma coptidis by bioinformatics method,and to explore the hypoglycemic effect of Rhizoma coptidis by in vitro ***:The chemical components of Rhizoma coptidis were collected through database search,and oral bioavailability and drug-likeness were used for preliminary *** targets of Rhizoma coptidis and diabetes-related targets were collected by database retrieval and reverse docking techniques,and the biological process of cross-set proteins was *** inhibitory effects of Rhizoma coptidis onα-glucosidase,α-amylase activity,and advanced glycation end products(AGEs)were determined via in vitro *** addition,the effects of Rhizoma coptidis on preadipocyte differentiation,absorption of glucose by adipocytes,and the level of intracellular triglyceride were investigated using the adipocyte differentiation ***:There were 11 potentially active ingredients in Rhizoma ***-6,caspase-3,epidermal growth factor receptor(EGFR),MYC,and estrogen receptor 1 were considered as the key *** bioinformatics analysis showed that Rhizoma coptidis played an antidiabetic role mainly via biological processes and signaling pathways including hormone receptor activity,glutathione binding,steroid binding,*** vitro experiments showed that the extract of Rhizoma coptidis inhibited the activities ofα-glucosidase andα-amylase,and the generation of AGEs;meanwhile,the extract promoted the absorption of glucose by *** addition,the extract of Rhizoma coptidis decreased triglyceride ***:Our network pharmacology and in vitro experiments demonstrate the anti-diabetic effects and possible underlying mechanisms of Rhizoma coptidis extract.

关键词： Rhizoma coptidis Diabetes Network pharmacology Target Traditional Chinese medicine

Effect of water on extractive desulfurization of fuel oils using ionic liquids： A COSMO-RS and experimental study

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Chinese Journal of Chemical Engineering 2017年第2期25卷 159-165页

作者： Zhen Song Dian Yu qian zeng Jingjing Zhang Hongye Cheng Lifang Chen Zhiwen Qi Max Planck Partner Group at the State Key Laboratory of Chemical Engineering School of Chemical Engineering East Chino University of Sdence and Technology Shanghai 200237 China

When evaluating ionic liquids （ILs） for extractive desulfurization （EDS） of fuel oils, the inevitable presence of water in the system may have a significant and in many cases strongly negative effect. However, few studies have considered this particular issue and a promoted water effect on EDS is scarcely reported. In this work, COSMO-RS was firstly employed to calculate the capacity and selectivity for EDS of various IL/H20 mixtures, which cover different IL characters and a wide water concentration range. Experiments were then conducted with a representative IL [C4MIM]IH2P04], whose stable and even promoted extraction performance with a small amount of water was suggested by COSMO-RS. Through analyses of the desulfurization ratio, the cross- solubility and the water content in the desulfurized fuel, the promoted effect of water within a certain range （〈 10 wt%） was experimentally demonstrated. Moreover, such effect of water was explained combining the viscosity, the solvent-solute interactions and the COSMO-RS based analysis.

关键词： Extractive desulfudzationIonic liquidsCOSMO-RSWater content effect

In situ coagulation-electrochemical oxidation of leachate concentrate:A key role of cathodes

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Environmental Science and Ecotechnology 2023年第4期16卷 168-176页

作者： Huankai Li qian zeng Feixiang Zan Sen Lin Tianwei Hao Department of Civil and Environmental Engineering Faculty of Science and TechnologyUniversity of MacaoMacaoChina Department of Civil and Environmental Engineering The Hong Kong University of Science and TechnologyClear Water BayHong KongChina School of Environmental Science and Engineering Low-Carbon Water Environment Technology Center(HUST-SUKE)Huazhong University of Science and TechnologyWuhanChina

To efficiently remove organic and inorganic pollutants from leachate concentrate,an in situ coagulation-electrochemical oxidation(CO-EO)system was proposed using Ti/Ti_(4)O_(7)anode and Al cathode,coupling the“super-Faradaic”dissolution of *** system was evaluated in terms of the removal efficiencies of organics,nutrients,and metals,and the underlying cathodic mechanisms were investigated compared with the Ti/RuO_(2)-IrO_(2)and graphite cathode *** a 3-h treatment,the Al-cathode system removed 89.0%of COD and 36.3%of total nitrogen(TN).The TN removal was primarily ascribed to the oxidation of both ammonia and organic-N to N_(2).In comparison,the Al-cathode system achieved 3-10-fold total phosphorus(TP)(62.6%)and metal removals(>80%)than Ti/RuO_(2)-IrO_(2)and graphite *** increased removals of TP and metals were ascribed to the in situ coagulation of Al(OH)_(3),hydroxide precipitation,and *** the reduced scaling on the Al cathode surface,the formation of Al^(3+)and electrified Al(OH)_(3)lessened the requirement for cathode cleaning and increased the bulk conductivity,resulting in increased instantaneous current production(38.9%)and operating cost efficiencies(48.3 kWh kg_(COD)^(−1)).The present study indicated that the in situ CO-EO process could be potentially used for treating persistent wastewater containing high levels of organic and inorganic ions.

关键词： Leachate concentrate Electrochemical process in situ coagulation treatment Cathode material Removal mechanism

Characterization and Expression Analysis of Four Glycine-Rich RNA-Binding Proteins Involved in Osmotic Response in Tobacco (Nicotiana tabacum cv. Xanthi)

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Agricultural Sciences in China 2010年第11期9卷 1577-1587页

作者： CHEN Xuan zeng qian-chun LU Xiu-ping YU Di-qiu LI Wen-zheng Industrial Crop Research Institute Yunnan Academy of Agricultural Sciences Kunming 650205 P.R. China College of Agronomy and Biotechnology Yunnan Agricultural University Kunming 650201 P.R. China Yunnan Tobacco Research Institute Yuxi 653100 P.R.China Xishuangbanna Tropical Botanic Garden Chinese Academy of Sciences Kunming 650223 P.R. China

Plants have developed many signals and specific genes＇ regulations at both transcriptional and post-transcriptional levels in order to tolerate and adapt to various environmental stresses. RNA-binding proteins （RBPs） play crucial roles in the post- transcriptional regulation via mRNA splicing, polyadenylation, sequence editing, transport, mRNA stability, mRNA localization, and translation. In this paper, four cDNAs of glycine-rich RNA-binding proteins （GR-RBPs）, named NtRGP-la, -lb, -2, and -3, were isolated from Nicotiana tabacum by RT-PCR analysis, and special emphases were given to the sequences alignment, phylogenetic analysis and gene expression. Sequences alignment revealed minor difference of cDNA sequences, but no difference of deduced proteins between N. sylvestris and N. tabacum. Phylogenetic alignment revealed that four cDNAs in tobacco were clustered into two different groups. NtRGP-2 and -3 were evolutionarily closest to Arabidopsis GR-RBPs genes and related to animal GR-RBPs genes, while NtRGP-la and -lb were closest to Gramineae GR-RBPs genes. The expression analyses of these four NtRGPs in response to different abiotic stresses revealed the similar expression pattern. Moreover, the four NtRGPs, especially NtRGP-la and NtRGP-3, were strongly induced by stresses including water, wound, cold, and high temperature, weakly induced by PEG, drought and SA, while reduced by NaC1 and unaffected by ABA treatment. The fact that all of these abiotic stresses included in our experiments affected the water balance and resulted in osmotic stress on cellular level, suggests that NtRGPs in tobacco should be a family of crucial osmosis-related proteins, and may play a key role in signal transduction with ABA-independent pathway under abiotic stresses.

关键词： glycine-rich RNA-binding proteins abiotic stresses phylogenesis expression pattern osmotic stress