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Supplying active lithium to single-crystal Li(Ni_(0.90)Co_(0.05)Mn_(0.05))_(0.98)Ta_(0.02)O_(2) with Li_(2)MnO_(3) coating served as cathode for Li-ion batteries

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Particuology 2024年第12期95卷 303-318页

作者： Li dong Xiaodong guan Yang Zhou Shibao Tang Feng Chen School of Materials Science and Engineering Suzhou University of Science and TechnologySuzhou215009China Suzhou Huayi New Energy Technology Co. Ltd.Suzhou215433China Xingna Energy(Suzhou)Co. Ltd.Suzhou215000China Chenguang High Performance Fluorine Material Innovation Center in Sichuan University of Science and Engineering Zigong643000China

Ni-rich layered oxide with Ni molar content larger than 90%was regarded as an extremely promising candidate for cathode material applied in lithium-ion batteries owing to the significant discharging capacity and low ***,rigorous cycling attenuation resulted from the crystal structure collapse and unstable particles interface deeply restrained the commercial *** the work,LiNi_(0.90)Co_(0.05)Mn_(0.05)O_(2) was modified by Ta5+doping and Li_(2)MnO_(3) covering,which was aimed to enhance the structure stability,defend the electrolyte attacking and promote Li+migration during *** material characterization demonstrated the cathodes after Ta5+doping delivered the larger cell lattice parameters and higher cation ordering,which was helpful to improve the rate property and discharge capacity at low *** Li_(2)MnO_(3) layer was tightly adhered on the outside of LiNi_(0.90)Co_(0.05)Mn_(0.05)O_(2),which could effectively relieve the electrolyte attacking and sustain the particle morphology *** a result,2 wt%Li_(2)MnO_(3) coated Li(Ni_(0.90)Co_(0.05)Mn_(0.05))_(0.98)Ta_(0.02)O_(2) exhibited the outstanding discharge capacity of 150.2 mAh g^(−1) at 10.0 large current density and 140.6 mAh g^(−1) at−30℃ as well as the remarkable capacity retention of 93.1%after 300 ***,the pouch full batteries obtained by 2 wt%Li_(2)MnO_(3) coated Li(Ni_(0.90)Co_(0.05)Mn_(0.05))_(0.98)Ta_(0.02)O_(2) also showed the more stable storage capability,cyclic property in comparison with bare LiNi_(0.90)Co_(0.05)Mn_(0.05)O_(2).

关键词： LiNi_(0.90)Co_(0.05)Mn_(0.05)O_(2) Li supplement Li_(2)MnO_(3)coating High chemical valence state Ta5+doping Enhanced safety and electrochemical property

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A Novel Parameter-Optimized Recurrent Attention Network for Pipeline Leakage Detection

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IEEE/CAA Journal of Automatica Sinica 2023年第4期10卷 1064-1076页

作者： Tong Sun Chuang Wang Hongli dong Yina Zhou Chuang guan The authors are with the Sanya Offshore Oil&Gas Research Institute Northeast Petroleum UniversitySanya 572024 Artificial Intelligence Energy Research Institute Northeast Petroleum University Heilongjiang Provincial Key Laboratory of Networking and Intelligent Control Northeast Petroleum UniversityDaqing 163318China

Accurate detection of pipeline leakage is essential to maintain the safety of pipeline ***,deep learning(DL)has emerged as a promising tool for pipeline leakage detection(PLD).However,most existing DL methods have difficulty in achieving good performance in identifying leakage types due to the complex time dynamics of pipeline *** the other hand,the initial parameter selection in the detection model is generally random,which may lead to unstable recognition *** this reason,a hybrid DL framework referred to as parameter-optimized recurrent attention network(PRAN)is presented in this paper to improve the accuracy of ***,a parameter-optimized long short-term memory(LSTM)network is introduced to extract effective and robust features,which exploits a particle swarm optimization(PSO)algorithm with cross-entropy fitness function to search for globally optimal *** this framework,the learning representation capability of the model is improved and the convergence rate is ***,an anomaly-attention mechanism(AM)is proposed to discover class discriminative information by weighting the hidden states,which contributes to amplifying the normalabnormal distinguishable discrepancy,further improving the accuracy of *** that,the proposed PRAN not only implements the adaptive optimization of network parameters,but also enlarges the contribution of normal-abnormal discrepancy,thereby overcoming the drawbacks of instability and poor ***,the experimental results demonstrate the effectiveness and superiority of the proposed PRAN for PLD.

关键词： attention mechanism(AM) long shortterm memory(LSTM) parameter-optimized recurrent attention network(PRAN) particle swarm optimization(PSO) pipeline leakage detection(PLD)

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Inhibitory gamma-aminobutyric acidergic neurons in the anterior cingulate cortex participate in the comorbidity of pain and emotion

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Neural Regeneration Research 2025年第10期20卷 2838-2854页

作者： Lu guan Mengting Qiu Na Li Zhengxiang Zhou Ru Ye Liyan Zhong Yashuang Xu Junhui Ren Yi Liang Xiaomei Shao Jianqiao Fang Junfan Fang Junying Du Department of Neurobiology and Acupuncture Research Third School of Clinical MedicineZhejiang Chinese Medical UniversityHangzhouZhejiang ProvinceChina Key Laboratory for Research of Acupuncture Treatment and Transformation of Emotional Diseases Third School of Clinical MedicineZhejiang Chinese Medical UniversityHangzhouZhejiang ProvinceChina Fuchun Community Health Service Center of Fuyang District HangzhouZhejiang ProvinceChina

Pain is often comorbid with emotional disorders such as anxiety and *** of the anterior cingulate cortex has been implicated in pain and pain-related negative emotions that arise from impairments in inhibitory gamma-aminobutyric acid *** review primarily aims to outline the main circuitry(including the input and output connectivity)of the anterior cingulate cortex and classification and functions of different gamma-aminobutyric acidergic neurons;it also describes the neurotransmitters/neuromodulators affecting these neurons,their intercommunication with other neurons,and their importance in mental comorbidities associated with chronic pain *** understanding on their role in pain-related mental comorbidities may facilitate the development of more effective treatments for these ***,the mechanisms that regulate gamma-aminobutyric acidergic systems remain *** is also unclear as to whether the mechanisms are presynaptic or *** exploration of the complexities of this system may reveal new pathways for research and drug development.

关键词： anterior cingulate cortex anxiety chronic pain circuit communication comorbidity depression gamma-aminobutyric acidergic neurons parvalbumin neurons synaptic transmission

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Diesel molecular composition and blending modeling based on SUBEM framework

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Petroleum Science 2022年第2期19卷 839-847页

作者： Yue-Ming guan dong guan Cheng Zhang Sheng-Hua Yuan guang-Qing Cai Lin-Zhou Zhang State Key Laboratory of Heavy Oil Processing Petroleum Molecular Engineering Center(PMEC)China University of PetroleumBeijing102249China SINOPEC Dalian Research Institute of Petroleum and Petrochemicals SINOPECDalian116045LiaoningChina

Diesel molecular compositional model has important application for diesel quality prediction,blending,and molecular-level process model *** this paper,different types of diesel molecular compositional and blending models were constructed based on the SU-BEM *** than 1500 representative molecules were selected to form the molecular structure *** probability density functions(PDFs)combination was determined by experimental data and experience.A quadratic optimization strategy combining genetic algorithm with local optimization algorithm was adopted to improve the accuracy of the compositional *** model results show good agreement with the experimental *** diesel blending model was constructed at the molecular-level based on the above diesel compositional *** properties of the blending model accord with the experimental *** is proved that the compositional models and blending model constructed have high accuracy and strong prediction capability,and are applicable to the industrial process.

关键词： Molecular compositional model Molecular blending model SU-BEM Framework Diesel

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Properties ofπ-skew Graphs with Applications

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Acta Mathematica Sinica,English Series 2021年第4期37卷 641-656页

作者： Zhang dong OUYANG Feng Ming dong Rui Xue ZHANG Eng guan TAY School of Mathematics and Computational Sciences Hu’nan First Normal UniversityChangsha 410205P.R.China Mathematics and Mathematics Education National Institute of EducationNanyang Technological University637616Singapore

The skewness of a graph G,denoted by sk(G),is the minimum number of edges in G whose removal results in a planar *** is an important parameter that measures how close a graph is to planarity,and it is complementary,and computationally equivalent,to the Maximum Planar Subgraph *** any connected graph G on p vertices and q edges with girth g,one can easily verify that sk(G)≥π(G),whereπ(G)=[q−g/g−2(p−2)],and the graph G is said to beπ-skew if equality *** concept ofπ-skew was first proposed by *** and ***π-skew graphs with girth 3 are precisely the graphs that contain a triangulation as a spanning *** purpose of this paper is to explore the properties ofπ-skew *** families ofπ-skew graphs are obtained by applying these properties,including join of two graphs,complete multipartite graphs and Cartesian product of two *** also discuss the threshold for the existence of a spanning *** other results some sufficient conditions regarding the regularity and size of a graph,which ensure a spanning triangulation,are given.

关键词： Skewness of graph crossing number of graph Cartesian product join product π-skew

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EXPERIMENTAL STUDY ON SOIL MOISTURE USING DUAL-FREQUENCY MICROWAVE RADIOMETER

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Chinese Geographical Science 2006年第1期16卷 83-86页

作者： guan Zhi ZHAO Kai SONG dong-sheng Nartheast Institute of Geography and Agroecology Chinese Academy of Sciences Changchun 130012 P.R.China Graduate School of Chinese Academy of Sciences Beijing 100049 P.R.China

An experiment of measuring soil moisture was carried out by using dual-frequency microwave radiometer designed by the authors. The measured data were analyzed by using statistical regression method and the empirical regression model of retrieving soil moisture in L-band and C-band was developed. The soil moisture in a rainfall event was retrieved using the experiential regression model, which is consistent well with the field sampling value. The results show that when soil moisture is lower than 75%, the brightness temperature is linear with soil moisture. However, when soil moisture is higher than 75%, the brightness temperature is not linear with soil moisture, so it is difficult for microwave radiometer to measure the changes of soil moisture. The experiment verifies the effectiveness and feasibility of microwave remote sensing soil moisture. Although this method for linear regression based on the data measured with the radiometer is simple, and has strong adaptability, generally it has only local application value, and lacks universal applicability for different areas and different conditions.

关键词： soil moisture dual-frequency microwave radiometer brightness temperature

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Effects of Nitric Oxide on the Quality and Pectin Metabolism of Yali Pears During Cold Storage

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Agricultural Sciences in China 2011年第7期10卷 1125-1133页

作者： LIU Li-qin dong Yu guan Jun-feng College of Life Science Hebei Normal University Shijiazhuang 050016 P.R.China Institute of Genetics and Physiology Hebei Academy of Agricultural and Forestry Sciences Shijiazhuang 050051 P.R.China

The effect of fumigation with 10, 20, and 30 μL L-1 nitric oxide （NO） was investigated to study the effects of NO on the quality of Yali pears during cold storage. The ethylene production, composition of cell walls, and cell-wall-modifying enzyme activities were measured on fruits which were fumigated with NO （20 μL L-1）. The results showed that NO not only reduced the peak value of ethylene production rate, the soluble sugar, soluble solid content, maintained higher firmness, starch, and NO content, but also retarded the degradation of covalent soluble pectin, accumulation of ionic soluble pectin and water soluble pectin. Moreover, NO fumigation decreased the activities of polygalacturonase （PG） and b-galactosidase（b-Gal） and delayed the peak of PG activity of fruits. Therefore, it indicated that NO fumigation could delay the softening and ripening of Yali pears.

关键词： pear nitric oxide cell wall material fruit softening

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Effects of 1-Methylcyclopropene on NO Content,NOS Activity,and H_2O_2 Content in Postharvest Suli Pears

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Agricultural Sciences in China 2011年第5期10卷 797-804页

作者： dong Yu LIU Li-qin guan Jun-feng Institute of Genetics and Physiology Hebei Academy of Agricultural and Forestry Sciences Shijiazhuang 050051 P.R.China College of Life Science Hebei Normal University Shijiazhuang 050016 P.R.China

Studies were conducted over the effects of 1-methylcycolpropene （1-MCP） treatment on postharvest life of Suli pears （Pyrus bretschneideri Rehd.） stored at room and cold temperatures on nitric oxide （NO）,nitric oxide synthase （NOS） activity,and hydrogen dioxide （H2O2）.Results showed that the 1-MCP treatment had little effect on total soluble solids （TSS） at both room and cold temperatures.1-MCP delayed softening of Suli pear fruits,decreased respiratory rate and H2O2 accumulation,and increased NO and NOS activity at room temperature storage,while the effect of cold temperature storage was relatively *** was a significant positive correlation between NOS activity and NO *** is concluded that 1-MCP had effects on endogenous NO content and accumulation of ***,H2O2 acting as a signaling molecule via regulating NO level affects the ripening and senescence of Suli pears.

关键词： pear 1-MCP NO NOS H2O2

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Selectivity Estimation for String Predicates Based on Modified Pruned Count-Suffix Tree

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Chinese Journal of Electronics 2015年第1期24卷 76-82页

作者： LI dong ZHANG Qixu LIANG Xiaochong guan Jida XU Yang School of Software Engineering South China University of Technology

The accuracy of predicates selectivity estimation is one of the important factors affecting query optimization performance. State-of-art selectivity estimation algorithms for string predicates based on Pruned countsuffix tree(PST) often suffer severe underestimating and overestimating problems, thus their average relative errors are not good. We analyze the main causes of the underestimating and overestimating prob-lems, propose a novel Restricted pruned count-suffix tree(RPST) and a new pruning strategy. Based on these, we present the EKVI algorithm and the EMO algorithm which are extended from the KVI algorithm and the MO algorithm respectively. The experiments compare the EKVI algorithm and the EMO algorithm with the traditional KVI algorithm and the MO algorithm, and the results show that the average relative errors of our selectivity estimation algorithms are significantly better than the traditional selectivity estimation algorithms. The EMO algorithm is the best among these algorithms from the overall view.

关键词： Query optimization Selectivity estimation String predicate Oruned count-suffix tree.

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Enhancing insights into Global Cancer Statistics 2022: implications for cancer control

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Science China Life Sciences 2025年第1期 294-296页

作者： Jingtong Xu Runtian Wang Xiaoxiang guan Department of Oncology the First Affiliated Hospital of Nanjing Medical University Jiangsu Key Lab of Cancer Biomarkers Prevention and TreatmentCollaborative Innovation Center for Personalized Cancer MedicineNanjing Medical University

Globally, there has been a marked escalation in tumor morbidity and mortality,cementing tumors as the predominant cause of death in numerous *** the current tumor burden across various regions is imperative to discern potential risk factors and formulate efficacious strategies for tumor ***, the International Agency for Research on Cancer(IARC) provided a status report on the global tumor burden,estimating the incidence and mortality of 36 cancers in 185 countries(Bray et al.,2024).

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