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A confinement strategy to in-situ prepare a peanut-like N-doped, C-wrapped TiO_(2) electrode with an enhanced desalination capacity and rate for capacitive deionization

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Nano Research 2021年第3期14卷 684-691页

作者： Mingxing Liang Xueting bai Fei yu Jie Ma College of Marine Ecology and Environment Shanghai Ocean UniversityShanghai201306China State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai200092China Research Center for Environmental Functional Materials College of Environmental Science and EngineeringTongji University1239 Siping RoadShanghai200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092China

Capacitive deionization(CDI)technology has been considered a promising desalination technique,especially for brackish water,because of its relatively low energy consumption,facile operation,and easy regeneration of ***,the desalination capacity,cost,fabrication method,electrochemical stability,and environmental unfriendliness of the electrodes have restricted the practical application of the CDI ***,we reported the one-step in situ preparation of nitrogen-doped and carbon-decorated MXene-derived TiO_(2)(termed N-TiO_(2−x)/C)through the confinement-growth *** small particle size(∼25 nm)and uniform distribution of a peanut-like N-TiO_(2−x)/C material could be ascribed to the confined growth space created by the nanoporous structure of melamine *** defects produced by N doping provide an enhanced electrical conductivity and more adsorption sites,while wrapping with a carbon shell layer increases the conductivity and offers protection for N-TiO_(2−x) to achieve an excellent electrochemical *** prepared N-TiO_(2−x)/C electrode is hydrophilic due to the abundant oxygen-containing functional groups(e.g.,C-O,N-Ti-O,-NO_(x),and-OH)and exhibits a high salt removal capacity(33.4 mg·g^(−1)),desalination rate(1.5 mg·g^(−1)·min^(−1)),and remarkable cycling stability(without declining after 100 cycles),which might be ascribed to the synergistic effects of the short ion diffusion path,more active adsorption sites,enhanced conductivity,pseudocapacitive behavior,and protection of the carbon shell *** work provides a confined-growth strategy to develop MXene-derived oxide electrodes for electrochemical desalination.

关键词： capacitive deionization confinement growth MXene-derived N-doped pseudocapacitive behavior

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Theoretical Performance Analysis of an Ejector Enhanced High-Temperature Heat Pump with Dual-Pressure Condensation and Evaporation

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Journal of Thermal Science 2022年第5期31卷 1367-1379页

作者： bai Tao LIU Ye YAN Gang yu Jianlin Department of Refrigeration and Cryogenic Engineering School of Energy and Power EngineeringXi’an Jiaotong UniversityXi’an710049China

In this paper,an ejector enhanced high-temperature heat pump with dual-pressure condensation and evaporation is proposed to improve the system *** analyses of the system operation characteristics are conducted using energetic and exergetic *** performance comparisons among the basic cycle,parallel compression cycle,and ejector enhanced cycle are conducted with six different refrigerants,including R245fa,R600a,R1234ze(Z),R1336mzz(Z),R1224yd(Z),and R1233zd(E).The results demonstrate that environmentally-friendly refrigerant R1234ze(Z)would be a promising alternative *** with the basic cycle and parallel compression cycle at selected operation conditions,29.5%and 12.6%improvements in COP,and 16.7%and 11.1%higher system exergy efficiency are achieved in the ejector enhanced cycle on *** volumetric heating capacity of the ejector enhanced cycle is increased by 15.7%–21.7%.The ejector enhanced cycle outperforms the other two cycles in high-temperature heat pump applications at the large temperature lift and temperature rise in the heat *** assessment offers an option to improve the energy utilization efficiency of the high-temperature heat pumps.

关键词： thermodynamics exergy high-temperature heat pump ejector dual-temperature condensation/evaporation

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Efficacy of active compounds of Chanqin granules on airway neurogenic inflammation induced by PM2.5 in vivo

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Journal of Traditional Chinese Medicine 2020年第5期40卷 792-802页

作者： ju Ya Shen Ruobing yu Xiaoping Department of Traditional Chinese Medicine Shuguang HospitalShanghai University of Traditional Chinese MedicineShanghai 200120China

OBJECTIVE:To investigate the efficacy of active compounds of Chanqin(CQ)granules on PM2.5-induced airway neurogenic inflammation in vivo,and to elucidate the underlying mechanisms of ***:The Traditional Chinese Medicine systems pharmacology(TCMSP)database was searched,and the results were combined with oral bioavailability and drug analysis to identify the compounds in CQ *** pharmacophore modeling approach was used to predict the compound targets,and the diseases corresponding to the targets were obtained by searching the therapeutic target database(TTD),pharmacogenomics knowledgebase(Pharm GKB)and Drug Bank *** software was used to construct the network pharmacological charts for Component-Target and Target-Disease interactions of the CQ ***,the mechanisms of action and effectiveness of CQ granules for the treatment of PM2.5-induced airway neurogenic inflammation were ***:A total of 195 compounds and 171 targets were obtained from the analyses.A total of569 corresponding diseases were identified for these ***-target and target-disease networks were *** possible mechanisms and effective components in CQ granules for treating airway neurogenic inflammation were ***,kaempferol and isorhamnetin,beta-sitosterol and sitosterol,which are typically found in the formulation,have extensive pharmacological activities,including anti-inflammatory,antioxidant and antiviral actions and neuroprotective *** these targets,androgen receptor,estrogen receptor,prostaglandin G/H synthase 2,and inducible nitric oxide synthase play important pathological roles,including the induction of neurogenic *** granules may have therapeutic effectiveness for numerous diseases in addition to respiratory diseases,including neoplasms,digestive system diseases,cardiovascular diseases,respiratory tract diseases and nervous system *** vivo,CQ granules are effective in trea

关键词： Neurogenic inflammation Pharmacology Neuropeptides MAP kinase signaling system Ganglia,spinal PM2.5 Chan Qin granules

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Quick-homogeneous Corrosion of Ti-2A1-2.5Zr Alloy in High-temperature and High-pressure Water Steam

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Journal of Materials Science & Technology 2001年第1期17卷 43-44页

作者： Lin YANG Zhentao yu ju DENG Northwest institute for Nonferrous Metal Research Xi’an 710016China

The corrosion behavior of Ti-2A1-2.5Zr alloy with 5 alloy contents and 5 surface states were studied in water steam at 400℃, 10.3 MPa for 72 h. The weight-increments of all samples are under 4 mg/dm2, better than Zr and Zr-alloy. or-Ti is oxidized into anatase-type TiO2 preferentially. The corrosion resistance is improved by adding Al element or pre-oxidizing treatment, the latter is more effective relatively.

关键词： corrosion resistance corrosion behavior surface states Al element

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Accumulated Rotation of A Modified Suction Caisson and Soil Deformation Induced by Cyclic Loading

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China Ocean Engineering 2020年第3期34卷 441-449页

作者： bai yun LI Da-yong ZHANG yu-kun Key Laboratory of Civil Engineering Disaster Prevention and Mitigation Shandong University of Science and TechnologyQingdao 266590China College of Civil Engineering Fuzhou UniversityFuzhouFujian 350108China

Modified suction caissons(MSCs)acting as offshore wind turbine foundations will generate the accumulated rotation under cyclic loading resulted from *** accumulated rotation and the range of soil deformation around the MSC under long-term cyclic wave loading were studied using 3-D numerical *** Morison equation was adopted to calculate the wave *** was found that the MSC accumulated rotation increases linearly with the increase of the logarithm of cyclic *** normalized expression was proposed to reflect the relationship between the accumulated rotation and cyclic *** soil deformation range around the MSC increases when increasing the cyclic number and loading *** can also be concluded that the accumulated rotation increases rapidly with this change of excess pore pressure in the first 4000 *** responses of the MSC to wave and wind loads were also *** show that the accumulated rotation of the MSC under both wave and wind loadings is larger than that under the wave loading only.

关键词： modified suction caisson(MSC) wave loading accumulated rotation soil deformation range

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Anti-HBV hairpin ribozyme-mediated cleavage of target RNA in vitro

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World Journal of Gastroenterology 2002年第1期8卷 91-94页

作者： yu-HuSong ju-ShengLin 等 InstituteofLiverDiseases TongjiHospitalTongjiMedicalCollegeHuazhongUniversityofScienceandTechologyWuhan430030HubeiProvinceChina InstituteofLiverDiseases TongjiHospitalTongjiMedicalCollegeHuazho

AIM: To study the preparation and cleavage activity of HpRzdirected against the transcript of HBV core gene in ***: HpRz gene designed by computer targeting thetranscript of HBV core gene was cloned into the vector p1 .5between 5'-cis-Rz and 3'-cis-Rz. 32p-labeled HpRz transcriptproved whether the vector fit for the preparation of hairpinribozyme in vitro. 32p-labeled pKC transcript containing HBVcore region as target-RNA was transcribed using T7 RNApolymerase and purified by denaturing PAGE. Cold HpRztranscript was incubated with 32p-labeled target-RNAs underdifferent conditions and radioautographed after denaturingpolyacrylamide gel ***: HpRz has the specific ability of cleavage of target-RNA at 37℃ and 12 mM MgCL2. Km = 26.31nmol/L, Kcat = 0.18/min. These results revealed that the design of HpRz ***: HpRz prepared in this study possessesspecific catalytic activity from the identification of cleavageactivity. These results indicate that hairpin ribozyme mayintracellularly inhibit the replication of HBV, therefore it maybecome a novel potent weapon for the treatment of hepatitisB.

关键词：乙型肝炎核酶 RNA分裂靶细胞抗病毒机制

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Comparative Study on Changes of Croplands Between North Korea and South Korea During 1990–2015

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Chinese Geographical Science 2018年第6期28卷 920-934页

作者： yu Hao ZHANG bai WANG Zongming Key Laboratory of Wetland Ecology and Environment Northeast Institute of Geography and Agroecology Chinese Academy of Sciences Changch un 130102 China University of Chinese Academy of Sciences Beijing 100049 China

Studies on long-term change of cropland is of great significance to the utilization of land resources and the implementation of scientific agricultural policies. The Korean Peninsula, adjacent to China, plays an important role in the international environment of Northeast Asia. The Korean Peninsula includes South Korea and North Korea—two countries that have a great difference in their institutions and economic developments. Therefore, we aim to quantify the spatiotemporal changes of croplands in these two countries using Landsat Thematic Imager(TM) and Operational Land Imager(OLI) imagery, and to compare the differences of cropland changes between the two countries. This paper take full advantage of ODM approach(object-oriented segmentation and decision-tree classification based on multi-season imageries) to obtain the distribution of croplands in 1990 and 2015. Results showed that the overall classification accuracy of cropland data is 91.10% in 1990 and 92.52% in 2015. The croplands were mainly distributed in areas with slopes that were less than 8° and with elevations that were less than 300 m in the Korean Peninsula. However, in other region(slope > 8° or elevation > 300 m), the area and proportion of North Korea's croplands were significantly higher than that of South Korea. Croplands significantly increased by 15.02% in North Korea from 1990 to 2015. In contrast, croplands in South Korea slightly decreased by 1.32%. During the 25 years, policy shift, economic development, population growth, and urban sprawl played primary roles for cropland changes. Additionally, the regional differences of cropland changes were mainly due to different agriculture policies implemented by different countries. The achievements of this study can provide scientific guidance for the protection and sustainability of land resources.

关键词： Landsat object-oriented segmentation decision tree cropland North Korea South Korea

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P2X_7 receptors in cerebral ischemia

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Neuroscience Bulletin 2013年第3期29卷 390-398页

作者： Hui-yu bai Ai-Ping Li Department of Physiology Dalian Medical University

Cerebral ischemia is one of the most common diseases resulting in death and disability in aged people. It leads immediately to rapid energy failure, ATP depletion, and ionic imbalance, which increase extracellular ATP levels and accordingly activate P2X7 receptors. These receptors are ATP-gated cation channels and widely distributed in nerve cells, especially in the immunocompetent cells of the brain. Currently, interest in the roles of P2Xz receptors in ischemic brain injury is growing. In this review, we discuss recent research progress on the actions of P2X7 receptors, their possible mechanisms in cerebral ischemia, and the potential therapeutic value of P2X7 receptor antagonists which may provide a new target both for clinical and for research purposes.

关键词： P2X7 receptor cerebral ischemia neurotoxicity calcium overload neuroinflammation neurotrans-mitter receptor antagonist

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Observability Inequality for the Petrovsky Equation

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Acta Mathematicae Applicatae Sinica 2016年第3期32卷 771-780页

作者： Zhong-yu bai Shu-gen CHAI Common Required Course Department Haikou College of Economics School of Mathematical Science Shanxi University

The aim of this paper is to study the exact controllability of the Petrovsky equation. Under some checkable geometric assumptions, we establish the observability inequality via the multiplier method for the Dirichlet ... 详细信息

关键词： exact controllability compact uniqueness multiplier method

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Theory and application of nonlinear river dynamics

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International Journal of Sediment Research 2014年第3期29卷 285-303页

作者： yu-chuan bai Zhao-yin WANG State Kev Laboratory of Hydraulic Engineering Simulation and Safety Tianjin University State Kev Laboratory of Hydroscience and Engineering Tsinghua University

A theoretical model for river evolution including riverbed formation and meandering pattern formation is presented in this *** on nonlinear mathematic theory,the nonlinear river dynamic theory is set up for river dynamic *** core content includes the stability and tropism characteristics of flow motion in river and river selves’ *** stability of river dynamic process depends on the response of river selves to the external disturbance,if the disturbance and the resulting response will eventually attenuate,and the river dynamics process can be restored to new equilibrium state,the river dynamic process is known as stable;otherwise,the river dynamic process is *** river dynamic process tropism refers to that the evolution tendency of river morphology after the *** an application of this theory,the dynamical stability of the constant curvature river bend is calculated for its coherent vortex disturbance and *** addition,this paper discusses the nonlinear evolution of the river peristaltic process under a large-scale disturbance,showing the nonlinear tendency of river dynamic processes,such as river filtering and butterfly effect.

关键词： River Dynamic process Reservoir Nonlinear Long term evolution River dynamics

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