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| 1 | Lipase-coupling es- terificationof starch with octenyl succinic an hydride显示文摘 | Xu Juan Zhou Chenwei Wang Ruizhi | 2012 | Carbo hydrate Polymers2012,87,3: | 1 |
| 2 | Hail impact responses and residual tensile properties of CFRP T-joints显示文摘Hail impact is a major challenge encountered by aircraft in flight,and thus is a key concern in the design of damage-tolerant composite T-joints in aviation.The study uses the Z-pinning technique(the pre-hole insertion technology)in combination with fillets of two radiuses to manufacture four types of Carbon Fiber Reinforced Polymers(CFRP)T-joints.The T-joints are then subjected to hail impact tests at two energy levels,as well as post-impact quasi-static tensile tests.The results show that increasing the size of the deltoid and Z-pin-induced reinforcement has a limited influence on the responses of the T-joints to hail impact,but a significant influence on their residual tensile strength after impact.These influences are not only dependent on the structural characteristics of the T-joints,but are also closely related to the degree of discrete damage within the T-joints caused by hail impact.Acoustic Emission(AE)technology is used to monitor the quantitative evolution of damage to the T-joints in a timely manner during the loading process,and helps characterize the characteristics of evolution of various types of damage over different periods.The research here can help design lightweight and damage-tolerant T-joints. | Jianwu ZHOU Zhibin ZHAO Yaoyao SHI Xu WANG Xiaopeng CHEN Chenwei SHAN | 2023 | Chinese Journal of Aeronautics2023,36,7: | 0 |
| 3 | Analogue Black Holes in Reactive Molecules显示文摘We show that reactive molecules with a unit probability of reaction naturally provide a simulator of some intriguing black hole physics.The unit reaction at the short distance acts as an event horizon and delivers a one-way traffic for matter waves passing through the potential barrier when two molecules interact by high partialwave scatterings or dipole-dipole interactions.In particular,the scattering rate as a function of the incident energy exhibits a thermal-like distribution near the maximum of the interaction energy in the same manner as a scalar field scatters with the potential barrier outside the event horizon of a black hole.Such a thermal-like scattering can be extracted from the temperature-dependent two-body loss rate measured in experiments on KRb and other molecules. | Ren Zhang Chenwei Lv Qi Zhou | 2023 | Chinese Physics Letters2023,40,5: | 0 |
| 4 | Reactive ball-milling synthesis of Co-Fe bimetallic catalyst for efficient hydrogenation of carbon dioxide to value-added hydrocarbons显示文摘Catalytic hydrogenation of CO_(2) using renewable hydrogen not only reduces greenhouse gas emissions,but also provides industrial chemicals.Herein,a Co-Fe bimetallic catalyst was developed by a facile reactive ball-milling method for highly active and selective hydrogenation of CO_(2) to value-added hydrocarbons.When reacted at 320℃,1.0 MPa and 9600 mL h^(-1) g_(cat)^(-1),the selectivity to light olefin(C_(2)^(=)-C_(4)^(=)) and C_(5)+ species achieves 57.3% and 22.3%,respectively,at a CO_(2) co nversion of 31.4%,which is superior to previous Fe-based catalysts.The CO_(2) activation can be promoted by the CoFe phase formed by reactive ball milling of the Fe-Co_(3)O_(4) mixture,and the in-situ Co_(2)C and Fe_(5)C_(2) formed during hydrogenation are beneficial for the C-C coupling reaction.The initial C-C coupling is related to the combination of CO species with the surface carbon of Fe/Co carbides,and the sustained C-C coupling is maintained by self-recovery of defective carbides.This new strategy contributes to the development of efficient catalysts for the hydrogenation of CO_(2) to value-added hydrocarbons. | Haipeng Chen Chenwei Wang Mengyang Zheng Chenlei Liu Wenqiang Li Qingfeng Yang Shixue Zhou Xun Feng | 2023 | Journal of Energy Chemistry2023,,9: | 0 |
| 5 | Tailoring morphology symmetry of bismuth vanadate photocatalysts for efficient charge separation显示文摘Although spatial charge separation between different facets of semiconductor crystals has been recognized as a general strategy in photocatalysis, the vital role of crystal morphology symmetry in charge separation properties still remains elusive. Herein,taking monoclinic bismuth vanadate(BiVO_(4)) as a platform, we found distinct charge separation difference via rationally tailoring the morphology symmetry from octahedral to truncated octahedral crystals. For octahedral BiVO_(4), photogenerated electrons and holes can be separated between edges and quasi-equivalent facets. However, as for truncated octahedral crystals,photogenerated electrons tend to transfer to {010} facets while photogenerated holes prefer to accumulate on {120} facets, thus realizing the spatial separation of photogenerated charge between different facets. Morphology tailoring of BiVO_(4) crystals leads to a significantly improved photogenerated charge separation efficiency and photocatalytic water oxidation activity. The built-in electric field for driving the separation of photogenerated electrons and holes is considered to be modulated by tuning the morphology symmetry of BiVO_(4) crystals. This work discloses the significant roles of morphology symmetry in photogenerated charge separation and facilitates the rational design of artificial photocatalysts. | Yuting Deng Hongpeng Zhou Chenwei Ni Fengke Sun Wenchao Jiang Ruotian Chen Wenming Tian Can Li Rengui Li | 2023 | Science China Chemistry2023,66,12: | 0 |
| 6 | Optimal Pricing Strategy for Data Center Considering Demand Response and Renewable Energy Source Accommodation显示文摘With the continuous development of information technology,data centers(DCs)consume significant and evergrowing amounts of electrical energy.Renewable energy sources(RESs)can act as clean solutions to meet this requirement without polluting the environment.Each DC serves numerous users for their data service demands,which are regarded as flexible loads.In this paper,the willingness to pay and time sensitivities of DC users are firstly explored,and the user-side demand response is then devised to improve the overall benefits of DC operation.Then,a Stackelberg game between a DC and its users is proposed.The upper-level model aims to maximize the profit of the DC,in which the time-varying pricing of data services is optimized,and the lower-level model addresses user’s optimal decisions for using data services while balancing their time and cost requirements.The original bi-level optimization problem is then transformed into a single-level problem using the Karush-Kuhn-Tucker optimality conditions and strong duality theory,which enables the problem to be solved efficiently.Finally,case studies are conducted to demonstrate the feasibility and effectiveness of the proposed method,as well as the effects of the time-varying data service price mechanism on the RES accommodation. | Chenwei Jiang Chung-Li Tseng Yizheng Wang Zhou Lan Fushuan Wen Fei Chen Liang Liang | 2023 | Journal of Modern Power Systems and Clean Energy2023,11,1: | 0 |
| 7 | LncRNA MIR205HG expression predicts efficacy of neoadjuvant chemotherapy for patients with locally advanced breast cancer显示文摘To the Editor,Recent studies reported that lncRNA MIR205HG expression is associated with sensitivity to anti-epidermal growth factor receptor(EGFR)drug in lung cancer cells.However,few clinical studies reported the role of this molecule in breast cancer,particularly in the neoadjuvant setting.In this study,we explored the clinical significance of MIR205HG expression with its predictive and prognostic value for patients with locally advanced breast cancer. | Yaqian Xu Chenwei Yuan Jing Peng Liheng Zhou Yanping Lin Yaohui Wang Jie Zhang Jiayi Ma Wenjin Yin Jinsong Lu | 2022 | Genes & Diseases2022,9,4: | 0 |
| 8 | Neutron Detector Efficiency in the Energy Range From 10 to 40 MeV显示文摘NeutronDetectorEfficiencyintheEnergyRangeFrom10to40MeVZhouZuying;TangHongqing;QiBujia;ZhouChenwei;DuYanfeng;XiaHaihong;ZhangL... | Zhou Zuying Tang Hongqing Qi Bujia Zhou Chenwei Du Yanfeng Xia Haihong Zhang Lishan Mao XiaoyongRichard. L.Walter Werner Tornow Calvin Howell Richard Braun Chen Zemin Chen Zhenpeng Chen Yingtang(Triangle Universities Nuclear Laboratory and Duk | 1996 | 中国原子能科学研究院年报1996,,1: | 0 |
| 9 | Neutron Scattering Differential Cross Sections of Carbon and Bismuth at 37 MeV显示文摘NeutronScatteringDifferentialCrossSectionsofCarbonandBismuthat37MeVZhouZuying;TangHongqing;QiBujia;ZhouChenwei;DuYanfeng;XiaH... | Zhou Zuying Tang Hongqing Qi Bujia Zhou Chenwei Du Yanfeng Xia Haihong Richard L.Walter Werner Tornow Calvin Howell Richard Braun Chris Roper Chen Zemin Chen Zhengpeng Chen Yingtang(Department of Physics,Duke University, Durham, NC 27708-0308, USA | 1996 | 中国原子能科学研究院年报1996,,1: | 0 |