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28篇 您的检索式:作者名="LinHan"
    题名 作者 年代 出处 被引量
1Liberation characteristics of coal middlings comminuted by jaw crusher and ball mill显示文摘The associated minerals make coal middlings possess a relatively high ash content.Subsequent liberation through size reduction can cause recovery increase.However,effect of comminution facilities on mineral liberation of middlings was ignored.This paper studied the liberation characteristics of middlings crushed with different kinds of fragmentation forces.Middlings of 3 mm+0.5 mm sampled from a dense medium cyclone were comminuted by a jaw crusher and a ball mill to 0.5 mm with similar size distribution respectively.The generating mechanism of fnes was also analyzed.Full densimetric analyses indicate that mineral liberation of the product crushed by the jaw crusher is better than that by the ball mill at each fraction.For sizes of 0.125 mm+0.074 mm and 0.074 mm,yields of the product with ash content 11%comminuted by jaw crusher are nearly 20%higher than that by the ball mill.Sectional micrographs observed by the scanning electron microscopy(SEM)also show the same law for these two fractions and some intergrowth particles still exist in the fraction of 0.5 mm+0.25 mm.Xie Weining He Yaqun Zhu Xiangnan Ge Linhan Huang Yajun Wang Haifeng 2013International Journal of Mining Science and Technology2013,23,5:12
2Functional Characterization of the Promoter and Second Intron of CUM1 During Flower Development in Cucumber(Cucumis sativus L.)显示文摘The characterization of flower specific promoter is critical during flower development by cucumber transformation technology.AGAMOUS(AG)is an organ identity gene that is required for carpel and stamen development in Arabidopsis.The promoter and second intron of AG contain multiple regulatory elements that confer proper spatial and temporal expression.Cucumber is an important vegetable with unisexual flowers.Cucumber MADS-box 1(CUM1)is the AG homolog in cucumber,belonging to the eu AG lineage along with AG.In situ hybridization showed that CUM1 was specifically expressed in the stamens and carpels of cucumber.GUS staining indicated that the second intron of CUM1 confers stamen-specific expression,while the promoter of CUM1 drives both stamen-and carpel-specific expression during the early stages of flower development,but is restricted to carpel-and connectivum-specific expression during the late stages of flower development.Furthermore,a yeast one-hybrid assay demonstrated that two auxin response factors(Cs ARF13 and Cs ARF17)had bound directly to the second intron of CUM1.Our data suggest that different regulatory circuits operate in AG homologs in plant species with distinct sex types.GU Ran LIU Xiaofeng ZHAO Wensheng YAN Shuangshuang SUN Linhan WU Binning ZHANG Xiaolan 2018Horticultural Plant Journal2018,4,3:9
3Dynamically reconfigurable topological edge state in phase change photonic crystals显示文摘The observation of topological edge states(TESs) revolutionized our understanding of scattering and propagation of electromagnetic(EM) waves. Supported by topological robustness, the TES at the interface between trivial and non-trivial insulators was not reflected from the structural disorders and imperfections. Recently topological photonic crystals(PhCs) were demonstrated to obtain remarkable one-way propagation of the TES, having the advantages of lossless propagation, dense integration, and high fabrication tolerance over conventional PhCs. Nevertheless, the lack of reversible switching of TES possesses significant limitations in helicity/spin filtering and tunable photonic devices. We proposed a topological PhC based on a prototypical phase-change material, Ge2 Sb2 Te5(GST225) to solve the problem. We find that at a particular frequency, the TES within the structure can be reversibly switched between 'on'and 'off' by transiting the GST225 structural state between amorphous and crystalline. Moreover, the topology of the PhC was maintained since the tuning of TES was achieved by varying the refractive index of GST225 instead of the structural geometry. This provides a continuous change of the spectral position of the photonic bandgap and TES by gradually crystallising the GST225. We show that the phase change of GST225 from amorphous to crystalline and vice versa can be engineered in nanoseconds. Our proof of concept may offer a platform for dynamically tuning the TESs that might otherwise be challenging to attain in photonic systems. We expect it to have potential applications for photonic devices in topological optical circuits and scatter-free one-way light propagation.Tun Cao Linhan Fang Ying Cao Nan Li Zhiyou Fan Zhiguo Tao 2019Science Bulletin2019,64,12:8
4Joint optimization of LORA and spares stocks considering corrective maintenance time显示文摘Level of repair analysis(LORA) is an important method of maintenance decision for establishing systems of operation and maintenance in the equipment development period. Currently, the research on equipment of repair level focuses on economic analysis models which are used to optimize costs and rarely considers the maintenance time required by the implementation of the maintenance program. In fact, as to the system requiring high mission complete success, the maintenance time is an important factor which has a great influence on the availability of equipment systems. Considering the relationship between the maintenance time and the spares stocks level, it is obvious that there are contradictions between the maintenance time and the cost. In order to balance these two factors, it is necessary to build an optimization LORA model. To this end, the maintenance time representing performance characteristic is introduced, and on the basis of spares stocks which is traditionally regarded as a decision variable, a decision variable of repair level is added, and a multi-echelon multiindenture(MEMI) optimization LORA model is built which takes the best cost-effectiveness ratio as the criterion, the expected number of backorder(EBO) as the objective function and the cost as the constraint. Besides, the paper designs a convex programming algorithm of multi-variable for the optimization model, provides solutions to the non-convex objective function and methods for improving the efficiency of the algorithm. The method provided in this paper is proved to be credible and effective according to the numerical example and the simulation result.Linhan Guo Jiujiu Fan Meilin Wen Rui Kang 2015Journal of Systems Engineering and Electronics2015,26,1:8
5Experiment and simulation on the pyrite removal from the recirculating load of pulverizer with a dilute phase gas-solid fluidized bed显示文摘In order to reduce the energy consumption and subsequent air pollution of coal-fired power station, based on the analysis to size and density distribution of particles from the recirculating load of the classifier of pulverizer, the separation experiment on sampling material from power plant with a dilute phase fluidized bed to remove pyrite and other minerals and numerical simulation on the separation process were done. The results show that the minimum fluidization velocity is 1.62 cm/s. Pyrite and other minerals in the material are separated. Ash of the upper and bottom layer material account for 33.34% and 73.42% respectively and sulfur content occupy 1.12% and 8.96% respectively. Scanning electron microscopy and spectroscopy tests show that sulfur in the bottom material exist in the form of pyrite. Numerical simulation on the flow field form of the dilute phase separation bed with gas-solid two phase and particle motion verifies the experimental results.Wang Shuai He Yaqun He Jingfeng Ge Linhan Liu Qing 2013International Journal of Mining Science and Technology2013,23,2:6
6Breakage and separation mechanism of ZGM coal mill based on parameters optimization model显示文摘Sampling ports were firstly drilled on a ZGM95 coal mill in the power plant in China, and the coal samples from various points in the pulverizer were collected under the different operation conditions. The property of the sampling material from the mill was analyzed, applying the float–sink test, size distribution analysis, proximate analysis and so on. It was indicated that the +250 lm fraction in the pulverized fuel accounted for only 0.02%, while it was 83.2% in the new feed. The circulating ratio and coal flow in the separator and the cone zone were calculated using the mass balance of the circulating load. So, the circulating ratio in the separator of the pulverizer was between 8 and 13, and the circulating ratio, the feed flow of separator and cone zone all raised with the increase of the air volume. Furthermore, the parameters of the separation functions were obtained based on the fitting method. It was shown that the mean value of the shape factor B was 0.7617, and the parameter D which is the particle size at 50% cumulative yield in the separator almost kept unchanged.Wei Hua He Yaqun Shi Fengnian Zhou Nianxing Wang Shuai Ge Linhan 2014International Journal of Mining Science and Technology2014,24,2:5
7Microstructure-based hot extrusion process control principles for nickel-base superalloy pipes显示文摘The properties of nickel-base superalloy pipes are determined by microstructure, and the microstructure can be tuned by hot extrusion process. There are two major questions in hot extrusion: one is how to successfully extrude pipes without apparent defects, the other is how to make the microstructure under control. However, up to now, there is no systematical report about hot extrusion process and microstructure control for nickel-base superalloys. In present study, a series of technical control principles for hot extrusion are proposed basing on practical manufacture facts, large amounts of experimental studies and finite element simulation of several typical nickel-base superalloys. The common used technical control principles can be applied for hot extrusion parameters determination to maintain safety hot extrusion and microstructure control. In the investigation of microstructure control based hot extrusion principles, the action rules of different working parameters on hot extrusion field quantities were established. The upper and lower limits of different principles were obtained in consideration of materials characteristics and extruder conditions. The limitations were overlapped on the action rules to determine the optimized hot extrusion parameters. The microstructure-based control principle proposed in present work can provide theoretical guidance for hot extrusion parameter determination and optimization.He Jiang Linhan Li Jianxin Dong Xishan Xie 2018Progress in Natural Science:Materials International2018,28,3:4
8Pathogenesis of allergic diseases and implications for therapeutic interventions显示文摘Allergic diseases such as allergic rhinitis (AR), allergic asthma (AAS), atopic dermatitis (AD), food allergy (FA), and eczema aresystemic diseases caused by an impaired immune system. Accompanied by high recurrence rates, the steadily rising incidence ratesof these diseases are attracting increasing attention. The pathogenesis of allergic diseases is complex and involves many factors,including maternal-fetal environment, living environment, genetics, epigenetics, and the body’s immune status. The pathogenesisof allergic diseases exhibits a marked heterogeneity, with phenotype and endotype defining visible features and associatedmolecular mechanisms, respectively. With the rapid development of immunology, molecular biology, and biotechnology, manynew biological drugs have been designed for the treatment of allergic diseases, including anti-immunoglobulin E (IgE), antiinterleukin(IL)-5, and anti-thymic stromal lymphopoietin (TSLP)/IL-4, to control symptoms. For doctors and scientists, it is becomingmore and more important to understand the influencing factors, pathogenesis, and treatment progress of allergic diseases. Thisreview aimed to assess the epidemiology, pathogenesis, and therapeutic interventions of allergic diseases, including AR, AAS, AD,and FA. We hope to help doctors and scientists understand allergic diseases systematically.Ji Wang Yumei Zhou Honglei Zhang Linhan Hu Juntong Liu Lei Wang Tianyi Wang Haiyun Zhang Linpeng Cong Qi Wang 2023Signal Transduction and Targeted Therapy2023,8,4:3
9Subsurface reconstruction and saturation of surface bonds显示文摘Surface reconstructions and stabilization mechanisms have been great challenges for insulators. Based on accurate determination of the long-sought atomic structure of the spinel(1 1 1) surface, here we show that the surface is stabilized by an unconventional mechanism. In general, solid surfaces have unsaturated chemical bonds and are prone to atomic reconstruction to saturate them. The spinel(1 1 1) surface,however, has the surface bonds fully saturated, while the unsaturated bonds remain only in the subsurface. It undergoes a reconstruction that keeps the topmost atomic layer unchanged, but has the subsurface atoms completely rearranged. Such a reconstruction results in a perfect compensation of the surface polarity and a large reduction in the surface energy. This work provides surprising insights into the surface stability and physical and chemical behaviors of complex oxides and insulators.Linhan Liu Yonghao Sun Zhiying Cheng Jing Zhu Rong Yu 2018Science Bulletin2018,63,23:2
10巴黎、新加坡中压配电网供电模型启示(Revela-tiononpowermodelsofMVdistributionnetworkofParisandSingapore)显示文摘吴涵 林韩 温步瀛 等(wuHan LinHan WenBuying etal) 2010电力与电I2010,30,2:1
11Opto-thermoelectric pulling of light-absorbing particles显示文摘Optomechanics arises from the photon momentum and its exchange with low-dimensional objects.It is well known that optical radiation exerts pressure on objects,pushing them along the light path.However,optical pulling of an object against the light path is still a counter-intuitive phenomenon.Herein,we present a general concept of optical pulling-opto-thermoelectric pulling(OTEP)—where the optical heating of a light-absorbing particle using a simple plane wave can pull the particle itself against the light path.This irradiation orientation-directed pulling force imparts self-restoring behaviour to the particles,and three-dimensional(3D)trapping of single particles is achieved at an extremely low optical intensity of 10^(−2)mWμm^(−2).Moreover,the OTEP force can overcome the short trapping range of conventional optical tweezers and optically drive the particle flow up to a macroscopic distance.The concept of selfinduced opto-thermomechanical coupling is paving the way towards freeform optofluidic technology and lab-on-achip devices.Linhan Lin Pavana Siddhartha Kollipara Abhay Kotnala Taizhi Jiang Yaoran Liu Xiaolei Peng Brian A.Korgel Yuebing Zheng 2020Light(Science & Applications)2020,9,1:1
12Design and applications of lattice plasmon resonances显示文摘与他们与表面电浆子的刺激联系的唯一的光性质,金属 nanoparticles (NP ) 在光传感器和设备中被使用了。进数组的这些 NP 的组织能导致联合效果设计新光回答。特别地,格子电浆子回声(LPR ) 它从协调相互作用产生并且在周期的数组在 NP 之中联合,为认识到狭窄的线宽,角度依赖者分散,和光系列的高波长 tunability 显示出大诺言。由在数组以内设计 NP 的材料,形状,尺寸,和空间安排,一个人能调节基于 LPR 光谱对的回答和电磁的地分布交付大量的改进包括高 figure-of-merit,优异轻事的相互作用,和 multiband 操作。在这评论,我们在为基于 LPR 的应用设计并且适用新金属 nanostructures 讨论最近的进步。我们在未来机会和基于 LPR 的设备的挑战上与我们的观点结束这评论。Bharath Bangalore Rajeeva Linhan Lin Yuebing Zheng 2018Nano Research2018,11,9:1
13Characteristics of wet and dry crushing methods in the recycling process of spent lithium-ion batteries显示文摘ZHANG Tao HE Yaqun GE Linhan 2013Journal of Power Sources2013,240,:1
14Study on Military Equipment Support Modeling and Simulation 显示文摘Zhang Wenjin Kang Rui Guo Linhan 2005Journal of Chinese Journal of Aeronautics2005,18,2:1
15Simultaneous NF‐κB inhibition and E‐cadherin upregulation mediate mutually synergistic anticancer activity of celastrol and SAHA in vitro and in vivo显示文摘Lin Zheng Yingying Fu Linhan Zhuang Renhua Gai Jian Ma Jianshu Lou Hong Zhu Qiaojun He Bo Yang 2014Int. J. Cancer2014,,:1
16Study on military equipment support modeling and simulation显示文摘Zhang Wenjin Kang Rui Guo Linhan 0,,02:1
17Dynamic response of the non-contact underwater explosions on naval equipment显示文摘Zhang Aman Zhou Weixing Wang Shiping Feng Linhan 2011Marine Structures2011,,4:1
18Cloning and Sequence Analysis of the Gene Encoding (6-4)photolyase from Dunaliella salina显示文摘 Yi C Qian L Min L Long C Linhan B Zhirong Y Dairong Q 2006Biotechnol Lett2006,28,5:1
19Response surface methodology-based hybrid robust design optimization for complex product under mixed uncertainties显示文摘Minimizing the impact of the mixed uncertainties(i.e.,the aleatory uncertainty and the epistemic uncertainty) for a complex product of compliant mechanism(CPCM) quality improvement signifies a fascinating research topic to enhance the robustness.However, most of the existing works in the CPCM robust design optimization neglect the mixed uncertainties, which might result in an unstable design or even an infeasible design. To solve this issue, a response surface methodology-based hybrid robust design optimization(RSM-based HRDO) approach is proposed to improve the robustness of the quality characteristic for the CPCM via considering the mixed uncertainties in the robust design optimization. A bridge-type amplification mechanism is used to manifest the effectiveness of the proposed approach. The comparison results prove that the proposed approach can not only keep its superiority in the robustness, but also provide a robust scheme for optimizing the design parameters.WAN Liangqi CHEN Hongzhuan OUYANG Linhan 2019Journal of Systems Engineering and Electronics2019,30,2:1
20Designing artificial ion channels with strict K^(+)/Na^(+)selectivity toward next-generation electric-eel-mimetic ionic power generation显示文摘A biological potassium channel is>1000 times more permeable to K^(+)than to Na^(+)and exhibits a giant permeation rate of~10^(8)ions/s.It is a great challenge to construct artificial potassium channels with such high sele ctivity and ion conduction rate.Herein,we unveil a long-overlo oked structural feature that underpins the ultra-high K^(+)/Na^(+)selectivity.By carrying out massive molecular dynamics simulation for ion transport through carbonyl-oxygen-modified bi-layer graphene nanopores,we find that the twisted carbonyl rings enable strict potassium selectivity with a dynamic K^(+)/Na^(+)selectivity ratio of 1295 and a K^(+)conduction rate of 3.5×10^(7)ions/s,approaching those of the biological counterparts.Intriguingly,atomic trajectories of K^(+)permeation events suggest a dual-ion transport mode,i.e.two like-charged potassium ions are successively captured by the nanopores in the graphene bi-layer and are interconnected by sharing one or two interlayer water molecules.The dual-ion behavior allows rapid release of the exiting potassium ion via a soft knock-on mechanism,which has previously been found only in biological ion channels.As a proof-of-concept utilization of this discovery,we propose a novel way for ionic power generation by mixing KCl and NaCl solutions through the bi-layer graphene nanopores,termed potassium-permselectivity enabled osmotic power generation(PoPee-OP G).Theoretically,the biomimetic device achieves a very high power density of>1000 W/m^(2)with graphene sheets of<1%porosity.This study provides a blueprint for artificial potassium channels and thus paves the way toward next-generation electric-eel-mimetic ionic power generation.Jipeng Li Linhan Du Xian Kong Jianzhong Wu Diannan Lu Lei Jiang Wei Guo 2023National Science Review2023,10,12:0
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