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56篇 您的检索式:作者名="Sichao"
    题名 作者 年代 出处 被引量
1Catastrophe mechanism and disaster countermeasure for soft rock roadway surrounding rock in Meihe mine显示文摘The soft rock's heterogeneity and nonlinear mechanical behavior cause extremely difficult maintenance on the soft rock roadway. Aiming at the asymmetric deformation and destruction phenomenon appearing after excavating and supporting the 7101 air return way in Meihe mine, this paper comprehensively adopted a variety of methods to analyze the roadway surrounding rock deformation rule, obtaining the roadway surrounding rock stress and plastic zone distribution rule under no supporting condition and the roadway surrounding rock deformation features under original symmetric supporting condition.Furthermore, this paper revealed the catastrophe mechanism, and proposed the concept of ‘‘weak structure'' and the disaster countermeasure of ‘‘overall stabilizing the roadway and strengthening the support of weak structure''. The industrial test shows that the disaster control technology can realize the coordination deformation of the supporting structure and roadway surrounding rock, thus significantly controlling the deformation of roadway surrounding rock.Yu Yang Zhu Caikun Chong Deyu Liu Yang Li Sichao 2015International Journal of Mining Science and Technology2015,25,3:5
2Optically induced rotation of Rayleigh particles by arbitrary photonic spin显示文摘Optical trapping techniques hold great interest for their advantages that enable direct handling of nanoparticles. In this work, we study the optical trapping effects of a diffraction-limited focal field possessing an arbitrary photonic spin and propose a convenient method to manipulate the movement behavior of the trapped nanoparticles. In order to achieve controllable spin axis orientation and ellipticity of the tightly focused beam in three dimensions, an efficient method to analytically calculate and experimentally generate complex optical fields at the pupil plane of a high numerical aperture lens is developed. By numerically calculating the optical forces and torques of Rayleigh particles with spherical/ellipsoidal shape, we demonstrate that the interactions between the tunable photonic spin and nanoparticles lead to not only 3D trapping but also precise control of the nanoparticles' movements in terms of stable orientation, rotational orientation, and rotation frequency. This versatile trapping method may open up new avenues for optical trapping and their applications in various scientific fields.GUANGHAO RUI YING LI SICHAO ZHOU YUSONG WANG BING GU YIPING CUI QIWEN ZHAN 2019Photonics Research2019,7,1:4
3A TiO_(2)nanotubes film with excellent antireflective and near-perfect self-cleaning performances显示文摘SiO_(2)/TiO_(2)composite films have been frequently used to realize the functions of self-cleaning and antireflection.Increasing the TiO_(2)volume ratio in SiO_(2)/TiO_(2)composite film is beneficial to enhance the self-cleaning effect,while high TiO_(2)content leads to a strong Rayleigh scattering and depresses the antireflective performance,resulting in a bottleneck problem for the dual-functional application.Here,we have achieved a high-quality TiO_(2)nanotubes film with excellent antireflective and near-perfect selfcleaning performances.Ultrasound assisted pickling method has been developed to effectively prepare the well-dispersed protonated titanate nanotubes colloid.After spin-coating and annealing treatment,glass substrate coated with double-side TiO_(2)nanotubes film has a peak transmittance of 99.2%and average transmittance of 97.4%at 400-800 nm.Ultra-high porosity of TiO_(2)nanotubes film(80%)and ultra-fine size of TiO_(2)nanotubes(8.6 nm in outer diameter)lead to excellent antireflective performance.With high UV absorptivity(80%at 254 nm)and formal quantum efficiency of stearic acid(10.9×10^(-3)),TiO_(2)nanotubes film shows near-perfect self-cleaning performance.A persistent anti-fogging ability is also presented.This study demonstrates the feasibility to fabricate pure TiO_(2)antireflective coating for glass substrate,extends application field of the classic TiO_(2)nanotubes,and sheds lights on the practical applications of high-powered TiO_(2)nanotube-based multi-functional films.Kaibin Li Ming Li Chang Xu Zengyan Du Jiawang Chen Fengxia Zou Chongwen Zou Sichao Xu Guanghai Li 2021Journal of Materials Science & Technology2021,,29:3
4Enhanced simultaneous absorption of NO_(x) and SO_(2) in oxidation-reduction-absorption process with a compounded system based on Na_(2)SO_(3)显示文摘Oxidation of sulfite and competitive absorption existed in Na_(2)SO_(3) solution for simultaneous removal of NO_(x) and SO_(2),inhibited the long-term high-efficiency when used for practical applications.A matching strategy was developed to solve these problems.Antioxidants combination was used to retard the oxidation of antioxidant and enhance inhibition of S(IV)(tetravalent sulfur)oxidation.Hydroquinone(HQ)and sodium thiosulfate(ST)showed a positive synergistic effect on inhibition of S(IV)oxidation.When SO_(2) concentration was 500 and 2000 ppmV,the addition of 0.1 wt.%HQ and 1 wt.%ST decreased the percentage of S(IV)oxidized by oxygen by over 30%and 40%,respectively.Alkali(Na_(2)CO_(3))alleviated the competitive absorption between NO_(x) and SO_(2).Moreover,Na_(2)CO_(3) exhibited an enhancement effect on the absorption of NO_(x) and SO_(2) when coupled with anti-oxidants.While the increase of oxygen pressure accelerated the oxidation of S(IV),the anti-oxidants can retard the oxidation.The measurement of pH suggested the removal efficiency of NO_(x) highly depended on SO_(3)^(2-) concentration rather than pH.The further investigation of the mechanism suggested the match effect was related to the interaction between ST and the intermediate product of HQ.The match strategy holds a potential for application of SO_(3)^(2-) to denitration.Sichao Li Wenjun Huang Haomiao Xu Kai Liu Jia-nan Wang Yaning Sun Zan Qu Naiqiang Yan 2022Journal of Environmental Sciences2022,34,1:2
5Droplet Motion and Phase Change Model with Two-Way Coupling显示文摘The droplet interacts intensively with surrounding gas when moving and evaporating in the gas,of which the mutual effects of the gas and the evaporating droplet need to be taken into account.For the typical droplet model,the gas parameters are usually considered as that at infinity and the local parameter variation surrounding the droplet is neglected,consequently leading to some discrepancies.This research tries to develop a new moving droplet phase change model with two-phase coupling which characterizes the local parameter variation of gas phase surrounding the evaporating droplet.Firstly,the interaction mechanism of two phases is presented based on the droplet evaporation phenomena.Then,the droplet motion and phase change model is developed through the theoretical derivation.Subsequently,the analysis of the evaporation characteristics of the injected droplets in the hot air is conducted to simulate the operation process of the containment spray system in the nuclear power station.The numerical simulation indicates the refined droplet model is more capable for precise prediction of the situations with large quantities of evaporating droplets and with intensive interactions between two phases.ZHAO Fulong LIU Qianfeng YAN Xiao BO Hanliang ZENG Chen TAN Sichao 2019Journal of Thermal Science2019,28,4:2
6Environmental pollution status assessment of water and soil in Langfang City显示文摘Jinzhong GONG Shujuan SHI Sichao JIN Jinsheng WANG 2006Chinese Journal Of Geochemistry2006,25,B08:2
7UHF surface dynamics parameters radar design and experiment显示文摘Wang Sichao Wen Biyang Wang Caijun 2014IEEE Microwave and Wireless Components Letters2014,24,1:1
8Highly Efficient and Recyclable Triple-Shelled Ag@Fe3O4@SiO2@TiO2 Photocatalysts for Degradation of Organic Pollutants and Reduction of Hexavalent Chromium Ions显示文摘SU Jianwei ZHANG Yunxia XU Sichao 2014Nanoscale2014,6,10:1
9Citric acid modulated electrochemical syn- thesis and photocatalytic behavior of BLOC1 nanoplates with ex- posed {001} 显示文摘Xu Yue Xu Sichao 2014Dalton Trans2014,2,43:1
10Expo-nential stability of impulsive discrete systems with timedelay and applications in stochastic neural networks : aRazumikhin approach显示文摘Wu Sichao Li Chuandong Liao Xiaofeng 2011Neurocomputing2011,82,:1
11Paging and Registration in Cellular Networks: Jointly Optimal Policies and an Iterative Algorithm 显示文摘Bruce Hajek Kevin Mitzel Sichao Yang 2008IEEE Transactions on Information Theory: (S0018-9448)2008,54,2:1
12Experimental study of friction and heat transfer characteristics in narrow rectangular channel显示文摘Chang Wang Puzhen Gao Sichao Tan Zhanwei Wang Chao Xu 2012Nuclear Engineering and Design2012,,:1
13Risk factors for intracranial hemorrhage and mortality in adult patients with severe respiratory failure managed using veno-venous extracorporeal membrane oxygenation显示文摘Background: Intracerebral hemorrhage (ICH) is one of the most severe complications during veno-venous extracorporeal membrane oxygenation (VV-ECMO). This study aimed to determine the risk factors for ICH and mortality in such patients.Methods: We analyzed the clinical data of 77 patients who received VV-ECMO due to severe respiratory failure from July 2013 to May 2019 at China-Japan Friendship Hospital. Demographical data, laboratory indices, imaging characteristics, and other clinical information were collected. Multivariable logistic regression analyses were performed to identify risk factors for ICH and mortality.Results: Of 77 patients, 11 (14.3%) suffered from ICH, and 36 (46.8%) survived. The survival rate was significantly lower (18.2% [2/11]vs. 51.5% [34/66],P = 0.040) in patients with ICH than in those without ICH. Multivariable analysis revealed that factors independently associated with ICH were diabetes mellitus (adjusted odds ratio [aOR]: 12.848, 95% confidence interval [CI]: 1.129-146.188,P = 0.040) and minimum fibrinogen during ECMO (aOR: 2.557, 95% CI: 1.244-5.252,P = 0.011). Multivariable analysis showed that factors independently associated with mortality were acute hepatic failure during ECMO (aOR: 9.205, 95% CI: 1.375-61.604,P = 0.022), CO2 retention before ECMO (aOR: 7.602, 95% CI: 1.514-38.188,P = 0.014), and minimum platelet concentration during ECMO (aOR: 0.130, 95% CI: 0.029-0.577,P = 0.007).Conclusions: Diabetes mellitus and minimum fibrinogen concentration during ECMO are risk factors for ICH in patients with severe respiratory failure managed using VV-ECMO. This indicated that anticoagulants use and nervous system monitoring should be performed more carefully in patients with diabetes when treated with VV-ECMO due to severe respiratory failure.Xiaojing Wu Min Li Ying Cai Tianshu Zhai Yi Zhang Qingyuan Zhan Sichao Gu 2022Chinese Medical Journal2022,,1:1
14optimal Delay-Throughput Tradeoffs in Mobile Ad Hoc Networks显示文摘Ying Lei Yang Sichao Srikant R 2008IEEE Transactions on Information Theory2008,54,09:1
15Postmortem Changes in Physicochemical Properties of Songpu Mirror Carp ( Cyprinus Carpio ) during Iced Storage显示文摘Sichao Zhu Zhongyun Zhou Ligeng Feng Yongkang Luo 2014Food Bioscience2014,,:1
16The weeping characteristic of submerged multi-orifice plate显示文摘Weeping is an adverse phenomenon which results in higher pressure drop and poorer aeration performance.Visual experiments have been conducted to study the mechanism by which weeping impairs the work performance of multi-orifice plate.A theoretical model is improved to analyze the weeping phenomenon of multiorifice plate based on potential flow theory.The relations of different bubbling conditions and weeping rate are analyzed.Weeping condition and average weeping rate have relation with the driven pressure differential and dynamic variation of gas chamber pressure.In addition,a set of experiments are designed to study the influence of various factors on weeping rate.The bubble coalescence during bubble formation is a fatal factor determining weeping rate,so the relation between weeping rate and gas flow rate is concerned with the pitch of orifices and orifice diameter.There is a critical plate thickness which is in favor of weeping.Jiming Wen Ruifeng Tian Sichao Tan Qiunan Sun Haifeng Gu 2020Chinese Journal of Chemical Engineering2020,28,4:1
17Efficient enantioselective synthesis of CF_(2)Hcontaining dispiro[benzo[b]thiophene-oxindolepyrrolidine]s via organocatalytic cycloaddition显示文摘An efficient and practical organocatalytic asymmetric[3+2]cycloaddition of difluoromethylated ketoimines and methyleneindolinones catalyzed by a quinine-derived squaramide has been disclosed.Under mild conditions,a broad range of CF_(2)H-containing dispiro[benzo[b]thiophene-oxindole-pyrrolidine]s bearing four adjacent chiral centers including two vicinal spiro quaternary stereocenters were obtained in high yields(up to 99%yield)with excellent diastereoselectivities(>20:1 dr,in all cases)and enantioselectivities(up to 99%ee).Yabo Deng Yongzhen Li Yalan Wang Shuo Sun Sichao Ma Pengfei Jia Wenguang Li Kairong Wang Wenjin Yan 2022Organic Chemistry Frontiers2022,9,1:1
18Evaluation of COz free electricity trading market in Japan by multi-Agent simulations显示文摘Sichao K Yamamoto H Yamaji K 2010Energy Policy2010,38,7:1
19Experi- mental study on two-phase flow instability of natural circulation under rolling motion condition显示文摘TAN Sichao SU Guanghui GAO Puzhen 2009An- nals of Nuclear Energy2009,36,1:1
20Exponential stability of impulsive discrete systems with time delay and applications in stochastic neural networks: a Razumikhin approach 显示文摘WU Sichao LI Chuandong LIAO Xiaofeng 2011Neurocomputing2011,82,:1
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