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| 1 | A new technology for hard-rock tunneling based on drilling and hydraulic impact breaking显示文摘In order to realize the safety, high efficiency and rapidity of hard rock tunneling, we propose the drilling &hydraulic impact hard-rock tunneling(DHIHT) technology and method. Based on the LS-DYNA explicit module and APDL programming, the key parameters of DHIHT, including drilling spacing and drilling radius, were investigated. The simulation results show that: the drilling spacing should not exceed0.20 m-larger distances weaken the actual breaking effect; the best drilling radius is about 0.035 m, larger or smaller distances would both decrease the effect of drilling-hole free surfaces. The field impact breaking experiments were conducted in Baitaizi township granite quarry, Jinzhou, Liaoning province,China. The experiment results indicate that DHIHT is a feasible method for hard-rock tunneling, but its efficiency still needs to be further optimized and improved. | Long Risheng Sun Shaoni Lian Zisheng Liao Yaoyao Qin Xiaofeng | 2015 | International Journal of Mining Science and Technology2015，25，6： | 4 |
| 2 | Structural insights into Ca^2+-activated long-range allosteric channel gating of RyR1显示文摘Ryanodine 受体(RyRs ) 是有分子的质量的巨大的离子隧道的一个班超过 2.2 大 -- 道尔顿。这些隧道调停钙在许多房间发信号。因为超过 80% RyR 蛋白质被合拢进细胞质的集会,留下的残余形成 transmembrane 领域, RyR 隧道的激活和规定发生通过,这被假设了一迄今为止 uncharacterized 远程的 allosteric 机制。这里,我们报导 Ca 2+-activated 的描述由 cryo 电子的开状态的 RyR1 结构显微镜学。结构有 4.9 Å 的一个全面决定;并且 4.2 Å 的一个决定;为核心区域。与以前坚定的 apo/closed-state 结构比较,我们在 Ca 2+ 激活之上观察了隧道的远程的 allosteric gating。深入的结构的分析阐明了新奇隧道门机制和 RyR1 的新奇离子选择机制。我们的工作不仅提供结构的卓见进隧道 gating 和 RyRs 的规定的分子的机制,而且为 six-transmembrane-helix 阳离子隧道家庭为隧道门和离子选择机制使结构的基础清楚些。 | Risheng Wei Xue Wang Yan Zhang Saptarshi Mukherjee Lei Zhang Qiang Chen Xinrui Huang Shan Jing Congcong Liu Shuang Li Guangyu Wang Yaofang Xu Sujie Zhu Alan J Williams Fei Sun Chang-Cheng Yin | 2016 | Cell Research2016，26，9： | 3 |
| 3 | Defect engineering for high-selection-performance of NO reduction to NH3 over CeO_(2)(111)surface:A DFT study显示文摘To reduce the greenhouse effect caused by the surgery of nitrogen-oxides concentration in the atmosphere and develop a future energy carrier of renewables,it is very critical to develop more efficient,controllable,and highly sensitive catalytic materials.In our work,we proposed that nitric oxide(NO),as a supplement to N_(2) for the synthesis of ammonia,which is equipped with a lower barrier.And the study highlighted the potential of CeO_(2)(111)nanosheets with La doping and oxygen vacancy(OV)as a high-performance,controllable material for NO capture at the site of Vo site,and separation the process of hydrogenation.We also reported that the E_(ads) of-1.12 eV with horizontal adsorption and the Bader charge of N increasing of 0.53|e|and O increasing of 0.17|e|at the most active site of reduction-OV predicted.It is worth noting thatΔG of NORR(NO reduction reaction)shows good performance(thermodynamically spontaneous reaction)to synthesize ammonia and water at room temperature in the theoretical calculation. | Chaozheng He Risheng Sun Ling Fu Jinrong Huo Chenxu Zhao Xiuyuan Li Yan Song Sumin Wang | 2022 | Chinese Chemical Letters2022，33，1： | 1 |
| 4 | Degradation of 4-aminophenol by hydrogen peroxide oxidation using enzyme from Serratia marcescens as catalyst显示文摘This paper reports on the degradation of 4-aminophenol using hydrogen peroxide as oxidizer and the enzyme from Serratia marcescens AB 90027 as catalyst.The effecting factors during degradation and the degrading mechanism were studied.Also,the location of the enzyme in the cell,which could catalyze the degradation of 4-aminophenol,was analyzed.The results showed that to degrade 50 mL of 4-aminophenol whose concentration was 500 mg/L,the optimal conditions were:volume of H_(2)O_(2)=3 mL,temperature=40-60°C and pH=9-10.In the degra-dation process,4-aminophenol was first converted to benzo-quinone and NH3,then organic acids including maleic acid,fumaleic acid,and oxalic acid were formed,and then finally CO_(2) and H2O were generated as final products.The enzyme that could catalyze the degradation of 4-aminophenol was mainly extracellular enzyme. | SUN Min YAO Risheng YOU Yahua DENG Shengsong GAO Wenxia | 2007 | Frontiers of Environmental Science & Engineering2007，1，1： | 1 |
| 5 | 分子筛限域合成亚纳米双金属簇Pd-M(OH)2(M=Ni,Co)催化剂实现高效产氢显示文摘文章简介课题组利用分子筛的纳米孔道限域效应,在水热条件下成功原位制备了纯硅分子筛Silicalite-1包覆亚纳米双金属Pd-M(OH)_2(M=Ni,Co)的催化剂。球差校正透射电镜测试结果表明,双金属Pd-Ni(OH)_2具有亚纳米尺寸,并限域在Silicalite-1分子筛的十元环交叉孔道。 | Qiming Sun Ning Wang Qiming Bing Rui Si Jingyao Liu Risheng Bai Peng Zhang Mingjun Jia 于吉红 | 2018 | 科学新闻2018，0，4： | 0 |
| 6 | Anionic Tuning of Zeolite Crystallization显示文摘Zeolites are of great industrial relevance as catalysts,adsorbents,and ion-exchangers and typically synthesized under hydrothermal conditions.Rational regulation of their crystallization process is of great significance for zeolite production.In this work,we systematically investigate the role of anions in tuning zeolite crystallization via anion introduction including SO_(4)^(2−),F^(−),Cl^(−),Br^(−),I^(−),and SCN^(−) in the sodium form into the SiO2-TPAOH-H2O[tetrapropylammonium hydroxide(TPAOH)]synthetic system of silicalite-1 zeolite. | Chang Sun Zhiqiang Liu Shuang Wang Hao Pang Risheng Bai Qifei Wang Wei Chen Anmin Zheng Wenfu Yan Jihong Yu | 2021 | CCS Chemistry2021，3，12： | 0 |
| 7 | Defect engineering for high-selection-performance of N_(2) activation over CeO_(2)(111) surface显示文摘Nitrogen reduction reactions(NRR) under room conditions remain the challenge for N_(2)activation on metal-based catalysis materials. Herein, the M-doped CeO_(2)(111)(M = Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu and Zn) with oxygen vacancies, are systematically investigated by spin-polarized DFT + U calculations.We discuss briefly the situation of OVs on pure and reduced cerium, and we found that(1) doping TMs can promote the formation of oxygen defects, apart from Ti and V-dopant,(2) the O atoms are easier to escape connecting to M atoms than the ones of adjacent atoms connecting to the Ce(111), the value of OVs formation energies decrease as the TMs radius decrease. Also, our computational results show that Cr-doped, Mn-doped, Fe-doped, and Co-doped CeO_(2)(111) adsorbs N;strongly than the stoichiometric surface and other M-doped CeO_(2)surfaces with adsorption energies of-0.82,-1.02,-0.83 and-1.05 e V.Through COHP analysis, it is found that the predicted active sites have good catalytic performance. | Fang Yuan Risheng Sun Ling Fu Guozheng Zhao | 2022 | Chinese Chemical Letters2022，33，4： | 0 |
| 8 | Donald V.Helmberger,the master mentor:Testimonials from former international students显示文摘Don trained many Ph.D.students over the〜5 decades of his career,at least 45 were advised or co-advised according to a Caltech account.A large number were international students including a high percentage of Chinese students.The contributors to this article graduated over a time span of 26 years,and we are now distributed in 6 countries across 14 time zones,yet we represent only a small fraction of his former students and postdocs. | Xiaodong Song Sidao Ni Ying Tan Alex Song Risheng Chu Daoyuan Sun Shengji Wei Semechah Lui Voon Hui Lai | 2022 | Earthquake Science2022，35，1： | 0 |
| 9 | Flower-like tin oxide membranes with robust three-dimensional channels for efficient removal of iron ions from hydrogen peroxide显示文摘Membrane technology has become the mainstream process for the production of electronic grade hydrogen peroxide(H_(2)O_(2)).But due to the oxidation degradation of the organic membranes(e.g.polyamide)by the strong oxidative radicals(e.g.OH)generated via the activation of H_(2)O_(2)by iron ions(Fe^(3+)),the short effective lifetime of membranes remains a challenge.Inorganic nano tin oxide(SnO_(2))has great potential for the removal of Fe^(3+)in strongly oxidative H_(2)O_(2)because of its ability to stabilize H2O_(2)and preferentially adsorb Fe^(3+).Herein,we have designed for the first time a flower-like robust SnO_(2)membrane on the ceramic support by in situ template-free one-step hydrothermal method.The three-dimensional loose pore structure in the membrane built by interlacing SnO_(2)nanosheets endows the SnO_(2)membrane with a high specific surface area and abundant adsorption sites(AOH).Based on the coordination complexation and electrostatic attraction between the SnO_(2)surface and Fe^(3+),the membrane shows a high Fe3+removal efficiency(83%)and permeability(24 L·m^(-2)·h^(-1)·MPa^(-1))in H_(2)O_(2).This study provides an innovative and simple approach to designing robust SnO_(2)membranes for highly efficient removal of Fe^(3+)in harsh environments,such as strong oxidation conditions. | Risheng Shen Shilong Li Yuqing Sun Yuan Bai Jian Lu Wenheng Jing | 2024 | Chinese Journal of Chemical Engineering2024，65，1： | 0 |
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