检索结果-南通市图书馆

Safety Improvement and Environment Protection——CNPC's Forever Priority

在线全文

学校读者我要写书评

暂无评论

China Oil & Gas 2011年第3期18卷 55-57页

作者： Song hongchuan PIP

On July 20th, 2011, CNPC＇s annual conference on safety improvement and environment protection was held in *** a company like CNPC, safety improvement and environmental protection is nonetheless the priority and shall never be neglected, said Jiang Jiemin, the present CEO of CNPC. Impressive achievements During the past five years, CNPC has gained brilliant achievements in safety improvement and environment protection： The company has further enhanced its employee＇s awareness to HSE,

关键词：中国石油天然气集团公司安全环境保护保护环境首席执行官优先次序环保公司 HSE

Ultrastable bimetallic Fe_(2)Mo for efficient oxygen reduction reaction in pH-universal applications

在线全文

学校读者我要写书评

暂无评论

Nano Research 2022年第6期15卷 4950-4957页

作者： Jue Hu Chengxu Zhang Mingzi Sun Qianglong Qi Shanxiong Luo hongchuan Song Jingyi Xiao Bolong Huang Michael K.H.Leung Yingjie Zhang The Engineering Laboratory of Advanced Battery and Materials of Yunnan Province Kunming University of Science and TechnologyKunming 650093China Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina School of Energy and Environment Science Yunnan Normal UniversityKunming 650500China Ability R&D Energy Research Centre School of Energy and EnvironmentCity University of Hong KongHong KongChina

Iron-based nanostructures represent an emerging class of catalysts with high electroactivity for oxygen reduction reaction(ORR)in energy storage and conversion ***,current practical applications have been limited by insufficient durability in both alkaline and acidic *** particular,limited attention has been paid to stabilizing iron-based catalysts by introducing additional metal by the alloying ***,we report bimetallic Fe_(2)Mo nanoparticles on N-doped carbon(Fe_(2)Mo/NC)as an efficient and ultra-stable ORR electrocatalyst for the first *** Fe_(2)Mo/NC catalyst shows high selectivity for a four-electron pathway of ORR and remarkable electrocatalytic activity with high kinetics current density and half-wave potential as well as low Tafel slope in both acidic and alkaline *** demonstrates excellent long-term durability with no activity loss even after 10,000 potential *** functional theory(DFT)calculations have confirmed the modulated electronic structure of formed Fe_(2)Mo,which supports the electron-rich structure for the ORR ***,the mutual protection between Fe and Mo sites guarantees efficient electron transfer and long-term stability,especially under the alkaline *** work has supplied an effective strategy to solve the dilemma between high electroactivity and long-term durability for the Fe-based electrocatalysts,which opens a new direction of developing novel electrocatalyst systems for future research.

关键词： oxygen reduction reaction Fe2Mo bimetallic nanoparticles zeolitic imidazolate frameworks(ZIFs) ultralong stability superior oxygen reduction reaction(ORR)performance

Chinese Paper Cut Appears in Western Modern Dance

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China & The World Cultural Exchange 2007年第6期73卷 30-31页

作者： Wang hongchuan

Modern dance "Hunting for Nora", adapted from the great drama "A Doll's House" by Henrik Ibsen, 19-century Norwegian playwright and performed by Theatre Ibsen at Beijing International Dance Season last December, fascinated the audience with its novel stage setting featuring Chinese paper cut. This bold innovation to integrate Chinese folk art with Western avant-garde dance drama has proved to be a big success, with strong visual appeals and fresh cultural significance. The 27 huge paper cuttings for the stage setting, designed by Qiao Xiaoguang, professor with the Central Art Academy of China, has been collected by Theatre Ibsen, and the paper-cut portrait of Ibsen he created has been permanently displayed in the theatre.

关键词：中国剪纸艺术西方现代舞蹈

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

波路径偏移压制层间多次波的理论与应用

地球物理学报 2008年第2期51卷 589-595页

作者：刘伊克常旭王辉卢孟夏 hongchuan Sun 中国科学院地质与地球物理研究所中国科学院工程地质力学重点试验室北京100029 北京联合大学北京100101 Department of Geology and Geophysics University of UtahUtah 84112U．S．A．

消除层间多次波是地震勘探资料处理研究领域的难题,尤其对于实际资料的处理,到目前为止还很难找到一种完全有效的方法.本文给出了仅对一次波成像既波路径偏移方法压制层间多次波方法,在共炮道集和共检波点道集分别计算炮点射线的入射角... 详细信息

消除层间多次波是地震勘探资料处理研究领域的难题,尤其对于实际资料的处理,到目前为止还很难找到一种完全有效的方法.本文给出了仅对一次波成像既波路径偏移方法压制层间多次波方法,在共炮道集和共检波点道集分别计算炮点射线的入射角和检波点射线的出射角,由此计算的角度作为射线追踪的初始角度,计算地震波射线的传播路径.结合由程函方程计算的走时表,判断偏移范围是反射波还是多次波.在前期偏移过程压制多次波的理论研究基础上,本文主要研究波路径偏移消除多次波的应用部分.为了进一步说明效果的有效性,计算了在单炮和共成像点道集压制层间多次波,给出了实际资料的压制多次波的偏移结果.

关键词：层间多次波压制多次波波路径偏移

Boosting the Ni-Zn interplay via O/N dual coordination for high-efficiency CO_(2) electroreduction

在线全文

学校读者我要写书评

暂无评论

Carbon Energy 2023年第4期5卷 68-80页

作者： Ying Zhang Hailei Jiang Anuj Kumar hongchuan Zhang Zongge Li Tongxin Xu Yuan Pan Yaqun Wang Zhiming Liu Guoxin Zhang Zifeng Yan State Key Laboratory of Heavy Oil Processing College of Chemistry and Chemical EngineeringChina University of Petroleum(East China)QingdaoShandongChina Department of Chemistry Institute of Humanities and Applied ScienceGLA UniversityMathuraIndia College of Chemistry and Chemical Engineering Liaocheng UniversityLiaochengShandongChina Al‐Ion Battery Research Center College of Energy Storage TechnologyShandong University of Science and TechnologyQingdaoShandongChina Shandong Engineering Laboratory for Preparation and Application of High‐performance Carbon‐Materials College of Electromechanical EngineeringQingdao University of Science and TechnologyQingdaoShandongChina

Design of supportive atomic sites with a controllably adjusted coordinating environment is essential to advancing the reduction of CO_(2) to value-added fuels and chemicals and to achieving carbon ***,atomic Ni(Zn)sites that are uniquely coordinated with ternary Zn(Ni)/N/O ligands were successfully decorated on formamide-derived porous carbon nanomaterials,possibly forming an atomic structure of Ni(N_(2)O_(1))-Zn(N_(2)O_(1)),as studied by combining X-ray photoelectron spectroscopy and X-ray absorption *** the mediation of additional O coordination,the Ni-Zn dual site induces significantly decreased desorption of molecular *** NiZn-NC decorated with rich Ni(N_(2)O_(1))-Zn(N_(2)O_(1))sites remarkably gained>97%CO Faraday efficiency over a wide potential range of -0.8 to -1.1 V(relative to reversible hydrogen electrode).Density functional theory computations suggest that the N/O dual coordination effectively modulates the electronic structure of the Ni-Zn duplex and optimizes the adsorption and conversion properties of CO_(2) and subsequent *** from the conventional pathway of using Ni as the active site in the Ni-Zn duplex,it is found that the Ni-neighboring Zn sites in the Ni(N_(2)O_(1))-Zn(N_(2)O_(1))coordination showed much lower energy barriers of the CO_(2) protonation step and the subsequent dehydroxylation step.

关键词： atomic dispersion carbon materials CO_(2)reduction formamide metal-nitrogen-carbon

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

目标函数叠前保幅偏移方法与应用

地球物理学报 2006年第4期49卷 1150-1154页

作者：刘伊克常旭卢孟夏 hongchuan Sun 中国科学院地质与地球物理研究所北京100029 北京联合大学信息学院北京100101 Department of Geology and Geophysics University of Utah Utah 84112 U.S.A.

将理论反射率与偏移反射率的差作为目标函数,给出一种迭代振幅补偿保幅偏移方法.把偏移看作一个反问题,寻找反问题中的最优解.偏移算子是正演算子的伴随共轭,其伴随矩阵非对角占优.通过预条件优化伴随矩阵,使Hessian矩阵准对角化.依据... 详细信息

将理论反射率与偏移反射率的差作为目标函数,给出一种迭代振幅补偿保幅偏移方法.把偏移看作一个反问题,寻找反问题中的最优解.偏移算子是正演算子的伴随共轭,其伴随矩阵非对角占优.通过预条件优化伴随矩阵,使Hessian矩阵准对角化.依据地震波传播稳定相位理论,计算反射点,以反射点为中心、菲涅耳带为半径偏移.考虑振幅几何扩散补偿、散射角度补偿,在迭代反演过程求出最优解,即保幅偏移解.本文给出了一个保幅数值模拟结果和一个实际地震数据实例.

关键词：保幅偏移目标函数权函数

Carbon-based nanoarrays embedded with Ce-doped ultrasmall CoP nanoparticles enable efficient electrooxidation of 5-hydroxymethylfurfural coupled with hydrogen production

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2023年

作者： Shangfang Xie hongchuan Fu Liyu Chen Yingwei Li Kui Shen Guangdong Provincial Key Laboratory of Fuel Cell Technology School of Chemistry and Chemical Engineering South China University of Technology

The electrooxidation of 5-hydroxymethylfurfural (HMFOR) not only offers a green route to attain high-value 2,5-furandicarboxylic acid (FDCA) from biomass,but also is considered as a promising approach to replace the kinetically sluggish OER for future hydrogen ***,we report the construction and structural optimization of Ce-doped ultrasmall Co2P nanoparticles (NPs) in carbon-based nanoarrays to boost HER-coupled *** demonstrate that the electronic structure of Co-based electrocatalysts can be positively regulated by Ce doping and the optimized Ce-Co2P-based electrocatalyst only require a low voltage of 1.20 V *** to achieve 10 mA cm-2for HMFOR with an excellent FDCA Faraday efficiency (FEFDCA) of98.5%,which are superior to its Ce-free counterpart (1.29 V ***;FEFDCA=83.9%).When being assembled into a HER-coupled HMFOR system,this bifunctional electrocatalyst can achieve 50 mA cm-2with an ultralow voltage of 1.46 V,which is reduced by 210 m Vas compared with that of its Ce-free counterpart (1.67 V).Quasi-operando experiments and DFTcalculations further reveal the significant roles of Ce doping in promoting the charge transfer between active sites and HMF,and reducing the free energy barrier of intermediate (*HMFCA) *** study provides new insights into the underlying mechanisms of Ce doping into metal phosphides for boosting HER-coupled HMFOR,developing a facile methodology to construct efficient electrocatalysts for energy storage/conversion systems.

关键词：

EGFR TKIs impair lysosome-dependent degradation of SQSTM1 to compromise the effectiveness in lung cancer

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Signal Transduction and Targeted Therapy 2019年第1期4卷 482-492页

作者： Lixian yang Shilong Ying Shiman Hu Xiangtong Zhao Muchun Li Miaoqin Chen Yiran Zhu Ping Song Liyuan Zhu Tingting Jiang Huimin An Neelum Aziz Yousafzai Wenxia Xu Zhiguo Zhang Xian Wang Lifeng Feng hongchuan Jin Laboratory of Cancer Biology Key Lab of Biotherapy in ZhejiangSir Run Run Shaw HospitalMedical School of Zhejiang UniversityHangzhouChina Department of Medical Oncology Key Lab of Biotherapy in ZhejiangSir Run Run Shaw HospitalMedical School of Zhejiang UniversityHangzhouChina Department of Pathology Sir Run Run Shaw HospitalMedical School of Zhejiang UniversityHangzhouChina Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhouChina

Tyrosine kinase inhibitors for epidermal growth factor receptor(EGFR TKIs)greatly improved clinical outcomes of patients with non-small cell lung cancer(NSCLC).Unfortunately,primary and acquired resistance limits their clinical *** overcome such resistance,new generations of EGFR TKIs have been developed by targeting newly identified mutations in ***,much less effort has been put into alternative strategies,such as targeting the intrinsic protective responses to EGFR *** this study,we found that EGFR TKIs,including gefitinib and AZD9291,impaired lysosome-dependent degradation of SQSTM1,thus compromising their anti-cancer *** accumulating in the lysosome lumen,gefitinib and AZD9291 attenuated lysosomal acidification and impaired autolysosomal degradation of SQSTM1 owing to their intrinsic *** a result,SQSTM1 protein was stabilized in response to gefitinib and AZD9291 treatment and conferred EGFR TKI *** SQSTM1 significantly increased the sensitivity of NSCLC cells to gefitinib and AZD9291 both in vitro and in ***,a chemically modified gefitinib analog lacking alkalinity displayed stronger inhibitory effects on NSCLC ***,targeting accumulated SQSTM1 or chemically modified EGFR TKIs may represent new strategies to increase the effectiveness of EGFR targeted therapy.

关键词： impaired protective alkali

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

储热式真空管集热器入射角修正系数的研究

太阳能学报 2000年第1期21卷 62-68页

作者：葛洪川北京市太阳能研究所

在实验测定吸热板表面相对太阳辐照度和涂层太阳吸收比的基础上 ,分析研究了圆柱形吸热体具有圆形和半圆形吸收涂层的真空管集热器 ,在不同管中心距下的入射角修正系数随光线入射角变化的规律。指出对于真空管集热器而言 ,其入射角修正... 详细信息

在实验测定吸热板表面相对太阳辐照度和涂层太阳吸收比的基础上 ,分析研究了圆柱形吸热体具有圆形和半圆形吸收涂层的真空管集热器 ,在不同管中心距下的入射角修正系数随光线入射角变化的规律。指出对于真空管集热器而言 ,其入射角修正系数同时取决于入射高度角和入射方位角 ,并给出入射角修正系数的解析式 ,为进一步研究全日入射角修正系数提供依据。

关键词：太阳辐射储热真空集热管入射角修正系数