检索结果-南通市图书馆

Crystal structure of the C-terminal region of Human p97

在线全文

cnki会议

学校读者我要写书评

暂无评论

Crystal structure of the C-terminal region of Human p97

第十一次中国生物物理学术大会暨第九届全国会员代表大会

作者： Shilong Fan1 ,2,Min Ze Jia 1,Weimin gong 1,2 1 institute of Biophysics,CAS,15 Datun-Road,Chaoyang District,beijing,100101 2 School of Life Sciences,university of Science and technology of china,Hefei, Anhui,230026

＜正＞p97（also known as DAP5）is homologous to the latter two-thirds of eIF4GI and functions as a scaffolding protein,promoting cap-independent translation of *** we present the

关键词： p97 crystal structure MA3 domain eIF4A binding

用PAT研究顺丁硫化胶在热空气中的结构变化

在线全文

cnki会议

学校读者我要写书评

暂无评论

高分子材料科学与工程 1986年第3期 65-71页

作者：龚克成李光吉曹必松郁伟中华南工学院清华大学

本文用正电子湮没技术(PAT)研究了陶土填充顺丁硫化胶(BR)在热空气中老化后的结构变化,分析了正电子湮没特性与硫化胶的交联密度、有序性、空穴大小及其分布。链段活动性等微观结构的关系,探讨了材料的玻璃化转变和大分子网构的变化,证... 详细信息

本文用正电子湮没技术(PAT)研究了陶土填充顺丁硫化胶(BR)在热空气中老化后的结构变化,分析了正电子湮没特性与硫化胶的交联密度、有序性、空穴大小及其分布。链段活动性等微观结构的关系,探讨了材料的玻璃化转变和大分子网构的变化,证明了正电子在顺丁硫化胶中的湮没特性与其表层的自由体积、有序性、T_g转变等有很好的相关性。

关键词：正电子湮没技术热空气正电子轻子 PAT 硫化胶结构变化

河口坝、沿岸坝的形成及成藏机制——以松辽盆地西、南部沉积体系为例

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

新疆石油地质 2004年第6期25卷 592-595页

作者：卫平生王建功潘树新王斌婷中国科学院海洋研究所中国石油石油勘探开发科学研究院西北分院

松辽盆地西、南部沉积体系中部含油组合(青山口组、姚家组)河口坝、沿岸坝较为发育,其单层厚度大、横向迁移分布面积广,由河口坝、沿岸坝形成的厚层底水油气藏是该高砂地比发育区的一种重要的岩性油气藏。从河口坝、沿岸坝的成因、分布... 详细信息

松辽盆地西、南部沉积体系中部含油组合(青山口组、姚家组)河口坝、沿岸坝较为发育,其单层厚度大、横向迁移分布面积广,由河口坝、沿岸坝形成的厚层底水油气藏是该高砂地比发育区的一种重要的岩性油气藏。从河口坝、沿岸坝的成因、分布以及内部结构研究入手,探讨了河口坝、沿岸坝与小断距断层和低幅度构造的成因关系,在分析了河口坝、沿岸坝含油气特征的基础上,探讨了其成藏机理、成藏主控因素以及分布规律,指出了勘探的有利目标区。

关键词：沉积体系河口成藏机制低幅度构造松辽盆地形成成藏机理底水油气藏岩性油气藏主控因素

Imbalance between excitatory and inhibitory synaptic transmission is associated with persistent pain-induced spatial plasticity in the anterior cingulate cortex

在线全文

学校读者我要写书评

暂无评论

Imbalance between excitatory and inhibitory synaptic transmi...

中国神经科学学会第四次会员代表大会暨第八届全国学术会议

作者： Fa-Le CAO~1,Ying HE~2,ke-Rui gong~2,Yan WANG~1,Dong-Liang YUAN~1,Xue-Feng CHEN~1,Rui-Rui WANG~1,Jun CHEN~(1,2,*) 1 institute for Biomedical Sciences of Pain and institute for Functional Brain Disorders,Tangdu Hospital,Fourth Military Medical university,Xi''an 710038,china 2 institute for Biomedical Sciences of Pain,Capital Medical university,beijing 100069,china

＜正＞Objective There is substantial evidence supporting the notion that the anterior cingulate cortex（ACC） is an important limbic structure involved in the affective-emotional component of ***,neuronal and synaptic plasticity occurring within the ACC after injury has been proposed to contribute substantially to the pathophysiogenesis of chronic ***,fewer reports have been conducted to investigate simultaneously spatial and temporal features of synaptic plasticity in the ACC in response to persistent pain at cellular and network *** present study was thus undertaken to evaluate,at the local network level,potential changes in synaptic connection and transmission in the ACC following peripheral persistent nociception in *** and Results An initial probe of underlying mechanisms was also attempted at the cellular *** using multi-electrode array recording coupled with two-dimensional current source density imaging,we found that persistent pain produced enlargement of synaptic connection size in the ACC slices, reflecting increased spatial plasticity by pain,with the temporal plasticity,namely long-term potentiation,being unaffected. Further slice patch clamp recordings on identified ACC neurons demonstrated enhancement of excitatory and impairment of inhibitory synaptic transmission following peripheral persistent nociception,leading to imbalance between the two counterparts in the *** of pre-synaptic components is likely to be responsible for the increased excitatory synaptic drive,while both pre- and post-synaptic alterations account for the loss of *** The present study reveals a unique scenario of enhanced spatial plasticity,but not temporal plasticity,in the ACC area following persistent painful experience,reflecting complexity of brain dysfunction caused by the persistence of painful *** addition,we proposed that disruption of the excitatory-inhibitory balance at the supraspinal/cortical

关键词： persistent nociception anterior cingulate cortex synaptic plasticity multi-electrode array recording slice patch clamp recording

渤中坳陷青东凹陷古近系沙三下亚段构造-古地貌对沉积的控制

在线全文

cnki会议

学校读者我要写书评

暂无评论

石油与天然气地质 2009年第4期30卷 425-430页

作者：李桂范李建平王根照程建春宫诲婕中国地质大学地球科学与资源学院北京100083 中海石油(中国)有限公司天津分公司天津300452

利用地震、测井及录井资料,采用回剥技术及断失量的趋势分析方法,恢复了古近系沙河街组三段下亚段沉积时期青东凹陷的构造-古地貌,并阐明了构造-古地貌对沉积体系的控制。受郯庐断裂及其派生断裂的控制,沙三下亚段沉积时期青东凹陷呈现... 详细信息

利用地震、测井及录井资料,采用回剥技术及断失量的趋势分析方法,恢复了古近系沙河街组三段下亚段沉积时期青东凹陷的构造-古地貌,并阐明了构造-古地貌对沉积体系的控制。受郯庐断裂及其派生断裂的控制,沙三下亚段沉积时期青东凹陷呈现整体沉陷,为一东断西超的箕状断陷。凹中发育3个近东西向的次隆,将青东凹陷分隔为4个次洼,由南至北,次洼的规模逐渐扩大。受构造-古地貌的控制,沙三下亚段青东凹陷的东部发育扇三角洲,西部和南部发育辫状河三角洲,三角洲沉积体系的主体发育部位明显受次洼的控制。由于凹陷规模小,物源供应充分,扇三角洲和辫状河三角洲的砂质沉积不同程度超覆于次隆之上,次隆地带水浅浪强,形成规模不等的砂质滩坝。发育于东部断坡带的三角洲砂体,发育于西部缓坡带的辫状河三角洲砂体,以及发育于次隆地带的砂质滩坝砂体均具有较好的储集条件和较好的圈闭背景,是油气勘探的重要目标。

关键词：沙河街组三段下亚段构造-古地貌古近系青东凹陷渤中坳陷

Crystal structure of the C-terminal Domain of Human Translation Initiation Factor eIF2Bε Subunit

在线全文

学校读者我要写书评

暂无评论

Crystal Structure of the C-terminal Domain of Human Translat...

第十一次中国生物物理学术大会暨第九届全国会员代表大会

作者： Jia Wei1 ,2,Hang Xu 1,cheng Zhang 1,Mingzhu Wang 1,Feng Gao 1,Weimin gong 1,2 1 institute of Biophysics,CAS,15 Datun-Road,Chaoyang District,beijing,100101 2 School of Life Sciences,university of Science and technology of china,Hefei, Anhui,230026

＜正＞Eukaryotic translation initiation factor eIF2B,the guanine nucleotide exchange factor（GEF） for eIF2,catalyzes conversion of eIF2·GDP to eIF2·*** translation initiation can only

关键词： eIF2Bε Subunit crystal structure HEAT repeat AA box

Crystal structure of the C-terminal region of Human p97

在线全文

cnki会议

学校读者我要写书评

暂无评论

生物物理学报 2009年第S1期25卷 328-328页

作者： Shilong Fan1,2, Min Ze Jia1, Weimin gong1,2 1 institute of Biophysics, CAS, 15 Datun-Road, Chaoyang District, beijing, 100101 2 School of Life Sciences, university of Science and technology of china, Hefei, Anhui, 230026

p97 (also known as DAP5) is homologous to the latter two-thirds of eIF4GI and functions

关键词： p97 crystal structure MA3 domain eIF4A binding

structure and superconducting properties of Ru_(1-x)Mo_(x)(x=0.1-0.9)alloys

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2024年第4期33卷 173-179页

作者：付阳龚春生涂志俊田尚杰王守国雷和畅 Department of Physics and beijing key laboratory of Opto-electronic Functional materials&Micro-nano Devices Renmin University of ChinaBeijing 100872China key laboratory of Quantum State Construction and Manipulation Renmin University of ChinaBeijing 100872China Anhui key laboratory of Magnetic Functional materials and Devices School of Materials Science and EngineeringAnhui UniversityHefei 230601China

We report the detailed crystal structures and physical properties of Ru_(1-x)Mo_(x)alloys in the solid solution range of x=*** characterizations indicate that the crystal structure changes from the hcp-Mg-type,toβ-CrFe-type,and then *** measurements of physical properties show that the Ru_(1-x)Mo_(x)samples with x≥0.2are superconductors and the superconducting transition temperature T_c as a function of Mo content exhibits a dome-like behavior.

关键词： superconductivity alloy crystal structures Ru_(1-x)Mo_(x)

Regulating crystal phase of TiO_(2) to enhance catalytic activity of Ni/TiO_(2) for solar-driven dry reforming of methane

在线全文

学校读者我要写书评

暂无评论

燃料化学学报（中英文） 2024年第9期52卷 1203-1213页

作者： HE Zhanjun gong Kun DAI Yuanyuan NIU Qiang LIN Tiejun ZHONG Liangshu key laboratory of Low-Carbon Conversion Science and Engineering Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201210China university of Chinese Academy of Sciences Beijing 100049China National Enterprise technology Center Inner Mongolia Erdos Electric Power and Metallurgy Group Co.LtdOrdos 016064China

Ni/TiO_(2) catalyst is widely employed for photo-driven DRM reaction while the influence of crystal structure of TiO_(2) remains *** this work,the rutile/anatase ratio in supports was successfully controlled by varying the calcination temperature of anatase-TiO_(2).Structural characterizations revealed that a distinct TiO_(x) coating on the Ni nanoparticles(NPs)was evident for Ni/TiO_(2)-700 catalyst due to strong metal-support *** is observed that the TiOx overlayer gradually disappeared as the ratio of rutile/anatase increased,thereby enhancing the exposure of Ni active *** exposed Ni sites enhanced visible light absorption and boosted the dissociation capability of CH4,which led to the much elevated catalytic activity for Ni/TiO_(2)-950 in which rutile ***,the catalytic activity of solar-driven DRM reaction was significantly influenced by the rutile/anatase ***/TiO_(2)-950,characterized by a predominant rutile phase,exhibited the highest DRM reactivity,with remarkable H_(2) and CO production rates reaching as high as 87.4 and 220.2 mmol/(g·h),*** rates were approximately 257 and 130 times higher,respectively,compared to those obtained on Ni/TiO_(2)-700 with *** study suggests that the optimization of crystal structure of TiO_(2) support can effectively enhance the performance of photothermal DRM reaction.

关键词： dry reforming of methane photothermal catalysis crystal phase TiO_(2) metal-support interaction