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| 1 | Laser probe ^(40)Ar/^(39)Ar dating of mica on the deformed rocks from Altyn Fault and its tectonic implications,western China显示文摘The samples of Caledonian mylonitized granite and Jurassic meta-sedimentary rocks were collected in the north of Dangjinshan Pass, Qaidam gate fault-valley and Gesi fault-valley. Detailed studies under the microscope and electronic microscope suggest that all the samples contain the syntectonic-growing minerals such as white mica, chlorite, sericite, biotite, etc. By dating these minerals, we got a group of 40Ar/39Ar laser probe isochronal ages of 89-92 Ma and apparent ages of (46.6±6.4) Ma. The ages ranging from 97 to 46 Ma were reported for the first time in the isotopic dating researches of the Altyn Fault The isochronal age group of (98-89) Ma indicates that a ductile strike-slip event, with low-grade metamorphism, began in late Cretaceous. This suggests that the strike-slip movement of the Altyn Fault should be related to the formation of the so-called west tectonic syntaxis in the Nepal-western Kunlun area. | LIU Yongjiang, YE Huiwen, GE Xiaohong, CHEN Wen, LIU Junlai, REN Shoumai & PAN HongxunCollege of Earth Sciences, Changchun University of Science and Technology, Changchun 130061, China Graduate School, China University of Geosciences, Beijing 100083, China Laboratory of Isotopic Geochronology, Institute of Geology, Ministry of Land and Resources of China, Beijing 100037, China | 2001 | Chinese Science Bulletin2001,46,4: | 16 |
| 2 | Endovascular therapy for Acute ischemic Stroke Trial (EAST): study protocol for a prospective, multicentre control trial in China显示文摘Background and purpose:5 recent trials have shown the benefit of endovascular treatment for acute ischaemic stroke(AIS)due to large vessel occlusion of the anterior circulation.This study aims to evaluate the safety and efficacy of Solitaire thrombectomy in patients with moderate-to-severe stroke in the Chinese population,which has a high prevalence of intracranial atherosclerosis.Methods and analysis:This multicentre prospective control study will involve 17 stroke centres in China,and plans to recruit 150 patients in the intervention group,and 150 patients in the medical group,in which patients meet enrolment criteria but refuse intervention.Patients with AIS due to large vessel occlusion indicated for treatment with Solitaire stent retriever within 12 hours of symptom onset,and who meet the inclusion and exclusion criteria,will be enrolled in this study.The primary efficacy endpoint is functional independence as defined by a modified Rankin Scale(mRS)score≤2 at 90 days or by functional improvement as defined by mRS,using shift analysis.The procedural efficacy endpoint is arterial recanalisation of the occluded target vessel measured by a modified Thrombolysis in Cerebral Infarction(mTICI)score equal or superior to 2b right following the use of the study device.The primary safety endpoint is symptomatic intracranial haemorrhage(sICH)within 24±3 hours postprocedure.Ethics and dissemination:The protocol was approved by the Ethics Committee at the coordinating centre and by the local Institutional Review Board of each participating centre.Trial registration number:NCT02350283. | Zhongrong Miao Xiaochuan Huo Feng Gao Xiaoling Liao Chunjuan Wang Ya Peng Yibin Cao Shengli Chen Meng Zhang Changchun Jiang Xiaoxiang Peng Cunfeng Song Liping Wei Qiyi Zhu Zaiyu Guo Li Liu Hang Lin Hua Yang Wei Wu Hui Liang Anding Xu Kangning Chen Xingquan Zhao Yuesong Pan Hao Li Liping Liu Yilong Wang Yongjun Wang EAST investigators | 2016 | Stroke & Vascular Neurology2016,1,2: | 8 |
| 3 | Chemical kinetics study of hydrocarbon regeneration from organic matter in carbonate source rocks and its significance显示文摘In the comparison research of hydrocarbon regeneration, a low maturity carbonate source rock is heated to different temperatures in a gold tube to obtain a series of samples with different maturities. Then, the heated samples, before and after extraction, are subjected to Rock-Eval pyrolysis through a thermal simulation of hydrocarbon regeneration in order to inspect pyrolysis characteristics and probe into the characteristics of the chemical kinetics of each sample. The results indicate that, whether hy- drocarbon regeneration peak is delayed or advanced, the potential of hydrocarbon regeneration is closely related to the expulsion amount and breakdown maturity of primary hydrocarbon generation. After extraction, the average activation energy of artificially maturated samples increases with the in- creasing maturity, but the chemical kinetic properties of un-extracted samples decrease. The calibrated chemical kinetic models that describe extracted and un-extracted samples are applied to the Bohai Bay and the Songliao Basin, and the results indicate that the combination of the two models can explain some contradictory conclusions previously reported. These results also facilitate the quantitative evaluation of the amount of hydrocarbon regeneration by the chemical kinetic method. | LU ShuangFang ZHONG NingNing XUE HaiTao PAN ChangChun LI JiJun LI HongTao | 2007 | Science China Earth Sciences2007,50,4: | 8 |
| 4 | Sequential extraction and compositional analysis of oil-bearing fluid inclusions in reservoir rocks from Kuche Depression, Tarim Basin显示文摘The free oils, adsorbed oils and oil-bearing fluid inclusions have been extracted separately and analyzed by GC and GC-MS in reservoir rock samples collected from the Kuche Depression. The results demonstrate that the molecular compositions of oil-bearing fluid inclusions are significantly different from those of the free oils (the current oils). Compared with the current oil, the oil-bearing fluid inclusions are characterized by relatively high values of parameters Pr/nC17 and Ph/nC18, low values of Pr/Ph, hopanes/steranes, C30-diahopane/C30-hopane and Ts/Tm, low content of C29Ts terpane and high maturities as indicated by C29 steranes 20S/(20R+20S). In addition, the oil-bearing fluid inclusions correlate very well with the oils in northern and central Tarim Basin, which were derived from Cambrian-Ordovician marine source rocks. The adsorbed oils appear to be an intermediate type between free oils and oil-bearing fluid inclusions. The above analytical data indicate that there are at least two | PAN Changchun FU Jiamo SHENG Guoying | 2000 | Chinese Science Bulletin2000,45,S1: | 6 |
| 5 | Adaptive changes of gastro-entero-pancreatic system endocrine cells in the black-spotted pond frog Rana nigromaculata after fasting显示文摘Changes in distribution density,morphology and secretory content of endocrine cells in the gastro-entero-pancreatic system of black-spotted frogs Rana nigromaculata before and after fasting were investigated using immunohistochemistry and antisera to six gut hormones.Six types of endocrine cells were detected in the digestive tract of Rana nigromaculata,including 5-hydroxytryptamine(5-HT),gastrin(GAS),somatostatin(SOM),glucagon(GLU),pancreatic polypeptide(PP)and vasoactive intestinal polypeptide(VIP)cells.After fasting,the density of 5-HT cells in the esophagus,cardia and fundus,GAS cells in the fundus and pylorus,PP cells in the fundus decreased significantly(P<0.01),while SOM cells in the cardia,GLU cells in the rectum increased significantly(P<0.01).The cytoplasmic processes of 5-HT cells became shorter or not detectable.The secretory content of GAS cells reduced in the cardia.The positive immunostaining reaction in the perinuclear region of SOM cells in the cardia,fundus and pylorus became weaker,while the staining intensity in the periphery of these cells became stronger.VIP cells were not detectable in the whole digestive tract after fasting.Five types of endocrine cells were found in the pancreas of Rana nigromaculata,including 5-HT,GAS,SOM,GLU and PP cells.After fasting,the density of 5-HT cells decreased slightly(P>0.05),while SOM,GAS,GLU and PP cells increased significantly(P<0.01).Furthermore,the secretory content of GLU cells increased significantly.Considering their functionalities,our results indicate that the changes of GEP endocrine cells in Rana nigromaculata responded adaptively to starvation-induced stress. | Hongzhen PAN Honghong CHEN Lianjiu ZHU Yang LI Changchun LI Shengzhou ZHANG | 2009 | Current Zoology2009,55,4: | 4 |
| 6 | Theoretical studies on Ru(fppz)_2(CO)L (L=N-heterocyclic ligand):Electronic structure,absorption,phosphorescence,and solvatochromism显示文摘A series of ruthenium(II) complexes Ru(fppz)2(CO)L [fppz = 3-trifluoromethyl-5(2-pyridyl)pyrazole; L = pyridine (1), 4-dimethylaminopyridine (2), 4-cyanopyridine (3)] were designed and investigated theo-retically to explore their electronic structures, absorption, and emissions as well as the solvatochrom-ism. The singlet ground state and triplet excited state geometries were fully optimized at the B3LYP/LANL2DZ and CIS/LANL2DZ level, respectively. The HOMO of 1-3 is composed of dyz(Ru) atom and π(fppz). The LUMO of 1 and 2 is dominantly contributed by π*(fppz) orbital, but that of 3 is con-tributed by π*(L). Absorption and phosphorescence in vacuo, C6H12, and CH3CN media were calculated using the TD-DFT level of theory with the PCM model based on the optimized ground and excited state geometries, respectively. The lowest-lying absorption of 1 and 2 at 387 and 391 nm is attributed to {[dyz(Ru) + π(fppz)] → [π*(fppz)]} transition, but that of 3 at 479 nm is assigned to {[dyz(Ru) + π(fppz)] → [π*(L)]} transition. The phosphorescence of 1 and 2 at 436 and 438 nm originates from 3{[dyz(Ru) + π(fppz)] [π*(fppz)]} excited state, while that of 3 at 606 nm is from 3{[dyz(Ru) + π(fppz)] [π*(L)]} excited state. The calculation results showed that the absorption and emission transition character can be changed from MLCT/ILCT to MLCT/LLCT transition by altering the substituent on the L ligand. The phosphorescence of 1 and 2 does not have solvatochromism, but that of 3 at 606 nm (vacuo), 584 nm (C6H12), and 541 nm (CH3CN) is strongly dependent on the solvent polarity, so introducing elec-tron-withdrawing group on ligand L will induce remarkable solvatochromism. | LIU Tao1, ZHOU Xin1, BAI FuQuan1, ZHANG JianPo1, XIA BaoHui1,2, PAN QingJiang3 & ZHANG HongXing1 1 State Key Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, China 2 College of Chemistry, Jilin University, Changchun 130023, China 3 Laboratory of Physical Chemistry, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China | 2008 | Science China Chemistry2008,51,12: | 4 |
| 7 | Intramolecular O-Sn coordination in (Z)-1-(triphenylstannyl)-3-phenyl-1-buten-3-ol: Evidence by X-ray diffracation analysis and bromination显示文摘The synthesis and properties of (Z)-1-(triphenylstannyl)-3-phenyl-1-buten-3-ol (1) are described. Compound 1 crystallizes from alcohol in the monoclinic space group P21/c with unit-cell dimensions a=9.296(2), 6=14.081(3), c=18.390(5) A,B=97.70(2), V=2385.5(1) A3, Z=4, F(000)=1008, Dc=1.38 g.cm-3,u=10.88 cm-1, final R=0.0359 for 3079 observed reflection [I > 3(I)]. The X-ray diffraction analysis of this compound shows the presence of an intramolecular coordination to the tin atom giving rise to a five-membered ring in which the metal exhibits a distroted trignoal bipyramidal geometry; as a consequence, a phenyl group, probably the apical one, is cleaved more easily by bromine than the vinyl substituent. | FU, Fang-Xin FU, Yu-Jie ZHU, Dong-Sheng FANG, Qun-Xin PAN, Hua-DeChemistry Department, Northeast Normal University, Changchun, Jilin 130024, ChinaLIN, Yong-Hua JIN, Song-Chun Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun, Jilin 130022, China | 1994 | Chinese Journal of Chemistry1994,12,4: | 3 |
| 8 | CSF-Based Analysis for Identification of Potential Serum Biomarkers of Neural Tube Defects显示文摘The protein composition of cerebrospinal fluid(CSF) in neural tube defects(NTDs) remains unknown. We investigated the protein composition of CSF from 9 infants with NTDs using isobaric tags for relative and absolute quantitation(iTRAQ). We identified 568 proteins in the CSF of infants with spina bifida, which is the most common type of NTD. Among these, 18 proteins were associated with neural tube closure in the CSF during human embryonic neurulation and 5 were involved in NTDs. Based on these results, an animal model was further utilized to investigate early serum biomarkers for NTDs.We found that the myristoylated alanine-rich C-kinase substrate, Kunitz-type protease inhibitor 2, andapolipoprotein B-100 protein levels were decreased in both embryos and the sera of pregnant Sprague-Dawley rats carrying embryos with NTDs. CSF proteins may be useful in the discovery of potential serum biomarkers for NTDs. | Xinyu Yan Lixin Mai Changchun Lin Wenji He Gengsheng Yin Jiakang Yu Lian Huang Sanqiang Pan | 2017 | Neuroscience Bulletin2017,33,4: | 3 |
| 9 | Research on a Visual Servo Method of a Manipulator Based on Velocity Feedforward显示文摘In this paper,a method of predicting the motion state of a moving target in the base coordinate system by hand-eye vision and the position and attitude of the end is proposed.The predicted value is used as the velocity feedforward,and the position-based visual servo method is used to plan the velocity of the end of the manipulator.It overcomes the influence of end coordinate system motion on target prediction in a discrete system and introduces an integral control method to compensate for the prediction velocity,eliminating the end tracking error caused by target velocity prediction error.The effectiveness of this method is verified by simulation and experiment. | Rui Wang Changchun Liang Dong Pan Xiaodong Zhang Pengfei Xin Xiaodong Du | 2021 | Space(Science & Technology)2021,,1: | 3 |
| 10 | DFT and TDDFT investigations on the ground and excited states for polynuclear platinum(II) complexes containing the rigid phenylacetylide ligand显示文摘We have studied the ground and excited states of the three dendritic polynuclear Pt(II) complexes 1-[Cl(PH3)2PtC≡≡ C]-3,5-[HC≡≡ C]C6H3 (1), 1,3-[Cl(PH3)2PtC≡≡ C]2-5-[HC≡≡ C]C6H3 (2), and 1,3,5-[Cl(PH3)2- PtC≡≡ C]3C6H3 (3), by using the B3LYP and UB3LYP methods, respectively. TDDFT approach with the PCM model was performed to predict the emission spectra properties of 1―3 in CH2Cl2 solution. We first predicted the excited-state geometries for the three complexes. With the change of the number of Pt(II) atom, 1―3 show the different geometry structures in both the ground and excited states; fur- thermore, the increase of the metal density from 1 to 3 results in the red shift of the lowest-energy emissions along the series. The luminescent properties of 1 are somewhat different from those of 2 and 3. The emission properties of 2 and 3 are richer than 1. Our conclusion can give a good support for designing the high efficient luminescent materials. | ZHOU Xin1, PAN QingJiang2, LI MingXia1,2, ZHANG HongXing1 & Tang AuChin1 1 State Key Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, China 2 School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China | 2007 | Science China Chemistry2007,50,5: | 2 |
| 11 | An Early Stage Faulting Along the Altun Mountain Range——Microstructural Evidences显示文摘Structural, microstructural analysis is done on the Altun fault zo ne and fault rocks. The major characteristics of faulting are summarized. Micros tructural observation reveals a complicated evolution of the fault zone. Much at tention is paid to the microstructural observation and dynamic analysis of fault ing. The occurrence of phengite grains suggest abnormally high pressure conditio ns during ductile deformation and metamorphism, while the occurrence of muscovit e-chlorite mineral assemblage suggest a low temperature and low pressure condit i on. Micro-component analysis on the inter-grown muscovite and chlorite grains gives similar information. It is concluded that the first deformation along the Altun fault zone is a type of ductile shearing, forming mylonites and mylonitic rocks along the fault zone. A post-Jurassic deformation is primarily suggested by the involvement of the l atest tectonic units (Jurassic) in the ductile deformation.The early tectonic ev ent involves deformation and metamorphism under conditions in the upper crust, w ith T-P conditions varying to a large extent (T-270℃ ~350℃; P-0.005GPa~0. 43GPa), which may be attributed to the extra tectonic stresses. | Liu Junlai, Pan Hongxun, Ye Huiwen, Ge Xiaohong and Liu Yongjiang (Changchun Univ. Sci & Tech., 130026, Changchun, China) | 1999 | Global Geology1999,4,2: | 2 |
| 12 | Characterization and Catalytic Activity of Titanium-containing Aluminum Phosphate Prepared by Sol-gel and Nonuniform Precipitation for O-Alkylation of Catechol with Ethanol显示文摘Three titanium-containing aluminum phosphate catalysts with a general formula Al 0.77 Ti 0.23 PO 4 were prepared by the sol-gel method at room temperature(APTS), and a nonuniform precipitation procedure at room temperature(APTR) and under reflux(APTF), respectively. The structural features and the surface properties of the three catalysts were determined by means of the physical adsorption of nitrogen at liquid N 2 temperature, XRD, UV-Vis, NH 3-TPD and IR of adsorbed pyridine. The vapor phase O-alkylation of catechol with ethanol over the prepared catalysts was studied. It was found that the activity and the selectivity of these catalysts are greatly dependent on the preparation method, and catalyst APTF shows the highest activity and selectivity. The characterization evidence indicates that the weak Brnsted acid sites were more effective for the reaction. | PAN Chun-liu, ZHANG Wen-xiang ** , LI Xue-mei, JIANG Da-zhen and WU Tong-hao College of Chemistry, Jilin University, Changchun 130023, P. R. China | 2003 | Chemical Research in Chinese Universities2003,19,3: | 2 |
| 13 | Kerogen Pyrolysis in the Presence and Absence of Water and Minerals:Amounts and Compositions of Bitumen and Liquid Hydrocarbons显示文摘 | Pan Changchun Geng Ansong Zhong Ningning | 2009 | Fuel2009,88,: | 1 |
| 14 | The effectsof calcite and montmorillonite on oil cracking in confined py-rolysis experiments显示文摘 | Pan Changchun Jiang Lanlan Liu Jinzhong | 2010 | Original Research Article OrganicGeochemistry2010,41,7: | 1 |
| 15 | The Synthesis and Structural Characterization of Two-dimensional Coordination Polymer {[Ni(phen)H_2O](μ_4-C_( 10)H_2O_8)_(1/2)}_n显示文摘 | YE Ling 1, PAN Cheng-ling 2, CHU De-qing 2, WANG Li-min 3, MU Zhong-cheng 3 and XU Ji-qing 2*1. Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, Jilin University, Changchun 130023, P. R. China2. College of Chemistry, Jilin University, Changchun 130023, P. R. China3. Department of Chemistry, Northeast Normal University, Changchun 130024, P. R. China | 2002 | Chemical Research in Chinese Universities2002,18,4: | 1 |
| 16 | Geochemical characteristics and implication of hydrocarbon in reservoir rocks of Junggar basin, China 显示文摘 | Pan Changchun Yang Jianqian | 2000 | Chemical Geology2000,167,: | 1 |
| 17 | Influence of mixing, oxygen and residence time on the SNCR process显示文摘 | Ling Liang Shien Hui Su Pan Tong Shang Changchun Liu Denghui Wang | 2014 | Fuel2014,,: | 1 |
| 18 | Chemical and carbon isotopic fractionations of gaseous hydrocarbons during abiogenic oxidation显示文摘 | Pan Changchun Yu Linping Liu Jinzhong | 2006 | Earth and Planetary Science Letters2006,246,: | 1 |
| 19 | Chemical and carbon isotopic fractionations of gaseous hydrocarbons during abiogenic oxidation显示文摘 | Pan Changchun Yu Linping Liu Jinzhong | 2006 | Earth and Planetary Science Letters2006,246,12: | 1 |
| 20 | New Application of bond Function Basis Sets──ab initio Calculations of Nonlinear Optical Properties 显示文摘NewApplicationofbondFunctionBasisSets──abinitioCalculationsofNonlinearOpticalPropertiesofCh_(4-n)F_n(n=1,2,3)LiZhi-ru,TAOFu-mi... | Li Zhi-ru, TAO Fu-ming, PAN Yuh-kang., FENG Ji-kang, WU Di., HUANG Xu-rid , SUN Ghia-Chung.(Department of Chemistry, Jilin University, Changchun, 130023 , CAina b $$Department of Chemistry, Harvard University, Chmberidge,MA 02138 , USA/Department of Chem | 1997 | Chemical Research in Chinese Universities1997,13,3: | 1 |