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53篇 您的检索式:作者名="Jiang Linhua"
    题名 作者 年代 出处 被引量
1A submillimeter observation and study of star-forming regions显示文摘Using the 3-m radio telescope of KOSMA, we mapped 12CO (J = 3-2) lines for three molecular clouds, B35, S146 and TMC-2A. High-velocity molecular outflows are found in all these regions. The physical and dynamical pa-rameters of the outflows are derived, and their shapes and driving sources are analyzed. Contour maps of center veloci-ties show that the large scale systematic gradients exist in the three clouds. These observed motions are best explained by rotation after excluding the cause of outflows. Furthermore, in the core region of TMC-2A there is a velocity gradient in opposite direction from that of the large scale. It may be caused by magnetic braking. Finally, angular velocities of the clouds are calculated, and the effects of rotation against gravity and lowering the star-formation rate are also ana-lyzed.JIANG Linhua, WU Yuefang & M. MillerDepartment of Astronomy, Peking University, Beijing 100871, China Chinese Academy of Sciences-Peking University Joint Beijing Astrophysics Center, Beijing 100871, China I. Physikalisches Institut, Zulpicher Str 2002Chinese Science Bulletin2002,47,1:8
2Catalytic oxidative desulfurization of fuels in acidic deep eutectic solvents with [(C_6H_(13))_3P(C_(14)H_(29))]_3PMo_(12)O_(40) as a catalyst显示文摘Deep eutectic solvents(DESs) are a new class of green solvents analogous to ionic liquids due to their biodegradable capacity and low cost. However, the direct extractive desulfurization of diesel oil by DESs cannot meet the government's standard. In this work, amphiphilic polyoxometalates were synthesized and characterized by FT-IR and mass spectrometry.The oxidative desulfurization results showed that benzothiophene(BT) could be completely removed by employing a [(C_6H_(13))_3P(C_(14)H_(29))]_3PMo_(12)O_(40), DES(ChCl/2 Ac) and H_2O_2 system. It was also found that the organic cation of catalysts played a positive role in oxidative desulfurization. The reaction conditions, such as reaction temperature and time, the amount of catalyst and DES and H_2O_2/S(O/S) molar ratio, were optimized. Different sulfides were tested to determine the desulfurization selectivity of the optimal reaction system, and it was found that 97.2% of dibenzothiophene(DBT) could be removed followed by 80.7% of 4-MDBT and 76.0% of 4,6-DMDBT. After reaction, the IR spectra showed that the catalyst [(C_6H_(13))_3P(C_(14)H_(29))]_3PMo_(12)O_(40) was stable during the reaction process and the oxidative product was dibenzothiophene sulfone(DBTO_2). Furthermore, the catalyst can be regenerated and recycled for four runs with little loss of activity.Wei Jiang Hao Jia Zhanglong Zheng Linhua Zhu Lei Dong Wei Liu Wenshuai Zhu Huaming Li 2018Petroleum Science2018,15,4:6
3Interpretation of the Traditional Chinese Medicine portion of the diagnosis and treatment protocol for corona virus disease 2019(Trial Version 7)显示文摘The TCM protocol in the Diagnosis and Treatment Protocol for corona virus disease 2019(COVID-19)(Trial Version 7) has been updated from previous versions. The protocol was formulated under the direct leadership of the National Administration of Traditional Chinese Medicine, based on the experience of a panel of experts, supported by evidence from fever clinics and from the outcomes of emergency(EM) observation rooms and inpatients throughout China(especially in Wuhan, Hubei Province) in combination with the latest scientific research results and data. The present interpretation of the TCM protocol is based on an overall understanding of the revised content, and aims to guide and standardize its clinical application to provide a reference for clinicians.Song Ping Zhao Linhua Li Xiuyang Su Jiansen Jiang Zhaoyuan Song Bin Liu Wenke Tang Shuang Lei Ye Ding Qiyou Yang Ze Lin Jiaran Wei Yu Tong Xiaolin 2020Journal of Traditional Chinese Medicine2020,40,3:5
4Influence of shrinkage-reducing admixture on drying shrinkage and mechanical properties of high-performance concrete显示文摘High-performance concrete (HPC) has specific performance advantages over conventional concrete in strength and durability. HPC mixtures are usually produced with water/binder mass ratios (mW/mB) in the range of 0.2-0.4, so volume changes of concrete as a result of drying, chemical reactions, and temperature change cannot be avoided. For these reasons, shrinkage and cracking are frequent phenomena. It is necessary to add some types of admixture for reduction of shrinkage and cracking of HPC. This study used a shrinkage-reducing admixture (SRA) for that purpose. Concrete was prepared with two different mW/mB (0.22 and 0.40) and four different mass fractions of SRA to binder (w(SRA) = 0%, 1%, 2%, and 4%). The mineral admixtures used for concrete mixes were: 25% fly ash (FA) and 25% slag by mass of binder for the mixture with mW/mB = 0.40, and 15% silica fume (SF) and 25% FA for the mixture with mW/mB = 0.22. Tests were conducted on 24 prismatic specimens, and shrinkage strains were measured through 120 days of drying. Compressive strength, splitting strength, and static modulus of elasticity were also determined. The results show that the SRA effectively reduces some mechanical properties of HPC. The reductions in compressive strength, splitting tensile strength, and elastic modulus of the concrete were 7%-24%, 9%-19%, and 5%-12%, respectively, after 90 days, compared to concrete mixtures without SRA. SRA can also help reduce drying shrinkage of concrete. The shrinkage strains of HPC with SRA were only as high as 41% of the average free shrinkage of concrete without SRA after 120 days of drying.Nguyen Quangphu Jiang Linhua Liu Jiaping Tian Qian Do Tienquan 2008Water Science and Engineering2008,1,4:5
5Surface states in TiO2 submicrosphere films and their effect on electron transport显示文摘Li'e Mo Wangchao Chen Ling Jiang Yong Ding Zhaoqian Li Linhua Hu Songyuan Dai 2017Nano Research2017,10,11:3
6Influence of Anion Types on the Electrodeposition Healing Effect of Concrete Cracks显示文摘With the zinc salt and magnesium salt solutions, the influence of anion types on the electrodeposition healing effect of concrete cracks was investigated, four parameters such as rate of weight gain, surface coating, crack closure, and crack filling depth were measured, and the mineral composition and appearance of electrodeposits in the cracks were analyzed. The experimental results demonstrate that the electrodeposition healing effect is the best by adopting ZnSO4 and MgSO4 solutions. The mineral composition of electrodeposits in the cracks does not change with the anion types. The most particles of ZnO crystal appear as fusiform by using zinc salt solutions. If we selected MgSO4 solution, the Mg(OH)2 crystal was porous honeycomb. The electrodeposits present as flake structure while the other magnesium salt solutions were adopted.储洪强 JIANG Linhua XU Ning XIOANG Chuansheng 2012Journal of Wuhan University of Technology(Materials Science)2012,27,6:2
7Electrolytic manganese metal industry experience based China’s new model for cleaner production promotion显示文摘Ning Duan Zhigang Dan Fan Wang Cenxuan Pan Changbo Zhou Linhua Jiang 2011Journal of Cleaner Production2011,,17:2
8A multistep attachment process:Transformation of titanate nanotubes into nanoribbons显示文摘The mechanism of the conversion of titanate nanotubes into nanoribbons is of considerable interest.The details of the transformation processes involved when nanoribbons are produced from a P25 TiO 2 powder precursor by alkaline hydrothermal treatment have been investigated systematically by transmission electron microscopy.A multistep attachment model is proposed for the growth at the early stage of coarsening.The treatment duration has a strong effect on the change in product morphology from hollow nanotubes into nanoribbons,since the nanotubes cannot retain their morphology in the strong alkaline solution for extended periods of time.Most of the nanotubes were etched and dissolved,providing the nutrients for subsequent nanoribbon growth.Some stable nanotubes grew spirally internally to form nanowires or became connected together to form rafts which acted as the grains for nanoribbon growth.With increasing hydrothermal time,a large number of nanotubes and other fragments became attached to the grains which began to grow larger and eventually formed the nanoribbons,in a process in which the stepped faces and kinked faces became fused and were eliminated while the flat faces were retained in the nanoribbon morphology.SHENG Jiang HU LinHua MO Li'E LI WenXin TIAN HuaJun DAI SongYuan 2012Science China Chemistry2012,55,3:2
9Evaluation Research on Applicability of Rapid Iodide Migration Test显示文摘The applicability of the rapid iodide migration test was systematically studied. Comparative experimental tests of different test conditions, including several external voltages, test durations, concrete ages and mixing proportions, were carried out to make clear the transport behaviors of iodide under parallel electric fields. Numerical simulations were also done using the finite element method to found the correlation between chloride and iodide transport behaviors. The test and numerical results show that the chloride transport behaviors of RIM and RCM tests have a good correlation under the several conditions used in the present paper. Moreover, the influence of external conditions(external voltages, test durations) on the test results is small. Thus, it can be concluded that the RIM method is available to determine the chloride penetration resistance of the chloride-eroded structural concrete.宋子健 JIANG Linhua CHU Hongqiang XIONG Chuansheng 2014Journal of Wuhan University of Technology(Materials Science)2014,29,2:1
10Influence of de- tection methods on chloride threshold value for the corrosion of steel reinforcement显示文摘XU Jinxia JIANG Linhua WANG Jingxiang 2009Construction and Building Materi- als2009,23,5:1
11A model for predicting carbonation of high-volume fly ash concrete 显示文摘Jiang Linhua Lin Baoyu Cai Yuebo 2000Cement and Concrete Research2000,30,5:1
12Releases of bound chlorides from chloride-admixed plain and blended cement pastes subjected to sulfate attacks显示文摘XU Jinxia ZHANG Changkuan JIANG Linhua 2013Construction and Building Ma- terials2013,,45:1
13Mapping Domain- and Age-Specific Functional Brain Activity for Children’s Cognitive and Affective Development显示文摘The human brain undergoes rapid development during childhood,with significant improvement in a wide spectrum of cognitive and affective functions.Mapping domain-and age-specific brain activity patterns has important implications for characterizing the development of children’s cognitive and affective functions.The current mainstay of brain templates is primarily derived from structural magnetic resonance imaging(MRI),and thus is not ideal for mapping children’s cognitive and affective brain development.By integrating task-dependent functional MRI data from a large sample of 250 children(aged 7 to 12)across multiple domains and the latest easy-to-use and transparent preprocessing workflow,we here created a set of age-specific brain functional activity maps across four domains:attention,executive function,emotion,and risky decision-making.Moreover,we developed a toolbox named Developmental Brain Functional Activity maps across multiple domains that enables researchers to visualize and download domain-and age-specific brain activity maps for various needs.This toolbox and maps have been released on the Neuroimaging Informatics Tools and Resources Clearinghouse website(http://www.nitrc.org/projects/dbfa).Our study provides domain-and age-specific brain activity maps for future developmental neuroimaging studies in both healthy and clinical populations.Lei Hao Lei Li Menglu Chen Jiahua Xu Min Jiang Yanpei Wang Linhua Jiang Xu Chen Jiang Qiu Shuping Tan Jia-Hong Gao Yong He Sha Tao Qi Dong Shaozheng Qin 2021Neuroscience Bulletin2021,37,6:1
14Direct synthesis and structural characteristics of ordered SBA-15 mesoporous silica显示文摘Hu Linhua Ji Shengfu Jiang Zheng 2007J Phys Chem C2007,111,15:1
15Behavior of concrete triaxial compressive-compressive-tensile stress显示文摘Jiang Linhua Huang Dahai Xie Nianxiang 1991ACI Materials Journal1991,88,2:1
16Influence of N,N'-dimethylaminoethanol as an inhibitor on the chloride threshold level for corrosion of steel reinforcement显示文摘Xu Jinxia Jiang Linhua Xing Feng 2010Mater Corros2010,61,9:1
17Influence of detection methods on chloride threshold value for the corrosion of steel reinforcement显示文摘Xu Jinxia Jiang Linhua Wang Jingxiang 2009Constr Build Mater2009,23,5:1
18Influence of CaCI2 and NaCI from different sources on chloride threshold value for the corrosion of steel reinforcement in concrete显示文摘XU Jinxia JIANG Linhua WANG Weilun 2011Construction and Building Materials2011,25,2:1
19Influence of chloride salt type on threshold level of reinforcement corro- sion in simulated concrete pore solutions显示文摘JIANG Linhua HUANG Guohong XU Jinxia 2012Construction and Building Materials2012,30,5:1
20Relea- ses of bound chlorides from chloride-admixed plain and blen- ded cement pastes subjected to sulfate attacks显示文摘XU Jinxia ZHANG Changkuan JIANG Linhua 2013Construc- tion and Building Materials2013,45,:1
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