|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | New technological partition for “three zones” spontaneous coal combustion in goaf显示文摘On detailed analysis basis of spontaneous coal combustion for the three zones in mine goaf,we use O2 and CO concentrations to divide the three zones of the coal combustion.Through our experiment,we selected a typical working face and focused on the changes in gas concentrations.In order to overcome establishment limitations of actual layout location and underground conditions in a mine goaf,we based our observations on the three zones,combined them with numerical simulation,described the distribution and the changes in O2 and CO concentrations during the coal spontaneous combustion in the goaf,which provided us with an understanding of the distribution of coal spontaneous combustion in the three zones in the form of maps.Essentially,our study summarizes the changes of O2and CO concentrations in the entire goaf and shows them to be in agreement with our observations at the scene.The study shows that it is feasible to divide the three zones,given our comprehensive targets of O2,CO and our numerical simulation.This method avoids the limitation of dividing the three zones with a single target and the likely errors of observations at the scene.In addition,the method offers a basis for optimizing measures of fre-fghting with important and practical effects. | Pan Rongkun Cheng Yuanping Yu Minggao Lu Chang Yang Ke | 2013 | International Journal of Mining Science and Technology2013，23，4： | 20 |
| 2 | A point mutation of PRL gene in pituitary prolactin- secreting adenoma induced by 17-β-estradiol in SD rats显示文摘Animal model bearing pituitary prolactin-secreting adenomas (prolactinoma) induced by 17-β-estradiol (E2) in both eutopic pituitary and ectopic pituitary grafted under the renal capsule was generated. Northern blotting assay indicated that PRL mRNA level in eutopic prolactinomas was higher than that in normal pituitaries and ectopic prolactinomas (P<0.05 - 0.01). By polymerase chain reaction (PCR)-single-strand conformation polymorphism (SSCP) analysis and DNA sequencing, a point mutation from C to A occurring at -36 nt in proximal promoter of rat PRL (rPRL) gene was found only in eutopic prolactinomas. No base change was detected in ectopic prolactinomas. Fusion gene transfection assay in vitro exhibited increased activity of the mutant promoter derived from eutopic prolactinoma (P<0.01). These data suggested that the base change in the proximal promoter of rPRL gene may be associated with hyperexpression of rPRL gene in eutopic prolactinomas. The pathogenesis of eutopic and ectopic prolactinomas | Xuemei Wu Rongkun Xu | 2000 | Chinese Science Bulletin2000，45，5： | 4 |
| 3 | Directivity effect of unloading bedding coal induced fracture evolution and its application显示文摘In the coal mining process, the gas contained in the coalbed is one source of the most serious accident hazards. Stress releasing from the coal deposit is the main controlling factor that leads to such accidents.Based on the bedding of coal samples, the gas permeability well describes the evolution of fracture, so the paper carries out research on the permeability properties of coal under different unloading directions.The research obtains that when the stress unloading direction is perpendicular to bedding, more penetrating fractures and bedding fractures occur, and the permeability significantly increases. Although the axial stress reduced, the confining pressure makes the permeability of the bedding plane fracture exist under constant. The permeability obtained when the unloading direction was perpendicular to the bedding is 52 times larger than that when it is parallel to the bedding. The results show that the efficiency of gas drainage is impacted by the relative direction of gas drainage drilling in relation to the bedding orientations. The maximum amount of gas extraction when drilling is perpendicular to the bedding is 1.3 times than that when drilling is oblique to the bedding, and 1.75 times than that when drilling is parallel to the bedding. | Pan Rongkun Fu Dong Yu Minggao Chen Lei | 2017 | International Journal of Mining Science and Technology2017，27，5： | 3 |
| 4 | ON ALMOST PERIODIC SOLUTIONS TO THIRD-ORDER NEUTRAL DELAY-DIFFERENTIAL EQUATIONS WITH PIECEWISE CONSTANT ARGUMENT显示文摘We present some conditions for the existence and uniqueness of almost periodic solutions to third order neutral delay-differential equations with piecewise constant. | Rongkun Zhuang Hongwu Wu | 2013 | Annals of Differential Equations2013，29，1： | 3 |
| 5 | Experimental investigation of Z-pinch radiation source for indirect drive inertial confinement fusion显示文摘Z-pinch dynamic hohlraums(ZPDHs)could potentially be used to drive inertial confinement fusion targets.Double-or multishell capsules using the technique of volume ignition could exploit the advantages of ZPDHs while tolerating their radiation asymmetry,which would be unacceptable for a central ignition target.In this paper,we review research on Z-pinch implosions and ZPDHs for indirect drive targets at the Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics.The characteristics of double-shell targets and the associated technical requirements are analyzed through a one-dimensional computer code developed from MULTI-IFE.Some key issues regarding the establishment of suitable sources for dynamic hohlraums are introduced,such as soft X-ray power optimization,novel methods for plasma profile modulation,and the use of thin-shell liner implosions to inhibit the generation of prior-stagnated plasma.Finally,shock propagation and radiation characteristics in a ZPDH are presented and discussed,together with some plans for future work. | Zhenghong Li Zhen Wang Rongkun Xu Jianlun Yang Fan Ye Yanyun Chu Zeping Xu Faxin Chen Shijian Meng Jianmin Qi Qinyuan Hu Yi Qin Jiaming Ning Zhanchang Huang Linbo Li Shuqing Jiang | 2019 | Matter and Radiation at Extremes2019，4，4： | 1 |
| 6 | Engineer Nanoscale Defects into Selective Channels:MOF-Enhanced Li^(+) Separation by Porous Layered Double Hydroxide Membrane显示文摘Two-dimensional(2D)membrane-based ion separation technology has been increasingly explored to address the problem of lithium resource shortage,yet it remains a sound challenge to design 2D membranes of high selectivity and permeability for ion separation applications.Zeolitic imidazolate framework functionalized modified layered double hydroxide(ZIF-8@MLDH)composite membranes with high lithium-ion(Li^(+)) permeability and excellent operational stability were obtained in this work by in situ depositing functional ZIF-8 nanoparticles into the nanopores acting as framework defects in MLDH membranes.The defect-rich framework amplified the permeability of Li^(+),and the site-selective growth of ZIF-8 in the framework defects bettered its selectivity.Specifically speaking,the ZIF-8@MLDH membranes featured a high permeation rate of Li^(+) up to 1.73 mol m^(−2) h^(−1) and a desirable selectiv-ity of Li^(+)/Mg^(2+) up to 31.9.Simulations supported that the simultaneously enhanced selectivity and permeability of Li+are attributed to changes in the type of mass transfer channels and the difference in the dehydration capacity of hydrated metal cations when they pass through nanochannels of ZIF-8.This study will inspire the ongoing research of high-performance 2D membranes through the engineering of defects. | Yahua Lu Rongkun Zhou Naixin Wang Yuye Yang Zilong Zheng Miao Zhang Quan-Fu An Jiayin Yuan | 2023 | Nano-Micro Letters2023，15，9： | 1 |
| 7 | Shape-controlled synthesis and assembly of copper sulfide nanoparticles显示文摘 | Xusheng Du Maosong Mo Rongkun Zheng | 2008 | Cryst Crowth Des2008，8，6： | 1 |
| 8 | Oscillation criteria for second-order nonlinear neutral variable delay dynamic equations 显示文摘 | Wu Hongwu Zhuang Rongkun Mathsen R | 2006 | Applied Mathematics and Computation2006，178，2： | 1 |
| 9 | STURM COMPARISON THEOREMS FOR SECOND ORDER NONLINEAR NEUTRAL DIFFERENTIAL EQUATIONS显示文摘In this paper, we first establish some differential inequalities and then some Sturm comparison theorems are derived for the second order neutral nonlinear differential equations. Our results generalize some classical Sturm comparison theorems. | Zhuang Rongkun Zhu Siming | 2006 | Annals of Differential Equations2006，22，2： | 1 |
| 10 | Hexarelin suppresses high lipid diet and vitamin D 3 -induced atherosclerosis in the rat显示文摘 | Jinjiang Pang Qihua Xu Xiangbin Xu Hongchao Yin Rongkun Xu Shu Guo Wei Hao Luya Wang Chen Chen Ji-Min Cao | 2009 | Peptides2009，，4： | 1 |
| 11 | Oscillation criteria for second-order nonlinear neutral variable delay dynamic equations显示文摘 | WU Hongwu ZHANG Rongkun MATHSEN R M | | 0，，： | 1 |
| 12 | ON ALMOST AUTOMORPHIC SOLUTIONS OF THIRD-ORDER NEUTRAL DELAY-DIFFERENTIAL EQUATIONS WITH PIECEWISE CONSTANT ARGUMENT显示文摘We present some conditions for the existence and uniqueness of almost automorphic solutions of third order neutral delay-differential equations with piecewise constant of the form(x(t) + px(t-1))′′′= a0x([t]) + a_1x([t-1]) + f(t),where [·] is the greatest integer function,p,a0 and a1are nonzero constants,and f(t) is almost automorphic. | Rongkun Zhuang Hongwu Wu | 2016 | Annals of Applied Mathematics2016，32，4： | 1 |
| 13 | Diabetes causes decreased osteoclastogenesis, reduced bone formation, and enhanced apoptosis of osteoblastic cells in bacteria stimulated bone loss显示文摘 | Hongbing He Rongkun Liu Tesfahun Desta | 2004 | Endocrinology2004，145，： | 1 |
| 14 | Facile one-pot synthesis of bifunctional heterodimers of nanoparticles:A conjugate of quantum dot and magnetic nanoparticles显示文摘 | Gu Hongwei Zheng Rongkun | 2004 | J Am Chem Soc2004，126，18： | 1 |
| 15 | Advanced glycation end products stimulate osteoblast apoptosis via the MAP kinase and cytosolic apoptotic pathways显示文摘 | Mani Alikhani Zoubin Alikhani Coy Boyd Christine M. MacLellan Markos Raptis Rongkun Liu Nicole Pischon Philip C. Trackman Louis Gerstenfeld Dana T. Graves | 2006 | Bone2006，，2： | 1 |
| 16 | Acrylonitrile-butadiene- styrene terpolymer with metal hypophosphites:flame retardance and mechanism research显示文摘 | Jian Rongkun Chert Li Zhao Bin | 2014 | Industrial & Engineering Chemistry Research2014，53，6： | 1 |
| 17 | Structural, optical and magnetic properties of Co-doped ZnO nanorods with hidden secondary phases显示文摘 | XUEFENG W RONGKUN Z ZONGWEN L HOPUI H JIANBIN X SIMON P R | 2008 | Nanotechnology2008，19，45： | 1 |
| 18 | Experimental investigation of the ribbon-array ablation process显示文摘 | Li Zhenghong Xu Rongkun Chu Yanyun | 2013 | Phys Plasmas2013，20，03： | 1 |
| 19 | Microscopic bonding mechanism of welding interface with molten Cu-4Zn deposited on solid-state steel显示文摘 | WANG Hengzhi WANG Kehong ZHENG Rongkun | 2008 | Materials Characterization2008，59，12： | 1 |
| 20 | Photolabile Protecting Group-Mediated Synthesis of 2-Deoxy-Glycosides显示文摘A green and efficient photolabile protecting group(PPG)-mediated glycosidation approach for the synthesis of 2-deoxy-glycosides is reported.By employing ortho-nitrobenzyl carbonate(oNBC)as PPG,N,N-dimethylformamide(DMF)-modulated SPhosAuNTf_(2)-promoted glycosidation with per-oNBC-protected 2-deoxy-glycosyl ynenoates affords the 2-deoxy-glycosides with moderate to excellentα-selectivities presumably depending on the reactivities of the acceptor alcohols.Based on the PPG-mediated glycosidation approach,oligosaccharides with three to six oNBC groups are effectively achieved.The multiple oNBC groups in the 2-deoxy-glycosides are completely cleaved by irradiation at 365 nm,resulting in the desired 2-deoxy-glycosides in an efficient manner without affecting the common alkyne,alkene,azide functional groups and the traditional protecting groups on the aglycones. | Xiaoqian Li Zhi Ma Rongkun Liu Mattan Hurevich You Yang | 2021 | Chinese Journal of Chemistry2021，39，12： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员