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| 1 | 云南籼稻每公顷15吨高产的产量及其结构分析显示文摘本文利用 IR72、汕优 63等材料 ,在云南永胜县涛源乡高产环境下 ,对高产品种的产量及其构成因素分析研究表明 ,高产品种的结实率与产量呈极显著的正相关 ,相关系数为 0 .8181;有效穗与穗粒数呈显著负相关。有效穗、穗粒数、结实率和千粒重对产量的直接效应均为正值 ,其中以结实率的影响力最大 ,直接通径系数为 0 .7979。穗数型、大穗型和中间型的品种 (组合 )均能获得 15t/ hm2 的产量 ,但穗粒协调的中间型品种更易获得 15t/ hm2 的高产。云南涛源获得每公顷 15t以上产量就在于在高水平的穗数群体下 ,仍能协调与穗粒数及产量的关系 ,使得粒数和粒重达到相当的水平 ,1996年汕优 63获得 15.2 7t/ hm2产量的产量结构为 ,每平方米穗数 4 89,每穗实粒数 10 1.4 ,千粒重 30 .7g;桂朝 2号获 15.18t/ hm2 的产量结构为每平方米穗数 4 33,每穗实粒数 12 6.2 ,千粒重 2 7. | 袁平荣 孙传清 杨从党 周能 应继峰 S.Peng 王象坤 | 2000 | 作物学报2000，26，6： | 45 |
| 2 | 美国快速推进长壁工作面开采设备发展现状显示文摘介绍了美国现代快速推进长壁工作面与设备发展现状,尤其是进入21世纪的发展情况。美国现代快速推进工作面与设备全国平均发展水平较高,各矿井差距较小;而我国工作面生产与技术装备水平表现为在地质条件优越的矿区达到甚至超过世界先进水平,无论是设备装备还是安全工效方面均取得较高的成就,但是在地质条件较差的矿区或是老矿区,煤矿装备与安全效能与美国还有较大差距。工作面发展水平严重不平衡是我国煤矿与美国煤矿的重要差距,进一步提高工作面装配水平与安全管理水平是我国煤矿发展的重要方向。 | 李西蒙 刘长友 Syd S.Peng | 2016 | 煤炭科学技术2016，44，1： | 17 |
| 3 | Topical areas of research needs in ground control – A state of the art review on coal mine ground control显示文摘Ground control is one of the four subsystems of underground mining. It covers not only roof control, but also rib control, floor control, pillar design, shield design, overburden failures and subsidence. In the past three decades, ground control has made a tremendous advancement and many case studies have demonstrated its important role in the daily mining operations. However, there are plenty of room for improvements. This paper discusses the research needs in 12 subject areas including research approach, rock property, geology, computer modeling, in-situ stresses, roof bolting, coal pillars, field instrumentation,failures, surface subsidence, shield supports and coal bumps. | Syd S.Peng | 2015 | International Journal of Mining Science and Technology2015，25，1： | 9 |
| 4 | Automation in U.S. longwall coal mining: A state-of-the-art review显示文摘This paper reviews the development of U.S. longwall mining from an unknown to became the world standard in the past five decades with emphasis on automation. Large scale longwall face equipment were imported from Germany and United Kingdom to increase production in the 1970 s and great effort was made to improve them to suit U.S. conditions, rather than domestic market. Automation began with the development of electrohydraulic shields in 1984 and continue to present. Introduction of first generation semi-automated longwall system occurred in 1995 and step-to-step improvement continues to present following the development of sensor technology and internet of things(IOT). Since then, emphasis on new development has been concentrated on the improvement of equipment reliability, miner's health and safety as well as production, including dust control techniques, proximity sensor, anti-collision and remote control. Automation is classified into two categories: automation of individual face equipment and automation of longwall system. The automation development of longwall system is divided into three stages: shearer-initiated-shield-advance(SISA), semi-automated longwall system, and remote control shearer. | Syd S.Peng Feng Du Jingyi Cheng Yang Li | 2019 | International Journal of Mining Science and Technology2019，29，2： | 7 |
| 5 | Underground ground control monitoring and interpretation,and numerical modeling, and shield capacity design显示文摘Mine or longwall panel layout is a 3D structure with highly non-uniform stress distribution. Recognition of such fact will facilitate underground problem identification/investigation and solving by numerical modeling through proper model construction. Due to its versatility, numerical modeling is the most popular method for ground control design and problem solving. However numerical modeling results require highly experienced professionals to interpret its validity/applicability to actual mining operations due to complicated mining and geological conditions. Underground ground control monitoring is routinely performed to predict roof behavior such as weighting and weighting interval without matching observation of face mining condition while the mining pressures are being monitored, resulting in unrealistic interpretation of the obtained data on mining pressure. The importance of ground control pressure monitoring and simultaneous observation of mining and geological conditions is illustrated by an example of shield leg pressure monitoring and interpretation in an U.S. longwall coal mine: it was found that the roof strata act like a plate, not an individual block of the size of a shield dimension, as commonly assumed by all researchers and shield capacity is not a fixed property for a longwall panel or a mine or a coal seam. A new mechanism on the interaction between shield's hydraulic leg pressure and roof strata for shield loading is proposed. | Syd S.Peng Jingyi Cheng Feng Du Yuting Xue | 2019 | International Journal of Mining Science and Technology2019，29，1： | 7 |
| 6 | Measurement of overburden failure zones in close-multiple coal seams mining显示文摘In the Kaiping Coal field,mining of five coal seams,located within 80 m in the Kailuan Group,#5,#7,#8,#9 and#12 coal seam,is difficult due to small interburden thickness,concentrated stress distributions,high coal seam metamorphism,and complex geological conditions.By using the ZTR12 geological penetration radar(GPR)survey combined with borehole observations,the overburden caving due to mining of the five coals seams was measured.The development characteristics of full-cover rock fractures after mining were obtained from the GPR scan,which provides a measurement basis for the control of rock strata in close multiple coal seam mining.For the first time,it was found that the overburden caving pattern shows a periodic triangular caved characteristic.Furthermore,it is proposed that an upright triangular collapsed pile masonry and an inverted triangular with larger fragments piled up alternately appear in the lower gob.The research results show that the roof structure formed in the gob area can support the key overlying strata,which is beneficial to ensure the integrity and stability of the upper coal seams in multiple-seam mining of close coal seams. | Yang Li Yuqi Ren Syd S.Peng Haozhou Cheng Nan Wang Junbo Luo | 2021 | International Journal of Mining Science and Technology2021，31，1： | 5 |
| 7 | Change of the mode of failure by interface friction and width-to-height ratio of coal specimens显示文摘Bumps in coal mines have been recognized as a major hazard for many years. These sudden and violent failures around mine openings have compromised safety, ventilation and access to mine workings.Previous studies showed that the violence of coal specimen failure depends on both the interface friction and width-to-height(W/H) ratio of coal specimen. The mode of failure for a uniaxially loaded coal specimen or a coal pillar is a combination of both shear failure along the interface and compressive failure in the coal. The shear failure along the interface triggered the compressive failure in coal. The compressive failure of a coal specimen or a coal pillar can be controlled by changing its W/H ratio. As the W/H ratio increases, the ultimate strength increases. Hence, with a proper combination of interface friction and the W/H ratio of pillar or coal specimen, the mode of failure will change from sudden violent failure which is brittle failure to non-violent failure which is ductile failure. The main objective of this paper is to determine at what W/H ratio and interface friction the mode of failure changes from violent to non-violent. In this research, coal specimens of W/H ratio ranging from 1 to 10 were uniaxially tested under two interface frictions of 0.1 and 0.25, and the results are presented and discussed. | Gamal Rashed Syd S.Peng | 2015 | Journal of Rock Mechanics and Geotechnical Engineering2015，7，3： | 3 |
| 8 | Backward Stochastic Differential Equations in Finance显示文摘 | N.El Karoui S.Peng M. C.Quenez | 2002 | Mathematical Finance2002，，1： | 3 |
| 9 | Impact of longwall mining on groundwater above the longwall panel in shallow coal seams显示文摘Since longwall mining causes subsidence through the overlying strata to the ground surface, the surface water and groundwater above the longwall panels may be affected and drained into the lower levels.Therefore, loss or interruption of streams and overburden aquifers is a common concern in coal industry.This paper analyzed the potential effects of longwall mining on subsurface water system in shallow coal seam. In order to monitor different water level fluctuations throughout the mining period, three water wells were drilled down to the proposed deformation zone above the longwall panel. A GGU-SS-FLOW3 D model was used to predict water table contours for the periods of pre- and post-mining conditions. The field data from the three water wells were utilized to calibrate the model. The field test and numerical model can help to better understand the dewatering of shallow aquifers and surface waters related to ground subsidence from longwall mining in shallow coal seam. | Yang Li Syd S.Peng Jinwang Zhang | 2015 | Journal of Rock Mechanics and Geotechnical Engineering2015，7，3： | 3 |
| 10 | Guest Editorial–Special issue on Ground Control in Mining显示文摘Ground control is the science of studying and controlling the behavior of rock strata in response to mining operations.Ground control related research has made significant advancements over the last 35 years and these accomplishments are well documented in the proceedings of the annual International Conference | Michael M.Murphy Gerald L.Finfinger Syd S.Peng | 2016 | International Journal of Mining Science and Technology2016，26，1： | 2 |
| 11 | 查看详情显示文摘 | P.Yang S.Peng X.F.Wang X.M.Lu F.Yan and J.S.Zhu | | 0，，08： | 1 |
| 12 | Guest editorial–Special issue on ground control in mining in 2016显示文摘In 1981 a Professor at West Virginia University recognized the need to establish a program for bringing together members of the mining community to share and discuss methods,technology and experiences related to ground control in mining operations[1].From this initial idea the International Conference on | Gerald L.Finfinger Syd S.Peng | 2017 | International Journal of Mining Science and Technology2017，27，1： | 1 |
| 13 | The effect of recrystallization on corrosion and electrochemical behavior of 7150 Al alloy显示文摘 | G. S.Peng K. H.Chen H. C.Fang S. Y.Chen H.Chao | 2011 | Materials and Corrosion2011，，1： | 1 |
| 14 | Study on effects of longwall mining on the underground water显示文摘 | 郭文兵 Syd S.Peng | 2007 | Journal of Coal Science & Engineering(China)2007，13，2： | 1 |
| 15 | Characterization of immortalized mesenchymal stem cells derived from foetal porcine pancreas显示文摘 | H.Cao H.Zhu J.Sun Y.Pu Z.Gao C.Yang S.Peng Z.Dou J.Hua | 2010 | Cell Proliferation2010，，1： | 1 |
| 16 | Sensitivity of typhoon track prediction in a regional prediction system to initial and lateral boundary conditions显示文摘 | LING-FENG MELINDA S.PENG | | 0，，： | 1 |
| 17 | 煤矿巷道底臌的模拟研究显示文摘本论文采用边界元——有限元耦合应力分析方法,对美国King No.4煤矿中第四采区巷道底臌与采空区和水平地质构造应力之间的关系进存了探讨。基于计算结果,本文发现较大的采空区范围以及较大的水平地质构造应力是导致该区域巷道底臌的重要原因等结论。图4,表2,参4。 | 谭学术 刘洪洲 Syd S.Peng | 1992 | 湘潭矿业学院学报1992，7，2： | 0 |
| 18 | 1966年以来菲律宾水稻改良品种和品系的产量显示文摘作物产量的遗传改良已经在许多作物上进行了深入的研究,如小麦、大麦、燕麦、玉米和黄豆,但对水稻的目标,是要弄清1966年以来选育的水稻品种(品系)的产量变化趋势。1996年旱季,在IRRI(国际水稻研究所)农场和PhiRice(菲律宾水稻研究所)农场分别种植12个相同的品种(品系);1998年的旱季,在IRRI农场种植7个品种(品系)。在水稻生长的各个关键时期进行生长状况分析, | S.Peng R.C.Laza R.M.Visperas 陈俊英 孙宗修 滕胜 | 2000 | 农业科技译丛(杭州)2000，，3： | 0 |
| 19 | Effect of Baroclinicity on Vortex Axisymmetrization. Part Ⅰ:Barotropic Basic Vortex显示文摘The barotropic and baroclinic disturbances axisymmetrized by the barotropic basic vortex are examined in an idealized modeling framework consisting of two layers. Using a Wentzel-Kramers-Brillouin approach, the radial propagation of a baroclinic disturbance is shown to be slower than a barotropic disturbance, resulting in a slower linear axisymmetrization for baroclinic disturbances. The slower-propagating baroclinic waves also cause more baroclinic asymmetric kinetic energy to be transferred directly to the barotropic symmetric vortex than from barotropic disturbances, resulting in a faster axisymmetrization process in the nonlinear baroclinic wave case than in the nonlinear barotropic wave case. | Melinda S.PENG Jiayi PENG Tim LI Eric HENDRICKS | 2014 | Advances in Atmospheric Sciences2014，31，6： | 0 |
| 20 | Effect of Baroclinicity on Vortex Axisymmetrization. Part Ⅱ:Baroclinic Basic Vortex显示文摘The effect of baroclinicity on vortex axisymmetrization is examined within a two-layer dynamical model. Three basic state vortices are constructed with varying degrees of baroclinicity:(i) barotropic,(ii) weak baroclinic, and(iii) strong baroclinic. The linear and nonlinear evolution of wavenumber-2 baroclinic disturbances are examined in each of the three basic state vortices. The results show that the radial propagating speed of the vortex Rossby wave at the lower level is larger with the stronger baroclinicity, resulting in a faster linear axisymmetrization process in the stronger baroclinic vortex.It is found that the nonlinear axisymmetrization process takes the longest time in the strongest baroclinic vortex among the three different basic vortices due to the weaker kinetic energy transfer from asymmetric to symmetric circulations at the lower level. A major finding in this study is that the same initial asymmetric perturbation can have different effects on symmetric vortices depending on the initial vortex baroclinicity. In numerical weather prediction models, this implies that there exists a sensitivity of the subsequent structural and intensity change solely due to the specification of the initial vertical shear of the tropical cyclone vortex. | Jiayi PENG Melinda S.PENG Tim LI Eric HENDRICKS | 2014 | Advances in Atmospheric Sciences2014，31，6： | 0 |
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