|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effects of overburden characteristics on dynamic failure in underground coal mining显示文摘Dynamic failures, or ‘‘bumps', remain an imperative safety concern in underground coal mining, despite significant advancements in engineering controls. The presence of spatially discrete, stiff roof units are one feature that has been linked to these events. However, an empirical stratigraphic review indicates that no significant difference exists in the relative commonality of discrete units between bumping and non-bumping deposits. Instead an apparent relationship exists between reportable bumping and the overall stiffness of the host rock. However, this initial study is too simplistic to be conclusive; to weight the relative impact of changes in a single variable, such as the thickness or location of sandstone members, it must be examined in isolation—i.e., in a setting where all other variables are held constant.Numerical modelling provides this setting, and the effects of variability in a stiff discrete member in a hypothetical longwall mining scenario are investigated within the context of three stratigraphic ‘‘types',Compliant, Intermediate and Stiff. A modelling experiment examines changes in rupture potential in stiff roof units for each stratigraphic type as discrete unit thickness and location are manipulated through a range of values. Results suggest that the stiff-to-compliant ratio of the host rock has an impact on the relative stress-inducing effects of discrete stiff members. In other words, it is necessary to consider both the thickness and the distance to the seam, within the context of the host rock, to accurately anticipate areas of elevated rupture-induced hazard; acknowledging the presence of a discrete unit within the overburden in general terms is an insufficient indicator of risk. This finding helps to refine our understanding of the role of individual stiff, strong roof members in bumping phenomena, and suggests that a holistic view of overburden lithology and site-specific numerical modelling may be necessary to improve miner safety. | Lawson Heather E. Tesarik Douglas Larson Mark K Abraham Habte | 2017 | International Journal of Mining Science and Technology2017，27，1： | 7 |
| 2 | Numerical reconstruction of microstructure of graphite anode of lithium-ion battery显示文摘Due to the presence of graphite flake cascades,the real graphite anode of Li-ion battery shows non-isotropic characteristic. The present work developed an ellipsoid-based simulated annealing method and numerically reconstructed the three-dimensional microstructure of a graphite anode. The reconstructed anode is a composite of three clearly distinguished phases: pore(or electrolyte),graphite, and solid additives, well representing the nonisotropic heterogeneous characteristic of real graphite anode. Characterization analysis of the reconstructed electrode gives information such as the connectivity of individual phase, the specific interfacial area between solid and pore phase, and the pore size distribution. The effects of the ellipsoid size on the structural characteristics of graphite anode were particularly studied. As the size of the ellipsoidal particle slightly increases, the average pore diameter increases and as a result the specific interfacial area between the solid and pore phase in the reconstructed area decreases; compared with the equatorial radius, the polar radius of ellipsoidal graphite particles has more significant influence on the characteristics of electrode microstructure. | Shaoyang He Jianbang Zeng Bereket Tsegai Habte Fangming Jiang | 2016 | Science Bulletin2016，61，8： | 2 |
| 3 | Study of low noise multichannelreadout electronics for high sensitivity PET systemsbased on avalanche photodiode arrays 显示文摘 | Habte F Levin C S | 2004 | IEEETransactions on Nuclear Science2004，51，3： | 1 |
| 4 | Speech, language and cognition in preschool children with epilepsy 显示文摘 | I Rejni ---Habte Selassie G Viggedal G Olsson I | 2008 | Dev Med Child Neurol2008，50，4： | 1 |
| 5 | A fully coupled flow deformation model for cyclic analysis of unsaturated soils including hydraulic and mechanical hystereses显示文摘 | N. Khalili M.A. Habte S. Zargarbashi | 2008 | Computers and Geotechnics2008，，6： | 1 |
| 6 | A Comparison of GEANT4 and DETECT 2000 for the Simulation of Light Transport in Scintillation Detectors 显示文摘 | Matthew A Blackston Habte F | 2008 | IEEE Trans Nucl2008，，： | 1 |
| 7 | Variants of the SFTPA1 and SFTPA2 genes and susceptibility to tuberculosis in Ethiopia显示文摘 | Malik S Greenwood CM Eguale T Kifle A Beyene J Habte A | 2006 | Hum Genet2006，118，6： | 1 |
| 8 | Artemisinin:an alternative treament for oral squamous cell carcinoma 显示文摘 | Yamachika E Habte T Oda D | 2004 | Anticancer Res2004，24，4： | 1 |
| 9 | The role of crude human saliva and purified salivary MUC5B and MUC7 mucins in the inhibition of Human Immunodeficiency Virus type 1 in an inhibition assay 显示文摘 | Habte HH Mall AS de Beer C | 2006 | Virol J2006，3，24： | 1 |
| 10 | Evaluation of 89Zr-rituximab tracer by Cerenkov luminescence ima- ging and correlation with PET in a humanized trans- genic mouse model to image NHL显示文摘 | Natarajan A Habte F Liu H | 2013 | Molecular Im- aging and Biology2013，15，4： | 1 |
| 11 | Human resources for health: overcoming the crisis显示文摘 | Lincoln Chen Timothy Evans Sudhir Anand Jo Ivey Boufford Hilary Brown Mushtaque Chowdhury Marcos Cueto Lola Dare Gilles Dussault Gijs Elzinga Elizabeth Fee Demissie Habte Piya Hanvoravongchai Marian Jacobs Christoph Kurowski Sarah Michael Ariel Pablos-Men | 2004 | The Lancet . 2004 (9449)2004，，： | 1 |
| 12 | Major cause of mastitis and associated risk factors in smallholder dairy farms in and around Hawassa, Southern Ethiopia显示文摘 | Abera M Habte T Aragaw K | 2012 | Trop Anita Health Prod2012，44，6： | 1 |
| 13 | Artemisinin:an alternative treatment for oral squamous cell carcinoma 显示文摘 | Yamachika E Habte T Oda D | 2004 | Anticancer Res2004，24，4： | 1 |
| 14 | The role of crude human saliva and purified salivary MUC5B and MUC7 mucins in the inhibition of Human Immunodeficiency Virus type 1 in an inhibition assay显示文摘 | Habte HH Mall AS de Beer C | 2006 | Virology journal2006，3，1： | 1 |
| 15 | Artemisinin:an alternative treat-ment for oral squamous cell carcinoma显示文摘 | Habte T Oda D | 2004 | Anticancer Res2004，24，4： | 1 |
| 16 | Art emisinin: an alternative treatment for oral squamous cell carcinoma 显示文摘 | Yamachika E Habte T Oda D | 2004 | Anticanccr Res2004，24，： | 1 |
| 17 | Artemisinin: an alternative treat ment for oral squamous cell carcinoma显示文摘 | Yanachika E Habte T Oda D | 2004 | Anticancer Res2004，24，4： | 1 |
| 18 | Artemisinin: an alternative treatment for oral squamous cell carcinoma显示文摘 | Yamachika E Habte T Oda D | 2004 | Antieancer Res2004，24，： | 1 |
| 19 | Enterotoxin producing bacteria and parasites in stools of Eethiopian children with diarrhea disease显示文摘 | Wadstrom T Aust-kettis A Habte D | 1976 | Arch Dis Child1976，51，： | 1 |
| 20 | Influence of inorganic N on mycorrhizal activity nodulation growth of Leucaena leucocephala in an oxisol subjected to stimulated erosio显示文摘 | Aziz T Habte M | 1989 | Commun Soil Sci Plant Anal1989，71，34： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员