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| 1 | A study of rock bolting failure modes显示文摘Rock bolting has advanced rapidly during the past 4 decades due to a better understanding of load transfer mechanisms and advances made in the bolt system technology. Bolts are used as permanent and temporary support systems in tunnelling and mining operations. A review of has indicated that three systems of reinforcement devices have evolved as part of rock bolt and ground anchor while the rock is not generally thought of as being a component of the reinforcement system. A classification of rock bolting reinforcement systems is presented, followed by the fundamental theory of the load transfer mechanism. The failure mode of two phases of rock bolting system is formularised. The failure modes of cable bolting are discussed using a bond strength model as well as an iterative method. Finally, the interfacial shear stress model for ribbed bar is introduced and a closed form solution is obtained using a tri-line stress strain relationship. | Cao Chen Jan Nemcik Ren Ting Naj Aziz | 2013 | International Journal of Mining Science and Technology2013,23,1: | 14 |
| 2 | Evolution and application of in-seam drilling for gas drainage显示文摘The presence of seam gas in the form of methane or carbon dioxide presents a hazard to underground coal mining operations.In-seam drilling has been undertaken for the past three decades for gas drainage to reduce the risk of gas outburst and lower the concentrations of seam gas in the underground ventilation.The drilling practices have reflected the standards of the times and have evolved with the development of technology and equipment and the needs to provide a safe mining environment underground.Early practice was to adapt equipment from other felds,with rotary drilling being the only form of drilling available.This form of drainage allowed various levels of gas drainage coverage but with changing emphasis,research and development within the coal industry has created specifc equipment,technology and practices to accurately place in-seam boreholes to provide effcient and effective gas drainage.Research into gas content determination established a standard for the process and safe levels for mining operations to continue.Surveying technology improved from the wire-line,single-shot Eastman survey instruments which was time-dependent on borehole depth to electronic instruments located in the drill string which transmitted accurate survey data to the drilling crew without time delays.This allowed improved directional control and increased drilling rates.Directional drilling technology has now been established as the industry standard to provide effective gas drainage drilling.Exploration was identifed as an additional beneft with directional drilling as it has the ability to provide exploration data from long boreholes.The ability of the technology to provide safe and reliable means to investigate the need for inrush protection and water drainage ahead of mining has been established.Directional drilling technology has now been introduced to the Chinese coal industry for gas drainage through a practice of auditing,design,supply,training and ongoing support.Experienced drilling crews can offer site specifc gas drainage drilling services utilising the latest equipment and technology. | Frank Hungerford Ting Ren Naj Aziz | 2013 | International Journal of Mining Science and Technology2013,23,4: | 12 |
| 3 | Common variants at MS4A4/ MS4A6E,CD2AP,CD33 and EPHA1 are associated with late-onset Alzheimer′s disease显示文摘 | Naj AC Jun G Beecham GW | | 0,,: | 1 |
| 4 | Pathological findings in homocysteinura显示文摘 | Gibson JB Carson NAJ Neill DW | 1964 | J Clin Pathol1964,17,4: | 1 |
| 5 | Crocin prevents patulininduced acute toxicity in cardiac tissues via the regulation of oxidative damage and apoptosis显示文摘 | Boussabbeh M Ben Salem I Neffati F Naj ar MF Bacha H Abid-Essefi S | 2015 | J Biochem Mol Toxicol2015,29,10: | 1 |
| 6 | Ultrasonic nonlinear proper- ties of lead zirconate titanate ceramics 显示文摘 | NAJ BREAZEALE M A | 1994 | J Acoust Soc Am1994,95,6: | 1 |
| 7 | Predicting mortality in damage control surgery 显示文摘 | Kaifinos Nicol NAJ Timmermans J | 2007 | Journal of Surgical Research2007,137,2: | 1 |
| 8 | Genome-wide asso- ciation meta-analysis of neuropathologic features of Alzheim- er's disease and related dementias显示文摘 | Beecham GW Hamilton K Naj AC | 2014 | PLoS Genet2014,10,9: | 1 |
| 9 | The effects of mild Perioperative hypothermia on blood loss and transfusion requirement显示文摘 | Rajagopalan S Mascha E NaJ | 2008 | Anesthesiology2008,108,1: | 1 |
| 10 | Common variants at MFIA4/MS4A6E, CD2AP, CD33 and EPHAI are associated with ate-onset Alzheimer' s disease显示文摘 | Naj AC Jun G Beecham GW | 2011 | Nat Genet2011,43,: | 1 |
| 11 | Thermal and mechanical instability of functionally graded trucated conical shells显示文摘 | Naj R Sabzikar Boroujerdy M S Eslami M R | 2008 | Thin-Walled Structures2008,46,1: | 1 |
| 12 | Influence of Temperature on Coal Sorption Characteristics and the Theory of Coal Surface Free Energy显示文摘 | Lei Zhang Naj Aziz Ting X Ren Zhongwei Wang | 2011 | Procedia Engineering2011,,: | 1 |
| 13 | Thermal and mechanical instability of functionally graded truncated conical shells 显示文摘 | Naj R Sabzikar Boroujerdy M S Eslami M R | 2008 | Thin-Walled Structures2008,46,1: | 1 |
| 14 | The effect of surface profile, rock strength and pretension load on bending behaviour of fully grouted bolts显示文摘 | Hossein Jalalifar Naj Aziz Muhammad Hadi | 2006 | Geotechnical and Geological Engineering2006,,5: | 1 |
| 15 | Thermal instability of functionally graded shallow spherical shell显示文摘 | SHAHSIAH R ESLAMI M R NAJ R | 2006 | Journal of Thermal Stresses2006,29,8: | 1 |
| 16 | Nonpalpable breast le- sion: asso-ciation of mammographic abnormalities with diag- nosis after needledirected biopsy 显示文摘 | Gary JB naj JBG Maj RH | 1999 | South Med1999,86,7: | 1 |
| 17 | Alumina-supported FeCI3 , MnCI2 , CoCI2 , NiCI2 , CuCI2 , and ZnC12 as catalysts for the benzylation ~ff benzene b~,' benzyl chloride显示文摘 | Salavati-Niasari M Hasanalian J Naj'~an H | 2004 | Journal of Molecular Catalysis A : Chemical2004,209,12: | 1 |
| 18 | Comparative evaluation of safety and eflcacy of pamidronate and zoledronic acid in multiple myeloma patients( single center experience) 显示文摘 | Kraj M Poglod R Naj S | 2002 | Acta Pol Pharm2002,59,6: | 1 |
| 19 | Mata-analysis confirms CR1,CLU,and PICALM as Alzheimer disease risk loci and reveals intcractions with APOE genotypes显示文摘 | Jun G Naj AC Beecham GW | | 0,,12: | 1 |
| 20 | Meta-analysis confirms CR1, CLU, and PICALM as alzheimer disease risk loci and reveals interactions with APOE genotypes 显示文摘 | JUN G NAJ A C BEECHAM G W | 2010 | Arch Neurol2010,67,12: | 1 |