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| 1 | A review:On path planning strategies for navigation of mobile robot显示文摘This paper presents the rigorous study of mobile robot navigation techniques used so far.The step by step investigations of classical and reactive approaches are made here to understand the development of path planning strategies in various environmental conditions and to identify research gap.The classical approaches such as cell decomposition(CD),roadmap approach(RA),artificial potential field(APF);reactive approaches such as genetic algorithm(GA),fuzzy logic(FL),neural network(NN),firefly algorithm(FA),particle swarm optimization(PSO),ant colony optimization(ACO),bacterial foraging optimization(BFO),artificial bee colony(ABC),cuckoo search(CS),shuffled frog leaping algorithm(SFLA)and other miscellaneous algorithms(OMA)are considered for study.The navigation over static and dynamic condition is analyzed(for single and multiple robot systems)and it has been observed that the reactive approaches are more robust and perform well in all terrain when compared to classical approaches.It is also observed that the reactive approaches are used to improve the performance of the classical approaches as a hybrid algorithm.Hence,reactive approaches are more popular and widely used for path planning of mobile robot.The paper concludes with tabular data and charts comparing the frequency of individual navigational strategies which can be used for specific application in robotics. | B.K. Patle Ganesh Babu L Anish Pandey D.R.K. Parhi A. Jagadeesh | 2019 | Defence Technology(防务技术)2019，15，4： | 60 |
| 2 | Production of pig iron from red mud waste fines using thermal plasma technology显示文摘Red mud, an insoluble residue produced during alkali leaching of bauxite, is considered as a low-grade iron ore containing 30% to 50% iron. The present paper deals with the use of thermal plasma technology for producing pig iron from red mud waste fines. The smelting reduction of red mud was carried out in a 35 kW DC extended arc thermal plasma reactor. Red mud was properly mixed with fluxes and graphite (fixed carbon, 99%) as a reductant as per stoichiometric requirement. The effect of various process parameters like a reductant, fluxes and smelting time on iron recovery was studied and optimized. An optimum condition for the maximum recovery of iron was obtained. A new thermal plasma process applicable to direct iron making from red mud waste fines that would achieve significant utilization of red mud was proposed. | K. Jayasankar P.K. Ray A.K. Chaubey A. Padhi B.K. Satapathy P.S. Mukherjee | 2012 | International Journal of Minerals,Metallurgy and Materials2012，19，8： | 17 |
| 3 | Slurry wear characteristics of zinc-based alloys: Effects of sand content of slurry, silicon addition to alloy system and traversal distance显示文摘这调查处理在泥浆上与标本和泥浆作文以及遍历距离的效果相关的观察穿基于锌的合金的反应。合金的作文被把 4% 硅加到它改变。泥浆作文通过在被推迟在的 060% 的范围改变沙粒子的集中被改变(液体) 电解质。电解质包含了集中的硫的酸在水的 10 L 溶解了的 4 g 钠氯化物和 5 mL。泥浆穿测试在 15500 km 的遍历距离范围上以 7.02 m/s 的速度被进行。wear 率开始与遍历距离增加了,达到了最大值并且不管标本和测试环境,此后减少了。然而, wear 率山峰比液体唯一的媒介在加沙环境的液体是不太突出的。进一步,在液体唯一的媒介的 wear 率山峰在包含泥浆的沙比那座出现在更短的遍历距离。到电解质的沙粒子的增加把样品的 wear 率归结为取决于泥浆的沙集中的 5%15% 。而且,中介(40%) 沙内容导致了最大值穿率什么时候与相比在加沙媒介的液体。然而,这最大值是静止的不到在里面液体唯一的媒介。包含更高受不了的合金的硅比当在液体唯一的媒介测试了时,免费合金取样的硅穿率。相反,而混合回答在包含 60% 沙的泥浆被注意,趋势加 20% 和 40% 沙环境在液体逆行。在后者盒子中,当一个相反的趋势在更长的遍历距离被观察时,硅的存在开始证明有害。样品的 wear 反应在试验性的条件的一个给定的集合以他们象硅和占优势的材料移动机制一样的 microconstituents 的特定的特征被讨论。合金的观察行为也通过他们的影响表面和表面下的区域的特征进一步被证实。 | B.K. PRASAD, O.P. MODI | 2009 | 中国有色金属学会会刊:英文版2009，19，2： | 6 |
| 4 | Numerical simulation of vegetated mine dump slope with reference to small plants显示文摘The present paper discusses the effects of small plants on the dump mass reinforcement and slope stability.The roots of smaller plants(such as grasses and shrubs)do not go deep.However,they stabilize the slope by binding the upper layer of dump slope.Shear strength of the dump mass with and without root reinforcement is determined by laboratory shear box instrument.The increased cohesion(apparent cohesion)of upper layer of the dump mass due to plants is determined by fabricated shear box.The kinetic behavior of the dump has been investigated using the FLAC software.The factor of safety has been calculated in order to determine the possible effect of small plants on the stability of the dump slope.It is observed that the small plants do not significantly improve the factor of safety(FOS)of slope.However,it could be useful for early stabilization.The grasses quickly bind the upper surface,whereas shrubs too immensely strengthen the stability of the dump in the initial stage. | Rai Rajesh Shrivastva B.K. | 2014 | International Journal of Mining Science and Technology2014，24，1： | 4 |
| 5 | Experimental investigations of transient pressure variations in a high head model Francis turbine during start-up and shutdown显示文摘Penetration of the power generated using wind and solar energy to electrical grid network causing several incidents of the grid tripping, power outage, and frequency drooping. This has increased restart(star-stop) cycles of the hydroelectric turbines significantly since grid connected hydroelectric turbines are widely used to manage critical conditions of the grid. Each cycle induces significant stresses due to unsteady pressure loading on the runner blades. The presented work investigates the pressure loading to a high head( H P=377 m, DP =1.78 m) Francis turbine during start-stop. The measurements were carried out on a scaled model turbine( H M=12.5 m, DM =0.349 m). Total four operating points were considered. At each operating point, three schemes of guide vanes opening and three schemes of guide vanes closing were investigated. The results show that total head variation is up to 9% during start-stop of the turbine. On the runner blade, the maximum pressure amplitudes are about 14 kPa and 16 kPa from the instantaneous mean value of 121 kPa during rapid start-up and shutdown, respectively, which are about 1.5 times larger than that of the slow start-up and shutdown. Moreover, the maximum pressure fluctuations are given at the blade trailing edge. | TRIVEDI Chirag CERVANTES Michel J. GANDHI B.K. OLE DAHLHAUG G. | 2014 | Journal of Hydrodynamics2014，26，2： | 4 |
| 6 | Study on kinetics of thermal decomposition of low LOI goethetic hematite iron ore显示文摘In the present study, the kinetics of thermal decomposition of hydrated minerals associated in natural hematite iron ores has been investigated in a fixed bed system using isothermal methods of kinetic analysis. Hydrated minerals in these hematite iron ores are kaolinite, gibbsite and goethite, which contribute to the loss on ignition(LOI) during thermal decomposition. Experiments in fixed bed have been carried out at variable bed depth(16, 32, 48 and 64 mm),temperature(400-1200 ℃) and residence time(30,45, 60 and 75 min) for iron ore samples. It is observed that beyond a certain critical bed depth(16 mm), 100% removal of LOI is not found possible even at higher temperature and higher residence time. Most of the solid-state reactions of isothermal kinetic analysis have been used to analyze the reaction mechanism. The raw data are modified to yield fraction reacted 'α' versus time and used for developing various forms of 'α' functions.f(α) is the inverse of first derivative of g(α) with respect to α. The study demonstrates that decomposition of hydrated mineral in hematite follows the chemical kinetics.The estimated activation energy values in all the experimental situations are found to high, of the order of 60 kJ/mol, reinstating that the reactions are indeed controlled by moving phase boundary and random nucleation. | Beuria P.C. Biswal S.K. Mishra B.K. Roy G.G. | 2017 | International Journal of Mining Science and Technology2017，27，6： | 3 |
| 7 | 应用适当MRI作为依据对幼年和成年膝关节剥脱性骨软骨炎不稳定性进行诊断显示文摘目的回顾性分析前述MRI诊断标准检测幼年和成年膝关节剥脱性骨软骨炎(osteochondritis dissecans,OCD)不稳定性的敏感性和特异性,并与关节镜所见进行对照研究。材料与方法本研究符合HIPAA要求,并经学术审查委员会批准免除知情同意书。本研究包括32例骨骼未成熟病人(男25例,女7例,平均年龄14.4岁)的36个幼年性膝关节OCD,33例骨骼成熟病人(男25例,女8例,平均年龄26.2岁)的34个膝关节成年性OCD。所有病人均经MRI和关节镜检查。由2名放射医师回顾性分析MRI检查,在意见一致的条件下确定是否存在前述MR成像条件下不稳定OCD的表现(即高T2信号强度边缘,周围囊变, | R. Kijowski D.G. Blankenbaker K. Shinki J.P. Fine B.K. Graf A.A. DeSmet. 白荣杰(译) 唐光健(校) | 2008 | 国际医学放射学杂志2008，31，5： | 3 |
| 8 | 泡沫滞留时间对浮选动力学的影响显示文摘先前的研究表明浮选机中浮选总速率常数K与气泡表面积通量Sb之间存在着紧密的联系,且这一联系与浮选机叶轮类型无关。最近从处理同一给矿的250L浮选槽和3m^3浮选槽的研究中得到:只要浮选泡沫层厚度与浮选机内表层气体流速之比一致,两浮选槽表现出相同的k-Sb联系,这一比例称为泡沫滞留时间,τfg。本文通过对这些结论再次评估和解释,来检测泡沫滞留时间τfg对浮选动力学的影响。研究发现K对τfg呈指数形式减小但这一联系与浮选槽尺寸有关,因此不能直接用于比例放大。当τfg被特定的浮选槽尺寸来除而用来解释不同尺寸浮选槽中泡沫传输距离的影响时,K与'比泡沫滞留时间'的联系更适于试验数据且这一联系与浮选槽的尺寸无关。最后当用在精矿流量基础上计算出的泡沫滞留时间τfg来评估试验结果时,发现τfg又更适于试验数据。讨论了这些联系在浮选槽模拟和比例放大方面的应用情况。 | B.K.戈雷 J.P.费朗兹蒂斯 E.V.曼拉皮格 M.C.哈里斯 罗仙平 | 1999 | 现代矿业1999，0，11： | 2 |
| 9 | Review of fluoride removal from drinking water显示文摘 | M. Mohapatra S. Anand B.K. Mishra Dion E. Giles P. Singh | 2009 | Journal of Environmental Management2009，，1： | 2 |
| 10 | Thyroid inhibitory, antiperoxidative and hypoglycemic effects of stigmasterol isolated from Butea monosperma显示文摘 | S. Panda M. Jafri A. Kar B.K. Meheta | 2008 | Fitoterapia2008，，2： | 2 |
| 11 | Numerical investigation of the effect of joint geometrical parameters on the mechanical properties of a non-persistent jointed rock mass under uniaxial compression显示文摘 | M. Bahaaddini G. Sharrock B.K. Hebblewhite | 2013 | Computers and Geotechnics2013，，： | 2 |
| 12 | Isolation and screening of Streptomyces in soil of protected forest areas from the states of Assam and Tripura, India, for antimicrobial metabolites显示文摘 | D. Thakur A. Yadav B.K. Gogoi T.C. Bora | 2007 | Journal de Mycologie Médicale2007，，4： | 2 |
| 13 | Influence of modified phenolic resins on the fade and recovery behavior of friction materials显示文摘 | J. Bijwe Nidhi N. Majumdar B.K. Satapathy | 2005 | Wear2005，，7： | 2 |
| 14 | CPR knowledge and attitude to performing bystander CPR among secondary school students in Norway显示文摘 | B.K. Kanstad S.Aa. Nilsen K. Fredriksen | 2011 | Resuscitation2011，，8： | 2 |
| 15 | 查看详情显示文摘 | Li D Muller M.B Gilje S Richard B.K. Gordon G.W | | 0，，： | 1 |
| 16 | Thin-layer drying of litchi ( Litchi chinensis Sonn . )显示文摘 | S. Janjai M. Precoppe N. Lamlert B. Mahayothee B.K. Bala M. Nagle J. Müller | 2010 | Food and Bioproducts Processing2010，，3： | 1 |
| 17 | Duct-to-Duct Biliary Reconstructions and Complications in 100 Living Donor Liver Transplantations显示文摘 | B.W. Kim B.K. Bae J.M. Lee J.H. Won Y.K. Park W.G. Xu H.J. Wang M.W. Kim | 2009 | Transplantation Proceedings2009，，5： | 1 |
| 18 | Nanodiamond planar lateral field emission diode显示文摘 | K. Subramanian W.P. Kang J.L. Davidson W.H. Hofmeister B.K. Choi M. Howell | 2005 | Diamond & Related Materials2005，，11： | 1 |
| 19 | Contamination of liquid milk and butter with pesticide residues in the Ludhiana district of Punjab state, India显示文摘 | R.S. Battu Balwinder Singh B.K. Kang | 2003 | Ecotoxicology and Environmental Safety2003，，3： | 1 |
| 20 | 老年高血压患者的海马萎缩、全脑容积改变及白质损伤情况 | Wiseman R.M. Saxby B.K. Burton E.J. 胡慧敏 | 2005 | 世界核心医学期刊文摘(神经病学分册)2005，0，5： | 1 |
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