|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Gas-dynamic phenomena caused by rock mass tremors and rock bursts显示文摘Similar to coal, rock and gas ejections, rock mass tremors and rock bursts are among the most serious natural hazards accompanying the underground extraction of coal. Gas-dynamic phenomena caused by rock mass tremors and rock bursts observed as transient states of air parameters in mining headings,are usually generated as a result of a change in the geometry of headings and the release of considerable amounts of gases. Particular significance is attributed to transient states caused by disasters, which are often accompanied by rapid incidents, presenting threats to the life and health of the underground crew.In Polish mining there are known examples of transient states of air parameters recorded during gasdynamic phenomena, e.g. tremors and rock bursts. The paper presents the case studies of rapid seismic incidents to show how records in mine monitoring systems broaden the knowledge about the transient states of air parameters in mining headings generated because of them. | Stanislaw Wasilewski | 2020 | International Journal of Mining Science and Technology2020，30，3： | 5 |
| 2 | Characterization of multiphase gas–solid flow and accuracy of turbulence models for lower stage cyclones used in suspension preheaters显示文摘This study involved the analysis and characterization of the multiphase flow phenomenon inside the lower stage cyclone separator used in the clinker burning process.The analysis was performed using both CFD and experimental research methods.Very few studies are devoted to such types of cyclone separators,which in addition to their basic functions are also responsible for the technological process.Due to the atypical working conditions of these cyclone separators,they are characterized with a complex geometry,which significantly differs from that of the traditional separators.Furthermore,the evaluation of the accuracy and level of reliability of the two models of turbulence closure—k-e RNG and RSM(RANS),and the LES.The results obtained led to the conclusion that for the lower stage cyclone separators,the LES model proved to be the most accurate(both in the case of forecasting the separation efficiency and pressure drop).The performance parameter(in particular the separation efficiency)values obtained for the RSM model were also characterized by high accuracy.The k-e RNG model was characterized by significantly larger deviations. | Marek Wasilewski Stanislaw Anweiler Maciej Masiukiewicz | 2019 | Chinese Journal of Chemical Engineering2019，27，7： | 2 |
| 3 | Terahertz Semiconductor Quantum Well Devices显示文摘For eventually providing terahertz science with compact and convenient devices,terahertz (1~10THz) quantum-well photodetectors and quantum-cascade lasers are investigated.The design and projected detector performance are presented together with experimental results for several test devices,all working at photon energies below and around optical phonons.Background limited infrared performance (BLIP) operations are observed for all samples (three in total),designed for different wavelengths.BLIP temperatures of 17,13,and 12K are achieved for peak detection frequencies of 9.7THz(31μm),5.4THz(56μm),and 3.2THz(93μm),respectively.A set of THz quantum-cascade lasers with identical device parameters except for doping concentration is studied.The δ-doping density for each period varies from 3.2×1010 to 4.8×1010cm-2.We observe that the lasing threshold current density increases monotonically with doping concentration.Moreover,the measurements for devices with different cavity lengths provide evidence that the free carrier absorption causes the waveguide loss also to increase monotonically.Interestingly the observed maximum lasing temperature is best at a doping density of 3.6×1010cm-2. | Liu H C Luo H Ban D Waichter M Song C Y Wasilewski Z R Buchanan M Aers G C SpringThorpe A J Cao J C Feng S L Williams B S Hu Q | 2006 | Journal of Semiconductors2006，27，4： | 2 |
| 4 | GaAs/AlGaAs多量子阱空间光调制器入射角度特性研究显示文摘研究了GaAs/AlGaAs多量子阱(MQW)空间光调制器(SLM)在不同入射角度下的调制特性。对腔模位置与入射角度的关系进行了理论计算和实验验证,两者具有较好的一致性。当入射角在0°~75°之间变化时,腔模从871nm变化至845nm,可调节范围达26nm。当入射光从垂直入射变化为约45°入射时,SLM对比度从(CR)3.8提高到16.3,调制电压从9.5V下降至6.5V。理论分析和实验结果表明,入射角度调节能够有效提高GaAs/AlGaAs MQW SLM调制性能。 | 黄寓洋 刘惠春 Wasilewski Z R Buchanan M Laframboise S R 杨晨 崔国新 边历峰 杨辉 张耀辉 | 2010 | 光电子.激光2010，21，5： | 2 |
| 5 | Experimental study on the temperature evolution in the railway brake disc显示文摘Increasing operating speed of modern passenger railway vehicles leads to higher thermal load onthe braking system. Organic composite brake pads are poor thermal conductors, hence frictionalheat is absorbed mainly by the disc. In this study three brake pad types were tested on thedynamometer. Metallic fibres, steel and copper, were introduced to the formulation of twomaterials. The third was a non-metallic material - a reference case. Dynamometer test comprisedemergency brake applications to determine the frictional characteristics of the materials andconstant-power drag braking to analyse the effect of metal fibres on temperature evolution,measured by six thermocouples embedded in the brake disc. Mean friction coefficient is analysedand discussed. It is concluded that conductive fibre in the friction material formulation mayinfluence its tribological characteristics. Despite high thermal conductivity, metal fibres in theconcentration tested in this study, did not reduce temperature of the brake disc. | Aleksander Yevtushenko Michal Kuciej Piotr Wasilewski | 2019 | Theoretical & Applied Mechanics Letters2019，9，5： | 2 |
| 6 | Aspects of the validation of magnetic remanence in meteorites显示文摘 | Wasilewski P Dickinson T | 2000 | Meteoritics & Planetary Science2000，，35： | 1 |
| 7 | 查看详情显示文摘 | Wasilewski MM | | 0，，： | 1 |
| 8 | Tensile properties of NiAl and NiTi显示文摘 | Rozner A G Wasilewski R J | 1966 | J Inst Met1966，94，： | 1 |
| 9 | Land conservation for suburban housing:a study of urbanization and around Warsaw and Olsztyn,Poland显示文摘 | Wasilewski A and K Krukowski | 2004 | Environment Management2004，34，2： | 1 |
| 10 | Patellofemoral complications following total knee arthroplasty:correlation with implant design and patient risk factors 显示文摘 | Healy WL Wasilewski SA Takei R | 1995 | Arthroplasty1995，10，1： | 1 |
| 11 | Outcome of primary angioplasty and angioplasty after initial thrombolysis in the threatment of 374 consecutive patients with acute myocardial infarction显示文摘 | Polonski L Gasior M Wasilewski J | 2003 | Am Heart J2003，145，5： | 1 |
| 12 | Rendering Vector Data over Global, Multiresolution 3d Terrain 显示文摘 | Wartell Z Kang E Wasilewski T | 2003 | Proceedings on the Symposium on Data Visualization2003，40，： | 1 |
| 13 | From urban terrain models to visible cities显示文摘 | RIBARSKY W WASILEWSKI T FAUST N | 2002 | IEEE Computer Graphics and Applications2002，22，4： | 1 |
| 14 | Daptomycin: a novel agent for Gram-positive infections显示文摘 | Tally F P Zeckel M Wasilewski M M | 1999 | Exp Opin Invest Drugs1999，8，： | 1 |
| 15 | The changing shape of mitochondrial apoptosis 显示文摘 | Wasilewski Micha Scorrano Luca | 2009 | Trends Endocrinol Metab2009，20，6： | 1 |
| 16 | Coupled electron- phonon modes in optically pumped resonant intersubband lasers显示文摘 | Liu H C Song C Y Wasilewski Z R | 2003 | Physical review letters2003，90，07： | 1 |
| 17 | Application of fuzzy cellular automata to spatial electric load forecasting显示文摘 | WASILEWSKI J | 2009 | Archives of Electrical Engineering2009，58，229： | 1 |
| 18 | Myogenic vestibular evoked potentials used to objective estimation of effectiveness of central action drugs显示文摘 | Morawiec-Bajda A Wasilewski B | 2000 | Otolaryngol Pol2000，54，： | 1 |
| 19 | Efect of concord grape juiee on chemotherapy - induced nausea and vomiting:results of a pi- lot study显示文摘 | Ingersoll GL Wasilewski A Hailer M | 2010 | Oncol Nurs Forum2010，37，2： | 1 |
| 20 | Intraeavity beam behavior in hybrid resonator planar-waveguide CO2 lasers显示文摘 | B Wasilewski H J Baker D R Hall | 2000 | Appl Opt2000，39，33： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员