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291篇 您的检索式:作者名="Mikulas"
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1Discussions on rockburst and dynamic ground support in deep mines显示文摘The paper is a summary of discussions on four topics in rockburst and dynamic ground support.Topic 1 is the mechanisms of rockburst.Rockburst events are classified into two categories in accordance with the triggering mechanisms,i.e.strain burst and fault-slip burst.Strain burst occurs on rock surfaces when the tangential stress exceeds the rock strength in hard and brittle rocks.Fault-slip burst is triggered by fault-slip induced seismicity.Topic 2 is prediction and forecasting of rockburst events.Prediction for a rockburst event must tell the location,timing and magnitude of the event.Forecasting could simply foresee the probability of some of the three parameters.It is extremely challenging to predict rockbursts and large seismic events with current knowledge and technologies,but forecasting is possible,for example the possible locations of strain burst in an underground opening.At present,the approach using seismic monitoring and numerical modelling is a promising forecasting method.Topic 3 is preconditioning methods.The current preconditioning methods are blasting,relief-hole drilling and hydrofracturing.Defusing fault-slip seismicity is difficult and challenging but has been achieved.In very deep locations(>3000 m),the fracturing could extend from the excavation face to a deep location ahead of the face and therefore preconditioning is usually not required.Topic 4 is dynamic ground support against rockburst.Dynamic ground support requires that the support system be strong enough to sustain the momentum of the ejecting rock on one hand and tough enough on the other hand to absorb the strain and seismic energies released from the rock mass.The current dynamic support systems in underground mining are composed of yielding tendons and flexible surface retaining elements like mesh/screen and straps.Yielding props and engineered timber props are also used for dynamic support.Charlie C.Li Peter Mikula Brad Simser Bruce Hebblewhite William Joughin Xiaowei Feng Nuwen Xu 2019Journal of Rock Mechanics and Geotechnical Engineering2019,11,5:5
2Eco-efficiency analysis of power plants: An extension of data envelopment analysis显示文摘Pekka J. Korhonen Mikulas Luptacik 2003European Journal of Operational Research2003,,2:3
3Surface tension of liquid Au-Bi-Sn alloys显示文摘The surface tension of a promising lead-free solder Au-Bi-Sn alloys was investigated both by the sessile-drop method and calculation. Experimental measurements were carried out for two cross-sections with the constant gold to bismuth ration of 1:1 and 1:2. For all the investigated compositions, decrease of the surface tension is observed with increasing temperature. Meanwhile, the surface tension values were also calculated based on Butler's equation, with using the newest research on thermodynamics data of Au-Bi-Sn ternary system. Compared with the experimental results, a good agreement was obtained.Guo, Zhongnan Li, Shan Mikula, Adolf Yuan, Wenxia 2012Rare Metals2012,31,3:2
4Specifc inflammatory osteoclast precursors induced during chronic inflammation give rise to highly active osteoclasts associated with inflammatory bone loss显示文摘Elevated osteoclast(OC)activity is a major contributor to inflammatory bone loss(IBL)during chronic inflammatory diseases.However,the specific OC precursors(OCPs)responding to inflammatory cues and the underlying mechanisms leading to IBL are poorly understood.We identified two distinct OCP subsets:Ly6C^(hi)CD11b^(hi) inflammatory OCPs(iOCPs)induced during chronic inflammation,and homeostatic Ly6C^(hi)CD11b^(lo)OCPs(hOCPs)which remained unchanged.Functional and proteomic characterization revealed that while iOCPs were rare and displayed low osteoclastogenic potential under normal conditions,they expanded during chronic inflammation and generated OCs with enhanced activity.In contrast,hOCPs were abundant and manifested high osteoclastogenic potential under normal conditions but generated OCs with low activity and were unresponsive to the inflammatory environment.Osteoclasts derived from iOCPs expressed higher levels of resorptive and metabolic proteins than those generated from hOCPs,highlighting that different osteoclast populations are formed by distinct precursors.We further identified the TNF-αand S100A8/A9 proteins as key regulators that control the iOCP response during chronic inflammation.Furthermore,we demonstrated that the response of iOCPs but not that of hOCPs was abrogated in tnf-α^(-/-)mice,in correlation with attenuated IBL.Our findings suggest a central role for iOCPs in IBL induction.iOCPs can serve as potential biomarkers for IBL detection and possibly as new therapeutic targets to combat IBL in a wide range of inflammatory conditions.Yaron Meirow Milena Jovanovic Yuval Zur Juliana Habib Daniele Filippo Colombo Nira Twaik Hadas Ashkenazi-Preiser Kerem Ben-Meir Ivan Mikula Jr. Or Reuven Guy Kariv Leonor Daniel Saja Baraghithy Yehuda Klein Jeroen Krijgsveld Noam Levaot Michal Baniyash 2022Bone Research2022,10,3:2
5Photoelectrochemi cal properties of anodic layers prepared by various current densities显示文摘MIKULA M BLECHA J CEPPAN M 1992Electrochem Soc1992,139,:2
6PDGF essentially links TGF-beta signaling to nuclear beta-catenin accumulation in hepatocellular carcinoma progression显示文摘Fischer AN Fuchs E Mikula M 2007Oncogene2007,26,23:1
7The island monastery of Valaam in Finnish homeland tourism: Constructing a 'Thirdspace' in the Russian borderlands 显示文摘Mikula M 2013Fennia2013,191,1:1
8Perception of stroke in Croatia-knowledge of stroke signs and risk factors amongst neurological outpatients显示文摘Vukovic V Mikula I Kesic MJ 2009European Journal of Neurology2009,16,9:1
9Mechanisms of crude oil- mineral interaetions显示文摘Omotoso O E Munoz V A Mikula R J 2002Spill Science and Technology Bulletin2002,8,1:1
10Diffractive elements with extended depth of focus 显示文摘MAKOWSKI M MIKULA G SYPEK M 2004SPIE2004,5484,:1
11Mechanisms of Crude Oil- Mineral Interactions显示文摘Omotoso O E Munoz V A Mikula R J 2002Spill Science & Technology Bulletin2002,8,1:1
12Influence of UV-Curing Conditions on Polymerization Kinetics and Gloss of Urethane Acrylate Coatings显示文摘Viera Jan(c)ovi(c)ová Milan Mikula Bohuslava Havlínová 2013Progress in Organic Coatings2013,76,0203:1
13Examining the drivers of total factor productivity change with an illustrative example of 14 EU countries显示文摘Bernhard Mahlberg Mikulas Luptacik Biresh K. Sahoo 2011Ecological Economics2011,,:1
14Severity of overactive bladder symptoms and response to dose escalation in a randomized, double‐blind trial of solifenacin ( SUNRISE )显示文摘Linda Cardozo Gerard Amarenco Dmitry Pushkar Jura Mikulas Ted Drogendijk Mark Wright Gerhard Compion 2013BJU Int2013,,:1
15Comparison of three techniques for cryopres-ervation and reestabhshment of long-term Gentiana tibetica suspension culture 显示文摘Mikula A 2006Cryo Letters2006,27,5:1
16PDGF essentially links TGF-beta signaling to nuclear beta-eatenin accumulation in hepatocellular carcinoma progression 显示文摘Fischer AN Fuehs E Mikula M 2007Oncogene2007,26,23:1
17Differences of blink-reflex abnormalities in patients suffering from idiopathic and symptomatic trigeminal neuralgia显示文摘Mikula I Trkanjec Z Negovetic R 2005Wien Klin Wochenschr2005,117,1112:1
18Fraetal dimensions of coal particles显示文摘Friesen W I Mikula R J 1987Journal of Colloid and Interface Science1987,120,1:1
19Influence of UV- curing conditions on polymerization kinetics and gloss of urethane acrylate coatings显示文摘Jancovicova V Mikula M Havlinova B 2013Progress in Organic Coatings2013,76,23:1
20Fractal dimensions of coalparticles显示文摘FRIESEN W I MIKULA R J 1987Journal of Colloid Interface Science1987,120,26:1
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