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| 1 | Requirements for the transfer of lead-free piezoceramics into application显示文摘The recent review for the Restriction of Hazardous Substances Directive(RoHS)by the expert committee,appointed by the European Union,stated that the replacement of PZT“…may be scientifically and technologically practical to a certain degree…”,although replacement“…is scientifically and technically still impractical in the majority of applications.”Thus,two decades of sustained research and development may be approaching fruition,at first limited to a minority of applications.Therefore,it is of paramount importance to assess the viability of lead-free piezoceramics over a broad range of application-relevant properties.These are identified and discussed in turn:1.Cost,2.Reproducibility,3.Mechanical and Thermal Properties,4.Electrical Conductivity,and 5.Lifetime.It is suggested that the worldwide efforts into the development of lead-free piezoceramics now require a broader perspective to bring the work to the next stage of development by supporting implementation into real devices.Guidelines about pertinent research requirements into a wide range of secondary properties,measurement techniques,and salient literature are provided. | Jurij Koruza Andrew J.Bell Till Fromling Kyle G.Webber Ke Wang Jürgen Rodel | 2018 | Journal of Materiomics2018，4，1： | 14 |
| 2 | 基于硫酸为电解液的超级电容器木基活性炭电极材料的制备(英文)显示文摘以NaOH为活化剂,采用两步热化学过程制备出木基活性炭。将所制活性炭用作以硫酸为电解液的超级电容器电极材料。探讨了合成条件对活性炭孔结构和电化学性能。结果表明,在微孔中形成双电层电容,介孔和大孔则实现离子运输。在高的活化温度或高碱炭比下,材料被过度活化,导致高的介孔、大孔孔容,这增加了电解液的吸收,从而降低质量比电容。最佳的活性炭合成条件为,活化温度:600℃,碱炭比:1.25。 | Aleksandrs Volperts Galina Dobele Aivars Zhurinsh Darya Vervikishko Evgeny Shkolnikov Jurijs Ozolinsh | 2017 | 新型炭材料2017，32，4： | 11 |
| 3 | Electromechanical properties of Ce-doped(Ba_(0.85)Ca_(0.15))(Zr_(0.1)Ti_(0.9))O_(3)lead-free piezoceramics显示文摘Lead-free piezoceramics based on the(Ba,Ca)(Zr,Ti)O3(BCZT) system exhibit excellent electromechanical properties for low-temperature actuation applications, but suffer from relatively high processing temperatures. Here we demonstrate an approach for the reduction of the sintering temperature and simultaneous increase of the electromechanical strain response of(Ba,Ca)(Zr,Ti)O3 piezoceramics by aliovalent doping with Ce. The samples were prepared by solid state synthesis and their crystallographic structure, dielectric, ferroelectric, and electromechanical properties were investigated. The highest d33* value of 1189 pm/V was obtained for the sample with 0.05 mol% Ce, substituted on the A-site of the perovskite lattice. The results indicate a large potential of these materials for off-resonance piezoelectric actuators. | Raziye HAYATI Mohammad Ali BAHREVAR Yadolah GANJKHANLOU Virginia ROJAS Jurij KORUZA | 2019 | Journal of Advanced Ceramics2019，8，2： | 4 |
| 4 | Calibration and uniqueness analysis of microparameters for DEM cohesive granular material显示文摘The differential evolution(DE)algorithm was deployed to calibrate microparameters of the DEM cohesive granular material.4 macroparameters,namely,uniaxial compressive strength,direct tensile strength,Young’s modulus and Poisson’s ratio,can be calibrated to high accuracy.The best calibration accuracy could reach the sum of relative errors RE_(sum)<0.1%.Most calibrations can be achieved with RE_(sum)<5%within hours or RE_(sum)<1%within 2 days.Based on the calibrated results,microparameters uniqueness analysis was carried out to reveal the correlation between microparameters and the macroscopic mechanical behaviour of material:(1)microparameters effective modulus,tensile strength and normal-to-shear stiffness ratio control the elastic behaviour and stable crack growth,(2)microparameters cohesion and friction angles present a negative linear correlation that controls the axial strain and lateral strain prior to the peak stress,and(3)microparameters friction coefficient controls shear crack friction and slip mainly refers to the unstable crack behaviour.Consideration of more macroparameters to regulate the material mechanical behaviour that is dominated by shear crack and slip motion is highlighted for future study.The DE calibration method is expected to serve as an alternative method to calibrate the DEM cohesive granular material to its peak strength. | Songtao Ji Jurij Karlovšek | 2022 | International Journal of Mining Science and Technology2022，32，1： | 3 |
| 5 | Sensor fusion-based approach for the field robot localization on Rovitis 4.0 vineyard robot显示文摘This study proposed an approach for robot localization using data from multiple low-cost sensors with two goals in mind,to produce accurate localization data and to keep the computation as simple as possible.The approach used data from wheel odometry,inertial-motion data from the Inertial Motion Unit(IMU),and a location fix from a Real-Time Kinematics Global Positioning System(RTK GPS).Each of the sensors is prone to errors in some situations,resulting in inaccurate localization.The odometry is affected by errors caused by slipping when turning the robot or putting it on slippery ground.The IMU produces drifts due to vibrations,and RTK GPS does not return to an accurate fix in(semi-)occluded areas.None of these sensors is accurate enough to produce a precise reading for a sound localization of the robot in an outdoor environment.To solve this challenge,sensor fusion was implemented on the robot to prevent possible localization errors.It worked by selecting the most accurate readings in a given moment to produce a precise pose estimation.To evaluate the approach,two different tests were performed,one with robot localization from the robot operating system(ROS)repository and the other with the presented Field Robot Localization.The first did not perform well,while the second did and was evaluated by comparing the location and orientation estimate with ground truth,captured by a hovering drone above the testing ground,which revealed an average error of 0.005 m±0.220 m in estimating the position,and 0.6°±3.5°when estimating orientation.The tests proved that the developed field robot localization is accurate and robust enough to be used on a ROVITIS 4.0 vineyard robot. | Jurij Rakun Matteo Pantano Peter Lepej Miran Lakota | 2022 | International Journal of Agricultural and Biological Engineering2022，15，6： | 2 |
| 6 | Liquid chromatography-tandem mass spectrometry method for simultaneous quantification of bisoprolol,ramiprilat,propranolol and midazolam in rat dried blood spots显示文摘 | Jochen Springer Jurij Trontelj Jochen Springer | 2014 | Journal of chromatography2014，958，： | 1 |
| 7 | Fire simulation in road tunnels显示文摘 | Jurij Modie | 2003 | Tunnelling and Underground Space Technology2003，18，： | 1 |
| 8 | SWOT Analysis of Serbia and Montenegro's Accession to the EU 显示文摘 | Jurij Bajec Nikola Fabris Jelena Galic Svedana Mitrovic Marina Spasic | 2004 | Transition Studies Review2004，11，3： | 1 |
| 9 | Fire simulation in road tunnels显示文摘 | Modic Jurij | 2003 | Tunnelling and Underground Space Technology2003，18，： | 1 |
| 10 | Thermal vibrational anal- ysis for simply supported beam and clamped beam 显示文摘 | Jurij Avsec Maks Oblak | 2007 | Journal of Sound and Vibration2007，308，3： | 1 |
| 11 | Optimization of Multi-attribute User Modeling Approach显示文摘 | Matevz Pogacnik Jurij Tasic and Andrej Kosir | 2004 | International Journal of Electronics and Communications2004，，： | 1 |
| 12 | Fire simulation in road tunnels 显示文摘 | Jurij Modie | 2003 | Funnelling and Undergroud Space Technology2003，18，： | 1 |
| 13 | Disturbance history and dynamics of an old-growth mixed species mounta in forest in the Slovenian Alps 显示文摘 | Dejan F Thomas A N Jurij D | 2009 | Forest Ecology and Management2009，257，： | 1 |
| 14 | Fire simulation in road tunnels显示文摘 | Jurij Modic | 2006 | Tunneling and Un- derground Space Technology2006，，18： | 1 |
| 15 | The differential ant-stigmergy algorithm: an experimental evaluation and a real world application 显示文摘 | PETER K JURIJ S KLEMEN O | 2007 | Evolutionary Computation2007，9，： | 1 |
| 16 | Valve gear refinement 显示文摘 | Jurij A | 2002 | Journal of Mechanical Design Transactions of the ASME2002，124，1： | 1 |
| 17 | Green In- frastructure Development- Challenge of the Modern Urban Dy- namic Growth 显示文摘 | Grizans Jurijs Auzi Armands Vanags Jmis | 2012 | Economics & Business2012，22，： | 1 |
| 18 | Electromechanieal system frequency response e- qualization using three different methods显示文摘 | JURIJ P CUDINA M | 2007 | Mechanical Systems and Signal Processing2007，，21： | 1 |
| 19 | Riein显示文摘 | Olsnes S Jurij V Kozlov | 2011 | Toxieon2011，39，： | 1 |
| 20 | Fire simulation in road tunnels显示文摘 | Jurij Modic | 2003 | Tunnelling and Undergroud Space Technology2003，，18： | 1 |
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