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| 1 | Modeling of PD Mechanism in Non-uniform Field at High Pressure显示文摘Partial discharges in air in non-uniform electric field occur in surroundings made of high curvature elements.The equivalent electrode system,needle-plane refers both to external components of high voltage insulating systems and to micro sharpness in the internal structure of those systems.The ionization zone,accumulation of space charge and formation of corresponding current pulses depend on electrode configuration,voltage level,pressure,temperature and humidity of air.The assessment of pressure influence on discharge mechanism in non-homogenous electric field has been performed on the basis of empirical density distributions of discharge charges at different voltage levels,electrode distance,curvature of high voltage electrode and taking into account solid dielectric barrier in serial configuration.The measurement results obtained at variable voltage level yield the influence of electric field strength in the needle electrode zone.While increasing voltage,a deviation from normal distribution may be observed that reveals other forms of discharge. | B. Florkowska M. Florkowski J. Roehrich P. Zydron | 2008 | 高电压技术2008，34，12： | 3 |
| 2 | Influence of Series Choke on Damping of Switching Transients in Distribution Transformers显示文摘Distribution transformers operating in modern system grids or in industrial networks are subjected to many switching transients,which may occur due to routine operations,network reconfigurations or as reaction on protection signals.Depending on the network configuration and parameters,such events may lead to external overvoltages and result in additional stresses on the insulation system.This paper presents the influence of a series choke on damping of switching transients in distribution transformers.The impact of the choke is assessed by both amplitude and rise time reduction.The suppression of the transient rise time is shown for a test configuration involving distribution transformers connected to low loss cable lines and a medium voltage breaker.Such phenomena are especially typical for industrial networks where switching operations are very frequent.Both simulation and experiment results are given.Simulation results as well as measurement results confirmed that switching events can lead to high dU/dt and in consequence,can have adverse impacts on insulation system.Voltage escalation during switching event is strongly related with system conditions.The results obtained for presented mitigation method are promising and indicate significant dU/dt reduction as well as number of ignitions and voltage peak value.The protection of distribution transformers with a series choke is a new approach dedicated to environments prone to the occurrence of transients with high steepness.Experimental results show that the application of serial choke with suitable parameters realizes the reduction of dU/dt at the machines terminal from 24 kV/μs to 5 kV/μs,as well as the reduction of voltage peak value from 10 kV to 5 kV.The number of ignitions is also reduced. | Marek Florkowski Marek Fulczyk Wojcicch Piasecki Magdalena Ostrogorksa Pawet Klyrs Jakub Furgat | 2013 | 高电压技术2013，39，10： | 3 |
| 3 | Surface discharge imaging in presence of deposited space charges in non-uniform DC electric field显示文摘An investigation is made of the influence of an accumulated charge sprinkled on the surface of an epoxy resin plate in corona mode on partial discharge inception and its forms as analyzed by optical imaging at DC voltage.The effects of the polarities of both the deposited hetero-and homocharges were investigated.The occurrence of first streamer discharges was detected electrically and observed by optical imaging.The various forms of streamers were acquired by optical imaging and associated with the polarity and intensity of the accumulated surface charges.Surface charge sprinkling on the epoxy specimen surface was quantitatively evaluated by surface charge mapping.In addition,the effect of the subsequent discharges occurring in a heterocharge configu-ration above the inception voltage was observed.In terms of their directions and lengths,the kinetics of the streamer filaments revealed a strong dependence on both the polarity and the intensity of an accumulated charge.Compared with the reference charge-free surface,the strongest drop in dielectric strength in the interelectrode space with a sprinkled charge was obtained for the heterocharge configuration.The presented results provide a contribution to the assessment of streamer behaviour in the presence of accumulated surface charges,including its polarity and intensity. | Marek Florkowski Dariusz Krześniak Maciej Kuniewski PawełZydroń | 2021 | High Voltage2021，6，4： | 2 |
| 4 | Trazodone and venlafaxine in treatment of depressive disorders显示文摘 | Florkowski A Gruszczynski W Galecki P er al | 2005 | Pol Merkuriusz Lek2005，18，107： | 1 |
| 5 | The performances of the Cock-Croft-Gauh, Modification of Diet in Renal Disease Study and Chronic Kidney Disease Epidemiology Collaboration equations in predicting gentamicin clearance 显示文摘 | Chin PKL Florkowski CM Begg EJ | 2013 | Ann Clin Biochem2013，50，6： | 1 |
| 6 | Estimating renal function in oncology patients using cystatin C based equations 显示文摘 | Chew J S Saleem M Florkowski C M | 2009 | Clin Oncol (R Coll Radiol)2009，21，5： | 1 |
| 7 | Cystatin-C- a para digm of evidence based laboratory medicine 显示文摘 | Chew JS Saleem M Florkowski CM | 2008 | Clin Biochem Rev2008，29，2： | 1 |
| 8 | International Human Resource Management:Review and Critique显示文摘 | BUDHWAR P S FLORKOWSKI G W | 2002 | International Journal of Management Reviews2002，4，1： | 1 |
| 9 | Mitigating ferroresonance in voltage transtbrmers in ungrounded MV networks 显示文摘 | Piasecki W Florkowski M Fulczyk M | 2007 | IEEE Trans on Power Delivery2007，22，4： | 1 |
| 10 | Coenzyme Q10 : an independent predictor of mortality inchronic heart failure 显示文摘 | MOLYNEUX S L FLORKOWSKI C M GEORGE P M | 2008 | J Am Coll Cardiol2008，52，18： | 1 |
| 11 | The Evolution of the Pricing Mechanism in the Polish Vegetable Markets: An Empirical Test显示文摘 | FLORKOWSKI W J ELNAGHEEB A H | 1993 | Review of Agricultural Economics1993，15，1： | 1 |
| 12 | What is the best predictor of the atherogenic LDL subclass phenotype 'pattern B' in patients with type 2 diabetes mellitus显示文摘 | King RI Florkowski CM Yeo J | 2011 | Ann Clin Biochem2011，48，2： | 1 |
| 13 | Snowmeh runoff from measurements of tritium and oxygen-18 显示文摘 | Dincer T Payen B R Florkowski T | 1970 | Water Resources Research1970，6，1： | 1 |
| 14 | The Organizational Impact of Profit Sharing显示文摘 | FLORKOWSKI G W | 1987 | Academy of Management Review1987，12，4： | 1 |
| 15 | All-cause mortality in insulin-treated diabetic patients:a 20-year follow-up显示文摘 | Dawson S I Willis J Florkowski CM | | 0，，01： | 1 |
| 16 | What is the best predictor of the atherogenic LDL subclass phenotype 'pattern B' in patients with type 2 diabetes mellitus显示文摘 | King RI Florkowski CM Yeo J | 2011 | Ann Clin Biochem2011，48，2： | 1 |
| 17 | Cystatin C a paradigm of evidence based laboratory medicine显示文摘 | Chew JS Saleem M Florkowski CM | 2008 | Clin Biochem Rev2008，29，2： | 1 |
| 18 | Trazodone and venlafaxine in treatment of depressive disorders 显示文摘 | Florkowski A Gruszezynski W Galeeki P | 2005 | Pol Merkuriusz Lek2005，18，107： | 1 |
| 19 | Diurnal variability of 813C and δ18O of atmospheric CO2 in the urban atmosphere of Krakew, Poland 显示文摘 | Zimnoch M Florkowski T Necki J M | 2004 | Isotopes in Environmental and Health Studies2004，40，2： | 1 |
| 20 | Will- ingness to Pay for Environmental Practices: Implications for Eco-labeling显示文摘 | Moon W Florkowski W J Bruckner B | 2002 | Land Economics2002，，1： | 1 |
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