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| 1 | Lignite oxidative desulphurization Notice 1.Process condition selection显示文摘The process of lignite desulphurization via its treatment by an oxidant(air or air–steam mixture)has been studied.The research objective was useful determination of steam application in oxidative lignite desulphurization.It has been proved that the water steam should be included in the oxidant composition to increase the hydrogen sulphide and combustible constituent content in the gases obtained during the processes under research.The impact of factors which affect the reactions between solid(in our case–lignite)and gaseous reagent(oxidant,i.e.air and or air–steam mixture)upon the research process has been investigated,if these reactions occur in the kinetic area.Such factors are linear rate of oxidant movement and coal grain size.The values of oxidant movement linear rate and coal grain size,which the reaction transfer from pyrite sulphur and organic content of lignite from diffusion into kinetic area occurs by,have been determined.Under these‘‘transfer’’conditions,the values of coefficients of oxidant mass transfer(β,m/s)as well as Sherwood criteria and boiling layer differences have been calculated. | Volodymyr Gunka Serhiy Pyshyev | 2014 | International Journal of Coal Science & Technology2014，1，1： | 8 |
| 2 | Lignite oxidative desulphurization. Notice 2: effects of process parameters显示文摘 | Volodymyr Gunka Serhiy Pyshyevt | 2015 | International Journal of Coal Science & Technology2015，2，3： | 4 |
| 3 | Laparoscopic approach to retrorectal cyst显示文摘Retrorectal cysts are rare benign lesions in the presacral space which are frequently diagnosed in middle-aged females. We report here our experience with two symptomatic female patients who were diagnosed as having a retrorectal cyst and managed using a laparoscopic approach. The two patients were misdiagnosed as having an ovarian cystic lesion after abdominal ultrasonography. Computer tomograghy (CT) scan was mandatory to establish the diagnosis. The trocar port site was the same in both patients. An additional left oophorectomy was done for a coexisting ovarian cystic lesion in one patient in the same setting. There was no postoperative morbidity or mortality and the two patients were discharged on the 5th and 6th post operative days, respectively. Our cases show that laparoscopic management of retrorectal cysts is a safe approach. It reduces surgical trauma and offers an excellent tool for perfect visualization of the deep structures in the presacral space. | Petra Gunkova Lubomir Martinek Jan Dostalik Igor Gunka Petr Vavra Miloslav Mazur | 2008 | World Journal of Gastroenterology2008，14，42： | 4 |
| 4 | Study of oxidative desulphurization process of coal with different metamorphism degrees显示文摘The oxidative desulphurization process of coal with different metamorphism degrees treated by an air-steam mixture has been studied.It has been shown that the pyrite present in black coal and anthracite is oxidized with the sulphur dioxide formation,and the process chemical mechanism does not depend on the quality of organic matter.The medium-metamorphized coal,capable of turning into a plastic state and cake in the range of investigated temperatures(350~450 ℃),is desulphurized with the greatest difficulty.The chemical mechanism dealing with the transformations of pyritic sulphur present in brown coal differs from similar processes taking place in black coal and anthracite,because FeS2 is converted with hydrogen sulphide formation at desulphurization. | S PYSHYEV V GUNKA Y PRYSIAZHNYI K SHEVCHUK A PATTEK-JANCZYK | 2012 | 燃料化学学报2012，40，2： | 4 |
| 5 | Lignite oxidative desulphurization: notice 3-process technological aspects and application of products显示文摘The study reviews the process of oxidative desulphurization of high-sulphur Ukrainian lignite, which was performed by coal treatment using an air or air-steam mixture. In the process. sulphur-free fuel and tar from the decomposition of coal organic matter was obtained. Hence, the sulphur in the coal was converted inlo hydrogen sulphide. The coal desulphurization process is critical to power generatio n. power generation and technology, and tech no logy field of application. The coal desulphurization process ensures the maximum recovery of the highest content of sulphur and hydrogen sulphide (H2S) in desulphurized gases at minimal energy costs. The process also enhances the maximum decomposition of tar and sulphur recovery (> 50%) during coal power generation. Based on smnniarized field studies, a block schematic diagram coupled with heat and material balances of the process was developed for the calculations. The application of the tech no logy at the first stage of coal combustion in thermal power plants will en able the utilizatio n of over 50% of recovered coal sulphur in the form of concentrated H2S or commercial elemental sulphur. This will, nevertheless, allow for a reduction of sulphur oxide pollution in the environment by at least 53%-56%. It has been suggested that the product of thermal decomposition of coal organic matter (tar) can be used as a componenl of fumace fuel oil or as a plasticizer of petroleum-based road bitumen. | Volodymyr Gunka Mariia Shved Yuriy Prysiazhnyi Serhiy Pyshyev Denis Miroshnichenko | 2019 | International Journal of Coal Science & Technology2019，6，1： | 1 |
| 6 | Long-term results of laparoscopic versus open surgery for nonmetastatic colorectal cancer显示文摘 | Gunka I Dostalik J Martinek L | 2012 | 2012，，02： | 1 |
| 7 | Impact of conversion on outcome in laparoscopic colorectal cancer surgery显示文摘 | Martinek L Dostalik J 6unkova P Gunka I Vavra P Zonca P | 2012 | Wideochir Inne Tech Malo Inwazyjne2012，7，2： | 1 |
| 8 | Long-term results of lapa-roscopic versus open surgery for nonmetastatic colorectal cancer显示文摘 | Gunka I Dostalik J Martinek L | 2012 | Acta Chir Belg2012，112，2： | 1 |
| 9 | Long-term results of laparoscopic versus open surgery for nonmetastatic colorectal cancer 显示文摘 | Gunka I Dostalik J Martinek L | 2012 | Acta Chir Belg2012，112，2： | 1 |
| 10 | Case report Laparo- scopic gastric resection with natural orifice specimen ex- traction for postulcer显示文摘 | Dostalik J Gunkova P Gunka I | 2014 | Pyloric Stenosis2014，16，10： | 1 |
| 11 | Laparoscopic surgery for rec- tal carcinoma-long-term outcomes显示文摘 | Martfnek L Dostalfk J Gunka I | 2009 | Rozhl Chir2009，88，11： | 1 |
| 12 | Advanced age-indication or contraindication for laparoscopic colorectal surgery显示文摘 | Gunka I Dostalik J Martinek L | | 0，，10： | 1 |
| 13 | Hemodynamic stability during labor and delivery with continuous epidural infusion 显示文摘 | Gerhardt MA Gunka VB Miller RJ | 2006 | JAOA2006，106，12： | 1 |
| 14 | Advanced age- indication or contraindication for laparoscopic colorectal surgery? 显示文摘 | Gunka I Dostalik J Martinek L | 2010 | Rozhl Chir2010，89，10： | 1 |
| 15 | Cyclic di-AMP homeo- stasis in bacillus subtilis: both lack and high level accumula- tion of the nucleotide are detrimental for cell growth显示文摘 | Mehne FM Gunka K Eilers H | 2013 | J Biol Chem2013，288，3： | 1 |
| 16 | Long-term results of laparo- scopic versus open surgery for non-metastatic colorectal cancer显示文摘 | Gunka I Dostalik J Martinek L | 2012 | Acta Chir Belg2012，112，2： | 1 |
| 17 | Laparoscopic surgeryfor rectal carcinoma -long -term outcomes 显示文摘 | Martlnek L Dostallk J Gunka I | 2009 | Rozhl Chir2009，88，11： | 1 |
| 18 | Long- term results of lap-aroscopic versus open surgery for nonmetastatic colorectal cancer显示文摘 | Gunka I Dostalik J Martinek L> | 2012 | Acta Chir Belg’2012，112，2： | 1 |
| 19 | Laparoscopic surgery for rectalcarcinoma-long-term outcomes 显示文摘 | Martinek L Dostalik J Gunka I | 2009 | Rozhl Chir2009，88，11： | 1 |
| 20 | Long--term results of laparo- scopic versus open surgery for nonmetastatic colorectaI cancer显示文摘 | Gunka I DostrdikJ Martinek L | 2012 | 112(2):139-1472012，112，2： | 1 |
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