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Changes in Physical and Chemical Soil Characteristics as a Result of Subsurface Tile Drainage

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Open Journal of Soil Science 2017年第12期7卷 367-377页

作者： Jan Vopravil Tomás Khel petr Vráblík Jaroslava Vráblíková Department of Soil Science Research Institute for Soil and Water ConservationZabovreskaCzech Republic Department of Natural Sciences Faculty of EnvironmentJ.E.Purkyne University in Ustínad LabemKralovavysinaUstínad LabemCzech Republic

This project defined changes in soil properties after construction of subsurface tile drainage. We compared the physical and chemical properties of soil samples taken before construction of drainage and new soil samples taken from identical sites at present. The research was made for Stagnic Cambisols (Dystric) and Haplic Stagnosols. The pH value and saturation of the topsoil sorption complex of both soil types statistically increased and simultaneously the cation exchange capacity (CEC) decreased. In the topsoil of Stagnosols, the effective cation exchange capacity and porosity also decreased, and at the same time the particle density and bulk density increased. Soil organic matter and minimum air capacity increased in the topsoil of Cambisols. Porosity and minimum air capacity increased in both soils in the subsoil. In the Cambisol subsoil, the CEC and bulk density decreased. We can assume that after drainage Stagnosols are susceptible to soil compaction, especially in topsoil.

关键词： Soil Drainage Soil Characteristics Land Use Change

莫迪维克通过科尔摩根技术实现了气动到电气的转换

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伺服控制 2014年第4期 22-23页

作者： petr Osipov 德国拉廷根市科尔摩根公司电机产品管理部

在包装机行业，越来越多的公司开始选用电气伺服技术——主要是为了取代以前通过气动系统来控制运动轴，“伺服技术提高了操控性并降低了噪音排放，这些系统还帮助我们加快了生产周期”，莫迪维克公司首席技术官Guido Spix在最近一次包... 详细信息

在包装机行业，越来越多的公司开始选用电气伺服技术——主要是为了取代以前通过气动系统来控制运动轴，“伺服技术提高了操控性并降低了噪音排放，这些系统还帮助我们加快了生产周期”，莫迪维克公司首席技术官Guido Spix在最近一次包装展中强调到。该包装机公司采用科尔摩根公司的运动控制解决方案来减少能源消耗，提高整机效能，并加强包装过程的安全性。

关键词：气动系统摩根技术电气伺服技术运动控制包装机生产周期能源消耗

Using Statistical Methods for Rock Parameter Identification to Analyse the THM Behaviour of Callovo-Oxfordian Claystone due to Heating

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Journal of Geological Resource and Engineering 2016年第3期4卷 125-136页

作者： Michael Jobmann Sha Li Mirko Polster Michael Breustedt Roger Schlegel petr Vymlatil JohannesWill D B E TECHNOLOGY Gmb H Eschenstrasse 55 P eine D-31224 Germany Dynardo GmbH Steubenstrasse 25 Weimar 99423 Germany

In the framework of a heater experiment at the Meuse/Haute-Marne rock laboratory, DBE TECHNOLOGY and Dynardo performed an analysis of the rock behaviour in response to heating. New approaches describing rock permeability as a function of stress and plastic strain were used, and statistical methods for parameter identification were applied. The methods comprise automatic sensitivity analysis and optimization algorithms that allow a parameter fitting and an analysis of the importance of individual parameters for the general system development. The identification process resulted in a parameter set that allows a good description of the rock behaviour while being heated.

关键词： Claystone parameter identification sensitivity analysis permeability pore pressure optimization.

Azithromycin in a triple therapy for *** eradication in active duodenal ulcer

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World Journal of Gastroenterology 2002年第5期8卷 879-882页

作者： Vladimir T.Ivashkin Tatiana L.Lapina Oksana Yu.Bondarenko Olga A. Sklanskaya petr Va.Grigoriev Yuri V.Vasiliev Emilia P.Yakovenko Pavel V.Gulyaev Valeri I.Fedchenko V.Vasilenko Clinic of internal diseases gastroenterology and hepatology of the Moscow Sechenov Medical Academy119881 Pogodinskaya 5MoscowRussia Pathology Department of the Moscow Sechenov Medical Academy 119881Trubetskaya 8MoscowRussia Gastroenterological Center of the Health Ministry of Russia 105203N.Pervomayskaya ul.70MoscowRussia Central Institution of Gastroenterology 111123Sh.Entusiastov 86MoscowRussia

AIM:To assess and compare the efficacy and safety of two triple regimes:A)metronidazole,amoxicillin and omeprazole, which is still widely used in Russia,and B)azithromycin, amoxicillin and omeprazole in healing active duodenal ulcer and *** eradication. METHODS:100 patients with active duodenal ulcer were included in the open,multicentre,randomized study with comparative *** were randomly assigned to one of the following one-week triple regimes:A) metronidazole 500 mg bid,amoxicillin I g bid and omeprazole 20 mg bid(OAM,n=50)and B)azithromycin 1 god for the first 3 days(total dose 3 g),amoxicillin 1 g bid and omeprazole 20 mg bid(OAA,n=50).Omeprazole 20 mg od was given after the eradication course as a monotherapy for three *** control endoscopy was performed 8 weeks after the *** was determined in the entry of the study and four weeks after the cessation of treatment by means of histology and CLO-test. RESULTS:97 patients completed the study according to the protocol(1 patient of the OAM group did not come to the control endoscopy,2 patients of the OAA group stopped the treatment because of mild allergic urticaria).Duodenal ulcers were healed in 48 patients of the OAM group(96 %, C190.5-100 %)and in 46 patients of the OAA group(92 %, CI 89.5-94.5 %)(p=ns).*** was eradicated in 15 out of 50 patients with OAM(30 %,CI 17-43 %)and in 36 out of 50 patients treated with OAA(72 %;CI 59-85 %) (P<0.001)-ITT ***: The triple therapy with omeprazole, amoxicillin and metronidazole failed to eradicate ***'vc\ the majority of patients, which is an essential argument to withdraw this regimen out of the national recommendations. Macrolide with amoxicillin are preferable to achieve higher eradication rates. Azithromycin (1 g od for the first 3 days) can be considered as a successful component of the triple PPI-based regimen.

关键词： Helicobacter pylori Adolescent Adult Aged Amoxicillin dosage Anti-Bacterial Agents Anti-Ulcer Agents Azithromycin Comparative Study Drug Therapy, Combination Duodenal Ulcer Female Helicobacter Infections Humans Male Metronidazole Middle Aged Omeprazole Penicillins Research Support, Non-U.S. Gov't Treatment Outcome

Kinetics of catalytic separation of pure hydrogen from synthesis gas using an ethanol dehydrogenation/acetaldehyde hydrogenation Loop

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Kinetics of catalytic separation of pure hydrogen from synth...

Continuous Production of Butanol by Bacteria of Genus Clostridium

第九届全国氢能学术会议

作者： C.Eric C.petr E.William University of Waterloo

＜正＞A novel catalytic process for producing high-purity,elevated-pressure hydrogen from synthesis gas is *** process consists of a loop containing two complementary reactions:ethanol dehydrogenation and acetaldehyde *** one part of the loop, hydrogen is produced by dehydrogenation of ethanol to *** acetaldehyde is a

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Journal of Chemistry and Chemical Engineering 2011年第2期5卷 121-128页

作者： petra Patakova Jakub Lipovsky Leona Paulova Michaela Linhova petr Fribert Mojmir Rychtera KarelMelzoch Department of Fermentation Chemistry and Bioengineering Institute of Chemical Technology Prague CZ 16628 Prague 6 CzechRepublic

Performance of continuous 1-butanol production process by Clostridium bacteria is complicated by alternation of acidogenic and solventogenic phases during fermentation what correlates with culture growth and sporulation, respectively. However, the strain Clostridium pasteurianum NRRL B598 showed diverse pattern of solvents production when butanol production started during exponential growth phase in batch cultivation. If cultivated under glucose limited conditions with dilution rate 0.03 hl, constant product concentration was almost achieved. By contrast, glucose non-limited continuous experiment operated with dilution rate 0.07 h-1 lead to mutually adverse oscillations of product and glucose concentrations. Regarding the process economy, glucose limited continuous cultivation seems to be superior due to utilization of total supplied glucose amount, advantageous butanol/acetone ratio and higher butanol yield.

关键词： 1-butanol acetone-butanol-ethanol (ABE) fermentation Clostridiumpasteurianum continuous process

Chemical Composition and Mechanical Characteristic of Nitrogen Ion Beam Mixed Carbon Nanolayer

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Journal of Chemistry and Chemical Engineering 2014年第5期8卷 488-492页

作者： Frantisek Cemy petr Vlcak Janez Kovac Josef Sepitka Martin Klima Libor Dvorak Department of Physics Faculty of Mechanical Engineering Czech Technical University in Prague Prague 16607 CzechRepublic Department of Surface Engineering and Optoelectronics Jozef Stefan Institute Ljubljana 1001 Slovenia

Ion beam methods for modification of nanohardness of surface nanolayers of the titanium alloy Ti6AI4V were applied. After deposition of carbon nanolayers by electron beam evaporation, the ion implantation of nitrogen into samples was carried out. The chemical composition of the modified surface area was investigated by AES （auger electron spectroscopy）. The nanohardness of resulted ion beam modified surface nanolayers were investigated by nanoindentation testing. The measured concentration profiles indicate the atomic mixing of carbon into the substrate. It was found that the modified samples had a markedly higher nanohardness than the unmodified samples. The increased nanohardness is attributed to the newly created phases in the surface area.

关键词： Nanocomposite carbon thin film electron beam evaporation ion implantation.

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数学模拟在玻璃电助熔窑的应用经验

玻璃与搪瓷 2007年第F8期35卷 35-38,100页

作者： petr Schill 唐伟捷克玻璃服务有限公司玻璃服务中国公司山东青岛266000

玻璃厂的主要目的是在降低生产费用的同时保持或提高玻璃的质量。其中一个有效的方法就是在当前熔窑上安装电助熔或建新窑时带电助熔。该思路或许令人感到惊讶,因为通常来说电的价格要远远高于气或油的价格(从能量单价考虑),但是从能量... 详细信息

玻璃厂的主要目的是在降低生产费用的同时保持或提高玻璃的质量。其中一个有效的方法就是在当前熔窑上安装电助熔或建新窑时带电助熔。该思路或许令人感到惊讶,因为通常来说电的价格要远远高于气或油的价格(从能量单价考虑),但是从能量利用的效率来看(通过焦耳热直接给玻璃加热)它还是比较有效的。本文介绍了CFD模型在电助熔设计当中的应用。GS玻璃熔窑模型(GS-GFM)被用来研究最佳的电极排布和相位调整,以及电助熔使用期间提高玻璃的质量。

关键词：玻璃熔窑玻璃熔化 CFD 模拟电助熔

Predictability of the Consistency of Porridges Using Mixtures of Different Flours

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Food and Nutrition Sciences 2013年第9期4卷 933-939页

作者： Irene S. T. de Carvalho Yvonne Granfeldt Ann-Charlotte Eliasson petr Dejmek Department of Chemical Engineering Eduardo Mondlane University Maputo Mozambique Department of Food Technology Engineering and Nutrition Lund University Lund Sweden. Department of Food Technology Engineering and Nutrition Lund University Lund Sweden.

The purpose of this study was to investigate the predictability of the consistency of blended porridges based on the volume fractions of separate porridges made from orange-fleshed sweet potato, cowpea, dehulled soybean, dehulled sorghum and maize flour (dehulled, commercial and germinated). Accurate predictions could be made for 13 of the 21 blends investigated. The consistency of porridge consisting of mixtures of cowpea with orange-fleshed sweet potato, and cowpea with dehulled soybean was lower than expected, and was attributed to the different size distributions of the swollen flour particles. Blends containing germinated maize showed significantly lower consistency than expected in both porridges with starchy continuous phase and porridges with proteinaceous continuous phase. It was thus concluded that both amylolytic and proteolytic activity are of importance in the ameliorating effects of germinated maize.

关键词： Back-Extrusion Consistency Flour Mixtures Porridge