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A RESTful proxy and data model for linked sensor data

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International Journal of Digital Earth 2013年第3期6卷 233-254页

作者： krzysztof Janowicz Arne Broring Christoph Stasch Sven Schade Thomas Everding Alejandro Llaves Department of Geography University of CaliforniaSanta BarbaraCAUSA North Initiative for Geospatial Open Source Software MunsterGermany Faculty ITC University of TwenteEnschedeTheNetherlands Institute for Geoinformatics University of MunsterMunsterGermany Joint Research Centre Institute for Environment and SustainabilityIspraItaly

The vision of a Digital Earth calls for more dynamic information systems,new sources of information,and stronger capabilities for their *** networks have been identified as a major information source for the Digital Earth,while Semantic Web technologies have been proposed to facilitate *** far,sensor data are stored and published using the Observations&Measurements standard of the Open Geospatial Consortium(OGC)as data *** the advent of Volunteered Geographic Information and the Semantic Sensor Web,work on an ontological model gained importance within Sensor Web Enablement(SWE).In contrast to data models,an ontological approach abstracts from implementation details by focusing on modeling the physical world from the perspective of a particular *** restrict the interpretation of vocabularies toward their intended *** ongoing paradigm shift to Linked Sensor Data complements this *** questions have to be addressed:(1)how to refer to changing and frequently updated data sets using Uniform Resource Identifiers,and(2)how to establish meaningful links between those data sets,that is,observations,sensors,features of interest,and observed properties?In this paper,we present a Linked Data model and a RESTful proxy for OGC’s Sensor Observation Service to improve integration and inter-linkage of observation data for the Digital Earth.

关键词： Digital Earth geospatial data integration spatial data infrastructure earth observation data exchange models linked data semantic enablement

Effects of a variety of cutting fluids administered using the minimum quantity lubrication method on the surface grinding process for nickel-based alloys

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2017年第9期18卷 728-740页

作者： Ryszard WOJCIK krzysztof NADOLNY Instimte of Machine Tools and Production Engineering Lodz University of Technology Stefanowskiego 1/15 90-924 Lodz Poland Department of Production Engineering Koszalin University of Technology Raclawicka 15-17 75-620 Koszalin Poland

This paper presents the characteristics of nickel-based alloys, alongside their division into groups, and describes thefeatures that make such materials difficult to grind. The possibilities of exerting a positive influence upon machining conditions,especially through the proper application of grinding fluids, are briefly presented. Both the precise methodologies for, and theresults of, the experimental tests carried out on flat surfaces are also detailed. The aim of these tests was to determine the influenceof the application of two types of grinding liquid （Ecocut Mikro Plus 82 and Biocut 3000） upon the grinding force values andsurface roughness of the machined workpieces made from three nickel alloys （Nickel 201, INCONEL~ alloy 600, and MONEL^alloy 400）. An additional goal of the tests was to determine the influence of grinding wheel structure on the course and results ofthe machining process. The results indicate that the physical and chemical properties of Biocut 3000 enabled the most advanta-geous properties of the machined surface roughness, alongside a simultaneous increase in grinding power, when compared to theresults when applying Ecocut Mikro Plus 82. The results showed an almost inversely proportional dependence upon the specifictangential grinding force Ft＇ and arithmetic mean deviation of the surface profile Ra values, especially in cases of machining Nickel201 and INCONEL alloy 600. The original traverse grinding methodology used in the tests made it possible to assess the changesof the grinding conditions within the conventionally selected zones.

关键词： Nickel-based alloys Surface grinding Minimum quantity lubrication Hard-to-cut materials Grinding force Surface roughness

Concentration of Selected Elements in the Tissues of the Knee Joint

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Biomedical and Environmental Sciences 2020年第10期33卷 807-811页

作者： BABUSKA-ROCZNIAK Magdalena BRODZIAK-DOPIERALA Barbara MITKO krzysztof CIPORA Elzbieta ROCZNIAK Wojciech The Jan Grodek State University in Sanok Medical Institute38-500 SanokPoland Department of Toxicology and Bioanalysis Faculty of Pharmaceutical ScienceMedical University of Silesia41-200 SosnowiecPoland Central Mining Institute The Laboratory of Water and Sewage Analyses40-166 KatowicePoland

The remodeling processes that occur in bone tissue allow for proper functioning and can lead to the inclusion of additional elements,including toxic ones,in the remodeled *** condition in turn affects the metabolic processes in the bond,which may result in disturbances to the bone-joint system,as manifested by changes in bone tissue and other organs[1].

关键词： organs remodeling bone

Crossover to PDT after the unsuccessful micropulse laser treatment of central serous chorioretinopathy

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Advances in Ophthalmology Practice and Research 2024年第1期4卷 32-38页

作者： Maciej Gawęcki krzysztof Kicinski Andrzej Grzybowski Dobry Wzrok Ophthalmological Clinic 80-822GdanskPoland Department of Ophthalmology Pomeranian Hospitals in Wejherowo84-200WejherowoPoland Institute for Research in Ophthalmology Foundation for Ophthalmology DevelopmentPoznanPoland

Purpose:Subthreshold micropulse laser(SML)and photodynamic therapy(PDT)are among the most effective therapeutic modalities applied to central serous chorioretinopathy(CSCR).This study aimed to evaluate the ef-ficacy and durability of PDT in CSCR cases unresponsive to at least two SML ***:The study included 26 consecutive eyes of 24 patients(21 males and three females)with chronic *** all cases,a lack of reduction in subretinal fluid(SRF)levels was noted after at least two consecutive SML *** parameters of best corrected visual acuity(BCVA)and spectral domain optical coherence tomog-raphy(SD-OCT)were evaluated at baseline and 1,3 and 12 months ***:The mean duration of symptoms in the group was 53.81±39.48 months,the mean age of the patients was 49.26±12.91 years,and the mean subfoveal choroidal thickness(SFCT)was 572.11±116.21 *** resorption of SRF was observed in 21 out of 26 eyes(80.77%)at 1 month and sustained in 18 cases(69.23%)at 12 *** 12 months,in the sustained group,BCVA improved significantly from 0.39±0.18 to 0.19±0.2 logMAR(P=0.01),central subfoveal thickness(CST)reduced from 316.44±75.83 mm to 197.67±22.99 mm(P<0.0001),and SFCT reduced from 579.28 mm to 446.78 mm(P<0.0001).Conclusions:PDT provides the opportunity for the successful treatment of CSCR unresponsive to SML *** are possible even in cases with a long duration of symptoms and significant alterations in retinal ***,PDT should be considered for patients with prominently increased choroidal thickness.

关键词： Photodynamic therapy Subthreshold micropulse laser Central serous chorioretinopathy Sybretinal fluid

Use of the finite elements method for modelling the dynamic load impact on hydraulic leg equipped with gas accumulator

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Journal of Coal Science & Engineering(China) 2008年第2期14卷 171-175页

作者： GONDEK Horst MAZUREK krzysztof SZWEDA Stanislaw VB-Technical University of Ostrava Ostrava 70833Czech Republic KOMAG Mining Mechanization Centre GliwicePoland Mining and Geology Department Silesian University of TechnologyGliwicePoland

Procedures of preparation of numerical analysis,consisting in a simulation of cooperation of three different media: steel,liquid and gas undergoes dynamic load were *** of the initial static load of the mechanical system was *** using the *** products the following exemplary computer simulations were made: dynamic load impact on the hydraulic leg as well as effectiveness of the hydraulic leg protection against overload with help of gas accumulator.

关键词： finite elements dynamic load hydraulic leg equipped gas accumulator

Liver steatosis correlates with iron overload but not with HFE gene mutations in chronic hepatitis C

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Hepatobiliary & Pancreatic Diseases International 2013年第4期12卷 377-384页

作者： Katarzyna Sikorska Piotr Stalke Tomasz Romanowski Robert Rzepko krzysztof Piotr Bielawski Department of Infectious Diseases Medical University of GdanskSmoluchowskiego 18 80-214 Gdansk Poland Department of Biotechnology Intercollegiate Faculty of Biotechnology University of Gdansk and Medical University of GdanskKladki 24 80-822 Gdansk Poland Department of Pathology Medical University of GdanskDebinki 7 80-952 Gdansk Poland

BACKGROUND: Liver steatosis and iron overload, which are frequently observed in chronic hepatitis C (CHC), may contribute to the progression of liver injury. This study aimed to evaluate the correlation between liver steatosis and iron overload in Polish patients with CHC compared to non- alcoholic fatty liver disease (NAFLD) and HFE-hereditary hemochromatosis (HH) patients. METHODS: A total of 191 CHC patients were compared with 67 NAFLD and 21 HH patients. Liver function tests, serum markers of iron metabolism, cholesterol and triglycerides were assayed. The inflammatory activity, fibrosis, iron deposits and steatosis stages were assessed in liver specimens. HFE gene polymorphisms were investigated by PCR-RFLP. RESULTS: Liver steatosis was associated with obesity and diabetes mellitus. This disease was confirmed in 76/174 (44%) CHC patients, most of whom were infected with genotype 1. The average grade of steatosis was higher in NAFLD patients. CHC patients had significantly higher iron concentrations and transferrin saturations than NAFLD patients. Compared with CHC patients, HH patients had higher values of serum iron parameters and more intensive hepatocyte iron deposits without differences in the prevalence and intensity of liver steatosis. In the CHC group, lipids accumulation in hepatocytes was significantly associated with the presence of serummarkers of iron overload. No correlation between the HFE gene polymorphism and liver steatosis in CHC patients was found. CONCLUSIONS: Liver steatosis was diagnosed in nearly half of CHC patients, most of whom were infected with genotype 1. The intensity of steatosis was lower in CHC patients than that in NAFLD patients because of a less frequent diagnosis of metabolic syndrome. Only in CHC patients were biochemical markers of iron accumulation positively correlated with liver steatosis; these findings were independent of HFE gene mutations.

关键词： hepatitis C virus iron overload fatty liver hemochromatosis metabolic syndrome X

What's new in hepatitis C virus infections in children?

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World Journal of Gastroenterology 2015年第38期21卷 10783-10789页

作者： Malgorzata Pawlowska krzysztof Domagalski Anna Pniewska Beata Smok Waldemar Halota Andrzej Tretyn Department of Paediatric Infectious Diseases and Haepatology Faculty of MedicineCollegium Medicum BydgoszczNicolaus Copernicus University Centre for Modern Interdisciplinary Technologies Nicolaus Copernicus University Department of Plant Physiology and Biotechnology Nicolaus Copernicus University

The number of hepatitis C virus(HCV) infection cases is relatively low in children. This low number may be connected with the lack of screening tests and the asymptomatic course of infection. Currently,mother-toinfant transmission is the most common cause of HCV infection amongst children in developed countries. It is important to introduce routine screening tests for HCV in pregnant women. The risk of vertical transmission of HCV is estimated at approximately 5%(3%-10%). Currently,we do not have HCV transmission prevention methods. Some factors could potentially be eliminated by elective caesarean section. Currently,the method of prevention of perinatal HCV infection is the early identification and effective treatment of infections in young women in the preconception period. We describe genetic tests(IL-28 B single nucleotide polymorphisms) to identify children with an increased chance of spontaneous clearance or sustained virologic response achievement and vitamin D level as a potential predictor of treatment response in children. It is also important to develop non-invasive tests that can predict liver fibrosis. The existence of differences in the mechanisms leading to liver injury between children and adults creates new perspectives of action to reduce liver disease progression in children in the early years of life.

关键词： Hepatitis C virus Infection in children Single nuc

Robust and highly efficient electrocatalyst based on ZIF-67 and Ni^(2+) dimers for oxygen evolution reaction:In situ mechanistic insight

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Journal of Energy Chemistry 2023年第11期86卷 263-276,I0006页

作者： Anna Dymerska Bartosz Środa krzysztof Sielicki Grzegorz Leniec Beata Zielińska Rustem Zairov Renat Nazmutdinov Ewa Mijowska Department of Nanomaterials Physicochemistry Faculty of Chemical Technology and EngineeringWest Pomeranian University of TechnologySzczecinPiastów Ave.1771-065 SzczecinPoland Department of Technical Physics Faculty of Mechanical Engineering and MechatronicsWest Pomeranian University of Technology in Szczecinal.Piastów 4870-311 SzczecinPoland A.M.Butlerov Institute of Chemistry Kazan Federal UniversityKazan4200081/29 Lobachevskogo str.Russian Federation Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific CenterRussian Academy of Sciences420088Arbuzov str.8KazanRussian Federation Kazan National Research Technological University 420015 KazanK.Marx Str.68Russian Federation

Electrochemical water splitting is a straightforward process that involves two distinct reactions:the oxygen evolution reaction(OER)which produces oxygen(O_(2))and the hydrogen evolution reaction(HER)which generates hydrogen(H_(2)).However,in the whole process,the OER is a bottleneck as it requires more energy than a four-electron reaction involving critical raw materials(such as RuO_(2)or IrO_(2))as ***,here,we address the challenge of erratic kinetics/limited durability of OER in water electrolysis,In this paper,we demonstrate that the deposition of ultrasmall amounts of nickel(Ⅱ)nitrate in zeolitic imidazolate framework-67(ZIF-67)can be used as a general approach to enhance the electrocatalytic performance of the *** investigated the influence of Ni(NO_(3))·x6H_(2)O loading on ZIF-67(from 0.1 to 0.0001 M)and found that ZIF-67 enriched with only 0.001 M of Ni(NO_(3))2·x6H_(2)O(ZIF-670.001 Ni)exhibited massive promotion in *** ZIF-670.001 Ni showed a large specific surface area of 2577 m^(2)g^(-1),a low overpotential of 299 mV,a lower Tafel slope of 94.1 mA dec^(-1),and an outstanding overpotential retention of 99.8%(at 50 mA cm^(-2)).By conducting electron paramagnetic resonance(EPR)measurements,we also discovered that the 0.001 M of Ni(NO_(3))_(2)·x6H_(2)O loading in ZIF-67 introduces Ni^(^(2+))dimers,which contribute to the enhanced electroactivity of the modified *** phenomenon was further revealed during density-functional theory(DFT)calculations,which allowed us to identify different possible forms of Ni^(^(2+))dimers and modeling of active *** with in situ experiments,we provide mechanistic insight into the OER mechanism under alkaline conditions and found that it follows the lattice oxygen mechanism(LOM).Our study proposes a facile and efficient room-temperature route to boost the electrochemical performance of ZIF-67 in *** the first time,we demonstrate that modifying ZIF-67 with an ultrasmall amoun

关键词： ZIF-67 Oxygen evolution reaction Nickel(Il)nitrate Electrocatalysis

Iron overload and HFE gene mutations in Polish patients with liver cirrhosis

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Hepatobiliary & Pancreatic Diseases International 2011年第3期10卷 270-275页

作者： Katarzyna Sikorska Piotr Stalke Tomasz Romanowski Ewa Izycka-Swieszewska krzysztof Piotr Bielawski Department of Infectious Diseases Medical University of Gdanskul.Smoluchowskiego 1880-218 GdanskPoland Department of Biotechnology Intercollegiate Faculty of BiotechnologyUniversity of Gdansk and Medical University of Gdanskul.Kladki 2480-822 GdańskPoland Department of Pathology Medical University of Gdanskul.Debinki 780-952 GdanskPoland

BACKGROUND:Increased liver iron stores may contribute to the progression of liver injury and fibrosis,and are associated with a higher risk of hepatocellular carcinoma ***-transplant symptoms of iron overload in patients with liver cirrhosis are associated with higher risk of infectious and malignant complications in liver transplant *** gene mutations may be involved in the pathogenesis of liver iron overload and influence the progression of chronic liver diseases of different *** study was designed to determine the prevalence of iron overload in relation to HFE gene mutations among Polish patients with liver ***:Sixty-one patients with liver cirrhosis included in the study were compared with a control group of 42 consecutive patients subjected to liver biopsy because of chronic liver *** function tests and serum iron markers were assessed in both *** patients were screened for HFE mutations (C282Y,H63D,S65C).Thirty-six of 61 patients from the study group and all controls had liver biopsy performed with semiquantitative assessment of iron deposits in ***:The biochemical markers of iron overload and iron deposits in the liver were detected with a higher frequency (70% and 47% respectively) in patients with liver *** were no differences in the prevalence of all HFE mutations in both *** patients with a diagnosis of hepatocellular carcinoma,no significant associations with iron disorders and HFE gene mutations were ***:Iron disorders were detected in patients with liver cirrhosis frequently but without significant association with HFE gene *** the homozygous C282Y mutation seems to occur more frequently in the selected population of patients with liver *** elevated biochemical iron indices accompanied liver iron deposits more frequently in liver cirrhosis compared to controls with chronic liver disease,there is a need for more extensive s

关键词： liver cirrhosis iron overload gene mutations iron deposits hepatocytes