检索结果-南通市图书馆

包装尺寸和槽型瓦楞纸箱对荷载作用下桥梁荷载的影响

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

绿色包装 2017年第1期 54-54页

作者： Jonghun Park laszlo horvath Marshall S.White Samantha Phanthanousy Philip Araman Robert J.Bush

实验结果表明,增加包装尺寸,最大可造成76%的几率改变机组负荷偏转,而瓦楞纸板箱槽型从B楞或BC楞的改变,对降低机组负荷偏差的效果可达23%。研究还表明,低刚度托盘的包装尺寸和瓦楞纸板长笛类型的单位负荷挠度的效果变化最大。

关键词：包装尺寸机组负荷槽型

Influence of entrainer recycle for batch heteroazeotropic distillation

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2018年第4期12卷 643-659页

作者： laszlo Hegely Peter Lang Department of Building Service and Process Engineering Faculty of Mechanical Engineering Budapest University of Technology and EconomicsMuegyetem rkp.3-9Hungary

Dehydration of isopropanol applying batch heteroazeotropic distillation with toluene as entrainer (E) is investigated. The composition of the feed is near to that of the isopropanol (A)-water (B) azeotrope. The effects of recycling the entrainer and the off-cut are studied by dynamic simulation with a professional flow-sheet simulator. Three consecutive batches (one production cycle) is studied. Both operational modes (Mode I: decantation after distillation and Mode II: decantation during distillation) are simulated. For Mode II, calculations are performed both for Strategy A (distillate from the aqueous (E-lean) phase only) and Strategy B (partial withdrawal of the organic (Erich phase), as well). The E-rich phase, the final column hold-up and the off-cut (Mode II only) are recycled to the next batch. The influence of the following parameters are determined: quantity of entrainer, reflux ratios of the steps. The variations caused by the recycling in the 2(nd) and 3(rd) batches are also shown. The best results (lowest specific energy demand and highest recovery of A) are obtained by Mode II, Strategy A. Recycling increases the recovery, and drastically diminishes the entrainer consumption. However, it makes the production slower and decreases the quantity of fresh feed that can be processed.

关键词： batch distillation heteroazeotropic distillation operational policies off-cut recycle entrainer

Evolution of disease phenotype in adult and pediatric onset Crohn's disease in a population-based cohort

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2013年第14期19卷 2217-2226页

作者： Barbara Dorottya Lovasz laszlo Lakatos Agnes horvath Istvan Szita Tunde Pandur Michael Mandel Zsuzsanna Vegh Petra Anna Golovics Gabor Mester Mihaly Balogh Csaba Molnar Erzsebet Komaromi Lajos Sandor Kiss Peter laszlo Lakatos First Department of Medicine Semmelweis University Department of Medicine Csolnoky F Province Hospital Department of Pediatrics Csolnoky F Province Hospital Department of Medicine Grof Eszterhazy Hospital Department of Infectious Diseases Magyar Imre Hospital Department of Gastroenterology Municipal Hospital

AIM:To investigate the evolution of disease phenotypein adult and pediatric onset Crohn's disease(CD) populations,diagnosed between 1977 and ***:Data of 506 incident CD patients were analyzed(age at diagnosis:28.5 years,interquartile range:22-38 years).Both in-and outpatient records were collected prospectively with a complete clinical follow-up and comprehensively reviewed in the population-based Veszprem province database,which included incident patients diagnosed between January 1,1977 and December 31,2008 in adult and pediatric onset CD *** phenotype according to the Montreal classification and long-term disease course was analysed according to the age at onset in time-dependent univariate and multivariate ***:Among this population-based cohort,seventy-four(12.8%) pediatric-onset CD patients were identified(diagnosed ≤ 17 years of age).There was no significant difference in the distribution of disease behavior between pediatric(B1:62%,B2:15%,B3:23%) and adult-onset CD patients(B1:56%,B2:21%,B3:23%) at diagnosis,or during ***,the probability of developing complicated disease behaviour was 49.7% and 61.3% in the pediatric and 55.1% and 62.4% in the adult onset patients after 5-and 10-years of ***,time to change in disease behaviour from non stricturing,non penetrating(B1) to complicated,stricturing or penetrating(B2/B3) disease was not significantly different between pediatric and adult onset CD in a Kaplan-Meier *** year of diagnosis(P = 0.04),ileal location(P < 0.001),perianal disease(P < 0.001),smoking(P = 0.038) and need for steroids(P < 0.001) were associated with presence of,or progression to,complicated disease behavior at diagnosis and during follow-up.A change in disease location was observed in 8.9% of patients and it was associated with smoking status(P = 0.01),but not with age at ***:Long-term evolution of disease behavior was not different in pediatric-a

关键词： Crohn’s disease Age at diagnosis Disease behavior Disease course

Repetitive narrow QRS tachycardia in a 61-year-old female patient with recent palpitations

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Geriatric Cardiology 2018年第2期15卷 193-198页

作者： Andras Vereckei laszlo Geller 3^rd Department of Medicine Semmelwels University Budapest Hungary Heart and Vascular Center Semmelweis University Budapest Hungary

A 61-year-old female patient suffering from recent onset palpitations and dyspnea on exertion with hypertension and mitral valve prolapse in her past history came to our outpatient department. Echocardiography revealed a mild mitral valve prolapse, slightly decreased left ventricular （LV） function （LV ejection fraction： 51%） and a mild mitral regurgitation.

关键词： Dual AV nodal nonreentrant tachycardia Electrocardiography Supraventricular tachycardia

Mesoporous activated carbon-zeolite composite prepared from waste macadamia nut shell and synthetic faujasite

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2019年第1期27卷 226-236页

作者： Surachai Wongcharee Vasantha Aravinthan laszlo Erdei School of Civil Engineering and Surveying University of Southern Queensland

Novel activated carbon-zeolite composite adsorbent was prepared from macadamia shell bio-waste and synthetic zeolite X using hydrothermal *** studies revealed mainly mesoporous structure with 418 m^2·g^(-1) BET surface area with faujasite clusters on the carbon *** capacity for methylene blue model pollutant increased from 85 to 97 mg·g^(-1) with the temperature increase from 25 to 45 ℃, and improved with increasing *** regression analyses found accurate fit to the pseudo-first-order kinetics model and intra-particle diffusion rate controlling *** fits to the Jovanovic isotherm model indicated monolayer coverage on chiefly homotattic surfaces with variable *** thermodynamic analysis confirmed spontaneous and endothermic physisorption *** spent adsorbent was regenerated with 20% capacity loss over five reuse *** the adsorbent was developed for ammonia, heavy metal and organic matter removal from water sources, the results also indicate good performance in cationic dye removal from wastewaters.

关键词： Activated carbon Adsorptio n Synthetic faujasite Functional composite Methylene blue

Multi-scale trajectory analysis: powerful conceptual tool for understanding ecological change

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Frontiers in Biology 2009年第2期4卷 158-179页

作者： laszlo ORLOCI Ecologia Quantitativa Universidade Federal do Rio Grande do SulPorto AlegreRS91540-000Brazil

The model at the basis of trajectory analysis is conceptually *** applied to time series vegetation data,the projectile becomes a surrogate for vegetation state,the trajectory for the evolving vegetation process,and the properties of the trajectory for the true process *** its simplicity,the model is well-defined under natural circumstances and easily adapted to serial vegetation data,irrespective of *** a major advantage,compared to other models that isolate the elementary processes and probe vegetation dynamics for informative regularities on the elementary level,the trajectory model allows us to probe for regularities on the level of the highest process *** and a data analytical methodology developed around the trajectory model are outlined,including many numerical examples.A rich list of key references and volumes of supplementary information supplied in the Web Only Appendices rounds out the presentation.

关键词： attractor migration determinism fractal dimension parallelism periodicity phase structure

A Unified Fractional-Step,Artificial Compressibility and Pressure-Projection Formulation for Solving the Incompressible Navier-Stokes Equations

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Communications in Computational Physics 2014年第10期16卷 1135-1180页

作者： laszlo Konozsy Dimitris Drikakis Fluid Mechanics and Computational Science Cranfield UniversityCranfieldBedfordshireMK430ALUnited Kingdom.

This paper introduces a unified concept and algorithm for the fractionalstep(FS),artificial compressibility(AC)and pressure-projection(PP)methods for solving the incompressible Navier-Stokes *** proposed FSAC-PP approach falls into the group of pseudo-time splitting high-resolution methods incorporating the characteristics-based(CB)Godunov-type treatment of convective terms with PP *** to the fact that the CB Godunov-type methods are applicable directly to the hyperbolic AC formulation and not to the elliptical FS-PP(split)methods,thus the straightforward coupling of CB Godunov-type schemes with PP methods is not ***,the proposed FSAC-PP approach unifies the fully-explicit AC and semi-implicit FS-PP methods of Chorin including a PP step in the dual-time stepping procedure to a)overcome the numerical stiffness of the classical AC approach at(very)low and moderate Reynolds numbers,b)incorporate the accuracy and convergence properties of CB Godunov-type schemes with PP methods,and c)further improve the stability and efficiency of the AC method for steady and unsteady flow *** FSAC-PP method has also been coupled with a non-linear,full-multigrid and fullapproximation storage(FMG-FAS)technique to further increase the efficiency of the *** validating the proposed FSAC-PP method,computational examples are presented for benchmark *** overall results show that the unified FSAC-PP approach is an efficient algorithm for solving incompressible flow problems.

关键词： Navier-Stokes equations characteristics-based Godunov-type scheme unified method.

Serological biomarkers for management of primary sclerosing cholangitis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2022年第21期28卷 2291-2301页

作者： David Tornai Peter laszlo Ven Peter laszlo Lakatos Maria Papp Division of Gastroenterology Department of Internal MedicineFaculty of MedicineUniversity of DebrecenDebrecen H-4032Hajdu-BiharHungary European Reference Network on Hepatological Diseases ERN RARE-LIVERDebrecen H-4032Hajdu-BiharHungary The First Department of Medicine Division of GastroenterologyUniversity of PécsPécs H-7624BaranyaHungary Kálmán Laki Doctoral School of Biomedical and Clinical Sciences Faculty of MedicineUniversity of DebrecenDebrecen H-4032Hajdu-BiharHungary Division of Gastroenterology McGill University Health CentreMontreal QC H4A 3J1QuebecCanada The First Department of Medicine Semmelweis UniversityBudapest H-1083PestHungary

Clinical manifestations and progression of primary sclerosing cholangitis(PSC)are heterogeneous,and its pathogenesis is poorly *** importance of gut-liver interactions in the pathogenesis has been clinically confirmed and highlighted in different *** advances regarding biomarkers of biliarygut crosstalk may help to identify clinically relevant PSC subgroups assisting everyday clinical work-up(e.g.,diagnosis,disease stratification,or surveillance)and the exploration of potential therapeutic *** phosphatase produced by the biliary epithelium is consistently associated with ***,its level shows natural fluctuation limiting its use in individual ***,cell activation,and tissue remodeling markers have been reported to predict clinical *** immunoglobulin(Ig)G4 level is associated with a shorter transplantation-free *** type atypical perinuclear anti-neutrophil cytoplasmic antibodies(P-ANCAs)are non-specific markers of various autoimmune liver diseases and may reflect an abnormal B-cell response to gut microbial *** type atypical P-ANCA identifies PSC patients with particular clinical and genetic(for human leukocyte antigens)*** presence of IgA type anti-F-actin antibody(AAA)may predict a progressive disease course,and it is associated with enhanced mucosal immune response to various microbial antigens and enterocyte *** type anti-glycoprotein 2(GP2)antibodies identify patients with a severe disease phenotype and poor survival due to enhanced fibrogenesis or development of *** soluble vascular adhesion protein-1(sVAP-1)level is associated with adverse disease outcomes in *** sVAP-1 levels correlate with mucosal addressin cell adhesion molecule-1(MAdCAM-1)expression in the liver that contributes to gut activated T-cell homing to the hepatobiliary *** the present paper,we review the evidence on these possible serological ma

关键词： Primary sclerosing cholangitis Hepatobiliary Serological biomarker Immunoglobulin Inflammatory Tissue remodeling

Coupling the 4M crop model with national geo-databases for assessing the effects of climate change on agro-ecological characteristics of Hungary

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Digital Earth 2014年第5期7卷 391-410页

作者： Nandor Fodor laszlo Pasztor Tamas Nemeth Institute for Soil Science and Agricultural Chemistry Centre for Agricultural ResearchHungarian Academy of SciencesBudapestHungary Hungarian Academy of Sciences BudapestHungary

The 4M crop model was used to investigate the prospective effects of climate change on the agro-ecological characteristics of *** model was coupled with a detailed meteorological database and spatial soil information systems covering the whole territory of ***-specific model parameters were determined by inverse *** meteorological data were produced from the present meteorological data by combining a climate change scenario and a stochastic weather *** the available and the generated data,the present and the prospective agro-ecological characteristics of Hungary were *** to the simulation results,average yields will decrease considerably(-30%)due to climate *** rate of nitrate leaching will prospectively decrease as *** fluctuations of both the yields and the annual nitrate leaching rates will most likely increase approaching the end of the twenty-first *** the basis of the simulation results,the role of autumn crops is likely to become more significant in *** achieved results can be generalized for more extended regions based on the concept of spatial(geographical)analogy.

关键词： agro-ecological features crop modeling climate change effects spatial soil information systems