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当前匈牙利白肩雕(Aquila heliaca)的监测与保护工作

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AMBIO－人类环境杂志 2008年第6期37卷 439-441页

作者： András kovács Iván Demeter Imre Fatér János Bagyura károly nagy Tamás Szitta Gábor Firmánszky Márton Horváth 孙昭宁匈牙利鸟类与自然保护协会 MME猛禽保护组匈牙利东北部的Bükk国家公园董事会 Bukk & Aggtelek国家公园董事会

自20世纪80年代以来,全球濒危物种白肩雕就一直作为最主要的保护鸟类被匈牙利列入保护计划。近20年来,由于保护措施的实施,积极地改变土地用途,匈牙利的白肩雕种群数量大幅增加,从上世纪80年代初期的仅约20对,增加到2006年的约81对。200... 详细信息

自20世纪80年代以来,全球濒危物种白肩雕就一直作为最主要的保护鸟类被匈牙利列入保护计划。近20年来,由于保护措施的实施,积极地改变土地用途,匈牙利的白肩雕种群数量大幅增加,从上世纪80年代初期的仅约20对,增加到2006年的约81对。2002～2005年间,作为生命-自然(LIFE-Nature)计划的一部分,MME/匈牙利鸟盟实施了有针对性的、全面的监测、保护、研究活动,并开展活动提高公众意识。这一计划的主要目标是:确保在2004年匈牙利加入欧盟后,白肩雕种群可以长期的、可持续地增加。为了更好地了解和观察繁育和越冬种群的规模,该项目还设计并应用了新的调查和监测方法。引入标准的土地利用基线绘制和调查,对白肩雕主要生活区域中土地的长期使用情况进行探测,对白肩雕捕食对象密度的变化情况进行观察,并调查如触电等主要致死因素对其的影响。应用地理信息系统,该项目对项目前和项目期间历史相关信息和数据进行了整合,并融汇形成了系列白肩雕保护综合管理指南。

关键词：保护措施监测方法白肩雕匈牙利地理信息系统土地用途种群数量濒危物种

Direct and Simultaneous Determination of Several Impurity Elements in Manganese Tetroxide using ICP-AES

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Journal of Wuhan University of Technology(Materials Science) 2006年第1期21卷 4-8页

作者：姚俊 Atakora Djak Ladislau kékedy-nagy School of Environmental Studies China University of GeosciencesWuhan 430074China Department of AnalyticalChemistry Faculty of Chemistry and Chemical Engineering Babes-Bolyai University 400028 Cluj-Napoca Romania

A rapid method for the determination of impurity elements, such as Zn, Ni, Co, Cr, Cu, Cd and Pb in manganese tetroxide was developed, using inductively coupled plasma atomic emission spectrometry （ICP-AES）. The critical instrumental parameters such as sample flow rate and radio frequency incident were thoroughly optimized. The effect of matrix was also examined. The sensitivity was investigated using calibration curves obtained in presence of the matrix. The obtained recoveries for Ni, Co, Cr, Cu, and Cd at the μg· g^ -1 level were satisfactory and practically independent of the matrix used for the calibration standards. The recoveries of Pb and Zn were less suffwient. The method can be applied for routine analysis and quality control purposes at μg· g^-1 level of concentration.

关键词： manganese tetroxide impurity elements inductively coupled plasma-atomic emission spectrometry

Ranking parameters in urban energy models for various building forms and climates using sensitivity analysis

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Building Simulation 2023年第9期16卷 1587-1600页

作者： Aysegul Demir Dilsiz kaitlynn Ng Jérôme kämpf Zoltan nagy Department of Civil and Architectural Engineering and Construction Management University of WyomingLaramie WYUSA Intelligent Environments Lab Department of CivilArchitectural and Environmental EngineeringThe University of Texas at AustinAustin TXUSA Energy Informatics Group Idiap Research Institute1920 MartignySwitzerland

Urban Building Energy Modelling(UBEM)allows us to simulate buildings’energy performances at a larger ***,creating a reliable urban-scale energy model of new or existing urban areas can be difficult since the model requires overly detailed input data,which is not necessarily publicly *** calibration is a necessary step to reduce the uncertainties and simulation results in order to develop a reliable and accurate *** to the concerns over computational resources and the time needed for calibration,a sensitivity analysis is often required to identify the key parameters with the most substantial impact before the calibration is deployed in ***,we study the sensitivity of uncertain input parameters that affect the annual heating and cooling energy demand by employing an urban-scale energy model,*** goal is to determine the relative influence of each set of input parameters and their interactions on heating and cooling loads for various building forms under different ***,we conduct a global sensitivity analysis for annual cooling and heating consumption under different climate *** upon this,we investigate the changes in input sensitivity to different building forms,focusing on the indices with the largest Total-order ***,we determine First-order indices and Total-order effects of each input parameter included in the urban building energy *** also provide tables,showing the important parameters on the annual cooling and heating demand for each climate and each building *** find that if the desired calibration process require to decrease the number of the inputs to save the computational time and cost,calibrating 5 parameters;temperature set-point,infiltration rate,floor U-value,*** U-value and roof U-value would impact the results over 55%for any climate and any building form.

关键词： global sensitivity analysis Sobol’method urban energy modeling building stocks energy modelling parameter screening Sobol’indices sustainable urban planning

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Acta Geologica Sinica(English Edition) 2021年第3期95卷 1033-1055页

作者： nagy Shawky BOTROS Egyptian Mineral Resources Authority AbbassiaCairoEgypt

Intrusion-related gold deposits(IRGDs)occur in the Eastern Desert(ED)of Egypt within magmatic districts that are exploited for tungsten and tin *** and intrusion-related rare metal deposits(IRRMDs)are almost invariably linked with the late to post collisional Younger Granites(YGs)that have three successive phases(Ⅰ,ⅡandⅢ).At~635–630 Ma,the ED underwent a transition in deformation style from compressional to extensional and a switch from subduction with crustal thickening to delamination with crustal *** transition was concurrent with the emplacement of a short magmatic pulse(~635–630 Ma)that represents a transition between orogenic gold deposits and IRGDs.k-rich calc alkaline granites(phaseⅠandⅡof the YGs)hosting IRGDs like the Hangalia deposit were emplaced during the time span 630–610 *** magmatism began at 610 Ma,coexisting with the k-rich calc-alkaline magmatism over the 610–590 Ma time span,where the Fawakhir(598±3 Ma)and Um Had(596±2 Ma)granites that host the IRGDs were *** time,the alkaline magmatism became more alkaline giving rise to phaseⅢof the YGs that hosts IRRMDs.A distinct metallogenic epoch comprising both IRGDs and IRRMDs,was undergoing extreme growth at~600 Ma.

关键词： intrusion-related gold deposits intrusion-related rare metal deposits delamination crustal melting metallogenic epoch ~600 Ma Younger Granites

Lab experiments on the innovative rapid thick strip casting process

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International Journal of Minerals,Metallurgy and Materials 2012年第5期19卷 391-398页

作者： Richard nagy Dieter Senk Department of Ferrous Metallurgy IEHk RWTH Aachen UniversityAachen 52056Germany

Rapid thick strip casting （RTSC） by Anton Hulek, Inventmetall, is an innovative concept for the production of hot strips with a final as-cast thickness of about 25 mm before rolling. The innovation of the mechanism consists in a vertical mould performing a caterpillar motion. This moving mould has an unconventional parallelogram-shaped cross-section. The conventional rectangular shape is formed in the shaping machine, which is placed straight below the mould. Further elements of the technology are state-of-the-art. For the investigation of this new casting system theoretical calculations were complemented with practical experiments. The investigation focused mainly on two key aspects： the characteristics of the mould and the shaping process. For the practical analysis a static mould with three pairs of elements in laboratory scale was developed and commissioned by the Dept. of Ferrous Metallurgy @ RWTH Aachen University. The shaping experiments were carried out in model scale with two different materials and in variable boundary conditions. The results of these experiments delivered important mechanical as well as thermal informations about the casting system.

关键词： continuous casting rapid solidification strip metal moulds near-net-shape casting

WEAk TYPE INEQUALITY FOR THE MAXIMAL OPERATOR OF WALSH-kACZMARZ-MARCINkIEWICZ MEANS

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Acta Mathematica Scientia 2016年第2期36卷 359-370页

作者： Ushangi GOGINAVA karoly nagy Department of Mechanics and Mathematics Tbilisi State University Chavchavadze str. 1 Tbilisi 0128 Georgia Institute of Mathematics and Computer Sciences College of Nyiregyhdza SSstSi str. 31/B 4400 Nyiregyhdza Hungary

The main aim of this article is to prove that the maximal operator σ^k＊ of the Marcinkiewicz-Fejer means of the two-dimensional Fourier series with respect to Walsh- kaczmarz system is bounded from the Hardy space H... 详细信息

关键词： Walsh-kaczmarz system Marcinkiewicz-Fej^r means Maximal operator a.e.convergence weak type inequality

Flood risk on arid alluvial fans:a case study in the Joghatay Mountains,Northeast Iran

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Journal of Mountain Science 2023年第5期20卷 1183-1200页

作者： kaveh GHAHRAMAN Balázs nagy Department of Physical Geography Eotvos Loránd UniversityPázmány Péter stny.1/CH-1117 BudapestHungary

Among the common hazards related to alluvial fans,flooding is one of the most ***,in populated alluvial fans,not only the natural processes are effective in floods,but the artificial structures and modifications can change the behavior of flooding and its potential *** study aims to indicate the flood-prone landforms in a set of populated alluvial fans in an arid region and investigate the role of anthropogenic activities in controlling/exacerbating flooding in alluvial *** achieve this goal,15 Ground Range Detected in High resolution(GRDH)SAR Sentinel-1 images,covering a total of 24 alluvial fans,were ***-processing and post-processing steps were applied to all images to identify flood-prone sections of the studied alluvial *** results showed that feeder channels,spreading sites,and wide interfluves are the most flood-prone landforms of alluvial *** terms of anthropogenic modifications to mitigate flooding,a rampart system is distributed in the study *** are levee like structures formed from the fan *** aim to mitigate flood hazard on residential areas,infrastructures,and agricultural lands of the study *** show that the rampart system can reduce the danger of floods,but it cannot be considered a long-term ***,a comprehensive flood protection system distributed throughout the whole alluvial fan system is *** also reveal that in regions where flood monitoring is challenging,SAR images can be used as a freely available data set to monitor and identify flooding hotspots.

关键词： Alluvial fan Flood Anthropogenic activities Rampart Sentineli SAR

Discrepancies between clinical and autopsy findings in patients who had an acute stroke

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Stroke & Vascular Neurology 2022年第3期7卷 215-221页

作者： Lilla Hudák Attila Csaba nagy Sarolta Molnár Gábor Méhes katalin Erzsébet nagy LászlóOláh LászlóCsiba Department of Neurology University of Debrecen Faculty of MedicineDebrecenHungary Department of Preventive Medicine University of Debrecen Faculty of Public HealthDebrecenHungary Department of Pathology University of Debrecen Clinical CenterDebrecenHungary Doctoral School of Neuroscience University of Debrecen Faculty of MedicineDebrecenHungary

Objectives According to international observations,the incidence of clinical autopsies is declining worldwide,plummeting below 5%in the USA and many European *** is an unfavourable trend as,in 7%-12%of cases,recent clinicopathological studies found discrepancies that might have changed the therapy or the outcome if known *** previous large-scale observations have examined varied patient populations,we aimed to focus on the differences between the clinical and pathological diagnostic findings in only patients who had a *** and methods We assessed the postmortem non-neuropathological and neuropathological findings of 534 consecutive patients who had a stroke who passed *** neoplasms,pneumonias,thromboembolisms and haemorrhagic transformations revealed only by autopsy were considered severe abnormalities;in addition,benign abnormalities important from an educational or scientific point of view were also *** In 26 of the 534 cases(4.9%),the presence of systemic neoplasms had already been confirmed in the clinical stage;however,8(1.5%)malignant tumours were only detected during ***,80(15%)thromboembolic events,73(13.6%)pneumonias and 66(18%)haemorrhagic transformations were only diagnosed at *** hospital stay(from admission to death)resulted in fewer discrepancies between clinical and autopsy diagnosis of thromboembolic events and pneumonias(pke is reliably diagnosed with imaging techniques,postmortem autopsies are also important in patients who had a stroke as autopsies may reveal clinically silent diseases(eg,tumour),and contribute to knowing the actual incidence of stroke-related thromboembolic and pneumonia complications.

关键词： neoplasms clinical finding

On a new fractional-order Logistic model with feedback control

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Applied Mathematics(A Journal of Chinese Universities) 2021年第3期36卷 390-402页

作者： Manh Tuan Hoang A.M.nagy Department of Mathematics FPT UniversityHoa Lac Hi-Tech ParkKm29 Thang Long BlvdHanoiViet Nam kuwait University Faculty of ScienceDepartment of MathematicsSafat 13060Kuwait Department of Mathematics Faculty of ScienceBenha UniversityBenha 13518Egypt

In this paper,we formulate and analyze a new fractional-order Logistic model with feedback control,which is different from a recognized mathematical model proposed in our very recent *** stability of the proposed model and its numerical solutions are studied *** using the Lyapunov direct method for fractional dynamical systems and a suitable Lyapunov function,we show that a unique positive equilibrium point of the new model is asymptotically *** an important consequence of this,we obtain a new mathematical model in which the feedback control variables only change the position of the unique positive equilibrium point of the original model but retain its asymptotic ***,we construct unconditionally positive nonstandard finite difference(NSFD)schemes for the proposed model using the Mickens’*** is worth noting that the constructed NSFD schemes not only preserve the positivity but also provide reliable numerical solutions that correctly reflect the dynamics of the new fractional-order ***,we report some numerical examples to support and illustrate the theoretical *** results indicate that there is a good agreement between the theoretical results and numerical ones.

关键词： fractional-order Logistic model feedback control Lyapunov functions uniform asymptotic stability nonstandard finite difference schemes