نتایج جستجو برای: modflow 2000

تعداد نتایج: 172518  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم پایه 1391

امروزه به منظور بررسی های هیدروژئولوژیکی در دشت ها از پیزومتر ها، بخصوص پیزومتر های خطی استفاده می شود. بار آبی مشاهده ای در پیزومتر های خطی در پاره ای از مواقع با بار آبی مشاهده ای در پیزومتر های نقطه ای که در اعماق مختلف آبخوان نفوذ کرده اند متفاوت می باشد که این تفاوت می تواند سبب خطا در بررسی ها و آزمون ها شود. در این مطالعه در درجه اول سعی شد که با شبیه سازی عددی آبخوان های فرضی تحت شرایط ...

2005
Glenn Pearson

The specifications of Motion JPEG 2000 (MJ2) and related documents in the JPEG 2000 family are analyzed, to identify and assess the multiple mechanisms available for storing metadata within a MJ2 file and the types of metadata that can be so accommodated. Adequate mechanisms seem to exist for associating metadata with the production as a whole, individual tracks, and individual frames. In those...

Journal: :Ground water 2004
Xunhong Chen Yanfeng Yin

In the analysis of streamflow depletion, the Hunt (1999) solution has an important advantage because it considers a partially penetrating stream. By extending the Hunt drawdown solution, this paper presents semianalytical solutions for gaining streams that evaluate the induced stream infiltration and base flow reduction separately. Simulation results show that for a given deltah (the initial hy...

2002
P. K. MAJUMDAR N. C. GHOSH B. CHAKRAVORTY P. K. Majumdar

An analysis of groundwater flow and transport processes of arsenic in the flow domain of the Yamuna sub-basin located in West Bengal (India) is presented. The objectives of the analysis are: to conceptualize the groundwater flow domain, to determine groundwater flow paths and groundwater velocities, to study arsenic transport in the flow domain, and to study the well captures zones. The first t...

2010
Kaili Wang Guanhua Huang

The impact of permeability on solute transport process in a highly heterogeneous aquifer was analyzed using the Monte-Carlo method. The logarithm of the permeability (lnK) of aquifer was considered as a non-stationary field with increments being a truncated fractional Lévy motion (fLm) generated using the SRA3DC code. MODFLOW and MT3DMS code were used to solve the flow and solute equations, res...

1995
Daniel M. Kaplan

I discuss the physics reach of a fixed-target charm experiment which can reconstruct >10 charm decays, three orders of magnitude beyond the largest extant sample. Such an experiment may run at Fermilab shortly after the Year 2000. In addition to “programmatic” charm physics such as spectroscopy, lifetimes, and tests of QCD, this “Charm2000” experiment will have significant sensitivity to new ph...

Journal: :CoRR 2011
Rob Seaman

The Image Reduction and Analysis Facility is a scientific image processing package widely used throughout the astronomical community. IRAF has been developed and distributed by the National Optical Astronomy Observatory in Tucson, Arizona since the early 1980’s. Other observatories and projects have written many dozens of layered external application packages. More than ten thousand journal art...

2000
E. B. Christopoulou A. N. Skodras T. R. Reed C. A. Christopoulos

JPEG2000 is the new standard for the compression of still images. Its objective and subjective image quality performance is superior to existing standards. In this paper the Part I of the JPEG2000 standard is presented in brief, and its implementation complexity on different computer platforms is reported.

2008
Revaz Kakubava

In the terms of operational calculus the probability characteristics of direct and reverse residual renewal time of alternating renewal process, where renewal time depends on life-time, are found. 1. Definitions, Motivations and Formulation of the Problem 1.1 According to [1] let’s consider a system which fails after random life-time X1 and is fully renewed after the lapse of random time Y1. Th...

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