نتایج جستجو برای: year experiment
تعداد نتایج: 1030445 فیلتر نتایج به سال:
Publicly owned companies, their officers and major investors are required to file regular disclosures with the Securities and Exchange Commission (SEC). To improve accessibility to these public documents, the SEC began developed the EDGAR (Electronic Data Gathering, Analysis and Retrieval) electronic disclosure system. This system provides ready, free access to all electronic filings made since...
چکیده به منظور بررسی اثر تنوع گیاهی و نوع منبع تغذیه ای بر تنوع و تراکم علفهای هرز و حشرات، کارایی مصرف نهاده ها ( نور، آب، عناصر غذایی) و عملکرد و خصوصیات کیفی چند گونه زراعی، آزمایشی به صورت کرتهای خردشده بر پایه طرح بلوکهای کامل تصادفی با سه تکرار در دو سال زراعی 1385-1384 و 1386-1385 در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه فردوسی مشهد به اجرا درآمد. تیمارهای مورد بررسی دو منبع کود دامی و...
A key pursuit in contemporary ecology is to differentiate regime shifts that are truly irreversible from those hysteretic. Many ecological have been labeled as without exploring the full range of variability stabilizing feedbacks potential drive an shift back towards a desirable regime. Removing fire grasslands can juniper woodlands cannot be reversed using typical frequency and intensity thres...
This manual is only partially complete and is a work in progress. A completed manual will be available by January 1,2000. Cluster and TreeView are Y2K Compliant because they are oblivious of date and time.
HENRY A. JOHNSON, 0000 MARK E. JOHNSON, 0000 DINCHEN A. KLEIN, 0000 LAURA A. KNABB, 0000 KIRK A. KREISEL, 0000 ARRON W. LAYTON, 0000 TIFFANY A. LEHANE, 0000 GREGORY D. LEWIS, 0000 JEFFREY M. LISAK, 0000 RONALD B. LOTT, JR., 0000 JAMES MATHES, 0000 TODD D. MOORE, 0000 JEFFREY A. NESHEIM, 0000 RICK L. NICKERSON, 0000 GREGORY J. OSTIDIEK, 0000 NANNETTE M. PACO, 0000 CHRISTOPHER F. POULIOT, 0000 JA...
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...
Despite the enormous media coverage that the issue of year 2000 (Y2K) readiness has received in recent months, the focus of that coverage has been restricted almost exclusively to technological aspects. Non-technical issues have tended to be either ignored completely or given very little attention. Most importantly, not much is known about the organisational processes of preparing to face this ...
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