نتایج جستجو برای: nino1 2 nino3 nino4nino3 4 noi
تعداد نتایج: 3116992 فیلتر نتایج به سال:
در این مقاله به بررسی تأثیر شاخصهای اقلیمی بر میزان بارش دو دوره خشک و تر در حوزه آبخیز خلیج‌فارس و دریای عمان با استفاده از تجزیه‌وتحلیل عاملی پرداخته شده است. لذا دادههای دو دوره یادشده در 22 ایستگاه باران‌سنجی در حوزه آبخیز خلیج‌فارس و دریای عمان و 13 سیگنال اقلیمی در طی دوره آماری 2014-1970 مورد بررسی قرار گرفت. با توجه به نتایج تحلیل عاملی دادهها با استفاده از نرم‌افزار PAST از بین 40 س...
The conductor of n positive integer numbers a l,a2, ... ,an' whose greatest coII1mon divisor is equal'to I, is'defmed as the th.e minimal K, such that for every m ~K , the equation a1x 1+a2X 2+ ... +an Xn=m, h!ls a solution over the nOI}negative integers. In this notewe give a polYIlomial aigorithm computing'a close bound ~ for the conductor K o( n given positive integers, when n is fixed. The ...
Changing patterns of correlations between the historical average June–November Southern Oscillation Index (SOI) and October–March precipitation totals for 84 climate divisions in the western US indicate a large amount of variability in SOI/precipitation relations on decadal time scales. Correlations of western US precipitation with SOI and other indices of tropical El Niño–Southern Oscillation ...
BACKGROUND Problems of discipline are common among parents. These may be the results of the parents' pitfalls in disciplining their children. OBJECTIVE To find out common pitfalls of parents in disciplining their children. MATERIAL AND METHOD Parents of students with ages ranged between 60-72 months old in Bangkok-Noi district, Bangkok, were selected by random sampling. Total number of 1947...
An exceptional articulated skeleton of a new basal neornithischian dinosaur, Minimocursor phunoiensis gen. et sp. nov., was discovered in the Late Jurassic Phu Kradung Formation at Noi locality, Kalasin Province, Thailand, highly productive non-marine fossil vertebrate locality Khorat Plateau. It is one best-preserved dinosaurs ever found Southeast Asia. nov. shows combination both plesiomorphi...
The steepest descent (SD) method is well-known as the simplest in optimization. In this paper, we propose a new SD search direction for solving system of linear equations Ax = b. We also prove that proposed with exact line satisfies condition and possesses global convergence properties. This motivated by previous work on Zubai’ah-Mustafa-Rivaie-Ismail (ZMRI)[2]. Numerical comparisons classical ...
BACKGROUND The relationships between the infecting dengue serotype, primary and secondary infection, viremia and dengue severity remain unclear. This cross-sectional study examined these interactions in adult patients hospitalized with dengue in Ha Noi. METHODS AND FINDINGS 158 patients were enrolled between September 16 and November 11, 2008. Quantitative RT-PCR, serology and NS1 detection w...
background: 2, 4-dichlorophenoxy acetic acid (2, 4-d) is well known as inexpensive herbicides but it can give rise to undesirable pollution. the objective of this investigation was to describe a photo-chemical system for degradation of 2, 4-d. methods: a designed photolytic cell system was used in this study with a 150w or 400w uv lamp. a set of experiments was carried out at ph 1.5, 2.5, 3.5 a...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید