نتایج جستجو برای: and 9 soil variables

تعداد نتایج: 16961228  

2000
Caroline Heycock Roberto Zamparelli

Recent work on the syntax and semantics of functional projections within the noun phrase has had as one goal an explanation for the crosslinguistic distribution of “bare” (determinerless) noun phrases. This article provides an account for an apparent anomaly: the relatively free occurrence of bare noun phrases under coordination. We argue that this construction involves coordination of projecti...

Journal: :Ann. Pure Appl. Logic 2000
Ian M. Hodkinson Frank Wolter Michael Zakharyaschev

In this paper, we introduce a new fragment of the first-order temporal language, called the monodic fragment, in which all formulas beginning with a temporal operator (Since or Until) have at most one free variable. We show that the satisfiability problem for monodic formulas in various linear time structures can be reduced to the satisfiability problem for a certain fragment of classical first...

1994
Michael R. Douglas Miao Li

We study the full set of planar Green's functions for a two-matrix model using the language of functions of non-commuting variables. Both the standard Schwinger-Dyson equations and equations determining connected Green's functions can be efficiently discussed and solved. This solution determines the master field for the model in the 'C-representation.

Journal: :ISPRS Int. J. Geo-Information 2017
Wei Liu Hai-Rong Zhang Dapeng Yan Sheng-Li Wang

Spatial discontinuity often causes poor accuracy when a single model is used for the surface modeling of soil properties in complex geomorphic areas. Here we present a method for adaptive surface modeling of combined secondary variables to improve prediction accuracy during the interpolation of soil properties (ASM-SP). Using various secondary variables and multiple base interpolation models, A...

The relationship between topography, land use, and topsoil moisture storage is investigated for a small catchment with undulating deep loess hilslopes in the south of the Netherlands. For a period of 10 months, soil moisture profiles have been measured weekly at 15 locations throughout the catchment. A Generalized Additive Model was employed to find relationships between the various factors inf...

Journal: :پژوهش آب در کشاورزی 0
مسعود شاکرمی دانشجوی دکتری مهندسی منابع آب دانشگاه بوعلی سینا همدان. صفر معروفی استاد گروه مهندسی آب دانشگاه بوعلی سینا همدان. قاسم رحیمی استادیار گروه مهندسی علوم خاک دانشگاه بوعلی سینا همدان. فرشاد دشتی دانشیار گروه علوم باغبانی دانشگاه بوعلی سینا همدان.

in order to investigate the effect of wastewater and compost on transport of heavy metals in a soil column, a factorial experiment based on completely randomized design with three replication was conducted. the variables included three types of water: fresh water (w1), treated wastewater (w2) and a composition of 50% raw wastewater and 50% fresh water (w3). besides, four levels of compost were ...

BACKGROUND AND OBJECTIVES: Very low grid power penetration in some urban areas has led to telecoms companies investing massively in the deployment of diesel generators (DGs). These deployments have led to diesel and waste oil spill at base transceiver station (BTS) sites during maintenance cycles, impacting the environment and human activities. The objective of this study is to...

ژورنال: علوم آب و خاک 2018

Factor analysis is one of the multivariate statistical techniques that considers the interrelationships between apparently irrelevant variables and helps researchers to find the hidden reasons for the occurrence of an event. In order to evaluate the effects of different irrigation levels and humic acid foliar application and identify the factors affecting water use efficiencies of sesame (Sesam...

Identifying environmental factors affecting the habitat preference of medicinal species is a fundamental and valuable action for cultivation and domestication and reducing the pressure on natural resources is a fundamental and valuable action. This study was performed with the purpose of investigate the most important ecological factors affecting the habitat of Stachys lavandulifolia Vahl in ea...

Abdolhossein Rezaipoorbaghedar Hamid Reza Azimzadeh Majid Sadeghinia Mohammad Hossein Hakimi

In order to sustainable use of rangelands, it is necessary to recognize water, soil, and vegetation cover and analyze their relationships. Physical and chemical properties of soil are effective in distribution of plant species in local area. To determine the effects of some soil properties on species distribution of Eurotia ceratoides and Stipa barbata in Baghedar summer region of Bafgh, three ...

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