نتایج جستجو برای: Interception

تعداد نتایج: 4496  

Ali Tavili, Ghassem Assadian Mohammad Jafari Mohsen Mohseni Saravi, Nasrin Kolahchi

Vegetation cover is the first barrier for the raindrops resulting to the interception and infiltration loss. Interception as one of the main components of ecohydrology equation plays a major role in the water balance of rangelands. However, few studies have been done on the interception of rangeland plants in Iran. This study was carried out to find the interception rate in Astragalus parrowian...

2003
P. Branch

When compared with access network interception, Lawful Interception of the Internet is both more difficult and much less mature. However, Internet interception is becoming increasingly more important as Law Enforcement Agencies find that access network interception is becoming less effective. Unfortunately, the most common approach to Internet interception has some fundamental weaknesses, which...

Journal: :پژوهش های علوم و فناوری چوب و جنگل 0

this research was carried out in a reforest at shirvanagriculturecollegein two years (2005-2007). the aim of this research was to determine of canopy interception loss, throughfall and stemflow. four trees species were used including pinus nigra, cupressus sempervirens, robinia pseudacacia and platanus orientalis with three replications. the results showed that the amount of canopy interception...

2007
Juan Camilo Villegas Conrado Tobón David D. Breshears

Precipitation is the most fundamental input of water for terrestrial ecosystems. Most precipitation inputs are vertical, via rain, but can be horizontal, via wind-driven rain and snow, or, in some ecosystems such as tropical montane cloud forests (TMCFs), via fog interception. Fog interception can be particularly important in ecosystems where fog is frequently present and there are seasonal per...

2016
Jian Jiao Derong Su Yadong Wang

Estimating canopy interception of water by plants during rainfall or sprinkler irrigation is a critical step for evaluating water-use efficiency. Most existing experimental studies and mathematic models of canopy interception have paid little attention to the interception losses of water by herbaceous plants. To better understand the canopy interception processes of herbaceous plants and to est...

2006
A. M. J. Gerrits H. H. G. Savenije L. Hoffmann

In hydrological models, evaporation from interception is often disregarded, combined with transpiration, or taken as a fixed percentage of rainfall. In general interception is not considered to be a significant process in rainfallrunoff modelling. However, it appears that on average interception can amount to 20–50% of the precipitation. Therefore, knowledge about the process of interception is...

2003
Philip A. Branch

This paper describes the state of Lawful Interception of the Internet and compares it with Lawful Interception of access networks. Lawful Interception is the process of secretly intercepting communications between parties of interest to Law Enforcement agencies. Internet interception is both more difficult and much more immature than access network interception. Refusal by the main standards bo...

Journal: :journal of rangeland science 2011
nasrin kolahchi mohsen mohseni saravi ali tavili mohammad jafari ghassem assadian

vegetation cover is the first barrier for the raindrops resulting to the interception and infiltration loss. interception as one of the main components of ecohydrology equation plays a major role in the water balance of rangelands. however, few studies have been done on the interception of rangeland plants in iran. this study was carried out to find the interception rate in astragalus parrowian...

2011
Irfan Younas Atif Aqeel

This paper presents a computational model that uses a modified Genetic Algorithm (GA) approach, to provide more accurate results for mid-air targets interception. The proportional navigation laws that have been practiced for many years for target interception have been deployed in this research. A revised GA is formulated to determine the optimal interception point by modifying the heuristic cr...

Journal: :پژوهش های زراعی ایران 0
علیرضا کوچکی مهدی نصیری محلاتی سارا سنجانی

in order to investigate the weed diversity and modeling light interception in sole and intercropping millet and bean an experiment was conducted as complete randomized block design with 4 treatments and 4 replications at the agricultural research station, ferdowsi university of mashhad, iran, during 2008. treatments included monocultures, intercropping of millet and bean and a control treatment...

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