نتایج جستجو برای: interception

تعداد نتایج: 4496  

2010
Jinwhan Kim P. K. Menon

Ballistic target interception requires high accuracy in order to achieve kinetic hit-to-kill performance. Since the task becomes more challenging when the target performs complex maneuvers, highly accurate state estimators are indispensable for successful ballistic target interception. This research focuses on developing filter motion models which can reproduce a wide variety of target motions ...

Journal: :Journal of neurophysiology 2006
Hugo Merchant Apostolos P Georgopoulos

The interception of moving targets is a complex activity that involves a dynamic interplay of several perceptual and motor processes and therefore involves a rich interaction among several brain areas. Although the behavioral aspects of interception have been studied for the past three decades, it is only during the past decade that neural studies have been focused on this problem. In addition ...

Journal: :Electronics 2023

Aiming at the air defense task requirements for an enemy’s large-scale aircraft attack, this paper presents a plan generation algorithm which can quickly give interception scheme. The main contribution of is modification standard A* and its combination optimization air-defence mission. Firstly, attack weapon our platform are modeled, kinetic equations efficiency functions constructed, intercept...

2017
Tim van Emmerik Susan C. Steele-Dunne Rolf Hut Pierre Gentine Marceau Guerin Rafael S. Oliveira Jim Wagner John S. Selker Nick van de Giesen

Trees play a crucial role in the water, carbon and nitrogen cycle on local, regional and global scales. Understanding the exchange of momentum, heat, water, and CO 2 between trees and the atmosphere is important to assess the impact of drought, deforestation and climate change. Unfortunately, ground measurements of tree properties such as mass and canopy interception of precipitation are often ...

2016
Zhigang Bai Shuchun Mao Yingchun Han Lu Feng Guoping Wang Beifang Yang Xiaoyu Zhi Zhengyi Fan Yaping Lei Wenli Du Yabing Li

Identifying the characteristics of light interception and utilization is of great significance for improving the potential photosynthetic activity of plants. The present research investigates the differences in absorbing and converting photosynthetically active radiation (PAR) among various cotton cultivars. Field experiments were conducted in 2012, 2013 and 2014 in Anyang, Henan, China. Ten cu...

Journal: :پژوهش های تولید گیاهی 0
جهانفر دانشیان دانشیار موسسه تحقیقات کرج حمید جباری دانشگاه داوران

in order to study of some effective phenologic and physiologic characteristics on 18 sunflower hybrids yield under optimum conditions, an experiment was conducted as randomized complete block design with three replications at the research field of seed and plant improvement institute-karaj in 2006-2007. the result indicated that the hybrids showed significant difference in phonologic characteri...

Journal: :جنگل و فرآورده های چوب 0
سید محمد معین صادقی دانشجوی کارشناسی ارشد، گروه جنگل‏داری و اقتصاد جنگل، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران پدرام عطارد دانشیار گروه جنگل‏داری و اقتصاد جنگل، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران

the main goal of this study was to compare of rainfall interception (i) by pinus eldarica and cupressus arizonica plantations afforested in the chitgar forest park in a semiarid climate zone of iran. from the september 2012 to september 2013, gross rainfall (gr) and throughfall (tf) were collected through 10 and 50 rain-gauges, respectively. i was calculated as the difference between gr and tf....

2014
Tsu-Wei Chen Thi My Nguyet Nguyen Katrin Kahlen Hartmut Stützel

There is increasing interest in evaluating the environmental effects on crop architectural traits and yield improvement. However, crop models describing the dynamic changes in canopy structure with environmental conditions and the complex interactions between canopy structure, light interception, and dry mass production are only gradually emerging. Using tomato (Solanum lycopersicum L.) as a mo...

Journal: :Journal of experimental psychology. Human perception and performance 2018
Sinéad A Reid Joost C Dessing

The exact mechanisms by which humans control the manual interception of moving targets are currently unknown. Here, the authors explored the behaviors associated with the spatial control for manual interception. The examined task required controlling a cursor to intercept moving targets on a touch screen. They explored the effects of target motion direction, curvature and occlusion on manual in...

2006
Bruce N. Wilson Dwayne Stenlund

ion is the removal of rain from surface runoff processes. In addition to infiltration, it includes surface depressional storage and vegetative interception, of which surface depressional storage is of greater importance. Initial abstraction is the surface depressional storage, vegetative interception and infiltration (Fs for the GAML model) prior to the start of runoff. Most of the total surfac...

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