نتایج جستجو برای: gdd
تعداد نتایج: 581 فیلتر نتایج به سال:
This study was carried out under field conditions in Adana, Turkey 2018 and 2019 to determine the critical period for weed control sunflower depending on daily growth temperature (GDD) species. A log-logistic model with four parameters used relationship between relative crop yield both increased intervention time length of weed-free periods. In addition, dominant weeds densities were determined...
ارزیابی اثرات دگرآسیبی برخی گونه های علف های هرز باریک برگ بر گونه های مختلف گیاهی (زراعی و علف هرز)
چکیده فارسی استفاده از ویژگی دگرآسیبی علف های هرز می تواند نقش مهمی در مدیریت وکنترل آن ها ایفا کند. به منظور ارزیابی اثرات دگرآسیبی برخی گونه های علف های هرز باریک برگ بر گونه های مختلف گیاهی (زراعی و علف هرز) و همچنین به منظور بررسی فنولوژیکی برخی گونه های علف هرز باریک برگ در اهواز دو آزمایش به صورت مستقل انجام گرفت. آزمایش اول در سال 1391، در ژرمیناتور دانشکده کشاورزی دانشگاه شهید چمران اه...
Purpose. Tube-related exposure is a known complication of glaucoma drainage device (GDD) surgery. Our objective is to report the early (approximately 1 year) tube exposure rate of implants covered with a keraSys (IOP Inc., Costa Mesa, CA, USA) tissue reinforcement graft. Patients and Methods. A retrospective, noncomparative, consecutive case series of 42 eyes with GDD implantation with keraSys ...
Space-time coding for the flat fading, quasistatic MIMO wireless channel has received wide spread attention. This paper treats space-time code design for frequency selective channels from a single carrier modulation perspective. We present a general framework for analyzing space-time codes for delay spread channels based on PEP analysis. It is shown that as in the flat fading case, diversity ga...
In this note we use matrices to construct group divisible designs (GDDs). The constructions of GDDs of the form A 0 D + A ® D will be carried out in two cases. The first case uses the incidence matrix D of a GDD with a certain (0,1) matrix A. The second case uses the incidence matrix D of a BIBD with A as in the first case. In both cases necessary and sufficient conditions in terms of parameter...
In many diagnosis-and-repair domains, diagnostic reasoning cannot be abstracted from repair actions, nor from actions necessary to obtain diagnostic information. We call these exploratory-corrective domains. In TraumAID 2.0, a consultation system for multiple trauma management, we have developed and implemented a framework for reasoning in such domains which integrates diagnostic reasoning with...
Root parasitic weeds are a major limiting production factor in a number of crops, and control is difficult. Genetic resistance and chemical control lead the fight, but without unequivocal success. Models that help to describe and even predict the evolution of parasitism underground are a valuable tool for herbicide applications, and even could help in breeding programs. Legumes are heavily affe...
A new satellite-enabled interoperable service has been developed to provide high spatiotemporal and continuous time series of Growing Degree Days (GDDs) at the field. The GDDs are calculated from MSG-SEVIRI data acquired by EUMETCast station operated IAASARS/NOA downscaled on-the-fly increase initial coarse spatial resolution original 4–5 km 1 km. performance SENSE-GDD, in deriving reliable GDD...
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