نتایج جستجو برای: biological parameters

تعداد نتایج: 1015827  

Journal: :تحقیقات نظام سلامت 0
سعید راثی نظامی دانشجوی دکتری، گروه مهندسی عمران- محیط زیست، دانشکده محیط زیست، دانشگاه تهران، تهران، ایران مهرداد نظری ها استادیار، گروه مهندسی محیط زیست، دانشکده محیط زیست، دانشگاه تهران، تهران، ایران اکبر باغوند دانشیار، گروه مهندسی محیط زیست، دانشکده محیط زیست، دانشگاه تهران، تهران، ایران علی مریدی - استادیار، گروه مهندسی منابع آب، دانشکده مهندسی آب و محیط زیست، دانشگاه صنعت آب و برق شهید عباسپور، تهران، ایران

background: the spread of urbanization in floodplains as well as increase of industrial and agricultural activities in river discharges may lead to water pollution by physical, chemical and biological pollutants. one of the major concerns in monitoring the water resources system is indentifying major quality parameters and determining a relationship between physical and chemical parameters. thi...

ژورنال: علوم زراعی ایران 2020
Kalateh Arabi, Mahdi, Nehbandani, , Panahi, mohammad Hasan, Soltani, Afshin, Zeynali, Ebrahim,

To estimate required parameters of phenology sub-model in SSM-Wheat model (cardinal temperatures, critical photoperiods and photoperiod sensitivity coefficient) and to determine of the biological day for eight bread wheat genotypes (Morvarid, Tajan, Kohdasht, Darya, Gonbad, Arta, N-87-20 and N-87-19) in Golestan province of Iran in 12 sowing dates, an experiment was carried out using randomized...

2008
L. M. Sehgal

We study the evolution of a neutral K meson prepared as an incoherent equal mixture of K and K̄. Denoting the density matrix by ρ(t) = 1 2 N(t) [1+ ~ ζ(t) · ~σ], the norm of the state N(t) is found to decrease monotonically from one to zero, while the magnitude of the Stokes vector |~ ζ(t)| increases monotonically from zero to one. This property qualifies these observables as arrows of time. Req...

1997
Michael R. Meyer

We report mid–IR observations of two young stars found in the Taurus dark cloud spatially resolving for the first time their 10 μm emission. The weak–emission T Tauri star DI Tau, tentatively identified by Skrutskie et al. (1990) on the basis of 12 μm IRAS data as an object in the process of dissipating its circumstellar disk, is found to have no infrared excess at a wavelength of 10 μm. The ne...

2005
Alex Kovner

These lectures deal with the description of hadronic scattering at high energies, and more specifically with the evolution of the scattering matrix with energy[1],[2]. It has been a very lively and active field for the last 10 years[3],[4],[5],[6] and especially lately there has been a new burst of activity. The latest developments are related to what is sometimes called Pomeron loops[7], or Fl...

Journal: :Journal of animal science 2006
P J Ferre V Laroute J P Braun J Cazaux P L Toutain H P Lefebvre

Evaluation of skeletal muscle tolerance during development of new drug formulations for i.m. use is most often based on terminal methods performed in the target species after slaughtering. The objective of this study was to evaluate the effect of muscle damage on the pharmacokinetic parameters of the drug delivered into the muscle using an alternative, noninvasive method. Phenylbutazone (PBZ) w...

2006
L. Solymar

Magnetoinductive waves propagating along a set of resonant metamaterial elements are studied under the condition when the wave travels round a closed circular path and the total phase shift is an integral multiple of 2 . The resonant frequency of the circulating wave is shown to be related to the resonant frequency of the element via the known dispersion relationship. The currents in the elemen...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد 1376

in this thesis our aim is to construct vector field in r3 for which the corresponding one-dimensional maps have certain discontinuities. two kinds of vector fields are considered, the first the lorenz vector field, and the second originally introced here. the latter have chaotic behavior and motivate a class of one-parameter families of maps which have positive lyapunov exponents for an open in...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی و مهندسی 1390

sange siyah dam is located two kilometers down the kabod khani village. the environ of ghorrve city in kurdestan province. this is an clay core dam. in this dam instrumentation is performed in three section and consist of electrical piezometers, total pressure cells, settlement cells and so on. the main objective of instrumentation is to control the behavior of dam body and foundation, end else...

2004
Atsuhiro NISHIKATA Ryusuke SAITO Yukio YAMANAKA

To clarify the correspondence between Shielding Effectiveness (SE) of shielding materials and their physical property, we propose an equivalent circuit for a shielding effectiveness test apparatus using a dual TEM cell, and show its validity. By considering the structure of dual TEM cell that consists of a pair of cells coupled via an aperture in their common wall, we defined the capacitance C ...

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