نتایج جستجو برای: 30 cm and 30 cm then
تعداد نتایج: 16915215 فیلتر نتایج به سال:
Rapeseed (Brassica napus L.) is an important alternate oilseed crop in eastern Anatolia, Turkey. No information on plant density for rapeseed is available in this region. Therefore a study was initiated to investigate the effects of spacings between rows and spacings within rows on the yield and agronomic characteristics of two genotypes of spring rapeseed (Tower and Lirawell) in Erzurum, easte...
The 351 .l-nm photoelectron spectra of HFC=C:and F2C=C:are reported. Transitions from the anion ground state to the neutral singlet ground state and low-lying triplet states are observed. The electron affinity of difluorovinylidene is 2.255 (6) eV, and the triplet term energy is To(H 3A2 F,CC) = 0.924 (9) eV. In the singlet state of F2C=C:, vibrational progressions are observed at 510 (25), 905...
The objective of this research was to evaluate bromide leaching in a field under corn, wheat and alfalfa. Potassium bromide (300 kg/ha) was uniformly applied and 15 mm of water was sprinkled over the plots in the first and second years. Plots were leached 8 times during the first year and 9 times in the second year (each time with 100 mm of water). Soil samples were collected at 0-30, 30-60, 60...
The objective of this research was to evaluate bromide leaching in a field under corn, wheat and alfalfa. Potassium bromide (300 kg/ha) was uniformly applied and 15 mm of water was sprinkled over the plots in the first and second years. Plots were leached 8 times during the first year and 9 times in the second year (each time with 100 mm of water). Soil samples were collected at 0-30, 30-60, 60...
BACKGROUND The Flutter VRP1 device is used for airway clearance. Its performance is based on 4 basic effects: positive expiratory pressure (PEP), forced exhalations (huff), high-frequency airway flow oscillation, and modification of mucus viscoelasticity. The purpose of this study was to determine the flow and angle conditions in which these effects are optimized. METHODS In an experimental s...
We present a simultaneous spectrum of Sgr A* observed on June 17, 2003. 1.3 and 0.7 cm were measured using the VLA and at 47 cm using the GMRT. On the same date, the SMA and Keck II observed Sgr A* at 0.89 mm and at 3.8 µm, respectively. In agreement with Falcke et al (1998), the spectrum at centimeter wavelengths suggests the presence of a break near λ b ∼3.6 cm (8.3 GHz). The spectrum between...
Planting pattern through changing vegetative growth and utilization of environmental resourses affects yield components and seed yield. These effects were studied in the spring of 2000 at the Agricultural Research Station, Isfahan University of Technology, using a randomized complete block design with a split plot layout and three replications. Main plots consisted of three row distances (30 cm...
This research was performed at the Natural Resources Department Research Farm of Isfahan University of Technology to investigate the effect of slag mulch on the amount of wind erosion and its threshold velocity using a wind tunnel. Soil samples from the study area “segzy plan” in the East area of Isfahan were placed in 100 by 30 cm trays to a depth of 3 cm. Four levels of coverage of slag: 25, ...
using gate’s technique for gfr measurement with gamma camera, the patient is received 5mci of tc-99m-dtpa. by this amount of radioactivity, good quality renal scan is not possible. this study tries to optimize gate’s technique for gfr measurement during routine renal scan (with 10-15 mci). methods and materials: scanning was performed for 60 seconds from samples of tc-99m with activities of 3, ...
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