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دکتر محمد رئوف
درویش
author
دکتر مهندس یحیی
عبده
author
text
article
1978
per
-
Journal of Science,University of Tehran(not publish)
پرديس علوم
1
v.
0
no.
1978
https://jos.ut.ac.ir/article_16574_e6659b81faf5bcb11085690d7a9d6da2.pdf
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دکتر ح. دانش
پژوه
author
text
article
1978
per
-
Journal of Science,University of Tehran(not publish)
پرديس علوم
1
v.
0
no.
1978
https://jos.ut.ac.ir/article_16575_2f4cfca939504572f6f47c97230b76ae.pdf
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دکتر بیژن
رستگار
author
text
article
1978
per
-
Journal of Science,University of Tehran(not publish)
پرديس علوم
1
v.
0
no.
1978
https://jos.ut.ac.ir/article_16576_cad2e0c484fccc220c43dd09bb64fd4b.pdf
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دکتر علی حائری
روحانی
author
text
article
1978
per
The motoneurotrophic influence on different properties of skeletal muscle fibers was examined in Soleus and Tibialis muscles of the rat. During the first few days after denervation the resting potential decreases, the action potential is reduced and a spontaneous fibrillation potentials develop. The frequency of fibrillation is similar in tibialis anterior (fast muscle) and soleus (slow muscle) but the number of fibers showing fibrillation potnetials after denervation is variable.
Journal of Science,University of Tehran(not publish)
پرديس علوم
1
v.
0
no.
1978
https://jos.ut.ac.ir/article_16577_a1bc15a59edd181f1bf8997f33a712d3.pdf
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دکتر حسین
سپاسگزاریان
author
text
article
1978
per
-
Journal of Science,University of Tehran(not publish)
پرديس علوم
1
v.
0
no.
1978
https://jos.ut.ac.ir/article_16578_1fd8aacff43d9e7361f1bf0fc3840f57.pdf
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دکتر صادق فرهی
آشتیانی
author
text
article
1978
per
Effects of B4, CCC and ALAR on growth, root length and resistance to lodging and wilting were studied in wheat plants, (Tritium, sp.var. Omid and Rosh an). The plants were grown under control conditions in a greenhouse, growth room and fields.
B4 - application reduced the length of 15t and 2nd leaves of wheat seedlings significantly.
CCC significantly reduced the height of the 1 leaves and increased the length of the 2nd leaves in the first few
days after germination.
Combined application of B4 and CCC delayed the lodging of seedlings under laboratory conditions.
ALAR application seemed to have no effect on this parameters.
(x) This paper is presented in detail in
Persian language in this volume Using the CCC as a foliar spray, it was observed that
breakage of wheat plants in field trials was decreased.
The field experiments with CCC resulted in a shortening of the stalks, an increase of the weight of 1000 Grains and a higher yield of wheat with both a higher and a normal rate of N-fertilization.
The ratio of root to shoot weight of wheat seedlings was increased by B4 and CCC., this increment may occur through a reduction in shoot weight or an increase in root growth.
Root length of wheat seedlings was increased significantly by CCC application, but no changes in root length were observed using a normal concentration of B4-treatment.
Journal of Science,University of Tehran(not publish)
پرديس علوم
1
v.
0
no.
1978
https://jos.ut.ac.ir/article_16579_d1b022f89ed88a9233e0ab2dd97f41a9.pdf
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دکتر علی درویش
زاده
author
text
article
1978
per
-
Journal of Science,University of Tehran(not publish)
پرديس علوم
1
v.
0
no.
1978
https://jos.ut.ac.ir/article_16580_89b2c7e0b8a8ffbe972c4d25f6abb080.pdf
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دکتر مه لقا قربانی
(معتمد)
author
text
article
1978
per
-
Journal of Science,University of Tehran(not publish)
پرديس علوم
1
v.
0
no.
1978
https://jos.ut.ac.ir/article_16581_329a45f62847a498f6a6619b05116a55.pdf
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دکتر خسرو
تهرانی
author
علی بابا
چهرازی
author
text
article
1978
per
The studied area is a part of the Damghan Quadrangle (1:100,000) and located approximately 35 km North-west of the city of Damghan. The area is covered by sediments from the upper Devonian to the Recent. The most abundant outcrops are of Mesozoic sediments. The igneous rocks are basic and have been intruded into liassic shale's. An unconformity between the upper Jurassic and Cretaceous sediments, resulting from the orogeny of Late Jurassic-Early Cretaceous (Late Kimerian) is observed. The second most common outcrops are of Cenozoic sediments. The fact that sediments of Late Eocene and Oligocene were not deposited in the area can be related to the orogeny of Late Eocene-Early Oligocene. The Quaternary and Recent deposits are mostly conglomerate and alluvium.
Journal of Science,University of Tehran(not publish)
پرديس علوم
1
v.
0
no.
1978
https://jos.ut.ac.ir/article_16582_7540f1196e695552010c7ae251626bb5.pdf
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دکتر صمد
فرخی
author
عارف قلی
نیا
author
مرتضی
لاریجانی
author
text
article
1978
per
As industry grows, the need for materials with new Physical and Mechanical properties becomes more pronounced.
The splat cooling method was proposed by Duwnez (1960), as a means to achieve new materials. Since its introduction by employing this method, more solids with completely new physical characteristics and higher solubility have been found.
Amphorophous and intermediate phases of solids, have also been recognized.
Aluminum, because of its unique industrial workability, however, have been particularly investigated. For example the workers have endeavored to achieve a new alloy using uncommon percentages of impurities (e.g. Solid Solubility of Ni/Al in equilibrium state is Max. Ni 0.023% at Al).
Even this method of splat cooling, has not been all that successful in increasing the degree of solid solubility of Ni in Al to much extent.
In this research, employing a. new method we have
been able to mix Al and Ni by co-evaporation, to produce a new Alloy.
This research was carried out in the Physics Laboratories of Tehran University, Faculty of Engineering and also Faculty of Science and is presented in detail in Persian.
Journal of Science,University of Tehran(not publish)
پرديس علوم
1
v.
0
no.
1978
https://jos.ut.ac.ir/article_16583_d637533a844275b9ad50067bf2154011.pdf
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دکتر ایرج
بیات
author
دکتر زهره عابدین
زاده
author
حسین
غفوریان
author
text
article
1978
per
Lead is considered as one of the most toxic elements emitted into the atmosphere due to the combustion of gases and the automobiles has been regarded as the main source. Several workers have shown that atmospheric Pb levels are directly related to traffic volume and inversely related to the distance from highways.
This element enters into human body by ingestion, inhalation and in some cases by absorption through the skin. The contribution of atmospheric Pb to blood Pb has also been reported by several workers.
Experiments were conducted to determine the Pb concentration in blood and urine of Tehran’s population. Blood and urine lead levels are found to be closely related to traffic volume, and its level in blood increases progressively with age. Blood lead levels were also significantly higher in cancer patient as compared with others.
Journal of Science,University of Tehran(not publish)
پرديس علوم
1
v.
0
no.
1978
https://jos.ut.ac.ir/article_16584_3e465d7e84a33918a99afac123227c8b.pdf