نتایج جستجو برای: 6 blocks

تعداد نتایج: 1025839  

Journal: :Computer Science and Information Technology 2017

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی 1391

in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...

2012
M. Birna van Riemsdijk Catholijn M. Jonker Thomas Rens Zhiyong Wang

This paper presents a game intended to train teams that have both individual and teams goals to negotiate collaboratively in order to reach the team goal in the best way possible. We consider self-managing teams, i.e., teams that do not have a hierarchical structure. The importance of the team goal in comparison to their individual goals is touched upon, as are various conflicts that can occur ...

Journal: :iranian journal of cancer prevention 0
a iftikhar center for nuclear medicine and radiotherapy (cenar), bmc complex, quetta, pakistan m wazir institute of nuclear medicine, oncology and radiotherapy, abbotabad, pakistan mb kakakhail pakistan institute of engineering and applied sciences (pieas) islamabad, pakistan a sbilal pakistan institute of engineering and applied sciences (pieas) islamabad, pakistan a khwaja center for nuclear medicine and radiotherapy (cenar), bmc complex, quetta, pakistan a khushnaseeb center for nuclear medicine and radiotherapy (cenar), bmc complex, quetta, pakistan

background: during radiotherapy treatment, critical organs are shielded using lead and cerrobend blocks. the objective of this study is to compare the effects of lead and cerrobend shielding blocks on incident photon beam. methods: collimator scatter factors were measured for open square fields (3 x 3 cm to 40 x 40 cm) defined by collimator jaws and for fields blocked down to smaller asymmetric...

2002
R. L. Fante J. J. Vaccaro

It is demonstrated that an array of N dual-polarized antennas can cancel up to 2N-1 broadband interferers, while still maintaining a high probability of GPS satellite availability.

2000
Washington Taylor

This note focuses on the coupling of a type IIA D2-brane to a background B field. It is shown that the D0-brane charge arising from the integral over the D2-brane of the pullback of the B field is cancelled by bulk contributions, for a compact D2-brane wrapping a homotopically trivial cycle in space-time. In M-theory this cancellation is a straightforward consequence of momentum conservation. T...

2003
Harvendra Singh

In this paper we construct generalised Penrose limits for the solutions of massive type IIA supergravity. We consider the Freund-Rubin type solution and apply these massive Penrose limits and obtain supersymmetric pp-wave which is standard type IIA background. The results in this paper can be easily generalised for the cases of gauged supergravities.

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