نتایج جستجو برای: 4 400 mm
تعداد نتایج: 1497865 فیلتر نتایج به سال:
We describe the design of a low temperature scanning Hall probe microscope (SHPM) for a dilution refrigerator system. A detachable SHPM head with 25.4 mm OD and 200 mm length is integrated at the end of the mixing chamber base plate of the dilution refrigerator insert (Oxford Instruments, Kelvinox MX-400) by means of a dedicated docking station. It is also possible to use this detachable SHPM h...
– On the morning of September 18, 1989, a category-four hurricane struck eastern Puerto Rico with a sustained wind speed in excess of 46 m/sec. The 24-h rainfall accumulation from the hurricane ranged from 100 to 339 mm. Average rainfall intensities ranging from 34 to 39 mm/h were calculated for 4 and 6 h periods, respectively, at a rain gage equipped with satellite telemetry, and at an observe...
To investigate the effects of nutrient-solution concentrations of potassium (K) and calcium (Ca), as well as different ratios of K/Ca, on growth and flowering of lisianthus (Eustoma grandiflorum) under soilless culture conditions, a factorial experiment was conducted with two factors including two K levels (300 and 400 mg/L) and three Ca levels (80, 100 and 160 mg/L). Results showed that K= 400...
در این پروژه، دوزیمتری به روش سه بعدی ژل پلیمر با اضافه شدن نانوذرات طلا به ژل پلیمر magica انجام شد. همچنین با استفاده از کد محاسباتی mcnpx ژل پلیمر به منظور مقایسه با کار آزمایشگاهی شبیه سازی شد. ژل پلیمر ساخته شده در این طرح در محدوده ی دوز cgy 600-0 خطی است و قدرت تفکیک دوز کمتر از 7/0 گری دارد. با اضافه شدن نانوذرات طلا به قطر 50 نانومتر و با غلظت های mm 1/0، mm 2/0 و mm 4/0 به ژل پلیمر ma...
For the first time, the deflection of an ultra-relativistic, fully stripped Pb ion beam in a bent silicon crystal has been observed. The ions were provided by the CERN-SPS in the H4 beam at a momentum of 400 GeV/c per unit of charge. A 60 mm long silicon crystal, bent over 50 mm to give a 4 mrad deflection angle, was used in this experiment. The measured Pb ion deflection efficiency is comparab...
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