نتایج جستجو برای: cylinder needle
تعداد نتایج: 60543 فیلتر نتایج به سال:
ماده معدنی کربنات باریم به فرمول baco3 پودر سفید کریستالی است که کانسار طبیعی آن ویترایت می باشد. این ماده دارای کاربردهای فراوانی در صنایع شیشه، سرامیک ، الکترو سرامیک و ابر رساناها می باشد. در این پروژه به بررسی و تحقق در مورد فرآیند کریتالیزاسیون رسوبی تولید کربنات باریم و چگونگی رشد کریستالهای آن پرداخته می شود. به این منظور ابتدا در مورد خواص شکل ظاهری کریستالها و فرآیند کریستالیزاسیون مطا...
BACKGROUND The authors used an in vitro model to investigate the ability of an erbium, chromium:yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser with radial emitting tips to disinfect Enterococcus faecalis-infected dentin. MATERIALS AND METHODS The in vitro infected-dentin model system consisted of a dentin cylinder, prepared from a human anterior tooth root, cemented into a sealable two-ch...
In this study, eight Scots pine populations from Turkiye were studied to explore the influence of different habitats and altitudinal zones on needle anatomical traits. A total 496 needles belonging 64 individuals examined using light microscopy with aim score variability sixteen Variance analysis showed significant differences in thickness, width, resin canal number, diameter, central cylinder ...
background and objectives: fine needle aspiration cytology (fnac) is an established out- patient procedure used in primary diagnosis of palpable thyroid lesions. a modified technique fine needle capillary sampling (fncs) obviates the need of suction, is less painful, patient friendly and reported to overcome the problem of inadequate and bloody specimens. the aim of our study was to compare the...
the effective factors of forward speed, cylinder rotation, and clearance between a combine’s cylinder and concave on wheat kernel breakage and seed germination were studied in karaj area using a 955 model john dear combine. this study was conducted on three levels of adjustment for each of the variables, 1.2, 1.8 and 2.5 km/hr for forward speed, 800, 900, 1000 rpm for cylinder rotation as well ...
multistage and semi-mechanized harvesting of rice in khouzestan province, iran, causes much loss. depending on available facilities and conditions, either spike-tooth or rasp-bar cylinders are employed with either direct or indirect combine harvesting methods. the present research studied the effect of these different harvesting methods on the amount of losses in two rice varieties in 2001-2002...
by aluminlum shows the presence of a very short range component issuing from the platinum surface. This component makes a noticeable contribution to the count-rate up to an absorber thickness of 80 mg Al/crn s. I t is observed with approximately the same relative intensity if the needle is surrounded by platinum, but it is absent if the needle is surrounded by aluminium. I t is reasonable to as...
background: good cytological sample is very important for the cytological diagnosis of thyroid nodules. the aim of this study was to evaluate the adequacy of prepared samples by the combination of aspiration and non- aspiration fine needle biopsy. methods: in this descriptive – analytical study, sampling was done simultaneously for each patient in fine needle aspiration and non-aspiration biops...
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