the optimum shape of balance weights is determined, using two different criteria. according to one, one of the balance weights should have minimum size. while the other requires that the mass moment of inertia about the axis of rotation should be minimum. in the second case, the calculus of variation is used to determine the optimum shape. graphs are presented to enable designers to find the di...

Ref. RF value, Mean, Int. No. of Mean, mt. No. of nt. unlts/mL unlts/mL runs unlts/mL runs w,oa 100 253 3 110 11 CDCb 100

Introduction High intensity focused ultrasound (HIFU) is considered a noninvasive and effective technique for tumor ablation. Frequency and acoustic power are the most effective parameters for temperature distribution and the extent of tissue damage. The aim of this study was to optimize the operating transducer parameters such as frequency and input power in order to acquire suitable temperatu...

introduction: the aim of this study was to evaluate the composite surface treated by different powers of erbium-doped yttrium aluminum garnet (er:yag) laser in comparison with bur preparation via scanning electron microscope. methods: fourteen composite resin blocks with 15× 10 × 10 mm dimensions were used in this study. the samples were divided to seven groups as follow: group 1 (power: 1 w, e...

We study the gold-plated purely leptonic signal and background rates at the LHC for the ZZ, W + W − , W ± Z and W ± W ± final states associated with strongly interacting electroweak symmetry breaking. We work at an energy of √ s = 14 TeV, and develop a combination of back-to-back leptonic, central-jet-vetoing and forward-jet-tagging cuts that suppresses the Standard-Model backgrounds. We find t...

During growth in the presence of 10 ng of [3H]pteroylglutamic acid (PteGlu) per ml of medium, Zactobacillus casei (ATCC ‘7469) incorporated 80 to 90 % and Strepfococcus faecolis (ATCC 8043) 40 to 60% of the added radioactivity. Folate compounds in Z. cusei were identified as reduced derivatives of PteGlus (w-19%), of PteGlus (-42 %), of PteGlu, (~14%)~ and PteGluc (-8%); in S. faecalis as reduc...

root ofplumbago indica linn is used in ayurveda and siddha medicine for the treatment of colic inflammations bronchitis, helminthiasis, hemorrhoids, elephantiasis, hepatosplenomegaly, amenorrhea, odontalgia, piles, and diabetes. the present study aims to investigate the anatomical characters of thin and thick root and to confirm the physicochemical characters of the root. anatomical studies and...