نتایج جستجو برای: penetration

تعداد نتایج: 35603  

ژورنال: مواد پرانرژی 2015

One application of energetic materials in the military is shaped charged warhead. The most important application of this type of warheads is penetration into target. For this purpose, several factors influence the design of shaped charge. Liner thickness is one of most effective factors in the design of shaped charge, which has a significant role in jet Velocity and depth of penetration in targ...

2016
Sven Türpe Laura Kocksch Andreas Poller

Many software vendors conduct or commission penetration testing of their products. In a penetration test security experts identify entry points for attacks in a software product. The audits can be an eye-opener for development teams: they realize that security requires much more attention. However, it is unclear what lasting benefits developers can reap from penetration tests. We report from a ...

Journal: :Investigative ophthalmology & visual science 1977
W J O'Brien H F Edelhauser

Trifluorothymidine (F3TdR) and idoxuridine (IDU) were observed to penetrate through the cornea from the epithelial side at a greater rate than adenine arabinoside (ARA-A) during in vitro corneal perfusions. Removal of the epithelium increased the rate of penetration of F3TdR and IDU by about twofold and the rate of ARA-A penetration by fivefold. The kinetics of antiviral penetration did not dis...

2013
Hu Huang Hongwei Zhao Chengli Shi Lin Zhang Shunguang Wan Chunyang Geng

Randomness and discreteness for appearance of pop-out of the single crystal silicon with a (100) orientation were studied by a self-made indentation device. For a given maximum penetration load, the load Ppo for appearance of pop-out fluctuates in a relatively large range, which makes it hard to study the effect of the loading/unloading rate on the load Ppo. Experimental results with different ...

Journal: :journal of dental research, dental clinics, dental prospects 0
i̇smail uzun ondokuz mayıs university cangul keskin ondokuz mayıs university buğra güler

background and aims. the aim of this study was to evaluate the sealing ability of kryptonite bone cement (doctors research group inc, southbury, ct, usa) in retrograde cavities by comparing with mineral trioxide aggregate (mta) (dentsply tulsa dental specialties, tulsa, ok, usa), amalgam and intermediate restorative material (irm) (dentsply caulk, milford, de, usa) using ultrasonic retrograde p...

Journal: :international journal of civil engineering 0
m. anwer khan deptt ofcivil engg, amu aligarh

investigation of projectiles penetration phenomenon has been carried out in non-cohesive soil (sand) targets under dry, saturated and compacted conditions. analytical studies have been performed on the linear and non-linear soil models to obtain penetration depth formulae for ogival nose projectile and the results are verified by experimental studies. in present work, three ogival nose projecti...

Journal: :the iranian journal of pharmaceutical research 0
cheong-weon cho college of pharmacy, chungnam national university, daejeon, 305-764, korea. deok-bae kim college of medicine, chosun university, gwangju 501-759, korea. sang-chul shin college of pharmacy, chonnam national university, gwangju 500-757, korea.

topical drug dosage forms such as ointments and creams can be easily removed through wetting, movement and contact. the new bioadhesive formulations with enhanced local anesthetic effects are needed for topical administration. the adhesive capacity of hydroxypropyl methylcellulose (hpmc) was determined by measuring the maximum detachment force and the adhesion work with an auto peeling tester. ...

2015
Ren’ai Li Yan Zhang Yunfeng Cao Zhulan Liu

This study investigated ink penetration through imaging technology, first by gray and contour mapping and then calculating the ink penetration depth by programing. Next, a series of further analyses were carried out, including average ink permeability, ink distributions, and printability of different uncoated inkjet paper with different parameters. The impact on ink penetration of the microstru...

Journal: :Ultrasonics 2014
Dung-An Wang Hai-Dang Nguyen

An ultrasonic planar horn with a Bézier profile is developed. The first longitudinal displacement mode of the horn is exploited for high displacement amplification in order to reduce the penetration force required to enter and cut materials. The displacement amplification and stress distribution characteristics of the Bézier horn and the commonly used catenary horn are examined. The penetration...

Journal: :international journal of iron & steel society of iran 2006
m. h. amin a. kazemzadeh b. arfaei n. saha-chaudhury v. sahajwalla

in this study, slag penetration into a magnesia refractory monolithic was investigated by the crucible test method. a synthetic calcium aluminate slag system has been used to study commercial magnesia mix refractory for 1, 2, 3, 4, 5 and 6 hours at 1450°c and 1600°c. it has been shown that the penetration rate is controlled by a diffusion mechanism at 1450°c. in this case, capillaries are the ...

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