Results 31 to 40 of about 1,835,803 (307)

Numerical and Experimental Analysis of the Powder Flow Streams in the Laser Aided Material Deposition Process [PDF]

open access: yes, 2004
Axial powder stream concentration between the nozzle end and the deposition point is an important process parameter in the laser aided material deposition process. The powder concentration is greatly influenced by the nozzle geometry in use. This paper
Liou, Frank, Pan, Heng, Thakar, Yogesh
core   +2 more sources

"BAKING POWDER." [PDF]

open access: yesJAMA: The Journal of the American Medical Association, 1884
n ...
openaire   +3 more sources

Mandatory Minimum Sentencing Policies and Cocaine Use in the U.S., 1985–2013 [PDF]

open access: yes, 2018
Background: As of May 2017, the United States federal government renewed its prioritization for the enforcement of mandatory minimum sentences for illicit drug offenses.
Mezuk, Briana, Walker, Lauryn Saxe
core   +2 more sources

Significant effect of concentration ratio in synthesizing titania nanoflowers (TNF) powder via facile hydrothermal method [PDF]

open access: yes, 2018
The significant effect of titanium butoxide and hydrochloric acid (TBut/HCl) concentration ratio in synthesizing titania nanoflowers (TNF) towards powder morphologies, crystallographic phases, surface area and band gap were investigated.
Abd Rashid, Abdul Qaiyyum   +9 more
core   +1 more source

A Model for Partial Viscous Sintering [PDF]

open access: yes, 1991
A mathematical model describing the sintering rate of a viscous material powder bed is presented. This model assumes that the powder bed is composed of cubic packed, equal-size spherical particles.
Barlow, Joel J.   +3 more
core   +1 more source

Ultrahigh energy density in dielectric nanocomposites by modulating nanofiller orientation and polymer crystallization behavior

open access: yesAdvanced Powder Materials
High-energy density dielectrics for electrostatic capacitors are in urgent demand for advanced electronics and electrical power systems. Poly(vinylidene fluoride) (PVDF) based nanocomposites have attracted remarkable attention by intrinsic high ...
Ru Guo   +8 more
doaj   +1 more source

MODIFICATION OF THE ENERGY-SATURATED HETEROGENEOUS COMPOSITE MATERIAL BY CYCLIC NITRAMINES

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2018
Several methods have been described for increasing the main characteristics (density, heat of combustion, combustion temperature, gas formation index) and operating properties (combustion speed and temperature, total and specific impulse, properties of ...
A. Ph. Ilyushchanka   +2 more
doaj   +1 more source

Optimization of the rock blastings in opencast mines using hydromite emulsion explosives

open access: yesMining Science, 2014
In the current paper, measurement results of the detonation parameters for model emulsion explosives are presented, one of the matrices constituting a base for Hydromite – 100 and 70; the work additionally details the results of the rock blastings ...
Andrzej Maranda   +4 more
doaj   +1 more source

A dual-transmission-bands rasorber with improved absorption and oblique incidence performance

open access: yesScientific Reports, 2022
In this paper, a high-absorption and dual-transmission-bands rasorber (HADTR) was proposed. Different from the reported designs, a foam layer and a FR4 layer are added as top layers in HADTR to improve its absorption and oblique incidence performance ...
Zheyipei Ma   +3 more
doaj   +1 more source

Hemostatic Comparison of a Polysaccharide Powder and a Gelatin Powder [PDF]

open access: yesJournal of Investigative Surgery, 2018
Purpose/Aim: Powdered hemostats have been widely adopted for their ease-of-use; however, their efficacy has been limited resulting in applications restricted to low-level bleeds. This study investigates the use of bovine-derived gelatin particles (BGP) as a standalone hemostatic powder and compare BGP to commercially available microporous ...
Rahul K. Singh   +6 more
openaire   +3 more sources

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