Results 1 to 10 of about 17,039 (235)

Microstructure, texture evolution and mechanical properties of a large-scale multidirectionally forged Mg-Gd-Y-Zn-Zr-Ag alloy

Journal of Materials Research and Technology, 2023
A large-scale Mg-6.2Gd-3.7Y-0.9Zn-0.3Zr-0.3Ag (wt.%) magnesium component with the dimension of 480 × 250 × 160 mm3 was fabricated via direct-chill (DC) casting, homogenization and multidirectional forging (MDF).
Junkai Wang, Chuming Liu, Shunong Jiang, Guang Zeng   +3 more
doaj   +1 more source

Effects of sampling rate on automated fatigue recognition in surface EMG signals

Current Directions in Biomedical Engineering, 2015
This study investigated the effects different sampling rates may produce on the quality of muscle fatigue detection algorithms. sEMG signals were obtained from isometric contractions of the arm.
Kahl Lorenz, Eger Marcus, Hofmann Ulrich G.   +2 more
doaj   +1 more source

PENYEMPURNAAN SIFAT PAPAN SERAT KERAPATAN SEDANG DARI PELEPAH NIPAH DAN CAMPURANNYA DENGAN SABUT KELAPA

Jurnal Penelitian Hasil Hutan (Journal of Forest Products Research), 2013
Dewasa ini, potensi bahan serat konvensional (khususnya kayu) untuk pembuatan papan serat berkerapatan sedang (MDF) semakin terbatas dan langka. Penggunaan bahan serat alternatif yang tersedia berlimpah dan belum banyak dimanfaatkan, yaitu pelepah nipah ...
Dian Anggraini Indrawan, Han Roliadi, Rossi Margareth Tampubolon, Gustan Pari   +3 more
doaj   +1 more source

Constitutive Model and Microstructure Evolution Finite Element Simulation of Multidirectional Forging for GH4169 Superalloy

Metals, 2020
This study investigates three processes of multidirectional forging (MDF), namely, closed MDF (CMDF), single-open MDF, and double-open MDF, by using a constitutive equation and a dynamic recrystallization model of hot deformation of the GH4169 superalloy.
Yongbo Jin, Chenyang Xi, Peng Xue, Chunxiang Zhang, Sirui Wang, Junting Luo   +5 more
doaj   +1 more source

Electrosprayed polymeric nanobeads and nanofibers of modafinil: preparation, characterization, and drug release studies [PDF]

BioImpacts, 2019
Introduction: Modafinil (MDF) is used orally for the treatment of attention-deficit/hyperactivity disorder and narcolepsy. It holds low solubility and high permeability; therefore, improving its dissolution properties by preparing nanoformulations can be
Khosro Adibkia, Sevil Selselehjonban, Shahram Emami, Karim Osouli-Bostanabad, Mohammad Barzegar-Jalali   +4 more
doaj   +1 more source

Dimensional Stability Properties of Medium-Density Fiberboards Produced Using Silicone-Based Chemicals

Drvna Industrija
The purpose of this study was to investigate the effects of two different silicon-based water-repellent chemicals (Dow Corning 87 and Xiameter PMX-200 1000cs) added to melamine urea formaldehyde glue (1.07 mol, 5 % melamine additive) in different ...
Meryem Ondaral, Mustafa Usta, Sedat Ondaral   +2 more
doaj   +1 more source

Changes of Microstructures and Mechanical Properties in Commercially Pure Titanium after Different Cycles of Proposed Multi-Directional Forging

Metals, 2019
A newly proposed multi-directional forging (MDF) was successfully applied to a commercially pure titanium (CP Ti). Severe plastic deformation would result in significant and complex changes of microstructure and mechanical properties, so microstructure ...
Zhanguang Zheng, Xiaoying Zhang, Liang Xie, Longgui Huang, Teng Sun   +4 more
doaj   +1 more source

Effects of Nanoclay Modification with Aminopropyltriethoxysilane (APTES) on the Performance of Urea–formaldehyde Resin Adhesives

BioResources, 2023
Urea-formaldehyde (UF) resins, as the most common adhesives for wood-based composites, emit formaldehyde, which is forcing producers to find a solution to this problem. Using scavengers is a practical way of reducing formaldehyde emissions, but sometimes
Leila Asadi Khorramabadi, Rabi Behroozb, Saeed Kazemi   +2 more
doaj   +2 more sources

The Effect of Diluent on the Release of Benzene Series from Nitrocellulose-Lacquered MDF

Atmosphere, 2022
Because the surface of MDF is not aesthetically pleasing, it usually needs to be veneered and then painted, but such a board releases harmful VOCs, among which Benzene Series is the most harmful.
Xiaolei Cui, Junhong Ma, Huifang Li
doaj   +1 more source

The effects of some flame retardant chemicals used in surface coating on the burning properties of MDF (Medium density fiberboard)

Turkish Journal of Forestry, 2017
In this study, the surfaces of MDF were coated with a mixture of calcite, fire retardant (FR) and glue. Then the properties of MDF boards combustion resistance were investigated.
Ferhat Özdemir, Arif Ayaz
doaj   +1 more source