Results 71 to 80 of about 2,301,844 (201)

Investigations of Surface Roughness and Temperatures in Vegetable Oil-based n-MQL Turning of AISI 4340 Steel [PDF]

Journal of Engineering, Project, and Production Management
Machining of hard materials has been difficult and expensive because of poor surface smoothness, early tool failures, etc. When used in machining hard materials, such as medium and high carbon, cast steels, Inconel, and other alloys, nanomaterials ...
VeeraBhadraRao Miriyala, Bhushan T. Patil, Vasim A. Shaikh, D.S.S. Sudhakar, Sujata Deshmukh   +4 more
doaj   +1 more source

Generation of intense negative ion beams [PDF]

, 1987
An electron gun is used with a mirror electrostatic field to produce zero or near zero velocity electrons by forming a turning point in their trajectories.
Aladzhadzhyan, Samuel H., Chutjian, Ara, Orient, Otto J.   +2 more
core   +1 more source

Natural dye modification of polyethylene oxide: optical characterization and dielectric enhancement

Journal of Materials Science: Materials in Engineering
This study explores the optical properties of polyethylene oxide (PEO) modified with natural dye extracted from hollyhock (HH) flowers. This study is a green chemistry approach to reduce the optical band gap of PEO polymer.
Shujahadeen B. Aziz, Dana S. Muhammad, Sewara J. Mohammed, Daron Q. Muheddin, Shakhawan Al-Zangana, Ahang M. Hussein, Ary R. Murad, Govar H. Hamasalih, Samir M. Hamad, Dilshad Shaikhah   +9 more
doaj   +1 more source

Comparative study of cutting force development during the machining of un-hybridized and hybridized ZA43 based metal matrix composites

Journal of the Mechanical Behavior of Materials, 2019
In the present study, turning of two grades of composites such as ZA43 silicon carbide and ZA43 silicon carbide and graphite was carried out. The fabrication of both categories of composites were done using stir casting technique.
Kumar K. J. Santhosh, Marigoudar Rajaneesh N.   +1 more
doaj   +1 more source

Homogeneous Field and WKB Approximation In Deformed Quantum Mechanics with Minimal Length

, 2015
In the framework of the deformed quantum mechanics with minimal length, we consider the motion of a non-relativistic particle in a homogeneous external field. We find the integral representation for the physically acceptable wave function in the position
Tao, Jun, Wang, Peng, Yang, Haitang
core   +2 more sources

Methods of In-Process On-Machine Auto-Inspection of Dimensional Error and Auto-Compensation of Tool Wear for Precision Turning

Applied Sciences, 2016
The purpose of this study is mainly to develop an information and communication technology (ICT)-based intelligent dimension inspection and tool wear compensation method for precision tuning.
Shih-Ming Wang, Yung-Si Chen, Chun-Yi Lee, Chin-Cheng Yeh, Chun-Chieh Wang   +4 more
doaj   +1 more source

Chemotactic Turning Behaviour of Tubularia Spermatozoa [PDF]

, 1970
1. The movements of Tubularia spermatozoa in the vicinity of micropipettes filled with extracts of female hydranths, which chemotactically attract the spermatozoa, have been recorded by multiple-flash photomicrography. 2.
Brokaw, C. J., Miller, R. L.
core  

A turning point analysis of the ergodic dynamics of iterative maps

, 1997
The dynamics of one dimensional iterative maps in the regime of fully developed chaos is studied in detail. Motivated by the observation of dynamical structures around the unstable fixed point we introduce the geometrical concept of a turning point which
Diakonos, F. K., Schmelcher, P.
core   +1 more source

Comparative Analysis of Dry, Minimum Quantity Lubrication, and Nano-Reinforced Minimum Quantity Lubrication Environments on the Machining Performance of AZ91D Magnesium Alloy

Machines
This study investigates the machining performance of AZ91D magnesium alloy under three different cooling environments: dry, minimum quantity lubrication (MQL), and nano-reinforced MQL (NanoMQL) with multi-walled carbon nanotubes. Turning experiments were
Berat Baris Buldum, Kamil Leksycki, Suleyman Cinar Cagan   +2 more
doaj   +1 more source

Business confidence and cyclical turning points: A Markov-Switching approach [PDF]

, 2007
Markov regime-switching analysis is used to consider the relationship between business confidence and the probability of turning points in cyclical GDP.
Holmes, Mark J., Silverstone, Brian
core   +1 more source