Results 21 to 30 of about 13,905,908 (327)

The Preparation of the ZnPc/PbPc Hybrid Vapor Deposition Thin Film Diode

open access: yesJournal of Harbin University of Science and Technology, 2019
Organic thin film diode selected zinc phthalocyanine and plumbum phthalocyanine (ZnPc and PbPc) were mixed as the active layer of the device. The hybrid thin film diodes structure of Cu/ ZnPc+ PbPc/ Al was prepared using a variety of coating methods ...
ZHAO Shuang, ZHU Min
doaj   +1 more source

Research on the Operating Characteristics of Hydraulic Free-Piston Engines: A Systematic Review and Meta-Analysis

open access: yesEnergies, 2021
The hydraulic free-piston engine (HFPE) is a kind of hybrid-powered machine which combines the reciprocating piston-type internal combustion engine and the plunger pump as a whole.
Fukang Ma   +3 more
doaj   +1 more source

On inhibiting runaway in catalytic reactors [PDF]

open access: yes, 1978
We consider the problem of heat and mass transfer in porous catalyst pellets. Both the steady and time dependent operating characteristics are studied. Accurate approximate equations are derived from the basic governing equations of motion.
Cohen, Donald S., Matkowsky, Bernard J.
core   +1 more source

Analysis on Operation Characteristics of 350 MW Waste Heat Boiler Under Variable Working Conditions

open access: yes南方能源建设, 2022
[Introduction] Integrated Gasification Combined Cycle (IGCC) power generation technology is a high-efficiency and low-carbon power generation technology. A waste heat boiler is one of the components of IGCC.
Pei LU   +7 more
doaj   +1 more source

Operation Optimization of Combined Heat and Power Units Based on Energy Consumption, Economy and Carbon Emission

open access: yesZhongguo dianli, 2023
A multi-objective optimization model for combined heat and power units is established to address the problem of difficulty in balancing energy consumption, economy and low carbon in the operation of the combined heat and power units.
Xin REN   +3 more
doaj   +1 more source

Multi-objective optimization of hypoid gears to improve operating characteristics

open access: yesMechanism and Machine Theory, 2019
In this paper a multi-objective optimization method of hypoid gears correlating to the operating characteristics is presented. Optimal design of hypoid gears demands that multiple objectives be simultaneously achieved.
V. Simon
semanticscholar   +1 more source

Magnetic field and operating performance analysis of conical-rotor permanent magnet synchronous motor

open access: yesCES Transactions on Electrical Machines and Systems, 2018
In order to accurately analyze the magnetic field of conical-rotor permanent magnet synchronous motor (CR-PMSM), the effectiveness of two methods was studied on handling of problems concerned with non-uniform distribution of magnetic field along axial ...
Jiabao Wang   +3 more
doaj   +1 more source

Group Acceptance Sampling Plan for Lifetime Data Using Generalized Pareto Distribution [PDF]

open access: yesPakistan Journal of Commerce and Social Sciences, 2010
In this paper, a group acceptance sampling plan (GASP) is introduced for the situations when lifetime of the items follows the generalized Pareto distribution. The design parameters such as minimum group size and acceptance number are determined when the
Muhammad Aslam   +2 more
doaj  

Analysis and Performance Evaluation of a Novel Adjustable Speed Drive with a Homopolar-Type Rotor

open access: yesMathematics, 2022
The use of a magnetic adjustable speed drive is a popular choice in industrial settings due to its efficient operation, vibration isolation, low maintenance, and overload protection. Most conventional magnetic adjustable speed drives use various forms of
Songlin Guo   +6 more
doaj   +1 more source

Validation and Investigation of the Operating Characteristics of the Ulcerative Colitis Endoscopic Index of Severity.

open access: yesInflammatory Bowel Diseases, 2018
BACKGROUND The Ulcerative Colitis Endoscopic Index of Severity (UCEIS) is a novel instrument to evaluate endoscopic disease activity. It has been demonstrated to outperform the more widely used Mayo endoscopic score (MES) in predicting long-term ...
D. D. de Jong   +11 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy