Results 31 to 40 of about 17,319 (149)

Technology of Directional Drilling Accident Treatment by Reverse Wire Salvage in Underground Coal Mine

open access: yesMeikuang Anquan, 2020
The common types and treatment methods of drilling accidents in directional drilling construction are described, and the principle, auxiliary salvage drilling tools, process methods and key points of reverse wire salvage technology are emphatically ...
LI Shuaishuai, ZHAO Jianguo, LIU Fei, CHU Zhiwei
doaj   +1 more source

Principles and Implementation of a Novel Radial-Anti-Disturbance Bearingless Switched Reluctance Motor

open access: yesIEEE Access, 2021
In order to solve the problem that the vehicle flywheel battery is easy to be disturbed in the process of using, a novel radial-anti-disturbance bearingless switched reluctance motor (RADBSRM) is proposed and studied based on the double stator switched ...
Yunhong Zhou   +3 more
doaj   +1 more source

Partially relaxed cocoercive variational inequalities and auxiliary problem principle [PDF]

open access: yesInternational Journal of Stochastic Analysis, 2004
Let T : K → H be a mapping from a nonempty closed convex subset K of a finite‐dimensional Hilbert space H into H. Let f : K → ℝ be proper, convex, and lower semicontinuous on K and let h : K → ℝ be continuously Frećhet‐differentiable on K with h′ (gradient of h), α‐strongly monotone, and β‐Lipschitz continuous on K.
openaire   +1 more source

Least square algorithm based on bias compensated principle for parameter estimation of canonical state space model

open access: yesMeasurement + Control, 2022
Due to the existence of system noise and unknown state variables, it is difficult to realize unbiased estimation with minimum variance for the parameter estimation of canonical state space model. This paper presents a new least squares estimator based on
Longlong Liu   +5 more
doaj   +1 more source

Crude Oil Spot Price Forecasting Using Ivanov-Based LASSO Vector Autoregression

open access: yesComplexity, 2022
This paper proposes a forecasting methodology that investigates a set of different sparse structures for the vector autoregression (VAR) model using the Ivanov-based least absolute shrinkage and selection operator (LASSO) framework. The variant auxiliary
Yishan Ding   +3 more
doaj   +1 more source

Test and Improvement of a Fuze MEMS Setback Arming Device Based on the EDM Process

open access: yesMicromachines, 2022
This paper introduces the working principle of a MEMS safety and arming (S&A) device for a fuze that is installed perpendicular to the axis of the projectile.
Yu Qin   +3 more
doaj   +1 more source

Udwadia–Kalaba Equation for Constrained Mechanical Systems: Formulation and Applications

open access: yesChinese Journal of Mechanical Engineering, 2018
There are many achievements in the field of analytical mechanics, such as Lagrange Equation, Hamilton’s Principle, Kane’s Equation. Compared to Newton–Euler mechanics, analytical mechanics have a wider range of applications and the formulation procedures
Xiao-Min Zhao   +3 more
doaj   +1 more source

A priori bounds, existence, and uniqueness of smooth solutions to an anisotropic Lp Minkowski problem for log-concave measure

open access: yesAdvanced Nonlinear Studies, 2023
In the present article, we prove the existence and uniqueness of smooth solutions to an anisotropic Lp{L}_{p} Minkowski problem for the log-concave measure.
Chen Zhengmao
doaj   +1 more source

AUXILIARY PROBLEM PRINCIPLE EXTENDED TO MONOTONE VARIATIONAL INEQUALITIES

open access: yesTamkang Journal of Mathematics, 1996
In the present work, the use of the operator method of regularization in the sense of Tikhonov, which makes it possible to develop an iterative scheme via auxiliary problem principle, converging strongly towards the solution of multi- valued monotone variational inequality within the absence of strong monotonicity condition of ...
openaire   +3 more sources

PENYELESAIAN PEMBIAYAAN BERMASALAH PADA PEMBIAYAAN MURABAHAH DENGAN TANGGUNGRENTENG DI BTPN SYARI’AH KCP CIKAMPEK

open access: yesAl-Muamalat, 2019
Murabahah financing agreement conducted by the National Pension Savings Bank of sharia Cikampek auxiliary Branch Office is murabahah financing for the purchase of business capital of a group of rural women who want to expand their business.
Iis Dewi Kurnilawati, Siti Nur Fatoni
doaj   +1 more source

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