Results 51 to 60 of about 204,714 (304)

A new approach for bin packing problem using knowledge reuse and improved heuristic

open access: yesScientific Reports
The two-dimensional (2D) irregular packing problem is a combinatorial optimization problem with NP-complete characteristics, which is common in the production process of clothing, ships, and plate metals.
Jie Fang   +4 more
doaj   +1 more source

Design of quasi-resonant flyback secondary intrinsically safe power supply [PDF]

open access: yesArchives of Electrical Engineering, 2019
In order to improve the efficiency and ensure the security of power supply used in a mine, this paper mainly studies the quasi-resonant flyback secondary power supply and analyzes its operational principles based on the requirements of soft-switching ...
Shengnan Lu, Bin Wang
doaj   +1 more source

Storage tank maintenance strategy in oil storage

open access: yesYou-qi chuyun, 2023
As the most important static equipment in oil storage, atmospheric pressure storage tanks, in the long course of time under the influence of the environment, external forces, and the force of different mediums, are apt to meet the problems of partial ...
QU Jianjun, JI Ruijun
doaj   +1 more source

The efficacy and safety of intrinsic antitachycardia pacing

open access: yesJournal of Arrhythmia
Abstract Background The clinical outcomes of a novel antitachycardia pacing (ATP) algorithm—intrinsic ATP (iATP)—compared to conventional ATP (cATP) have yet to be fully elucidated. Methods This retrospective study ...
Koumei Onuki   +10 more
openaire   +3 more sources

Anthropomorphic Soft Robotics - from Torque Control to Variable Intrinsic Compliance

open access: yes, 2011
The paper gives an overview on the developments at the German Aerospace enter DLR towards anthropomorphic robots which not only try to approach the force and velocity performance of humans, but also have similar safety and robustness features based on a ...
Hirzinger, Gerd   +21 more
core   +1 more source

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

open access: yesFEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point   +7 more
wiley   +1 more source

Influence of parameters and optimization on flow heat transfer and particle deposition in twisted elliptical tubes

open access: yesCase Studies in Thermal Engineering
Twisted elliptical tubes (TETs) are promising for heat exchanger applications due to their enhanced heat transfer capability, but the deposition characteristics of particles within their structure remain unclear.
Wei Lin   +11 more
doaj   +1 more source

Design of an intelligent seperated style gas inspection system for coal mine

open access: yesGong-kuang zidonghua, 2016
In view of problems existed in traditional gas inspection system , a new type of intelligent seperated style gas inspection system for coal mine was designed.
CHEN Xiaolin, SUN Jinyu
doaj   +1 more source

Mass spectrometry based identification of AMP‐O‐Tris generated by Thermococcus onnurineus Cas10

open access: yesFEBS Open Bio, EarlyView.
Isolated Thermococcus onnurineus Cas10 generates the noncanonical ATP‐derived product AMP‐O‐Tris while in Tris‐containing buffer as identified via mass spectrometry, revealing relaxed nucleophile selectivity under isolated conditions. These findings suggest that multiprotein Csm complex assembly restricts Cas10 reactivity toward canonical cyclic ...
Su‐Jin Lee   +6 more
wiley   +1 more source

Exergy-based ecological performance analyses and multi-objective optimizations for an endoreversible three-reservoir chemical potential transformer

open access: yesCase Studies in Thermal Engineering
In this paper, exergy-based ecological-function (ECF) optimal performances for endoreversible three-reservoir chemical potential (CHP) transformer with linear and diffusive mass transfer (MT) laws are studied.
Shuangshuang Shi   +3 more
doaj   +1 more source

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