Results 11 to 20 of about 7,102,543 (272)

Design, Synthesis and Anticancer Activity of a New Series of N-aryl-N′-[4-(pyridin-2-ylmethoxy)benzyl]urea Derivatives

open access: yesMolecules, 2021
The development of cancer treatments requires continuous exploration and improvement, in which the discovery of new drugs for the treatment of cancer is still an important pathway.
Shicheng Hou   +9 more
doaj   +1 more source

Safety Analysis for the Civil Aircraft Emergency Door Based on Latent Failure and Multi-failure Mode Coupling

open access: yesHangkong gongcheng jinzhan, 2021
The emergency door on the wing of a civil aircraft has particularity,and its fault is somewhat concealed,so it is particularly important to analyze its safety reasonably.The evaluation and selection principles of the latent failure of the emergency door ...
ZHU Zhengzheng   +3 more
doaj   +1 more source

Multiple-Beam Steering Using Graphene-Based Coding Metasurfaces

open access: yesMicromachines, 2023
Recently, the coding metasurface has gained significant attention due to its exceptional potential in controlling electromagnetic (EM) waves with the rapid development of wireless communication systems.
Bin Zheng   +5 more
doaj   +1 more source

Electron Beam Welding Application on Titanium Alloy Bulkhead Frame

open access: yesHangkong gongcheng jinzhan, 2019
The titanium alloy bulkhead frame is one kind of the important components in the aircraft structure. It could be fabricated by using the new method of electron beam welding(EBW) for parts assembly.
Li Xiaolong   +3 more
doaj   +1 more source

A Reverse-Design Strategy for the Track Error of the Qi Tai Telescope Based on Pointing Accuracy

open access: yesEngineering, 2022
The Qi Tai Telescope (QTT), which has a 110 m aperture, is planned to be the largest scale steerable telescope in the world. Ideally, the telescope’s repeated pointing accuracy error should be less than 2.5 arc seconds (arcsec); thus, the telescope ...
Na Li   +4 more
doaj   +1 more source

The Driving Waveform Design Method of Power-Law Fluid Piezoelectric Printing Based on Iterative Learning Control

open access: yesSensors, 2022
In some applications of piezoelectric three-dimensional inkjet printing, the materials used are power-law fluids as they are shear thinning. Their time-varying viscosities affect the droplet formation, which is determined by the volume flow rate at the ...
Ju Peng   +5 more
doaj   +1 more source

Computer Aided Aroma Design. II. Quantitative structure-odour relationship [PDF]

open access: yes, 2008
Computer Aided Aroma Design (CAAD) is likely to become a hot issue as the REACH EC document targets many aroma compounds to require substitution. The two crucial steps in CAMD are the generation of candidate molecules and the estimation of properties ...
Floquet, Pascal   +5 more
core   +2 more sources

A Pavement Piezoelectric Energy Harvester for Small Input Displacements

open access: yesMicromachines, 2023
In order to collect mechanical energy from human motions on pavement without an obvious disturbance, a piezoelectric harvester for small displacement is proposed. A seesaw mechanism is utilized to transmit the pressure displacement to piezoelectric beams.
Bin Yin, Jiaming Wei, Xin Jiang, Yan Liu
doaj   +1 more source

Computational structure‐based drug design: Predicting target flexibility [PDF]

open access: yes, 2018
The role of molecular modeling in drug design has experienced a significant revamp in the last decade. The increase in computational resources and molecular models, along with software developments, is finally introducing a competitive advantage in early
Ding X.   +4 more
core   +2 more sources

Surrogate-Model-Based Interval Analysis of Spherical Conformal Array Antenna with Power Pattern Tolerance

open access: yesSensors, 2022
A method based on an interval arithmetic is proposed to analyze uncertain factors such as the curvature radii, excitation amplitude, and excitation phase of a spherical conformal array antenna.
Guangda Ding   +4 more
doaj   +1 more source

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