Results 71 to 80 of about 186,008 (265)

Ion Source Complementarity for Characterization of Complex Organic Mixtures Using Fourier Transform Mass Spectrometry: A Review

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Complex organic mixtures are found in many areas of research, such as energy, environment, health, planetology, and cultural heritage, to name but a few. However, due to their complex chemical composition, which holds an extensive potential of information at the molecular level, their molecular characterization is challenging.
Charlotte Mase, Maxime Sueur, Hélène Lavanant, Christopher Paul Rüger, Pierre Giusti, Carlos Afonso   +5 more
wiley   +1 more source

4D printing and its key technologies

Cailiao gongcheng, 2019
4D printing can be defined as the evolution of 3D printing structure in terms of shape, performance and function. It has time dependence, printer independence and predictability, and its smart dynamic performance creates promising capabilities and broad ...
SHEN Zi-cai, XIA Yan, DING Yi-gang, ZHAO Chun-qing, YANG Yan-bin   +4 more
doaj   +1 more source

Two Types of q$$ q $$‐Gaussian Distributions Used to Study the Diffusion in a Finite Region

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this work, we explore both the ordinary q$$ q $$‐Gaussian distribution and a new one defined here, determining both their mean and variance, and we use them to construct solutions of the q$$ q $$‐deformed diffusion differential equation. This approach allows us to realize that the standard deviation of the distribution must be a function of
Won Sang Chung, L. M. Nieto, Soroush Zare, Hassan Hassanabadi   +3 more
wiley   +1 more source

Numerical Study of the Thermal Model on High Uniformity Temperature Test Platform

MATEC Web of Conferences, 2019
The surface temperature uniformity of a test platform with an effective test area of 600 mm × 600 mm was numerically studied. The conductive heat transfer model for the test platform and the device under test (DUT) installed on the surface was ...
Wang Zijuan, Zhou Ying, Xiao Han, Jingyi Shao   +3 more
doaj   +1 more source

Fluid Dynamics and Infrared Stealth of Marine IRS Devices: A Review

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Infrared suppression (IRS) devices for naval ships play a crucial role in reducing the infrared radiation signature of high‐temperature exhaust, thereby enhancing the survivability of ships against infrared‐guided weapons. This paper provides a comprehensive review of recent advancements in the design and optimization of IRS devices.
Yitao Zou, Zhenrong Liu, Xin Qiao, Yingying Jiang, Hong Shi, Yanlong Jiang   +5 more
wiley   +1 more source

Spacecraft Assembly Process Bill of Material Construction Technology For Single-Piece Production

MATEC Web of Conferences, 2017
For the spacecraft assembly Process Bill of Material (PBOM) traditional construction technology, the product assembly relationship, product assembly information are not visual for spacecraft assembly and integration department, leading to the manual PBOM
He Wen-xing, Chen Chang-yu, Liu Yu-gang
doaj   +1 more source

Unambiguous signal reconstruction for GEO-LEO bistatic SAR with azimuth multichannel

The Journal of Engineering, 2019
Spaceborne bistatic multichannel synthetic aperture radar (MC-SAR) system employed inclined geosynchronous Earth orbit (GEO) transmitter and low-Earth-orbit (LEO) receiver can provide fine spatial resolution and a vast area of surveillance, which ...
Yuekun Wang, Zheng Lu, Mingming Xu, Yu Zhu, Zhenfang Li   +4 more
doaj   +1 more source

Development of n‐type ZnAlInO Semiconductor Materials for Thermoelectric Generators in Aerospace Applications

ChemistryOpen, EarlyView.
Herein, the synthesis and production of n‐type ZnAlInO semiconductor materials is achieved utilizing sol–gel and cold pressing methods for fabrication in aerospace thermoelectric generators applications. The Seebeck coefficient and power factor values increase with the addition of template samples, reaching a maximum of −162.63 μV K−1 and 0.44 mW mK−2,
Enes Kilinc, Fatih Uysal, Mucahit Abdullah Sari, Huseyin Kurt, Erdal Celik   +4 more
wiley   +1 more source

Feasibility and performance evaluation of randomly oriented strand recycled composite skins in sandwich structures: A green cost‐effective solution for aerospace secondary load‐bearing applications

Polymer Composites, EarlyView.
Use of ROS TP skins in sandwich composite structures. Abstract Despite the advantages of recycled randomly oriented strand (ROS) composites over recycled grinded ones, the warpage issue hinders their adaptation in the industry due to tolerance requirements.
Yağız Özbek, Abdulrahman Al‐Nadhari, Sinem Elmas, Volkan Eskizeybek, Mehmet Yıldız, Hatice S. Sas   +5 more
wiley   +1 more source

The Impact of Lighting Conditions on Users' Alertness and Working Memory in Confined Spaces

PsyCh Journal, EarlyView.
ABSTRACT Confined spaces, characterized by limited natural ventilation, the absence of windows, and restricted access to natural light, present distinct challenges. While most studies focus on lighting's effect on sleep, confined spaces are now more often used for short‐term work‐rest cycles, especially in office settings.
Zaoyi Sun, Shenshen Xie, Shang Hu, Changhua Jiang, Shaowen Ding, Litao Wu, Weidan Xu, Hongting Li   +7 more
wiley   +1 more source