Results 121 to 130 of about 719,690 (317)

Improved thermal control of the accelerometer unit for the NGGM mission

openLa missione NGGM ha l’obiettivo di misurare le armoniche gravitazionali terrestri con grande accuratezza e risoluzione. Per adempiere a tale scopo, è necessario utilizzare un accelerometro con prestazioni spinte in ambiente estremamente stabile ...
MACCHION, SARA
core  

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Thermal stress analysis of fuel element in particle bed reactor [PDF]

, 2013
In this paper, a method of determination of temperature and thermal stress distributions in a fuel element of a new gas-cooled, thermal spectrum particle bed reactor (GCT-PBR) was derived.
Han, Lu
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Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Study of a local thermal control unit for satellite components and extraterrestrial habitat modules

reservedL’approccio architetturale tradizionale per i satelliti, sia tradizionali (commissionati e gestiti da ESA) che commerciali, prevede un sistema di controllo termico, così come di gestione di tutti gli altri sottosistemi di bordo, centralizzato e ...
VISCONI, DELIA
core  

Laser Powder Bed Fusion of Alumina: Effects of Scanning Strategies on External and Internal Defects

Advanced Engineering Materials, EarlyView.
This study investigates how scanning strategies affect pure alumina in laser powder bed fusion. Linear 45° scanning yields uniform surfaces but high porosity, while the island‐concentric strategy provides higher density with through‐holes favorable for infiltration. Findings highlight pathways toward optimizing defect‐free alumina parts.
Mohamed Abdelmoula, Gökhan Küçüktürk, Duran Kaya, David Grossin, Christophe Tenailleau, Benjamin Duployer, Enrique Juste, Fabrice Petit   +7 more
wiley   +1 more source

Development of low cost thermal insulating materials

, 2005
Includes bibliographical references.The disadvantaged people in South Africa are unfortunate by virtue of their financial status. It was estimated in 1992 that 20 % of the South African population live in informal settlements.
Meletse, Thabo Frans
core  

Pid Controller for Thermal Control in Satellites

International Journal of Recent Technology and Engineering, 2019
The paper gives the application of PID controller in satellite launching; it gives out the different technique which involves PID controller. It involves the temperature control (thermistor) in heater which is situated in the satellite. PID controller is implemented with the use of programmable logic controller. Using Ordinary control techniques, it is
openaire   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

Research on Modeling and Variable Operating Condition Characteristics of Entrained Flow Coal Gasifier Based on Aspen Plus

发电技术
ObjectivesThis research aims to investigate the operational mechanism of a coal gasifier within an integrated gasification combined cycle (IGCC) power plant, with a focus on analyzing and optimizing key operational parameters.MethodsA steady-state ...
WANG Yinan, LÜ Jiayang, CHEN Heng, ZHANG Guoqiang, XU Gang, ZHAI Rongrong   +5 more
doaj   +1 more source