Results 131 to 140 of about 14,718 (261)

A Comparative Study of Methanol and Methane Combustion in a Gas Turbine Combustor

Energies
To investigate the combustion and emission characteristics of a 20 MW gas turbine combustor following fuel replacement, this study employs numerical simulations to systematically compare the combustion performance of methanol and methane. The focus is on
Jiashuo Cui, Rongguo Yu, Huishe Wang, Yangen Wang, Jingze Tong   +4 more
doaj   +1 more source

Investigation of aerothermodynamics and optical radiation in the AFE hypersonic flow field [PDF]

Research for the radiation experiments on the Aeroassist Flight Experiment (AFE) was performed to obtain a data base for development of engineering requirements for aerobrakes.
Craig, Roger A., Davy, William C., Palumbo, Giusseppe   +2 more
core   +1 more source

Mechanisms of Laser Ablation in Liquids and Their Impact on the Efficiency of Nanoparticle Generation

Laser &Photonics Reviews, EarlyView.
Laser ablation in liquid enables nanoparticle synthesis from diverse materials but remains less energy‐efficient than ablation in air. This study quantifies the absorption‐corrected ablation efficiency and experimentally confirms redeposition as the key loss mechanism using pump‐probe microscopy.
Maximilian Spellauge, David Redka, Alexander Podhrazsky, Katharina Eckmann, Constanze Eulenkamp, Oliver Koepp, Carlos Doñate‐Buendia, Bilal Gökce, Stephan Barcikowski, Heinz Paul Huber   +9 more
wiley   +1 more source

Adaptive PCA-Based Normal Estimation for Automatic Drilling System of Large-Curvature Aerospace Components

Machines
AI-integrated robotics in Industry 5.0 demands advanced manufacturing systems capable of autonomously interpreting complex geometries and dynamically adjusting machining strategies in real time—particularly when dealing with aerospace components ...
Hailong Yang, Renzhi Gao, Baorui Du, Yu Bai, Yi Qi   +4 more
doaj   +1 more source

Probabilistic Risk Analysis and Margin Process for a Flexible Thermal Protection System [PDF]

Atmospheric entry vehicle thermal protection systems are margined due to the uncertainties that exist in entry aeroheating environments and the thermal response of the materials and structures.
Bowes, Angela L, Brune, Andrew J., Tobin, Steven A.   +2 more
core   +1 more source

Comparative Evaluation of R134a and HFO‐1234ze Cryogen Spray Cooling Using a Mouse Model With Controllable Epidermal Pigmentation

Lasers in Surgery and Medicine, EarlyView.
ABSTRACT Objectives Cryogen spray cooling (CSC) is critical for protecting the epidermis during laser dermatologic procedures. The widely used cryogen, R134a, has a high global warming potential (GWP), motivating interest in environmentally favorable alternatives such as HFO‐1234ze.
Wangcun Jia, Yurie Jeong, Crystal Huynh, Oswald Lai, Emily Nguyen, Grant Swajian, Jade Niu, Ayana Kashikar, Joshua Khaw, Hong Pu, Bernard Choi, John D'Orazio, J. Stuart Nelson, Bahman Anvari   +13 more
wiley   +1 more source

Role of High Fidelity Vs. Low Fidelity Experimental Data in Machine Learning Model Performance for Predicting Polymer Solubility

Macromolecular Rapid Communications, EarlyView.
The performance of machine learning models for classifying polymer solubility improves when a high‐fidelity experimental dataset is used compared to a low‐fidelity experimental dataset. This has important implications for justifying the value of spending additional time and resources preparing detailed experimental datasets.
Mona Amrihesari, Manali Banerjee, Raul Olmedo, Blair Brettmann   +3 more
wiley   +1 more source

Low-velocity impact damage characteristics and structural optimization of metal and CFRP through-thickness reinforcement connection structures

Cailiao gongcheng
To improve the impact resistance of metal and composite material joint structures， a metal synapse structure was manufactured using metal laser selective melting technology.
ZHAO Kunpeng, ZHENG Huilong, KANG Zhenya, ZHANG Saile, DONG Haibin   +4 more
doaj   +1 more source

Challenges and Opportunities in Machine Learning for Light‐Emitting Polymers

Macromolecular Rapid Communications, EarlyView.
The performance of light‐emitting polymers emerges from coupled effects of chemical diversity, morphology, and exciton dynamics across multiple length scales. This Perspective reviews recent design strategies and experimental challenges, and discusses how machine learning can unify descriptors, data, and modeling approaches to efficiently navigate ...
Tian Tian, Yinyin Bao
wiley   +1 more source

Research Progress in the Application of Ultrasonic Technology in the Regeneration of Desiccants for Air-conditioning

Zhileng xuebao, 2012
This paper has had a review of the research progress in the regeneration of dessicants (solid and liquid) assisted by the ultrasonic technology. Particularly, the effect of ultrasonic on the enhancement of desiccant regeneration, the energy consumption ...
Yao Ye
doaj