Results 91 to 100 of about 1,306,417 (313)

Highly integrated digital electronic control: Digital flight control, aircraft model identification, and adaptive engine control [PDF]

The highly integrated digital electronic control (HIDEC) program at NASA Ames Research Center, Dryden Flight Research Facility is a multiphase flight research program to quantify the benefits of promising integrated control systems.
Baer-Riedhart, Jennifer L., Landy, Robert J.   +1 more
core   +1 more source

Predicting the Remaining Useful Life of an Aircraft Engine Using a Stacked Sparse Autoencoder with Multilayer Self-Learning

Complex, 2018
Because they are key components of aircraft, improving the safety, reliability and economy of engines is crucial. To ensure flight safety and reduce the cost of maintenance during aircraft engine operation, a prognostics and health management system that
Jian Ma, Hua Su, Wan-lin Zhao, Bin Liu
semanticscholar   +1 more source

A Prospection‐Led Archaeological Investigation of a Picenian and Roman Necropolis in Corinaldo (Marche, Italy)

Archaeological Prospection, EarlyView.
ABSTRACT This paper presents the results of an integrated archaeological and geophysical investigation conducted between 2018 and 2024 at the newly discovered Picenian and Roman necropolis of Contrada Nevola (Corinaldo, Marche, Central Italy), identified in the framework of development‐led archaeology. The research strategy combined aerial photography,
Federica Boschi
wiley   +1 more source

Prediction of Blaine Fineness of Final Product in Cement Production Using Industrial Quality Control Data Based on Chemical and Granulometric Inputs Using Machine Learning

Applied Sciences
The cement industry is central to sustainable manufacturing due to its high energy demand and associated CO2 emissions. In cement production, a substantial share of electrical energy is consumed in the clinker grinding circuit, where Blaine fineness ...
Mustafa Taha Topaloğlu, Cevher Kürşat Macit, Ukbe Usame Uçar, Burak Tanyeri   +3 more
doaj   +1 more source

Engine-induced structural-borne noise in a general aviation aircraft [PDF]

Structural borne interior noise in a single engine general aviation aircraft was studied to determine the importance of engine induced structural borne noise and to determine the necessary modeling requirements for the prediction of structural borne ...
Pomerening, D. J., Scheidt, D. C., Unruh, J. F.   +2 more
core   +1 more source

Mode-specific, semi-volatile chemical composition of particulate matter emissions from a commercial gas turbine aircraft engine

, 2019
We measured and characterized semi-volatile chemical composition of particulate matter (PM) in aircraft engine exhaust plumes in a dedicated aircraft PM emission study (NASA's AAFEX 1 field measurement campaign).
Zhen-Dong Yu, M. Timko, S. Herndon, R. Miake-Lye, A. Beyersdorf, L. Ziemba, E. Winstead, B. Anderson   +7 more
semanticscholar   +1 more source

Simulating competition in the US bioeconomy to produce hard‐to‐electrify transportation fuels using limited biomass resources

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract This study presents a novel bioeconomy optimization framework, BiOpt, designed to address critical questions regarding the strategic use of limited US biomass resources for biofuel production. By integrating detailed techno‐economic analyses, life cycle assessments, and resource assessment data, BiOpt optimizes resource distributions across ...
Nicholas A. Carlson, Emily K. Newes, Kristen Lu, Eric C. D. Tan   +3 more
wiley   +1 more source

A Taxonomy of Predictive Maintenance as a Basis for Supra‐Regional Sustainability Monitoring—Literature Review

Business Strategy and the Environment, EarlyView.
ABSTRACT The concept of predictive maintenance in advanced manufacturing systems is crucial from the point of view of resource efficiency in the era of high competitiveness forced by energy transformation in the digital economy. Against the backdrop of sustainability and the opportunities a data cooperative offers, the combination of predictive ...
Christian Schachtner, Nadine Baumann, Marek Jabłoński, Adam Jabłoński, Mariusz Bednarek, Sławomir Luściński, Piotr Bilski   +6 more
wiley   +1 more source

Intrinsically Ultrahigh‐Rate Charging Capability of Conversion Reaction Cathodes and Its Origin: A Mechanism Study on FeS2

Carbon Energy, EarlyView.
Origin of the ultrahigh‐rate charge capability of FeS2: FeS2 demonstrates exceptional high‐rate charging capability, delivering 92% capacity retention at 10 C and maintaining as much as 60% capacity retention even at 30 C. This originates from an ultrahigh apparent diffusion coefficient involving both Li+ and Fe2+.
Zhen Yu, Junxiong Chen, Zongwang Tian, Ji Li, Yicheng Wang, Lifu Shen, Jianwei Meng, Kaiyu Zhang, Jingyi Xie, Nian Zhang, Xuefei Feng, Tsu‐Chien Weng, Xiaosong Liu, Pengfei Yu   +13 more
wiley   +1 more source

Real-time in-flight thrust calculation on a digital electronic engine control-equipped F100 engine in an F-15 airplane [PDF]

Computer algorithms which calculate in-flight engine and aircraft performance real-time are discussed. The first step was completed with the implementation of a real-time thrust calculation program on a digital electronic engine control (DEEC) equiped ...
Myers, L. P., Ray, R. J.
core   +1 more source