Results 131 to 140 of about 209,084 (316)
Computer simulation of engine systems [PDF]
The use of computerized simulations of the steady state and transient performance of jet engines throughout the flight regime is discussed. In addition, installation effects on thrust and specific fuel consumption is accounted for as well as engine ...
Fishbach, L. H.
core +1 more source
Dual cycle aircraft turbine engine [PDF]
, 1977 A method and apparatus are presented for improving operating efficiency over broad ranges of flight conditions and for reducing jet engine noise output in takeoff and landing by controlling the airflow entering and exiting the engines.
Nichols, M. R.
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Responsive Materials, EarlyView.We systematically summarize how each scale dictates fundamental choices in design feature, manufacturing technology, driving mechanism, and control strategy, which are inherently governed by scale‐dominated physical principles. Furthermore, the application of scale‐determined operation modes of microrobots across different stages of medical ...
Hang Yin +3 more
wiley +1 more source
New opportunities for future, small, General-Aviation Turbine Engines (GATE) [PDF]
, 1980 The results of four independent contracted studies to explore the opportunities for future small turbine engines are summarized in a composite overview.
Strack, W. C.
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Sliding Doors: Frame Uptake and Rejection by Learners in a Museum‐Based Climate Learning Experience
Science Education, EarlyView.ABSTRACT Science education efforts that support public understanding of modern climate change are critically needed. However, implementing climate‐related learning experiences can be challenging, as public audiences tend to experience a wide range of understandings of and emotions around the issue. In light of these challenges, many scholars have posed
Lynne Zummo +7 more
wiley +1 more source
Sustainable Development, EarlyView.ABSTRACT The promotion of clean energy is critical to achieving sustainable development. This study investigates the factors that affect the exports, trade potential, and revealed comparative advantage (RCA) of clean energy products (CEPs) in the emerging Asian economies (EAEs).
Arvind Goswami +2 more
wiley +1 more source
The Navy/NASA Engine Program (NNEP89): A user's manual [PDF]
An engine simulation computer code called NNEP89 was written to perform 1-D steady state thermodynamic analysis of turbine engine cycles. By using a very flexible method of input, a set of standard components are connected at execution time to simulate ...
Plencner, Robert M. +1 more
core +1 more source
Sustainable Development, EarlyView.ABSTRACT Wind energy plays an important role in achieving energy transition and sustainable development goals, yet disparities between socio‐political and community acceptance continue to hinder project implementation. Understanding this gap is essential for designing more socially responsive wind energy policies.
Kaiqi Liu +5 more
wiley +1 more source
Variable Cycle Engine Technology Program Planning and Definition Study [PDF]
The variable stream control engine, VSCE-502B, was selected as the base engine, with the inverted flow engine concept selected as a backup. Critical component technologies were identified, and technology programs were formulated.
Stern, A. M., Westmoreland, J. S.
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Sustainable Development, EarlyView.ABSTRACT This study investigates how green and non‐green goods, energy transition, digitalization, economic growth, and population affect the material footprint of G‐7 countries from 1990 to 2023. Using an extended STIRPAT framework, we show that green and non‐green goods increase material footprint, demonstrating the resource intensity associated with
Sohidul Islam +5 more
wiley +1 more source