Results 111 to 120 of about 135,349 (273)

Blade Count and Rotational Speed Sensitivity of Vertical‐Axis Turbines Under Guided Vehicle‐Generated Transient Wakes

Energy Science &Engineering, EarlyView.
Passing vehicles generate short‐duration wakes that can be redirected toward a vertical‐axis turbine. The interaction between wake structure, blade count, and rotational speed governs transient torque production. Low‐solidity configurations combined with tuned rotational speed enhance energy extraction under vehicle‐induced gusts.
Aydin Ulus, Stefan Ilie Moldovan
wiley   +1 more source

Segmented Gurney Flaps for Improved Wind Turbine Wake Recovery

Wind Energy
When wind passes through the rotor of a wind turbine, the velocity is decreased while turbulence is increased. The region of decreased wind speed behind the rotor is known as the wind turbine wake and is bounded by a complex structure of helical vortices.
Nirav Dangi, Koen Boorsma, Edwin Bot, Wim Bierbooms, Wei Yu   +4 more
doaj   +1 more source

Integrated Solar and Wind Energy Systems for Domestic Power Generation and CO2 Emissions Reduction

Energy Science &Engineering, EarlyView.
A well‐structured and sequentially methodical procedure for evaluating the Wind and Photovoltaic Hybrid Energy System‐based technical, environmental, and economic viability. This study investigates the integration of solar photovoltaic(PV) and wind energy systems for domestic electricity generation in the Gaza Strip.
Mohamed Elnaggar, Mai Abuhelwa, Wael A. Salah, Aamir Bashir Taas, Hala J. El‐Khozondar, Yasser F. Nassar, Ahmad Aboul Khail, Alfian Ma'arif, Mohammed J. K. Bashir, Abdurrahman A. Mattar   +9 more
wiley   +1 more source

Moisture-proof Control of Balanced Ventilation Systems with Rotary Wheel Heat Recovery in Single Family Detached Houses [PDF]

E3S Web of Conferences
Single family houses with balanced ventilation have become more airtight, heat recovery efficiency has increased, and rotary heat exchangers have become the most common.
Ruud Svein
doaj   +1 more source

DSP implementation of a variable speed drive using fuzzy logic based voltage injection method for wound-rotor induction machines [PDF]

, 2008
The speed control at large range for wound-rotor induction machines can be implemented by using different vector based methods from either or both the stator and the rotor side.
Akpinar, A.S., Öner, Yusuf., Kesler, Selami., Saygin, A.   +3 more
core  

Antibacterial Hydrogel Dressing With Ca2+‐Dependent Hyaluronidase Responsiveness for Accelerating Wound Healing via On‐Demand Release of AIE Photosensitizers

Exploration, EarlyView.
This study innovates a Ca2+‐responsive hydrogel dressing that releases AIE photosensitizers on‐demand. Low Ca2+ enhances bacterial hyaluronidase (HAase) activity, degrading hyaluronic acid dressing to trigger antibacterial ROS release, while high Ca2+ inhibits HAase, preventing overdosing.
Rongwei Cui, Hao Yang, Miaomiao Kang, Zhijun Zhang, Weilin Xu, Yang Jiang, Lizhou Xu, Xiao‐Yong Zhan, Luhan Zhang, Yunsheng Xu, Dong Wang, Ben Zhong Tang, Danyang Li   +12 more
wiley   +1 more source

Determination of Aflatoxins and Selected Heavy Metals in Rice Varieties Cultivated in Fogera, Amhara Region, Ethiopia

Food Chemistry International, EarlyView.
ABSTRACT Rice (Oryza sativa L.) is a vital staple crop for nearly half the world's population. This study investigates the levels of aflatoxins (AFB1, AFB2, AFG1, and AFG2) and selected heavy metals (Cd, Pb, and Cr) and essential elements (Mn, Fe, Mg, Cu, and Zn) in rice varieties cultivated in Fogera, Amhara Region, Ethiopia.
Melese Tilahun, Bisratewongel Tegegne, Nibret Mekonen, Agegnehu Alemu   +3 more
wiley   +1 more source

Triboelectric nanogenerators for vehicle intelligent cockpits

FlexMat, EarlyView.
Converting mechanical stimuli from drivers and vehicle motion into electrical signals, triboelectric nanogenerators provide promising interfaces toward passive, flexible, distributed and intelligent sensing for next‐generation automotive cockpits to support three core functional dimensions: driver state monitoring, vehicle state monitoring, and human ...
Haiqiu Tan, Shiquan Lü, Xiangwei Meng, Huiying Zhang, Wenxing Zhang, Dongxian Sun, Xiao Lu, Lei Wang, Haodong Zhang, William W. Yu   +9 more
wiley   +1 more source

Mineral profile of cocoa powder: Analytical approach in commercial samples

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Cocoa powder is widely used in the food industry and has high nutritional value due to its composition, including minerals. The main factors related to the presence of minerals in cocoa powder are soil, processing, and cultivation practices.
Mateus Barbosa Silva, Herick Macedo Santos, Joane Cristina Costa Pereira, Heliara Caires Sousa, Raildo Mota de Jesus, Danilo Junqueira Leão, Leandro Soares Santos, Sibelli Passini Barbosa Ferrão   +7 more
wiley   +1 more source

Analysis and Enhancement of HQT and ENTSO-E Synthetic Inertia Criteria Using the Unison U151 Wind Turbine

Energies
Synthetic inertia (SI) enables wind turbine generators (WTGs) to support frequency stability by releasing stored kinetic energy during disturbances. Existing grid-code requirements, such as those of Hydro-Québec TransÉnergie (HQT) and ENTSO-E/Nord Pool ...
Yong Cheol Kang, Kicheol Kang, Youngsun Lee, Kyu-Ho Kim   +3 more
doaj   +1 more source