Results 121 to 130 of about 3,707 (264)

Automated Lawn Maintenance: An Agronomic and Operational Review of Turf Health, Biodiversity, and Field Performance

Journal of Field Robotics, EarlyView.
ABSTRACT Grass mowing is one of the most resource‐consuming activities in green maintenance, whether in private areas such as home gardens or in public spaces like urban parks. In recent years, concerns related to climate change, human health, and sustainability have become increasingly prominent in green maintenance, leading manufacturers and industry
Andrea Palladini, Lorenzo Guerrini, Marco Fontanelli, Lucia Bortolini   +3 more
wiley   +1 more source

Development and Validation of a Compressible Reacting Gas-Dynamic Flow Solver for Supersonic Combustion

Dynamics
An approach based on the OpenFOAM library has been developed to solve a high-speed, multicomponent mixture of a reacting, compressible flow. This work presents comprehensive validation of the newly developed solver, called compressibleCentralReactingFoam,
Anvar Gilmanov, Ponnuthurai Gokulakrishnan, Michael S. Klassen   +2 more
doaj   +1 more source

City Diplomacy as a Green Strategy? International Sister City Partnerships and Urban Decarbonization

Sustainable Development, EarlyView.
ABSTRACT The establishment of international sister city partnerships (ISCPs) has expanded since the postwar era, developing from cultural exchanges into strategic diplomatic channels for sustainable development. While their socioeconomic benefits are well‐documented, their potential as instruments for global environmental governance and urban ...
Fubin Luo, Zimeng Kong, Xinyu Wang, Can Zhang, Yunzheng Zhang   +4 more
wiley   +1 more source

Tracking the Fuel Trajectory from Each Injector for Fuel–Air Mixing in Supersonic Flows

Energies
Fuel injection and mixing remain a critical challenge in the development of supersonic propulsion systems. The efficiency of both mixing and combustion significantly influences the overall performance of these systems, underscoring the importance of ...
Qiongyao Qin, Yanhan Yang, Yidong Liu, Mingze Yuan, Jianzhong Li   +4 more
doaj   +1 more source

Investigation of Vaporized Kerosene Injection and Combustion in a Supersonic Model Combustor

, 2006
Injection and combustion of vaporized kerosene was experimentally investigated in a Mach 2.5 model combustor at various fuel temperatures and injection pressures.
俞刚, Sung CJ, 张新宇, Fan, XJ (reprint author), Chinese Acad Sci, Inst Mech, 15 Zhongguancun Rd, Beijing 100080, Peoples R China., 李建国, 范学军   +5 more
core   +1 more source

Synergistic Design of a SiO2–CNT–Amorphous Carbon 3D Host for Stable SEI Formation and Long‐Term Cycling Stability of Lithium Metal Anodes

Small, EarlyView.
SiO2@AC‐CNT microspheres, produced by spray pyrolysis and carbonization, present a 3D host where SiO2 is uniformly embedded within the CNT‐amorphous carbon framework. The architecture balances electronic conductivity and lithiophilicity, guiding uniform, dendrite‐free lithium deposition.
Eunhye Kim, Jae Hun Choi, Dae Soo Jung, Yun Chan Kang   +3 more
wiley   +1 more source

Kerosene combustion in a supersonic flow

Journal of Physics: Conference Series, 2019
Abstract A new approach is proposed to the initiation of kerosene combustion in a supersonic airflow with the stagnation temperature below 2000 K, which consists of a pulsed-periodic gas-dynamic action on the flow. The experiments have shown that it is possible to implement a quasi-steady pulsed combustion mode by choosing the parameters
openaire   +1 more source

MOF‐Derived Bi2WO6/MXene Ternary Heterojunction as a Highly Efficient Piezocatalyst for Ultrasound‐Driven Hydrogen Evolution and Oxygen Evolution Reaction

Small, EarlyView.
A Bi‐MOF‐derived Bi‐rich Bi2WO6/Bi3.84W0.16O6.24 ternary heterojunction with Ti2C MXene is developed as a highly efficient piezocatalyst. Ultrasound‐driven charge separation via a dual‐phase oxide and conductive MXene electron highway achieves an H2 evolution rate of 1450.1 µmol g−1h−1 through an unconventional •OH‐mediated pathway, with concurrent ...
Atul Verma, Esakkinaveen Dhanaraman, Yen‐Pei Fu   +2 more
wiley   +1 more source

Supersonic combustion studies.

, 1962
An experimental study of supersonic combustion bas been performed using the McGill University pebble bed heated wind tunnel. Supersonic combustion was achieved in a stainless steel combustion tube and in a free jet issuing from the tube.
Valenti, Anthony. M.
core  

Porous Organic Polymers: From Molecular Design to Scalable Technologies

Small, EarlyView.
This review introduces porous organic polymers (POPs) for a wide range of applications, including energy storage, gas adsorption, catalysts, adsorbents, biomedical applications, sensors, and other exciting fields, and critically analyzes the synthesis and modification, and how structural topology influences the composites' architecture of POPs, along ...
Hossein Mashhadimoslem, Hadi Shayesteh, Simindokht Zarei‐Shokat, Rokhsareh Bakhtiari, Sheyda Abedi‐Banaei, Zahra Sheikhlouiharzand, Parnia Mohebimanesh, Seyed Mohammad Amin Ojagh, Bahareh Bakhtiari, Ali Maleki, Theo G. M. van de Ven, Sohrab Zendehboudi, Ali Elkamel   +12 more
wiley   +1 more source