Results 81 to 90 of about 7,617 (237)

Investigating SME‐Inclusive Public‐Private AI Innovation Network: Evidence From U.S. Small Business Administration (1991–2023)

Thunderbird International Business Review, EarlyView.
ABSTRACT Understanding innovation policy is pivotal to enhancing national competitiveness for global value chain. This research investigates an SME‐Inclusive public‐private AI innovation network over time in the U.S. context (1991–2023), revealing how a government's demand‐based innovation policy bolsters technological prowess through isomorphism and ...
Jiyoon An
wiley   +1 more source

Do the public take action when a severe snow warning is issued?

Weather, EarlyView.
Extreme weather events pose significant risks to the population, making timely warnings essential for preparedness. The UK Met Office’s National Severe Weather Warning Service (NSWWS) has issued impact‐based alerts for over a decade, yet evaluations of their effectiveness remain limited.
Helen Dacre, Rachel McCloy, Joi Alon
wiley   +1 more source

Study on air quality improvement in train compartments by coordinated exhaust of multiple air outlets

Railway Engineering Science
Ventilation is one of the most effective ways to improve the air quality in trains. Top exhaust and bottom exhaust are two commonly used modes. The study hopes to switch the exhaust mode to adapt to the indoor requirements of different scenes without ...
Wu Songbo, Li Tian, Zhang Jiye
doaj   +1 more source

Modeling snow accumulation in the bogie region caused by train slipstream based on sliding mesh and particle capture criteria

Alexandria Engineering Journal
The accumulated snow swept by the high-speed train's slipstream tends to aggregate on the train's bogie, thereby posing a significant threat to operational safety. In this paper, utilizing the sliding mesh technique and a novel particle injection scheme,
Yuzhe Ma, Jiye Zhang, Jiawei Shi, Lan Zhang, Yao Zhang   +4 more
doaj   +1 more source

Ungulate substrate use in fauna passages

Wildlife Biology, EarlyView.
Fauna passages are increasingly constructed at major roads and railways to mitigate the negative effects of infrastructure and traffic on wildlife. The function of such passages depends on design, including the construction materials, soil, and vegetation.
Milla Niemi, Jan Olof Helldin
wiley   +1 more source

Fault Diagnosis Method for Rail Transit Train Axle Box Bearing Based on the Fusion of Vibration Acceleration and Acoustic Signal

Chengshi guidao jiaotong yanjiu
Objective Axle box bearing is a key component of rail transit train bogie, and its health state directly affects the train operation safety. Therefore, it is necessary to establish a more scientific and efficient fault diagnosis method for axle box ...
ZHENG Zejun, SONG Dongli, JIA Chen, MA Chao   +3 more
doaj   +1 more source

Rail-Wheel Friction Management in Rail System Vehicles

, 2021
In rail systems, which is one of the reliable transportation ways of our age, the first interaction between vehicle and infrastructure starts with rail and wheel contact. In cases where the friction that will arise from the rail-wheel contact is high, abrasions and noise will occur on the wheel and the rail outside the allowable limits.
openaire   +2 more sources

Exploring sources of uncertainty in the estimate of waterfowl harvest in the United Kingdom

Wildlife Biology, EarlyView.
There is an urgent need to gather data on harvest rates of waterbirds in Europe to assess the sustainability of hunting. Estimates of total waterbird harvest in the United Kingdom (UK) and the relative harvest of different huntable species come from two separate surveys, the Value of Shooting (PACEC 2014) and National Gamebag Census (NGC), and these ...
Matthew B. Ellis, Hannah M. Lewis, Tom C. Cameron   +2 more
wiley   +1 more source

Developing a low‐cost drone‐based method for deploying and retrieving autonomous recording units in inaccessible areas

Wildlife Society Bulletin, EarlyView.
Autonomous recording units (ARUs) are increasingly used for passive acoustic monitoring, but deploying them in remote or inaccessible locations remains challenging. We developed and field‐tested a lightweight, low‐cost floating platform for drone‐assisted deployment and retrieval of ARUs in wetland interiors.
Akshit R. Suthar, Jared A. Elmore, Erin K. Buchholtz, Travis H. Folk, Beau A. Bauer, Aaron R. Pierce, James T. Anderson   +6 more
wiley   +1 more source

Study of Resonance between Bogie Hunting and Carbody Mode via Field Measurements and Dynamic Simulation

Sensors
By addressing the phenomenon of carbody abnormal vibrations in the field, the acceleration of the carbody and bogie was measured using accelerometers, and the diamond mode of the carbody was identified.
Sheng Yang, Fansong Li, Pingbo Wu, Jijun Gong   +3 more
doaj   +1 more source