Results 41 to 50 of about 604,960 (305)

COVID-19 and the value of safe transport in the United States

open access: yesScientific Reports, 2021
We investigate the connection between the choice of transportation mode used by commuters and the probability of COVID-19 transmission. This interplay might influence the choice of transportation means for years to come.
Kenneth B. Medlock   +2 more
doaj   +1 more source

Air Quality in the Danube macro-region: Towards a coordinated science-based approach in support of policy development [PDF]

open access: yes, 2016
A study on selected EU cities of the Danube macro-region concludes that energy production/industry, agriculture, residential heating and transportation are the main pollution sources.
BELIS CLAUDIO   +2 more
core   +1 more source

A Smart Magnetically Actuated Flip‐Disc Programmable Metasurface with Ultralow Power Consumption for Real‐Time Channel Control

open access: yesAdvanced Functional Materials, EarlyView.
The study proposes a 1‐bit programmable metasurface based on flip‐disc display, named flip‐disc metasurface (FD‐MTS). This new design enables ultralow energy consumption while maintaining coding patterns. It also exhibits high scalability and multifunctional flexibility.
Jiang Han Bao   +8 more
wiley   +1 more source

A Health Impact Assessment of Proposed Public Transit Service Cuts and Fare Increases in Boston, Massachusetts [PDF]

open access: yes, 2014
Transportation decisions have health consequences that are often not incorporated into policy-making processes. Health Impact Assessment (HIA) is a process that can be used to evaluate health effects of transportation policy.
Arcaya, Mariana C   +4 more
core   +4 more sources

Microplastics from Wearable Bioelectronic Devices: Sources, Risks, and Sustainable Solutions

open access: yesAdvanced Functional Materials, EarlyView.
Bioelectronic devices (e.g., e‐skins) heavily rely on polymers that at the end of their life cycle will generate microplastics. For research, a holistic approach to viewing the full impact of such devices cannot be overlooked. The potential for devices as sources for microplastics is raised, with mitigation strategies surrounding polysaccharide and ...
Conor S. Boland
wiley   +1 more source

Exploring the potential of ammonia and hydrogen as alternative fuels for transportation

open access: yesOpen Engineering
This study investigates the potential of hydrogen and ammonia, as alternatives for transportation fuels to tackle urgent issues concerning greenhouse gas emissions and air quality in the worldwide transportation sector.
Azim Rasuli Mohammad, Torii Shuichi
doaj   +1 more source

Course program: Transportation of passengers. Support and assistance to passengers with reduced mobility in transport

open access: yesJournal of Sustainable Development of Transport and Logistics, 2017
This course is developed to implement state policy on ensuring the accessibility of infrastructure and services for persons with disabilities and other people with reduced mobility.
Volodymyr Azin   +3 more
doaj   +1 more source

Machine Learning on the COVID-19 Pandemic, Human Mobility and Air Quality: A Review

open access: yesIEEE Access, 2021
The ongoing COVID-19 global pandemic is touching every facet of human lives (e.g., public health, education, economy, transportation, and the environment).
Md. Mokhlesur Rahman   +5 more
doaj   +1 more source

Medium Range Aircraft Fuel Policy in the Light of Available Software, and Knowledge in the Industry [PDF]

open access: yes, 1998
The rational use of fuel in aviation industry together with the improved operational safety level and productivity are common and permanent goal that all airlines in the world strive to achieve.
Sikora, I.
core  

Controlled Movement of Soft Actuators using Multi‐Responsive Microgel Arrays and Microcirculatory Systems

open access: yesAdvanced Functional Materials, EarlyView.
Microscale hydrogels (microgels) feature improved mass transport characteristics supportive of fast actuation and chemical tunability amenable to programmed stimuli response. A unique soft actuator architecture is realized by encapsulating microgels in soft microcirculatory systems which enable the convenient delivery of liquid stimuli for powering and
Nengjian Huang   +2 more
wiley   +1 more source

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