Results 121 to 130 of about 23,442 (304)

Nocturnal Intraocular Pressure Monitoring With a Soft Contact Lens Sensor for Glaucoma Management

open access: yesAdvanced Materials, EarlyView.
A soft contact lens sensor enables continuous, noninvasive monitoring of nocturnal intraocular pressure (IOP) under closed‐eye sleep conditions. By integrating a highly compliant inductive–capacitive circuit onto a commercial lens, the device achieves record sensitivity and stable performance.
Yumin Dai   +19 more
wiley   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

open access: yesAdvanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan   +6 more
wiley   +1 more source

Effects of Natural Gas Compositions on CNG Fast Filling Process for Buffer Storage System

open access: yesOil & Gas Science and Technology, 2013
The accurate modeling of the fast-fill process occurring in Compressed Natural Gas (CNG) fuelled vehicle storage cylinders is a complex process and should be thoroughly studied.
Farzaneh-Gord M.   +2 more
doaj   +1 more source

Biodegradable Chitosan Films as Green Resists for Gold Nanowires Fabrication Through AFM‐Based Nanolithography

open access: yesAdvanced Materials Interfaces, EarlyView.
Schematic illustration of a sustainable nanofabrication process: chitosan derived from natural sources is used as a biodegradable thin film resist, patterned via Constant Pulse‐Assisted Force Lithography (CP‐AFL) to create tunable nanogrooves. These grooves template gold nanowire formation, enabling high‐resolution nanopatterning under ambient ...
Paolo Pellegrino   +7 more
wiley   +1 more source

Development of the on-demand fuel injection system for a light truck using the hydrogen enriched compressed natural gas (HCNG) fuel

open access: yesKKU Engineering Journal, 2014
The use of hydrogen as a fuel by mixing with a commercial fuel has recently been investigated continuously in order to solve the energy crisis and global warming.
Sarawoot Watechagit   +5 more
doaj  

Compressed Natural Gas and How It Works [PDF]

open access: yes
Join us for a discussion about compressed natural gas (CNG) and how it works. Attendees will learn safety measures, where CNG works and where it doesn’t, cost and operation comparisons, fuel efficiency, infrastructure, emissions, and garage ...
lisek, ryan
core  

On the Friction and Wear Mechanisms of Electrified Steel Contacts in CO2: Unveiling the Role of Carbon‐Rich Tribofilms Under Dry Sliding Conditions

open access: yesAdvanced Materials Interfaces, EarlyView.
This study investigates friction and wear of AISI 52100 steel under dry sliding in CO2, air, and N2 atmospheres, with and without contact electrification. CO2 forms a stable carbon‐rich tribofilm that reduces friction by ∼30% and wear by ∼85%. High‐resolution TEM, EELS, and molecular dynamics reveal pressure‐dependent lubrication mechanisms, showing ...
Julio A. Cao‐Romero‐Gallegos   +6 more
wiley   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

open access: yesAdvanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz   +5 more
wiley   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

WAYS OF INCREASING AIR-FUEL MIXTURE IGNITION RELIABILITY OF GAS ENGINES FROM ELECTRIC DISCHARGE [PDF]

open access: yesAvtomobilʹnyj Transport (Harʹkov), 2010
The results of the rated estimation of the air-fuel mixture ignition energy of gas engines has been shown. The research of influence of hydrogen additions in different proportion on fuel-air mixture ig-nition process in the gas engine has been carried ...
F. Abramchuk   +3 more
doaj  

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