Results 71 to 80 of about 54,589 (315)

Home-made Detection Device for a Mixture of Ethanol and Acetone

open access: yesSensors, 2007
A device for the detection and determination of ethanol and acetone wasconstructed, consisting of a packed column, a chamber with a sensor head, 2 dc powersupplies, a multimeter and a computer.
Sukon Phanichphant   +3 more
doaj   +1 more source

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz   +3 more
wiley   +1 more source

Method for Optimization of Hopped-Up Diesel Operation Process when Calculating Heat-Stressed Piston Condition

open access: yesМеханика машин, механизмов и материалов, 2009
The paper presents the method for optimizing the spatial arrangement of injector nozzles of hopped-up diesel internal-combustion engine that enables sharp estimation of boundary conditions at piston head.
A.T. Volochko   +3 more
doaj  

Small rocket engine Patent [PDF]

open access: yes, 1967
Regenerative cooling system for small rocket engine having restart capability and using noncryogenic hypergolic ...
Latto, W. T., Jr.
core   +1 more source

In Situ Study of Resistive Switching in a Nitride‐Based Memristive Device

open access: yesAdvanced Functional Materials, EarlyView.
In situ TEM biasing experiment demonstrates the volatile I‐V characteristic of MIM lamella device. In situ STEM‐EELS Ti L2/L3 ratio maps provide direct evidence of the oxygen vacancies migrations under positive/negative electrical bias, which is critical for revealing the RS mechanism for the MIM lamella device.
Di Zhang   +19 more
wiley   +1 more source

Development of a universal dual-bolus injection scheme for the quantitative assessment of myocardial perfusion cardiovascular magnetic resonance

open access: yesJournal of Cardiovascular Magnetic Resonance, 2011
Background The dual-bolus protocol enables accurate quantification of myocardial blood flow (MBF) by first-pass perfusion cardiovascular magnetic resonance (CMR).
Alfakih Khaled   +12 more
doaj   +1 more source

Rocket engine injectorhead with flashback barrier [PDF]

open access: yes, 2012
Propellants flow through specialized mechanical hardware that is designed for effective and safe ignition and sustained combustion of the propellants. By integrating a micro-fluidic porous media element between a propellant feed source and the combustion
Fisher, David J.   +2 more
core   +1 more source

Characterisation of Flame Development with Hydrous and Anhydrous Ethanol Fuels in a Spark-Ignition Engine with Direct Injection and Port Injection Systems [PDF]

open access: yes, 2014
This paper presents a study of the combustion mechanism of hydrous and anhydrous ethanol in comparison to iso-octane and gasoline fuels in a single-cylinder spark-ignition research engine operated at 1000 rpm with 0.5 bar intake plenum pressure.
Aleiferis, PG, Augoye, AK
core   +1 more source

Programmable DNA‐Peptide Hybrid Nanostructures for Potent Neutralization of Multiple Influenza a Virus Subtypes

open access: yesAdvanced Functional Materials, EarlyView.
A multivalent antiviral platform based on honeycomb‐shaped DNA nanostructures (HC–Urumin) is developed to enhance the potency and breadth of the host defense peptide Urumin. Through spatially patterned trimeric presentation, HC–Urumin disrupts influenza A virus entry, improves cell viability, and reduces disease severity in vivo‐offering a modular and ...
Saurabh Umrao   +11 more
wiley   +1 more source

Buckling Load of Bending Coiled Tubing below the Injector Head

open access: yesShiyou jixie, 2018
In the application of coiled tubing in high-pressure oil and gas wells, the buckling load of the coiled tubing between the injector head and the stripper is an important parameter to determine the construction safety.
Zhu Zhaoliang   +4 more
doaj  

Home - About - Disclaimer - Privacy