Results 31 to 40 of about 194,348 (239)

Effect of Pressure on the Superconducting Properties of Tl2Ba2Ca2Cu3O9-δ

Crystals, 2018
This study investigated the application of pressure on the superconducting properties of a thallium-based cuprate, namely Tl2Ba2Ca2Cu3O9-δ (Tl-2223). The superconducting transition temperature (Tc) and the critical current density (Jc) were studied
Anota O. Ijaduola, Rai Shipra, Athena S. Sefat   +2 more
doaj   +1 more source

High pressure study of BaFe2As2 - role of hydrostaticity and uniaxial stress

, 2009
We investigate the evolution of the electrical resistivity of BaFe2As2 single crystals with pressure. The samples used were from the same batch grown from self flux and showed properties that were highly reproducible. Samples were pressurised using three
Alireza P L, C Harrison, F M Grosche, Jiang S, Kofu M, Mani A, O P Welzel, P G Niklowitz, Park T, Pfisterer M, W J Duncan, X F Wang, X H Chen   +12 more
core   +1 more source

Influence of intake parameters on combustion and emission performance of dual-fuel Marine diesel engines [PDF]

E3S Web of Conferences, 2019
We in order to study the influence of intake parameters on the combustion and emission of natural gas-diesel dual-fuel Marine engine, AVL_FIRE simulation software was used to build a high pressure cycle model of combustion chamber based on 4190ZLC-2 ...
Dend Tao, Huang Jialiang, Hu Deng, Fan Jinyu, Ye Zixiao   +4 more
doaj   +1 more source

Physical properties of interstellar filaments

, 2012
We analyze the physical parameters of interstellar filaments that we describe by an idealized model of isothermal self-gravitating infinite cylinder in pressure equilibrium with the ambient medium.
André, Arzoumanian, Benson, Bohlin, Bonnor, Bontemps, Boulares, Curry, Curry, Di Francesco, Dobashi, Ebert, Enoch, Fiege, Fischera, Fischera, Fitzpatrick, Foster, Gaida, Glover, Goldsmith, Hanawa, Harvey, Heyer, Hill, Inutsuka, Inutsuka, J. Fischera, Johnstone, Kalberla, Kandori, Kramer, Könyves, Martin, Martin, McCrea, McKee, Men’shchikov, Miville-Deschênes, Myers, Nagasawa, Onishi, Ostriker, P. G. Martin, Pineda, Roy, Schneider, Schneider, Stodólkiewicz   +48 more
core   +1 more source

Simulation of The Effects of Valve Timing Misalignment on Performance in Spark Ignition Engines

Engineering Perspective
Engine performance can be improved by changing the valve opening (or closing) timing without any cam profile changes. In this study, a simple simulation model was created for valve timing misalignment, which is an assembly defect in the engine.
Emre Arabacı, Şule Öztürk, Serdar Halis   +2 more
doaj   +1 more source

Heat release analysis and thermal efficiency of a single cylinder diesel dual fuel engine with gasoline port injection

Case Studies in Thermal Engineering, 2018
Cleaner diesel engines have been successively developed to meet a compromised solution for issues concerning performance and emission regulation. Combustion and exhaust gas after-treatment technologies are exhaustively settled to resolve those problems ...
Chondanai Vipavanich, Sathaporn Chuepeng, Sompol Skullong   +2 more
doaj   +1 more source

Experimental study of noise emitted by circular cylinders with large roughness

, 2014
The aerodynamic noise generated by high Reynolds number flow around a bluff body with large surface roughness was investigated. This is a relevant problem in many applications, in particular aircraft landing gear noise.
Alomar, Antoni, Angland, David, Molin, Nicolas, Zhang, Xin   +3 more
core   +1 more source

Diesel-natural gas dual fuel injection strategy effects on engine ignition delay and cylinder pressure evolution

Case Studies in Thermal Engineering
Diesel pilot high-pressure direct injection (HPDI) natural gas technology has been noticed and applied in medium and heavy-duty engines due to its outstanding economy and power performance.
Wei Wang, Chenglong Tang, Zuohua Huang
doaj   +1 more source

Drag and lift forces when moving in a cohesive granular medium [PDF]

EPJ Web of Conferences
When a cylinder moves horizontally in a dry granular medium, it experiences both a drag force and a significant lift force, despite the symmetry of the geometry. The lift force arises due to the unique frictional nature of granular material rheology. The
Dumont Denis, Duhayon Louis, Pouliquen Olivier   +2 more
doaj   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source