Results 91 to 100 of about 174,121 (317)

Effect of ultrasonic vibration-assisted milling on surface quality of carbon fiber reinforced polymer

open access: yesJournal of Materials Research and Technology
This paper studies the effect and mechanisms of ultrasonic vibration-assisted machining on the surface quality of carbon fiber reinforced polymer (CFRP), based on the kinematic characteristics of ultrasonic vibration-assisted milling.
Yukun Zhang, Junxue Ren, Jinhua Zhou
doaj   +1 more source

Prediction of jet engine parameters for control design using genetic programming

open access: yes, 2014
The simulation of a jet engine behavior is widely used in many different aspects of the engine development and maintenance. Achieving high quality jet engine control systems requires the iterative use of these simulations to virtually test the ...
Giovanna Martinez Arellano   +5 more
core   +1 more source

Epigenetic heterogeneity and plasticity in therapy‐induced tumor states through single‐cell multi‐omics

open access: yesMolecular Oncology, EarlyView.
Single‐cell multi‐omics reveals epigenetic heterogeneity across therapy‐adaptive tumor states, including quiescent/dormant, drug‐tolerant persister, and EMT‐like phenotypes. By linking regulatory features with state‐associated biomarkers, these approaches inform biomarker‐guided therapeutic strategies for evolving tumors.
Hee Jung Kim   +3 more
wiley   +1 more source

Thermal Management Optimization of Air Transport Racks Based on a Hybrid Framework

open access: yesApplied Sciences
With the development of avionics systems towards high integration and high power density, the thermal management of electronic equipment in ATR chassis is facing severe challenges, and the extreme aviation environment further exacerbates the difficulty ...
Biao Xie   +7 more
doaj   +1 more source

Investigation of cylinder deactivation and variable valve actuation on gasoline engine performance [PDF]

open access: yes, 2014
Increasingly stringent regulations on gasoline engine fuel consumption and exhaust emissions require additional technology integration such as Cylinder Deactivation (CDA) and Variable valve actuation (VVA) to improve part load engine efficiency.
Chavithra Kuruppu   +5 more
core   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

open access: yesFEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn   +4 more
wiley   +1 more source

Research status and prospects of free-form surface modeling theory for CAD, CAE and CAM

open access: yesXibei Gongye Daxue Xuebao
Free-form surface modelling theory is the study of how to describe and construct free-form surfaces in the computer, and how to interactively display, modify and control them.
HAN Feiyan   +5 more
doaj   +1 more source

Effect of surface roughness on erosion wear of turboshaft engine compressor blades [PDF]

open access: yesMechanical Sciences
When a turboshaft engine operates in a sand-laden environment, it is prone to erosive wear, which leads to the continuous evolution of surface roughness on compressor blades and consequently alters particle impact behaviour.
D. Luo   +7 more
doaj   +1 more source

Transient response of turbocharged diesel engine for transient operation using air injection assist system

open access: yes, 2007
Great improvements have been made in engine performance and emission control due to recent intensive research on engine systems. Further improvements are still required and turbocharging is aiding further improvements in emissions, power and downsizing ...
Rao, H.V.   +3 more
core  

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

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