Results 141 to 150 of about 867,433 (284)

CRBRP steam-generator design evolution [PDF]

open access: yes, 1983
The overall design of the CRBRP Steam Generator is briefly discussed. Two areas of particular concern are highlighted and considerations leading to the final design are detailed.
Geiger, W. R.   +2 more
core  

Resource reallocation across successive systemic innovations: How Rolls‐Royce shaped the evolution of the turbojet, turboprop, and turbofan

open access: yesStrategic Management Journal, EarlyView.
Abstract Research Summary Despite the importance of resource reallocation in shaping a variety of strategic outcomes, strategy scholars have paid only limited attention to the processes by which firms reallocate their resources across successive systemic innovations.
Gino Cattani   +2 more
wiley   +1 more source

Mg2+ Ions as Interfacial Charge Bridges for Enhanced Photocatalytic Hydrogen Evolution in Poly(Heptazine Imide)

open access: yesSmall, EarlyView.
Mg2+ confined within poly(heptazine imide) acts as a heterogenized interfacial charge bridge capable to couple synergistically the semiconductor with Pt co‐catalysts, thus enhancing hydrogen evolution. Through water polarization and hydroxide stabilization, a dynamic Mg2+‐OHδ−‐Hδ+‐Pt motif facilitates proton transfer and overcomes interfacial electron ...
Gabriel A. A. Diab   +17 more
wiley   +1 more source

Tube Curve Generator

open access: yes, 1952
This artifact is a Tube Curve Generator Model 2. Milton L. Kuder of the National Bureau of Standards (NBS) developed the Electron Tube Curve Generator around 1950 to provide instantaneous visual display of electron tube characeristics.

core  

Role of 1D and 2D Materials in Achieving Transparent and Flexible Lithium‐Ion Batteries for Wearable Electronics

open access: yesSmall, EarlyView.
Hybrid 1D–2D architectures redefine material design strategies for TFLIBs by decoupling competing performance parameters. This approach accelerates the transition of TFLIBs from proof of concept to practical wearable technologies. ABSTRACT Transparent and flexible lithium‐ion batteries (TFLIBs), enabled by advanced nanomaterials and flexible ...
Raviraj Madesan, Anand Sreekantan Thampy
wiley   +1 more source

Film condensation heat transfer of low integral-fin tube. [PDF]

open access: yes, 1985
PhDFor condensation on horizontal low-finned tubes, the dependence of heat-transfer performance on fin spacing has been investigated experimentally for condensation of refrigerant 113 and ethylene glycol.
Masuda, Hiroshi
core  

Unbiased Tandem System for Simultaneous Methane and Glycerol Upgrading to Formic Acid Under Ambient Conditions

open access: yesSmall, EarlyView.
A bias‐free photovoltaic‐photoelectrochemical tandem system enables simultaneous methane and glycerol upgrading to formic acid under ambient conditions. The cathode generates hydrogen peroxide for methane oxidation, while the photoanode efficiently oxidizes glycerol.
Ho Kun Woo   +5 more
wiley   +1 more source

VELOCITY PROFILES IN THE BUNDLE OF STRAIGHT TUBE STEAM GENERATORS

open access: yes, 1986
This paper describes a simplified model to predict the fluid velocity in the external channels of the tube bundle of a vertical once-through steam generator.
Lorenzini E., Spiga M., Corticelli M. A.
core  

Progress in Explosion Mechanisms and Prevention Technologies for Direct Chill Casting Aluminum Melt Upon Water Contact: A Review

open access: yesSafety Science and Technology, EarlyView.
Molten aluminum–water explosion triggered by leakage remains the core unresolved safety hazard hindering safe production in aluminum direct chill casting. This review summarizes its explosion mechanism, key influencing factors, prevention technologies, existing gaps, and prospects of intelligent multi‐technology integrated explosion‐proof systems ...
Min Wang   +5 more
wiley   +1 more source

Membrane Gas Separation for CO2 Capture From Flue Gas: Materials, Modules, Processes, and Application Prospects for Coal‐Fired Power Plant Retrofitting

open access: yesSafety Science and Technology, EarlyView.
This review systematically covers the full CO₂ flue gas membrane separation chain, finding it cuts energy use by ∼30% versus amine methods, yet faces stability and cost hurdles for large‐scale application. ABSTRACT As global climate change becomes increasingly severe, carbon capture, utilization, and storage (CCUS) technologies have emerged as a ...
Liang Jinqiang   +8 more
wiley   +1 more source

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