Results 51 to 60 of about 90,052 (317)

Green Innovation and Firm Efficiency: The Role of Institutional Quality in Italian High‐Tech Manufacturing Sectors

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The aim of this research is to verify whether institutional quality affects the relationship between green innovation and firm efficiency within the high‐tech manufacturing sectors. To estimate jointly the parameters of a stochastic frontier and the coefficients of a model explaining technical inefficiency, we employed the one‐step estimation ...
Mariarosaria Agostino   +2 more
wiley   +1 more source

Synthetic Aperture Interferometric Passive Radiometer Imaging to Locate Electromagnetic Leakage From Spacecraft Surface

open access: yesIET Circuits, Devices and Systems
The localization of electromagnetic radiation leakage through cabin gaps is a critical and challenging aspect of electromagnetic compatibility (EMC) design for spacecraft with complex electromagnetic environments.
Yuting Zhang   +3 more
doaj   +1 more source

Air dehumidification by membrane with cold water for manned spacecraft environmental control

open access: yesMATEC Web of Conferences, 2017
The traditional condensation dehumidification method requires additional gas-liquid separation and water recovery process in the manned spacecraft humidity control system, which would increase weight and complexity of systems.
Shang Yonghong   +6 more
doaj   +1 more source

Distributed State Estimation for Networked Spacecraft Thermal Experiments Over Sensor Networks With Randomly Varying Transmission Delays

open access: yesIEEE Access, 2018
This paper investigates the distributed state estimation problem for spacecraft thermal experiments over sensor networks. The state estimators are designed in a distributed fashion to estimate the surplus temperature of the target node in the spacecraft.
Chang Liu   +4 more
doaj   +1 more source

Large angle reorientation manoeuvre of spacecraft using robust backstepping control [PDF]

open access: yes, 2008
The nonlinear control design problem for large angle reorientation manoeuvre of spacecraft has a proper structure for the direct application of backstepping design as its dynamics and kinematics are naturally in a cascade form.
Kim, J.K., Radice, G, Ali, I
core  

Eigenstructure Assignment Based Controllers Applied to Flexible Spacecraft

open access: yes, 2011
The objective of this paper is to evaluate the behaviour of a controller designed using a parametric Eigenstructure Assignment method and to evaluate its suitability for use in flexible spacecraft.
Aranda Almansa, Joaquín   +3 more
core   +1 more source

Tailoring Se‐Mediated Co‐Co Dual‐Atom Sites for Oxygen and Iodide Electrocatalysis Toward High‐Efficiency and Ultradurable Zinc‐Air/Iodide Hybrid Batteries

open access: yesCarbon Energy, EarlyView.
A Se‐mediated Co dual‐atom catalyst replaces sluggish oxygen evolution with efficient iodide oxidation in zinc‐air/iodide hybrid batteries. Se‐induced d‐p orbital hybridization optimizes adsorption, enabling a low 0.365 V voltage gap and superior durability, fundamentally overcoming conventional kinetic bottlenecks.
Huaipeng Pang   +6 more
wiley   +1 more source

Review of the Development of Energy Technology Experiment for Space Station

open access: yesSpace: Science & Technology
Space energy technology constitutes a comprehensive technological system designed to meet the energy acquisition, storage, conversion, management, and transmission requirements for spacecraft’s long-term operation in space environments, serving as a ...
Zhao Yin   +8 more
doaj   +1 more source

Temperature‐Dependent Kinetics of Plasma‐Based CO2 Conversion: Interplay of Electron‐Driven and Thermal‐Driven Chemistry

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
The transformation of CO2 into chemical building blocks is essential for a net‐zero energy future. Plasma‐chemical processing offers promising potential to achieve this. Here, we explore a temperature‐dependent plasma‐chemical reaction mechanism, revealing a shift from electron‐driven to thermal‐driven CO2 conversion regimes.
Aswath Mohanan   +2 more
wiley   +1 more source

Nanostructured Optical Superabsorbers from Carbon Nanotube Forest for Heat Management Using Environmental Blackbody Radiation from the Visible to Mid‐Infrared

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Our computational model of the optical absorption from multiwalled carbon nanotubes suggests the optical absorption depends strongly on the in‐plane electrical conductivity, and weakly on the through‐plane conductivity. Such strong absorption enables solar‐to‐thermal conversion for heat scavenging in cold climates and radiative cooling in hot climates,
José V. Anguita   +8 more
wiley   +1 more source

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