Results 61 to 70 of about 25,281,968 (246)
The assessment method of transformer oil-paper insulation state based on PSO-ELM
电力工程技术Oil-immersed power transformer is an important part of power grid, and its reliable operation plays a vital role in pomler system security. Aiming at the problem that the insulation state of transformer cannot be assessed quantitatively after long-term ...
ZHANG Dewen +5 more
doaj +1 more source
High Voltage, 2016 At present, the insulation performances of electrical apparatus under lightning impulse voltages are always evaluated by the withstand test of standard lightning impulse voltage (1.2/50 µs), which is recommended by IEC Standard.
Wenxia Sima +4 more
doaj +1 more source
, 2009 In this paper, space charge in a multi-layer oil-paper insulation system was investigated using the pulsed electroacoustic (PEA) technique. A series of measurements had been carried following subjection of the insulation system to different applied ...
Liao, R, Fu, M, Tang, Chao, Chen, George
core +1 more source
Business Strategy and the Environment, EarlyView.ABSTRACT Measuring sustainability performance is crucial for small and medium‐sized manufacturing enterprises and sustainability indicators must be incorporated into decision‐making. However, companies tend to measure only the aspects that interest them, disregarding those considered less strategic or relevant.
Alessandra Neri +3 more
wiley +1 more source
African Twist of Circular Economy: Insights, Policies and Recommendations
Business Strategy and the Environment, EarlyView.ABSTRACT While the circular economy (CE) has gained traction, this paper argues that mainstream CE approaches risk being misaligned in the African context. Drawing on a mixed‐methods synthesis of empirical studies, policy documents and cross‐country examples, the study shows that Africa's CE transition is fragmented and uneven, leaving the continent at
Michael Odei Erdiaw‐Kwasie +4 more
wiley +1 more source
International Journal of Electrochemical Science, 2015 The properties of materials such as corrosion, creep resistance, and weld ability are relevant to special and random grain boundaries which belongs to the category of Grain Boundary Engineering (GBE).
Yuan Yuan +4 more
doaj +1 more source
The Circular Economy—A New Resilience Paradigm?
Business Strategy and the Environment, EarlyView.ABSTRACT The circular economy (CE) has traditionally been positioned as a central instrument of the sustainability paradigm. Yet escalating geopolitical volatility and supply chain fragility have elevated resilience to a parallel strategic imperative, and the conceptual integration of CE and resilience remains underexplored.
Julian Kirchherr, Felix Carl Schultz
wiley +1 more source
Recovery voltage measurement on oil-paper insulation with simple geometry and controlled environment
, 2004 Using the recovery voltage of oil-paper insulation to diagnose its state of maintenance is very popular among electrical engineers. Many advantages of using recovery voltage includes non-intrusive, easy to operate, more resistant to noise compare to ...
Kuang, Y C, Jarman, P, Chen, G
core +1 more source
IEEE Access, 2019 Transformer insulation paper is a key indicator for transformer remaining operational life. Paper decomposition is evaluated using the degree of polymerization (DP) which calls for samples of insulation paper from operating transformers. Since collecting
Shijun Li +5 more
doaj +1 more source
From ESG to Biodiversity: Decoupling and Its Asymmetries as a Source of Biodiversity Risk
Business Strategy and the Environment, EarlyView.ABSTRACT While environmental, social and governance (ESG) research has extensively documented the risks stemming from disclosure and performance gaps, the growing demand for biodiversity reporting raises concerns that analogous inconsistencies may amplify corporations' exposure to biodiversity risk.
Etienne Develay, Nader S. Virk
wiley +1 more source