Results 21 to 30 of about 2,159,135 (269)

Comparison of maintenance scheme effects on power transformer reliability performance

open access: yesIngeniería e Investigación, 2015
Power transformer failures have a significant impact on electrical systems reliability, as they compromise the electricity delivery. Failures impact the operational cost of electric utilities as they endanger the accomplishment of power commitments ...
Ivan Camilo Duran Tovar   +3 more
doaj   +1 more source

Dynamic State Evaluation Method of Power Transformer Based on Mahalanobis–Taguchi System and Health Index

open access: yesEnergies, 2023
Health status assessment is the key link of transformer-condition-based maintenance. The health status assessment method of power transformers mostly adopts the method based on the health index, which has the problems of multiple parameters of each ...
Yunhe Luo   +6 more
doaj   +1 more source

Environmental and Health Risk Assessment Due to Potentially Toxic Elements in Soil near Former Antimony Mine in Western Serbia

open access: yesLand, 2023
Background: Anthropogenic activities have clearly affected the environment, with irreversible and destructive consequences. Mining activities have a significant negative impact, primarily on soil, and then on human health.
Snežana Belanović Simić   +5 more
doaj   +1 more source

The Proposal of a New Tool for Condition Assessment of Medium Voltage Power Cable Lines

open access: yesEnergies, 2021
A medium voltage (MV) cable network is a substantial component of the distribution network. Present management of this grid segment is mainly based on the failure rate analysis, i.e., a rise in the number and kind of faults on the actual line means that ...
Krzysztof Siodla   +2 more
doaj   +1 more source

The recent dynamics of the Romanian population health state within a European context [PDF]

open access: yesHuman Geographies: Journal of Studies and Research in Human Geography, 2007
This paper analyses the state of health of the Romanian population between 1990 and 2000. This was assessed through the use of an aggregate index obtained from well-established indicators of the state of health such as general mortality rate, specific ...
Liliana Dumitrache
doaj  

Natural durability of five amazonian species in two different decay environments [PDF]

open access: yesCiência Rural
: Understanding the natural durability of Amazonian wood species in different deterioration environments is essential to promote their sustainable use and extend their useful life in various applications.
Júlio Henrique Germano de Souza   +3 more
doaj   +1 more source

Age Estimation of Transmission Line Using Statistical Health Index and Failure Probability Curve-Fitting Method

open access: yesEnergies
The aging process of transmission lines has a direct impact on the reliability and safety of the power grid. Therefore, an accurate age estimation method is imperative for effective maintenance planning and infrastructure investment.
Cattareeya Suwanasri   +2 more
doaj   +1 more source

Communication and Language Profiles of Children Treated for Posterior Fossa Brain Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cognitive and language deficits are frequently reported sequelae of posterior fossa brain tumors (PFBT). Typically, delayed onset impedes prompt assessment and early intervention. This has devastating implications for quality of life.
Zara Sved   +4 more
wiley   +1 more source

The HIT Network for Children and Adolescents With CNS Tumors Facilitates Improvements of Diagnostic Assessments, Multimodal Treatments, Individual Counseling, and Research in Germany, Austria, and Switzerland

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The HIT network was established in 2000 to create a population‐based structure aiming to improve survival rates and reduce late effects for children with central nervous system (CNS) tumors by conducting comprehensive clinical trials.
Stefan Rutkowski   +59 more
wiley   +1 more source

Stressful Events Reported by Childhood Cancer Survivors and Community Controls From the St. Jude Lifetime (SJLIFE) Cohort: A Mixed Method Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Characterizing stressful events reported by childhood cancer survivors experienced throughout the lifespan may help improve trauma‐informed care relevant to the survivor experience. Methods Participants included 2552 survivors (54% female; 34 years of age) and 469 community controls (62% female; 33 years of age) from the St.
Megan E. Ware   +13 more
wiley   +1 more source

Home - About - Disclaimer - Privacy