Results 21 to 30 of about 64,628 (273)

Characterization and Defect Analysis of Machined Regions in Al-SiC Metal Matrix Composites Using an Abrasive Water Jet Machining Process

open access: yesApplied Sciences, 2020
Metal matrix composite (MMC) materials are increasingly used in industrial sectors such as energy, structural, aerospace, and automotive. This is due to the improvement of properties by the addition of reinforcements.
Pedro F. Mayuet Ares   +3 more
doaj   +1 more source

Multi-terminal dc grid overall control with modular multilevel converters

open access: yesЗаписки Горного института, 2020
This paper presents a control philosophy for multiterminal DC grids, which are embedded in the main AC grid. DC transmission lines maintain higher power flow at longer distances compared with AC lines. The voltage losses are also much lower.
Miguel Jiménez Carrizosa   +4 more
doaj   +1 more source

Influence of Ceramic Particles Reinforcement on some Mechanical Properties of AA 6061 Aluminium Alloy [PDF]

open access: yesEngineering and Technology Journal, 2013
This paper is to investigate the influence of adding 5,10 and 15 weight percentage silicon carbide particles on some mechanical properties of 6061 Aluminium alloy. The composites Al6061/SiC were prepared by stir casting technique.
Jameel Habeeb Ghazi
doaj   +1 more source

Prevalence of Obesity among School Going Adolescents in Urban and Rural Areas of District Meerut, Uttar Pradesh, India [PDF]

open access: yesHealthline, 2020
Introduction : The present century had noticed a rapid transition from undernourished to overweight and obesity. This transition was initially reported in developed countries but now this phenomenon has been noticed in developing countries. Objective:
S. K. Raghav   +5 more
doaj  

A Feasible Topology of DC Collection Valve for Long-Distance Offshore Wind Farms and Cost-Effective Analysis

open access: yesZhongguo dianli, 2022
HVDC is a preferred technology for high-power and long-distance offshore wind farms, and the valve plays a pivotal role. Due to the high cost, large footprint and weight of valve, and high construction cost of offshore platform, an evolution is ...
Xiupu LIAO   +6 more
doaj   +1 more source

Aneurysmal Dermatofibroma: Uncommon Presentation of Common Disease

open access: yesNepal Journal of Dermatology, Venereology & Leprology
Aneurysmal dermatofibroma is an uncommon, benign variant of dermatofibroma due to the slow extravasation of blood. Clinically, it is difficult to differentiate from other vascular occurring lesions like verrucous hemangioma and malignancies like ...
Shraddha Patel   +3 more
doaj   +3 more sources

Hospitalized pregnant women with COVID 19: differing outcomes among symptomatic and asymptomatic patients [PDF]

open access: yesNew Indian Journal of OBGYN, 2022
Objectives: To compare course of the disease, changes in levels of inflammatory markers, management and outcome of pregnancy in terms of, hospital stay, ICU admission and specific treatment between symptomatic and asymptomatic COVID 19 positive pregnant ...
Shital T Mehta   +7 more
doaj   +1 more source

sj-docx-1-mmc-10.1177_20501579221080333 - Supplemental material for Selectively localized: Temporal and visual structure of smartphone screen activity across media environments

open access: yes, 2022
Supplemental material, sj-docx-1-mmc-10.1177_20501579221080333 for Selectively localized: Temporal and visual structure of smartphone screen activity across media environments by Daniel Muise, Yingdan Lu, Jennifer Pan and Byron Reeves in Mobile Media ...
Jennifer Pan (5103992)   +3 more
core   +1 more source

sj-docx-1-mmc-10.1177_20501579211029326 – Supplemental material for Studying problems, not problematic usage: Do mobile checking habits increase procrastination and decrease well-being?

open access: yes, 2021
Supplemental material, sj-docx-1-mmc-10.1177_20501579211029326 for Studying problems, not problematic usage: Do mobile checking habits increase procrastination and decrease well-being?
Adrian Meier (3936647)
core   +1 more source

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