Results 161 to 170 of about 2,046,471 (351)

Enhancing printability of 3D printed concrete by using metakaolin and silica fume

open access: yesStructural Concrete, EarlyView.
Abstract This study investigates the effects of incorporating metakaolin (MK) and silica fume (SF) on the fresh and hardened properties of 3D printed concrete (3DPC). Five mix designs were prepared with MK replacement levels of 0%, 10%, 12.5%, and 15%, along with one mix containing 10% MK and 5% SF.
Marwah M. Thajeel   +2 more
wiley   +1 more source

Cellular Mechanism and Key Insights in Allergen Immunotherapy for Allergic Rhinitis

open access: yesWorld Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Allergic rhinitis (AR) arises from immune responses mediated by immunoglobulin E (IgE) to inhaled allergens, representing one of the most prevalent chronic conditions worldwide. Although AR may not be a serious ailment, it holds clinical relevance as it underpins numerous complications, serves as a major risk factor for suboptimal asthma ...
Zhe Wang   +3 more
wiley   +1 more source

With a Great Story Comes Great Responsibility: Role of Narrative in Leadership Development

open access: yesNew Directions for Student Leadership, Volume 2025, Issue 185, Page 81-87, Spring 2025.
ABSTRACT Comic books reside uniquely within American culture. Historians have contended comics are more than just sequential artwork mixed with engaging stories, but rather, a framework by which the generations make sense of who they are. These stories are a reflection of cultural conscience; a lens through which we can view the world and a mirror ...
Sean Connable
wiley   +1 more source

Theoretical studies of the ignition and combustion of silane-hydrogen-air mixtures [PDF]

open access: yes
A chemical kinetic mechanism is proposed for the combustion of silane-hydrogen-oxygen-nitrogen mixtures in the initial temperature range from 800K to 1250K and pressure range from 0.5 to 1.35 atm.
Chinitz, W.
core   +1 more source

Breakdown and Discharge Characteristics of High Repetition Frequency Nanosecond Pulsed Air Dielectric Barrier Discharge

open access: yesHigh Voltage, EarlyView.
ABSTRACT This study explores the breakdown characteristics and discharge modes in a parallel plate air dielectric barrier discharge system using repetitive nanosecond pulses, with pulse repetition frequencies (PRFs) from 0.1 to 100 kHz. It examines how pulse parameters—PRF, pulse number and gas pressure—affect the memory effect, leveraging current and ...
Mahreen   +3 more
wiley   +1 more source

Threshold Currents of Vacuum Arcs With Tungsten and Copper Cathodes

open access: yesHigh Voltage, EarlyView.
ABSTRACT This paper presents the results of an experimental study aimed at determining the threshold current for triggering a vacuum arc discharge, the probability of arc ignition and the average arc operation time depending on the current for tungsten and copper electrodes.
P. S. Mikhailov   +4 more
wiley   +1 more source

Ignition Delays of Methane Jets

open access: yesJOURNAL OF THE MARINE ENGINEERING SOCIETY IN JAPAN, 1988
Atsushi Sakane   +3 more
openaire   +2 more sources

Success and failure in foreign policy: Comparing Bob Hawke and Kevin Rudd's regional order‐building initiatives

open access: yesAustralian Journal of Public Administration, EarlyView.
Abstract Remarkably little is known about what factors drive success or failure in foreign policy. In part, this is because there is little fundamental agreement on what constitutes success or failure in this domain in the first place. This article engages with these shortcomings by comparing two similar regional order‐building initiatives overseen by ...
Benjamin Day
wiley   +1 more source

From Tobacco to Ultraprocessed Food: How Industry Engineering Fuels the Epidemic of Preventable Disease

open access: yesThe Milbank Quarterly, EarlyView.
Policy Points Ultraprocessed foods (UPFs) are engineered to heighten reward and accelerate delivery of reinforcing ingredients, driving compulsive consumption and disrupting appetite regulation. This is a growing challenge for health policy. UPFs share key engineering strategies adopted from the tobacco industry, such as dose optimization and hedonic ...
ASHLEY N. GEARHARDT   +2 more
wiley   +1 more source

The Gender of Fossil Fuels: Oil and Domestic Perils in Mandate Palestine

open access: yesGender &History, EarlyView.
ABSTRACT This article explores the gender dynamics behind the rise of kerosene – an oil derivative – as the main domestic fuel in Mandate Palestine. It argues that these dynamics were constitutive in determining who began to use oil, where and for what purposes, in turn demonstrating that women in Palestine were the promoters and targets of a campaign ...
Shira Pinhas
wiley   +1 more source

Home - About - Disclaimer - Privacy