Results 71 to 80 of about 294,634 (303)

Initiation of stabilized detonations by projectiles [PDF]

open access: yes, 2005
A high-speed projectile in combustible gas can initiate and stabilize a detonation wave under suitable conditions [1]. In this paper, numerical simulations of projectile induced detonation waves are presented. Using a one-step irreversible reaction model,
Hung, P., Shepherd, J. E.
core  

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

open access: yesAdvanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He   +5 more
wiley   +1 more source

Social Determinants of Smoke Exposure During Pregnancy: Findings From Waves 1 & 2 of the Population Assessment of Tobacco and Health (PATH) Study [PDF]

open access: yes, 2018
Maternal smoking during pregnancy (MSDP) and secondhand smoke (SHS) exposure are associated with a myriad of negative health effects for both mother and child.
Do, Elizabeth K.   +3 more
core   +1 more source

Engineering Intelligent Graphene Oxide‐Cellulose Membranes: Suppressing Thermal Runaway for a Safer Aqueous Zinc‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A novel thermos‐responsive hydroxypropyl cellulose/graphene oxide (HPC/GO) composite membrane is fabricated for reversible temperature‐gated ion transport in aqueous zinc‐ion batteries. Enabled by LCST‐driven structural transition, unimpeded ion diffusion at room temperature delivers high capacity, while elevated temperature suppresses transport; full ...
Xueli Bi   +9 more
wiley   +1 more source

Health effects of oil and waste pollutants on Delta Nigeria inhabitants' well being and its mitigation

open access: yesEmergency Management Science and Technology
Water quality, trace gas (SO2, CO2, and NO2), particulate matter (PM 10 as well as PM2.5), and effluent emissions were quantified near cement and oil factories and nearby suburban areas within Delta Nigeria.
Christopher Ehizemhen Igibah   +4 more
doaj   +1 more source

Ignition and combustion in a laminar mixing zone [PDF]

open access: yes, 1954
The analytic investigation of laminar combustion processes which are essentially two- or three-dimensional present some mathematical difficulties.
Adamson, Thomas C., Jr.   +1 more
core  

Silicified Wood‐Inspired, High‐Strength Fire‐Resistant Chitin‐Based Aerogels for Sustainable High‐Temperature Thermal Insulation

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by natural silicified wood, a biomimetic mineralized chitin‐derived aerogel is constructed. It can withstand 81 000 times its own weight, and its backside temperature is 130.4°C after exposure to ∼1300°C butane flame for 600 s, exhibiting high‐strength, fire‐resistance, and super thermal‐insulation properties.
Kai Xu   +11 more
wiley   +1 more source

Calorimetría de maderas pertenecientes a especies existentes en la provincia de Tucumán

open access: yesLilloa, 2021
El autor informa sobre sus experimentos con 55 maderas pertenecientes a especies de la flora tucumana. Para cada madera se da el poder calorífico superior e inferior del núcleo, la albura y la corteza, valores que se determinaron con la ayuda del ...
Eduardo Latzina
doaj  

Does Exposure and Receptivity to E-cigarette Advertisements Relate to E-cigarette and Conventional Cigarette Use Behaviors among Youth? Results from Wave 1 of the Population Assessment of Tobacco and Health Study [PDF]

open access: yes, 2018
Background: E-cigarettes (EC) are the most commonly used tobacco product among youth. Additionally, youth EC users are progressing to smoking conventional cigarettes (CC).
Barnes, Andrew J, PhD   +2 more
core   +1 more source

Solvent Co‐Intercalation Enabled Ca Storage in MoS2 for Ca‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Regulating electrolyte solvation levels enables otherwise non‐intercalatable Ca2+ ions to reversibly co‐intercalate into molybdenum disulfide (MoS2) as ether‐solvated species. The intercalation reversibility is strongly governed by solvent chain length, as demonstrated using diethylene glycol dimethyl ether (G2) and tetraethylene glycol dimethyl ether (
Yudong Luo   +10 more
wiley   +1 more source

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