Results 41 to 50 of about 1,081,244 (305)
Gridded uncertainty in fossil fuel carbon dioxide emission maps, a CDIAC example [PDF]
Atmospheric Chemistry and Physics, 2016 Due to a current lack of physical measurements at appropriate spatial and temporal scales, all current global maps and distributions of fossil fuel carbon dioxide (FFCO2) emissions use one or more proxies to distribute those emissions.
R. J. Andres, T. A. Boden, D. M. Higdon
doaj +1 more source
Carbon dioxide concentration indicator [PDF]
, 1972 Device will provide visual indication of concentration of carbon dioxide. It consists of small amounts of absorbent material contained in semipermeable membrane and device to detect color changes.
King, P. H.
core +1 more source
Clinical Validation of Plasma p‐217tau in Neurological Diseases
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Plasma p‐217tau is a minimally invasive but specific biomarker for diagnosing Alzheimer's disease (AD). However, its disease specificity remains to be clinically evaluated. We validated the reliability of the p‐217tau biomarker in 12 other neurological diseases.
Takeshi Kawarabayashi +13 more
wiley +1 more source
Blue Urea: Fertilizer With Reduced Environmental Impact
Frontiers in Energy Research, 2019 Synthetic nitrogen fertilizers such as urea are a necessity for food production, making them invaluable toward achieving global food security. Conventional manufacture of urea is conducted in centralized production plants at an enormous scale, with the ...
Justin G. Driver +5 more
doaj +1 more source
A new evaluation of the uncertainty associated with CDIAC estimates of fossil fuel carbon dioxide emission [PDF]
Tellus: Series B, Chemical and Physical Meteorology, 2014 Three uncertainty assessments associated with the global total of carbon dioxide emitted from fossil fuel use and cement production are presented. Each assessment has its own strengths and weaknesses and none give a full uncertainty assessment of the ...
Robert J. Andres +2 more
doaj +1 more source
Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres
Advanced Engineering Materials, EarlyView.This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann +3 more
wiley +1 more source
Study on early seal failure of CO2-injected packer based on orthogonal experimental method
Alexandria Engineering Journal, 2023 Early seal failure occurs frequently in the of CO2 injection well packer, which is mainly manifested as failure of packer rubber, which seriously affects the normal production of gas well.
Deping Zhang +5 more
doaj +1 more source
Space-suit carbon dioxide absorption system: A concept [PDF]
, 1972 Partial pressure of carbon dioxide within a space suit is maintained at safe levels by regenerating carbon dioxide with potassium hydroxide solution on board spacecraft or by portable ...
Copeland, R. J., Webbon, B. W.
core +1 more source
Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere
Advanced Engineering Materials, EarlyView.A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz +4 more
wiley +1 more source
Alkali metal carbon dioxide electrochemical system for energy storage and/or conversion of carbon dioxide to oxygen [PDF]
, 1993 An alkali metal, such as lithium, is the anodic reactant; carbon dioxide or a mixture of carbon dioxide and carbon monoxide is the cathodic reactant; and carbonate of the alkali metal is the electrolyte in an electrochemical cell for the storage and ...
Hagedorn, Norman H.
core +1 more source