Results 11 to 20 of about 1,072,201 (334)

Indoor acids and bases. [PDF]

open access: yes, 2020
Numerous acids and bases influence indoor air quality. The most abundant of these species are CO2 (acidic) and NH3 (basic), both emitted by building occupants. Other prominent inorganic acids are HNO3 , HONO, SO2 , H2 SO4 , HCl, and HOCl.
Nazaroff, William W, Weschler, Charles J
core   +1 more source

Influence of organic acids and heat treatment on ginsenoside conversion

open access: yesJournal of Ginseng Research, 2018
Background: Heat treatments are applied to ginseng products in order to improve physiological activities through the conversion of ginsenosides, which are key bioactive components.
Gwi Yeong Jang   +6 more
doaj   +1 more source

Micro-Tom Tomato Response to Fertilization Rates and the Effect of Cultivation Systems on Fruit Yield and Quality

open access: yesHorticulturae, 2023
Fertilization is essential for the optimal growth and development of crops; however, the amount of fertilizer can cause positive or negative effects depending on its rate.
Naoki Terada   +4 more
doaj   +1 more source

HPLC Analysis of Secreted Organic Acids

open access: yesBio-Protocol, 2016
Under certain growth conditions some microorganisms secrete organic acids into the extracellular medium to relieve the accumulation of excess energy carriers, and/or to reduce toxic concentrations of organic acids. For example, a glycogen-deficient ∆glgC
Fiona Davies   +2 more
doaj   +1 more source

Electro-extractive fermentation for efficient biohydrogen production [PDF]

open access: yes, 2011
Electrodialysis, an electrochemical membrane technique, was found to prolong and enhance the production of biohydrogen and purified organic acids via the anaerobic fermentation of glucose by Escherichia coli. Through the design of a model electrodialysis
Artur J. Majewski   +34 more
core   +1 more source

Microbially-Produced Organic Acids as Leaching Agents for Metal Recovery Processes

open access: yesPostępy Mikrobiologii, 2022
Minerals have been important throughout history, but nowadays, their use has increased, as well as their extraction needs. Therefore, due to the growing demand for metals, and both the depletion of high-grade ores and their related environmental concerns,
Cruz-Rodríguez Itzel A.   +2 more
doaj   +1 more source

Chemical characterization of water-soluble organic carbon aerosols at a rural site in the Pearl River Delta, China, in the summer of 2006 [PDF]

open access: yes, 2009
Online measurements of water-soluble organic carbon (WSOC) aerosols were made using a particle-into-liquid sampler (PILS) combined with a total organic carbon (TOC) analyzer at a rural site in the Pearl River Delta region, China, in July 2006.
Blake, DR   +12 more
core   +1 more source

Comparative Ionomics and Metabolic Responses and Adaptive Strategies of Cotton to Salt and Alkali Stress

open access: yesFrontiers in Plant Science, 2022
Soil salinization and alkalization severely inhibit agriculture. However, the response mechanisms of cotton to salt stress or alkali stress are unclear.
Jiaxin Guo   +4 more
doaj   +1 more source

A Versatile Ligand Platform that Supports Lewis Acid Promoted Migratory Insertion [PDF]

open access: yes, 2012
A helping hand: Incorporation of Group 2 Lewis acids into a macrocycle appended to a phosphine ligand attached to a rhenium carbonyl complex promotes otherwise unfavorable transformations of coordinated CO (see scheme; M=Ca, Sr).
Bercaw, John E.   +2 more
core   +1 more source

Corrosion protection of AA2024 sealed anodic layers using the hydrophobic properties of carboxylic acids [PDF]

open access: yes, 2009
The present study investigates the use of carboxylic acids as a post-treatment for sealed AA2024 anodised in tartaric–sulphuric acid electrolyte. Four monocarboxylic acids with different carbon chain lengths were tested ((CH3–(CH2)n–COOH with n=4, 8, 12 ...
Boisier, Grégory   +4 more
core   +2 more sources

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