Results 41 to 50 of about 210,511 (271)

Effects of Hexavalent Chromium on Physiological Function of Heart, Skeletal Muscle and Sciatic Nerve Trunk of Bullfrog

open access: yesTaiyuan Ligong Daxue xuebao
Proposes To investigate the toxicological mechanism of hexavalent chromium, the effects of hexavalent chromium on the heart, gastrocnemius muscle and action potential of sciatic nerve trunk in bullfrog were studied from the perspective of ...
Yanjun ZHANG   +6 more
doaj   +1 more source

In Vitro Evaluation of Bio Reduction of Hexavalent Chrome by Marine Microorganisms Isolated in the Cartagena Bay for Wastewater Treatment

open access: yesChemical Engineering Transactions, 2021
Contamination problems by heavy metals and specifically by hexavalent chromium generated by different production processes impact aquifers worldwide and require effective remediation methods for their control.
Gustavo Echeverri   +3 more
doaj   +1 more source

Bacterial reduction of hexavalent chromium

open access: yesJournal of Industrial Microbiology, 1995
Cr(VI)-reducing bacteria are widespread and Cr(VI) reduction occurs under both aerobic and anaerobic conditions. Under aerobic conditions, both NADH and endogenous cell reserves may serve as the electron donor for Cr(VI) reduction. Under anaerobic conditions, electron transport systems containing cytochromes appear to be involved in Cr(VI) reduction ...
Y T, Wang, H, Shen
openaire   +2 more sources

Hexavalent and trivalent chromium in leather: What should be done? [PDF]

open access: yes, 2015
Trivalent chromium compounds are used for leather tanning, and chromium may be released during use of leather goods. In certain instances, small amounts of hexavalent chromium can be formed and released.
A. Moretto
core   +1 more source

Incorporation of quantum carbon dots into a PVP/ZnO hydrogel for use as an effective hexavalent chromium sensing platform [PDF]

open access: yes, 2020
Hydrogels offer a unique medium for sensing applications as they can draw upon the benefits of both solid and liquid sensing platforms. Incorporation of functionalised fluorescent nanoparticles within the hydrogel matrix results in a three-dimensional ...
Truskewycz, A   +4 more
core   +1 more source

Removal of Chromium by Using of Adsorption onto Strong Base Anion Resin: Study of Equilibrium and Kinetic [PDF]

open access: yesآب و فاضلاب, 2011
Chromium is one of the heavy metals that is found in industrial effluents and is very toxic for human and environment. In this work the removal of hexavalent chromium by using of adsorption onto strongly basic anion was investigated.
Mehdi Shirzad Siboni   +4 more
doaj  

Chromium and leather: a review on the chemistry of relevance for allergic contact dermatitis to chromium

open access: yesJournal of Leather Science and Engineering, 2020
As other causes decline in importance, chromium-tanned leather has become a more important source for chromium allergy, which affects around 1% of the general population.
Yolanda S. Hedberg
doaj   +1 more source

DigiChrom: A Domain Ontology for Semantic Representation of Trivalent Chromium Platings and Its Large Language Model‐Based Alignment With Multiple Mid‐Level Ontologies

open access: yesAdvanced Engineering Materials, EarlyView.
Digitalizing electroplating requires both domain knowledge and interoperability. This work introduces PlatOn, a domain ontology for trivalent chromium plating and coating characterization, and a hybrid pipeline that aligns it to a mid‐level reference ontology by combining eight similarity metrics with language model reasoning. Expert‐validated mappings
Janik Harter   +10 more
wiley   +1 more source

Investigation of electroless nickel undercoat for duplex nickel chromium electrodeposition onto aluminium and its alloys [PDF]

open access: yes, 2009
A thesis submitted in partial fulfillment of the requirement of the University of Wolverhampton for the Degree of Master of Philosophy.The study investigates the deposition of a multilayer coating onto two aluminium alloys: Al 1050 and Al 6061.
Muhammad Enam Khan, Khan, Muhammad Enam
core  

Dual‐Substrate Synergistic Photocatalysis: Exogenous Reagent‐Free Co‐Removal of Phenol and Cr(VI) via Electron‐Donor‐Mediated Redox Coupling over Modified Carbon Nitride

open access: yesAdvanced Science, EarlyView.
An exogenous reagent‐free dual‐substrate strategy harnesses phenol as an intrinsic electron donor to drive synchronous phenol degradation and Cr(VI) reduction over modified carbon nitride. π–π stacking and hydrogen bonding direct electron transfer to the catalyst, enriching photogenerated electrons and accelerating Cr(VI) reduction 6.4‐fold. This waste‐
Xiaoman Zhang   +9 more
wiley   +1 more source

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