Results 71 to 80 of about 3,656,066 (246)

Eugène Melchior Peligot

open access: yesEducación Química, 2018
Eugène Melchior Peligot (1811-1890) did research in a wide range of subjects, among them sugars and their reactions, chromium, uranium, iron, and their salts, the composition and structure of glass, the silkworm, fertilizers, and drinking water.
Jaime Wisniak
doaj   +1 more source

Environmental Legitimation in A Global Context: Emerging Market Multinational Enterprises Versus Developed Market Multinational Enterprises

open access: yesBusiness Ethics, the Environment &Responsibility, EarlyView.
ABSTRACT The purpose of this paper is to study the differences and similarities between emerging market multinationals (EMNEs) and developed market multinationals (DMNEs) in their levels of adoption of environmental management policies and environmental disclosure practices when they increase their international diversification.
Nuria Esther Hurtado‐Torres   +3 more
wiley   +1 more source

Characteristics of Potential-pH Diagram of U-CO3(2-) -H2O System and Its Influencing Factors

open access: yesYuanzineng kexue jishu
Hydrogen reduction method has been widely studied and applied in the hydrometallurgy preparation of metal powders or oxides due to its simple operation, clean and environmental protection.
LI Dabing, NIU Yuqing, KANG Shaohui, ZHOU Zhiquan, YE Kaikai, SHEN Haonan, KANG Xiuming
doaj   +1 more source

Theoretical analysis of uranium-doped thorium dioxide: Introduction of a thoria force field with explicit polarization

open access: yesAIP Advances, 2015
Thorium dioxide is used industrially in high temperature applications, but more insight is needed into the behavior of the material as part of a mixed-oxide (MOX) nuclear fuel, incorporating uranium.
A. E. Shields   +2 more
doaj   +1 more source

Appraisal of Six Natural Mica Reference Materials for In Situ Rb‐Sr Geochronology

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points Evaluated six natural mica reference materials for in situ LA‐ICP‐MS/MS Rb‐Sr geochronology using geochemical, microstructural and isotopic characterisation. Identified robust primary reference materials: Mount Dromedary biotite (99.37 Ma) and Mica‐Fe biotite (307.75 Ma). La Posta biotite and Högsbo muscovite are suitable secondary reference
Hugo K.H. Olierook   +38 more
wiley   +1 more source

Melanoma and Other Melanistic Lesions in Brown Bullhead Ameiurus nebulosus From Waterbodies in the Northeastern United States and Canada: Identification of Risk Factors

open access: yesJournal of Fish Diseases, EarlyView.
ABSTRACT Melanistic lesions, including non‐raised black areas due to proliferations of melanocytes and melanomacrophages in the dermis and epidermis, as well as raised black areas consistent with melanoma, are described in brown bullhead (BBH) Ameiurus nebulosus from three water bodies in the northeastern United States and Quebec, Canada.
Vicki S. Blazer   +9 more
wiley   +1 more source

Techno-economic evaluation of an environmental-friendly processing route to extract rare earth elements from monazite

open access: yesCleaner Engineering and Technology
The relatively high concentration of thorium and uranium in monazite poses significant environmental issues in the extraction process of rare earth elements from monazite if left untreated.
Reiza Z. Mukhlis   +7 more
doaj   +1 more source

The Origins of Ploem's Filter Cube: A Pandora's Box

open access: yesJournal of Microscopy, EarlyView.
Abstract Ploem's filter cube, central to modern epifluorescence microscopy, integrates three matched optical components: an excitation filter, an emission filter, and a dichroic mirror. Together, these elements enable the separation of excitation and emission light paths, producing high‐contrast fluorescence images.
Jack Gordon   +3 more
wiley   +1 more source

Preparation and characterization of biochar-iron oxide-palygorskite composites for uranium(VI) removal from aqueous solutions

open access: yesChemistry Journal of Moldova: General, Industrial and Ecological Chemistry
This paper details the synthesis of palygorskite/biochar/iron oxide composites and their utilization for the remediation of water solutions contaminated with uranium(VI).
Ihor Pylypenko   +4 more
doaj   +1 more source

Diagenetic controls on porosity evolution and pore type organisation in microporous carbonate rocks: Evidence for mesogenetic porosity formation

open access: yesSedimentology, EarlyView.
ABSTRACT Microporous carbonate rocks typically record complex diagenetic histories driven by microbial activity and fluid interactions within multiple diagenetic environments. The relative roles of meteoric and burial diagenetic processes in pore evolution remain debated, particularly within Cretaceous carbonate systems of the Middle East, as does the ...
Hugues Bitault   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy