Results 91 to 100 of about 325,822 (320)

Blasting Energy Analysis of the Different Cutting Methods

open access: yesShock and Vibration, 2018
Based on the smooth blasting method, the blasting parameters of the Beishan exploration tunnel have been designed. According to the principle of blasting parameters design, three kinds of cutting methods have been laid out, which are straight parallel ...
Ke Man, Xiaoli Liu, Ju Wang, Xiyong Wang
doaj   +1 more source

Numerical analysis of thermal process in the near field around vertical disposal of high-level radioactive waste

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2014
For deep geological disposal of high-level radioactive waste (HLW) in granite, the temperature on the HLW canisters is commonly designed to be lower than 100 °C. This criterion dictates the dimension of the repository.
H.G. Zhao   +5 more
doaj   +1 more source

Closing the nutrient loop between urban and rural areas: a case study analyzing the technical potential of recycling fertilizers from urban biorefineries

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract The world's population is expected to grow rapidly, with the vast majority of people living in urban areas. Closing nutrient loops is therefore increasingly important for food security and environmental stability. In Germany however, the current treatment of organic and green waste and sewage sludge (derived from wastewater) includes ...
Marielle Trenkner   +7 more
wiley   +1 more source

Author Correction: Weak influence of the secondary surface processes on the regolith of Chang’E-5 landing site

open access: yesCommunications Earth & Environment, 2023
Junjie Li   +19 more
doaj   +1 more source

A new type U-Th-REE-Nb mineralization related to albitite: A case study from the Chachaxiangka deposit in the northeastern Qaidam Basin of China

open access: yesChina Geology, 2019
: The U-Th-REE-Nb (Ta)-polymetallic mineralization is generally related to either the silica-undersaturated syenites, the silica-oversaturated alkaline/peralkaline granites or igneous carbonatites.
Jun Zhong   +6 more
doaj  

Geological characteristics of neoproterozoic motianling granitic pluton hosting uranium mineralization in North Guangxi, China: Insights from biotite chemistry

open access: yesFrontiers in Earth Science
The Motianling pluton represents a characteristic U-bearing granite pluton in South China. Biotite serves as an indicator for the mineralization of metals such as Cu, Sn, and W in granite. Previous studies have extensively investigated the U metallogenic
Pailong Luo   +11 more
doaj   +1 more source

Review of industry-proposed in-pile thermionic space reactors. Volume I - General [PDF]

open access: yes
Diode and reactor design and nuclear fuels including uranium carbide alloys, uranium dioxide and uranium dioxide cermets for industry proposed in-pile thermionic space ...
Davis, J. P., Gronroos, H., Phillips, W.
core   +1 more source

Biochar in the circular bioeconomy: a bibliometric analysis of technologies, applications, and trends

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Biochar has attracted considerable attention in recent years for its wide‐ranging applications, particularly its role in carbon sequestration as a strategy to mitigate greenhouse gas emissions. Its emerging uses within the circular bioeconomy also position it as a valuable tool for environmental management, and ongoing research continues to ...
Jean Agustin Velasquez‐Pinas   +6 more
wiley   +1 more source

Economic Rationality and International Humanitarianism: Ryōkichi Sagane's Advocacy Regarding the Introduction of Foreign Nuclear Reactors to Japan**

open access: yesBerichte zur Wissenschaftsgeschichte, EarlyView.
Abstract The 2011 Fukushima Daiichi Nuclear Power Plant accident underscored the crucial role of nuclear engineering experts. However, the specific arguments and motivations of scientists advocating for the introduction of foreign reactors remain unclear.
Masahiro Inohana
wiley   +1 more source

Petrography and geochemistry of sandstones from the middle Jurassic Zhiluo Formation in the northern margin, Ordos Basin: implications for provenance, tectonic setting, paleoweathering, paleoclimate, and sandstone-type uranium mineralization

open access: yesFrontiers in Earth Science
This study aims to analyze the provenance of Middle Jurassic Zhiluo Formation sandstones exposed by drilling in the northern Ordos Basin (Bayingqinggeli area) and reconstruct the tectonic setting, paleoclimate, and paleoweathering conditions of their ...
Xiaoneng Luo   +6 more
doaj   +1 more source

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