Results 91 to 100 of about 166,056 (264)

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

Deep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu, Manchao He, Jun Yang, Yubing Gao, Qiang Fu, Qing Ma, Yajun Wang   +6 more
wiley   +1 more source

Newtonian Computation of Perihelion Precession of Mercury—An Update

OALib, 2015
A updated numerical evaluation of the Newtonian component of Mercury’s perihelion advance over more than two centuries starting from about the year 2000 is made using the Euler’s algorithm as well as a modified Euler algorithm. Results are given for about the last 30 years of this interval which show that the precession rate may be substantially higher
openaire   +1 more source

Ni–Zn–Ga Alloy for Weak Sunlight‐Driven Methanol Production From CO2 and H2O at Ambient Pressure

EcoEnergy, EarlyView.
The Ni–Zn–Ga ternary alloy‐assisted photothermal CO2 hydrogenation system coupled with photovoltaic water splitting could convert CO2 and H2O into methanol with a production rate of 709 μmol g−1 h−1 under natural sunlight irradiation. ABSTRACT The sunlight‐driven artificial photosynthesis that converts CO2 and H2O into methanol is a promising approach ...
Linjia Han, Fanqi Meng, Qixuan Wu, Tianxing Liu, Xianhua Bai, Yanhong Luo, Jiangjian Shi, Yaguang Li, Dongmei Li, Qingbo Meng   +9 more
wiley   +1 more source

Perihelion Precessions of Inner Planets in Einstein's Theory and Predicted Values for the Cosmological Constant. [PDF]

ScientificWorldJournal, 2022
Salas S AH, Castillo H JE, Martınez H LJ.   +2 more
europepmc   +1 more source

Tellurium Electrochemistry: From Mechanistic Analysis in Diverse Electrolytic Media to Advanced Energy Storage Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
As a metalloid with broad prospects in advanced applications, Te has not been fully clarified in terms of its intricate electrochemical behaviors across varied systems. This review systematically integrates fundamental electrochemical mechanisms, reaction kinetics identifications, and device application insights, establishing a comprehensive framework ...
Meng Zhang, Jiguo Tu, R. Vasant Kumar, Libo Chen, Tangkai Wu, Lili Jiang, Shuqiang Jiao   +6 more
wiley   +1 more source

Solar oblateness and Mercury's perihelion precession [PDF]

Monthly Notices of the Royal Astronomical Society, 2011
Yan Xu, Yuanxi Yang, Qin Zhang, Guochang Xu   +3 more
openaire   +4 more sources

Regulating Mercury Emissions: What Do We Know About Costs and Benefits? [PDF]

United States policymakers are concerned with mercury emissions because mercury has potentially adverse effects on children whose mothers consumed contaminated fish while pregnant.
Mader, Elizabeth A., Lutter, Randall, Knuffman, Nathan   +2 more
core  

Origin of Physicochemical and Mechanical Stability of Low‐Temperature Prepared TiO2‐Based Photocatalytic Films: Surface Hydroxyl Density Matching

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Material science advances show how surface chemistry improves low‐temperature prepared TiO2‐SiO2 composite films. Using a colloidal‐based synthesis method instead of a powdered‐based one, researchers exploit hydroxyl groups' interfacial interactions to create nanoscale structures with superior physicochemical and mechanical stability.
Andraž Šuligoj, Mohamad El‐Roz, Goran Dražić, Frédéric Thibault‐Starzyk, Pegie Cool, Nataša Zabukovec Logar, Urška Lavrenčič Štangar, Nataša Novak Tušar   +7 more
wiley   +1 more source

Mercury Cycling in Terrestrial Watersheds

, 2012
Mercury pollution and contamination are widespread, well documented, and continue to pose a public health concern in both developed and developing countries.
Bishop, Kevin,, Shanley, J.B.,
core   +1 more source

Synthetic Strategies for the Construction of Cyclobutane‐Fused Heterocycles

European Journal of Organic Chemistry, EarlyView.
Cyclobutane‐fused heterocycles are important motifs commonly present in bioactive compounds, recognized for their rigid 3D structures that confer unique properties. However, synthesizing these compounds remains challenging. This review discusses current methods for their synthesis, such as photochemical, metal‐catalyzed, and Lewis acid‐mediated [2 + 2]
Michela Vargiu, Mauro Uras, Angelo Frongia   +2 more
wiley   +1 more source