Engineering students spend a significant amount of their undergraduate careers focused on technical theory and practice. This intensive student prepares them for their technical challenges in the future. This training is so intense that often the more 'soft skills' such as communication, leadership, design, and troubleshooting are left out or...
The concept of construction industrialization, first raised in the 1960s, refers to the transfer of on-site construction work to an off-site factory to improve quality and reduce cost, time, and safety issues. In some countries, industrialization of construction projects is highly recommended and promoted by governments and local construction institutions...
Improved recovery of cryopreserved meristems and calli from in
vitro currant (Ribes aureum Pursh and R. ciliatum Humb. & Bonpl.) plants
was obtained by two-hour pretreatment with sucrose, proline, abscisic
acid-responsive protein (RABP), and bovine serum albumin (BSA)
solutions. Meristems and calli cold-acclimatized for one week were
immersed in pretreatment...
We introduce a novel ambient hydrolysis deposition (AHD) methodology that, for the first time, employs sequential water adsorption followed by a hydrolysis reaction to infiltrate tiny SnO2₂ particles inside nanopores of mesoporous carbon in a conformal and controllable manner. The empty space in the SnO2₂/C composites can be adjusted by...
The Laplace-Beltrami operator of a smooth Riemannian manifold is determined by the Riemannian metric. Conversely, the heat kernel constructed from the eigenvalues and eigenfunctions of the Laplace-Beltrami operator determines the Riemannian metric. This work proves the analogy on Euclidean polyhedral surfaces (triangle meshes), that the discrete heat kernel and the...
Na-ion batteries are emerging as one of the most promising energy storage technologies, particularly for grid-level applications. Among anode candidate materials, hard carbon is very attractive due to its high capacity and low cost. However, hard carbon anodes often suffer a low first-cycle Coulombic efficiency and fast capacity fading. In...
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Anode for Na-Ion Batteries via
Graphene Oxide as a Dehydration Agent
Luo, W., Bommier, C., Jian, Z
Porous silicon prepared by low-cost and scalable magnesiothermic reactions is a promising anode material for Li-ion batteries; yet, retaining good cycling stability for such materials in electrodes of practical loading remains a challenge. Here, we engineered the nanoporous silicon from a modified magnesiothermic reaction by controlled surface oxidization forming a...
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, W. Qi, M.H. Engelhard, W. Xu,
F. Ding, J. Xiao, W. Wang, C.M. Wang, J.G. Zhang, J. Liu, J.
Mater
Converting CO2 to valuable materials is attractive.Herein, we report using simple metallothermic reactions to reduce atmospheric CO2 to dense nanoporous graphene. By using a Zn/Mg mixture as a reductant, the resulted nanoporous graphene exhibits highly desirable properties: high specific surface area of 1900 m2/g, a great conductivity of 1050 S/m...
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[14] L.Q. Mai, H. Li, Y.L. Zhao, L. Xu, X. Xu, Y.Z. Luo, Z.F. Zhang,
W. Ke, C.J. Niu, Q.J. Zhang
An enantioselective 1,3-dipolar cycloaddition of 2-cyclo-hexene-1-one and azomethine ylide generated in situ from isatin and amino ester was developed by employing proline sulfonamide as the catalyst. Consequently, novel polycyclic spirooxindole scaffolds with three contiguous stereocenters were prepared in high yield (up to 95%) with excellent diastereo- (> 20:1 dr) and...
The production and transportation of fuel from sawmill refuse is influenced by considerations of raw material cost, type of equipment, operating supplies, operating labor, and distance from source to market. Fuels from sawmill refuse are transported principally by means of trucks, railroad cars, barges, or combinations of those methods.