Results 51 to 60 of about 108,598 (292)
Chemistry – A European Journal, EarlyView.A new silver‐catalyzed H/D exchange reaction was developed for the labelling of quinones and related compounds. Both homogeneous and heterogeneous catalytic processes were implemented using heavy water as a simple deuterium source. The corresponding deuterated compounds were obtained with high isotopic enrichment through a practical method that opens ...
Joyce C. de Oliveira +7 more
wiley +1 more source
, 1970 A copy of the Congressional Record from March 19, 1970 regarding remarks made by Senator Mike ...
Gravel, Mike
core +5 more sources
Effect of Biochar on Water Infiltration Characteristics of Iimestone Soil in Southwest Karst Area
Shuitu Baochi Xuebao[Objective] In order to explore the effect of corn straw biochar on water infiltration characteristics of calcareous soil in southwest karst area. [Methods] Five biochar application gradients (0, 2%, 4%, 6%, and 8%), three gravel content soils (10%, 20%,
YU Hui +6 more
doaj +1 more source
The Canadian Journal of Chemical Engineering, EarlyView.Preparation, modification, and characterization of biochar from woodchips and its application in stream water filtration, evaluated through physicochemical and microbiological analyses. Abstract Global microbial water contamination affects 1.8 billion people, necessitating efficient and sustainable treatment methods.
Tariq Khalil +8 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley +1 more source
Contemporary and historic river channel change at Swinhope bum, Weardale: a study of river response to flood events in an upland, gravel-bed stream [PDF]
, 1998 The response of upland gravel-bed streams to floods has long been associated with high levels of erosion and deposition, often resulting in major changes in channel form. This largely stems from observations of upland channels immediately following large
Danks, Melanie
core
Seismic analysis and design of tunnels within fault ground: A review
Deep Underground Science and Engineering, EarlyView.The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang +6 more
wiley +1 more source
Proposition frantzösischen Herren Ambassadoren : Baden, den 9. Julij 1676
Proposition Herren Graffen Casate, spanischen Ambassadoren. Zu Baden bey löbl. eydgnosssischen gehaltener Tagsatzung, den 11. Iulij 1676 Ubergebenes memorial frantzösischen Herren Ambassadoren. Zu Baden bey löbl.
Gravel, Robert de
core +1 more source
Investigation on tunnel stability considering pipe‐roof support with transparent soil technology
Deep Underground Science and Engineering, EarlyView.This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia +4 more
wiley +1 more source