Results 51 to 60 of about 15,248 (234)

Vanadium Effect on a Medium Carbon Forging Steel

Metals, 2016
In the present work the influence of vanadium on the hardenability and the bainitic transformation of a medium carbon steel is analyzed. While V in solid solution enhances the former, it hardly affects bainitic transformation.
Carlos Garcia-Mateo, Lucia Morales-Rivas, Francisca G. Caballero, David Milbourn, Thomas Sourmail   +4 more
doaj   +1 more source

Electronic Interaction at Cu–O–Ni Heterointerface Promotes Electrocatalytic Nitrate Reduction to Ammonia and Zinc‐Nitrate Battery

Advanced Science, EarlyView.
The strong Cu–O–Ni electronic interaction in the heterostructured catalyst can enhance the effective adsorption of NO3− and accelerate the in situ hydrolysis dissociation of the hydrogenation step. The Zn‐NO3 hybrid battery assembled with this catalyst achieves an open‐circuit voltage of 1.45 V, a peak power density of 6.47 mW cm−2, and can ...
Taozhi Lv, Lekuan Yang, Can Hong, Yihua Zhu, Jianhua Shen, Chunzhong Li   +5 more
wiley   +1 more source

Fluorinated Glycan Frameshifts: Automated Synthesis Expedites the Study of Glycan‐Protein Interactions by 19F‐BioNMR

Angewandte Chemie, EarlyView.
Given the prominence of 19F‐bioNMR in structural research, fluorinated glycans hold enormous potential in glycomimetic frameshift design. However, challenges associated with the stereocontrolled synthesis of these disruptive actors continue to frustrate advances. To address this, the automated synthesis of selectively C‐2 fluorinated glycans related to
James Suri, Christina Jordan, Charlotte S. Teschers, Kristina Schlangen, Simon H. Rüdisser, Alvar D. Gossert, Ryan Gilmour   +6 more
wiley   +2 more sources

Behavior of asymmetric deformation of rod in locally-lateral upsetting

Mechanical Engineering Journal, 2016
In multi-stage closed die forging, an optimum shape of a preform is required to economically manufacture more complicate and precise products. This preform promotes to distribute an appropriate volume, and it helps to reduce material loss and forging ...
Takashi NOMURA, Con Sinh NGUYEN, Kazuhito ASAI, Kazuhiko KITAMURA   +3 more
doaj   +1 more source

XOR‐Logic Phase Coding Programmable Metasurface for Low Power‐Consumption Systems

Advanced Science, EarlyView.
By leveraging XOR logic, the biasing‐network complexity of 2D programmable metasurfaces is reduced from m×n to m+n through efficient row‐column control. This enables versatile functions including beam deflection and beamforming, facilitating applications in wireless communications and beyond.
Ruichao Zhu, Sai Sui, Junyan Dai, Qunyan Zhou, Yuxiang Jia, Yajuan Han, Yuxi Li, Shaojie Wang, Qiang Cheng, Jiafu Wang, Tie Jun Cui   +10 more
wiley   +1 more source

Arylhydrazines: Convenient Homogeneous Reductants for Scalable Cross‐Coupling

Angewandte Chemie, EarlyView.
Reductive cross‐couplings enable efficient C–C bond formation but are limited by the heterogeneity of Zn or costly reagents like TDAE. We report arylhydrazines as inexpensive, convenient reductants for Ni‐catalyzed sp2–sp3 coupling of aryl halides and secondary alkyl iodides. Mechanistic studies support hydrazine‐mediated NiII reduction for a NiI/NiIII
Nils Kurig, David A. Cagan, Kaid C. Harper, Yu Kawamata, Donna G. Blackmond, Phil S. Baran   +5 more
wiley   +2 more sources

The Results of Studying the Technique of Making Golden Horde Products Made of Non-Ferrous Metals (from the Collection of the Volgograd Regional Museum of Local Lore)

Вестник Волгоградского государственного университета. Серия 4. История, регионоведение, международные отношения, 2019
Introduction. The article is devoted to the results of tracing research of things made of non-ferrous metals from the collections of Tsarevskoe, Vodyanskoe, and Mechetnoe settlements, stored in the funds of the Volgograd regional museum of local lore.
Kseniya S. Kovaleva
doaj   +1 more source

Empowering Carbon Fibers With Ti3C2Tx MXene: A Paradigm Shift Toward Integrated Structure‐Function Composites

Advanced Science, EarlyView.
This review comprehensively outlines how Ti3C2Tx MXene transforms carbon fiber from a structural component into a multifunctional platform. We systematically detail cutting‐edge modification strategies and showcase exceptional performance in EMI shielding, energy storage, smart sensing, and beyond.
Hongshuo Cao, Yue Xing, Jiangman Sun, Yanhong Tian, Yangyang Gao, Xuejun Zhang, Xiubing Liang   +6 more
wiley   +1 more source

Nanoforging – Innovation in three-dimensional processing and shaping of nanoscaled structures

Beilstein Journal of Nanotechnology, 2014
Background: This paper describes the shaping of freestanding objects out of metallic structures in the nano- and submicron size. The technique used, called nanoforging, is very similar to the macroscopic forging process.Results: With spring actuated ...
Andreas Landefeld, Joachim Rösler
doaj   +1 more source

The Effect of Silicon Deficiency on Material Properties of Noduar Cast Iron [PDF]

OUSL Journal
The brittle failure of a crankshaft was investigated. The chemical composition and material properties of the crankshaft were analyzed. The hardness profile indicated that the manufacturer used the crankshaft as cast without heat treatment.
S.D. Rasika Perera
doaj   +1 more source