Results 31 to 40 of about 93,700 (278)

Magnetically separable Fe3O4-SiO2/Pt catalyst and its application for uranium reduction

Scientific Reports
Magnetically separable Fe3O4-SiO2/Pt catalysts with ~ 2% Pt loading have been developed for the generation of U(IV) in HNO3-N2H4 medium, used in the nuclear spent fuel reprocessing. Pt was impregnated in the catalysts via reductive heat treatment.
Kuntal Kumar Pal, Ramakrishna Reddy, Chanchal Ghosh, K. Ananthasivan, P. Velavendan, Ramesh L. Gardas, Sandip Dhara   +6 more
doaj   +1 more source

Application of isomorphic remote manipulators with haptic feedback in the development of automatic analysis equipment for spent fuel reprocessing samples

International Journal of Advanced Nuclear Reactor Design and Technology
Acid concentration and plutonium valence state in samples are crucial analytical parameters for process control during spent fuel reprocessing. Due to the high radioactivity and strong corrosiveness of reprocessing samples, remote operation is mandatory.
Li Li, Dingcan Jin, Han Yang, Zhiqiang Wang, Zhiheng Wang, Yurong Li, Quanwei Liu, Yantao Hu, Liudong Hou, Jing Ma   +9 more
doaj   +1 more source

Block Copolymers: Emerging Building Blocks for Additive Manufacturing

Advanced Functional Materials, EarlyView.
This review addresses how block copolymer (BCP) physics and rheology have led to the widespread use of BCPs in advanced additive manufacturing techniques, with particular emphasis on the untapped potential of these nanostructured materials toward achieving multi‐scale architected materials with unique, programmable material properties.
Alice S. Fergerson, Hemish B. Thakkar, Jiaen Wu, Emily C. Davidson   +3 more
wiley   +1 more source

Reconstituted asbestos matrix for fuel cells [PDF]

, 1975
Method is described for reprocessing commercially available asbestos matrix stock to yield greater porosity and bubble pressure (due to increased surface tension), improved homogeneity, and greater ...
Mcbryar, H.
core   +1 more source

Switchable Supramolecular Adhesive by Tuning Interfacial Bonding and Modulus

Advanced Functional Materials, EarlyView.
The supramolecular adhesive (HyDiP) shows reversible adhesion and recyclability. In the dehydrated state, it is dense, stiff (E ≈445 MPa), transparent, and provides strong bonding with adhesion strengths up to 4.65 MPa. In the hydrated state, it becomes porous, soft (E ≈0.11 MPa), and detaches easily, enabling sustainable high‐strength applications ...
Rumin Fu, Cairong Xiao, Zihao Du, Changhong Linghu, Yongdong Shi, Chuyang Xiang, Mingxin Wan, Guoxin Tan, Limin Lu, Chengyun Ning, K Jimmy Hsia   +10 more
wiley   +1 more source

RGO-Pt as an effective catalyst for U(IV) generation under hydrogen

Scientific Reports
Effective generation of U(IV) from U(VI) is a key step to achieve the partitioning of Pu from U in a spent nuclear fuel reprocessing plant. Reduction under a hydrogen atmosphere is one of the methods for the generation of U(IV) from U(VI) in the presence
Kuntal Kumar Pal, Ramakrishna Reddy, Chanchal Ghosh, Sandip Dhara   +3 more
doaj   +1 more source

Study on the direct measurement method for trace plutonium in samples from spent fuel reprocessing

International Journal of Advanced Nuclear Reactor Design and Technology
To directly, rapidly, and accurately measure trace plutonium in reprocessing samples, two α scintillation counters were developed for the direct measurement of liquids and solids after source preparation.
Li Li, Han Yang, Yingtong Fang, Xianlong Chang, Yuning Niu, Guodu Jiang, Songtao Yang, Zhiheng Wang, Zhaoqing Zhang, Yurong Li, Quanwei Liu   +10 more
doaj   +1 more source

Progress and Development of Electrorefiner in Dry Reprocessing Process

He huaxue yu fangshe huaxue, 2023
Fast reactor spent fuel with high burnup has the characteristics of high plutonium content, high radioactivity and high heat release rate. The aqueous reprocessing based on solvent extraction principle has the problem of solvent radiolysis.
ZHANG Jin-yu, LIN Ru-shan, ZHANG Lei, TANG Hong-bin, YE Guo-an   +4 more
doaj   +1 more source

HST Observations of GRO J1655-40 in Outburst [PDF]

, 1998
We examine the results of a coordinated HST-RXTE-CGRO campaign to study the microquasar GRO J1655-40 during its 1996-7 outburst, focusing on interpretation of the overall anti-correlation seen between optical and X-ray fluxes during the early months of ...
Hynes, R. I.
core   +4 more sources

Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance

Advanced Functional Materials, EarlyView.
A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer, Emilia Fulajtar, Seema Agarwal   +2 more
wiley   +1 more source