Results 51 to 60 of about 7,059 (266)

Modes of occurrence and removal of toxic elements from high‐uranium coals of Rongyang Mine by stepped release flotation

Energy Science & Engineering, 2019
The Rongyang coals from Guizhou, southwestern China, are significantly enriched with uranium (U) and other toxic elements, such as vanadium (V), chromium (Cr), molybdenum (Mo), cobalt (Co), copper (Cu), and selenium (Se).
Piaopiao Duan, Wenfeng Wang, Shuxun Sang, Mengya Ma, Jinxi Wang, Wei Zhang   +5 more
doaj   +1 more source

Noise‐Limited Bit Precision in Ferroelectric Synaptic Transistors for High‐Resolution Neuromorphic Computing

Advanced Functional Materials, EarlyView.
Low‐frequency noise spectroscopy defines the resolvable conductance states of synaptic FeFETs by coupling read‐current fluctuation with usable dynamic range. The resulting noise‐limited bit precision establishes a universal, device‐agnostic reliability metric beyond the memory window, enabling quantitative benchmarking and rational design of high ...
Jaehong Park, Yeonseop Shin, Changhyeon Han, Sangwoo Kim, Eunchan Park, Youngchan Cho, Jaehong Min, Hyunjun Ahn, Jaekyoung Park, Cheol‐Woong Yang, Jangsaeng Kim, Daewoong Kwon, Wonjun Shin   +12 more
wiley   +1 more source

Comprehensive Recovery Process of Skarn Type Copper-sulfur Ore Resources

Kuangchan zonghe liyong
This is an article in the field of mineral processing engineering. For a skarn copper ore, the disseminated particle size is fine, the valuable elements in the ore are Cu, S, Fe and the associated element Ag.
Jing ZHANG, Xin TANG, Xiangwen LYU, Sheng JIAN, Jibo QIAO, Lin ZHANG   +5 more
doaj   +1 more source

A comparative study on the effects of dry and wet grinding on mineral flotation separation–a review

Journal of Materials Research and Technology, 2019
Water scarcity dictates to limit the use of water in ore processing plants particularly in arid regions. Since wet grinding is the most common method for particle size reduction and mineral liberation, there is a lack of understanding about the effects ...
S. Chehreh Chelgani, M. Parian, P. Semsari Parapari, Y. Ghorbani, J. Rosenkranz   +4 more
doaj   +1 more source

Modeling the Separation of Microorganisms in Bioprocesses by Flotation [PDF]

Processes, 2018
Bioprocesses for the production of renewable energies and materials lack efficient separation processes for the utilized microorganisms such as algae and yeasts. Dissolved air flotation (DAF) and microflotation are promising approaches to overcome this problem. The efficiency of these processes depends on the ability of microorganisms to aggregate with
Stefan Schmideder, Christoph Kirse, Julia Hofinger, Sascha Rollié, Heiko Briesen   +4 more
openaire   +1 more source

Meniscus‐Guided Soft‐Lithographic Assembly of Grid‐Type Molecular Martensite Films for Single‐Crystal‐Like Actuation

Advanced Functional Materials, EarlyView.
A meniscus‐guided microtransfer molding strategy enables scalable fabrication of grid‐type molecular martensite films with b‐axis‐correlated preferential texture. Sequential growth across microchannel intersections creates structurally continuous grids and robust thermoelastic actuation (∼11% strain, > 50 cycles, maximum force density: 7.1 × 109 N m−3).
Sooyeon Ra, Sourabh R. Jagdale, Jin Hyeok Jang, Minwoo Jang, Kyoungtae Hwang, Taewoo Lee, Eun Hui Jeong, Soon Ho Yoon, Byung Joon Moon, Jangyup Son, Dong‐Su Lee, Sukang Bae, Jun Dong Park, Tae‐Wook Kim, Sangmin An, Sang Kyu Park   +15 more
wiley   +1 more source

Froth flotation for resources extraction from salt lake brine – A review

Desalination and Water Treatment
Salt lake brine, enriched with a variety of valuable chemical elements, is relatively simple and cost-effective for resource supply. Although froth flotation has extensive application in solid minerals separation，it is expected to reposition froth ...
Shuai Cheng, Jianhua Hou, Resalati Simayi, Ruipeng Ma, Ziyu Wang, Yingshuang Zhang   +5 more
doaj   +1 more source

Flotation separation of chalcopyrite and molybdenite by externally controlled potential method

工程科学学报, 2019
Chalcopyrite-molybdenite separation has always been a major difficulty in mineral processing. At present, chemical agents are commonly used to regulate the pulp potential.
SONG Kun, SONG Yong-sheng, ZHANG Qi-dong, LI Wen-juan, LE Guan   +4 more
doaj   +1 more source

Reconfigurable Au Nanoparticle Monolayers on Regenerated Cellulose Hydrogels: Highly Sensitive SERS Detection of Polystyrene Micro/Nanoplastics With Interpretable Deep Learning

Advanced Functional Materials, EarlyView.
A regenerated cellulose (RC) hydrogel‐based SERS substrate integrating a Marangoni‐transferred gold nanoparticle self‐assembled monolayer (Au‐SAM) is fabricated. Reswelling‐induced hotspot formation enhances polystyrene micro/nanoplastics (PS MNPs) detection in complex matrices, providing reproducible, high‐throughput SERS signals across diverse ...
Youngho Jeon, Yu‐Jin Jeon, Suji Lee, Jeseong Kim, Dae‐Hyun Jung, Jungmok You   +5 more
wiley   +1 more source

Effective separation of coal gasification fine slag: Role of classification and ultrasonication in enhancing flotation

International Journal of Mining Science and Technology
Effective separation of residual carbon and ash is the basis for the resource utilization of coal gasification fine slag (CGFS). The conventional flotation process of CGFS has the bottlenecks of low carbon recovery and high collector dosage.
Rui Han, Anning Zhou, Ningning Zhang, Zhen Li, Mengyan Cheng, Xiaoyi Chen, Tianhao Nan   +6 more
doaj   +1 more source