Results 51 to 60 of about 1,331 (240)

A simple mixed-micelle process for selective microextraction of trace Th(IV) from lanthanide matrices

Frontiers in Water
Prolonged exposure to thorium and its compounds can cause severe and irreversible damage to the bones and the kidneys, highlighting the need for its selective separation from other rare earth elements, particularly uranium.
Yasmeen G. Abou El-Reash, Faisal K. Algethami, Abdullah N. Alotaibi, M. A. Hashem, M. G. Wahba, M. A. Ismail, Basem E. Keshta, Basem E. Keshta, Ahmad Hosseini-Bandegharaei, Ahmad Hosseini-Bandegharaei   +9 more
doaj   +1 more source

Análise sistemática de reagentes e resíduos sem identificação Systematic analysis of unidentified chemicals and wastes

Química Nova, 2005
This work presents a detailed routine applied to the identification of unknown chemicals and wastes. 786 specimens were analyzed during 20 months. Unknown materials fell into three basic classes: (i) commercial chemicals without labels or illegible ones;
Júlio Carlos Afonso, Jaqueline Amorim da Silveira, Adriana de Sousa Oliveira, Rosilda Maria Gomes Lima   +3 more
doaj   +1 more source

Reconstructing Quantum Dot Surfaces via Dual‐Functional Ligand Pairing Enables Efficient Shortwave Infrared Optoelectronics

Advanced Functional Materials, EarlyView.
This work presents a ligand‐pairing strategy that reconstructs lead sulfide quantum dot surfaces for efficient short‐wave infrared optoelectronics. A low‐reactivity thiourea precursor combined with hydrobromic acid enables monodisperse and fully passivated quantum dots.
Dongeon Kim, Minjung Yang, Yunjin Lee, Gaeun Cho, Min‐Jae Si, Jaewoo Jeong, Seoryeon Jeong, Sol‐Hee Kim, Taeho Han, Seungin Jee, Byeong‐Chan Kim, Woong Kim, Seungmin Lee, Jun Hong Noh, Han Seul Kim, Yujin Jung, Se‐Woong Baek   +16 more
wiley   +1 more source

Chemical modification of brown algae Sargassum glaucescens for thorium biosorption from aqueous solutions [PDF]

مجله علوم و فنون هسته‌ای, 2015
The biosorption process of thorium in a batch system by modified brown algae Sargassum glaucescens is discussed in this paper. For this purpose, the results of biosorption on raw algae and modified by glutaraldehyde and diethylenetriamine (DETA) were ...
Alireza Keshtkar, Mohammad Amin Hassani
doaj  

Analysis of iron-rich hydrochloric acid solutions for uranium, thorium, rare-earth elements and other heavy metals

Journal of Analytical Science and Technology, 2023
A simple solvent extraction method is described for the separation of trace elements including uranium (U), thorium (Th) and rare-earth elements (REEs) from industrially processed iron-rich hydrochloric acid solutions.
Beena Sunilkumar, M. Krishnakumar, A. A. Patwardhan   +2 more
doaj   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

Advanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long, Huanyu Zhou, Jaewan Ko, Hongwei Tan, Jaemin Lim, Yanfei Zhao, Daehan Kang, Eojin Yoon, Gyeong‐Tak Go, Somin Kim, Seung‐Woo Lee, Chan‐Yul Park, Hyojun Choi, Hyeran Kim, Hyung Joong Yun, Sung Hyuk Park, Kwan Sik Park, Jeong Woo Park, Mungeun Kim, Yong Soo Cho, Ho Won Jang, Wenqiang Yang, Min Hyuk Park, Wan Ki Bae, Sebastiaan van Dijken, Joona Bang, Tae‐Woo Lee   +26 more
wiley   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Space‐Time Coding Conformal Metasurfaces for Multifrequency Beam Steering and Shaping

Advanced Materials, EarlyView.
Space‐time coding conformal metasurfaces enable dynamic wave control on curved surfaces by combining programmable spatial patterns with temporal modulation. This study shows that a single conformal aperture can independently manipulate multiple frequency components, achieving multifunctional beam shaping and steering, with implications for ...
Filippo Pepe, Lei Zhang, Yi Ning Zheng, Xiao Qing Chen, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Tie Jun Cui, Vincenzo Galdi   +8 more
wiley   +1 more source

Recovery of uranium-233 from a thorium breeding blanket by pyrochemical techniques [PDF]

, 1982
We have carefully evaluated several processes that might be suitable for uranium recovery from thorium metal, and have chosen two that hold great promise. Both are simple non-aqueous methods that can readily be performed by remote means, and both require only a few simple process steps.
Coops, M.S., Knighton, J.B.
openaire   +2 more sources

1‐D Collocated Dual‐Gradient Sensory Fibers for Comprehensive Sensing and Decoding of Complex Human Motion and Physiology

Advanced Materials, EarlyView.
Coupled materials design enables a monolithic fiber that integrates complementary sensing regimes into a single wearable strand. By preserving informative signal features across subtle physiological deformation, large body motion, and mixed mechanical inputs, the dual‐gradient architecture generates synchronized, less redundant outputs that improve ...
Yunheum Lee, Sungha Jeon, Min Kim, Joonhee Won, Jinwook Yeo, Kyunghyun Jo, Soyeon Lee, Kieun Park, Yechan Yang, Chul Kim, Gun‐Hee Lee, Seunghwa Ryu, Sungho Jo, Seongjun Park   +13 more
wiley   +1 more source