Results 81 to 90 of about 1,331 (240)

Rapid Determination of Th(IV) in Thorium Dioxide Solution by Arsenazo III

Journal of Isotopes
ThO2 can produce many nuclides after accelerator bombardment, such as Actinium-225, Radium-223, Molybdenum-99, Iodine-131, Strontium-90, etc. There are many methods for measuring heavy elements such as thorium, but most of them are complicated to operate.
ZHAO Pengfei, WU Jiuwei, WANG Yu, LI Yong, GUAN Guoying
doaj   +1 more source

Transferable Deep Reinforcement Learning With Edge‐Contour‐Depth Fusion for Autonomous Wireless Capsule Endoscopy Navigation

Advanced Science, EarlyView.
This study presents an anatomical landmark‐guided DRL framework for autonomous wireless capsule endoscopy navigation. Using a lightweight edge‐contour‐depth fusion module, it achieves over 97% coverage across diverse gastric anatomies. To ensure reliability, a two‐stage sim‐to‐real pipeline with an adaptive dynamic programming controller mitigates ...
Haoxuan Wu, Haitao Gao, Qingyang Liu, Sishen Yuan, Haiyang Fang, Mingwu Su, Baijia Liang, Yongzun Yang, Long Bai, Wenzhen Dong, Dihong Xie, Shijian Su, Jiewen Lai, Shing Shin Cheng, Zhen Li, Xiuli Zuo, Hongliang Ren   +16 more
wiley   +1 more source

Fundamentals of Thermal Transport and Energy Conversion in Ultra‐High Temperature Ceramics: From Microscale Mechanisms to Macroscopic Properties

Advanced Science, EarlyView.
This review critically examines thermal transport and radiative properties of ultra‐high temperature ceramics for hypersonic flight, advanced nuclear systems, and next‐generation energy conversion devices. It explores phonon–photon–electron interactions, microstructural engineering, thermoelectric conversion, and machine learning‐accelerated multiscale
Zhipeng Pei, Yue Li, Jiayu Xing, Yue Zhu, Ru Zhang, Huan Wu, Zihao Qin, Gang Pei, Man Li   +8 more
wiley   +1 more source

Sustainable recovery of rare Earth elements from industrial waste: A path to circular economy and environmental health

Waste Management Bulletin
Rare earth elements (REEs) play a vital role in digitalization and industrialization. Naturally occurring in bastnasite, monazite, and xenotime, REEs are primarily concentrated in China, Australia, and the USA, leading to dependence on secondary sources.
Pranav Prashant Dagwar, Syed Suffia Iqbal, Deblina Dutta   +2 more
doaj   +1 more source

Remote Magnetomechanical Neuromodulation Uncovers Therapeutic Mechanisms for Alleviating Parkinsonian Symptoms in Freely Moving Mice

Advanced Science, EarlyView.
Magnetomechanical neuromodulation using magnetic nanodiscs enables remote activation of neurons. In a hemiparkinsonian mouse model, alternating magnetic fields actuate the nanodiscs to generate torque that opens mechanosensitive ion channels within the subthalamic nucleus, thereby modulating basal ganglia motor circuitry.
Anouk Wolters, Lorenzo Signorelli, Christian Herff, Sophia Gimple, Renzo Riemens, Gunter Kenis, Kim Rijkers, Hamed Shabani, Jyh‐Jang Sun, Yasin Temel, Hans Clusmann, Danijela Gregurec, Sarah‐Anna Hescham   +12 more
wiley   +1 more source

Synchronization‐Dissipation in the Cardiorespiratory System

Advanced Science, EarlyView.
By modeling central nervous coupling and viscoelastic interactions in the cardiorespiratory system we show that synchronization produces a 10% gain in cardiac efficiency in humans. It is surmised that respiratory sinus arrhythmia improves cardiac pumping efficiency by reducing dynamic stress and power dissipation in the pulmonary vasculature.
Joshua R. Border, Alain Nogaret, Andrew Lefevre, Vishal Jain   +3 more
wiley   +1 more source

Production Technology of Medical α-emitting Radionuclide 225Ac by Irradiation of Thorium Target with Cyclotron

Yuanzineng kexue jishu
225Ac is one of the most promising and highly anticipated alpha therapeutic isotopes in the field of nuclear medicine. Currently, more than 30 225Ac targeted isotope drugs have entered clinical trials stages Ⅰ-Ⅲ worldwide.
AN Shizhong, GUAN Guoying, ZHAO Yunlong, ZHAO Pengfei, LI Yong, WANG Fei, WANG Yu, WANG Zhe, WEI Sumin
doaj   +1 more source

Synthesis and characterization of Cyanex 272-modified supeparamagnetic magnetite nanoparticles [PDF]

مجله علوم و فنون هسته‌ای, 2015
The in-situ polyethylene glycol coated superparamagnetic magnetite (Fe3O4) nanoparticles (SPMNPs) were prepared by a co-precipitation method from the acidic solutions of FeCl2.4H2O and FeCl3.6H2O, containing polyethylene glycol (PEG), using aqueous ...
Saeid Alamdarmilani, Ahmad Khodadidarban, Afshin Shahbazi   +2 more
doaj  

Data‐Driven Modeling of Composition–Processing–Microstructure Relations for Recycled Aluminum Cast Alloys

Advanced Science, EarlyView.
Interpretable machine learning reveals how composition and processing govern the formation and microstructural burden of Fe‐rich intermetallic compounds in recycled Al–Si–Fe–Mn alloys. By separating morphology selection from morphology‐conditioned burden partitioning, this framework shows that identical Fe contents can yield different intermetallic ...
Jaemin Wang, Waleed Mohammed, Dierk Raabe   +2 more
wiley   +1 more source

Purification of Actinium-225 from Thorium via Selective Precipitation

Molecules
Numerous promising cancer treatments currently in clinical trials rely on the production and purification of actinium-225 (225Ac), an actinide with alpha emissions that can kill cancer cells via targeted alpha therapy.
Steven J. Schultz, Sara L. Adelman, Guy H. Dutech, Michael E. Fassbender, Christopher D. Henning, Brian N. Long, Kristen A. Pace, Stosh A. Kozimor, Veronika Mocko, Thomas E. Shaw   +9 more
doaj   +1 more source