Results 21 to 30 of about 5,035 (104)
Gongye shui chuli, 2023 针对典型高硬度、低碳酸盐碱度的煤气化灰水直接电化学除硬效果差的问题，提出在隔膜法电化学除硬之前预补加CO2来提升除硬效果。实验首先验证了该方法的可行性，然后在不同电流-流量条件下考察了CO2补加量对电化学除硬率、除硬速率、电流效率及能耗的影响。结果表明，补加CO2能明显提升除硬效果，在5 A-5 L/h电流-流量下，当补加CO2使总无机碳含量接近总硬度时，除硬率提升至60%左右，电流效率提升至50%，除硬速率提升至470 g/（m2·h）（以CaCO3计），去除单位质量CaCO3的能耗降至13.5 kW·
朱田震 +7 more
doaj +2 more sources
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The surging demand for high‐performance NdFeB magnets has made it essential to achieve ultrahigh coercivity while minimizing the consumption of heavy rare earths. To tackle this challenge, this study proposes a Dy/Tb bilayer grain boundary diffusion strategy and systematically investigates the co‐diffusion behavior of Dy and Tb.
Rui Chang +7 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Electromagnetic wave absorption materials require high dielectric loss and excellent impedance matching performance. However, current conventional biomass‐derived electromagnetic wave absorption materials are still limited by low electrical conductivity and a single structure.
Yue Zhang +9 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Cross‐scale assembly of metal (sub) nanoparticles and/or single atoms into millimeter/nanostructured metal monolithic catalysts (Min‐SMCs) is highly appealing for sustainable water cleanup, due to energy‐efficient catalyst recyclability, high infrastructure compatibility, and low metal‐releasing risks.
Jia‐Cheng E. Yang +4 more
wiley +1 more source
Design of low-power LNA for intelligent water meters(适于智能水表的低功耗低噪声放大器设计)
Zhejiang Daxue xuebao. Lixue ban, 2013 采用交叉源耦合差分结构以及有源器件并联技术，提出了 一种适合智能水表芯片前端具有对称结构的低功耗低噪声放大器.基于标准0.35 µm CMOS工艺进行实现，PSPICE仿真测试结果表明，在2.5 V的典型电源电压和1 kHz的输入信号频率下，所提出的放大器等效输入噪声为9.1 nV • Hz-1/2，系统功耗为104 µW.具有低噪声和低功耗的特性，已达到智能水表芯片系统的工作需求.
PANLiang-liang(潘亮亮) +1 more
doaj +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT To address the demand for high‐temperature stability, broadband strong absorption, and multifunctional integration of electromagnetic wave absorbing materials in complex service environments, lightweight molybdenum disulfide (MoS2) decorated silicon carbide (SiC) nanofiber composite aerogels with a directional layered interconnected structure ...
Zhi Song +4 more
wiley +1 more source
Harnessing Trace Elements: Novel Radiosensitization Strategies for Enhanced Cancer Radiotherapy
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Radiotherapy (RT) is one of the core methods of comprehensive cancer treatment. Globally, more than 40% of cancer patients rely on radiotherapy to achieve tumor control, cure or palliative relief. However, radiation resistance, immunosuppression and normal tissue injury limit its clinical application.
Yuhuan Zhang +6 more
wiley +1 more source
Gongye shui chuli, 2018 污水处理是能耗密集型技术，为了能对污水处理过程进行合理的能耗评估和降低污水处理能耗，各国研究学者在此方面都做了大量的研究工作。文章从污水处理厂能耗现状入手，对能耗评估指标、能耗基准线的划定方法、能源效率提高办法、能源监管等几个方面进行了综述。通过分析发现，污水处理厂的能源效率通过评估和管理是可以大幅度提升的，将来还有很多值得研究的空间。
李云 +4 more
doaj +2 more sources
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The development of lightweight, high‐attenuation, and broadband carbon‐based electromagnetic wave absorbers is hindered by the intrinsic trade‐off between impedance matching and dielectric dissipation. Herein, we report a facile and scalable synthesis of N‐doped lignin‐derived interconnected porous carbon (Nx‐LIPC) via hydrogen‐bond self ...
Bin‐Peng Zhang +7 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Dielectric polymers commonly suffer from severe performance degradation above 150°C, hindering advanced power systems. Herein, we demonstrate a polyetherimide (PEI) nanocomposite that overcomes this by mimicking the gradient architecture of nacre and bamboo, incorporating a continuous vertical gradient of fluorinated boron nitride nanosheets ...
Jian Wang +8 more
wiley +1 more source