Results 21 to 30 of about 9,282 (191)
Rare Metals, EarlyView.ABSTRACT In recent years, the field of magnetic materials has witnessed a paradigm shift from single‐function applications to multifunctional integration, driven by the growing demand for smart materials in advanced technologies. Among various magnetic systems, La(Fe, Si/Al)13‐series materials have emerged as particularly promising candidates due to ...
Irfan Liaquat +2 more
wiley +1 more source
, 2009 荒漠对气候变化具有高度敏感性,深刻认识和量化非生物因子对荒漠生态系统土壤呼吸的影响具有重要意义。采用自动CO2通量系统(Li-8100)监测了梭梭(Haloxylon ammodendron)、假木贼(Anabasis aphylla)和盐穗木(Halostachys caspica)群落生长季土壤呼吸及温度、土壤含水量等,深入分析了水热因子对土壤呼吸的影响。土壤呼吸具有不对称的日格局,最小值出现在8:00,最大值在12:00～14:00。土壤呼吸的季节格局与气温变化基本同步,最小值在生长季末期(10月)
张丽华 +3 more
core
Optimizing CuO on 3D Ordered Macroporous CeO2 for CO Oxidation in Rich Hydrogen
Rare Metals, EarlyView.ABSTRACT CO preferential oxidation (CO‐PROX) in rich H2 is considered a feasible strategy to solve CO poisoning for fuel cells, but obtaining good activity at low temperatures is still a challenge. Herein, three‐dimensional ordered macroporous (3DOM) CuO/CeO2 catalysts were fabricated by a templating approach, with the metal–support interaction (MSI ...
Xiaohua Chen +7 more
wiley +1 more source
A renew cognition of coking mechanism: Proposing the “Structure Derivation Coking Mechanism” [PDF]
Understanding the coal properties and investigating the coking mechanism is essential to develop fine coal blending coking technology. The traditional coking mechanism explains the phenomenon of thermoplastic and caking properties in the absence of a ...
Beibei CUI +3 more
core +1 more source
Rare Metals, EarlyView.ABSTRACT Cost‐effective and efficient non‐noble‐metal catalysts for selective lignin hydrogenolysis remain elusive, representing a significant challenge in biorefinery. Here, we prepared a nitrogen‐doped carbon supported CoNi bimetallic catalyst, which was successfully derived from zeolitic imidazolate framework (ZIF) via high‐temperature pyrolysis ...
Xingwei Luo +3 more
wiley +1 more source
Experimental Study on the Adsorption of Heavy Metal Ions in Wastewater by Modified Bentonite [PDF]
This is an article in the field of ceramics and composites. In order to study the adsorption effect of modified bentonite on heavy metal ions in sewage, the effects of pH value, initial concentration, time, solid-liquid ratio, temperature and particle ...
Chao SUN +3 more
core +1 more source
High‐Brightness Delayed Imaging Realized by Embedding Zinc Gallate Nanocrystals Into Glass
Rare Metals, EarlyView.ABSTRACT X‐ray delayed imaging technology leverages an “irradiation‐storage‐thermally stimulated readout” mode, demonstrating unique advantages in intermittent monitoring scenarios such as high‐temperature/high‐radiation environments. This typically requires materials combining abundant carrier‐trapping energy levels with structural thermostability ...
Jun‐Xiao Wu +6 more
wiley +1 more source
Investigations of characteristics and applications of chirped and phase-shifted fiber Bragg gratings [PDF]
, 2008 相移光纤光栅是指在光纤光栅的某些点，通过采用一些方法破坏其周期的连续性而得到的，这些不连续的连接会产生相移。目前所研究的相移光纤光栅仍停留在均匀Bragg光栅上引入相移点，而本文研究的啁啾相移光纤光栅是在啁啾光栅上引入相移点，并与普通相移光纤光栅的光谱特性进行了比较。啁啾相移光纤光栅不仅具有普通相移光纤光栅的一些重要的特征，而且其反射带宽和透射窗的带宽可以根据需要在很宽的范围设计。本文的工作对设计新型啁啾相移光纤光栅器件提供了理论依据。 第一章综述了光纤光栅的发展背景、分类和制作方法 ...
康赟
core
<原著>病院で使用中のネブライザーの細菌汚染の実態 [PDF]
, 2010 病院で使用中のコンプレッサー型ネブライザー34 台,超音波ネブライザー5 台について細菌汚染に関する調査を行った。コンプレッサー型ネブライザーの連結管については調査した5 病院のすべての病院で再生利用を行っており,嘴管の洗浄は3 病院で食器洗浄機を使用していた。細菌汚染調査を行ったところ,コンプレッサー型ネブライザーの連結管から5 台(15%),エアロゾルから11 台(32%)に一般細菌が検出された。超音波ネブライザーでは作用槽から9 台(100%),薬液槽から7 台(78%),エアロゾルから6 台 ...
河合, 悦子, 田辺, 文憲
core +1 more source
Experimental research and industrial application of heat injection-enhanced coalbed methane extraction [PDF]
, 2022 As the main clean energy in coal seams, the efficient extraction and utilization of coalbed methane (CBM) will help to improve resource utilization and coal mine safety production.
Dong ZHOU +3 more
core +1 more source