Results 41 to 50 of about 1,015,495 (167)

植物固体碳源添加对人工湿地脱氮效果的影响

open access: yesGongye shui chuli, 2018
选用芦苇为碳源,分析了经过简单处理、碱泡处理、碱热处理3种预处理方式后芦苇的静态释碳规律及其对反硝化的促进作用,在此基础上研究了碱热处理芦苇对人工湿地净化微污染水的促进作用。结果表明,碱预处理后的芦苇具有持续释放碳源的能力,进而能够持续强化系统的反硝化能力。在人工湿地系统中添加碱热处理的芦苇在不显著提高系统出水COD的前提下,显著提高了人工湿地的脱氮除磷能力,TN、TP平均去除率分别提高了39.36%、16.10%。
熊家晴   +5 more
doaj  

Optimized Design of Cu‐Ni‐Co‐Si Alloy Combining Machine Learning and Experimental Feedback

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The machine learning method was employed to accelerate alloy design, and experimental feedback was provided to enhance predictive accuracy. A Cu‐2.7Ni‐1.0Co‐0.8Si alloy with superior properties was selected using a double‐objective optimization algorithm.
Shifang Li   +3 more
wiley   +1 more source

The effects of heat shock treatment on the floral formation of cucumber excised cotyledons and the electrophoresis patterns of soluble proteins(热击处理对离体子叶培养物花芽分化与可溶性蛋白谱的影响)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2001
黄瓜幼苗胚轴的不同部位对离体子叶培养物器官分化的影响是不同的.热击处理具不同长度胚轴的黄瓜幼苗,其子叶培养物的直接花芽分化率不同,其中以单去根处理的为最高,去根+去1/2胚轴的为最低,对照和去根+去3/4胚轴的居中.结果提示胚轴中存在着与成花有关的促进和/或抑制因子,热击无根苗产生了分子量约为67〜94 kD的热激蛋白.热击处理还使中性区域蛋白质含量下降.
LIFeng-yu(李凤玉)   +2 more
doaj   +1 more source

Velocity‐Iterative Directional Annealing Enables Ultra‐Elongated Columnar Grains and Exceptional Ductility in TiAl Alloys

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT This study introduces a novel velocity‐iterative directional annealing (IDA) strategy to overcome stagnation challenges in columnar grain growth of Ti‐48Al‐2Cr‐2Nb alloys. By dynamically adjusting hot zone migration rates across iterative cycles, the IDA protocol achieved 92.2% synchronization between anisotropic α‐grain boundary (GB ...
Zedong Liu   +6 more
wiley   +1 more source

磨片与热处理工艺次序对氧化锌电阻片性能的影响

open access: yesDianci bileiqi, 2000
通过先磨片后热处理及先热处理后磨片两种不同工艺次序生产氧化锌电阻片性能的对比 ,发现采用先磨片后热处理的工艺次序对氧化锌电阻片的性能有一定的提高 ;并根据 X衍射试验结果进行了分析 ...
李宏建, 王玉平, 卢少峰
doaj  

Effect of Heterogenous Gradient Structure Induced by High Cu Content on Nanocrystallization Process and Magnetic Properties of Fe‐Based Nanocrystalline Alloys

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The pre‐existing α‐Fe crystals have important effects on the precipitation and growth of nanocrystals and finally determine the comprehensive soft magnetic properties (SMPs) of the nanocrystalline alloys (NAs). In this work, a high content of Cu elements has been added to Nanomet‐type alloys to enhance the gradient heterogeneity in order to ...
Lei Xie   +6 more
wiley   +1 more source

旋转热处理炉

open access: yes, 2015
本实用新型涉及一种旋转热处理炉,其包括加热炉、炉管、驱动炉管旋转的驱动装置,其中,所述炉管的旋转轴线与水平面呈一锐角,所述加热炉设于炉管的外部且所述加热炉与所述炉管相互独立,所述炉管的开口端露出所述加热炉并与所述驱动装置相连,所述加热炉为半开式管式炉以装卸所述炉管,所述加热炉包括多个相互独立的加热单元,每一加热单元包括加热元件和热电偶。所述旋转热处理炉中由于加热炉为半开式管式炉,因而炉管易于装卸;并且由于多个加热单元相互独立 ...
胡晨, 林旻, 闫阿儒
core  

正确处理输液器预防热原反应

open access: yesHuli yanjiu, 1988
静脉输液在临床上应用极为广泛,已成为抢救中不可缺少的一项重要措施。在输液过程中,有时出现热原反应而影响治疗,甚至引起严重后果。因此,预防热原反应已引起广大医务人员的重视。一般认为在药房制剂、供应室处理输液器及临床输液操作每个环节中任何一个环节如果处理不当,均可引起热原反应,而其中输液器的处理尤为关键。这里谨就热原的特性及其与输液器处理的关系,提出处理输液器的方法,供同志们参考。
梁碧映
doaj  

城镇污水剩余污泥生物法水解研究进展

open access: yesGongye shui chuli, 2022
城镇污水处理厂产生的剩余污泥(ES)逐渐增多,对其进行无害化处理以及资源化利用逐渐成为新挑战。生物法具有绿色环保、反应温和、成本较低等优点,在ES处理方面具有广阔的应用前景。综述了生物法水解ES的研究进展,主要介绍了生物酶法、嗜热菌法及联合处理法。首先,简述了单一生物酶对ES中蛋白质、SCOD等有机物释放的影响,比较了生物酶预处理对ES厌氧消化产气的影响,随后介绍了不同复合酶水解ES的效果。嗜热菌法解决了生物酶购置成本高的问题,介绍了嗜热菌的产酶性能及其对ES的水解效率。其次,分析了利用超声、热处理 ...
钟为章, 丁雅婷, 秦学, 李再兴
doaj  

Hybrid Flame‐Assisted Plasma‐Enhanced Chemical Vapor Deposition Strategy for Scalable and Structurally Tunable ZrO2 Thin Films

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Zirconium dioxide (ZrO2) thin films are critical materials owing to their thermal stability, mechanical durability, and optical transparency enabling applications in photonic, sensing, and electronic devices. However, achieving uniform deposition via plasma‐enhanced chemical vapor deposition (PE‐CVD) has remained challenging due to poor ...
Nour Manafikhi   +4 more
wiley   +1 more source

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