Results 21 to 30 of about 433,820 (146)

同位素技术在内陆河水循环研究中的应用前景 [PDF]

open access: yes, 2007
介绍了同位素技术的原理,初步探讨并提出了同位素技术应用在气候变化对内陆河流域水循环影响研究中的思路和重点,主要包括水汽来源分析、区域降水线与蒸发线特征分析、氘盈余的分布特征及古气候信息的提取等方面。通过创新气候变化背景下的内陆河流域水循环变化的研究模式 ...
陶辉, 毛炜峄, 韩俊, 宋郁东
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Developmental plasticity drives converge nt shifts in phosphorus acquisition strategies towards root phosphatase activity in Moso bamboo under nitrogen addition

open access: yesFunctional Ecology, Volume 40, Issue 7, Page 2221-2236, July 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Anthropogenic nitrogen (N) deposition is a major driver of global change. However, its effects on the developmental plasticity of plant nutrient strategies remain poorly understood.
Quan Li   +11 more
wiley   +1 more source

Synergistic Enhancement of Toluene Catalytic Oxidation via Pt‐Induced Oxygen Vacancies and Heterojunction Built‐In Electric Field

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Improving catalytic activity for volatile organic compounds (VOCs) oxidation and enhancing water‐tolerance stability remain challenging in practical applications. Herein, a composite catalyst integrating Pt/CoOx‐NiOx mesoporous nanorods (MNRs) with a phenyltriethoxysilane (PhTES)‐modified surface was fabricated via a facile route for toluene ...
Jiaqin He   +13 more
wiley   +1 more source

双氧水环氧化制备环氧环己烷的方法 [PDF]

open access: yes, 2009
本发明涉及一种直接以双氧水为氧源,采用具有反应控制相转移催化特性的杂多酸盐混合物催化环己烯环氧化制取环氧环己烷的方法。将环己烯在反应控制相转移催化剂的作用下,与过氧化氢反应,通过添加剂的调节,环己烯的转化率大于96%,环氧环己烷对环己烯的选择性大于98%,反应结束后,环氧环己烷通过常压精馏分离提纯,催化剂反应结束后可分离循环使用 ...
高 爽, 张恒耘, 奚祖威, 吕 迎
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Synergizing Multi‐Chemisorption Sites and Micropore Confinement in Porous Carbon for High‐Performance Zinc‐Ion Hybrid Capacitors

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Aqueous zinc‐ion hybrid capacitors (ZICs) bridge the gap between high‐energy batteries and high‐power supercapacitors, yet their performance is fundamentally bottlenecked by the micropore confinement effect in carbon cathodes, which restricts hydrated Zn2+ transport and active site utilization.
Qian Li   +12 more
wiley   +1 more source

一种低品位热能的循环发电实验平台 [PDF]

open access: yes, 2017
本发明公开了一种低品位热能的循环发电实验平台,其在实验室中实现了采用CO2为工质的跨临界动力循环发电,有助于推进CO2跨临界动力循环技术的进一步发展。其包括导热油循环子系统、CO2循环子系统、冷却水循环子系统、发电机、负载、数据采集及控制系统。CO2循环子系统包括CO2柱塞泵、超临界加热器、CO2膨胀机、冷凝器,导热油循环子系统与超临界加热器连接,冷却水循环子系统与冷凝器连接,CO2依次流经CO2柱塞泵、超临界加热器、CO2膨胀机、冷凝器,CO2膨胀机、发电机 ...
李博, 潘利生, 魏小林, 李腾
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一种循环水系统质能综合优化方法 [PDF]

open access: yes, 2020
本发明涉及一种循环水系统质能综合优化方法,该方法针对循环水系统操作优化问题。本发明综合考虑了循环水系统运行能耗、工质的补充,涵盖了循环水系统水、热、电、风间的耦合关系,建立起用水网络计算层、循环水全系统计算层、经济目标优化层的三层迭代优化模型。计算过程采用生产过程中工艺负荷、环境等实时数据,并应用遗传模拟退火算法进行优化求解。最终得到当前生产条件下循环水系统的最优操作点,以及该系统中一整套操作数据。为循环水系统操作参数的设定提供科学依据 ...
王挺, 李继龙, 曾鹏, 陶晔
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Pre‐Established Zincophilic Na2SiO3 Decorated Array‐Like Channels to Regulate the Zn2+ Flux and Interfacial Corrosion for Dendrite‐Free Zinc Anode

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Aqueous zinc‐ion batteries (AZIBs) have attracted increasing attention in energy storage owing to their high energy density, low redox potential, and cost‐effectiveness. Nevertheless, uncontrolled dendrite accumulation, gas generation, and severe side‐reaction problems hinder the cycling lifespan, which prevents their commercial applications ...
Xiangzhong Kong   +8 more
wiley   +1 more source

一种用于循环水槽激光粒子图像测速系统的激光反射装置 [PDF]

open access: yes, 2016
本实用新型提供了一种用于循环水槽激光粒子图像测速系统的激光反射装置,包括:循环水槽,为首尾相联的回形管状结构,包括驱动流体运动的动力段,直径逐渐变粗的扩张段,弧形的整流段,以及直径一致的监测段;反射镜,倾斜地安装在所述监测段的流体排出一端;激光器,设置在所述监测段的一侧,且发出的激光经所述反射镜反射后水平地向所述监测段的流体进入方向发散。本实用新型将反射镜安装在循环水槽内,可将激光由流场下游反射至上游,辅助实现大面积尾流场的捕捉,同时能捕捉到绕流物体下方流场信息。反射镜置于流场下游较远处 ...
江文滨, 林缅, 李勇, 许雷阁
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Upcycling of Waste Polyethylene Terephthalate Plastics to Fabricate Cobalt–Nickel Metal–Organic Frameworks and Their Phosphides for Efficient Oxygen Evolution Reaction

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The urgent environmental crisis caused by polyethylene terephthalate (PET) waste necessitates efficient upcycling strategies. Herein, we establish a novel pathway to transform waste PET plastic into a high‐performance catalytic material for mediating the oxygen evolution reaction (OER). Through a one‐step hydrothermal process, waste PET serves
Xin Wang   +5 more
wiley   +1 more source

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