Results 21 to 30 of about 215,737 (166)

Trends of drought and flood in Zhejiang Province respond to climatic warming(浙江省汛期旱涝趋势对气候变暖的响应)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2007
近50多年来浙江省气候变化总趋势在逐渐变暖,80年代中期开始变暖明显,增幅加大.浙江省汛期各月降水量对气候变暖的响应不同:在季节转换月份5月和9月,降水量明显减小,而在夏季的降水量增加,8月尤甚.在气候变暖期,浙江省汛期旱涝事件的发生频数增加.大气环流对气候变暖的响应是:5月份,高层南亚高压偏弱偏南,中国东南部上空为平直的西风气流,引导冷空气多偏北东移,中层印缅槽的减弱导致向江南水汽输送减少,低层偏南气流远离华东,浙江省主要受单一西北干燥气流影响,降水显著偏少;8月份,青藏高压位置偏西 ...
ZHONGYuan(钟元)   +3 more
doaj   +1 more source

Drop‐Shaped Optical Microfiber Enabled Biomechanical Sensor

open access: yesAdvanced Science, EarlyView.
A novel microforce sensor based on a drop‐shaped optical microfiber is presented herein, designed to characterize the biomechanical properties of single cells and microscale living organisms, achieving a force resolution of 24 nN. Leveraging its high sensitivity, facile miniaturization, excellent flexibility, and robust mechanical stability, this ...
Yan Xu   +7 more
wiley   +1 more source

Tailored Nanogel Network Topology Enables Clinical Ultrasound‐Induced Mechanochemical Activation for In Vivo Therapy

open access: yesAngewandte Chemie, EarlyView.
The strategy of engineering nanogel network topology is developed to achieve iterative activation of mechanophores upon high‐frequency and low‐intensity ultrasound. This places the nanogel system among the systems that can respond to the ultrasound with the highest frequency and lowest intensity as well as have the fastest activation rate so far.
Helin Li   +7 more
wiley   +2 more sources

An Edible Biohybrid Platform Accomplishes In Situ Fenton‐Mediated Enteral Nanoplastics Aging and Excretion

open access: yesAdvanced Science, EarlyView.
An edible biohybrid platform triggers nanoplastics (NPs) aging and agglomeration by in situ generating hydroxyl radicals within the intestine. The enlarged NPs are unable to penetrate the intestine and are subsequently excreted. Simultaneously, probiotic biofilms reinforce the intestinal barrier.
Su Zhou   +4 more
wiley   +1 more source

Two genera and five species newly recorded in Zhejiang Province, China(浙江植物分布2新记录属和5新记录种)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2014
报道了浙江植物分布2新记录属和5新记录种,即野甘草属Scoparia L.,松香草属Silphium L.和山白前Cynanchum fordii Hemsl.,原野菟丝子Cuscuta campestris Yunck.,野甘草Scoparia dulcis L.,串叶松香草Silphium perfoliatum L.,竹节草Commelina diffusa Burm. f..凭证标本均存放于温州大学植物标本室.这些类群在浙江的发现丰富了浙江植物区系的内容,为其在我国地理分布的研究提供了基础资料.
XIONGXianhua(熊先华)   +4 more
doaj   +1 more source

Colossal Photovoltaic Current in Ferroelectric Oxide by Constructing Defect Band

open access: yesAdvanced Science, EarlyView.
Colossal photovoltaic current density of 34.36 mA/cm2 under 375 nm illumination has been achieved in the Pb‐deficient PbTiO3 film. The ultraviolet photoresponsivity surpasses that of all reported ferroelectric materials. This enhancement is attributed to the junction effect between the Pb‐deficient and non‐defective layers.
Yiran Sun   +16 more
wiley   +1 more source

A Conserved DT2‐bZIP66‐NF‐YC4 Regulatory Module Confers Drought Tolerance in Rice and Arabidopsis

open access: yesAdvanced Science, EarlyView.
This study identifies a conserved tripartiteDT2–bZIP66–NF‐YC4 transcriptional module that enhances rice drought tolerance by activating stress‐responsive genes. This regulatory complex is functionally conserved across cereals and Arabidopsis, providing promising targets for engineering drought‐resilient crops. ABSTRACT Drought stress severely restricts
Jun Shen   +18 more
wiley   +1 more source

浙江发现草鸮

open access: yes, 1983
在浙江省南部山区的松阳县赤寿公社界首村万寿山上,多次发现珍贵动物草鸮。万寿山海拔不高,但岩石陡峭、洞穴棋布,鸟鼠很多 ...
唐家明, 毛学源
core   +1 more source

Sliding Ferroelectricity Driven Spin‐Layertronics in Altermagnetic Multilayers

open access: yesAdvanced Science, EarlyView.
Integrating sliding ferroelectricity with altermagnetism enables nonvolatile electrical control of spin and layer degrees of freedom. In bilayer CuF2, interlayer translation reverses layer‐locked spin‐split bands, establishing a multifunctional “spin‐layertronic” platform.
Rui Peng   +5 more
wiley   +1 more source

活动范围对青鳉鱼(Oryzias latipes)运动模式的影响

open access: yesHaiyang yu huzhao
重尾分布现象广泛存在于自然界的各种生物运动模式之中,重尾分布现象会随环境的变化而变化。鱼类为适应生存环境,往往会选择更加高效的个体运动模式。以青鳉鱼(Oryzias latipes)为研究对象,在相同浅水条件(5 cm)下,控制其活动范围,探究青鳉鱼在不同水域面积(1.0 m×1.0 m、0.6 m×0.6 m、0.4 m×0.4 m、0.2 m×0.2 m以及0.1 m×0.1 m)条件下的运动模式。利用MATLAB软件将青鳉鱼的运动轨迹转换为具体数据,通过移动速度、移动加速度 ...
龚 晓斌   +5 more
doaj   +1 more source

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