Results 71 to 80 of about 32,112 (136)
ABSTRACT The central challenge in photocatalysis is to direct photogenerated electrons and holes toward the simultaneous and efficient production of hydrogen and value‐added chemicals. To address the pronounced charge recombination and sluggish surface kinetics of ZnIn2S4 nanoflowers, we construct a ternary photocatalyst synergistically decorated with ...
Xue Men, Haiou Liang, Man Zhang, Jie Bai
wiley +1 more source
原子核在俘获一个中子以后,形成复核并处于激发态,在很短的时间内发射出级联γ射线而退激。很多激发态的寿命的特征时间~10-13秒.这一特征时间与MeV能量复核的慢化时间在同一数量级内,因而复核的衰变就会影响复核的运动,即处于不同慢化阶段的运动复核其发射的γ射线的Doppler位移将不同.这就是复核γ谱的Doppler展宽.Doppler展宽的γ谱形与复核的衰变常数有关,因而复核γ谱实际上记录了激发态的衰变特性.利用这一事实便可从复核γ谱上获得复合核寿命的资料.然而目前这一方法只能对寿命的数量级进行估计 ...
罗正明, 夏宜君
doaj
探究矿山废弃地弃渣与农田土复配后土壤的水分蒸发特性,以及覆盖物添加对水分蒸发的影响,对矿山恢复中土壤水分管理和改善具有实际意义。以石灰岩矿山废弃地现场的弃渣和附近农田土为复配材料,设置0∶10(T1),3∶7(T2),5∶5(T3),7∶3(T4),10∶0(T5)体积比例,在野外条件下采用土柱法模拟土壤水分蒸发过程,探究复配比例对土壤水分蒸发的影响以及不同覆盖物的保水性能。结果表明:(1)试验前和试验后表层复配土壤含水量均表现为T1>T2>T3>T4>T5 ...
王佳欢 +5 more
doaj
ABSTRACT The pollution caused by antibiotics to aquatic ecosystems is becoming increasingly serious, thus more effective treatment methods are urgently required. Although the photocatalytic degradation behavior of tetracycline (TC) is relatively well understood, sulfamethoxazole (SMZ), an emerging pollutant originating from large‐scale livestock ...
Yihang Yang +6 more
wiley +1 more source
Biomass‐Derived Laser‐Induced Graphene: From Precursor Chemistry to Device Integration
ABSTRACT Laser direct writing provides a mask‐free route for converting suitable carbon‐containing precursors into patterned, porous, and conductive laser‐induced graphene (LIG) networks. Although LIG was initially demonstrated mainly using aromatic synthetic polymers, such as polyimide, biomass precursors introduce renewable feedstocks with highly ...
Wanjun Yin +10 more
wiley +1 more source
肾病综合症(简称NS)是儿科泌尿系统中较常见的疾病,其发病占第二位.近40年来,糖皮质激素一直是治疗小儿肾病综合症首选药物,多数患儿需长期服药治疗,临床上复发者较多.经过对20例小儿肾病综合症长期治疗的家庭护理调查,认为复发的原因除单纯激素治疗因素外,还与患儿家庭治疗、生活管理及家长对该病知识的了解程度有密切关系.提示了加强患儿院外治疗护理是维持住院疗效,促进患儿早日康复,防止复发的重要措施。 1 调查资料 我们对1990年以来经住院治疗临床症状缓解而出院后继续院外巩固治疗的20名患儿进行了随访调查.
樊小玲
doaj
ABSTRACT Magnetic particles coated with carbon shells have been considered as promising electromagnetic wave absorption materials with antibacterial features. However, how to precisely control the monodispersed magnetic nanoparticles on a carbon matrix to manipulate impedance matching and antibacterial performances is still a key challenge.
Xiaofei Li +10 more
wiley +1 more source
Insights for conservation from the Ecological Knowledge Games project
Abstract Environmental conservation research requires robust methods for collecting large‐scale behavioral data and engaging diverse stakeholders in decision‐making processes. We (Y.P., A.B.D., and N.B.) created EcoKnowGames (Ecological Knowledge Games), a transdisciplinary project that develops knowledge games for conservation science and data ...
Yuan Pan +4 more
wiley +1 more source
Scientists’ warning on the global destruction of rock outcrop ecosystems
Abstract Rock outcrops are geological formations that harbor a highly specialized biota adapted to harsh environmental conditions that differ from their surrounding landscapes. They are globally distributed, especially in old, highly weathered landscapes, and can function as habitat islands containing high levels of endemism and distinct evolutionary ...
Luiza F. A. de Paula +19 more
wiley +1 more source
Modeling seed germination data to meet biodiversity conservation needs in the Mediterranean
Workflow to assess the availability and quality of germination data and assign species' thermal risk in the Mediterranean. (a) Assessment of data availability, including the phylogenetic distribution of the number of records (i.e. available germination data); (b) data quality assessment; and (c) assignment of climate risk categories for species that ...
Diana María Cruz‐Tejada +2 more
wiley +1 more source

