Results 81 to 90 of about 1,114,971 (312)

Two‐Way Shape Memory Alloy and Polymer Composite Hybrid Smart Actuator With High Speed, Accuracy, and Reversible Deformation

open access: yesAdvanced Functional Materials, EarlyView.
Tailored thermo‐mechanical properties of shape memory polymer composites enable large reversible deformation as well as high actuation speed. Moreover, a structural design with curvature in the transverse direction achieves sub‐second actuation on heating and a larger recovery ratio on cooling. Finally, these newly developed smart two‐way actuators can
Dajeong Kang   +6 more
wiley   +1 more source

Comparative Study on Differences in Asphalt Pavement Design between China and Southern Africa

open access: yesZhongwai Gonglu
To facilitate the successful implementation of projects in the Southern Africa region and promote the application and internationalization of China’s standards, this study compared the asphalt pavement design systems, construction materials, design ...
WANG Qing   +6 more
doaj   +1 more source

Voices from the diaspora: changing hierarchies and dynamics of Chinese multilingualism [PDF]

open access: yes, 2010
The so-called Chinese diasporas, i.e. Chinese communities outside Greater China (China, Hong Kong, Macau, and Taiwan), have traditionally been dialect dominant; that is, the vast majority of Chinese immigrants are speakers of (especially Southern ...
Li, Wei, Zhu, Hua
core   +1 more source

Nucleation‐Controlled Reconstruction of CuOx for Selective CO2 Electroreduction

open access: yesAdvanced Functional Materials, EarlyView.
The ratio of oxygen vacancies (Ov) and exposed Cu2O (111)/(200) of CuOx precatalyst is modulated by nucleation control of Cu(OH)2 precursor. Low Ov ratio and high ratio of Cu2O (111)/(200) in slow‐nucleated CuOx reconstructs to high‐coordinated oxide‐derived copper (OD‐Cu) during electrochemical CO2 reduction reaction (CO2RR) and exhibits enhanced ...
Ying Ying Ch'ng   +14 more
wiley   +1 more source

Amplification of the Signal-to-Noise Ratio in Cosmic Ray Maps Using the Mexican Hat Wavelet Family

open access: yes, 2011
In this work we analyze the effect of smoothing maps containing arrival directions of cosmic rays with a gaussian kernel and kernels of the mexican hat wavelets of orders 1, 2 and 3.
Batista, Rafael Alves   +2 more
core   +1 more source

In Situ Amidation‐Derived Interfacial Modulation for Homogeneous Ultra‐High Nanoparticle Loading Toward Robust and Flexible Piezoelectric Composites

open access: yesAdvanced Functional Materials, EarlyView.
Synergistic interfacial strategy between inorganic ceramic fillers and polymer chains effectively inhibit particle aggregation and interfacial incompatibility. complex covalent and non‐covalent interfacial interactions promote superior uniformity, ultra‐high ceramic filler loading, and strong grain‐to‐grain connectivity, thereby enabling the ...
HakSu Jang   +20 more
wiley   +1 more source

Skillful seasonal predictions of winter precipitation over southern China

open access: yesEnvironmental Research Letters, 2017
Southern China experiences large year-to-year variability in the amount of winter precipitation, which can result in severe social and economic impacts.
Bo Lu   +6 more
doaj   +1 more source

Six new species of Integripalpia (Trichoptera) from southern China [PDF]

open access: yes, 2011
Six new species ofTrichoptera are described and figured, belonging to the families Goeridae and Leptoceridae. The goerid species are Goera baishanzuensis new species and Goera recta new species.
Morse, John C., Yang, Lianfang
core  

Atomic‐Level Ionic Displacement Polarization Enhanced Piezocatalytic Hydrogen Evolution in Covalent Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
Two isomorphic COFs were synthesized and compared, including an amphoteric COF (SQ‐TAPT) and a neutral COF (PDA‐TAPT). The ionic bonds in SQ‐TAPT introduce more Born effective charges, thereby enhancing its ionic displacement polarization. Experimental and theoretical calculations demonstrated that SQ‐TAPT exhibited higher polarity and stronger ...
Ge Yan   +12 more
wiley   +1 more source

Subseasonal Influences of Teleconnection Patterns on the Boreal Wintertime Surface Air Temperature over Southern China as Revealed from Three Reanalysis Datasets

open access: yesAtmosphere, 2019
The daily fields from three reanalysis datasets are utilized to explore the subseasonal influence of teleconnection patterns on the surface air temperature (SAT) over southern China.
Ning Shi   +3 more
doaj   +1 more source

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