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Results for “"Wei Xu"”

21+ results

Towards 6G wireless communication networks: vision, enabling technologies, and new paradigm shifts

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Xiaohu You, Cheng‐Xiang Wang, Jie Huang, Xiqi Gao et al.

Journal: Science China Information SciencesYear: 2020Citations: 1925

Abstract The fifth generation (5G) wireless communication networks are being deployed worldwide from 2020 and more capabilities are in the process of being standardized, such as mass connectivity, ultra-reliability, and guaranteed low latency. However, 5G will not meet all requirements of the future...

Physical SciencesEngineeringElectrical and Electronic EngineeringOpen Access
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Epitaxial growth of wafer-scale molybdenum disulfide semiconductor single crystals on sapphire

Verified

Taotao Li, Wei Guo, Liang Ma, Weisheng Li et al.

Journal: Nature NanotechnologyYear: 2021Citations: 784

Two-dimensional (2D) semiconductors, in particular transition metal dichalcogenides (TMDCs), have attracted great interest in extending Moore's law beyond silicon 1-3 . However, despite extensive efforts 4-25 , the growth of wafer-scale TMDC single crystals on scalable and industry-compatible substr...

Physical SciencesMaterials ScienceMaterials Chemistry
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Optical manipulation from the microscale to the nanoscale: fundamentals, advances and prospects

Verified

Dongliang Gao, Weiqiang Ding, M. Nieto‐Vesperinas, Xumin Ding et al.

Journal: Light Science & ApplicationsYear: 2017Citations: 621

Since the invention of optical tweezers, optical manipulation has advanced significantly in scientific areas such as atomic physics, optics and biological science. Especially in the past decade, numerous optical beams and nanoscale devices have been proposed to mechanically act on nanoparticles in i...

Physical SciencesPhysics and AstronomyAtomic and Molecular Physics, and OpticsOpen Access
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Two‐Dimensional Transition Metal Carbides and Nitrides (MXenes): Synthesis, Properties, and Electrochemical Energy Storage Applications

Verified

Chuanfang Zhang, Yonglu Ma, Xuetao Zhang, Sina Abdolhosseinzadeh et al.

Journal: Energy & environment materialsYear: 2019Citations: 580

A family of 2D transition metal carbides and nitrides known as MXenes has received increasing attention since the discovery of Ti 3 C 2 in 2011. To date, about 30 different MXenes with well‐defined structures and properties have been synthesized, and many more are theoretically predicted to exist. D...

Physical SciencesMaterials ScienceMaterials ChemistryOpen Access
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Approaching the quantum limit in two-dimensional semiconductor contacts

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Weisheng Li, Xiaoshu Gong, Zhihao Yu, Liang Ma et al.

Journal: NatureYear: 2023Citations: 565

The development of next-generation electronics requires scaling of channel material thickness down to the two-dimensional limit while maintaining ultralow contact resistance 1,2 . Transition-metal dichalcogenides can sustain transistor scaling to the end of roadmap, but despite a myriad of efforts, ...

Physical SciencesMaterials ScienceMaterials Chemistry
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Meta-SR: A Magnification-Arbitrary Network for Super-Resolution

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Xuecai Hu, Haoyuan Mu, Xiangyu Zhang, Zilei Wang et al.

Year: 2019Citations: 503

Recent research on super-resolution has achieved great success due to the development of deep convolutional neural networks (DCNNs). However, super-resolution of arbitrary scale factor has been ignored for a long time. Most previous researchers regard super-resolution of differentscale factors as in...

Physical SciencesComputer ScienceComputer Vision and Pattern Recognition
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Super-elastic ferroelectric single-crystal membrane with continuous electric dipole rotation

Verified

Guohua Dong, Suzhi Li, Mouteng Yao, Ziyao Zhou et al.

Journal: ScienceYear: 2019Citations: 462

Flexible ferroelectrics High-quality ferroelectric materials, which polarize in response to an electric field, are usually oxides that crack when bent. Dong et al. found that high-quality membranes of barium titanate are surprisingly flexible and super-elastic. These films accommodate large strains ...

Physical SciencesMaterials ScienceMaterials Chemistry
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Uniform nucleation and epitaxy of bilayer molybdenum disulfide on sapphire

Verified

Lei Liu, Taotao Li, Liang Ma, Weisheng Li et al.

Journal: NatureYear: 2022Citations: 461

Two-dimensional transition-metal dichalcogenides (TMDs) are of interest for beyond-silicon electronics 1,2 . It has been suggested that bilayer TMDs, which combine good electrostatic control, smaller bandgap and higher mobility than monolayers, could potentially provide improvements in the energy-de...

Physical SciencesMaterials ScienceMaterials Chemistry
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Structural Color Materials for Optical Anticounterfeiting

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Wei Hong, Zhongke Yuan, Xudong Chen

Journal: SmallYear: 2020Citations: 451

Abstract The counterfeiting of goods is growing worldwide, affecting practically any marketable item ranging from consumer goods to human health. Anticounterfeiting is essential for authentication, currency, and security. Anticounterfeiting tags based on structural color materials have enjoyed world...

Physical SciencesMaterials ScienceMaterials Chemistry
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Availability, affordability, and consumption of fruits and vegetables in 18 countries across income levels: findings from the Prospective Urban Rural Epidemiology (PURE) study

Verified

Victoria Miller, Salim Yusuf, Clara K Chow, Mahshid Dehghan et al.

Journal: The Lancet Global HealthYear: 2016Citations: 443

BACKGROUND: Several international guidelines recommend the consumption of two servings of fruits and three servings of vegetables per day, but their intake is thought to be low worldwide. We aimed to determine the extent to which such low intake is related to availability and affordability. METHODS:...

Health SciencesHealth ProfessionsGeneral Health ProfessionsOpen Access
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High‐Quality Cs<sub>2</sub>AgBiBr<sub>6</sub> Double Perovskite Film for Lead‐Free Inverted Planar Heterojunction Solar Cells with 2.2 % Efficiency

Verified

Weiyin Gao, Chenxin Ran, Jun Xi, Bo Jiao et al.

Journal: ChemPhysChemYear: 2018Citations: 423

Abstract All‐inorganic double‐metal perovskite materials have recently gained much attention due to their three dimensionality (3D) and non‐toxic nature to replace lead‐based perovskite materials. Among all those double perovskite materials, theoretical works have demonstrated that Cs 2 AgBiBr 6 sho...

Physical SciencesEngineeringElectrical and Electronic Engineering
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Trans-ancestry genome-wide association study identifies 12 genetic loci influencing blood pressure and implicates a role for DNA methylation

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Norihiro Kato, CARDIo GRAMplusCD, LifeLines Cohort Study, Marie Loh et al.

Journal: Nature GeneticsYear: 2015Citations: 375

We carried out a trans-ancestry genome-wide association and replication study of blood pressure phenotypes among up to 320,251 individuals of East Asian, European and South Asian ancestry. We find genetic variants at 12 new loci to be associated with blood pressure (P = 3.9 × 10−11 to 5.0 × 10−21). ...

Life SciencesBiochemistry, Genetics and Molecular BiologyGeneticsOpen Access
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High-efficiency and thermally stable FACsPbI3 perovskite photovoltaics

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Saisai Li, Yuanzhi Jiang, Jian Xu, Di Wang et al.

Journal: NatureYear: 2024Citations: 317

α-FA 1-x Cs x PbI 3 is a promising absorbent material for efficient and stable perovskite solar cells (PSCs) 1,2 . However, the most efficient α-FA 1-x Cs x PbI 3 PSCs require the inclusion of the additive methylammonium chloride 3,4 , which generates volatile organic residues (methylammonium) that ...

Physical SciencesEngineeringElectrical and Electronic Engineering
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Using support vector machine models for crash injury severity analysis

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Zhibin Li, Pan Liu, Wei Wang, Chengcheng Xu

Journal: Accident Analysis & PreventionYear: 2011Citations: 310

The study presented in this paper investigated the possibility of using support vector machine (SVM) models for crash injury severity analysis. Based on crash data collected at 326 freeway diverge areas, a SVM model was developed for predicting the injury severity associated with individual crashes....

Physical SciencesEngineeringSafety, Risk, Reliability and Quality
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Modulating Electronic Structure of Metal‐Organic Framework for Efficient Electrocatalytic Oxygen Evolution

Verified

Ziqian Xue, Yinle Li, Yawei Zhang, Wei Geng et al.

Journal: Advanced Energy MaterialsYear: 2018Citations: 299

Abstract Exploring effective electrocatalysts for oxygen evolution reaction (OER) is a crucial requirement of many energy storage and conversion systems, involving fuel cells, water splitting, and metal–air batteries. Herein, a heterogeneity metal‐organic framework (MOF) is prepared by the assemblin...

Physical SciencesEnergyRenewable Energy, Sustainability and the Environment
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Liquid crystal-templated chiral nanomaterials: from chiral plasmonics to circularly polarized luminescence

Verified

Xuan Zhang, Yiyi Xu, Cristian Valenzuela, Xinfang Zhang et al.

Journal: Light Science & ApplicationsYear: 2022Citations: 258

Chiral nanomaterials with intrinsic chirality or spatial asymmetry at the nanoscale are currently in the limelight of both fundamental research and diverse important technological applications due to their unprecedented physicochemical characteristics such as intense light-matter interactions, enhan...

Physical SciencesMaterials ScienceElectronic, Optical and Magnetic MaterialsOpen Access
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Rolling back human pluripotent stem cells to an eight-cell embryo-like stage

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Md. Abdul Mazid, Carl Ward, Zhiwei Luo, Chuanyu Liu et al.

Journal: NatureYear: 2022Citations: 241

After fertilization, the quiescent zygote experiences a burst of genome activation that initiates a short-lived totipotent state. Understanding the process of totipotency in human cells would have broad applications. However, in contrast to in mice 1,2 , demonstration of the time of zygotic genome a...

Life SciencesBiochemistry, Genetics and Molecular BiologyMolecular Biology
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Cytotoxic effects of polystyrene nanoplastics with different surface functionalization on human HepG2 cells

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Yixin He, Jing Li, Jiancheng Chen, Xiaojun Miao et al.

Journal: The Science of The Total EnvironmentYear: 2020Citations: 217

Nanoplastics in the environment lead to the human exposure to these particles. However, the consequences of this exposure are not yet fully understood. Here, the cytotoxicity of polystyrene nanoparticles (PS-NPs) with a uniform size (50 nm) but distinct surface functionalization (pristine polystyren...

Physical SciencesEnvironmental SciencePollution
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Availability and affordability of blood pressure-lowering medicines and the effect on blood pressure control in high-income, middle-income, and low-income countries: an analysis of the PURE study data

Verified

Marjan Walli-Attaei, Rasha Khatib, Martin McKee, Scott A. Lear et al.

Journal: The Lancet Public HealthYear: 2017Citations: 214

BACKGROUND: Hypertension is considered the most important risk factor for cardiovascular diseases, but its control is poor worldwide. We aimed to assess the availability and affordability of blood pressure-lowering medicines, and the association with use of these medicines and blood pressure control...

Social SciencesEconomics, Econometrics and FinanceEconomics and EconometricsOpen Access
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Direct Z-scheme CuInS2/Bi2MoO6 heterostructure for enhanced photocatalytic degradation of tetracycline under visible light

Verified

Jingru Guo, Liping Wang, Xiao Wei, Zeid A. ALOthman et al.

Journal: Journal of Hazardous MaterialsYear: 2021Citations: 210

The construction of direct Z-scheme heterojunctions with high photocatalytic degradation ability is a theme of importance in both environmental and materials sciences, but still retains many unresolved challenges. In this article, we report the construction of Z-scheme CuInS2/Bi2MoO6 heterostructure...

Physical SciencesEnergyRenewable Energy, Sustainability and the Environment
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