Wyniki wyszukiwania dla: Heng Liu

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Effect of Bipyridines on Catalytic Oxygen Reduction by Oxamidato‐Bridged Dicopper(II) Complexes

Hao‐Cheng Liu, Shuai‐Kang Li, Zi‐Heng Liu, Chang Liu, więcej

Applied Organometallic Chemistry > 38 > 11 > n/a - n/a

The oxygen reduction reaction (ORR) has a crucial impact on the energy conversion efficiency and the performance of fuel cells, it is urgent to deliver low‐cost efficient ORR catalysts for the aim to scale up the utilization of fuel cells. In this study, three oxamidate copper(II) complexes [Cu₂(trans‐L)(H₂O)₂(ClO₄)₂]·2H₂O (Cuox), [Cu₂(cis‐L)(bpy)(ClO₄)₂]·CH₃OH (Cuoxbpy), and [Cu₂(cis‐L)(mebpy)(ClO...

artykuł

Enhanced Thermal and Photostability of Perovskite Solar Cells by a Multifunctional Eu (III) Trifluoromethanesulfonate Additive

Heng Liu, Yueyue Gao, Fuzong Xu, Xuechun Zhang, więcej

Advanced Functional Materials > 34 > 41 > n/a - n/a

Perovskite solar cells (PSCs) have witnessed a meteoric rise in device performance. However, maintaining photostability, particularly under thermal stress, remains a challenge due to defect formation in the perovskite layer. This study introduces europium (III) trifluoromethanesulfonate [Eu(OTF)₃] as a multifunctional additive in two‐step processed perovskite films, significantly improving the performance...

artykuł

Direct Observations of Spontaneous In‐Plane Electronic Polarization in 2D Te Films

Zhi‐Hao Zhang, Lian‐Zhi Yang, Hao‐Jun Qin, Wen‐Ao Liao, więcej

Advanced Materials > 36 > 40 > n/a - n/a

Single‐element polarization in low dimensions is fascinating for constructing next‐generation nanoelectronics with multiple functionalities, yet remains difficult to access with satisfactory performance. Here, spectroscopic evidences are presented for the spontaneous electronic polarization in tellurium (Te) films thinned down to bilayer, characterized by low‐temperature scanning tunneling microscopy/spectroscopy...

artykuł

Roles of osteocalcin in the central nervous system

Xiao‐Shan Qi, Xin He, Ying Peng, Xing‐Hong He, więcej

CNS Neuroscience & Therapeutics > 30 > 9 > n/a - n/a

Background Bone‐derived protein osteocalcin, which has beneficial effects on brain function, may be a future research direction for neurological disorders. A growing body of evidence suggests a link between osteocalcin and neurological disorders, but the exact relationship is contradictory and unclear. Scope of Review The aim of this review is to summarize the current research on the interaction...

artykuł

DNA damage induced PARP‐1 overactivation confers paclitaxel‐induced neuropathic pain by regulating mitochondrial oxidative metabolism

Meng‐meng Ge, Jun‐jie Hu, Ya‐qun Zhou, Yu‐ke Tian, więcej

CNS Neuroscience & Therapeutics > 30 > 9 > n/a - n/a

Aims Poly (ADP‐ribose) polymerase (PARP) has been extensively investigated in human cancers. Recent studies verified that current available PARP inhibitors (Olaparib or Veliparib) provided clinical palliation of clinical patients suffering from paclitaxel‐induced neuropathic pain (PINP). However, the underlying mechanism of PARP overactivation in the development of PINP remains to be investigated...

artykuł

Insights Into Preaggregation Control of Y‐Series Nonfullerene Acceptors in Liquid State for Highly Efficient Binary Organic Solar Cells

Dingqin Hu, Hua Tang, Chen Chen, Peihao Huang, więcej

Advanced Materials > 36 > 30 > n/a - n/a

Leveraging breakthroughs in Y‐series nonfullerene acceptors (NFAs), organic solar cells (OSCs) have achieved impressive power conversion efficiencies (PCEs) exceeding 19%. However, progress in advancing OSCs has decelerated due to constraints in realizing the full potential of the Y‐series NFAs. Herein, a simple yet effective solid additive‐induced preaggregation control method employing 2‐chloro‐5‐iodopyridine...

artykuł

News sentiment and investment efficiency: Evidence from China

Yuan‐Teng Hsu, Min Hua, Heng Liu, Qingren Wang

European Financial Management > 30 > 3 > 1587 - 1617

This study investigates the impact of media sentiment on firms' investment efficiency in the Chinese market during 2007–2017. We find that increased media sentiment can lead to overinvestment and thus distort investment efficiency, but it has no significant effect on underinvestment. Further, mediation analysis shows that financing constraints mediates the media sentiment effects on overinvestment...

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A Doping‐Induced SrCo_0.4Fe_0.6O₃/CoFe₂O₄ Nanocomposite for Efficient Oxygen Evolution in Alkaline Media

Heng Liu, Yuan Wang, Pengfei Tan, Egon C. dos Santos, więcej

Small > 20 > 21 > n/a - n/a

Perovskite and spinel oxides are promising alternatives to noble metal‐based electrocatalysts for oxygen evolution reaction (OER). Herein, a novel perovskite/spinel nanocomposite comprised of SrCo_0.4Fe_0.6O₃ and CoFe₂O₄ (SCF/CF) is prepared through a simple one‐step method that incorporates iron doping into a SrCoO_3‐_δ matrix, circumventing complex fabrication processes typical of these materials. At...

artykuł

Steering CO₂ Electroreduction to C₂₊ Products via Enhancing Localized *CO Coverage and Local Pressure in Conical Cavity

Congcong Li, Tingting Zhang, Heng Liu, Zhongyuan Guo, więcej

Advanced Materials > 36 > 18 > n/a - n/a

The electrochemical carbon dioxide (CO₂) reduction reaction (CO₂RR) involves a multistep proton‐coupled electron transfer (PCET) process that generates a variety of intermediates, making it challenging to transform them into target products with high activity and selectivity. Here, a catalyst featuring a nanosheet‐stacked sphere structure with numerous open and deep conical cavities (OD‐CCs) is reported...

artykuł

Adaptive fault‐tolerant platooning control for nonlinear homogeneous multiple autonomous vehicles under unreliable communication networks

Xin Wang, Ju H. Park, Heng Liu, Xian Zhang

International Journal of Robust and Nonlinear Control > 34 > 8 > 5270 - 5288

This article presents a fault‐tolerant platooning control algorithm for a class of nonlinear homogeneous multi‐vehicle systems under unreliable network communication environment. The considered types of actuator failures in individual vehicle are loss‐in‐effectiveness, and bias faults. Suppose the communication network among vehicles is here described as a switching graph subject to intermittent communications...

artykuł

B‐Site Co‐Doping Coupled with Additive Passivation Pushes the Efficiency of Pb–Sn Mixed Inorganic Perovskite Solar Cells to Over 17%

Weihai Zhang, Heng Liu, Yating Qu, Jieshun Cui, więcej

Advanced Materials > 36 > 14 > n/a - n/a

Pb–Sn mixed inorganic perovskite solar cells (PSCs) have garnered increasing interest as a viable solution to mitigate the thermal instability and lead toxicity of hybrid lead‐based PSCs. However, the relatively poor structural stability and low device efficiency hinder its further development. Herein, high‐performance manganese (Mn)‐doped Pb–Sn–Mn‐based inorganic perovskite solar cells (PSCs) are...

artykuł

Two‐Dimensional Conjugated Metal‐Organic Framework/Graphene π–π Stacked Heterostructures for Ultrafast Photonics

Jiahao Chen, Yingtian Xu, Yang Liu, Heng Liu, więcej

Advanced Functional Materials > 34 > 12 > n/a - n/a

2D conjugated metal‐organic frameworks (MOFs) with high in‐plane‐π‐conjugation are attracting significant attention in various fields owing to their outstanding electrical transport property, substantial specific surface areas, and tunable structures. However, their potential in ultrafast photonics has not been extensively explored. Herein, 2D conjugated Ni₃(HITP)₂ metal‐organic framework (MOF) and...

artykuł

Coopetition relations, suppliers' effectuation, and manufacturers' green management: Evidence from China

Liang Wu, Heng Liu, Sheng Liu

Corporate Social Responsibility and Environmental Management > 31 > 2 > 1303 - 1322

The coopetition perspective proposes that a firm's value creation relies on its ability to manage both cooperation and competition in supply chains. Recent theorizing in green supply chain management suggests that critical sustainability management practices may be affected by the coopetition relations between manufacturers and suppliers. We extend to study the coopetition perspective by verifying...

artykuł

Structure of brain grey and white matter in infants with spastic cerebral palsy and periventricular white matter injury

Chengxiang Liu, Ying Peng, Yanli Yang, Pengyu Li, więcej

Developmental Medicine & Child Neurology > 66 > 4 > 514 - 522

Aim To investigate the possible covariation of grey matter volume (GMV) and white matter fractional anisotropy in infants with spastic cerebral palsy (CP) and periventricular white matter injury. Method Thirty‐nine infants with spastic CP and 25 typically developing controls underwent structural magnetic resonance imaging and diffusion tensor imaging. Multimodal canonical correlation analysis with...

artykuł

Cation‐Deficient Perovskites Greatly Enhance the Electrocatalytic Activity for Oxygen Reduction Reaction

Qun Li, Di Zhang, Jiabin Wu, Simin Dai, więcej

Advanced Materials > 36 > 7 > n/a - n/a

Many perovskite oxides (ABO₃) are considered the most promising alternatives to noble metal catalysts for oxygen reduction reaction (ORR) due to their high intrinsic activities. However, their electrocatalytic performance is often limited by poor electrical conductivity and low specific surface area. Here an electrochemically induced calcium‐leaching process is reported to greatly increase the electrochemical...

artykuł

A Femoral Neck Osteotomy for the Patients with Ankylosing Spondylitis and Thoracolumbar Kyphosis Combined with Hip Flexion Contracture

Xin Yang, Qiwei Wang, Zhicao Meng, Heng Liu, więcej

Orthopaedic Surgery > 16 > 1 > 245 - 253

Objective The surgical treatment of patients with ankylosing spondylitis and severe thoracolumbar kyphosis combined with hip flexion contracture is very difficult for all the surgeons. The femoral neck osteotomy (FNO) is the first step to break the ice. The evaluation of a new modified FNO method is very important to improve the curative effect. Methods Five male patients with nine bone‐fused hips...

artykuł

Composite observer‐based adaptive event‐triggered backstepping control for fractional‐order nonlinear systems with input constraints

Zhiye Bai, Shenggang Li, Heng Liu

Mathematical Methods in the Applied Sciences > 46 > 16 > 16415 - 16433

An event‐triggered neural adaptive backstepping controller via a state and a disturbance observers is proposed for uncertain fractional‐order nonlinear systems with time‐varying external disturbances and unavailable states. The radial basis function neural network (RBFNN) is utilized to approximate uncertain nonlinear terms, and a coupled observer including both state observer and disturbance observer...

artykuł

Dual‐Additive‐Driven Morphology Optimization for Solvent‐Annealing‐Free All‐Small‐Molecule Organic Solar Cells

Heng Liu, Yuang Fu, Zeng Chen, Jiayu Wang, więcej

Advanced Functional Materials > 33 > 36 > n/a - n/a

All‐small‐molecule organic solar cells (ASM‐OSCs), which consist of small‐molecule donors and acceptors, have recently been studied extensively to eliminate the batch‐to‐batch variation from polymer‐based donor or acceptor. On the other hand, the control of their active layer morphology is more challenging due to the similar chemical structure and miscibility of small‐molecule donor and small‐molecule...

artykuł

Revisiting the Role of Sulfur Functionality in Regulating the Electron Distribution of Single‐Atomic Fe Sites Toward Enhanced Oxygen Reduction

Heng Liu, Luozhen Jiang, Yanyan Sun, Javid Khan, więcej

Advanced Functional Materials > 33 > 35 > n/a - n/a

Introducing sulfur functionalities is reported as an efficacious route to regulate the electron distribution of single‐atomic Fe sites for improving the oxygen reduction reaction (ORR) activity, however, it remains controversial about the role of type of sulfur functionalities in enhancing the ORR activity. Herein, this study revisits the role of sulfur functionalities in regulating the electron distribution...

artykuł

Pre‐fatigue damage on the mechanical properties of Q690D steel

Liang Zong, Heng Liu, Qi Si, Kwai‐Fai Chung

Fatigue & Fracture of Engineering Materials & Structures > 46 > 9 > 3306 - 3320

This article aims to analyze the influence of high‐cycle fatigue damage on the mechanical properties and low‐cycle fatigue performance of Q690D. Monotonic tensile and cyclic loading tests were performed on Q690D specimens with different degrees of high‐cycle fatigue damage. Degradation models were established to describe the declining trend of mechanical properties with the increase of pre‐fatigue...

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Elsevier (243)
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ieee (136)
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Advanced Materials (13)
Transactions of Nonferrous Metals Society of China (13)
Advanced Functional Materials (11)
Angewandte Chemie (11)
Angewandte Chemie International Edition (11)
Electrochimica Acta (9)
International Journal of Hydrogen Energy (9)
Journal of Alloys and Compounds (9)
Ionics (7)
Journal of Power Sources (7)
Journal of Solid State Electrochemistry (7)
Catalysis Communications (5)
Chinese Journal of Polymer Science (5)
Materials Letters (5)
Materials Research Bulletin (5)
Acta Physiologiae Plantarum (4)
Chemistry – A European Journal (4)
Engineering Geology (4)
Inorganica Chimica Acta (4)
International Journal of Energy Research (4)
Journal of Solid State Chemistry (4)
Nanomedicine: Nanotechnology, Biology and Medicine (4)
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Advances in Difference Equations (3)
American Journal of Emergency Medicine (3)
Applied Organometallic Chemistry (3)
Applied Physics A (3)
Biochemical and Biophysical Research Communications (3)
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CNS Neuroscience & Therapeutics (3)
Chemosphere (3)
Chinese Science Bulletin (3)
Earthquake Engineering and Engineering Vibration (3)
European Journal of Pharmacology (3)
IEEE Transactions on Electron Devices (3)
International Journal of Fuzzy Systems (3)
Journal of Applied Polymer Science (3)
Journal of Cellular Physiology (3)
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Plant Cell Reports (3)
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Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy (3)
Talanta (3)
Tetrahedron Letters (3)
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Arthritis & Rheumatology (2)
Asia Pacific Journal of Management (2)
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Chaos, Solitons and Fractals: the interdisciplinary journal of Nonlinear Science, and Nonequilibrium and Complex Phenomena (2)
Chemical Engineering Journal (2)
Chinese Journal of Integrative Medicine (2)
Diamond & Related Materials (2)
Energy Procedia (2)
Frontiers of Mechanical Engineering (2)
Human Brain Mapping (2)
IET Micro & Nano Letters (2)
Industrial & Engineering Chemistry Research (2)
Inorganic Chemistry Communications (2)
International Journal of Automation and Computing (2)
International Journal of Earth Sciences (2)
International Urology and Nephrology (2)
Journal of Business Research (2)
Journal of Cellular Biochemistry (2)
Journal of Clinical Laboratory Analysis (2)
Journal of Colloid And Interface Science (2)
Journal of Colloid and Interface Science (2)
Journal of Hazardous Materials (2)
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Journal of Materials Science: Materials in Electronics (2)
Journal of Molecular Catalysis. A, Chemical (2)
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Microporous and Mesoporous Materials (2)
Monatshefte für Chemie - Chemical Monthly (2)
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Plant Molecular Biology Reporter (2)
Polymer International (2)
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Reaction Kinetics, Mechanisms and Catalysis (2)
Sensors and Actuators B: Chemical (2)
The International Journal of Advanced Manufacturing Technology (2)
The Journal of Physical Chemistry C (2)
Tribology International (2)
Vaccine (2)
Water, Air, & Soil Pollution (2)
ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik (2)
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