Search results for: Yu Tian

Items from 1 to 20 out of 1 041 results

article

Dual‐Type Ru Atomic Sites for Efficient Alkaline Overall Water Splitting

Peng Wang, Ke Wang, Yunjie Liu, Huifang Li, more

Advanced Functional Materials > 34 > 36 > n/a - n/a

Monotypic catalytic site for bifunctional hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) at low overpotential is a grand challenge in alkaline water splitting. Herein, a new strategy of dual‐type atomic site‐support interaction is reported, in which ruthenium heteroatoms are in situ implanted into both the N‐C nanosheet matrix (Ru¹‐N‐C) and supported Co₂P nanoparticle lattice...

article

Shrinking economic MPC of constrained nonlinear systems: An event‐triggered constraint relaxation approach

Yu Tian, Defeng He, Jianbin Mu

International Journal of Robust and Nonlinear Control > 34 > 15 > 10424 - 10436

This article proposes a novel event‐triggered economic model predictive control (EMPC) scheme with shrinking prediction horizon of nonlinear systems subject to the constraints on the state and control. Some auxiliary positive‐definite functions at economic optimal equilibrium points are defined for economic performance functions. The optimal value function of the auxiliary function is used to design...

article

Determination of soluble solids content in tomatoes with different nitrogen levels based on hyperspectral imaging technique

Yiyang Zhang, Yao Zhang, Yu Tian, Hua Ma, more

Journal of Food Science > 89 > 9 > 5724 - 5733

Abstract Tomato is sweet and sour with high nutritional value, and soluble solids content (SSC) is an important indicator of tomato flavor. Due to the different mechanisms of nitrogen uptake and assimilation in plants, exogenous supply of different forms of nitrogen will have different effects on the growth, development, and physiological metabolic processes of tomato, thus affecting the tomato flavor...

article

Enantioselective Surface‐Enhanced Raman Scattering by Chiral Au Nanocrystals with Finely Modulated Chiral Fields and Internal Standards

Yu Tian, Fengxia Wu, Xiali Lv, Xiaoxi Luan, more

Advanced Materials > 36 > 35 > n/a - n/a

The chiral discrimination of enantiomers is crucial for drug screening and agricultural production. Surface‐enhanced Raman scattering (SERS) is proposed for discriminating enantiomers benefiting from chiral plasmonic materials. However, the mechanism of enantioselective SERS is unclear, and fluctuating SERS intensities may result in errors. Herein, this work demonstrates a reliable SERS substrate...

article

Anti‐unwinding attitude maneuver control with predefined time for rigid spacecraft with input saturation

Yu‐Tian Xu, Ai‐Guo Wu, Rui‐Qi Dong

International Journal of Robust and Nonlinear Control > 34 > 13 > 8919 - 8944

In this article, anti‐unwinding sliding mode attitude maneuver control with predefined time is investigated for rigid spacecraft with input saturation. First, a nonsingular sliding function containing two equilibrium points is designed to ensure the predefined‐time convergence of system states and unwinding‐free performance of the closed‐loop system on the sliding phase. Then, an auxiliary system...

article

Polycationic Open‐Shell Cyclophanes: Synthesis of Electron‐Rich Chiral Macrocycles, and Redox‐Dependent Electronic States

Yafei Shi, Chenglong Li, Jiaqi Di, Yuting Xue, more

Angewandte Chemie International Edition > 63 > 27 > n/a - n/a

π‐Conjugated chiral nanorings with intriguing electronic structures and chiroptical properties have attracted considerable interests in synthetic chemistry and materials science. We present the design principles to access new chiral macrocycles (1 and 2) that are essentially built on the key components of main‐group electron‐donating carbazolyl moieties or the π‐expanded aza[7]helicenes. Both macrocycles...

article

Polycationic Open‐Shell Cyclophanes: Synthesis of Electron‐Rich Chiral Macrocycles, and Redox‐Dependent Electronic States

Yafei Shi, Chenglong Li, Jiaqi Di, Yuting Xue, more

Angewandte Chemie > 136 > 27 > n/a - n/a

article

HHLA2 promotes hepatoma cell proliferation, migration, and invasion via SPP1/PI3K/AKT signaling pathway

Junqi Wang, Ke Yang, Xin Yang, Tianqiang Jin, more

Molecular Carcinogenesis > 63 > 7 > 1275 - 1287

Hepatocellular carcinoma (HCC) stands as one of the most malignant tumors characterized by poor prognosis and high mortality rates. Emerging evidence underscores the crucial role of the B7 protein family in various cancers, including HCC. However, the involvement of the human endogenous retrovirus H long‐terminal repeat‐associated protein 2 (HHLA2, or B7‐H5) in HCC remains unclear. Immunohistochemistry...

article

A Multiplex Recombinase‐Aided qPCR Assay for Highly Sensitive and Rapid Detection of khe, bla_KPC_‐2, and bla_NDM_‐1 Genes in Klebsiella pneumoniae

Shao‐wei Hua, Jie Wang, Zi‐jin Zhao, Feng‐yu Tian, more

Journal of Clinical Laboratory Analysis > 38 > 9 > n/a - n/a

Objective This study aimed to establish a highly sensitive and rapid single‐tube, two‐stage, multiplex recombinase‐aided qPCR (mRAP) assay to specifically detect the khe, bla_KPC‐2, and bla_NDM‐1 genes in Klebsiella pneumoniae. Methods mRAP was carried out in a qPCR instrument within 1 h. The analytical sensitivities of mRAP for khe, bla_KPC‐2, and bla_NDM‐1 genes were tested using recombinant plasmids...

article

How does economic inequality shape conspiracy theories? Empirical evidence from China

Zhao‐Xie Zeng, Cai‐Yu Tian, Jia‐Yan Mao, Jan‐Willem Prooijen, more

British Journal of Social Psychology > 63 > 2 > 477 - 498

Conspiracy theories tend to be prevalent, particularly in societies with high economic inequality. However, few studies have examined the relationship between economic inequality and belief in conspiracy theories. We propose that economic inequality leads people to believe conspiracy theories about economically advantaged groups (i.e., upwards conspiracy theories) and that moral evaluations of those...

article

A preliminary study on the association of single nucleotide polymorphisms and methylation of dopamine system‐related genes with psychotic symptoms in patients with methamphetamine use disorder

Ting Fang, Meng‐Nan Liu, Meng‐Qi Liu, Xiao‐Yu Tian, more

European Journal of Neuroscience > 59 > 7 > 1428 - 1440

Methamphetamine use disorder (MAUD) can substantially jeopardize public security due to its high‐risk social psychology and behaviour. Given that the dopamine reward system is intimately correlated with MAUD, we investigated the association of single nucleotide polymorphisms (SNPs), as well as methylation status of dopamine receptor type 4 (DRD4), catechol‐O‐methyltransferase (COMT) genes, and paranoid...

article

Thermodynamic properties calculations of Cu‐based species

Muhammad Yousuf, Muhammad Fahad Arshad, Zhen‐Yu Tian

International Journal of Chemical Kinetics > 56 > 5 > 310 - 322

This work focuses on the thermodynamic property calculations of seven copper‐based species, namely copper, copper oxide, copper hydroxide, copper nitrate, and copper hydroxide nitrate. The structures of these species were optimized to achieve stable geometries. The density functional theory (DFT) calculations were employed to obtain various thermodynamic properties such as entropy, enthalpy, Gibbs...

article

Ligustilide‐loaded liposome ameliorates mitochondrial impairments and improves cognitive function via the PKA/AKAP1 signaling pathway in a mouse model of Alzheimer's disease

Qi Zhang, Xiangxiang Zhang, Bing Yang, Yan Li, more

CNS Neuroscience & Therapeutics > 30 > 3 > n/a - n/a

Background Oxidative stress is an early event in the development of Alzheimer's disease (AD) and maybe a pivotal point of interaction governing AD pathogenesis; oxidative stress contributes to metabolism imbalance, protein misfolding, neuroinflammation and apoptosis. Excess reactive oxygen species (ROS) are a major contributor to oxidative stress. As vital sources of ROS, mitochondria are also the...

article

Low‐temperature sintered (Ti, Zr, Nb, Ta, Mo)C ceramics with improved hardness and toughness by using CrN as sintering additive

Yang Liu, Jia‐Ji Liang, Wei‐Ming Guo, Yu Tian, more

Journal of the American Ceramic Society > 107 > 5 > 2800 - 2808

Currently, previous studies of low‐temperature sintering of high‐entropy carbide ceramics (HECCs) have followed the traditional approach to use the low‐melting‐point metals, such as Co, Ni, and so forth, as sintering additives. However, metallic binders can cause adverse impacts on hardness of HECCs. This study reported an innovation processing method for low‐temperature sintering of HECCs, which...

article

Copper‐Catalyzed Enantioselective C(sp³)−SCF₃ Coupling of Carbon‐Centered Benzyl Radicals with (Me₄N)SCF₃

Wei Zhang, Yu Tian, Xiao‐Dong Liu, Cheng Luan, more

Angewandte Chemie International Edition > 63 > 11 > n/a - n/a

In contrast with the well‐established C(sp²)−SCF₃ cross‐coupling to forge the Ar−SCF₃ bond, the corresponding enantioselective coupling of readily available alkyl electrophiles to forge chiral C(sp³)−SCF₃ bond has remained largely unexplored. We herein disclose a copper‐catalyzed enantioselective radical C(sp³)−SCF₃ coupling of a range of secondary/tertiary benzyl radicals with the easily available...

article

Copper‐Catalyzed Enantioselective C(sp³)−SCF₃ Coupling of Carbon‐Centered Benzyl Radicals with (Me₄N)SCF₃

Wei Zhang, Yu Tian, Xiao‐Dong Liu, Cheng Luan, more

Angewandte Chemie > 136 > 11 > n/a - n/a

article

Electrodeposited Poly(5‐Amino‐2‐Naphthalenesulfonic Acid‐co‐o‐Aminophenol) as the Electrode Material for Flexible Supercapacitor

Chao Wang, Yifan Yang, Zixiang Zhou, Yihao Li, more

Small > 20 > 8 > n/a - n/a

Copolymers of 5‐amino‐2‐naphthalenesulfonic acid (ANS) and o‐aminophenol (oAP) are electropolymerized on carbon cloth substrate from aqueous solutions, and the electropolymerization process is investigated using electrochemical quartz‐crystal microbalance. The surface of the copolymer (PANS‐co‐oAP) appears rough and is capable to store charge as the battery‐type electrode in 1 m H₂SO₄ (102.9 mAh g...

article

The targeting of DAPK1 with miR‐190a‐3p promotes autophagy in trophoblast cells

Qi‐qi Luo, Yu Tian, Guang‐jin Qu, Kun Huang, more

Molecular Reproduction and Development > 91 > 1 > n/a - n/a

Pre‐eclampsia (PE) is a dangerous pathological status that occurs during pregnancy and is a leading reason for both maternal and fetal death. Autophagy is necessary for cellular survival in the face of environmental stress as well as cellular homeostasis and energy management. Aberrant microRNA (miRNA) expression is crucial in the pathophysiology of PE. Although studies have shown that miRNA (miR)‐190a‐3p...

article

Effect of cyanide content on the tribological performance of nitrile butadiene rubber

Peng Wei, Qingkun Liu, Xin Hou, Qiong Zhou, more

Journal of Applied Polymer Science > 141 > 9 > n/a - n/a

Nitrile butadiene rubber (NBR) has received a lot of attention as a sealing material, and its tribological performance is a crucial factor in determining the efficiency with which it will operate under various operating situations. In this study, NBR specimens with varying degrees of cyanide content, namely low cyanide (DN401), medium cyanide (DN2850), medium‐high cyanide (DN3380), and high cyanide...

article

Deciphering the Mechanisms of Photo‐Enhanced Catalytic Activities in Plasmonic Pd‐Au Heteromeric Nanozymes for Colorimetric Analysis

Xueqing Sang, Shiyu Xia, Lu Cheng, Fengxia Wu, more

Small > 20 > 3 > n/a - n/a

The growing demand for highly active nanozymes in various fields has led to the development of several strategies to enhance their activity. Plasmonic enhancement, a strategy used in heterogenous catalysis, represents a promising strategy to boost the activity of nanozymes. Herein, Pd‐Au heteromeric nanoparticles (Pd‐Au dimers) with well‐defined heterointerfaces have been explored as plasmonic nanozymes...

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INFONA - science communication portal

Search results for: Yu Tian

Dual‐Type Ru Atomic Sites for Efficient Alkaline Overall Water Splitting

Shrinking economic MPC of constrained nonlinear systems: An event‐triggered constraint relaxation approach

Determination of soluble solids content in tomatoes with different nitrogen levels based on hyperspectral imaging technique

Enantioselective Surface‐Enhanced Raman Scattering by Chiral Au Nanocrystals with Finely Modulated Chiral Fields and Internal Standards

Anti‐unwinding attitude maneuver control with predefined time for rigid spacecraft with input saturation

Polycationic Open‐Shell Cyclophanes: Synthesis of Electron‐Rich Chiral Macrocycles, and Redox‐Dependent Electronic States

Polycationic Open‐Shell Cyclophanes: Synthesis of Electron‐Rich Chiral Macrocycles, and Redox‐Dependent Electronic States

HHLA2 promotes hepatoma cell proliferation, migration, and invasion via SPP1/PI3K/AKT signaling pathway

A Multiplex Recombinase‐Aided qPCR Assay for Highly Sensitive and Rapid Detection of khe, bla_KPC_‐2, and bla_NDM_‐1 Genes in Klebsiella pneumoniae

How does economic inequality shape conspiracy theories? Empirical evidence from China

A preliminary study on the association of single nucleotide polymorphisms and methylation of dopamine system‐related genes with psychotic symptoms in patients with methamphetamine use disorder

Thermodynamic properties calculations of Cu‐based species

Ligustilide‐loaded liposome ameliorates mitochondrial impairments and improves cognitive function via the PKA/AKAP1 signaling pathway in a mouse model of Alzheimer's disease

Low‐temperature sintered (Ti, Zr, Nb, Ta, Mo)C ceramics with improved hardness and toughness by using CrN as sintering additive

Copper‐Catalyzed Enantioselective C(sp³)−SCF₃ Coupling of Carbon‐Centered Benzyl Radicals with (Me₄N)SCF₃

Copper‐Catalyzed Enantioselective C(sp³)−SCF₃ Coupling of Carbon‐Centered Benzyl Radicals with (Me₄N)SCF₃

Electrodeposited Poly(5‐Amino‐2‐Naphthalenesulfonic Acid‐co‐o‐Aminophenol) as the Electrode Material for Flexible Supercapacitor

The targeting of DAPK1 with miR‐190a‐3p promotes autophagy in trophoblast cells

Effect of cyanide content on the tribological performance of nitrile butadiene rubber

Deciphering the Mechanisms of Photo‐Enhanced Catalytic Activities in Plasmonic Pd‐Au Heteromeric Nanozymes for Colorimetric Analysis

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