Search results for: Jianhua Zhao

Items from 1 to 20 out of 249 results

article

Chirality‐Induced Magnet‐Free Spin Generation in a Semiconductor

Tianhan Liu, Yuwaraj Adhikari, Hailong Wang, Yiyang Jiang, more

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

Electrical generation and transduction of polarized electron spins in semiconductors (SCs) are of central interest in spintronics and quantum information science. While spin generation in SCs is frequently realized via electrical injection from a ferromagnet (FM), there are significant advantages in nonmagnetic pathways of creating spin polarization. One such pathway exploits the interplay of electron...

article

Versatile Method of Engineering the Band Alignment and the Electron Wavefunction Hybridization of Hybrid Quantum Devices

Guoan Li, Xiaofan Shi, Ting Lin, Guang Yang, more

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

Hybrid devices that combine superconductors (S) and semiconductors (Sm) have attracted great attention due to the integration of the properties of both materials, which relies on the interface details and the resulting coupling strength and wavefunction hybridization. However, until now, none of the experiments have reported good control of the band alignment of the interface, as well as its tunability...

article

Major quality regulation network of flavonoid synthesis governing the bioactivity of black wolfberry

Youwei Du, Huiya Ma, Yuanyuan Liu, Rui Gong, more

New Phytologist > 242 > 2 > 558 - 575

Black wolfberry (Lycium ruthenicum Murr.) contains various bioactive metabolites represented by flavonoids, which are quite different among production regions. However, the underlying regulation mechanism of flavonoid biosynthesis governing the bioactivity of black wolfberry remains unclear. Presently, we compared the bioactivity of black wolfberry from five production regions. Multi‐omics were performed...

article

Knockout of transcription factor OsERF65 enhances ROS scavenging ability and confers resistance to rice sheath blight

Wenya Xie, Wenlei Cao, Shuaibing Lu, Jianhua Zhao, more

Molecular Plant Pathology > 24 > 12 > 1535 - 1551

Rice sheath blight (ShB) is a devastating disease that severely threatens rice production worldwide. Induction of cell death represents a key step during infection by the ShB pathogen Rhizoctonia solani. Nonetheless, the underlying mechanisms remain largely unclear. In the present study, we identified a rice transcription factor, OsERF65, that negatively regulates resistance to ShB by suppressing...

article

Effect of Vacuum Heat Treatment on the Microstructure and Tribological Property of Ti–6Al–4V Alloy with Cu Coating

Cheng Gu, Yuanbing Wu, Zenghui Tian, Jianhua Zhao, more

Advanced Engineering Materials > 25 > 16 > n/a - n/a

The effect of vacuum heat treatment on the interface microstructure and tribological property of Cu‐coated Ti–6Al–4V alloy is investigated herein. After the vacuum heat treatment process, a diffusion layer is formed at the interface between the Cu coating and the Ti–6Al–4V substrate. The formed intermetallic compounds at the interface between the Ti–6Al–4V substrate and Cu coating are CuTi₂, CuTi,...

article

Ultralow Dark Current Room‐Temperature Infrared Photodetector Based on InSb Nanosheets/MoS₂ Van der Waals Heterostructure

Qian Shi, Shukui Zhang, Xudong Wang, Yan Chen, more

physica status solidi (a) > 220 > 15 > n/a - n/a

As a narrow‐bandgap semiconductor, InSb is widely used in infrared (IR) detection due to its excellent performance and other characteristics such as ultrahigh electron mobility, extremely high quantum efficiency, and robust chemical properties. Herein, an ultralow dark current room‐temperature IR photodetector based on InSb nanosheets (NSs)/MoS₂ flakes van der Waals (vdW) heterostructure is presented...

article

Optically Tunable Transient Plasmons in InSb Nanowires

Mengfei Xue, Dong Pan, Jianhua Zhao, Jianing Chen

Advanced Materials > 35 > 14 > n/a - n/a

Optical carrier incubation can effectively alter the electron transport properties of semiconductors; thus, optical switching of the plasmonic response of the semiconductor enables the ultrafast manipulation of the light at the nanoscale. Semiconductor nanostructures are promising platforms in on‐chip high‐speed plasmonic devices, owing to their high photoinduced electron injection efficiency at sub‐picosecond...

article

Improving Shear Strength of Ti/Mg Bimetal Composites Prepared by Hot‐Dip Aluminizing and Solid–Liquid Compound Casting

Jingjing Shangguan, Jianhua Zhao, Jiaxuan Zhang, Cheng Gu, more

Advanced Engineering Materials > 24 > 11 > n/a - n/a

It is a great challenge to achieve the joining between Ti and Mg for their low solid solubility and positive formation enthalpy value. To fabricate high strength TC4/AZ91D bimetallic composite with metallurgical bonding interface, Al coating is prepared on the surface of TC4 alloy by hot‐dip technology, and Al‐coated TC4/AZ91D bimetal is prepared by solid–liquid compound casting herein. The effect...

article

Compositional Dependence of Epitaxial L1₀‐Mn_xGa Magnetic Properties as Probed by ⁵⁷Mn/Fe and ¹¹⁹In/Sn Emission Mössbauer Spectroscopy

Iraultza Unzueta, Haraldur Pall Gunnlaugsson, Torben Esmann Mølholt, Hilary Masenda, more

physica status solidi (b) > 259 > 7 > n/a - n/a

The magnetic properties of Mn_xGa alloys critically depend on composition x, and the atomic‐scale origin of those dependences is still not fully disclosed. Molecular beam epitaxy has been used to produce a set of Mn_xGa samples (x = 0.7 ÷ 1.9) with strong perpendicular magnetic anisotropy, and controllable saturation magnetization and coercive field depending on x. By conducting ⁵⁷Mn/Fe and ¹¹⁹...

article

Failure Process Observation and Failure Mechanism of Ni‐Coated TC4 Alloy by Gradually Changed Curvature Bending Method

Jianhua Zhao, Fulin Wen, Bingyan Jin, Cheng Gu, more

Advanced Engineering Materials > 24 > 5 > n/a - n/a

To observe the failure process of coating/substrate materials, a gradually changed curvature bending (GCCB) method is proposed, and the relevant equipment is developed. Before GCCB experiment, Ni‐coated Ti6Al4V (TC4) samples were prepared. The effect of vacuum heat treatment on the microstructure at Ti/Ni interface is discussed. With the increase in heat treatment time, intermetallic compounds of...

article

Blood plasma resonance Raman spectroscopy combined with multivariate analysis for esophageal cancer detection

Xianchang Li, Hongjun Chen, Shiding Zhang, Haijun Yang, more

Journal of Biophotonics > 14 > 9 > n/a - n/a

We herein report a novel, reliable and inexpensive method for detecting esophageal cancer using blood plasma resonance Raman spectroscopy combined with multivariate analysis methods. The blood plasma samples were divided into late stage cancer group (n = 164), early stage cancer group (n = 35) and normal group (n = 135) based on clinical pathological diagnosis. Using a specially designed quartz capillary...

article

Anomalous Anisotropy of the Piezoelectric Response in 2D Copper‐Based Ternary Chalcogenides CuMX₂

Xiaobo Shi, Shujuan Jiang, Huabing Yin, Jianhua Zhao, more

physica status solidi (RRL) – Rapid Research Letters > 15 > 9 > n/a - n/a

The development of 2D materials with excellent electronic properties and piezoelectric response is clearly critical for multifunctional piezoelectric devices. Herein, based on first‐principles calculations, the electronic, mechanical, and piezoelectric properties of a series of 2D copper‐based ternary chalcogenides, denoted as CuMX₂ (M = Sb and Bi; X = S and Se) monolayers, are systematically studied,...

article

Front Cover: Lycium ruthenicum Anthocyanins Attenuate High‐Fat Diet‐Induced Colonic Barrier Dysfunction and Inflammation in Mice by Modulating the Gut Microbiota

Baoming Tian, Jianhua Zhao, Min Zhang, Zhifei Chen, more

Molecular Nutrition & Food Research > 65 > 8 > n/a - n/a

Mol. Nutr. Food Res. 2021, 65, 2000745 DOI: 10.1002/mnfr.202000745 Lycium ruthenicum anthocyanins (ACs) reduce weight gain; improve high‐fat diet‐induced gut microbiota dysbiosis; significantly enrich short‐chain fatty acid (SCFA)‐producing bacteria, increase SCFA content, and SCFA receptor expression; and decrease endotoxin‐producing bacteria and endotoxin levels in the gut. The results reveal ACs...

article

Lycium ruthenicum Anthocyanins Attenuate High‐Fat Diet‐Induced Colonic Barrier Dysfunction and Inflammation in Mice by Modulating the Gut Microbiota

Baoming Tian, Jianhua Zhao, Min Zhang, Zhifei Chen, more

Molecular Nutrition & Food Research > 65 > 8 > n/a - n/a

Scope Gut barrier dysfunction and inflammation originating from a dysbiotic gut microbiota (GM) are strongly associated with a high‐fat diet (HFD). Anthocyanins from Lycium ruthenicum (ACs) show antiobesity effects through modulating the GM. However, the mechanism linking the antiobesity effects of ACs and GM modulation remains obscure. Methods and results To investigate the ameliorative effects...

article

Dietary whole Goji berry (Lycium barbarum) intake improves colonic barrier function by altering gut microbiota composition in mice

Baoming Tian, Ziqi Zhang, Jianhua Zhao, Qingyu Ma, more

International Journal of Food Science & Technology > 56 > 1 > 103 - 114

Diet strongly affects human health by modulating gut microbiota (GM) composition. Lycium barbarum (LB), which contains polysaccharides and polyphenols, can alter the GM and intestinal barrier function, thereby reducing and preventing the occurrence of intestinal diseases. To investigate how LB improves colonic barrier function, male C57BL/6J mice were fed diets containing 1.5% or 3% LB for 10 weeks...

article

Highly Sensitive InSb Nanosheets Infrared Photodetector Passivated by Ferroelectric Polymer

Shukui Zhang, Hanxue Jiao, Xudong Wang, Yan Chen, more

Advanced Functional Materials > 30 > 51 > n/a - n/a

Indium antimony is a direct, narrow bandgap III–V semiconductor with ultrahigh carrier mobility and an attractive optoelectronic device candidate for use in the visible to infrared region. Here, an infrared (IR) photodetector based on high‐quality InSb nanosheets (NSs) is presented, which shows a clear photoresponse over a broad spectral range from visible (637 nm) to infrared (4.3 µm). Due to the...

article

Back Pain‐Inducing Test, a Novel and Sensitive Screening Test for Painful Osteoporotic Vertebral Fractures: A Prospective Clinical Study

Huaijian Jin, Xiaoyuan Ma, Yaoyao Liu, Xiang Yin, more

Journal of Bone and Mineral Research > 35 > 3 > 488 - 497

To detect painful vertebral fractures (VFs) in back pain populations at risk of osteoporosis, we designed a physical examination test (the Back Pain‐Inducing Test [BPIT]) that included three movements: lying supine, rolling over, and sitting up. If back pain is induced during any of these movements, the result is defined as positive, thereby establishing a presumptive diagnosis of painful VFs. Pain...

article

Site‐specific variations in cutaneous autofluorescence revealed by excitation‐emission matrix spectroscopy

Jianhua Zhao, Sunil Kalia, Haishan Zeng, Harvey Lui

Photodermatology, Photoimmunology & Photomedicine > 35 > 6 > 400 - 407

Background and Purpose Although cutaneous autofluorescence has been utilized for evaluation of skin conditions, there is a paucity of data on normal human skin autofluorescence and its dependence on anatomical site. The objective of this study is to use excitation‐emission matrix spectroscopy to quantify and characterize skin autofluorescence at different body sites. Methods Ten anatomical sites...

article

Effect of Thickness on the Thermal Conductivity and Microstructure of Die-Cast AZ91D Magnesium Alloy

Yue Ming, Guoqiang You, Xuanxi Xu, Hengyu Wen, more

Metallurgical and Materials Transactions A > 2019 > 50 > 12 > 5969-5976

Magnesium alloys have many excellent properties and possess wide industrial application prospects. Sheets of AZ91D magnesium alloy with different thicknesses were produced by the die-cast process, and the cooling rates lay between 3.77 and 29.27 °C s⁻¹ with the thickness ranging from 1.5 to 6 mm. With the increasing thickness, the grain size increased, and the concentration of Al solute atoms in Mg...

article

Friction and Wear Study on Friction Pairs with a Biomimetic Non-smooth Surface of 316L Relative to CF/PEEK under a Seawater Lubricated Condition

Yingna Liang, Dianrong Gao, Bo Chen, Jianhua Zhao

Chinese Journal of Mechanical Engineering > 2019 > 32 > 1 > 1-14

Current studies of a seawater axial piston pump mainly solve the problems of corrosion and wear in a slipper pair by selecting materials with corrosion resistance, self-lubrication, and wear resistance. In addition, an appropriate biomimetic non-smooth surface design for the slipper pair can further improve the tribological behavior. In this paper, 316L stainless steel and CF/PEEK were selected to...

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INFONA - science communication portal

Search results for: Jianhua Zhao

Chirality‐Induced Magnet‐Free Spin Generation in a Semiconductor

Versatile Method of Engineering the Band Alignment and the Electron Wavefunction Hybridization of Hybrid Quantum Devices

Major quality regulation network of flavonoid synthesis governing the bioactivity of black wolfberry

Knockout of transcription factor OsERF65 enhances ROS scavenging ability and confers resistance to rice sheath blight

Effect of Vacuum Heat Treatment on the Microstructure and Tribological Property of Ti–6Al–4V Alloy with Cu Coating

Ultralow Dark Current Room‐Temperature Infrared Photodetector Based on InSb Nanosheets/MoS₂ Van der Waals Heterostructure

Optically Tunable Transient Plasmons in InSb Nanowires

Improving Shear Strength of Ti/Mg Bimetal Composites Prepared by Hot‐Dip Aluminizing and Solid–Liquid Compound Casting

Compositional Dependence of Epitaxial L1₀‐Mn_xGa Magnetic Properties as Probed by ⁵⁷Mn/Fe and ¹¹⁹In/Sn Emission Mössbauer Spectroscopy

Failure Process Observation and Failure Mechanism of Ni‐Coated TC4 Alloy by Gradually Changed Curvature Bending Method

Blood plasma resonance Raman spectroscopy combined with multivariate analysis for esophageal cancer detection

Anomalous Anisotropy of the Piezoelectric Response in 2D Copper‐Based Ternary Chalcogenides CuMX₂

Front Cover: Lycium ruthenicum Anthocyanins Attenuate High‐Fat Diet‐Induced Colonic Barrier Dysfunction and Inflammation in Mice by Modulating the Gut Microbiota

Lycium ruthenicum Anthocyanins Attenuate High‐Fat Diet‐Induced Colonic Barrier Dysfunction and Inflammation in Mice by Modulating the Gut Microbiota

Dietary whole Goji berry (Lycium barbarum) intake improves colonic barrier function by altering gut microbiota composition in mice

Highly Sensitive InSb Nanosheets Infrared Photodetector Passivated by Ferroelectric Polymer

Back Pain‐Inducing Test, a Novel and Sensitive Screening Test for Painful Osteoporotic Vertebral Fractures: A Prospective Clinical Study

Site‐specific variations in cutaneous autofluorescence revealed by excitation‐emission matrix spectroscopy

Effect of Thickness on the Thermal Conductivity and Microstructure of Die-Cast AZ91D Magnesium Alloy

Friction and Wear Study on Friction Pairs with a Biomimetic Non-smooth Surface of 316L Relative to CF/PEEK under a Seawater Lubricated Condition

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