Shu Zhang

University of Electronic Science and Technology of China

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Tingting Feng

Second Affiliated Hospital of Nanjing Medical University

Mengqiang Wu

University of Electronic Science and Technology of China

Haiping Zhou

University of Electronic Science and Technology of China

Yong Xiang

University of Electronic Science and Technology of China

Ziqiang Xu

Putian University

Peng Xu

University of Electronic Science and Technology of China

Fali Li

University of Electronic Science and Technology of China

Lin Jiang

First People’s Hospital of Zunyi

Xiaoli Peng

University of Electronic Science and Technology of China

Dezhong Yao

University of Electronic Science and Technology of China

Cooperative Institutions

University of Electronic Science and Technology of China

Chinese Academy of Medical Sciences & Peking Union Medical College

Chinese Academy of Sciences

Peking Union Medical College Hospital

Central South University

University of Chinese Academy of Sciences

Fu Wai Hospital

Peking University

Chengdu University

Shanghai Jiao Tong University

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Prevalence of Dyssynchrony Derived from Echocardiographic Criteria in Heart Failure Patients with Normal or Prolonged QRS Duration

Echocardiography (2007)

Hongxia Niu Wei Hua Shu Zhang Xin Sun Fangzheng Wang

Cardiac resynchronization therapy (CRT) for heart failure is targeted at specific patients with mechanical dyssynchrony. We aimed to evaluate the prevalence of dyssynchrony in heart failure patients with either normal or prolonged QRS duration using Doppler imaging. Sixty heart failure patients with idiopathic dilated cardiomyopathy (30 with prolonged QRS duration 30 with normal QRS duration) underwent standard echocardiography and tissue Doppler imaging examinations. Difference between left and right ventricular pre‐ejection intervals of more than 40 msec was considered a marker of interventricular dyssynchrony. Intraventricular dyssynchrony was defined as a delay of 60 msec between the time to peak velocities of the septum and left ventricular lateral wall. Patients who have either intra‐ or interventricular dyssynchrony were defined as with cardiac dyssynchrony. Dyssynchrony was observed in 7 (23.3 % ) heart failure patients with normal QRS duration versus 26 (86.7 % ) patients with prolonged QRS duration. There was significant difference between the prevalence of dyssynchrony derived from echo criteria in two groups (P < 0.05). Although patients with prolonged QRS duration have a high prevalence of dyssynchrony, yet some still have good cardiac synchronicity. Moreover, dyssynchrony also exists in a small percentage of heart failure patients with normal QRS duration. To identify the potential responders for CRT, both QRS duration and cardiac synchronicity should be assessed.

Ventricular dyssynchrony

Doppler imaging

10.1111/j.1540-8175.2007.00396.x

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Citations (21)

Solvothermal synthesis of aqueous CuInS<inf>2</inf> nanocrystal inks for solar cell

Jia Feng Shu Zhang Yang Xiang

This paper reports a simple scheme for aqueous synthesis of ternary CuInS ₂ nanocrystals with citrate as the stabilizer. It is proved that citrate can suppress the reactivity of Cu ²⁺ and prevent the formation of CuS preceding the formation of CuInS ₂ . Water soluble high quality CuInS ₂ nanocrystals are synthesized by solvothermal method and characterized by XRD and SEM.

10.1109/isne.2014.6839345

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MEMS Based High Sensitivity Calorimetry

Shu Zhang Yizhang Yang Katayun Barmak Yoed Rabin Mehdi Asheghi

The fundamental study of phase transformations continues to be a key for successful implementation of metals and alloys in micro- and nano-scale structures in integrated circuitry and magnetic recording devices and systems. The thermodynamic and thermokinetic properties of extremely thin layers can be altered due to the relative effect of boundaries and interfaces on the volume of the material. Calorimetry at the nano-scale requires measurement sensitivity on the order of 1 nJ or better, which requires improved thermal design, development of thermal modeling, and development of experimental measurement techniques. In this report, the specific heat of 144 nm thick CoFe layer is measured, using frequency-domain Joule heating and thermometry (3ω-technique), on Cu/SiO2 and Cu/SiO2/CoFe suspended bridges. Analyses of the heat transfer in suspended structures are performed to establish guidelines for design and fabrication of small-scale differential scanning calorimeters.

Thermal transfer

Joule effect

10.1115/imece2004-62332

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Uncertainty tests of monitoring instrument is one of means that to guarantee the monitoring result is exact

Environmental Monitoring in China (2000)

Shu Zhang

By uncertainty tests of monitoring instrument, we can inspect whether the instrument's error is satisfy with the analyze method or not, then we can learn the instrument's adaptability for the method, we can also learn which is the best instrument that error is the smallest among the same kinds instrument when they determine the same item Uncertainty tests of monitoring instrument is one of means that to guarantee the monitoring result is exact

Adaptability

Measuring instrument

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Single-Crystalline Ni-Rich layered cathodes with Super-Stable cycling

Chemical Engineering Journal (2021)

Lianshan Ni Ruiting Guo Wentao Deng Baowei Wang Jun Chen

Shrinkage

Particle (ecology)

10.1016/j.cej.2021.133731

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Citations (44)

Altered dynamic network interactions in children with ASD during face recognition revealed by time-varying EEG networks

Research Square (Research Square) (2023)

Baodan Chen Lin Jiang Guoqing Lu Yuqin Li Shu Zhang

Abstract Background: Although the electrophysiological event-related potential (ERP) in face processing (e.g., N170) is widely accepted as a face-sensitivity biomarker that is deficient in children with autism spectrum disorders (ASD), the time-varying brain networks during face recognition are still awaiting further investigation. Methods: To explore the social deficits in ASD, especially the time-varying brain networks during face recognition, the current study analyzed the N170, cortical activity, and time-varying networks under three tasks (face-upright, face-inverted, and house-upright) in ASD and typically developing (TD) children. Results: The results revealed a smaller N170 amplitude in ASD compared with TD, along with decreased cortical activity mainly in occipitotemporal areas. Concerning the time-varying networks, the atypically stronger information flow and brain network connections across frontal, parietal, and temporal regions in ASD were reported, which reveals greater effort was exerted by ASD to obtain comparable performance to the TD children, although the amplitude of N170 was still smaller than that of the TD children. Conclusion: Different brain activation states and interaction patterns of brain regions during face-processing were discovered between ASD and TD. These findings shed light on the face-processing mechanisms in children with ASD and provide new insight for understanding the social dysfunction of ASD.

Typically developing

10.21203/rs.3.rs-2671570/v1

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Effect of Measuring Lead C_x on Measuring Results and Eliminating Methods when Measuring tanδ of Insulation by QS1 Type Bridge

TRANSFORMER (2000)

Shu Zhang

When measuring tanδ of insulation by QS1 type bridge, effect of measuring lead C x  on measuring result is analysed. Two calculating methods, which are used for eliminating measuring error caused by the lead are explained.

Bridge (graph theory)

Lead (geology)

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Fabrication of highly crystallized Cu2SnS3 thin films through sulfurization of Sn-rich metallic precursors

Journal of Alloys and Compounds (2014)

Haitao Zhang Meng Xie Shu Zhang Yong Xiang

Stoichiometry

Soda-lime glass

10.1016/j.jallcom.2014.03.014

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Citations (48)

Surface De-Fluorination and Bond Modification of CF_x by High-Density Hydrogen Plasma Processing

ACS Applied Energy Materials (2021)

Guotao Chen Haiping Zhou Shu Zhang Zidong Zhang Tingting Feng

The Li/CFx (lithium/fluorinated carbon) primary battery has attracted worldwide interest from the academic community and industry. However, Li/CFx batteries encounter the issue of poor rate capability because of the poor electronic conductivity of CFx due to the strong covalent C–F bond. Herein, we reported a vapor-phase method, namely, a low-temperature plasma technique, to modify the surface morphology, chemical components, and the microstructure of CFx. High-density hydrogen plasma processing partially de-fluorinated the CFx surface with a gradient fluorine content in the CFx powders and resulted in the increased ionic C–F bond simultaneously on the surface of CFx. As a result, both the specific capacity and rate performance of the Li/CFx primary battery were significantly improved due to the enhanced electron and Li+ transfer evidenced by the electrochemical tests. Different from the commonly used liquid-phase/solid-phase methods, no centrifugation, filtration, or washing processes were involved in this time-saving, eco-friendly, and facile plasma technique of the present plasma method.

Surface Modification

Fluorine

Plasma Processing

10.1021/acsaem.1c01839

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Citations (23)

Nickel-Catalyzed Carbonylation of Difluoroalkyl Bromides with Arylboronic Acids

Organic Letters (2019)

Haiyang Zhao Xing Gao Shu Zhang Xingang Zhang

A nickel-catalyzed carbonylative difluoroalkylation reaction with arylboronic acids under 1 atm of CO has been developed. The reaction proceeds under mild reaction conditions with high efficiency and high functional group tolerance. Preliminary mechanistic studies reveal that the arylacyl nickel complex is the key intermediate to circumvent the formation of labile fluoroacyl nickel, and bimetallic oxidative addition is likely the key step to facilitate the catalytic cycle.

Bimetallic strip

Carbonylation

Catalytic cycle

Functional group

Oxidative addition

10.1021/acs.orglett.8b04070

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Citations (81)