Search results for: Zhou Jun

Items from 1 to 20 out of 203 results

article

P‐10.14: The measuring methods and influencing factors of folding resilience force

Tang Xin, Zhou Jun, Zheng Can, Cheng Ji, more

SID Symposium Digest of Technical Papers > 55 > S1 > 1286 - 1287

Folding resilience force is a force which can be occur when display modules bending. When these modules are folded, they return to their original state, which is called folding resilience force. Folding resilience force influence the design of folding hinge for foldable mobile phone and mechanism design for vehicle. This paper studied the influencing factors of folding resilience force, such as different...

article

P‐8.2: A scheme for the optical evaluation of waviness on the flexible display

Liu Jinjin, Zhou Jun, Liu Mingxing, Wang Yaling

SID Symposium Digest of Technical Papers > 55 > S1 > 1132 - 1133

The waviness is a visual effect produced by the change of the physical curvature of the surface of the product, when the external parallel light isincidentified, resulting in a change of the light reflected into the human eye. After multiple folds, there will be different degrees of crease conditions in the folded area of the flexible display panel. At present, the 3D profile characterization is mainly...

article

P‐7.5: The study on ultimate bending performance of UTG

Shen Chong, Liu Mingxing, Chen Lingyan, Zhou Jun, more

SID Symposium Digest of Technical Papers > 55 > S1 > 1067 - 1069

In this paper, the ultimate bending performance of UTG was studied. UTG samples of 30um thickness with different degrees of surface compressive stress, strengthening depth, edge collapse degree and in‐plane microdefects were selected for 2PB ultimate bending test. The results show that in‐plane microdefects have the greatest influence on UTG 2PB limit bending, the edge collapse size has the second...

article

Advances in extracting and understanding the bioactivities of marine organism peptides: A review

Qing‐Hao Jin, Ding‐Xin Peng, Zhou‐Jun Zheng

Journal of Food Processing and Preservation > 46 > 6 > n/a - n/a

Marine organisms are important foods for humans. Marine organisms contain large amounts of high‐quality proteins. Biologically functional peptides have great potential for use as functional foods and drugs, in which they can be extracted from marine organisms. Biologically functional peptides with anticancer, anticoagulant, antidiabetic, antihypertensive, antimicrobial, antioxidant, and cholesterol‐lowering...

article

A nanoscale Ni/ZrO₂ catalyst coated with Al₂O₃ for carbon dioxide reforming of methane

Xiaorui Wang, Xiaoli Bai, Yu Guo, Qirui Liu, more

Journal of Chemical Technology & Biotechnology > 96 > 2 > 474 - 480

BACKGROUND CO₂ reforming of methane, also known as dry reforming of methane, has received significant attention because this technology can convert notorious greenhouse gases (CH₄/CO₂) into useful syngas (H₂/CO). However, this technology still has not been commercialized, primarily due to the lack of feasible catalysts. RESULTS Based on zirconia (ZrO₂) nanoparticles with pure monoclinic (m) or...

article

Allelopathic Effects of Castanea henryi Aqueous Extracts on the Growth and Physiology of Brassica pekinensis and Zea mays

Yue Ming, Guan‐Xing Hu, Jing Li, Zhou‐Jun Zhu, more

Chemistry & Biodiversity > 17 > 6 > n/a - n/a

The present study investigated the allelopathic effects of aqueous extracts of Castanea henryi litter on the growth and physiological responses of Brassica pekinensis and Zea mays. Treatment with high concentrations of leaf extract (0.05 g/ml for B. pekinensis and 0.10 g/ml for Z. mays) significantly increased malonaldehyde content and reduced seed germination, seedling growth, chlorophyll content,...

article

Kopplung von Solarenergie und Wärmeenergie zur Kohlendioxidreduktion: Aktueller Stand und Perspektiven

Zhou‐jun Wang, Hui Song, Huimin Liu, Jinhua Ye

Angewandte Chemie > 132 > 21 > 8092 - 8111

Die Reduktion von Kohlendioxid (CO₂) durch die Nutzung verschiedener Antriebskräfte wie Wärme, Strom und Strahlung ist Gegenstand intensiver Forschung. Die effiziente CO₂‐Reduktion ist jedoch aufgrund der langsamen Kinetik nach wie vor eine Herausforderung. Jüngste Pionierarbeiten aus mehreren Arbeitsgruppen, darunter auch unsere, haben gezeigt, dass die Kopplung von Solarenergie und Wärmeenergie...

article

Coupling of Solar Energy and Thermal Energy for Carbon Dioxide Reduction: Status and Prospects

Zhou‐jun Wang, Hui Song, Huimin Liu, Jinhua Ye

Angewandte Chemie International Edition > 59 > 21 > 8016 - 8035

Enormous efforts have been devoted to the reduction of carbon dioxide (CO₂) by utilizing various driving forces, such as heat, electricity, and radiation. However, the efficient reduction of CO₂ is still challenging because of sluggish kinetics. Recent pioneering studies from several groups, including us, have demonstrated that the coupling of solar energy and thermal energy offers a novel and promising...

article

Enhanced low‐temperature activity for CO₂ methanation over NiMgAl/SiC composite catalysts

Yujiang Wang, Yang Xu, Qiankun Liu, Jinwei Sun, more

Journal of Chemical Technology & Biotechnology > 94 > 12 > 3780 - 3786

Background Carbon dioxide (CO₂) methanation is an important reaction in energy and environmental fields, which aims to convert CO₂ into natural gas with hydrogen (H₂) from renewable sources. One of the technical bottlenecks for CO₂ methanation is the lack of feasible catalysts, especially the ones with satisfactory low‐temperature activity. Results The NiMgAl/SiC composite catalyst that was derived...

article

Carbon dioxide reforming of methane over cobalt catalysts supported on hydrotalcite and metal oxides

Yu Guo, Junying Lu, Qirui Liu, Xiaoli Bai, more

Catalysis Communications > 2018 > 116 > C > 81-84

Cobalt (Co) catalysts supported on hydrotalcite (MgAl) and metal oxides (MgO, Al₂O₃) have been synthesized by co-precipitation methods for CO₂ reforming of methane. It is found that the Co/MgAl catalyst possessed excellent initial activity and outstanding long-term stability. An activation process was observed on the Co/MgO catalyst, which was followed by moderate deactivation. The Co/Al₂O₃ catalyst...

article

Curcumin alleviates ischemia reperfusion‐induced late kidney fibrosis through the APPL1/Akt signaling pathway

Chen Hongtao, Fan Youling, Huang Fang, Peng Huihua, more

Journal of Cellular Physiology > 233 > 11 > 8588 - 8596

As a major cause of renal failure, transient renal ischemia and reperfusion induce both acute kidney injury and late fibrosis, which are the common pathological manifestations of end‐stage renal disease. Curcumin is a biologically active polyphenolic compound found in turmeric. Increasing evidence has demonstrated that curcumin has a protective action against renal fibrosis, whereas mechanisms underlying...

article

Design and On-Orbit Verification of EPS for the World’s First 12U Polarized Light Detection CubeSat

Li Peng, Zhou Jun, Yu Xiaozhou

International Journal of Aeronautical and Space Sciences > 2018 > 19 > 3 > 718-729

This paper addresses the design methodology and verification of electrical power system (EPS) for Aoxiang-Sat, the world’s first 12U CubeSat on orbit to detect the polarization of the light of the Earth’s atmosphere. Considering the specific characteristics of Aoxiang-Sat, a novel-centralized EPS architecture using COTS devices for micro/nanosatellite is proposed. Based on the power budget analysis...

article

Practical Constant-Size Ring Signature

Meng-Jun Qin, Yun-Lei Zhao, Zhou-Jun Ma

Journal of Computer Science and Technology > 2018 > 33 > 3 > 533-541

Bitcoin has gained its popularity for almost 10 years as a “secure and anonymous digital currency”. However, according to several recent researches, we know that it can only provide pseudonymity rather than real anonymity, and privacy has been one of the main concerns in the system similar to Bitcoin. Ring signature is a good method for those users who need better anonymity in cryptocurrency. It was...

article

Carbon dioxide reforming of methane over nanostructured Ni/Al2O3 catalysts

Jinwei Sun, Sun Wang, Yu Guo, Mengzhu Li, more

Catalysis Communications > 2018 > 104 > C > 53-56

Ni catalysts supported on nanosheet (S) and nanoplate (P) γ-Al₂O₃ have been successfully synthesized for carbon dioxide (CO₂) reforming of methane. The Ni/Al₂O₃-S catalyst possessed excellent activity and stability whereas the Ni/Al₂O₃-P catalyst exhibited slightly lower activity and much worse stability. The Ni/Al₂O₃-S catalyst displayed much smaller size of Ni nanoparticles, which may explain the...

article

Effect of negative bias on TiAlSiN coating deposited on nitrided Zircaloy-4

Zhou Jun, Feng Zhendong, Fan Xiangfang, Liu Yanhong, more

Journal of Nuclear Materials > 2018 > 498 > C > 76-82

TiAlSiN coatings were deposited on the nitrided Zircaloy-4 by multi-arc ion plating at −100 V, −200 V and −300 V. In this study, the high temperature oxidation behavior of coatings was tested by a box-type resistance furnace in air for 3 h at 800 °C; the macro-morphology of coatings was observed and analyzed by a zoom-stereo microscope; the micro-morphology of coatings was analyzed by a scanning electron...

chapter

Application of through silicon vias on millimeter-wave silicon based antenna

Zhou Dali, Yang Jiapeng, Zhou Jun, Shen Ya

2017 2nd IEEE International Conference on Integrated Circuits and Microsystems (ICICM) > 321 - 325

2017 2nd IEEE International Conference on Integrated Circuits and Microsystems (ICICM)

Through silicon vias (TSVs) are arranged to form a rectangular resonant cavity to improve performance of silicon based antenna in this paper. On the basis of fundamental theory of rectangular resonant cavity, the model of cavity made of through silicon vias is analyzed. Considering the size of millimeter-wave antenna, the three dimensions of cavity for mode TE₁₀₁ is calculated. Applying the resonant...

article

A study on the clinical characteristics of treating nevus of Ota by Q-switched Nd:YAG laser

Liu Yan, Li Di, Wang Weihua, Liu Feng, more

Lasers in Medical Science > 2018 > 33 > 1 > 89-93

The purpose of this study was to retrospectively analyze the clinical characteristics of treating nevus of Ota by Q-switched Nd:YAG laser in Laser Cosmetology Center of Department of Dermatology, the Second Hospital, Xi’an Jiaotong University. The data of 1168 patients of nevus of Ota were analyzed retrospectively, which included the correlation among lesion color, treatment sessions, sex, age, lesion...

chapter

Design and validation of modular MPPT electric power system for multi-U CubeSat

Li Peng, Zhou Jun, Yu Xiaozhou, Che Luping

2017 3rd IEEE International Conference on Control Science and Systems Engineering (ICCSSE) > 374 - 377

2017 3rd IEEE International Conference on Control Science and Systems Engineering (ICCSSE)

To meet the power demand for multi-U CubeSat from 1U up to 20U, a kind of innovative modular electric power system(EPS) is designed and verified. The system can convert three independent photovoltaic power inputs with each channel up to 40Watts, and the maximum power point (MPP) for each channel can be set independently by hardware. The solar power is converted and stored in lithium-ion batteries...

chapter

Telemetry-data based anomaly detection method for flywheel of in-orbit satellite

Zhang Guoyong, Liu Yang, Zhou Jun, Liu Datong

2017 Prognostics and System Health Management Conference (PHM-Harbin) > 1 - 4

2017 Prognostics and System Health Management Conference (PHM-Harbin)

Due to that some parameters are unable to be measured in orbit, it is difficult to establish a precise physical model for in-orbit satellite flywheel. Aiming at this issue, a telemetry-data-based model for anomaly detection is proposed. The model considers only the main parameters that are closely related to the operating condition of the flywheel. Then, the prediction model is trained and tested...

chapter

Attitude predictive control for reentry vehicle considering two-order actuator dynamic characteristic

Guo Jianguo, Zheng Xiangyu, Zhou Jun

2017 29th Chinese Control And Decision Conference (CCDC) > 2174 - 2178

2017 29th Chinese Control And Decision Conference (CCDC)

This paper investigates the attitude predictive control for reentry vehicle with two-order actuator dynamic system. In order to improve the performance of attitude control system for reentry vehicle, the predictive control strategy is derived from quadratic optimization method based on two-order actuator dynamic characteristic, at the same time the disturbance observer is introduced to compensate...

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INFONA - science communication portal

Search results for: Zhou Jun

P‐10.14: The measuring methods and influencing factors of folding resilience force

P‐8.2: A scheme for the optical evaluation of waviness on the flexible display

P‐7.5: The study on ultimate bending performance of UTG

Advances in extracting and understanding the bioactivities of marine organism peptides: A review

A nanoscale Ni/ZrO₂ catalyst coated with Al₂O₃ for carbon dioxide reforming of methane

Allelopathic Effects of Castanea henryi Aqueous Extracts on the Growth and Physiology of Brassica pekinensis and Zea mays

Kopplung von Solarenergie und Wärmeenergie zur Kohlendioxidreduktion: Aktueller Stand und Perspektiven

Coupling of Solar Energy and Thermal Energy for Carbon Dioxide Reduction: Status and Prospects

Enhanced low‐temperature activity for CO₂ methanation over NiMgAl/SiC composite catalysts

Carbon dioxide reforming of methane over cobalt catalysts supported on hydrotalcite and metal oxides

Curcumin alleviates ischemia reperfusion‐induced late kidney fibrosis through the APPL1/Akt signaling pathway

Design and On-Orbit Verification of EPS for the World’s First 12U Polarized Light Detection CubeSat

Practical Constant-Size Ring Signature

Carbon dioxide reforming of methane over nanostructured Ni/Al2O3 catalysts

Effect of negative bias on TiAlSiN coating deposited on nitrided Zircaloy-4

Application of through silicon vias on millimeter-wave silicon based antenna

A study on the clinical characteristics of treating nevus of Ota by Q-switched Nd:YAG laser

Design and validation of modular MPPT electric power system for multi-U CubeSat

Telemetry-data based anomaly detection method for flywheel of in-orbit satellite

Attitude predictive control for reentry vehicle considering two-order actuator dynamic characteristic

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