Jie Zou

Kunming University of Science and Technology

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Reza Rezaee

Curtin University

Yujie Yuan

Edith Cowan University

Kouqi Liu

Peking University

Dengfeng Zhang

Kunming University of Science and Technology

Mehdi Ostadhassan

Kiel University

Xia Zhou

Sinopec (China)

Zengmin Lun

Sinopec (China)

Wenjin Hu

Kunming University of Science and Technology

Thomas Gentzis

Core Laboratories (United States)

Humberto Carvajal‐Ortiz

University of Valley Forge

Cooperative Institutions

Chinese Academy of Sciences

State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation

China University of Petroleum, Beijing

University of Chinese Academy of Sciences

Chengdu University of Technology

National Formosa University

Curtin University

Yanshan University

Kunming University of Science and Technology

Beijing University of Posts and Telecommunications

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Geometry-dependent Casimir forces on a silicon chip

arXiv (Cornell University) (2012)

Jie Zou Z. Marcet Alejandro W. Rodríguez M. T. Homer Reid Alexander P. McCauley

Quantum fluctuations give rise to van der Waals and Casimir forces that dominate the interaction between electrically neutral objects at sub-micron separations. Under the trend of miniaturization, such quantum electrodynamical effects are expected to play an important role in micro- and nano-mechanical devices. Nevertheless, utilization of Casimir forces on the chip level remains a major challenge because all experiments so far require an external object to be manually positioned close to the mechanical element. Here, by integrating a force-sensing micromechanical beam and an electrostatic actuator on a single chip, we demonstrate the Casimir effect between two micromachined silicon components on the same substrate. A high degree of parallelism between the two near-planar interacting surfaces can be achieved because they are defined in a single lithographic step. Apart from providing a compact platform for Casimir force measurements, this scheme also opens the possibility of tailoring the Casimir force using lithographically defined components of non-conventional shapes.

Casimir pressure

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Integration of 3G Wireless Image Transmission System with the Aerial Search and Rescue UAV

Applied Mechanics and Materials (2015)

Jie Zou Chi Yi Wang Yue Min Wang Ming Cong Lu Hong Yan Ren

With the rapid development of unmanned aerial vehicles (UAV), the applications of the UAV are more and more extensively, and one of the important applications is aerial search and rescue. Using the UAV for search and rescue can save cost and avoid the risk of personal injury. Nowadays, the UAV usually use analog 1.2GHz, 2.4GHz or 5.8GHz real-time video transmission system. Because of the limited transmission bandwidth, the maximum resolution is only 640*480, which is not enough for aerial search. It is difficult to search and identify the small target by this aerial image with only 640*480 resolutions. Because the mobile devices and 3G base stations are widespread, this research integrated the UAV with a mobile device to perform time lapse photography App. The high resolution (2688*1520 pixels) photo can be transmitted to the cloud server via 3G network. The GCS (ground control station) can receive these high resolution photos from cloud servers. With these high resolution aerial photos, the rescued targets can be found and identified more easily. Using the EXIF (Exchangeable image file format) information of the aerial photo, the GPS coordinate of the target can be acquired.

Search and rescue

Aerial image

10.4028/www.scientific.net/amm.764-765.708

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3D Path Planning for UAV with Improved Double Deep Q-Network

Lecture notes in electrical engineering (2020)

Liping Zhao Yaofei Ma Jie Zou

10.1007/978-981-15-8458-9_40

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High-Pressure Sorption of Methane, Ethane, and Their Mixtures on Shales from Sichuan Basin, China

Energy & Fuels (2021)

Liang Huang Zhengfu Ning Hao Lin Wen Zhou Lu Wang

High-pressure sorption isotherms of CH4, C2H6, and their mixtures on shales from Sichuan Basin, China, were measured by a volumetric method. The sorption measurements for pure components were conducted at 40, 60, and 80 °C, with the pressure up to ∼20 MPa. The binary sorption measurements were performed to ∼11 MPa at 40 °C and ∼16 MPa at 80 °C, and two feed gas compositions of C2H6 (10 and 20%) were studied. The excess sorption isotherms of pure components were fitted by the three-parameter Langmuir model, and the extended Langmuir (EL) model was used to predict the absolute sorption isotherms of binary mixtures. The sorption discrepancies of CH4/C2H6 were discussed, and the preferential sorption of C2H6 was quantitatively analyzed. As the temperature decreases, the excess sorption isotherm of C2H6 presents a more sharp increase and then a more rapid decrease. The excess sorption isotherms of C2H6 at 40 °C show significant differences with other CH4/C2H6 isotherms. In comparison to gas composition, the temperature has a more notable effect on binary excess sorption isotherms. C2H6 shows a stronger affinity than CH4, and its stronger affinity is less significant in the mixtures compared to the single component. The sorption selectivity presents a first increasing and later decreasing trend with the pressure. The presence of C2H6 mainly reduces the excess sorption of CH4 at a high pressure, and its effect at a low pressure is negligible.

10.1021/acs.energyfuels.0c04205

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Citations (42)

Understanding roles of moisture in CO2 adsorption and desorption hysteresis on deep gas-bearing shales under high temperature and pressure

Separation and Purification Technology (2023)

Yi Xu Zengmin Lun Haitao Wang Chunpeng Zhao Xia Zhou

Hysteresis

10.1016/j.seppur.2023.125970

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Citations (13)

Effects of Molecular Cross-Sectional Areas of Adsorbed Nitrogen on the Brunauer–Emmett–Teller Analysis for Carbon-Based Slit Pores

Langmuir (2020)

Jie Zou Chunyan Fan Xiu Liu

Brunauer-Emmett-Teller (BET) surface area obtained by nitrogen adsorption is a commonly adopted value to characterize the specific surface area for porous materials. In the BET method, the widely applied cross-sectional area of nitrogen is 16.2 Å2, which has been found to be an oversimplified assumption. The adsorption isotherms of nitrogen simulated with the 2CLJ (Lennard-Jones) + 3q molecular model at 77 K was utilized to determine the cross-sectional area and its behavior as a function of pressure, pore size, and solid affinity. The cross-sectional area shows a negative relation with the pressure and varies with pore size and solid affinity. The overestimation of the BET surface area might arise from the inaccurately determined monolayer adsorption capacity and the cross-sectional area.

BET theory

Specific surface area

Carbon fibers

Solid surface

10.1021/acs.langmuir.0c02514

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Study on Ultrasonic-Microwave Synergistic Extraction Process of Tengjiao(Zanthoxylum schinifolium) Oil

Dong Li Jie Zou Yuan Yue Jianjun Guo Wen Xu

The ultrasonic-microwave synergistic extraction process parameter of Tengjiao (Zanthoxylum schinifolium) oil, such as time, temperature, ratio of solid to liquid, microwave power and ultrasonic power, have been studied by orthogonal experiments.The results indicate that, using colza oil as the extraction medium, the best processes were 7min, 110˚C, ratio of solid to liquid 1:25, microwave power 400W and ultrasonic power 800W.

10.2991/ic3me-15.2015.68

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Wireless Cooperative Localization in the Next-Generation Mobile Communication System

Beijing Youdian Xueyuan xuebao (2011)

Jie Zou

To enhance the precision of wireless localization in the traditional mobile network,a wireless cooperative localization algorithm is proposed for the next-generation mobile communication system by employing the cooperative communication between the mobile stations(MS).The cooperative localization problem is solved by non-linear optimization theory.With that this problem is converted to the linear least square problem,finally the location is estimated by the Gauss-Newton algorithm.Simulation shows that,when Gauss-Newton algorithm is applied in the cooperative localization,it is almost converged and the times for convergence(the converging speed) is about 2~3.When there are two or more than two reference terminals(RT) involved in the cooperative localization,and the standard deviation of the distance measured by RT is less than 50 m,the root mean square error of the location estimate is less than 100 m.

Square root

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A Prediction Model for Methane Adsorption Capacity in Shale Gas Reservoirs

Energies (2019)

Jie Zou Reza Rezaee

Estimation of methane adsorption capacity is crucial for the characterization of shale gas reservoirs. The methane adsorption capacity in shales is measured using high-pressure methane adsorption to obtain the adsorption isotherms, which can be fitted by Langmuir model. The determined Langmuir parameters can provide the methane adsorption capacity under actual reservoir conditions. In this study, a prediction model for the methane adsorption in shales was constructed based on 66 samples from 6 basins in China and Western Australia. The model was established in four steps: a model of Langmuir volume at experimental temperature, the temperature dependence of Langmuir volume, a model of Langmuir pressure, the temperature dependence of Langmuir pressure. In the model of Langmuir volume at experimental temperature, total organic carbon (TOC) and clay content (Vsh) were considered. A positive relationship was observed between the TOC and the temperature effect on the Langmuir volume. As the Langmuir pressure is sensitive to various factors, the Langmuir pressure at experimental temperature shows no trend with the TOC, clay content and thermal maturity, but a positive trend with the Langmuir volume. The results of this study can help log analysts to quantify adsorbed gas from well-log data since TOC and Vsh, which are the measure inputs of the introduced models, can be obtained from well-log data as well.

Langmuir adsorption model

Langmuir equation

10.3390/en12020280

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Citations (24)

Compositional controls on nanopore structure in different shale lithofacies: A comparison with pure clays and isolated kerogens

Fuel (2021)

Yujie Yuan Reza Rezaee Hongyan Yu Jie Zou Kouqi Liu

Illite

Petrophysics

Specific surface area

Nanopore

10.1016/j.fuel.2021.121079

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Citations (48)