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Chem and Bio Engineering 2024年第8期1卷 658-663页

作者： Wang, Yue Lai, Yujie Liu, Jieyu Fan, Ziwen Quan, Xueheng Zhang, Tong Wang, Changhong Xu, Cong Chen, Qi Niu, Zheng College of Chemistry Chemical Engineering and Materials Science Soochow University Jiangsu Suzhou215123 China Hebei Normal University Hebei Shijiazhuang050024 China Technology R&D Center Jinhong Gas Co. Ltd. Jiangsu Suzhou215143 China

The separation and purification of methane from natural gas are crucial chemical processes. Herein, we report a Zn-cluster-based MOF (SdMOF-3), enabling the efficient separation of mixed low-carbon alkanes. The unique Zn clusters in the MOF enhance its interaction with hydrogen atoms in alkanes, thus realizing the separation of saturated light alkanes. Single-component gas adsorption tests revealed that SdMOF-3 exhibits significantly higher affinity for C3H8 compared to CH4 and C2H6 at 298 K. dynamic column penetration experiments with mixed gases demonstrated the excellent separation performance of SdMOF-3 for separating C3H8 and C2H6 from CH4 © 2024 The Authors. Co-published by Zhejiang University and American Chemical Society.

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Simultaneous achievement of large electrocaloric effect and ultrawide operating temperature range in BaTiO_(3)-based lead-free ceramic

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Journal of Advanced Ceramics 2024年第8期13卷 1234-1241页

作者： Zhaojie Wang Yingzhi Meng Silin Tang Xiang Niu Hongfang Zhang dingyuan Wang Yisong Bai Bialin Peng Xue Chen Qingqing Ke Sheng-Guo Lu Laijun Liu Guangxi Key Lab of Optical and Electronic Functional Materials and Devices Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of ResourcesCollege of Materials Science and EngineeringGuilin University of TechnologyGuilin 541004China School of Microelectronics Science and Technology Sun Yat-sen UniversityZhuhai 519082China Guangdong Provincial Research Center on Smart Materials and Energy Conversion Devices School of Materials and EnergyGuangdong University of TechnologyGuangzhou 510006China School of Physical Science and Technology&Key Laboratory of Advanced Electrode Materials for Novel Solar Cells for Petroleum and Chemical Industry of China Suzhou University of Science and TechnologySuzhou 215009China Qingdao Haier Smart Technology R&D Co. Ltd.Qingdao 266100China School of Advanced Materials and Nanotechnology Xidian UniversityXi'an 710071China Guangxi Key Laboratory of Manufacturing System&Advanced Manufacturing Technology Guilin University of Electronic TechnologyGuilin 541004China

The electrocaloric effect(ECE),known for its environmentally friendly characteristics,holds significant promise for advancing next-generation solid-state refrigeration *** a large ECE along with a wide working temperature range near room temperature remains a key developmental *** this study,we successfully obtained a substantial ECE of 1.78 K and an extensive working temperature range of 103 K(AT>1.52 K)near room temperature in CaZrO_(3)-modified BaTiO_(3) lead-free ferroelectric ***,this achievement was verified using direct *** piezoresponse force microscopy(PFM)results suggest that the broad temperature range is attributed to the formation of ferroelectric microdomains and polar nanoregions(PNrs).Furthermore,X-ray photoelectron spectroscopy(XPS)and ultraviolet-visible(UV-Vis)spectroscopy reveal a decrease in the oxygen vacancy concentration and an increase in the bandgap for higher CaZrO_(3) doping *** changes synergistically enhance the maximum applied electric field,helping to achieve a high-performance EcE near room *** research presents a straightforward and effective approach for achieving high-performance ECEs in BaTiOg lead-free ceramics,offering promising prospects for application in next-generation solid-state refrigeration technologies.

关键词： BaTiO_(3) electrocaloric effect oxygen vacancy band-gap

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mtdNA-triggered pH response signal-amplified fluorescent probe for multiple cell discrimination

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Chinese Chemical Letters 2024年第3期35卷 363-368页

作者： Tianping Xia Yanxian Hou Zhuoran Xia Gengwen Chen Peichen Tang Jiangli Fan Xiaojun Peng State Key Laboratory of Fine Chemicals Frontiers Science Center for Smart Materials Oriented Chemical EngineeringDalian University of TechnologyDalian 116024China Hematology Reagent R&D Department Mindray Bio-medical Electronics Co.Ltd.Shenzhen 518132China Research Institute of Dalian University of Technology in Shenzhen Shenzhen 518057China

developing fluorescence probes with multiple responses has vital significance but remains ***,for the first time,we present a mitochondrial dNA(mtdNA)-triggered pH response signalamplified fluorescent probe(QCY-dBT)for multiple cell *** probe exhibited a large stokes shift(229 nm),excellent dNA selectivity over rNA,and ultrasensitivity of detection limit(dL;74.0 ng/mL).Thus,QCY-dBT was successfully applied to analyze multiple human peripheral blood cells and visualize mtdNA in healthy and apoptotic *** the tumor acidic environment(pH 6.0–7.0),the absorbance of QCY-dBT at 436 nm increased,and the fluorescence signal(665 nm)was amplified by mtdNA,which enabled the direct observation of tumor *** study provides help in designing smart probes with multiple responses for efficient abnormal cell detection.

关键词： Fluorescence probe Mitochondrial dNA pH response Peripheral blood cells Multiple cell detection

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A Highly Sensitive Triboelectric Quasi-Zero Stiffness Vibration Sensor with Wide Bandwidth 22

A Highly Sensitive Triboelectric Quasi-Zero Stiffness Vibrat...

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22nd International Conference on Solid-State Sensors, Actuators and Microsystems, Transducers 2023

作者： Wu, Pengfan Wang, Fayang Xu, Shiwei Liu, Tao Mu, Xiaojing Chongqing University Key Laboratory Of Optoelectronic Technology & Systems Ministry Of Education International R&d Center Of Micro-Nano Systems And New Materials Technology Chongqing China

ISBN: (纸本)9784886864352

A highly sensitive vibration sensor based on TENG (HSVS-TENG) with ultra-wide frequency response is presented. This study is the first to introduce a quasi-zero stiffness structure into the TENG to minimize the driving force by optimizing the magnetic induction intensity and the weight of the moving part. The results show that the HSVS-TENG can measure vibrations with frequencies ranging from 2.5 to 2600 Hz, with a sensitivity ranging from 0.32 to 134.9 V/g. Moreover, the sensor exhibits a good linear response versus the applied acceleration, and the linearity ranges from 0.08 to 2.81 V/g. © 2023 IEEJ.

关键词： Quasi-zero stiffness self-powered system triboelectric nanogenerator vibration sensor

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Carbonate Fracture-Cavity reservoirs Prediction technology Based deep Learning Model 13th

Carbonate Fracture-Cavity Reservoirs Prediction Technology B...

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13th International Field Exploration and development Conference, IFEdC 2023

作者： Li, Ning Gong, ren-Bin ren, Liang ren, Shu-Hang Sun, Jiang- tao Yu, Xiao Gan, Chun-Ting Research Institute of Petroleum Exploration and Development PetroChina Beijing China Artificial Intelligence Technology R&D Center for Exploration and Development CNPC Beijing100083 China Technology Consult Center Research Institute of Petroleum Exploration and Development PetroChina Beijing100083 China Huawei Technology Co. Ltd. Beijing100085 China

ISBN: (纸本)9789819702718

Paleozoic carbonate rock is the key field of oil-gas exploration in Tarim Basin. Fracture-cavity reservoirs are often developed in carbonate reservoirs in Tarim Oilfield, a large amount of oil and gas resources are dis-tributed in Paleozoic reservoirs with different burial depths and scales, accurately and quickly identifying these fracture-cavity reservoirs is Significant to the oil and gas exploration, development, and production of the Tarim Oilfield. With the continuous development of artificial intelligence technology, machine learning methods have been widely applied in various scenarios of oil and gas exploration and development, bringing new opportunities for the development of carbonate reservoir prediction technology. Based on drilling, logging and seismic data, this study comprehensively analyzes the structure, rock and physical properties of carbonate reservoirs in the study area, exploring the main controlling factors of carbonate reservoirs. On this basis, a sample set corresponding to the fracture-cavity reservoirs in the study area was constructed, by using machine learning methods, a prediction model for carbonate rock fracture-cavity reservoirs has been established, which can intelligently predict carbonate rock fracture and cave reservoirs in the research area. The trained model of carbonate rock fracture and cave reservoir prediction can quickly and accurately identify fracture and cave reservoirs on post stack seismic data. This study demonstrates that methods are based on machine learning can quickly and efficiently predict carbonate rock fracture-cavity reservoirs. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Forecasting

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Impact of Interfacial Layer on the Optoelectronic Performance of MoTe2/Ge Heterojunction 17

Impact of Interfacial Layer on the Optoelectronic Performanc...

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17th IEEE International Conference on Solid-State and Integrated Circuit technology, ICSICT 2024

作者： Lei, Wenyu Wen, Xiaokun di, Boyuan Xu, Xinyue Chang, Haixin Zhang, Wenfeng School of Materials Science and Engineering Huazhong University of Science and Technology Key Laboratory of Material Processing and Die & Mould Technology Wuhan430074 China Shenzhen R&D Center Huazhong University of Science and Technology Shenzhen518000 China

ISBN: (纸本)9798350361834

In this paper, three types of ultra-thin interfacial oxide layers including GeO2, Al2O3, and SiO2, are designed to inserted into the interface of MoTe2/Ge heterojunction to investigate its impact on the photoelectric performance. The device with GeO2 interfacial layer exhibits the maximum responsivity and detectivity as well as the relatively large rectification ratio, reaching values of 1.38 A/W, 1.32× 10 13 Jones, and 140, respectively. For the device with Al2O3 interfacial layer, the maximum rectification ratio and the relatively high detectivity are achieved, reaching values of 807 and 1.56× 10 11 Jones, respectively. While for the MoTe2/Ge heterojunction with SiO2 interfacial layer, which shows an ideality factor of 2.14 and the lowest rectification ratio together with the detectivity. These results indicate that both the interface quality and bandgap of ultrathin interfacial layer would be crucial for the photoelectronic performance of MoTe2/Ge heterojunction. © 2024 IEEE.

关键词： Tellurium compounds

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research Progress of Micro-CT in the Field of Petroleum Engineering 13th

Research Progress of Micro-CT in the Field of Petroleum Engi...

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13th International Field Exploration and development Conference, IFEdC 2023

作者： Ye, Zhi-Lin Lu, Hai-Wei Gao, Xiang Liu, Jian-Quan Jin, Yi CNPC Engineering Technology R&D Company Limited Beijing China Research Institute of Petroleum Exploration and Development Beijing China Drilling and Production Technology Research Institute PetroChina Jidong Oilfield Company Hebei China

ISBN: (纸本)9789819704675

Computerized Tomography (CT) technology has gained wide development in the field of petroleum geology due to its unique advantages in rapid, high-precision, non-destructive analysis, and three-dimensional imaging for microstructure analysis. This article reviews the research progress of CT scanning technology in the field of petroleum engineering in recent years and summarizes its applications in reservoir microstructure, rock and mineral properties, digital core simulation, and non-destructive analysis of rubber materials. Quantitative characterization information such as reservoir pore structure, mineral composition, particle size distribution, and fracture identification can be obtained through three-dimensional image analysis. By constructing digital cores, rock physical properties such as elasticity, permeability, electrical properties, and oil-water distribution can be further studied. In addition, CT scanning and imaging technology have also been gradually applied to defect analysis in rubber materials, providing new technical means for predicting their failure behavior. The construction of digital cores based on CT scanning technology has become a research hotspot in the petroleum field, providing technical support for the three-dimensional visualization and fine quantitative characterization of rock structures. In the future, achieving the integration of digital core data and constructing an application platform from core to reservoir, from micro to macro scales, is the development trend of high-precision CT scanning combined with computer technology. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Computerized tomography

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Inhibitory effect and mechanism of tannic acid against two starch digestive enzymes

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Food Quality and Safety 2024年第1期8卷 115-123页

作者：钟毓秀倪德让杨玉波李元一王莉田金虎杨帆叶兴乾 Department of Food Science and Nutrition Zhejiang Key Laboratory for Agri-Food ProcessingFuli Institute of Food ScienceZhejiang R&D Centre for Food Technology and EquipmentZhejiang UniversityHangzhouChina Institute of Science and Technology Moutai GroupZunyiChina Key Laboratory of Industrial Microbial Resources Development Kweichow Moutai Co.Ltd.RenhuaiChina

Backgrounds:Tannic acid(TA),as a plant-derived phenolic substance,is involved in regulating the activity of starch digestive enzymes,but its underlying mechanism remains *** and results:In the present study,inhibition rate and inhibition kinetics assays were performed and confrmed that TA had a strong inhibitory effect on bothα-amylase andα-glucosidase with IC50 values of 0.1585 mg/mL and 0.00542 mg/mL,respectively,through a mixed inhibition *** secondary structures of both enzymes were confrmed to be modifed by TA through circular dichroism(Cd)*** quenching analysis revealed that the interaction between TA and two enzymes was a static process of pontaneous complex ***,molecular docking revealed that non-covalent bonds were the main interaction forces between TA and both ***:Thus,TA was a promising candidate for the inhibition of starch-digesting enzymes,and the present research provided insight into postprandial glucose regulation through polyphenols.

关键词： Tannic acid α-amylase α-glucosidase inhibition starch digestion.

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Sub-surface sinking effect of reinforcement particle in laser assisted machining of metal matrix composites

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CIrP Annals 2025年

作者： Mypati, Omkar Liao, Zhirong Zan, Shusong M'Saoubi, rachid Axinte, dragos Machining and Condition Monitoring Group Faculty of Engineering University of Nottingham United Kingdom R&D Materials and Technology Development Fagersta Sweden Division of Production and Materials Engineering Lund University Lund Sweden

Aluminium-based SiC particle-reinforced metal matrix composites are widely used in engineering applications due to their exceptional mechanical properties. However, their machining remains challenging due to the mismatch of material properties between the brittle SiC particles and the ductile aluminium matrix, causing tool wear and surface damage. To mitigate these issues, laser inverse problem scanning is utilised to strategically melt the top layer aluminium matrix, allowing the SiC particles to sink and promoting more ductile Al-matrix. The strategic hybrid laser milling approach optimises particle sinking, reduces tool wear and enhances surface integrity by minimising particle fracture, pullout and refining microstructure. © 2025 The Author(s)

关键词： Milling (machining)

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Microstructure and mechanical properties of Fe/NbC composite layer prepared by in-situ reaction

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China Foundry 2023年第4期20卷 356-364页

作者： Le Chen Ji-lin Li Meng-jun Wang Jie Zheng Yao Zhu Zhuo-lin Liu Bing-gui Lü School of Materials Science and Engineering Central South UniversityChangsha 410083China School of Materials Science and Engineering Xi'an University of TechnologyXi'an 710048China Institute of New Materials Guangdong Academy of SciencesGuangzhou 510650China Guangdong Provincial Key Laboratory of Metal Toughening Technology and Application Guangzhou 510650China Guangdong Guangyun New Material Co. Ltd.Yunfu 527527GuangdongChina Yunfu Guangyun Technology R&D Co. Ltd.Yunfu 527527GuangdongChina

NbC ceramic surface-reinforced steel matrix composites were prepared by an in-situ reaction method at different temperatures(1,050℃,1,100℃and 1,150℃)for different times(1 h,2 h and 3 h).The phase constitution,microstructure and fracture morphology of NbC ceramic surface-reinforced steel matrix composites were analyzed by Xrd,SEM and EdS,and the effects of the in-situ reaction temperature and time on the mechanical properties were systematically *** results indicate that the NbC reinforcement layer is formed through the reaction between Nb atoms and carbon atoms diffused from the steel matrix to the Nb *** thickness of this reinforcement layer increases as the reaction time ***,an increase in reaction temperature results in a thicker reinforcement layer,although the rate of increase gradually *** relationship among the thickness of the Nb C reinforcement layer,the reaction time and temperature was established by data *** optimal tensile performance is achieved at 1,100℃for 1 h,with a tensile strength of 228 *** is also found that the defects between the reinforcement layer and the steel matrix are related to reaction *** 1,100℃,these defects are *** mostly occurs in the NbC reinforced layer of the composites,and the fracture mode is characterized by typical intergranular brittle fracture.

关键词： in-situ reaction NbC reinforcement layer microstructure mechanical property

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