This study aimed to investigate the protective effects of fleshes from two Actinidia chinensis(ACF), pericarps from two A. chinensis(ACP), and fleshes with pericarps from two A. chinensis(ACFP)on high fructose(HF)-ins...This study aimed to investigate the protective effects of fleshes from two Actinidia chinensis(ACF), pericarps from two A. chinensis(ACP), and fleshes with pericarps from two A. chinensis(ACFP)on high fructose(HF)-instigated dyslipidemia, hepatic steatosis, oxidative stress, insulin resistance, and fatty acid metabolism disorders in rats. In general, the above abnormalities were improved after 10 weeks intervention of ACF, ACP, and ACFP. Especially, ACFP considerably ameliorated HF-induced abnormal changes in body weight gain, serum TC, TG, LDL-C and HDL-C levels, as well as serum and hepatic SFAs, MUFAs and PUFAs contents. ACFP also alleviated HF-induced hyperglycemia and hyperinsulinemia, stabilized HF-caused increase in hepatic MDA and serum ALT, AST levels, and restored HF-declined hepatic T-SOD and GSH-Px activities. Besides, histopathology of the liver further endorsed the protective effects of ACFP on hepatocellular injury. Moreover, ACFP increased HF-dropped acetic, propionic and butyric acid levels. Overall, ACFP employs more efficacious protective effects against HF-induced metabolic disorders and liver damage than ACF and ACP. This study delivers a scientific foundation for developing kiwifruit(counting peel)-based dietary supplements for those with glucolipid-metabolic disorders and liver damage.展开更多
Dense matching of remote sensing images is a key step in the generation of accurate digital surface models.The semi-global matching algorithm comprehensively considers the advantages and disadvantages of local matchin...Dense matching of remote sensing images is a key step in the generation of accurate digital surface models.The semi-global matching algorithm comprehensively considers the advantages and disadvantages of local matching and global matching in terms of matching effect and computational efficiency,so it is widely used in close-range,aerial and satellite image matching.Based on the analysis of the original semi-global matching algorithm,this paper proposes a semi-global high-resolution remote sensing image that takes into account the geometric constraints of the connection points and the image texture information based on a large amount of high-resolution remote sensing image data and the characteristics of clear image texture.123123The method includes 4 parts:①Precise orientation.Aiming at the system error in the image orientation model,the system error of the rational function model is compensated by the geometric constraint relationship of the connecting points between the images,and the sub-pixel positioning accuracy is obtained;②Epipolar image generation.After the original image is divided into blocks,the epipolar image is generated based on the projection trajectory method;③Image dense matching.In order to reduce the size of the cost space and calculation time,the image is pyramided and then semi-globally matched layer by layer.In the matching process,the disparity map expansion and erosion algorithm that takes into account the image texture information is introduced to restrict the disparity search range and better retain the edge characteristics of the ground objects;④Generate DSM.In order to test the matching effect,the weighted median filter algorithm is used to filter the disparity map,and the DSM is obtained based on the principle of forward intersection.Finally,the paper uses the matching results of WordView3 and Ziyuan No.3 stereo image to verify the effectiveness of this method.展开更多
Dense matching of remote sensing images is a key step in the generation of accurate digital surface models.The semi-global matching algorithm comprehensively considers the advantages and disadvantages of local matchin...Dense matching of remote sensing images is a key step in the generation of accurate digital surface models.The semi-global matching algorithm comprehensively considers the advantages and disadvantages of local matching and global matching in terms of matching effect and computational efficiency,so it is widely used in close-range,aerial and satellite image matching.Based on the analysis of the original semi-global matching algorithm,this paper proposes a semi-global high-resolution remote sensing image that takes into account the geometric constraints of the connection points and the image texture information based on the large amount of high-resolution remote sensing image data and the characteristics of clear image texture.The method includes 4 parts:(1)Precise orientation.Aiming at the system error in the image orientation model,the system error of the rational function model is compensated by the geometric constraint relationship of the connecting points between the images,and the sub-pixel positioning accuracy is obtained;(2)Epipolar image generation.After the original image is divided into blocks,the epipolar image is generated based on the projection trajectory method;(3)Image dense matching.In order to reduce the size of the cost space and calculation time,the image is pyramided and then semi-globally matched layer by layer.In the matching process,the disparity map expansion and erosion algorithm that takes into account the image texture information is introduced to restrict the disparity search range and better retain the edge characteristics of the ground objects;(4)Generate DSM.In order to test the matching effect,the weighted median filter algorithm is used to filter the disparity map,and the DSM is obtained based on the principle of forward intersection.Finally,the paper uses the matching results of WordView3 and Ziyuan No.3 stereo image to verify the effectiveness of this method.展开更多
Micro/nanomotors,as dynamic micro/nano carriers,enhance reaction rates,reduce costs,and enable multifunctional tasks through functionalization.As alternatives to traditional detection and processing methods,a variety ...Micro/nanomotors,as dynamic micro/nano carriers,enhance reaction rates,reduce costs,and enable multifunctional tasks through functionalization.As alternatives to traditional detection and processing methods,a variety of functionalized MNMs have been developed,with preliminary applications explored in food safety detection and auxiliary processing.This review summarizes the propulsion mechanisms of MNMs tailored for food matrices,covering chemical-fueled propulsion(e.g.,water,acid,H_(2)O_(2),glucose)and external-fieldcontrolled propulsion(e.g.,magnetic,light,ultrasonic).It highlights the strengths and limitations of MNMs in food safety detection(e.g.,pathogens,toxins,heavy metals)and auxiliary processing(e.g.,sterilization,allergen removal,water purification),emphasizing their high reaction efficiency and recyclability.However,challenges such as scalable and low-cost preparation,intelligent control,and biocompatibility must be addressed to advance practical applications.Future research should focus on homogenized fabrication techniques,multifunctional integration,and expanding MNMs’roles in nutrient delivery and real-time monitoring.Addressing these gaps will unlock their full potential in revolutionizing food safety and industrial processing,paving the way for sustainable and intelligent food systems.展开更多
β-lactoglobulin(β-LG),a strong allergen,is widely present in milk.The separation of β-LG plays an important role in research on reducing milk allergenicity.In this study,we successfully prepared a magnetic imprinti...β-lactoglobulin(β-LG),a strong allergen,is widely present in milk.The separation of β-LG plays an important role in research on reducing milk allergenicity.In this study,we successfully prepared a magnetic imprinting micromotor driven by decomposing H_(2)O_(2),which helps to selective dynamic removal of β-LG in milk processing,thereby reducing milk allergenicity.This micromotor consists of a conductive polymer material called PEDOT/PSS,which selectively binds β-LG through its surface imprinting layer.The deposition of the Ni layer gives the micromotor a good magnetic recycling ability,which enables efficient reuse,and the innermost Pt layer promotes the movement of the micromotor through the catalytic decomposition of H_(2)O_(2),generating O_(2) bubbles to achieve dynamic and efficient adsorption of β-LG.In the experiments,the micromotor exhibited excellent kinematic performance in 1.0%H_(2)O_(2) solution(90-130μm/s).Protein adsorption experiments demonstrated the excellent selective adsorption ability of the imprinting layer to the target proteins and the magnetic recycling reuse ability.Its maximum adsorption of β-lactoglobulin from actual milk samples was 18.8μg/mg,the recycling rate is above 90%.Molecular docking experiments elucidated the possible mechanism for the adsorption of β-LG by the imprinting layer.Processing experiments on real milk samples proved the feasibility of its application in real milk processing.This study combines the advantages of bubble-driven micromotors to accelerate fluid mixing and transfer with the selective adsorption ability of molecularly imprinted polymer layers on target molecules,thus providing a feasible idea for the separation and removal of allergenicβ-LG in milk processing.展开更多
基金funded by the National Natural Science Foundation of China (C31901702,and 32072175)the China Postdoctoral Science Foundation (2019M653535,2020T130395)+2 种基金the Fundamental Research Funds for the Central Universities of Shaanxi Normal University in China (GK202003083)the grants of Sci-Tech Innovation Team of Shaanxi Province (2019TD-035)the Development Program for Innovative Research Team of Shaanxi Normal University (GK202101006)。
文摘This study aimed to investigate the protective effects of fleshes from two Actinidia chinensis(ACF), pericarps from two A. chinensis(ACP), and fleshes with pericarps from two A. chinensis(ACFP)on high fructose(HF)-instigated dyslipidemia, hepatic steatosis, oxidative stress, insulin resistance, and fatty acid metabolism disorders in rats. In general, the above abnormalities were improved after 10 weeks intervention of ACF, ACP, and ACFP. Especially, ACFP considerably ameliorated HF-induced abnormal changes in body weight gain, serum TC, TG, LDL-C and HDL-C levels, as well as serum and hepatic SFAs, MUFAs and PUFAs contents. ACFP also alleviated HF-induced hyperglycemia and hyperinsulinemia, stabilized HF-caused increase in hepatic MDA and serum ALT, AST levels, and restored HF-declined hepatic T-SOD and GSH-Px activities. Besides, histopathology of the liver further endorsed the protective effects of ACFP on hepatocellular injury. Moreover, ACFP increased HF-dropped acetic, propionic and butyric acid levels. Overall, ACFP employs more efficacious protective effects against HF-induced metabolic disorders and liver damage than ACF and ACP. This study delivers a scientific foundation for developing kiwifruit(counting peel)-based dietary supplements for those with glucolipid-metabolic disorders and liver damage.
基金National Natural Science Foundation of China(41871367)Ministry of Science and Technology of the People’s Republic of China(2018YFE0206100)。
文摘Dense matching of remote sensing images is a key step in the generation of accurate digital surface models.The semi-global matching algorithm comprehensively considers the advantages and disadvantages of local matching and global matching in terms of matching effect and computational efficiency,so it is widely used in close-range,aerial and satellite image matching.Based on the analysis of the original semi-global matching algorithm,this paper proposes a semi-global high-resolution remote sensing image that takes into account the geometric constraints of the connection points and the image texture information based on a large amount of high-resolution remote sensing image data and the characteristics of clear image texture.123123The method includes 4 parts:①Precise orientation.Aiming at the system error in the image orientation model,the system error of the rational function model is compensated by the geometric constraint relationship of the connecting points between the images,and the sub-pixel positioning accuracy is obtained;②Epipolar image generation.After the original image is divided into blocks,the epipolar image is generated based on the projection trajectory method;③Image dense matching.In order to reduce the size of the cost space and calculation time,the image is pyramided and then semi-globally matched layer by layer.In the matching process,the disparity map expansion and erosion algorithm that takes into account the image texture information is introduced to restrict the disparity search range and better retain the edge characteristics of the ground objects;④Generate DSM.In order to test the matching effect,the weighted median filter algorithm is used to filter the disparity map,and the DSM is obtained based on the principle of forward intersection.Finally,the paper uses the matching results of WordView3 and Ziyuan No.3 stereo image to verify the effectiveness of this method.
基金The National Key Research and Development Program of China(No.2016YFB0500304)The Fund of Beijing Key Laboratory of Urban Spatial Information Engineering(No.2017212)The Advanced Project of Urban Design Big Data Acquisition and Processing(30059917306)
文摘Dense matching of remote sensing images is a key step in the generation of accurate digital surface models.The semi-global matching algorithm comprehensively considers the advantages and disadvantages of local matching and global matching in terms of matching effect and computational efficiency,so it is widely used in close-range,aerial and satellite image matching.Based on the analysis of the original semi-global matching algorithm,this paper proposes a semi-global high-resolution remote sensing image that takes into account the geometric constraints of the connection points and the image texture information based on the large amount of high-resolution remote sensing image data and the characteristics of clear image texture.The method includes 4 parts:(1)Precise orientation.Aiming at the system error in the image orientation model,the system error of the rational function model is compensated by the geometric constraint relationship of the connecting points between the images,and the sub-pixel positioning accuracy is obtained;(2)Epipolar image generation.After the original image is divided into blocks,the epipolar image is generated based on the projection trajectory method;(3)Image dense matching.In order to reduce the size of the cost space and calculation time,the image is pyramided and then semi-globally matched layer by layer.In the matching process,the disparity map expansion and erosion algorithm that takes into account the image texture information is introduced to restrict the disparity search range and better retain the edge characteristics of the ground objects;(4)Generate DSM.In order to test the matching effect,the weighted median filter algorithm is used to filter the disparity map,and the DSM is obtained based on the principle of forward intersection.Finally,the paper uses the matching results of WordView3 and Ziyuan No.3 stereo image to verify the effectiveness of this method.
基金funded by research grants including the National Key Research and Development Program of China(2022YFF1102200)the National Natural Science Foundation of China(31972183)+5 种基金the Open Project of China Food Flavor and Nutrition Health Innovation Center(CFC2023B-039)the Xi’an Advanced Manufacturing Technology and Key Project(21XJZZ0008)the Fundamental Research Fund of the Central University(GK202206038)the National Natural Science Foundation of China(NO.22275073)the Guangzhou Basic and Applied Basic Research Foundation(2024A04J35972025A03J3631).
文摘Micro/nanomotors,as dynamic micro/nano carriers,enhance reaction rates,reduce costs,and enable multifunctional tasks through functionalization.As alternatives to traditional detection and processing methods,a variety of functionalized MNMs have been developed,with preliminary applications explored in food safety detection and auxiliary processing.This review summarizes the propulsion mechanisms of MNMs tailored for food matrices,covering chemical-fueled propulsion(e.g.,water,acid,H_(2)O_(2),glucose)and external-fieldcontrolled propulsion(e.g.,magnetic,light,ultrasonic).It highlights the strengths and limitations of MNMs in food safety detection(e.g.,pathogens,toxins,heavy metals)and auxiliary processing(e.g.,sterilization,allergen removal,water purification),emphasizing their high reaction efficiency and recyclability.However,challenges such as scalable and low-cost preparation,intelligent control,and biocompatibility must be addressed to advance practical applications.Future research should focus on homogenized fabrication techniques,multifunctional integration,and expanding MNMs’roles in nutrient delivery and real-time monitoring.Addressing these gaps will unlock their full potential in revolutionizing food safety and industrial processing,paving the way for sustainable and intelligent food systems.
基金funded by research grants including the National Key Research and Development Program of China(2022YFF1102200)the National Natural Science Foundation of China(31972183)+2 种基金the Open Project of China Food Flavor and Nutrition Health Innovation Center(CFC2023B-039)the Xi’an Advanced Manufacturing Technology and Key Project(21XJZZ0008)the Fundamental Research Fund of the Central University(GK202206038).
文摘β-lactoglobulin(β-LG),a strong allergen,is widely present in milk.The separation of β-LG plays an important role in research on reducing milk allergenicity.In this study,we successfully prepared a magnetic imprinting micromotor driven by decomposing H_(2)O_(2),which helps to selective dynamic removal of β-LG in milk processing,thereby reducing milk allergenicity.This micromotor consists of a conductive polymer material called PEDOT/PSS,which selectively binds β-LG through its surface imprinting layer.The deposition of the Ni layer gives the micromotor a good magnetic recycling ability,which enables efficient reuse,and the innermost Pt layer promotes the movement of the micromotor through the catalytic decomposition of H_(2)O_(2),generating O_(2) bubbles to achieve dynamic and efficient adsorption of β-LG.In the experiments,the micromotor exhibited excellent kinematic performance in 1.0%H_(2)O_(2) solution(90-130μm/s).Protein adsorption experiments demonstrated the excellent selective adsorption ability of the imprinting layer to the target proteins and the magnetic recycling reuse ability.Its maximum adsorption of β-lactoglobulin from actual milk samples was 18.8μg/mg,the recycling rate is above 90%.Molecular docking experiments elucidated the possible mechanism for the adsorption of β-LG by the imprinting layer.Processing experiments on real milk samples proved the feasibility of its application in real milk processing.This study combines the advantages of bubble-driven micromotors to accelerate fluid mixing and transfer with the selective adsorption ability of molecularly imprinted polymer layers on target molecules,thus providing a feasible idea for the separation and removal of allergenicβ-LG in milk processing.
