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Nondestructive perception of potato quality in actual online production based on cross-modal technology

International Journal of Agricultural and Biological Engineering 2023年第6期16卷 280-290页

作者： Qiquan Wei Yurui Zheng Zhaoqing Chen Yun Huang Changqing Chen Zhenbo Wei Shuiqin Zhou Hongwei Sun Fengnong Chen School of Automation Hangzhou Dianzi UniversityHangzhou 310018China School of Information Engineering and Internet of Things Huzhou Vocational and Technical CollegeHuzhou 313000ZhejiangChina Jinhua Academy of Agricultural Sciences Jinhua 321017ZhejiangChina college of Biosystems Engineering and Food Science Zhejiang UniversityHangzhou 310058China Fair Friend Institute of Intelligent Manufacturing Hangzhou Vocational and Technical CollegeHangzhou 310018China

Nowadays,China stands as the global leader in terms of potato planting area and total potato *** rapid and nondestructive detection of the potato quality before processing is of great significance in promoting rural revitalization and augmenting farmers’***,existing potato quality sorting methods are primarily confined to theoretical research,and the market lacks an integrated intelligent detection ***,there is an urgent need for a post-harvest potato detection method adapted to the actual production *** study proposes a potato quality sorting method based on cross-modal ***,an industrial camera obtains image information for external quality detection.A model using the YOLOv5s algorithm to detect external green-skinned,germinated,rot and mechanical damage ***/NIR spectroscopy is used to obtain spectral information for internal quality detection.A convolutional neural network(CNN)algorithm is used to detect internal blackheart disease *** mean average precision(mAP)of the external detection model is 0.892 when intersection of union(IoU)=*** accuracy of the internal detection model is 98.2%.The real-time dynamic defect detection rate for the final online detection system is 91.3%,and the average detection time is 350 ms per *** contrast to samples collected in an ideal laboratory setting for analysis,the dynamic detection results of this study are more applicable based on a real-time online working *** also provides a valuable reference for the subsequent online quality testing of similar agricultural products.

关键词： cross-modal technology potato quality YOLOv5s VIS/NIR spectroscopy online nondestructive detection

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Remediation of Cu Contaminated Soil by Fe_(78)Si_(9)B_(13)^(AP)Permeability Reaction Barrier Combined with Electrokinetic Method

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Journal of Renewable Materials 2023年第6期11卷 2969-2983页

作者： Liefei Pei Xiangyun Zhang Zizhou Yuan School of Materials Science and Engineering Lanzhou University of TechnologyLanzhouChina School of Mining and Metallurgy Engineering Baiyin Mining and Metallurgy Vocational and Technical CollegeBaiyinChina

Iron-based amorphous crystalline powder Fe_(78)Si_(9)B_(13)^(AP)is used as a permeability reaction barrier(PRB)combined with an electrokinetic method(EK-PRB)to study the removal rate of Cu in contaminated *** treating Cucontaminated soil for 5 days under different voltage gradients and soil water content,the soil pH is between 3.1 and *** increase of voltage gradient and soil water content can effectively promote the movement of Cu^(2+) to the *** voltage gradient is 3 V/cm,and the water content of 40%is considered to be an optional experimental ***,under this condition,the effects of Fe_(78)Si_(9)B_(13)^(AP)and zero-valent iron(ZVI)as PRB on the removal rate of total Cu in soil and the transformation of chemical forms of Cu are *** with ZVI,Fe_(78)Si_(9)B_(13)^(AP)as PRB has a better remediation ***-Fe_(78)Si_(9)B_(13)^(AP)can remove 80.3%of total Cu in soil,and the biologically available Cu is reduced to 3.6%,which effectively reduces the environmental risk of contaminated soil.

关键词： Soil contamination amorphous alloy electrokinetic method immobilization

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Characterization of aroma compounds of Pu-erh ripen tea using solvent assisted flavor evaporation coupled with gas chromatography-mass spectrometry and gas chromatography-olfactometry

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Food Science and Human Wellness 2022年第3期11卷 618-626页

作者： Bei Wang Qing Meng Lin Xiao Ruili Li Chunhai Peng Xueli Liao Jingna Yan Honglin Liu Guanhua Xie Chi-Tang Ho Huarong Tong college of Food Science Southwest UniversityChongqing 400715China Guizhou Aerospace vocational and technical college Zunyi 563000China Department of Food Science Rutgers UniversityNew BrunswickNJ 08901USA

Pu-erh ripen tea becomes popular worldwide owing to its unique taste and *** the present study,volatile compounds from Pu-erh ripen tea were extracted using a solvent assisted flavor evaporation(SAFE)and analyzed with a gas chromatography-mass spectrometry(GC-MS)and a gas chromatography olfactometry(GC-O).Results demonstrated that 58 major volatile compounds and 24 aroma active substances of Pu-erh ripen tea were identified by GC-MS and GC-O *** volatile compounds identified,methoxyphenyl compounds were considered as the dominate compounds in the aroma of Pu-erh ripen *** investigation showed that 6 methoxybenzenes were responsible for the aging aroma in Pu-erh ripen tea;α-ionone,3,4-dimethoxytoluene,1,3-dimethoxybenzene,*** responsible for the wood-like ***,α-terpineol,α-ionone,β-ionone,and benzeneacetaldehyde were responsible for the floral *** the odor detection threshold(ODT)among the 8 methoxyphenyl compounds in water,1,2,3-trimethoxybenzene showed the highest ODT,followed by 3,4-dimethoxyphenol.1,3-dimethoxybenzene(105μg/L)and 1,2,3-trimethoxy-5-methylbenzene(100μg/L)were present at relatively low odor threshold *** result indicated that methoxyphenyl compounds play a vital role in the unique flavor of Pu-erh ripen tea.

关键词： Pu-erh ripen tea SAFE GC-MS GC-O Methoxyphenyl compounds

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Research on Site Planning of Mobile Communication Network

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Journal of Applied Mathematics and Physics 2022年第9期10卷 2708-2719页

作者： Yunshuo Chen Fanqiang Fu Zunyi vocational and technical college Zunyi China

With the development of 5G technology, network communication has become the most commonly used tool in People’s Daily life and production. Due to the huge user base, the problem of site selection of communication network has become more and more complex. This paper mainly studies the problem of mobile communication network site planning, using 0 - 1 planning knapsack model, heuristic algorithm, simulated annealing algorithm and other methods, combined with MATLAB software to effectively solve the location of site coordinates and the type of base station selection, give the optimal results of site selection. It has certain guiding significance to mobile communication network site planning.

关键词： Mobile Communication Knapsack Model Heuristic Algorithm Simulated Annealing Algorithm MATLAB Software

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Microstructure of Fe-Based Alloy Composite Coatings Reinforced by Ti(C_(0.3)N_(0.7)) Particles Through Laser Cladding Technology

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Journal of Iron and Steel Research(International) 2013年第8期20卷 78-82页

作者： QI Yong-tian CAO Zhao-xia SHENG Li-ying CAO Run-ping Inner Mongolia Baotou vocational and technical college

Fe-based alloy layer reinforced by Ti（C,N） particles was produced on the surface of cast steel. X ray dif fraction （XRD） was used for phase identification in the composite coating. The microstructure of laser cladding layer was analyzed by means of optical microscope （OM）, electron probe microscope analyzer （EPMA）, scanning electron microscope （SEM） and transmission electron microscope （TEM）. The results show that Ti（C0.3 N0.7 ） particle is in-troduced by an in situ metallurgical reaction of TiN particle and graphite powder in the process of laser cladding. The shape of lots of Ti（C0.3 N0.7） particle is irregular. The sizes of Ti（C0. 3N0. 7） particles range from 0. 1 to 6.0 μm, and they are dispersed evenly in the matrix, which is fine dendritic or cellular crystal. A new kind of phase named Ti（C0.3 N0. 7 ） parti-cles are tightly bonded with α-Fe microstructure, and there is a clean and smooth phase interface between ceramic re-inforcement phase and the matrix.

关键词： Ti(C0.3 N0.7 ) particle TiN laser cladding microstructure

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Crafting of plasmonic Au nanoparticles coupled ultrathin BiOBr nanosheets heterostructure: steering charge transfer for efficient CO_(2) photoreduction

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Green Chemical Engineering 2022年第2期3卷 157-164页

作者： Gaopeng Liu Lin Wang Xin Chen Xingwang Zhu Bin Wang Xinyuan Xu Ziran Chen Wenshuai Zhu Huaming Li Jiexiang Xia School of Chemistry and Chemical Engineering Institute for Energy ResearchJiangsu UniversityZhenjiang212013China Department of Architecture and Environment Engineering Sichuan Vocational and Technical CollegeSuining629000China

Integrating semiconductor photocatalysts with outstanding visible light absorption and fast surface/interface charge transfer kinetics is still an enormous challenge for efficient CO_(2)*** this work,the Au nanoparticles have been coupled with ultrathin BiOBr nanosheets,the formed heterostructure(Au/BiOBr)pos-sesses a localized surface plasmon resonance(LSPR)and enhances the visible light absorption ability,as well as forms a fast charge transport channel on the interface between Au and ***,the heterostructure photo-catalyst exhibits higher photocatalytic CO_(2)to CO performance(135.3/16.43μmol g^(-1))than that of BiOBr(89.0/6.46μmol g^(-1))under 300 W Xe lamp and visible light(λ>400 nm)irradiation for 5 h,***,the in situ FT-IR spectroscopy revealed CO_(2)photoreduction process and found that the*COOH is the key intermediate for CO_(2)to *** work provides an effective method to construct multielectron transfer scheme for efficient photocatalytic CO_(2)reduction.

关键词： Au nanoparticles BiOBr Localized surface plasmon resonance Charge transfer CO_(2)photoreduction

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A Preliminary Study of Stative Verbs and Dynamic Verbs in English

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中国校外教育(理论) 2008年第S1期 1022-1022页

作者：李淑明 meishan vocational and technical college

Verbs can be divided as 'stative'and 'dynamic'in relation to whether they admit the aspectual contrast of'progressive'and'non-progressive'.This paper focuses on the differences between stative verbs and dynamic verbs by comparing and analysing their *** will aim to help us to learn the grammatical structures of the verbs and understand the deep semantic meaning of the verbs as well.

关键词： Stative Verbs Dynamic Verbs Eglish Teaching

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The Use of Interaction in Oral English Teaching at Higher vocational college

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海外英语 2018年第13期 248-249页

作者：余莲君 meishan vocational and technical college

Interactional teaching is one of the most effective teaching methods adopted in English teaching at higher vocational *** contributes to students’language competence in English *** this passage,the definition of inte... 详细信息

关键词： use interaction English teaching

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Conservation management decreases surface runoff and soil erosion

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International Soil and Water Conservation Research 2022年第2期10卷 188-196页

作者： Xuan Du Jinshi Jian Can Du Ryan D.Stewart Department of Hydraulic Engineering Yangling Vocational&Technical CollegeYang LingShaanxiChina State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau Northwest A&F UniversityYangling712100China Pacific Northwest National Laboratory-University of Maryland Joint Global Change Research Institute 5825 University Research CourtSuite3500College ParkMDUSA Department of Bioengineering Yangling Vocational&Technical CollegeYang LingShaanxiChina School of Plant and Environmental Sciences Virginia

Conservation management practices e including agroforestry,cover cropping,no-till,reduced tillage,and residue return e have been applied for decades to control surface runoff and soil erosion,yet results have not been integrated and evaluated across cropping *** this study we collected data comparing agricultural production with and without conservation management *** used a bootstrap resampling analysis to explore interactions between practice type,soil texture,surface runoff,and soil *** then used a correlation analysis to relate changes in surface runoff and soil erosion to 13 other soil health and agronomic indicators,including soil organic carbon,soil aggregation,infil-tration,porosity,subsurface leaching,and cash crop *** all conservation management practices,surface runoff and erosion had respective mean decreases of 67%and 80%compared with *** of cover cropping provided the largest decreases in erosion and surface runoff,thus emphasizing the importance of maintaining continuous vegetative cover on ***-and medium-textured soils had greater decreases in both erosion and runoff than fine-textured *** in surface runoff and soil erosion under conservation management were highly correlated with soil organic carbon,aggregation,porosity,infiltration,leaching,and yield,showing that conservation practices help drive important in-teractions between these different facets of soil *** study offers the first large-scale comparison of how different conservation agriculture practices reduce surface runoff and soil erosion,and at the same time provides new insight into how these interactions influence the improvement or loss of soil health。

关键词： Conservation management Soil erosion Runoff Meta-analysis Soil he

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Surface-induced Morphologies of ABC Star Triblock Copolymer in Spherical Cavities

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Chinese Journal of Polymer Science 2015年第11期33卷 1503-1515页

作者： Wen-bo Jiang Yong-yun Ji Wen-chang Lang 李士本王向红 Department of Physics Wenzhou University Department of Physics Wenzhou Vocational and Technical College

The morphologies and phase diagrams exhibited by symmetric ABC star triblock copolymer nanoparticles are investigated on the basis of real-space self-consistent field theory. The ABC star triblock copolymers were chosen to be tiling-forming with fixed polymer parameter and the spherical boundaries were modeled using the masking technique. We first study a number of examples where the ABC triblock copolymers confined in spherical cavities with neutral surface. Then, two types of spherical cavity distinct preferential surfaces are considered, including both A-block attractive and repulsive preferential surfaces. We aim at the effects due to various spherical cavity diameters and the degree of interactions between the polymer and the spherical surface. A variety of morphologies, such as ring-like structures, concentric sphere, and irregular cylinder, were identified in phase diagrams. The results show that both the degree of interactions and spherical diameters can influence the formation of morphologies so that ring-like structures and other novel structures could be obtained.

关键词： Morphology Star triblock copolymer Spherical cavity SCFT

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