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Articles 4831 - 4860 of 33722

Full-Text Articles in Agriculture

Study On Physicochemical Properties And Pyrolysis Properties Of Heated Non Combustion Tobacco Sheet, Xi Pan, Xu-Yan Song, Min Wei, Ran Li, Ai-Jun Dong, Jun-Jian An, Lei Wang Feb 2023

Study On Physicochemical Properties And Pyrolysis Properties Of Heated Non Combustion Tobacco Sheet, Xi Pan, Xu-Yan Song, Min Wei, Ran Li, Ai-Jun Dong, Jun-Jian An, Lei Wang

Food and Machinery

In order to evaluate the safety of heat-not-burn tobacco sheets during suction and establish the theoretical basis for adding flavors and fragrances in the process of heat-non-burn cigarettes, the mainstream heating-not-burn tobacco samples from domestic and foreign markets were comprehensively analyzed from physical and chemical indicators, thermogravimetric analysis and pyrolysis analysis. The results showed that: the content of hot water extract was 49.98%~66.59%, which difference was not remarkable. And the content of total sugar was 6.62%~28.93%, the content of reducing sugar was 4.79%~22.30%, the content of total alkaloid was 0.14%~1.13%, the content of total nitrogen was 0.31%~2.50%, and the content …

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Monitoring And Analysis On Microbes In Edible Areca Processing, Wen-Xiang Li, Feng Li, Song-Hang Zhou, Xiao Yuan, Xiong-Wei Huang, Bu-Cheng Xu, Juan Luo Feb 2023

Monitoring And Analysis On Microbes In Edible Areca Processing, Wen-Xiang Li, Feng Li, Song-Hang Zhou, Xiao Yuan, Xiong-Wei Huang, Bu-Cheng Xu, Juan Luo

Food and Machinery

To investigate the sanitary conditions of edible areca processing, improve the quality and safety of products, using spot investigation and lab test method, monitor the sanitary conditions of products and the processing environment in edible areca enterprise. The monitoring data will help the revision of detailed rules for the review of areca production licenses. The result shows, areca nuts storage condition improving and enhance the disinfection of production tools and workers, will effetely control the microbial contamination in production process, ensure the quality of products.

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Optimized Model Of Dual-Chain Storage Of Food Supply Chain Data Based On Blockchain, Sheng-Qiao Gao, Xin-Liang Liu, Yan-Ping Gao Feb 2023

Optimized Model Of Dual-Chain Storage Of Food Supply Chain Data Based On Blockchain, Sheng-Qiao Gao, Xin-Liang Liu, Yan-Ping Gao

Food and Machinery

The emergence of blockchain provides a solution of decentralized integration of resources and elimination of information asymmetry for food supply chain, but most of the current solutions are facing performance and storage bottlenecks. In response to this problem, this paper proposes a dual-chain storage optimized model for food supply chain data based on blockchain. The model builds a double-chain structure of the main chain and the digest chain. Nodes can choose the appropriate storage mode according to their needs, which alleviates the problem of block storage expansion. By adopting the improved Delegated Proof of Stake and Byzantine fault tolerance consensus …

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The Improvement Of Administrative Penalty Power Under The Framework Of New Food Safety Law Implementation Regulations, Qi Xu Feb 2023

The Improvement Of Administrative Penalty Power Under The Framework Of New Food Safety Law Implementation Regulations, Qi Xu

Food and Machinery

The strict legal responsibility and administrative punishment standards specified and set in the new regulations for the implementation of the food safety law are major achievements of the rule of law in implementing the food safety law. At present, the main problems faced by the implementation of the regulations are that the boundary of "punishment to people" is not clear and the application of "excessive punishment is equivalent" is not coordinated. In order to realize "good law and good governance", it is necessary to further standardize the exercise procedure of administrative penalty power and clarify the applicable standards of administrative …

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Establishment And Improvement Of Safety Supervision Mechanism Of Online Take-Out Food, Yong-Gang Wang Feb 2023

Establishment And Improvement Of Safety Supervision Mechanism Of Online Take-Out Food, Yong-Gang Wang

Food and Machinery

This paper analyzes the current situation and types of supervision mechanism of online takeout food safety, analyzes the reasons of the problems existing in the mechanism, and perfects the feasibility of China's online takeout food safety supervision mechanism.。

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Research On The Application Of Digital Signature Technology In The Traceability Of Food Origin, Chun Liu, Zhu-Hong Liu Feb 2023

Research On The Application Of Digital Signature Technology In The Traceability Of Food Origin, Chun Liu, Zhu-Hong Liu

Food and Machinery

Through the introduction of digital signature technology, the specific and different application scenarios of various digital signature technologies were introduced. The basic principles and methods of food origin traceability were also discussed. The application of various digital signature techniques in food origin traceability was investigated, and the accuracy of food origin traceability cases based on different digital signature techniques was compared and studied. The development trend of digital signature technology in the field of food origin traceability was prospected.

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Experimental Investigation Of Dehumidification Characteristics Of Closed Drying System With Heat Pump, Wen-Liang Zeng, Bo-Ling Chen, Xuan Chen, Xue-Fei Jie Feb 2023

Experimental Investigation Of Dehumidification Characteristics Of Closed Drying System With Heat Pump, Wen-Liang Zeng, Bo-Ling Chen, Xuan Chen, Xue-Fei Jie

Food and Machinery

It was studied the performance characteristics such as specific moisture extraction rate (SMER) of closed heat pump drying system with the condition of different air mass-flow-rate, relative humidity and with or without heat pipe. The results showed that the effects of heat pipe on SMER of closed heat pump drying system were very significant, and the application of heat pipe could enhance the system SMER by 20%~200% under test conditions. Under the condition of the constant temperature and constant relative humidity, the SMER of the system had a maximum value while the air mass-flow-rate was between 0.2~0.4 kg/s. With constant …

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Identification Of Fig Maturity Based On Near-Infrared Spectroscopy And Partial Least Square-Discriminant Analysis, Jing-Yu Zhou, Rui Sun, Duo Yu, Yu-Xuan Lv, Yan-Ling Han Feb 2023

Identification Of Fig Maturity Based On Near-Infrared Spectroscopy And Partial Least Square-Discriminant Analysis, Jing-Yu Zhou, Rui Sun, Duo Yu, Yu-Xuan Lv, Yan-Ling Han

Food and Machinery

In order to distinguish figs of different maturity accurately and quickly without damage, the samples of figs were collected by near-infrared spectroscopy, and K-means clustering was carried out for five indexes of fig sugar degree, single fruit weight, vertical diameter, horizontal diameter and hardness. According to the spectral data and the score chart of principal component analysis, the components of the optimal clustering effect and the index distribution of each category were determined. Based on the PLS-DA model, the cluster discrimination model was constructed to achieve the purpose of fruit maturity classification. Through the analysis of the differences of the …

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Study On Antioxidant Effect Of Flavonoids From Artemisia Argyi And Its Application In Preservation Of Fresh Grade Breast, Yu-Hua Yang, Yan Huang, Wei-Peng Zheng Feb 2023

Study On Antioxidant Effect Of Flavonoids From Artemisia Argyi And Its Application In Preservation Of Fresh Grade Breast, Yu-Hua Yang, Yan Huang, Wei-Peng Zheng

Food and Machinery

In this paper, the total reducing power, O ·, ·OH and DPPH· scavenging capacity of the flavonoids from Artemisia argyi were studied by ultrasonic assisted extraction and macroporous resin purification. The changes of pH values, TBARS, TVB-N, redness value, hydrogen sulfide and other physical and chemical indexes of fresh grade breast and its effects on sensory quality were investigated .The results showed that the purified flavonoids from Artemisia argyi had a strong total reduction power and a good linear relationship, with the good scavenging ability for O ·, ·OH, and DPPH·, and the scavenging ability has a certain dose-effect relationship …

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Antimicrobial Activity Of Chrysanthemum Buds Aqueous Extract On Escherichia Coli And Its Application, Peng Fei, Min Xing, Chao-Qin Jiao, Bao-Xin Yang, Xin-Ying Hu, An-Ran Shao, Lin Lu, Huai-Bin Kang, Ling Guo Feb 2023

Antimicrobial Activity Of Chrysanthemum Buds Aqueous Extract On Escherichia Coli And Its Application, Peng Fei, Min Xing, Chao-Qin Jiao, Bao-Xin Yang, Xin-Ying Hu, An-Ran Shao, Lin Lu, Huai-Bin Kang, Ling Guo

Food and Machinery

The purpose of this study was to evaluate the antimicrobial activity of Chrysanthemum buds aqueous extract (CBAE) on Escherichia coli, and discuss its application in meat products. The antimicrobial activity of CBAE against E. coli was evaluated by the determination of diameter of the inhibition zone (DIZ), minimum inhibitory concentration (MIC), and minimum bactericidal concentration (MBC). The possible action mechanism was revealed by the effect of CBAE on the growth curve, and the changes in intracellular ATP concentration, cell membrane potential, and cell morphology. Finally, the CBAE was used in the preservation of cooked pork. The results showed that the …

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Effects Of Irradiated Proces On Hypoglycemic Activity Of Inonotus Obliquus Polysaccharide, Lu Zhang, Xin Jiang, Li-Ying Jin, Chang-Qing Lin, Cheng-Bi Cui Feb 2023

Effects Of Irradiated Proces On Hypoglycemic Activity Of Inonotus Obliquus Polysaccharide, Lu Zhang, Xin Jiang, Li-Ying Jin, Chang-Qing Lin, Cheng-Bi Cui

Food and Machinery

The effect of 60Co-γ ray irradiation on hypoglycemic activity of polysaccharides from Inonotus obliquus was explored. The polysaccharides of Inonotus obliquus under the irradiation doses of 5, 10, 20 and 30 kGy were extracted and their contents were determined. The experiment was performed on a mouse model of type I diabetes induced by streptozotocin (STZ) according to the grouping dose. The body weight, food intake and water intake of the mice were measured every day during the experiment, blood glucose levels were measured every 7 days, and glucose tolerance test (OGTT) was performed 30 days later. Blood samples were …

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Purification Of Polyphenols From Dendrobium Huoshanense By Macroporous Resin And Its Antioxidant Activity, Ming-Wei Chen, Ming Wei, Liang-Fan Tao, Sen-He Qian Feb 2023

Purification Of Polyphenols From Dendrobium Huoshanense By Macroporous Resin And Its Antioxidant Activity, Ming-Wei Chen, Ming Wei, Liang-Fan Tao, Sen-He Qian

Food and Machinery

In this study, the ideal adsorbent for Dendrobium hu-oshanense polyphenols were obtained, after the comparison test for the adsorption-desorption properties of different types of resins. The purification parameters were optimized by adsorption and desorption tests. The antioxidant activities of polyphenols were evaluated in vitro. The results showed that AB-8 macroporous resin was considered as suitable material for purifying and separating Dendrobium huoshanense polyphenols.And the macroporous resin reached equilibrium within 150 min. The optimal processing parameters were as follows: an initial polyphenol concentration of 2.0 mg/mL, pH 4.0, a flow rate of 1.0 mL/min for feeding and a flow rate of …

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Effect Of Extraction Method On The Functional Characteristics Of Leaf Protein From Green Leaves Ramie, Shi-Qi Zhi, Man-Sheng Wang, Feng-Ling Ye, Long Chen, Xiao-Ting Zhang, Hao-Nan Qiu, Qiang He, Xia-Yu Xiong, Yi Dong Feb 2023

Effect Of Extraction Method On The Functional Characteristics Of Leaf Protein From Green Leaves Ramie, Shi-Qi Zhi, Man-Sheng Wang, Feng-Ling Ye, Long Chen, Xiao-Ting Zhang, Hao-Nan Qiu, Qiang He, Xia-Yu Xiong, Yi Dong

Food and Machinery

In this paper, 3 kinds of methods such as ultrasonic assisted alkali solution extraction, salt solution extraction and water extraction, were used to extract the green leaf ramie protein, and the protein was also analyzed on the protein concentration, nitrogen solubility index, foaming property, foaming stability, emulsifying property and emulsifying stability. Results: The protein extracted with ultrasonic assisted salt solution exhibited the highest protein concentration (10.73 mg/mL) and nitrogen dissolution index (61.95%). Additionally, the foaming property (26.34%) and foam stability (24.49%) of the protein extracted by this method were significantly better than the other two extraction methods. The protein extracted …

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Separation And Purification Of Polysaccharides From Liquid Fermentation Product By Cordyceps Tenuipes, Xiao-Ai Wang, Jian-Dong Liang, Xiao-Jiao Gao, Yuan-Jun Cai, Yu-Meng Qin, Wei-Yi Tian Feb 2023

Separation And Purification Of Polysaccharides From Liquid Fermentation Product By Cordyceps Tenuipes, Xiao-Ai Wang, Jian-Dong Liang, Xiao-Jiao Gao, Yuan-Jun Cai, Yu-Meng Qin, Wei-Yi Tian

Food and Machinery

Using Box-Behnken central combination test design and single factor test were used to optimize the fermentation process of cordyceps polysaccharide, water extraction and alcohol precipitation process and deproteinization process. The results showed that the optimum fermentation conditions of Cordyceps tenuipes were glucose 33.3 g/L, peptone 29.2 g/L, inoculation amount 3.9%. The optimum extraction conditions of Exopolysaccharides were concentration, 3 times ethanol, pH 6.0 and precipitation for 24 h. The optimum extraction conditions were 1∶40 (g/mL), extraction time 90 min, extraction times 2 times, and extraction temperature 80 ℃. In the purification of polysaccharides, the optimum deproteinization techniques of Sevage were …

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Evaluation Of The Brewing Effect Of Ultrafine Green Tea Powder By Simulated In Vitro Digestion, Yao Zhou, Hua-Rong Tong Feb 2023

Evaluation Of The Brewing Effect Of Ultrafine Green Tea Powder By Simulated In Vitro Digestion, Yao Zhou, Hua-Rong Tong

Food and Machinery

The release of various substances before and after in vitro di-gestion of ultrafine green tea powder was measured.The results showed that the release of free amino acids, total phenols, total flavones and most catechins declined during the in vitro digestion of ultrafine green tea powder; caffeine remained un-changed; The release of soluble protein, gallic acid, catechin gallate, gal-locatechin, gallocatechin gallate, and isoquercetin increased. The non-extractable polyphenols were released. Brewing and drinking ultrafine green tea powder are beneficial to improve the comprehensive utilization of tea by the human body.

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Determination Of Blending Uniformity Of Cut Tobacco Based On Near Infrared Spectroscopy, Ke-Wen Zhao, Shi Chen, Hao Jiang, Long-Jun Li, Ze-Song Luo, Zhong-Wei Yin, Xing-Lin Zhang, Jing Liu Feb 2023

Determination Of Blending Uniformity Of Cut Tobacco Based On Near Infrared Spectroscopy, Ke-Wen Zhao, Shi Chen, Hao Jiang, Long-Jun Li, Ze-Song Luo, Zhong-Wei Yin, Xing-Lin Zhang, Jing Liu

Food and Machinery

In order to establish rapid evaluation method of tobacco, cut stem and reconstituted tobacco, multiply ratios of sugars to alkali by potassium was selected as blending homogeneity evaluation index sign. Based on tobacco (500), cut stem (500), reconstituted tobacco (250) and the formula of tobacco production line (30) of the near-infrared spectral information and blending evenness index data, the pattern recognition model and the marker correction model of evenness index data of tobacco, cut stem and reconstituted tobacco were built. The results showed as follows. ① The overall information of near-infrared spectra of the three tobacco samples were differences. ② …

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Progress In The Study Of Chelate Activity Of Polypeptide Minerals From Different Sources, Yu-Hang Lou, Hong-Yan Xu, Xin-Xiu Xia, Xi-Ming Yang, Chao Wang Feb 2023

Progress In The Study Of Chelate Activity Of Polypeptide Minerals From Different Sources, Yu-Hang Lou, Hong-Yan Xu, Xin-Xiu Xia, Xi-Ming Yang, Chao Wang

Food and Machinery

In this paper, the preparation methods of chelating polypeptides from different sources with the metallic elements, such as calcium, iron, zinc and selenium, as well as the research progress on their antioxidant, antibacterial and immune-enhancing properties were reviewed, and the deficiencies of the existing researches were also analyzed.

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Analysis Of Pyrolytic Properties Of Polysaccharides And Its Application In Cigarette, Huan Liu, Gui-Lin Chu, Li He, Jie-Lun Hu, Hai-Tao Luo Feb 2023

Analysis Of Pyrolytic Properties Of Polysaccharides And Its Application In Cigarette, Huan Liu, Gui-Lin Chu, Li He, Jie-Lun Hu, Hai-Tao Luo

Food and Machinery

The types of polysaccharides that have been used in the research on moisturizing and flavoring of cigarettes are summarized. The types of pyrolysis products, pyrolysis mechanism, and the law of influence on cigarette moisturizing, flavor enhancement, and mainstream smoke are described in detail from the two aspects of cigarettes' own polysaccharides and externally added polysaccharides. The direction for future development is proposed.

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Progress In Saccharomyces Cerevisiae Genome Research And Relative Application, Bi-Yan Chen, Li Wen Feb 2023

Progress In Saccharomyces Cerevisiae Genome Research And Relative Application, Bi-Yan Chen, Li Wen

Food and Machinery

No abstract provided.

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Effects Of Three Methods Of Physical Modification On The Functional Properties Of Rice Protein, Yun-Hui Cheng, Hong-Qing Zhao, Li-Li Zhang, Wei-Xuan Du, Ye Jiao Feb 2023

Effects Of Three Methods Of Physical Modification On The Functional Properties Of Rice Protein, Yun-Hui Cheng, Hong-Qing Zhao, Li-Li Zhang, Wei-Xuan Du, Ye Jiao

Food and Machinery

Rice protein is a kind of high-quality plant protein, and its application in the food industry is restricted due to its low solubility. In this study, the rice protein was modified by heat treatment at different temperature, high pressure microfluidization treatment under different pressure and freezing and grinding at different temperature, and its solubility, emulsifying activity (EA), emulsifying stability, foaming activity (FA) and foaming stability of protein were investigated. After heat treatment at 200 ℃, the solubility of rice protein increased from 4.4% to 17.4%, and EA and FA were 3.2 and 1.9 times as high as the original, respectively. …

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Effects Of Different Production Seasons On Volatile Flavor Compounds Of Anyue Ceramic-Pot Sealed Meat, Wei Liu, Lan Xiao, Fang Yang, Juan Li, Lian He, Li-Xin Zhou, Kang Yang Feb 2023

Effects Of Different Production Seasons On Volatile Flavor Compounds Of Anyue Ceramic-Pot Sealed Meat, Wei Liu, Lan Xiao, Fang Yang, Juan Li, Lian He, Li-Xin Zhou, Kang Yang

Food and Machinery

The samples of Anyue ceramic-pot sealed meat produced in January, April, July and October were collected and analyzed by electronic nose, electronic tongue and headspace solid phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS). Artificial sensory evaluation showed that there was no significant difference in the flavor of each Anyue ceramic-pot sealed meat sample (P＞0.05). Electronic nose analysis showed that Anyue ceramic-pot sealed meat had significant difference in odor between January and April (P＜0.05), while other samples had no significant difference (P＞0.05). Electronic tongue analysis showed that Anyue ceramic-pot sealed meat produced in January and October had significant difference in taste (P＜0.01), and …

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Analysis Of Inorganic Elements In Russian Inonotus Obliquus, Wei Ma, Yang-Yang Tan, Shu-Juan Wei, Ce Tan, Qi Zhao, Ping-Ping Lv, Li Cheng Feb 2023

Analysis Of Inorganic Elements In Russian Inonotus Obliquus, Wei Ma, Yang-Yang Tan, Shu-Juan Wei, Ce Tan, Qi Zhao, Ping-Ping Lv, Li Cheng

Food and Machinery

To provide a basis of quality control and safety evalua-tion for developing medicine and functional food of Inonotus obliquus, 4 kinds of heavy metals including lead, cadmium, mercury, arsenic and 18 kinds of microelements including aluminum, boron, barium, calcium, tin, cobalt, copper, iron, potassium, magnesium, manganese, sodium, nickel, phosphorus, strontium, titanium, vanadium, zinc in different color, different part, and different products were detected by national standard, and relative statistical analyses were also carried out. Results showed that the contents of 22 inorganic elements in crude I. obliquus products were higher than that in refined I. obliquus products, while the …

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Simultaneous Determination Of Benzo[A]Pyrene And Its Structural Isomers In Mainstream Cigarette Smoke By Gc-Ms/Ms, Jie-Yun Cai, Hui-Ping Wang, Wei Liu, Xin-Rui Chen, Yan-Chun Xu, Xiao-Wei Ma, Chao Li Feb 2023

Simultaneous Determination Of Benzo[A]Pyrene And Its Structural Isomers In Mainstream Cigarette Smoke By Gc-Ms/Ms, Jie-Yun Cai, Hui-Ping Wang, Wei Liu, Xin-Rui Chen, Yan-Chun Xu, Xiao-Wei Ma, Chao Li

Food and Machinery

In this paper, employed an inter-standard quantitative method for determination of benzo[a]pyrene and its structural isomers (B[b]F, B[k]F, B[j]F, B[j]A, B[e]A, B[e]P, PER) in mainstream cigarette smoke by GC-MS/MS. The results showed that the LODs and the LOQs of target PAHs could achieve 0.056 6~0.181 7 and 0.188 6~0.605 5 ng/cig, respectively, while the linear correlation efficiencies are larger than 0.998 for all PAHs. The Intra-assay and Inter-assay precisions measured by 15 repeat runs are 1.91%~3.97% and 2.54%~4.46%, respectively. And with three different added-levels, the recovery rates for the target PAHs lie between 92.60% and 107.60%. It was proved that …

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Rapid Screening Of Three Kinds Of Guanidine Contraband In Auxiliary Sugar Reduction Capsule, Ying An, Ying Zhou, Jian-Bo Ji, Dong-Mei Ge Feb 2023

Rapid Screening Of Three Kinds Of Guanidine Contraband In Auxiliary Sugar Reduction Capsule, Ying An, Ying Zhou, Jian-Bo Ji, Dong-Mei Ge

Food and Machinery

A method for rapid screening and qualitative and quantitative determination of three biguanides, MH, PH and BH, in Jiangtang capsules by reversed-phase ion-pair-LC-MS was established and validated. Anagilent technologies C18 column (4.6× 250 mm, 5 μm) was used for the determination at 235 nm. A methanol-B ammonium acetate solution (0.01 mol/L) was used as the mobile phase for gradient elution at a flow rate of 0.5 mL/min. After the HPLC detection, the mass spectrometer for positive ion mode scanning was used for screening. The recovery of standard addition was 87.5%~108.4%, and the relative standard deviation was 0.5%~7.4%, with good precision …

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Research On Food Safety Management In Post Epidemic Period From The Perspective Of Supply Chain, Li Zhang Feb 2023

Research On Food Safety Management In Post Epidemic Period From The Perspective Of Supply Chain, Li Zhang

Food and Machinery

The characteristics of food supply chain and risks formation mechanism of key links of food safety based on the perspective of supply chain were reviewed, and the countermeasures of food risk management in the post-epidemic period was discussed. We proposed that strengthening the food safety risk management and establishing an information-sharing platform for food safety supply chain are urgent, and this will optimize the food safety organization and coordination mechanism, improving the food safety monitoring system.

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Simulation And Design Of Raking Knives Based On Bionic Design Method, Zhi-Feng Zhang, Jun-Xia Zhang, Yan Zhang Feb 2023

Simulation And Design Of Raking Knives Based On Bionic Design Method, Zhi-Feng Zhang, Jun-Xia Zhang, Yan Zhang

Food and Machinery

In order to shorten the filtration period of wort in the lauter tun and improve the quality of wort, A bionic raking knife suitable for the operation of the lauter tun was designed. The biological model of mole cricket claw teeth of its digging foot was reconstructed, and the dynamic process of claw teeth wedging into soil was simulated. According to the simulation results, the claw tooth T4 has the highest similarity with the design objectives of raking knife. The key contour curve is extracted from the biological model of claw tooth T4, and the curve formula is fitted with …

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Kinematics Analysis And Trajectory Research For Upper-Retort-Robot, Yi-Hui Qing, Shu-Qing Wang, Zi-Peng Zhang, Xi-Yue Zhou Feb 2023

Kinematics Analysis And Trajectory Research For Upper-Retort-Robot, Yi-Hui Qing, Shu-Qing Wang, Zi-Peng Zhang, Xi-Yue Zhou

Food and Machinery

In using the kinematics model to realize the control of the upper retort robot, for the special structure of the rotary upper retort robot, the forward kinematics model was established by improving the Denavit-Hartenberg method, and then the inverse solution expression was analyzed and verified. The simulation results of the workspace showed that the upper retort robot designed in this experiment could complete the tasks of tiling the whole layer and detecting the upper retort. Meanwhile, the hybrid curve method was used to generate the motion trajectory, and the time history of joint angle, angular velocity and acceleration were analyzed. …

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Research On Trajectory Optimization Algorithm Of Palletizing Robot Based On Jitter And Time, Xiao Lai Feb 2023

Research On Trajectory Optimization Algorithm Of Palletizing Robot Based On Jitter And Time, Xiao Lai

Food and Machinery

The palletizing robot was analyzed through its constructure, and constructed its kinematics model and expressed the function of the model. On this basis, used the cubic spline function to carry out reasonable trajectory planning according to the working conditions of the robot, and established the time and jitter as the most optimization model of optimal target. And then used particle swarm optimization to optimize the target model. Through further experimental verification, the results show that the trajectory planning method proposed in this paper can improve the efficiency of the palletizing robot while ensuring stability.

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New Cycle Temperature Measurement And Control System In Kojibank, Jia-Le Xu, Dan-Ping Huang, Jian-Ping Tian, Shao-Dong Yu, Dan Huang, Hui-Bo Luo, Ying Tian, Liang Liu Feb 2023

New Cycle Temperature Measurement And Control System In Kojibank, Jia-Le Xu, Dan-Ping Huang, Jian-Ping Tian, Shao-Dong Yu, Dan Huang, Hui-Bo Luo, Ying Tian, Liang Liu

Food and Machinery

In order to solve the problems of uneven fermentation of koji bticks, multiple temperature measurement points, complicated temperature structure and unsuitable fine-tuning and control of the temperature system in the traditional koji bank, a dual neural network control algorithm and internal circulation pipeline structure were proposed to achieve real-time temperature measurement and control of the koji bank. The internal air circulation in the room is also introduced. After experimental testing, the system works stably, and can accurately measure and control the ambient temperature of the koji bank during the fermentation process of the koji bricks, so that the temperature in …

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Design Of Bonding Device For Mounting Box And Analysis Of The Key Structure And Function, Ming-Min Dong, Ying Li, Chong-Chong Xie, Hai-Shan Li, Jian-Hui Yang Feb 2023

Design Of Bonding Device For Mounting Box And Analysis Of The Key Structure And Function, Ming-Min Dong, Ying Li, Chong-Chong Xie, Hai-Shan Li, Jian-Hui Yang

Food and Machinery

In order to adapt to the demand of diversification of gift box packaging, aiming at the low efficiency and high cost of the current production mode of artificial assembly line in packaging enterprises, an adhesive device for mounting box was designed. The device was based on the process of assembly line production mode and mainly composed of image acquisition unit, spray unit, grab unit and press unit. The image processing of a shell product and the motion simulation analysis of the manipulator were carried out in Matlab respectively. The result of image processing showed that Canny operator had better effect …

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