Agriculture Commons^™

Progress On Source, Detection Technique And Pollution Level Of The New Persistent Organic Pollutant In Infant Milk Powder, Shangguan Jia, Wu Hai-Zhi, Liang Jun, Wang Shu-Xia

Food and Machinery

This review summarized the research progress on the sources, analytical methods and levels of contamination of chloropropanol and glycidyl esters (GES), chlorates, perchlorate, polychlorinated biphenyls (PCBs), acrylamide, mineral oils, perfluorinated and polyfluoroalkyl compounds (PFASs) in infant milk powder, and the advantages and disadvantages of detection technology and the domestic and abroad pollution status at about new POPs of infant milk powder were also discussed. Moreover, the development and types of emerging POPs detection techniques for infant milk powder were also prospected.

Preparation And Application Of Thiabendazole Molecularly Imprinted Sensor Based On Composite Functional Monomers, You Xiao-Ting, Hu Jing, Zhang Dong-Dong, Tang Lu-Hua, Gao Wen-Hui

Food and Machinery

Objective: This study aimed to rapidly detect the residual quantity of thiamendazole in food. Methods: O-aminophenol and o-phenylenediamine were screened as composite functional monomers by ultraviolet spectroscopy. The polymerization and elution conditions were studied by electrochemical analysis, and the performance of the sensor was evaluated. A rapid method for the determination of thiamendam residues in food was established. Results: Under the control of the optimal conditions, the imprinted sensor had the specific adsorption performance for thiamendam and its structural analogues, and the selectivity for thiamendam was the strongest. The linear relationship of this method ranged from 1.0×10^-8 to 1.0×10 …

French Food Safety Labeling System And Enlightenment, Jiang Ding, Chen Wen-Hua

Food and Machinery

The elements of the French food safety labeling system include specialized management organizations, diversified use objects and diversified identification types. Its text characteristics are reflected in the establishment of a diversified system and standard system, the construction of the cooperation mechanism between the government and market entities, and the attention to the standardized construction of special food safety labeling.In this regard, China's food safety labeling system can be optimized and constructed from the dimensions of improving the diversified food labeling standard system based on Article 71 of the Food Safety Law, building a self-regulatory management standard system with supermarkets and …

Optimization And Experiment Of Vibrating Screening Device For Constricted Razor, Liu Han, Shentu Liu-Fang, Sun Xing-Zhao, Wang Meng, Zhang Peng-Cheng

Food and Machinery

Objective: To improve the separation efficiency of constricted clam shell and meat. Methods: Taking Lianyungang double-headed razor as the test object, taking frequency, amplitude, and sieve surface inclination as the test factors, and taking the screening efficiency and the ratio of the shell in the meat as the main control targets, a single-factor test was carried out, and the test results were analyzed by Design-Expert software. An analysis of variance was performed to establish a regression model matching the frequency, amplitude, and inclination of the screen surface to the screening efficiency and the ratio of husks in the meat. Using …

The Environment Monitoring System Of Cellar Based On Fuzzy Pid Control, Luo Yi, Shi Yan

Food and Machinery

Objective: Solve the problem of inaccurate temperature control of liquor entering the cellar. Methods: Based on the embedded platform, a ZigBee wireless sensor network for cellar parameter aggregation is constructed. The cellar environmental data transmission, storage and display were realized through NB-IOT and cloud platform. Algorithm, real-time optimization of output parameters Kp, Ki, Kd, to achieve precise control of cellar temperature. Finally verify the performance of the temperature control system. Results: The maximum deviation between the measured temperature and the set temperature by the fuzzy PID control algorithm is 0.25 ℃, the overshoot is 1.6%, and the error is within …

Light Weight Detection Of Mango Surface Defects Based On Machine Vision, Nie Yan-Wen, Yang Jia-Chen, Wen Hui-Xin, Gao Lu, Xu Jian

Food and Machinery

Objective: Reduce the manufacturing cost of automated mango grading equipment. Methods: The effects of three commonly detection algorithms for mango defect detection were compared, and a defect detection algorithm based on YOLOv5 for mango surface was proposed for the light weight design to work on mobile devices. Results: Compared with the original algorithm, the experimental algorithm can reduce the number of parameters by 45.9%, the number of floating point operations by 46.7%, and the weight file size by 45.2% under the premise of meeting the requirements for mango surface defect detection. Conclusion: the experimental algorithm effectively reduces the performance requirements …

Research Progress Of Electronic Nose In Fruit And Vegetable Disease Detection, Wu Jia-Wen, Liu Zhi-Hao, Pang Lin-Jiang, Cheng Ji-Yu

Food and Machinery

This paper summarized the latest research progress and achievements of electronic nose technology in fruits and vegetables postharvest diseases, including single pathogen infection and multiple pathogens infection. The shortcomings of current E-nose were analyzed, and the development direction of E-nose in fruit and vegetable disease was predicted.

Rapid Detection And Evaluation Of Benzo[A]Pyrene In Barbecue By Mid-Infrared Spectroscopy Model, Shao Shu-Juan, Li Li, Wen Lei, Song Huan, Yang Sheng-Qiong

Food and Machinery

Objective: In order to realize the rapid detection of benzo[a]pyrene content in barbecue products, a method of detection based on mid-infrared spectrum model was proposed. Methods: The original spectra of 120 barbecue samples were collected by mid-infrared spectroscopy. The original spectra were pretreated by standard normal variable transformation, multivariate scattering correction, first derivative and second derivative. The pretreatment effect of the spectra was evaluated by principal component analysis. The original spectral data were divided into training set and verification set at a ratio of 8∶2 to establish the evaluation model of barbecue products. Results: The R2c, R2p, RMSEC, and RMSEP …

Effcets Of Forward Threaded Element Combination On Melt Transfer Characteristics Of Reverse Threaded Element, Liu Zhong-Yao, Huang Zhi-Gang, Dai Xiang-Ji, Yang Ya-Nan, Zhang Yi-Ming

Food and Machinery

Objective: Explore the effects of different combinations of forward screw elements in the melt conveying section on the melt conveying characteristics of reverse screw elements. Methods: Two different models were constructed by changing the lead, using SolidWorks software to establish a three-dimensional model, and using Polyflow software to numerically simulate the extrusion process of the two models in the melt conveying section. The effects of the screw groove width and screw edge thickness of the screw elements on the flow field under different lead lengths and the changes in the flow field at different rotational speeds were analyzed, and the …

Research Progress Of Quality Evaluation Technology In Black Tea Fermentation Process, Xia Chang-Yi, Ran Qian-Song, Li Rui, Liu Ya-Bing

Food and Machinery

Fermentation is the key to the formation of characteristics and quality of black tea. It is very important to evaluate the fermentability of black tea quickly and accurately. In this paper, the application of artificial sensory evaluation technology, biochemical component detection technology, intelligent biomimetic technology, data fusion technology and intelligent biomimetic equipment in the evaluation of black tea fermentation quality in recent years was reviewed, and the development trend of intelligent biomimetic technology in the evaluation of black tea fermentation in the future was prospected.

Balancing Interests In Forest Governance In Brazil And Indonesia, Annabel Mccormick Baldy

Environment and Sustainability Honors Papers

Forests play a major role in reducing levels of Greenhouse gasses which are a major contributor to global warming. Conversely, deforestation is a major contributor to climate change. This study examines the concept of good forest governance, dispelling notions that resource use needs to be a zero-sum game. Rather, it identifies local collective agreements as espoused by Elinor Ostrom in Governing the Commons as the best means of balancing the undeniable economic potential of converting forests to other uses (grazing, farming, and mining) with the more sustainable approach of protecting forests for their environmental benefit. For Ostrom, these collective agreements …

Divergent Metabolic Changes In Rhizomes Of Lowland And Upland Switchgrass (Panicum Virgatum) From Early Season Through Dormancy Onset, Nathan A. Palmer, Gautam Sarath, Michael J. Bowman, Aaron J. Saathoff, Serge J. Edmé, Robert B. Mitchell, Christian M. Tobias, Soundararajan Madhavan, Erin D. Scully, Scott E. Sattler

Department of Agronomy and Horticulture: Faculty Publications

High-biomass-yielding southerly adapted switchgrasses (Panicum virgatum L.) frequently suffer from unpredictable winter hardiness at more northerly sites arising from damage to rhizomes that prevent effective spring regrowth. Previously, changes occurring over the growing season in rhizomes sampled from a cold-adapted tetraploid upland cultivar, Summer, demonstrated a role for abscisic acid (ABA), starch accumulation, and transcriptional reprogramming as drivers of dormancy onset and potential keys to rhizome health during winter dormancy. Here, rhizome metabolism of a high-yielding southerly adapted tetraploid switchgrass cultivar, Kanlow—which is a significant source of genetics for yield improvement—was studied over a growing season at a northern …

Accurate Irrigation Water Flow Measurement In Pipes, Burdette Barker, Cody Zesiger, Matt Yost

All Current Publications

Flow measurement is an important component of water management. There are many methods that can be used to measure water flow, and different methods and technologies are used for pipe flow as compared to open channel (canal) flow. In this fact sheet, we cover only pipe flow, and for that, only technologies that are most common in conventional irrigation practice. We also address some basic principles of flow measurement along with some pros and cons for different measurement technologies.

Effect Of The Red-Edge Band From Drone Altum Multispectral Camera In Mapping The Canopy Cover Of Winter Wheat, Chickweed, And Hairy Buttercup, Clement E. Akumu, Samuel Dennis

Agricultural and Environmental Sciences Faculty Research

The detection and mapping of winter wheat and the canopy cover of associated weeds, such as chickweed and hairy buttercup, are essential for crop and weed management. With emerging drone technologies, the use of a multispectral camera with the red-edge band, such as Altum, is commonly used for crop and weed mapping. However, little is understood about the contribution of the red-edge band in mapping. The aim of this study was to examine the addition of the red-edge band from a drone with an Altum multispectral camera in improving the detection and mapping of the canopy cover of winter wheat, …

Things To Consider Before Co-Signing A Loan, J. David Aiken

Cornhusker Economics

In the context of family farms, includes some general points to consider before you sign a loan guarantee for a family member who is heavily in debt.

Conclusion: Having to consider whether to co-sign a child's loan is a very difficult situation-no one wants to be part of losing part of the family farm or ranch to loan foreclosure. But if the loan guarantee isn't part of a financial turnaround plan that has at least a fighting chance of success, don't sign the guarantee unless you absolutely don't need the money for your own retirement.

Implementing Bos Indicus-Influenced Cattle In Utah For Hybrid Vigor, Reganne K. Briggs, Matthew D. Garcia

All Current Publications

Crossbreeding is a tool that cattle producers have used for decades. Hybrid vigor is one of the products of crossing breeding. One way to maximize hybrid vigor is by introducing Bos indicus genetics in a herd. Santa Gertrudis cattle are a great option for introducing Bos indicus genetics.

Plant Maze, Admin Stem For Success

STEM for Success Showcase

Students plant bean sprouts to observe their growth.

Tomatosphere, Admin Stem For Success

STEM for Success Showcase

Students learn about plant growth and the scientific process

Mycorrhizal Symbioses And Plant Interactions, Domenico Prisa

Karbala International Journal of Modern Science

The growing interest in mycorrhizal fungi in agriculture is related to their symbiotic relationships with cultivated plants. Thanks to functional genomics approaches, mycorrhizae and symbioses with host plants have emerged for their fea-tures. Besides improving nutritional supply, plant-fungal interactions increase plants' tolerance to abiotic stresses such as drought, salinity and cold, as well as their resistance to diseases. Recent studies have investigated the interactions between plants and mycorrhizae, however the mechanisms often remain unclear. Indeed, plants in the field are affected by various stresses and results often appear contradictory. This review is aimed at presenting the most relevant studies in …

Water Erosion In The South-West Of Western Australia, Department Of Primary Industries And Regional Development, Western Australia

Natural resources factsheets

The averaged annual direct cost of water erosion to dryland farming in Western Australia is estimated to be $10 million, but the costs are much higher in years of severe summer storms.

Water erosion occurs when water flowing over the land surface moves soil particles downslope. Water erosion is a natural process, but is accelerated under agriculture, especially on cropped land. Water erosion causes loss of topsoil, reduced crop yields, damaged infrastructure, weed dispersal, eutrophication (algal blooms) and silting of dams and natural waterways.