To what extent can manual sorting of peanuts eliminate aflatoxin?3 answersManual sorting of peanuts has been shown to significantly reduce aflatoxin levels. Studies have demonstrated an average reduction of 56% in mean total aflatoxin content through manual sorting. Thorough manual sorting of blanched kernels has also been found to be effective in reducing aflatoxin levels to below regulatory limits. Additionally, a laser-based in-line sorting technology has been validated to effectively remove aflatoxin-contaminated peanuts with a rejection rate ranging from 0.7% to 4.7%. Visual sorting has also been found to be effective in decreasing aflatoxin contamination in both manual and automatic shelling methods. Furthermore, the removal of loose shelled kernels, damaged kernels, and other edibles through belt screening and sorting has been shown to reduce aflatoxin levels by an average of 35%. Overall, manual sorting techniques have proven to be an essential step in minimizing aflatoxin content in peanuts.
How can manual sorting operational management be improved?4 answersManual sorting operational management can be improved in several ways. One approach is to design manual sorting equipment that enhances efficiency and reduces sorting difficulty. Wang and Feng propose a manual sorting equipment with a supply moving mechanism and a receiving moving mechanism, allowing workers to easily access and sort items on the supply and receiving sorting platforms. Another method is to provide a manual sorting operating platform with a two-layer structure and an illuminating lamp, which enlarges the area for placing items and improves visibility for operators, leading to more accurate sorting. Additionally, Li presents a manual sorting table device for food detecting and processing that is stable, adjustable in height, and facilitates the sorting operation of food, saving labor and improving work efficiency. By implementing these improvements, manual sorting operational management can be enhanced, resulting in increased efficiency and accuracy.
How do coin sorters work?5 answersCoin sorters work by using various mechanisms to separate and sort different denominations of coins. One common approach is to use a turntable with a coin pushing plate and a baffle plate to disperse and separate the coins, allowing them to fall onto a sliding rail and slide downwards towards different holes corresponding to their diameters. Another approach involves using a coin screening disk with multiple sorting holes of different diameters, where coins are pushed into the screening hole by a fan and sorted into different coin sorting buckets. Additionally, some coin sorters utilize feeding, separating, counting, and packaging mechanisms to automate the entire sorting process, eliminating the need for manual operation. Another coin sorting device utilizes a coin separating mechanism with a sieve plate and a lower-layer sliding board to quickly and efficiently sort coins based on their denominations. Overall, these coin sorting devices aim to reduce time and labor consumption while ensuring accurate sorting of coins with different face values.
What are the seminal contributions of parcel sorting operations?5 answersParcel sorting operations have made several seminal contributions. One contribution is the development of a novel parcel sorting device that uses a centrifugal force action to sort object parcels with different weights and sizes, replacing manual sorting and improving efficiency. Another contribution is the implementation of a parcel sorting system that includes a sensor to obtain a distance image of parcels and a projection instruction device to generate a projection image based on the distance image, allowing for efficient separation of adjacent parcels. Additionally, a parcel sorting system has been designed with nested containers that enable more efficient packing of packages and parcels for transportation. Furthermore, a parcel sorting method has been proposed that utilizes a state table and sensor information to improve the efficiency of parcel sorting work. Lastly, a multimodal solution combining automatic speech recognition (ASR) technology with optical character recognition (OCR) has been developed to improve address recognition in parcels, achieving a substantial improvement in zip code recognition rate.
What are the different waste sorting technologies available?5 answersNoncontacting and nondestructive sensor-based waste sorting systems are widely used in solid waste classification. These systems utilize sensor-based technologies such as spectroscopic-based and vision-based waste classifications. Waste sorting management involves collection and transportation, pretreatment, and resource utilization stages. Source separation is an important aspect of waste sorting, and approaches to source separation vary across countries. Constructing a top-down management system and incentivizing or constraining residents' sorting behavior can promote source separation. CleverTrash is a waste recognition system that educates users to properly recycle their waste. It uses Convolutional Neural Networks (CNNs) for waste recognition and classification. CNNs have difficulties distinguishing between similar shapes, but perform better when classifying "Bottles versus Other (non-Bottle)". An intelligent waste sorting system based on the Internet-of-things technology includes passive RFID tags, weighing modules, handheld intelligent terminal devices, and a sorting backend cloud platform system. This system enables real-time monitoring of waste sorting, operation scheduling of waste trucks, and comprehensive evaluation of waste sorting. A waste sorting assistance system uses material estimation and projection control to increase the accuracy of waste sorting performed by workers.
How does stem cell sorting happen with Hoechst staining?5 answersStem cell sorting with Hoechst staining involves the use of the DNA-binding dye Hoechst 33342 to identify and purify stem cells. Hoechst has multiple binding modes that result in different spectral properties, allowing for the resolution of multiple cell populations by viewing fluorescence at two wavelengths simultaneously. Stem cells can be distinguished based on their ability to efflux the dye through a multi-drug-like transporter. One strategy for stem cell sorting involves a dual-dye efflux protocol using Hoechst 33342 and rhodamine 123, which efficiently resolves the most primitive stem cells. Another approach is to use fluorescence-activated cell sorting (FACS) to sort Hoechst-extruding cells, known as side population (SP) cells, which have been shown to possess high stem cell activity. The spatial organization of stem cells within the bone marrow microenvironment can also be assessed by analyzing the distribution of Hoechst staining along a perfusion gradient, which may reflect the distance from marrow blood vessels and the level of oxygenation.