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portableequipment, etc ; bifenthrin; chemical species; colorimetry; diflubenzuron; flufenoxuron; fluorescence; food chemistry; nanoparticles; Show all 9 Subjects
Abstract:
... The Tyndall Effect assay (TEA) has been applied into colorimetric metal ion detection since 2019. However, the TEA-based sensor for pesticide detection has never been reported till now. Herein, a facile fluorescent organic nanoparticle (FON)-based sensor is firstly developed for fluorine-containing pesticide detection through ratiometric fluorescence assay (FLA) and TEA. For FLA, the intensity of ...
portableequipment, etc ; barns; composts; lighting; optical equipment; roughness; soil; surface roughness; vision; Show all 9 Subjects
Abstract:
... Knowledge of surface roughness with the consequent presence of crust in the soil is important information for the rational management of environmental resources. Soil surface roughness can be determined by contact and noncontact methods. Contact methods have lower values and precision than noncontact methods. Therefore, the objective of this study was to develop low-cost, portable and robust optic ...
portableequipment, etc ; adulterants; adulterated products; cashew nuts; macadamia nuts; models; peanuts; pecans; probability; rapid methods; Show all 10 Subjects
Abstract:
... A green screening method to determine cashew nut adulteration with Brazilian nut, pecan nut, macadamia nut and peanut was proposed. The method was based on the development of a one-class soft independent modelling of class analogy (SIMCA) model for non-adulterated cashew nuts using near-infrared (NIR) spectra obtained with portable equipment. Once the model is established, the assignment of unknow ...
portableequipment, etc ; antibodies; chlorpyrifos; detection limit; dielectric spectroscopy; electrochemistry; food chemistry; food matrix; glyphosate; high fat foods; immunoassays; low fat foods; pesticide residues; Show all 13 Subjects
Abstract:
... On-field detection of pesticide residue in complex-food matrices is a challenge when it comes to analytical detection involving multistep extraction and purification. In this study, we test the feasibility of an electrochemical portable device for detection of spiked pesticides Glyphosate (Glyp) and Chlorpyrifos (Chlp) in low-fat and high-fat food matrix. The immunoassay based two-plex sensing pla ...
portableequipment, etc ; cadmium; carbon; carbon electrodes; coordination polymers; detection limit; electrochemistry; food chemistry; food safety; heavy metals; juices; lead; liver; nanogold; paper; tea; voltammetry; Show all 17 Subjects
Abstract:
... A portable device is conducive to the on-site detection of heavy metal ions at trace level in food and the prevention of related food safety issues. In this work, an electrochemical device stacked up with flat electrodes was developed for the detection of Pb²⁺ and Cd²⁺. The top layer of the device is a carbon paper as working electrode, which is modified with amino functionalized cobalt-based meta ...
portableequipment, etc ; administered dose; carbon; transportation; Show all 4 Subjects
Abstract:
... In this study, the personal exposure to and potential dose of black carbon (BC) of undergraduate students (22–27 years old, nonsmokers) were determined. BC was continuously measured by a portable device (microAeth® AE51) for four consecutive days in Istanbul between April and May 2019. The time-activity diaries filled out by each volunteer were assessed to define the activities and microenvironmen ...
portableequipment, etc ; case studies; environment; particulates; pollution; traffic; Show all 6 Subjects
Abstract:
... Urban intersection has been identified as a major contributor to the total personal exposure and short-term high exposure of particulate matter (PM) in modern cities. The main aim of this study was to get a better understanding of the determinants of traffic-related PM temporal variations and personal exposure to PMs at a viaduct-covered intersection controlled by traffic signals during the winter ...
portableequipment, etc ; biosensors; blood; electrolytes; potassium; saliva; sodium; Show all 7 Subjects
Abstract:
... Monitoring electrolytes is critical for newborns and babies in the intensive care unit. However, the gold standard methods use a blood draw, which is painful and only offers discrete measures. Although salivary-based detection offers promise as an alternative, existing devices are ineffective for real-time, continuous monitoring of electrolytes due to their rigidity, bulky form factors, and lack o ...
portableequipment, etc ; automation; computer software; dogs; semen; spermatozoa; Show all 6 Subjects
Abstract:
... The iSperm® is a portable device for semen analysis. This study aimed to investigate its correlation with a conventional computer-assisted sperm analyzer (ISAS®v1) for the assessment of semen concentration and kinematic parameters in dogs (n = 224). The intra-assay variability of both devices and their ability to estimate semen concentration at a fixed value of 40 × 10⁶/mL were also investigated. ...
portableequipment, etc ; cultural heritage; data collection; lidar; scanners; Show all 5 Subjects
Abstract:
... The launch of the new iPad Pro by Apple in March 2020 generated high interest and expectations for different reasons; nevertheless, one of the new features that developers and users were interested in testing was the LiDAR sensor integrated into this device (and, later on, in the iPhone 12 and 13 Pro series). The implications of using this technology are mainly related to augmented and mixed reali ...
portableequipment, etc ; biodiversity; environmental education; insects; plant identification; trees; Show all 6 Subjects
Abstract:
... This research study focuses on 31 families (n = 105 individuals) and their experience using a place-based e-Trailguide to observe and learn about the local biodiversity during a hike. Open-ended interviews were conducted with each family after their hike with the e-Trailguide to assess shifts in biodiversity awareness. 190 interview responses were thematically coded into 17 different categories. R ...
portableequipment, etc ; data collection; infrastructure; mobile telephones; models; photogrammetry; uncertainty; Show all 7 Subjects
Abstract:
... Recently, imaged-based localization has become a hotspot in indoor localization research due to its high accuracy and no additional infrastructure requirements. However, computational complexity and memory consumption are critical issues for terminal devices in natural large-scale indoor scenes. In this paper, we propose a system that takes advantage of built-in sensors, a microelectromechanical s ...
portableequipment, etc ; bacteriophages; biomimetics; biosensors; brain; chemistry; electronic nose; memory; Show all 8 Subjects
Abstract:
... The electronic nose is a reliable practical sensor device that mimics olfactory organs. Although numerous studies have demonstrated excellence in detecting various target substances with the help of ideal models, biomimetic approaches still suffer in practical realization because of the inability to mimic the signal processing performed by olfactory neural systems. Herein, we propose an electronic ...
portableequipment, etc ; clinical trials; electromyography; exercise; exercise equipment; muscles; pain; Show all 7 Subjects
Abstract:
... Background: Chronic low back pain (CLBP) is one of the most common musculoskeletal disorders. Physical activity (PA) is often recommended as part of the management of CLBP, but to date, no one particular exercise has been shown to be superior. Vibrating exercise equipment (VEE) is widely available and used despite little scientific evidence to support its effectiveness in the prevention and treatm ...
portableequipment, etc ; bioprocessing; libraries; models; near-infrared spectroscopy; powdered foods; Show all 6 Subjects
Abstract:
... Spectroscopy coupled with deep learning is widely studied for powdered food materials authentication, such as quality ranking and powder identification. However, the models need retraining when new categories are expected to be covered. We proposed a portable device for powder identification using metric learning. Six powders were used to train a deep learning feature extractor and establish a ref ...
portableequipment, etc ; acoustics; biomarkers; biosensors; electrochemistry; electrodes; hydrogen peroxide; potassium; sarcosines; Show all 9 Subjects
Abstract:
... Quantifying biomarkers at the early stage of the disease is challenging due to the low abundance of biomarkers in the sample and the lack of sensitive techniques. This article reports the development of a novel microfluidic electrochemical biosensing platform to address this challenge. The electrochemical sensing is achieved by utilizing a micropillar array electrode (μAE) coated with 3D bimetalli ...
portableequipment, etc ; Xylella fastidiosa; case studies; microbial detection; nanopores; pathovars; quarantine; Show all 7 Subjects
Abstract:
... Rapid and sensitive assays for the identification of plant pathogens are necessary for the effective management of crop diseases. The main limitation of current diagnostic testing is the inability to combine broad and sensitive pathogen detection with the identification of key strains, pathovars, and subspecies. Such discrimination is necessary for quarantine pathogens, whose management is strictl ...
portableequipment, etc ; biosensors; electrical conductivity; energy; food safety; nanometals; nanoparticles; oligonucleotides; toxicity; Show all 9 Subjects
Abstract:
... The agricultural and food sectors are currently focused on developing and implementing control technologies but have not been able to detect postharvest fungi and food-borne bacteria in a fast and reliable manner; thus, necessary measures must be taken as soon as possible. To facilitate this process, a device such as a biosensor could be a potential alternative for the timely detection of various ...
portableequipment, etc ; hydrogen sulfide; methane; models; natural gas; odor compounds; regression analysis; Show all 7 Subjects
Abstract:
... A natural gas (NG) odorization system requires continuous monitoring as well as an optimal injection to satisfy the odorization guidelines, minimize over-odorization, and prevent hazardous gas leaks. NG consists of hydrocarbons such as methane, odorants such as tert-butyl mercaptan, and other sulphur-based VOCs such as hydrogen sulphide; therefore, selectivity is paramount for the reliable and acc ...
portableequipment, etc ; biodegradability; detection limit; electrical resistance; polyesters; pyrroles; tensile strength; texture; Show all 8 Subjects
Abstract:
... In this study, polypyrrole nanoparticles were synthesized by chemical methods on polyester elastic substrates. SEM images represent the uniform distribution of polypyrrole nanoparticles. Using polypyrrole modified fiber, the analysis system was designed and used as a portable texture analyzer to measure the mechanical properties of food samples. In the designed system, there was a linear and signi ...