Changes In Quality Indicators Research Articles

Indigenous governance, ethics and data collection in Australian clinical registries.

To examine Indigenous Governance of Data processes in Australian clinical registries. Audit (via desktop review and interviews) of registries in the Australian Register of Clinical Registries from 17 January 2022 to 30 April 2023. The number of clinical registries collecting ethnicity data, reporting Aboriginal and/or Torres Strait Islander representation on registry governance or steering committees, and reporting human research ethics committee approval. A total of 107 clinical registries were reviewed. Of these registries, 65 (61%) collected ethnicity data; when these were grouped by geographical coverage, those most likely to collect ethnicity data were binational (24/40 [60%]), national (19/26 [73%]) or state based (19/26 [73%]). Of the registries that collected ethnicity data, 29 (45%) classified their ethnicity item as Aboriginal and/or Torres Strait Islander. Only eight clinical registries (7%) reported Aboriginal and/or Torres Strait Islander representation on their governance or steering committees. Human research ethics approval was reported in 94 registries (88%), with only 11 (12%) having Aboriginal human research ethics committee approval. Significant variability is evident in clinical registry recording of Indigenous governance of data, meaning that Aboriginal and Torres Strait Islander communities remain invisible in data which is used to inform policy, clinical models of care, health services and initiatives. Radical change is required to facilitate meaningful change in quality indicators for clinical registries nationally.

The use of liquid fatty waste from restaurants as an alternative raw material for the food industry, biomedical and pharmaceutical applications, and the production of biofuel

There is an active search for alternative types of raw materials for the needs of the national economy. Fossil fuel reserves are noticeably depleted, the ecological condition of the environment is deteriorating, and at the same time, the amount of industrial waste that needs to be disposed of is increasing. The number of polymers for production based on natural raw materials and the need for them for the food industry, biomedical and pharmaceutical applications is constantly growing. About 250,000 liters of used vegetable oil and other fats are generated every week in catering establishments of Ukraine. The largest share belongs to spent frying fats. A significant volume of promising raw materials ends up in the sewage system. The resources of the treatment plants are excessively depleted. Also, emissions of spent fatty raw materials cause enormous damage to the environment. A study was conducted on: the dynamics of changes in quality indicators of sunflower oil during prolonged heating; evaluation of the quality indicators of the samples of the studied spent fats; dynamics of changes in cooking fat quality indicators during prolonged heating; the dynamics of changes in the quality indicators of frying fat during prolonged heating; the physico-chemical indicators of the quality of samples of experimental used fats were investigated. The possibility of using spent frying fats for the production of targeted products, which is a promising resource for the synthesis and production of polymer materials and secondary raw materials in the processes of the technical sphere and the production of biofuel, was investigated. The use of spent liquid fats as a raw material for the production of diesel fuel is appropriate, however, among the tested samples, heated sunflower oil is the least suitable. Spent deep-frying and cooking fats showed a fairly high resistance to long-term heating and after contact with a hot surface are characterized by acceptable values of thermo-oxidative stability, namely 46.5 and 44.1 %, respectively.

Justifying the use of structure-forming agents to increase storability of confectionery products with the foamy structure

Confectionery products with the foamy structure such as pastila and zefir (Russian marshmallow-like confectioneries) are in demand among various consumer groups. The expansion of the range and sales markets requires ensuring quality of such products during their transportation, storage, as well as increasing their shelf life. The patterns of change in quality indicators allow establishing additional requirements for them to improve storability of such products. Moisture transfer processes are predominant during storage of confectionery products with the foamy structure and define their hardening or moistening. Therefore, it is necessary to evaluate the influence of various factors on quality indicators during storage of zefir. Studies have been carried out to determine the influence of various structure-forming agents, such as agar, pectin, gelatin, on the direction and rate of moisture transfer processes during storage of zefir samples. The possibility of using the method of infrared spectroscopy for assessing quality of structure-forming agents during incoming inspection is shown. The mass fraction of moisture in zefir made using agar decreased by 3.5% after 10 weeks of storage at a temperature of 18°C. During this period, the mass fraction of moisture in zefir made using pectin as a structure-forming agent decreased by 2.5%, while in zefir prepared on the basis of gelatin, the mass fraction of moisture decreased only by 1.2%. Thus, the addition of gelatin makes it possible to reduce the rate of moisture transfer by approximately 2–3 times. The low moisture transfer rate of zefir is due to the water-holding properties of the protein structure of gelatin. Diffusion coefficients were calculated to predict the rate of moisture transfer processes in zefir samples made using various structure-forming agents and stored at different temperatures. The lowest diffusion coefficient was determined in zefir made with the addition of pectin, while the highest diffusion coefficient was in the sample based on gelatin. However, zefir made from gelatin had the lowest actual moisture transfer rate, since the gradient of the water activity was minimal (7.6%). With an increase in the storage temperature of zefir made with the addition of various structure-forming agents from 18°C to 28°C, the rate of moisture transfer increased. In zefir produced on the basis of agar, this indicator increased by 2.7 times, in the sample from pectin by 3.0 times; in zefir based on gelatin by only 1.5 times. The results obtained make it possible to predict the risks of changes in zefir quality during storage.

CONTROL AND SUPPORT OF THE QUALITY OF SERVICE IN THE VoIP NETWORK

An approach to the quality of service control and support is proposed, which consists in adding one more indicator to the monitoring of the most used quality indicators – the Network Effectiveness Ratio. The Network Effectiveness Ratio is developed to exclude user behavior and better represent the net performance of the network. Monitoring of this indicator increases the reliability of determining the time interval in which the critical moment of the dynamics of service quality changes is approaching. Missing a critical moment of performance degradation means losing the level of service quality that customers pay for. Therefore, the deterioration of service quality indicators, which indicates the possibility of a critical moment, requires the implementation of certain administrative actions. One of the options for such actions is to run the algorithm for choosing the best route, which controls call routing. The algorithm requires a certain amount of calculations in real time, which creates an additional computational load. The proposed approach due to the control of an additional indicator increases the level of confidence that the dynamics of changes in quality indicators require additional calculations to change routing, which in turn allows support the quality of service at the appropriate level.

Temporal Changes in Quality Indicators in a Regional System of Care After Surgical and Transcatheter Aortic Valve Replacement

BackgroundHistorically, quality-of-care monitoring was performed separately for transcatheter and surgical aortic valve replacement (TAVR, SAVR). Using consensus indicators, we provide a global report on the quality of care for treatment of aortic stenosis across the highest-volume treatments: transfemoral (TF) TAVR, isolated SAVR, and SAVR combined with coronary artery bypass graft. MethodsRetrospective observational cohort study of consecutive patients in a regional system of care. Primary endpoint was 30-day and 1-year mortality (2015-2019). Secondary endpoints included rate of new pacemaker, rate of readmission, and length of stay (2012-2019). Following multivariable logistic regressions, we developed mortality case-mix adjustment models to report risk estimates. ResultsThe proportion of patients receiving TAVR grew from 32% to 53% (2015-2019). Those receiving TF TAVR were significantly older, with higher rates of comorbidities. Observed 30-day and 1-year all-cause mortality after TF TAVR decreased from 3.1% to 0.6% (P = 0.03), and 13.6% to 6.6% (P = 0.09), respectively; surgical mortality rates for isolated SAVR and SAVR combined with coronary artery bypass graft were low and did not change significantly over time, ranging from 0.3% to 1.4% and from 0.9% to 3.4%, respectively at 30 days, and from 0.9% to 3.4% and from 4.7% to 6.7 at 1 year. In the TF TAVR cohort, the observed vs expected ratio for 30-day and 1-year mortality decreased significantly from 1.9 (95% confidence interval [CI] 0.9, 3.5) to 0.3 (95% CI 0.1, 0.8), and from 1.3 (95% CI 0.9, 1.7) to 0.7 (95% CI 0.5, 0.99), respectively; no change occurred in risk-adjusted surgical mortality. ConclusionsConsensus quality indicators provide unique insights on the quality of care for patients receiving treatment for aortic stenosis.

A combination of acidic electrolyzed water with modified atmosphere packaging improves quality of jujube during cold storage by enhancing antioxidant activity.

This study aimed to investigate the effects of a combination of acidic electrolyzed water (AEW) and modified atmosphere packaging (MAP) on the quality of jujube stored at 1±0.5°C for 40 days. Jujube was treated with AEW+MAP, AEW, and MAP, respectively, to identify an appropriate preservation method based on the changes of quality indicators, activities of antioxidant enzymes and nonenzymatic antioxidant systems, malondialdehyde (MDA) content, and cell membrane permeability. Results showed that the combined treatment maintained higher storage quality of jujube than the other threetreatments. The combined treatment significantly suppressed softening, weight, and color loss and maintained total soluble solid and titratable acidity. Moreover, the combined treatment improved antioxidant capacity showing high levels of nonenzymatic antioxidant systems (ascorbic acid and 1,1-diphenyl-2-picrylhydrazyl radical scavenging capacity), and the activities of antioxidant enzymes (ascorbate peroxidase, superoxide dismutase, and catalase). These effects remarkably suppressed the increase of MDA level and cell membrane permeability, thereby inhibiting oxidative damage and alleviating quality deterioration. Furthermore, kinetic model indicated that AEW+MAP decreased rate constant of quality deterioration. Principal component analysis also showed that AEW+MAP treatment alleviated quality deterioration, with higher comprehensive score than other treatments. In summary, AEW+MAP was an effective preservation method to maintain storage quality and delay postharvest senescence of jujube. PRACTICAL APPLICATION: In this study, a combination of acidic electrolyzed water (AEW) with modified atmosphere packaging (MAP) has been found to have effective preservation effects on jujube. AEW+MAP treatment improved quality of jujube during cold storage mainly by enhancing antioxidant capacity. The combined treatment may provide a new preservation technology for jujube.

Analysis of ionic equilibria by water treatment stage and calculation of monitored parameters

The mathematical model of the unit of the water treatment scheme is based on the mathematical model of improvements in the consistency metrics by step of treatment and is the basis for the technical measurement of this element. The suggested step-by-stage estimation of the water quality indicators for the assembled water treatment unit system helps the final quality of the treated water to be calculated and the mathematical model of the quality indicators adjustment by treatment phase was developed in relation to the water used in the TPP water treatment. For circuit elements, the change in the input and output quality indicators occurs depending on the type of processing, which is conveniently represented by equivalent circuits. For circuit elements, input and output quality variation occurs depending on the type of processing, which is conveniently represented by equivalent circuits. Thus, an equivalent scheme for the change in quality indicators by treatment stage can be represented by the example of a one-stage chemical desalination scheme for natural water. It should be noted that the calculated concentration fractions of carbon dioxide dissociation forms and known carbonate hardness, for example, can be used to determine the concentrations themselves.

Medicinal effect of carrot and storage technologies in modern refrigerated warehouses

This article shows the importance of the local carrot root fruit in the national economy, which is loved by the population today. Its branches of use for the food industry, i.e. cases of maximum preservation of its medicinal properties and chemical composition compared to other types of vegetables, in the production of various products in a fresh yellow appearance, storage and processing for certain periods, have been studied. In addition, the superiority levels of carrots over other products, as well as the main chemical composition of carrot tubers in any form of use, the amount of dissolved dry matter in the tubers and the level of acidity in the juice were studied. The dependence of the storage period of carrots in the freshly cut state and the long-term storage period, in addition, the main technological parameters in the process of long-term storage of carrot tubers in modern refrigerated warehouses are presented. Information on the total amount of natural weight loss during initial cooling and long-term storage with changes in quality indicators depending on the temperature and relative humidity of the air in the cooling chamber is presented.

High nitrogen addition after the application of sewage sludge compost decreased the bioavailability of heavy metals in soil

Nitrogen (N) fertilizer is highly significant in agricultural production, but long-term N addition causes changes in quality indicators, such as soil organic matter (SOM), thus affecting the absorption and accumulation of organic pollutants. Therefore, paying more attention to organic fertilizers in the development of green agriculture is necessary. However, the accumulation of heavy metals (HMs) contained in organic fertilizers (especially sewage sludge compost (SSC)) in the soil can cause environmental contamination, but how this cumulative reaction changes with the long-term N addition remains unclear. Here the SSC impact on the bioavailability of five typical HMs (cadmium–Cd, chromium–Cr, copper–Cu, lead–Pb and arsenic–As) in the soil-plant system before and after SSC application was demonstrated through a field study in soils with different application rates of 0, 100 and 300 kg N ha−1yr−1, respectively. Our results showed that SSC application increased the concentration of most HMs in soil profiles and plant systems (wheat roots and grains), but the accumulation rate of HMs and most bioaccumulation values (BAC–bioaccumulation coefficient and BCF–bioconcentration factor) in plant systems were both lower in high-N addition soil than that in the low-N group. Moreover, speciation distribution results further indicated that SSC application increased the LB (liable available form, including F1–water soluble, F2–ion exchangeable, and F3–bound to carbonates) form of HMs and decreased the PB (potentially available form, including F4–humic acids and F6–fraction bound to organic matter) form of HMs in high-N addition soil, respectively. Those results suggested that HM bioavailability in high-N addition soil was lower than that in low-N addition soil when applied with SSC. Overall, this study found that increasing soil N content can inhibit the bioavailability of HMs when applying SSC, providing suggestions for optimizing the trialability and risk assessment of SSC application.

Defining quality indicators for sugar pasteswith demineralized whey during storage

This paper considers the changes in quality indicators of sugar pastes with dry demineralized whey and glycerin during storage in order to establish their technological shelf life. Based on the results of studying changes in the mass fraction of moisture of sugar pastes over 30 days, a decrease in this indicator in the control sample was established, by 80 %, and in the experimental one – by 30 %. Examining the sensory characteristics of consistency according to the devised descriptors has made it possible to establish that the control sample of sugar pastes onday 10 of storage is technologically unsuitable. Its consistency is characterized as too dense, hard, brittle, not uniform, with lumps. Accordingly, the molding ability, which received 3.45 points, decreases. The prototype, even on day 30 of storage, has acceptable consistency characteristics: moderately hard and dense, softish, homogeneous with the presence of barely perceptible small inclusions. A high molding ability is retained, which received 4.3 points. Experimental studies of the fractional composition of the solid phase and the dispersion of sugar pastes are consistent with studies into the sensory characteristics of the consistency. It was established that on day 10 of storage, in the control sample the fractional composition of particles with a size of 21 to 30 µm prevails, the content of which is 62 %, which characterizes the structure as coarse crystalline. In the prototype on day 30 of storage, thecontent of particles the size of 11 to 20 µmwas 72 %, which preserves the quality of the paste and characterizes its structure as finely crystalline. The results of the study made it possible to establish a tendency to slow down the build-up of solid particles of the developed sugar pastes, and their growth to a critical size of 22.6 µm.The data obtained have made it possible to establish the technological shelf life of the developed sugar pastes, which was 30 days, which is 3 times more than that of the control. Consequently, the introduction into the formulation composition of sugar pastes of demineralized whey at a concentration of 50 % and glycerin at a concentration of 5 % makes it possible to extend their technological shelf life. This is important from a practical point of view and solves the problem set.

Research of changes in quality indicators of fish pate with non-traditional raw materials

Taking into account the results of literature research on the nutritional value of quail eggs, it was found that the development of technology of fish pates with their use is relevant and has practical significance in the technology of production of fish products. The article presents the results of chemical composition, organoleptic evaluation and physico-chemical changes of fish pate with the addition of non-traditional raw materials and setting their shelf life. The expediency of combining freshwater fish with plant and animal raw materials to expand the range of biologically valuable food products is shown. Positive general impressions, harmonious, fishy and sweet-salty taste, showed the feasibility of combining quail eggs and vegetable raw materials with freshwater fish, as evidenced by high performance in appearance, taste and smell. According to the consistency of fish pate smeared and quite dense. It was found that in the experimental sample during storage are hydrolytic spoilage, which indicates the intensive hydrolysis of lipids and the accumulation of free fatty acids in these samples. In the prototypes, the hydrolytic damage gradually increases and only reaches the critical point by the end of the shelf life. Oxidative processes in the lipids of fish pastes were studied by changes in the accumulation of primary oxidation products – peroxides and secondary products – carbonyl compounds. According to the dynamics of changes in the peroxide content of lipids in pate, it was found that the control sample is not subject to storage for 5 days as well as the test sample, the fat content deteriorates and is characterized as non-storage. It has been experimentally established that the addition of non-traditional raw materials allows not only to improve the technology of pate production, but also to solve the problem of obtaining a product of high nutritional value. The authors found that the developed technology of fish pate will significantly expand the range of functional products based on natural ingredients, which will to some extent expand the current problem of processing raw materials in inland waters of Ukraine.

Effect of Biodegradable Packaging on the Shelf-Life of Pasteurised Whole Egg Mass

Abstract The aim of this study was to determine the effect of two types of packaging on the change in quality indicators of pasteurised liquid egg mass. Traditionally, the shelf-life of pasteurised liquid egg mass is up to 28 days. The increase in shelf-life would increase the exportation options of this product. The liquid egg mass was pasteurised on the equipment Ovobel AR56SH; the pasteurisation process continued for 60 minutes, reaching a maximum temperature from 65 °C to 68 °C (hold time: 360 seconds). This paper focuses on two main packaging materials: high-density polyethylene (HDPE) and Tetra Rex® Bio-based. Forty-two samples of each packaging material were used to study the contents. Changes in the quality of samples during storage were estimated by measuring the total bacterial count (CFU/g) from 200 at the start of shelf-life up to 30×105 units (LVS ISO 4833-1:2014). Data in the test was explored with Anova: Single Factor statistical model and correlation method. Data that was obtained emphasises the importance of packaging type, which could provide stable quality of ready-to-use products for a duration of up to forty-five days.

Postharvest application of acibenzolar- S-methyl delays the senescence of pears by mediating the ascorbate-glutathione cycle

This study was conducted to explore the changes of quality indicators and ascorbate-glutathione (AsA-GSH) cycle in 'Docteur Jules Guyot' pears after acibenzolar-S-methyl (ASM) dipping. Results demonstrated that ASM delayed the yellowing and flesh firmness decline, decreased the ethylene release and titratable acidity, and increased soluble solid content in pears. Additionally, ASM enhanced the hydrogen peroxide, ascorbic acid, and reduced glutathione contents, improved the activities of ascorbate peroxidase, glutathione reductase, monodehydroascorbate reductase, and dehydroascorbate reductase in the exocarp and mesocarp of pears. However, enzymes activities and hydrogen peroxide content in the exocarp were higher than that in the mesocarp after dipping with ASM. These results suggest that postharvest application of ASM could modulate the AsA-GSH cycle to delay senescence of pears, and the exocarp responded more rapidly than the mesocarp.

In defense of Direct Care: Limiting access to military hospitals could worsen quality and safety.

Ongoing health care reforms within the US Military Health System (MHS) are expected to shift >1.9 million MHS beneficiaries from military treatment facilities (MTFs) into local civilian hospitals over the next 1-2 years. The objective of this study was to examine how such health care reforms are likely to affect the quality of MHS care. Adult MHS beneficiaries, aged 18-64 years, treated in MTFs (under a program known as Direct Care) were compared against (1) MHS beneficiaries treated in locally available civilian hospitals (under a program known as Purchased Care) and (2) similarly-aged adult civilian patients across the United States. MHS beneficiaries in Direct and Purchased Care were identified from fiscal-year 2016-2018 MHS inpatient claims. National inpatients were identified in the 2017 Nationwide Readmissions Database. Retrospective cohort. Differences in quality were compared using two sets of quality metrics endorsed by the US Agency for Healthcare Research and Quality (AHRQ): Inpatient Quality Indicators, 19 quality metrics that look at differences in in-hospital mortality, and Patient Safety Indicators, 18 quality metrics that look at differences in in-hospital morbidity and adverse events. Among MHS beneficiaries (Direct and Purchased Care), we further simulated what changes in quality indicators might look like under various proposed scenarios of reduced access to Direct Care. A total of 502,252 MHS admissions from 37 MTFs and surrounding civilian hospitals were included (326,076 Direct Care, 179,176 Purchased Care). Nationwide, 9.34million adult admissions from 2453 hospitals were included. On average, MHS beneficiaries treated in MTFs experienced better inpatient quality and improved patient safety compared with MHS beneficiaries treated in locally available civilian hospitals (e.g., summary observed-to-expected ratio for medical mortality: 0.98 vs. 1.03, p < 0.001) and adult patients across the United States (0.98 vs. 1.02, p < 0.001). Simulations of proposed changes resulted in consistently worse outcomes for MHS patients, whether reducing MTF access by 10%, 20%, or 50% nationwide; limiting MTF access to active-duty beneficiaries; or closing MTFs with the worst performance on patient safety (p < 0.001 for overall quality indicators for each). Reducing access to MTFs could result in significant harm to MHS patients. The results underscore the importance of health-policy planning based on evidence-based evaluation and the need to consider the consequential downstream effects caused by changes in access to care.

Multivariate system for evaluating the glue-welded joints quality

The change in quality indicators when replacing traditional welded joints with glue-welded ones is considered. The classification of factors influencing the machines glue-welded joints destruction processes is given. The possible destruction causes are shown on the base of the glue-welded joints destruction nature analysis. The cause-and-effect relations that have the greatest impact on the quality when replacing traditional machines welded joints with glue-welded ones are established.

Effects of Penicillium expansum infection on the quality and flavor of yellow flesh kiwifruit during cold storage.

This study aimed to assess the effects of Penicillium expansum (P. expansum) infection on the quality and flavor of Jinmi (JM) and Jinyan (JY) kiwifruit. Kiwifruit were inoculated with P. expansum and stored at 0±1°C, and the changes in quality indicators and volatile substances (VCs) at different stages of disease were determined. Results showed that in wound-inoculated kiwifruit, the soluble solid content (SSC) increased. Conversely, their titratable acidity and vitamin C (VC) content, firmness, lightness, and saturation decreased. The taste-related parameters and nutritional value of kiwifruit declined after infection. VCs such as ethanol, 3-methyl-1-butanol, and 2-methylisoborneol were detected only in the diseased fruit and gradually increased as the disease aggravated, suggesting that they may be the main sources of odor during P. expansum infection. Therefore, VCs detection can be used to determine possible P. expansum infection, as well as the degree of infection in kiwifruit. PRACTICAL APPLICATIONS: In practical application, we can use the results of this study to determine possible Penicillium expansum infection, as well as the degree of infection in kiwifruit according to the indicators such as volatile substances. Kiwifruit enterprises can use the nondestructive detection model established in this study to screen out the kiwifruit infected with P. expansum more efficiently, quickly, and accurately, in order to prevent harm to the health of consumers.

Influence of biochemical properties of raw materials on the change of quality of salted fish products

According to the state of development of the fishery industry of Ukraine and increasing requirements for the quality of food products, it is relevant to address issues of preventing losses of fish products from spoilage of microbial origin, protecting them from oxidation, ensuring proper quality, safety and competitiveness of finished products sold on the Ukrainian market. The purpose of the work is to study the influence of the biochemical properties of raw materials on the change in the quality of salted fish products. The research explores the influence of the biochemical properties of raw materials on the change of quality of salted fish products packed in a modified environment. The main reasons for the deterioration of the quality of salted fish products are described. Possible areas for increasing the stability of salted fish products during storage are presented. The level of activity of tissue proteolytic enzymes is one of the main factors that characterise the maturation rate of salted fish, and the mass fraction of fat can determine the degree of influence of carbon dioxide on muscle tissue during storage. Accordingly, the results of the study of the initial fish raw materials, namely the mass fraction of fat and enzymatic activity of muscle tissue are presented. It was established that fish raw materials had significant differences in both the mass fraction of fat and enzyme activity. The results of studies of the physical and chemical parameters of salted fish products packed in a modified environment are presented. Initial composition of the gas mixture: 40% CO₂ and 60% N₂. High-barrier bags were used for packaging. The results of the experimental studies demonstrated that in terms of changes in quality indicators, the packaging of salted fish in a modified environment is most effective for products from non-fat raw materials with low total acidity and proteolytic enzyme activity. The practical value of the scientific work is to develop promising areas for improving the sustainability of salted fish products by using modified environments. Despite a significant amount of scientific research in the field of packaging, systematic studies of such products have not been conducted, thus, the practical application of modified environments raises the greatest number of questions for manufacturers regarding the reliable sustainability of products

Changing the pulse duration of a PWM as a means of improving the quality of the ACS regulation using ANN

This paper investigates the influence of the pulse width modulator on the quality of the automatic control system. The approach to the study of ACS using real technical means of automation has been described. A comprehensive study using different structures of neuron connections of the neuroregulator is carried out. The dynamics of changes of quality indicators of the ACS regulation when the object parameters change towards increasing and decreasing inertia is considered together with it. The research results for each of the configurations are plotted. The values of the control quality parameters are tabulated for further comparison of the configurations’ efficiency.

Asymmetric power consumption in rural electric networks

Study of changes in quality indicators and an increase in additional losses of electrical energy in rural distribution networks of 0.38 kV in the village (Vishnyakovo, Irkutsk region). The measurements were carried out by a certified device “Resource-UF2M”, which records changes in the quality indicators of energy efficiency, but does not record additional losses of electrical energy associated with this changed quality. Therefore, based on the obtained measurement data, we used the developed computer program “Asymmetry” to calculate the required power quality indicators, as well as additional electrical energy losses caused by a change in these indicators. Based on the results of measurements and calculations, time diagrams were built, and an analysis was made of quality indicators and additional losses of electric energy in the existing 0.38 kV networks.

Investigation of Changes in Quality Indicators of Agro-Industry Products During

Quality control is an integral part of production process and sales and one of the main means conformity of the products in line with established requirements.Meat products belong to the category of the most valuable food products. Freezing is a low-temperature preservation method. It provides the development of microbiological processes and a sharp reduction in the rate of enzymatic and physical-chemical reactions sacrificing the quality of the product.There are some methods for evaluating the quality of meat products. One of the promising methods of complex research in this area is the impedance method. An important property of biological tissues is the dependence of their conductivity and relative permittivity on the current frequency. There is a dependence of frequency on electrical resistance dependency in the same way.Its electrical characteristics also undergo changes, given that the cellular structure of meat changes during freezing. These changes are caused by the cell membranes destruction. As a result, the conditions for the passage of electrons and ions inside the meat change.Impedancometry offers a wide range of possibilities for determining the meat freshness, the storage conditions correctness, compliance with technological modes of processing meat raw materials, in particular, the number of freezes that meat raw materials have undergone.The bioimpedance meter will allow you to set the standard indicators typical for each type of meat, exceeding which would serve as evidence of the unsuitability of meat as a food.