APPLICATION OF THE HARRINGTON DESIRE FUNCTION IN DESIGNING COMPLEX MULTI-COMPONENT FOOD

Author(s):  
Olga Valentinovna Rudenko ◽  
◽  
Andrey Aleksandrovich Kramarenko ◽  

The article discusses the issue of design automation and optimization of complex multicomponent food products using mathematical programming methods. Food design methods based on generalized modeling criteria with one vector of mixture quality indicators lead to the formulation of a quadratic programming problem. Determination of the universal quality indicator can be carried out using the asymmetric Harrington desirability functions. The application of the criterion with the specified lower and upper permissible levels of consumption for each of the quality indicators allows one to take into account deviations in the direction of insufficiency or overdose of nutrients. One of the possible expressions for desirability functions of this kind is the use of the product of Gompertz curves to express particular criteria of balance. The use of this methodology on the example of the development of a marshmallow formulation with the addition of apple and sea buckthorn to achieve an optimal balance of nutrients has significantly improved the percentage of balance of the mixture.

2020 ◽  
pp. 78-88
Author(s):  
G. Mirskikh ◽  
◽  
V. Vasyuk ◽  
T. Knizhka ◽  
◽  
...  

When designing power facilities, the problem usually arises of comparing their possible options for performance, taking into account consumer quality. A common and easy-to-implement method is the formation of a generalized indicator, however, subjectivity is inherent in it, given this, the task of developing algorithms and methods that objectively consider the quality indicators of an energy object becomes especially urgent. It is argued that, in accordance with the condition for making a decision on the type of the synthesizing function, the main object of uncertainty, respectively, of the quality indicator, which is inherently subjective, is the vector of the significance coefficients of the weight coefficients. The presented algorithms in conditions of uncertainty that allow you to build a generalized quality criterion for energy facilities. For a comprehensive assessment of the quality of energy facilities, it is proposed to use the methods of arbitrary summary indicators, namely: the method of arbitrary summary indicators, the method of priority of private quality indicators and the method of minimizing the deviation of the summary quality indicator. It is proposed to reduce the influence of subjective factors in determining the weight coefficients, it is advisable to use a combination of these methods. For the method of minimizing the deviation of the aggregate indicator, using the principle of objectivity, an algorithm for determining the weight coefficients has been developed, taking into account that in the area of permissible changes in parameters, the value of the criterion will be minimal. Accordingly, to solve the problem of comparing the options for constructing energy facilities, which includes the determination of weight coefficients for the formation of a composite indicator, it is necessary to use the results of expert assessment that are supplemented by calculation methods that will reduce the subjective factor that is inherent in the method of expert assessment.


Transport ◽  
2021 ◽  
Vol 0 (0) ◽  
pp. 1-12
Author(s):  
Wencheng Huang ◽  
Yue Zhang ◽  
Yifei Xu ◽  
Rui Zhang ◽  
Minhao Xu Xu ◽  
...  

In order to evaluate the URTPSQ (Urban Rail Transit Passenger Service Quality) comprehensively, find the shortage of URTPSQ, find out the difference between the actual service situation and the passenger’s expectation and demand,and provide passengers with better travel services, a passenger-oriented KANO–Entropy–TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution) method is proposed and applied in this paper. Firstly, a KANO model is applied to select the service quality indicators from the 24 URTPSQ evaluation sub-indicators, according to the selection results, the KANO service quality indicators of URTPSQ are constructed. Then the sensitivity of the KANO service quality indicators based on the KANO model are calculated and ranked, the PS (Passenger Satisfaction) of each KANO service quality indicator by using the Entropy–TOPSIS method is calculated and ranked. Based on the difference between the sensitivity degree rank and the satisfaction degree rank of each KANO service quality indicator, determine the service quality KANO indicators of the URTPSQ that need to be improved significantly. A case study is conducted by taking the Chengdu subway system in China as a background. The results show that the Chengdu subway operation enterprises should pay attention to the must-be demand first, then the one-dimensional demand, finally the attractive demand. The three indicators, including transfer on the same floor in the station, service quality of staffs of urban rail transit enterprises,and cleanness in the station and passenger coach, need to be improved urgently. For the managers and operators of urban rail transit system, the passengers’ must-be demand should be satisfied first if the KANO model is applied to evaluate the service. The indicators with highest sensitivity degree and lowest TOPSIS value should be improved based on the KANO–Entropy–TOPSIS model.


2015 ◽  
Vol 3 (11) ◽  
pp. 1-128
Author(s):  
Antonia C Hardcastle ◽  
Luke TA Mounce ◽  
Suzanne H Richards ◽  
Max O Bachmann ◽  
Allan Clark ◽  
...  

BackgroundShortfalls in the receipt of recommended health care have been previously reported in England, leading to preventable poor health.ObjectivesTo assess changes over 6 years in the receipt of effective health-care interventions for people aged 50 years or over in England with cardiovascular disease, depression, diabetes or osteoarthritis; to identify how quality varied with participant characteristics; and to compare the distribution of illness burden in the population with the distributions of diagnosis and treatment.Setting and participantsInformation on health-care quality indicators and participant characteristics was collected using face-to-face structured interviews and nurse visits in participants’ homes by the English Longitudinal Study of Ageing in 2004–5, 2006–7, 2008–9 and 2010–11. A total of 16,773 participants aged 50 years or older were interviewed at least once and 5114 were interviewed in all four waves; 5404 reported diagnosis of one or more of four conditions in 2010–11.Main outcome measuresPercentage of indicated health care received by eligible participants for 19 quality indicators: seven for cardiovascular disease, three for depression, five for diabetes and four for osteoarthritis, and condition-level quality indicator achievement, including achievement of a bundle of three diabetes indicators.AnalysisChanges in quality indicator achievement over time and variations in quality with participant characteristics were tested with Pearson’s chi-squared test and logistic regression models. The size of inequality between the hypothetically wealthiest and poorest participants, for illness burden, diagnosis and treatment, was estimated using slope indices of wealth inequality.ResultsAchievement of indicators for cardiovascular disease was 82.7% [95% confidence interval (CI) 79.9% to 85.5%] in 2004–5 and 84.2% (95% CI 82.1% to 86.2%) in 2010–11, for depression 63.3% (95% CI 57.6% to 69.0%) and 59.8% (95% CI 52.4% to 64.3%), for diabetes 76.0% (95% CI 74.1% to 77.8%) and 76.5% (95% CI 74.8% to 78.1%), and for osteoarthritis 31.2% (95% CI 28.5% to 33.8%) and 35.6% (95% CI 34.2% to 37.1%). Achievement of the diabetes care bundle was 67.8% (95% CI 64.5% to 70.9%) in 2010–11. Variations in quality by participant characteristics were generally small. Diabetes indicator achievement was worse in participants with cognitive impairment [odds ratio (OR) 0.5, 95% CI 0.4 to 0.7] and better in those living alone (OR 1.7, 95% CI 1.3 to 2.0). Hypertension care was better for those aged over 74 years (vs. 50–64 years) (OR 3.2, 95% CI 2.0 to 5.3). Osteoarthritis care was better for those with severe (vs. mild) pain (OR 1.8, 95% CI 1.4 to 2.2), limiting illness (OR 1.8, 95% CI 1.5 to 2.1), and obesity (OR 1.6, 95% CI 1.2 to 2.0). Previous non-achievement of the diabetes care bundle was the biggest predictor of non-achievement 2 years later (OR 3.3, 95% CI 2.2 to 4.7). Poorer participants were always more likely than wealthier participants to have illness burden (statistically significant OR 3.9 to 16.0), but not always more likely to be diagnosed or receive treatment (0.2 to 5.3).ConclusionsShortfalls in quality of care for these four conditions have persisted over 6 years, with only half of the level of indicated health care achieved for osteoarthritis, compared with the other three conditions. Quality for osteoarthritis improved slightly over time but remains poor. The relatively high prevalence of specific illness burden in poorer participants was not matched by an equally high prevalence of diagnosis or treatment, suggesting that barriers to equity may exist at the stage at diagnosis. Further research is needed into the association between quality and health system characteristics at the level of clinicians, general practices or hospitals, and regions. Linkage to routinely collected data could provide information on health service characteristics at the individual patient level.FundingThe National Institute for Health Research Health Services and Delivery Research programme.


2021 ◽  
pp. 30-34
Author(s):  
V.F. Bezjazychnyi ◽  
M.A. Prokofiev ◽  
F.R. Zhirnova

The method of calculating the strength of the joint with tension taking into account the technological conditions for processing the mating surfaces, which determine the quality indicators of the surface layer of the material of these surfaces: the surface roughness and the degree of their hardening, was described.


Author(s):  
Małgorzata Sztubecka ◽  
Maria Mrówczyńska ◽  
Anna Bazan-Krzywoszańska ◽  
Marta Skiba

Noise can have many harmful effects on the recipients, however people exposed to noise on a long-term and regular basis can get used to it, even if the permissible levels are exceeded. In cities, green areas and park systems are provided to create a climate for rest and relaxation. Spa parks are a special kind of such park systems, which – in addition to the above-mentioned features – support therapies offered by spa facilities located there. On the one hand, patients and visitors appreciate various social and entertainment events held there, but – on the other – a multitude of sounds associated with them may reduce the comfort of their stay. The aim of this paper is to analyse the relationship between the results of noise measurements and the human perception of noise within the impact zone. The examined area is a spa park in the health resort district of Inowrocław, where seasonal measurements (taken in summer and winter) provided a basis for the determination of the connection between the measured values of equivalent sound level and the noise level perceived by surveyed people. A statistical analysis was performed to take into account the correlation between the obtained measurement results and the human perception of noise. It shows some differences in the perception of heard sounds. The results allow an evaluation of the soundscape of the analysed area.


2016 ◽  
Vol 51 (4) ◽  
pp. 345-353 ◽  
Author(s):  
Stuart T. Haines ◽  
Seena L. Haines ◽  
Eric J. MacLaughlin ◽  
Jenny A. Van Amburgh

Objective: To develop definitions of who pharmacy practice faculty and partners are, identify indicators to measure practice-related activities, and provide guidance for evaluating pharmacy practice faculty. Methods: A 4-round, online Delphi was conducted. Panelists with experience evaluating pharmacy practice faculty were invited. Consensus was achieved when there was agreement by at least 70% of panelists. Round 1: Panelists were asked to identify the essential distinguishing characteristics of pharmacy practice faculty and practice partners as well as metrics that could be used to measure practice productivity and quality. Responses were grouped into common themes. Round 2: Panelists were asked to agree, agree with changes, or disagree with themes and metrics identified. Round 3: Panelists were asked to agree, agree with changes, or disagree with definitions of pharmacy practice faculty and practice partners. Panelists were asked about procedural elements of evaluation processes that colleges/schools should adopt. Round 4: panelists were asked about areas of uncertainty that had not yet achieved consensus. Results: A total of 17 experts participated. Consensus definitions for pharmacy practice faculty and practice partners were achieved . From 291 submitted indicators, 14 productivity and 10 quality indicators reached consensus along with recommended frequencies for collection and review. Peer review was identified as an important quality indicator. Recommendations regarding who should participate in the evaluation process and how the data should be used also achieved consensus. Conclusion: Formal mechanisms for evaluating the practice-related activities of pharmacy faculty are critical to ensure this area of responsibility is fairly recognized and considered.


Soil Research ◽  
1982 ◽  
Vol 20 (1) ◽  
pp. 61
Author(s):  
HS Acharya

In experimental methods for determination of soil water diffusivity using the water distribution from horizontal infiltration into a soil column, hand smoothing of the experimentally obtained distribution introduces uncertainties in the calculations. A method of calculation involving techniques of quadratic programming has been used to minimize the possible errors caused by inhomogeneous packing of the horizontal soil columns. Examples are given to illustrate the method of calculations.


2020 ◽  
Vol 152 ◽  
pp. 1035-1040
Author(s):  
Gintaras Šiaudinis ◽  
Algirdas Jasinskas ◽  
Danutė Karčauskienė ◽  
Regina Repšienė

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