ANALYTICAL DETERMINATION OF THE MICRORELIEF PARAMETERS FORMED AS A RESULT OF CENTERLESS GRINDING OF THE FULL SPHERE

2021 ◽  
pp. 111-117
Author(s):  
О.П. Решетникова ◽  
Б.М. Изнаиров ◽  
А.Н. Васин ◽  
Н.В. Белоусова ◽  
Г.А. Семочкин
Keyword(s):  
Spherical Surface ◽  
Analytical Determination ◽  
Mean Deviation ◽  
Centerless Grinding ◽  
Abrasive Tools ◽  
The Cost ◽  
Production Preparation ◽  
Reliable Analytical Method

При технологической подготовке операций чистовой и отделочной обработки деталей абразивными инструментами очень важными задачами являются прогнозирование ее результатов в зависимости от назначенных режимов и назначение режимов в зависимости от требуемого качества обработанных поверхностей. Имеющиеся многочисленные справочные материалы такого характера получены в лабораторных условиях, носят дискретный характер, не учитывают специфическую топографию поверхностей абразивных инструментов и множества других условий и поэтому недостаточно достоверны. На их основе возможно планировать технологический процесс только предварительно, а затем неизбежно требуется уточнять его параметры экспериментальным путем, что приводит к значительному удорожанию процесса подготовки производства. Наличие достоверной аналитической методики позволяет кратно снизить эти затраты, и поэтому она настоятельно необходима не только и даже не столько при выполнении научных исследований, сколько в реальном производстве. В статье аналитически определены параметры микрорельефа, образующегося в результате бесцентрового шлифования полной сферы. Уточнено влияние процесса выхаживания на формирование шероховатости сферы. Приведена методика расчета среднеарифметического отклонения микропрофиля сферической поверхности In the technological preparation of the operations of finishing processing of parts with abrasive tools, it is very important to predict its results depending on the assigned modes and the purpose of modes depending on the required quality of the processed surfaces. The available numerous reference materials of this nature were obtained in laboratory conditions, are discrete in nature, do not take into account the specific topography of the surfaces of abrasive tools and many other conditions, and therefore are not reliable enough. On their basis, it is possible to plan the technological process only in advance, and then inevitably it is necessary to refine its parameters experimentally, which leads to a significant increase in the cost of the production preparation process. The availability of a reliable analytical method allows you to multiply these costs, and therefore it is urgently needed not only and even not so much when performing scientific research, but in real production. In the article, we analytically determine the parameters of the microrelief formed as a result of centerless grinding of a full sphere. We determined the influence of the nursing process on the formation of the sphere roughness. We present a method for calculating the arithmetic mean deviation of the micro-profile of a spherical surface

scholarly journals Determination of the transfer step of the ore chute while mining the technogenic deposit of the bulk type

2020 ◽  
Vol 166 ◽  
pp. 02004
Author(s):  
Volodymyr Peregudov ◽  
Ihor Hryhoriev ◽  
Serhii Joukov ◽  
Yulian Hryhoriev
Keyword(s):  
Raw Materials ◽  
Mining Industry ◽  
Process Conditions ◽  
Geological Conditions ◽  
Scientific Task ◽  
Technogenic Deposit ◽  
Mining Works ◽  
The Cost

Further development of the open mining works on the domestic enterprises will be accompanied by the worsening of mining-geological conditions and declining of the quality of iron ore raw materials. In the same time, the accumulated mining wastes, that can make the technogenic deposits, pass into one of the important sources of the mineral raw materials. Taking into account this thing, the development and implementation of the modern technological circuits of the technogenic deposit development is an actual calling for mining industry, and determination and optimization of process conditions of the technogenic deposit development – is the scientific task of this publication. The obtained results of studies of the optimum step value of the ore chute transfer during the technogenic deposit development can be used by design organizations and mining enterprises for designing works. The obtained methodology and the proposed mathematical dependencies will reduce the cost of mining of the technogenic deposit due to the reasonable timely transfer of the open ore chute.

scholarly journals Nutritional quality of preparations based on Döner Kebab sold in two towns of Veneto Region, Italy: preliminary results

2015 ◽  
Vol 4 (2) ◽  
Author(s):  
Monica Panozzo ◽  
Luciano Magro ◽  
Ilario Erle ◽  
Stefano Ferrarini ◽  
Riccardo Murari ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Saturated Fatty Acids ◽  
Daily Intake ◽  
Analytical Determination ◽  
Nutritional Values ◽  
Carbohydrate Concentration ◽  
Significant Difference ◽  
Serving Sizes

The sampling activity for this study was performed between September and October 2012. It involved seven shops in Verona, eleven in Vicenza and two in its province (Bassano del Grappa), northern Italy. The scope was to measure the values of energy and nutritional components and to identify the profile of fatty acids in a serving of ready to eat Döner Kebab. The samples were collected according to the usual proportions of this preparation, keeping all the components (bread, meat, vegetables and sauces) separated in different bags. In the laboratory, each component was weighed and, after pooling, processed for the analytical determination of humidity, crude protein, lipid content and fatty acid profile, ashes, sodium (salt), carbohydrate, collagen (measured only in meat) and fibre. The results showed a highly standardized recipe, while the comparison between the two towns showed a significant difference in carbohydrate concentration (mainly due to the quantity of bread used). By observing data on the serving sizes sampled (274 to 618 g) and the nutritional values obtained, Döner Kebab can be seen as a ready to eat dish providing much energy: on average a serving size covers 45 and 36% of the recommended daily intake of energy, 95.7 and 82.1% of protein, 42.5 and 33.4% of saturated fatty acids for females and males, respectively, and 85.5% of salt regardless of gender. Döner Kebab can be considered as an occasional substitute to one of the two main meals of the day.

scholarly journals Quality consideration of building and renovation works while forensic structural inspections to determine the volume and cost of construction

2021 ◽  
Vol 23 (1) ◽  
pp. 236-245
Author(s):  
T. Dudnyk ◽  
L. Chintea
Keyword(s):  
Building Codes ◽  
Construction Work ◽  
Field Surveys ◽  
Quality Of Work ◽  
Physical Volume ◽  
The Cost ◽  
Cost Of Construction ◽  
Construction Works

Currently, forensic methods and regulations in the field of construction do not explain how quality of work affects the procedure of forensic examinations and research related to determining the work scope. While carrying out building and renovation services, it is possible to control provided construction and renovation services,  establish their physical volume and quality. While research, forensic expert can identify violations of building codes, as well as determine the cost of refurbishment or elimination of defects made providing services. The scoop of performed works is determined by geometric parameters of construction elements, established during field surveys using design and as-built documentation. While carrying out field surveys, it is necessary (along with the determination of service scope) to pay attention to the compliance of the work performed with the requirements of building codes. The article outlines problematic issues and provides a list of basic indicators determining the scoop and quality of the construction works carried out, indicated in the reporting documentation drawn up by contractors based on results of activities in the field of construction. Actual issue arising in the establishment of the scoop and cost of construction work is considered  that quality does not meet the requirements of regulatory documents in the field of construction. It is explained how the quality of the work performed affects the results of research related to the determination of the actually completed volumes of repair, building and renovation and construction work.

scholarly journals FEATURES OF DETERMINATION OF THE COST OF PLANTS CERTAIN KINDS WHEN CARRYING OUT FORENSIC MERCHANDISING EXAMINATIONS

2017 ◽  
Vol 17 ◽  
pp. 351-359
Author(s):  
О. S. Obolentseva-Krasivska
Keyword(s):  
Ornamental Plants ◽  
Biological Properties ◽  
Planting Material ◽  
The Subject ◽  
Definition Of ◽  
The Cost ◽  
Market Relations

Flowers, ornamental plants, planting material (saplings) and other plants with regard to which the market with possibility of carrying out independent adequate marketing was formed, are the subject of evaluation by the experts in field of forensic merchandising. With the development of the market and market relations such goods as flowers, planting material and others are increasingly encashed in the market of Ukraine and become the objects of forensic merchandising examinations and expert researches. Special feature of merchandising researches of the plant origin objects is the use of the comprehensive approach to the estimation of their quality and cost. Researches are carried out with the purpose of determination of properties, consumer value, conformity to standards and specifications of plants certain kinds. When studying a considerable variety of flower plants, one distinguishes scientific and industrial classifications. In merchandising flowers industrial classification of flower ornamental plants which provides distribution of flower plants to the separate groups similar on biological properties, the agricultural technician of cultivation and practical application in gardening is used. During carrying out merchandising examinations on an establishment of consumer properties of certain kinds plants, namely establishments organoleptic indicators of quality and quantity of flower decorative production given for research, the expert checks conformity of this production to requirements of normative and technical documents. Requirements to quality of flower production are normalised by standards depending on production kind – cutf lowers, pottery blossoming plants, pottery decorative sheet plants, sprouts of flower decorative production, planting material, seeds of flower ornamental plants. At carrying out merchandising researches of flower decorative production, plants and saplings it’s necessary for merchandising experts to pay special attention on definition of quality indicators and a grade of plants according to standards, and also to consider data concerning age of a plant, novelty of a grade and origin country of production.

PRINCIPLES OF APPROACH TO DETERMINATION OF TECHNOLOGICAL ELEMENT BASE FOR AUTOMATION OF MACHINING PRODUCTION PREPARATION THROUGHOUT CYCLE

2021 ◽  
pp. 43-51
Author(s):  
E. N. Kolybenko
Keyword(s):  
Design Quality ◽  
Reference Information ◽  
Knowledge Objects ◽  
Problems Of Practice ◽  
Primary Basis ◽  
Elementary Basis ◽  
Production Preparation ◽  
Element Base

The use in the practice of design works of technological preparation of production (CCI) of parameters of design quality of the main elements of integration of the design (checkpoint) element base prevents transition of CCI to information technology of automation of a certain level of solution of problems of practice throughout its cycle. This is manifested, in particular, in the fact that during the change of technological operations of transformation along their route, as well as between the stages of CCI and checkpoint, information and logical links of knowledge are objectively interrupted. When determining a continuous, flexible algorithm in the technology of automation of solving problems of CCI practice, significant difficulties arise. Concepts of existing knowledge were often not up-to-date, which hampered automation – a fast communication system was needed. The primary basis of automation is the formalization of knowledge. Insufficient formalization of knowledge (the content is descriptive) leads to the use of inefficient dialogue technologies, the work of which is organized with reference information in the electronic form of its display. To overcome these difficulties, the structure of the CCI knowledge base in its hierarchy is proposed for seven levels of basic objects of various types, it is based on formalized approaches. Knowledge objects are focused on the consistent and continuous solution of CCI practice throughout its cycle. The structure of all knowledge objects is based on its own technological element base, which is organic for CCI. Only on such an elementary basis can the main target functions of CCI be realistically achieved in solving the problems of its practice on their possible set.

scholarly journals ANALYSIS OF THE DEGREE OF ADHERENCE TO THERAPY IN PATIENTS WITH DIAGNOSED DEPRESSION

2018 ◽  
Vol 6 ◽  
pp. 916-921
Author(s):  
Antonia Kondova ◽  
Anna Todorova ◽  
Antoaneta Tsvetkova ◽  
Kalina Andreevska ◽  
Daniela Grekova ◽  
...  
Keyword(s):  
Antidepressant Treatment ◽  
Education Quality ◽  
Social Significance ◽  
Poor Patient ◽  
Cost Of Health Care ◽  
Clear Idea ◽  
The Cost ◽  
Adherence To Therapy

Introduction: Depression is the most common form of mental disorder of great social significance. Antidepressant treatment is a standard approach to treat depressed patients, but in order to be effective, patients need to follow their strictly prescribed treatments. Bad compliances are mostly associated with side effects, poor patient awareness, comorbidity of the disease, and a lack of communication with healthcare professionals.Objectives: The aim is to investigate the level of adherence to the therapy of patients with a diagnosed depressive condition.Methods: In order to achieve this aim, a survey was conducted among 120 patients with diagnosed depression when receiving their prescribed drugs from a pharmacy. Determination of patient`s adherence was done using the Morriski test- as well as a short questionnaire in parallel as a validated tool giving a clear idea of the degree of adherence to therapy.Results: The results show that the patients under study exhibited unsatisfactory adherence to the assigned therapy. The total coefficient for the entire population is 1.68. Compared with the reference values (0-4), patients were found to have 42% adherence.Conclusions: Inadequate adherence to therapy leads to a worsening of the condition of patients with depression while also increasing the cost of health care. A number of approaches are required such as patient education, quality communication between doctors, patients and pharmacists, socio-economic measures to change patient's beliefs and perceptions of treatment, and to improve adherence to the therapy and quality of life of patients suffering from depression.

scholarly journals PRACTICAL QUESTIONS FOR SILO BAGS GRAIN STORAGE TECHNOLOGY

2019 ◽  
Vol 19 (2) ◽  
pp. 10-16
Author(s):  
O. M. M. ZHELOBKOVA ◽  
G. N. STANKEVYCH
Keyword(s):  
Storage Period ◽  
Final Analysis ◽  
Grain Storage ◽  
Storage Site ◽  
Special Equipment ◽  
Storage Technology ◽  
Sanitary Condition ◽  
The Cost

In enterprises with limited capacities and a low-powered grain drying facilities there is a problem of economical and reliable storage of dry, wet and moist grains. One of the options for its successful solution is the application of grain storage technology in silo bags, tested in many enterprises, the basic principle of which is based on the self-preservation of grain under hermetic conditions in an environment of carbon dioxide. To implement this technology, it is necessary to determine the suitability of the batch of grain for loading in the silo bags on the basis of an operational analysis of the grain quality. After loading the grain, the silo bags are sealed, the grain mass is stored for a certain time and then unloaded. After many years of industrial testing of grain storage technology in silobags, recommendations have been developed that allow to ensure the quantity and proper quality of grain in the process of implementation of the technology. To do this, it is provided to carry out a whole range of activities - personnel training, the selection and preparation of a storage area for grain, deratization, the determination of the quality of grain at all stages and a safe shelf-life, depending on the condition of the grain, weighing of the grain; loading silo bags and placing them on the site; drawing of marks for identification of silobags; monitoring of the state of silo bags and grain and the restoration of the integrity of the silo bags throughout the storage period; accounting for grain in the silobags; processing of unconditioned grain; object protection, final analysis of the work performed, identify problems and ways to solve them. The storage site for grain in the silo bags must be cleaned of stubble and grass, sharp objects, grain residues, solid hardwood or the most densely packed soil (the clay surface is undesirable, as precipitation makes imposible laying and unloading of silobags), ensure no stagnation of water during rains and melting snow, provide the possibility of free movement of special equipment on the site. It must be deratized and fenced with a mesh with small openings, a height of at least 1 m and dipped. The analysis of the characteristics of three-layer silobags showed that to optimize the storage of dry grain, it is advisable to use the largest silobags of 90 m in length, since they have a larger capacity, there will be less time spent on dressing and sealing the silobags, saving space between the silo bags lying along one another , there will be less length of silobags to go for tying, as well as saving money on the cost of silobags, the cost of working time and fuel (decreases the number of transfers of special equipment). It is advisable to take into account the possibility of unloading the sleeve during one shift. At all stages (loading, storage, unloading) the determination of the quality of grain, monitoring the condition and restoring the integrity of the silo bags checking the sanitary condition of the site and the presence of baits should be carried out. Precautions should be observed, grain accounting, working with non-standard grain and final analysis of grain storage results should be carried out.

Financial Innovation

2019 ◽  
pp. 115-139
Author(s):  
Murat Akkaya
Keyword(s):  
Financial Innovation ◽  
Information Economy ◽  
Innovation Research ◽  
Long Run ◽  
Funds Management ◽  
Economy Globalization ◽  
The Cost ◽  
Management Of Uncertainty

Financial innovation offers cheaper and available services to financial system and it increases quality of service and products in a long run. The functions of financial innovation are decrease in the cost of payments and increase in the speed of determination of fraud, mechanism for the pooling of funds, management of uncertainty and controlling of risk, manages agency costs, and enhancement of liquidity. Technology contributes to the design and pricing of new instruments and facilitates the identification, measurement, and monitoring of risks in portfolios containing complex instruments. Innovation research has shown that the increase in countries' innovation performance plays a key role in economic and social development, prosperity, and development. Financial innovation is the most important driving force for the transition to the information economy. Globalization and global competition require innovation. Hence, the future is mobile and should be innovative.

scholarly journals Determination of influencing metricsin water fall model

2018 ◽  
Vol 7 (2.26) ◽  
pp. 7
Author(s):  
K David ◽  
R Anand
Keyword(s):  
Critical Role ◽  
Project Manager ◽  
Senior Management ◽  
Project Teams ◽  
Cycle Model ◽  
The Right ◽  
The Cost ◽  
The Relationship

You cannot control what you can’t measure - Tom DeMarco -Metrics plays a critical role in any industry. The metrics can tell the senior management the health of the activity in that organization. In the paper, we have studied the relationship between the metrics and the quality of deliverables. Once the right metrics are identified for a particular phasein the life cycle model it will help the project manager to proactive-ly detect the issues earlier and arrest the defects. This can help the project teams to deliver the product on time without defects. There by the cost of the projects can be reduced which in turn will have high customer satisfaction.  

scholarly journals Determination of Downtime Cost of Ready Mix Concrete Plant and Transit Mixer

2019 ◽  
Vol 8 (9) ◽  
pp. 3105-3108
Keyword(s):  
Construction Projects ◽  
Cox Model ◽  
Rapid Progress ◽  
Quality Of Work ◽  
The Cost ◽  
The Impact ◽  
Cost Of Construction ◽  
Ready Mix Concrete

In today’s scenario, construction equipment plants are essential for any construction projects and are also important for rapid progress and improvement in the quality of work. Breakdown and less productivity of equipment can increased the cost of construction project. Hence it is important that attempts to be made to increase the productivity of equipment. Earlier research has often addressed this fact, but it has rarely explained the causes and consequences of downtime. Thus this research paper highlights various causes of downtime of RMC plant and Transit Mixer. Also the downtime cost of RMC plant and Transit Mixer (TM) is determined by using mathematical model, COX Model and NUNALLY Model. These models are used to identify the downtime cost of equipment where COX Model gives the value by only taking into account of failure machine and not considering the impact, while the NUNALLY Model gives higher value due to considering the overall impact of failure machine on work.

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