scholarly journals Physical and technological approaches to systemic film moistening

2021 ◽  
Vol 2094 (2) ◽  
pp. 022082
Author(s):  
V Kovalev ◽  
N A Testoyedov ◽  
A V Blinnikov ◽  
A A Voroshilova ◽  
D V Borovinsky

Abstract This article discusses the physical and technological approaches to systemic film moistening. The features of storage and operation of film in various conditions are considered. A number of features and facts are presented that affect the organization of both systemic humidification and the maintenance of long-term storage of film materials on analog media. The article presents the main factors that affect the quality of the working surface of 35 mm and 16 mm film: the specifics of the composition of the film; the effects of a temporary, natural and technological nature on motion pictures; sophisticated technology for servicing analog film projectors, rewinding devices and film checking facilities. The analysis of the sequence of manipulations of technological equipment and chemical compositions for stable operation without gusts, drying and burnout of film materials is carried out. The article gives the physicochemical content of work on the stages of film moistening, taking into account the specifics of the applied filmostatic liquids. In the step-by-step process of moistening, after the end of each stage, the main results obtained are assessed by visual comparison of the image projections, followed by the digitization of the image and the correction of the result obtained in graphic editors. To eliminate artifacts, scratches and other elements of entropy, the authors recommend using neural network approaches for working with film materials.

2021 ◽  
Vol 1 (3) ◽  
pp. 36-47
Author(s):  
Alexander Blinnikov

This article discusses the features of storage, humidification and operation of film in Central Siberian conditions. A number of features and a certain factology are revealed that affect the organization of systemic moistening (humidification) and maintenance of film materials on analog media for long-term storage and operation of film. The main factors included in the description of this article, which affect the dynamics of maintaining the working surface of 35 mm and 16 mm film: the specifics of the composition of the film; the impact of a temporary, natural and technological nature on the "light pictures"; sophisticated technology for servicing analog film projectors, rewinding devices and film checking facilities; the specifics of the sequence of manipulations of equipment and chemical compositions for stable operation without gusts, drying and burnout of film materials. The article shows the content of work on the stages of film moistening, taking into account the specifics of their application. This specificity manifests itself most significantly when working with especially fragile film materials that are of cultural value and have an actual shelf life of at least 60 years. In the step-by-step process of moistening, after the end of each stage, the main results obtained are assessed by visual comparison of the image projections, followed by the digitization of the image and the correction of the result obtained in graphic editors. If the "light picture" is of interest and needs additional adjustments to eliminate artifacts, scratches and other elements of entropy, then neural network approaches are used to work with film material. The article presents an analysis that allows you to determine the permissible option for the implementation of film moistening in the given conditions of film testing for subsequent projection on film equipment.


2021 ◽  
Vol 232 ◽  
pp. 03023
Author(s):  
Sofia Cherviak ◽  
Svetlana Levchenko ◽  
Vladimir Boyko ◽  
Dmitriy Belash

The main problems of grape storage are berry dehydration and rot. One of the solutions to reduce rot and preserve the quality of grapes during storage is the use of aerosol treatment with calcium content before storing. The aim of the study was to evaluate the effect of physiologically active substances based on calcium in various concentrations on the quality and organoleptic characteristics of table grape cvs. ‘Italia’ during long-term storage. The effectiveness of the studied systems of treatment was evaluated according to the content of sugars and titratable acids, the activity of the redox enzymes of polyphenol oxidase and peroxidase, weight loss of bunch and organoleptic properties. The greatest effectiveness established by using preparation of Master Green Ca, Brentax KCa, and Brentax Ca (in concentration 150g / 20l). Experimental treatments significantly decreased the weight loss of bunch (less than 4%), and preserved organoleptic properties of berry at a high level (8.2-8.9 points). Decrease in the activity of oxidative enzymes had a positive effect on the quality of table grapes and contributed to its better preservation. The data obtained make it possible to rationalize the system of long-term storage of grapes by using of aerosol treatment with calcium-based preparation.


Author(s):  
Ziedonis Miklašēvičs

The methodology in Latvia forest industry provide to determine the quality of energy chips only in long- term storage places before selling. Due to the lack of hard empirical data about the quality parameters of energy chips in different phases of manufacturing process, this research paper consists of: - the identification and analyses of the factors that influenced the values of energy chips quality features such as: bulk density, moisture content, ash content, higher and lower heating value according to actual moisture content and per dry mass of the chips; - the methodology for determination the quality parameters of energy chips by analysis the wood moisture content and by choice the method of the manufacturing of energy chips.


2020 ◽  
pp. 54-57
Author(s):  
Lyubov Valentinovna Efimova ◽  
Tatyana Vyacheslavovna Zaznobina ◽  
Elena Vladimirovna Gatilova ◽  
Olga Valeryevna Ivanova

Due to the fact that milk has a short shelf life, the issue of its freezing and long-term storage in the frozen state is relevant. A study was conducted on the effect of freezing on the milk quality after its defrosting of cows-mothers and cows-daughters of Red-Motley breed. As a result, it was established how milk quality indicators to change after five months of storage in a frozen state in cows of two age groups. A high correlation was established between quality indicators before and after freezing. The influence of the “freezing” factor on milk quality indicators was recognized statistically significant, the “generation” factor – not significant.


Author(s):  
A. G. Mirgorodskaya ◽  
M. V. Shkidyuk ◽  
N. N. Matyukhina ◽  
T. A. Don

The problem of utilization or recycling industrial tobacco wastes is an important problem for tobacco industry. Economically preferable way for utilizing industrial tobacco wastes (tobacco scrap) is production smokeless products and hookah blends as wastes are utilized without special treatment. Monitoring of humidity and fractional composition of cut tobacco taken from tobacco rod/cigarette spoilage (tobacco scrap) is carried. Its long-term storage leads to increasing scrap and dust quantity. Researches on utilizing tobacco scrap for sniff and hookah blend production, which are considered to be less harmful compared to cigarettes, were carried. Chemical composition of American type tobacco and scrap was defined. Nicotine content varies from 0.9 to 2.4% and carbohydrates content – from 5.6 to 9.6%. Experimental samples of hookah blend were produced and their organoleptic and taste evaluation were carried. It was found that utilization of tobacco scrap is economically efficient for hookah blend production, as quality of final product made of leaf tobacco and tobacco scrap is similar. Experimental samples of sniff tobacco were produced in order to discover possibility of utilization industrial tobacco scrap for manufacturing this product. Consumer’s properties of sniff tobacco were evaluated by 100 points tasting protocol. This technology for sniff tobacco production from tobacco scrap allows manufacturing product of good quality, decreasing technological operations, rejecting stages of tobacco selection and its cutting and as the result decreasing cost of final product. The results of the research on utilizing tobacco scrap for hookah blend and sniff tobacco production proves optimality of recycling the tobacco wastes.


2020 ◽  
Vol 8 (5) ◽  
pp. 2501-2511 ◽  
Author(s):  
Binxing Zhou ◽  
Cunqiang Ma ◽  
Xiaoying Ren ◽  
Tao Xia ◽  
Chengqin Zheng ◽  
...  

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