scholarly journals RADIOLOGICAL EFFICIENCY OF AGRICULTURAL COUNTERMEASURES APPLIED IN RADIOCONTAMINATED FIELDS

Author(s):  
Georgy Perepelyatnikov ◽  
Lyudmila Perepelyatnikova ◽  
Tatyana Ivanova ◽  
Lyudmila Kalynenko ◽  
Nataliya Grytsyuk ◽  
...  

Implementation of agricultural countermeasures is one of the principal methods that allow to decrease irradiation doses. Summarizing available information about countermeasures and taking into account the experience in the elimination of the nuclear accident consequences, it is demonstrated that the most widespread countermeasures after the Chernobyl accident were soil ameliorations. These methods are simple, inexpensive and effective in reducing radionuclide transfer from the soil to agricultural crops. Among the above mentioned methods, agrotechnical countermeasures were the most applicable, decreasing the contamination of plant products up to 20 times. Radical and surface improvements of natural and semi‐natural meadows were carried out on a large scale on contaminated lands. The biggest decrease of vegetation contamination was observed after the radical improvement of meadows, with and without drainage, 43 and 16 times, respectively. Other effective measures are agrochemical methods. In fact the application of various fertilizers permitted to decrease the radioactive contamination of production averagely 2–3 times. Potassium fertilizers were the most effective for the decrease of 137Cs transfer to harvested crops. Application of sorbing minerals decreased 137Cs transfer to crops from a peaty soil up to 11 times, and from a sod‐podzolic soil up to 3 times. Moreover, these countermeasures increased the yield and improved the quality of products.

Author(s):  
A. N. Babichev ◽  
◽  
A. A. Babenko ◽  

Purpose: to analyze the experience of Russian scientists in the field of application of a differentiated approach to agricultural crops irrigation. The overview of research work of domestic scientists on the use of an irrigation system in agriculture, in which the provision of agricultural crops with water to maintain a given level of the minimum water capacity will be carried out during the most critical periods of their growth and development is presented. During irrigation, the timing, frequency, irrigation rates depend on the level of groundwater occurrence, agrochemical properties of soils, weather and climatic conditions, phases of growth and development of crops. The application of a differentiated irrigation regime to maintain a given level of pre-irrigation moisture allows increasing the productivity of agricultural crops, the quality of products obtained while reducing irrigation and watering rates, the number of waterings. Conclusions. The study of the results of research work of domestic scientists in the field of influence of irrigation and the fertilization system on the yield and quality of agricultural products allows concluding that obtaining the planned yields is possible only if irrigation regimes are observed and the level of soil fertility is maintained by applying various fertilizers. The use of a differentiated approach to irrigation while maintaining a given level of pre-irrigation soil moisture during critical periods of crop development allows reducing irrigation water consumption and optimizing irrigation rates and their quantity. The study of a differentiated irrigation regime is promising now and in the near future, taking into account the deteriorating water supply in the territory of our country, associated with a change in weather and climatic conditions.


Author(s):  
A.M. Dmitriev ◽  
N.V. Korobova

The limited use of cold volume stamping for the production of parts only for narrow traditional range of such parts in mass and large-scale productions is shown. Original technological techniques that improve the quality of products and the punches fatigue resistance are developed to expand the application of this technology to new types of parts. Such techniques used at various stages of the production process by cold forging of deep steel glasses are described. The value of rational design of stamps and the example of design of well-proven production stamp are shown.


2014 ◽  
Vol 18 (03) ◽  
pp. 1440001
Author(s):  
ALKA ASHWINI NAND ◽  
PRAKASH J. SINGH ◽  
ANANYA BHATTACHARYA

Organisations lack clear guidance on how they can become more innovative at the operational level. The operations strategy literature shows that organisations compete on four generic capabilities: cost efficiency, quality of products or services, speed of delivery, and flexibility of operations. Should organisations choose between these capabilities, i.e., engage in trading-off these capabilities and focussing on one capability ("trade-off" model), or combine them, thereby competing on multiple capabilities simultaneously ("cumulative capabilities" model), remains an unresolved issue. Our paper addresses this by empirically testing the relationship between the four operations capabilities and innovation performance through a large-scale global study of manufacturing plants. Our results show support for the cumulative capabilities model and not the trade-off model. Furthermore, both delivery and flexibility capabilities are comparatively stronger predictors of innovativeness than cost efficiency and quality capabilities. This study provides interesting insights for practitioners and managers in generating clearer guidelines as to what organisations need to do with their key operational capabilities, in order to become more innovative.


2019 ◽  
Vol 81 (6) ◽  
Author(s):  
Roohollah Taherkhani ◽  
A. L. Saleh

The introduction of modern technologies and development of building systems has influenced a fundamental transformation in many aspects of construction industry. However, still in major parts of building projects, conventional methods are being used in Iran. Traditional methods cause many problems such as project prolongation, low economic efficiency, too much stuff, and low quality of products. These shortcomings are more tangible in large-scale housing projects that require a vast domain of constructions; therefore, transformation from the current conventional building systems to the industrialized building systems (IBS) is needed more than ever. In order to this transformation it is vital that first the perceptions of the industry on these issues are adequately studied in this reseach. According to the lack of strategic plans and effective measures to promote IBS at country level, in addition to introducing the level of awareness and familiarity to IBS technical knowledge, the prevalence of both IBS components implementation and using IBS in different type of projects in Iran conducted. A likert based questionnaire was designed according to the level of awareness and the prevalence of IBS was evaluated applying the mean index and average ranking method. The results indicate that the prevalence of IBS in terms of components and types of projects is not at significant level. This paper provides an overview of IBS current state in Iran. Clearly, this awareness will prompt construction industry practitioners to a deeper exchange of ideas and promoting IBS in the future.


Author(s):  
Yu Zhu ◽  
Junxiong Zhu ◽  
Jie Hou ◽  
Yongliang Li ◽  
Beidou Wang ◽  
...  

In e-commerce websites like Taobao, brand is playing a more important role in influencing users' decision of click/purchase, partly because users are now attaching more importance to the quality of products and brand is an indicator of quality. However, existing ranking systems are not specifically designed to satisfy this kind of demand. Some design tricks may partially alleviate this problem, but still cannot provide satisfactory results or may create additional interaction cost. In this paper, we design the first brand-level ranking system to address this problem. The key challenge of this system is how to sufficiently exploit users' rich behavior in e-commerce websites to rank the brands. In our solution, we firstly conduct the feature engineering specifically tailored for the personalized brand ranking problem and then rank the brands by an adapted Attention-GRU model containing three important modifications. Note that our proposed modifications can also apply to many other machine learning models on various tasks. We conduct a series of experiments to evaluate the effectiveness of our proposed ranking model and test the response to the brand-level ranking system from real users on a large-scale e-commerce platform, i.e. Taobao.


2018 ◽  
Vol 8 (1) ◽  
pp. 122
Author(s):  
Nur Ita Sari

Performance measurement is a necessary thing in an organization in order to improve the quality of products and services that are owned as well as public sector organizations such as the STO Singosari. This study used descriptive qualitative approach. The analytical method used to measure four balanced scorecard perspectives is financial perspective, customer, internal business processes and growth and development. Results from the study indicate that the financial perspective is measured from tax revenues provide good results, although not fully realized. The realization of tax revenue on STO Singosari decreased from 2014 to 2015 from 93.18% to 92.35%. From a customer perspective can be concluded that the performance of the service provided is good. Internal business processes perspective also showed that the STO Singosari is able to provide service innovations so it make the process faster process. And for the perspective of growth and development has shown good results for most employees already qualified and available information network system has supported the company's performance.


Author(s):  
Rajesh Singh Tomar ◽  
Bhawna Sharma ◽  
Shuchi Kaushik ◽  
Raghvendra Kumar Mishra

The quality of food is highly affected by different types of biological, chemical, and physical contaminants. Microbial contaminations that are transferred through direct or indirect pathways such as through saliva, pest droppings, blood, or fecal matter affect the quality of food worldwide. Food can be spoiled by bacteria as well as fungus. The fungal microbes secrete toxins to intoxicate the food material rendering it unfit for consumption. The objective of the present review is to explore the application of essential oil (EO) as potent antifungal agent and thus good sources of food preservative. We have reviewed previously published papers on antimicrobial activity of EOs. The antimicrobial activity of these natural plant products has been assayed by different approaches. Apart from their activity against microbes, the other beneficial effects of these plant products such as antioxidant activity and enhancing the food quality are also observed by various groups of scientists all over the globe. On the basis of results obtained by different researchers worldwide, the EOs can be authenticated as a food preservative. For the preservation of food, several chemicals are being used by different food industries at large scale; however, they have some limitations. Recently much attention has been directed toward the development of less or negligibly toxic ethno-products which may be utilized for human use for several purposes such as food preservatives, in cosmetics, and medicines. The plant-based volatile EOs and non-volatile secondary metabolites have wide applications in dietary supplements, food flavoring and preservation, folk medicine, and fragrance industry. Several reports have confirmed the antioxidant efficacy of plant-based EOs in vitro and in vivo. Application of plant materials as dietary supplements and preservatives is mainly due to their antioxidant, antimicrobial, and other biological as well as pharmaceutical potentials. Nowadays, EOs and their components are gaining increased attention because of their relatively safe status, their wide acceptance by consumers and the possibility of their exploitation for potential multipurpose uses. It will be relevant to extract EOs, since these extracted oils may have antimicrobial potential which can be utilized for their possible roles against food spoilage microbes.


Author(s):  
Olga Merzlova

One of the measures to eliminate the consequences of the Chernobyl accident was the exclusion of highly contaminated land from agricultural use. Due to the positive dynamics of the radiation situation, the issue of land return becomes relevant. However, in the period of exclusion of these lands the land clearance degradation processes were developing. The second part of the article is devoted to the issue of economic evaluation of the expediency of land return and the mutual coordination of the results of separate stages of complex ecological and economic evaluation. The research was carried out in Mogilev branch Institute of radiology (Republic of Belarus).


2020 ◽  
Vol 0 (6) ◽  
pp. 24-30
Author(s):  
Olga Merzlova

One of the measures to eliminate the consequences of the Chernobyl accident was the exclusion of highly contaminated land from agricultural use. During the natural decay of radionuclides there is a decrease in the activity of 137Cs and 90Sr in the soil. The issue of land return becomes relevant. The article describes the main stages of formation of the system of criteria and indicators of ecological and economic evaluation of the expediency of land return. The first part of the article is devoted to the issue of radiological evalation.


Author(s):  
A. Babirad

Cerebrovascular diseases are a problem of the world today, and according to the forecast, the problem of the near future arises. The main risk factors for the development of ischemic disorders of the cerebral circulation include oblique and aging, arterial hypertension, smoking, diabetes mellitus and heart disease. An effective strategy for the prevention of cerebrovascular events is based on the implementation of large-scale risk control measures, including the use of antiagregant and anticoagulant therapy, invasive interventions such as atheromectomy, angioplasty and stenting. In this connection, the efforts of neurologists, cardiologists, angiosurgery, endocrinologists and other specialists are the basis for achieving an acceptable clinical outcome. A review of the SF-36 method for assessing the quality of life in patients with the effects of transient ischemic stroke is presented. The assessment of quality of life is recognized in world medical practice and research, an indicator that is also used to assess the quality of the health system and in general sociological research.


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