scholarly journals Environmental and economic foundations of system optimization of operational, technological and construction parameters of rice irrigation systems

2017 ◽  
Vol 8 (2) ◽  
pp. 76-82 ◽  
Author(s):  
Vasyl Turchenyuk ◽  
Nadiia Frolenkova ◽  
Anatolii Rokochynskyi
Keyword(s):  
Management Strategies ◽  
System Optimization ◽  
Resource Saving ◽  
Irrigation Systems ◽  
Technical Parameters ◽  
Rice Irrigation ◽  
Complex Optimization ◽  
Methodological Approaches ◽  
Economic Foundations ◽  
Selection Of

The paper substantiates the necessity to carry out system optimization of operational, technological and construction parameters of water regulation in the operation of rice irrigation systems, lays out methodological approaches and results. This research formulates approaches to the selection of project criteria and conditions of economic and environmental optimization during the construction of complex optimization models in the projects of their reconstruction and operation taking into account climatic management strategies of such objects. The proposed set of measures as a result of system optimization is focused on improving the natural and amelioration state of rice irrigation systems, improving their technological and technical parameters, introducing of water and resource saving regimes of rice irrigation and related rice crop rotations.

scholarly journals Providing of resource saving in Danube rice irrigation systems based on reuse of drainage water and wastewater

2020 ◽  
Vol 19 (1) ◽  
pp. 43-48
Author(s):  
Anatoliy Rokochynskiy ◽  
Nadiia Frolenkova ◽  
Nataliia Prykhodko ◽  
Vasyl Turcheniuk ◽  
Pavlo Volk
Keyword(s):  
Drainage Water ◽  
Resource Saving ◽  
Irrigation Systems ◽  
Rice Irrigation ◽  
Water And Wastewater

scholarly journals Development of resource-saving technologies for rice cultivation on rice irrigation systems in the Krasnodar Territory

2021 ◽  
Vol 37 ◽  
pp. 00029
Author(s):  
Igor Prikhodko ◽  
Stanislav Vladimirov ◽  
Daniil Alexandrov
Keyword(s):  
Drip Irrigation ◽  
Agricultural Sector ◽  
New Technologies ◽  
Land Reclamation ◽  
Rice Production ◽  
Rice Cultivation ◽  
Industrial Complex ◽  
Resource Saving ◽  
Irrigation Systems ◽  
Rice Irrigation

According to the studies carried out by the US Geological Survey (USGS) under the project GFSAD30, Russia ranks fourth in the world in the number of fertile lands. However, today there are some problems that “slow down” the development of the Russia’s agricultural sector, including the rice-planting complex. One of the main problems of the Russian agro-industrial complex is unsustainable environmental management, which leads to inefficiency and sometimes loss of agricultural production. This is caused by the “rigidity” of the legal framework, the reluctance or inability of the economy to switch to new resourcesaving technologies, as well as the fear of partially or completely losing the crop when switching to new technologies. For the “soft” transition of the economy to new resource-saving technologies, we propose a resource-saving technology for cultivating rice on underground drip irrigation under mulch film on rice irrigation systems, the introduction of which proved its effectiveness, as well as the relevance of our study. The efficiency of proposed resource-saving technology of rice cultivation on drip irrigation is expressed in the increase of profitability of rice production by 26%, reduction of irrigation norm by more than 5 times, labor intensity of rice production by 42% and material costs by 24%. The proposed technology not only reduced the anthropogenic load, but also improved the land reclamation condition, including the situation in the rice irrigation ecosystem. Further development of drip technologies in the rice sector of Russia will allow developing fundamentally new, ecological-reclamative, balanced rice crop rotation with the inclusion of vegetable and cucurbits crops. The proposed technology will provide an opportunity to cultivate rice outside rice irrigation systems on previously rich lands, which will give agro-industrial workers new opportunities and prospects in rice production.

INVESTIGATION OF SORPTION MATERIALS FORTHE PURIFICATION OF DRAINAGE AND WASTE WATER FROM RICE IRRIGATION SYSTEMS

2021 ◽  
pp. 6-13
Author(s):  
L. V. КIREICHEVA ◽  
Keyword(s):  
Waste Water ◽  
Irrigation Systems ◽  
Rice Irrigation ◽  
Selection Of

The purpose of the study is the selection of sorption materials for the purifi cation of drainage and waste water from the Sarpinsky irrigation and watering system.

CRITERIONS FOR THE EFFECTIVENESS OF SOCIALLY IMPORTANT INVESTMENT PROJECTS AND THEIR FORMULAS ADOPTED IN RUSSIAN PRACTICE

2020 ◽  
Vol 2 (8) ◽  
pp. 58-64
Author(s):  
A. F. AGEEVA ◽  
Keyword(s):  
Performance Indicators ◽  
Payback Period ◽  
Internal Rate Of Return ◽  
Investment Projects ◽  
Regulatory Documents ◽  
Project Analysis ◽  
Analytical Work ◽  
Methodological Approaches ◽  
Further Development ◽  
Selection Of

The article analyzes domestic guidelines for assessing the effectiveness of investment projects reflected in the regulatory documentation, both current and invalid. Considered are methodological approaches to calculating key performance indicators of investment projects - net discounted income, internal rate of return, discounted payback period and profitability index. The results of the analysis and recommendations for the further development of national regulatory documents for project analysis and methodological approaches to assessing the effectiveness of socially significant investment projects are presented. The results of the analytical work presented in the article are planned to be used to create a methodology for the selection of socially significant projects for the provision of state support.

Optimum Selection of Hydraulic Devices for Water Hammer Control in the Pipeline Systems Using Genetic Algorithm

2003 ◽  
Author(s):  
Bong Seong Jung ◽  
Bryan W. Karney
Keyword(s):  
Genetic Algorithm ◽  
Steady State ◽  
Optimization Problems ◽  
System Optimization ◽  
Water Hammer ◽  
Pipeline System ◽  
Optimal Size ◽  
Protection Strategy ◽  
Hydraulic Devices ◽  
Selection Of

Genetic algorithms have been used to solve many water distribution system optimization problems, but have generally been limited to steady state or quasi-steady state optimization. However, transient events within pipe system are inevitable and the effect of water hammer should not be overlooked. The purpose of this paper is to optimize the selection, sizing and placement of hydraulic devices in a pipeline system considering its transient response. A global optimal solution using genetic algorithm suggests optimal size, location and number of hydraulic devices to cope with water hammer. This study shows that the integration of a genetic algorithm code with a transient simulator can improve both the design and the response of a pipe network. This study also shows that the selection of optimum protection strategy is an integrated problem, involving consideration of loading condition, device and system characteristics, and protection strategy. Simpler transient control systems are often found to outperform more complex ones.

Chronic Urticaria: A Canadian Perspective on Patterns and Practical Management Strategies

2000 ◽  
Vol 4 (2) ◽  
pp. 89-93 ◽  
Author(s):  
Jasdeep K. Sharma ◽  
Robert Miller ◽  
Scott Murray
Keyword(s):  
Chronic Urticaria ◽  
Complete Blood Count ◽  
Management Strategies ◽  
Age Groups ◽  
Diagnostic Methods ◽  
Channel Blockers ◽  
Prick Test ◽  
Allergy Test ◽  
Causative Factors ◽  
Selection Of

Background: Chronic urticaria is a common condition and is a source of great frustration to patients. It has been suggested that there may be differences among physicians in their approach to this common clinical entity. Objective and Method: A questionnaire was distributed Canada-wide to allergists, dermatologists, and a selection of practitioners with an interest in alternative medicine. The survey included questions on demographics, epidemiology, causative factors, diagnostic methods, therapeutic strategies, follow-up advice, and efficacy of therapies, with emphasis on personal experience. Results: The response rates of allergists and dermatologists were 31% and 36%, respectively. There was wide representation from all regions of Canada and from physicians from all age groups, both genders, different types of practice, and years in practice. The reported incidence per month was 13 and 4 patients for allergists and dermatologists, respectively. The prevalence was 199 and 44 patients by allergists and dermatologists, respectively. Comparison of causative factors showed differences in the experiences of the two groups. Diagnostic investigations were requested in a similar pattern with respect to timing. The specific tests ordered by the groups showing statistical difference were complete blood count (CBC), differential, C4 complement, antinuclear antibodies, and IgE antibody assay. Allergists chose the skin prick test (100%) as the most important allergy test. Dermatologists ranked skin prick (50%), radioallergosorbent test (RAST) (20%), and skin patch (30%) as the most important tests. The top six choices of pharmaceutical therapies chosen by the groups were similar, but in a slightly different order. The responders ranked their personal selection of antihistamines according to effectiveness. Hydroxyzine (Atarax®) and cetirizine (Reactine®, Allegra®) were selected as first and second most effective agents by both groups. The results also show effective experience by both groups with nonsedating and sedating antihistamines. Also, doxepin, ketotifen, and cimetidine are used frequently by both groups. The experience of dermatologists in Canada with respect to other modalities including psoralen ultraviolet A (PUVA) therapy, danazol, chelation, calcium channel blockers, and acyclovir is limited and efficacy is ranked either neutral or ineffective. Allergists reported even less experience with these therapies. Conclusion: Allergists and dermatologists across Canada show interesting similarities and differences in their practical approach to the management of chronic urticaria. With the sharing of this information, these two specialties will be better equipped to effectively manage patients suffering from chronic urticaria.

scholarly journals Efficient Node and Sensed Module Management for Multisensory Wireless Sensor Networks

Sensors ◽  
2018 ◽  
Vol 18 (7) ◽  
pp. 2328 ◽  
Author(s):  
Juan Feng ◽  
Xiaozhu Shi
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Management Strategies ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Tracking Accuracy ◽  
Node Selection ◽  
Information Utility ◽  
Save Energy ◽  
Selection Of

In target tracking wireless sensor networks, choosing a part of sensor nodes to execute tracking tasks and letting the other nodes sleep to save energy are efficient node management strategies. However, at present more and more sensor nodes carry many different types of sensed modules, and the existing researches on node selection are mainly focused on sensor nodes with a single sensed module. Few works involved the management and selection of the sensed modules for sensor nodes which have several multi-mode sensed modules. This work proposes an efficient node and sensed module management strategy, called ENSMM, for multisensory WSNs (wireless sensor networks). ENSMM considers not only node selection, but also the selection of the sensed modules for each node, and then the power management of sensor nodes is performed according to the selection results. Moreover, a joint weighted information utility measurement is proposed to estimate the information utility of the multiple sensed modules in the different nodes. Through extensive and realistic experiments, the results show that, ENSMM outperforms the state-of-the-art approaches by decreasing the energy consumption and prolonging the network lifetime. Meanwhile, it reduces the computational complexity with guaranteeing the tracking accuracy.

scholarly journals Theoretical and Methodological Approaches to the Study of Social Structure: Western Ideas in Domestic Practice

2020 ◽  
Author(s):  
Iuliia Nikolaevna Soloveva
Keyword(s):  
Social Structure ◽  
Social Stratification ◽  
Russian Society ◽  
Accurate Analysis ◽  
Factors Influencing ◽  
Structure Changes ◽  
The Social ◽  
Domestic Practice ◽  
Methodological Approaches ◽  
Selection Of

The study of the social structure of society involves the selection of features that determine social stratification. The variety of these features contributes to the emergence of a large number of theoretical and methodological approaches. The article examines the most significant approaches for studying the social structure of Russian society based on the ideas of representatives of Western sociology: from class theories to theories of social stratification. In the process of transformation of society, not only the structure changes, but also the factors influencing it, which leads to the emergence of new approaches for the most complete and accurate analysis.

scholarly journals Decision Making Methods in Comparative Studies of Complex Economic Processes Management

2020 ◽  
pp. 652-664
Author(s):  
Kesra Nermend ◽  
Mateusz Piwowarski ◽  
Mariusz Borawski
Keyword(s):  
Decision Making ◽  
Comparative Analysis ◽  
Decision Analysis ◽  
Expert Assessment ◽  
Demographic Situation ◽  
Multi Criteria Decision Analysis ◽  
Economic Process ◽  
Methodological Approaches ◽  
Support Methods ◽  
Selection Of

In this study different methodological approaches are used and described by many features (indicators) of complex socio-economic process. Outcome of analysis has the most reliable and acceptable representation of the studied process specific to chosen case. In order to solve problems in this area (depending on the situation, case under consideration), methods from two groups are most often used: multidimensional comparative analysis and multi-criteria decision analysis. The first of these cases concern problems at the macro level (socio-economic development, demographic situation, population's living standards, etc.), in which the decisionmaker's participation is relatively small (eg the selection of diagnostic variables or expert assessment). The second of these groups include issues in which the decisionmaker's participation is significant which are subjective to the decisions taken and reflects his or her preferences. Among the decision support methods, one can also distinguish those that have both the characteristics of methods from the area of multidimensional comparative analysis and multi-criteria decision analysis. The article presents the combination of both trends exposing maximum possibilities of using selected methods used in the decision making by Polish schools. The general methodological assumptions, advantages of having approaches discussed (in relation to other known methods) as well as the applied aspects (exemplary applications) also presented.

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