scholarly journals ՀԱԿԱՄՈԼԱԽՈՏԱՅԻՆ ՆՈՐ ՏԵԽՆՈԼՈԳԻԱՅԻ ԿԻՐԱՌՄԱՆ ԱՐԴՅՈՒՆԱՎԵՏՈՒԹՅՈՒՆԸ ԱՐԱՐԱՏՅԱՆ ՀԱՐԹԱՎԱՅՐԻ ՈՌՈԳՄԱՆ ՋՐԱՆՑՔՆԵՐԻ ԵՎ ՑԱՄԱՔՈՒՐԴԱՀԱՎԱՔՈՐԴԱՅԻՆ ՀԱՄԱԿԱՐԳԵՐՈՒՄ

2021 ◽  
pp. 47-51
Author(s):  
A. G. Aharonyan ◽  
S. M. Sargsyan ◽  
B. A. Julhakyan ◽  
E. S. Muradyan
Keyword(s):  
Irrigation Water ◽  
New Technology ◽  
Irrigation Canals ◽  
Irrigation Systems ◽  
Water Losses ◽  
Drainage Systems ◽  
Technology Application

In 2018-2020 a new technology against the harmful flora of the lower Hrazdan and Artashat irrigation canals and collector-drainage systems at the Ararat valley was explored, scientifically justified and recommended for implementation. Physiologically active anti-weed preparations have been applied. In the irrigation systems, where cane is also widespread, Arsenal New and Uragan Forte have been used, while in the over-moistened collector- drainages Uragan Forte and in the cane-free areas Epic (Sado) and Anchor 85 have been used. In the result of new technology application the irrigation water losses are reduced and the proliferation of weeds and field dodder towards the land user’s fields is prevented.

Methodology for determining water losses from irrigation canals

2020 ◽  
pp. 16-18
Author(s):  
Elena Makarycheva
Keyword(s):  
Filtration Rate ◽  
Darcy Law ◽  
Filtration Flow ◽  
Irrigation Canals ◽  
Power Functions ◽  
Two Phase ◽  
Water Losses ◽  
Irrigation Channels ◽  
Unsteady Filtration ◽  
S Curve

The aim of the article is to develop a method for calculating water losses from irrigation channels in determining the permeability of rock in the zone of filtration flow on the basis of the law of infiltration A.N. Kostyakov using the results of studies of free filtration from pits and foundation pits in loess loams. Pressure movement of water in irrigation canals is subject to the laws of two-phase flow, in which – in contrast to the Darcy law for the zone of saturation plays an important role, the volume and its change in time. The filtration rate (VF) increases with increasing rock moisture (θ) along the S-curve, while the pressure gradient (I = dh/dz) decreases. The dependences of these parameters on the pressure are represented by power functions, and their product CDP = VFI does not change in time and can serve as a characteristic of the filtration flow under the channel. When installing paired piezometers near the water chore line in the channel and determining the graph I(t) by the value of the twophase flow constant CDP, it is possible to calculate the filtration rate at a number of times and the water losses during unsteady filtration. Water losses from the channels at equilibrium humidity increases with increasing head according to the formula A.N. Kostyakova, in which the water permeability of rocks is characterized by a steady filtration rate at a head of 1.0 m, and the gradient is the function of pressure. The application of the proposed method of calculating losses in the design of irrigation systems will increase the reliability of the justification of the volume of anti-filtration measures and the forecast of the groundwater level.

Selling their Best for Little: The Riddle of Ecuador's Failed Attempt to Assist Communal Farmers

2004 ◽  
pp. 123-142
Author(s):  
María José Castillo ◽  
Richard Beilock
Keyword(s):  
Development Strategies ◽  
Irrigation Canals ◽  
Irrigation Systems ◽  
Access To Credit ◽  
Reservation Prices ◽  
Failed Attempt ◽  
Santa Elena

In the 1980s, Ecuador began an expensive project providing primary irrigation canals to the Santa Elena Peninsula. The intended beneficiaries were the region's communal farmers. Instead, virtually all irrigable lands have been sold to large farmers and land speculators, usually at exceedingly low prices. While political and economic abuses explain some of these sales, introduction into a communal setting of an innovation which improved returns to capital relative to labor made land divestitures almost inevitable. With effectively no access to credit, communal farmers had little ability to invest in secondary irrigation systems. Moreover, because users of irrigable lands did not fully control communal sales decisions, as these lands became attractive to others, dispossession risks rose. The net result was that reservation prices for holding these lands fell among communal farmers at the same time of increased demands for these assets by those outside the comunas. Implications for development strategies are also discussed.    

Accounting Information Systems in Public Sector towards Blockchain Technology Application: The Role of Accountants’ Emotional Intelligence in the Digital Age

2021 ◽  
Vol 12 (1) ◽  
pp. 73-94
Author(s):  
Pham Quang Huy ◽  
Vu Kien Phuc
Keyword(s):  
Emotional Intelligence ◽  
Public Sector ◽  
New Technology ◽  
Accounting Information ◽  
Accounting Information System ◽  
Accounting Information Systems ◽  
Technology Application ◽  
Public Sector Organization ◽  
Blockchain Technology ◽  
The Impact

Abstract This research ferreted out to inspect the interconnection between emotional intelligence (EI), Blockchain technology application (BLO) and the effectiveness of Accounting information system (AIS). Survey-based data obtained from 412 respondents were applied to validate the model hypotheses. Building on the statistical analysis with the support of SPSS 25.0 and SMART- PLS (partial least squares) 3.2.8 software package, the model results inferred the impact of EI on BLO. Besides, the outputs of the study accentuated on the importance of BLO on the effectiveness of AIS. These significant additions will optimistically inspire other scholars to carry on exploring the relationship between EI and BLO in enhancing the effectiveness of AIS in research settings as well as in explaining the results. On the other hand, taking these results into consideration could promote much better solutions for issues relevant to EI and new technology application among public sector organization (PSO) in term of increasing the performance of AIS.

scholarly journals Innovative Extension Methods in the U.S. to Promote Irrigation Water Management

2020 ◽  
Vol 63 (5) ◽  
pp. 1549-1558
Author(s):  
Daran R. Rudnick ◽  
Matt Stockton ◽  
Saleh Taghvaeian ◽  
Jason Warren ◽  
Michael D. Dukes ◽  
...  
Keyword(s):  
Water Management ◽  
Experiential Learning ◽  
Best Management Practices ◽  
Irrigation Water ◽  
Management Practices ◽  
New Technology ◽  
List Type ◽  
Extension Programs ◽  
Irrigation Water Management ◽  
Primary Means

HIGHLIGHTSUniversity extension has been playing a larger role, serving a larger number of irrigated farms.Extension programs in irrigation water management (IWM) have been transitioning away from lectures and field tours as the primary means of knowledge transfer.New IWM programs focus on experiential learning, development of practitioner networks, and industry participation.Abstract. Promotion and adoption of irrigation water management (IWM) technology, tools, and best management practices are important as water availability concerns are addressed. Traditional extension programs have relied on lecture presentations, field tours, fact sheets, and on-station demonstrations to promote IWM practices and tools. However, these platforms tend not to provide the experience and opportunity for growers to identify and become comfortable with innovative solutions, such as new technology. To address these challenges and to appeal to an ever-changing client base, innovative and locally relevant extension and outreach programs have been devised to engage and educate growers. This article describes some of these programs that extend beyond previous traditional programs to connect growers with IWM. Keywords: Demonstrations, Experiential learning, Grower competition, Outreach, Practitioner networks.

Downhole Heating Technology – New Solution for Paraffinic Wells

2021 ◽  
Author(s):  
Mihaela Vlaicu ◽  
Vasile Marius Nae ◽  
Patrick Christian Buerssner ◽  
Stefan Liviu Firu ◽  
Natalya Logashova
Keyword(s):  
Technology Implementation ◽  
Online Monitoring ◽  
New Technology ◽  
Internal Diameter ◽  
Technology Application ◽  
Production Wells ◽  
The Difference ◽  
Wax Crystallization ◽  
Heating Technology ◽  
Production Losses

Abstract Paraffin represents one of the main case of failures and production losses which facing the entire oil industry. Prevention of paraffin deposition on the subsurface/surface equipment can be achieved by keeping the paraffin dissolved in crude oil or minimizing the adhesion or aggregation process of wax crystals. The paraffin problems which occur, conduct to gradual reduction of the tubular and pipelines internal diameter, restriction or valves blockages, and reduce the equipment capacity until the production is stop. Problems due to paraffin deposition varies and is different according with each commercial field, sometime the difference is from a well to well which producing from the same reservoir with different consistency. How we shall proceed? Before or after paraffin is field on the equipment? How could be avoid the future paraffin deposition? How long the selected method is proper for well ? The decision represents a combination based on oil's chemical & physical characteristics, well's behavior, method selected for prevention or elimination and combined with economic analysis and field experience. The paraffin inhibition applying is a common practice in OMV Petrom, which cover majority of the production wells. For the special wells, which the paraffin inhibition didn't provided satisfying results (multiple intervention due to paraffin deposition) was selected the Down Hole Heating technology (DHH) which was successfully tested in our company since 2014 thanks according with the yearly New Technology Program. The operating principle consists in heating the fluid volume from tubing using the heating cable which can be installed inside tubing, for NF and ESP wells or outside tubing for SRP or PCP wells. The cable is designed and located at the interval of wax crystallization appearance and heats the fluid to the temperature higher than the wax crystallization point (WAT). Since then, the DHH technology had an upward course, proven by high run life (highest value 2500 days / average 813 days) of the technology at the total 47 wells equipped, until this moment. Based on the successful results, recorded of 64% of old production wells equipped, it was decided to apply the technology at first completion of the new wells (36%), thus ensuring the protection of the new equipment. The paper offers an overview of DHH technology implementation, achievements, benefits and online monitoring of technology implementation starting with 2014 until today. The total impact shown a decreasing of no.of failures with 73,8%, the cost of intervention with 76,5%. The production losses decreased only with 5%, which certifies the fact that the technology helping production maintaining during the exploitation in comparison with production losses due paraffin issues recorded at wells without equipped with DHH technology. During 6 years of down hole heating technology application were developed candidate selection decision tree, monitoring the electrical efficiency, using the adaptability capacity of the technology from one well to another and integrate the temperature parameters in online monitoring system as part of digitalization concept of OMV Petrom, aspects which will be present in this article.

scholarly journals Water savings potentials of irrigation systems: global simulation of processes and linkages

2015 ◽  
Vol 19 (7) ◽  
pp. 3073-3091 ◽  
Author(s):  
J. Jägermeyr ◽  
D. Gerten ◽  
J. Heinke ◽  
S. Schaphoff ◽  
M. Kummu ◽  
...  
Keyword(s):  
Water Consumption ◽  
Irrigation Water ◽  
Crop Yields ◽  
Water Productivity ◽  
Irrigation Efficiency ◽  
Sub Saharan Africa ◽  
Water Withdrawal ◽  
Indus Basin ◽  
Irrigation Systems ◽  
Regional Patterns

Abstract. Global agricultural production is heavily sustained by irrigation, but irrigation system efficiencies are often surprisingly low. However, our knowledge of irrigation efficiencies is mostly confined to rough indicative estimates for countries or regions that do not account for spatiotemporal heterogeneity due to climate and other biophysical dependencies. To allow for refined estimates of global agricultural water use, and of water saving and water productivity potentials constrained by biophysical processes and also non-trivial downstream effects, we incorporated a process-based representation of the three major irrigation systems (surface, sprinkler, and drip) into a bio- and agrosphere model, LPJmL. Based on this enhanced model we provide a gridded world map of irrigation efficiencies that are calculated in direct linkage to differences in system types, crop types, climatic and hydrologic conditions, and overall crop management. We find pronounced regional patterns in beneficial irrigation efficiency (a refined irrigation efficiency indicator accounting for crop-productive water consumption only), due to differences in these features, with the lowest values (< 30 %) in south Asia and sub-Saharan Africa and the highest values (> 60 %) in Europe and North America. We arrive at an estimate of global irrigation water withdrawal of 2469 km3 (2004–2009 average); irrigation water consumption is calculated to be 1257 km3, of which 608 km3 are non-beneficially consumed, i.e., lost through evaporation, interception, and conveyance. Replacing surface systems by sprinkler or drip systems could, on average across the world's river basins, reduce the non-beneficial consumption at river basin level by 54 and 76 %, respectively, while maintaining the current level of crop yields. Accordingly, crop water productivity would increase by 9 and 15 %, respectively, and by much more in specific regions such as in the Indus basin. This study significantly advances the global quantification of irrigation systems while providing a framework for assessing potential future transitions in these systems. In this paper, presented opportunities associated with irrigation improvements are significant and suggest that they should be considered an important means on the way to sustainable food security.

scholarly journals REDUCING SURFACE IRRIGATION WATER LOSSES IN THE NILE DELTA

2013 ◽  
Vol 30 (3) ◽  
pp. 723-744
Author(s):  
M. A. El-Adl ◽  
M. M. Ibrahim ◽  
W. H. Abo El Hassan ◽  
H. M. Abd El-Baki
Keyword(s):  
Irrigation Water ◽  
Nile Delta ◽  
Surface Irrigation ◽  
Water Losses

In-Situ Steam Generation A New Technology Application for Heavy Oil Production

2016 ◽  
Author(s):  
Ayman R. Al-Nakhli ◽  
Luai A. Sukkar ◽  
James Arukhe ◽  
Abddulrahman Mulhem ◽  
Abdelaziz Mohannad ◽  
...  
Keyword(s):  
Heavy Oil ◽  
New Technology ◽  
Oil Production ◽  
Steam Generation ◽  
Technology Application

Parenteral medications at Role 1: do doctors in the British Army require improved training and experience?

2021 ◽  
pp. bmjmilitary-2021-001841
Author(s):  
Luke John Turner ◽  
A J Martin-Bates
Keyword(s):  
Improve Patient Safety ◽  
New Technology ◽  
Prehospital Emergency Care ◽  
Routine Practice ◽  
British Army ◽  
Clinical Placements ◽  
Technology Application ◽  
E Learning ◽  
Prehospital Emergency ◽  
Short Courses

Role 1 doctors in the British Army work predominantly in primary healthcare, but also provide prehospital emergency care and administer potent parenteral medications in the field. Role 1 doctors have theoretical training in the use of these medications on short courses but then have little refresher training and use them infrequently in their routine practice, introducing the risk of skill fade. This may lead to higher rates of medication errors in an environment where the consequences may be significant. This article explores the current training of Role 1 doctors, the threat of skill fade and how the safety of drug administration can be improved. This includes recommendations for the development of training competencies, bespoke courses and clinical placements, e-learning and the use of new technology. Application of these recommendations has the potential to improve patient safety and the confidence of doctors in the use of parenteral analgesia.

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