scholarly journals POPULATIONS OF ARTEMIA CRUSTACEANS OF KARABASSKY FLOODS OF PRIBALKHASHYE

2021 ◽  
Vol 2021 (3) ◽  
pp. 47-54
Author(s):  
Zhanara Omirbekovna Mazhibaeva ◽  
Tynysbek Temirkhanovich Barakbayev ◽  
Gulmira Muhamedkalievna Shalgimbaeva ◽  
Kuanysh Baibulatovich Isbekov ◽  
Saule Zhangirovna Asylbekova ◽  
...  
Keyword(s):  
High Potential ◽  
Biological Parameters ◽  
Ecological Situation ◽  
Stages Of Development ◽  
Small Reservoirs ◽  
Very High

The article presents the analysis of biological parameters of parthenogenetics of Artemia crustaceans of the hypergaline reservoirs of Kazakhstan. In the lakes under study there are shown the changes of the total crustacean biomass decreasing from high-productive to low-productive. Most of the reservoirs with Artemia in Kazakhstan are characterized by the presence of Artemia parthenogenetic populations with the absence or extremely small presence of males. The aggregation of males in significant numbers may indicate the tension of the ecological situation in the reservoirs and the desire of the population to increase the survival and stability of the offspring. It has been stated that all age periods of crustacean maturation are found in the reservoirs. At the same time, the basis of Artemia populations in all studied lakes are the youngest stages - nauplius, which form 53-86% of the total number of Artemias. In lakes Artemia crustaceans are presented by bisexual parthenogenetic race, with all age stages of development during the summer - autumnal period of observations. The hydrochemical mode of hypergaline lakes of Karabassky floods is favorable for activity of Artemia Branchiopoda crustaceans. The size of crustacean biomass populations in Lake Balhash change on seasons ranging from low to very high. Lake No. 1 is highly productive in Artemias in the summer, and lake No. 2 - in the spring. Such difference in temporary aspect is caused by existence of various generations in the populations of the crustaceans on seasons. The data obtained prove the high potential of the studied small reservoirs of the Balkhash region in relation to autumn plankton cysts

scholarly journals Identification of Groundwater Potential Zones Using GIS and Multi-Criteria Decision-Making Techniques: A Case Study Upper Coruh River Basin (NE Turkey)

2021 ◽  
Vol 10 (6) ◽  
pp. 396
Author(s):  
Ümit Yıldırım
Keyword(s):  
Drainage Density ◽  
Groundwater Potential ◽  
High Potential ◽  
Groundwater Potential Zones ◽  
Topographic Wetness Index ◽  
Analytic Hierarchy ◽  
Soil Thickness ◽  
Çoruh River Basin ◽  
Basin Area ◽  
Very High

In this study, geographic information system (GIS)-based, analytic hierarchy process (AHP) techniques were used to identify groundwater potential zones to provide insight to decisionmakers and local authorities for present and future planning. Ten different geo-environmental factors, such as slope, topographic wetness index, geomorphology, drainage density, lithology, lineament density, rainfall, soil type, soil thickness, and land-use classes were selected as the decision criteria, and related GIS tools were used for creating, analysing and standardising the layers. The final groundwater potential zones map was delineated, using the weighted linear combination (WLC) aggregation method. The map was spatially classified into very high potential, high potential, moderate potential, low potential, and very low potential. The results showed that 21.5% of the basin area is characterised by high to very high groundwater potential. In comparison, the very low to low groundwater potential occupies 57.15%, and the moderate groundwater potential covers 21.4% of the basin area. Finally, the GWPZs map was investigated to validate the model, using discharges and depth to groundwater data related to 22 wells scattered over the basin. The validation results showed that GWPZs classes strongly overlap with the well discharges and groundwater depth located in the given area.

scholarly journals Application of Remote Sensing, GIS and Hydrogeophysics to Groundwater Exploration in Ogun State: A case study of OGD-Sparklight Estate

2019 ◽  
Vol 3 (2) ◽  
pp. 370-385
Author(s):  
E. E. Epuh ◽  
N. O. Jimoh ◽  
M. J. Orji ◽  
O. E. Daramola
Keyword(s):  
Remote Sensing ◽  
Groundwater Potential ◽  
High Potential ◽  
Analysis Tool ◽  
Potential Zone ◽  
Alluvial Deposits ◽  
Individual Parameter ◽  
Ogun State ◽  
Total Study Area ◽  
Very High

With the increase in population of Ogun state, the necessity to provide water to the populace has become a disturbing problem. In this study, a systematic approach to delineate the groundwater potential zones of the state was carried out using Remote Sensing, Geographic Information Systems (GIS) and Hydrogeophysics as a tool. Vertical Electrical Sounding (VES) observations were also carried out in OGD Sparklight Estate to validate the results obtained from the integrated remote sensing and GIS observation and also determine the aquifer depth and possible pollution. The various thematic maps such as: soil map, land use/Land, geological map, rainfall map, lineaments map were obtained from enhanced satellite imagery and Slope map was generated from Shuttle Radar Topographic Mission elevation model (SRTM DEM). These maps were overlaid in terms of weighed overlay method using Spatial Analysis tool in Arc GIS 10.4. During weighed overlay analysis, different ranks were given to each individual parameter of each thematic map and weights were assigned according to their influence. The groundwater potential map obtained from the study area showed that 47% of the total study area (Ogun state) lie within the “very high” potential zone, 15% of the area falls within the “high”, 30% lies within the of “moderate” zone, 5% lies within the “low “potential zone while “2% “ lies within the very low potential zone. The very high potential areas lie within the sedimentary zone in the southern part of the study area with high alluvial deposits, while the “very low” prospect zone lies majorly within the basement complex zone in the northern part of the study area. The boreholes susceptible to salt water intrusion were identified and the best drilling point with respect to depth were also determined.

scholarly journals مواقع خدمة السنة النبوية على شبكة الإنترنيت نشأتها وتطورها

2011 ◽  
Vol 6 (7) ◽  
Author(s):  
Yusuf Ismail
Keyword(s):  
The Internet ◽  
Stages Of Development ◽  
Contemporary World ◽  
High Concern ◽  
Very High

Throughout the centuries, Muslims have shown a very high concern on preserving the Prophetic traditions and spreading its teachings and thoughts. In doing so, they have taken all possible means available to them. In this contemporary world, the spread of knowledge is made more accessible through the internet which, since its invention, has become a powerful tool to disseminate knowledge. This study discusses the roles of the internet and its importance towards the dissemination of Prophetic traditions through the emergence of specialized websites on the matter. It also describes the stages of development and some of the best available examples of these websites that focus on the Prophetic traditions and its studies.  

Adjusting the energy gap and interface effect of titania nanosheets synergistically enhances the energy storage performance of PVDF based composites

2022 ◽  
Author(s):  
Congcong Zhu ◽  
Xiaoxu Liu ◽  
Yu Feng ◽  
Jialong Li ◽  
Yanpeng Li ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Gap ◽  
Dielectric Materials ◽  
High Potential ◽  
Interface Effect ◽  
Storage Performance ◽  
Very High

Polymeric dielectric materials have recently attracted much attention due to their very high potential for use as advanced energy storage capacitors. However, it is still challenging to improve the inherent...

Video-Analysis and Self-Assessment in Teaching Work

2017 ◽  
pp. 192-210
Author(s):  
Loredana Perla ◽  
Nunzia Schiavone
Keyword(s):  
Video Analysis ◽  
High Potential ◽  
Self Assessment ◽  
Preliminary Results ◽  
Video Research ◽  
Methodological Practice ◽  
Interdisciplinary Study ◽  
Very High

Video-research, which represents a multi-methodological practice and an interdisciplinary study area, responds to various knowledge problems created by the complexity of the didactic phenomena to be investigated, and proposes instruments and technologies that have a very high potential about phenomena description, reproduction and comprehension, not only for researchers but also for teachers themselves who are the protagonists of those phenomena. Starting by these preliminary remarks, this chapter will be focused on the introduction of the preliminary results of a video-research itinerary achieved by the DidaSco group (School Didactics) throughout a project itinerary that involved six infant, primary and secondary (first degree only) schools in Bari and its province, working on History didactics intermediary processes. In the meantime, in this chapter a particular attention will be paid to the introduction of a video analysis form which was realized by the authors.

Hybridization of SrTiO3 and strontium wolframates with very-high-potential photogenerated carriers for degrading the A-ring of tetracycline

2021 ◽  
pp. 151138
Author(s):  
Mingjie Zheng ◽  
Zhixing Chen ◽  
Yongkun Lun ◽  
Bin Liu ◽  
Wangjian Zhai ◽  
...  
Keyword(s):  
High Potential ◽  
Very High

The Russian Population in Times of Economic Difficulties: Limits of adaptability

2014 ◽  
pp. 140-150
Author(s):  
E. Gontmakher
Keyword(s):  
Economic Development ◽  
Social Situation ◽  
Radical Change ◽  
Point Of View ◽  
High Potential ◽  
Social Model ◽  
Russian Society ◽  
Economic Problems ◽  
The Social ◽  
Very High

The article analyzes the current tendencies of economic development of Russia from the point of view of their influence on the social situation of the population. It examines the main risks that could affect the deterioration of this situation and possible consequences of their realization. The conclusion is that the social model, which is characterized by very high potential adaptability and does not motivate people to move to nationwide open protests, continues to operate in Russia. Only elite groups of Russian society can become the source of radical change provoked by growing economic problems.

Development of a Piezoelectric Screwdriver for Recessless Screws

2005 ◽  
Vol 17 (3) ◽  
pp. 352-358
Author(s):  
Hiroshi Kawano ◽  
◽  
Hideyuki Ando
Keyword(s):  
Ease Of Use ◽  
High Potential ◽  
Tightening Torque ◽  
Joint Force ◽  
The Cross ◽  
Very High

Screw’s are widely used because of their ease of use and very high joint force. Screws can be tightened very easily using plus- or minus screwdrivers. However, the cross- or minus-shaped recess on the screwhead causes a lot of problems. First, screws can be too easily loosened by screwdrivers, which means it becomes very easy to dismantle parts that should not be dismantled. Second, the recess makes a machine less aesthetically pleasing. Third, many screwdrivers of different diameter must be available. Fourth, if the recess is damaged, it becomes difficult or impossible to tighten or loosen the screw. To solve these problems, we propose a recessless screw. Recessless screw provides ultimate tamper-resistance. The proposed screwdriver uses piezoelectric cells to tighten or loosen recessless screws. Piezoelectric cells vibrate ultrasonically, generating rotation and tightening torque. The principle of the proposed screwdriver is examined by experiments whose results show the high potential of the piezoelectric screwdriver.

Quantitative and Comparative Analysis of Slope Instability in Karaj-Chaloos Road (Karaj-Gachsar section) and the Under-Construction Highway of Tehran-North (Tehran-Soleghan section) Using Logistic Regression Method

2020 ◽  
Author(s):  
Keristineh Jananeh
Keyword(s):  
Logistic Regression ◽  
Regression Model ◽  
Logistic Regression Model ◽  
Regression Method ◽  
High Potential ◽  
Slope Instability ◽  
The Caspian Sea ◽  
Logistic Regression Method ◽  
Slope Instabilities ◽  
Very High

<p>The Karaj-Chaloos road and the Tehran-North highway are two routes that connect the capital Tehran with the southern shores of the Caspian Sea. This contribution aims to study slope instabilities along these roads (Karaj-Gachsar and Tehran-Soleghan sections, respectively) using logistic regression method. In this regard, 14 layers of effective factors were created in the GIS environment and then correlated with the existing instabilities and their density was calculated. Results obtained by applying logistic regression model showed that the most important factors affecting the slope instabilities in the Karaj-Gachsar road area are distance from river, climate and SPI, while those for the Tehran-Soleghan road area are distance from fault and road and climate. According to the prepared maps, the southern and middle parts of the Karaj-Gachsar road, as well as another part in the northwest of the study area have the highest potential for the occurrence of landslides, whereas in the Tehran-Soleghan road area, the middle and southern parts and a small section in the north of the area have the highest potential for landslide occurrence. 34.95% of the Karaj road area has medium to high potential for the occurrence of slope instabilities and 4.97% of this area has very high potential. It is while 27.14% of the Soleghan road area possesses medium to high potential for instabilities and 4.57% of it exhibits very high risk. By comparing these two areas, it is conceivable that areas with medium to high potential of slop instabilities in the Soleghan road area are less than those of the Karaj road area (27.24% and 34.95%, respectively). However, the percentage of instabilities occurred in the Soleghan road area is much higher (86.26%) than the Karaj road area (54.87%). Finally, it can be mentioned that the logistic regression model was effectively applicable for preparing the zonation of the instability occurrence probability along the slopes overlooking the studied roads. It can also be concluded that in addition to natural factors, the human-made factors and particularly unsystematic road construction can play an important role in the landslide occurrences on the slopes overlooking the roads and in order to reduce the relative risks and increase the stability of the slopes, it is necessary to avoid manipulating the ecosystem and changing the current land use as much as possible, along with policy making for constructions in accordance with geomorphological and geological features of the area.</p>

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