Interconnection between the dynamics of natural conditions and populating of the Qarabag plain of Central Azerbaijan in the 4th millennium BC

Author(s):  
Khagani I. Almammadov ◽  
◽  
Elena N. Tagieva ◽  

Climatic changes that took place in the 4th millennium BC (the second half of the Atlantic period, 6–5 thousand years ago) as revealed with the palynological data from the settlements of the Qarabag (Karabakh) plain of Central Azerbaijan caused direct changes in the lifestyle and economic structure of the Leylatepe culture carriers. Three consecutive changes in humidity were recorded, each of which coincides with a certain type of settlements, differing in their topography, quality of the construction material used, area and density of settlement.

Author(s):  
Rukiye Tekin ◽  
Metin Kılıç

The contribution of universities to economic structure, social and physical insfrastructure, the quality of life and city, and the level of education cannot be regarded. Therefore, it should be provided that university campuses should be areas which reflect city image with their physical structures. In this regard, the effective administration, usage, and development of universities, and the coordination between the units of universities should also be provided. One of the most significant elements of this coordination and cooperation is on campus transportation. One of the main purposes of the thesis is to evaluate inner campus transportation which is the sub-unit of city transportation. Other purposes are to determine the reasons of the perception of the users in reference to their demographic features on campus transportation and the reasons of their preferences of a particular transportation option. A survey study has been conducted in order to measure inner campus transportation perceptions. In this regard, 1112 questionnaire forms have been analysed by the software programme of SPSS. Expression analysis of the reliability, frequency distribution and factors are obtained, and differences were identified by ANOVA and T-TEST analysis.


Author(s):  
Raveesha P ◽  
K. E. Prakash ◽  
B. T. Suresh Babu

The salt water mixes with fresh water and forms brackish water. The brackish water contains some quantity of salt, but not equal to sea water. Salinity determines the geographic distribution of the number of marshes found in estuary. Hence salinity is a very important environmental factor in estuary system. Sand is one major natural aggregate, required in construction industry mainly for the manufacture of concrete. The availability of good river sand is reduced due to salinity. The quality of sand available from estuarine regions is adversely affected due to this reason. It is the responsibility of engineers to check the quality of sand and its strength parameters before using it for any construction purpose. Presence of salt content in natural aggregates or manufactured aggregates is the cause for corrosion in steel. In this study the amount of salinity present in estuary sand was determined. Three different methods were used to determine the salinity in different seasonal variations. The sand sample collected nearer to the sea was found to be high in salinity in all methods.  It can be concluded that care should be taken before we use estuary sand as a construction material due to the presence of salinity.


2012 ◽  
Vol 18 (3) ◽  
pp. 121
Author(s):  
Surniati Chalid

Vocational schools (SMK) is a secondary education that preparesstudents primarily for working on a particular field. Diverse efforts made by SMKgraduates increased 8 Medan include improving the quality of education byreforming both the substance of the material and the provision of facilities andinfrastructure. However, the results have not been up, cermatan can be seen fromthe low competence of graduates, making it less able to play a role in meeting thedemands of the workplace. Assumed to be an indication of the quality of learning isstill performed during less effective, less efficient and unable to increase studentinterest. In order to achieve maximum learning outcomes is through theimprovement of learning strategies to utilize the educational facilities in accordancewith existing conditions, ie, by examining one of the subjects namely Constructiondressmaking pattern. Construction material pattern done with learning strategyapproach manipulated into two comparing results STAD cooperative learningstrategies and learning strategies expository and compare the results with thelearning characteristics of students with high and low interest in learning onlearning outcomes Pattern Construction.


Forests ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 975
Author(s):  
Antonio Copak ◽  
Vlatka Jirouš-Rajković ◽  
Nikola Španić ◽  
Josip Miklečić

Oriented strand board (OSB) is a commonly used structural wood-based panel for walls and roof siding, but recently the industry has become interested in OSB as a substrate for indoor and outdoor furniture. Particleboard is mainly used in furniture productions and has become popular as a construction material due to its numerous usage possibilities and inexpensive cost. Moisture is one of the most important factors affecting wood-based panel performance and the post-treatment conditions affected their affinity to water. When OSB and particleboard are used as substrates for coatings, their surface characteristics play an important role in determining the quality of the final product. Furthermore, roughness can significantly affect the interfacial phenomena such as adsorption, wetting, and adhesion which may have an impact on the coating performance. In this research particleboard and OSB panels were sanded, re-pressed and IR heated and the influence of surface treatments on hardness, roughness, wetting, water, and water vapour absorption was studied. Results showed that sanding improved the wetting of particleboard and OSB with water. Moreover, studied surface treatments increased water absorption and water penetration depth of OSB panels, and re-pressing had a positive effect on reducing the water vapour absorption of particleboard and OSB panels.


2019 ◽  
Vol 3 (1) ◽  
pp. 60-72
Author(s):  
Bijan Bidabad ◽  
Mahshid Sherafati ◽  
Rohollah Mohammadi

In this paper, a method is presented to combine financial data and financial statements for economic analysis, which consequently introduces a software application for determining the economic structure of a cement factory. This software converts nearly 300 items of raw data of a cement factory to almost 4 times more economic-analytic information. The software analyzes the quantity and quality of production activities in addition to the cost structure of the concerned cement factory. It provides more than 80 descriptive figures, which have been defined previously and are applied to illustrate the economic structure of the cement factory. The calculated tables and figures are able to guide decision makers of the cement factory with regard to inefficiencies, obstacles, and various problems in the factory. In the end, a set of policies for increasing production efficiency and reducing costs are expressed briefly, which can be considered as the primary plans to operationalize the analytical information of the software. It is worth to mention that the presented structure of the software has been designed for Abyek Cement Factory. However, it can be employed as a guiding project for other cement factories as well. In other words, the software can be rebuilt with consideration of their specific information by revising and adjusting the software structure to cover their specific features.


Author(s):  
Brian Huntley

Species’ distributions, population sizes, and community composition are affected, directly and indirectly, by climatic changes, leading to changes in location, extent, and/or quality of distributions, range fragmentation or coalescence, and temporal discontinuities in suitable conditions. Quaternary fossil records document these responses, emphasizing individualism of species’ responses and impermanence of communities. Recent observations document similar changes attributable to recent climatic changes, including rapid decreases and increases in ranges and/or populations. Both also document extinctions associated with rapid climatic changes. Modelling studies predict substantial changes in species’ distributions, population sizes, and communities in response to future climatic changes. Implicit assumptions that genetic variation enabling adaptation is ubiquitous throughout species’ ranges, or that gene flow may be sufficiently rapid to allow adaptation, may be invalid. Work is needed to investigate spatial structuring of adaptive genetic variation and rates of gene flow, and to develop new models. Without this, species extinction risks may be severely underestimated.


1995 ◽  
Vol 1995 ◽  
pp. 193-193
Author(s):  
V.E. Beattie ◽  
N. Walker ◽  
L.J. Farmer ◽  
I.A. Sneddont

Enriching the housing of growing pigs by creating an environment which is responsive can stimulate behaviour patterns similar to that of pigs in semi-natural conditions (Beattie 1994, Simonsen 1990). These changes in behaviour in conjunction with the absence of tail-biting and ear chewing in enriched environments (Beattie, Sneddon & Walker 1993) are indicators of improved welfare (Signoret 1983).This study investigated the effect of enrichment on welfare, production performance and eating quality of the resultant pork. Welfare was assessed using behavioural measures.


2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Samira Melki ◽  
Moncef Gueddari

The production of phosphoric acid by the Tunisian Chemical Group, in Sfax, Tunisia, led to the degradation of the groundwater quality of the Sfax-Agareb aquifer mainly by the phosphogypsum leachates infiltration. Spatiotemporal monitoring of the quality of groundwater was carried out by performing bimonthly sampling between October 2013 and October 2014. Samples culled in the current study were subject to physicochemical parameters measurements and analysis of the major elements, orthophosphates, fluorine, trace metals, and stable isotopes (18O, 2H). The obtained results show that the phosphogypsum leachates infiltration has a major effect on the downstream part of the aquifer, where the highest values of conductivity, SO42-, Ortho-P, and F-, and the lowest pH were recorded. In addition, these results indicated that phosphogypsum leachates contained much higher amount of Cr, Cd, Zn, Cu, Fe, and Al compared to the groundwater. Spatiotemporal variation of the conductivity and concentrations of major elements is linked to the phosphogypsum leachates infiltration as well as to a wide range of factors such as the natural conditions of feeding and the water residence time. Contents of O18 and 2H showed that the water of the Sfax-Agareb aquifer undergoes a large scale evaporation process originated from recent rainfall.


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