scholarly journals Affad 3.0/Cattle+. Field seasons 2017 and 2018 of the PalaeoAffad Project

2019 ◽  
pp. 239-250
Author(s):  
Marta Oypińska ◽  
Piotr Osypiński ◽  
Marek Chłodnicki ◽  
Michał Kuc ◽  
Paweł Wiktorowicz ◽  
...  
Keyword(s):  
Adaptation Strategies ◽  
Power Lines ◽  
Archaeological Sites ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Power Station ◽  
Archaeological Heritage ◽  
The Past ◽  
Asphalt Road ◽  
The One

The first Affad was the one we saw when the archaeological sites there were first investigated at the beginning of the century. The second Affad, which is the region that we have been exploring in the past 15 years, bore many signs of modern Sudanese culture encroaching upon the desert. In 2009, an asphalt road cut through the desert and shortly thereafter, the Debba bridge and power lines were constructed, the latter coming from a hydroelectric power station on the Fourth Cataract. Affad 3.0 is what the location looks like today—extensive industrial-scale farms on terraces too far away for traditional agriculture. The investment has already caused irreversible destruction to the archaeological heritage. Cattle+ in the title of this article refers to new data on large ruminants. The discovery of auroch remains and the Neolithic cattle data are both extremely important proxies for the adaptation strategies of people inhabiting the Southern Dongola Reach in prehistory.

scholarly journals Some Notes on Maintaining Authenticity in the Presentation of Archaeological Sites in Bulgaria

2020 ◽  
Author(s):  
Milena Kamenova ◽  
Lyudmil Vagalinski
Keyword(s):  
Positive Impact ◽  
Archaeological Site ◽  
Archaeological Sites ◽  
Archaeological Heritage ◽  
The Past ◽  
Current State ◽  
Role Of The State ◽  
The One ◽  
Scientific Value

We present the challenges facing Bulgarian experts in finding the balance between preserving the authenticity of archaeological structures and their context, and turning them into a comprehensible and attractive visitor site. Thanks to European funding over the past ten years, a number of projects have been implemented in Bulgaria for conservation, restoration, exhibition and public presentation of archaeological heritage, where the main aim is to achieve a complete visitor product. The economic and social effect, on the one hand, has a positive impact as an inspiration for archaeological research and the popularisation of this type of cultural heritage, but has led to a compromise of the scientific value at some sites. We note some examples to illustrate the combined role of experts, participants and stakeholders in their 'reading' and 'translating' the archaeology – seeking to generate interest, clarify and convey the experience of 'genius loci'. The role of the state in the management of archaeological heritage is examined through its different governmental levels and interaction. The requirements imposed by legislation and practice are also observed. First, the development of the archaeological heritage conservation system in Bulgaria will be briefly reviewed, its current state of the processes, its actors and the interactions between them, the positive and the negative aspects, and, in more detail, the problems we face in preserving authenticity while turning the archaeological site into an attractive one. Then we focus on our main topic; the authenticity and the attractiveness of archaeological sites in Bulgaria.

Porous-concrete pipe drainage of the earth dam of the Riga Hydroelectric Power Station

1974 ◽  
Vol 8 (10) ◽  
pp. 914-916
Author(s):  
I. S. Ronzhin ◽  
A. D. Osipov ◽  
V. Kh. Gol'tsman ◽  
A. B. Yumatov
Keyword(s):  
Earth Dam ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Power Station ◽  
Porous Concrete ◽  
The Earth ◽  
Concrete Pipe

scholarly journals The plant communities of classes Hydrochari-lemnetea Oberd. 1967 and Potametea tx. Et Prsg. 1942 of the Labudovo okno locality (Serbia)

2008 ◽  
pp. 101-107
Author(s):  
Dubravka Polic ◽  
Ruzica Igic ◽  
Slobodanka Stojanovic ◽  
Dejana Lazic
Keyword(s):  
Plant Communities ◽  
Hydroelectric Power Station ◽  
Left Bank ◽  
Hydroelectric Power ◽  
The South ◽  
Power Station ◽  
South Eastern ◽  
Dam Building

Labudovo okno locality (50 m-84 m elevation) is situated in the south-eastern part of the edge of the Pannonian Plains, resting along the left bank of the Danube between 1982 km and 1078 km. The investigated locality is the result of rise of the Danube level after dam building of the hydroelectric power station Djerdap I. The vegetation comprises aquatic associations of the classes Hydrochari-Lemnetea Oberd. 1967 and Potametea Tx. et Prsg. 1942. The class Hydrochari-Lemnetea Oberd. 1967 includes the following phytocoenoses: Lemno-Spirodeletum W. Koch 1954, Salvinio-Spirodeletum polyrrhizae Slavnic 1956, Lemno minoris-Azolletum filiculoides Br.-Bl. 1952, Ceratophylletum demersi (So? 27) Hild 1956. The class Potametea Tx. et Prsg. 1942 includes the associations Myriophyllo-Potametum So? 1934, Nympaeetum albo-luteae Nowinski 1928, Trapetum natantis M?lleret G?rs 1960.

scholarly journals Analysis of floodable areas of the Angara river

2020 ◽  
Vol 223 ◽  
pp. 03002
Author(s):  
Gachenko Andrey ◽  
Hmelnov Alexey
Keyword(s):  
Model Building ◽  
Hydroelectric Power Station ◽  
Application Software ◽  
Hydroelectric Power ◽  
Power Station ◽  
Terrain Model ◽  
Power Stations ◽  
Littoral Area ◽  
Bratsk Reservoir

In this work, the authors present a technology for riverside terrain model building that has been tested on a number of scientific projects to study the littoral area of tail race of the Irkutsk Hydroelectric Power Station and the Bratsk Reservoir. This model is used for forecasting changes in the reservoir shorelines associated with wastewater in the cascade of hydroelectric power stations. The technology described in the work was approved to solve a number of practical problems and showed its effectiveness. Specialized application software was developed and terrain data from various sources were used to specify and detail the end result.

scholarly journals History of buildingand operation of the Nizhny Tulom hydroelectric power plant on the Kola Peninsula.

2020 ◽  
Vol 11 (7-2020) ◽  
pp. 19-32
Author(s):  
Olga E. Konovalova ◽  
◽  
Nikolai M. Kuznetsov ◽  
Keyword(s):  
Hydroelectric Power Plant ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Power Station ◽  
Construction Time ◽  
Current State ◽  
Production And Consumption ◽  
Great Patriotic War ◽  
History Of ◽  
The Cost

The article tells the story of the creation of the Nizhne-Tulomskaya hydroelectric power station (HPP). The main energy parameters of the hydroelectric power station, the layoutof the main structures of the station, and archival photos of the construction time are given. Data on the production and consumption of electricity for own needs, the cost of 1 kW·h during the great Patriotic war are shown. It is told about the reconstruction and current state of the station.

scholarly journals Numerical hydrodynamic researches for justifying design of the Nizhny Novgorod low-head hydraulic system

2019 ◽  
pp. 3-3
Author(s):  
Anna Glotko ◽  
Vitalii Belikov ◽  
Natalia Borisova ◽  
Ekaterina Vasil`eva ◽  
Aleksey Rumjancev
Keyword(s):  
Numerical Methods ◽  
Hydraulic System ◽  
Problem Area ◽  
Low Flow ◽  
Hydroelectric Power Station ◽  
Two Dimensional ◽  
Hydroelectric Power ◽  
Flow Conditions ◽  
Power Station ◽  
Low Head

Introduction. A problem area of the Volga river between the Nizhny Novgorod hydroelectric power station and the city of Nizhny Novgorod has been surveyed, where unfavourable conditions for navigation, power generation, and safe living in the downstream are formed as a result of the landing level. The only solution to the problem is construction of a low-head hydraulic system (NNGU) that will reduce intensity of relief re-formations in the downstream of the Nizhny Novgorod hydraulic system and stop lowering of the bottom and level marks in this area. Purpose of this research is to study processes that occur upstream and downstream from the site of the facility to identify hazardous trends and develop practical solutions to minimize negative impacts; as well as a review of mathematical models conducted in this area for improving navigation conditions. Materials and methods. Materials of previous researches on this subject, pre-design engineering surveys and layout drawings of the designed hydraulic system are used. The researches have been performed with numerical methods using Stream 2D software package that is based on the two-dimensional differential equation Saint-Venant system. Options for low-flow conditions are considered, taking into account passing of the Nizhny Novgorod hydroelectric power station, as well as rare floods. Results. Plans for distribution of velocity modules and vectors are created, which show that construction of the low-pressure hydraulic system results in decrease in slopes and velocities of water in the problem area of the Volga-Kama cascade, as a result of which intensity of bottom deformations decreases. Rare flow passage demonstrated that difference in pools is insignificant, while, at the same time, flow of water along the left-bank floodplain passes more than believed before. Calculations of low-flow conditions demonstrated a number of deficiencies in the design, which are associated with insufficient throughput and uneven distribution of flow rates in the discharge area of the waterfront. Conclusion The results demonstrated a practical importance of using mathematical simulation with numerical methods in a two-dimensional formulation, which allow us to consider processes in more detailed manner and change the hydraulic system design in a timely manner.

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