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The East European Platform (EEP) in Poland belonged to Baltica plate during Cambrian and Ordovician times. Baltica originated as a result of disintegration of supercontinent Pannotia, which occurred during Early Cambrian. Baltica included part of Poland and adjacent areas northeast of Teisseyre -Tornquist zone. This zone is associated with Teisseyre - Tornquist Line, which ran from Scania through Western Pomerania, central Poland to the Black Sea. The Baltica plate originally included also area south-west from thi...

Nowadays, Romanian rural area is facing many problems such as: the lack of infrastructure to support agricultural development, the lack of a program to develop rural tourism, the lack of interest of Romanian peasant towards keeping traditions and developing his vocation that was inherited over time, artificial industrialization in agricultural sector. All these led in time to the current situation which is faced nowadays - a low demographic percentage in the rural sector characterized by a majority of elderly peop...

Earthquakes represent a real threat in Romania. They can cause important damages, loss of lives, socio-economic as well as cultural losses. The National Institute for Earth Physics (NIEP) is the only governmental organization responsible for monitoring the seismic activity on RomaniaпїЅs territory. NIEP provides different kind of information minutes to hours after the occurrence of a significant earthquake in Romania: near realtime information (location, depth and magnitude), ground shaking parameters and maps wit...

Climate change caused by the accumulation of greenhouse gases of anthropogenic origin in the atmosphere is one of the most acute problems of our time. Over the past two decades governments of different countries and international environmental organizations combine their efforts for confronting global warming. At the same time, companies are faced with steadily increasing expectations of stakeholders that require clear, consistent and transparent information about greenhouse gas emissions. This determines the need...

The introduction of the Minister of HealthпїЅs Regulation of 20 April 2010 on the quality of water intended for consumption by people resulted in the duty of testing the condition of water delivered to a consumer. In effect, a change in water quality during its distribution was noticed in many sites. There are many causes of this phenomenon, e.g. water supply system building material, quality of water coming out of the treatment station, failures and processes taking place in the system, for this reason, it is ver...

The Permian sedimentary succession exposed in Sirinia Basin (South Carpathians, Romania) provides a record of mixed siliciclastic-volcanic rocks. The siliciclastic rocks are represented by conglomerate, sandstone and claystone, which are grouped into nine lithofacies (Gmm/mg, St, Sh, Sm, Sr, Fl, Fr, P) occur in a predictable order as repeated fining-upward cycles. Groups of associated facies are arranged into five distinct architectural elements (gravel channels, ribbon-channel, sandy channels, laminated sand shee...

The Rutbah formation is one of the most important reservoirs at the Saban field east of Syria, it can hold up to 40 % of the hydrocarbon volume at the area. The Rutbah formation sediments are belong to the early Cretaceous (late Neocomian age). The Rutbah formation sediments at the Saban field are subdivided according to the well logs accompanied with sedimentological data into two parts from down to top which are; the lower Rutbah and the upper Rutbah. The lower Rutbah forms a good quality reservoir with typical ...

Interfaces of rocks with different mechanical properties influence on seismic stress field appearing in rock mass during the earthquake. This influence may increase seismic load applied to underground objects located near the interface, so it should be taking into account in seismic analysis of the structures. For this aim the problem of elasticity theory about stress state of the ring supporting an opening in the half-plane, which is united with a half-plane of another material is considered. Lengths of seismic w...

The paper highlights the seismicity of the Strei-Hateg depressionary system. This system is situated in the western part of the Southern Carpathians, and consists of two intermountain, post orogenic basins, Hateg basin and Strei basin. These two basins are separated by a threshold. The seismicity is characterized by moderate magnitude with a maximum magnitude of 4 (Mw) (8 September 2013) and by the presences of the seismic sequences. In the area are known two seismic sequences, one in 2011 of 14 earthquakes of 2 t...

There are already numerous attempts to scientifically relate seismicity to a number of precursors in seismologically active areas. There are also attempts to identify phenomena that may trigger the seismic events, especially the high magnitude ones, such as active tectonics or the Sun пїЅ Earth пїЅ Moon gravitational interactions. When studying the ROMPLUS Earthquake Catalogue [1], the time variability of seismicity in the Vrancea zone, characterized by both crustal and intermediate depths earthquakes, the results...

The seismic investigation of buildings is in accordance with two important Romanian Codes, P130/1999 and the seismic design code P100-2013. Criteria for selecting buildings proposed to be seismic investigated/monitored are numerous: seismic zoning of the territory; data on structural system and types of existing structural systems, depending on the material pre and post-1940; the effect of vibration other than from the seismic vibration; location-site; seismic stations and sensors, sensors position/location in a b...

With the decrease of production in conventional oil and gas resources, increasing attention is turning toward nonconventional oil sources to relieve the pressure caused by the lack of conventional stocks. Heavy oil and natural bitumen as two of the alternative sources are perhaps the most readily available to meet short- and long-term needs. As is well known, the physical and chemical properties of heavy oil and natural bitumen are quite different from conventional oils. Major differences include low content of th...

The air traffic in the European Union and operation of individual airports, including service provisions, belong among the most unregulated industries. Free market economies result in keen airport competition, and especially those airports are affected that compete for customers of the same catchment area. Passengers prioritize airports not only because of the quality of the services offered and provided but passengersпїЅ priorities also reflect presentation strategies of airports, as well as their communication a...

There is an increased concern about the constantly mounting amounts of sewage sludge due to different factors, in particular population growth and urbanization. Therefore, besides common sewage sludge disposal, innovative solutions are required, such as by energy recovery. The present research aimed at evaluation of the energy potential of sewage sludge from a Romanian municipal wastewater treatment plant. A viable and sustainable solution for the removal of sludge is the "transfer" of this so-called waste, in pel...

The exploration of shale oil is still the actual problem in the Western Siberia. The Upper Jurassic Bazhenov bituminous strata are widespread here. The Bazhenov strata is perspective shale formation because it has the high quantity of organic carbon and considerable thickness. This region is the most interesting for exploration of shale oil. The object of research are located within the Koltogor-Urengoy paleorift and its fraiming structure. The reconstruction of the tectonic and thermal history of Bazhenov formati...

Authors examined particularities in shelf oil and gas production. Social-economic aspects have been revealed of consequences during underwater production and pipeline transportation of hydrocarbon crude. Volumes of losses from emergencies at pipelines and platforms were analyzed with differentiation of principal world shelf oil and gas production regions. Loss volumes were estimated for the North-Eastern European region with reference to components of hydrocarbon production and transportation systems. Methodical a...

In water bodies of the Upper Silesia and D?browa Basin region (Southern Poland), shore processes should be considered on a micro scale owing to the small area of these lentic water bodies, especially when compared to large bodies of water around the world. Intensive geomorphological changes manifest themselves as abrasional forms (e.g. cliffs, terraces), which are found in small numbers on the banks of reservoirs impounded by dams and are more numerous within flooded mineral workings. On the other hand, accumulati...

In Poland, beavers have colonised all types of valley landscapes пїЅ from late glacial coastal lowlands and lake districts in the north of the country to upland and mountainous ones in the south. Studies of geomorphological effects of their presence in valleys of small rivers in the Oder and Vistula River basins have confirmed the results of earlier observations conducted in forest zones of North America and Europe. In Polish territory, effects of the changes related to the beaversпїЅ activities have been studied ...

This paper is focused on the simulation using Matlab/Simulink software? of the Photovoltaic (PV) cell/module/array for a better understanding of the power generated under different atmospheric conditions (irradiance and temperature). One diode model and double diode model of a PV cell are also shown in this paper. The simulations could be performed considering both models, but here only the PV caracteristics for one diode model will be shown. The resulting model uses a friendly interface considering the Function B...

The ground serves as an ideal heat source for monovalent ground-coupled heat pump (GCHP) systems. This paper presents a working methodology and develops an analytical model for evaluation of the ground thermal conductivity and the borehole thermal resistance using a thermal response test (TRT). Additionally, this paper uses the Earth Energy Designer (EED) simulation program developed on the basis of the line-source model to calculate the fluid temperature for a case study of the ground heat exchanger according to ...

The article presents the results of research on basic parameters of screw-type device designed to lift off, mix, and re-suspend sediments which build up on the bottom of the oil tank. When crude oil is stored in tanks, invariably solid particles and heavy paraffin sediments are deposited. To prevent any sediment from building up on the bottom of the storage tank and to ensure all oil requirements are met, screw-type devices or propellers which are installed at the first horizontal ring of a tank are basically used...

The article presents the results of tests of self ignition high speed engines used in fishing boats and vessels. The reduction of specific fuel consumption and exhausts toxic emission was possible by implementing preliminary fuel treatment that takes place directly in the fuel injector. containing catalytic material. The reduction of the nitric oxides emission level in exhaust gases has been obtained by means of preliminary fuel chemical treatment which is based on the use of heterogeneous catalyst and spirally sh...

Sulphate precipitation from mine water as ettringite, Ca6Al2(SO4)3(OH)12пїЅ26H2O, is generally indicated to be implemented as a second treatment step, following the heavy metal precipitation or as a third step, after gypsum seeded crystallization. The whole process may be seen as complicated by the operators, which always prefer simpler flow sheets, with fewer steps and with lower investment cost, but this treatment process sequence is justified by sludge management depending on type and by the economic reasons re...

The aim of the article is to evaluate the Six Sigma method as a tool changing the way energy industry has been managed. It has been based on facts, data and results of statistical analysis. The methodпїЅs task is streamline and continuous development of new, increasingly sophisticated solutions of all processes in a company, particularly concerning the protection of the environment. The philosophy was found to act by a clear identification of a value for a customer as part of a long-term strategy regarding variabi...

The combination of wood-PVC was used for the first time at an outdoor fire test on a reduced scale. From a scientific point of view, there is a strong the need to repeat similar fire test with a combination of materials that occur in the interior of buildings. It opens the opportunity to confront theory with the results of similar tests carried out. The combination of traditional and modern materials in interiors of buildings occur very often. Both wooden and or wood-plastic composite materials are mainly used to ...

The analysis of naturally fractured reservoirs is very comprehensive because of their structure, which includes the matrix of high porosity and low permeability as well as fractures of low porosity and high permeability. The situation is more complex in gas-condensate reservoirs in which the condensate accumulates in the fractures, what prevents them to maintain their base role as the most permeable conduit for the hydrocarbon flow. One of the most successful process to enhance recovery from dual porosity reservoi...

The smart development is a quite new tendency introduced in regional and territorial planning focusing on innovations, effective use of resources and knowledge based economics. Therefore there is no methodology elaborated jet how to characterise the smart territorial development progress in municipalities on Latvia. The National Research Program EKO-SOC-LV is established to create knowledge base on sustainable development processes of the state and society, and to elaborate a theoretical justification for sustaina...

The brownfields regeneration is very expensive process however it has important socio-economic effects. Many brownfields were revitalized also in the Southeast Cohesion Region in the Czech Republic, which is selected as the studied area. The research sample contents data from 28 CBA projects located in this area. The aim of this paper is to evaluate contribution of socio-economic effects to total efficiency of these projects based on benefit-cost ratio (BCR). The paper also deals with the classification of brownfi...

The Lojane arsenic-antimony deposit with its former mine facilities, for a longer period, represents source of contamination with heavy and toxic metals into the air, water and soil. Remains of mine waste in Suvi Potok near the Vakcince village, open waste and concentrate storage pond from the Lojane Mine and storage of reagents and toxins near the Tabanovce village represent source of pollution with As, Sb, Hg, Tl, Pb, Mo, Mn etc., which directly threaten surface and ground water in the vicinity of Vaksince, Loja...

The article is devoted to solving the problems of the receving indicators of agricultural land, which is characterized not only by fertility, but other indicators, defining the status of agricultural land. Such indicators are indicators of the federal monitoring of lands that allow timely identification and application of methods of land management changes in economic activity, which enables you to optimize land use and sustainability of agricultural land. It is shown that one of the basic problems of land monitor...

This paper presents a possible alternative solution to cold a retail center located in Brasov, Romaine. Absorption machines using thermal energy are excellent alternatives to mechanical refrigeration.The proposed solution uses a single stage absorption systems working with LiBr-water. This solution uses the water as a refrigerant which has a null direct impact on the environment (ODP=0 and GWP=1).The proposed scheme is the result of experimental research conducted by a team from the Thermodynamics, Heat Transfer a...

The present paper represents a first for Romania as it aims to empirically analyze the 26 collision cases between military aircrafts and birds registered during 1967 пїЅ 1991. The paper is based solely on the observations made in the above-mentioned period by the Chief of the Meteorological Division within the Romanian Air Force Headquarters between 1990 and 1993 (PhD meteorological engineer and retired commander). This article completes various scientific and statistical studies in the field, which were missing i...

Leaking oil, diesel, gasoline and other dangerous substances transported in large amount mostly on roads and railways affect the soil, rivers and underground fresh water. The fast reaction is necessary in order to stop leaking and to protect the surrounding environment. There are usually no special sorbents at the place of accident, therefore improvised sorbent should be used. Some of natural sorbents are surprisingly effective. Improvised sorbents were experimentally deeply tested in order to find out their chemi...

This study focuses on the source potential distribution within the Menilite Beds (Oligocene) in the Central Carpathian Synclinorium (Silesian Nappe) in the eastern part of the Polish Outer Carpathians. This region of the Polish Carpathians is one of the oldest petroleum-producing regions in the world, where in several folds plenty of oil and gas fields were discovered. The Menilite series contain the best source rocks in the Carpathians: the Menilite Shales, in which the liptynite group with humic components is a ...

We analyze source spectra of 30 moderate earthquakes (M ? 4.0), occurred in Albania during the period 2009-2015, with the aim to estimate their dynamic source parameters. Using broadband seismic records (BB) of Albanian Seismological Network (ASN), along with those from other regional ones, data representative of local tectonics of Albania, are selected. To achieve the displacement source spectra S(f) of S-wave, we adopted the Brune ?-square model, after correcting for instrument response and path effects. Obtaine...

Carrion beetles of genus Thantophilus are an important part of the North Hemisphere ecosystems. They provide valuable ecosystem services by promoting nutrient cycling and biological control of pests. They also regularly occurs on human remains and some of them are established forensic bio-indicators as they could provide valuable information regarding time of death and possible body manipulation. Thanatophilus sinuatus is one of the most common species of necrophagous beetles in the Czech Republic and our goal was...

The Tourism Resort Praid is one of the most dynamic resorts in Harghita County, Romania. In 2006, the settlement was given the title of resort. Since 2006 the resort started an accelerated development and is being affected by a series of new and old geographic risk factors. To determine these risk factors we used the direct observation method, quantitative and qualitative analysis, GIS analysis and representation, and cartographic method. Among these risk factors we will enumerate some natural risk factors like ex...

This study is devoted to the investigation of zooplankton biodiversity and their adaptation to the short growing season of polygonal pond, located in the largest Arctic delta - the delta of the Lena River (Republic of Sakha (Yakutia), Russia). Samples were obtained within the Russian-German project "Expedition Lena" (August 2013, June-August 2014). Investigated polygonal pond with thickets of macrophytes shallow, well-oxygenated, weakly mineralized with low conductivity, slightly alkaline pH. The pond freezes in w...

The atmospheric sound waves with frequencies lower than 20Hz are named infrasound waves. Among the multitude of infrasonic signals that have been recorded and detected during time, some of them have been associated with different natural or anthropogenic sources and the source of many other remaining hidden and unknown. At the beginning of year 2013, a permanent infrasound monitoring system composed by a MB AZEL2007 microbarometer, the digitizer and the transmitting equipment, was installed by NIEP, at Mangalia, R...

This paper proposes a complementary reevaluation through appropriate numerical processing of geophysical measurements, namely electricity, which were intended for the sulfide metal ores research. Extracted data were processed both by digitizing profiles, and by extracting them from field notebooks. Using standardized methods, specifically by interpolating date, original maps were constructed. Subsequently, the results from the field work were processed by statistical and probabilistic methods in order to outline c...

In this study are presented and analyzed data resulted from monitoring of ions concentration: NO??, NO?? and PO?пїЅ? in surface waters from Bucharest during 2013 пїЅ 2016 period. The concentrations of these ions are an important indicator of the degree of eutrophication of lakes. The monitored surface waters are formed of 12 lakes rezulted by systematizing of Colentina River. The sources of pollution with nitrates and phosphates are coming from economic activities around lakes, from urban transport, and the initia...

Russia is one of the most important players in the Arctic Zone with significant economic, security and political interests on these territories. This is primarily because of significant natural resources, in particular oil and gas, in the Russian Arctic. The objective of this paper is to define the main prospects of strategic development of the Russian Arctic zone, and to offer socioecological approach to its development. Arctic has considerable strategic importance to the Russian economy. Strategic development of...

The paper examines the various developments regarding strategic management of raw materials on national, European and international levels. The problems linked to this subject are of increasing importance for the producing industry. Thus it is necessary to act quickly and pursue a sustainable raw material policy. The main purpose of this work is to analyze the possibility of fly ash utilization for the road construction and possible application in other industry branches with interest. The methodology used in the ...

The пїЅameli Formation extensively outcrops in Denizli-Mu?la and Antalya (SW Turkey). In this study, the stratigraphy and ostracod assemblages of the пїЅameli Formation was studied. The пїЅameli formation is first defined in the пїЅameli Basin (Denizli) which is one of the grabens formed in Pliocene. The пїЅameli Formation consists mainly of lacustrine sandstone, marl and claystone and shows prominent terrestrial sedimentary features. In the field, the formation was observed as two different facies: Facies 1: disp...

The active stress pattern in the Apuseni Mts area is investigated and studied in relation to the local seismicity and geology. Our analysis is based on several high quality and resolution data bases obtained recently in the context of national and international projects and which refers to digital seismograms recorded by dense networks, parametric earthquakes catalogues and catalogues of focal mechanisms. The reduced stress tensor has been obtained by formal inversion of 89 focal mechanisms solutions. The maximum ...

In constructing the marine pipelines, the concrete weight coated pipes are used to create a negative buoyancy coating and its protection from the external mechanical damages produced by icebergs, trawl nets, anchors, dropped objects. So far, no requirements have been formulated for the determination of the stress-strain state of the concrete weight coated pipes laid using the stinger (S-lay) system. The structural analysis carried out in accordance with the standard requirements does not account for the negative b...

Faults can act both as seal and as pathways for fluid migration and therefore correct evaluation of fault zone properties is one of key element for conventional hydrocarbon reservoir management. Nevertheless, the unconventional plays deformed by faults became increasingly in demand for petroleum industry. Lower Paleozoic sediments in central part of Baltic Basin are considered as potential unconventional shale gas system. Key TOC-rich intervals in the area of interest are Caradoc Sasino Formation and Lower Llandov...

The work is devoted to the investigation of the viscous properties of a nanostructured additive based on sevilene, as well as the evaluation of its structure by the method of IR Fourier spectroscopy on the Shimadzu IR Prestige-21 Fourier spectrometer. The structure of agglomerates of the additive is proposed, which consists of a core-nano-sized particle of aluminum oxide bound to polymers (sevilene) by associative bonds. In this case, a partial restructuring of vinyl acetate units occurs. The absorption band of 13...

The main aim of case study is to compare changes in landscape structure between the years 1958 - 2009 in territory of the old industrial city Krompachy in Middle SpiпїЅ in Slovakia. The assessment of the spatial structure the classes of the land cover has significance especially for the research of landscape especially from the aspect of the maintaining landscape ecological stability and the sustainable development as well as the landscape potential. Land cover reflects the physiognomy of landscape, utilisation of...

The present research aims at determining the influence of physical and mechanical properties of the soil (resistance to penetration) and of the liquid pollutant in case of soil cleaning and self-cleaning processes. Different forces operate on the water in the soil, and they permanently modify themselves depending on the quantity of water in the soil and its properties (texture, porosity, density). The leaching speed of liquid pollutant in the soil is a variable measure, for one and the same type of soil, and it de...