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The present paper analyzes - from the point of view of the energy consumption - a residential building in Romania, of usual construction, in order to fit it into the energy certification grid for heating [1]. The study was conducted for 8 thermal insulation variants with a thickness between 5 and 40 cm, each in 3 ventilation cases, in a total of 24 cases [2]. In order to determine the energy performance of the building, the CIMPSPAT expert calculation program was used [9], with the high-precision numerical method ...

The article deals with of a hydrogen pressure vessel suitable for high pressure of approximately 75 MPa. One of the goals is to design a vessel from materials whose strength will meet mechanical requirements a calculated in both analytical and numerical ways. Another objective is the simulation of the design the pressure vessel with regard to safety and weight requirements.

The paper presents a method for calculating the amount of thermal energy which is required for heating buildings, by enlarged indicators: area, storeys, material of walls, the number of people in the building and the specifics of its operation. On the basis of analysis of results of energy audit conducted in 2012-2016 for municipal institutions in the Belgorod region, a statistical analysis was carried out and dependencies were obtained to determine the geometric characteristics of buildings needed for thermal eng...

The possibility of manufacturing compact accelerometer based on prefabricated elements has been shown. Since most of the sensitive element designs at the lowest cost possible to produce at different ranges of sensitivity, so accelerometer design will be flexible in terms of wide range measuring of linear accelerations. Paper describes an original method of calibrating an autonomous unit of accelerometers. Without the use of precision rotary tables, centrifuges, and independent of the vibration reason, it is possib...

In this paper, a method of calibration of the levelling rod Carl Zeiss Jena No. 55822 was proposed. Within a method procedures we follow the requirement of the International Standard ISO / IEC 17025: 2005 and all necessary observations were performed in the Metrological Laboratory of Institute of Geodesy and Geoinformatics, Faculty of Civil Engineering, University of Belgrade. In the process of the calibration, we used a laser interferometer Hewlett Packard HP 5528 and specially adapted auxiliary equipment for pla...

Acid mine drainage waters around the Buchim Mine were challenge for researchers and Buchim company itself, but of highest interest it was for the environmentalists. In several phases Buchim Mine was solving the problem of pollution around the mine, whhen definitely this environmental problem was solved with the construction of the copper leaching facility. Large quantity of material deposited at the Buchim Mine waste dump of around 130 Mt today represents source of drainage copper solutions that are captured by pi...

Oil spills are the main cause of pollution with crude oil. Contamination with crude oil affects the environment (soil underground and surfaces, groundwater and water surface, air quality), plants, and health of animals and humans. Soil pollution with crude oil implies contamination with Polychlorinated Biphenyls, Polycyclic Aromatic Hydrocarbons, Monocyclic Aromatic Hydrocarbons and different heavy metals. The contaminated soil investigated in the framework of the present work was collected from a bioremediation p...

Related to assuring the sustainability of our human society the technical field is playing an important role, beside the environmental and socio-economic field. Taking into account the technical field in connection with the social one, special attention has to be paid to the field of cartography. This is becoming more relevant than ever regarding assuring the sustainable development on a regional level because of the need of land property clarifications. A lot of progress has been made in the last years in the fie...

The aim of this article is to demonstrate the effectiveness of employing case study analysis in English in order to educate future oil and gas engineers on environmental accountability. The case study will comprise of the activity of the company Beyond Petroleum (BP) and its response to the Gulf of Mexico oil spill of 2010. The research methodology includes: analysis of literature on environmental ethics, the case study and ways of teaching it; study of the educational requirements for oil and gas engineers. Exper...

At European level, with the evolution of European policies appeared inquiries locally to standard indicators, allowing some degree of comparison between different cities and towns, as a complement to indicators of local specifically related to the problems of each locality and which differs from one place to another, from one country to another EU. Thus, it has been adopted a set of European Common Indicators (ECI). Short and medium-term effects of air pollution harms human health and harm ecosystems and economy. ...

The main objectives of each of cities from Romania are sustainable development, energy efficiency, use of renewable energy and ensuring a clean and healthy environment for citizens in a modern city, attractive, prosperous and a high standard of living. The climate changes, increasingly present every day in the realities of city, mainly caused by human factor, obliges us to a new approach and orientation responsible for the future of our decisions in order to rational and efficient use of resources, especially in o...

Melanism is found in many animal species. This phenomenon is caused by a large amount of melanin pigment and causes an abnormal black or dark brown colour of the outer covers. Melanistic individuals are usually quite rare in nature. However, there are a number of examples indicating that melanistic colouring in animals can be adaptive under certain conditions and be supported by natural selection. These examples include the phenomenon of industrial melanism, described in the birch moth Biston betularia, as well as...

The Vrancea area, is known as a zone with intense and persistent crustal and intermediate seismic activity. The intermediate depth seismicity is concentrated in a high-velocity volume, an almost vertical body in fact a sinking lithosphere not completely detached, in the depth range from about 60 to 200 km. The epicentral zone is situated in an area of about 40 пїЅ 84 km2. The present tectonic of the Vrancea area is a result of a former subduction of oceanic lithosphere, followed by a continental collision and slab...

The paper presents the research on the modification lightweight cement composites with organic fillers by fly ash and anionic bitumen emulsion addition. Organic fillers used in composites were: common reed (fraction 2/10 and 10/20 mm) and conifer sawdust (fraction 0/2 mm). The reed Phragmites australis is a notably common plant in Poland that grows on waterlogged lands. This material is renewable, ecological, and while vegetation absorbs carbon dioxide. To determine the influence of two factors on compositesпїЅ pr...

The abundances of invasive plant species in the vegetation have negative impacts on the integrity, structure and function of autochthonous ecosystems. Invasive species act as stressors for plant communities and change their species compositions. In the Czech Republic, Ceratophyllum demersum is a species that may represent a risk of invasiveness, particularly in shallow types of water bodies. It is autochthonous is all continents, but it is primarily centred into warmer parts of the mild climate of the northern hem...

We live in the interglacial period that is causing warming effect on the EarthпїЅs climate reflected in water scarcity. Water is an essential substance in agricultural production. Therefor appropriate management is necessary to achieve sustainability. Material flow analysis (MFA) provides an overview of the system by linking the anthroposphere with the environment, and can highlight environmental or resource issue problems. Thus MFA can be used as a tool of material management. We applied partial MFA for quantifyi...

The present paper deals with the study of fluid and thermal characteristics of the metal foam with an open cell structure for use in solar thermal applications. The study of selected parameters was performed using CFD tools based on finite volume method calculation in software Ansys Fluent. Presented simulation was carried out on two types of metal foam elements with a density of pores of 10 and 20 PPI, which were designed and modeled by the authors using CAD tools. The basis of a model formed tetrakaidecahedron s...

This paper presents the results of a multidisciplinary literature review of issues related to Circular Economy, waste management, recycling, eco-innovation, decision-supporting and environmental management that help to identify the key expectations, opportunities and problems related to decisions supporting waste management under the Circular Economy concept. The research findings enable identification of the areas of waste management based on the Circular Economy concept and the functions of the information syste...

In recent years, the input of antibiotics into soils has sharply increased. The environmental behavior of antibiotics is not well known and the precise environmental risk assessment is not practical. Long-term studies have shown the efficiency of the diagnostics and monitoring of soils with biochemical methods, particularly with the help of the indices of soil enzymatic activity. We studied the impact antibiotics (benzylpenicillin, tilosin and nystatin) at different concentrations (100, 500 mg/kg) on hydrolase (ph...

Aim of this paper is to provide the overview of ecological friendly mechanical engineering through design solution in the field of material handling. There can be achieved a significant reducing of energy consumption with advantage of maintenance simplicity by decreasing level of the automation and the design complexity. Model situation is dealing with change of the material position orientation by using minimum of external forces and processes. The orientation change is induced by motion of the material along pre...

Human activity is manifested by continuous changes in space use. Adapting the space to suit ones needs and expectations, human activity is changing physiognomy but also even more often the quality changes of the space. The article presents an attempt how to define the direction and intensity of these changes using developed indicators of environmental quality. The authors attempted to determine the change in the environmental value of the Polish municipalities, taking as input the land cover CLC database. The anal...

According to Polish law, the natural concentration of sulphur (II) compounds in groundwater higher than 1 mg/L can be a base to find them as a curative water. Sulphur (II) occurs in groundwater usually as hydrogen sulphur or bisulphide ion. Their concentrations and ratios can vary dependent on prevailing conditions. Very often water stays a long way from intake to the spas. What is more in health resorts curative waters could be mixed. These processes can influence on total concentration and forms of occurrence of...

Due to the growing importance of forest changes and water management as factors influencing hydro-sedimentary dynamics and hydrological services, the analysis of the forest пїЅ water links may prove to be relevant for creating joint and adequate management schemes for these ecosystems. The main goal of this paper is to investigate the possible influences upon the hydro-sedimentary dynamics in the upper basin of Jiu River (2540 km2), induced by the changes in forest cover between 2000 and 2012. The relationship bet...

Today, the need for resources is growing based on the replacement of forest areas by areas used for economic and agricultural activities. The present study means to identify the changes in land use cover and forest areas between the changes made by the economic activities and aridity indexes, characterized by high temperatures and low quantities of precipitations in Southwestern Romania. This region is affected by high temperatures and low precipitations in July and August, growing urban areas and necessity for ag...

The land subsidence caused by underground mining results in the transformation of water relations in the Silesian Upland, which is located in southern Poland. Detailed studies were conducted in 25 water bodies formed in subsidence basins located on the Silesian Upland. The purpose of the study was to determine the temporal and spatial variability of electrolytic conductivity of the limnic waters retained in the water bodies studied. As part of field work, 12 specific electrical conductivity measurements were condu...

This paper discusses the issue of changes in average transaction prices of undeveloped land and real properties designated for agricultural and forestry purposes in Poland. The studies cover the period starting from the accession of Poland into the European Union structures in 2004. Another aim of the study is also to present the differences between average transaction prices of undeveloped real properties designated in years 2009-2015 among others, residential land, industrial land, other building land, agricultu...

The direct field observations and processing the info-graphic support (satellite images, thematic maps, profiles, digital images of the area) led to the preparation of this paper and realization of the proposal rehabilitation measures of anthropogenic landforms generated by coal mining activities in Petrosani Basin. These are exemplified by analyzing the Petrila 2 East dump (the Eastern end of the Basin) and Campu lui Neag coal pit (in the Western end of the Basin). The landscape of Petrosani Basin is transformed ...

Ploiesti is one of the major cities of Romania, which is confronting potential occurrence of high-concentration ground-level ozone events, having in view its industrial activity concentrated mainly on oil refining, oil extraction equipment and machinery, metalworking facilities, chemicals production, etc. Mobile sources (traffic and public transport system) have also a significant contribution to total air pollutants concentrations. This study aimed to analyze the concentrations of ground-level ozone (O3) and arom...

The Bajerka Stream (16 km long), besides the Vistula River, is a tributary to the Gocza?kowice reservoir. It is the main reservoir of drinking water for 3.5 million residents of the Silesian agglomeration. It is an artificial reservoir, created after the construction of the dam on the Vistula River. The Bajerka stream takes its origin in the dig from the Vistula River and enters into the southern part of the Gocza?kowice reservoir. This is a semi-natural stream, which is used to supply the numerous fish ponds, and...

Landfilling, composting and incineration represent the most common processes used for the disposal of organic fraction of municipal solid waste (OFMSW). One of the methods that allow to limit the amount of stored biodegradable wastes is their biological transformation. In the European Union, composting is one of the most widely promoted methods of the biological processing of biodegradable waste. Composting of wastes consists on applying microbiological processes of transformation of the matter to obtain decomposi...

Due to their chemical, physical and mechanical properties, niobium (Nb) and tantalum (Ta) are strategically used in various technical applications. About 130 different minerals contain tantalum and niobium, of which only about 80 are found in economical deposits. The remainder contains Nb and Ta as impurities. The most commercialised source of Nb and Ta is a columbite-tantalite ore often referred to as coltan containing pyrochlorite. The Central African Mesoproterozoic Kibara belt in Katanga (Democratic Republic o...

Nowadays, an important objective for researchers is to find an alternative to build cheaper and greener, sustainable and also durable. To discover a material with better thermal and acoustic performances than conventional concrete by using natural and renewable components in its composition became also an obvious trend. The agriculture products, mainly those considered as waste in this field, fulfill all the above mentioned requirements, being also widely available and with higher thermal and acoustic properties t...

Due to its geographical location, in the atmosphere above Romania several types of aerosol particles can be present: continental, biomass burning, and mineral dust aerosols. The vast majority of industrial facilities are located near urban areas; therefore the exposure of the human population to high concentrations of particulate matter can be significant. Although local sources are the major contributor to the air pollution in Romania, the contribution of remote sources is often significant, both aloft and near t...

The properties of aluminum and its alloy make them to be the first choice as manufacturing materials for different equipments and accessories. The light weight, high strength and improved corrosion resistance recommend aluminum and its alloy to be used specially in transportation and construction industries. The native aluminum oxide film formed after exposure in air presents voids and cracks and the exposure aluminum parts to corrosive environments which lead to the degradation and reducing their lifetime. In ord...

An marinegastropod mollusk or whelk is well-known Rapana venosa with the common name the veined rapa whelk or Asian rapa whelk. It is a species of large predatory sea snail, in the family Muricidae, the rock shells. This large sea snail has become an invasive species in many different localities around the world. In the area of the Romanian seaside is also found Rapana venosa. Bivalvia is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged pa...

Rare earth element (REE) resources are nowadays of great interest because of their importance as raw materials for high technology manufacturing, being also significant as geochemical indicators. Various phosphate mineral bearing rare-earth elements (REE) have been observed in the DпїЅrico-BeirпїЅ gold-antimony district (North Portugal). Besides apatite, the more abundant phosphate, xenotime, monazite and florencite were identified by scanning electron microprobe (SEM). They are usually associated to Palaeozoic me...

Surface modified superparamagnetic iron oxide nanoparticles (SPIONs) are a kind of novel functional materials, which have been widely used in the various areas. The main requirements to magnetic nanoparticles for biomedical applications are the nontoxicity, biocompatibility and high-level accumulation in the target tissue or organ, chemical stability, simplicity and reproducibility of synthesis. The composition and characteristics of the SPION surface have a strong influence on their stability, distribution, and b...

Ocimum basilicum L. (Lamiaceae) is a spice plant frequently cultivated in Romania with application in food flavoring and preservation, pharmaceutical products and alternative medicine. The purpose of this study was to determine the chemical composition and antioxidant effectiveness of the essential oil of Ocimum basilicum grown in Romania. The basil inflorescences (fresh plant material) was used for the extraction of essential oil. The essential oil was isolated with a yield of 0.52% (v/m) by steam distillation. G...

Situated in the central part of the country, Chott El Jerid is the largest periodic lake in Tunisia. The depression is a flat plain lined with Holocene lacustrine sediments, which mostly developed in the form of alluvia and evaporites. Geochemical properties of sediments were tested using the following methods: FUS-ICP, TD-ICP, INAA, Cold Vapour FIMS. As concerns the basic composition, the following substances were identified (average levels): loss on ignition (LOI) пїЅ 24.27%, SiO2 пїЅ 21.46%, CaO пїЅ 20.54%, Na2...

The species Ambrosia artemisiifolia L. is a native of North America and was introduced in Europe, in botanical gardens, in the 17th-18th centuries [3, 6]. First alerts on the presence of Ambrosia artemisiifolia L. in Romania was registered in 1910 [11]. In the period 1960-1985 Ambrosia artemisiifolia L. was considered a ruderal species and was sporadically reported in Romania. The results of recent research show that Ambrosia artemisiifolia L. is in full expansion in Romania, as well as an increase in abundance, b...

The inorganic migration forms of trace elements in the lakes of Western Mongolia characterized by a high content of such trace elements as U (up to 3 mg/L), Li (up to 82), Br (up to 718), Al (up to 0.4) were calculated using HydroGeo software (Bukaty, 2002). All studied lakes have high concentration of total dissolved salinity (TDS) that ranges from 1 to 360 g/L and high pH values varies from 6.9 to 10.3. According to calculated results Br, Li, Rb, Na, K, Sr, Ca, and Mg in lake waters migrate predominantly in ioni...

In the present study, chemical speciation of heavy metals in bog water and peat deposits, collected from the territory of the Kokchetav mountain group, North Kazakhstan, is described. The purpose was to evaluate quantitatively migration, distribution, and redistribution of the elements by the example of the natural object as a basic tool for the study of geochemical cycles of elements. Studying of the chemical composition of bog and pore water has been carried out, their comparative characteristic was executed, me...

The present research is a part of the obtaining innovative medicine domain and is concerned with conceiving and developing new anti depressive medicines, endowed with a high therapeutically degree, low secondary effects and impact on the quality of life, through a research partnership. The impact of Borderline personality disorder (BPD) diseases, especially depression, is continuously growing and as a treatment, are used anorganic products based on lithium, such as lithium carbonate, lithium citrate or lithium oro...

Steam based-thermal methods for improving oil recovery mainly includes steam injection, steam-assisted gravity drainage (SAGD) and cyclic steam injection (CSS). One of main goal of these methods is to achieve in-situ upgrading of heavy and extra-heavy oil. The high content of high-molecular compounds like asphaltenes is the one of main problems that is need to be solved during the process of the upgrading of heavy oils. Therefore, studying changes in the structure and properties of asphaltenes induced by thermal t...

According Act No. 157/2009 Coll., on mining waste management, the Czech Geological Survey carried out a project of the Operational Programme Environment in 2010пїЅ2012. The project was entitled пїЅInvestigation of closed and abandoned mining waste facilities posing a serious threat to the environment or human healthпїЅ. The aim was to create an inventory of hazardous mining waste facilities and to develop a methodology for their assessment. In the Czech Republic, 300 potentially hazardous mining waste sites were i...

The article presents a classification of small watersheds in the Czech Republic in terms of potential hydrological response to a set of design precipitation time series. Watershed classes as well as precipitation time series were derived as a partial result of a three-year project aimed at the design of typical soil conservation measures and small water management structures. Design precipitation scenarios were derived in an analysis of both rain gauge and radar measurements taking into consideration the precipita...

Contemporary measurements of the bottom during hydrographic sounding use modern multibeam systems and precise positioning one. Determination of coordinates of acoustic wave's reflection points on the bottom is based on transformation coordination sets: connected with positioning system and echosounder's transduces(s) based on CoG - Center of Gravity and spatial orientation determined by MRU - Motion Reference Unit.Despite using mentioned devices (systems), in the geospatial data cloud there are incorrect points, w...

The aim of the study was the analysis of subfossil Cladocera community of the Kotovo lake (Kharbey lakes' system, Bolshezemelskaya tundra) and the qualitative rating of the changes in it and in the region of study. The relevance of the work is associated with the increasing interest to the study of the climate change on the example of the North intact territories, along with the insufficient knowledge of the biota of the area being studied. The predominance of some species, zoogeography and biotopic attachments of...

Last winter, with respect to the most recent ones, was marked by severe cold spells and uncommon accumulation and persistence of snow cover in the non-mountainous areas of the country in January. These weather events provoked an intense media interest and raised up the debate about global warming. Actually, what type was the winter season of 2016-2017 compared to the previous years пїЅ normal, severe or extreme? In the presented climate assessment, a set of indicative climatic characteristics is explored on the ba...

Global climate change has already had observable effects on the environment. The increasing impact of natural disasters over recent decades has been well documented. This paper explores the possibilities of architectural design to benefit human condition, which encompasses physical environment of a safe life during the climate change era and predicted disasters. The first part deals with the problem of natural disasters and hazards during the climate change era and as a results human beings reacting to them. The s...