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Multicolored asian ladybird Harmonia axyridis Pall. is a well-known aphid predatory species, of Asian origin. The species is classified taxonomically, at present, in the tribe Coccinellini family Coccinellidae. The species is considerate bivoltine, but may submit up to 5 generations/ year. The main role of the species is its use in biological control. A negative impact on potential benefits that accompany this coccinellid would be predation insects native to the same family. Current status of invasive species is t...

The irregularity of rock joints in rocky terrains contributes considerably to better mechanical stability of these terrains. The assessment of the stage of surface irregularities (asperities) of jointed surfaces in rock massifs plays an important role when shear strength of rock joints are evaluated. For this purpose it is necessary to analyze morphology of surface reliefs of rock joints. The digital replicas of surface reliefs are ideal tools for such a morphology analysis. This paper describes a new method for d...

The manufacturing and processing of metals is connecting with large number of different types of wastes. One kind of these wastes are dusts and sludges which arise as a result of the melting processes or in the machining of castings. Flue dusts from melting processes are captured most often on filters, scrubbers or in Venturi scrubbers. Dust particles resulting from the machining of castings (grinding and blast cleaning) remain in the grinding rooms or they are sucked and collected on filters. Whereas these dusts ...

Biochar is a porous, carbon-rich material produced by heating of organic matter to temperatures between 300 °C and 1000 °C in an environment with limited or no oxygen. During the past decade, numerous articles focusing on the use of biochar have been published, but have shown inconsistent results. Reactions in the soil after the addition of biochar depend on the characteristics of biochar, soil, climate and soil-inhabiting organisms. However, due to high variability in the quality of biochar, its effects on soils ...

Issues of teaching C++ programming language at Moscow State University of Geodesy and Cartography (MIIGAiK) have been analyzed. Pedagogical experiments were conducted from 2009 till 2016. Modern course of C++ programming language for students? cartographers and geodesists has been developed. The training geodetic programs can be used both by teachers and students whose specializations are geodesy and mapping at lectures and practical sessions and also for home studies. The example of training program named "Collim...

Developing biocomposites materials is a part of the strategy of sustainable development in construction. This paper presents the advantages, the disadvantages and problems, still unclear, to achievement the biocomposites materials, HEMPCRETE type. The most important thing, highlighted by literature regarding the creation and use of this material type, is the extremely low impact with the CO2 pollution, which usually accompany technological manufacturing processes, putting in place and exploitation of construction ...

Environmental pollution with heavy metals is important by its effects on all the segments of the ecosystem: soil, water, air, plants, animals, and humans. Humans and animals contamination is achieved either by direct contact with polluting particles, or indirectly by consuming the contaminated vegetables. It is also known the human contamination by eating products obtained from animals bred in polluted areas. The effects of heavy metal pollution are well-known at the level of soil and superior organisms. Soils con...

The maritime territories play a significant environmental, economic, social, cultural and recreational role. It is therefore important to achieve a balanced, sustainable development to ensure equal opportunities for the population of all regions, bridging any gaps between the territories. Special attention is paid to developmental directions and opportunities of the maritime territories. The purpose of this research study is to identify the factors affecting development of the maritime territories of Latvia, perfo...

Construction development of forest-tundra areas shall take into account their peculiar characteristics: enhanced susceptibility of landscape components to man-made impact, presence of permafrost, and also insufficient exploration of environmental conditions. These factors make it essential to carry out a detailed investigation of natural and man-made conditions as a part of engineering and environmental surveys during environmental feasibility study of the projected construction in such areas. This work is dedicat...

The university campus is a special place for both staff and students. It is the object of many scientific studies. In this publication the author undertakes to study of efficiency of public transport within the university campus. The study includes determining the availability of the university buildings from public transport network. Base for research is spatial data obtained from student's measurements. The main research method was based on determining the availability of campus buildings on the basis of buffers...

In connection with the requirements of energy saving and reducing greenhouse gas emissions, the current construction is characterized by high levels of airtightness of the building envelope. On the other hand, high levels of airtightness can be the cause of poor indoor air quality due to inadequate ventilation. Energy savings and ensuring the quality of the indoor environment are two confronting requirements of the current construction. The airtightness can be defined as a resistance of the construction to infiltr...

The paper deals with issue of computation of the sunrays penetration through point cloud data with considering the geometrical and astronomical principles in calculating the Sun position relative to points of the objects on the Earth surface. Input data are represented by point cloud obtained by the method of terrestrial laser scanning and they express group of trees in the forest stand, where solar insolation is one of important parameters being studied in forest protection management systems. Currently used meth...

This paper is oriented in the supervision of of the major earth movements, particularly in storehouses of explosives, for a beter orientation and safety during their supervision in earth. In Kosovo we have started a supervision of storehouses of explosives by using a global system of positioning GPS. We have put this system in function in Independent Commission for Mines and Minerals (ICMM), which has facilitated and ensured an accurate monitoring if internal movements in some strategic objects for the needs of Ko...

Recently, the volume of scientific literature has grown rapidly raising an imminent question about its storage and organization. Many research papers are often available only through the websites of the relevant scientific journals. It is an essential problem when different classification codes are used in order to organize these papers or when specific categorization in a certain scientific field is missing. This leads to unnecessary complications in the researchers' aims who want to quickly and easily find liter...

The air is a mixture of different gases and particular matter, which make up for the earth?s atmosphere. They allow for the existence of all life on the earth. With the increase in population and the progress of development, more and more substance of natural origin and on general not occurring in the nature, which may affect harmfully on the environment, gets into the air. Dusts and gases, flowing in excess into the atmosphere, cause local and even global pollution. Since the beginning of 2017 all the time in Pol...

The new era of SAR exploitation started with the launch of Sentinel-1A and 1B satellites providing dual-polarized VV/VH imagery, free of charge, with unprecedented revisit interval of a few days over very large swaths. The research questions addressed in this paper are: how to process efficiently big set of multitemporal Sentinel-1 images in order to retrieve correctly classified agricultural crops for inventory purposes? How to reduce the amount of data and the redundancy of information resulting from very freque...

The paper presents an analysis of a waste heat volume that may be recovered in dual-pressure waste heat recovery systems (DPWHR) cooperating with the selected two-stroke marine diesel engine. The analysis covers four developed DPWHR systems (two of them generate saturated steam and the remaining two generate saturated and superheated steam). The heat in the exhaust gas and charge air is also included therein. The steam, generated in the DPWHR system, is employed to provide heating at a ship and to drive the turbog...

The article presents selected results obtained by using of electrical resistivity tomography method in searching of different, mostly anthropogenic objects at shallow depths. The anticipated depth of the object is up to 20m. These objects are relatively small with dimensions up to maximum in first meters in diameter. In terms of the shapes of these objects it is possible to define two groups. The first group consists mainly of the objects whose shape can be replaced by a vertical or horizontal cylinder. The second...

The article presents the materials of long-term research conducted from 2004, in the mouth area of the Northern Dvina River. The program of researches included determination of concentrations of mercury in the water, covering about 150 km of the river length. We also analyzed such parameters of water as pH, Eh, oxygen content, salinity. A long observation period allowed us to trace the peculiarities of the changes of mercury content in water, which was the aim of the present work. Previously the authors determined...

The results of Chembursky lake, Vityazevsky, Kiziltashsky and Bugazsky coastal salt lakes expeditionary research are observed, aimed to examine the allocation of methane and sulfur sulfide (total sulfide) according to the vertical cut of bottom sediments (sulfidic muds), and also the value of Eh and pH. pH and Eh values in the examined horizons of coastal salt lakes bottom sediments vary correspondingly in the limits from 7.33?8.06 and -198?-2.5 mV, in the Chembursky lake sediments ? 7.47?7.64 ? -78?+46 mV. CH4 an...

The disconnection of inductive circuits from an alternating voltage source is accompanied by the occurrence of over-voltages, which often are hazardous for the components of the electrical circuit. In this paper is described a modern method for studying transitory regimes which occur at the disconnection of inductive circuits, based on a data acquisition system type NI-USB 6003. The software used is LabView and it is also developed by National Instruments, the developer of the data acquisition system. The paper ap...

The paper presents the investigation results of rock mass state change regularities taking into account geological and mining factors by complex methods. The authors consider complexing of results from the cluster analysis of seismic events with numerical modelling of stress state in the rock mass on a case study of the Yukspor deposit (the Khibiny rock massif, Murmansk region, Russia). The time and dimensional analysis of the Yukspor deposit?s seismic regime was performed. The cluster groups of seismic events wer...

Twenty years after finishing the dam ?unovo on river Danube about 15 km beneath Bratislava were after regular controls gradually exclude from system some observation boreholes. There were realised new investigation boreholes. The main reason of these boreholes was verification of the soil characteristics in depth where the periodical changing of water in Danube and in reservoir had negative influence on the permeability characteristics. One of the most important factors of safety is filtration stability of granula...

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 ...

The energy recuperation systems are being increasingly used in modern non-hybrid cars. It allows to recover part of the energy without mounting an additional electric engines and a set of batteries with high capacity in the vehicle. Recuperation of energy, however, involves a number of limitations resulting from: traffic conditions, vehicle construction parameters, electrical energy demand in the car and from the construction of the energy recovery system. In this article presented the results of road tests in a r...

In connection with finding - out of a question about probable feeding of deposits by hydrocarbons, acting from the basement, the results of integrated geologicalgeochemical research of the dynamics of variation of chemical and geochemical parameters of oils and bitumen from the rocks of sedimentary cover and basement in the zones of probable inflow of hydrocarbons at the central areas of the Romashkino oil field are presented in this work. Also the results of researches on comparative studying of changes in organi...

Importance of cadastral maps in today's society cannot be doubted. Maps are a key component of cadastral documentation ? they provide geometric and positional determination of the property and are the basis for reconstruction ? setting-out of a lot boundary. They increase the trustworthiness of cadastral data. The fact that cadastral maps are in vector form, does not guarantee their accuracy and quality. The user must be extremely cautious when a digital image of the map is interpreted. Article is knowledge base n...

The research in dairy cows in mountain aria demonstrated that the arithmetic average of the mammary repose period is about 62 days. This value is very close to the desired value of cow breeders. Very high value of the coefficient of variation (57.28%) shows that we are dealing with an average resulting from compensation. This theory is supported by very large difference of about 13 days between arithmetic and probable average of dry period. Probable average is 49 days to 311 registered cows, preceded by a shorter ...

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...

A conveyor belt in regular operation is negatively influenced by a number of factors. This negative influence is the result of coming in direct contact with the transported material, which frequently causes serious damage and reduces belt lifetime. The scale and type of this damage depends on many factors, such as a belt?s physical and mechanical properties and its design. The properties of the transported material and the design of the feed point are also of considerable importance [4]. When the damage is caused ...

Since the beginning of widespread use of plastic its consumption and production has been constantly increasing. As a result of human activity part of waste ends up in our environment and is deposited in each of the elements of the biosphere. These impurities can be in the form of large elements, small particles fragmented to macroscopic level (pellets, facial scrub grains) and the microparticles visible under a microscope. Particularly harmful for the environment are microplastic particles, which can be deposited ...

The effectiveness of using different beneficiation techniques of low-grade iron ore deposits of Assen iron ore mine in Thabazimbi, South Africa has been investigated. The sample received was confirmed to be low grade haematitic iron ore containing (39.18% Fe and 40.29% Si) both lumps and fines. The most abundant gangue present was silica. The different beneficiation methods such as shaking table, drum magnetic separation and reverse flotation were compared on the basis of which one yields a better grade that can b...

Historical buildings require advanced measurement tools and techniques to be documented in detail and precisely because of their different natural characteristics, different dimensions, and complex architectural constructions. In this study, precise measurements were made with TotalStation, and photographs of historical works were taken from different angles. The obtained raw data were evaluated in a computer environment and a 3D model was obtained. It has been observed that the use of this system, which has start...

In the paper there is the analysis of the possibility of the replacement of onerous methods of surface treatment before adhesive bonding. In ecology approach adhesive bonding is not preferred techniques of joying parts. The joints are no separable, but nonetheless have wide range of usage. The adhesive bonding has many assets, like low mass of the joining elements (less material), possibility of joint of different materials, lack of rivets or screws (less weight). But typical preparatory operations in adhesive bon...

There are a lot of traces of wars or military activities throughout the Czech Republic. You can find fortifications from Roman times to the Cold War. In 2009, a big project started in the Czech Republic ? aerial laser scanning of the whole national territory. It was finished in 2013; since this year there has been a possibility to use very precise digital terrain models (DTM), a new face of the landscape mainly in forested areas, derived from aerial laser scanners and INS instruments. For archaeology, the use of D...

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...

Trace elements (TE: Cu, Zn, Cd, Pb, Fe, Mn, Ni, Co, Ba, Zr, Sc) content in the components of the lake Kultuban (South Urals) and lake?s catchment ecosystem was studied. Trace element content was measured in samples of lake water, bottom sediments, shoots of reed Phragmites australis (Cav.) Trin. ex Steud., muscles of several fish species (Esox lucius, Carassius gibelio, Perca fluviatilis), samples of topsoil on catchment, above-ground phytomass, shoots of terrestrial plants Artemisia austriaca Jack., Thymus marsch...

For generalized inversion, non L2-norm inversions have been widely used in geophysical inversion to obtain sharp and blocky models. However, problems such as the boundary of anomaly body obtained by inversion is not clear enough and the recovered residual susceptibility value is far less than or greater than the true susceptibility generally exist. In this paper a new 3D magnetic inversion approach based on residual node susceptibility is proposed. The residual node susceptibility model comes from residual block s...

The growth in economy is reflected also in the rising demand for freight transportation. The freight railroad industry play an important role being a mainstay of transportation for basic industries. New projects are currently developed for increasing the capacity of transportation by rail from large coal and mineral basins to the places of consumption or within the processing plants. The combined heavy load and usage cycles imposes severe stresses on the components of the freight cars. To this purpose a comparativ...

The priorities of the state policy of the Russian Federation in the Arctic is determined primarily by the Strategy of development of the Arctic zone of the Russian Federation and national security for the period up to 2020, approved by the President of the Russian Federation. In the framework of the activities of the Russian State Commission on Arctic development a working group "Education and Science" under the leadership of the Ministry of Education and Science of the Russian Federation. This group had analyzed ...

Asphaltite derives from petroleum origin solid fossil fuel [1]. It contains valuable elements such as chromium, thallium molybdenum, uranium etc. Chromium and thallium are very important elements both environmental and health. Chromium has an important role in the metabolism. It keeps the blood sugar level in balance. It balances the level of cholesterol. Thallium and its compounds are toxic for humans even at low doses. Poisoning causes death or permanent nervous system disorders. The development of precise and e...

Fused Deposition Modeling (FDM) is one of the most used technology in the 3D printing field. There is many kind of 3D printers with different design and parameters, such work temperature, deposition speed and others. All of these parameters affect the final parts. Produced parts are made from different materials and therefore there are also different mechanical properties. So it depend what for the produced parts are designed, if there are just for design introducing or even for real use as conventional produced p...

Maize (Zea mays L.) is the most important cereal after wheat and rice grown widely throughout the world, playing a major role in human diet or as livestock fodder. Water and nitrogen are the most limiting factors for maize grain yield and it is important to evaluate the response of maize crop to irrigation associated to N fertilization in order to obtain high yields and to prevent nitrate pollution. In this context, it was designed an experiment with the main purpose to analyze the variability of yield potential a...

The introduction of the Minister of Health?s 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 very ...

FREEWAT Platform is a free open-source tool for water resource management created within the frame of HORIZON 2020 project FREE and open source software tools for WATer resource management, financed by the EU Commission. The project?s Consortium is constituted by partners from various water sectors from 10 EU countries, plus Turkey and Ukraine and large stakeholders? involvement is thought to guarantee results in its dissemination and exploitation. The FREEWAT platform is an integrated modelling environment for th...

The authors propose a method for automated processing of seismic data obtained in high-stress rock masses structured as hierarchy of blocks with a view to detecting seismically active zones and seismic event clusters within a mine field. The processing algorithm is developed based on the statistical theory of classification and cluster analysis. Suitable for zoning of seismic data, FOREL family algorithms include algorithms based on the idea of incorporating objects in the zones of their highest concentration into...

Urban transit system planning in large cities requires information about demands on passenger transfers. These demands are commonly represented as an origin-destination matrix (O-D matrix) that contains aggregated data of passenger turnover and traffic. Information, needed for these representations to be constructed, is usually collected using analytical models and natural surveys. Unfortunately, these methods do not provide necessary precision for high quality transport system management and are also quite expens...

The aim of the paper is to solve design of the automatic identification system via radiofrequency technology with respect to spatial analysis data acquisition. The compact system of automatic identification at railway defined by GS1 standards enables to monitor motion and operating status at the level of whole trains, wagons or even at the level of individual container or other load. If the acquired data are supplemented by coordinates of places, where they were obtained, those can be used for the spatial analysis...

Along Bistrita River in the Eastern Carpathians is produced each year freezeup ice jams. Depending on the hydro and weather conditions these breakup jams have a larger or smaller spreading. Periodical ice jams cause damage and noticeable loss of lives. The article examines the area between the tail of Mountain Spring Lake (Poiana Largului) and Dorna Arini which has a length of about 80 km. Jams and ice accumulations occur usually in the downstream section between Poiana Largului and Borca. It would be preferable f...

The recent development of remote sensing technologies and rapidly accumulating environmental data derived from geographic information systems (GIS) now provide information on the patterns of terrestrial environmental variation at global and continental scales. Moreover, the past decades, an extraordinary amount of work has been undertaken to map species distributions and use the collected information to identify suitable habitats. Remote sensing metrics have become an integral part of SDM studies and contribute th...