Search results for: unconventional gas resources - Bridge of Knowledge

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Search results for: unconventional gas resources

Search results for: unconventional gas resources

  • Journal of Unconventional Oil and Gas Resources

    Journals

    ISSN: 2213-3976

  • Wettability of shale rock as an indicator of fracturing fluid composition

    Shales have become one of the main unconventional gas resources in the world. However, physicochemical properties of rocks are still at the center of research. There have been conducted major researches in wettability of shales by fluids and advances in understanding and control of shale rock wettability. Also influence of interfacial phenomena on a production capacity of reservoirs have been made. The aim of this study is to find...

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  • Poland’s energy dependence - economic context

    Open Research Data
    open access

    Poland does not have vast resources of non-renewable energy and no nuclear power plant, therefore the issue of the energy dependence of the state, which affects the level of energy security of the country, is an extremely important factor. It depends on both the volume of imports of energy raw materials and the policy of diversification of sources of...

  • Janusz Cieśliński prof. dr hab. inż.

    He was born on April 15, 1954 in Slupsk. He graduated from the Faculty of Mechanical Engineering at Gdańsk University of Technology (1978). In 1986 he received the title of Doctor, in 1997 he obtained the title of Ph.D. with habilitation, and in 2006 he received the title of Professor. He worked as head of department and vice-dean for Education at the Faculty of Mechanical Engineering for two terms (2002-2008). His research interests...

  • Fuel, Oils and Greases, W, E, sem.01, zimowy 22/23

    e-Learning Courses

    Division and origin of fuels. Fossil energy resources in Poland and in the world. Production and structure of fuel consumption. Main directions of crude oil processing. Classification and physical properties of gaseous and liquid fuels - natural gas, gasoline, kerosene, diesel oil, heating oil. Classification and characteristic indicators of solid fuels - hard coal, lignite, peat. Fuel contaminants and methods of their removal....

  • Fuel, Oils and Greases, W, E, sem.03, zimowy 22/23

    e-Learning Courses
    • P. Bzura

    Division and origin of fuels. Fossil energy resources in Poland and in the world. Production and structure of fuel consumption. Main directions of crude oil processing. Classification and physical properties of gaseous and liquid fuels - natural gas, gasoline, kerosene, diesel oil, heating oil. Classification and characteristic indicators of solid fuels - hard coal, lignite, peat. Fuel contaminants and methods of their removal....

  • Wykorzystanie Web 2.0 oraz architektury informacji w pracy brokera informacji = TAKING ADVANTAGE OF WEB 2.0 AND THE INFORMATION ARCHITECTURE IN THE INFORMATION BROKER’S WORK

    Publication

    - Year 2011

    The development of information and communication technologies, dissemination of access as well as unlimited increase of publications result in the uncontrolled growth of knowledge resources. Looking up for the relevant information becomes increasingly difficult, especially when time plays a role. Such process requires vast knowledge, practical experience in obtaining and providing information and also analytical...

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  • Wielokryterialne Wspomaganie decyzji środowiskowych przy wydobywaniu węglowodorów z formacji łupkowych

    Publication
    • W. Treichel
    • T. Andrzej
    • J. Zaleska-Bartosz
    • N. Marek
    • P. Karol
    • G. Maria
    • A. Małachowska

    - Year 2017

    Poszukiwanie i eksploatacja gazu z formacji łupkowych wymaga zidentyfikowania i uwzględnienia wielu czynników i uwarunkowań geologiczno-górniczych, ekonomiczno-finansowych, prawnych oraz szeroko rozumianych aspektów przestrzenno-środowiskowych. Poruszane zagadnienia prowadzą do zidentyfikowania problemów decyzyjnych, które mogą pojawiać się przy eksploatacji gazu z łupków, a które wiążą się z intensywnym korzystaniem z zasobów...

  • Wykorzystanie Web 2.0 oraz architektury informacji w pracy brokera informacji.

    Publication

    - Year 2011

    The development of information and communication technologies, dissemination of access as well as unlimited increase of publications result in the uncontrolled growth of knowledge resources. Looking up for the relevant information becomes increasingly difficult, especially when time plays a role. Such process requires vast knowledge, practical experience in obtaining and providing information and also analytical skills that...

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  • Labour resources in Azerbeijan

    Publication

    - Year 2021

    The article aims to assess the changes of the Azerbaijani labour resources through deductive analysis of historical data and observation of changes in the structure of resources based on generally available macroeconomic data. Analysis shows that, during the period considered, the population of Azerbaijan increased, with a majority living in cities. Universal access to education enabled a growing group of Azerbaijanis to complete...

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  • Fundamentals of Steam and Gas Turbines OASIV

    e-Learning Courses
    • J. Głuch

    Application of turbines in industry and sea power plants. Basic thermodynamics and fluid flow mechanics in turbomachinery. Steam turbine power cycle and plants. Gas turbine power cycle and plants. Turbine blading systems operation.

  • Individual Resources and Intercultural Interactions

    Publication

    - Year 2017

    The work environment in multinational corporations (MNCs) is specific and demanding including intercultural interactions with co-workers and clients and using a foreign language. Some individual resources can help in dealing with these circumstances. Individual resources refer to personal dispositions, competencies and prior experiences. With regard to previous studies, a caravan of personal resources, namely Psychological Capital...

  • Carbon dioxide sequestration during shale gas recovery

    This paper presents literature on theoretical and practical aspects of gas production from shale using carbon dioxide fracturing. Development of technical and environmental aspects of carbon dioxide fracturing technologies is also considered. Patents applicable to carbon dioxide fracturing are reviewed. There were also conducted researches to evaluate possibility of carbon dioxide sequestration in shale gas reservoirs.

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  • A Novel Approach of Using Selected Unconventional Geodesic Methods of Estimation on VTS Areas

    Publication

    - MARINE GEODESY - Year 2019

    The Vessel Traffic Service (VTS) systems belong to the fundamental tools used in ensuring a high level of safety across sea basins with heavy traffic, where the presence of navigational hazards poses a great risk of collision or a ship running aground. In order to determine the mutual location of ships, VTS systems obtain information from different facilities, such as coastal radar stations, AIS, and vision systems. Fixing a ship’s...

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  • Superadditivity of two quantum information resources

    Publication

    - Science Advances - Year 2017

    Entanglement is one of the most puzzling features of quantum theory and a principal resource for quantum information processing. It is well known that in classical information theory, the addition of two classical information resources will not lead to any extra advantages. On the contrary, in quantum information, a spectacular phenomenon of the superadditivity of two quantum information resources emerges. It shows that quantum...

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  • Carbon dioxide fracturing technologies for shale gas recovery

    This paper presents literature survey on the theoretical and practical aspects of gas production from shale using carbon dioxide fracturing. Development of technical and environmental aspects of carbon dioxide fracturing technologies are also considered. Patents applicable to carbon dioxide fracturing are reviewed.

  • Water Resources Management 2022/2023

    e-Learning Courses
    • T. Kolerski
    • A. M. Mustafa

    Water Resources Management as defined for purpose of this course includes both water use and water excess management. The fundamental water resources engineering processes are the hydrologic processes and the hydraulic processes. The common threads that relate to the explanation of these processes are the fundamentals of fluid mechanics. The hydrologic processes include rainfall, evaporation, infiltration, rainfall-runoff and routing,...

  • Algorithmic Human Resources Management - Perspectives and Challenges

    Theoretical background: Technology – most notably processes of digitalisation, the use of artificial intelligence, machine learning, big data and prevalence of remote work due to pandemic – changes the way organizations manage human resources. One of the increasing trends is the use of so-called “algorithmic management”. It is notably different than previous e-HRM or HRIS (human resources information systems) applications, as it...

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  • Export diversification and dependence on natural resources

    Publication

    Low export diversification is a risk-augmenting factor for many countries dependent on natural resources. The literature tends to focus on the growth effects of resource dependence (‘resource curse’ debate) while not much is known on how it affects the variety of non-resource exports. To quantify this effect we decompose the relative Theil index using product-level export data from 160 countries over the time period 1996–2018....

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  • Labour resources in Kazakhstan and Uzbekistan - a comparative study

    Publication

    - Year 2022

    The aim of the paper is to show the transformation and comparison of labour resources in Kazakhstan and Uzbekistan using the following methods: deductive data analysis, observation of changes in the structure of resources based on publicly available macroeconomic data. During the two decades of the 21st century, both countries experienced population growth which translated into an increased number of persons of working age. In...

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  • Water Resources and Industry

    Journals

    ISSN: 2212-3717

  • On Accuracy Modeling of Gas Turbine Cycles by the In-house COM-GAS Code

    Publication

    - Year 2016

    In this paper, a comparison of accuracy modeling of gas turbine cycles between the basic (classical) model and the in-house COM-GAS code has been presented. The basic model uses a semi-perfect gas and well known projecting assumption. On the other hand, the computational flow mechanics (CFM) basis on a real gas by using thermodynamic tables. The thermodynamic analysis of thermal cycles, simply gas cycle GT8C and gas turbine cycle...

  • Conventional and unconventional yeasts able to grow on rapeseed meal hydrolysates

    Publication
    • D. Dygas
    • P. Janicka
    • J. Berłowska
    • D. Kręgiel

    - BIORESOURCES - Year 2022

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  • Hydrodynamic aspects of unconventional propulsor design for small fast ships.

    Publication

    - Year 2004

    Artykuł przedstawia przegląd niekonwencjonalnych pędników dla małych, szybkich okrętów. Przegląd ten obejmuje pędniki strugowodne, śruby superkawitacyjne, śruby częściowo zanurzone oraz śruby kawitujące. Charakterystyczne cechy hydrodynamiczne tych pędników wymieniono i przedyskutowano, ze wskazaniem wad i zalet. Pokrótce przedstawiono dostępne metody projektowania i przedyskutowano ich oczekiwaną dokładność. Przegląd zilustrowano...

  • Water Resources Management - Winter Semester 2021-2022

    e-Learning Courses
    • T. Kolerski
    • A. M. Mustafa

    Water Resources Management as defined for purpose of this course includes both water use and water excess management. The fundamental water resources engineering processes are the hydrologic processes and the hydraulic processes. The common threads that relate to the explanation of these processes are the fundamentals of fluid mechanics. The hydrologic processes include rainfall, evaporation, infiltration, rainfall-runoff and routing,...

  • Cascading transitions toward unconventional charge density wave states in the quasi-two-dimensional monophosphate tungsten bronze P4W16O56

    Publication
    • E. Duverger-Nédellec
    • A. Pautrat
    • K. Kolincio
    • L. Hervé
    • O. Pérez

    - IUCrJ - Year 2020

    Single crystals of the m = 8 member of the low-dimensional monophosphate tungsten bronzes (PO2)4(WO3)2m family were grown by chemical vapour transport technique and the high crystalline quality obtained allowed a reinvestigation of the physical and structural properties. Resistivity measurements revealed three anomalies at TC1 = 258 K, TC2 = 245 K and TC3 = 140 K, never observed until now. Parallel X-ray diffraction investigations...

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  • Synteza, struktura chemiczna i właściwości bezizocyjanianowych poliuretanów otrzymywanych z wykorzystaniem CO2 oraz surowców pochodzenia naturalnego.

    Publication

    - Year 2021

    Z uwagi na wciąż rosnącą świadomość proekologiczną, politykę zrównoważonego rozwoju, a także nurt zielonej chemii wiodącym trendem w przemyśle tworzyw sztucznych jest poszukiwanie alternatywnych metod otrzymywania materiałów polimerowych. Komercyjnie poliuretany otrzymywane są w wyniku reakcji poliaddycji di- lub poliizocyjanianów z poliolami i małocząsteczkowymi przedłużaczami łańcucha. Z uwagi na niekorzystne właściwości diizocyjanianów,...

  • Renewable Resources for Polyurethanes and Polyurethane Composites: A Review

    Each year, more than two million tons of polyurethane is produced in the EU by reacting isocyanates with polyols made from fossil fuel. In addition, there are appreciable quantities of petroleum based functional additives applied in the industry nowadays for both polyols and polyurethane materials. It is therefore of key importance to develop sustainable economically viable polyols with enhanced functionalities, and thereby reducing...

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  • Productivity effects of trade in natural resources—comparison with mechanisms of technological specialisation

    Publication

    This paper compares two alternative growth paths, assessing the effects on productivity of specialisation in natural resources (NR) and in technologically advanced products. The empirical analysis exploits product-level export data for 109 developing and 51 developed economies over the period 1996–2018. We document two distinct types of specialisation, based on exports either of natural resources or of technological products, and...

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  • Unconventional and user-friendly sampling techniques of semi-volatile organic compounds present in an indoor environment: An approach to human exposure assessment

    The commonly applied solutions used to assess the potential risk of human exposure to semi-volatile organic compounds (SVOCs) are based on the investigation of biological samples collected in an invasive or non-invasive manner. For SVOCs, which are typically introduced to humans through the respiratory system, dermal adsorption, or digestive system, sampling solutions generally used in the indoor environments are classified as...

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  • Modelling of network schedule including priority of selected technical resources

    The paper presents a method of network planning CPM – Critical Path Method. The author compares models of optimal solutions to design deadlines for individual works, taking various leading technical resources such as is labor and a tower crane into account.

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  • Low and high energy explosive materials used in shale gas recovery

    Nowadays the explosives are widely used in many areas of life, including industry and mining. A wide range of explosive materials is used in the petroleum industry - from low to high explosives. Recently, as the unconventional oil and gas production became possible, explosives are also found to be used in perforators during the pre-completion stage of the fracturing process. This paper presents literature on theoretical and practical...

  • Environmental impact and industrial development of biorenewable resources for polyurethanes

    Polyurethanes are among the most developed types of polymers. They are produced from the three primary components, i.e., polyols, low-molecular-weight glycols used as chain extenders, and diisocyanates. Until recently, all these substrates have been obtained via petrochemical processes. A decrease in petroleum-based resources and new ecological trends in chemistry, chemical technology, and materials engineering have generated increasing...

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  • More Just Measure of Fairness for Sharing Network Resources

    Publication

    - Year 2016

    A more just measure of resource distribution in computer networks is proposed. Classic functions evaluate fairness only “on average”. The proposed new fairness score function ensures that no node is left without resources while on average everything looks good. It is compared with well-known and widely adopted function proposed by Jain, Chiu and Hawe and another one recently proposed fairness function by Chen and Zhang. The function...

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  • Environmental aspects of shale gas recovery in Baltic Basin

    Factors limiting shale gas exploration and exploitation in Pomorskie Voivodeship are presented. In particular, ground and surface water availability and land/community impact is discussed. Production from unconventional reservoirs requires proper well completion through hydraulic fracturing, hence voluminous streams of water are needed – in total 8000 to 20000 m3 per 1000 m of borehole length. 17 major groundwater basins were characterized....

  • Mobile devices and computing cloud resources allocation for interactive applications

    Using mobile devices such as smartphones or iPads for various interactive applications is currently very common. In the case of complex applications, e.g. chess games, the capabilities of these devices are insufficient to run the application in real time. One of the solutions is to use cloud computing. However, there is an optimization problem of mobile device and cloud resources allocation. An iterative heuristic algorithm for...

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  • Heterogeneity of national accounting systems, world-class universities and financial resources: What are the links?

    Publication

    - Journal of Informetrics - Year 2024

    This study investigates the relationship between university financial resources, applied accounting systems, and the place of a university in the Shanghai Ranking. We find a strong relationship between the financial resources under the control of a world-class university and the position of that university in the highest tier of the global ranking. We propose a model (available online) to predict a university’s tier in the ranking...

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  • Changes in the structure of Armenia’s labour resources between 1993 and 2020

    Publication

    The article characterises the structure of Armenia’s labour resources in the period between1993 and 2020. It aims to assess the changes on the Armenian labour market by means of a deductive analysis of historical data and observation of changes in the structure of resources based on generally available macroeconomic data. The authors evaluate these processes against the background of demographic and economic changes, by presenting...

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  • International Journal of Unconventional Computing

    Journals

    ISSN: 1548-7199 , eISSN: 1548-7202

  • Efficiency of gas mixtures detection by resistive gas sensors

    Publication

    - Year 2014

    Resistive gas sensors are very popular and are commonly used to detect various gases and their mixtures. Theeir main disadvantage is very limited selectivity. Practical use of gas sensors in environenmental applications requires determination of concentration of a few mixed gases at the same time. We would like to present recent results of gas detection improvement by utilizing a single gas sensor and additional measurements to...

  • Household Ability of Expenditures on Electricity and Energy Resources in the Countries That Joined the EU after 2004

    Publication

    The purpose of the following article is to present the situation of the energy market from a household perspective between 2010 and 2020 in selected EU countries (the group of member states which joined EU after 2004). The selected countries when joining the EU had similar economic indicators and to some extent were similar in other macro-economic situations (personal income, unemployment rate, GDP level and annual growth). This...

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  • EFFICIENCY OF GAS MIXTURES DETECTION BY RESISTIVE GAS SENSORS

    Publication

    - Year 2014

    Resistive gas sensors are very popular and are commonly used to detect various gases and their mixtures. Their main disadvantage is very limited selectivity. Practical use of gas sensors in environmental applications (e.g., in sewage systems to protect workers, in air conditioning systems to monitor atmosphere quality) requires determination of concentration of a few mixed gases at the same time. We would like to present recent...

  • Literature and other resources

    e-Learning Courses
    • A. M. Dąbrowicz-Tlałka
    • M. Chodnicki
    • M. Zaremba
    • K. Flisikowski
    • M. Budzyński
    • I. Mokwa-Tarnowska

  • Steam and Gas Turbines Constuction_ seminar/project

    e-Learning Courses
    • A. Butterweck
    • J. Głuch

  • Selectivity of amperometric gas sensors in multicomponent gas mixtures

    Publication

    In recent years smog and poor air quality became a growing environmental problem. There is a need to continuously monitor the quality of air. The lack of selectivity is one of the most important problems limiting the use of gas sensors for this purpose. In this study, a selectivity of the six amperometric gas sensors is being investigated. Calibration of sensors has been performed in order to find a correlation between concentration...

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  • Gas sampling system for matrix of semiconductor gas sensors

    Semiconductor gas sensors are popular commercial sensors applied in numerous gas detection systems. They are reliable, small, rugged and inexpensive. However, there are a few problem limiting the wider use of such sensors. Semiconductor gas sensor usually exhibits a low selectivity, low repeatability, drift of response, strong temperature and moisture influence on sensor properties. Sample flow rate is one of the parameters that...

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  • Educational resources as digital products

    Publication

    W artykule zaproponowano podejście do tworzenia i dystrybucji materiałów edukacyjnych oparte na znanych rozwiązaniach dotyczących produktów cyfrowych. Szczególnie skoncentrowano się na pracochłonności wykonania materiałów oraz wynikającego z niej kosztu zakupu i ceny materiałów. Zaproponowano miarę rozmiaru obiektów edukacyjnych, która wykazuje korelację z pracochłonnością wykonania obiektów. Zaproponowano także metody dotyczące...

  • Polyisocyanates from Sustainable Resources

    Isocyanates, next to polyols, constitute the major components essential for polyurethane (PU) production. They have a significant impact on physicochemical, mechanical, and thermal properties of PU materials. They also have an impact on those materials’ purposes, forms, textures, and other features. The available and used isocyanates are of a petrochemical origin. With the development of a trend toward green chemistry in the science...

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  • Application of Thermo-chemical Technologies for Conversion of Associated Gas in Diesel-Gas Turbine Installations for Oil and Gas Floating Units

    Publication

    - Polish Maritime Research - Year 2019

    The paper considers the issue of thermo-chemical recovery of engine’s waste heat and its further use for steam conversion of the associated gas for oil and gas floating units. The characteristics of the associated gas are presented, and problems of its application in dual-fuel medium-speed internal combustion engines are discussed. Various variants of combined diesel-gas turbine power plant with thermo-chemical heat recovery are...

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  • Gas selectivity enhancement by sampling-and-hold method in resistive gas sensors

    Publication

    Commercial resistive gas sensors exhibit various sensitivity to numerous gases when working at different elevated temperatures. That effect is due to a change in velocity of adsorption and desorption processes which can be modulated by temperature. Thus, to reach better selectivity of gas detection, we propose to apply a known method (called the sampling-and-hold method) of cooling down the gas sensor in the presence of the investigated...

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