Search results for: NATURAL RADIOACTIVITY

• Natural radioactivity of solid and liquid phases from shale oil and gas prospection in Pomerania

  Publication

  • A. Mykowska
  • J. Hupka

  - POLISH JOURNAL OF ENVIRONMENTAL STUDIES - Year 2014

  Ionizing radiation intensity data and estimation of equivalent absorbed dose from solid and liquid samples from prospection of shale gas and oil at selected sites in Pomerania are presented. Naturally occurring radioactive materials (NORM) are associated with geological formations or fluids and can be enhanced during oil and gas production. They appear in e.g. drilling cuttings, flow back water, produced water, scale and sludge....

  Full text available to download

• JOURNAL OF ENVIRONMENTAL RADIOACTIVITY

  Journals

  ISSN: 0265-931X , eISSN: 1879-1700

• Radioactivity of drilling cuttings from shale resources of the Lower Paleozoic Baltic Basin, Poland

  Publication

  • A. Mykowska
  • A. Rogala
  • A. Kallas
  • J. Karczewski
  • J. Hupka

  - Physicochemical Problems of Mineral Processing - Year 2015

  Fractionated drilling wastes originating from shale gas exploration in the Baltic Basin in Pomerania were subjected to the measurements of mean activity concentrations of naturally occurring radioactive materials (NORMs).To better understand rock structure and texture, the X-ray diffraction analysis (XRD) and scanning electron microscopy(SEM) observation were used. To compare activity concentration of radionuclides in bulk wastes...

  Full text available to download

• Wystawa pt. "architektura natury | natura architektury"

  Publication

  • A. Kurkowska
  • A. Górka
  • M. E. Szarejko

  - Year 2023

  Wystawa dokumentuje ostatni etap działania, którego tematem było uczestnictwo architekta w cyklu życia natury. Twórca czerpie z przyrody inspiracje, kreuje abstrakcyjną ideę, nadaje jej materialną formę sięgając po plastyczną skałę, by ostatecznie przywrócić ją przyrodzie. Fotografie zapisały zaskakujące piękno niepozornych obiektów, które po chwili zniknęły z krajobrazu. Użyliśmy gliny wydobytej na polu w Piotrowie, gliniane byty...

• JOURNAL OF NATURAL PRODUCTS

  Journals

  ISSN: 0163-3864 , eISSN: 1520-6025

• The challenge of abandonment for the sustainable management of Palaearctic natural and semi-natural grasslands

  Publication

  • O. Valkó
  • S. Venn
  • M. Żmihorski
  • I. Biurrun
  • R. Labadessa
  • J. Loos

  - Hacquetia - Year 2018

  Full text to download in external service

• Natural architectural design

  Publication

  • J. Grima
  • A. Casha
  • J. Rybicki

  - Year 2015

  .

• NATURAL HISTORY

  Journals

  ISSN: 0028-0712

• NATURAL HAZARDS

  Journals

  ISSN: 0921-030X , eISSN: 1573-0840

• Export diversification and dependence on natural resources

  Publication

  • Z. H. Zarach
  • A. Parteka

  - ECONOMIC MODELLING - Year 2023

  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....

  Full text to download in external service

• Natural and synthetic antioxidants: An updated overview

  Publication

  • A. Augustyniak
  • G. Bartosz
  • A. Čipak
  • G. Duburs
  • L. Horáková
  • W. Łuczaj
  • M. Majekova
  • A. Odysseos
  • L. Rackova
  • E. Skrzydlewska... and 7 others

  - FREE RADICAL RESEARCH - Year 2010

  Full text to download in external service

• Homemade Preparations of Natural Biopesticides and Applications

  Publication

  • C. Adetunji
  • C. Egbuna
  • H. Tijjani
  • D. Adom
  • L. Tawfeeq
  • K. Patrick-Iwuanyanwu

  - Year 2020

  Full text to download in external service

• Natural convection from horizontal conic.

  Publication

  • S. Leble
  • W. Lewandowski

  - Year 2003

  Przedstawiono rozważania teoretyczne konwekcji swobodnej od powierzchni bocznej poziomego stożka.

• Porous structure of natural and modified clinoptilolites

  Publication

  • P. Kowalczyk
  • M. Sprynskyy
  • A. P. Terzyk
  • M. Lebedynets
  • J. Namieśnik
  • B. Buszewski

  - JOURNAL OF COLLOID AND INTERFACE SCIENCE - Year 2006

  Opisano wyniki badań struktury porowatej naturalnych zeolitów. W badaniach wykorzystano technikę SEM oraz wyznaczono izotermy procesu adsorpcji-desorpcji azotu w temperaturze 77 st. K.

• Synchrotron Radiation in Natural Science

  Journals

  ISSN: 1644-7190

• Nature Communications

  Journals

  ISSN: 2041-1723

• Hydrogels Based on Natural Polymers for Cardiac Applications

  Publication

  • Z. Cemka
  • P. Szarlej
  • E. Piłat
  • P. Gnatowski
  • M. Sienkiewicz
  • J. Kucińska-Lipka

  - Chemistry & Chemical Technology - Year 2022

  In this work agar- and borax-based hydrogels with and without the addition of poly(vinyl alcohol) (PVA) at different concentrations were synthesized. Hydrogels were modified by the same amount of acetylsalicylic acid (ASA) which exhibits antithrombotic properties. The effect of modification by ASA on the properties of hydrogels was analyzed.

  Full text available to download

• Integration of natural and artificial intelligence in production systems

  Publication

  • L. Zawadzka
  • J. Badurek
  • K. Oliński

  - Year 2011

  Integration processes play an increasingly important role in modern economy, and seriously co-decide about the effectiveness of the company. Integration phase occurs in the system life cycle by preceding the final stages of its implementation and activation. In turn, used in software engineering (SE) iteration-evolutionary models, such as spiral model make that the integration activities can occur in varying degrees in all phases...

• The Role of the Natural Antioxidant Mechanism in Sperm Cells

  Publication

  • A. Kowalczyk

  - Reproductive Sciences - Year 2022

  Full text to download in external service

• Natural language dictionaries implemented as finite automata

  Publication

  • J. Daciuk
  • J. Piskorski
  • S. Ristov

  - Year 2010

  Rozdział przedstawia wykorzystanie automatów skończonych jako słowników języka naturalnego. Podane są podstawy teoretyczne. Omówione są zastosowania: realizacja doskonałej funkcji mieszającej, analizy i syntezy morfologicznej, poprawiania pisowni i dopisywania znaków diakrytycznych, wydobywanie informacji. Podano algorytmy tworzenia automatów oraz omówiono sposoby reprezentacji automatów z uwzględnieniem kompresji.

  Full text to download in external service

• Ecology and Conservation of Steppes and Semi-Natural Grasslands

  Publication

  • O. Valkó
  • M. Zmihorski
  • I. Biurrun
  • J. Loos
  • R. Labadessa
  • S. Venn

  - Hacquetia - Year 2016

  Full text to download in external service

• Inhibition of cancer antioxidant defense by natural compounds

  Publication

  • A. Sznarkowska
  • A. Kostecka
  • K. Meller
  • K. Bielawski
  • K. P. Bielawski

  - Oncotarget - Year 2017

  Full text to download in external service

• Natural Hydroxyapatite as a by-product of industrial biomass gasification

  Publication

  • K. Kwiatkowski
  • M. Dudyński
  • P. Kazimierski
  • M. Klein
  • M. Janczarek
  • D. Kardaś

  - Year 2016

  .

• Degradation of polyurethanes in Compost Under Natural Conditions

  Publication

  • K. Krasowska
  • H. Janik
  • A. Gradys
  • M. Rutkowska

  - JOURNAL OF APPLIED POLYMER SCIENCE - Year 2012

  The estimation of degradibility of different polyurethanes under natural weather depending conditions in compost pile was the subject of the studies. The incubation of polymer samples took place for a period up to 24 months. The characteristic parameters of the compost: temperature, pH, moisture content, and activity of dehydrogenasis were monitored and their influence on degradation of polyuiretahnes was discussed. The compostability...

  Full text to download in external service

• NATURAL DEEP EUTECTIC SOLVENTS IN EXTRACTION PROCESS

  Publication

  • K. Owczarek
  • N. Jatkowska
  • J. Płotka-Wasylka
  • M. Rutkowska
  • O. Shyshchak
  • M. Bratychak
  • J. Namieśnik

  - Chemistry & Chemical Technology - Year 2016

  Developing new, eco-friendly solvents which would meet technological and economic demands is perhaps the most popular aspects of Green Chemistry. Natural deep eutectic solvents (NADES) fully meet green chemistry principles. These solvents offer many advantages including biodegradability, low toxicity, sustainability, low costs and simple preparation. This paper provides an overview of knowledge regarding NADES with special emphasis...

  Full text available to download

• Natural convective heat transfer from isothermalconic

  Publication

  • W. Lewandowski
  • S. Szymański
  • P. Kubski
  • E. Klugmann-Radziemska
  • H. Bieszk
  • T. Wilczewski

  - INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER - Year 1999

  Theoretical considerations on convective heat transfer from isothermal upward conicalsurfaces have been presented. The physical model of this phenomenon consists of an isothermalcone of inclination angle (φ) between the cone generating line (X) and the radius (R) of the cone base. The angle is a parameter of conical surface which varied from (φ = 0−circular horizontal plate) to (φ = π/2—vertical cylinder) . Onthe basis of Navier–Stokes...

• Natural convection in symmetrically heated vertical channels

  Publication

  • W. Lewandowski
  • M. Ryms
  • H. Denda

  - INTERNATIONAL JOURNAL OF THERMAL SCIENCES - Year 2018

  The study describes natural convection through a vertical channel, open on four sides and bound by two isothermal walls. Both balancing and infrared experimental investigations were performed in air (Pr = 0.71) to estimate the impact of channel width s and wall-to-ambient temperature difference (tw - t∞) on natural convective heat transfer, the formation of air flow patterns and the rate of flow pattern formation. The study was...

  Full text available to download

• Degradation of modified TPS in natural and industrial compost

  Publication

  • H. Janik
  • M. Sienkiewicz
  • M. Wawrowska
  • K. Wiecierzycka
  • A. Haryńska

  - Year 2017

  The aim of the study was to determine in the pilot studies the degree of decomposition of modified by us thermoplasic starch (potato starch).Commercial and new obtained by us foils were tested in an open roofing at normal weather conditions. The most visible changes were observed in TPS modified by epoxidized soybean oil and arabic gum contrary to commercial foils where there was no mass change observed.

• Radionuclides activity and effective doses referred to geological formations

  Publication

  • A. Mykowska
  • J. Hupka

  - Journal of Industrial and Intelligent Information - Year 2014

  Naturally occurring radioactive materials (NORM) are present in Earth’s crust and they caused natural background radiation, variable in different regions. Liquid, gas and solid radionuclides emit three types of radiation – alpha, beta and gamma. Fluctuations of natural radioactivity in different geological formations in the world and in Poland were compared in relation to radiological hazard. Also drilling cuttings from boreholes...

• Phosphorus removal by application of natural and semi-natural materials for possible recovery according to assumptions of circular economy and closed circuit of P

  Publication

  • M. Kasprzyk
  • M. Gajewska

  - SCIENCE OF THE TOTAL ENVIRONMENT - Year 2019

  In the last fewyears the idea of circular economy has become essential. Thus, designing methods of nutrients removal should be based on usingmaterials that make it possible to recover those nutrients. Recently,methods applied in wastewater treatment plants cannot provide optimal results; moreover, the application of commercial coagulants like ferric chloride and polyaluminumchloride can cause difficulties in potential recovery...

  Full text available to download

• Archives of natural history

  Journals

  ISSN: 0260-9541 , eISSN: 1755-6260

• CHEMISTRY OF NATURAL COMPOUNDS

  Journals

  ISSN: 0009-3130 , eISSN: 1573-8388

• Geography and Natural Resources

  Journals

  ISSN: 1875-3728 , eISSN: 1875-371X

• African Natural History

  Journals

  ISSN: 1816-8396 , eISSN: 2305-7963

• Natural Hazards Review

  Journals

  ISSN: 1527-6988 , eISSN: 1527-6996

• Natural Products Journal

  Journals

  ISSN: 2210-3155 , eISSN: 2210-3163

• Natural Gas Geoscience

  Journals

  ISSN: 1672-1926

• Agriculture and Natural Resources

  Journals

  eISSN: 2452-316X

• Journal of Natural Remedies

  Journals

  ISSN: 0972-5547

• Natural Products and Bioprospecting

  Journals

  ISSN: 2192-2209

• Natural Product Sciences

  Journals

  ISSN: 1226-3907

• Tropical Natural History

  Journals

  ISSN: 1513-9700

• Natural Resources Research

  Journals

  ISSN: 1520-7439 , eISSN: 1573-8981

• Journal of Natural Disasters

  Journals

  ISSN: 1004-4574

• NATURAL AREAS JOURNAL

  Journals

  ISSN: 0885-8608 , eISSN: 2162-4399

• Natural History Sciences

  Journals

  ISSN: 2385-0442 , eISSN: 2385-0922

• NATURAL RESOURCE MODELING

  Journals

  ISSN: 0890-8575 , eISSN: 1939-7445

• Journal of Natural Medicines

  Journals

  ISSN: 1340-3443 , eISSN: 1861-0293

• Natural Sciences Education

  Journals

  ISSN: 2168-8273 , eISSN: 2168-8281

• NATURAL PRODUCT REPORTS

  Journals

  ISSN: 0265-0568 , eISSN: 1460-4752