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Tytuł:
Ocena internetowych kanałów komunikacji z klientem w procesie współtworzenia innowacji
The efficiency of internet communication channels with the customer in the proces of innovation co-creating
Autorzy:
Jelonek, Dorota
Powiązania:
https://bibliotekanauki.pl/articles/432400.pdf
Data publikacji:
2014
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
internet communiaction channels
efficiency of Internet communication channels
co-creation
innovation
Opis:
Together with the development of information and communication possibilities of the Internet there is an increase of the role of the customer as the partner in the process of co-creating innovation with the utilization of widely understood model of open innovations. The aim of the article is the assessment of the efficiency of communiaction channels used by firms in relations with the customer. In the assessment there were used findings of research carried out among students who declared activities in scope of: notifyings innovative ideas, testing of products (services) or undertaking the role of a consultant. The assessment took into account the criteria of comfort, speed and efficiency from the perspective of customer and the reaction of a company in the given channel of communication. E-mail, sms, forum, blog, community portal are comfortable but their utilization by companies requires improvement in respect of rate of reaction and efficiency. The channels of communication in the synchronous mode were highly evaluated in respect of efficiency and comfort: telephone, chat, video conversation and Skype. The best but still little widespread solutions are platforms for ideas reporting and the collaboration with the user which are created within company's portals.
Źródło:
Informatyka Ekonomiczna; 2014, 1(31); 318-329
1507-3858
Pojawia się w:
Informatyka Ekonomiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance of Distribution Channels Shown on the Example of Company Specialising in Meat Processing
Autorzy:
Rorat, Joanna Maria
Powiązania:
https://bibliotekanauki.pl/articles/504080.pdf
Data publikacji:
2016
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
distribution channels
effectiveness of distribution channels meat processing
minimization distribution costs
Opis:
As far as the rapid development of global marketing network is concerned , it is easy to notice that logistics is becoming increasingly important. The growing competition makes these networks more efficient. More and more opportunities to bring products to the customer disorganize sales network management. The analysis of the effectiveness of distribution channels allows a close examination of efficiency of how the company reaches its customers. It also supports decisions regarding the introduction of new, previously unused channels of distribution, or modification of the already in-use ones. The range of work included a manufacturer specializing in meat processing and production of meat products, distributed in southern Poland. Using the point-analytical method, the effectiveness of distribution channels used in the company was evaluated. As a result, it was possible to determine the performance of individual sales channels. There were three distribution channels: by-company, sponsored and networking. The most effective appeared to be the networking channel, which scored a total of 235 points. Given the greatest potential of distribution, this channel, in terms of the size of the batch supplied to markets, without doubt will continue to be one of the leading directions of development in the future of the company. In second place was the by-company channel with 195 points, while the sponsored channel was the least effective. However, as a conclusion from the information gathered from the company itself, each channel will be developed in the future, proportionally to their current rank.
Źródło:
Logistics and Transport; 2016, 29, 1; 19-24
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling the phenomena accompanying the condensation of environmentally friendly refrigerants in mini-channels
Autorzy:
Kuczyński, Waldemar
Powiązania:
https://bibliotekanauki.pl/articles/2204074.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
refrigerants
condensation
mini-channels
Opis:
This paper presents the results of an experimental study and mathematical modeling of the effect of dynamic instabilities on the condensation phase transformation of the refrigerants homogeneous R134a and its replacement in the form of isomers R1234yf and R1234ze and R404A or R507 and R448A in pipe mini-channels. In the case of homogeneous chlorofluorocarbons (CFCs), it is the 1234 isomers that are envisioned as substitutes for the withdrawn ones with high ozone depletion potential and global warming potential. For zeotropic and azeotropic mixtures, for example, these are R507 or R448A. The paper presents a dimensional analysis procedure based on the Buckingham Π theorem to develop a regression velocity model of pressure dynamic instabilities. The experimental part of the work was carried out with the use of tubular mini-channels with internal diameter 1.40–3.3 mm.
Źródło:
Archives of Thermodynamics; 2023, 44, 1; 121--137
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Error statistics for concatenated systems on non-renewal time-varying channels
Autorzy:
Pimentel, C.
Powiązania:
https://bibliotekanauki.pl/articles/309548.pdf
Data publikacji:
2001
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
finite state channels
multigap distribution
constrained codes
concatenated systems
Gilbert-Elliott channels
combinatorial methods
Opis:
The statistics of the error process generated by a discrete super channel formed by the concatenation of a constrained encoder, a non-renewal finite state channel (FSC), and a constrained decoder is studied in this paper. First, recursions are developed for the error weight distribution. This statistics is relevant to the design of coding schemes and interleaving in concatenated. systems. We also study the renewal nature of the residual error process as modified by the constrained decoder. Ferreira et al. conjectured that if the channel model is a renewal FSC, the super channel can be modeled as a similar renewal model. We use a statistics called the multigap distribution to analytically disprove this hypothesis. Furthermore, the effect of interleaving is investigated from a new perspective using the variance of the multigap distribution.
Źródło:
Journal of Telecommunications and Information Technology; 2001, 3; 55-60
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measurements of 3D turbulence structure in a compound channel
Autorzy:
Czernuszenko, W.
Kozioł, A.
Rowiński, P. M.
Powiązania:
https://bibliotekanauki.pl/articles/241134.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
open channels
compound channel
turbulence
measurements
Opis:
The paper describes some turbulence measurements carried out in an experimental compound channel with flood plains. The surface of the main channel bed was smooth and made of concrete, whereas the floodplains and sloping banks were covered by cement mortar composed with terrazzo. Instantaneous velocities were measured be means of a three-component acoustic Doppler velocity meter (ADV) manufactured by Sontek Inc. This article presents the results of measurements of primary velocity, the distribution of turbulent intensities, Reynolds stresses, autocorrelation functions, turbulent scales, as well as the energy spectra.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2007, 54, 1; 55-73
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of fossils on diagenetically controlled reservoir quality : the Zechstein Brońsko Reef
Autorzy:
Fheed, Adam
Powiązania:
https://bibliotekanauki.pl/articles/191256.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
carbonates
dissolution channels
diagenesis
fossils
porosity
Opis:
Although the sedimentation and diagenesis of the Polish Zechstein Limestone strata (Ca1, Permian) already have been investigated, relatively little has been done to resolve their petrophysical potential. Therefore, the gap between sedimentological and petrophysical studies was bridged through an integrated analysis of geological and geophysical data. The results of core description, polarized-light microscopy, well log interpretations and laboratory measurements on core samples were combined with previously published nuclear magnetic resonance (NMR) and X-ray microtomography (μCT) data, especially helpful in the recognition of pore geometry. The Ca1 strata of the Brońsko-1 and Brońsko-2 wells, located on the Zechstein Brońsko Reef (West Poland), were studied to determine the influence of fossils on porosity and permeability. It was concluded that greater diversification of the original biota led to an increase in porosity and variation in pore geometry. While encrusting organisms such as foraminifers promoted the development of channel and fracture porosity, the dissolution of the primarily aragonitic bivalve and gastropod shells and the shells of terebratulid brachiopods often gave rise to the formation of cavernous and mouldic porosity. The channels appear to be most common in the bryozoan-foraminifer biofacies, representing a shallowing of the depositional environment. Caverns, in turn, corresponded to the organisms of the brachiopod-bryozoan and the lightly karstified bivalve-gastropod biofacies, both of which probably experienced the influence of sabkha conditions, leading to a general decrease in porosity. The bryozoan zoecia tended to enhance both primary intraparticle voids, and after their dissolution, secondary intraparticle pores, which showed limited connectivity in the high-energy Acanthocladia biofacies, where considerable fragmentation of fossils took place, hence decreasing the permeability. Anhydrite cementation was found to be the most pronounced factor controlling porosity destruction, while dolomitization enhanced it significantly, especially for the stromatolitic biofacies, where small, unconnected vugs were formed owing to this process. The permeability is typically below 100 mD, and this is caused by the rich diagenetic history of the reef, that recorded marine, sabkha-related and burial cementation, now represented by the different fabrics of anhydrite, calcite, and dolomite.
Źródło:
Annales Societatis Geologorum Poloniae; 2019, 89, 1; 47-81
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The problem with flow in radial channels synchronous machine
Autorzy:
Makki, Z.
Janda, M.
Deeb, R.
Powiązania:
https://bibliotekanauki.pl/articles/377188.pdf
Data publikacji:
2012
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
radial channels
synchronous machine
flow rate
Opis:
This paper describes the use of computational methods for solving the flow of the air-cooling in the large synchronous machines where it is used to cool the stator winding and stator radial channels which are located between the stator packet sheets. The overall process flow is mostly influenced by the size of air gap between stator and rotor, the shape of the radial channels, and by flow rates in machines. This paper mostly discusses about the influence flow rate of the cooling medium which has effects on the pressure distribution and flow rate in the radial channels. Cooling medium considered in this article an air and for and for calculation was chosen ANSYS CFX.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2012, 72; 75-82
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On a New Approach to SNR Estimation of BPSK Signals
Autorzy:
Moazzeni, T.
Amei, A.
Ma, J.
Jiang, Y.
Powiązania:
https://bibliotekanauki.pl/articles/227148.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
digital communication
statistical analysis
AWGN channels
Opis:
Signal-to-noise ratio (SNR) information is required in many communication receivers and their proper operation is, to a large extent, related to the SNR estimation techniques they employ. Most of the available SNR estimators are based on approaches that either require large observation length or suffer from high computation complexity. In this paper, we propose a low complexity, yet accurate SNR estimation technique that is sufficient to yield meaningful estimation for short data records. It is shown that our estimator is fairly close to the (CRLB) for high SNR values. Numerical results also confirm that, in terms of convergence speed, the proposed technique outperforms the popular moment based method, M2M4.
Źródło:
International Journal of Electronics and Telecommunications; 2012, 58, 3; 273-278
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ion channels-related diseases.
Autorzy:
Dworakowska, Beata
Dołowy, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/1044310.pdf
Data publikacji:
2000
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
nicotinic acetylcholine receptor
cGMP-gated channel
ion channels
glycine receptor
voltage-gated channels
channel-related genetic disorders
Opis:
There are many diseases related to ion channels. Mutations in muscle voltage-gated sodium, potassium, calcium and chloride channels, and acetylcholine-gated channel may lead to such physiological disorders as hyper- and hypokalemic periodic paralysis, myotonias, long QT syndrome, Brugada syndrome, malignant hyperthermia and myasthenia. Neuronal disorders, e.g., epilepsy, episodic ataxia, familial hemiplegic migraine, Lambert-Eaton myasthenic syndrome, Alzheimer's disease, Parkinson's disease, schizophrenia, hyperekplexia may result from dysfunction of voltage-gated sodium, potassium and calcium channels, or acetylcholine- and glycine-gated channels. Some kidney disorders, e.g., Bartter's syndrome, policystic kidney disease and Dent's disease, secretion disorders, e.g., hyperinsulinemic hypoglycemia of infancy and cystic fibrosis, vision disorders, e.g., congenital stationary night blindness and total colour-blindness may also be linked to mutations in ion channels.
Źródło:
Acta Biochimica Polonica; 2000, 47, 3; 685-703
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Public relations. Komunikacja dwukierunkowa
Public relations. Bidirectional communication
Autorzy:
Frączek, Adriana
Powiązania:
https://bibliotekanauki.pl/articles/902179.pdf
Data publikacji:
2012
Wydawca:
Gdańska Wyższa Szkoła Humanistyczna
Tematy:
public relations
communication
bidirectional communication
communication channels
Opis:
A variety of communication channels, which can use the organisation meant that the process is more difficult and requires huge effort, work, and learn in a very short time. The domain of specialists, PR is dialogue with the environment, is already known to many of the tools of PR, but it's just the Internet promotes the improvement of this interactive communication. Every action that we take on the Internet has a dimension of all forms must be present but PR surrounded with special care. Internet deep into relationships between an organization and its environment. Society is not able to permanently trust organization or institutions, which make sense, the aims and principles of ac-tion does not understand. PR communication methods with the environment, these classic with modern, permeate each other. This article attempts to clarify what is communication with the environment and what changes occur in the communication process as a result of digitisation in the practice of the use of PR tools.
Źródło:
Studia Gdańskie. Wizje i rzeczywistość; 2012, 9; 132-144
1731-8440
Pojawia się w:
Studia Gdańskie. Wizje i rzeczywistość
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Endothelium as target for large-conductance calcium-activated potassium channel openers
Autorzy:
Wrzosek, Antoni
Powiązania:
https://bibliotekanauki.pl/articles/1040527.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
endothelium-derived hyperpolarising factor
potassium channels
endothelium
Opis:
The endothelium is a highly active organ responsible for vasculatory tone and structure, angiogenesis, as well as hemodynamic, humoral, and inflammatory responses. The endothelium is constantly exposed to blood flow, sheer stress and tension. Endothelial cells are present as a vasculature in every tissue of the body and react to and control its microenvironment. A variety of ion channels are present in the plasma membranes of endothelial cells. These include potassium channels such as inwardly rectifying potassium (Kir) channels, voltage-dependent (Kv) channels, ATP-regulated potassium (KATP) channels and three types of calcium-activated potassium channels (KCa), the large (BKCa), intermediate (IKCa), and small (SKCa) -conductance potassium channels. Potassium current plays a critical role in action potentials in excitable cells, in setting the resting membrane potential, and in regulating neurotransmitter release. Mitochondrial isoforms of potassium channel contribute to the cytoprotection of endothelial cells. Prominent among potassium channels are families of calcium-activated potassium channels, and especially large-conductance calcium-activated potassium channels. The modulation of BKCa channels, which are voltage- and calcium-dependent, has been intensively studied. The BKCa channels show large expression dynamics in endothelial cells and tissue-specific expression of large numbers of alternatively spliced isoforms. In this review, a few examples of the modulatory mechanisms and physiological consequences of the expression of BKCa channels are discussed in relation to potential targets for pharmacological intervention.
Źródło:
Acta Biochimica Polonica; 2009, 56, 3; 393-404
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transmembrane segment M2 of glycine receptor as a model system for the pore-forming structure of ion channels.
Autorzy:
Bednarczyk, Piotr
Szewczyk, Adam
Dołowy, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/1043689.pdf
Data publikacji:
2002
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
black lipid membrane
ion channels
glycine receptor
Opis:
The glycine receptor belongs to the ligand-gated ion channel superfamily. It is a chloride conducting channel composed of four transmembrane domains. It was previously shown that the second transmembrane domain (M2) of the glycine receptor forms an ion conduction pathway throught lipid bilayers. The amino-acid sequence of the transmembrane segment M2 of the glycine receptor has a high homology to all receptors of the ligand-gated ion channel superfamily. In our report, we have used a synthetic M2 peptide. It was incorporated into a planar membrane of known lipid composition and currents induced by M2 were measured by the Black Lipid Membrane technique. When the planar lipid bilayer was composed of 75% phosphatidylethanolamine and 25% phosphatidylserine, the reversal potential measured in a 150/600 mM KCl (cis/trans) gradient was -19 mV suggesting that the examined pore was preferential to anions, PK/PCl = 0.25. In contrast, when 75% phosphatidylserine and 25% phosphatidylethanolamine was used, the reversal potential was +20 mV and the pore was preferential to cations, PK/PCl = 4.36. Single-channel currents were recorded with two predominant amplitudes corresponding to the main-conductance and sub-conductance states. Both conductance states (about 12 pS and 30 pS) were measured in a symmetric solution of 50 mM KCl. The observed single-channel properties suggest that the selectivity and conductance of the pore formed by the M2 peptide of the glycine receptor depend on the lipid composition of the planar bilayer.
Źródło:
Acta Biochimica Polonica; 2002, 49, 4; 869-875
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of the indoor radio propagation channel at 2.4 GHz
Autorzy:
Wysocki, T. A.
Zepernick, H.-J.
Powiązania:
https://bibliotekanauki.pl/articles/309221.pdf
Data publikacji:
2000
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
indoor radiocommunication
microwave propagation
fading channels
jamming
Opis:
The unlicensed industrial, scientific, and medical (ISM) band at 2.4 GHz has gained increased attention recently due to the high data rate communication systems developed to operate in this band. The paper presents measurement results of fading characteristics, multipath parameters and background interference for these frequencies. Some statistical analysis of the measured data is presented. The paper provides information that may be useful in design and deployment of communication systems operating in the 2.4 GHz ISM band, like those compilant with IEEE 802.11 standard and Bluetooth open wireless standard.
Źródło:
Journal of Telecommunications and Information Technology; 2000, 3-4; 84-90
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Marketing costs and price spread for selected fruit crops in Haryana state: a stydy of selected districts
Koszty sprzedaży i rozpiętość cenowa wybranych upraw owoców w stanie Haryana: analiza wybranych dystryktów
Autorzy:
Rani, Sumista
Lal, Choote
Kait, Rohtas
Powiązania:
https://bibliotekanauki.pl/articles/2165512.pdf
Data publikacji:
2022
Wydawca:
Akademia Bialska Nauk Stosowanych im. Jana Pawła II w Białej Podlaskiej
Tematy:
fruit grower
intermediaries
fruit crops
marketing channels
Opis:
Subject and purpose of work: The study aims to analyse the existing marketing system along with marketing channels, costs, margins, and marketing efficiency. Materials and methods: The study was conducted in the districts of Sirsa, Sonipat and Yamuna Nagar in Haryana during the year 2020–21. The study was based on primary data collected from a field survey with the help of a pre-tested questionnaire. A simple tabulated method, price spread, and market efficiency analyses were employed. Results: The study revealed that the producer share in terms of consumer rupees is the highest in Channel VI, followed by Channels IV, V and II. Channel VI is the most efficient channel due to the absence of intermediaries. Channel I is the least efficient due to the greatest number of intermediaries present in this channel. Conclusions: The study has suggested that the government should regulate the fruit trade so that the involvement of mediators in the fruit market may be reduced. Cold storage should be provided at a reasonable price. The government should provide transportation facilities (refrigerated lorries) for fruit products at a reasonable cost.
Źródło:
Economic and Regional Studies; 2022, 15, 4; 533-547
2083-3725
2451-182X
Pojawia się w:
Economic and Regional Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Consumptions Structure and Consumer Insights for Dairy Products - Avoidance, Distribution, own Production and Occasions for Consumption
truktura i prawidłowości dotyczące konsumpcji produktów mlecznych - unikanie, kanały dystrybucji, samozaopatrzenie, okazje spożywania
Autorzy:
Wielicka, Anna
Powiązania:
https://bibliotekanauki.pl/articles/2033435.pdf
Data publikacji:
2004-12-31
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Tematy:
Consumption
Consumer
Milk market
Distribution channels
Supply
Opis:
The paper presents some features of population regarding consumption of dairy products, which is examined in four following areas: avoidance, places of purchase, inclination to undertaking own production, occasions for consumption. The research resulted in following findings. Taste is the most important reason to reject milk products. Consumers buy them mainly in convenience stores. High number of consumers produce milk products. The most frequent occasion for consumption of dairy products is breakfast. Also milk drinks accompany mainly this meal.
Praca ma na celu scharakteryzowanie konsumenta produktów mlecznych w czterech wybranych wymiarach:1) przyczyn rezygnacji z konsumpcji,2) miejsc zakupu produktów mlecznych,3) przetwarzania mleka we własnym zakresie,4) okazji spożywania produktów mlecznych.Wyniki badań przedstawiają się następująco:1) najczęstszym powodem odrzucenia produktów mlecznych jest ich smak,2) najczęstszym miejscem zakupu są sklepy osiedlowe położone blisko miejsca zamieszkania respondentów,3) produkcja własna przetworów mlecznych dotyczy znacznego procentu badanych,4) produkty mleczne najczęściej są konsumowane podczas śniadania.
Źródło:
Journal of Agribusiness and Rural Development; 2004, 3, 359; 211-227
1899-5241
Pojawia się w:
Journal of Agribusiness and Rural Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Laser modified functional carbon-based coatings on titanium substrate for cardiac tissue integration and blood clotting inhibition
Autorzy:
Major, Roman
Ostrowski, Roman
Surmiak, Marcin
Trembecka-Wójciga, Klaudia
Lackner, Jurgen
Powiązania:
https://bibliotekanauki.pl/articles/1844973.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
thin layers
migration channels
laser ablation
microstructure
Opis:
The work focused on developing functional coatings on titanium substrates that would facilitate the integration with the cardiac tissue and with a specific form of connective tissue like blood. Surface modifications consisted in the laser evaporation of part of the biocompatible layer, thus creating a suitable environment for a particular tissue. For the myocardium integration, the metal surface was refined by biohemocompatible coatings. Such surfaces were the starting point for further modifications in the form of channels. The channeled surfaces enabled a controlled cell migration and proliferation. The interaction of endothelial cells with the material was highly dependent on the surface characteristics such as: topography, microstructure or mechanical properties. The controlled cellular response was achieved by modifying the surface to obtain a network of wells or channels of different dimensions via the laser interference lithography. This technique determined a high resolution shape, size and distribution patterns. As a result, it was possible to control cells in the scale corresponding to biological processes. The surface periodization ensured the optimal flow of oxygen and nutrients within the biomaterial, which was of a key importance for the cell adhesion and proliferation. The work attempted at producing the surface networks mimicking natural blood vessels. To stimulate the formation of new blood vessel the finishing resorbable synthetic coatings were applied on the surface to act as a drug carrier. Therefore, the initial trial to introduce factors stimulating the blood vessels growth was performed.
Źródło:
Engineering of Biomaterials; 2020, 23, 155; 22-31
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of distribution and sales of low alcohol beverages in Poland
Autorzy:
Majchrzak-Lepczyk, Justyna
Szymczak, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/1833810.pdf
Data publikacji:
2020
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
distribution
distribution channels
sale techniques
logistics
innovations
Opis:
The struggle for the customer is symptomatic of the companies operating on contemporary markets. Developing new distribution channels and sales techniques is manifestation of the struggle. Dynamic market changes determine how vendors operate and induce them to implement innovation concepts in distribution, sales and logistics. These original solutions create new shopping modes and possibilities. The purpose of the paper is to present new solutions in this area, which are implemented and used within the alcohol industry in Poland. Scope of the study relates to beverages of low alcohol excluding beer. The authors focus mainly on solutions for distribution and sales, but they won’t pass over complementary solutions for customer communication, including those aimed at education of consumers, which is essential in this industry. The structure of the paper makes it possible to present transformation of alcohol market in Poland, taking into account changes in the processes and the value they create for the consumer.
Źródło:
Research in Logistics & Production; 2020, 10, 1; 23--34
2083-4942
2083-4950
Pojawia się w:
Research in Logistics & Production
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Organized Economic Interests and European Integration: the Question of (neo)corporatism
Autorzy:
Ząbkowicz, Anna
Powiązania:
https://bibliotekanauki.pl/articles/517154.pdf
Data publikacji:
2014
Wydawca:
Instytut Badań Gospodarczych
Tematy:
economic interests
channels of access
European Union
Opis:
When economic development is considered, political economy is at stake; in this perspective growth or counter-growth forces operate within the institutional framework. The analysis focuses on corporatist forms of social dialogue in the international environment of the EU and within the European structures. First, the notion of corporatism as opposed to other institutionalized channels of access is explained. Then, the paper presents corporatist forms at the national level under change. Next, it deals with interest coordination at the European Commission level. The paper concludes that an erosion of corporatist forms is visible; no embracing pattern in the EU should be expected instead; on the contrary, increasing fragmentation of lobbying is observed.
Źródło:
Equilibrium. Quarterly Journal of Economics and Economic Policy; 2014, 9, 1; 7-20
1689-765X
2353-3293
Pojawia się w:
Equilibrium. Quarterly Journal of Economics and Economic Policy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Elektroniczne i klasyczne metody wewnętrznego komunikowania się w zarządzaniu bezpieczeństwem i higieną pracy
Electronic and classical communication channels in OSH management
Autorzy:
Pawłowska, Z.
Powiązania:
https://bibliotekanauki.pl/articles/180699.pdf
Data publikacji:
2015
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
wewnętrzne komunikowanie się
elektroniczne metody komunikowania się
klasyczne metody komunikowania się
internal communication
electronic communication channels
classical communication channels
Opis:
W komunikacji wewnętrznej przedsiębiorstw coraz większą rolę odgrywają metody elektroniczne. W celu określenia, w jakim stopniu są one wykorzystywane i uznawane za przydatne w zarządzaniu bezpieczeństwem i higieną pracy przeprowadzono badania w 86 przedsiębiorstwach. Wyniki badań wykazały, że klasyczne metody przekazywania informacji na tematy bhp (na zebraniach, w formie pisemnej oraz znaków graficznych, podczas dyskusji nieformalnych) są stosowane znacznie częściej niż elektroniczne i oceniane jako skuteczniejsze. Dominują one również wśród metod nowo wprowadzanych w ciągu ostatnich 3 lat w badanych przedsiębiorstwach.
Electronic communication channels are still growing m importance m companies' internal communication. To find out how they are used in 0SH management the survey has been conducted in 86 companies. According to the results of the survey classical channels of communication (oral and written) are significantly more often used than electronic ones and assessed as more effective. They are also more frequently introduced as new channels of communication in the surveyed companies.
Źródło:
Bezpieczeństwo Pracy : nauka i praktyka; 2015, 5; 10-13
0137-7043
Pojawia się w:
Bezpieczeństwo Pracy : nauka i praktyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Distribution of Useful Frequencies in Polygraph Sensor Channels
Autorzy:
White, Bruce
Powiązania:
https://bibliotekanauki.pl/articles/523266.pdf
Data publikacji:
2017
Wydawca:
Krakowska Akademia im. Andrzeja Frycza Modrzewskiego
Tematy:
polygraph sensor channels
infrared plethysmo
pneumo
electrodermal
cardio
Opis:
Purpose: to help other polygraph researchers better understand the distribution of energy across diff erent frequencies in the standard six polygraph channels in common use.Th e channels shown will be pneumo, electrodermal (Axciton), cardio cuff pressure, movement sensor, and infrared plethesmo (Axciton). In all cases we use a zero phase high pass filter with a fourth order roll off . Unless otherwise noted, all frequency traces are kept with a constant gain to show their relative energy or strength content.
Źródło:
European Polygraph; 2017, 11, 4(42); 161-166
1898-5238
2380-0550
Pojawia się w:
European Polygraph
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calculation method for flow boiling and flow condensation of R134a and R1234yf in conventional and small diameter channels
Autorzy:
Mikielewicz, D.
Jakubowska, B.
Powiązania:
https://bibliotekanauki.pl/articles/259535.pdf
Data publikacji:
2017
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
heat transfer coefficient
flow boiling
conventional channels
minichannels
Opis:
The paper presents the results of calculations performed using the authors’ model to predict the heat transfer coefficient during flow boiling for two refrigerants R134a and R1234yf. The experimental data from various past studies have been collected and the calculations have been conducted for the full range of quality variation and a wide range of mass velocity. The aim of the study was to test the sensitivity of the in-house flow boiling and flow condensation model. The importance of taking into account the surface tension as the parameter exhibiting its importance in case of the flow in minichannels, as well as the influence of the reduced pressure were analysed. The obtained numerical results show good consistency with those recorded in the experiments.
Źródło:
Polish Maritime Research; 2017, S 1; 141-148
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling spatial aspects of mobile channel for low antenna height environments
Autorzy:
Simsim, M. T.
Khan, N. M.
Rapajic, P. B.
Powiązania:
https://bibliotekanauki.pl/articles/309429.pdf
Data publikacji:
2006
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
Gaussian distributions
geometric modeling
multi-path channels
scattering
Opis:
It is essential to have deep understanding of the mobile radio channel in particular for radio communication modeling and advanced technology system design. Models for the mobile radio channel are vital for the study of smart antenna systems, both for the design of algorithms, system-testing purposes, and for network planning. This paper provides an intensive study of the spatial characteristics of the mobile channel for low antenna height cellular environments, i.e., picocells and microcells, assuming Gaussian distributed scatterers. We investigate previous work on the angle of arrival (AoA) statistics for Gaussian distributed scatterers and make appropriate comments. Further, we employ the recently proposed eccentro-scattering physical channel model, as a generalized model, to derive the probability density function (pdf) of AoA of the multipaths at base station (BS) assuming Gaussian distributed scatterers around both BS and mobile station (MS). We found that the pdf of AoA at BS is directly affected by the standard deviation of the scatterers' density and the size of the scattering disc. The derived formulas, in closed form, can be used further for performance assessment of smart antennas and beamwidth design purposes.
Źródło:
Journal of Telecommunications and Information Technology; 2006, 2; 97-105
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
THE ROLE OF INFORMATION SYSTEMS IN LOGISTIC ENTERPRISES
Autorzy:
Parlińska, Maria
Petrovska, Iryna
Powiązania:
https://bibliotekanauki.pl/articles/452842.pdf
Data publikacji:
2013
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
wholesale market
information distribution channels
Analytical Hierarchy Process
Opis:
Well-developed information channels play very important role for the institution. In this paper had been researched the Ukrainian wholesale market for purpose to make the comparison between information distribution channels on the chosen agricultural wholesale markets in Poland and Ukraine. Also had been defined the recommendations for future development of information distribution systems for purpose to improve the market activity.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2013, 14, 2; 139-147
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Large-array signal processing in long-range underwater channels: coherence effects and adaptive approach to the multimode signal control
Autorzy:
Malekhanov, A.
Powiązania:
https://bibliotekanauki.pl/articles/332804.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Akustyczne
Tematy:
signal processing
underwater channels
multimode signal control
hydroacoustics
Opis:
The signal coherence degradation in spatial domain is an intrinsic scenario for large-array signal processing if the array size is greater as compared with the coherence length. For underwater sound, study of this issue is physically motivated by the fact that the discrete spectrum signal-carrying modes lose the mutual covariance at long ranges, so the signal coherence loss at the array inputs can be considerable. This is a case of comparative study of the large-array beamformers, optimal one included, aimed at realistic estimations of the coherence-induced effects on their performance. In this paper, we address the other aspect of the problem, namely, the source array synthesis in a random-inhomogeneous multimode channel under the criteria specified for the signal processor in remote receiving array. The criteria of the output SNR and the array SNR gain are considered to be a reasonable choice. An adaptive approach to the multimode signal control by the use of vertical source array is then formulated as an iterative algorithm for the source excitations and the corresponding modal spectrum of the signal wavefield. Computer simulation is performed for the vertical source and receiving arrays operating in the shallow-water channel from the Barents Sea.
Źródło:
Hydroacoustics; 2009, 12; 141-152
1642-1817
Pojawia się w:
Hydroacoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ANALGESIC AND ANTI-INFLAMMATORY ACTIVITY OF NEW ANALOGUES OF HC-030031: A TRPA1 CHANNEL ANTAGONIST
Autorzy:
Bryła, Adrian
Ślusarczyk, Marietta
Zygmunt, Małgorzata
Chłoń-Rzepa, Grażyna
Kazek, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/895336.pdf
Data publikacji:
2020-02-29
Wydawca:
Polskie Towarzystwo Farmaceutyczne
Tematy:
inflammation
pain
TRPA1 channels
HC-030031 analogues
Opis:
One of our study direction is research in the group of compounds affecting the TRPA1 ion channel which can perform an important function in pain (including neuropathic pain) and inflammation for example in asthma and other chronic respiratory diseases. The aim of this study was to evaluate the analgesic and anti-inflammatory activity of two analogues of HC-030031 analogues belonging to nitrogen derivatives of heterocyclic system: xanthine (cmpd 1) and benzimidazole (cmpd 2) with hydrazide and amide moieties respectively In this paper, for two derivatives (cmpd 1 and cmpd 2) potential analgesic and anti-inflammatory/anti-edematous activities were evaluated in animal models of pain in mice (writhing response test, formalin test) and inflammation in rats (carrageenan-induced paw edema test). Both the tested compounds 1 and 2 showed a significant analgesic and anti-inflammatory activity.
Źródło:
Acta Poloniae Pharmaceutica - Drug Research; 2020, 77, 1; 113-119
0001-6837
2353-5288
Pojawia się w:
Acta Poloniae Pharmaceutica - Drug Research
Dostawca treści:
Biblioteka Nauki
Artykuł
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