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Wyświetlanie 1-15 z 264
Tytuł:
Research on interactions of plasma streams with CFC targets in the Rod Plasma Injector facility
Autorzy:
Zaloga, D. R.
Kwiatkowski, R.
Skladnik-Sadowska, E.
Sadowski, M. J.
Nowakowska-Langier, K.
Powiązania:
https://bibliotekanauki.pl/articles/146642.pdf
Data publikacji:
2016
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
CFC target
optical spectroscopy
plasma streams
plasma-target interaction
Opis:
This paper present results of optical spectroscopy studies of interactions of intense plasma streams with a solid target made of carbon fibre composite (CFC). The experiments were carried out within the Rod Plasma Injector (RPI) IBIS facility. The optical measurements were performed first for a freely propagating plasma stream in order to determine the optimal operational parameters of this facility. Optical emission spectra (OES) were recorded for different operational modes of the RPI IBIS device, and spectral lines were identified originating from the working gas (deuterium) as well as some lines from the electrode material (molybdenum). Subsequently, optical measurements of plasma interacting with the CFC target were performed. In the optical spectra recorded with the irradiated CFC samples, in addition to deuterium and molybdenum lines, many carbon lines, which enabled to estimate erosion of the investigated targets, were recorded. In order to study changes in the irradiated CFC samples, their surfaces were analysed (before and after several plasma discharges) by means of scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS) techniques. The analysis of the obtained SEM images showed that the plasma irradiation induces noticeable changes in the surface morphology, for example vaporisation of some carbon fi bres and formation of microcracks. The obtained EDS images showed that upon the irradiated target surface, some impurity ions are also deposited, particularly molybdenum ions from the applied electrodes.
Źródło:
Nukleonika; 2016, 61, 2; 179-183
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of uncertainty on capital structure
Autorzy:
Wennie, Wennie
Nugroho, Vina C
Powiązania:
https://bibliotekanauki.pl/articles/18104683.pdf
Data publikacji:
2023-09-28
Wydawca:
Szkoła Główna Handlowa w Warszawie. Kolegium Zarządzania i Finansów
Tematy:
target leverage ratio
uncertainty
Opis:
The purpose of this study is to determine the effect of uncertainty on the capital structure of public listed companies in Indonesia. This study used asset volatility as a method of measuring uncertainty. The researchers use unbalanced panel data from 2009 to 2019 in order to assess and analyse the effect of uncertainty on the company‘s capital structure. The results of this study indicate a positive relationship between uncertainty and the company‘s target leverage.
Źródło:
Journal of Management and Financial Sciences; 2023, 47; 71-86
1899-8968
Pojawia się w:
Journal of Management and Financial Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
C2 NIWA community – segmentation criteria and building brand associations on the example of a selected target group
Autorzy:
Popławska, A.
Powiązania:
https://bibliotekanauki.pl/articles/1941581.pdf
Data publikacji:
2015
Wydawca:
Politechnika Gdańska
Tematy:
target groups
community
segmentation
Opis:
Every organization which offers products or services wishes to communicate with their customers in the most effective way. This kind of communication is based on proper selection of target groups which are identified in the process of market segmentation. Therefore, it is very important to ask the question to whom the message is to be directed and what kind of a message we want to convey. This article describes the selection criteria for target groups in the Centre of Competence for Novel Infrastructure of Workable Applications (C2NIWA) which is organized in the structures of the Gdansk University of Technology. It is a place that provides advanced IT platforms for the production of various types of applications. C2NIWA users have access to the most current knowledge in this field, advisory services, and tools to collaborate on IT projects. They needed to be divided into target groups and the communication methods were adapted to their specifics. The result of this process is the establishment of appropriate associations with the brand. The article presents the results of a short research showing what kind of associations were successfully built in one of the target groups by using a system of visual identification – the logo of the C2NIWA.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2015, 19, 4; 541-550
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of Call For Fire procedures when executing fire missions determination of target coordinates-Part I
Autorzy:
Krzyżanowski, S.
Piontek, J.
Powiązania:
https://bibliotekanauki.pl/articles/348451.pdf
Data publikacji:
2016
Wydawca:
Akademia Wojsk Lądowych imienia generała Tadeusza Kościuszki
Tematy:
CFF
target coordinator
procedures for determining settings
determination of target
coordinates
Opis:
This paper presents the possibility of using CALL FOR FIRE procedures during the execution of fire missions in artillery subunits according to national procedures. The conducted analyzes concerned the possibility of using data obtained from an observer in accordance with the CFF procedure at the point of fire control during the execution of fire tasks. It has been described in detail how to determine target coordinates, taking into account all the differences between the CFF procedure and the national procedures for determining settings in artillery subunits.
Źródło:
Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki; 2016, 3; 37-51
1731-8157
Pojawia się w:
Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of computer identification and location algorithm in small far infrared target recognition of ship under surge interference
Autorzy:
Zhu, R.
Powiązania:
https://bibliotekanauki.pl/articles/260230.pdf
Data publikacji:
2017
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
computer identification
target position estimation
location
ship
infrared target
surge interference
Opis:
The small far infrared target of ship in surge interference is easy to have visual deviation causing the low accuracy of target positioning and the bad target identification performance. In order to improve the accuracy of far small infrared targets recognition of ship under surge interference, this paper proposed far small infrared target recognition algorithm of ship based on distributed target position estimation and DOA location in computer vision model for constructing coherent distributed source array model of far small infrared target distribution of ship. This algorithm used MUSIC algorithm for the beamforming processing of far small infrared target echo model of ship. Combined with the adaptive filtering algorithm we carried out the surge interference suppression and the estimation of central direction of arrival and angle spread of far small infrared target of ship through multidimensional spectrum peak searching algorithm, realizing the joint estimation of distance of ship target, DOA and frequency parameters, so as to realize the accurate positioning and recognition of targets. Simulation results show that using this method for the far small infrared target recognition of ship under surge interference, the spectral peak sharpness of spectral peak search of target position is high, side-lobe suppression performance is good, which shows the high accuracy of target position estimation and location, the accuracy and anti-interference performance of far small infrared target recognition of ship is good, and has superior performance.
Źródło:
Polish Maritime Research; 2017, S 3; 171-181
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Target price accuracy and the information content of stock recommendations on the Warsaw Stock Exchange
Autorzy:
Brycz, Bogumiła
Włodarczyk, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/949684.pdf
Data publikacji:
2017
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
stock recommendation
target price
target price accuracy
analysts’ forecasts valuation model
Opis:
This paper examines target price accuracy conditional on whether the analyst’s report contains a precise valuation model with underlying assumptions, as well as investigates whether target price accuracy is related to the forecast accuracy of the variables used as inputs in the valuation models. The study is conducted based on the analysts’ stock recommendations issued in 2012 for companies listed on the Warsaw Stock Exchange. We find that approximately 67% of analysts’ price targets are achieved within a 12-month period following the release of a report. Only in the case of positive recommendations we can observe that analysts who provide precise valuation model within their reports issue significantly more accurate target prices. We also find that target price forecast error is, on average, lower for reports with more accurate forecasts of such variables used as inputs in the valuation models as revenue, EBIT and net profit but the results are not always statistically significant.
Źródło:
Financial Sciences. Nauki o Finansach; 2017, 4(33); 35-50
2080-5993
2449-9811
Pojawia się w:
Financial Sciences. Nauki o Finansach
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Algorytm detekcji obiektów dla radarowego detektora przeszkód
Algorithm for target detection for radar terget detector
Autorzy:
Szpakowska-Peas, E.
Powiązania:
https://bibliotekanauki.pl/articles/213340.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:
algorytm detekcji obiektów
Radarowy Detektor Przeszkód (RDP)
algorithm target detection
radar target detector
Opis:
W niniejszej pracy opisano algorytm detekcji obiektów dla modułu Radarowego Detektora Przeszkód (RDP). Został opisany sposób akwizycji oraz analizy sygnału z anteny. Algorytm detekcji został zaimplementowany na platformę systemową mikroprocesora sygnałowego TMS32F28335.
In this thesis an algorithm for target detection for Radar Target Detector has been presented. Acquisition method and antennas signal analysis has been described. Algorithm for target detection has been implemented in system of digital signal processor TMS32F28335.
Źródło:
Prace Instytutu Lotnictwa; 2012, 3 (224); 9-19
0509-6669
2300-5408
Pojawia się w:
Prace Instytutu Lotnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ultra-wideband radar targets discrimination based on discrete E-pulse synthesis
Autorzy:
Aleksandrov, A.
Shevgunov, T.
Baev, A.
Kuznetsov, Y.
Powiązania:
https://bibliotekanauki.pl/articles/307783.pdf
Data publikacji:
2005
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
radar target recognition
signal processing
Opis:
A frequency domain approach to the E-pulse radar target discrimination technique is introduced. This approach allows the interpretation of E-pulse phenomenon via the E-pulse spectrum. The discrete E-pulse and its relation to continuous E-pulse are shown. The addition of extra zeroes to E-pulse structure has been suggested and its influence on the increasing of discrimination accuracy has been proved. The results of discrimination scheme digital simulation by using the characteristic E-pulse parameters for known targets are presented.
Źródło:
Journal of Telecommunications and Information Technology; 2005, 2; 3-8
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing coatings of reflecting infrared radiation for a target for night shooting
Autorzy:
Swiderski, Waldemar
Hłosta, Paweł
Polak, Grzegorz
Tymiński, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/114598.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
thermal target
infrared
emissivity
shooting
Opis:
The paper presents the principle of operation of a new night-shooting target. Because this target requires a covering that reflects the infrared radiation flux generated by the reflector from its surface, testing of different variants of the cover and the shape of the target surface has been carried out. Emissivity is a physical parameter characterizing the radiant properties of real bodies. The emissivity coefficient of extruded aluminum sheet samples covered with a layer of green colored aluminum oxide was determined. The aluminum oxide layer was applied using two different technologies being galvanic and anodizing.
Źródło:
Measurement Automation Monitoring; 2019, 65, 2; 41-43
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Target Costing method in the Hospitality Industry
Autorzy:
Pajrok, Andor
Powiązania:
https://bibliotekanauki.pl/articles/628532.pdf
Data publikacji:
2014
Wydawca:
Fundacja Pro Scientia Publica
Tematy:
Target Costing, Strategy Accounting, USALI
Opis:
Traditional approaches to managing costs are based on the costs that are the result of existing capabilities and resources in the company. Adding to these costs a specified margin or profit, leads to the sales price. If the market is not ready to accept such a selling price, managers need to find opportunities for rationalization and cost reduction. Target cost management begins the process of managing the sales price and the planned profit that the market can accept, and only then is it possible to determine the cost of the product. In the planning phase of the product and the manufacturing process the approach is to finding a method to lower costs and to reduce them as much as possible. The aim this of study is to investigate the application of target (strategy) cost accounting methods in the Hospitality Industry.
Źródło:
Journal of Education Culture and Society; 2014, 5, 2; 154-165
2081-1640
Pojawia się w:
Journal of Education Culture and Society
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Work on developing a thermal shooting target
Autorzy:
Swiderski, W.
Hłosta, P.
Polak, G.
Tymiński, D.
Powiązania:
https://bibliotekanauki.pl/articles/114252.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
thermal target
infrared
emissivity
shooting
Opis:
The paper presents work on the development of a thermal target providing for shooting with the use of night-vision and thermovision sights in night conditions as well as during the day, without changing the target. The image of the target in the night sight is visible by illuminating it through an IR lamp. The target is designed so that the reflected IR stream is directed towards the objective lens. Compared to existing solutions, the new thermal target has a number of advantages, such as it does not require long-time heating and is immediately ready to operate after thermal lamp lighting, significantly reducing energy consumption. The project is currently at the stage of prototype target testing.
Źródło:
Measurement Automation Monitoring; 2017, 63, 4; 158-161
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Target preparation of RbCl on a copper substrate by sedimentation method for the cyclotron production of no-carrier-added 85Sr for endotherapy
Autorzy:
Sadeghi, M.
Alipoor, Z.
Kakavand, T.
Powiązania:
https://bibliotekanauki.pl/articles/148632.pdf
Data publikacji:
2010
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
rubidium chloride
target
sedimentation
radionuclide
Opis:
85Sr was produced via the 85Rb(p,n)85Sr reaction. Rubidium chloride deposition on copper substrate was carried out via the sedimentation method in order to produce strontium-85. Optimum conditions were achieved as a result of several repeated experiments with different amount of ethyl cellulose (EC) and acetone. 520 mg of RbCl, 208 mg of EC 4 mL of acetone were used to prepare a layer of enriched rubidium chloride of 11.69 cm2 area and 62.2 mg/cm2 thickness. Target quality control was done by a SEM photomicrograph and a thermal shock test. The deposited target was irradiated at a 20 ěA current and a 15 MeV proton beam for 30 min. No degradation was observed. The RbCl surface following bombardment was white, except the central area that was light brown and also without any crack or peeling off.
Źródło:
Nukleonika; 2010, 55, 3; 303-306
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Impact of Economic Sanctions on Corruption in Target Countries: A Cross Country Study
Autorzy:
Kamali, Tahereh
Mashayekh, Maryam
Jandaghi, Gholamreza
Powiązania:
https://bibliotekanauki.pl/articles/1192158.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Corruption
economic sanctions
target countries
Opis:
Using a sample of 73 sanctioned and 60 non-sanctioned countries, as well as corruption data spanning the years 1995 to 2012, we attempt to find a relationship between economic sanctions and corruption in target countries . Our findings suggest that countries that have undergone economic sanctions appear to be more corrupt than non-sanctioned countries. We also find that comprehensive economic sanctions tend to generate more corruption than partial sanctions. In this study, we run a regression to determine a linear relationship between corruption as the dependent variable and a number of independent variables, to include economic sanctions, the origin of legal system, the percentage of Protestant population, democracy, and economic development.
Źródło:
World Scientific News; 2016, 45, 2; 276-291
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the bombers’ tactics and the consequences of a series of terrorist attacks in Brussels (22 March 2016)
Autorzy:
WOJTASIK, KAROLINA
Powiązania:
https://bibliotekanauki.pl/articles/1798779.pdf
Data publikacji:
2021-04-21
Wydawca:
Wyższa Szkoła Policji w Szczytnie
Tematy:
terrorist attack
ISIS
hard target
soft target
tactics
attack in Brussels
foreign terrorist fighters
TATP
Opis:
The purpose of the article is to analyse the modus operandi of the terrorists who on 22 March 2016 organised the bomb attacks in Brussels. The article characterises the targets of the attackers, analyses their operational tactics and the aftermath of their attacks. In addition, the consequences of the attacks are discussed – both economic and legal. Another issue analysed in the article is the perpetrators of the assassinations – their origin, path of radicalisation and network of contacts. The summary shows why returning foreign terrorist fighters are a threat to security in the EU countries, including Poland.
Źródło:
Przegląd Policyjny; 2020, 140(4); 135-153
0867-5708
Pojawia się w:
Przegląd Policyjny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electromagnetic pulses produced by expanding laser - produced Au plasma
Autorzy:
De Marco, M.
Cikhardt, J.
Krása, J.
Velyhan, A.
Pfeifer, M.
Krouský, E.
Klír, D.
Řezáč, D.
Limpouch, J.
Margarone, D.
Ullschmied, J.
Powiązania:
https://bibliotekanauki.pl/articles/147922.pdf
Data publikacji:
2015
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
laser-produced plasma
electromagnetic pulse (EMP)
return target current
Moebius loop antenna
inductive target probe
Opis:
The interaction of an intense laser pulse with a solid target produces large number of fast free electrons. This emission gives rise to two distinct sources of the electromagnetic pulse (EMP): the pulsed return current through the holder of the target and the out flow of electrons into the vacuum. A relation between the characteristics of laser-produced plasma, the target return current and the EMP emission are presented in the case of a massive Au target irradiated with the intensity of up to 3 × 1016 W/cm2. The emission of the EMP was recorded using a 12 cm diameter Moebius loop antennas, and the target return current was measured using a new type of inductive target probe (T-probe). The simultaneous use of the inductive target probe and the Moebius loop antenna represents a new useful way of diagnosing the laser–matter interaction, which was employed to distinguish between laser-generated ion sources driven by low and high contrast laser pulses.
Źródło:
Nukleonika; 2015, 60, 2; 239-243
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 264

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