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Tytuł:
The KM Times They Are A-Changin’
Autorzy:
Handzic, Meliha
Powiązania:
https://bibliotekanauki.pl/articles/475044.pdf
Data publikacji:
2017
Wydawca:
Fundacja Upowszechniająca Wiedzę i Naukę Cognitione
Tematy:
knowledge management
KM
KM development
KM past
KM future
Opis:
This paper traces the changes in the development of the field of knowledge management (KM) over time, through a review of the representative literature and the author’s own research. The paper starts by going back to the origins of KM and reflects on three significant evolutionary stages termed fragmentation, integration and fusion. Following these reflections on the KM past, the paper speculates on the possible KM future. It identifies three emerging trends named extension, specialization and reconceptualization that point to several possible KM futures. The first two involve decentralisation and regeneration of prior KM interpretations, while the third trend signals a revolutionary next KM generation. Irrespective of the direction it may take, the evidence presented in this paper suggests that KM has a future, although it may not be without challenges.
Źródło:
Journal of Entrepreneurship, Management and Innovation; 2017, 13, 3; 7-28
2299-7075
2299-7326
Pojawia się w:
Journal of Entrepreneurship, Management and Innovation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spark Plasma Sintering of Translucent Dy-Y Doped α -SiAlON: Study of Sintering Parameters Influence on the Optical Properties by Using Taguchi Method
Autorzy:
Avcioglu, S.
Kurama, S.
Powiązania:
https://bibliotekanauki.pl/articles/1033401.pdf
Data publikacji:
2017-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.70.Km
42.70.-a
Opis:
The Taguchi approach was applied to optimize optical properties of Dy-Y doped α-SiAlON ceramics produced by spark plasma sintering technique. L'16 experimental design was formed according to orthogonal array. Four different levels were used for each parameter (sintering temperature, holding time, pressure and heating rate). After sintering, the densities of the SiAlON ceramics were measured by the Archimedes method in distilled water. The infrared transmittance behavior was investigated in a wave number range of between 4000 and 1000 cm¯¹ using the Fourier transform infrared. The microstructure characterizations of the samples were carried out using scanning electron microscopy. Optimal sintering conditions were determined by calculated standard analysis. "Higher-is-better" approach was followed to calculate standard analysis. The influences of the sintering parameters on the optical properties and densification of Dy-Y doped α-SiAlON have been analyzed using analysis of variance. It has been concluded that the sintering temperature had greater influence on the density and transparency of Dy-Y doped α-SiAlON ceramics than holding time, pressure and heating rate. Rising sintering temperature to 1850 from 1650°C, at 20 kN pressure with 90 s holding time and 50°C/min heating rate improved the infrared transmittance 49.32% for 0.3 mm sample thickness but higher sintering temperature than 1850°C decreased the transparency of the products.
Źródło:
Acta Physica Polonica A; 2017, 131, 1; 174-177
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
KNOWLEDGE MANAGEMENT PRACTICES IN TURKISH SMES: A DESCRIPTIVE STUDY
Autorzy:
İpçioğlu, İsa
Çelik, Hakan
Powiązania:
https://bibliotekanauki.pl/articles/450564.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Gdański. Wydawnictwo Uniwersytetu Gdańskiego
Tematy:
Turkey
SMEs
Knowledge
Knowledge Management (KM)
Opis:
Recently, Knowledge Management (KM) has gained incredible attention in business world because of the rising importance of knowledge as a competitive power and strategic resource. However, Small and Medium Size Enterprises (SMEs) have faced some challenges about the employment of Knowledge Management (KM) practices. The principal objective of this study is to explore the regarded challenges of Turkish SMEs to implement as well as their perceptions about KM. It is also aimed to determine KM infrastructure Turkish SMEs that is necessary for them. The findings of this research show that Turkish SMEs are aware of the impact of knowledge in their business performances. However, the majority of them do not still have KM program and have not completed KM infrastructure that is necessary to manage knowledge systematically and effectively.
Źródło:
International Journal of Emerging and Transition Economies (IJETE); 2008, 1, 1; 107-126
1308-2701
Pojawia się w:
International Journal of Emerging and Transition Economies (IJETE)
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Knowledge Management in Software Testing: A Systematic Snowball Literature Review
Autorzy:
Wnuk, K.
Garrepalli, T.
Powiązania:
https://bibliotekanauki.pl/articles/384073.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
KM
software testing
knowledge
systematic literature review
Opis:
Description : Software testing benefits from the usage of Knowledge Management (KM) methods and principles. Thus, there is a need to adopt KM to the software testing core processes and attain the benefits that it provides in terms of cost, quality, etc. Aim : To investigate the usage and implementation of KM for software testing. The major objectives include 1. To identify various software testing aspects that receive more attention while applying KM. 2. To analyse multiple software testing techniques, i.e. test design, test execution and test result analysis and highlight KM involvement in these. 3. To gather challenges faced by industry due to the lack of KM initiatives in software testing. Method : A Systematic Literature Review (SLR) was conducted utilizing the guidelines for snowballing reviews by Wohlin. The identified studies were analysed in relation to their rigor and relevance to assess the quality of the results. Results : The initial resulting set provided 4832 studies. From these, 35 peer-reviewed papers were chosen among which 31 are primary, and 4 are secondary studies. The literature review results indicated nine testing aspects being in focus when applying KM within various adaptation contexts and some benefits from KM application. Several challenges were identified, e.g., improper selection and application of better-suited techniques, a low reuse rate of software testing knowledge, barriers in software testing knowledge transfer, no possibility to quickly achieve the most optimum distribution of human resources during testing, etc. Conclusions : The study brings supporting evidence that the application of KM in software testing is necessary, e.g., to increase test effectiveness, select and apply testing techniques. The study outlines the testing aspects and testing techniques that benefit their users.
Źródło:
e-Informatica Software Engineering Journal; 2018, 12, 1; 51-78
1897-7979
Pojawia się w:
e-Informatica Software Engineering Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chemical Information of Chitosan-Based Complex Extracted from Coincidence Doppler Broadening Spectra
Autorzy:
Cao, Xingzhong
Xia, Rui
Yang, Jing
Zeng, Minfeng
Wang, Baoyi
Yu, Runsheng
Wei, Long
Powiązania:
https://bibliotekanauki.pl/articles/1033908.pdf
Data publikacji:
2017-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.70.Bj
64.70.km
82.30.Gg
Opis:
In recent years, coincidence Doppler broadening (CDB) of annihilation radiation measurement on polymeric system has been attracting special attention because of its unique elemental sensitivities in comparison to the traditional Doppler broadening measurement. In the present study, chitosan-Fe₃O₄ nanocomposite (CS-Fe₃O₄) and copper-chitosan (Cu-CS) complexes were prepared through a simple casting method from aqueous solution. The inclusion of Fe₃O₄ nanoparticles in the chitosan matrix is confirmed by X-ray diffraction. In order to obtain data about atomic composition of the annihilation site in the CS composites, CDB measurements were carried out. The normalized CDB ratio curve, which is related to the ratio between the momentum density distribution for the studied samples and pure CS, was displayed to illustrate the variation of ion cores of different elements present in the chitosan matrix. Our result confirms a contribution of active group available in chitosan molecules to the features in the high-momentum region of the CDB ratio curve. The findings show that the local chemical environment of the annihilation site in chitosan-based complexes could be estimated by such positron annihilation spectroscopic investigation.
Źródło:
Acta Physica Polonica A; 2017, 132, 5; 1535-1537
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electron Diffraction Tomography and Dynamical Refinement for Crystal-Structure Characterization of Nanocrystalline Materials
Autorzy:
Corrêa, C.
Klementová, M.
Palatinus, L.
Powiązania:
https://bibliotekanauki.pl/articles/1402113.pdf
Data publikacji:
2015-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.05.J-
61.66.-f
61.46.Km
Opis:
Three-dimensional electron diffraction tomography allows one to obtain structure information from nanocrystals. However, in order to get accurate results the dynamical theory must be used due to the strong dynamical interaction between electrons and matter. Full structure refinement using dynamical theory has been in use for some time, in spite of being hampered by the fact that the intensities are very sensitive to variations of thickness and of the orientation of the sample. A remedy to this problem is the technique called precession electron diffraction. The use of precession electron diffraction in combination with electron diffraction tomography results in more accurate structure parameters and lower figures of merit in the structure refinement. The principles of electron diffraction tomography, precession electron diffraction and dynamical refinement will be demonstrated on the structural analysis of a nanowire of Ni₃Si₂.
Źródło:
Acta Physica Polonica A; 2015, 128, 4; 651-653
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diffraction from $WS_2$ and MoS_2 Nanotubes
Autorzy:
Damnjanović, M.
Vuković, T.
Milošević, I.
Powiązania:
https://bibliotekanauki.pl/articles/1503023.pdf
Data publikacji:
2011-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.46.Km
78.67.Ch
68.37.Yz
Opis:
We present a symmetry based analysis of diffraction intensities of transition metal dichalcogenide nanotubes. Obtained results point out specific features of the intensity distribution that are related to group parameters. It is possible to read out all the group parameters from diffraction patterns, and therefore to characterize nanotube, since symmetry group uniquely determines the chiralty indices.
Źródło:
Acta Physica Polonica A; 2011, 120, 2; 224-226
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Comprehensive Framework of Design Thinking Approach in Knowledge Management: A Review in Academic Context
Autorzy:
Mostofa, Sk Mamun
Othman, Roslina
Mukherjee, Debarshi
Hasan, Khandakar Kamrul
Powiązania:
https://bibliotekanauki.pl/articles/628331.pdf
Data publikacji:
2020
Wydawca:
Fundacja Pro Scientia Publica
Tematy:
KM, DT, design knowledge, knowledge sharing, educational institutions, design systems.
Opis:
Aim of research. Design thinking (DT) is an essential context for knowledge management (KM), as it promotes the link between KM initiatives and an organization's strategic goals and objectives. This article analyzes the DT process in terms of its capability to create KM. The detailed analysis on the aspect of the working mechanism of DT – how KM is represented and created in the process. This article examines the DT procedure in terms of its ability to generate design knowledge. In this regard, the main purpose of this paper is to review the approaches to KM applied to DT and to suggest directions for how such a supervisory system could evolve. Methodology. This study is thematic in its nature and it was prepared on the basis of secondary data and also based on an inclusive review of the literature and similarly computation of secondary information. To formulate this paper the researchers used books, earlier published articles, conference papers, and numerous research reports. Results and conclusions. This article concludes by proposing an intuitive model for DT and KM. KM for its successful application in higher learning institutions in the areas of course design institutional strategy formation and faculty resource sharing.
Źródło:
Journal of Education Culture and Society; 2020, 11, 2; 281-294
2081-1640
Pojawia się w:
Journal of Education Culture and Society
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of dye type on montmorillonite-supported Pr-doped TiO₂ composite photocatalsyt
Autorzy:
Otsukarci, B.
Kalpakli, Y.
Powiązania:
https://bibliotekanauki.pl/articles/1070473.pdf
Data publikacji:
2016-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.16.Hc
87.64.K
87.64.km
Opis:
Scarcity of water in today's world has led to scientific researches for finding smarter ways of discharging and re-using water located in the seas and lakes. That is how advanced oxidation technologies have emerged as one of the new discharging techniques to keep water sources clean. In our method we have synthesized praseodymium (Pr) doped TiO₂-Montmorillonite composite photocatalyst by using acid sol-gel method. Pr, in the group of rare earth metals, is known for its ability to form Lewis bases in order to break down aldehydes, amines, etc., by decreasing the crystal size and consequently increasing the surface area. We have used the mineral form of the bentonite clay (montmorillonite) to increase the surface area of our composite photocatalyst. Two types of azo dyes which are commercially known as Basic Yellow 28 (BY 28) and Basic Blue 41 (BB 41) were used in experimants. These dyes are composed of different chemical structures: BY 28 is known as azomethine dye (-CH=N-), whereas BB 41 has one azo bond (-N=N-). The initial model dye concentrations were 100 ppm. Amount of 1.0 g/l of photocatalyst was used throughout the experiments. In order to evaluate degradation efficiency results, the dissolved organic carbon analyzer was used. We have found the optimum dark adsorption time to be under 15 minutes. By stirring under 15 minutes in the dark we have achieved efficiency of 52.50% for BY 28 and 66.74% for BB 41. On the other hand, by stirring under UV-A light irradiation for two hours we have achieved the overall degradation efficiency of 86.30% for BY 28 and 92.39% for BB 41. Our results show that higher adsorption and overall efficiencies were observed in BB 41 than in BY 28. Moreover, according to Water Pollution Control Regulations, the chemical oxygen demand limitations for textile industry are between 200-400 mg/l. To evaluate the degradation characteristics of Pr-doped TiO₂-Montmorillonite composite, the change of chemical oxygen demand values with time for 100 mg/l of BY 28 and BB 41 were investigated. The obtained chemical oxygen demand values were 60.5 and 34.8 mg O₂/l after 2 hours of oxidation processes for BY 28 and BB 41. As it can be seen from the results, obtained values are below the limitations.
Źródło:
Acta Physica Polonica A; 2016, 130, 1; 198-201
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structural and Optical Characterization of GaN/AlGaN Single Quantum Disk Nanorods
Autorzy:
Almokhtar, M.
Emura, S.
Tambo, H.
Hasegawa, S.
Asahi, H.
Powiązania:
https://bibliotekanauki.pl/articles/1400040.pdf
Data publikacji:
2013-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.46.Km
78.67.De
81.07.Vb
Opis:
GaN/AlGaN single quantum disks on GaN nanorods were grown on Si (001) substrate with native $SiO_2$ layer by a plasma-assisted molecular-beam epitaxy under nitrogen-rich conditions. The transmission electron microscopy observations show single GaN nanorods images with an average thickness of 4 nm for the GaN single quantum disk and nanorod diameter of 15 nm. The observed photoluminescence spectra at 8 K show a peak at 3.475 eV, attributed to an exciton recombination in GaN. A strong peak was observed at 3.542 eV. This peak is attributed to the quantum confinement of excitons in the GaN quantum disks.
Źródło:
Acta Physica Polonica A; 2013, 123, 2; 473-475
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chemical Composition of Atherosclerotic Plaques οf apoE/LDLR-Double Knockout Mice by Synchrotron Radiation FTIR Microspectroscopy
Autorzy:
Kowalska, J.
Gajda, M.
Kwiatek, W.
Franczyk-Żarów, M.
Kostogrys, R.
Chłopicki, S.
Sandt, C.
Dumas, P.
Powiązania:
https://bibliotekanauki.pl/articles/1490259.pdf
Data publikacji:
2012-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.19.xr
87.64.km
87.64.-t
Opis:
Atherosclerosis is a multietiological inflammatory disease of large and medium-sized arteries of increasing incidence in westernized countries. The aim of this study was to identify the biochemical changes during the progression of atherosclerosis by synchrotron radiation Fourier transform infrared microspectroscopy in atheromas of apoE/$LDLR^{-//-}$ mice fed egg-rich diet supplemented or not with angiotensin converting enzyme inhibitor perindopril. Synchrotron radiation Fourier transform infrared microspectroscopy technique was used to obtain information at high spatial resolution about the distribution of proteins (C-N, N-H, CO for amide I and amide II bands), lipids ($CH_2$, $CH_3$ bands) as well as mineral deposits (calcium carbonates and phosphates). Total contents of lipids and proteins were found to be significantly lower in animals treated with the diet and perindopril. An increase in saturation level of lipids was observed in animals fed with egg-rich diet when compared to the normal diet and perindopril treatment, which did not inhibit this effect. Moreover, a significant change in the secondary structure of proteins (ratio between absorption bands 1634 $cm^{-1}$/1656 $cm^{-1}$ attributed to β-type and α-type, respectively) was observed in both experimental groups in comparison with the control. Principal component analysis was used to analyse the recorded spectra. It has revealed that higher content of phosphates (wavenumber range 950-1020 $cm^{-1}$) was observed between egg-rich diet fed animals and the control group.
Źródło:
Acta Physica Polonica A; 2012, 121, 2; 555-560
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Properties of GaN Nanocolumns Grown by Plasma - Assisted MBE on Si (111) Substrates
Autorzy:
Zytkiewicz, Z.
Dluzewski, P.
Borysiuk, J.
Sobanska, M.
Klosek, K.
Witkowski, B.
Setkiewicz, M.
Pustelny, T.
Powiązania:
https://bibliotekanauki.pl/articles/1492480.pdf
Data publikacji:
2011-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.15.Hi
81.05.Dz
61.46.Km
Opis:
We report on growth of GaN nanocolumns by plasma assisted MBE on (111) silicon substrates and on their characterization. The nanocolumns nucleate on the substrate spontaneously without use of any catalyst, probably by the Volmer-Weber mechanism. Transmission electron microscopy analysis shows high crystalline quality of GaN nanocolumns and their good alignment with the c-axis being perpendicular to the substrate. Preliminary results on use of GaN nanocolumns in gas sensor devices are presented.
Źródło:
Acta Physica Polonica A; 2011, 120, 6A; A-015-A-016
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anisotropic Magnetoresistance of Ni Nanorod Arrays in Porous SiO₂/Si Templates Manufactured by Swift Heavy Ion-Induced Modification
Autorzy:
Fedotova, J.
Ivanou, D.
Mazanik, A.
Svito, I.
Streltsov, E.
Saad, A.
Zukowski, P.
Fedotov, A.
Bury, P.
Apel, P.
Powiązania:
https://bibliotekanauki.pl/articles/1402223.pdf
Data publikacji:
2015-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.46.Km
81.15.Jj
75.47.De
Opis:
In this work anisotropic magnetoresistance in nanogranular Ni films and Ni nanorods on Si(100) wafer substrates was studied in wide ranges of temperature and magnetic field. To produce Ni films and nanorods we used electrochemical deposition of Ni clusters either directly on the Si substrate or into pores in SiO₂ layer on the Si substrate. To produce mesopores in SiO₂ layer, SiO₂/Si template was irradiated by a scanned beam of swift heavy 350 MeV ¹⁹⁷Au²⁶⁺ ions with a fluence of 5×10⁸ cm¯² and then chemically etched in diluted hydrofluoric acid. Pores, randomly distributed in the template have diameters of 100-250 nm and heights about 400-500 nm. Comparison of temperature dependences of resistance and magnetoresistance in Ni films and n-Si/SiO₂/Ni structures with Ni nanorods showed that they are strongly dependent on orientation of magnetic field and current vectors relative to each other and the plane of Si substrate. Moreover, magnetoresistance values in n-Si/SiO₂/Ni nanostructures can be controlled not only by electric field applied along Si substrate but also by additionally applied transversal bias voltage.
Źródło:
Acta Physica Polonica A; 2015, 128, 5; 894-896
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 45

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