Autor: López, O. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Delicated to the crisis management solution Communication Security Monitoring and Control Centre
Rozwiązanie Communication Security Monitoring and Control Centre przeznaczone do zarządzania kryzysowego
Autorzy:: Ros, S.
López, O.
Uriarte, M.
Powiązania:: https://bibliotekanauki.pl/articles/298357.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:: infrastruktura komunikacyjna
ocena ryzyka
mechanizm bezpieczeństwa
model bezpieczeństwa
świadomość sytuacyjna
sterowanie
communication infrastructure
risk assessment
Security Mechanisms
security model
awareness
control
Opis:: An emergency situation often occurs as a result of unpredictable events, and as a consequence, existing communications may either get collapsed or congested. The aim of the Communication Security Monitoring and Control Centre (CSMCC) solution proposed in SECRICOM is to provide a suitable security framework that enables the development of security service. These services give response to individuals and institutions operating in heterogeneous communication infrastructures, when responding to major incidents. In the light of this objective, a Security Model has been designed facilitating the measurement of operators' and end customers' confidence in the security of the communication infrastructure, and addressing security challenges in terms of a distributed and heterogeneous solution. The proposed Security Model has been supported by the Security Middleware Service and Framework, which is responsible for measuring, documenting and maintaining the security level of the services provided by the SECRICOM communication system.
Sytuacje kryzysowe występują zazwyczaj w wyniku nieprzewidzianych wydarzeń, co implikuje problemy z niedostępnością lub przeciążeniem systemu łączności. Zadaniem zaproponowanego w ramach projektu SECRICOM rozwiązania Communication Security Monitoring and Control Centre (CSMCC) jest bezpieczeństwo usług z nim związanych. Usługi te są kierowane do podmiotów obsługujących różnorodne infrastruktury telekomunikacyjne na potrzeby zarządzania kryzysowego. W tym celu opracowano model bezpieczeństwa ułatwiający pomiar bezpieczeństwa infrastruktury komunikacyjnej oraz wspierający rozwiązywanie problemów wynikających z heterogenicznych i rozproszonych rozwiązań. Zaproponowany model jest wspierany przez rozwiązanie Security Middleware Service and Framework, który jest odpowiedzialny za mierzenie, dokumentację oraz utrzymanie poziomu bezpieczeństwa usług oferowanych przez system SECRICOM.
Źródło:: Technical Sciences / University of Warmia and Mazury in Olsztyn; 2012, 15(1); 173-185
1505-4675
2083-4527
Pojawia się w:: Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Seamless communication for crisis management
Ponadsystemowa łączność do zarządzania kryzysowego
Autorzy:: Wojciechowicz, W.
Fournier, J.
Konecny, M.
Vanya, S.
Stoodley, J.
Entwisle, P.
Hein, D. M.
Machalek, A.
Fournaris, A.
Uriarte, M.
Lopez, O.
O'Neill, S.
Bradl, H.
Balogh, Z.
Gatial, E.
Hluchy, L.
Mirosław, T.
Zych, J.
Powiązania:: https://bibliotekanauki.pl/articles/298322.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:: SECRICOM
bezszwowa komunikacja
zarządzanie kryzysowe
Multi Bearer Router
MBR
Push To Talk
PTT
SECRICOM Silentel
Secure Docking Module
SDM
Secure Agent Infrastructure
SAI
Communication Security Monitoring and Control Centre
CSMCC
siódmy program ramowy
7PR
Trusted Computing
seamless communication
crisis management
Push To Talk (PTT)
Seventh Framework Programme
FP7
Opis:: SECRICOM - Seamless Communication for crisis management was a research and development project, realised within the Seventh Framework Programme (7PR). The aim of this project was to develop reference solution based on existing infrastructure, which will be capable to ensure secure and efficient communication for operational crisis management. The project was an answer to the European Security Research Advisory Board (ESRAB) report, in which key requirements for a communication system have been stated. Secure and efficient communication system is a necessity for effective crisis management. It is assumed that such infrastructure may significantly increase rescue actions effectiveness. Currently, however, there are cases when various services (not only domestically but also internationally) use heterogeneous telecommunications systems. It results in the lack of or significant problems with mutual communication. Such situation is often considered problematic and posing a threat to the effective rescue actions. For this purpose, a secure and multi-platform communications system (SECRICOM Silentel) has been developed within SECRICOM project. The Multi Bearer Router (MBR) optimise the backbone network by the use of multiple bearers and dynamic adjustment to various conditions. Advance mechanisms enhancing end-user devices' security - Secure Docking Module (SDM) - have been developed using Trusting Computing principles. Secure Agent Infrastructure (SAI) ensures - based on agents' infrastructure - secure access to distributed data. The system is supplemented with network monitoring platform - Communication Security Monitoring and Control Centre. The SECRICOM project resulted in a communication system prototype, which is capable of ensuring interoperability as well as secure and efficient communication for operational crisis management. This system has been demonstrated on several occasions to the stakeholders.
SECRICOM - Seamless Communication for crisis management to projekt badawczo-rozwojowy, który został zrealizowany w ramach siódmego programu ramowego (7PR). Celem projektu było wypracowanie bezpiecznej i, co ważne, bazującej na istniejącej infrastrukturze platformy komunikacyjnej do operacyjnego zarządzania kryzysowego. Projekt ten stanowi odpowiedź na raport European Security Research Advisory Board (ESRAB), w którym określono najważniejsze wymagania odnośnie do systemu komunikacji. Bezpieczny i wydajny system komunikacji jest warunkiem koniecznym do efektywnego zarządzania w sytuacjach kryzysowych. Przyjmuje się, że taka platforma jest w stanie znacząco zwiększyć efektywność prac służb ratunkowych. Obecnie jednak są przypadki, gdy służby ratunkowe (nie tylko na arenie międzynarodowej, lecz także podczas działań w jednym kraju) korzystają z niejednorodnych systemów telekomunikacyjnych, co często skutkuje brakiem lub istotnymi problemami z wzajemną łącznością. Sytuacja ta jest postrzegana jako problematyczna i stanowi zagrożenie dla efektywnego działania służb ratunkowych. W ramach projektu SECRICOM opracowano system międzyplatformowej, bezpiecznej łączności SECRICOM Silentel. Za optymalizację transmisji danych (w tym wykorzystanie wielu nośnych oraz dynamiczne dostosowywanie się do warunków) w sieci dystrybucyjnej oraz szkieletowej odpowiada Multi Bearer Router (MBR). Zaawansowane mechanizmy zwiększające bezpieczeństwo urządzeń końcowych - Secure Docking Module (SDM) - opracowano z wykorzystaniem pryncypiów Trusted Computing. Secure Agent Infrastructure (SAI) zapewnia - oparty na infrastrukturze agentów - bezpieczny dostęp do rozproszonych danych. System uzupełnia platforma nadzoru nad siecią - Communication Security Monitoring and Control Centre. Jako rezultat projektu zbudowano oraz kilkukrotnie zademonstrowano prototypową wersję systemu komunikacji. System ten jest zdolny do zapewnienia interoperacyjnej, bezpiecznej i wydajnej łączności w zarządzaniu w sytuacjach kryzysowych.
Źródło:: Technical Sciences / University of Warmia and Mazury in Olsztyn; 2012, 15(1); 65-79
1505-4675
2083-4527
Pojawia się w:: Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: From Light to Heavy Nuclear Systems, Production and Decay of Fragments Studied with Powerful Arrays
Autorzy:: Casini, G.
Morelli, L.
Barlini, S.
Piantelli, S.
D'Agostino, M.
Baiocco, G.
Marchi, T.
Abbondanno, U.
Ademard, G.
Appannababu, S.
Bini, M.
Bonnet, E.
Borderie, B.
Bougault, R.
Bruno, M.
Chbihi, A.
Cinausero, M.
Degerlier, M.
Fabris, D.
Frankland, J.
Gelli, N.
Gramegna, F.
Gruyer, D.
Gulminelli, F.
Kordyasz, A.
Kozik, T.
Kravchuk, V.
Kulig, P.
Le Neindre, N.
Lopez, O.
Maurenzig, P.
Olmi, A.
Pasquali, G.
Pârlog, M.
Poggi, G.
Rivet, M.
Rosato, E.
Sosin, Z.
Spadaccini, G.
Stefanini, A.
Twarog, T.
Valdrè, S.
Vient, E.
Raduta, A.
Powiązania:: https://bibliotekanauki.pl/articles/1402639.pdf
Data publikacji:: 2015-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 25.70.Gh
25.70.Pq
25.70.Mn
29.40.-n
Opis:: Reactions between heavy-ions at various energy regimes produce many nuclear fragments which can be populated in highly excited states. The study of these fragments, detected at the end of their particle decay, is important to investigate nuclear forces and structure effects. In recent years there have been many efforts to extend these studies towards the drip-lines, i.e. to systems far from the β-stability valley, by using accelerated radioactive beams. The development of such infrastructures is accompanied by the development of more powerful detectors and associated electronics, capable to identify ions with very different sizes and kinetic energies. Here we give two examples which show how advanced arrays can contribute to the studies on nuclear phenomena. The examples come from the European FAZIA collaboration and from recent campaigns with the GARFIELD apparatus, the latter in operation at the INFN Legnaro Laboratory (Italy) where the SPES RIB facility is under construction.
Źródło:: Acta Physica Polonica A; 2015, 127, 5; 1548-1551
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Experimental and Theoretical Study of Zircon and Scheelite Phases of $DyVO_4$
Autorzy:: Ermakova, O.
Paszkowicz, W.
López-Solano, J.
Muñoz, A.
Dabkowska, H.
Powiązania:: https://bibliotekanauki.pl/articles/1431671.pdf
Data publikacji:: 2012-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.70.Hj
61.43.Bn
61.66.Fn
Opis:: Polycrystalline zircon-type dysprosium orthovanadate, $DyVO_4,$ prepared from a single crystal grown by slow cooling from $PbO//PbF_2$ flux, was studied by X-ray diffraction. Rietveld refinement provided the following unit cell size and oxygen atom coordinates: a=7.14811(4) Å; c=6.30825(4) Å, V=322.323(3) Å3, y($O^{2-}$)=0.4300(4); z($O^{2-}$)=0.2082(4) which are of a particularly high accuracy and show consistency with earlier reported values. Density functional theory calculations within the generalized gradient approximation for the exchange-correlation energy were also performed, providing values of structure parameters which differ by less than 2% from the experimental ones. The agreement between theory and experiment demonstrates the value of these calculations for understanding the structure of compounds of $RVO_4$ family. In addition, density functional theory calculations were performed for the scheelite-type $DyVO_4$; also for this polymorph the discrepancy with the only known set of lattice parameters is less than 2%. Values of oxygen atom coordinates have not been reported yet for this polymorph; here, the calculated ones are quoted.
Źródło:: Acta Physica Polonica A; 2012, 121, 4; 920-927
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Low seroprevalence of Trypanosoma cruzi infection and chronic chagasic cardiomyopathy in a region with abundance of triatomine vectors in Yucatan Peninsula of Mexico
Autorzy:: Monteon, V.
Solis-Oviedo, R.
Lopez, R.
Hernandez, O.
Tellez, C.A.
Powiązania:: https://bibliotekanauki.pl/articles/5865.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: seroprevalence
Trypanosoma cruzi
parasitic infection
chronic Chagas cardiomyopathy
Chagas disease
triatomine vector
Yucatan Peninsula
Mexico
Opis:: The Yucatan Peninsula of Mexico is endemic with Chagas disease. The main vector responsible for Trypanosoma cruzi transmission is Triatoma dimidiata which is abundant in domestic, peridomestic and sylvan cycles. The abundance of vectors favours T. cruzi transmission and is a high risk for developing chronic chagasic cardiomyopathy (CCC). In the past 10 years, little information was available on parasite seroprevalence and the prevalence of CCC in the Yucatan Peninsula. In the present work, we studied two Mayan communities with a high abundance of T. dimidiata and a random serial sample of 233 patients with an altered electrocardiogram or cardiac failure admitted to the Regional Hospital. A homemade enzyme-linked immunosorbent assay and indirect immunofluorescence standardized techniques were used to detect anti-T. cruzi IgG. In addition, Mayan volunteers were monitored by electrocardiography. In the Mayan communities, 4.8% (3/63) subjects were positive for T. cruzi antibodies none of them presented electrocardiographic alterations, however in seronegative subjects were detected right or left ventricle hypertrophy in 25% (16/63). A remarkable finding was that 90% of the Mayan population recognized the vector and 65% of them had experienced contact with triatomines bites. At the Regional Hospital 0.42% (1/233) were positive for T. cruzi antibodies showing compatible diagnosis with CCC; the most frequent pathology in this population was hypertension in 65% (151/233) and the less frequent was dilated myocardiopathy 6% (14/233). In conclusion, the prevalence of T. cruzi infection and CCC can be considered low in Yucatan, Mexico.
Źródło:: Annals of Parasitology; 2015, 61, 4
0043-5163
Pojawia się w:: Annals of Parasitology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Hydrogen Assisted Cracking in a Microalloyed Steel Subjected to a Rapid Thermal Cycle at High Temperature
Autorzy:: Lopez-Martinez, E.
Vázquez-Gómez, O.
Vergara-Hernández, H. J.
Campillo, B.
Powiązania:: https://bibliotekanauki.pl/articles/352035.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: persistent slip mark
fatigue crack growth
hydrogen enhanced local plasticity
microalloyed steel
Opis:: In a martensitic-bainitic microalloyed steel, the effect of hydrogen on fatigue crack growth was studied using rotary bending fatigue tests. The steel was subjected to a rapid thermal cycle to get a microstructure similar to that which would be formed within the coarse-grained heat-affected zone of a weld. Crack growth was monitored as a function of the number of cycles applied during fatigue tests on three types of specimens: 1) those without hydrogen charge, 2) those charged with hydrogen and 3) those charged with hydrogen which was then discharged through low-temperature heat treatment. All types showed persistent slip marks, and cracks propagated along high-shear-stress planes. In the presence of hydrogen, crack growth was affected by microstructural defects caused by the hydrogen charging process, and the persistent slip marks developed in an area closer to the crack tip and crack path. On the contrary, without hydrogen, crack growth occurred perpendicular to the applied force, and the persistent slip marks were fewer in number and further from the crack tip and crack path. This indicates that the plasticity increased (i.e., the damage that occurred in the presence of hydrogen matched the hydrogen-enhanced local plasticity mechanism).
Źródło:: Archives of Metallurgy and Materials; 2018, 63, 1; 315-321
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Effect of the soil water content on Jatropha seedlings in a tropical climate
Autorzy:: Perez-Vazquez, A.
Hernandez-Salinas, G.
Avila-Resendiz, C.
Valdes-Rodriguez, O.A.
Gallardo-Lopez, F.
Garcia-Perez, E.
Ruiz-Rosado, O.
Powiązania:: https://bibliotekanauki.pl/articles/25415.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Opis:: The purpose of this study was to evaluate growth, chlorophyll content, and photosynthesis in Jatropha at different levels of soil moisture. Plants were cultivated in containers and the treatments of the soil water content evaluated were: 0% (without watering), 20, 40, 60, and 80% soil water content. Plant height was statistically similar for all treatments, but the number of leaves differed significantly. Total dry matter and chlorophyll at 40, 60, and 80% soil water content were statistically similar, but different from 0 and 20% soil water content. Leaf area at 40, 60, and 80% soil water content was statistically different from 0 and 20% soil water content. The photosynthetic rate, transpiration and stomatal conductance at 60 and 80% soil water content were statistically similar but different from 0 and 20% soil water content. Water stress affected growth, chlorophyll content, photosynthetic rate, transpiration, and stomatal conductance.
Źródło:: International Agrophysics; 2013, 27, 3
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Engine diagnosis based on vibration analysis using different fuel blends
Autorzy:: Grajales, J. A.
Quintero, H. F.
López, J. F.
Romero, C. A.
Henao, E.
Cardona, O.
Powiązania:: https://bibliotekanauki.pl/articles/328420.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:: engine diagnosis
vibration analysis
frequency analysis
diagnostyka silnika
analiza drgań
analiza częstotliwościowa
Opis:: Fault diagnosis of an internal combustion engine is proposed herein by means of vibration analysis and a comparative analysis of normal operation and induced misfire scenarios. In order to validate previous works on misfire with pure gasoline, measurements also included tests performed with ethanol-gasoline fuel blends. According to results, changes in the fuel mix seem to have little impact on the performance and behaviour of the engine. And additionally, the particular frequency components that allowed differentiation between normal and faulty conditions were also present on all the fuel blends tested. Fast Fourier Transform was applied to obtain the frequency domain of the signal as a previous step to the subsequent identification process based on statistical characteristics extraction. A fuel blend classification method based on the analysis of the vibration signals of the engine was studied using envelope, Spike Energy and Peak Value techniques. Differentiation was possible with the extraction of the statistical features of the Peak Value spectrum of the longitudinal acceleration with a specific filter selection.
Źródło:: Diagnostyka; 2017, 18, 4; 27-36
1641-6414
2449-5220
Pojawia się w:: Diagnostyka
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Phenolic plant extract enrichment of enzymatically mineralized hydrogels
Autorzy:: Douglas, Timothy E.L
Lopez-Heredia, Marco A.
Pułczyńska, Aleksandra
Łapa, Agata
Pietryga, Krzysztof
Schaubroeck, David
Santos, Sónia A.O.
Pais, Adriana
Brackman, Gilles
Schamphelaere, Karel de
Samal, Sangram Keshari
Keppler, Julia K.
Bauer, Jonas L
Chai, Feng
Blanchemain, Nicolas
Coenye, Tom
Pamuła, Elżbieta
Skirtach, Andre G
Powiązania:: https://bibliotekanauki.pl/articles/284057.pdf
Data publikacji:: 2019
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:: hydrogel
mineralization
polyphenols
antibacterial
epigallocatechin gallate
gellan gum
Opis:: Hydrogel mineralization with calcium phosphate (CaP) and antibacterial activity are desirable for applications in bone regeneration. Mineralization with CaP can be induced using the enzyme alkaline phosphatase (ALP), responsible for CaP formation in bone tissue. Incorporation of polyphenols, plant-derived bactericidal molecules, was hypothesized to provide antibacterial activity and enhance ALP-induced mineralization. Three phenolic rich plant extracts from: (i) green tea, rich in epigallocatechin gallate (EGCG) (herafter referred to as EGCG-rich extract); (ii) pine bark and (iii) rosemary were added to gellan gum (GG) hydrogels and subsequently mineralized using ALP. The phenolic composition of the three extracts used were analyzed by ultra-high-performance liquid chromatography coupled to tandem mass spectrometry (UHPLC-MSn). EGCG-rich extract showed the highest content of phenolic compounds and promoted the highest CaP formation as corroborated by dry mass percentage meassurements and ICP-OES de-termination of mass of elemental Ca and P. All three extracts alone exhibited antibacterial activity in the following order EGCG-rich > PI > RO, respectively. However, extract-loaded and mineralized GG hydro-gels did not exhibit appreciable antibacterial activity by diffusion test. In conclusion, only the EGCG-rich extract promotes ALP-mediated mineralization.
Źródło:: Engineering of Biomaterials; 2019, 22, 149; 2-9
1429-7248
Pojawia się w:: Engineering of Biomaterials
Dostawca treści:: Biblioteka Nauki