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Tytuł:
20 Years of the Agile Manifesto: A Literature Review on Agile Project Management
Autorzy:
Pacagnella Junior, Antonio Carlos
Da Silva, Vinicius Romeiro
Powiązania:
https://bibliotekanauki.pl/articles/24200506.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
agile project management
systematic review
bibliometric analysis
PRISMA
literature review
Opis:
Agile Project Management is a topic that has become popular both in business and academia, since the publication of the Agile Manifesto - a historic landmark in this subject. In the next 20 years, there was a relevant scientific production that must be analyzed to provoke reflection about the knowledge built up in this period. In this sense, this study aims to analyze the relevant scientific literature on Agile Project Management through a systematic review and a bibliometric analysis of articles published in scientific journals with Digital Object Identifier, in English, from the Web of Science and Scopus databases, from 2001 to 2021. The research results enable us to gain insights into the characteristics of this knowledge domain, regarding its volume and evolutionary trend, main contributors (i.e. scientific journals, authors, and their affiliations), main studies, methods used, and its central thematic axes.
Źródło:
Management and Production Engineering Review; 2023, 14, 2; 37--48
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Social Network Approach to the Dual Aspect of Moral Competence
Autorzy:
Salej Higgins, Silvio
Vega Sanabria, Guillermo
Unger Raphael Bataglia, Patrícia
Fontenele Gonçalves, Erick
Ferreira da Silva Carmo, Lavínia
Powiązania:
https://bibliotekanauki.pl/articles/29433355.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
Moral competence
cognition
emotion
social networks analysis
MCT-xt
Opis:
This work presents evidence supporting the relationship between the dual aspect of moral competence (emotion and cognition) and social networks in school settings. We conducted empirical research with 160 students from various disciplines of the social sciences and different cohorts in two Brazilian public universities. Firstly, the participants responded to Georg Lind’s Moral Competence Test (MCT-xt). Following this, a sociometric generator regarding relationships of friendship and collaboration in social networks was applied, and several Exponential Random Graphs Models (ERGMs), with the MCT-xt score as an exogenous effect and predictor of these relationships, were utilized. We also used a Crisp-Set Qualitative Comparative Analysis in order to determine if the cohorts, where the average MCT-xt was associated with the interactional structure, obeyed the same causal configuration. There exist two conditional configurations: (1) a sufficient score of MCT-xt in a social network with homogeneous status encourages a proactive search of collaboration; (2) an insufficient score of MCT-xt in a social network with homogeneous status encourages a collaborative exchange based on the popularity of some individuals. This work reveals how to interpret, at the grouping level, the results of MCT-xt.
Źródło:
Ethics in Progress; 2023, 14, 1; 144-168
2084-9257
Pojawia się w:
Ethics in Progress
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the effects of recycling on process control
Autorzy:
Silva, Cássio R.A.
Panuci, Victor C.
Coutinho, Monica R.
Conceição, Wagner A.S.
Andrade, Cid M.G.
Powiązania:
https://bibliotekanauki.pl/articles/27315644.pdf
Data publikacji:
2023
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
level control
control structure
decoupled tanks
cycle
Arduino
Opis:
The union of different devices in order to obtain a specific response for a process is commonly called a control system. For a control system, it is necessary to have one or more controllers. Among the most used in the industrial sector are the PID and PI controllers. Next to these controllers is the control software. Scilab is a good example of control software. It is characterized as free code software, with no cost for its acquisition, in addition to having a large computational power and integrated tools, such as Xcos, intended for modeling and simulation. For the union with Scilab, there is Arduino. Such a mixture can be used, for example, to control liquid levels in tanks. In this context, the present work aims to study the tank-level control system based on PID and PI controllers through the union between Scilab and Arduino. Phenomenological models were developed based on closed-loop control (feedback control system) of the process with two tanks not coupled with recycle. Furthermore, for comparison purposes, two approaches were used for each process: one considering the saturation of the manipulated variable and the other without the presence of such saturation. At first, there was a need to implement an anti-windup system. For tuning the controller parameters, the ISE method was used, executed through a programming code developed in Scilab. The parameters found for the two systems were tested on a made-up experimental bench. Therefore, using the block diagrams and the method here called “ISE method”, satisfactory values were obtained for the control parameters. These were ratified in the tests carried out in the experimental module. Level control was achieved with greater prominence for the PI controller since there is one less parameter to be tuned and processed by the system. This controller provided results close to the PID controller for cycles up to 50%. In general, the PI controller showed maximum response deviations smaller than the PID, such as deviations of 1.55 cm and 2.40 cm, respectively, for the case with 75% recycle. It was also clear the influence of the saturation of the manipulated variable on the system response, but not on the tuning of the controller parameterseters.
Źródło:
Polish Journal of Chemical Technology; 2023, 25, 2; 43--55
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Can a tank 'umbrella' protect the turret of a main battle tank?
Czy czołgowy „parasol” może chronić wieżę czołgu podstawowego?
Autorzy:
Teixeira da Silva, Jaime A.
Powiązania:
https://bibliotekanauki.pl/articles/29521128.pdf
Data publikacji:
2023
Wydawca:
Akademia Wojsk Lądowych imienia generała Tadeusza Kościuszki
Tematy:
anti-tank guided missile
turret
turret hatch
turret ring
unmanned aerial vehicle
przeciwpancerny pocisk kierowany
wieża
właz wieży
pierścień wieży
bezzałogowy statek powietrzny
Opis:
In response to the destruction of the hatch of main battle tanks, as has been evidenced in the on-going Russo-Ukrainian War, when a bomb or other explosive device is dropped onto the tank or its turret from above, a protective structure that deflects the device from causing harm to the turret – and thus the tankers – is desirable. This concept paper discusses one possibility: a tank 'umbrella', which offers, at least in theory, protection to the turret and tankers.
Tocząca się wojna rosyjsko-ukraińska udowodniła potrzebę wynalezienia konstrukcji chroniącej czołg podstawowy, zwłaszcza jego wieżę, przed zniszczeniem przez bombę albo inny ładunek wybuchowy zrzucon z góry. Niniejszy komunikat z badań opisuje jeden z możliwych pomysłów – czołgowy „parasol”, który zapewnia, przynajmniej w teorii, ochronę wieży czołgu i czołgistów.
Źródło:
Scientific Journal of the Military University of Land Forces; 2023, 55, 4(210); 361-366
2544-7122
2545-0719
Pojawia się w:
Scientific Journal of the Military University of Land Forces
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Finding Playing Styles of Badminton Players Using Firefly Algorithm Based Clustering Algorithms
Autorzy:
Ilankoon, I.M.T.P.K.
Samarasinghe, U.S.
Ariyaratne, M.K.A.
Silva, R. M.
Powiązania:
https://bibliotekanauki.pl/articles/27312858.pdf
Data publikacji:
2023
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
firefly algorithm
clustering
intra- and inter-cluster distance
badminton
Opis:
Cluster analysis can be defined as applying clustering algorithms with the goalof finding any hidden patterns or groupings in a data set. Different clusteringmethods may provide different solutions for the same data set. Traditionalclustering algorithms are popular, but handling big data sets is beyond theabilities of such methods. We propose three big data clustering methods basedon the firefly algorithm (FA). Three different fitness functions were definedon FA using inter-cluster distance, intra-cluster distance, silhouette value, andthe Calinski-Harabasz index. The algorithms find the most appropriate clustercenters for a given data set. The algorithms were tested with nine popularsynthetic data sets and one medical data set and are later applied on two bad-minton data sets with the intention of identifying the different playing stylesof players based on their physical characteristics. The results specify that thefirefly algorithm could generate better clustering results with high accuracy.The algorithms cluster the players to find the most suitable playing strategyfor a given player where expert knowledge is needed in labeling the clusters.Comparisons with a PSO-based clustering algorithm (APSO) and traditional al-gorithms point out that the proposed firefly variants work in a similar fashion asthe APSO method, and they surpass the performance of traditional algorithms.
Źródło:
Computer Science; 2023, 24 (3); 427--450
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Inappropriate Use of Submission and Rejection Emails for Advertising Revision Services and Congresses
Autorzy:
Teixeira da Silva, Jaime A.
Powiązania:
https://bibliotekanauki.pl/articles/29433370.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
Conferences
editing services
editor
editorial manager
email advertizing
online submission system
persuasion
Opis:
Finding a niche journal for the submission of an academic paper can sometimes be a challenge for authors, and finding the right choice may involve a series of submissions and rejections. Emails from editors and journals related to the submission or rejection of a paper should be strictly related to these purposes, i.e., to inform authors that their paper has been received, outline the subsequent editorial handling or peer reviewer steps in the former, or the reasons for rejection in the latter. This paper highlights four cases of - in the author’s opinion - the abuse of such emails by COPE member journals and publishers (Emerald Publishing Ltd., Springer Nature, Elsevier, Wiley) to advertise for-profit English revision and editing services and/or conferences, as a way to maximize these emails for a dual purpose, namely to inform authors of submission-related aspects (valid communication) while also trying to obtain clients and thus business for non-submission-related aspects (invalid communication). Since an abuse of email-based communication for non-academic purposes is an ethics-related matter, there is a need for systematic research of this potential abuse of emails from both COPE member and non-member journals.
Źródło:
Ethics in Progress; 2023, 14, 2; 68-76
2084-9257
Pojawia się w:
Ethics in Progress
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Online and FREE access to plasma physics experiments
Autorzy:
Mendes Rossa, Pedro A.
Kuriščák, Pavel
Silva, João N.
Veiga, José
Loureiro, João P. S.
Oliveira, João
Hachmeister, Daniel
Fernandes, Horácio
Powiązania:
https://bibliotekanauki.pl/articles/2202569.pdf
Data publikacji:
2023
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
educational technology
e-lab
electromagnetic cavity
langmuir probe
remote controlled experiment
Opis:
Remote controlled laboratories had a great push during the COVID-19 pandemic. In fact, they were already out there but lacking in visibility. This external trigger pushed the academy to face a global challenge to start offering remote experiments more consistently and maturely. Instituto Superior Técnico (IST) has been offering several remote experiments since 2000 but with the need for an update due to technological aging. As such, the framework for remote experiments in education (FREE) was created based on new web technologies. In addition to the most diverse experiments that had already been developed, FREE includes two experiments that aimed at advanced-level physics students: the Langmuir probe and the electromagnetic (EM) cavity. Both allow users to configure the various parameters and to access the results in real time or check back later. All this access is done using a browser (on a PC or mobile phone) without the need to install additional software. The results of an experimental execution are stored in a database and are downloadable, allowing users to do various analyses and to determine the corresponding plasma density and temperature. In this paper, we will introduce how FREE was used in the implementation of both experiments and give an insight into their didactic approach, such as: (i) how to perform an experimental execution, (ii) the typical data set obtained with, and (iii) the corresponding analysis necessary for the user to retrieve information from it.
Źródło:
Nukleonika; 2023, 68, 1; 37--46
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Participação política de mulheres em espaços de controle social: qual a importância dos Conselhos Municipais de Direitos das Mulheres em Santa Catarina e no Brasil?
Political participation of women in spaces of social control: what is the importance of Municipal Councils for Womans Rights in Santa Catarina and Brazil?
Autorzy:
Koerich, Maria Cecilia Takayama
Gomes da Silva, Janine
Powiązania:
https://bibliotekanauki.pl/articles/45902767.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Warszawski. Ośrodek Studiów Amerykańskich
Tematy:
Conselhos dos Direitos da Mulher
Controle Social
História
Mulheres
Políticas Públicas
Municipal Council for Woman’s Rights
Social Control
History
Women
Public Policies
Opis:
Este estudo busca promover um debate sobre os Conselhos Municipais dos Direitos da Mulher existentes no estado de Santa Catarina e no Brasil contemporâneo. Sabe-se que os Conselhos de Direitos representam uma possibilidade de participação da comunidade em relação às políticas públicas e ao seu controle social. Os Conselhos de Direitos são órgãos vinculados administrativamente ao Poder Executivo e atuam nas três esferas da federação. Assim, os Conselhos de Direitos são espaços de importante atuação da sociedade civil, que dialoga e atua junto ao poder público no sentido consultivo, deliberador e fiscalizador das políticas públicas. Este órgão é garantido pela Constituição Nacional de 1988 e por legislação própria, de acordo com a especificidade de cada Conselho. Neste contexto, promovemos neste estudo um debate sobre os limites e possibilidades de atuação dos Conselhos dos Direitos da Mulher em nosso país, a partir de sua historicidade e dos desafios em garantir a promoção de políticas públicas que contemplem a população de mulheres. Para tanto, utiliza-se os Estudos Feministas enquanto aporte teórico e metodológico neste estudo, pois a perspectiva ofertada pelos Estudos Feministas permite uma análise crítica sobre uma História que se coloca como universal e monolítica, já que anseia por outros modos de produzir conhecimento.
This study seeks to promote a debate on the Municipal Councils for Woman's Rights of the state of Santa Catarina and contemporary Brazil. It is known that the Rights Councils represent a possibility for community participation concerning public policies and their social control. The Rights Councils are bodies administratively linked to the Executive Branch and operate in the three spheres of the federation. Thus, the Rights Councils are spaces for important action by civil society, which dialogues and works with public authorities in a consultative, deliberative, and supervisory sense of public policies. This body is guaranteed by the 1988 National Constitution and by specific legislation, according to the specificity of each Council. In this context, in this study, we promote a debate on the limits and possibilities of action of Women's Rights Councils in our country, based on their historicity and the challenges in guaranteeing the promotion of public policies that include the female population. To this end, Feminist Studies is used as a theoretical and methodological contribution to this study, as the perspective offered by Feminist Studies allows a critical analysis of a History that is seen as universal and monolithic, as it yearns for other ways of producing knowledge.
Źródło:
Revista del CESLA. International Latin American Studies Review; 2023, 32; 65-82
1641-4713
Pojawia się w:
Revista del CESLA. International Latin American Studies Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Whole-body vibration on lower limb flexibility and extensibility – a randomized clinical trial
Autorzy:
da Silva Morais, Carla Cristina
Favaro Misiak, Gabriele
Santin, Ligia Maria
Rodrigo de Carvalho, Alberito
Flor Bertolini, Gladson Ricardo
Powiązania:
https://bibliotekanauki.pl/articles/25102369.pdf
Data publikacji:
2023-06-30
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
musculoskeletal abnormalities
physical therapy modalities
range of motion
Opis:
Introduction and aim. The whole-body vibration has become known for optimizing the production of muscle power due to mechanical oscillations that are dependent on vibration frequency. However, the effects of varying the vibration frequency on flexibility have still been little explored. Compare the effects of two frequencies of whole-body vibration on flexibility and extensibility of the lower limbs. Material and methods. Randomized clinical trial with a sample of 42 young adult volunteers of both sexes, who performed squatting sessions with individualized load on a platform and distributed into three groups of vibration frequency: control group (CG), with the platform off; low frequency group (LF), with a frequency of 30 Hz; high frequency group (HF), with a frequency of 45 Hz. In total, the intervention was carried out in 12 sessions and lasted 6 weeks, with 2 sessions per week. Flexibility, evaluated before and after the intervention by the sit and reach test (Wells bench) and by evaluating the extensibility of the ischiotibials by goniometry. Results. No statistical differences were observed for any of the outcomes evaluated. Conclusion. None of the proposed frequencies produced gains in flexibility and extensibility of the lower extremities and there was no superiority of one frequency over another.
Źródło:
European Journal of Clinical and Experimental Medicine; 2023, 2; 224-229
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A “viagem da volta”: O ensino da língua e a territorialização nas aldeias Sede e Ytuaçu da Terra Indígena Alto Rio Guamá - Pará
The “viagem da volta”: The language teaching and the territorialization in the Villages and Ytuaçu of the Indigenous Terra Alto Rio Guamá - Pará
Autorzy:
da Silva Ponte, Vanderlúcia
dos Santos Souza, Jaqueline
Fernandes da Silva, Tabita
Pinto Lima, Maria Roseane Corrêa
Tembé, Bewãri
Powiązania:
https://bibliotekanauki.pl/articles/45689285.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Warszawski. Ośrodek Studiów Amerykańskich
Tematy:
Amazônia
povo Tenetehar
territorialização
língua
identidade
Amazon
Tenetehar people
territorialization
language
identity
Opis:
O presente estudo busca compreender em que medida o processo de inserção da Língua Tembé na aldeia Sede, da Terra Indígena Alto Rio Guamá (TIARG), impulsionou, entre os Tembé, outros mecanismos políticos por meio dos quais esse povo acionou a memória histórica de contato e os saberes dos mais velhos. Assim, a metodologia pauta-se na pesquisa etnográfica por meio de trabalho de campo e entrevistas abertas, o que nos permitiu maior aproximação das experiências. Ao final, constatou-se que o processo de retomada da língua Tembé está diretamente vinculado aos processos de territorialização dos Tembé, os quais ocorreram por meio de ajuda mútua e solidariedade com os Tembé do Gurupi, bem como pelo incentivo e inserção do ensino da língua indígena Tembé nas escolas, movimentos engendrados como estratégias de autoafirmação da indianidade Tembé e do território Tenetehar.
The present study seeks to understand to what extent the process of insertion of the Tembé language in the main village of the Indigenous Terra Alto Rio Guamá (TIARG), boosted, among the Tembé, other political mechanisms through which these people activated the historical memory of contact and the knowledge of the elders. Thus, the methodology is based on ethnographic research through fieldwork and open interviews, which allowed us to get closer to their experiences. In the end, it was found that the process of retaking the Tembé language is directly linked to the processes of territorialization of the Tembé, which occurred through mutual help and solidarity with the Tembé of the Gurupi, as well as through the encouragement and insertion of language teaching Indigenous Tembé in schools, movements engendered as strategies for self-assertion of the Tembé Indianity and the Tenetehar territory.
Źródło:
Revista del CESLA. International Latin American Studies Review; 2022, 30; 139-154
1641-4713
Pojawia się w:
Revista del CESLA. International Latin American Studies Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Common Archetype: Imaginary and Linguistic-Discursive Analysis of the Heroic Feminine in Brazilian and Polish Folk Narratives
Wspólny archetyp: wyobrażeniowa i językowo-dyskursywna analiza bohaterskiej kobiecości w brazylijskich i polskich narracjach ludowych
Autorzy:
da Silva Borges, Alexandre
Figueira-Cardoso, Samuel
Powiązania:
https://bibliotekanauki.pl/articles/23202412.pdf
Data publikacji:
2022-11-24
Wydawca:
Uniwersytet Warszawski. Instytut Studiów Iberyjskich i Iberoamerykańskich
Tematy:
Imaginary
text-discourse
archetype of the warrior
mermaid
Iara/Syrenka
Opis:
Legends, fairy tales, and myths have always aroused the interest of diverse societies. They are discursive genres that represent the imaginary of peoples and communities. Through them, identities and beliefs are constituted, revealing common aspects of a particular culture. In the narratives we find heroes and heroines who defend cities, stop the enemy, and are at the mercy of their own fate. Based on this assumption, this study aims to answer the following research question: how can the linguistic-symbolic convergences of the female heroic archetype of Iara and Syrenka be explained from a transdisciplinary theoretical assumption? To address this issue, we propose the following objectives: a) to present the symbolic and archetypal convergences that emerge in the narratives of Iara and Syrenka’s female heroism through Brazilian and Polish discourse and the imaginary; b) to propose a theoretical-methodological analysis in terms of transdisciplinarity. The work presented here shows that the exercise of this instaurative transdisciplinarity is possible if the methods and the theoretical path are made clear. Finally, the study has shown that the female heroic archetype is present in both cultures, Brazilian and Polish contexts, from which the narratives originate, sharing mythical traits and textual-discursive configurations.
Źródło:
Ameryka Łacińska. Kwartalnik analityczno-informacyjny; 2022, 30, 3 (117); 101-122
1506-8900
2081-1152
Pojawia się w:
Ameryka Łacińska. Kwartalnik analityczno-informacyjny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A simulation strategy to determine the mechanical behaviour of cork-rubber composite pads for vibration isolation
Autorzy:
Lopes, Helena
Silva, Susana P.
Machado, José
Powiązania:
https://bibliotekanauki.pl/articles/2057983.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
cork-rubber composites
compression
vibration isolation
linear regression
finite element analysis
Opis:
The present work aimed to determine the performance of new cork-rubber composites, applying a modelling-based approach. The static and dynamic behaviour under compression of new composite isolation pads was determined using mathematical techniques. Linear regression was used to estimate apparent compression modulus and dynamic stiffness coefficient of compounds samples based on the effect of fillers, cork and other ingredients. Using the results obtained by regression models, finite element analysis (FEA) was applied to determine the behaviour of the same cork-rubber material but considering samples with different dimensions. The majority of the regression models presented R2 values above 90%. Also, a good agreement was found between the results obtained by the presented approach and previous experimental tests. Based on the developed methodology, the compression behaviour of new cork-rubber compounds can be accessed, improving product development stages.
Źródło:
Eksploatacja i Niezawodność; 2022, 24, 1; 80--88
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Boronowska opowieść. Rapt J[ej]m[ości] Panny Dzierżanowskiej przez J[ego]m[ości] P[an]a Frantemberka [– –] – edycja utworu
Autorzy:
Szafrańska, Monika
Powiązania:
https://bibliotekanauki.pl/articles/2028472.pdf
Data publikacji:
2022-01-11
Wydawca:
Polska Akademia Nauk. Instytut Historii im. Tadeusza Manteuffla PAN w Warszawie
Tematy:
raptus puellae
abduction
silva rerum
Aleksander Minor
occasional poetry
exemplum
porwanie panny
sylwa
poezja okolicznościowa
egzemplum
Opis:
Artykuł zawiera edycję rękopiśmiennego utworu okolicznościowego opowiadającego o uprowadzeniu panny. Tekst pochodzi z sylwy Aleksandra Minora (sygn. 691), spisanej prawdopodobnie w latach 1664–1705 i znajdującej się w zbiorach Biblioteki Baworowskich (fond 4, dział 1) w Lwowskiej Narodowej Naukowej Bibliotece Ukrainy im. Wasyla Stefanyka.
The article contains an edition of a handwritten occasional piece about the abduction of a maiden. The text comes from a silva rerum by Alexander Minor (ref. no. 691), probably written between 1664 and 1705, and held in the collection of the Baworowski Library (fond 4, section 1) at the Vasyl Stefanyk National Scientific Library of Ukraine.
Źródło:
Odrodzenie i Reformacja w Polsce; 2022, 65; 275-295
0029-8514
Pojawia się w:
Odrodzenie i Reformacja w Polsce
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Corrosion Behavior of FeAl and Fe3Al Based Fe-Al-C Alloys in Sulfuric Acid
Autorzy:
Silva, A. P.
Brito, P. P.
Martins, N.
Powiązania:
https://bibliotekanauki.pl/articles/2134209.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
iron aluminides
microstructure
mechanical properties
corrosion resistance
Opis:
Iron aluminides are iron-aluminum alloys that have excellent resistance to oxidation at high temperatures with low density, high resistance/weight ratio and a low manufacturing cost. Due to its characteristics, these alloys are presented as an option to replace stainless steels in certain applications. This works intends report the casting process and subsequent analyses involving microstructure, mechanical properties, and corrosion resistance of two Fe-Al-C alloys (Fe-11wt%Al and Fe-25wt%Al, containing 0.31-0.37%C), which were prepared in an induction furnace and poured in a permanent mold. Samples of these alloys were characterized and presented elevated hardness values of 37 HRC (alloy Fe-11wt%Al) and 49.6HRC (alloy Fe-25wt%Al) and microstructure with aluminides type Fe3Al and FeAl and also carbides type K. The Fe-11wt%Al alloy exhibited superior resistance to uniform corrosion, although both Fe-Al-C alloys exhibited significantly higher corrosion rates compared to a binary iron aluminide in 0.5M H2SO4 containing naturally dissolved oxygen.
Źródło:
Archives of Foundry Engineering; 2022, 22, 2; 77--82
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Does the Nobel Prize reflect current scientific and academic values?
Autorzy:
Teixeira da Silva, Jaime A.
Powiązania:
https://bibliotekanauki.pl/articles/28635936.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
citations and rewards
conflict and conflict resolution
controversy
fame
gender balance
polemic
recognition
stature and standing
Opis:
This opinion paper puts forward arguments that reflect how science’s most elite prize, the Nobel Prize may be, despite its grand stature, somewhat out of touch with the functionality of grassroots science. There is a disconnect between limited fields of study to which the prize is awarded and the interdisciplinary nature of complex research. This is the first weakness. The second limitation is the focus on a single individual, occasionally on two or three when the prize is divided, even though much research is frequently collaborative. This is particularly true in the biomedical and natural sciences, which tend to involve individuals with multiple skills, each or all of whom may be equally deserving of the Nobel Prize, given their collective participation. The Nobel Prize also tends to display poor cultural, linguistic and gender representation and/or bias. Finally, retractions of papers by select Nobel Prize laureates suggest that even these elite academics are not immune to the ills of science and academic publishing and that affect all scientists in a complex global web.
Źródło:
Filozofia Publiczna i Edukacja Demokratyczna; 2021, 10, 1; 1-18
2299-1875
Pojawia się w:
Filozofia Publiczna i Edukacja Demokratyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 164

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