Autor: Hernández, José - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: BOVW For Classification In Geometrics Shapes
Autorzy:: Zurita, Baldemar
Luna, Luís
Hernández, José
Ramírez, Federico
Powiązania:: https://bibliotekanauki.pl/articles/118227.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Promocji Wiedzy
Tematy:: BOVW
classification
codebook
klasyfikacja
słownik kodów
Opis:: The classification of forms is a process used in various areas, to perform a classification based on the manipulation of shape contours it is necessary to extract certain common characteristics, it is proposed to use the bag of visual words model, this method consists of three phases: detection and extraction of characteristics, representation of the image and finally the classification. In the first phase of detection and extraction the SIFT and SURF methods will be used, later in the second phase a dictionary of words will be created through a process of clustering using K-means, EM, K-means in combination with EM, finally in the Classification will be compared algorithms of SVM, Bayes, KNN, RF, DT, AdaBoost, NN, to determine the performance and accuracy of the proposed method.
Źródło:: Applied Computer Science; 2018, 14, 4; 5-11
1895-3735
Pojawia się w:: Applied Computer Science
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Environmental safety aspects of using UHF RFID systems in hospitals
Aspekty środowiskowego bezpieczeństwa wykorzystania systemów UHF RFID w szpitalach
Autorzy:: Zradziński, Patryk
Karpowicz, Jolanta
Gryz, Krzysztof
Suarez, Oscar J.
Trillo, Angeles M.
Hernandez, Jose A.
Miguel-Bilbao de, Silvia
Suarez, Samuel D.
Celaya-Echarri, Mikel
Azpilicueta, Leyre
Falcone, Francisco
Ramos, Victoria
Powiązania:: https://bibliotekanauki.pl/articles/2146754.pdf
Data publikacji:: 2020
Wydawca:: Indygo Zahir Media
Tematy:: biomedical engineering
environmental engineering
occupational exposure
public health
AIMD
Internet of things
inżynieria biomedyczna
inżynieria środowiska
narażenie zawodowe
zdrowie publiczne
internet rzeczy
Opis:: Various applications of Radio Frequency IDentification (RFID) technology in the medical environment are characterised. The electromagnetic field (EMF) emitted by RFID handheld readers (RFID guns) is characterised and evaluated with respect to humans exposure metrics – the strength of the electric field affecting anyone present near various UHF (ultra-high frequency) RFID guns and the specific absorption rate (SAR) values in their body. UHF RFID systems are the most popular of such systems used in hospitals. The performed studies indicate that the EMF exposure level near the RFID gun antenna and SAR values (a measure of the thermal effects of EMF exposure) caused by exposure from the RFID reader may exceed the limits of the electric field and SAR issued by international guidelines or legislation. Potentially excessive exposure to EMF emitted by UHF RFID readers is not limited to the user of the device, but may also apply to patients or bystanders. Only UHF RFID guns with an EMF emission lower than 1 W may be considered as an insignificant source of human exposure. The use of readers with a radiated power exceeding 1 W requires the evaluation of the EMF level using measurements, and also the evaluation of SAR by numerical modelling in the case of their use in close proximity to humans. In all cases, insufficient electromagnetic immunity of electronic devices (including medical implants) should be considered near RFID guns at least up to half of the reading range away from the RFID reader. The electromagnetic hazards related to the use of RFID guns may be limited by relevant preventive measures, as shown in this paper, together with the principles of an in-situ evaluation of electromagnetic hazards near the UHF RFID guns.
Scharakteryzowano różne zastosowania technologii identyfikacji radiowej (RFID) w środowisku medycznym. Pole elektromagnetyczne emitowane przez ręczne czytniki RFID (RFID guns) zostało scharakteryzowane i ocenione w odniesieniu do miar narażenia ludzi – natężenia pola elektrycznego oddziałującego na osoby znajdujące się w pobliżu różnych czytników RFID UHF (ultrawysokiej częstotliwości) i współczynnika SAR w ich ciele. System UHF RFID jest najpopularniejszym z systemów RFID użytkowanych m.in. w szpitalach. Przeprowadzone badania wskazują, że poziom ekspozycji na pole elektromagnetyczne w pobliżu anteny ręcznego czytnika RFID i wartości SAR (miara skutków termicznych oddziaływania pola elektromagnetycznego) spowodowane tą ekspozycją mogą przekraczać limity, opublikowane w zleceniach międzynarodowych lub przepisach. Nadmierna ekspozycja na pole elektromagnetyczne emitowane przez czytniki RFID UHF może dotyczyć nie tylko użytkownika urządzenia, ale również pacjenta lub osoby postronnej. Tylko ręczne czytniki RFID UHF o emisji pola elektromagnetycznego poniżej 1 W można uznać za nieistotne źródło narażenia ludzi. Korzystanie z czytników o mocy przekraczającej 1 W wymaga oceny poziomu pola elektromagnetycznego za pomocą pomiarów, a również oceny SAR za pomocą modelowania numerycznego w przypadku ich użycia w bezpośredniej bliskości ludzi. We wszystkich przypadkach niewystarczającą odporność elektromagnetyczną urządzeń elektronicznych (w tym implantów medycznych) należy rozważyć w pobliżu czytników RFID co najmniej do odległości od czytnika RFID równej połowie jego zasięgu odczytu. Zagrożenia elektromagnetyczne związane z używaniem ręcznych czytników RFID mogą być ograniczone przez odpowiednie środki ochronne, jak pokazano w tym artykule, wraz z zasadami oceny zagrożeń elektromagnetycznych in-situ w pobliżu ręcznych czytników UHF RFID.
Źródło:: Inżynier i Fizyk Medyczny; 2020, 9, 2; 133--140
2300-1410
Pojawia się w:: Inżynier i Fizyk Medyczny
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Interface of organisational ageing and organisational ecology theory
Autorzy:: Vargas-Hernández, José G.
Rakowska, Joanna
Vargas-González, M. C. Omar C.
Powiązania:: https://bibliotekanauki.pl/articles/11364551.pdf
Data publikacji:: 2022-09-30
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:: organisational ecology
organisational aging
organisation change
organisation theory
Opis:: The study aimed to conclude on the up-to-date state of the organisational ecology theory concerning relations between organisational ageing and organisational ecology, enhanced by social and ecological systems and ecological management. The applied method included analytical and reflective concluding, based on the synthesis of findings from a critical literature review. It was concluded that: (i) organisational ageing generates some of the most important consequences in organisational ecology; however, there is still no consensus on what kind of consequences prevail; (ii) at population level, the adaptation of organisational structures occurs with the replacement of old organisations that fail to adapt by the new ones; (iii) under the prevalent backdrop of radical structural and strategic changes, individual organisations are subject to inertial forces and thus are confronted with limitations to their success; (iv) ageing has positive consequences for innovative activities of older companies; and (v) the higher the density and concentration of industry, the higher the rates of founding firms and the lower the rates of mortality.
Źródło:: Marketing Instytucji Naukowych i Badawczych; 2022, 45, 3; 57-70
2353-8414
Pojawia się w:: Marketing Instytucji Naukowych i Badawczych
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: Strategies for Creating New Business, a Sociocultural and Institutional Approach
Autorzy:: Vargas-Hernández, José G.
Powiązania:: https://bibliotekanauki.pl/articles/517246.pdf
Data publikacji:: 2013
Wydawca:: Instytut Badań Gospodarczych
Tematy:: entrepreneur
company
socio-cultural approach
theories on the creation of companies
Opis:: This paper aims to summarize the main theories from socio-cultural or institutional approach to encourage the creation of new businesses. Given this context, it raised the importance of theoretical study of the factors that influence decision making in the development of new businesses and how it affects the environment in which they operate the same business. The research method used was to review the existing literature by analyzing the major theories involved in the creation of companies, emphasizing the socio-cultural approach. The analysis concludes the activity of entrepreneurship to encouraging the creation of companies, being an important factor in economic development.
Źródło:: Equilibrium. Quarterly Journal of Economics and Economic Policy; 2013, 8, 1; 81-90
1689-765X
2353-3293
Pojawia się w:: Equilibrium. Quarterly Journal of Economics and Economic Policy
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: Food delivery based on pso algortihm and google maps
Autorzy:: Soto, Sergio
Bonilla, Edmundo
Portilla, Alberto
Hernández, Jose C.
Atriano, Oscar
Quintero, Perfecto M.
Powiązania:: https://bibliotekanauki.pl/articles/117679.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Promocji Wiedzy
Tematy:: TSP
mapy Google
PSO
food delivery
Google maps
dostawa jedzenia
Opis:: This article presents a solution to deal with the optimization of delivery routes problem for a mobile application focused on the restaurant sector, by using a bioinspired algorithm (PSO) to minimize delivery costs, maximize a greater number of deliveries and recommend an optional route for food delivery. Different computational experiments are carried out by using Google Maps (API) for showing the best delivery route. The results obtained are very promising for offering a good delivery service.
Źródło:: Applied Computer Science; 2020, 16, 1; 60-72
1895-3735
Pojawia się w:: Applied Computer Science
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: Biological translocation of parathion methyl by Pilobolus sp. In corn microsystems
Autorzy:: Romero, Luis Antonio Vaje
Tejocote-Pérez, Moisés
Alcántara-Valladolid, Ana Elisa
Balderas-Hernández, Patricia
Roa-Morales, Gabriela
Barrera-Díaz, Carlos Eduardo
Araceli, Amaya Chávez
Cano, José Adrián Silis
Álvarez-Lopeztello, Jonás
Powiązania:: https://bibliotekanauki.pl/articles/27323976.pdf
Data publikacji:: 2023
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: parathion methyl
Pilobolus inoculum
corn
removal
paration metylowy
kukurydza
usuwanie
Opis:: Parathion methyl is a widely used organophosphorus pesticide (OPs). OPs in agroecosystems cause severe health and environmental effects. In this study, the Pilobolus inoculum’s ability to remove parathion methyl in microsystems corn crop was evaluated at the laboratory level. Agricultural soils containing Pilobolus inoculum were exposed to 50 μg/dm3 of parathion methyl. The results showed that Pilobolus inoculum can eliminate parathion methyl in 80% of microsystems, and positively influences 20% of the physiological processes of corn plants. This research into the field of myco-remediation widens the use of little-studied fungal species such as Pilobolus to remove pesticides.
Źródło:: Environment Protection Engineering; 2023, 49, 3; 5--14
0324-8828
Pojawia się w:: Environment Protection Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 7.

Tytuł:: Manufacture of Toughened Al2O3-Based Composites by the Combination of RBAO and SPS Processes
Autorzy:: Rocha-Rangel, Enrique
Calles-Arriaga, Carlos A.
López-Hernández, Juan
Rodríguez-García, José A.
Powiązania:: https://bibliotekanauki.pl/articles/2203745.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: RBAO process
SPS process
Al2O3
fracture toughness
ceramic composites
Opis:: The effect of additions of silver or titanium (0.5 or 3 vol.%) microparticles on the microstructure, as well as some physical properties of Al2O3-based composites, were studied. The processing method for the manufacturing of alumina-based composites was a combination of RBAO and SPS processes. After the SPS process, bodies with almost full density were obtained. Observations by optical microscopy show a very fine and homogenous microstructure in all samples. Concerning mechanical properties, the addition of metals on alumina increases its fracture toughness significantly (112% for the sample with additions of silver, while the composite with additions of titanium fracture toughness increases by 72%). In terms of optical properties, both silver and titanium improve the absorbance in the visible range.
Źródło:: Archives of Metallurgy and Materials; 2023, 68, 1; 249--255
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 8.

Tytuł:: Synthesis of SrTiO3 by the Calcination of SrCO3 and TiO2 Mixtures Intensively Ground by Means of High Energy Milling
Autorzy:: Rocha-Rangel, Enrique
Pech-Rodríguez, Wilian J.
López-Hernández, Juan
Calles-Arriaga, Carlos A.
Armendáriz-Mireles, Eddie N.
Castillo-Robles, José A.
Rodríguez-García, José A.
Powiązania:: https://bibliotekanauki.pl/articles/356247.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: SrTiO3
mechanochemistry
insulating ceramics
perovskite
Opis:: A SrTiO₃ electroceramic with perovskite structure was produced by the calcination of a mixture of SrCO₃ and TiO₂ intensively grounded by high energy milling. For this purpose, raw materials were mixed in stoichiometric amounts in a planetary type mill; the obtained powder mixture was calcined for 2 h at temperatures between 800 and 1300°C. Samples resulting from the calcination were characterized by XRD, FTIR, SEM analysis and electrical measurements. From XRD, it was determined that the SrTiO₃ formed presents the cubic structure of perovskite. The complete reaction for SrTiO₃ compound formation occurs at 1200°C. Micrograph observations indicate the presence of a homogeneous microstructure with tiny grain size. The measured values of electrical resistivity were within the typical range of insulating materials.
Źródło:: Archives of Metallurgy and Materials; 2020, 65, 2; 621-626
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 9.

Tytuł:: Application for functionality and registration in the cloud of a microcontroller development board for IoT in AWS
Autorzy:: Pérez, Elizabeth
Araiza, Juan C.
Pozos, Dreysy
Bonilla, Edmundo
Hernández, José C.
Cortes, Jesús A.
Powiązania:: https://bibliotekanauki.pl/articles/1837785.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Promocji Wiedzy
Tematy:: AWS
IoT
MQTT
Opis:: The use of the Amazon Web Services cloud enables new functionalities that are not possible with traditional solutions: low latency, local data processing and storage, and direct connectivity to other cloud services. Reimagining the way IoT connectivity services are presented by combining AWS cloud technology with mobile connectivity offers rapid prototyping to help connect devices natively over Wi-Fi. For this, the MQTT communication protocol is used to interact with the IoT device and exchange data, which allows controlling the basic functions of a sensor node. The installation is realized through a software development kit (SDK), which allows the creation of an application for Android devices. This solution gives the option to integrate together, improving the connectivity of the IoT system. The results enable board logging and network configuration, and can also be used to control the IoT device. The embedded firmware provides the required security functions.
Źródło:: Applied Computer Science; 2021, 17, 2; 14-27
1895-3735
Pojawia się w:: Applied Computer Science
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 10.

Tytuł:: Traducción periodística y recepción: la opinión de los lectores
Autorzy:: Palomo Ferrer, Ana Belén
Hernández Guerrero, María José
Powiązania:: https://bibliotekanauki.pl/articles/2079360.pdf
Data publikacji:: 2022-07-20
Wydawca:: Uniwersytet Warszawski. Wydział Neofilologii
Tematy:: traducción periodística
recepción
defensor del lector
comentarios de los lectores
El País
Opis:: La recepción de las noticias traducidas es un campo de la traducción periodística prácticamente inexplorado, como han puesto de manifiesto Holland (2013) o Davier (2019). Hasta la fecha, muy pocos estudios han analizado cómo reciben las audiencias la información traducida. Se trata de análisis de casos centrados en medios concretos, con diferentes enfoques y en diferentes pares de lenguas (p. ej. Conway y Vaskivska 2010, Tian y Chao 2012). El presente estudio se inscribe en esta línea de investigación y pretende analizar cómo reciben los lectores españoles la información traducida. Para esta primera aproximación, nos hemos servido del caso de "El País", un medio que utiliza ampliamente la traducción en la producción de noticias. Nuestro estudio se ha centrado en las opiniones de sus lectores recogidas en la sección del Defensor del Lector, un espacio dinámico de la edición digital de este medio, abierto a los lectores que están suscritos. El defensor atiende sus dudas, quejas y sugerencias sobre los contenidos del periódico y les responde mediante la publicación regular de una columna cada dos semanas. El corpus analizado comprende tanto las opiniones de los lectores como las respuestas del defensor. De los datos obtenidos, se han extraído todas las opiniones en torno a la traducción con el objetivo de analizar la (in)satisfacción de los lectores con respecto a la información traducida publicada por este medio.
Źródło:: Itinerarios; 2022, 35; 93-106
1507-7241
Pojawia się w:: Itinerarios
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 11.

Tytuł:: Establishing Technical and Tactical Performance Goals for Elite Male Volleyball Players
Autorzy:: Palao, José M.
García-de-Alcaraz, Antonio
Hernández-Hernández, Elena
Valadés, David
Ortega-Toro, Enrique
Powiązania:: https://bibliotekanauki.pl/articles/1030497.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:: monitoring
performance
port
statistics
Opis:: The goal of this study was to establish technical and tactical performance goals for elite male volleyball players (Spanish first division). This paper is the result of scientific collaboration between volleyball coaches and researchers. The process of establishing the goals and the reference values of the performance goals was: 1) conceptual analysis, establishing the criteria for the analysis of players’ and teams’ performance (researchers and coaches); 2) mathematical analysis, data collection and data analysis of the possible performance goals; and 3) practical analysis, establishing the performance goals according to their usefulness and applicability following the SMART principle. Seven performance goals were established to evaluate the technical-tactical actions of the players in training and in competition. Protocols utilized can be used as references of how to calculate the technical and tactical performance goals in sport.
Źródło:: Central European Journal of Sport Sciences and Medicine; 2018, 21, 1; 5-12
2300-9705
2353-2807
Pojawia się w:: Central European Journal of Sport Sciences and Medicine
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 12.

Tytuł:: Use of Eichhornia Crassipes as a Bioadsorbent for the Removal of Methyl Orange and Methylene Blue Present in Residual Solutions
Autorzy:: Hernández-Origel, Carlos David
Patiño-Saldivar, Laura
Salazar-Hernández, Mercedes
Ardila, Alba Nelly
Talavera-López, Alfonso
Hernánez-Soto, Rosa
Hernández, José Alfredo
Powiązania:: https://bibliotekanauki.pl/articles/2173377.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: bioadsorbents
equilibrium
freundlich
kinetic
water lily
Opis:: The textile industry is very important because its products are widely used by society, however, this activity has a great contribution to the contamination of water resources due to its effluents that contain large amounts of colorants, among which is the blue of methylene (MB) and methyl orange (MO) that can cause damage to the health of living being. For this reason the present study concerned the removal of these dyes by adsorption using Eichhornia Crassipes (Water lily) with different treatments. The results show that the chemisorption removal process using two sites per dye molecule having an exothermic nature for the water-treated lily and for the NaOH-treated lily is endothermic. The maximum adsorption capacities of 228.9 mg/g for MB (60 °C) and 155.38 mg/g (30 °C) for MO with the NaOH treatment were achieved. The SEM analysis shows that there are significant changes in the surface due to the treatments. The XRD patterns indicate that with the pretreatment with NaOH the crystallinity of WL increases while the treatment with water maintains the presence of amorphous cellulose. In the FTIR spectra, the bands corresponding to different functional groups such as lignin, cellulose and hemicellulose that participate in the adsorption of both dyes are observed.
Źródło:: Journal of Ecological Engineering; 2022, 23, 9; 193--211
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 13.

Tytuł:: Some remarks on the structure of strong $k$-transitive digraphs
Autorzy:: Hernández-Cruz, César
Montellano-Ballesteros, Juan José
Powiązania:: https://bibliotekanauki.pl/articles/30148710.pdf
Data publikacji:: 2014-11-01
Wydawca:: Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:: digraph
transitive digraph
k-transitive digraph
quasi-transitive digraph
k-quasi-transitive digraph
Laborde-Payan-Xuong Conjecture
Opis:: A digraph $D$ is $k$-transitive if the existence of a directed path ($v_0, v_1, . . ., v_k$), of length $k$ implies that ($v_0, v_k) ∈ A(D)$. Clearly, a 2-transitive digraph is a transitive digraph in the usual sense. Transitive digraphs have been characterized as compositions of complete digraphs on an acyclic transitive digraph. Also, strong 3 and 4-transitive digraphs have been characterized. In this work we analyze the structure of strong $k$-transitive digraphs having a cycle of length at least $k$. We show that in most cases, such digraphs are complete digraphs or cycle extensions. Also, the obtained results are used to prove some particular cases of the Laborde-Payan-Xuong Conjecture.
Źródło:: Discussiones Mathematicae Graph Theory; 2014, 34, 4; 651-671
2083-5892
Pojawia się w:: Discussiones Mathematicae Graph Theory
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 14.

Tytuł:: Thermodynamic analysis of the influence of potassium on the thermal behavior of kaolin raw material
Autorzy:: Hernández-Chávez, Macaria
Vargas-Ramírez, Marissa
Herrera-González, Ana Maria
García-Serrano, Jesús
Cruz-Ramírez, Alejandro
Romero-Serrano, José Antonio
Sánchez-Alvarado, Ricardo Gerardo
Powiązania:: https://bibliotekanauki.pl/articles/1448343.pdf
Data publikacji:: 2021
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: kaolin
thermal treatment
thermodynamic analysis
viscosity
Opis:: The mineralogy and thermal properties of two kaolin clay samples from Agua Blanca (Hidalgo-México) were determined by XRD, SEM-EDS, TGA-DSC techniques. Kaolin clay A contains a higher $Al_2O_3$ and lower impurities $(K_2O, TiO_2, Fe_2O_3)$ amount than kaolin clay B, while the SiO2 amount is similar for both kaolin clays. A theoretical approach was carried out by a thermodynamic analysis considering the chemical composition of both kaolin clay samples with the FactSage 7.3 software. Stability phase diagrams were obtained to different K2O content from 0.1 to 3 wt % and temperatures in the range from 600 to 1600°C based on the chemical composition of the kaolin clay samples. The main mineralogical compounds predicted are andalusite $(Al_2O_3•SiO_2)$, K-Potash feldspar $(K_2O•Al_2O_3•6SiO_2)$, and the $SiO_2$ polymorphs (quartz, tridymite, and cristobalite) with small amounts of ferric-pseudobrookite $(Fe_2O_5Ti)$, and rutile $(TiO_2)$. As $K_2O$ content is increased, the amounts of mullite and tridymite decrease meanwhile the potash feld spar is increased at high temperatures. A liquid phase is formed at around 1350 and 1400°C for the kaolin clay samples A and B, respectively. The viscosity of the melt is increased for the evaluated $K_2O$ additions to 1400, 1500, and 1600°C.
Źródło:: Physicochemical Problems of Mineral Processing; 2021, 57, 1; 39-52
1643-1049
2084-4735
Pojawia się w:: Physicochemical Problems of Mineral Processing
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 15.

Tytuł:: Effect of UV-C Postharvest Disinfection on the Quality of Fresh-Cut 'Tommy Atkins' Mango
Autorzy:: Garzón-García, Alba Mery
Ruiz-Cruz, Saúl
Dussán-Sarria, Saúl
Hleap-Zapata, José Igor
Márquez-Ríos, Enrique
Del-Toro-Sánchez, Carmen Lizette
Tapia-Hernández, José Agustín
Canizales-Rodríguez, Dalila Fernanda
Ocaño-Higuera, Víctor Manuel
Powiązania:: https://bibliotekanauki.pl/articles/16538533.pdf
Data publikacji:: 2023-02-16
Wydawca:: Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:: minimal processing
surface color
native microorganisms
predictive microbiology
ultraviolet short wave irradiation
Opis:: Mango cv. ‘Tommy Atkins’ is a highly appreciated fruit for its organoleptic characteristics and its resistance to minimal processing. However, some operations as peeling and cutting can generate microbial contamination and loss of bioactive compounds. Ultraviolet short wave (UV-C) is an alternative technology for fresh-cut products that leads to microbial inactivation and the increase of beneficial compounds. The effect of a UV-C dose of 6 kJ/m2 was evaluated on quality attributes of fresh-cut 'Tommy Atkins' mango during days 0, 3, 6, 9, and 12 of storage (5°C, relative humidity: 85-90%), and compared with a positive control (conventional method by immersion in 10 mg/L sodium hypochlorite solution) and a negative control (without treatment). Physicochemical analysis (titratable acidity, pH, total soluble solid content, and firmness), superficial color evaluation, determinations of microbial counts, contents of total carotenoids, phenolics and flavonoids, and antioxidant capacity assays were performed. The results showed that UV-C treatment allowed to preserve microbial safety and superficial color of stored fresh-cut mango, and to increase the content of total carotenoids, which was 19.34 and 26.50 mg β-carotene/100 g fresh weight (FW) for control and UV-C treated sample at day 12 of storage, respectively. The DPPH• scavenging activity of the UV-C treated mango was also higher (0.60 mM TE/g FW) compared to control (0.27 mM TE/g FW) at the end of storage. However, UV-C treatment caused loss of firmness. Some native microorganisms of mango adapted to the stress caused by the treatments and the storage.
Źródło:: Polish Journal of Food and Nutrition Sciences; 2023, 73, 1; 39-49
1230-0322
2083-6007
Pojawia się w:: Polish Journal of Food and Nutrition Sciences
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Hernández, José" wg kryterium: Autor

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język