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Tytuł:
Effect of Extrusion on the Functional Properties and Bioactive Compounds of Tamarind (Tamarindus indica L.) Shell
Autorzy:
Aguilar-Avila, Dalia S.
Martinez-Flores, Hector E.
Morales-Sanchez, Eduardo
Reynoso-Camacho, Rosalía
Garnica-Romo, Ma. Guadalupe
Powiązania:
https://bibliotekanauki.pl/articles/16538555.pdf
Data publikacji:
2023-08-31
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:
thermomechanical treatment
tamarind shell
dietary fiber
phenolic compounds
antioxidant capacity
Opis:
The food-use of the tamarind (Tamarindus indica L.) fruit produces shell and seeds as by-products. In this work, the effects of the tamarind shell moisture content and the temperature of their extrusion on the dietary fiber content and physiochemical properties, such as water absorption capacity (WAC), oil absorption capacity (OAC), and glucose dialysis retardation index (GDRI) of the extrudates, were estimated. Moreover, the effects of the extrusion variables on the total phenolic and total flavonoid contents and on the antioxidant capacity of the tamarind shell were evaluated. The dry powdered tamarind shell was conditioned to have 32 or 39 g of water per 100 g of shell, prior to being subjected to extrusion. Subsequently, the conditioned samples were processed at 90°C, 100°C and 110°C in a single screw extruder. A non-extruded tamarind shell was taken as a control. The extrusion resulted in a 138.3% increase in the soluble dietary fiber content, along with 40.3% and 18.4% reductions of total phenolic and total flavonoid contents, respectively. The antioxidant capacity of the tamarind shell with moisture content of 32 g/100 g extruded at 100°C and 110°C was similar to that of non-extruded material. Moreover, the extruded products had the higher OAC compared to that of the control and they displayed an excellent response with regard to controlling the GDRI. The extrusion advantageously modified properties of the tamarind shell particularly when material with a moisture content of 32 g/100 g at 100°C was processed.
Źródło:
Polish Journal of Food and Nutrition Sciences; 2023, 73, 3; 278-288
1230-0322
2083-6007
Pojawia się w:
Polish Journal of Food and Nutrition Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growth and characterisation of LWIR T2SL on (100)-, (211)- and (311)-oriented GaSb substrates
Autorzy:
Lubyshev, Dmitri
Fastenau, Joel M.
Kattner, Michael
Frey, Philip
Nelson, Scott A.
Flick, Ryan
Wu, Ying
Liu, Amy W. K.
Szymanski, Dennis E.
Martinez, Becky
Furlong, Mark J.
Dennis, Richard
Bundas, Jason
Sundaram, Mani
Powiązania:
https://bibliotekanauki.pl/articles/2204213.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:
focal plane arrays
InAs/InAsSb
photodetectors
long wavelength infrared type-II superlattice
metamorphic buffers
superlattice period reduction
Opis:
Ga-free InAs/InAsSb type-II superlattice structures grown on GaSb substrates have demonstrated high performance for mid-wave infrared applications. However, realisation of long wavelength infrared photodetectors based on this material system still presents challenges, especially in terms of reduced quantum efficiency. This reduction is due, in part, to the increased type-II superlattice period required to attain longer wavelengths, as thicker periods decrease the wave-function overlap for the spatially separated quantum wells. One way to improve long wavelength infrared performance is to modify the type-II superlattice designs with a shorter superlattice period for a given wavelength, thereby increasing the wave-function overlap and the resulting optical absorption. Long wavelength infrared epitaxial structures with reduced periods have been realised by shifting the lattice constant of the type-II superlattice from GaSb to AlSb. Alternatively, epitaxial growth on substrates with orientations different than the traditional (100) surface presents another way for superlattice period reduction. In this work, the authors evaluate the performance of long wavelength infrared type-II superlattice detectors grown by molecular beam epitaxy using two different approaches to reduce the superlattice period: first, a metamorphic buffer to target the AlSb lattice parameter, and second, structures lattices matched to GaSb using substrates with different orientations. The use of the metamorphic buffer enabled a ~30% reduction in the superlattice period compared to reference baseline structures, maintaining a high quantum efficiency, but with the elevated dark current related to defects generated in the metamorphic buffer. Red-shift in a cut-off wavelength obtained from growths on highindex substrates offers a potential path to improve the infrared photodetector characteristics. Focal plane arrays were fabricated on (100), (311)A- and (211)B-oriented structures to compare the performance of each approach.
Źródło:
Opto-Electronics Review; 2023, 31, Special Issue; art. no. e144568
1230-3402
Pojawia się w:
Opto-Electronics Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Book review : Wiggins, Bradley E. (2019). The Discursive Power of Memes in Digital Culture Ideology: Semiotics, and Intertextuality. New York: Routledge.
Autorzy:
Martínez-Cardama, Sara
García -López, Fátima
Powiązania:
https://bibliotekanauki.pl/articles/2098509.pdf
Data publikacji:
2022-08-11
Wydawca:
Krakowskie Towarzystwo TERTIUM
Źródło:
The European Journal of Humour Research; 2022, 10, 2; 170-173
2307-700X
Pojawia się w:
The European Journal of Humour Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Solar generation estimation in electric power systems for prospective frequency control studies
Autorzy:
Martínez-García, A. A.
Torres-Breffe, O. E.
Vilaragut-Llanes, M.
Delgado-Fernandez, O.
Szpytko, J.
Salgado-Duarte, Y.
Powiązania:
https://bibliotekanauki.pl/articles/2172499.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
green shipping
solar power
electric power systems
energy storage systems
photovoltaic power generation
cuban electrical system
energy sources
photo voltage solar generation
Opis:
Increasing the presence of non-conventional clean energy sources in Electrical Power Systems (EPS) is a global strategic goal. Particularly, photovoltaic systems are attractive due to their versatility, low maintenance cost, easy installation, noiselessness, etc. However, the integration of photovoltaic systems into EPS increases the necessary regulation actions performed by system generators due to stochastic fluctuations of solar radiation, especially on cloudy days. Even using complex models that consider many variables, solar irradiation and its corresponding photovoltaic power generation are difficult variables to forecast with accuracy in cloudy day scenarios. To address this problem, Energy Storage Systems (BESS) have been proposed as a solution to mitigate the variability of photovoltaic generation, which reduce the need to use traditional spinning reserves and provide auxiliary grid services. The BESS selection required to mitigate photovoltaic generation is directly related to the worst-case daily variability of photovoltaic generation in the short term. This paper proposes a practical estimation of daily perspective photo voltage solar generation curve in Electrical Power Systems.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2022, 16, 2; 211--217
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Consumer protection and safeguards: proper information on the geographical origin of ingredients. The case of olive oils
Tutela e salvaguardia del consumatore: una corretta informazione sulla provenienza geografica degli ingredienti. Il caso dell’olio d’oliva
Autorzy:
Martínez Gutiérrez, Ángel
Vázquez Ruano, Trinidad
Powiązania:
https://bibliotekanauki.pl/articles/2040668.pdf
Data publikacji:
2021-12-30
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
indicazioni geografiche qualificate
tutela del consumatore
salvaguardia del consumatore
olio d’oliva
qualified geographic names
consumer protection
consumer safeguards
olive oils
kwalifikowane oznaczenia geograficzne
ochrona konsumentów
bezpieczeństwo konsumentów
oliwa z oliwek
Opis:
Since the nineties of the previous century, qualified geographic names have been covered by a harmonised EU-wide protection system whose main feature is the recognition of exclusive rights. Such rights are generally parallel to those deriving from the registration of a brand. Accordingly, they are not solely protected by the measures provided in the rules on unfair competition but also by a EU protection system based on granting the group of traders that had sought and obtained recognition of the protected designation of origin or geographical indication a monopoly over the use of a given geographic name and the possibility to seek remedy against any unlawful use of it. In this sense, the information provided generally benefits the market as well as merchants and consumers.
Fin dagli anni novanta del secolo scorso, le indicazioni geografiche qualificate sono incluse in un sistema di protezione armonizzato a livello di UE, la cui caratteristica principale è il riconoscimento dei diritti esclusivi. Tali diritti sono generalmente equivalenti (analoghi) alla registrazione di un marchio. Pertanto, esse sono tutelate non solo dalle misure previste dalla disciplina sulla concorrenza sleale, ma anche da un sistema di tutela comunitario che concede a un raggruppamento di operatori economici, che avevano chiesto e ottenuto la denominazione di origine protetta o l’indicazione geografica protetta, un monopolio per una determinata indicazione geografica e la possibilità di porre rimedio a qualsiasi uso illecito della stessa. In questo senso, le informazioni fornite vanno generalmente a vantaggio del mercato, dei commercianti e dei consumatori.
Od lat 90. ubiegłego wieku kwalifikowane oznaczenia geograficzne objęte są zharmonizowanym systemem ochrony obowiązującym w całej Unii Europejskiej. Główną cechą tego systemu jest uznawanie praw wyłącznych. Prawa te są zasadniczo równorzędne tym, które wynikają z rejestracji marki. Tym samym nie są one chronione wyłącznie środkami przewidzianymi w regulacjach dotyczących nieuczciwej konkurencji, ale podlegają również unijnemu systemowi ochrony polegającemu na przyznaniu grupie przedsiębiorców, którzy ubiegali się o uznanie chronionej nazwy pochodzenia lub chronionego oznaczenia geograficznego i je uzyskali, wyłączności na stosowanie danego oznaczenia geograficznego oraz możliwości podjęcia środków zaradczych w przypadku jego bezprawnego użycia. W tym sensie dostarczane informacje są ogólnie korzystne dla rynku, jak również dla handlowców i konsumentów.
Źródło:
Przegląd Prawa Rolnego; 2021, 2(29); 313-329
1897-7626
2719-7026
Pojawia się w:
Przegląd Prawa Rolnego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Participation of interferon type I during canine parvovirus infection
Autorzy:
Reyes-Cruz, T.
Martínez-Gómez, D.
Verdugo-Rodríguez, A.
Bustos-Martínez, J.
López-Islas, J.
Méndez-Olvera, E.T.
Powiązania:
https://bibliotekanauki.pl/articles/2087108.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
canine parvovirus
antiviral immunity
IFNβ
viral pathogenesis
Źródło:
Polish Journal of Veterinary Sciences; 2021, 24, 3; 375-384
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of pro- and anti-inflammatory interleukins in the mammary gland of goats experimentally infected with Staphylococcus chromogenes
Autorzy:
Ruiz-Romero, R.A.
Martínez-Gómez, D.
Cervantes-Olivares, R.A.
Díaz-Aparicio, E.
Ducoing-Watty, A.E.
Powiązania:
https://bibliotekanauki.pl/articles/2087265.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mastitis
Staphylococcus chromogenes
goats
qRT-PCR
interleukins
Źródło:
Polish Journal of Veterinary Sciences; 2020, 23, 4; 511-519
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Los desafíos en la lectura e interpretación de textos judeoespañoles
The Challenges in Reading and Interpreting of Judeo-Spanish Texts
Autorzy:
Kacprzak, Marta
Castellano Martínez, José María
Nalewajko, Paulina
Powiązania:
https://bibliotekanauki.pl/chapters/1032359.pdf
Data publikacji:
2020-07-09
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
novela sefardí
judeoespañol (ladino)
transcripción
Gulliver
Robison Crusoe
transcription
Sephardi novel
Judeo-Spanish (Ladino)
Robinson Crusoe
Opis:
Leer un texto aljamiado, es decir, un texto judeoespañol transcrito con caracteres hebreos constituye un reto. Es como armar un rompecabezas, puesto que la lectura consiste en descifrar las letras y anticipar los significados y la pronunciación de las palabras gracias a su estructura gramatical y su contexto de uso. Los problemas relacionados con el proceso de descifrado de las palabras sobre todo influyen en la pronunciación y la transcripción. El objetivo de este artículo consiste en presentar y comentar algunos problemas y dudas que surgen a la hora de leer y transcribir los textos judeoespañoles. Para ilustrar la cuestión hemos elegido fragmentos de dos ediciones de El asolado en la isla, así como del texto Los dos vyajes de Guliver: onde los lilipusyanos i onde los djigantes. El asolado en la izla es una de las adaptaciones sefardíes de la historia de Robinson Crusoe de Daniel Defoe. Las dos versiones que vamos a comentar se publicaron en aljamía hebraica en Beraha hameshuleshet o las tres luzes (hebr. La triple bendición o las tres luces); la primera versión salió a la luz en Salónica en 1880 o 1881, mientras que la segunda versión, se imprimió en Constantinopla en 1899 o 1900. El otro texto es una adaptación de una de las más célebres novelas de J. Swift, titulada Gulliver’s Travels. La versión sefardí elaborada por Ben Ghiat fue publicada en Esmirna en 1897 en el periódico El Meseret en la versión aljamiada original.
Reading a text printed in aljamía, that means written in Hebrew alphabet, can be considered as a challenge. It is like putting together a puzzle because reading consists of deciphering the letters and anticipating the meanings and pronunciation of the words due to its grammatical structure and its context of use. The problems related to the decryption process of the words above all influence the pronunciation and transcription. The aim of this article is to present and comment on some problems and doubts that arise when reading and transcribing the Judeo-Spanish texts. To illustrate the issue, we have chosen fragments from two editions of The isolated on the island (El asolado en la izla) and Two travels of Gulliver: among Lilliputians and Giants (Los dos vyajes de Guliver: onde los lilipusyanos i onde los djigantes). The isolated on the island is one of the Sephardic adaptations of the history of Robinson Crusoe by Daniel Defoe. The two versions we are going to comment on were published in hebrew aljamía in Beraha hameshuleshet o las tres luzes (hebr. The triple blessing or the three lights); the first version came to light in Thessaloniki in 1880 or 1881, while the second one was printed in Constantinople in 1899 or 1900. The other text is an adaptation of Gulliver’s Travels, one of the most celebrated novels by J. Swift. The Sephardic version elaborated by Ben Ghiat was published in Izmir in 1897 in the newspaper El Meseret in the original version in aljamía.
Źródło:
La traducción literaria en el contexto de las lenguas ibéricas; 102-118
9788323542841
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of convolutional neural networks using the fuzzy gravitational search algorithm
Autorzy:
Poma, Yutzil
Melin, Patricia
González, Claudia I.
Martínez, Gabriela E.
Powiązania:
https://bibliotekanauki.pl/articles/384794.pdf
Data publikacji:
2020
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
neural networks
convolutional neural network
fuzzy gravitational search algorithm
deep learning
Opis:
This paper presents an approach to optimize a Convolutional Neural Network using the Fuzzy Gravitational Search Algorithm. The optimized parameters are the number of images per block that are used in the training phase, the number of filters and the filter size of the convolutional layer. The reason for optimizing these parameters is because they have a great impact on performance of the Convolutional Neural Networks. The neural network model presented in this work can be applied for any image recognition or classification applications; nevertheless, in this paper, the experiments are performed in the ORL and Cropped Yale databases. The results are compared with other neural networks, such as modular and monolithic neural networks. In addition, the experiments were performed manually, and the results were obtained (when the neural network is not optimized), and comparison was made with the optimized results to validate the advantage of using the Fuzzy Gravitational Search Algorithm.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2020, 14, 1; 109-120
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Towards a Non-conformable Fractional Calculus of n-Variables
Autorzy:
Martínez, Francisco
Nápoles, Juan E. Valdés
Powiązania:
https://bibliotekanauki.pl/articles/1818655.pdf
Data publikacji:
2020
Wydawca:
Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:
function of several variables
fractional partial differential operators
funkcje wielu zmiennych
operatory różniczkowe
operatory cząsteczkowe
operatory ułamkowe
Opis:
In this paper we present an extension of the non-conformable local fractional derivative, to the case of functions of severalvariables. Results analogous to those known from the classic multivariatecalculus are presented. To show the strength of this approach, we show anextension of the Second Lyapunov Method to the non-conformable localfractional case.
Źródło:
Journal of Mathematics and Applications; 2020, 43; 87--98
1733-6775
2300-9926
Pojawia się w:
Journal of Mathematics and Applications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamic rheology and microstructure of starch gels affected by triticale genomic composition and developing stage
Autorzy:
Cornejo-Ramirez, Y.I.
Cinco-Moroyoqui, F.J.
Carvajal-Millan, E.
Brown-Bojorquez, F.
Rosas-Burgos, E.C.
Burgos-Hernandez, A.
Martinez-Cruz, O.
Del Toro-Sanchez, C.L.
Powiązania:
https://bibliotekanauki.pl/articles/24257.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Źródło:
International Agrophysics; 2019, 33, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fusarium graminearum sensu stricto associated with head blight on rye (Secale cereale L.) in Argentina
Autorzy:
Martinez, M.
Dinolfo, M.
Castanares, E.
Stenglein, S.
Powiązania:
https://bibliotekanauki.pl/articles/65720.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Fusarium head blight (FHB) is one of the most important diseases that occurs in cereal regions worldwide and causes serious economic damage. This disease can be caused by several Fusarium species with Fusarium graminearum sensu stricto being the most common pathogen isolated from several crops. The aim of this study was to report the occurrence of F. graminearum sensu stricto on rye grains collected from field samples in Argentina and to determine the potential ability to produce deoxynivalenol (DON), nivalenol (NIV) and zearalenone (ZEA). Based on morphological characteristics, the isolate was identified as F. graminearum sensu stricto. To confirm molecularly, portions of the RED and TRI genes were sequenced and showed 99% similarity with the F. graminearum sensu stricto sequences available in the NCBI database. The potential to produce DON, 15-acetyldeoxynivalenol (15-ADON) and ZEA was determined. Moreover, Koch´s postulates were carried out. To our knowledge, this is the first report of F. graminearum sensu stricto associated with rye kernels in Argentina.
Źródło:
Journal of Plant Protection Research; 2019, 59, 2
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
Structure, Morphology and Electrical Properties of CaTiO3 Ceramics Synthesized by the Solid-State Reaction Method
Autorzy:
Rocha-Rangel, E.
López-Hernández, J.
Castillo-Martínez, J. A.
Osorio-Ramos, J. J.
Calles-Arriaga, C. A.
Estrada-Guel, I.
Martínez-Sánchez, R.
Powiązania:
https://bibliotekanauki.pl/articles/352238.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
CaTiO3
solid state synthesis
electrical properties
insulating ceramics
Opis:
In this paper, explain the preparation of CaTiO3 ceramics synthesized by the solid-state reaction method. Calcium carbonate and titanium dioxide were high energy mixed in stoichiometric amounts, and the obtained mixture was calcined at different temperatures (800, 900, 1000 and 1300ºC) for 2h. The obtained samples were characterized by measurement of particle size, Energy Dispersive X-Ray (EDX) Analysis; differential thermal analysis, X-ray diffraction and SEM images. XRD patterns indicated that CaTiO3 ceramics with the structure of perovskite is obtained from calcined powders at 1,300°C for 2h. SEM images show the formation of a very fine and homogeneous morphology. The measured values of electrical resistivity were within the typical range of insulating materials and approach values corresponding to insulating ceramics.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 4; 1749-1753
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measurements of Concentration differences between Liquid Mixtures using Digital Holographic Interferometry
Autorzy:
Guerrero-Méndez, C.
Saucedo-Anaya, T.
Araiza-Esquivel, M.
Balderas-Navarro, R. E.
López-Martínez, A.
Olvera-Olvera, C.
Powiązania:
https://bibliotekanauki.pl/articles/221594.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Digital Holographic Interferometry
refractive index measurements
phase difference
full-field measurements
Opis:
We present an alternative method to detect and measure the concentration changes in liquid solutions. The method uses Digital Holographic Interferometry (DHI) and is based on measuring refractive index variations. The first hologram is recorded when a wavefront from light comes across an ordinary cylindrical glass container filled with a liquid solution. The second hologram is recorded after slight changing the liquid’s concentration. Differences in phase obtained from the correlation of the first hologram with the second one provide information about the refractive index variation, which is directly related to the changes in physical properties related to the concentration. The method can be used − with high sensitivity, accuracy, and speed − either to detect adulterations or to measure a slight change of concentration in the order of 0.001 moles which is equivalent to a difference of 0.003 g of sodium chloride in solutions. The method also enables to measure and calculate the phase difference among each pixel of two samples. This makes it possible to generate a global measurement of the phase difference of the entire sensed region.
Źródło:
Metrology and Measurement Systems; 2017, 24, 1; 19-26
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 41

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