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Aktivna i inteligentna polimerna ambalaža
Full text linkSuvremeno pakiranje prehrambenih namirnica mora osigurati zdravstvenu ispravnost
upakiranom proizvodu uz istovremeno zadržavanje visoke kvalitete namirnice. Jedno od
novijih načina pakiranja hrane, koji upravo omogućuje praćenje sigurnosti i kvalitete
upakiranih namirnica, je pakiranje u inteligentnu i aktivnu ambalažu.
U ovom radu prezentirat će se tehnologija i razvoj pametnih polimernih materijala za
pakiranje hrane. Definirat će se interaktivna ambalaža, senzori i indikatori u sustavima
inteligentnog pakiranja. Navest će se primjena barkodova, 2D barkodova, RFID i NFC
tehnologije u sustavima pametne ambalaže. Također će se prikazati primjena kromogenih
boja kao pametnih indikatora. U radu će se prikazati najčešće korišteni koncepti aktivne
ambalaže koji nastoje kontrolirati razinu kisika, vlage, temperature, sadržaj soli, šećera,
kiselina i CO2 unutar ambalažnog sustava. Također će se prikazati komercijalno dostupni
proizvodi za svaku navedenu kategoriju pametne ambalaže. Zakonski propisi koji se odnose
na aktivnu i inteligentnu ambalažu bit će također prezentiran u ovom radu
Aktivna i inteligentna polimerna ambalaža
No full textSuvremeno pakiranje prehrambenih namirnica mora osigurati zdravstvenu ispravnost upakiranom proizvodu uz istovremeno zadržavanje visoke kvalitete namirnice. Jedno od novijih načina pakiranja hrane, koji upravo omogućuje praćenje sigurnosti i kvalitete upakiranih namirnica, je pakiranje u inteligentnu i aktivnu ambalažu. U ovom radu prezentirat će se tehnologija i razvoj pametnih polimernih materijala za pakiranje hrane. Definirat će se interaktivna ambalaža, senzori i indikatori u sustavima inteligentnog pakiranja. Navest će se primjena barkodova, 2D barkodova, RFID i NFC tehnologije u sustavima pametne ambalaže. Također će se prikazati primjena kromogenih boja kao pametnih indikatora. U radu će se prikazati najčešće korišteni koncepti aktivne ambalaže koji nastoje kontrolirati razinu kisika, vlage, temperature, sadržaj soli, šećera, kiselina i CO2 unutar ambalažnog sustava. Također će se prikazati komercijalno dostupni proizvodi za svaku navedenu kategoriju pametne ambalaže. Zakonski propisi koji se odnose na aktivnu i inteligentnu ambalažu bit će također prezentiran u ovom radu.Modern food-packaging systems must ensure the health-safety of the packaged product while, at the same time, maintaining high quality of the food. One of the newer packaging methods that allow monitoring the safety and quality of packaged foods is achieved through intelligent and active packaging systems. This paper will present the technology and development of smart polymeric food packaging materials. Interactiv packaging, sensors and indicators in intelligent packaging systems will be defined. The application of barcodes, 2D barcodes, RFID and NFC technology will be mentioned. The application of chromogenic inks as smart indicators will also be presented. Moreover, the paper will present the most commonly used concepts of active packaging that are able to control the level of oxygen moisture, temperature, salt, sugar, acid and CO2 content within the packaging system. Commercially available products for each listed category will also be presented. Legislation on active and intelligent packaging will also be discussed in this paper
Mogućnosti poboljšanja optičkih, površinskih i mehaničkih svojstava otisaka s dodatkom nanočestica u uvjetima ubrzanog starenja u tehnici fleksotisak
Full text linkFleksotisak je tehnika direktnog visokog tiska koja se koristi u mnogobrojnim ambalažnim
proizvodima za otiskivanje na različite vrste materijala. Razvojem tehnologija izrade
tiskovnih formi i sustava za upravljenje podacima, fleksotisak zauzima svoje mjesto kao
jedna od prominentnih tehnika tiska koje preuzimaju tržište. Većim stupnjem standardizacije,
novim tehničkim rješenjima kod konstrukcije strojeva i bržim radnim procesom, povećava se
kvaliteta otiska ali i ekonomska učinkovitost.
U ovom diplomskom radu cilj je istražiti mogućnosti pobojšanja optičkih i mehaničkih
svojstava otisaka s dodatkom nanočestica u tehnici fleksotisak. U radu je korištena
komercijalna tiskarska boja u koju su dodane nanočestice u različitim koncentracijama. Radi
istraživanja utjecaja ubrzanog starenja na promatrana svojstva otisaka, dobiveni uzorci su
podvrgnuti ubrzanom starenju u trajanu od 12 i 24 sata te su na njima dodatno provedena
mjerenja optičkih i mehaničkih svojstava. Pretpostavljeno je da će dodatak nanočestica, u
različitim koncentracijama, u osnovnu tiskarsku boju, omogućiti dobivanje tiskarske boje i
otisaka s novim, poboljšanim svojstvima
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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