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Letteratura scientifica selezionata sul tema "Packaging matrix"

Autore: Grafiati

Pubblicato: 26 settembre 2023

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Articoli di riviste sul tema "Packaging matrix"

1

Zweben, Carl. "Metal-matrix composites for electronic packaging". JOM 44, n. 7 (luglio 1992): 15–23. http://dx.doi.org/10.1007/bf03222270.

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2

Robbani, Syifa, Farah Fahma e Sugiarto Sugiarto. "CELLULOSIC PADS AS MATRIX SACHET ANTIMICROBIAL: A REVIEW". AGROINTEK 15, n. 2 (3 giugno 2021): 554–65. http://dx.doi.org/10.21107/agrointek.v15i2.9366.

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The advancement of active packaging technology has contributed to the need for customer assurance of the quality and protection of fresh foods and agricultural products. An example of active packaging to maintain food quality and improve product protection is the use of antimicrobial pads. Antimicrobial pads are a type of active packaging that releases active agents into the headspace food packaging in order to prevent, inhibit or destroy the growth of microorganisms.. Antimicrobial pads are very easy to apply to food products by placing them on the bottom of the product or inserting them into the packaging material. This literature study discusses the characterization of cellulose as a major component in the manufacture of pads, techniques for the incorporation of antimicrobial compounds into pads, and suitable applications for the inhibition of microorganisms in food products. Apart from that, this literature study also discusses the advantages and disadvantages of antimicrobial pads as active packs.

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3

Aintila, A., e E. Järvinen. "Packaging of Dot‐matrix Electroluminescent Display Module". Microelectronics International 2, n. 2 (febbraio 1985): 14–17. http://dx.doi.org/10.1108/eb044170.

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4

Khurana, Amrik L., e Chi-Tang Ho. "Determination of Interaction of Packaging and Food Components with Packaging Matrix by HPLC". Journal of Liquid Chromatography 12, n. 9 (luglio 1989): 1679–86. http://dx.doi.org/10.1080/01483918908049534.

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5

Tajuddin, Tamrin, Irman Amri, Syach Reza Syamsuddin e Asih Ahistasari. "Proposed Packaging of Assar Fish Products with Methods Quality Function Deployment". Journal of Industrial System Engineering and Management 1, n. 2 (20 ottobre 2022): 41–47. http://dx.doi.org/10.56882/jisem.v1i2.8.

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Generally, selling fish asar by the community, the seller only wraps or packs fish asar in the traditional way, using banana leaves. Traditional asar fish packaging is still carried out in the Sorong city area, especially in the market and its surroundings. So action or change is needed so that the asar fish which is the interest of the residents of the city of Sorong is still protected by the cleanliness and quality of the asar fish product. The packaging used to pack asar fish products is Polypropylene (PP) plastic packaging. The choice of packaging with this material is because it is strong, resistant to chemicals, heat, oil, transparent, and flexible. Quality Function Deployment is a product development system that starts from product design, manufacturing processes until the product is in the hands of consumers, where product development is based on consumer desires. This study aims to produce packaging designs for asar fish products that meet consumer desires using the Quality Function Deployment method. The research begins with distributing questionnaires, identifying consumer desires, determining the value of importance rating, technical response, technical correlation matrix, relation matrix, planning matrix, determining target specifications, making House of Quality. The resulting packaging design is a rectangle measuring 35 cm x 18 cm, made of Polypropylene (PP) plastic, packaging using a sticker measuring 12 cm x 12 cm, and the packaging is pressed using a sealer.

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6

Bastarrachea, Luis, Dana Wong, Maxine Roman, Zhuangsheng Lin e Julie Goddard. "Active Packaging Coatings". Coatings 5, n. 4 (6 novembre 2015): 771–91. http://dx.doi.org/10.3390/coatings5040771.

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Active food packaging involves the packaging of foods with materials that provide an enhanced functionality, such as antimicrobial, antioxidant or biocatalytic functions. This can be achieved through the incorporation of active compounds into the matrix of the commonly used packaging materials, or by the application of coatings with the corresponding functionality through surface modification. The latter option offers the advantage of preserving the packaging materials’ bulk properties nearly intact. Herein, different coating technologies like embedding for controlled release, immobilization, layer-by-layer deposition, and photografting are explained and their potential application for active food packaging is explored and discussed.

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7

Shao, Linying, Yuewei Xi e Yunxuan Weng. "Recent Advances in PLA-Based Antibacterial Food Packaging and Its Applications". Molecules 27, n. 18 (13 settembre 2022): 5953. http://dx.doi.org/10.3390/molecules27185953.

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In order to reduce environmental pollution and resource waste, food packaging materials should not only have good biodegradable ability but also effective antibacterial properties. Poly(lactic acid) (PLA) is the most commonly used biopolymer for food packaging applications. PLA has good physical properties, mechanical properties, biodegradability, and cell compatibility but does not have inherent antibacterial properties. Therefore, antibacterial packaging materials based on PLA need to add antibacterial agents to the polymer matrix. Natural antibacterial agents are widely used in food packaging materials due to their low toxicity. The high volatility of natural antibacterial agents restricts their application in food packaging materials. Therefore, appropriate processing methods are particularly important. This review introduces PLA-based natural antibacterial food packaging, and the composition and application of natural antibacterial agents are discussed. The properties of natural antibacterial agents, the technology of binding with the matrix, and the effect of inhibiting various bacteria are summarized.

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8

Dörnyei, Krisztina Rita, Anna-Sophia Bauer, Victoria Krauter e Carsten Herbes. "(Not) Communicating the Environmental Friendliness of Food Packaging to Consumers—An Attribute- and Cue-Based Concept and Its Application". Foods 11, n. 9 (9 maggio 2022): 1371. http://dx.doi.org/10.3390/foods11091371.

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While consumer understanding of and preferences for environmentally friendly packaging options have been well investigated, little is known about the environmentally friendly packaging attributes communicated to consumers by suppliers via packaging cues. We thus propose a literature-based attribute-cue matrix as a tool for analyzing packaging solutions. Using a 2021 snapshot of the wafer market in nine European countries, we demonstrate the tool’s utility by analyzing the cues found that signal environmentally friendly packaging attributes. While the literature suggests that environmentally friendly packaging is increasingly used by manufacturers, our analysis of 164 wafer packages shows that communication is very limited except for information related to recyclability and disposal. This is frequently communicated via labels (e.g., recycling codes, Green Dot) and structural cues that implicitly signal reduced material use (e.g., less headspace and few packaging levels). Our attribute–cue matrix enables researchers, companies, and policymakers to analyze and improve packaging solutions across countries and product categories. Our finding that environmentally friendly packaging attributes are not being communicated to consumers underscores a pressing need for better communication strategies. Both direct on-pack and implicit communication should help consumers choose more environmentally friendly packaging. Governments are encouraged to apply our tool to identify communication gaps and adopt labeling regulations where needed.

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9

Zhao, Zhan Feng. "High Power LED Packaging Materials and Tooling". Advanced Materials Research 763 (settembre 2013): 229–33. http://dx.doi.org/10.4028/www.scientific.net/amr.763.229.

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The high power light emitting diodes unit internal structure was elaborated from materials and tooling point of view, the unit matrix frame layout for mass production was presented for copper sheet stamping. The tooling stations were decomposed and optimized for packaging processes. The optical lens body molding cavity layout was proposed for unit matrix transfer molding. The packaging materials and tooling was analyzed from the materials processes and automatic stamping & transfer molding. Design scheme for packaging materials processes can be referenced for high power LED unit devices.

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Muzeza, Celia, Veronica Ngole-Jeme e Titus Alfred Makudali Msagati. "The Mechanisms of Plastic Food-Packaging Monomers’ Migration into Food Matrix and the Implications on Human Health". Foods 12, n. 18 (7 settembre 2023): 3364. http://dx.doi.org/10.3390/foods12183364.

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Abstract (sommario):

The development of packaging technology has become a crucial part of the food industry in today’s modern societies, which are characterized by technological advancements, industrialization, densely populated cities, and scientific advancements that have increased food production over the past 50 years despite the lack of agricultural land. Various types of food-packaging materials are utilized, with plastic being the most versatile. However, there are certain concerns with regards to the usage of plastic packaging because of unreacted monomers’ potential migration from the polymer packaging to the food. The magnitude of monomer migration depends on numerous aspects, including the monomer chemistry, type of plastic packaging, physical–chemical parameters such as the temperature and pH, and food chemistry. The major concern for the presence of packaging monomers in food is that some monomers are endocrine-disrupting compounds (EDCs) with a capability to interfere with the functioning of vital hormonal systems in the human body. For this reason, different countries have resolved to enforce guidelines and regulations for packaging monomers in food. Additionally, many countries have introduced migration testing procedures and safe limits for packaging monomer migration into food. However, to date, several research studies have reported levels of monomer migration above the set migration limits due to leaching from the food-packaging materials into the food. This raises concerns regarding possible health effects on consumers. This paper provides a critical review on plastic food-contact materials' monomer migration, including that from biodegradable plastic packaging, the monomer migration mechanisms, the monomer migration chemistry, the key factors that affect the migration process, and the associated potential EDC human health risks linked to monomers' presence in food. The aim is to contribute to the existing knowledge and understanding of plastic food-packaging monomer migration.

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Tesi sul tema "Packaging matrix"

1

Kim, Joong-Ho. "Modeling of package and board power distribution networks using transmission matrix and macro-modeling methods". Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/13864.

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2

Sun, Meng. "Retrovirus-Specific Differences in Matrix (MA) and Nucleocapsid (NC) Protein-Nucleic Acid Interactions: Implications for Genomic RNA Packaging". The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1343844761.

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3

Thomas, Ian MacIntyre. "The blending and permeability of polymers for packaging applications". Thesis, Brunel University, 1995. http://bura.brunel.ac.uk/handle/2438/5504.

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In this study, commercially available isotactic polypropylene (PP) and nylon-6 (PA6) blends and laminates were prepared, to develop a material with optimal water vapour and oxygen barrier properties. The effect of compatibilizers on phase dispersion has been investigated using three commercial Polybond's, PB3002, PB1001, and PB3009. Three compatibilizers prepared in-house were also used as, maleic anhydride(MA) grafted on PP, MA and butyl methacrylate(BMA) co-polymer grafted on PP, and BMA grafted on low density polyethylene. The effect of two silanes( methacrylate functional and vinyl functional) on PP were also investigated and also the plasticization of PA6 with formic acid. The results were compared with a commercial blend of PP and PA6, Orgalloy R-6000. Light microscopy with phase and fluorescence contrast has been used for morphological evaluation. Chemical changes were studied by Fourier Transform Infrared Spectroscopy and rheology by dynamic and steady state measurements. Barrier properties were determined gravimetrically for water vapour and organic solvents, and for oxygen by an Oxtran apparatus. The results have shown that phase dispersion can be more easily explained by molecular interactions than by the rheological parameters. The blend slip factor has been improved however by compatibilizers and consequently the phase dispersion, which had little effect on the barrier properties of the blends and indeed the laminates were more effective water vapour barriers. The availability of particular functional groups, which can interact with the permeant is the most important parameter, which can be affected by processing and blending conditions. The addition of hydrophobic functional groups into polypropylene was therefore the most effective method for enhancing the barrier properties of polypropylene. Cross-linking of the matrix polymer has improved the barrier properties to a lesser extent. It has also been shown, that PP solvent permeability (particularly di-chloromethane) can be improved, by silane addition.

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Mossor, Charles W. "Electrical Breakdown of Thermal Spray Alumina Ceramic Applied to AlSiC Baseplates Used in Power Module Packaging". Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/33543.

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Thermal spray coatings offer new alternatives in the production of electronic power modules that use alumina ceramic as an isolation layer. Current processes use direct bond copper (DBC) soldered to a nickel plated copper heat spreader. A coefficient of thermal expansion (CTE) mismatch exists between copper and alumina and leads to reliability issues that arise due to product failure during thermal cycling and lifetime operation. The substitution of an AlSiC metal matrix composite (MMC) heat spreader baseplate addresses the problem of CTE mismatch and will reduce the number of product failures related to cracking and delamination caused by this pronounced mismatch in the thermal expansion coefficient.. The substitution of an AlSiC (MMC) heat spreader baseplate also allows the production process to be achieved with a fewer number of metallization layers. Thermal spray can apply alumina ceramic coatings directly to the AlSiC (MMC) baseplates. A reduction in process steps will lead to a reduction in manufacturing costs, the main driving objective in Microelectronics Industries. Thermal spray coatings have a major problem since they have a porous microstructure which can trap undesired moisture. The moisture basically causes the coatings to have a lower dielectric breakdown voltage and a higher leakage current at normal operating voltages. This problem can be eliminated by manufacturing the electronic power modules in a controlled environment and packaging the devices in a hermetically sealed package. This thesis analyzes the data obtained from direct-voltage dielectric breakdown and direct-voltage leakage current tests conducted on coupons manufactured using the thermal plasma spray coating process and the thermal high-velocity oxyfuel (HVOF) coating process. ASTM specifications defining appropriate testing procedures are used in testing the dielectric strength of these coupons. Issues relating to the dielectric strength and dielectric leakage current are evaluated and validated at the Microelectronics Laboratory at Virginia Polytechnic Institute & State University. The objective to conduct this research study using plasma and HVOF alumina coatings as dielectric isolation layers is to support the Microelectronics Industries in developing a product with increased reliability at a lower manufacturing cost.
Master of Science

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5

Penelope, Raphaël. "Développement de filtres solides pour un piégeage irréversible de l'iode gazeux et directement convertibles en matrice de conditionnement". Electronic Thesis or Diss., Montpellier, Ecole nationale supérieure de chimie, 2022. http://www.theses.fr/2022ENCM0020.

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Le projet consiste à développer des filtres à iode à base de phosphates d'argent ou de vanadates de plomb afin de capter et de conditionner des déchets ultimes. Les filtres à iode actuels, à base d'alumine ou de silice, nécessitent en effet des traitements complexes, sources de déchets secondaires, pour assurer une forme compatible avec les conditionnements envisagés. Plutôt que de qualifier de nouveaux matériaux de conditionnement adaptés à ces filtres, une solution pragmatique consiste donc à développer des filtres qui soient, à une étape de traitement thermique près, un précurseur de la matrice de conditionnement. Au travers de cette thèse, on se propose d'élaborer des supports à porosité contrôlée/hiérarchique à base majoritaire de phosphate d'argent ou de vanadate de plomb. Dans les matériaux à porosité hiérarchique, les espèces sont d'abord transportées dans les macropores, passent ensuite dans les mésopores pour accéder finalement aux micropores. Il est donc essentiel de maîtriser la structure porale initiale en fonction des différentes conditions de synthèse. Ces supports seront ensuite fonctionnalisés pour générer des sites actifs, à base d'argent dans le premier cas et à base de plomb dans le second, pour la capture de l'iode. Les supports fonctionnalisés seront ensuite testés sur un banc de capture de l'iode avec de l'iode 127, stable, dans différentes conditions pour qualifier l'impact de différents paramètres sur l'efficacité de capture. Après avoir été chargés en iode jusqu'à atteindre leur capacité maximale de fixation, la transformation des filtres en matrice de conditionnement par traitement thermique sera étudiée
The project involves the development of iodine filters based on silver phosphates or lead vanadates to capture and package ultimate waste. The current iodine filters, based on alumina or silica, require complex treatments, sources of secondary waste, to ensure a compatible form with the contemplated packaging. Rather than qualify new conditioning materials adapted to these filters, a pragmatic solution is therefore to develop filters which are, at a heat treatment step, a precursor of the conditioning matrix. Through this thesis, we propose to develop porous supprt controlled/hierarchical majority based on silver phosphate or lead vanadate. In materials with hierarchical porosity, the species are first transported in the macropores, then pass into the mesopores to finally reach the micropores. It is therefore essential to control the initial pore structure according to the different synthesis conditions. These supports will then be functionalized to generate active sites, based on silver in the first case and lead based in the second, for the capture of iodine. The functionalized supports will then be tested on an iodine capture bench with stable iodine 127 under different conditions to qualify the impact of different parameters on the capture efficiency. After having been loaded in iodine until reaching their maximum fixing capacity, the transformation of the filters into a conditioning matrix by heat treatment will be studied

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6

Cozzo, Giulia Maria Angela. "Materiali e tecnologie per l'elettronica di potenza". Doctoral thesis, Università di Catania, 2015. http://hdl.handle.net/10761/3824.

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L oggetto della seguente tesi è lo studio e lo sviluppo di materiali nanostrutturati a base polimerica per dispositivi utilizzati nell elettronica di potenza. L obiettivo della tesi è quello di progettare e quindi sviluppare, tramite materiali e tecnologie innovative, nano compositi polimerici da utilizzare come composti di incapsulamento per dispositivi elettronici. Lo scopo della ricerca è riuscire ad ottenere nanocompositi con proprietà confrontabili ai prodotti commerciali o comunque studiare soluzioni innovative da valutare come possibili packaging di dispositivi di potenza. Il lavoro ha inoltre compreso lo studio e l effetto dei molteplici parametri coinvolti nell intero sistema tramite lo sviluppo di un modello ad elementi finiti. La valutazione di tutti i fenomeni interessati è stata quindi propedeutica all ottimizzazione del modello ai fini di ottenere un packaging altamente conduttivo.

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Jones, Christopher P. "Primer tRNA annealing by human immunodeficiency virus type 1". The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1337962197.

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Perron, Christophe. "Définition et mise en oeuvre d'un matériau composite à matrice métallique pour les packagings d'électronique embarquée". Thesis, Bordeaux, 2017. http://www.theses.fr/2017BORD0646/document.

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Les packagings d’électronique embarquée sont actuellement en alliages d’aluminium. A partir d’une étude de sélection des matériaux, complétée par une simulation numérique thermique,nous avons démontré qu’un matériau composite constitué d’une matrice aluminium et de fibres de carbone à forte conductivité thermique, représente un fort potentiel de gain de masse sur ces équipements. Cependant, le couplage de ces deux matériaux génère des problèmes d’élaboration en raison d’incompatibilités fortes parmi lesquelles un mouillage très faible du carbone par l’aluminium liquide et une réactivité chimique élevée qui conduit à la formation de carbures d’aluminium préjudiciables pour le matériau final. Deux voies d’élaboration distinctes ont été envisagées : Une voie liquide où l’utilisation d’un agent de mouillage (un sel fluoré) a permis d’obtenir la montée par capillarité du métal dans des mèches de fibres. Une voie solide basée sur une technique originale d’empilements de feuillets d’aluminium et de fibres de carbone avec le procédé de Spark Plasma Sintering (SPS). .La seconde technique s’est révélée prometteuse en permettant d’obtenir des échantillons multicouches sans porosités, un endommagement très limité des fibres et une architecture contrôlée.Notre étude a montré que la formation de carbures d’aluminium est limitée. De plus, une meilleure compréhension du SPS ou l’application d’un revêtement sur les fibres devraient permettre d’éviter la formation de ces carbures. Les tentatives de caractérisations mécanique et thermique effectuées sur ces échantillons donnent un premier aperçu de l’efficacité du renforcement de l’aluminium par les fibres de carbone
Embedded electronic packagings are currently made of aluminum. A first study – basedupon a material selection method completed by numerical analysis – showed that a metal matrixcomposite made of aluminum and highly thermal conductive continuous carbon fibers represents ahigh potential upon weight savings for those equipments. Though, coupling these componentsrepresents numerous challenges due to their incompatibility such as a really low wetting of carbonliquidaluminum system and its unavoidable chemical reactivity that leads to the formation ofaluminum carbides that are harmful for the final material. Two manufacturing routes were considered: A liquid route using a wetting agent (fluorinated salts) led the metal to rise alongcarbon fibers by capillarity. A solid route based upon a novel technique of aluminum foils and carbon fibersstacking using the Spark Plasma Sintering (SPS) process.This second technique revealed to be very promising and allowed to obtain multilayer samples with noporosities, highly limited fiber damages and controlled composite architecture. Our study shows thataluminum carbides formation is limited. Moreover, a deeper comprehension of SPS process or thedeposit of fiber coatings would prevent this carbide formation. Attempts of mechanical and thermalcharacterization led upon such samples give a first overview of the efficiency of the aluminumreinforcement by carbon fibers

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Foschi, Eleonora <1990&gt. "System innovation and life cycle thinking in packaging value chain: the circularity of plastics". Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amsdottorato.unibo.it/9460/1/Foschi_Eleonora_Tesi.pdf.

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Compared to other, plastic materials have registered a strong acceleration in production and consumption during the last years. Despite the existence of waste management systems, plastic_based materials are still a pervasive presence in the environment, with negative consequences on marine ecosystem and human health. The recycling is still challenging due to the growing complexity of product design, the so-called overpackaging, the insufficient and inadequate recycling infrastructure, the weak market of recycled plastics and the high cost of waste treatment and disposal. The Circular economy package, the European Strategy for plastics in a circular economy and the recent European Green Deal include very ambitious programmes to rethink the entire plastic value chain. As regards packaging, all plastic packaging will have to be 100% recyclable (or reusable) and 55% recycled by 2030. Regions are consequently called upon to set up a robust plan able to fit the European objectives. It takes on greater importance in Emilia Romagna where the Packaging valley is located. This thesis supports the definition of a strategy aimed to establish an after-use plastics economy in the region. The PhD work has set the basis and the instruments to establish the so-called Circularity Strategy with the aim to turn about 92.000t of plastic waste into profitable secondary resources. System innovation, life cycle thinking and participative backcasting method have allowed to deeply analyse the current system, orientate the problem and explore sustainable solutions through a broad stakeholder participation. A material flow analysis, accompanied by a barrier analysis, has supported the identification of the gaps between the present situation and the 2030 scenario. Eco-design for and from recycling (and a mass _based recycling rate (based on the effective amount of plastic wastes turned into secondary plastics), valorized by a value_based indicator, are the key-points of the action plan.

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Lemettre, Sylvain. "Encapsulation sous vide de micro-bolomètres à basse température". Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS524.

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Plusieurs catégories de MEMS nécessitent un environnement sous vide pour fonctionner de manière optimale, tel le micro-bolomètre. Le fonctionnement optimal de ce détecteur, à la base des imageurs infrarouge non refroidis, nécessite qu’il soit thermiquement isolé, et donc qu’il évolue dans une atmosphère raréfiée (< 10-2 mbar). Le maintien sous vide d’une matrice bolométrique durant la durée de vie d'une dizaine d’années du composant est réalisé par une encapsulation dans un boîtier de très faible volume (de 0,5 à 30 µL).Cette encapsulation sous vide fait appel à deux techniques complémentaires : le scellement hermétique sous vide et l’intégration d’un dispositif d’absorption du gaz dans la cavité, appelé getter. La technique de scellement donnant un joint de scellement suffisamment hermétique (<10-14 atm.cm3.s-1) est la soudure métallique. Le getter est un film mince métallique à base de métaux de transition. Il acquiert une activité de sorption lorsqu’il est chauffé.Les procédés d’encapsulation sous vide de l’état de l’art permettent l’encapsulation de micro-bolomètres à des températures de 300°C. Mais il est fort probable que les futurs matériaux micro-bolométriques en cours de développement ne supporteront pas des températures de recuit supérieures à 280°C. Leur encapsulation demande donc la mise à disposition d’un nouveau procédé de scellement sous vide à plus basse température et d’un nouveau film getter s’activant aussi à basse température.Ces deux techniques ont par conséquent été développées, au moyen de caractérisations en laboratoire et de tests sur composants industriels
Some kinds of MEMS like micro-bolometers require vacuum to operate optimally. This IR sensor is the cornerstone for uncooled infrared detection. Its best sensing capacity is achieved by thermal insulation, which is realized by placing it under vacuum (< 10-2 mbar). The vacuum is maintained throughout the camera lifetime thanks to a microvolume packaging (0.5 to 30 µL).The MEMS vacuum packaging implies the combination of two complementary technical solutions: first hermetic sealing, then getter device integration absorbing internal gas. The sealing technique retained (which enables leak rate <10-14 atm.cm3.s-1) is the metallic bonding. The getter is a thin transition metal film. When activated by an annealing, its surface traps gaseous molecules. The sorption process of the getter is ideally activated during the sealing process of the bonding.The typical temperature packaging process for micro-bolometers is 300°C. It is expected that sensibility of new types of micro-bolometers materials will be degraded if they are exposed to temperatures higher than 280°C. Consequently, their encapsulation require the elaboration of a new low temperature packaging technology.Such a technology has been developed based on experimental studies in laboratory and tests under industrial conditions

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Più fonti

Libri sul tema "Packaging matrix"

1

Randall, Michael S. Processing, characterization and modelling of borosilicate glass matrix-particulate silicon nitride composites, containing controlled additions of porosity, for use in high speed electronic packaging. 1993.

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2

Go, Simon. Hong Kong Apothecary: A Visual History of Chinese Medicine Packaging. MCCM Creations, 2003.

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3

Go, Simon. Hong Kong Apothecary: A Visual History of Chinese Medicine Packaging. Princeton Architectural Press, 2003.

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Capitoli di libri sul tema "Packaging matrix"

1

Alam, Md Aftab, Rizwana Khatoon, Shamsul Huda e Pramod Kumar Sharma. "Review on Advanced Food Packaging Materials Based on Functional Biopolymer Matrix". In Biomaterials in Food Packaging, 181–218. New York: Jenny Stanford Publishing, 2022. http://dx.doi.org/10.1201/9781003256786-8.

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2

Tong, Xingcun Colin. "Thermally Conductive Polymer Matrix Composites". In Advanced Materials for Thermal Management of Electronic Packaging, 201–32. New York, NY: Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-7759-5_5.

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3

Tong, Xingcun Colin. "Thermally Conductive Ceramic Matrix Composites". In Advanced Materials for Thermal Management of Electronic Packaging, 277–304. New York, NY: Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-7759-5_7.

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Tong, Xingcun Colin. "High Thermal Conductivity Metal Matrix Composites". In Advanced Materials for Thermal Management of Electronic Packaging, 233–76. New York, NY: Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-7759-5_6.

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Tong, Xingcun Colin. "Monolithic Carbonaceous Materials and Carbon Matrix Composites". In Advanced Materials for Thermal Management of Electronic Packaging, 169–200. New York, NY: Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-7759-5_4.

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Guo, Linghua, Tiedou Xing, Yan Chen e Guodong Liu. "Application of Matrix Rotating Screening in Halftone Information Hiding Technology". In Advanced Graphic Communications, Packaging Technology and Materials, 211–19. Singapore: Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-10-0072-0_28.

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Cakmak, Hulya, e Ece Sogut. "Functional Biobased Composite Polymers for Food Packaging Applications". In Reactive and Functional Polymers Volume One, 95–136. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43403-8_6.

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AbstractBiobased polymers are of great interest due to the release of tension on non-renewable petroleum-based polymers for environmental concerns. However, biobased polymers usually have poor mechanical and barrier properties when used as the main component of coatings and films, but they can be improved by adding nanoscale reinforcing agents (nanoparticles - NPs or fillers), thus forming nanocomposites. The nano-sized components have a larger surface area that favors the filler-matrix interactions and the resulting material yield. For example, natural fibers from renewable plants could be used to improve the mechanical strength of the biobased composites. In addition to the mechanical properties, the optical, thermal and barrier properties are mainly effective on the selection of type or the ratio of biobased components. Biobased nanocomposites are one of the best alternatives to conventional polymer composites due to their low density, transparency, better surface properties and biodegradability, even with low filler contents. In addition, these biomaterials are also incorporated into composite films as nano-sized bio-fillers for the reinforcement or as carriers of some bioactive compounds. Therefore, nanostructures may provide antimicrobial properties, oxygen scavenging ability, enzyme immobilization or act as a temperature or oxygen sensor. The promising result of biobased functional polymer nanocomposites is shelf life extension of foods, and continuous improvements will face the future challenges. This chapter will focus on biobased materials used in nanocomposite polymers with their functional properties for food packaging applications.

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Kohlhepp, Daniel B., e Kimberly J. Kohlhepp. "Land Packaging". In Real Estate Development Matrix, 47–75. Routledge, 2018. http://dx.doi.org/10.1201/9781315180779-7.

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Swain, S. K. "The use of nano-boron nitride reinforcements in composites for packaging applications". In Advances in Ceramic Matrix Composites, 678–89. Elsevier, 2014. http://dx.doi.org/10.1533/9780857098825.3.678.

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Mizielińska, Małgorzata, e Artur Bartkowiak. "Overview of Food Antimicrobial Packaging". In Food Preservation and Packaging - Recent Process and Technological Advancements [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.108666.

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Acutely due to awareness that food products are highly vulnerable to microbial contamination, the food industry constantly tries to uncover new methods for the preservation of their products in order to guarantee their goods and processes continue to offer the highest quality and uphold safety standards throughout the production, storage, and distribution chain. Antimicrobial food packaging can play an important role in food shelf-life extension through the inhibition of microorganism growth present on the surface of food products. Antimicrobial packaging materials containing active substances incorporated into a polymer matrix or as surface coatings have begun to receive more attention for their use as antimicrobial control agents in food packaging systems. The most commonly used packaging materials are paper and plastics. However, from the ecological point of view, biopolymer-based materials have recently garnered more attention in the development of antimicrobial packaging as an alternative, due to their nontoxic biodegradability. In addition, the ongoing global spread of the pandemic caused by the SARS-CoV-2 has led to a preference for fresh food packaged in single-use food coverings. In order to address customer concerns and safeguard their health, the packaging industry could implement additional health safety measures, such as active packaging with antiviral properties.

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Atti di convegni sul tema "Packaging matrix"

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Chamund, D. "Bi-directional switch packaging for higher power matrix converters". In IEE Seminar Matrix Converters. IEE, 2003. http://dx.doi.org/10.1049/ic:20030049.

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Braunisch, Henning, e Adel Elsherbini. "Crosstalk reduction by matrix matching". In 2016 IEEE Electrical Design of Advanced Packaging and Systems (EDAPS). IEEE, 2016. http://dx.doi.org/10.1109/edaps.2016.7874442.

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Braunisch, Henning, e Adel Elsherbini. "Crosstalk reduction by matrix matching". In 2015 IEEE 24th Electrical Performance of Electronic Packaging and Systems (EPEPS). IEEE, 2015. http://dx.doi.org/10.1109/epeps.2015.7347163.

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Sahouli, Mohamed, e Anestis Dounavis. "Iterative Loewner Matrix Passivity Correction Technique". In 2020 IEEE Electrical Design of Advanced Packaging and Systems (EDAPS). IEEE, 2020. http://dx.doi.org/10.1109/edaps50281.2020.9312904.

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Yue, Cong, Yan Zhang, Zhili Hu, Johan Liu e Zhaonian Cheng. "Effects of the matrix shrinkage and filler hardness on the thermal conductivity of TCA". In High Density Packaging (ICEPT-HDP). IEEE, 2009. http://dx.doi.org/10.1109/icept.2009.5270540.

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Knezevic e Ferry. "A quantum many-body density matrix model for sub-femtosecond transport in mesoscopic structures". In Electrical Performance of Electronic Packaging. IEEE, 2004. http://dx.doi.org/10.1109/iwce.2004.1407325.

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Xie, Bin, Xunqing Shi e Xuejun Fan. "Accelerated Moisture Sensitivity Test Methodology for Stacked-Die Molded Matrix Array Package". In 2007 9th Electronics Packaging Technology Conference. IEEE, 2007. http://dx.doi.org/10.1109/eptc.2007.4469765.

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Han, Jiale, Haibin Chen, Ke Xue, Fei Wong, Karina Leung, Ivan Shiu e Jingshen Wu. "Wire sweep study for SOT package array matrix molding with simulation and experimental analysis". In 2011 12th International Conference on Electronic Packaging Technology & High Density Packaging (ICEPT-HDP 2011). IEEE, 2011. http://dx.doi.org/10.1109/icept.2011.6066692.

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Ivanov, Artem. "A Printed Electroluminescent Matrix Display: Implementation Details and Technical Solutions". In 2018 IMAPS Nordic Conference on Microelectronics Packaging (NordPac). IEEE, 2018. http://dx.doi.org/10.23919/nordpac.2018.8423861.

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Chou, Chiu-Chih, Thong Nguyen e Jose E. Schutt-Aine. "Impact of Partition Schemes in Loewner Matrix Macromodeling". In 2020 IEEE Electrical Design of Advanced Packaging and Systems (EDAPS). IEEE, 2020. http://dx.doi.org/10.1109/edaps50281.2020.9312918.

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Rapporti di organizzazioni sul tema "Packaging matrix"

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Galili, Naftali, Roger P. Rohrbach, Itzhak Shmulevich, Yoram Fuchs e Giora Zauberman. Non-Destructive Quality Sensing of High-Value Agricultural Commodities Through Response Analysis. United States Department of Agriculture, ottobre 1994. http://dx.doi.org/10.32747/1994.7570549.bard.

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The objectives of this project were to develop nondestructive methods for detection of internal properties and firmness of fruits and vegetables. One method was based on a soft piezoelectric film transducer developed in the Technion, for analysis of fruit response to low-energy excitation. The second method was a dot-matrix piezoelectric transducer of North Carolina State University, developed for contact-pressure analysis of fruit during impact. Two research teams, one in Israel and the other in North Carolina, coordinated their research effort according to the specific objectives of the project, to develop and apply the two complementary methods for quality control of agricultural commodities. In Israel: An improved firmness testing system was developed and tested with tropical fruits. The new system included an instrumented fruit-bed of three flexible piezoelectric sensors and miniature electromagnetic hammers, which served as fruit support and low-energy excitation device, respectively. Resonant frequencies were detected for determination of firmness index. Two new acoustic parameters were developed for evaluation of fruit firmness and maturity: a dumping-ratio and a centeroid of the frequency response. Experiments were performed with avocado and mango fruits. The internal damping ratio, which may indicate fruit ripeness, increased monotonically with time, while resonant frequencies and firmness indices decreased with time. Fruit samples were tested daily by destructive penetration test. A fairy high correlation was found in tropical fruits between the penetration force and the new acoustic parameters; a lower correlation was found between this parameter and the conventional firmness index. Improved table-top firmness testing units, Firmalon, with data-logging system and on-line data analysis capacity have been built. The new device was used for the full-scale experiments in the next two years, ahead of the original program and BARD timetable. Close cooperation was initiated with local industry for development of both off-line and on-line sorting and quality control of more agricultural commodities. Firmalon units were produced and operated in major packaging houses in Israel, Belgium and Washington State, on mango and avocado, apples, pears, tomatoes, melons and some other fruits, to gain field experience with the new method. The accumulated experimental data from all these activities is still analyzed, to improve firmness sorting criteria and shelf-life predicting curves for the different fruits. The test program in commercial CA storage facilities in Washington State included seven apple varieties: Fuji, Braeburn, Gala, Granny Smith, Jonagold, Red Delicious, Golden Delicious, and D'Anjou pear variety. FI master-curves could be developed for the Braeburn, Gala, Granny Smith and Jonagold apples. These fruits showed a steady ripening process during the test period. Yet, more work should be conducted to reduce scattering of the data and to determine the confidence limits of the method. Nearly constant FI in Red Delicious and the fluctuations of FI in the Fuji apples should be re-examined. Three sets of experiment were performed with Flandria tomatoes. Despite the complex structure of the tomatoes, the acoustic method could be used for firmness evaluation and to follow the ripening evolution with time. Close agreement was achieved between the auction expert evaluation and that of the nondestructive acoustic test, where firmness index of 4.0 and more indicated grade-A tomatoes. More work is performed to refine the sorting algorithm and to develop a general ripening scale for automatic grading of tomatoes for the fresh fruit market. Galia melons were tested in Israel, in simulated export conditions. It was concluded that the Firmalon is capable of detecting the ripening of melons nondestructively, and sorted out the defective fruits from the export shipment. The cooperation with local industry resulted in development of automatic on-line prototype of the acoustic sensor, that may be incorporated with the export quality control system for melons. More interesting is the development of the remote firmness sensing method for sealed CA cool-rooms, where most of the full-year fruit yield in stored for off-season consumption. Hundreds of ripening monitor systems have been installed in major fruit storage facilities, and being evaluated now by the consumers. If successful, the new method may cause a major change in long-term fruit storage technology. More uses of the acoustic test method have been considered, for monitoring fruit maturity and harvest time, testing fruit samples or each individual fruit when entering the storage facilities, packaging house and auction, and in the supermarket. This approach may result in a full line of equipment for nondestructive quality control of fruits and vegetables, from the orchard or the greenhouse, through the entire sorting, grading and storage process, up to the consumer table. The developed technology offers a tool to determine the maturity of the fruits nondestructively by monitoring their acoustic response to mechanical impulse on the tree. A special device was built and preliminary tested in mango fruit. More development is needed to develop a portable, hand operated sensing method for this purpose. In North Carolina: Analysis method based on an Auto-Regressive (AR) model was developed for detecting the first resonance of fruit from their response to mechanical impulse. The algorithm included a routine that detects the first resonant frequency from as many sensors as possible. Experiments on Red Delicious apples were performed and their firmness was determined. The AR method allowed the detection of the first resonance. The method could be fast enough to be utilized in a real time sorting machine. Yet, further study is needed to look for improvement of the search algorithm of the methods. An impact contact-pressure measurement system and Neural Network (NN) identification method were developed to investigate the relationships between surface pressure distributions on selected fruits and their respective internal textural qualities. A piezoelectric dot-matrix pressure transducer was developed for the purpose of acquiring time-sampled pressure profiles during impact. The acquired data was transferred into a personal computer and accurate visualization of animated data were presented. Preliminary test with 10 apples has been performed. Measurement were made by the contact-pressure transducer in two different positions. Complementary measurements were made on the same apples by using the Firmalon and Magness Taylor (MT) testers. Three-layer neural network was designed. 2/3 of the contact-pressure data were used as training input data and corresponding MT data as training target data. The remaining data were used as NN checking data. Six samples randomly chosen from the ten measured samples and their corresponding Firmalon values were used as the NN training and target data, respectively. The remaining four samples' data were input to the NN. The NN results consistent with the Firmness Tester values. So, if more training data would be obtained, the output should be more accurate. In addition, the Firmness Tester values do not consistent with MT firmness tester values. The NN method developed in this study appears to be a useful tool to emulate the MT Firmness test results without destroying the apple samples. To get more accurate estimation of MT firmness a much larger training data set is required. When the larger sensitive area of the pressure sensor being developed in this project becomes available, the entire contact 'shape' will provide additional information and the neural network results would be more accurate. It has been shown that the impact information can be utilized in the determination of internal quality factors of fruit. Until now,

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