Relevant bibliographies by topics / Paper Surfaces

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Paper Surfaces'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Paper Surfaces"

1

Brinen, Jacob S., and Robert J. Proverb. "SIMS imaging of paper surfaces." Nordic Pulp & Paper Research Journal 6, no. 4 (December 1, 1991): 177–83. http://dx.doi.org/10.3183/npprj-1991-06-04-p177-183.

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de Carvalho, A., and T. Hall. "Paper surfaces and dynamical limits." Proceedings of the National Academy of Sciences 107, no. 32 (July 26, 2010): 14030–35. http://dx.doi.org/10.1073/pnas.1001947107.

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de Carvalho, André, and Toby Hall. "Riemann surfaces out of paper." Proceedings of the London Mathematical Society 108, no. 3 (July 22, 2013): 541–74. http://dx.doi.org/10.1112/plms/pdt020.

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Clarke, B., and W. N. Charman. "Macro-interferometry of paper surfaces." Journal of Physics E: Scientific Instruments 22, no. 3 (March 1989): 162–66. http://dx.doi.org/10.1088/0022-3735/22/3/007.

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Ngo, Ying Hui, Dan Li, George P. Simon, and Gil Garnier. "Paper surfaces functionalized by nanoparticles." Advances in Colloid and Interface Science 163, no. 1 (March 2011): 23–38. http://dx.doi.org/10.1016/j.cis.2011.01.004.

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Manneberg, Go¨ran. "Fourier optic characterization of paper surfaces." Optical Engineering 36, no. 1 (January 1, 1997): 35. http://dx.doi.org/10.1117/1.601173.

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Wang, Min, Yuli Wang, Bingbing Gao, Yifeng Bian, Xiaojiang Liu, Zhenzhu He, Yi Zeng, Xin Du, and Zhongze Gu. "Fast Strategy to Functional Paper Surfaces." ACS Applied Materials & Interfaces 11, no. 15 (March 25, 2019): 14445–56. http://dx.doi.org/10.1021/acsami.9b00512.

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Ruzyllo, Jerzy, and Patrick J. Drummond. "Electrical Characterization of As-Processed Semiconductor Surfaces - Invited Paper." Solid State Phenomena 255 (September 2016): 299–303. http://dx.doi.org/10.4028/www.scientific.net/ssp.255.299.

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The paper is concerned with electrical characterization of as-processed semiconductor surfaces and near-surface regions for the purpose of process development and monitoring. The methods of electrical characterization based on Surface Photovoltage (SPV) and Photoconductance Decay (PCD) effects are discussed as being particularly conducive with the needs of as-processed semiconductor surface characterization and experimental results demonstrating merits of the proposed methodology are presented.
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Shchukarev, A. V., R. Mattsson, and L. Ödberg. "XPS imaging of surface diffusion of alkylketene dimer on paper surfaces." Colloids and Surfaces A: Physicochemical and Engineering Aspects 219, no. 1-3 (June 2003): 35–43. http://dx.doi.org/10.1016/s0927-7757(03)00009-8.

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Häkkänen, H. J., and J. E. I. Korppi-Tommola. "Laser-Induced Fluorescence Imaging of Paper Surfaces." Applied Spectroscopy 47, no. 12 (December 1993): 2122–25. http://dx.doi.org/10.1366/0003702934066307.

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Laser-induced fluorescence imaging has been used to study the microstructure of paper surfaces. Pulses from a XeCl-excimer laser, 10 ns in duration at 308 nm, were used for excitation, and fluorescence was collected at 420 nm. The excitation spot diameter was approximately 20 µm, and the sampling interval 0.15 mm. Within an area of 5*5 mm2, 1023 sampling points were recorded to generate 3D fluorescence maps of paper surfaces. Papers containing fluorescence whitening agents (FWAs) gave the highest average fluorescence signals. Coated papers with no FW As show weaker signals than the base sheet. For some thirty different paper samples, an obvious correlation between the amount of coating and the average intensity of the fluorescence signal was observed. Signal fluctuations around the average intensity values were sensitive to (1) the chemical pulp content in super calantered (SC) paper, (2) the amount of recycled fiber in newsprint, and (3) the amount of coating on the light-weight coated (LWC) paper surface. An effort was made to correlate fluorescence imaging results to predict mottling (diffusion of printing ink after printing) in various paper brands.
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Dissertations / Theses on the topic "Paper Surfaces"

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Yang, Hongta. "Fundamentals, preparation, and characterization of superhydrophobic wood fiber products." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24796.

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Thesis (M. S.)--Chemical Engineering, Georgia Institute of Technology, 2008.
Committee Chair: Yulin Deng; Committee Member: Jeffery S. Hsieh; Committee Member: Sujit Banerjee; Committee Member: Zhong Lin Wang.
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Garoff, Niklas. "The Friction between Paper Surfaces." Doctoral thesis, Stockholm, 2002. http://www.diva-portal.org/kth/theses/abstract.xsql?dbid=3415.

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Piltonen, P. (Petteri). "Prevention of fouling on paper machine surfaces." Doctoral thesis, Oulun yliopisto, 2013. http://urn.fi/urn:isbn:9789526202877.

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Abstract Fouling in papermaking causes major economic drawbacks due to downtime of process and paper quality defects. The surface fouling is a complex phenomenon in a paper making process, which is affected by several interconnected factors such as process environment changes from wet to dry with increasing temperature along with the variety of sticky materials present in paper raw materials. These impurities, such as waxes, coating binders, hot melts and pressure-sensitive adhesives have a tendency to attach to the surfaces of machinery during paper production and cause surface fouling. The focus of this thesis was on the mechanisms of sticking and surface fouling on a paper machine surfaces caused by problematic sticky organic materials. The sticking potential of six styrene–butadiene latices varying in carboxylation degree, crosslinking density and viscoelasticity and one polyacrylate pressure sensitive adhesive were studied using a cylindrical probe tack method under dry and aqueous conditions. Sticking potential was measured using low and high energy surfaces as an adherent. Also a new practical method for the on-site evaluation of nonstick properties of cylinder coating materials was developed. This method enables monitoring the condition of the coating during its life cycle and also provides the opportunity to compare the performance of different drying cylinder coating materials. The research performed clearly showed that low viscoelastic modulus of latex increases sticking tendency. The results also showed that presence of water can either increase or decrease adhesion depending on the moisture content ant the physic-chemical properties of sticky materials. A low surface energy coating strongly decreases sticking compared to a high energy surface and have a lower susceptibility to fouling in the dry environment. In aqueous conditions, the use of high-energy surfaces decreases adhesion of latices due to their strong interaction with water. Also, the results indicated that carboxylation decreases sticking potential of latex in both dry and aqueous environments
Tiivistelmä Paperikoneiden likaantuminen aiheuttaa suuria tuotannollisia menetyksiä johtuen tuotantoprosessin katkoksista ja paperin laadun ongelmista. Paperikoneen pintojen likaantuminen on monimutkainen prosessi, johon vaikuttavat monet toisistaan riippuvat tekijät ja siten likaantumisilmiötä on vaikea hallita. Paperin raaka-aineet voivat sisältää epäpuhtauksia, kuten vahoja, kuumasulate- ja tarraliimoja, jotka tarttuvat paperikoneen pintoihin aiheuttaen niiden likaantumista. Lisäksi paperin prosessiympäristö muuttuu märästä kuivaan valmistusprosessin edetessä ja lämpötilan kasvaa samanaikaisesti. Tässä väitöskirjassa on kuvattu paperikoneen pintojen likaantumisen mekanismeja ja erityisesti orgaanisten lika-aineiden tarttumista. Tutkimuksessa selvitettiin probe tack -menetelmää käyttäen kuuden erilaisen styreeni-butadieenilateksin ja polyakrylaattitarraliiman tarttuvuutta matalan ja korkean pintaenergian pinnoilla sekä kuivissa että märissä olosuhteissa. Työhön oli valittu latekseja, joiden karboksylointiaste, ristisilloitustiheys ja viskoelastiset ominaisuuden olivat erilaisia. Lisäksi väitöskirjatyössä kehitettiin paikan päällä suoritettava mittausmenetelmä paperikoneen kuivaussylinterien pinnoitteen puhtaana pysyvyyden määrittämiseksi. Tällä menetelmällä voidaan mitata pinnoitteiden kuntoa niiden elinkaaren aikana ja myös vertailla erilaisia pinnoitteita keskenään. Tutkimuksen tulokset osoittivat, että styreeni-butadieenilateksien matala kimmokerroin lisää niiden tarttumista paperikoneen pinnoille. Veden läsnäolo voi joko lisätä tai vähentää tarttumista riippuen veden määrästä ja lika-aineiden fysiokemiallisista ominaisuuksista. Myös paperikoneen pinnoitteen pintaenergia vaikuttaa tarttuvuuteen. Paperikoneen pinnoitteiden pieni pinta-energia vähentää tarttumista kuivissa olosuhteissa, kun taas korkean pintaenergian pinnoitteet vähentävät lateksien tarttuvuutta vesiolosuhteissa. Lisäksi lateksien karboksylointi vähentää niiden tarttumista sekä kuivissa että märissä olosuhteissa
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Zhao, Boxin Pelton Robert H. "The interactions of pressure sensitive adhesive with paper surfaces." *McMaster only, 2004.

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Li, Lester. "Structural considerations for superhydrophobic and superoleophobic surfaces." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/52914.

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Highly fluid repellent have application in many industries ranging from marine to biomedical due to their self-cleaning antifouling properties. The development and implementation of these superhydrophobic (water contact angle >150 degrees ) and superoleophobic (oil contact angle > 150 degrees ) surfaces were studied in this thesis. We focused our studies on paper as a substrate for these superhydrophobic and superoleophobic surfaces. Cellulose based paper is a biodegradable, inexpensive material that is ideal for disposable use applications. Applying an oxygen plasma etching technique combined with the deposition of a fluoropolymer from a pentafluoroethane precursor, superhydrophobic paper can be attained. This superhydrophobic paper is functionalized by printing wax islands onto the surface, thereby creating areas of high fluid adhesion. These wax functionalized sheets are used to sample droplets from bulk droplets, with the sampled volume being controlled by the hysteresis of the wax island. Disposable biomedical devices can be envisioned from these wax designs. While these superhydrophobic surface excel at repelling water, they continue to readily absorb water. Formation of paper that is both superhydrophobic and superoleophobic, or superamphiphobic, is accomplished through a combination of steps: mechanical fiber refining, solvent exchange processing and plasma treatment. The fiber refining creates nano-scale fibrils that are separated in the solvent processing. Subsequent plasma treatment of oxygen etching and fluoropolymer deposition creates superamphiphobic paper, exhibiting contact angles of > 150 degrees for water, ethylene glycol, motor oil and n-hexadecane. Further studies were conducted to increase the strength of these superamphiphobic sheets by using layered paper. Development of superhydrophobic paper from a hydrophilic diamond-like carbon surface coating was also demonstrated. When combined with oxygen plasma etching, diamond-like carbon coated paper sheets attain superhydrophobic properties similar to fluoropolymer coated sheets. Based on the knowledge gained from the studies on paper, superhydrophobic surfaces are created on 304 and 316 stainless steels. Samples are etched in hydrofluoric acid and then passivated in nitric acid to create the necessary surface structure. Deposition of fluoropolymer onto the etched samples yields superhydrophobic properties.
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Aulin, Christian. "Preparation, characterisation and wetting of fluorinated cellulose surfaces." Licentiate thesis, Stockholm : Royal Institute of Technology. Department of Fibre and Polymer Technology, Division of Fibre Technology, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4587.

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Hansuebsai, A. "An investigation of the optical profile properties (smoothness) of paper substrates including the effects on smoothness of solvent penetratation and with particular reference to lithographic." Thesis, University of the Arts London, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234271.

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Öhlund, Thomas. "Coated Surfaces for Inkjet-Printed Conductors." Licentiate thesis, Mittuniversitetet, Institutionen för tillämpad naturvetenskap och design, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-16449.

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In this thesis, a number of commercially available paper substrates of various types are characterized and their characteristics related to the performance of inkjet-printed conductors using silver nanoparticle ink. The evaluated performance variables are electrical conductivity as well as the minimum achievable conductor width and the edge raggedness. It is shown that quick absorption of the ink carrier is beneficial for achieving well defined conductor geometry and high conductivity. Surface roughness with topography variations of sufficiently large amplitude and frequency is detrimental to print definition and conductivity. Porosity is another important factor, where the characteristic pore size is much more important than the total pore volume. A nearly ideal porous coating has large total pore volume but small characteristic pore size, preferably smaller than individual nanoparticles in the ink. Apparent surface energy is important for non-absorbing substrates but of limited importance for coatings with a high absorption rate.Additionally, a concept for improving the geometric definition of inkjet-printed conductors on nonporous films has been demonstrated. By coating the films with polymer–based coatings to provide a means of ink solvent removal, minimum conductor width were reduced a factor 2 or more.Intimately connected to the end performance of printed conductors is a well adapted sintering methodology. A comparative evaluation of a number of selective sintering methods has been performed on paper substrates with different heat tolerance. Pulsed high-power white light was found to be a good compromise between conductivity performance, reliability and production adaptability.The purpose of the work conducted in this thesis is to increase the knowledge base in how surface characteristics of papers and flexible films affect performance of printed nanoparticle structures. This would improve selection, adaption of, or manufacturing of such substrates to suit printed high conductivity patterns such as printed antennas for packaging.
I denna avhandling har ett antal kommersiellt tillgängliga papper av olika typ karaktäriserats och deras egenskaper relaterats till prestandan på inkjet-tryckta elektriska ledare tryckta med silvernanopartikelbläck. De undersökta prestandavariablerna är elektrisk ledningsförmåga samt ledarnas minimala linjebredd och kantjämnhet. Det visas att en snabb absorption av bläckets lösningsmedel är gynnsam för både väldefinierad ledningsgeometri och elektrisk ledningsförmåga. Ytråhet med topografiska variationer med tillräckligt stor amplitud och spatiell frekvens korrelerar negativt med tryckdefinition och ledningsförmåga. Porositet är ytterligare en viktig faktor, där karaktäristisk porstorlek är avsevärt viktigare än total porvolym. Nära ideala egenskaper hos en porös bestrykning synes vara en mycket hög total porvolym men med små individuella porer, med fördel mindre än de minsta metallpartiklarna i bläcket. Ytenergi är mycket betydelsefull för icke-absorberande substrat men tappar nästan all sin betydelse för bestrykningar med snabb absorption.Ett koncept för att förbättra den geometriska definitionen på inkjet-tryckta ledare på icke-porösa flexibla filmer har visats. Genom att bestryka filmerna med vissa polymerbaserade material och därmed införa en mekanism för separering av lösningsmedel och partiklar så reducerades ledarnas minimibredd med en faktor 2 eller mer.Intimt förknippad med den slutliga elektriska prestandan på tryckta ledare är också en väl anpassad sintringsmetodik. En jämförande utvärdering av ett flertal selektiva sintringmetoder har genomförts på papper med olika värmetålighet. Pulsat vitt ljus med hög effekt bedömdes som en bra kompromiss mellan elektriska prestanda, tillförlitlighet och anpassningsbarhet för produktionsmiljö.Nyttan med arbetet som presenteras i denna avhandling är att öka kunskapsbasen för hur pappers och flexibla filmers ytegenskaper påverkar prestandan på inkjet-tryckta nanopartikelstrukturer. Detta möjliggör bättre urval, anpassning av, eller tillverkning av sådana substrat för att passa tryckta mönster med hög konduktivitet; som till exempel tryckta antenner på förpackningar.
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Fivaz, Erika. "Evaluation of joint formation on cellulosic surfaces." Thesis, KTH, Materialvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277912.

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Environmental issues are more and more present in our societies. Pollution engendered by plastic waste have drastically increased these past decades, causing several threats to the ecosystem. Therefore, the need of new biodegradable plastics to replace the actual petroleum-based ones is urgent. Cellulose could be a potential substitute since it is a biopolymer, abundant on Earth. However its properties have to be enhanced to be competitive towards actual plastics. The aim of the project is therefore to get a better understanding of cellulose-cellulose interactions. It focuses on the adhesion between cellulosic surfaces. Contact adhesion measurements have been performed on cellulose beads, with different treatments. All the beads had the same size and same concentration. Some of them were native whereas others were charged (600 µeq/g). Half of the native beads were surface modified with a starch coating or a Layer by Layer technique using cationic starch and an anionic polyelectrolyte (EXPN64 or FennoBond 85E). The project included preparation of the surface modified beads, pull-off tests, where load and position were recorded as a function of time, as well as measurements of the contact area. It was found that a higher energy was needed to separate charged and surface modified beads, especially the ones modified with EXPN 64, compared to native beads. The project have also shown that the types of beads influenced the contact area and the strength. However a trend was sometimes difficult to find. The data and results obtained in this project could be further re-used to enlarge the study field and investigate the influence of other parameters (size, concentration) on the adhesion of cellulose beads.
Miljöfrågor är mer och mer närvarande i våra samhällen. plastavfall har ökat drastiskt de senaste decennierna och orsakat flera hot mot ekosystemet. Därför är behovet av ny biologiskt nedbrytbar plast för att ersätta de petroleumbaserade brådskande. Cellulosa kan vara en potentiell ersättare eftersom det är en biopolymer. Emellertid måste dess egenskaper förbättras för att vara konkurrenskraftiga gentemot petroleumbaserad plast. Syftet med projektet är därför att bättre förstå cellulosa-cellulosa-interaktioner. Den fokuserar på vidhäftningen mellan cellulosaytor. Kontaktvidhäftningsmätningar har utförts på cellulosapärlor med olika behandlingar. Alla pärlor hade samma storlek och koncentration. Vissa av dem var naturliga medan andra laddades (600 µeq/g). Projektet inkluderade beredning av ytmodifierade pärlor, utdragningstester, där belastning och position registrerades som en funktion av tiden, samt mätningar av kontaktområdet. Det visade sig att högre energi behövdes för att separera laddade och ytmodifierade pärlor, särskilt de modifierade med EXPN 64, jämfört med tonativa pärlor. Projektet har också visat att typerna av pärlor påverkade kontaktområdet och styrkan. Men en trend var ibland svår att hitta. Uppgifterna och resultaten som erhållits i detta projekt kan vidare användas för att förstora studiefältet och undersöka påverkan av andra parametrar (storlek, koncentration) på vidhäftningen av cellulosapärlor.
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Illergård, Josefin. "Development of New Bacteria-Reducing Surfaces." Licentiate thesis, KTH, Fibre and Polymer Technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10586.

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In recent years, antibacterial surfaces have been a subject of increased interest. Especiallyinteresting are non-leaching, contact-active surfaces that physically disrupts the bacterialcell using immobilised cationic polymers. Thus the risks of bacterial resistance and discharge of hazardous biocides is minimised. The assembly of such surfaces is elaborate andusually involves organic solvents. Here, polyelectrolyte multilayers (PEM) are proposed as an effective surface modification method, with an overall goal of producing antibacterial cellulose fibres. The PEM process is based on physical adsorption of oppositely charged polymers in aqueous solutions. Multilayers were formed with the bactericidal polymer polyvinylamine (PVAm) and polyacrylic acid. PVAm compounds with hydrophobic modificationswere applied as well, as they possess increased antibacterial activity in solution.

In this work, the multilayer formation was studied on model surfaces of silicone oxide and glass in order to obtain fundamental knowledge of the polymer system. QCM-D and reflectometry, which detect total mass including bound water and polymer mass only, respectively, were used to analyse the layer formation. Salt-concentrations were varied at 1, 10 or 100 mM NaCl. A stepwise multilayer formation with exponential-like polymer adsorption but with decreasing water content for each layer was seen at all salt concentrations.A higher salt concentration resulted in an increased adsorbed mass. No significant differences in adsorption between the modified and unmodified PVAm could be detected. AFM imaging applied to multilayers having nine layers showed large surface aggregates under high salt conditions for the C6-modified PVAm. Dynamic light scattering showed that the polymer occurred as single molecules in solution; hence it was concluded that theaggregation is surface-associated.

The multilayers were then tested for bacterial growth inhibition. The relative bacterial inhibition was time-dependent, as the surface was saturated with bacteria over time. After two hours, a maximal inhibition of 99 % could be observed for the multilayers. After eight hours, a moderate inhibition of less than 40 % was detected. Using multilayers affected the results positively compared to single layers. After three layers, though, no further reductionwas seen. Viability staining of the surface-adhered bacteria revealed that the adhered bacteria had intact membranes. Therefore, the microbiological properties of the multilayers can at this point be described more as growth-inhibiting by bacterial adhesion effectsthan as biocidal. However, this work has shown the importance of combining surface characterisation and microbial testing to understand the bacteria-surface interaction.


Biointeractive fibres
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Books on the topic "Paper Surfaces"

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James, Brander, and Thorn Ian, eds. Surface application of paper chemicals. London: Blackie Academic & Professional, 1997.

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Schmitt, H. Discussion on the paper "Some aspects of propulsion for the augmenter-wing concept (NASA-CR-125540, by D.C. Whittley)". Washington D.C: National Aeronautics and Space Administration, 1985.

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Interdisciplinary Surface Science Conference (8th 1989 Liverpool, England). Surfaces: Statics, dynamics, and growth : selected papers from the Institute of Physics Eighth Interdisciplinary Surface Science Conference, Liverpool, 20-23 March 1989. Bristol, England: A. Hilger, 1989.

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Beazley, Ken. Surface coating: A literature review. Surrey: Pira International, 1992.

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Creative paper art: Techniques for transforming the surface. New York: Sterling Pub. Co., 1999.

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Topical Meeting on Microphysics of Surfaces, Beams, and Adsorbates (2nd 1987 Santa Fe, N.M.). Topical Meeting on Microphysics of Surfaces, Beams and, Adsorbates: Summaries of papers presented at the Microphysics of Surfaces, Beams, and Adsorbates Topical Meeting, February 16-18, 1987, Santa Fe, New Mexico. Washington, DC: OSA, 1987.

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Topical Meeting Microphysics of Surfaces: Nanoscale Processing (1995 Santa Fe, N.M.). Microphysics of surfaces: Nanoscale processing : summaries of the papers presented at the topical meeting Microphysics of Surfaces: Nanoscale Processing, February 9-11, 1995, Santa Fe, New Mexico. Washington, DC: Optical Society of America, 1995.

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Hämäläinen, Markku. Spray coating technique as a surface treatment for woodcontaining paper grades. [Lappeenrantaensis]: Lappeenrannan teknillinen korkeakoulu, 2002.

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Sōmiya, Shigeyuki. Sintering Key Papers. Dordrecht: Springer Netherlands, 1990.

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Jakob, Nielsen. Collected mathematical papers. Boston: Birkhäuser, 1986.

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Book chapters on the topic "Paper Surfaces"

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Rosso, Stefano, Andrea Curtarello, Federico Basana, Luca Grigolato, Roberto Meneghello, Gianmaria Concheri, and Gianpaolo Savio. "Modeling Symmetric Minimal Surfaces by Mesh Subdivision." In Lecture Notes in Mechanical Engineering, 249–54. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-70566-4_40.

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AbstractThanks to the great diffusion of additive manufacturing technologies, the interest in lattice structures is growing. Among them, minimal surfaces are characterized by zero mean curvature, allowing enhanced properties such as mechanical response and fluidynamic behavior. Recent works showed a method for geometric modeling triply periodic minimal surfaces (TPMS) based on subdivision surface. In this paper, the deviation between the subdivided TPMS and the implicit defined ones is investigated together with mechanical properties computed by numerical methods. As a result, a model of mechanical properties as a function of the TPMS thickness and relative density is proposed.
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Breedveld, Victor, and Dennis W. Hess. "Modification of Paper/Cellulose Surfaces to Control Liquid Wetting and Adhesion." In Advances in Contact Angle, Wettability and Adhesion, 365–77. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119117018.ch14.

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Skytt, Vibeke, and Tor Dokken. "Scattered Data Approximation by LR B-Spline Surfaces: A Study on Refinement Strategies for Efficient Approximation." In Geometric Challenges in Isogeometric Analysis, 217–58. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92313-6_10.

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AbstractLocally refined B-spline (LRB) surfaces provide a representation that is well suited to scattered data approximation. When a data set has local details in some areas and is largely smooth elsewhere, LR B-splines allow the spatial distribution of degrees of freedom to follow the variations of the data set. An LRB surface approximating a data set is refined in areas where the accuracy does not meet a required tolerance. In this paper we address, in a systematic study, different LRB refinement strategies and polynomial degrees for surface approximation. We study their influence on the resulting data volume and accuracy when applied to geospatial data sets with different structural behaviour. The relative performance of the refinement strategies is reasonably coherent for the different data sets and this paper concludes with some recommendations. An overall evaluation indicates that bi-quadratic LRB are preferable for the use cases tested, and that the strategies we denote as “full span" have the overall best performance.
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Cumino, Caterina, Martino Pavignano, Maria Luisa Spreafico, and Urzula Zich. "Teaching Geometry and Surfaces Evaluation Through Graphic Representation and Dynamic Paper Models." In Advances in Intelligent Systems and Computing, 1523–32. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-95588-9_135.

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Loh, Paul, Yuhan Hou, Chun Tung Tse, Jiaqi Mo, and David Leggett. "Freeform Volumetric Fabrication Using Actuated Robotic Hot Wire Cutter." In Proceedings of the 2020 DigitalFUTURES, 280–89. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4400-6_26.

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AbstractThis paper discusses the design, fabrication and operational workflow of a novel hot-wire cutter used as an end effector for a robotic arm. Typically, hot wire cutters used a linear cutting element which results in ruled surfaces geometry. While several researchers have examined the use of hot wire cutter with cooperative robotic arms to create non-ruled surface geometry, this research explores the use of an actuated hot wire cutter manoeuver by a single robotic arm to produce similar form. The paper outlines the machine making process and its workflow resulting in a 1:1 scale prototype. The paper concludes by examining how the novel tool can be applied to an urban stage design. The research set up a fabrication procedure that has the potential to be deployed as an on-site fabrication methodology.
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Rapti, Stavroula, Stamatis C. Boyatzis, Shayne Rivers, and Anastasia Pournou. "Siderophores and their Applications in Wood, Textile, and Paper Conservation." In Microorganisms in the Deterioration and Preservation of Cultural Heritage, 301–39. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69411-1_14.

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AbstractSince the 1950s, siderophores have been acknowledged as nature’s chelating powerhouse and have been given considerable attention concerning their crucial roles in microorganisms and plants for capturing non-bioavailable iron from aquatic and terrestrial environments, as well as for their applications in agriculture, health, and materials science and environmental research. In recent years, the exceptional affinity and complexing efficacy, as well as the high selectivity of these potent chelators towards iron(III), have led to investigations by researchers aiming at understanding their capacity for removing potentially harmful and aesthetically unacceptable iron stains from organic substrates in cultural heritage objects. In the context of the conservation of cultural heritage objects, potent chelators have been proposed to remove iron from surfaces by transferring it to the more soluble complexed phase. In this review, the origins and the types of bio-environments of siderophores as well as their structure and chemistry are investigated and related to the requirements of conservation. It is evident that, given the enormous potential that these chelators have, the research for their application in cultural heritage is at a preliminary level, and has to date been within the rather narrow context of cellulosic materials such as paper and wood. The results of research conducted to date are presented in this review and questions regarding the optimal use of siderophores as iron-removing agents are posed.
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Sauer, Tilman. "Modeling Parallel Transport." In Model and Mathematics: From the 19th to the 21st Century, 203–20. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-97833-4_5.

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AbstractIn 1918, the Dutch geometer Jan Arnoldus Schouten used plaster models of standard curved surfaces to illustrate a novel geometric concept of the geodesic transport of reference frames in curved spaces. This paper discusses Schouten’s use of material modeling in the context of an emerging abstract geometric concept of parallel transport.
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Belgacem, Mohamed Naceur, and Julien Bras. "Surface Treatments of Paper." In Lignocellulosic Fibers and Wood Handbook, 481–92. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781118773727.ch19.

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Weaver, H. "Surface brightening of paper." In Surface Application of Paper Chemicals, 156–74. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-009-1457-5_9.

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Guest, D. "Recycling surface treated paper products." In Surface Application of Paper Chemicals, 229–57. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-009-1457-5_13.

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Conference papers on the topic "Paper Surfaces"

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Bailey, Gavin, Deepak Sahoo, and Matt Jones. "Paper for E-Paper." In ISS '17: Interactive Surfaces and Spaces. New York, NY, USA: ACM, 2017. http://dx.doi.org/10.1145/3132272.3132298.

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Wilson, Andrew. "Session details: Pens and paper." In ITS'12: Interactive Tabletops and Surfaces. New York, NY, USA: ACM, 2012. http://dx.doi.org/10.1145/3251580.

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Higashi, Takafumi, and Hideaki Kanai. "Instruction for Paper-cutting." In ISS '16: 2016 ACM International Conference on Interactive Surfaces and Spaces. New York, NY, USA: ACM, 2016. http://dx.doi.org/10.1145/2992154.2996872.

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Klamka, Konstantin, Wolfgang Büschel, and Raimund Dachselt. "Illuminated Interactive Paper with Multiple Input Modalities for Form Filling Applications." In ISS '17: Interactive Surfaces and Spaces. New York, NY, USA: ACM, 2017. http://dx.doi.org/10.1145/3132272.3132287.

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Saito, Theodore T. "Needs for super-smooth surfaces (Invited Paper)." In International Symposium on Optical Fabrication, Testing, and Surface Evaluation, edited by Jumpei Tsujiuchi. SPIE, 1992. http://dx.doi.org/10.1117/12.132104.

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Thomas, Michael E., Jessica Ma, Patrica McGuiggan, and M. B. Airola. "Nondestructive characterization of aged paper using spectral and directional reflection measurements." In Reflection, Scattering, and Diffraction from Surfaces VI, edited by Leonard M. Hanssen. SPIE, 2018. http://dx.doi.org/10.1117/12.2323108.

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Murakami, Kyoko, Reiji Tsuruno, and Etsuo Genda. "Strokes for drawings using illuminated paper surfaces." In ACM SIGGRAPH 2004 Sketches. New York, New York, USA: ACM Press, 2004. http://dx.doi.org/10.1145/1186223.1186226.

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Falcidieno, Bianca, and Michela Spagnuolo. "Morphological decomposition of natural surfaces (Invited Paper)." In Robotics - DL tentative, edited by Martine J. Silbermann and Hemant D. Tagare. SPIE, 1992. http://dx.doi.org/10.1117/12.135137.

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Perriollat, Mathieu, and Adrien Bartoli. "A Quasi-Minimal Model for Paper-Like Surfaces." In 2007 IEEE Conference on Computer Vision and Pattern Recognition. IEEE, 2007. http://dx.doi.org/10.1109/cvpr.2007.383356.

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Higashi, Takafumi, and Hideaki Kanai. "Practice System for Controlling Cutting Pressure for Paper-cutting." In ISS '18: 2018 ACM International Conference on Interactive Surfaces and Spaces. New York, NY, USA: ACM, 2018. http://dx.doi.org/10.1145/3279778.3281457.

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Reports on the topic "Paper Surfaces"

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Orloff, D. I. Press and dryer roll surfaces and web transfer systems for ultra high paper machine speeds. Quarterly report {number_sign}1. Office of Scientific and Technical Information (OSTI), May 1999. http://dx.doi.org/10.2172/362521.

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Orloff, D. I. Press and dryer roll surfaces and Web transfer systems for ultra high paper machine speeds. Quarterly status report for the period July 1999 through September 1999. Office of Scientific and Technical Information (OSTI), November 1999. http://dx.doi.org/10.2172/763161.

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Goodman, K. Copper Dendrites and Surface Engineering for Enhanced CO2 Reduction Research Report Paper. Office of Scientific and Technical Information (OSTI), May 2021. http://dx.doi.org/10.2172/1784613.

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Flici, Farid, and Nacer-Eddine Hammouda. Mortality evolution in Algeria: What can we learn about data quality? Verlag der Österreichischen Akademie der Wissenschaften, August 2021. http://dx.doi.org/10.1553/populationyearbook2021.res1.3.

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Mortality in Algeria has declined significantly since the country declared its independence in 1962. This trend has been accompanied by improvements in data quality and changes in estimation methodology, both of which are scarcely documented, and may distort the natural evolution of mortality as reported in official statistics. In this paper, our aim is to detect these methodological and data quality changes by means of the visual inspection of mortality surfaces, which represent the evolution of mortality rates, mortality improvement rates and the male-female mortality ratio over age and time. Data quality problems are clearly visible during the 1977–1982 period. The quality of mortality data has improved after 1983, and even further since the population census of 1998, which coincided with the end of the civil war. Additional inexplicable patterns have also been detected, such as a changing mortality age pattern during the period before 1983, and a changing pattern of excess female mortality at reproductive ages, which suddenly appears in 1983 and disappears in 1992.
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Du, Xinming, Elaine S. Tan, Yesim Elhan-Kayalar, and Yasuyuki Sawada. Economic Impact of COVID-19 Containment Policies: Evidence Based on Novel Surface Heat Data from the People’s Republic of China. Asian Development Bank, October 2022. http://dx.doi.org/10.22617/wps220243-2.

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This paper uses spatially granular surface urban heat island (SUHI) data to quantify the impact of COVID-19-related containment policies on economic output in the People’s Republic of China (PRC). Governments have adopted various policies and measures to control the spread of coronavirus disease (COVID-19). Results of the study suggest containment measures in the PRC decreased SUHI in locked cities marginally yet generated positive and negative spillover effects in unlocked cities, with positive effects dominating. The paper also notes that initial experiences helped inform the management of containment measures in the country.
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Graham, Clark, and Michael Bosworth. The National Shipbuilding Research Program. 1989 Ship Production Symposium. Paper No. 24: Designing the Future U.S. Naval Surface Fleet for Effectiveness and Producibility. Fort Belvoir, VA: Defense Technical Information Center, September 1989. http://dx.doi.org/10.21236/ada453636.

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Jacobson, Jodi. Family, Gender, and Population Policy: Views from the Middle East. Population Council, 1994. http://dx.doi.org/10.31899/pgy1994.1005.

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This paper explores the relevance of international debates to the realities of the Middle East, an important but understudied region that has often been subject to stereotyping. The region’s wealth of traditions and diverse contemporary experience offer insights to those who venture beyond the surface appearance. This paper provides a broad introduction to the connections between family, gender, and population policy in the Middle East. It is based on studies by a diverse group of Middle East scholars and the discussions they generated in Cairo at an international symposium sponsored by the Population Council in February 1994. The paper was written prior to the historic UN International Conference on Population and Development in Egypt, in the hope both of increasing understanding of an important region of the world and refining our grasp of international issues.
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Mizrach, Amos, Michal Mazor, Amots Hetzroni, Joseph Grinshpun, Richard Mankin, Dennis Shuman, Nancy Epsky, and Robert Heath. Male Song as a Tool for Trapping Female Medflies. United States Department of Agriculture, December 2002. http://dx.doi.org/10.32747/2002.7586535.bard.

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This interdisciplinaray work combines expertise in engineering and entomology in Israel and the US, to develop an acoustic trap for mate-seeking female medflies. Medflies are among the world's most economically harmful pests, and monitoring and control efforts cost about $800 million each year in Israel and the US. Efficient traps are vitally important tools for medfly quarantine and pest management activities; they are needed for early detection, for predicting dispersal patterns and for estimating medfly abundance within infested regions. Early detection facilitates rapid response to invasions, in order to contain them. Prediction of dispersal patterns facilitates preemptive action, and estimates of the pests' abundance lead to quantification of medfly infestations and control efforts. Although olfactory attractants and traps exist for capturing male and mated female medflies, there are still no satisfactorily efficient means to attract and trap virgin and remating females (a significant and dangerous segment of the population). We proposed to explore the largely ignored mechanism of female attraction to male song that the flies use in courtship. The potential of such an approach is indicated by studies under this project. Our research involved the identification, isolation, and augmentation of the most attractive components of male medfly songs and the use of these components in the design and testing of traps incorporating acoustic lures. The project combined expertise in acoustic engineering and instrumentation, fruit fly behavior, and integrated pest management. The BARD support was provided for 1 year to enable proof-of-concept studies, aimed to determine: 1) whether mate-seeking female medflies are attracted to male songs; and 2) over what distance such attraction works. Male medfly calling song was recorded during courtship. Multiple acoustic components of male song were examined and tested for synergism with substrate vibrations produced by various surfaces, plates and loudspeakers, with natural and artificial sound playbacks. A speaker-funnel system was developed that focused the playback signal to reproduce as closely as possible the near-field spatial characteristics of the sounds produced by individual males. In initial studies, the system was tasted by observing the behavior of females while the speaker system played songs at various intensities. Through morning and early afternoon periods of peak sexual activity, virgin female medflies landed on a sheet of filter paper at the funnel outlet and stayed longer during broadcasting than during the silent part of the cycle. In later studies, females were captured on sticky paper at the funnel outlet. The mean capture rates were 67 and 44%, respectively, during sound emission and silent control periods. The findings confirmed that female trapping was improved if a male calling song was played. The second stage of the research focused on estimating the trapping range. Initial results indicated that the range possibly extended to 70 cm, but additional, verification tests remain to be conducted. Further studies are planned also to consider effects of combining acoustic and pheromonal cues.
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Bond, W., Maria Seale, and Jeffrey Hensley. A dynamic hyperbolic surface model for responsive data mining. Engineer Research and Development Center (U.S.), April 2022. http://dx.doi.org/10.21079/11681/43886.

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Data management systems impose structure on data via a static representation schema or data structure. Information from the data is extracted by executing queries based on predefined operators. This paradigm restricts the searchability of the data to concepts and relationships that are known or assumed to exist among the objects. While this is an effective and efficient means of retrieving simple information, we propose that such a structure severely limits the ability to derive breakthrough knowledge that exists in data under the guise of “unknown unknowns.” A dynamic system will alleviate this dependence, allowing theoretically infinite projections of the data to reveal discoverable relationships that are hidden by traditional use case-driven, static query systems. In this paper, we propose a framework for a data-responsive query algebra based on a dynamic hyperbolic surface model. Such a model could provide more intuitive access to analytics and insights from massive, aggregated datasets than existing methods. This model will significantly alter the means of addressing the underlying data by representing it as an arrangement on a dynamic, hyperbolic plane. Consequently, querying the data can be viewed as a process similar to quantum annealing, in terms of characterizing data representation as an energy minimization problem with numerous minima.
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Karlstrom, Karl, Laura Crossey, Allyson Matthis, and Carl Bowman. Telling time at Grand Canyon National Park: 2020 update. National Park Service, April 2021. http://dx.doi.org/10.36967/nrr-2285173.

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Grand Canyon National Park is all about time and timescales. Time is the currency of our daily life, of history, and of biological evolution. Grand Canyon’s beauty has inspired explorers, artists, and poets. Behind it all, Grand Canyon’s geology and sense of timelessness are among its most prominent and important resources. Grand Canyon has an exceptionally complete and well-exposed rock record of Earth’s history. It is an ideal place to gain a sense of geologic (or deep) time. A visit to the South or North rims, a hike into the canyon of any length, or a trip through the 277-mile (446-km) length of Grand Canyon are awe-inspiring experiences for many reasons, and they often motivate us to look deeper to understand how our human timescales of hundreds and thousands of years overlap with Earth’s many timescales reaching back millions and billions of years. This report summarizes how geologists tell time at Grand Canyon, and the resultant “best” numeric ages for the canyon’s strata based on recent scientific research. By best, we mean the most accurate and precise ages available, given the dating techniques used, geologic constraints, the availability of datable material, and the fossil record of Grand Canyon rock units. This paper updates a previously-published compilation of best numeric ages (Mathis and Bowman 2005a; 2005b; 2007) to incorporate recent revisions in the canyon’s stratigraphic nomenclature and additional numeric age determinations published in the scientific literature. From bottom to top, Grand Canyon’s rocks can be ordered into three “sets” (or primary packages), each with an overarching story. The Vishnu Basement Rocks were once tens of miles deep as North America’s crust formed via collisions of volcanic island chains with the pre-existing continent between 1,840 and 1,375 million years ago. The Grand Canyon Supergroup contains evidence for early single-celled life and represents basins that record the assembly and breakup of an early supercontinent between 729 and 1,255 million years ago. The Layered Paleozoic Rocks encode stories, layer by layer, of dramatic geologic changes and the evolution of animal life during the Paleozoic Era (period of ancient life) between 270 and 530 million years ago. In addition to characterizing the ages and geology of the three sets of rocks, we provide numeric ages for all the groups and formations within each set. Nine tables list the best ages along with information on each unit’s tectonic or depositional environment, and specific information explaining why revisions were made to previously published numeric ages. Photographs, line drawings, and diagrams of the different rock formations are included, as well as an extensive glossary of geologic terms to help define important scientific concepts. The three sets of rocks are separated by rock contacts called unconformities formed during long periods of erosion. This report unravels the Great Unconformity, named by John Wesley Powell 150 years ago, and shows that it is made up of several distinct erosion surfaces. The Great Nonconformity is between the Vishnu Basement Rocks and the Grand Canyon Supergroup. The Great Angular Unconformity is between the Grand Canyon Supergroup and the Layered Paleozoic Rocks. Powell’s term, the Great Unconformity, is used for contacts where the Vishnu Basement Rocks are directly overlain by the Layered Paleozoic Rocks. The time missing at these and other unconformities within the sets is also summarized in this paper—a topic that can be as interesting as the time recorded. Our goal is to provide a single up-to-date reference that summarizes the main facets of when the rocks exposed in the canyon’s walls were formed and their geologic history. This authoritative and readable summary of the age of Grand Canyon rocks will hopefully be helpful to National Park Service staff including resource managers and park interpreters at many levels of geologic understandings...
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