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Relevant bibliographies by topics / Physics on postage stamps

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Academic literature on the topic 'Physics on postage stamps'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Physics on postage stamps"

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Feder, Toni. "US Postage Stamps Feature Scientists." Physics Today 58, no. 5 (2005): 30. http://dx.doi.org/10.1063/1.1995738.

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Kapila, Rishabh, and B. Subash. "Philately and Radiology." Dental Journal of Advance Studies 02, no. 01 (2014): 001–3. http://dx.doi.org/10.1055/s-0038-1671977.

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AbstractInformation can be transmitted to the public in various ways. Postage stamps act as one of them. The information that they carry may be direct in the form of color and subject of the stamp or indirect through repeated sublime exposures. Postage stamps depicting various aspects of radiologic science ranging from theoretical radiation physics to clinical radiologic imaging and treatment are illustrated in this article.

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Raposo, Pedro M. P. "A Book with Postage Stamps." Journal for the History of Astronomy 51, no. 3 (2020): 378–79. http://dx.doi.org/10.1177/0021828620926758.

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Bell, Kenneth J. "An Editorial Potpourri Involving Postage Stamps." Heat Transfer Engineering 13, no. 3 (1992): 5. http://dx.doi.org/10.1080/01457639208939778.

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Pop, Alexandru-Leonard, and Mirela Coman. "IMPLICATIONS OF PHILATELY IN PROMOTING THE PROTECTED NATURAL AREAS (I): CEAHLĂU NATIONAL PARK." Scientific Bulletin Series D : Mining, Mineral Processing, Non-Ferrous Metallurgy, Geology and Environmental Engineering 32, no. 1 (2018): 87–96. http://dx.doi.org/10.37193/sbsd.2018.1.12.

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We define and accept natural heritage as being the ensemble of components and physical-geographic structures, flora, fauna and biocenotic natural resources, of whose importance has an ecological, economical, scientific, biogenetic, and health values, a recreative and cultural-historicvision iss having relevant significance under the aspect of conserving the biodiversity of ecosystems' functional integrity, genetical heritage conservation, vegetation and animals, and for the satisfaction of the everyday life , as well as wealth, culture and civilisation, of bothpresent and future generations. Romania is a blessed place with many areas of unique beauty - as part of the natural heritage - with places where the spectacle of nature delights your eyes and take your breath with every step. Constantly promoting philately themes that use natural wealth and the beauty of our country as subjects, the administrative entity (with various names over time) responsible for issuing postage stamps performs a series of postage stamps in whose images are found rarities of flora and fauna, a miracle of nature. In this paper, we bring to discussion, among other things, the most significant philatelic peculiarities in the Ceahlău National Park.

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Pop, Alexandru-Leonard, Yaroslav Adamenko, and Bogdan Cioruţa. "IMPLICATIONS OF PHILATELY IN PROMOTING THE PROTECTED NATURAL AREAS (II): "PE.EA CREEK" NATURAL RESERVATION." Scientific Bulletin Series D : Mining, Mineral Processing, Non-Ferrous Metallurgy, Geology and Environmental Engineering 32, no. 2 (2018): 43–52. http://dx.doi.org/10.37193/sbsd.2018.2.05.

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We define and accept natural heritage as being the ensemble of components and physical-geographical structures, floristic, faunistic and biocenotic of natural resources, of which importance and ecological value, economical, scientific, biogenetic, health, views, recreative and cultural-historic have relevant significance under the aspect of conserving biodiversity, of ecosystems functional integrity, genetical heritage conservation, vegetal and animal, and for life need satisfaction, wealth, culture and civilisation of present and future generations. Romania is a blessed place with many areas of unique beauty - as part of the natural heritage - with places where the spectacle of nature delights your eyes and breathtaking your every step. Constantly promoting philately themes that use natural wealth and beauty of our country as subjects, the administrative entity (with various names over time) responsible for issuing postage stamps performs a series of postage stamps in whose images are found rarities of flora and fauna, a miracle of nature. In this paper, we bring to discussion, among other things, the most significant philatelic peculiarities in the "Petea Creek " Natural Reservation.

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Jelovica Badovinac, I., N. Orlić, C. Lofrumento, J. Dobrinić, and M. Orlić. "Spectral analysis of postage stamps and banknotes from the region of Rijeka in Croatia." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 619, no. 1-3 (2010): 487–90. http://dx.doi.org/10.1016/j.nima.2009.10.174.

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Fields, Jerry L. "Honor Compton with a Postage Stamp." Physics Today 44, no. 10 (1991): 150–54. http://dx.doi.org/10.1063/1.2810310.

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ROEHNER, B., and D. SORNETTE. "ANALYSIS OF THE PHENOMENON OF SPECULATIVE TRADING IN ONE OF ITS BASIC MANIFESTATIONS: POSTAGE STAMP BUBBLES." International Journal of Modern Physics C 10, no. 06 (1999): 1099–116. http://dx.doi.org/10.1142/s0129183199000905.

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We document and analyze the empirical facts concerning one of the clearest evidence of speculation in financial trading as observed in the postage collection stamp market. We unravel some of the mechanisms of speculative behavior which emphasize the role of fancy and collective behavior. In our conclusion, we propose a classification of speculative markets based on two parameters, namely the amplitude of the price peak and a second parameter that measures its "sharpness". This study is offered to anchor modeling efforts to realistic market constraints and observations.

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Gilder, John. "On Buying Postage Stamps." Mathematical Gazette 71, no. 456 (1987): 110. http://dx.doi.org/10.2307/3616495.

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Dissertations / Theses on the topic "Physics on postage stamps"

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Frewer, Douglas Charles Terrington. "The social agency of postage stamps : Japanese postage stamps in a global context." Thesis, Oxford Brookes University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.404744.

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Ng, Kuok Man. "The collective memories of Macau : from transportation and construction stamps (1949-1999)." Thesis, University of Macau, 2012. http://umaclib3.umac.mo/record=b2585604.

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Huang, Yu-Chin. "National identity and ideology in the design of postage stamps of China and Taiwan 1949-1979." Thesis, SOAS, University of London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.498654.

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Postage stamps are exclusively made by a country that is recognized by other members of the international community. Governments have always utilized these tiny images as national and international propaganda. By 1949, the Chinese Communist Party effectively controlled the Chinese Mainland and established the People's Republic of China (PRC), while the Nationalist Party fled to Taiwan to resume its Republic of China (ROC). The PRC and the ROC simultaneously asserted their sole legitimate succession to the Chinese regime, and both countries' postal authorities utilized postage stamps to build their own Chinese national identity and engage in a long-term propaganda war. In this thesis, I will firstly analyze both the production and consumption of postage stamps in Chapter Two and Chapter Three. The production of postage stamps is always conducted by the postal authorities, responsible for planning and designing postage stamps. However, it is also inevitably affected by stamp collectors' taste and need as well as by domestic and international stamp markets. Even though ordinary postage stamp users, stamp collectors and stamp merchants are the main agents in the consumption of postage stamps, they are also the marketing targets of the postal authorities. Therefore, my approach to the study of postage stamps coordinates top-down and bottom-up strategies in order to obtain a full picture of this aspect of discourse on Chinese national identity in both countries. Following the study of the historical background both countries' postal services, Chapter Four explores how these two countries drew national leaders and national territory and designed Chinese visual characteristics in postage stamps, discussing the construction of each regime's political, geographical and cultural identity. By comparing five sets of stamp themes, including people, anniversaries, international relations, sport and the overseas Chinese, Chapter Five analyzes political, historical and ethnic identity in postage stamp designs of the 'two Chinas'.

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Yang, Hailing. "Adhesion Studies of Polymers: (I) Autohesion of Ethylene/1-Octene Copolymers; (II) Method Development and Adhesive Characterization of Pressure Sensitive Adhesive in Paper Laminates for Postage Stamps." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/27325.

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Autohesion is defined as the resistance to separation of two bonded identical films that have been joined together for a period of time under a given temperature and pressure. Studies on the autohesion phenomenon can provide fundamental insights into the physical processes of adhesive bond and failure, as well as the practical engineering issues such as crack healing, elastomer tack, polymer fusion, self-healing, and polymer welding. In the first part of this dissertation work, four ethylene/1-octene (EO) copolymers were used in the present study consisting of molecules with linear polyethylene backbone to which hexyl groups are attached at random intervals. These copolymers have similar number-average molecular weight (Mn) and polydispersity, but different 1-octene content. These hexyl groups act as the short branches and hinder the crystallization, reduce density to some extent in the solid state, lower the melting temperature, and decrease the stiffness of the bulk materials. A full understanding of the autohesion behavior of the ethylene/1-octene copolymers involves investigations at three different length scales: 1) the molecular scale which controls the interfacial structure; 2) the mesoscopic or microscopic scale which can provide information on the formation of interfaces and on how the energy is dissipated during a fracture process; and 3) the macroscopic scale at which the mechanical properties such as fracture energy can be obtained for a particular test geometry. In the present study, the effects of the branch content on the formation and fracture of the interface of these ethylene/1-octene assemblies were evaluated at the bonding temperatures (Tb) and bonding times (tb). The correlation among these three length scales was also investigated and modeled. The adhesion strength of these symmetric interfaces of EO copolymers was investigated by T-peel fracture tests. The fracture of the interface is an irreversible entropy creating process which involved a substantial amount of energy dissipation. The results of such mechanical tests with respect to the bonding temperature (Tb), bonding time (tb) and peel rate indicated this energy dissipation is the result of a complicated interplay between the ability of the interface to transfer stress and its plastic and viscoelastic deformation properties. When Tb is much higher than the characteristic temperature (Tc), the interfaces were completely healed and cohesive failure was observed in T-peel tests. In this case, the fracture strength decreased with increasing branch content. In contrast, when Tb is very close to Tc, the fracture strength showed an increase with the branch content with either interfacial failure or cohesive failure being observed depending on the branch content and Tb. At higher peel rates, it is observed that higher peel energies are required to fracture the surfaces. Transmission electron microscopy (TEM) showed that the interfacial/interphase structure changed from amorphous to crystalline with an increase in the Tb. The results from the bonding time effect studies showed that the peel energy is proportional to tb1/2 regardless of Tb. But the branch content and the Tb play an important role on the seal rate. Thus, higher seal rate was found for higher Tb and higher branch content. These results also suggest that the autohesion of ethylene/1-octene copolymers are strongly associated with the interactions of melted chains. The chain compositions of these Zeigler-Natta EO copolymers are highly heterogeneous with the branches concentrated in the lower molecular weight portion. Long linear chain segments could form large, well-ordered crystals that provide strong anchors for the tie molecules and therefore determine the density of inter-crystalline links. Short chains with lots of branches could behave as protrusions along the chain to obstruct chain disentanglement and limit a chain from sliding through a crystal. Due to these reasons, the short chains with branches would contribute much less than the long linear chains to the full peel strength after complete sealing. However, higher peel strengths could be obtained only at the higher temperatures or longer bonding times at which the long linear chains begin to melt and diffuse across the interface. On the other hand, the higher branch content samples have the lower crystallinity and could obtain the higher chain mobility at the lower bonding temperatures and with shorter bonding times. Therefore, higher seal strength was observed for the higher branch content samples at lower Tb. Following T-peel fracture tests of ethylene/1-octene copolymer assemblies which showed interfacial failures, the fractured surfaces were investigated by using Atomic Force Microscopy (AFM) and characterized by fractal analysis together with the original films. The AFM images showed strong dependence on the peel rate and branch content. Quantitatively, the fractal analyses demonstrated fractal characteristics at the different finite scales. Two regimes showing fractal features were identified for each surface. In regime I (low magnifications) the fracture test did not change the fractal dimensions much. But there were significant changes in regime II before welding and after T-peel fracture tests. The length scale that separated these two regimes is very close to the size of lamellar structures. The characteristic sizes at which the fractal characteristics emerge were shown to appear at larger scales for surfaces fractured at higher peel rates. This suggests that the appearance of fractal behavior at larger scales requires higher fracture energies. The characteristic sizes and fractal dimensions were shown to depend on the molecular structure. Because the fractal analysis suggests at least some crystalline lamellae on the surfaces still existed during T-peel fracture tests, a â Stitch-weldingâ has been therefore proposed as the autohesion mechanism in which only chains in the amorphous portions could inter-diffuse. In the second part of this dissertation work, a multi-layer lap-shear geometry has been designed and proven as a reliable testing method in evaluation of the dynamical mechanical properties of polyacrylic pressure sensitive adhesive (PSA) in paper lamination for postage stamp applications. In-situ testing of four different PSA stamp laminates constructed by laminating water-based polyacrylic PSAs to the stamp face papers were carried out using a dynamic mechanical analyzer (DMA) in the temperature range from -50 to 60 oC at frequencies 0.1, 1, 10, and 100 Hz. This geometry requires the tension mode on the DMA, but the results which were recorded as tensile properties were converted to shearing properties of the PSA layers in the laminate. The effect of the thickness (layers of laminates) on the dynamical mechanical properties has been studied and the results suggested that a multi-layer geometry with 5-10 layers could be an appropriate structure to produce enhanced responses. Therefore, the geometry with 8-layer laminates was used for frequency sweep/isothermal temperature and frequency sweep/temperature step tests. The results showed three relaxation responses that is, glassy, transition, and flow regions with respect to the frequencies and temperatures. These results also implied the viscoelastic characteristics of these PSA products. The tensile properties of the face papers were also tested using the same parameters as those of the multi-layer geometry. Significant differences were found between the shearing behaviors of the multi-layer geometry and the tensile behaviors of the elastic face paper. This suggests that the tensile deformation of the face paper in the multi-layer geometry could be ignored and the elastic paper did not contribute to the shearing properties of the PSA layers. Time-temperature superposition curves have been produced with reference temperature set at 23 oC, which can be used to predict the long term and short term performances of these samples at this temperature. This method can be utilized as a standard testing method on the PSA adhesives in the laminate form. In addition to the dynamic mechanical properties, it can also be developed to be a general standard method on testing the rheological properties of adhesives, polymer melts and other viscous materials.<br>Ph. D.

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Poslusny, Matthew. "Analysis of PAH and PCB Emissions from the Combustion of dRDF and the Nondestructive Analysis of Stamp Adhesives." Thesis, University of North Texas, 1989. https://digital.library.unt.edu/ark:/67531/metadc331998/.

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This work includes two unrelated areas of research. The first portion of this work involved combusting densified refuse derived fuel (dRDF) with coal and studying the effect that Ca(0H)2 binder had on reducing polycyclic aromatic hydrocarbon (PAH) and polychlorinated biphenyl (PCB) emissions. The second area of work was directed at developing nondestructive infrared techniques in order to aid in the analysis of postage stamp adhesives. With Americans generating 150-200 million tons a year of Municipal Solid Waste (MSW) and disposing of nearly ninety percent of it in landfills, it is easy to understand why American landfills are approaching capacity. One alternative to landfilling is to process the MSW into RDF. There are technical and environmental problems associated with RDF. This work provides some answers concerning the amount of PAH and PCB emissions generated via the combustion of RDF with coal. It was found that the Ca(OH)2 binder greatly reduced both the PAH and the PCB emissions. In fact, PAH emissions at the ten-percent level were reduced more by using the binder than by the pollution control equipment. If the Ca(0H)2 binder can reduce not only PAH and PCB emissions, but also other noxious emissions, such as acid gases or dioxin, RDF technology could soon be the answer to the current landfill problems. The second portion of this work focused on developing a method to analyze stamp adhesives nondestructively. Using this method, it was fairly easy to differentiate among the three different types of adhesives that have been used by the United States Postal Service: gum arabic, dextrin, and polyvinyl alcohol. Differences caused by changes in chemicals added to the adhesives were also detected. Also, forgeries were detected with as much success, if not more, than by conventional methods. This work also led to the construction of equipment that allows large samples to be analyzed by reflectance infrared methods.

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連啟明. "Watermarking and Data Hiding in personalized postage stamps." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/41546115461313813754.

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碩士<br>國立臺灣師範大學<br>圖文傳播學系<br>93<br>Personalized stamp is an application of digital printing. One part of the stamp with face-value is by lithography printing, and the other part is by digital printing. This is a greater opportunity for users and collectors to design their own postage stamp. Since the personalized stamp is printed at small amount and with many varieties, it can be used at commemorative and public activities. In this research, two encryption methods are applied to personalized stamp by modified digital halftoning techniques. First, a hidden figurative pattern is encrypted in cyan channel by halftone dot displacement, and the hidden information can be retrieved by an optical decoder. Secondly, dot deformation in magenta channel is used to encode data, and the data can be recognized by digital image processing. In this research, we combine digital watermarking with anti-counterfeiting techniques with the consideration of printing condition. It integrates digital watermarking and data hiding techniques in printing security document. By the formation of halftone dots, encrypted data is added in personalized stamp. It can not only to improve counterfeiting ability but also to enhance the value added features. In the future, the watermarked personalized stamps and high quality meter can be combined together and we can verify and track the watermarked postage stamp by machine readable techniques.

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Lee, Feng-Ran, and 李鳳然. "The historical image of Taiwan Sports Postage Stamps (1960-2012)." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/03018691236212415712.

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碩士<br>國立臺灣師範大學<br>體育學系<br>102<br>Stamps is symbolic token issued by a nation, the image largely presenting history culture,ethnoicity features, which serves as a miniature kaleidoscope of a nation.. Thus, the stamps has been nicknamed as “the name card of the country” and “mini encyclopedia”. In order to understand the development of Taiwan sports postage stamps, this paper focuses on the cause, goal of issuance, and implied socio-political significance of Taiwan sports postage stamps. The results of this study can be concluded as follows. (a) Taiwan issued the first set of the sports postage stamps since 1960. From 1960 to 2012, Taiwan had issued 133 stamps in total, including a variety of sport themes: Olympic games, baseball, sportive games, local sports, sports for all and recreational sports, as the research categorized. (b) To separate the theme of sports stamps from socio-political perspective, it can be separated into commemorative and special stamps, whereas the former genre serves the goal of commemoration of important sports events and promotes R.O.C’s government political objectives, publicizing the government’s value, sports development and sports achievements (c) Protecting the IOC membership, striving to maintain participation in international games, R.O.C’s government attemps to promote sports policy,local sports and recreational sports as we can discovered from stamp image design.

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Pinto, Catarina Monteiro. "A Forensic (Chemical) Analysis of Portuguese Postage Stamps (1857-1909)." Master's thesis, 2017. http://hdl.handle.net/10316/83039.

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Dissertação de Mestrado em Química Forense apresentada à Faculdade de Ciências e Tecnologia<br>A análise de selos, em particular de amostras pioneiras, tem sido objeto de alguns estudos, no entanto a natureza dos pigmentos ou corantes usados para imprimir os primeiros selos postais portugueses permanece desconhecida até aos dias de hoje. Além de não existirem estudos sobre os materiais utilizados para a sua produção, verifica-se também uma total ausência de referência aos corantes utilizados para colorir estes exemplares. Uma menção ao facto de que a 23 de abril de 1853, a Casa da Moeda Portuguesa recebeu uma caixa com tintas sugere a existência de algumas semelhanças entre esses e os selos postais britânicos. A partir de uma análise anterior, de alguns selos postais do Reino Unido sabe-se que o ácido carmínico, a cochonilha, (para os vermelhos) e a icónica mauveína (para lilás / roxo) foram utilizados no período de 1847 a 1901. Neste trabalho, foi realizado um estudo das tintas usadas para as cores vermelha, rosa, roxa e laranja num número selecionado de selos postais portugueses do período 1857-1909. Este estudo foi baseado em análises envolvendo uma variedade de técnicas (fluorescência de raios-X (XRF), espectroscopia ultra vioeta-visivel (UV-VIS), cromatografia liquida de alta eficiência - diode array detection - espectrometria de massa (HPLC-DAD-MS), fluorescência no estado estacionário e resolvida no tempo). Verificou-se que as tintas incluíram, entre outros, pigmentos inorgânicos, tais como o cinábrio (HgS), óxido de chumbo (Pb3O4), cromato de chumbo (PbCrO4), sulfeto de chumbo (PbS) e compostos orgânicos, entre os quais o ácido carmínico e a eosina Y. Este trabalho demonstrou ser possível a utilização de técnicas não-destrutivas para a identificação de algumas “moléculas da cor” envolvendo o XRF (para cinábrio, óxido de chumbo, cromato de chumbo, sulfeto de chumbo), UV-Vis (para ácido carmínico e eosina Y) e espectros de fluorescência, juntamente com rendimentos quânticos e tempos de vida (para eosina Y).<br>The analysis of postage stamps, in particular of pioneer samples, has been an object of some studies, however the nature of the pigments or dyes used to print the first Portuguese postage stamps remain unknown until today. Furthermore, the lack of studies on the materials used for their production, there is also a complete absence of reference to the dyes used to colour these specimens. A mention to the fact that on April 23, 1853, the Portuguese Coin House received a box with paints suggests some similarities between these and the British postage stamps.From a previous analysis some postage stamps of the United Kingdom it is known that Carminic Acid, cochineal, (for reds) and the iconic mauveine (for lilacs / purple) were used in them in the period from 1847 to 1901. In this work, a study has been made of the inks used for red, rose, purple and orange colours in a selected number of Portuguese postage stamps from the period 1857-1909. This is based on the analysis involving a variety of techniques (X-Ray Fluorescence (XRF), ultraviolet-visible (UV-VIS) spectroscopy, high performance liquid chromatography - diode array detection - mass spectrometry (HPLC-DAD-MS), steady and time resolved fluorescence). It was found that the inks included, among others, the inorganic pigments cinnabar (HgS), lead oxide (Pb3O4), lead chromate (PbCrO4), lead sulfide (PbS), and the organic compounds Carminic Acid and Eosin Y. This work demonstrated non-destructive analysis methods for identification of some molecules of colour involving the XRF (for cinnabar, lead oxide, lead chromate, lead sulfide), the UV-Vis (for Carminic Acid and Eosin Y) and fluorescence spectra, together with quantum yields and lifetimes (for Eosin Y).

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Retief, Mari Elize. "A semiotic contextualisation of South African postage stamps and letters received between 1996 and 1999." Diss., 2017. http://hdl.handle.net/10500/23134.

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The purpose of this research is to use semiotic and narrative theory to unpack the layered meanings related to postage stamps and handwritten letters and explore their similarities. The theories of Peirce on icon, index and symbol, provide a systematic framework from which to explore the parallel narratives in a personal collection of postage stamps and letters received between 1996 and 1999. Postage stamps and letters are sent as a unit, allowing their public and private narratives to arrive in parallel. Both the practical and theoretical components of this research explore these narratives, treating letters and postage stamps as both personal and impersonal objects of communication. They are archival objects of national and personal history and of an era that is slowly fading. This research does not reinforce the different modes of communication offered by postage stamps and letters, but rather unpacks and compares, from a personal perspective, their many layers of meaning.<br>Art History, Visual Arts and Musicology<br>M.A. (Visual Arts)

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Lee, Ying-chia, and 李盈佳. "Postage Stamps in Post-war Taiwan and the Formation of the KMT Party-state Identity, 1945-1992." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/868et3.

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碩士<br>國立臺灣大學<br>歷史學研究所<br>105<br>The thesis focuses on postage stamps in post-war Taiwan and the formation of the party-state identity. Postages stamps in post-war Taiwan can be read as officially sanctioned texts that reflect the intention and the ideology of the government of the Republic of China (ROC), which was controlled by the Kuomintang of China (KMT). The first purpose of the thesis was to find out that how postage stamps were issued by the government of the ROC, also known as the government of the KMT. Another aim of the thesis was to investigate themes that reflect the formation of the party-state identity. Finally, roles of the stamps as tools to affect the identity of people in post-war Taiwan were examined in the thesis. In the thesis, it was discovered that postage stamps in post-war Taiwan had played a part in the formation of the party-state identity although a postage stamp was not the only tool to change people’s identity.

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Books on the topic "Physics on postage stamps"

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United States. Superintendent of Documents. United States postage stamps. U.S. G.P.O., Supt. of Docs., 1988.

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Artists' Books Collection (Library of Congress), ed. Postage due: Forever stamps. Thomas, 2009.

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Malz, Leo. Space stamps. American Topical Association, 1985.

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A, Mackay James. British stamps. Longman, 1985.

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Schoolley-West, R. F. Stamps. British Library, 1987.

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Israel postage stamps, 1948-1988. Israel Postal Authority/Philatelic Service, 1989.

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Postage stamps of Sri Lanka. Philatelic Bureau, Department of Posts, Sri Lanka, n.d.

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Reynolds, Joe. Irish stamps. 2nd ed. Real Ireland Design, 1990.

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Morris, Melvin. George Washington on stamps. American Topical Association, 1997.

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Ivan, Chew, Ong Yew Ghee, and Singapore Philatelic Museum, eds. Singapore stamps: Anniversaries & milestones. s.n.], 2010.

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Book chapters on the topic "Physics on postage stamps"

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Blodi, Frederick C. "Some famous persons with visual problems as shown on postage stamps." In History of Ophthalmology. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-2564-2_3.

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Wagner, Anne, and Malik Bozzo-Rey. "French Commemorative Postage Stamps as a Means of Legal Culture and Memory." In Law, Culture and Visual Studies. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-90-481-9322-6_15.

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Wong, May. "Postage Stamps as Windows on Social Changes and Identity in Postcolonial Hong Kong." In Multimodal Communication. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-15428-8_3.

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"Butterflies on Cayman Postage Stamps." In Butterflies of the Cayman Islands. BRILL, 2008. http://dx.doi.org/10.1163/9789004260870_014.

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Sharma, Manu. "Postage stamps, war memory, and commemoration." In War and Semiotics. Routledge, 2020. http://dx.doi.org/10.4324/9781003049838-8.

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"Nigeria Guinea Worm Commemorative Postage Stamps." In The Eradication of Dracunculiasis (Guinea Worm Disease) in Nigeria. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-816764-9.15002-3.

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"THE POSTAGE STAMPS OF PHILO TATE." In Spectrum. American Mathematical Society, 2020. http://dx.doi.org/10.1090/spec/097/11.

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"“Little Postage Stamps of Native Soil”:." In The Asian American Avant-Garde. Temple University Press, 2015. http://dx.doi.org/10.2307/j.ctvrdf3s6.6.

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"An Overview of Latin American Postage Stamps." In Miniature Messages. Duke University Press, 2008. http://dx.doi.org/10.1215/9780822389279-003.

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"Postscript: the Challenger Expedition on postage stamps." In Understanding the Oceans. CRC Press, 2000. http://dx.doi.org/10.1201/9781482287004-34.

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Conference papers on the topic "Physics on postage stamps"

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Korepanova, Darya, Stanislav Kruglik, Yash Madhwal, et al. "Blockchain-Based Solution to Prevent Postage Stamps Fraud." In 2019 IEEE International Conference on Blockchain and Cryptocurrency (ICBC). IEEE, 2019. http://dx.doi.org/10.1109/bloc.2019.8751495.

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Bjelkhagen, Hans I. "Holography and philately: postage stamps with embossed holograms." In Holography 2000, edited by Tung H. Jeong and Werner K. Sobotka. SPIE, 2000. http://dx.doi.org/10.1117/12.402461.

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Andreou, Sonia, Stephanie Stylianou, and Evripides Zantides. "GENDERING THE NATION: FEMALE REPRESENTATIONS ON CYPRUS POSTAGE STAMPS." In New Semiotics. Between Tradition and Innovation. IASS Publications, 2015. http://dx.doi.org/10.24308/iass-2014-043.

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Grimsley, Max, James E. Hess, Mark Poulsen, Ken Rankin, and David Curtis. "Quality controls and security features for U.S. currency and postage stamps." In Electronic Imaging, edited by Rudolf L. van Renesse and Willem A. Vliegenthart. SPIE, 2000. http://dx.doi.org/10.1117/12.382210.

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Zhang, Lichen, Mohsen Mutasem Diraneyya, JuHyeong Ryu, Carl T. Haas, and Eihab Abdel-Rahman. "Assessment of Jerk As a Method of Physical Fatigue Detection." In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-86289.

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Workers’ fatigue is a significant problem in physically demanding occupations. Physical fatigue is known to result in the inability to maintain proper posture and working technique. Consequently, workers lose their ability to safely and effectively perform their duties. Thus, understanding the physical demands of labor-intensive work is of great importance in protecting workers’ safety, and maintaining productivity. Current fatigue assessments methods, including surveys and questionnaires, are subjective and lack reliability. Objective fatigue assessments based on physiological data are more reliable, however they are cumbersome to implement in real work conditions. There is a need for an objective fatigue assessment method that can monitor physical fatigue with minimal intrusion. The goal of this study was to investigate whether jerk, the time-derivative of acceleration, can be used to objectively detect physical fatigue. A pilot study on masons was conducted to determine if physical fatigue can be detected by changes in jerk values. Ten participants performed a bricklaying task using forty-five concrete masonry units (CMU). Seven body segments, namely the hands, forearms, upper arms, and pelvis, were selected for placement of IMU sensors to measure the segment accelerations. Jerk was calculated from the measured acceleration via numerical differentiation. Characteristic values of the jerk at the beginning and end of the bricklaying task were obtained to represent the rested and fatigued states. They were then compared for significant differences. Jerk values calculated from the IMU sensors located on the upper arms and pelvis showed significant differences between rested and fatigued states. The results of this pilot study indicate that the characteristic jerk can be used to detect physical fatigue, however caution must be taken in selecting sensor locations to reduce the influence of spurious signals.

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Granberry, Rachael, Nicole Ciavarella, Robert Pettys-Baker, Mary Ellen Berglund, and Brad Holschuh. "No-Power-Required, Touch-Activated Compression Garments for the Treatment of POTS." In 2018 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/dmd2018-6886.

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Postural orthostatic tachycardia syndrome (POTS) is a clinical autonomic disorder characterized by a spike in heart rate and syncope in response to orthostasis, symptoms which then dissipate upon recumbency [1]. Additional symptoms include chronic fatigue, bloating, and nausea [2]. POTS predominately affects females (5:1) between the ages of 15 and 50 years [3]. It is estimated 1 to 3 million are affected by POTS in the United States [4]. While there is no known cure, symptom management requires a multifaceted approach, including physical exercise, counter maneuvers, high salt and fluid intake, and medications, including beta blockers and fludrocortisone [3]. Lower body compression is a core component to POTS treatment, especially during prolonged periods of upright posture. Because POTS disproportionately affects young, otherwise healthy females who have high physical and professional demands, compression garments (CG) are critical to allow this population to carry out their activities of daily living [5].

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Koehler-McNicholas, Sara R., Alana Cataldo, Elizabeth Koch, et al. "Evaluation of a Novel Gait Training Device Using a Pressure Suit to Support Body Weight." In 2018 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/dmd2018-6845.

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Supporting body weight and balance control are foundations of our ability to move and function independently. However, neurological disease, injury, and aging often threaten these prerequisites of functional independence, leading to a decrease in quality of life. In the United States alone, 7.5 million individuals have survived stroke, traumatic brain injury (TBI), or spinal cord injury (SCI), and over a million new patients are diagnosed every year [1–2]. To improve gait function in these patient populations, partial body weight-supported gait training is a widely-used rehabilitation therapy. In general, the therapeutic quality of partial body weight-supported gait training is directly proportional to the amount of time patients are able to tolerate an upright posture (either standing or walking). To achieve an upright posture, therapists must first attach a support system (e.g., gait belt, harness lift system, exoskeleton), then several therapists must assist the patient into a standing position. Depending on the patient’s level of impairment, several therapists may also be needed to support and assist the patient while standing and walking, then again to remove the support system at the end of therapy. Accordingly, multiple therapists are often needed to provide a small quantity of upright physical therapy time with standard support systems. Furthermore, use of standard support systems can be uncomfortable and fatiguing for the patient, further reducing their actual therapeutic treatment time [3].

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Stevens, Tessa, Longhua Zhao, Ryan Courtney, Wei Zhang, and Laura Miller. "Flying Spiders: Effects of the Dragline Length and the Spider Mass in Free-Fall." In ASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/ajkfluids2019-5083.

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Abstract Many species of spiders move from one location to another using a remarkable aerial dispersal “ballooning”. By ballooning, spiders can reach distances as far as 3200 km and heights of up to 5 km. Though a large number of observations of spider ballooning have been reported, it remains a mysterious phenomenon due to the limited scientific observation of spider ballooning in the field, high uncertainties of the meteorological conditions and insufficient controlled laboratory experiments. Most of the ballooning spiders are spiderlings and spiders under 3 mm in length and 0.2 to 2 mg in mass with a few exceptions of large spiders (over 3 mm in length, over 5 mg in mass). What physical mechanism dominates the three stages of spider ballooning — take-off, flight, and settling? Many factors have been identified to influence the physical mechanism, including a spider’s mass, morphology, posture, the silken dragline properties, and local meteorological conditions (e.g., turbulence level, temperature and humidity). A thorough understanding of the roles of key parameters is not only of ecological significance but also critical to advanced bio-inspired technologies of airborne robotic devices. This work aims to determine how the dragline length and spider mass affect the interaction of the spider-dragline system in the free-fall scenario. Experiments using a thread of different lengths and a sphere of different masses to mimic the spider-dragline were carried out. The first sets of tests focused on the spider-dragline system, rather than the fluid flow. High-speed images of a spider-dragline falling in a closed container of air were recorded with 1500 frames per second at Reynolds numbers of several thousand, based on the spider dragline and the local relative velocity. Image data allow for tracking the vertical velocities and acceleration of the spider-dragline, as well as the drag force acting on the spider-dragline. Terminal velocities in the settling stage are compared with estimates using various fluid dynamics models in previous work. Such results under controlled laboratory conditions are expected to shed lights on the intriguing flow physics of spider ballooning at the settling stage and to inform future experiments and numerical models.

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Wiechel, John, Sandra Metzler, Dawn Freyder, and Nick Kloppenborg. "Human Fall Evaluation Using Motion Capture and Human Modeling." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-66790.

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Reconstructing the mechanics and determining the cause of a person falling from a height in the absence of witness observations or a statement from the victim can be quite challenging. Often there is little information available beyond the final resting position of the victim and the injuries they sustained. The mechanics of a fall must follow the physics of falling bodies and this physics provides an additional source of information about how the fall occurred. Computational, physics-based simulations can be utilized to model the free-fall portion of the fall kinematics and to analyze biomechanical injury mechanisms. However, an accurate determination of the overall fall kinematics, including the initial conditions and any specific contributions of the person(s) involved, must include the correct position and posture of the individual prior to the fall. Frequently this phase of the analysis includes voluntary movement on the part of the fall victim, which cannot be modeled with simulations using anthropomorphic test devices (ATDs). One approach that has been utilized in the past to overcome this limitation is to run the simulations utilizing a number of different initial conditions for the fall victim. While fall simulations allow the initial conditions of the fall to be varied, they are unable to include the active movement of the subject, and the resulting interaction with other objects in the environment immediately prior to or during the fall. Furthermore, accurate contact interactions between the fall victim and multiple objects in their environment can be difficult to model within the simulation, as they are dependent on the knowledge of material properties of these objects and the environment such as elasticity and damping. Motion capture technology, however, allows active subject movement and behaviors to be captured in a quantitative, three-dimensional manner. This information can then be utilized within the fall simulation to more accurately model the initial fall conditions. This paper presents a methodology for reconstructing fall mechanics using a combination of motion capture, human body simulation, and injury biomechanics. This methodology uses as an example a fall situation where interaction between the fall victim and specific objects in the environment, as well as voluntary movements by the fall victim immediately prior to the accident, provided information that could not be otherwise obtained. Motion capture was first used to record the possible motions of a person in the early stages of the fall. The initial position of the fall victim within the physics based simulation of the body in free fall was determined utilizing the individual body segment and joint angles from the motion capture analysis. The methodology is applied to a real world case example and compared with the actual outcome.

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Arima, Masakazu, and Shotaro Kii. "Development of an Autonomous Human Monitoring System for Preventative Safety in Sea Transportation." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-10504.

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The purpose of this study is to develop a human monitoring system for preventative safety in sea transportation. The final goal of this research is to be able to detect even a small change in the physical condition of the crew such as inattention or lapse of concentration during a voyage and to call his/her attention to the navigation of the ship before accidents or dangerous minor incidents occur. This paper deals with autonomous facial expression monitoring system and ECG analysis using a mini physiological measuring system. Ship’s captain and/or chief officer is usually walking around in the navigation bridge so as to maintain ship’s safety. Human monitoring in sea transportation is more difficult than cases of aeroplane pilot, train or bus driver who are sitting on their own seat during operation. The authors have established an autonomous facial-expression monitoring system, named ‘KII (Kinetic Information Integrator) system.’ This system consists of multiple network cameras and Microsoft’s KINECT sensor. The KINECT sensor has an ability to detect subject’s posture and skeleton position in three dimensions. At the least two network cameras will be controlled autonomously so as to follow subject’s face from different directions even though he or she is walking around in the navigation bridge. And the rest network cameras are following his activities by zoomed out. Field experiment of the KII system has been conducted on board the training ship ‘Fukae-maru’ of Kobe University. Navigation officer’s face was followed by the system during operation, and the effectiveness and validity of the system has been demonstrated. It is thus thought to reach the stage of practical application. The heart is controlled by the autonomic nervous system, and the sympathetic nervous system and parasympathetic nervous system are well known to represent the mentally stressed or relaxed states, respectively. Heart rate variability was analysed and subject’s physiological and psychological changes during navigation were also discussed.

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