Academic literature on the topic 'Strips of Litmus paper'

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Journal articles on the topic "Strips of Litmus paper"

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Maupin, G. W. "Test for the Presence of Asphalt Antistripping Additive." Transportation Research Record: Journal of the Transportation Research Board 1929, no. 1 (January 2005): 46–51. http://dx.doi.org/10.1177/0361198105192900106.

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A small device available commercially uses litmus paper and a spectro-photometer to analyze vapors from hot liquid asphalt binders and mixtures to determine the percentage of antistripping additive present. Approximately 60 five-point additive content–color index count regressions were performed on binders and mixtures to determine how well the device measured additive content. The regressions basically fit the quadratic format used by the manufacturer in the recommended calibration process. The regressions were best when the litmus color index count was calculated by subtracting the initial count of the blank strip from the final count after exposure from the mixtures. Changes to the instrument software and testing temperature were necessary as the investigation progressed to accommodate different grades of binders. After the planned testing was completed, some retesting of the binders was performed with the use of modified equipment and procedures. The changes appeared to improve the consistency of the results. Test results with mixtures were less accurate than for binders; however, if the vapor trap is modified as described, the accuracy for mixtures should be improved substantially. Because the test can be performed quickly, it would be possible to perform multiple tests on a sample. Multiple tests would increase the confidence of the test results.
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Yoo, Yeongsik, and Woo Sik Yoo. "Turning Image Sensors into Position and Time Sensitive Quantitative Colorimetric Data Sources with the Aid of Novel Image Processing/Analysis Software." Sensors 20, no. 22 (November 10, 2020): 6418. http://dx.doi.org/10.3390/s20226418.

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Still images and video images acquired from image sensors are very valuable sources of information. From still images, position-sensitive, quantitative intensity, or colorimetric information can be obtained. Video images made of a time series of still images can provide time-dependent, quantitative intensity, or colorimetric information in addition to the position-sensitive information from a single still image. With the aid of novel image processing/analysis software, extraction of position- and time-sensitive quantitative colorimetric information was demonstrated from still image and video images of litmus test strips for pH tests of solutions. Visual inspection of the color change in the litmus test strips after chemical reaction with chemical solutions is typically exercised. Visual comparison of the color of the test solution with a standard color chart provides an approximate pH value to the nearest whole number. Accurate colorimetric quantification and dynamic analysis of chemical properties from captured still images and recorded video images of test solutions using novel image processing/analysis software are proposed with experimental feasibility study results towards value-added image sensor applications. Position- and time-sensitive quantitative colorimetric measurements and analysis examples are demonstrated.
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Steffel, Margaret J. "Re-blue-ing Blue Litmus Paper." Journal of Chemical Education 75, no. 2 (February 1998): 183. http://dx.doi.org/10.1021/ed075p183.1.

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Myers, David R., and Joseph Crane. "Re-Blue-ing Blue Litmus Paper." Journal of Chemical Education 76, no. 3 (March 1999): 319. http://dx.doi.org/10.1021/ed076p319.2.

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Smith, Pauline. "Implementing the change – Litmus paper to pH paper." Journal of Neonatal Nursing 12, no. 3 (June 2006): 86–90. http://dx.doi.org/10.1016/j.jnn.2006.03.005.

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Yamaguchi, Koji, Kazuo Chijiiwa, Shuji Shimizu, Kazunori Yokohata, and Masao Tanaka. "Litmus Paper Helps Detect Potential Pancreatoenterostomy Leakage." American Journal of Surgery 175, no. 3 (March 1998): 227–28. http://dx.doi.org/10.1016/s0002-9610(97)00290-0.

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Volosjanko, O. V., M. V. Patyka, S. A. Tereshchenko, R. A. Pelenjo, and V. Yu Kassich. "Comparison of enzymatic properties of production strains of microorganisms used in the bakery industry with those of reference strains." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 21, no. 96 (December 14, 2019): 158–63. http://dx.doi.org/10.32718/nvlvet9628.

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The article deals with the results of the comparative analysis of the enzymatic properties of the production strains of Saccharomyces cerevisiae, Candida milleri and Lactobacillus plantarum,which were isolated from the ferment used in the production facilities of the Kiev region with the properties of the reference strains purchased in the Russian Federation. There were investigated the properties of two production strains of Saccharomyces cerevisiae and Candida milleri and one strain of Lactobacillus plantarum. The isolation of the production strains was carried out by generally accepted methods in microbiology, and their identification was carried out on the basis of the results of the investigation of morphological features and cultural and enzymatic properties according to the determinant of bacteria Burge (1997). The biochemical properties of the bacteria were studied by the indicators of their relation to oxygen, the ability to break down carbohydrates with the accumulation of certain products of metabolism. To determine the ability to ferment carbohydrates and alcohols used short and long “colored” series of Giss. The short series included environments with glucose, lactose, sucrose, maltose and mannitol, and in the long – additionally introduced environments with arabinose, xylose, rhamnose, galactose, as well as inulin, starch, dextrin and glycerol, dulcite and inositol. The incubation was carried out in a thermostat at a temperature of 30 ± 1 °C, and the results were evaluated in 2–4 days, taking into account the change whether there is no change in the color of the indicator and the environment, the appearance or absence of gas in the float, etc. Proteolytic activity was investigated for the ability of microorganisms to dilute gelatin and peptone milk, catalase – by interaction with a 10% solution of hydrogen peroxide, the ability to synthesize indole – Morel method, and ammonia and hydrogen by changing the color of the strip of litmus paper impregnated with the Andrade reagent and lead acetate solution, respectively. It is installed, that the Saccharomyces cerevisiae production strains used at the production facilities of the Kyiv region, as well as the reference strain purchased from the Russian Federation, they fermented glucose, galactose, sucrose, maltose, trehalose, melibiosis, raffinose, melecitosis and ethanol and did not ferment cellobiose, rhamnose, lactose and insulin. However, unlike the reference strains, the production strains did not have the ability to ferment xylose. Candida milleri strains, unlike Saccharomyces cerevisiae strains, do not have the ability to ferment maltose and, unlike reference strains, their production strains do not ferment xylose. The searches have found no differences in the enzymatic properties of the reference and production strain of Lactobacillus plantarum. Both microorganisms fermented glucose, galactose, sucrose, maltose, lactose, raffinose, mannitol and did not ferment rhamnose, arabinose and xylose. Based on the results of microbiological searches of production strains of Lactobacillus plantarum, Lactobacillus fermenti, Saccharomyces cerevisiae and Candida milleri, in particular the search of their enzymatic properties by means of the standardized colorimetric identification system KB009 TM HiCarburgate Kit, at the Ukrainian Laboratory of Quality and Product Safety at the AIC of the National University of Bioresources and nature management of Ukraine were certified the following strains: Lactobacillus plantarum LPR-2018/5; Lactobacillus fermenti LLF-2018/5, Saccharomyces cerevisiae SLC-2017/5, Candida milleri CLM-2017/7.
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Steffel, Margaret J. "Re-Blue-ing Blue Litmus Paper (the author replies)." Journal of Chemical Education 76, no. 3 (March 1999): 319. http://dx.doi.org/10.1021/ed076p319.3.

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Krylov, Nikolai A., and Edwin L. Rogers. "Folding Noneuclidean Strips of Paper." Mathematics Magazine 84, no. 4 (October 2011): 289–94. http://dx.doi.org/10.4169/math.mag.84.4.289.

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Zentani, A., and J. Burslem. "BET 4: USE OF LITMUS PAPER IN CHEMICAL EYE INJURY." Emergency Medicine Journal 26, no. 12 (November 24, 2009): 887. http://dx.doi.org/10.1136/emj.2009.086124.

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Dissertations / Theses on the topic "Strips of Litmus paper"

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Beattie, Ewan. "Influence of patterns in paper-based strips onmechanical properties." Thesis, KTH, Maskinkonstruktion (Inst.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-235977.

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This project set out to determine, by experimentation, what changes could be made to the material properties of paper-based strips by making different patterns of incisions. The purpose of the project was to evaluate the possibilities of paper-based strips as tourniquets in clinical use for venepuncture, in which a hypodermic needle is inserted into a vein. A tourniquet is required, at a site closer to the heart than where the needle is inserted, to exert a pressure small enough to allowblood to continue being pumped through the arteries, but large enough to stop blood flowing backthrough the veins. In this way the veins become visible and enable a needle to be inserted into one of them. The paper-based strips were each 50mm by 27mm, and their properties to be examined  were the tearing strength and the extension under a range of forces. Thirty one patterns were tested, four times each. This project has aimed to use force/extension graphs to assess different pattern types for their potential use as tourniquets during venepuncture procedures.
I det här arbetet undersöktes hur pappersremsors egenskaper förändras med olika utskurna mönster. Syftet var att ta fram och utvärdera en experimentell testmetod för att särskilja och utvärdera funktionen hos pappersremsorna med tillhörande mönster. Remsorna är tänkta användas som stasband när man ska ta blodprov i vården. Stasbandet ska ansätta ett trycktillräckligt lågt för att tillåta blodgenomströmning i artärer men tillräckligt högt för att stoppa blodgenomströmning i venerna. Om detta uppfylls blir venerna synliga och det blir lättare att sticka nålen i en ven, som annars kan vara svår att se. Remsorna, med area 128 x 27 mm2 där 50x 27 mm2 är täckt med mönster, utvärderades med avseende på sträckgräns och töjning vid olika laster. Trettioett mönster testades, varje prov upprepades fyra gånger. Resultaten visas i krafttöjningsdiagram. Den framtagana testmetoden kan användas som en första screening av olikamönster i pappersremsor för att studera hur de kan användas som stasband.
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Masetty, Manaswini. "A Smartphone Enabled Molecular Diagnostic Toolkit to Detect Pathogens via Isothermal Nucleic Acid Amplification on Pre-Dried Disposable Paper Strips." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627664394713446.

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Chang, Yin-Tzu, and 張吟慈. "Quantitative color measurement of litmus paper using colorsensor." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/922447.

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碩士
義守大學
電子工程學系
107
This paper uses Arduion MEGA2560 development board as the main control core, and with color recognition module, adopts 12C BUS, I / O as the transmission mode of this article. Through the display module, users can quickly grasp the current measurement. PH value, and can set the color correction value according to the current environment. When the detection is abnormal, the screen will also pop up the information to inform the user, so as to correct the value or reset the instrument. This design provides a fast and easy-to-use measuring instrument. Compared with the current PH detector (pen), it is cheaper and provides a liquid crystal display module, which can display the PH value instantly, and can also use the computer terminal software. Connected to the MEGA2560 used in this paper, the measured PH value is transmitted to the computer, so that the detected value can be stored together with the software.
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Liao, Wei-Ju, and 廖偉汝. "Printable surface enhanced Raman scattering strips on paper with in-situ growth of gold nanoparticles." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/13245407290164959468.

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碩士
國立陽明大學
生醫光電研究所
101
Surface enhanced Raman scattering (SERS) is being developed to challenge and compete with existing conventional technologies used for biomolecular sensing such as fluorescence and mass spectroscopy. SERS retains the molecular fingerprint of Raman spectroscopy (RS) but improves upon the inherent low scattering cross-section in RS with the help of metal nanoparticles (NPs). However, spectroscopic techniques, such as SERS, requires specialized substrates, skills and controlled laboratory environments which are generally expensive, nearly always complex and in many ways time consuming. To increase the visibility of SERS in common daily usage in drug administration offices, homeland security, or hospitals, we introduce the SERS strips to lessen the burden of technology built-in the process that we believe could make it more competitive with other techniques for similar purposes. SERS strips are printed, via a common ink-jet printer connected to a computer, on paper with in-situ growth of gold nanoparticles (AuNPs). Components of human sweat were used as a bio-ink to reduce HAuCl 4 (gold containing salt) forming the AuNPs on paper. Plasmons generated in these AuNPs when irradiated with suitable light increase the local electric field and in turn the scattering cross-section for Raman scattering of selected analytes. SERS strips are capable of absorbing analyte molecules readily and firmly. We demonstrate the detection of Rhodamine 6G, a standard Raman analyte, Malachite green, an anti-fungal agent in pisciculture, and Iprodione, a pesticide in fruits and vegetables, at different concentration levels, ranging from μM - nM, on these strips to show its efficacy in sensor applications. Development of this inexpensive SERS strips for detection of toxic chemical will be important for health applications.
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Books on the topic "Strips of Litmus paper"

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Ovaska, Janne. Sand-paper comix. [Seattle, Wash.]: Starhead Comix, 1985.

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Hinges: Paper tigers. Berkeley, CA: Image Comics, 2016.

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Nickel, Scott. Incredible Rockhead: Rock, paper, scissorlegz. Mankato, Minn: Capstone Stone Arch Books, 2012.

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Royston, Angela. Papel: Miremos tiras comicas. Chicago, IL: Heinemann Library, 2005.

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Phineas and Ferb Science Lab. New York, USA: Scholastic Inc., 2011.

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Doyle, Payne. Hexagonal Graph Paper Notebook: Chemistry, Litmus Test, Funny Science Cover, Organic and Bio Chemistry, Hexagonal Graph Paper for Drawing Chemistry Structures. Independently Published, 2020.

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artist, Chiang Cliff, Wilson Matthew 1981 colorist, and Fletcher Jared K. letterer, eds. Paper Girls, Vol. 4. Image Comics, 2018.

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artist, Chiang Cliff, Wilson Matthew 1981 colorist, and Fletcher Jared K. letterer, eds. Paper girls, Vol. 1. Image Comics, 2016.

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illustrator, Chiang Cliff, Wilson Matthew 1981-, and Fletcher Jared K, eds. Paper Girls, Vol. 3. Image Comics, 2017.

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artist, Chiang Cliff, Wilson Matthew 1981 colorist, and Fletcher Jared K. letters, eds. Paper Girls, Vol. 2. Image Comics, 2016.

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Book chapters on the topic "Strips of Litmus paper"

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Simons, Anthony J. H., Monique Snoeck, and Kitty S. Y. Hung. "Design Patterns as Litmus Paper to Test the Strength of Object-Oriented Methods." In OOIS’98, 129–47. London: Springer London, 1998. http://dx.doi.org/10.1007/978-1-4471-0895-5_10.

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Dulchinos, Victoria. "Evaluation of Usability and Workload Associated with Paper Strips as Compared to Virtual Flight Strips Used for Ramp Operations." In Advances in Usability, User Experience and Assistive Technology, 603–14. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-94947-5_61.

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Boulton, Alan A. "The Automated Analysis of Absorbent and Fluorescent Substances Separated on Paper Strips." In Methods of Biochemical Analysis, 327–93. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2006. http://dx.doi.org/10.1002/9780470110348.ch7.

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Armstrong, Alasdair, Brian Campbell, Ben Simner, Christopher Pulte, and Peter Sewell. "Isla: Integrating Full-Scale ISA Semantics and Axiomatic Concurrency Models." In Computer Aided Verification, 303–16. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-81685-8_14.

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AbstractArchitecture specifications such as Armv8-A and RISC-V are the ultimate foundation for software verification and the correctness criteria for hardware verification. They should define the allowed sequential and relaxed-memory concurrency behaviour of programs, but hitherto there has been no integration of full-scale instruction-set architecture (ISA) semantics with axiomatic concurrency models, either in mathematics or in tools. These ISA semantics can be surprisingly large and intricate, e.g. 100k+ lines for Armv8-A. In this paper we present a tool, Isla, for computing the allowed behaviours of concurrent litmus tests with respect to full-scale ISA definitions, in Sail, and arbitrary axiomatic relaxed-memory concurrency models, in the Cat language. It is based on a generic symbolic engine for Sail ISA specifications, which should be valuable also for other verification tasks. We equip the tool with a web interface to make it widely accessible, and illustrate and evaluate it for Armv8-A and RISC-V. By using full-scale and authoritative ISA semantics, this lets one evaluate litmus tests using arbitrary user instructions with high confidence. Moreover, because these ISA specifications give detailed and validated definitions of the sequential aspects of systems functionality, as used by hypervisors and operating systems, e.g. instruction fetch, exceptions, and address translation, our tool provides a basis for developing concurrency semantics for these. We demonstrate this for the Armv8-A instruction-fetch model and self-modifying code examples of Simner et al.
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Van Gennip, Albert H., Henk Van Lenthe, Tetsuya Ito, Albert H. Bootsma, Arno C. Van Cruchten, Yoshiro Wada, and Andre B. P. Van Kuilenburg. "HPLC/ESI Tandem-MS of Liquid Urine or Urine Soaked Filter-Paper Strips for the Detection of Thymine-Uraciluria and Dihydropyrimidinuria." In Purine and Pyrimidine Metabolism in Man X, 377–82. Boston, MA: Springer US, 2002. http://dx.doi.org/10.1007/0-306-46843-3_72.

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"Strips of Paper." In The Paper Puzzle Book, 133–49. WORLD SCIENTIFIC, 2018. http://dx.doi.org/10.1142/9789813202429_0005.

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"Spinning paper into glass: transforming flight progress strips." In Contemporary Issues in Human Factors and Aviation Safety, 307–38. Routledge, 2017. http://dx.doi.org/10.4324/9781315259482-23.

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Zava, Alberto. "Tiziano Terzani e l’identità proibita." In Diaspore. Venice: Edizioni Ca' Foscari, 2020. http://dx.doi.org/10.30687/978-88-6969-396-0/021.

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In the travel journalism by Tiziano Terzani the concepts of boundary and identity are often declinated and interpreted differently, and not intended in official perspectives; the attitude of the travelling writer-journalist is always oriented towards a full involvement in the local traditions and characteristics, with the manifest intention of canceling – albeit for the limited time of the journey – the “otherness” or, more precisely, take it, adopting the point of view of others. The paradox – and direct experience of the Tuscan journalist – occurs when, once the distance is cancelled, the country of adoption ends up rejecting him: a story of love and attraction for the Eastern world – in particular the Chinese one – thematic core of many travel reports by Terzani and litmus paper of his own travel journalism.
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Kim, Jessica. "A Carnival of the Grotesque: Feminine Imperial Flânerie in Virginia Woolf’s “Street Haunting” and Una Marson’s “Little Brown Girl”." In Virginia Woolf and Her Female Contemporaries. Liverpool University Press, 2016. http://dx.doi.org/10.5949/liverpool/9781942954088.003.0014.

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This paper demonstrates the operation of feminine imperial flânerie, or engagement with the imperial figure in the context of the traditionally male urban pastime of leisurely street-walking, in Virginia Woolf’s short story “Street Haunting” and Una Marson’s poem “Little Brown Girl” as they register related responses to a socially abject identity ever-hovering on the horizon of each writer’s attempts at self-identification as gendered subjects in their work. Specifically, the abject figure serves as a litmus test for each androgynous narrator’s choice to either assimilate with or self-differentiate from traditional national masculine perspectives of hegemonic cultural and political discourse. Each writer’s either sympathetic or distancing treatment of the imperial abject subject in the context of a potentially liberating flâneurial setting thus enacts a specific response to the question of British women modernists’ own degree of otherness as newly arrived observers under the auspices of the national patriarchal imperial complex.
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Rizvi, Syed Mohammad Haider, and Andy Dearden. "KHETI." In Open and Distance Learning Initiatives for Sustainable Development, 163–74. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-2621-6.ch008.

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The advancements in Information and Communication Technologies (ICTs) and their applications in development arenas have tremendously boosted prospects of human development. In education and agriculture domains ICTs have been applied and paid dividends. In this paper, an innovative and participatory designed ICT solution – ‘Knowledge Help Extension Technology Initiative (KHETI)' that is meant to ensure flow of agriculture information in real time to poor farmers at remote locations has been discussed. KHETI has leveraged upon the power of ICTs, particularly the multi-media mobiles phones to boost the extension services. It has features to construct, record, play and sending Short Dialogue Strips. The system and its functionalities are speeding-up communications through images and voices amongst various stakeholders and Agriculture Specialist with help of mobiles to get back responses on their queries, problems and other areas of interest. The paper has dealt in detail about KHETI and its possible extension in open and distance learning services for facilitating access to education facilities.
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Conference papers on the topic "Strips of Litmus paper"

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Paolesse, R., G. Pomarico, D. Monti, and C. Di Natale. "SM2.3 - Silicon Corrole based paper strips for the visual determination of fluoride ion." In 17th International Meeting on Chemical Sensors - IMCS 2018. AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2018. http://dx.doi.org/10.5162/imcs2018/sm2.3.

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Kim, Sang-Ha, Beomsu Shin, Seok Jeong Lee, Myoung Kyu Lee, Won-Yeon Lee, and Suk Joong Yong. "Comparison of pleural fluid pH measurements: blood gas analyzer, pH indicator stick, litmus paper, and point-of-care testing for blood gases." In ERS International Congress 2018 abstracts. European Respiratory Society, 2018. http://dx.doi.org/10.1183/13993003.congress-2018.pa2872.

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Sun, Guowei, Peihua Han, Yuxin Xu, Yong Bai, and Hamad Hameed. "Fatigue Analysis of Metallic Strips Flexible Pipe." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77384.

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Metallic strips flexible pipe (MSFP) is widely regarded as an alternative for submarine pipelines. This paper presents a methodology for calculating the fatigue life of MSFP. Firstly, given a specific working condition of MSFP, the dynamic responses of MSFP are calculated through OrcaFlex. The obtained results from the global analysis are then implemented into a finite element model in ABAQUS to determine the stress-history curves of each steel strips layer. The estimated fatigue life is calculated by rainflow counting algorithms, S-N curve and Miner’s rule which are coded in MATLAB. Additional study about average stress correction is carried out, which might be useful for its marine engineering applications.
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Rahman, M. Shafiqur, and Uttam K. Chakravarty. "Characterizations of the Paper-Based Microfluidic Devices Used for Detecting Fentanyl and Related Synthetic Opioids." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-11581.

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Abstract The design and analysis of a paper-based microfluidic analytical device (μPAD) are presented in this paper for the detection of fentanyl and related synthetic opioids. Fentanyl, a synthetic opioid, is an extremely fast-acting synthetic narcotic analgesic having a high potency of approximately 100 to 200 times that of morphine. Detection of fentanyl can be done by colorimetric assays, i.e., spot tests with paper strips and μPADs which offer speed, simplicity of operation, portability, and affordability. The microfluidic behavior of liquid specimen and paper in the μPADs and test strips play a significant role in drug detection methods. Therefore, the study contains the fabrication of the test device using 3D printing and analysis of microfluidic behavior of the paper-based fentanyl test device. A multiphase computational fluid dynamics (CFD) model of a 3D microchannel is developed to evaluate the microfluidic properties. The CFD model incorporates the properties of cellulose and fentanyl solution to determine the flow parameters using the volume of fluid method. Wicking in the cellulose paper is studied analytically considering the Lucas-Washburn equation and Darcy’s law. Experiments with the fabricated μPAD and commercial test-kit samples are also conducted to compare the experimental results with the results for the flow parameters found from the numerical simulation.
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Chen, L., and P. J. Maziasz. "Clad Metal Strips and Foils Engineered for High-Temperature Performance." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68613.

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In order to increase the engine efficiencies in small size gas turbines and microturbines, recuperators with operating temperatures over 700°C have been developed and evaluated recently. This provides challenges to materials developers and researchers for new solutions in high temperature alloys. The alloys for recuperators should have good performance in high temperature strength, creep resistance and corrosion resistance between 700∼750°C, while their cost should be kept within a reasonable range. Traditionally, clad metals by roll bonding provide both functionality and low cost solutions in demanding corrosion resistance applications and their manufacturing has been well established in large scale production. In this work, cladding technologies, particularly roll bonding, have been reviewed. Two clad metal system approaches, e.g. simple clad metal and clad metal with diffusion alloying, applied for high temperature applications are discussed. The examples of both approaches (SOFC interconnect development, catalytic converter substrate) are presented with test results. Finally, the paper presents a preliminary feasibility study of clad metal for recuperators.
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He, Chuan, Tianyu Long, Mingdao Xin, and Benjamin T. F. Chung. "An Experimental Investigation for Flow Past a Circular Cylinder With Rectangular Strips." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32945.

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This paper reports an experimental investigation for fluid flow past a circular cylinder with two small rectangular strips and single sharp-edge strips on its surface. The experimental results reflected that different arrangements or dimensions of the strips produced significantly different effects on the flow. The forward step caused a stronger disturbance with a small increase in drag. The backward step arrangement softened the disturbance but reduced the drag coefficient by 33%.
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Greely, Scott, Grover Bennett, R. S. Amano, Krishna S. Guntur, and Shyam Singh. "Study of Uniform Heating and Efficiency of Paper Mill Drying Procedures." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47064.

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The Paper Mill Project goal is to improve upon the uniform heating of a continuous paper sheet flowing across a heat source for the purpose of drying the paper. The project tests different porous media to achieve uniform heat distribution across the paper. Existing designs overheat the paper to overcome the uneven heat distribution caused by uneven flow velocities; current designs also achieve low overall efficiency. This project attempts to test the effect porous media has on creating even heat distributions across the paper sheet, and which type of porous media achieves the greatest overall efficiency. This project was conducted in two phases; the first phase tests the different porous medium drying a single sheet conveying at two different sheet velocities. The second phase tested the different porous medium drying four stationary strips of paper for a length of one minute.
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8

Benevides, Mario Folhadela, and Anna Moreira De Oliveira. "Propositional Dynamic Logic for Planning." In Workshop Brasileiro de Lógica. Sociedade Brasileira de Computação - SBC, 2020. http://dx.doi.org/10.5753/wbl.2020.11454.

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This paper presents an on going work on Propositional Dynamic Logic PDL in which atomic programs are STRIPS actions. We think that this new framework is appropriate to reasoning about actions and plans when dealing with planning problem. Unlike, PDL atomic programs, STRIPS actions have pre-conditions and post-conditions. We propose a novel operator of action composition that takes in account the features of STRIPS actions. We propose an axiomatization and prove its soundness. Completeness, decidability and computational complexity are left as future work.
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9

Huang, Shyh-Chin, and Jaw-Lin Wang. "An Approach to the Vibration Analysis of Confocal Elliptic Annular Plates." In ASME 1991 Design Technical Conferences. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/detc1991-0295.

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Abstract An approach is presented for the vibration analysis of annular, confocal, elliptic plate. The approach employs the separation of variables, finite difference, and receptance concept. This method is then expanded to square plate with center crack, or with more complex geometries. The basic idea of this paper is: split the plate into several strips and get the strips’ characteristic values, then compose these strips by the receptance method to get the characteristics value of the plate. Numerical results for certain cases are compared to known data, and precise agreement is met.
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10

Nijenhuis, Marijn, J. P. Meijaard, and Dannis M. Brouwer. "A Spatial Parametric Model for the Nonlinear Stiffness Characteristics of Flexure Strips." 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/detc2018-86024.

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The flexure strip is commonly used to provide support stiffness in flexure mechanisms for precision applications. While the flexure strip is often treated in a simplified form, e.g. by assuming planar deformation or linearized stiffness, the deformation in practice is spatial and sufficiently large that nonlinear effects due to the geometrical stiffness are significant. This paper presents an understandable analytical model for the nonlinear stiffness characteristics of flexure strips that deform spatially due to a general 3-D loading condition. This model provides closed-form expressions in a mixed stiffness and compliance matrix format that is tailored to flexure mechanism analysis. The effects of bending, elongation, and torsion deformation are taken into account. The geometrically nonlinear effects of the model are verified numerically. The approach for deriving closed-form solutions in a nonlinear context is detailed in this paper. Based on the Hellinger–Reissner variational principle, it can also be extended to the analysis of multi-flexure strip mechanisms. This is demonstrated with the case of a spatially deforming parallelogram flexure mechanism.
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Reports on the topic "Strips of Litmus paper"

1

BUHARI, Lateef Oluwafemi. Understanding the Causes of Electoral and Political Violence in Ekiti State, Nigeria: 2007-2010. Intellectual Archive, March 2021. http://dx.doi.org/10.32370/ia_2021_03_17.

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All over the world, elections are the litmus test of democracies. They also serve to consolidate political stability in a given polity just as they have the propensity to engender conflict and violence. Though there is usually competition over the control of the machineries of power, the turning point of that competition into violence becomes imperative in discerning the causes, both remote and immediate of such violence. In the light of the above, this paper notes the volatile nature of elections in Nigeria at large and Ekiti State in particular between 2007 and 2010. It examines plethora of factors leading to electoral fraud and political violence in the state. It further analyses the role of various stakeholders in political violence in the state.
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