Journal articles: 'Triangle test'

1

Möller, Tomas. "A Fast Triangle-Triangle Intersection Test." Journal of Graphics Tools 2, no. 2 (January 1997): 25–30. http://dx.doi.org/10.1080/10867651.1997.10487472.

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Tran, Cam Thi Hong, Phong Quang Nguyen, Quang Thanh Pham, and Dzung Hoang Nguyen. "Is triangle test more powerful than tetrad test in case of high alcoholic beverages?" Science and Technology Development Journal 17, no. 3 (September 30, 2014): 32–41. http://dx.doi.org/10.32508/stdj.v17i3.1499.

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Tetrad test is theoretically more powerful than triangle test. However, in the presence of sensory fatigue-caused foods, the advantage of the tetrad test is lost. In case of alcohol beverage containing 50%abv, triangle test is recommended as a standard protocol because the sensory fatigue caused by ethanol is great enough that leads tetrad test be less powerful than triangle test. In this study, the association between alcohol concentration and power of tetrad as well as triangle was established in cases of alcoholic beverages lower than 50%abv. Based on this result, the alcohol concentration at which the tetrad test is more powerful than triangle test was determined. The power comparisons between triangle test and tetrad test were extended to some alcohol beverages containing 40 and 30%abv. 240 panelists were divided into 8 panels. In each session, both triangle test and tetrad test were performed by a same panel (N = 30) on the samples made from the same alcohol beverage basic with and without citric acid. There were four sessions for each product that corresponded with four increasingly levels of added citric acid (2.192, 3.1, 4.384, 6.2g/L). By applying logistic regression, the power comparison between two tests was based on the correct response proportions (Pc) which were predicted from two variables: acid concentration and protocol. Multivariate logistic regression analysis indicated that there was 84% chance and 38% chance for the tetrad’s Pc to be higher than triangle’s Pc in case of beverage containing 30 and 40%abv, respectively. The results shown that increase alcohol concentration will reduce the power of both triangle and tetrad tests. It was noteworthy that tetrad test was affected more strongly by alcohol than triangle test. These findings suggest that the triangle test can be used as a suitable testing methodology for alcoholic beverages which alcohol concentration is not lower than 40%abv. In case of beverage containing 30%abv, triangle test should be replaced by tetrad test due to the increased reliability of information.

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Ling-yu, Wei. "A faster triangle-to-triangle intersection test algorithm." Computer Animation and Virtual Worlds 25, no. 5-6 (October 11, 2013): 553–59. http://dx.doi.org/10.1002/cav.1558.

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HARRIES, J. M., and G. L. SMITH. "The two-factor triangle test." International Journal of Food Science & Technology 17, no. 2 (June 28, 2007): 153–62. http://dx.doi.org/10.1111/j.1365-2621.1982.tb00172.x.

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Chang, Jung-Woo, and Myung-Soo Kim. "Efficient triangle–triangle intersection test for OBB-based collision detection." Computers & Graphics 33, no. 3 (June 2009): 235–40. http://dx.doi.org/10.1016/j.cag.2009.03.009.

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Tropp, Oren, Ayellet Tal, and Ilan Shimshoni. "A fast triangle to triangle intersection test for collision detection." Computer Animation and Virtual Worlds 17, no. 5 (2006): 527–35. http://dx.doi.org/10.1002/cav.115.

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Du, Jian Jun, Xin Yu Guo, Sheng Lian Lu, Bo Xiang Xiao, and Jian Wei Wu. "Building Three-Dimensional Merged Surface Model from Polygonal Models." Advanced Materials Research 566 (September 2012): 336–41. http://dx.doi.org/10.4028/www.scientific.net/amr.566.336.

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Three-dimensional surface merging plays an important role in rapid prototyping manufacture, physically based modeling and finite element analysis. In this paper, a rapid merging method is proposed to build three-dimensional water-proof surface model from polygonal models. To rapidly determine merging boundaries, collision detection techniques are used to obtain the intersection triangle pairs between the two input models, and then the intersection line loops are accurately computed. Furthermore, triangle tessellation and edge searching method is used to generate new triangles and classify each triangle in models into different triangle sets. Finally, an inclusion test determines the position of each triangle set and stitches the labeled triangle sets into the merged model. The experimental results demonstrate the robustness and adaptability of the presented method.

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Kunert, Joachim, and Michael Meyners. "On the triangle test with replications." Food Quality and Preference 10, no. 6 (November 1999): 477–82. http://dx.doi.org/10.1016/s0950-3293(99)00047-6.

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Rudnicki, Łukasz, Zbigniew Puchała, Paweł Horodecki, and Karol Życzkowski. "Constructive entanglement test from triangle inequality." Journal of Physics A: Mathematical and Theoretical 47, no. 42 (October 9, 2014): 424035. http://dx.doi.org/10.1088/1751-8113/47/42/424035.

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Wang, Jia, Tao Sun, Li Zhou, Yuan Zhi Zhang, and Yuan Yuan Gao. "A 18.4M Triangles/s 122.6 mW Tile Co-Processor for Embedded GPU Systems." Applied Mechanics and Materials 462-463 (November 2013): 1050–54. http://dx.doi.org/10.4028/www.scientific.net/amm.462-463.1050.

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This paper presents an efficient and accurate tile co-processor architecture which can be used in the tile based rendering systems. The design involves two key components, the vertex processing unit and the triangle tiling unit. The former part is used to get the vertices transformed, clipped and projected to generate the triangle list which located in the view frustum while the latter one reads in the triangle data and determines the tile list which indicates tiles that each triangle covers. A modified Bounding BOX (BBOX) test pipeline and a mask screening technology for different overlap types is proposed and employed in the design in order to get faster triangle binning with lower power consumption. The proposed architecture works at the frequency of 270 MHz, gains 18.4 M triangles tiling/sec with a power consumption less than 122.6 mW. The chip is implemented in 0.13 um CMOS technology and consumes 2.5 x 2.5 mm2 totally.

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Prayito, Muhammad. "Learning obstacle on the material circumference and area of triangle in Limpung junior high school number 2." International Journal of Science and Applied Science: Conference Series 1, no. 1 (February 28, 2017): 64. http://dx.doi.org/10.20961/ijsascs.v1i1.5116.

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<p class="Abstract">The purpose of this research was to analyze the characteristics of learning obstacle contained in the concept of circumference and area of a triangle in SMP N 2 Limpung. Data about learning obstacle Obtained through analysis of the results of the students' answers to the test and learning processes within the material circumference and area of triangles. This study is a qualitative study using of didactical design research method. The research result in learning identified material of circumference and area of a triangle were didactical, ontogenic and epistemological obstacle. As for learning obstacle found are: (1) distinguishing concept image material high line, bisecting line, line weight and line axis; (2) determine the high line on the triangular side of the base is not horizontal; (3) Determine the triangle area an obtuse triangle; and (4) visualization of the students regarding the ability to determine the type of triangle and the position of the perpendicular line or field.</p>

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HATAE, Keiko, and Fujio TAKEUTCHI. "On the Proposed Triangle Test Used as a Preference Test." Japanese Journal of Sensory Evaluation 5, no. 1 (2001): 29–35. http://dx.doi.org/10.9763/jjsse.5.29.

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Chirkov, Nick. "Fast 3D Line Segment–Triangle Intersection Test." Journal of Graphics Tools 10, no. 3 (January 2005): 13–18. http://dx.doi.org/10.1080/2151237x.2005.10129201.

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Gallagher, D. L. "Statistical comparison of the triangle test and the two-of-five test for taste and odor evaluation." Water Science and Technology 49, no. 9 (May 1, 2004): 107–14. http://dx.doi.org/10.2166/wst.2004.0546.

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The Triangle test and 2-of-5 test are compared for their ability to evaluate tastes and odors in water and wastewater utilities. Both tests have varying statistical sensitivities. The 2-of-5 test is more sensitive and more powerful than the Triangle test, and generally requires fewer panelists for the same level of statistical confidence. This paper presents a method for determining the number of panelists for either test, and compares the results.

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15

van Lange, Paul A. M. "Confidence in expectations: A test of the triangle hypothesis." European Journal of Personality 6, no. 5 (December 1992): 371–79. http://dx.doi.org/10.1002/per.2410060505.

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Kelley and Stahelski's (1970) triangle hypothesis states that competitors hold homogeneous views of others by assuming that most others are competitive, whereas cooperators or pro‐social people hold more heterogeneous views by assuming that others are either cooperative or competitive. To evaluate the triangle hypothesis, this study examines differences between pro‐socials, individualists, and competitors not only in their expectations about others' choice behaviour, but also in the confidence with which such expectations are held. It was found that pro‐social subjects expected more cooperation than individualists and competitors. More importantly, as predicted on the basis of the triangle hypothesis, pro‐socials were less confident about their expectations than competitors, with individualists holding intermediate levels of confidence.

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Xu, Guan, Hui Shen, and Xiaotao Li. "Active Vision Reconstruction Based on Ratio Invariability of Triangle Areas Generated from Triangle Array in Affine Space." Measurement Science Review 20, no. 4 (August 1, 2020): 162–70. http://dx.doi.org/10.2478/msr-2020-0020.

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AbstractAn active-vision process is presented by the affine invariability of the ratio of triangle areas to reconstruct the 3D object. Firstly, a plate with the triangle array is designed in the same plane of the planar laser. The image of the plate is rectified from the projection space to the affine space by the image of the line at infinity. Then the laser point and the centroids of the triangles constitute a new triangle that bridges the affine space and the original Euclidean space. The object coordinates are solved by the invariant of the triangle area ratio before and after the affine transformation. Finally, the reconstruction accuracy under various measurement conditions is verified by experiments. The influence analyses of the number of line pairs and the accuracy of the extracted point pixels are provided in the experimental results. The average reconstruction errors are 1.54, 1.79, 1.90, and 2.46 mm for the test distance of 550, 600, 650, and 700 mm, which demonstrates the application potential of the approach in the 3D measurement.

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Danaei, Behzad, Nima Karbasizadeh, and Mehdi Tale Masouleh. "A general approach on collision-free workspace determination via triangle-to-triangle intersection test." Robotics and Computer-Integrated Manufacturing 44 (April 2017): 230–41. http://dx.doi.org/10.1016/j.rcim.2016.08.013.

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18

Naraine, Bishnu, and Emam Hoosain. "Activities: Investigating Polygonal Areas: Making Conjectures and Proving Theorems." Mathematics Teacher 91, no. 2 (February 1998): 135–50. http://dx.doi.org/10.5951/mt.91.2.0135.

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The ability to conjecture is one component of mathematical power. This activity, appropriate for students in grades 8 and above, ofiers students an opportunity to explore relationships between and among the areas of various polygons. In a previous activity (Naraine 1993), students were able to discover that when squares are drawn on the sides of a triangle as in figure la, the four triangles will always have the same area, irrespective of the shape of triangle ABC. Similarly, the exercises in this activity allow students to make, test, modify, and prove conjectures about the areas of the various polygons in figure lb and figure lc.

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Sepulveda, C. A., A. J. Garmyn, J. Milopoulos, C. Bendele, and M. F. Miller. "Consumer Triangle Sensory Test with 3 Beef Fajitas." Meat and Muscle Biology 1, no. 3 (January 1, 2017): 19. http://dx.doi.org/10.22175/rmc2017.018.

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20

LAU, KIN-NAM, PATRICIA T. BERGLUND, and EDNA T. HOLM. "USING INCENTIVES IN THE TRIANGLE TEST: A RESPONSE." Journal of Sensory Studies 10, no. 2 (June 1995): 121–26. http://dx.doi.org/10.1111/j.1745-459x.1995.tb00009.x.

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21

Dürr, Peter. "The triangle test compared with signal detection measure." Food Quality and Preference 4, no. 1-2 (January 1993): 99. http://dx.doi.org/10.1016/0950-3293(93)90397-o.

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22

O'Mahony, Michael. "Who told you the triangle test was simple?" Food Quality and Preference 6, no. 4 (January 1995): 227–38. http://dx.doi.org/10.1016/0950-3293(95)00022-4.

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23

Chaves, Kamila Ferreira, Adriana Lucia Wahanik, Michelly Cristiane Paludo, Bianca Iarossi Toledo, Alexandre Montagnana Vicente Leme, Alessandro Antonio Orelli Junior, and Jorge Herman Behrens. "Tetrad vs. triangle test: A case study with Brazilian guarana soft drink." Research, Society and Development 9, no. 4 (March 20, 2020): e166943049. http://dx.doi.org/10.33448/rsd-v9i4.3049.

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Discrimination sensory tests aim to identify if a difference between two similar stimuli is detected. In this study we compared the efficacy of Tetrads and Triangle tests in the difference detection between two samples of guarana soft drink, by means of the calculation of proportion of discriminators and thurstonian distance. Evaluated samples were produced by different syrup clarification methods (activated carbon and ionic exchange column). For each test 99 testers were used; Triangle test evaluated three samples, while Tetrad four samples, in complete randomized blocks. Only Tetrad test was able to detect significant difference between the samples (p<0.05), with a low proportion of discriminators and thurstonian distance inferior to perception limit, demonstrating that Tetrad test is more powerful and sensible than Triangle test.

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Correa, S., C. Militello, and M. Recuero. "Acoustic displacement triangle based on the individual element test." Latin American Journal of Solids and Structures 9, no. 2 (April 2012): 1–12. http://dx.doi.org/10.1590/s1679-78252012000200002.

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BERGLUND, PATRICIA T., KIN-NAM LAU, and EDNA T. HOLM. "IMPROVEMENT OF TRIANGLE TEST DATA BY USE OF INCENTIVES." Journal of Sensory Studies 8, no. 4 (December 1993): 301–16. http://dx.doi.org/10.1111/j.1745-459x.1993.tb00221.x.

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Kruse, Rita, Susanne A. Seuchter, Max P. Baur, and Michael Knapp. "The “possible triangle” test for extreme discordant sib pairs." Genetic Epidemiology 14, no. 6 (1997): 833–38. http://dx.doi.org/10.1002/(sici)1098-2272(1997)14:6<833::aid-gepi45>3.0.co;2-o.

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Chuquichambi, Erick G., Carlos Rey, Rosana Llames, Juan T. Escudero, Alejandro Dorado, and Enric Munar. "Circles Are Detected Faster Than Downward-Pointing Triangles in a Speeded Response Task." Perception 49, no. 10 (September 22, 2020): 1026–42. http://dx.doi.org/10.1177/0301006620957472.

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Simple geometric shapes are associated with facial emotional expressions. According to previous research, a downward-pointing triangle conveys the threatening perception of an angry facial expression, and a circle conveys the pleasant perception of a happy facial expression. Some studies showed that downward-pointing triangles have the advantage to capture attention faster than circles. Other studies proposed that curvature enhances visual detection and guides attention. We tested a downward-pointing triangle and a circle as target stimuli for a speeded response task. The distractors were two stimuli that resulted from the mixture of both targets to control for low-level features’ balanced presentation. We used 3 × 3, 4 × 4, and 5 × 5 matrices to test whether these shapes led attention to an efficient response. In Experiment 1, participants responded faster to the circle than to the downward-pointing triangle. They also responded slower to both targets as the number of distractors increased. In Experiment 2, we replicated the main findings of Experiment 1. Overall, the circle was detected faster than the downward-pointing triangle with small matrices, but this difference decreased as the matrix size increased. We suggest that circles capture attention faster because of the influence of low-level features, that is, curvature in this case.

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DIZIER, M. H., H. QUESNEVILLE, B. PRUM, H. SELINGER-LENEMAN, and F. CLERGET-DARPOUX. "The triangle test statistic (TTS): a test of genetic homogeneity using departure from the triangle constraints in IBD distribution among affected sib-pairs." Annals of Human Genetics 64, no. 5 (September 2000): 433–42. http://dx.doi.org/10.1046/j.1469-1809.2000.6450433.x.

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Pinar, Musa, Tulay Girard, Paul Trapp, and Zeliha Eser. "Services branding triangle." International Journal of Bank Marketing 34, no. 4 (June 6, 2016): 529–49. http://dx.doi.org/10.1108/ijbm-04-2015-0043.

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Purpose – The purpose of this paper is to examine customer, management, and contact personnel perceptions of consumer-based brand equity (CBBE) and its dimensions utilizing a services branding triangle framework in the banking industry. Design/methodology/approach – Data were collected from customers, managers, and contact personnel of three types of banks in Turkey – state, private, and foreign. Findings – The study finds significant external branding gaps between the perceptions of managers and customers and interactive branding gaps between the perceptions of contact personnel and customers, but no internal branding gaps between the perceptions of managers and contact personnel with respect to CBBE dimensions. Research limitations/implications – The sample was limited to Turkish adult citizens of a single major metropolitan area in Turkey and bank personnel in three cities. Originality/value – The services branding triangle framework used in this study allows service brand managers to understand not only the differences in the perceptions of brand equity dimensions of bank customers, managers, and contact personnel, but also provides an opportunity to identify the external, internal, and interactive branding gaps of each of the brand equity dimensions. The findings provide an empirical test for the three promises theory and identifying potential branding gaps resulting from differences between consumer, management, and contact personnel perceptions of CBBE and its dimensions. The paper discusses the implications of the findings in developing a strong services brand and brand equity.

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Nurhasanah, Nurhasanah. "Pengembangan Tes Untuk Mengukur Kemampuan Penalaran Mahasiswa Mata Kuliah Geometri." Pepatudzu : Media Pendidikan dan Sosial Kemasyarakatan 14, no. 1 (May 31, 2018): 62. http://dx.doi.org/10.35329/fkip.v14i1.186.

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The purpose of the research is to develop a test which intentionally used to measure students’ critical ability on the valid Geometry Course. The Research and Development method was employed through the procedure of 4-D model which basically consists of four stages namely; define, design, development, and dissemination. The test is given to students coming from Department of Mathematic Education UNIPA. The finding reveals that there have been forms of final products that are (1) a valid lattice in assessing students’ critical ability on the Geometry Course notably on the subject area of line, angle, triangle deductive reasoning, congruent triangle, Parallel line, distance and number of angle, Parallelograms, Trapezoids, Medians and Midpoints. (2) test to measure students’ critical ability the Geometry Course specifically on area of line, angle, triangle deductive reasoning, congruent triangle, Parallel line, distance and number of angle, Parallelograms, Trapezoids, Medians and Midpoints.

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Samad, Ali, Hairulnizam Bin Mahdin, Rafaqat Kazmi, Rosziati Ibrahim, and Zirawani Baharum. "Multiobjective Test Case Prioritization Using Test Case Effectiveness: Multicriteria Scoring Method." Scientific Programming 2021 (June 24, 2021): 1–13. http://dx.doi.org/10.1155/2021/9988987.

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Modified source code validation is done by regression testing. In regression testing, the time and resources are limited, in which we have to select the minimal test cases from test suites to reduce execution time. The test case minimization process deals with the optimization of the regression testing by removing redundant test cases or prioritizing the test cases. This study proposed a test case prioritization approach based on multiobjective particle swarm optimization (MOPSO) by considering minimum execution time, maximum fault detection ability, and maximum code coverage. The MOPSO algorithm is used for the prioritization of test cases with parameters including execution time, fault detection ability, and code coverage. Three datasets are selected to evaluate the proposed MOPSO technique including TreeDataStructure, JodaTime, and Triangle. The proposed MOPSO is compared with the no ordering, reverse ordering, and random ordering technique for evaluating the effectiveness. The higher values of results represent the more effectiveness and the efficiency of the proposed MOPSO as compared to other approaches for TreeDataStructure, JodaTime, and Triangle datasets. The result is presented to 100-index mode relevant from low to high values; after that, test cases are prioritized. The experiment is conducted on three open-source java applications and evaluated using metrics inclusiveness, precision, and size reduction of a matrix of the test suite. The results revealed that all scenarios performed well in acceptable mode, and the technique is 17% to 86% more effective in terms of inclusiveness, 33% to 85% more effective in terms of precision, and 17% minimum to 86% maximum in size reduction of metrics.

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El-Iraqi, M. E., S. A. Marey, and A. M. Drees. "A MODIFIED Triangle-SHAPE CHISEL PLOW (EVALUATION AND PERFORMANCE TEST)." Misr Journal of Agricultural Engineering 26, no. 2 (April 1, 2009): 644–66. http://dx.doi.org/10.21608/mjae.2009.109079.

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Eom, Jaesung, Jinhwan Ko, and Byung Chai Lee. "A macro plane triangle element from the individual element test." Finite Elements in Analysis and Design 45, no. 6-7 (May 2009): 422–30. http://dx.doi.org/10.1016/j.finel.2008.12.001.

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Bilenky, S. M. "CP-violation and unitarity triangle test of the Standard Model." Physics of Particles and Nuclei 39, no. 5 (September 2008): 641–73. http://dx.doi.org/10.1134/s1063779608050018.

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Jokanovic, Simo. "Two-dimensional line segment–triangle intersection test: revision and enhancement." Visual Computer 35, no. 10 (December 3, 2018): 1347–59. http://dx.doi.org/10.1007/s00371-018-01614-1.

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Chen, Hui Hui, and Cheng Jia. "A Novel Triangle Element Formulation for Static Analysis of Solids." Applied Mechanics and Materials 217-219 (November 2012): 2332–35. http://dx.doi.org/10.4028/www.scientific.net/amm.217-219.2332.

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A new formulation of triangle element is developed. Based on the concept of unsymmetric finite element formulation, classical linear triangle shape functions are used as test functions, and FE-LSPIM TRI3 element shape functions are used as trial functions. The former is fulfill the requirements of intra-element and inter-element continuity in displacement field, and the latter is a good alternative for requirements of completeness in displacement field. Typical test problems for static solids are analyzed. The results show that the proposed element has good accuracy, and is superior to classical linear triangle element and isoparametric quad element.

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Qiu, Zhong Zhu, Shao Lin Gong, Peng Li, and Wen Wen Guo. "Mathematical Model and Numerical Simulation of the Concrete Regenerator." Advanced Materials Research 347-353 (October 2011): 1184–92. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.1184.

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In this paper, the mathematical model of Concrete Thermal Storage Element was introduced, then simulation software FLUENT was used to simulate Concrete Thermal Storage Elements of different cross sections, square, triangle, hexagon and test model. According to the simulation results, the hexagon section regenerator gets the best performance of heat storage, followed by the test model, square section regenerator is the third one, and last is triangle section regenerator.

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KHOIR, AKMALIA, and Eny Kusumawati. "ANALISIS FRAUD TRIANGLE UNTUK MENDETEKSI FINANCIAL STATEMENT FRAUD." IJAB : Indonesian Journal of Accounting and Business 2, no. 1 (November 30, 2020): 72–94. http://dx.doi.org/10.33019/accounting.v2i1.20.

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This study is aimed to analyze the effect of fraud triangle to financial statement fraud on the manufacture companies listed on the Indonesian Stock Exchange in the period 2014-2018. Fraud Triangle on this study are pressure that proxied by financial target, financial stability, external pressure and personal financial need. Opportunity that proxied by ineffective monitoring and nature of industry. Rationalization that proxied by change of auditor. The sampling method in this study is purposive sampling. Total number of sample in this study are 112 samples. Financial statement fraud is obtained by Fscore. The analytical techniques conducted by descriptif statistic dan classical assumption test and also hypothesis was tested using multiple linier regresional method, Adjusted R2 test, F test and t test. The result showed that financial target, external pressure, personal financial and nature of industry significantly affect the financial statement fraud. Meanwhile, financial stability, ineffective monitoring and rationalization have not affected financial statement fraud

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Liu, Zhenyu, and Reza Modarres. "A triangle test for equality of distribution functions in high dimensions." Journal of Nonparametric Statistics 23, no. 3 (September 2011): 605–15. http://dx.doi.org/10.1080/10485252.2010.485644.

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MIA TRI PUSPITANINGRUM, EINDYE TAUFIQ, and SATRIA YUDHIA WIJAYA. "PENGARUH FRAUD TRIANGLE SEBAGAI PREDIKTOR KECURANGAN PELAPORAN KEUANGAN." Jurnal Bisnis dan Akuntansi 21, no. 1 (October 29, 2019): 77–88. http://dx.doi.org/10.34208/jba.v21i1.502.

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The purpose of this study is to examine Influence of external pressure, effective monitoring, and rationalitation to financial fraudulent reporting. The sample used in this study is real estate, property, and building construction companies listed on the Indonesia Stock Exchange (BEI) in the period 2016-2017. By using purposive sampling method, it is obtained as many as 57 real-estate, property, and building construction companies as the study sample. The method of analysis used in this study is logistic regression. In this research also include the overall fit model test, hosmer and lemeshow’s test, goodness of fit test, and classification matrix. Results of this study indicate that the effective monitoring and rationalitation are not significant to financial fraudulent reporting, while external pressure is significant to financial fraudulent reporting.

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Juárez Wysozka, S. R., and P. Kielanowski. "Test of the fourth quark generation from the Cabibbo–Kobayashi–Maskawa matrix." International Journal of Modern Physics A 36, no. 16 (June 2, 2021): 2150110. http://dx.doi.org/10.1142/s0217751x21501104.

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The structure of the mixing matrix in the electroweak quark sector with four generations of quarks is investigated. We conclude that the area of the unitarity quadrangle is not a good choice as a possible measure of the CP violation. In search of new physics, we analyze how the existence of the fourth quark family may influence on the values of the Cabibbo–Kobayashi–Maskawa matrix and we show that one can test for the existence of the fourth generation using the Jarlskog invariants of the known quarks only. The analysis based on the measured unitary triangle exhibits some tension with the assumption of three quark generations. The measurement of the unitarity triangle obtained from the scalar product of the second row/column of the CKM matrix by the complex conjugate of third row/column can provide information about the existence of the fourth generation of quarks.

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Laurinen, P. I., and L. A. Olzak. "Summation of Contrast in Perceived Form from Texture." Perception 26, no. 1_suppl (August 1997): 224. http://dx.doi.org/10.1068/v970121.

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The relative contrast of two superimposed triangles formed by truncated sinusoidal gratings determines which appears more salient. We have previously reported that the saliency of one triangle is selectively enhanced by superimposing a third grating of similar frequency but different orientation. We now ask how the contrasts of the three gratings combine to determine saliency. Stimuli were two superimposed isosceles triangles, formed by overlaying sharply truncated patches of a sinusoidal grating, one at 1.5 cycles deg−1 tilted +45°, the other at 6 cycles deg−1, tilted −45° from vertical. The sharpest-angle apexes pointed in opposite directions (left or right). Contrasts of the gratings were initially adjusted to yield equal performance when observers chose whether the more salient target pointed left or right following a brief (400 ms) monocular exposure. In each test condition a third grating of vertical orientation (spatial frequency 1.5, 3, or 6 cycles deg−1) was added to the entire stimulus at one of six contrast levels ranging from near threshold to 10 × threshold. The point of equal saliency was re-determined from psychometric functions by varying the contrast of one triangle in a 2AFC staircase procedure. The saliency of each triangle was enhanced when the third grating was matched in frequency, but no effect occurred when the third grating differed by an octave (eg was 3 cycles deg−1). Beyond some threshold value of the third grating contrast, the contrast needed to reinstate equal salience was found to be inversely proportional to the contrast of the third grating. Our results are in agreement with the characteristics of higher-level mechanisms that mediate spatial-grain and/or pattern contrast discrimination, and suggest that form-from-texture mechanisms sum component contrasts linearly over a wide range of orientations within a narrow frequency band.

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Sovrano, Valeria Anna, and Angelo Bisazza. "Perception of Subjective Contours in Fish." Perception 38, no. 4 (January 1, 2009): 579–90. http://dx.doi.org/10.1068/p6121.

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The ability of fish to perceive subjective (or illusory) contours, ie contours that lack a physical counterpart in terms of luminance contrast gradients, was investigated. In the first experiment, redtail splitfins ( Xenotoca eiseni), family Goodeidae, were trained to discriminate between a geometric figure (a triangle or a square) on various backgrounds and a background without any figure. Thereafter, the fish performed test trials in which illusory squares or triangles were obtained by (i) interruptions of a background of diagonal lines, (ii) phase-shifting of a background of diagonal lines, and (iii) pacmen spatially arranged to induce perception of Kanizsa subjective surfaces. In all three conditions, fish seemed to generalise their responses to stimuli perceived as subjective contours by humans. Fish chose, correctly, squares or triangles made of interrupted or phase-shifted diagonal lines from uniform backgrounds of diagonal lines, as well as illusory square or triangle Kanizsa figures from figures in which the inducing pacmen were scrambled. In the second experiment, fish were trained to discriminate between a vertical and a horizontal bar with luminance contrast gradients, and then tested with vertically and horizontally oriented illusory bars, created either through interruption or spatial phase-shift of inducing diagonal lines. Fish appeared to be able to generalise the orientation discrimination to illusory contours. These results demonstrate that redtail splitfins are capable of perceiving illusory contours.

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Zhuangsheng, Zhu, Guo Yiyang, and Yang Zhenli. "Study on Initial Gravity Map Matching Technique Based on Triangle Constraint Model." Journal of Navigation 69, no. 2 (September 21, 2015): 353–72. http://dx.doi.org/10.1017/s0373463315000661.

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In this paper, a gravity map-matching algorithm is proposed based on a triangle constraint model. A high-accuracy triangle constraint model is constructed by using a short time and high-accuracy-featured inertial navigation system. In this paper, the principle of the gravity map-matching algorithm based on the triangle constraint model and a triangle matching parameter-parsing method are first introduced in detail. It is verified by test that the method is sensitive to the initial error value. By comparison to the commonly used Iterative Closest Contour Point (ICCP) and Sandia Inertial Terrain Aided Navigation (SITAN) algorithms respectively, the results show that this method is perfect in real-time performance and reliability, and its advantages are more obvious especially with a large initial error.

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Nath, Rahul K., Meera B. Avila, Priyanka Karicherla, and Chandra Somasundaram. "Assessment of Triangle Tilt Surgery in Children with Obstetric Brachial Plexus Injury Using the Pediatric Outcomes Data Collection Instrument." Open Orthopaedics Journal 5, no. 1 (December 14, 2011): 385–88. http://dx.doi.org/10.2174/1874325001105010385.

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Background: The benefits of triangle tilt surgery in children with OBPI have been previously validated through measurements of statistical improvements in Mallet scores and in glenohumeral congruity. The purpose of the current study was to evaluate the effectiveness of triangle tilt surgery through the application of the Pediatric Outcomes Data Collection Instrument, a well validated questionnaire designed to evaluate function and comfort in children with musculoskeletal disorders. Methods: OBPI patients between 2 and 10 years of age who came to our institute for routine office visits between May 2009 and October 2009 were considered to participate in the study. Among the patient group, the first 130 completed surveys who met the study criteria were included in the study. The Pediatric Outcomes Data Collection Instrument was completed by the parents of patients who have undergone triangle tilt surgery (Group 1: N=63) or those who were considered candidates for this procedure (Group 2: N=67). The results were compared between the two patient groups and analyzed using the unpaired student’s t-test. Later, 23 patients from the group 2, underwent triangle tilt surgery (Group 3). We collected post-op data, compared and analyzed the outcome of the surgery in these patients to their own pre-op PODCI scores, using the paired student’s t test. Results: In patients who have undergone triangle tilt surgery, significantly higher PODCI scores were observed in the parameters of upper extremity function (p<0.05), sports/physical function (p<0.05), basic mobility (p<0.0001) and global functioning (p<0.05), when compared to patients who have not undergone triangle tilt surgery. Further, PODCI scores in group 3 patients were significantly higher after surgery in the parameters of upper extremity function (p <0.03), Pain/Comfort (p <0.05), basic mobility (p<0.0002) and global functioning (p<0.03), when compared to before triangle tilt surgery. Conclusion: The results of the Pediatric Outcomes Data Collection Instrument demonstrate the functional benefits of triangle tilt surgery in patients with obstetric brachial plexus injury.

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Jin, Zi Min, Qiao Hua Shen, Ming Shan Fan, and Jian Wei Tao. "Research on Thermal and Moisture Comfort of Seamless Knitted Fabric Made of Triangle-Hollow Nylon." Applied Mechanics and Materials 66-68 (July 2011): 1311–14. http://dx.doi.org/10.4028/www.scientific.net/amm.66-68.1311.

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To research thermal and moisture comfort of seamless knitted fabric made of triangle-hollow nylon which is developed newly, the paper chooses triangle-hollow nylon, circle-hollow nylon and ordinary nylon as fiber material and every nylon adopts weft plain, one-and-one mock rib and one-and-three mock rib for test weaving. Then nine samples are obtained. The paper analyses their air permeability, moisture permeability and warmth retention property. Result indicates that air permeability and moisture permeability of seamless knitted fabric made of triangle-hollow nylon are better than that of two other kinds of nylon’s seamless knitted fabric.

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KIM, Incheol, Ingeol LEE, and Sungho KANG. "Built-In Self-Test for Static ADC Testing with a Triangle-Wave." IEICE Transactions on Electronics E96.C, no. 2 (2013): 292–94. http://dx.doi.org/10.1587/transele.e96.c.292.

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Barni, Mauro, Hector Santoyo-Garcia, and Benedetta Tondi. "An Improved Statistic for the Pooled Triangle Test Against PRNU-Copy Attack." IEEE Signal Processing Letters 25, no. 10 (October 2018): 1435–39. http://dx.doi.org/10.1109/lsp.2018.2863045.

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Dijksterhuis, Garmt. "On Triangle Tests and Latin Squares: a Method of Producing Test Plans." LWT - Food Science and Technology 29, no. 1-2 (January 1996): 146–50. http://dx.doi.org/10.1006/fstl.1996.0020.

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Cao, Yong, Xinchi Tang, and Sijie Shao. "VI Curve Test Based On Discrete Excitation Signals." MATEC Web of Conferences 232 (2018): 04013. http://dx.doi.org/10.1051/matecconf/201823204013.

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In-Circuit Test System is an instrument that uses the VI curve test to diagnose circuit faults. Generally, continuous signals such as sine wave, triangle wave and square wave are used as the VI curve test excitation source. There are some problems in the synchronization of the analysis. In this paper, we study a VI curve test based on discrete excitation signal, analyze the problems arising from continuous signal testing, and propose a continuous signal discretization circuit scheme. The feasibility and practicability of this method are proved by Matlab simulation and experiment.

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Journal articles on the topic 'Triangle test'

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