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Journal articles on the topic 'Projectors'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Teubl, Fernando, Marcio Cabral, Marcelo Zuffo, and Celso Kurashima. "Analysis of a Scalable Multi-Projector System for Virtual Reality Environments." International Journal of Virtual Reality 12, no. 1 (2013): 15–29. http://dx.doi.org/10.20870/ijvr.2013.12.1.2855.

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Virtual reality environments with multi-projector systems provide better visual quality, higher resolution and more brightness than traditional single-projector systems. Moreover, using multiple low-cost projectors is economically advantageous in comparison to an expensive high-end projector for equivalent visual performance. This article presents the research and development of a scalable multiprojection system that enables the construction of virtual reality systems with a large number of projectors and graphics computers, and that is capable of achieving a high resolution display. We demons

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2

Wu, Lifang, Lidong Zhao, Meng Jian, Yuxin Mao, Miao Yu, and Xiaohua Guo. "EHMP-DLP: multi-projector DLP with energy homogenization for large-size 3D printing." Rapid Prototyping Journal 24, no. 9 (2018): 1500–1510. http://dx.doi.org/10.1108/rpj-04-2017-0060.

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Purpose In some three-dimensional (3D) printing application scenarios, e.g., model manufacture, it is necessary to print large-sized objects. However, it is impossible to implement large-size 3D printing using a single projector in digital light processing (DLP)-based mask projection 3D printing because of the limitations of the digital micromirror device chips. Design/methodology/approach A multi-projector DLP with energy homogenization (EHMP-DLP) scheme is proposed for large-size 3D printing. First, a large-area printing plane is established by tiling multiple projectors. Second, the project

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3

Shekhtman, Boris, Lesław Skrzypek, and Brian Tuesink. "On Primary Decomposition of Hermite Projectors." Symmetry 15, no. 9 (2023): 1658. http://dx.doi.org/10.3390/sym15091658.

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An ideal projector on the space of polynomials C[x]=C[x1,…,xd] is a projector whose kernel is an ideal in C[x]. Every ideal projector P can be written as a sum of ideal projectors P(k) such that the intersection of their kernels kerP(k) is a primary decomposition of the ideal kerP. In this paper, we show that P is a limit of Lagrange projectors if and only if each P(k) is. As an application, we construct an ideal projector P whose kernel is a symmetric ideal, yet P is not a limit of Lagrange projectors.

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Gao, Qiangsheng, Ka Ho Cheng, Anran Li, and Yibo Liu. "P‐18.2: Relative Localization for Real‐time Adaptive Quadruped Mobile Projector System." SID Symposium Digest of Technical Papers 55, S1 (2024): 1557–59. http://dx.doi.org/10.1002/sdtp.17425.

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The technology of home projectors has matured significantly. However, most projectors are limited to static manual projectors, and projectors capable of automatic focusing and keystone correction are expensive. Furthermore, there is still room for development in the adaptability and real‐time performance of the screen distance and spatial angle measurement systems that projectors use for automatic focusing and keystone correction. Compared with the existing laser focusing technology, in this research, we present an alternative solution to acquire real‐time screen distance and spatial angle est

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Vetoshkin, A. M., and A. A. Shum. "Strictly oblique projectors and their properties." FORESTRY BULLETIN 24, no. 5 (2020): 122–27. http://dx.doi.org/10.18698/2542-1468-2020-5-122-127.

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In this paper, strictly oblique projectors are defined as projectors that cannot be represented as the sum of two projectors, one of which is a nonzero orthoprojector. A theorem is proved that each projector can be represented in a unique way as the sum of a strictly oblique projector and an orthoprojector. The properties of such projectors are given. For example: if the projector is strictly oblique, then its Hermitian adjoint is also strictly oblique; the rank of a strictly oblique projector is at most n/2, where n is the order of the projector matrix; the property of the projector to be str

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Pitiakov, Oleksandr, Pavel Neyezhmakov, Svitlana Shpak, Svitlana Kyslytsia, and Gregory Kozhushko. "Investigation of photobiological safety of blue light of LED image projector of household use." Ukrainian Metrological Journal, no. 3 (October 5, 2021): 50–57. http://dx.doi.org/10.24027/2306-7039.3.2021.241285.

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Abstract Light emitted in the wavelength range of 400–500 nm causes a very significant photochemical effect on the retina. At certain doses of blue light energy can cause damage to the retina, so the study of the safety of blue light projectors used in domestic conditions is an urgent task. The aim of this work is to study the photobiological safety of light image projectors with light emitting diodes. The paper analyzes the requirements for photobiological safety of tube systems and methods for assessing the danger of blue light of projectors that use LED light sources. The information

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Gumilar, Yogi, Fitria Budi Utami, Maya Lestari, and Fahmy Ulfah Mawaddah. "EFEKTIVITAS PENGGUNAAN PROYEKTOR DALAM PENGAJARAN BAHASA INGGRIS PADA PENDIDIKAN ANAK USIA DINI." JURNAL TALITAKUM 3, no. 2 (2024): 70–81. https://doi.org/10.69929/10.69929/talitakum.v3i2.2.

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This study investigates the effectiveness of using projectors for teaching English in early childhood education, focusing on teachers' perceptions, the impact on student attention and understanding, and the challenges encountered. Technological advancements, particularly the use of projectors, have been shown to enhance educational experiences by making lessons more engaging and interactive. This research employed a qualitative descriptive method, interviewing 12 kindergarten teachers in Tangerang to gather insights on their experiences with projectors. Findings indicate that teachers generall

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8

Herbut, Fedor. "Latent Complete-Lattice Structure of Hilbert-Space Projectors." Quanta 8, no. 1 (2019): 1. http://dx.doi.org/10.12743/quanta.v8i1.85.

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To uncover the hidden complete-lattice structure of Hilbert-space projectors, which is not seen by the operator operations and relations (algebraically), resort is taken to the ranges of projectors (to subspaces—to geometry). Taking the range of a projector is completed into a bijection of all projectors onto all subspaces of any finite or countably infinite dimensional Hilbert space. As a second step, this basic bijection is upgraded into an isomorphism of partially ordered sets utilizing the sub-projector relation on the one hand, and the subspace relation on the other. As a third and final

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9

Bertrand, François, and Jean-Paul Calvi. "The Newton product of polynomial projectors Part 1: Construction and algebraic properties." International Journal of Mathematics 30, no. 06 (2019): 1950030. http://dx.doi.org/10.1142/s0129167x19500307.

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We propose a new way of combining two polynomial projectors on spaces of functions of few variables to obtain a polynomial projector on a space of functions of many variables. We present various algebraic properties of our construction and study the main approximation properties of the new projectors.

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10

Budijono, Santoso, and Robby Saleh. "Analysis of Various Computer System Monitoring and LCD Projector through the Network TCP/IP." ComTech: Computer, Mathematics and Engineering Applications 6, no. 3 (2015): 381. http://dx.doi.org/10.21512/comtech.v6i3.2231.

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Many electronic devices have a network connection facility. Projectors today have network facilities to bolster its customer satisfaction in everyday use. By using a device that can be controlled, the expected availability and reliability of the presentation system (computer and projector) can be maintained to keep itscondition ready to use for presentation. Nevertheless, there is still a projector device that has no network facilities so that the necessary additional equipment with expensive price. Besides, control equipment in large quantities has problems in timing and the number of technic

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Fang, Rong Jyue, Wen Jiuh Chiang, and Hua Lin Tsai. "Application in Education of Communication Systems of PHS Phone." Applied Mechanics and Materials 58-60 (June 2011): 875–83. http://dx.doi.org/10.4028/www.scientific.net/amm.58-60.875.

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This study intends to investigate PHS phone and its application in an elementary school. The interview process targeted on the projector who directed the plan of PHS phone from an experimental elementary school located in Kaohsiung County, southern Taiwan. She joined all of digital experimental project and observed interaction between the parents and their own children in that specific elementary school. In the experimental period, the projector observed each parents using a PHS phone through message transmission and mobile net communication, and the parents discussed and shared feelings with

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12

Adamczyk, Marcin. "Temperature Compensation Method for Raster Projectors Used in 3D Structured Light Scanners." Sensors 20, no. 20 (2020): 5778. http://dx.doi.org/10.3390/s20205778.

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Raster projectors are commonly used in many various measurement applications where active lighting is required, such as in three-dimensional structured light scanners. The effect of temperature on the raster projector, in some conditions, can lead to significant deterioration of the measurements performed with such a scanner. In this paper, the outcomes of several experiments concerning the effects of temperature on raster projectors are presented. The described research is focused on the thermal deformations of projected images caused by common thermal effects observed in projectors: those ca

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Tanaka, Kenta, Motoyasu Sano, Yumi Horimai, Hideyoshi Horimai, and Yusuke Aoki. "Geometric Correction Method Applying the Holographic Ray Direction Control Technology." Journal of Robotics and Mechatronics 33, no. 5 (2021): 1155–68. http://dx.doi.org/10.20965/jrm.2021.p1155.

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In recent years, there has been an increasing need for larger screens and higher definition displays, while projectors are becoming smaller and cheaper. Furthermore, an ultra-short-throw projector that can display on a large screen while significantly reducing the distance between the projector and screen is being developed. However, ultra-short-throw projectors are required to be precisely aligned with the screen, and if the screen is not flat, the projected image becomes distorted. Therefore, geometric correction projection technology is attracting attention for projection on curtains and th

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Komalasari, Rika, Sifa Nafsiah, and Tiara Nabillah Wondu. "Improving Social Studies Learning Outcomes by Using Picture and Projector Media." Jurnal Primagraha 3, no. 02 (2022): 64–72. http://dx.doi.org/10.59605/jp.v3i02.672.

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This research aims to determine the results of social studies learning using picture media and a projector for class V students at SDN Catang 1, Serang Regency, Banten. The subjects of this research were 30 class V students at SDN Catang 1. The data collection techniques used were observation and interviews. The data analysis technique was carried out using a quantitative model to find out how important image media and projectors are for teachers and students in improving social studies learning outcomes by using image media and projectors in the learning process. Based on the data from the re

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Jadiyar, Yash, Yash Gala, Vedant Jani, Kunal Kotekar, and Poonam Vengurlekar. "Mini Projector." International Journal for Research in Applied Science and Engineering Technology 10, no. 5 (2022): 2816–18. http://dx.doi.org/10.22214/ijraset.2022.42664.

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Abstract: A Projector has become an inseparable part of offices, schools and universities. One cannot imagine a presentation without the use of projector. Almost all presentation rooms have projectors installed. In this post we will discuss about what is Projector, how it works, its various types (CRT, LCD and DLP), applications, advantages and disadvantages. Keywords: Activity Recognition, Smartphone, contextual app.

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von Jungenfeld, Rocio. "Portable Projections: Analyzing Cocreated Site-Specific Video Walks." Leonardo 53, no. 5 (2020): 492–97. http://dx.doi.org/10.1162/leon_a_01794.

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The author discusses key findings of a series of video walks developed as part of her practice-based PhD research (2011–2014). Four video walks were produced for handheld projectors and tested in four different public spaces. The first video walks ( The Surface Inside, 2011; I-Walk, 2012) were guided, and only one handheld projector was available. The latter ( Walk-itch, 2013; (wh)ere land, 2014) were created for multiple handheld projectors, offering participants a cocreative role. Onsite observations revealed a shift in participant engagement between earlier and later video walks. A threefol

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MANLEY-COOPER, N. C. "Projectors." Medical Education 1, no. 3 (2009): 221–23. http://dx.doi.org/10.1111/j.1365-2923.1967.tb01701.x.

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Malkova, Natalia Yu, and Milena D. Petrova. "Safety assessment of laser projector radiation for the population." Hygiene and sanitation 101, no. 8 (2022): 850–54. http://dx.doi.org/10.47470/0016-9900-2022-101-8-850-854.

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Introduction. The target organs of laser radiation include the skin and the organ of vision. The danger of laser beams for the visual analyzer determined the main direction of research in this area, which focused on the study of the damaging effect of radiation on the organ of vision. The aim of the study is a hygienic assessment of laser radiation from projectors used in cultural events. Materials and methods. Measurements were carried out on 10 multi-color projectors with capacities from 2 to 30 watts belonging to 2 classes: Kvant and Spectrum and wavelengths of 445-460 nm, 520-532 nm, and 6

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VALTANCOLI, P. "PROJECTORS FOR THE FUZZY SPHERE." Modern Physics Letters A 16, no. 10 (2001): 639–45. http://dx.doi.org/10.1142/s0217732301003851.

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All fiber bundles with a given set of characteristic classes can be considered as particular projections of a more general bundle called a universal classifying space. This notion of projector valued field, a global definition of connections and gauge fields, may be useful in defining vector bundles for noncommutative base spaces. In this letter we derive the projector valued field for the fuzzy sphere, define noncommutative n-monopole configurations, and check that in the classical limit, using the machinery of noncommutative geometry, the corresponding topological charges (Chern class) are i

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Wang, An-Lan, Bin Shan, Wei Shi, et al. "ParGo: Bridging Vision-Language with Partial and Global Views." Proceedings of the AAAI Conference on Artificial Intelligence 39, no. 7 (2025): 7491–99. https://doi.org/10.1609/aaai.v39i7.32806.

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This work presents ParGo, a novel Partial-Global projector designed to connect the vision and language modalities for Multimodal Large Language Models (MLLMs). Unlike previous works that rely on global attention-based projectors, our ParGo bridges the representation gap between the separately pre-trained vision encoders and the LLMs by integrating global and partial views, which alleviates the overemphasis on prominent regions. To facilitate the effective training of ParGo, we collect a large-scale detail-captioned image-text dataset named ParGoCap-1M-PT, consisting of 1 million images paired

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Hong-jie, Guo, and Du Fu-zhou. "Real-time Projection Method for Augmented Reality Assisted Assembly." MATEC Web of Conferences 175 (2018): 02026. http://dx.doi.org/10.1051/matecconf/201817502026.

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Recently, the augmented reality technology has become a useful tool for assembly guidance. The projectors have been always used as virtual image output devices. In most situations, real-time and dynamic images projection is essential due to that the components to be assembled are randomly placed and movable. However, the cameras and the projectors are placed in different relative positions, making it difficult to project real time images when we are using augmented reality for assembly. A novel method based on the system of binocular cameras and projector was proposed here to overcome the limi

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Rizza, Muhammad Akhlis, Zakki Fuadi Emzain, Ratna Monasari, and Etik Puspitasari. "Peningkatan Kualitas Pembelajaran melalui Media Pembelajaran LCD Proyektor bagi Guru dan Siswa KB Bina Cendikia Desa Sidorejo Kecamatan Jabung Kabupaten Malang." Prima Abdika : Jurnal Pengabdian Masyarakat 2, no. 3 (2022): 254–61. http://dx.doi.org/10.37478/abdika.v2i3.2075.

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The use of technology continues to penetrate various aspects of life, one of which is the utilization of technology in the field of education at the Playgroup Level (KB). At KB Bina Cendikia in Jabung Subdistrict, Malang has not used technology for learning media such as LCD projectors; therefore, there is necessary to teach media by utilizing this technology to increase learning activities. This community service activity (PPM) aims to provide learning media in the form of an LCD projector and its equipment and to train KB Bina Cendikia teachers to operate and maintain it. The PPM activities

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Zuo, Kezheng, Yu Li, and Abdullah Alazemi. "Further characterizations of k-generalized projectors and k-hypergeneralized projectors." Filomat 37, no. 16 (2023): 5347–59. http://dx.doi.org/10.2298/fil2316347z.

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The paper focuses on the classes of the k-generalized and k-hypergeneralized projectors. Several original features of these classes are identified and new properties are characterized. We present some relations between k-generalized and k-hypergeneralized projectors that generalize appropriate relations between generalized and hypergeneralized projectors given in [Further properties of generalized and hypergeneralized projectors, Linear Algebra and its Applications, 389 (2004) 295-303] and [Further results on generalized and hypergeneralized projectors, Linear Algebra and its Applications, 429

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Schedel, Margaret. "Blending physical and cyber infrastructures to enable seamless telematic and in-person presentations." Journal of the Acoustical Society of America 156, no. 4_Supplement (2024): A38. https://doi.org/10.1121/10.0035022.

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Connecting laptops to projectors and PAs during conferences often frustrates presenters and organizers, especially for hybrid events. Issues such as incorrect input sources, loose connections, resolution mismatches, incompatible adapters, damaged cables, outdated drivers, projector settings, HDCP incompatibility, projectors hijacking audio, and operating system discrepancies can arise. These problems are worsened by tight schedules, with back-to-back presentations involving different personal computers with unique issues. Some conferences use an on-site computer to mitigate these issues, but t

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Imanuela, Putri, and Deni Setiawan. "Qualitative Study on the Implementation of Visual Projector Media in Students' Learning Motivation." JTP - Jurnal Teknologi Pendidikan 27, no. 1 (2025): 219–29. https://doi.org/10.21009/jtp.v27i1.53828.

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This study aims to analyze the implementation of LCD projector media in learning and its effect on the learning motivation of fourth grade students of Wonolopo 03 State Elementary School. The research method used is a qualitative approach with a field study design (field research). Data collection was conducted through in-depth interviews with teachers and students and direct observation in learning activities by studying the interaction patterns of students and teachers to understand the impact of using LCD projectors on student engagement and understanding. The results showed that the use of

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Lomer, Richard. "Using projectors." 5 to 7 Educator 2006, no. 22 (2006): 22–23. http://dx.doi.org/10.12968/ftse.2006.5.10.22134.

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Odesskii, Alexander. "K-projectors." Journal of Algebra 511 (October 2018): 1–15. http://dx.doi.org/10.1016/j.jalgebra.2018.06.011.

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Fawson, Curtis E. "LCD projectors." TechTrends 35, no. 5 (1990): 19–24. http://dx.doi.org/10.1007/bf02830788.

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Rusk, Michael D. "Video Projectors." Community & Junior College Libraries 9, no. 3 (2000): 55–59. http://dx.doi.org/10.1300/j107v09n03_08.

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Dachselt, Raimund, Jonna Häkkilä, Matt Jones, Markus Löchtefeld, Michael Rohs, and Enrico Rukzio. "Pico projectors." Interactions 19, no. 2 (2012): 24–29. http://dx.doi.org/10.1145/2090150.2090158.

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Feingold, Mordechai. "Projectors and learned projects in early modern England." Seventeenth Century 32, no. 1 (2016): 63–79. http://dx.doi.org/10.1080/0268117x.2016.1249935.

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Nuraini, Rini. "Decision Support System for Projector Selection Using the Weighted Aggregated Sum Product Assessment Method." CSRID (Computer Science Research and Its Development Journal) 14, no. 3 (2022): 228–41. https://doi.org/10.22303/csrid.14.3.2022.228-241.

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A projector is a device that can project the display from a computer or laptop onto a screen to make it look bigger. Projectors have many benefits including as a presentation tool, as an information medium, entertainment media and so on. How important the function of the projector is that there are many brands or brands of projectors that offer various capabilities and specifications. This becomes a problem because someone sometimes does not have knowledge of the projector specifications that suit their needs. The main objective of this research is to develop a decision support system for sele

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Blissing, Björn, Fredrik Bruzelius, and Olle Eriksson. "The Effects on Driving Behavior When Using a Head-mounted Display in a Dynamic Driving Simulator." ACM Transactions on Applied Perception 19, no. 1 (2022): 1–18. http://dx.doi.org/10.1145/3483793.

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Driving simulators are established tools used during automotive development and research. Most simulators use either monitors or projectors as their primary display system. However, the emergence of a new generation of head-mounted displays has triggered interest in using these as the primary display type. The general benefits and drawbacks of head-mounted displays are well researched, but their effect on driving behavior in a simulator has not been sufficiently quantified. This article presents a study of driving behavior differences between projector-based graphics and head-mounted display i

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Garron, Nicolas. "Fierz transformations and renormalization schemes for fourquark operators." EPJ Web of Conferences 175 (2018): 10005. http://dx.doi.org/10.1051/epjconf/201817510005.

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It has been shown that the choice of renormalization scheme is crucial for four-quark operators, in particular for neutral kaon mixing beyond the Standard Model. In the context of SMOM schemes, the choice of projector is not unique and is part of the definition of the renormalisation scheme. I present the non-diagonal Fierz relations which relate some of these projectors.

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Li, Zhe, Shugong Zhang, and Tian Dong. "The Discretization for a Special Class of Ideal Projectors." ISRN Applied Mathematics 2012 (June 11, 2012): 1–15. http://dx.doi.org/10.5402/2012/359069.

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We focus on a special class of ideal projectors, subspaces, which possesses two classes of D-invariant polynomial subspaces. The first is a classical type, while the second is a new class. With matrix computation, we discretize this class of ideal projectors into a sequence of Lagrange projectors.

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DENG, HUI, BO-YU HOU, KANG-JIE SHI, ZHAN-YING YANG, RUI-HONG YUE, and LIU ZHAO. "THE MANIFESTLY COVARIANT SOLITON SOLUTIONS ON NONCOMMUTATIVE ORBIFOLDS T2/Z6 AND T2/Z3." Reviews in Mathematical Physics 18, no. 03 (2006): 255–83. http://dx.doi.org/10.1142/s0129055x06002644.

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In this paper, we construct a closed form of projectors on the integral noncommutative orbifold T2/Z6 in terms of elliptic functions by GHS (Gopakumar, Headrick and Spradlin) construction. Thereafter, we give a general solution of projectors on T2/Z6 and T2/Z3 with minimal trace and continuous reduced matrix M(k,q0). The projectors constructed by us possess symmetry and manifestly covariant forms under Z6 rotation. Since projectors correspond to the soliton solutions of field theory on the noncommutative orbifold, we thus present a series of corresponding manifestly covariant soliton solutions

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Zhao, Tianyue, Chao Yu, Xianzhen Li, et al. "P‐9.16: 4K LCD projection display drive system." SID Symposium Digest of Technical Papers 55, S1 (2024): 1212–15. http://dx.doi.org/10.1002/sdtp.17324.

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In recent years, the rapid development of the domestic projection industry, the projector industry will usher in more development opportunities, 4K LCD projection technology has formed the LCD projection full link self‐research design and manufacturing capabilities, It includes the industry's first 4K LCD optical machine, LCD projection display panel, self‐designed display motherboard and reliable ODM machine manufacturing capabilities, giving 4K LCD projectors a richer built‐in ultra HD keystone correction technology, the solution uses external hard decoding dedicated processor, ultra‐low lat

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BALACHANDRAN, A. P., and S. M. ROY. "CONTINUOUS TIME-DEPENDENT MEASUREMENTS: QUANTUM ANTI-ZENO PARADOX WITH APPLICATIONS." International Journal of Modern Physics A 17, no. 28 (2002): 4007–23. http://dx.doi.org/10.1142/s0217751x0201056x.

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We derive differential equations for the modified Feynman propagator and for the density operator describing time-dependent measurements or histories continuous in time. We obtain an exact series solution and discuss its applications. Suppose the system is initially in a state with density operator ρ(0) and the projection operator E(t) = U(t) EU†(t) is measured continuously from t = 0 to T, where E is a projector obeying Eρ(0)E = ρ(0) and U(t) a unitary operator obeying U(0) = 1 and some smoothness conditions in t. Then the probability of always finding E(t) = 1 from t = 0 to T is unity. Gener

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Sandberg, Kristian, and Gregory Beylkin. "Full-wave-equation depth extrapolation for migration." GEOPHYSICS 74, no. 6 (2009): WCA121—WCA128. http://dx.doi.org/10.1190/1.3202535.

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Most of the traditional approaches to migration by downward extrapolation suffer from inaccuracies caused by using one-way propagation, both in the construction of such propagators in a variable background and the suppression of propagating waves generated by, e.g., steep reflectors. We present a new mathematical formulation and an algorithm for downward extrapolation that suppress only the evanescent waves. We show that evanescent wave modes are associated with the positive eigenvalues of the spatial operator and introduce spectral projectors to remove these modes, leaving all propagating mod

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Sophie, Manikuzwe, and Mugiraneza Faustin. "Inclusion of Technological Tools in Teaching and Students’ Learning Outcomes in Public Secondary in Rwanda: A Case of Gisagara District, Rwanda." International Journal of Management and Development Studies 13, no. 5 (2024): 17–33. http://dx.doi.org/10.53983/ijmds.v13n5.002.

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This study aimed to investigate the impact of incorporating technological tools in teaching on students' learning outcomes in public secondary schools in Rwanda. Specifically, it focused on three objectives: identifying the technological tools used in teaching in public secondary schools in Gisagara District, Rwanda; examining the learning outcomes required in these schools; and evaluating the relationship between the use of technological tools in teaching and students' learning outcomes. The study was based on Constructivism and Socio-Cultural theories and employed a descriptive design to col

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Bauschke, Heinz H., Caifang Wang, Xianfu Wang, and Jia Xu. "On Subgradient Projectors." SIAM Journal on Optimization 25, no. 2 (2015): 1064–82. http://dx.doi.org/10.1137/14096267x.

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Ohkahara, Makoto, and Shoji Yamamoto. "Lamps for Projectors." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 87, no. 1 (2003): 37–41. http://dx.doi.org/10.2150/jieij1980.87.1_37.

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Swarztrauber, Paul N., and William F. Spotz. "Spherical harmonic projectors." Mathematics of Computation 73, no. 246 (2003): 753–61. http://dx.doi.org/10.1090/s0025-5718-03-01597-7.

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Gaiotto, Davide, Leonardo Rastelli, Ashoke Sen, and Barton Zwiebach. "Star Algebra Projectors." Journal of High Energy Physics 2002, no. 04 (2002): 060. http://dx.doi.org/10.1088/1126-6708/2002/04/060.

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Puntanen, Simo, and George P. H. Styan. "Orthogonal Projectors—Solution." Econometric Theory 13, no. 5 (1997): 764–65. http://dx.doi.org/10.1017/s0266466600006228.

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Takane, Yoshio, and Haruo Yanai. "On oblique projectors." Linear Algebra and its Applications 289, no. 1-3 (1999): 297–310. http://dx.doi.org/10.1016/s0024-3795(98)10180-5.

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Baksalary, Jerzy K., and Oskar Maria Baksalary. "Commutativity of projectors." Linear Algebra and its Applications 341, no. 1-3 (2002): 129–42. http://dx.doi.org/10.1016/s0024-3795(01)00350-0.

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Boegner, Ray F. "Motion-Picture Projectors." Scientific American 279, no. 4 (1998): 134–35. http://dx.doi.org/10.1038/scientificamerican1098-134.

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Conley, Charles H., and Mark R. Sepanski. "Relative extremal projectors." Advances in Mathematics 174, no. 2 (2003): 155–66. http://dx.doi.org/10.1016/s0001-8708(02)00031-2.

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Graham-Rowe, Duncan. "Projectors get personal." Nature Photonics 1, no. 12 (2007): 677–79. http://dx.doi.org/10.1038/nphoton.2007.236.

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