Academic literature on the topic 'MEMS compass'

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Journal articles on the topic "MEMS compass"

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Li, Xi Sheng, Yan Xia Liu, Xiong Ying Shu, and Rui Qing Kang. "MEMS Gyro Aided Calibration of Electronic Compass." Advanced Materials Research 443-444 (January 2012): 144–49. http://dx.doi.org/10.4028/www.scientific.net/amr.443-444.144.

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In this paper, an MEMS gyro aided on line calibration algorithm for electronic compass is presented. This electronic compass module consists of a three-axis AMR sensor, a two-axis MEMS tilt sensor and a one-axis MEMS gyro. The automatic calibration method requires to rotate the electronic compass two full 360-degree revolution. In this rotation procedure, magnetic field data, attitude data and angular rate data are recorded. Based on recorded magnetic field data and attitude data, raw heading data is calculated. This raw heading data is verified by angular rate output of MEMS gyro. Results of
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Cho, Seong Yun, and Chan Gook Park. "MEMS Based Pedestrian Navigation System." Journal of Navigation 59, no. 1 (2005): 135–53. http://dx.doi.org/10.1017/s0373463305003486.

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In this paper we present a micro-electrical mechanical system (MEMS) based pedestrian navigation system (PNS) for seamless positioning. The sub-algorithms for the PNS are developed and the positioning performance is enhanced using the modified receding horizon Kalman finite impulse response filter (MRHKF). The PNS consists of a biaxial accelerometer and a biaxial magnetic compass mounted on a shoe. The PNS detects a step using a novel technique during the stance phase and simultaneously calculates walking information. Step length is estimated using a neural network whose inputs are the walking
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Feng, Yi Bo, Xi Sheng Li, and Xiao Juan Zhang. "Research on a Combined Directional Instrument of DMC and Gyro for Vehicles." Advanced Materials Research 490-495 (March 2012): 2510–14. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.2510.

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In the view of the disadvantages brought by DMC(digital magnetic compass) and gyro when they are used separately, a combined directional instrument composed by a 3-axes digital magnetic compass and a 3-axes MEMS gyro for vehicles is introduced, which is less influenced to the magnetic field interference and random drift. In the abnormal magnetic field, the MEMS gyro is used for correcting the heading angle of DMC. The experiment data shows that this instrument can output a stable and high-precision heading angle. It can be used to provide heading angle for vehicles.
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Holovatyy, A., V. Teslyuk, K. Kolesnyk, and V. Tabala. "Development of Digital Compass Based on AVR Microcontroller and MEMS Accelerometer- Magnetometer Module LSM303DLHC." Computer Design Systems. Theory and Practice, no. 1 (2020): 12–26. http://dx.doi.org/10.23939/cds2019.01.012.

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In the paper, the digital compass based on AVR microcontroller has been developed using MEMS accelerometer-magnetometer LSM303DLHC. The structure and hardware of the digital compass have been developed. The calibration algorithms of the accelerometer and magnetometer of the LSM303DLHC module have been described. The calculation algorithm of the pitch and roll angles has been described. The heading calculation algorithm of the digital compass without tilt compensation and with tilt compensation has been described. The operation algorithm and embedded software of the digital compass have been de
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Zheng, Xin, Xing Song Wang, and Yu Liang Mao. "Research of Intelligent Mower Based on High Accuracy 3D Electronic Compass." Applied Mechanics and Materials 532 (February 2014): 22–25. http://dx.doi.org/10.4028/www.scientific.net/amm.532.22.

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This paper introduces an intelligent mower with directional navigation features. This kind of mower uses electronic compass made by MEMS magnetoresistive sensor and three-axis acceleration sensor with high precision tilt compensation function. This paper also describes the advantages and applications of this kind of mower, as well as electronic compass measurement principle, system design and software algorithms, and electronic compass error analysis and elimination. This cost-effective system can be normally used in the field of intelligent mowers.
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Choi, S., S. H. Kim, Y. K. Yoon, and M. G. Allen. "A Magnetically Excited and Sensed MEMS-Based Resonant Compass." IEEE Transactions on Magnetics 42, no. 10 (2006): 3506–8. http://dx.doi.org/10.1109/tmag.2006.879449.

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Zhao, Huijun, Chong Shen, Huiliang Cao, et al. "Seamless Micro-Electro-Mechanical System-Inertial Navigation System/Polarization Compass Navigation Method with Data and Model Dual-Driven Approach." Micromachines 15, no. 2 (2024): 237. http://dx.doi.org/10.3390/mi15020237.

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The integration of micro-electro-mechanical system–inertial navigation systems (MEMS-INSs) with other autonomous navigation sensors, such as polarization compasses (PCs) and geomagnetic compasses, has been widely used to improve the navigation accuracy and reliability of vehicles in Internet of Things (IoT) applications. However, a MEMS-INS/PC integrated navigation system suffers from cumulative errors and time-varying measurement noise covariance in unknown, complex occlusion, and dynamic environments. To overcome these problems and improve the integrated navigation system’s performance, a du
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Saint-Patrice, D., J. L. Pornin, B. Savornin, et al. "Thin Film Packaging for Vacuum MEMS Encapsulation: A Study on Outgassing Phenomenon." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2012, DPC (2012): 002428–82. http://dx.doi.org/10.4071/2012dpc-tha31.

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Most of the time, MEMS devices require hermetic encapsulation for protection against atmosphere, moisture, particles and standard back-end manufacturing technologies. In the last few years, Wafer Level Packaging (WLP) is moving toward developments on Thin Film Packaging (TFP) in order to save footprint, to reduce chip thickness and packaging costs. In the specific case of high-vacuum MEMS encapsulation (gyro, compass), long term pressure stability is required. As the final performances of these kinds of devices are strongly dependent on the working pressure, using TFP for MEMS encapsulation wi
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Shailendra Kumar Rawat, Et al. "Underground Attitude MEMS-Based Sensor Technology for Precise Estimation in Mines." International Journal on Recent and Innovation Trends in Computing and Communication 11, no. 9 (2023): 4024–32. http://dx.doi.org/10.17762/ijritcc.v11i9.9763.

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In coal mines, precise attitude measurement systems are crucial for enhancing reliability and accuracy. These systems typically integrate multiple sensors to overcome various limitations, such as distance constraints, distractions, and not clear vision. Gyroscopes are employed to tackle these challenges; however, they are very highly critical to slight erosion, which can affect their performance in maximum time. On the other hand, accelerometers do not experience drift but have slower dynamics, posing a between accuracy and response. This study investigates the implementation of a Complemtry f
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Cui, Xiao, Yong Yuan Qin, Qi Zhou, and Qiang Wen Fu. "Shoe-Mounted Personal Navigation System Based on MEMS." Advanced Materials Research 580 (October 2012): 423–27. http://dx.doi.org/10.4028/www.scientific.net/amr.580.423.

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Shoe-mounted personal navigation system(PNS) based on MEMS is presented aiming at locating a person. Large error remains a problem in a standalone navigation system that uses only low cost MEMS IMU. This paper therefore proposes a approach which integrated with ZUPT and compass heading information in Kalman-based framework. The filter propagates and estimates the errors during the stance phase, which are fed back to the INS for compensating the accumulated error during walking. Finally, the performance of the proposed algorithm are verified by outdoors actual walking experiments of closed-loop
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Dissertations / Theses on the topic "MEMS compass"

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Ozgeneci, Ercin Mehmet. "Mems Sensor Based Underwater Ahrs(attitude And Heading Reference System) Aided By Compass And Pressure Sensor." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614619/index.pdf.

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Attitude and Heading angles are crucial parameters for navigation. Conventional navigation methods mostly uses IMU and GPS devices to calculate these angles. MEMS technology offers small sized, low cost IMU sensors with moderate performance. However, GPS cannot be used in underwater. Therefore, different aiding sensors are used in underwater vehicles in order to increase the accuracy. As the accuracy of devices increases, the cost of these devices also increases. In this thesis, rather than using GPS and high quality IMU sensors, low cost MEMS IMU sensor is used together with a magnetometer an
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Choi, Seungkeun. "A micromachined magnetic field sensor for low power electronic compass applications." Diss., Available online, Georgia Institute of Technology, 2007, 2007. http://etd.gatech.edu/theses/available/etd-04092007-105302/.

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Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2007.<br>Allen, Mark, Committee Chair ; Brand, Oliver, Committee Member ; Kenney, James, Committee Member ; Hesketh, Peter, Committee Member ; Michaels, Jennifer, Committee Member.
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Ahmad, Faisal Saeed. "Design, test, and characterization of a compact MEMS-based frequency synthesizer." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=96673.

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Extensive microelectronics research has been conducted over the past decade to develop integrated replacements for high quality factor off-chip components. Micro-electromechanical systems (MEMS) based technology offers great promise as a result of improved reliability, microscale size, integration potential and eventually lower overall cost. In this work, the design, optimization, characterization, and test of a MEMS-based fully integrated frequency synthesizer serves to demonstrate a proof-of-concept for using MEMS clamped-clamped beam resonators in front-end RF systems. Details regarding sys
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Utermöhlen, Fabian [Verfasser]. "Modeling of MEMS Microbolometers : A Physics-Based Scalable Compact Model / Fabian Utermöhlen." Aachen : Shaker, 2015. http://d-nb.info/1070151580/34.

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Bouyge, David. "Systèmes lasers impulsionnels compacts et dispositifs hyperfréquences accordables basés sur l'intégration de composants MEMS." Limoges, 2007. https://aurore.unilim.fr/theses/nxfile/default/ac1d8e2a-01a5-4522-a2a7-f571790878dc/blobholder:0/2007LIMO4054.pdf.

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Malgré le grand intérêt suscité par l’intégration de composants opto-électro-mécaniques (MOEMS) dans des systèmes optiques peu d’expérimentations concernant leur capacité à produire des impulsions optiques brèves sont développées. C’est donc dans cette direction que nous avons orienté nos travaux. Ce manuscrit dresse tout d’abord l’état de l’art sur les composants MOEMS puis présente les divers modes de fonctionnement des systèmes lasers impulsionnels. Le développement des MOEMS est exposé à travers les étapes de conception, d’optimisation du procédé de fabrication et de caractérisation. Nous
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Gould, Parker Andrew, and Mitchell David Hsing. "Design, fabrication, and characterization of a compact deep reactive ion etching system for MEMS processing." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/93835.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 123-126).<br>A general rule of thumb for new semiconductor fabrication facilities (Fabs) is that revenues from the first year of production must match the capital cost of building the fab itself. With modem Fabs routinely exceeding $1 billion to build, this rule serves as a significant barrier to entry for groups seeking to commercialize new semiconductor devices aimed at smaller market segme
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Abdellatif, Sonia. "Développement et optimization des performances d’un accéléromètre convective triaxial CMOS micro-usiné." Electronic Thesis or Diss., Université de Montpellier (2022-....), 2022. http://www.theses.fr/2022UMONS035.

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Cette thèse porte sur l'amélioration des performances d’un microaccéléromètre convectif triaxial en termes de sensibilité, en particulier hors-plan, et d'efficacité, (i.e., rapport entre la sensibilité et l’énergie). Dans ce but, deux solutions sont étudiées par analyse numérique en utilisant un modèle FEM validé. La solution qui répond aux restrictions de la technologie CMOS 0,35µm et le post-traitement FSBM est choisie pour concevoir et fabriquer un nouvel accéléromètre convectif à 3 axes. Des simulations numériques sont utilisées pour démontrer la supériorité des performances du nouvel accé
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Mels, Johannes Jacobus. "Designing a balanced scorecard (BSC) for a mining supply company / J.J. Mels." Thesis, North-West University, 2010. http://hdl.handle.net/10394/4428.

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The purpose of this research was to formulate and develop broad guidelines for a Balanced Scorecard (BSC) for a mining supply company. This research has specific reference to Bond Equipment (Pty) Ltd. based in Klerksdorp, North West Province, South Africa. These guidelines must assist management to steer the company forward on a strategic way. The guidelines will also guide management to apply the BSC to lower levels in the company, each department and every employee will have its own BSC. This research also includes the improvement of the company`s vision and mission. The BSC must be aligned
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Dantas, Victor Vitoriano. "Origami: mem?rias de um processo composicional assistido por solu??es computacionais." Universidade Federal do Rio Grande do Norte, 2015. http://repositorio.ufrn.br/handle/123456789/20354.

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Chung, David. "Development of system level integration of compact RF components on multilayer liquid crystal polymer (LCP)." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42763.

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A system packaging level approach on liquid crystal polymer (LCP) was proposed for low cost, lightweight, and compact wireless communication systems. Via technology was explored for V-band W-band transitions and an active cooling system that are essential for compact multilayer integration. RF MEMS switches were fabricated and integrated at the component level to enable multi-functional devices with optimal performance. A pattern reconfigurable antenna for MIMO applications and 3D phase shifters for phased array antennas that use RF MEMS switches were presented. In addition, a lightweight expa
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Books on the topic "MEMS compass"

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Allison, Grey, and Tony Deis. Trackers Presents: Captain Nick and the Explorer Society--Compass of Mems. Dark Horse Comics, 2023.

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Company Law Memo. 4th ed. F L Memo Ltd, 2006.

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Bechtold, Tamara, Evgenii B. Rudnyi, and Jan G. Korvink. Fast Simulation of Electro-Thermal MEMS: Efficient Dynamic Compact Models (Microtechnology and MEMS). Springer, 2006.

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Fast Simulation of Electro-Thermal MEMS: Efficient Dynamic Compact Models (Microtechnology and MEMS). Springer, 2006.

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Memo, FL. Company Law Memo 2008. F L Memo Ltd, 2008.

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Indicator - FL Memo Limited. Memo company law 2015 (FL.MEMEN.ANNUEL). Indicator - FL Memo Limited, 2015.

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Bechtold, Tamara, Evgenii B. Rudnyi, and Jan G. Korvink. Fast Simulation of Electro-Thermal MEMS: Efficient Dynamic Compact Models. Springer, 2010.

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Mckague, Anne. You Don't Change a Company by Memo. Key Porter Books, 2005.

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Monaghan, Nicola. 4. Strict, vicarious, and corporate liability. Oxford University Press, 2018. http://dx.doi.org/10.1093/he/9780198811824.003.0004.

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Without assuming prior legal knowledge, books in the Directions series introduce and guide readers through key points of law and legal debate. Questions, diagrams, and exercises help readers to engage fully with each subject and check their understanding as they progress. This chapter discusses the three special forms of criminal liability: strict liability (including absolute liability), vicarious liability, and corporate liability. A strict liability offence is an offence which does not require proof of at least one mens rea element. An absolute liability offence does not require proof of an
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Lessons from Private Equity Any Company Can Use (Memo to the CEO). Harvard Business School Press, 2008.

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Book chapters on the topic "MEMS compass"

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Iannacci, Jacopo. "Compact Modeling of RF-MEMS Devices." In Advanced Micro and Nanosystems. Wiley-VCH Verlag GmbH & Co. KGaA, 2013. http://dx.doi.org/10.1002/9783527647132.ch8.

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Bruschi, P., F. Butti, and M. Piotto. "Compact Low Noise Interfaces for Multichannel MEMS Thermal Sensors." In Lecture Notes in Electrical Engineering. Springer US, 2011. http://dx.doi.org/10.1007/978-1-4614-0935-9_51.

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Deng, Wanling, Jielin Fang, Xixiong Wei, and Fei Yu. "Metal Oxide Semiconductor Thin-Film Transistors: Device Physics and Compact Modeling." In Outlook and Challenges of Nano Devices, Sensors, and MEMS. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-50824-5_3.

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Orenstein, Yaron, and Bonnie Berger. "Efficient Design of Compact Unstructured RNA Libraries Covering All k-mers." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-48221-6_23.

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El Zant, Chawki, Quentin Charrier, Khaled Benfriha, and Patrick Le Men. "Enhanced Manufacturing Execution System “MES” Through a Smart Vision System." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-70566-4_52.

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AbstractThe level of industrial performance is a vital issue for any company wishing to develop and acquire more market share. This article presents a novel approach to integrate intelligent visual inspection into “MES” control systems in order to gain performance. The idea is to adapt an intelligent image processing system via in-situ cameras to monitor the production system. The images are thus analyzed in real time via machine learning interpreting the visualized scene and interacting with some features of the MES system, such as maintenance, quality control, security, operations, etc. This
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Tagliapietra, Girolamo, and Jacopo Iannacci. "A Modular and Compact RF-MEMS Step Attenuator for Beamforming Applications in the Evolving 5G/6G Scenario." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-4495-8_31.

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Loo, Xi Sung, Wang Ling Goh, and Yuan Gao. "A 0.4 V 21.6 nW Duty Cycle Generator Based on Compact Pulsed Modulator for MEMs Sensing Interface." In Recent Advances in Communication Networks and Embedded Systems. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-59619-3_7.

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García Portilla, Jason. "Case Selection Criteria, Methods, and Data Treatment." In “Ye Shall Know Them by Their Fruits”. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-78498-0_17.

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AbstractThis chapter examines the criteria for selecting the cases analysed in this study. It explains the application of critical discourse analysis (CDA) as its principal empirical method. It discusses CDA methods and data treatment as well as the empirical analysis of CDA results. Finally, it compares and summarises the case selection criteria.Four countries were compared: Switzerland, Uruguay, Cuba, and Colombia. These cases are also linked to the correlated variables in the quantitative model and to the sufficient conditions in the QCA. Cases were selected based on the “extreme case metho
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Weis, Joëlle. "“Fait à mes heures de loisir”: Women’s Private Libraries as Spaces of Learning and Knowledge Production." In Women’s Private Practices of Knowledge Production in Early Modern Europe. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-44731-0_5.

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AbstractThe Duchesses Elisabeth Sophie Marie (1683–1767) and Philippine Charlotte of Brunswick- Wolfenbüttel (1716–1801) both owned substantial collections of several thousand books. Elisabeth’s library primarily contained theological literature, including 1200 Bibles and a unique collection of texts by Martin Luther, which she used to compose theological pamphlets. In addition, she granted access to her collection to selected scholars who, in turn, used the holdings for their research. Although more diversified, Philippine Charlotte’s library functioned as a similar meeting place for scholars
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Hayashi, S., and G. Fukuda. "The basic research for the new compass system using latest MEMS." In Marine Navigation and Safety of Sea Transportation. CRC Press, 2009. http://dx.doi.org/10.1201/9780203869345.ch40.

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Conference papers on the topic "MEMS compass"

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Fu, Yuan Hsing, Roberto Carminati, Huanhuan Wang, et al. "1D Line-scan Metalens Integrated with MEMS Actuator for Depth Sensing Applications." In CLEO: Science and Innovations. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_si.2024.sf2j.6.

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A 1D line-scan metalens integrated MEMS actuator with a field-of-view 80° × 60° has been demonstrated as proof-of-concept. This metalens integrated MEMS actuator shows promise as a compact optical module for depth sensing applications.
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Riis, Erling, Paul Griffin, Aidan Arnold, and James McGilligan. "Compact Platforms for Cold-Atom Clocks." In Laser Science. Optica Publishing Group, 2024. https://doi.org/10.1364/ls.2024.fm1a.1.

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We examine solutions for miniaturizing atomic clocks for performance at the 10^-15 level. Microwave and optical interrogation of a rubidium microwave clock are highlighted. MEMS and additively manufactured vacuum and spectroscopy cells will be presented. Full-text article not available; see video presentation
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Challoner, A. Dorian, and Mark G. Marshall. "Compact Digital Symmetric MEMS Vibrating Structure Gyroscope." In 2024 DGON Inertial Sensors and Applications (ISA). IEEE, 2024. https://doi.org/10.1109/isa62769.2024.10786029.

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Yang, Qiaohui, Zhenyu Hu, Tianyu Liu, et al. "Compact Optical Frequency Standard with MEMS Vapor Cells." In 2024 European Frequency and Time Forum (EFTF). IEEE, 2024. http://dx.doi.org/10.1109/eftf61992.2024.10722316.

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Choi, S., S. Kim, Y. Yoon, and M. G. Allen. "A Magnetically Excited And Sensed MEMS-Based Resonant Compass." In INTERMAG 2006 - IEEE International Magnetics Conference. IEEE, 2006. http://dx.doi.org/10.1109/intmag.2006.376319.

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SHENG, Wei, Zhen-zhen MA, and Jian-cheng FANG. "Design and Realization of Silicon MEMS-Based Micro Magnetic Compass for Mini-UAV." In Proceedings of the International Conference. World Scientific Publishing Company, 2008. http://dx.doi.org/10.1142/9789812799524_0216.

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Al-Mahdi, Osamah Lutf Qaid, A. Y. Ahmed, J. O. Dennis, and M. H. Md. Khir. "Modeling of a Highly Sensitive Lorentz Force-Based CMOS-MEMS Magnetometer for E-Compass Applications." In 2020 8th International Conference on Intelligent and Advanced Systems (ICIAS). IEEE, 2021. http://dx.doi.org/10.1109/icias49414.2021.9642619.

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Fu, Jun, Zhiwen Ning, and Yang Chang. "Research on Optimal Design Method of Active Compensation Coil for MEMS Electronic Compass Strong Magnetic Interference." In 2021 4th International Conference on Information and Computer Technologies (ICICT). IEEE, 2021. http://dx.doi.org/10.1109/icict52872.2021.00053.

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Zimmerleiter, Robert, Paul Gattinger, Kristina Duswald, Thomas Reischer, and Markus Brandstetter. "Fiber-Coupled MEMS-based NIR Spectrometers for Material Characterization in Industrial Environments." In OCM 2021 - 5th International Conference on Optical Characterization of Materials. KIT Scientific Publishin, 2021. http://dx.doi.org/10.58895/ksp/1000128686-15.

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Recently emerged near-infrared (NIR) spectrometers based on micro-electromechanical systems (MEMS) are a highly compact, rugged and cost-efficient alternative to infrared spectrometers conventionally used in industrial environments. The majority of the devices currently available are designed for measurements in diffuse reflection geometry in close contact with the sample, with built-in low-power halogen light sources – usually intended for consumer applications. However, for most material characterization applications in the industrial environment such a measurement configuration is neither f
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Majlis, Burhanuddin Yeop, Gandi Sugandi, and Mimiwaty Mohd Noor. "Compact electrodynamics MEMS-speaker." In 2017 China Semiconductor Technology International Conference (CSTIC). IEEE, 2017. http://dx.doi.org/10.1109/cstic.2017.7919752.

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Reports on the topic "MEMS compass"

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Bourrier, Mathilde, Michael Deml, and Farnaz Mahdavian. Comparative report of the COVID-19 Pandemic Responses in Norway, Sweden, Germany, Switzerland and the United Kingdom. University of Stavanger, 2022. http://dx.doi.org/10.31265/usps.254.

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The purpose of this report is to compare the risk communication strategies and public health mitigation measures implemented by Germany, Norway, Sweden, Switzerland, and the United Kingdom (UK) in 2020 in response to the COVID-19 pandemic based on publicly available documents. The report compares the country responses both in relation to one another and to the recommendations and guidance of the World Health Organization where available. The comparative report is an output of Work Package 1 from the research project PAN-FIGHT (Fighting pandemics with enhanced risk communication: Messages, comp
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Análises situacionais e retrospectivas : empreendedorismo. Instituto de Pesquisa Econômica Aplicada (Ipea), 2025. https://doi.org/10.38116/ri-eb-2050-empreendedorismo.

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Abstract:
O texto aborda o conceito de empreendedorismo no Brasil, destacando como ele tem sido interpretado tanto como um motor de desenvolvimento econômico quanto como um mecanismo para gerar ocupação e renda para os trabalhadores que não têm acesso ao emprego formal. As leis complementares nos 123/2006 e 128/2008 impulsionaram o empreendedorismo, facilitando a criação e o crescimento de micro e pequenas empresas (MPEs) e trabalhadores por conta própria – microempreendedores individuais (MEIs) –, simplificando a tributação, diminuindo a burocracia e promovendo melhores condições de crédito e participa
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