Relevant bibliographies by topics / NVH tests

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'NVH tests'

Author: Grafiati
Published: 1 June 2024
Last updated: 19 July 2025

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Journal articles on the topic "NVH tests"

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Chakroun, Ala Eddin, Mattia Battarra, and Emiliano Mucchi. "Influence of the Hydraulic Circuit Setup on the Dynamic Performance of an Axial Piston Pump by Numerical and Experimental Analysis." Mathematical Problems in Engineering 2024 (April 18, 2024): 1–16. http://dx.doi.org/10.1155/2024/2966138.

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The hydraulic circuit in hydraulic mechanisms may be the cause of several vibration anomalies. Flexible pipes, in particular, commonly used in test rigs, may be the source of vibration issues due to their relatively low natural frequencies altering the pump noise, vibration, and harshness (NVH) performance. The purpose of this study is to detail a methodology based on lumped parameter modeling and experiments to analyze the circuit NVH behavior. An experimental study is carried out on two pump designs to determine the outlet pressure fluctuation of various test rig configurations. Numerical si
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Singh, Rahul, Amogh Nalawade, Manish Pande, and Punit Singh. "Vibration and noise characteristics of an inverter for electric vehicle application." Vibroengineering Procedia 50 (September 21, 2023): 145–51. http://dx.doi.org/10.21595/vp.2023.23563.

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Noise, Vibration & Harshness (NVH) is one of the key parameters associated with comfort of an automobile. An Electric Vehicle (EV) consists of transmission driven by electric motor which ultimately gets its power or current supply from inverter. As per Electric vehicle architecture, motor ranks first followed by transmission and inverter in terms of NVH performance. The function of an inverter is to convert DC current from battery source to 3-phase AC current which goes to electric motor. Torque and speed characteristics of motor is dependent on current and voltage supply from inverter. He
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Schweighardt, A., B. Vehovszky, and D. Feszty. "The effect of the preload determination process on dynamic mechanical properties." Journal of Physics: Conference Series 2677, no. 1 (2023): 012007. http://dx.doi.org/10.1088/1742-6596/2677/1/012007.

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Abstract NVH simulation and experimental methods are getting more and more important because of the increased customer needs for reliability and comfort. In order to obtain appropriate NVH simulation results accurate material properties have to be provided as input parameters. In case of the dynamic mechanical property determination of acoustic viscoelastic foams the results may vary greatly depending on the measurement settings and the quality of the measurement. This study evaluates the effect of the preload determination process on dynamic mechanical properties and the repeatability of the
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Guinebretière, Marie-Hélène, Sandrine Auger, Nathalie Galleron, et al. "Bacillus cytotoxicus sp. nov. is a novel thermotolerant species of the Bacillus cereus Group occasionally associated with food poisoning." International Journal of Systematic and Evolutionary Microbiology 63, Pt_1 (2013): 31–40. http://dx.doi.org/10.1099/ijs.0.030627-0.

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An aerobic endospore-forming bacillus (NVH 391-98T) was isolated during a severe food poisoning outbreak in France in 1998, and four other similar strains have since been isolated, also mostly from food poisoning cases. Based on 16S rRNA gene sequence similarity, these strains were shown to belong to the Bacillus cereus Group (over 97 % similarity with the current Group species) and phylogenetic distance from other validly described species of the genus Bacillus was less than 95 %. Based on 16S rRNA gene sequence similarity and MLST data, these novel strains were shown to form a robust and wel
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Dziechciarz, Arkadiusz, Aron Popp, Claudia Marțiș, and Maciej Sułowicz. "Analysis of NVH Behavior of Synchronous Reluctance Machine for EV Applications." Energies 15, no. 8 (2022): 2785. http://dx.doi.org/10.3390/en15082785.

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In this paper, an analysis of noise and vibration of a synchronous reluctance machine for EV applications is performed. The analyzed machine was designed for electric vehicle application. The noise and vibration of a synchronous reluctance machine were first estimated during simulations; next, the obtained results were validated during laboratory tests. The analyzed model of the machine was simplified and included only stator core as it was assumed to be the main source of the machine vibration and generated noise. To simulate the noise and vibration of the machine, multiphysics modeling of th
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Guo, Han, Jianwu Zhang, and Haisheng Yu. "Robust optimisation of dynamic and NVH characteristics for compound power-split hybrid transmission." Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics 233, no. 4 (2019): 817–26. http://dx.doi.org/10.1177/1464419319856774.

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In this paper, vibro-acoustic characteristics of a power-split hybrid transmission including a compound planetary gear set are investigated by numerical procedure and refined system dynamics modelling. For validation of the numerical predictions, bench tests are performed for dynamic and acoustic responses of the hybrid transmission, contribution rates of acoustic radiation power induced due to the planetary gears, support bearings, transmission shafts and the gearbox housing are estimated. In improving the noise, vibration and harshness (NVH) performance of the transmission during hybrid vehi
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Li, Hui Bin, Awais A.M., Qi Chen Lu, and De Quan Jin. "Experimental Study on Durability and NVH of Rear Driving Axle of Minibus." Advanced Materials Research 655-657 (January 2013): 511–14. http://dx.doi.org/10.4028/www.scientific.net/amr.655-657.511.

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Experiments on the durability for the rear driving axle were conducted in bench tests. By using time domain and frequency domain methods, the vibration and noise signals at bearings of driving axle were sampled and then analyzed. On the one hand, we find that the vibration level and noise level change with the wear of gears and bearings. On the other hand, with the development of the wear of gear and bearings, the frequency components of vibration and noise change with time. These experimental results will give help to further study of the durability and NVH characteristic of the rear driving
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Dong, Yangyang, Changyan Du, Xiaohui Wang, Yi Fan, Shengyou Liao, and Yiyong Han. "Research on the influence of plastic oil pan of the engine on the NVH performance." Journal of Physics: Conference Series 2932, no. 1 (2025): 012033. https://doi.org/10.1088/1742-6596/2932/1/012033.

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Abstract To analyze the dynamic characteristics of diesel engine camshafts and the factors affecting camshaft speed fluctuations, a multi-body dynamic model for gear transmission analysis is established. We analyze and consider the calculation results of spring preload, spring stiffness, cam profile, crankshaft timing gear speed fluctuation, gear meshing clearance, accessory load, and part rotational inertia on the fluctuation of camshaft angular velocity. The results show that gear clearance has a significant impact on camshaft speed fluctuation, while other factors have a relatively small im
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Shi, Hui, Wenku Shi, Liang Sun, and Zhiyong Chen. "Improving Camper Comfort by Optimizing the Vibration Isolation of Air-Conditioning Compressor." Mathematical Problems in Engineering 2020 (December 23, 2020): 1–14. http://dx.doi.org/10.1155/2020/2958604.

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Compressors are the main excitation source of vibration and noise in camper air-conditioning systems, which directly affects the NVH characteristics in campers. The vibration and noise reduction for camper comfort improvement can be implemented by the optimization method. This paper presents vibration and noise improvement in camper by systematically optimizing the vibration isolation performance of air-conditioning compressor. To analyze the compressor vibration characteristics, operational vibration tests under different conditions and modal identification are implemented. Based on the analy
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Yong, Sukjun, and JangSeok Park. "A study on the new PET composite sound-absorbing material applicable to automotive interior materials." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 265, no. 4 (2023): 3297–302. http://dx.doi.org/10.3397/in_2022_0466.

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Various types of sound-absorbing materials are used in vehicles according to external noise and conditions. As sound-absorbing materials for automobiles, there are fiber-type materials such as PET fiber or glass fiber, and foam-type materials such as polyurethane. Among them, PET fiber materials have excellent advantages in terms of weight reduction and recycling, but urethane foam is applied due to their low NVH performance and compressive stress. Recently, as interest in eco-friendly vehicles increases, development of sound absorbing materials using PET fiber is required. To improve this pro
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Dissertations / Theses on the topic "NVH tests"

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De, la Cruz Miguel. "The influence of transient thermo-elastohydrodynamic conjunctions on automotive transmission rattle." Thesis, Loughborough University, 2011. https://dspace.lboro.ac.uk/2134/8042.

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Automotive transmission rattle is the noise generated due to impacts between manual transmissions meshing gear teeth in the presence of backlash. It is considered to be a Noise, Vibration and Harshness (NVH) phenomenon and is originated due to combustion irregularities (engine order vibrations), especially in diesel vehicles. This thesis focuses in the case of creep rattle for the MMT6 Ford Getrag transmission (six speeds plus reverse) with a DW10b, 4-cylinder, 4-stroke, 2.0 litres diesel engine. This particular rattle condition is fundamentally similar to any other where an engaged gear is pe
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Strubel, Nicolas. "Brake squeal : identification and influence of frictional contact localizations." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILN059.

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En tant que radiations acoustiques intenses impliquant de conséquentes nuisances environnementales ainsi que de nombreux retours clients, le crissement des systèmes de freinage est un problème de vibration induite par frottement dépendant indubitablement de problématiques multi-physiques et multi-échelles. Parmi ces dernières, la structure du système, les paramètres opérationnels de freinage, les interfaces de contact frottant, couplés à une dépendance en température, ainsi que les non-linéarités de contact ou les aspects tribologiques, sont des éléments affectant considérablement le crissemen
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Cantalogo, Alexsander. "Modelagem de \'Deadeners\' usando NASTRAN e correlação experimental." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/18/18149/tde-13032012-085537/.

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Este trabalho visa o desenvolvimento de um modelo em elementos finitos de elementos de dissipação vibratória de base betuminosa, chamados comumente de deadeners. O modelo baseia-se no algoritmo comercial MSC/NASTRAN e é correlacionado e verificado com base em dados experimentais de laboratório. O resultado final deste projeto é um modelo para os deadeners que pode ser utilizado em modelos de elementos finitos de veículos completos, facilitando assim a definição da melhor localização dos mesmos no veículo bem como a otimização de seu uso. O modelo tem melhor resultado em termos de amplitude par
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Souza, Fernando José Pires de [UNESP]. "Eficácia de uma vacina comercial contra a raiva frente a desafios com amostras de vírus de campo comparados ao desafio padrão no teste NIH." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/94645.

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Made available in DSpace on 2014-06-11T19:27:16Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-06-22Bitstream added on 2014-06-13T18:55:49Z : No. of bitstreams: 1 souza_fjp_me_jabo.pdf: 289543 bytes, checksum: 6ec4fdfeb3984ff7356fa03db7b0aed6 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>No Brasil, a potência das vacinas veterinárias contra a raiva é avaliada pelo teste NIH (“National Institutes of Health”), no qual o desempenho de uma vacina, medido pela DE50 em camundongos, é comparado ao desempenho de uma vacina de referência. São consideradas apr
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Park, Hyungjoo. "Development of a Test System to Measure Squeak Propensity of Vehicle Underbody Components." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1592135515122287.

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Xie, Yuan. "Investigation on Road Noise Transmission through Steering System." Thesis, KTH, MWL Marcus Wallenberg Laboratoriet, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-224153.

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An investigation on noise transmission through the steering gear system is focused on the area of vehicle NVH (Noise Vibration and Harshness). From previous investigations it is well known that noise transmission through the steering system sometimes has a significant influence referring to tire road noise. In these cases, the interface force between steering gear and vehicle subframe is usually of interest during early stages of vehicle development. The target of the current work is to validate an approach based on a method, commonly known as the “Blocked force method” for noise and vibration
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FERRARIS, ALESSANDRO. "Automotive composite components design and test: a vibration reduction oriented approach." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2674339.

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Vehicle manufacturers initially relied on horsepower and speed performances as “standout qualities” to sell their products, but as time progressed, it became increasingly clear that customers were very much concerned about their comfort and safety while driving vehicles. In the late seventies, requirements for driver and passenger comfort were increased significantly, since-then, a large amount of effort has been invested into the vehicle improvement of noise and vibration reduction nevertheless enhancing the safety. Nowadays NVH performance is considered as a critical factor in the purchase
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Otipka, Václav. "Konstrukční návrh zkušebního stavu s uzavřenou smyčkou toku momentu pro experimentální ověření parametrů převodových ústrojí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378013.

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The thesis deals with the design of the experimental testing rig. Test rig is designed to measure NVH transmission parameters. First, basic knowledge of vibro-acoustic measurement is discussed. This is followed by an evaluation of the most commonly used power devices to derive real loads on measured gearboxes. In more detail, a back-to-back test rig is disassembled among other things. In the thesis are described two main components, which are composed of a connecting element and a test bench. Both components were optimized during the design due to their modal properties. Numerical modal analys
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Baker, Erin R. "Attitudes and Practices of NIH-funded Researchers Toward Reporting Individual Test Results to Research Subjects." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1147100909.

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Schille, Fabian Martin [Verfasser], and A. [Akademischer Betreuer] Albers. "Methode zur generationsübergreifenden NVH-Optimierung des Wiederstartkomforts von Hybridfahrzeugen durch eine manöverbasierte Validierung auf dem Akustikrollenprüfstand = Method for an intergenerational NVH-optimisation regarding the restarting comfort of hybrid vehicles using a manoeuvre-based validation on the acoustic roller test bench / Fabian Martin Schille ; Betreuer: A. Albers." Karlsruhe : KIT-Bibliothek, 2021. http://d-nb.info/1235072436/34.

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Books on the topic "NVH tests"

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Rudman, Jack. NVB, National Veterinary Boards. National Learning Corporation, 1991.

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Rudman, Jack. NVB, National Veterinary Boards: Administered by the National Board of Veterinary Medical Examiners (NBVME) of the American Veterinary Medical Association (AVMA). National Learning Corp., 1990.

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Rudman, Jack. NVB, National Veterinary Boards: Administered by the National Board of Veterinary Medical Examiners (NBVME) of the American Veterinary Medical Association (AVMA). National Learning Corp., 1986.

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1945-, Moon Bob, Murphy Patricia 1952-, and Open University, eds. Developments in learning and assessment. Hodder & Stoughton in association with the Open University, 1989.

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Jenny, Tucker, ed. The NVQ and GNVQ assessor handbook: A practical guide to units D32, D33, D34, and D36. Kogan Page, 1994.

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Kaplan, Tamara, and Tracey Milligan. Dementia 2: CJD, NPH, and Summary (DRAFT). Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190650261.003.0010.

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The video in this chapter explores dementia, and focuses on Creutzfeldt Jakob Disease (CJD), and Normal Pressure Hydrocephalus (NPH). It outlines the causes and symptoms of CJD, as well as diagnostic tests (MRI, CSF presence of protein 14-3-3, EEG, and biopsy). It also discusses NPH, including its characteristics and treatment.
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NIH stroke scale. National Institute of Neurological Disorders and Stroke, Dept. of Health and Human Services, USA, 2011.

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Standard Variety Pack 2 Contains 3 Tests Maths 11b Vr 11b Nvr 11b. GL Assessment, 2003.

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Kabaaru moy̳y̳o o no Macca winndiri d̳um nih: Feccere adannde e linjiila ... M.E.A.O, 1995.

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The Nvq & Gnvq Assessor Handbook. 2nd ed. Kogan Page, 1997.

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Book chapters on the topic "NVH tests"

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Millitzer, Jonathan, Jan Hansmann, Giovanni Lapiccirella, Christoph Tamm, and Sven Herold. "Tuning and Emulation of Mechanical Characteristics – Tunable Mounts and a Mechanical Hardware-in-the-Loop Approach for More Efficient Research and Testing." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77256-7_12.

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AbstractNumerical simulations offer a wide range of benefits, therefore they are widely used in research and development. One of the biggest benefits is the possibility of automated parameter variation. This allow testing different scenarios in a very short period of time. Nevertheless, physical experiments in the laboratory or on a test rig are still necessary and will still be necessary in the future. The physical experiments offer benefits e.g. for very complex and/or nonlinear systems and are needed for the validation of numerical models.Fraunhofer LBF has developed hardware solutions to bring the benefit of rapid and automated parameter variation to experimental environments. These solutions allow the tuning and emulation of the mechanical properties, like stiffness, damping and eigenfrequencies of structures.The work presents two approaches: First a stiffness tunable mount, which has been used in laboratory tests in the field of semi-active load path redistribution. It allowed the researcher to test the semi-active system under different mechanical boundary conditions in a short period of time. Second, a mechanical Hardware-in-the-loop (mHIL) approach for the NVH development of vehicles components is presented. Here a mHIL-system is used to emulate the mechanical characteristics of a vehicle’s body in white in a wide frequency range. This allows the experimental NVH optimization of vehicle components under realistic boundary conditions, without actually needing a (prototype) body in white.
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Chen, Yong. "NVH Test and Optimization for New Energy Vehicle Powertrain." In New Energy Vehicle Powertrain Technologies and Applications. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9566-8_5.

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Gilliland, C. Taylor, William Heetderks, Krishna Juluru, et al. "11 Accelerating Diagnostic Innovation for Pandemic Control." In Principles and Practice of Emergency Research Response. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-48408-7_13.

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AbstractAny serious outbreak of a novel infectious disease requires rapid innovation in testing technologies that can efficiently and accurately screen and diagnose active infection on both the individual and population levels. Delays in diagnostic testing imperil containment of an outbreak and delay control of a pandemic. In response to the dearth of diagnostics for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) at the outset of the coronavirus disease 2019 (COVID-19) pandemic, the U.S. National Institutes of Health (NIH) launched the Rapid Acceleration of Diagnostics (RADx) initiative. RADx comprises a suite of programs to support the development, production scale-up, and deployment of SARS-CoV-2 tests across the country. RADx helped create a diagnostic testing ecosystem that is dynamic, distributed, and accessible, and that extends diagnostic testing to the point of care (POC) and into homes, schools, and places of business. This chapter describes the approach and lessons learned through one of the components of RADx, RADx Technology, that sped innovation in the development, commercialization, and implementation of COVID-19 testing. RADx Tech, led by the NIH National Institute of Biomedical Imaging and Bioengineering (NIBIB), used an innovation funnel methodology to compress the diagnostic technology development timeline from years to months. This was accomplished by employing expert teams in parallel to address technical, regulatory, clinical, and commercialization requirements and to support the validation, de-risking, scale-up, manufacturing, and deployment of novel SARS-CoV-2 tests. RADx Tech and its partner programs enabled dozens of testing technologies to obtain regulatory authorization, delivered billions of tests into the market, and catalyzed a fundamental shift toward the acceptance and widespread use of self-testing. This program represents a new paradigm by which the NIH, and the federal government writ large, can catalyze medical technology development during a public health emergency.
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Yang, Jin, Jun Lan, Xu YongJiang, et al. "The Application of Doppler Laser Vibrometer in the Engine NVH Dynocell Test." In Lecture Notes in Electrical Engineering. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-33832-8_48.

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Sacareanu, Sorin, Cristi Irimia, Dan Predica, and Alexandra Baicoianu. "Test-Based Virtual Methods to Explore NVH Issues of Hybrid and Electrical Vehicles." In Proceedings in Automotive Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-77627-4_20.

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Gur, Yuksel, Jian Pan, and David A. Wagner. "Low- and high-frequency NVH CAE – test methods for development of a lightweight sedan design." In Proceedings. Springer Fachmedien Wiesbaden, 2019. http://dx.doi.org/10.1007/978-3-658-20251-4_2.

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Jamet, Quentin, Etienne Mémin, Franck Dumas, Long Li, and Pierre Garreau. "Toward a Stochastic Parameterization for Oceanic Deep Convection." In Mathematics of Planet Earth. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-40094-0_6.

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AbstractCurrent climate models are known to systematically overestimate the rate of deep water formation at high latitudes in response to too deep and too frequent deep convection events. We propose in this study to investigate a misrepresentation of deep convection in Hydrostatic Primitive Equation (HPE) ocean and climate models due to the lack of constraints on vertical dynamics. We discuss the potential of the Location Uncertainty (LU) stochastic representation of geophysical flow dynamics to help in the process of re-introducing some degree of non-hydrostatic physics in HPE models through a pressure correction method. We then test our ideas with idealized Large Eddy Simulations (LES) of buoyancy driven free convection with the CROCO modeling platform. Preliminary results at LES resolution exhibit a solution obtained with our Quasi-nonhydrostatic (Q-NH) model that tends toward the reference non-hydrostatic (NH) model. As compared to a pure hydrostatic setting, our Q-NH solution exhibits vertical convective plumes with larger horizontal structure, a better spatial organization and a reduced intensity of their associated vertical velocities. The simulated Mixed Layer Depth (MLD) deepening rate is however too slow in our Q-NH experiment as compared to the reference NH, a behaviour that opposes to that of hydrostatic experiments of producing too fast MLD deepening rate. These preliminary results are encouraging, and support future efforts in the direction of enriching coarse resolution, hydrostatic ocean and climate models with a stochastic representation of non-hydrostatic physics.
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Taomoto, Katsushi, Akihiro Ijichi, Michio Yamaguchi, and Isao Kinoshita. "Clinical Evaluation of Sophisticated Mental Tests and 123I-IMP SPECT in Normal Pressure Hydrocephalus (NPH) Patients." In Hydrocephalus. Springer Japan, 1991. http://dx.doi.org/10.1007/978-4-431-68156-4_65.

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Kersting, Annie B., and Mavrik Zavarin. "Colloid-Facilitated Transport of Plutonium at the Nevada Test Site, NV, USA." In Actinide Nanoparticle Research. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11432-8_15.

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Armistead-Jehle, Patrick, Robert L. Denney, and Robert D. Shura. "Use of the Word Memory Test (WMT), Medical Symptom Validity Test (MSVT) and Nonverbal Medical Symptom Validity Test (NV-MSVT) in Assessment Following Head Injury." In Detection of Malingering during Head Injury Litigation. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-54656-4_5.

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Conference papers on the topic "NVH tests"

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Nassar, Hassan, Ming-Liang Wei, Chia-Lin Yang, Jörg Henkel, and Kuan-Hsun Chen. "REAP-NVM: Resilient Endurance-Aware NVM-Based PUF Against Learning-Based Attacks." In 2025 Design, Automation & Test in Europe Conference (DATE). IEEE, 2025. https://doi.org/10.23919/date64628.2025.10992747.

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Scaramuzza, Pierre, Thomas Kern, Matteo Coppetta, Alessandro Grossi, and Rudolf Ullmann. "A graph-based algorithm for NVM address decoders testing." In 2024 IEEE International Test Conference (ITC). IEEE, 2024. http://dx.doi.org/10.1109/itc51657.2024.00064.

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Del Sol, Marc, and Roger Mateu. "Global Tool for Objective Data Acquisition for Brake NVH Tests." In Asia Pacific Automotive Engineering Conference. SAE International, 2013. http://dx.doi.org/10.4271/2013-01-0053.

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Kruse, Enrico, Hendrik Sell, and Florian Loecken. "Electric Motor Mounting System Validation with Subsystem and Powered e-Axle Tests." In Noise and Vibration Conference & Exhibition. SAE International, 2023. http://dx.doi.org/10.4271/2023-01-1097.

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&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;As more and more electric vehicles on dedicated platforms are being developed and launched, motor mounting systems evolve to focus on the specific requirements of the electric drive units (EDUs) – especially the partially opposing targets of controlling powertrain motion under torque and enhancing high frequency isolation. The initial layout of the EDU mounting system, such as the number, position and orientation of the motor mounts as well as their linear and non-linear stiffness properties, during the quotation phase a
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Fodorean, D., M. Sarrazin, Claudia Steluta Martis, J. Anthonis, and H. Van der Auweraer. "Characterizing the motorization of a light electric vehicle through FEM and NVH tests." In 2014 XXI International Conference on Electrical Machines (ICEM). IEEE, 2014. http://dx.doi.org/10.1109/icelmach.2014.6960523.

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Kavarana, Farokh, and Bill Guertin. "A Comprehensive Evaluation of PU Foam Sealing for EV NVH Performance." In Noise & Vibration Conference & Exhibition. SAE International, 2025. https://doi.org/10.4271/2025-01-0120.

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&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;Low density polyurethane foam was first proposed as an alternative to expandable baffles and tapes for sealing vehicle body cavities towards the end of the last century. Despite several inherent advantages for cavity sealing, the high equipment cost of dispensing amongst other reasons, this technology has not spread as widely as expected. With the advent of electric vehicles, there is an increased emphasis on controlling higher frequencies from motors, inverters and other components, and polyurethane foam can be a viable
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Yun, Zhao, Huang Shouhui, Zhongxun Hu, Hui Hui, Changshui Zhou, and Charlie Teng. "Research on NVH Performance of Pulse Heating System of One Vehicle." In Noise & Vibration Conference & Exhibition. SAE International, 2025. https://doi.org/10.4271/2025-01-0078.

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&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;When the ambient temperature is too low, the performance of the lithium-ion battery will deteriorate, and the car will have the problems of difficult charging, fast power consumption, and even difficult to start, so the battery needs to be heated before use to provide a comfortable working environment for the lithium-ion. The high-frequency pulse heating system can quickly and evenly raise the temperature of the battery, but there is noise during operation, which affects the NVH performance of the vehicle itself, and its
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Huang, Chao, Lu Xiong, Dejian Meng, Yu Gong, Han Guo, and Mengyuan Zhang. "A Theoretical and Experimental Investigation of NVH of In-Wheel Reducer and Motor Drive System." In Noise & Vibration Conference & Exhibition. SAE International, 2025. https://doi.org/10.4271/2025-01-0006.

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&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;To enhance the power density of the system and reduce production costs, the high-speed electric drive system featuring integrated design and control is poised to be the future development trend. However, the high speeds of motors and gear reducers can lead to challenges such as system reliability and issues related to NVH. This paper specifically addresses the NVH concerns associated with the in-wheel reducer and motor drive system (IWRMDS). First, a bench test scheme is established, and vibration and noise tests are con
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Zanarini, Alessandro, Filip De Coninck, Krzysztof Mendrok, and Paul Sas. "Direct and Indirect Vibro-Acoustic Measurements for Road Noise NVH Predictions." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-85633.

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This paper describes vibro-acoustic direct and indirect measurements for road noise NVH predictions from a complete car. Attention is devoted to the dynamic response of the structure and interior pressure field toward tire patch displacement inputs. The direct measurements exploited the Team Corporation CUBE™ high frequency 6 degree-of-freedom (DOF) shaker recently installed at the KULeuven Vehicle Technologies Laboratory; the input was provided directly at the tire contact patch, while the responses were measured as accelerations and pressures on the structure. In the indirect measurements a
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Soloiu, Valentin, Emerald Simons, Martin Muinos, and Spencer Harp. "NVH of RCCI With DI ULSD and PFI With 50% N-Butanol." In ASME 2015 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/icef2015-1161.

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The noise of diesel engines is dependent upon numerous factors such as: load, speed, fuel injection strategies and fuel type, design of the piston, piston-pin and cylinder and their tolerances, bearings, valves and rocker arm clearances, and designs of the manifolds. In this study, engine sound and vibrations analysis have been conducted using two types of fueling and combustion strategies: classical ULSD combustion and the new RCCI with n-butanol injected in the intake manifold. The analyses add to the understanding of the influence of combustion characteristics’ effect on mechanical noise an
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Reports on the topic "NVH tests"

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Teitsma, Albert. L52091 Better Understanding of Mechanical Damage in Pipelines. Pipeline Research Council International, Inc. (PRCI), 2004. http://dx.doi.org/10.55274/r0011829.

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This report summarizes work done at the Battelle Memorial Institute, (Nestleroth, 2003) and the Southwest Research Institute (Chell, 2003) on "Better Understanding of Mechanical Damage in Pipelines" for DOT and GTI under the direction of the Gas Technology Institute. Battelle Memorial Institute concentrated on developing MFL technologies for detecting and characterizing mechanical damage defects. Combining axial and circumferential MFL, provides sensitivity to defects of all orientations, accurately determines the width and length of a defect, and more accurately predicts defect depths due to
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Han, Jung Min, Jesse Wagner, Allison Hedden-Gross, James Davis, Ericka Kalp, and Jonathan Treadwell. Interventions To Prevent Nonventilator Hospital-Acquired Pneumonia. AHRQ, 2025. https://doi.org/10.23970/ahrqepc_mhs4pneumonia.

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Objectives. This rapid review summarizes literature for patient safety practices (PSPs) intended to prevent nonventilator hospital-acquired pneumonia (NV-HAP). Methods. We followed rapid review processes of the Agency for Healthcare Research and Quality Evidence-based Practice Center Program. We searched PubMed, Embase, and the Cochrane Library to identify eligible systematic reviews from January 2019 to August 2024 and primary studies published from January 2010 to August 2024, supplemented by targeted gray literature searches. We included literature that addressed any PSPs intended to preven
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Megahed, M. RELAP5/MOD2 assessment simulation of semiscale MOD-2C test S-NH-3. Office of Scientific and Technical Information (OSTI), 1987. http://dx.doi.org/10.2172/6096818.

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Lee, E. J., B. D. Chung, and H. J. Kim. RELAP5 assessment using semiscale SBLOCA test S-NH-1. International Agreement Report. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10171705.

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สุทธิวาณิชกุล, บงกช, วิบูลลักษณ์ วิสุทธิศักดิ์ та จิราภรณ์ ธนียวัน. การผลิตสาร Biosurfactant โดย Bacillus licheniformis สายพันธุ์ F2.2 : รายงานวิจัย. จุฬาลงกรณ์มหาวิทยาลัย, 1996. https://doi.org/10.58837/chula.res.1996.20.

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การทดลองผลิตสารไบโอเซอร์แฟกแตนท์โดยใช้เชื้อ Bacillus licheniformis F2.2 ซึ่งแยกได้มาจากอาหารหมักดอง สารที่ผลิตได้จึงเชื่อว่ามีความปลอดภัยต่อการใช้งาน ไม่เป็นพิษต่อสิ่งแวดล้อม จากการทำวิจัยพบว่าสามารถผลิตสารไบโอเซอร์แฟกแตนท์ (BS) ที่ให้คุณสมบัติในการลดค่า Surface tension activity ได้ต่ำสุดถึง 27-29 mM/m ในอาหารเลี้ยงเชื้อ Defined medium ที่ประกอบด้วย glucose 2% เป็นแหล่งคาร์บอน และ NH[subscript 4]NO[subscript 3] 0.4% เป็นแหล่งไนโตรเจน เมื่อทดสอบเปรียบเทียบแหล่งคาร์บอนและไนโตรเจนอื่นๆ โดยการควบคุม pH8 ที่เวลา 12-24 ชั่วโมง ซึ่งจะให้ผลดีทั้งที่อุณหภูมิ 25 C และ 30 C และมีค่า Emulsification index
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Zavarin, M. Yields and Cavity Radii of Underground Nuclear Tests with Specified Yields Reported in DOE/NV -- 209-REV 15 (2000). Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1179117.

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Lahav, Ori, Albert Heber, and David Broday. Elimination of emissions of ammonia and hydrogen sulfide from confined animal and feeding operations (CAFO) using an adsorption/liquid-redox process with biological regeneration. United States Department of Agriculture, 2008. http://dx.doi.org/10.32747/2008.7695589.bard.

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The project was originally aimed at investigating and developing new efficient methods for cost effective removal of ammonia (NH₃) and hydrogen sulfide (H₂S) from Concentrated Animal Feeding Operations (CAFO), in particular broiler and laying houses (NH₃) and hog houses (H₂S). In both cases, the principal idea was to design and operate a dedicated air collection system that would be used for the treatment of the gases, and that would work independently from the general ventilation system. The advantages envisaged: (1) if collected at a point close to the source of generation, pollutants would
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ITLV. Corrective Action Investigation Plan for Corrective Action Unit 500: Test Cell A Septic System, Nevada Test Site, Nevada, Revision 0, DOE/NV--528 UPDATED WITH TECHNICAL CHANGE No.1. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/8810.

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Author, Not Given. Addendum to: Corrective Action Decision Document/Corrective Action Plan (CADD/CAP) for Corrective Action Unit (CAU) 443: Central Nevada Test Area (CNTA)-Subsurface Central Nevada Test Area, DOE/NV-977. Office of Scientific and Technical Information (OSTI), 2008. http://dx.doi.org/10.2172/1114521.

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US DOE Nevada Operations Office. Record of Technical Change {number_sign}1 to ''Corrective Action Investigation Plan for Corrective Action Unit 261: Test Cell A Leachfield System, Nevada Test Site, Nevada,'' Revision 0, DOE/NV-519. Office of Scientific and Technical Information (OSTI), 2000. http://dx.doi.org/10.2172/751162.

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