Academic literature on the topic 'NEWER TECHNIQUES'

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Journal articles on the topic "NEWER TECHNIQUES"

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Conway, William F., Fred J. Laine, and Russell A. Blinder. "Newer Diagnostic Imaging Techniques." Oral and Maxillofacial Surgery Clinics of North America 3, no. 2 (May 1991): 259–72. http://dx.doi.org/10.1016/s1042-3699(20)30497-0.

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Nelson, James A. "Newer Subtraction and Filtration Techniques." Radiologic Clinics of North America 23, no. 2 (June 1985): 185–92. http://dx.doi.org/10.1016/s0033-8389(22)01274-x.

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Maniglia, Anthony J., Brian Dodds, Kelly Sorensen, N. Kumar, and M. B. Katirji. "Newer Techniques of Laryngeal Reinnervation." Annals of Otology, Rhinology & Laryngology 98, no. 1 (January 1989): 8–14. http://dx.doi.org/10.1177/000348948909800103.

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We relate the experience obtained in the use of the right superior laryngeal nerve (motor branch)–cricothyroid muscle pedicle flap in dogs in an attempt to reinnervate the right posterior cricoarytenoid muscle (PCA). The right vocal cord was paralyzed by severance and removal of 2.5 cm of the right recurrent laryngeal nerve. Evaluation 6 months postoperatively revealed the vocal fold remobilization on the right side to have an average of about one half the mobility of the left, normal side. After the recurrent laryngeal and superior laryngeal nerves on the left were severed, the vocal cord mobility dropped to only about one fourth. This suggests that the dogs had contralateral reinnervation. Nevertheless, the right vocal cord mobility, driven only by the right superior laryngeal nerve, was enough to secure an adequate airway without the need for a tracheotomy. This experiment was statistically significant on comparison with a control group. Electromyographic studies as well as PCA histochemistry were performed.
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Johnston, Mark H. "Cryotherapy and other newer techniques." Gastrointestinal Endoscopy Clinics of North America 13, no. 3 (July 2003): 491–504. http://dx.doi.org/10.1016/s1052-5157(03)00044-8.

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Paech, Michael. "Newer techniques of labor analgesia." Anesthesiology Clinics of North America 21, no. 1 (March 2003): 1–17. http://dx.doi.org/10.1016/s0889-8537(02)00030-5.

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Fatima, Nazish. "Newer diagnostic techniques for tuberculosis." Respiratory Medicine CME 2, no. 4 (2009): 151–54. http://dx.doi.org/10.1016/j.rmedc.2009.09.015.

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Nasca, Richard J. "Newer Lumbar Interbody Fusion Techniques." Journal of Surgical Orthopaedic Advances 22, no. 02 (2013): 113–17. http://dx.doi.org/10.3113/jsoa.2013.0113.

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Mirza, M. Ather, and Eugene T. King. "Newer Techniques of Carpal Tunnel Release." Orthopedic Clinics of North America 27, no. 2 (April 1996): 355–71. http://dx.doi.org/10.1016/s0030-5898(20)32079-4.

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Carter, H. Ballentine, James B. Amberson, Neil H. Bander, Robert Badalament, Jeffrey Gorelick, E. Darracott Vaughan, and Willet F. Whitmore. "Newer Diagnostic Techniques for Bladder Cancer." Urologic Clinics of North America 14, no. 4 (November 1987): 763–69. http://dx.doi.org/10.1016/s0094-0143(21)01558-5.

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Ulrich, Harry, and Vladimir Kvetan. "Pulmonary support — newer concepts and techniques." Current Opinion in Anaesthesiology 8, no. 2 (April 1995): 132–38. http://dx.doi.org/10.1097/00001503-199504000-00006.

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Dissertations / Theses on the topic "NEWER TECHNIQUES"

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Oostingh, Kornelia Fieneke. "Ultra-Precise 40Ar/39Ar Geochronology: Development of 38Ar cosmogenic exposure and olivine (U-Th)/He dating techniques; and deciphering the geochemical evolution of the Newer Volcanic Province, SE Australia." Thesis, Curtin University, 2017. http://hdl.handle.net/20.500.11937/53004.

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In this study, existing (40Ar/39Ar) and underdeveloped (terrestrial cosmogenic 38Ar exposure dating and olivine (U-Th)/He dating) geochronology techniques are used and improved to better understand the igneous geology and landscape evolution of Australia. It is shown that an integral approach of geochemistry and ultra-precise geochronology, using the new generation multi-collector mass spectrometers, is of paramount importance to decipher the volcanic history of the small, intraplate Newer Volcanic Province in SE Australia.
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Neser, Morné. "Neuro-fuzzy techniques for intelligent control / by Morné Neser." Thesis, North-West University, 2006. http://hdl.handle.net/10394/953.

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In this study the utilization of neuro-fuzzy techniques is investigated for the realisation of intelligent control. Neuro-fuzzy systems combine the learning capabilities of neural networks with the rule based system description offered by fuzzy logic. Techniques are evaluated by means of a simple two-dimensional simulation of a three-segment robotic manipulator. The inverse kinematics and path planning required in such a system provides all the complexity needed for testing and evaluation. In complex systems, obtaining sufficient training examples also prove to be a problem. To address this problem an automated process of 'action evolution' was implemented, through which a genetic algorithm is used to collect examples as training data. A generic modular controller architecture is developed in order to simplify the comparison of different neural and neuro-fuzzy controllers. This architecture unifies numerous controller architectures into a single controller, capable of representing and combining classical, adaptive, intelligent and reinforcement learning controllers and it exposes the presence of various cognitive attributes. Neural and neuro-fuzzy systems are implemented and evaluated for local trajectory tracking and for global path planning. A serious problem of contradicting solutions encountered in the examples produced by the genetic algorithm, is solved through reinforcement learning. A modified fuzzy clustering algorithm is used to estimate the system's state values and control commands are derived by optimising this value. Modifications included negative reinforcement of prohibited states and concepts borrowed from ant algorithms for establishing solution paths. This study highlights the effect of ill-posed problems on the training of intelligent controllers. It shows how the problem can be simplified by basing the control policy on a value function and it implements neuro-fuzzy techniques to rapidly construct such a function. Proposals are made on how memory based search algorithms can be used to improve training data integrity and how evolving self-organising maps might prevent erroneous policy interpolation. This study contributes valuable conclusions on the implementation of intelligent controllers for the control of complex non-linear systems.
Thesis (M.Ing. (Electrical and Electronic Engineering))--North-West University, Potchefstroom Campus, 2006.
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SHARMA, AMAN. "SOFTWARE DEFECT PREDICTION WITH NEWER AND EFFCIENT TECHNIQUES." Thesis, 2021. http://dspace.dtu.ac.in:8080/jspui/handle/repository/18927.

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For a long time, software defects have been a big problem in the software optimization and development processes. Various processes have been hindered in the past due to a small defect, which if predicted or corrected at that moment could have resulted in exponential efficiency and enormous commercial benefits. With that in mind it is a viable option of the current time to come up with a process, service or algorithm that can help in software defect prediction. In a SDLC, it is a crucial part in the testing phase to identify the areas that are prone to problem and may ultimately lead to defects which may cause a very massive problem in the later stages of development. These problems may lead to a very important component of the algorithm to malfunction and at that stage can also make it costly to repair in terms of both finance and efforts. Time and cost have both been important development considerations when taking up and developing a project and if it is prolonged after the expected deadlines can lead to massive drop off in efficiency and vulnerability on the execution side of things. It is always better to predict the areas of the problems that may creep in and use algorithms that may help do such process in an easier and effective way. Moreover, we can also use these algorithms with greater and much accurate results when the training has been done for long periods of time as it can make the procedure for training much more robust and precise. This study helps in the analysis of the previously applied activities in the field of defect prediction on a widely known dataset and then focusses to optimize on these techniques using complementary methods that have been widely used in other disciplines. Newer techniques show promising results.
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Schmidt, Anne-Kathrin. "Untersuchung neuer Techniken zur Entfernung von Kalziumhydroxid aus dem Wurzelkanalsystem gerader Wurzelkanäle." Doctoral thesis, 2012. http://hdl.handle.net/11858/00-1735-0000-0006-B2BC-1.

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Schauff, Siri [Verfasser]. "Charakterisierung neuer Materialien in der Chromatographie und Brennstoffzellen-Forschung mit Hilfe moderner NMR-Techniken = Characterization of new materials in chromatography and fuel cell development by modern NMR techniques / vorgelegt von Siri Schauff." 2007. http://d-nb.info/983919968/34.

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Books on the topic "NEWER TECHNIQUES"

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P, Lever A. B., ed. Newer techniques in coordination chemistry. Amsterdam: Elsevier, 1989.

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Creasey, William A. Newer radionuclide imaging techniques in oncology: PET and SPECT. Bethesda, MD: U.S. Dept. of Health and Human Services, Public Health Service, National Institutes of Health, National Cancer Institute, International Cancer Research Data Bank, 1989.

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Dado, Floresha. Proza neper teknikat poetike. Tiranë: Botimet Toena, 1997.

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Weissenberg, Debbie A. You'll never walk alone: Hospital survival techniques. San Francisco: Whitewing Press, 1998.

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Association, Maine State Bar, ed. Never too late! techniques for post-mortem estate planning. [Augusta?]: Maine State Bar Association, 1991.

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Ben-Tovim, Atarah. You can make music: Its never too late to start. London: Gollancz, 1986.

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Management of PHACO Complications: Newer Techniques. Jaypee Brothers Medical Publishers (P) Ltd., 2014. http://dx.doi.org/10.5005/jp/books/12304.

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Agarwal, Amar. Management of Phaco Complications: Newer Techniques. Jaypee Brothers Medical Publishers, 2014.

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Simmons, Ivor L. Applications of the Newer Techniques of Analysis. Springer, 2012.

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Simmons, Ivor L. Applications of the Newer Techniques of Analysis. Springer, 2012.

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Book chapters on the topic "NEWER TECHNIQUES"

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McBratney, Alex B., Alison N. Anderson, R. Murray Lark, and Inakwu O. Odeh. "1.8 Newer Application Techniques." In SSSA Book Series, 159–200. Madison, WI, USA: Soil Science Society of America, 2018. http://dx.doi.org/10.2136/sssabookser5.4.c8.

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Fréchette, V. D. "Newer Techniques in Optical Microscopy." In Advances in Materials Characterization II, 103–12. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4615-9439-0_8.

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Mulvagh, Sharon L. "Newer imaging techniques in contrast echocardiography." In Developments in Cardiovascular Medicine, 473–84. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0291-6_36.

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Sirohi, R. S. "Speckle Metrology: Some Newer Techniques and Applications." In Springer Series in OPTICAL SCIENCES, 318–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-540-48886-6_20.

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Hanson, Kara S., David C. Lewerenz, and Prem S. Subramanian. "Newer Techniques in Vision Restoration and Rehabilitation." In Current Advances in Ophthalmic Technology, 133–51. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-9795-0_9.

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Sumpio, Brandon J., Samuel M. Miller, Erik Benitez, and Bauer E. Sumpio. "Newer Techniques for Assessment of Foot Perfusion." In Limb Salvage of the Diabetic Foot, 243–57. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-17918-6_20.

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Pien, Homer, Synho Do, Sarabjeet Singh, and Mannudeep K. Kalra. "Conventional and Newer Reconstruction Techniques in CT." In Radiation Dose from Multidetector CT, 143–56. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/174_2011_520.

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Walle, J. "Newer Anaesthesiological Techniques and Drugs: Progress or Fallacy?" In Isoflurane, 1–8. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-71230-2_1.

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Bhatia, Deepak N., Gregory I. Bain, and Felix H. Savoie. "Developing and Innovating Newer Techniques in Elbow Surgery." In Arthroscopy and Endoscopy of the Elbow, Wrist and Hand, 1185–88. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-79423-1_131.

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Hoda, Rana S., and Syed A. Hoda. "Screening and Management Guidelines of Pap Test and Newer Techniques." In Fundamentals of Pap Test Cytology, 187–94. Totowa, NJ: Humana Press, 2007. http://dx.doi.org/10.1007/978-1-59745-276-2_19.

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Conference papers on the topic "NEWER TECHNIQUES"

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Amrutha, D. E., and R. Sakthivel. "Certain newer Techniques for Carbon and Climate Change." In 2010 Recent Advances in Space Technology Services and Climate Change (RSTSCC). IEEE, 2010. http://dx.doi.org/10.1109/rstscc.2010.5712873.

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Ealey, Mark A. "Silicon Carbide Mirror Manufacture Processes and Techniques." In Optical Fabrication and Testing. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oft.1992.wb3.

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A new generation of laser mirrors were required which feature more efficient mirror designs fabricated from newer advanced materials, Silicon carbide is a factor of four better in terms of specific stiffness and resistance to thermal distortion, the key parameters for a cooled mirror. In addition silicon carbide is a factor of three better than molybdenum in terms of weight, the critical parameter for a space based optic.
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Marjani, Mehrsa, Moustafa El-Gindy, David Philipps, Fredrik Öijer, and Inge Johansson. "FEA Tire Modeling and Validation Techniques." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-46514.

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Recent advances in power and efficiency of computerized modeling methods has made it easier to develop accurate tire models. These newer models are now created with such accuracy that it has become easy to predict the experimental tire’s behavior and characteristics. These models are helpful with determining tire, tire-road, and tire-soil interaction properties. By creating virtual models, the overall capital for research and development can be reduced as well as replacing unavailable experimental tires for research. This research paper mainly focuses on the validation of computer generated FEA tire models which are then used for the prediction of the experimental tire’s rolling resistance, static and dynamic characteristics. Experimental data, such as rolling resistance and vertical acceleration are used in validation simulations in order to tune the virtual model to match the experimental tire’s behavior. The tire that was used for this research is a six-groove 445/50R22.5 FEA truck tire, which was constructed and validated over the course of this research.
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Narayanan, Aditya, Andy Morris, Catrin M. Davies, and John P. Dear. "Optical Strain Monitoring Techniques." In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78515.

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The Auto-Reference Creep Management and Control (ARCMAC) system is being developed as a technique to evaluate the remaining life of power plant components. The system consists of a pair of Inconel plates with a configuration of silicon nitride (SiN) spheres on them, and a camera system used to take images of the gauge during the component’s deformation. The purpose of the system is to measure the creep strain accumulated by a component at regular intervals, tracking the relative motion of the spheres in order to measure a point-to-point value of strain. The system is currently used to capture images of gauges already installed on power plants in the UK as part of scheduled maintenance during plant outages. It is also possible to use the ARCMAC system to capture speckle paint pattern data used in digital image correlation (DIC) in order to visualise the strain field across the heat affected zones (HAZ) in welds and around other strain concentration features. A newer version of the system: the Digital Single Lens Reflex (DSLR) ARCMAC is being developed specifically to capture this kind of data in order to complement the point-to-point strain measurements obtained. This article presents results of experiments performed at room temperature with the purpose of establishing the basic accuracy of the conventional ARCMAC and the DSLR ARCMAC in order to compare their performance. It also intends to evaluate the performance of the latter when used for digital image correlation. The results showcase the accuracy of the technique at high strains using the DSLR camera, showing its usefulness as a tool to measure creep strain.
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Dalquist, Stephanie, and Timothy Gutowski. "Life Cycle Analysis of Conventional Manufacturing Techniques: Sand Casting." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-62599.

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Conventional manufacturing techniques have not been subject to much scrutiny by industrial ecologists to date. Many newer techniques and products draw more attention as they rise quickly from research to global scales, amplifying their environmental consequences. Despite the presence of new technologies and increased overseas production, casting activity continues to have a strong presence in the US, and represents a stable component in the national economy. Data from the US government, US industry groups, and UK mass balance profiles facilitate an understanding of sand casting and comparison across manufacturing processes. The figures in the US and UK are similar in terms of diversity of metals (where the US is 72%, 13%, 10% and the UK 76%, 13%, 8% for iron, aluminum, and steel, respectively), energy per ton of saleable cast metal (10.1 and 9.3 million Btu/ton in the US and UK), and overall emissions, with notable similarities in benzene and particulate emissions. One notable discrepancy is in sand use, where the US sends to waste 0.5 tons of sand per ton of cast metal, whereas the UK sends 0.25 tons to landfill.
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Muñoz, David. "New strategies in proprioception’s analysis for newer theories about sensorimotor control." In Systems & Design 2017. Valencia: Universitat Politècnica València, 2017. http://dx.doi.org/10.4995/sd2017.2017.6903.

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Abstract Human’s motion and its mechanisms had become interesting in the last years, where the medecine’s field search for rehabilitation methods for handicapped persons. Other fields, like sport sciences, professional or military world, search to distinguish profiles and ways to train them with specific purposes. Besides, recent findings in neuroscience try to describe these mechanisms from an organic point of view. Until now, different researchs had given a model about control motor that describes how the union between the senses’s information allows adaptable movements. One of this sense is the proprioception, the sense which has a quite big factor in the orientation and position of the body, its members and joints. For this reason, research for new strategies to explore proprioception and improve the theories of human motion could be done by three different vias. At first, the sense is analysed in a case-study where three groups of persons are compared in a controlled enviroment with three experimental tasks. The subjects belong to each group by the kind of sport they do: sedentary, normal sportsmen (e.g. athletics, swimming) and martial sportmen (e.g. karate, judo). They are compared thinking about the following hypothesis: “Martial Sportmen have a better proprioception than of the other groups’s subjects: It could be due to the type of exercises they do in their sports as empirically, a contact sportsman shows significantly superior motor skills to the members of the other two groups. The second via are records from encephalogram (EEG) while the experimental tasks are doing. These records are analised a posteriori with a set of processing algorithms to extract characteristics about brain’s activity of the proprioception and motion control. Finally , the study tries to integrate graphic tools to make easy to understand final scientific results which allow us to explore the brain activity of the subjects through easy interfaces (e.g. space-time events, activity intensity, connectivity, specific neural netwoks or anormal activity). In the future, this application could be a complement to assist doctors, researchers, sports center specialists and anyone who must improve the health and movements of handicapped persons. Keywords: proprioception, EEG, assesment, rehabilitation.References: Röijezon, U., Clark, N.C., Treleaven, J. (2015). Proprioception in musculoskeletal rehabilitation. Part 1: Basic science and principles of assessment and clinical interventions. ManualTher.10.1016/j.math.2015.01.008. Röijezon, U., Clark, N.C., Treleaven, J. (2015). Proprioception in musculoskeletal rehabilitation. Part 2: Clinical assessment and intervention. Manual Ther.10.1016/j.math.2015.01.009. Roren, A., Mayoux-Benhamou, M.A., Fayad, F., Poiraudeau, S., Lantz, D., Revel, M. (2008). Comparison of visual and ultrasound based techniques to measure head repositioning in healthy and neck-pain subjects. Manual Ther. 10.1016/j.math.2008.03.002. Hillier, S., Immink, M., Thewlis, D. (2015). Assessing Proprioception: A Systematic Review of Possibilities. Neurorehab. Neural Repair. 29(10) 933–949. Hooper, T.L., James, C.R., Brismée, J.M., Rogers, T.J., Gilbert, K.K., Browne, K.L, Sizer, P.S. (2016). Dynamic Balance as Measured by the Y-Balance Test Is Reduced in Individuals with low Back Pain: A Cross-Sectional Comparative Study. Phys. Ther. Sport,10.1016/j.ptsp.2016.04.006. Zemková, G., Stefániková, G., Muyor, J.M. (2016). Load release balance test under unstable conditions effectivelydiscriminates between physically active and sedentary young adults. Glave, A.P., Didier, J.J., Weatherwax, J., Browning, S.J., Fiaud, Vanessa. (2014). 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Koessler, L., Maillard, L., Benhadid, A., Vignal, J.P., Felblinger, J., Vespignani, H., Braun, M. (2009). Automated cortical projection of EEG: Anatomical correlation via the international 10-10 system. Neuroimage. 10.1016/j.neuroimage.2009.02.006. Jurcak, V., Tsuzuki, Daisuke., Dan, I. (2007). 10/20, 10/10, and 10/5 systems revisited: Their validity as relativehead-surface-based positioning systems. Neuroimage. 10.1016/j.neuroimage.2006.09.024. Chuang, L.Y., Huang, C.J., Hung, T.M. (2013). The differences in frontal midline theta power between successful and unsuccessful basketball free throws of elite basketball players. Int. J. Psychophysiology.10.1016/j.ijpsycho.2013.10.002. Wang, C.H., Tsai, C.L., Tu, K.C., Muggleton, N.G., Juan, C.H., Liang, W.K. (2014). Modulation of brain oscillations during fundamental visuo-spatialprocessing: A comparison between female collegiate badmintonplayers and sedentary controls. Psychol. Sport Exerc. 10.1016/j.psychsport.2014.10.003. Proverbio, A.L., Crotti, N., Manfredi, Mirella., Adomi, R., Zani, A. (2012). Who needs a referee? How incorrect basketball actions are automatically detected by basketball players’ brain. Sci Rep-UK. 10.1038/srep00883. Cheng, M.Y., Hung, C.L., Huang, C.J., Chang, Y.K., Lo, L.C., Shen, C., Hung, T.M. (2015). Expert-novice differences in SMR activity during dart throwing. Biol. Psychol.10.1016/j.biopsycho.2015.08.003. Ring, C., Cooke, A., Kavussanu, M., McIntyre, D., Masters, R. (2014). Investigating the efficacy of neurofeedback training for expeditingexpertise and excellence in sport. Psychol. SportExerc. 10.1016/j.psychsport.2014.08.005. Park, J.L., Fairweather, M.M., Donaldson, D.I. (2015). Making the case for mobile cognition: EEG and sports performance. Neurosci. Biobehav. R. 10.1016/j.neubiorev.2015.02.014. Babiloni, C., Marzano, N., Infarinato, F., Iacoboni, M., Rizza, G. (2009). Neural efficency of experts’ brain during judgement of actions: A high -resolution EEG study in elite and amateur karate athletes. Behav. Brain. Res. 10.1016/j.bbr.2009.10.034. Jain, S., Gourab, K., Schindler-Ivens, S., Schmit, B.D. (2012). EEG during peddling: Evidence for cortical control of locomotor tasks. Clin. Neurophysiol.10.1016/j.clinph.2012.08.021. Behmer Jr., L.P., Fournier, L.R. (2013). Working memory modulates neural efficiency over motor components during a novel action planning task: An EEG study. Behav. Brain. Res. 10.1016/j.bbr.2013.11.031.
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Morris, Andrew, John Dear, Miltiadis Kourmpetis, Alexander Fergusson, and Amit Puri. "Digital Speckle Photogrammetry Techniques Applied to Monitoring High Temperature Steam Pipes." In ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/pvp2006-icpvt-11-93066.

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Digital Speckle Photogrammetry (DSP) is proving to be a very useful technique for studying, in the laboratory, the distribution of strain about cracks and other defects in stressed specimens. This non-contact technique is able to resolve strain gradients over a small physical area, for example across a weld heat affected zone. The technique has good potential for use as a condition monitoring tool for a variety of components in electrical power stations. In addition this measurement technique could also be applied to monitor the integrity of critical components of newer generation plant, such as wind turbine generator blades. There are, however, many installation problems to be overcome. For example, there is the need to have regard for the hostile environment in steam generating plant and the demanding conditions to which wind turbine blades are subjected. Ideally the outputs from individual DSP sensors would be used for continuous remote monitoring. However, DSP measurements can also be useful each time the plant is shut down during a plant outage; which would be used to complement data from existing proven rugged monitoring methods. This paper describes ongoing work to develop a ruggedised digital speckle ‘sensor’ and associated image capture system.
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Kopchok, George E., Carlos Donayre, Massoud Haji-Aghaii, and Rodney A. White. "Catheter Delivered, Endoluminal Grafts for Repair of Abdominal Aortic Aneurysm." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0065.

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Abstract The evolution of endovascular surgery is rapidly expanding the armamentarium available for minimally invasive surgical procedures. This is especially true in the area of aortic aneurysm repair. Endoluminal graft development which began over 20 years ago, was limited by the inability to successfully secure a graft to the arterial wall without the aid of sutures. With the development of the balloon expandable stent by Palmaz, newer devices were developed and tested which led to the first clinical evaluation in 1990. Although the overall results from this series were very good, the deployment techniques, as well as the endoluminal grafts, underwent several refinements which greatly improved their later results.(Parodi et al., 1991) Newer advances, including fully supported, bifurcated endoluminal grafts, are continuing to push the envelope of minimally invasive endoluminal bypass surgery even further. Initial studies described herein suggest that a modular, self expanding device may be effective in the treatment and exclusion of aortic aneurysm.
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Herschbein, Steven, Chad Rue, Carmelo Scrudato, and Edward Hermann. "FIB Chip Repair: Improving Success by Controlling Beam-Induced Damage and Thermal/Mechanical Stress." In ISTFA 2004. ASM International, 2004. http://dx.doi.org/10.31399/asm.cp.istfa2004p0166.

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Abstract Focused Ion Beam (FIB) success has become more difficult as microchip process technology advances, requiring new techniques for damage control both during the microsurgery procedure and before the finished product can be electrically tested. Ultra thin gate dielectrics, shallower junctions, less ‘white space,’ and new materials surrounding active devices all create additional challenges for imaging, targeting, controlling instantaneous charge damage, and the removal of residual implanted charge. On the macro level, global thinning of bulk silicon housed in hybrid packages is causing new problems with thermal management and mechanical stress. Techniques and procedures used to control electrostatic discharge type damage become ever more critical when working on poorly buffered or isolated device elements, especially from the backside. Implanted gallium and residual charge perturb electrical characteristics, and must be dispersed prior to power-up thru carefully controlled bake steps. Left in place, these FIB-induced perturbations are likely to cause poor functionality or even latchup. The mechanical rigidity and thermal dissipation properties of newer, complex package types must also be restored post-FIB, otherwise cracked silicon or a thermal overload event might be the outcome. In this paper, we will attempt to address some of the common causes of FIB-induced failure on newer silicon and package technologies, and how they might be overcome. FIB techniques and preparatory processes must continue to evolve in order to deal effectively with the problems of direct beam damage, residual charge elimination, and sample stress management.
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Chatterjee, Monalisa, Sean Toh, Ahmed Alshmakhy, Yann Bigno, and Paul Hewitt. "Advanced Research and Development in Unconventional Use of Tracer Technology for EOR and IOR: The Gen Z Tracers." In Middle East Oil, Gas and Geosciences Show. SPE, 2023. http://dx.doi.org/10.2118/213436-ms.

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Abstract Over the last few decades, tracers have provided crucial insights on fluid flow behavior assessing reservoir connectivity. For years, they had been viewed as mostly passive molecules that go with the flow of the injected fluid and uncover pathways between injectors and producers. The proposed paper sheds light on some interesting newer frontiers of tracer applications with unconventional uses to gain further flow insight from an oil and gas reservoir. Although primarily developed for interwell applications, newer and more sophisticated genres of tracers have found their way to assist with well fluid flow behavior. Inflow tracer applications, used for phase flow diagnostics, have been around for a few decades now. However, with several parameters like physical space restrictions, temperature, solid support selection, multi-phase flow, initial surge and target concentrations at play, it was soon realised that an extended lifetime was needed to provide techno-economic benefits during reservoir monitoring. Microencapsulation of tracer molecules is one of the newer developed techniques that has shown significant extension to tracer life in controlled release tracer applications as well as improved dispersibility within fracking fluid. Newer synthesis mechanisms like microencapsulation have been developed to linearize inflow tracer release profiles that has led to a substantial increase in tracer lifetime. As the research and development progressed, newer tracers such as frac bead tracers were developed allowing long term fluid flowback monitoring in fracture stimulated wells. In parallel, it is still an active field of investigation as to how tracers can be integrated with common downhole completion and topside equipment of a well to accurately detect early water breakthrough. The paper discusses the advances in these target areas where chemistry is constantly being upgraded to suit end user needs. Novel applications and ‘out-of-the-box’ uses have been developed in the last couple of years where inflow tracers have found a modified use within the gas lift system in a well and integrated with the top-side flow arm of the well, eradicating the need for individual sampling of wells and detection of water breakthrough at an early onset, thus aiding timely decision making and improved recovery from the well. Real time analysis of tracers have attracted attention for quite some time now. The paper also discusses the latest development in this area and the challenges associated with real field applications. While advancements in versatility of the tracer molecules have been published prior in literature, to the best of the authors’ knowledge, no work has been published to date that discusses the latest advances in unconventional uses of the tracer molecules aiding EOR and IOR processes.
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Reports on the topic "NEWER TECHNIQUES"

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Sinclair, Samantha, and Sandra LeGrand. Reproducibility assessment and uncertainty quantification in subjective dust source mapping. Engineer Research and Development Center (U.S.), August 2021. http://dx.doi.org/10.21079/11681/41523.

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Accurate dust-source characterizations are critical for effectively modeling dust storms. A previous study developed an approach to manually map dust plume-head point sources in a geographic information system (GIS) framework using Moderate Resolution Imaging Spectroradiometer (MODIS) imagery processed through dust-enhancement algorithms. With this technique, the location of a dust source is digitized and recorded if an analyst observes an unobscured plume head in the imagery. Because airborne dust must be sufficiently elevated for overland dust-enhancement algorithms to work, this technique may include up to 10 km in digitized dust-source location error due to downwind advection. However, the potential for error in this method due to analyst subjectivity has never been formally quantified. In this study, we evaluate a version of the methodology adapted to better enable reproducibility assessments amongst multiple analysts to determine the role of analyst subjectivity on recorded dust source location error. Four analysts individually mapped dust plumes in Southwest Asia and Northwest Africa using five years of MODIS imagery collected from 15 May to 31 August. A plume-source location is considered reproducible if the maximum distance between the analyst point-source markers for a single plume is ≤10 km. Results suggest analyst marker placement is reproducible; however, additional analyst subjectivity-induced error (7 km determined in this study) should be considered to fully characterize locational uncertainty. Additionally, most of the identified plume heads (> 90%) were not marked by all participating analysts, which indicates dust source maps generated using this technique may differ substantially between users.
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Sinclair, Samantha, and Sandra LeGrand. Reproducibility assessment and uncertainty quantification in subjective dust source mapping. Engineer Research and Development Center (U.S.), August 2021. http://dx.doi.org/10.21079/11681/41542.

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Accurate dust-source characterizations are critical for effectively modeling dust storms. A previous study developed an approach to manually map dust plume-head point sources in a geographic information system (GIS) framework using Moderate Resolution Imaging Spectroradiometer (MODIS) imagery processed through dust-enhancement algorithms. With this technique, the location of a dust source is digitized and recorded if an analyst observes an unobscured plume head in the imagery. Because airborne dust must be sufficiently elevated for overland dust-enhancement algorithms to work, this technique may include up to 10 km in digitized dust-source location error due to downwind advection. However, the potential for error in this method due to analyst subjectivity has never been formally quantified. In this study, we evaluate a version of the methodology adapted to better enable reproducibility assessments amongst multiple analysts to determine the role of analyst subjectivity on recorded dust source location error. Four analysts individually mapped dust plumes in Southwest Asia and Northwest Africa using five years of MODIS imagery collected from 15 May to 31 August. A plume-source location is considered reproducible if the maximum distance between the analyst point-source markers for a single plume is ≤10 km. Results suggest analyst marker placement is reproducible; however, additional analyst subjectivity-induced error (7 km determined in this study) should be considered to fully characterize locational uncertainty. Additionally, most of the identified plume heads (> 90%) were not marked by all participating analysts, which indicates dust source maps generated using this technique may differ substantially between users.
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3

Pell, Eva J., Sarah M. Assmann, Amnon Schwartz, and Hava Steinberger. Ozone Altered Stomatal/Guard Cell Function: Whole Plant and Single Cell Analysis. United States Department of Agriculture, December 2000. http://dx.doi.org/10.32747/2000.7573082.bard.

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Original objectives (revisions from original proposal are highlighted) 1. Elucidate the direct effects O3 and H2O2 on guard cell function, utilizing assays of stomatal response in isolated epidermal peels and whole cell gas exchange. 2. Determine the mechanistic basis of O3 and H2O2 effects on the plasma membrane through application of the electrophysiological technique of patch clamping to isolated guard cells. 3. Determine the relative sensitivity of Israeli cultivars of economically important crops to O3 and determine whether differential leaf conductance responses to O3 can explain relative sensitivity to the air pollutant: transfer of technological expertise to Israel. Background to the topic For a long time O3 has been known to reduce gas exchange in plants; it has however been unclear if O3 can affect the stomatal complex directly. Ion channels are essential in stomatal regulation, but O3 has never before been shown to affect these directly. Major conclusions, solution, achievements 1. Ozone inhibits light-induced stomatal opening in epidermal peels isolated from Vicia faba, Arabidopsis thaliana and Nicotiana tabacum in V. faba plants this leads to reduced assimilation without a direct effect on the photosynthetic apparatus. Stomatal opening is more sensitive to O3 than stomatal closure. 2. Ozone causes inhibition of inward K+ channels (involved in stomatal opening) while no detectable effect is observed o the outward K+ channels (stomatal closure). 3. Hydrogen peroxide inhibits stomatal opening and induces stomatal closure in epidermal peels isolated from Vicia faba. 4. Hydrogen peroxide enhances stomatal closure by increasing K+ efflux from guard cells via outward rectifying K+ channels. 5. Based on epidermal peel experiments we have indirectly shown that Ca2+ may play a role in the guard cell response to O3. However, direct measurement of the guard cell [Ca2+]cyt did not show a response to O3. 6. Three Israeli cultivars of zucchini, Clarita, Yarden and Bareqet, were shown to be relatively sensitive to O3 (0.12 ml1-1 ). 7. Two environmentally important Israeli pine species are adversely affected by O3, even at 0.050 ml1-1 , a level frequently exceeded under local tropospheric conditions. P. brutia may be better equipped than P. halepensis to tolerate O3 stress. 8. Ozone directly affects pigment biosynthesis in pine seedlings, as well as the metabolism of O5 precursors, thus affecting the allocation of resources among various metabolic pathways. 9. Ozone induces activity of antioxidant enzymes, and of ascorbate content i the mesophyll and epidermis cells of Commelina communis L. Implications, both scientific and agricultural We have improved the understanding of how O3 and H2O2 do affect guard cell and stomatal function. We have shown that economical important Israeli species like zucchini and pine are relatively sensitive to O3.
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Analyses of rare earth element and uranium mineralization in Bokan Mountain archive sample splits: Reevaluation of older data (1984-1987) with newer analytical techniques. Alaska Division of Geological & Geophysical Surveys, 2010. http://dx.doi.org/10.14509/20601.

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Treating low grade piles with a newer surgical technique leads to less recurrence than rubber band ligation. National Institute for Health Research, October 2016. http://dx.doi.org/10.3310/signal-000314.

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