Relevant bibliographies by topics / IFR navigation

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

Academic literature on the topic 'IFR navigation'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "IFR navigation"

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GERATOWSKI, Michał, and Mateusz SOBALA. "Conducting IFR flights without the use of conventional navigation AIDS at the uncontrolled aerodromes." Scientific Journal of Silesian University of Technology. Series Transport 90 (March 1, 2016): 47–62. http://dx.doi.org/10.20858/sjsutst.2016.90.5.

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Kumar, Priyadarshi Biplab, Dayal R. Parhi, and Chinmaya Sahu. "An approach to optimize the path of humanoid robots using a hybridized regression-adaptive particle swarm optimization-adaptive ant colony optimization method." Industrial Robot: the international journal of robotics research and application 46, no. 1 (2019): 104–17. http://dx.doi.org/10.1108/ir-10-2018-0204.

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PurposeWith enhanced use of humanoids in demanding sectors of industrial automation and smart manufacturing, navigation and path planning of humanoid forms have become the centre of attraction for robotics practitioners. This paper aims to focus on the development and implementation of a hybrid intelligent methodology to generate an optimal path for humanoid robots using regression analysis, adaptive particle swarm optimization and adaptive ant colony optimization techniques.Design/methodology/approachSensory information regarding obstacle distances are fed to the regression controller, and an interim turning angle is obtained as the initial output. Adaptive particle swarm optimization technique is used to tune the governing parameter of adaptive ant colony optimization technique. The final output is generated by using the initial output of regression controller and tuned parameter from adaptive particle swarm optimization as inputs to the adaptive ant colony optimization technique along with other regular inputs. The final turning angle calculated from the hybrid controller is subsequently used by the humanoids to negotiate with obstacles present in the environment.FindingsAs the current investigation deals with the navigational analysis of single as well as multiple humanoids, a Petri-Net model has been combined with the proposed hybrid controller to avoid inter-collision that may happen in navigation of multiple humanoids. The hybridized controller is tested in simulation and experimental platforms with comparison of navigational parameters. The results obtained from both the platforms are found to be in coherence with each other. Finally, an assessment of the current technique with other existing navigational model reveals a performance improvement.Research limitations/implicationsThe proposed hybrid controller provides satisfactory results for navigational analysis of single as well as multiple humanoids. However, the developed hybrid scheme can also be attempted with use of other smart algorithms.Practical implicationsHumanoid navigation is the present talk of the town, as its use is widespread to multiple sectors such as industrial automation, medical assistance, manufacturing sectors and entertainment. It can also be used in space and defence applications.Social implicationsThis approach towards path planning can be very much helpful for navigating multiple forms of humanoids to assist in daily life needs of older adults and can also be a friendly tool for children.Originality/valueHumanoid navigation has always been tricky and challenging. In the current work, a novel hybrid methodology of navigational analysis has been proposed for single and multiple humanoid robots, which is rarely reported in the existing literature. The developed navigational plan is verified through testing in simulation and experimental platforms. The results obtained from both the platforms are assessed against each other in terms of selected navigational parameters with observation of minimal error limits and close agreement. Finally, the proposed hybrid scheme is also evaluated against other existing navigational models, and significant performance improvements have been observed.
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l Reweti, Savern, Andrew Gilbey, and Lynn Jeffrey. "Efficacy of Low-Cost PC-Based Aviation Training Devices." Journal of Information Technology Education: Research 16 (2017): 127–42. http://dx.doi.org/10.28945/3682.

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Aim/Purpose: The aim of this study was to explore whether a full cost flight training device (FTD) was significantly better for simulator training than a low cost PC-Based Aviation Training Device (PCATD). Background: A quasi-transfer study was undertaken to ascertain whether a Civil Aviation Authority certified Flight Training Device (FTD) was more effective at improving pilot proficiency in the performance of a standard VFR traffic pattern (Overhead Rejoin Procedure) than a customised low cost PCATD. Methodology: In this quasi-transfer study, a high fidelity FTD rather than an aircraft was used to test both training and transfer tasks. Ninety-three pilots were recruited to participate in the study. Contribution: The use of PCATDs is now well established for pilot training, especially for Instrument Flight Rules (IFR) skills training. However, little substantive research has been undertaken to examine their efficacy for VFR training. Findings: There was no evidence of a pre-test/post-test difference in VFR task perfor-mance between participants trained on the PCATD and the FTD, when post tested on the FTD. The use of both PCATD and FTD demonstrated signifi-cant improvements in VFR task performance compared to a control group that received no PCATD or FTD training. Recommendations for Practitioners : We discuss the possibility that low cost PCATDs may be a viable alternative for flight schools wishing to use a flight simulator but not able to afford a FTD. Recommendation for Researchers: We discuss the introduction of improved low cost technologies that allow PCATDs to be used more effectively for training in VFR procedures. The development and testing of new technologies requires more research. Impact on Society: Flight training schools operate in a difficult economic environment with continued increases in the cost of aircraft maintenance, compliance costs, and aviation fuel. The increased utilisation of low cost PCATD’s especially for VFR instruction could significantly reduce the overall cost of pilot training Future Research: A new study is being undertaken to compare the effectiveness of a PCATD and a FTD at training transfer of other VFR task procedures such as forced landing training, forced landing after take-off, and low-level navigation exercises.
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Patle, Bhumeshwar, Shyh-Leh Chen, Brijesh Patel, Sunil Kumar Kashyap, and Sudarshan Sanap. "Topological drone navigation in uncertain environment." Industrial Robot: the international journal of robotics research and application 48, no. 3 (2021): 423–41. http://dx.doi.org/10.1108/ir-10-2020-0218.

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Purpose With the increasing demand for surveillance and smart transportation, drone technology has become the center of attraction for robotics researchers. This study aims to introduce a new path planning approach to drone navigation based on topology in an uncertain environment. The main objective of this study is to use the Ricci flow evolution equation of metric and curvature tensor over angular Riemannian metric, and manifold for achieving navigational goals such as path length optimization at the minimum required time, collision-free obstacle avoidance in static and dynamic environments and reaching to the static and dynamic goals. The proposed navigational controller performs linearly and nonlinearly both with reduced error-based objective function by Riemannian metric and scalar curvature, respectively. Design/methodology/approach Topology and manifolds application-based methodology establishes the resultant drone. The trajectory planning and its optimization are controlled by the system of evolution equation over Ricci flow entropy. The navigation follows the Riemannian metric-based optimal path with an angular trajectory in the range from 0° to 360°. The obstacle avoidance in static and dynamic environments is controlled by the metric tensor and curvature tensor, respectively. The in-house drone is developed and coded using C++. For comparison of the real-time results and simulation results in static and dynamic environments, the simulation study has been conducted using MATLAB software. The proposed controller follows the topological programming constituted with manifold-based objective function and Riemannian metric, and scalar curvature-based constraints for linear and nonlinear navigation, respectively. Findings This proposed study demonstrates the possibility to develop the new topology-based efficient path planning approach for navigation of drone and provides a unique way to develop an innovative system having characteristics of static and dynamic obstacle avoidance and moving goal chasing in an uncertain environment. From the results obtained in the simulation and real-time environments, satisfactory agreements have been seen in terms of navigational parameters with the minimum error that justifies the significant working of the proposed controller. Additionally, the comparison of the proposed navigational controller with the other artificial intelligent controllers reveals performance improvement. Originality/value In this study, a new topological controller has been proposed for drone navigation. The topological drone navigation comprises the effective speed control and collision-free decisions corresponding to the Ricci flow equation and Ricci curvature over the Riemannian metric, respectively.
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Khalilullah, K. M. Ibrahim, Shunsuke Ota, Toshiyuki Yasuda, and Mitsuru Jindai. "Road area detection method based on DBNN for robot navigation using single camera in outdoor environments." Industrial Robot: An International Journal 45, no. 2 (2018): 275–86. http://dx.doi.org/10.1108/ir-08-2017-0139.

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Purpose The purpose of this study is to develop a cost-effective autonomous wheelchair robot navigation method that assists the aging population. Design/methodology/approach Navigation in outdoor environments is still a challenging task for an autonomous mobile robot because of the highly unstructured and different characteristics of outdoor environments. This study examines a complete vision guided real-time approach for robot navigation in urban roads based on drivable road area detection by using deep learning. During navigation, the camera takes a snapshot of the road, and the captured image is then converted into an illuminant invariant image. Subsequently, a deep belief neural network considers this image as an input. It extracts additional discriminative abstract features by using general purpose learning procedure for detection. During obstacle avoidance, the robot measures the distance from the obstacle position by using estimated parameters of the calibrated camera, and it performs navigation by avoiding obstacles. Findings The developed method is implemented on a wheelchair robot, and it is verified by navigating the wheelchair robot on different types of urban curve roads. Navigation in real environments indicates that the wheelchair robot can move safely from one place to another. The navigation performance of the developed method and a comparison with laser range finder (LRF)-based methods were demonstrated through experiments. Originality/value This study develops a cost-effective navigation method by using a single camera. Additionally, it utilizes the advantages of deep learning techniques for robust classification of the drivable road area. It performs better in terms of navigation when compared to LRF-based methods in LRF-denied environments.
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Tang, S. J., Q. Zhu, W. W. Wang, and Y. T. Zhang. "AUTOMATIC TOPOLOGY DERIVATION FROM IFC BUILDING MODEL FOR IN-DOOR INTELLIGENT NAVIGATION." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-4/W5 (May 11, 2015): 7–11. http://dx.doi.org/10.5194/isprsarchives-xl-4-w5-7-2015.

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With the goal to achieve an accuracy navigation within the building environment, it is critical to explore a feasible way for building the connectivity relationships among 3D geographical features called in-building topology network. Traditional topology construction approaches for indoor space always based on 2D maps or pure geometry model, which remained information insufficient problem. Especially, an intelligent navigation for different applications depends mainly on the precise geometry and semantics of the navigation network. The trouble caused by existed topology construction approaches can be smoothed by employing IFC building model which contains detailed semantic and geometric information. In this paper, we present a method which combined a straight media axis transformation algorithm (S-MAT) with IFC building model to reconstruct indoor geometric topology network. This derived topology aimed at facilitating the decision making for different in-building navigation. In this work, we describe a multi-step deviation process including semantic cleaning, walkable features extraction, Multi-Storey 2D Mapping and S-MAT implementation to automatically generate topography information from existing indoor building model data given in IFC.
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Abou Diakité, Abdoulaye, and Sisi Zlatanova. "Valid Space Description in BIM for 3D Indoor Navigation." International Journal of 3-D Information Modeling 5, no. 3 (2016): 1–17. http://dx.doi.org/10.4018/ij3dim.2016070101.

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The BIM paradigm, supplied by appropriate standards like IFC, became unavoidable in recent construction projects. Several applications (e.g. indoor navigation, energy analysis ...) find in it a source of information on which they can rely. However, practices reveal that BIM models are not always directly reliable for applications and the latter have to ensure the validity of the data by their own. In the case of indoor navigation, the calculations will highly rely on the IfcSpace objects describing the rooms, in addition to their spatial relationships with their surrounding components. Unfortunately, it is common to face IFC models in which IfcSpace objects contain wrong geometric and topological description. In this paper, the authors discuss the issues related to BIM models validation for indoor navigation. Furthermore, they present a method to generate valid indoor spaces in IFC models. The approach relies on the structural components of the building (walls, slabs, etc.) and uses topological operations, supported by the combinatorial map data structure, to produce watertight space volumes.
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Tian, Yumiao. "Refinement of GLONASS Phase Inter-Frequency Biases and Their Applications on Single-Epoch Ambiguity Fixing." Journal of Navigation 73, no. 3 (2019): 530–46. http://dx.doi.org/10.1017/s037346331900078x.

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Carrier-phase inter-frequency bias (IFB) exists in GLObal NAvigation Satellite System (GLONASS) baselines when receivers of different brands are used. Those biases need to be calibrated in GLONASS data processing to derive precise fixed solutions. Consequently, the accuracy of the IFB calibration affects ambiguity fixing, and low-accuracy IFB values in the calibration will degrade the positioning results. Hitherto, at least two IFB rate value sets for various receiver brands have been given in previous studies. Some of the differences between the value sets exceed 2 mm/FN (frequency number) and the effects of those differences on ambiguity fixing have not been investigated until now. This study showed that ambiguity fixing in GLONASS single-epoch positioning is very sensitive to the accuracy of the IFB rates. Even errors of millimetres can seriously lower the empirical success rate. The short baselines from the Global Navigation Satellite System (GNSS, which includes Russian GLONASS) networks of the International GNSS Service and the Regional Reference Frame Sub-Commission for Europe were employed to obtain more accurate IFB rate estimates with the proposed two-dimensional particle filtering. Afterwards, the IFB estimates were statistically refined by the least-squares method. Experiments showed that when the refined IFB rates were used in the IFB calibration, the empirical success rates of ambiguity fixing in GLONASS single-epoch positioning were largely improved compared with the values given before, improvements such as 20·6% for a Septentrio and Leica receiver combination.
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Lichoń, Daniel, and Marek Orkisz. "Models of the Reference Departure and Arrival IFR Procedures for the Purpose of Research in RPAS Integration in Controlled Airspace." Journal of KONES 26, no. 3 (2019): 121–28. http://dx.doi.org/10.2478/kones-2019-0065.

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Abstract The air operations in controlled airspace performed according to Instrument Flight Rules (IFR) are composed of three main flight phases, i.e. departure, cruise, arrival. Controlled airspace is divided into the terminal area and en-route airspace. The terminal area encloses the departure and arrival phases while the en-route airspace encloses the cruise phase. The IFR procedures are designed for manned aviation to ensure the safety of air operations. Development of the aviation concerns among others the increase in the number of unmanned aviation operations. Currently, on the European level, there is an on-going, long-term program of integration of the unmanned aviation in the uniform (non-segregated) airspace. This work concerns the research in the integration of the Remotely Piloted Aircraft Systems (RPAS) in the IFR procedures of the controlled airports. The objective was to build the reference models of Standard Instrument Departure and Arrival Procedures (SID and STAR). Basing on the procedure design guidelines the models of procedural nominal track, tolerance area, obstacle clearance area, climb or descend gradient, manoeuvres in SID and STAR were done. The guidelines describe the operational minima thus the statistics of existing procedures was done to select the suitable procedure parameters such as a number of navigational points, segments lengths, altitudes, climb or descent gradients. Reference models of SID include straight departure and turning departure procedures. Reference models of STAR include non-precision approach procedures according to used navigational aids, i.e. GNSS, VOR. The reference procedures were numerically implemented which will be used in the further works on RPAS integration problem by simulations of the RPAS ability to execute of the SID and STAR.
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Rodriguez, Simon, Siddhant Prakash, Peter Hedman, and George Drettakis. "Image-Based Rendering of Cars using Semantic Labels and Approximate Reflection Flow." Proceedings of the ACM on Computer Graphics and Interactive Techniques 3, no. 1 (2020): 1–17. http://dx.doi.org/10.1145/3384535.

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Image-Based Rendering (IBR) has made impressive progress towards highly realistic, interactive 3D navigation for many scenes, including cityscapes. However, cars are ubiquitous in such scenes; multi-view stereo reconstruction provides proxy geometry for IBR, but has difficulty with shiny car bodies, and leaves holes in place of reflective, semi-transparent windows on cars. We present a new approach allowing free-viewpoint IBR of cars based on an approximate analytic reflection flow computation on curved windows. Our method has three components: a refinement step of reconstructed car geometry guided by semantic labels, that provides an initial approximation for missing window surfaces and a smooth completed car hull; an efficient reflection flow computation using an ellipsoid approximation of the curved car windows that runs in real-time in a shader and a reflection/background layer synthesis solution. These components allow plausible rendering of reflective, semi-transparent windows in free viewpoint navigation. We show results on several scenes casually captured with a single consumer-level camera, demonstrating plausible car renderings with significant improvement in visual quality over previous methods.
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Dissertations / Theses on the topic "IFR navigation"

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Hvězda, Michal. "Model systému automatického řízení přesného přiblížení a přistání civilního dopravního letadla za použití informací DGNSS." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-438882.

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LPV approaches are being published in the Czech Republic nowadays. Their usage is enabled by the EGNOS European satellite augmentation system. However, published decision heights do not allow equivalence with the ILS CAT I precision approach yet. This work presents the model of automated control of aircraft precision approach. Verification of its functionality shows that applicable airspace requirements can be fulfilled for lower values of decision heights than values already published. The model is developed using contemporary methods of model-based development in the tool supporting common processing of both continuous and discrete signals. Although model architecture follows the structure of commonly used ILS system in definition of coordinate system and in establishing control in two separate directions it allows curved approach. Usage of digital navigation data provided by satellite system opens further opportunities in its usage, expansion and improvements. Model functionality in control of flight course, position and height control is verified in the scenarios covering detailed thesis goals. The goals were defined based on definition of precision approach process and include navigation signal drop-out, impact of wind, various flight path angles and curved approach. Analysis of behavior of controlled aircraft dynamics was a stimulator for research of specific system modules up to the application level, i.e. specific simulations of successful precision approaches.
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Cronin, Kerry. "Making the move: Navigating dating transitions." The Church in the 21st Century Center at Boston College, 2014. http://hdl.handle.net/2345/bc-ir:103957.

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Rolland, Yves. "Le transport de marchandises sur le Rhône et la Saône à l’époque romaine (Ier s. av. – IVe s. ap. J.-C.) : paramètres, conditions et possibilités de la navigation." Thesis, Lyon 2, 2014. http://www.theses.fr/2014LYO20132.

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Le Rhône, prolongé de la Saône, forme un axe de pénétration à l’intérieur de la Gaule emprunté à l’époque romaine pour mettre en relation la Méditerranée avec le nord de l’empire. De brèves connections terrestres (portages) permettaient de poursuivre les échanges vers les bassins de la Loire, de la Seine, du Rhin et les lacs alpins. Seul le quart sud-ouest semble avoir échappé à l’influence rhodanienne. Ce corridor formait très clairement l’artère majeure du réseau fluvial gaulois, et cela avant-même la conquête romaine. La voie fluviale était à l’époque le principal vecteur de transport de marchandises à l’intérieur des terres, et cela jusqu’à l’arrivée du chemin de fer. Le Rhône et la Saône auraient détenu à eux seuls près de la moitié du trafic fluvial de toute la Gaule. Ces cours ont par ailleurs clairement contribué au développement des villes riveraines correspondant souvent à des haltes fluviales et des nœuds de redistribution. L’intérêt du sujet est donc de toute première importance. Les intentions de ce travail sont triples. Tout d’abord, présenter une synthèse de la navigation du Rhône et de la Saône actualisée des grandes séries de découvertes des années 2000 (épaves lyonnaises et arlésiennes) ; ensuite réhabiliter l’image du « marin d’eau douce » antique qui souffre d’un double a priori, l’archaïsme technique antique, et la facilité de la navigation en milieu fluvial ; enfin, l’intention principale est de montrer les spécificités de la navigation sur le Rhône et la Saône à l’ époque romaine. Pour y parvenir nous procédons en trois temps. Une première partie consacrée aux paramètres de la navigation (marchandises, emballages, embarcations, corporations, milieu fluvial) permettant de cerner en détail les différentes variables de la question. Une seconde partie est dédiée aux conditions de la navigation (conditions climatiques, conditions morphologiques – tirant d’eau, tirant d’air – conditions dynamiques – modes de propulsion autorisés –, conditions juridiques, religieuses, risque d’attaque, etc.). La dernière partie est consacrée aux possibilités de la navigation. Il s’agit en fait d’un outil permettant de simuler des situations de transport. Le lecteur a la possibilité de « composer » un scénario de transport en sélectionnant les variables de la première partie, et en le confrontant aux conditions de navigation de l’axe fluvial défini en seconde partie. Ainsi, il est possible de prendre position sur un certain nombre de sujet comme la remonte du fleuve à la rame ou à la voile, les tirants d’eau autorisés, la présence des navires maritimes ou des navires à dolia en amont d’Arles, les moments propices à la navigation pour les chalands, les vitesses et les temps de transport, etc<br>The Rhone River, in conjunction with its tributary the Saone River, form an axis of penetration inside the Gaul used during the Roman period to link the Mediterranean sea to the north of the empire. Short land connections enabled the trades to flourish over the basins of the Loire, the Seine, the Rhine and the alpine lakes. Short land connections have allowed the pursuit of the trades over the basins of the Loire, the Seine, the Rhine and the alpine lakes. Only the southwest quarter seems to have escaped the influence of the Rhone. This corridor formed the major artery of the Gallic river network, even before the Roman conquest. The waterway at the time was the primary means for transporting goods inland, up until the arrival of the railway. The Rhône and Saone rivers alone would have conveyed nearly half of river traffic of all Gaul. These waterways have also clearly contributed to the development of riverside towns often corresponding to river stops and points of cargo redistribution. The interest of the subject is of paramount importance. The intention of this work is threefold. First, provide an overview of the navigation of the Rhone and the Saone as evidenced by series of discoveries of the 2000s (Lyon and Arles wrecks) ; then disprove two commonly held misconceptions of the Roman "landlubber": the use of archaic navigation technique and the ease of the river environment. Finally, the main intention is to show the specifics of navigation on the Rhone and Saone in Roman times. This will be covered in three parts. A first part related to the navigation parameters (goods, packaging, crafts, corporations, river environment) to identify in detail the characteristics and issues related to each of them. A second part is dedicated to given navigation conditions : weather, boat morphology (draft, air-draft), dynamic conditions (possible propulsions), legal and religious conditions, risk of attack, etc. Based on the navigation parameters and navigation conditions presented, the last part describes the possibilities of navigation that were offered at that period. It is a tool to simulate transport situations. The reader has the option to "compose" a transport scenario by selecting the parameters of the first part, and by confronting them to the navigation conditions of the fluvial axis defined in the second part. In the end, it is possible to to give answers to several questions such as the use of oar or sail against the current, the possible drafts that could be used, the presence of marine ships or dolia ships upstream of Arles, the most favorable conditions to barge navigation, the speed or travel time
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Stallkamp, Jan [Verfasser]. "Optisches 3D-Messverfahren für die Navigation in der roboterassistierten minimal-invasiven Chirurgie / Universität Stuttgart, IFF, Institut für Industrielle Fertigung und Fabrikbetrieb ... Jan Stallkamp." Heimsheim : Jost-Jetter, 2005. http://d-nb.info/976190060/34.

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Kelly, Corey Rose. "Navigating Complexity: The Challenging Role of Title IX Coordinators in Campus Sexual Assault." Thesis, Boston College, 2019. http://hdl.handle.net/2345/bc-ir:108367.

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Thesis advisor: Heather T. Rowan-Kenyon<br>The purpose of this study on university handling of Campus Sexual Assault (CSA) was to understand the experiences of Title IX Coordinators as key administrators in this work. CSA continues to be a pervasive problem, and the dialogue on campuses and externally is highly contentious. Guidance from the federal government, combined with a recent surge in lawsuits against universities, have created a precarious legal context for CSA that is exceedingly difficult for universities to manage. How institutions handle the array of moving parts with CSA is largely absent from the current literature. This study interviewed university Title IX Coordinators, who are responsible for overseeing the institutional response to CSA and therefore are uniquely positioned to offer insight into how universities are handling the problem and the internal and external factors that are playing a role. Sixteen interviews were conducted of Title IX Coordinators responsible for overseeing student CSA matters at NCAA Division I institutions. The research questions guiding this study included: (a) how do Title IX Coordinators handle and carry out their responsibilities related to CSA; what shapes the ways in which Title IX Coordinators handle their responsibilities related to CSA, and (b) how does university culture influence Title IX Coordinators’ work related to CSA? The theory that emerged from the data indicates that Title IX Coordinators have an array of complexities to navigate in their CSA work, stemming from an interplay of both internal and external pressures and factors, that can lead to a range of outcomes that are most often negative. Using grounded theory methodological procedures, a theory and visual model were generated to explain the interactions among the following components: Title IX Coordinator values and priorities; processes involved in CSA work; university culture and structure; collaboration with and management of university partners; the legal landscape and external context; and case outcomes and Title IX Coordinator impact. The theory has implications for policy, for Title IX Coordinators and universities, and for future research<br>Thesis (PhD) — Boston College, 2019<br>Submitted to: Boston College. Lynch School of Education<br>Discipline: Educational Leadership and Higher Education
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Morales-Thomason, Josie. "On the Lived Experiences of Latina Undergraduate Students : Navigating Identity, Culture, and Beauty." Thesis, Boston College, 2021. http://hdl.handle.net/2345/bc-ir:109132.

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Thesis advisor: Sharlene Hesse-Biber<br>This study contributes to and expands upon the existing literature regarding the development of cultural, ethnic, and racial identities as it relates to societal beauty standards. Through conducting nine individual interviews, this qualitative research aims to gain subjugated knowledge regarding the lived experiences of Latina women attending a predominantly white university. Using an intersectional framework, I incorporate theories of social identification, self-categorization, acculturation, and beauty standards. I deploy feminist principles of praxis and utilize a grounded theory approach in my data collection and analysis. My analysis of the data revealed seven major themes: the role of the family, messages about beauty, feeling caught between two spheres, understanding larger social forces, external pressures to identify, creating space for oneself, and defining beauty. The study suggests that despite struggling with elements of ethnic, cultural, and racial identities, the women interviewed ultimately grow to accept and embrace difference, finding value and pride in their identities and experiences. The findings of this study may be of importance to university leaders who seek to better understand ways in which to support this demographic, as well as to other Latina undergraduates who feel isolated in their struggles with identity and beauty standards<br>Thesis (BA) — Boston College, 2021<br>Submitted to: Boston College. College of Arts and Sciences<br>Discipline: Departmental Honors<br>Discipline: Scholar of the College<br>Discipline: Sociology
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Duncan, Brittany. "Navigating Sex in College: A qualitative exploration of college students’ views on hookup culture and sexual assault." Thesis, Boston College, 2016. http://hdl.handle.net/2345/bc-ir:106738.

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Thesis advisor: Paul Gray<br>The prevalence of sexual assaults on college campuses has been gaining more attention in recent years. Through 16 undergraduate interviews with both male and female students, college students’ attitudes about hookup culture, the role of sexual consent, and issues that they see surrounding college campus sexual assault were explored. Students felt as though they were not responsible for their own decisions; failed to empathize with, and often objectified, fellow students; expressed a problematic distinction between sexual assault and rape; and voiced a pressure to act in accordance with traditional gender norms. There needs to be a shift in the way college students are introduced to college including frank conversation among students about the impact their actions can have on their peers and themselves<br>Thesis (BA) — Boston College, 2016<br>Submitted to: Boston College. College of Arts and Sciences<br>Discipline: Departmental Honors<br>Discipline: Sociology
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Haider, Maheen. "Keepers and explorers: An acculturation case study of the multi-faceted identity of Pakistani graduate students navigating US culture." Thesis, Boston College, 2013. http://hdl.handle.net/2345/bc-ir:104074.

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Thesis advisor: Eve Spangler<br>Thesis advisor: Clifton Shawn Mcguffey<br>The research explores the influence of US culture on Pakistani graduate students studying in the US. I investigate how the students navigate through the different elements of US culture, while adhering to their pre-existing ideals of the home culture. I examine the role of gender and inter-generational differences of the students, in the process of interaction with the host culture. I use qualitative methods and conducted twenty-eight life history interviews across the students from both F1 and J1 visa categories, while maintaining the gender ratio. The duration of their stay spans over a period of 5 months to 5 years. I argue that the students adopt a keepers and explorers approach while navigating the different cultural elements of the host culture. The explorer approach is further facilitated by a select and drop mechanism, developed by the students, as they navigate the different elements of US culture, while using the value system of the home society<br>Thesis (MA) — Boston College, 2013<br>Submitted to: Boston College. Graduate School of Arts and Sciences<br>Discipline: Sociology
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Mills, James Christopher. "Proposed IFR air ambulance coverage for Middle and East Tennessee." 2003. http://etd.utk.edu/2003/MillsJamesChristopher.pdf.

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Thesis (M.S.)--University of Tennessee, Knoxville, 2003.<br>Title from title page screen (viewed Oct. 14, 2003). Thesis advisor: Ralph Kimberlin. Document formatted into pages (x, 64 p. : ill. (some col.), col. maps). Vita. Includes bibliographical references (p. 58-63).
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Mires, James Robert. "A Compliance Strategy for Use of GPS for IFR Navigation in the E-2C Hawkeye." 2007. http://trace.tennessee.edu/utk_gradthes/312.

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Naval aviation is on the brink of taking advantage of a 12 year old capability. Naval commercial derivative aircraft have had the ability to navigate in instrument meteorological conditions using global positioning technology for nearly as long as civil commercial-for-hire aircraft. However, tactical naval aircraft, like the E-2C Hawkeye, are now only beginning to obtain and install the necessary technology to meet federal aviation regulations for satellite based area navigation. Worldwide airspace controlling agencies have mandated the use of navigation equipment that meets highly specific performance standards prior to entry in required navigation performance airspace. Aircraft not compliant with these standards are denied flight clearance or experience clearance delays. The Department of Defense has issued policy guidance that allows military aviation organizations to self-certify satellite based navigation technologies to meet required navigation performance standards. In many ways, military navigation technologies far exceed the performance requirements for civil and international airspace use. These technologies, however, are highly specific in their mission orientation and must demonstrate their compatibility with civil aviation standards. This study focused on the source and the specifics of navigation performance requirements. Domestic and international regulations and policies were reviewed as they pertain to civil aviation, and then applied to military aviation. Critical technical standards documents were reviewed to determine the best strategy for complying with civil and international regulations. Lessons learned from previous E-2C navigation system evaluations were also reviewed and incorporated within this compliance strategy. Compliance and self-certification responsibilities belong to aircraft specific program managers within the Navy’s acquisition organization. Sophisticated navigation systems incorporating satellite positioning technology require a tailored approach toward compliance demonstration. Military receivers with precise positioning capability satisfy many of the required availability, accuracy and containment standards. To satisfy civil requirements, correctly keyed, military navigation systems may be evaluated according to standards typically applied to the most highly augmented standard civil systems. This thesis contains a comprehensive list of compliance items selected for their applicability to the E-2C Hawkeye mission.
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Books on the topic "IFR navigation"

1

Leach, B. W. A Kalman filter integrated navigation design for the IAR twin otter atmospheric research aircraft. National Research Council of Canada, 1991.

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2

B, Newman Robert, McConkey Edwin D, and United States. Federal Aviation Administration. Research and Development Service., eds. Rotorcraft low altitude IFR benefit/cost analysis: Conclusions and recommendations. U.S. Dept. of Transportation, Federal Aviation Administration, Research and Development Service, 1993.

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B, Newman Robert, McConkey E. D, and United States. Federal Aviation Administration. Research and Development Service., eds. Rotorcraft low altitude IFR benefit/cost analysis: Conclusions and recommendations. U.S. Dept. of Transportation, Federal Aviation Administration, Research and Development Service, 1993.

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Hartmut Guenther, Hesse. 6 The IMO: Adoption of Counter-piracy Measures to Promote Global Ocean Governance. Oxford University Press, 2018. http://dx.doi.org/10.1093/law/9780198823957.003.0006.

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This chapter examines the measures taken by the International Maritime Organization (IMO) to address the issue of piracy and armed robbery, which present a serious threat to the safety of navigation and consequently to the safety of life at sea and to the marine environment. It describes a number of projects which are being implemented in and the guidance material developed by the IMO for the various affected regions. As this chapter shows, piracy and armed robbery are regional phenomena and consequently different approaches are required for different regions. Moreover, where acts of armed robbery take place in the internal waters or territorial seas of a State, this is not an issue for the international community. Rather, it is up to that State to take action or to invite action from the international community if it wishes to do so.
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Ayto, John. The Oxford Dictionary of Idioms. Oxford University Press, 2020. http://dx.doi.org/10.1093/acref/9780198845621.001.0001.

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Over 10,000 entries What is it to ‘cock a snook’? Where is the land of Nod? Who was first to go the extra mile? Find the answers to these questions (and many more!) in the new edition of the Oxford Dictionary of Idioms. This dictionary uncovers the meanings of myriad phrases and sayings that are used daily in the English language, encompassing more than 10,000 figurative expressions, similes, sayings, and proverbs. More than 400 idioms have been added to this new edition, and comprise recently coined and common sayings alike. New additions include ‘back of the net’, ‘drag and drop’, ‘go it alone’, ‘how come?’, ‘if you ask me’, ‘make your skin crawl’, and ‘wind your neck in’. Illustrative quotations sourced from the Oxford Corpora give contextual examples of the idioms and their standard usage, and many entries include background information on the origins of the idiom in question. An updated thematic index makes for easy navigation, and anyone who is interested in the origins and diversity of English vernacular will have hours of fun browsing this fascinating dictionary.
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Auerbach, Jeffrey A. Voyages. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198827375.003.0002.

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Chapter 1 contends that long-distance voyages became increasingly tedious during the nineteenth century as navigational techniques improved and as the novelty of sailing to India and Australia wore off. Whereas in the eighteenth century ships had made frequent stops for water and provisions and to engage in trade, by the nineteenth century voyages to the East were generally made nonstop and out of sight of land for almost the entire distance. Shipboard diaries make clear that the worst part about these journeys was not the storms or cramped cabins, but the boredom of spending day after day out on the water with nothing to break up the monotony. If in the seventeenth and eighteenth century a voyage to India was a treacherous journey into the unknown, by the mid-nineteenth century it had become a cheerless interlude.
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Book chapters on the topic "IFR navigation"

1

Boysen, Mikkel, Christian de Haas, Hua Lu, and Xike Xie. "A Journey from IFC Files to Indoor Navigation." In Web and Wireless Geographical Information Systems. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-55334-9_10.

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Palacz, Wojciech, Grażyna Ślusarczyk, Barbara Strug, and Ewa Grabska. "Indoor Robot Navigation Using Graph Models Based on BIM/IFC." In Artificial Intelligence and Soft Computing. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20915-5_58.

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Zhang, Longping, Junyi Xu, Hanzhang Yu, Xiancai Tian, and Deqiang Han. "Unification of Multi-GNSS Bias Reference and Parameter Optimization of ISB/IFB Random Model." In China Satellite Navigation Conference (CSNC) 2020 Proceedings: Volume III. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3715-8_2.

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Abou Diakité, Abdoulaye, and Sisi Zlatanova. "Valid Space Description in BIM for 3D Indoor Navigation." In Architecture and Design. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-7314-2.ch025.

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The BIM paradigm, supplied by appropriate standards like IFC, became unavoidable in recent construction projects. Several applications (e.g. indoor navigation, energy analysis ...) find in it a source of information on which they can rely. However, practices reveal that BIM models are not always directly reliable for applications and the latter have to ensure the validity of the data by their own. In the case of indoor navigation, the calculations will highly rely on the IfcSpace objects describing the rooms, in addition to their spatial relationships with their surrounding components. Unfortunately, it is common to face IFC models in which IfcSpace objects contain wrong geometric and topological description. In this paper, the authors discuss the issues related to BIM models validation for indoor navigation. Furthermore, they present a method to generate valid indoor spaces in IFC models. The approach relies on the structural components of the building (walls, slabs, etc.) and uses topological operations, supported by the combinatorial map data structure, to produce watertight space volumes.
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Conference papers on the topic "IFR navigation"

1

"Concepts for delivering IFR clearances and exchanging pre-departure data using mobile devices." In 2018 Integrated Communications, Navigation, Surveillance Conference (ICNS). IEEE, 2018. http://dx.doi.org/10.1109/icnsurv.2018.8384968.

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Diffenderfer, Paul A., Kevin M. Long, and Sara A. Wilkins. "Concepts for delivering ifr clearances & exchanging pre-departure data using mobile devices." In 2018 Integrated Communications, Navigation, Surveillance Conference (ICNS). IEEE, 2018. http://dx.doi.org/10.1109/icnsurv.2018.8384878.

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Avery, Sherri Shearon, and David Stapleton. "Phase I helicopter test flight evaluation of IFR approaches to a heliport under GPS/WAAS guidance." In 2010 IEEE/ION Position, Location and Navigation Symposium - PLANS 2010. IEEE, 2010. http://dx.doi.org/10.1109/plans.2010.5507345.

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Samy, R. A., and A. Lucas. "AIRCRAFT NAVIGATION USING I.R. IMAGE ANALYSIS." In 32nd Annual Technical Symposium, edited by Andrew G. Tescher. SPIE, 1988. http://dx.doi.org/10.1117/12.948472.

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Norton, Greg. "Flight testing IFF in your lab, ViaSat VRG-1000." In 2016 Integrated Communications Navigation and Surveillance (ICNS). IEEE, 2016. http://dx.doi.org/10.1109/icnsurv.2016.7486414.

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Yu, Wonpil, Sunglok Choi, Kyungkeun Lee, and YoungSook Jeong. "A study on navigation performance evaluation of educational robots." In 2013 44th International Symposium on Robotics (ISR 2013). IEEE, 2013. http://dx.doi.org/10.1109/isr.2013.6695733.

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Ilyas, Muhammad, Kuk Cho, Sangdeok Park, and Seung-Ho Baeg. "Dependable navigation in GPS denied environment: A multi-sensor fusion technique." In 2013 44th International Symposium on Robotics (ISR). IEEE, 2013. http://dx.doi.org/10.1109/isr.2013.6695717.

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Lai, Wei-Min, and Chi-Ying Lin. "Autonomous cross-floor navigation of a stair-climbing mobile robot using wireless and vision sensor." In 2013 44th International Symposium on Robotics (ISR). IEEE, 2013. http://dx.doi.org/10.1109/isr.2013.6695649.

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Sun, Yizhen, Junyou Yang, Donghui Zhao, and Shuyu Li. "Personal Care Robot Navigation System Based on Multi-sensor Fusion." In 2021 IEEE International Conference on Intelligence and Safety for Robotics (ISR). IEEE, 2021. http://dx.doi.org/10.1109/isr50024.2021.9419533.

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Sha, Hai, Pengpeng Li, Jianwei Zhan, Bo Xu, and Gang Ou. "Comparsion between timing methods in BeiDou satellite navigation system." In 2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC). IEEE, 2013. http://dx.doi.org/10.1109/eftf-ifc.2013.6702178.

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