Littérature scientifique sur le sujet « Localization technique »

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Articles de revues sur le sujet "Localization technique"

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Abkari, Safae El. « Wireless Indoor Localization Using Fingerprinting Technique ». Journal of Advanced Research in Dynamical and Control Systems 12, SP7 (25 juillet 2020) : 2597–602. http://dx.doi.org/10.5373/jardcs/v12sp7/20202394.

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Lei, Lili, et Jeffrey L. Anderson. « Comparisons of Empirical Localization Techniques for Serial Ensemble Kalman Filters in a Simple Atmospheric General Circulation Model ». Monthly Weather Review 142, no 2 (24 janvier 2014) : 739–54. http://dx.doi.org/10.1175/mwr-d-13-00152.1.

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Abstract Two techniques for estimating good localization functions for serial ensemble Kalman filters are compared in observing system simulation experiments (OSSEs) conducted with the dynamical core of an atmospheric general circulation model. The first technique, the global group filter (GGF), minimizes the root-mean-square (RMS) difference between the estimated regression coefficients using a hierarchical ensemble filter. The second, the empirical localization function (ELF), minimizes the RMS difference between the true values of the state variables and the posterior ensemble mean. Both techniques provide an estimate of the localization function for an observation’s impact on a state variable with few a priori assumptions about the localization function. The ELF localizations can have values larger than 1.0 at small distances, indicating that this technique addresses localization but also can correct the prior ensemble spread in the same way as a variance inflation when needed. OSSEs using ELF localizations generally have smaller root-mean-square error (RMSE) than the optimal Gaspari and Cohn (GC) localization function obtained by empirically tuning the GC width. The localization functions estimated by the GGF are broader than those from the ELF, and the OSSEs with the GGF localization generally have larger RMSE than the optimal GC localization function. The GGFs are too broad because of spurious correlation biases that occur in the OSSEs. These errors can be reduced by using a stochastic EnKF with perturbed observations instead of a deterministic EAKF.
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DeAngelis, Gia A., Ruth E. Moran, Laurie L. Fajardo, John P. Mugler, John M. Christopher et Jennifer A. Harvey. « MRI-guided needle localization : Technique ». Seminars in Ultrasound, CT and MRI 21, no 5 (octobre 2000) : 337–50. http://dx.doi.org/10.1016/s0887-2171(00)90028-3.

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Shahruz, S. M. « Technique to eliminate vibration localization ». Review of Scientific Instruments 75, no 11 (novembre 2004) : 4629–35. http://dx.doi.org/10.1063/1.1804851.

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Prakash, Surya, et Phalguni Gupta. « An efficient ear localization technique ». Image and Vision Computing 30, no 1 (janvier 2012) : 38–50. http://dx.doi.org/10.1016/j.imavis.2011.11.005.

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Karczmar, Gregory S., Gerald B. Matson et Michael W. Weiner. « A single acquisition localization technique ». Magnetic Resonance in Medicine 3, no 2 (avril 1986) : 341–45. http://dx.doi.org/10.1002/mrm.1910030221.

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Wu, Zhefu, Lei Jiang, Zhuangzhuang Jiang, Bin Chen, Kai Liu, Qi Xuan et Yun Xiang. « Accurate Indoor Localization Based on CSI and Visibility Graph ». Sensors 18, no 8 (3 août 2018) : 2549. http://dx.doi.org/10.3390/s18082549.

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Passive indoor localization techniques can have many important applications. They are nonintrusive and do not require users carrying measuring devices. Therefore, indoor localization techniques are widely used in many critical areas, such as security, logistics, healthcare, etc. However, because of the unpredictable indoor environment dynamics, the existing nonintrusive indoor localization techniques can be quite inaccurate, which greatly limits their real-world applications. To address those problems, in this work, we develop a channel state information (CSI) based indoor localization technique. Unlike the existing methods, we employ both the intra-subcarrier statistics features and the inter-subcarrier network features. Specifically, we make the following contributions: (1) we design a novel passive indoor localization algorithm which combines the statistics and network features; (2) we modify the visibility graph (VG) technique to build complex networks for the indoor localization applications; and (3) we demonstrate the effectiveness of our technique using real-world deployments. The experimental results show that our technique can achieve about 96% accuracy on average and is more than 9% better than the state-of-the-art techniques.
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Guo, Xi. « Fault Detection Technique Based on Fine Grained Slicing Spectrum ». Applied Mechanics and Materials 543-547 (mars 2014) : 963–66. http://dx.doi.org/10.4028/www.scientific.net/amm.543-547.963.

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Test coverage information is usually used to compute the suspiciousness to locate the software errors in the current fault localization techniques, but this technique usually do not consider the reliance information within the target program, and the precision is also very low. A novel fault localization technique based on fine grained slicing spectrum is proposed in this paper, which can increase the efficiency of fault localization. This technique analyzes the reliance information under fine grained level, and selects the check points which are prone to be faulty, and the faulty statements is located according to the suspicious result. Experimental results show that this technique has better efficiency than the current techniques.
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Eom, Jewon, Hyowon Kim, Sang Hyun Lee et Sunwoo Kim. « DNN-Assisted Cooperative Localization in Vehicular Networks ». Energies 12, no 14 (18 juillet 2019) : 2758. http://dx.doi.org/10.3390/en12142758.

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This work develops a deep-learning-based cooperative localization technique for high localization accuracy and real-time operation in vehicular networks. In cooperative localization, the noisy observation of the pairwise distance and the angle between vehicles causes nonlinear optimization problems. To handle such a nonlinear optimization task at each vehicle, a deep neural network (DNN) technique is to replace a cumbersome solution of nonlinear optimization along with the saving of the computational loads. Simulation results demonstrate that the proposed technique attains some performance gain in localization accuracy and computational complexity as compared to existing cooperative localization techniques.
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Hall, FM, et MA Connaughton. « Parallax technique in breast lesion localization ». American Journal of Roentgenology 145, no 3 (septembre 1985) : 653. http://dx.doi.org/10.2214/ajr.145.3.653-a.

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Thèses sur le sujet "Localization technique"

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Khan, Adnan Umar. « Distributive time division multiplexed localization technique for WLANs ». Thesis, De Montfort University, 2012. http://hdl.handle.net/2086/7102.

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This thesis presents the research work regarding the solution of a localization problem in indoor WLANs by introducing a distributive time division multiplexed localization technique based on the convex semidefinite programming. Convex optimizations have proven to give promising results but have limitations of computational complexity for a larger problem size. In the case of localization problem the size is determined depending on the number of nodes to be localized. Thus a convex localization technique could not be applied to real time tracking of mobile nodes within the WLANs that are already providing computationally intensive real time multimedia services. Here we have developed a distributive technique to circumvent this problem such that we divide a larger network into computationally manageable smaller subnets. The division of a larger network is based on the mobility levels of the nodes. There are two types of nodes in a network; mobile, and stationery. We have placed the mobile nodes into separate subnets which are tagged as mobile whereas the stationary nodes are placed into subnets tagged as stationary. The purpose of this classification of networks into subnets is to achieve a priority-based localization with a higher priority given to mobile subnets. Then the classified subnets are localized by scheduling them in a time division multiplexed way. For this purpose a time-frame is defined consisting of finite number of fixed duration time-slots such that within the slot duration a subnet could be localized. The subnets are scheduled within the frames with a 1:n ratio pattern that is within n number of frames each mobile subnet is localized n times while each stationary subnet consisting of stationary nodes is localized once. By using this priority-based scheduling we have achieved a real time tracking of mobile node positions by using the computationally intensive convex optimization technique. In addition, we present that the resultant distributive technique can be applied to a network having diverse node density that is a network with its nodes varying from very few to large numbers can be localized by increasing frame duration. This results in a scalable technique. In addition to computational complexity, another problem that arises while formulating the distance based localization as a convex optimization problem is the high-rank solution. We have also developed the solution based on virtual nodes to circumvent this problem. Virtual nodes are not real nodes but these are nodes that are only added within the network to achieve low rank realization. Finally, we developed a distributive 3D real-time localization technique that exploited the mobile user behaviour within the multi-storey indoor environments. The estimates of heights by using this technique were found to be coarse. Therefore, it can only be used to identify floors in which a node is located.
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Yeluri, Sai Krishna. « Outdoor localization technique using landmarks to determine position and orientation ». [Gainesville, Fla.] : University of Florida, 2003. http://purl.fcla.edu/fcla/etd/UFE0000828.

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Handfield, Joseph J. « High resolution source localization in near-field sensor arrays by MVDR technique / ». Online version of thesis, 2007. http://hdl.handle.net/1850/5861.

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Sheng, Jian. « VALUE-BASED FAULT LOCALIZATION IN JAVA NUMERICAL SOFTWARE WITH CAUSAL INFERENCE TECHNIQUE ». Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1543982972617959.

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Ambarkutuk, Murat. « A Grid based Indoor Radiolocation Technique Based on Spatially Coherent Path Loss Model ». Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/80405.

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This thesis presents a grid-based indoor radiolocation technique based on a Spatially Coherent Path Loss Model (SCPL). SCPL is a path loss model which characterizes the radio wave propagation in an environment by solely using Received Signal Strength (RSS) fingerprints. The propagation of the radio waves is characterized by uniformly dividing the environment into grid cells, followed by the estimation of the propagation parameters for each grid cell individually. By using SCPL and RSS fingerprints acquired at an unknown location, the distance between an agent and all the access point in an indoor environment can be determined. A least-squares based trilateration is then used as the global fix of location the agent in the environment. The result of the trilateration is then represented in a probability distribution function over the grid cells induced by SCPL. Since the proposed technique is able to locally model the propagation accounting for attenuation of non-uniform environmental irregularities, the characterization of the path loss in the indoor environment and radiolocation technique might yield improved results. The efficacy of the proposed technique was investigated with an experiment comparing SCPL and an indoor radiolocation technique based on a conventional path loss model.
Master of Science
This thesis presents a technique uses radio waves to localize an agent in an indoor environment. By characterizing the difference between transmitted and received power of the radio waves, the agent can determine how far it is away from the transmitting antennas, i.e. access points, placed in the environment. Since the power difference mainly results from obstructions in the environment, the attenuation profile of the environment carries a significant importance in radiolocation techniques. The proposed technique, called Spatially Coherent Path Loss Model (SCPL), characterizes the radio wave propagation, i.e. the attenuation, separately for different regions of the environment, unlike the conventional techniques employing global attenuation profiles. The localization environment is represented with grid-cell structure and the parameters of SCPL model describing the extent of the attenuation of the environment are estimated individually. After creating an attenuation profile of the environment, the agent localizes itself in the localization environment by using SCPL with signal powers received from the access points. This scheme of attenuation profiling constitutes the main contribution of the proposed technique. The efficacy and validity of the proposed technique was investigated with an experiment comparing SCPL and an indoor radiolocation technique based on a conventional path loss model.
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Imam, Farasat. « Bluetooth Low Energy (BLE) based Indoor Localization using Fingerprinting Techniques ». Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.

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Positioning technologies have been created over the last few decades to provide users with location and navigation services by utilizing technological advancements in digital circuitry. GPS was one of the first positioning systems to be created (Global Positioning System). This system is a location-based navigation system that operates through satellites. Using GPS used to necessitate special (expensive) hardware, but smartphone technology has made it possible to use GPS on our handheld devices without the need for any additional equipment. We're all familiar with this; we use GPS on our smartphones for navigating in our daily lives. For outdoor location, GPS has become the de facto standard. However, due to the lack of Line-of-Sight (LoS) inside buildings, GPS cannot be used in our indoor environments. Positioning systems for indoor environments (market) are being developed since humans spend more time indoors than outdoors. Indoor positioning systems have been developed using a variety of available signal technologies (such as WiFi, ZigBee, Bluetooth, UWB, and others) depending on the context and application scenario. The Bluetooth-Low Energy (or Bluetooth Smart) protocol was first released in 2010. This signal technology was created with the goal of being low-cost and energy efficient. Apple Inc. and Aruba (Hewlett Packard Enterprise) introduced Beacon technology, which uses the Bluetooth Low Energy standard to communicate with smartphones and provide context and location awareness. The fact that all new smartphones (and tablets) include the BLE protocol can be exploited to aid in the development of low-cost, energy-efficient, precise, and accurate indoor positioning systems (by making use of Beacon and smartphone). The BLE protocol has the potential to become the de facto standard for the Internet of Things phenomenon, and so a BLE-based localization system in an indoor environment might become an integrated part of IoT.
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Mi, Liang. « A Testbed for Design and Performance Evaluation of Visual Localization Technique inside the Small Intestine ». Digital WPI, 2014. https://digitalcommons.wpi.edu/etd-theses/620.

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Wireless video capsule endoscopy (VCE) plays an increasingly important role in assisting clinical diagnoses of gastrointestinal (GI) diseases. It provides a non-invasive way to examine the entire small intestine, where other conventional endoscopic instruments can barely reach. Existing examination systems for the VCE cannot track the location of a endoscopic capsule, which prevents the physician from identifying the exact location of the diseases. During the eight hour examination time, the video capsule continuously keeps taking images at a frame rate up to six frame per sec, so it is possible to extract the motion information from the content of the image sequence. Many attempts have been made to develop computer vision algorithms to detect the motion of the capsule based on the small changes in the consecutive video frames and then trace the location of the capsule. However, validation of those algorithms has become a challenging topic because conducting experiments on the human body is extremely difficult due to individual differences and legal issues. In this thesis, two validation approaches for motion tracking of the VCE are presented in detail respectively. One approach is to build a physical testbed with a plastic pipe and an endoscopy camera; the other is to build a virtual testbed by creating a three-dimensional virtual small intestine model and simulating the motion of the capsule. Based on the virtual testbed, a physiological factor, intestinal contraction, has been studied in terms of its influence on visual based localization algorithm and a geometric model for measuring the amount of contraction is proposed and validated via the virtual testbed. Empirical results have made contributions in support of the performance evaluation of other research on the visual based localization algorithm of VCE.
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Erdem, Rengin. « Ag2s/2-mpa Quantum Dots ». Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614384/index.pdf.

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Quantum dots are fluorescent semiconductor nanocrystals that have unique optical properties such as high quantum yield and photostability. These nanoparticles are superior to organic dyes and fluorescent proteins in many aspects and therefore show great potential for both in vivo and in vitro imaging and drug delivery applications. However, cytototoxicity is still one of the major problems associated with their biological applications. The aim of this study is in vitro characterization and assessment of biological application potential of a novel silver sulfide quantum dot coated with mercaptopropionic acid (2-MPA). In vitro studies reported in this work were conducted on a mouse fibroblast cell line (NIH/3T3) treated with Ag2S/2-MPA quantum dots in 10-600 &mu
g/mL concentration range for 24 h. Various fluorescence spectroscopy and microscopy methods were used to determine metabolic activity, proliferation rate and apoptotic fraction of QD-treated cells as well as QD internalization efficiency and intracellular localization. Metabolic activity and proliferation rate of the QD treated cells were measured with XTT and CyQUANT®
cell proliferation assays, respectively. Intracellular localization and qualitative uptake studies were conducted using confocal laser scanning microscopy. Apoptosis studies were performed with Annexin V assay. Finally, we also conducted a quantitative uptake assay to determine internalization efficiency of the silver sulfide particles. Correlated metabolic activity and proliferation assay results indicate that Ag2S/2-MPA quantum dots are highly cytocompatible with no significant toxicity up to 600 &mu
g/mL treatment. Optimal cell imaging concentration was determined as 200 &mu
g/mL. Particles displayed a punctuated cytoplasmic distribution indicating to endosomal entrapment. In vitro characterization studies reported in this study indicate that Ag2S/2-MPA quantum dots have great biological application potential due to their excellent spectral and cytocompatibility properties. Near-infrared emission of silver sulfide quantum dots provides a major advantage in imaging since signal interference from the cells (autofluorescence) which is a typical problem in microscopic studies is minimum in this part of the emission spectrum. The results of this study are presented in an article which was accepted by Journal of Materials Chemistry. DOI: 10.1039/C2JM31959D.
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Tondreau, Gilles. « Damage localization in civil engineering structures using dynamic strain measurements ». Doctoral thesis, Universite Libre de Bruxelles, 2013. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209466.

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This thesis focuses on the development of a new method for the continuous

monitoring of civil engineering structures in order to locate small damages automatically. A

review of the very wide literature on Structural Health Monitoring (SHM) points first out that

the methods can be grouped in four categories based on their need or not of a numerical model,

as well as their need or not of information of the damaged structure to be applied. This state

of the art of the SHM methods highlights the requirement to reach each levels of SHM, which

is in particular for the localization of small damages in civil engineering structures the needs

for a non-model based output-only damage sensitive feature extraction technique. The origin of

the local sensitivity of strains to damages is also analyzed, which justifies their use for damage

localization.

A new method based on the modal filtering technique which consists in combining linearly

the sensor responses in a specific way to mimic a single degree of freedom system and which

was previously developed for damage detection is proposed. A very large network of dynamic

strain sensors is deployed on the structure and split into several independent local sensor networks.

Low computational cost and fast signal processing techniques are coupled to statistical

control charts for robust and fully automated damage localization.

The efficiency of the method is demonstrated using time-domain simulated data on a simply

supported beam and a three-dimensional bridge structure. The method is able to detect and

locate very small damages even in the presence of noise on the measurements and variability

of the baseline structure if strain sensors are used. The difficulty to locate damages from acceleration

sensors is also clearly illustrated. The most common classical methods for damage

localization are applied on the simply supported beam and the results show that the modal filtering

technique presents much better performances for an accurate localization of small damages

and is easier to automate.

An improvement of the modal filters method referred to as adaptive modal filters is next

proposed in order to enhance the ability to localize small damages, as well as to follow their

evolution through modal filters updating. Based on this study, a new damage sensitive feature

is proposed and is compared with other damage sensitive features to detect the damages with

modal filters to demonstrate its interest. These expectations are verified numerically with the

three-dimensional bridge structure, and the results show that the adaptation of the modal filters

increases the sensitivity of local filters to damages.

Experimental tests have been led first to check the feasibility of modal filters to detect damages

when they are used with accelerometers. Two case studies are considered. The first work

investigates the experimental damage detection of a small aircraft wing equipped with a network

of 15 accelerometers, one force transducer and excited with an electro-dynamic shaker. A

damage is introduced by replacing inspection panels with damaged panels. A modified version

of the modal filtering technique is applied and compared with the damage detection based principal

component analysis of FRFs as well as of transmissibilities. The three approaches succeed

in the damage detection but we illustrate the advantage of using the modal filtering algorithm as

well as of the new damage sensitive feature. The second experimental application aims at detecting

both linear and nonlinear damage scenarios using the responses of four accelerometers

installed on the three-storey frame structure previously developed and studied at Los Alamos

National Labs. In particular, modal filters are shown to be sensitive to both types of damages,

but cannot make the distinction between linear and nonlinear damages.

Finally, the new method is tested experimentally to locate damages by considering cheap

piezoelectric patches (PVDF) for dynamic strain measurements. Again, two case studies are investigated.

The first work investigates a small clamped-free steel plate equipped with 8 PVDFs sensors, and excited with a PZT patch. A small damage is introduced at different locations by

fixing a stiffener. The modal filters are applied on three local filters in order to locate damage.

Univariate control charts allow to locate automatically all the damage positions correctly.

The last experimental investigation is devoted to a 3.78m long I-steel beam equipped with 20

PVDFs sensors and excited with an electro-dynamic shaker. Again, a small stiffener is added to

mimic the effect of a small damage and five local filters are defined to locate the damage. The

damage is correctly located for several positions, and the interest of including measurements

under different environmental conditions for the baseline as well as overlapping the local filters

is illustrated.

The very nice results obtained with these first experimental applications of modal filters

based on strains show the real interest of this very low computational cost method for outputonly

non-model based automated damage localization of real structures.
Doctorat en Sciences de l'ingénieur
info:eu-repo/semantics/nonPublished

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Kothakapa, Vijayvardhan Reddy. « Investigation on the use of time-modulation technique for an ultra-wideband reader ». Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/14982/.

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Ultra-wideband Technology is a trusted key for future generation radio frequency identification systems to conquer them as high as the limitations of the ongoing narrow bandwidth radio frequency identification technology like decreasing the space coverage, insufficient ranging resolution for accurate localization, sensitivity to interference, and multiple access capabilities. The idea in practice is to apply the Time Modulation technique which means the presence of switches at the antenna ports, which is a new procedure, but typically adopted for narrowband antennas arrays. So, for the arrays working at a single frequency. Here we are trying to see if it is possible to apply this excitation technique also to ultra-wideband antennas. So, in this case, instead of having two monopoles for instance as well as our application, we have used two Ultra-wideband antennas working in the lower European UWB band [3.1 – 4.8]GHz. For single narrow band antennas, we see what it happens only at single band frequency. In this case, having UWB antennas, we must split our 2GHz band from 3 to 5GHz into windows of 500MHz. This dissertation mainly focuses on the two important characteristics. They are: localization and power transmission both realized by the time modulated antenna array and evaluates their application in the communication system. The first step of experiment localization is carried out on a computer by using the software tool called Computer Simulation Technology (CST) in the range from 3GHz to 5GHz and then merging the results with a MATLAB programming to extract the far-field results and by using Nonlin software which was developed by the researchers of DEI: with this procedure we are able to evaluate the simulation results of far-field by taking into account all the possible phenomena, both linear and non-linear, taking place in the radiating system under test.
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Livres sur le sujet "Localization technique"

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Tashjian, Joseph. Mammographic technique for the localization of structures in small animals. Saint Paul, Minn : Science Museum of Minnesota, 1990.

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Tian, Xiaohua, Xinyu Tong et Xinbing Wang. Wireless Localization Techniques. Cham : Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-21178-2.

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C, Masdeu Joseph, et Biller José, dir. Localization in clinical neurology. 6e éd. Philadelphia : Wolters Kluwer Health/Lippincott Williams & Wilkins, 2011.

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Patterson, Bruce K., dir. Techniques in Quantification and Localization of Gene Expression. Boston, MA : Birkhäuser Boston, 2000. http://dx.doi.org/10.1007/978-1-4612-1342-0.

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R, Trimble Michael, dir. New brain imaging techniques and psychopharmacology. Oxford : Oxford University Press, 1986.

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R, Trimble Michael, dir. New brain imaging techniques and psychopharmacology. Oxford : Oxford University Press, 1985.

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Andrea, Giorgetti, dir. Cognitive radio techniques : Spectrum sensing, interference mitigation, and localization. Boston, Mass : Artech House, 2012.

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Elizabeth, Hillis Argye, dir. New techniques for identifying the neural substrates of language. [Hove, East Sussex : Psychology Press, 2002.

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Wörz, Stefan. 3D parametric intensity models for the localization of 3D anatomical point landmarks and 3D segmentation of human vessels. Berlin : Akademische Verlagsgesellschaft Aka, 2006.

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Sofia, Diaz Aura, dir. The three faces of mind : Developing your mental, emotional, and behavioral intelligences. Wheaton, Ill : Theosophical Pub. House, 1996.

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Chapitres de livres sur le sujet "Localization technique"

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Dumka, Ankur, Alaknanda Ashok, Parag Verma, Anuj Bhardwaj et Navneet Kaur. « Secure Localization Technique (SLT) ». Dans Security Issues for Wireless Sensor Networks, 169–211. Boca Raton : CRC Press, 2022. http://dx.doi.org/10.1201/9781003257608-7.

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Jayaseelan, Sabarinath, Francis Doyle, Salvatore Currenti et Scott A. Tenenbaum. « RIP : An mRNA Localization Technique ». Dans Methods in Molecular Biology, 407–22. Totowa, NJ : Humana Press, 2011. http://dx.doi.org/10.1007/978-1-61779-005-8_25.

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Ansari, Faimy Q., Jitendra Kumar Pal, Jainendra Shukla, G. C. Nandi et Pavan Chakraborty. « A Cloud Based Robot Localization Technique ». Dans Communications in Computer and Information Science, 347–57. Berlin, Heidelberg : Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-32129-0_36.

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Kalvapalli, Sai Prabanjan Kumar, et C. Mala. « Simultaneous Localization and Mapping with Gaussian Technique ». Dans Algorithms for Intelligent Systems, 285–91. Singapore : Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3357-0_19.

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Kiernan, Colleen M., et Carmen C. Solórzano. « Ultrasound as a Localization Technique in Hyperparathyroidism ». Dans Advanced Thyroid and Parathyroid Ultrasound, 269–87. Cham : Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-44100-9_25.

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Heuts, Gijs, et Ieke Moerdijk. « Mapping Spaces and Bousfield Localizations ». Dans Simplicial and Dendroidal Homotopy Theory, 453–80. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-10447-3_11.

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AbstractRecall from Section 8.3 that a left Bousfield localization of a model category ε is a different model structure on the same category with more weak equivalences, but the same cofibrations. We have seen several examples of these already, such as the Kan–Quillen model structure as a localization of the categorical model structure on simplicial sets, as well as the various model structures on the category of dendroidal sets. In the next chapter, it will be necessary to have a general method of constructing such localizations, starting only from a ‘basic’ model structure and a set of morphisms which one would like to make weak equivalences. We will establish the technique to do so in this chapter.
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Ul Haq, Muhammad Aziz, Hammid Mehmood Allahdita Kamboh, Usman Akram, Amer Sohail et Hifsa Iram. « Indoor Localization Using Improved Multinomial Naïve Bayes Technique ». Dans Proceedings of the Third International Afro-European Conference for Industrial Advancement — AECIA 2016, 321–29. Cham : Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-60834-1_32.

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Gore, Alpa, Siddharth Dutt Choubey et Kopal Gangrade. « Improved Bug Localization Technique Using Hybrid Information Retrieval Model ». Dans Distributed Computing and Internet Technology, 127–31. Cham : Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-28034-9_16.

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Baniadamdizaj, Shima. « Localization Using DeepLab in Document Images Taken by Smartphones ». Dans Digital Interaction and Machine Intelligence, 63–74. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-11432-8_6.

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AbstractThe seamless integration of statistics from virtual and paper files could be very crucial for the know-how control of efficient. A handy manner to obtain that is to digitize a report from a picture. This calls for the localization of the report in the picture. Several approaches are deliberate to resolve this hassle; however, they are supported historical picture method strategies that are not robust to intense viewpoints and backgrounds. Deep Convolutional Neural Networks (CNNs), on the opposite hand, have been validated to be extraordinarily strong to versions in heritage and perspective of view for item detection and classification duties. Inspired by their robustness and generality, we advocate a CNN-primarily based totally technique for the correct localization of files in real-time. We advocate the new utilization of Neural Networks (NNs) for the localization hassle as a key factor detection hassle. The proposed technique ought to even localize snapshots that don't have a very square shape. Also, we used a newly amassed dataset that has extra tough duties internal and is in the direction of a slipshod user. The result is knowledgeable in 3 specific classes of snapshots and our proposed technique has 100% accuracy on easy one and 77% on average. The result is as compared with the maximum famous report localization strategies and cell applications.
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Seçgin, A., et A. S. Sarıgül. « An Efficient Sound Source Localization Technique via Boundary Element Method ». Dans Vibration and Structural Acoustics Analysis, 151–81. Dordrecht : Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-1703-9_7.

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Actes de conférences sur le sujet "Localization technique"

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Shankpale, Shubhangi, Ganesh Andurkar, Ravi Marravulla, Shivraj Jadhav et Kaushal Kishore. « Localization Technique using Bluetooth ». Dans 2022 International Conference on Industry 4.0 Technology (I4Tech). IEEE, 2022. http://dx.doi.org/10.1109/i4tech55392.2022.9952540.

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D'Aloia, Matteo, Annalisa Longo, Gianluca Guadagno, Mariano Pulpito, Paolo Fornarelli, Pietro Nicola Laera, Dario Manni et Maria Rizzi. « IoT Indoor Localization with AI Technique ». Dans 2020 IEEE International Workshop on Metrology for Industry 4.0 & IoT (MetroInd4.0&IoT). IEEE, 2020. http://dx.doi.org/10.1109/metroind4.0iot48571.2020.9138275.

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Vancsics, Bela. « NFL : Neighbor-Based Fault Localization Technique ». Dans 2019 IEEE 1st International Workshop on Intelligent Bug Fixing (IBF). IEEE, 2019. http://dx.doi.org/10.1109/ibf.2019.8665491.

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WAQAR, MUHAMMAD, MOEZ LOUATI et MOHAMED S. GHIDAOUI. « LEAK LOCALIZATION USING TIME REVERSAL TECHNIQUE ». Dans 38th IAHR World Congress. The International Association for Hydro-Environment Engineering and Research (IAHR), 2019. http://dx.doi.org/10.3850/38wc092019-1713.

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Ziauddin, Sheikh, et Matthew N. Dailey. « A robust hybrid iris localization technique ». Dans 2009 6th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON). IEEE, 2009. http://dx.doi.org/10.1109/ecticon.2009.5137227.

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Abdel Meniem, Mohamed H., Ahmed M. Hamad et Eman Shaaban. « Relative RSS-based GSM localization technique ». Dans 2013 IEEE International Conference on Electro/ Information Technology (EIT). IEEE, 2013. http://dx.doi.org/10.1109/eit.2013.6632643.

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Pirzada, Nasrullah, M. Yunus Nayarr, Fazli Subharr et M. Fadzil Hassan. « Design of an indoor localization system using device-free localization technique ». Dans 2012 IEEE International Conference on Control System, Computing and Engineering (ICCSCE). IEEE, 2012. http://dx.doi.org/10.1109/iccsce.2012.6487191.

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Jinrong, Song, Fan Diwei, Wang Winter, Wen Gaojie, Tian Li et Qi Changyan. « Open/resistive defect localization using OBIRCH technique ». Dans 2016 IEEE 23rd International Symposium on the Physical and Failure Analysis of Integrated Circuits (IPFA). IEEE, 2016. http://dx.doi.org/10.1109/ipfa.2016.7564278.

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Boontrai, Dokor, Thidarat Jingwangsa et Panarat Cherntanomwong. « Indoor localization technique using passive RFID tags ». Dans 2009 9th International Symposium on Communications and Information Technology (ISCIT). IEEE, 2009. http://dx.doi.org/10.1109/iscit.2009.5340979.

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Li, Zhao, Yi Song, Guoqiang Gong, Dongcheng Li, Ke Lv et Jingsha He. « Applying Ordered Technique Set for Fault Localization ». Dans 2019 IEEE 19th International Conference on Software Quality, Reliability and Security Companion (QRS-C). IEEE, 2019. http://dx.doi.org/10.1109/qrs-c.2019.00102.

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Rapports d'organisations sur le sujet "Localization technique"

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Deng, Chun, Zhenyu Zhang, Zhi Guo, Hengduo Qi, Yang Liu, Haimin Xiao et Xiaojun Li. Assessment of intraoperative use of indocyanine green fluorescence imaging on the number of lymph node dissection during minimally invasive gastrectomy : a systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, novembre 2021. http://dx.doi.org/10.37766/inplasy2021.11.0062.

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Review question / Objective: Whether is indocyanine green fluorescence imaging-guided lymphadenectomy feasible to improve the number of lymph node dissections during radical gastrectomy in patients with gastric cancer undergoing curative resection? Condition being studied: Gastric cancer was the sixth most common malignant tumor and the fourth leading cause of cancer-related death in the world. Radical lymphadenectomy was a standard procedure in radical gastrectomy for gastric cancer. The retrieval of more lymph nodes was beneficial for improving the accuracy of tumor staging and the long-term survival of patients with gastric cancer. Indocyanine green(ICG) near-infrared fluorescent imaging has been found to provide surgeons with effective visualization of the lymphatic anatomy. As a new surgical navigation technique, ICG near-infrared fluorescent imaging was a hot spot and had already demonstrated promising results in the localization of lymph nodes during surgery in patients with breast cancer, non–small cell lung cancer, and gastric cancer. In addition, ICG had increasingly been reported in the localization of tumor, lymph node dissection, and the evaluation of anastomotic blood supply during radical gastrectomy for gastric cancer. However, it remained unclear whether ICG fluorescence imaging would assist surgeons in performing safe and sufficient lymphadenectomy.
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Frisk, George V. Modal Mapping Techniques for Geoacoustic Inversion and Source Localization. Fort Belvoir, VA : Defense Technical Information Center, septembre 2003. http://dx.doi.org/10.21236/ada629537.

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Ioup, George E., Juliette W. Ioup et Grayson H. Rayborn. Application of Acoustic Signal Processing Techniques for Improved Underwater Source Detection and Localization. Fort Belvoir, VA : Defense Technical Information Center, août 1988. http://dx.doi.org/10.21236/ada231834.

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Frisk, George V. Modal Mapping Techniques for Geoacoustic Inversion and Source Localization in Laterally Varying, Shallow-Water Environments. Fort Belvoir, VA : Defense Technical Information Center, septembre 2009. http://dx.doi.org/10.21236/ada531689.

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Frisk, George V. Modal Mapping Techniques for Geoacoustic Inversion and Source Localization in Laterally Varying, Shallow-Water Environments. Fort Belvoir, VA : Defense Technical Information Center, septembre 2008. http://dx.doi.org/10.21236/ada533035.

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Frisk, George V. Modal Mapping Techniques for Geoacoustic Inversion and Source Localization in Laterally Varying, Shallow-Water Environments. Fort Belvoir, VA : Defense Technical Information Center, septembre 2007. http://dx.doi.org/10.21236/ada541767.

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Tangyunyong, Paiboon, Mary A. Miller et Edward Isaac, Jr Cole. Characterization of failure modes in deep UV and deep green LEDs utilizing advanced semiconductor localization techniques. Office of Scientific and Technical Information (OSTI), mars 2012. http://dx.doi.org/10.2172/1038197.

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Ehrlich, Marcelo, John S. Parker et Terence S. Dermody. Development of a Plasmid-Based Reverse Genetics System for the Bluetongue and Epizootic Hemorrhagic Disease Viruses to Allow a Comparative Characterization of the Function of the NS3 Viroporin in Viral Egress. United States Department of Agriculture, septembre 2013. http://dx.doi.org/10.32747/2013.7699840.bard.

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Project Title: "Development of a plasmid-based reverse genetics system for the Bluetongue and Epizootic Hemorrhagic Disease viruses to allow comparative characterization of the function of the NS3 viroporin in viral egress". Project details: No - IS-4192-09; Participants – Ehrlich M. (Tel Aviv University), Parker J.S. (Cornell University), DermodyT.S. (Vanderbilt University); Period - 2009-2013. Orbiviruses are insect-borne infectious agents of ruminants that cause diseases with considerable economical impact in Israel and the United States. The recent outbreaks of BTV in Europe and of Epizootic Hemorrhagic Disease Virus (EHDV) in Israel, underscore the need for: (i) a better comprehension of the infection process of orbiviruses, (ii) the identification of unique vs. common traits among different orbiviruses, (iii) the development of novel diagnosis and treatment techniques and approaches; all aimed at the achievement of more effective control and treatment measures. It is the context of these broad goals that the present project was carried out. To fulfill our long-term goal of identifying specific viral determinants of virulence, growth, and transmission of the orbiviruses, we proposed to: (i) develop reverse genetics systems for BTV and EHDV2-Ibaraki; and (ii) identify the molecular determinants of the NS3 nonstructural protein related to viroporin/viral egress activities. The first objective was pursued with a two-pronged approach: (i) development of a plasmid-based reverse genetics system for BTV-17, and (ii) development of an "in-vitro" transcription-based reverse genetics system for EHDV2-Ibaraki. Both approaches encountered technical problems that hampered their achievement. However, dissection of the possible causes of the failure to achieve viral spread of EHDV2-Ibaraki, following the transfection of in-vitro transcribed genomic segments of the virus, revealed a novel characteristic of EHDV2-Ibaraki infection: an uncharacteristically low fold increase in titer upon infection of different cell models. To address the function and regulation of NS3 we employed the following approaches: (i) development (together with Anima Cell Metrology) of a novel technique (based on the transfection of fluorescently-labeledtRNAs) that allows for the detection of the levels of synthesis of individual viral proteins (i.e. NS3) in single cells; (ii) development of a siRNA-mediated knockdown approach for the reduction in levels of expression of NS3 in EHDV2-Ibaraki infected cells; (iii) biochemical and microscopy-based analysis of the localization, levels and post-translational modifications of NS3 in infected cells. In addition, we identified the altered regulation and spatial compartmentalization of protein synthesis in cells infected with EHDV2-Ibaraki or the mammalian reovirus. In EHDV2-Ibaraki-infected cells such altered regulation in protein synthesis occurs in the context of a cell stress reponse that includes the induction of apoptosis, autophagy and activation of the stressrelated kinase c-Jun N-terminal Kinase (JNK). Interestingly, inhibition of such stress-related cellular processes diminishes the production of infectious virions, suggesting that EHDV usurps these responses for the benefit of efficient infection. Taken together, while the present project fell short of the generation of novel reverse genetics systems for orbiviruses, the development of novel experimental approaches and techniques, and their employment in the analysis of EHDV-infected cells, yielded novel insights in the interactions of orbiviruses with mammalian cells.
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Sengupta-Gopalan, Champa, Shmuel Galili et Rachel Amir. Improving Methionine Content in Transgenic Forage Legumes. United States Department of Agriculture, février 2001. http://dx.doi.org/10.32747/2001.7580671.bard.

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Leguminous forage crops are high in proteins but deficient in S- amino acids. It has been shown that both wool quality and milk production can be limited by the post-ruminal supply of sulfur-containing amino acids. Efforts to use conventional plant breeding and cell selection techniques to increase the S-amino acid content of alfalfa have met with little success. With the objective to increase the S-amino acid content of forage legumes, the goal of this project was to co- express the methionine rich zein genes from corn along with a gene for a key enzyme in methionine biosynthesis, aspartate kinase(AK). The zeins are seed storage proteins from corn and are groupec into four distinct classes based on their amino acid sequence homologies. The b-zein (15kd) and the 6zein (10kD and 18kD) have proportionately high levels of methionine (10%, 22% and 28%, respectively). Initial studies from our lab had shown that while the 15kD zein accumulated to high levels in vegetative tissues of transgenic tobacco the l0kD zein did not. However, co-expression of the 10kD zein with the 15kD zein genes in tobacco showed stabilization of the 10kD zein and the co-localization of the 10kD and 15kD zein proteins in unique ER derived protein bodies. AK is the key enzyme for producing carbon skeletons for all amino acids of the aspartate family including methionine. It is, however, regulated by end-product feedback inhibition. The specific objectives of this proposal were: i. to co-express the 15kD zein with the 10/18kD zein genes in alfalfa in order to enhance the level of accumulation of the 10/18kD zein; ii. to increase methionine pools by expressing a feedback insensitive AK gene in transformants co-expressing the 15kD and 10/18kD zein genes. The Israeli partners were successful in expressing the AK gene in alfalfa which resulted in an increase in free and bound threonine but not in methionine (Galili et al., 2000). Since our target was to increase methionine pools, we changed our second objective to replace the AK gene with the gene for cystathionine gamma synthase (CGS) in the co-expression studies. The first methionine specific reaction is catalyzed by CGS. An additional objective was to develop a transformation system for Berseem clover, and to introduce the appropriate gene constructs into it with the goal of improving their methionine content. Genes for the 15kD zein along with the genes for either the 10kD or 18kD zein have been introduced into the same alfalfa plant both by sexual crosses and by re-transformation. Analysis of these zein co-expressors have shown that both the IOkD and 18kD zein levels go up 5 to 10 fold when co-expressed with the 15kD zein (Bagga et al., MS in preparation). Incubation of the leaves of transgenic alfalfa co-expressing the 15kD and 10kD zein genes, in the rumen of cows have shown that the zein proteins are stable in the rumen. To increase the level of zein accumulation in transgenic alfalfa different promoters have been used to drive the zein genes in alfalfa and we have concluded that the CaMV 35S promoter is superior to the other strong leaf -specific promoters. By feeding callus tissue of alfalfa plants co-expressing the 15kD and 10kD zein genes with methionine and its precursors, we have shown that the zein levels could be significantly enhanced by increasing the methionine pools. We have now introduced the CGS gene (from Arabidopsis; kindly provided to us by Dr. Leustek), into the 15kD zein transformants and experiments are in progress to check if the expression of the CGS gene indeed increases the level of zein accumulation in alfalfa. We were not successful in developing a transformation protocol for Berseem clover.
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Sessa, Guido, et Gregory Martin. role of FLS3 and BSK830 in pattern-triggered immunity in tomato. United States Department of Agriculture, janvier 2016. http://dx.doi.org/10.32747/2016.7604270.bard.

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Pattern-recognition receptors (PRRs) located on the plant cell surface initiate immune responses by perceiving conserved pathogen molecules known as pathogen-associated molecular patterns (PAMPs). PRRs typically function in multiprotein complexes that include transmembrane and cytoplasmickinases and contribute to the initiation and signaling of pattern-triggered immunity (PTI). An important challenge is to identify molecular components of PRR complexes and downstream signaling pathways, and to understand the molecular mechanisms that mediate their function. In research activities supported by BARD-4931, we studied the role of the FLAGELLIN SENSING 3 (FLS3) PRR in the response of tomato leaves to flagellin-derivedPAMPs and PTI. In addition, we investigated molecular properties of the tomato brassinosteroid signaling kinase 830 (BSK830) that physically interacts with FLS3 and is a candidate for acting in the FLS3 signaling pathway. Our investigation refers to the proposal original objectives that were to: 1) Investigate the role of FLS3 and its interacting proteins in PTI; 2) Investigate the role of BSK830 in PTI; 3) Examine molecular and phosphorylation dynamics of the FLS3-BSK830 interaction; 4) Examine the possible interaction of FLS3 and BSK830 with Pstand Xcveffectors. We used CRISPR/Cas9 techniques to develop plants carrying single or combined mutations in the FLS3 gene and in the paralogsFLS2.1 and FLS2.2 genes, which encode the receptor FLAGELLIN SENSING2 (FLS2), and analyzed their function in PTI. Domain swapping analysis of the FLS2 and FLS3 receptors revealed domains of the proteins responsible for PAMP detection and for the different ROS response initiated by flgII-28/FLS3 as compared to flg22/FLS2. In addition, in vitro kinase assays and point mutations analysis identified FLS2 and FLS3 domains required for kinase activity and ATP binding. In research activities on tomato BSK830, we found that it interacts with PRRs and with the co-receptor SERK3A and PAMP treatment affects part of these interactions. CRISPR/Cas9 bsk830 mutant plants displayed enhanced pathogen susceptibility and reduced ROS production upon PAMP treatment. In addition, BSK830 interacted with 8 Xanthomonastype III secreted effectors. Follow up analysis revealed that among these effectors XopAE is part of an operon, is translocated into plant cells, and displays E3 ubiquitinligase activity. Our investigation was also extended to other Arabidopsis and tomato BSK family members. Arabidopsis BSK5 localized to the plant cell periphery, interacted with receptor-like kinases, and it was phosphorylatedin vitro by the PEPR1 and EFRPRRs. bsk5 mutant plants displayed enhanced susceptibility to pathogens and were impaired in several, but not all, PAMP-induced responses. Conversely, BSK5 overexpression conferred enhanced disease resistance and caused stronger PTI responses. Genetic complementation suggested that proper localization, kinase activity, and phosphorylation by PRRs are critical for BSK5 function. BSK7 and BSK8 specifically interacted with the FLS2 PRR, their respective mutant plants were more susceptible to B. cinereaand displayed reduced flg22-induced responses. The tomato BSK Mai1 was found to interact with the M3KMAPKKK, which is involved in activation of cell death associated with effector-triggered immunity. Silencing of Mai1 in N. benthamianaplants compromised cell death induced by a specific class of immune receptors. In addition, co-expression of Mai1 and M3Kin leaves enhanced MAPKphosphorylation and cell death, suggesting that Mai1 acts as a molecular link between pathogen recognition and MAPK signaling. Finally, We identified the PP2C phosphatase Pic1 that acts as a negative regulator of PTI by interacting with and dephosphorylating the receptor-like cytoplasmickinase Pti1, which is a positive regulator of plant immunity. The results of this investigation shed new light on the molecular characteristics and interactions of components of the immune system of crop plants providing new knowledge and tools for development of novel strategies for disease control.
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