Relevant bibliographies by topics / GAFT

Academic literature on the topic 'GAFT'

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Published: 9 March 2023

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Journal articles on the topic "GAFT"

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Abbring, Jaap H., and Geert Ridder. "REGULAR VARIATION AND THE IDENTIFICATION OF GENERALIZED ACCELERATED FAILURE-TIME MODELS." Econometric Theory 31, no. 6 (September 16, 2014): 1229–48. http://dx.doi.org/10.1017/s0266466614000474.

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Ridder (1990, Review of Economic Studies 57, 167–182) provides an identification result for the Generalized Accelerated Failure-Time (GAFT) model. We point out that Ridder’s proof of this result is incomplete, and provide an amended proof with an additional necessary and sufficient condition that requires that a function varies regularly at 0 and ∞. We also give more readily interpretable sufficient conditions on the tails of the error distribution or the asymptotic behavior of the transformation of the dependent variable. The sufficient conditions are shown to encompass all previous results on the identification of the Mixed Proportional Hazards (MPH) model. Thus, this paper not only clarifies, but also unifies the literature on the nonparametric identification of the GAFT and MPH models.
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Han, Duck J., Song C. Kim, Yu M. Wee, Ah Y. Lee, and Kwang Nho. "PROLONGATION OF ISLET GAFT SURVIVAL BY ACTIVATED POLYETHYLENE GLYCOL AT THE CELL SURFACE." Transplantation 76, Supplement (August 2003): S67. http://dx.doi.org/10.1097/00007890-200308271-00149.

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Myers, Jonny E., Janine Aron, and Ian A. Macun. "Asbestos and Asbestos-Related Disease: The South African Case." International Journal of Health Services 17, no. 4 (October 1987): 651–66. http://dx.doi.org/10.2190/gaft-l33e-m250-anqf.

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The asbestos industry in South Africa has suffered a decline in production, employment, and sales over the last few years. This mirrors the state of the industry internationally. In South Africa this has more to do with the economic recession than with legislative restrictions on asbestos use. New information has become available on the extent of asbestos-related diseases in South Africa. In this article, we outline developments in labor organization in the asbestos industry, and discuss the marked lack of control of asbestos, the inadequate state compensation system, and the difficulties facing labor. After describing recent improvements won by trade unions, mainly in the transnational corporation sector, we discuss the implications for industry, labor, and control of the asbestos hazard.
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Kerimova, Sabina. "Communication strategies and tactics of epigrams of pejorative direction in the works of V. Gaft." Current Issues in Philology and Pedagogical Linguistics 36, no. 4 (December 25, 2019): 27–33. http://dx.doi.org/10.29025/2079-6021-2019-4-27-33.

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OGATA, Tomonari, Seiji KURIHARA, and Takamasa NONAKA. "Preparation and Properties of Poly(vinyl alcohol)-gaft-N-isopropylacrylamide and Other Monomers Terpolymer Membranes." NIPPON KAGAKU KAISHI, no. 11 (1995): 909–15. http://dx.doi.org/10.1246/nikkashi.1995.909.

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Glass, B., L. Uharek, W. Gassmann, B. Focks, H. Bolouri, H. Loeffler, and W. Mueller-Ruchholtz. "Gaft-versus-leukemia activity after bone marrow transplantation does not require graft-versus-host disease." Annals of Hematology 64, no. 6 (June 1992): 255–59. http://dx.doi.org/10.1007/bf01695466.

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Chen, Shu, Zhiwei Hu, Kailun Zhang, Wei Su, and Zongquan Sun. "Effect of Troglitazone on expression of adhesion molecules and eNOS in human saphenous vein gaft." Journal of Huazhong University of Science and Technology [Medical Sciences] 27, no. 6 (December 2007): 657–59. http://dx.doi.org/10.1007/s11596-007-0609-9.

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Abensur, Eder Oliveira. "Um modelo multiobjetivo de otimização aplicado ao processo de orçamento de capital." Gestão & Produção 19, no. 4 (December 2012): 747–58. http://dx.doi.org/10.1590/s0104-530x2012000400007.

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O processo de orçamento de capital envolve a análise e seleção de projetos de longo prazo de maturação. Essas decisões de investimento são tradicionalmente feitas pela aplicação simultânea de vários métodos financeiros com uso de fluxo de caixa descontado como, por exemplo, o Valor Presente Líquido (VPL) e a Taxa Interna de Retorno (TIR). Apesar da longa e ampla disseminação dessas técnicas, são notórios os problemas de avaliação especialmente quando consideradas funções mono-objetivas e projetos mutuamente excludentes. Em se tratando de decisões financeiras, parece ilusório falar em otimização sem considerar múltiplos objetivos e atributos. O objetivo deste trabalho é propor um modelo matemático multiobjetivo prático que auxilie na seleção de projetos de investimento submetidos simultaneamente a vários indicadores de desempenho que incorpora uma nova medida de risco (GAFT). Os testes foram feitos sobre uma amostra de quarenta e cinco projetos e os resultados demonstram que o modelo proposto é uma ferramenta gerencial prática e promissora.
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Jørgensen, Jens-Erik, Yaroslav Filinchuk, and Vladimir Dmitriev. "Tilting of semi-rigid GaF6 octahedra in GaF3 at high pressures." Powder Diffraction 32, S1 (January 12, 2017): S69—S73. http://dx.doi.org/10.1017/s0885715616000701.

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The VF3-type compound GaF3 has been studied by high-pressure angle-dispersive X-ray diffraction in the pressure range from 0.0001 to 10 GPa. The compression mechanism was found to be highly anisotropic. The c-axis shows little pressure dependence (≈0.4%), but exhibits negative linear compressibility up to ≈3 GPa where it achieves its maximum length. In contrast, the length of the a-axis is reduced by ≈8.8% at the highest measured pressure and an anomalous reduction in the linear compressibility is observed at 4 GPa. The zero pressure bulk modulus B0 was determined to B0 = 28(1) GPa. The compression mechanism of GaF3 is discussed in terms of deformation of an 8/3/c2 sphere-packing model. The volume reduction of GaF3 is mainly achieved through coupled rotations of the GaF6 octahedra within the entire measured pressure range, which reduces the volume of the cubooctahedral voids. In addition, the volume of the GaF6 octahedra also decreases for p ≲ 4.0 GPa, but remains constant above this pressure. The volume reduction of the GaF6 octahedra is accompanied by an increasing octahedral strain. Isosurfaces of the procrystal electron density are used for visualization of the cubooctahedral voids at different pressures.
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Xu, Qian-Zhao, Pavlo Bielytskyi, James Otis, Christina Lang, Jon Hughes, Kai-Hong Zhao, Aba Losi, Wolfgang Gärtner, and Chen Song. "MAS NMR on a Red/Far-Red Photochromic Cyanobacteriochrome All2699 from Nostoc." International Journal of Molecular Sciences 20, no. 15 (July 26, 2019): 3656. http://dx.doi.org/10.3390/ijms20153656.

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Unlike canonical phytochromes, the GAF domain of cyanobacteriochromes (CBCRs) can bind bilins autonomously and is sufficient for functional photocycles. Despite the astonishing spectral diversity of CBCRs, the GAF1 domain of the three-GAF-domain photoreceptor all2699 from the cyanobacterium Nostoc 7120 is the only CBCR-GAF known that converts from a red-absorbing (Pr) dark state to a far-red-absorbing (Pfr) photoproduct, analogous to the more conservative phytochromes. Here we report a solid-state NMR spectroscopic study of all2699g1 in its Pr state. Conclusive NMR evidence unveils a particular stereochemical heterogeneity at the tetrahedral C31 atom, whereas the crystal structure shows exclusively the R-stereochemistry at this chiral center. Additional NMR experiments were performed on a construct comprising the GAF1 and GAF2 domains of all2699, showing a greater precision in the chromophore–protein interactions in the GAF1-2 construct. A 3D Pr structural model of the all2699g1-2 construct predicts a tongue-like region extending from the GAF2 domain (akin to canonical phytochromes) in the direction of the chromophore, shielding it from the solvent. In addition, this stabilizing element allows exclusively the R-stereochemistry for the chromophore-protein linkage. Site-directed mutagenesis performed on three conserved motifs in the hairpin-like tip confirms the interaction of the tongue region with the GAF1-bound chromophore.
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Dissertations / Theses on the topic "GAFT"

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CATINO, LUIGI. "COMBINED STUDY OF SEGMENTAL MOTIONS AND THE MOTION OF THE BODY CENTER OF MASS DURING WALKING: NORMATIVE DATA AND APPLICATIONS TO FUNCTIONAL DIAGNOSIS AND TREATMENT IN REHABILITATION MEDICINE." Doctoral thesis, Università degli Studi di Milano, 2021. http://hdl.handle.net/2434/820051.

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In the present Thesis, walking was analyzed at various velocities in healthy participants, adults and children, on a split-belt treadmill mounted on 3D force sensors. Each belt can rotate at a different velocity, thus inducing artificial claudication. Conventional kinematic (optoelectronic) and surface EMG recordings from several lower limbs muscles were conducted. This experimental setting allowed to investigate both the motion of the body system as a whole (represented by its centre of mass, CoM) and the power provided by lower limb muscles (mostly, the plantar flexors). Various branches of an experimental campaign demonstrated that: a) a lateral shrinking of the CoM path is demonstrated with increasing age in children from 5 to 13 years. The lateral CoM oscillation/velocity function looks like a promising index of neural maturation. b) In adults, the 3D trajectory of the CoM implies a sharp U-turn (radius of curvature as small as 2 mm) at the beginning of the left-to-right (or vice-versa) oscillation, implying demanding muscular coordination. This curvature looks like a promising index of balance during walking. c) The claudication induced by “split” walking causes temporal asymmetries (“escape limp”) analogous to those found in pathologic claudication (shorter stance time, on the faster belt) but opposite spatial and dynamic asymmetries (longer posterior step and higher pantar flexors’ power, on the faster belt). d) The average velocity of the CoM on split-belt treadmills is different from the mean velocity between the belts. This velocity depends on the time spent by the point of application of the resulting ground reaction force on either belt. This implies that errors were made in the Literature, comparing split walking with tied walking at the mean velocity between the two belts. e) A representative unilaterally paretic patient has been analyzed to give an idea of the feasibility and the potential usefulness of the combined segmental and CoM analysis on split-belt treadmills. Overall, the series of experiments paves the way to a more soundly based analysis of pathologic gaits.
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Mjaaland, Bendik Bjørklid. "Gait Mimicking : Attack Resistance Testing of Gait Authentication Systems." Thesis, Norwegian University of Science and Technology, Department of Telematics, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-8977.

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Biometric technology is rapidly evolving in today's society. A large part of the technology has its roots hundreds, or even thousands of years back in time, while other parts are new and futuristic. Research suggest that individuals can be identified by the way they walk, and this kind of biometrics, gait biometrics, is a rather new and definitely intriguing field. However, the technology is far from mature; the performance is not generally competitive to other biometrics, and it has not been thoroughly tested security-wise. This thesis aims to test the security strength of gait biometrics. It will focus on imitation, or mimicking of gait. The bottom line question is whether it is possible to learn to walk like someone else. If this turns out to be easy, it will have a severe effect on the potential of gait as an authentication mechanism in the future. The report is logically twofold. In one part, the reader is brought up to speed on the field of gait biometrics, and a software tool for gait authentication is developed and presented. Second, an experiment is conducted, involving extensive training of test subjects, and using sources of feedback like video and statistical analysis. The data is analyzed by regression, and the goal is to determine whether or not the participants are increasing their mimicking skills, or simply put: if they are learning. The first part of the experiment involves 50 participants that are successfully enrolled using the developed software. The results compete with state of the art gait technology, with an EER of 6.2%. The rest of the experiment is related to mimicking, and the thesis discovers that six out of seven participants seem to have a natural boundary to their performance, a "plateau", forcing them back whenever they attempt to improve further. The location of this plateau predetermines the outcome of an attack; for success it has to lie below the acceptance threshold corresponding to the EER. Exactly one such boundary is identified for almost all participants, but some data also indicate that more than one plateau can exist simultaneously. The final result however, is that a very limited amount of learning is present, not nearly enough to pose a threat to gait biometrics. Gait mimicking is a hard task, and our physiology works against us when we try to adopt specific gait characteristics.

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Sabir, Azhin Tahir. "Human gait recognition under neutral and non-neutral gait sequences." Thesis, University of Buckingham, 2015. http://bear.buckingham.ac.uk/115/.

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Rapid advances in biometrics technology makes their use for person‘s identity more acceptable in a variety of applications, especially in the areas of the interest in security and surveillance. The upsurge in terrorist attacks in the past few years has focused research on biometric systems that have the ability to identify individuals from a distance, and this is spearheading research interest in Gait biometric due to being unobtrusive and less dependent on high image/video quality. Gait biometric is a behavioral trait that aims to identify individuals from image sequences based on their walking style. The growing list of possible civil as well as security applications for various purposes is paralleled by the emergence of a variety of research challenges in dealing with a various external as well as internal factors influencing the performance of Gait Recognition (GR) in unconstrained recording conditions. This thesis is concerned with Gait Recognition in unconstrained scenarios aims to address research questions covering (1) The selection of sets of features for a gait signature; (2) The effects of gender and/or recoding condition case (neutral, carrying a bag, coat wearing) on the performance of GR schemes; (3) Integrating gender and/or case classifications into GR; and (4) The role of emerging Kinect sensor technology, with its capability of sensing human skeletal features in GR and applications. Accordingly, our objectives will focus on investigating, developing and testing the performance of using a variety of gait sequencefeatures for the various components/tasks and their integration. Our tests are based on large number of experiments based on CASIA B database as well as an in-house database of Kinect sensor recording. In all experiments, we use different dimension reduction and feature selection methods do reduce the dimensions in these proposed feature vectors, such as Principal Component Analysis (PCA), Linear Discriminant Analysis (LDA) and Fisher Score, followed by different classification methods like; k-nearest-neighbour (k-NN), Support Vector Machine (SVM), Naive Bayes and linear discriminant classifier (LDC), to test the performance of the proposed methods. The initial part is focused on reviewing existing background removal for indoor and outdoor scenarios and developing more efficient versions primarily by adopting the work for wavelet domain rather than the traditional spatial domain based schemes. These include motion detection by frame differencing and Mixture of Gaussians, the latter being more reliable for outdoor scenarios. Subsequently, we investigated a variety of features that can be extractedfrom various subbands of wavelet-decomposed frames of different body parts (partitioned according to the golden ratio). We gradually built sets of features, together with their fused combinations, that can categorized as hybrid of model-based and motion-based models. The first list of features developed to deal with Neutral Gait Recognition (NGR) includes: Spatio-Temporal Model (STM), Legs Motion Detection Feature (LMD), and the Statistical model of the approximation LL-wavelet subband images (AWM). We shall demonstrate that fusing these features achieves accuracy of 97%, which is comparable to the state of the art. These features will be shown to achieve 96% accuracy in gender classification (GC), and we shall establish that the NGR2 scheme that integrates GC into NGR improves the accuracy by a noticeable percentage. Testing the performance of these NGR schemes in recognising non-neutral cases revealed the challenges of Unrestricted Gait Recognition (UGR). The second part of the thesis is focused on developing UGR schemes. For this, first a new statistical wavelet feature set extracted from high frequency subbands, called Detail coefficients Wavelet Model (DWM) was added to the previous list. Using different combinations of these schemes, will be shown to significantly improve the performance for non-neutral gait cases, but to less extent in the coat wearing case. We then develop a Gait Sequence Case Detection (GSCD) which has excellent performance. We will show that integrating GSCD and GC together into UGR improves the performance for all cases. We shall also investigate the different UGS scheme that generalizes existing work on Gait Energy and Gait Entropy images (GEI and GEnI) features but in the wavelet domain and in different body parts. Testing these two schemes, and their fusion, post the PCA dimension reduction yield much improved accuracy for the non-neutral cases compared to existing scheme GEI and GEnI schemes, but are significantly outperformed by the last scheme. However, by fusing the UGS scheme with the GSCD+GC+UGR scheme above we will get best accuracy that outperform the state of the art in GR specially in the non-neutral cases. The thesis ended by conducting a rather limited investigation on the use of the Kinect sensors for GR. We develop two sets of features: Horizontal Distance Features and Vertical Distance Features from small set of skeleton point trajectories. The experimental result on neutral was very successful but for the unrestricted gait recognition (with the 5 case variations) satisfactory but not optimal performance relies on the gallery including balanced number of samples from all cases.
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Corr, Sandra A. "Avian gait analysis." Thesis, University of Glasgow, 1999. http://theses.gla.ac.uk/6629/.

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Two methods were used in this research. The pedobarograph is a relatively novel method of gait analysis for animals which enables footfall patterns to be recorded, enabling spatial parameters (step length, width and angle) and plantar pressure patterns to be described and measured. A Kistler force plate was then used to measure the three-dimensional ground reaction forces (GRF's) produced during walking. Speed and cadence can be calculated using either system. Gait patterns are described for normal birds, and for different strains of broilers, raised on different feeding regimes. All the gait parameters were very variable, both between birds, and within the same bird, even when bodyweight and speed were controlled for. Despite the high variability, however, significant differences were identified in many of the gait parameters between the different groups. The vertical and craniocaudal GRF's of Brown Leghorns showed similar characteristics to those produced in human walking. The peak vertical forces were of a similar order of magnitude in the birds as in humans (125-150 % bodyweight), and the peak craniocaudal forces, and the rate of change of force, were closely tied to speed. All the GRF's in the birds increased significantly with increasing speed, except for braking rate (which was more variable) and stance time (which decreased significantly). The mediolateral forces were much greater in the birds than have been reported for other species, however, with peaks of 10-22% bodyweight. Analysis of plantar pressures showed that the pressure were concentrated on the digital pads, with the lowest pressure on the metatarsal pad (131 kNm-2), and highest pressure on the medial toe (up to 218 kNm-2).Combined gait analysis and morphometric studies of ad libitum-fed selected broilers identified many ways in which their gait deviated from that of relaxed broilers and Brown Leghorns, in ways which would serve to increase stability and decrease stresses on the skeleton.
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Datta, Ankur. "Gait Based Recognition." Honors in the Major Thesis, University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/436.

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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf
Bachelors
Engineering and Computer Science
Computer Science
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Kagawa, Takahiro, and Yoji Uno. "Gait pattern generation for a power-assist device of paraplegic gait." IEEE, 2009. http://hdl.handle.net/2237/13886.

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Ma, Weizen. "Instrumentation of Gait Analysis." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-28759.

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This master’s thesis project “Instrumentation of Gait Analysis” was carried out at and funded by Integrum AB, Gothenburg, Sweden. Force analysis is critical during rehabilitation process of amputation patients, since overloading might place the bone-implant interface at risk; while underloading might extend unnecessarily the already long rehabilitation program [1]. Highly developed sensor and data acquisition technology provides an easy and reliable way to do force analysis. This thesis introduces the problem and provides background material regarding Orthotics and Prosthetics, including osseointegration. The existing gait analysis techniques and sensor technology will be described. Based upon the criteria that are introduced, a suitable sensor and integration platform was selected to implement a new gait analysis system. Several trials of different gait states are proposed using the prototype to do gait analysis, the results are presented and analyzed. The success of this prototype has lead to plans to design an Osseointegrated Prostheses for the Rehabilitation of Amputees(OPRA) product
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Wu, Gang. "Socialist states and GATT." Thesis, University of Ottawa (Canada), 1991. http://hdl.handle.net/10393/7810.

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The purpose of the socialist states' participation in world trade systems was to expand trade with Western countries by elimination of discriminatory treatment imposed by the West. Although China is an original member of GATT, the new government had not been able to participate in GATT activities and had been kept away from the multilateral trade system ever since its inception. It had been subject to the constraints of a special Western trade control policy, which facilitated the formation of the highly centralized economic system in China. There are six socialist member states in GATT. They are Czechoslovakia, Yugoslavia, Poland, Romania, Hungary and Cuba. Since 1980 China has been considering the pros and cons of GATT membership. Although China is an original member of GATT, the new government of the PRC has not participated in GATT activities for thirty years. By seeking GATT membership, China hopes to eliminate various kinds of discriminatory quantitative restrictions, to enjoy the MFN treatment of GATT to play a major role in world trade, to learn how to do business in multilateral trade system and to protect its interest through GATT systems. China's position towards GATT membership is resumption, not accession. It wants to become a member on the basis of tariff concession and to enjoy GSP treatment. (Abstract shortened by UMI.)
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Sigurnjak, S. K. "Biometric verification using gait." Thesis, Manchester Metropolitan University, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.592681.

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The work presented within this document details the development of a novel gait verification system suitable for a variety of applications such as human motion studies, medical analysis and security situations. The human gait is a spatio temporal process involving the coordination and interaction between the nervous, skeletal and muscular systems. Due to inherent variations in the limb lengths, muscle strengths and body mass gait is inherently individual. To develop a suitable feature extraction process a virtual gait laboratory was developed. The virtual laboratory contains virtual character templates articulated with a 32 bone skeleton system using motion capture data. Data was extracted from the character as a series of X, Y and Z translations for pro cessing. The virtual laboratory allows the testing of data extraction processes without the need for direct testing on human subjects. Feature extraction was performed using Principal Component Analysis (PCA). PCA allows data to be compressed and describes as a series of principal scores (PC) containing the weightings of the data. Feature extraction was performed on human subjects with the motions applied to a skeletal system containing individual physical dimensions. A second set of features was created by applying the motions to a single skeletal system. This removed the interpersonal variations from the dataset to explore the difference in classification when these variables have been removed. Overall generic motions are present within the first PC score. Higher PC scores contain unique motion characteristics suitable for classification of the subject s within a database. To verify a subject within the database Linear Discriminant Analysis (LOA) was performed. LOA projects data as a linear combination of features using a t raining data set of known outcomes. A subsequent sample can then be projected into the linear space for classification and verification of the subject within the database.
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Lee, Lily 1971. "Gait analysis for classification." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/8116.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
Includes bibliographical references (p. 121-124).
This thesis describes a representation of gait appearance for the purpose of person identification and classification. This gait representation is based on simple localized image features such as moments extracted from orthogonal view video silhouettes of human walking motion. A suite of time-integration methods, spanning a range of coarseness of time aggregation and modeling of feature distributions, are applied to these image features to create a suite of gait sequence representations. Despite their simplicity, the resulting feature vectors contain enough information to perform well on human identification and gender classification tasks. We demonstrate the accuracy of recognition on gait video sequences collected over different days and times, and under varying lighting environments. Each of the integration methods are investigated for their advantages and disadvantages. An improved gait representation is built based on our experiences with the initial set of gait representations. In addition, we show gender classification results using our gait appearance features, the effect of our heuristic feature selection method, and the significance of individual features.
by Lily Lee.
Ph.D.
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Books on the topic "GAFT"

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Laighléis, Ré Ó. Gafa. [Ballyvaughan, Co. Clare, Ireland?]: Móinín, 2004.

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Correa, E. Shan. Gaff. Atlanta, [GA]: Peachtree, 2010.

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Correa, E. Shan. Gaff. Atlanta, [GA]: Peachtree, 2010.

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Correa, E. Shan. Gaff. Atlanta, [GA]: Peachtree, 2010.

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Correa, E. Shan. Gaff. Atlanta, [GA]: Peachtree, 2010.

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Correa, E. Shan. Gaff. Atlanta, [GA]: Peachtree, 2010.

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Correa, E. Shan. Gaff. Atlanta, [GA]: Peachtree, 2010.

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Correa, E. Shan. Gaff. Atlanta, [GA]: Peachtree, 2010.

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Correa, E. Shan. Gaff. Atlanta, [GA]: Peachtree, 2010.

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Laighléis, Ré Ó. Gafa. [Baile Átha Cliath]: Comhar, 1996.

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Book chapters on the topic "GAFT"

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Schagaev, Igor, and Thomas Kaegi-Trachsel. "Generalized Algorithm of Fault Tolerance (GAFT)." In Software Design for Resilient Computer Systems, 23–43. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29465-0_4.

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Schagaev, Igor, Eugene Zouev, and Kaegi Thomas. "Generalized Algorithm of Fault Tolerance (GAFT)." In Software Design for Resilient Computer Systems, 25–46. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-21244-5_4.

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Schagaev, Igor, and Thomas Kaegi-Trachsel. "GAFT Generalization: A Principle and Model of Active System Safety." In Software Design for Resilient Computer Systems, 45–55. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29465-0_5.

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Schagaev, Igor, Eugene Zouev, and Kaegi Thomas. "GAFT Generalization: A Principle and Model of Active System Safety." In Software Design for Resilient Computer Systems, 47–57. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-21244-5_5.

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Sear, David, and Malcolm Newson. "1 Fluvial geomorphology: its basis and methods." In Guidebook of applied fluvial geomorphology, 1–31. London: Thomas Telford Ltd, 2010. http://dx.doi.org/10.1680/gafg.34846.0001.

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Sear, David, and Malcolm Newson. "2 River processes and channel geomorphology." In Guidebook of applied fluvial geomorphology, 32–69. London: Thomas Telford Ltd, 2010. http://dx.doi.org/10.1680/gafg.34846.0002.

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Thorne, Colin, David Sear, and Malcolm Newson. "3 Driving forces I: Understanding river sediment dynamics." In Guidebook of applied fluvial geomorphology, 70–119. London: Thomas Telford Ltd, 2010. http://dx.doi.org/10.1680/gafg.34846.0003.

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Thorne, Colin, Philip Soar, Kevin Skinner, David Sear, and Malcolm Newson. "4 Driving processes II. Investigating, characterising and managing river sediment dynamics." In Guidebook of applied fluvial geomorphology, 120–95. London: Thomas Telford Ltd, 2010. http://dx.doi.org/10.1680/gafg.34846.0004.

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Newson, Malcolm, and David Sear. "5 Geomorphology and river ecosystems: Concepts, strategies and tools for managing river channels, floodplains and catchments." In Guidebook of applied fluvial geomorphology, 196–222. London: Thomas Telford Ltd, 2010. http://dx.doi.org/10.1680/gafg.34846.0005.

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Newson, Malcolm, and David Sear. "6 Case studies and outcomes of the application of geomorphological procedures." In Guidebook of applied fluvial geomorphology, 223–48. London: Thomas Telford Ltd, 2010. http://dx.doi.org/10.1680/gafg.34846.0006.

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Conference papers on the topic "GAFT"

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Zheng, D., A. T. Vieira, and J. M. Jarvis. "An Assessment of Margin in Design Steam Hammer Forces for Combined Cycle Power Plants." In 2002 International Joint Power Generation Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/ijpgc2002-26045.

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All combined cycle steam plants have rapid-closing stop valves in steam lines to protect the turbine. The rapid valve closure produces a steam hammer in the piping resulting in large forces for which the piping system and supporting structures need to be designed. These forces are typically calculated using the classical Method Of Characteristics (MOC) solution. An evaluation has been conducted which compares the forces computed using the classical methods with a best-estimate approach. This comparison has been done to define margin, and to benchmark and identify potential refinements in the techniques used for evaluating steam hammer loads. The best-estimate approach involves the use of the RELAP5 computer program. RELAP5 is used extensively in the Nuclear Industry to evaluate fast thermal hydraulic transients. It has the capability to analyze subcooled liquid, two-phase and saturated or superheated steam piping system. The models used in RELAP5 are best estimate results in comparison to the MOC solution which are mathematically derived from theory. The compressible flow program GAFT is used to obtain the MOC solution. The main steam line of a single Heat Recovery Steam Generator combined cycle plant is modeled with both the GAFT program and with a PC version of RELAP5. Identical piping lengths, mass flow rates, pressures are used in each model. Also, a stop valve closure time of 100 milliseconds is modeled. As RELAP5 output results are pressure, flow rate, velocity, and density, the resultant forces are generated using the R5FORCE program, a post-processor to compute associated transient forces on straight piping links. The GAFT program, which is specifically designed to compute steam hammer forces, computes the force history internally on straight piping lengths. A comparison of the peak force from GAFT and from RELAP for every piping link has been generated. Through the comparison, both RELAP5 and GAFT have been verified for the evaluation of rapid valve closure reaction loads. The comparison also shows that the classical method typically over-predicts the best-estimate solution by 15% to 20% for straight piping links. Although not confirmed, a better agreement between the two methods would be expected if a more accurate steam sonic velocity correlation and valve closure model are incorporated into the classical solution. Theis study helps to quantify the degree of conservatism inherent in the classical approach.
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Banka, Asif Ali, and Ajaz Hussain Mir. "Human Gait and Gait Databases." In International Conference on Computer Applications — Database Systems. Singapore: Research Publishing Services, 2010. http://dx.doi.org/10.3850/978-981-08-7300-4_1503.

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Lin, Jian-Nan, and Shin-Min Song. "Modeling Gait Transitions of Quadruped and Their Generalization With CMAC Neural Networks." In ASME 2000 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/detc2000/mech-14124.

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Abstract The gait transition models of a quadruped are studied based on gait kinematics and CMAC neural networks are applied to learn and generalize these gait transition models. Three gait transition cases are studied: from wave gait to continuous follow-the-leader gait, from walk to trot, and from trot to gallop. Four solution methods are proposed for solving the gait transition models. Computer simulations are conducted to evaluate and display the gait transition models. The good transition gaits are then selected to train CMAC neural network gait transition models. The performance of the CMAC gait transition models are evaluated and found to be satisfactory.
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Gragg, Jared. "Predicting the Probability of Slip in Gait: Ramp Walking." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-47562.

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When predicting the probability of a slip in gait, previous researchers have only considered level gait. There are no known attempts to apply probabilistic theory to predict the probability of a slip on ramped surfaces, even though there is a larger friction requirement for ramp gait compared to level gait. It is shown that when predicting the likelihood of a slip in ramp gait, the maximum value of the required coefficient of friction (RCOF) over the entire step must be considered. This is in contrast to level gait, where only one of the local maxima of the RCOF time profile is considered. This study predicts the probability of slip in gait for both up-slope gait and down-slope gait and discusses the major differences between the two. In general, it is found that up-slope gait has a higher potential for slip compared to down-slope gait and level gait.
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Ghataoura, Darminder Singh, Yang Yang, and George Matich. "GAFO." In the 2009 International Conference. New York, New York, USA: ACM Press, 2009. http://dx.doi.org/10.1145/1582379.1582462.

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Arora, Parul, and Smriti Srivastava. "Gait recognition using gait Gaussian image." In 2015 2nd International Conference on Signal Processing and Integrated Networks (SPIN). IEEE, 2015. http://dx.doi.org/10.1109/spin.2015.7095388.

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Seo, Kap-Ho, Yongsik Park, Sungjo Yun, Sungho Park, Jungsoo Jun, and Kwang-Woo Jeon. "Gait pattern generation for gait rehabilitation." In 2013 10th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI). IEEE, 2013. http://dx.doi.org/10.1109/urai.2013.6677388.

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Bashir, K., Tao Xiang, and Shaogang Gong. "Gait recognition using gait entropy image." In 3rd International Conference on Imaging for Crime Detection and Prevention (ICDP 2009). IET, 2009. http://dx.doi.org/10.1049/ic.2009.0230.

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Babaee, Maryam, Linwei Li, and Gerhard Rigoll. "Gait Recognition from Incomplete Gait Cycle." In 2018 25th IEEE International Conference on Image Processing (ICIP). IEEE, 2018. http://dx.doi.org/10.1109/icip.2018.8451785.

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Wang, Ya, Ping Ren, and Dennis Hong. "Gait and Gait Transition for a Robot With Two Actuated Spoke Wheels." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86923.

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This paper presents work on the gait and gait transition analysis for a novel mobile robot that uses two actuated spoke wheels. Gait transitions, known as acyclic feed forward patterns, allow the robot to switch from one type of gait to another during walking and turning. The mobile robot IMPASS (Intelligent Mobility Platform with Active Spoke System) uses a unique mobility concept for locomotion, thus gait transition plays an important role in generating gait patterns to walk and turn. The primary focus of this paper is how to perform gait transition between gaits in walking direction. First, the basic gait patterns for steering and straight line walking are presented. More specifically, the critical gait parameterizations and the possible foot positions in different gait patterns to produce capable steering locomotion over terrain are presented. Since IMPASS is expected to utilize its metamorphic configurations to carry out gait transitions, the extending forward and inverse analyses are also presented based on previous work about topology classification and mobility analysis for IMPASS. Then the gait transition analysis and simulation of typical patterns are performed. The results from this work lay the foundation for the future research on trajectory and path planning for IMPASS.
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Reports on the topic "GAFT"

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Brown, Ashleigh. Gait. Brooke, November 2020. http://dx.doi.org/10.46746/gaw.2020.abi.gait.

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Bagwell, Kyle, and Robert Staiger. GATT-Think. Cambridge, MA: National Bureau of Economic Research, November 2000. http://dx.doi.org/10.3386/w8005.

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Koch, Mark William. Recognition using gait. Office of Scientific and Technical Information (OSTI), September 2007. http://dx.doi.org/10.2172/922087.

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Vaughan, Phillip, Golnar Nabizadeh, Laura Findlay, Heather Doran, Niamh Nic Daeid, and Mark Brown. Understanding Forensic Gait Analysis #1. Edited by Chris Murray. University of Dundee, February 2020. http://dx.doi.org/10.20933/100001152.

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Weyand, Peter. Gait Dynamics and Locomotor Metabolism. Fort Belvoir, VA: Defense Technical Information Center, October 2011. http://dx.doi.org/10.21236/ada612318.

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Bagwell, Kyle, and Robert Staiger. An Economic Theory of GATT. Cambridge, MA: National Bureau of Economic Research, May 1997. http://dx.doi.org/10.3386/w6049.

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Abdel-Malek, Karim. Advanced Prosthetic Gait Training Tool. Fort Belvoir, VA: Defense Technical Information Center, October 2013. http://dx.doi.org/10.21236/ada602320.

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McCulloch, Rachel. Investment Policies in the GATT. Cambridge, MA: National Bureau of Economic Research, April 1991. http://dx.doi.org/10.3386/w3672.

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Kovenock, Dan, and Marie Thursby. GATT, Dispute Settlement and Cooperation. Cambridge, MA: National Bureau of Economic Research, May 1992. http://dx.doi.org/10.3386/w4071.

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Kowalczyk, Carsten, and Tomas Sjostrom. Bringing GATT into the Core. Cambridge, MA: National Bureau of Economic Research, April 1993. http://dx.doi.org/10.3386/w4343.

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