Academic literature on the topic 'Horizontal and vertical progression'

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Journal articles on the topic "Horizontal and vertical progression"

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Ma, Hui-Ing, Wen-Juh Hwang, Shao-Hsia Chang, and Tsui-Ying Wang. "Progressive Micrographia Shown in Horizontal, but not Vertical, Writing in Parkinson’s Disease." Behavioural Neurology 27, no. 2 (2013): 169–74. http://dx.doi.org/10.1155/2013/212675.

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All published studies on micrographia, a diminution of letter size, examine handwriting in the horizontal direction. Writing horizontally typically requires increased wrist extension as handwriting progresses from left to right. Chinese characters, however, can be written not only horizontally from left to right, but also vertically from top to bottom. We examined the effect of handwriting direction on character size and stroke length. Fifteen participants with Parkinson’s disease (PD) and 15 age-matched controls wrote the same Chinese characters both horizontally and vertically. Handwriting p
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Albert, Wayne J., and Doris I. Miller. "Takeoff Characteristics of Single and Double Axel Figure Skating Jumps." Journal of Applied Biomechanics 12, no. 1 (1996): 72–87. http://dx.doi.org/10.1123/jab.12.1.72.

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Takeoff kinematics of axel jumps were determined from a spatial analysis of singles and doubles performed by 16 figure skaters. The takeoff was divided into glide, transition, and pivot phases. During the glide, horizontal speed remained constant, vertical velocity was slightly negative, and over half the angular momentum for flight was generated. In the transition, skaters gained considerable vertical velocity from tangential motion by rotating about the long axis of the blade, Initially this reduced the angle of the support leg with respect to the vertical while the blade ran in the directio
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Malm, Joakim, Lennart Grahn, Dmitry Mironov, and Arkady Terzhevik. "Field Investigation of the Thermal Bar in Lake Ladoga, Spring 1991." Hydrology Research 24, no. 5 (1993): 339–58. http://dx.doi.org/10.2166/nh.1993.12.

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The thermal bar in Lake Ladoga was studied during one week in May 1991. Temperature and current velocity distributions were measured. The movement of the thermal bar and the horizontal heat transport were examined. The temperature off-shore the thermal bar was found to be constant within a vertical. The velocity distributions were complex and dependent on wind conditions. Calculations of changes in heat content showed that there was a horizontal heat transport from the near-shore warm zone towards the thermal bar. The observed off-shore progression of the thermal bar was compared with analytic
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Nyassor, Prosper K., Cristiano M. Wrasse, Igo Paulino, et al. "Momentum flux characteristics of vertically propagating gravity waves." Atmospheric Chemistry and Physics 25, no. 7 (2025): 4053–82. https://doi.org/10.5194/acp-25-4053-2025.

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Abstract. Momentum flux and propagation dynamics of two vertically propagating atmospheric gravity waves (GWs) are studied using observations at São João do Cariri (7.40° S, 36.31° W), Brazil, from co-located photometer, all-sky imager, and meteor radar instruments. Time series of the atomic oxygen green line (OI 557.7 nm), molecular oxygen (O2 (0–1)), sodium D-line (NaD), and hydroxyl (OH (6–2)) airglow intensity variations measured by the photometer were used to investigate the vertical characteristics and vertical phase progression of the GWs with similar (± 10 % of the error margin) or nea
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Dong, Li Chang, and Lai Wang. "Effects of Braces on Progressive Collapse Resistance of Steel Frame." Applied Mechanics and Materials 578-579 (July 2014): 369–73. http://dx.doi.org/10.4028/www.scientific.net/amm.578-579.369.

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In order to carry on the progressive collapse analysis more properly, nonlinear-dynamic analysis method is used to analyze five-storey of steel frame structure. Four structure schemes have been established, namely frames, frames with horizontal braces, frames with vertical braces and frames with horizontal cross braces. According to analyzing with different position of failure column on the first floor, the curves of displacement-time of column failure point and axial force of failure column’s neighboring are obtained. The results indicate that horizontal braces can reduce the vertical displac
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Yakar, Derya, Marieke Haan, Yfke P. Ongena, et al. "Overcoming barriers to career progression for mid-career female physician-scientists: Insights and solutions." F1000Research 13 (June 11, 2024): 619. http://dx.doi.org/10.12688/f1000research.148919.1.

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Background Gender equity in academia is a significant challenge. To investigate career advancement perspectives of mid-career female physician-scientists, identify their needs and barriers, and develop a mentor-sponsorship strategy to improve their representation in higher academic ranks. Methods In this qualitative study, conducted at a Western European academic medical center, we interviewed 19 mid-career female physician-scientists across all specialties, including radiology. Data were analyzed using thematic analysis. Results Four themes were identified: 1. Horizontal and vertical ambition
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Toyne, J. Marla, Armando Anzellini, Lori Epstein Mičulka, Ismael Mejías Pitti, Jordi Puig Castell, and Salvador Guinot Castelló. "Going Vertical." Advances in Archaeological Practice 6, no. 4 (2018): 298–311. http://dx.doi.org/10.1017/aap.2018.31.

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ABSTRACTMost archaeological practice involves horizontal excavations of ancient occupations and cemeteries, but the Chachapoya of Peru's eastern montane built tombs along narrow cliff ledges, which require innovative methods of investigation. Many of these sites are becoming exposed and threatened due to increased deforestation. The La Petaca mortuary complex includes 125 constructed platforms, modified ledges, mausoleums, and caves containing human remains across one section of an exposed rock face approximately 200 m across by approximately 80 m high. While the site has been looted and damag
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Cabral, Thiago, Jose Ronaldo Lima de Carvalho, Joonpyo Kim, et al. "Comparative Analysis of Functional and Structural Decline in Retinitis Pigmentosas." International Journal of Molecular Sciences 21, no. 8 (2020): 2730. http://dx.doi.org/10.3390/ijms21082730.

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Retinitis pigmentosa (RP) is a category of inherited retinal dystrophies that is best prognosticated using electroretinography (ERG). In this retrospective cohort study of 25 patients with RP, we evaluated the correlation between 30 Hz flicker ERG and structural parameters in the retina. Internationally standardized 30 Hz flicker ERG recordings, short-wavelength autofluorescence (SW-AF), and spectral domain–optical coherence tomography (SD-OCT) were acquired at two visits at least one year apart. Vertical and horizontal hyperautofluorescent ring diameter measurements with SW-AF, as well as ell
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Moțățăianu, Anca, Sebastian Andone, Adina Stoian, Rodica Bălașa, Adina Huțanu, and Emanuela Sărmășan. "A Potential Role of Interleukin-5 in the Pathogenesis and Progression of Amyotrophic Lateral Sclerosis: A New Molecular Perspective." International Journal of Molecular Sciences 25, no. 7 (2024): 3782. http://dx.doi.org/10.3390/ijms25073782.

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Cumulative data suggest that neuroinflammation plays a prominent role in amyotrophic lateral sclerosis (ALS) pathogenesis. The purpose of this work was to assess if patients with ALS present a specific peripheral cytokine profile and if it correlates with neurological disability assessed by ALSFRS-R, the rate of disease progression, and the pattern of disease progression (horizontal spreading [HSP] versus vertical spreading [VSP]). We determined the levels of 15 cytokines in the blood of 59 patients with ALS and 40 controls. We identified a positive correlation between levels of pro-inflammato
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Yoshikura, Hiroshi. "Persistence of Measles Transmission despite of Measles Elimination Program Progressing." Epidemiology International Journal 7, no. 1 (2023): 1–4. http://dx.doi.org/10.23880/eij-16000256.

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The number of measles cases per million was plotted in linear scale or in logarithmic scale in the vertical axis along years from 1974 to 2021 in the horizontal axis. In the linear scale plot, measles cases persisted with consecutive peaks till early 1990s and then became invisible. In logarithmic scale plot, the plots were horizontally distributed at high level till early 1990s and declined to lower level with ups and downs. Though proportion of measles cases in older population gradually increased over time, as of 2021, the number of measles cases was still correlated with population size of
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Dissertations / Theses on the topic "Horizontal and vertical progression"

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Ricketts, Robert C. (Robert Carlton). "Alternative Social Security Taxing Schemes: an Analysis of Vertical and Horizontal Equity in the Federal Tax System." Thesis, University of North Texas, 1988. https://digital.library.unt.edu/ark:/67531/metadc331574/.

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The objectives of this study were twofold. One objective was to analyze the effects of growth in the social security tax, when combined with recent changes in U.S. income tax law, on the distribution of the combined income and social security tax burden during the 1980s. The second objective was to estimate the effects of certain proposals for social security tax reform upon that distribution. The above analyses were performed using simulation techniques applied to the 1984 IRS Individual Tax Model File. The data from this file were used to estimate the income and social security tax liabiliti
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Hamdan, May. "Horizontal and Vertical Concept Transitions." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-82539.

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Suriamihardja, Dadang Ahmad. "2-D Horizontal and Vertical Nearshore Circulation." Kyoto University, 1989. http://hdl.handle.net/2433/138428.

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Tolonen, A. (Arto). "Product portfolio management over horizontal and vertical portfolios." Doctoral thesis, Oulun yliopisto, 2016. http://urn.fi/urn:isbn:9789526212678.

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Abstract The main objective of this study is to clarify the current challenges and preconditions relating to product portfolio management (PPM) and widen the PPM framework over horizontal and vertical portfolios, including a related governance model, strategic performance management and the PPM process. This study analyses comprehensively the current PPM literature and the relevant practices of 10 case companies representing business areas such as hardware (HW), software (SW) and Services. This study approaches PPM from a more comprehensive viewpoint as all product life cycle phases and produc
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Hirpa, Dessalegn Amenu. "Simultaneous optimization of vertical and horizontal road alignments." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/47585.

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Optimization of three-dimensional road alignments is recognized as a nonlinear and nonconvex optimization problem. The development of models that fully optimize a three-dimensional road alignment problem is not yet successful, because there are many factors involved and complexities in the geometric specification of the alignment. At present, there are two optimization approaches, the models that simultaneously optimize horizontal and vertical alignments, and those employing two or more stages of optimization processes. In this thesis, we develop a novel approach of solving a three dim
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Proença, Ércio Roberto [UNESP]. "Concentração, integração horizontal e vertical das usinas canavieiras." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/106157.

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Made available in DSpace on 2014-06-11T19:35:16Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-10-22Bitstream added on 2014-06-13T19:24:45Z : No. of bitstreams: 1 proenca_er_dr_ilha.pdf: 1510196 bytes, checksum: f570ec9b6cba659c87e7286b7cd10c73 (MD5)<br>Universidade Estadual Paulista (UNESP)<br>A forte expansão do setor canavieiro, a partir dos anos 2000, na mesorregião de Araçatuba deu origem a esse estudo, para analisar como está se dando este crescimento, procurou-se responder às questões: está acontecendo à integração vertical e horizontal? Está ocorrendo concentração do setor? E
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Proença, Ércio Roberto. "Concentração, integração horizontal e vertical das usinas canavieiras /." Ilha Solteira, 2012. http://hdl.handle.net/11449/106157.

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Orientador: Maria Aparecida Anselmo Tarsitano<br>Banca: Rosalina Maria Alves Rapassi<br>Banca: Antonio Cesar Bolonhezi<br>Banca: Antonio Nivado Hespanhol<br>Banca: José Matheus Yalenti Perosa<br>Resumo: A forte expansão do setor canavieiro, a partir dos anos 2000, na mesorregião de Araçatuba deu origem a esse estudo, para analisar como está se dando este crescimento, procurou-se responder às questões: está acontecendo à integração vertical e horizontal? Está ocorrendo concentração do setor? Existem mudanças nos principais indicadores sociais e econômicos nos municípios? O estudo apresenta uma
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Andrade, Pinelo Antonio Miguel. "Análisis vertical y horizontal de los estados financieros." Universidad Peruana de Ciencias Aplicadas (UPC), 2011. http://hdl.handle.net/10757/609208.

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Bryant, Scott William. "Horizontal justice as a prerequisite to vertical worship." Theological Research Exchange Network (TREN), 2007. http://www.tren.com/search.cfm?p006-1537.

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Protsenko, Alexander. "Vertical and Horizontal Foreign Direct Investments in Transition Countries." Diss., lmu, 2004. http://nbn-resolving.de/urn:nbn:de:bvb:19-21058.

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Books on the topic "Horizontal and vertical progression"

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Wagstaff, Adam. Decomposing changes in income inequality into vertical and horizontal redistribution and reranking, with applications to China and Vietnam. World Bank, 2005.

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Oyor, G. F. Vertical and horizontal family curses. God-Will-Do-It Publications, 1999.

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Fazano, Haroldo Guilherme Vieira. Da propriedade: Horizontal e vertical. CS Edições, 2003.

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Woods, George Stephen. Vertical, near vertical and horizontal co-current multiphase flow. Department of Chemical Engineering, Queen's University of Belfast, 1996.

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Tooma, Michael. Due diligence: Horizontal and vertical consultation. CCH Australia Limited, 2012.

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1973-, Michiels Stani, ed. Jakarta Megalopolis: Horizontal and vertical observations. Valiz, Pub., 2007.

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Mujica, Christin A., and Ana J. Bridges. Horizontal and Vertical Racial/Ethnic Discrimination. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-33058-2.

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Bae, Sung-il. Complementarity of horizontal and vertical multinational activities. Korea Institute for International Economic Policy, 2004.

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D, Jayaraj. Horizontal and vertical inequality: Some interconnections and indicators. Madras Institute of Development Studies, 2004.

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Center, Langley Research, ed. Microburst vertical wind estimation from horizontal wind measurements. National Aeronautics and Space Administration, Langley Research Center, 1994.

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Book chapters on the topic "Horizontal and vertical progression"

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Yang, Zhenglong, Guozhong Wang, Tao Fan, and Guowei Teng. "Fast Intra Encoding Decisions Based on Horizontal-Vertical Progressive Gradient Accumulation for HEVC." In Communications in Computer and Information Science. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4211-9_25.

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Markiewicz, M., and O. Mahrenholtz. "Progressive cross waves due to the horizontal oscillations of a vertical cylinder in water. Evolution equations." In Floating, Flowing, Flying. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-1564-5_14.

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Némethi, András, and Ágnes Szilárd. "Vertical/Horizontal Monodromies." In Milnor Fiber Boundary of a Non-isolated Surface Singularity. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23647-1_13.

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Dewilde, Patrick. "Horizontal, Vertical, Especially Diagonal." In Communications, Computation, Control, and Signal Processing. Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-6281-8_9.

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Holmwood, John, and Alexander Stewart. "Vertical and Horizontal Fallacies." In Explanation and Social Theory. Palgrave Macmillan UK, 1991. http://dx.doi.org/10.1007/978-1-349-21627-7_4.

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Liu, Dun. "Vertical and Horizontal Beginnings." In A History of Chinese Science and Technology. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-662-44257-9_1.

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Shaw, Victor N. "Horizontal and Vertical Dimensions." In Three Worlds of Collective Human Experience: Individual Life, Social Change, and Human Evolution. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-98195-6_8.

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Morimoto, Shin-ichi. "Chapter 6. Horizontal + Vertical." In Beyond Babel. John Benjamins Publishing Company, 2022. http://dx.doi.org/10.1075/fillm.18.06mor.

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Pleter, Octavian Thor. "Vertical and Horizontal Navigation." In Air Navigation. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-52994-8_6.

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Duclos, Jean-Yves. "Horizontal and Vertical Equity." In The New Palgrave Dictionary of Economics. Palgrave Macmillan UK, 2008. http://dx.doi.org/10.1057/978-1-349-95121-5_1961-1.

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Conference papers on the topic "Horizontal and vertical progression"

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Wang, Fansheng, Shiming Yan, Tony Lu, and Yanhui Li. "Vertical and Horizontal Profile Control in STI Etch." In 2025 Conference of Science and Technology of Integrated Circuits (CSTIC). IEEE, 2025. https://doi.org/10.1109/cstic64481.2025.11017971.

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Michasiow, John, Zachary August, and David Hauber. "Thermoplastic Composite Driveshafts for Vertical Flight: Progression to TRL 6." In Vertical Flight Society 71st Annual Forum & Technology Display. The Vertical Flight Society, 2015. http://dx.doi.org/10.4050/f-0071-2015-10200.

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Thermoplastic composite driveshafts have demonstrated a 35% weight reduction and over 150% greater post ballistic damage survivability over legacy aluminum designs. This was achieved through the joint efforts of Automated Dynamics, NAVAIR, SURVICE Engineering, UTAS, and Sikorsky under a Small Business Innovation Research (SBIR) Phase II effort. An evolution of previous efforts, this paper describes subsequent work to optimize laminate architecture, materials, and structural qualifications to meet new performance requirements. SURVICE Engineering optimized the design of the driveshafts to meet
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Sansal, Kaan, Göktug Koçak, and Volkan Kargin. "Multi-objective Horizontal Stabilizer Optimization Using Genetic Algorithm." In Vertical Flight Society 74th Annual Forum & Technology Display. The Vertical Flight Society, 2018. http://dx.doi.org/10.4050/f-0074-2018-12720.

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Multi-objective optimization of horizontal tail of a conventional rotor helicopter is achieved using a genetic algorithm, which is coupled with comprehensive analysis tools, Flightlab® and in-house rotorcraft simulation tool TAI Originated Rotorcraft Simulation (TOROS). Genetic algorithm is used to design a tail that improves static longitudinal stability characteristics of the helicopter during autorotation as well as its longitudinal dynamic stability characteristics at high speeds. Another optimization target is to minimize pitch attitude change in transition to forward flight while keeping
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Hou, Jian, and Jian'An Wang. "Mechanism of horizontal and vertical mixing progressive collapse of RC frame structures." In Proceedings of the 2018 7th International Conference on Sustainable Energy and Environment Engineering (ICSEEE 2018). Atlantis Press, 2019. http://dx.doi.org/10.2991/icseee-18.2019.98.

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Bucher, I., D. J. Ewins, D. A. Robb, and P. Schmiechen. "Multi-Dimensional Directional Spectrograms and Campbell (ZMOD) Diagrams for Rotating Machinery." In ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0532.

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Abstract A new method for decomposition of vibration signals measured on rotating machinery is presented in this paper. The method uses a signal measured from a number of sensors to decompose the spatial response according to the direction of the progression of motion, the frequency content and the various wavelengths. For the simple case of shaft vibration, two sensors, horizontal and vertical, are used to separate the vibration pattern into forward and backward progressing components. For the case of a rotating disc, more sensors are required to further decompose the response into different
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Song, Yong Mann, Jong Yeob Jung, and Sunil Nijhawan. "FUELPOOL: A Computer Program to Model CANDU Spent Fuel Pool Severe Accident Progression and Consequences." In 2020 International Conference on Nuclear Engineering collocated with the ASME 2020 Power Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/icone2020-16634.

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Abstract CANDU PHWR spent fuel pools (SFPs), smaller than a tennis court, contain up to 38,000 or more (49,000 in Wolsong)fuel bundles in geometries not replicated in any other power reactor. Therefore, the phenomenological issues, accident progression pathways and effectiveness of mitigative actions are somewhat different. This requires a dedicated approach in progression and consequence assessments of potential accidents and development of mitigation measures. The SFPs house densely packed fuel bundles stacked in about a hundred vertical stainless steel tray towers, each containing 24 spent
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Hayasaka, Nozomi, Takumi Kikuchi, and Akitoshi Itoh. "Transportation Work of Gel Object Done by a Paramecium in the Vertical Plane Pool." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71301.

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We have been investigating how to use microorganisms for bio-micromachines. In this paper, we investigated the motion control property of Paramecium in the vertical plane to prepare the real 3-dimensional motion control. First, we developed a motion control pool for the vertical set up. Basically, the controllability of Paramecium in the vertical plane is not so different to the controllability in the horizontal plane. We can control paramecium very stably for over 100 laps along the star-shaped target route by using this newly made experimental pool. The controllability was improved with the
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Lindemann, Thomas, Alessandro La Ferlita, and Patrick Kaeding. "Application of Idealized Structural Unit Method to Determine the Ultimate Strength of Ship Model in Bending." In ASME 2024 43rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/omae2024-125843.

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Abstract The Idealized Structural Unit Method (ISUM) is applied to perform progressive collapse analyses for a 1/3-scaled frigate model in bending. For the load case of pure vertical bending (sagging), the ISUM results are validated against experimental data. The ISUM model is explained in detail taking into account the initial imperfections of stiffeners and the attached plating. In particular, the effect of welding residual stresses on the ultimate hull girder strength is discussed. Displacement controlled nonlinear analyses are performed by using the full Newton-Raphson scheme an incrementa
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Ahmad, S. S., A. Guida, M. Mahadeo, et al. "A Comprehensive Approach for Understanding Borehole Failure Mechanisms in Horizontal Wells - A Case Study from the Norwegian North Sea." In ADIPEC. SPE, 2024. http://dx.doi.org/10.2118/222955-ms.

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Abstract The process of drilling horizontal wells through sand-shale interbedded sequences can present difficulties and risks due to variations in their mechanical properties, leading to unstable boreholes, especially when mud weight is optimized to mitigate against-loss events. This study aims to use a comprehensive approach involving geological, petrophysical, and geomechanical analysis to understand why and where severe borehole instabilities are occurring in a specific field located in the Norwegian North Sea. The data utilized in this research includes high-resolution ultrasonic amplitude
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Amižić, Milan, Estelle Guyez, and Jean-Marie Seiler. "Experimental Investigation on Heat Transfer for Two-Phase Flow Under Natural Convection." In 2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/icone20-power2012-55225.

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In the frame of severe accident research for the second and the third generation of nuclear power plants, some aspects of the concrete cavity ablation during the molten corium–concrete interaction are still remaining issues. The determination of heat transfer along the interfacial region between the molten corium pool and the ablating basemat concrete is crucial for the assessment of concrete ablation progression and eventually the basemat melt-through. For the purpose of experimental investigation of thermal-hydraulics inside a liquid pool agitated by gas bubbles, the CLARA project has been l
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Reports on the topic "Horizontal and vertical progression"

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Zhang S. Y. Booster Horizontal and Vertical Aperture. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/1132438.

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Galiani, Sebastian, Cheryl Long, Camila Navajas, and Gustavo Torrens. Horizontal and Vertical Conflict: Experimental Evidence. National Bureau of Economic Research, 2016. http://dx.doi.org/10.3386/w21857.

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Hoffman, Lloyd. The Vertical is Not Yet Becoming the Horizontal. Defense Technical Information Center, 1995. http://dx.doi.org/10.21236/ada441102.

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Birdsell, K. H., N. D. Roseberg, and K. M. Edlund. Performance of horizontal versus vertical vapor extraction wells. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10159776.

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Jones, Walter W. Calculating flame spread on horizontal and vertical surfaces. National Institute of Standards and Technology, 1994. http://dx.doi.org/10.6028/nist.ir.5392.

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Grunsky, E. C., and R. J. McNeil. Geochemical landscapes: aspects of vertical and horizontal variation. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2011. http://dx.doi.org/10.4095/287959.

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Erik C. Westman. 24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/838445.

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Westman, Erik C. 24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/802176.

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Westman, Erik C. 24 CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/802178.

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Westman, Erik C. 24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/802179.

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