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Littérature scientifique sur le sujet « Cross-sectional design »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 25 juillet 2025

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Articles de revues sur le sujet "Cross-sectional design"

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Bangdiwala, Shrikant I. "Basic epidemiology research designs I: cross-sectional design." International Journal of Injury Control and Safety Promotion 26, no. 1 (2019): 124–26. http://dx.doi.org/10.1080/17457300.2018.1556415.

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Piegl, L. A., and W. Tiller. "Cross-Sectional Design with Boundary Constraints." Engineering with Computers 15, no. 2 (1999): 171–80. http://dx.doi.org/10.1007/s003660050012.

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Bentamy, Anas, François Guibault, and Jean Yves Trépanier. "Cross-sectional design with curvature constraints." Computer-Aided Design 37, no. 14 (2005): 1499–508. http://dx.doi.org/10.1016/j.cad.2005.03.005.

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Levin, Kate Ann. "Study design III: Cross-sectional studies." Evidence-Based Dentistry 7, no. 1 (2006): 24–25. http://dx.doi.org/10.1038/sj.ebd.6400375.

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Li, Leihong, Vitali V. Volovoi, and Dewey H. Hodges. "Cross-Sectional Design of Composite Rotor Blades." Journal of the American Helicopter Society 53, no. 3 (2008): 240. http://dx.doi.org/10.4050/jahs.53.240.

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Woodward, Charles D. "Cross-sectional design of B-spline surfaces." Computers & Graphics 11, no. 2 (1987): 193–201. http://dx.doi.org/10.1016/0097-8493(87)90032-x.

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Abduh, Muhammad, Tri Alawiyah, Gio Apriansyah, Rusdy Abdullah Sirodj, and M. Win Afgani. "Survey Design: Cross Sectional dalam Penelitian Kualitatif." Jurnal Pendidikan Sains dan Komputer 3, no. 01 (2022): 31–39. http://dx.doi.org/10.47709/jpsk.v3i01.1955.

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Penelitian dilakukan untuk mencari suatu masalah yang belum pasti kebenaran nya, dengan sebuah ilmu pengetahuan dapat ditemukan dari inti permasalahan. Dalam meneliti ada suatu metode dan tidak sembarang metode yang akan digunakan dengan pendekatan kualitatif, kuantitatif, kombinasi, atau pengembangan, setelah itu ada desain. Tujuan dari tulisan yaitu memberikan gambaran bagaimana melaksanakan penelitian dengan survey. Metodologi yang digunakan dalam menyelsaikan makalah ini menggunakan metode penelitian kepustakaan (library research). Kegiatan ini mengkaji kritis pemikiran tokoh-tokoh dan lit

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SHIMODA, Masatoshi, and Yoshinori ENOHATA. "3203 Minimum Design of Cross Sectional Area subject to Sectional Properties in Preliminary Design Stage." Proceedings of Design & Systems Conference 2006.16 (2006): 297–98. http://dx.doi.org/10.1299/jsmedsd.2006.16.297.

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Brown, Alan C. "Fundamentals of low radar cross-sectional aircraft design." Journal of Aircraft 30, no. 3 (1993): 289–90. http://dx.doi.org/10.2514/3.46331.

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Puspa Zuleika and Legiran. "Cross-Sectional Study as Research Design in Medicine." Archives of The Medicine and Case Reports 3, no. 2 (2022): 256–59. http://dx.doi.org/10.37275/amcr.v3i2.193.

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A cross-sectional study is an observational study that analyzes data from a population at one point in time. These studies are often used to measure prevalence in medicine, analyze health studies, and describe health characteristics. Unlike other types of observations, in a cross-sectional study, each research subject was only observed once, the measurement of research variables was carried out at the time of the observation, and no follow-up was carried out on the measurements made. These studies are less expensive and easier to perform and help establish preliminary evidence in planning furt

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Thèses sur le sujet "Cross-sectional design"

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Grieshaber, Michele Marie. "Interactive calculation of cross-sectional areas for aircraft design and analysis." Thesis, This resource online, 1988. http://scholar.lib.vt.edu/theses/available/etd-04272010-020357/.

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Gardiner, Christopher J. "Large Area Sintering Test Platform Design and Preliminary Study on Cross Sectional Resolution." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/7026.

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Additive manufacturing involves the layer-wise patterned addition of material to create 3D parts, allowing for parts with complex geometries that traditional subtractive manufacturing processes cannot create, while offering good value for low run production parts by eliminating the cost of tooling. Large Area Sintering is a form of powder based additive manufacturing where entire layer cross sections are heated and fused in a single continuous exposure process. This layer by layer powder sintering process is similar to selective laser sintering, but by heating the cross sec

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Shapla, Tanweer J. "INFERENCE OF ATTRIBUTABLE RISK FOR MULTIPLE EXPOSURE LEVELS UNDER CROSS-SECTIONAL SAMPLING DESIGN." Bowling Green State University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1148489335.

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Small, Tamara. "Workplace Violence Prevention Training: A Cross-sectional Study of Home Healthcare Workers." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1595850151324948.

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Coleman, Emma Elizabeth. "Comparisons of Design Thinking for Engineering Education." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/85867.

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Design thinking ability is vital for engineers who are tasked with solving society's toughest sustainable development challenges. Prior research identified that the percentage of design thinkers among freshmen engineering students is greater than the percentage among the general population. However, engineering education's lack of attention to fostering creative ability may cause the design thinking ability of senior engineering students to suffer. The research addressed in this thesis compares the design thinking ability of engineering students across age groups, and compares design thinking

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Assaf, Musaid Assaf. "Effects of soil cross-sectional modeling on the site design spectra and fundamental period." College Park, Md. : University of Maryland, 2004. http://hdl.handle.net/1903/2023.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2004.<br>Thesis research directed by: Civil Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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PAGANI, ARIELA FRANCESCA. "NELLA BUONA SORTE: IL PROCESSO DI CAPITALIZZAZIONE NELLA RELAZIONE DI COPPIA." Doctoral thesis, Università Cattolica del Sacro Cuore, 2014. http://hdl.handle.net/10280/2871.

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Il presente progetto di ricerca si è focalizzato sul processo di capitalizzazione, ovvero la condivisione di eventi positivi con il/la partner, da cui ci si aspetta una risposta attiva al fine di prolungare ed aumentare i benefici derivanti dall’evento stesso. L’articolazione in tre studi, di carattere quantitativo, ha permesso di approfondire la conoscenza dell’oggetto di ricerca utilizzando diverse metodologie. Il primo studio ha indagato, attraverso un disegno cross-sectional, la struttura della Perceived Responses to Capitalization Attempts scale (PRCA) e, attraverso un disegno longitudina

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PAGANI, ARIELA FRANCESCA. "NELLA BUONA SORTE: IL PROCESSO DI CAPITALIZZAZIONE NELLA RELAZIONE DI COPPIA." Doctoral thesis, Università Cattolica del Sacro Cuore, 2014. http://hdl.handle.net/10280/2871.

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Il presente progetto di ricerca si è focalizzato sul processo di capitalizzazione, ovvero la condivisione di eventi positivi con il/la partner, da cui ci si aspetta una risposta attiva al fine di prolungare ed aumentare i benefici derivanti dall’evento stesso. L’articolazione in tre studi, di carattere quantitativo, ha permesso di approfondire la conoscenza dell’oggetto di ricerca utilizzando diverse metodologie. Il primo studio ha indagato, attraverso un disegno cross-sectional, la struttura della Perceived Responses to Capitalization Attempts scale (PRCA) e, attraverso un disegno longitudina

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Umezulike, Bedford Nwabueze. "Is Modernization the Engine of Political Instability?: A Pooled Cross-Sectional Time-Series Test of Causality." Thesis, University of North Texas, 1990. https://digital.library.unt.edu/ark:/67531/metadc331077/.

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Traditional studies of the modernization-instability thesis have neglected the simultaneous influence of time and place on the relationship between modernization (social mobilization and political participation) and political instability, and the possible causal linkage between the two concepts. Empirical support for modernization-instability hypothesis will be obtained if and only if there is a strong positive correlation between modernization and political instability and the former causes the latter unidirectionally. Only then can one assert that modernization is exogenous, and that a polic

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Stavric, Verna A. "Muscle power after stroke." AUT University, 2007. http://hdl.handle.net/10292/131.

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Stroke is the leading cause of disability worldwide. It often leads to mobility limitations resulting from deficits in muscle performance. While reduced muscle strength and rate of force production have been reported, little is known about the power generating capability of people after stroke and its relationship to mobility. Research in other populations has found that measures of muscle power may have a greater association with activity performance than do measures of muscle force alone. Consequently, in an attempt to optimise power, investigators have focused on identifying ideal param

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Livres sur le sujet "Cross-sectional design"

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Milliken, Paul. The effect of cross-sectional geometry on heavy vehicle performance and safety. Transfund New Zealand, 2005.

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1917-, Bové Frank James, New Jersey. State Dept. of Health., and National Center for Environmental Health and Injury Control (U.S.). Division of Birth Defects and Developmental Disabilities., eds. Population-based surveillance and etiological research of adverse reproductive outcomes and toxic wastes.: A cross-sectional study. New Jersey Dept. of Health, 1992.

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Loffredo, Anna Maria, Rainer Wenrich, Charlotte Axelsson, and Wanja Kröger, eds. Changing Time - Shaping World. transcript Verlag, 2022. http://dx.doi.org/10.14361/9783839461358.

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A World of Changemakers - how can a hybrid arts lecture series concept in e-learning create attitudes and shape skills as a playful and critical thinking navigator in an uncertain world? To re-create meaning is an interdisciplinary cross-sectional task of our zeitgeist in a civil society. The international contributors represent key roles in relevant philosophical, technical or economic debates, non-university community art & design projects or companies.

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Walters, Stephen John. Quality of life outcomes in clinical trials and health-care evaluation: A practical guide to analysis and interpretation. John Wiley & Sons, 2009.

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Halperin, Sandra, and Oliver Heath. 6. Research Design. Oxford University Press, 2017. http://dx.doi.org/10.1093/hepl/9780198702740.003.0006.

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This chapter focuses on the basic principles of research design. It first considers different types of research design, including experimental designs, cross-sectional and longitudinal designs, comparative designs, and historical research designs. It also discusses two types of research validity: internal validity and external validity. The chapter proceeds by describing various methods of data collection and the sort of data or evidence each provides, including questionnaires and surveys, interviewing and focus groups, ethnographic research, and discourse/content analysis. Finally, it examine

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Ray, Sumantra (Shumone), Sue Fitzpatrick, Rajna Golubic, Susan Fisher, and Sarah Gibbings, eds. Navigating research methods: quantitative and clinical/epidemiological methods. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199608478.003.0003.

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This chapter focuses on various types of study design used in clinical and healthcare research with an emphasis on observational studies whilst randomised controlled trials are explained in Chapter 15. Within observational studies, the distinction between descriptive and analytical studies is made and different sources of error in epidemiological studies are reviewed. Main features, advantages and disadvantages of analytical observational studies are described for the following designs: ecological studies, cohort studies, case-control studies and cross-sectional studies. A brief overview of ex

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Hillygus, D. Sunshine, and Steven Snell. Longitudinal Surveys. Edited by Lonna Rae Atkeson and R. Michael Alvarez. Oxford University Press, 2015. http://dx.doi.org/10.1093/oxfordhb/9780190213299.013.7.

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Longitudinal or panel surveys, in which the same individuals are interviewed repeatedly over time, are increasingly common in the social sciences. The benefit of such surveys is that they track the same respondents so that researchers can measure individual-level change over time, offering greater causal leverage than cross-sectional surveys. Panel surveys share the challenges of other surveys while also facing several unique issues in design, implementation, and analysis. This chapter considers three such challenges: (1) the tension between continuity and innovation in the questionnaire desig

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Quality of life outcomes in clinical trials and health-care evaluation: A practical guide to analysis and interpretation. John Wiley & Sons, 2009.

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Stephens, Keri K. You Can’t Assume a Spherical Chicken. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190625504.003.0013.

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Much of the research on mobile communication has been cross-sectional, focused on a single organization at one point in time. White-collar workers are the ones most often studied because they pioneered the use of mobile devices. When they first hear about this research, they’re shocked to learn that everyone doesn’t communicate like they do. People from all backgrounds should realize that their own assumptions can blind them to understanding and being compassionate about differences. It might be a violation of others’ hopes for a colleague or friend to be unreachable during work hours, but peo

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Bhopal, Raj S. Epidemiological study designs and principles of data analysis: A conceptually integrated suite of methods and techniques. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780198739685.003.0009.

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Epidemiological studies are unified by their common goals and by their basis in defined populations. The case series (or register-based study) includes examination of trends in deaths, cancers, notifiable diseases, and hospitalizations. Case–control studies are analysed by comparing the exposure to risk factors in cases to those in controls. In a population studied at a specific time and place (a cross-sectional study), measurements can be made of disease, the factors which may cause disease, or both simultaneously. Cohort studies produce data on disease incidence and are especially good on as

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Chapitres de livres sur le sujet "Cross-sectional design"

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Fabricant, Peter D. "Cross-Sectional Studies." In Practical Clinical Research Design and Application. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-58380-3_11.

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Pan, Xi. "Repeated Cross-Sectional Design." In Encyclopedia of Gerontology and Population Aging. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-69892-2_578-1.

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Hunziker, Stefan, and Michael Blankenagel. "Cross-Sectional Research Design." In Research Design in Business and Management. Springer Fachmedien Wiesbaden, 2024. http://dx.doi.org/10.1007/978-3-658-42739-9_10.

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Hunziker, Stefan, and Michael Blankenagel. "Cross-Sectional Research Design." In Research Design in Business and Management. Springer Fachmedien Wiesbaden, 2021. http://dx.doi.org/10.1007/978-3-658-34357-6_10.

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Pan, Xi. "Repeated Cross-Sectional Design." In Encyclopedia of Gerontology and Population Aging. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-22009-9_578.

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Holmes, Laurens. "Cross-Sectional Study Design (Non-experimental)." In Applied Epigenomic Epidemiology Essentials. Routledge, 2023. http://dx.doi.org/10.4324/9781003094487-10.

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Hua, Zhu, and Annabelle David. "Study Design: Cross-Sectional, Longitudinal, Case, and Group." In The Blackwell Guide to Research Methods in Bilingualism and Multilingualism. Blackwell Publishing Ltd., 2009. http://dx.doi.org/10.1002/9781444301120.ch6.

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Huang, Minchao, Jianjun Wu, Jian Li, and Yuqiang Cheng. "Simulation and Optimization Design of a Laminated Heat Exchanger Core for a Solar Thermal Thruster." In Solar Thermal Thruster. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-7490-6_5.

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AbstractIn this chapter, a laminated structure is used to design a high-efficiency heat exchanger core, and the optimal design scheme is obtained through a simulation and comparison analysis of the designed control runner length and runner cross-sectional area.

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Zakour, Michael J., and David F. Gillespie. "Cross-Sectional Design and Linear Statistics in Vulnerability Research." In Community Disaster Vulnerability. Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5737-4_5.

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Raheimi, Aideal, S. M. B. Abdul Rahman, and Noor Ayuni Che Zakaria. "Cross-Sectional Study on Musculoskeletal Discomfort Among Air Traffic Controllers." In Springer Series in Design and Innovation. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-60863-6_25.

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Actes de conférences sur le sujet "Cross-sectional design"

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Zimmermannova, Jarmila, Simona Cakirpaloglu, Tereza Schovankova, Ondrej Machaczka, and Ondrej Holy. "WILLINGNESS TO PAY FOR NANOTECHNOLOGY PRODUCTS: THE CZECH REPUBLIC EXPERIENCE." In SGEM International Multidisciplinary Scientific GeoConference. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024v/6.2/s23.06.

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The current development of nanotechnology responds to climate change, sustainability issues, the energy crisis, and the need to improve the quality of life. The question, however, is what are the societal impacts and public acceptance of nanotechnology? To explore this, a pilot cross-sectional study was conducted in the Czech Republic. The main objective of this study is to discuss consumers' willingness to pay for products containing nanotechnology. A sub-objective is to present the results of a pilot cross-sectional study on willingness to pay for nanotechnology products in the Czech Republi

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Seen, Michael, Achilleus Astyanto, and Christian Pratama. "Analysis of the Effect of Fin Material on Temperature Distribution in Rectangular Cross-Sectional Straight Fins." In INTERNATIONAL CONFERENCE ON APPLIED TECHNOLOGY 2024. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-j8xex4.

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The design of fins needs to be optimized to ensure effective heat transfer or dissipation from the engine to the surrounding air. The choice of material for the fins is crucial to facilitate unhindered heat dissipation from the fins to the environment. This study employed a numerical simulation using the finite difference method to analyze the temperature distribution within various sections of the fins. The calculations were performed from the transient state until a steady state was achieved. The findings indicate that the fin material significantly impacts the temperature distribution acros

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Zuo, Qian, Liaqat Ali, and Yong Bai. "Cross-Sectional Design and Case Study for Flexible Pipe." In ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/omae2021-60368.

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Abstract Flexible pipes are compounded by many concentric layers, with different structural and operational functions. These layers are usually made of distinct materials, including metal and plastic. To accurately meet the working requirements of the pipes and reduce its production cost, the primary purpose of this paper is to present the cross-sectional design procedure and the case study for a specific unbonded flexible pipe is also illustrated. In this paper, the mathematical analysis and finite element analysis are employed to study the properties of pipe under different working condition

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Lim, Chek T., and Mark T. Ensz. "Reconstruction of Cross-Sectional Data Using Implicit Solid Modelling." In ASME 1996 Design Engineering Technical Conferences and Computers in Engineering Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-detc/dac-1606.

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Abstract In this paper, we present a new technique for constructing mathematical representations of solids from cross-sectional data sets. A collection of 2D cross-sections is generated from the sliced data by merging circular primitives using Implicit Solid Modelling (ISM) techniques which approximate Boolean unions. The spatial locations and radii of the circles for each slice are determined through a nonlinear optimization process. The cost function employed in these optimizations is a measure of discrepancies in the distance from points to the boundary of the reconstructed cross-section. T

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Izui, Kazuhiro, Shinji Nishiwaki, and Masataka Yoshimura. "An Optimal Cross-Sectional Design Method for Automotive Body Frames." In International Body Engineering Conference & Exposition. SAE International, 2003. http://dx.doi.org/10.4271/2003-01-2782.

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Gao, Feng, and Radha Sarma. "A Declarative Feature-Based Cross Sectional Design Tool for Surface Micromachined MEMS." In ASME 2001 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/detc2001/cie-21775.

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Abstract Currently MEMS designers begin the geometric design of a new device by creating the masks that would lead to a geometric model. At the macro-level, this would be analogous to generating a geometric model from the tool paths, which would be a very tedious task. In contrast to MEMS designers, designers of macro-devices have the advantage of starting with a geometric model and of being able to directly visualize or manipulate their designs. The geometric model is then queried to generate manufacturing-related data. In the case of surface micromachined MEMS, until very recently, there has

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Zhao, Wenzhong, and Shapour Azarm. "A Cross-Sectional Shape Multiplier Method for Two-Level Optimum Design of Frames." In ASME 1990 Design Technical Conferences. American Society of Mechanical Engineers, 1990. http://dx.doi.org/10.1115/detc1990-0068.

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Abstract In this paper, a new method for optimum design of frame structures is presented. The method is based on a hierarchical decomposition of the structure into two-levels, namely, the bottom- and the top-level. The bottom-level consists of several subproblems each dealing with the cross-sectional sizing of a given frame-element. The top-level consists of one subproblem which is formulated for configuration design of the frame structure. Since there may be a large number of frame elements, a new shape multiplier method has been developed to simplify the formulation of the bottom-level subpr

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Menon, Jai, Ranjit Desai, and Jay Buckey. "Constraint-Based Reverse Engineering From Ultrasound Cross-Sections." In ASME 1997 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/detc97/dfm-4365.

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Abstract This paper extends the “cross-sectional” approach for reverse engineering, used abundantly in biomedical applications, to the mechanical domain. We propose a combination of “projective” and cross-sectional algorithms for handling physical artifacts with complex topology and geometry. In addition, the paper introduces the concept of constraint-based reverse engineering, where the constraint parameters could include one or more of the following: time, storage (memory, disk-space), network bandwidth, Quality of Service (output-resolution), and so forth. We describe a specific reverse-eng

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DING, Y., and B. ESPING. "Optimum design of frames with beams of different cross-sectional shapes." In 27th Structures, Structural Dynamics and Materials Conference. American Institute of Aeronautics and Astronautics, 1986. http://dx.doi.org/10.2514/6.1986-918.

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Yang, Chengwei, Zhen-yuan Liu, and Bao Kang. "the geometry optimization design of a rectangular cross-sectional rail launcher." In 2014 International Conference on Computer Science and Electronic Technology. Atlantis Press, 2015. http://dx.doi.org/10.2991/iccset-14.2015.73.

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Rapports d'organisations sur le sujet "Cross-sectional design"

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Al-Kaddo, Hajar, Alison Halford, Jonathan Nixon, and Elena Gaura. The HEED project: Summary of multi-level cross sectional impact. Coventry University, 2021. http://dx.doi.org/10.18552/heed/2021/0004.

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Globally, there are 82.4 million displaced people and 26.4 million refugees[i]. An estimated 7 million displaced people in camps have access to electricity for less than four hours a day[ii], making them among the most likely groups left behind in the global drive for improved energy access. In settings that are both precarious economically and politically, humanitarian actors need access to design protocols and pathways for energy products and services that deliver inclusive, affordable, and sustainable energy systems that benefit camp-based populations now and in the future. This briefing pa

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Meghir, Costas, Orazio P. Attanasio, Natalia Varela, Sally Grantham-McGregor, and Marta Rubio-Codina. The Socio-Economic Gradient of Child Development: Cross-Sectional Evidence from Children 6-42 Months In Bogota. Inter-American Development Bank, 2013. http://dx.doi.org/10.18235/0011641.

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We study the socio-economic gradient of child development on a representative sample of low- and middle-income children aged 6-42 months in Bogota, using the Bayley Scales of Infant Development, a high quality test based on direct observation of the child's abilities. We find a statistically significant difference between children in the 90th and 10th percentile of the wealth distribution in our sample of 0.33 standard deviations (SD) in cognition, 0.29 SD in receptive language and 0.38 SD in expressive language at 14 months. The socio-economic gap increases substantially with age to 1 SD (cog

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Mednik, Matias, Inder J. Ruprah, and César Rodríguez. Hysteresis in Unemployment: Evidence from Latin America. Inter-American Development Bank, 2008. http://dx.doi.org/10.18235/0011139.

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This paper tests the hysteresis hypothesis in unemployment for 13 Latin American countries covering the period 1980-2005. The tests exploit the time series and the cross sectional variation of the series, and allows for cross section dependence and a different number of endogenously determined structural breakpoints. The findings give support to the hysteric dynamic hypothesis for the majority of the countries analyzed. The implications of the results have ramifications regarding macro-stabilization, structural reform, and the design of social safety protection.

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Seaman. PR-185-07701-R01 Evaluation of Magnetic Pulse Welding for Improved Casing Repair. Pipeline Research Council International, Inc. (PRCI), 2010. http://dx.doi.org/10.55274/r0010701.

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Alternative repair methods for natural gas storage well casings are required to lower the costs of casing repairs and to reduce operational constraints that result from repair methods that reduce the cross sectional area of the casing. The objective of this project is to determine the feasibility of expansion mode magnetic pulse welding (MPW) to affect improved casing repair. Finite element modeling (FEM) was used to develop an expansion welding coil system and to simulate its performance. The critical welding velocity was determined and preliminary MPW parameters identified, thus validating t

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Vorjohann, Felix, and Reinhard Schiffers. Analysis of spiral mandrel dies with novel channel geometries to draw conclusions on the purging time of the melt using CFD. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.gs.ex.1.

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Spiral mandrel dies are deeply integrated into the extrusion process and are the predominant die type for manufacturing products with a ring-shaped cross-section, e.g. blown film. The geometry of the axial spiral mandrel die is characterized by a spiral mandrel with one or more feed holes that merge into the spiral channels. The spiral channels themselves are embedded in the mandrel and have a characteristic u-shape in cross-section, which is dictated by the milling head used during manufacturing. In the past, numerous geometric parameters of the conventional axial spiral mandrel distributor h

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Kumban, Wannisa, Anoma Santiworakul, and Salila Cetthakrikul. The effect of Animal Assisted Therapy on physical activity in elderly. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.9.0049.

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Review question / Objective: What are the effect of Animal Assisted Therapy on physical activity in elderly. PICOs P: Elderly; I: Animal Assisted Therapy; C: Compare; O: Physical activity, physical fitness, health-related fitness; S: experimental study/ compare between group/ pre-post test. Eligibility criteria: Inclusion criteria comprised any studies that provided experimental study design or observational data on cross-sectional comparisons between groups. The outcome analyzed in this review was the effect of animal assisted or pet or human-animal interaction on physical activity that was s

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CHEN, Danfeng, Jianquan CHEN, Xutong ZHENG, Zhuzhu QIN, Simin HUANG, and Chenju ZHAN. Stigma in colorectal cancer patients with colostomy, China: A systematic review and meta-analysis of current status and associated psychological factors. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2023. http://dx.doi.org/10.37766/inplasy2023.2.0073.

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Review question / Objective: To analyze the current stigma and related factors of colorectal cancer stoma patients in China using Meta-analysis. To analyze the current stigma and related factors of colorectal cancer stoma patients in China using Meta-analysis.: (1) The study design was: an observational study (cohort study, case-control study, cross-sectional study) (2) The study population was post-stoma patients with colorectal cancer in China (3) The study index needed to contain at least one scale related to the stigma that was tested for reliability (4) The outcome index needed to contain

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Mwebe, Robert, Chester Kalinda, Ekwaro A. Obuku, et al. Epidemiology and effectiveness of interventions for Foot and Mouth Disease in Africa: A protocol for systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.11.0039.

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Review question / Objective: What is the epidemiology and effectiveness of control measures for foot and mouth disease in African countries?’ PICOS: Description of elements Population/ problem/Setting: Artiodactyla (cloven ungulates), domestic (cattle, sheep, goats, and pigs), camels and wildlife (buffaloes, deer, antelope, wild pigs, elephant, giraffe, and camelids) affected by Foot and Mouth Disease (FMD) or Hoof and Mouth Disease (HMD) caused by the Foot and Mouth Disease Virus (FMDV) in Africa. Intervention: Prevention measures: vaccination, ‘biosafety and biosecurity’, sensitization of th

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Wooldridge, Jeffrey. Causal Inference with Cross-Sectional Data. Instats Inc., 2023. http://dx.doi.org/10.61700/utpyiijdiwlgi469.

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This workshop covers the potential outcomes approach to identification and estimation of causal (or treatment) effects in several situations that arise in various empirical research fields. The settings include unconfounded treatment assignment (with randomized assignment as a special case), confounded assignment with instrumental variables, and regression discontinuity designs. An official Instats certificate of completion is provided at the conclusion of the seminar. For European PhD students, the seminar offers 2 ECTS Equivalent point.

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Wooldridge, Jeffrey. Causal Inference with Cross-Sectional Data. Instats Inc., 2023. http://dx.doi.org/10.61700/jfl18ze5ckjn0469.

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This workshop covers the potential outcomes approach to identification and estimation of causal (or treatment) effects in several situations that arise in various empirical research fields. The settings include unconfounded treatment assignment (with randomized assignment as a special case), confounded assignment with instrumental variables, and regression discontinuity designs. An official Instats certificate of completion is provided at the conclusion of the seminar. For European PhD students, the seminar offers 2 ECTS Equivalent point.

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