Relevant bibliographies by topics / Moving planes method

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

Academic literature on the topic 'Moving planes method'

Author: Grafiati
Published: 9 March 2023
Last updated: 14 March 2023

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Journal articles on the topic "Moving planes method"

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Dancer, E. N. "Some notes on the method of moving planes." Bulletin of the Australian Mathematical Society 46, no. 3 (1992): 425–34. http://dx.doi.org/10.1017/s0004972700012089.

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In this paper, we obtain a version of the sliding plane method of Gidas, Ni and Nirenberg which applies to domains with no smoothness condition on the boundary. The method obtains results on the symmetry of positive solutions of boundary value problems for nonlinear elliptic equations. We also show how our techniques apply to some problems on half spaces.
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Li, Yan Yan. "Harnack Type Inequality: the Method of Moving Planes." Communications in Mathematical Physics 200, no. 2 (1999): 421–44. http://dx.doi.org/10.1007/s002200050536.

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Berestycki, H., and L. Nirenberg. "On the method of moving planes and the sliding method." Boletim da Sociedade Brasileira de Matem�tica 22, no. 1 (1991): 1–37. http://dx.doi.org/10.1007/bf01244896.

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Chen, Wenxiong, Pengyan Wang, Yahui Niu, and Yunyun Hu. "Asymptotic method of moving planes for fractional parabolic equations." Advances in Mathematics 377 (January 2021): 107463. http://dx.doi.org/10.1016/j.aim.2020.107463.

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Zhang, Lihong, and Xiaofeng Nie. "A direct method of moving planes for the Logarithmic Laplacian." Applied Mathematics Letters 118 (August 2021): 107141. http://dx.doi.org/10.1016/j.aml.2021.107141.

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Chen, Wenxiong, Congming Li, and Yan Li. "A direct method of moving planes for the fractional Laplacian." Advances in Mathematics 308 (February 2017): 404–37. http://dx.doi.org/10.1016/j.aim.2016.11.038.

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Lin, Chang-Shou, and Juncheng Wei. "Uniqueness of Multiple-spike Solutions via the Method of Moving Planes." Pure and Applied Mathematics Quarterly 3, no. 3 (2007): 689–735. http://dx.doi.org/10.4310/pamq.2007.v3.n3.a3.

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Guan, Pengfei, Chang-Shou Lin, and Guofang Wang. "Application of the method of moving planes to conformally invariant equations." Mathematische Zeitschrift 247, no. 1 (2004): 1–19. http://dx.doi.org/10.1007/s00209-003-0608-x.

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Дудукало, Д., D. Dudukalo, М. Чепчуров, M. Chepchurov, М. Вагнер, and M. Vagner. "METHOD FOR PRODUCING PLANES PARALLEL TO THE AXIS ROTATION AXIS ON LATHES." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 4, no. 10 (2019): 142–48. http://dx.doi.org/10.34031/article_5db43fa622b135.74427811.

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This article describes the method of obtaining surfaces by moving cutting tool edge in the transversal direction on automatic lathes. The application of this handling method allows person to take a fresh look at the usage and modernization for state of the art equipment and improve its technological capabilities, which allows increasing capacity and extending the range of products. In this article tool movements are calculated for revolution of the workpiece, a model for moving the tool path is produced and with the help of using software package a tool movement graph is constructed when a plane is formed parallel to the product axis. It is established that the obtained model of tool movement allows a person to analyze velocity variation in speed from zero to maximum value, since the method’s implementation of moving the tool in the opposite direction it require to solve the tool’s reverse problem. The method allows a person to analyze movements and trajectories for ensuring the implementation of obtaining planes and various complex products on automatic lathes.
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Wang, Pengyan, and Pengcheng Niu. "A direct method of moving planes for a fully nonlinear nonlocal system." Communications on Pure & Applied Analysis 16, no. 5 (2017): 1707–18. http://dx.doi.org/10.3934/cpaa.2017082.

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Dissertations / Theses on the topic "Moving planes method"

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Barboza, Eudes Mendes. "Classificação de soluções de algumas equações elípticas não lineraes." Universidade Federal da Paraíba, 2013. http://tede.biblioteca.ufpb.br:8080/handle/tede/8027.

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Submitted by Maike Costa (maiksebas@gmail.com) on 2016-03-22T11:11:05Z No. of bitstreams: 1 arquivototal.pdf: 1833639 bytes, checksum: aaa2e895cd2ba1edb07718225c7443ba (MD5)<br>Made available in DSpace on 2016-03-22T11:11:05Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 1833639 bytes, checksum: aaa2e895cd2ba1edb07718225c7443ba (MD5) Previous issue date: 2013-07-26<br>Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq<br>In this work, we classify the solutions of the equation u + fue = 0 in R2 or R2 +. For this, we use basically the Moving Planes Method and and Moving Spheres Method. These methods ensure monotonicity and radial symmetry of the solution under certain conditions. The first method was used to study the case f 1 in R2 when RR2 eu is finite. The other was used to verify that the equation has no solution when f is a continuous function and radially symmetric, monotone in the region which has positive image and not constant. The latter method was also applied to the study of the problem ( u + eu = 0 em R2 +; @u @t = ceu=2 sobre @R2 +; for = 1; = 􀀀1 or = 0, modifying the conditions under the finiteness of RR2 + eu and R@R2 + eu=2. In most cases, when the equation has the solution, it was verified that the radially symmetrical. From this symmetry, we transform our Partial Differential Equations for Ordinary Differential Equations and we classify their solutions.<br>Neste trabalho, classificamos as soluções da equação u + feu = 0 em R2 ou R2 +. Para isso, utilizamos basicamente o Método dos Planos Móveis e o Método das Esferas Móveis, garantindo, sob certas condições a monotonicidade e a simetria radial da solução. O primeiro método foi usado para estudarmos o caso f 1, em R2 com RR2 eu finito. O outro foi utilizado para verificar que a equação não tem solução quando f é uma função contínua, radialmente simétrica e monótona na região em que tem imagem positiva e não constante. Este último método também foi aplicado no estudo do problema ( u + eu = 0 em R2 +; @u @t = ceu=2 sobre @R2 +; para = 1; = 􀀀1 ou = 0, modificando as condições em relação a finitude das integrais RR2 + eu e R@R2 + eu=2. Na maioria dos casos em que a equação tem solução, verificamos que esta era a radialmente simétrica. A partir dessa simetria, transformamos nas equações diferenciais parciais em equações diferenciais ordinárias e podemos classificar suas soluções.
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Costa, Ricardo Pinheiro da. "Propriedades de simetria para soluções de equações elípticas quase lineares em modelos riemannianos." Universidade Federal da Paraí­ba, 2014. http://tede.biblioteca.ufpb.br:8080/handle/tede/7436.

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Made available in DSpace on 2015-05-15T11:46:20Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 1326144 bytes, checksum: 8caf7598b3ff31900cccda592a06981f (MD5) Previous issue date: 2014-07-25<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>In this work we investigate monotonicity and symmetry properties of of solutions to equations involving the p-Laplace-Beltrami operator in hyperbolic space and sphere. The main tools used to obtain the result is a variant of the method of moving planes and a careful use of the maximum and comparison principles<br>Neste trabalho investigamos propriedades de simetria e monotonicidade de soluções para equações envolvendo o operador de p-Laplace-Beltrami no espaço hiperbólico e na esfera. As principais ferramentas empregadas para obtenção do resultado é uma variante do método dos planos móveis e um cuidadoso uso de princípios do máximo e de comparação
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SOAVE, NICOLA. "Variational and geometric methods for nonlinear differential equations." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2014. http://hdl.handle.net/10281/49889.

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This thesis is devoted to the study of several problems arising in the field of nonlinear analysis. The work is divided in two parts: the first one concerns existence of oscillating solutions, in a suitable sense, for some nonlinear ODEs and PDEs, while the second one regards the study of qualitative properties, such as monotonicity and symmetry, for solutions to some elliptic problems in unbounded domains. Although the topics faced in this work can appear far away one from the other, the techniques employed in different chapters share several common features. In the firts part, the variational structure of the considered problems plays an essential role, and in particular we obtain existence of oscillating solutions by means of non-standard versions of the Nehari's method and of the Seifert's broken geodesics argument. In the second part, classical tools of geometric analysis, such as the moving planes method and the application of Liouville-type theorems, are used to prove 1-dimensional symmetry of solutions in different situations.
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Nugroho, Widijanto Satyo. "Waves generated by a load moving on an ice sheet over water." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ32720.pdf.

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"The method of moving planes and its applications." 1998. http://library.cuhk.edu.hk/record=b5889650.

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by Choi Chun-Man.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 1998.<br>Includes bibliographical references (leaves 56-58).<br>Abstract also in Chinese.<br>Chapter 1 --- Radial symmetry for solutions of a semilinear el- liptic equation on a bounded domain --- p.6<br>Chapter 2 --- Asymptotic symmetry of singular solutions to a semilinear elliptic equation --- p.12<br>Chapter 2.1 --- Introduction --- p.12<br>Chapter 2.2 --- Some preliminary analysis --- p.14<br>Chapter 2.3 --- Proof of Theorem 2.1 --- p.20<br>Chapter 3 --- Classification of non-negative solutions to Yamabe type equations --- p.32<br>Chapter 3.1 --- Introduction --- p.32<br>Chapter 3.2 --- The Proof of Theorem 3.1 for k > 0 --- p.38<br>Chapter 3.3 --- Case k <0 --- p.48<br>Bibliography
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Tsai, Ya-Ju, and 蔡雅如. "The Method of Moving Planes and Sliding Method Applied to Elliptic Partial Differential Equations." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/22288269777198354145.

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碩士<br>國立臺灣大學<br>數學研究所<br>88<br>The Method of Moving Planes and the Sliding Method are simple and powerful techniques in proving the symmetry and monotonicity in, say, the $x_1$ direction for a solution of an elliptic equation. They rely on the "Maximum Principle in Small Domain." Following a discussion similar to that in "On the method of moving planes and the sliding mehtod" by Beresycki and Nirenberg, we apply the methods to $u \in W_{loc}^{2,n+1}(\Omega ) \cap C^0(\overline{\Omega})$ which satisfies the nonlinear elliptic equation $F(x, u, Du, D^2u) = 0$ in an arbitrary bounded domain $\Omega$ in $\mathbf{R}^n$. However, Berestycki and Nirenberg assumed that $u \in C^2(\Omega ) \cap C^0(\overline{\Omega})$ and $\Omega$ is convex in the $x_1$-direction. We have successfully loosen the later assumption, but while dealing with the former, some interesting type of Maximum Principle was required and had yet to be proved. We also applied the methods on some simple system elliptic equations which contains much more to be discussed.
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Yen-ChunMiao and 苗延鈞. "Analysis of Plates by the Moving Least Work Method." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/fudr48.

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碩士<br>國立成功大學<br>土木工程學系<br>106<br>In this thesis, the Moving Least Work (MLW) method is used to model the mechanical behaviors of Mindlin Plates. This method uses the Moving Least Work approach to establish approximating functions. In the weight-residual problem precess, the residual value is multiplied by the weight function and multiplied by the conjugate residual value, so that it contains the conception of the least work. Finally we used the point collocation method to get the solutions of displacement fields and stress resultant fields. The simply supported Mindlin plate is modeled under the sinusoidal load, and the boundary-value problems are solved by polynomial-analytic solutions. Using different basis functions and changing the numbers of the uniform-distributed points, we compared the numerical solutions with analytic solutions to validate the feasibility and convergence of the present method.
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Chang-ChingLiu and 劉昶慶. "Analysis of Mindlin Plates by the Moving Trefftz Method." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/gqehtv.

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碩士<br>國立成功大學<br>土木工程學系<br>106<br>In this thesis, we derive a numerical method named Moving Trefftz Method to simulate the mechanical behavior of Mindlin Plates. In order to incorporate the essential and natural boundary conditions into the variational principle, we adopt the Hellinger-Reissner variational principle. The characteristic of this method is adopting the concept of the Trefftz Method. We choose the functions that satisfy the differential equations as the basis of the local approximation function. By using the moving approximation of the Meshless Method in the modified H-R variational principle, we set nodes to construct the relationship between variables. Then, we can use the relationship to form simultaneous equations and solve the displacement field and the resultant stress field. In view of the convenience of using polynomial expressions in numerical analysis, we use the computational properties of polynomials to establish a systematic method to obtain the particular solutions and the bases required in the moving approximation. In numerical examples, we simulate the responses of the plate with different loads and boundary conditions. By changing the number of nodes and the order of bases, we compare the numerical solutions with the analytical solutions to validate the accuracy and the convergence of this method.
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Hao-ChunChuang and 莊皓鈞. "Buckling Analysis of Plates by the Moving Least Square Method." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/06024890717604809632.

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碩士<br>國立成功大學<br>土木工程學系碩博士班<br>100<br>In this paper, we use Moving Least Square Method and shear deformation theory of plates to analyze the buckling of plates. Using the moving least square technique, we attempt to reduce the residuals that results from the approximation to the field variables, the governing equations and the boundary conditions. The process lead to a numerical method to analyze the buckling of plates. In numerical example, we calculate the buckling lead of a plate with simply supported or clamped edges, and the plate size with aspect ratio of 0.5 to 3,and thickness ratio of 0.05 to 0.15. The buckling coefficient and the corresponding buckling shapes are compared with the analytic solution to validate the accuracy of this method. The numerical examples show that when the order of base functions, the aspect ratio and thickness ratio increase, the numerical results converge to the analytical solution.Thus, present method can accurately predict the buckling load of a thick plate.
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闕國賢. "Implicit Virtual Boundary Method for Moving Flat Plates of Zero Thickness." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/15326129747149750219.

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碩士<br>國立清華大學<br>動力機械工程學系<br>102<br>We apply an implicit virtual boundary method with non-staggered coordinate grid system to zero thickness flat plate. Also we use a patch grid to reduce the calculating time and keep the accuracy at the same time. This method can solve the immersed boundary problem for a zero thickness flat plate accurately, no matter it is vertical or with arbitrary angle. We also apply a method to calculate a flying dragonfly, which we won’t need to assume the wings as elliptical geometries with thin thickness, but directly solve them as a zero thickness problem and successfully get the answer of flow and pressure field instead. Also, we may get the drag and lift coefficients. Due to the simulation in this case, we can gain many ideas different from the past. Consequently, the implicit virtual boundary method can successfully applied to many different problems.
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Books on the topic "Moving planes method"

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G, Lee Nancy, and Institute of Andean Studies (Berkeley, Calif.). Meeting, eds. The Sisyphus Project: Moving big rocks up steep hills and into small places : wherein a method is proposed to account for the huge monoliths moved in antiquity and found today in situations too constricted to accommodate the large gangs of pullers traditionally assumed necessary to move them. Sixpac Manco Publications, 1998.

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Bollig, Ben. Moving Verses. Liverpool University Press, 2021. http://dx.doi.org/10.3828/liverpool/9781800859784.001.0001.

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From Wild Tales to Zama, Argentine cinema has produced some of the most visually striking and critically lauded films of the 2000s. Argentina also boasts some of the most exciting contemporary poetry in the Spanish language. What happens when its film and poetry meet on screen? Moving Verses studies the relationship between poetry and cinema in Argentina. Although both the “poetics of cinema” and literary adaptation have become established areas of film scholarship in recent years, the diverse modes of exchange between poetry and cinema have received little critical attention. This book analyses how film and poetry transform each another, and how these two expressive media behave when placed into dialogue. Going beyond theories of adaptation, and engaging critically with concepts around intermediality and interdisciplinarity, Moving Verses offers tools and methods for studying both experimental and mainstream film from Latin America and beyond. The corpus includes some of Argentina’s most exciting and radical contemporary directors (Raúl Perrone, Gustavo Fontán) as well as established modern masters (María Luisa Bemberg, Eliseo Subiela), and seldom studied experimental projects (Narcisa Hirsch, Claudio Caldini). The critical approach draws on recent works on intermediality and “impure” cinema to sketch and assess the many and varied ways in which directors “read” poetry on screen.
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Livermore, Roy. Plate Tectonics by Jerks. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198717867.003.0005.

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Anyone living around the Pacific Ocean will be familiar with plate tectonics by jerks. That is, periods of quiescence when nothing much seems to be happening, punctuated by very large, frequently fatal, and so far unpredictable, earth movements on a time scale of seconds. Surprisingly, careful measurements of plate motions over periods of just a few years (using geodetic methods that will be discussed in Part II) show that the plates are in fact moving almost continuously, so that what there is on all but the very shortest timescales is ‘plate tectonics by creeps’. Happily, in this context, jerks and creeps are not mutually exclusive and so, unlike the biologists, there is no need to come to blows.
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Vachharajani, Tushar J., Richard K. S. Phoon, and David C. H. Harris. A global curriculum for training the next generation of nephrologists. Edited by Neil Turner. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199592548.003.0365_update_001.

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A nephrologist should have the generic skills of a consultant general physician, plus theoretical knowledge, and skills in nephrology. Moving on from a purely apprenticeship model, in the last 40 years several countries have listed the desirable knowledge and skills content for a specialist nephrologist in their jurisdiction. Some of these lists are exhaustive. Assessments of competence often include a written test of knowledge, and workplace based assessment or reports on specific skills or overall performance. We list some of the common generic headings used to define these areas of competence, and point to some curricula for specialist nephrologists. We also summarize methods of learning and point to resources which are available internationally, particularly online. The majority of the numerical need for additional nephrologists globally is in regions with fewer physicians, and fewer resources for their education. The ISN has proposed a global curriculum and identified how this might be tailored to regional needs. We might all help with producing support learning internationally, and we point to some good sources below.How to best support the development of nephrologists in these regions without unintentionally attracting them away from places of greatest need is an important question.
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Book chapters on the topic "Moving planes method"

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Faugeras, Olivier. "Cartan's moving frame method and its application to the geometry and evolution of curves in the euclidean, affine and projective planes." In Applications of Invariance in Computer Vision. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/3-540-58240-1_2.

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Pacella, Filomena. "I.7. Symmetry of Solutions – Moving Plane Method." In James Serrin. Selected Papers. Springer Basel, 2014. http://dx.doi.org/10.1007/978-3-0348-0845-3_7.

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Markenscoff, Xanthippi. "The Moving Plane Inhomogeneity Boundary with Transformation Strain." In Methods and Tastes in Modern Continuum Mechanics. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-1884-5_29.

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Takabatake, Hideo. "Static and Dynamic Analyses of Rectangular Floating Plates Subjected to Moving Loads." In Simplified Analytical Methods of Elastic Plates. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0086-8_10.

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Takabatake, Hideo. "Static and Dynamic Analyses of Rectangular Plates with Stepped Thickness Subjected to Moving Loads." In Simplified Analytical Methods of Elastic Plates. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0086-8_9.

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Prasetya, Herbert Ray, Nazarruddin, and Sugiharto Pujangkoro. "Shelf Allocation Redesign and Warehouse Management System Improvement to Optimize Warehouse Material Flow in Oleo Chemical Industry Business." In Proceedings of the 19th International Symposium on Management (INSYMA 2022). Atlantis Press International BV, 2022. http://dx.doi.org/10.2991/978-94-6463-008-4_140.

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AbstractThe increase in production results in an increase in the flow of material in the warehouse, while this increase does not consider the condition of the warehouse. The increase in production and the number of erratic shipments of goods is caused by external factors such as fluctuations in demand and availability of containers that cannot be controlled that will result in a bottleneck in the warehouse. The purpose of this study is to redesign the allocation of shelves and improve technology in the warehouse management system. The research method uses a material flow simulation model in the warehouse. The simulation validation and manual calculations results show that the rack simulation for dove and soap required 4,018 pallet positions and flaking drumming simulations required 1,815 pallet positions. Meanwhile, in actual conditions, the rack for dove and soap is allocated 2,834 pallet positions and 2,400 pallet positions for flaking and bagging. Class division using the ABC Classification method is carried out so that Class A, which is a group of Fast-Moving items, is brought closer to the receiving department, Class B, which is a group of Slow-Moving items, is placed after the placement of class A, then class C, which is also a group of Slow-Moving items, is placed after class B. Moreover, the results of slow-moving product optimization are seen from a reduction of 32,608 pcs from 581,096 pcs in July 2021 to 525,281 pcs in December 2021, and a reduction of $92,485 from $774,644 in July 2021 to $620,292 in December in the slow-moving value.
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Kang, Dong-Joong, Jong-Eun Ha, and Tae-Jung Lho. "A Fast Method for Detecting Moving Vehicles Using Plane Constraint of Geometric Invariance." In Computational Science and Its Applications - ICCSA 2006. Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11751595_122.

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Nguyen, Xuan Vu, Van Hai Luong, Tan Ngoc Than Cao, and Minh Thi Tran. "Hydroelastic Analysis of Floating Plates Subjected to Moving Loads in Shallow Water Condition by Using the Moving Element Method." In Lecture Notes in Civil Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5144-4_109.

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Ozbay, Baris N., Gregory L. Futia, Ming Ma, et al. "Miniature Multiphoton Microscopes for Recording Neural Activity in Freely Moving Animals." In Neuromethods. Springer US, 2023. http://dx.doi.org/10.1007/978-1-0716-2764-8_7.

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AbstractMiniaturized head-mounted microscopes for in vivo recording of neural activity have gained much recognition within the past decade of neuroscience research. In combination with fluorescent reporters, these miniature microscopes allow researchers to record the neural activity that underlies behavior, cognition, and perception in freely moving animals. Single-photon miniature microscopes are convenient for widefield recording but lack the increased penetration depth and optical sectioning capabilities of multiphoton imaging. Here we discuss the current state of head-mounted multiphoton miniature microscopes and introduce a miniature head-mounted two-photon fiber-coupled microscope (2P-FCM) for neuronal imaging with active axial focusing enabled using a miniature electrowetting lens. The 2P-FCM enables three-dimensional two-photon optical recording of structure and activity at multiple focal planes in a freely moving mouse. Detailed methods are provided in this chapter on the 2P-FCM design, operation, and software for data analysis.
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Kim, Jeong-Hyun, Zhu Teng, Dong-Joong Kang, and Jong-Eun Ha. "Multiple Plane Detection Method from Range Data of Digital Imaging System for Moving Robot Applications." In Augmented Vision and Reality. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-55131-4_11.

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Conference papers on the topic "Moving planes method"

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Mazumder, A. K. M. Monayem H. "Finite Element Method for Fluid Flow in 3D Domains Containing Moving Interfaces." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-10016.

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Abstract This study presented a three-dimensional (3D) finite element method (FEM) for the numerical analysis of fluid flow in domains containing moving interfaces. This method falls into the general category of Arbitrary Lagrangian Eulerian (ALE) method; based on a fixed mesh that is locally adapted at the moving interfaces and reverts to its original shape once the moving interfaces go over the elements. The 3D domain occupied by the fluid at any time in the simulation is used as the reference domain and is discretized using a mesh of hexahedral tri-linear isoparametric finite elements. The moving interfaces are defined by sets of marker points so that the global mesh is independent of interface movement and eliminates the possibility of mesh entanglement. The mesh never becomes unsuitable due to its continuous deformation, thus eliminating the need for repeated re-meshing and interpolation. A validation is presented via a problem with an analytical solution for the 3D flow between two planes separating at a prescribed speed that shows second order accuracy. The model’s capabilities are illustrated through application to laminar incompressible flows in different geometrical settings that show the flexibility of the technique.
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Teller, Davida Y., and Delwin J. Lindsey. "Motion photometry: additivity and the isoluminant plane." In OSA Annual Meeting. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.thf4.

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Subjects viewed a 2.3 × 2.3 O-patch of a moving 1.3 c/d, 3.75 Hz sinusoidal grating, centered at 1.8° temporal, through an achromatizing lens and an artificial pupil. The grating could be modulated in luminance and/or chromaticity, along many axes (azimuths and elevations), through a central white point. Near isoluminance, subjects perceived a clear "dead zone" within which no motion was seen. The upper and lower boundaries of the "dead zone" were perceptually striking and could be rapidly and consistently estimated by the method of adjustment. For the first subject tested, over the entire color gamut of the video system used, the measurements defined two parallel planes separated by twice the luminance contrast threshold. The plane bisecting the motion "dead zone" lay close to the plane defined by Judd's modified Vλ. These results suggest that the motion "dead zone" defines null values for an additive, univariant luminance mechanism and help to legitimize motion photometry as a luminance calibration technique for use with video displays.
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Wnuk, Marian. "Limiting the risk to the environment by measuring the characteristics of antennas in the near zone." In 13th International Conference on Applied Human Factors and Ergonomics (AHFE 2022). AHFE International, 2022. http://dx.doi.org/10.54941/ahfe1002531.

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Measurements in the near zone and the subsequent use of the analytical method and transforming the obtained results to determine the radiation characteristics, which can conveniently replace the conventional far-field range tests. It comes down to the use of closed rooms, such as anechoic chambers, which provide appropriate conditions to carry out measurements and inspections and favourable weather conditions. This is a very cost-effective and time-effective method. The determined characteristics are almost identical in terms of accuracy like those set in the far field. The downside is that some measurements require complex software and their duration is much longer than the real one.The measurement with the probe covers the phase and amplitude of the signal after a predefined scanning area, which is different for each antenna and therefore also the methods, since the method is selected according to the antenna under test. The rectangular planar method was used in the work.After constructing a measuring station and taking measurements, they are transformed by using the Fourier transformation. In the study of a parabolic antenna, these were not complicated operations because planar methods are characterized by simplicity of calculations, in contrast to more difficult cylindrical methods and much more complicated spherical methods.The measurement consists in collecting data on amplitude and phase through a second antenna, which acts as a measuring probe, at specified distance intervals in the azimuthal and elevation directions. Therefore, the used fin antenna is moving on the antenna mast in two planes. The obtained results must be entered into a computer program in order to plot the characteristics.All the considerations, along with the concept of the measurement stand, were based on theoretical foundations, based on knowledge of the types of antennas and their parameters, knowledge of the near zone and its properties, and the behaviour of the signal during measurements.
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Notohardjono, Budy D., and Robert Sanders. "Static and Dynamic Handling Stability of Server Rack Computers." In ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/esda2014-20473.

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This paper discusses the static and dynamic stability analysis of rack or frame computer/server products during shipping and relocation. The static stability is the ability of server products to resist tipping over on a typical raised floor in a datacenter or when it is installed in its operational product environment. The dynamic stability is the ability to resist tipping over when a velocity change occurs during re-location either on flat or inclined planes. The product consists of a frame or a rack in which components such as processor units, input-output units and power supplies are installed. The static stability analysis presented here calculates the tip over threshold angle, which is the maximum angle of an inclined plane on which the product can be placed without tipping over. The location of the installed components in a frame, the dimension and weight of the installed components, and the dimension of the product dictate the overall static stability of the product. Specifically, those parameters affect the location of the center of gravity of the product and the tip over threshold angle. The tip over threshold angle is a critical parameter influencing the dynamic stability of the product.. The dynamic stability of an unpackaged product moving on casters can be calculated using the conservation of mechanical energy principle. Finite element modeling is a good way to evaluate the dynamic stability of a product during manual handling or mechanical handling; for instance, on a forklift. The objective of the finite element modeling is to provide guidelines on the maximum speed, minimum radius curvature, and safe turning speed of a forklift when transporting a product. The main objective of the analysis presented here is to provide a method for analyzing the static and dynamic stability of a rack style computer server product during shipping, relocation, and handling.
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Dobson, Sarah L., Pang-chen Sun, and Yeshayahu Fainman. "Diffractive Optical Element for Chromatic Confocal Imaging." In Diffractive Optics and Micro-Optics. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/domo.1996.dtua.2.

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Confocal scanning imaging technique is attractive for various microscopic imaging applications due to its superior resolution, rejection of scattered light, and depth discrimination [1-3]. This method attracted special interest in such applications as imaging biological and semiconductor materials, where high definition in both the transverse and longitudinal dimensions is required. The unique property of the depth discrimination enables the confocal microscope to measure the depth image of a 3-D object by moving different parts of the object transversally and longitudinally into the focal region. The precision of the depth measurement depends on the depth Point-Spread-Function (PSF) of the confocal imaging system as well as the depth resolution of the depth scanning device. To achieve high depth resolution, most of the existing confocal imaging systems use a high precision and very stable mechanical scanning methods. In contrast, chromatic confocal microscope alleviates the requirement of the mechanical depth scanning by employing a broadband light source (e.g., white light source) and a dispersive objective lens for wavelength-depth coding [2-4]. With this method different spectral components of the source are focused onto different depth planes of the object, and the measured output power spectrum is directly translated into the depth information of the object. Furthermore, the chromatic confocal microscope can perform parallel depth measurements when the output power spectrum components are detected and analyzed in parallel.
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Lee, Usik, and Joohong Kim. "Modal Spectral Element for the Transverse Vibrations of Axially Moving Wide-Band Strips." In ASME 2002 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/detc2002/cie-34469.

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The use of frequency-dependent spectral element matrix (or dynamic stiffness matrix) in structural dynamics is known to provide very accurate solutions, while reducing the number of degrees-of-freedom to resolve the computational and cost problems. Thus, in the present paper, the modal spectral element is formulated for thin plates moving with constant speed under a uniform in-plane axial tension. The concept of Kantorovich method is used to formulate the modal spectral element matrix in frequency-domain. The present modal spectral element is then evaluated by comparing its solutions with exact analytical solutions and FEM solutions. The effects of the moving speed and the in-plane tension on the dynamic characteristics of a moving plate are numerically investigated.
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Kuznetsov, B., I. Bovdui, and T. Nikitina. "Nonlinear Robust Control Parametric Synthesis by Moving Plants with Elastic Elements." In 2020 IEEE 6th International Conference on Methods and Systems of Navigation and Motion Control (MSNMC). IEEE, 2020. http://dx.doi.org/10.1109/msnmc50359.2020.9255656.

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Santos, Plínio, Marcelo Pereira, and Mauricio Donadon. "ANALYSIS OF LAMINATE COMPOSITE PLATES USING MOVING LEAST SQUARE RITZ METHOD." In 26th International Congress of Mechanical Engineering. ABCM, 2021. http://dx.doi.org/10.26678/abcm.cobem2021.cob2021-0276.

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Gurunathan, B., and S. G. Dhande. "A Computer Aided Geometric Method for Development of Conical Convolutes." In ASME 1987 Design Technology Conferences. American Society of Mechanical Engineers, 1987. http://dx.doi.org/10.1115/detc1987-0047.

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Abstract Convolutes are single curved, ruled surfaces formed by moving a plane tangent to two curves called the directrices. Conical convolutes are one form of convolutes. If atleast one of the two planar directrices is a super-ellipse, then the surface is called a super-conical convolute. Necessary mathematical expressions for the geometrical details as well as the development of the super-conical convolute surface are given in this paper. Also a suitable algorithm for the development of the surface is given. An illustrative case study is presented.
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Gonzalez-Martino, Ignacio, and Sébastien Gautier. "Unsteady Flow Physics and Performance Prediction of a 1-1/2 Stage Unshrouded High Work Turbine Using the Lattice Boltzmann Approach." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-56364.

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A comparison between experimental measurements and simulations of a 1-1/2 stage unshrouded high work turbine are presented. The experimental investigations were conducted by the Turbomachinery Laboratory of ETH Zurich. The data was obtained from steady and unsteady probe measurements that were performed in four axial planes between stator and rotor rows. Simulations have be performed using the commercial CFD solver PowerFLOW based on the Lattice Boltzmann (LB) method to compute unsteady flow fields. The turbulent flow fluctuations are resolved up to a certain scale using a so-called Very Large Eddy Simulation (VLES) approach. One crucial aspect of the present study is the use a new non-isothermal version of the LB model that allows extending the Mach number range of the standard PowerFLOW scheme up to about 0.9. These unsteady simulations have been used to better understand the different flow structures observed in the experiments, and in particular the mechanisms of tip leakage across the blades of the unshrouded turbine rotor. In the present work, the complete 1-1/2 stage turbine with time-accurate moving rotor geometry has been simulated using the LB solver. This means that no blade reduction technique or almost-periodic flow hypothesis have been used in the simulation. The geometry was modified in order to close the rotor tip gap and do not consider its effects. A thorough comparison of these two simulations with the experimental data has been conducted and presented in the paper: averaged quantities along the turbine stage such as pressure drop, the degree of reaction, the loading coefficient, and the flow coefficient; averaged midspan inlet and exit angles for each turbine blade rows; and flow distribution at four axial planes between the rotor and stator rows. Moreover, a deep analysis of the unsteady flows in the blade channel has been performed in order to better understand the flow features observed in the experimental measurements. Finally, it has been be possible to analyze the interaction modes between turbine rows thanks to the simulation of the full 360° geometry and its time-accurate approach.
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Reports on the topic "Moving planes method"

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Zilberman, Mark. Methods to Test the “Dimming Effect” Produced by a Decrease in the Number of Photons Received from Receding Light Sources. Intellectual Archive, 2020. http://dx.doi.org/10.32370/iaj.2437.

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The hypothetical “Dimming Effect” describes the change of the number of photons arriving from a moving light source per unit of time. In non-relativistic systems, the “Dimming effect” may occur due to the growing distance of light sources moving away from the receiver. This means that due to the growing distance, the photons continuously require more time to reach the receiver, which reduces the number of received photons per time unit compared to the number of emitted photons. Understandably, the proposed “Dimming effect” must be tested (confirmed or rejected) through observations. a. This article provides the formula for the calculation of “Dimming effect” values using the redshift parameter Z widely used in astronomy. b. The “Dimming effect” can possibly be detected utilizing the orbital movement of the Earth around the Sun. In accordance to the “Dimming effect”, observers on Earth will view 1.0001 more photons per time unit emitted by stars located near the ecliptic plane in the direction of the Earth orbiting the Sun. And, in contrast, observers will view only 0.9999 photons per time unit emitted by stars located near the ecliptic plane in the direction opposite to the Earth orbiting the Sun. Calculating precise measurements of the same stars within a 6-month period can possibly detect this difference. These changes in brightness are not only for specific stars, as the change in brightness takes place for all stars near the ecliptic in the direction of the Earth’s orbit around the Sun and in the opposite direction. c. The “Dimming effect” can possibly be detected in a physics laboratory using a moving light source (or mirror) and photon counters located in the direction of travel and in the opposite direction. d. In theory, Dilation of time can also be used for testing the existence of the “Dimming effect.” However, in experiments on Earth this effect appears in only the 14th digit after the decimal point and testing does not appear to be feasible. e. Why is it important to test the “Dimming effect?” If confirmed, it would allow astronomers to adjust values of "Standard Candles" used in astronomy. Since “Standard Candles” are critical in various cosmological models, the “Dimming effect” can correct models and/or reveal and support new models. If it is proved that the “Dimming effect” does not exist, it will mean that the number of photons arriving per unit of time does not depend on the speed of the light source and observer, which is not so apparent.
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Xu, Jin-Rong, and Amir Sharon. Comparative studies of fungal pathogeneses in two hemibiotrophs: Magnaporthe grisea and Colletotrichum gloeosporioides. United States Department of Agriculture, 2008. http://dx.doi.org/10.32747/2008.7695585.bard.

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Plant pathogenic fungi have various life styles and different plant infection strategies. Hemibiotrophs like Magnaporthe grisea and Colletotrichum species develop specialized structures during plant infection. The goal of this study was to identify, characterize, and compare genes required for plant infection in M. grisea and C. gloeosporioides. Specific objectives are to: 1) further characterize genes identified in the preliminary studies of C. gloeosporioides and M. grisea;2) identify and characterize additional fungal genes tagged by GFP; and 3) identify in planta growth and appressorium-specific genes by subtractive hybridization and transcript profiling by the LongSAGE method. In this study, the PI and Co-PI collaborated closely on studies in M. grisea and C. gloeosporioides. In M. grisea, REMI and ATMT were used to transform the wildtype with promoter-less EGFP constructs. A total of 28 mutants defective in different plant infection processes or expressing EGFP during plant infection were identified. Genes disrupted in five selected mutants have been identified, including MG03295 that encodes a putative Rho GTPase. In transformant L1320, the transforming vector was inserted in the MIRI gene that encodes a nuclear protein. The expression of MIRI was highly induced during infection. Deletion and site-directed mutagenesis analyses were used to identify the promoter regions and elements that were essential for induced in planta expression of MIRI. This was the first detailed characterization of the promoter of an in planta gene in M. grisea and the MIRI promoter can be used to monitor infectious growth. In addition, the Agilent whole-genome array of M. grisea was used for microarray analyses with RNA samples from appressoria formed by the wild-type shain and the pmkl and mstl2 mutants. Over 200 genes were downregulated in the mst I 2 and pmkl mutants. Some of them are putative transcription factors that may regulate appressorium formation and infectious hyphal growth. In C. gloeosporioides, various REMI mutants showing different pathogenic behavior were identified and characterized. Mutants N3736 had a single insertion and was hyper-virulent. The gene disrupted in mutant3736 (named CgFMOI) encodes a FAD-dependent monooxygenase. Expression analyses linked the expression of the CgFMOI gene with the necrotrophic phase of fungal infection, and also suggest that expression of CgFMOl is unnecessary for the first stages of infection and for biotrophy establishment. All CgFMOl-silenced mutants had reduced virulence. In REMI mutant N159, the tagged gene encodes a putative copper transporter that is homologue of S. cerevisiae CTR2. In yeast, Ctr2 is a vacuolar transporter for moving copper from the vacuole to the cytoplasm. The gene was therefore termed CgCTR2. In addition to characterization of CgCTR2, we also conducted comparative analyses in M. grisea. The M. grisea CgCTR-2 homolog was isolated, knockout strains were generated and characterized and the M. grisea was used to complement the Nl 59 C. gloeosporioides mutant. Overall, we have accomplished most of proposed experiments and are in the process of organizing and publishing other data generated in this project. For objective 3, we used the microarray analysis approach. Several genes identified in this study are novel fungal virulence factors. They have the potential to be used as targets for developing more specific or effective fungicides. In the long run, comparative studies of fungal genes, such as our CgCTR2 work, may lead to better disease control strategies.
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Microbiology in the 21st Century: Where Are We and Where Are We Going? American Society for Microbiology, 2004. http://dx.doi.org/10.1128/aamcol.5sept.2003.

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The American Academy of Microbiology convened a colloquium September 5–7, 2003, in Charleston, South Carolina to discuss the central importance of microbes to life on earth, directions microbiology research will take in the 21st century, and ways to foster public literacy in this important field. Discussions centered on: the impact of microbes on the health of the planet and its inhabitants; the fundamental significance of microbiology to the study of all life forms; research challenges faced by microbiologists and the barriers to meeting those challenges; the need to integrate microbiology into school and university curricula; and public microbial literacy. This is an exciting time for microbiology. We are becoming increasingly aware that microbes are the basis of the biosphere. They are the ancestors of all living things and the support system for all other forms of life. Paradoxically, certain microbes pose a threat to human health and to the health of plants and animals. As the foundation of the biosphere and major determinants of human health, microbes claim a primary, fundamental role in life on earth. Hence, the study of microbes is pivotal to the study of all living things, and microbiology is essential for the study and understanding of all life on this planet. Microbiology research is changing rapidly. The field has been impacted by events that shape public perceptions of microbes, such as the emergence of globally significant diseases, threats of bioterrorism, increasing failure of formerly effective antibiotics and therapies to treat microbial diseases, and events that contaminate food on a large scale. Microbial research is taking advantage of the technological advancements that have opened new fields of inquiry, particularly in genomics. Basic areas of biological complexity, such as infectious diseases and the engineering of designer microbes for the benefit of society, are especially ripe areas for significant advancement. Overall, emphasis has increased in recent years on the evolution and ecology of microorganisms. Studies are focusing on the linkages between microbes and their phylogenetic origins and between microbes and their habitats. Increasingly, researchers are striving to join together the results of their work, moving to an integration of biological phenomena at all levels. While many areas of the microbiological sciences are ripe for exploration, microbiology must overcome a number of technological hurdles before it can fully accomplish its potential. We are at a unique time when the confluence of technological advances and the explosion of knowledge of microbial diversity will enable significant advances in microbiology, and in biology in general, over the next decade. To make the best progress, microbiology must reach across traditional departmental boundaries and integrate the expertise of scientists in other disciplines. Microbiologists are becoming increasingly aware of the need to harness the vast computing power available and apply it to better advantage in research. Current methods for curating research materials and data should be rethought and revamped. Finally, new facilities should be developed to house powerful research equipment and make it available, on a regional basis, to scientists who might otherwise lack access to the expensive tools of modern biology. It is not enough to accomplish cutting-edge research. We must also educate the children and college students of today, as they will be the researchers of tomorrow. Since microbiology provides exceptional teaching tools and is of pivotal importance to understanding biology, science education in schools should be refocused to include microbiology lessons and lab exercises. At the undergraduate level, a thorough knowledge of microbiology should be made a part of the core curriculum for life science majors. Since issues that deal with microbes have a direct bearing on the human condition, it is critical that the public-at-large become better grounded in the basics of microbiology. Public literacy campaigns must identify the issues to be conveyed and the best avenues for communicating those messages. Decision-makers at federal, state, local, and community levels should be made more aware of the ways that microbiology impacts human life and the ways school curricula could be improved to include valuable lessons in microbial science.
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