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Автор: Grafiati
Опубліковано: 30 травня 2022
Оновлено: 31 травня 2022

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Статті в журналах з теми "Compression of flexible roll"

1

Yu, Dan, Dirk Beckelmann, Michael Opsölder, Bruno Schäfer, Karsten Moh, René Hensel, Peter de Oliveira, and Eduard Arzt. "Roll-to-Roll Manufacturing of Micropatterned Adhesives by Template Compression." Materials 12, no. 1 (December 29, 2018): 97. http://dx.doi.org/10.3390/ma12010097.

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Анотація:
For the next generation of handling systems, reversible adhesion enabled by micropatterned dry adhesives exhibits high potential. The versatility of polymeric micropatterns in handling objects made from various materials has been demonstrated by several groups. However, specimens reported in most studies have been restricted to the laboratory scale. Upscaling the size and quantity of micropatterned adhesives is the next step to enable successful technology transfer. Towards this aim, we introduce a continuous roll-to-roll replication process for fabrication of high-performance, mushroom-shaped micropatterned dry adhesives. The micropatterns were made from UV-curable polyurethane acrylates. To ensure the integrity of the complex structure during the fabrication process, flexible templates were used. The compression between the template and the wet prepolymer coating was investigated to optimize replication results without structural failures, and hence, to improve adhesion. As a result, we obtained micropatterned adhesive tapes, 10 cm in width and several meters in length, with adhesion strength about 250 kPa to glass, suitable for a wide range of applications.
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2

Vanarelli, Alex, and John W. Gillespie. "Response of thin flexible compression columns with self-reacting lateral constraint." Journal of Composite Materials 56, no. 7 (February 18, 2022): 1107–22. http://dx.doi.org/10.1177/00219983211070094.

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The study investigates the effects of self-reacting lateral constraint on the compression load capacity of thin composite columns. A dynamic finite element analysis model is developed to aid in the optimization of the column lateral constraint which leads to a 50-fold increase in load capacity over the first critical buckling load. First, the model is compared against known analytical solutions for a column buckling between bi-lateral constraints. Next, the constraints are made to float and self-react, and the model is developed to study the role of column geometry, material properties, and initial gap between the column and lateral constraint on post-buckling response. Experiments are conducted over a wide range of column lengths and gap thicknesses and the load-deformation response including snap-through buckling loads, and buckling modes are measured and compared to model predictions. It is shown that the load capacity of thin composite columns can be increased to an upper bound governed by the membrane compressive strength of the column by using optimal constraint conditions.
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3

Słowik, J., A. Drotlew, and B. Piekarski. "Mechanical Stresses Induced by Compression in Castings of the Load-carrying Grate." Archives of Foundry Engineering 16, no. 2 (June 1, 2016): 51–54. http://dx.doi.org/10.1515/afe-2016-0025.

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Abstract The main aim of this study was to examine the compression-induced state of stress arising in castings of the guide grates during operation in pusher-type furnaces for heat treatment. The effect of grate compression is caused by its forced movement in the furnace. The introduction of flexible segments to the grate structure changes in a significant way the stress distribution, mainly by decreasing its value, and consequently considerably extends the lifetime of the grates. The stress distribution was examined in the grates with flexible segments arranged crosswise (normal to the direction of the grate compression) and lengthwise (following the direction of force). A regression equation was derived to describe the relationship between the stress level in a row of ribs in the grate and the number of flexible segments of a lengthwise orientation placed in this row. It was found that, regardless of the distribution of the flexible segments in a row, the stress values were similar in all the ribs included in this row, and in a given row of the ribs/flexible segments a similar state of stress prevailed, irrespective of the position of this row in the whole structure of the grate and of the number of the ribs/flexible segments introduced therein. Parts of the grate responsible for the stress transfer were indicated and also parts which play the role of an element bonding the structure.
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4

He, Qinglie, Chengbiao Cai, Shengyang Zhu, Kaiyun Wang, Yongzhi Jiang, and Wanming Zhai. "Improvement on Curve Negotiation Performance of Suspended Monorail Vehicle Considering Flexible Guideway." International Journal of Structural Stability and Dynamics 20, no. 05 (May 2020): 2050057. http://dx.doi.org/10.1142/s0219455420500571.

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This work presents the investigation and improvement on curve negotiation performance of suspended monorail vehicle considering a flexible guideway. First, a spatial train–guideway interaction model of suspended monorail system (SMS) is established based on the secondary development of ANSYS software. Then, the dynamic analysis of the train over the flexible curved guideway is conducted, and the curve negotiation performance of the vehicle and the guideway vibration feature are revealed. Subsequently, several crucial design parameters that significantly influence the curve negotiation performance of the vehicle are found, and their influences on the train–guideway dynamic responses are systematically investigated. Finally, by comprehensively considering the dynamic indexes of the vehicle–guideway system, the optimal ranges of these crucial design parameters are obtained. Results show that decreasing the radial stiffness of guiding tyre can effectively reduce the lateral vibration levels of vehicle and guideway, but it would increase the lateral displacements of the bogie and hanging beam; and the radial stiffness is finally suggested to be around 1[Formula: see text]kN/mm by comprehensively considering all dynamic indexes. Increasing the initial compression displacement of guiding tyre can well limit the lateral displacements of the bogie and the hanging beam, thus enhancing the train running safety; however, it would intensify the vehicle-guideway lateral vibration level; especially, the optimal initial compression displacement of guiding tyre is related to its radial stiffness characteristics. To ensure a good curve negotiation performance of vehicle and guideway vibration level, the stiffness of the anti-roll torsion bar and the initial gradient angle of the installed trapezoid four-link suspended device are suggested to be 1.0[Formula: see text]MNm/rad and 65–[Formula: see text], respectively.
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Sedláček, František, Václava Lašová, and Radek Kottner. "Strength Determination of Composite Flexible Joint." Applied Mechanics and Materials 827 (February 2016): 149–56. http://dx.doi.org/10.4028/www.scientific.net/amm.827.149.

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This thesis deals with the design of a joint for composite flexible elements using an integrated connection. For the verification of the selected layout, a wrapping loop was chosen as a simplified member, which was created on a special form designed for these samples. The material used was unidirectional fibreglass and epoxy resin. These samples were then compared using quasi-static tensile and compression tests. The tests were carried out with the Zwick-Roell Z050 machine. The resulting data of the experiment were then compared with the data obtained from numerical simulations using the finite element system Siemens NX 10 and SIMULIA Abaqus 6.13. 3D strength criteria Maximum stress and direct-mode strength criterion LaRC04 were used for evaluation.
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6

Park, Ji-Woo, Jeong Kim, and Beom-Soo Kang. "Development on a Prediction Model for Experimental Condition of Flexibly Reconfigurable Roll Forming Process." Metals 9, no. 8 (August 15, 2019): 896. http://dx.doi.org/10.3390/met9080896.

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Анотація:
Flexibly-reconfigurable roll forming (FRRF) is a novel sheet metal forming technology by which sheet metal is shaped into a desired curvature using reconfigurable rollers and gaps. FRRF is conducive to producing multi-curvature surfaces by controlling the longitudinal strain distribution. However, it is difficult to predict the forming results since FRRF technology forms a secondary surface from the primary curvature. This study investigates the use of regression analysis as a basis for a model that can predict the longitudinal curvature of sheet metal. The following variables were considered as input parameters: Maximum compression value, radius of curvature in the transverse direction, and initial blank width. Regression model samples are obtained by performing experiments using FRRF equipment whilst the experimental design was generated by a three-level, three-factor full factorial design. The experimental surfaces are of a convex and of a saddle-type shape, with a total sample size of 54. Through regression analysis it has been shown that the longitudinal curvature can be expressed by means of a quadratic equation. The matching quadratic function was verified with R-squared values and root-mean-square errors, whilst the normality of the sample data was also verified. To apply the model to the actual forming process, the regression model was converted to deduce the compression characteristics for forming the target surface. Throughout the study, the proposed analytical procedure was validated, and a statistical formula for estimating the longitudinal curvature produced by the FRRF apparatus established.
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7

Shirazi-Adl, A., and M. Parnianpour. "Stabilizing Role of Moments and Pelvic Rotation on the Human Spine in Compression." Journal of Biomechanical Engineering 118, no. 1 (February 1, 1996): 26–31. http://dx.doi.org/10.1115/1.2795942.

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The mechanisms by which the human spinal column in neutral postures can resist relatively large axial compression forces with no abnormal motions or instabilities remain yet unknown. A nonlinear finite element study of the ligamentous thoracolumbar spine was performed to investigate the stabilizing role of two plausible mechanisms of combined moments and pelvic rotation on the human spine in axial compression. The passive system, by itself was able to carry only a negligible fraction of physiological compression loads without exhibiting large motions. The unconstrained spine was most flexible in the sagittal plane (least stiff plane). The existence of combined moments and pelvic rotation significantly increased the load-bearing capacity of the spine so that the free standing passive thoracolumbar spine resisted the axial compression forces of more than 1000 N with minimal displacements. The former mechanism is much more effective in stabilizing the spine in compression than is the latter one. It is postulated that the pelvic rotation and the off-centered anterior placement of the gravity force are exploited to partially stabilize the passive spine in compression and relieve the musculature. Previous and on-going studies support the validity of the proposed mechanisms.
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Magrinho, JPG, CMA Silva, MB Silva, and Paulo AF Martins. "Formability limits by wrinkling in sheet metal forming." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 232, no. 8 (April 5, 2016): 681–92. http://dx.doi.org/10.1177/1464420716642794.

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This paper presents a new combined experimental and theoretical methodology for determining the formability limits by wrinkling in sheet metal forming. The methodology is based on the utilization of rectangular test specimens clamped along its narrower sides and compressed lengthwise and is aimed at replicating the physics behind the occurrence of wrinkling in deformation regions submitted to in-plane compression along one direction. The methodology draws from a previous development in the field of flexible roll forming, and the overall objectives are to enhance and improve its methods and procedures and to provide a new level of understanding on the onset of wrinkling in sheet metal forming. Experimentation and finite element modelling of cylindrical deep-drawing without blank holder combined with the utilization of the space of effective strain vs. stress triaxiality are employed to discuss the applicability and validity of the new proposed methodology for determining the formability limits by wrinkling.
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Pang, Zaixiang, Tongyu Wang, Junzhi Yu, Shuai Liu, Xiyu Zhang, and Dawei Jiang. "Design and Analysis of a Flexible, Elastic, and Rope-Driven Parallel Mechanism for Wrist Rehabilitation." Applied Bionics and Biomechanics 2020 (November 12, 2020): 1–13. http://dx.doi.org/10.1155/2020/8841400.

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This paper proposes a bionic flexible wrist parallel mechanism to simulate human wrist joints, which is characterized by a rope-driven, compression spring-supported hybrid mechanism. Specifically, to realize the movement of the wrist mechanism, a parallel structure is adopted to support the mobile platform and is controlled by a cable, which plays the role of wrist muscles. Because the compression spring is elastic, it is difficult to directly solve inverse kinematics. To address this problem, the external force acting on the moving platform is firstly equivalent to the vector force and torque at the center of the moving platform. Then, based on inverse kinematic and static analyses, the inverse motion of the robot model can be solved according to the force and torque balance conditions and the lateral spring bending equation of the compression spring. In order to verify the proposed method, kinematics, statics, and parallel mechanism workspace are further analyzed by the software MATLAB. The obtained results demonstrate the effectiveness and feasibility of the designed parallel mechanism. This work offers new insights into the parallel mechanism with flexible joints in replicating the movements of the human wrist, thus promoting the development of rehabilitation robots and rope-driven technology to some extent.
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Tong, Zhao-Xia, Lian-Wei Zhang, and Min Zhou. "DEM Simulation of Biaxial Compression Experiments of Inherently Anisotropic Granular Materials and the Boundary Effects." Journal of Applied Mathematics 2013 (2013): 1–13. http://dx.doi.org/10.1155/2013/394372.

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The reliability of discrete element method (DEM) numerical simulations is significantly dependent on the particle-scale parameters and boundary conditions. To verify the DEM models, two series of biaxial compression tests on ellipse-shaped steel rods are used. The comparisons on the stress-strain relationship, strength, and deformation pattern of experiments and simulations indicate that the DEM models are able to capture the key macro- and micromechanical behavior of inherently anisotropic granular materials with high fidelity. By using the validated DEM models, the boundary effects on the macrodeformation, strain localization, and nonuniformity of stress distribution inside the specimens are investigated using two rigid boundaries and one flexible boundary. The results demonstrate that the boundary condition plays a significant role on the stress-strain relationship and strength of granular materials with inherent fabric anisotropy if the stresses are calculated by the force applied on the wall. However, the responses of the particle assembly measured inside the specimens are almost the same with little influence from the boundary conditions. The peak friction angle obtained from the compression tests with flexible boundary represents the real friction angle of particle assembly. Due to the weak lateral constraints, the degree of stress nonuniformity under flexible boundary is higher than that under rigid boundary.
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Дисертації з теми "Compression of flexible roll"

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Марусич, Максим Ігорович. "Чотирьохвалковий каландр з модернізацією механізму прогину валка". Master's thesis, Київ, 2018. https://ela.kpi.ua/handle/123456789/27146.

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Знайдено шляхи модернізації механізмів компенсації прогину валка і перехрещення валків. Проведено порівняльні розрахунки базових конструкцій та модернізованої а також параметричні, кінематичні, теплові розрахунки та розрахунки на міцність, які підтверджують працездатність агрегату та доцільність обраної модернізації. Розроблено start-up проект в якому були проаналізовані всі можливості та загрози майбутнього виробництва, визначено сильні та слабкі сторони за рахунок яких є можливість виходу на провідні позиції в виробництві лінолеуму та реліну.
After conducting literature and patent examinations, ways were found to modernize the mechanisms for compensating the roll deflection and the intersection of the rolls. Comparative calculations of basic structures and modernized, as well as parametric, kinematic, thermal calculations and strength calculations, confirming the efficiency of the unit and the feasibility of the selected modernization, are carried out. A start-up project was developed in which all the possibilities and threats of future production were analyzed, strengths and weaknesses were identified due to which it is possible to reach leading positions in the production of linoleum and relien. developed a scheme of automation and measures of labor protection.
Найдены пути модернизации механизмов компенсации прогиба валка и пересечения валков. Проведены сравнительные расчеты базовых конструкций и модернизированной а также параметрические, кинематические, тепловые расчеты и расчеты на прочность, подтверждающие работоспособность агрегата и целесообразность выбранной модернизации. Разработан start-up проект в котором были проанализированы все возможности и угрозы будущего производства, определены сильные и слабые стороны за счет которых есть возможность выхода на ведущие позиции в производстве линолеума и релина.
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2

Mccracken, David Ivan. "The development of a more flexible roll bending process." Thesis, Ulster University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.516523.

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Zhang, Jin. "Low-Cost Industrial Manufacturing of CIS-Based Flexible Solar Panels Using Roll-to-Roll Technology." Thesis, The University of Arizona, 2012. http://hdl.handle.net/10150/244825.

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Анотація:
Harnessing the power of the sun through photovoltaic cells is a new area of research and development and may hold the key to sustainable energy on earth. Currently, solar cells and panels with high efficiencies have been successfully created on a laboratory scale. However, in order for solar panels to be marketable and serve as a realistic replacement for current energy sources, a large-scale, high-throughput, and low-cost production system must be devised that is competitive with very cheap fossil fuels that currently dominate the market. The goal of this project is to mass scale the production and manufacturing of inorganic solar cells using cost-effective, roll-to-roll printing methods. Annually, 676 MW of power will be produced, representing 71% of the total US market share for photovoltaic technology, and sold to market at the price of $1/Watt. The design of the solar cell is based on a CuInS₂ absorber layer, ZnS buffer layer and ZnO and ZnO:Ga window layer. The film is printed on a flexible aluminum substrate, 20 inches wide, at a continuous rate of 100 ft/min and a silver-based metal contact is deposited on top. Over the project lifetime, a net present value assuming a 15% nominal interest of $1.7 billion is anticipated.
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Kojimoto, Nigel Costello. "Ultrasonic inspection methods for defect detection and process control in roll-to-roll flexible electronics manufacturing." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101811.

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Анотація:
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 97-100).
Roll-to-roll flexible electronics manufacturing technologies require new sensing and measurement capabilities for defect detection and process control. This body of work investigates the use of ultrasound, specifically Lamb and longitudinal waves, as a sensing modality and measurement technique for thin film roll-to-roll manufacturing. A variety of custom wedges were designed and machined from multiple materials to test their suitability at launching ultrasonic Lamb waves along Polyethylene Terephthalate (PET) film. Using hydrogel wedges, the fundamental antisymmetric (Ao) Lamb wave mode was successfully propagated a distance of 2 cm. ABS wedges were found to initiate longitudinal waves, which were detected at a distance of 5 cm. InstronTM based extension-tensile experiments revealed that the longitudinal wave is affected by tension in the PET, exhibited by a general increase in attenuation and a decrease in wave speed during plastic deformation; such variation may have process control applications.
by Nigel Costello Kojimoto.
S.M.
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5

Tobin, Vincent. "Roll-to-roll deposition of highly flexible organic-inorganic barrier layers for printed electronics and photovoltaics." Thesis, University of Oxford, 2018. https://ora.ox.ac.uk/objects/uuid:d6ea9bcb-171d-4fc6-95e4-51d0e8d4351a.

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This thesis investigates how to improve transparent flexible water vapour barriers by understanding how water permeates through them. The barriers consisted of a reactively sputtered aluminium oxide coating on an industrial-grade polypropylene substrate. Some also incorporated a di-acrylate smoothing layer. Key deposition conditions were studied and optimised for permeation and visible-light transparency: sputtering power, thickness & sequential deposition rate. One of the main deposition conditions corresponded to increasing coating nitrogen content in order to induce barrier-water interaction. The final investigation consisted of including acrylate layers in different barrier stacking combinations. It was found that thin, high sputter power coatings formed the best barriers to permeation. This was due to denser packing of the oxide and the inclusion of fewer macro-defects (large defects allowing unhindered permeation) and nano-defects (defects small enough to cause the permeant to interact with the coating). No clear benefit to permeation was found from the inclusion of nitrogen, but refractive index was seen to increase and the oxynitride coatings mechanically failed at a greater force than the oxides. This case illustrated the importance of considering the role of permeation through nano-defects: although a high activation energy was achieved for the nitrogen containing films, possibly suggesting greater interaction between the water vapour and the barrier, the amount of permeation was not reduced as the nitrogen gave rise to increased permeation due to nano-defects, thus changing the processing and chemistry can affect both the macro-defect and nano-defect permeation. Smoothing layers were found to reduce the permeation rate by covering large substrate features, thus allowing rough substrates to be used even for high barriers. Although a coating of acrylate on top of a barrier oxide showed no improvement, a 1-2-1-2 stack of smoothing layer (1) and oxide (2) was found to exhibit a large delay in the onset of permeation.
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Lindgren, Michael. "Experimental and computational investigation of the roll forming process." Doctoral thesis, Luleå : Division of Material Mechanics, Luleå University of Technology, 2009. http://pure.ltu.se/ws/fbspretrieve/3340038.

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Mulder, Aart. "Robust and flexible hardware implementation of ITU-G4." Thesis, Mittuniversitetet, Avdelningen för elektronikkonstruktion, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-24022.

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This project was carried out as thesis work during the last semester of my Master studies Electronics Design at the Mid Sweden University. Firstly, it considers a robust and exible implementation of ITU-G4 in hardware based on earlier work, and secondly, it covers review of related work and investigation in the weaknesses of two published designs. More specically, it is an investigation on the robustness of the previously developed VHDL implementation ofthe ITU-G4 algorithm. This includes designing of a debug interface to track the compression process inside the FPGA. The nal result, when comparing to earlier work and other published designs, the ITU-G4 compression performs without any glitches or crashes at certain patterns. The maximum frame rate the design can run at is 60fps at a frame size of 752x480 and clockrate of 33.3MHz. The design is tested with three sets of images: easy, medium and complexwhich are all successfully compressed. This includes imperfect images of bar-codes and Q-codes without the need of morphological preprocessing when comparing to the published design that needs preprocessing for medium and complex images to remove unexpected transitions.
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Guo, Yuanhao. "FUNCTIONAL POLYMER FILM ROLL-TO-ROLL MANUFACTURING BY FIELD ASSISTED ALIGNMENT OF NANOPARTICLES/PHASES IN THICKNESS "Z" DIRECTION." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1480441013340037.

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9

Yepez, Denisse E. "Analysis of a mechanical punching process to create registration holes on a continuous roll-to-roll flexible electronics substrates using SPC techniques." Diss., Online access via UMI:, 2008.

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Анотація:
Thesis (M.S.)--State University of New York at Binghamton, Thomas J. Watson School of Engineering and Applied Science, Department of Systems Science and Industrial Engineering, 2008.
Includes bibliographical references.
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10

Ahmadian, Alireza. "Flexible medical image transmission and compression schemes using multiresolution orthagonal wavelet transform." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300006.

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Книги з теми "Compression of flexible roll"

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Benedetto, Sergio. A flexible near-shannon SCCC turbo code for telemetry applications. Noordwijk, The Netherlands: ESA Publications Division, ESTEC, 2005.

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2

Kahn, Bruce E. Roll-To-Roll and Sheet-to-Sheet Fabrication of Flexible Electronics. Wiley & Sons, Limited, John, 2022.

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3

Jong, Jae Ho. Characteristics of jet impingement, drainage and compression in a forming roll of a twin-wire machine. 1998.

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4

Active load control during rolling maneuvers. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1994.

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5

Boehm, Heinrich, and Y. Raja Rampersaud. Treatment: spinal surgery. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780198734444.003.0023.

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Despite remarkable progress in understanding the pathological processes and alleviating symptoms by TNFα‎ blocking medication, the mechanism that converts flexible tissue into bone still cannot be completely prevented or reversed. In axial spondyloarthritis, components of motion segments, such as zygoapophyseal joints, intervertebral discs, and spinal ligaments, can ossify in varying sequence, extent, and location between the ilium and occiput. Throughout this process, the spinal column is vulnerable to kyphotic deformity due to gravity, body weight, muscle action, and life’s flexion-based activities. Areas with low fusion tendency, such as atlanto-axial joints, and post-traumatically weakened spots of formerly ankylosed vertebral block (Andersson’s lesion) can endanger the spinal cord by instability, dislocation, and compression, from what is typically minor trauma or simple repetitive, but otherwise normal, stresses. Once functionally significant deformity or presence of instability and associated symptoms are established, conservative treatment options are lacking and surgical consideration is required.
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Частини книг з теми "Compression of flexible roll"

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Galagan, Y. "Flexible Solar Cells." In Roll-to-Roll Manufacturing, 325–62. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119163824.ch11.

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2

Switzer, James C., and Mark D. Poliks. "Roll-to-Roll Processing of Flexible Glass." In Flexible Glass, 85–127. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781118946404.ch4.

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Montbach, E., and D. Davis. "Roll-to-Roll Manufacturing of Flexible Displays." In Roll-to-Roll Manufacturing, 285–323. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119163824.ch10.

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Gregg, Abbie, Lara York, and Mark Strnad. "Roll-to-Roll Manufacturing of Flexible Displays." In Flexible Flat Panel Displays, 409–45. Chichester, UK: John Wiley & Sons, Ltd, 2005. http://dx.doi.org/10.1002/0470870508.ch21.

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Kim, Dongun, Myung Hwan Cha, and Jae-Bok Nam. "Numerical Analysis for Flexible Roll Forming." In Proceedings of the 8th Pacific Rim International Congress on Advanced Materials and Processing, 2987–92. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-48764-9_369.

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Kim, Dongun, MyungHwan Cha, and Jae-Bok Nam. "Numerical Analysis for Flexible Roll Forming." In PRICM, 2987–92. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118792148.ch369.

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Olenick, John A., Viswanathan Venkateswaran, and Kathleen Olenick. "Roll-To-Roll Ultrathin Flexible Ceramic for Cost Effective Coating." In Ceramic Materials for Energy Applications V, 131–35. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119211709.ch11.

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Slafer, W. Dennis. "Techniques for Roll-to-Roll Manufacturing of Flexible Rectenna Solar Cells." In Rectenna Solar Cells, 337–69. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-3716-1_16.

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Sheu, Jinn-Jong, Bao-Shan Wang, and Cheng-Hsien Yu. "Tube Roll Forming Flower Design and Flexible Roll Adjustment with CAE Simulation." In Forming the Future, 523–35. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-75381-8_43.

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Böttcher, Stefan, and Rita Steinmetz. "DTD-Driven Structure Preserving XML Compression." In Flexible and Efficient Information Handling, 266–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11788911_27.

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Тези доповідей конференцій з теми "Compression of flexible roll"

1

Pesce, Celso P., Julio R. Meneghini, Clo´vis A. Martins, Jose´ A. P. Aranha, Jose´ A. Ferrari, and Renato M. C. da Silva. "Riser Technology and Industry-University Cooperation: Part II — Risers Loading — VIV, Heading and Dynamic Positioning." In ASME 2003 22nd International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2003. http://dx.doi.org/10.1115/omae2003-37491.

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Анотація:
This is the second of two companion papers intending to summarize and pointing out some of the main engineering achievements obtained through a continuous cooperative research effort, jointly conducted by Industry and University. Part I covered Riser Mechanics and design issues. Part II is dedicated to Riser Loading and Dynamic Positioning. In Part I (Pesce et al., 2003 [1]), SCR dynamics, touch down point dynamic interaction loading, catenary riser dynamic compression under twist, risers and umbilical cables structural mechanics, were treated and modeled through analytical and numerical methods. SCR design issues and fatigue assessment of flexible pipes were also addressed. In this second paper, Part II, VIV, extreme dynamic loading, nonlinear dynamics of FPSOs and turret positioning are presented. Nonlinear control techniques are addressed aiming to optimize FPSO heading, constrained to a cost function that takes into account risers loading, mooring tension, roll motion and fuel consumption.
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2

Chang, Fuh-Yu, Hung-Yi Lin, Wen-Lang Lai, Chia-Jen Ting, Jen-Hui Tsai, Shuo-Hung Chang, and Tung-Chuan Wu. "Roll to Roll Processing for Flexible Nanophotonics." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-34722.

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This article discusses the current status and achievements of R2R technology for large area nano-scaled optical devices developed at MSL/ITRI. Firstly, a single layer of nanostructure on polymer film is designed for anti-reflection purpose by finite difference time domain (FDTD) method in the visible light spectrum. The conical array with around 1 aspect ratio, like moth-eye shape and showing superior performance in the optical simulation, has been adapted for the R2R experiments. The development of R2R process includes roller machine design and fabrication, roller mold design and making, development of rolling imprint process, characterization of rolled devices. In this study, large area (200mm *200mm) Ni template was fabricated with DUV exposure, followed by dry etching and electroforming process, respectively. Then, the template was bonded on the roller mold with magnetic film to make nanostructure roller mold. With the delicate nanostructure roller mold, systematic experiments have been conducted on the home-made roller machine with various parameters, such as linear speed, dose rate, and material modifications. The duplicated nanostructure films show very good optical quality of anti-reflection (AR < 1%) and are in good agreement with the theoretical predictions. Besides, the duration of the roller mold has been highly promoted to hundreds of imprint in the UV embossing process.
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3

Kimbrough, Brad. "In-line roll-to-roll metrology for flexible electronics." In SPIE Optical Engineering + Applications, edited by Erik Novak and James D. Trolinger. SPIE, 2015. http://dx.doi.org/10.1117/12.2189905.

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4

Cooper, Khershed P., and Ralph F. Wachter. "High-rate, roll-to-roll nanomanufacturing of flexible systems." In SPIE NanoScience + Engineering, edited by Michael T. Postek, Victoria A. Coleman, and Ndubuisi G. Orji. SPIE, 2012. http://dx.doi.org/10.1117/12.940775.

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5

Tamagaki, H., Y. Ikari, and N. Ohba. "Roll-to-Roll Sputter Deposition on Flexible Glass Substrates." In Society of Vacuum Coaters Annual Technical Conference. Society of Vacuum Coaters, 2013. http://dx.doi.org/10.14332/svc13.proc.1066.

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6

Berland, Brian, R. Hollingsworth, N. Gomez, M. Stowell, W. Rance, and C. Wolden. "Roll to Roll Processing of Thin Flexible Energy Devices." In Society of Vacuum Coaters Annual Technical Conference. Society of Vacuum Coaters, 2015. http://dx.doi.org/10.14332/svc15.proc.1904.

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7

Saldanha, Anita C., Yi-Xian Qin, Vijay K. Goel, and Partap S. Khalsa. "Facet Joint Capsule Strains as a Result of Normal and Degenerate Intervertebral Discs." In ASME 2007 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2007. http://dx.doi.org/10.1115/sbc2007-176735.

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The normal spine is a flexible column designed to maintain stability, position and can carry a considerable load. Degeneration weakens the spine by adversely affecting spinal stability, which is observed when a motion segment exhibits abnormally large displacements under applications of physiological load[1]. Furthermore, degeneration noticeably changes the load-bearing role of the intervertebral disc (IVD) during compression and extension by shifting significantly to the facet joint (FJ)[2].
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8

Pesce, Celso P., Clo´vis A. Martins, Jose´ A. P. Aranha, Marcos O. Pinto, Roberto Ramos, and Renato M. da Silva. "Riser Technology and Industry-University Cooperation: Part I — Riser Mechanics." In ASME 2003 22nd International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2003. http://dx.doi.org/10.1115/omae2003-37488.

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Анотація:
This is the first of two companion papers intending to summarize and pointing out some of the main engineering achievements obtained through a continuous cooperative research effort, jointly conducted by Industry and University. Part I covers Riser Mechanics and design issues. Part II is dedicated to Riser Loading and Dynamic Positioning. The work starts with the first SCR (Steel Catenary Riser) concept and engineering analysis that paved the road toward a mature and reliable design which has been applied with success in floating production in Campos Basin, offshore Brazil. Several computer codes, numerical methods and analytical tools were developed and verified based on experimental results. In Part I, SCR dynamics, touch down point dynamic interaction loading, catenary riser dynamic compression under twist, as well as risers and umbilical cables structural mechanics, are treated and modeled through analytical and numerical methods. SCR design issues and fatigue assessment of flexible pipes are also addressed. In Part II [1], VIV (Vortex-Induced Vibration), extreme dynamic loading, nonlinear dynamics of FPSOs and turret positioning are presented. Nonlinear control techniques are also addressed aiming to optimize FPSO heading, constrained to a cost function that takes into account risers loading, mooring tension, roll motion and fuel consumption.
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9

Thi, Ly Tong, Lam Nguyen Tung, Cao Duc Thanh, Dich Nguyen Quang, and Quyen Nguyen Van. "Tension Regulation of Roll-to-roll Systems with Flexible Couplings." In 2019 International Conference on System Science and Engineering (ICSSE). IEEE, 2019. http://dx.doi.org/10.1109/icsse.2019.8823414.

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Pinarbasi, Mustafa, Serdar Aksu, James Freitag, Thomas Boone, Howard Zolla, Jorge Vasquez, Deepak Nayak, et al. "Flexible cells and modules produced using roll-to-roll electroplating approach." In 2010 35th IEEE Photovoltaic Specialists Conference (PVSC). IEEE, 2010. http://dx.doi.org/10.1109/pvsc.2010.5615985.

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Звіти організацій з теми "Compression of flexible roll"

1

Taussig, Carl, Richard E. Elder, Warren B. Jackson, Albert Jeans, Mehrban Jam, Ed Holland, Hao Luo, John Maltabes, Craig Perlov, and Steven Trovinger. Defect Analysis of Roll-to-Roll SAIL Manufactured Flexible Display Backplanes. Fort Belvoir, VA: Defense Technical Information Center, January 2011. http://dx.doi.org/10.21236/ada549450.

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2

Doeff, Marca. Flexible All Solid State Lithium Batteries Made by Roll-to-Roll Freeze-Casting. Office of Scientific and Technical Information (OSTI), July 2019. http://dx.doi.org/10.2172/1569485.

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3

Jain, K., T. J. Dunn, N. Farmiga, and M. Zemel. Roll-to-Roll, Projection Lithography System for High-Resolution Patterning of Flexible Substrates, Volume 1. Fort Belvoir, VA: Defense Technical Information Center, May 1999. http://dx.doi.org/10.21236/ada375710.

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4

Phoha, Shashi, and Mendel Schmiedekamp. Semantic Source Coding for Flexible Lossy Image Compression. Fort Belvoir, VA: Defense Technical Information Center, March 2007. http://dx.doi.org/10.21236/ada464658.

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5

Veley, Duane E., Narendra S. Khot, Jeffrey V. Zweber, and Alicia R. Hartong. Optimum Design of a Flexible Wing Structure to Enhance Roll Maneuver in Supersonic Flow. Fort Belvoir, VA: Defense Technical Information Center, January 2008. http://dx.doi.org/10.21236/ada478915.

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6

ENERGY DISSIPATING MODES AND DESIGN RECOMMENDATION OF H-SHAPED STEEL BAFFLES SUBJECTED TO BOULDER IMPACT. The Hong Kong Institute of Steel Construction, December 2021. http://dx.doi.org/10.18057/ijasc.2021.17.4.3.

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Flexible barriers are one of the most effective protective structures, which have been widely used for the mitigation of rockfalls. As the only compression members in a flexible barrier system, steel posts maintain the integrity of the interception structure to keep the function of the system. Due to the random trajectories of rockfalls, steel posts may be impacted by boulders directly. The impact scenario may result in the failure of the post and even the collapse of the system. In this paper, firstly, steel baffles were proposed to be an additional structural countermeasure to avoid the direct impact of posts. Secondly, numerical method was adopted to study the structural behaviour of steel baffles under direct boulder impact. Then, an available published experimental test of H-shaped steel beams under drop weight impact loading by others was back analyzed to calibrate the finite element model. Finally, numerical simulations were carried out to investigate the energy dissipating modes and energy dissipating efficiency of the H-shaped steel baffles. The simulation results show that there are three typical energy dissipating modes of H-shaped baffles subjected to boulder impact, namely flexural, local compression buckling and shear buckling. Local compression buckling is the most efficient energy dissipating mode. The thickness of the web of an H-shaped baffle is suggested to be 4 mm and 6 mm for the rated dissipating energy of 50 kJ and 100 kJ, respectively.
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