Relevant bibliographies by topics / Beam characteristics

Contents

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

Academic literature on the topic 'Beam characteristics'

Author: Grafiati
Published: 10 March 2023
Last updated: 11 March 2023

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Journal articles on the topic "Beam characteristics"

1

HUANG, C. W., and Y. H. SU. "DYNAMIC CHARACTERISTICS OF PARTIAL COMPOSITE BEAMS." International Journal of Structural Stability and Dynamics 08, no. 04 (2008): 665–85. http://dx.doi.org/10.1142/s0219455408002946.

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This paper is concerned with the dynamic characteristics of composite beams with partial shear connections. The governing equations of motion for partial composite beams are derived from the one-dimensional partial composite beam theory. By solving the corresponding characteristic equation, the natural frequencies and modal shapes for simple partial composite beams are obtained. The orthogonality condition between the natural modes is utilized to decouple the equations of motion. Closed-form solution for the simple partial composite beam subjected to a moving load is derived by the modal super
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Rahman, M. A., M. Jahangir Alam, and M. Akhtaruzzaman. "Characteristics Analysis of High Energy External Radiotherapy Beams in Water." Malaysian Journal of Medical and Biological Research 5, no. 1 (2018): 51–60. http://dx.doi.org/10.18034/mjmbr.v5i1.450.

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High energy external radiotherapy beam is being used widely for cancer treatment. Biological effect of radiation is concerned with the evaluation of energy absorbed in the tissue. The study of photon and electron beam characteristics is necessary before calibration machine. The aim of this study was to analysis characteristics of depth dose of different energy beams in water to enhance the quality of the radiotherapy treatment planning. Beam is attenuated by the medium and the transmitted beam with less intensity causes lesser absorbed dose as the depth increases. Relative attenuation on certa
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Chen, Y. H., and J. T. Sheu. "Dynamic Characteristics of Layered Beam with Flexible Core." Journal of Vibration and Acoustics 116, no. 3 (1994): 350–56. http://dx.doi.org/10.1115/1.2930435.

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This paper presents an analytical theory to define the dynamic characteristics of a layered beam which is composed of two parallel beams of uniform properties with a flexible core in-between. This flexible core may be made of a kind of viscoelastic material in order to achieve a high shock-absorbing performance. The dynamic interactions between these two parallel beams are especially studied. The dynamic shape functions and the dynamic stiffness matrix of a layered-beam element are established based on the analytical model of two parallel damped Timoshenko beams, connected to each other by the
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Awtar, Shorya, Alexander H. Slocum, and Edip Sevincer. "Characteristics of Beam-Based Flexure Modules." Journal of Mechanical Design 129, no. 6 (2006): 625–39. http://dx.doi.org/10.1115/1.2717231.

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The beam flexure is an important constraint element in flexure mechanism design. Nonlinearities arising from the force equilibrium conditions in a beam significantly affect its properties as a constraint element. Consequently, beam-based flexure mechanisms suffer from performance tradeoffs in terms of motion range, accuracy and stiffness, while benefiting from elastic averaging. This paper presents simple yet accurate approximations that capture the effects of load-stiffening and elastokinematic nonlinearities in beams. A general analytical framework is developed that enables a designer to par
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Xie, Yanchen, Xizheng Ke, Ke Dong, Jingyuan Liang, and Wenbo Fan. "Analysis on the characteristics of vortex beam in field turbulence." Laser Physics 32, no. 10 (2022): 105402. http://dx.doi.org/10.1088/1555-6611/ac8fe6.

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Abstract In this study, we have investigated the propagation characteristics of single-mode Laguerre–Gaussian (LG) beams under field atmospheric turbulence conditions. We constructed a 1200 meter experimental platform for representing vortex beams in the field. Accordingly, we analyzed the spot changes in an LG beam after transmitted through atmospheric turbulence. Based on the principle of Fresnel diffraction and the random phase screen method, we studied the evolution and spiral spectrum distribution of low-order LG beams transmitted by atmospheric turbulence by numerical simulation. Moreove
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Li Binzhong, 李宾中, and 吕百达 Lü Baida. "Beam Combination Characteristics of Partially Coherent Beams." Chinese Journal of Lasers 36, no. 9 (2009): 2337–40. http://dx.doi.org/10.3788/cjl20093609.2337.

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Carey, W. M., and N. Yen. "Beam Noise Characteristics." IEEE Journal of Oceanic Engineering 30, no. 2 (2005): 303–11. http://dx.doi.org/10.1109/joe.2004.841393.

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Mijnheer, B. J., L. J. Goodman, E. J. Hall, et al. "4. Beam Characteristics." Reports of the International Commission on Radiation Units and Measurements os-23, no. 2 (1989): 40–51. http://dx.doi.org/10.1093/jicru_os23.2.40.

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Mijnheer, B. J., L. J. Goodman, E. J. Hall, et al. "4. Beam Characteristics." Journal of the International Commission on Radiation Units and Measurements os23, no. 2 (1989): 40–51. http://dx.doi.org/10.1093/jicru/os23.2.40.

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XIE, Hao, Xiaotong SUN, Yanqing MEN, Yongliang HUANG, and Yuxin CAO. "Study on failure mechanism of reinforced concrete beam based on cohesive zone model." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 40, no. 1 (2022): 175–81. http://dx.doi.org/10.1051/jnwpu/20224010175.

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The problem of crack propagation in reinforced concrete beams is common in practical engineering. It is very important to correctly describe the law of crack propagation, the mechanism of fracture failure and the internal stress and deformation characteristics of the beams. Based on cohesive zone mode, the mechanical mechanism of fracture failure of 3D reinforced concrete beams under external load is studied in this paper. By comparing the numerical simulation with the experimental results of the reinforced concrete beam, the crack distribution, expansion law and failure mode of the reinforced
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Dissertations / Theses on the topic "Beam characteristics"

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Bor, Sheau-Shong. "Phase conjugation characteristics of Gaussian beam /." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487262825076392.

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Mourka, Areti. "Probing the modal characteristics of novel beam shapes." Thesis, University of St Andrews, 2014. http://hdl.handle.net/10023/4287.

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In this thesis, an investigation into the modal characteristics of novel beam shapes is presented. Sculpting the phase profile of a Gaussian beam can result in the generation of a beam with unique properties. Described in this thesis are Laguerre-Gaussian (LG), Hermite-Gaussian (HG) and Bessel beams (BBs). The diffraction of LG beam modes from a triangular aperture is explored and this effect can be used for the efficient measurement of the azimuthal mode index l that indicates the number of multiples of 2π of phase changes that the field displays around one circumference of the optical axis.
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Leong, Mun-Foo. "MOMENT-ROTATION CHARACTERISTICS OF BEAM-TO-COLUMN CONNECTIONS." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275028.

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Salzmann, Angela, and n/a. "Damping Characteristics of Reinforced and Prestressed Normal- and High-Strength Concrete Beams." Griffith University. School of Engineering, 2003. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20040430.133844.

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In the last few decades there has been a significant increase in the design strength and performance of different building materials. In particular, new methods, materials and admixtures for the production of concrete have allowed for strengths as high as 100 MPa to be readily available. In addition, the standard manufactured yield strength of reinforcing steel in Australia has increased from 400 MPa to 500 MPa. A perceived design advantage of higher-strength materials is that structural elements can have longer spans and be more slender than previously possible. An emerging problem with
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Salzmann, Angela. "Damping Characteristics of Reinforced and Prestressed Normal- and High-Strength Concrete Beams." Thesis, Griffith University, 2003. http://hdl.handle.net/10072/366888.

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In the last few decades there has been a significant increase in the design strength and performance of different building materials. In particular, new methods, materials and admixtures for the production of concrete have allowed for strengths as high as 100 MPa to be readily available. In addition, the standard manufactured yield strength of reinforcing steel in Australia has increased from 400 MPa to 500 MPa. A perceived design advantage of higher-strength materials is that structural elements can have longer spans and be more slender than previously possible. An emerging problem with
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Jackson, Rahsean LaNaul. "Vibration and Flexural Strength Characteristics of Composite Castellated Beams." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/31242.

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With the development of lightweight concrete and design optimizations, floor vibration problems are becoming a serious serviceability problem. The castellated beam is a prime example and was the focus of this study. The vibration and flexural strength performance were verified in this paper. <p> The vibration characteristics of castellated beams were examined using experimental and analytical test methods. The effective moment of inertia is essential to accurately predict the frequency and deflection of a floor system due to human occupancy. Since castellated beams have non-prismatic cross-se
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Ribton, Colin Nigel. "Development of an electron gun design optimisation methodology." Thesis, Brunel University, 2017. http://bura.brunel.ac.uk/handle/2438/15629.

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The design of high quality electron generators to meet specific requirements is important in the application of these devices to a variety of materials processing systems (including welding, cutting and additive manufacture), X-ray tubes for medical, scientific and industrial applications, microscopy and lithography. Designs can be analysed by field solvers, and electron trajectories plotted to provide an indication of the beam quality. Incremental improvement of designs has normally been executed by trial and error, and this can be a time consuming activity requiring expert intervention for e
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French, Vandy. "Moment - Rotation characteristics of boltedc beam - to - column aluminium connections." Master's thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/5046.

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Structural aluminum provides a unique option to engineers by virtue of both its unique strength to weight ratio and its well known corrosion resistance properties. The development of the Eurocode 9 provides an insight to the design of aluminum structures based on results from various researchers worldwide. However the area of connections remains very sparse with regards to research material as compared to steel as provided by Eurocode 3 part 1-8. This work involves the analysis of the performance of aluminum end plate beam column connections with regards moment rotation behavior as well as the
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Hochanadel, Joris Erich. "Effect of Beam Characteristics and Process Parameters on the Penetration and Microstructure of Laser and Electron Beam Welds in Stainless Steel and Titanium." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu160503470688313.

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Flampouri, Styliani. "Optimisation of megavoltage beam and detector characteristics for portal imaging in radiotherapy." Thesis, Institute of Cancer Research (University Of London), 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.408859.

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Books on the topic "Beam characteristics"

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E, Sherstobitov Vladimir, and Soms L. N, eds. Control of laser beam characteristics and nonlinear methods for wavefront control: Laser Optics 2000 : 26-30 June, 2000, St. Petersburg, Russia. SPIE, 2001.

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Townsend, John S. Dynamic characteristics of a vibrating beam with periodic variation in bending stiffness. National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1987.

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BEAM--Building European Identity Through Spirit, Sense and Meaning. Schneider Verlag Hohengehren GmbH, 2013.

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Schroeder, Dana L. Ferruleless coupled-cavity traveling-wave tube cold-test characteristics simulated with micro-SOS. Lewis Research Center, 1993.

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United States. National Aeronautics and Space Administration. Scientific and Technical Information Program., ed. Ferruleless coupled-cavity traveling-wave tube cold-test characteristics simulated with micro-SOS. National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, 1993.

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United States. National Aeronautics and Space Administration. Scientific and Technical Information Program., ed. Ferruleless coupled-cavity traveling-wave tube cold-test characteristics simulated with micro-SOS. National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, 1993.

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United States. National Aeronautics and Space Administration. Scientific and Technical Information Program., ed. Ferruleless coupled-cavity traveling-wave tube cold-test characteristics simulated with micro-SOS. National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, 1993.

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Pyatakhin, M. V. Spatiotemporal characteristics of laser emission. Nova Science Pub., 1994.

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Marseille, Jacques. C'est beau la France: Pour en finir avec le masochisme français. Plon, 1993.

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Outlaw, George S. Flood-frequency and detention-storage characteristics of Bear Branch watershed, Murfreesboro, Tennessee. U.S. Dept. of the Interior, U.S. Geological Survey, 1996.

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Book chapters on the topic "Beam characteristics"

1

Takei, Hideyuki. "Physical Characteristics of Proton Beams." In Proton Beam Radiotherapy. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-13-7454-8_4.

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Herman, Marian A., and Helmut Sitter. "Material-Related Growth Characteristics in MBE." In Molecular Beam Epitaxy. Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80060-3_7.

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Herman, Marian A., and Helmut Sitter. "Material-Related Growth Characteristics in MBE." In Molecular Beam Epitaxy. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-97098-6_7.

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Aichinger, Horst, Joachim Dierker, Sigrid Joite-Barfuß, and Manfred Säbel. "Characteristics of the Primary Radiation Beam." In Radiation Exposure and Image Quality in X-Ray Diagnostic Radiology. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11241-6_15.

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Haas, Olivier Cyrille Louis. "Beam Characteristics and Preliminary Modelling Considerations." In Radiotherapy Treatment Planning. Springer London, 1999. http://dx.doi.org/10.1007/978-1-4471-0821-4_2.

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Aichinger, Horst, Joachim Dierker, Sigrid Joite-Barfuß, and Manfred Säbel. "Characteristics of the Primary Radiation Beam." In Radiation Exposure and Image Quality in X-Ray Diagnostic Radiology. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-09654-3_14.

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Wood, Colin E. C. "Dopant Incorporation, Characteristics, and Behavior." In The Technology and Physics of Molecular Beam Epitaxy. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4899-5364-3_4.

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Wood, Colin E. C. "Molecular Beam Epitaxial Iii–V Compounds: Dopant Incorporation, Characteristics And Behavior*." In Molecular Beam Epitaxy and Heterostructures. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5073-3_5.

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Xu, Zhi-wei, Li-xia Lin, Nan-hong Ding, and Lei Chen. "The External Prestress Effect of Curved Tendons on the Natural Vibration Characteristics of Steel Beams." In Advances in Frontier Research on Engineering Structures. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8657-4_46.

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AbstractIn order to explore the external prestress effect of the curved tendons on the stiffness and natural vibration characteristics of the steel beam, this paper deduced the calculation equation of the natural frequency on the external prestressed simply supported steel beam of the curved arrangement, which was based on the Hamilton principle. The natural frequency is calculated by combining the example of I-shaped simply supported steel beam, which was analyzed and verified by establishing the finite element model. The results show that: the calculation of the equation is well demonstrated by the finite element results, and the validity of model equation was verified. When the applied prestress increases, the natural vibration frequency decreases and the change range is not large, which indicates that the magnitude of the prestress has little effect on the natural frequency of simply supported steel beams.
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Engemann, J., G. Fedosenko, V. Raiko, and D. Theirich. "Field Emission Characteristics of Thin MPCVD Diamond Films." In Advanced Technologies Based on Wave and Beam Generated Plasmas. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-0633-9_25.

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Conference papers on the topic "Beam characteristics"

1

Harrison, Justin, Darryl Naidoo, and Andrew Forbes. "Determination of amplification characteristics in end-pumped solid-state amplifiers." In Laser Beam Shaping XXI, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2021. http://dx.doi.org/10.1117/12.2595121.

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Uhlmann, M., J. S. Tanner, and G. Albarel. "Design characteristics of the AMSAR airborne phased array antenna." In IEE Colloquium Electronic Beam Steering. IEE, 1998. http://dx.doi.org/10.1049/ic:19980870.

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O'Dea, Brendan, Roger L. Farrow, Brian Victor, et al. "Variable beam high power fiber laser with optimized beam characteristics for metal cutting." In Laser Beam Shaping XIX, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2019. http://dx.doi.org/10.1117/12.2528809.

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Eppich, B., and H. Weber. "Beam Quality Characteristics of Solid State Lasers." In The European Conference on Lasers and Electro-Optics. Optica Publishing Group, 1998. http://dx.doi.org/10.1364/cleo_europe.1998.cwi2.

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The output of high average power lasers, especially solid state lasers, constists of many coherent modes, fluctuating in time and space. Easily to detect is only the time averaged intensity J(x,y) = &lt;E(x,y) E*(x,y)&gt;. With knowlodge of J(x,y) alone it is not possible to predict the propagation of such beams. On the other hand for beam transportation and beam application at least the transverse beam diameter is required. In a first approach the diameter and its propagation through ABCD-optics can be calculated from the 10 second order moments of the beam But for all technical applications
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Isarie, Claudiu, and Ilie Isarie. "High-power laser-beam characteristics." In Lasers and Applications in Science and Engineering, edited by Alexis V. Kudryashov. SPIE, 2004. http://dx.doi.org/10.1117/12.529464.

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BAIER, V. N., and V. M. KATKOV. "INTEGRAL CHARACTERISTICS OF BREMSSTRAHLUNG AND PAIR PHOTOPRODUCTION IN A MEDIUM." In 18th Advanced ICFA Beam Dynamics Workshop. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812777447_0034.

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Zhao, Yanzhong, Congmiao Shan, Yonghui Zheng, Laixian Zhang, and Huayan Sun. "Analytical beam-width characteristics of distorted cat-eye reflected beam." In International Symposium on Precision Engineering Measurement and Instrumentation, edited by Junning Cui, Jiubin Tan, and Xianfang Wen. SPIE, 2015. http://dx.doi.org/10.1117/12.2181205.

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Sun, Chuang, Licheng Sun, Yamin Zheng, Shibing Lin, and Huang Lei. "Research on the characteristics, mechanism, and compensation method of the temperature-induced surface distortion of deformable mirrors." In Laser Beam Shaping XIX, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2019. http://dx.doi.org/10.1117/12.2525360.

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Shibue, Hideaki, and Devesh Srivastava. "Elastokinematic Characteristics of Torsion Beam Suspensions." In SAE 2015 World Congress & Exhibition. SAE International, 2015. http://dx.doi.org/10.4271/2015-01-1497.

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"Propagation characteristics of premodulated electron beam." In 10th International Conference on Vacuum Microelectronics. IEEE, 1997. http://dx.doi.org/10.1109/ivmc.1997.627413.

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Reports on the topic "Beam characteristics"

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Vixie, K. R., and G. L. Sandine. Brookhaven National Laboratory (BNL) Proton Beam Characteristics and Dynamics: A First Look. Office of Scientific and Technical Information (OSTI), 2000. http://dx.doi.org/10.2172/775868.

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Chang, J. J., C. D. Boley, W. A. Molander, B. E. Warner, and M. W. Martinez. Beam characteristics of a large-bore copper laser with a radiatively cooled plasma. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10167204.

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Jerng, D. W., and J. M. Carpenter. Heat generation and neutron beam characteristics in a high power pulsed spallation neutron source. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/396586.

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Chung, H. M., J. H. Park, J. Gazda, and D. L. Smith. Microstructural characteristics and mechanism of toughness improvement of laser and electron-beam welds of V-4Cr-4Ti following postwelding heat-treatment. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/415826.

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Alchanatis, Victor, Stephen W. Searcy, Moshe Meron, W. Lee, G. Y. Li, and A. Ben Porath. Prediction of Nitrogen Stress Using Reflectance Techniques. United States Department of Agriculture, 2001. http://dx.doi.org/10.32747/2001.7580664.bard.

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Commercial agriculture has come under increasing pressure to reduce nitrogen fertilizer inputs in order to minimize potential nonpoint source pollution of ground and surface waters. This has resulted in increased interest in site specific fertilizer management. One way to solve pollution problems would be to determine crop nutrient needs in real time, using remote detection, and regulating fertilizer dispensed by an applicator. By detecting actual plant needs, only the additional nitrogen necessary to optimize production would be supplied. This research aimed to develop techniques for real tim
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Zarillo, Gary, Sara Ramos, Kristopher Effinger, et al. Evaluating cross-shore sediment grain size distribution, sediment transport, and morphological evolution of a nearshore berm at Fort Myers Beach, Florida. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/43780.

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Navigation channels are periodically dredged to maintain safe depths. Dredged sediment was historically placed in upland management areas or in offshore disposal areas. Florida state law prohibits placement of beach fill sediment that contains more than 10% by weight of silt and clay, which is typically a characteristic of dredged material. An alternative is placement in a nearshore berm. Some potential benefits of nearshore berms include wave energy dissipation, reduced cost of dredging and shore protection, and possible onshore movement of the berm material. This study considers sediment dis
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Einfeld, W. Glass bead size and morphology characteristics in support of Crystal Mist field experiments. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/41392.

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Thomas, M. D. Magnetic and gravity characteristics of the Thelon and Taltson orogens, northern Canada: tectonic implications. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329250.

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Differences of opinion concerning the relationship between the Thelon tectonic zone and the Taltson magmatic zone, as to whether they are individual tectonic elements or two independent elements, have generated various plate tectonic models explaining their creation. Magnetic and gravity signatures indicate that they are separate entities and that the Thelon tectonic zone and the Great Slave Lake shear zone form a single element. Adopting the single-element concept and available age dates, a temporally evolving plate tectonic model of Slave-Rae interaction is presented. At 2350 Ma, an Archean
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Shumway, Dean A., Kimberly S. Corbin, Magdoleen H. Farah, et al. Partial Breast Irradiation for Breast Cancer. Agency for Healthcare Research and Quality (AHRQ), 2023. http://dx.doi.org/10.23970/ahrqepccer259.

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Objectives. To evaluate the comparative effectiveness and harms of partial breast irradiation (PBI) compared with whole breast irradiation (WBI) for early-stage breast cancer, and how differences in effectiveness and harms may be influenced by patient, tumor, and treatment factors, including treatment modality, target volume, dose, and fractionation. We also evaluated the relative financial toxicity of PBI versus WBI. Data sources. MEDLINE®, Embase®, Cochrane Central Registrar of Controlled Trials, Cochrane Database of Systematic Reviews, Scopus, and various grey literature sources from databa
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Journeay, M., J. Z. K. Yip, C. L. Wagner, P. LeSueur, and T. Hobbs. Social vulnerability to natural hazards in Canada. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330295.

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While we are exposed to the physical effects of natural hazard processes, certain groups within a community often bear a disproportionate share of the negative consequences when a disaster strikes. This study addresses questions of why some places and population groups in Canada are more vulnerable to natural hazard processes than others, who is most likely to bear the greatest burden of risk within a given community or region, and what are the underlying factors that disproportionally affect the capacities of individuals and groups to withstand, cope with, and recover from the impacts and dow
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