Academic literature on the topic 'Height-lateral law'

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Journal articles on the topic "Height-lateral law"

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Zhao, Yong Tao, and Yun An Hu. "Design of the Scheme Flight Trajectory Command for the Tactical Missile." Key Engineering Materials 480-481 (June 2011): 1426–31. http://dx.doi.org/10.4028/www.scientific.net/kem.480-481.1426.

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For the case of the scheme trajectory command design for the tactical missile, the longitudinal and lateral commands and the compound controller of the attitude and height were designed. In the launch segment, four kinds of heading angle commands were presented adopting the arc method and reduction law. In the variable height flight segment, two kinds of height commands were gained by using the parabolic and exponential function. Considering the earth curvature, the formula of the great circle course and distance was gotten applying spherical triangle solution method, and the flight command al
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Chen, Chao, and Jiali Tan. "Path Following for UAV using Nonlinear Model Predictive Control." Journal of Physics: Conference Series 2530, no. 1 (2023): 012021. http://dx.doi.org/10.1088/1742-6596/2530/1/012021.

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Abstract For the fixed-wing UAV control system, the lateral path-following system is an important part, which ensures that the UAV flies stably in accordance with the predetermined route within a certain height. For the lateral path following of UAV based on nonlinear model predictive control, the model of the lateral kinematics of the fixed-wing UAV is established first, and then the path-following problem of UAV at a constant height is considered. The objective function with constraints based on the NMPC is established, and finally the nonlinear optimization algorithm is used to minimize the
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Zheng, Guo Dong, and Huan Zhang. "Research on Gradient Law of Beam Height in Long-Span Continuous Rigid Frame Bridge." Advanced Materials Research 446-449 (January 2012): 1059–62. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.1059.

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Combined the design of a long-span continuous rigid frame bridge of a highway in Pearl River Delta of China and based on the longitudinal and lateral force characteristics of the large span, wide margin and wide box structure, the appropriate principles and methods to determine the index of the parabolic line is raised through analyzing and comparing the impact of the gradient law of the parabolic beam height of different index on structural forces.
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Purusatama, Byantara Darsan, Suk Woo Kim, and Nam Hun Kim. "A comparative study on quantitative anatomical characteristics of compression, lateral, and opposite woods in Agathis loranthifolia and Pinus merkusii." BioResources 19, no. 1 (2023): 925–43. http://dx.doi.org/10.15376/biores.19.1.925-943.

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Quantitative anatomical characteristics and their radial variation in compression (COW), lateral (LAW), and opposite (OPW) woods of Agathis loranthifolia and Pinus merkusii stem woods growing in Indonesia were observed and compared to understand wood quality. The length, diameter, wall thickness, and lumen diameter of tracheids and ray height and numbers were observed using optical microscopy. In both species, COW had the shortest tracheid length, smallest tracheid and lumen diameter, thickest cell wall, and highest ray numbers among the parts, while LAW and OPW showed comparable or variable v
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Qin, Wei, and Jialin Xu. "Horizontal Subzone Characteristics and Methane Seepage Properties of the Gas Flowing Fracture Zone above the Gob." Advances in Civil Engineering 2018 (August 1, 2018): 1–12. http://dx.doi.org/10.1155/2018/9071578.

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Gas flowing fracture zone (GFFZ) is an active zone in the gob where pressure-relieved methane can move freely. However, there are very few research findings on the horizontal development characteristics and internal methane seepage properties of GFFZs. In this paper, based on the development height of a GFFZ above the gob, the GFFZ was horizontally divided into the following: a lateral fracture subzone, an O-ring fracture subzone, and a compacted subzone. The identification criteria for all of these horizontal subzones were given by analyzing the influence of the stress in the coal rock mass o
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Zhang, Libo, Wenlong Shen, Xuelong Li, et al. "Abutment Pressure Distribution Law and Support Analysis of Super Large Mining Height Face." International Journal of Environmental Research and Public Health 20, no. 1 (2022): 227. http://dx.doi.org/10.3390/ijerph20010227.

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Under the condition of the shallow coal seam, the laws of roof activity after large mining height longwall face mining and prevention measures for large-area roof weighting are problems that need to be solved urgently. In the background of the super large mining height working face in the upper 108 working face of Jinjitan Coal Mine 12-2, the spatial distribution characteristics of the development and change of the mining-induced abutment pressure and the related support design in the 8.2 m super large mining height and fully mechanized mining face were conducted. It reveals the distribution c
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Hu, Jie, Shucai Li, Shaoshuai Shi, et al. "Experimental Study on Parameters Affecting the Runout Range of Rockfall." Advances in Civil Engineering 2018 (2018): 1–9. http://dx.doi.org/10.1155/2018/4739092.

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This paper presents the law of rockfall runout range and the effect on lateral dispersion caused by different parameters. A creative combined model test bench was developed as the test site, the slope, and blocks were artificial using similar materials that can meet the strength required in the experiment. As to the analysis of rockfall runout range, a series of experiments were carried out, and the shape, weight, and release heights of blocks were varied to clarify the effect of 3 factors. The motion trajectory of block was recorded based on a high-speed camera and a defined coordinate system
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Li, Xiao Jing, Wei Shen Zhu, and Wei Min Yang. "One Method of System Analysis Based on Some Parameters in the Underground Chambers and Application." Key Engineering Materials 353-358 (September 2007): 2517–20. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.2517.

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Based on the underground structure scheme of Langyashan hydro-electrical project, lots of elastic-plastic numerical analysis were conducted considering modulus of deformation, layout depth of underground opening, height of main factory premises, coefficient of lateral compressive stress, as the mainly mechanical parameters that influenced the stability analysis of underground openings. The mathematical statistics method was employed to investigate the displacement variation law of key point surrounding house periphery and found the forecast model. Then the forecast model was used to analyze th
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He, Jian, Dalin Wu, Jisheng Ma, Hongkai Wang, and Yuliang Yang. "The influence law of grouser shape on soil slide sinkage when tracked vehicle travels on soft road." Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics 234, no. 1 (2019): 225–37. http://dx.doi.org/10.1177/1464419319891324.

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The influence law of a tracked vehicle grouser shape on the soil slide sinkage was investigated in this study via the numerical simulations and physical tests. A finite element model was built using the plastic incremental theory and generalized Hokker’s law, while constitutive soil parameters were obtained via triaxial test. The numerical simulation model was verified by physical test results. Based on the verified numerical simulation model, the influence law of the tracked vehicle grouser shape on the soil slide sinkage was determined. The results show that (1) shear displacement in the lat
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Wang, Zai Qiang. "The Oil Accumulation Law of Putaohua Oil Layer in Taidongarea, Songliao Basin." Advanced Materials Research 868 (December 2013): 142–45. http://dx.doi.org/10.4028/www.scientific.net/amr.868.142.

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The research on Putaohua oil layer in Taidong,Songliao Basin using core,logging and seisimic information shows that oil is divided into belts from east to west influenced by faults striking from south to north and oil potential is getting poorer from east to west, oil is mainly distributed in the middle of Putaohua oil layer showing double peaks, and the main reservoir type is fault-lithology reservoir formd by NStrending faults and NW trending channel sandbody on the slope dipping to the southeast. According to the match type between fault and sandbody in single trap ,we draw the accumulation
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Book chapters on the topic "Height-lateral law"

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Doveton, John H. "Saturation-Height Functions." In Principles of Mathematical Petrophysics. Oxford University Press, 2014. http://dx.doi.org/10.1093/oso/9780199978045.003.0012.

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As observed by Worthington (2002), “The application of saturation-height functions forms part of the intersection of geologic, petrophysical, and reservoir engineering practices within integrated reservoir description.” It is also a critical reference point for mathematical petrophysics; the consequences of deterministic and statistical prediction models are finally evaluated in terms of how closely the estimates conform to physical laws. Saturations within a reservoir are controlled by buoyancy pressure applied to pore-throat size distributions and pore-body storage capacities within a rock u
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Conference papers on the topic "Height-lateral law"

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Ramasamy, Manikandan, Mark Potsdam, and Gloria Yamauchi. "Measurements to Understand the Flow Mechanisms Contributing to Tandem-Rotor Outwash." In Vertical Flight Society 71st Annual Forum & Technology Display. The Vertical Flight Society, 2015. http://dx.doi.org/10.4050/f-0071-2015-10100.

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Downwash and outwash characteristics of a model-scale tandem-rotor system in the presence of the ground were analyzed by identifying and understanding the physical mechanisms contributing to the observed flow field behavior. A building block approach was followed in simplifying the problem, separating the effects of the fuselage, effects of one rotor on the other, etc. Flow field velocities were acquired in a vertical plane at four aircraft azimuths of a small-scale tandem rotor system using the particle image velocimetry (PIV) technique for radial distances up to 4 times the rotor diameter. R
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Otremba, Frank, and José A. Romero Navarrete. "Assessing Rail Damage in Turns due to Lateral Load Transfer." In ASME 2024 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2024. https://doi.org/10.1115/imece2024-137425.

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Abstract A testing procedure is proposed and used, to estimate the rail damage potentials of variations in both, the height of the cargo’s center of gravity and the railway car suspension’s spring constant. The experimental setup consisted of a tilt table that slowly exerted an increasing lateral acceleration on a two-axle bogie-type vehicle equipped with a spring supported container. The potential damaging effect derived from the resulting lateral load transfer, was assessed on the basis of the fourth-power law. Results suggest that the cargo having a higher center of gravity could be more da
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Han, Y., and H. S. Tzou. "Nano-and Micro-Actuations of Hard Disk’s Head Positioning System: Precision Control and Evaluation." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14736.

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A new piezoelectric micro-actuator with 2-dimensional control, i.e., a track following control and a flying height control, of the head positioning system for high-density hard disk drives (HDD) was previously developed in our lab. In this study, control algorithms for the new 2-degree-of freedom (DOF) micro-actuator are developed to independently control the lateral displacement and the transverse deflection to against various disturbances and system uncertainties. The structure of the piezoelectric micro-actuator is reviewed briefly. Then, the overall control strategy for the micro-actuator
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Omerović, Kenan, Mario Uroš, Senad Medić, and Zijadin Guri. "ENGINEERING ANALYSIS OF A TYPICAL PRE-CODE URM BUILDING IN ZAGREB." In 3rd Croatian Conference on Earthquake Engineering. University of Zagreb Faculty of Civil Engineering, 2025. https://doi.org/10.5592/co/3crocee.2025.135.

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This paper evaluates the seismic resistance and vulnerability of an existing unreinforced masonry (URM) building in Zagreb's Folnegovićevo neighborhood. The building with potentially low seismic resistance was erected in the 60s, a period characterized by the introduction of the first seismic code in practice. It has a rectangular plan 36.9 m x 10.7 m and consists of a basement, a ground floor and four floors totaling 17 m in height. The solid brick walls with variable thickness are evenly distributed in both directions and they run continuously from the foundation to the top. The reinforced c
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Doddi, Sai K., R. Murthy Kalluri, and Prosenjit Bagchi. "Direct Numerical Simulation of 1000 Deformable Capsules in a Channel Flow at Finite Inertia." In ASME 2008 Fluids Engineering Division Summer Meeting collocated with the Heat Transfer, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/fedsm2008-55104.

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Three-dimensional numerical simulations are presented on the motion of large ensembles of deformable particles (up to 1096 in number) in a channel flow in presence of inertia. Particles are modeled as capsules, that is, liquid drops surrounded by hyperelastic membranes. Unlike liquid drops where the fluid-fluid interface is characterized by isotropic surface tension, that of a capsule is governed by more complex constitutive laws. Here we assume that the membrane follows the neo-Hookean constitutive law. The particle Reynolds number, based on the centerline velocity of the undisturbed flow, th
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Wang, Alan L. T., and John F. Stubington. "Hydrodynamic Performance of a Novel Design of Pressurized Fluidized Bed Combustor." In 17th International Conference on Fluidized Bed Combustion. ASMEDC, 2003. http://dx.doi.org/10.1115/fbc2003-057.

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A bench-scale fluidized bed combustor with a novel fluidizing gas injection manifold was successfully built for characterization of Australian black coals under pressurized fluidized bed combustion (PFBC) conditions. The bed of silica sand (mean size 1.3 mm and density 2700 kg/m3) was 40 mm ID with a static height of 75 mm. This facility was designed to operate at 1.6 MPa, 850°C and a fluidizing velocity of 0.9 m/s, identical to those used industrially, in order to match as closely as possible the local hydrodynamic environment around each coal particle in an industrial PFBC. To verify satisfa
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McNesby, Kevin L., and Robert A. Fifer. "Tomographic analysis of line of sight spectra of low pressure burner flames." In OSA Annual Meeting. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oam.1992.tugg2.

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Computed tomography is used to obtain species profiles within a low pressure premixed CH4/N2O flame as a function of height above the burner surface and lateral position at that height. This information is extracted from parallel line of sight absorbance data by using Abel inversion. This process yields two dimensional slices of the flame. At any point within each slice the infrared spectrum of the species present may be obtained. Abel inversion may be applied only to systems possessing axial symmetry. Species profiles for inverted and normal line of sight absorbance spectra are compared and c
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AL-AHDAL, Abdulelah. "Cyclic performance of partially grouted reinforced masonry shear walls with boundary elements." In Civil and Environmental Engineering for Resilient, Smart and Sustainable Solutions. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903414-15.

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Abstract. Partially Grouted Reinforced Masonry Shear Walls (PG-RMSWs) have been used as structural elements to carry both gravity and lateral loads. However, national codes (ex. CSA) limited their use for only low-rise buildings (with a maximum aspect ratio of two) and in low-seismic regions. This study examines the in-plane behaviour of Partially Grouted Reinforced Masonry (PG-RM) shear walls, focusing on a half-scale slender wall representing 6-storey buildings. Subjected to constant axial load and quasi-static reversed cyclic loading, the wall was tested until failure, with reversed cyclic
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Sasamori, Monami, Kaoru Iwamoto, and Akira Murata. "Experimental Study on Drag-Reduction Effect of a New Sinusoidal Riblet." In ASME 2012 Fluids Engineering Division Summer Meeting collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/fedsm2012-72437.

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An experimental study of a new three-dimensional (3-D) riblet has been carried out. The lateral spacing of our 3-D riblet surface is sinusoidally varied in the streamwise direction (see Fig. 3). In the comparison of the optimal two-dimensional (2-D) blade riblet which shows 9.9% drag reduction rate [1], the riblet height, thickness and averaged lateral spacing are respectively 0.83, 5 and 2.5 times larger than those of the optimal 2-D riblet in wall units. The net drag reduction rate of 11.7% has been confirmed in a low-speed wind channel at the bulk Reynolds number of 3400. The flow structure
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Nasiri Sarvi, Masoud, and Yunhua Luo. "Development of an Image-Based Biomechanical Model for Assessment of Hip Fracture Risk." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-47878.

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Low-trauma hip fracture, usually caused by fall from standing height, has become a main source of morbidity and mortality for the elderly. Factors affecting hip fracture include sex, race, age, body weight, height, body mass distribution, etc., and thus, hip fracture risk in fall differs widely from subject to subject. It is therefore necessary to develop a subject-specific biomechanical model to predict hip fracture risk. The objective of this study is to develop a two-level, image-based, subject-specific biomechanical model consisting of a whole-body dynamics model and a proximal-femur finit
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