Reduction of degrees of Freedom in three-dimensional ANCF beam of 24-DOF beam element by component mode synthesis by Kosuke KADOKURA, Nobuyuki KOBAYASHI

“…In examples of the pure torsional deformation and the free-fall behavior under the gravity field, the presented method was verified to be capable of expressing the torsional deformation and large deformation precisely as well as the conventional ANCF, in spite of the dof of the presented method being reduced to be the half of the conventional ANCF. …”
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Wake flow visualization of a dandelion pappus with posture change by Yuki SHIGENAGA, Hiroaki HASEGAWA

“…The falling speed of the pappus is reliant on the posture during free-fall motion, and the aerodynamic features of the pappus are substantially affected by the posture in flight. …”
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A rational method to evaluate tornado-borne missile speed in nuclear power plants (Validation of a numerical code based on Fujita's tornado model) by Yuzuru EGUCHI, Soichiro SUGIMOTO, Yasuo HATTORI, Hiromaru HIRAKUCHI

“…In this study, especially, the code is verified for one- and two-dimensional free-fall problems as well as a case of 1957 Dallas tornado wind field model, whose solutions are theoretically or numerically known. …”
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Effect of Integrating Metal Wire Mesh with Spray Injection for Liquid Piston Gas Compression by Barah Ahn, Vikram C. Patil, Paul I. Ro

“…Reynolds number of a free-falling droplet can be more than 1000 times that of a stationary droplet, which results in 3.95 to 4.22 times differences in heat transfer coefficients.…”
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Design, manufacture with additive technologies and research of inertia sensors by Reymon Iljušin, Eugenijus Jurkonis

“…The critical drop heights of the 3D inertial sensors were determined using a designed free fall stand. The results of experimental and computational stresses were compared. …”
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FLOW ENGINEERING TO REMEDIATE CONTAMINATED WATER QUALITY DUE TO DOMESTIC WASTE DISPOSAL IN BELIK RIVER, YOGYAKARTA by Slamet Suprayogi, Aulia Nur Fitriyani, Venny Vivid Fadhilah

“…The flow engineering is in the form of a small weir or pile of stones aiming to elevate the upstream water level and create a free fall or plunge that aerates the overflowing water. …”
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Stationar spherical-symmetric configuration of dark matter by M. Abishev, N. Beissen, B. Karsimanov, I. Uspanov, M. O. Alimkulova

“… The article is devoted to the consideration of a model problem, where mass flow of dark matter which take as only gravitational interacting spherical continuous medium without pressure and with radial opposite motion with equilibrium ascending and descending components, starting free fall from boundary of the sphere and passing through the center, stopping and fall back at the boundary of the spherical mass distribution, which give us stationary spherical-symmetric configuration of dark matter. …”
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Ready to detect a reversal of time's arrow: a psychophysical study using short video clips in daily scenes by Nao Hanyu, Kei Watanabe, Shigeru Kitazawa

“…However, the reaction became paradoxically faster and more synchronous for the detection of reversal in some critical occasions such as forward motion, free fall, diffusion, division and addition of materials by hand. …”
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Numerical Model Study of Prototype Drop Tests on Cube and Cubipod^® Concrete Armor Units Using the Combined Finite–Discrete Element Method by Giulio Scaravaglione, John-Paul Latham, Jiansheng Xiang

“…A numerical modeling methodology is developed to reproduce the results of an experimental examination published by Medina et al. (2011) of a free-fall drop test performed on a 15 t conventional Cubic block and a 16 t Cubipod^® unit. …”
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Experimental Study on Structural Behaviour of Steel Wire Mesh under Impact Loading by Sugimoto Masakazu, Koizumi Kanako, Arita Takeshi, Horiguchi Toshiyuki

“…In view of application to debris flow/rockfall barrier system, several types of steel wire mesh were selected to verify their basic behaviour under impact load of free fall weight at the controlled testing environment at an in-house testing facility capable of dropping a heavy weight on approximately 1-meter square panel made of such steel wire mesh material. …”
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Validating ground-based aerodynamic levitation surface tension measurements through a study on Al2O3 by Yifan Sun, Guangtao Duan, Akifumi Yamaji, Tomoya Takatani, Hiroaki Muta, Yuji Ohishi

“…The drop-bounce method simulates microgravity by allowing the sample to free-fall over a period of tens of milliseconds. Based on the results of this comparison, we determined that the surface tension of molten materials measured with ground-based ADL with the oscillating drop method, calculated using the resonant frequency of the l=2 m=0 mode, only shows a small deviation from that obtained under microgravity.…”
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Impact Dynamics Analysis of Mobile Mechanical Systems by Sorin Dumitru, Andra Constantin, Cristian Copilusi, Nicolae Dumitru

“…Thus, the impact phenomenon was analyzed in two cases, the first one consisting of a two bodies, namely, a free-fall body brought in contact with the other considered fixed in space and the second case, which is a complex one, when the analyzed bodies are components of a multi-body mechanical system. …”
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An Experimental and Numerical Study for Discrete Element Model Parameters Calibration: Gluten Pellets by Zongyou Ben, Xubo Zhang, Duoxing Yang, Kunjie Chen

“…Meanwhile, the feasibility of applying the interaction parameters of the multi-spheres autofill model to the bonded particle model was verified through the free fall test, the inclined plane sliding test, and the inclined plane tumbling time test. …”
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Numerical investigation of small fish accelerating impulsively to terminal speed by Yoichi OGATA, Takayuki AZAMA, Yuji MORIYAMA

“…It is also found that the time variations of inline swimming speed of a small fish and the fluid force acting on it can be estimated using a free-fall model, and the fluid force can be expressed by a linear function of the fish speed. …”
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Fuel–Coolant Interaction Visualization Test for In-Vessel Corium Retention External Reactor Vessel Cooling (IVR-ERVC) Condition by Young Su Na, Seong-Ho Hong, Jin Ho Song, Seong-Wan Hong

“…To experimentally simulate the In-Vessel corium Retention (IVR)- External Reactor Vessel Cooling (ERVC) conditions, prototypic corium was released directly into the coolant water without a free fall in a gas phase before making contact with the coolant. …”
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Impact force measurement in Shirodhara by Swathika Meenraj, Lakshmana Rao Chebolu, Balasubramanian Venkatesh

“…The process involves impact on the forehead by a free fall of a continuous stream of temperature controlled fluid. …”
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Mid-infrared polarization studies of SgrA: a three-dimensional study of the central parsec by Aitken, D, Smith, C, Moore, T, Roche, P

“…This partial reconstruction is compared with the H92α observations of Roberts et al. and the implications are that the northern arm and east - west bar do not define either an orbital path or a spiral arm but rather represent a tidally stretched structure in free fall about SgrA(Black star) with significant deviations from a single plane, and most likely represent the inner ionized rim of a more extended neutral cloud.…”

DETERMINING THE TECHNICAL STANDARDS OF PING PONG TABLE BY USING CLOSE RANGE PHOTOGRAMMETRY by U. Acar, B. Bayram, H. I. Cetin, F. B. Sanlı

“…Average bouncing height that is required by federation standards is minimum 23 cm for free falling table tennis ball from 30 cm. <br><br> In order to locate the bounce on the tables, the table tennis ball is released from 30cm in free fall with equipment was. …”
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Mechanical Behavior of Briquettes Made from a Mixture of Sawdust and Rice Husks for Commercialization by Oscar Araque, Nelson Arzola, Laura Gallego

“…In compression tests, Von Mises stresses of between 87 and 90 MPa and Von Mises strains between 0.09 and 0.12 m/m were found. Free-fall tests showed von Mises stresses below 4.24 MPa. …”
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The Dependence of Repulsion Tennis Ball from the Air Pressure in it by Dusko Bjelica, Marija Bubanja, Jovan Gardasevic

“…The setting of the experiment was done by fi lming the free fall of the prescribed tennis balls and a series of rebounds after being rejected from a solid surface. …”
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