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Logarithmic spirals and continue triangles
Journal of Computational and Applied Mathematics, 2016 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
ANATRIELLO, GIUSEPPINA +1 more
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Frontiers in Energy Research, 2022 Accurate forecasting of an electric load is vital in the effective management of a power system, especially in flourishing regions. A new hybrid model called logarithmic spiral firefly algorithm-support vector regression (LS-FA-SVR) is proposed to ...
Weiguo Zhang +5 more
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A “Logarithmic Spiral” in the Brain: Images of an Intracranial Dermoid Cyst
Brain Science Advances, 2016 A logarithmic spiral is a self-similar spiral curve, which often appears in nature, e.g., mollusk shells. In the normal tissues of the human body, the cochlea is also an approximate logarithmic spiral. However, approximate logarithmic spirals are rarely,
Meiqing Lou, Yaodong Zhao
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Aerospace, 2015 Research on shock wave mitigation in channels has been a topic of much attention in the shock wave community. One approach to attenuate an incident shock wave is to use obstacles of various geometries arranged in different patterns. This work is inspired
Qian Wan, Veronica Eliasson
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Design and Investigation of an Asymmetric Logarithmic Spiral Gear Drive
Applied Bionics and Biomechanics, 2022 Sliding on gear teeth working surfaces has negative effects on the performances of gears, such as tooth surface wear, pitting, etc. In order to reduce the gear sliding during high speed and heavy load, a new type of pure rolling gear, named as an ...
Zenghuang He +4 more
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Dynamics of an Invincible Troop Formation in Ancient Open Battlefields [PDF]
Interdisciplinary Description of Complex Systems, 2021 One of the most enthralling ancient magical battle formation tactics is the Chakravyuh -- a multilayer dynamic defensive structure, which was used in the 18-days long Kurukshetra war as described in the great Indian epic Mahabharata and in many ...
Kishore Dutta
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Xi'an Gongcheng Daxue xuebao, 2021 In order to solve the problem of insufficient carrier space caused by the antenna loaded inside the conical seeker, the conformal four arm conical spiral antenna which applied to the main frequency of 1.575 GHz satellite positioning communication system ...
Wei SHEN +5 more
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Zbornik radova (Građevinski fakultet Sveučilišta u Rijeci), 2022 U ovom radu detaljnije se proučavaju svojstva logaritamske spirale zadane upolarnom sustavu te je stoga u uvodu najprije ukratko objašnjen polarni sustav. Usredišnjem dijelu rada obrazloženo je svojstvo logaritamske spirale koja sve svojeradijalne zrake siječe pod istim konstantnim kutom.
Rabar, Karmen, Sošić, Milena
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Inverse Stereographic Projection of the Logarithmic Spiral
, 2013 Educação Superior::Ciências Exatas e da Terra::MatemáticaThis Demonstration shows the inverse stereographic projection of a logarithmic spiral onto the unit sphere.
Mahieu, Erik
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Influence of Blade Profiles on Plastic Centrifugal Pump Performance
Advances in Materials Science and Engineering, 2020 To study the influence of blade profiles of the plastic centrifugal pump on pump performance, the impeller blade profiles were designed and drawn by the single arc method, double arc method, logarithmic spiral method, and B-spline curve method ...
Hui Zhang, Lingfeng Tang, Yongtao Zhao
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