OALib Journal
  OALib Journal is an all-in-one open access journal (ISSN Print: 2333-9705, ISSN Online: 2333-9721). It accepts a manuscript for the peer-review processing, typesetting, publication and then allocated to one of the 322 subject areas. The article processing charge for publishing in OALib journal is Only $99. For more details, please contact service@oalib.com. Submit now
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Dec 01, 2023Open    Access

Indefinite Dot Quotients in 3-Dimensional Space

Jixing Wang
Up to now, there is a long time problem that dot product has no corresponding division. In order to solve this problem, in this paper, indefinite dot quotients are introduced as extensive inverse operations of dot products, which solve the problem in 3-dimensional space that the quotient of a number and a vector on dot product does not exist from another angle. Some basic properties, and some expected operation properties, and two forms of geometric expressions and six coordinate formulas of ind...
Open Access Library J.   Vol.10, 2023

Nov 28, 2023Open    Access

The Wave Theory Principles of Human Motion

Feng Wen, Yabin Peng, Hongfei Li, Sanming Hu, Kai Liu, Ganming Li
This paper presents a meticulous analysis of the alterations in the human body’s center of gravity and static friction during movement. The objective is to comprehend the autonomous locomotion of the human body without external propulsion or tension. A wave theory model is proposed to elucidate the fundamental process of human motion on the ground. By considering one foot as a fulcrum, the other foot functions as a lever, generating torque and propelling the forward movement of the human body. T...
Open Access Library J.   Vol.10, 2023

Jul 28, 2023Open    Access

Improving Least-Squares Surface Reconstruction through Fourth-Order Adams Method and Iterative Compensation

Geng An, Fenlin Yang, Guangying Liu, Feifan Fu
The Southwell model stands as a prominent algorithm within the realm of the least squares surface reconstruction, finding wide application. This algorithm boasts notable merits, including rapid computation and an approximation of the reconstructed surface that closely mirrors reality. Nevertheless, it is not without its drawbacks, as it exhibits substantial reconstruction errors and proves to be susceptible to the presence of noisy data. To enhance the precision of the reconstructed object’s thr...
Open Access Library J.   Vol.10, 2023

Nov 30, 2022Open    Access

Indefinite Cross Divisions of Vectors in Natural Space

Jixing Wang, Lan Cheng
In this paper, in order to solve the problem that cross product has no corresponding division in natural space, indefinite cross divisions are firstly introduced as the inverse operations of cross products, which solve the problem from another angle. Then a lot of basic properties of indefinite cross divisions are obtained, such as the Conversion Formulas between left and right indefinite cross quotients, and linear operation properties, where some are expected and some are special. Especially, ...
Open Access Library J.   Vol.9, 2022

May 30, 2022Open    Access

Effect of Porosity on the Laminar Condensation Type Thin Film on a Vertical Wall in Forced Convection

Momath Ndiaye, Madialène Sène, Goumbo Ndiaye, Mamadou Salif. Mané
Studies concerning induced heat transfer by the condensation in forced convection of a thin film of a saturated vapor in medium porous, have received particular attention because of their numerous applications in various fields of technology. Thus, the presence of a layer of porous material on a plane wall generates an increase in heat transfer compared with that observed for a flat plate, subject to the same aeraulic and thermal conditions. This prompted us, given the large field of application...
Open Access Library J.   Vol.9, 2022

Oct 21, 2021Open    Access

A New Way to Calculate Gravity Force from Mass Total Energy

Keli Kou
This paper introduces a new way to calculate gravity force from mass total energy, instead of from matter of mass. By introducing total energy (E1 and E2) of the two objects into Newton’s gravitational theory, Newton’s gravitational formula can be modified from F = GM1M2/r2 as F = GE1E2/(C4r2). E1 and E2 are the total energy of the two objects and C is the light speed. Then this formula can be furt...
Open Access Library J.   Vol.8, 2021

Apr 15, 2020Open    Access

The Significance of an Unnoticed Theoretical Element

Eliahu Comay
Relativistic properties of a Lagrangian density are compared with those of a Hamiltonian density. It is proved that a Lagrangian density and a Hamiltonian density undergo different Lorentz transformations. This outcome is a theoretical element that has been unnoticed for a very long time. It is also proved that this theoretical element plays a crucial role in the structure of weak interactions theory. In particular, it is shown that the theory that uses this element is overwhelmingly superior ov...
Open Access Library J.   Vol.7, 2020

Mar 05, 2018Open    Access

Analysis of the Motion of Frenkel-Kontorova Dislocations in Single Crystals of Aluminum with Allowance for the Peierls Barrier

Mileta Arakelyan
The regularities of the motion of a one-dimensional Frenkel-Kontorova dislocation in pure aluminum at helium temperatures are studied. Computer simulation was carried out using the sine Gordon equation, written in dimensionless variables. It is proven that when the transition to dimensionless variables the discreteness of the model is preserved. The dependence of the true values of stresses on
Open Access Library J.   Vol.5, 2018

Nov 22, 2017Open    Access

Bi-Stable Spiral Waves: Stepped Spiral Waves

Jian Gao, Qun Wang, Huaping Lv
A new type of bi-stable spiral waves called “stepped spiral waves”, is investigated in this study in an oscillatory medium exhibiting period-doubling bifurcations. Prior to the period-doubling bifurcation of this system, the stepped spiral waves are produced by an unwanted phase trajectory event; the loss of symmetry takes the form of synchronization defect lines, where the trajectory in the l
Open Access Library J.   Vol.4, 2017

Jun 20, 2017Open    Access

On the Extension of the Baryonic Tully-Fisher Relation to Galaxy Clusters and Super Massive-Cosmic Systems

Barbaro Quintero-Leyva
The Baryonic Tully-Fisher relation was extended to clusters hypothesizing that a0, the characteristic acceleration of the Modified Newtonian Dynamics (MOND), depends on the mass of the system. Circular speeds were calculated for systems with mass up to 1021 M
Open Access Library J.   Vol.4, 2017


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