scholarly journals An Assessment of the Application of Bernoulli’s Theorem in the Generation of Lift Force

2021 ◽  
Vol 10 (3) ◽  
Author(s):  
Garv Shah ◽  
Aman Singhal ◽  
Raadnya Apte ◽  
Rushaad Dupetawalla
Keyword(s):  
Detailed Analysis ◽  
Real World ◽  
Lift Force ◽  
Aviation Industry ◽  
Conservation Of Energy ◽  
Conservation Of Momentum ◽  
Bernoulli’S Theorem ◽  
Third Law ◽  
Newton’S Laws ◽  
Aerodynamic Lift

In this paper, we will be performing a detailed analysis of the application of Bernoulli’s Theorem in aviation and aerodynamics. The aim of our experiment and consequently this paper is to verify the application of Bernoulli’s Theorem in the aviation industry. In the field of aerodynamics, Bernoulli’s Theorem has been specifically used in shaping the wings of an aircraft. Over the years, however there has been a significant controversy in the aviation industry regarding the generation of lift force, especially the applicability of Newton’s Third Law of Motion along with Bernoulli’s Theorem. The controversy seems to be due to a combined effect of Newton’s and Bernoulli’s theorems’ (e.g. ‘Equal Transit Time Theory’), which may be incorrectly applied in the real world. Further, it seems that people are over-simplifying the problem of aerodynamic lift leading to the dismissal of either one of the theorems, when in reality both the theorems seem to be at play, as explained in this paper. For the generation of lift in air, momentum, mass and energy need to be conserved. Newton’s laws take into account the conservation of momentum, whereas Bernoulli’s Theorem considers the conservation of energy. Hence, they are both relevant for the generation of lift in air. However, no one has been able to determine accurately the working of both these theorems in the process of providing lift to an aircraft. Through this research paper, we have been able to prove the effect of Bernoulli’s Theorem in generating lift in air.

Hamiltonian Dynamics and Phase Space

2019 ◽  
pp. 83-108
Author(s):  
David D. Nolte
Keyword(s):  
Phase Space ◽  
Hamiltonian Systems ◽  
Hamiltonian Dynamics ◽  
Orbital Dynamics ◽  
Legendre Transform ◽  
Lagrange Equations ◽  
Conservation Of Energy ◽  
Hamiltonian Equations ◽  
Generalized Coordinates ◽  
Conservation Of Momentum

Hamiltonian dynamics are derived from the Lagrange equations through the Legendre Transform that expresses the equations of dynamics in terms of the Hamiltonian, which is a function of the generalized coordinates and of their conjugate momenta. Consequences of the Lagrangian and Hamiltonian equations of dynamics are conservation of energy and conservation of momentum, with applications to collisions and orbital dynamics. Action-angle coordinates can be defined for integrable Hamiltonian systems and reduce all dynamical motions to phase space trajectories on a hyperdimensional torus.

scholarly journals Depictions of deception: A corpus-based analysis of five Shakespearean characters

2020 ◽  
Vol 29 (3) ◽  
pp. 246-274
Author(s):  
Dawn Archer ◽  
Mathew Gillings
Keyword(s):  
Detailed Analysis ◽  
Real World ◽  
Linguistic Features ◽  
Dramatic Effect ◽  
Close Proximity ◽  
Lady Macbeth ◽  
First Folio

Drawing on the Enhanced Shakespearean Corpus: First Folio Plus and using corpus-based methods, this article explores, quantitatively and qualitatively, Shakespeare’s depictions of five deceptive characters (Aaron, Tamora, Iago, Lady Macbeth and Falstaff). Our analysis adopts three strands: firstly, statistical keywords relating to each character are examined to determine what this tells us about their natures more generally. Secondly, the wordlists produced for each of the five characters are drawn upon to determine the extent to which they make use of linguistic features that have been correlated with, or linked to, acts of deliberate deception in real-world contexts. Thirdly, we make use of the results identified during the two aforementioned strands by using them to identify particular (sequences of) turns that are worthy of more detailed analysis. Here, we are primarily interested in (a) whether these keywords/deceptive indicators cluster or co-occur and (b) whether these interactions are the same as those identified by other scholars exploring depictions of deception in Shakespeare from a literary perspective. The findings indicate that deception-related features are indeed used collectively/in close proximity, by Shakespeare, at points where a character speaks to other characters disingenuously. They also suggest that Shakespeare’s deceptive depictions do change stylistically, from character to character, in line with those characters’ different characterisations and situations, that Shakespeare draws on atypical language features – such as self-oriented references – when it comes to some of his depictions of deception and that Shakespeare uses these various stylistic features to achieve a range of dramatic effect(s).

scholarly journals DDoS-Capable IoT Malwares: Comparative Analysis and Mirai Investigation

2018 ◽  
Vol 2018 ◽  
pp. 1-30 ◽  
Author(s):  
Michele De Donno ◽  
Nicola Dragoni ◽  
Alberto Giaretta ◽  
Angelo Spognardi
Keyword(s):  
Comparative Analysis ◽  
Internet Of Things ◽  
Detailed Analysis ◽  
Real World ◽  
General Framework ◽  
Denial Of Service ◽  
The Internet ◽  
Distributed Denial Of Service ◽  
Ddos Attacks ◽  
The Internet Of Things

The Internet of Things (IoT) revolution has not only carried the astonishing promise to interconnect a whole generation of traditionally “dumb” devices, but also brought to the Internet the menace of billions of badly protected and easily hackable objects. Not surprisingly, this sudden flooding of fresh and insecure devices fueled older threats, such as Distributed Denial of Service (DDoS) attacks. In this paper, we first propose an updated and comprehensive taxonomy of DDoS attacks, together with a number of examples on how this classification maps to real-world attacks. Then, we outline the current situation of DDoS-enabled malwares in IoT networks, highlighting how recent data support our concerns about the growing in popularity of these malwares. Finally, we give a detailed analysis of the general framework and the operating principles of Mirai, the most disruptive DDoS-capable IoT malware seen so far.

The Conservation of Energy and Momentum in the Positron-Electron Annihilation According to Complete Relativity

2014 ◽  
Vol 5 (3) ◽  
pp. 854-858
Author(s):  
Giuseppe Bellotti
Keyword(s):  
Three Dimensional ◽  
Standing Waves ◽  
Energy Conditions ◽  
Conservation Of Energy ◽  
Electron Positron ◽  
Pair Annihilation ◽  
Conservation Of Momentum ◽  
Energy And Momentum ◽  
The Right ◽  
Electron Positron Pair

According to Complete Relativity (an improvement of Special Relativity where a new postulate was introduced: an electron cannot move at average speeds less than  u0 = αc / π  where  α  is the constant of fine structure and  c  is the speed of light), and with the hypothesis that the electron and positron are two three-dimensional electromagnetic spherical standing waves, the electromagnetic standing waves of an electron-positron pair can overlap in the low energy conditions and generate a single  γ ray  of  E = 1.022  MeV.  Instead the actual physical theories consider a model of positron-electron pair annihilation, where conservation of momentum requires the creation of two 511 keV photons moving toward opposite directions. But in the paper we do not consider any photons: there is only a progressive electromagnetic wave compound by two electromagnetic standing waves. Only a thorough test will be able to decide the right model.

Usability and Learning in Educational Virtual Realities

1995 ◽  
Vol 39 (9) ◽  
pp. 486-490 ◽  
Author(s):  
Marilyn C. Salzman ◽  
Chris Dede ◽  
R. Bowen Loftin
Keyword(s):  
Virtual Worlds ◽  
Virtual Learning Environment ◽  
Immersive Virtual Reality ◽  
Conservation Of Energy ◽  
General Utility ◽  
Learner Centered ◽  
Virtual Realities ◽  
Newton’S Laws ◽  
Energy And Momentum ◽  
Learning Issues

Designing ScienceSpace, a series of virtual realities for teaching difficult science concepts and skills, has implications for designing sensorily immersive educational virtual realities. Through the design and evaluation of the worlds in ScienceSpace we are gaining insights into the general utility of sensorial immersion, as well as virtual reality's potential and limitations for enhancing learning. This paper focuses on the learner-centered design and evaluation of NewtonWorld, one of the virtual worlds in ScienceSpace. NewtonWorld is a sensorily immersive virtual learning environment in which students can challenge their intuitions about Newton's laws and the conservation of energy and momentum through game-like inquiry activities. We discuss how usability and learning issues have shaped the design and refinement of NewtonWorld. Additionally, we discuss implications of our work for designing sensorily immersive virtual reality interfaces that are usable and facilitate learning.

2. Matter from the outside

2014 ◽  
pp. 22-37
Author(s):  
Peter Atkins
Keyword(s):  
Physical Chemistry ◽  
Free Energy ◽  
Gibbs Energy ◽  
Absolute Zero ◽  
Second Law ◽  
Conservation Of Energy ◽  
The Third ◽  
Laws Of Thermodynamics ◽  
Third Law

‘Matter from the outside’ focuses on the applications of thermodynamics in physical chemistry. Thermodynamics is the science of energy and the transformations that it can undergo. It plays a central role in understanding chemical reactions. There are four laws of thermodynamics: the Zeroth Law establishes the concept of temperature; the First Law concerns the conservation of energy; the Second Law deals with entropy (a measure of the quality of energy); and the Third Law concerns the absolute zero of temperature. The property enthalpy is explained along with Gibbs energy and free energy. Physical chemists can deploy the laws of thermodynamics, laws relating to matter from the outside, to establish relations between properties and to make important connections.

Unification of Newton's laws of motion

2003 ◽  
Vol 81 (5) ◽  
pp. 713-735
Author(s):  
A F Antippa
Keyword(s):  
Second Law ◽  
Mass Scaling ◽  
Self Energy ◽  
The Third ◽  
Inertial Frames ◽  
Third Law ◽  
Newton’S Laws ◽  
Laws Of Motion

Newton's three laws of motion are unified into one law (a slightly modified second law), valid in generalized inertial frames (defined by a slightly modified first law), invariant under mass scaling (guaranteed by the third law), and having important implications for the concept of force and the problem of self-energy. PACS Nos.: 45.20.Dd, 45.50.Jf, 45.05.+x

Bernoulli's Theorem in Aerodynamics

1926 ◽  
Vol 30 (190) ◽  
pp. 607-611
Author(s):  
M. S. Hooper
Keyword(s):  
Fluid Motion ◽  
Simple Expression ◽  
Conservation Of Energy ◽  
Bernoulli’S Theorem

Students of Nature have come to believe that the sum total of energy cannot be changed; that is, in the principle of the conservation of energy. Bernoulli's theorem is a simple expression of the application of the principle to fluid motion and in this form the principle is probably one of the most useful conceptions that the engineer has as a guide in a subject which presents many difficult problems.

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