Mathematics

The purpose of this study is to examine operational delay with on time performance at PT Garuda Indonesia located in Terminal 3. The problem of this study is there are delay due to flight operations and airport facilities. The study collected the data from the company and by doing the field research. Simple and multiple regression analysis, correlation coefficients, determinant coefficients and hypothesis testing were used to analyse the data. The results show that there is a negative and strong relationship due to Flight Operation with On Time Performance. The coefficient of determination is 92%, the results of hypothesis test (t-test) have a significant positive effect. The connection of delay due to Airport Facilities with On Time Performance is Y = 92,549 + (-0,123X) from the regression equation looks down (negative). The correlation coefficient r = 0.602 has a positive and strong relation. The coefficient of determination is 36.2%, the results of hypothesis testing (ttest) have...

We study the relationship between finite volume and mixed finite element methods for the the hyperbolic conservation laws, and the closely related convection-diffusion equations. A general framework is proposed for the derivation and a functional framework is developed which could allow the analysis of relating finite volume (FV) schemes. We show via two non-standard formulations, that numerous FV schemes, including

Validation is the process of confirming that the method used has capabilities that are consistent with what is needed while being used continuously. The AMH ELISA kit has carried out a method validation process before marketed and used in a laboratory to determine AMH levels. AMH is a specific biomarker used to diagnose PCOS patients. The laboratory can adopt a validated procedure but the laboratory still needs to confirm its ability to apply this method. Verification is the provision of objective evidence that the measured parameters meet the specified requirements. The purpose of this study was to find out how well verification of the ELISA AMH kit and comparing the calculation of 4 PL with linear regression. Based on the statistical test obtained p = 0.871 (p>0.05). It can be said that there was no significant difference between Optical Density days 1 and 7(p = 0.05). Linear regression equation (r) 0.9543 (p = 0.000; p <0.05) while in equation 4 PL (r) 1,000. The ELISA kit ...

Thesis by Klaus Herkrodt, 1985, Technical University of Braunschweig
94 pages

> Content ...
> Vorwort  3
> Inhaltsverzeichnis  4
> Formelzeichen  5
> 1. Einleitung  6
> 2. Stand der Technik - Aufgabenstellung  7
> 3. Einteilung der Trochoiden  9
  » 3.1 Begriffsbestimmung  9
> 4. Doppelte Erzeugung der Trochoiden  12
  » 4.1 Epitrochoide - Peritrochoide  12
  » 4.2 Zweifache Erzeugung von Hypotrochoiden  15
  » 4.3 Gleicheit der Kruemmungsmittelpunkte  17
> 5. Erzeugung der Trochoiden - Geometriepaarungen  20
  » 5.1 Allgemeine Beschreibung der Bewegungsvorgaenge bei der Kreisrollung  24
  » 5.2 Epitrochoiden + deren Huellkurven  30
  » 5.3 Hypotrochoiden + deren Huellkurven  38
  » 5.4 Hypotrochoide + Zykloide als Resthuellkurve  44
> 6. Kinematik der Trochoiden  51
  » 6.1 Kreisungspunktkurve  51
  » 6.2 Ausgezeichnete Punkte der Trochoiden  54
  » 6.3 Evoluten  60
  » 6.4 Gleitgeschwindigkeit + -beschleunigung in den Stuetzpunkten  64
  » 6.5 Extremwerte der Gleitgeschwindigkeiten + -beschleunigungen bei Trochoiden + deren Huellkurven  71
> 7. Gangpolbahn + Rastpolbahn als singulaere Punkte  75
> 8. Beispiele + Sonderfaelle  77
  » 8.1 Motor- + Pumpengeometrien  78
  » 8.2 Cyclo-Getriebe  80
  » 8.3 Exzenterschneckenpumpen  81
  » 8.4 Geometrien mit variabler Kammerflaeche  84
  » 8.5 Rotor im Rotor  85
> 9. Zusammenfassung  86
> Literaturverzeichnis  88
> Lebenslauf  94

german keywords: Wankelmotor / Kreiskolbenmotor
English Keywords: Wankel Engine / Wankel Rotary Engine / Rotary Piston Engine / Rotary Combustion Engine

O presente trabalho teve por objetivos avaliar a composição de rizomas do lírio-do-bejo (Hedychium coronarium) e isolar e caracterizar seu amido, por meio de análises físicas e físico-químicas. A composição química dos grânulos de amido isolados dos rizomas também foi determinada, bem como o formato, tamanho, distribuição de tamanho de partícula por difração a laser, viscosidade de pasta em analisador rápido de viscosidade, poder de inchamento, índice de solubilidade em água, propriedade térmica por calorimetria diferencial de varredura e cristalinidade por difração de raios X. Observou-se que os rizomas apresentaram elevado teor de água e baixos teores de matéria graxa, carboidratos, cinzas, proteínas e fibras. Os rizomas de lírio-do-brejo apresentam-se inadequados para produção de amido, devido ao baixo teor de matéria seca (17,3%), com 21,97% de amido, bem como fibras longas e látex, que dificultam a extração do amido. O amido extraído apresentou pureza de 99,2%, com 37,2% de ami...

In this note, we prove a Schur-type lemma for bounded multiplier series. This result allows us to obtain a unified vision of several previous results, focusing on the underlying structure and the properties that a summability method must satisfy in order to establish a result of Schur’s lemma type.

A selection of some of Novalis’s most important reflections on mathematics from the years 1798-1800. Introduced and translated into English by David W. Wood.

In: Symphilosophie: International Journal of Philosophical Romanticism 3 (2021): 273-290
https://symphilosophie.com/current-issue-2021/

Predicting the runtime complexity of a programming code is an arduous task. In fact, even for humans, it requires a subtle analysis and comprehensive knowledge of algorithms to predict time complexity with high fidelity, given any code. As per Turing’s Halting problem proof, estimating code complexity is mathematically impossible. Nevertheless, an approximate solution to such a task can help developers to get real-time feedback for the efficiency of their code. In this work, we model this problem as a machine learning task and check its feasibility with thorough analysis. Due to the lack of any open source dataset for this task, we propose our own annotated dataset, (The complete dataset is available for use at https://github.com/midas-research/corcod-dataset/blob/master/README.md) CoRCoD: Code Runtime Complexity Dataset, extracted from online coding platforms. We establish baselines using two different approaches: feature engineering and code embeddings, to achieve state of the art...

I am republishing at academia the books i published every decade in world war III since 30 years ago during my masters at Columbia University,  I discovered an error in the periodicity of the most important cycle of the science of economics, the Kondratieff cycle that separates the different St-ages of the Industrial r=evolution of machines.  Kondratieff analyzed the Industrial Revolution in Russia, concluding that for 50 years the train was the engine of its development; thus establishing a 50 year cycle of economical activity that bears his name. However in 3rd World countries machines arrive latter, when they have already evolved in the Industrial World. So the Russian cycle of steam was shorter than the World’s cycle. When we make an exhaustive analysis of the cycle in the Western World, where those machines were discovered, we find a longer 72 years generational cycle.  The causes of that exact 72±8 year cycle of global stock-crashes are simple. The Industrial Revolution is the Evolution of Machines & Money, energetic and informative systems, traditionally made of metal, which follow the laws of morphologic evolution. Machines and money evolve according to the energy and information, they use to become re=produced.
Humans evolve a new type of energy and information, derived from that energy, which renews all the machines and financial instruments of the economy every human generation of 72 years, in which a nation of ‘founding fathers’, captains of industries, their sons and grand-sons, reproduce and evolve a new energy, machine and form of money to its perfection. Yet at the end of the cycle, the machine and money becomes over-reproduced, saturating the market and provoking, due to a crisis of growth, a global economical crash. Those generations bring the nation that discovered the new energy to a top predator status of history, as the substance of which weapons are made.
—Thus, we had an age of steam machines, the age of England, between 1780s and 1857, followed by a crisis of overproduction of steam machines and stock-money that brought the 1857±7 years crashes of the train-based economy.
—From 1857 to 1929, we lived in the age of electro-chemical energies, machines and chemical explosives, dominated by Germany, followed by a crisis of overproduction of cars and radios, which caused the 1929 crash, 72 years after the train crash.
—It came then the III cycle of electronic machines, electronic money and Nuclear Bombs that took place from 1929-2001, the age of America; which again ended in the dotcom and mortgage crashes, 72+7 years after 1929.
- Followed by the Age of the Singularity, the IV Cycle of Evolution of machines, dominated by robots that would come after an age of global wars that unmistakably separated those cycles but was a taboo subject in the study of economics as a science.
And yet the dates of the war phase of Kondratiff’s cycle were clear. Each technological cycle started and ended in an age of global wars in which machines were reconverted into its ‘evil twins’, top predator weapons used then in a crescendo period of global wars, starting by ‘splendid little wars’ when those machines were tested in 3rd world countries, followed by an age of ‘civil wars’ in the peripheral regions of decadent, broken old empires, followed by an industrial all-out war between the old and new industrial powers of the cycle, concluding with a holocaust of the financial and military elites that carried the cycle to its conclusion. This part of the generNational cycle of global power was unsettling. So I researched in depth all its details before daring to write a paper for publication.
Then it came another disquieting surprise: scholar historic and economic magazines refused to publish; a book I wrote on the subject was rejected by over one hundred editorials and so I had to pay a small printing press (Bookmasters, Ohio) to print ‘Bio-History, Bio-Economics’, the full model which had by then grown to an entire analysis of Human history, since the cycle as most periodic processes of Nature had a longer and shorter decametric wave of 800 years cycles of evolution and reproduction of top predator weapons that erased all Eurasian civilinations (cultures divided in tribal nations that oppose each other in wars); the bronze, chariot, iron, coin, chivalry, gunpowder and digital age of weapons that now become the protagonists of III world war, and the short ±8 years cycle of splendid little wars.
So 30 years ago came out the first book on the series of World Wars, which I send to different think-tanks and Universities that ignored it, because of what I came to call the anti-quantum paradox: Unlike in physics where the scientist is so large it influences the observable in History the social scientist is inside the organism, either a fascist dictatorship or a capitalist society ruled by those company-mothers of machines and weapons and its lobbies that corrupt its politicos.
So they don’t distribute ideas against the cycle. And both sides of it, fascist dictators and capitalist speculators work to make it happen. Thus in this 3rd round on the global age of wars between two different blocks of Earth’s nations, roughly divided into a capitalist, dominant block that produces the best weapons, and a fascist, smaller group more warrior-prone… that will take war to its natural final stage of annihilation, I don’t expect the world to listen.
This was the last published book in English, again in a small print X-libris after several rejections, a decade ago...

But why to publish in smaller books, obscure academic outlets and blogs blocked in both blocks? Because after the war ends, and the ‘belli nervi, pecunia et cadaver infinita’ engine of war and its idol-ogies of nationalism (the worship of weapons) and capitalism (the worship of go(l)d) recede, there will be if humanity survives, a last chance for humanism, as there was the (wasted) chance of Bretton Woods and UNO, when humanity might humbly reflect on their Nature as ‘dust of spacetime’, and before returning to dust, reform the system along the organic, natural measures explained in the larger humanist model of those texts, which is the final evolution of a perfect, ideal world that serves the need of the 99%, not those of dictators & stockrats owners of arm companies that seek only power and profits with p-lineal momentum and manifest destiny all the way to hell.  There is still a window for peace if EU nations recognize NATO’s militarism was part of the problem, by-pass Zelenski’s TV-hero role & press hate memes, let Russia withdraw with honor, phasing out sanctions, offering both nations entrance to EU, as Putin might accept democratic reforms before retiring. But if those sanctions destroy Russia he’ll go into an all-out revenge Nuclear war before submitting. We are NOT justifying him but asking mankind to come to its senses before destroying itself once more.

OpenMP parallelization of multiple precision Taylor series method is proposed. A very good parallel performance scalability and parallel efficiency inside one computation node of a CPU-cluster is observed. We explain the details of the parallelization on the classical example of the Lorentz equations. The same approach can be applied straightforwardly to a large class of chaotic dynamical systems.

Although gamification is one of the latest education trends, it has not been investigated adequately in the Egyptian EFL context. Hence, this mixed-method study aimed to explore the effect of using gamification on Egyptian EFL learners' vocabulary knowledge and their attitudes toward gamification use. The study followed a pre-posttest quasi-experimental research design. A total of 68 English Majors in the Faculty of Education at New Valley University participated in this study. The instruments included a vocabulary test (APTIS), an attitude questionnaire (designed by the researcher), learning logs and follow-up interviews. The experimental group used Quizizz, whereas the control group used paper-based sheets. After a seven-week treatment period, the participants were post-tested. The results showed significantly increased vocabulary knowledge of the experimental group in the APTIS test compared to the control group. The effect size of the treatment was remarkable (Cohen’s d = 1....

Mini-Curso dividido em três partes:

1. Introdução
Em que discutiremos o diagnóstico de Badiou sobre o século vinte e o mundo contemporâneo, bem como as razões pelas quais a filosofia parece ter se tornado impossível hoje, localizando o próprio Badiou no interior desse mapeamento histórico e conceitual.

2. Filosofia e Ontologia
Em que partiremos das críticas à ontologia clássica para então demonstrar como a decisão de equacionar ontologia e matemática responde a elas adequadamente. Em seguida, analisaremos alguns conceitos da teoria dos conjuntos a fim de entender as consequências filosóficas da decisão de Badiou.

3. Verdade e verdades:
Em que as críticas relativistas ao tema da verdade serão tomadas como condições para uma nova doutrina da verdade. Veremos que a verdade é entendida como uma capacidade imanente a diferentes campos do pensamento, mas não à própria filosofia, cuja tarefa é pensar a compossibilidade das verdades amorosas, científicas, artísticas e políticas de uma época.

An efficient and new but non-intrusive method to detect the fluctuation in gear load may be the motor current signature analysis (MCSA). In this paper, a multi-stage transmission gearbox (with and without defects) has been studied in order to replace the conventional vibration monitoring by MCSA. It has been observed through FFT analysis that low frequencies of the vibration signatures have sidebands across line frequency of the motor current whereas high frequencies of vibration signature are difficult to be detected. Hence, discrete wavelet transform (DWT) is suggested to decompose the current signal, and FFT analysis is carried out with the decomposed current signal to trace the sidebands of the high frequencies of vibration

Tesis doctoral sobre el mal en Platón. ¿Qué es el mal para Platón? ¿Cuántos tipos de mal existen? ¿Cómo podemos remediar los males que acontecen? ¿Será posible evitarlos? Platón sugiere que mediante la música, la matemática y la gimnasia podemos encontrar el camino hacia el bien.

Since the first volume of this work came out in Germany in 1924, this book, together with its second volume, has remained standard in the field. Courant and Hilbert's treatment restores the historically deep connections between physical intuition and mathematical development, providing the reader with a unified approach to mathematical physics. The present volume represents Richard Courant's second and final revision of 1953.

We have been lied to about what real Pythagorean harmonics alchemy is. The lie started with Philolaus who wrote a book, even though he was not a real practitioner of the Pythagorean training, requiring five years of silence meditation as incubation. The lies in this book were then spread by Plato and Archytas and powerful lies they were! They created Western civilization which has enabled very fancy materialistic technology, at great expense to ecology and social justice around the world. Aristotle critiqued the lies spread by Plato but Aristotle did not know the real truth of Pythagorean philosophy. By then, as Dr. Peter Kingsley has pointed out, it was too late.

In fact the secret of Pythagorean alchemy was known in ancient Egypt since 2/3 was the sacred fraction there, as well as in ancient Sumeria and ancient Dravidian culture and ancient Chinese culture – going back to the original human culture, the San Bushmen from at least 70,000 years ago! Just as Pythagoras means "snake-master" so too did the San Bushmen teach that N/om as snake energy is sacred and the ancient Greeks knew this was the reproductive life force energy that is ionized into the cerebrospinal fluid. For example ejaculation is mainly lecithin and lecithin is what myelinates the neurons so that more electromagnetic charge can be stored up in the body.

And so the One was also known as the Counter-Fire that exists in the Underworld and as the pan pipes blow this creates the One as the Fire and light of the Universe. So the Pan Pipes were the original Harmonia "breathing" that feeds the spirit light energy. Or in other words the secret, as Empedocles taught, is to visualize the fire underneath the water in the body – to reverse the Tetraktys based on the complementary opposites of the Perfect Fifth and Perfect Fourth – so that more Air or Aion energy (ionized Snake kundalini) energy is created, called Qi or Prana by the ancients in China and India.

Since the first volume of this work came out in Germany in 1924, this book has remained a classic in its field. Courant and Hilbert's treatment restores the historically deep connections between physical intuition and mathematical development, providing the reader with a unified approach to mathematical physics. The present volumes represent Richard Courant's second and final revision of 1953. It will be of interest to mathematicians and physicists.

In their smash hit MATHEMATICAL STATISTICS WITH APPLICATIONS, debut creators Dennis Wackerly, William Mendenhall, and Richard L. Scheaffer present a strong establishment in factual hypothesis while passing on the pertinence and significance of the hypothesis in taking care of viable issues in reality. The creators' utilization of pragmatic applications and fantastic activities encourages you find the idea of insights and comprehend its basic job in logical research.

This Paper explores and summarises the Director's Duties of the UK Companies Act 2006 with emphasis on "the duty to promote the success of the company.

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This is  the demo version of my new number theory problem set which contains 307 problems from 2015 - 2016 mathematical competitions and olympiads around the world. If you want the original version, you can download it for a finite price here: https://parvardi.com/downloads/NT2016/