eBooks „speed“
207 eBooks were found for the search term „speed“.
Dr. Hedaya Mahmood Alasooly
Simulation of Some Power System, Control System and Power Electronics Case Studies Using Matlab and PowerWorld Simulator
- Technology & Engineering
- English
- 16056 Words
- No Age Recommendation
- 86
The book consists from three parts concerning simulation of some power system, control system and power electronics case studies using matlab and powerworld simulator programs• Part A: Simulation of Some Power Electronics Case Studies in Matlab Simpowersystem Blockset:• Part B: Control of DC Motor Using Different Control Strategies in Matlab:• Part C: Investigation of the Usefulness of the PowerWorld Simulator Program Developed by “Glover, Overbye & Sarma” in the Solution of Power System Problems:I. Part A: Simulation of Some Power Electronics Case Studies in Matlab Simpowersystem Blockset:This part covers some case studies that provide detailed, realistic examples of how to use SimPowerSystems in modeling power system dynamics in various types of application that use power electronics converters. The following case studies are simulated on the paper:1- Thyristor-Based Static Var Compensator.2. Transient Stability of a Power System with SVC and PSS.3. GTO-Based STATCOM.4. Control of load flow using UPFC.5- Control of AC motor.6- Control of DC motor.7- VSC-Based HVDC Link.II. Part B: Control of DC Motor Using Different Control Strategies in Matlab:A simple model of a DC motor driving an inertial load has the angular speed of the load, , as the output and applied voltage, , as the input. The system was used as an example in [1]. The ultimate goal of this paper is to control the angular rate by varying the applied voltage using different control strategies for comparison purpose. The comparision is made between the proptional controller, integral controller, propotional and integral controller, phase lag compensator, derivitive controller, lead integral compensator, lead lag compensator, PID controller and the the linear quadratic tracker design based on the optimal control theory.III. Part C: Investigation of the Usefulness of the PowerWorld Simulator Program Developed by “Glover, Overbye & Sarma” in the Solution of Power System Problems:The objective of this part is to investigate the usefulness of the power system simulator PowerWorld program developed by “Glover, Overbye &Sarma”. The results obtained from the power simulator program were presented for different case studies. The power system network used in this study consists from 6 buses. Area 1 includes bus 1-5 while Bus 6 will be part of Area 1 in some case studies, or will form separate area 2 in other case studies for comparison purpose. Note that the Available Transfer Capability (ATC) analysis add-on which determines the maximum MW transfer possible between two parts of a power system without violating any limits, and the voltage adequacy and stability tool (VAST) add-on that can solve multiple power flow solutions in order to generate a PV curve for a particular transfer or a QV curve at a given bus, was not studied here because we don’t have yet VAST add-on and the ATC add-on packages. [more]
Keywords: Matlab, Chopper, Simpowersystem, UPFC, FACTS Devices, Series Converter, AC Motor Drives, DC Motor Drives, HVDC Converters, Power System Dynamic Stability, Pulse Width Modulation, Static VAR Compensators, Thyristor Converters, DC motor, lead compensator, lag compensator, PI compensator, Optimal Control, Tracking, matlab, control system toolbox, Simulink, Power System Simulator, Power World Simulator, Power Flow, Load Frequency Control, Economic Dispatch, Optimal Power Flow, Faults Analysis, Area Control Error [more]
$14.99
Robert Hopkins
One More Step
- Fantasy
- English
- 107326 Words
- Ages 10 and up
- 27
The kingdom is threatened.
Who or what is ravaging the great forests is unknown.
One thing is known. The beasts come from the great mountains in the north; slaughtering everything in their way.
Rito Thelin is the second son of the King, who has little time for him. Rito has failed to find his brother, Gallan, lost in the northern woods.
Rito is sent out with only one retainer, Quirin, to try again. It is a hopeless task, his death all but assured. He carries one weapon. An ancient sword, named Fury. Nobody can read its ancient runes. If only Rito could.
On his journey he will meet Maesa, a young untested sorcerer. Maesa’s spells are prone to error with many an unforeseen consequence. She thinks it’s in the finger twiddles. Rito and Quirin will learn to stand back, with cowering an option. Maesa carries a terrible secret. A stolen spell of such great power it can never be used. Fortunately, she doesn’t know how to use it - yet.
Travelling from the west is Wen, an ancient sage, tired of existing beyond his time. He has sensed the evil in the north and is content to find and confront the dangers ahead. Much to his surprise he encounters one of the last wood-elves travelling through the great forests. The elf will fight to her last protecting the trees she loves. Thessalia is her name; as arrogant a being as Wen has ever met. If she ever finds out what secret Wen holds, things might change. Dramatically, and with it her arrogance. They do, and don’t.
Two men appear from the western trails. To say they are different in every way possible would be to stretch the meaning of ‘different.’ Tellen is a retired soldier of great experience wanting a quiet life. His companion is a haystack in human form, or so it appears. A giant of a man with phenomenal strength. They compliment each other perfectly. What can go wrong?
Unknown to Tellen, Totle has rescued the deadliest predator in the land. A huge animal that somehow moves with silence and speed through the surrounding forests. It has no natural enemies, none at all. But unnatural?
These three parties are fated to meet. They must blend together to form a band capable of facing down all dangers. All seems well enough until they find Suneth. A young lost child who needs rescuing. Suneth is sweet and innocent and happily accepted by the travellers. But she is in need of protection at a time when protecting themselves will be hard enough. One of them has seen Suneth dancing in the woods, surrounded by swarms of adoring butterflies. Why? Remains unanswered. None are what they seem.
Increasing horrors descend from the north. Some of the travellers may not survive.
Why should one of them wish to kill another member of the group, at a time when every living soul is needed?
The group will finally reach their final battle. They are asked to do the impossible. Turn around, go home would be the best advice to give.
Not for Rito, emerging as their natural leader. But who will follow him? [more]
Keywords: fantasy, magic, adventure
$0.00
JJ Pengilly
Blinkered
Tale of a Monkey on a Stick
- Fiction
- English
- 78341 Words
- Ages 16 and up
- 295
- 1
Horse racing is the Sport of Kings, but also the historical workplace of the underclass. Jockeys may inhabit both worlds and can rise, if talented and lucky, from pauper to feted royalty. Duncan Pengilly is at the peak of his powers and anointed at the top of his profession - a prince in silks. Following a fall Duncan now finds his murky past inhabiting the safe and confident place of his present. He fears for his safety - his sanity and his future - after he suffers a series of visions or hallucinations that render sitting atop a thoroughbred at full speed even more fraught with danger than it otherwise might be. At the same time his personal relationships also face the same prospects of imminent fracture. Risk and reflex are stock in trade for any successful jockey and Duncan responds to the threat by undertaking a reckless quest to find the source; to find a cure. In doing so he will be forced to confront his past in kaleidoscopic episodes and painful detail. Memories and dreams, imagination and truth. Blinkered offers a journey of discovery through the quagmire of the stable yard and glory of the racetrack, with observations and insight seen through both binoculars and Through the Looking-Glass. "Thomas Mann sat on a sumptuous black leather armchair on the business side of the desk. The only device or aid atop his desk was a cream telephone. Duncan sat uncomfortably on a chair of more humble expectations; a rigid frame perched upon a rigid frame. Duncan’s eyes darted about the room. It was sparsely decorated; a certificate of accreditation framed and set conspicuously on the wall behind the desk; a framed photograph of Mr Mann shaking hands with an unsmiling ex-Prime Minister (most widely remembered not for policy but for the manner in which he was to gain power) hung at an angle on the wall to the right. Duncan had expected a better show, piles of slow burnt ash and ample displays of flash-trash, objet d’tective: a gun, warm, though not still smoking, courtesy of Messers Smith and Wesson; knuckledusters, spotted with blood and tarnished with wear and abuse; handcuffs on the desk to be jingled and jangled at flat spots in the conversation; and there would be mug shots of criminals most vile, poor haircuts, bent and broken noses and distinguishing tattoos; a coffee crusted mug and food scraps, potato chips and various fluorescent colours of pizza toppings would brighten the desktop and floor; and where were the pornographic photographs, open files and fingerprint kits, the magnifying glass, the fucking detective stuff!? Duncan sat disillusioned and disappointed. A waste of time, he thought, preparing some excuse to leave before further embarrassing himself." [more]
Keywords: horseracing, jockeys, literature, horses
$0.99
joann harris
FEAR OF THE BEAST
A DAY OF RECKONING
- Horror
- English
- 291 Words
- Ages 18 and up
- 66
- 3
The town of Wheatfield no longer exists. Very little of the northeastern part of Fork County exists, except in the memories of those who may have once lived there and were fortunate enough to be gone when the great fireball struck, searing the land for miles. Scientists were stunned by the suddeness of the huge fireball, fir it seemed to materalized out of the heavens, traveling at such a tremendous speed, it was almost beyond calculation. "Where had it come from?" the scientists were asked by a stunned population. "From straight out of the sun," was the reply. "You could not have predicted it?"No.' Why?" The scientists hedged that question, for many of them were sworn avowed atheists. Finally, one man from an observatory in Washington who was not an unbeliever did reply, although not to the satisfaction of all of his colleagues. His reply brought laughter from more than a few of his fellow scientists.
How does one predict when the hand of God will fall, and how hard the blow will be? If indeed it had been as the scientists said, the hand of God, it had been a mighty slap from him. By the time various spies in the skies satellites, picked up on the cannoading mass of fiery destruction, it was already on top of the satellites, going through them, and burning them before they could be photographed, more than a one second shot at best, and transmit that to earth. Those pictures that did make it back to earth were immediately ordered to be seized by a presidential order.
Some said it was shaped like a Star of David. Others said it looked like an artist's conception of God's face; striking resemblance. The president told the scientists to shut their damn mouths, too, or faced the prospects of never receiving another dime of government money for anything. But many people witnessed the strange blue lights that preceded the crash of the whatever the hell it was, and they asked about those lights. But suddenly all were quiet about the mighty ball of fire, except for speculation. That soon began to fade as the news pushed the holocaust out of the headlines.
Only the insurance companies were left to ponder over the crash and dole out large sums of money to the relatives of those who had been killed. An astronomer in California thought he knew what had happened but he kept his mouth shut not out of any fear of the government, but because he felt it was the right thing to do. One investigative fellow did put some rather interesting and curious events together after a bit of prowling. But since he was a career army reservist and did not wish to spend his summer obligations to Uncle Sam cleaning up gooney bird shit on Guam , he kept his mouth shut.
"Someday, maybe he will write a book about it, and maybe by them he would believe it himself and be assured of the protection of the Dali Lama in some cave in Tibet.
What he had pieced together was that almost at the precise moment of fiery impact with earth, a series of fires leveled a huge man that was seen leaving earth, moving toward the heavens traveling at tremendous speed. No one knew what that thing was or if they did, they weren't saying, and there were some people who still remained unaccounted for after the fire at the mansion.
One of them was a young man by the name of Alex Balloon who was a minister in Wheatfield who had died under very mysterious circumstances back in "52" when another disaster had befallen the tragedy-ridden community, butt the investigative reporter wisely closed his journal on both disasters for a time.
It had been adnormally hot for this late in the season. By this time in the eastern part of Nebraska there was usually a lash of winter's approach in the air, a bit that brought color to the cheeks of pedestrains urgently but softly speaking of the harsh winter just ahead.
But the winds that blew across the plains and rolling sands hills had a torrid touch and brought a sudden surliness to the people of this sparsely populated county, turning most tempers raw and confusing a few as to why. The man knew why.
The few would learn too late. And out in the badlands some miles from Wheatfield , inside a fenced-in area where horror sprang to life back in the late 50's something stirred. A creature cautiously stuck its head out of the hidden cave and looked around, viewing its surrounding through evil, red eyes. The beast had felt the hot fingers of the wind pushing through the cave entrance as a probing hand might do, signaling those which serve another master that it was time.
The Dark One was near. The wind grew in strength and heat the beast snarling in reply. The manlike creature rose from its sentry position to crawl out of the filthy hole, rising to stand like human bits of dust and twigs and blowing sand striking its hairy body.
But to the beast it was a signal of love, a gesture of welcome. The beast roared its breath foul. It held its contempt for that God who occupies a more lofty position than the master of the beast.
For the creature knew but one god: the Prince of Darkness, the Lord of the Flies, Ruler of all that is Evil.
From behind the sentry came a guttural sound as other beasts rose from their long sleep, surly and hungry . They craved meat and the sweet taste of blood, but the sentry again tested the wind as the wind spoke its reply.
The sentry held up one warning paw to those below, holding them at bay. He growled and the others drew back into the darkness of the evil smelling hole in the earth. They knew they must obey the master. Thee growling sentry told them to wait the master will tell us when we may move. Be patient for you have waited more than twenty years. Wait." [more]
For Free
BAD Agar, Adrassil
Secret War: Upon Blood Sands
- Science Fiction
- English
- 8623 Words
- Ages 16 and up
- 129
Attelus and Kalakor didn't bother with stealth or subtlety, and the Space Marine led the way as they stepped out of the corridor and onto the hangar's catwalk. Instantly las and solid shots rained against Kalakor's power armour, and Kalakor raised his bolter and replied in kind. Attelus slipped past Kalakor and, in a split second, took in his surroundings. The docking bay was now crawling with dozens of cultists and guardsmen. Two huge, hunched, horned daemons were amongst them, standing head and shoulders taller than any of the Resurrected. Grinning, Attelus smashed aside a few shots and vaulted over the handrail. His sword sliced through one unlucky cultist from head to the groin as he was in mid-fall. Attelus landed into a kneel then lunged across six metres to cut through the chest of a guardsman as he was raising his lasgun. The throne agent whipped out his foot in a hook kick which sent the corpse's upper half flying and spinning, then smashing into the skull of a charging cultist who collapsed and crashed into a guardsman beside him. He laughed and dashed aside a withering hail of shots that followed him as he continued to sprint. A cultist stepped into his path; a chainsword held ready. Attelus slid into a kneel, and the chainsword swing, which was meant to tear through his torso, passed over his head. Attelus gutted the cultist with a horizontal cut, darted onto the screaming cultist's flank, then onward, so the rounds raining in his wake tore the heretic to shreds. He charged for the enemy flank, a Marangerian trooper roared at Attelus, stabbing with a bayonet. Attelus sidestepped, then bisected the Maragerian's skull with a downward, diagonal stroke. A cultist let out an enraged screech and came at Attelus, but before Attelus could counter the cultist's stabbing combat blade, the bastard's head exploded in a haze of red and sent spinning back, the neck spewing out a thick tendril of blood. Attelus back-pedalled a Velrosian sergeant's whirling chainsword, then his sword parried through a swinging lasgun. Attelus sent a side-kick that bashed in the last guardsman's face. Attelus' backswing then opened the sergeant's throat. He carried his slash into a 180-degree arc that sliced through the elbows of a cultist as he was in the midst of a wild overhead chop. A thrusting bayonet made Attelus duck, then as the enemy guardsman was about to swing out the butt of his lasgun Attelus kicked him under the jaw with his boot knife; Attelus pulled his foot out and kicked the man back into his ally. Attelus blocked a slashing axe, then weaved beneath another cutting chainsword. He then impaled the axe-wielding cultist through the skull, pulled out his blade, then sliced straight diagonally from the shoulder to hip of the guardswoman sergeant with the chainsword. A split second later, one of the daemons burst through its Resurrected allies; it snarled and, with a sword as long as it was tall, smashed out a downward, diagonal strike. Attelus danced back of it, then ducked its huge reverse swing. The second daemon pushed past the first's left and swung down vertically. Attelus dashed out of its path, and the black, hazed with blood-red blade hit the deck with a deafening clang and smashed in some of the steel. "Get out of the way," Kalakor said over the vox, and Attelus started darting toward the stairs. Two frag grenades clanged at the daemons' clawed feet and exploded. It sent them and the six nearest Resurrected flying. Attelus sprinted up the stairs while drawing his autopistol from its chest holster and stood beside Kalakor. "You are a fool," said the Raven Guard as he fired bolter round after bolter into the enemy horde, which seemed to grow and grow. "Why did you abandon cover and an elevated position?" Attelus took cover behind the marine and added his piddling fire to Kalakor's roaring deluge. "Mostly out of fun," said Attelus. "And a little so I can be a distraction for you to be able to kill as many of the enemy as possible." Kalakor sighed. "You aim for the mortals; I will take care of the Bloodletters." "Bloodletters?" said Attelus while sending a cultist cracking, bouncing down the stairs with around to the chest. "Is that what they're called?" With incredible speed, Kalakor ejected his empty clip and reloaded. "You are a part of the Inquisition, but you do not know what those daemons are named?" Attelus shrugged as he darted back from a brief fusillade. "We're Ordo Hereticus; the daemonic isn't our speciality. I do know that they are in the service of the blood god, though." "But you still ally with Xenos, despite the fact that you are not Ordo Xenos, but the alien is not your speciality, either." Attelus said nothing, just cut down a guardsman as he was starting to advance up the stairs. His vox bead beeped. "We're about to enter the city," said Darrance. "Get ready for-" "Yes, yes," said Attelus. "Evasive manoeuvres, we know." "Hold on to me," said Kalakor as he magneti [more]
Keywords: warhammer, 40k, warhammer 40k, fanfic, inquisition, inquisitor, space marine, action, 40000, khorne, cult, chaos, imperial guard, war, badss
For Free
Petra Peuleke
Versunken
- Short Story
- German
- 466 Words
- Ages 12 and up
- 67
- 2
Wikipedia:
Am 21. September 1957 geriet die Pamir etwa 600 Seemeilen (ca. 1.100 km) westsüdwestlich der Azoren in den Hurrikan Carrie, der sich nach dreifacher Richtungsänderung in den vorhergehenden Tagen plötzlich direkt aus westlicher Richtung auf die Pamir zubewegte.[101] Noch bevor genügend Segel geborgen waren, erreichte der Hurrikan gegen 09:30 Uhr Ortszeit (12:30 Uhr Greenwich-Zeit/GMT) das Schiff. Der Wind nahm so stark zu, dass einige Segel rissen und die übrigen nur noch von der Stammbesatzung von den Rahen abgeschnitten („geschlachtet“) wurden. Um 10:36 Uhr gab Funkoffizier Wilhelm Siemers von der Position ♁35° 57′ N, 40° 20′ WKoordinaten: 35° 57′ 0″ N, 40° 20′ 0″ W | | eine Dringlichkeitsmeldung, in der er andere Schiffe um ihre Positionsangabe bat. Die Pamir hatte zu diesem Zeitpunkt bereits ca. 30° Schlagseite nach Backbord („links“) und trieb ohne Segel im Sturm. Um 11 Uhr und 11:04 Uhr[102] setzte die Pamir SOS-Rufe ab. In diesen und den späteren Funksprüchen identifizierte sich die Pamir als „fourmast bark“ (dt.: Viermastbark), weil alle Funksprüche auf Englisch abgegeben wurden. Das wurde mindestens einmal als foremast broken (dt.: Fockmast gebrochen) missverstanden und führt bis heute zu irrtümlichen Darstellungen, denen zufolge dem Schiff einer oder gar mehrere Masten[103] gebrochen seien.[98] Tatsächlich aber standen auf der Pamir bis zuletzt alle Masten. Das Schiff hatte laut Funkspruch um 11 Uhr allerdings alle Segel verloren und 35° Schlagseite. Währenddessen gingen bei Windgeschwindigkeiten von 130 km/h die Wellen 12 bis 14 Meter hoch. Der Kapitän ordnete an, Schwimmwesten anzulegen. Die Schräglage der Pamir erreichte 45°, so dass die Rahnocken (Rah-Enden) wiederholt in die hochgehende See eintauchten.[104] Nach einer Funkpause bat die Pamir um 11:54 Uhr in ihrem nächsten SOS-Ruf um Eile, da das Schiff in Gefahr sei, zu sinken („danger of sinking“).[105] Drei Minuten später funkte sie, dass das Schiff „Wasser mache“ („now speed ship is making water danger of sinking“,[105] etwa: „Jetzt beeilt Euch, das Schiff macht Wasser, Gefahr des Sinkens“).
Letzte Position der Pamir
♁35° 34′ 12″ N, 40° 12′ 0″ W
[more]
For Free
Chandan Sengupta
Ethics of Shri Madbhagvadgita
Analysing Relevance of Shri Madbhagvadgita in Present day context
- Philosophy
- English
- 30190 Words
- Ages 16 and up
- 21
Absolute knowledge cannot wait for any material set up to make it evident. It is more confluent than compared to the flow of water, faster than the speed of light and more luminous than the strong lumens like those of stars. It can make people understand things with clear apprehension of putting forth the segment of acts and conducts for the purpose of offering an understanding of facts, figures, events, mechanisms and confluence of information.
Due to lack of such absolute knowledge people often fail to understand the exact reasons behind the manifestation of the supreme power through different living forms. This supreme power resides with identical potential in all the individuals starting from tiny bacteria up to a giant whale. They all combine their own creations with the help of materials present in the real world in an absolute combination of certain format to give a prominent existence. Such individuals can move through the world with certain objectives of leading an assigned life until and unless a band of disintegration of such organic coordination breaks down due to death. In other words, energy is the only super natural power which regulates different components of nature on their way towards creation or destruction of any living form. Absolute knowledge only can make us understand the aspects related to creation and destruction. In Indian philosophy, natural components got the name Prakriti and the super natural component got the name Purush. Communion of Prakriti and Purush makes the creation possible. If such principle is true then it must be evident even at the atomic level of creation; at that level nuclear energy binds the positively charged protons along with some other uncharged particles to make the creation of nucleus possible. Electrons are bound to remain restricted around that empowered core. This mystery of creation signifies the claim of Veda regarding existence of Super Natural Power (BRAHMA)[1] in all the naturally occurring articles, “Brahma is at all places, within all particles and inside all the beings.”
It is the knowledge which becomes visible through various actions of a person. It is that knowledge which differentiates a sage from a beggar; it integrates individual apprehensions to materialize each minute actions of that individual for the purpose of defining the final destiny of that person amidst the turmoil of social interactions. That knowledge becomes the guiding force behind senses and guides those senses to assimilate the signals of desired types. Desire is the state of mind which makes the individual apprehension secure within the realm of human actions. It also ensures proper coordination of all the impulses of senses to materialize the desired action. Those guiding force even acts during the process of inter –personal communication. It enables a person to go for accepting or rejecting any communication bands duly offered by some other individual. Differences of such bands of sensual communications can define the enemy and friends from amongst the group of people came in contact. Distinction of friend and enemy creates a varying matrix of inter-personal communication inflicted with protecting or smashing any individual.
Knowledge increases with corresponding increase in the experiences and mind power. In due course of time mind becomes the store house of all the information and avails them to be used by the analytical segment of the brain as per need. Here lies the mystery of success and failure of coordinated senses. It can even define the proper culmination of both the components of the intellect for making the materialization of senses possible. Person with such kind of balanced mind and intellect can speak perfectly, can listen properly, can go for smelling and tasting right things and even can feel the presence of some wealthy impulses in the surrounding.
Any sort of imbalance of mind and intellect can make the senses unfit for materializing any perfect action. The Gita points out the essence of attainment of such kind of balances of mind and intellect for regulating senses and making them fit for right and timely actions.
[1] Section 14, Chapter 3, Upanishad:
Sarvam khalvidam brahma, tajjalaniti santa upasita, atha khalu kratumayah puruso yatha-kratur-asmin-loke puruso bhavati tathetah pretya bhavati, sa kratum kurvita.
Meaning: Brahma is the only supreme power. Everything comes from that, sustain in that and finally returns to that, is the only power which empowers us all. People study all the aspects related to what dissolves in that, comes from that and works due to that. [more]
Keywords: Gita, Philosophy, Humanity, Nonviolence, Religion, Yoga, Meditation, Peace
$5.99