Task 1: 1. Lubrication system 2. Moving parts 3. Heat and wear 4. Cooling 5. Lubricates 6. Collects 7. Particles 8. Oil filter 9. Leak out 10. Amount 11. Checking 12. Dipstick 13. Friction 14. Increase 15. Become damaged 16. Changing 17. Thin 18. Impurities 19. Efficiently 20. Assembled Task 2: 1. Oil pressure switch, oil pump, relief valve, oil strainer, relief valve for oil cooler, oil filter, oil cooler, main gallery, oil pan, oil level gauge 2. Static seals and dynamic seals 3. Paper filter, or it may contain oil 4. Wire gauze, nylon mesh, cotton, felt, pads, paper or cellulose sheets Task 3: 1
.........................................................................................5 5.Kokkuvõte................................................................................................................................6 6.Kasutatud allikad......................................................................................................................7 1. 2 2. Sissejuhatus Hõõrdkeevitus (FSW Friction Stir Welding) on suhteliselt uus liitmise tehnoloogia, mille leiutas ja patendeeris aastal 1991 Suurbritannia keevitusintituut TWI (The Welding Institute). Hõõrdkeevitus võimaldab keevitada elemente, mille suhtes kehtivad ranged survetugevus- ja tihedusnõuded. Nii on võimalik toota laiu paneele, mille valmistamine pressimise teel on raske või isegi võimatu, näiteks rongide katused või seinad. Elementide ühendamine leiab aset tahkes olekus. Alumiiniumi hõõrdkeevituse teel
Hõõrdejõud Hõõrdejõud on vastupanu vastassuunalisele liikumisele, mis tekib kahe pinna kokkupuutel. Kuna hõõrdumine aeglustab liikuvat objekti, kutsutakse seda ka takistusjõuks. See erineb aktiivjõududest, mis põhjustavad objektide liikumise aeglustumist või suunamuutust. Hõõrdejõu olemus Hõõrdejõu tekke põhjuseks on kokkupuutuvate kehade aatomite ja molekulide vaheline vastasmõju. Peamiselt on see põhjustatud aatomite koostisse kuuluvate elektronide vastasmõjust. Hõõrdejõud sõltub hõõrdetegurist ja keha massist kuid ei sõltu, nagu tihti ekslikult arvatakse, kehade kookupuutepinna suurusest. Hõõrdetegurit tähistatakse . Universaalne valem nii seisu-, liuge- kui ka veerehõõrdejõu arvutamiseks on F=*m*g, kus F on hõõrdejõud, - vastav hõõrdetegur, m=keha mass, g - raskuskiirendus. Hõõrdejõu klassifikatsioon Seisuhõõrdejõud. Kinnitame puitklotsi külge dünamomeetri konksu ja püüame klotsi dü...
Design AS 2566.2 Buried Flexible Pipelines Part 2 :Installation AS 4041 Pressure Piping Code ASME B31.3 Chemical & Refinery Piping Code ISO 15493 Plastics piping systems for industrial applications -- Acrylonitrile-butadiene styrene (ABS), unplasticised poly (vinyl chloride) (PVC-U) and chlorinated poly (vinyl chloride) (PVC-C) -- Specifications for components and the system Metric series Hydraulic Analysis Darcy Weisbach friction Losses in Pipe factor Losses in fittings Hazen Williams formula Newtonian Fluids Bends and Elbows Non Newtonian Fluids Tees straight through Determine friction factor Tees branch Surface Roughness Pipe Class Reducers Valves Entrances and Exits Velocity
Rita has a coal and she knews what she want next from world. I think that Frank was a little bit alccohol-lover and I do not like that he drank when he works. In this film ,,Educating Rita" I remeber that the best part of that was when Rita`s husband breaks the Wall with a big hammer. But I was reluctant when her husband fund a box of bills. He wants a baby but he do not concidertion with Rita who actually do not want a baby yet, she wants to study. The change in her status causes friction between her and her husband. I really like the movie because that is different than other dramas oder comedies. There are a new view and I have never seen that kind of films earlier. I would suggest ti see that film for all ages of people because the movie have a deep thought and when we see it there are soo many dissimilar emotions.
gasoline engine and an electric motor that takes care of acceleration. 3. The batteries of the electric motor recharge automatically by harnessing the kinetic energy produced during braking. 4. Hybrid car engines produce less emission, give better mileage, idle less, and are fuel efficient. Why to purc has e a hybrid c ar? 5. The aerodynamic design reduces drag and the tires are made of a special rubber that reduces friction. 6. The battery has high capacity and is made of nickel-metal- hydride. The battery can run the hybrid when called for. 7. The power-train technology enables using two power sources and enhances fuel efficiancy. 8. There are many choices. You can have a hybrid from Honda, Ford, Toyota, GMC, and Chevrolet. 9. If your transportation of choice is a hybrid then the US Government will applaud your choice by giving you significant tax breaks. (USA only) Hybrid te c hno lo g y
the DC motor is used the frequency about 25-30 kHz (avoid noises/discomfort to human). Analyze the advantages and disadvantages of PWM systems: First advantage: This system can reach a very high efficiency without wasted heating loss. Second advantage: This always reaches the full supply voltage, then will produce full opening torque and can overcome easily the internal motor resistances, friction and loads. Third advantage: The PWM circuit is small, cheap, can be used to control a wide range of loads. It doesn’t need expensive variable electronic devices. Main disadvantage: PWM circuit is more complicated with high level of complexity. Second disadvantage: PWM causes vibration frequencies and interferes to other radio signals, to other electronic devices as well as to the human comfort.
ahtrilainete süsteem stern wave system different trim dünaamilise tõstejõuga laev dynamically supported ship erikaal specific weight Froude arv Froude number gravitatsiooniline takistus gravity-related resistance hõõrdetakistus frictional resistance hõõrdetegur coefficient of friction koosmõju interaction hürdodonaamiline rõhk hydrodynamical pressure hüdromehaanika fluid mechanics hürdrostaatiline rõhk hydrostatical pressure inertsjõud inertial force isepoleeruv värv self-polishing paint jäätakistus residual resistance jäätakistus ice resistance kaal weight käigulained shipborne waves
· What does a continuous current means non-pulsing · Call the difference of half-bridge and full-bridge dc/dc converters input/output voltage ratio · Why the transformer-isolated converters are used voltage set-up · Why the back diodes are required current reversing · In the steady state mode, the drive has pulsations ripples · In the very accurate drive, the over-speed is 1..10% · The mechanical time constant will be high if Td is low · The friction torque is passive · In the high-efficient electrical drives the overload capacity is high · The counter-torque of the hoist is active · The speed torque relation of a pump is quadratic · The source of the magnetic flux of the motor is permanent magnet · The energy balance is described by Energy conservation law · Which equations are correct P=sW · The angular frequency is 2n/60 2f · The motor torque is equal to P/ TL + Jd/dt · The cheapest and the most reliable is induction motor
A royal judicial body, the audencia, reporting directly to the Spanish crown was created in Mexico City in 1527. .In 1535 Antonio de Mendoza was named the first viceroy of New Spain. The viceroy was the king's representative and as such controlled the bureaucracy (but not the audencia). Military figures in New Spain had important ties to political figures in Madrid and their relationship to the viceroy flucuated. The Catholic Church hierarchy was largely independent of the viceroy as well. Friction and intrigue was constant between these various organizations both in Mexico City and in the outlying areas. During the sixteenth and seventeenth centuries this political/military/judicial/religious system continued virtually unchanged. The degree of local autonomy exercised by different bodies and officials varied greatly but the distances involved between Madrid and Mexico City and within New Spain itself ensured a considerable degree of freedom of
17. What variables the electromechanical characteristics describe? 18. How does the drive effectiveness depend on the overload capacity? 19. How does the drive accuracy depend on the speed range? 20. How does the drive accuracy depend on the speed curve rigidity? 21. Compare the static characteristics of the rigid drive and the soft drive. 22. What is the important feature of the hoist counter-torque? 23. What is the important feature of the friction torque? 24. What machines are subjected to the multi-quadrant operation? 25. When the generator mode of the motor operation is required? 26. What quadrants of the mechanical characteristics are the most significant for the reversing operation? 27. Which variables change their sign in the reversing operation? 28. What is the speed-torque relation of the pump? 29. What is the speed-torque relation of the loading generator? 30. Why is the torque restricted at the very low speed? 1
apart. Near the end of its life, unable to resist the pull of its own gravity, the core of the star collapses to make a black hole. But because the star has so much spin, some of the infalling material resists the tug of the newborn black hole. A swirling disk of material forms around the hole--a maelstrom deep within the doomed star. "Rotation is the name of the game," says Woosley. Without spin, there would be no disk. And without a disk, there'd be no burst. Friction heats the disk, whipping around the black hole thousands of times a second, to 40 billion degrees (22 billion degrees Celsius), while new material keeps cascading in. Moments after the black hole forms, jets of superheated gas blowtorch outward. Each jet may draw its energy directly from the friction in the disk, or from the newborn black hole, via the magnetic fields that link it to its surroundings. Like the original star, the black hole
1 22114/1P50FMG Cowl, clutch 1 2 22361/1P50FMG Plate, clutch lifter 1 3 22362/1P50FMG Gasket, clutch lifter plate 1 4 22322/1P50FMG Sleeve, clutch drive gear outer 1 5 22622/1P50FMG Bush, primary drive gear 1 6 22340/1P50FMG Plate set, clutch 2 7 22331/1P50FMG Disc I, clutch friction 1 8 22381/1P50FMG Disc II, clutch friction 1 9 22111/1P50FMG Disc, clutch 1 10 22371/1P50FMG Spring, clutch 4 11 22375/1P50FMG Spring, clutch damping 4 12 22860/1P50FMG Pusher comp., clutch 1 13 22376/1P50FMG Snap ring, clutch 1
1 22114/1P50FMG Cowl, clutch 1 2 22361/1P50FMG Plate, clutch lifter 1 3 22362/1P50FMG Gasket, clutch lifter plate 1 4 22322/1P50FMG Sleeve, clutch drive gear outer 1 5 22622/1P50FMG Bush, primary drive gear 1 6 22340/1P50FMG Plate set, clutch 2 7 22331/1P50FMG Disc I, clutch friction 1 8 22381/1P50FMG Disc II, clutch friction 1 9 22111/1P50FMG Disc, clutch 1 10 22371/1P50FMG Spring, clutch 4 11 22375/1P50FMG Spring, clutch damping 4 12 22860/1P50FMG Pusher comp., clutch 1 13 22376/1P50FMG Snap ring, clutch 1
Phonetics and Phonology. Mid-term 1. Terminology. Testi tuleb kindlasti see tabel! Nasal, Bilabial: m Nasal, Alveolar: n Nasal Velar: Plosive, Bilabial: p; b Plosive, Alveolar: t; d Plosive, Velar: k; Affricate, Post-Alveolar: t; d Fricative, Labio-dental: f; v Fricative, Dental: ; Fricative, Alveolar: s; z Fricative, Post-Alveolar: ; Fricative, Velar: x Fricative, Glottal: h Approximant, Alveolar ja Post-Alveolar: Approximant, Palatal: j Approximant, Velar: w Lateral, Alveolar: l Phonetics and Phonology. Mid-term 1. Phonetics the general study of the characteristics of speech sounds: how they may be "strung" together to form meaningful units how they are produced It studies: how to describe the speech sounds in the languages of the world what these sounds are how they fall into patterns how they change in different circumstances Acoustic phonetics the study of the physical properties of the ...
CITATION FORM The citation form of the lexeme is the form that is employed to refer to the lexeme; it is also the form that is used for the alphabetical listing of lexemes in a conventional dictionary. In English, the citation form of a noun is the singular: e.g., mouse rather than mice. For multi-word lexemes which contain possessive adjectives or reflexive pronouns, the citation form uses a form of the indefinite pronoun one: e.g., do one's best, perjure oneself. In many languages, the citation form of a verb is the infinitive: French aller, German gehen, Spanish ir. In English it usually is the full infinitive (to go) although alphabetized without 'to' (go); the present tense is used for some defective verbs (shall, can, and must have only the one form). In Latin, Ancient Greek, and Modern Greek (which has no infinitive), however, the first person singular present tense is normally used, though occasionally the infinitive may also ...
Vaatamata sellele sai Ling toetust mõjuvõimsatelt klientidelt ning ta oli võimeline oma teadmisi edasi õpetama. 19. sajandi lõpul suutis Hollandi füüsik Johann Mezgner (1839-1901) esitleda massaazi edukalt kui meditsiinilist meetodit, seejuures kasutades tänaseni säilinud tehnikate prantsuskeelseid nimetusi. (Moyer jt, 2004; Field, 1998) 4. Massaazitehnikad Eristatakse väga mitmesuguseid massaazivõtteid ja tehnikaid, kuid enamlevinumad nimetused pärinevad prantsuse keelest friction (hõõrumine), effleurage (silumine), petrissage (sõtkumine), tapotement (löökvõtted) ja vibration (vibratsioon) võeti kasutusele 19. sajandi lõpupoole Hollandi füüsiku Johann Mezgner`i poolt. Tänapäeval on lisandunud mõned alavõtted, nagu pigistamine ja raputamine. (Duimel-Peeters, 2005; Moyer jt, 2004) Teraapia ülesehitus pole lõplikult fikseeritud, kindlalt pole ka määratletud, kui palju kordi peaks mingit võtet teostama, et saavutada soovitud tulemus
center of its blades and flings it outward as it spins. In order to handle speeds of up to 150,000 rpm, the turbine shaft has to be supported very carefully. Most bearings would explode at speeds like this, so most turbochargers use a fluid bearing. This type of bearing supports the shaft on a thin layer of oil that is constantly pumped around the shaft. This serves two purposes: It cools the shaft and some of the other turbocharger parts, and it allows the shaft to spin without much friction. One of the main problems with turbochargers is that they do not provide an immediate power boost when you step on the gas. It takes a second for the turbine to get up to speed before boost is produced. This results in a feeling of lag when you step on the gas, and then the car lunges ahead when the turbo gets moving. SUPERCHARGER Adding a supercharger is a great way to achieve forced air induction.A supercharger is any device that pressurizes the air intake to above atmospheric pressure
214. Force- jõud, vägi 215. Forefront- esirind, esiplaan 216. Foremost tähtsaim 217. Forerunner- eelkäija 218. Form a joint venture- moodustada ühisettevõte 219. Former- endine 220. Forms- vormid 221. Founder of classical economics klassikalise majandusteaduse asutaja 222. Franchise- ainumüügiõigus 223. Franchisees- ainumüüja 224. Fraud- pettus 225. Fraught pingeline, tulvil 226. free standing blocks - ilma aedadeta asuvad majad (paneelmajad) 227. Friction huvide vastuolu 228. Frightening- kardetud 229. From scratch- nullist 230. Fulfilment- täitumine, rahuldus 231. fundamentally the same - enamjaolt ühesugused 232. Further- täiendavalt G 233. Gadget- tööriist, väike asjandus 234. Gains- kasumid 235. Gap- lõhe 236. Genuine- algupärane, puhas, tõeline 237. Gesture- ennustama 238. Grades- klass, klasside 239. Grand- suur, tohutu, suursugune 240. granite setts - graniit sillutis 241
the period of waves. Distribution of energy inside a wave Nearly 95% of the energy of waves is locates in a depth, shorter than a quarter of the wavelength 9 Nearly 95% of the energy of waves is locates in a depth, shorter than a quarter of the wavelength Distribution of energy inside a wave Power loss by moving of waves into shallow water Due to friction with particles of the seabed there is a loss in energy of the waves. This effect becomes significant if a wave reaches shallow waters with a depth shorter than a quarter of the wavelength. The power loss can be tenth of watts per meters of crest length by traveling one meter over the seabed. The formation of breaking waves by running up the beach causes an additional power loss due to dissipation effects caused by effects of turbulence. Concentration effects due to refraction
The following characteristics are the mechanical ones: speed-torque. The multi-quadrant operation is typical for car. At the very low speed the torque is less than rated. In the reversing operation, the following variables change their sign: pakuks torque ja speed The speed range of the high - efficient electrical drives is high. In the generator mode, the motor brakes. The counter-torque of the hoist is active/reactive/inductive (pakuks active) The friction torque is passive/reactive/inductive (pakuks reactive) In the case of high quick action tauT is short ja taue is short In the case of low quick action the overtorque is 0. The overshot of the stable system - no overshoot. The usual time response processes are step (äkki peaks miskit veel olema?) In the accurate drives, the accuracy range is small. How does the drive accuracy depend on the speed range? the speed rigidity? the overload capacity? The higher, the better.
Ulatuslikult on levinud volframelektroodiga keevitamine päripolaarse alalisvooluga. Lisametallina kasutatakse vasest M1, M2 ja M3 vardaid. Sulavelektroodiga keevitatakse samuti päripolaarse alalisvooluga. Elektroodid tehakse vasktraadist (M1) või pronkstraadist. Gaaskeevitust rakendatakse vase puhul kõige enam. Kuni 5 millimeetri paksuse vase keevitamisel on lisametalliks vask M1, M2 või M3. 8. Hõõrdkeevitus Hõõrdkeevitus (FSW Friction Stir Welding) on suhteliselt uus liitmise tehnoloogia, mis leiutati aastal 1991 TWI (The Welding Institute) poolt. Protsess toimub tavaliselt temperatuuril 0,8 materjali sulamistemperatuuri ning liitmine saavutatakse piltlikult sepistamisega. Liidetavad materjalid on keevitamise jooksul jäigalt kinnitatud rakistusega. Keevitamine toimub silindrikujulise kulumatu tööriistaga, mille otsas on väike sond (probe). Protsessi juures pole tarvidust täitetraadile ning kaitsegaasile
Life Early jobs He was born into a working class family on Long Island, New York. Completed his institutional education at the early age of twelve and worked as an office boy, a printer's apprentice and a wandering school teacher. He then became the editor of two local newspapers and began writing poetry and short stories. In the late 1840s he spent a brief period as an editor of a newspaper in New Orleans, which ended when his opposition to slavery became an issue of friction with the owners. He travelled through the South and Midwest and was deeply impressed by the vastness of the Am landscape and the variety of its people. He was also influenced by the work of the poet Ralph Waldo Emerson and the revolutionary ideas of the American Transcendentalist movement. Writing poetry Not much is known of what he did in the early 1850s apart from the fact that he returned to New York and started writing poetry. In 1855 Leaves of Grass, a
group was scheduled to perform at the MTV Europe Music Awards. According to the documentary For the Record, he stated that he was unhappy with his musical ideas not being taken seriously by lead singer Barlow and Nigel Martin-Smith, because his desires to explore more hip hop and the rap genre conflicted with the band's usual ballads. Barlow explained in interviews that Williams had given up trying to offer creative input and merely did as he was told. As well as Williams' friction with the management of the band, Jason Orange had problems with his increasingly belligerent behaviour, his lack of interest in performing, and his frequent habit of missing the band's rehearsals. Both Orange and Barlow confronted Martin-Smith about the internal conflict, because they did not want him dropping out while touring and before any possible future touring of America, which never took place. During
Asia and Caucasus, doubling local pop. Who are these? Skilled workers, accountants, doctors. Continued in this trajectory in Tashkent. In contrast, Sephardi Js less educated, menial labor, shop keepers. 2 J communities, distinct ethnically, denominationally, class (esp), basic identity. See selves as SU Js. Bukharin, Georgian, mtn Js see themselves as Js; conn to SU regime is looser, haven't benefitted from SU authority. Live in diff parts of city or outside of it. Almost no contact, no friction. Ashkenazis, like going to zoo to see Bukharin Js. Bukharins see as uppity, not going to marry. Effect Js cease to be factor in policy decisions. Js had been near other Euro powers. Not as important. Important for policy from 45 onwards in terms of domestic needs. Extremely critical 1990s. Changed demo landscape Caucasus, Far East, Central Asia. Not just Js relocated to these areas. Do we go back to familiarity (likely unfamiliar)
The Fan The woman stands with her back to her partner. She bends her knees and rests them on the edge of a chair or stool and crosses her arms on the back of the chair or on the stool to support herself. The Super 8 She lies on her back with her legs open and a pillow under her bum to make penetration easier. He lies over her, supporting himself with out-stretched arms. She puts her hands on his hips or round his back to support his thrusts. She arches up to meet his movement where the friction will soon hot up! Ascent to Desire Your man may need some arm muscles to pull this one off - so if he's lacking in strength, steer clear. He stands with feet firmly on the ground hip width apart, knees slightly bent. She stands in front of him. As he lifts her onto him, she wraps her legs around his hips. It may be useful to start off sitting on the bed and then turn round once lifted so she can put her feet down and help support the lift with the edge of the bed. The weight should help
ref to temperature linked to aspect; slope; ref to rainfall or irrigation; time period; AVP; e.g. tillage, method of cultivation, degree of compaction AVP; e.g. previous use of land max 3 [3] 73. (i) A cartilage; B synovial fluid; 2 (ii) reduces friction / stops bones rubbing together; R no friction shock absorber / cushions bone; keeps (joint) lubricated / AW; (fluid) provides nutrients to, chondrocytes / cartilage; A cells 3 max [5] 74. 1 cone cells absorbs light; 2 iodopsin changes form / AW; 3 ref to three different types of cone; 4 hyperpolarisation / –40mV to –70mV;
plug threads and the seating area in the 8 The spark plug gap is of considerable the caliper and check the thickness of the cylinder head are clean, dry and free of carbon. importance, as if it is too large or too small, friction material of the disc pads (see 12 Screw the plugs in by hand initially and the size of the spark and its efficiency will be illustration). If the material has worn down to then fully tighten to the specified torque. If a seriously impaired
with my older sister, Tilly. I think it's 2 1 got a lot to do with my temperament I 3 1 not 7 to 2 ... she didn't expect to hate confrontation and avoid it like the 2 their 8 Although 3 plague. Having said that, there did use 3 couldn't 9 under 4 ... if you'd like to to be a little bit of friction between us. 4 for 10 as 5 When she was younger she begged and begged our mum for a baby sister 5 at 11 when 6 ... I don't want to to play with but when I came along 6 up 12 would 3 1 will 4 should
tank. Two centrifuges are required to be used in a large engine. The first acts as a purifier to remove water, soluble, sludge etc while the second acts as a clarifier to remove solids. From the service tank the oil flows to one of the electrically driven booster pumps. From there it is fed through the preheater, and the fine filter to the engine fuel pumps. LUBRICATING SYSTEM When two solids are in contact and move in relation to each other, there arises a resistance to this movement known as friction, i.e. a force is created which attempts to prevent such movement. The frictional resistance can be reduced considerably when a fluid layer is introduced between the two surfaces moving against each other. Correct lubricating of any engine is necessary for satisfactory operation, in that the supply of lubricating oil serves the following purposes. 1. Lubrication of bearings, cylinders, piston rings and other moving parts of the engine. 2
This is a post-refereeing final draft. When citing, please refer to the published version: Cohen, S.A. (2011). Lifestyle travellers: Backpacking as a way of life. Annals of Tourism Research, 38(4), 1535-1555. DOI: 10.1016/j.annals.2011.02.002 LIFESTYLE TRAVELLERS: Backpacking as a way of life Scott A. Cohena Bournemouth University, United Kingdom a corresponding author: School of Tourism, Dorset House, Talbot Campus, Poole, Dorset, BH12 5BB, United Kingdom. Tel: +44 1202 961261 Fax: +44 1202 515707 Email: [email protected] ABSTRACT Scholarship on backpackers speculates some individuals may extend backpacking to a way of life. This article empirically explores this proposition using lifestyle consumption as its framing concept and conceptualises individuals who style their lives around the enduring practice of backpacking as ‘lifestyle travellers’. Ethn...
information in project-based delivery systems (the construction industry) is crucial for successful project outcomes. In general (this applies to both contracting approaches), if a contractor has made a bid under the actual estimated price, what frequently happens is that the contractor abuses the change process, relying on error- and omission-ridden design documentation. For example, the contractor uses cheaper and lower quality materials, which very often leads to friction and disputes between the owner and the project team. 13 In the first chapter of the "BIM Handbook" (Eastman, Teicholz, Sacks, Liston 2008), the authors gave a critical assessment of existing DB and DBB contractual models and finally proposed the kind of model which would best support the implementation of BIM.
INTENSIIVKURSUS ”TOOTMISE AUTOMATISEERIMINE” Intensiivkursus kuulub projekti: „Energia- ja geotehnika doktorikool II” tegevuskavasse Ins. Viktor Beldjajev TÄITURMEHHANISMID Loengumaterjalid Tallinn 2010 Sisukord Tähistused ................................................................................................................................. 5 1. Sissejuhatus ........................................................................................................................... 6 2. Täiturmehhanismide olemus ............................................................................................... 7 2.1. Täiturmehhanismide klassifikatsioon .................................................................................. 7 2.2. Automaatsüsteem ....
750 0 C juures 2 tundi. Sel viisil valmistatud materjalis on pidev voolujuhtiv karkass, millega tagatakse hea elektrijuhtivus, piisav materjali tugevus ja head liugeomadused. (täiendakse lähiajal) 74 Soovitatav kirjandus 1. I. Kleis Triboloogia lühikursus Tallinn 1996 2. P.Kulu, J.Kübarsepp, A.Laansoo, J.Pirso. L.Valdma. Metalliõpetus ja metallide tehnoloogia II Metallide tehnoloogia 2. TTÜ kirjastus. Tallinn 2001 3.A.D. Sarkar. Friction and wear. Academic Press. 1980 4. G.W. Stachowiak, A.W. Batchelor. Engineering Tribology. (Tribology series, 24) Elsevier, 1993 D.N. Garkunov. Tribotehnika M. Masinostroenie, 1985 (vene keeles) 75
is controlling it. There is no indication of whether the device being controlled is actually doing what it is told to do. An example would be the vibrating motor in a pager or cell phone. Neither the user nor the instrument cares if the motor speed varies by 10% or 20%. So the microprocessor can just send an on/off signal to the motor—no feedback about the actual speed is needed. The speed the motor actually runs at will depend on the motor friction, battery voltage, and the condition of the motor brushes. In most microprocessor control applications, whatever is being controlled will need to be measured to insure that the control action actually did what was expected. This requires feedback from the controlled device to the micro- processor. The remainder of this chapter will address feedback control systems. Negative Feedback and Control Figure 5.1 shows a simple control system—an opamp. The opamp has very
Smoke Generators tions of these generators depends also on thermal degradation and partial oxidation of Smoldering-Type Generators woody material. However, the temperature In primitive, usually small-scale or artisan needed to initiate the process results from processing, the smoke is produced in a fire- friction of a log pressed at about 1 kg/cm2 place directly below the meat, which is hung against a rotating drum or disk (Rasmussen above it on spits or laid on a mesh. A fire is 1956). Access of air is possible due to perfo- Smoking 241 rations in the rotor. The temperature in the chips of low mesh size is kept below 400°C friction zone may be controlled by adjusting to prevent self-ignition
how he took me just so long as he did. I whimpered as he shoved into me, my body struggling to accommodate the wonderful fullness I craved. Yanking my hips to meet his powerful thrusts, Gideon battered my tender sex with that brutally thick column of rigid flesh, his gaze dark and possessive, his breath leaving him in primitive grunts every time he hit the end of me. A trembling moan left me, the friction of his drives stirring my never-sated need to be fucked senseless by him. Only him. A handful of strokes and his head fell back as he gasped my name, his hips rolling to stir me into a frenzy. "Squeeze me, Eva. Squeeze my dick." When I complied, the ragged sound he made was so erotic my sex trembled in appreciation. "Yeah, angel...just like that." I tightened around him and he cursed. His gaze found mine, the stunning blue hazed with sexual euphoria
founding and selling exercise equipment manufacturer Nautilus, which was estimated to have grossed $300 million per year at its zenith. He had no patience for fuzzy thinking in elds that depended on scienti c clarity. In response to researchers who drew conclusions about muscular function using electromyography (EMG), Arthur attached their machines to a cadaver and moved its limbs to record similar "activity." Internal friction, that is. Jones lamented his eeting time: "My age being what it is, universal acceptance of what we are now doing may not come within my lifetime; but it will come, because what we are doing is clearly established by simple laws of basic physics that cannot be denied forever." He passed away on August 28, 2007, of natural causes, 80 years old and as ornery as ever. Jones left a number of important legacies, one of which will be the cornerstone of everything
who had abused his tendency to reciprocate a gift until his response had soured to a refusal. No matter whom you find more blameworthy, the lesson is clear. We will always encounter authentically generous individuals as well as many peo- ple who try to play fairly by the reciprocity rule rather than to exploit it. They will doubtless become insulted by someone who consistently rejects their efforts; social friction and isolation could well result. A policy of blanket rejection, then, seems ill advised. Another solution holds more promise. It advises us to accept the offers of others but to accept those offers only for what they fundamentally are, not for what they are represented to be. If a person offers us a nice favor, let's say, we might well accept, recognizing that we have obligated ourselves to a return favor sometime in the future
Yardley's apartment was on the top floor. All external connection with the government was cut. Rent, heat, office supplies, light, Yardley's salary of $7,500 a year, and the salaries of his staff were paid from secret funds. Though the office was a branch of the Military Intelligence Division, War Department payments did not begin until June 30, 1921. One of the organization's first assignments was to solve the codes of Japan, with whom friction had been growing. Yardley, in an access of enthusiasm, promised the solution or his resignation within the year. He regretted his impetuousness as soon as he plunged into the task, for he almost foundered in the Oriental intricacies of Japanese plaintext, to say nothing of codetext. After some preliminary study, assisted by Livesey, who had a great aptitude for languages, he ascertained that the Japanese employed a watered-down form of their ideographic writing
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