Leidsid 33 sarnast õppematerjali, mis on seotud failiga "Microcontroller homework 5". Need materjalid aitavad sul teemat sügavamalt mõista.
control, error, integral, bang, change, load, heat, proportional, respond, term, takes, gain, between, signal, terms, period, changing, increase, homework, scheme, differences, states, similar, these, based, measure, fast, rate, gives, size, allows, varying, still, accumulation, errors, parameter, settled, delays, occur, metal, changesRead Chapter_5_Output_Control_Methods.pdf Question 1 (10 marks) Draw a PID control scheme and write down an equation to describe the PID control. Compare the differences between the “bang-bang“ control and proportional control. What are the functions of Integral and Derivative terms in the PID equation. Solution: Draw a PID control system: (Figure 5.5, page 111) Write down an equation to describe the PID control: (page 111) Compare the differences and the advantages between the “bang-bang“ control and Proportional control: (page 105) “Bang-Bang“ control or ON-OFF control is the simplest control system. It turns ON when the system needs more INPUT and tuns OFF if the system doesn’t need INPUT any more. The INPUT is similar to the PWM square wave (running ON and OFF during the length of the needed INPUT). Bang-Bang control is similar to the PWM input signal
v 3 Sensors 47 Temperature Sensors 47 Optical Sensors 59 CCDs 72 Magnetic Sensors 82 Motion/Acceleration Sensors 86 Strain Gauge 90 4 Time-Based Measurements 93 Measuring Period versus Frequency 95 Mixing 97 Voltage-to-Frequency Converters 99 Clock Resolution 102 5 Output Control Methods 103 Open-Loop Control 103 Negative Feedback and Control 103 Microprocessor-Based Systems 104 On-Off Control 105 Proportional Control 108 PID Control 110 Motor Control 123 Measuring and Analyzing Control Loops 130 6 Solenoids, Relays, and Other Analog Outputs 137 Solenoids 137 Heaters 143 Coolers 148 Fans 149 LEDs 151
Diode. 2)Rectifier Diode. 3) A is called Anode and C is called Cathode. An Anode has positive potential and therefore collects electrons in the device. Cathode has negative potential and therefore emits electrons to anode. The symbol looks like an arrow that ponts from the anode to the cathode, and reminds that conventional current flows easily from the p side(anode) to the n side(cathode). BIASING. Forward biasing. If the current in a diode is too large, excessive heat will destroy the device. Even approaching the burnout current value without reaching it can shorten its life. Therefore manufacturer's data sheet specifies the maximum forward current, that diode can withstand. This average current IF is the rate a diode can handle up to the forward direction when used as a rectifier. Another entry of interest in the data sheet is the forward voltade drop UF(max) when the maximum forward current occurs. An usual diode has this value 0.7-2.0V. Diode conducts
oData transparency: In bit and byte oriented protocols, there is a problem if a control character (for ETX (End of Text) ·Same as ETB, only no more blocks will follow. ITB (End of > Differences with HDLC length of protocol field (1B or 2B) byte-oriented protocols) or the start-of-frame flag (for bit-oriented protocols) appears in the actual data
No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permis- sion of OMRON. No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is constantly striving to improve its high-quality products, the information contained in this manual is subject to change without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the informa- tion contained in this publication. v vi TABLE OF CONTENTS
4 lactose binds to repressor; 5 changes shape of protein molecule; 6 unable to bind (to operator); 7 RNA polymerase binds (at promoter) / transcription occurs / genes switched on; 8 AVP; e.g. production of lactose permease / production of beta- galactosidase; max 5 [5] 4. a change in the genetic material; unpredictable / AW; extra detail; e.g. addition / substitution / deletion / frame shift / small part of chromosome / may code for different protein / may code for no protein [2] 5. 1 mark max for general effect of mutations: mutation may give different, amino acid / primary structure; A ref stop codon
This chapter is about solving these common problems that we described as the cornerstones of surveying. When understood and responded to, the cornerstone challenges will assure precision in the pursuit of one’s survey objectives. 1.2 What is a survey? A quick review of the literature will reveal many different definitions of what constitutes a survey. Some handbooks on survey methodology immediately describe the major components of surveys and of survey error instead of giving a definition (e.g., Fowler, Gallagher, Stringfellow, Zalavsky Thompson & Cleary, 2002, p. 4; Groves, 1989, p. 1), others provide definitions, ranging from concise definitions (e.g., Czaja & Blair, 2005, p. 3; Groves, Fowler, Couper, Lepkowski, Singer & Tourangeau, 2004, p. 2; Statistics Canada, 2003, p. 1) to elaborate descriptions of criteria (Biemer & Lyberg, 2003, Table 1.1). What have these definitions in common? The survey research methods
INSTITUTO POLITECNICO DO PORTO INSTITUTO SUPERIOR DE ENGENHARIA DO PORTO CHEMICAL ENGINEERING DEPARTMENT PORTUGAL Marvin Üürike Tallinn University of Technology Faculty of Chemical and Materials Technology Department of Chemical Engineering Estonia ERASMUS PROJECT STUDY OF THE HEAT TRANSFER COEFFICIENT IN A HELICAL COIL Supervisor: Albina Ribeiro Porto 2015 2 Abstract The following work investigates overall heat transfer coefficient of a helical coil and how it changes in different situations. The variables investigated were flow rate inside a submerged helical coil and agitation of the bath. To investigate the change in heat transfer coefficient in different situations, a simple
Steps 1-4 are collectively referred to as planning. Planning comprises selecting organization goals, predicting results under various alternative ways of achieving those goals, deciding how to attain them. Most important planning tool is budget, quantitative expression of a proposed plan of action by management and is an aid to coordinating what needs to be done to implement that plan. The comparison of actual performance to budgeted performance is the control or post decision role of information. Control comprises taking actions that implement planning decisions, deciding how to evaluate performance, and providing feedback and learning to help future decision making. Chapter 2 - Cost terms and purposes. Direct costs of a cost object are related to the particular cost object and can be traced to it in an economically feasible (cost-effective) way. Cost tracing is used to describe the assignment of direct costs to a particular cost object.
5 W / m. Air temperature control is technically feasible easier, so almost everywhere this method is used. High voltage power source HECE requires a source of direct current with voltageabout 30 kV and a current strength about 200 to 300 uA. For good reproducibility of migration time voltage fluctuation should be within ± 0.1%. It should be possible to change the polarity of the source. Under normal conditions, EOF is directed toward the cathode. In this case, the sample injection is carried out from the anode side. If, however, EOF decreased or changed direction, sample injection is made on the cathode side. Since the orientation (input and output) of the capillary
Hoop stress Variation Ring Bending Strain Design Life Creep Toxicity & Taint Stiffness Abrasion Resistance Chemical Resistance Ultraviolet Resistance Modulus Published as Strain rate & loading 2200MPa at 20ºC changes modulus (instantaneous) values Resin properties Value determined change modulus values by ASTM test Modulus affects Standard dog wavespeed in surge bone test events specimen Modulus important in Fixed strain rate buried pipeline design Modulus is needed to Modulus values at determine deflection other temperatures and buckling from and design life are design loads required for design Determination of Modulus
direction – If navigation is restricted, an arrowhead is added to indicate the direction of the navigation Association: Multiplicity • Unspecified • Exactly one 1 • Zero or more (many, unlimited) 0..* • One or more 1..* • Zero or one 0..1 • Specified range 3..7 • Multiple, disjoint ranges 2, 5..7 II Relationships: Dependency • A relationship between two model elements where a change in one may cause a change in the other • Non-structural, “using” relationship III Relationships: Generalization • A relationship among classes where one class shares the structure and/or behavior of one or more classes • Defines a hierarchy of abstractions in which a subclass inherits from one or more superclasses – Single inheritance – Multiple inheritance • Generalization is an “is-a-kind of” relationship What Gets Inherited?
h h 2. What advantages gives equations for vorticity transport and streamfuction in comparison with standard equations for velocity field? In what cases these advantages are often used? Vorticity transport depends on the three Partial differential equations (PDEs) for u, v and p in the "primitive variable" form. Stream function depends on only two Partial differential equations (PDEs) for the scalars and . We win on variables and this is the main advantage. 3. How will change vorticity transport equation if Reynold number will increase? Then Re number increase, it means, that we have turbulent flow. In this conditions Navier-Stokes equation take form of Euler equation. Navier-Stokes equation consist of two parts. One part, that consist volume becomes greater and equation transform into linear. Another part, what consist viscosity, becomes smaller and transform into non-linear term equation. 4. What means asymptotic analysing of the problem?
drugs have been developed stimulating or blocking certain neurotransmitters. Psychologists however, consider the role of neurotransmitters on behavior, but do not solely rely on it to explain behavior. Brain technology has developed rapidly during the past century and is now used extensively in neuropsychology because it provides an opportunity to study the active brain. EEG Prints out brainwaves, registers patterns of voltage change in the brain. PET scan monitors radioactive glucose metabolism in brain. Produces colored maps of brain activity. Can record ongoing activity. fMRI provides 3D pictures of the brain structures, using magnetic fields and radio waves. It shows actual brain activity and has a higher resolution that PET scans. Experiments with animals are still used a lot because this enables psychologists to study specific biological correlates of behavior using invasive techniques (removing
Kálmán Incze 22. Semidry and Dry Fermented Sausages 379 Graciela Vignolo, Cecilia Fontana, and Silvina Fadda 23. Restructured Whole-Tissue Meats 399 Mustafa M. Farouk 24. Functional Meat Products 423 Keizo Arihara and Motoko Ohata PART III. Controls 441 25. Physical Sensors for Quality Control during Processing 443 Marta Castro-Giráldez, Pedro José Fito, Fidel Toldrá, and Pedro Fito 26. Sensory Evaluation of Meat Products 457 Geoffrey R. Nute 27. Detection of Chemical Hazards 469 Milagro Reig and Fidel Toldrá 28. Microbial Hazards in Foods: Food-Borne Infections and Intoxications 481 Daniel Y. C. Fung
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 Refraction is a change of wave direction caused by a change of wave velocity. It is influenced by the depth contours around a coast. The reason for refraction is the interaction of waves and the sea floor. Most of the times waves will not approach the coastline with their crests parallel to the shore. If a wave travels towards a coast at an angle, one end of the crest arrives at the shallow water zone first. As mentioned before shallow water causes a decrease of wave velocity. The end of
. . . . . . . . . . . . . . . .7 Contact breaker points renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Rear brake shoe lining check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Coolant renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 Road test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Crankcase emission control filter renewal . . . . . . . . . . . . . . . . . . . .35 Roadwheel check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 Distributor lubrication - models with contact breaker distributor . .12 Seat belt check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Driveshaft check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 Spark plug renewal .
although the complexity of the chain may vary greatly from industry to industry and firm to firm. Unlike commercial manufacturing supplies, services such as clinical supplies planning are very dynamic and can often have last minute changes. Availability of patient kit when patient arrives at investigator site is very important for clinical trial success. This results in overproduction of drug products to take care of last minute change in demand. R&D manufacturing is very expensive and overproduction of patient kits adds significant cost to the total cost of clinical trials. An integrated supply chain can reduce the overproduction of drug products by efficient demand management, planning, and inventory management. Traditionally, marketing, distribution, planning, manufacturing, and the purchasing organizations along the supply chain operated independently.
situation changed dramatically since some open source tools such as asterisk as well as low-cost VoIP telephone adapters and services become available. In fact, today it is quite common for internet providers to provide their customers VoIP calls at very low cost, if any, in addition to standard xDSL connectivity. The VoIP uses Internet protocol (IP) to send digitized voice traffic over the Internet or private networks. An IP packet consists of a train of digits containing a control header and a data payload. The header provides network navigation information for the packet, and the payload contains the compressed voice data. While circuit-switched telephony deals with the entire message, VoIP-based data transmission is packet-based, so that chunks of data are packetized (separated into units for transmission), compressed, and sent across the network--and eventually re-assembled at the designated receiving end
not at ground potential. Thus the two circuits are no longer isolated from each other, and circuit 1 can introduce interference into the output of circuit 2. If circuit 2 is an audio system, and circuit 1 has large AC currents flowing in it, the interference may be heard as a 50 or 60 Hz hum in the speakers. Question 7 (20 marks) Assume we have a period based measurement system as shown in the below figure. Design the sample clock frequency that we can measure the frequency input with the change from 5 MHz to 5.0001 MHz in 50 counts. Solution: Frequency input at 5 MHz divided by 10000 = 500 Hz. Frequency input at 5.0001 MHz divided by 10000 = 500.01 Hz. Fs Counts read by register at 500 Hz = x1 500 Hz Fs Counts read by proceessor at 500.01 Hz = x2 500.01Hz
University of Pennsylvania "It's about time this book was written. It is a long-overdue manifesto for the mobile lifestyle, and Tim Ferriss is the ideal ambassador. This will be huge." --Jack Can eld, cocreator of Chicken Soup for the Soul®, 100+ million copies sold "Stunning and amazing. From mini-retirements to outsourcing your life, it's all here. Whether you're a wage slave or a Fortune 500 CEO, this book will change your life!" --Phil Town, New York Times bestselling author of Rule #1 "The 4-Hour Workweek is a new way of solving a very old problem: just how can we work to live and prevent our lives from being all about work? A world of in nite options awaits those who would read this book and be inspired by it!" --Michael E. Gerber, founder and chairman of E-Myth Worldwide and the world's #1 small business guru "Timothy has packed more lives into his 29 years than Steve Jobs has in his 51." --Tom
Center. Its first screen display is a bitmapped image of the Sesame Street character Cookie Monster. The first operational Alto computer is completed at Xerox PARC. Traf-O-Data shuts down. It made about US$20,000. Design work is completed on the Micral, the first non-kit computer based on a microprocessor (the Intel 8008). Built in France, the Micral is advertised in the U.S., but is not successful there. The term "microcomputer" first appears in print, in reference to the Micral. Gary Kildall writes a simple operating system in his PL/M language. He calls it CP/M (Control Program/Monitor). Stephen Wozniak joins Hewlett-Packard. Gary Kildall creates PL/M for the Intel 8008, based on PL/I. IBM develops a cheap disk and drive. IBM introduces the IBM 3340 hard disk unit, known as the Winchester, IBM's internal development code name
BARRIERS TO DISTRICT HEATING DEVELOPMENT IN SOME EUROPEAN COUNTRIES Abstract District heating (DH) offers low primary energy demand, high security of supply and small CO 2 emissions. Barriers to DH in the UK, Ireland, France, Romania and the Czech Republic have been compiled through publications and interviews. DH systems require large investments, have negative initial cash flow and long payback time, which obstructs financing. One actor should control DH from source to consumption. If the value chain is fragmented, contracts are required between the links. It increases risks and financing costs, like in the UK and Ireland, where DH is not established. There are few multi- family houses with central heating and it is expensive to build DH networks in built areas. Most French DH systems are operated according to long-term concessions by companies that sell electricity and gas. No strong actor provides unbiased DH support
effect, as in the 2000s, Russia's party system did finally begin to take for, but with a remarkable twist. Following the break of one-party rule, Russia's party system became strongly fragmented - during the 1995 parliamentary elections, 43 parties competed for popular votes (McFault 1996: 90). In the 21st century, the pendulum has moved back, as the intense party- competition has been replaced with a one-party monopoly. During his term in office, president Putin made a series of reforms that reduced the strength of the most influential pre- existing parties and gathered a majority of the leading politicians into a new pro-Kremlin party called United Russia. While most of world's contemporary parties have been established by the politicians who seek either politics or public office, United Russia, as well as its predecessors were created by top politicians with the intention to maximize their already
are also suited to small off-grid applications, sometimes in rural and remote areas, where energy is often crucial in human development.Kenya has the world's highest household solar ownership rate with roughly 30,000 small (20100 watt) solar power systems sold per year. Some renewable energy technologies are criticised for being intermittent or unsightly, yet the market is growing for many forms of renewable energy. Climate change concerns coupled with high oil prices, peak oil and increasing government support are driving increasing renewable energy legislation, incentives and commercialization. New government spending, regulation, and policies should help the industry weather the 2009 economic crisis better than many other sectors. Costs Renewable energy systems encompass a broad, diverse array of technologies, and the current status of these can vary considerably
ccc_tracy_fm_i-xviii.qxd 7/7/03 3:22 PM Page iii CHANGE YOUR THINKING, CHANGE YOUR LIFE How to Unlock Your Full Potential for Success and Achievement B R I A N T R AC Y JOHN WILEY & SONS, INC. ccc_tracy_fm_i-xviii.qxd 7/7/03 3:22 PM Page i CHANGE YOUR THINKING, CHANGE YOUR LIFE ccc_tracy_fm_i-xviii.qxd 7/7/03 3:22 PM Page ii ccc_tracy_fm_i-xviii.qxd 7/7/03 3:22 PM Page iii CHANGE YOUR THINKING, CHANGE YOUR LIFE How to Unlock Your Full Potential for Success and Achievement B R I A N T R AC Y JOHN WILEY & SONS, INC. ccc_tracy_fm_i-xviii.qxd 7/7/03 3:22 PM Page iv
satisfy wants. · Before goods can be distributed or sold, they must be produced. · Within the market model, production and costs of production are reflected in the supply function Production, more specifically, · the technology used in the production of a good (or service) · the prices of the inputs determine the cost of production. Production processes increase the ability of inputs (or resources) to satisfy wants by: · a change in physical characteristics · a change in location · a change in time · a change in ownership At its most simplistic level, the economy is a social process that allocates relatively scarce resources to satisfy relatively unlimited wants. To achieve this objective, inputs or resources must be allocated to those uses that have the greatest value. Consumers or buyers wish to maximize their utility or satisfaction given (or constrained by) · their incomes, · preferences,
Motherboard - the principle printed circuit board assembly in a computer; includes core logic (chipset), interface sockets and/or slots, and input/output (I/O) ports. Printed circuit board (PCB) - a thin, laminated sheet composed of a series of epoxy resin and copper layers and etched electronic circuits (signal, ground and power) Chipset (or core logic) - two or more integrated circuits which control the interfaces between the system processor, RAM, I/O devises, and adapter cards. Processor slot/socket - the slot or socket used to mount the system processor on the motherboard AGP - Accelerated Graphics Port - a high speed interface for video cards; runs at 1X (66MHz), 2X (133MHz), or 4X (266MHz). PCI - Peripheral Component Interconnect - a high speed interface for video cards, sound cards, network interface cards, and modems; runs at 33MHz.
The time at which the phone is allowed to transmit a burst of traffic within a timeslot must be adjusted accordingly to prevent collisions with adjacent users. Timing Advance (TA) is the variable controlling this adjustment. 13. Liiklus ja Erlang (E) ühik Network traffic or data traffic is the amount of data moving across a network at a given point of time. Network data in computer networks is mostly encapsulated in network packets, which provide the load in the network. Erlang (E) on liikluse tiheduse mõõtmise ühik telekommunikatsiooni süsteemides: A=λ*h Kus: λ = keskmine kõnede saabumiste sagedus (the mean arrival rate of new calls), h = keskmine kõne pikkus (the mean call length or holding time), 1/h = teenindus sagedus (service rate), A = liikluse kogumaht Erlang-ides. 14. Mida näitab Erlangi B valem Erlangi B valem Tipptunni kanalite mahu arvutus GSM Kus:
Complete sentences instead of vocabulary lists The purpose of language learning is communication Pronunciation Self correction The goals of the teacher are communication, demonstration instead of translation (the teacher used pictures and pointed to yourself....), they studied complete sentences. It is a teacher-centred method. (T. was the leader, asked questions). The teacher and students were sociable and easy-going. Students´ presentations were approved for several times. When an error occurred the teacher encouraged students to correct it themselves. No native language was used. · Traditional: audio-lingual method http://www.youtube.com/watch?v=Mqd7OdJoLn0 Audiolingual method Communicative language use Automatic use (habit formation) Teacher is a model for imitation Dialogues, drills (substitution, transformation, chain, etc) Right answers are positively reinforced Reading and written work is based on oral work Teacherled interaction Simple forms (everyday language)
................................................. 68 3 LIST OF ABBREVIATIONS AEC – Architecture, engineering and construction BIM – Building Information Modeling CAD – Computer-aided design CAM – Computer-aided manufacturing CATIA – Computer Aided Three-dimensional Interactive Application CFD – Computational fluid dynamics CNC – Computer numeric control DAM – Denver Art Museum FTP – File transfer protocol GC – General contractor HVAC – Heating, ventilating, and air conditioning IT – Information technology IFC – Industry Foundation Classes MEP – Mechanical, electrical and plumbing RFI – Request for information R&D – Research and development SCL – Seattle Central Library SEI – Structural Engineering Institute VD – Virtual design VDC – Virtual design and construction
.........................................................................27 7.8 Measuring electricity..................................................................................................27 SOLAR ENERGY..............................................................................................................27 8.1 Photovoltaic energy...................................................................................................... 28 8.2 Solar thermal heat.......................................................................................................29 8.3 Solar thermal power plants......................................................................................... 30 8.4 Solar energy and the environment..............................................................................30 WIND ENERGY.................................................................................................................31 9
value adding (NVA) effort or waste in our current business models, but in manufacturing the percentage is only 12%. Waste (in Japanese "Muda") is an activity that absorbs resources but adds no 11 value. The cause of this is seen to be related to poor organizational management: the design of the production system, communication and cooperation, and production planning and control. Another study performed by the National Institute of Standards and Technology found that inefficient interoperability between different parties and systems often prevents members of the project team from sharing information rapidly and accurately (Gallaher 2004). Thus, the lack of accurate information and its slow exchange is one of the main reasons for the construction industrys low productivity, while
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