tài liệu autonomous systems

Ngày tải lên: 08/07/2014, 12:20

... system Figure 5: Step Response of second order system 6 “Hands-on” Design of Control Systems “Hands on Design systems refers to directly working with the system to be controlled and trying a variety ... of Mechanical Engineering ME134 Automatic Control Systems Spring 2002 Report Due: Tuesday, February 26 One report per group is required. Control Systems Simulation Using Matlab and Simulink 1 Introduction In ... will be the steady state error of the system defined by e = x final − x ref (6) However, in dynamic systems where the transient behaviour is also important, it becomes important to introduce several...

Ngày tải lên: 12/12/2013, 07:15

Ngày tải lên: 12/12/2013, 09:15

... other issues. Work Cited 1. Barr, Michael. “Architecting Embedded Systems for Add-on Software Modules.” Embedded Systems Programming, September 1999, 49. TEAMFLY ... applications. Consider the embedded systems currently supporting your desktop PC: IDE disk drive, CD-ROM, scanner, printer, and other devices are all embedded systems in their own right. How many ... introduction to embedded systems. Later, there’ll be a lab course. Eventually this course will grow into a full track, allowing students to earn a specialty in embedded systems. Much of this book’s...

Ngày tải lên: 13/12/2013, 11:15

... value of the final report will re- late strongly to the clarity of this definition. Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright ... are many binding methods available, ranging from three-ring looseleaf styles to mechanical clip systems to standard bound-book Technical Report Writing Downloaded from Digital Engineering Library...

Ngày tải lên: 15/12/2013, 03:15

... piping and duct systems. It requires attention to differences in elevation for pumping of ‘‘open’’ systems and teaches us to recognize static-pressure concerns in both closed and open systems. Static ... Pumps, fans, coils, heat exchangers, refrigeration sys- tems, process systems, boilers, deaerators, water softeners and treat- ment systems, water supply and distribution, building plumbing and fire ... Blood and catsup are nonnewtonian fluids. Density ␳ : Mass per unit volume, lbm/ft 3 . Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright...

Ngày tải lên: 15/12/2013, 03:15

... cycle, the energy input becomes a benefit. Q ϩ Q evap in COP ϭϭCOP ϩ 1 heat cool Q in In heat pump systems, the system designer should again try to work with the smallest possible thermal lift to ... aspect of physics which deals with the energy characteristics of materials and with the behavior of systems under- going changes in system energy levels. The field of thermodynamics is quite broad ... at the top of a hill has potential energy with respect to the bottom of the hill. Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright...

Ngày tải lên: 15/12/2013, 03:15

... (ЊF) scale is used, or for absolute temperatures the Rankine (ЊR) scale: ЊR ϭ ЊF ϩ 460Њ. Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright...

Ngày tải lên: 15/12/2013, 03:15

... water it can hold at a specified temperature and pressure. The properties of moist Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright...

Ngày tải lên: 15/12/2013, 03:15

... permission from ASHRAE Hand- book, 1987 HVAC Systems and Applications; subsequent edi- tions are similar, i.e., 2001 Fundamentals, Chap. 7, Table 11. of the HVAC systems, the HVAC designer is not generally ... Design Goals for Air Conditioning Sound Control NOTE : These are for unoccupied spaces, with all systems operating. SOURCE : Copyright 1987, American Society of Heating, Refrigerating and Air Conditioning ... used for masking unwanted sound, is ran- dom sound in the speech interference range. Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright...

Ngày tải lên: 15/12/2013, 03:15

... smoke detectors are essential in outdoor air or mixed-air ducts. It is necessary to control VAV systems to maintain minimum out- door air quantities over the entire range of supply air flow rates. ... diffusers must be designed to provide good air distribution patterns at all air flow rates. Control systems will often require sensing of gaseous concentra- tions, particularly carbon monoxide, carbon ... decrease outside air quantities or to warn of failure of the filtering, smoke detection, or irradiation systems. 21.5.1 Commissioning All of our design efforts are of no value if the IAQ system is not...

Ngày tải lên: 15/12/2013, 03:15

Ngày tải lên: 17/12/2013, 14:15

Ngày tải lên: 17/12/2013, 14:15

... of numbers. Several systems of numbers are commonly used in computing circles. These are the decimal, binary, and hexa- decimal number systems . These alternative number systems have three things ... data communications, and networking. His experi- ence includes mainframe systems programmer, Fortune 500 DBA, management of systems programming, data communications, IT operations, engineering, ... digits within a given number Conversion between these systems is a common chore. You can do it manually by applying your knowledge of these number systems. Or, you might prefer to use one of the tools,...

Ngày tải lên: 21/12/2013, 04:18

... outstanding reconciling items that should be written back such as old, unpresented cheques FINANCIAL SYSTEMS & ANALYSIS INVENTORY & CASH Example of control test • Petty Cash  Test of petty ... away 5. Regular reconciliations reviewed by person with suitable level of authorities Inventory systems Process Risks Possible control procedure Inventory arrives because it has been purchased,...

Ngày tải lên: 22/12/2013, 15:15

... accounting systems ensures correct posting to revenue, receivables and sales tax accounts 3. Regular statements sent to customers 4. Centrally held prices and discounts 5. For manual systems  ... sales – the use of tills, preferably with in- built safeguards and linked to the main accounting systems 7. Where there are large volumes of receipts by mail and the above control is insufficient:  The ... dangerous area, as the easiest way to hide stolen money is to give customers credit instead FINANCIAL SYSTEMS & AUDIT SALES CYCLE Objectives of control • Sales are made to valid customers • Sales...

Ngày tải lên: 22/12/2013, 15:15

... invoice 4. Any goods returned to supplier are marked as return, to ensure GDN not prepared Financial Systems and Auditing Test of Control Purchase Cycle ...

Ngày tải lên: 22/12/2013, 15:15

... records  Production system;  Budget information,  Personnel system;  Computer systems software;  Computer applications software Sub- systems [Hayes, Dassen, Schilder and Wallage, Principles of Auditing ... partially beyond their control are partially beyond their control • Incentive systems do not guarantee Incentive systems do not guarantee that managers make the “right” that managers make the ... Auditing An Introduction to ISAs, edition 2.1] © Pearson Education Limited 2007 Slide 7.1 FINANCIAL SYSTEMS AND AUDITING Internal Control and Control Risk MANAGEMENT CONTROL AND CORPORATE GOVERNANCE ...

Ngày tải lên: 22/12/2013, 15:15

Ngày tải lên: 22/12/2013, 21:18

Ngày tải lên: 22/12/2013, 21:18