Millennium College (see Problem and Exercise 9-28) now wants to include new data about course sections: the department offering the course, the academic unit to which the department reports, and the...
State at least seven commonly used data mining techniques.
Describe the core idea underlying in-memory database management systems.
Identify at least five categories of human activity that are affected by big data and analytics.
Using the MDIFF "ordered analytical function" in Teradata SQL (see the Functions and Operators manual), show the differences (label the difference CHANGE) in TOTAL (which you calculated in the...
What is the primary difference between key-value stores and document stores?
Suppose the part in the previous problem is made in very large quantities on a production line in which an automated work handling system is used to transfer parts between machines. Transfer time...
A factory produces cardboard boxes. The production sequence consists of three operations: (1) cutting, (2) indenting, and (3) printing. There are three machines in the factory, one for each...
Describe the differences in orientation capabilities and work volumes for a :TR and a :RT wrist assembly. Use sketches as needed.
An emergency stop system is to be designed for a certain automatic production machine. A single "start" button is used to turn on the power to the machine at the beginning of the day. In addition,...
There are nine machines in the automatic lathe section of a certain machine shop. The setup time on an automatic lathe averages 6 hours. The average batch size for parts processed through the section...
In the previous problem, suppose that a double gripper is used instead of a single gripper as indicated in that problem. The activities in the cycle would be changed as follows: Steps 1, 4, and 5 are...
Since the robot's portion of the work cycle requires much less time than the machine tool in Problem 8.6, the possibility of installing a cell with two machines is being considered. The robot would...
What are the five material handling functions that must be provided in a manufacturing system?
What is a pallet fixture in work transport in a manufacturing system?
A unit load AS/RS for work-in-process storage in a factory must be designed to store 2000 pallet loads, with an allowance of no less than 20% additional storage compartments for peak periods and...
A rotary worktable is driven by a Geneva mechanism with five slots. The driver rotates at 48 rev/min. Determine (a) The cycle time, (b) Available process time, and (c) Indexing time each cycle.
A ten-station rotary indexing machine performs nine machining operations at nine workstations, and the tenth station is used for loading and unloading parts. The longest process time on the line is...
An industrial robot will service n production machines in a machine cluster. Each production machine is identical and has an automatic processing time Tm = 130 sec. The robot servicing and...
A new forging plant must supply parts to the automotive industry. Because forging is a hot operation, the plant will operate 24 hr per day, five days per week, 50 weeks per year. Total output from...
Solve the previous problem except that the Geneva has eight slots. Previous problem A Geneva with six slots is used to operate the worktable of a dial-indexing machine. The slowest workstation on the...
A 16-station transfer line can be divided into two stages by installing a storage buffer between stations 8 and 9. The probability of failure at any station is 0.01. The ideal cycle time is 1.0 min...
Cost elements associated with the operation of the ten-station transfer line in Problem 16.4 are as follows: raw work part cost = $0.55/pc, line operating cost = $42.00/hr, and cost of disposable...
What is the difference between a hierarchical structure and a chain-type structure in a classification and coding scheme?
Develop the form code (first five digits) in the Opitz System for the part illustrated in Figure P18.3.
A six-station automatic assembly machine has an ideal cycle time of 6 sec. At stations 2 through 6, parts feeders deliver components to be assembled to a base part that is added at the first station....
Apply the rank order clustering technique to the part-machine incidence matrix in the following table to identify logical part families and machine groups. Parts are identified by letters, and...
The upper and lower control limits for a p chart are: LCL = 0 and UCL = 0.20. The center line of the p chart is at 0.10. Determine the sample size n that is compatible with this control chart.
A supplier of parts to an assembly plant in the household appliance industry is required to make deliveries on a just-in-time basis (daily). For one of the parts that must be delivered, the daily...
Compare the two types of network architectures.
1. Discuss the reasons why end-user-developed information systems can be of poor quality. 2. What can be done to improve this situation?
Describe a request for proposal (RFP)?
An autofocus camera will adjust the distance of the lens from the film by using a beam of infrared or ultrasound to determine the distance to the subject [42]. Sketch a block diagram of this...
The potential of employing two or more helicopters for transporting payloads that are too heavy for a single helicopter is a well-addressed issue in the civil and military rotorcraft design arenas...
Determine the transfer function V0(s)/V(s) for the op-amp circuit shown in Figure E2.28 [1]. Let R1 = 167 kΩ, R2 = 240 kΩ, R3 = 1 kΩ, R4 = 100 kΩ, and...
For the open-loop control system described by the block diagram shown in Figure P2.12, determine the value of K such that y(t) 1 as t when r(t) is a unit step input. Assume zero initial conditions....
Obtain a signal-flow graph to represent the following set of algebraic equations where x1 and x2 are to be considered the dependent variables and 6 and 11 are the inputs: x1 + 1.5x2 = 6, 2x1 + 4x2 =...
A mechanical system is shown in Figure P2.17, which is subjected to a known displacement x3(t) with respect to the reference, (a) Determine the two independent equations of motion. (b) Obtain the...
Consider the inverting operational amplifier in Figure AP2.9. Find the transfer function V0(s)/V1(s), Show that the transfer function can be expressed as where the gains KP, KI, and KD are functions...
An operational amplifier circuit that can serve as a filter circuit is shown in Figure DP2.4. Determine the transfer function of the circuit, assuming an ideal op-amp. Find v0(t) when the input is...
We want to accurately position a table for a machine as shown in Figure CDP2.1. A traction-drive motor with a capstan roller possesses several desirable characteristics compared to the more popular...
A system is represented by a block diagram as shown in Figure E3.5. Write the state equations in the form of Equations (3.16) and (3.17). FIGURE E3.5 Block diagram.
Determine a state variable model for the circuit shown in Figure P3.22. The state variables are x1 = i, x2 = v1, and x3 = v2. The output variable is v0(t). 12 Output FIGURE P3.22 RLC circuit.
The transfer function of a system is Sketch the block diagram and obtain a state variable model. Y(s) 2s 10 R(s) 4s26s 10 T(s)-
Figure P4.16 shows the model of a two-tank system containing a heated liquid, where T0 is the temperature of the fluid flowing into the first tank and T2 is the temperature of the liquid flowing out...
An armature-controlled DC motor with tachometer feedback is shown in Figure AP4.4. Assume that Km = 10, J = l, and R = 1. (a) Determine the required gain, K, to restrict the steady-state error to a...
Consider the feedback system in Figure CP4.4. Suppose that the controller is Gc(s) = K = 10. Figure CP4.4 Unity feedback system with controller gain K. (a) Develop an m-file to compute the...
Consider the closed-loop control system shown in Figure CP4.5. Develop an m-file script to assist in the search for a value of k so that the percent overshoot to a unit step input is greater than 1%,...
Consider the block diagram shown in Figure E5.6 [16]. (a) Calculate the steady-state error for a ramp input. (b) Select a value of K that will result in zero overshoot to a step input. Provide the...
Robots can be used in manufacturing and assembly operations that require accurate, fast, and versatile manipulation [10, 11]. The open-loop transfer function of a direct-drive arm may be approximated...
Consider the closed-loop system in Figure P5.22, where (a) If Ñ = 2.43, determine the value of K such that the steady-state error of the closed-loop system response to a unit step input, R(s)...
A unity feedback system has a loop transfer function (a) Sketch the root locus for K > 0. (b) Find the roots when K = 10 and 20. (c) Compute the rise time, percent overshoot, and settling time (with...
A control system, as shown in Figure E7.17, has a process G(s) = 1 / s(s - 1). (a) When Gc(s) = K, show that the system is always unstable by sketching the root locus. (b) When Gc(s) K(s + 2) / s +...
A unity feedback system has a loop transfer function (a) Determine the range of K for stability. (b) Sketch the root locus. (c) Determine the maximum ζ of the stable complex roots. L(s) =...
Sketch the root locus for a unity feedback system with (a) Find the gain when all three roots are real and equal. (b) Find the roots when all the roots are equal as in part (a). K(s 1)
A unity feedback system has a loop transfer function (a) Sketch the root locus and determine K for a stable system with complex roots with ζ equal to l/2. (b) Determine the root...
A unity feedback system has a loop transfer function Sketch the root locus for K > 0, and select a value for K that will provide a closed step response with settling time less than 1 second. K(s + 3s...
A unity negative feedback system has the loop transfer function Develop an m-file to plot the root locus and show with the rlocfind function that the maximum value of K for a stable system is K =...
Consider again the power control system of Problem P7.7 when the steam turbine is replaced by a hydro turbine. For hydro turbines, the large inertia of the water used as a source of energy causes a...
A block diagram of a second-order system is shown in Figure CP8.5. FIGURE CP8.5 A second-order feedback controlsystem.
A unity feedback system has a loop transfer function (a) Find the maximum magnitude of the closed-loop frequency response using the Nichols chart, (b) Find the bandwidth and the resonant frequency of...
A unity feedback system has a loop transfer function (a) Plot the Bode diagram and (b) determine the gain K required to obtain a phase margin of 30°. What is the steady-state error for a ramp...
A system has the loop transfer function where K = 10.5. Show that the system crossover (O dB) frequency is 5 rad/s and that the phase margin is 40°. K(1 s/5) s(1 +s/2)(1 s/10) L(s) = Ge(s)G(s) =
A unity feedback system has a loop transfer function
Sketch the polar plot of the frequency response for the following loop transfer functions: (a) (b) (c) (d) 5(s2 1.4s 1) (s 1)2 G16 20(s + 8) s(s 2) (s + 4)
Automatic steering of a ship would be a particularly useful application of feedback control theory [20]. In the case of heavily traveled seas, it is important to maintain the motion of the ship along...
A unity feedback system has a loop transfer function Determine the range of K for which the system is stable using the Nyquist plot. L(s)-G,(s)G(s)-s-5
The experimental Oblique Wing Aircraft (OWA) has a wing that pivots, as shown in Figure P8.17. The wing is in the normal un skewed position for low speeds and can move to a skewed position for...
A robot will be operated by NASA to build a permanent lunar station. The position control system for the gripper tool is shown in Figure 10.1(a), where //(5) = I, and Determine a compensator lag...
A single-input, single-output system is described b y (t) = [0 l]x(/) (a) Determine p and K such that the unit step response exhibits a zero steady-state error and the percent overshoot meets the...
A computer uses a printer as a fast output device. We desire to maintain accurate position control while moving the paper rapidly through the printer. Consider a system with unity feedback and a...
A liquid-level control system (see Figure 9.32) has a loop transfer function L(s) = Gc(s)G(s)H(s), where H(s) = 1, Gc(s) is a compensator, and the plant is where T - 50 ms. Design a compensator so...
A unity feedback system of the form has Design a compensator Gc(s) so that the overshoot for a step input R(s) is less than 5% and the steady-state error is less than 1 %. Determine the bandwidth of...
A unity feedback system has a loop transfer function Plot the percent overshoot of the closed-loop system response to a unit step input for K in the range 0 K (s2 2s20) L(s) = Ge(s)G(s) = s(s + 2)(s2...
Consider the second-order system y = [1 0]x + [0]. Determine the observer gain matrix required to place the observer poles at s1,2 = - 1 j. 10 x + 3 -2
For the solutions of Problems PI 1.3, P11.4, and Pll.5, determine the roots of the closed-loop optimal control system. The resulting closed-loop roots depend on the performance index selected.
Consider the system y = [1 0]x Determine if the system is controllable and observable. Compute the transfer function from u to y. 5 06
Consider the system in state variable form y = [1 0 0 0]x + [0)u. Design a full-state feedback gain matrix and an observer gain matrix to place the closed-loop system poles at $i2 - -1.4 / 1 . 4 , ^...
Consider the system y (t) = [1 0 0]x(t). Suppose that we are given three observations y(t1), i - 1,2,3, as follows: y(t1) = 1 at t1 = 0 y(t2) = -0.0256 at t2 = 2 y(t3) = -0.2522 at t3 = 4. (a) Using...
Consider the second-order system y = [1 0]x + [0]. The parameters a, b, c1, and c2 are unknown a priori. Under what conditions is the system completely controllable? Select valid values of a, b, cl...
Consider the unmanned underwater vehicle (UUV) problem presented in DP4.7. The control system is shown in Figure P12.1, where R(s) - 0, the desired roll angle, and Td[s) = 1/s. We select Gc(s) = K(s...
A system of the form has Determine the range of sampling period T for which the system is stable. Select a sampling period T so that the system is stable and provides a rapid response. 10 Gp(s) -
In the discussion on global variables in threads, we used a procedure create global to allocate storage for a pointer to the variable, rather than the variable itself. Is this essential, or could the...
Consider the following C program: int X[N]; int step = M; /* M is some predefined constant */ for (int i = 0; i < N; i += step) X[i] = X[i] + 1; (a) If this program is run on a machine with a 4-KB...
A computer whose processes have 1024 pages in their address spaces keeps its page tables in memory. The overhead required for reading a word from the page table is 5 nsec. To reduce this overhead,...
A computer with an 8-KB page, a 256-KB main memory, and a 64-GB virtual address space uses an inverted page table to implement its virtual memory. How big should the hash table be to ensure a mean...
Explain the difference between internal fragmentation and external fragmentation. Which one occurs in paging systems? Which one occurs in systems using pure segmentation?
A Linux i-node has 12 disk addresses for data blocks, as well as the addresses of single, double, and triple indirect blocks. If each of these holds 256 disk addresses, what is the size of the...
A professor shares files with his students by placing them in a publicly accessible directory on the Computer Science department's Linux system. One day he realizes that a file placed there the...
In the text it is stated that locality can often be exploited to improve performance. But consider a case where a program reads input from one source and continuously outputs to two or more files....
What is the difference between the conceptual world and the real world? Is it possible for a conceptual model to represent reality in total? Why or why not?
How do cardinality constraints and participation constraints relate to the notions of total and partial participation?
Discuss the difference between existence dependency and identification dependency.
Define the term partial key.
This is a narrative about a small university in Kodai, CA. There are several colleges in the university. Each college has a name, location, and size. A college offers many courses over four college...
Describe various data types associated with attributes.
Draw the ER diagram for the two instance diagrams depicted here. NEW ASSET S1 Assigned to S2 Scheduled for S3 AIRFORCE BASE NAVAL BASEE r1 S4 r8 A1 N1 r2 A2 S5 Se A3 A4 AS S7 S8 N3 S9 S10 S11...
What four deletion rules are applicable to deletion constraints? Which rule(s) refer to an action on the parent and which rule(s) refer to an action on the child?
When used in the context of data modeling, what is meant by the term "mapping"?
Assume that data are maintained on airports around the country for a company that offers a flight chartering service for college basketball teams. They gather information from a wide variety of...