For the Manages relationship in Figure 2-12a, describe one or more situations that would result in different cardinalities on the two ends of this unary relationship. Based on your description for...

The stability of a motorcycle and rider is an important area for study because many motorcycle designs result in vehicles that are difficult to control [12, 13]. The handling characteristics of a...

Draw an ERD for each of the following situations. (If you believe that you need to make additional assumptions, clearly state them for each situation.) Draw the same situation using the tool you have...

List five resources to which a multitasking operating system might have to coordinate access.

An AGVS will be used to satisfy material flows indicated in the from-to Chart in the table below, which shows deliveries per hour between stations (above the slash) and distances in meters between...

Large antenna, as shown in Figure CP7.6(a), is used to receive satellite signals and must accurately track the satellite as it moves across the sky. The control system uses an armature-controlled...

A specific closed-loop control system is to be designed for an under damped response to a step input. The specifications for the system are as follows: 10% < percent overshoot < 20%, Settling time <...

A new suspended, mobile, remote-controlled video camera system to bring three-dimensional mobility to professional football is shown in Figure DP4.8(a) [29]. The camera can be moved over the field,...

Augment your indexes.html page so that in addition to displaying the wind chill index when the user clicks the button, it also displays a health warning message when appropriate. For example, Figure...

Describe the relational schema mapped from the Library EER model shown in Figure 17.12 and described in Exercises 12.14 and 13.12.

A certain job shop specializes in one-of-a-kind orders dealing with parts of medium-to-high complexity. A typical part is processed sequentially through ten machines in batch sizes of one. The shop...

The small-signal circuit equivalent to a common-emitter transistor amplifier is shown in Figure P2.23. The transistor amplifier includes a feedback resistor Rf. Determine the input-output ratio...

Consider a disk with block size B=512 bytes. A block pointer is P=6 bytes long, and a record pointer is P R =7 bytes long. A file has r=30,000 EMPLOYEE records of fixed-length. Each record has the...

List six potential benefits of achieving an SQL standard that is widely accepted.

An automobile suspension system has three physical state variables. The state variable feedback structure is shown in the figure, with K1 = 1. Select K2 and K3 so that the roots of the characteristic...

Consider the universal relation schema INVENTORY (Store#, Item, Vendor, Date, Cost, Units, Manager, Price, Sale, Size, Color, Location) and the constraint set F {fd1, fd2, fd3, fd4, fd5, fd6, fd7}...

A bus company is responsible for offering public transportation in the suburbs of a large metropolitan area. The company has significant data management requirements: It needs to keep track of its...

Write the following queries in XQuery, assuming the DTD from exercise. a. Find the names of all employees who have a child who has a birthday in March. b. Find those employees who took an examination...

By implementing systems based on SaaS, companies are relinquishing control over ownership of the technology and are putting access to valuable data in the hands of a third party. What are the perils...

The instance diagram shown below illustrates the relationship between Sullivan Insurance Agency's agents and clients. Using this instance diagram, write the narrative that describes the relationship...

A warehouse consists of five aisles of racks (racks on both sides of each aisle) and a loading dock. The rack system is four levels high. Forklift trucks are used to transport loads between the...

A system is shown in Figure E2.30. (a) Find the closed-loop transfer function Y(s)/R(s) when G(s) = 10 / s2 + 2s + 10. (b) Determine Y(s) when the input R(s) is a unit step. (c) Compute y(t). FIGURE...

A system consists of two electric motors that are coupled by a continuous flexible belt. The belt also passes over a swinging arm that is instrumented to allow measurement of the belt speed and...

Consider the closed-loop system in Figure E5.19, where (a) Determine the closed-loop transfer function T(s) = Y(s)/R(s). (b) Determine the steady-state error of the closed-loop system response to a...

Consider the database shown in Figure 1.2, whose schema is shown in Figure 2.1. What are the referential integrity constraints that should hold on the schema? Write appropriate SQL DDL statements to...

True or false: a. If stored video is streamed directly from a Web server to a media player, then the application is using TCP as the underlying transport protoco\' b. When using RTP, it is possible...

Modify the DewPoint and WindChill functions in weather.js to implement these more robust definitions. In particular, both functions should return NaN if called with invalid inputs, and the WindChill...

Consider the two-mass system in Figure P2.51. Find the set of differential equations describing the system. s, M2 elt FIGURE P2.51 one damper Two-mass system with two springs and

Consider the feedback control system shown in Figure E4.10. (a) Determine the steady-state error for a step input in terms of the gain, K. (b) Determine the overshoot for the step response for 40...

A robot uses feedback to control the orientation of each joint axis. The load effect varies due to varying load objects and the extended position of the arm. The system will be deflected by the load...

Consider the EMPLOYEE entity type given below. a. List all key and non-key attributes. b. What is (are) the unique identifier(s)? c. Which attribute(s) is (are) derived attributes? d. Using the...

1. What are some examples of security risks associated with a mobile device? 2. How can these devices automatically track a user's location? 3. What are a couple of recommendations for protecting...

What is lock de-escalation, and under what conditions is it required why is it not required if the unit of data shipping is an item?

Your father asks you to help him purchase a new computer. He wants to use his computer for email, Internet access, downloading pictures from his digital camera, uploading those pictures to a shared...

Obtain the differential equations for the circuit in Figure E2.15 in terms of i1 and i2. FIGURE E2.15 Electric circuit

The water level h(t) in a tank is controlled by an open-loop system, as shown in Figure P2.47. A DC motor controlled by an armature current ia turns a shaft, opening a valve. The inductance of the DC...

An automatic speed control system will be necessary for passenger cars traveling on the automatic highways of the future. A model of a feedback speed control system for a standard vehicle is shown in...

A system has the model Add state variable feedback so that the closed-loop poles are s = -4, -5, and -6. 3 -1 0

Consider Figure 2.1. In addition to constraints relating the values of columns in one table to columns in another table, there are also constraints that impose restrictions on values in a column or a...

The following routine removes the first half of the list passed as a parameter:

The input is a collection of currencies and their exchange rates. Is there a sequence of exchanges that makes money instantly? For instance, if the currencies are X, Y, and Z and the exchange rate is...

Identify the operations that follow as constructor, query, or update. Which operations would not need to be shown in the class rectangle? Calculate employee raise (raise percent) Insert employee ()...

Typically, a patient staying in a hospital receives medications that have been ordered by a particular doctor. Because the patient often receives several medications per day, there is a 1:M...

How is a 1:M relationship between two entities mapped into a relational schema?

Write and execute a variety of queries to test the functionality of your database based on what you learned in this chapter. Don't panic if you can't write all the queries; many of the queries will...

A high-performance helicopter has a model. The goal is to control the pitch angle 0 of the helicopter by adjusting the rotor thrust angle 8. The equations of motion of the helicopter are where x is...

SPARC is lacking a number of instructions commonly found on CISC machines. Some of these are easily simulated using either register R0, which is always set to 0, or a constant operand. These...

Consider the following code fragment in a high-level language: Assume that Q is an array of 32-byte records and the VAL field is in the first 4 bytes of each record. Using x86 code, we can compile...

Consider the following relation: TRIP (trip_id, start_date, cities_visited, cards_used) This relation refers to business trips made by salesmen in a company. Suppose the trip has a single start_date...

Consider a variation of the MAC algorithm (Figure 8.9) where the sender sends (m, H(m) + s), where H(m) + s is the concatenation of H(m) and s. Is this variation flawed? Why or why not?

Create a VB application that lets the user enter his or her weight (in pounds) and height (in inches). If the user fails to enter numeric values, display an appropriate error message and do not...

You are given a currency system with coins of (decreasing) value c1, c2, . . . , cN cents. a. Give an algorithm that computes the minimum number of coins required to give K cents in change. b. Give...

Write the SQL code to generate the total hours worked and the total charges made to all projects. The results should be the same as those shown in Figure.

Why would two-phase locking not be an appropriate concurrency control scheme for indexes? Discuss a more appropriate locking scheme for tree-based indexes.

Averages of 20 new orders are started through a certain factory each month. On average, an order consists of 50 parts that are processed sequentially through 10 machines in the factory. The operation...

A total of 7000 stampings must be produced in the press department during the next three days. Manually operated presses will be used to complete the job and the cycle time is 27 sec. Each press must...

Draw the entity-relationship diagram for this patient appointment system. The business rules of this system are the following: A doctor can be scheduled for many appointments, but may not have any...

A feedback control system has the structure shown in Figure P2.35. Determine the closed-loop transfer function Y(s)/R(s) (a) By block diagram manipulation and (b) By using a signal-flow graph and...

As an automobile moves along the road, the vertical displacements at the tires act as the motion excitation to the automobile suspension system [16]. Figure FIGURE AP8.3 Auto suspension system model....

Define interrelation constraint and give one example of such a constraint. How are interrelation constraints addressed?

Re-read the MIS in Use case to refresh your memory of the Edoc HELM system. a. Using Figure 2.1 as a guide, draw the paper-based process described in the case. b. Now draw the process after HELM was...

Define each of the following terms: a. Data b. Information c. Metadata d. Enterprise resource planning e. Data warehouse f. Constraint g. Database h. Entity i. Database management system j....

Choose Oracle data types for the attributes in the normalized relations that you created in Problem and Exercise 4-47 in Chapter 4. DBMS you are using is Oracle. If that is not the case, feel free to...

In Problem 18.8, two logical machine groups are identified by rank order clustering. For each machine group, (a) Determine the most logical sequence of machines for this data. (b) Construct the...

The weekly demand for a certain part is 950 units. The plant operates 5 days per week, with an effective operating time of 440 min per day. Determine the takt time for this part.

Models of physiological control systems are valuable aids to the medical profession. A model of the heart-rate control system is shown in Figure P1.9 [23, 24, 48]. This model includes the processing...

Consider the block diagram in Figure P3.37. Using the block diagram as a guide, obtain the state variable model of the system in the form x = Ax + Bu y = Cx + Du Using the state variable model as a...

A unity feedback system has the loop transfer function (a) Find the breakaway point on the real axis and the gain for this point. (b) Find the gain to provide two complex roots nearest the...

A position control system for a DC motor is shown in Figure AP7.8. Obtain the root locus for the velocity feedback constant K, and select K so that all the roots of the characteristic equation are...

Determine the feedback gain k of Example that minimizes the performance index 11.12 when xT (0) = [1 -1], Plot the performance index j versus the gain k. x7x dt J =

A similar instruction format is used in the Zilog Z8000 microprocessor family. In this case, there is a direct port addressing capability, in which a 16-bit port address is part of the instruction,...

Represent the following twos complement values in decimal: 1101011; 0101101.

Calculate (72530 - 13250) using tens complement arithmetic. Assume rules similar to those for twos complement arithmetic.

Consider a hypothetical computer with an instruction set of only two n-bit instructions. The first bit specifies the opcode, and the remaining bits specify one of the 2n-1 n-bit words of main memory....

Define: EA = (X)+ is the effective address equal to the contents of location X, with X incremented by one word length after the effective address is calculated; is the effective address equal to the...

Composite and multi-valued attributes can be nested to any number of levels. Suppose we want to design an attribute for a STUDENT entity type to keep track of previous college education. Such an...

Develop cost functions for the PROJECT, UNION, INTERSECTION, SET DIFFERENCE, and CARTESIAN PRODUCT algorithms discussed in section19.4.

In this problem. we are interested in finding out the efficiency of a BitTorrent- like P2P file sharing system . Consider two peers Bob and Alice. They join a torrent with M peers in total (including...

What is the relationship between the variable LastByteRcvd in Section 3.5.5 and the variable y in Section 3.5.4?

For each part of this exercise, assume the initial cache and memory state as illustrated in Figure 4.37. Each part of this exercise specifies a sequence of one or more CPU operations of the form: P#:...

Rewrite the following WHERE clause without the use of the IN special operator. WHERE V_STATE IN ('TN', 'FL', 'GA')

In this exercise, you will use database software to design a database for managing inventory for a small business. Sylvester's Bike Shop, located in San Francisco, California, sells road, mountain,...

Let Fi be the Fibonacci numbers as defined in Section 1.2. Prove the following: a. N2i=1 Fi = FN 2 b. FN < N, with = (1 + 5)/2 c. Give a precise closed-form expression for FN.

Draw a decision tree for the problem of deciding whether to move forward at a road intersection, given that the light has just turned green.

Identify the model(s) that contains each of the following components: Aggregation association Class Derived attributes Extends association Execution occurrence Guard condition Initial state ...

Using the Internet, search for providers of cloud services. Then, classify the types of services they provide (SaaS, PaaS, and IaaS).

Suppose the hypothetical processor of Figure 1.3 also has two I/O instructions: 0011 = Load AC from I/O 0111 = Store AC to I/O In these cases, the 12-bit address identifies a particular external...

Describe the process of creating a table in SQL and the different data types you can use for fields.

When you go to a restaurant, that restaurant must execute several operational processes. Apply the concepts in this chapter to several of these processes. These processes might include seating,...

Study the DreamHome case study presented in Section 11.4 and Appendix A. (a) In what ways would a DBMS help this organization? (b) What do you think are the main objects that need to be represented...

The purpose of this exercise is to present a scenario that requires you to act in the role of business intelligence (BI) consultant for your university (or college) and produce a report to guide...

Describe the processes associated with data extraction, cleansing, and transformation tools.

Match the following terms to the appropriate definitions: well-structured a. constraint between two relation anomaly functional attributes b. functional dependency between the primary key and a...

The following attributes form a relation that includes information about individual computers, their vendors, software packages running on the computers, computer users, and user authorizations....

Write the SQL statements for creating the tables, specifying data types and field lengths, establishing primary keys and foreign keys, and implementing any other constraints you may have identified....

Identify opportunities for using triggers in your database and write the appropriate DDL queries for them.

How can plant capacity be increased or decreased in the short term?

The mean time between failures and mean time to repair in a certain department of the factory are 400 hours and 8 hours, respectively. The department operates 25 machines during one 8hour shift per...

Five machines will constitute a GT cell. The from to data for the machines are shown in the table below. (a) Determine the most logical sequence of machines for this data, and construct the network...

Determine the partial fraction expansion for V(s) and compute the inverse Laplace transform. The transfer function V(s) is given by: V(s) = 400 / s2 + 8s + 400