What are the things to do when approaching the port?

758

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What are the charcterstics of a P&ID controller block for Governor speed raise or lower for a load sharing functionality between 4 Gas turbines in droop mode.

1616

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how to calculate the fault in substation

807

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The Purest form of water can be obtained from:- I) a deep tube well II) a running stream III) a hot water spring IV) a heavy shower of rain

528

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MOP: can MOP is use for Industrial Purpose ? If yes ? what are the uses ? and which industriesw use ? If not use what is the reason? Can it be exported ?

752

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-QAINSPECT Difference between WEBINSPECT and WINRUNNER/TEST DIRECTOR?

1248

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I need help with the following lab. Can anyone explain it to me on how to approach this problem. Coding would be great too !!! No busy waiting allowed. Remember that Java monitors are 'signal and continue'. The input data is called the database (DB). In this problem, it consists of a single variable initialized in the main thread, to contain the current time of day in HH:MM:SS:mmm format (mmm is milliseconds) truncated to 3 digits. Threads follow these rules: 1. Readers may all attempt to read at the same time, but NOT if a writer is writing (i.e.; the writer is in the monitor. 2. Writing is exclusive (only 1 writer at a time, no readers while writing). 3. Options: (to be specified by instructor) a. Readers have absolute priority over writers. b. Writers have absolute priority over readers c. When a reader arrives and a writer is waiting, the reader is suspended behind the writer instead of being admitted immediately. Thus, a writer waits for readers that were running when it arrived, but does not to wait for new readers. You may program this in C++ or Java. There are 4 controlling input values: 1. r – number of readers 2. w – number of writers 3. R – delay for a reader to restart 4. W – delay for a writer to restart Create the following program consisting of 1 main process (your main program) with n threads: 1. The main thread: a. Creates the 'n' threads needed. Of these, r of them are readers and w of them are writers. Starts all readers and writers. b. Waits for all 'n' threads to complete. You may use any method to detect when they are all complete. c. Prints out the resulting outputs from the threads. 2. Threads: a. When a thread starts to run, it immediately tries to enter the monitor. b. A reader thread reads the DB, outputs the exact message below, then exits: >>> DB value read =: HH:MM:SS:mmm by reader number: rr where the underlined text is replaced with actual data. c. A writer thread updates the DB with a new value (from the system time), outputs the exact message below, then exits: *** DB value set to: HH:MM:SS:mmm by writer number: ww where the underlined text is replaced with actual data. d. Each thread accesses the data a total of 10 times, exiting, then re-entering the monitor after each access. Hints: 1. File access *might* not be thread-safe, so you should be prepared to handle this. Read the documentation for the language you are using. 2. Suggested values for delays are: a. If looping, R >=1,000,000 and W>=100,000 b. If using “sleep”, then R=100 ms, W=50 ms. Additional: • Thread output is to ONE file used by ALL threads (so you need to synchronize access to it). • Readers must provide sufficient delay that results are useful (delay by R before re-trying). R is another input value. • Writers must also delay. Delay by W, updating the DB each time. W is an input. • Test your program with AT LEAST TWO different sets of values for r and w (#s of readers and writers) plus this set: r = 4, w=2. Basic operation of a thread: attempt to enter the monitor. If unsuccessful, you get put on a queue. When you get in, read or write the data (depending on type of thread), exit the monitor, wait the required delay amount, then try again. Repeat 10 times.

705

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1. do you like your job 2. How long does it take you to be one 3. How is interacting with the animals 4. What do you like better whales or dolphins 5.do you think your job is important v 6. when did you first realize you wanted to be a marine biologist? 7. how many hours do you generally work in a week 8. what is your greatest memory as a marine biologist 9.in your opinion what is the greatest thing in being a marine biologist 10. do you specialize in any area? if so what 11. what is a typical day in your career 12.do you travel a lot. 13. what school subjects would help you for this career. 14.what kind of species do you work with 15. do you like the people your work with

1156

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what is E1 ? and how this is work,what is data rate of 1 one E1 and why?

1131

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What is the Coefficient-of-variation?

228

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What are the governing principles under "reasonable accommodation"?

1578

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volts=230 c=10mf a=??

759

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what is error and fault in terms of software quality?

773

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Why should we hire you over the others waiting to be interviewed?

981

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WHAT IS THE SYLLABUS OO GROUP -I?

907

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