Mode of decay: Beta and gamma radiation. Chemical properties: Liquid at room temperature, but readily bonds with chlorides to form a powder. Cs is used in small amounts for calibration of radiation-detection equipment, such as Geiger-Mueller counters.
In larger amounts, Cs is used in medical radiation therapy devices for treating cancer; in industrial gauges that detect the flow of liquid through pipes; and in other industrial devices to measure the thickness of materials, such as paper, photographic film, or sheets of metal. Cs is produced by nuclear fission for use in medical devices and gauges. Cs also is one of the byproducts of nuclear fission processes in nuclear reactors and nuclear weapons testing.
Small quantities of Cs can be found in the environment from nuclear weapons tests that occurred in the s and s and from nuclear reactor accidents, such as the Chernobyl power plant accident inwhich distributed Cs to many countries in Europe. Because it readily bonds with chlorides, Cs usually occurs as a crystalline powder, rather than in its pure liquid form. Small amounts of Cs are incorporated into Lucite disks, rods, and seeds. Larger Cs sources are enclosed in lead containers such as long tubes that are closed at each end or small round metal containers.
If the lead containers of Cs are opened, the substance inside looks like a white powder and may glow. Cs from nuclear accidents or atomic bomb explosions cannot be seen and will be present in dust and debris from fallout.
Small amounts of Cs are present in the environment from weapons testing in the s and s, so people are exposed to some Cs every day. However, Cs is dangerous in the large, concentrated amounts found in radiation therapy units and industrial gauges.
The sources in these devices are designed to remain sealed and keep people from being exposed; however, if these canisters are intentionally or accidentally opened, the Cs inside could be dispersed. External exposure to large amounts of Cs can cause burns, acute radiation sicknessand even death.
Exposure to Cs can increase the risk for cancer because of exposure to high-energy gamma radiation. Internal exposure to Cs, through ingestion or inhalation, allows the radioactive material to be distributed in the soft tissues, especially muscle tissue, exposing these tissues to the beta particles and gamma radiation and increasing cancer risk.
Skip directly to site content Skip directly to page options Skip directly to A-Z link. Radiation Emergencies. Section Navigation. Facebook Twitter LinkedIn Syndicate. Radioisotope Brief: Cesium Cs Minus Related Pages. Half-life: Recall from Section 06 that a sequence is a Collection ADT that can store an arbitrary number of items. The picture below illustrates some of the behavior of a sequence ADT.
Please note how adding green items can shift some existing items red to the right, while others remain at their index gray ; likewise, removing items can shift some existing items yellow to the left, while again others remain at their index gray. We are not yet at the point where we can write our own complete ADTs in C.
We have provided an implementation of a sequence ADT that can store integers. There are already several functions in the main. In this question, we will cover a whole range of computer science and electrical engineering topics. Buckle up! We don't expect you to read, let alone understand the links above. Nonetheless, we wanted to share them with you because they contain some really neat foundational information. Now, these gates are important for this question because gates implement operators in Boolean algebra which finally brings us back to a topic we are all familiar with!
We call the last four gates "complex" because they can be expressed using a combination of the three basic gates. Once we can simulate gates and their Boolean algebra, we can combine them together to implement integer algebra.
We will focus on integer addition in this assignment question. Even a full-adder can only compute the sum of two 1-bit integers. Since the full-adder, however, allows for carry input as well as carry output, we can now chain multiple full-adders together.
This will allow us to add integers of arbitrary bit count. The goal of this question is threefold: simulating gates, the hardware building blocks of Boolean algebra; simulating basic adders, which use gates to perform addition of binary values, i.
In addition, we will practice the use of modules since the implementation of binary values, gates, and adders are split between multiple libraries. Only attempt it if you have some spare time and are curious about integrated circuit design. For us, a C-program is syntactically correct if there is a closing grouper for each opening one. In addition, groupers have to be balanced, i. You do not need to do anything for this question. By having this question, we want to let you know that one or more of the questions on this assignment will be hand-marked for coding style and the quality of your tests.
We are not stating which question s because you should use proper style and testing on all questions. Toggle navigation.
CS 136: Elementary Algorithm Design and Data Abstraction, Fall 2020
The questions are listed in approximate course chronological order, not necessarily in order of their difficulty or the amount of effort required. None of our private tests will intentionally cause an integer overflow. This library contains the tracing-tools as well as the symbol tools. The order within seq is the same as the order in which the integers were read. We do not care about runtime complexity at the moment, so your code does not have to meet any efficiency standards.
It has to terminate within the SeaShell timeout period, though. You can assume that we will not test your algorithm with more than items stored in a sequence. Question 2: Modules, Binary Arithmetic, and Integrated Circuitry [30 marks correctness] In this question, we will cover a whole range of computer science and electrical engineering topics.
This module implements a general ripple-carry adder, i. Your implementation only has to support binary numbers up to four bits in length as input. GOLD QUESTION no collaboration allowed [q3b-stackin-doubles] Write a program that reads in characters from input, and prints them in their original order, then in reverse order, then in their original order again, and then finally one more time in reverse order.Seashell SS-1, the planets first universal waterproof camera housing.
Compatible with over digital cameras with external zoom lens, SS-1 is ready for any kind of adventure. No matter if you are going diving, skiing or even cliff jumping, SS-1 can always make your experience exceptionally remarkable. As only minor adjustments are needed, in a matter of seconds, your camera can be fitted into the case and be ready for serious action. Up your game and go underwater with your now securely protected camera.
To find out if your camera is compatible with SS-1, click below. Designed to be both ergonomic and easy to use, SS-1 can both give you a secure grip underwater as well as being able to suit any user.
Stick back foam pad onto SS-1 to keep camera in place and to perform as a light hood for display. Zear Corporation Limited. Features Here's what it does. Truly Universal. SS-1 compatibility list. Easy and Ergonomic. Choose your favourite colour and add any of our accessories to make SS-1 truly yours. Dimensions To get started Verify compatibility with SS Install cushions into SS-1 to keep your camera in place. Here's what's in the box.Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
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Labels 15 Milestones 2 New issue. Uncaught in promise TypeError: Object. New seashell editor doesn't show column numbers when typing enhancement low-priority opened Nov 24, by yc2lee. Remember scroll bar position when switching files enhancement opened Nov 21, by yc2lee. Closing all files should take you back to the list of files page bug opened Nov 21, by yc2lee. Cursor blinks in console even when not reading input enhancement opened Nov 21, by yc2lee.
Console should refresh when changing question bug opened Nov 21, by yc2lee. Memory leak not reported bug opened Nov 15, by yc2lee. Occassional "Failed to connect" errors when signing in bug opened Nov 1, by yc2lee. Cursor randomly jumps to the start of the code bug opened Oct 27, by yc2lee. Making Marmoset submission UI more responsive enhancement high-priority opened Oct 26, by yc2lee.
Move Seashell repo to UW git server low-priority opened Oct 26, by yc2lee. Investigate "Failed to fetch skeletons" error opened Oct 20, by yc2lee. Make list of tabs of open files scrollable enhancement opened Oct 7, by yc2lee. Make it easier for users to get new Seashell versions enhancement opened Sep 28, by yc2lee. Make sign-in page say specifically what versions of what browsers are supported enhancement opened Sep 11, by yc2lee. Better handling of server changes in reducer enhancement opened Aug 26, by e45lee.
Prevent user from opening 2 or more tabs of the same Seashell instance enhancement opened Aug 26, by e45lee.CS builds on the techniques and patterns that you learned in CS The primary focus of the course is the design, analysis and implementation of fundamental algorithms and data structures.Section 05 - Pointers - Voiceover
This necessitates the use of computational models for both Scheme and C that more closely resemble what happens in actual implementations. The goal of CS is to give students the tools and concepts necessary to solve computational problems in a robust, efficient and verifiable manner.
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You can find the handbook description of the course here. All announcements will be made through piazza. We will link to major announcements here. With the exceptions of reading week and midterm week, each week in CS will follow a similar structure. Make sure that you do not miss any due dates:. Home This is the homepage for CS Fall Major Announcements All announcements will be made through piazza. Lecture slides for Section 6 has been released. Tutorial 3 is now available on our YouTube channel.
Lecture slides for Section 5 has been released. Tutorial 2 is available on our YouTube channel. Lecture slides for Section 4 has been released. Lecture slides for Section 3 and Quiz 3 have been released.With our large selection of natural sea shells and affordable prices, your search ends here.
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Radioisotope Brief: Cesium-137 (Cs-137)
Launching Xcode If nothing happens, download Xcode and try again. Latest commit. Git stats 3, commits. Failed to load latest commit information. View code. Seashell An online editor and evaluator for C programs. About Seashell is an online environment for editing, running, and submitting C programming assignments.
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