1 Multi-Channel Scheduling and Spanning Trees: Throughput-Delay Trade-off for Fast Data Collection in Sensor Networks ¨ Amitabha Ghosh‚ Ozlem Durmaz Incel‚ V. S. Anil Kumar‚ and Bhaskar Krishnamachari Two primary factors that affect the data collection rate (throughput) and timeliness (delay) are: (i) efficiency of the link scheduling protocol‚ and (ii) structure of the routing tree in terms of its node degrees and radius. In this paper‚ we utilize multiple frequency channels and design an
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the set of communications protocols used is called TCP/IP. TCP/IP is actually a collection of various protocols that each has their own special function or purpose. These protocols have been established by international standards bodies and are used in almost all platforms and around the globe to ensure that all devices on the Internet can communicate successfully. IEEE 802.11 is a set of standards for implementing wireless local area network (WLAN) computer communication in the 2.4‚ 3.6‚ 5 and 60
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experiment‚ the proponents used mixtures with varied proportions of ethanol and hydrogen peroxide to know which would make a more efficient‚ clean‚ and stable combination. Compared to conventional fuels‚ ethanol contains 36% oxygen thus resulting in more complete combustion. This greatly lowers the formation of carbon monoxide by allowing it to react with oxygen present in ethanol yielding a more eco-friendly gas. Hydrogen peroxide is also added to ethanol since it contributes to the addition of oxygen
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Bus Topology Bus networks (not to be confused with the system bus of a computer) use a common backbone to connect all devices. A single cable‚ the backbone functions as a shared communication medium that devices attach or tap into with an interface connector. A device wanting to communicate with another device on the network sends a broadcast message onto the wire that all other devices see‚ but only the intended recipient actually accepts and processes the message. Ethernet bus topologies are
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Batman and Robin are the original dynamic duo --- the epitome of a friendship. Batman (Bruce Wayne) and Robin (Dick Grayson)‚ capitalize on each other’s strengths and neutralize each other’s weaknesses to become what appears to be an inseparable and invincible team that fights against evil and protects the city of Gotham. Their relationship begins when Bruce Wayne adopts Dick Grayson as his legal ward to help him and provide guidance after the death of Grayson’s parents. Eventually‚ Grayson passes
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Records Administrators and Technicians November 24‚ 2010 HCR/210 Instructor: Jennifer Briscoe Records Administrators and Technicians The general duties for handling patient records differ between a record administrator (RHIA) and a records technician (RHIT). A RHIT has to have knowledge about medical records and implement the skills that go into filling out all the documents in the files. A RHIA hires and teaches medical record technicians how properly to complete medical documentations
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Many people think using social network such as Facebook‚ Twitter is a waste of time and unsafe as your information‚ can’t be secured. Others think that’s a good way to expand networking and social contacts. What is your opinion on this issue? Write five – paragraph essay on social networking. Social networking The social network is becoming more and more popular with many young people in the world. According to some recent researches‚ there are approximate 90 percent people who use Internet
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ISO-OSI 7-Layer Network Architecture This lecture introduces the ISO-OSI layered architecture of Networks. According to the ISO standards‚ networks have been divided into 7 layers depending on the complexity of the functionality each of these layers provide. The detailed description of each of these layers is given in the notes below. We will first list the layers as defined by the standard in the increasing order of function complexity: 1. Physical Layer 2. Data Link Layer 3. Network Layer 4.
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the default directory when you open a new command window? What is your working directory? A: /home/guest/ /home/guest/fangyuliu Exercise 3 LAB REPORT Q:Is the Internet service daemon‚ xinetd‚ started in your system? Is inetd started in your system? Why? A:xinetd(extended Internet daemon) is started in my system rather than inetd (internet service daemon). Both of them are super-server daemon started only under request. Because xinetd is more secure than inetd‚ more Unix- services now replace
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Why Do You Want to be a Professional Accountant Professional accountant is practitioner who help manager‚ investor and others make the better decision about how to allocate organization’s resource by measuring and disclosing assurance of financial report. From my perspective‚ professional accountant is not only play an important role in business world but also play an important role in the society. Being as a professional accountant opens the door to a vest range of career opportunities‚ in every
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