The Experts below are selected from a list of 458226 Experts worldwide ranked by ideXlab platform
Farnaz Younessian - One of the best experts on this subject based on the ideXlab platform.
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the effect of autologous leukocyte platelet rich fibrin on the rate of orthodontic tooth movement a prospective randomized clinical trial
European Journal of Dentistry, 2018Co-Authors: Azita Tehranchi, Hossein Behnia, Fereydoun Pourdanesh, Parsa Behnia, Nelson Pinto, Farnaz YounessianAbstract:Objective: The aim of this study was to evaluate the effect of LPRF, placed in extraction sockets, on orthodontic tooth movement (OTM). Materials and Methods: Thirty extraction sockets from eight patients (five males, three females, with a mean age of 17.37 years; range 12–25 years) requiring extraction of first premolars based on their orthodontic treatment plan participated in this split-mouth clinical trial. In one randomly selected quadrant of each jaw, the extraction socket was preserved as the experimental group by immediate placement of LPRF in the extraction socket. The other quadrant served as the control group for secondary healing. Immediately, the teeth adjacent to the defects were pulled together by a NiTi closed-coil spring with constant force. A piece of 0.016 × 0.022-inch stainless steel wire was used as the main arch wire. The amount of OTM was measured on the study casts at eight time points with 2-week intervals for 3 months. Analysis of random effect model was performed for the purpose of comparison between the experimental and control groups. Results: According to the random effect model, a statistically significant difference was found between the experimental and control group in rate of OTM (P = 0.006). Conclusion: According to the results, application of LPRF, as an interdisciplinary approach combining orthodontics and surgery, may accelerate OTM, particularly in extraction cases.
Jawad Yahya Kadhim - One of the best experts on this subject based on the ideXlab platform.
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computer networks configuration and security in tcp ip networks
International Journal of Research, 2017Co-Authors: Jawad Yahya KadhimAbstract:A simple LAN Network in Packet Tracer version 6.3 has been created and configured, such that there is a connection throughout the entire network and also a basic secure connection against anyone who tries to breach it. The configurations and the network particularities are presented in the paper. Packet Tracer is a program made by Cisco Systems that permits users to build network topologies. The software allows users to simulate the configuration of Cisco routers and switches through a simulated command line interface. Packet Tracer uses a drag and drop user interface. It allows users to add and remove simulated network devices. Another option is the use of Omnet++ in order to simulate a network, which is extensible, modular, based on C++ simulation library components and frameworks. A peer to peer application has been created where there exists a group of friends where, when someone sends a message, everyone in that group receives the message. The roles change. Sometimes a computer or a mobile phone will be a server, when the rest of the devices will be clients and sometimes the same device will be a client and one of the rest will be the server. in The peer’s exchange secret messages, like in a chat. The client should register with his/her username to the application. Any user has a username and a password. A user can “be friend” with other users. A list of his/her friends will appear on the user’s screen after logging in. A user can send messages which get automatically encrypted when they are sent to the receiver. The receiver will have the option to decrypt the message which he/she received. For encryption, the Caesar cipher was used. The application that was designed uses TCP/IP communication to connect several devices to a server. TCP is a connection-oriented protocol. In order to do communication over the TCP protocol, a connection must first be established between the pair of sockets. While one of the sockets listens for a connection request (server), the other asks for a connection (client). Once two sockets have been connected, they can be used to transmit data in both (or either one of the) directions.
Takao Akatsuka - One of the best experts on this subject based on the ideXlab platform.
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autonomic buffer control of web proxy server
Lecture Notes in Computer Science, 1998Co-Authors: Yu Guo, Yukio Hiranaka, Takao AkatsukaAbstract:In this paper, we discuss the relation between the communication buffer size and the transfer speed under several web access patterns based on TCP/IP network, and present a scheme of autonomic control for the communication buffer. By this scheme, we could effectively improve the performance of web proxy server or web server, even when any number of accesses happen in a period of short time or large web files are transferred simultaneously. In the scheme, we design a buffer controller to decide the size of buffer for each connection based on socket, and a buffer information table to manager all the transfer buffers on a web server or proxy server.
Azita Tehranchi - One of the best experts on this subject based on the ideXlab platform.
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the effect of autologous leukocyte platelet rich fibrin on the rate of orthodontic tooth movement a prospective randomized clinical trial
European Journal of Dentistry, 2018Co-Authors: Azita Tehranchi, Hossein Behnia, Fereydoun Pourdanesh, Parsa Behnia, Nelson Pinto, Farnaz YounessianAbstract:Objective: The aim of this study was to evaluate the effect of LPRF, placed in extraction sockets, on orthodontic tooth movement (OTM). Materials and Methods: Thirty extraction sockets from eight patients (five males, three females, with a mean age of 17.37 years; range 12–25 years) requiring extraction of first premolars based on their orthodontic treatment plan participated in this split-mouth clinical trial. In one randomly selected quadrant of each jaw, the extraction socket was preserved as the experimental group by immediate placement of LPRF in the extraction socket. The other quadrant served as the control group for secondary healing. Immediately, the teeth adjacent to the defects were pulled together by a NiTi closed-coil spring with constant force. A piece of 0.016 × 0.022-inch stainless steel wire was used as the main arch wire. The amount of OTM was measured on the study casts at eight time points with 2-week intervals for 3 months. Analysis of random effect model was performed for the purpose of comparison between the experimental and control groups. Results: According to the random effect model, a statistically significant difference was found between the experimental and control group in rate of OTM (P = 0.006). Conclusion: According to the results, application of LPRF, as an interdisciplinary approach combining orthodontics and surgery, may accelerate OTM, particularly in extraction cases.
Lei Wang - One of the best experts on this subject based on the ideXlab platform.
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sdn enabled adaptive and reliable communication in iot fog environment using machine learning and multi objective optimization
IEEE Internet of Things Journal, 2020Co-Authors: Aamir Akbar, Muhammad Ibrar, Mian Ahmad Jan, Ali Kashif Bashir, Lei WangAbstract:The IoT devices, backed by resourceful fog computing, are capable of meeting the requirements of computationally-intensive tasks. However, many existing IoT applications are unable to perform well, due to different QoS requirements, while communicating with the fog server. Besides, constantly changing traffic demands of applications is another challenge. For example, the demand for real-time applications includes communicating over a path that is less prone to delay, and applications that offload computationally-intensive tasks to the fog server need a reliable path that has a lower probability of link failure. This results in a trade-off between conflicting objectives that are constantly evolving, i.e., minimizing end-to-end delay and maximizing the reliability of paths between IoT devices and the fog server. We propose a novel approach that takes advantage of machine learning (ML) and multi-objective optimization (MOO) based techniques. The reliability of links is evaluated using an ML-based algorithm in an SDN-enabled multi-hop scenario for the IoT-Fog environment. By considering the two conflicting objectives, the MOO algorithm is used to find the Pareto-optimal paths. Our experimental evaluation considers two applications with different QoS requirements -a real-time application (App-1) using UDP sockets and a task offloading application (App-2) using TCP sockets. Our results show that: (i) the trade-off between the two objectives can be optimized, and (ii) the SDN controller was able to make adaptive decision on-the-fly to choose the best path from the Pareto-optimal set. The App-1, communicating over the selected path finished its execution in 13% less time than communicating over the shortest path. The App-2 had 41% less packet loss using the selected path compared to using the shortest path.
