IoT Gas Leakage Detector and Warning Generator

This paper presents an industrial monitoring system design using the Internet of Things (IoT). The gas sensor (MQ-5) captured information is posted into a data cloud. The sensor detects the leakage of gas under most atmospheric conditions. All the components are controlled by an Arduino (UNO-1) that acts as a central processor unit in the setup t. As soon as a gas leakage is detected by the sensor, the alarm is raised in the form of a buzzer. This alarm is supported by an LCD to display the location of leakage, alert the observer, and activate the exhaust fan in the particular section to extract leaked gas. The requirement of a gas detection system is not only to monitor continuously the surroundings but also to help prevent the gas leakage hence minimizing the chances of fire and damage.

Structural Design of Land Grid Array Loading Mechanisms for Intel Central Processor Unit Stack Retention

For more than a decade, land grid array (LGA) has been one of the main central processor unit (CPU) packages developed at Intel and AMD, and widely used in different computer systems. LGA loading mechanism has become more critical to achieve mechanical, thermal, and electrical functions with the increasing retention force requirement. During the development of the loading mechanisms for LGA packages and sockets, socket pin contact to LGA pad under retention load, solder joint reliability under shock load, socket pin fretting under vibration, and load degradation are some of the key structural risks. This paper reviews the structural designs of different loading mechanism solutions systematically and summarizes the key structural concerns and advantages. While the finite element analysis (FEA) was used to guide the design options in early platform architectural definition, this review discusses the evolution of Xeon LGA loading mechanisms developed at the Intel Data Center Group.

APLIKASI PLC SEBAGAI PENGATUR ARAH PUTARAN MOTOR DC UNTUK MENGGERAKAN PMS PADA MINIATUR GARDU INDUK

Syarif Aripin, Moediyono, in this paper explain that experiment PLC module is a module that consists of modules and visual experiments. This experimental module consists of PLC (Programmeble Logic Controller) which contained PLC in Central Processor Unit (CPU), memory such as RAM (Radom Access Memory), EPROM (Erasable Programmable Only Memory), EEPROM (Electrical Erasable Programmeble Read Only Memory), input-output module and power supply units (Power supply). PLC is used as props in a series of applications to set the dc motor speed desired by mengguanakan input of the switch. OMRON PLC used is CP1EE with 40 I / O, ie 24 inputs and 16 outputs, PLC is used here as a regulator to enable drivers dc motor is used as a regulator dc motor rotation direction to move pms. In the later rounds measured measurement value is varied. The results of these measurements can be read on the voltmeter and ammeter. Keywords: Driver Motor, DC Motor, Omron PLC CP1E, PMS.

Research on Designing the Information Management Platform of Physical Education Based on B/S Model

This paper, by using multi-layer B/S framework model, combines with VB programming to carry out innovative design of physical education (PE) platform, which has got the B/S framework platform of PE management. PE information management platform mainly comprises the teacher end, the central processor unit (CPU) and the student end, where the communication interface mainly comprises the editor and the computer, and the input of teacher end includes the computer buttons, sensors, and so on. While for the core parts of the system, they are the CPU and the memory demonstrated by PE. Student end through the I/O expansion function analyzes and displays the teaching sound and video signal displayed by using LED or LCD. Finally, the paper designs the data analysis and transfer function of PE information platform, and obtains the curve of information throughput with time changing, which provides a new computer method for the research of PE.

Design of a Temperature-Constrained Governor to Save Energy in an Open Multi-Frequency Green Router

In the last years a new challenge turned out for both researchers and industries in telecommunications area is represented by green networks. Besides energy saving that is possible to achieve, another positive side effect of this is the reduction of the working temperature of internal components of telecommunications devices (switches, home gateway, routers, etc.). This idea is encouraging the development of routers of reduced dimensions as long as there is the knowledge that the temperature remains in a given range. For this reason the target of this paper is to propose a governor policy that provides the best trade-off between quality of service and energy saving in respect of a given target on the working temperature. More specifically, such a governor is in charge to manage the clock frequency of the Central Processor Unit (CPU) of the green router according to the traffic loading the router, varying the processing engine performance, the working temperature and the power consumption of the hardware at the same time. The proposed policy is then applied to a case study and evaluated by simulation to show how it can be used for the above purposes, and to allow green router designers to control the temperature statistics of a router and design the governor parameters to maintain the mean temperature below a given threshold.

A new CUDA-based GPU implementation of the two-dimensional Athena code

We present a new version of the Athena code, which solves magnetohydrodynamic equations in two-dimensional space. This new implementation, which we have named Athena-GPU, uses CUDA architecture to allow the code execution on Graphical Processor Unit (GPU). The Athena-GPU code is an unofficial, modified version of the Athena code which was originally designed for Central Processor Unit (CPU) architecture. We perform numerical tests based on the original Athena-CPU code and its GPU counterpart to make a performance analysis, which includes execution time, precision differences and accuracy. We narrowed our tests and analysis only to double precision floating point operations and two-dimensional test cases. Our comparison shows that results are similar for both two versions of the code, which confirms correctness of our CUDA-based implementation. Our tests reveal that the Athena-GPU code can be 2 to 15-times faster than the Athena-CPU code, depending on test cases, the size of a problem and hardware configuration.

Systems, Handheld Devices, and Payment Methods for Mobile Commerce

The emergence of wireless and mobile networks has made possible the introduction of electronic commerce to a new application and research subject: mobile commerce. Understanding or constructing a mobile commerce system is an arduous task because the system involves a wide variety of disciplines and technologies. This chapter tries to relieve this problem by giving careful studies of three themes of mobile commerce: (1) mobile commerce systems and transactions of which a system includes six components: (a) mobile commerce applications, (b) mobile handheld devices, (c) mobile middleware, (d) wireless networks, (e) wired networks, and (f) host computers; (2) mobile handheld devices, which are the communication devices between mobile applications and users and also include six major components: (a) a mobile operating system, (b) a mobile central processor unit, (c) a microbrowser, (d) input/output devices, (e) a memory, and (f) batteries; and (3) mobile payment methods, which include macro- and micro- payment methods. Other important issues, such as mobile commerce transactions and mobile security properties, are also discussed.

Mobile Handheld Devices for Mobile Commerce

With the introduction of the World Wide Web, electronic commerce has revolutionized traditional commerce and boosted sales and exchanges of merchandise and information. Recently, the emergence of wireless and mobile networks has made possible the extension of electronic commerce to a new application and research area: mobile commerce (MC), which is defined as the exchange or buying and selling of commodities, services, or information on the Internet through the use of mobile handheld devices. In just a few years, mobile commerce has emerged from nowhere to become the hottest new trend in business transactions. Despite a weak economy, the future of mobile commerce is bright according to the latest predictions (Juniper Research Ltd., 2004). Internet-enabled mobile handheld devices are one of the core components of a mobile commerce system, making it possible for mobile users to directly interact with mobile commerce applications. Much of a mobile user’s first impression of the application will be formed by his or her interaction with the device, therefore the success of mobile commerce applications is greatly dependent on how easy they are to use. This article first explains the role of handheld devices in mobile commerce systems and then discusses the devices in detail. A mobile handheld device includes six major components: (a) a mobile operating system (OS), (b) a mobile central processor unit (CPU), (c) a microbrowser, (d) input and output (I/O) devices, (e) memory, and (f) batteries. Each component is described, and technologies for the components are given.

Mobile Handheld Devices for Mobile Commerce

With the introduction of the World Wide Web, electronic commerce has revolutionized traditional commerce and boosted sales and exchanges of merchandise and information. Recently, the emergence of wireless and mobile networks has made possible the extension of electronic commerce to a new application and research area: mobile commerce (MC), which is defined as the exchange or buying and selling of commodities, services, or information on the Internet through the use of mobile handheld devices. In just a few years, mobile commerce has emerged from nowhere to become the hottest new trend in business transactions. Despite a weak economy, the future of mobile commerce is bright according to the latest predictions (Juniper Research Ltd., 2004). Internet-enabled mobile handheld devices are one of the core components of a mobile commerce system, making it possible for mobile users to directly interact with mobile commerce applications. Much of a mobile user’s first impression of the application will be formed by his or her interaction with the device, therefore the success of mobile commerce applications is greatly dependent on how easy they are to use. This article first explains the role of handheld devices in mobile commerce systems and then discusses the devices in detail. A mobile handheld device includes six major components: (a) a mobile operating system (OS), (b) a mobile central processor unit (CPU), (c) a microbrowser, (d) input and output (I/O) devices, (e) memory, and (f) batteries. Each component is described, and technologies for the components are given.

TERAHERTZ OPTICAL ASYMMETRIC DEMULTIPLEXER BASED ALL OPTICAL DATA COMPARATOR

An all-optical data comparator with the help of Terahertz Optical Asymmetric Demultiplexer (TOAD) is proposed. The paper describes the all-optical data comparator by using a set of all-optical full-adder and optical switch. Comparison between two binary data is required in many data processing systems. It is sometimes necessary to know whether a binary number is greater than, equal to, or less than another number. The all-optical data comparator can be used to perform a fast central processor unit using optical hardware components. In this present communication, we have tried to exploit the advantages of TOAD-based switch to design an integrated all-optical circuit which can perform data comparison operations.