PC Software Research Articles

Analytical calculation of time of reaching specific values based on visibility loss during a fire

Using an integral mathematical model of a fire considering the assumptions typical of a starting stage of a fire, analytical dependencies were obtained for determining the time of reaching a critical value of the density of a smoke screen in a premises with a fire epicenter and adjoining premises. By means of analytical formulas for determining critical evacuation time intervals based on visibility loss, table values for different parameters that are included in the original equations were obtained. Simple engineering analytical solutions that describe the dynamics of smoke formation in premises in case of a fire when used in a certain combination are presented. The obtained dependencies allow one to identify the critical time of evacuation with no use of special PC software as well as to obtain original data without calculating an anti-smoke ventilation system.

EDX analyisis of metal-ceramic interfaces of recasted nickel-chromium dental alloys

This research was performed to establish recasting effects of nickel-chromium dental alloys on the composition of their metal-ceramic interface in making fixed partial dentures. The metal-ceramic interface determines denture functional integrity and prevents damages on ceramics during mastication. Recycling of nickel-chromium alloys is often a practice, without detailed knowledge about possible effects on the composition of the metal-ceramic interface. Investigation of metal-ceramic samples is intended to show if base metal alloys for metal-ceramics are successfully recycled without any composition change in the metal-ceramic interface. The research was performed as an experimental study in which six metal-ceramic samples of nickel-chromium alloy ?Wiron 99? (Bego, Germany) were made. Alloy residues were recycled through twelve casting generations with the addition of 50 wt% of the new alloy on the occasion of every recasting. EDX analysis was performed by using the ?Inca X Sight? apparatus (Oxford Instruments, UK) and a SEM device JSM 6460 LV (JEOL, Japan). This appliance was used in conjunction with the PC software for quantification of chemical elements in order to determine the composition of metal-ceramic interfaces. Results of this research revealed significant differences between compositions of metal-ceramic interfaces in every examined recycle generation. Recasting had a negative effect on alloy components, which concentration is decreasing in the metal-ceramic junction zone. The concentration of cerium in the intermediate phase decreased the most, followed by concentrations of niobium, molybdenum, nickel and chromium. Results showed a permanent reduction of metal components up to the 12th generation of recycling. Cerium concentration (wt%) decreased from 28 to 16.26 %, nickel concentration from 3.31 to 1.82 % and chromium concentration from 2.95 to 2.03 %. Similarly, the molybdenum content decreased from 8.71to 4.68 wt%, while that of niobium from 9.82 to 3.97 wt%. Therefore, recasting of nickel-chromium alloys is not recommended because of changed composition of the metal-ceramic interface of these alloys.

A farmland-microclimate monitoring system based on the internet of things

Farmland's microclimate is a vital environmental factor that affects crop growth and yield formation. Based on clear perception, reliable transmission and intelligent processing of IoT concepts, a monitoring system of farmland microclimate is developed. The monitoring system consists of three layers. The perception layer integrates meteorological, soil, hydrological and other sensors to form a ground to air sensor cluster. The transport layer utilises the GPRS technology which covers the entire country for long distance and effectively transfers the collected data to the server in real time. The application layer is developed for receiving PC software and data storage. After three years of system operation, we have done statistical analysis on the length of life, the loss of data and the reliability of data. Results reveal that the system could ensure more than 80% of data integrity, and it can also secure good stability and reliability of the data.

The Design of High Speed Acquisition and Storage System Based on Labview

The design of high speed data acquisition and storage system is based on Labview. It can not only achieve high accuracy and high data rate but also use the software and hardware synchronization trigger to complete the multi-channel continuous real-time monitoring of the acquisition and storage periodic signal. Which is similar to the function of the oscilloscope. This system is based on high speed data acquisition card of NI company and Labview 2012 for PC software development platform. Data acquisition card is used to finish data acquisition of periodic signal through the serial port. It also collect data upload to upper computer. Upper computer collect data for storage display and analysis to realize the real-time monitor of multi-channel analog. The design of the sampling channel is 2, the sampling rate up to 200M/s, the sampling precision is 12 bits, and the sampling depth is 2000. Lots of verification prove that the design has good compatibility, performance and stability of the collection. Data error is negligible by analyzing the data collected. More importantly, the design can be as far as possible to restore the actual signal source data without distortion. This paper provides a portable design for high speed data acquisition, which can be widely applied in the engineering of modern test and measurement technology.

METAL STRUCTURES STRESSED AND STRAINED STATE MAGNETIC INSPECTION BY IN-02 THE SCANNING METAL STRAIN INDICATOR

Scanning metal strain indicator IN-02 instrument structure and outlines of operation based on residual magnetic field measurement above surface of steel part with metal under stress-strain state is described. A number of representative modes of information acquired, describing the stressed state of metal, are provided in the metal strain indicator IN-02 PC software application. Investigations carried on steel specimens have artificially made local areas with increased level of stress-strain state of metal resulted to relatively high magnetoelastic sensitivity of IN-02 instrument (relative to magnetic structurescopes series KRM-C). The circumstance given is shown to allow inspect stress-strain state by metal strain indi-cator IN-02 even if significant thickness of protective coating layer presented on the surface of metal. Several practical examples of steel parts and constructions stress-strain state magnetic inspection by metal strain indicator IN-02 in regular industrial conditions are also resulted. The magnetic inspections of stressed state of steel pipeline are resulted to contour plots, where closed contours encircle the local areas with increased level of stress-strain state of metal. The local areas with increased level of stress-strain state of metal are usually located on the pipe surface near the welds and have an arbitrary shape and size, varying from tens of millimeters to tens of centimeters. Further investigations suggested that the main cause of local areas with increased level of stress-strain state of steel pipes detected is residual stress of metal.

Photovoltaic Cells Mppt Algorithm and Design of Controller Monitoring System

This paper combined the advantages of each maximum power point tracking (MPPT) algorithm, put forward a kind of algorithm with higher speed and higher precision, based on this algorithm designed a maximum power point tracking controller with ARM. The controller, communication technology and PC software formed a control system. Results of the simulation and experiment showed that the process of maximum power tracking was effective, and the system was stable.

Brief Introduction on Working of Web Crawler

This Paper introduces a concept of web crawlers utilized as a part of web indexes. These days finding significant information among the billions of information resources on the World Wide Web is a difficult assignment because of developing popularity of the Web [16]. Search Engine starts a search by beginning a crawler to search the World Wide Web (WWW) for reports. Web crawler works orderedly to mine the information from the huge repository. The information on which the crawlers were working was composed in HTML labels, that information slacks the significance. It was a technique of content mapping [1]. Because of the current size of the Web and its dynamic nature, fabricating a productive search algorithm is essential. A huge number of web pages are persistently being included each day, and data is continually evolving. Search engines are utilized to separate important Information from the web. Web crawlers are the central part of internet searcher, is a PC program or software that peruses the World Wide Web in a deliberate, robotized way or in a systematic manner. It is a fundamental strategy for gathering information on, and staying in contact with the quickly expanding Internet. This survey briefly reviews the concepts of web crawler, web crawling methods used for searching, its architecture and its various types [5,6]. It also highlights avenues for future work [9].

Design and Acquisition of EOG Based Interactive Communications for ALS Patients

Amyotrophic lateral sclerosis (ALS) is a motor neuron disease caused by loss of function of spinal cord and brain stem nerve cells. Loss of function in nerve cells leads to weakness and explosion (atrophy) in the muscles. The outcome of the weakness in the muscles needs the help of someone. Despite the limitations of the movement, studies on methods of increasing the daily quality of life ALS patients are continuing. Electrooculogram (EOG) signals were taken from an instrumentation amplifier with 48dB gain and 107dB CMMR ratio. A 16Hz Low Pass Filter and a 50Hz Notch Filter were used to increase the signal to noise ratio. EOG signals are digitized with 10bit resolution ADC and applied to ATmega328 microcontroller. So, the software of microcontroller determines the horizontal and vertical movements of the eye. In this way, the interactive PC software was controlled by the EOG signals. EOG-based interactive software which was developed using the C # programming language has provided to patients' daily requirements, social media accounts etc. The system has been tested on healthy subjects and it has been seen that people can control the software by eye movements. As a result, system will be useful not only for ALS patients, but also for permanent or partially bedridden patient (MS, Hemiplegia, etc.) groups. And also, while the quality of life in the patients' own habitats is being raised, they will also be able to benefit from health services within the scope of home health services.

A Precision Data Acquisition and Control Platform for 200°C+ High Temperature Environments

Abstract In recent years there has been an increasing selection of commercially available electronic components specified for very high temperature (200°C+) operation, driven by the needs of harsh-environment applications such as oil and gas exploration/production, aerospace, heavy industrial, and automotive. However, there remains a significant technical challenge to integrate these components into reliable, high performance systems. In this paper we present a complete reference platform implementation of a precision multichannel sensor data acquisition and control system rated to 200°C. The design offers a complete sensors-to-bits solution using a low power 16-bit, 600kSPS SAR ADC and an ARM® Cortex®-M0 based microcontroller. The signal chain is optimized for precision performance and accurate measurements while maintaining low power and a small footprint. The reference platform is available off the shelf, including hardware design files, processor firmware source code, and PC software for data logging and display, offering design engineers a rapid development tool for prototyping and a faster path to production for even complex harsh-environment applications, reducing design risk and evaluation time.

The Lubrication Oil Wearing Particles Monitoring System with Three-coil Inductive Sensor

In the lubrication oil of the machinery devices, metal wearing particles reflect the wearing state in real time. Therefore, lubrication oil wearing particles monitoring system can identify the health state of the machinery devices. Based on the three-coil inductive sensor, this paper proposes the monitoring system including the exciting circuit, the detection circuit, the MCU system circuit and the host PC software. Experimental result shows that the proposed monitoring system can captures the output signal of the metal wearing particle.

Prediction of the HVAC Energy Demand and Consumption of a Single Family House with Different Calculation Methods

In this study a comparative energetic analysis is investigated of a single family house with different calculation procedures. One of the methods that were used is the Ministry without Portfolio Decree No. 7/2006 for energy certification and MSZ-140-04 for energy demand calculations (by using WinWatt computer software) that are a widely used in the Hungarian practice by HVAC designers and experts. Passive House Planning Package (PHPP) is also more and more common used PC software in Hungary due to the continuously tightening energy requirements. To see the differences and imperfections between these methods the heating, cooling and ventilation system was designed of a given single family house and the annual energy consumption was investigated with these methods. To perform the investigation in more detailed three different heating systems were designed. In the first case the heat source is a condensing boiler operated with floor heating. In the other two cases the thermal systems are heat pumps with floor and ceiling heating. One of the heat pumps is an air-to-water system, the other one is a geothermal heat pump. The advantages of the heat pumps are that heating, cooling and domestic hot water energy is produced by only one equipment and efficiency. However comparing investment and operating costs for the heat pumps with gas boiler the payback time is very long based on this study. The investment costs, payback periods are investigated for the three different systems evaluating the results also with PHPP and WinWatt computer software tools in this study.

Investigation of learning environment for arithmetic word problems by problem posing as sentence integration in Indonesian language

Arithmetic word problems remain one of the most difficult area of teaching mathematics. Learning by problem posing has been suggested as an effective way to improve students’ understanding. However, the practice in usual classroom is difficult due to extra time needed for assessment and giving feedback to students’ posed problems. To address this issue, we have developed a tablet PC software named Monsakun for learning by posing arithmetic word problems based on Triplet Structure Model. It uses the mechanism of sentence-integration, an efficient implementation of problem-posing that enables agent-assessment of posed problems. The learning environment has been used in actual Japanese elementary school classrooms and the effectiveness has been confirmed in previous researches. In this study, ten Indonesian elementary school students living in Japan participated in a learning session of problem posing using Monsakun in Indonesian language. We analyzed their learning activities and show that students were able to interact with the structure of simple word problem using this learning environment. The results of data analysis and questionnaire suggested that the use of Monsakun provides a way of creating an interactive and fun environment for learning by problem posing for Indonesian elementary school students.

Full-Automated Thermal Cycler in Nucleic Acid Testing Workstation.

Integrated automation in laboratory has recruited many traditional standalone devices provided by various vendors, however, because of semi-automatization or lack of standard control interfaces, current available devices are difficult to be integrated into workstation. This paper reported a full-automated thermal cycler system (AutoTCS) equipped with a typical 96-well thermo-cycler module, and especially with a well-designed sliding hot lid for polymerase chain reaction (PCR), which makes it very suitable for using in an automatic nucleic acid testing (NAT) workstation. By a PC software or the touch screen on AutoTCS with user-friendly graphical user interface (GUI), the presented system can not only serve as a PCR module of a NAT workstation, but also can be treated as a single PCR system. Experiments have demonstrated that the AutoTCS achieved a temperature accuracy of ±0.1 °C, a heating rate of approximately 2.5 °C/sec, and cooling rate of approximately 1.6 °C/sec. The AutoTCS was tested with PLCE1 gene and hepatitis B virus (HBV) DNA, and this had successfully achieved an excellent PCR performance.

Designation of Host Control Software for Wideband Signal Generator Based on CPCI Bus

In view of the requirement of controling the signal source in performance test, a host control software for wideband signal generatorator based on the technology of CPCI Bus is designed, which based on the VC and MATLAB joint programming, and has simple and friendly interface. After a series of test, communication through CPCI Bus of the software and the hardware of the wideband signal generatorator is proved correct, and it can draw the signal wave and correctly transfer parameters of the signal. It proves this PC Software has a good performance and achieves the controling requirement.

A Memory Efficient Pattern Matching Scheme for Regular Expressions

Many malicious packets are common and spread over the Internet in recent years when the scale of Internet traffic grows at a rapid speed. Thus, the regular expression matching in Network Intrusion Detection System (NIDS) that supervises network activities needs to be very fast and consume small memory. In this paper, we propose a memory efficient regular expression matching algorithm called Failureless Segmented Finite Automata (FSFA) with an acceptable searching speed. In FSFA, We eliminate Kleene closures by using additional data structures to reduce a large amount of states. We further reduce the transitions by using default state compression technique. Our performance results implemented on a PC software environment show that our scheme only needs 1% of states needed in DFA and 2 to 22% of states needed in JFA.

How to calculate pseudophakic and phakic toric implants?

SummaryDifferent calculation modalities for pseudophakic and phakic toric lens implants are discussed: what are the benefits and drawbacks of formula‐based and raytracing techniques? How could we set‐up our own calculation sheet in a standard PC software package? A step‐by‐step calculation is shown in a clinical example. When do we need customized software? How can we evaluate residual refractive error after axis displacement of the toric lens implant? A list of commercial and non‐commercial online calculators for toric lenses is shown.

FUNCTIONAL STATUS OF ATHLETS ANALYSIS UNDER THE ADAPTATION TO THE CYCLIC KIND OF SPORTS TRAINING LOADS

Непрерывное повышение спортивной результативности предъявляет всевозрастающие требования к качеству тренировочного процесса. Его совершенствование зависит от наличия устойчивой обратной связи между тренировочными воздействиями и адекватной реакцией на них организма спортсмена. В статье рассматриваются подходы комплексного исследования функционального состояния, на основе изучения его отдельных компонентов, в процессе подготовки юных лыжников и конькобежцев. Цель. Статья посвящена актуальному вопросу в работе тренеров – оценка функционального состояния организма юных спортсменов на основе изучения психического, нейродинамического, энергетического и двигательного компонентов. Метод и методология проведения работы. Основу исследования составляют: – тест «Простая зрительно-моторная реакция» (ПЗМР) до физической нагрузки и после нагрузки, характеризующий уровень возбудимости ЦНС и скорости распространения возбуждения по нервным цепям; – тест «Критическая частота слияния мельканий» (КЧСМ) до физической нагрузки и после нагрузки, – тест «Устойчивость корковых процессов» (УКП), Изучение функционального состояния ЦНС осуществлялось с помощью аппаратно-программного комплекса «НС-психотест», включающего программное обеспечение для IBM PC под управлением Windows и внешний высокоточный контроллер. Для оценки психического компонента исследовалось логическое мышление, внимание (таблица Шульта-Платонова) и память. Энергетический компонент исследовался с помощью теста Руфье. Результаты. Результат работы заключается в том, что выбор указанных методик определения функционального состояния спортсменов является оправданным, так как выявлены различия в исследуемых компонентов функционального состояния лыжников и конькобежцев. Это обусловлено различием спортивных специализаций, в каждой из которых механизмы энергетического обеспечения двигательных режимов различаются. Область применения результатов. Результаты исследования важны для организаторов тренировочного процесса молодых атлетов в циклических видах спорта. Данное исследование может послужить дальнейшему совершенствованию тренировочного процесса в циклических видах спорта.

Developing an IP Address Usage Measurement Index: The Case of South Korea

Background/Objectives: IPv6 adoption index of existing has a limit to survey. Also, the index can’t know actual usage because they measure readiness. Therefore, we improved the index to IPv6 usage measurement. Methods/Statistical Analysis: The usage measurement methods of IPv6 and case studies in domestic and international were examined. Then using the Delphi method, evaluation and verification of previous IPv6 measurement indices were conducted. Findings: The final improved IPv6 usage measurement index is categorized by ‘USER’ and ‘CONTENTS’. The USER indices are indices to measure terminals that are actually using IPv6. The CONTENTS indices are an index that measures whether content service providers support IPv6 for actual use. Meanwhile, infrastructure hierarchy can be the most appropriate measurement points to determine the current state of IPv6 during communication. But accurate measurement is currently not possible in terms of traffic flow. So, the index were deleted. Application/Improvements: There is a need to develop an accurate measurement of IoT terminal, mobile application and PC software. Also, developing method to the traffic measurement in infrastructure is needed.

Design and Simulation of a Wireless Sensor Network Greenhouse-Monitoring System Based on 3G Network Communication

A greenhouse provides a stable and suitable environment for the growth of plants. Temperature and humidity are closely related to plant growth. These factors directly affect the water content of plants and the quality of fruits. To solve the problems in the current monitoring system of greenhouse cultivation, such as complicated wiring, large node power consumption, and so on, this study proposes a wireless sensor network greenhouse-monitoring system based on third-generation network communication for the real-time monitoring of the temperature, humidity, light, and CO2 concentration in a greenhouse. GS1011M is regarded as the core in developing wireless terminal nodes. PC software is used to build a real-time observation platform. Sensor data are received in real time through a wireless communication network to complete the monitoring of the target area. A simulation research is also conducted. Results show that the power dissipation of the greenhouse environmental monitoring system is low, its data accuracy is high, and its operation is stable.

과거행동이 스마트폰 애플리케이션 불법복제 의도에 미치는 영향

모바일 기기의 급속한 확장은 모바일 애플리케이션 프로그램(앱) 시장의 폭발적인 성장을 가져왔다. 하지만 PC 소프트웨어, 동영상, 음원, 등 다른 디지털 컨텐츠와 마찬가지로 모바일 앱의 불법적인 유통이 보편적으로 이루어지고 있다. 본 연구에서는 모바일 앱 불법복제 행동 유발요인을 이해하기 위해서 행위의도에 미치는 요인에 대하여 분석하였다. 본 연구에서는 선행연구 분석을 바탕으로 계획된 행동이론 모형에 목적론적 요인과 과거행동 및 습관 요인을 추가하여 연구모형을 제시하고 수도권 대학생을 대상으로 실증하였다. 주관적 규범을 제외한 태도와 지각된 행동통제력은 행동의도에 영향을 미치는 것으로 나타났다. 과거 PC 소프트웨어 불법복제 경험은 스마트폰 앱 불법복제에 대한 태도, 지각된 행동통제력과 습관에 유의한 영향을 미쳤으며 습관은 행동의도의 중요한 예측변수로 나타났다. 지각된 이익은 태도에 영향을 미쳤으나 법적, 기술적 위험의 영향력은 유의하지 않은 것으로 확인되었다. Due to the expandability of smartphone, the mobile application market is growing explosively. However, as happens in other digital contents markets, piracy of mobile applications is prevalent. This study investigated the effects of behavioral factors on smartphone application piracy. The research model consists of factors from the theory of planned behavior model - subjective norms, attitudes toward piracy and perceptions of behavioral control. In addition, perceived consequences, past behavior and habit was included. The past behavior of PC software piracy was a meaningful predictor of habit, and habit was found to influence significantly the smartphone piracy intention. The result also shows that perceived benefit had significant effect on attitude, but both perceived legal and technical risk were not significantly related to attitude. Implications for research and practice are discussed.