NATIONAL CONFERENCE ON NEW TECHNOLOGIES IN ELECTRICAL AND COMPUTER ENGINEERING | Year:2018 | دوره:1 |Papers Count:8

IN THIS COMMUNICATION, STRUCTURE OF AN ULTRA COMPACT, UWB (ULTRA WIDEBAND), SIMPLE STRUCTURE, SINGLE FEED AS WELL AS CHEAP MICROSTRIP ANTENNA WITH TWO DIFFERENT LINEAR POLARIZATIONS FOR USING IN IOT (INTERNET OF THING) APPLICATION IS DESCRIBED. ACCORDING TO OUR APPROACH, ANTENNA COMPACTNESS IS ACHIEVED BY MEANS OF A MODIFIED CIRCULAR PATCH FOR CURRENT PATH ENLARGEMENT AND A PARTIAL SLOTTED GROUND PROVIDING ADDITIONAL DEGREES OF FREEDOM THAT HELP TO ACHIEVING IMPEDANCE MATCHING IN THE WHOLE FREQUENCY BAND. PROPOSED ANTENNA CONSISTS OF A CIRCULAR SLOTTED COPPER PATCH AND A PARTIAL MODIFIED GROUND PLANE PRINTED ON TWO SIDES OF LOW COST SUBSTRATE, FR4-EPOXY WITH DIELECTRIC CONSTANT 4.3 AND LOSS TANGENT 0.023. SIMULATED RESULTS PROVIDE GOOD RADIATION CHARACTERISTICS SUCH AS OMNIDIRECTIONAL RADIATION PATTERN, GOOD GAIN AND RETURN LOSS. THE ANTENNA HAS WIDTH IMPEDANCE BANDWIDTH FROM 3.1GHZ TO 11GHZ WITH VSWR<2 AS WELL FREQUENCY BANDWIDTH WITH S<-10 DB. THE PROTOTYPE IS FABRICATED WITH DIMENSIONS OF 11 MM WIDTH AND 15MM LENGTH WITH 1.6 MM THICKNESS (THE SUGGESTED ANTENNA OCCUPIES A SMALL SPACE WITH FOOTPRINT OF 165MM2) AND TESTED FOR IMPEDANCE MATCHING AND RADIATION CHARACTERISTICS OVER A LARGE FREQUENCY SPECTRUM. EXPERIMENTAL VALIDATION AND SIMULATION CHARACTERISTICS ARE IN GOOD AGREEMENT.

THIS ARTICLE PROVIDES A WAY TO IMPLEMENT A REAL-TIME SYSTEM FOR IMPLEMENTING A VIRTUAL STUDIO SOFTWARE FOR USING ALONGSIDE THE VIDEO MIXER AND REMOVING THE HARDWARE CURTAIN SPECIAL FOR USING IN LIVE PROGRAMS. USING THIS METHOD, THE COST OF PRODUCING VIDEO PRODUCTS IS REDUCED BECAUSE THE BULK OF THE COST OF PRODUCING VISUAL PRODUCTS IS THE COST OF THE DECOR AND STUDIO.DESPITE THE FACT THAT USING A HARDWARE CURTAIN, YOU CAN CREATE A VARIETY OF STUDIOS IN ONE STUDIO, BUT IT ALSO COSTING A LOT OF STUDIOS THAT WITH USING THIS TECHNOLOGY TO REMOVE THE HARDWARE CURTAIN IS PREVENTED FROM THE SAME COST. ON THE OTHER HAND, AGILE TECHNOLOGY WILL ALSO BE USED IN THIS APPROACH, ONE OF THE BENEFITS OF WHICH IS TO RECEIVE CUSTOMER FEEDBACK IN SHORT AND CONTINUOUS INTERVALS. AS YOU KNOW, THE PATH OF A SOFTWARE PROJECT CANNOT BE PLANNED FOR A LONG TIME FOR TWO REASONS: FIRST, THE ENVIRONMENT IS LIKELY TO CHANGE THE REQUIREMENTS, AND SECONDLY, THE REQUIREMENTS OF THE CUSTOMERS WILL BE CHANGED; THEREFORE, THE SOFT PROJECT SHOULD BE FLEXIBLE ENOUGH TO ACCEPT CHANGES IN THE LEVEL OF TECHNOLOGY.

HIGH STATISTICAL VARIATION OF STATIC RANDOM ACCESS MEMORY (SRAM) CELL BY NANO-TRANSISTORS IN COMBINATION WITH HIGH DENSITY CAUSES SOME MEMORY PERFORMANCE PROBLEMS.THEREFORE, PRESENTING AN ACCURATE STATISTICAL MODEL IS ONE OF THE KEY ISSUES IN DESIGNING OF SRAM MEMORY. THIS ARTICLE ANALYZES SENSITIVITY OF STATIC NOISE MARGIN (SNM) WITH DIFFERENT STATISTICAL VARIATIONS IN 6-TRANSISTORS (6T) AND 8-TRANSISTORS (8T) SRAM CELLS AND COMPARES STABILITY OF 6T AND 8T SRAM TRANSISTOR CELLS. THIS ARTICLE EXAMINES THE EFFECT OF FOUR SAMPLES OF DIFFERENT VARIATIONS ON THE STATISTICAL STABILITY OF 6T AND 8T CELLS INCLUDING: 1- THRESHOLD VOLTAGE VARIATIONS, 2- SUPPLY VOLTAGE VARIATIONS, 3- VARIATIONS IN WIDTH AND LENGTH OF THE DRIVER TRANSISTORS AND 4- WORD LINE VOLTAGE VARIATIONS. IN ALL THE EXAMINED VARIATIONS, IN 8T SRAM CELL, THE SNM WAS HIGHER THAN THE 6T SRAM CELL.

OFFLOADING AND ENERGY HARVESTING ARE TWO IMPORTANT METHODS IN THE CELLULAR COMMUNICATION. OFFLOADING DECREASES THE LOAD ON THE MOBILE NETWORK AND IMPROVES THE NETWORK CAPACITY AND COVERAGE. ON THE OTHER HAND, HARVESTING THE ENERGY FROM THE RADIO FREQUENCY (RF) ENERGY CAUSES THE DEVICES TO CONSUME LESS BATTERY AND CONSEQUENTLY PROLONGS THE USER EQUIPMENTS (UES) USAGE. IN THIS PAPER, WE OFFER A NEW APPROACH TO OFFLOADING AND ENERGY HARVESTING IN CELLULAR NETWORKS (CNS). IN OUR SCHEME, USERS ARE DIVIDED AMONG BASE STATION (BS) AND LOCAL ACCESS POINT (LAP) TO GET SERVICE. A UE IS CONNECTED TO BS OR LAP BASED ON THEIR CHANNEL CONDITIONS. WE FORMULATE OUR RESOURCE ALLOCATION SCHEME AS AN OPTIMIZATION PROBLEM AND SOLVE IT USING DUAL LAGRANGE APPROACH. OUR SIMULATION RESULTS SHOW THE IMPACT OF VARIOUS PARAMETERS ON THE INCREASE OR DECREASE OF THE TOTAL SUM RATE OF OUR CONSIDERED MODEL.

CORRESPONDENCE PROBLEM AND TRANSFORMATION FUNCTION ARE THE MAIN CHALLENGES IN REGISTRATION SO WE TRY TO SOLVE THESE PROBLEMS CONCURRENTLY TO ACHIEVE REASONABLE AND OPTIMUM RESULTS. WE EMPLOY NON-RIGID REGISTRATION AS A NON-RIGID POINT MATCHING PROBLEM. WE HAVE ALSO USED THE TPS–RPM ALGORITHM. IN ADDITION THE BINARY CORRESPONDENCE IMPROVED TO FUZZY CORRESPONDENCE THROUGH THE MEANING OF SOFT-ASSIGN AND DETERMINISTIC ANNEALING.TPS-RPM IS APPLIED ON MS LESION IN MRI IMAGES WHICH ACHIEVED CONSECUTIVE WEEKS TO FOLLOW UP THE FLUCTUATION.WE COMPARE THE ITERATED CLOSEST POINT ICP’S RESULT TO TPSRPM IN ORDER TO DEMONSTRATE THE POWER OF THE TPS-RPM. OUR COMPARISON IS DONE BY EVALUATED METRICS SUCH AS DICE SIMILARITY MEASURE AND ACCURACY OBTAINED 0.87 AND 0.88 IN ICP, RESPECTIVELY. FOR TPS-RPM THE DICE SIMILARITY MEASURE AND ACCURACY ARE 0.9 AND 0.89, RESPECTIVELY.

IN THIS PAPER, THE DESIGN AND IMPLEMENTATION OF A PORTABLE PC BASED ON EMG SYSTEM TO CHECK THE HEALTH OF THE PILOT IN THE CABIN OF THE AIRCRAFT IS DISCUSSED. THE OBJECTIVE OF THIS PAPER IS TO PRESENT A REAL TIME PILOT MONITORING SYSTEM USING LABVIEW AND VISUAL STUDIO WHICH ENABLES CONTINUOUS MONITORING OF A PILOT AND HELPS THE DOCTORS WITH BETTER DIAGNOSIS.GENERALLY, THE PROJECT IS DIVIDED INTO THREE FOLLOWING SECTIONS: FIRST, SIGNAL PREPARATION BY AD8232, SECOND, ANALOG-TO-DIGITAL CONVERSION BY DAQ, AND THIRD, SIGNAL DISPLAY IN A COMPUTER. FIRSTLY, THE RECEIVED SIGNAL FROM A BODY IS AMPLIFIED BY AD8232 MODULE. AFTER THAT, THE ANALOG SIGNAL IS CONVERTED TO DIGITAL, AND SIMULTANEOUSLY THE INFORMATION IS SENT TO PC (DAQ) TO BE PRESENTED THROUGH SOME ENGINEERING SOFTWARE LIKE LABVIEW OR VISUAL STUDIO FOR THE DOCTORS IN ORDER TO DIAGNOSE FROM ANYWHERE IN THE WORLD (TELEMEDICINE). BENEFITS OF THE DEVICE INCLUDE THE ABILITY TO SEND HEART RATE TO ANOTHER SYSTEM REMOTELY THROUGH THE TCP / IP AND SOAP PROTOCOL, THE ABILITY TO COMMUNICATE VIDEO AND TEXT REMOTELY, DISPLAYING THE SIGNAL ON THE MOBILE PHONE.

SCADA NETWORKS HAVE IMPORTANT ROLE IN MODERN INDUSTRIES AND INFRASTRUCTURES. THUS, SECURE SCADA COMMUNICATION IS IMPORTANT FOR INDUSTRIES AND INFRASTRUCTURES.KEY MANAGEMENT SCHEME IS ESSENTIAL FOR SECURE SCADA COMMUNICATION. THIS PAPER PRESENTS AND EVALUATES NEW AND HIGH-PERFORMANCE KEY MANAGEMENT SCHEME BY USING CCS SCALAR MULTIPLICATION AND COMPACT SD MODULAR MULTIPLICATION FOR ENCRYPTION AND DECRYPTION. THE RESULTS DEMONSTRATE THAT THE PROPOSED CCS COMPACT SD KEY MANAGEMENT SCHEME PROVIDES AN IMPROVEMENT IN TERMS OF THE NUMBER OF REQUIRED MULTIPLICATION STEPS COMPARED TO OTHER KEY MANAGEMENT SCHEMES.

ENVIRONMENTAL CONCERNS INCLUDING AIR POLLUTION AND GLOBAL WARMING AS WELL AS LOW OPERATION COST HAVE ENCOURAGED POWER SYSTEM OPERATORS TO INCORPORATE MORE RENEWABLE ENERGY SOURCES (RESS) IN THEIR UTILITIES. SINCE MOST COUNTRIES ARE RECEIVING A SIGNIFICANT AMOUNT OF IRRADIATION FLUX, THE INCORPORATION OF PHOTOVOLTAIC (PV) SOLAR PLANTS IS IN RECEIPT OF AN INCREASING ATTENTION. THEREFORE, BIG SOLAR PLANTS WITH THE CAPACITY IN THE ORDER OF SEVERAL MWS HAVE BEEN INSTALLED GLOBALLY. DESPITE ITS ECONOMICALLY AND ENVIRONMENTALLY PROMISING ASPECTS, THEIR DYNAMIC BEHAVIOR IS DOMINATED BY CHARACTERISTICS AND CONTROLS OF POWER ELECTRONIC DEVICES WHICH AFFECTS DIFFERENT ASPECTS OF A POWER SYSTEM, PARTICULARLY ITS STABILITY. THUS, ANALYZING THE DYNAMIC PERFORMANCE OF POWER SYSTEMS INCLUDING A HIGH PENETRATION OF PV GENERATION IS VITAL. IN THIS REVIEW PAPER, THE IMPACT OF HIGH PENETRATION OF PV ON ROTOR ANGLE STABILITIES IS EVALUATED. RECENT WORKS AND THEIR DIFFERENT ASPECTS ARE CAREFULLY REVIEWED AND THE MOST IMPORTANT FEATURES OF EACH RESEARCH WORK ARE DISCUSSED IN DETAIL.