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مرکز اطلاعات علمی SID1
مرکز اطلاعات علمی SID
مرکز اطلاعات علمی SID
مرکز اطلاعات علمی SID
مرکز اطلاعات علمی SID
مرکز اطلاعات علمی SID
مرکز اطلاعات علمی SID
اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    162
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

DECIDING IN COMPLEX AND DYNAMIC ENVIRONMENTS SUCH AS CYBERSPACE, WHICH IS ASSOCIATED WITH RAPID CHANGES AND DIVERSITY HAVE HIGH RISK. UNFORTUNATELY, MOST RESEARCH ON CYBER STATE AWARENESS HAS FOCUSED ON TECHNOLOGY AND HAS NOT PAID MUCH ATTENTION TO HUMAN-BASED DECISIONS. WHILE IN CRITICAL SITUATIONS, SUCH AS REAL-TIME ATTACKS, THERE IS A NEED FOR HUMAN INTERVENTION IN DECISION MAKING. FOR THIS REASON, CYBER SECURITY PROFESSIONALS AND MANAGERS NEED A MODEL OR FRAMEWORK FOR MAKING DECISIONS THAT ARE APPROPRIATE TO ANY SITUATION CAUSED BY CYBER SECURITY CRISES. IN THIS RESEARCH, WE WILL INTRODUCE THE CYNEFIN FRAMEWORK AND HOW IT WILL BE USED TO MAKE THE RIGHT DECISION IN DEALING WITH THE VARIOUS SITUATIONS CAUSED BY A CYBER-ATTACK TO REDUCE RISK. IN ADDITION TO MAPPING THE SITUATIONS OF CYBERATTACK IN THE HYPOTHETICAL SCENARIO ON THE FIVE DOMAINS OF THE CYNEFIN FRAMEWORK, SUCH AS DISORDER, OBVIOUS, COMPLICATED, COMPLEX, AND CHAOTIC, WE WILL EVENTUALLY SHOW HOW THE CYNEFIN FRAMEWORK CAN HELP PROFESSIONALS AND MANAGERS RECOGNIZE THE CURRENT STATE OF AFFAIRS AND THE APPROPRIATE RESPONSE IN COMPLEX CONDITIONS, BASED ON THE RELATIONSHIP OF CAUSE AND EFFECT.

آمار یکساله:  

بازدید 162

دانلود 0
نویسنده: 

ZIYAEI MEHRDAD | SAJEDI SEYED FATHOLLAH

اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    80
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

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

آمار یکساله:  

بازدید 80

دانلود 0
نویسنده: 

ZIYAEI MEHRDAD | SAJEDI SEYED FATHOLLAH

اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    32
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

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

آمار یکساله:  

بازدید 32

دانلود 0
نویسنده: 

ZAREEI HASSAN | SAJEDI SEYED FATHOLLAH

اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    48
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

IN THIS RESEARCH, THE FEASIBILITY OF MAKING LIGHTWEIGHT CONCRETE WITH THE USE OF VERMICULITE WAS INVESTIGATED. TO THIS END, 18 MIXING DESIGNS WERE CONSTRUCTED WITH WATER TO CEMENT RATIOS OF 0. 3 AND 0. 4. THEN, COMPRESSIVE STRENGTH TEST WAS PERFORMED ON STANDARD CUBIC SPECIMENS CURED IN WATER AT THE AGE OF 7 AND 28 DAYS. ALSO, A THREE-POINT STANDARD FLEXURAL TEST WAS PERFORMED ON STANDARD BEAMS WHICH WERE CURED FOR 28 DAYS IN WATER. THE STATIC ELASTICITY MODULUS TEST WAS PERFORMED ON STANDARD CYLINDRICAL SPECIMENS THAT WERE CURED IN WATER FOR 28 DAYS. SLUMP AND SPECIFIC GRAVITY TESTS FOR ALL CONCRETE DESIGNS WERE ALSO PERFORMED AND THE OBTAINED RESULTS SHOWED THAT CONCRETE SPECIFIC GRAVITY DECREASED. BASED ON THE RESULTS, IT WAS OBSERVED THAT WITH INCREASING THE PERCENTAGE OF VERMICULITE, THE ELASTIC COEFFICIENT OF THE CONCRETE WAS INCREASED, BUT THE COMPRESSIVE AND FLEXURAL STRENGTHS DECREASED. ALSO, THE RESULTS SHOWED THAT BY REPLACING VERMICULITE WITH A PERCENTAGE OF AGGREGATES, LIGHTWEIGHT CONCRETE COULD BE AVAILABLE WITH SPECIFIC GRAVITY IN THE RANGE FROM 1931 TO 1982 KG/M 3 AND COMPRESSIVE STRENGTH FROM 17. 1 TO 18. 5 MPA.

آمار یکساله:  

بازدید 48

دانلود 0
اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    46
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

THE HUMAN AND GENDER IDENTITY OF WOMEN IS ONE OF THE IMPORTANT FOUNDATIONS IN THE FIELD OF WOMEN'S STUDIES. THERE ARE DIFFERENT PERSPECTIVES IN THIS REGARD, IN WHICH THE IDENTITY OF FEMININITY AND MASCULINITY ARE ANALYZED AND ANALYZED ON THE MARGINS OF DIFFERENT PHILOSOPHIES AND APPROACHES. IN THIS ARTICLE, WE ARE GOING TO ANSWER THE FOLLOWING QUESTION: IS IT FROM THE PERSPECTIVE OF ISLAMIC WISDOM GENDER IS REAL OR A SOCIAL CONSTRUCTION PHENOMENON OR A COMBINATION OF BOTH? TO ANSWER THIS QUESTION, WE EXAMINED AND COMPARED THE DIFFERENT PERSPECTIVES AND WE USED THE METHOD OF RATIONAL ANALYSIS, AND IT WAS CONCLUDED THAT GENDER DID NOT DEVELOP COMPLETELY AND COMPLETELY. THERE ARE DIFFERENCES BETWEEN THE SEXES BETWEEN MEN AND WOMEN, ALTHOUGH THE COMMUNITY CAN STRENGTHEN, WEAKEN OR DESTROY IT.

آمار یکساله:  

بازدید 46

دانلود 0
نویسنده: 

BATENI ZOHREH | HADIGOL BAHAREH

اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    38
  • دانلود: 

    0
چکیده: 

VEHICULAR AD HOC NETWORK (VANET) IS A DYNAMIC NETWORK TOPOLOGY WITH WIRELESS MEDIA INFRASTRUCTURE. IN ADDITION VEHICULAR AD HOC NETWORK, ACCESS TO SAFETY AND ENTERTAINMENT PROGRAMS IS PROVIDED ON THESE NETWORKS. SUCH AS INFORMATION ON ROAD CONDITIONS, TRAFFIC CONDITIONS, CRASH REPORTS, AND MORE… , AND THIS VARIETY HAS BECOME MORE DEVELOPMENT THE VEHICULAR AD HOC NETWORK. SINCE THE SECURITY OF THESE NETWORKS IS INVOLVED WITH EVERYDAY LIFE AND EVEN HUMAN LIVES, SO ONE OF THE MAJOR STUDIES IN THE DEVELOPMENT OF THE INTELLIGENT TRANSPORTATION SYSTEM (ITS) IS TO CHECK THE SECURITY OF THESE NETWORKS. DUE TO THE FEATURES OF THIS NETWORK, SUCH AS BANDWIDTH RESTRICTIONS, PERMANENT INFORMATION EXCHANGE, NEED TO RESPOND TIMELY AND MORE, CERTAIN SECURITY ARCHITECTURES SHOULD BE CONSIDERED. IN THIS PAPER, THE SECURITY REQUIREMENTS OF THESE NETWORKS AND IMPORTANT OF ATTACKS IN VARIOUS AREAS HAVE BEEN STUDIED. MOREOVER SEVERAL SECURITY MECHANISMS AND CHALLENGES HAVE BEEN STUDIED.

آمار یکساله:  

بازدید 38

دانلود 0
نویسنده: 

AZADI SAJAD

اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    56
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

IN THIS PAPER, WE INTEND TO IMPLEMENT THE AUGMENTED REALITY TO HELP MANAGE FIRE ACCIDENTS, BUT UNFORTUNATELY, THE BIGGEST CURRENT PROBLEM IN THE AUGMENTED REALITY OF MOBILE IS THE INABILITY OF THE NETWORK TO DO SO. INSTEAD OF USING THE VIDEO STREAMING METHOD, WE PLAN TO USE THE INTEGRATION OF WIRELESS SENSOR DATA, SITUATIONAL DATA, DATA FROM MANAGERS AND INCIDENT SPECIALISTS, AS WELL AS FROM VIDEO DATA FOR INTERCONNECTING AND ADDING DATA TO THE ENVIRONMENT AT TIMES. WE SHOW THAT IT IS POSSIBLE TO PROPERLY MANAGE UPLOADED DATA, AUGMENTED REALITY FOR THE MANAGEMENT OF FOREST FIRES AND PASTURES.

آمار یکساله:  

بازدید 56

دانلود 0
نویسنده: 

MOHAMMADI MAHSA | MOHAMMADI MAHTAB

اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    30
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

ALGEBRA IS ONE OF THE MOST EXTENSIVE PARTS OF MAEMATICS ALGEBRAIN ITS MOST GENERAL DEFINITION IS THE STUDY OF MATHEMATICAL SYMBOLSAND LAWS TO CHANGE THE SUBJECT; FIELD ALGEBRA IS ONE OF NEARLY ALLMATHEMATICS. THE PRIMARY SECTIONS OF ALGEBRA ARE CALLED PRIMITIVE ALGEBRA; THE MOST ABSTRACT PARTS ARE ABSTRACT ALGEBRA OR MODERN ALGEBRA. BASIC ALGEBRA IS CONSIDERED AS THE BASIS OF ANY STUDY OF MATHEMATICS, SCIENCE AND ENGINEERING, ECONOMICS AND MEDICINE. IN SOLVING PRACTICAL PROBLEMS, THERE ARE ISSUES THAT NEED TO BE OPTIMIZED. GIVEN THE PROBLEM STRUCTURE, WE CREATE A MODEL THAT ESTABLISHES RELATIONSHIP BETWEEN TWO OR MORE PARAMETERS, AND THE GOAL IS TO MAXIMIZE (OR MINIMIZE) THE RESULTING FUNCTION WE'LL BE HALF. ALGEBRA SCIENCE WAS FIRST STARTED BY THE EAST, AND SCIENTISTS SUCH AS "KHWARAZMI" AND "GHIASUDDIN JAMSHID KASHANI " WERE INFLUENTIAL IN THIS SCIENCE AND HAD THE MOST INTERESTING AND INTERESTING METHODS FOR CALCULATING. HOWEVER, AFTER DISCOVERING THE CONCEPT OF DERIVATION AND PROGRESS OF THE CALCULUS, NEW METHODS OF REPLACING METHODS PREVIOUSLY, IT SHOULD BE NOTED THAT IN SOME SCIENCES, FOR EXAMPLE, "RESEARCH IN OPERATIONS", THE USE OF DERIVATIVE FOR OPTIMIZATION IS NOT EFFECTIVE (MOSLEHIANI AND MIRZAOZIRI, 2005).

آمار یکساله:  

بازدید 30

دانلود 0
نویسنده: 

AGHAEE FIROUZABADI SEYED MOHAMMAD | ALLAHDADI AREZOU

اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    72
  • دانلود: 

    0
چکیده: 

THE CLOUD MARKET IS DESIGNED, IMPLEMENTED AND CONCEPTUALIZED AS A MARKET FOR THE TRANSACTION OF RESOURCES AND SERVICES. COSTUMERS AND SERVICE PROVIDERS HAVE DIFFERENT NEEDS AND GOALS IN THIS MARKET. COSTUMERS DEMAND THE LOWEST POSSIBLE PRICE WITH SOME GUARANTEED LEVELS OF SERVICE, AND PROVIDERS SEEK A STRATEGY TO ACHIEVE THEIR HIGHEST RETURN ON INVESTMENT. THE DESIGN OF OPTIMAL MARKET-BASED RESOURCE ALLOCATION, WHICH IS BENEFICIAL FOR BOTH CUSTOMERS AND PROVIDERS, IS A FUNDAMENTAL YARDSTICK FOR RESOURCE MANAGEMENT IN DISTRIBUTED SYSTEMS, ESPECIALLY IN CLOUD COMPUTING SERVICES. AS A RESULT, MARKET-BASED RESOURCE ALLOCATION MODELS ARE PROPOSED FOR CLOUD COMPUTING. THESE MODELS UTILIZE ECONOMETRIC APPROACHES SUCH AS BIDDING AND NEGOTIATION, SUGGESTING A FRAMEWORK FOR THE FUTURE OF THE CLOUD MARKET USING DOUBLE AUCTION. IN ORDER TO EVALUATE PERFORMANCE FROM AN ECONOMIC PERSPECTIVE, MATLAB SOFTWARE, A JAVA-BASED SIMULATOR, IS USED TO SIMULATE THE CLOUD COMPUTING ENVIRONMENT. THE RESULTS SHOWED THAT THE PROPOSED MULTI-UNIT DOUBLE AUCTION, EFFICIENT, RATIONAL AND HONEST, WITH A WEAK BUDGET BALANCE. SO FAR, THERE HAVE BEEN OFFERED A LOT OF BIDDING MECHANISMS THAT OFTEN INCORPORATE TRUSTWORTHINESS FOR THE CUSTOMER, WHILE HONESTY MUST BE ENSURED ON BOTH SIDES OF THE CLOUD, AND IN THIS ARTICLE WE EXAMINE HONESTY FOR BOTH SIDES.

آمار یکساله:  

بازدید 72

دانلود 0
نویسنده: 

AGHAEI MEHRAN

اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    56
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

SOFTWARE SECURITY IS AN IMPORTANT CHARACTERISTIC OF SOFTWARE, SOME OF THE CURRENT SOFTWARE SECURITY TESTING METHODS ARE OFTEN BASED ON THE ACCURATE PARAMETERS OR ON THE BASIS OF FUNCTION STRUCTURE, AND CANNOT ADAPT TO THE COMPLEX ENVIRONMENT AND SAFETY REQUIREMENTS, PARTICULARLY IN SCALE DISTRIBUTED ENVIRONMENT. BASED ON STOCHASTIC PETRI NETS (SPN) THEORY, THIS PAPER ANALYZES THE SECURITY OF THE APPLICATION SOFTWARE BY THE SPN RELIABILITY MEASUREMENT PARAMETERS, AND THEN REACT UP ON THE ANALYSIS AND DESIGN OF THE SOFTWARE SYSTEM, IN ORDER TO EXPLORE A KIND OF APPLICATION SOFTWARE SECURITY TESTING METHOD BASED ON SPN MODEL. WITH EXAMPLE ANALYSIS, THE METHOD CAN FIND THE DISABLE SYSTEM STATE OR STATE COMBINATION INTUITIVELY, RAPIDLY, AND EFFECTIVELY, MEANWHILE PROVIDES A NEW METHOD FOR THE APPLICATION SOFTWARE SECURITY TEST.

آمار یکساله:  

بازدید 56

دانلود 0
نویسنده: 

AZADI SAJAD

اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    36
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

TODAY, THE WORLD IS MOVING TOWARDS VISUAL TECHNOLOGIES. TECHNOLOGIES LIKE AUGMENTED REALITY AND VIRTUAL REALITY HAVE BEEN THE PIONEERS OF THIS ARENA, WHICH IS NOW EXPANDING AND EVOLVING. THE AUGMENTED REALITY IS VERY USER-FRIENDLY AND BECAUSE IT TAKES THE NECESSARY INFORMATION TO THE REAL WORLD, IT'S VERY EFFICIENT. AUGMENTED REALITY ON MOBILE DEVICES CANNOT BE IMPLEMENTED ALONE DUE TO ENERGY CONSTRAINTS, PROCESSING RESTRICTIONS AND MEMORY. THEREFORE, IT IS IMPERATIVE THAT POWERFUL SERVERS PERFORM THE NECESSARY PROCESSES, AND DISPLAY THE RESULT ON A MOBILE AUGMENTED REALITY HOST DEVICE. BUT THESE DATA SHOULD BE SENT/RECEIVED IN THE CONTEXT OF A COMMUNICATION NETWORK, BUT TODAY THERE IS NO MOBILE NETWORK CAPABLE OF LOADING VIDEO DATA FROM A MOBILE AUGMENTED REALITY DEVICE TO SERVERS. IN THIS PAPER, WE WILL ANALYZE SOLUTIONS TO OFFSET GRID CONSTRAINTS IN A FOREST.

آمار یکساله:  

بازدید 36

دانلود 0
نویسنده: 

HARATI RABEEH

اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    20
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

THE PURPOSE OF THE PRESENT STUDY WAS TO INVESTIGATE THE REFLECTIVE ACTION IN THE TEACHING PROCESS, WITH AN EMPHASIS ON THE THEORY OF SCHWAB, IN ORDER TO IDENTIFY THIS UNPLANNED SCHEME AND ITS EFFECTS IN THE EDUCATION SYSTEM. THE RESEARCH METHOD WAS DESCRIPTIVE-INTERPRETATION. BY EXPLAINING DIFFERENT PERSPECTIVES IN THIS FIELD, THE RESEARCHER EXPLORES THE VIEW OF SCHWAB AND DESCRIBES THE ROLE OF THE AGENT OF FICTION AND ITS CHARACTERISTICS. THEN THE VARIOUS ANGLES OF ACTING IN THE TEACHING ARE FIRST DESCRIBED AND THEN ANALYZED. THE FINDINGS SHOWED THAT FOOLISH ACTION IN TEACHING IS ONE OF THE FACTORS CONTRIBUTING TO LEARNING AND LEARNING. THE USE OF ARTISTIC PRACTICAL, ALONG WITH THEORY, CRITICAL READING AND ATTENTION TO THE RADICAL TERM, A CONCEPT SUCH AS CONTEMPLATION AND REFLECTION, SUGGESTS THE POSITIVE EFFECT OF SUBJECTIVE PRACTICE IN THE TEACHING PROCESS. BASED ON RESEARCH FINDINGS, IT CAN BE CONCLUDED THAT TEACHERS' TENDENCY TO THE ROLE OF REFLECTIVE PRACTITIONER IS ABLE TO CREATE OPPORTUNITIES FOR THE EDUCATIONAL SYSTEM TO SOLVE PROBLEMS. TURNING ATTENTION TO THE ROLE OF THE TEACHER, AS A TALENTED, CREATIVE, TALENTED TEACHER OF ART.

آمار یکساله:  

بازدید 20

دانلود 0
اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    42
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

TODAY, EXPLOITATION OF A VEHICULAR AD HOC NETWORK CAN SIGNIFICANTLY IMPROVE TRAFFIC SAFETY AND ROAD PRODUCTIVITY, AND REDUCE ENVIRONMENTAL IMPACT. GENERALLY, THE SERVICES PROVIDED ON THE VEHICULAR NETWORK INCLUDE TRAFFIC INFORMATION FOR DRIVERS SUCH AS ACCIDENT INFORMATION, EMERGENCY CONDITIONS, WEATHER FORECASTING AND SHARING MULTIMEDIA INFORMATION, WHICH HELPS DRIVERS TO SAFETY. BUT THE ISSUE OF SECURITY AND PRIVACY IS A MAJOR CHALLENGE IN FAILING TO COMMUNICATE IN A VEHICULAR NETWORK ENVIRONMENT. TO ENSURE THE ACCURACY OF THE INFORMATION, THE MESSAGE SENDER MUST BE AUTHENTICATED TO PREVENT DENIAL OF THE VEHICULAR NETWORK. BUT THE PROBLEM IS DRIVERS FOR THEIR PRIVACY DO NOT HAVE THE DESIRE TO AUTHENTICATE FOR TRACKING AND THE NEXT PROBLEMS. THEREFORE, ANONYMOUS AUTHENTICATION IS ONE OF THE MAIN CHALLENGES OF THE VEHICULAR NETWORK. IN THIS ARTICLE, WE REVIEW THE STRATEGIES PROPOSED FOR PRIVACY AND WE PUT THEM IN THREE CATEGORIES: PSEUDONYMS, GROUP SIGNATURE, COMBINED METHOD.

آمار یکساله:  

بازدید 42

دانلود 0
نویسنده: 

BOHLOULZADEH ATOUSA | RAJAYI MEHRI

اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    46
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

WIRELESS SENSOR NETWORKS ARE COMPOSED OF A NUMBER OF SENSOR NODES, WHICH ARE LIMITED IN TERMS OF RESOURCES FOR COMPUTING, STORAGE, COMMUNICATION BANDWIDTH AND THE MOST IMPORTANT, ENERGY. ONE OF THE MAJOR CHALLENGES IN THESE NETWORKS IS CONGESTION CAUSED BY FACTORS SUCH AS PACKET COLLISION, NODE BUFFER OVERFLOW, TRANSMISSION CHANNEL CONTENTION, TRANSMISSION RATE, AND MANY-TO-ONE DATA TRANSMISSION SCHEME FROM MULTIPLE NODES TO SINK NODE AND AFFECT THE QUALITY OF SERVICE PARAMETERS IN SENSOR NODES AND ENERGY CONSUMPTION. THEREFORE, CONGESTION CONTROL IS ONE OF THE MOST IMPORTANT FIELDS IN WIRELESS SENSOR NETWORKS AND REQUIRES THE DEVELOPMENT OF MORE SOPHISTICATED TECHNIQUES TO AVOID, DETECT AND CONTROLLING IT. IN THIS PAPER, EXISTING CONGESTION CONTROL METHODS ARE EXAMINED A NEW CATEGORY IS PRESENTED BASED ON THE COMBINATION OF CONTROL FOCUS POLICIES, THE TYPE OF ALGORITHM WHICH IS USED AND THE EFFECTIVE PARAMETER IN THE DETECTION AND CONTROL OF CONGESTION.

آمار یکساله:  

بازدید 46

دانلود 0
نویسنده: 

SAVOJ MOJDEH | NASRI SAEED

اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    44
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

EARLY DIAGNOSIS AND TREATMENT OF HEART FAILURE WILL HAVE A MAJOR ROLE IN REDUCING THE DEATHS OF PEOPLE AND REDUCING THE OCCURRENCE OF PHYSICAL DISABILITIES. MAGNETIC RESONANCE IMAGING (MRI) IS ONE OF THE WAYS TO DIAGNOSE AND DIAGNOSE DISEASE PROGRESSION. TO DATE, DIFFERENT METHODS AND ALGORITHMS HAVE BEEN IMPLEMENTED AND PRESENTED. TODAY, HEART DISEASE IS THE LEADING CAUSE OF DEATH WORLDWIDE. THERE ARE SEVERAL WAYS TO DIAGNOSE HEART DISEASE, INCLUDING METHODS SUCH AS CT SCAN, NUCLEAR MEDICINE, AND MRI, DUE TO THE HIGH ACCURACY OF THE MRI IMAGING METHOD OF THIS METHOD THAN THE NUCLEAR METHODS. YOU HAVE MORE MRI. AN ADVANCED MEDICAL IMAGING TECHNIQUE THAT PROVIDES A LOT OF INFORMATION ABOUT THE ANATOMY OF HUMAN SOFT TISSUES. THIS TECHNIQUE IS OFTEN USED TO DEPICT THE STRUCTURE AND FUNCTION OF THE HUMAN BODY. MRI CAN PRODUCE A PICTURE OF THE BODY WITH MUCH DETAIL IN EVERY DIRECTION.

آمار یکساله:  

بازدید 44

دانلود 0
اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    44
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

IRAN IS ONE OF THE WORLD'S SEISMIC REGIONS. ALONG WITH THE OCCURRENCE OF ANY EARTHQUAKE, A FAIRLY LARGE MOVEMENT OF ENERGY IS RELEASED ON THE SURFACE OF THE EARTH. IN EARTH HISTORY, EARTHQUAKES HAVE ALWAYS BEEN RECORDED AS A MAJOR HAZARD. CONSIDERING THE IMPORTANCE OF USING NEW ENERGIES AND REDUCING THE USE OF FOSSIL FUELS, SEISMIC ZONES SUCH AS IRAN CAN USE ENERGY FROM EARTHQUAKES AS AN OPPORTUNITY TO PROVIDE ALTERNATIVE ENERGY. BY CONTROLLING THIS ENERGY FOR GENERATING ELECTRICITY, A SUITABLE ALTERNATIVE CAN BE CREATED FOR FOSSIL FUELS IN SEISMIC AREAS. WITH THE PURPOSE OF CAPTURING THE KINETIC ENERGY OF THE EARTH AND STORING ELECTRICAL ENERGY FROM THE VIBRATION CAUSED BY EACH EARTHQUAKE, THE DESIGN OF SOFTWARE AND HARDWARE SYSTEMS CALLED THE GREEN SYSTEM * ARE USING A SPECIAL KIND OF PIEZOELECTRIC SENSORS THAT HAVE A RELATIVELY HIGH SENSITIVITY, OCCURRED. THE LABORATORY SAMPLE MADE HAS A GOOD ABILITY TO CREATE VOLTAGE AND DIRECT CURRENT OUTPUT OR STORAGE CAPACITY.

آمار یکساله:  

بازدید 44

دانلود 0
اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    110
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

IN RECENT YEARS, THE DEVELOPMENT OF NEW AND VALUABLE ICT TOOLS HAS PROVIDED EXTENSIVE FACILITIES AND NEW DIMENSIONS IN THE FIELD OF COMPETITION AND INNOVATION FOR ORGANIZATIONS. THE BOTTLENECKS AND COMPETITIVE PRESSURES OF SERVICE ORGANIZATIONS HAVE FORCED FIRMS TO REDUCE COSTS, INCREASE EFFICIENCY AND EFFECTIVENESS, INCREASE CUSTOMER SATISFACTION, MARKET SHARE, MORE PROFIT, AND ULTIMATELY SURVIVAL THROUGH IMPROVED PROCESSES. THEREFORE, MANY SERVICE ORGANIZATIONS PAY PARTICULAR ATTENTION TO THE QUALITY OF ELECTRONIC SERVICES AS A VITAL FACTOR IN CREATING AND MAINTAINING COMPETITIVE ADVANTAGE. IN THIS REGARD, MONITORING AND CONTINUOUS IMPROVEMENT OF THE QUALITY OF ELECTRONIC SERVICES CAN BE AN IMPORTANT AND INFLUENTIAL FACTOR. IN THE PRESENT STUDY, WE INVESTIGATE THE EFFECTS OF E-SERVICES QUALITY USING E-S-QUAL AND E-RECS-QUAL CRITERIA ON SATISFACTION LEVEL OF SOCIAL SECURITY AUDIENCES IN GUILAN PROVINCE. GIVEN THE FACT THAT RESEARCH IS CONDUCTED IN A REAL ORGANIZATION, IT IS APPLIED IN TERMS OF PURPOSE AND IN TERMS OF DESCRIPTIVE-SURVEY NATURE. THE POPULATION OF THE SURVEY IS GUILAN PROVINCIAL ORGANIZATION OF SOCIAL SECURITY AND SAMPLE SIZE OF 196 PEOPLE. DATA AND RESEARCH DATA WERE COLLECTED BY FIELD AND LIBRARY METHOD USING A QUESTIONNAIRE AND A NON-PROBABILISTIC SAMPLING METHOD WAS AVAILABLE. A STRUCTURAL EQUATION MODEL WAS USED TO ANALYZE THE PATH AND TEST HYPOTHESES. DATA ANALYSIS WAS DONE AT DESCRIPTIVE AND INFERENTIAL STATISTICS BY SPSS SOFTWARE AND SMART PLS. THE RESULTS OF THIS RESEARCH INDICATE THAT ALL OF THE MAIN AND COMPENSATORY DIMENSIONS OF THE QUALITY OF ELECTRONIC SERVICES ARE POSITIVELY AFFECTING THE LEVEL OF SATISFACTION OF THE SOCIAL SECURITY ORGANIZATION IN GUILAN PROVINCE.

آمار یکساله:  

بازدید 110

دانلود 0
اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    90
  • دانلود: 

    0
چکیده: 

THE MAIN PURPOSE OF THIS STUDY WAS TO IMPLEMENT THE IMPLEMENTATION OF CUSTOMER RELATIONSHIP MANAGEMENT IN ORDER TO IMPROVE CUSTOMER SATISFACTION IN THE FIRST COMPANY BY USING THE FUZZY INFERENCE SYSTEM DESIGN, MCI. E-CRM + FIS, WHICH FOR THE FIRST TIME IN THE FIELD OF RESEARCH RELATED TO THE SUBJECT IS PRESENTED. IN FACT, THE ISSUES OF THIS RESEARCH CAN BE THE AMBIGUITY AND FATIGUE OF THE DECISION-MAKERS IMPLEMENTING THE MANAGEMENT OF RELATIONSHIPS WITH THE ELECTRONIC CUSTOMER IN THE FIRST COMPANY BY COMBINING DIFFERENT WAYS TO IMPROVE CUSTOMER SATISFACTION IN THE FIRST COMPANY IN THE COMPANY AND IMPLEMENTATION OF THE ELECTRONIC MANAGEMENT SYSTEM OF CUSTOMER RELATIONSHIP. THE STAGES OF DESIGNING THE FUZZY INFERENCE SYSTEM, THE TOOLS FOR DETERMINING THE VARIABLES OF THE DECISION-MAKING MODEL AND ITS VALIDITY AND RELIABILITY HAVE BEEN STUDIED. FINALLY, THE SAMPLE SIZE OF THIS DISSERTATION IS EQUIVALENT TO 30 AVAILABLE AND WILLING COLLABORATORS TO COLLABORATE USING TWO NON-PROBABILISTIC SAMPLING METHODS (JUDGMENTS) AND A SNOWBALL SAMPLING. THE DATA RELATED TO THE MEASUREMENT TOOL 1 (MEASUREMENT TOOL OF THE EFFECTIVE VARIABLES ON THE IMPLEMENTATION OF RELATIONSHIP MANAGEMENT WITH ELECTRONIC CUSTOMER TO IMPROVE SUBSCRIBER SATISFACTION IN THE FIRST COMPANION) AT THE BEGINNING OF JULY 1397, AND THE DATA RELATED TO MEASUREMENT TOOL NO. 2 (VALIDATION TOOL "THE FUZZY INFERENCE SYSTEM FOR IMPLEMENTATION OF CUSTOMER RELATIONSHIP MANAGEMENT IN ORDER TO IMPROVE CUSTOMER SATISFACTION IN THE FIRST COMPANY") WAS COLLECTED IN MID-JULY 1397. IN THIS STUDY, THE SPSS SOFTWARE WAS USED FOR DESCRIPTIVE STATISTICS, AND THE MATLAB PROGRAMMING ENVIRONMENT WAS USED TO DESIGN THE FUZZY INFERENCE SYSTEM. FINALLY, USING THE OUTPUTS OF THE MCI. E-CRM + FIS SYSTEM, THE IMPLEMENTATION STATUS E-CRM RELATIONSHIP MANAGEMENT TO IMPROVE CUSTOMER SATISFACTION IN FIRST TIME COMPANION "BASED ON VARIABLES SUCH AS: E-CRM SYSTEM QUALITY INFORMATION; E-CRM SYSTEM QUALITY STATUS; E-CRM SYSTEM RESPONSE STATUS; SUBSCRIBER IDENTITY STATUS E-CRM AND E-CRM SYSTEM PERFORMANCE STATUS; IN FACT, THE FINAL DIFFERENCE BETWEEN THE OUTPUTS OF THE FUZZY INFERENCE SYSTEM OF THIS STUDY (MCI. E-CRM + FIS) AND THE MEAN OF EXPERT OPINIONS WAS NOT SIGNIFICANT AND WAS EQUAL TO 0. 065.

آمار یکساله:  

بازدید 90

دانلود 0
نویسنده: 

JALALI SAHAND

اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    64
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

THIS ARTICLE PROVIDES A STUDY ON CONCRETE FOLDED PLATES AND THEN PRESENTS CONSTRUCTION OF SEMI-PREFABRICATED CONCRETE FOLDED CEILINGS. THE RESULTS OF THE STUDY SHOW THAT THE SEMI-PREFABRICATED CONCRETE FOLDED CEILINGS HELPS REMOVING THE LIMITATIONS AND PROBLEMS ENCOUNTERED IN THE IMPLEMENTATION OF ON-SITE CONCRETE FOLDED CEILINGS AND ALSO IT INCLUDES MANY OTHER ADVANTAGES WHICH CAUSE THIS KIND OF CEILING TO BE ONE OF THE BEST ALTERNATIVES TO COVER LARGE SPANS, ESPECIALLY INDUSTRIAL BUILDINGS SPAN. IN ADDITION TO STUDYING THE ADVANTAGES AND DISADVANTAGES OF THESE TYPE OF CEILINGS, IMPLEMENTATION PROCESS AND EXECUTIVE DETAILS ARE PRESENTED IN THIS PAPER. THE METHOD OF THIS STUDY IS ANALYTICAL-DESCRIPTIVE AND BASED ON DOCUMENTARY STUDIES WHICH PROVIDES A STUDY ON TWO TYPES OF SEMI-PREFABRICATED CONCRETE FOLDED CEILINGS, RELIED ON CABLE AND BASED ON BEAM, AND THEIR IMPLEMENTATION PROCESS.

آمار یکساله:  

بازدید 64

دانلود 0
اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    56
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

THIS STUDY AIMED TO INFORM STAKEHOLDERS OF WHAT MIGHT BE NEEDED TO EMPOWER TEACHERS WITH THE SKILLS AND EQUIPMENT NECESSARY FOR THE INTRODUCTION OF THIS INNOVATION AND PROVIDE INFORMATION THAT COULD FACILITATE IMPLEMENTATION OF LOCAL LANGUAGE WITH FOCUS ON CULTURAL IDENTITY IN TEACHING ENGLISH IN INTERMEDIATE LEVEL SCHOOLS, WITH THE HOPE THAT SUCH PRACTICE COULD BE GENERALIZED THROUGHOUT THE EFL ENVIRONMENTS AT LARGE. THE VIEWS OF INTERMEDIATE LEVEL TEACHERS HAD NOT BEEN STUDIED PRIOR TO THIS RESEARCH. A MIXTURE OF QUALITATIVE AND QUANTITATIVE APPROACHES WAS USED IN THE DATA COLLECTION PROCESS. THE RESEARCHER DESIGNED A QUESTIONNAIRE AND AN INTERVIEW TO ASCERTAIN THE TEACHERS’ ATTITUDES, AND ALSO THE STATUS OF LOCAL LANGUAGE USAGE IN TEACHING ENGLISH IN THE CLASSROOMS IN ORDER TO CONSTRUCT CULTURAL IDENTITY DURING TEACHING IN THE CLASS, AND THE TEACHERS’ READINESS TO USE LOCAL LANGUAGE TO TEACH ENGLISH AND MOVE AWAY FROM FORMAL LANGUAGE (PERSIAN). THE RESULTS OF THE RESEARCH DISCLOSED THAT TEACHERS FELT THAT LOCAL LANGUAGE WAS EFFECTIVE DURING TEACHING ENGLISH SKILLS AND WOULD WELCOME THE IMPLEMENTATION OF LOCAL LANGUAGE IN INTERMEDIATE SCHOOLS, BUT OVERALL THEY FELT THAT MORE TRAINING AND INFORMATION WAS NEEDED FOR BETTER IDENTITY CONSTRUCTION.

آمار یکساله:  

بازدید 56

دانلود 0
نویسنده: 

SHIRPOOR PEYMAN

اطلاعات دوره: 
  • سال: 

    2019
  • دوره: 

    0
  • شماره: 

    16
تعامل: 
  • بازدید: 

    58
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

IN THIS PAPER THE INFLUENCE OF AIR FLOW AS A FORCE ON THE VIBRATION OF VOCAL FOLDS ARE MODELED. IN THE DISCUSSED MODEL, TWO-MASS NONLINEAR OSCILLATOR SYSTEMS WERE MODELED AND RESPONSE OF TIME, FREQUENCY AND, DISPLACEMENT-TIME ON TWO NODES WERE OBTAINED. ADDITIONALLY, THE RESPONSE OF TWO NODES TO THE MAXIMUM AND MINIMUM STRESS OF VOCAL FOLDS WERE RECORDED. THE MODEL IS EXTENDED TO THREE, FIVE, AND MORE MASS SYSTEMS, SYSTEMS WITH TIME VARIABLES AND THREE-DIMENSIONAL SYSTEMS, BUT ALSO SIMPLIFIED INTO ONE-MASS SYSTEM WITH COUPLED TWO-DIRECTION DEFLECTION AND DAMPING FUNCTIONS. THE CORRESPONDING MATHEMATICAL MODELS ARE THE SYSTEMS OF COUPLED SECOND-ORDER DIFFERENTIAL EQUATIONS WHICH DESCRIBE THE VIBRATIONS OF THE SYMMETRIC AND ASYMMETRIC VOCAL FOLDS. THE MODELS GIVE THE CONDITIONS FOR THE REGULAR AND IRREGULAR MOTIONS LIKE BIFURCATION AND DETERMINISTIC CHAOS IN VOCAL FOLDS. THE OBTAINED RESULTS ARE OF SPECIAL INTEREST FOR DETECTING THE PATHOLOGY OF VOCAL CORDS, WHEN THERE ARE NO VISUAL EFFECTS OF DISEASE.

آمار یکساله:  

بازدید 58

دانلود 0

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