فیلترها/جستجو در نتایج    

فیلترها

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بانک‌ها




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متن کامل


نویسندگان: 

KAUCHER E.

نشریه: 

COMPUTING SUPPLEMENTUM

اطلاعات دوره: 
  • سال: 

    1980
  • دوره: 

    2
  • شماره: 

    -
  • صفحات: 

    33-49
تعامل: 
  • استنادات: 

    1
  • بازدید: 

    220
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

شاخص‌های تعامل:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

بازدید 220

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نویسندگان: 

نشریه: 

Dicle Tip Dergisi

اطلاعات دوره: 
  • سال: 

    0
  • دوره: 

    46
  • شماره: 

    1
  • صفحات: 

    27-32
تعامل: 
  • استنادات: 

    1
  • بازدید: 

    153
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

شاخص‌های تعامل:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

بازدید 153

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نویسندگان: 

Ramezani Malihe | Biuck Mohsen | Nikunahad Ayob

اطلاعات دوره: 
  • سال: 

    1401
  • دوره: 

    7
  • شماره: 

    2
  • صفحات: 

    23-54
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    144
  • دانلود: 

    7
چکیده: 

Purpose: The flourishing of political parties and currents is one of the signs of the degree of development in societies. In contemporary Iran and since the formation of the constitutional movement, political currents have gone through many ups and downs and it can be said that political currents in Iran after the Islamic Revolution have not yet reached the stage of institutionalization and stability. A characteristic feature of political currents in Iran is the divergence and division among political currents in recent decades, and this can be one of the reasons for the instability and cross-sectional and seasonal activity of political parties in Iran. Therefore, the necessity of leading research seeks to answer the question of how factors and divergence among political currents in Iran after the victory of the Islamic Revolution can be analyzed? And what are the scenarios for the advancement of political currents in Iran?Method: To answer this question, the method of causal-layer ANALYSIS, which is one of the qualitative methods in futures research, has been used.Findings: The research findings indicate that this divergence is due to a wide range of reasons from the level of causal systems (from the institutionalization of power to the formation of parties as elitist initiatives), worldview and discourse (from charismatic political authority to culture). Subsidiary-follower politics to myth-metaphor (Iranian individualism to belief in a strong state-weak society) can be analyzed.Conclusions: Three scenarios for the future of Iranian political currents can be considered: integration of currents as the security valve of the political system, the collapse of political currents in the traditional form, integration and consolidation in new social movements (virtualized parties).

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بازدید 144

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مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources
اطلاعات دوره: 
  • سال: 

    2008
  • دوره: 

    5
  • شماره: 

    16
  • صفحات: 

    29-35
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    348
  • دانلود: 

    0
چکیده: 

In this paper, we introduce the revenue efficiency INTERVAL of a DMU. The revenue INTERVAL DEA model has been formulated to obtain an efficiency INTERVAL in which the lower bound and upper bound of this INTERVAL are respectively, the efficiency obtained from pessimistic and optimistic viewpoints.

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اطلاعات دوره: 
  • سال: 

    2013
  • دوره: 

    45
  • شماره: 

    1
  • صفحات: 

    1-8
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    289
  • دانلود: 

    0
چکیده: 

Workspace ANALYSIS is one of the most important issues in the robotic parallel manipulator design. However, the unidirectional constraint imposed by cables causes this ANALYSIS more challenging in the cable driven redundant parallel manipulators. Controllable workspace is one of the general workspace in the cable driven redundant parallel manipulators due to the dependency on geometry parameters in the cable driven redundant parallel manipulators. In this paper, a novel tool is presented based on INTERVAL ANALYSIS for determination of the boundaries and proper assessment of the enclosed region of controllable workspace of cable-driven redundant parallel manipulators. This algorithm utilizes the fundamental wrench interpretation to analyze the controllable workspace of cable driven redundant parallel manipulators. Fundamental wrench is the newly definitions that opens new horizons for physical interpretation of controllable workspace of general cable driven redundant parallel manipulators. Finally, the proposed method is implemented on a spatial cable driven redundant manipulator of interest.

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بازدید 289

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اطلاعات دوره: 
  • سال: 

    1397
  • دوره: 

    21
  • شماره: 

    6 (پیاپی 135)
  • صفحات: 

    26-33
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    610
  • دانلود: 

    166
چکیده: 

زمینه و هدف: سانسور فاصله ای در مطالعات پزشکی در داده هایی که به صورت دوره ای تکرار می شوند رخ می دهند. روش های مرسومی به منظور بررسی این نوع داده وجود دارد. هدف از انجام این مطالعه، بررسی تکنیک جانهی تصادفی در تجزیه و تحلیل داده های سانسورشده فاصله ای است. مواد و روش ها: با استفاده از تکنیک شبیه سازی مونت کارلو به ارزیابی توان این روش می پردازیم و هم چنین در نهایت با استفاده از مجموعه داده واقعی عملکرد آن را ارزیابی می کنیم. این مجموعه داده مربوط به اطلاعات دندان پزشکی شهر ارومیه است که شامل 207 کودک بوده است. تمام محاسبات با استفاده از نرم افزار R 3. 2. 3 انجام گرفته است. یافته ها: نتایج حاصل از شبیه سازی نشان می دهد که توان آزمون محاسبه شده در تکنیک جانهی تصادفی خوب و قابل قبول است. مقدار p حاصل در داده های واقعی نشان می دهد که با استفاده از تکنیک جانهی تصادفی تفاوتی وجود ندارد. نتیجه گیری: روش جانهی تصادفی در مقایسه با سایر روش های مرسوم به عنوان یک روش جایگزین می تواند مورد استفاده قرار بگیرد.

شاخص‌های تعامل:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources
اطلاعات دوره: 
  • سال: 

    1400
  • دوره: 

    52
  • شماره: 

    2
  • صفحات: 

    97-108
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    158
  • دانلود: 

    15
چکیده: 

Recognition and understanding the genetic control of traits, combining ability and genetic structure are directly related to the success of breeding programs. For this purpose, a 7 × 7 one-way diallel design was conducted in a randomized complete block design with three replications. The measured traits were included plant height, height to the first capsule, number of days to 50% and 90% of flowering, number of capsules per plant, number of seeds per capsule, number of days to physiological ripening, number of branches, leaves number and length, 1000-seeds weight, capsule weight, length and width, chlorophyll a, b and total chlorophyll, biological andeconomic yields, harvest index, oil and protein percentage. ANALYSIS of variance showed that there was a significant difference between genotypes and diallel ANALYSIS showed that the additive variance of all traits and dominant variance of all traits except height to the first fruit-bearing capsule were significant. The oltan cultivar was the best and Ardestan genotype was the worst genotype in terms of general combining ability. Sabzevar×TS-3 and Sirjan×Fars were the best hybrids in most traits. The general heritability was between 0.90 to 0.96 for biologic yield and number of branches, respectively and narrow heritability was between 0.36 to 0.91 for the number of branches and harvest index, respectively. The ANALYSIS of variance by Hayman method confirmed the results of Griffing ANALYSIS.

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بازدید 158

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اطلاعات دوره: 
  • سال: 

    1402
  • دوره: 

    13
  • شماره: 

    4
  • صفحات: 

    61-83
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    43
  • دانلود: 

    9
چکیده: 

As the most complex manufactured structures, cities face excessive population growth. Their expansion has intensified on high-risk sites, and the available evidence also indicates the continuous increase of all types of natural crises in terms of intensity and frequency. Scientific and experimental findings show that the best way to deal with danger is to promote the resilience of settlements in different dimensions (social, economic-livelihood, physical-spatial and institutional); in other words, resilience in both human and environmental dimensions comprehensively. It decreases and increases. This research has evaluated and analyzed the components of resilience in Sari. The method of the present study is applied in terms of purpose and descriptive-analytical and field in nature. The statistical population in this research includes citizens living in the four districts of Sari, and the sample size was determined based on Cochran's formula of 383 people, who were selected from among the statistical population by stratified sampling. The questionnaire is the method of collecting library and field information and its most important tool. For data ANALYSIS, descriptive and inferential statistics (one-sample t-test and structural equation modeling) were used by SPSS and Smart PLS software, and entropy and SAW models were exerted. The research results indicate that the situation of the four regions of Sari regarding social components has better conditions than other dimensions of resilience. In terms of institutional components, they have a vulnerable state. According to the entropy model, among the components of resilience, the institutional dimension has the most weight, and the economic dimension has the least weight. Moreover, according to the SAV model, Region 1 ranks first, and Region 3 of Sari ranks last in having the components of resilience dimensions.

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بازدید 43

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نویسندگان: 

حیدری ج. | منتصری م.

اطلاعات دوره: 
  • سال: 

    0
  • دوره: 

    -
  • شماره: 

    2
  • صفحات: 

    0-0
تعامل: 
  • استنادات: 

    1
  • بازدید: 

    443
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

شاخص‌های تعامل:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

بازدید 443

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اطلاعات دوره: 
  • سال: 

    1402
  • دوره: 

    2
  • شماره: 

    3 (پیاپی 5)
  • صفحات: 

    51-61
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    190
  • دانلود: 

    26
چکیده: 

Purpose: Food security is a critical global challenge that is influenced by research and innovation in the field. Therefore, the objective of this study is to analyze the scientific output of developing countries in food security and examine its relationship with patents and Gross Domestic Product (GDP).Methodology: This applied research utilized the Scientometric approach. A total of 8,416 papers published between 1992-2023 in the field of food security by developing countries were included in the study using citation databases from Clarivate Analytics. Additionally, patent registrations from the WIPO database and GDP data from the World Bank were analyzed. Information was collected through note-taking, and the data was analyzed using Pearson's correlation coefficient.Findings: The findings reveal an upward trend in the publication and citation of scientific outputs related to food security in developing countries. China has higher numbers of papers, patents, GDP, and food production index compared to Iran, Japan, and South Korea. There is also a positive correlation observed between population and the number of papers, gross production and the number of papers, food production and the number of published papers, as well as the number of patents and papers citing scientific outputs of countries.Conclusion: These results highlight the significant relationship between increasing scientific output, GDP, the number of patents, and food security. Greater emphasis on food security contributes to enhanced scientific output, GDP, and innovation. Similarly, increasing scientific output, GDP, and innovation positively impact food security in countries.Value: This study emphasizes the importance of scientific outputs in driving technological advancements, innovations, and ultimately, ensuring food security in developing countries.

شاخص‌های تعامل:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

بازدید 190

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resourcesدانلود 26 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resourcesاستناد 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resourcesمرجع 0
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