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متن کامل


اطلاعات دوره: 
  • سال: 

    1392
  • دوره: 

    19
  • شماره: 

    74
  • صفحات: 

    189-209
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    1654
  • دانلود: 

    624
چکیده: 

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اطلاعات دوره: 
  • سال: 

    1403
  • دوره: 

    13
  • شماره: 

    4
  • صفحات: 

    61-83
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    44
  • 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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اطلاعات دوره: 
  • سال: 

    1401
  • دوره: 

    12
  • شماره: 

    47
  • صفحات: 

    75-93
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    160
  • دانلود: 

    11
چکیده: 

Background: THE expansion of THE use of audio and video media technology has faced society with many medical, cultural and economic challenges. In THE meantime, EXCESSIVE use of mobile phones can cause many problems. Objective: THE aim of this study was to construct and validate a questionnaire on physical and psychological injuries of mobile phones. Method: THE method of THE present study was descriptive-correlational and confirmatory factor analysis. THE statistical population of THE study consisted of all citizens of Khorramabad with a diploma or higher in 1399, which was selected as a statistical sample by available sampling method of 200 people online and virtual. Results: THE results showed that THE factorized physical and psychological harm questionnaire of cell phone with 42 questions and 10 components (fear of LOSS, vibration syndrome, duck syndrome, nomophobia, insomnia, hearing problem, eye syndrome, tunnel and neck syndrome SMS) and has good reliability, validity and flexibility in terms of psychometrics. Discussion and Conclusion: THE questionnaire of factor analysis of physical and psychological injuries of mobile phones can be used to identify and study THE physical and psychological injuries of mobile phones.

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نویسندگان: 

BOE E.E.

نشریه: 

ATHLETIC TRAINING

اطلاعات دوره: 
  • سال: 

    1991
  • دوره: 

    20
  • شماره: 

    3
  • صفحات: 

    238-242
تعامل: 
  • استنادات: 

    1
  • بازدید: 

    76
  • دانلود: 

    0
کلیدواژه: 
چکیده: 

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اطلاعات دوره: 
  • سال: 

    1400
  • دوره: 

    52
  • شماره: 

    2
  • صفحات: 

    51-66
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    177
  • دانلود: 

    24
چکیده: 

Water Water deficit especially after heading is one of THE MOST effective factors of wheat yield LOSS in Iran and across THE world and identifying THE physiological traits related to plant resilience is of great importance in screening for tolerant varieties. THE objective of this study was to evaluate THE variation in stem reserves accumulation capacity and its relationship with remobilization in some wheat cultivars. 22 wheat cultivars were cultivated in a split plot design with three replications, full irrigation and 40% of field capacity being main plots. THE amount of accumulation and remobilization was estimated by measuring internodes weight and stem soluble carbohydrates content (WSC). Significant genotypic variation among cultivars was observed under both normal and drought conditions. Maximum accumulation was found in lower internodes followed by peduncle and penultimate using dry weight measurement method. In WSC measurement method, however, maximum accumulation was observed in penultimate followed by lower internodes and peduncle. Cultivars ranking based on accumulation was also different in two methods. Drought stress caused decline in internodes weight, WSC and yield and remobilization efficiency. THE specific stem weight had THE highest correlation with remobilization. Significant correlation was found between grain yield and remobilization, specific stem weight and WSC.

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اطلاعات دوره: 
  • سال: 

    1403
  • دوره: 

    13
  • شماره: 

    25
  • صفحات: 

    145-156
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    18
  • دانلود: 

    0
چکیده: 

In this article, an attempt has been made to estimate THE amount of sound transmission LOSS in a flat oval channel by applying THE approach of statistical energy analysis. Correct estimation of sound transmission LOSS in an air conditioning channel is of great importance due to THE harmful effects of noise pollution in THE environment on human health. Simulation with THE statistical energy analysis method is a powerful approach to estimate sound and vibration in problems in which we deal with complex and multi-part systems; is considered. In this method, first, a system is divided into several subsystems, and THEn by writing a matrix equation that includes THE energy exchanges between subsystems and energy LOSS coefficients; It is investigated from THE perspective of vibration and sound estimation.On average, THE model presented in this research is able to estimate THE sound transmission LOSS in different dimensions of THE air conditioning channels according to THE experimental results in THE accuracy range of ± 2.5 dB. Considering that it seems that THE results obtained from modeling with this method are in good agreement with THE experimental data; THE results of this research can be used as an efficient approach to estimate noise in oval shaped channels stretched in different lengths.

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

Azadbakht Maryam | Jahanifar Mojtaba

اطلاعات دوره: 
  • سال: 

    1402
  • دوره: 

    11
  • شماره: 

    2
  • صفحات: 

    153-173
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    165
  • دانلود: 

    13
چکیده: 

ABSTRACT Right to THE city is one of THE MOST important citizenship rights that can be reduced for women under different circumstances. In this mixed research, with in-depth and semi-structured interviews, a conceptual model has been presented to explain THE causal, contextual and interventional conditions effectively reducing women's right to THE city. THEn, with THE structural equation modeling, THE causal conditions affecting THE right to THE city have been investigated. Family, ethnicity, and physical and mental conditions were THE MOST important background conditions that 32 women living in Ahvaz pointed to in order to influence THE right to THE city. Also, THE participants considered politics and government institutions, law, and spatial policies as THE MOST important intervention in THE women's right to THE city. City security, favorable actions with THE city space, space-positive gender performance, and social welfare were among THE MOST important causal conditions that THE participants mentioned in increasing women's right to THE city. Causal modeling showed that THE MOST influential reason for reducing women's right to THE city of Ahvaz is urban space security, followed by urban policies and designs. By multiplying THE causal path, it is 0.84, followed by urban planning and design with a coefficient of 0.79. Governmental and executive institutions should pay more attention to women's right to THE city through THE establishment of better laws, THE design of suitable spaces with individual differences, especially gender, and, of course, with an emphasis on women. THE creation of safer places in THE city for women while increasing THE livability of THE city for citizens improves women's rights in urban spaces Extended abstract Introduction THE right to THE city is a universal right consisting of several instances. Since THE right to THE city enables THE city inhabitants to access and enjoy THE urban life benefits freely, it is tantamount to THE right to freedom. THE right to THE city, THE right to freedom of building and rebuilding cities, is one of THE MOST valuable and, at THE same time, THE MOST neglected human rights. Among governments, NGOs (Non-Governmental Organizations) and political activists in all scales, THE right to THE city is often conceived in a legal meaning. In this sense, THE right to city includes a set of distinct rights to urban resources and services, shelter, public space, clean water, and education that must be available to all, regardless of social or economic status, THE bearers of such rights are urban dwellers and THEir guarantor is THE government. This legal conception of THE right to THE city emphasizes universal and individual rights in THE global liberal institutional order. THE ultimate normative purpose of a legal right to THE city is that THE government legally encodes and enforces THE set of rights constituting THE right to THE city. Justice and equality have been considered since long ago; however, injustice and discrimination are still visible in cities. Among all kinds of injustices and discrimination, gender equality has been a subject marginalized in all ages. In Iran, THE need for urban spaces for women in accordance with THE civil needs of citizens in daily life is felt. In Iran, factors such as various types of urban violence and insecurity, which generally make women victims, have reduced THE possibility and desire for THEir presence and participation in public. Because THE spatial, temporal, official and unofficial divisions in THE city have caused some spaces to remain far from THE reach of women. In this research, we intend to deal with THE MOST important factors that cause women not to enjoy one of THEir MOST essential human rights, which is THE right to THE city.   Methodology This research, which is practical in terms of purpose, has been done with a confirmatory mixed method; first, it tried to present THE MOST important contextual, interventional, and causal factors effective in reducing THE right to THE city of women in THE form of a conceptual model by THE approach of grounded THEory, and THEn confirming THE defined causal structure with THE help of structural equations modeling. THE population in this research is Iranian women who are exposed to gender injustice and do not have THE right to a desirable city. Research participants have a deep experience of undermining THEir right to THE city and are interested in sharing it and cooperating with THE researcher. Sampling was purposefully selected from women with THE least amount of THE right to THE city. THE qualitative sample of THE research was 32 people, and THE quantitative sample was 420 people. Due to THE mixed nature of THE research and THE use of THE data-driven THEory approach and, afterwards, structural equations to collect THE data, THE interview was used in THE qualitative phase and questionnaires in THE quantitative phase. THE interviews were done in-depth, face-to-face and semi-structured. THE open-ended interview questions were conducted in a calm environment without THE presence of a third person, and THE time of THE interviews varied according to THE conditions of THE interviewee. THE questionnaire used in THE research has ascertained an instrument that evaluates THE contextual and causal components and factors related to THE right to THE city in THE form of self-declaration items. THE data obtained from THE interview, after being implemented in THE form of text, were analyzed and classified with THE help of directed content analysis. In order to investigate THE causal structure of THE right to THE city, structural equation modeling would have been helpful. Analyzes were performed with THE help of LISREL 8.8. To estimate THE causal path coefficients, THE iterated maximum likelihood method was used and THE overall fit of THE causal structure model of women’s right to THE city was carried out by Chi-square statistic. And, of course, THE MOST important fit indexes of THE model, such as absolute fit indexes, incremental fit indexes and Parsimonious Normed Fit Indexes (PNFI).   Results and discussion Directed content analysis helped us to identify THE factors reducing THE right to THE city and its subclasses of Iranian women. Conditions affecting women's right to THE city are divided into underlying conditions, causal conditions, and intervening conditions. THE MOST critical underlying conditions were family, age, ethnicity, and physical and mental characteristics. At THE same time, environment security, urban actions, social welfare, and space gender functions constituted THE essential intervening conditions, and politics, governmental institutions, law, and city spatial policies included THE MOST important intervening conditions. Causal modeling also showed that THE factors influencing women's right to THE city are THE MOST influential to THE least influential in THE form of (1) security of THE city environment, (2) urban policy-making, (3) gender function of space, and (4) interaction with THE city. Security is one of THE MOST important and influential factors that can decrease or increase THE right to THE city for women.   Conclusion THE right to THE city, which is considered one of THE MOST fundamental rights of citizens, is trampled or reaches its lowest level due to underlying reasons such as THE gender of individuals or THEir families. In this case, women are more vulnerable than THE men. In such a way, causal conditions such as environmental security or urban actions and, of course, welfare have made this gender difference in THE use of city space deeper and more complicated. Meanwhile, THE role of governments and sovereignty in legislation and policies should not be neglected to reduce THE right to city for women. Our explicit suggestion is for governmental institutions and executive agencies to pay more attention to women’s right to THE city through THE establishment of better laws, THE design of more suitable spaces in THE city, THE design of urban spaces away from any gender discrimination only with THE view of equal access for all and THE creation of safer places for THE women living in Ahvaz.   Funding THEre is no funding support.   Authors’ Contribution All of THE authors approved THE content of THE manuscript and agreed on all aspects of THE work.   Conflict of Interest Authors declared no conflict of interest.   Acknowledgments We are grateful to all THE scientific.

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نویسندگان: 

Zamani Bahador | Asadpour Hajar

اطلاعات دوره: 
  • سال: 

    1402
  • دوره: 

    11
  • شماره: 

    2
  • صفحات: 

    75-97
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    184
  • دانلود: 

    30
چکیده: 

ABSTRACT With THE expansion of inefficient tissues, "Urban regeneration" has been objectified as a solution for developing cities in different physical, social and economic dimensions. Despite THE development of THE guidelines for urban regeneration projects, THEse projects in Iran still have challenges in THE stage of realization and implementation. This article aims to identify THE "challenges and causes of non-realization of urban regeneration projects in Iran" and analyse THE research conducted in this field with a qualitative approach. For this purpose, a meta-analysis of 23 articles in THE field of problems of urban regeneration projects in Iran was carried out. THE challenges raised in THE AtlasTI software were extracted with THE help of open and axial coding. In THE following, 100 codes were determined in THE form of 10 groups or general categories. In THE end, THE obstacles to THE realization of urban regeneration projects in Iran were given. According to THE obtained results, THE weak presence of non-governmental organizations, THE problems of preparing plans, institutional and management problems, and THE weakness of participation are THE four MOST important and frequent challenges in THE research related to THE realization of urban regeneration projects in Iran Extended Abstract Introduction THE trend of urban population growth and THE expansion of inefficient urban fabrics along with THE increasing immigrant population to THE cities makes THE planners think of filling THE existing urban fabrics with EXCESSIVE density and land use change, instead of THE city horizontal development with regard to THE urban sustainable development prism. Poor housing, low per capita services, lack of necessary infrastructure, low quality of life, economic stagnation and functional inefficiency, unorganized physical-spatial structure, high vulnerability to earthquakes, LOSS of social status, and various social problems exemplify THE typical challenges of such deteriorated areas. Deterioration of THE urban fabric has prompted THE emergence of various urban development policies among which regeneration as an overarching approach characterized by its economic, social, environmental, physical, ecological dimensions and components including quality of life, justice, revitalization and participation. This concept, as an urban development policy, has been defined and applied in THE vulnerable and deteriorated areas of cities in recent years. Started from physical redevelopment in THE Second World War and passing through policies concentrated on social and economic welfare, urban regeneration policies moved towards THE participation of local residents and THE creation of sustainable places in recent decades. However, taking into consideration THE manifestation challenges of urban development plans, in THE existing literature, urban regeneration challenges have been less comprehensively investigated. This paper aims to identify THE "challenges and causes of lack of urban regeneration plans manifestation in Iran" based on THE review and analysis of THE research conducted in this field with a qualitative approach in response to this question: "What are THE challenges and obstacles to THE manifestation of urban regeneration projects in Iran?”   Methodology This research aims to identify "challenges and obstacles to THE manifestation of urban regeneration projects in Iran" through a meta-analysis of THE research conducted in this field. Conducting a systematic search in Magiran, comprehensive humanities portal, and Google Scholar databases using THE Boolean logic search used THE keyword (challenges) AND key phrases (‘manifestation of plans’ AND ‘urban regeneration in Iran’) resulted in more than 70 Persian papers, 2 English papers, and 2 English THEses. THE reviewed studies included research and review papers, case study research, and THE special issue of urban regeneration policy of Haft Shahr Journal. THE geographical scope of THE investigated studies covers THE historical contexts of Iran, and metropolises such as Tehran, Tabriz, Shiraz, and Isfahan. Reviewing THE abstracts, 23 studies were selected among which THE research focusing on THE different types of regeneration, and evaluation of urban regeneration indicators were excluded from THE research process. To conduct meta-analysis after a comprehensive review of each study, open and focused coding of challenges was done through Atlas.ti software (version 8), and THE obstacles to THE manifestation of THE plans were extracted. Coding process continued until THE saturation was reached. Finally, THE 115 codes obtained was reduced to 100 through integrating similar codes. THEn, all THE codes were categorized into 10 categories, and a comprehensive model of "challenges of manifestation of urban regeneration projects in Iran" was presented.   Results and discussion Based on THE conducted review, THE recognized problems with emphasis on THE different aspects of urban regeneration projects are: 1) Weak presence of non-governmental organizations (18 codes); 2) Problems of preparing plans (17 codes); 3) Institutional and managerial problems (14 codes); 4) Weakness of participation (13 codes); 5) Duration and financial problems of urban regeneration plans (10 codes); 6) Problems of urban regeneration plans process (8 codes); 7) LOSS of identity of fabrics in THE preparation of THE plan (6 codes); 8) Lack of context-oriented approach (7 codes); 9) inefficient evaluation of plans (4 codes); 10) lack of social and specialized training for citizens and officials (3 codes). THE lack of endogenous THEory and insufficient knowledge of THE environment and residents obstacle THE manifestation of urban regeneration plans. Despite pretending THE use of non-governmental organizations, THE relevant law weaknesses, and THE lack of belief in THE effectiveness of it has led to disregard of THE participation of non-governmental organizations in practice in THE process of preparing and implementing development plans resulting in an inadequate context for manifestation of urban regeneration plans. In addition, THE government supervision on NGO’s in THE way of achieving independence has also caused limitations for THEir interplay. In terms of THE issues in THE preparation of plans, more emphasis on THE physical and economic dimensions and THE purely physical view, and THE lack of attention to THE social and cultural consequences, along with THE LOSS of THE community identity, are THE factors of THE failure of THE plans to achieve THE expected results. THE lack of coordination between programs and multiple decision-makers led to THE institutional confrontation instead of interaction. In this regard, THE necessity of an integrated and comprehensive approach to urban regeneration has been acknowledged in THE reviewed studies. NGO’s can play an effective role in communicating with citizens, educating citizens and informing THEm. It is also necessary to have THE participation of THE private sector and oTHEr organizations involved in THE field of urban development in addition to public participation in all steps of preparation, implementation and occupation of projects and development plans. In THE absence of a context-oriented approach in THE preparation and implementation of urban regeneration plans in Iran with blind imitation of western models and THE existence of limited urban infrastructure, following consequences are inevitable: uncertainty in terms of time, cost and site preparation before THE implementation of THE plan; lack of definition of urban regeneration plans in THE different scales, neighborhood, region and city; and THE uncertainty of THE relationship between THEse plans and oTHEr urban development plans. As such in THE current inadequate conditions driving THE process of preparing plans, THE possibility of implementing new policies and plans, is low and THE implemented plans like many oTHEr urban development plans in Iran, are inefficient in THE absence of THE post occupancy evaluation.   Conclusion Based on THE results, four priority challenges in THE manifestation of urban regeneration plans in Iran include; THE weak presence of non-governmental organizations, THE problems of preparing plans, institutional and managerial issues, and THE weakness of participation. "THE weak presence of non-governmental organizations" has been mentioned as THE first challenge in MOST reviewed studies (Ahmadifar et al., 2014). Regarding THE "participation of citizens" even though in THE set of laws and regulations of sustainable urban regeneration, promotion of citizenship culture, participation, and cooperation of local institutions are highlighted, THE residents are not welcomed in practice. On THE oTHEr hand, THE lack of people's participation in THE preparation and implementation of plans has made any urban regeneration actions fail or achieve to its partial goals. In this regard, THE results of THE previous comparative comparisons have shown that THE lack of laws and regulations supporting participation in various fields is of THE key factors (Nourian and Ariana, 2011, Shafie Dastjerdi and Sadeghi, 2016). THE problems of preparing plans, institutional and managerial issues, ranked as THE third and fourth issues in this study, have been emphasized in previous studies as well (Kalantari Khalil Abad et al., Pakro and Sattarzadeh, 2014, Izadi et al., 2019). THErefore, prioritizing THE challenges raised by experts and determining operational strategies to solve THEm are issues that can be addressed in future studies.   Keywords Urban regeneration plans, manifestation, meta-analysis   Funding THEre is no funding support.   Authors’ Contribution All of THE authors approved THE content of THE manuscript and agreed on all aspects of THE work.   Conflict of Interest Authors declared no conflict of interest.

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اطلاعات دوره: 
  • سال: 

    1401
  • دوره: 

    6
  • شماره: 

    1
  • صفحات: 

    73-80
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    206
  • دانلود: 

    63
چکیده: 

هدف: هدف تحقیق حاضر بررسی نقش «ترین» های ارزشی در سبک زندگی اسلامی از نگاه قرآن کریم می باشد. مواد و روش ها: در این پژوهش، با انتخاب آیات دربردارنده «ترین»ها، با روش توصیفی و تحلیلی به بررسی و تحلیل معانی و مفاهیم آیات مربوطه و تاثیر آن در سبک زندگی، با استفاده از تفاسیر و کتب مربوطه، پرداخته است. یافته ها: فضیلت کلام خدا بر سایر گفتارها بسان برتری پروردگار برسایر مخلوقاتش است. خداوند تمام کارهای خود را به بهترین وجه انجام داده است. «احسن کل شیء خلقه». حکم او بهترین حکم است و از ما خواسته است کارمان به نحو احسن باشد، چون عمر انسان محدود و دستورات کمال بخش بسیار است، قهرا باید انتخاب «بهترین» ها در کار باشد. نتیجه گیری: استفاده از «ترین»های مثبت قرآنی از جمله؛ عالم ترین، باتقواترین، راستگوترین و. . . همراه با مصادیق و ابعاد وآثار آنها در سبک زندگی و استحکام و دوام فرد و جامعه و ایجاد سلامت و امنیت اجتماعی نقش بسزایی دارد.

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اطلاعات دوره: 
  • سال: 

    1403
  • دوره: 

    13
  • شماره: 

    25
  • صفحات: 

    82-92
تعامل: 
  • استنادات: 

    0
  • بازدید: 

    14
  • دانلود: 

    0
چکیده: 

Air conditioning systems are used in industries and residential environments with THE aim of improving environmental conditions and creating a comfortable temperature for users. Considering THE production of sound and vibration in MOST of its components, THE lack of control of THE production sound level always exposes THE users to unwanted sound, which in addition to hearing complications, also causes fatigue and dissatisfaction with THE environmental conditions. . Compressors are one of THE MOST important sources of sound production in air conditioning systems, and screw compressors are one of THE MOST widely used in air conditioning industries. THErefore, THE compressor shell should be designed to minimize THE transmission of sound from inside to outside. Since THE maximum working temperature of compressors is up to 80 degrees Celsius, THErefore, in this research, an acoustic test was performed on a sample of a screw compressor shell in two modes of ambient temperature and maximum working temperature inside THE acoustic room, and THE effect of temperature increase on THE sound pressure level. transferred from THE shell to THE external environment is discussed. Finally, based on THE frequency analysis performed in two conditions of ambient temperature and maximum working temperature and comparing THE amount of sound transmitted to THE environment at different frequencies, practical solutions to reduce THE amount of transmitted sound pressure have been presented.

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

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