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The Impact of Supply Chain Management on Organizational Performance and Customer Satisfaction
Hamid Babaei Meybodi,Seyed Hamid Emadi,Tina Roostapisheh,Haniyeh Ghiyasvand Mohammadkha 대한산업공학회 2018 Industrial Engineeering & Management Systems Vol.17 No.3
The present study has been conducted with the purpose of investigating the impact of supply chain management (SCM) on organizational performance and customer satisfaction in two factories in Shiraz Industrial Estate. Therefore, according to the research subject, the variables of supply chain management, organizational performance and also customer satisfaction have been defined. In terms of objective, this is an applied study and in terms of nature and method, this is a descriptive-correlational study. The statistical population consists of 100 people and the sample consists of 80 people. The reliability and validity of research have firstly been examined and then the results were analyzed using SPSS and LISREL. The obtained results indicate the impact of supply chain management on organizational performance and customer satisfaction.
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Hamid Khademhosseini Beheshti,Hamid Lankarani 대한기계학회 2010 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.24 No.5
This paper obtains a Mathematical Dynamic Model (MADYMO) for occupant lumbar load evaluation under CFR Part 23 and 25 at extreme ranges of temperature. The validation of results is performed by full scale sled test results. Aircraft industries are using viscoelastic polyurethane foams as seat cushion. Visco-elastic foams bring not only more comfort to the passengers in long term sitting but it also maintains more safety during unpredicted crashes and hard landings. Aircraft seat cushions are exposed to varying temperature ranges during their life time. This fact has motivated aircraft industries to evaluate the seat cushion dynamic behavior at extreme ranges of temperatures in addition to what is mentioned in Federal Aviation Administration (FAA) Regulations at room temperature. This research provides a methodology based on simulation and modeling to eliminate, or at least, minimize the number of full scale dynamic sled tests defined by regulations for aircraft seats at extreme ranges of temperature.
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Hamid Aboutaleb Kadkhodaeian,Taki Tiraihi,Hamid Ahmadieh,Hossein Ziaei,Narsis Daftarian,Taher Taheri 한국조직공학과 재생의학회 2019 조직공학과 재생의학 Vol.16 No.3
BACKGROUND: Retinal degeneration causes blindness, and cell replacement is a potential therapy. The purpose of this study is to formation of pigmented neurospheres in a simple medium, low-cost, high-performance manner over a short period of time while expressing markers of RPE cells and the activation of specific genes of the pigment cells. Also, these neurospheres have the ability to produce a monolayer of retinal pigment epithelium-like cells (RPELC) with the ability of photoreceptor outer segment phagocytosis. METHODS: BMSC were isolated from pigmented hooded male rats and were immunoreactive to BMSC markers, then converted into neurospheres, differentiated into pigmented spheres (PS), and characterized using Retinal pigment epithelium-specific 65 kDa protein (RPE65), Retinaldehyde-binding protein 1 (CRALBP) and orthodenticle homeobox 2 (OTX2) markers by immunocytochemistry, RT-PCR and RT-qPCR. The PS were harvested into RPELC. The functionality of RPELC was evaluated by phagocytosis of fluorescein-labeled photoreceptor outer segment. RESULTS: The BMSC immunophenotype was confirmed by immunostained for fibronectin, CD90, CD166 and CD44. These cells differentiated into osteogenic and lipogenic cells. The generated neurospheres were immunoreactive to nestin and stemness genes. The PS after 7–14 days were positive for RPE65 (92.76–100%), CRALBP (95.21–100%) and OTX2 (94.88–100%), and after 30 days RT-PCR, qPCR revealed increasing in gene expression. The PS formed a single layer of RPELC after cultivation and phagocyte photoreceptor outer segments. CONCLUSION: Bone marrow stromal stem cells can differentiate into functional retinal pigmented epithelium cells in a simple, low-cost, high-performancemanner over a short period of time. These cells due to expressing theRPELCgenes andmarkers can be used in cell replacement therapy for degenerative diseases including age-relatedmacular degeneration as well as retinitis pigmentosa.
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RNAi and miRNA in Viral Infections and Cancers
Mollaie, Hamid Reza,Monavari, Seyed Hamid Reza,Arabzadeh, Seyed Ali Mohammad,Shamsi-Shahrabadi, Mahmoud,Fazlalipour, Mehdi,Afshar, Reza Malekpour Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.12
Since the first report of RNA interference (RNAi) less than a decade ago, this type of molecular intervention has been introduced to repress gene expression in vitro and also for in vivo studies in mammals. Understanding the mechanisms of action of synthetic small interfering RNAs (siRNAs) underlies use as therapeutic agents in the areas of cancer and viral infection. Recent studies have also promoted different theories about cell-specific targeting of siRNAs. Design and delivery strategies for successful treatment of human diseases are becomingmore established and relationships between miRNA and RNAi pathways have been revealed as virus-host cell interactions. Although both are well conserved in plants, invertebrates and mammals, there is also variabilityand a more complete understanding of differences will be needed for optimal application. RNA interference (RNAi) is rapid, cheap and selective in complex biological systems and has created new insight sin fields of cancer research, genetic disorders, virology and drug design. Our knowledge about the role of miRNAs and siRNAs pathways in virus-host cell interactions in virus infected cells is incomplete. There are different viral diseases but few antiviral drugs are available. For example, acyclovir for herpes viruses, alpha-interferon for hepatitis C and B viruses and anti-retroviral for HIV are accessible. Also cancer is obviously an important target for siRNA-based therapies, but the main problem in cancer therapy is targeting metastatic cells which spread from the original tumor. There are also other possible reservations and problems that might delay or even hinder siRNA-based therapies for the treatment of certain conditions; however, this remains the most promising approach for a wide range of diseases. Clearly, more studies must be done to allow efficient delivery and better understanding of unwanted side effects of siRNA-based therapies. In this review miRNA and RNAi biology, experimental design, anti-viral and anti-cancer effects are discussed.
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Hamid Reza Shairi 고려대학교 응용문화연구소 2018 에피스테메 Vol.0 No.20
From linguistic point of view, discourse is an individual action which is the product of language use. Such an action that ties outward and lived experiences of enunciator with inward quest of language into discourse is our main focus of attention alongside other related issues which this study tries to investigate thoroughly. Among diverse functions of discourse three characteristics entitled resistive, insisting and appeasing are those properties that are the foundations of many discourses. Discursive resistance negates an assertive and stabilized status with creation of different and novel situation. The most important issue of assertive status negation of a discourse is to open the way to a new perspective which represents the trajectory of discursive and can prepare the situations of development and transcendence. Resistance and insistence redefine discursive power. Accordingly, power can change the situation of assertive status with quantitative extension of its presence. Now, it should investigate how and based on which functions the discourse will encounter dynamic process of appeasement and changes assertive and stabilized circumstances? The main objective of this study is to analyze three dimensional feature of discourse which are resistive, insisting and appeasing attributes in the framework of semiotics.
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Hamid, Shanawar,Kumar, Macharla Arun,Han, Jong-In,Kim, Hyungjun,Lee, Woojin unknown 2017 Green Chemistry Vol. No.
<P>Nitrate contamination of surface and groundwater is one of the most serious environmental issues due to its adverse effects on human health and the ecosystem. In this study, novel bimetallic catalysts supported by nanocrystalline beta zeolite (NBeta) were firstly developed for the complete and selective reduction of nitrate to environment-friendly nitrogen. The synthesis of a NBeta support and bimetallic catalysts was confirmed by X-ray diffraction and Fourier transformation infra-red spectroscopy. The morphology of the NBeta support and metal dispersion was confirmed by transmission electron microscopy and scanning electron microscopy with energy dispersive X-ray, which revealed that newly synthesized NBeta consisted of individually separated cubical shaped crystals and that the metals were well dispersed in uniform and closely packed ensembles. The nitrate reduction mechanism on NBeta-supported bimetallic catalysts was also identified by inductively coupled plasma mass spectroscopy, X-ray photoelectron spectroscopy, temperature-programmed reduction, and H-2 pulse chemisorption. All catalysts successfully achieved 100% NO3- and NO2- removal. Sn-Pd-NBeta showed the highest reduction kinetics (k = 19.09 x 10(-2) min(-1)) followed by In-Pd-NBeta (k = 2.89 x 10(-2) min(-1)) and Cu-Pd-NBeta (k = 2.31 x 10(-2) min(-1)). However, N-2 selectivity was in the order of Cu-Pd-NBeta (92.68%) > In-Pd-NBeta (82.93%) > Sn-Pd-NBeta (80.80%). Characterization of the catalysts revealed that the highest N2 selectivity of Cu-Pd-NBeta was due to the suppression of a deep hydrogenation capacity of Pd by Cu. The NBeta-supported Cu-Pd, In-Pd, and Sn-Pd catalysts also showed a complete NO3- reduction with consistent N-2 selectivity in successive and regenerated cycles. The results suggest an eco-friendly catalytic system which can be applied to the optimal ex situ remediation of water and wastewater contaminated with nitrate.</P>
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Cultural Semiotics Analysis of Carpet and Furniture in Iranian Lifestyle
Hamid Reza Shairi,Maryam Ahmadi 고려대학교 응용문화연구소 2020 에피스테메 Vol.0 No.23
The present study seeks to analyze cultural semiotics of carpet and furniture place, as significant objects rooted in Iranian culture for centuries, and in the process of paradigmatic and syntagmatic, they examine the functional, anthropological, semantic and value differences in Iranian cultural discourse. Thus, the main question is “what has been the influence of carpet and furniture as the main household objects in Iranian lifestyles during the contemporary era, and what elements and concepts of our identity and culture have transformed in this interaction?”. According to the findings of this research, it can be argued that carpet, together with many of its meanings in the contemporary era, has lost its central position, become smaller and found an auxiliary function alongside other furniture. Its practical value has diminished, and sometimes has an amusing aspect, while the furniture has enjoyed many signs meanings and has not only changed Iran's lifestyle in the contemporary era, but it also caused a greater distinction and formality of communications. It also acts as a sign of power and distinctive relations. As a result, it is understood how the objects are measured and valued based on social class and tastes in the contemporary lifestyle.
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