Investigation Challenges And Guidelines Development Rural Tourism (Case Study:

Sayyed khalil Sayyed Ali pour 세계문화관광학회 2010 Conference Proceedings Vol.11 No.0

As one of the economic success factors in any country, tourism is an important income source for many countries. rural Residential areas, specially in developing countries where a number of people live face such hardships as immigration to cities, low employment, low agricultural productivity level, land or absence of infrastructures for entertainment and services. A great number of rural residential areas in Semnan Province have many tourist attraction potentials for their geographical advantages of landscapes, ancient buildings, climates variety, and traditions. Being an undeniable economic and social fact, it can satisfy the need for relaxation, getting acquainted with cultures, and enjoying natural beauties specially in the intact rural places. Semnan Province has a diversity of rural residential areas and tourist attraction sites, and the most attractive sites which enjoy a higher potential for tourism enter this study. Here we have conducted field and library research using two types of questionnaires distributed to rural residents and organizations responsible for tourism. The data was analyzed through the statistical software of SPSS.

Research Paper : Influence of corn density and planting pattern on the growth of common Lambsquarters (Chenopodium album L.)

( Sayyed F. Saberali ),( Mohammand A. Baghestani ),( Eskandar Zand ) 한국잡초학회 2008 Weed Biology and Management Vol.8 No.1

Incorporation of Hydroxyapatite/Doxorubicin into the Chitosan/Polyvinyl Alcohol/Polyurethane Nanofibers for Controlled Release of Doxurubicin and Its Anticancer Property

Sayyed Sadroddin Qavamnia,Leila Roshanfekr Rad,Mohammad Irani 한국섬유공학회 2020 Fibers and polymers Vol.21 No.8

In the present study, the doxorubicin-hydroxyapatite (DOX-HAp) has been loaded into the chitosan/PVA/PUsingle layer and core-shell nanofibers. The potential of synthesized nanofibers was evaluated for controlled release of DOXand bone cancer treatment in vitro. The synthesized DOX-HAp nanohybrid was characterized using XRD, SEM, and UV-Visanalysis. The morphology of synthesized nanofibers was examined by SEM and TEM analysis. For single layer nanofibers,some DOX-HAp nanohybrids were observed on the nanofibers surface. The fiber diameter was increased by increasing shellflow rate and no DOX-HAp nanohybrids were detected on the core-shell fibers surface. The DOX encapsulation efficiency ofsingle layer and core-shell layer fibers was higher than 90 %. The initial burst release from single layer fiber at initial hoursand the continuous release of DOX was observed from single layer nanofibers during 7 and 10 days under acidic andphysiological pH. The sustained release of DOX was obtained within 10 and 14 days, 15 and 18 days, 21 and 25 days fromcore-shell fibers with flow rates of 0.3, 0.5 and 0.8 ml/h under acidic and physiological pH. The non-Fickian diffusion andFickian diffusion were achieved from single layer and core-shell nanofibers. The cell attachment and cell death resultsindicated the high potential of DOX loaded-core-shell fibers for bone cancer treatment.

A Novel Risk Evaluation Procedure Using a Kriging-Based Surrogate Modeling for Offshore Structures

Sayyed Mohsen Vazirizade,Achintya Haldar 대한토목학회 2021 KSCE JOURNAL OF CIVIL ENGINEERING Vol.25 No.7

An innovative reliability estimation procedure for Jacket-type offshore platforms is proposed. The information on risk is extracted using multiple deterministic analyses using advanced mathematical theories resulting in compounding beneficial effects. The platforms are modeled by finite elements. Nonlinearity and major sources of uncertainty are incorporated. The wave loading model is realistically developed to satisfy the underlying physics. It is applied in three-dimension in time domain incorporating the uncertainties in the parameters. Implicit performance functions are expressed explicitly using several advanced factorial schemes and significantly improved response surface method. The efficiency and accuracy of the method are improved using a comprehensively improved Kriging-based surrogate modeling technique. The risk is evaluated for the serviceability and strength limit state functions for a jacket-type offshore platform using about two hundred nonlinear finite element analyses. The procedure was verified using simulation techniques. The concept can be considered an alternative to the conventional random vibration techniques and the standard Monte Carlo simulation procedure.

In situ PKA activity assay by selective detection of its catalytic subunit using antibody arrays

Sayyed, D. R.,Jung, S. H.,Kim, M. S.,Han, E. T.,Park, W. S.,Hong, S. H.,Kim, Y. M.,Ha, K. S. Springer Science + Business Media 2017 BioChip Journal Vol.11 No.1

MTB-DR-RIF 9G membrane: a platform for multiplex SNP detection of multidrug-resistant TB.

Sayyed, Danishmalik Rafiq,Nimse, Satish Balasaheb,Song, Keum-Soo,Sung, Nackmoon,Kim, Taisun Springer-Verlag 2015 Analytical and Bioanalytical Chemistry Vol.407 No.19

<P>The MTB-DR-RIF 9G membrane can detect by detecting multiple mutations in multiple codons. The MTB-DR-RIF 9G membrane possesses clinical applicability in point-of-care settings for the following reasons: (i) 100% similar results with that of the sequencing analysis for clinical samples, (ii) discrimination of the multiple mutations in multiple codons, (iii) a specific/non-specific hybridization ratio higher than 350:1, and (iv) the sensitivity was found to be 1-10 copies/test for detection and discrimination of the wild and mutant TB strains. Graphical abstract Schematic illustration of the effect of controller DNA on the hybridization of the immobilized probes (corresponding to the wild TB strain) with the PCR product of (a) wild TB strain and (b) mutant TB strain.</P>

Economic Impact Evaluation of Tourism Development in Accordance With Sustainable Development, the Case

Sayyed Ali Badri,Mehdi Ramezanzadeh lasboyee 세계문화관광학회 2008 Conference Proceedings Vol.9 No.0

The identification and planning of tourism's actual and perceived economic impacts in rural areas as destination community in accordance with the sustainable tourism principles, has recently received significant attention. Thus, this study compares and analyzes the economic aspects of rural areas in accordance with the sustainable tourism principles before and after tourism development. The case study has been carried out on the rural areas of Dohezar district, Tonekabon Township, Iran. This area has eleven rural settlements and 216 households. Possessing beautiful natural landscapes, this area has been appealing to domestic tourists. The type of tourism in this area is nature-based tourism, reflected in the form of second homes. The methodology used in this study is descriptive-analytic, in which statistical test such as non-parametrical tests such as Wilcockson has been implemented with regard to the data type and the comparison before and after. The findings of this study indicate that the economic indicators of the villages under study have shown significant difference before and after the tourism development in accordance with the principles of sustainability and sustainable tourism; so much so that following the tourism development, positive economic impacts in these rural areas like the growth of employment in relation to the tourism sector and an increase of income as a result of tourism development were observed. But, in view of the fact that tourism development has occurred in the form of mass tourism, spontaneously and without any premeditated planning, it has brought about negative economic impacts such as increase in the price of goods and services, Economic seasonality, and excessive reliance of the rural areas upon the tourism sector, and unequal income distribution have been; something in conflict with the principles of sustainability and those of sustainable tourism.

Numerical and experimental research on actuator forces in toggled active vibration control system (Part II: Experimental)

Sayyed Farhad Mirfakhraei,Hamid Reza Ahmadi,Ricky Chan 국제구조공학회 2021 Smart Structures and Systems, An International Jou Vol.28 No.5

In this research, new toggled actuator forces were proposed. For this purpose, numerical and experimental investigation of the installation of the actuator in a toggle configuration for the decreasing of active control forces in engineering structures has been carried out. In the first part, numerical studies were investigated. In addition to numerical research on the effects of the toggle configuration on actuator forces, an experimental investigation has been carried out by building a table model of the mentioned system. The algorithm of the system is LQR, and ATmega328 has been used as a control platform. Comparing results through the experimental and numerical processes express high matching that relies on mitigating control forces in the toggled active model. Based on the results, a significant reduction in actuator forces through using the proposed toggle configuration.

Hybrid of the fuzzy logic controller with the harmony search algorithm to PWR in-core fuel management optimization

Mahmoudi, Sayyed Mostafa,Rad, Milad Mansouri,Ochbelagh, Dariush Rezaei Korean Nuclear Society 2021 Nuclear Engineering and Technology Vol.53 No.11

One of the important parts of the in-core fuel management is loading pattern optimization (LPO). The loading pattern optimization as a reasonable design of the in-core fuel management can improve both economic and safe aspects of the nuclear reactor. This work proposes the hybrid of fuzzy logic controller with harmony search algorithm (HS) for loading pattern optimization in a pressurized water reactor. The music improvisation process to find a pleasing harmony is inspiring the harmony search algorithm. In this work, the adjustment of the harmony search algorithm parameters such as the bandwidth and the pitch adjustment rate are increasing performance of the proposed algorithm which is done through a fuzzy logic controller. Hence, membership functions and fuzzy rules are designed to improve the performance of the HS algorithm and achieve optimal results. The objective of the method is finding an optimum core arrangement according to safety and economic aspects such as reduction of power peaking factor (PPF) and increase of effective multiplication factor (Keff). The proposed approach effectiveness has been tried in two cases, Michalewicz's bivariate function problem and NEACRP LWR core. The results show that by using fuzzy harmony search algorithm the value of the fitness function is improved by 15.35%. Finally, with regard to the new solutions proposed in this research it could be used as a trustworthy method for other optimization issues of engineering field.

Experimental Investigation of Noise and Vibration in a Multi-three Phase Unit Interior Permanent Magnet Synchronous Machine with Open-circuit Fault conditions

Shah Sayyed Haleem,Wang Xiaoyuan,Abubakar Usman,Gao Peng 대한전기학회 2022 Journal of Electrical Engineering & Technology Vol.17 No.5

Permanent magnet synchronous machines, especially interior permanent magnet (IPM) synchronous machines, are being used widely nowadays in a variety of applications. The (IPM) synchronous machine vibration and noise remain one of the critical factors to consider when some new design prototype of the machine is taken into consideration. In this paper, an effi cient modular type fractional slot concentrated winding (FSCW) interior type permanent magnet synchronous motor (IPMSM) is designed, taking into account the capability of fault tolerance and open circuit fault conditions. The radial force and the associated vibration phenomenon are fi rst investigated for the modular type (IPMSM) under normal operating conditions and then under symmetrical and asymmetrical three-phase units open circuit fault conditions. Two-dimensional (2-D) Fourier Transform has been used to investigate the relationship between the faulty operating conditions and the associated induced harmonics in the radial force density of the machine. Then, a detailed harmonic structural analysis, along with a three-dimensional (3-D) transient structural analysis, is performed on the stator of the proposed machine to investigate and verify the normal healthy design approach and the machine fault operating cases under post-fault conditions. Lastly, the vibration and noise characteristics of the prototype machine under the symmetrical and asymmetrical three-phase units’ faulty conditions are thoroughly investigated for comparison purposes over a wide operating speed range. The fi ndings from this comparative analysis are validated through experiments, which confi rm the validation of the proposed design. Moreover, the associated considerations can be used by machine designers to lower the vibration and noise level in fault-tolerant modular design machines.