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( Rahim,Medhat H ),( Siddo Radcliffe A ) 한국수학교육학회 2012 수학교육연구 Vol.16 No.2
A group of twenty-nine high school student-teachers were given a set of mathematical propositions focusing on shape-to-shape transformations. Their task was to determine through hands-on manipulation and use of dynamic software that each shape be transformed into an area equivalent rectangular region. This paper reports on a classroom-based research.
Rahim Nikkhah,Ali Ebadi,Mohammad Reza Naghavi,Mauro Cresti,Monica Scali,Mehdi Hadadynejad 한국원예학회 2010 Horticulture, Environment, and Biotechnology Vol.51 No.1
The present study was designed to identify intra-varietal diversity via SSR markers within ‘Askari’ and ‘Keshmeshi’ (Vitis vinifera L.). These two semi-seedless grape cultivars are used as table grape and raisin. Some accessions of these cultivars are morphologically different. For instance, some accessions had big berries with big bunches and empty seeds, whereas others had small berries in small bunches with soft seed traces. In order to evaluate these differences at the genetic level, we selected 14 SSR loci to evaluate intra-cultivar diversity. In total, 42 accessions of ‘Askari’, 10 accessions of ‘Keshmeshi’ and one accession of Sultanina as a control were analysed, using a capillary electrophoresis fragment sizing system. Genetic analysis discriminated six accessions of ‘Askari’ (No. A3, A21, A31, A44, A46, and A114) which were different from other accessions. These accessions were also different in some morphological traits. Accessions no. A3 and no. A21 had soft seed traces with berries and bunches that were smaller than others. Other accessions had empty seeds. Accessions no. A44, A46 and A114 had big bunches, big berries and empty seeds. In accession no. A31 berry shape was approximately round vs. oval shape in other accessions. The remaining accessions (36 accessions) were identical in 14 SSR loci. In ‘Keshmeshi’ four different accessions (No. K6, K8, K15, and K27) were discriminated in genetic analysis. In accessions no. K6 and no. K8, the number of bunch and yield per vine was higher than other accessions. In accessions no. K15 and no. K27, berries and bunches were bigger than others and the number of seed traces were higher than other accessions. Other six accessions were identical in14 SSR loci. Cluster analysis of all three cultivars divided accessions to three groups (each cultivar in one group) at 0.67 similarity coefficient. Our study showed SSR markers can be useful for identifying of intra-cultivar diversity.
Rahim, Muhammad Kashif,Kim, Sung Eun,So, Hyeongryul,Kim, Hyung Jun,Cheon, Gi Jeong,Lee, Eun Seong,Kang, Keon Wook,Lee, Dong Soo 大韓核醫學會 2014 핵의학 분자영상 Vol.48 No.1
<P>Image quantification studies in positron emission tomography/computed tomography (PET/CT) are of immense importance in the diagnosis and follow-up of variety of cancers. In this review we have described the current image quantification methodologies employed in (18)F-fluorodeoxyglucose ((18)F-FDG) PET in major oncological conditions with particular emphasis on tumor heterogeneity studies. We have described various quantitative parameters being used in PET image analysis. The main contemporary methodology is to measure tumor metabolic activity; however, analysis of other image-related parameters is also increasing. Primarily, we have identified the existing role of tumor heterogeneity studies in major cancers using (18)F-FDG PET. We have also described some newer radiopharmaceuticals other than (18)F-FDG being studied/used in the management of these cancers. Tumor heterogeneity studies are being performed in almost all major oncological conditions using (18)F-FDG PET. The role of these studies is very promising in the management of these conditions.</P>
Rahim, Md. Arifur,Nam, Bora,San Choi, Won,Lee, Ha-Jin,Jeon, Il Cheol Royal Society of Chemistry 2011 Journal of materials chemistry Vol.21 No.32
<P>A facile approach to the development of multifunctional freestanding films consisting of polyelectrolytes (PEs) and polyelectrolyte complexes (<I>n</I>PECs) with highly embedded metal nanoparticles (NPs) was demonstrated. The composite films (<I>n</I>PEC/PE) containing NPs exhibited controllable properties that can be exploited by varying the type and content of NPs with high loading density. The approach described here enables the facile fabrication of conducting and transparent freestanding films with tunable optical/electrical properties, color, and large lateral dimensions with minimal effort in terms of the number of layers and ease of operation.</P> <P>Graphic Abstract</P><P>A facile approach to fabricate conducting and transparent freestanding composite films was demonstrated. Our approach enables facile fabrication of multifunctional freestanding films with tunable optical/electrical properties, color, and large lateral dimensions by minimal effort. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c1jm11818h'> </P>
Rahim Khan,Shah Nawaz Khan,Mushtaq Ahmad 대한전자공학회 2009 ITC-CSCC :International Technical Conference on Ci Vol.2009 No.7
In this paper, we propose a routing technique that takes into account the importance of a particular node for the overall network connectivity for routing. We show that some nodes are more important than others and need to be used sporadically for data forwarding. Avoiding the use of such important nodes results in prolonging network lifetime and maximizing the data transfer. Simulation results are shown to confirm the effectiveness of the proposed technique.
( Rahim Medhat H ),( Siddo Radcliffe A ) 한국수학교육학회 2011 수학교육 학술지 Vol.2011 No.2
A group of twenty-nine high school student-teachers were given a set of mathematical propositions focusing on shape-to-shape transformations. Their task was to determine through hands-on manipulation and use of dynamic software that each shape be transformed into an area equivalent rectangular region. This paper reports on a classroombased research..
Probabilistic-based damage identification based on error functions with an autofocusing feature
Rahim Gorgin,Yunlong Ma,Zhanjun Wu,Dongyue Gao,Yishou Wang 국제구조공학회 2015 Smart Structures and Systems, An International Jou Vol.15 No.4
This study presents probabilistic-based damage identification technique for highlightingdamage in metallic structures. This technique utilizes distributed piezoelectric transducers to generate andmonitor the ultrasonic Lamb wave with narrowband frequency. Diagnostic signals were used to define thescatter signals of different paths. The energy of scatter signals till different times were calculated by takingroot mean square of the scatter signals. For each pair of parallel paths an error function based on the energyof scatter signals is introduced. The resultant error function then is used to estimate the probability of thepresence of damage in the monitoring area. The presented method with an autofocusing feature is applied toaluminum plates for method verification. The results identified using both simulation and experimentalLamb wave signals at different central frequencies agreed well with the actual situations, demonstrating thepotential of the presented algorithm for identification of damage in metallic structures. An obvious merit ofthe presented technique is that in addition to damages located inside the region between transducers; thosewho are outside this region can also be monitored without any interpretation of signals. This noveltyqualifies this method for online structural health monitoring.
Layering the Internet-of-Things with Multicasting in Flow-Sensors for Internet-of-Services
Rahim Rahmani,Theo Kanter 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.12
Development of Internet-of-Services will be hampered by heterogeneous Internet-of-Things infrastructures, such as inconsistency in communicating with participating objects, connectivity between them, topology definition & data transfer, access via cloud computing for data storage etc. Our proposed solutions are applicable to a random topology scenario that allow establishing of multi-operational sensor networks out of single networks and/or single service networks with the participation of multiple networks; thus allowing virtual links to be created and resources to be shared. The designed layers are context-aware, application-oriented, and capable of representing physical objects to a management system, along with discovery of services. The reliability issue is addressed by deploying IETF supported IEEE 802.15.4 network model for low-rate wireless personal networks. Flow-sensor succeeded better results in comparison to the typical - sensor from reachability, throughput, energy consumption and diversity gain viewpoint and through allowing the multicast groups into maximum number, performances can be improved.