http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Ali, Syed Danial,Kim, Jongmin Pergamon Press 2017 Annals of nuclear energy Vol. No.
<P><B>Abstract</B></P> <P>In order to investigate the heating effects of High-Level radioactive Waste (HLW) on the intact rock, a Borehole Heater Test (BHT) has been conducted at KAERI Underground Research Tunnel (KURT). In this study, coupled thermo-mechanical (TM) processes carried out at KURT main experiment were simulated by a finite-element code, ABAQUS and its applicability to TM process is investigated. The model incorporates real test configurations by including all site-specific information of BHT. This study mainly describes and discusses the thermal and mechanical behavior from numerical analysis and compares them with experimental observations. A special focus has been on thermal stress analysis of selected stress-meters around the heater and on the factors that affect the thermo-mechanical behavior. The comparison of results shows good integrity with the thermal-mechanical phenomena of geological medium.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Study is based on the numerical simulation of the BHT held at KURT to investigate the TM behavior. </LI> <LI> Temperature evolution of numerical model shows good integrity with the insitu measurements. </LI> <LI> Thermal stress evolution of the model was in agreement with increasing temperature. </LI> <LI> The maximum stress recorded at RS2 at 2m distance, which was ∼4.7MPa. </LI> </UL> </P>
Estimation of Surgical Needle Insertion Force Using Kalman Filter
Syed Riaz un Nabi Jafri,Ali Jamshaid,Syed Minhaj un Nabi Jafri,Jamshed Iqbal 대한전기학회 2020 Journal of Electrical Engineering & Technology Vol.15 No.2
This paper presents a novel low-cost technique to measure the insertion force of a surgical needle on a testing surface to check needle strength. A combination of a load cell with a current sensor for a linear DC motor has been used to estimate the insertion force based on Kalman Filter (KF). The custom-designed and in-house fabricated system to estimate the insertion force comprises of the motor coupled with a vertically articulated arm. The needle to be tested is mounted at the end of the arm. Movement of the arm has been controlled electronically to produce the insertion force by the needle to a testing surface. The sensory measurement data generated during this process has been collected using Arduino based embedded electronic hardware. The KF based proposed strategy has been validated using the developed system by conducting various tests with diferent needles. Results in the form of penetration force and friction force have been experimentally observed and are then compared with standard force meters. Comparative analysis witnesses efciency of the proposed approach.
Ali Khan Khuwaja,Saleem Khawaja,Komal Motwani,Adeel Akbar Khoja,Iqbal Syed Azam,Zafar Fatmi,Badar Sabir Ali,Muhammad Masood Kadir 대한예방의학회 2011 예방의학회지 Vol.44 No.5
Objectives: The rising burden of preventable risk factors for non-communicable diseases (NCDs) among adolescents is a major public health challenge worldwide. We identified the preventable risk factors for NCDs in adolescents. Methods: In a school-based study, pre-tested structured questionnaires were completed by 414 adolescents (14 to 17years) at six schools in three cities in Pakistan. The chi-squared test and adjusted odds ratio (aOR) with 95% confidence interval (CI) were calculated in a multinomial logistic regression analysis. Results: Over 80% of the adolescents had unhealthy diets, and 54% were physically inactive. Most adolescents were exposed to passive smoking, and 14% were also current smokers. More than one-third of participants chewed betel nut,and one-quarter used oral tobacco. More girls were physically inactive (OR, 4.07; 95% CI, 2.69 to 6.17), whereas a greater proportion of boys were current smokers (OR, 2.17; 95% CI, 1.19 to 3.91), exposed to passive smoking (OR, 2.57;95% CI, 1.72 to 3.83), and using betel nut (OR, 2.03; 95% CI, 1.34 to 3.06). Only 3.1% of the participants were without any preventable lifestyle risk factor for NCDs, and over 80% had ≥2 factors. Co-existence of risk factors was independently associated with fathers being blue-collar workers (aOR, 3.57; 95% CI, 1.07 to 11.92) and parents not treating their child fairly (aOR, 5.05; 95% CI, 1.29 to 19.78). Conclusions: Most of the adolescents studied had preventable risk factors for NCDs. These results warrant comprehensive and integrated interventions to prevent lifestyle risk factors, and parents are front-line stakeholders.
Rare finding of Eustachian tube calcifications with cone-beam computed tomography
Syed, Ali Z.,Hawkins, Anna,Alluri, Leela Subashini,Jadallah, Buthainah,Shahid, Kiran,Landers, Michael,Assaf, Hussein M. Korean Academy of Oral and Maxillofacial Radiology 2017 Imaging Science in Dentistry Vol.47 No.4
Soft tissue calcification is a pathological condition in which calcium and phosphate salts are deposited in the soft tissue organic matrix. This study presents an unusual calcification noted in the cartilaginous portion of the Eustachian tube. A 67-year-old woman presented for dental treatment, specifically for implant placement, and cone-beam computed tomography (CBCT) was performed. The CBCT scan was reviewed by a board-certified oral and maxillofacial radiologist and revealed incidental findings of 2 distinct calcifications in the cartilaginous portion of the Eustachian tube. To the authors' knowledge, no previous study has reported the diagnosis of Eustachian tube calcification using CBCT. This report describes an uncommon variant of Eustachian tube calcification, which has a significant didactic value because such cases are seldom illustrated either in textbooks or in the literature. This case once again underscores the importance of having CBCT scans evaluated by a board-certified oral and maxillofacial radiologist.
Rare finding of Eustachian tube calcifications with cone-beam computed tomography
Ali Z. Syed,Anna Hawkins,Leela Subashini Alluri,Buthainah Jadallah,Kiran Shahid,Michael Landers,Hussein M. Assaf 대한영상치의학회 2017 Imaging Science in Dentistry Vol.47 No.4
Soft tissue calcification is a pathological condition in which calcium and phosphate salts are deposited in the soft tissue organic matrix. This study presents an unusual calcification noted in the cartilaginous portion of the Eustachian tube. A 67-year-old woman presented for dental treatment, specifically for implant placement, and conebeam computed tomography (CBCT) was performed. The CBCT scan was reviewed by a board-certified oral and maxillofacial radiologist and revealed incidental findings of 2 distinct calcifications in the cartilaginous portion of the Eustachian tube. To the authors’ knowledge, no previous study has reported the diagnosis of Eustachian tube calcification using CBCT. This report describes an uncommon variant of Eustachian tube calcification, which has a significant didactic value because such cases are seldom illustrated either in textbooks or in the literature. This case once again underscores the importance of having CBCT scans evaluated by a board-certified oral and maxillofacial radiologist.
Syed Ahmad Ali,Umair Ali 대한공간정보학회 2017 Spatial Information Research Vol.25 No.6
Kashmir basin situated in tectonically active area NW Himalaya is surrounded by a number of seismogenic faults. In the present study, the structures are identified using the edge enhancement filters, false colour composite and DEM derived products like shaded relief, aspect, slope, drainage network, and 3D profiling. Linear structural feature map was analysed using density, orientation, length, and subsequently correlated with geological map. The area shows highest density in NW–SE, E–W and N–S orientation, with predominance of first direction structures with trend resemblance to tectonic structures present in and around. The western flank shows high density of tectonic lineaments, the Gulmarg and Tosamaidan lineament are supported by geomorphic evidences and shows linear trend with the tectonic structures including Balapur fault (out-of-sequence fault) mapped in Pleistocene deposits and earthquake epicentres present in and around the area. These results correspond to the overall NW–SE direction of the structures resulting from the NE– SW compressional effect of the regional tectonic structures. The approach applied for extraction of structural features of tectonic origin will prove to be very crucial for further investigation in future for fault delineation, seismic and landslide hazard assessment, and mitigation measures in the region.
( Syed Mubarak Ali ),( Imran Ghani ),( Muhammad Shafie Abd Latiff ) 한국인터넷정보학회 2015 KSII Transactions on Internet and Information Syst Vol.9 No.1
In this modern era of technology and information, e-learning approach has become an integral part of teaching and learning using modern technologies. There are different variations or classification of e-learning approaches. One of notable approaches is Personal Learning Environment (PLE). In a PLE system, the contents are presented to the user in a personalized manner (according to the user`s needs and wants). The problem arises when a new user enters the system, and due to the lack of information about the new user`s needs and wants, the system fails to recommend him/her the personalized e-learning contents accurately. This phenomenon is known as cold-start problem. In order to address this issue, existing researches propose different approaches for recommendation such as preference profile, user ratings and tagging recommendations. In this research paper, the implementation of a novel interaction-based approach is presented. The interaction-based approach improves the recommendation accuracy for the new-user cold-start problem by integrating preferences profile and tagging recommendation and utilizing the interaction among users and system. This research work takes leverage of the interaction of a new user with the PLE system and generates recommendation for the new user, both implicitly and explicitly, thus solving new-user cold-start problem. The result shows the improvement of 31.57% in Precision, 18.29% in Recall and 8.8% in F1-measure.