http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
오늘 본 자료
( Nouman Memon ),( Faizan Iqbal ),( Syed Shahid Noor ),( Kazim Rahim Najjad ),( Muhammad Farhan Sozera ),( Arsalan Abro ),( Noman Khan ) 대한슬관절학회 2021 대한슬관절학회지 Vol.33 No.-
Background: Information regarding the use of hinged implants in non-oncological conditions is limited in our region due to a lack of adequate data collection and follow-up. The purpose of this study is to evaluate mid-term results and risk factors affecting the survivorship of third-generation rotating hinge knee (RHK) patients in nononcological conditions. Methods: We retrospectively reviewed 41 single, third-generation, rotating hinge prostheses in three complex primary knee procedures and 38 revision knee surgeries in between 2007 to 2014. Implant survival was assessed using the Kaplan-Meier method. Factors influencing implant survival were identified using the log-rank test. During the study period, clinical results along with complications were assessed. Clinical outcomes were assessed by using the Knee Society Score (KSS). Results: RHK arthroplasty was used in 41 patients. Out of 41 patients, a RHK was used in three patients with a complex primary deformed knee whereas in 38 patients, a RHK was used in revision arthroplasty surgery. The cumulative implant survival rate with re-revision due to any cause was found to be 87.8% (95% CI 69.2-90.1) at 5-7 years. Prosthetic joint infection, peri-prosthetic fracture and extensor mechanism complications were the commonest mode of failure. The P value was found to be significant when comparing KSS pre-operatively and post-operatively. Conclusion: The cumulative implant survival rate was found to be 87.8%. Prosthetic joint infection was the commonest mode of failure in patients who underwent third-generation RHK surgery for variable indications. Being a patient with a high Charlson comorbidity index is the main risk factor associated with failure of the rotating hinge implant.
Muhammad Nouman Tahir,Amir Hameed,Imran Amin,Shahid Mansoor 한국식물병리학회 2017 Plant Pathology Journal Vol.33 No.5
Spinach is a vegetable crop which is widely grown over a large area especially in Punjab province of Pakistan. Leaf curling and enations on spinach plant collected shown to be associated with the begomovirus Pedilanthus leaf curl virus (PeLCV) and Shahdadpur strain of Cotton leaf curl Multan betasatellite (CLCuMBSha). Defective molecules of half and quarter size derived from monopartite begomoviruses are usually generated by the deletion of virion-sense sequences. Characterization of defective molecules of PeLCV from spinach revealed that the molecules of half the size are derived from the deletion of complementary-sense genes while quarter size molecule appears to have evolved by further deletion. This is the first report of the begomovirusbetasatellite complex on spinach and unusual defective molecules derived from deletion of complementarysense genes in Pakistan.
Probabilistic Analysis of Drought Propagation Over The Han River Basin Under Climate Change
Muhammad Nouman Sattar,김지은,이주헌,김태웅 대한토목학회 2019 대한토목학회논문집 Vol.39 No.1
The knowledge about drought propagation is very important in accurate estimation of hydrological drought characteristics and efficientdevelopment of early warning system. This study investigated a probabilistic relationship of drought propagation based on Bayesiannetwork model for historic period and for future projection under climate change scenario RCP 8.5 over the Han River basin. The results revealed that the propagation rate and lag time have increasing and decreasing trends from the historic period of 1967-2013 to the future periods of 2014-2053 and 2054-2100 under climate change, respectively. The probabilistic results of Bayesian model revealed that the probability of occurrence of lag time varied spatially and decreased when the intensity of meteorological drought changed from moderate to severe and extreme condition during 1967-2013. The values of probability increased in the first future period of 2014-2053 in several sub-basins and slight decreased in the second period of 2054-2100. The proposed probabilistic results will be useful for the decision makers to develop related policies with an appropriate insight toward the future drought status.
Tahir, Muhammad Nouman,Hameed, Amir,Amin, Imran,Mansoor, Shahid The Korean Society of Plant Pathology 2017 Plant Pathology Journal Vol.33 No.5
Spinach is a vegetable crop which is widely grown over a large area especially in Punjab province of Pakistan. Leaf curling and enations on spinach plant collected shown to be associated with the begomovirus Pedilanthus leaf curl virus (PeLCV) and Shahdadpur strain of Cotton leaf curl Multan betasatellite ($CLCuMB^{Sha}$). Defective molecules of half and quarter size derived from monopartite begomoviruses are usually generated by the deletion of virion-sense sequences. Characterization of defective molecules of PeLCV from spinach revealed that the molecules of half the size are derived from the deletion of complementary-sense genes while quarter size molecule appears to have evolved by further deletion. This is the first report of the begomovirus-betasatellite complex on spinach and unusual defective molecules derived from deletion of complementary-sense genes in Pakistan.
Experimental and Numerical Investigation of Stress Concentration at Rib-to-Crossbeam Joint
Heng Fang,Nouman Iqbal,Gilles Van Staen,Hans De Backer 한국강구조학회 2021 International Journal of Steel Structures Vol.21 No.1
In orthotropic steel decks (OSDs), the rib-to-crossbeam joint is the most vulnerable detail that has not been drawn enough attention. The failure mode of cracks initiate from the lower weld end on rib wall is governing its fatigue performance. However, relevant detail categories are still missing in prevailing codes. This paper mainly focuses on the stress concentrations at the rib-to-crossbeam joint induced by rib distortions. A series of static load tests were fi rst performed on a full-scale OSD specimen with diff erent weld length between the ribs and the crossbeam. Then, corresponding numerical simulations were fi nished. Several possibilities that may cause the diff erences between the measurements and the calculations are investigated. At last, fatigue assessments based on infl uence lines of structural hot spot stress (SHSS) are completed. Research results reveal that the measurement results of reference points for SHSS method would be very sensitive to the exact location of strain gauges. Due to the manual welding, the deviation of strain gauge positions induced by the irregular weld shape is thought to be the main reason that causes the diff erences between measurements and calculations. Raising the location of cope hole terminations would decrease distortional stresses. However, the infl uence of this parameter on fatigue lives is rather small. The fatigue lives of points along the lower weld toe are very close. Hence, the point at the middle plane of crossbeam could be used as the reference point for fatigue assessments. Meanwhile, the center between ribs could be used as the reference transverse load position for fatigue assessments of this joint.
ESBL: An Energy-Efficient Scheme by Balancing Load in Group Based WSNs
( Amjad Mehmood ),( M. Nouman ),( Muhammad Muneer Umar ),( Houbing Song ) 한국인터넷정보학회 2016 KSII Transactions on Internet and Information Syst Vol.10 No.10
Energy efficiency in Wireless Sensor Networks (WSNs) is very appealing research area due to serious constrains on resources like storage, processing, and communication power of the sensor nodes. Due to limited capabilities of sensing nodes, such networks are composed of a large number of nodes. The higher number of nodes increases the overall performance in data collection from environment and transmission of packets among nodes. In such networks the nodes sense data and ultimately forward the information to a Base Station (BS). The main issues in WSNs revolve around energy consumption and delay in relaying of data. A lot of research work has been published in this area of achieving energy efficiency in the network. Various techniques have been proposed to divide such networks; like grid division of network, group based division, clustering, making logical layers of network, variable size clusters or groups and so on. In this paper a new technique of group based WSNs is proposed by using some features from recent published protocols i.e. “Energy-Efficient Multi-level and Distance Aware Clustering (EEMDC)” and “Energy-Efficient Multi-level and Distance Aware Clustering (EEUC)”. The proposed work is not only energy-efficient but also minimizes the delay in relaying of data from the sensor nodes to BS. Simulation results show, that it outperforms LEACH protocol by 38%, EEMDC by 10% and EEUC by 13%.
The endoscopic transnasal approach to the lesions of the craniocervical junction: two case reports
Baraa Dabboucy,Wissem Lahiani,Damien Bresson,Nouman Aldahak 영남대학교 의과대학 2023 Yeungnam University Journal of Medicine Vol.40 No.1
The endoscopic endonasal approach (EEA) to the craniovertebral junction (CVJ) has recently been considered a safer alternative and less invasive approach than the traditional transoral approach because the complications associated with the latter are avoided or minimized. Here, we present two challenging cases of CVJ pathologies. The first case involved os odontoideum associated with anterior displacement of the occipitocervical junction where the EEA was used, followed by C0-C1-C2 fusion using a posterior approach to decompress the CVJ, and was complicated by rhinorrhea and Candida albicans meningitis. The second case involved basilar invagination with syringomyelia previously treated using a posterior approach, where aggravation of neuropathic symptoms required combined treatment with EEA and occipitocervical fusion of C0-C2-C3-C4, with the postoperative course challenged by operative site infection requiring drainage with debridement and antibiotic therapy. The EEA is an alternative approach for accessing the CVJ in well-selected patients. Knowledge of EEA complications is crucial for the optimal care of patients.
Design of an Assistance Robot for Patients Suffering from Paraplegia
Shakir Khan,Muhammad Fahad Zeb,Nouman Ghafoor,Saad Jamshed,Muhammad Raheel Afzal,Amre Eizad 제어로봇시스템학회 2015 제어로봇시스템학회 국제학술대회 논문집 Vol.2015 No.10
The people with disabled lower limbs find it difficult to lead an independent life and the lack of upper body exercise may lead to disuse ailment. Various studies have shown that both children and adults benefit substantially from access to a means of independent mobility. Independent mobility is a dream for every person with some or the other physical disability especially in the case of paraplegics. In the research presented in this paper, an assistance platform was developed to help the paraplegic and elderly people by providing the ability to stand-up and move about. Virtual prototype technology was used to make the design and development of the robot more efficient using Solid-works™. The device developed may be used for rehabilitation of people recovering from extended periods of limb disuse and for paraplegic patients. Although some commercialized training machines and some developed lower-limb rehabilitation robots can perform adequate motion functions during lower limb training programs but the weight, size and cost of these devices limits their possibilities of use. In contrast, the proposed design has the potential to be used among the middle socio-economic class as a product in daily household works of the paraplegic patients.