检索结果-南通市图书馆

A Lightweight Approach for Skin Lesion Detection Through Optimal Features Fusion

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2022年第1期70卷 1617-1630页

作者： Khadija manzoor Fiaz Majeed Ansar Siddique Talha Meraj Hafiz Tayyab Rauf Mohammed A.El-Meligy Mohamed Sharaf Abd Elatty E.Abd Elgawad Department of Information Technology University of GujratGujrat50700Pakistan Department of Software Engineering University of GujratGujrat50700Pakistan Department of Computer Science COMSATS University Islamabad-Wah CampusWah Cantt47040Pakistan Centre for Smart Systems AI and CybersecurityStaffordshire UniversityStoke-on-TrentUK Advanced Manufacturing Institute King Saud UniversityRiyadh11421Saudi Arabia Department of Industrial Engineering College of EngineeringKing Saud UniversityRiyadh11421Saudi Arabia

Skin diseases effectively influence all parts of *** and accurate detection of skin cancer is necessary to avoid significant *** manual detection of skin diseases by dermatologists leads to misclassification due to the same intensity and color ***,an automated system to identify these skin diseases is *** studies on skin disease classification using different techniques have been ***,previous techniques failed to identify multi-class skin disease images due to their similar *** the proposed study,a computer-aided framework for automatic skin disease detection is *** the proposed research,we collected and normalized the datasets from two databases(ISIC archive,Mendeley)based on six Basal Cell Carcinoma(BCC),Actinic Keratosis(AK),Seborrheic Keratosis(SK),Nevus(N),Squamous Cell Carcinoma(SCC),and Melanoma(M)common skin ***,segmentation is performed using deep Convolutional Neural Networks(CNN).Furthermore,three types of features are extracted from segmented skin lesions:ABCD rule,GLCM,and in-depth *** transfer learning is used for deep feature extraction,while a support vector machine(SVM)is used for *** results show that SVM outperformed other studies in terms of accuracy,as AK disease achieved 100%accuracy,BCC 92.7%,M 95.1%,N 97.8%,SK 93.1%,SCC 91.4%with a global accuracy of 95.4%.

关键词： AlexNet CNN GLCM SVMs skin disease

SPSSNet: a real-time network for image semantic segmentation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Information Technology & Electronic Engineering 2020年第12期21卷 1770-1782页

作者： Saqib MAMOON Muhammad Arslan manzoor Fa-en ZHANG Zakir ALI Jian-feng LU School of Computer Science and Engineering Nanjing University of Science&TechnologyNanjing 210094China Alnnovation Beijing 100080China

Although deep neural networks(DNNs)have achieved great success in semantic segmentation tasks,it is still challenging for real-time applications.A large number of feature channels,parameters,and floating-point operations make the network sluggish and computationally heavy,which is not desirable for real-time tasks such as robotics and autonomous *** approaches,however,usually sacrifice spatial resolution to achieve inference speed in real time,resulting in poor *** this paper,we propose a light-weight stage-pooling semantic segmentation network(SPSSN),which can efficiently reuse the paramount features from early layers at multiple stages,at different spatial *** takes input of full resolution 2048×1024 pixels,uses only 1.42×10~6 parameters,yields 69.4%m Io U accuracy without pre-training,and obtains an inference speed of 59 frames/s on the Cityscapes *** can run directly on mobile devices in real time,due to its light-weight *** demonstrate the effectiveness of the proposed network,we compare our results with those of state-of-the-art networks.

关键词： Real-time semantic segmentation Stage-pooling Feature reuse

Open reduction and internal fixation for displaced supracondylar fractures of the humerus in children with crossed K-wires via lateral approach

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Traumatology 2014年第3期17卷 130-135页

作者： Shahid Hussain manzoor Ahmad Tufail Muzaffar Registrar Orthopedics SKIMS Medical College &Hospital Srinagar India Registrar Anaesthetist Hospital for Bone & JointSurgery Barzulla Srinagar India MBBS DNB physical Medicine and RehabilitationSrinagar India

Objective： To assess the therapeutic results of open reduction and internal fixation with crossed K-wires via lateral approach for displaced supracondvlar fractures of the humerus in children. Methods： We prospectively followed 52 children who presented with Gartland type 3 displaced supraeondylar fractures of the humerus and were managed by open reduction and internal fixation with crossed K-wires via lateral *** were 37 male and 15 female patients; average age was 7.39 years. The most common mechanism of trauma was fall while playing （n=23）, followed by fall from height （n=20）, road traffic accidents （n-5） and fall from standing height （n=2）. In 2 cases, mode of injury was not available. The mean follow-up was 12 months and patients were assessed according to Flynn＇s criteria. Results： Lateral approach provided an excellent view of the lateral column between two nervous planes and enabled an anatomical reduction in all cases. Immobilizing the elbow at 90 degrees or more of flexion was not needed after cross K-wire fixation. Majority of patients regained full range of motion within 6 weeks of pin removal. Two patients had postoperative ulnar nerve injuries that resolved after pin removal. The common late complication of cubitus varus was not seen in any patient. Delayed presentation to the emergency department, repeated manipulations by bone setters and massage with edible oil were responsible for stiffness in 5 patients. Superficial pin tract infection was noted in 5 patients that resolved with dressings and antibiotics. No deep infection occurred. A detailed clinical examination and radiographic analysis was done at final follow-up. They included measurement of carrying angle and range of movements of both operated and normal sides, and radiographs of both upper limbs for comparison. According to Flynn＇s criteria, 90.4% patients showed satisfactory results. Conclusion： Lateral approach for open reduction and internal fixation of the widely-displaced

关键词： Humeral fractures Fracture fixation,internal Bone wires Child

Comparative Study of Various Organic Fertilizers Effect on Growth and Yield of Two Economically Important Crops, Potato and Pea

在线全文

学校读者我要写书评

暂无评论

Agricultural Sciences 2018年第6期9卷 703-717页

作者： Aisha Wazir Zishan Gul manzoor Hussain Department of Botany Faculty of Sciences Hazara University Mansehra Pakistan Hazara Agriculture Research Station Abbottabad Pakistan

In the present experiment, the effect of various house hold wastes i.e. T1 (egg shell powder), T2 (wood ash), T3 (banana peel), T4 (used tea waste), T5 (egg shell tea) and T6 (control) used as organic fertilizers on growth and yield of two important vegetables i.e. potato and pea was investigated. Among all the treatments, the minimum average number of days to germination was observed in T3 in both potato and pea. The overall growth and development of potato and pea plants increased and the average plant height after 30, 60 and 90 days was greater in plants of treatment T1 (egg shell powder). In case of potato, the highest mean plant height (14.75 cm) was observed in treatment T1, followed by T3 and T4 (10.62 cm and 9.87 cm) respectively after 90 days of the emergence. T1 treatment increases the no. of leaves, no. of nodes, no. of branches and leaf area. Regarding tuber yield, the tubers were classified as large (>30 grams), medium (15 - 30 grams) and small (0.4 - 15 grams). T1 treatment produced greater average number of large size tubers (2.25) per plant, followed by T3 (1.25);however, the medium and small tubers followed comparable trends with differences among treatments. The average tuber yield (per potato plant) in treatment T1 was higher (113.78 g). In case of pea, T4 treatment (used tea waste) showed the highest mean plant height (82.25 cm). The treatment T1 (eggshell powder), T3 (banana peel) and T4 (used tea waste) showed positive effect on average pod yield (64.82 g, 66.67 g and 114.35 g) respectively. Number of grains per pod and pod size has been found higher in case of treatment T4. It has been concluded that among the different organic treatments, eggshell powder, banana peel and used tea waste were found best as organic fertilizer source for the two vegetables i.e. potato and pea.

关键词： Organic Fertilizers Potato Pea Egg Shell Banana Peel Used Tea Waste

Hydroisomerization of n-heptane on Pt promoted phosphomolybdate catalysts

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Chemistry and Chemical Engineering 2009年第1期3卷 36-43页

作者： Kanaparthi Ramesh Siti Norhayati rubab Shabaz Khan Chilukoti Srilakshmi LIU Yan Institute of Chemical and Engineering Sciences Jurong Island 627833 Singapore

Phospbomolybdate （PMo） with varying Mo loadings ranging from 5-30 wt% on alumina were prepared by incipient wetness impregnation method. 0.5 wt% of Pt was further loaded in order to prepare the bifunctional （metal-acid） Pt-PMo/Al2O3 catalysts. Thus prepared catalysts showed very high catalytic activities for n-heptane hydroisomerization compared with Pt impregnated MoO3 catalysts supported either on Al2O3 or on AIPO4. The conversion of n-heptane increased with Mo loading up to 20 wt% and slightly decreased with further Mo loading. However, the selectivity towards isomers showed an increasing trend up to 30 wt% of Mo in the catalyst. A relationship between catalytic activity and acidic strength was established in the present study.

关键词： phosphomolybdate Pt hydroisomerization n-heptane

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

大跨度结构网架支座摩擦装置的损伤控制

大跨度结构网架支座摩擦装置的损伤控制

作者： Mir Majaid manzoor 大连理工大学

学位级别：硕士

在大跨度结构中,网架支座可以将上部钢网架连接到下部钢筋混凝土支撑结构。然而,在多次地震中,网架支座处可以观察到混凝土边缘破坏。本研究的主要目的是指出当前规范的局限性,并且对钢筋混凝土支撑空间桁架连接设计中使用的边缘距离和... 详细信息

在大跨度结构中,网架支座可以将上部钢网架连接到下部钢筋混凝土支撑结构。然而,在多次地震中,网架支座处可以观察到混凝土边缘破坏。本研究的主要目的是指出当前规范的局限性,并且对钢筋混凝土支撑空间桁架连接设计中使用的边缘距离和底板孔形状提供建议。从安全角度来看,这是一个重要的问题,因为体育馆等大跨度结构经常被用作地震期间的应急避难所。边缘破坏使混凝土从柱的顶部掉落,对撤离人员造成风险,并影响结构的整体安全。此外,我们的研究还旨在指导设计师建立更精确的结构模型,因为在空间桁架结构中,网架支座通常过于简化。近二十年来,中国和日本对网架支座的研究十分广泛。然而,这些研究大多是以这两个国家的母语进行的,非常分散,许多有价值的研究对英语读者来说是难于理解的。因此,本研究系统地介绍了中日两国网架支座研究的详细文献综述,并为该领域的研究人员提供未来的研究方向。本文根据网架支座的破坏模式,提出了网架支座在轴力、弯矩和剪力同时作用下的受力机理。首先,由于美国和日本规范计算混凝土极限强度的方法不同,在美国和日本规范的帮助下,建立了带圆孔和槽孔网架支座的简化理论模型来预测其极限强度。然后通过文献中的试验研究对所提出的模型进行了验证。验证结果表明,在美国规范的帮助下,该模型预测极限强度的精度较低,且预期破坏模式与试验结果不一致。然而,在日本规范的帮助下,所提出的模型可以更好地预测极限强度,并且破坏模式也与试验结果一致。因此,建议采用符合日本规范的方法进行网架支座的抗震设计。为了进一步验证所提出的理论模型和参数研究,本文使用商用有限元软件ABAQUS/CAE进行有限元分析。通过将滞回曲线、破坏模式和极限抗剪强度与文献中的试件进行比较,验证了有限元模型的准确性和可靠性。有限元分析结果表明,当荷载从单调变为循环时,应考虑折减系数。在随后的参数研究中,发现所提出模型的预期破坏模式与有限元分析结果吻合。此外,参数研究表明,顶板接缝的破坏受边缘距离的影响。另一方面,当前规范低估了网架支座设计中的边缘距离,因此建议对规范进行更新,以防止网架支座出现故障。最后,本文提出了网架支座摩擦耗能装置的概念和实现方法。详细讨论了碟形弹簧的构造、机理和理论分析,并对碟形弹簧进行了试验测试和有限元研究。提出了带有摩擦耗能装置的网架支座的ABAQUS三维模型。结果表明,与传统结构的网架支座相比,该装置在高轴向载荷下具有更稳定的耗能能力。此外,碟形弹簧的引入通过降低螺栓损失,防止盖板旋转,从而进一步提高了网架支座的性能。

关键词：网架支座边缘距离抗震性能强度评估摩擦装置

Estimation of erosion induced nutrients loss under different land uses: A case study in Miandam Valley, Swat Pakistan

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

International Journal of Agricultural and Biological Engineering 2021年第2期14卷 135-141页

作者： Nowsher Yousaf Bushra Khan Dennis C.Flanagan Ishaq Ahmad Mian Javaid Iqbal Irfan Rashid Salma Khalid Nasreen Ghaffar Sadaf manzoor Muhammad Bilal Department of Environmental Sciences University of PeshawarKhyber Pakhtunkhwa 25120Pakistan USDA-Agricultural Research Service National Soil Erosion Research LaboratoryPurdue UniversityWest LafayetteIN 47907USA Department of Soil and Environmental Sciences The University of AgriculturePeshawarKhyber Pakhtunkhwa 25000Pakistan Department of Botany University of KashmirSrinagarJ&K 190006India Prime Institute of Public Health Prime FoundationRiphah International UniversityIslamabad 44000Pakistan Islamia College Peshawar Khyber Pakhtunkhwa 25120Pakistan

In order to design Sustainable Land Management(SLM)plans or interventions it is important to understand the land use change and subsequent *** basic aim of this study was to assess the impact of land use land cover(LULC)change on soil physico-chemical properties and nutrients loss under different land use/land cover changes within Miandam watershed of Swat valley,*** study area was divided into three major types on the basis LULC type(Dense forest,Moderate forest and Agriculture land).A total of 81 soil samples were collected from the study area(27 from each land use)through stratified random sampling and were transferred to the *** prepared soil samples were then tested for various physico-chemical properties such as pH,electrical conductivity,contents of organic matter,organic carbon,sand,silt,clay,nitrogen,phosphorus,potassium,iron,copper and *** showed that LULC significantly affected all soil parameters except electrical conductivity and *** all the nutrients assessed,the enrichment ratio was greater than 1 which showed that the most fertile layer of the soil in the cropped areas was transported through soil *** this study,time-series satellite images were used to determine the spatiotemporal changes in the LULC of Miandam valley of Swat,Pakistan,and the possible effect of LULC on soil properties was *** information generated on the soil properties as indicators of soil health could be used to inform the stakeholders about the effect of LULC change in the study ***-temporal image acquired by Landsat sensors for the year 2018 was used for quantifying changes in the study *** Landsat images for the year 2018 were classified into six land cover/land use *** increase in agricultural activities caused an increase in the land farming areas which led to an increase in the rate of deforestation in the ***,the present study results reveal that the use of the soil for agriculture i

关键词： land use/land cover soil properties soil nutrients Miandam Swat valley

Rice molecular markers and genetic mapping:Current status and prospects

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Integrative Agriculture 2017年第9期16卷 1879-1891页

作者： Ghulam Shabir Kashif Aslam Abdul Rehman Khan Muhammad Shahid Hamid manzoor Sibgha Noreen Mueen Alam Khan Muhammad Baber Muhammad Sabar Shahid Masood Shah Muhammad Arif National Institute for Biotechnology and Genetic Engineering(NIBGE) Faisalabad 38000Pakistan Biotechnology Program Environmental SciencesCOMSA TS Institute of Information TechnologyAbbottabad 22010Pakistan Institute of Molecular Biology and Biotechnology Bahauddin Zakariya UniversityMultan 60000Pakistan Rice Research Institute Kala Shah Kaku 39020Pakistan Department of Bioinformatics and Biotechnology Government College UniversityFaisalabad 38000Pakistan Institute of Pure and Applied Biology Bahauddin Zakariya UniversityMultan 60000Pakistan Department of Plant Breeding and Genetics The Islamia University of BahawalpurBahawalpur 63100Pakistan National Center for Soybean Improvement Nanjing Agricultural UniversityNanjing 210095P.R.China

Dramatic changes in climatic conditions that supplement the biotic and abiotic stresses pose severe threat to the sustainable rice production and have made it a difficult task for rice molecular breeders to enhance production and productivity under these stress factors. The main focus of rice molecular breeders is to understand the fundamentals of molecular pathways involved in complex agronomic traits to increase the yield. The availability of complete rice genome sequence and recent improvements in rice genomics research has made it possible to detect and map accurately a large number of genes by using linkage to DNA markers. Linkage mapping is an effective approach to identify the genetic markers which are co-segregating with target traits within the family. The ideas of genetic diversity, quantitative trait locus（QTL） mapping, and marker-assisted selection（MAS） are evolving into more efficient concepts of linkage disequilibrium（LD） also called association mapping and genomic selection（GS）, respectively. The use of cost-effective DNA markers derived from the fine mapped position of the genes for important agronomic traits will provide opportunities for breeders to develop high-yielding, stress-resistant, and better quality rice cultivars. Here we focus on the progress of molecular marker technologies, their application in genetic mapping and evolution of association mapping techniques in rice.

关键词： genetic mapping molecular markers maker assisted selection Oryza sativa L quantitative trait loci

基于DRL的主动RIS安全无线通信优化方法

在线全文

学校读者我要写书评

暂无评论

计算机应用研究 2023年第9期40卷 2808-2814页

作者：刘文涛 manzoor Ahmed 林青青岛大学计算机科学技术学院山东青岛266071

针对可重构智能表面(reconfigurable intelligent surface,RIS)辅助的安全无线通信系统在保密率优化问题中存在的信道空间连续变化、传统数学优化方法难以逼近最优解等问题,提出一种基于深度强化学习的SEC-DDPG(security deep determini... 详细信息

针对可重构智能表面(reconfigurable intelligent surface,RIS)辅助的安全无线通信系统在保密率优化问题中存在的信道空间连续变化、传统数学优化方法难以逼近最优解等问题,提出一种基于深度强化学习的SEC-DDPG(security deep deterministic policy gradient)算法。通过将RIS通信系统建模为连续变化空间中的马尔可夫决策过程,联合优化传输波束赋形和反射波束赋形达到最大化用户保密率的目的。仿真实验结果显示,在不同的传输功率及反射单元数量下,SEC-DDPG算法在主动和被动RIS系统中得到的最优保密率均比传统的交替优化算法有15%~20%的提升。研究结果表明,主动RIS场景下的安全性要优于被动RIS,与交替优化算法相比,SEC-DDPG算法能显著提高安全无线通信系统的用户保密率且具有鲁棒性,接近系统的最佳保密性能。

关键词：主动可重构智能表面深度强化学习深度确定性策略梯度波束赋形乘法衰落多输入单输出物理层安全