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Dramatic changes in anatomical traits of a C4 grass Chrysopogon serrulatus Trin.(Poaceae)over a 1000 m elevational gradient

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Journal of Mountain Science 2023年第5期20卷 1316-1335页

作者： FATIMA Sana HAMEED Mansoor AHMAD Farooq AHMAD Muhammad Sajid Aqeel ANWAR Majid munir mahwish ASHRAF Muhammad SHAH Syed Mohsan Raza BASHARAT Sana AHMAD Iftikhar KHALIL Sangam Department of Botany Government Sadiq College Women UniversityBahawalpur 53100Pakistan Department of Botany University of Agriculture FaisalabadFaisalabad 38040Pakistan Department of Pharmacy Riphah International University Lahore 53770Pakistan Institute of Molecular Biology and Genetic Engineering The University of LahoreLahore 53770Pakistan Department of Botany Division of Science and TechnologyUniversity of EducationLahore 53770Pakistan Department of Forestry Range&Wildlife ManagementThe Islamia University of BahawalpurBahawalpur 53100Pakistan

Chrysopogon serrulatus(false beard-grass)is a dominant component of vegetation in the foothills of the *** study whole plant morphology,individuals of *** were collected from three plots at each of six locations spanning from 400 to 1,400 *** population colonizing the highest elevation modifications in different plant *** showed increased metaxylem number and *** the stem,especially outside of the vascular tissue,there was intensive sclerification indicative of increased xeromorphy as a survival *** the highest elevation,leaves were wider;aerenchyma formation and increased sclerification were noted in the leaf sheath;and a greater proportion of storage parenchyma was observed in the leaf blade,all indicators of *** contrast,leaves at lower elevations had xeric morphological features such as increased epidermal thickness,sclerification and more developed metaxylem *** conclusion,shifting of morphological features in below-and above-ground plant parts of *** were linked to shifts in environmental factors along this elevation gradient,thus enabling the successful distribution of this species along this elevation gradient.

关键词： Adaptive component Storage parenchyma Sclerification Metaxylem Aerenchyma

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Double Encryption Using Trigonometric Chaotic Map and XOR of an Image

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Computers, Materials & Continua 2021年第12期69卷 3033-3046页

作者： Orawit Thinnukool Thammarat Panityakul mahwish Bano College of Arts Media and TechnologyChiang Mai UniversityChiang Mai50200Thailand Division of Computational Science Prince of Songkla UniversityHat YaiSongkhla90110Thailand Department of Mathematics Air UniversityIslamabad44000Pakistan

In the most recent decades,a major number of image encryption plans have been *** vast majority of these plans reached a highsecurity level;however,their moderate speeds because of their complicated processes made them of no use in real-time *** by this,we propose another efficient and rapid image encryption plan dependent on the Trigonometric chaotic *** contrast to the most of current plans,we utilize this basic map to create just a couple of arbitrary rows and ***,to additionally speed up,we raise the processing unit from the pixel level to the row/column *** security of the new plot is accomplished through a substitution permutation network,where we apply a circular shift of rows and columns to break the solid connection of neighboring *** that point,we join the XOR operation with modulo function to cover the pixels values and forestall any leaking of ***-security tests and simulation analyses are carried out to exhibit that the scheme is very secure and exceptionally quick for real-time image processing at 80 fps(frames per second).

关键词： Double image encryption target image random image trigonometric chaotic map

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Self-Dual Weak Hopf Algebras

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Acta Mathematica Sinica,English Series 2008年第12期24卷 1935-1948页

作者： munir AHMED Department of Mathematics Zhejiang University Hangzhou Zhejiang 310027 P. R. China

In this paper, we define the notion of self-dual graded weak Hopf algebra and self-dual semilattice graded weak Hopf algebra. We give characterization of finite-dimensional such algebras when they are in structually simple forms in the sense of E. L. Green and E. N. Morcos. We also give the definition of self-dual weak Hopf quiver and apply these types of quivers to classify the finite- dimensional self-dual semilattice graded weak Hopf algebras. Finally, we prove partially the conjecture given by N. Andruskiewitsch and H.-J. Schneider in the case of finite-dimensional pointed semilattice graded weak Hopf algebra H when grH is self-dual.

关键词： weak Hopf algebra self-duality weak Hopf quiver

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High-dimensional atomic microscopy in surface plasmon polaritons

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Chinese Physics B 2020年第12期29卷 251-257页

作者： Akhtar munir Abdul Wahab Munsif Jan Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China Shanghai Branch National Laboratory for Physical Sciences at MicroscaleUniversity of Science and Technology of ChinaShanghai 201315China Key Laboratory of Quantum Information of Chinese Academy of Sciences(CAS) University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China

We develop a new scheme of two-dimensional(2D)and three-dimensional(3D)atom localization via absorption and gain spectra of surface plasmon polaritons(SPPs)in a closed loop four-level atomic *** the atom–field interaction,we construct a spatially dependent field by superimposing two(three)standing-wave fields(SWFs)in 2D(3D)atom localization,*** achieve high-precision and high spatial resolution of an atom localization by appropriately adjusting the system parameters such as probe field detuning and phase shifts of the *** absorption and gain spectra are used to attain information about the position of an atom in *** proposed scheme opens up a fascinating way to improve the atom localization that supplies some practical applications in a high-dimensional SPPs.

关键词： atom localization absorption and gain spectra four-level atomic system

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Modern planktonic foraminifera from the eastern Indian Ocean

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Acta Oceanologica Sinica 2018年第10期37卷 46-63页

作者： munir Sonia SUN Jun Tianjin Key Laboratory of Marine Resources and Chemistry Tianjin University of Science and Technology Research Centre for Indian Ocean Ecosystem Tianjin University of Science and Technology

A brief morphometric study of the recent planktonic foraminifera in the eastern Indian Ocean was provided with the taxonomic key to species, synonyms, SEM microphotographs of shells and chamber arrays. By recent classification, currently 20 species representing 13 genera and 6 families （Canderinidae, Heterohelicoidae, Hedbergellidae, Higerigerinoidae, Globigerinoidae, and Globorotaloidae） identified from the planktonic material of the eastern Indian Ocean up to a depth of 200 m. Their distribution in water （0-200 m） also reports on the new range of expansion in the eastern Indian Ocean, with Dentigloborotalia anfracta, Hastigerina pelagica, Streptochilus globigerus, Globigerinella calida, Globigerinella adamsi, Orcadia reidelii, Tenuitella parkerae, Tenuitella compressa, reported for the first time in this study area. In general, only around 50 planktonic species are valid worldwide, more specifically the species, e.g., H. pelagica, G. calida, G. adamsi, S. globigerus, O. riedeli, T. parkerae, T. compressa, which occur in the eastern Indian Ocean to fill the the paucity of the recent regional taxonomic literature and the problematic identification from the eastern Indian Ocean. This work aims to bridge this gap and help scientists, managers, educators and students to identify plankton foraminifers by using species notes and images.

关键词： planktonic foraminiferida Heterohelicoidae Hedbergellidae and Higerigerinoidae Globigerinoidae and Globorotaloidae eastern Indian Ocean

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The first snapshot study on horizontal distribution and identification of five peritrich ciliates (Genus Vorticella Linnaeus and Zoothamnium Bory de St. Vincent) from the eastern Indian Ocean

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Acta Oceanologica Sinica 2018年第10期37卷 79-85页

Epipont peritrich ciliates are one of the most sessilie protists that attached to the substrate of zooplankton communities especially copepods and crustaceans. Peritrich ciliates can be solitary or colonial form found from the coastal zones and embayment around the world. Present research report is the first snapshot study of the peritrich ciliates and the horizontal distribution in open waters from surface to 200 m depth in the eastern Indian Ocean. Recently, five peritrich ciliates, e.g., Vorticella oceanica, Zootharnnium alternans, Z. alrasheidi, Z. pelagicum, and Z. marinum were collected from plankton net tow samples during the cruise from April 10 to May 13, 2014. The characteristics of the peritrich ciliate were determined according to the shape of the zooids, the ciliary structure and the stalks. The morphometric shape, sizes and characters also explained by examination under light/scanning electron microscopy. Vorticella oceanica and Z. pelagicum showed their association with host such as diatom （i.e, Chaetoceros coarctatus） and copepod （Oithona brevicornis） including some individuals around the dinoflagellate species （Ceraitum tripose）. The distribution of these sessilid ciliates was dominated by the V. oceanica, Z. pelagicum and Z. rnarinurn at the southeast zone while the large colonies of Z. alrasheidi observed at the Bay of Bengal. This distribution can be influenced by substrate availability like diatom （Ch. coarctatus） and copepods （O. brevicornis）.

关键词： Vorticella oceanica Zoothamnium alternans Zoothamnium alrasheidi Zoothamnium marinum Zoothamnium pelagicum eastern Indian Ocean

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Enhancing Skin Cancer Diagnosis with Deep Learning:A Hybrid CNN-RNN Approach

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Computers, Materials & Continua 2024年第4期79卷 1497-1519页

作者： Syeda Shamaila Zareen Guangmin Sun mahwish Kundi Syed Furqan Qadri Salman Qadri Faculty of Information Technology Beijing University of TechnologyBeijing100124China Computer Science International Engineering Collage Maynooth UniversityKildareW23 F2H6Irland Research Center for Data Hub and Security Zhejiang LabHangzhou311121China Computer Science Department MNS University of AgricultureMultan59220Pakistan

Skin cancer diagnosis is difficult due to lesion presentation variability. Conventionalmethods struggle to manuallyextract features and capture lesions spatial and temporal variations. This study introduces a deep learning-basedConvolutional and Recurrent Neural Network (CNN-RNN) model with a ResNet-50 architecture which usedas the feature extractor to enhance skin cancer classification. Leveraging synergistic spatial feature extractionand temporal sequence learning, the model demonstrates robust performance on a dataset of 9000 skin lesionphotos from nine cancer types. Using pre-trained ResNet-50 for spatial data extraction and Long Short-TermMemory (LSTM) for temporal dependencies, the model achieves a high average recognition accuracy, surpassingprevious methods. The comprehensive evaluation, including accuracy, precision, recall, and F1-score, underscoresthe model’s competence in categorizing skin cancer types. This research contributes a sophisticated model andvaluable guidance for deep learning-based diagnostics, also this model excels in overcoming spatial and temporalcomplexities, offering a sophisticated solution for dermatological diagnostics research.

关键词： Skin cancer classification deep learning Convolutional Neural Network(CNN) RNN ResNet-50

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Nano-tribological behavior of graphene nanoplatelet-reinforced magnesium matrix nanocomposites

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Journal of Magnesium and Alloys 2021年第3期9卷 895-909页

作者： Mohammad Shahin Khurram munir Cuie Wen Yuncang Li School of Engineering RMIT UniversityMelbourneVIC 3001Australia

The corrosion resistance and wear resistance of metallic biomaterials are critically important for orthopedic hard-tissue replacement applications because the lack of such properties not only adversely affects their mechanical integrity but also allows the release of wear debris into the human *** this study,the potential of zirconium(Zr)as an alloying element and graphene nanoplatelets(GNPs)as a nano-reinforcement material were investigated in relation to improving the tribological performance of pure magnesium(Mg).The GNPs-reinforced Mg matrix nanocomposites(MNCs)were fabricated using powder *** indicate that additions of 0.5 wt.%Zr and0.1 wt.%GNPs to Mg matrices significantly improved the wear resistance by 89%and 92%at 200μN load,60%and 80%at 100μN load,and 94%and 93%at 50μN load,respectively,as compared to the wear resistance of pure *** wear depth and coefficient of friction of the MNC containing 0.5 wt.%Zr and 0.1 wt.%GNPs(Mg0.5 Zr0.1 GNPs MNC)were considerably reduced as compared to pure Mg and Mg0.5 *** results demonstrate that the Mg0.5 Zr0.1 GNPs MNC is promising for orthopedic applications in relation to its excellent tribological performance.

关键词： Coefficient of friction Graphene nanoplatelet Magnesium matrix nanocomposite Wear

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Graphene nanoplatelets-reinforced magnesium metal matrix nanocomposites with superior mechanical and corrosion performance for biomedical applications

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Journal of Magnesium and Alloys 2020年第1期8卷 269-290页

作者： Khurram munir Cuie Wen Yuncang Li School of Engineering RMIT UniversityMelbourneVictoria 3001Australia

Magnesium(Mg)metal matrix composites(MMCs)reinforced with graphene nanoplatelets(GNPs)have been developed by powder metallurgy(PM).GNPs with different concentrations(0.1,0.2,and 0.3 wt.%),layer thicknesses(5 nm and 9 nm),and particle sizes(15μm and 5μm)were dispersed into Mg powder by high-energy ball-milling *** microstructure and mechanical properties of the fabricated composites were characterized using transmission electron microscopy(TEM),scanning electron microscopy(SEM),energy dispersive X-ray spectroscopy(EDX),X-ray diffraction(XRD),Raman spectroscopy(RS),and compression *** corrosion resistance was evaluated by electrochemical tests and hydrogen evolution *** cytotoxicity of Mg-GNPs composites was assessed using osteoblast-like SaOS2 *** results indicate that GNPs are excellent candidates as reinforcements in Mg matrices for the manufacture of biodegradable Mg-based composite *** addition improved the mechanical properties of Mg via synergetic strengthening ***,retaining the structural integrity of GNPs during processing improved the ductility,compressive strength,and corrosion resistance of the Mg-GNP *** assessments did not reveal any significant toxicity with the addition of GNPs to Mg *** study demonstrates that Mg-xGNPs with x<0.3 wt.%,may constitute novel biodegradable implant materials for load-bearing applications.

关键词： In vitro cytotoxicity Biocorrosion Magnesium-graphene composite Mechanical properties Strengthening mechanisms

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Sleep quality and characteristics of older adults with acute cardiovascular disease

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Journal of Geriatric Cardiology 2024年第3期21卷 369-373页

作者： Haroon munir Michael Goldfarb Faculty of Medicine and Health Sciences McGill UniversityMontrealCanada Division of Cardiology Jewish General HospitalMcGill UniversityMontrealCanada

Sleep plays a vital role in restoring the physical and mental health of people with cardiovascular ***,the hospital setting is not a conducive environment for *** interruptions by members of the care team,including vital sign checks,medication delivery,and blood draws for laboratory investigations,are routinely done in many *** interruptions by staff and noise by other patients have been cited as barriers to restorative sleep in the hospital.

关键词： Sleep routine characteristics

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