|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 层状双氢氧化物(LDHs)的合成及应用(英文)显示文摘Layered double hydroxides, a class of anionic clays possessing sandwich like structure in which negative anions are sandwiched into positively charged metal layers in a repeating manner, have been studied extensively. Layered double hydroxides could be fabricated with combination of different divalent(Cd^(2+), Mn^(2+), Fe^(2+), Pb^(2+)) and trivalent(Al^(3+), Cr^(3+), Fe^(3+)) metals and layered arrangement imparts unique properties such as adsorption properties and catalytic properties in these compounds. Exciting feature of these compounds is the memory effect. There are a number of methods to synthesize these layered compounds, such as co-precipitation, hydrothermal, sol-gel, urea hydrolysis,?etc. The synthesized LDHs can be characterized morphologically and compositionally i.e. scanning electron microscopy, transmission electron microscopy, powder X-Ray diffraction, Mossbauer spectroscopy, thermogravimetric analysis, XPS, etc. The wonderful feature of layered double hydroxides is the pliancy of interlayer space enabling them to accommodate various anionic species, and high surface area making them efficient in numerous applications such as adsorbents, anion exchange, catalysts, and biological compatible. | Saba Jamil Afaaf Rahat Alvi Shanza Rauf Khan Muhammad Ramzan Saeed Ashraf Janjua | 2019 | 化学进展2019，31，2： | 3 |
| 2 | Detection of Copy-Move Forgery in Digital Images Using Singular Value Decomposition显示文摘This paper presents an improved approach for detecting copy-move forgery based on singular value decomposition(SVD).It is a block-based method where the image is scanned from left to right and top to down by a sliding window with a determined size.At each step,the SVD is determined.First,the diagonal matrix’s maximum value(norm)is selected(representing the scaling factor for SVD and a fixed value for each set of matrix elements even when rotating thematrix or scaled).Then,the similar norms are grouped,and each leading group is separated into many subgroups(elements of each subgroup are neighbors)according to 8-adjacency(the subgroups for each leading group must be far from others by a specific distance).After that,a weight is assigned for each subgroup to classify the image as forgery or not.Finally,the F1 score of the proposed system is measured,reaching 99.1%.This approach is robust against rotation,scaling,noisy images,and illumination variation.It is compared with other similarmethods and presents very promised results. | Zaid Nidhal Khudhair Farhan Mohamed Amjad Rehman Tanzila Saba Saeed Ali bahaj | 2023 | Computers, Materials & Continua2023，，2： | 1 |
| 3 | Gold (III) Complexes with Thiolactate and bis-(1,4-Sodiumthiolactate) Butane Ligands显示文摘 | Buttrus Nabeel Hadi Al-Asalli Saba Momtaz Saeed Farah Tariq | 2013 | Journal of Chemistry and Chemical Engineering2013，7，6： | 0 |
| 4 | Design and mechanism of building responsive skins: State-of-the-art and systematic analysis显示文摘The demand to satisfy environmental and economic performance requirements of buildings highlights the application of the responsive skin facades in offering superior performance,as compared to conventional façades.With this respect,responsive skins have become a growing field of research during the recent decade while a thorough review of studies investigating their design and technology aspects is still missing.To fill the identified gap,this study aims to present a systematic literature review and state of the art in an untouched research area of the responsive skins,integrated with their geometric and mechanism design approaches.To this end,a total of 89 studies,collected from two major bibliographic databases of Scopus and Google Scholar from the first of 2010 to the mid of 2021,were reviewed and several classifications and analyses on the associated design thinking,skin systems and responsive mechanisms were presented.The gap analysis of the findings indicates that the lack of controllable substitution design for mechanical skins is one of the reasons preventing the application of responsive skins in construction industry.Furthermore,the gap between simulation and constructability and the relationship between the designed skin geometry with climatic analysis and performance provide basis for future studies. | Saba Fattahi Tabasi Saeed Banihashemi | 2022 | Frontiers of Architectural Research2022，11，6： | 0 |
| 5 | IoMT Enabled Melanoma Detection Using Improved Region Growing Lesion Boundary Extraction显示文摘The Internet ofMedical Things(IoMT)and cloud-based healthcare applications,services are beneficial for better decision-making in recent years.Melanoma is a deadly cancer with a highermortality rate than other skin cancer types such as basal cell,squamous cell,andMerkel cell.However,detection and treatment at an early stage can result in a higher chance of survival.The classical methods of detection are expensive and labor-intensive.Also,they rely on a trained practitioner’s level,and the availability of the needed equipment is essential for the early detection of Melanoma.The current improvement in computer-aided systems is providing very encouraging results in terms of precision and effectiveness.In this article,we propose an improved region growing technique for efficient extraction of the lesion boundary.This analysis and detection ofMelanoma are helpful for the expert dermatologist.The CNN features are extracted using the pre-trained VGG-19 deep learning model.In the end,the selected features are classified by SVM.The proposed technique is gauged on openly accessible two datasets ISIC 2017 and PH2.For the evaluation of our proposed framework,qualitative and quantitative experiments are performed.The suggested segmentation method has provided encouraging statistical results of Jaccard index 0.94,accuracy 95.7%on ISIC 2017,and Jaccard index 0.91,accuracy 93.3%on the PH2 dataset.These results are notably better than the results of prevalent methods available on the same datasets.The machine learning SVMclassifier executes significantly well on the suggested feature vector,and the comparative analysis is carried out with existing methods in terms of accuracy.The proposed method detects and classifies melanoma far better than other methods.Besides,our framework gained promising results in both segmentation and classification phases. | Tanzila Saba Rabia Javed Mohd Shafry Mohd Rahim Amjad Rehman Saeed Ali Bahaj | 2022 | Computers, Materials & Continua2022，，6： | 0 |
| 6 | Application of Zinc, Iron and Boron Enhances Productivity and Grain Biofortification of Mungbean显示文摘Deficiencies of essential vitamins,iron(Fe),and zinc(Zn)affect over one-half of the world’s population.A significant progress has been made to control micronutrient deficiencies through supplementation,but new approaches are needed,especially to reach the rural poor.Agronomic biofortification of pulses with Zn,Fe,and boron(B)offers a pragmatic solution to combat hidden hunger instead of food fortification and supplementation.Moreover,it also has positive effects on crop production as well.Therefore,we conducted three separate field experiments for two consecutive years to evaluate the impact of soil and foliar application of the aforementioned nutrients on the yield and seed biofortification of mungbean.Soil application of Zn at 0,4.125,8.25,Fe at 0,2.5,5.0 and B at 0,0.55,1.1 kg ha−1 was done in the first,second and third experiment,respectively.Foliar application in these experiments was done at 0.3%Zn,0.2%Fe and 0.1%B respectively one week after flowering initiation.Data revealed that soil-applied Zn,Fe and B at 8.25,5.0 and 1.1 kg ha−1,respectively,enhanced the grain yield of mungbean;however,this increase in yield was statistically similar to that recorded with Zn,Fe and B at 4.125,2.5 and 0.55 kg ha−1,respectively.Foliar application of these nutrients at flower initiation significantly enhanced the Zn contents by 28%and 31%,Fe contents by 80%and 78%,while B contents by 98%and 116%over control during 2019 and 2020,respectively.It was concluded from the results that soil application of Zn,Fe,and B enhanced the yield performance of mungbean;while significant improvements in seed Zn,Fe,and B contents were recorded with foliar application of these nutrients. | Muhammad Zafar Siraj Ahmed Muhammad Kashif Munir Nawal Zafar Muhammad Saqib Muhammad Aleem Sarwar Saba Iqbal Baber Ali Naveed Akhtar Basharat Ali Sadam Hussain Muhammad Saeed Mohammad Khalid Al-Sadoon Aneela Gulnaz | 2023 | Phyton-International Journal of Experimental Botany2023，92，4： | 0 |
| 7 | Carrier multiplication in germanium nanocrystals显示文摘Carrier multiplication is demonstrated in a solid-state dispersion of germanium nanocrystals in a silicon–dioxide matrix.This is performed by comparing ultrafast photo-induced absorption transients at different pump photon energies below and above the threshold energy for this process.The average germanium nanocrystal size is approximately 5–6 nm,as inferred from photoluminescence and Raman spectra.A carrier multiplication efficiency of approximately 190%is measured for photo-excitation at 2.8 times the optical bandgap of germanium nanocrystals,deduced from their photoluminescence spectra. | Saba Saeed Chris de Weerd Peter Stallinga Frank CM Spoor Arjan J Houtepen Laurens DA Siebbeles Tom Gregorkiewicz | 2015 | Light(Science & Applications)2015，4，1： | 0 |
| 8 | Efficient Facial Recognition Authentication Using Edge and Density Variant Sketch Generator显示文摘Image translation plays a significant role in realistic image synthesis,entertainment tasks such as editing and colorization,and security including personal identification.In Edge GAN,the major contribution is attribute guided vector that enables high visual quality content generation.This research study proposes automatic face image realism from freehand sketches based on Edge GAN.We propose a density variant image synthesis model,allowing the input sketch to encompass face features with minute details.The density level is projected into non-latent space,having a linear controlled function parameter.This assists the user to appropriately devise the variant densities of facial sketches and image synthesis.Composite data set of Large Scale CelebFaces Attributes(ClebA),Labelled Faces in theWild(LFWH),Chinese University of Hong Kong(CHUK),and self-generated Asian images are used to evaluate the proposed approach.The solution is validated to have the capability for generating realistic face images through quantitative and qualitative results and human evaluation. | Summra Saleem M.Usman Ghani Khan Tanzila Saba Ibrahim Abunadi Amjad Rehman Saeed Ali Bahaj | 2022 | Computers, Materials & Continua2022，，1： | 0 |
| 9 | Effect of foreign ions for the determination of metal ion in the presence of surfactants显示文摘Aluminum is the third most abundant metal in the Earth’s crust.Despite its ubiquitous nature it is present in small amount in living organisms.Aluminum toxicity has been implicated in the pathogenesis of renal distinct clinical syndromes,including progressive and fatal encephalopathy and bone diseases.In the present study,Al was selected for the analysis by complexometric method.This method was based on the formation of a red colored ternary complex by the reaction of Aluminum with Aluminon(Aurin tricarboxylic acid triammonium salt)in the presence of micellar medium.The ternary complex of Aluminum with the surfactant Triton X-100 shows a maximum absorbance at 530 nm wavelength at pH 4.0 while with the sodium dodecyl sulfate it shows a maximum absorbance at 525 nm and at pH 5.0.The reaction was proceeded by the variation in pH and concentrations of surfactants,aluminon,aluminum.Their effects on the reaction of aluminum with aluminon complex in micellar media were recorded by UV-visible spectrophotometer.The reaction was found to be extremely rapid at room temperature.The system obeys Lambert Beer’s law between 0.24 and 21.74μg/mL concentrations with Triton X-100.The values of slope,intercept and correlation coefficients were 0.07,0.348 and 0.989,respectively.The concentration varied between 0.24 and 24.14μg/mL with sodium dodecyl sulfate and the values of slope,intercept and correlation coefficients were 0.029,0.148 and 0.962,respectively.The foreign ion effect was also tested by keeping the constant concentration of metal ion and determining its concentration in the presence of different foreign ions.The method was also applied for the determination of Al(III)in pharmaceutical formulations and water samples,which showed an excellent resemblance between reported and obtained results. | Saba SAEED Hajira TAHIR Muhammad SULTAN Qazi JAHANZEB | 2011 | Frontiers of Chemistry in China2011，6，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员