|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Quantitative analysis of cefixime via complexation with palladium(Ⅱ) in pharmaceutical formulations by spectrophotometry显示文摘An optimized and validated spectrophotometric method has been developed for the determination of cefixime in pharmaceutical formulations. The method is based on the complexation reaction between cefixime and palladium ion in the presence of acidic buffer solution (pH 3) in ethanol-distilled water medium at room temperature. The complex absorbed maximally at 352 nm. Beer's law is obeyed in the working concentration range of 2.5-35 μg/mL with apparent molar absorptivity of 1.015×104L/mol cm and Sandell's sensitivity of 0.001 μg/cm2 /0.001 absorbance unit. The limits of detection and quantitation for the proposed method are 0.175 and 0.583 μg/mL, respectively. The effect of common excipients used as additives has been studied in the determination of cefixime. The proposed method has been successfully applied for the determination of cefixime in pharmaceutical formulations. The results obtained by the proposed method were statistically compared with the reference method using t and F values and found no significant difference between the two methods. | Syed Najmul Hejaz Azmi Bashir Iqbal Nada Said Hassan Al-Humaimi Iman Rashid Saif Al-Salmani Noora Ali Saad Al-Ghafri Nafisur Rahman | 2013 | Journal of Pharmaceutical Analysis2013，3，4： | 3 |
| 2 | Control of an exoskeleton robot arm with sliding mode exponential reaching law显示文摘 | RAHMAN M H SAAD M KENNE J P | 2013 | International Journal of Control Automation and Systems2013，11，1： | 1 |
| 3 | Rotor position and speed estimation of a variable structure direct-torque-controlled IPM synchronous motor drive at very low speeds including standstill显示文摘 | Saad Sayeef Gilbert Foo M F Rahman | 2010 | IEEE Transactions on Industry Electronics2010，57，11： | 1 |
| 4 | Rotor position and speed estimation of a variable structure direct-torque-controlled ipm synchronous motor drive at very low speeds including standstill显示文摘 | SAYEEF Saad FOO Gilbert RAHMAN M F | 2010 | IEEE Transactions on Industrial Electronics2010，57，11： | 1 |
| 5 | Utilization of guava seeds as a source of activated carbon for removal of Methylene Blue from aqueous solution显示文摘 | Rahman I A Saad B 2003 | 2003 | Malaysian Journal of Chemistry2003，5，1： | 1 |
| 6 | Spatial distribution, source apportionment, and associated risks of trace metals (As, Pb, Cr, Cd, and Hg) from a subtropical river, Gomti, Bangladesh显示文摘Sediment samples from the Gomti River basin were investigated to determine and evaluate trace metal concentrations,their biological effect,and potential ecological and human health risks for adults and children.The mean concentrations of trace metals were organized in the descending order of mercury(Hg)(0.08 mg/kg)>chromium(Cr)(0.06 mg/kg)>lead(Pb)(0.05 mg/kg)>arsenic(As)(0.02 mg/kg)>cadmium(Cd)(0.01 mg/kg).The current study illustrated that metals were attributed to the area from natural sources and different anthropogenic sources especially from industries.However,the concentration levels were lower than the sediment quality guidelines(SQGs)based on the effect-range classifications of threshold effect concentration(TEC)and probable effect concentration(PEC).Therefore,the concentration of the elements showed no adverse biological effects on aquatic organisms.The evaluated potential ecological risk index also revealed the low toxicity to the aquatic environment.Moreover,the applied sediment quality indices,geo-accumulation index(Igeo),contamination factor(CF),and contamination severity index(CSI)suggested that the contamination levels of the elements were in the acceptable range,and the contamination had not notably impacted on the sediment quality.The risk index(HI)concerning age groups was significantly less than the threshold limit of 1 indicating that the contamination had no non-carcinogenic risk effect.The total carcinogenic risk(TCR)was less than a risk value of 1×10^(4).Hence,the current study suggests that immediate remediation is not required due to an absence of alarming conditions in the study area.Proper monitoring of the attribution of the metal elements should be done for the betterment of human and environmental health。 | Abu Sayeed Shafiuddin Ahmed Mohammad Belal Hossain Saad Mohammad Omar Faruque Babu Moshiur Rahman Jun Sun Mohammad Shafiqul Islam Sarker | 2022 | International Journal of Sediment Research2022，37，1： | 1 |
| 7 | Adsorption characteristics of malachite green on activated carbon derived from rice husks produced by chemical-thermal process显示文摘 | Rahman I A Saad B | 2005 | Bioresource Technology2005，，96： | 1 |
| 8 | Rotor position and speed estimation of a variable structure direct-torque-controlled ipm synchronous motor drive at very low speeds including standstill 显示文摘 | SAYEEF Saad FOO Gilbert RAHMAN M F | 2010 | IEEE Transactions on Industrial Electronics2010，57，11： | 1 |
| 9 | Adsorption characteristics of malachite green on activated carbon derived from rice husks produced by chemical-thermal process 显示文摘 | Rahman I A Saad B Shaidan S | 2005 | Bioresource Technology2005，96，： | 1 |
| 10 | Adsorption characteristics of malachite green on activated carbon derived from rice husks produced by chemical-thermal process显示文摘 | Rahman I A Saad B Shaidan S | 2005 | Bioresource Technology2005，96，： | 1 |
| 11 | Estimation of Genetic Divergence and Character Association Studies in Local and Exotic Diversity Panels of Soybean(Glycine max L.)Genotypes显示文摘The availability of favorable genetic diversity is a thriving vitality for the success of a breeding program.It provides a firm basis of selecting superior breeding lines for the development of high yielding crop genotypes.In this context,present investigation aimed to generate information on genetic divergence and character association in a diversity panel of 123 local and exotic soybean genotypes.Analysis of variance revealed significant response of the evaluated genotypes based on studied attributes.It depicted the probability of selecting desirable soybean genotypes by focusing on character association studies and genetic diversity analysis.Correlation analysis revealed that seed yield per plant showed high positive correlation with 100-seed weight followed by pods per plant and plant height.Furthermore,path coefficient analysis exposed that pods per plant had maximum direct contribution in seed yield per plant followed by 100-seed weight,days to flowering and SPAD measurement.Genotype named“G-10”showed maximum yield per plant followed by 24607,G-52,24593,Arisoy,24566,17426,A-3127,24570 and 24567.Genetic diversity analysis grouped the evaluated germplasm into 17 clusters.All clusters showed zero intra-cluster variability;while inter-cluster divergence ranged from 9.00 to 91.11.Cluster V showed maximum inter-cluster distance with cluster XII followed by that of between V and VIII.Moreover,cluster IV with superior genotypes(G-10,24607,24593 and 24566),VI(17426 and 24567),XIII(24570)and X(Arisoy and G-52)showed above mean values for most of the studied characters.Overall,the results of hybridization between the superior genotypes of these cluster pairs might be useful for soybean breeding with improving agronomic traits and adaptability. | Syed Ali Zafar Muhammad Aslam Haroon Zaman Khan Sehrish Sarwar Rao Saad Rehman Mariam Hassan Ramala Masood Ahmad Rafaqat AGill Basharat Ali Ibrahim Al-Ashkar Abdullah Ibrahim Md Atikur Rahman Ayman El Sabagh | 2023 | Phyton-International Journal of Experimental Botany2023，92，6： | 0 |
| 12 | Paraneoplastic syndromes in cholangiocarcinoma显示文摘Paraneoplastic syndromes are the symptoms or signs which result from damage to tissues that are distant from the site of malignancy,due to complex interactions between the body’s immune system and malignant neoplasm.Cholangiocarcinoma(CCA)is an aggressive epithelial malignancy of hepatobiliary tree and it is found to be associated with various paraneoplastic syndromes.These syndromes can present as dermatological,neurological,renal,hematological,or multi-systemic manifestations.Clinical suspicion and timely recognition of these syndromes can lead to early diagnosis of covert malignancies like CCA.The management plan remains the removal of the underlying cause which in this case is CCA. | Saad Ur Rahman Muhammad Khawar Sana Zabreen Tahir Aamir Ali Pir Ahmad Shah | 2020 | World Journal of Hepatology2020，12，11： | 0 |
| 13 | Impedance learning adaptive super-twisting control of a robotic exoskeleton for physical human-robot interaction显示文摘This study addresses two issues about the interaction of the upper limb rehabilitation robot with individuals who have disabilities.The first step is to estimate the human's target position(also known as TPH).The second step is to develop a robust adaptive impedance control mechanism.A novel Non-singular Terminal Sliding Mode Control combined with an adaptive super-twisting controller is being developed to achieve this goal.This combination's purpose is to provide high reliability,continuous performance tracking of the system's trajectories.The proposed adaptive control strategy reduces matched dynamic uncertainty while also lowering chattering,which is the sliding mode's most glaring issue.The proposed TPH is coupled with adaptive impedance control with the use of a Radial Basis Function Neural Network,which allows a robotic exoskeleton to simply track the desired impedance model.To validate the approach in real-time,an exoskeleton robot was deployed in controlled experimental circumstances.A comparison study has been set up to show how the adaptive impedance approach proposed is better than other traditional controllers. | Brahim Brahmi Mohammad Habibur Rahman Maarouf Saad | 2023 | IET Cyber-Systems and Robotics2023，5，1： | 0 |
| 14 | Fast Intra Mode Selection in HEVC Using Statistical Model显示文摘Comprehension algorithms like High Efficiency Video Coding(HEVC)facilitates fast and efficient handling of multimedia contents.Such algorithms involve various computation modules that help to reduce the size of content but preserve the same subjective viewing quality.However,the brute-force behavior of HEVC is the biggest hurdle in the communication of multimedia content.Therefore,a novel method will be presented here to accelerate the encoding process of HEVC by making early intra mode decisions for the block.Normally,the HEVC applies 35 intra modes to every block of the frame and selects the best among them based on the RD-cost(rate-distortion).Firstly,the proposed work utilizes neighboring blocks to extract available information for the current block.Then this information is converted to the probability that tells which intra mode might be best in the current situation.The proposed model has a strong foundation as it is based on the probability rule-2 which says that the sum of probabilities of all outcomes should be 1.Moreover,it is also based on optimal stopping theory(OST).Therefore,the proposed model performs better than many existing OST and classical secretary-basedmodels.The proposed algorithms expedited the encoding process by 30.22%of the HEVC with 1.35%Bjontegaard Delta Bit Rate(BD-BR). | Junaid Tariq Ayman Alfalou Amir Ijaz Hashim Ali Imran Ashraf Hameedur Rahman Ammar Armghan Inzamam Mashood Saad Rehman | 2022 | Computers, Materials & Continua2022，，2： | 0 |
| 15 | Optoelectronic properties of SnO2 thin films sprayed at different deposition times显示文摘This article presents the elaboration of tin oxide(SnO_2) thin films on glass substrates by using a home-made spray pyrolysis system. Effects of film thickness on the structural, optical, and electrical film properties are investigated. The films are characterized by several techniques such as x-ray diffraction(XRD), atomic force microscopy(AFM), ultravioletvisible(UV–Vis) transmission, and four-probe point measurements, and the results suggest that the prepared films are uniform and well adherent to the substrates. X-ray diffraction(XRD) patterns show that SnO_2 film is of polycrystal with cassiterite tetragonal crystal structure and a preferential orientation along the(110) plane. The calculated grain sizes are in a range from 32.93 nm to 56.88 nm. Optical transmittance spectra of the films show that their high transparency average transmittances are greater than 65% in the visible region. The optical gaps of SnO_2 thin films are found to be in a range of 3.64 e V–3.94 e V. Figures of merit for SnO_2 thin films reveal that their maximum value is about 1.15 × 10-4-1?atλ = 550 nm. Moreover, the measured electrical resistivity at room temperature is on the order of 10-2?·cm. | Allag Abdelkrim Saad Rahmane Ouahab Abdelouahab Attouche Hafida Kouidri Nabila | 2016 | Chinese Physics B2016，25，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员