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Performance assessment of an inline horizontal swirl tube cyclone for gas-liquid separation at high pressure

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Journal of Natural Gas Chemistry 2011年第6期20卷 565-567页

作者： Nurhayati Mellon Azmi M. shariff Department of Chemical Engineering Universiti Teknologi PETRONAS Bandar Sri Iskandar Perak 31750 Malaysia

The application of swirl tube cyclone for gas-liquid separation is attractive due to its small size and weight. However, very scarce information on the performance of the swirl tube cyclone especially at high operating pressure emulating actual field condition was published in journals. Performance assessment was usually done at a low operating pressure using either air-water, air-fine particle mixtures or dense gas such as SF6 . This paper fills the existing gaps and reports the initial findings on the performance assessment of a horizontal swirl tube cyclone for gas-liquid separation operating at a flow rate of 5 MMSCFD at 40-60 bar operating pressure.

关键词： compact separator cyclone swirl tube natural gas separation

Nonlinear elastic constitutive relations of residually stressed composites with stiff curved fibres

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Applied Mathematics and Mechanics(English Edition) 2022年第10期43卷 1515-1530页

作者： M.H.B.M.shariff J.Merodio R.Bustamante Department of Mathematics Khalifa University of Science and TechnologyAbu Dhabi127788United Arab Emirates Departamento de Matemática Aplicada a las TIC ETS de Ingeniería de Sistemas InformaticosUniversidad Politecnica de MadridMadrid28031Spain Departamento de Ingeniería Mecánica Universidad de ChileBeauchef 851Santiago CentroSantiago8370448Chile

Mechanical models of residually stressed fibre-reinforced solids,which do not resist bending,have been developed in the ***,in some residually stressed fibre-reinforced elastic solids,resistance to fibre bending is significant,and the mechanical behavior of such solids should be ***,in this paper,we model the mechanical aspect of residually stressed elastic solids with bending stiffness due to fibre curvature,which up to the authors’knowledge has not been mechanically modeled in the *** proposed constitutive equation involves a nonsymmetric stress and a couple-stress *** invariants are used in the constitutive equation,where each spectral invariant has an intelligible physical meaning,and hence they are useful in experiment and analysis.A prototype strain energy function is ***,we use this prototype to give results for some cylindrical boundary value problems.

关键词： fibre-reinforced solid residual stress bending stiffness spectral invariant second gradient finite elasticity

Preparation of fluconazole buccal tablet and influence of formulation expedients on its properties

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药学学报 2011年第4期46卷 460-465页

作者： MOHAMED Saifulla P MUZZAMMIL shariff PRAMOD Kumar TM Department of Pharmaceutics College of PharmacyJSS University

The aim of present study was to prepare buccal tablets of fluconazole for oral *** dosage forms were designed to release the drug above the minimum inhibitory concentration for prolonged period of time so as to reduce the frequency of administration and to overcome the side effects of systemic *** buccal tablets were prepared by using Carbopol 71G and Noveon AA-1 by direct compression *** stalline cellulose was used as the filler and its effect was also *** prepared dosage forms were evaluated for physicochemical properties,in vitro release studies and mucoadhesive properties using sheep buccal mucosa as a model *** containing 50% of polymers(Carbopol & Noveon) were found to be the best with moderate swelling along with favorable bioadhesion force,residence time and in vitro drug *** in vitro drug release studies revealed that drug released for 8 h,which in turn may reduce dosing frequency and improved patient compliance in oral candidiasis patients.

关键词： adhesion Carbopol 71G fluconazole mucoadhesive tablet Noveon AA-1 oral candidiasis

Removal of high concentration CO_2 from natural gas at elevated pressure via absorption process in packed column

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Journal of Natural Gas Chemistry 2012年第1期21卷 7-10页

作者： L.S.Tan K.K.Lau M.A.Bustam A.M.shariff CO_(2)Management MOR Universiti Teknologi PETRONAS31750 TronohPerakMalaysia

Carbon dioxide （CO2） removal is an essential step in natural gas （NG） processing to provide high quality gas stream products and minimize operational difficulties. This preliminary study alms to investigate the removal of CO2 at high concentration level from the mixture of CO2-NG gas stream at elevated pressure via absorption process. This is to explore the possibility of exploring high CO2 content natural gas reserves by treatment at offshore platform. A mixed amine solvent, Stonvent-II, was used for the absorption of approximately 75 vol% CO2 in CO2-NG stream at a pressure of 10 barg. The initial solvent temperature was varied in order to study the impact of initial temperature on the absorption performance. Preliminary study at temperatures of 35 ℃ and 45 ℃ indicates that Stonvent-II was able to perform almost 100% removal of CO2 under both conditions. However, the CO2 absorption effect took place faster when the initial liquid temperature was lower. This is because when the initial liquid temperature is high, the temperature increase in the packing bed caused by the reaction heat is high which impacts the efficiency of absorption negatively.

关键词： CO2 capture absorption packed column amine mild pressures

Experimental studies and artificial neural network modeling of surface tension of aqueous sodium L-prolinate solutions and piperazine blends

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Chinese Journal of Chemical Engineering 2019年第8期27卷 1904-1911页

作者： Muhammad Shuaib Shaikh A.M.shariff M.A.Bustam Sahil Garg Khadija Qureshi Pervez Hameed Shaikh Inamullah Bhatti Department of Chemical Engineering Mehran University of Engineering&Technology JamshoroSindh 76062Pakistan CO2 Research Centre(CO2RES) Universiti Teknologi PETRONASBandar Seri Iskandar 32610PerakMalaysia School of Chemical Engineering The University of QueenslandSt Lucia 4072Australia Office of Research Innovation and Commercialization(ORIC) Mehran University of Engineering&Technology JamshoroSindh 76062Pakistan

The surface tension study is very crucial for the design of CO2 gas absorption contacting equipment. The significance of the surface tension has been increasing due to its consideration in various technological fields. This property influences the mass transfer and hydrodynamics of gas absorption systems, mainly multiphase systems, in which the interface between gas and liquid exists. Therefore, in this study, surface tension of aqueous solutions of sodium L-prolinate(SP) and piperazine(PZ) blends were measured at ten different temperatures from(298.15 to 343.15) K. The SP mass fractions were 0.10, 0.20, and 0.30;while the mass fractions of PZ were 0.02 and 0.05. The experimental results showed that the surface tension increase with increasing the mass fractions of SP and PZ in aqueous blends, and decrease linearly with rising temperature. The experimental data of surface tension were correlated by two empirical correlations as a function of temperature and mass fractions for estimating the predicted data using the optimized correlation coefficients. Moreover, the modeling of surface tension data was carried out using Artificial Neural Network(ANN) approach. The results obtianed from ANN modeling were compared with applied empirical correlation. It was found that the ANN approach outperformed the empirical correlation used in this study. Besides, a quantitative analysis of variation(ANOVA) was performed in order to determine the significance of data. The surface tension of aqueous SP and SP + PZ was also compared with various conventional solvents.

关键词： Surface tension L-Prolinate Piperazine Correlation Prediction Neural network

A review on 3D terrain visualization of GIS data:techniques and software

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Geo-Spatial Information Science 2012年第2期15卷 105-115页

作者： Che Mat RUZINOOR Abdul Rashid Mohamed shariff Biswajeet PRADHAN Mahmud RODZI AHMAD Mohd Shafry Mohd RAHIM Geospatial Information Science Research Centre(GISRC) Faculty of EngineeringUniversiti Putra Malaysia43400 UPM SerdangSelangorMalaysia College of Arts and Sciences Universiti Utara Malaysia06010 UUM SintokKedahMalaysia Department of Civil Engineering Faculty of EngineeringUniversiti Putra Malaysia43400 UPM SerdangSelangorMalaysia Faculty of Computer Science&Information Systems Universiti Teknologi Malaysia81310 UTM SkudaiJohorMalaysia

3D terrain visualization of geographic information systems(GIS)data has become an important issue in recent *** is due to the emergence of new geo-browsers such as Google Earth,widely popular among *** availability of 3D representation tools has increased the demand for 3D terrain *** aim of this paper is to review the literature related to the 3D terrain visualization of GIS data from the first map produced until the online mapping *** reviews are divided into four different sections:manual visualization of 3D terrain,automated visualization of 3D terrain,online visualization of 3D terrain,and software for visualizing 3D ***,the paper compares between the different types of systems developed by various authors based on the capabilities and the limitations of the *** of the techniques have their own strengths and limitations which solve the problem in 3D terrain ***,the research on improving 3D terrain visualization is still *** is due to the popularity of online environments and mobile devices that render 3D *** review paper will help interested users understand the current state of 3D terrain visualization of GIS data in a better way.

关键词： terrain visualization geographic information systems(GIS) 3D terrain visualization online 3D terrain visualization remote sensing Malaysia

Laparoscopic retrieval of two intragastric spoons at least seven years after ingestion

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Laparoscopic, Endoscopic and Robotic Surgery 2019年第3期2卷 77-79页

作者： Adeel Ahmed Shamim Muhammad Maaz Zuberi Amir Hafeez shariff Department of General Surgery Howard University HospitalWashington DC20060USA Department of General Surgery Aga Khan University HospitalKarachi74800Pakistan

Foreign body ingestion is a commonly encountered *** majority of foreign bodies pass in stool spontaneously within one week or are managed endoscopically within the first 24e48 *** guidelines are available for management of chronically retained foreign bodies at present.A unique case is presented of two chronically retained teaspoons in the stomach that failed endoscopic retrieval and required laparoscopic *** operatively,the patient did well with no complications.A large foreign body that is not amenable to endoscopic intervention will benefit from *** expertise is available,laparoscopic intervention is a safe and feasible option to remove large foreign bodies from the stomach that is not amenable to endoscopic retrieval.

关键词： Endoscopy Large foreign body ingestion Laparoscopic retrieval

Multi-Order Intermittent Chaotic Synchronization of Closed Phase Locked Loop

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International Journal of Modern Nonlinear Theory and Application 2018年第2期7卷 48-55页

作者： Samir M. shariff Electrical Engineering Department College of Engineering Taibah University Medinah KSA

For the model of a Closed Phase Locked Loop (CPLL) communication System consists of both the transmission and receiver ends. This model is considered to be in a multi-order intermittent chaotic state. The chaotic signals are then synchronized along side with our system. This chaotic synchronization will be demonstrated and furthermore, a modulation will be formed to examine the system if it will perfectly reconstruct or not. Finally we will demonstrate the synchronization conditions of the system.

关键词： Chaotic Synchronization Chaotic Signal Communication Systems Closed Phase Locked Loop System Multi-Order Model

A Comprehensive Review on Heat Transfer Design Parameters in MEMS through Experimentations and Numerical Modeling

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Open Journal of Microphysics 2018年第1期8卷 1-6页

作者： Yasir M. shariff Mechanical Engineering Department College of Engineering Taibah University Madina KSA

Micro electro mechanical systems are studied in this paper along to comparing the design, fabrication, and operation of such devices especially in the electronic industry. The advancements of such systems are important as scale reduction is becoming more economical and also in heat dissipation efficiencies. Furthermore, the fabrication techniques are becoming more of a challenge in today’s industrial market. In this paper we will introduce a comparative study of experimental research in the micro scale heat exchanger with varieties of industrial application primarily cooling integrated circuits. Significant effect in the process of cooling electronic devices has showed experimentally that scale variations impact into this improvement. Numerical studies have been a leading technique in the development of thermal systems especially at the micro or small scales which helps the industry to cut cost and provide innovative products at high efficiencies. There are so many approaches to numerical analysis and research, where the availability of ready to use software and data acquisition modules is variant. Material selection is also a variable in the efficiency and operations of these micro channel thermal system and heat exchangers.

关键词： Mems Heat Transfer Design Parameters