COMSATS Institute of Information Technology
Islamabad, Pakistan

COMSATS Institute of Information Technology, also known by its acronym CIIT, is a public research university in Pakistan. It is a multi-campus institute with its headquarters located in the urban area of Islamabad. It is ranked among the top 5 universities of Pakistan as of the latest ranking released by the Higher Education Commission of Pakistan. From its day of creation to this day, the university has managed to create 7 ISO 9001:2008 certified campuses throughout the nation. Additional plans are underway to create an overseas campus in the Gulf. Wikipedia.

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COMSATS Institute of Information Technology | Date: 2017-01-09

A method of synthesizing catalyst self-doped ZnS nanostructures including preparing a silicon substrate by vacuum depositing a metal catalyst nanostructure on an ultrathin silicon oxide layer, doping a zinc sulfide (ZnS) nanostructure with a catalyst of the metal catalyst nanostructure including at least one of gold (Au), manganese (Mn), and tin (Sn), and modulating ZnS intrinsic defects by the concentration of the catalyst and the size of the ZnS and metal catalyst nanostructures, in which the catalyst is dissolved in a nanowire of the ZnS nanostructure during growth, the concentration of the catalyst in the nanowire is dependent on the size of the catalyst, and the doping is tuned by growth conditions.

COMSATS Institute of Information Technology and Government College University at Faisalabad | Date: 2016-08-22

A method of synthesizing a resin including mixing a first solution including a melamine compound with a second solution including glutaraldehyde to form a third solution, heating the third solution to 35 C. to 90 C. in at a pH above 7 for 5 to 70 minutes, and cooling the third solution to room temperature.

Murtaza G.,COMSATS Institute of Information Technology
Acta Poloniae Pharmaceutica - Drug Research | Year: 2012

Fairly soluble drugs in gastrointestinal (GI) media exhibit complete oral absorption, and thus good bioavailability. About 40% of drugs are not soluble in water in practice and therefore are slowly absorbed, which results in insufficient and uneven bioavailability and GI toxicity. Thus, most exigent phase of drug development practice particularly for oral dosage forms is the enhancement of drug solubility and thereby its oral bioavailability. Solubility, an important factor to achieve desired plasma level of drug for pharmacological response, is the phenomenon of dissolution of solid in liquid phase resulting in a homogenous system. This review describes various traditional and novel methodologies proposed for solubility enhancement of simvastatin, and ultimately improvement in its bioavailability. For simvastatin, solubility is a crucial rate limiting factor to achieve its desired level in systemic circulation for pharmacological response. Thus, problematic solubility of simvastatin is a main challenge for dosage form developing researchers. Various procedures, illustrated in this review, have been successfully employed to improve the simvastatin solubility for its bioavailability enhancement; however, successful improvement essentially depends on the assortment of technique. Among all the solubility enhancement techniques, solid dispersion method, in terms of ease and efficiency is most promising and routinely employed technique to resolve the solubility problems of simvastatin.

Ali M.I.,COMSATS Institute of Information Technology
Applied Soft Computing Journal | Year: 2012

The basic aim of this paper is to discuss the idea of reduction of parameters in case of soft sets. It is studied that there is an approximation space of Pawlak associated with a soft set. A very simple technique is developed here to materialize the notion reduction of parameters. © 2012 Elsevier B.V. All rights reserved.

Raja M.A.Z.,COMSATS Institute of Information Technology
Applied Soft Computing Journal | Year: 2014

In this study, stochastic computational techniques are developed for the solution of boundary value problems (BVPs) of second order Pantograph functional differential equation (PFDE) using artificial neural networks(ANNs), simulated annealing (SA), pattern search (PS), genetic algorithms (GAs), active-set algorithm (ASA) and their hybrid combinations. The strength of ANNs is exploited to construct a model for PFDE by defining as unsupervised error to approximate the solution. The accuracy of the model is subjected to find the appropriate design parameters of the networks. These optimal weights of the networks are trained using SA, PS and GAs, used as a tool for viable global search, hybridized with ASA for rapid local convergence. The designed schemes are evaluated by solving a numbers of BVPs for the PFDE and comparing with standard results. The reliability and effectiveness of the proposed solvers are investigated through Monte-Carlo simulations and their statistical analysis. © 2014 Elsevier B.V. All rights reserved.

COMSATS Institute of Information Technology | Date: 2013-09-30

Exemplary embodiments of the present invention relate to benzoxazines having various N-protecting groups. An R_(1 )functional group is at least one selected from the group consisting of H and a halogen, an R_(2 )functional group is at least one selected from the group consisting of H, an amide, or a carbamate, and a Z functional group is at least one selected from the group consisting of a phenyl, substituted phenyl group, methyl, and t-butyl group. The exemplary embodiments provide compounds with benzoxazines having various cleavable protecting groups such as amides and carbamates.

COMSATS Institute of Information Technology | Date: 2015-11-04

An exemplary embodiment provides a method for extracting hydroxyapatite. The method includes washing fish scales with water, drying the washed fish scales, grinding the washed fish scales, mixing the ground fish scales with an ionic liquid, and centrifuging the mixture of the ground fish scales and the ionic liquid to collect a hydroxyapatite powder as a precipitate.

COMSATS Institute of Information Technology | Date: 2014-11-09

A system and method for protection against loss of communication of a mobile node crossing a black spot region is disclosed. The system to prevent loss of communication with the mobile node consists of a mobile node, RF coverage map generator, black spot predictor, and a vertical handover process. The mobile node can experience uninterrupted communication across black spots. This is achieved by executing vertical handover before entering a black spot region, which is anticipated by using RF coverage maps and mobility pattern of the mobile node.

COMSATS Institute of Information Technology | Date: 2015-09-03

A laser system including a laser cavity, a gain medium disposed in the laser cavity, a pump configured to excite an atom of the gain medium to an excited state, an optical device configured to couple a ground state of the atom of the gain medium to the excited state by applying an optical field to the gain medium, and a microwave device configured to couple the ground state of the atom of the gain medium to a different ground state by applying a microwave field to the gain medium.

COMSATS Institute of Information Technology | Date: 2013-12-05

A method and device for heart murmur extraction and classification is disclosed. Data corresponding to a heart sound/signal is acquired from a patient through a data acquirer. The heart sound data is processed to isolate systole and diastole periods. Features to discriminate between the defects types associated with different heart murmurs are extracted, and the heart murmurs are detected and identified based on the extracted features using a fuzzy controller.

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