Papers by Rana Mubashir ali
2020 International Russian Automation Conference (RusAutoCon)
In remote areas the sun is a cheap source of electricity because instead of hydraulic generators ... more In remote areas the sun is a cheap source of electricity because instead of hydraulic generators it uses solar cells to produce electricity. But the output of solar cells depends on the intensity of sunlight and the angle of incidence. It means to get maximum efficiency; the solar panels must remain in front of the sun during the whole day. But due to the rotation of the earth, those panels can't maintain their position always in front of the sun. This problem results in a decrease of their efficiency. So to get a constant output, an automated system is to be required which should be capable to constantly rotate the solar panel. Automatic sun tracking system with photo voltaic plate to improve the efficiency of solar power generation was helpful to solve the problem, mentioned above. It is completely automatic and keeps the panel in front of sun until that is visible. The unique feature of this system is that instead of taking the earth as its reference, it takes the sun as a guiding source. Its active sensors constantly monitor the sunlight and rotate the panel towards the direction where the intensity of sunlight is at maximum with the help of DC motor.
Cureus, 2021
Serum sodium assay is a commonly performed laboratory test in a clinical setting and the results ... more Serum sodium assay is a commonly performed laboratory test in a clinical setting and the results are taken for granted without being aware of the actual methods involved. In conditions like hyperlipidemia and hyperproteinemia, excessive lipids in serum dilute the water component of the serum. Since sodium is dissolved only in the aqueous phase of serum, the sodium content per unit volume of plasma is reduced. Currently, most of the laboratories use the indirect ion-selective electrode method (ISE), where the plasma sample is diluted before the measurement. Indirect ISE may not give accurate results in conditions with higher serum lipid and protein levels. Overcorrection of the serum sodium levels in pseudohyponatremia may cause serious complications. We report a case of a 26-year-old Asian male with a past medical history of chronic pancreatitis, familial hypertriglyceridemia, and fatty liver who presented to the emergency department with acute pancreatitis. Initially, the patient was found to have hyponatremia and he was started on hypertonic saline for one day. Later the patient's condition deteriorated and then it was determined that serum sodium results were a measurement artifact since the patient had extremely high levels of triglycerides. After realizing that it was a measurement artifact, the saline infusion was stopped and he was started on desmopressin. However, the patient deteriorated neurologically and expired later. As this patient had normal sodium levels, administration of hypertonic saline led to a fatal outcome.
Cureus, 2020
Purpose. e purpose of this study was to evaluate the feasibility of detecting pulmonary emboli u... more Purpose. e purpose of this study was to evaluate the feasibility of detecting pulmonary emboli utilizing noncontrast magnetic resonance imaging techniques in patients with known pulmonary embolism. Materials and Methods. Eleven patients were enrolled in a study to evaluate right ventricular function by cardiac MRI in patients diagnosed with acute pulmonary embolism on CT pulmonary angiogram. Cardiac MRI was performed as soon as possible following pulmonary embolism detection. Two independent observers reviewed the precontrast portion of each MRI, scoring right, le, and lobar arteries as positive or negative for PE. e CTs were reviewed and interpreted in the same manner. Results. MRI was obtained on average of 40 hours aer the CT. Forty-eight vessels were affected by PE on CT, 69% of which were identi�ed on MRI. All eight pulmonary emboli located in the right or le pulmonary arteries were detected on MRI. Of the 15 pulmonary emboli that were not detected on MRI, 7 were subsegmental, 6 were segmental, and 2 were located in a branch not included in the MRI �eld of view. Conclusions. Most pulmonary emboli detected on CT were identi�ed on noncontrast MRI, even though our MRI protocol was not optimized for pulmonary artery visualization.
Cureus, 2019
Cryptogenic organizing pneumonia (COP), also known as idiopathic bronchiolitis obliterans organiz... more Cryptogenic organizing pneumonia (COP), also known as idiopathic bronchiolitis obliterans organizing pneumonia (BOOP), is a rare inflammatory condition. It often presents as sequelae of existing chronic inflammatory diseases such as rheumatoid arthritis, systemic lupus erythematosus, and various connective tissue conditions. This case describes a 28-year-old African American female who presented with a complex clinical picture involving chronic inflammatory processes and the pulmonary system. The initial evaluation suggested pneumonia to be the underlying cause of respiratory symptoms; however, ultimately, a diagnosis of BOOP with dermatomyositis was made.
Objective: To assess the effectiveness and safety of interventions of reducing pain at neonatal c... more Objective: To assess the effectiveness and safety of interventions of reducing pain at neonatal circumcision. Study Design: Quasi-experimental design Place and Duration of Study: Departments of Pediatric Surgery and Plastic Surgery, Allied Hospital, Madina Teaching Hospital, Faisal Hospital, Abdullah Medical Complex, Jail Road, Faisalabad from June 2005 to July 2010. Methodology: Neonates presenting for circumcision during the first month of life were included in the study. A total of 102 neonates were enrolled in this study. Plastibell was used in all cases. They were divided into two groups. Group A(n=51) received dorsal penile nerve block(DPNB)& ring block by injecting lignocaine along with sucrose solution 25%. Group B(n=51) received 20 ml of 25% sucrose solution only during procedure. The pain was assessed by measuring physiological changes e.g.pulse rate, oxygen saturation and crying time. Results: There were significant differences among the groups A and B with respect to phy...
Chemical Engineering Journal, 2015
We report on adsorption of aqueous Cu 2+ using poly N-phenylglycine (PPG) nanofibers (NFs) prepar... more We report on adsorption of aqueous Cu 2+ using poly N-phenylglycine (PPG) nanofibers (NFs) prepared by radical polymerization process. The carboxylic acid groups of pristine PPG NFs were deprotonated to form carboxylate groups, resulting in hydrogen-dedoped PPG NFs. The Cu 2+-adsorption capability of PPG NFs was markedly increased after the deprotonation, presumably due to high ionic attraction feature of carboxylate in dedoped PPG. We further investigated the pH-dependent adsorption capability of PPG NFs and found much higher Cu 2+ adsorption capacity under high pH conditions, owing to spontaneous deprotonation by the basic solution. X-ray photoemission confirmed the adsorption of Cu 2+ on PPG NFs, and Fourier transform infrared spectroscopic analyses confirmed the reduced density of carboxylic acid by deprotonation. The ability of pristine and dedoped PPG NFs to capture aqueous Cu 2+ is discussed. Our method to improve the adsorption capability using surface modification could be readily applied to many other polymeric or organic nanostructures for metal removal.
Lecture Notes in Computer Science, 2005
The semantic web has created various exciting opportunities to explore. Here we present a nature ... more The semantic web has created various exciting opportunities to explore. Here we present a nature inspired solution to one such opportunity; that of semantic queries for information retrieval. We take our inspiration from the human immune system and develop an analogy between antibodies and queries. Successful antibodies are those that are activated by an infection. These antibodies are stimulated to clone, but imperfectly, giving rise to a multitude of similar antibodies that are better suited to tackle the infection. Analogously, queries producing relevant results can be cloned to give rise to various similar queries, each of which may be an improvement on the original query. The semantic web, being concept based, has a set of rules for creating expressive yet standardised queries with clear semantics guiding their modification. This paper discusses the implementation and evaluation of such an immune based information retrieval technique for the semantic web. Two query mutation operators; RandomMutationOperator and ConstrainedMutationOperator are proposed and compared in terms of their precision, recall and convergence. We have found the presented approach to be viable, and we discuss the potential for further improvements.
2007 International Conference on Information and Emerging Technologies, 2007
Abstract Billing automation systems for public utilities (eg electricity, gas and water) have bee... more Abstract Billing automation systems for public utilities (eg electricity, gas and water) have been widely studied and implemented in developed countries across the world. But in Pakistan, this technology is still on its way to be implemented for domestic as well as for industrial ...
Perceived organizational support has been considered attention as main variable of research for l... more Perceived organizational support has been considered attention as main variable of research for long period. A number of studies have conducted on this variable. Due to its importance, latest researches are still considered as key variable. There is lack of researches about perceived organizational support in developing country like Pakistan. The main focus of this study is to explore the
2013 3rd IEEE International Conference on Computer, Control and Communication (IC4), 2013
ABSTRACT A compact printed monopole antenna with tunable ground for adjustment of bandwidth is pr... more ABSTRACT A compact printed monopole antenna with tunable ground for adjustment of bandwidth is proposed. The achieved bandwidth is regulated by the length of ground plane. Presented antenna has five slits in its rectangular patch controlling the bandwidth and the frequency shifts. The simulated results are obtained using HFSS (High Frequency Structure Simulator). FR4 substrate of 30×24×1.6 mm3 is used for the fabrication. The measured results of prototype are acquired by network analyzer and anechoic chamber. The offered antenna is applicable for GSM (1800, 1900), UWB, UMTS (1900, 2100), Wi-Fi, WiMAX, Zig-bee, and Satellite Communication applications.
Journal of Coordination Chemistry, 2014
ABSTRACT In the present study, di- and triorganotin(IV) dithiocarbamates, (n-Bu2SnCl)2L (1), (Ph2... more ABSTRACT In the present study, di- and triorganotin(IV) dithiocarbamates, (n-Bu2SnCl)2L (1), (Ph2SnCl)2L (2), (Ph3Sn)2L (3), and (Bz3Sn)2L (4), have been synthesized, where L is 4,4-trimethylenedipiperidine-1-carbodithioate. The coordination mode of the ligand to Sn, structural confirmation and geometry assignment around Sn(IV), in solid and solution forms, were made using FT-IR, multinuclear NMR (1H and 13C), and X-ray single crystal analysis. The latter technique confirms anisobidentate mode of chelation of the ligand with Sn, in 1–4, with distorted trigonal bipyramidal or square pyramidal geometry. Complexes 1–4 present supramolecular structures mediated by different C…H and Cl…H intermolecular interactions. These complexes maintain five-coordination even in solution, except for 4. The antileishmanial activity of all complexes are well above the standard drug, especially (Bz3Sn)2L. The Docking studies suggest that high antileishmanial action of (Bz3Sn)2L is due to its lowest binding energy with enzyme trypanothione synthetase. The antileishmanial activity of the complexes is promising enough that they may be used for antileishmanial treatment after further investigations.
Lung India, 2012
Some strategies have been suggested previously for preventing chemoembolizations during TACE. [3]... more Some strategies have been suggested previously for preventing chemoembolizations during TACE. [3] Doxorubin is one of the most commonly used chemotherapeutic agents for a wide variety of neoplasms. Systemic doxorubicin has been shown to cause lung injury. [4] Diffuse lung injury by chemoembolization with doxorubicin has not been reported in the literature. Here, we report a case of acute diffuse lung injury after TACE of hepatic artery with doxorubicin. CASE REPORT A 55-year-old male with hepatocellular carcinoma (HCC) was admitted to the intensive care unit with severe dyspnea, tachypnea and dry cough, four days after he received transcatheter arterial chemoembolization (TACE) of LC beads loaded with doxorubicin of left hepatic artery. He denied having fever, chills, chest pain, palpitation, and paroxysmal nocturnal dyspnea. One year ago, he was
Journal of Atmospheric and Solar-Terrestrial Physics, 2012
Estimation of radio refractivity is critical in planning and design of radio links/systems for ac... more Estimation of radio refractivity is critical in planning and design of radio links/systems for achieving optimal performance. The objective of this work is to e.
International Journal of Exergy, 2007
A performance evaluation based on exergy analysis was proposed to evaluate the benefits of differ... more A performance evaluation based on exergy analysis was proposed to evaluate the benefits of different enhancement techniques for flow inside tubes. The present performance evaluation was developed based on the application of the principle of entropy generation. A semi-analytical model was developed to predict the entropy generation and the exergy destruction rates associated with both flow friction and heat transfer. This model was based on measurements and empirical correlations for both flow and heat transfer characteristics. The present performance evaluation was applied on flow through tubes enhanced with twisted-tapes inserts, spirally internal fins and conical turbulators for three different fluids. It was found that using specific types of enhancement techniques reduces the irreversibility owing to heat transfer across a finite temperature difference and in the same time increases that part of irreversibility resulting from the flow friction. Therefore, a thermodynamic optimum at a minimum exergy destruction rate can be achieved for different enhancement techniques and different flow conditions.
International Journal of Exergy, 2009
ABSTRACT The thermal performance of heat exchangers that are essential units in power plants can ... more ABSTRACT The thermal performance of heat exchangers that are essential units in power plants can be substantially improved by a number of augmentation techniques. The entropy generation and exergy destruction rate due to the flow friction and heat transfer across temperature differences were proposed numerically to evaluate the benefits of utilisation of these techniques. Enhanced tubes with either dimples or spiral corrugations that are isothermally heated were investigated. The combination of spirally corrugated tubes with twisted tape inserts was also presented. In general, dimpled and spirally corrugated tubes and the combination of spirally corrugated tubes with a twisted tape substantially increase the percentage of temperature raise ratio and decrease the percentage of exergy destruction rate relative to smooth tubes. Increasing both the additional heat transfer area due to dimpling, and ridge height of corrugation increases the percentage of temperature raise ratio and decreases the exergy destruction rate. Also, the combination of corrugated tubes with twisted tapes is attractive as an augmentation technique based on exergy analysis, especially at low twisted tape length to inner tube diameter ratio, and high ridge height of corrugation for high Reynolds number.
Flow Measurement and Instrumentation, 2012
Critical and normal depths are important parameters for computing gradually varied flow and for t... more Critical and normal depths are important parameters for computing gradually varied flow and for the design, operation, and maintenance of open channels. For many channel sections, the governing equations for critical and normal depths are implicit and no analytical solutions exist. Thus various approximate equations with various degrees of error have been developed for these sections. No explicit equations exist for critical and normal depths of the standard city-gate cross-sections for entire practical range of the water depth. City-gate sections are one of the commonly used crosssections for water conveyance tunnels. Standard city-gate cross-sections are also used for water conveyance in irrigation and drainage systems. This study proposes explicit equations for critical and normal depths of standard city-gate cross-sections. The proposed equations are simple and valid for entire practical range of the water depth and have maximum relative error less than 0.13% and thus should be useful tools for evaluation and design of the standard city-gate cross-sections.
Uploads
Papers by Rana Mubashir ali