oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Search Results: 1 - 10 of 276 matches for " Alhamra Parveen "
All listed articles are free for downloading (OA Articles)
Page 1 /276
Display every page Item
Synthesis, Structural and Physical Properties of Cu1–xZnxFe2O4 Ferrites  [PDF]
Shahida Akhter, Deba Prasad Paul, Md. Abdul Hakim, Dilip Kumar Saha, Md. Al-Mamun, Alhamra Parveen
Materials Sciences and Applications (MSA) , 2011, DOI: 10.4236/msa.2011.211223
Abstract: Zn substituted Cu-Zn ferrites with a composition Cu1-xZnxFe2O4 have been synthesized by standard double sintering ceramic method and characterized by X-ray diffraction. The single-phase cubic spinel structure of all the samples has been confirmed from X-ray diffraction analyses. The lattice constant is found to increase linearly with the manganese content obeying Vegard’s law. This increase in lattice parameter is explained in terms of the sizes of component ions. It is well known that density plays a key role in controlling the properties of polycrystalline ferrites. The X-ray and bulk densities of the Cu-Zn ferrite is significantly decreased whereas porosity increased with increasing Zn concentration, thereby giving an impression that zinc might be helping in the densification of the materials. SEM micrographs exhibit a decrease in grain size with increasing Zn content. The real part of initial permeability, μ′ increase with increasing Zn contents upto x = 0.5 after that it decreases with higher Zn content.
Identifying Reading Preferences of Secondary School Students  [PDF]
Irshad Hussain, Parveen Munshi
Creative Education (CE) , 2011, DOI: 10.4236/ce.2011.25062
Abstract: The present study was conducted with the main purpose of identifying reading preferences of secondary school students and their related issues. The study was conducted on a total of 387 secondary school students of academic session 2010-12 in District Bahawalpur of Pakistan. Qualitative and quantitative data were collected through questionnaire and interview schedule respectively by adopting survey method. The study concluded that secondary school students preferred to read books, magazines, poetry and other reading materials to get pleasure through edutainment, kill their leisure time during holidays and/ or at weekends and for their emotional gratification. The respondents preferred to read books on religion, literature, novels, magazines and story & romantic books. They were keen on reading newspaper, traveling story and scientific books, autobiographies and literature –poetry and drama. They faced problems in reading and setting their reading preferences like high costs of the books, context and circumstances, availability of books, time and their time management ability, examinations & academic workload, lack of guidance, personal interest, and their study circles or groups.
Integrated Approach of Universal Soil Loss Equation (USLE) and Geographical Information System (GIS) for Soil Loss Risk Assessment in Upper South Koel Basin, Jharkhand  [PDF]
Reshma Parveen, Uday Kumar
Journal of Geographic Information System (JGIS) , 2012, DOI: 10.4236/jgis.2012.46061
Abstract: Soil erosion is a growing problem especially in areas of agricultural activity where soil erosion not only leads to decreased agricultural productivity but also reduces water availability. Universal Soil Loss Equation (USLE) is the most popular empirically based model used globally for erosion prediction and control. Remote sensing and GIS techniques have become valuable tools specially when assessing erosion at larger scales due to the amount of data needed and the greater area coverage. The present study area is a part of Chotanagpur plateau with undulating topography, with a very high risk of soil erosion. In the present study an attempt has been made to assess the annual soil loss in Upper South Koel basin using Universal Soil Loss Equation (USLE) in GIS framework. Such information can be of immense help in identifying priority areas for implementation of erosion control measures. The soil erosion rate was determined as a function of land topography, soil texture, land use/land cover, rainfall erosivity, and crop management and practice in the watershed using the Universal Soil Loss Equation (for Indian conditions), remote sensing imagery, and GIS techniques. The rainfall erosivity R-factor of USLE was found as 546 MJ mm/ha/hr/yr and the soil erodibility K-factor varied from 0.23 - 0.37. Slopes in the catchment varied between 0% and 42% having LS factor values ranging from 0 - 21. The C factor was computed from NDVI (Normalized Difference Vegetative Index) values derived from Landsat-TM data. The P value was computed from existing cropping patterns in the catchment. The annual soil loss estimated in the watershed using USLE is 12.2 ton/ha/yr.


Effect of Special Finishes on the Functional Properties of Cotton Fabrics  [PDF]
Kawser Parveen Chowdhury
Journal of Textile Science and Technology (JTST) , 2018, DOI: 10.4236/jtst.2018.42003
Abstract: This study demonstrated that the changes in functional properties of both woven and knit cotton fabrics were determined to evaluate the performance of different special finishes. Here, 100% cotton fabrics were treated with different types of finishing chemicals at different formulations. To assess the performance of different finishes on fabric properties, GSM, bursting strength, tensile strength, dimensional stability, absorbency, crease recovery angle with ASTM and AATCC methods were done. The results showed that the functional properties of the finished cotton fabrics both woven and knit depend to a great extent on the type of finish.
Impact of Different Water Repellent Finishes on Cotton Double Jersey Fabrics  [PDF]
Kawser Parveen Chowdhury
Journal of Textile Science and Technology (JTST) , 2018, DOI: 10.4236/jtst.2018.43006
Abstract: This study demonstrated that the variation in physical and chemical performance on cotton double jersey knit fabrics was decided by the knit structure, water repellent chemicals types and their concentration. Here, two types of double jersey fabrics were treated with different types of water repellent chemicals at different formulations to evaluate the performance of water repellent finishes on knit fabrics properties. The levels of water repellency of the fabrics were assessed by AATCC 127 hydrostatic head test method and by ISO 4920:2012 spray rating test method. To evaluate the performance of water repellent finishes on knit fabric properties, GSM, bursting strength test according to ASTM (D 3786-87) method, air permeability, color fastness to wash, water, perspiration, chlorinated water and color fastness to rubbing with ISO method were done. The results showed that both physical and chemical properties of the finished cotton knits, depend to a great extent on knit structure, the water repellent finish type and concentration to obtain water repellent fabrics with desirable properties.
EPIDURAL ANALGESIA IN LABOUR
SHAHIDA PARVEEN
The Professional Medical Journal , 2006,
Abstract: Introduction: In modern obstetrics, alleviation of labour pains bysimple, safe and effective means presents a unique problem. Epidural analgesia has emerged as a popular andrelatively safe option in this context. It requires injection of local anaesthetic agent into epidural space, which iscommonly approached through lumber intervertebral space. Objective: Aim of study was to determine effect of epiduralanalgesia on progress of labour and mode of delivery, to find out its complications in labour and puerperium and toevaluate neonatal out come in terms of apgar score. Setting: Obstetrics and Gynaecology, Nishtar Hospital, Multan.Period: one year. Material and methods: Sample size: 50 patients. Results: Out of 50 patients, 4 (8%) were below20 years of age, 8 (16%) over 30 years of age and 17(34%) patients were 25-29 years of age. Highest percentage was21-24 years of age i.e. 21(42%) patients. 43 (86%) patients were primi-gravida, 2 (4%) patients had one spontaneousabortion and 5 (10%) patient were second gravida. Three (25%) patients (1-49 with 95% Cl) were induced for PIH withno evidence of coagulopathy and fetal compromise. Fifteen (30%) of patients (14-34 with 95% CI) required noaugmentation with oxytocin. In 29 (58%) of patients although duration less than 8 hours but labour was augmented withsyntocinon. In 2 (11% patients instrumental delivery was performed due to meconium stained liquor and persistentbradycardia. Highest percentage of patients 89% had instrumental delivery because of prolonged second stage.Conclusion: Epidural analgesia provides excellent pain relief in great majority of patients. Maternal fatigue and distresswith all of its ill effects on labour and puerperium is abolished.
CERVICAL RIPENING
Kausar Parveen
The Professional Medical Journal , 1998,
Abstract: OBJECTIVE: To determine the efficacy of PGE2 pessary in the cervical ripening and to study its effect onother parameters of labour and delivery. DESIGN: Prospective study. SETTING: Maternity Unit II NishtarHospital Multan. SUBJECT: A randomized double blind trail of PGE2 pessary was carried out in patientsadmitted for induction of labour. MEASUREMENT AND RESULT: We looked at the change in Bishopscoring, induction delivery interval, mode of delivery and fetal outcome. Fifty percent of the patients whoreceived prostin E2 pessary went into labour before planned amniotomy while only five percent of thepatients receiving placebo did so. No significant difference was found in mode of delivery and incidenceof fetal distress between the two groups. CONCLUSION: The shortened induction delivery intervalfollowing pre treatment with PGE2 (3 mg) pessary.
COMPARISON OF PREVIOUS REPORTS IN INDOOR PATIENTS-A POTENTIAL TOOL FOR INTERNAL QUALITY ASSURANCE IN CLINICAL BIOCHEMISTRY
Parveen Bansal
International Journal of Bioassays , 2012,
Abstract: Laboratory testing is an important and integral part of the decision-making process and strongly influences medical diagnosis and therapies. Normally the extraneous results in a clinical report raise a doubt towards the quality assurance program of a laboratory. This communication is intended to highlight the potential use of previous reports of indoor patient in an indoor hospital laboratory as a tool for quality assurance. In this study approximately 10% of the doubtful reports were picked up randomly and the results were compared with the earlier reports of the patient retrieved from database. The study revealed that there was a significant reduction of more than 80% in the test repeats resulting in decrease in expenses on repeat tests (80%).There was a significant average reduction of time and human resource investment, decrease in the instrument working hours and increased workflow efficiency due to reduction in the test repeats. Moreover there was an increase in the confidence level of consultant towards quality control program and authenticity of the reports.
Apply Different Techniques to Face Vehicular Ad-Hoc Network Challenges for Making Secure Systems
Parveen Kumar
International Journal of Computer Science and Management Studies , 2012,
Abstract: In this paper, the concept of VANET is discussed in detail.The different concepts used in VANET are explained with very good style. The applications of VANET are also discussed here. In the near future, most new vehicles will be equipped with short range radios capable of communicating with other vehicles or with highwayinfrastructure at distances of at least one kilometer. The radios will allow new applications that will revolutionize the driving experience, providing everything from instant, localized traffic updates to warning signals when the car ahead abruptly brakes. While resembling traditional sensor and ad hoc networks in some respects, vehicular networks pose a number of unique challenges. The differentchallenges of VANET are explained and explained in detail in this paper.
To Study and Explain the Different Methods to Built a Secure Web Application
Parveen Kumar
International Journal of Computer Science and Management Studies , 2012,
Abstract: The secure web application is the most important thing for any type of transaction or similar things. Information security should enable, to the extent possible, a business to take the risks it is prepared to take on, by designing and deploying countermeasuresthat allow for sensible business risk. Additionally, seemingly small exposures should be dealt with if there is a business case. The role of the security architecture is not to steer the business away from risk, but rather to educate their business partners about therisks they are taking and provide countermeasures that enable the business to take as much risk as suits their goals. This is very important, it is no longer acceptable for enterprise security to exclusively function as an arbiter; security in the enterprise needs architecture and design advocates, and backing at runtime.Security policy and standards are not end goals in themselves, they need to be backed by a governance model that ensures they are in use, and that it is practically possible to build, deploy, and operate systems based on their intent. In practice this meansthat the security architecture must define reusable security services that allow developers to not be security experts yet still build a secure system.
Page 1 /276
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.