Using Mobile Data Collectors to Enhance Energy Efficiency a nd Reliability in Delay Tolerant Wireless Sensor Networks

Yasmine-Derdour, Yasmine-Derdour,Bouabdellah-Kechar, Bouabdellah-Kechar,Faycal-Khelfi, Mohammed Korea Information Processing Society 2016 Journal of information processing systems Vol.12 No.2

A primary task in wireless sensor networks (WSNs) is data collection. The main objective of this task is to collect sensor readings from sensor fields at predetermined sinks using routing protocols without conducting network processing at intermediate nodes, which have been proved as being inefficient in many research studies using a static sink. The major drawback is that sensor nodes near a data sink are prone to dissipate more energy power than those far away due to their role as relay nodes. Recently, novel WSN architectures based on mobile sinks and mobile relay nodes, which are able to move inside the region of a deployed WSN, which has been developed in most research works related to mobile WSN mainly exploit mobility to reduce and balance energy consumption to enhance communication reliability among sensor nodes. Our main purpose in this paper is to propose a solution to the problem of deploying mobile data collectors for alleviating the high traffic load and resulting bottleneck in a sink's vicinity, which are caused by static approaches. For this reason, several WSNs based on mobile elements have been proposed. We studied two key issues in WSN mobility: the impact of the mobile element (sink or relay nodes) and the impact of the mobility model on WSN based on its performance expressed in terms of energy efficiency and reliability. We conducted an extensive set of simulation experiments. The results obtained reveal that the collection approach based on relay nodes and the mobility model based on stochastic perform better.

Basic Study of Mechanical Properties of Artificial Nano Composite Fiber Using Atomic Force Microscopy

R. Yasmin(Rubiya Yasmin),H. M. Seo(서현민),H. K. Kweon(권현규),C. Y. Park(박창용) 한국기계가공학회 2019 한국기계가공학회 춘추계학술대회 논문집 Vol.2019 No.4

Weighted Erlang and Lomax Distributions: Their Properties and Applications to Water Quality Inspection

Yasmin, Talat,Aslam, Muhammad,Hussain, Jaffer,Jun, Chi-Hyuck Korean Institute of Industrial Engineers 2017 Industrial Engineeering & Management Systems Vol.16 No.3

Two new families of weighted Erlang and Lomax probability distributions are developed. Various properties including the moments and the bias in the estimated mean of a weighted distribution are derived. As applications of these distributions, time truncated acceptance sampling plans are designed to obtain the minimum sample size and the acceptance number for un-weighted and weighted distributions, where various pre-assigned producer's and consumer's risks, various ratios of true mean to the specified mean life, and various test termination time multipliers are considered. A real data set is analyzed to illustrate the proposed time-truncated sampling plan.

Biosensors and their Applications in Food Safety: A Review

Yasmin, Jannat,Ahmed, Mohammed Raju,Cho, Byoung-Kwan Korean Society for Agricultural Machinery 2016 바이오시스템공학 Vol.41 No.3

Background: Foodborne pathogens are a growing concern with respect to human illnesses and death. There is an increasing demand for improvements in global food safety. However, it is a challenge to detect and identify these harmful organisms in a rapid, responsive, suitable, and effective way. Results: Rapid developments in biosensor designs have contributed to the detection of foodborne pathogens and other microorganisms. Biosensors can automate this process and have the potential to enable fast analyses that are cost and time-effective. Various biosensor techniques are available that can identify foodborne pathogens and other health hazards. Conclusions: In this review, biosensor technology is briefly discussed, followed by a summary of foodborne pathogen detection using various transduction systems that exhibit specificity for particular foodborne pathogens. In addition, the recent application of biosensor technology to detect pesticides and heavy metals is briefly addressed.

Ethics in an Inter-Connected World

( Yasmin Merali ) 한국윤리경영학회(구-한국기업윤리학회) 2004 企業倫理硏究 Vol.8 No.-

Self-monitoring urinary salt excretion device can be used for controlling hypertension for developing countries

Yasmin Jahan,Michiko Moriyama,Moshiur Rahman,Atiqur Rahman 대한고혈압학회 2019 Clinical Hypertension Vol.25 No.2

Restriction of dietary salt is widely recommended in the management of hypertension, but assessment of individual salt intake has drawn little attention. Monitoring nutritional salt intake through sodium excretion has been popular, because the main route for sodium (Na) excretion is through the urine. Nonetheless, direct measurement of dietary salt intake is time consuming and lacks accuracy. To collect a 24-h urine and measure the content is difficult method for most patients. In this review paper, we would like to explore the usefulness of measuring urinary salt excretion by using a self-monitoring device at home. Measuring daily overnight urine by the self-monitoring device at home will be useful for the management of hypertension suitable for each individual. From the recent increase of processed foods, the term “salt intake” would not accurately be equal to “sodium intake”. Devices measuring urinary sodium excretion have been developed and evaluated on their accuracy and correlation with sodium intake. They must be handy, simple and capable of measuring large populations to be useful for monitoring of daily salt intake and to guide salt restriction as well as the long-term effects by dietary salt intake.

Evaluation of a novel commercial quaternary ammonium compound for eradication of Mycobacteria, HCV and HBV in Egypt

Yasmine Samy Elkholy,Asmaa Sayed Hegab,Dalia Kadry Ismail,Reem Mostafa Hassan 한국미생물학회 2016 The journal of microbiology Vol.54 No.1

Endoscopes are a common source of outbreaks of healthcare- associated infections. It is therefore important to identify high-level disinfectants capable of eliminating or killing all vegetative bacteria, mycobacteria, and viruses. Aldehydebased disinfectants are most commonly used in clinical practice but resistance has recently been detected and side effects associated with these disinfectants are well documented. In this study, we evaluated Virusolve+® EDS, a novel quaternary ammonium compound formulation supplied by Amity international, against Mycobacterium bovis (ATCC-27289), hepatitis C virus (HCV)-positive serum and hepatitis B surface antigen-positive serum. We also compared its efficacy against Cidex® (glutaraldehyde 2%), an aldehyde-based disinfectant. M. bovis showed no growth after 10 weeks with either Virusolve+® or Cidex®. Virusolve+® achieved a 104- fold reduction in the initial 106 HCV load under clean conditions (without red blood cells) for 20 min, whereas Cidex® achieved this reduction under clean and dirty conditions (without and with red blood cells, respectively) after both 10 and 20 min. Both Virusolve+® and Cidex® were able to eradicate hepatitis B virus (HBV) infectivity under clean conditions after 10 and 20 min, whereas under dirty conditions they were only able to eradicate virus infectivity after 20 min. Virusolve+® EDS when compared with Cidex® showed equal mycobactericidal activity completely eradicating M. bovis. However, both showed comparable virucidal activity against HBV, which was more effective under clean conditions, emphasizing the importance of the cleaning step in endoscope reprocessing. Cidex® was more effective at eradicating HCV under dirty conditions after a short contact time.

Determination of Dopamine by Dual Doped Graphene-Fe₂O₃ in Presence of Ascorbic Acid

Yasmin, Sabina,Ahmed, Mohammad Shamsuddin,Jeon, Seungwon The Electrochemical Society 2015 Journal of the Electrochemical Society Vol.162 No.14

<P>Both nitrogen and sulfur dual doped graphene supported Fe2O3 (NSG-Fe2O3) have been prepared by hydrothermal methods and subsequently utilized for the electrochemical determination of dopamine (DA) in presence of ascorbic acid (AA). The NSG-Fe2O3 has been characterized via transmission electron microscopy (TEM) and X-ray photoelectron spectroscopic (XPS). The electrochemical detection of DA was measured through the cyclic voltammetry, differential pulse voltammetry, and amperometric techniques in a 0.1 M phosphate buffer solution (PBS) at pH 7.4. Interferences have been investigated in presence of AA, glucose, serotonin, N2H4, and uric acid. The NSG-Fe(2)O(3)has shown good analytical performance for DA with comparatively better sensitivity (29.1 mu A mM(-1)), long linear detection range (0.3-210 mu M) and detection limit (0.035 mu M) (S/N = 3). The catalytic rate constant for DA detection has been calculated as 9.6 x 10(4) M-1 s(-1) with a good diffusion coefficient of 3.5 x 10(-4) cm(2) s(-1). The electrooxidation of DA may enhances by fast proton acceptance and/or electron donation due to higher electron density for excess loan pair electron that provided from N and S dual-doped graphene sheets. (C) The Author(s) 2015. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives 4.0 License (CC BY-NC-ND, http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reuse, distribution, and reproduction in any medium, provided the original work is not changed in any way and is properly cited. For permission for commercial reuse, please email: oa@electrochem.org. All rights reserved.</P>

Evaluation of the effect of EDTA on the antifungal properties, flexural strength, and colour stability of heat polymerised PMMA resin for implant overdentures

Yasmin Fathima,Jayakrishnakumar Sampathkumar,Hariharan Ramakrishnan,Nagarasampatti Sivaprakasam Azhagarasan 대한치과이식임플란트학회 2022 The Korean Academy of Implant Dentistry Vol.41 No.2

Purpose: To evaluate the effect of ethylenediaminetetraacetic acid (EDTA) on the antifungal properties, flexural strength, and color stability of heat polymerized polymethyl methacrylate (PMMA) denture base resin. Materials and Methods: Eighty PMMA heat cure denture base resin test samples of the following sizes were fabricated: 10×1 mm (disc), 64×10×3.3 mm (strip), and 50×0.5±0.05 mm (disc) with or without EDTA. The PMMA heat cure denture base resin samples formed one group (GROUP I, n=40) and PMMA heat cure denture base resin samples incorporated with 8% EDTA were the second group (GROUP II, n=40). These were further subdivided according to the testing parameters as follows: Qualitative analysis of antifungal properties (GROUP I: 10 and GROUP II: 10), quantitative analysis of antifungal properties (GROUP I: 10, GROUP II: 10), flexural strength, and colour stability, 10 samples each for both groups and properties. The antifungal properties of GROUP I and GROUP II were evaluated qualitatively and quantitatively by measuring the zone of inhibition using the disc diffusion method and colony forming units (CFU), respectively. The flexural strength and color stability were evaluated using the three-point bend test and a spectrophotometer. The color difference (ΔE) was calculated. Results: The mean zone of inhibition for GROUP I and GROUP II samples was 0 mm and 9.2 mm, respectively. The mean CFU of GROUP I and GROUP II was 119.50×106 and 45×, respectively. The mean flexural strength of GROUP I and GROUP II samples was 145.43 MPa and 112.57 MPa. The colour difference between GROUP I and GROUP II samples ΔE was 2.89. Conclusions: PMMA heat polymerized denture base resin incorporated with EDTA exhibited antifungal properties and a minimum reduction in flexural strength, with a perceptible color difference. This modified PMMA resin is recommended for implant overdentures.

Penile Low-Intensity Shock Wave Therapy: A Promising Novel Modality for Erectile Dysfunction

Yasmin Abu-Ghanem,Noam D. Kitrey,Ilan Gruenwald,Boaz Appel,Yoram Vardi 대한비뇨의학회 2014 Investigative and Clinical Urology Vol.55 No.5

Penile extracorporeal low-intensity shock wave therapy (LIST) to the penis has recently emerged as a novel and promising modality in the treatment of erectile dysfunction (ED). LIST has angiogenic properties and stimulates neovascularization. If applied to the corpora cavernosa, LIST can improve penile blood flow and endothelial function. In a series of clinical trials, including randomized double-blind sham-controlled studies, LIST has been shown to have a substantial effect on penile hemodynamics and erectile function in patients with vasculogenic ED. LIST is effective in patients who are responsive to phosphodiesterase 5 inhibitors (PDE5i) and can also convert PDE5i nonresponders to responders. The response to LIST wanes gradually over time, and after 2 years, about half of the patients maintain their function. Extensive research is needed to understand the effect of LIST on erectile tissue, to modify the treatment protocol to maximize its outcomes, and to identify the patients who will benefit the most from this treatment.