223 research outputs found

    Modeling and Simulation of a DC Drive Integrated through a Demultiplexer

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    As expected, digital circuits are mostly ubiquitous and a necessary part of our modern and everyday life. Most of our electronics are formed from its configuration. Also new applications are now being designed almost all the time. This is fairly a most recent phenomenon. This chapter is aimed at integration of a DC motor to its demultiplexer encoders for the modeling of a complex system. Almost every mechanical movement that we come across is accomplished by an electronic motor, which are a means of converting energy to mechanical source. Almost all DC motors work on the same principles so the main objective is to apply direct current that operates through the interaction of magnetic flux and an electric current to produce rotational speed and configured torque to the demultiplexer encoders for the automation of a complex engine starter system. On several reruns, the result shows that the DC motor and DMF machine will be an important factor for mechanical device integration and composition of most demultiplexed machines

    Intrusion Detection through DCSYS Propagation Compared to Auto-encoders

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    In network settings, one of the major disadvantages that threaten the network protocols is the insecurity. In most cases, unscrupulous people or bad actors can access information through unsecured connections by planting software or what we call malicious software otherwise anomalies. The presence of anomalies is also one of the disadvantages, internet users are constantly plagued by virus on their system and get activated when a harmless link is clicked on, this a case of true benign detected as false. Deep learning is very adept at dealing with such cases, but sometimes it has its own faults when dealing benign cases. Here we tend to adopt a dynamic control system (DCSYS) that addresses data packets based on benign scenario to truly report on false benign and exclude anomalies. Its performance is compared with artificial neural network auto-encoders to define its predictive power. Results show that though physical systems can adapt securely, it can be used for network data packets to identify true benign cases

    Emoji Essence: Detecting User Emotional Response on Visual Centre Field with Emoticons

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    User experience is understood in so many ways, like a one on one interaction (subjective views), online surveys and questionnaires. This is simply so get the user’s implicit response, this paper demonstrates the underlying user emotion on a particular interface such as the webpage visual content based on the context of familiarisation to convey users’ emotion on the interface using emoji, we integrated physiological readings and eye movement behaviour to convey user emotion on the visual centre field of a web interface. The physiological reading is synchronised with the eye tracker to obtain correlating user interaction, and emoticons are used as a form of emotion conveyance on the interface. The eye movement prediction is obtained through a control system’s loop and is represented by different color display of gaze points (GT) that detects a particular user’s emotion on the webpage interface. These are interpreted by the emoticons. Result shows synchronised readings which correlates to area of interests (AOI) of the webpage and user emotion. These are prototypical instances of authentic user response execution for a computer interface and to easily identify user response without user subjective response for better and easy design decisions

    Construction and Initial Structure of Sexual Dysfunctions Tendencies Measure

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    Disclosure of sexual dysfunctions is difficult due to shame and social stigma. The instruments to measure sexual dysfunctions so far were quite backdated and lengthy. Moreover, there was no specific instrument available that could evaluate all the sexual dysfunctions on the Diagnostic and Statistical Manual of Mental Disorders’ criteria in a single scale; separate for men and women. The objective to develop the scale was to provide the non-clinical population with a short and straight-forward measure in English which could help them in deciding about seeking professional help. The constructed scale comprised of 7 items for males and 7 for females and employed 6-points Likert scale for responses. The study involved 79 men and 105 women (N=184; Kaiser-Meyer-Olkin Measure of Sample Adequacy=0.682 for males and 0.618 for females). The inclusion criteria were the practical involvement of the participants in sexual practices and ability to respond to a questionnaire in English. Exploratory Factor Analysis was conducted to measure the reliability and validity of the scale. While employing Principal Component Analysis for extraction and Oblimin with Kaiser Normalization as Rotation, Exploratory Factor Analysis was conducted on 7 items for males and 7 items for females separately. Sampling adequacy was found good and the adequacy of correlations between items and was found highly significant. The Cronbach’s Alpha reliability was satisfactory. 4 factors were extracted for males with 78.65% variance explained. 3 factors were extracted for females with 66.57% variance explained. The communalities for all the 14 items ranged between 0.554 to 0.937. The study established that Sexual Dysfunctions Tendencies Measure is a valid and reliable tool to measure sexual dysfunctions with the criteria of the Diagnostic and Statistical Manual of Mental Disorders

    Embedding 3-D Gaze Points on a 3-D Visual Field: A Case of Transparency

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    The paper seeks to demonstrates the likelihood of embedding a 3D gaze point on a 3D visual field, the visual field is inform of a game console where the user has to play from one level to the other by overcoming obstacles that will lead them to the next level. Complex game interface is sometimes difficult for the player to progress to next level of the game and the developers also find it difficult to regulate the game for an average player. The model serves as an analytical tool for game adaptations and also players can track their response to the game. Custom eye tracking and 3D object tracking algorithms were developed to enhance the analysis of the procedure. This is a part of the contributions to user interface design in the aspect of visual transparency. The development and testing of human computer interaction uses and application is more easily investigated than ever, part of the contribution to this is the embedding of 3-D gaze point on a 3-D visual field. This could be used in a number of applications, for instance in medical applications that includes long and short sightedness diagnosis and treatment. Experiments and Test were conducted on five different episodes of user attributes, result show that fixation points and pupil changes are the two most likely user attributes that contributes most significantly in the performance of the custom eye tracking algorithm the study. As the advancement in development of eye movement algorithm continues user attributes that showed the least likely appearance will prove to be redundant

    Electrical Properties of Preparing Biodegradable Polymer Blends of PVA/Starch Doping with Rhodamine –B

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              تم التركيز في هذا العمل على الخصائص للخليط (بولي فينيل الكحول مع النشا والكليسرين) والمشوب بصبغة الرودامين B. اذ تم استخدام طريقة الصب الاعتيادي للمحاليل المستخدمة. وهذه المحاليل تشمل بولي فاينيل الكحول والنشا بنسبة 1:1 وتم تشويب هذا الخليط بالكيلسرين وبنسب تشويب%(0,25,30,35,40) نسبة مئوية نسبية اذ اعطت النسبة أفضل نسبة مئوية 30% أفضل خواص ميكانيكية. وكذلك شوب الخليط (بولي فاينيل الكحول مع النشا وبنسب 1:1 مع نسبة 30% من الكليسرين) بصبغة الرودامين B وبنسب 0, 1, 2, 3, 4, 5, 6% , نسبة مئوية نسبية وتم اجراء القياسات الكهربائية لهذه النسب وكانت افضل نتيجة عند النسبة 5%  حيث كانت اعلى توصيلية هي 1×10-3 . بصور عامة يمكن القول ان التوصيلية تزداد بزيادة درجة الحرارة وهذا يشبه سلوك اشباه الموصلات.            This research focuses on the characteristics of polyvinyl alcohol and starch polymer blends doping with Rhodamine-B. The polymer blends were prepared using the solution cast method, which comprises 1:1(wt. /wt.).  The polymer blends of PVA and starch with had different ratios of glycerin 0, 25, 30, 35, and 40 % wt. The ratio of 30% wt of glycerin was found to be the most suitable mechanical properties by strength and elasticity. The polymer blend of 1:1 wt ratios of starch/PVA and 30% wt of glycerin were doped with different ratios of Rhoda mine-B dye 0, 1, 2, 3, 4, 5, and 6% wt and the electrical properties of doping biodegradable blends were studied. The ratio of Rhodamine-B 5% wt to the polymer blends showed high conductivity up to 1×10-3. In general, the electrical conductivity was increased with high temperature, which is similar to the behavior of semi-conductive polymers. This work focuses on the characteristics of polymer blend based on starch and polyvinyl alcohol doping with Rhodamine-B. the polymer blends were prepared using the solution cast method, which comprising 1:1(wt./wt.). ratio starch and   polyvinyl alcohol and different ratio of glycerin (0, 25, 30, 35,and 40) %. The ratio of 30% of glycerin was found to be the most suitable mechanical properties. The polymer blend of 1:1 starch/PVA and 30%of glycerin were doped with different ratio of Rhoda mine-B dye (0, 1, 2, 3, 4, 5, and 6%) and the electrical properties of doping biodegradable blends were studied. The ratio of Rhodamine-B 5% to the polymer blends was high conductivity up to 1×10-3. In general, the electrical conductivity was increased with high temperature this is similar to the behavior of semi-conductive polymers. This work focuses on the characteristics of polymer blend based on starch and polyvinyl alcohol doping with Rhodamine-B. the polymer blends were prepared using the solution cast method, which comprising 1:1(wt./wt.). ratio starch and   polyvinyl alcohol and different ratio of glycerin (0, 25, 30, 35,and 40) %. The ratio of 30% of glycerin was found to be the most suitable mechanical properties. The polymer blend of 1:1 starch/PVA and 30%of glycerin were doped with different ratio of Rhoda mine-B dye (0, 1, 2, 3, 4, 5, and 6%) and the electrical properties of doping biodegradable blends were studied. The ratio of Rhodamine-B 5% to the polymer blends was high conductivity up to 1×10-3. In general, the electrical conductivity was increased with high temperature this is similar to the behavior of semi-conductive polymers

    Gendered Dimensions of Accountability to Address Health Workforce Shortages in Northern Nigeria

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    Northern Nigeria has some of the worst health indices in sub‑Saharan Africa. Poor health outcomes are the result of multiple factors, including the lack of front-line health workers in rural and hard-to-reach areas. In 2012, funded by UK aid and DFID, the Women for Health programme was created to address the issue of gendered barriers of access to health education programmes and the subsequent dearth of nurses and midwives. It emerged that a different kind of ‘accountability’ was required to achieve improved maternal health outcomes: holding to account powerful actors within the community for their role in creating barriers of access to education for women and girls, as well as barriers to the retention of female health workers. This article, drawn directly from programme activities in Jigawa, Kano, Katsina, Yobe, and Zamfara states, documents strategies to shift gender norms that limit women’s professional choices and their access to quality maternal health services.Open Society Foundations, Vozes Desiguais/Unequal Voices, Future Health Systems consortium, the Impact Initiative and Health Systems Globa

    PREPARATION, RELEASE, RHEOLOGY AND STABILITY OF PIROXICAM EMULGEL

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    Objective: The purpose of this work was to develop and optimize the emulgel formulation of piroxicam with two types of gelling agent chitosan and xanthan gum. The release profiles of prepared formulas were investigated. In addition, the rheology and stability of the best formula were investigated.Methods: Emulsified piroxicam was prepared to use oleic acid, tween 80 and PG with a ratio (3:10:10). In xanthan based emulgel, the xanthan gum (1% and 1.5%) was spread as powder on emulsified piroxicam with stirring until emulgel was formed. In chitosan-based emgels, Chitosan gel was added to emulsified piroxicam and stirring until the Emulgel was constructed. Chitosan gels were prepared by incorporating different concentration, 2%, 3%, 6% w/v of chitosan in 1% v/v of glacial acetic acid in distilled water. In vitro release of piroxicam from different formulas was conducted in 300 ml phosphate buffer pH 7.4, at a speed of 120 rpm at 37±2°C. The amount of the drug released from the bases was determined spectrophotometrically at 504 nm. Viscometer Myr. Vr 3000 was used to measure the viscosity of the prepared formulas. The prepared formulas were stored in well-stoppered polyvinyl chloride (PVC) plastic containers in the dark for 6 mo at room temperature. They were checked for drug content, viscosity, and pH change bimonthly throughout the period.Results: The results showed that the dissolution increases significantly with increasing the concentration of xanthan. Chitosan has significant synergized the enhancements of xanthan gum in the release. Rheological behaviour of the selected formula containing chitosan (2%) and xanthan gum (1.5) had shear thinning in nature showing a decrease in viscosity at the increasing shear rates. The selected formula was stable 6 mo at 40˚C/75% RH and 4˚C. The formula found was yellow viscous creamy preparation with the smooth homogenous appearance. The pH and the drug release was also found to be stable under storage conditions.Conclusion: Piroxicam release can be improved by preparing emulgel which stable and have good rheologic properties
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