315 research outputs found
PROTOTYPE PERANCANGAN MEMBUKA DAN MENUTUP PINTU GERBANG RUMAH MENGGUNAKAN MOTOR DC BERBASIS ANDROID
The gate is one of the main security in maintaining a home. Because the gate is the first coating to protect the contents and building of the house. It also did not escape the perpetrators of robbery criminal acts to have a way to overcome the weakness of protection given extra security on the fence. With the development of wireless technology, one of which is cheap and easy-to-use Bluetooth that can be reached by mobile phones that can be reached by all groups, Bluetooth is a facility on cellular telephones that is used to order to open and close doors with a Bluetooth application that is installed on a smartphone. The testing tool system method opens the gate of the house using an Android-based DC motor using an ATMEGA 8 microcontroller consisting of several blocks that are interconnected to one another. The results of the whole set of tools open and close the automatic gate using an android-based motor from a minimum system of ATMEGA 8, 5V Power Supply, blue-tooth, relay, handphone, LCD. Each component is interrelated and connected to form a whole set of tools opening and closing automatic gates using an Android hard-ware based hard-ware. Based on the experimental results the following conclusions can be drawn: (1) Bluetooth can work with a speed of 2.4 GHz and within 10 meters, (2) The speed of the blue-tooth application on the device is 0.1 s and (3) Relay is used as much as 4 to control 4 commands i.e. the first door is open and closed and the second door is open and closed
A Pervasive Middleware for Activity Recognition with Smartphones
Title from PDF of title page, viewed on August 28, 2015Thesis advisor: Yugyung LeeVitaIncludes bibliographic references (pages 61-67)Thesis (M.S.)--School of Computing and Engineering. University of Missouri--Kansas City, 2015Activity Recognition (AR) is an important research topic in pervasive computing. With the rapid increase in the use of pervasive devices, huge sensor data is generated from diverse devices on a daily basis. Analysis of the sensor data is a significant area of research for AR. There are several devices and techniques available for AR, but the increasing number of sensor devices and data demands new approaches for adaptive, lightweight and accurate AR. We propose a new middleware called the Pervasive Middleware for Activity Recognition (PEMAR) to address these problems. We implemented PEMAR on a Big Data platform incorporating machine-learning techniques to make it adaptive and accurate for the AR of sensor data. The middleware is composed of the following: (1) Filtering and Segmentation to detect different activities; (2) A human centered adaptive approach to create accurate personal models, leveraging on the existing impersonal models; (3) An activity library to serve different mobile applications; and (4) Activity Recognition services to accurately perform AR. We evaluated recognition accuracy of PEMAR using a generated dataset (15 activities, 50 subjects) and USC-Human Activity Dataset (12 activities, 14 subjects) and observed a better accuracy for personal trained AR compared to impersonal trained AR. We tested the applicability and adaptivity of PEMAR by using several motion based applications.Introduction -- Related work -- Middleware for gesture recognition -- Implementation and applications -- Results and evaluation -- Conclusion and future wor
Nose to Brain Delivery of Therapeutic Agents
The potential treatment approaches for various disorders associated with central nervous system are invasive and do not allow frequent administration. Brain targeting of drugs by intranasal route is a safe and noninvasive method of drug delivery which allows frequent administration and is certainly more patient compliant than the currently folloinvasive methods. In this study, the plausibility of delivering neurotrophins [nerve growth factor (NGF) and brain derived neurotrophic factor (BDNF)], neurotrophinogenic agents (ex: carnosic acid) and antibiotics (ex: cefotaxime) to brain via nose-brain pathway using chitosan as barrier modulating agent was investigated. In vitro permeation studies of fluorescein isothiocyanate dextran (FD40k) across bovine olfactory mucosa using different viscosity grades chitosan at different concentrations indicated that medium viscosity grade chitosan (0.25% w/v) enhanced the permeation of FD40k significantly over other grades and concentration of chitosan. Such similar results were observed when medium viscosity grade chitosan (0.25% w/v) was used as barrier modulating agent in studies involving nerve growth factor, brain derived neurotrophic factor, carnosic acid and cefotaxime. The potential of intranasal formulations of therapeutic agents containing medium viscosity grade chitosan (0.25% w/v) was explored by carrying out in vivo studies in male Sprague-Dawley rats. The brain bioavailability of group of rats administered intranasally with NGF and BDNF solution containing chitosan was significantly enhanced by ?14 fold and ?13 fold, respectively,compared to group of rats administered with same concentration of NGF and BDNF solution without chitosan. Pharmacodynamic studies clearly indicated that the immobility time in case of rats subjected to immobilization stress was significantly decreased upon intranasal administration of BDNF solution containing chitosan. In studies involving carnosic acid the neurotrophin levels (NGF and BDNF) were enhanced significantly upon intranasal administration of carnosic acid with chitosan, which was ?1.5–2 fold more over the parenteral route. When carnosic acid with chitosan formulations were administered in the form of nanoparticles only once in contrary to that of solution which was administered daily once for a period of 4 days there was no statistically significant difference in the NGF and BDNF levels. However, when the formulations were administered in the form of solution only once, the NGF and BDNF levels even after 4 days were not statistically significant from the vehicle control group. The results clearly indicated that carnosic acid nanoparticles could reduce the frequency of administration and also could maintain prolonged therapeutic levels due to higher retention time at the site of delivery. The pharmacokinetic studies of cefotaxime indicated that the drug levels attained in the brain following i.v and intranasal administrations were comparable. However, the drug levels in the plasma following intranasal administration were almost an order of magnitude less when compared to that of i.v administration. These results suggested that intranasal administration of cefotaxime along with chitosan is likely to result in less systemic side effects compared to parenteral administration. Nose to brain delivery of therapeutic agents along with chitosan as barrier modulating agent is a potential approach for treating various disorders associated with central nervous system
Integration of a skid and hatch-based launch and recovery system for ROVs on USVs
Subsea surveying plays a crucial role in the oil and gas industry by facilitating the maintenance, repair,
and inspection of underwater equipment and infrastructure. As the demand for sustainable offshore oil
and gas resources grows, there is an urgent need for cost-effective and efficient surveying methods. To
address this, the use of Unmanned Surface Vessels (USVs) for launching and recovering remotely
operated vehicles (ROVs) has emerged as a promising solution. Developing a specialized Launch and
Recovery System (LARS) for USVs can significantly enhance survey operations, resulting in longer
ROV operation durations, reduced reliance on support vessels, and improved overall efficiency.
The primary objective of this thesis is to design an efficient LARS for ROVs using USVs. This
involves the development of a hatch and skid that enable seamless transitions between the USV and
the ocean. Modifications will be made to an existing survey skid to ensure its suitability, and static
analysis will be conducted to validate the designs and identify areas for improvement. Various design
options and materials will be explored to withstand impact loads and optimize performance.
This study's development of the new LARS system along with its components and design
considerations, holds significant potential to advance subsea surveying technology. It can enable safer
and more efficient exploration and maintenance of offshore oil and gas resources while promoting the
sustainable development of offshore energy
Paving the path: empowering women in STEM from university to industry
The recent digital transformation of higher education underscores the crucial role of STEM disciplines in addressing real-world challenges, emphasizing the urgent need for problem-solving skills, creativity, and diversity within the STEM student community. Despite growing awareness of the gender disparity in STEM professions, women remain underrepresented in these fields. This paper conducts a comprehensive study delving into the determinants influencing the decision to pursue a STEM degree and the challenges faced during STEM education. Through survey data analysis, the research explores actionable mechanisms to enhance the presence of women in STEM subjects and support their career progression. The study not only identifies obstacles but also formulates a set of recommendations to establish a robust support system for women in STEM. These recommendations aim to foster their academic retention, facilitate continuous professional development, and contribute to narrowing the gender gap in STEM occupations. By addressing the root causes and proposing concrete solutions, this research seeks to contribute to a more inclusive and equitable STEM landscape, fostering an environment where women can thrive and make significant contributions to the ever-evolving field of science and technology. Furthermore, this research serves as a call to action for institutions, policymakers, and stakeholders to collectively champion initiatives that empower and propel women to excel in STEM fields
Socially desirable responding: The psychometric properties of the Icelandic version of the Balanced Inventory of Desirable Responding
Efst á síðunni er hægt að nálgast greinina í heild sinni með því að smella á hlekkinnBalanced Inventory of Desirable Responding (BIDR) er eitt mest notaða mælitækið á félagslega æskilegri svörun. Það samanstendur af tveimur undirkvörðum, sjálfsblekkingu (SB) og ímyndarstjórnun (ÍS), sem innihalda hvor um sig 20 fullyrðingar sem svarað er á sjö punkta kvarða (1=Ekki satt, 4=Að einhverju leyti satt, 7=Mjög satt). Tilgangur þessarar rannsóknar var að þýða BIDR kvarðann og kanna próffræðilega eiginleika íslenskrar útgáfu BIDR með staðfestandi þáttagreiningu og ígrunduðum viðtölum (e. cognitive interviews with probing). Í fyrri fasa rannsóknarinnar (N=321) er þýðingarferlinu og próffræðilegum eiginleikum lýst. Niðurstöður bentu til þess að meðaltöl og fylgni milli undirkvarða væru sambærileg þeim sem finnast í erlendum rannsóknum og áreiðanleiki mælitækisins væri viðunandi. Niðurstöður úr staðfestandi þáttagreiningu voru einnig sambærilegar þeim sem fengist hafa í erlendum rannsóknum, þó fram hafi komið vandamál sem tengjast vissum atriðum kvarðans. Í seinni fasa rannsóknarinnar var fjallað um niðurstöður viðtala (N=20) þar sem farið var ítarlega í íslenska þýðingu kvarðans. Niðurstöður þeirrar rannsóknar bentu til þess að ekki væru til staðar alvarleg vandamál varðandi þýðingu kvarðans.The Balanced Inventory of Desirable Responding (BIDR) is one of the most commonly used measures of socially desirable responding. It consists of two scales, Self-Deceptive Enhancement (SDE) and Impression Management (IM), containing 20 statements each, answered on a 7-point scale (1=Not true, 4=Somewhat true, 7=Very true). The purpose of this paper was to translate the BIDR to Icelandic and examine the psychometric properties of the Icelandic translation using Confirmatory Factor Analysis (CFA) and cognitive interviews with probing. The first phase of the study (N=321) focuses on the translation process and the psychometric properties of the BIDR. The results indicated that the means, intercorrelation between the two scales, and CFA results are comparable to those found in previous studies and the reliability is acceptable, although the results indicated certain items were problematic. In the second phase of the study (N=20) cognitive interviews with probing were used in order to identify potential problems with regards to the translation. The results suggest the Icelandic translation is adequate
Synthesis and characterisation of graphene hybrid nanoarchitechures for potential sensing applications
The main focus of our project is to find a novel method to construct graphene hybrid systems and functionalised AuNPs with graphene which opens a new pathway for the potential and highly sensing applications in the area of graphene hybrid nanoarchitecture such as actuators and touch sensors. Adsorption of different CH3 and COOH alkanethiols on the surface of modified Au electrode with different CRGO\u27s sheets to increase the efficient electron pathways for the development of new class graphene electrodes
Integration of a skid and hatch-based launch and recovery system for ROVs on USVs
Subsea surveying plays a crucial role in the oil and gas industry by facilitating the maintenance, repair, and inspection of underwater equipment and infrastructure. As the demand for sustainable offshore oil and gas resources grows, there is an urgent need for cost-effective and efficient surveying methods. To address this, the use of Unmanned Surface Vessels (USVs) for launching and recovering remotely operated vehicles (ROVs) has emerged as a promising solution. Developing a specialized Launch and Recovery System (LARS) for USVs can significantly enhance survey operations, resulting in longer ROV operation durations, reduced reliance on support vessels, and improved overall efficiency.
The primary objective of this thesis is to design an efficient LARS for ROVs using USVs. This involves the development of a hatch and skid that enable seamless transitions between the USV and the ocean. Modifications will be made to an existing survey skid to ensure its suitability, and static analysis will be conducted to validate the designs and identify areas for improvement. Various design options and materials will be explored to withstand impact loads and optimize performance.
This study's development of the new LARS system along with its components and design considerations, holds significant potential to advance subsea surveying technology. It can enable safer and more efficient exploration and maintenance of offshore oil and gas resources while promoting the sustainable development of offshore energy
AN OBSERVATIONAL STUDY ON MEDICATION ADHERENCE AND PREVALENCE OF COMPLICATIONS IN TYPE 2 DIABETES MELLITUS PATIENTS
Objective: Diabetes is a complex heterogeneous disorder with chronic multiple illness which needs continuous medical management. Along with the medication life style modifications (diet, exercise) and patient self-management education is necessary not only for glyceamic control but also for prevention and delay of acute and long term complications. In this regard an observational study was carried out among 167 type 2 diabetic patients using a self-administered questionnaire in tertiary care hospital, Guntur.
Methods: Patients of both genders in the age of 30-89 with co morbidities were included in the study. Data regarding social habits, medication and adherence, duration of diabetes, co-morbidities, presence of diabetic complications along with the prevalence of complications while practicing regular diet, exercise with medical adherence was collected and evaluated.
Results: Among 167 patients 64.64 % were male and 35.36% were female. 14.4% of the populations are with diabetes from more than 17years. 65.3% of the patients don’t have alcoholic and smoking habit. Only 51.5% of the population was adherent to the medications. Hypertension is major co-morbidity existing among them. 82% of the study population reported macro vascular complication. The periodic prevalence rate(1-5years) of complications in type 2 diabetic patients who are adherent to medications and life style modifications was found to be 11.4% and the periodic prevalence rate of complications in patients who are either non-adherent to medications or life style modifications was 88.6%.
Conclusion: Medical and life style adherence is strongly recommended which also must be promoted by conducting awareness programme and health care camps with continuous supervision by the family members over patients for healthy society
Den store reisen : hvordan identitet konstrueres gjennom kulturell utveksling
Master's thesis in global studies. School of Mission and Theology, May 2015MV 17 S
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