Pemodelan dan Simulasi Motor Kapasitor pada Kondisi Variable Speed

Permanent Split Capacitor (PSC) Motor is a type of single-phase induction motor which widely used and one of circuit to run the water pump. The water pump is needed in the irrigation of agricultural land. If the location of agricultural land is not supplied with electricity grid, then the Water Pump may be driven by solar modules. This paper describes a design of power electronics system that convert DC Power from Solar Panels into AC Power for supplying the PSC Motor. The idea of this paper is to look at the speed characteristics of PSC Motor from the effect of sunlight Irradiance. The system is simulated using MATLAB-Simulink R2015a. The system driver consist of Push Pull Converter and Full Bridge Inverter type. DC voltage of the solar panel is raised to 311 V using Push Pull Converter, then the voltage is converted into AC voltage using the full bridge inverter. PSC Motor models and solar module models are using the available models in the MATLAB-Simulink R2015a library. The Motor Capacitor models is using the Single Phase Asynchronous Machine models and Capacitor of 16 μF. The Motor parameters is using the parameters that have been proposed by Hrabovcova V. The solar Modules use the MEMC Singapore MEMC-M250ACA-20. In this research, the solar panel was given the sunlight Irradiance with 5 conditions, the condition is: Irradiance 1000 W/m2, 800 W/m2, 600 W/m2, 400 W/m2, and 200 W/m2. The effect of sunlight Irradiances shows the speed characteristics of PSC motor that follows logarithmic trendline

Evaluasi Kesesuaian Penulisan Resep pada Kasus ISPA Non Pneumonia di Poli MTBS Puskesmas Kecamatan Cengkareng

Acute respiratory infections (ARI) is one of the major health problems in Indonesia. There are three classifications of cases of ARI, consist of pneumonia, severe pneumonia and non pneumonia. This study aimed to find an overview of the use of antibiotics and the evaluation of suitability prescriptions performed in cases of non pneumonia Acute Respiratory Infections (ARI) in IMCI Polyclinic, Cengkareng District Community Health Centre (Puskesmas Cengkareng), West Jakarta. Evaluation for the prescription suitability was useful to find the percentage of the suitability of prescribing on the existing management. This activity was done using retrospective method with data of 100 children patients suffered from non pneumonia cough obtained from registration book on IMCI Polyclinic during February 2016. The existing data was then matched to the patient's status and prescription books that went into the dispensary unit at second floor. Furthermore, we evaluated the suitability of the reference book titled Integrated Management Scheme for Toddler Patients/Bagan Manajemen Terpadu Balita Sakit (MTBS), issued by the Ministry of Health of the Republic of Indonesia in 2011. The results showed that the percentage of antibiotic use in the sample was 59.6%, which the most frequent antibiotic used was amoxicillin. Therefore we concluded that the prescription compliance with IMCI guidelines in Puskesmas Cengkareng at February 2016 was inadequate yet

Robot Beroda Pencari Boneka

Kebakaran merupakan salah satu bencana yang paling menakutkan bagi manusia, karena selain mengancam nyawa orang yang terjebak di dalamnya, tetapi juga membahayakan nyawa sang penyelamat. Atas dasar itulah, maka dikembangkan suatu teknologi robot pencari boneka yang diharapkan dapat menjadi awal bagi pengembangan aplikasi penyelamatan manusia di masa yang akan datang. ”Robot Beroda Pencari Boneka” merupakan sebuah robot yang digerakkan dengan menggunakan 2 buah motor servo dan dilengkapi dengan sensor jarak ultrasonik, sensor jarak infra merah, dan sensor kompas supaya robot mampu bernavigasi menyusuri lorong-lorong dan mencari boneka. Robot tersebut memiliki kemampuan untuk mencari boneka yang diletakkan di dalam salah satu ruangan dari 4 ruangan yang ada pada lapangan. Konstruksi mekanik robot dibuat dari bahan aluminium dan akrilik. Sistem elektronika yang dipasang pada robot dikontrol dengan menggunakan sebuah mikrokontroler AVR ATmega32. Sensor-sensor yang dipasang pada robot adalah sensor jarak ultrasonik dan sensor jarak infra merah, untuk mengukur jarak obyekobyek di sekitar robot, sensor kompas berfungsi untuk mengetahui arah orientasi robot di lapangan, sensor garis putih yang digunakan untuk mendeteksi garis putih yang ditempel di lapangan, dan sensor suhu Thermopile Array (TPA) untuk mendeteksi ada atau tidaknya boneka di ruangan. Robot mampu menemukan boneka pada keempat ruangan dan kembali lagi ke HOME

ATTITUDE OF STUDENTS AND TEACHERS TOWARDS VOCATIONAL EDUCATION IN SECONDARY SCHOOLS IN OTA, OGUN STATE, NIGERIA

Vocational education is a vital tool for economic development. The Federal Government, in 2011,launched the Senior Secondary Education Curriculum (SSEC) which requires that all senior secondary school students be trained in one vocational subject. This study examines the attitudes of students and teachers towards vocational education in secondary schools in Ado-Odo Local Government,Ogun State, Nigeria. It aims to highlight the factors that affect and influence the attitudes of students and teachers towards vocational training as well as identify ways through which these attitudes can be improved. The study employs the use of questionnaires distributed to 200 students and 60 teachers in four secondary schools in Adodo-Ota LGA. The results show that students and teachers recognize the importance of vocational education. The study recommends that students be provided with modern day equipment to encourage students’ engagement in vocational subjects. The curriculum for the teaching of vocational subjects should be comprehensive, standardized and enforced in all secondary schools to ensure that students acquire all the skills they need to practice the vocation(s). These will improve vocational education and the attainment of its goals in secondary schools

Odontogenic tumours: a review of 266 cases

Objectives: The aim of this study was to examine the relative frequency of odontogenic tumours at a tertiary hospital in Ibadan, as well as to study the various histologic types based on WHO 2005 classification and to compare results from this study with those of previous studies. Study design: The records of the Oral Pathology Department of University College Hospital were reviewed. Lesions diagnosed as odontogenic tumours were categorized into four groups based on WHO 2005 classification and were analyzed for age, sex and site using SPSS for Window (version 18.0; SPSS Inc. Chicago, IL) and frequency tables were generated. Results: Two hundred and sixty six (41.7%) cases of odontogenic tumours were seen. The mean age of occurrence was 32.6 (±15.815) years (range3-82 years) and peak age was in the third decade of life. Eleven (4.1%) malignant odontogenic tumours were seen. Ameloblastoma with 65.4% of cases was the most common odontogenic tumour followed by fibromyxoma (14.7%), no case of odontoma was seen in this series. Conclusion: The findings were mostly similar to those of African and Asian series and showed variations from reports from the Americas. The reason for the disparity in African and American series needs further investigations

Appraisal of jaw swellings in a Nigerian tertiary healthcare facility

Introduction: The mandible and maxilla can be the site of myriads of lesions that may be categorized as neoplastic, cystic, reactive and infective or inflammatory. Literature reviewing jaw swellings in an amalgamated fashion are uncommon, probably because aetiologies for these swellings are varied. However, to appreciate their relative relationship, it is essential to evaluate the clinico-pathologic profile of jaw swellings. The aim of this appraisal is to describe the array of jaw swellings seen at our hospital from 1990 to 2011, to serve as a reference database. Methodology: Biopsy records of all histologically diagnosed cases of jaw swellings seen at the department of Oral Pathology, University College Hospital between January 1990 and December 2011 were retrieved, coded and inputted into SPSS version 20. Data on prevalence, age, sex, site and histological diagnosis were analysed descriptively for each category of jaw swellings. All patients below 16 years were regarded as children. Results: A total of 638 jaw swellings were recorded in the 22-year study period. The Non Odontogenic Tumours (NOT) were the commonest, accounting for 46.2% of all jaw swellings. Odontogenic Tumours (OT) formed 45% of all adult jaw swelling while it formed 25.2% in children and adolescents. Ameloblastoma was the commonest while the most common NOT was ossifying fibroma (OF). Chronic osteomyelitis of the jaws was about 6 times commoner in adult females than males and mostly involved the mandible. The most common malignant jaw swelling was Burkitts' lymphoma (BL) that was about 7 times more in children than adults. Osteogenic sarcoma was the most common malignancy in adults. Conclusion: Jaw swellings are extensively varied in types and pattern of occurrence. This study has categorized jaw swellings in a simple but comprehensive fashion to allow for easy referencing in local and international data acquisition and epidemiological comparison

A retrospective review of 61 cases of adenomatoid odontogenic tumour seen in five tertiary health facilities in Nigeria

Introduction: Adenomatoid odontogenic tumor (AOT) is a benign lesion originating from the dental lamina or its remnants. It is a relatively uncommon neoplasm representing about 3% of all odontogenic tumors. The aim of this study was to examine the clinical and radiological characteristics of AOTs in five major tertiary centres in Nigeria. Methods: Archival hospital-based data stores of five tertiary health facilities in Nigeria were accessed. Case files and biopsy records were retrieved to obtain relevant information. Data was collected according to a proforma for standardization and entered into and analysed using SPSS for Windows (version 20.0; SPSS Inc. Chicago, IL). Results: 61 (4.5%) cases of AOT were documented. The age range was 8-46 years with a mean age of 20.4±9.9 years. Male: Female ratio was 1:1.3. The anterior maxilla had 34 (55.8%) cases and the anterior mandible had 20 (32.8%) cases. 40 (65.6%) follicular cases, 20 (32.8%) extra-follicular cases and 1(1.6%) extraosseous case were found. 31 cases (61.1%) were associated with impacted teeth and the upper canine was involved in 19 (57.6%) cases. Conclusion: This study showed AOT to be more common in the maxilla, more in females, most often associated with impacted canines, however, the suggestion of AOT being a “Two third tumour” was not observed in this study

Effects of Organic Turmeric on Liver Integrity and Oxidative Stress of the Brain in Rabbits Exposed to Ultraviolet Radiation

This project investigated the effects of organic turmeric on the liver and oxidative stress of the brain in rabbit acutely exposed to ultraviolet radiation. Thirty five weaned rabbits between 8-10 weeks of age, randomly allocated to control (A) and five (5) treatments: B, C, D, E and F were used for this experiment. Treatment A: fed organic feed without turmeric inclusion and not radiated, Treatment B: fed diet supplemented with 2% turmeric as its constituents but not radiated, Treatment C: fed organic feed without turmeric inclusion before but after radiation, Treatment D: fed organic feed without turmeric inclusion before and after radiation. Treatment E: fed diet supplemented with 2% turmeric before but not after radiation. Treatment F: fed diet supplemented with 2% turmeric before and after radiation. There were significant (