UIN (Universitas Islam Negeri) Sunan Kalijaga, Yogyakarta: E-Journal Fakultas Sains dan Teknologi
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Manufacture and Sensor’s Characterization for Optimizingthe Manufacture of Resistance Sensors Based onTea with Natural Sugar and Artificial Sugar
No full textThis research aims to identify sensors. This research was carried out through 3 stages, namely: designing resistance sensors,making resistance sensors, testing resistance sensors. The sensor sheceme by using software Fritzing. The tools used in making these sensors include Power and solder, for materials used are plain PCB, 2.2KΩ resistors, copper wire, paper, pens, rulers, and materials for testing are tea, natural sugar and artificial sugar. Sensor testing is performed in data collection by measuring voltage. Because the data generated is in the form of voltage. By doing 2 variations of the volume of 50ml and 100ml which is done 5 times with each volume repetition. The data obtained is then processed by calculating the mean and its uncertainty. The results of this research provide information that the natural sugar tea voltage for 50ml volume (0.958 ± 0.1916) 80% repeatability. And for 100ml volume (0.884 ± 0.1768) the compatibility is 80%. While the artificial sugar tea voltage for 50ml volume (1.488 ± 0.2976) 80% compatibility and for 100ml volume (1.484 ± 0.2968) 80% repeability. From the data obtained, both can be seen to have different voltage values and the same compatibility value, which is 80%. Because the resulting repeatability does not reach national standards, this sensor cannot be used
Application of Surface Tension Measurement to Determined Saturated Cooking Oil and Unsaturated Cooking Oil
No full textApplication surface tension measuring tool to distinguish saturated cooking oil and unsaturated cooking oil has been done. This study aims to apply the surface tension measuring tool as an alternative tool for distinguishing saturated cooking oil and unsaturated cooking oil. This study was conducted to distinguish the quality of cooking oil consumption in terms of the number of oil for frying. The method used in this research is the method Torsion Dynamometer conducted in three phases, the first preparation of tools and materials, the second data retrieval, and the third is data processing. The results showed that torsion Dynamometer can be used as a tool to distinguish saturated cooking oil and unsaturated cooking oil. Saturated cooking oil has a value of surface tension γ ± Δγ = (1.6604 ± 0.01448) dyne/cm, while for unsaturated cooking oil has a value of surface tension γ ± Δγ = (1.3492 ± 0.03624) dyne/cm
Study of Odonata Diversity in Kerangas Forest Sukadamai Village and Punai Beach Simpang Pesak, Belitung Timur
No full textBelitung is known as the biggest tin mining in Indonesia. Besides that, Belitung also has a lot of biological resources, that is Odonata (dragonfly). The research was conducted in June 2018 by exploration in Belitung, particularly in Punai beach and Kerangas forest (ex-tin mining) area. There is found 17 type of dragonfly such as Ichtinogomphus decoratus., Macrogomphus sp., Orthetrum sabina., Nannophya pygmaea., Neurothemis fluctuans., Rhodothemis rufa., Rhyothemis phyllis., Urothnemis signata., Pseudagrion coomansi., Ceriagrion cerinorubellum., Acisoma panorpoides., Brachydiplax chalybea., Diplacodes nebulosa., Orthetrum pruinosum., Agriocnemis femina., Agriocnemis pygmaea., and Ischnura senegalensis. All species were conducted to find out the diversity using Shannon-Wiener index and resulting 2,77 index
Torsion Dynamometer Application for Detecting Water Was Contaminated by Detergent
No full textResearch on the Torsion Dynamometer application to water was contaminated by detergent has been carried out. This research aims to develop alternative methods for detecting water was contaminated by detergent. This research is conducted in three stages, including preparation of tools and materials, data collection, and data processing. The results of this research indicate water was contaminated by detergent has the characteristics of surface tension ɣ=(0,256x10-1±1,354x10-4)N/m while, normal water has the characteristics of surface tension ɣ=(0,490x10-1±1,687x10-4)N/m. Therefore, Torsion Dynamometer can be used as an alternative method to distinguish between water was contaminated by detergent and normal water
Effects of Culture Media on Viability of Beauveria Bassiana and Its Pathogenicity Against Coffee Bean Borer (Hyphotenemus Hampei)
No full textCoffee bean borer (Hypothenemus hampei) attacks coffee when it is still in the plantation until it is in the storage that reduce the quality of coffee. To avoid the negative impact of chemical insecticides, biological control is carried out by using entomopathogen Beauveria bassiana. The aims of this research were to study the effects of culture media on viability of B. bassiana and its pathogenicity in controlling H. hampei. Laboratory experiment was arranged in Completely Random Design (CRD). This research used 8 (eight) treatments namely KO: Distilled water, Kk: Lamda Sihalothrin 25 EC (Chemical Insecticide), B1: 10 g/L B. bassiana cultured in rice bran media, B2: 20 g/L B. bassiana cultured in rice bran media, B3: 30 g/L B. bassiana cultured in rice bran media, B4: 10 g/L B. bassiana cultured in corn media, B5: 20 g/L B. bassiana cultured in corn media and B6: 30 g/L B. bassiana cultured in corn media. Each treatment was applied on coffee beans infested with 20 H. hampei and repeated 4 (four) times. The results showed that rice bran media produced the highest number of spores with highest viability. The application of B. bassiana could killed H. hampei. The concentration of 30 g/L of B. bassiana cultured in rice bran media resulted in the fastest mortality (Mortality time and Lethal Time 50%) of H. hampei
Anatomy of Trabeculae Lumbar Vertebrae On a Bats (Megachiroptera)
No full textBats are the only mammals that can fly. Because of their ability to fly, making the tension received by the bat\u27s spine comes from the front and back.Spongy bone, also known as cancellous bone or trabecular bone, is a very porous type of bone found in animals. It is highly vascularized and contains red bone marrow. Spongy bone is usually located at the ends of the long bones (the epiphyses), with the harder compact bone surrounding it. It is also found inside the vertebrae, in the ribs, in the skull and in the bones of the joints. Spongy bone is softer and weaker than compact bone, but is also more flexible. It is characterized by a lattice-like matrix network called trabeculae (Latin for little beam) that gives it its spongy appearance. Observation of trabeculae can be done by removing the flesh, muscles, and all the tissues attached to the lumbar vertebrae bone. Then the lumbar vertebrae was sanded and to know the anatomy of the trabeculae, it was done by observing the lumbraris vertebrae using a binocular microscope and taking pictures using a camera. Then the structure is analyzed. The observations showed that the anatomical structure of the lumbar vertebrae trabeculae in bats are stressed by tension must be withstood, a ligament being as strong for its weight
Histological Structure of the Varanus Salvator Kidney
No full textVaranus salvator is known as the monitor lizard. This animal is a subspecies of endemic Indonesian monitor lizards which is only found in Java, Bali and Nusa Tenggara (except Timor Island). This study aims to determine the histological structure of the monitor lizard (Varanus salvator). The research was carried out for two months starting from September 2019 to October 2019 at the Animal Physics Laboratory and Zoology of UIN Sunan Kalijaga. The method used is the paraffin method. The results of the study were analyzed in a comparative descriptive manner by observation through a microscope and then taken using a camera. Based on the results of studies lizards (Varanus salvator) have distal convoluted tubule, proximal convoluted tubule, glomerulus, medullary ray and bowman’s capsule
The Use of Microsoft Office 365 In Mathematics Learning During The COVID-19 Pandemic
No full textThe Covid-19 virus is currently sweeping the world, including Indonesia. The COVID-19 pandemic has changed various aspects of human life today, especially in the world of education. This requires all elements of education to be able to adapt in the process of learning activities. One of the effective solutions in implementing learning during this pademic period is online learning. Online learning is carried out to activate classes even though schools have been closed considering the time and place they are at risk during this pandemic. The teaching and learning process which is usually done face-to-face in the classroom must now be done through distance learning. This is done to support the government\u27s efforts to reduce the rate of spread of the COVID-19 virus. The government has established policies for studying from home, working from home, and praying at home, for this reason this policy must really be implemented by the entire community. The learning process from home can be done through online or distance learning with the use of information and communication technology, one of which is the use of Microsoft Office 365. This study aims to determine how the use of Microsoft Office 365 in learning mathematics during the COVID19 pandemic, so the results of this study It can be used by teachers as a reference in the use of media for online mathematics learning and teachers become more concerned about the various obstacles experienced by students. The method used in this research is literature study, which examines relevant previous studies and concludes based on the results obtained. The results of this study indicate that there are several obstacles experienced by teachers and students in the use of Microsoft Office 365, namely bad signals, servers down and difficult to access,additional internet quota costs, unlimited teaching hours, lack of communication and socialization between teachers and students, mastery in Microsoft Office 365 usage which is still low. In addition, the use of Microsoft Office 365 learning activities can be varied by using the features provided, such as conducting video conferencing, holding online quizzes, giving assignments, there is also a whiteboard application that can be used when learning with video conferencing via Microsoft Teams, especially in learning mathematics, so that the learning carried out is not much different from face-to-face learning in the classroom, it\u27s just that it is implemented in a different room and virtual. There are still a lot of features in Microsoft Office 365 that can be used in the learning process, so that learning activities are not boring. Then it can reduce costs (fees) for out-of-town teachers and teaching time to be flexibility, making it easier to update teaching materials and check assignments. So it can be concluded that the Covid 19 pandemic has had various impacts on the use of Microsoft Office 365 in learning mathematics
The Evaluation of Polymer-Modified BNA-Blend
No full textAsphalt roads are the lifeblood of people who live in the desert regions in Libya, where the environment there considered the hottest and arid region in the world. So, this harsh environment damages the asphalt road and make it unsafe. High temperature and wheel loads are essential factors that damage the asphalt road. Rutting is one criterion for the failure of this asphalt mixture, which disturbs passengers and increases the maintenance costs of asphalt pavement. This research evaluated the physical and rheological characteristics of BNA-Blend modified with elastomeric polymers. Five types of polymers used, namely, NR (Latex), EVA, SBS, and EPDM at five percentages (2, 4, 6, 8, & 10%) of each kind of polymers. The fluorescent microscopy images show homogenized for NR, EVA, and SBS mixtures, except the EPDM mixture. The physical properties of these polymer-modified BNA-Blend have measured through experimental tests as penetration, softening point, and ductility test, and viscosity test to measure rheological properties. Besides, the influence of the homogeneity of polymer-modified BNA-Blend has investigated. The fluorescent microscopy images show homogenized for NR, EVA, and SBS mixtures, except the EPDM mixture. The rheology test result of polymer changed BNA-Blend increases the softening point, viscosity and decreases the penetration
Implementation of Multilayer Perceptron for Image Classification
No full textThis research proposed to classify images on hands playing rockpaperscissor through hand images. We use Multi Layer Perceptron to classify. There are there class for the classification which are rock class, paper class and scissor class. Dataset for this research obtained from Kaggle Dataset. The number of datasets is 2188 images which are 712 rock images, 726 paper images and 750 scissor images. The Accuracy of this model is very good arround 95%