Electronic Kit Research Articles

Electronic Kit Controller to Increase a Motorcycle Engine's Power and Torque

Electronic Kit Controller to Increase a Motorcycle Engine's Power and Torque

Sköpunarsmiðjur í menntun ungra barna: Reynsla og viðhorf starfsfólks skóla, safna og sköpunarsmiðja

Í þessari grein er fjallað um þekkingu, reynslu og viðhorf til sköpunarsmiðja (e. makerspaces) meðal kennara ungra barna (3-8 ára) í leik- og grunnskólum, fagfólks á söfnum og í sköpunarsmiðjum. Upplýsingum var safnað með rafrænni könnun í tengslum við Evrópuverkefnið MakEY (e. Makerspaces in the early years: Enhancing digital literacy and creativity)1 sem er samstarfsverkefni fjölmargra háskóla og stofnana innan Evrópu og utan. Nokkrar íslenskar stofnanir tóku þátt í verkefninu.2 Gögnum var safnað meðal áðurnefndra hópa sumarið 2017 (n=254).3 Í ljós kom að minnihluti kennara (17%) en meirihluti safnafólks (72%) hafði áður heyrt um hugtakið. Um 28% safnafólks hafði reynslu af að nota slík rými og 13% höfðu skipulagt sköpunarsmiðjur en sambærilegar tölur hjá kennurum voru eingöngu 15 og 7%. Um helmingur kennara og safnafólks taldi gott aðgengi á sínum vinnustöðum varðandi vélbúnað til að búa til stafrænar afurðir. Álíka algengt var að hentug rými væru til staðar hjá kennurum og rúmur þriðjungur safnafólks sagði gott aðgengi að forritunarbúnaði. Aðgangur að verkfærasettum sem hentuðu í samþættum verkefnum var til staðar hjá mun færri og aðgangur að þrívíddarprenturum eða geislaskerum var fátíður. Áhugi var hjá stórum hluta safnafólks og kennara á þjálfun eða námskeiðum í tengslum við sköpunarsmiðjur og meirihluti svarenda (73% kennara og 60% safnafólks) taldi sköpunarsmiðjur samrýmast vel sýn sinni á nám og kennslu. Sköpunarsmiðjur geta gegnt lykilhlutverki í mótun menntunar á Íslandi í því tæknilega landslagi sem er í stöðugri þróun, þar sem stafrænt læsi, „germenning“ (e. makerculture) og forritunarhæfni leika aðalhlutverk ásamt faglegri starfsþróun þeirra sem mennta börn og styðja við nám þeirra og þroska. MakEY verkefnið og fræðilegt framlag þess er mikilvægt innlegg þar sem leitast er við að skoða stöðuna á byrjunarreit.

Self-care practice and associated factors among hypertensive patients in public health facilities in Harar Town, Eastern Ethiopia: A cross-sectional study.

Background:Self-care practice is the activity that a hypertensive patient undertakes intending to improve their health. Poor self-care practice leads to uncontrolled hypertension. Therefore, strategies designed to prevent and control hypertension-related death, disability, and morbidity should consider the level of the patient’s self-care practice and risk factors. This study assessed self-care practice and associated factors among hypertensive patients in public health facilities of Harar Town in eastern Ethiopia.Method:An institution-based cross-sectional study was conducted among 398 randomly selected hypertensive patients from 25 March 2019 to 16 April 2019. Pretested structured questionnaires adapted from validated tools were used to collect data from participants using electronic Open Data Kit software through face-to-face exit interview. Data were analyzed by SPSS version 24. Bivariable and multivariable logistic regression analyses were conducted to identify factors associated with self-care practice. Adjusted odds ratio with 95% confidence interval was used to report association and the significance was declared at p-value < 0.05.Results:Level of good self-care practice was 29.9% (95% confidence interval: 25.3% and 34.7%). Age ⩾ 60 years (adjusted odds ratio = 3.4, 95% confidence interval: 1.2 and 9.3), formal education (adjusted odds ratio = 2.3, 95% confidence interval: 1.3 and 4.2), absence of comorbidities (adjusted odds ratio = 1.8, 95% confidence interval: 1.1 and 3.1), adequate knowledge about hypertension (adjusted odds ratio = 4.7, 95% confidence interval: 2.5 and 8.8), good social support (adjusted odds ratio = 2.7, 95% confidence interval: 1.6 and 4.7), and being khat abstainer (adjusted odds ratio = 1.9, 95% confidence interval: 1.1 and 3.5) were significantly associated with good self-care practice.Conclusion:The prevalence of good self-care practice was low. In this study, good self-care practice was significantly associated with age, formal education, comorbidities, knowledge about hypertension, social support, and current khat chewing condition. Regular check-up and follow-up of patients’ compliance with self-management protocol, and more emphasis should be given to identify factors that potentially impeding patients’ adherence to hypertension self-management protocol.

TEACHING ENGINEERING SOFTWARE USING SELF-PACED MODULES

This paper presents an approach to teaching SolidWorks, Matlab and Arduino using self-paced modules. Each module consists of self-guided lessons scheduled over a consecutive four-day period of 26-28 contact hours. The class takes place in a teaching computer laboratory with about 30 seats, with a basic Arduino electronics kit provided on each computer station. The instructor and teaching assistants provide brief demonstrations through the day and supports students individually as they complete lessons at their own pace. Student performance and feedback suggests this is an effective method for teaching SolidWorks, Matlab and Arduino.

A highly sensitive graphene oxide based label-free capacitive aptasensor for vanillin detection

Biosynthetic production of vanillin via microbial biotransformation offers a low-cost alternative for manufacturers to meet the consumer demands for natural vanillin. However, identifying the high vanillin-producing microbial strains among multitudinous samples using the current analytical techniques such as liquid chromatography (LC) and mass spectroscopy (MS) is time consuming, cumbersome and costly. Here, we propose an alternative low-cost and rapid aptamer-based capacitive assay for sensitive and selective vanillin recognition based on the preferential binding affinity and stability of the aptamer-vanillin complex. This redox-free approach measures the changes in non-faradaic capacitance of transducing graphene-oxide (GO) activated gold electrodes immobilized with vanillin-specific aptamer. Aptamer-vanillin interaction on the GO surface alters the aptamer conformation causing surface charge redistribution detected via capacitance-frequency characteristics. The aptasensor showed a wide dynamic detection range of 10 pM-10 nM and a low limit of detection (LOD) of ~9.91 pM, which is the best reported so far. Finally, validation of the capacitive aptasensing against high-performance LC (HPLC) reference containing vanillin dissolved in a complex M9 medium with interfering compounds (ferulic acid and glycerol), to mimic typical microbial biotransformation, demonstrated good sensitivity and selectivity. The successful proof-of-concept can be translated to high-throughput electronic multi-analyte screening kits supplementary to existing analytical tools.

Development of an Electronic Educational Kit with Android Application That Test Student Knowledge in Series and Parallel Resistor for Electrical Circuit (Res-Circuit Quiz Board)

One of the important subject inElectrical Engineering course is Electrical Circuit. The subject is known to be challenging as this is the first time student being expose to the Electrical Engineering subject. In order to address this, this paper is proposing an educational board, named Res-Circuit Quiz Board. The educational board is designed to test student’s knowledge in series and parallel resistor connection for subject Electrical Circuit. An android based application is designedas interface for the quiz board to connect to through Bluetooth. The educational quiz board will give feedback to student based on the circuit connection done by the student. The effectiveness of the educational quiz board is measured using a survey done to the target audience. The result shows positive feedback from the respondents.

Enabling Designers to Generate Concepts of Interactive Product Behaviours: A Mixed Reality Design Approach

AbstractTo design interactive behaviours for their products designers/makers have to use high fidelity tools like ‘electronic prototyping kits’, involving sensors and programming to incorporate interactions in their products and are dependent on availability of hardware. Not every designer is comfortable using such tools to ideate and test their concept ideas, eventually slowing them down in the process. Thus, there is a need for a design tool that reduces dependence on complex components of such tools while exploring new concepts for product design at an early stage. In this work, we propose a Mixed Reality system that we developed to simulate interactive behaviours of products using designed visual interaction blocks. The system is implemented in three stages: idea generation, creating interactions and revision of interactive behaviours. The implemented virtual scenario showed to elicit high motivation and appeal among users resulting in inventive and creative design experience at the same time. As a result, designers will be able to create and revise their interaction-behavioural design concepts virtually with relative ease, resulting in higher concept generation and their validation.

Physics – IT based international student exchange program

International student exchange programs are an integral part of the life of high school students across Europe. The popularity of these programs is understandable because the participating students can not only learn foreign languages, but they can also learn new cultures and make friends. The motivating force of this popularity was used in our program to bring even those students closer to science and engineering, who perhaps would not ever get closer to these areas. In our paper, we present a “project week” alike event, in which we used a simple, manageable, affordable and programmable electronic kit – Arduino – for the development of relevant competencies of our students and for the knowledge of physics and information technology.

Effects of pre-event massage on anxiety among Nigeria national team football players: a pilot study

PurposeThe purpose of the study was to examine the effect of pre-event massage on anxiety among Nigeria national team football players during the World Cup matches. As secondary outcomes, the effects of massage on blood pressure (BP) and heart rate (HR) were analysed.MethodsOverall, 17 World Cup players had massage both less and more than 24 hours prior to matches. Holey and Cook massage protocol was used. The Mental Readiness Form version 3 (MRF-3) was applied to assess anxiety level while an electronic BP monitoring kit served to monitor BP and HR before and after massage. Inferential statistic of paired t-test was carried out for the effect of massage on BP and HR.ResultsThe result of the study showed a significant difference in anxiety after massage with &lt;i&gt;p&lt;/i&gt; &lt; 0.05 at periods less and more than 24 hours before the matches. There was also a significant difference between the pre- and post-massage BP and HR at a period less and more than 24 hours before the matches (&lt;i&gt;p&lt;/i&gt; &lt; 0.05).ConclusionsPre-event massage before World Cup matches reduced anxiety among Nigeria national team football players.

Development of an Electronic Kit for detecting asthma in Human Respiratory System

In this paper, a prototype of a carbon dioxide (CO2) measurement device is designed to detect and used to monitor asthma patients. Nowadays, capnogram device is widely used in monitoring asthma and asthma related medical services. However, capnogram is very costly and unaffordable for patient especially those who are in low income household. Thus, the proposed device is cost effective, affordable, and produced to detect and monitor the severity of asthma. Meanwhile, flow meter will cause patient to have chest pain as they needed maximum effort to blow in the device. To overcome these limitations, this prototype electronic kit is easy to use and suitable for all range patients. This prototype electronic kit consists of MH-Z14A carbon dioxide (CO2) sensor to detect the concentration of carbon dioxide from the user exhaled air. Arduino microcontroller is used to process the data while TFT Display shield is applied for data presentation. In addition, HC-06 Bluetooth module is used to communicate with PC for further analysis of the captured graph. This device was tested with 3 asthmatics and 3 normal users. The results showed that asthmatic user has a different graph pattern compared with normal user and these graphs are clearly differentiated on the device TFT screen. Asthmatic user produces “shark fin”-like pattern whereas normal user produces “square wave”-like pattern. This device has successfully produced distinguished-patterns difference between asthmatic and normal user; therefore, it is suitable for asthma monitoring.

Basic Arduino Programming Training For High School Students

Electronic devices have become a part of human life today that can not be ignored. Community Service Program conducted by Prodi Electrical Engineering, Maranatha Christian University aims to increase knowledge, increase interest, form the ability of cooperation, improve creativity and improve the fighting power of high school students on the operation of electronic devices, in the form of arduino programming training . Arduino is an open source electronic kit specifically designed as a controller that regulates the working process of electronic circuits. The method used in this PKM is Participatory Action Research (PAR) in the form of lecture method to describe the material that has been prepared by PKM team, the method of practice in the form of Arduino programming and assembling the electronic component connected with Arduino, the method of mentoring when the students do the programming and stringing electronic components, and discussion methods in the form of inter-group cooperation to solve the case given. The results of this training can be a provision for high school students in the form of programming skills, the ability to assemble electronic components, the ability to work with groups to solve existing problems, and increase confidence in designing and operating electronic devices

Making sense and nonsense: Comparing mediated discourse and agential realist approaches to materiality in a preschool makerspace

Two approaches to materiality (i.e. mediated discourse and agential realism) are compared to explore their usefulness in tracking literacies in action and artefacts produced during a play and design activity in a preschool makerspace. Mediated discourse analysis has relied on linguistic framing and social semiotics to make sense of multimodality. Can a multimodal lens grounded in embodied histories of meaning-making unpack sensory exploration, silly repetition and free-wheeling nonsense in children’s playdough play? Barad’s agential realism seems promising for unpacking the sensory and the emergent produced in the materiality, fluidity and messiness of entangled bodies and things in a makerspace. We compare key constructs of mediated discourse and agential realism, comparing interaction and intra-action in video excerpts from two weeks of play with playdough electronics kits in three early childhood classrooms in a US university childcare centre. Mediated discourse analysis of multimodality identified collaborative interaction among players in a small group and tracked a collective flow of materialized knowledge that moved through children’s sharing and collaboration. Agential realism tracked intra-actions among bodies, materials and spaces as transitory becomings and undoings that rupture definitions of sense-making as strategic design that manipulates materials into artefacts or as play that resemiotizes materials into roles and props in dramatized narratives.

Stitching Codeable Circuits: High School Students\u2019 Learning About Circuitry and Coding with Electronic Textiles

Learning about circuitry by connecting a battery, light bulb, and wires is a common activity in many science classrooms. In this paper, we expand students’ learning about circuitry with electronic textiles, which use conductive thread instead of wires and sewable LEDs instead of lightbulbs, by integrating programming sensor inputs and light outputs and examining how the two domains interact. We implemented an electronic textiles unit with 23 high school students ages 16–17 years who learned how to craft and code circuits with the LilyPad Arduino, an electronic textile construction kit. Our analyses not only confirm significant increases in students’ understanding of functional circuits but also showcase students’ ability in designing and remixing program code for controlling circuits. In our discussion, we address opportunities and challenges of introducing codeable circuit design for integrating maker activities that include engineering and computing into classrooms.

4-335 「考えさせる」創成教育の取り組み : 中学生がわかる電子工作キットの製作((04)工学教育の個性化・活性化-VI,口頭発表)

4-335 「考えさせる」創成教育の取り組み : 中学生がわかる電子工作キットの製作((04)工学教育の個性化・活性化-VI,口頭発表)

Formononetin exhibits anti-hyperglycemic activity in alloxan-induced type 1 diabetic mice.

The aim of this study was to investigate the anti-hyperglycemic activity and mechanism of formononetin in alloxan-induced type 1 diabetic mice by determining its effect on some diabetes-related indices as described below. Body weight, fasting blood glucose, hepatic glycogen, serum insulin, and serum glucagon were determined by electronic scales, glucometer, and ELISA kits. Fas, Caspase-3, pancreatic and duodenal homeobox-1 , insulin receptor substrate 2, glucokinase and glucose transporter 2, mRNA and proteins levels in pancreas tissue, and glucokinase and glucose-6-phosphatase mRNA, and proteins levels in liver tissue were detected by fluorogenic quantitative-polymerase chain reaction and Western blot assays. The results indicated that formononetin (5, 10, and 20 mg/kg; oral administration) reversed the alloxan-induced increase of some indices (fasting blood glucose level and Fas and Caspase-3 mRNA and proteins levels in pancreas tissue) and reduction of some indices (body weight gain, oral glucose tolerance, insulin activity, hepatic glycogen level, pancreatic and duodenal homeobox-1, insulin receptor substrate 2, glucokinase and glucose transporter 2, mRNA and proteins levels in pancreas tissue, and glucokinase mRNA and protein levels in liver tissue). The glucagon level and glucose-6-phosphatase mRNA and protein levels in liver tissue were not affected by the drugs administration. In conclusion, formononetin exhibited anti-hyperglycemic activity in alloxan-induced type 1 diabetic mice by inhibiting islet B cell apoptosis and promoting islet B cell regeneration, insulin secretion, hepatic glycogen synthesis, and hepatic glycolysis.

Gender Variation And The Impact Of Gas Flarig On Cardiopulmondry Parameters Of Residents In Gas Flaring Communities In South-South Nigeria

The study determined gender variation on cardiopulmonary parameters-blood pressure, pulse rate, respiratory rate and peak expiratory flow rate of residents in gas flaring communities compared with non-gas flared communities. The ex post facto study carried out using a stratified random sampling method involving five hundred and four (504) residents in the gas flaring communities and five hundred (504) in the non - gas flaring communities comprising 564 males and 444 females. Samples for this study were taken from five states in the South-South geopolitical states of Nigeria. The electronic blood pressure kit was used to measure blood pressure and respiratory rate while the peak flow rate was measured with a peak flow metre and respiratory rate was measured manually. Data generated were expressed as mean ± SD. Significance difference between means was determined by student t-test and one-way analysis of variance (ANOVA). SPSS 20 software was used for statistical analysis. A level of p≤0.05 was accepted as significant. Findings indicate that mean diastolic pressure was higher in males (10.96%) than females (5.05%). The pulse rate (36.07%) and the respiratory rate (19.38%) of the female residents in the gas flared environments was significantly (p&lt;0.05) higher than that of the male residents (13.53% and 13.64% respectively), with the female subject more impacted. The mean Peak Expiratory Flow Rate was higher in male (11.06%) residents with females (9.7%) more impacted. This study has shown that gender variation impacted on cardiopulmonary parameters of residents in gas flaring communities in south-south Nigeria

A Lab Assembled Microcontroller-Based Sensor Module for Continuous Oxygen Measurement in Portable Hypoxia Chambers.

BackgroundHypoxia-based cell culture experiments are routine and essential components of in vitro cancer research. Most laboratories use low-cost portable modular chambers to achieve hypoxic conditions for cell cultures, where the sealed chambers are purged with a gas mixture of preset O2 concentration. Studies are conducted under the assumption that hypoxia remains unaltered throughout the 48 to 72 hour duration of such experiments. Since these chambers lack any sensor or detection system to monitor gas-phase O2, the cell-based data tend to be non-uniform due to the ad hoc nature of the experimental setup.MethodologyWith the availability of low-cost open-source microcontroller-based electronic project kits, it is now possible for researchers to program these with easy-to-use software, link them to sensors, and place them in basic scientific apparatus to monitor and record experimental parameters. We report here the design and construction of a small-footprint kit for continuous measurement and recording of O2 concentration in modular hypoxia chambers. The low-cost assembly (US$135) consists of an Arduino-based microcontroller, data-logging freeware, and a factory pre-calibrated miniature O2 sensor. A small, intuitive software program was written by the authors to control the data input and output. The basic nature of the kit will enable any student in biology with minimal experience in hobby-electronics to assemble the system and edit the program parameters to suit individual experimental conditions.Results/ConclusionsWe show the kit’s utility and stability of data output via a series of hypoxia experiments. The studies also demonstrated the critical need to monitor and adjust gas-phase O2 concentration during hypoxia-based experiments to prevent experimental errors or failure due to partial loss of hypoxia. Thus, incorporating the sensor-microcontroller module to a portable hypoxia chamber provides a researcher a capability that was previously available only to labs with access to sophisticated (and expensive) cell culture incubators.

Locally Fabricated Electronic Drum Trigger-Module

Different electronic gadgets and devices nowadays exist and develop rapidly with the latest trends and technology. Gadgets have specific functions based on people's interests or needs in communication, transportation, music, and entertainment. The electronic drum is one of these gadgets that music enthusiasts would surely want to have. The study aimed to fabricate or assemble an electronic drum using raw materials which is locally available. The study used the experimental and project method. It was accomplished by fabricating the edrum module based on the circuit design of Admir Salahovic. The processes include the use of the toner transfer method in making the Printed Circuit Board; programming the microcontroller; the construction of the different triggers with the use of locally available materials and testing the device's functionality. The study concludes that the locally fabricated electronic drum trigger-module found on the internet as a do-it-yourself project using locally available materials works; it answers the queries of how electronic musical instrument works and what it is made of. The researcher and students are capable to build complicated electronic devices with the theories and skills learned behind it. It is recommended to enhance some of the trigger pads for a professional-like electronic drum kit.

電子工作キットで学ぶ超音波の力学的作用

電子工作キットで学ぶ超音波の力学的作用

An Analysis for 2.4mm-2.4mm RF Connector Insertion Loss Measure From 45MHz Until 50GHz by Using Electronic Calibration Module and Mechanical Calibration kits in a Network Analyzer

This paper is a study regarding the Radio Frequency (RF) connector characteristic (insertion loss) in applications at 50 Ω Impedance from 45MHz until 50GHz by using the Network Analyzer and two type of calibration kits that are Electronic Cal (E-Cal) Module and Mechanical Calibration (M-Cal) Kits. RF connector will always assume as idle (lossless) in a calibration system. It can exist in varying types in dimension and length (delay line). The purpose of this study is to determine the significant and impact of the RF connector loss against its frequency range. The objective is to gain more knowledge about the RF connector characteristic, network analyzer and the two type of calibrations kits setting and usage. One port and full two ports calibration techniques are used to determine the loss of RF connector. This study will analyze the differences between both techniques (one port and full two-port calibration) and calibration kits (E-Cal and M-Cal kits) in the RF connector insertion loss.