Pemodelan PLTS Berbasis Paralel untuk Gedung Aula Pondok Pesantren At-Taufiq Al-Islamy Kota Tasikmalaya

Pemodelan Pembangkit Listrik Tenaga Surya (PLTS) Parallel untuk kebuthan energy listrik Gedung Aula Pondok Pesantren At-Taufiq dilakukan dengan menggunakan perhitungan kebutuhan daya yang disesuaikan dengan kebutuhan secara manual. Besaran kebutuhan daya diukur secara langsung di lokasi dan dilakukan per hari, dan dilakukan uji coba simulasi dengan menggunakan metode superposisi. Metode ini dilakukan dengan cara diuji sumber tegangan secara satu persatu lalu digabungkan. pengumpulan data-data yaitu data potensi radiasi matahari dan data beban. Data pengukuran konsumsi beban dalam waktu satu hari. Setelah data dan variabel yang mendukung simulasi. Dan ditentukan konfigurasi dan perencanaan sistem PLTS yang disimulasikan dengan menggunakan Simulink. Pemodelan Simulink yang pertama dilakukan dengan melakukan pengukuran PV. Jenis PV yang digunakan dalam simulasi merupakan berjenis Polycrystalline. Dengan modul PV Canadian Solar CS5A yang memiliki spesifikasi Maximum Power sebesar 200.09 Watt. Memiliki 72 Cell per modul. Serta mampu mengeluarkan tegangan pada titik maksimum sebesar 37,4 Volt. Arus yang mampu dikeluarkan pada modul ini sebesar 5,35 A. Simulasi dijalankan berdasarkan yang tertera pada gambar 4.3 dengan Iradiasi sebesar 1000 m2/hari dan Temperatur sebesar 25oC. Perhitungan dengan metode regresi linear dalam menentukan kebutuhan total daya Gedung Aula Pondok Pesantren At-Taufiq Al-Islamy untuk 10 tahun kedepan didaptkan hasil bahwa dalam 10 tahun kedepan kebetuhan total daya Gedung Aula cenderung mengalami peningkatan sebesar 7,43%, didapatkan hasil pemodelan berupa grafik pengukuran tegangan, arus dan daya dari PLN maupun dari PLTS. Didapatkan grafik pengukuran PLN memiliki tegangan sebear 220 Volt, 18 A, dan 4000 watt. Untuk hasil dari PLTS didapatkan hasil sebesar 180 Volt, 14 A dan 2500 Wat

Cannabinoids in experimental stroke: a systematic review and meta-analysis

Cannabinoids (CBs) show promise as neuroprotectants with some agents already licensed in humans for other conditions. We systematically reviewed CBs in preclinical stroke to guide further experimental protocols. We selected controlled studies assessing acute administration of CBs for experimental stroke, identified through systematic searches. Data were extracted on lesion volume, outcome and quality, and analyzed using random effect models. Results are expressed as standardized mean difference (SMD) with 95% confidence intervals (CIs). In all, 144 experiments (34 publications) assessed CBs on infarct volume in 1,473 animals. Cannabinoids reduced infarct volume in transient (SMD −1.41 (95% CI −1.71), −1.11) P<0.00001) and permanent (−1.67 (−2.08, −1.27), P<0.00001) ischemia and in all subclasses: endocannabinoids (−1.72 (−2.62, −0.82), P=0.0002), CB1/CB2 ligands (−1.75 (−2.19, −1.31), P<0.00001), CB2 ligands (−1.65 (−2.09, −1.22), P<0.00001), cannabidiol (−1.20 (−1.63, −0.77), P<0.00001), Δ9-tetrahydrocannabinol (−1.43 (−2.01, −0.86), P<0.00001), and HU-211 (−2.90 (−4.24, −1.56), P<0.0001). Early and late neuroscores significantly improved with CB use (−1.27 (−1.58, −0.95), P<0.00001; −1.63 (−2.64, −0.62), P<0.002 respectively) and there was no effect on survival. Statistical heterogeneity and publication bias was present, median study quality was 4 (range 1 to 6/8). Overall, CBs significantly reduced infarct volume and improve functional outcome in experimental stroke. Further studies in aged, female and larger animals, with other co-morbidities are required

Notational analysis on tactical passing skills used by collegiate players in an indoor hockey masum tournament

The study aimed to determine the relationship of frequency for wall, diagonal and square passing with the performance for men and women team. Eighteen teams (man = 11; woman = 7) involved in this study. The Pearson correlation coefficient was used to examine the relationship between frequency of use wall pass, diagonal pass and square pass with team performance. Results of the study showed a significant relationship between the frequency of the use of passes to the achievement of the team in both categories. The significant value of wall pass, diagonal pass and square pass for men and women teams is (p &lt; 0.05). Positive relationship indicated team that use more wall, diagonal and square passing was a successful team in tournament. The findings for this study could be used by trainers and individuals who involved in the player development and coaches education.Keywords: indoor hockey; passing skills; wall pass; diagonal pass; square pas

Modeling bearing temperature of DC machine in no-load condition using transfer function

Bearing is a critical component in an electrical machine which get continuous monitoring and included in scheduled predictive maintenance. The temperature of the bearing is a valuable information that may allow early fault detection, lubrication assessment, and overloading indication of the system driven. Using the temperature measurement of the bearing and comparing it to a baseline temperature in real time will allow early warning of any eventual fault. This paper proposes a thermal model for the bearing in a brushed DC machine, developed using transfer function that will predict the temperature increase contributed specifically by speed variation. The transfer function was found by identification using experimental temperature of the bearing at a speed ranging from 20 to 100% of its rated speed while being at no load. The result shows that the first-order transfer function was found to be the best with a model identification MSE of less than 0.23. The slight variation on the poles of the system indicates that the thermal system of the bearing inside an electrical machine does not obey exactly the LTI hypothesis

Scalability challenges in healthcare blockchain system - a systematic review

Blockchain technology is a private, secure, trustworthy, and transparent information exchange performed in a decentralised manner. In this case, the coordination and validation efforts are simplified as the records are designed to update regularly and there is no difference in the two databases. This review focuses on how the blockchain addresses scalability challenges and provides solutions in the healthcare field through the implementation of blockchain technology. Accordingly, 16 solutions fell under two main areas, namely storage optimization and redesign of blockchain. However, limitations persist, including block size, high volume of data, transactions, number of nodes, and protocol challenges. This review consists of six stages, namely identification of research question, procedures of research, screening of relevant articles, keywording based on the abstract, data extraction, and mapping process. Through Atlas.ti software, the selected keywords were used to analyse through the relevant articles. As a result, 48 codes and 403 quotations were compiled. Manual coding was performed to categorise the quotations. The codes were then mapped onto the network as a mapping process. Notably, 16 solutions fell under two main areas, namely storage optimization and redesign of blockchain. Basically, there are 3 solutions compiled for storage optimization and 13 solutions for the redesign of the blockchain, namely blockchain modelling, read mechanism, write mechanism, and bi-directional network

Inefficient Processing Time as Hidden Time Loss in Assembly Operations

Hidden Time Loss (HTL) occurs along the production processes that have a significant effect to productivity. Overall Equipment Efficiency (OEE) is the most popular performance measurement tool used in the production line. However, OEE doesn’t really fit in measuring operation performance of manual assembly process and semi-auto assembly process. In this case, there would be the amount of HTL have occurred along the assembly processes that become critical when to involve high product variety in the same production line. Thus, the purpose of this paper is to introduce Inefficient Processing Time (IPT) as one of the component of Time Loss Measures (TLM) in the manual assembly process and semi-auto assembly process. The structure of IPT is developed through a thorough literature study on manufacturing operations and its performance measures. The IPT structure is validated by using case study at five automotive manufacturing companies. The results show that the IPT can contribute to HTL in the manual assembly process and semi-auto assembly process

Experimental Study On Noise Source Identification Of Split Unit Air Conditioner System

This paper presents the procedures and the results of noise source at the split unit air conditioner system. Noise in split unit air conditioning system is a frequent problem for the air conditioner manufactures. Split unit air conditioners have an indoor unit and an outdoor unit connected by communication pipes. Noise can reduce the efficiency and performance of the air conditioner. In order to identify and analysis of noise at air conditioner system, experimental have been done using sound intensity mapping method. The investigation was carried out by varying the parameter which is the fan speed and temperature at air conditioner. In order to identify where the noise source comes from, a grid rig had been build to get the noise location and their rating by located the microphone at the rig point. The signal from the probe will be analyze by using Pulse LabShop software. The results from the noise were showed in noise mapping with different color which indicates the different level of noises from different location. The highest noise sound levels occur at the front side of air conditioner which is at the fan that is about 74.784dB. The second highest noise sound level is occur at the right side which is at the compressor about 72.115dB. It can be concluded that sound power level will increase as higher as fan speed at the lowest temperature of the air conditioner

FAKTOR PENDORONG, PROSES DAN TANTANGAN TRANSFORMASI DIGITAL PADA USAHA MIKRO, KECIL DAN MENENGAH: TINJAUAN PUSTAKA SISTEMATIS

As one of the backbones of the economy, Micro, Small and Medium Enterprises (MSMEs) aim to grow and develop their businesses in order to build a national economy based on just economic democracy. In various countries, MSMEs play an important role in job creation, productivity and economic growth. For the sake of sustainability and competitive advantage in MSMEs in this industrial era 4.0, digital transformation needs to be implemented. This paper aims to study the ongoing digital transformation of MSMEs in order to gain a richer understanding of the drivers, processes and challenges of digital transformation. There are 40 recent studies on digital transformation in MSMEs from 2016 to 2020 in the form of systematic literature reviews. The results of the study conducted were that MSMEs had different factors, processes and challenges according to the characteristics of each SMEs. The results of the research are practically an informative indicator for policy makers, information service providers, researchers and SMEs to evaluate the elements of digital transformation that have been running on MSMEs. Keywords: Digital Transformation, SMEs, MSMEs

A comparative study on different BMI category and physical fitness health related component of sedentary male youth in Terengganu

This study aims to compare the physical fitness health related component on three different BMI category (underweight-UG; normal-NG and obese-OG) of sedentary male youth in Terengganu. 223 sedentary male youth of Terengganu (age 17.4±1.9) categorize into three groups based on BMI index value. Five physical fitness health related component (VO2max, one minute sit up and push up, V sit and reach and 20 meter speed) are measured in all groups. Multivariate Analysis of variance revealed that there is significant different between three BMI groups on physical fitness health related components F (10, 434) = 6.24, P &lt; 0.0001. Thus, the current study shows an evidence to improve health, enhancement in each physical fitness health related components must be concentrated instead of correcting BMI alone.Keywords: BMI; physical fitness health related; obesit

A comparative analysis of juggling skill between Sepak raga and Bulu ayam

The uses of sepak takraw’s ball for daily training for children might cause injury, while contact between the foot and ball due to hard and heavy structure. This study aims to examine the differences of kinematic juggling between sepak raga and bulu ayam. Eight participants within the age 13.63 (±0.52) years old were asked to perform 20 trials of sepak sila and sepak kuda juggling using raga ball and bulu ayam. Digital Motion Analysis software was used to analyze the kinematics parameters. One-way repeated measure ANOVA was implemented to examine the differences between the sepak raga and bulu ayam. The finding shows that there are no significant differences of kinematic juggling between sepak raga and bulu ayam in sepak sila juggling skills as well as sepak kuda juggling skills (p > 0.05). The young athlete could choose either raga ball or bulu ayam for skill acquisition depending on their comfort