Portal Jurnal Politeknik Negeri Semarang
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IMPLEMENTASI PROVISIONING ROUTER BERBASIS WEB
Get PDF Abstrak Provisioning merupakan suatu aktivitas dalam network management yang berfokus pada penambahan sumberdaya infrastruktur jaringan baru dengan cara menambahkan router serta melakukan implementasi konfigurasi pada perangkat router ataupun perangkat jaringan. Penyediaan konfigurasi provisioning router pada PT. Indonesia Comnets Plus SBU Regional Jawa Bagian Tengah saat ini masih menggunakan cara manual yaitu dengan melakukan SSH ataupun telnet ke router perangkat jaringan dan melakukan konfigurasi satu per satu. Tujuan dari penelitian ini yaitu membangun suatu infrastruktur untuk perangkat router dengan aplikasi web agar network administrator lebih mudah melakukan konfigurasi dan mengoptimalkan waktu konfigurasi router serta operasi terhadap perangkat-perangkat router dalam satu sistem kontroller yang berbasis web. Pada penelitian ini menggunakan metode Action Research. Metode penelitian Action Research meungkinkan untuk melakukan interpretasi, mendeskripsikan, serta menjelaskan suatu kondisi pada satu waktu dengan melakukan intervensi yang ditujukan untuk partisipasi serta perbaikan. Penelitian ini menggunakan bahasa pemrograman python dengan framework utamanya yaitu Django. Library yang digunakan yaitu Paramiko diterapkan pada suatu infrastruktur perangkat jaringan. Hasil dari penelitian adalah aplikasi kontroller web untuk melakukan provisioning pada perangkat router cisco dan mikrotik. Kata kunci : Provisioning Jaringan, Phython, Django, Paramiko Abstract Provisioning is an activity in network management that focuses on adding new network infrastructure resources by adding routers and implementing configurations on router devices or network devices. Provisioning router provisioning configuration at PT Indonesia Comnets Plus SBU Regional Jawa Bagian Tengah still uses a manual method, namely by doing SSH or telnet to the network device router and configuring it individually. This research aims to build an infrastructure for router devices with web applications so that network administrators can more easily configure and optimize router configuration time and operations on router devices in one web-based controller system. This research is the Action Research method. The Action Research research method makes it possible to interpret, describe, and explain a condition simultaneously by intervening aimed at participation and improvement. This research uses the Python programming language with the main framework, Django. The library used, Paramiko, is applied to a network device infrastructure. The result of the research is a web controller application for Provisioning on Cisco and Mikrotik router devices.
RANCANG BANGUN SISTEM KONTROL DAN MONITORING BUDIDAYA JANGKRIK MENGGUNAKAN PROTOKOL ESP-NOW BERBASIS INTERNET OF THINGS
Get PDFAbstrakPemantauan jarak jauh telah menjadi model pertanian saat ini, tak terkecuali di industri budidaya jangkrik. Internet of Things menjadi salah satu alternatif dalam pengembangan model pertanian cerdas. Suhu dan kelembaban merupakan parameter utama dalam persentase keberhasilan budidaya jangkrik. Teknologi nirkabel protokol EspNow dengan aplikasi Blink menjadi salah satu solusi. Protokol EspNow digunakan sebagai pengiriman data antar mikrokontroler, tersusun dari 3 bagian yaitu Node Sensor, Gateway, dan User Apps. Node sensor ESP8266-12F sebagai slave terintegrasi dengan sensor DHT21 untuk akusisi data suhu dan kelembaban. Node sensor mengirimkan data menuju ESP32 sebagai master dan Gateway. Gateway meneruskan data menuju server dan aplikasi Blynk sebagai sarana antarmuka. Node sensor juga dirancang melakukan kendali kipas DC dan pompa DC dengan konsep misting. Hasil pengujian persentase keberhasilan pengiriman data dari 4 node sensor yaitu 100%, persentase waktu pengiriman data yaitu 30ms, persentase ketepatan sensor suhu yaitu 95%, dan persentase ketepatan sensor kelembaban yaitu 78%.Kata kunci : Internet of Things, Esp-Now, Slave, Master, Blynk.AbstractRemote monitoring has become the current agricultural model, including in the cricket farming industry. The Internet of Things has emerged as one alternative in developing smart farming models. Temperature and humidity are key parameters in the success rate of cricket farming. Wireless technology using the Esp-Now protocol with the Blink application serves as one solution. The Esp-Now protocol is utilized for data transmission between microcontrollers, consisting of three parts: Node Sensor, Gateway, and User Apps. The ESP8266-12F sensor node acts as a slave integrated with the DHT21 sensor for temperature and humidity data acquisition. The sensor node sends data to the ESP32 master and Gateway. The Gateway forwards data to the server and Blynk application as the interface. The sensor node is also designed to control DC fans and DC pumps with a misting concept. Testing results show a 100% success rate in data transmission from the four sensor nodes, a data transmission time percentage of 30ms, a temperature sensor accuracy percentage of 95%, and a humidity sensor accuracy percentage of 78%. Keywords : Internet of Things, Esp-Now, Slave, Master, Blynk
Validitas Persamaan Reynolds Terhadap Efek Inersia dan Slip dalam Pemodelan Pelumasan Hidrodinamik pada Permukaan Parallel Bearing Bertekstur
Get PDFThrust bearing merupakan komponen yang sangat penting pada elemen mesin untuk menahan beban aksial saat mesin sedang berputar. Berbagai rekayasa telah dilakukan untuk mendapatkan performa pelumasan yang terbaik. Saat ini, tekstur pada thrust bearing telah dikembangkan pada sistem pelumasan hidrodinamik. Modifikasi permukaan berupa pelapisan hidrofobik juga dapat memberikan dampak pada performa pelumasan hidrodinamik. Metode penyelesaian yang digunakan menjadi perlu dikaji secara lebih mendalam karena efek inersia yang terjadi pada aliran pelumasan. Pada penelitian ini, validitas modifikasi persamaan Reynolds dibandingkan dengan penyelesaian menggunakan persamaan Navier-Stokes yang mengakomodir adanya inersia. Pendekatan computational fluid dynamic (CFD) juga digunakan dalam pengujian ini. Hasil penelitian menunjukkan bahwa pada konfigurasi Re = 0,280 dan λ = 250 tanpa menerapkan slip, efek yang diperoleh terhadap load support tidak terlalu berarti. Hal ini menunjukkan bahwa kedua persamaan dapat digunakan untuk kondisi ini. Akan tetapi terjadi perbedaan nilai load support yang signifikan yaitu sebesar 5,456% ketika slip dan inersia diterapkan. Maka, pada kondisi tersebut, persamaan N-S sangat dianjurkan untuk digunaka
Analisis Tegangan pada Cangkang Helm Keamanan dengan Variasi Jenis Bahan
Get PDFCangkang helm adalah bagian dari safety helmet yang berfungsi sebagai pelindung utama. Banyak model safety helmet yang terjual dilapangan masih menggunakan bahan polimer sebagai bahan utama, dan masih jarang menggunakan material komposit sebagai bahan pembuatnya. Sehingga pada penelitian ini akan dilakukan kajian jenis material apakah yang sesuai untuk digunakan pada safety helmet selain polimer. Material yang digunakan pada penelitian ini adalah komposit epoksi/rami, komposit epoksi/goni, komposit e-glass fibre/epoksi, dan polimer polypropylene. Pemodelan safety helmet dilakukan menggunakan perangkat lunak Solidworks 2022, sedangkan untuk analisis tegangan dilakukan pada model menggunakan perangkat lunak Ansys 18.1. Tujuan pada penelitian ini adalah menemukan bahan pembuat safety helmet yang terbaik dengan dasar pada margin of safety (MS). Tujuan tersebut merupakan salah satu kebaharuan pada penelitian ini selain desain cangkang safety helmet baru yang beda dari yang di pasaran. Kondisi batas yang menjadi beban muatan model adalah gaya vertikal dari atas permukaan benda searah sumbu ”“y sebesar 7500 N yang dilakukan pada kondisi diam atau statis. Hasil analisis menunjukkan bahwa model cangkang safety helmet yang memiliki MS tertinggi adalah model yang menggunakan material komposit e-glass fibre/epoksi yaitu sebesar 7, 104. Sedangkan model dengan material epoxy/goni menempati urutan yang ke-2 dengan nilai MS 6,457 kemudian model dengan material polypropylene dengan MS 4,98 dan epoxy /rami dengan MS 3,02. Hasil analisis besarnya massa menunjukkan model helm dengan material dari polypropylene memiliki massa yang paling ringan dengan massa sebesar 0,294 kg, kemudian Epoxy/rami dengan massa sebesar 0,405 kg, Epoxy/goni dengan massa sebesar 0,521dan e-glass fiber/epoxy dengan massa sebear 0,586 kg. Meskipun material e-glass fiber/epoxy memiliki massa yang paling besar, namun nilai MS yang dihasilkan merupakan yang paling tinggi, sehingga dapat direkomendasikan sebagai bahan alternatif untuk membuat safety helmet
ANALISIS KORELASI NILAI CALIFORNIA BEARING RATIO (CBR) DAN NILAI KUAT GESER PADA TANAH LUNAK
Get PDFThe CBR value is influenced by soil gradation, mineral type, density and soil shear parameters. CBR testing is carried out on subgrade soil, but the undrained shear strength of the soil can also be used as a soil design parameter. Field shear strength tests that can be used to determine soil shear strength are DCP and Vane Shear. In contrast to DCP testing, shear strength testing is relatively quick and easy to determine soil properties to determine design parameters. Therefore, testing is needed to determine the correlation between the soil shear strength value and the CBR value to obtain a new equation that can be applied in the field. In this research, the CBR value was obtained through the Dynamic Cone Penetrometer test (DCP) and the soil shear strength of the vane shear test. DCP and Vane Shear testing was carried out at 10 test points in the Semarang area, Central Java. Laboratory testing is also carried out to validate soil types. The correlation obtained between the CBR value and the soil shear strength reached R = 0.8312. Based on this test, it can be concluded that the CBR value and soil shear strength value increase as the depth of the soil tested increases
OPTIMALISASI PEMANFAATAN LIMBAH ABUTA (ABU SEKAM PADI, DAN SERBUK BATA) SEBAGAI SUBTITUSI SEMEN PADA CAMPURAN BETON RAMAH LINGKUNGAN
Get PDFConstruction prioritizes the strength of concrete without thinking about the negative impact on the environment. The cement industry is estimated to contribute 5-7% of CO2 gas emissions in the world. On the other hand, Indonesia is also faced with environmental problems caused by various industrial waste. From this problem an innovation emerged, namely ABUTA (husk ash and brick ash). The aim of this innovation is to create a concrete innovation using Abuta Waste (Rice Husk Ash, and Brick Powder). For the manufacture of economical, environmentally friendly concrete to reduce the negative impacts caused by excessive use of cement and reduce industrial waste in Indonesia. In writing this proposal the author used the experimental writing method and data collection method. The concrete innovation applied is concrete with a mixture of variations in the composition of rice husk ash powder and red brick powder of 10% of the cement composition in conventional concrete so that it is more economical and environmentally friendly. In this study, the ACI (American Concrete Institute) mix design method was used with the required design quality of 30 MPa. It is hoped that this innovation can become an environmentally friendly concrete innovation to reduce the negative impacts of excessive cement use and reduce industrial waste in Indonesia. Based on the mix design, the proportion of ash mixture (rice husk ash and brick powder) is 1:1. Meanwhile, the ratio of the amount of ash mixture to cement is 10%: 90%. The compressive strength of concrete with a 0% Abuta mix variation (7 days old) was 19.5, while the concrete innovation with a 10% Abuta mix variation (7 days old) was 15.70 Mpa. This means that the 10% mixture reduces the compressive strength value by 46.28% below the 0% abuta mixture variation. Using a mixture of 10% ash (rice husk ash and brick powder) in innovative concrete can reduce production costs by IDR. 76,700/m ³. Based on the materials obtained in this manufacture, it can be concluded that to obtain optimal compressive strength, better quality materials are needed. The application of concrete can be applied in casting work floors and non-structural construction work such as buildings that require general load power such as housing, sculpture, home interiors and others
Green Value and Price Fairness on Young Consumers Purchase Intention of Electric Motorcycle: The Moderating Role of Environmental Knowledge
Get PDFThe preservation of the natural environment is an increasingly growing issue in Indonesia. The program to convert oil-fueled motorcycles to environmentally friendly electric energy has not been successful as expected.This study aims to analysis the influence of Green Perceived Value and Price Fairness on Purchase Intention of Electric Motorcycle Moderated by Environmental Knowledge. The sampling method was purposive sampling with119 university students as respondent. Data analysis techniques used linear regression with moderated variable. Result of research, Green Perceived Value and Price Fairness with moderated by Environmental Knowledge, have a significant effect on Purchasing Intention of Electric Motorcycle. It is hope to contribution a solution to the problems, with the implementation of green perceived value, price fairness, and environmental knowledge to increase purchasing intention of electric motorcycles among young customer
Influence of Service Quality on Student Satisfaction in Online Learning at the Polines Business Administration Department
Get PDFOnline learning is a solution that is widely used in Indonesia during the Covid 19 pandemic at all levels/levels of education. Online learning is the main method chosen so that the learning process continues and the transfer of knowledge from teachers to students continues. Even though the application facilities used have varied, it does not mean that all learning processes are going well and satisfying students. Therefore, this research was conducted to find out whether the quality of online learning services in Business Administration majors has satisfied students. This is important to know as an effort to evaluate and improve if there is something that needs to be fixed and also if in the future an online learning process is carried out again. The results of quantitative analysis based on the regression value of each variable shows a positive effect. The first has the greatest influence on student satisfaction is the Empathy variable (X6) which is equal to 0.691, then the Assurance variable (X5) is 0.643, the Ease of use variable (X2) is 0.372, the Responsiveness variable (X4) is 0.340, the Responsiveness variable (X3) is 0.270, and the last is the Website design variable (X1) of 0.047. However, based on the t test, there were only 3 variables that had a significant effect on student satisfaction in online learning during the Covid 19 pandemic, namely the Ease of use variable (X2), the Assurance variable (X5), and the Empathy variable (X6). Judging from the Adjusted R2 value, it is obtained a number of 0.610, which means 61% of the variance of student satisfaction in online learning for the Business Administration Department is explained by the variance of the variables Website design, Easy of use, Reliability, Responsiveness, Assurance, and Empathy, while the rest (100% - 61% = 39%) is explained/influenced by other factors not examined in this stud
Influence of Knowledge Sharing and Employee Engagement on Job Satisfaction at a cosmetic company Central Java
Get PDFIn the industrial competition, businesses must focus on elements that can raise employee satisfaction by fostering knowledge sharing and increasing employee involvement in the company in order to meet business objective. The aim of this study was to determine the impact of knowledge sharing and employee engagement on employees' job satisfaction at a cosmetics company in Central Java. This study used a questionnaire that has undergone validity and reliability testing to obtain data. Non-probability sampling with saturation sampling is the sampling approach employed in this study. All 40 employees of a cosmetics company in Central Java comprised the study's sample. The traditional assumption test, multiple linear regression analysis, the F test, the t test, and the coefficient of determination (R2) test are examples of data analysis techniques. The results of calculations using IBM SPSS version 25 software obtained the equation Y = 19.175 + 0.625x1 + 0.810x2+e, which indicates that the regression coefficient X1 is 0.625x1 in size. This demonstrates that raising X1 will result in an increase in Y of 0.625, and decreasing X1 will result in an increase in X2 of 0.810x2. This indicates that increasing the X2 variable will increase the Y variable by 0.810. Knowledge Sharing and Employee Engagement contributed 45.3%, although other factors that were not taken into account in this study had an impact on the remaining 54.7%
DETERMINAN KUALITAS AUDIT MENURUT TEORI ATRIBUSI
Get PDFThis study aims to empirically prove the effect of Independence, Due Professional Care, and Time Budget Pressure on Audit Quality and work experience. The number of samples used in this study was 64 auditors from 13 Public Accounting Firms in Semarang City. Sampling in this study was carried out using the purposive sampling technique, namely determining the sample by taking samples from the population based on specific criteria. This research uses quantitative data analysis techniques and data analysis methods with Partial Least Square (PLS) approach using WarpPLS 7.0 software. The analysis technique used is the outer model and the inner model. The results of this study indicate that independence has a positive effect on audit quality, due professional care has a positive impact on quality, time budget pressure has a negative effect on audit quality, and work experience does not affect audit quality