Portal E-Journal Politeknik Negeri Bengkalis
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PENGARUH ARUS PENGELASAN TERHADAP KEKUATAN PADA PROSES LAS SMAW MENGGUNAKAN ELEKTRODA TYPE E6013
Get PDFSalah satu proses pengelasan yang banyak digunakan dalam kontruksi baja adalah proses SMAW (Shield metal arc welding). Salah satu komponen penentu kualitas sambungan proses ini adalah jenis elektoda. Sementara itu elektroda yang beredar dipasaran biasanya produsen merekomendasikan penggunaan arusnya dalam rentang amper tertentu, sehingga hal tersebut sering membuat welder yang tidak memiliki WPS kesulitan untuk memilih arus yang optimal. Dalam penelitian ini membahas tentang pengaruh besarnya arus pengelasan terhadap kekuatan las SMAW menggunakan Elektroda E6013. Pengelasan dilakukan menggunakan material mild steel ketebalan 8 mm dengan proses pengelasan SMAW tipe mesin las DC dengan variasi arus 50A, 60A, 70A, 80A dan 90A.  Jenis sambungan butt joint single V groove, dengan metode pengujian hasil lasan menggunakan visual test. Spesimen dilakukan uji bending untuk melihat hasil kekuatan sambungan las. Berdasarkan hasil pengujian pada jenis elektroda A didapat kekuatan uji bending tertinggi dengan nilai beban patah 12969,31N dilas menggunakan besar arus 90A. Sedangkan pada jenis elektroda B dengan didapat uji bending tertinggi dengan nilai beban patah 23398.83N dilas dengan arus 90A.Â
Implementasi Neural Network Untuk Menentukan Tingkat Kesegaran Daging Ikan Tongkol
Get PDFIkan tongkol merupakan ikan laut konsumsi paling populer di indonesia, jika dalam keadaan segar ikan tongkol enak dan lezat untuk dikonsumsi. Kesegaran ikan tongkol bergantung dari cara penyimpanan dan pengolahannya. Pada penelitian ini dirancang suatu sistem untuk menentukan tingkat kesegaran daging ikan dengan menggunakan neural network. Sistem ini memanfaatkan array sensor dengan menggunakan sensor gas dengan jenis yang berbeda. Data sensor diproses ke mikrokontroller dan mikrokontoler mengirimkan data sensor ke mini PC yang telah terprogram algoritma neural network. Hasil percobaan menunjukkan tingkat keberhasilan 80% dari 15 kali pengujian. Pada sistem ini diharapkan dapat menggantikan indra penciuman manusia dan membantu manusia untuk mendapatkan daging ikan tongkol yang segar dan layak konsumsi
PENGARUH PARAMETER MENGGURDI BERTAHAP TERHADAP TERBENTUKNYA RASIO DELAMINASI BAIK PADA SISI MASUK MAUPUN SISI KELUAR LUBANG
Get PDFDelaminasi merupakan salah satu jenis kerusakan  kritis pada material Komposit. Delaminasi terjadi akibat sebagian dari benda kerja tidak terpotong secara sempurna akan tetapi dilakukan proses pemotongan dengan cara memberikan penekanan melalui pahat gurdi ke material, justru yang terjadi deformasi plastis disebabkan mekanisme penekanan, pada umumnya kondisi seperti ini terjadi pada material lunak yang memiliki mampu mesin yang rendah dan cenderung menghasilkan cacat seperti delaminasi baik pada bagian masuk (Entrance) maupun keluar lubang (Exit). penggunaan geometri pahat yang dimodifikasi bertingkat bukanlah merupakan kondisi yang terjadi sebenarnya. Untuk saat ini, kondisi tersebut baru dapat dipenuhi dalam skala laboratorium, untuk  kondisi sebenarnya penggunaan metoda menggurdi Step drilling ( Page Drilling Cycle) yang paling memungkinkan Oleh karena itu pada penelitian ini difokuskan untuk melihat peluang penggunaan metoda menggurdi bertahap. Dengan menggunakan Rancangan  Metode Taguchi Orthogonal Array L36 pengamatan dilakukan. Hasilnya dianalisa dengan  menggunakan metoda Signal-to-Noise Ratio (S/N ratio) dan ANOVA (Analysis of Variances). Hasil dari  S/N ratio mengindikasikan bahwa gerak makan kontribusinya sangat kecil untuk menggurangi delaminasi dalam suatu sistem pemotongan kemungkinan ini disebakan karena gerak makan yang diberikan itu merupakan rentang yang kecil secara teoritis tidak akan berpengaruh besar terhadap terbentukanya delaminasiÂ
THE TRANSLATION OF METAPHORS IN “EYES OF A BLUE DOG†INTO “SEPASANG MATA ANJING BIRUâ€
No full textThis study aims at describing metaphors translated form English to Bahasa Indonesia in the short story entitled Sepasang Mata Anjing Biru that was translated from Eyes of a Blue Dog by Gabriel Garcia Marquez. It also aims at describing the translation strategies in translating the metaphors. This study applied descriptive qualitative research. The data of this study were all clauses that contained metaphors, and they were obtained from in the short story entitled Sepasang Mata Anjing Biru that was translated from Eyes of a Blue Dog. The data were collected by using observational method which was supported by note-taking techniques. The data analysis was conducted by using translational identity method, because English was used in this study. The results of analysis were presented by using an informal method. The results showed that in translating the metaphors, most of the metaphor in source language were translated into metaphors in target language, and only 1 metaphor were translated into simile
FEAR OF ENGLISH PUBLIC SPEAKING: CAUSES AND CONQUEST
Get PDFAbstract: This study tries to find out what factors causing students’ fear of English public speaking and what methods could help them to conquer it effectively. This is a descriptive qualitative study where the data for the research were collected through a self-administered questionnaire distributed to all students of the sixth semester at English Study Program of State Polytechnic of Bengkalis – Riau.  The questionnaire was set based on relevant literature review and also focused on condition of the students based on daily observation done by the researcher during his several years of teaching Public Speaking subject to the students. After collecting the data, the researcher sorted the data by summarizing and choosing the specific category, displaying and verifying the data analysis and making the conclusion from the finding data. The result of this study reveals the factors that caused the fear of English public speaking facing by the students and the methods that could help the students most effectively to conquer their fear of English public speaking
DESIGNING ALVO GAME FOR ELEMENTARY SCHOOL STUDENTS
Get PDFIn learning English, there are several skills that should be learned by students such as listening, speaking, reading and writing. The students are expected to be able to master all language skills of English to communicate. In order to communicate there are components that the students must be able to acquire. Vocabulary is important to learn by students. One of ways to learn vocabulary is through a game. An Alvo Game was adapted from Game Guess Image and Scrabble game. The purpose of this study is to make Alvo Game to for elementary school students. The result of this study was a set of Alvo Game consists of plywood in which that there are twenty-nine double of alphabet and thirty pictures. The evaluation showed that it was suitable for elementary school students. By using this game, the students can learn vocabulary in a more interesting and attractive way
THE APPLICATION OF RECIPROCAL TEACHING TO IMPROVE BUSINESS TEXT READING COMPREHENSION OF BUSINESS ADMINISTRATION STUDENTS OF BENGKALIS STATE POLYTECHNIC
Get PDFBased on the problems found in the classroom, the students at State Polytechnic of Bengkalis had problems in comprehending business texts. It seemed difficult for them to understand contents and to identify the inference of the text. They also had limited vocabulary. Therefore, the researcher decided to solve these problems by applying Reciprocal Teaching. The researchaimedat finding out to what extent Reciprocal Teaching could improve the students’ reading comprehension of business texts. This reciprocal teaching applicationresearch was conducted in two cycles. Each cycle consisted of four meetings; three meetings for teaching reading comprehension of business texts and one meeting was for the test. Participants of the research were 25 students of Business Administration major. There were some instruments used asdata collection were (1) observation sheets; students, teacher, and teaching steps (2) field notes (3) and reading comprehension tests.The research findings showed that Reciprocal Teaching could improve the students’ reading comprehension of business texts. It could be seen from the improvement of the students’ score in reading comprehension of Business texts test. The average score of students in cycle 1 was 63,36 and in cycle 2 was 67,68. In conclusion, the implementation of Reciprocal Teaching could improve the students’ reading comprehension of Business texts at Business administration Students of State Polytechnic of Bengkalis. It improved both students’ score in reading tests and their interest in reading activities
IMPROVING STUDENTS’ READING COMPREHENSION OF BUSINESS TEXT BY USING “TELLS†STRATEGY AT FIRST YEAR STUDENTS OF STATE POLYTECHNIC OF BENGKALIS
Get PDFReading comprehension of business texts is necessary for students. However, many students, especially D3- Business Administration department of state polytechnic of Bengkalis faced dificulties in comprehending the business texts. Therefore, TELLS Strategy was proposed. TELLS strategy is a strategy which stands for Study the title; Examine for clues; Look for Important words; Look for hard words, and identify the setting. This article aimed at finding out to what extent the strategy to improve the students reading comprehension of business text and the factors that influence the changes. This classroom action research was conducted in two cycles. The result found that the students’ score in reading comprehension of business texts test increased. The average score of students in cycle 1 was 64 and in cycle 2 was 70. Then, the factors that influence the improvement of students’ reading comprehension of business texts were interesting teaching material, teacher’s role, and students’ willingness to do all procedures of the strategy. In conclusion, the implementation of TELLS strategy could improve the students’ reading comprehension of business texts majoring Business Administration improved both students’ score in reading tests and their interest in reading activities
Influence of Transformational and Transactional Leadership Style toward Food Safety Management System ISO 22000:2018 Performance of Food Industry in Pati Central Java
Get PDFThe purpose of this study is to analyze the influence of transformational and transactional leadership styles to the performance of the implementation of a food safety management system ISO 22000: 2018 at PT. SPN a food packaging beverage industry located in Pati Central Java. The study population are employees at PT. SPN as many as 88 people and data collection methods by giving a census questionnaire to all employees. The analysis tool this study uses SEM (Structural Equation Model) the LISREL program version 8.70. The results show that the transformational leadership style have positive and significant affected to the performance of implementation ISO 22000: 2018 and the transactional leadership style also have significant and positive affected the performance of implementation of the food safety management system ISO 22000:2018.Â
Pentingnya Opini Audit Going Concern dan Determinasinya
Get PDFTujuan dari penelitian ini adalah untuk menganalisa pengaruh dari audit tenure, debt default dan opini audit tahun sebelumnya terhadap opini audit going concern pada perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia (BEI) tahun 2012-2016. Selanjutnya variabel audit tenure, debt default dan opini audit tahun sebelumnya merupakan variabel independen, sedangkan variabel opini audit going concern sebagai variabel independen. Sampel yang digunakan pada penelitian ini sebanyak 31 perusahaan manufaktur selama 5 tahun periode pengamatan sehingga diperoleh 155 sampel penelitian. Data yang digunakan dalam penelitian ini adalah data sekunder dan teknik pemilihan sampel dengan metode purposive sampling. Metode analisis yang digunakan dalam penelitian ini adalah analisis regresi logistik dengan tingkat signifikansi 5%. Hasil pengujian hipotesis menunjukkan bahwa secara simultan variabel audit tenure, debt default dan opini audit tahun sebelumnya berpengaruh terhadap penerimaan opini audit going concern sebesar 61,7%. Secara parsial variabel audit tenure, debt default dan opini audit tahun sebelumnya tidak memiliki pengaruh terhadap penerimaan opini audit going concern