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Widya Teknik
Published by Universitas Katolik Widya Mandala Surabaya
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Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 272 Documents
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Penerapan Bahan Baku Berbasis Clean Label dalam Teknologi Pengolahan Produk Sosis Ayam di Indonesia Christina Kurniawan
Widya Teknik Vol. 20 No. 1 (2021): May
Publisher : Fakultas Teknik, Universitas Katolik Widya Mandala Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33508/wt.v20i1.3060

Abstract

Peningkatan konsumsi produk olahan daging di Indonesia dan perubahan pola konsumsi masyarakat untuk memilih produk yang lebih sehat menjadi pertimbangan produsen dalam mengembangkan produk sosis ayam berbasis clean label. Secara umum produk clean label dapat merujuk pada produk yang menggunakan bahan alami, bebas alergen, bebas bahan GMO (genetically modified organisms), bahan tambahan pangan seminimal mungkin dan komposisi produk yang mudah dipahami konsumen. Penulis mengevaluasi komposisi yang tercantum pada delapan produk sosis ayam komersial yang di pasaran dan menemukan pada semua sampel masih menggunakan bahan yang bersifat sintetik dan alergen. Pembahasan akan difokuskan pada potensi penerapan bahan baku berbasis clean label pada empat jenis bahan baku yang digunakan pada semua produk yaitu bahan pewarna, pengawet, penstabil, dan pengikat. Penerapan bahan baku clean label pada produk sosis ayam secara umum terkendala oleh faktor harga dan kestabilan selama proses pengolahan. Hal ini mendorong perlunya rekayasa formulasi  dan proses (jika diperlukan) untuk menghasilkan produk sosis ayam dengan harga terjangkau dan mampu memenuhi permintaan konsumen untuk pola konsumsi lebih sehat
Proposed Design Improvement In Process Flow and Form Of Process Change Request at PT. ABC Ken Warsy Triastuti
Widya Teknik Vol. 20 No. 1 (2021): May
Publisher : Fakultas Teknik, Universitas Katolik Widya Mandala Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33508/wt.v20i1.3070

Abstract

PT. ABC is a corporation in the automotive manufacturing industry. In corporation's production, PT. ABC supplies goods from several suppliers. Quality management of suppliers and supply goods is needed by PT. ABC to obtain supplies according to the standards set by PT. ABC. The Process Change Request (PCR) is a requisite process for the standard change of supply items covering 4M (man, machine, method, and material). The process flow and form of Process Change Request have been standardized and listed on the Supplier Quality Assurance Manual (SQAM). The Supplier Quality Assurance Manual (SQAM) is the requirement document as a guide to the quality of parts and components, a corporation's internal quality assurance, and a policy for suppliers. In the process flow and form of PCR has been found a problem of inconsistency between the ideal time and the actual time of the PCR's approval phase which hampered the supply of PT. ABC caused by waste. In this study, the researcher proposed the improvement design to the process flow and form of PCR by applying the kaizen concept approach (continuous improvement) using the "plan" step of The PDCA cycle method (plan-do-action) and the fishbone diagram.
Working Principles Of Constant Current Regulator (CCR) As Charge With Constant Flow At The Airport International Jendral Ahmad Yani Semarang Fariza Haqi; Yuliarman Saragih; Rahmat Hidayat
Widya Teknik Vol. 20 No. 2 (2021): November
Publisher : Fakultas Teknik, Universitas Katolik Widya Mandala Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33508/wt.v20i2.3104

Abstract

The Airfield Lightning System (ALS) is an important part of this airport operations. Without the help of these lights, landings and flight departures can be very dangerous. It can be said to be Airfield Lightning System (ALS) is the key in handling the safety of the operating authority aviation services. The Airfield Lightning System (ALS) really requires intensity fixed and unchanging light so that the pilot can see the lights that clearly. Given a very vital function in aviation services required a power supply that supports the operation of the Airfield Lightning System (ALS). The required power supply system must of course meet Airfield's criteria Lightning System (ALS). Because a constant current is needed, then di use the Constant Current Regulator (CCR). The supporting components are also involved designed so that Runaway Lightning operations can take place continuously maximum, and can support flight safety.
Automated Software Testing for Multi Platform Applications using Katalon Suhatati Tjandra; Indra Maryati; Joshua Theopilus
Widya Teknik Vol. 20 No. 1 (2021): May
Publisher : Fakultas Teknik, Universitas Katolik Widya Mandala Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33508/wt.v20i1.3114

Abstract

The testing process is not only useful for testing existing features, but also for finding errors on websites and mobile applications. It also provides feedback to the developer about the application being tested. To test large scale applications, a test automation is needed so that testing can be done more efficiently and effectively. Katalon Studio is an automation testing tool developed by Katalon LLC to automate testing on websites, API's and mobile applications. The programming languages used to create scripts in Katalon Studio are Groovy, Java, and Javascript. The scripting technique provided by Katalon Studio is a keyword driven approach where keywords in the method of Katalon Studio are used to represent the actions performed by tester on the application being tested. Katalon Studio will also facilitate tester in documenting testing results or test reports in the form of charts, graphs, and detailed reports using Katalon Analytics. The results of the testing show that the use of Katalon Studio helps both beginner and experienced tester create and design automation testing on websites, APIs, and mobile applications with spy and record utilities features. Katalon Studio also provides interactive test reports in the form of graphic visualization. From the results of API testing, it can be concluded that Katalon Studio makes it easy for tester to do end to end API testing without additional integration with other software.
Analisis Peramalan Pemakaian Raw Material Round Bar Carbon Dengan Metode Single Moving Average (Studi Kasus PT Pindo Deli Pulp And Paper Mills – 2 Departemen Workshop) Wawan Setiawan; Vita Efelina
Widya Teknik Vol. 20 No. 1 (2021): May
Publisher : Fakultas Teknik, Universitas Katolik Widya Mandala Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33508/wt.v20i1.3121

Abstract

PT. Pindo Deli Pulp and Paper Mills 2 is a company engaged in the production of paper and tissue. This company consists of several departments. One of them is the workshop department. The department's material order system uses the SAP application, when the material is used, each input will reduce the amount of the initial material until the material approaches the least amount, the SAP application will automatically order the material to the supplier. however, this method is considered less effective, because for the use of the material itself, it is almost different from one another, which results in ordering materials at different times, once ordering the shipping cost also costs money. The number of orders always uses the initial order amount, as a result of which rarely used materials take up a lot of space. The approach that can be taken is the Forecasting method, namely Single Moving Average. This method produces material forecasting, D16: 2 kg, D20: 15.65 kg, D25: 61.55 kg, D30: 69.77 kg, D35: 101.04 kg, D40: 141.63 kg, D45: 16.60 kg, D50: 122.86 kg, D60: 63.73 kg, D65: 551.11 kg, D70: 258.62 kg, D75: 279.03 kg, D80: 317.68 kg, D90: 302.23 kg, D100: 596.97 kg
Peramalan Penjualan Produk Dengan Metode Regresi Linear Dan Aplikasi POM-QM di PT XYZ Ilyas Aji Prakoso; Kusnadi Kusnadi; Billy Nugraha
Widya Teknik Vol. 20 No. 1 (2021): May
Publisher : Fakultas Teknik, Universitas Katolik Widya Mandala Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33508/wt.v20i1.3158

Abstract

Forecasting is a method for estimating a value in the future or the future using past data. For forecasting in this study conducted at PT. XYZ, where this company produces fertilizers and sells it in the city and out of town, in this research the researchers discuss forecasting product sales using the exponential smoothing method and also the linear regression method and re-accurate using the POM-QM application or software. The use of these 2 forecasting methods is to obtain forecasting results that have the smallest MSE value, and in this study the data were taken from the company PT. This XYZ is data in 2019
Model Eoq dengan Mempertimbangkan Faktor Kedaluwarsa dan All Unit Discount Pada Produk Frozen Food Nandatul Munawaroh; Martinus Edy Sianto; Ig Jaka Mulyana
Widya Teknik Vol. 20 No. 1 (2021): May
Publisher : Fakultas Teknik, Universitas Katolik Widya Mandala Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33508/wt.v20i1.3178

Abstract

Persediaan berkaitan dengan penyimpanan bahan baku/barang setengah jadi/barang jadi untuk dapat memastikan lancarnya suatu sistem produksi atau kegiatan bisnis bagi suatu perusahaan/industri. Bagi perusahaan/industri yang bergerak dalam menghasilkan produk perishable (penurunan nilai setelah waktu tertentu), seperti pada perusahaan/industri makanan dan bahan kimia, masa kedaluwarsa bahan baku/barang merupakan faktor penting yang tidak dapat dilepaskan dalam perencanaan model persediaan. Model EOQ (Economic Order Quantity) adalah sebuah metode persediaan barang yang dapat digunakan untuk mengetahui berapa jumlah persediaan terbaik yang dibutuhkan perusahaan untuk menjaga kelancaran proses produksinya. PT. X merupakan perusahaan distributor produk frozen food. PT. X memiliki 64 jenis produk yang disimpan didalam gudang sebagai persediaan. Dalam prakteknya, perusahaan seringkali menerima penawaran diskon dari supplier dalam pembelian barang dalam jumlah yang banyak. Sehingga persediaan menjadi menumpuk, tidak habis terjual dan menjadi barang kedaluwarsa. Oleh karena itu, penelitian ini bertujuan untuk menentukan waktu dan jumlah pemesanan yang optimum untuk meminimumkan total biaya persediaan. Dari hasil perhitungan terlihat bahwa dengan menggunakan metode Economic Order Quantity maka akan terjadi penghematan biaya sebesar Rp 92.434.773 atau sebesar 21% dibandingkan dengan kondisi perusahaan yang sekarang.Kata kunci: all unit discount, EOQ, masa kedaluwarsa, meminimumkan biaya, produk perishable
Hubungan Kondisi Udara Masuk dengan Kondisi Udara Keluaran Air Cooler Doddy Purwadianto; Petrus Kanisius Purwadi
Widya Teknik Vol. 20 No. 2 (2021): November
Publisher : Fakultas Teknik, Universitas Katolik Widya Mandala Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33508/wt.v20i2.3521

Abstract

ABSTRAK              Penelitian ini bertujuan untuk melihat hubungan kondisi udara masuk terhadap kondisi udara keluaran air cooler. Selain itu juga untuk mendapatkan nilai efektivitas rata rata air cooler. Suhu udara masuk divariasikan, tetapi memiliki kelembapan spesifik w yang sama. Proses penurunan suhu udara, terjadi pada saat udara melewati beberapa cooling pad yang permukaannya dialiri air. Proses pendinginan udara diasumsikan berjalan secara evaporative cooling. Penelitian dilakukan secara eksperimen, dengan mempergunakan air cooler buatan sendiri. Untuk suhu udara masuk berturut turut: 30oC, 35oC, 40oC dan 45oC, dihasilkan suhu udara keluaran berturut turut sebesar 26,27oC, 27,66oC, 29,10oC, 30,9 oC dengan efektivitas rata rata  air cooler 89,5%.  ABSTRACT           This study aims to see the relationship between the intake air conditions and the air cooler outlet air conditions. In addition, to get the value of the effectiveness of the air cooler. The intake air temperature is varied, but has the same specific humidity W. The process of decreasing the air temperature occurs when the air passes through several cooling pads whose surface is flooded with water. The air cooling process is assumed to run by evaporative cooling. The research was conducted experimentally, using a homemade air cooler. For the inlet air temperature in a row: 30oC, 35oC, 40oC and 45oC, the resulting output air temperature is 26,27oC, 27,66oC, 29,10oC, 30,9 oC with the average effectiveness of the air cooler 89,5%. 
Analisis Pengaruh Keselamatan dan Kesehatan Kerja (K3) Dan Disiplin Kerja Terhadap Produktivitas Kerja Karyawan di PT. PLN (Persero) Area Tual Eka Riksi Ngabalin; Wahyu Eko Cahyono; I gusti Ayu Sri Deviyanti
Widya Teknik Vol. 21 No. 1 (2022): May
Publisher : Fakultas Teknik, Universitas Katolik Widya Mandala Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33508/wt.v21i1.3821

Abstract

Perusahaan atau usaha industri adalah suatu unit (kesatuan) usaha yang melakukan kegiatan ekonomi, bertujuan menghasilkan barang atau jasa Keselamatan dan Kesehatan Kerja adalah suatu sistem program yang dibuat bagi pekerja maupun pengusaha sebagai upaya pencegahan ,timbulnya kecelakaan kerja dan penyakit akibat hubungan kerja dalam lingkungan kerja Rancangan penelitian merupakan rencana menyeluruh dari penelitian mencakup hal-hal yang akan dilakukan peneliti mulai dari membuat hipotesis dan implikasinya secara operasional sampai pada analisa akhir, data yang selanjutnya disimpulkan dan diberikan saran. Hasil penelitian menunjukan bahwa faktor Keselamatan dan Kesehatan Kerja (K3) dan Disiplin Kerja memiliki pengaruh terhadap Produktivitas Kerja Karyawan. Kata Kunci: PT. PLN Area Tual, Keselamatan dan Kesehatan Kerja (K3), Disiplin Kerja, Produktivitas Kerja Karyawan
Sistem Marketplace Penitipan Hewan Dengan Memanfaatkan Teknologi React Native Grace Levina Dewi; Suhatati Tjandra
Widya Teknik Vol. 21 No. 1 (2022): May
Publisher : Fakultas Teknik, Universitas Katolik Widya Mandala Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33508/wt.v21i1.3874

Abstract

Keeping animals is a very fun hobby because pets can be entertainment in itself to relieve fatigue from daily activities. But there are certain times, the owner doesn't have time to take care of the pet, especially if there are tasks out of town for a few days, or other activities. Pet care is a solution to keep pets taken care of while their owners don't have time to take care of them. Animal care provides care facilities for pets that are deposited. Currently, many provide animal care services with the aim of helping facilitate the search for the best animal care services and according to needs. Developed a mobile application system in the form of an animal care marketplace using React Native technology. The purpose of making this system is so that animal owners can find animal care centers according to their wishes. There are two users who play a role in this system, namely animal owners and animal day care workers. The animal owner's user system can determine a message schedule to entrust animals to the care feature and choose the cage to be occupied. The advantage of this feature is that pet owners can also know the condition of their pets, because each officer will send information. Through testing this system, it is known that there are about 73% of users who want to use this system. This system helps people who have pets not to worry about doing care.

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