Jurnal - Universitas Bandar Lampung (UBL)
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Concept of Data Security in Digital Image Media Using Spread Spectrum Steganography and Playfair Cipher Cryptography
Get PDFIn the world of informatics, there are many techniques that can be used to maintain the confidentiality of digital information from parties who are not responsible and have access rights to that information. One of the most common techniques today is steganography and cryptography. Steganography is a method used to secure information by hiding it in an object without having to change the shape of the object, while cryptography is a science that studies the technique of encoding original text (plaintext) by utilizing encryption keys so that the script turns into text that is hard to read (ciphertext). ) by a user who does not have the decryption key. This research will explain how to secure information in digital images using spread spectrum steganography techniques and playfair cipher cryptography. The test results show that the information inserted in the digital image media is difficult to return to its original form and the media inserted does not change in siz
Pengolahan Citra Wajah dengan CNN untuk Absensi
Get PDFFace Recognition Using CNN for Attendance. Collecting Facial recognition systems included in the field of image processing can be integrated into attendance, where attendance can be done using faces to make it easier for employees to attend attendance and reduce the level of cheating in attendance because attendance must be done by employees directly. This research analyzes image processing which is integrated with data set with python programming language and OpenCV library. The face recognition process uses facial recognition based on image feature extraction. This study aims to implement computer vision into a simple face detection system by utilizing the existing libraries in OpenCV and using the Python programming language as the foundation of the system. This study aims to analyze computer vision in a simple face detection system by utilizing the existing library in OpenCV as well as utilizing the Python programming language as the foundation of the system and applying the Convolution Neural Network method
Estimasi Proyek Aplikasi Online Shop dengan COCOMO II Menggunakan Pendekatan Algoritma SPRINT
Get PDFSoftware Project Estimation for an Online Shop Application Using COCOMO II with the SPRINT Algorithm. Effort estimation is an important factor in successful software development. COCOMO II is an estimation model that can estimate application project effort using scale factors and cost drivers. However, the accuracy of this model is considered low, so this research aims to improve the estimation accuracy of the COCOMO II model by applying the SPRINT algorithm approach to the research object of the online shop application project. The COCOMO II model is used to calculate the estimation of project time, personnel, and costs. Meanwhile, the SPRINT algorithm is used to predict the priority of module work based on the COCOMO II estimation results. This study compares the accuracy of effort estimation with previous research using the COCOMO II model with the C4.5 algorithm approach which is the predecessor of the SPRINT algorithm. The results show that the estimation of application projects using the COCOMO II model with the SPRINT algorithm approach produces 100% accuracy, more accurate than the COCOMO II model with the C4.5 algorithm approach which only produces 90% accuracy. This research proves that the use of the SPRINT algorithm can further improve the speed and accuracy of prediction compared to the use of the C4.5 algorithm
Analisis Mendalam Mengenai Implementasi Sistem Informasi Dalam Rangka Pemberdayaan Dan Peningkatan Kesejahteraan Keluarga Di Lingkup Pkk Provinsi Lampung
Get PDFThe province of Lampung implements the Family Empowerment and Welfare Information System (SIPPK). The management of this system is based on the work programs of the PKK Mobilizing Team, aimed at facilitating online services for the team and emphasizing the importance of family empowerment and welfare programs. However, it is observed that the cadres face challenges due to inadequate equipment, limited work facilities, and unappealing communication methods, which hinder the implementation of family empowerment and welfare programs. This affects the cadres' performance in carrying out the PKK programs optimally. When the information system is not well implemented, the cadres struggle to identify or plan programs that meet community needs. They also face difficulties in gathering, mobilizing, and nurturing community potential, particularly families, leading to less effective implementation of PKK programs. This study aims to understand the implementation of the Family Empowerment and Welfare Information System and assess the performance of PKK cadres in Lampung province. Data was collected through observations, interviews, and documentation, and analyzed qualitatively. The results show that the implementation of the information system in Lampung faces challenges, such as the lack of supporting devices like laptops or projectors, which hinders effective communication and socialization. This leads to monotonous, less engaging communication and affects the cadres' performance in executing the Family Empowerment and Welfare Information System
Pengaruh Kompetensi dan Kualitas Pelayanan Aplikasi ETLE Terhadap Kepatuhan Masyarakat dalam Berlalu Lintas (Studi pada Direktorat Lalu Lintas Kepolisian Daerah Lampung)
No full textPenelitian ini bertujuan adalah untuk mengetahui pengaruh: (1) Kompetensi terhadap kepatuhan masyarakat dalam berlalu lintas (2) Kualitas pelayanan aplikasi ETLE terhadap kepatuhan masyarakat dalam berlalu lintas. (3) Kompetensi dan kualitas pelayanan ETLE secara bersama-sama terhadap kepatuhan masyarakat dalam berlalu lintas. Metode penelitian ini menggunakan tipe penelitian deskriptif verifikatif, dengan mengambil sampel yaitu sebanyak 100 orang pengendara kendaraan bermotor. Teknik pengumpulan data dilakukan dengan observasi, kuisioner dan dokumentasi. Analisis data dilakukan dengan analisis deskriptif dan analisis regresi linier berganda. Hasil penelitian ini menunjukkan: (1) Kompetensi petugas Direktorat Lalu Lintas Kepolisian Daerah Lampung berpengaruh positif dan signifikan terhadap kepatuhan masyarakat dalam berlalu lintas. Hal ini berarti bahwa apabila kompetensi ditingkatkan maka kepatuhan masyarakat dalam berlalu lintas juga akan mengalami peningkatan. (2) Kualitas pelayanan ETLE oleh petugas Direktorat Lalu Lintas Kepolisian Daerah Lampung berpengaruh positif dan signifikan terhadap kepatuhan masyarakat dalam berlalu lintas. Hal ini berarti bahwa apabila kualitas pelayanan ditingkatkan maka kepatuhan masyarakat dalam berlalu lintas juga akan mengalami peningkatan. (3) Kompetensi dan kualitas pelayanan ETLE oleh petugas Direktorat Lalu Lintas Kepolisian Daerah Lampung secara bersama-sama berpengaruh positif dan signifikan terhadap kepatuhan masyarakat dalam berlalu lintas. Hal ini berarti bahwa apabila kompetensi ditingkatkan dan kualitas pelayanan ditingkatkan maka kepatuhan masyarakat dalam berlalu lintas juga akan mengalami peningkatan
Analisis Sifat Mekanik Komposit FABA, Serat Bambu, dan Batu Krokos dengan Matrik Epoksi: Studi Pengaruh Komposisi terhadap Kekuatan Impak dan Kekerasan
No full textFly Ash Bottom Ash (FABA) merupakan limbah non-B3 yang masih kurang dimanfaatkan, terutama di sektor material komposit. Penelitian ini mengeksplorasi sifat mekanik komposit berbasis FABA, serat bambu, dan batu krokos dengan matrik epoksi. Tiga variasi komposisi diuji untuk mengetahui pengaruhnya terhadap kekuatan impak dan kekerasan material. Uji impak menunjukkan bahwa komposisi dengan FABA 20%, serat bambu 20%, dan batu krokos 20% memberikan nilai impak tertinggi sebesar 0,01051 Joule/mm². Sementara itu, hasil pengujian kekerasan tertinggi diperoleh pada komposisi yang sama dengan nilai rata-rata sebesar 85,5 HD. Temuan ini menunjukkan bahwa semakin tinggi proporsi FABA dalam campuran, semakin rendah kekuatan impak dan kekerasan material. Hasil ini memberikan wawasan baru untuk pemanfaatan limbah FABA dalam material komposit
Analisis Perbandingan Kekuatan Tarik dan Bending pada Kampuh Las V Tunggal dan X Tunggal Menggunakan Metode Shielded Metal Arc Welding (SMAW) dengan Arus 140 Ampere
No full textPenelitian ini membahas pengelasan logam menggunakan metode Shielded Metal Arc Welding (SMAW) dengan arus 140 ampere dalam posisi 3G. Proses pengelasan menggunakan sambungan tipe butt joint dengan kampuh las V tunggal dan X tunggal pada sudut 30°. Tujuan penelitian adalah untuk mengevaluasi pengaruh variasi kampuh las terhadap hasil uji tarik dan uji bending pada logam ASTM A36. Hasil penelitian menunjukkan bahwa spesimen dengan kampuh V tunggal memiliki tegangan bending tertinggi sebesar 8648 MPa, sementara X tunggal memiliki kekuatan tarik tertinggi sebesar 4574 MPa. Variasi kampuh las secara signifikan memengaruhi kekuatan mekanik material, dengan spesimen X tunggal menunjukkan kinerja terbaik secara keseluruhan pada uji tarik
Analisis Keausan dan Umur Sisa Top Roller Excavator Komatsu PC SE 3000 dengan Metode FMEA
No full textExcavator Komatsu PC SE 3000 merupakan alat yang digunakan untuk penggalian dan pemindahan material dalam proses produksi batu bara. Komponen undercarriage pada excavator sangat penting dalam operasinya, namun komponen ini rentan mengalami keausan akibat gesekan, khususnya pada top roller. Penelitian ini bertujuan untuk menganalisis tingkat keausan dan sisa umur pakai top roller pada excavator Komatsu PC SE 3000, serta melakukan pengendalian risiko kerusakan menggunakan metode Failure Mode Effect and Analysis (FMEA). Data dikumpulkan melalui studi literatur, observasi, pengukuran, dan dokumentasi. Hasil penelitian menunjukkan bahwa keausan pada top roller disebabkan oleh kontak normal dengan track link dan minimnya perawatan yang menyebabkan kendurnya track link, sehingga meningkatkan gesekan. Tingkat keausan top roller pada posisi 1 adalah 45%, posisi 2 sebesar 40%, dan posisi 3 sebesar 25%. Sisa umur pakai top roller pada hour meter 8.115,80 dengan tingkat keausan 45% adalah 6.885 jam, pada hour meter 7.412,82 dengan tingkat keausan 40% adalah 7.587,18 jam, dan pada hour meter 5.163,78 dengan tingkat keausan 25% adalah 9.837,22 jam. Berdasarkan analisis FMEA, upaya membersihkan dan menjaga ketebalan top roller, track frame, dan track link dapat mengurangi risiko kerusakan dengan menurunkan nilai Risk Priority Number (RPN) dari 384 menjadi 216
Analisis Trend sebagai Media untuk Menaksir Kinerja Keuangan Pada PT Media Nusantara Citra Tbk
Get PDFABSTRACTOne of the activities or the final task that is important for an investor or a management is to review the company's financial statements that need to be carried out carefully to be able to make the right decision. Financial reports that have been arranged by a company can be used to quote a decision, both for internal and external administrative parties of the company. Financial statements are the most recent procedure in accounting which has a very important role to measure & evaluate the performance of a company. Especially companies located in Indonesia that have gone public, should manifest financial reports every year. The purpose of this observation is to understand the financial performance of PT Media Nusantara Citra Tbk based on the financial reports that have been prepared for the past year. The financial report data is obtained from the annual financial reports, namely from 2019-2021 and will be analyzed or observed using trend analysis. The analysis technique used in this observation process is intended to use a quantitative approach, because the data is in the form of financial reports that are in accordance with the actual situation of the observations being investigated. The results of this observation are to understand and evaluate what the financial performance of PT Media Nusantara Citra Tbk is like in terms of increasing
ANALISIS PEMBERDAYAAN DAN PENILAIAN KINERJA PEGAWAI KELURAHAN SUKARAME BARU DALAM MENINGKATKAN PELAYANAN MASYARAKAT PADA MASA PANDEMI COVID 19
No full textThe purpose of this study is to analyse the empowerment and performance assessment of Sukarame Baru urban village employees in improving community services during the covid-19 pandemic. This research was conducted directly in the Sukarame Baru urban village using observation and interview methods. Based on the results of the research conducted, there are conclusions that: (1) To carry out online community services during the covid 19 pandemic, it is necessary to be supported by adequate human resources, facilities and infrastructure and office facilities. (2) There are employees who are always ready to provide services to the community. (3) There are still delays in completing work (4) There are still employees who lack discipline when entering and leaving the office