ABSTRAKRekayasa struktur honeycomb sandwich dalam pengembangan material banyak telah dimanfaatkan karena memiliki kekuatan struktur yang relatif tinggi dengan bobot material yang ringan. Material dengan rekayasa struktur honeycomb cocok digunakan pada mobil hemat energi, untuk meningkatkan efesiensi energi. Dalam penelitian ini dibuat panel honeycomb sandwich berbahan komposit serat kaca (fibreglass) dan matirks resin. Panel ini nantinya akan diterapkan pada rangka kendaraan hemat energi. Tiga panel honeycomb sandwich dibuat dengan variasi pada ketebalan dinding sel terutama ditujukan untuk mengetahui pengaruh ketebalan dinding sel terhadap kekuatan dan kekakuan panel honeycomb sandwich. Variasi ketebalan dinding sel didapatkan dari variasi penerapan jumlah lapisan fiberglass pada dinding sel honeycomb, yaitu 2 lapis, 4 lapis dan 6 lapis fibreglass. Hasil pengujian bending menunjukkan bahwa panel honeycomb sandwich dengan ketebalan dinding sel terbesar, yaitu dengan 6 lapisan fibreglass, memberikan kekuatan lentur terbesar yaitu 3,774 kg/mm2, dan kekakuan tertinggi, yaitu 21,48 kg/mm.Kata kunci: honeycomb sandwich, komposit fibreglass, kekuatan lentur, kekakuan. ABSTRACTEngineering of honeycomb sandwich structure in the materials development has been highly utilized because of its high structural strength with lightweight material. Honeycomb structure material is suitable for use in energy-efficient cars, to increase energy efficiency. In this research, sandwich honeycomb panel were made from fibreglass composite with resin as matrices. This panel will be applied to the frame of energy-efficient vehicle. Three sandwich honeycomb panels were made with variations in cell wall thickness. These variations are primarily intended to determine the effect of cell wall thickness to the flexural strength and stiffness of the honeycomb sandwich panel. Variations in cell wall thickness were obtained from variations in the application of fibreglass layers on honeycomb cell walls, which are 2 layers, 4 layers and 6 layers of fibreglass. The bending test results show that the honeycomb sandwich panel with the largest cell wall thickness, which has 6 layers of fibreglass, provides the greatest flexural strength of 3.774 kg/mm2, and the highest stiffness of 21.48 kg/mm.Keywords: honeycomb sandwich,fibreglass composite , flexurall strength, stiffness.
Introduction: Sago analog rice had known as an example of food with high resistant starch. Recent research shows that sago analog rice and red bean flour also had a low glycemic index (GI). However, Identification of hypolipidaemic mechanism based on the nutrigenomic analysis remains unknown. Aim: This study aims to determine the effects of hypolipidaemic in diabetic rats with analog rice treatment. Material and Methods: Thirty-five male Wistar rats were divided into 5 groups with different food treatment, such as standard dietary food (STD) group, and four groups of diabetic rats with standard dietary food (STDD), mentik wangi rice diet (MWRD), sago analog rice (SARD) and sago analog rice with 10% red bean flour (SARKBD). Lipid profile was observed every week for a month. Measurement of insulin and blood glucose was performed twice at the beginning and end of treatment. Atherogenic index (AI) was also investigated. Then, the pancreas was collected for histological analysis. Results: SARD group showed the highest effect of decreasing the total cholesterol (47.74%) which followed by SARKBD (34.62%). The triglyceride level in SARD group was also significantly decreased (31.14%), followed by SARKBD (19.32%). However, the HDL increase in SARD (48.66%), followed by SARKBD (36.00%). The LDL level in SARD and SARKBD group were significantly decreased, respectively 32.89% and 22.19%. SARD atherogenic index levels lower than SARKBD; 1.00 and 2.06. Conclusion: The improvement of insulin resistance by SARD and SARKBD were generated by role of resistant starch through the mechanism of bile acid binding, insulin sensitivity escalation and SCFA effect.
Toko Berkah Swalayan adalah toko yang bergerak di bidang ritel atau eceran. Dalam meningkatkan strategi penjualan ada beberapa cara yang dapat dilakukan oleh Toko Berkah Swalayan salah satunya adalah dengan melakukan pola tata letak barang. Pengaturan tata letak barang dagangan di rak toko sangat mempengaruhi minat konsumen dalam berbelanja. Akan tetapi dalam pengaturan tata letak barang pada Toko Berkah Swalayan masih mengalami kendala yaitu kurangnya pengetahuan pihak Toko Berkah Swalayan dalam pengaturan tata letak barang.Oleh karena itu dibutuhkan suatu sistem yang dapat membantu Toko Berkah Swalayan dalam menentukan pengaturan tata letak barang agar dapat meningkatkan strategi penjualan yaitu dengan membangun sebuah sistem Penerapan Data Mining Pengaturan Pola Tata Letak Barang Pada Berkah Swalayan Untuk Strategi Penjualan Menggunakan Algoritma Apriori. dengan dibangunnya sistem ini diharapkan dapat membantu pihak Berkah Swalayan dalam mengatasi permasalahan yang terjadi.Hasil dari penelitian adalah, Pertama dapat meningkatkan strategi penjualan Berkah Swalayan melalui data penjualan, Kedua sistem ini dapat membantu meningkatkan target penjualan pada Berkah Swalayan dan yang Ketiga sistem ini dapat membantu dalam menentukan tata letak barang dengan lebih baik
The rapid development of technology at the end of this decade, the industrial world is changing the human resources they have using the help of robot technology. The use of a robot was chosen because of the accuracy and precision that it can do in doing the job. In addition, robotic technology requires only one programming to do many things. Thus, there are many advantages for companies by using robotic technology in their production processes. This research aims to designing and building arm robot prototype to teach the robotics programming language. The result of this research is an arm robot prototype with Arduino Mega 2560 based programming. In addition, the robot movement programming uses the open source GrblGru software Grbl based. The GrblGru used for interpreting G-code and to convert pulse and direction information to control the stepper motor. This research concludes that there are 5 importance steps on develop the arm robot prototype, 1. Analyze; 2. Design; 3. Develop; 4. Evaluate; and 5. Implementation. With the GrblGru software the movements of arm robot prototype can work on simulation mode and control mode, there for students easier to study robotics programming language.
Nowadays backpacking travel is the most popular travelling style which famous to the youth traveller. According to the history, the travelling style can be tracked from the nomadic tribes in all corner of the world for their moving habit for run their life. Through the ages, the nomad who carries backpack at their back to bring necessities adopted by soldiers, explorers, and many kinds of travellers, until transformed to the modern free independent tourist (FIT) ; backpacker, flash packer to the present techno packer. The backpackers itself always become an interesting object for the scholars and the tourism experts. Their travelling style colorized every great journey that men ever made. This paper aim is to seek and identify the existence of backpackers and their travelling style throughout historical paradigm. The methods using in this research is both literatures studies and field observatory to the iconic backpacking travels sites in the history. The results show that the backpackers and backpacking travel consists of unique characteristics who determine their travelling style that different among the common tourist or even the group inclusive tour (GIT). The backpackers travels much longer, more far, they travel some time to the off beaten tracks, they always made interaction with the local community, and their journeys inspired others. No wonder if in the future backpacking travel will contributes so many influences to the tourism world.
Cleaning service memiliki kendala ataupun masalah kinerja yang tidak sesuai dengan kontrak kerja yang diberikan kemereka, maka dalam hal ini pihak PT.Iss Indonesia dapat mengamati dan melakukan penilaian dengan cepat pada jasa Cleaning service. Dalam hal perusahaan memerlukan pengambilan keputusan yang maksimal dan cepat, maka dalam pembangunan sistem penilaian yg bisa dan teruji pada memilih kinerja Cleaning service dalam PT.Iss Indonesia. Oleh sebab itu, perusahaan bisa memakai keilmuan sistem pendukung keputusan, yg bisa menyimpulkan output keputusan dalam menyelesaikan permasalahan dalam penentuan kinerja Cleaning service dengan menggunakan metode Complex Proportional Assesment (COPRAS).Permasalahan tersebut perusahaan membutuhkan suatu bidang keilmuan yang dapat membantu dalam pengambilan keputusan yaitu Sistem Pendukung Keputusan engan menggunakan metode Complex Proportional Assesment (COPRAS COPRAS lebih akurat dalam perhitungan perangkingan alternatif karena evaluasi kriteria maksimum dan kriteria minimum dilakukan secara terpisah. Metode COPRAS menggunakan penilaian dan evaluasi bertahap prosedur alternatif dalam hal signifikansi dan tingkat utilitas.Hasil penelitian ini mendapatkan hasil yang maksimal dalam menganalisa dan dapat membantu petugas agar dapat menentukan dalam kinerja cleaning service diharapkan dapat membantu pihak PT.Iss Indonesia.Kata Kunci: Cleaning Service, COPRAS,, Sistem Pendukung Keputusan
Pada tahun 2018, jumlah wajib pajak yang menyampaikan SPT Tahunan PPh Orang Pribadi meningkat pesat dibandingkan dengan tahun 2017, 80% di antaranya menggunakan e-filing. Dengan menggunakan e-filing, wajib pajak tidak harus datang ke kantor pelayanan pajak (KPP). Untuk membantu wajib pajak orang pribadi melakukan pengisian SPT Tahunan, sejak tahun 2017, DJP meluncurkan Program Relawan Pajak yang merupakan mahasiswa yang tersebar di perguruan tinggi di seluruh Indonesia. Agar dapat melakukan asistensi pengisian SPT menggunakan e-filing, para relawan pajak terlebih dahulu harus mengikuti pelatihan. Namun demikian, tidak seluruh perguruan tinggi mampu memberikan pelatihan kepada para relawan pajak. PKN STAN melalui program pengabdian masyarakat ikut serta dalam memberikan pelatihan kepada relawan pajak di Kanwil DJP Banten. Metode pelatihan dilakukan dengan cara penyampaian materi, diskusi, praktik simulasi pengisian SPT Tahunan PPh dan pembuatan kode billing. Berdasarkan hasil evaluasi setelah pelatihan, diketahui bahwa para relawan pajak telah mampu melakukan pengisian SPT Tahunan PPh Orang Pribadi, yaitu Formulir 1770 S dan 1770 SS.
The purpose of this classroom action research is to increase participation and science learning outcomes on the concept of the Life Organization System through the Scientific approach of the Crossword Puzzle model for class VIIA SMP N13 Tegal students in the even semester of the 2018/2019 academic year, namely learning by using crossword puzzles (TTS) as tools used to embed science concepts. This research was conducted in 2 cycles, each cycle consisting of 3 meetings. The data collection method that will be used is observation, and activity documentation. The results of the analysis of student participation in the first cycle is 31.25% in the second cycle is 90.63%. And the analysis of student learning outcomes in the first cycle is 65.63% and the second cycle is 87.50%. Classically, this research is said to be successful because the participation and learning outcomes are above the minimum specified criteria, namely 85% active and 85% of students complete learning.
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