Hadirnya Revolusi Industri 4.0 menyebabkan teknologi di bidang industri manufaktur berkembang sangat pesat, salah satunya mesin Rapid Prototyping dengan teknologi FDM yang merupakan mesin cetak 3 dimensi dengan prinsip pencetakan secara additive manufacturing informasi mengenai parameter proses yang dapat menghasilkan suatu produk 3D dengan kekuatan tarik secara ideal di Indonesia sangat minim, mengingat informasi tersebut sangat diperlukan dunia industri, sehingga penelitian ini bertujuan untuk mengetahui nilai kekuatan tarik serta parameter proses yang ideal dengan menggunakan filamen PLA PRO Metode yang digunakan pada penelitian ini adalah metode eksperimen faktorial, penelitian ini menggunakan mesin 3D printer Anet Et4, nozzle berukuran 0,4 mm, variasi parameter yang digunakan yaitu 3 level nozzle temperature, 15 infill pattern berdasarkan software Prusaslicer 2.3 dan orientasi sudut pencetakan vertikal 90ᵒ. Sehingga menghasilkan 45 kombinasi eksperimen. Hasil dari pengujian tarik tertinggi sebesar 44,2 yang terdapat pada eksperimen nomor 10 infill pattern 3D Honeycomb, Nozzle Temperature 210ᵒC, sudut pencetakan vertikal 90ᵒ. Sedangkan nilai kekuatan tarik terendah terdapat pada eksperimen nomor 43 dengan parameter infill Pattern Archimedean Chord, Nozzle Temperature 220ᵒC, sudut pencetakan vertikal 90ᵒ, dengan nilai kekuatan tarik sebesar 15,7 MPa. Sehingga dapat disimpulkan parameter proses tersebut mempengaruhi hasil dari pencetakan produk 3D printing.

In realizing individual health rights, health services are required to be able to place resources and organization efficiently with the advancement of medical world. Clinical pathway (CP) is a disease management tool used to reduce unnecessary variations in services to improve clinical outcomes and to control the use of resources (financial). Acute appendicitis is one of the most common causes of acute abdominal pain, with cases from 20-30% and increasing 32-72% at age of <60 years. Therefore, it is necessary to conduct a study on the implementation of CP in the RSU. Royal Prima Medan. This study was conducted by using mix method with a case study design. Qualitative data were taken by interview and observation with case manager, medical committee, and nurses (n = 5) and quantitative data were taken with simple descriptive from acute appendicitis CP documentation in medical records and ICPAT (January - September 2020, n = 117). The level of completeness for CP was 100% and form filling was 85%. ICPAT dimension 1 contents and quality are good, dimension 2 contents still lack, and quality is moderate, dimension 3 contents is good and quality is moderate, dimension 4 content in moderate criteria and quality is good, dimension 5 contents still lack and quality is moderate and dimension 6, contents is good and quality is in moderate category. Where the obstacles are due to lack of understanding and time constraints. The development of urinary tract stones CP is not quite optimal; it is necessary to conduct periodic socialization and training to support understanding in filling out CP.

Waste is one of the many social problems faced by the community. To solve the problem of waste required a technology to process waste itself. Several studies have been done, one of which is design and construction thrasher machine. There are several studies on the design and construction thrasher machine. However, the analysis was conducted on one type of thrasher machine with a particular waste material. This study aims to obtain the results of the efficiency analysis of the thrasher machine results on the type of thrasher machine and waste material. The method used is experimental method. The type of thrasher machine and waste material used as a free variable. The percentage of the chopping result is chosen as a variable depending on the speed of rotation and thrasher time as the companion variable. The results of this study based on the results of experiments, both qualitatively and quantitatively shows that plastic bottle trash has a suit with shear type, grass litter has a match with the type of swing and trash has a match with the type of crusher.

Palm brondolan are the outer fruit of the loose bunches and fall to the ground. Palm brondolan is used as a feed ingredient. Processing of palm brondolan for feed ingredients needs to be done by the process of damaging the material structure. This study aims to determine the quality of palm brondolan crusher using standard cutting eyes and determine the right shaft. In this study the crusher machine was designed using 13 circular cutting eyes to see the standard  4 x 1.75 mm, the number of teeth 40 pieces and the distance between cutting eyes 5 mm. This machine uses a source of driving power in the form of a 3 phase electric motor with 3 HP power and has a rotating speed of 1420 rpm and a rotation ratio of 1: 1 shaft. This study uses the experimental method, by comparing the shaft test with the quality of the palm blended crusher. The quality characteristics that are addressed are the smaller the better. The results of the study, obtained an effective engine capacity of 30 kg/hour. The quality of the crusher at 700 rpm shaft speed accelerated the size of coir length from 1 to 30 mm and the volume of shell and seed granules 8-27 mm3 while in shaft rotation 1420 rpm the size of 1-20 mm coir and the volume of grain and seeds 4-12 mm3 were obtained. From the results of the experiment proving that circular cutting eyes see the standard capable of destroying palm leaflets and shaft rotation affect the quality of the crusher. The 1420 rpm shaft rotation has a better crusher quality compared to 700 rpm shaft rotation.

Pemanfaatan limbah pelepah sawit dapat diolah sebagai pakan ternak, kompos, pembuatan briket, dan bahan dasar panel komposit. Pemanfaatan limbah pelepah kelapa sawit untuk berbagai tujuan tersebut diproses dengan cara mencacahnya menjadi cacahan berukuran kecil. Proses pencacahan dengan menggunakan mesin pencacah memberikan kemudahan bagi petani dan mempercepat waktu pencacahan. Beberapa penelitian telah dilakukan pada proses pencacahan pelepah daun kelapa sawit  dengan menggunakan motor penggerak yang berbeda-beda dan berbagai model pisau potong, daya motor, serta kecepatan putaran motor yang bervariasi dengan tujuan untuk mendapatkan kapasitas efektif mesin yang optimal. Metode perancangan yang digunakan dalam pembuatan mesin adalah metode Pahl Beitz, yaitu perencanaan, perancangan konsep produk, perancangan bentuk, dan perancangan detail. Parameter yang diamati dan diukur pada mesin adalah kapasitas efektif mesin, rendemen cacahan, dan ukuran panjang hasil cacahan. Uji coba dilakukan sebanyak tiga kali pengulangan dengan mencacah pelepah yang ditimbang masing-masing seberat 5 kg. Hasil uji coba terhadap mesin pencacah pelepah kelapa sawit sistem rotary menunjukkan bahwa kapasitas efektif mesin rata-rata adalah sebesar 244,06 kg/jam sehingga termasuk dalam kategori kelas A. Rendemen cacahan rata-rata pada mesin adalah sebesar 97 % dan ukuran rata-rata cacahan ? 50 mm adalah sebesar 89,5 % dan telah memenuhi syarat SNI 7580 : 2010.