Yulfriwini YULFRIWINI
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Effect of Grading on Differences Using Mixed Concrete Aggregate Rough and Fine Aggregate Concrete Compressive Strength of Natural Yulfriwini YULFRIWINI
International Conference on Engineering and Technology Development (ICETD) 2014: 3rd ICETD 2014
Publisher : Bandar Lampung University (UBL)

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Abstract

The use of concrete is widely used because of its superiority among other ze strong in press conditions and weak in tensile conditions, and also the structural elements of the most widely used in building, because the material is easy to obtain and easy to make or easy to do. In the first experiment with a mixture of coarse and fine aggregate gradation naturally obtained an average compressive strength of 88.61 kg / cm3. In a second experiment with a mixture of coarse aggregate and fine aggregate gradation modification of the natural gradations obtained an average compressive strength of 103.31 kg / cm3. In the third experiment with a mixture of coarse aggregate and fine aggregate gradation modification of 50% and 50% natural materials sand material origin Mount Sugih obtained an average compressive strength of 121.24 kg / cm3
Effect of Addition of Additive Sikament LN Compressive Strength Of Cement Concrete Using Red and White Yulfriwini Yulfriwini; Purba R H; Wisman M
International Conference on Engineering and Technology Development (ICETD) 2017: 4rd ICETD 2017
Publisher : Bandar Lampung University (UBL)

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Abstract

Various studies and experiments in the field of concrete as part of efforts to improve the quality of concrete. In the construction of high-rise buildings and other massbuilding takes high-strength concrete, normal concrete is the most appropriate choice. Campuaran concrete is usually in the form of sand, gravel, cement and water. Because offrequent problems in the field such as stirring and casting it is necessary to use the additive (additive) that Sikament LN as the concrete mix in order to mix more encer.Sehinggaadukannya facilitate stirring and casting, reducing loss and speeding up the hardening of concrete (concrete early strength. Year First researching matrieal be used. Second yeardesigning the concrete mix using the red brand white cement with added material SikamentLN. Third-year result compressive strength, slump values, the levels of each of theingredients (water, cement, aggregates, SikamentLN)in the mix.Research by the addition ofa dditive Sikament LNt ersebut targeted obtain data on compressive strength of normalconcrete using red and white brand cement and additives plus Sikament LNat 28 days. Keywords: compressive strength of concrete, the slump value of the concrete, the concretemaker ingredient content
SISTEM PAKAR DIAGNOSA PENYAKIT PADA AYAM BROILER DENGAN METODE FORWARD CHAINING Fenty Ariani; Marpitalia Marpitalia; Erlangga Erlangga; Yulfriwini Yulfriwini
EXPERT: Jurnal Manajemen Sistem Informasi dan Teknologi Vol 9, No 1 (2019): Juni
Publisher : Universitas Bandar Lampung (UBL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36448/jmsit.v9i1.1227

Abstract

Bertenak bibit ayam broiler bukanlah hal yang mudah, banyak faktor yang harus di perhatikan. Sedari awal memulai beternak segala sesuatunya harus diatur sedemikian rupa agar berjalan maksimal dan produktif. Mulai dari perkandangan, mengurus pakan, juga memperhatikan kesehatan hewan ternak. Apalagi banyak wabah penyakit yang dapat mucul dari berbagai aspek, seperti cuaca yang tidak stabil, lingkungan yang kotor, atau pakan yang kurang sesuai takarannya. Penyakit dapat dengan mudah menyerang hewan ternak melalui berbagai bakteri yang terkandung pada udara maupun makanan. Melihat dari faktor-faktor diatas, penulis ingin menciptakan suatu alat pengukur suhu tubuh ayam yang di lengkapi dengan sistem pendeteksi penyakit berdasarkan gejala-gejala yang ditunjukan oleh ayam. Penyakit akan lebih mudah di basmi jika kita dapat mengetahui diagnosa diawal-awal terjangkit. Seperti pada masa awal masuknya bibit ayam broiler kedalam kandang akan sangat rentan bagi bibit ayam terserang penyakit jika tidak diperhatikan secara benar.Pada penelitian ini, peneliti akan membuat alat pengkur suhu tubuh untuk mengukur suhu tubuh ayam broiler. Menggunakan sensor dan mikrokontroler dan membangun sistem aplikasi android untuk melengkapi proses diagnosa penyakit.