No abstract

The Novel Coronavirus that just appeared at the end of 2019 was named SARS-COV-2 which caused a pandemic of a respiratory disease known as COVID-19. In Indonesia itself, there was a case of COVID-19 first announced on March 2, 2020. The spread of COVID-19 in Indonesia is so fast because of one factor namely the lack of knowledge about COVID-19 prevention and early detection. This study will discuss the system to provide the latest information about the development of the COVID-19 case in Indonesia and help the community to conduct an independent detection of COVID-19 using an expert system. Information that will later be displayed on this application is obtained by web scraping techniques from the official website of the task force for the acceleration of handling COVID-19 in Indonesia. This system also has an early detection feature using the rule base method expert system. The results of this system are obtained from the responses of respondents and the results of respondents interested in this application with a percentage of 95.12%, and testing about the validation of the results of the expert system is the same as expected.

ABSTRAKTelah dilakukan penelitian mengenai sifat penyerapan bunyi oleh bahan penyerap bunyi berbahan dasar Serat Batang Pisang (SBP) dengan matriks Polyester. Bahan Penyerap Bunyi yang dibuat dengan variasi komposisi fraksi volume yang berbeda, perbandingan fraksi volume SBP dan Polyester yang dibuat yaitu 30%:70%, 40%:60% dan 50%:50%. Metode penelitian dilakukan dalam tiga tahapan yaitu pengambilan serat batang pisang, pembuatan komposit dan pengujian sifat penyerapan bunyi komposit SBP. Pembuatan sampel diawali dengan pengambilan batang pisang, penguraian serat batang pisang, perlakuan alkali dengan NaOH 4 %, kemudian pencampuran SBP dengan matriksnya polyester. Pencetakan komposit dengan alat cetak tekan dengan penekanan 12 jam. Kemudian dilakukan uji karakterisasi sifat penyerapan bunyi. Uji penyerapan bunyi dilakukan dengan menggunakan signal generator dan sound level meter dengan mengacu pada prinsis metode tabung impedansi melalui pendekatan box akustik. Hasil penelitian komposit SBP Polyester mampu menyerap bunyi dengan koefisien serapan bunyi = 0,84 pada fraksi volume serat 50%, hal ini menunjukkan bahwa komposit SBP mampu menyerap bunyi dengan baik untuk frekuensi rendah dan frekuensi sedang, sesuai dengan standar ISO 11654:1997 (E) dimana koefisien serapan bunyi bahan akustik minimal sebesar = 0,15. ABSTRACTThis research conducted to find the physical properties of the absorption of sound from banana stem fiber (Serat Batang Pisang/SBP) with polyesters' matrix. The sound absorbent material made with a variety of different volume fraction composition. The comparison between the SBP and the volume fraction of the polyester is made of 30%: 70%, 40%: 60% and 50%: 50%. The method of research was done in three stages: making banana stem fiber, manufacturing composite and testing of composite SBP. Composite testing includes physical properties (sound absorption). Preparation of the samples started by taking a banana stem, decomposition banana stem fiber, alkali treatment with NaOH 4%, then mixing the SBP with the matrix polyester. Manufactured the composites by press the materials on the molding for 12 hours, then tested to find physical properties. Sound absorption test performed using a signal generator and a sound level meter with the principle of the impedance tube method through acoustic box approach as a reference. The results of the study showed that SBP with polyester composite capable to absorb the sound with sound absorption coefficient α = 0.84 at 50% fiber volume fraction. Thus SBP composites can absorb sound for low and medium frequency, based on the standard ISO 11654:1997 (E) where the minimum of sound absorption coefficient of acoustic materials is α = 0.15.

Children are individuals who are in the process of rapid growth. Physical development becomes the basis for the development of the next development, which is marked by the development of gross and refined motor. One of many aspects that can develop the physical development of a child's gross motor is egrang batok or coconut batok from the Province of South Sulawesi. This traditional game can be used for media of joyful learning. The purpose of this study was to develop crude motor development of children with traditional egrang batok games. Research methods used were library research with content analysis. This research suggested that the use of traditional games theoretically could be able to develop children physical skills and explore his environment without any helping of others. Anak usia dini adalah individu yang sedang mengalami proses pertumbuhan yang sangat pesa. Perkembangan fisik merupakan hal yang menjadi dasar bagi bagi kemajuan perkembangan berikutnya, yang ditandai dengan berkembangnya motorik kasar dan halus. Salah satu aspek yang dapat mengembangkan perkembangan fisik motorik kasar anak adalah egrang batok atau batok kelapa yang berasal dari Provinsi Sulawesi Selatan. Permainan tradisional ini dapat dijadikan sebagai media pembelaran yang menyenangkan. Tujuan penelitian ini adalah untuk mengembangkan perkembangan motorik kasar anak dengan permainan tradisional egrang batok. Metode penelitian yang dipakai library research dengan analisis isi. Hasil penelitian ini menunjukkan bahwa secara teoritis penggunaan permainan tradisional mampu mengembangkan keterampilan fisiknya, dan eksplorasi lingkungannya dengan tanpa bantuan orang lain. Kata Kunci: anak usia dini, egrang batok, motorik kasar, permainan edukatif tradisional

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