Building innovative and creative character through mathematics

Suyitno, Hardi; Suyitno, Amin

doi:10.1063/1.5028100

Cited by 14 publications

(14 citation statements)

References 3 publications

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“…Temperatures from two points in the melt (Figure 2(2) and (3)) were measured to estimate the SST at point (4) in Figure 2. Similarly, the temperature at point (4) was calculated using the slope of temperature versus distance between points (2) and (3). The melt at point (4) solidifies when shrinkage starts because shrinkage begins to occur once the solidified parts are coherently connected in the mold [14], and point (4) is the last area to solidify for the coherent connection.…”

Section: Methodsmentioning

confidence: 99%

“…Metal casting is one of the oldest manufacturing processes, in which molten metal is poured into a mold to form the desired shape and then allowed to solidify [1]. Its relative simplicity makes casting highly advantageous for mass production; however, an inherent problem with casting is the formation of a shrinkage cavity caused by volume reduction, which is inevitably introduced in the phase transformation from liquid to solid [2][3][4]. A general solution for eliminating the shrinkage cavity is the installation of excess materials, such as biscuits, runners, risers, and overflows [5,6].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Al 6061 Alloy Compositions on Mechanical Properties of the Automotive Steering Knuckle Made by Novel Casting Process

Jeon

Kim

Moon

et al. 2018

Metals

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This study demonstrates the feasibility of a novel casting process called tailored additive casting (TAC). The TAC process involves injecting the melt several times to fabricate a single component, with a few seconds of holding between successive injections. Using TAC, we can successfully produce commercial-grade automotive steering knuckles with a tensile strength of 383 ± 3 MPa and an elongation percentage of 10.7 ± 1.1%, from Al 6061 alloys. To produce steering knuckles with sufficient mechanical strength, the composition of an Al 6061 alloy is optimized with the addition of Zr, Zn, and Cu as minor elements. These minor elements influence the thermal properties of the melt and alloy, such as their thermal stress, strain rate, shrinkage volume, and porosity. Optimal conditions for heat treatment before and after forging further improve the mechanical strength of the steering knuckles produced by TAC followed by forging.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Al 6061 Alloy Compositions on Mechanical Properties of the Automotive Steering Knuckle Made by Novel Casting Process

Jeon

Kim

Moon

et al. 2018

Metals

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“…The next steps are: 1) the preparation of the syllabus and contracts and associated Geometry Basis of preparation of the learning plan is a component-component model (syntax, the social system, the principle of reaction, support systems, and the impact of instructional and impact accompanist), task analysis and the analysis of the topics elaborated based on the material to achieve competence set out; 2) Election media (MFI). This media selection activities carried out to determine the appropriate media in the presentation of the learning material, and competence of the troubleshooting results indicate the benefits of studying the Geometry for the life of students and for further development; 3) Election format portfolio assessment instruments (Suyitno, 2004). The selection of the format of the portfolio assessment instruments for this Geometry courses adopted from device model Life Science (Arikunto, 2006).…”

Section: Initial Investigation Stagementioning

confidence: 99%

Math Learning Through Student Assessment Portfolio PGSD Usm Banda Aceh

et al. 2017

RW-JASC

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Required accuracy PGSD students/prospective teachers in presenting these concepts, so that pupils are taught later were able to understand it correctly through the daily life of the students, so the impression and the accepted view of student PGSD to a mathematical concepts in College was the beginning level may continue to be carried away on the next time. Mathematics is considered the most difficult courses. This happens because the math is considered to have a high degree of difficulty and the difficulty of adjustment of the students with learning that there is a new worldthat is the University. Therefore, the need for an assessment that could develop whilst aspects (cognitive, affective, psychomotor, and emotional)

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“…Apabila informasi yang dicantumkan pada dokumen rekam medis penulisannya tidak lengkap, maka kemungkinan kode diagnosis juga tidak akurat dan berdampak pada biaya pelayanan kesehatan. Ketidakakuratan kode diagnosis akan mempengaruhi data dan informasi laporan, ketepatan tarif INA CBG's yang pada saat ini digunakan sebagai metode pembayaran untuk pelayanan pasien jamkesmas, jamkesda, jampersal, askes PNS yang diselenggarakan oleh dalam menetapkan kode diagnosis maka jumlah pembayaran klaim juga akan berbeda (Suyitno, 2007). Kimberly et al (2005) menyebutkan bahwa dalam catatan manual atau elektronik, dokter sering menggunakan sinonim dan singkatan untuk menggambarkan kondisi yang sama.…”

Section: Pembahasan Dean Penyakitunclassified

Peningkatkan Kualitas Pengkodean Pada Ketepatan Dan Kecepatan Pengkodean Penyakit Untuk Penagihan Klaim BPJS Di Rsud Petala Bumi Pekanbaru

Octaria

2016

JurnalMIKI

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RSUD Petala Bumi Pekanbaru dalam pengkodean penyakit masih ditemukan ketidaktepatan pengkodean sehingga memperlambat proses klaim BPJS. Tujuan penelitian mengetahui perbedaan ketepatan dan kecepatan pengkodean sebelum dan sesudah petugas mendapatkan pelatihan pengkodingan untuk penagihan klaim BPJS di RSUD Petala Bumi Pekanbaru Tahun 2015. Jenis penelitian adalah kuantitatif analitik dengan pre post test. Analisis data dilakukan secara univariat dan bivariat dengan uji marginal homogeneity. Hasil penelitian ada perbedaan (kehandalan) (P=0.000), validity (keakuratan) kode (P=0.002), completeness (kelengkapan) diagnosa (P= 0.000), ketepatan dan kecepatan pengkodean penyakit (P=0.000) sebelum dan setelah pelatihan di RSUD Petala Bumi Pekanbaru. Sedangkan RSUD Bangkinang (Kontrol) tidak ada perbedaan pada (kehandalan) (P=0.083), validity (keakuratan) (P=0,180), completenss (kelengkapan) (P=0,083), ketepatan dan kecepatan (P=0,083) pada penilaian I dan II tanpa pelatihan. Simpulan penelitian ini adalah ada perbedaan kualitas pengkodean penyakit pada reliability, validity, completeness dan kecepatan ketepatan pengkodean setelah dilakukan pelatihan pengkodean Disarankan perlunya pengembangan materi dan teknis pelatihan pengkodean penyakit, dan monitoring dan evaluasi kualitas pengkodean penyakit.

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Building innovative and creative character through mathematics

Cited by 14 publications

References 3 publications

Effect of Al 6061 Alloy Compositions on Mechanical Properties of the Automotive Steering Knuckle Made by Novel Casting Process

Effect of Al 6061 Alloy Compositions on Mechanical Properties of the Automotive Steering Knuckle Made by Novel Casting Process

Math Learning Through Student Assessment Portfolio PGSD Usm Banda Aceh

Peningkatkan Kualitas Pengkodean Pada Ketepatan Dan Kecepatan Pengkodean Penyakit Untuk Penagihan Klaim BPJS Di Rsud Petala Bumi Pekanbaru

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