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Bambang Riyono
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Biochemistry, Genetics & Molecular Biology Computer Science & IT Education Social Sciences

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EFEKTIVITAS MODEL PEMBELAJARAN PICTURE AND PICTURE DENGAN STRATEGI INKUIRI TERHADAP MOTIVASI DAN HASIL BELAJAR SISWA Riyono, Bambang; Retnoningsih, Amin
Journal of Biology Education Vol 4 No 2 (2015)
Publisher : Journal of Biology Education

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstrak ___________________________________________________________________________________ Hasil observasi menunjukkan bahwa motivasi belajar siswa menurun di akhir semester. Selain itu, tidak semua hasil belajar biologi mencapai kriteria ketuntasan minimal sekolah. Penelitian ini bertujuan menguji efektivitas model pembelajaran picture and picture dengan strategi inkuiri terhadap motivasi dan hasil belajar siswa pada materi protista. Metode yang digunakan pre-experimental dengan one shot case study. Populasi penelitian adalah seluruh siswa kelas X Matematika dan Ilmu Alam (MIA) SMAN 1 Kutowinangun. Sampel penelitian ditentukan dengan insidental sampling berdasarkan pertimbangan kelas diajar guru yang sama. Hasil penelitian menunjukkan bahwa motivasi belajar siswa pada kriteria sedang, tinggi dan sangat tinggi. Hasil belajar afektif menunjukkan peningkatan 4 sikap yang berada pada kriteria baik dan sangat baik. Hasil belajar psikomotorik menunjukkan 3 aspek yang dinilai pada kriteria baik dan sangat baik. Hasil belajar kognitif menunjukkan bahwa 77,8% siswa tuntas KKM. Dalam hal ini, nilai LDS lebih dominan menentukan nilai akhir dibandingkan nilai posttest. Hasil analisis tanggapan menujukkan siswa dan guru memberikan tanggapan yang baik dan tertarik terhadap penerapan model picture and picture dengan strategi inkuiri. Penerapan model pembelajaran picture and picture dengan strategi inkuiri efektif terhadap motivasi dan hasil belajar siswa pada materi protista.   Abstract ___________________________________________________________________ Observations show that the students motivation to decline at the end of the semester. Moreover, not all of learning outcomes in biology achieve minimum score. This study aims to test the effectiveness of the learning model "picture and picture" with the strategy of inquiry on motivation and learning outcomes of students in the protists material. The method used pre-experimental with one shot case study. The study population was all students of class X Matematika dan Ilmu Alam SMAN 1 Kutowinangun. The research sample was determined by incidental sampling based on the consideration that the classes taught by the same teacher. The results showed that students motivation on medium, high and very high criteria. Affective learning outcomes showed an increase in four attitude in the good and very good criteria. Psychomotor learning outcomes showed three aspects are assessed on the good and very good criteria. Cognitive learning results showed that 77,8% of students completed the KKM. In this case, LDS score is more dominant to determine the final score than posttest score. The results of the responses analysis showed that the students and teachers have responded well and interested in the application of the model picture and picture with the strategy of inquiry. Application of learning models picture and picture with an effective inquiry strategies to motivation and student learning outcomes in protists material..
Analisis Eksperimental Fluks Kalor pada Celah Sempit Anulus Berdasarkan Variasi Suhu Air Pendingin Menggunakan Bagian Uji HeaTiNG-01 Bambang Riyono; Indarto; Sinta Tri Habsari; Mulya Juarsa; Kiswanta; Ainur R.; Edy S.; Joko P.W.; Ismu H.
Jurnal Rekayasa Proses Vol 5, No 1 (2011)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (848.551 KB) | DOI: 10.22146/jrekpros.1895

Abstract

Eksperimen untuk mempelajari mekanisme perpindahan panas pendidihan pada celah sempit berdasarkan skenario kecelakaan parah PLTN TMI-2 perlu dilakukan untuk pemahaman terkait manajemen kecelakaan. Penelitian bertujuan untuk memperoleh nilai fluks kalor dan fluks kalor kritis (FKK) selama proses perpindahan panas pendidihan pada celah sempit anulus. Metode penelitian secara eksperimen menggunakan bagian uji HeaTiNG-01dengan fluida pendingin adalah air. Eksperimen dilakukan dengan memvariasikan suhu air pendingin pada suhu 75C, 85C dan 95C, dan memanaskan batang panas hingga mencapai suhu awal 650C. Kemudian proses pendidihan selama pendinginan direkam berdasarkan suhu transien pada batang panas. Data suhu digunakan untuk menghitung nilai fluks kalor dan wall superheat, hasilnya direpresentasikan melalui kurva didih. Hasil penelitian menunjukkan nilai FKK suhu pendingin 750C lebih rendah dibandingkan FKK suhu pendingin 85C dan 95C, dimana nilai FKK untuk suhu pendingin 85C dan 95C agak berdekatan. Nilai FKK maksimum untuk suhu 75C adalah 230 kW/m2, sedangkan untuk suhu 95C adalah 282 kW/m2. Meskipun demikian korelasi FKK terhadap posisi aksial batang panas pada berbagai variasi suhu mengikuti korelasi polynomial. Peristiwa pendidihan pada celah sempit tidak termasuk kategori didih kolam dengan membandingkan area didih film hasil eksperimen menggunakan korelasi Bromley. Kata kunci : kecelakaan parah, anulus, fluks kalor, FKK, celah sempit, didih kolam Experiment to investigate the mechanism of boiling heat transfer in a narrow gap on severe accident scenarios of TMI-2 nuclear power plant is necessary to develop the understanding of the related accident management.The present study aimed to obtain heat flux value and critical heat flux (CHF) during boiling heat transfer process in a narrow gap of annulus. The study was experimentally carried out using the HeaTiNG 01 test with water as cooling fluid which temperature was varied at 75C, 85C dan 95C. The rod was heated to 650C. The boiling process during cooling was investigated by recording the transient temperature of the heated rod. The data was used to calculate the heat flux and wall superheat which results were represented in a boiling curve. The experimental results showed that the CHF value of the cooling media at 75C was lower compared with that of at 85C and 95C. It was found that the values of CHF at 85C and 95C were close. The maximum CHF value at 75C was 230 kW/m2, while at 95C was 282 kW/m2. The CHF values at various position of heated rod was found to follow polynomial correlation. By comparing the boiling film areas from experimental results with that of Bromley correlation, it was concluded that boiling process in a narrow gap could not categorized as pool boiling process. Keywords: severe accident, annulus, heat flux, CHF, narrow gap, pool boiling
Analisis Eksperimental Fluks Kalor pada Celah Sempit Anulus Berdasarkan Variasi Suhu Air Pendingin Menggunakan Bagian Uji HeaTiNG-01 Bambang Riyono; Indarto; Sinta Tri Habsari; Mulya Juarsa; Kiswanta; Ainur R.; Edy S.; Joko P.W.; Ismu H.
Jurnal Rekayasa Proses Vol 5, No 1 (2011)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.1895

Abstract

Eksperimen untuk mempelajari mekanisme perpindahan panas pendidihan pada celah sempit berdasarkan skenario kecelakaan parah PLTN TMI-2 perlu dilakukan untuk pemahaman terkait manajemen kecelakaan. Penelitian bertujuan untuk memperoleh nilai fluks kalor dan fluks kalor kritis (FKK) selama proses perpindahan panas pendidihan pada celah sempit anulus. Metode penelitian secara eksperimen menggunakan bagian uji HeaTiNG-01dengan fluida pendingin adalah air. Eksperimen dilakukan dengan memvariasikan suhu air pendingin pada suhu 75C, 85C dan 95C, dan memanaskan batang panas hingga mencapai suhu awal 650C. Kemudian proses pendidihan selama pendinginan direkam berdasarkan suhu transien pada batang panas. Data suhu digunakan untuk menghitung nilai fluks kalor dan wall superheat, hasilnya direpresentasikan melalui kurva didih. Hasil penelitian menunjukkan nilai FKK suhu pendingin 750C lebih rendah dibandingkan FKK suhu pendingin 85C dan 95C, dimana nilai FKK untuk suhu pendingin 85C dan 95C agak berdekatan. Nilai FKK maksimum untuk suhu 75C adalah 230 kW/m2, sedangkan untuk suhu 95C adalah 282 kW/m2. Meskipun demikian korelasi FKK terhadap posisi aksial batang panas pada berbagai variasi suhu mengikuti korelasi polynomial. Peristiwa pendidihan pada celah sempit tidak termasuk kategori didih kolam dengan membandingkan area didih film hasil eksperimen menggunakan korelasi Bromley. Kata kunci : kecelakaan parah, anulus, fluks kalor, FKK, celah sempit, didih kolam Experiment to investigate the mechanism of boiling heat transfer in a narrow gap on severe accident scenarios of TMI-2 nuclear power plant is necessary to develop the understanding of the related accident management.The present study aimed to obtain heat flux value and critical heat flux (CHF) during boiling heat transfer process in a narrow gap of annulus. The study was experimentally carried out using the HeaTiNG 01 test with water as cooling fluid which temperature was varied at 75C, 85C dan 95C. The rod was heated to 650C. The boiling process during cooling was investigated by recording the transient temperature of the heated rod. The data was used to calculate the heat flux and wall superheat which results were represented in a boiling curve. The experimental results showed that the CHF value of the cooling media at 75C was lower compared with that of at 85C and 95C. It was found that the values of CHF at 85C and 95C were close. The maximum CHF value at 75C was 230 kW/m2, while at 95C was 282 kW/m2. The CHF values at various position of heated rod was found to follow polynomial correlation. By comparing the boiling film areas from experimental results with that of Bromley correlation, it was concluded that boiling process in a narrow gap could not categorized as pool boiling process. Keywords: severe accident, annulus, heat flux, CHF, narrow gap, pool boiling
Android-Based Information System Of Online Teaching Services With Geo-Location Determination Bambang Riyono; Widia Rifkianti
bit-Tech Vol. 1 No. 1 (2018): First Impression on Computing
Publisher : Komunitas Dosen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (855.223 KB) | DOI: 10.32877/bt.v1i1.6

Abstract

The information system of online teaching services with geo-location determination is a system that brings together and arranging meetings between private tutors and people looking for private tutors through Android application supported with geo-location. People can go looking for tutors of related subject for specific time of meeting and location, and then the system will search tutors with matched time of availability within nearest location radius. In addition, students can organize or plan a learning meeting session with the teacher through the application. This information system is a client-server based where the built application consists of Android applications running on the client environment and web applications running on the server environment. Mobile/client applications are used by end-users to search and organize learning session. Web applications serves as web services and interfaces for administrator to manage master data, view user and transaction data, print reports, and respond to complaints from end-users. The programming language used in building this information system is the Java programming language for mobile applications and PHP for web applications and web services. And using MySQL as the database.
Co-Authors Ainur R. Amin Retnoningsih Edy S. Indarto - Ismu H. Joko P.W. Kiswanta Mulya Juarsa Sinta Tri Habsari Widia Rifkianti