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Studi Numerik Pengaruh Convergency Promoters (CPs) Terhadap Karakteristik Aliran Dan Perpindahan Panas Dengan ℓ/D = 0.25, Pada Tube Banks Yang Tersusun Secara Staggered Chairunnisa, Chairunnisa; Prabowo, Prabowo
Jurnal Teknik ITS Vol 2, No 2 (2013)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM), ITS

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Abstract

Compact heat exchanger merupakan jenis alat penukar kalor yang banyak digunakan didunia industri gas, refrigerasi dan tata udara. Dalam hal performa, compact heat exchanger bergantung pada pola permukaan fin, yakni wavy dan straight fin. Straight fin, struktur permukaan fin yang datar membuat aliran membutuhkan waktu yang relatif lebih lama untuk terjadi perpindahan panas dibandingkan tipe wavy fin yang bergelombang. Selain merubah pola permukaan, upaya untuk memaksimalkan perpindahan panas pada straight fin juga dapat dibentuk dengan penambahan Convergency Promoters (CPs) pada permukaannya. Penelitian ini dilakukan dengan metode simulasi numerik dengan software Fluent 6.3.26. Simulasi ini dikondisikan dengan menggunakan model turbulensi k-ε RNG dan metode second-order upwind scheme. Pada penelitian ini yang divariasikan adalah Reynolds number berbasis diameter tube, yaitu 3000, 4000 dan 5000, dengan ukuran CPs, ℓ/D = 0,25, pada tube banks yang tersusun secara staggered . Fluida kerja yang digunakan adalah udara yang dimodelkan sebagai gas ideal yang mengalir melintasi celah antar tube dengan temperatur inlet 347.14 K dan temperatur tube (air) konstan sebesar 310.5 K. Dari hasil simulasi ini didapatkan visualisasi kontur kecepatan, temperatur dan visualisasi pola aliran yang terbentuk serta pembuktian hipotesa bahwa dengan adanya penambahan CPs akan meningkatkan perpindahan panas. Dimana, model modified akan meningkatkan nilai Nusselt number dan koefisien konveksi sebesar 47- 63% daripada model baseline (tanpa penambahan CPs).
PEMBENTUKAN KARAKTER IMAN DAN TAQWA SISWA MELALUI KEGIATAN EKSTRAKURIKULER IKATAN REMAJA MUSLIM DI SMA NEGERI 6 BANJARMASIN Chairunnisa, Chairunnisa; Wahyu, Wahyu; Ruchliyadi, Dian Agus
Jurnal Pendidikan Kewarganegaraan Vol 3, No 5 (2013): Jurnal Pendidikan Kewarganegaraan
Publisher : Jurnal Pendidikan Kewarganegaraan

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Abstract

Character education through extracurricular activities have also stipulated in the Law on National Education System No. 20 of 2003, the extracurricular essentially develop talents and interests optimally, as well as foster student independence and happiness are useful for yourself, family and community . The mission of extracurricular activities are: (1) provide a number of activities that can be chosen by the students according to the needs, talents, and interests. (2) organize activities that give students the opportunity to express themselves freely through independent or group activities. It is well known there is a minor offense that made them a habit. Based on this fact can be stated that the faith and piety of extracurricular activities is very important for the foundation of the early students behave. The purpose of this study is to investigate the formation of faith and godly character with the implementation of various Muslim youth bonding activity, and to identify obstacles and supporting factors in the formation of character through extracurricular activities bond Muslim teenager in SMA 6 Banjarmasin. The method used in this study is a qualitative method. Data was collected through observation, interview and documentation. Analysis of the results of the study is a step-by-step analysis of the data reduction, data presentation, draw conclusions. The results showed that the formation of faith and godly character through extracurricular activities students bond Muslim teenager in SMA 6 Banjarmasin has contributed greatly to the character of faith and devotion of students with a variety of activities carried out. Constraints faced in carrying out activities such as self-esteem itself, the influence of age, self awareness and supporting factors such as cooperation among teachers with the other coaches, the support of principals, providing coaches, facilities and infrastructure. Researchers suggest, saw the inter-school competitions with religious themes, its programs plus more and supporting facilities for the smooth running of the activitie.
EQUILIBRIUM MODULE DEVELOPMENT BASED MULTIPLE REPRESENTATIONS chairunnisa, chairunnisa; Fadiawati, Noor; diawati, chansyanah
Jurnal Pendidikan dan Pembelajaran Kimia Vol 1, No 2 (2012): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Program Studi Pendidikan Kimia FKIP Unila

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Abstract

This research aims to produce chemical equilibrium module based multiple representations. The research method used is the Research and Development. Subject of this study were 1 chemistry teachers and 20 students of the 2nd grade in 1st state high school Bandar Lampung. The trial results showed that the content of the module is limited in accordance with the curriculum. The presentation of the material in the module has excellent views of the sequence of the material presented, how the presentation of the material, symbolic representation, submicroscopic and macroscopic pre-sented and the questions that have been in accordance with the material and learning objectives. Physically, the modul is a good representation of multiple views of the font size, the separation between paragraphs, layout, use font variations (bold, italic, capital) and color selection. The test results readability aspect above 75% (Strong), or can be said to be good. Keywords: modules, chemical equilibrium, multiple representations
Desain Air-Track Berbasis Sensor Infra-Red sebagai Media Pembelajaran Mekanika Chairunnisa, Chairunnisa; Koen, Marwinda
Program Kreativitas Mahasiswa - Karsa Cipta PKM-KC 2014
Publisher : Ditlitabmas, Ditjen DIKTI, Kemdikbud RI

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Abstract

On learning physics, many students are less understanding concept well.Students only memorization theory and formulas than understand the physics so its difficult to apply knowledge in daily life. Media of instruction designed can help students for creative thinking and discover patterns so that they could understand the subject matter well. Air track is one of the media that can be used for experimental mechanics of motion. However, the barriers are is the price of air track is an expensive. According to the survey of one of the producers of educational tools, a set of air track is prices reaches 10,5 million rupiah. The author intends to make the air track based infrared sensor as mechanic learning media that cheap and qualified. So that through these device, students can improve the understanding of the mechanics and physics learning interest. The methods used in the manufacture of air track design are prototype, preparation tools and materials, prototyping, testing and analysis, as well as finalization and completion. The results obtained with the prototype units with 3 components namely fotogate, gliders, air track support, series of electronic sensors and stopwatch, ackrilic, pulley and a spring System. Air track based infrared sensor worthy of use because the friction that occurs between the glider with air track very small (µ_k = 0.12). In addition, air track can be used as a device of teaching physics especially mechanics because it makes easy for students to understand the concepts, as well as the students were very interested to learn the mechanics of using the air track.Keywords : Air track, Media, Sensor
GAMBARAN KONTRAKSI DISTRAKSI PADA LENGKUNG GIGI DAN LENGKUNG BASAL SECARA METODE HOWES Chairunnisa, Chairunnisa; Wibowo, Diana; Helmi, Zairin Noor
Dentino Vol 1, No 1 (2016)
Publisher : FKG Unlam

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Abstract

ABSTRACK Background: Teeth crowding is commonly caused by difference between tooth size and jaw size. One of the methods to analyze it is by using Howes method to assess whether apical base is fit to hold the teeth or not and also as determinant of treatment planning, whether patient is to be treated by extraction or expa nsion. Purpose : The purpose of this study is to describe dental and basal arch contraction distraction using Howes method, mean dental arch length and mean basal arch width of orthodontic patients at RSGM Gusti Hasan Aman. Method : The method was descriptive study with cross sectional approach. Samples were chosen using total sampling. Samples were 48 maxillary of orthodontic patients at RSGM Gusti Hasan Aman during September 2013-Juni 2014 fitted to inclusion and exclusion criteria previously set; consisted of 16 maxillary impressions of male subjects and 32 maxillary impressions of female subjects. Result : Result of this study presented mean maxillary Total Tooth Material (TTM) as 92.39 mm. Maxillary contraction distraction cases were 0 distraction case, 44 questionable cases, and 4 contraction cases. Conclusion : Based on the research has been conducted could be concluded that many patient were questionable cases. ABSTRAK Latar Belakang : Gigi berdesakan biasanya disebabkan perbedaan ukuran gigi dan ukuran rahang. Salah satu cara menganalisisnya menggunakan metode Howes yang bertujuan mengetahui cukup atau tidak basis apikal memuat gigi serta sebagai penentu rencana perawatan, pasien membutuhkan perawatan ekstraksi atau ekspansi. Tujuan : Tujuan penelitian ini untuk menggambarkan kontraksi distraksi lengkung gigi dan lebar lengkung basal secara metode Howes, rerata panjang lengkung gigi dan rerata lebar lengkung basal pasien klinik ortodonti di RSGM Gusti Hasan Aman. Penelitian ini merupakan penelitian deskriptif dengan pendekatan cross sectional. Metode: Pengambilan sampel penelitian dilakukan secara total sampling. Sampel penelitian ini 48 hasil cetakan maksila pasien klinik ortodonti RSGM Gusti Hasan Aman Periode September 2013-Juni 2014 sesuai kriteria inklusi dan ekslusi, diperoleh 16 hasil cetakan maksila laki-laki serta 32 hasil cetakan maksila perempuan. Hasil : Hasil penelitian menunjukkan rerata Total Tooth Material (TTM) maksila 92.39 mm. Kasus kontraksi distraksi maksila yaitu 0 kasus distraksi, 44 kasus meragukan dan 4 kasus kontraksi. Kesimpulan: Berdasarkan penelitian yang dilakukan dapat diambil kesimpulan bahwa banyak pasien yang mengalami kasus meragukan.
GENDER DISCRIMINATION REFLECTED IN THEIR EYES WERE WATCHING GOD BY ZORA NEALE HURSTON: FEMINIST APPROACH Triyogo, Agus; Chairunnisa, Chairunnisa
JOURNAL OF ENGLISH LANGUAGE AND LANGUAGE TEACHING (JELLT) Vol 1, No 2 (2017): Journal of English Language and Language Teaching (JELLT)
Publisher : JOURNAL OF ENGLISH LANGUAGE AND LANGUAGE TEACHING (JELLT)

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Abstract

This study aims to analyze gender discrimination reflected in novel Their Eyes Were Watching God by Zora Neale Hurston. This study reveals kinds of gender discrimination as reflected in the novel and how the gender discrimination affects characters as reflected in the novel. This study employed feminist approach. The writers only focused on analyzing gender discrimination issue limited on woman. The results show that the kinds of gender discrimination found in the novel were natality inequality, mortality inequality, household inequality, special opportunity inequality, and professional inequality. The effect of gender discrimination covered physical problems, psychological problems, impact on women’s family and dependent, and impact on social.
ANALISIS TERJEMAHAN KALIMAT YANG MEREPRESENTASIKAN TUTURAN KESANTUNAN POSITIF DALAM NOVEL THE HOST KARYA STEPHENIE MEYER DAN DAMPAKNYA PADA KUALITAS TERJEMAHAN Chairunnisa, Chairunnisa; Djatmika, Djatmika; Wiratno, Tri
PRASASTI: Journal of Linguistics Vol 1, No 1 (2016)
Publisher : Universitas Sebelas Maret

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Abstract

This research aims is to describe: (1) kinds of positive politeness markers in The Host novel, (2) translation techniques are used in the sentence that represent speech act of positive politeness in The Host novel, (3) the effects of the translation techniques which used by translators in sentences which represent politeness positive against the translation quality in terms of accuracy and acceptability.This research is a descriptive-qualitative research. The sources of data are the dialogues of The Host novel which represent positive politeness and also informants who assess the quality of the translation. Data were collected by the using analyzing of documents, questionnaires, and  forum group discussion (FGD). Data are analyzed by using Spradley’s ethnography method.The result of this research shows that there are 15 kinds of positive politeness strategy markers on The Host novel. The most dominating positive politeness strategy of this data is sub-strategy of use in-group identity marker, as much as 22,49% of the data. In this research, the translation techniques consist of the application of single translation techniques as much as 102 times, 136 times as many as couplets varian, varian of triplets as many as 34 times, and varian of quartets 2 times. The translation quality from 263 data (95,64%) include as accurate translation and 12 data (4,36%) are less accurate translation, then 231 data (84%) includes as acceptable translation, and 44 data (16%) are less acceptable translation. The majority of translation techniques have contributed positively to translation quality of The Host novel.Keywords: positive politeness, translation tehniques, translation quality
REKONSTRUKSI MISKONSEPSI SISWA PADA KONSEP MATERI GENETIK MELALUI PENERAPAN MODEL LEARNING CYCLE 7E Chairunnisa, Chairunnisa; Muhibbuddin, Muhibbuddin; Khairil, Khairil
Jurnal Edubio Tropika Vol 4, No 1 (2016): Jurnal EduBio Tropika
Publisher : Jurnal Edubio Tropika

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Abstract

Penelitian tentang “Rekonstruksi Miskonsepsi Siswa pada Konsep Materi Genetik melalui Penerapan Model Learning Cycle 7e” telah dilaksanakan di SMA Negeri 1 Sigli Kabupaten Pidie pada bulan Maret sampai dengan April 2015. Penelitian ini bertujuan mengetahui pengaruh penerapan model pembelajaran Learning Cycle 7e terhadap peningkatan penguasaan konsep siswa, kemampuan rekonstruksi miskonsepsi siswa dan penurunan miskonsepsi siswa pada materi genetik. Metode yangdigunakan dalam penelitian ini adalah metode eksperimen dengan desain pretest postest control group design. Populasi dalam penelitian ini adalah keseluruhan siswa kelas XII yang berjumlah 130 orang siswa. Pengambilan sampel dengan menggunakan teknik random sampling. Sampel penelitian sebanyak 60 orang siswa yang dibagi kedalam dua kelas, yaitu kelas eksperimen dan kelas kontrol. Instrumen yangdigunakan dalam penelitian ini adalah soal pilihan ganda model CRI. Pengolahan data dilakukan dengan cara menghitung N-Gain dan selanjutnya membandingkan antara kelas eksperimen dan kelas kontrol dengan menggunakan uji-t dan uji Mann-Whitney. Hasil penelitian menunjukkan bahwa terdapat perbedaan penguasaan konsep, rekonstruksi miskonsepsi, dan penurunan miskonsepsi siswa pada konsep materi genetik melalui penerapan model pembelajaran Learning Cycle 7e dibandingkan siswa kelompok kontrol yang menggunakan metode diskusi kelompok.
Meningkatkan Aktivitas Dan Hasil Belajar Siswa Pada Pembelajaran Kimia Penyetaraan Reaksi Redoks Melalui Lesson Study Di Kelas XII IPA SMA Negeri 2 Palu Chairunnisa, Chairunnisa; Supriadi, Supriadi; Rahman, Nurdin
Jurnal Akademika Kimia Vol 6, No 1 (2017)
Publisher : Universitas Tadulako

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Abstract

The research about the balancing of redox reaction on chemistry subject has been done. This research was conducted on class XII IPA8 SMA Negeri 2 Palu with 28 of the student, in the first semester of the academic year 2014-2015. The research method used is a descriptive qualitative in which data processing use percentages and rating scale. The data is collected by observation sheets, questionnaires, and documentation. Implementation of lesson study on class XII IPA8 SMA Negeri 2 Palu is conducted in three meetings time (open class) with 3 phases; plan, do and see, respectively. Based on the results obtained every meeting by the researcher, the data activity of students is rising by 54.93, 59.86, and 74.30%. Furthermore, at the third meeting, the data obtained is an excellent category which means the student’s activity in the lesson study was increased. These prove that through the lesson study can increase the activity of the learning process of students. In addition, based on the data analysis of the student’s learning outcomes during three meeting times is increased. Average of completeness of student’s learning outcomes of every meeting is 67.85, 85.71, and 100%, respectively. Again, these prove that the student’s learning outcomes by classical can be increased through the lesson study.
PENGARUH EKSIPIEN PENYALUTAN TERHADAP STABILITAS OBAT CHAIRUNNISA, CHAIRUNNISA; Gozali, Dolih
Farmaka Vol 16, No 1 (2018): Suplemen Juni
Publisher : Fakultas Farmasi Universitas Padjadjaran

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Abstract