Compression Test and Finite Element Analysis of Foamed Concrete Cube

Foamed concrete is one of the most economical and industrialized construction materials in modern building construction market either for conventional construction technique or precast construction technique. However, the damage behavior of foamed concrete had not been explored deeply by researchers especially for its continuum damage mechanics and plasticity. This paper presents the results of compressive tests and finite element analysis of foamed concrete cubes. The focus of this paper is on the compressive behavior of foamed concrete. Three dimensional- nonlinear finite element model was developed and analyzed by the aquasi static technique using the ABAQUS explicit module. The input parameters of the model were obtained from experimental results. Concrete damaged plasticity was chosen as damaged criteria. Results show that the proposed finite element model is able to predict the damage behavior of the foamed concrete cube accurately. Thus, finite element method can be used as an economical tool for studying the structural behavior of foamed concrete in compression

Penerapan Model Pembeajaran CLIS Terhadap Hasil Belajar Peserta Didik Kelas VIII7 SMP Negeri 1 Pallangga Kabupaten Gowa

Penelitian ini adalah penelitian Pre- eksperimental (pra-eksperimen) yang bertujuan untuk mengetahui apakah hasil belajar peserta didik dapat mencapai standar ketuntasan minimal yang telah ditetapkan di SMP Negeri 1 Pallangga Kabupaten Gowa apabila diterapkan model pembelajaran Children Learning In Science (CLIS) pada semester genap tahun pelajaran 2013/2014 yang terdiri dari 615 orang peserta didik dengan sampel sebanyak 35 peserta didik. Penelitian ini dilaksanakan lima kali pertemuan yang terdiri dari empat kali pertemuan di kelas dan satu kali tes. Pengumpulan data hasil belajar diperoleh dengan memberikan tes sebanyak 30 butir soal yang telah di validasi sebelumnya, selanjutnya data yang terkumpul dianalisis dengan menggunakan analisis statistik deskriptif, inferensial dan analisis taksiran rata-rata. Berdasarkan hasil analisis statistik deskriptif diperoleh skor rata-rata peserta didik sebesar 23,03. Pada analisis inferensial digunakan uji normalitas dan uji hipotesis, diperoleh hasil belajar berasal dari sampel yang berdistribusi normal sedangkan Taksiran rata-rata diperoleh hasil sebesar 22,33 ≤ μ ≤ 23,73, dan berada pada kategori sedang. Adapun hasil dari pengujian hipotesis menunjukkan bahwa hipotesis yang diajukan diterima, sehingga kesimpulan dari penelitian ini adalah hasil belajar peserta didik kelas VIII7 SMP Negeri 1 Pallangga Kabupaten Gowa memenuhi standar KKM setelah diajar menggunakan model pembelajaran Children Learning In Science (CLIS). Kata kunci: Hasil belajar, model CLISThis research is an experimental Pre- (pre-experiment), which aims to determine whether the study of students can achieve mastery minimum standard that has been set in the SMP Negeri 1 Pallangga Gowa when applied learning models Children Learning In Science (CLIS) in the second semester 2013/2014 school year consists of 615 people learners with a sample of 35 learners. This study was conducted five meetings consisting of four sessions in the classroom and one test. The data collection study results obtained by giving the test as many as 30 items that have been validated previously, then the data were analyzed using descriptive statistical analysis, inferential and analysis of the estimated average. Based on the results of descriptive statistical analysis obtained an average score of 23.03 learners. In the inferential analysis used the normality test and test hypotheses, the result of learning derived from normal distributed samples while Estimated average obtained yield was 22.33 ≤ μ ≤ 23.73, and middle category. The results of hypothesis testing shows that the hypothesis is accepted, so that the conclusions of this research is the study of students grade VIII7 SMP Negeri 1 Pallangga Gowa meet the standards KKM after being taught using learning models Children Learning In Science (CLIS)

Peningkatan Pemahaman Konsep Fisika Dengan Menggunakan Metode Penemuan Terbimbing Kelas Viib SMPN 8 Makassar

Penelitian ini bertujuan untuk meningkatkan pemahaman konsep fisika dengan metode penemuan terbimbing pada peserta didik kelas VIIB SMP Negeri 8 Makassar. Jenis penelitian ini adalah classroom action research (penelitian tindakan kelas) yang terdiri dari dua siklus dimana pada siklus pertama dilaksanakan sebanyak tiga kali pertemuan, dan pada siklus ke dua dilaksanakan sebanyak empat kali pertemuan. Subjek dalam penelitian ini adalah peserta didik kelas VIIB SMP Negeri 8 Makassar sebanyak 39 orang. Hasil penelitian menunjukkan bahwa pada siklus pertama yang tuntas secara klasikal dari 39 peserta didik hanya 25 peserta didik atau 64,10% yang memenuhi kriteria ketuntasan minimal (KKM). Secara individual belum terpenuhi karena nilai rata-rata diperoleh sebesar 71,38. Sedangkan pada siklus II dimana dari 39 peserta didik terdapat 30 orang atau 76,92% telah memenuhi KKM dan secara klasikal dan secara individual dengan skor rata-rata yang diperoleh sebesar 77,31. Berdasarkan hasil penelitian tersebut di atas, dapat disimpulkan pemahaman konsep fisika peserta didik kelas VIIB SMP Negeri 8 Makassar melalui penerapan metode penemuan terbimbing mengalami peningkatan.Kata kunci: pemahaman konsep, penemuan terbimbing, kkm, klasikal, skor rata-rataThis study aims to improve understanding of physics concepts with guided discovery method in class students of SMP Negeri VIIB 8 Makassar. This research was classroom action research (action research), which consists of two cycles in which the first cycle meetings held three times, and the cycle to two meetings held four times. Subjects in this study were VIIB class students of SMP Negeri 8 Makassar as many as 39 people. The results showed that in the first cycle is completed in the classical style of 39 students only 25 or 64.10% of learners who meet the minimum completeness criteria (KKM). Individual has not met since the average value obtained was 71.38. While in the second cycle of 39 learners where there are 30 people or 76.92% in compliance and in the classical KKM and individually with an average score of 77.31 earned. Based on the above results, it can be concluded understanding of physics concepts VIIB class students of SMP Negeri 8 Makassar through the application of guided discovery methods have increased

Silver Spot Plating Technique.

Electroplating play an important roles in semiconductor manufacturing industries. A layer of silver or gold was selectively plated on the surface of lead frame by using electroplating technology. The purpose of depositing a layer of gold or silver on the surface of lead frame is to improve the bondability during die attach and wire bonding process

Fundamentals Studies Of Electro-Silver Plating Process.

The growth of electronic industry as a whole, and the demand to support the expansion of its underlying infrastructure will continue to drive the improvements in electroplating process. In order to improve existing electroplating process, the study of fundamentals aspects for electroplating process has become important

Female genital tuberculosis revisted

Objective: To assess the clinical presentation of genital tuberculosis and to study various modes of diagnosis and treatment.SETTING: The Aga Khan University Hospital (AKUH), Karachi.Method: A retrospective case review of all index female cases of genital tuberculosis, admitted to AKUH over twelve years of period.Result: A total of 40 cases of genital tuberculosis were reported during this time period. Majority of cases were between 25-45 years. The commonest presenting symptoms were infertility (42.5%) and abdominal pain (42%). Others included fever, ascites, irregular vaginal bleeding, oligomenorrhea, chest pain and pain in the flanks. Main mode of treatment was antituberculous drug therapy for duration of nine months. Only 3 patients had successful pregnancies.Conclusion: Genital tuberculosis should be excluded when managing infertility in females