1,115 research outputs found

    Test Case Prioritization Using Swarm Intelligence Algorithm to Improve Fault Detection and Time for Web Application

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    Prioritizing test cases based on several parameters where important ones are executed first is known as test case prioritization (TCP). Code coverage, functionality, and features are all possible factors of TCP for detecting bugs in software as early as possible. This research was carried out to test and compare the effectiveness Swarm Intelligence algorithms, where Artificial Bee Colony (ABC) and Ant Colony Optimization (ACO) algorithms were implemented to find the fault detected and execution time as these are the curial aspects in software testing to ensure good quality products are produced within the timeline. As web applications are commonly used by a board population, this research was carried out on an Online Shopping application represented as Case Study One and Education Administrative application known as Case Study Two. In recent years, TCP has been implemented widely, but none has implemented on web application which was conducted to fill the gaps and produce a new contribution in this area. The outcome was compared using Average Percentage Fault Detected (APFD) and execution time. For Case Study One, the APFD value was 0.80 and 0.71 while the execution time was 8.64 seconds and 0.69 seconds respectively for ABC and ACO. For Case Study Two, the APFD values were 0.81 and 0.64 while the execution time was 8.83 seconds and 1.22 seconds for ABC and ACO. It was seen that both algorithms performed well in their respective ways. ABC had shown to give a higher value for APFD while ACO had converged faster for execution time

    Perilaku Kesalahan Puncak Spektrum Akibat Penggunaan Fungsi Jendela Kotak, Hanning, Dan Flattop Pada Sinyal Sinus Waktu Kontinu

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    Vibration signals obtained from measurement are usually dominated by sinusoidal component. During measurement, the signal is recorded by a data logger with finite time record. This process causes truncation of the sinusoidal signal which may result a significant error of the spectral peak. This error is commonly reduced by the use of window functions. Unfortunately, the use of window function may cause spectral peak error although the obtained spectrum has been corrected. This paper describes derivation of mathematical equations of spectral peak error as a result of using Hanning and flattop windows on a sinusoidal signal. As a comparison, it initially describes derivation of mathematical equation of spectral peak error as a result of using uniform window on a sinusoidal signal. Finally, the equations which have been derived are validated using numerical simulation performed by Matlab software

    Implementasi Program Kali Bersih Di Kota Semarang Dalam Menanggulagipencemaran Lingkungan

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    Banyaknya kegiatan indutri dan masyarakat menyebabkan rusaknya ekosistem sungai dan mempengaruhi kehidupan masyarakat.Tujuan adanya Implementasi Program Kali Bersih (PROKASIH) di Kota Semarang untuk menangani pencemaran sungai yang semakin memburuk.Fokus penelitian ini adalah Program Kali Bersi di Kota Semarang.Tujuan penelitian ini untuk mengetahui sejauh mana pelaksaan Program Kali Bersih di Kota Semarang.Penelitian ini menggunakan penelitian kualitatif deskriptif.Teknik pengumpulan data menggunakan observasi, wawancara dan dokumen-dokumen yang berhubungan dengan pelaksanaan Program Kali Bersih di Kota Semarang. Hasil penelitian menunjukan bahwa pelaksaan program kali bersih sudah berjalan dengan baik meskipun hal ini masih terdapat beberapa kendala yang dihadapi seperti, sikap masyarakat yang masih membuang sampah di sungai dan pembuangan limbah industri yang tidak sesuai dengan baku mutu air limbah. Sehingga hal ini perlu upaya yang keras dalam meningkatkan dukungan kelompok sasaran Program Kali Bersih dalam upaya pemberian sanksi yang tegas terhadap pencemaran lingkungan

    Regular Solution Theory Model Used To Predict Supercritical CO2 Extraction Of p-chlorophenol Contaminate From Water Stream.

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    The objective of this paper is the assessments of the feasibility of the extraction process utilizing a near critical carbon dioxide solvent with p-chlorophenol contaminate solute, which would be speeded up if it were possible to predict mutual solubility data

    Penggunaan Metode Diskusi dalam Pembelajaran IPS untuk Meningkatkan Hasil Belajar Siswa Sekolah Dasar

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    PENGGUNAAN METODE DISKUSI DALAM PEMBELAJARAN IPS UNTUK MENINGKATKAN HASIL BELAJAR SISWA SEKOLAH DASAR Abstrak: Tujuan penelitian ini adalah untuk mengetahui apakah penerapan metode diskusi dapat meningkatkan hasil belajar siswa pada pembelajaran Ilmu Pengetahuan Sosial siswa kelas IV Sekolah Dasar Negeri 15 Mempawah Hilir. Adapun metode yang digunakan dalam penelitian ini adalah metode deskriftip. Bentuk penelitian adalah survey. Teknik dan cara pengumpulan data adalah observasi langsung dan lembar observasi langsung.Hasil penelitian dengan penerapan metode Diskusi dapat meningkatan hasil belajar siswa kelas IV Sekolah Dasar Negeri 15 Mempawah Hilir pada Pembelajaran Ilmu Pengetahuan Sosial. Pada siklus I nilai ketuntasan siswa mencapai 13 orang siswa atau 65% dan pada siklus II mengalami peningkatan yaitu siswa yang mencapai nilai KKM sebanyak 18 orang siswa atau 90%. peningkatan dari siklus I ke siklus II yaitu sebesar 25%. Kata kunci : Aktivitas belajar, Metode Eksperimen, Pembelajaran Ilmu Pengetahuan Alam. Abstract: The purpose of this study was to determine whether the application of the discussion method can improve student learning outcomes in the teaching of Social Sciences grade IV Elementary School 15 Mempawah Hilir. The methods used in this study are the method descriptive. Form of research is survey. Techniques and ways of collecting data is direct observation and observation sheets live. velue research with the application of the method can improve learning outcomes Discussion grade IV Elementary School 15 Mempawah Hilir in Social Science Education. In the first cycle of students achieving mastery value 13 students or 65% and the second cycle increased ie students who reached the KKM many as 18 students or 90%. Improvement from the first cycle to the second cycle is equal to 25%

    Ethylenediamine modified rice hull as a sorbent for the removal of Basic Blue 3 and Reactive Orange 16

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    The potential of ethylenediamine modified rice hull to remove both basic and reactive dyes from aqueous solutions was studied. Equilibrium sorption data could be fitted into Langmuir and Brunauer-Emmett-Teller isotherm models. Sorption was enhanced by 4.5- and 2.4-fold for Basic Blue 3 and Reactive Orange 16, respectively, in binary dye solutions compared to single dye solutions. Column studies revealed that breakthrough was bed-depth, flow-rate and influent-concentration dependent. Unusual breakthrough curves were obtained for Reactive Orange 16, with very rapid initial breakthrough followed by complete retention at low flow rate, influent concentration and high bed depth. The breakthrough curves of Basic Blue 3 followed the typical S shape of packed-bed systems. Theoretical breakthrough curves at different bed depths and flow rates generated by the two-parameter mathematical model agreed well with the experimental data of single dye solution of Basic Blue 3

    Some aspects of the biology of 'ikan kelabau' Osteochilus melanopleura (Bleeker)

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    This study reports on the biology of 'ikan kelabau', Osteochilus melanopleura, a popular indigenous food fish. The length-weight relationship of this fish can be expressed by the equation, Log W = 3.0596 Log L -4.5330. The condition factor was higher during the dry season than during the wet. None of the stomachs examined were empty, suggesting that the fish feeds actively throughout the year. The guts of the juvenile fishes showed substantial quantities of green algae and phytoplankton. Both the maturing and adult 'ikan kelabau' are predominantly herbivores. There is no significant variation in the kinds of good consumed by the various size groups. It was observed that females reached sexual maturity at 290 mm (total length) and the males at 260 mm. This was verified by the histological examination of the gonads. The developmental stages of the oocytes indicated that spawning took place during the wet months between November and March with a peak in February. The gonadosomatic index reached a maximum of 3.1 during this month

    Peningkatan Kemampuan Berbicara Pembelajaran Bahasa Indonesia dengan Teknik Bercerita (Story Telling) pada Sekolah Dasar

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    The purpose of this research is to improve speaking abiliti in Indonesian Language learning at Fourth grade SDN 1 Sayan by story telling technique. The research uses descriptive method. The result of this research from the first cycle is 52,02. While from the second cycle is 72,41. This result show that there is improvement in the second cycle in the amount of 18,39. Minimum Completeness Criteria for Indonesian Lenguage lesson at fourth grade SDN 1 Sayan is 65,00. The research can conclude that story telling can improve speaking skill in Indonesian Language Learning at fourth grade SDN 1 Sayan

    4convective heat transfer in the boundary layer flow of a maxwell fluid over a flat plate using an approximation technique in the presence of pressure gradient

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    In this study, the effect of pressure gradient have been included for heat transfer in the boundary layer flow of Maxwell fluid over a flat plate.The solution of the problem is obtained with an application of algorithms of Adams Method (AM) and Gear Method (GM) with Homotopy Perturbation Method (HPM) as an approximation technique. This technique shows the outcomes of pressure gradient (m), Deborah number (β) and Prandtl number (Pr) in the boundary layer flow on temperature and velocity profiles, also the momentum and thermal boundary layer thickness and discussed. To obtain this objective, the momentum and energy equations of Maxwell are solved. The outcomes of HPM in the absence of relaxation time (λ) or Deborah number (β) and pressure gradient (m) (i.e. λ = β = m = 0) at Prandtl number Pr = 1 are in closed relation with the numerical results having the value of η∞ is around 5. Also it is found that the system is convergent, as a whole momentum and thermal boundary layer thicknesses becomes thinner and thinner. Importantly, some cooling effects of the Maxwell fluid over a flat plate for energy profile have been observed
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