Seismic Hazard Assessment For Peninsular Malaysia Using Gumbel Distribution Method

This Paper Presents The Preliminary Study On Seismic Hazard Assessment Which Involved Developing Macrozonation Map For Two Hazard Levels, I.E. 10% And 2% Probabilities Of Exceedance In 50 Years For Bedrock Of Peninsular Malaysia. The Analysis Was Performed Using Statistic Theory Of Extreme Values From Gumbel. The Analysis Covered The Earthquake Data Processing (Such As Choosing A Consistent Magnitude To Be Used In The Analysis And Identifying Main Shock Events), And Selection Of Appropriate Attenuation Relationship. Results Showed That The Peak Ground Acceleration (PGA) Across The Peninsular Malaysia Range Between 10 And 25 Gal For 10% Probability Of Exceedance, And Between 15 And 35 Gal For 2% Probability Of Exceedance In 50 Years Hazard Levels. These Values Were Lower By About 50 To 65% Than Those Obtained From Deterministic Analysis

Parametric Study of One-Dimensional Seismic Site Response Analyses Based on Local Soil Condition of Jakarta

Seismic site response analysis is used to estimate the response of soil deposits during seismic loading at any depth of interest and to interpret time histories as well as response spectra. This type of analysis involves many parameters that can affect the character of ground shaking. It is important to know the effect of these parameters in order to perform reliable seismic hazard evaluation at a site. This paper presents the effects of several parameters toward the characteristics of surface response spectra based on the local soil conditions of Jakarta using a one-dimensional (1-D) site response model with total stress approach. A parametric study was performed on two cohesive soil deposit profiles with a different site class, namely medium clay (site SD) and soft clay (site SE). The bedrock layers of both profiles were located at a depth of 300 m. In this study, the analytical methods implemented were the equivalent-linear method and the non-linear method. Several different dynamics soil models were also implemented. In addition, variation of property parameters, such as depth of bedrock, shear wave velocity of bedrock, layer thickness, etc., were studied. The results of this study indicate that all of the studied parameters have a significant effect on the response spectra at the ground surface

Alternatif Pondasi Terowongan Layang Dalam Laut Untuk Prasarana Transportasi

A Submerged Floating Tunnel (SFT) is a tunnel that floats in water, supported by its buoyancy specifically by employing the hydrostatic thrust. In order to construct the foundation of the SFT, soil investigation has to be performed in advance. The soil investigation includes identification of subsurface soil profile, geotechnical index properties and parameters. Results of the soil investigation were used to he analyze and develop alternatives of the foundations for anchoring the prototype of the SFT. This paper discusses the alternatives of the foundations based on soil condition and applied tension leg. The research will be of interest to many practicing engineers and researchers regarding the subject matter

IZGLAĐENI MREŽNI SEIZMIČKI UČINAK PRIMIJENJEN ZA UPORABU ZEMLJIŠTA, STUDIJA SLUČAJA NA OTOKU KALIMANTAN, INDONEZIJA

Smoothed gridded seismicity is an analysis model in seismicity that allows for the obtaining of a rate based on the b-value and the same magnitude range. The data study has been collected and analyzed from a background source gathered by PusGen, referred to as the PusGen catalogue, with approximately 70 thousand data points. Two software programs (i.e. USGS PSHA and OpenQuake) were utilized in this study, and both programs have been proven as reliable in the creation of the 2017 Indonesia Earthquake Hazard Map. The final steps are to compare the acceleration map results with the Kalimantan Island land-use map and to analyze suitability development planning against potential hazards and earthquake risks. The results stated that: (1) acceleration due to the shallow background earthquake for the Kalimantan region, range from 0.00-0.25g (using USGS PSHA) and 0.0-0.4g (using OpenQuake); (2) meanwhile, based on the deep background earthquake source, the maximum accelerations that occur are 0.15g and 0.25g when using USGS PSHA and OpenQuake, respectively; (3) the utilized of land-use for the current and future years is in line with the results of the acceleration simulation. The study recommends to take into account the seismic aspects in new planning of the capital city, mining and residential areas in order to reduce the existing risks.Izglađeni (filtriran) mrežni seizmički učinak temelji se na analizi seizmičnosti, tj. izračunu vrijednosti b i odgovarajuće magnitude. U studiji su prikupljeni i analizirani podatci pozadinskoga izvora, prikupljeni u PusGen katalogu koji obuhvaća približno 70 000 podataka. Korištena su dva programska paketa koja su ranije pouzdano upotrijebljena kod izradbe karte potresnih rizika Indonezije 2017. godine, odnosno njihovi dijelovi nazvani USGS PSHA i OpenQuake. Završni dio računa bila je usporedba karte ubrzanja s kartom uporabe zemljišta na otoku Kalimantan te analiza daljnjega održivog razvoja s obzirom na opasnosti i rizik potresa. Dobiveni su sljedeći rezultati: (1) sila ubrzanja s obzirom plitke potrese u prostoru Kalimantana mijenja se 0 – 0,25 g (prema USGS PSHA), odnosno 0 – 0,4 g (OpenQuake); (2) temeljem dubokih seizmičkih izvora najveće ubrzanje izračunano je u intervalu 0,15 – 0,25 g (USGS PSHA, OpenQuake); (3) uporaba zemljišta, kako danas, tako i u budućnosti, treba pratiti rezultate simulacija (ubrzanja), za koje je preporučeno da postanu dio urbanoga planiranja glavnoga grada regije, ali i okolnih prostora u kojima se rudari

Penerapan Jaringan Syaraf Tiruan pada Hidung Elektronik Cerdas untuk Deteksi Daging Babi

Tingkat komsumsi daging sapi di Indonesia terus naik dari tahun ke tahun terlihat dari permintaan pasar yang terus meningkat terutama pada perayaan hari besar dan hari raya. Akan tetapi peningkatan permintaan pasar akan daging sapi masih kerap dimanfaatkan oleh oknum tak bertanggung jawab yang mencampur daging sapi dengan daging babi. berdasarkan fakta tersebut maka dibuat sebuah sistem electronic nose yang dapat membedakan antara daging sapi murni dengan daging sapi bercampur babi berdasarkan karakteristik aroma. Alat ini menerapkan jaringan syaraf tiruan (JST) backpropagation yang dilatih menggunakan aplikasi MATLAB untuk mengenali pola dari aroma sampel daging yang ditangkap menggunakan rangkaian sensor gas TGS2602, TGS2620, TGS2610 dan TGS2611, kemudian mengklasifikasikannya dalam dua kelas yaitu MURNI dan CAMPURAN. Sampel daging segar yang digunakan untuk pengujian ada 4 macam yaitu daging sapi murni, daging campuran 25%, 50% dan 75% dengan total sampel sebanyak 30 terdiri dari 15 sampel murni dan 15 sampel campuran. Dari pengujian tersebut didapat nilai akurasi, presisi, sensitivity dan specificity sebesar 100% menggunakan confusion matrix

Diabetic Retinopathy Severity Level Classification Based on Fundus Image Using Convolutional Neural Network (CNN)

Diabetic retinopathy is an eye disease and is a complication of diabetes mellitus. The longer a person suffers from diabetes mellitus, the more likely they are to experience diabetic retinopathy. Diabetic retinopathy is divided into two types, namely Non-Proliferative Diabetic Retinopathy (NPDR) with 4 phases (normal, mild, moderate and severe) and Pre-proliferative Diabetic Retinopathy (PDR). To classify the severity of this disease requires an expert doctor and takes a long time. This study applies the Convolutional Neural Network (CNN) method to fundus image input to classify the severity of diabetic retinopathy, namely mild, moderate, severe, or regular. The fundus image dataset for training and testing was taken from the APTOS 2019 dataset. The pre-processing stage of the fundus image includes: resizing, Contrast Limited Adaptive Histogram Equalization (CLAHE), and gaussian filtering. After that, classification is carried out using the CNN Model, consisting of a convolution layer, a pooling layer, a dropout layer, and a fully connected layer. The results of the CNN model implementation show a classification accuracy of 75% in the training process and 73% in the model validation process. Meanwhile, in the confusion matrix testing process, the accuracy is 68%, the precision is 69%, and the recall is 68%

Teaching English Vocabulary through Flash Game VoQuZ for Seventh Year Students of SMP 2 Gebog Kudus in the Academic Year 2012/2013.

Hendriyawan, Arif. 2012. Teaching English Vocabulary through Flash Game VoQuZ for Seventh Year Students of SMP 2 Gebog Kudus in the Academic Year 2012/2013. Skripsi. English Education Department.Teacher Training and Education Faculty, Muria Kudus University. Advisors: (i) Dra. Sri Endang Kusmaryati, M.Pd., (ii) Ahdi Riyono, SS. M.Hum. Key words: Teaching English Vocabulary, English Vocabulary Mastery, and Flash Game VoQuZ. English vocabulary is a stock list of word employed by a language group, individual or in relation, to be a subject and it is very important as the basic element of English. In language teaching English vocabulary mastery, the term vocabulary covered the development of words, the meaning and the links between them. In teaching vocabulary, teacher should use the appropriate teaching media to grab students’ attention and teaching in joyful way. The rapid development of computer and internet technology has made anyone to get closer to the world of technology especially in the use of computers in daily life. Flash Game VoQuZ is one of computer game that can be used to teach English vocabulary by gaming. The Objective of this research is to test the significance difference between the mastery of English vocabulary of the seventh year students of SMP 2 Gebog Kudus in Academic Year 2012/2013 those taught through Flash Game VoQuZ and those taught through Whiteboard. The design of this research is experimental research. The population of this research is all of the seventh year students of SMP 2 Gebog Kudus in the academic year 2012/2013. The researcher takes two classes as the samples through cluster random sampling technique. Class VII F is the Control group and VII E is the experimental group the experimental group was taught through Flash Game VoQuZ and the control group was taught through Whiteboard. The research instrument used by the researcher is test (multiple choices test with 40 items). The result of the research shows that in the level of significance 0.05 and degree of freedom 62. There is a significant difference of the English vocabulary mastery of the seventh year students of SMP 2 Gebog Kudus in the academic year 2012/ 2013 between those taught through Flash Game VoQuZ and those taught through Whiteboard. It is shown from the calculation result of t-obtained is 5.41, meanwhile the t-critical is ±2.00. In other words, the researcher rejects H0 and accepts Ha, because t (obtained) is higher than t (critical). t (obtained) = 5.41 > t(critical) = ±2.00. The English vocabulary mastery of the seventh year students of SMP 2 Gebog Kudus in the academic year 2012/ 2013 taught through Flash Game VoQuZ is very good (Mean = 85.16 and SD = 6.16). However, the English vocabulary mastery of the seventh year students of SMP 2 Gebog Kudus in the academic year 2011/ 2013 taught through Whiteboard media is good (Mean = 76.69 and SD = 6.37). Based on the result above the media of teaching English vocabulary through Flash Game VoQuZ presented in this research was proved effective. Based on this conclusion, the suggestion is given that the English teacher may teach vocabulary using game Flash-based as the media. ABSTRAKSI Hendriyawan, Arif. 2012. Mengajar Kosa Kata Bahasa Inggris melalui Flash Game VoQuZ untuk Siswa Kelas Tujuh SMP 2 Gebog Kudus di Tahun Akademis 2012/2013. Skripsi. English Education Department.Teacher Training and Education Faculty, Muria Kudus University. Advisors: (i) Dra. Sri Endang Kusmaryati, M.Pd., (ii) Ahdi Riyono, SS. M.Hum. Key words: Mengajar bahasa Inggris Kosakata, Penguasaan Kosakata bahasa Inggris, dan Flash Game VoQuZ. Kosa kata bahasa Inggris adalah daftar kata yang dipergunakan dalam bahasa, baik secara individu maupun dalam hubungan antar kata, sehingga menjadi sebuah subjek dan hal tersebut sangat penting sebagai elemen dasar dalam bahasa Inggris. Dalam pengajaran kosa kata bahasa Inggris, istilah kosakata mencakup perkembangan kosakata, makna kata dan hubungan antar kata satu sama lain. Dalam mengajar kosakata, guru harus menggunakan media pembelajaran yang tepat untuk menarik perhatian siswa dan mengajar dengan cara yang menyenangkan. Pesatnya perkembangan teknologi komputer dan internet telah membuat orang menjadi lebih dekat dengan dunia teknologi terutama dalam penggunaan komputer dalam kehidupan sehari-hari. Flash Game VoQuZ adalah salah satu permainan komputer yang dapat digunakan sebagai media dalam mengajarkan kosakata bahasa Inggris dengan cara bermain. Tujuan dari penelitian ini adalah untuk menguji perbedaan yang signifikan antara penguasaan kosakata bahasa Inggris siswa kelas tujuh SMP 2 Gebog Kudus Tahun Akademik 2012/2013 yang diajarkan melalui Flash Game VoQuZ dan mereka yang diajarkan melalui Whiteboard. Desain penelitian ini adalah penelitian eksperimental. Populasi penelitian ini adalah semua siswa tahun ketujuh SMP 2 Kudus Gebog pada tahun akademik 2012/2013. Peneliti mengambil dua kelas sebagai sampel melalui teknik cluster random sampling. Kelas VII F adalah kelompok kontrol dan VII E adalah kelompok eksperimen kelompok eksperimental diajarkan melalui Flash Game VoQuZ dan kelompok kontrol diajarkan melalui Whiteboard. Instrumen penelitian yang digunakan oleh peneliti adalah tes (multiple pilihan uji dengan 40 item). Hasil penelitian menunjukkan bahwa pada tingkat signifikansi 0.05 dan tingkat kebebasan 62. Ada perbedaan yang signifikan dari penguasaan kosakata bahasa Inggris siswa tahun ketujuh SMP 2 Gebog Kudus pada tahun akademik 2012/2013 antara mereka diajarkan melalui Flash Game VoQuZ dan mereka yang diajarkan melalui Whiteboard. Hal ini ditunjukkan dari hasil perhitungan t (obtained) yang diperoleh adalah 5.41, sedangkan t (kritis) adalah ±2.00. Dengan kata lain, peneliti menolak Ho dan menerima Ha, karena t (obtained) lebih tinggi dari t (kritis). t(obtained) = 5.41 > t(kritis) = ±2.00. Penguasaan kosakata Inggris siswa kelas tujuh SMP 2 Gebog Kudus pada tahun akademis 2012/2013 yang diajarkan melalui Flash Game VoQuZ adalah sangat baik (Mean = 85.16 dan SD = 6.16). Sedangkan, penguasaan kosakata Inggris siswa kelas tujuh SMP 2 Kudus Gebog pada tahun akademis 2011/2013 yang diajarkan melalui Whiteboard adalah baik (Mean = 76.69 dan SD = 6.37). Berdasarkan hasil di atas media pengajaran kosa kata bahasa Inggris melalui Flash Game VoQuZ disajikan dalam penelitian ini terbukti efektif. Berdasarkan kesimpulan tersebut, saran yang diberikan kepada guru Bahasa Inggris supaya dapat mengajarkan kosakata menggunakan permainan terutama permainan berbasis Flash sebagai media

An Overview of Soil Models for Earthquake Response Analysis

Earthquakes can damage thousands of buildings and infrastructure as well as cause the loss of thousands of lives. During an earthquake, the damage to buildings is mostly caused by the effect of local soil conditions. Depending on the soil type, the earthquake waves propagating from the epicenter to the ground surface will result in various behaviors of the soil. Several studies have been conducted to accurately obtain the soil response during an earthquake. The soil model used must be able to characterize the stress-strain behavior of the soil during the earthquake. This paper compares equivalent linear and nonlinear soil model responses. Analysis was performed on two soil types, Site Class D and Site Class E. An equivalent linear soil model leads to a constant value of shear modulus, while in a nonlinear soil model, the shear modulus changes constantly,depending on the stress level, and shows inelastic behavior. The results from a comparison of  both soil  models  are  displayed in the form of maximum acceleration profiles and stress-strain curves