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"A brief Introduction of steel cladding failures under wind uplift load. Explaining the importance of roof and wall cladding system to support the structural integrity of the whole structure during the cyclone or storm events. The objective of this thesis is to develop a dimensionless formula for predicting pull-out failure under wind uplift loading. Chapter two presents the behaviour of steel roofing systems under wind uplift loading/suction. It also describes the types of cladding, connection, and failure mechanism of the roofing systems. Chapter three and four Presents a review of previous literature published on pull-out and pull-through strength of steel roofing systems subjected to wind uplift/suction. Chapter five presents the detailed analysis to determine the pull out strength of steel roof claddings using Buckingham theorem, excel spreadsheet and solver program."

"ABSTRAKKabupaten Karawang merupakan salah satu kabupaten di Indonesa yang memiliki wilayah pesisir terpanjang, dengan panjang sebesar 76,42 Km dan luas wilayah pesisir sekitar 1.168,85 km2. Proses dominan yang terjadi di pesisir Kabupaten Karawang adalah abrasi dan garis pantai  mundur antara 50-300 meter ke arah.  Tujuan penelitian ini untuk mengetahui besar perubahan garis pantai yang terjadi di Kabupaten Karawang menggunakan citra Landsat  multi-waktu dengan pendekatan pasang-surut. Hasilnya Perubahan garis pantai lebih dinamis ketika periode 1999-2009 dengan luas abrasi sebesar 8611954m2 dan akresi sebesar 5471645m2. Hal ini dikarenakan pada periode tersebut berada pada dua jenis pasang surut yang berbeda, dimana pada tahun 1999 terjadi mixed-semidiurnal (Condong Ganda),  sedangkan untuk tahun 2009 pasut jenis mixed-diurnal (Condong Tunggal). Kemudian untuk periode 2009-2019 berada pada jenis pasut yang sama yaitu pasut jenis mixed-diurnal (Condong Tunggal) yang menyebabkan garis pantai terdeteksi mengalami sedikit perubahan.  Masing-masing segmen mengalami perubahan garis yang berbeda-beda pada tiap periode penelitian karena adanya variasi kemiringan, tutupan lahan dan morfologi muara sungai.

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ABSTRACTKarawang Regency is one of the districts in Indonesia which has the longest coastal area, with a length of 76.42 km and an area of around 1,168.85 km2 of coast. The dominant process that occurs on the coast of Karawang Regency is abrasion and the coastline retreating between 50-300 meters in a direction. The purpose of this study was to determine the extent of shoreline changes that occurred in Karawang Regency using multi-time Landsat imagery with a tidal approach. The result Changes in the shoreline were more dynamic during the period 1999-2009 with an abrasion area of 8611954m2 and an accretion of 5471645m2. This is because during that period there were two different types of tides, where in 1999 there was a mixed-semidiurnal (Double Leaning), while in 2009 the tide was mixed-diurnal (Leaning Tunggal). Then for the period 2009-2019 there was the same type of tide, namely the mixed-diurnal type tide (Leaning Tunggal) which caused the detected coastline to experience slight changes. Each segment experienced different line changes in each study period due to variations in slope, land cover and river estuary morphology."

"Bencana banjir merupakan bencana yang hampir setiap tahun selalu terjadi di Jakarta, dimana berbagai macam daya dan usaha telah dilakukan pemerintah untuk mencegah dan mengantisipasi bencana ini. Banyak penelitian ndash; penelitan sebelumnya telah menganalisa mengenai faktor-faktor penyebab banjir, namun belum banyak yang melakukan studi komperhensif mengenai keterkaikan faktor-faktor tersebut dan menggabungkannya ke dalam suatu analisa komperhensif. Penelitian ini menggabungkan beberapa faktor penyebab banjir yaitu intensitas curah hujan, tinggi pasang surut muka air laut, elevasi, dan koefisien limpasan air permukaan runoff akibat pola penggunaan lahan menjadi satu dan menganalisanya menggunakan regresi linear berganda Multiple Linear Regression dan regresi pembobotan geografis Geographic Weighted Regression untuk mengetahui berapa besar signifikansi faktor-faktor penyebab banjir tersebut, berikut besar koefisien masing-masing faktor dan dimana wilayah dengan kerentanan banjir tertinggi berdasarkan pola penggunaan lahannya.

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Jakarta, as the Capitol City of Indonesia is also one of the most flooded area in Indonesia 1 . The floods were occurred annually and heavy floods were usually occurred once in few years. This paper will address the geographic distribution of floods and statistical analysis of the flood's causes using rain intensity, tidal height, elevation, and floods occurrence as the parameters in Angke and Penjaringan District, located in Northern Jakarta where the floods hit the most. Based on the calculation using Linear Regression, it's observed that rainfall intensity, remaining water inundation from previous flood, and land runoff coefficient as the main factor of flooding in the area."

"Penelitian ini dilakukan di Daerah Irigasi Rawa Pasang Surut Karang Agung Hilir yang berada di dalam wilayah Kabupaten Banyuasin dan Kabupaten Musi Banyuasin. Tujuan dilakukannya penelitian ialah untuk menganalisis pengaruh pasang surut terhadap pola tata tanam, kebutuhan air dan ketersediaan air eksisting. Berdasarkan data rencana tata tanam dari Dinas PSDA Provinsi Sumatera Selatan terdapat dua kali masa tanam yang dapat ditanami padi-padi, palawija-palawija dan tanaman keras (kelapa). Pada penelitian ini dilakukan analisis berdasarkan kondisi eksisting dan analisis hidrotopografi dengan menggunakan Arc-Map dan MOD-LSQ. Pada kondisi eksisting ketersediaan airnya hanya dipengaruhi oleh curah hujan sehingga mengalami defisit sedangkan berdasarkan hasil analisis hidrotopografi, Daerah Irigasi Rawa Karang Agung Hilir terbagi menjadi tiga tipe yaitu A, B dan C. Melalui neraca air dapat diketahui bahwa lahan pasang surut tipe A dan B terjadi surplus karena dipengaruhi oleh tinggi muka air dari pasang surut Muara Sungai Lalan. Sementara itu, untuk lahan pasang surut tipe C terjadi defisit karena lahan tidak terluapi air pasang sepanjang tahun dan tanah di D.I.R Karang Agung Hilir mengandung gambut sebesar 50≤100 cm dan tergolong masam hingga sangat masam karena memiliki kisaran pH 3,50-5,45. Kedalaman piritnya termasuk kedalam kategori dangkal hingga sedang.

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This research was conducted in the Karang Agung Hilir Tidal Swamp Irrigation Area which is located in the Banyuasin Regency and Musi Banyuasin Regency. The purpose of the study was to analyze the effect of tides on cropping patterns, water requirements and water availability. Based on the data cropping-pattern plan from the Dinas PSDA Sumatera Selatan, There are two planting periods that can be planted with paddy-paddy, palawih=ja-palawija and coconut. In this study, analysis was carried out based on existing conditions and hydrotopographic analysis using Arc-Map and MOD-LSQ. In the existing condition, the availability of air is only influenced by rainfall so that it experiences a deficit based on the results of hydrotopographic analysis, the Karang Agung Hilir Swamp Irrigation Area is divided into three types, namely A, B and C. Through the water balance it can be seen that the tidal land types A and B are surplus. because it is influenced by the water level from the ebb and flow of the Lalan River Estuary. Meanwhile, for tidal land type C, there is a deficit because the land is not flooded with tidal water throughout the year and the soil in Karang Agung Hilir DIR contains peat of 50-100 cm and is classified as acidic to very acidic because it has a pH range of 3.50-5.45. . The depth of the pyrite belongs to the shallow to medium category."