Monitoring properties of nanocomposites on base epoxy

Předkládaná bakalářská práce se zabývá studiem nanotechnologií v oblasti kompozitních materiálů (nanokompozitů). Dále pak výrobou, složením a elektrickými vlastnostmi těchto materiálů. Vzorky pro experiment jsou vyrobeny z epoxidové pryskyřice jako matrice a oxidu titaničitého TiO2 jako plniva s různým hmotnostním procentem plnění. Jsou proměřovány teplotní závislosti permitivity, ztrátového činitele a vnitřní rezistivity.The present thesis deals with the study of nanotechnology in the field of composite materials (nanocomposites). Furthermore, the production, composition and electrical properties of these materials. Samples for the experiment are made of epoxy resin as matrix and titanium dioxide TiO2 as fillers with different benefits. Are the measurements the temperature dependence of permittivity, loss factor and internal resistivity.

Ag-Drainage Wells and Groundwater Quality

Iowa agriculture benefits from two important natural resources, the rich soils that blanket the landscape and sufficient precipitation, in most years, to produce large crop yields. While precipitation is essential to farmers, many of Iowa\u27s soils, especially in the northcentral part of the state, are poorly drained and at times contain excess water that can hinder field operations or ruin crops. In these areas, farm fields are often artificially drained by buried tile lines leading to ditches or to streams. Another, but less common, method is the agricultural drainage well, a shaft which funnels excess water directly underground. The upper parts of these wells are fed by tile lines; other wells also are designed to receive surface runoff. Ag-drainage wells are usually 5 to 10 inches in diameter and are cased from the land surface to the top of bedrock. They vary in depth from 30 to over 300 feet. There is currently no accurate count of these wells in Iowa, but most estimates suggest 600 to 700 with the greatest concentration in Humboldt, Pocahontas and Floyd counties

Tambang Batu Bara Oranje Nassau, Kalimantan Selatan, Dalam Pandangan Arkeologi Industri

Abstract. Oranje Nassau Coal Mine, South Kalimantan, in view Industrial Archaeology. Coal mining activities in Indonesia started in the 19th century. In the paper is presented archaeologicalremains on the site of the oldest coal mine in Indonesia, which is the Oranje Nassau coal mine. The site is located in the village of Pengaron, District Pengaron, Banjar regency, South Kalimantan. Thechronology of the site is 1849 (mid-19th century). Oranje Nassau is a coal mine operated by the Dutch government. When established, the mine occupied the territory of the Sultanate of Banjarmasin. Theintent of this paper is to provide an overview of the early industrial development in Indonesia through the oldest coal mine, Oranje Nassau, while the purpose is to identify the type, function, and therelationship between the remains of coal mines by using the approach of Industrial Archaeology. The method used is descriptive, historical and contextual analyses. The results have been obtained by theidentification of the relics of the ancient coal mine dating from the Dutch East India period. The relics of the coal mine are part of the coal mining activity facilities such as monumental building to put themachine, the coal pit wells, hallways, tunnels, floors made of brick, and iron wheels. Based on the survey results, it is revealed that coal mining is a technology that comes from outside, or technologyimported from Europe, not originated in Indonesia. Abstrak. Aktivitas pertambangan batu bara di Indonesia dimulai pada abad ke-19. Dalam tulisan ini dikemukakan tinggalan arkeologi dari situs tambang batu bara tertua di Indonesia, yakni tambang batu bara Oranje Nassau. Lokasi situs berada di Desa Pengaron, Kecamatan Pengaron, Kabupaten Banjar, Provinsi Kalimantan Selatan. Kronologi situs berasal dari tahun 1849 (abad ke-19). Oranje Nassau merupakan tambang batu bara yang diusahakan oleh pemerintah Hindia Belanda.Ketika didirikan, lokasi tambang itu menempati wilayah milik Kesultanan Banjarmasin. Tulisan ini bermaksud memberikan gambaran mengenai awal perkembangan industri di Indonesia melalui tambang batu bara tertua Oranje Nassau. Adapun tujuan tulisan ini adalah mengidentifikasi jenis, fungsi, dan hubungan antar tinggalan tambang batu bara dengan menggunakan pendekatan Arkeologi Industri (Industrial Archaeology). Metode yang digunakan adalah deskriptif, historis, dan analisis kontekstual. Hasil yang telah diperoleh yakni teridentifikasinya peninggalan-peninggalan tambangbatu bara kuno berasal dari masa Hindia Belanda. Peninggalan-peninggalan tersebut merupakan fasilitas kegiatan penambangan batu bara seperti bangunan monumental untuk menempatkan mesin, sumur lubang galian batu bara, lorong, terowongan, lantai dibuat dari bahan bata, dan roda besi. Berdasarkan hasil penelitian diketahui bahwa tambang batu bara merupakan teknologi yang berasaldari luar atau teknologi yang diimpor dari Eropa, bukan asli Indonesia

Situs Pantai Lhok Cut dan Lubuk Sebagai Pelabuhan Kosmopolitan di Selat Malaka Abad ke 13-15: Sites Lhok Cut and Lubuk Coast as a Cosmopolitants Port in The Malacca Strait 13-15 th Century

Abstrack. Sites Lhok Cut and Lubuk Coast as a Cosmopolitants Port in The Malacca Strait 13-15 th Century. The maritime territory of Indonesia provides a lot of data on ancient ports along its coast. This paper discusses Ssites Lhok Cut  and Lubuk Coast, in the Lamreh coast region, Aceh Besar, as an example of a cosmopolitan port around the Straits of Malacca in the 13-15th century. The Malacca Strait since the beginning of our era was a busy international shipping lane connecting India and China. Long-distance trade shipping activities between the western and eastern hemispheres have led to the emergence of ports both on the coast of the country of origin, destination, and also on the coast between the country of origin and the destination of commercial shipping.Indonesian territories are maritime, providing ancient port data. This paper discusses the Lhok Cut and Lubuk Coast Sites, in the Lamreh coast region, Aceh Besar, as a cosmopolitan port in the Malacca Strait of the 13-15th century. Long-distance trade voyages between China-India-Arabs through the Straits of Malacca stimulate the emergence of cosmopolitan-style ports. This paper aims to uncover the geographical factors that support it as a port in the Straits of Malacca in the era of 13-15th century shipping trade. The problems to be solved are (1) what is the geographical location of the Lhok Cut and Lubuk coast, (2) is the Lhok Cut and Lubuk Coast Site a cosmopolitan port in the 13-15th century? Through the literature study phase, field study, and Maritime Archeology approach, it was revealed that maritime geography and natural resource potential were the supporting factors for the emergence of ports on the Lhok Cut and Lubuk coast, in the Lamreh coast area. Lamreh was formerly known as Lamuri (Lambri), a country and port on the north coast of Aceh, Sumatra. Strategic position on a shipping lane, cosmopolitan in character, visited, inhabited by people from different parts of the world with different cultur

PERBANDINGAN TINGKAT VO2 MAX SISWA YANG MENGIKUTI KEGIATAN EKSTRAKURIKULER BOLAVOLI DENGAN EKSTRAKURIKULER BOLA BASKETDI SMA NEGERI 1 DRIYOREJO

Abstrak Kegiatan ekstrakurikuler merupakan kegiatan untuk mengembangkan bakat siswa sesuai dengan minatnya. Pada kegiatan yang positif dan dapat lebih memperkaya keterampilan, memperluas wawasan, daya kreativitas, jiwa sportivitas, meningkatkan rasa percaya diri. Akan lebih baik lagi apabila siswa mampu memberikan prestasi yang gemilang di luar sekolah sehinggadapatmengharumkan nama sekolah. Melalui program yang ditetapkan, tersedia kesempatan bagi siswa semua untuk berlatih dan mengembangkan bakat serta meningkatkan VO2 max. Kegiatan ekstrakurikuler bolavoli dengan ekstrakurikuler bola basket mempunyai beberapa kesamaan dalam gerakannya itu ekstrakurikuler bolavoli gerak dasar passing atas hamper sama dengan gerak dasar passing atas bola basket yaitu gerakan overhad pass. Bolavoli untuk melatih latihan lompat saat smash dan bola basket untuk melatih jump ball dan lay up. Inti dari ekstarkurikuler bola basket dan ekstrakurikuler bolavoli adalah untuk melatih ketangkasan tangan  yang di dominan di gunakan dalam permaianan.Oleh karena itu rumusan masalah yang diajukan yaitu Adakah hubungan antara VO2 max dengan kegiatan ekstrakurikuler bola voli pada SMAN 1 Driyorejo?, Adakah hubungan antara VO2 max dengan kegiatan ekstrakurikuler bola basket pada SMAN 1 Driyorejo?, Adakah perbedaan antara VO2 max dengan kegiatan ekstrakurikuler bola voli dengan bola basket pada SMAN 1 Driyorejo?. Metode yang digunakan dalam penelitian ini adalah menggunakan analisis deskriptif dengan pendekatan kuantitatif. Hasil penelitian menunjukkan bahwa tidak terdapat perbedaan yang signifikan nilai VO2Max siswa yang mengikuti ekstrakurikuler bolavoli dengan bolabasket dibuktikan dengan hasil hitung uji t yaitu nilai Sig. >alpha (0,411 > 0,05). Berdasarkan nilai mean dari kedua kelompok, siswa yang mengikuti ekstrakurikuler bolabasket memiliki nilai VO2Max lebih tinggi dibandingkan siswa yang mengikuti ekstrakurikuler bolavoli dengan beda sebesar 2,267. Kata Kunci : VO2 Max, Ekstrakurikuler, Bola Voli, Bola Basket Abstract Extracurricular activities are activities to develop the talent of the students according to their interests. On a positive activity and can further enrich the skills, broaden horizons, creativity, spirit of sportsmanship, improve self-esteem. It would be better if the student is able to give a glorious achievement outside of school so it can be the name of the school. Through the set, provided an opportunity for all students to practice and develop their talents and to increase VO2 max. Extracurricular activities volleyball to basketball has some similarities in movements of extracurricular volleyball basic motion passing on almost the same as the basic motion of passing on basketball ieoverhad movement pass. Volleyball for training exercises when the jump smash and basketball to train jump ball and lay up. The essence of extracurricular basketball and volleyball is to train agility in the dominant hand is used in games. Therefore, the proposed formulation of the problem is there any relationship between VO2 max with extra curricular activities volleyball at SMAN 1 Driyorejo?, Is there a relationship between VO2 max with extracurricular activities basketball at SMAN 1 Driyorejo?, Are there differences between VO2 max with extracurricular activities volleyball with basketball at SMAN 1 Driyorejo?. The method use din this research his using descriptive analysis with quantitative approach. The results showed that there was nosignificant difference in VO2 max values of students who take extracurricular volleyball to basketball evidenced by the results of the t test calculated that the Sig. >alpha(0.411>0.05). Based on the mean values of the two groups, the students follow basketball extracurricular VO2 max values higher than students  take the difference of extracurricular volleyball with 2,267. Keywords : VO2 Max, Extracurricular, Volleyball, Basketbal

Equitable Fulfillment of Access to Justice for the Poor in Riau Province of Indonesia

The uneven distribution of Legal Aid Organizations in Riau Province is a problem that must be discussed regarding the obstacles and constraints. Whereas the Legal needs of the poor in Riau Province are very numerous. There are still a number of districts in Riau province where poor people get difficulties to find the legal aid providers who are willing to help them when experiencing legal cases. Riau province itself is facing difficulty regarding the prevalence of the spread of Legal Aid Organizations/legal aid agencies accredited since many Legal Aid Organizations are located in big cities. This circumstance makes the access to help the poor in the district difficul

Hydrologic impacts of biofuel expansion in the Ivinhema basin, Brazil

textBrazil produces approximately a quarter of the world's yearly ethanol demand, making it a global leader in biofuel production. The repercussions for local water resources in areas of intensive biofuel expansion, however, remain uncertain. The purpose of this study is to assess the effects of various land-use scenarios on water sustainability in Brazil, specifically the Ivinhema basin. This basin, located in Southern Mato Grosso do Sul, has experienced extensive sugarcane expansion since the mid-1990s – a trend that is expected to continue in the short to medium term. To achieve the goals of the study, I used the Stockholm Environment Institutes' Water Evaluation and Planning software (WEAP), specifically, the Soil Moisture Method, to model hydrologic processes in the Ivinhema basin from 1990-2013. The study has two parts. The first part focuses on model calibration in a data poor environment. To circumvent poor data quality, I examined the effects on model accuracy of a number data processing methods for land-use, precipitation, and ethanol production data. A total of 8 different calibration scenarios were run using these different data inputs, which I evaluated for accuracy using Nash-Sutcliffe Model Efficiency coefficients. Those producing the best results were used as a baseline for part two. The second part of the study uses the baseline model developed in part one to investigate the crop yield and stream flow effects under three different irrigation and ethanol production scenarios. Water consumption for the ethanol production process has little impact on stream flows, with daily demand peaking at 0.7 percent of baseline flows. Irrigation, however, massively reduces flows -- when irrigation is limited to only sugarcane, flow reductions of over 60 percent only occurs on 1.98 percent of days, while reductions of up to 100 percent during the dry season. Despite these large flow reductions, sugarcane yield increase from irrigation was only 7-14 percent over the study period.Energy and Earth ResourcesGlobal Policy Studie