Judul: Pembuatan Automatic Rain Recorder untuk Pengukuran Curah Hujan Menggunakan Microcontroller ATmega8
Abstrak: Penelitian ini dilakukan untuk merancang prototype penakar hujan otomatis atau yang lebih dikenal dengan sebutan automatic rain recorder (ARR) dengan akurasi yang diperoleh dari hasil pengujian adalah 88,3%. ARR terdiri dari Microcontroller ATmega8 sebagai CPU (central processing unit) serta akuisisi data. Pewaktuan lokal menggunakan RTC (real time clock) serial dengan dilengkapi baterai litium sebagai backup catu daya. Media penyimpan data menggunakan memori AT24C256 dengan kapasitas hingga 32 Kbyte. Komunikasi dengan komputer menggunakan jalur serial RS232 untuk mengatur waktu RTC dan mengunduh data dari memori . Sensor sebagai penakar curah hujan menggunakan jenis tipping bucket dengan resolusi alat sebesar 0.2 mm. Air hujan yang masuk ke dalam penampung pada tipping bucket menghidupkan read switch dan memberikan logika high pada Microcontroller.
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Judul: Rancangan dan Uji Coba Otomatisasi Irigasi Kendi.
Abstrak: Development of science and technology today make automatic control have important role. It gives us ease to get performance in dynamic system. Automatic control be able to less routine work that operator always do. Automatic control tools have many kinds. Microcontroller ATMega328P is a kind of automatic control. The function is control and record data then save it. Automatic pitcher irrigation system constructions consist on hardware and software. Hardware consist on water level sensor and soil moisture sensor series, microcontroller, stackable SD card shield, real time clock, relay, battery and solenoid valve. Software is a program for microcontroller that used C/C++ language. Each sensor will be calibrated before use. Daily high water level and soil moisture data was data obtained. The data was obtained each 5 minutes. Data in microcontroller was obtained by record data on memory that was set in microcontroller. Calibration results express that microcontroller capability in monitoring high water level and soil moisture has high accuracy. Determination Coefficient calibration equation from the sensor is 0.955 for high water level sensor and 0.887 for soil moisture sensor. Furthermore, set point for control high water level is 5 cm for bottom margin and 14 cm for top margin.
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Judul: Dampak Liberalisasi Perdagangan dan Peningkatan Permintaan Pariwisata terhadap Kinerja Ekonomi Makro dan Sektoral di Indonesia
Abstrak: The liberalization will offer renewed and enhanced opportunities to increase productivity and raise incomes. There are several bilateral and regional agreements on trade liberalization, such as the ASEAN-China Free Trade Area (ACFTA), and the Association of Southeast Asian Nations (ASEAN) FTA. The end-goal of economic integration is establishing the ASEAN Economic Community as outlined in ASEAN Vision 2015. Consequently, there is a free flow of goods, services and investment, a free flow of capital as well as equitable economic development, and reduced poverty and socio-economic disparities in the ASEAN region. This study is examined the economy-wide impact of trade liberalization for the Indonesian economy by using the Computable General Equilibrium (CGE) model. The impact of liberalization is examined via tariff reductions, combination tariff reduction and tourism growth. Tourism is a growing and important industry in both developed and developing countries. It is also an important source of earning foreign exchange and provides employment opportunities for domestic labor. Generally, tourist consumption in the receiving country is predominantly of non-traded goods and services. Tourism is increasingly becoming a significant part on global trade. It is one of the top five export categories, and accounted for almost 83 percent of countries in the world. According to the Indonesia Tourism Satellite Accounts 2009, total economic transaction created by tourism activity in 2009 reached Rp504,69 trillion or 4,80 percent of total output. This study has shown that liberalization combined with tourism growth can, in fact, reduce the domestic price level and increase the amount of foreign trade and availability of products in the domestic economy, thereby stimulating further production. The result of this study is improved the Indonesia’s macroeconomic performance and welfare, as domestic absorption, and household consumption increase. Tourists are also better off for they can consume more, given their spending level, and also benefit from the greater availability of products. The trade balance deficits are of concern, indicating the need for appropriate accompanying policies, such as the tourism promotion and investment in infrastructure, underpinned by the growing service sector.
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