Abstrak. Otomasi adalah sebuah proses yang secara otomatis mengontrol operasi mekanik dan perlengkapan atau juga elektronika dapat menggantikan manusia dalam mengamati mengambil keputusan. Sistem kontrol bagian otak pikiran dari keseluruhan suatu sistem. tersusun komputer, rangkaian elektronik sederhana, peralatan mekanik. Penerapan sistem hidroponik tidak terlepas nutrisi tanaman, biasanya dia...

The use of speleothems to reconstruct past climatic and environmental change through chemical proxies is becoming increasingly common. Speleothem chemistry is controlled by hydrological and atmospheric processes which vary over seasonal time scales. However, as many reconstructions using speleothem carbonate are now endeavouring to acquire information about precipitation and temperature dynamic...

A system of midseason prediction of winter wheat grain yield based on sensed plant growth properties has been established. However, little research has been conducted to determine the relationship of grain yield, sensed plant data, and soil electrical conductivity (EC). This study was carried out to determine if soil EC could be useful in better predicting wheat grain yield. During 2001 and 200...

The compounds, lanthanium chromite, lanthanium magnetite and lanthanium ferric oxide were prepared through sol-gel methods in powdered form, then calcinated, peletized, and sintered at various temperatures. Electrical conductivity of these compounds was measured at various temperatures. The effectiveness of strontium as a dopant on electrical conductivity was also investigated. Electrical condu...

Authors reported an effective path to increase the electrical conductivity while to decrease the thermal conductivity, and thus to enhance the ZT value by nano-inclusions. By this method, the ZT value of Nb-doped SrTiO3 was enhanced 9-fold by yttria stabilized zirconia (YSZ) nano-inclusions. YSZ inclusions, located inside grain and in triple junction, can reduce the thermal conductivity by effe...

Key Laboratory of Modern Precision Agriculture System Integration Research, Ministry of Education, China Agricultural University, Beijing 100083, China. *Email: [email protected] ABSTRACT: The soil electrical conductivity (EC) refers to the capability for soil to conduct current. It is a comprehensive reflection of soil salinity and moisture. Therefore, acquiring soil EC rapidly and accurately ca...

It is well known that growth and yield of horticultural crops can be greatly increased by optimizing the nutritional status of the root environment. Based on plant response, involving numerous fertilizer experiments for the different plants and substrates involved, guidelines can be proposed for optimal nutrient solution and pot substrate conditions. The main factors to be considered are sampli...

Two batch experiments were conducted during the months of June-July (summer) and September-October (fall) to determine the effect of Electrical Conductivity (EC) on nutrient and COD removal & uptake efficiency and growth of duckweed (Lemna minor) at leachate with various EC levels (500-3,000 μS cm -1 ) under the natural climatic conditions of Islamabad, Pakistan. Maximum removal rates (mg m -2 ...

0