Abstract Drought is one of the problems faced by people Lembor Village, Lamongan Regency, this problem will be slightly resolved if area has reserves groundwater sources. Therefore, study aims to determine existence potential sources around Village. The method used geoelectrical resistivity schlumberger configuration. Data acquisition was carried out for 10 measuring points Vertical Electrical ...

Kedungpedaringan is a village that included in the Kepanjen sub-district, Malang Regency, with area of about 2 km2 . The lack groundwater availability can be used for residents around this and development tourist villages encourages research. Investigation aquifers containing has been carried out using geoelectric method Schlumberger configuration. Three datum points were acquired to West Brant...

Uniform linear array (ULA)-based tapped-delay line (TDL) structure has good performance metrics when the signal sources are located at the middle angles. It offers poor performance when the signal sources are close to the array endfire. In this paper, a new approach is proposed which offers higher performance and desired beamforming on TDL structure when the wideband uncorrelated radio sources ...

gamma camera is an important apparatus in nuclear medicine imaging. its detection part is consists of a scintillation detector with aheavy collimator. substitution of semiconductor detectors instead of scintillator in these cameras has been effectively studied. in this study, it is aimed to introduce a new design of p-n semiconductor detector array for nuclear medicine imaging. a p-n semiconduc...

let $a_1$, $a_2$ be unital banach algebras and $x$ be an $a_1$-$a_2$- module. applying the concept of module maps, (inner) modulegeneralized derivations and  generalized first cohomology groups, wepresent several results concerning the relations between modulegeneralized derivations from $a_i$ into the dual space $a^*_i$ (for$i=1,2$) and such derivations  from  the triangular banach algebraof t...

In the recent years, the optimization techniques using evolutionary algorithms have been widely used to solve electromagnetic problems. These algorithms use thinning the antenna arrays with the aim of reducing the complexity and thus achieving the optimal solution and decreasing the side lobe level. To obtain the optimal solution, thinning is performed by removing some elements in an array thro...