Çelik Tarimci

Modification Methods of Blank Pistols in Turkey in 2006

Abstract:  This study describes the modification methods of blank cartridge firing pistols in Turkey. We have examined cases submitted to the Aydın Regional Criminal Laboratory of Turkey in 2006. In total, 95 modified pistols and 300 modified cartridges were examined. The blank cartridge firing pistols are guns which look similar to “real” pistols, however, there are blockages in their barrel in order to prevent the discharge of a bullet. However, as a result of simple modifications, these pistols can be easily converted into “real” firearms. Studied modification methods are removing the obstruction from the barrel, removing the partial obstruction from the barrel, sleeving a smaller diameter tube into the original barrel, using a replacement barrel, and rifling the original barrel. Special cartridges for these modified pistols are also produced. These modified pistols and cartridges were evaluated in respect of the converting methods.

Modified Shotguns in Turkey from 2006 to 2008

Abstract:  This study investigates the legal status of modified shotguns in Turkey by examining the cases submitted to the Aydın Regional Criminal Laboratory between January 2006 and August 2008. A total of 351 shotguns used in crimes were examined. These guns were evaluated in respect of their type, size, caliber, fitness for use, and legal classification. Eleven percent of these shotguns had been modified and it was found that 55% of the modified shotguns were classified according to law 6136 and qualified as a pistol and 45% were classified according to law 2521 and qualified as nonstandard shotguns. Within the Turkish criminal justice system, a nonstandard shotgun attracts a less stringent sentence than a pistol. It would therefore appear that this sentencing structure is considered when modifying shotguns in Turkey. This is clearly a loop‐hole in the legislation that could perhaps be investigated and closed.

Determination of thermal annealing effect in intrinsic a-Si:H film

Abstract In this study, the bias annealing effect on the density of state (DOS) in amorphous silicon film on single crystalline of silicon was investigated by means of Au/a-Si:H/c-Si/Al heterostructure. In order to fabricate the structure, at first, a-Si:H film was coated on a single crystalline silicon substrate by means of a dc magnetron sputtering technique and then gold and aluminum metal contacts were applied on the top of a-Si:H and c-Si, respectively. The samples were annealed in the annealing temperature range 110–175°C with the negative end of the applied bias voltage kept at the gold side and the capacitance–voltage characteristics heterostructure was measured. DOS around midgap of the i-region was determined by drive-level capacitance technique and the effect of thermal annealing on the DOS was indicated.