We present performance data for novel photon-counting detectors for free space optical communication. NASA GSFC is testing the performance of two types of novel photon-counting detectors 1) a 2x8 mercury cadmium telluride (HgCdTe) avalanche array made by DRS Inc., and a 2) a commercial 2880-element silicon avalanche photodiode (APD) array. We present and compare dark count, photon-detection eff...

The resistance of a new strain – Chlorella sp. R-06/2, isolated from a geothermal well (42 oC) in Rupite, to stress caused by temperature, light intensity and concentration of mineral elements in the nutritive medium was studied. The results obtained showed that Chlorella sp. R-06/2 was not sensitive to high light intensity and had a high photosynthetic productivity preserved over a broad tempe...

Introduction: Simultaneous MultiSlice (SMS) MR imaging (1) using MultiBand (MB) RF pulses is becoming increasingly popular in the neuroimaging community (2-4). Recently, there has been an interest in utilizing multielement RF arrays in combination with multichannel (pTx) MB pulse design to reduce transmit B1 (B1+) inhomogeneity and SAR (5,6) for SMS/MB imaging. Meanwhile, it has been shown that...

The adsorption ability of Dowex Optipore L493 resin modified with Aliquat 336 (MR), activated carbon modified with Aliquat 336 (MAC) and sawdust modified with Aliquat 336 (MS) for removal of Cr(VI) from aqueous solution in batch system was investigated. The effects of operational parameters such as adsorbent dosage, initial concentration of Cr(VI) ions, pH, temperature and contact time were stu...

Abstract Our study is focused on identification of the best medium for future experiments information processing with Belousov–Zhabotinsky reaction proceeding in Dowex beads immobilized catalyst inside. The optimum should be characterized by long and stable nonlinear behavior, mechanical stability allow control electric potential. We considered different types ion-exchange resins, bead distribu...

Çalışmanın amacı, güreşçilerde Geleneksel Setleme (GS) yöntemi ve Cluster (CS) ile oluşturulmuş Post Aktivasyon Potansiyeli (PAP) protokolünün dikey sıçrama anaerobik performans üzerine etkisini incelemektir. Araştırmaya branşında 5,00±0,86 yıllık spor geçmişine sahip toplam 17 gönüllü erkek güreşçi katılmıştır. Sporcular tesadüfi yöntemle GS CS grup olarak ikiye ayrılmıştır. Araştırma 24 saat ...

The administration of [14C]putrescine or [14C]spermidine (i.v., 100 muCi) to normal volunteers or patients with advanced cancer resulted in alpha-phase half-lives of 40 and 30 sec and beta-phase half-lives of 30 and 60 min, respectively. No significant differences were found between the plasma decay curves of normals and those of cancer patients. Urinary excretion was similar with both groups e...