S. R. Souza,1,2 M. B. Tsang,3 B. V. Carlson,4 R. Donangelo,1,5 W. G. Lynch,3 and A. W. Steiner3 1Instituto de Fı́sica, Universidade Federal do Rio de Janeiro Cidade Universitária, CP 68528, 21941-972, Rio de Janeiro, Brazil 2Instituto de Fı́sica, Universidade Federal do Rio Grande do Sul Av. Bento Gonçalves 9500, CP 15051, 91501-970, Porto Alegre, Brazil 3Joint Institute for Nuclear Astrophysics,...

Details are presented for the construction of a simple precision temperature-controlled chamber for investigating bacterial motile behavior. Independent of original incubation temperature, all species of motile bacteria observed showed a five- to sevenfold increase in average translational velocity (micrometers per second) as the environment temperature was incremented over the range from 10 to...

The Integrated Gate-Commutated Thyristor (IGCT) is an advanced semiconductor device for high frequency, high power applications. This work presents a detailed discussion of experimental dynamic characteristics of IGCTs at ambient temperatures ranging from –40°C to 50°C. A lumpedcharge physics-based IGCT model with full temperature response is also developed in this work. A chopper circuit with ...

Bacteriophytochromes (BphPs) are light-sensing regulatory proteins encoded in photosynthetic and non-photosynthetic bacteria. This protein class incorporate bilin as their chromophore, with majority of them bearing a light- regulated His kinase or His kinase related module in the C-terminal. We studied the His kinase actives in the temperature range of 5°C to 40°C on two BphPs, Agp1 from Agroba...

State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China Key Laboratory of Regional Climate-Environment for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of S...

Bitki ekosistemi içerisinde bitkilerin çimlenme, gelişme ve dağılımında etkili olan faktörler mevcuttur. Bu faktörlerin bitkinin istediği optimum koşullarda gerçekleşmesi durumunda, sağlıklı bir büyüme gerçekleşir. en önemlilerinden birisi de sıcaklıktır. kaynak ihtiyacını karşılamada yaşanacak aksaklık, bitkilerde olumsuz etkilere neden olmaktadır. Küresel iklim değişikliğine bağlı olarak arta...

Objectives/Goals I really enjoyed my project this year. In my project, I tested how temperature affected the pigmentation of four different bacteria. From my research, I knew that the bacterium Serratia marcescens alters its color at different temperatures, and I wanted to explore this. I also wanted to see if this applied to other pigmented bacteria. Methods/Materials My project consisted of q...

longitudinal heat conduction is an important parameter in the cryogenic field, especially in cryogenic heat exchangers. in the present work, the parasitic effect of tube wall longitudinal heat conduction on temperature measurement has been studied in cryogenic laminar hydrogen flow. the effects of various parameters such as wall cold end temperature, wall thermal conductivity, gas volumetric fl...

Functional Data Analysis (FDA) has recently made considerable progress because of easier access to the data that are essentially in the form of curves. Although functional modeling of Iranian precipitation based on temperature or humidity was done before, here we use functional analysis of variance and covariance to analyze the weather data collected randomly from Iranian weather stations in 20...