-The performance of catalysts in different forms was investigated for the design of a catalytic combustor with hydrogen fuel. The catalysts tested had dimensions of 150 x 150 mm, and consisted of a ceramic honeycomb impregnated with Pt, two Ni metal foams coated with Pd powder which differed from each other in pore size, and a ceramic foam coated with Co-Mn-Ag oxide powder. In the diffusive mod...

OBJECTIVE To assess the efficacy and safety of Insuflow (Georgia BioMedical, Inc.) filter heater hydrator device in reducing the incidence, severity and extent of hypothermia, length of recovery room stay and postoperative pain at the time of laparoscopy. DESIGN Prospective, randomized, blinded, controlled multi-center study. Patients underwent gynecologic procedures via laparoscopy; surgeons...

Micromachined thermal heater platforms offer low electrical power consumption and high modulation speed, i.e. properties which are advantageous for realizing nondispersive infrared (NDIR) gasand liquid monitoring systems. In this paper, we report on investigations on silicon-on-insulator (SOI) based infrared (IR) emitter devices heated by employing different kinds of metallic and semiconductor ...

BACKGROUND Little is known about the environmental and public health impact of unconventional natural gas extraction activities, including hydraulic fracturing, that occur near residential areas. OBJECTIVES Our aim was to assess the relationship between household proximity to natural gas wells and reported health symptoms. METHODS We conducted a hypothesis-generating health symptom survey o...

Pool boiling experiments were conducted in microgravity on five space shuttle flights, using a flat plate heater consisting of a semitransparent thin gold film deposited on a quartz substrate that also acted as a resistance thermometer. The test fluid was R-113, and the vapor bubble behavior at the heater surface was photographed from beneath as well as from the side. Each flight consisted of a...

Tactile sensing is required for assistant robots. A new stacked sensor head was proposed which detects forces and thermal sensations with a nerve-net LSI chip. To measure temperatures and heat flows, the sensor head required a thin and small heater to heat up the sensor head. The features of the polyimide heater are compact, low heat capacity, low power consumption and ease of attaching it to t...

In an induction heater for heating of aluminum billets, the main reason for using high-temperature superconducting (HTS) tapes instead of conventional copper conductors is to reduce the large power losses in the induction coil. In this work we present how to calculate the different loss contributions of an induction heater based on HTS tapes. Calculations of these losses are used in the design ...

A pilot model of the hypersonic rarefied wind-tunnel (HRWT) has been developed and its flow characteristics have been measured. The HRWT consists of a gas heater which produces an increase in working gas temperature, an expansion nozzle with a large expansion ratio, a vacuum chamber as the test section, and an evacuation system with high exhaust velocity to allow a continuous operation at low a...

Greenhouse gas (GHG) emissions have significantly increased in recent years as a result of population rise and the increase number residences, with high levels energy use homes household appliances. It is crucial to move housing industry away from high-carbon sources toward low-carbon order minimize greenhouse precaution. One most systems that needs be provided achieve efficiency electric water...

The heater temperature was calibrated using the measurement of the electrical resistance of the heater using the circuitry shown in Fig. S2 a. During the experiments a constant bias, Vtot is applied. The electrical resistance is measured from the voltage drop across the heater. The resulting current–voltage diagram is shown in Fig. S2 b. The electrical resistance changes as a function of the po...