scholarly journals Regional System Identification and Computer Based Switchable Control of a Nonlinear Hot Air Blower System

2012 ◽  
Author(s):  
Ijaz Hussain ◽  
Muhammad Riaz ◽  
Muhammad Rehan ◽  
Shakeel Ahmed
Keyword(s):  
System Identification ◽  
Hot Air ◽  
Regional System ◽  
Computer Based ◽  
Air Blower

scholarly journals Antioxidant effects of green tea extracts on lipid oxidation of half-dried eels

Food Research ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 62-66
Author(s):  
H.S. Song
Keyword(s):  
Lipid Oxidation ◽  
Green Tea ◽  
Early Stage ◽  
Frozen Storage ◽  
Secondary Oxidation ◽  
Hot Air ◽  
Peroxide Values ◽  
Plastic Bag ◽  
Air Blower ◽  
Antioxidant Effects

In order to explore the change of lipid oxidation of half-dried eels treated with green tea extracts and stored frozen, acid values, peroxide values, carbonyl values, and TBA values were measured. The eels were placed into the plastic bag and soaked for 1 hr in the solution mixed with distilled water and green tea extracts, and also vacuumed and stored frozen at –18 ∼ –20°C for 9 months after being dried with a hot-air blower for 15 hrs at 35°C (Aw 90-91). The control consisted of eels prepared in the same way without any pretreatment. At the end of the 1st month, 3rd month, 6th month, and 9th month, eel oil obtained from the samples were tested for its lipid oxidation. The activity of green tea extracts 1 mL was very similar to Vitamin C 500 μM 0.8 mL. The acid values, peroxide values, carbonyl values, and TBA values of eels treated with green tea extracts were lower than those of the control during 9 months of frozen storage (p<0.05). While the acid values and peroxide values of the control and eels treated with green tea extracts highly increased after the first month of frozen storage, the TBA values increased greatly on the third month of frozen storage. Compared to the control, the pre-application of green tea extracts to half-dried eels meaningfully prevented the generation of TBA compound during the frozen storage (p<0.01). In conclusion, pre-application of green tea extracts was effective in delaying early-stage peracid inducement and preventing the generation of secondary oxidation compounds, such as carbonyl compound and TBA compound, in the course of the drying and frozen storage

scholarly journals Characteristics of helicopter engine exhaust through scaled experiments using stereoscopic particle image velocimetry

2020 ◽  
pp. 095441002096647
Author(s):  
Zhen Wei Teo ◽  
Wai Hou Wong ◽  
Zhi Wen Lee ◽  
Tze How New ◽  
Bing Feng Ng
Keyword(s):  
Particle Image Velocimetry ◽  
Particle Image ◽  
Vortex Pair ◽  
Stereoscopic Particle Image Velocimetry ◽  
Engine Exhaust ◽  
Freestream Velocity ◽  
Hot Air ◽  
Image Velocimetry ◽  
Air Blower ◽  
Counter Rotating Vortex Pair

Helicopter engines are often mounted atop the fuselage to keep the aircraft footprint small and optimal for operations. As a result, hot gases produced by the engines may inadvertently impinge upon the tail boom or dissipate inefficiently that compromises on operation safety. In this study, a scaled fuselage model with a hot air blower was used to simulate hot exhaust gases. The velocity field immediately outside the exhaust port was measured through stereoscopic particle image velocimetry to capture the trajectory and flow behaviour of the gases. Two cases were considered: freestream to exhaust velocity ratios of 0 (no freestream velocity) and 0.46 (co-flowing free stream), respectively. The formation of a counter-rotating vortex pair was detected for both cases but were opposite in the rotational sense. For the case without freestream, the plume formed into a small “kidney” shape, before expanding and dissipating downstream. For the case with freestream, the plume formed into a slenderer and more elongated “reversed-C” shape as compared to the case without freestream. It also retained its shape further downstream and maintained its relative position. These observations on the trajectory and shape of plume provide basis to understanding the nature and interaction of the plume with its surroundings.

scholarly journals PERANCANGAN HOT AIR BLOWER PADA CONVEYOR 403-V UNTUK MENCEGAH PENGGUMPALAN IRON ORE PELLET (IOP) PADA DAYBIN 404-F

Bina Teknika ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 39
Author(s):  
Nur Cholis ◽  
Yosua Sebastian ◽  
Fariz Hilman Fauzan ◽  
M. Fathuraman Pringgatama
Keyword(s):  
Iron Ore ◽  
Hot Air ◽  
Iron Ore Pellet ◽  
Air Blower

scholarly journals Design consideration of smart solar dryer for precision drying

2021 ◽  
Vol 8 (2) ◽  
pp. 135-138
Author(s):  
TH BIDYALAKSHMI DEVI ◽  
YOGESH B KALNAR
Keyword(s):  
Dry Weight ◽  
Electrical Energy ◽  
Hot Air ◽  
Solar Dryer ◽  
Agricultural Produce ◽  
Solar Battery ◽  
Load Cells ◽  
Electrical Effect ◽  
Air Blower ◽  
Drying Chamber

A sensor based solar dryer was designed to control the drying environment for precision drying of agricultural produce. The system entirely used solar energy utilizing both thermal and electrical effect. Paraffin wax (PCM) was used for storage of thermal energy whereas solar battery was used to store the electrical energy. Hot air blower was also provided to supply heat when there is less or no solar radiation. Temperature sensors were provided to control the environment of drying chamber. The exhaust fan started operating depending on the set temperature and thus control the drying environment. Load cells were provided below each tray to measure the dry weight. The drying chamber was made of mild steel with glass wool insulation. The capacity of the designed dryer was 10-15 kg with 6 trays. The designed dryer has target temperature of 55-60oC.

Cell morphology, volume, and surface area determinations from multilevel contouring within HVEM micrographs of serial sections and whole-cell mounts

1987 ◽  
Vol 45 ◽  
pp. 588-589
Author(s):  
M. Marko ◽  
A. Leith ◽  
D. Parsons
Keyword(s):  
Surface Area ◽  
Electron Micrographs ◽  
Cell Morphology ◽  
Individual Variation ◽  
Serial Section ◽  
Stereo Pair ◽  
Complex Structures ◽  
Serial Sections ◽  
Surface Areas ◽  
Computer Based

The use of serial sections and computer-based 3-D reconstruction techniques affords an opportunity not only to visualize the shape and distribution of the structures being studied, but also to determine their volumes and surface areas. Up until now, this has been done using serial ultrathin sections.The serial-section approach differs from the stereo logical methods of Weibel in that it is based on the Information from a set of single, complete cells (or organelles) rather than on a random 2-dimensional sampling of a population of cells. Because of this, it can more easily provide absolute values of volume and surface area, especially for highly-complex structures. It also allows study of individual variation among the cells, and study of structures which occur only infrequently.We have developed a system for 3-D reconstruction of objects from stereo-pair electron micrographs of thick specimens.

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