Development of Firefighting Equipment for Efficient Firefighting Strategy (Development of New Nozzle)

2015 ◽  
Vol 10 (4) ◽  
pp. 620-626
Author(s):  
Takumi Sasaki ◽  
◽  
Yoshiaki Miyazato ◽  
Junji Inamoto ◽  
Takahiro Yamamoto ◽  
...  
Keyword(s):  
Fire Fighting ◽  
Compressed Air ◽  
Strategy Development ◽  
Foam Expansion ◽  
New Type

We have developed a new type of hose nozzle, which uses either water or compressed air foam (CAF), as a more efficient fire-fighting strategy. In this paper, a description of the measured spray range and foam expansion of both the prototype nozzle and conventional nozzles is given. The results show that the spray range of the prototype nozzle is equal or superior to that of conventional nozzles. The foam expansion capability of the prototype nozzle is far superior to that of existing nozzles. From these results, it was confirmed that the new type of hose nozzle suggested in this paper will be an effective addition to existing firefighting equipment, resulting in a more efficient firefighting strategy.

The Entrepreneurial University: Evidence of the Changing Role of Universities in Modern Russia

2014 ◽  
Vol 28 (4) ◽  
pp. 271-280 ◽  
Author(s):  
Dina Williams ◽  
Alexey Kluev
Keyword(s):  
Entrepreneurial University ◽  
Primary Data ◽  
Strategy Development ◽  
Infrastructure Development ◽  
Innovation Development ◽  
Policy Makers ◽  
Managerial Competencies ◽  
New Type ◽  
Changing Role

This paper examines the evolution of the entrepreneurial function of Russia's leading universities: the study is based on a conceptualization of a university's entrepreneurial development pathway developed by the OECD in 2009. The data on entrepreneurship development were collected in 2012 through a survey of technology transfer and innovation development managers of 18 National Research Universities. The primary data were complemented by desktop analysis of the strategy development documents of the universities surveyed. The results suggest that in the period studied, 2008–2012, a new type of university, the entrepreneurial university, has emerged in Russia. However, these entrepreneurial universities are facing serious challenges in the implementation of an entrepreneurial, innovation-oriented mission due to the lack of managerial competencies and inadequate infrastructure development. The paper has significant theoretical and practical implications in shedding light on the development of the entrepreneurial university in Russia, where the process is still in its infancy. The authors depict a trajectory of entrepreneurial transformation in and barriers to this process that, it is argued, university executives and policy makers should take into consideration.

scholarly journals A new leak-tight borehole casing at Dome Concordia station, Antarctica, for the SUBGLACIOR project

2014 ◽  
Vol 55 (68) ◽  
pp. 351-354 ◽  
Author(s):  
Romain Duphil ◽  
Philippe Possenti ◽  
Luc Piard
Keyword(s):  
Austral Summer ◽  
Summer Season ◽  
Compressed Air ◽  
New Method ◽  
Drilling Fluids ◽  
Polyethylene Pipes ◽  
New Type ◽  
New System

AbstractIn the frame of the SUBGLACIOR project, a new type of casing has been installed for testing during the 2013/14 austral summer season at Dome Concordia station, Antarctica. The SUBGLACIOR probe requires a full fluid column up to the surface, in order to circulate fluid for ice-chips recovery. This makes it essential that the casing is leak-tight through the porous firn column. We have evaluated existing solutions before opting to test a new method. This new system is made of polyethylene pipes which are welded together at the surface while the casing pipes are lowered into the reamed borehole. It is simple and lightweight and allows the casing to be installed quickly with optimum chance of being leak-tight. The installed casing has been tested both with compressed air and drilling fluids and has proven to work.

Lightweight remotely actuated switching valve for rebreathing exercise studies

1980 ◽  
Vol 48 (2) ◽  
pp. 386-388
Author(s):  
D. G. Ellis ◽  
R. M. Lampman
Keyword(s):  
Cardiac Output ◽  
Stress Testing ◽  
Compressed Air ◽  
Exercise Stress ◽  
Light Weight ◽  
Stress Tests ◽  
Switching Valve ◽  
Remote Operation ◽  
Graded Exercise ◽  
New Type

A new type of switching valve used in rebreathing studies for estimating cardiac output is described. This valve employs a unique deformable elastic element, actuated by low-pressure compressed air, to effect switching. The capability for remote operation (via a compressed air line) and the light weight of the valve (110 g) make the valve especially well suited to exercise stress testing studies. Two valves of this type have been satisfactorily used in graded exercise stress tests in a clinical setting for over 2 yr.

Influence of Microshot Peening on Surface Layer Characteristics of Cold Tool Steel

2007 ◽  
Vol 561-565 ◽  
pp. 897-900 ◽  
Author(s):  
Yasunori Harada ◽  
Kenzo Fukaura ◽  
Toshinori Aoki ◽  
Daien Yokoi ◽  
Yasushi Haruna
Keyword(s):  
Residual Stress ◽  
Surface Roughness ◽  
Surface Layer ◽  
Fatigue Strength ◽  
Tool Steel ◽  
Compressive Residual Stress ◽  
Heating Furnace ◽  
Cemented Carbide ◽  
Compressed Air ◽  
New Type

Shot peening is a surface treatment and improves the performance of engineering components. More recently, a new type of microshot has been developed to enhance peening effect. In the present study, the influence of microshot peening on the surface layer characteristics of cold tool steel was investigated. In the experiment, the microshot peening apparatus with a heating furnace was produced experimentally. The projective method of the microshot was a compressed air type. The peening microshots of 0.1mm diameter were cemented carbide and the workpiece was commercially cold tool steel SKD11. Surface roughness, compressive residual stress, and hardness in the peened workpiece were measured. The effect of microshot peening on the fatigue strength of cold tool steel was also examined. The use of hard microshot such as cemented carbide was found to cause a significantly enhanced peening effect for cold tool steel.

scholarly journals The Development of a Stair-climbing Robot with Wavy Movement by Rotating Crosses

2002 ◽  
Vol 14 (3) ◽  
pp. 298-303
Author(s):  
Ato Kitagawa ◽  
◽  
Liang Zhang ◽  
Takashi Eguchi ◽  
Hideyuki Tsukagushi ◽  
...  
Keyword(s):  
Simple Structure ◽  
Control Method ◽  
Design Method ◽  
Fire Fighting ◽  
Stair Climbing ◽  
Experimental Result ◽  
Climbing Robot ◽  
New Type ◽  
Fire Fighting Robot

A new type of movement called wavy movement, which is realized by rotating crosses, is proposed to build a stair-climbing fire-fighting robot. The prototype robot consists of 12 crosses, which are driven by 2 motors via sprockets and chains. In this paper, the principle of wavy movement, the mechanism, the design method, and the experimental result of the developed robot are discussed. It is confirmed through experiment that a robot with wavy movement is able to climb stairs with simple structure and easy control method.

Characteristics and Analysis of a New Type of Hybrid Compression Energy Storage System

2014 ◽  
Vol 668-669 ◽  
pp. 677-682
Author(s):  
Li Wei Zhang ◽  
Xing Xing Zi ◽  
Xian Jin Huang
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Theoretical Analysis ◽  
Storage System ◽  
Energy Storage System ◽  
Compressed Air ◽  
Characteristic Parameters ◽  
Cyclic Compression ◽  
New Type ◽  
Working Principle

Based on the background of compressed air energy storage system (CAES), this paper analyzes hybrid compression energy storage system (HCES) firstly. Design a new type of energy storage system - cyclic compression energy storage system (CCES). Secondly, study its working principle and characteristic parameters, such as compression-release efficiency, energy density and so on. Finally, by simulation and parameter calculation, prove the correctness of the theoretical analysis.

Modeling and Simulation of a Hydro-Pneumatic Accumulator System for Hybrid Air Development

2015 ◽  
Vol 733 ◽  
pp. 763-767
Author(s):  
Hao Li ◽  
Yuan Hao Zhu ◽  
Yu Hua Xin
Keyword(s):  
Modeling And Simulation ◽  
Compressed Air ◽  
Domain Modeling ◽  
Storage Unit ◽  
Hybrid Powertrain ◽  
Energy Storage Unit ◽  
Output Performance ◽  
Hybrid Solutions ◽  
New Type ◽  
Simulation Results

To meet the increasingly stringent environmental protection regulations, there had emerged several technologies in the electrification of powertrains in hybrid vehicle, such as HEV and EV. However, these also led to increasing costs which could greatly affect the markets. So, here introduce a new type of full-hybrid powertrain that combines a petrol engine and a compressed air energy storage unit instead of a battery, offering an alternative to electric hybrid solutions. This paper laid the emphasis on the multi-domain modeling and simulation of a hydro-pneumatic accumulator system, and then continues to study its dynamic behavior of the compressed air and output performance of the pump/motor with simulation. Results show that the system possesses a high applied value in a given hybrid air system.

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