Optimization Design of Layout and Display and Control Interface of the Shield Machine Main Control Room

The study was conducted to know whether bulk inflow of Non Emergency Calls (NECs) acts as an independent predictor for depression in call handlers of Rescue 1122, Punjab, Pakistan. Forty five (45) call handlers were recruited from evening shift of 9 districts. Similarly, same-sized control group was made out of field rescuers. The groups were compared for rate and severity level of depression using Beck’s Depression Inventory-II (BDI-II; Beck, Steer, & Brown, 1996). Probable predictors (except workplace stress) for depression in call handlers were evaluated through risk estimates. For workplace stress, a purposefully developed close- ended Workplace Stress Questionnaire including two subscales i.e. Non Emergency call and Control Room Environment of 30 items each was administrated. Twenty nine (64.4%) subjects of study group reported depression on BDI. Consequently, the same group had significantly higher mean depression score than control (18.2 vs. 12.6; p = .00). The scores also showed insignificant association with any of the probable predictors (demographic variables) of the call attendees. The respondents perceived more occupational stress against NECs. The findings attract the attention of authorities towards the severity of the concern.

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Design and Performance Characteristics of the Optical Readout and Control Interface for the BTeV Pixel Vertex Detector

10.2172/1421427 ◽

2000 ◽

Author(s):

M.C. Sergio Vergara Limon

Keyword(s):

Performance Characteristics ◽

Vertex Detector ◽

Optical Readout ◽

Control Interface ◽

And Performance ◽

And Control

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Research of Multi-Channel Hygrothermoscope Acquiring System

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.214.177 ◽

2012 ◽

Vol 214 ◽

pp. 177-182

Author(s):

Xiao Bing Wu

Keyword(s):

Air Conditioning ◽

High Reliability ◽

Temperature Data ◽

Simple Circuit ◽

Control Room ◽

Host Machine ◽

Humidity Transducer ◽

And Control ◽

Humidity Monitoring ◽

Conditioning Control

The paper introduces a multipoint remote Hygrothermoscope monitoring system based on the MAX485 bus. The system of remote multipoint temperature control is composed of the host machine and slave machine; the host system for display and control, the slave system is responsible for collecting temperature data. Between master machine and slave machine communicate through the RS-485 bus, can realize the distant control room of the scene monitoring. The STC89C54 MCU is used as the controller and DHT11 is used as the temperate and humidity transducer. The hardware and software of the system are outlined. The system has realized multiple measuring points, easy expansion, and high reliability, anti-interference. The whole system has the advantages of simple circuit, reliable, and can be used for measuring temperature, humidity, temperature of building air conditioning control temperature and humidity monitoring and other fields.

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Weak-Points Diagnosis and Optimization of Shield Machine Cutter Tool Based on Characteristic Parameters

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.693.1479 ◽

2016 ◽

Vol 693 ◽

pp. 1479-1485 ◽

Cited By ~ 1

Author(s):

Jian Zhao ◽

Xue Wu Hong ◽

Ming Yu ◽

Zhi Peng Gao ◽

Wen Jin Wang

Keyword(s):

Finite Element ◽

Dynamic Characteristics ◽

Optimization Design ◽

Weak Link ◽

Human Life ◽

Element Model ◽

Ring Structure ◽

Modal Parameters ◽

Underground Engineering ◽

Shield Machine

Shield machine plays an indispensable role in the mining, transportation, underground engineering, hydraulic engineering and municipal construction. Shield cutters of shield construction process often appears serious deformation, damage that leads to engineering accident, or even a threat to human life and safety. In order to provide high precise data for shield machine cutter tool dynamic modification and to diagnose the shield machine cutter tool fault, the dynamic characteristic of the shield machine cutter tool system, which is the main component of a shield machine cutter tool, has to be obtained precisely. The compute modal parameters identification method base on the finite element method is proposed to identify the modal parameters of the shield machine cutter tool. By means of Solidwords software, the knife ring structure of the shield machine tool and the tool is designed; then build the tool the finite element model, modal analysis, obtained the dynamic characteristics, and find out the weak link, put forward the improvement measures and prolong its life. Therefore, the study on dynamic characteristics of shield machine cutter, for the optimization design of domestic tool, has an important significance improve tool life.

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