Study on Mechanical Automation with Noise Characteristic and Control of Blower Room

2013 ◽  
Vol 738 ◽  
pp. 191-194
Author(s):  
Huan Liu ◽  
Han Cui
Keyword(s):  
Noise Source ◽  
National Standards ◽  
Noise Characteristic ◽  
Source Analysis ◽  
Pharmaceutical Factory ◽  
Vibration Isolators ◽  
Flexible Metal ◽  
And Control ◽  
Electric Engine ◽  
Normal Performance

The noise of blower room severity exceeds national standards,which affects normal performance of the new pharmaceutical factory,so it is necessary us to control noise. Based on the measured dates of blowers room, it carries out a noise source analysis and a discus of its noise characteristic in this article, then a controlling approach has found from absorbing noise, excluding noise to blockade sound transmission. When the controlling approach could not meet expect, a supplement program will be designed that vibration isolators will be installed under the basement of electric engine and blower, flexible metal tubes will be installed to isolate vibration spread path. After a set utility controlling approach is implemented, the consequence shows that program not only gains good effects but also caters to more advanced criterion of manufacturers demand.

Noise source analysis and control of two axial-flow cooling fans in series

2016 ◽  
Vol 64 (5) ◽  
pp. 677-687 ◽  
Author(s):  
Chen Wang ◽  
Weihao Zhang ◽  
Lixi Huang
Keyword(s):  
Noise Source ◽  
Axial Flow ◽  
Source Analysis ◽  
Cooling Fans ◽  
In Series ◽  
And Control

SAMURAI - jet noise source analysis of a V2500 engine

2016 ◽  
Author(s):  
Henri A. Siller ◽  
Alessandro Bassetti ◽  
Stefan Funke
Keyword(s):  
Noise Source ◽  
Jet Noise ◽  
Source Analysis

scholarly journals Estimation of production consistency of diphtheria, tetanus, and pertussis components of the DTP vaccine using Shewhart charts

2021 ◽  
Vol 21 (4) ◽  
pp. 256-265
Author(s):  
I. A. Alekseeva ◽  
O. V. Perelygina ◽  
E. D. Kolyshkina
Keyword(s):  
Control Charts ◽  
Large Population ◽  
National Standards ◽  
Statistical Control ◽  
Technological Processes ◽  
Shewhart Control ◽  
Dtp Vaccine ◽  
The Stability ◽  
And Control ◽  
Shewhart Charts

The Russian Federation puts special emphasis on vaccination-related issues, in accordance with the WHO recommendations. The fact that vaccination, in particular with the diphtheria, tetanus, and pertussis vaccine (DTP vaccine), covers large population groups, accounts for the relevance of research aimed at improving the quality of vaccines. One of the ways to produce vaccines of assured quality is to maintain consistent manufacturing processes that ensure consistency of product characteristics. The stability of the technological processes may be assessed using Shewhart charts. The aim of the study was to assess the production consistency of diphtheria, tetanus, and pertussis components of DTP vaccine using Shewhart control charts. Materials and methods: the study used data from 60 batch summary protocols of a Russian-produced DTP vaccine that were submitted to the Testing Centre of the Scientific Centre for Expert Evaluation of Medicinal Products from September 2017 until April 2020. The study assessed one of the main vaccine quality characteristics—specific (protective) activity of diphtheria, tetanus, and pertussis components. Shewhart charts for the diphtheria and tetanus components were constructed based on the manufacturer’s summary protocols, while Shewhart charts for the pertussis component were constructed based on both summary protocols and the results obtained by the Testing Centre during certification of the product batches. The Shewhart charts were used in accordance with the national standards GOST R 50779.42-99 and GOST R ISO 7870-2-2015. Results: a retrospective analysis of R- and X-charts covering a 2.5-year period revealed some characteristic trends in special-cause criteria. The most alarming situation was observed for the production of the diphtheria component. The technological processes were somewhat safer in the case of the tetanus and pertussis components. The production process lacked due statistical control, which is confirmed by the lack of correlation between the results of the pertussis component activity assessment obtained by the manufacturer and the Testing Centre. Conclusions: during the analysed period, the production of the diphtheria, tetanus, and pertussis components of the DTP vaccine was not always consistent. This highlights the need to conduct research aimed at standardisation of both production processes and control test conditions.

scholarly journals Effect of Educational Workshops on Disaster Risk Perception in Nurses

2020 ◽  
pp. 270-278
Keyword(s):  
Risk Perception ◽  
Repeated Measures ◽  
Intervention Group ◽  
Round Table ◽  
Disaster Risk ◽  
National Standards ◽  
Control Group ◽  
Repeated Measures Analysis ◽  
Post Hoc ◽  
And Control

INTRODUCTION: The enhancement of nurses’ risk perception plays a significant role in their preparedness during disasters and emergencies. Therefore, this study aimed to investigate the effect of educational workshops on disaster risk perception in nurses METHODS: This randomized controlled field trial study included 62 nurses working at Razi Hospital, Birjand, Iran. The participants were divided into intervention and control groups. The intervention group was then requested to participate in a one-day intensive educational workshop based on the current national standards. The workshop content included a combination of lecturing methods, round-table exercises, and film display. The data were collected using the demographic characteristic form and researcher-made questionnaires measuring the nurses’ risk perception during disasters and emergencies. Subsequently, the data were analyzed using independent t-test, repeated measures analysis, and Bonferroni post hoc tests. FINDINGS: The mean total score of risk perception were significantly higher in the intervention group before, immediately, and two months after the workshop session, compared to those in the control group (P˂0.001). CONCLUSION: The implementation of nurses’ national preparation program during disasters and emergencies can result in an increase in the nurses’ risk perception during these events. Therefore, regarding the importance of nurses’ preparedness in confrontation with disasters and emergencies, it seems necessary to integrate the National Preparedness Program into the educational programs immediately after recruitment and in the form of in-service courses.

scholarly journals Noise Source Analysis in Counter-Rotating Open Rotors

AIAA Journal ◽  
2021 ◽  
pp. 1-14
Author(s):  
Dale A. Smith ◽  
Antonio Filippone ◽  
George N. Barakos
Keyword(s):  
Noise Source ◽  
Source Analysis

scholarly journals NURSES’ COMPLIANCE WITH INFECTION CONTROL MEASURES AND BARRIERS TO PRECAUTIONS IN THE DELIVERY ROOM

2018 ◽  
Vol 10 (1) ◽  
pp. 101-110
Author(s):  
Inaam Abdelati ◽  
Maha Ali ◽  
Yousif A ◽  
Amany El-berdan
Keyword(s):  
Infection Control ◽  
Emergency Situation ◽  
National Standards ◽  
Control Measures ◽  
Delivery Room ◽  
Standard Precautions ◽  
Infection Control Measures ◽  
Collection Data ◽  
Training Courses ◽  
And Control

Background: Nurses play crucial role in avoiding hospital procured infections, by guaranteeing that all viewpoints of their nursing practice is prove based, and also through nursing inquire research and understanding instruction. Aim: The study aimed to evaluate the nurse's compliance with infection control measures and-barrier precautions in delivery room. Methods: Research design: An exploratory design had been chosen for carrying out our paper. Setting: The study was carried out in four hospitals in Damietta governorate. Subjects: 51 on duty nurses were taken at the time of the study. Tools of data collection: Data were collected using self-administers questioners. Results: Findings revealed the existence of poor standard precautions (100%). There is connection between age, education level, work involvement experience, and compliance with standard safety measures and precautions at p<0.05. At the same time significant relation between training courses and compliance to standard precautions was p<0.05. Conclusion: The nurses in the current study faced a lot of barriers that posed a hindrance in implementing the infection control measures, such as in situations like: emergency situation, lack of equipment & supplies, lack of infection control measures, lack of periodical infection and control training course. Recommendations: Strategic plan to overcome obstacles & barriers that hinder nurses to compliance with infection control measures should be conducted. It is essential to consider the national standards of infection prevention adopted by the ministry of health in delivery room of all hospital in Damietta governorate.

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