Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userVentilation of operating rooms' parameters and its different flow types
بارامترات تهوية غرف العمليات و نماذج تدفقاتها المختلفة
2609
7 57
0
(
0
)
Authors
محمد الحناوي( باحث )
Created by
Shamra Editor
Ask ChatGPT about the research
نظراً إلى الأهمية البالغة التي يجب أن تولى بها غرف العمليات الجراحية من حيث التصميم (و على الأخص بارامترات نظام التهوية و التكييف) فقد أُجرِيت عدة دراسات و بحوث و وضعت الكودات العالمية بغية إعطاء البارامترات المثلى لمواجهة هذه المهمة. المئات من المشافي في سورية و كذلك حول العالم ما تزال تعاني من تجرثم الجراح في أثناء العمليات الجراحية. يقوم هذا البحث على إعادة تجميع و توثيق و بحث أفضل المعلومات التي تساعد الباحث و المصمم لإنجاز مهمتهم، و لاسيما أن هذه المعلومات غير متوافرة في مرجع واحد معاً. ناقش البحث المتطلبات المثالية لتكييف هواء غرف العمليات من حيث الحرارة، و الرطوبة النسبية، و الفلترة اللازمة، و عدد مرات تبديل الهواء اللازمة، و الضغوط الواجب المحافظة عليها، و السرعة الوجهية المنصوح بها. و كذلك أضاف دراسة بحثية مستفيضة للنظام الصفائحي و ميزاته عن الأنظمة التقليدية. ناهيك عن وضع أنظمة التعقيم المساندة باستخدام الأشعة فوق البنفسجية داخل الدكتات و في الغرف. توصل البحث أن هناك أفكاراً جديدة منها تزويد الهواء من الأرض و طرده على مستوٍ علوي، أو دفع الهواء من الجدار و طرده من فتحات على الجدار نفسه ربما تكون الحل للمعوقات جميعها.
Due to the high importance of designing operating rooms (especially the air conditioning parameters), many studies, researches and international codes were achieved in order to reach the optimum parameters for this mission. Hundreds of hospitals in Syria and all around the world are still suffering from wounds contamination during surgery. This paper is dedicated to re document collect the latest information to help researcher and designers achieving their mission, especially those information that are not available in one reference by itself. The research paper discusses the optimal air conditioning requirement like, temperature, humidity, required filtration, number of air changes per hour, pressures to be maintained and the recommended face velocity. An extended research studies focus on laminar flow system, and its advantages over the conventional ones. It mentions the sterilization supporting systems which use UVGI In-ducts and in rooms. The paper concluded that new ideas adopting different philosophies by either supplying fresh air from lower rooms areas or laminar flow wall should be further investigated.
References used
Rui, Z. Guangbei, T. Jihong, L. Study on biological contaminant control strategies under different ventilation models in hospital operating room. Building and Environment 43 (2008) 793–803
Macario, A. Vitez, T.S. Dunn, B. McDonald, T. Where are the costs in perioperative care? Analysis of hospital costs and charges for inpatient surgical care, Anesthesiology 83 (1995) 1138–1144
ISO 14644-1. Cleanrooms and associated controlled environments. Part 1. Classification of air cleanliness, International Organization for Standardization Technical Committee 209, 1999
rate research
Read More
This study discusses in-duct UVGI efficiency to disinfect O.R and ICU supplied air. Experiment
setup was designed using three ultraviolet lamps were placed at the upper side of experimental duct,
equipped with variable speed turbine to simulate flo
w rates of ICU and O.R. In order to determine
organism irradiance time, UV intensity distribution is measured at different levels in duct, Thenthese
parameters combined in simulation program executed under LABVIEW programming environment to
determine in-duct disinfection efficiency in relation to ICU and O.R designing requirement and sterility
level.
In this search, we will study variables types of quays
constructed in variables countries of world, the structural study will
done for one of these types according to Syrian Arab Republic
conditions with its local geodesic - geotechnical features,
permanent and temporary effected loads, also stability and fixity of
the studying type according to local conditions and cods.
This paper discusses improveming of the methods of computerized measurements by using some practical examples in the field of automation of flow, and pressure and level measurements and data
logging. Tnis work has been done on an experimental station, which has been developed specifically for this paipose. It is a multi purpose station for training on automation of measuring techniques in
industrial processes
204 samples were collected from various body samples
during the year 2016. These 204 samples distributed as
follows: 133 from urine , 37 swabs of wounds and burns,
10 swabs from the ear and pharynx, 12 from feces, 8
from CSF, 4 from blood. This s
tudy distinctly showed that
gram negative bacilli were the most isolates 136 (67%)
while 68 isolates (33%) were gram positive bacteria .
E. coli dominated (39.68%) of the total gram negative
bacilli.
This study distinctly showed an increase in the ratio of
E. coli resistance to one or more types of antibiotics , we
found that E. coli resistance to all antibiotics except
specific and expensive antibiotics, and we found that its
complete resistance to the second ,third and fourth
generation of cephalosporins , resistance to specific and
antibiotics such as Imipenem.
This study has been performed in Agriculture Research Directorated Labs, Ministry of
Science and Technology/Iraq, aimed to use different formulations of weaning food
contained different concentrations of black rice flour, brown rice, peas and oat c
hips. Some
physical treatments like cleaning, peeling and milling to rice and and germination, chard,
peeling, drying and milling to peas were used to make these four formulations, which were
chosed depended on chemical analysis (moisture, protein, ash, fiber, carbohydrate, fat and
energy) in addition the estimation of some minerals (Ca, Fe and Zn) comparing with
recommendation of FAO weaning food and functional properties; like bulk density (BD),
foam capacity (FC) and swelling power (SP). Sensory evaluation was also conducted.
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
