This document defines and describes ventilation and different ventilation methods. It discusses natural ventilation driven by wind and temperature differences that can occur through windows and cracks. It also covers mechanical ventilation using fans to draw in outside air through ducts. The key types of mechanical ventilation systems discussed are exhaust, pressure, and balanced systems. Exhaust systems draw air out while pressure systems force air in, and balanced systems combine both approaches. The document emphasizes the importance of ventilation for maintaining air quality and removing contaminants, fumes, odors and excess carbon dioxide.
WHO expert group (1961) on public health aspects of housing prefers to use the term residential environment, which is defined as the physical structure including all necessary services, facilities, equipment and devices needed or desired for the physical and mental health and social well being of the family and individual
THIS PPT EXPLAINS TETANUS IN EASY WAY Important links- NOTES- https://mynursingstudents.blogspot.com/ youtube channel https://www.youtube.com/c/MYSTUDENTSU... CHANEL PLAYLIST- ANATOMY AND PHYSIOLOGY-https://www.youtube.com/playlist?list... COMMUNITY HEALTH NURSING- https://www.youtube.com/playlist?list... CHILD HEALTH NURSING- https://www.youtube.com/playlist?list... FIRST AID- https://www.youtube.com/playlist?list... HCM- https://www.youtube.com/playlist?list... FUNDAMENTALS OF NURSING- https://www.youtube.com/playlist?list... COMMUNICABLE DISEASES- https://www.youtube.com/playlist?list... ENVIRONMENTAL HEALTH- https://www.youtube.com/playlist?list... MSN- https://www.youtube.com/playlist?list... HINDI ONLY- https://www.youtube.com/playlist?list... ENGLISH ONLY- https://www.youtube.com/playlist?list... facebook profile- https://www.facebook.com/suresh.kr.lrhs/ FACEBOOK PAGE- https://www.facebook.com/My-Student-S... facebook group NURSING NOTES- https://www.facebook.com/groups/24139... FOR MAKING EASY NOTES YOU CAN ALSO VISIT MY BLOG – BLOGGER- https://mynursingstudents.blogspot.com/ Instagram- https://www.instagram.com/mystudentsu... Twitter- https://twitter.com/student_system?s=08 #TPR,#FEVER,#PRIMARY, #SECONDARY,#TERTIARY PREVENTION#Prevention_COMMUNICABLE_DISEASES,#breaking_CHAIN_OF_INFECTION,#PORTAL_OF_EXIT, #PORTAL_OF_ENTRY, #AGENT, #HOST, #CASE, #CARRIER, #NIDDCP,#NATIONALHELATHPROGRAM,S#MYSTUDENTSUPPORTSYSTEM, #rashes,#nursingclasses, #communityhealthnursing,#ANM, #GNM, #BSCNURING,#NURSINGSTUDENTS, #WHO,#NURSINGINSTITUTION,#COLLEGEOFNURSING,#nursingofficer,#COMMUNITYHEALTHOFFICER
WHO expert group (1961) on public health aspects of housing prefers to use the term residential environment, which is defined as the physical structure including all necessary services, facilities, equipment and devices needed or desired for the physical and mental health and social well being of the family and individual
THIS PPT EXPLAINS TETANUS IN EASY WAY Important links- NOTES- https://mynursingstudents.blogspot.com/ youtube channel https://www.youtube.com/c/MYSTUDENTSU... CHANEL PLAYLIST- ANATOMY AND PHYSIOLOGY-https://www.youtube.com/playlist?list... COMMUNITY HEALTH NURSING- https://www.youtube.com/playlist?list... CHILD HEALTH NURSING- https://www.youtube.com/playlist?list... FIRST AID- https://www.youtube.com/playlist?list... HCM- https://www.youtube.com/playlist?list... FUNDAMENTALS OF NURSING- https://www.youtube.com/playlist?list... COMMUNICABLE DISEASES- https://www.youtube.com/playlist?list... ENVIRONMENTAL HEALTH- https://www.youtube.com/playlist?list... MSN- https://www.youtube.com/playlist?list... HINDI ONLY- https://www.youtube.com/playlist?list... ENGLISH ONLY- https://www.youtube.com/playlist?list... facebook profile- https://www.facebook.com/suresh.kr.lrhs/ FACEBOOK PAGE- https://www.facebook.com/My-Student-S... facebook group NURSING NOTES- https://www.facebook.com/groups/24139... FOR MAKING EASY NOTES YOU CAN ALSO VISIT MY BLOG – BLOGGER- https://mynursingstudents.blogspot.com/ Instagram- https://www.instagram.com/mystudentsu... Twitter- https://twitter.com/student_system?s=08 #TPR,#FEVER,#PRIMARY, #SECONDARY,#TERTIARY PREVENTION#Prevention_COMMUNICABLE_DISEASES,#breaking_CHAIN_OF_INFECTION,#PORTAL_OF_EXIT, #PORTAL_OF_ENTRY, #AGENT, #HOST, #CASE, #CARRIER, #NIDDCP,#NATIONALHELATHPROGRAM,S#MYSTUDENTSUPPORTSYSTEM, #rashes,#nursingclasses, #communityhealthnursing,#ANM, #GNM, #BSCNURING,#NURSINGSTUDENTS, #WHO,#NURSINGINSTITUTION,#COLLEGEOFNURSING,#nursingofficer,#COMMUNITYHEALTHOFFICER
this presentation contains the information about housing, its types, standard of housing, criteria of housing, goals of housing, and effects of poor housing
A poor housing condition favors disease occurrence and reduce the productivity.
Most communicable diseases are found among people living in poor housing condition.
This topic explains the importance of ventilation in a building. Identification on types of ventilation and air conditioning system, methods of installation of air conditioning system and its components.
Types of urinals which are in available for the clients.
There may or may not be enough information according to the requirements of the viewer....I hope this would be useful for you
Thank you so much for reading.
Human waste (or human excreta) refers to the waste products of the human digestive system, menses, and human metabolism including urine and faeces. ... Faecal sludge management is used to deal with fecal matter collected in on-site sanitation systems such as pit latrines and septic tanks.
this presentation contains the information about housing, its types, standard of housing, criteria of housing, goals of housing, and effects of poor housing
A poor housing condition favors disease occurrence and reduce the productivity.
Most communicable diseases are found among people living in poor housing condition.
This topic explains the importance of ventilation in a building. Identification on types of ventilation and air conditioning system, methods of installation of air conditioning system and its components.
Types of urinals which are in available for the clients.
There may or may not be enough information according to the requirements of the viewer....I hope this would be useful for you
Thank you so much for reading.
Human waste (or human excreta) refers to the waste products of the human digestive system, menses, and human metabolism including urine and faeces. ... Faecal sludge management is used to deal with fecal matter collected in on-site sanitation systems such as pit latrines and septic tanks.
Dancing Rabbit Ecovillage. This introduction is a tour of the village through pictures of daily life. Solar panels, permaculture agriculture, timber frame homes, wind turbines, consensus decision making, strawbale construction, eating cooperatives, swimming in the pond...it's all there.
Natural ventilation is the process of supplying and removing air through an indoor space by natural means, meaning without the use of a fan or other mechanical system. It uses outdoor air flow caused by pressure differences between the building and its surrounding to provide ventilation and space cooling.
Integration of the natural cross ventilation in the CFD software UrbaWindStephane Meteodyn
Nowadays, a lot of energy is spent for air-conditioning in the cities for offices and private-housing. A good knowledge of the urban micro climate around the buildings could allow using the wind for natural air ventilation. UrbaWind is an automatic computational fluid dynamics (CFD) code developed in 2008 by Meteodyn to model the wind in urban environment. A module was recently added to assess the buildings air ventilation. First UrbaWind integrates climatology according to the geographic location of the site. Giving the influence of the shape and urban planning on the wind behaviors, UrbaWind solves the equations of fluid mechanics with a specific model which allows taking into account the urban environment effects such as vortexes, venturi or wise effects. Finally, the software is able to compute the wind flow inside each internal volume according to the openings of the buildings.This paper presents this software that has been designed for energy engineers to optimize the energy consumption inside a building. This is also an important tool for architects and project managers to make a building. The shape of the building as well as the orientation and the location of the openings can be designed with the awareness of the wind-induced natural air ventilation.
Fans Vs. Natural Ventilation: Cost Comparisonilachut
Compare the total costs of installing powered fans vs. a natural ventilation system. Discover how much you can save on product and installation costs by choosing a natural ventilator
Natural Ventilation & Lighting brochure »
Our Natural Ventilation & Lighting brochure is an introduction to the various systems we offer, detailing the health benefits, suitable applications, sectors, product information and technical specifications for each of the various systems and any complementary products available. It also includes a selection of case studies.
Mechanical ventilation such as an energy recovery ventilator (ERV) or a heat recovery ventilator (HRV) provides a solution to a number of issues presented by natural ventilation. Proper ventilation is a critical consideration for homes and buildings. Poor ventilation can cause a buildup in indoor air pollutants like dust, pollen, mold, and household chemicals and lead to a lower living standard and poorer health of the building’s occupants.
Example of natural air ventilation using CFD modellingStephane Meteodyn
Urbawind is a CFD software dedicated to quantify the natural air ventilation of buildings.
Such tool is useful to design green buildings where wind is used to improve the indoor thermal comfort with cross ventilation.
Objective is to determine project improvements from indoor thermal comfort and energy saving points of view.
For example, for a site study of natural air ventilation induced by wind in urban places, you can obtain:
– Mapping of wind speed and pressure
– Assess the natural air ventilation thanks to the computation of the air exchange rate
– Optimise the positions of openings according to the micro climatology
go to : http://meteodyn.com/en/logiciels/cfd-wind-pedestrian-comfort-safety-urbawind-software/#modules-tab
A lecture in the process of changing or replacing air in any space to provide high indoor air quality (i.e. to control temperature, replenish oxygen, or remove moisture, odors, smoke, heat, dust, airborne bacteria, and carbon dioxide).
Explore natural remedies for syphilis treatment in Singapore. Discover alternative therapies, herbal remedies, and lifestyle changes that may complement conventional treatments. Learn about holistic approaches to managing syphilis symptoms and supporting overall health.
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Oleg Kshivets
RESULTS: Overall life span (LS) was 2252.1±1742.5 days and cumulative 5-year survival (5YS) reached 73.2%, 10 years – 64.8%, 20 years – 42.5%. 513 LCP lived more than 5 years (LS=3124.6±1525.6 days), 148 LCP – more than 10 years (LS=5054.4±1504.1 days).199 LCP died because of LC (LS=562.7±374.5 days). 5YS of LCP after bi/lobectomies was significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001 by log-rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12, cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification time (P=0.000-0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early-invasive LC (rank=1), PT N0—N12 (rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9), monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
CONCLUSIONS: 5YS of LCP after radical procedures significantly depended on: 1) PT early-invasive cancer; 2) PT N0--N12; 3) cell ratio factors; 4) blood cell circuit; 5) biochemical factors; 6) hemostasis system; 7) AT; 8) LC characteristics; 9) LC cell dynamics; 10) surgery type: lobectomy/pneumonectomy; 11) anthropometric data. Optimal diagnosis and treatment strategies for LC are: 1) screening and early detection of LC; 2) availability of experienced thoracic surgeons because of complexity of radical procedures; 3) aggressive en block surgery and adequate lymph node dissection for completeness; 4) precise prediction; 5) adjuvant chemoimmunoradiotherapy for LCP with unfavorable prognosis.
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
Basavarajeeyam is an important text for ayurvedic physician belonging to andhra pradehs. It is a popular compendium in various parts of our country as well as in andhra pradesh. The content of the text was presented in sanskrit and telugu language (Bilingual). One of the most famous book in ayurvedic pharmaceutics and therapeutics. This book contains 25 chapters called as prakaranas. Many rasaoushadis were explained, pioneer of dhatu druti, nadi pareeksha, mutra pareeksha etc. Belongs to the period of 15-16 century. New diseases like upadamsha, phiranga rogas are explained.
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...kevinkariuki227
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
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2. INTRODUCTION:
We have learned how air becomes polluted, how
vitiated air affects the occupant and the reasons for
the symptoms produced in him. It has been shown
that air movement alone cannot maintain comfortable
conditions for long without the introduction of fresh
air; no will it remove the danger of spray – borne
infections (air – bone infection).
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3. In order to maintain comfortable
conditions in an occupied room it
is necessary to have adequate
ventilation. The simplest way of
doing this is to replace the warm,
humid air by cool, dry fresh air.
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4. 1. Is the process of replacing foul air by that
which is pure, in any enclosed place, as a
church, a mine etc.
2. The act of supplying fresh air and get rid of
foul air.
3. Ventilation is the movement of air in and out
of an enclosed space, including a body.
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5. 4.The circulation of fresh air
through open windows, doors, or
other openings, which are in
opposite sides of the room or
rooms being ventilated.
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6. 5.Ventilation is the process by
which ‘clean’ air (normally outdoor
air) is intentionally provided to a
space and stale air is removed.
This may be accomplished by
either natural or mechanical
means.
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7. 5.Ventilation is the intentional
movement of air from outside a
building to the inside.
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9. 1.Natural ventilation
Is ventilation that occurs primarily through open
windows and doors and by infiltration through
cracks in the building envelope, such as walls,
around windows and any penetration through the
walls. Natural ventilation is driven by wind or
pressure and/or temperature differences between
inside and outside a building
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10. One of the biggest advantages of
natural ventilation is that it does not
cost any money to run. Mechanical
ventilation and electronic climate
control can be quite costly, and may
contribute significantly to the overall
energy costs involved with running
a building. No use of energy also
makes natural ventilation an
environmentally friendly choice.
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11. Natural ventilation systems tend
to be easier to maintain, as well,
with no parts to break or go
wrong, they can't disturb
occupants of the building with
interruptions in ventilation or add
to the operating costs for the
ventilation system
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12. ◦Natural ventilation is generally
impractical for large buildings,
as they tend to be large, sealed
and climate controlled
specifically by HVAC systems.
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13. Three forms of natural ventilation are:
1. Through ventilation
2. Cross ventilation
3. Back to back ventilation
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14. 1. Through ventilation:
In this method the windows are
opposite to each other, so that a
current of air may pass straight
through the room.
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15. 2. Cross ventilation:
In this method the windows are so placed that a
current of air may pass diagonally across the
room.
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16. Cross ventilation is obtained by having windows in
both sides of the room, causing airflow across the
space. Positive pressure on the windward and/or
a vacuum on the lee side of the building causes
air movement across the room(s) from the
windward to the lee side, provided the windows on
both sides of the room are open.
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17. The windows on the windward side
of the building are opened less than
the windows on the lee side, in
order to obtain an optimal airflow
with as little draught as possible.
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18. 3. Back to back ventilation:
Neither through ventilation nor cross ventilation
takes place. It is considered to be unhygienic
type of ventilation, since the same air tends to be
repeatedly used without being replaced.
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20. 2.Mechanical Ventilation or forced ventilation
Outside air is delivered indoors typically with a
fans, which draws air from outside and forces it
through ducts to the place where occupants are
located. Mechanical ventilation can exacerbate
infiltration and/or exfiltration
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21. Three forms of artificial/mechanical ventilation
are:-
1. Exhaust (extractor/vacuum) system
2. Pressure (plenum/propulsion) system
3. Balanced system
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22. 1. Exhaust (extractor/vacuum) system:
Fans draw air out of the building in openings
high up in the outside walls. The air thus drawn
out is replaced by fresh air through windows
and other inlets.
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23. When it comes to air contaminants, local exhaust
ventilation is the capture of those nasties at their
source. Local exhaust ventilation is absolutely
required when the source have dust, exhaust fumes,
solvent vapors, lead fumes, and acid mist, all known
as toxic or corrosive contaminants.
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24. The fans may be placed directly in windows or
outside walls or in ducts which lead the air outside.
It is a system that is useful for the removal of dust,
smoke and fumes in some factories. But the
method has the disadvantage that the flesh-air to
replace the foul (vitiated) air must find its own way
into the building.
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25. 2. Pressure (plenum/propulsion) system:
Unlike the exhaust system, this forces the air into
a building and therefore control of entering air is
possible, the fresh entering air displaces the used
up air. The advantage of this method is that the
source of air-entry can be controlled and its purity
thereby ensured.
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26. The air can be filtered, warmed or
cooled as required; the method
breaks down if insufficient outlets
are provided for the foul
(vitiated) air or if these are closed
or blocked up.
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27. 3. Balanced system:
This is a combination of the exhaust and plenum
system.
Air is drawn in through ducts by means of a
centrifugal fan and extracted at suitable points by
exhaust fan. When this system of ventilation is
employed there should be no natural inlets or outlets.
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28. A balanced ventilation system
usually has two fans and two duct
systems. It facilitates good
distribution of fresh air by placing
supply and exhaust vents in
appropriate places.
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29. A typical balanced ventilation system is
designed to supply fresh air to
bedrooms and common rooms where
people spend the most time. It also
exhausts air from rooms where
moisture and pollutants are most often
generated, such as the kitchen,
bathrooms, and the laundry room.
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30. Balanced ventilation systems are
appropriate for all climates;
however, because they require two
duct and fan systems, they are
usually more expensive to install
and operate than supply or exhaust
systems.
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31. Air conditioning is generally employed with this
type of ventilation and the temperature and
humidity can be controlled. It is suitable for factories
where a control of humidity and temperature is
necessary to the processes being carried out; as for
example in cotton factories. It is also suitable for
cinema halls.
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32. reasons for ventilation:
To keep flammable gases and vapors below the
lower flammable limit (LFL).
To keep the air movement at a certain level so that
the hear stress can be reduced.
To keep toxic contaminants at or below certain
concentrations
To reduce odors
To dilute cigarette smoke
To control microorganisms, dusts and other
particulates
To limit carbon dioxide buildup.
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