Atomic Theory essays

Atomic Theory essays In ancient Greek the word atom meant the smallest indivisible particle that could be conceived. The atom was thought of as indestructible; in fact, the Greek word for atom means "not divisible." Knowledge about the size and make up of the atom grew very slowly as scientific theory progressed. What we know/theorize about the atom now began with a core theory devised by Democrotus, a Greek philosopher who proposed that matter consisted of various types of tiny discrete particles and that the properties of matter were determined by the properties of these particles. This core theory was then modified and altered over years by Dalton, Thompson, Rutherford, Bhor, and Chadwick. The atoms original structure was simple, but as more and more research was done the atom became more complex and puzzling The five atomic theories of the past two centuries represent the sudden advancement of science in modern times. Beginning with a basic theory on the behavior of atoms to the current model, some changes have been made, and some ideas are still the same. Ancient Greek philosophers believed that everything was made up of invisible particles called atoms. Since then the theory of atoms did not progress until 1803. John Dalton was the first scientist to compose a theory of matter based on atoms. Dalton's atomic theory is based on four concepts. He stated: "1. All elements are composed of atoms, which are indivisible and 2. All atoms of the same element are exactly alike; in particular, they 3. Atoms of different elements are different; in particular, they have 4. Compounds are formed by the joining of atoms of two or more All of Dalton's ideas account for the laws of definite and multiple proportions and the law of conservation of mass. Some of Dalton's points are still thought to be true, but over time this original theory has been modified. The first of these modifications came in 1897 when J.J. Thomson discovered ...

We are all heroes essays

We are all heroes essays Nowadays the concept of hero is in no argument weather that they should be alive or not, young or old, poor or rich. There are many institutions that recognized individuals and are branded as heroes. But becoming a hero is not only for the chosen one, not for those who only passed the standards set by human. We are all heroes in our own endeavor no matter how little the good we do. Let us first identify the hero in our society. For I believe that amidst the stress we are experiencing, still there are heroes. Philippines is now confronted with immense economic problem. Philippine oil distributors monopolized and engulf our economy with their sustained price hikes. Thus putting a domino effect in our societies basic commodities. Fiscal crises also worsen our economic situation. Now even a single peso could not buy you cigarette. Where and who are the heroes? The rich who can donate in Donasyon ng bayan by House speaker Jose De Venecia? Perhaps yes! As long as their intentions are sincere to help build the economy. The amounts are just material things that we always look upon. The deed is much to be value and be off by intrigues. Inspite of the economic difficulties, looking on the other side of the coin we could find another hero, the masa. I am one of them and becoming a hero is being able to endure and sacrifice for family. Masa are heroes for we continuously assert and take initiative for the improvement of ones life. Though efforts are little, as other would see, still a heroic deed. We are all heroes in our own endeavor it need not to be broadcast nor given a medal just to become one. Philippine is nevertheless trying to become more competitive when it comes to education. Every now and then the curriculum are being evaluated and changes are administered. On the other hand, more children and youths are seemly out of school inspite of the governments effort in educating them. Som...

Trends - Social Networking sites Essay Example | Topics and Well Written Essays - 1250 words

Trends - Social Networking sites - Essay Example It has quickly become a major source of information with many people relying on it to get news from all over the world, for research, to do market research and make purchases and to keep in touch with one another over great distances. One of the most influential consequences of the internet is social networking, which has become big business for those who run social networking companies since they not only charge people to pay to advertise on their websites, but many have also developed the tendency of selling the personal information of their users to other commercial companies. Social networking has come to set many trends in the world today, since it has changed the way people interact with one another as well as created a medium for people from different parts of the world to communicate. Approximately 10 percent of workers world over telecommute and this figure is exponentially high in developed countries. The most influential trends brought about by social networking sites incl ude the virtual world becoming almost as real as the physical one, phenomenal growth of information over the internet, creation of mobile devices and finally, an increased transparency into the private lives of individuals, since many share their private matters over the social networks. The psychological impacts of social networking especially on the youths have been phenomenal over the last decade; â€Å"15-24 still represent the most highly-engaged segment of social networkers† thus they make the bulk of internet users (Sighn). To many of them, the internet has become such an important role that they have become obsessed with it and they cannot function without it. Today, millions have become addicted to social networking and they literary live and sleep online for some people being disconnected makes them feel unsettle and anxious, not unlike deprived drug addicts. Nevertheless the internet has also radically changed and improved communication; social networking can be ap plauded for the developments which they have made in interpersonal communication. Interaction among people in different parts of the world has become easier and more convenient, because there is no longer any need to have physical contact for communication to take place. Instead, they have made communication virtual, with more people subscribing to the use of social network sites to communicate every day. Social networks have effectively ensured that the need for human beings to socialize has been satisfied, as well as enabled those individuals who use them to be able to communicate with large numbers of people at the same time (Singh). Thus, social networking sites have not only managed to fulfill the need for individuals to communicate with one another, but they have also created a situation where physical interaction is no longer necessary for communication. In addition, social networks have made the virtual world, to be almost as real of the physical one; in fact, for some peopl e, the virtual presence is more real than the physical one since most of their interactions with others are done over social networks (Brown 31). These networks have become the best platforms on which individuals can use to effectively communicate with each other, and this explains the reason as to why quite a large number of people prefer spending their time in these sites. It is equivocal

Plantation Economy Essay Example | Topics and Well Written Essays - 2000 words

Plantation Economy - Essay Example (West and Augelli, 1999) The history of Central America is linked with the growth and development of the plantation economy. When the colonialists reached the land, they found enabling climate and they set of establishing plantations to create what came to be known as the sugar kingdom in the history of America. The economy of the region is large reliant on Agriculture. There is production of cash crop like coffee, bananas, sugarcane and cotton which is produced through large holding and most of the products is exported to the Northern American and to Europe. However there is also the growth of subsistence crops like corns, beans, bananas, mains, rice and pulley. In the drier regions there is the production of beef cattle. The large holdings most employee modern farming while the subsistence farmers still use the simple farming techniques that have been in use for along time now. (Wrigley, 1999) Plantation farming has been practiced in the region since the settlement of colonialists in the region. However the region still lags behind in economic development despite producing agricultural products to the world. Has the plantation economy helped the region develop economically or has it helped the investors in the large holdings' This paper represents a well arranged and researched inquisitive essay on the impact of large holding farming in the region. The first part will look at the historical development of the large scale farming over the time and how it has developed in the region. Then it will look at the impact this has been making on the economy of the region and at the end it will look at the present economic situation of these countries so as to make a conclusion of there the plantation economy has been of use to the region of if it has not helped the region. In the conclusion it will look the problem that the region has been facing and what can be done on the situation. Development of plantation economy in the region The historical development of plantation economy in the region dates back when the Spanish colonization was started. With the arrival of Spanish and other colonialist in the region, there was increased development of agrarian economy which was favored by the Amazon climate that extends to the region. When the Spanish came, they immediately stated planting bananas in large plantation around 1860s and by 1870 there was increased growth of banana in the region. Most of the plantations in the region were started along the railway lines which were by then expanding northward to America. When an American entrepreneur was commissioned by the Costa Rica government to build a transition railroad, he started growing bananas along the railway road and immediately began exporting them to United States. Keith was highly successful in the venture and he embarked on the same plantation economic along all other major railway roads that he built. He was able to acquire large tracks of undeveloped la nd and in the process expanded the development of banana plantation to Guatemala and Hondura. In 1869 he merged with Boston Fruit Company and formed the United Fruit Company which rapidly expanded to Central America and by 1955 the company had over 400,000 hectares under production of bananas. (Ferguson, 1998; Mahar and Schneider, 1994) As the colonialists settled there was

Fluency Assignment Example | Topics and Well Written Essays - 750 words

Fluency - Assignment Example Visually impaired students will also be located in the front seats to ensure they can see the instructions being given. During the pre and post tests, visually impaired students will be given a written out test to ensure they are completing the test correctly using the correct words. A computer with CD-ROM software and internet connection will help students watch the book review online and related stories. Also, will help them research information on character education on the internet. Distribute The happy lion story book to each student. The teacher will instruct the student to pick from the various story books a book of choice and sit in their respective groups. The students will be instructed to analyze the book cover and state at least two characters identified. The students will also write down the analyzed character traits. The teacher will also pass a pre-test to assess their skills and knowledge on understanding and their fluency in treading the story. The teacher will then assess the student on the one-on-one basis for their ability to read fluency and speed in reading and character identification. The teacher will correct the mistakes in students reading and help them answer the pre-test correctly. Explain to the students: today we are going to read a short story the happy lion from a highly interesting story book by highly influential author. Assess the number, of students who have ever read the story. (Wait for the response to determine students’ interest in reading the story). It seems that many of you have never read the story. Well, I will help you go through the story and understand what the author says about fluency. Are you interested to read the story and assist me understand what the author is saying about character development? First, let look for the meaning of the word ‘fluency’. Fluency is the capacity of a person to read with speed, accuracy and right expression. Similarly, to be

Fire Safety Management Procedures Of Storage Warehouse Construction Essay

Fire Safety Management Procedures Of Storage Warehouse Construction Essay The individual report is a team members study into one specialist area of the project which is assigned by the team. It should be essential materials to support the final conclusions and recommendation for this project in the team report. The clients requirements details as follows. Building size: 250 sq meters (office) Building size: 3,500 sq meters (warehouse) Building height: 14 meters Twenty glass windows for the offices on the front One door on the front Ten windows for each side Five gates and three windows on the rear Brick front Sainsbury (client) plans to build up a warehouse along with offices of two storeyes. The building will be constructed of pre-engineered steel structure. For example, Fig 1 shows a typical structure of the pre-engineered steel building. Fig 2 displays the inside of the building under construction Figure Figure Background Since the 1960s there has been a rapid increase in the construction of large single storey storage warehouse facilities in the United Kingdom (UK). One of the most notable of these was the 40,000 m2 unsprinklered military storage facility constructed by the Ministry of Defence (MOD) at Donnington. In 1983 this storage facility was completely destroyed by fire despite the presence of an on-site fire service. The fire at Donnington and other unsprinklered warehouses circa 1980 raised concerns in the UK and United States (US). The major concern in unsprinklered warehouses is rapid conflagration, especially if the following features are present: †¢ 12-30m internal building heights †¢ High racked storage †¢ Highly combustible and flammable stored commodities †¢ Combustible wall and ceiling linings, †¢ Poor fire safety management Regardless of the above concerns, recent research undertaken by the Building Research Establishment (BRE) into sprinkler installation trends and fire statistics for warehouse buildings has shown that occupants generally make their escape from fires in unsprinklered warehouses un-hurt. The likely reasons for this are: 1. The large internal volume can act as a reservoir for combustible products and hence will increase the available safe escape time (ASET) 2. An occupants awake and familiarity state within the building reduces the required safe escape time (RSET) on this basis, BREs research stated that it could be difficult to justify the provision of sprinklers solely on safety grounds, indicating that the provision of sprinklers would have a negligible impact for life safety purposes. Since the 1980s there have been several full scale sprinklered fire tests on warehouse commodities (stored to various heights). These tests have been performed by BRE, Underwriters Laboratory (UL), Factory Mutual (FMGlobal) and the National Institute for Standards and Technology (NIST). Such research has assisted in the development of BS5306-2, BS EN12845:2004 and bespoke fire safety engineering guidance such as The Design of Smoke Ventilation for Single Storey Industrial Buildings, including those with mezzanine floors, and high racked storage warehouses by the Smoke Ventilation Association (SVA). Where property protection sprinkler systems are installed with additional enhanced features, significant improvements upon the typical 80% reliability can be achieved. Enhancements such as locking valves in the open position to prevent manual shut-off, fast response sprinkler heads and secondary pumps can all ensure that an enhanced property protection sprinkler system offers an operationa l reliability of in excess of 90%, which is the equivalent reliability for a system designed to a life safety standard. Description The purpose of this Outline Fire Strategy Report is to facilitate preliminary discussions with the Approving Authorities and to outline the approach that will be taken to demonstrate compliance with Part B (Fire Safety) of Schedule 1 to the Building Regulations (2000-2006). This report will provide a brief summary on the all aspects of fire safety which correlate with the corresponding Building Regulations. However it will focus primarily issues pertaining to the Fire Detection and Alarm system and linking factors, such as evacuation times and fire growth. The overarching areas within the project incorporate: Determine metal building frames and column profiles; Choose the materials for the walls and roof; Lay the floors plan out; Fire sprinkler system and fire-fighting water pipe; Fire detection and alarm system; Smoke control system; Architectural design for egress means; Structural fire resistance calculations; Although the provisions for the fire safety aspects noted above are covered under separate regulations, they are interlinked. Therefore, these fire safety aspects will be reviewed holistically in this strategy in order to ensure the requirements of the Building Regulations are achieved in the proposed works. The facility will incorporate approximately 3,500 sq m of warehousing space and a two storey office block. The facility will be typical portal fame construction clad in composite panels with the portal haunch being at approximately 16m above adjacent ground level and the apex of portals being at approximately 18m above adjacent ground level. The two storey office block is compartmented from the remainder of the building in fire resisting construction effectively creating two separated parts. The warehouse compartment is single storey. Automated Garment Racking System The automated garment racking system will be spread over five levels (i.e. ground and four upper access gantries/walkway levels). A common feature of automated hanging garment storage systems is that there are no discernible floors. Access to the automated garment racking system will be via elevated walkways and open stairs. A typical arrangement is shown in figure 3 Figure The existing facility is fitted out with high racking bays incorporating in-rack sprinklers. It is intended to alter the existing high racking bay arrangement to incorporate a more efficient system to meet with specific operational requirements. The existing sprinkler system will be amended/extended to ensure that all high rack storage bays are adequately protected with in-rack sprinklers. Building Regulations Regarding fire safety, the proposed automated hanging garment racking system and associated works must comply with The Building Regulations 2000 (England and Wales) but in existing areas only to the extent where no new or greater contravention of any regulation is created. As a general principle the recommendations of Approved Document B (ADB) Volume 2 Buildings Other Than Dwelling Houses can to be applied to most buildings. Although, in respect of certain buildings and structures, in particular those purpose-designed for automated storage plant, the recommendations set out in ADB might be either inappropriate or unreasonably restrictive. A common feature of automated hanging garment storage systems is that there are no discernible floors and no fire separation provided between deck levels. Automated hanging garment delivery, picking or transportation systems are generally accessed via elevated walkways, stairs and ramps. The Building Regulations are written in a functional manner and rather than follow the prescriptive guidance of a particular code of practice, a fire engineered approach can be taken to demonstrate compliance with Statutory requirements where deemed appropriate. In this regard ADB states the following: Fire safety engineering can provide an alternative approach to fire safety. It may be the only practical way to achieve a satisfactory standard of fire safety in some large and complex buildings and in buildings containing different uses ADB: Fire Safety Engineering (0.3) Therefore, where the proposed development does not fully comply with the recommendations of ADB m it is intended to incorporate the latest guidance available as part of an alternative fire safety engineering approach. This approach will be based on the recommendations of BS7974 with the overarching aim of achieving the optimum design solution and Building Regulations approvals. THE REGULATORY REFORM (FIRE SAFETY) ORDER 2005 When the premises become a workplace, the responsible person, i.e. employer, must ensure that any duty imposed by The Regulatory Reform (Fire Safety) Order 2005, England Wales, specifically articles 8 to 22 or by regulations made under article 24 is complied with. Generally, compliance can be achieved with robust maintenance, staff training and housekeeping regimes and by undertaking regular fire risk assessments (FRA). The local Fire and Rescue Service will be responsible for enforcing these Regulations. Purpose Groups Purpose groups can apply to the whole building or to a compartment in the building. ADB recommends that different uses within a building should be assessed as separate purpose groups except when certain criteria are met (i.e. classified as ancillary if less than1/5 of the compartment floor area). The design of the existing building incorporates a significant amount of single storey open spatial planning, with the warehousing areas being completely separated from the main office block by fire rated construction. Therefore, when account is taken of proposed material alterations and the definitions noted in Appendix D of ADB the proposed warehouse compartment is classified as Purpose Group 7(a) Storage and Other Non-Residential. The existing multi-storey office compartment is classified as Purpose Group 3, Office. Supporting documentation In tandem with the application of recommendations in ADB, a fire safety engineered approach has been used where considered appropriate for aspects of the buildings design. This approach has used recommendations from the following guidance documents to achieve a robust fire strategy: †¢ BS7974 Application of fire safety engineering principles to the design of buildings (BSI 2003) †¢ BS9999 Code of practice for fire safety in the design, management and use of buildings (BSI 2008) †¢ BS5588 Fire Precautions in the design, construction and use of buildings; Part 5 Access and facilities for fire-fighting (BSI 2004) †¢ BS5588 Fire Precautions in the design, construction and use of buildings; Part 8 Code of practice for means of escape for disabled people (BSI 1991) BS7974 framework BS7974 is specifically noted in standard fire safety guidance material as providing further guidance on fire safety engineering principles. Figure 4 presents the basic fire engineering design process suggested in BS7974. Figure Deviations BS7974 states the following regarding the use of fire safety engineering in buildings that are otherwise compliant with standard practice: In many projects it is likely that the provisions of existing codes of practice and other guidance will be largely followed and that fire engineering techniques will not be necessary (or may be used only to justify limited departures from the codes). At its simplest the QDR team may therefore, define the acceptance criteria in terms of compliance with existing code recommendations. The acceptability of a particular design may be evaluated by means of a comparison. The level of safety provided by alternative fire safety strategies can be compared with that achieved by the well-established codes. This approach involves deterministic and/or probabilistic techniques and requires less extensive analysis than a full study. The objective of a comparative study is to demonstrate that the building, as designed, presents no greater risk to the occupants than a similar type of building designed in accordance with a well-established code. Most existing codes and guides allow elements of trade-of f and/or alternative measures. Examples can be found for fire resistance, compartment sizes and building separation In a comparative study these examples may be applicable without the need for detailed analysis. The evacuation strategy for the proposed buildings will involve simultaneously evacuating all areas on activation of the fire alarm system. As part of the Management and Health and Safety procedures the management team shall have prepared and implement procedures for the safe evacuation of occupants from the building. Required Safe Egress Time and Available Safe Egress Time In performance based fire safety engineering approaches it is fundamental that the evaluation of the complex interactions between fire, occupants and buildings for means of escape considers the following: †¢ Required Safe Egress Time (RSET) time to detection warning time (alarm) response time (occupant pre-movement) travel time queuing †¢ Available Safe Egress Time (ASET) Time to untenable conditions governed by fire growth, smoke production and size of room. A simple diagrammatic representation of the relationship between ASET and RSET is shown in figure 5 Research on Evacuation Times Standard fire safety recommendations for means of escape relate to travel time, i.e. the time taken to travel to and through exits to a place of relative safety. However, it is widely acknowledged that the time taken for occupants to start to evacuate can be considerably longer than the time taken to actually move out of the building. Significant research has been carried out in recent decades on occupant behaviour during building evacuations. Fires and human behaviour by Canter in 1990 and Safety and the built environment by Sime in 1988 were significant contributions. Through such research it is now widely acknowledged that occupants behaviour varies appreciably depending on a wide range of factors such as social affiliation, role and responsibility, commitment to a present task, the presence of a focal point, etc. BS7974-6 Human Factors: Life safety strategies occupant evacuation, behaviour and condition is the latest guidance available in relation to human behaviour in evacuatio ns. Recognition and Response Times How occupants respond to a fire will depend initially on the cue they receive. The components of occupants evacuation time are recognition time, response time and travel time. Both recognition and response times are known as pre-movement time. The former represents the time taken to appreciate that the alarm is a fire alarm relating to the occupant (as opposed to a security alarm, car alarm, etc). During this time occupants will continue with activities as they were prior to the activation of the alarm, e.g. staff members undertaking duties, etc. The latter represents the duration taken by occupants to begin to move towards an escape route, e.g. investigative behaviour, shutting down machinery, etc. In warehouse buildings occupants are generally familiar with their surroundings and are trained in fire emergency evacuation protocols. In the proposed storage facility and associated offices, occupants should be familiar with the sounding of the fire alarm and as such would commence evacuation reasonably promptly. Where a reasonable standard of fire safety management is provided and a high standard of automatic fire detection is provided, BS7974-6 recommends that familiar occupants of a building can be expected to take between 1mins and 2mins before they start to evacuate. By comparison, occupants of an unfamiliar building with a complex internal layout and a more basic standard of fire alarm system could take up to 15mins before commencing an evacuation. Recent research would indicate that even in unfamiliar buildings, occupants prompted by familiar staff can commence their evacuation within the first 30secs. Impact of Evacuation Management To comply with ADB and other fire safety legislation a reasonable standard of management will need to be provided in the building. This will include regular fire drills and the appointment of fire wardens for various areas to encourage an efficient evacuation of the building in the event of a fire. Such protocol should assist in limiting the recognition and response times of occupants. However, the proposed strategic approach to fire safety adopted in this fire strategy will not place any greater onus on management of this building than would be considered reasonable for any other storage facility of this size. An extract of Table C.1 from BS7974-6 is partially replicated in Figure 6. This demonstrates the potential variation in pre-movement times of evacuees which is dependent upon on the level of management and fire alarm provision. The management of this building will adopt a proactive fire safety management approach to comply with standard fire safety regulations for the workplac e. Figure A1-A2: Automatic fire detection and alarm throughout the building A3: Automatic fire detection and alarm only in certain areas, or manual call points only throughout Components of Available Safe Egress Time The Available Safe Egress Time is the time from ignition until conditions on occupants escape routes become untenable. The time taken for hazardous conditions to occur on the escape route will depend on three governing factors: †¢ the growth rate of the fire (and rate of smoke production) †¢ time to sprinkler activation and containment of fire size †¢ the compartment size/smoke reservoir Determination of Design Occupancy in the Warehouse Compartment To assess the likely required capacity of escape routes in speculative buildings, floor space factors are commonly used. When a designated bespoke occupancy is not known there are varying recommended floor space factors in current guidance documents that can be used. The proposed works are not for a speculative end user and Sainsburys have a good understanding of necessary staffing levels to carry out their logistics operations based on current arrangements and their other warehousing operations across the UK. Fire Growth Rate During the evacuation period the main hazard to occupants is smoke. The amount of smoke produced is directly linked to fire size and fire growth rate. The most common method of determining fire growth rates for unsprinklered fires is through the use of t-squared fires. Figure 7 illustrates the heat release rates over time of the four common fire growth rates published by the National Fire Protection Association (NFPA). BS7974 acknowledges that storage warehouse commodities growing unchecked will generally follow an ultra-fast fire growth rate. This attracts a coefficient of g = 0.187kW/s2. Charters et al undertook a recent study to review the probabilistic aspect of fire growth in storage warehouses serving retail facilities. One of the main findings of the research was that fires in high-racked storage cash and carry warehouses were ultra-fast growing. This correlates with BS7974-1. An ultra-fast growth rate will be used for the comparative assessment of both the proposed and code c ompliant layouts. Figure Fire Size Sprinklers are installed in buildings to suppress fire size by the distribution of water so as to decrease the heat release rate and pre-wet adjacent combustibles while controlling gas temperatures to avoid structural damage. The proposed warehouse compartment will be fitted with a comprehensive in-rack sprinkler system to ensure fire size is kept to an absolute minimum. Figure 8 below from BS7974-1 demonstrates sprinkler control and extinguishment. Figure Given the enhancements to the property protection sprinkler, the proposed model will be based on a sprinkler controlled fire scenario. Although, there is significant potential that the provision of in-rack sprinklers will fully extinguish a fire, for the purposes of this comparative assessment, it will be considered that the fire size on sprinkler activation in the proposed building will be controlled as per (b) in Figure 7 rather than (d) i.e. the fire being extinguished. This provides an additional factor of safety for the analysis. There has been a number of real fire tests carried out on high rack storage arrangements by insurance companies. Tests carried out by Underwriters Laboratories Inc. concluded that fire size is unlikely to exceed 5MW where in-rack sprinklers have been provided. Smaller tests on single racks of clothing would indicate a typical peak heat release rate of 2.5MW for isolated arrangements. BRE 368 would also suggest a peak heat release rate of 2.5MW for sprinklered retail fires using fast response sprinkler heads. Travel Distances at Ground Floor Level The final exits from Ground Floor Level, independent of the Office Block, will be maintained as part of the proposed works. The existing exits are well distributed around the external faà §ade thus ensuring that occupants can turn their back on a fire and move towards an alternative exit. Existing travel distances to final exits will remain are unlikely to exceed 80m. Code Recommendations When minimum fire protection measures are provided (i.e. manual fire alarm, 2m floor to ceiling height, etc), ADB suggests maximum travel distances in warehouse accommodation of 25m in a single direction of travel and 45m where two means of escape are provided. The proposed building contains a number of inherent fire safety features such as high ceilings, automatic fire detection, sprinklers and an open plan environment. Such features assist in prolonging the onset of hazardous conditions and increase the chance of a person becoming aware of a fire in the early stages of its development independent of the alarm being raised by others. Therefore, the basic recommendations set out in ADB are considered to be unduly restrictive for the proposed building. A detailed assessment of allowable travel distances will be based on the recommendations of BS7974 and the results of this analysis will be presented in the detailed Fire Strategy Report (FSR). A detailed bespoke fire engineering analysis of allowable travel distances based on the recommendations of BS7974 and incorporating Computational Fluid Dynamics (CFD) modelling will be carried out when layouts have been finalised. The results of this analysis will be presented in the detailed FSR in due course. For the purposes of this OFSR and preliminary design we have carried out a preliminary two zone model analysis to gain an understanding of the likely results to be obtained from the detailed CFD modelling. AUTOMATIC FIRE DETECTION AND ALARM Time to Detection and Alarm for the Proposed Arrangement It is proposed to provide a high standard of automatic fire detection and alarm system throughout the Warehousing compartment. The standard of detection and alarm in the building will affect the general time to warning for occupants and provide an enhanced level of fire safety through early warning and shorter evacuation times. Activation of the sprinkler system will also lead to the fire alarm sounding throughout the building. To ensure a conservative estimation of fire alarm activation our analysis has been based on an anticipated sprinkler activation time of 123sec Time to Detection and Alarm for a Typical Code Compliant Arrangement Many code compliant warehouse facilities with code compliant travel distances only require manual fire detection to meet with code recommendations. Therefore the time to detection would depend on the time taken for occupants in the room of fire origin to raise the alarm. However, should the room of fire origin be unoccupied then the time to alarm for people who may be in rooms remote from the fire would depend on them or other occupants becoming aware of cues of the fire scenario, e.g. sounds of burning material, smell of smoke or seeing smoke through a vision panel. Although BS7974-6 recommends a time to detection of at least 15mins for such scenarios, a reasonable worst case for a typical code compliant open plan warehouse could be 3 5mins. Pre-Movement Times The elevated walkways will be accessed by a relatively small number of transient staff who should be familiar with their surroundings and location of their escape routes. In compliance with health and safety legislation, fire drills will be carried out on a regular basis. Therefore, staff should be familiar with the fire alarm signal and the evacuation procedure. Current fire research would suggest that occupant pre-movement times in a managed facility such as this Sainsburys Distribution Centre is between 30secs and 60secs after alarm. However, BS7974-6 Table C1 (see Figure 5) conservatively presents a 120secs occupant premovement time for this type of occupancy. In line with BS7974-6 recommendations the code compliant layout could be 900secs. However, the comparative analysis will consider a pre-movement time of 120secs for both layouts. This is an onerous consideration and as such adds a significant degree of conservatism to the analysis. Travel Times Extensive studies have been carried out on the travel speeds of people of various abilities. CIBSE Guide E Fire Engineering and BR459 Fire Safety Engineering A Reference Guide both state that a travel speed of 1.2m/s is considered reasonable for able bodied people in low occupant density areas. This is based primarily on work by Pauls and Fruin. Personnel who will be accessing the proposed elevated walkways will be doing so to maintain/ensure the smooth operation of the automated system and will need to be reasonably mobile/physically fit to carry out such operations. Therefore, a travel speed of 1.2m/s is considered reasonable for this assessment. As previously noted travel distances on elevated walkways of the Automated Hanging Garment Racking System could be up to 100m when racking layouts are finalised. Based on a 1.2m/s travel speed it could take these occupants 84secs to reach a storey exit. For a typical compliant layout with a 45m travel distance it would take 37.5secs to rea ch a storey exit. For the above RSET components, Table 2 below presents the corresponding trset Δ . The above analysis would indicate that occupants located on one of the elevated walkways could Conservatively take up to 327secs to evacuate from the upper walkway levels of the automated hanging garment racking system. The analysis also demonstrates the benefits of providing a good standard of automatic detection and an in-rack sprinkler system that is linked to the fire alarm system as such systems should ensure that the required safe egress time from the proposed building is kept to a minimum. As can be seen from Table 2 above such systems should also ensure evacuation times from the proposed building would be comparable with many typical code compliant arrangements, if not better. To meet with code recommendations a Type M manual fire alarm system would be necessary in a standard warehouse building. However, the provision of an automatic fire detection and alarm system is an integral part of the overall fire safety package from a fire engineering perspective. The current fire alarm system will be extended to ensure the earliest possible detection of fire in the vicinity of the Automated Hanging Garment System areas. The system will provide high standard smoke detection coverage above and to the underside of elevated levels of the Automated Hanging Garment System level. The sprinkler system will also be linked to the fire alarm system so that in the event of a sprinkler head activating the alarm will sound throughout the building thus ensuring the earliest possible alert of the need to commence evacuation. The additional provision of smoke detection and linking the sprinkler system to the fire alarm is considered a significant additional life safety benefit whi ch should substantially reduce the time to alarm and pre-movement time of occupants in the building. The Type L5 fire alarm system will be designed in compliance with BS5839-1. Office Block Compartment No changes are proposed for the Office Block Compartment. Means of escape from the Warehouse Compartment is independent of the Office Block. Therefore, no further analysis of this area is necessary as part of the proposed works. EVACUATION PROCEDURES Comprehensive fire safety management procedures should be developed in consultation with the Enforcing Authorities. A detailed Fire Safety Management Plan should be developed for the management of the proposed scheme to ensure the safety of all occupants is not comprised. This section only serves as a brief introduction to the evacuation procedures which will need to be written into the Fire Safety Management Plan. Further guidance can be found in BS5588-12 Managing fire safety.

Studies in Emotional Intelligence Essay -- Psychology Research Papers

Studies in Emotional Intelligence There is a growing interest in the concept of emotional intelligence, and with that growth is a gap between what we know and what we need to know. In the article, Emotional Intelligence: Issues and Common Misunderstandings, Robert J. Emmerling and Daniel Goleman inquire as to what emotional intelligence is, how it differs from other established constructs within psychology, whether or not it can be developed, whether or not it can be a better predictor of work performance than traditional measures of intelligence, whether or not it should be measured at all, and how it relates to ethics. Emotional intelligence has a potential utility in predicting a range of criterion across different populations, but its predictive validity depends on the context, criterion of interest, and specific theory used. Traditional intelligence measures have been unable to account for a significant portion of variance in career success and work performance. IQ was originally thought to account for twenty-five percent of how well people perform in their careers, while it was later discovered that IQ actually accounted for between four and ten percent. A more recent study found that IQ is a better predictor of work and academic performance than EI, but when it comes to becoming an extraordinary performer, IQ may be a less powerful predictor than EI. The failure of IQ to account for the variance between performance and success is especially evident among managers and senior leaders. IQ alone is unable to predict this as well as competencies that integrate emotional, social and cognitive abilit ies. Emotions and cognition are interwoven in the aspects of emotional intelligence, especially in interpersonal functioning, empathy, motivation, affective self-regulation, self-awareness, and complex decision-making. The range restriction on the variable of IQ among managers and senior executives may be the cause of IQ’s inability to predict the variance in performance among managers. Leaders must process a great deal of complex information on a daily basis, and that requires a high level of cognitive ability. IQ simply provides a basis on which to recognize a minimal capability that all who are within a certain job pool should have to keep their job. IQ should remain a predictor of the vocations that are available to an individual of a certain in... ...iduals may only receive feedback related to technical competence, people skills, or leadership style. For an individual to improve on any ability, he or she would need realistic feedback concerning their baseline abilities and progress. Providing valid and reliable feedback on specific emotional and social competence helps to provide individuals with insight into their strengths and areas for development. Providing a more balanced view and a supportive environment can help to overcome feelings of defensiveness that often undermine the development of emotional and social competencies. Emmerling and Goleman inquire as to whether or not EI is morally neutral of or if it interacts with an ethical dimension. In psychology, morality and ethics are treated individually in a dimensin beyond the issues at hand. Certain aspects of EI certainly tend to promote prosocial behavior. Self awareness must be deployed to act in accord with one’s own sense of meaning, purpose, and ethics. Empathy appears to be an essential step in fostering compassion and altruism. These two individuals stress that the progress of emotional intelligence is impressive, but there is still a lot to be discovered.