The Challenges Of The Construction Industry

These parts make up the sound waves and they travel through a medium which is the material that a wave energy travels through. On page 10 in Activity 2 we had to fill out the table on how to make a louder sound and we learned that to have a louder sound the compressions have to be larger and to increase the frequency the compressions also had to be larger. When we did the activity with the slinkies this was the case because when we had more compressions the sound was louder and the frequency increased. In Activity 1 on page 4 we learned that sound intensity is how much sound energy passes through a certain area in a certain amount of time as it spreads out from the source. Decibels are a unit of measure that indicates the relative intensity of a sound. In Activity 1 on page 5 when we were looking at the table it showed us that as the sound intensity increases the decibel increases because the decibel measured how intense the sound was. According to the chart on page 4 the decibels at a quiet library is 40 dB and the relative intensity is 1000, however if the noise source is some explosions then the decibels is 160 and the relative intensity is

Sound is something quite special, impactful, and adds layers of elements and complexity to a film. As with the progression of the movie making medium, sound has grown and changed drastically over the decades. However, sound cues in the form of effects, dialogue, and everything in between, shapes our perceptions of a scene and movie.

As well as lighting, sound was used very effectively to stage the story. For example “echoes” were created in the alleyways, to make us think that Eddie’s house was a long way away. These echoes were also used to symbolise Eddie’s loneliness. This could show that there is emptiness in Eddie’s heart that can only be filled by a close friend or a brother. There was a bold use of sound especially in scary, dramatic or important scenes. This added to the drama of the overall performance, it made the audience feel a variety of emotions. In the scene when Mrs. Lyons tries to murder Mrs. Johnston, the sound affects really emphasised how Mrs. Lyons was feeling and her sheer madness. The use of surround sound made me feel like I was in the scene and it made the whole performance much more realistic.

Sound waves are nothing more than an energy transfer through a medium be it through a liquid, solid, or a gas. Sound pressure or intensity is measured on logarithmic scale in decibels dB which increases on an order of magnitude. For instance a quiet conversation would be around 30 dB and whereas the human pain threshold would be just over 100 dB. While the pitch or frequency of the sound is measured in hertz or Hz, the higher the hertz the higher the pitch of the sound and vice versa (Hildebrand, 2004).

Review the Plagiarism and Academic Integrity website a http;/www.lc.unsw.edu.au/plagiarism/pintro.html to ensure they are familiar with the requirements to provide appropriate acknowledgement of source materials; and

Sound waves are caused by disturbances in the air. These disturbances are usually caused by a vibrating object. In the case of the MTCC, the CTA train railroad is right above the MTCC. As the train is traveling along

Major types of skills include, listing skills, reading skills, management skills, thinking skills, problem skills, time-management skills, and working well with others. All of these skills will help anyone succeed in their career. If a construction manager does not have these skills, it will make his or her work very difficult. You may also be able to do some training to gain some of these skills. Most colleges and university will teach you the maximum amount of skills needed for the job, but if some have problems within certain aspects of the job, many online classes and in-school classes will be there to help teach them (careerinfo).

According to Gill (2012,p. 11) the equation for Acoustic impedance is Z=ρc, where (Z=Acoustic impedance, ρ =density of medium and c =velocity of beam). From this equation is understood that acoustic

Sound is a wave, and a wave can be remembered as a medium, carrying energy from one point to another. The sound wave has a resemblance of a slinky in its nature, for many reasons. The disturbance goes from one place to another, carried by the medium. Typically, the medium will carry energy through the air, although it could be any substance like water and steel. There is an original source of the wave; anything from someone’s vibrating vocal chords, or a tuning fork. Then, the sound is transported through the medium through particle-to-particle interaction. If the sound wave is moving through the

As a result of per the Building laws, the insulation is against airborne sounds like voices, not against the impact of sound against the walls like hammering a nail, noise pipes or vigour bed sheets. Once sound meets the building, like a floor, a ceiling or a wall the sound reflects back to the area, a part of it is absorbed by the fabric and the left over is transmitted to the succeeding area. The sound absorbed, mirrored and transmitted depends on each of the thickness/thinness of the wall as well as the material on the wall. (Figure 1)

The patented cork underlay also provides a sound barrier. You will definitely notice the difference in noise not only in the room where a Torlys EverWood Luxury Vinyl Plank floor is installed, but rooms above and below as

Construction projects are always unique and risks raise from a number of the different sources. Construction projects are inherently complex and dynamic, and involving multiple feedback processes. A lot of participants – individuals and organizations are actively involved in the construction project, and they interests may be positively or negatively affected as a result of the project execution or project completion. Different participants with different experience and skills usually have different expectations and interests. This naturally creates problems and confusion for even the most experienced project managers and contractors.

A short time later, the same sound will reach the listener from the reflective surfaces around them such as the walls and ceiling, this is called the early sound. This first group of reflections will reach the listener 50-80ms after the direct sound. This time delay has a significant effect on the overall sound heard by the listener. Then more reflected sound will arrive “thick and fast from all directions, but become smaller and closer together merging after time into what is called reverberant sound” (Rossing, Moore & Wheeler). If the source keeps emitting sound, reverberant sound builds up until it reaches equilibrium. When a sound stops, the sound pressure level will decrease at a constant rate until it becomes inaudible. However for impulsive sounds the decay of reverberant sound begins immediately and there is no equilibrium. Sound will die out quicker in a room that is occupied due to absorption by the occupants, as an audience absorbs sound in proportion to its size. When listening to a” full size symphony orchestra most listeners find sitting 60ft from source, which is roughly the centre of many of the world’s best concert halls, to have optimum direct sound” (Beranek 2004). The timing of the early sounds is the basis for creating good acoustics and the timing of these first reflections is affected by their reflection direction.

Every wonder why construction workers, Djs, Sound guys, Night club workers wear protective ear wear? Long term exposures to the amplitude of certain sounds at certain levels can cause very real deafness. Acoustics can also be used to levitate very light objects, but it could only be a matter of time before we could use acoustics to move heavy objects with the right amount of power.

The construction industry much like other industries is dependant with the distribution of “scarce resources” (Drake,1994). Many of its resources known as the factors or production i.e. labour, capital, land etc. are limited (Gregory-Mankiw, 2008), however, wants and desires within the industry are infinite (Myers, 2013). Kishtainy notes that this creates two problems; at any given time, there will be a fixed number of resource, against numerous wants. Sloman 2003 adds that in an effort to rectify this, he argues that we must make choices, in terms of choices within the construction industry Myers suggested that firms need to considered their investments made, how they construct and for whom they construct for.