which the surface of the film was modified by Oxygen plasma treatment. The PP film was treated in various intervals of time of 60 s, 120 s, 180 s, 240 s and 300 s with three various RF power settings of 7.2 W, 10.2 W, 29.6 W. The contact angle was measured to characterize the wettability. The oxygen functional groups were generated on the surface of oxygen modified PP which was observed by Fourier transform infrared spectroscope and it was resulted in the improvement of wettability. The surface morphology
depends on the gas used. The RFGD treatment involves the removal of impurities and weakly bound organic contamination from surfaces through the use of the energetic plasma created from gaseous species. The device is connected to a vacuum to remove all atmospheric contaminants and debris produced throughout the process. RFGD can treat a wide-range of materials as well as surfaces with high level of roughness and different geometries. It can be applied to samples that are electrically conductive or non-conductive
one of the most destructive natural phenomena, consist of rapid vibrations of rock near the earth's surface. Because of their unpredictable occurrence and enormous capacity of destruction, they have brought fear to mankind since ancient times. A single shock usually lasts no more than a few seconds, but a series of smaller quakes may last for as long as five minutes. The quake felt on the surface is always the result, not the cause of some underground geologic process, and in many cases the damage
rate of reaction: · Surface area · Pressure · Temperature · Catalyst · Concentration Concentration ============= If the concentration of a solution is increased there are more reactant particles per unit volume. This increased the probability of reactant particles colliding with each other. Pressure If the pressure is increased the particles in the gas are pushed closer. This increases the concentration and that will change the rate of reaction. Surface Area If a solid is
the Earth’s surface by sound or shock waves usually generated by the energy released from rocks rupturing under stress or by friction between moving rock materials at or mostly below Earth’s surface. A seismologist is a scientist who studies earthquakes and seismic waves. CHAPTER 1 - What Are Seismic Waves? =================================== Seismic waves are the waves of energy caused by the sudden breaking of rock within the earth or an explosion. They are the energy that travels
Surface Area and Rate of Oxygen Production Investigate: To determine the relationship between surface area and rate of oxygen production when potato tissue is placed in Hydrogen peroxide solution Planning ======== My prediction I predict that the bigger surface area of the potato chips, the faster the rate of reaction of the hydrogen peroxide is being use
what extent does the surface area to volume ratio of an object affect the rate of heat loss from the object Hypothesis: As the ratio of surface area to volume of an object decreases the rate of heat loss from the object will also decrease. Objects with the same surface area to volume ratios loose heat at the same rate so long as there are not other variables involved. Background Knowledge: The surface area to volume ratio of an object is determined by dividing the surface area by the volume and
Osmosis is defined as free water molecules diffusing from a high concentration to a low concentration through a semi-permeable membrane. Variables - The rate of osmosis effected by many different living things, temperature of the solutions, surface area over which it can occur, Volume of solution, Volume of potato, distance through which the free water molecules have to pass and finally the difference in concentration of the solutions. This final factor is the one that we are going to test
I wasn’t surprised that our General Manager of RAW, Eric Bischoff put me to manage Carlito, the most un-cool person if not THE worst WWE superstar in the business. After Matt Hardy had to leave the company, I was left with no one to manage. I’m going to miss him. He didn’t deserve to leave. I was fond of Matt. I was intrigued by his raging determination to payback Edge for what he did (betraying him, let alone steal his woman). Eric Bischoff was impressed with my valet skill, he thought I could help
The first agency I volunteered to work for is a program called Summer Quest. Summer Quest is designed to help students that are in the sixth through twelfth grade experience a "positive summer experience." What this actually means is that it provides students an opportunity to do fun and exciting things, in a positive atmosphere. Instead of the students sitting at home alone the entire summer, they have a place where they can hang out and enjoy themselves. This is a great program
Since nearly the beginning of human history fishing has been an integral part of the culture and survival of coastal communities. These coastal communities and cities have always been some of the most prosperous and successful because of the added resource of the ocean. In the beginning many areas were so densely populated with fish and shellfish that often a day’s worth of food could be caught by simply wading into the shallows. For example, some of the first English settlers to see the Chesapeake
The movie “Keith” was released in theatres on April 11 in 2008. It was directed by Todd Kessler. Kessler teamed up with David Zabel on doing the screenplay. The story was written by Ron Carlson. The main characters, Natalie and Keith, are played by Elisabeth Harnois and Jesse McCartney. The movie shows how one person can affect another’s life immensely in such an abbreviated amount of time. Keith is a mysterious teenager. He is unpredictable and difficult to follow. Natalie is a control-freak
gravity on Mars is about one-third of that on Earth. Though it is much smaller, Mars does have the same surface land area as Earth. Other than Earth, Mars posses the most highly varied and interesting known terrain in our solar system. The surface of Mars is a very hostile place however it is more like Earth’s surface than any other planet in our solar system. Much of the Martian surface
screen devices such as phones and tablets. Anyone who has held a mobile phone or handheld game knows that in a short period of time, the glass display becomes visibly dirty without anti-smudge coatings. Unwanted finger print smudges on touch screen surfaces significantly reduces the performance and utility of the device, as well as the quality of the image and the enjoyment of the user. Smudges are composites of materials resulting from contact with human skin and from being stored in pockets. The
Root Surface Caries Caries can affect any surface of the teeth. The most commonly seen caries are found on the crown of a tooth, above the cemento-enamel junction, it is also possible for caries to form on the root surface, below the cemento-enamel junction. Dental root caries has received a great deal of attention in the past few decades. A variety of different patients are at risk for root surface caries. Dentists use several methods of treatment. Root surface caries are also called cemental caries
alien world could exist above the surface. The nature of that world would be beyond their comprehension. You could sit only few inches from the fish, yet be separated from them by an immense chasm. You and the fish lives would be spent in two distinct universes, never entering each other’s world, yet were separated by only the thinnest barrier, the water’s surface. Now imagine that you are in a rainstorm next to the same pond. You notice that the pond’s surface was bombarded by thousands of tiny
Beneath the Surface Review I think the key message that the play was trying to convey was that mistakes happen all the time. In this case, the purpose of the main character’s “dig” through Earth was to help him learn how to forgive himself and be able to move on with his life. The opening act of the play started with the main character, Andy, digging his way from Hawaii to Botswana. Over the course of his journey, the audience is introduced to an array of characters that are responsible in helping
The Pigman by Paul Zindel is about the lives of an old man, Mr.Pigman, and two teenagers, John and Lorraine. John and Lorraine were two “normal” children that went to school and had a rough time in their homes. The growing bond between John and Lorraine all started when one day John and Lorraine met on the school bus one morning. Due to the fact that the first time they met was on a school bus, there was no room for mortification to occur. Soon after, John started getting himself into trouble at
The Effect of Weight on Sliding Friction Between a Block and Surface Planning ======== In this investigation we are going to find out what effect weight has on sliding friction. Friction is the force that is between two objects that are in contact with each other. The force is always present even though people only think it is there when the object is moving. Leonardo da Vinci was one of the first people to experiment with the idea of friction. He came up with two types of friction;
as felt, asphalt, slate, tiles, asbestos, concrete, brick, wood, glass and metals. They can also be applied to sprayed polyurethane (p.u) foam insulation. However, it is essential that substrate and structures are properly prepared, and stable. Surface previously treated with silicon based materials will inevitably be difficult to overcoat and... ... middle of paper ... ...5 should be followed at all times. Paints products UN 1263. Keep out of reach of children. Keep away from sources of ignition