Abstract The Physical Layer is the lowest layer of the Open Source Interconnect Model (OSI). It is the layer that deals with all the measurable, physical entities associated with the network. At this layer it is specified how much bandwidth (Baseband or Broadband) will be used in the transmission of data on the network. This layer also includes the physical topology (physical lay out) of the network such as: Bus, Star, Ring or Mesh. The Physical Layer includes these devices: Network Interface
Asthenosphere: The Asthenosphere is the second physical layer of the Earth, it lies underneath the Lithosphere. The Asthenosphere is made up of matter that that is in the molton or semi-molton state.The average temperature is between 1400 degrees celsius and 3000 degrees celsius. It is 60-155 miles thick. The Asthenosphere is composed mostly of iron and magnesium silicates. It is plastic-like, which allows the Lithosphere to slide across it. The Asthenosphere is a layer of the Mantle composed of slowly-moving
a seven layered model. The seven layers are : Physical Layer The physical layer defines the electrical, mechanical, procedural, and functional specifications for activating, maintaining, and deactivating the physical link between end systems. Such characteristics as voltage levels, timing of voltage changes, physical data rates, maximum transmission distances, and physical connectors, are defined by physical layer specifications. Data Link Layer The data-link layer provides error-free transfer of
geological layers of vocanic ash and sediment. When a anthropologist finds a fossil in a undistirbed layer of gray ash, you know that it is younger than the fossil in the layer of red ash below, and that fossil is younger than the fossil in the layer of brown ash below it.(Johanson 65) The basic theory here is that a certian site cantians a geolgical column key that is made up of differant strata layers, the fossils get older as they move down the key, and are found in differant layers of strata
are several traits that link them together. Most cnidarians are dipoblastic, which means that they are composed of only two layers of cells. The outer layer is known as the ectoderm or epidermis, and the inner layer is known as the endoderm or gastrodermis. These layers contain the nerve nets that control the muscular and sensory functions of the animal. Between these layers is a jelly-like noncellular substance known as mesoglea, which in true jellyfish constitute the vast bulk of the animal (hence
expectations by staying up under the weight of the book, not taking too long to create, and have a considerable height advantage over the other towers in the class. Design One design that we discussed consists of a tower with a rectangular base, two layers of rectangular prisms atop that base, and a pentagonal prism on the top of the structure. This design would provide the necessary support at the base and is also easy to make in twenty minutes. However, it would be lacking in height if we were to
multi-layered nature of people's personalities. As the outer skin of an onion is peeled away another layer is found beneath it, and if you remove that layer you will expose another layer, and so forth. The same holds true for people; as we get to know someone better we expose more layers of their personality and hence become closer to the core of the individual, or the private self The outer layers of our personality is the public self, or characteristics that are apparent to people we do not know
Aerosol Spray Cans Spray cans produce an aerosol, the technical term for a very fine spray. They do this by means of a pressurized propellant, which is a liquid that boils at everyday temperatures. Inside the can, a layer of gaseous pressure increased, and eventually it becomes so high that boiling stops. when the nozzle is pressed, the gas pressure forces the product up the tube in the can and out of the nozzle in a spray or foam. The propellant may emerge as well but, now under less pressure
investigate how to treat the different types of cancer and how to avoid it. Skin cancer is a term used to describe cancer in skin tisssues. The skin is made of several layers. Skin cancer is classified according to the layer it develops in. Skin cancer is classified according to the layer it develops in. The epidermes is the skin’s outer layer and is made up squamous cells, basal cells and melanocytes (common cancer, 2000, P.2) Skin cancer occurs twice often in men than in women. The highest rates of
Differentiated instruction is a teaching theory based on the premise that instructional approaches should vary and be adapted in relation to individual and diverse students in classrooms (Tomlinson, 2001). All though, “every teacher who has entered into a classroom has differentiated their instruction in one way or another.” (Levy, 2008) Teacher can use differentiated instruction in four elements, including content, process, products and the learning environment. Content is what the students needs
results in formation of overlapping layers namely D, E, F1 and F2. In each layer, the ionization density peaks at a certain altitude and decreases above and below it. The D region has lowest ionization density and is available only during daytime. The ionization density has a peak value around 90 km. It is an absorbing region for radiowaves. The E region is known as the current bearing region. It lies in the range of around 90-125 km. The peak density in this layer is at about 120 km. It contains both
The True Meaning Behind that Layer of Blue Nail Polish When the red-based shades such as pink and orange were the only type of nail polish females dared to wear, I remember wondering if in the near future they'd dare switch to completely new shades such as blue or green. Now that day and age has come when all different shades of blue can be seen painted on teens' nails. Yet, this new choice of blue isn't just another craze of the moment. Rather, it symbolizes something slightly deeper. This latest
Thomas Hobbes begins Leviathan with Book 1: Of Man, in which he builds, layer by layer, a foundation for his eventual argument that the “natural condition” of man, or one without sovereign control, is one of continuous war, violence, death, and fear. Hobbes's depiction of this state is the most famous passage in Leviathan: [D]uring the time men live without a common Power to keep them all in awe, they are in a condition which is called Warre; and such a warre, as is of every man, against every man
lungs. Today we will talk about many different parts of the heart: The Three Layers of Muscle, Atriums, Ventricles, Systole and Diastole, Treatments for the Heart, Valves, and many Diseases. The heart has three layers of a muscular wall. A thin layer of tissue, the pericardium covers the outside, and another layer, the endocardium, lines the inside. The myocardium is the middle layer and is the biggest of all. Myocardial Infarction is a disease later read about in this
and guard it jealously. The Yanomamo word for being poor is literally translated as without tobacco. Cotton is also grown in the village gardens to provide the materials for hammocks and clothes. The Yanomamo envision the universe as having four layers hovering at...
portion to be turned into a new layer. Enhance Perform color correction or modification on your photos. Paint Tools Draw on your photo and use other photo retouching functions like Sharpen or Remove Red-Eye. Special Effects Modify your image with special effect filters. Text Add text to your photos. Layers Different parts of images are stored in "layers" so each part can be manipulated without changing the rest. You can, for example, add text on a layer then resize, paint, or remove
individual’s right of nature, an individual will trade a piece of their right of nature in order to promote cooperation between others. According to Hobbes, these two are not enough to keep human kind from betraying one another. There needs to be another layer of control. This is where the third law comes in to fully form the concept of justice. The third law simply states that men need to perform their valid covenants, which becomes Hobbes’ definition of justice. From this, injustice is defined as not performing
have grown both in number and technological capability, that influence has grown with us. Lately, the effects of our increased activity have begun to manifest themselves in a multitude of subtle, and some not so subtle ways: we have thinned the ozone layer and may now be starting to change the very climate system upon which we and all other life on Earth depend. In effect, we are experimenting with the future, but unlike performing a laboratory experiment, which can be scrapped and begun anew if it fails
undisturbed layer of sedimentary rocks; the layers on the bottom are older than the layers towards the top. The pictures I have taken show very good examples of this. By using the principle of superposition we can know that the layers toward the bottom are older than the layers toward the top. The rock body shown in the pictures attached, started out as one layer, as millions and millions of years passed more layers of sedimentary rock were placed on top of each other one after another, each layer was deposited
which can cause bumps, sores, growths, etc. Skin cancer is a deadly disease with many causes, but the advantage is that it can be prevented. Problem/Definition Skin cancer is a disease where cancer (malignant) cells are found on the outer layer of the skin (epidermis). The three types of cells found in the epidermis are squamous cells, basal cells, and melanocytes. These cells in time grow to be cancerous. Thus, the three types of skin cancers are squamous cell, basal cell, and melanoma