Tuesday, February 18, 2020

Assignment Research Paper Example | Topics and Well Written Essays - 1750 words

Assignment - Research Paper Example One of the most notable empires that used communication technologies effectively to handle information was the Assyrian Empire. In the first millennium BC, the Assyrian Empire expanded to an unprecedented size; the empire stretched from River Nile in Egypt to the Iranian mountains, thereby nearly enveloping the modern Middle East. The empire’s ruling elite managed to control the empire despite its massive size primarily because they used efficient communication technologies that facilitated effective handling of administrative messages and records. Constant innovations in administrative technology facilitated the development of communication systems, which facilitated economic growth. One of Assyrians’ most prominent exports was technologies of social management and control, which entailed the technologies such as coercion, information management and control of the empire’s physical assets. Assyrians typically found effective ways of managing storage, movement an d management of goods, armies, people, information and capital. In order to sustain the empire’s massive population, Assyrian administrators developed an administrative structure consisting of four intertwining components that enabled effective communication throughout the empire. These components were the temple administration, the palace, the city or town administration and the provincial administration (Black, 2001). While all components had their individual hierarchies, as well as power bases, the ultimate power typically trickled down from the king. The four structures served to create a balance in power, allowing information and decrees to flow from the king to the common folk. These structures allowed Assyrians to construct a streamlined economic and administrative system that saved on administrative costs, while also controlling a vast majority of the empire’s internal production means. Administrators at the lowest structure (the town/city administration) were primarily tasked with collection of taxes and management of tax records, labor conscriptions, as well as military call-ups. As a result of the effective hierarchical system of communication, the king continually settled deportees from other regions of the empire and parceled out such land as favors in exchange for loyalty. This developed an extremely stratified society with minimally sized aristocratic elite, thereby keeping public expenditure at a minimal. Assyrian military innovation also enabled the empire to maintain a well-organized system of material and food distribution and storage for soldiers and the entire population. Communication problems were resolved through an effective chain of posts, which facilitated speedy communication between distant and capital province. They perfected the communication technology by using horses for military purposes and typical communication aims. One of the reasons why the Roman Empire was quite strong was because of its capacity to communi cate with the masses. Communication held the society together through beliefs in similar laws and myths, which demonstrated a common bond passed down from one generation to another (Black, 2001). Emperors in the Roman Empire used inexpensive means to communicate with the masses, for instance, emperors communicated by displaying gestures,

Monday, February 3, 2020

Magnetic Resonance Imaging Technique Essay Example | Topics and Well Written Essays - 2000 words

Magnetic Resonance Imaging Technique - Essay Example The essay "Magnetic Resonance Imaging Technique" talks about an advanced imaging technique used in the field of medicine under radiology particularly how it works. All bodies expose themselves to water molecules. The water molecule has two protons and hydrogen nuclei. When one is using a powerful magnetic field of a scanner, the overall magnetic moment of different protons aligns themselves in the direction of the field. Turning on of the radio frequency transmitter follows, thus, producing different electromagnetic fields. The electromagnetic field has the appropriate frequency termed as resonance frequency; the protons in the magnetic field absorb and flip the spin. After a while, when the electromagnetic field is in off status, the protons’ spins get to thermal dynamic equilibrium. The bulk magnetizations get aligned by the static field. As a result, this relaxation, radio frequency signals arise; these can be measured using receiver coils. Additional magnetic fields can facilitate learning about the information regarding the origin of the 3D space during the scan. Fields generated by passing electrical current via gradient coils results to varying magnetic fields in reference to the position of the magnet. This also alters the frequency of the signal, as it depends on the origin of the signal. Mathematically, the distribution of the signal can also be recovered from the body; however, this uses the inverse frontier transformation. After the relaxation rates, protons in various tissues return to the equilibrium.