Recent orders
An operating system (OS) is computer software that is used to manage the computer software and hardware components (Vallath,
The Linux Clusters
Affiliation
Course
Date
Introduction
An operating system (OS) is computer software that is used to manage the computer software and hardware components (Vallath, 2006). An operating system offers service to installed computer programs. For programs to run, it is essential for the computer to have an installed OS. Operating systems coordinate and schedule tasks which the system is to carry out. The OS acts as a link between the computer hardware and the programs. Operating systems are found in devices ranging from cell phones, web servers, video games as well as super computers. The most common operating system is Microsoft Windows, android, iOS, Linux, QNX and OS X among others (Finn & Lownds, 2013).
A computer cluster is composed of loosely or tightly connected computers that coordinate in the manner in which they work together to give an output of a single system. Components of a cluster are interlinked via the LAN network. Linux is a product of the GNU Project that resembles UNIX in many ways but it is has its own unique manner it was coded. An estimated 1.9% of computer users worldwide use the Linux platform (Finn & Lownds, 2013).
Linux clusters are used to enhance computer performance, saving cost and increasing system’s comparative speed. The clusters can serve several purposes for companies such as carrying out computerized calculations utilizing the different nodes that are used to enhance performance. The Linux clusters have the ability to create a platform that is utilized in designing leverage for high performance computing (Vallath, 2006).
The Linux cluster provides a base for the running of MPICH, Linux virtual server and distcc. Although Linux works best for high performance machines, not all Linux software work on the cluster platform. It therefore requires plenty of time to retool an application so that it can run on the Linux platform.
The Thunder cluster was released in 2003 and had 1024 node system which was made up of $ CPU Itanium2 Madison tiger4 nodes (Vallath, 2006). The model was ranked second on the 2004 supercomputers list (Chevance, 2005).
Fig 1. An illustation of the Linux cluster and its nodes
After the Thunder, Peloton was released by Linux and was made up of 144 nodes with the clusters having been built in a 5.5 T flop scalable units (Chevance, 2005). The model had a 4 core Opteron deerhound and an 8 CPUs node. The system also had a 2.4 GHz clock and it could accommodate SCF, OCF, ASC and M&IC as well as a capacity of Rhea, Hopi Yana, Zeus and atlas (Finn & Lownds, 2013).
Conclusion
As the years pass, the advancement of computer network and clusters also is enhanced. Technological experts from several operating systems are in a constant battle trying to design products that work efficiently and are also user friendly.
References
Chevance, R. J. (2005). Server architectures multiprocessors, clusters, parallel systems, Web servers, and storage solutions. Amsterdam: Elsevier/Digital Press.
Finn, A., & Lownds, P. (2013). Windows Server 2012 Hyper-V Installation and Configuration Guide. New York: Wiley.
Vallath, M. (2006). Oracle 10g RAC grid, services & clustering. Amsterdam: Elsevier Digital Press.
Howard University
Howard University
Personal Essay
Alania Simmons
9/23/2021
I am interested and enthused to apply for the master’s degree, social work program at Howard University. As a woman of color I understand the importance of attending a historically black college and/or university. As a woman of color that knows the odds against me in my community I always set my goals and worked diligently to achieve them. I began college at a community college, then attended a 4 year college where I studied psychology, thereafter went to graduate school at The Chicago School of Professional Psychology where I studied counseling. During my experience I knew what I needed for success for my graduate experience and it wouldn’t be possible at a predominantly white institution. Achieving my master’s in social work from a historically back college and/or university will contribute to my overall success as a student and social worker in the field. My experience will broaden my opportunities and further my skills required in the field of mental health. My passion is to be a mental health advocate and provide empathy and compassion to the disadvantaged and underserved population.
As a single mother, I have always strived diligently towards my goals since a young child and have always been resilient. During my undergrad experience I went through a lot of unanticipated life events. However, my spirituality, family support and friends have contributed to my resilience. Howard University will enable me to have small classroom settings and an Afrocentric experience that I need to be successful in the Master’s social work program. The empowerment and resilience that lies within me is a part of the true passion I have. In my current career, I want to continue to promote support within this field in its entirety, become a licensed social worker and become an asset to the Howard University social work program.
Working with the mental health population for 10 years has enabled a sufficient amount of experience that I have gained and utilized in the social service field. My years of work experience in the field of mental health has enabled the knowledge to manage cases such as building healthy therapeutic relationships, empathize, effective communication and active listening skills. My work experience as a housing case manager, substance abuse counselor, family centered treatment counselor, and medical agent has provided me with the opportunity to work with a diverse population.
According to Mental health.gov (https://www.mentalhealth.gov/basics/what-is-mental-health) mental health is the emotional and psychological aspect of an individual. Mental health can affect every aspect of an individual’s life from childhood into adulthood. Working with the mental health population for 10 years has enabled a sufficient amount of experience that I have gained and utilized in the social service field. My years of work experience in the field of mental health has enabled the knowledge to manage cases such as building healthy therapeutic relationships, empathize, effective communication and active listening skills. My work experience as a housing case manager, substance abuse counselor, family centered treatment counselor, and medical agent has provided me with the opportunity to work with a diverse population.
My goals are to enhance my knowledge as a professional social worker and understand more in depth the principles of human development, mental health, change theories, behavioral and systematic strategies to facilitate change in the community. My goals upon successful completion is to become licensed, then open up my own clinical practice licensed facility, particularly non-profit. I would like to target the disadvantaged and underserved mental health population. The aim of my program will be to provide supported mental health awareness, housing, employment support services, counseling, and substance abuse programs. I also want to enhance my knowledge and skills by providing and implementing therapeutic interventions to help clients that suffer from trauma, depression, anxiety, stress, unanticipated life events, social injustice, military associated experiences and work development.
An investigation of an ice maker machine as a new invention
Product/Invention (Ice Maker Machine)
Name of Student
Institution Affiliation
This paper brings about an investigation of an ice maker machine as a new invention. An ice maker machine involves a technology that can be incorporated to a home freezer; could be a stand-alone appliance or it can be an industrial machine used to make ice. Usually, an ice maker machine is a stand-alone appliance for making ice. Typically, there are various categories of ice maker machines. The major two categories include tube ice maker machines and block ice maker machine. The latter includes the direct refrigeration ice-maker machine, as an example, which is described and discussed in this paper.
The history of ice maker machines is attributed to the invention of artificial refrigeration. William Cullen initiated and demonstrated the innovation at the University of Glasgow back in 1748 (Bellis, 2014). John Gorrie then developed and built a refrigerator in 1844 using Oliver Evan’s design. Later in 1853, a US Patent 10221 was awarded to Alexander Twining for an ice maker. The first perfect ice making machine was built by Andrew Muhl in 1867 in San Antonio. This machine was meant to assist in servicing the beef industry, which was by then expanding. The first commercial ice maker machines were produced after the ice maker patent was contracted by Columbus Iron Works in 1873 (Woolrich & Clark, 2010). The concept of refrigeration has today contributed to the development of more advanced ice maker machines.
Problems associated with the preservation of food products like meat, fruits, and drinks contributed to the invention of refrigeration, whose concept is used in ice maker machines. Besides, the need to take in cold drinks and ice products like ice creams has contributed to the advancement of the invention (Bellis, 2014). The need to fulfill the demand of ice by people for human consumption in general is the nevertheless the key idea behind the development and advancement of the technology (Focusun Technology, 2014). Direct refrigeration block ice-maker machine is as a result of this advancement.
The direct refrigeration block ice-maker machine is an ice maker machine that produces ice blocks within its aluminum evaporator (Focusun Technology, 2014). In this machine, aluminum material is a key requirement when building the ice maker machine. The ice maker machine is usually made of aluminum material because of its hygienic advantages. Besides, the expectance use of aluminum is extendable because of its metallic property of being rust resistance (Focusun Technology, 2014).
The direct refrigeration block ice-maker machine has a number of features that enhance its operations of ice making. It has a conveying system of pneumatics crawler, which maximizes the protection of ice blocks when harvesting the ice products. It has also special aluminum of aerospace technology level that is outstandingly durable and totally compliant with the required standards of food hygiene. As abovementioned, the use of aluminum as opposed to other metal material like iron or steel is to enhance food hygiene and ensure durability. The system further has a bitzer compressor that offers a high compressing power as well as guaranteeing the production of the ice within the shortest time possible. The same aspect ensures that power consumption is maintained as low as possible (Focusun Technology, 2014).
This ice maker machine uses a technology that has a proven performance that has already been secured by top global brands. Regarding the module design, the entire set is made up of a machine unit module, an evaporator module, and a cooling tower module. It is generally designed in such a way that both shipping and installation are easy (Focusun Technology, 2014).
One of the key parameters considered when designing and making the direct refrigeration block ice maker machine is temperature. The key aspects defining temperature in this case include ambient temperature and water inlet temperature which are usually 35o Celsius and 20o Celsius respectively. Operating power is another key parameter and includes the total running power, installment power, and cold water pump operating power, whose measurement is typically 2.055 Kw, 2.5 Kw, and 0.09 Kw respectively (Focusun Technology, 2014). The other important parameters are the compressor, the condenser, working time, and its dimensions. The compressor parameter involves aspects like refrigeration capacity, operating power, and horse power. The condenser involves consideration of the fan power and the cooling way. On the other hand, the working time refers to the ice making time and the ice falling time. Its dimensions are essential and include block ice weight, ice maker size, and the size of the pipe feeding water into the machine (Focusun Technology, 2014). The parameters are critical when designing this kind of an ice maker machine.
References
Bellis, M. (2014). The History of the Refrigerator and Freezers. Retrieved from About.com: http://inventors.about.com/library/inventors/blrefrigerator.htm
Focusun Technology. (2014). Direct refrigeration block ice machine. Retrieved from howstuffworks.com/search.php?terms=ice+maker+machine&x=0&y=0: http://www.chinaicemachine.com/block-ice-machine/direct/
Woolrich, W. R., & Clark, C. T. (2010, June 15). REFRIGERATION. Retrieved from Texas State Historical Association : http://www.tshaonline.org/handbook/online/articles/dqr01