Seakeeping ability or seaworthiness is a measure of how well-suited a watercraft is to conditions when underway. A ship or boat which has good seakeeping ability is said to be seaworthy and is able to operate even in high sea states. In 1976, St. Denis suggested four principal terms needed to describe a seakeeping performance; these are: Mission:. The role of the ship while at sea. Environment: the conditions under which the ship is operating; this can be described as wind speed, geographic region or some combination thereof. Ship responses: the response of the ship to the environmental conditions; the responses are a function of the vessel characteristics. Seakeeping performance criteria: the established limits for the ship's responses; these are based on the ship motions and the accelerations experienced, include comfort criteria such as noise and sea sickness, performance based values such as involuntary speed reduction, observable phenomena such as bow immersion. A drillship and a ferry have different missions and operate in different environments.
The performance criteria will be different as well. Both may be considered seaworthy. In ship design it is important to pre-determine the behavior of the ship or floating structure when it is subjected to waves; this can be calculated, found through physical model testing and measured on board the vessel. Calculations can be performed analytically for simple shapes like rectangular barges, but need to be calculated by computer for any realistic shaped ship; the results of some of these calculations or model tests are transfer functions called Response Amplitude Operators. For a floating structure they will need to be calculated for all six motions and for all relative wave headings. Ship motions are important for determining dynamic loading on the crew, ship system components, secured cargo, structural elements. Excessive ship motions may hinder the vessel's ability to complete its mission such as the deployment and recovery of small boats or aircraft. A measure of an individual's ability to complete a specific task while on board a moving ship is the Motion Induced Interruptions.
It gives an indication of the number of events in which a standing person will look for support in order to maintain balance. MII is measured in occurrences per hour. Ship motions have physiological effects on crew; the magnitudes and accelerations of ship motions, have adverse effects on passengers and shipboard personnel. Sea sickness will have negative effects on the ability of crew to accomplish tasks and maintain alertness and will distress passengers. An important metric in evaluating sea sickness is the Motion Sickness Incidence; the most important study on MSI was published in Aerospace Medicine by O'Hanlon and McCauley in 1974, which established common subjective thresholds of MSI tolerance. MSI is measured in percentage of people who experience sea sickness during a given amount of exposure time. A accepted limit of MSI is 20% occurrence of sea sickness over a four-hour exposure period. A small percentage of people are susceptible to sea sickness and become ill in the slightest conditions, while other people get sea sick despite severe conditions.
It has been shown that most people acclimate to ship motions within a period of about four days, but some never acclimate at all. Seakeeping directly impacts the design of a vessel. Ship motions are considered when determining the principal dimensions of the ship and in developing the general arrangements of the ship's internal spaces. For example, in most vessels the far forward parts of the ship experience the worst ship motions and are unacceptable for berthing passengers or crew. In exceptional cases where ship motions pose a threat to crew, structure or machinery, or when ship motions interfere with the ability of the ship to accomplish its mission the design must be modified so that ship motions are reduced. A number of factors affect seakeeping or how the ship responds. Size: A larger ship will have lower motions than a smaller one; this is. Displacement: A heavier ship will have lower motions than a lighter one. Given that the wave energy is the same for each vessel and provides the exciting force, the one with the greater mass will have the lower accelerations.
Stability: A stable ship will tend to follow the wave profile more than a less stable one. This means that a more stable ship will have higher accelerations but lower amplitudes of motion. Freeboard: The greater a vessel's freeboard the less it is to immerse the deck. Deck immersion is a seakeeping criterion, as it affects mission capability in a number of ships. Human factor: Often the most critical factors in seakeeping in small vessels, are the experience and skills of the crew in extreme situations. Allied to these are avoiding seasickness, getting sufficient sleep and drink and staying injury-free for the duration of an extreme event. Hull – Watertight buoyant body of a ship or boat Seaworthiness Ship motions – Terms connected to the 6 degrees of freedom of motion Turtling Airworthiness Crashworthiness Cyberworthiness Railworthiness Roadworthiness Spaceworthiness Brown, David K.. "Seaworthy by Design". Warship International. XXV: 341–352. ISSN 0043-0374. C. A. Marchaj. Seaworthiness: The Forgotten Factor.
ISBN 1-888671-09-2. A R J M Lloyd. Seakeeping: Ship Behaviour in Rough Weather. Amazon. ISBN 0-9532634-0-1
Arturo Moyers Villena was a Mexican muralist and painter, whose work was influenced by David Alfaro Siqueiros. Many of his mural works are exhibited in cultural institutions. Arturo Moyers was born in Los Mochis, Sinaloa, on January 2, 1938. At age 16, he entered the Academy of San Carlos in Mexico City. Moyers went back to his native town in 1957 to work with Master Erasto Cortés Juárez at the Fine Arts Workshop of the Autonomous University of Sinaloa. There he principally did stage sets for the University Theater Group of Sinaloa, he managed the workshop until 1969, when political repression forced him to leave Sinaloa due to his left-wing ideology. He moved back to Mexico City, in that same year, Mario Orozco Rivera introduced him to David Alfaro Siqueiros. Moyers worked with Alfaro Siqueiros on the project of the Polyforum Cultural Siqueiros, though he was part of this project only on its final stage, he would be influenced by the artist during the rest of his life. Moyers remained under Siqueiros's guidance at La Tallera, until he died on 1974.
In 1985 Moyers settled in the State of Hidalgo, governor Guillermo Rossell de la Lama invited him to paint the walls of the Government Palace of Hidalgo. In 1997, he painted his first mural outside of Mexican territory, in Texas; the following year he had another international experience by working for the Eternal Heritage Museum, in Puttaparthi, India. He was part of the Celebration of Mexican political anniversaries in 2010, by painting a mural on the Government Palace in Culiacán. Arturo Moyers received the Artistic Award of Sinaloa in 2010. Moyers Villena died at age 75. Local media in Hidalgo stated the"Loss of an adoptive son". Moyers Villena was a student and apprentice to David Alfaro Siqueiros, his artistic work shows a strong influence from him, he focused on muralism, but did numerous paintings. Most of the topics on his art were the social concerns from the first half of the 20th century, he stated his desire to make art of the people and for the people, highlighting the need for social transformation through revolutionary actions
Calamagrostis bolanderi is a species of grass known by the common name Bolander's reedgrass. It is endemic to northern California, where it grows in moist coastal habitat such as temperate coniferous forest, wet meadows and bogs, coastal scrub; this is a perennial grass growing to heights between 0.5 and 1.5 meters, each erect stem with four nodes. It has flat leaves and open, spreading inflorescences of small spikelets; each spikelet is made up of one floret surrounded by a v-shaped pair of smooth bracts. Jepson Manual Treatment USDA Plants Profile Photo gallery
Frank Forrest Buck was a Tennessee politician and a member of the Tennessee House of Representatives for the 40th district, composed of DeKalb and Macon counties. He was the son of Georgia Baird Buck, he has John William Buck. His father, started out as a sharecropper and owned over 500 acres of land in Wilson and Trousdale counties. Neither of his parents completed the eighth grade, as they dropped out of school to work in the Great Depression, his father was stricken with polio. His father spent many months at Vanderbilt Medical Center recovering in the black lung, but never walked again, he served as a member of the House for thirty-six years. He was re-elected as a member of the Democratic Party. Buck was Vice-Chair of the House Transportation Committee and the Chair of the House Public Transportation and Highways Subcommittee, he served as Chair of the House Judiciary Committee, a member of the House Judicial Administration Subcommittee, the House Criminal Practice and Procedure Subcommittee.
Buck graduated with a Bachelor of Science degree in business administration from Tennessee Technological University and graduated with a J. D. from University of Tennessee Law School. He works as a farmer and as an attorney, owning a law practice with his wife, Lena Ann Graves Buck an attorney, called Buck & Buck Attorneys at Law near Smithville, he and Lena have 4 daughters, Melinda and Jennifer. In 1990, Frank Buck narrowly lost to Bill Purcell in a bid for the position of House majority leader. Buck is known for efforts on ethics reform, with a long and lengthy record of supporting and passing ethics reform in his thirty-six year long legislative career, he exposed a whiskey-for-votes racket operating in DeKalb County and helped to bring reform as a member of the DeKalb County Ethics Commission. In 1994, he took issue with the expense of different execution methods reported by Department of Correction officials that placed a firing-squad execution at $7,000, he passed legislation that resulted in the highway logo advertising seen on Tennessee highways.
He was most proud of enacting the "Lemonade Stand Bill" which prevented the Tennessee Department of Health from requiring certificates of health from lemonade stands. In 1993 and 1994, Buck introduced legislation that would have restrained lobbyists from giving gifts and paying travel expenses of members of the General Assembly, forced more disclosure of such acts. In 1994, he sponsored a bill introduced by former Sen. Carol Rice that became known as the "cup-of-coffee" bill, which would have prevented legislators from taking so much as a cup of coffee from lobbyists. A version of it was passed in 1995—without Buck as a sponsor—with a loophole that allowed legislators to receive free meals and drinks if another legislator is invited, he has received numerous awards from groups for his work on ethics reform including one from Common Cause for the Cup of Coffee bill. In February 2008, Buck announced he would not run for re-election and would retire when his current term expired. Election results for the 2004 state House elections 2008 Election results following Buck's retirement from politics
The Daily Graphic is a Ghanaian state-owned daily newspaper published in Accra, Ghana. The paper was established along with the Sunday Mirror in 1950, by Cecil King of the London Daily Mirror Group. With a circulation of 100,000 copies, the Graphic is the most read daily newspaper in the country; the paper has seen many editors replaced over the course of its history post-independence, after a string of successive military coups that resulted in the sacking editors who opposed the government policies. In 1979 the newspaper was renamed the People's Daily Graphic under Jerry Rawlings for a few years to "remind the people that it belongs to them". One journalist in particular, Fredrick Botchway, so gifted in his work had excelled at the paper and was swiftly promoted to Chief Editor in the mid 1950s. Being a state-owned paper, it covers the government in a favourable light and encouraging national unity and government policy. In colonial Ghana under British rule, the paper, staffed by local Ghanaians, received large government funding from British banks, which led to its high circulation and raising awareness of events to ordinary Ghanaians, more so than Ghanaian-owned papers.
The paper, owned by the Graphic Communication Group Limited prints two weekly entertainment newspapers, namely The Mirror and Graphic Showbiz. Graphic Sports, the most read sports news in Ghana, is a product of the company; the company publishes the Junior Graphic, aimed at a younger audience, the Graphic Business, a business and financial paper, the Graphic Advertiser, a free ads paper, the Nsɛmpa, a regional weekly for the Ashanti Region. Ghana's other state-owned paper is the Ghanaian Times. Graphic Nsempa was discontinued and the company re-launched its News Website Graphic Online in 2012 and it is among the top five news websites in the country according to Alexa. Media of Ghana List of newspapers in Ghana Official site
Jim McCarthy is a British comics creator. He became well known for working on Bad Company in 2000 AD before going on to write a number of graphic novels based on musicians, as well as becoming a music journalist, he is the brother of Brendan McCarthy. Jim McCarthy studied art at Ealing College, leaving in 1975 and working as an artist in Europe for three years. Travelling to Germany, Belgium, Sweden and various parts of the UK. Jim produced cartoons for industry practices for a period of over three years, he started at 2000 AD in 1977 and 1978 on Tharg's Future Shocks, sharing art duties with Brett Ewins, a partnership that would continue on his return in 1986 for their long run on Bad Company with Peter Milligan. He would work solo with Milligan, again, on their occult detective series Bix Barton, McCarthy would work at 2000 AD throughout this period until 1996 returning in 2001 and 2002 to draw more Future Shocks. McCarthy would return to comics full-time in 2003 writing the first of a number of biographical graphic novels, including Godspeed: The Kurt Cobain Graphic, re-released in digest form in 2011, Sex Pistols: The Graphic Novel.
The NME reported that the former "had proved both commercially successful. Beaumont received death threats from irate fans before Godspeed was published", he writes about music, his first piece was about Jah Wobble whom he met when they were both in rehab, he has since gone on to write a book on Latin rock. In 2004 he wrote The Voices Of Latin Rock, a book dealing with the Mission District in San Francisco, the fusion of Latin and rock for over 30 years. I have authored numerous graphic novels and created comic graphic artwork being published in both the US and UK markets. Subsequently, my work has been translated and published in Russia, Spain, Italy, France, Germany and Japan. Tharg's Future Shocks: "Robot Repairs" "Stasis" "Casualty" "Cultural Exchange" "The Birthday" "Headhunter" "His Master's Voice" Bad Company: Goodbye, Krool World collects: "Bad Company" "The Bewilderness" "The Krool Heart" Judge Dredd Megazine vol. 4 No. 15 reprints: "Young Men Marching" "Ararat" Kano collects: "Kano" "Down Among the Dead Men" "Bad Company 2002" Hellblazer No. 7 "The Geek" Zenith: "Mandala: Shadows & Reflections" Bix Barton: "Barton's Beasts" "The Indigestible Case of the Haunted Full English" "The Disproportionate Man" "Carry On Barton" "Lovesick World" "Bloated Case of the Fatted Keef" "The Mouth Thief" "The Crying Scotsman" "Nigel the Napoleon of East Finchley" Animal Man No. 44 Rogue Trooper The Grudge-Father: "The Grudgefather" "Skin Games" Kid Cyborg Graphic novels Godspeed: The Kurt Cobain Graphic Eminem: In My Skin Death Rap: Tupac Shakur – A Life Bad Company: Goodbye Krool World.
Rebellion. 2007. Bad Company: Kano: Rebellion. 2007. Sex Pistols: The Graphic Novel The Complete Bad Company: Rebellion. 2011. Neverland: The Life and Death of Michael Jackson Omnibus Press. 2012]') Sex Pistols: The Graphic Novel, Manga edition. 2012.'Godspeed: The Kurt Cobain Graphic, Manga Edition: Omnibus Press. 2012. Gabba Gabba Hey: The Ramones Graphic Novel. Omnibus Press. 2013. Metallica: Nothing Else Matters. Omnibus Press. 2014. Reckless Life: Guns And Roses. Omnibus Press. 2015. Living For Kicks. Omnibus Press. 2016. Who Are You? The Keith Moon Graphic. 2016. First Casualties. 2016. Wake Up And Live: The Bob Marley Graphic. 2017. Bad Company -The Ultimate Collection. Volume One Rebellion. 2018. Bad Company - The Ultimate Collection. Volume Two Rebellion