78 resultados para Joseph Chen

em Brock University, Canada


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Mr. Joseph signed a professional contract with the Florida Marlins in 2003.

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This research was directed mainly towards the investigation of the reacti.ons of· substituted chlorobenziophenones under strongly basi,c conditions. The work 'can be divided into two main sections. The Introduction deals mainly with historical studies on aryne chemistry and the Haller-Bauer reaction. Secti.on I i.s concerned with syntheses of 2-benzamido-2'chlorobenzophenone and 2-benzamido~3'-chlorobenzophenone,and with thei,r respective reactions wi.th potassium amide in ammonia. o-Chlorophenylacetic acid was converted to the acid chloride and then by Friedel-Craftsreaction with benzene to w-(o-chlorophenyl)acetophenone. Reaction wi.th phenylhydrazine and Fischer cyclization gave 3- (0chlorophenyl)- 2-phenylindole, which was ozonized to 2-benzamido-2'chlorobenzophenone. The isomeric 3' -chlor,..o ke: tone was similarly synthesised from m-chlorophenylacetic acid. Both the 2'- and 3' -ch.loroketones gave N-benzoylacridone on treatment with potassium amide in ammonia; an aryne mechanism is involved for the 3'-chloroketone but aryne and nucleophilic substitution mechanisms are possible for the 2'-chloroketone. Hydrolysis of the 2'- and 3'-chloroketones gave 2-amino-2'chlorobenzophenone and 2-amino-3'-chlorobenzophenone respectively. A second new acridone synthesis is given in the Appendix involving reactions of these two ketones with potassium t-butoxide in t-butylbenzene. i Section 2 deals with the investigation of the reaction of some tricyclic ch1orobenzophenones with potassium amide in liquid ammonia. These were 1-ch1orof1uorenone; which was pr~pared in several steps from f1uoranthene, and 1- and 2-ch1oroanthraquinones. 1-Ch1orof1uorenone gave 1-aminof1uorenone ; 1-ch1oroanthraquinone gave 1- and 2-aminoanthraquinones; 2-ch1oroanthraquinone was largely recovered from the attempted reaction.

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Survey map and description of Joseph Burger's land created by The Welland Canal Company. Included is a written description of the land along with a drawing of the land. Noteable features include; line between Silverthorn and Burger's land, line between Burger and Shotwell's land. The land totals 15 acres, 1 road and 15 perches. Surveyor notes are seen in pencil on the map.

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Joseph Pope was born in Charlottetown, Prince Edward Island in 1854. He was the private secretary to Sir John A. Macdonald from 1882-1891. He worked as the assistant clerk to the Privy Council and undersecretary of state for Canada from 1896-1909. He was appointed a Companion of the Order of St. Michael and St. George in 1901. He was later knighted as a Knight Commander of the same order. Joseph Pope was the first permanent head of the Department of External Affairs (now Foreign Affairs and Internal Trade) 1909-1925. He was an advisor to Prime Ministers from Macdonald to King. He died in Ottawa, in 1926. As well as Confederation, Pope also penned: Memoirs of Sir John A. Macdonald : A Chronicle of the First Prime Minister of the Dominion; The Day of Sir John Macdonald; Jacques Cartier, his life and voyages; Traditions and Sir John A. MacDonald vindicated : a review of the Right Honourable Sir Richard Cartwright's reminiscences as well as other books Pope’s son, Maurice Arthur Pope wrote a book about Joseph entitled Public Servant: the Memoirs of Sir Joseph Pope”.

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Volume(density)-independent pair-potentials cannot describe metallic cohesion adequately as the presence of the free electron gas renders the total energy strongly dependent on the electron density. The embedded atom method (EAM) addresses this issue by replacing part of the total energy with an explicitly density-dependent term called the embedding function. Finnis and Sinclair proposed a model where the embedding function is taken to be proportional to the square root of the electron density. Models of this type are known as Finnis-Sinclair many body potentials. In this work we study a particular parametrization of the Finnis-Sinclair type potential, called the "Sutton-Chen" model, and a later version, called the "Quantum Sutton-Chen" model, to study the phonon spectra and the temperature variation thermodynamic properties of fcc metals. Both models give poor results for thermal expansion, which can be traced to rapid softening of transverse phonon frequencies with increasing lattice parameter. We identify the power law decay of the electron density with distance assumed by the model as the main cause of this behaviour and show that an exponentially decaying form of charge density improves the results significantly. Results for Sutton-Chen and our improved version of Sutton-Chen models are compared for four fcc metals: Cu, Ag, Au and Pt. The calculated properties are the phonon spectra, thermal expansion coefficient, isobaric heat capacity, adiabatic and isothermal bulk moduli, atomic root-mean-square displacement and Gr\"{u}neisen parameter. For the sake of comparison we have also considered two other models where the distance-dependence of the charge density is an exponential multiplied by polynomials. None of these models exhibits the instability against thermal expansion (premature melting) as shown by the Sutton-Chen model. We also present results obtained via pure pair potential models, in order to identify advantages and disadvantages of methods used to obtain the parameters of these potentials.

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Daguerreotype, 12 cm x 9 cm of Joseph Woodruff. The daguerreotype is slightly pitted and it is enclosed in a frame. This is accompanied by a note written by R. W. Band.

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A marriage certificate stating that Joseph Clement and Margaret Duffet were lawfully married according to the Church of England in Montreal, May 9, 1784. The name on the paper appears to be "Margaret Dusalle" and the date appears as "May 7th".

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Indenture between Joseph Hamilton of late of Queenston by his attorney Samuel Street to Jonathan Hart and Thomas Hart of Queenston for the sale of land in the township of Saltfleet, Lot no. 8 in the 6th Concession. There are holes in the document and the back is stained, but this does not affect the text, November 9, 1829.

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Indenture of sale between Joseph Hamilton of London and Joseph Hart of Montgomery County. This is regarding Lot no. 25 in the 5th concession in the Township of Norwich in the County of Oxford, May 11, 1833.

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Indenture (sheriff's deed) (vellum) between William Kingsmill, Sheriff of the District of Niagara to Joseph Hamilton regarding part of Lot no. 19 in the Township of Stamford, August 26, 1841.

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Indenture of bargain and sale between Joseph Jackson of Buffalo, New York and William Woodruff of St. Davids regarding Lot no. 90 in Niagara Township. This was registered in the County of Lincoln on April 30, 1842 in Book B, folio 299. The instrument no. is 732. It was written 17 March 1842.

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Indenture of bargain and sale between Joseph Jackson of Buffalo, New York and William Woodruff of St. Davids regarding Lot no. 90 in St. Davids. This was registered in the County of Lincoln on April 30, 1842 in book B, folio 300. The instrument no. is 733. It was written 17 march 1842.

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Indenture between Enoch Durham of Stamford Township and Joseph Smith of Stamford Township regarding a lease in Lot 130 in Stamford Township. April 1, 1842.

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Indenture of mortgage between Joseph Augustus Woodruff of the town of Niagara and Thomas Sheppard Smyth of Stamford Township regarding Lot no.4 in the 3rd Concession of Dereham - instrument no. 2803, September 2, 1850.

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Indenture between Harmonius Vanalstine of Thorold Township and Joseph Upper of Thorold Township regarding 98 acres in Lot no. 7 in the 1st Concession in the Township of Crowland - instrument no. 3469. This was listed in book A, folio 88, 89. September 11, 1851.