Question: Who lived a longer life Hampar Kelikian or Arthur T. Gregorian?

Context paragraphs:
Quintus Corellius Rufus: Quintus Corellius Rufus was a Roman senator who flourished during the second half of the first century; he was suffect consul for the "nundinium" of September-October 78 with Lucius Funisulanus Vettonianus as his colleague.  Rufus best known as a mentor to Pliny the Younger.  In several letters Pliny writes warmly of Rufus, noting that he often sought his advice, recounting in one that on his deathbed Rufus told his daughter, "Through the benefit of a longer life I have gained many friends for you, but above all Secundus [Pliny the Younger] and Cornutus."

Reaction Engines Scimitar: The Reaction Engines Scimitar is a derivative of the SABRE engine technology, but intended for jet airliners (the Reaction Engines A2 concept), rather than space launch applications.  Consequently, most of the Scimitar engine technology is similar to SABRE but designed for much longer life.  Both engines are designed around existing gas turbine, and ramjet technology, but the Scimitar engine lacks the rocket features and has high bypass features for greater efficiency.  The engines burn liquid hydrogen as fuel.

Arthur T. Gregorian: Arthur T. Gregorian, (1909 – January 14, 2003), was a Greater Boston oriental rug dealer and author of books on oriental rugs, and considered to be the world's leading collector of rare, inscribed Armenian rugs.

Fiat 124 series engine: Designed by Aurelio Lampredi, the Fiat 124 engine first appeared in the all-new Fiat 124 in April 1966.  The in-line four-cylinder engine comprised an iron block with an aluminium cylinder-head with pushrod actuated valves.  The belt-driven design was ahead of its time when introduced.  The engine remained in production until the 1990s in Latin America, although European production ended with the Fiat 131 in 1984.  It did have a longer life in its twin-cam iteration, which continued in production until 2000.  While originally of an overhead valve design, an overhead cam version was developed for Fiat's Brazilian arm in 1976 and in 1981 it was added to the facelifted 131 in Europe as well.  The capacity was initially 1,197 cc (in the Fiat 124), but eventually ranged between 994 cc and 1,585 cc.  There was also a 1.3-litre diesel iteration, only built in Brazil but exported to Europe as well.  The last versions of this engine to be built was the 1.5L dedicated-ethanol developed in Brasil that served the Fiat Uno and its derivatives, and lately the Fiat Palio (both the hatch and the Weekend), Siena and Strada, until 2004.

Africa Fighting Malaria: Africa Fighting Malaria (AFM) is an NGO based in Washington D.C., United States and South Africa which states it "seeks to educate people about the scourge of Malaria and the political economy of malaria control".  The organization generally "promotes market based solutions and economic freedom as the best ways to ensure improved welfare and longer life expectancy in poor countries", according to their financial statement.  Founded in 2000 during the Stockholm Negotiations on Persistent Organic Pollutants, AFM's original focus was the promotion of a public health exemption for the insecticide DDT for malaria control.  According to their current website, their mission is to "make malaria control more transparent, responsive and effective by holding public institutions accountable for funding and implementing effective, integrated and country-driven malaria control policies."

Tank blanketing: Tank blanketing, also referred to as tank padding, is the process of applying a gas to the empty space in a storage container.  The term storage container here refers to any container that is used to store products, regardless of its size.  Though tank blanketing is used for a variety of reasons, it typically involves using a buffer gas to protect products inside the storage container.  A few of the benefits of blanketing include a longer life of the product in the container, reduced hazards, and longer equipment life cycles.

Hampar Kelikian: Hampar Kelikian (January 17, 1899 – July 24, 1983) was a maverick orthopedic surgeon, who significantly extended the surgical field.

Thermoplastic elastomer: Thermoplastic elastomers (TPE), sometimes referred to as thermoplastic rubbers, are a class of copolymers or a physical mix of polymers (usually a plastic and a rubber) which consist of materials with both thermoplastic and elastomeric properties.  While most elastomers are thermosets, thermoplastics are in contrast relatively easy to use in manufacturing, for example, by injection molding.  Thermoplastic elastomers show advantages typical of both rubbery materials and plastic materials.  The benefit of using thermoplastic elastomers is the ability to stretch to moderate elongations and return to its near original shape creating a longer life and better physical range than other materials.  The principal difference between thermoset elastomers and thermoplastic elastomers is the type of cross-linking bond in their structures.  In fact, crosslinking is a critical structural factor which imparts high elastic properties.

Florbetapir (18F): Florbetapir (F) (trade name AMYViD; also known as florbetapir-fluorine-18 or F-AV-45) is a PET scanning radiopharmaceutical compound containing the radionuclide fluorine-18, recently FDA approved as a diagnostic tool for Alzheimer's disease.  Florbetapir, like Pittsburgh compound B (PiB), binds to beta-amyloid, however fluorine-18 has a half-life of 109.75 minutes, in contrast to PiB's radioactive half life of 20 minutes.  Wong "et al." found that the longer life allowed the tracer to accumulate significantly more in the brains of people with AD, particularly in the regions known to be associated with beta-amyloid deposits.

Wincenty of Kielcza: Wincenty of Kielce (c. 1200 – after 1262) was a Polish canon in Cracow, a poet writing in Latin, composer, member of the Dominican Order.  He was born probably in the Town of Kielce.  He is best known for his hymn "Gaude mater Polonia".  Wincenty also wrote a shorter and a longer life of Saint Stanislaus of Szczepanów for his canonization.

Supporting paragraphs: Hampar Kelikian Arthur T. Gregorian
Answer: Arthur T. Gregorian