10,563 research outputs found
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Letter from Thomas R. Bodine, American Friends Service Committee Seattle office, to Mary M. Kimber, May 25, 1942
No full textLetter from Thomas R. Bodine to Mary M. Kimber, asking Kimber to visit individuals from the Puget Sound area incarcerated at Pinedale Assembly Center: Rev. Daisuke Kitigawa, Waichi Oyanagi, Chisako Higuchi, Mutsuo Hasiguchi and Mrs. Matsuoka, Makato Kobukata, the Hirabayashi family, and Violet Yokoyama. A note in pencil at the top of the page: "Burcham." A response letter from Grace and Calvin Coke to Thomas R. Bodine is found in item: chs_ms840_0306.Personal correspondence, organizational records, government documents, publications, and other papers created or collected by Joseph R. Goodman documenting the forced removal and incarceration of Japanese Americans during World War II, as well as organized resistance to incarceration. Included in the collection are records of the Japanese Young Men's Christian Association and the Japanese American Citizens' League in San Francisco, including papers of the Japanese YMCA's executive secretary Lincoln Kanai; Sakai family papers; Goodman's correspondence to and from Japanese American incarcerees, organizations opposing forced removal and incarceration of Japanese Americans, the War Relocation Authority, and others; publications, photographs, and ephemera from the Topaz Relocation Center, where Goodman taught high school; War Relocation Authority records and publications; and newspaper clippings, pamphlets, and reports about forced removal and incarceration created by various government, religious, and civic organizations, in California and nationwide
Analysis of rheological behaviour of titanium feedstocks formulated with a water-soluble binder system for powder injection moulding
No full textBinder selection and formulation are critical in powder injection moulding. Binders play a key role in controlling the rheological properties of a feedstock and influence whether the resulting feedstock can be successfully injection moulded, debound and sintered without defects. A four-step process was used to mix hydride-dehydride titanium alloy (processed) powder (Ti-6Al-4 V) with a polyethylene glycol (PEG) based water soluble binder system. The rheological properties, including flow behaviour index, flow activation energy, fluidity and melt flow index of the homogeneous feedstock, were determined with a capillary rheometer. All feedstock formulations exhibited shear thinning flow behaviour. The optimum feedstock consisting of 60 vol.% powder content, 32 vol.% PEG, 6 vol.% polyvinyl butyryl and 2 vol.% stearic acid was suitable for titanium injection moulding
Failed Censures: Ecclesiastical Regulation of Women’s Clothing in Late Medieval Italy
No full textChurchmen in the late thirteenth and early fourteenth centuries tried to regulate the costume of Italian women. These efforts failed, and regulation was largely left thereafter to civic authorities.The published version was published as Chapter 3 in Medieval Clothing and Textiles 5Izbicki, Thomas M. (2009), "Failed Censures: Ecclesiastical Regulation of Women’s Clothing in Late Medieval Italy" in Netherton, Robin and Owen-Crocker, Gale R., eds., Medieval Clothing and Textiles 5 (Boydell Press), 37-53ISBN: 9781843834519 (published book)Peer reviewe
Forbidden Colors in the Regulation of Clerical Dress from the Fourth Lateran Council (1215) to the Time of Nicholas of Cusa (d. 1464)
No full textMedieval canon law attempted to distinguish clergy from the laity by restricting their dress choices. The article focuses on prohibition of wearing red or green on the street. Both colors were identified with the nobility.The published version was published as Chapter 7 in Medieval Clothing and Textiles 1Izbicki, Thomas M. (2005), "Forbidden Colors in the Regulation of Clerical Dress from the Fourth Lateran Council (1215) to the Time of Nicholas of Cusa (d. 1464)" in Netherton, Robin and Owen-Crocker, Gale R., eds., Medieval Clothing and Textiles 1 (Boydell Press),105-114ISBN: 9781843831235 (published book
The Formulation of Titanium - based Metal Feedstocks and the Fabrication of Parts using the Powder Injection Moulding Process
No full textDevelopment of a profitable titanium industry for New Zealand will not come about without innovative technologies. Plastic injection moulding has long held a place in NZ manufacturing to produce large quantities of complex parts and holds the key to such innovation.
Titanium metal parts were fabricated by injection moulding titanium based metal powder feedstock followed by a debinding process and subsequent sintering. The fabrication process in its entirety was investigated in four distinct steps. Feedstock formulation involved combining the metal powders with various carrier components. Injection moulding enabled the shaping of the feedstock into geometries approximating the final part. Debinding being the process whereby the carrier/binder system is removed from the part to create a powder compact retaining the required geometry. Sintering being the final step where the metal powders are consolidated into a fully dense metal part of net shape.
The feedstock binder consisted of water soluble polyethylene glycol that reduced feedstock viscosity, improved particle wetting, aided greenpart shape retention and eliminated toxic solvents in debinding. Carnauba wax and bees wax aided dispersion, lubricated particles, were safe to handle and better for the environment (than petroleum waxes). Their low melt temperatures aided removal during thermal debinding and supported residue elimination.
By optimising the ratio of water soluble, wax and polyolefin binder components (3: 2: 1 respectively) for melt flow and pellet formation, greenparts defect free with uniform particle distribution were made. The optimal binder system proved suitable for titanium alloy and irregular shape pure titanium powders (hydride-de-hydride). Increasing powder loading (wP = (0.60 to 0.65)) had no appreciable effect on viscosity while enabling feedstock with good uniformity and pellet formation. Dimensional change was not affected by uniformity of the feedstock however molecular weight, volume and dispersion of binder components affected interparticular distances. Low processing temperatures reduced disruption to part geometry, benefitted particle bonding and helped retain handling strength.
The use of low temperatures for thermal debinding (t = 250 °C) enabled removal of the binder below the temperatures that facilitate interstitial diffusion and oxide/carbide formation, although part thickness, mass and overall volume effected the processing time. A strong correlation was seen between handling strength of the greenparts and defects, such as non-uniform density distribution and cracking after sintering.
Sintering was essential to produce the final part and showed that a binder free brownpart was not the only criteria for eliminating impurities. The furnace atmosphere must remain free from contamination to eliminate transfer back to the parts. This was addressed using an argon sweep gas, however, the design and efficacy of the system was considered inadequate. Decomposition products need to be removed quickly from the furnace as they evolve before impurities from the sweep gas diffuse back into the parts during the extended duration at sinter temperatures (t = 1300 °C).
The combination of an optimised titanium feedstock and the use of a low temperature thermal debinding technique produced a consolidated MIM part of relatively large dimensions. The parts were seen to have uniform microstructure throughout the cross-section with density comparable to that of MIM standards. In difference to the literature, a high powder loading (φp = 0.65) of HDH powders was used and shown to be readily mouldable. The higher powder loading also eliminate separation defects and shape distortions evident using lower amounts of powder
Author Profile: Thomas Ward
No full text"I can never resist fresh sushi with a cup of green tea. My greatest achievement has been our three wonderful kids. …" This and more about Thomas Ward can be found on page 4722
The Gospel of Thomas and the earliest texts of the synoptic gospels
No full textResearch on the Gospel of Thomas in the last quarter of a
century has made it clear that the origins of this apocryphal gospel
cannot
be
satisfactorily explained from a single point of view. The
author thus suggests that Thomas
be
understood as a growing collection
of sayings which originated in various places and languages, with some
logia being added to the collection after its inception. While this
suggestion is by no means new, there have been few extensive attempts
to study Thomas from such a presupposition.
Due to the need for a control group, only the logia which have
rather close parallels to the Synoptic gospels are investigated. Verbal and textual affinities are noted between these logia and the earliest texts of the Gospels (the Coptic versions, the Diatessaron, the
Old Syriac version, and other early versions and Christian writings).
Various degrees of probable contact between each logion and these
texts are assigned.
The results of this study give some idea as to the place of
origin, the original language, and the approximate date at which certain logia were added to the collection. Those sayings which show a
closer affinity to the Diatessaron, the Old Syriac version, or other
Syrian writings may
be
considered as having been added to the sayings
collection as it circulated in its earliest form, possibly in a Semitic language. Other logia which show no signs of awareness of a
Syrian reading, but which are similar to variants found in the Coptic
versions or other Egyptian texts, may well have originated in Egypt
and been added to the collection at a later stage. These results,
however, must await verification by those who might approach Thomas
from related, but different, perspectives
Letter from Thomas R. Bodine, Associate Director, National Student Relocation Council, West Coast Committee, November 11, 1942
No full textLetter from Thomas R. Bodine addressed to Friends of Student Relocation, regarding progress made towards assisting Japanese American students on the west coast relocate to colleges and universities on in the east.Personal correspondence, organizational records, government documents, publications, and other papers created or collected by Joseph R. Goodman documenting the forced removal and incarceration of Japanese Americans during World War II, as well as organized resistance to incarceration. Included in the collection are records of the Japanese Young Men's Christian Association and the Japanese American Citizens' League in San Francisco, including papers of the Japanese YMCA's executive secretary Lincoln Kanai; Sakai family papers; Goodman's correspondence to and from Japanese American incarcerees, organizations opposing forced removal and incarceration of Japanese Americans, the War Relocation Authority, and others; publications, photographs, and ephemera from the Topaz Relocation Center, where Goodman taught high school; War Relocation Authority records and publications; and newspaper clippings, pamphlets, and reports about forced removal and incarceration created by various government, religious, and civic organizations, in California and nationwide
Thomas Paine: Author of American Independence
No full textMy paper will argue that for his efforts and writings in 1776, Thomas Paine should be considered one of the primary author of American Independence. It will illustrate how the writings of Thomas Paine helped propel America towards Revolution and independence. In an age where monarchs held power, Paine believed that the authority should lie in the hands of the people. Looking at the opinions of politicians in the Continental Congress, common colonial-Americans, as well as colonial representatives, it will illustrate that there was a deep connection with the King up until January 1776. Colonial-Americans would not have dared to defy the King, and instead, wanted reconciliation instead of revolution, even after the fighting broke out. After illustrating colonial-America?s desire for resolution, it will look at Thomas Paine?s Common Sense, and examine the ideals in his pamphlet, and how they pushed the country toward independence. Further, the paper will explore the notion that Thomas Paine influenced the writing the Declaration of Independence, looking primarily at the slavery clause that Thomas Jefferson omitted from the final copy. Finally, the paper will explore the impact Paine's American Crisis had on soldiers and citizens during the war, and how his pamphlet reignited the desire for American IndependenceSUNY BrockportHistorySenior Honors These
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