Article reprinted from The Harvard Business Review discussing the principal systems of inventory replenishment and production scheduling.

Present-day knowledge concerning the molecular structure of supercritical fluids is briefly reviewed. It is shown that liquid-like and gas-like phases may coexist at supercritical pressures, although they may not be in equllibrium with each other. it is postulated that on the basis of the coexistence of these two phases a "boiling-like" phenomenon may provide the mechanism of heat transfer to supercritical fluids at high heat fluxes and certain other conditions. An unusual mode of heat transfer was actually observed at supercritical pressures during tests which produced the high heat fluxes and other conditions under which such "boiling" would be expected. The tests and the various conditions are briefly described. An emission of high-frequeney, high-intensity sounds usually accompanied these tests. It is shown that similar screaming sounds were heard during boiling at subcritical pressures, giving further support to the hypothesis that "boiling" may occur at supercritical pressures. A seeond possible explanation for the unusual mode of heat transfer is based on boundarylayer stability considerations. At high heat fluxes large density differences exist between the bulk of the fluid and the fluid in the boundary layer near the wall. A breakdown of the boundary layer may be caused by the build-up of …

Procedures are described for both a titrimetric and a gravimetric determination of hafnium in aluminum -hafnium alloys. The gravimetric procedure is used if the hafnium is to be recovered; otherwise, the titrimetric procedure is preferred. The sample is dissolved in aqua regia. Any undissolved hafnium is taken into solution via pyrosulfate fusion. The hafnium is separated from the aluminum and contaminants in the aluminum by precipitation as the mandelate. In the gravimetric procedure the hafnium mandelate is heated to the oxide, then weighed. In the titrimetric procedure the mandelate is destroyed with nitric, sulfuric, and perchloric acids. The hafuium then is determined by adding a measured excess of EDTA and back titrating the excess EDTA with a standard bismuth solution to a xylenol orange end point. (auth)

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A brief review of fast electronics is given, leading up to the present state of the art. Cherenkov counters in high-energy physics are discussed, including an example of a velocity-selecting Cherenkov counter. An electronic device to aid in aligning external beams from high-energy accelerators is described. A scintillation-counter matrix to identify bubble chamber tracks is discussed. Some remarks on the future development of electronics in high-energy physics experiments are included.

It will be desirable to have a general purpose bending magnet available for use with the Bevatron. The design discussed, while tentative, is believed to incorporate most of the desired properties for use with the external beam.

This report describes the design and testing of a 1.17-Bev/c separated K{sup -} beam designed in the fall of 1958 in connection with a 15-in. hydrogen bubble chamber experiment. At the target the K{sup -}/{pi}{sup -} ratio was 1/140. At the chamber, 4.0 K{sup -}-meson decay lengths from the target, and after two stages of electromagnetic separation, the K{sup -}/{pi}{sup -} ratio was 12.5, corresponding to a total pion suppression by a factor of about 10{sup 5}. The K{sup -} flux at the chamber was 0.87 K{sup -} mesons per 10{sup 10} protons impinging on the target.

This report describes the design and testing of a 1.17-Bev/c separated K{sup -} beam designed in the fall of 1958 in connection with a 15-in. hydrogen bubble chamber experiment. At the target the K{sup -}/{pi}{sup -} ratio was 1/140. At the chamber, after two stages of electromagnetic separation and 4.0 K{sup -}-meson decay lengths, the K{sup -}/{pi}{sup -} ratio was 12.5, corresponding to a total pion suppression by a factor of about 10{sup 5}. The K flux at the chamber was 0.87 K{sup -} per 10 protons on the target.

Article pays tribute to William Bennet Bizzell, superintendent of schools and later president of Agricultural and Mechanical College of Texas and the University of Oklahoma. Morris L. Wardell explores the importance Bizzell placed on the value of books and his contribution to the growth of academic libraries.

Article introduces a series of letters by Cassandra Sawyer Lockwood about her journey into the Cherokee Nation and her life at Dwight Mission, where she lived and worked with her husband, Jesse Lockwood. Joseph B. Thoburn provides historical context to the group of Western Cherokees they worked with and to the personal account written by Mrs. Lockwood.

Article describes the lives and works of three white artists who came to Oklahoma in the nineteenth century: George Catlin, John Mix Stanley, and Heinrich Baldwin Mollhausen. O. B. Jacobson and Jeanne d'Ueel discuss how the artists recorded images of Indian Territory and why they did so.

Article provides an introduction to and includes an account by geologist George W. Featherstonhaugh of the early status of the Cherokee Nation. Featherstonhaugh highlights the written version of their language devised by Sequoyah, their plight in the face of the westward push of white settlement, the ways they adapted British technologies and agricultural techniques, and government relations.

Article discusses the history of Webber Falls and the early inhabitants of that region of Indian Territory on the Arkansas River. Carolyn Thomas Foreman highlights the life of the Cherokee Walter Webber, for whom the falls were named, and investigates early documentation of the area.

Article provides historical background for the work of Miss Sophia Sawyer, who began a female seminary for both Cherokee and white students in the Cherokee Nation and also worked at several different missions. Carolyn Thomas Foreman examines her life and accomplishments through correspondence and newspaper reports.

Article illustrates the history of North Fork Town, its settlement by the Creeks, the religious denominations that took root there, and the schools that were eventually built in the area. Carolyn Thomas Foreman discusses the missionaries that helped found these schools and the growth of the town.

Article describes the establishment and history of the Hopefield Mission, a branch of Union Mission established by Reverend William B. Montgomery, William C. Requa, and his wife. Carloyn Thomas Foreman discusses the hardships faced at the mission while trying to provide agricultural training to the Osage people.

Article discusses the legacy of John Jumper, one of the principle chiefs of the Seminole Nation. Carolyn Thomas Foreman discusses his life and relations between the Creeks and the Seminoles during his time of leadership, treaties formed with the U.S. government, unrest during the Civil War, and the religious institutions established within the nation during the nineteenth century.

Article describes the life and work of S. Alice Callahan, author of Wynema Child of the Forest and teacher at the Harrell Institute in Muscogee, Indian Territory. Carolyn Thomas Foreman explores the contents of the book, its titular individual, and includes excerpts of Callahan's work.

Article describes a treaty the Cherokee Nation made with the U. S. government over a tract of land referred to as Wafford's Settlement. Carolyn Thomas Foreman explores the journey of recovering the treaty, which initially was lost and only found twenty years later after much correspondence between the Cherokees and high-ranking government officials.

Article discusses the history of Marshalltown, a town in the Creek Nation that was established in the early nineteenth century. Carolyn Thomas Foreman explores the crime that cropped up in the town, and the disputes that occurred between black Creeks and Cherokees.

Article highlights the history of the Jumper family of the Seminole Nation, beginning with Chief Micanopy, who was leader during the Seminole Wars. Caroline Thomas Foreman discusses the conflict between the U.S. Army and the Seminole Nation, the treaties made to secure peace, and Seminole resistance to the removal west.

Article describes the military career of Lieutenant General Theophilus Hunter Holmes, founder of Fort Holmes. Carolyn Thomas Foreman discusses his participation in the Seminole Wars, the Mexican-American War, and focuses particularly on his service in the Confederate Army during the Civil War.

Article describes the origin of the term "light-horse" and the appearance of mounted law enforcement in the tribes of North America. Carolyn Thomas Foreman discusses the "light-horsemen" of the Cherokee, Choctaw, and Muscogee (Creek) Nations.

Article describes the life and career of Joseph Absalom Scales, one of the civic leaders of the Cherokee Nation who acted as attorney, Major in the Confederate Army during the Civil War, and associate justice of the Supreme Court. Carolyn Thomas Foreman pieces together documentation from the nineteenth century to provide a portrait of the man.