Apparatus for tensile testing Patent

Apparatus for tensile strength testing of specimen by pressurized flui

Weld preparation tool for pipes and tubing

Improved scarfing tool consists of a mount-table, roller-guided assembly. It converts a conventional routing machine for relatively precise field preparation of pipes for welding

Observation of Single Transits in Supercooled Monatomic Liquids

A transit is the motion of a system from one many-particle potential energy valley to another. We report the observation of transits in molecular dynamics (MD) calculations of supercooled liquid argon and sodium. Each transit is a correlated simultaneous shift in the equilibrium positions of a small local group of particles, as revealed in the fluctuating graphs of the particle coordinates versus time. This is the first reported direct observation of transit motion in a monatomic liquid in thermal equilibrium. We found transits involving 2 to 11 particles, having mean shift in equilibrium position on the order of 0.4 R_1 in argon and 0.25 R_1 in sodium, where R_1 is the nearest neighbor distance. The time it takes for a transit to occur is approximately one mean vibrational period, confirming that transits are fast.Comment: 19 pages, 8 figure

Possible application of remote-sensing techniques and satellite communications for earthquake studies

Passive and active remote sensing techniques used with satellite communication for earthquake studie

The life and work of James Alexander Haldane

Never before in the past century has there been such an actlvo interost in evangelism, not only in the English speaking countries but on the Continent and in some sections of the Per bast. Over ton of the leading graduate schools of theology in the United States are in the process of establishing or enlarging t sir departments of evangelism. One item conspicuous by Its absence is the lack of material in the field of church history covering the subject of evangelism. These schools are handicapped at the very outset by a lack of research In this field.The following thesis is a study of the life and work of the one man who, above all others, led the way in establishing evangelism as a legitimate and necessary means of propagating the Gospel in Scotland. This work is neither an apology nor a vindication of this phase of church history. It Is the product of research - diversified occurrences and facts - presented in narrative form.The delineation of the material requires more than a critical spirit; it is Imperative that one possess a sympathetic understanding to see, in its proper perspective, the contribution of James Haldane to the improvement of the religious life of Scotland. The subject was marred by the defects caused by the talents of the times. Ho was dubbed narrow, purist, fanatic. We, however, would say after over a century has tried his works that he was a man of strong conviction, a Christian idealist, a man upon whom the spiritual destitution of the nation and the world lay heavy.His accomplished work was, and is his best vindication. He possessed no great outstanding talents or any special privileges but he was a man who believed that he had a. mission to fulfil in Scotland and a message for its people. He had a passion for souls; the sincerity of which can be measured by what he suffered and what he sacrificed for the sake of proclaiming the GospelJames HaIdane was the father of modern evangelism in Scotland and the greatest evangelist this country has produced. His deep insight into the motives and methods of evangelism placed him a century find a half in advance of his times, The methods which he set forth are more advanced and ore comprehensive In some respects than any system of evangelism in use today.One evangelical denomination in the United States has adopted three of his four basic principles which brought a weekly influx of over five thousand new converts for the past ten years and seven thousand a week for the year 1954 bringing the year's total to approximately four hundred thousand. The present research in this phase of church history Is designed to bring to light the amazing work of this outstanding man for the ultimate purpose of improving methods in use In modern day evangelism.The scarcity of original material makes his work en excellent subject of research. This sparseness Is attributed to the strength of the Moderate controlled Established Church In an age when any kind of evangelism was considered intellectual imbecility, Even such notable revivals as that under Stewart in the perish of Moulin did not appear on the Kirk Session Records.'No history of Christianity can ever do justice to facts, which shell ignore or pass lightly by the labours of the Haldane brothers and their coadjutors in originating that spiritual revival which took place at the opening of the nineteenth century.''The life work of the HaIdanes .... is sufficient to commend their history to the study of every Christian.

Improved poppet valve provides positive damageproof seal

Soft-seat poppet valve provides positive closure against fluid without damage to the seating surface on repeated cycling. It incorporates two compressible soft rings and a retaining ring of hard metal. Sealing is effected when the poppet seat is forced into intimate contact with a mating surface on one of the soft rings

An \emph{ab initio} method for locating characteristic potential energy minima of liquids

It is possible in principle to probe the many--atom potential surface using density functional theory (DFT). This will allow us to apply DFT to the Hamiltonian formulation of atomic motion in monatomic liquids [\textit{Phys. Rev. E} {\bf 56}, 4179 (1997)]. For a monatomic system, analysis of the potential surface is facilitated by the random and symmetric classification of potential energy valleys. Since the random valleys are numerically dominant and uniform in their macroscopic potential properties, only a few quenches are necessary to establish these properties. Here we describe an efficient technique for doing this. Quenches are done from easily generated "stochastic" configurations, in which the nuclei are distributed uniformly within a constraint limiting the closeness of approach. For metallic Na with atomic pair potential interactions, it is shown that quenches from stochastic configurations and quenches from equilibrium liquid Molecular Dynamics (MD) configurations produce statistically identical distributions of the structural potential energy. Again for metallic Na, it is shown that DFT quenches from stochastic configurations provide the parameters which calibrate the Hamiltonian. A statistical mechanical analysis shows how the underlying potential properties can be extracted from the distributions found in quenches from stochastic configurations