On the Evidence for Clustering in the Arrival Directions of AGASA's Ultrahigh Energy Cosmic Rays

Previous analyses of cosmic rays above 40 EeV observed by the AGASA experiment have suggested that their arrival directions may be clustered. However, estimates of the chance probability of this clustering signal vary from 10^{-2} to 10^{-6} and beyond. It is essential that the strength of this evidence be well understood in order to compare it with anisotropy studies in other cosmic ray experiments. We apply two methods for extracting a meaningful significance from this data set: one can scan for the cuts which optimize the clustering signal, using simulations to determine the appropriate statistical penalty for the scan. This analysis finds a chance probability of about 0.3%. Alternatively, one can optimize the cuts with a first set of data, and then apply them to the remaining data directly without statistical penalty. One can extend the statistical power of this test by considering cross-correlation between the initial data and the remaining data, as long as the initial clustering signal is not included. While the scan is more useful in general, in the present case only splitting the data set offers an unbiased test of the clustering hypothesis. Using this test we find that the AGASA data is consistent at the 8% level with the null hypothesis of isotropically distributed arrival directions.Comment: 14 pages, 3 figures. Unbiased test expanded to include cross-correlation between initial and later data sets for greater statistical power; minor revisions to discussion. Accepted by Astropart. Phy

Space acceleration measurement system triaxial sensor head error budget

The objective of the Space Acceleration Measurement System (SAMS) is to measure and record the microgravity environment for a given experiment aboard the Space Shuttle. To accomplish this, SAMS uses remote triaxial sensor heads (TSH) that can be mounted directly on or near an experiment. The errors of the TSH are reduced by calibrating it before and after each flight. The associated error budget for the calibration procedure is discussed here

Euler Technology Assessment program for preliminary aircraft design employing SPLITFLOW code with Cartesian unstructured grid method

This report documents results from the Euler Technology Assessment program. The objective was to evaluate the efficacy of Euler computational fluid dynamics (CFD) codes for use in preliminary aircraft design. Both the accuracy of the predictions and the rapidity of calculations were to be assessed. This portion of the study was conducted by Lockheed Fort Worth Company, using a recently developed in-house Cartesian-grid code called SPLITFLOW. The Cartesian grid technique offers several advantages for this study, including ease of volume grid generation and reduced number of cells compared to other grid schemes. SPLITFLOW also includes grid adaptation of the volume grid during the solution convergence to resolve high-gradient flow regions. This proved beneficial in resolving the large vortical structures in the flow for several configurations examined in the present study. The SPLITFLOW code predictions of the configuration forces and moments are shown to be adequate for preliminary design analysis, including predictions of sideslip effects and the effects of geometry variations at low and high angles of attack. The time required to generate the results from initial surface definition is on the order of several hours, including grid generation, which is compatible with the needs of the design environment

Letter from James B. Finley to C. Clark

Finley was glad to receive Caleb Clark\u27s excellent paper (The Ohio Organ, of the Temperance Reform). While looking it over Finley noticed this question: Where were the clergy on Thursday of the County Temperance Convention? Finley says he was ill and not able to attend but wants it known that he is a whole soul temperance man. He tells of the extensive work he has done in the cause of temperance. Abstract Number - 1205https://digitalcommons.owu.edu/finley-letters/2185/thumbnail.jp

Letter from James B. Finley to Samuel Arminius Latta

This morning I received the first issue of your paper and I suppose to try to harass my mind with things which you will say about me, and I say now to you, I want you to send me no more. I have lost all confidence in you as an honorable man. You have treated me badly as the best and finest friend you ever had and I look upon ingratitude as the worst exhibition of the human heart. I want nothing to do with you and all you can say about me. I know you will not injure me for we are both known in this community. I want no controversy with you and I hope you may yet have gratitude enough just to let me be at peace. I can do the same with you. All the arguments you could use in a life time if it should as long as Mathesolus will not change my mind. I am your much injured and maltreated friend. Abstract Number - 280https://digitalcommons.owu.edu/finley-letters/1278/thumbnail.jp

Letter from James B. Finley to Rev. Abel Stevens

To Abel Stevens, editor Zion\u27s Herald. Dear Brother: This leaves me in as good health as I have enjoyed for years, or since I left the (Ohio) Penitentiary. I am much more than thankful to you and to the Michigan Advocate for giving some us poor ministers in the Ohio Conference the privilege of defending ourselves against some of the most violent measures that in my opinion ever disgraced a body of ministers, calling themselves the ambassadors of the Blessed Jesus. Just because we would not believe and consent to act on the rule, advising us to build our houses of worship with free seats as mandatory and punishable, by the Executive Officers of the Discipline. No doubt you are well posted upon some of the doings of the aristocracy of our Conference, viz: Walker, Trimble, Moody, and company, and no one has come in for more of their abuse than myself. Brother Inskip has been persued with a penitential zeal that would have been worthy of the Dark Ages, and our beloved Bishop Janes has been abused and reviled in the public streets of Chillicothe, and the brethren who have contended for the privilege of Family Sitting, their houses were called Houses of Assignation. Now my Brother, as you have noticed in your paper that I am superannuated, if you will consent I will the whole tale through your paper and let my old and tried friends and brethren in the membership and ministers, east and west know, why I am driven to the position I now occupy. It is to me a most painful task and so far as I am concerned I would decline saying anything. The interests of the Church and the feelings of my friends are concerned, call for it. As you have opened your columns for me and others, I hope you will permit me to give the history and the documents from the beginning to the end. I shall be very particular only to state such things as will be proven without controversy, both in reference to facts and circumstances, and in closing up this letter -- suffer me to say that the 10th day of last August, about 9:00 o\u27clock in the morning -- in the State of Kentucky, I was born of the Spirit 50 years ago (or in 1801). I have been traveling as an Itinerant 43 years the 1st day of next May. I have labored from the Fall of 1819 to 1828 as Superintendent on the Indian Mission; six years of that time I lived with them, and took of their hospitality eating and sleeping in their wigwams and in the woods, often between a colored man (Stewart or Pointer) and an Indian brother; on my bed of dried bark or an a bear or buffalo skin. Three years and 3 months did I spend in the Ohio Penitentiary as Moral Instructor not as a prisoner. I lived in the prison with the prisoners every day, prayed at their breakfast table every morning and ate with their guards. I had the appointment of Presiding Elder by the appointing powers for 22 years of my Itinerant life. I have traveled the ______ circuits of this Western valley, and done and suffered as much as any man for the cause of God and Methodism on the west side of the mountains according to my talents and at no time has my moral character been called in question, either for sincerity, honesty or sobriety until the Conference at Chillicothe on last September where I was accused by Mr. Granville Moody. I have sought redress, but none has been afforded me. So my dear friend if you will permit, I will in the fear of God and I hope with the Spirit of a Christian minister state my whole grievance and then let the world and my brethren judge, and if they shall find me guilty, I will not object to be anathematized. If you will permit this please send me your excellent paper as a subscriber, and I will send you the subscription price by the next communication...I am yours affectionately. J.B. Finley. Abstract Number - 468https://digitalcommons.owu.edu/finley-letters/1666/thumbnail.jp

Letter from James B. Finley to John Johnston

Finley responds to Johnston on the subject of moving the Wyandot Indians westward. He accuses Johnston of being hypocritical on the subject, telling both the whites and the Wyandots what they want to hear. Finley is adamant that he will never advise the Indians to move. Abstract Number - 749https://digitalcommons.owu.edu/finley-letters/2256/thumbnail.jp