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Large-scale reserve constrained alternating current optimal power flow methods
No full textThe Alternating Current Optimal Power Flow (ACOPF) problem seeks optimal operational planning for power systems with the lowest cost within the operational and physical constraints, ensuring higher efficiency and reliability for the power system. Meanwhile, the power reserve scheduling, which ensures an adequate backup capacity to compensate for demand and supply fluctuations, contingencies, and various unforeseen disruptions, plays a crucial role in power system reliability. As power systems become more stochastic and dynamic, the co optimization of energy and reserve becomes a significant trend among independent system operators (ISOs) and regional transmission organizations (RTOs), as it yields substantial benefit improvement over independent optimizations. Furthermore, expanding ACOPF to a multi-period format captures temporal dependencies and operational dynamics, enabling more comprehensive modeling of realistic power system operation, which enhances strategic management of the power system. However, the large-scale nature of the power system, the inherent nonlinearity and nonconvexity of the ACOPF, the increased model complexity due to the additional reserve scheduling, and the expanded model scale with linked decision variables across time periods, collectively contribute to substantial computational complexity, making it a challenging optimization problem. To tackle this challenge and achieve a fast, optimal, and reliable power system operational planning, the proposed research develops advanced solution methods involving two representative endeavors: the development of mathematical optimization algorithms with enhanced computational efficiency, and the investigation of the decomposition techniques along with the implementation on advanced computational resources. Firstly, the single-period reserve constrained ACOPF (RCOPF), which co-optimizes energy and reserve through detailed modeling of various reserve types with considering AC network constraint, is addressed with an accelerated primal-dual interior point (A-PDIPM) optimization algorithm. Secondly, the multi period RCOPF (M-RCOPF) is addressed with a parallel optimization approach, which enables problem decomposability by reformulating the intertemporal coupling constraints with introduced auxiliary variables, and decomposes the problem into two major solution modules. Each module consists of multiple independent smaller subproblems that are solved simultaneously in a fully parallel manner on the advanced High-Performance Computing (HPC) platform. As a result, the proposed methods effectively solve the large-scale reserve constrained ACOPF problems, ensuring efficient and reliable power system operation planning
Cotton development, yield, and boll distribution response to row pattern and plant density
No full textThe effects of row pattern and plant density on the ability of cotton (Gossypium hirsutum L.) to compensate and sustain profitable yields has been evaluated by many studies. However, new varieties exhibiting more vigorous growth and more exaggerated row patterns have yet to be evaluated. Therefore, experiments were conducted in Starkville, MS and Stoneville, MS in 2021 and 2022 to evaluate the influence of 1x1 skip row patterns and plant density on cotton growth, development, yield, boll distribution, and profitability. In 2021 there was no yield response due to plant population. However, in 2022, yields increased as plant density increased. Lint yield was greater in the solid row pattern when compared to the skip row pattern in three of four site years. Boll distribution was influenced both vertically and horizontally by row pattern and plant density
Building Respect, Responsibility, and Reciprocity: Insights From a Rural STEM Research Practice Design Partnership
Get PDFRural schools often have strong community involvement and thus can offer educational experiences to students that are more closely aligned with local people and places. However, curricula in rural schools rarely offer this same alignment. Partnerships with others, including higher education, can support rural schools in creating STEM curricula that center the resources and careers present in their communities. A research design practice partnership (RPDP) was created as a Third Space to enable the development of locally relevant STEM curricula. The partnership was formed focusing on respect, responsibility, and reciprocity, necessary tenets as the roles and goals of the project changed. Interviews with participants provide insights into the formation and maintenance of RPDPs, especially as roles changed and goals shifted. Collectively, the importance of having shared vision and goals for the project are a core part of establishing and maintaining respect. Responsibility is difficult to maintain within a Third Space, especially as members of long-term RPDPs change professionally. Reciprocity should be evidenced in many ways, starting at the onset of the RPDP, to establish a Third Space wherein all perspectives are valued and encouraged. Findings discuss the importance of, and challenges faced within, the RPDP, centering respect, responsibility, and reciprocity
The Underdevelopment of the Needmore Community
No full textIn this talk, author, photographer, and retired educator Jerry Boyd Jones reflects on the history of Starkville’s Needmore Community. Needmore, the oldest African American community in Starkville, has been central to the story and life of Starkville and surrounding areas for over a century. Through the efforts and ingenuity of its residents, Needmore became a center of culture and life in Starkville despite segregation and limited resources. Yet in the late 1960s and early 1970s, Needmore was targeted for removal by an Urban Renewal program that displaced many of its residents. The history of Needmore is a story of triumph in adverse circumstances, but also a story of intentional underdevelopment, important to both the past and the present of Starkville
Letter, A. D. Stewart to Senator Theodore G. Bilbo, November 8, 1941
Get PDFIn this letter, dated November 8, 1941, A. D. Stewart, the Regional Director of the Farm Security Administration writes to U. S. Senator, Theodore Theo G. Bilbo to express that Bilbo\u27s recommendation on behalf of Anna Buchanan is being forwarded to Washington officials so that Buchanan may be given an early appointment. An envelope addressed to Anna Buchanan with a November 10, 1941, Washington D.C. postmark is included.https://scholarsjunction.msstate.edu/mss-james-franklin-buchanan/1001/thumbnail.jp
Christmas Card, Donald G. Herring, Jr. to Anna Buchanan, December 17, 1960
Get PDFThe cover of this Christmas card features a photograph of Don Herring, Jr. standing among the brush beside a small creek with a hill behind him. The photo is framed by a blue and white snowflake design with Holiday Greetings below. The note inside signs the card as being from Lois, Don, Grant, Peggy, Stormy and assorted cats while the handwritten note on the back of the card informs Buchanan of the serious illness Lois has been battling. An envelope with a red US airmail postage stamp and a Altadena, California postmark is included.https://scholarsjunction.msstate.edu/mss-james-franklin-buchanan/1011/thumbnail.jp
Letter, J. H. Cinotto to Anna Buchanan, February 4, 1975
Get PDFIn this letter, dated February 4, 1975, J. H. Cinotto of Texaco, Inc. writes to Anna Buchanan to request her signature approving the gas and oil lease agreement between her sister-in-law, Maude Buchanan and Texaco as Anna is the remainderman of the property being leased. The letter provides a description of the property in Tallahatchie County, Mississippi to be leased. The letter is typed on Texaco, Inc. letterhead.https://scholarsjunction.msstate.edu/mss-james-franklin-buchanan/1013/thumbnail.jp
Funeral Message by August Schmitt, Jr., Columbia Presbyterian Church
Get PDFThis funeral sermon, presented by August Schmitt, Jr., includes scripture and offers comfort in the loss of an unidentified person named Nancy. A poem titled Poem Used at the Grave is included on a sheet of From the Pastor\u27s Desk stationary and an envelope addressed to Anna Buchanan is included.https://scholarsjunction.msstate.edu/mss-james-franklin-buchanan/1015/thumbnail.jp
Letter, Silas L. Buchanan to Harriet Ann Buchanan, April 5, 1947
Get PDFIn this letter, dated April 5, 1947, Silas Buchanan writes to his infant niece, Harriet Ann Buchanan to tell her how excited he is for her birth, offers her advice on life, and fills her in on their family. The letter is written on Tupelo Daily Journal letterhead and an accompanying envelope, postmarked Tupelo, Mississippi with six postage stamps is included.https://scholarsjunction.msstate.edu/mss-james-franklin-buchanan/1017/thumbnail.jp
Letter, Miles Puckett to James Franklin and Margaret Buchanan, August 15, 1975
Get PDFIn this letter, dated August 15, 1975 Miles Pucket writes to James Franklin Frank and Margaret Ray Buchanan to thank them for their help in researching the Boyd family. He goes on to say that the remaining Puckett\u27s are grateful for the information and kindness extended them when they visited Kosciusko the previous month. Two obituaries clipped from newspapers are included with the letter. A Grand Canion College envelope with a Phoenix, Arizona postmark is also included. The letter is written on Grand Canyon College stationary.https://scholarsjunction.msstate.edu/mss-james-franklin-buchanan/1044/thumbnail.jp