215,905 research outputs found
Coenosia flagelliseta Muller & Midgley 2022
No full textCoenosia flagelliseta Muller, 2019 (Figs 11–13, 21, 26, 27) Coenosia flagelliseta Muller, 2019: 241, figs 3, 4, 7, 8, 11, 12, 15–19, 26, 29, 30. Material Examined. Holotype Ô South Africa: Mpumalanga: Mariepskop State Forest, Radar station road at: 24.5466°S, 30.8646°E, 26–28.i.2017, 1 885 m [a.s.l.], Kirk-Spriggs & Muller, Malaise trap over ravine, Northern Escarpment Afromontane Fynbos; Holotype Ô Coenosia flagelliseta sp. nov., B.S. Muller 2019; BMSA (D)02271; BMSA type no. 317. Micro-pinned specimen. Specimen deposited in the National Museum, Bloemfontein, South Africa. Paratype ♀ Same data as for Holotype. Paratype ♀ Coenosia flagelliseta sp. nov.; B.S. Muller 2019; BMSA (D)02273; BMSA type no. 318. Micro-pinned specimen, genitalia dissected, stored together with abdomen in vial under specimen. Specimen deposited in the National Museum, Bloemfontein, South Africa. Diagnosis. Males can easily be distinguished from other known species of Coenosia by the whip-like setae and setulae on the thorax and legs. The females have a supramedian posterior seta on the mid tibia, which is absent in the female of C. curiosa, the only other known globuliseta -group species with the female described. Correction. The original BMSA type numbers 306 and 307 assigned to the holotype (BMSA(D)02271, and female paratype (BMSA(D)02273) respectively in Muller (2019) were incorrectly assigned due to an administrative error and were already preoccupied by other specimens in the National Museum, Bloemfontein collection. The new correct numbers are included in the material examined citation above for future reference.Also, the female paratype is also incorrectly referred to as an Allotype under the measurement section in Muller (2019). Distribution. South Africa (Mpumalanga).Published as part of Muller, Burgert S. & Midgley, John M., 2022, How strange: Coenosia curiosa sp. nov. (Diptera: Muscidae), the first recorded Tiger fly from Lesotho, with revision of the Coenosia globuliseta-group, pp. 367-377 in Zootaxa 5222 (4) on page 375, DOI: 10.11646/zootaxa.5222.4.5, http://zenodo.org/record/746676
Simulation of thermal plant optimization and hydraulic aspects of thermal distribution loops for large campuses
No full textFollowing an introduction, the author describes Texas A&M University and its utilities system. After that, the author presents how to construct simulation models for chilled water and heating hot water distribution systems. The simulation model was used in a $2.3 million Ross Street chilled water pipe replacement project at Texas A&M University. A second project conducted at the University of Texas at San Antonio was used as an example to demonstrate how to identify and design an optimal distribution system by using a simulation model. The author found that the minor losses of these closed loop thermal distribution systems are significantly higher than potable water distribution systems. In the second part of the report, the author presents the latest development of software called the Plant Optimization Program, which can simulate cogeneration plant operation, estimate its operation cost and provide optimized operation suggestions. The author also developed detailed simulation models for a gas turbine and heat recovery steam generator and identified significant potential savings. Finally, the author also used a steam turbine as an example to present a multi-regression method on constructing simulation models by using basic statistics and optimization algorithms. This report presents a survey of the author??s working experience at the Energy Systems Laboratory (ESL) at Texas A&M University during the period of January 2002 through March 2004. The purpose of the above work was to allow the author to become familiar with the practice of engineering. The result is that the author knows how to complete a project from start to finish and understands how both technical and nontechnical aspects of a project need to be considered in order to ensure a quality deliverable and bring a project to successful completion. This report concludes that the objectives of the internship were successfully accomplished and that the requirements for the degree of Degree of Engineering have been satisfied
Intern experience at CH���M Hill, Inc.: an internship report
No full textIncludes author's vita"Submitted to the College of Engineering of Texas A&M University in partial
fulfillment of the requirement for the degree of Doctor of Engineering."Includes bibliographical referencesA review of the author's internship experience with CH���M HILL, Inc.
during the period September 1975 through May 1976 is presented. During this nine month
internship the author worked as an Engineer II in the Industrial Processes discipline of this
large consulting engineering firm... The author's prime responsibility was as one of three
lead design engineers on the design of a large wastewater treatment facility for a pulp mill
in Hoquiam, Washington owned by ITT Rayonier Inc. The work generally consisted of the design
of individual treatment units and associated piping and pumping. The purpose of the project
was to provide wastewater treatment capabilities that would satisfy the effluent limitations
(standards) imposed upon the mill by the State of Washington Department of Ecology and the
U.S. Environmental Protection Agency. The author's assignment also entailed necessary
interaction with the project manager and other CH���M HILL design engineers and support staff
members, the client's representatives, and representatives of two other consulting engineering
firms working on the project. Thus, the internship position at CH���M HILL provided considerable
experience coordinating the author's work with the work of other engineers, guiding the design
and administrative efforts of a support staff, and interacting regularly with the client and
other consulting firms. This broad exposure to a variety of engineering and organizational
problems provided a valuable educational experience
Yard Management: Identification and Evaluation of Critical Sub-processes with AHP
No full textYard management is crucial for logistics and transport operations due to the high influence towards smooth and efficient intralogistics on dedicated depot sites of logistics service providers. Yet, this field has interesting new insights to offer, especially regarding prioritizing and decision-making concepts with the support of Multi-Criteria Decision Analysis (MCDA) tools. Within this publication five critical yard sub-processes are identified and prioritized with the AHP methodology in the following order: management of the shunting system, registration at the gateway, allocation of trucks to gates/parking spaces, removal of a transport unit from the gate and exit control
Implementation of an experimentally feasible controlled-phase gate on two blockaded Rydberg atoms
No full textWe investigate the implementation of a controlled-Z gate on a pair of Rydberg atoms in spatially separated dipole traps where the joint excitation of both atoms into the Rydberg level is strongly suppressed (the Rydberg blockade). We follow the adiabatic gate scheme of Jaksch et al. [D. Jaksch, J. I. Cirac, P. Zoller, S. L. Rolston, R. Côté, and M. D. Lukin, Phys. Rev. Lett. 85, 2208 (2000)PRLTAO0031-900710.1103/PhysRevLett.85.2208], where the pair of atoms is coherently excited using lasers, and apply it to the experimental setup outlined by Gaëtan et al. [A. Gaëtan, Y. Miroshnychenko, T. Wilk, A. Chotia, M. Viteau, D. Comparat, P. Pillet, A. Browaeys, and P. Grangier, Nat. Phys. 5, 115 (2009)NPAHAX1745-247310.1038/nphys1183]. We apply optimization to the experimental parameters to improve gate fidelity and consider the impact of several experimental constraints on the gate success. © 2014 American Physical Society
Códigos de Reed-Muller
No full textThe Reed-Muller codes were discovered by David Eugene Muller and decoded by Irving Stoy Reed in 1954. Such codes belong to the linear code family and are widely used nowadays, mainly for their simple and efficient decoding algorithm. There are several ways to define Reed-Muller codes. In this work, we present, in a clear and simple way, a recursive definition for all Reed-Muller codes of order r \in N, denoted by R (r, m), where 0 <= r <= m, m \in N. Using this definition, we show the main parameters: length, number of elements and minimum distance of first-order Reed-Muller codes, R(1, m) for all m \in N. In addition, we present an application of the first-order codes in a National Aeronautics and Space Administration (NASA) space program.Os códigos de Reed-Muller foram descobertos por David Eugene Muller e decodificados por Irving Stoy Reed em 1954. Tais códigos pertencem à família dos códigos lineares e são bastante utilizados hoje em dia, principalmente pelo seu simples e eficiente algoritmo de decodificação. Existem várias maneiras de se definir os códigos de Reed-Muller. Neste trabalho apresentamos, de maneira clara e simples, uma definição recursiva para todos os códigos de Reed-Muller de ordem r \in N, denotados por R(r,m), onde 0 <= r <= m e m \in N. Utilizando essa definição, demonstramos quais são os principais parâmetros: comprimento, número de elementos e distância mínima dos códigos de Reed-Muller de primeira ordem, R(1,m) para todo m \in N. Além disso, apresentamos também uma aplicação dos códigos de primeira ordem em um programa espacial da National Aeronautics and Space Administration (NASA)
Weighing evidence
No full textCITATION: Muller, M.A. 2019. Weighing evidence. Advocate, 32(3):60-61.The original publication is available at https://www.sabar.co.za/law-journals/Often different pieces of evidence of different degrees of credibility are submitted in legal proceedings. Then a court “weighs” the evidence and arrives at a conclusion. But how should evidence be weighed? The use of probability theory comes to mind. Examples in this article illustrate this approach.Post prin
Weak Muller acceptance conditions for tree automata
No full textOver the last decades the theory of automata on infinite objects has been an important source of tools for the specification andthe verification of computer programs. Trees are more suitable than words to model nondeterminism and concurrency. In the literature, there are several examples of acceptance conditions that have been proposed for automata on infinite words and then have been fruitfully extended to infinite trees. The type of acceptance condition can influence both the succinctness of the language acceptors and the computational complexity of the decision problems. Here we consider, relatively to automata on infinite trees, two acceptance conditions that are obtained by relaxing Muller acceptance condition: the Landweber and the Muller-Superset conditions. We prove that Muller-Superset tree automata accept the same class of languages as Büchi tree automata. Also, we show that for such languages the minimal Muller-Superset acceptor is at least as succinct as the minimal Büchi acceptor and, in some cases, it can be exponentially more succinct. Landweber tree automata, instead, define a class of languages that is not comparable with that defined by Büchi tree automata. The main result we prove is that the emptiness problem for this class of automata is decidable in polynomial time, andthus we extendthe class of automata with a tractable emptiness problem
Coenosia curiosa Muller & Midgley 2022, sp. nov.
No full textCoenosia curiosa sp. nov. (Figs 3–10, 20, 24, 25) Zoobank LSID: urn:lsid:zoobank.org:act: E68BD71E-7513-4CFD-B14F-E5F52024E6D8 Type material examined. Holotype Ô “// LESOTHO: Butha-Buthe: / Afriski Mountain Resort / 28°49’22.2”S, 28°43’41.0”E / 3–7.xii. 2021, 3032 m a.s.l. / Midgley, J.M. & Muller, B.S.” // “ Sweepnet / Drakensberg Afro- / alpine Heathland ” // “NMSA-Dip. 212862”; NMSA type no. 3237. 1Ô 7♀ Paratypes: same data as holotype (Ô: BMSA (D)129185; ♀: BMSA (D)130304, BMSA (D)130322, BMSA (D)129186, NMSA-Dip. 212863, NMSA-Dip. 212864, NMSA-Dip. 212865, NMSA-Dip. 212866); NMSA type no. 3237 Diagnosis. Males can easily be distinguished from other species within the globuliseta- group, and other nonglobular species by the seemingly unique apically globular seta on the antennal pedicel (Fig. 7) in combination with well-developed and normally appearing thoracic and leg setae and setulae. Females have the supramedian posterior seta on the mid tibia absent, and tergite 6 as two relatively slender plates (Fig. 24), compared with females of C. flagelliseta (the only other known female in the group) that have the seta present, and tergite 6 as a broad, fused plate (Fig. 26). Males and females with preapical dorsal and anterodorsal setae on hind tibia, unlike the other species in the group.Published as part of Muller, Burgert S. & Midgley, John M., 2022, How strange: Coenosia curiosa sp. nov. (Diptera: Muscidae), the first recorded Tiger fly from Lesotho, with revision of the Coenosia globuliseta-group, pp. 367-377 in Zootaxa 5222 (4) on page 370, DOI: 10.11646/zootaxa.5222.4.5, http://zenodo.org/record/746676
Intern experience at the Texas Transportation Institute: an internship report
No full text"Submitted to the College of Engineering of Texas A&M University in partial
fulfillment of the requirements for the degree of Doctor of Engineering."Includes vita (leaf 91)Includes bibliographical references (leaf 57)This report discusses the author's engineering experience at the Texas
Transportation Institute (TTI), Texas A&M University from March 1974 through July 1977. A
report of this experience plus twelve additional hours of academic course work were
substituted for an internship according to requirements established by the College of
Engineering. Although the author could not retroactively establish objectives of the type
associated with a typical internship, the work experience gained could be related to the two
general objectives of an intership: 1. To demonstrate an identifiable contribution to the
organization in which the intern served, and 2. To enable the intern to become aware of the
non-technical aspects of working as an engineer in a non-academic environment. While a member
of the Texas Transportation Institute staff, the author worked on a number of projects in the
areas of highway traffic engineering research and the preparation of continuing education
courses for transportation engineering officials. These assignments were contained within the
Urban Transportation Systems Division of TTI. This report delineates the author's contribution
to four particular projects and discusses the technical as well as non-technical experience
gained from each. Having been exposed to more engineering situations than many of the other
Doctor of Engineering students, the author has already formulated some rather specific
milestones for the future. The Doctor of Engineering program is discussed in conjunction with
its potential for helping the author attain these career goals and objectives. Also, some
thoughts are presented regarding the Doctor of Engineering as a viable alternative to the
Ph.D. in preparing for a career in engineering higher education
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