202,108 research outputs found
Analytic Kramer kernels, Lagrange-type interpolation series and de Branges spaces
No full textThe classical Kramer sampling theorem provides a method for obtaining orthogonal sampling formulas. In particular, when the involved kernel is analytic in the sampling parameter it can be stated in an abstract setting of reproducing kernel Hilbert spaces of entire functions which includes as a particular case the classical Shannon sampling theory. This abstract setting allows us to obtain a sort of converse result and to characterize when the sampling formula associated with an analytic Kramer kernel can be expressed as a Lagrange-type interpolation series. On the other hand, the de Branges spaces of entire functions satisfy orthogonal sampling formulas which can be written as Lagrange-type interpolation series. In this work some links between all these ideas are established
Correspondence with Helen M. Kramer, Studies on the Left, March 28, 1962 - April 22, 1963
No full textCorrespondence between Helen M. Kramer of Studies on the Left and Fayez Sayegh from March 28, 1962 to April 22, 1963, regarding a book review essay on Morrow Berger\u27s "The Arab World Today"
Lila (Rita) Seldin Kramer
No full textDr. Lila (Rita) Seldin Kramer, a Palo Alto resident since 1959, died Sept. 17, 2015, with loved ones at her side. She was 87. A psychiatrist and Jungian analyst, she was born May 17, 1928, in Brooklyn to oral surgeon Dr. Harry M. and Tena E. Seldin, and was raised there and in Putnam Valley, New York. She got her undergraduate degree from University of Wisconsin, Madison, her M.D. from New York University, and was certified as a Jungian analyst by the C. G. Jung Institute of San Francisco. Lila did her residency in psychiatry, and was on the clinical faculty, at Stanford and maintained a private practice in Palo Alto for many years. Lila is survived by her daughter, Linda Kramer (Steven), grandchildren, Sara and David her son, Ron Kramer (Kim), granddaughters, Hannah and Abby sisters, Evelyn Rakower (Bill) and Marlene Cohen (Mel) and many beloved nieces, cousins, other extended family and dear friends. Lila was predeceased by her son-in-law Alex Fried. Lila was the adventurist sort. She rode horseback around the pyramids, backpacked the High Sierras including climbing Mount Whitney, skied black diamond trails, rafted, traveled the world and generally lived life to the fullest. In many ways Lila was ahead of her times. For example, she got an M.D. in 1953, at a time when few women did. She was an early feminist and mentor to many younger women. She was the consummate listener. She worked a plot at Palo Alto main community garden for decades, was an awesome cook (grandma's famous chocolate cake scrumptious meatloaf, brisket, matzo balls, chopped liver and cabbage rolls), a prolific ceramicist and an avid reader. Lila loved spending time with her family and friends, Frank Sinatra, lobster, listening to opera at Davies Symphony Hall and seeing Shakespeare in the redwoods at UC Santa Cruz. She was the coolest mom and grandma ever. Hey, she wore tie die and got a tattoo at age 85! We miss you
Data supporting the comparison of golden-winged warbler and American woodcock productivity in northern Minnesota, USA
No full textSee ReadMe.txt for detailed description of files. Files include model-predicted productivity for both species (raster), digitized land-cover type classification of study area (shapefile), predicted productivity of both species at observed nesting sites, and R code to make the statistical comparisons and produce the graphs in Kramer et al. (2019).Spatially explicit predicted reproductive output for golden-winged warblers and American woodcock at Tamarac National Wildlife Refuge, Minnesota, USA used to compare reproductive output of woodcock and warblers in Kramer et al. (2019; DOI:https://doi.org/10.1016/j.biocon.2019.02.039). Models developed by Peterson (2014: http://hdl.handle.net/11299/167309),Peterson et al. (2016) rely on raw demographic data for golden-winged warblers collected and reported by Peterson (2014; http://hdl.handle.net/11299/167309). Models developed by Kramer (2017; http://hdl.handle.net/11299/188784) and Kramer et al. (in press) use raw demographic data for American woodcock collected and reported by Daly (2014; http://hdl.handle.net/11299/167288).Kramer, Gunnar R; Peterson, Sean M; Daly, Kyle O; Streby, Henry M; Andersen, David E. (2019). Data supporting the comparison of golden-winged warbler and American woodcock productivity in northern Minnesota, USA. Retrieved from the University Digital Conservancy, https://doi.org/10.13020/znag-tn48
Marcusenius altisambesi Kramer 2007
No full text<i>Marcusenius altisambesi</i> Kramer et al., 2007 <p>(Figure 4C, D)</p> <p> <i>Gnathonemus okavangensis</i> Pappenheim, 1907. “Appeared as a form of <i>Gnathonemus macrolepidotus</i> Peters from the Okavango R., Damaraland, Africa; regarded as infrasubspecific and not available” (Eschmeyer 2013). “Nomen dubium” according to Gosse (1984) and Seegers (1996, p. 73).</p> <p> <i>Gnathonemus macrolepidotus</i>: Gilchrist and Thompson 1913, pp. 330–331.</p> <p> <i>Marcusenius altisambesi</i> Kramer et al. (2007), pp. 681–684.</p> <i>Type specimens</i> <p>Holotype: SAIAB 79135 (specimen L39isi), Namibia: Caprivi Strip: Lisikili on Upper Zambezi River. Paratypes: SAIAB 79136 (6), SAIAB 79137 (3), ZSM 35086 (5), ZSM 35085 (2), ZSM 35097 (1), ZSM 35082 (2); all examined.</p> <p> <b>–</b> Non-types, examined. One hundred and four specimens from the Upper Zambezi River System, East Caprivi, Namibia, some specimens from Kalimbeza presently alive in Aquarium:</p> <p> <b>–</b> SMF 28264 (22 specimens), from the Zambezi River, Lisikili backwater, 17 ◦ 33 ′ S, 24 ◦ 29 ′ E (type locality), coll.: F.H. van der Bank and B. Kramer, 5–7 March 1994,</p> <p> <b>–</b> SMF 28264 (45 specimens), ZSM 35084 (1), from the Kwando River, Nakatwa, 18 ◦ 06 ′ S, 23 ◦ 23 ′ E, in Mudumu National Park, coll.: B. Kramer, 9–15 March 1994, locality 6 on Figure 1,</p> <p> <b>–</b> SMF 28264 (two specimens), from Kwando River, Nkasa Island (18 ◦ 27 ′ S, 23 ◦ 42 ′ E) in Mamili National Park, close to locality 6 on Figure 1, coll.: F.H. van der Bank and B. Kramer, 9–10 September 1993,</p> <p> <b>–</b> 31 specimens, about 500 m from opposite Kalimbeza fishing camp, at downstream tip of small island between Lisikili side channel and main channel, coll.: F.H. van der Bank and B. Kramer, caught 21 August 1999, water conductivity and temperature, 84 µS cm, 22 ◦ C, size range 7.2–13.3 cm SL, arrival live in Regensburg 2 September 1999, EOD recording 28 September to 7 October 1999 at 100 µS cm−1 water conductivity and 21 ◦ C (EOD recording in Germany for quicker transport in Africa), presently alive,</p> <p> −1</p> <p> <b>–</b> ZSM 35083 (1), from Kwando River, Kongola Bridge, 17 ◦ 47 ′ 26.7 ′′ S, 23 ◦ 20 ′ 40.0 ′′ E, 24 January 2001, coll.: F.H. van der Bank and B. Kramer,</p> <p> <b>–</b> Non-types (63 specimens)from the Okavango River, Botswana, totalling at least 10 males, male size range 110–181 mm SL, juvenile/female size range 54–169 mm SL, examined:</p> <p> <b>–</b> SAIAB 79140 (9), ZSM 35079 (1), ZSM 35080 (3), ZSM 35081 (6) from the Okavango River, Makwena Lodge, near the township of Etsha no. 6, 19 ◦ 07 ′ 30 ′′ S, 22 ◦ 22 ′ E, coll.: F.H. van der Bank, J. Engelbrecht and B. Kramer, 20–22 January 2001, locality 7 on Figure 1,</p> <p> <b>–</b> SAIAB 79143 (6), ZSM 35096 (5), and 24 specimens presently alive in aquarium, from the Okavango River at Guma Lagoon, 18 ◦ 57 ′ 46.6 ′′ S, 22 ◦ 22 ′ 25.3 ′′ E, coll.: F.H. van der Bank and B. Kramer, 10–12 August 2004, close to locality 7 on Figure 1,</p> <p> <b>–</b> SAIAB 79141 (1), ZSM 35095 (1), and seven specimens presently alive in aquarium, details as in preceding paragraph, except for locality at Makwena, 19 ◦ 03 ′ 13.85 ′′ S, 22 ◦ 22 ′ 42.6 ′′ E, 12 August 2004.</p> <p> <i>Samples examined for genetics.</i> DNA samples are stored at Institute of Pharmacy and Molecular Biotechnology, Heidelberg University (IPMB).</p> <p> <b>–</b> IPMB 44903–44905, Namibia: Upper Zambezi: Kalimbeza, 17 ◦ 32 ′ 27.3 ′′ S, 24 ◦ 31 ′ 26.2 ′′ E, coll. F.H. van der Bank and B. Kramer, 21 August 1999;</p> <p> <b>–</b> IPMB 44638–44640 Botswana: Okavango: Guma Lagoon, 18 ◦ 57 ′ 46.6 ′′ S, 22 ◦ 22 ′ 25.3 ′′ E, coll. F.H. van der Bank and B. Kramer, 10 August 2004; IPMB 44641, 44642, as before, but 10–12 August 2004; GenBank accession numbers: (KC 202230 – KC 202237).</p> <i>Type locality</i> <p> Upper Zambezi River in East Caprivi (Namibia); specifically Upper Zambezi River between Lisikili and Kalimbeza (or Kalambesa, 17 ◦ 33 ′ S, 24 ◦ 29 ′ E to 17 ◦ 32 ′ 27.3 ′′ S, 24 ◦ 31 ′ 26.2 ′′ E; 22–26 km straight line downstream from Katima Mulilo; Figure 1, no. 5).</p> <p> The first record of <i>G. macrolepidotus</i> for the Upper Zambezi is that of Gilchrist and Thompson (1917, p. 562), specifying Lialui, Barotseland as origin. For a description, the authors refer to Gilchrist and Thompson (1913, p. 330), a description of South African specimens that Kramer et al. (2007) have referred to <i>M. pongolensis</i> (Fowler, 1934). The presence of <i>G. macrolepidotus</i> in the Upper Zambezi System was confirmed by Jubb (1958). Another possible synonym would be <i>G. okavangensis</i> if it were available (this name should be dropped from a list of synonyms, as suggested by Kramer et al. 2007). Upper Zambezi and Okavango specimens were recognized as representing a new species, <i>M. altisambesi</i>, that is well differentiated from <i>M. macrolepidotus</i> (Peters, 1852) by Kramer et al. (2007).</p>Published as part of <i>Kramer, Bernd & Wink, Michael, 2013, East-west differentiation in the Marcusenius macrolepidotus species complex in Southern Africa: the description of a new species for the lower Cunene River, Namibia (Teleostei: Mormyridae), pp. 2327-2362 in Journal of Natural History (J. Nat. Hist.) (J. Nat. Hist.) 47 (35 - 36)</i> on pages 2335-2337, DOI: 10.1080/00222933.2013.798699, <a href="http://zenodo.org/record/5197590">http://zenodo.org/record/5197590</a>
Biodegradability of select polycyclic aromatic hydrocarbon (pah) mixtures
No full textPolycyclic aromatic hydrocarbons (PAHs) are environmentally significant
because of their ubiquity and the toxicity of some. Their recalcitrance and persistence
makes them problematic environmental contaminants. Microbial degradation is
considered to be the primary mechanism of PAH removal from the environment.
Biodegradation kinetics of individual PAHs by pure and mixed cultures have been
reported by several researchers. However, contaminated sites commonly have complex
mixtures of PAHs whose individual biodegradability may be altered in mixtures.
Biodegradation kinetics for fluorene, naphthalene, 1,5-dimethylnaphthalene and 1-
methylfluorene were evaluated in sole substrate systems, binary and ternary systems
using Sphingomonas paucimobilis EPA505. The Monod model was fitted to the data
from the sole substrate experiments to yield biokinetic parameters, (qmax and Ks). The
first order rate constants (qmax/Ks) for fluorene, naphthalene and 1,5-
dimethylnaphthalene were comparable, although statistically different. However, affinity
constants for the three compounds were not comparable. Binary and ternary experiments
indicated that the presence of another PAH retards the biodegradation of the co-occurring PAH. Antagonistic interactions between substrates were evident in the form of competitive inhibition, demonstrated mathematically by the Monod multisubstrate
model. This model appropriately predicted the biodegradation kinetics in mixtures using
the sole substrate parameters, validating the hypothesis of common enzyme systems.
Competitive inhibition became pronounced under conditions of: Ks1 > Ks1
and S1 >> S. Experiments with equitable concentrations of substrates demonstrated the
effect of concentration on competitive inhibition. Ternary experiments with naphthalene,
1,5-dimethylnapthalene and 1-methylfluorene revealed preferential degradation, where
depletion of naphthalene and 1,5-dimethylnapthalene proceeded only after the complete
removal of 1-methylfluorene. The substrate interactions observed in binary and ternary
mixtures require a multisubstrate model to account for simultaneous degradation of
substrates. However, developing models that account for sequential degradation may be
useful in scenarios where PAHs may not be competitive substrates. These mixture
results prove that substrate interactions must be considered in designing effective
bioremediation strategies and that sole substrate performance is limited in predicting
biodegradation kinetics of complex mixtures
Self-designing networks and structural influences on safety: Developing a theory on the relation between organizational design and safety in temporary organizations that operate in a dynamic environment
No full textContains fulltext :
178382.pdf (Publisher’s version ) (Open Access)Delft University of Technology, 01 juni 2017Promotores : Ale, B.J.M., Kramer, E.H.213 p
Groundwater remediation at a former oil service site
No full textAs an intern with URS Corporation, I participated in several remediation and wastewater treatment projects during the year 2004. A groundwater remediation project was selected to present in this record of study for my Doctor of Engineering degree not only because I spent more time on it than any other project, but also because it represents the broadness and depth of a typical URS remediation project. In this report, findings from previous environmental investigations were summarized and used for computer modeling and remediation strategy evaluation. Computer models were used to simulate site conditions and assist in remedy design for the site. Current pump-and-treat systems were evaluated by the model under various scenarios. Recommendations were made for the pump-and-treat system to control the contaminant plume. Various remediation technologies were evaluated and compared for their applicability at the site. A combination of on-site remediation and downgradient plume control was chosen as the site remediation strategy. Treatability studies and additional modeling work are needed for the remediation system design and optimization
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
Optimizing a Dynamic Outpatient Facility System with Multiple Servers
No full textThe management of queues is a complex problem, and it requires special attention in dynamic environments where information changes over time. This work focuses on an outpatient facility system where patients are attended by identical parallel servers offering different services. Each patient requires service and expects to receive it within a given target time, after which, a tardiness is created. The objective of the problem is to minimize the total tardiness while defining which services each server will offer during the working hours. The arrival of patients is dynamic, and the server’s configurations of services can be updated from time to time. To solve the problem, we propose a local search-based heuristic that locally assigns a configuration to each server based on the improvement reached in terms of total tardiness. The heuristic is tested on realistic instances, considering different settings, showing its superiority over the solution currently implemented on the facility system
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