141,529 research outputs found
An Interview with Joseph D. Novak
No full textJoseph Novak’s career in teaching has spanned over four
decades; he is now professor emeritus of Education and Biology
at Cornell University, visiting senior scientist at the
University of West Florida Institute for Human and Machine
Cognition, and president of Joseph D. Novak Knowledge
Consultants, Inc. He is the author of 26 books, including
Learning How To Learn (1), translated into 9 languages; 29
book chapters; and over 100 articles published in professional
journals. He has consulted for several corporations, federal
agencies, and for more than 400 schools and colleges in the
U.S.A. and abroad. In July 1995 Professor Novak resigned
from active teaching at Cornell and subsequently has been
working with corporations using concept mapping for research
and development efforts to create and transfer knowledge
and information in corporate environments; he also
teaches clients how use concept mapping to capture and
archive expert knowledge. Perhaps this interview will capture
some of his expert knowledge for Journal readers
Novak Hunt and Shields
No full textRobert Novak and Mark Shields interview with Trent Lott. Topics discussed: Homeland Security Act of 2002; weapons of mass destruction; U.S. foreign relations with Iraq; the economy; and unemployment
Nemastoma bidentatum subsp. martensi Novak & Novak & Kozel & Schaider & Komposch & Lipovšek & Podlesnik & Paušič & Raspotnig 2021, ssp. nov.
No full textNemastoma bidentatum martensi ssp. nov. × N. bidentatum schmidti ssp. nov. Figs 3, 9O Nemastoma (Stridulostoma) seliskari Hadži, 1973a: 48, figs 33c, 37a−e. Nemastoma bidentatum bidentatum – Martens 1978: 107 [partim: Nemastoma (Stridulostoma) seliskari Hadži, 1973]. Nemastoma bidentatum bidentatum × N. bidentatum sparsum – Novak & Gruber 2000: 286 [partim: Novo mesto, Mt. Mirna gora]. Nemastoma bidentatum pluridentatum – Schönhofer 2013: 36 [partim: Nemastoma (Stridulostoma) seliskari Hadži, 1973, and Nemastoma seliskari Hadži, 1973]. Diagnosis Typical male hybrids with Ch basal article with large hump in front of dorsal indentation, Ch-Apo with knee-like frontal flexion and narrowly drawn out upper portion, Pa-Fe club-shaped, but thinner than in N. b. schmidti ssp. nov., with four simple, equidistant ventral spines in distal Pa-Fe half, and Pa-Ti with minute hump. Material examined SLOVENIA – VL15 • 1 ♂; Prelože pri Lokvi; 27 Sep. 2011; L. Slana Novak and T. Novak leg. (310/2011); PMSL. – VL35 • 3 ♂♂, 5 ♀♀; Ribnica – Ostrožno Brdo; 27 Sep. 2011; L. Slana Novak and T. Novak leg. (324/2011, rev. 2015); PMSL. – VL53 • 1 ♂; Zabiče; 27 Sep. 2011; L. Slana Novak and T. Novak leg. (301/2011, rev. 2015); PMSL. – WL05 • 1 ♂; Mt. Mirna gora; 28 Jul. 1948; A. Seliškar leg; PMSL. – WL17 • 1 ♂; Novo Mesto; Karaman leg. (107/1983 microscopic preparation, JH det., TN rev. 2017); PMSL. Remarks In Hadži’s original preparation, labelled “ Nemastoma bidentatum Roewer pulli”, with two cover glasses on the same microscope slide, there are two males and a female. One male corresponds to the type specimen of Nemastoma (Stridulostoma) seliskari Hadži, 1973 (Hadži 1973a). For this species, Hadži (ibid.) founded a new subgenus Stridulostoma based on the existence of an alleged “stridulatory organ” on the Fe III (Hadži 1973a: figs 37č–d). Gruber (1976: 797) explained that the stridulatory organ alone does not justify establishing of a new subgenus, especially because this new species differs from N. (Lugubrostoma) triste pluridentatum Hadži, 1973 exclusively by possession of this organ, and accordingly, synonymized Stridulostoma with Nemastoma. Following these remarks, Schönhofer (2013: 36) synonymized N. seliskari with N. b. pluridentatum. We found that the portion of the Fe III, identified by Hadži (1973a) as a stridulatory organ in the type specimen, is in fact a depression-damage, caused by desiccation. Moreover, such damage is present in nearly all (sic!) the other femora of this freshly moulted specimen, but nothing resembles the fine lamellated structure shown in Hadži’s drawing (1973a: figs 37č–d). No similar structure was found in the specimens of Nemastoma collected later on Mt. Mirna gora. One might imagine that a careless inspection under a microscope at low magnification could result in the illusion of a ʻstridulatory organʼ. However, the drawing of its lamellae cannot be considered anything but a pure fabrication. Moreover, Pa-Fe in Hadži (1973a: fig. 33c), being under the same cover glass in the preparation, belongs to the same specimen, although Hadži (ibid.) ascribed it to N. (Lugubrostoma) triste pluridentatum. See remark under N. pluridentatum stat. nov.Published as part of Novak, Tone, Novak, Ljuba Slana, Kozel, Peter, Schaider, Miriam Gudrun, Komposch, Christian, Lipovšek, Saška, Podlesnik, Jan, Paušič, Igor & Raspotnig, Günther, 2021, Hidden diversity within the Nemastoma bidentatum Roewer, 1914 complex (Opiliones: Nemastomatidae) Part I: Morphological evidence, pp. 1-67 in European Journal of Taxonomy 777 on pages 45-46, DOI: 10.5852/ejt.2021.777.1561, http://zenodo.org/record/563711
Metal plasticity and fatigue at high temperature
No full textThe situation in which a component or structure is maintained at high temperature under the action of cyclic thermal and/or mechanical loadings represents, perhaps, one of the most demanding engineering applications—if not, in fact, the most demanding one. Examples can be found in many industrial fields, such as automotive (cylinder head, engine, disk brakes), steel-making (hot rolling), machining (milling, turning), aerospace (turbine blades), and fire protection systems (fire doors). The presence of high temperatures usually induces some amount of material plasticity or creep deformation in the most stressed regions of the structure. Plasticity, if combined with the action of cyclic loading variation, may lead to low-cycle fatigue (LCF) failure. In order to estimate the component fatigue life in such demanding operative condition, it is often necessary to characterize the high-temperature material behavior under cyclic loading, in terms, for example, of cyclic stress–strain response, strain hardening or softening, creep behavior, experimental fatigue strength under isothermal and/or non-isothermal conditions. Moreover, it is also necessary to develop a reliable structural durability approach that is able to include experimental results in numerical and/or predictive models (e.g., plasticity models, fatigue strength curves). The choice of the most appropriate material model to be used in simulations, or even calibrating the model to experimental data, often represents the most critical step in the whole design approach. Experimental techniques and modeling have to be properly managed to guarantee the reliability of the estimated fatigue life
Use of different hardfacing methods to enhance wear resistance
No full textNavarjanje je pomemben postopek povečevanja obrabne obstojnosti strojnih delov. V magistrski nalogi sta predstavljena postopka navarjanja z MAG tehnologijo in s PTA tehnologijo. Izvedli smo navarjanje z dodajnimi materiali, ki so trenutno v uporabi v podjetju Farmtech d. o. o., in jih primerjali z novima za uporabo s PTA in MAG tehnologijo. Za primerjavo smo izvedli test obstojnosti proti obrabi, meritev trdot v prerezu talonov in meritev površin namešanja. To smo nadgradili tudi s stroškovno in časovno analizo. Rezultati bodo služili kot smernice za odločitev k implementiranju PTA tehnologije v obstoječo proizvodnjo.Overlay welding is an important process for increasing the wear resistance of machine parts. In the master’s thesis, two welding processes are presented with MAG technology and PTA technology. We carried out welding with additive materials, which are currently in use in the company Farmtech d. o. o., and compared them with new ones for use with PTA and MAG technology. For comparison, we carried out a wear resistance test, hardness measurement in the cross-section of the samples, and measurement of mixing areas. We also upgraded this with a cost and time analysis. The results will serve as guidelines for the decision to implement PTA technology in existing production
Novak, Josef (28.02.1879-29.12.1983; Geburtshilfe, Gynakologie); 1935
No full textsign. F 35
Unterschrift: Prof D Josef Novak
http://scopeq.cc.univie.ac.at/Query/detail.aspx?id=3673
INTERNET APPLICATION FOR INTERACTIVE KNOWLEDGE EXAMINATION
No full textV diplomski nalogi bom izdelal in predstavil didaktični pripomoček za učitelje – aplikacijo, ki omogoča izdelavo testov znanja z nalogami objektivnega tipa. Aplikacija mora omogočati preverjanje znanja učencev preko spleta.
Diplomsko nalogo bom izvedel v treh delih. V prvem delu naloge bom opisal komponente vseh grafičnih vmesnikov, ki sem jih uporabil v aplikaciji, v drugem delu pa bom pozornost posvetil odprtokodni tehnologiji Hibernate, ki omogoča upravljanje trajnih podatkov v Javi. Na primeru aplikacije bom razložil preslikavo javanskih objektov v tabele relacijske podatkovne baze MySQL z uporabo knjižnjice JPA. Razložil bom tudi, kako se Hibernate namesti in zažene v okolju Java in opisal vse osnovne vmesnike, ki so potrebni za delo z entitetami. V tretjem delu naloge bom predstavil porazdeljeni objektni sistem RMI, ki je vgrajen v jedro okolja Java in nam omogoča komuniciranje z objekti, ki se izvajajo v navideznih strojih na oddaljenih gostiteljih.
Diplomsko nalogo bom zaključil s prikazom implementacij vseh ključnih razredov, ki sem jih uporabil pri izdelavi aplikacije.In this thesis I construct and present my own didactic tool for teachers – a computer application which enables teachers to construct their own knowledge examination tests using the objective type tasks. The application supports testing via Internet.
This thesis falls into three parts. In the first part I describe the necessary components of all graphical user interfaces, which were used in the application, their functions and enclose user manual. In the second part I draw my attention to Hibernate open source technology which enables management of persistent data in Java. Based on this application I will explain the mapping of Java objects into the tables of relational database MySQL, using the JPA library. I also explain how to install and run Hibernate in Java environment and describe all basic interfaces, necessary for working with entities. In the third part I present distributed object model RMI that is built into the core Java environment and allows us to interact with objects that are actually running in Java virtual machines on remote hosts.
I conclude my thesis with a review of all key class implementations used in the process of application development
Nemastoma pluridentatum Novak & Novak & Kozel & Schaider & Komposch & Lipovšek & Podlesnik & Paušič & Raspotnig 2021, stat. nov.
No full textNemastoma pluridentatum (Hadži, 1973) stat. nov. Novak Figs 2, 4D, 5D, 6D, 9D, 10D, 12D; Table 7 Nemastoma (Lugubrostoma) triste pluridentatum Hadži, 1973a: 43, fig 33a (original description) [partim; the description also includes N. bidentatum schmidti ssp. nov., N. bidentatum gruberi ssp. nov. × N. bidentatum schmidti ssp. nov. and N. bidentatum martensi ssp. nov. × N. bidentatum schmidti ssp. nov.]. Nemastoma bidentatum bidentatum – Martens 1978: 107. Nemastoma ? bidentatum pluridentatum – Novak 2005a: 314, fig. 34. Nemastoma bidentatum pluridentatum – Schönhofer 2013: 36. Diagnosis (partly according to Hadži 1973a) Robust, short-legged member of the Nemastoma b. complex, with extremely stout Ch and Pa. Ch-Apo small, slightly trapezoid button-like, wider than high, with secretion field in frontal third. Pa-Tr nearly round, Pa-Fe and Pa-Pt very stout, Pa-Fe club-shaped, with 4 large, wide humps. Material examined Holotype BOSNIA AND HERZEGOVINA – YK10 • 1 ♂; Mt. Paljenik, Vlašić planina Mts; 1933 m a.s.l.; 18 Jun. 1962; E. Pretner leg. (4/2005, JH’s microscopic preparation); PMSL. (Note: UTM code in Novak (2005a) was erroneously cited as YJ19.) Partial redescription Note: male body and penis missing; female unknown. Male (holotype) CHELICERAE. Ch basal article length (without Apo) 0.57, stout, 1.8 times as long as wide at Ch max width at dorsal hump, distally rounded. Ch-Apo rounded low trapezoid, with longest margin distally, secretion field frontally. Distal article length 0.57, max width 0.26, movable finger length 0.28 (Figs 4D, 6D, 9D). PEDIPALPS. Pa stout, Pa-Fe extremely stout, with 4 large, bulky humps (instead of spines), club-shaped (Pa-Fe min:max width ~ 1:3.6), Pa-Pt extremely stout (length:max width ~1:2.8) (Figs 5D, 6D). Pa article lengths in Table 7. LEGS. Pseudoarticle leg-Fe formula I−IV: 0−2−1−2. Tarsomere formula I−IV: 8−13−5−8. Leg article lengths in Table 7. Remarks Under the name Nemastoma (Lugubrostoma) triste pluridentatum, Hadži (1973a) described four taxa: a) N. pluridentatum (Hadži, 1973) stat. nov. (Hadži 1973a: fig. 33a) from Mt. Paljenik (1943 m a.s.l.) in the Vlašić Mts, Bosnia, b) a hybrid N. b. gruberi ssp. nov. × N. b. schmidti ssp. nov. (Hadži 1973a: fig. 33b, č) from the surroundings of Novo mesto, Slovenia, c) a hybrid N. b. martensi ssp. nov. × N. b. schmidti ssp. nov. (Hadži 1973a: fig. 33c) from the surroundings of Novo mesto, which Hadži (ibid.) erroneously cited for Mt. Vlašić, and d) Nemastoma b. schmidti ssp. nov. from Mt. Šmarna gora, Slovenia (Hadži 1973a: fig. 34a), from the surroundings of Ljubljana (Hadži 1973a: fig. 34b), and from the cave Jama Sv. Janeza pri Prestranku near Postojna, Slovenia (Hadži 1973a: fig. 34c). Figs 33 and 34 were drawn freehand; consequently, shapes and dimensions only partly correspond to the real measurements. Hadži’s original microscopic preparation labeled “ Nemastoma bidentatum Roewer pulli, A-1065 (Novo Mesto), legit Karaman” includes two males and a female, but no juveniles. Hadži (ibid.) drew some details of the males, including damaged legs; see remarks on Nemastoma (Stridulostoma) seliskari Hadži, 1973 under N. b. martensi ssp. nov. × N. b. schmidti ssp. nov. Given that some important parts, e.g., Pa of one male, are missing, Hadži probably made this incomplete preparation after observation of the specimens under a microscope. In his original paper (Hadži 1973a), the type specimen and the type locality of N. pluridentatum stat. nov. were not designated, but he did that in the catalogue (Hadži 1973b: 13) under a mistyped name: “ N. (L.) triste pleuridentatum Hadži, 1973 ”. There he wrote: “Loc. typ.: Novo mesto ”. Since the specimens from this locality belong to the above-mentioned hybrids, Novo mesto cannot be the type locality of N. pluridentatum stat. nov.; that is the first-mentioned location in Bosnia, as fig. 33a (Hadži 1973a) is the only drawing that refers to this taxon. Unfortunately, only the preparation of one Ch, one Pa and four legs of the male holotype are preserved, while the body, as well as a further male and female mentioned by Hadži (1973a: 44) are missing. Because of the lack of any information on the Pe, the saw on Fe IV in preserved legs is the only available character allowing us to place this taxon into the N. b. complex, interpreted as N. ? bidentatum pluridentatum (Novak 2005a: fig. 34) or N. b. pluridentatum (Schönhofer 2013). In 2019, we visited the type locality Mt. Paljenik, but we did not find further specimens of N. pluridentatum. Instead we found a new, much different N. kozari sp. nov. there, which unlikely hybridize with N. pluridentatum stat. nov. Consequently, we ascribed the species status to N. pluridentatum. See remarks under N. relictum stat. nov., N. kozari sp. nov. and hybrids N. b. gruberi ssp. nov. × N. b. schmidti ssp. nov. and N. b. martensi ssp. nov. × N. b. schmidti ssp. nov. Distribution Bosnia and Herzegovina, endemic to central Bosnia, probably endemic to the Vlašić Mts. Type locality: Mt. Paljenik in the Vlašić planina Mts, Bosnia, (44.29° N, 17.64° E, 1933 m a.s.l.), Bosnia and Herzegovina. Ecology Nemastoma pluridentatum stat. nov. inhabit the highest peak areas with the Mastgrass Gentianello crispatae-Nardetum strictae Redžić 1990 communities. Phenology: adults probably eurychronous.Published as part of Novak, Tone, Novak, Ljuba Slana, Kozel, Peter, Schaider, Miriam Gudrun, Komposch, Christian, Lipovšek, Saška, Podlesnik, Jan, Paušič, Igor & Raspotnig, Günther, 2021, Hidden diversity within the Nemastoma bidentatum Roewer, 1914 complex (Opiliones: Nemastomatidae) Part I: Morphological evidence, pp. 1-67 in European Journal of Taxonomy 777 on pages 18-20, DOI: 10.5852/ejt.2021.777.1561, http://zenodo.org/record/563711
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