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  1. World Energy Data System (WENDS). Volume X. Nuclear facility profiles, PO--ZA. [Brief tabulated information

    Energy Technology Data Exchange (ETDEWEB)

    1979-06-01

    In this compendium each profile of a nuclear facility is a capsule summary of pertinent facts regarding that particular installation. The facilities described include the entire fuel cycle in the broadest sense, encompassing resource recovery through waste management. Power plants and all US facilities have been excluded. To facilitate comparison the profiles have been recorded in a standard format. Because of the breadth of the undertaking some data fields do not apply to the establishment under discussion and accordingly are blank. The set of nuclear facility profiles occupies four volumes; the profiles are ordered by country name, and then by facility code. Each nuclear facility profile volume contains two complete indexes to the information. The first index aggregates the facilities alphabetically by country. It is further organized by category of facility, and then by the four-character facility code. It provides a quick summary of the nuclear energy capability or interest in each country and also an identifier, the facility code, which can be used to access the information contained in the profile.

  2. Pokretanje doma za starije i nemoćne u Požeško-slavonskoj županiji

    OpenAIRE

    Asančaić, Ana; Plazibat, Olga; Vukoja, Ivan; Vukoja, Marko

    2015-01-01

    Poslovni pothvat izgradnje doma za starije i nemoćne osobe u Požeško-slavonskoj županiji temelji se na demografskom trendu starenja stanovništva i povećanog iseljavanja mladih. Uočena je povećana potreba za odgovarajućim oblicima smještaja starijih i nemoćnih osoba, koji bi korisnike zadovoljavali kvalitetom sadržaja. Na osnovi Porterovog modela pet konkurentskih snaga pokazalo se da je industrija usluge smještaja u dom umjereno atraktivna; za ulazak novih pothvata, zbog prijetnje od ulaska n...

  3. RAZVOJ UPORABNIŠKO PRIJAZNE INFORMACIJSKE REŠITVE ZA ERGONOMSKO ANALIZO PO METODI OWAS

    OpenAIRE

    Kebe, Jaka

    2014-01-01

    Obravnavani problem diplomske naloge se dotika metode v ergonomiji za ocenjevanje in analizo obremenitve telesnih segmentov zaposlenih na delovnem mestu. Metoda OWAS, ali tuje Ovako Working Posture Analysing System, je ena izmed pogosto uporabljenih metod. Metoda OWAS je univerzalna metoda za določanje preobremenjenosti segmentov človekovega gibalnega sistema. Metoda skrbi za ergonomsko analizo, vendar do sedaj še nismo zasledili ergonomsko ustreznega računalniškega programa, ki bi olajšal iz...

  4. Konstrukcija i dizajn kontejnerskog vozila za gašenje požara vodom i pjenom

    OpenAIRE

    Župančić, Igor

    2011-01-01

    Kontejnerska vozila predstavljaju novitet među vatrogasnim vozilima. Osnovna karakteristika ovih vozila je u tome da se vatrogasni kontejner postavlja na specijalno podvozje pomoću trajno ugrađenog hidrauličnog krana. Tako se vatrogascima omogućuje efikasna zašita ili gašenje požara sa samo jednim podvozjem i s nekoliko specijalnih kontejnera u vatrogasnoj postrojbi. Broj i vrsta kontejnera koji se mogu «navlačiti « na isto podvozje ograničeni su samo nosivošću podvozja i «navlakača», a odr...

  5. Palubní počítač na mobilním zařízení

    OpenAIRE

    Kubík, Lukáš

    2012-01-01

    Téma bakalářské práce studuje možnosti využití dat z diagnostického OBD-II portu automobilů a senzorů mobilního zařízení s operačním systémem Android. Poukazuje na výpočet nových veličin ze získaných dat a hlavní část bakalářské práce popisuje návrh a implementaci aplikace využívající nově spočítané veličiny ve třech funkcionalitách. This bachelor thesis studies the possibility of using the output data from diagnostic automotive OBD-II port and several sensors of a mobile device with Andro...

  6. počtová analýza tuhosti rozváděcího mechanizmu turbodmychadla

    OpenAIRE

    2013-01-01

    Tato diplomová práce pojednává o využití pevnostních výpočtů rozváděcího mechanismu turbodmychadla v Multi Body systému ADAMS s využitím pružných těles a jejich korelace s konečno-prvkovým systémem ANSYS. Dále je uvedeno porovnání výpočtů v programu ADAMS s optickým testem. Na začátku též práce pojednává o turbodmychadlech a způsobech jejich regulace. This diploma thesis deals about possibilites of using stiffness analysis in Multi body system ADAMS with Flexible bodies and its correlation...

  7. Constructional Profile of the Verbal Prefix ZA-: A Comparative Study of Russian and Polish

    Directory of Open Access Journals (Sweden)

    Wojciech Lewandowski

    2011-02-01

    Full Text Available In this paper we investigate the semantic and syntactic properties of the prefix ZA- in Russian and Polish against the background of the Locative Alternation. We provide lists of alternating verbs for Russian and Polish and examine their occurrences with the prefix ZA- as presented in the Russian National Corpus and the Polish National Corpus. While the literature on the prefix ZA- mainly offers semantic analysis, we look at the “constructional profile” of ZA-, i.e. the relative frequency distribution of the two locative constructions for each ZA-verb. Our data suggest that there are both similarities and differences in the syntactic behavior of the corresponding ZA-verbs in Russian and Polish, although in general there is a strong tendency for ZA- to be used in the Goal-Object construction. We provide evidence that both constructions are possible with verbs like ‘hang’ and ‘pour’, which, according to lexical approaches, should not alternate. Our study fortifies the idea that prefixes and constructions correlate and that the Locative Alternation is construction-driven. The data analyzed also indirectly supports the classification of alternating verbs as “manner”, “path” and “hybrid”.

  8. SISTEM ZA NADZOR PROMETA IPTV

    OpenAIRE

    2013-01-01

    V diplomski nalogi bom predstavil sistem za nadzor prometa IPTV v telekomunikacijskem omrežju s pomočjo IPTV sond, ki nadzorujejo promet IPTV od dobavitelja signala pa vse do končnega uporabnika. V prvem delu sta opis in struktura elementov za delovanje IPTV, namenjenega za prenos signala od izvora do uporabnika storitev. Predstavljeni so standardi in mehanizmi stiskanja podatkov, pregled protokolov za prenos podatkov po omrežju ter elementi in arhitektura IPTV. V osrednjem delu naloge se bom...

  9. RAZVOJ TRANSPORTNE PRIKOLICE ZA KOLO

    OpenAIRE

    Zupanc, Tomaž

    2010-01-01

    Diplomsko delo opisuje razvoj transportne prikolice za kolo, namenjene veliki množici kolesarjev, tistim, ki jo bodo uporabljali v vsakodnevne namene, pa tudi kolesarjem z avanturistično žilico za potovanja po širnem svetu. V uvodnih delih diplomskega dela so opisani načini transporta, nato prihodnost transporta z ekološkega pogleda in pa pregled obstoječih izdelkov na trgu. Cilji diplomskega dela so: razviti všečno, ergonomsko sprejemljivo prikolico za kolo, ki bi poleg funkcije transport...

  10. A Facile Route for Synthesis of LiFePO4/C Cathode Material with Nano-sized Primary Particles

    Institute of Scientific and Technical Information of China (English)

    肖政伟; 胡国荣; 杜柯; 彭忠东

    2014-01-01

    A facile and practical route was introduced to prepare LiFePO4/C cathode material with nano-sized primary particles and excellent electrochemical performance. LiH2PO4 was synthesized by using H3PO4 and LiOH as raw materials. Then, as-prepared LiH2PO4, reduced iron powder andα-D-glucose were ball-milled, dried and sin-tered to prepare LiFePO4/C. X-ray diffractometry was used to characterize LiH2PO4, ball-milled product and LiFePO4/C. Differential scanning calorimeter-thermo gravimetric analysis was applied to investigate possible reac-tions in sintering and find suitable temperature for LiFePO4 formation. Scanning electron microscopy was em-ployed for the morphology of LiFePO4/C. As-prepared LiH2PO4 is characterized to be in P21cn(33) space group, which reacts with reduced iron powder to form Li3PO4, Fe3(PO4)2 and H2 in ball-milling and sintering. The appro-priate temperature for LiFePO4/C synthesis is 541.3-976.7 °C. LiFePO4/C prepared at 700 °C presents nano-sized primary particles forming aggregates. Charge-discharge examination indicates that as-prepared LiFePO4/C displays appreciable discharge capacities of 145 and 131 mA·h·g-1 at 0.1 and 1 C respectively and excellent discharge ca-pacity retention.

  11. Priprava 3D modelov za 3D tisk

    OpenAIRE

    2015-01-01

    Po mnenju nekaterih strokovnjakov bo aditivna proizvodnja (ali 3D tiskanje) spremenila proizvodnjo industrijo, saj si bo vsak posameznik lahko natisnil svoj objekt po želji. V diplomski nalogi so predstavljene nekatere tehnologije aditivne proizvodnje. V nadaljevanju diplomske naloge je predstavljena izdelava makete hiše v merilu 1:100, vse od modeliranja do tiskanja. Poseben poudarek je posvečen predelavi modela, da je primeren za tiskanje, kjer je razvit pristop za hitrejše i...

  12. Enrichment and vertical profiles of 210Po and 210Pb in monazite areas of coastal Karnataka.

    Science.gov (United States)

    Narayana, Y; Prakash, V

    2010-06-01

    A study on radiation level and radionuclide distribution in the environment of coastal Karnataka has revealed the presence of low-level monazite deposit in the Ullal beach area. The paper presents systematic studies on the distribution, enrichment and vertical profiles of (210)Po and (210)Pb, important daughter products of (238)U, in Ombattu Kere, Summer Sand and the Bhagavathi Temple region of the Ullal beach area of coastal Karnataka. Sand samples collected at different depths from these locations were analyzed for (210)Po and (210)Pb activities to understand the distribution, enrichment and vertical profiles of these radionuclides in monazite area. The activity of (210)Po in the Ullal region is found to vary from 1.7 to 43.2 Bq kg(-1) with a mean value of 11.2 Bq kg(-1) and that of (210)Pb varies from 1.0 to 66.7 Bq kg(-1) with a mean value of 19.1 Bq kg(-1). The mean (210)Po/(210)Pb ratio was observed to be 0.6. The absorbed gamma dose rate in the region varies in the range 39-460 nGy h(-1) with a mean value of 193 nGy h(-1).

  13. PROOF-based analysis on the ATLAS Grid facilities: first experience with the PoD/PanDa plugin

    Science.gov (United States)

    Vilucchi, E.; De Salvo, A.; Di Donato, C.; Di Nardo, R.; Doria, A.; Ganis, G.; Manafov, A.; Mancini, G.; Mazza, S.; Preltz, F.; Rebatto, D.; Salvucci, A.; Sanchez Pineda, A. R.

    2014-06-01

    In the ATLAS computing model Grid resources are managed by PanDA, the system designed for production and distributed analysis, and data are stored under various formats in ROOT files. End-user physicists have the choice to use either the ATHENA framework or directly ROOT, that provides users the possibility to use PROOF to exploit the computing power of multi-core machines or to dynamically manage analysis facilities. Since analysis facilities are, in general, not dedicated to PROOF only, PROOF-on-Demand (PoD) is used to enable PROOF on top of an existing resource management system. In a previous work we investigated the usage of PoD to enable PROOF-based analysis on Tier-2 facilities using the PoD/gLite plug-in interface. In this paper we present the status of our investigations using the recently developed PoD/PanDA plug-in to enable PROOF and a real end-user ATLAS physics analysis as payload. For this work, data were accessed using two different protocols: XRootD and file protocol. The former in the site where the SRM interface is Disk Pool Manager (DPM) and the latter where the SRM interface is StoRM with GPFS file system. We will first describe the results of some benchmark tests we run on the ATLAS Italian Tier-1 and Tier-2s sites and at CERN. Then, we will compare the results of different types of analysis, comparing performances accessing data in relation to different types of SRM interfaces and accessing data with XRootD in the LAN and in the WAN using the ATLAS XROOTD storage federation infrastructure.

  14. Computer Profile of School Facilities Energy Consumption.

    Science.gov (United States)

    Oswalt, Felix E.

    This document outlines a computerized management tool designed to enable building managers to identify energy consumption as related to types and uses of school facilities for the purpose of evaluating and managing the operation, maintenance, modification, and planning of new facilities. Specifically, it is expected that the statistics generated…

  15. Načrtovanje virtualne in realne robotske celice za navarjanje z ATIG postopkom z robotom ACMA XR701

    OpenAIRE

    Leskovar, Jure

    2015-01-01

    Magistrsko delo obsega najprej akcije, ki so potrebne za vzpostavitev robota ACMA XR701 za potrebe navarjanja. Najprej je bilo potrebno skonstruirati držalo varilnega gorilnika in pripravo za formiranje korena zvarnih spojev (zaščito korena). Slednja omogoča tudi zvezno nastavitev po višini, kar omogoča nastavljanje dolžine obloka pri navarjanju. Sledilo je ročno programiranje robota od točke do točke za potrebe navarjanja. Prav tako se je robot programiral v virtualnem krmilniku in od tu se ...

  16. SISTEM ZA ZAZNAVANJE PREMIKOV Z VLAKENSKIM MICHELSONOVIM INTERFEROMETROM

    OpenAIRE

    Hribar, Jernej

    2016-01-01

    Magistrsko delo opisuje senzorski sistem, ki je namenjen zaznavanju premikov ljudi po nadzorovanem območju. Podrobno je opisano teoretično ozadje in pa praktična izvedba takšnega sistema. Predstavljeni so tudi rezultati in smernice za nadaljnje delo.

  17. Palijativna skrb za djecu

    OpenAIRE

    Grbac, Josip; Štajduhar, Iva

    2013-01-01

    Pedijatrijska palijativna skrb aktivna je i potpuna skrb za bolesnu djetetovu osobu; njegovu somatsku, psihičku i umno-duhovnu dimenziju. Ona kao posebna medicinska specijalizacija, usko povezana s palijativnom skrbi za odrasle, povezuje ključne čimbenike palijativne skrbi s pedijatrijskom kliničkom praksom u cilju poboljšanja kvalitete posljednje faze djetetova života. Kod bolesna djeteta ovu vrstu skrbi potrebno je primijeniti već s dijagnozom oboljenja. Palijativni tretman usmjerava se ...

  18. PROOF-based analysis on the ATLAS Grid facilities: first experience with the PoD/PanDa plugin

    CERN Document Server

    Vilucchi, E; The ATLAS collaboration; Di Donato, C; Di Nardo, R; Doria, A; Ganis, G; Manafov, A; Mancini, G; Mazza, S; Preltz, F; Rebatto, D; Salvucci, A; Pineda, A S

    2014-01-01

    In the ATLAS computing model Grid resources are managed by the PanDA system, a data-driven workload management system designed for production and distributed analysis. Data are stored under various formats in ROOT files and end-user physicists have the choice to use either the ATHENA framework or directly ROOT. The ROOT way to analyze data provides users the possibility to use PROOF to exploit the computing power of multi-core machines or to dynamically manage analysis facilities. Since analysis facilities are, in general, not dedicated to PROOF only, PROOF-on-Demand (PoD) is used to enable PROOF on top of an existing resource management system.\

  19. 一种高效低成本的工业合成LiFePO4优化方法%A Facile and Low-Cost Industrial Method to Optimize LiFePO4

    Institute of Scientific and Technical Information of China (English)

    何伟东; 梁亚春; 刘净纳; 谈超; 饶高峰

    2016-01-01

    In this paper, nano-FePO4 was synthesized using industrial iron waste water, (NH4)2HPO4, and citric acid as chelating agent. The size and morphology of FePO4were characterized by scanning electron microscopy (SEM), indicating that the FePO4 nanoparticles were well dispersed. LiFePO4was prepared by a carbothermal reduction method utilizing the FePO4nanoparticles and the structure was analyzed by X-ray diffraction (XRD), demonstrating the LiFePO4was of high purity and owns an olivine structure. The electrochemical performance of LiFePO4 was investigated by galvanostatic charge/discjharge. The LiFePO4 synthesized by FePO4 modified by citric acid showed a high discharge capacity of 141 mAh.g−1at the 0.1 C rate. The cycle performance of LiFePO4 was good at different rate test of 0.1 C, 0.2 C, 0.5 C and 1 C. This favored electrochemical performance was attributed to the size-reduced LiFePO4particles and uniform carbon coating layer. The low-cost starting material and facile synthetic method are promising for practical applications.%该文以废铁水为铁源,(NH4)2HPO4为磷源,柠檬酸为螯合剂合成FePO4。通过电子扫描显微镜(SEM)观察到与没有加入柠檬酸改性的FePO4相比,可以明显减小FePO4颗粒的尺寸(纳米级),减少团聚,增强分散性。以自制的纳米级FePO4、Li2CO3、C12H22O11为原料,利用碳热还原法合成LiFePO4。通过X射线衍射(XRD)分析材料的结构,表明合成的材料为橄榄石结构且结晶度好。并组装成扣式电池研究前驱体FePO4的尺寸形貌对正极材料电化学性能的影响。研究了利用柠檬酸修饰的FePO4合成的LiFePO4,在0.1 C倍率下放电比容量为141 mAh.g−1。经过倍率循环测试表明,材料仍具有很好的循环稳定性能。这些性能的改善都源自于合成LiFePO4材料尺寸的减小及均匀的碳包覆。该文提供的合成方法不但原料廉价,而且工艺简单,还具有十分重要的实际应用价值。

  20. Bibliografija Elze Jereb za obdobje 1965-2015

    Directory of Open Access Journals (Sweden)

    Metka Šorli

    2015-12-01

    Full Text Available Pri izdelavi bibliografije mag. Elze Jereb so mi bili v oporo bibliografski zapisi v cobissu (73 od 152 enot, med drugim tudi pri iskanju originalnih besedil, dostopnih v Osrednji humanistični knjižnici Filozofske fakultete, NUK-u in drugih slovenskih knjižnicah. Kljub želji po čim izčrpnejši predstavitvi profesoričinega opusa bibliografija ni popolna.* Zavestno so izvzeti številni predmetni izpitni katalogi za tuje jezike, kjer je sodelovala pri redakciji splošnega besedila, ter vsi ponatisi izdaj. Vrsto let je bila soavtorica predmetnih izpitnih katalogov za maturo iz francoščine (izdaje v letih 1993-2008 za maturo 1995-2010 ter glavna urednica dveh publikacij, revije Vestnik za tuje jezike in književnosti (1982-1988 in skupaj z Dragom Druškovičem - Livre slovène (1976-1981, kar ni vključeno v spodnji, po letnicah urejeni prikaz. Iz slednjega se je prav gotovo izmuznil še kak profesoričin prispevek (npr. nekateri prevodi, gradivo za seminarje, namenjene osnovnošolskim in srednješolskim profesorjem francoščine ter prevajalcem.

  1. Graphene oxide assisted facile hydrothermal synthesis of LiMn0.6Fe0.4PO4 nanoparticles as cathode material for lithium ion battery

    Institute of Scientific and Technical Information of China (English)

    Changchang Xu; Li Li; Fangyuan Qiu; Cuihua An; Yanan Xu; Ying Wang; Yijing Wang; Lifang Jiao; Huatang Yuan

    2014-01-01

    Assisted by graphene oxide (GO), nano-sized LiMn0.6Fe0.4PO4 with excellent electrochemical performance was prepared by a facile hy-drothermal method as cathode material for lithium ion battery. SEM and TEM images indicate that the particle size of LiMn0.6Fe0.4PO4 (S2) was about 80 nm in diameter. The discharge capacity of LiMn0.6Fe0.4PO4 nanoparticles was 140.3 mAh·g-1 in the first cycle. It showed that graphene oxide was able to restrict the growth of LiMn0.6Fe0.4PO4 and it in situ reduction of GO could improve the electrical conductivity of LiMn0.6Fe0.4PO4 material.

  2. Enrichment and vertical profiles of {sup 210}Po and {sup 210}Pb in monazite areas of coastal Karnataka

    Energy Technology Data Exchange (ETDEWEB)

    Narayana, Y. [Department of Studies in Physics, Mangalore University, Mangalagangothri 574199 (India)], E-mail: narayanay@yahoo.com; Prakash, V. [Department of Studies in Physics, Mangalore University, Mangalagangothri 574199 (India)

    2010-06-15

    A study on radiation level and radionuclide distribution in the environment of coastal Karnataka has revealed the presence of low-level monazite deposit in the Ullal beach area. The paper presents systematic studies on the distribution, enrichment and vertical profiles of {sup 210}Po and {sup 210}Pb, important daughter products of {sup 238}U, in Ombattu Kere, Summer Sand and the Bhagavathi Temple region of the Ullal beach area of coastal Karnataka. Sand samples collected at different depths from these locations were analyzed for {sup 210}Po and {sup 210}Pb activities to understand the distribution, enrichment and vertical profiles of these radionuclides in monazite area. The activity of {sup 210}Po in the Ullal region is found to vary from 1.7 to 43.2 Bq kg{sup -1} with a mean value of 11.2 Bq kg{sup -1} and that of {sup 210}Pb varies from 1.0 to 66.7 Bq kg{sup -1} with a mean value of 19.1 Bq kg{sup -1}. The mean {sup 210}Po/{sup 210}Pb ratio was observed to be 0.6. The absorbed gamma dose rate in the region varies in the range 39-460 nGy h{sup -1} with a mean value of 193 nGy h{sup -1}.

  3. Metode izbora oblika zuba za mobilne proteze

    OpenAIRE

    2001-01-01

    U radu su opisane različite metode koje pomažu izboru umjetnih zuba za potpune proteze. Prva je poznata teorija još iz prošloga stoljeća, a temelji se na Hipokratovoj podjeli temperamenta na neurotične, sangvinične, bilijarne i astenične tipove, pri čemu svakom temperamentu odgovara određen oblik zuba. Tu je teoriju istisnula geometrijska teorija Leona Williamsa (početak prošloga stoljeća) koja povezuje oblik lica i oblik zuba. Prema Williamsu, konturna linija gornjih središnjih sjekutića uma...

  4. VAŽNOST I UTJECAJ USLUGA ZA KARIJERU U PRIPREMI STUDENTATA PRIŠTINSKOG SVEUČILISTA ZA TRŽIŠTE RADA

    OpenAIRE

    Beka, Arlinda; Nikoçeviq, Elmedina

    2012-01-01

    Razvoj karijere studenata Sveučilišta u Prištini je vrlo važan i potreban faktor za njihovu profesionalnu pripremu. Do prije 7 godina, studentima se nije nudila bila kakva pomoć u savjetovanju ili bila koja praktična pomoć koja bi im pomogla u profesionalnoj pripremi za tržište rada. S otvaranjem prvog Centra za razvoj karijere, na Sveučilištu u Prištini počelo je i podizanje svijesti studenata za razvoj karijere i istodobno, studenti su počeli da shvaćaju važnost profesionalne pripreme pr...

  5. Za kogo bolet budjem?

    Index Scriptorium Estoniae

    2005-01-01

    Ajalehe Den za Dnjom toimetuses toimunud noorte poliitikute vestlusringis arutleti küsimuste üle, mis on ajendatud Eesti kultuuritegelaste pöördumisest seoses Eesti süüdistamisega Venemaa poolt inimõiguste pidevas rikkumises

  6. UPORABA TEHNOLOGIJ ZA ZAGOTAVLJANJE REVIZIJSKE SLEDI V PRODUKTIH ORACLE

    OpenAIRE

    Arko, Samo

    2015-01-01

    V diplomski nalogi smo se osredotočili na ranljivost in varovanje občutljivih podatkov v podatkovnih bazah. Natančneje kako nam tehnologija Oracle Database Vault omogoča zavarovanje dostopa do teh podatkov. V začetku smo predstavili podatkovne baze in njihove največje nevarnosti. Nato smo predelali zakone ter standarde na področju osebnih podatkov, potrebe po revizijski sledi in informacijski varnosti. V zaključku pa smo predelali tehnologije za varovanje podatkovnih baz in vodenje revi...

  7. Facile deposition of Ag{sub 3}PO{sub 4} on graphene-like MoS{sub 2} nanosheets for highly efficient photocatalysis

    Energy Technology Data Exchange (ETDEWEB)

    Wang, Peifu [College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090 (China); Shi, Penghui, E-mail: shipenghui@shiep.edu.cn [College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090 (China); Hong, Yuanchen; Zhou, Xuejun [College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090 (China); Yao, Weifeng, E-mail: yaoweifeng@shiep.edu.cn [College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090 (China); Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090 (China)

    2015-02-15

    Graphical abstract: The photocatalytic performance of Ag{sub 3}PO{sub 4} was highly improved by the in situ deposition of Ag{sub 3}PO{sub 4} particles on graphene-like MoS{sub 2} nanosheets. - Highlights: • A novel composite photocatalyst was synthesized by depositing Ag{sub 3}PO{sub 4} on the graphene-like MoS{sub 2} nanosheets. • Ag{sub 3}PO{sub 4}/MoS{sub 2} photocatalyst exhibited a high photocatalytic activity for RhB degradation. • Graphene-like MoS{sub 2} nanosheets. • MoS{sub 2} nanosheets play an important role in photocatalytic activity by serving as an effective acceptor of the photogenerated carriers. - Abstract: A facile method for the in situ deposition of Ag{sub 3}PO{sub 4} on graphene-like MoS{sub 2} nanosheets was developed to improve the photocatalytic performance of Ag{sub 3}PO{sub 4} catalysts. The heterostructure of Ag{sub 3}PO{sub 4}/MoS{sub 2} composites was characterized by using X-ray diffraction spectra (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The prepared Ag{sub 3}PO{sub 4}/MoS{sub 2} photocatalyst exhibited a much higher photocatalytic activity than that of Ag{sub 3}PO{sub 4} for the degradation of Rhodamine B (RhB) under visible light irradiation (>400 nm). The improved photocatalytic activity of Ag{sub 3}PO{sub 4}/MoS{sub 2} is attributed to the efficient separation of photogenerated electron–hole pairs in the composite. This result provides a new perspective on the design of high-performance photocatalysts which is promising for energy applications.

  8. An Electronic Pressure Profile Display system for aeronautic test facilities

    Science.gov (United States)

    Woike, Mark R.

    1990-01-01

    The NASA Lewis Research Center has installed an Electronic Pressure Profile Display system. This system provides for the real-time display of pressure readings on high resolution graphics monitors. The Electronic Pressure Profile Display system will replace manometer banks currently used in aeronautic test facilities. The Electronic Pressure Profile Display system consists of an industrial type Digital Pressure Transmitter (DPI) unit which interfaces with a host computer. The host computer collects the pressure data from the DPI unit, converts it into engineering units, and displays the readings on a high resolution graphics monitor in bar graph format. Software was developed to accomplish the above tasks and also draw facility diagrams as background information on the displays. Data transfer between host computer and DPT unit is done with serial communications. Up to 64 channels are displayed with one second update time. This paper describes the system configuration, its features, and its advantages over existing systems.

  9. Diplomatska zaštita

    OpenAIRE

    2012-01-01

    Članak je posvećen tradicionalnim načinima zaštite fizičkih osoba u slučaju povrede njihovih prava od strane stranih država, točnije, diplomatskoj zaštiti. Komisija za međunarodno pravo je 2006. godine dovršila Nacrt članaka o diplomatskoj zaštiti. Ovaj članak analizira Nacrt iz 2006. godine govoreći o tradicionalnim uvjetima za podizanje tužbe zbog posredne povrede koji su primjenjivi na diplomatsku zaštitu (državna pripadnost i iscrpljenje svih unutrašnjih pravnih sredstava). Poklanja se p...

  10. Brezžično upravljanje mikrokrmilniškega sistema za enosmerne električne pogonske sklope

    OpenAIRE

    OKORN, UROŠ

    2016-01-01

    V diplomskem delu je predstavljen sistem za brezžično komunikacijo pogonskih sklopov, upravljan z mikrokrmilnikom. Opisani sta celotna zgodovina razvoja sistema in razširitev opravil, ki jih sistem upravlja. Razlog za razvoj takega sistema je bila nefleksibilna izbira med že narejenimi enostavnimi sistemi PLC ter cena za namenske, prilagojene sisteme po meri. V delu je opisana izdelava tiskanega vezja in programa za pripadajoči mikrokrmilnik ter brezžična povezava oddajnega daljinskega upravl...

  11. Savremeno naoružanje i vojna oprema za broj 4/2013

    Directory of Open Access Journals (Sweden)

    Mladen R. Tišma

    2013-12-01

    Full Text Available Višenamenski borbeni avion MiG-29M/M2 preimenovan u MiG-35/D; Tekstron razvija laki jurišnik i izviđač; Boing i Saab o mogućnosti da ponude Gripen na konkursu T-X za novi avion za obuku američkog ratnog vazduhoplovstva; Predstavljena trenažna verzija ruskog borbenog helikoptera Mi-28; Nemački Evrofajteri dobijaju sposobnost za lovačko-bombarderska dejstva tek 2017. godine; Prikazan prototip S-350 Vitjaz, novog ruskog raketnog sistema za protivvazduhoplovnu odbranu; Poljskom RV-u isporučeni prvi modernizovani lovci MiG-29; Počela proizvodnja argentinskih školsko-borbenih aviona IA-63 Pampa III; Kineska borbena bespilotna letelica spremna za letna opitivanja; Helikopter Mi-8MSB oborio visinski rekord; Turski školski avion HÜRKUŞ izveo prvi let.

  12. Manipulacija rezultatima sportskih natjecanja - kaznenopravna odgovornost za kazneno djelo prijevare

    Directory of Open Access Journals (Sweden)

    Matko Pajčić

    2011-12-01

    Full Text Available Manipulacija rezultatima sportskih natjecanja ima povijest vjerojatno jednako dugu kao i sport sam; međutim za pretpostaviti je da se prije radilo o rijetkim, izoliranim slučajevima. No, u novije vrijeme, a kao posljedica velike komercijalizacije sporta, takvo postupanje, koje je u pravilu koruptivne prirode, sve je učestalije. Riječ je o pojavi koja je vrlo često povezana s klađenjem, no ne nužno, budući da su prisutna i namještanja rezultata isključivo s ciljem postizanja određenog sportskog rezultata, npr. ostanka u određenom rangu natjecanja ili slično. U radu se razmatraju pojavni oblici tih radnji te mogućnosti kažnjavanja počinitelja navedenih protupravnih radnji temeljem normi kaznenog prava. Od više mogućnosti uspostavljanja kaznenopravne odgovornosti za više različitih kaznenih djela, u ovom radu će biti razmotrena samo kaznenopravna odgovornost za kazneno djelo prijevare, dok će razmatranje drugih kaznenih djela pod koja se obično povezuju s namještanjem rezultata sportskih natjecanja (primanje mita, davanje mita, udruživanje za počinjenje kaznenih djela, protupravno posredovanje, zlouporaba položaja i ovlasti i dr. biti predmet potanjeg razmatranja u posebnom radu.

  13. APLIKACIJA IOS ZA METEOROLOŠKE PODATKE IN ZAJEMANJE Z RASPBERRY PI IZ VREMENSKE POSTAJE

    OpenAIRE

    Prša, Denis

    2016-01-01

    Za diplomsko nalogo smo razvili skupek aplikacij s katerimi obdelamo podatke iz vremenske postaje in jih prikažemo uporabniku. Podatke s pomočjo programske opreme zajemamo, pošiljamo, shranjujemo in prikazujemo uporabnikom. Za diplomsko delo smo razvili aplikacijo za mobilne operacijske sisteme iOS 9. Pri ustvarjanju aplikacije smo uporabili različne komponente in tehnologije, kiatere so bolj podrobno opisane v nadaljevanjuSpoznali bomo na kak način smo razvijali aplikacijo in kaj vse smo upo...

  14. Průzkum poptávky po GMO a analýza faktorů ovlivňujících poptávku

    OpenAIRE

    Jankech, Aleš

    2007-01-01

    Tato práce se zabývá poptávkou po GMO. Přináší základní informace o GMO, vyjmenovává třídy GMO a především blíže rozebírá významné negativní a pozitivní vlivy, které působí na poptávku GMO. Práce obsahuje analýzu poptávky po GMO z dat získaných dotazníkovým šetřením.

  15. Průzkum poptávky po GMO a analýza faktorů ovlivňujících poptávku

    OpenAIRE

    Jankech, Aleš

    2007-01-01

    Tato práce se zabývá poptávkou po GMO. Přináší základní informace o GMO, vyjmenovává třídy GMO a především blíže rozebírá významné negativní a pozitivní vlivy, které působí na poptávku GMO. Práce obsahuje analýzu poptávky po GMO z dat získaných dotazníkovým šetřením.

  16. Facile synthesis of MWCNTs/Ag{sub 3}PO{sub 4}: novel photocatalysts with enhanced photocatalytic activity under visible light

    Energy Technology Data Exchange (ETDEWEB)

    Tian Jingqi; Li Haiyan; Xing Zhicai; Wang Lei [Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, State Key Lab of Electroanalytical Chemistry (China); Asiri, Abdullah M.; Al-Youbi, Abdulrahman O. [Faculty of Science, King Abdulaziz University, Chemistry Department (Saudi Arabia); Sun, Xuping, E-mail: sunxp@ciac.jl.cn [Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, State Key Lab of Electroanalytical Chemistry (China)

    2013-03-15

    The present communication demonstrates a facile strategy toward rapid in situ synthesis of Ag{sub 3}PO{sub 4} nanoparticles onto the surface of multi-walled carbon nanotubes (MWCNTs/Ag{sub 3}PO{sub 4}) by adding Na{sub 2}HPO{sub 4} into the mixture of MWCNTs and AgNO{sub 3} ethylene glycol solution under stirring. We further demonstrate the use of such composites as novel photocatalysts toward photodecomposition of rhodamine B under visible light. It suggests that varied loading of MWCNTs in the composites has significant influence on the photocatalytic activity and the MWCNTs{sub 2.5%}/Ag{sub 3}PO{sub 4} exhibits the highest photocatalytic performance.Graphical abstract.

  17. THE DETERMINATION OF SALINITY AND NUTRITION (NaH2PO4 PROFILE IN Nannochloropsis oculata CULTIVATION TO GAIN MAXIMUM LIPID

    Directory of Open Access Journals (Sweden)

    Elida Purba

    2012-11-01

    Full Text Available The determination of salinity and nutrition (NaH2PO4 profile in Nannochloropsis oculata cultivationto gain maximum lipid was investigated. The purpose of this research was to determine the optimumsalinity and nutrition (NaH2PO4 to gain maximum lipid in Nannochloropsis oculata. Phosphor canbe obtained by adding NaH2PO4 and a salinity enhancement can be applied by adding NaCl to theculture. This research was run by matching each variable of salinity (33, 34, 35, and 36 ppt to eachvariable of NaH2PO4 (5, 10 and 15 ppm randomly. The results show that the percentage of maximumlipid in Nannochloropsis oculata was obtained at 35 ppt and 5 ppm NaH2PO4 (37.68 %. Neverthelessthe maximum lipid percentage is low and it can be caused by some factors, such as the dryingtemperature for preparing the dry microalgae to extract, the cell disruption method and the extractionsolvent used. By seeing the results, salinity can affect the total lipid in Nannochloropsis oculata. Thegreater the salinity in culture the greater the lipid content in Nannochloropsis oculata. Otherwise adifferent response was obtained by adding NaH2PO4. If NaH2PO4 concentration is greater, the lipidcontained Nannochloropsis oculata will be lower Penentuan profilsalinitas dan nutrisi (NaH2PO4 pada pembiakan Nannochloropsis oculata untuk memperoleh lipidmaksimum diteliti. Tujuan penelitian ini adalah untuk menentukan salinitas dan nutrisi (NaH2PO4optimum untuk memperoleh lipid maksimum pada Nannochloropsis oculata. Fosfor dapat diperolehdengan menambahkan NaH2PO4 pada kultur dan peningkatan salinitas dapat dilakukan denganmenambahkan NaCl pada kultur. Penelitian ini dijalankan dengan mencocokkan setiap variabelsalinitas (33, 34, 35, dan 36 ppt dengan setiap variabel NaH2PO4 (5, 10 dan 15 ppm secara acak.Hasil menunjukkan bahwa persentase lipid maksimum pada Nannochloropsis oculata diperoleh padasalinitas 35 ppt dan 5 ppm NaH2PO4 (37,68 %. Walaupun demikian, persentase lipid maksimummasih

  18. Upajmo si biti starši. Praktično delovanje dveh sol za starše

    Directory of Open Access Journals (Sweden)

    Andreja Jereb

    2005-12-01

    Full Text Available V prispevku predstavljam dva primera uspdne prakse sole za starSe. Prvi zasluzi pozornost, ker zajema vse potrebne vsebine za ozavdcanje starsev o kompleksnosti in konfliktnosti odnosov v druzini tako med zakoncema kot tudi med starsi in mladostniki. Program je pripravljen sistematicno, sreeanja so strukturirana in privlacna za starSe mladostnikov, ki marsikatero tezavo iz doma prepoznajo v stevilnih primerih iger vlog. Drugi, spanski primer, zasluzi pozornost predvsem zaradi aktivne vloge starsev pri pripravi na sreeanje, z leti vedno aktivnejSe vloge na srecanjih in v pogovorih v druZini, zaradi cesar je precej zahteven tako za voditelja kot za starSe, a sodee po izjavah starsev iskana in uspdna metoda dela s starsi.

  19. Pregled evropskih in mednarodnih pobud za mednarodne standarde uporabe testov

    OpenAIRE

    Bartram, Dave

    2015-01-01

    Predstavljeni so vsi mednarodni, evropski in nacionalni projekti, povezani s standardi za uporabo testov, delo in raziskava delovne skupine za teste in testiranje v evropskem zduženju psihologov, evropske smernice za proces ocenjevanja, mednarodne smernice za uporabo testov.

  20. Tropospheric profile of NO2 over the Po Valley measured with scan DOAS spectrometer

    Science.gov (United States)

    Masieri, S.; Bortoli, D.; Petritoli, A.; Kostadinov, I.; Premuda, M.; Ravegnani, F.; Carnevale, C.; Pisoni, E.; Volta, M.; Giovanelli, G.

    2009-09-01

    A simple method to determine the vertical distribution of a pollutant gas, namely NO2, by means of the spectral measurements obtained with a scan-DOAS spectrometer, is presented. The developed technique can be summarized as follows: i) a series of quasi simultaneous measurements in the zenith and in others directions allowing for the determination of the Slant Column Density of NO2 for different elevation angles; ii) an active DOAS measurement for the determination of the NO2 concentration at the ground; iii) a set of Radiative Transfer Model (RTM) calculation of the scattering distance from the spectrometer, for a set of visibility values; iv) a recursive procedure of profile calculation starting from the first measurement and subtracting the value of NO2 Slant Column Density (SCD) retrieved from the measurement taken at the previous angle of sight. Measurements are carried out during summer 2007 in S. Pietro Capofiume (Bologna-Italy). The vertical distribution for NO2 obtained with the above described method has been compared with the profiles calculated with the GAMES (Gas Aerosol Modelling Evaluation System) model. The results of this comparison show some differences between the modelled and the measured profiles, probably due to box approximations in RTM calculation for measured profiles and to the large pixel grid (about 10x10 km2), for model evaluation.

  1. Taktička primjena sustava za dobivanje komprimirane pjene

    OpenAIRE

    Bognolo, Dario; Kršulja, Marko; Zeoli, Teodor

    2014-01-01

    CAFS je sustav za gašenje komprimiranom pjenom (Compressed Air Foam System) koji omogućuje aktivno i preventivno gašenje požara, a pogodan je kada požar poprima obilježja nekoliko vrsta požara. Zahvaljujući mogućnosti finoga doziranja vlažnosti pjene, višestruko se povećava učinkovitost samo jednoga spremnika vode na vatrogasnom vozilu. Ova karakteristika dolazi do izražaja poglavito u sredinama s ograničenim količinama vode. Dobro prianjanje na površine svih vrsta čini komprimiranu pjenu izu...

  2. Facility Bench of Stationary Engines for Study of Emissions (E65-PO) CIEMAT; Instalacion Banco de Motores Estacionarios para Estudio de Emisiones (E65-PO) CIEMAT

    Energy Technology Data Exchange (ETDEWEB)

    Rojas Garcia, E.; Rodriguez Maroto, J.J.

    2007-07-01

    The Project of Technology of Aerosols in Generation of Energy, of the Department of Fossil Fuels of the CIEMAT, began in the year 2004, a research activity line, based on the study of the emissions coming from internal combustion engines, particularly of Diesel technology. Activity was continued by the Polluting Emissions Group of the Department of Environment, when becoming the original Project in this Group. From the concession to the Group, of the project GR/AMB/0119/2004 Evaluation of the Emissions of Biodiesel supported by the Autonomous Community of Madrid together with the European Regional Development Fund (ERDF), this activity was encourage, with the design, assembly and to get ready of the facility Bench of stationary engines for study of emissions, located in the building 65 at CIEMAT, Madrid. The present report constitutes a detailed technical description of each one of the elements that the installation Bench of stationary engines for study of emissions it integrated within the framework of the referred project (GR/AMB/0119/2004) and whose capacity includes studies of the effects of the engine, fuel, operation conditions, and methodology of sampling and measurement of emissions (gases and particles). The fundamental parts of facility describes in the present report are: engine test cell (cabin of sound insulation , ventilation and refrigeration system, anti vibrations mounting, engine, dynamometric brake), lines of preconditioning of particles and gases emissions (exhaust line, primary and secondary dilution lines, gases cleaning system...), other general parts of facility (sampling and measurement station, service lines...). The present report not only reflects the characteristics of the systems involved, but rather also in certain cases specified the procedure and reason for their choice. (Author) 10 refs.

  3. Interaktivna naloga za haptičnega rehabilitacijskega robota

    OpenAIRE

    BEZOVŠEK, LUKA

    2017-01-01

    V diplomski nalogi smo izdelali računalniški program v obliki interaktivne igre, ki skupaj z rehabilitacijskim robotom tvori celovit sistem za rehabilitacijo zgornjih okončin v primeru nevroloških poškodb. S pregledom področja računalniške tehnologije, vhodnih naprav in navidezne resničnosti smo predstavili področja uporabe računalniške grafike in robotike v praksi ter hkrati izpostavili tudi prednosti uporabe tovrstnih tehnologij na področju rehabilitacije. Predstavili smo tudi programsko ok...

  4. World Energy Data System (WENDS). Volume VII. Nuclear facility profiles, AG--CH. [Brief tabulated information

    Energy Technology Data Exchange (ETDEWEB)

    1979-06-01

    In this compendium each profile of a nuclear facility is a capsule summary of pertinent facts regarding that particular installation. The facilities described include the entire fuel cycle in the broadest sense, encompassing resource recovery through waste management. Power plants and all US facilities have been excluded. To facilitate comparison the profiles have been recorded in a standard format. Because of the breadth of the undertaking some data fields do not apply to the establishment under discussion and accordingly are blank. The set of nuclear facility profiles occupies four volumes; the profiles are ordered by country name, and then by facility code. Each nuclear facility profile volume contains two complete indexes to the information. The first index aggregates the facilities alphabetically by country. It is further organized by category of facility, and then by the four-character facility code. It provides a quick summary of the nuclear energy capability or interest in each country and also an identifier, the facility code, which can be used to access the information contained in the profile.

  5. World Energy Data System (WENDS). Volume VIII. Nuclear facility profiles, CO--HU. [Brief tabulated information

    Energy Technology Data Exchange (ETDEWEB)

    1979-06-01

    In this compendium each profile of a nuclear facility is a capsule summary of pertinent facts regarding that particular installation. The facilities described include the entire fuel cycle in the broadest sense, encompassing resource recovery through waste management. Power plants and all US facilities have been excluded. To facilitate comparison the profiles have been recorded in a standard format. Because of the breadth of the undertaking some data fields do not apply to the establishment under discussion and accordingly are blank. The set of nuclear facility profiles occupies four volumes; the profiles are ordered by country name, and then by facility code. Each nuclear facility profile volume contains two complete indexes to the information. The first index aggregates the facilities alphabetically by country. It is further organized by category of facility, and then by the four-character facility code. It provides a quick summary of the nuclear energy capability or interest in each country and also an identifier, the facility code, which can be used to access the information contained in the profile.

  6. World Energy Data System (WENDS). Volume IX. Nuclear facility profiles, IN--PL. [Brief tabulated information

    Energy Technology Data Exchange (ETDEWEB)

    1979-06-01

    In this compendium each profile of a nuclear facility is a capsule summary of pertinent facts regarding that particular installation. The facilities described include the entire fuel cycle in the broadest sense, encompassing resource recovery through waste management. Power plants and all US facilities have been excluded. To facilitate comparison the profiles have been recorded in a standard format. Because of the breadth of the undertaking some data fields do not apply to the establishment under discussion and accordingly are blank. The set of nuclear facility profiles occupies four volumes; the profiles are ordered by country name, and then by facility code. Each nuclear facility profile volume contains two complete indexes to the information. The first index aggregates the facilities alphabetically by country. It is further organized by category of facility, and then by the four-character facility code. It provides a quick summary of the nuclear energy capability or interest in each country and also an identifier, the facility code, which can be used to access the information contained in the profile.

  7. Kulturno nasledstvo i turiz''m - za konstruiraneto na etnografskite kompleksi

    Directory of Open Access Journals (Sweden)

    Stanka Janeva

    2008-01-01

    Full Text Available (bugarski Interes''t k''m kulturnoto bogatstvo na edin narod e sred osnovnite stimuli za razvitieto na turizma. Tendencijata da se revitalizirat tradiciite na edna ili druga kultura se nabljudava v strani po celija svjat. Vse po-često dnes v procesa na homogenizacija na kulturite različnite obščnosti izobretjavat prostranstva, koito sa svoeobrazni rezervati na kulturnoto nasledstvo. Te predlagat očakvanata kulturna različnost, t''rsena predimno v edno idealizirano minalo. Reaktiviraneto mu i 'živata istorija' stavat vse po-populjarni kato načini za privličane na turistite i provokira konstruiraneto na specifični prostranstva i s''zdavaneto na novi, specialno izgradeni atrakcii. Edna ot naj- atraktivnite formi na prezentirane na kulturnoto nasledstvo e etnografskijat kompleks. .

  8. Načrtovanje elektronskega vezja za baterijsko napajan kuhinjski mešalnik

    OpenAIRE

    TANŠEK, TADEJ

    2016-01-01

    V diplomski nalogi je predstavljeno načrtovanje vezij za delovanje prenosne polnilne baterijske mešalne naprave (blender − električni mešalnik). V začetnem delu naloge pregledamo zgodovino razvoja Li-ion baterij, lastnosti tehnologije in z njo povezane omejitve. Pri polnjenju Li-ion baterij je zelo pomembno omejevanje toka in napetosti, ki morata biti pravilno izvedena, da ne pride do poškodb ali uničenja baterij. Celotni sistem mešalnika sestavlja pet sklopov: zunanji stikalni napajaln...

  9. KITAJSKA, PRILOŽNOST ALI TVEGANJE ZA NEMŠKO AVTOMOBILSKO INDUSTRIJO - PRIMER BMW

    OpenAIRE

    Grmek, Tine

    2014-01-01

    Nemška avtomobilska industrija je zelo pomembna za nemško gospodarstvo in zaposlovanje. Pomembni avtomobilski trgi za nemško avtomobilsko industrijo so poleg evropskega in ameriškega, še kitajski. Kitajska ima visoko gospodarsko rast in z njo se povečuje tudi povpraševanje po avtomobilih. Večina kitajskih proizvajalcev avtomobilov je v državni lasti. Ker kitajskim proizvajalcev manjkajo izkušnje, se združujejo v »Joint Venture« z mednarodnimi proizvajalci vozil. Kitajski trg ima vedno večjo k...

  10. UPORABA COBIT 5 ZA SPREMLJANJE IN VREDNOTENJE IT REŠITEV

    OpenAIRE

    Lončar, Tomaž

    2013-01-01

    V diplomskem delu so predstavljeni ključni pristopi za razumevanje spremljanja vrednotenja in ocenjevanja informacijske rešitve skeniranja evidenčnih listov o ravnanju z odpadki po priporočilih COBIT 5. Ključen prispevek dela predstavlja proučitev priporočil COBIT 5 in izvedba praktičnega primera na osnovi omenjenih priporočil. V teoretičnem delu se po poglavjih zvrstijo področja, ki opisujejo podjetje, kjer smo izvajali vrednotenje po COBIT 5 priporočilih, ter predstavitev samega COBIT-a....

  11. UPORABA COBIT 5 ZA SPREMLJANJE IN VREDNOTENJE IT REŠITEV

    OpenAIRE

    2013-01-01

    V diplomskem delu so predstavljeni ključni pristopi za razumevanje spremljanja vrednotenja in ocenjevanja informacijske rešitve skeniranja evidenčnih listov o ravnanju z odpadki po priporočilih COBIT 5. Ključen prispevek dela predstavlja proučitev priporočil COBIT 5 in izvedba praktičnega primera na osnovi omenjenih priporočil. V teoretičnem delu se po poglavjih zvrstijo področja, ki opisujejo podjetje, kjer smo izvajali vrednotenje po COBIT 5 priporočilih, ter predstavitev samega COBIT-a....

  12. V semju - po rebjonku i grazhdanstvo za zaslugi / Anna Litvinjuk

    Index Scriptorium Estoniae

    Litvinjuk, Anna

    2005-01-01

    Rahvastikuminister Paul-Eerik Rummo tegi kokkuvõtteid möödunud aastast. Perekond traditsioonilises mõistes ja vabaabielus sündinud lapsed, kasvab Eestist lahkuvate noorte naiste arv, suureneb naturalisatsiooni kaudu kodakondsuse saanute arv

  13. ANALIZA UČBENIKOV ZA NARAVOSLOVJE V ŠESTEM RAZREDU DEVETLETNE OSNOVNE ŠOLE

    OpenAIRE

    Stajnko, Maja

    2011-01-01

    Vsako leto so učitelji postavljeni pred težko odločitev, kateri učbenik izbrati za predmet, katerega poučujejo. Izbirajo pa lahko med učbeniki različnih avtorjev in različnih založb. Prav tako pa je pomembno, da je te učbenike potrdil Strokovni svet Republike Slovenije za tekoče šolsko leto, kajti le-ti učbeniki po predpisih zadoščajo osnovnim kriterijem — pokrivajo učne cilje in so strokovno vsebinsko ustrezni. V tem diplomskem smo želeli analizirati in primerjati učbenike za naravoslovje v ...

  14. Problem Severity Profiles of Substance Abusing Women in Therapeutic Treatment Facilities

    Science.gov (United States)

    Isralowitz, Richard; Reznik, Alexander

    2009-01-01

    This article aims to examine specific substance use profiles among former Soviet Union (FSU) immigrant and native-born women in Israeli therapeutic treatment facilities. Individuals were sampled at drug treatment facilities and assessed using the Addiction Severity Index. ASI scores suggest differences between the two groups. Among the findings…

  15. Forenzika elektronske pošte

    OpenAIRE

    Milorad S. Markagić

    2013-01-01

    U najopštijem smislu digitalna forenzika može se definisati kao skup metoda za prikupljanje, analizu i prezentaciju digitalnih dokaza koji se mogu pronaći na računarima, serverima, u računarskim mrežama, bazama podataka, mobilnim uređajima i svim drugim elektronskim uređajima na kojima se čuvaju podaci. U ovom radu su opisane metode prikupljanja digitalnih dokaza u elektronskoj pošti i njihova analiza. Uvod Elektronska pošta se kao dokazni materijal pojavljuje u velikom broju kako građanskih ...

  16. Enhanced electrochemical properties of LiFePO4 by Mo-substitution and graphitic carbon-coating via a facile and fast microwave-assisted solid-state reaction.

    Science.gov (United States)

    Li, Dan; Huang, Yudai; Sharma, Neeraj; Chen, Zhixin; Jia, Dianzeng; Guo, Zaiping

    2012-03-14

    A composite cathode material for lithium ion battery applications, Mo-doped LiFePO(4)/C, is obtained through a facile and fast microwave-assisted synthesis method. Rietveld analysis of LiFePO(4)-based structural models using synchrotron X-ray diffraction data shows that Mo-ions substitute onto the Fe sites and displace Fe-ions to the Li sites. Supervalent Mo(6+) doping can act to introduce Li ion vacancies due to the charge compensation effect and therefore facilitate lithium ion diffusion during charging/discharging. Transmission electron microscope images demonstrate that the pure and doped LiFePO(4) nanoparticles were uniformly covered by an approximately 5 nm thin layer of graphitic carbon. Amorphous carbon on the graphitic carbon-coated pure and doped LiFePO(4) particles forms a three-dimensional (3D) conductive carbon network, effectively improving the conductivity of these materials. The combined effects of Mo-doping and the 3D carbon network dramatically enhance the electrochemical performance of these LiFePO(4) cathodes. In particular, Mo-doped LiFePO(4)/C delivers a reversible capacity of 162 mA h g(-1) at a current of 0.5 C and shows enhanced capacity retention compared to that of undoped LiFePO(4)/C. Moreover, the electrode exhibits excellent rate capability, with an associated high discharge capacity and good electrochemical reversibility.

  17. Turbinski regulator za male hidroelektrarne

    OpenAIRE

    Bergoč, Primož

    2015-01-01

    V pričujočem delu je predstavljen razvoj turbinskega regulatorja za male hidroelektrarne s sinhronskim generatorjem. Turbinski regulator je pomemben člen vsakega hidro agregata, saj je njegova naloga vzdrževati turbino v želeni delovni točki glede na izbran režim obratovanja z reguliranjem odprtja izvršnih členov. Izvršni členi so lahko vodilnik, gonilnik ali iglasti ventil in odrezač, odvisno od vrste turbine. Algoritem turbinskega regulatorja smo izvedli na programirljivem logičnem krmi...

  18. Značaj predstavke u zaštiti ljudskih prava i suzbijanju korupcije

    OpenAIRE

    Smolčić, Petar

    2009-01-01

    U članku se obrazlaže međusobni odnos pojmova - podnesak, peticija i predstavka, a daje se i definicija predstavke, pritužbe, prijave, prigovora i prijedloga. Razrađuje se značaj predstavke u zaštiti ljudskih prava i suzbijanju korupcije, način zaprimanja, postupakprovjere navoda te način evidentiranja rada po predstavci.

  19. Wire Scanner Beam Profile Measurements: LANSCE Facility Beam Development

    Energy Technology Data Exchange (ETDEWEB)

    Gilpatrick, John D. [Los Alamos National Laboratory; Batygin, Yuri K. [Los Alamos National Laboratory; Gonzales, Fermin [Los Alamos National Laboratory; Gruchalla, Michael E. [Los Alamos National Laboratory; Kutac, Vincent G. [Los Alamos National Laboratory; Martinez, Derwin [Los Alamos National Laboratory; Sedillo, James Daniel [Los Alamos National Laboratory; Pillai, Chandra [Los Alamos National Laboratory; Rodriguez Esparza, Sergio [Los Alamos National Laboratory; Smith, Brian G. [Los Alamos National Laboratory

    2012-05-15

    The Los Alamos Neutron Science Center (LANSCE) is replacing Wire Scanner (WS) beam profile measurement systems. Three beam development tests have taken place to test the new wire scanners under beam conditions. These beam development tests have integrated the WS actuator, cable plant, electronics processors and associated software and have used H{sup -} beams of different beam energy and current conditions. In addition, the WS measurement-system beam tests verified actuator control systems for minimum profile bin repeatability and speed, checked for actuator backlash and positional stability, tested the replacement of simple broadband potentiometers with narrow band resolvers, and tested resolver use with National Instruments Compact Reconfigurable Input and Output (cRIO) Virtual Instrumentation. These beam tests also have verified how trans-impedance amplifiers react with various types of beam line background noise and how noise currents were not generated. This paper will describe these beam development tests and show some resulting data.

  20. Molecular cloning, structure and expressional profiles of two novel single-exon genes (PoCCR6A and PoCCR6B) in the Japanese flounder (Paralichthys olivaceus).

    Science.gov (United States)

    Wang, Lei; Zhang, Yong-zhen; Xu, Wen-teng; Jia, Xiao-dong; Chen, Song-lin

    2016-05-01

    CCR6 is an important binding receptor of CCL20 and beta-defensins, and has multiple functions in the innate and acquired immune responses. In this study, we cloned the PoCCR6A and PoCCR6B genes of the Japanese flounder and studied the gene structure and expression patterns of these two genes in bacterial infection. The full-length PoCCR6A cDNA is 1415 bp and the open reading frame (ORF) is 1113 bp, encoding a 370-amino-acid peptide. The full-length PoCCR6B cDNA is 2193 bp and the ORF is 1029 bp, encoding a 363-amino-acid peptide. The structures of PoCCR6A and PoCCR6B indicate that they are single-exon genes. The predicted proteins encoded by PoCCR6A and PoCCR6B have the typical G-protein-coupled receptor (GPCR) family signature of seven transmembrane domains and several conserved structural features. A tissue distribution analysis showed that PoCCR6A is predominately expressed in the intestine, gill, and blood, and PoCCR6B in the gill, spleen, and liver. The expression patterns of the two chemokine receptors were analyzed during bacterial infection. In spleen and kidney, the expression of PoCCR6A was significantly upregulated at 24 h after infection, whereas the expression of PoCCR6B was steady at these time points. While in intestine, both of them were upregulated at 6 h-12 h after infection, and in gill the expression levels of them were upregulated at 24 h. The patterns of expression suggested that PoCCR6A and PoCCR6B play an important role in the immune response of the Japanese flounder, especially in the mucosal tissues.

  1. NAČINI UPORABE SPLETNIH DRUŽBENIH OMREŽIJ ZA PROMOCIJO MALIH PODJETIJ

    OpenAIRE

    Ribič, Robert

    2014-01-01

    Zaradi zniževanja stroškov in ogromnega števila ljudi, ki imajo profil na spletnih družbenih omrežjih, Facebook profil ima kar 750.000 Slovencev, vidijo podjetja spletna družbena omrežja, kot preprosto rešitev za doseganje njihovih marketinških ciljev. To tehniko uporabi veliko malih podjetij, ki nima velikih vsot namenjenih izključno za promocijo, saj jim predstavlja stroškovno učinkovito rešitev. Vendar se hitro pojavijo problemi, kot so ogromno vloženega časa brez konkretne prodaje, malo š...

  2. Spectroscopy of $^{194}$Po

    CERN Document Server

    Younes, W; Jin, H Q; Bernstein, L A; McNabb, D P; Davids, C N; Janssens, R V F; Khoo, T L; Lister, C J; Blumenthal, D J; Carpenter, M P; Henderson, D; Henry, R G; Lauritsen, T; Nisius, D T; Pentillä, H; Drigert, M W; Jin, H Q

    1995-01-01

    Prompt, in-beam \\gamma rays following the reaction ^{170}Yb + 142 MeV ^{28}Si were measured at the ATLAS facility using 10 Compton-suppressed Ge detectors and the Fragment Mass Analyzer. Transitions in ^{194}Po were identified and placed using \\gamma-ray singles and coincidence data gated on the mass of the evaporation residues. A level spectrum up to J\\approx10\\hbar was established. The structure of ^{194}Po is more collective than that observed in the heavier polonium isotopes and indicates that the structure has started to evolve towards the more collective nature expected for deformed nuclei.

  3. Primjerenost automatske epifluorescentne mikroskopije za određivanje bakteriološke kakvoće sirovog mlijeka

    OpenAIRE

    Golc Teger, Slavica

    1995-01-01

    Primjerenost metode automatske epifluorescentne mikroskopije (instrumentom BactoScan 8000) za određivanje ukupnog broja bakterija u sirovom mlijeku provjerena je kao metoda za određivanje kvalitete mlijeka proizvođača u svrhu plaćanja po higijenskoj kakvoći. Rezultati određeni BactoScan-om uspoređeni su rezultatima brojanja kolonija na pločama metodom IDF Standard 100 B : 1991. Nakon pretvorbe broja pulsova BactoScana (y) i broja kolonija na pločama (x) u dekadske logaritme izračunata je jedn...

  4. MIKROKRMILNIŠKI VMESNIK ZA ZAJEMANJE PODATKOV

    OpenAIRE

    Smodiš, Damjan

    2011-01-01

    V okviru diplomskega dela smo s pomočjo razvojnega orodja Easy Pic5, programskega jezika MikroC, 8-bitnega mikrokrmilnika in SD kartice velikosti 2 GB razvili mikrokrmilniški vmesnik za zajemanje podatkov analognih veličin preko vodila RS232. Za demonstracijo smo uporabili tri različne analogne senzorje. Uporabnik vnese izbiro preko računalniške tipkovnice. Podatki se shranijo v obliki .txt datoteke na SD kartico in so kasneje na voljo za nadaljnjo obdelavo.

  5. Stroj za razširjanje tankostenskih cevi

    OpenAIRE

    Krajnc, Denis

    2013-01-01

    Namen je bil izdelati stroj za razširjanje tankostenskih cevi na enem koncu po upogibanju. Te cevi so poljubnih dolžin od 1,5 metra do največ 6 metrov. Premeri cevi znašajo 80 mm, 100 mm in 125 mm. Cevi se izdelujejo iz pločevine. Časovni obseg razširjanja ene cevi se spreminja sorazmerno z dolžino cevi. Pri montaži oziroma spajanju cevi, je potrebno na enem koncu cev razširiti, tako da je možna montaža brez orodja. Testirali smo sile med obdelovalnim postopkom razširjanja in izbrali pravo or...

  6. The Beam Profile Monitoring System for the CERN IRRAD Proton Facility

    CERN Document Server

    Ravotti, F; Glaser, M; Matli, E; Pezzullo, G; Gan, K K; Kagan, H; Smith, S; Warner, J D

    2016-01-01

    To perform proton irradiation experiments, CERN built during LS1 a new irradiation facility in the East Area at the Proton Synchrotron accelerator. At this facility, named IR-RAD, a high-intensity 24 GeV/c proton beam is used. During beam steering and irradiation, the intensity and the transverse profile of the proton beam are monitored online with custom-made Beam Profile Monitor (BPM) devices. In this work, we present the design and the architecture of the IRRAD BPM system, some results on its performance with the proton beam, as well as its planned grades.

  7. Stroj za robljenje tankostenskih cevi

    OpenAIRE

    Šarić, Miljenko

    2013-01-01

    Pri skladiščenju in transportu oster rob na koncu cevi poškoduje površino ostalih cevi, zato je potrebno robljenje navznoter. V magistrskem delu je predstavljen idejni načrt stroja, katerega naloga je izvesti robljenje cevi na enem koncu po upogibanju. Preden smo se lotili zasnove stroja, smo s pomočjo simulacij analizirali odziv cevi na nov model orodja, sledila je izdelava orodja in nato preizkusi. Preizkusi so pokazali, da je s takšnim orodjem robljenje mogoče, vendar z dodanim trnom v not...

  8. SPLETNI PORTAL ZA SODNEGA IZVRŠITELJA

    OpenAIRE

    Kraljič, Boštjan

    2011-01-01

    Diplomska naloga predstavlja odprtokodno programsko orodje Joomla, za izdelavo in osveževanje spletnega portala. Xampp paket vsebuje vse potrebne komponente in module za izdelavo spletne strani in temelji na odprtokodni osnovi, spletni strežnik Apache, podatkovna baza Mysql in skriptni jezik PHP. Cilj diplomske naloge je izdelava, upravljanje in raba spletne strani sodnega izvršitelja. V uvodnem delu je opis postavitve spletnega portala CMS Joomla in opis uporabljenih orodij. V osred...

  9. TEHNOLOGIJA HTML5 ZA MOBILNE APLIKACIJE

    OpenAIRE

    Cigan, Alen

    2015-01-01

    Diplomsko delo predstavlja novosti, ki jih prinaša tehnologija HTML5 za spletne strani in mobilne aplikacije. Predstavljeni so vsi najpomembnejši novi elementi in funkcije, ki so del HTML5. Opisali smo tudi glavne prednosti in slabosti ter opravili pregled zgodovine razvoja HTML-ja. Da bi prikazali prednosti tehnologije HTML5, smo razvili hibridno aplikacijo za mobilne naprave, ki je zaradi HTML5 neodvisna od mobilnega operacijskega sistema.

  10. Facile sonochemical synthesis and morphology control of CePO{sub 4} nanostructures via an oriented attachment mechanism: Application as luminescent probe for selective sensing of Pb{sup 2+} ion in aqueous solution

    Energy Technology Data Exchange (ETDEWEB)

    Shiralizadeh Dezfuli, Amin [Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran (Iran, Islamic Republic of); Ganjali, Mohammad Reza, E-mail: ganjali@khayam.ut.ac.ir [Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran (Iran, Islamic Republic of); Biosensor Research Center, Endocrinology and Metabolism Molecular–Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran (Iran, Islamic Republic of); Norouzi, Parviz [Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran (Iran, Islamic Republic of); Biosensor Research Center, Endocrinology and Metabolism Molecular–Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran (Iran, Islamic Republic of)

    2014-09-01

    CePO{sub 4} nanostructures with hexagonal phase were controllably synthesized using Ce(NO{sub 3}){sub 3} reaction with NH{sub 4}H{sub 2}PO{sub 4} through a sonochemical method by simply varying the reaction conditions. By adding ethanol and polyethylene glycol (PEG), coral-reef nanostructures (CRNs) were synthesized and controlling over pH caused to nanorods/nanowires. Oriented attachment (OA) is proposed as dominant mechanism on the growth of nanostructures which is in competition with Ostwald ripening (OR). The crystal structure and morphology of the nanostructures were characterized by X-ray diffraction (XRD) and field-emission scanning electron microscopy (FE-SEM), respectively. The luminescent properties of CePO{sub 4} with different morphologies have been studied. Among the nanostructures, nanoparticles with the highest intensity of fluorescent have been used as luminescent probe for selective sensing of Pb{sup 2+} ion in aqueous solution. - Highlights: • Facile sonochemical method has been used for synthesis of CePO{sub 4} nanostructures. • Coral-reef as a new morphology of nanostructures is introduced. • CePO{sub 4} NPs have been used as luminescent probe for selective sensing of Pb{sup 2+} ion.

  11. Validation Through Simulations of a Cn2 Profiler for the ESO/VLT Adaptive Optics Facility

    CERN Document Server

    Garcia-Rissmann, A; Kolb, J; Louarn, M Le; Madec, P -Y; Neichel, B

    2015-01-01

    The Adaptive Optics Facility (AOF) project envisages transforming one of the VLT units into an adaptive telescope and providing its ESO (European Southern Observatory) second generation instruments with turbulence corrected wavefronts. For MUSE and HAWK-I this correction will be achieved through the GALACSI and GRAAL AO modules working in conjunction with a 1170 actuators Deformable Secondary Mirror (DSM) and the new Laser Guide Star Facility (4LGSF). Multiple wavefront sensors will enable GLAO and LTAO capabilities, whose performance can greatly benefit from a knowledge about the stratification of the turbulence in the atmosphere. This work, totally based on end-to-end simulations, describes the validation tests conducted on a Cn2 profiler adapted for the AOF specifications. Because an absolute profile calibration is strongly dependent on a reliable knowledge of turbulence parameters r0 and L0, the tests presented here refer only to normalized output profiles. Uncertainties in the input parameters inherent t...

  12. An Analysis of Selected Properties of ZA Alloys

    Science.gov (United States)

    Gervais, E.; Barnhurst, R. J.; Loong, C. A.

    1985-11-01

    Zinc-aluminum (ZA) alloys are a relatively new family of zinc foundry alloys having superior melting and casting characteristics and attractive mechanical properties. The ZA-8 and ZA-12 alloys are moderate to high strength materials while ZA-27 is a high-strength alloy. All can be sand cast, permanent molded and pressure die cast. An extensive characterization program is being implemented to develop appropriate and reliable engineering data for designers. Property development in all aspects of ZA metallurgy is welladvanced. The data available on selected physical and mechanical properties of ZA alloys is compared here with the properties of traditional casting alloys.

  13. Softversko rešenje za izradu rasporeda časova u visokoškolskim ustanovama / Software solution for planning timetables in the high educational institutions

    Directory of Open Access Journals (Sweden)

    Dobrivoje Vulićević

    2005-11-01

    Full Text Available Izrada rasporeda časova u visokoškolskim ustanovama vrlo je složen i obiman proces. U radu je predstavljen informacioni sistem za automatizaciju planiranja rasporeda časova. Softver omogućava unos i čuvanje svih relevantnih podataka o predmetima (nastavnim planovima i programima, nastavnicima (pripadajućim katedrama, specijalnostima, nastavnim grupama, brojnim stanjem grupa, prostorijama (učionice, laboratorije i brzu izradu zahtevanih izveštaja rasporeda časova (klasičan, po danima, po predmetima, itd.. Softversko rešenje obuhvata bazu podataka projektovanu na platformi Microsoft SQL Server 2000 i korisnički interfejs projektovan alatom Microsoft Access 2000. / Planning timetables in high educational institutions is very complex and tiresome process. This paper presents information system f or automatization of planning timetables. Software provides input and saving of all relevant data concerning subjects, teachers, specialties, student groups, facilities (classrooms, laboratories and quick presentation of different report types about timetables. The software solution involves database designed on Microsoft SQL Server 2000 platform and user interface coded using Microsoft Access 2000.

  14. A facile route to modify ferrous phosphate and its use as an iron-containing resource for LiFePO4 via a polyol process.

    Science.gov (United States)

    Li, Shaomin; Liu, Xichuan; Mi, Rui; Liu, Hao; Li, Yinchuan; Lau, Woon-min; Mei, Jun

    2014-06-25

    This study introduces an economical and environmentally friendly way of synthesizing LiFePO4/C to be used as cathode material in lithium ion batteries via two processes: (1) the synthesis of LiFePO4/C cathode material using a low cost divalent precursor ferrous phosphate, Fe3 (PO4)2·8H2O, as iron source in a polyol process and (2) the modification of the morphology of this precursor by varying the reaction time in a coprecipitation process. The study examines the effects of different structures and morphologies of the precursor on the structure and electrochemical performance of the as-synthesized LiFePO4/C. The LiFePO4/C shows an excellent rate capability and cycle performance, with initial discharge capacities of 153, 128, and 106 mA h g(-1) at 1 C, 5 C, and 10 C. The capacity retention is respectively 98.7%, 98.2%, and 98.7%, after 10 cycles at the corresponding rates. The capacity retention remains at 97% even after 300 cycles at the rate of 10 C. The outstanding electrochemical performance can be attributed to the improved rate of Li(+) diffusion and the excellent crystallinity of synthesized LiFePO4/C powders through the modified precursor. Therefore, this is an economical and environmentally friendly way of synthesizing LiFePO4/C to be used as cathode material in lithium ion batteries.

  15. Intenzitet trošenja materijala kočnica rudarskog stroja za podizanje tereta

    OpenAIRE

    Ungureanu, Miorita; Ungureanu, Nicolae

    2017-01-01

    U radu se predstavlja dio istraživanja koja se odnose na tribološke aspekte kočnica rudarskog stroja za podizanje tereta. Istraživanje se sastoji od eksperimentalnog određivanja jačine trošenja za tarni materijal u dodiru s rubovima kočnicama. Oslanjajući se na uobičajena teoretska razmatranja i eksperimentalne modele, najprije je izmjeren intenzitet trenja tarnog materijala u skladu s početnom brzinom ruba kočnica, površinskom hrapavosti ruba i kontaktnim pritiskom između kočničke papuče i r...

  16. Kolegialni coaching: priročnik za strokovni in osebni razvoj (ocena knjige

    Directory of Open Access Journals (Sweden)

    Karin Elena Sánchez

    2014-04-01

    Full Text Available Kolegialni coaching avtoric Zore Rutar Ilc, Blanke Tacer in Brigite Žarkovič Adlešič je prvi priročnik za to področje, ki je plod slovenskega znanja. Na eni strani je sistematičen, metodičen, do bralca prijazno zasnovan, didaktično bogat in strokoven vodnik po osnovah coachinga; na drugi strani temelji na praktičnih primerih, v katerih skozi refleksijo uporabnikov in preizkuševalcev coachinga bralcu omogoča neposreden vpogled v njihovo učenje, napredek in razvoj. Pri tem ponuja nekatere preproste tehnike, orodja in modele ter bralcu na slikovit način pokaže, kako jih uporabiti v praksi. Primere uporabe začini še z izkušnjami in refleksijo tistih, ki so to že storili.

  17. Povezovanje celovitih informacijskih rešitev s pripomočki za poslovno poročanje na primeru rešitve iScala in pripomočka Crystal Reports 11

    OpenAIRE

    Markuš, Aleš

    2015-01-01

    Da so organizacije konkurenčne, morajo dostaviti izdelke in izvajati storitve najvišje kakovosti, in sicer čim hitreje in po najboljši možni ceni. Nabor poslovnih procesov, ki je znan kot celovita informacijska rešitev, se je izkazal kot učinkovito orodje za doseganje teh ciljev. Celovita informacijska rešitev ponuja sredstva za učinkovito povečanje in upravljanje potrebnih virov (materiali, oprema, orodja, delo, denar itd.). Za vsakega izmed teh virov lahko celovita informacijska rešitev ugo...

  18. Assessment of disease profiles and drug prescribing patterns of health care facilities in Edo State, Nigeria

    Directory of Open Access Journals (Sweden)

    Ehijie F.O. Enato

    2012-10-01

    Full Text Available Few studies have systematically characterized drug-prescribing patterns, particularly at the primary care level in Nigeria, a country disproportionately burdened with disease. The aim of this study was to assess the disease profiles and drug-prescribing pattern in two health care facilities in Edo State, Nigeria. The medical records of 495 patients who attended a primary or secondary health care facility in Owan-East Local Government Area of Edo State, Nigeria, between June and November 2009 were reviewed. Disease profiles and drug prescribing patterns were assessed. Data were analyzed based on the World Health Organization Anatomic Therapeutic Chemical classification system, and core drug prescribing indicators. Five hundred and twelve clinical conditions were identified. Infectious disease was most prevalent (38.3%, followed by disorder of the alimentary tract (16.4%. Malaria was responsible for 55.6% of the infectious diseases seen, and 21.3% (109/512 of the total clinical conditions managed at the two health facilities during the study period. Consequently, anti-infective medications were the most frequently prescribed medicines (21.5%, followed by vitamins (18.2%. Use of artesunate monotherapy at both facilities (15.7%, and chloroquine at the primary health facility (24.9% were common. Paracetamol (41.8% and non-steroidal anti-inflammatory drugs (24.9% were the most frequently used analgesic/antipyretic. At the primary health care facility, dipyrone was used in 21.6% of cases. The core drug prescribing use indicators showed inappropriate prescribing, indicating poly-pharmacy, overuse of antibiotics and injectio. Inappropriate drug use patterns were identified at both health care facilities, especially with regard to the use of ineffective antimalarial drugs and the use of dipyrone.

  19. Facile synthesis of 3D hierarchical foldaway-lantern-like LiMnPO4 by nanoplate self-assembly, and electrochemical performance for Li-ion batteries.

    Science.gov (United States)

    Chen, Dezhi; Wei, Wei; Wang, Ruining; Lang, Xiu-Feng; Tian, Yu; Guo, Lin

    2012-08-01

    Olivine-structured LiMnPO(4) with 3D foldaway-lantern-like hierarchical structures have been prepared via a one-step, template-free, solvothermal approach in ethylene glycol. The foldaway-lantern-like LiMnPO(4) microstructures are composed of numerous nanoplates with thickness of about 20 nm. A series of electron microscopy characterization results indicate that the obtained primary LiMnPO(4) nanoplates are single crystalline in nature, growing along the [010] direction in the (100) plane. Time-dependent morphology evolution suggests that ethylene glycol plays dual roles in oriented growth and self-assembly of such unique structures. After carbon coating, the as-prepared LiMnPO(4) cathode demonstrated a flat potential at 4.1 V versus Li/Li(+) with a specific capacity close to 130 mA h g(-1) at 0.1 C, along with excellent cycling stability.

  20. Posodobitev opreme za poučevanje industrijskih krmilj v Laboratoriju za industrijsko robotiko

    OpenAIRE

    Žefran, Gregor

    2016-01-01

    V Laboratoriju za industrijsko robotiko na Fakulteti za elektrotehniko, računalništvo in informatiko (FERI) je bila za nadaljnje poučevanje industrijskih krmilj potrebna posodobitev zastarele študijske opreme. Več kot 20 let stare programirljive logične krmilnike (PLK) serije FX proizvajalca Mitsubishi je bilo potrebno nadomestiti z novimi, sodobnimi PLK istega proizvajalca serije FX3GE. Najprej smo spoznali nove krmilnike, nato smo načrtovali električno vezavo krmilnikov v delovnih postajah,...

  1. INDIVIDUALNE METODE ZA PREMAGOVANJE STRESA

    OpenAIRE

    Soldat, Daniel

    2016-01-01

    Življenje si lahko predstavljamo kot čolniček, ki pluje po vodi in življenjske dogodke kot valove, ki lahko zamajejo človekovo ravnotežje. Čoln včasih pluje mirno, spet drugič se na obzorju pojavijo nevihte, iz oblakov se trgajo strele in visoki valovi čoln močno zamajejo. Takrat bi lahko rekli, da je posameznik v stresu. Sodoben način življenja prinaša mnogo preglavic, frustracij in takšnih ali drugačnih zahtev, ki lahko posameznika spravljajo v stres. Od vsakega posameznika je odvisno, ...

  2. NADGRADNJA STROJA ZA UPOGIBANJE PLOČEVINE

    OpenAIRE

    MARINČIČ, JANEZ

    2016-01-01

    Diplomska naloga predstavi izvedbo projekta posodobitve stroja za upogibanje pločevine v družinskem podjetju Marinčič s.p.. Posodobitev stroja je podjetju omogočila enostavnejše in kvalitetnejše proizvajanje kovinskih profilov. Projekt posodobitve stroja je obsegal analiziranje težave pri dolgotrajnosti mehanskih nastavitev horizontalne osi stroja, preučevanje različnih možnosti rešitve in ustrezno načrtovanje, izbiro primerne opreme, izdelavo električnih shem stroja, razvoj kode za progra...

  3. Virusi influence – izazov za imunosni sustav

    OpenAIRE

    Markotić, Alemka

    2011-01-01

    Virusi influence stalni su izazov za naš imunosni sustav. Umnožavaju se u epitelnim stanicama dišnog sustava, izazivaju staničnu smrt čime smanjuju učinkovitost cilija, omogućavajući dodatno naseljavanje drugih patogena (Streptococcus pneumoniae). Receptori slični Tollu (TLR, engl. Toll-like receptor), kao ključne komponente prirođene imunosti, važna su karika u imunoreakcijama na virus influence. TLR7 važan je endosomski receptor za ssRN virusa influence nakon čega slijede signalni mehanizmi...

  4. Izbor faktora rotacije vektora potiska za balističku raketu sa Lambertovim vođenjem / Choice of the rotational factor of the thrust vector for the ballistic missile with Lambert guidance

    Directory of Open Access Journals (Sweden)

    Danilo V. Ćuk

    2008-04-01

    Full Text Available Predmet rada jeste primena Lambertovog vođenja na balističku raketu. Koristeći fundamentalnu jednačinu za upravljački vektor brzine razvijena je formula za određivanje ugla orijentacije vektora potiska u zavisnosti od faktora rotacije njegovog pravca. Izvedena formula zahteva Q-matricu koja povezuje diferencijalnu promenu vektora položaja rakete sa odgovarajućom diferencijalnom promenom korelisane brzine za fiksnu poziciju cilja i konstantno vreme slobodnog leta rakete. Izborom parametra rotacije vektora potiska dobijaju se različiti profili ugaonog položaja rakete i ugla njene brzine u zavisnosti od vremena. Podešavanjem parametra rotacije vektora potiska moguće je ostvariti prekid rada raketnog motora pri nultom napadnom uglu i, na taj način, smanjiti početne poremećaje slobodnog leta rakete. / This paper deals with the application of the Lambert guidance to the ballistic missile. By using the fundamental equation for the velocity-to-be-gained, the demanded command for the thrust angle is developed in terms of the rotational factor of its direction. The developed formula requires the Q-matrix which links a differential change in the missile position vector to the corresponding differential change in the correlated velocity for the fixed target position and the constant time of free flight. The choice of the rotational parameter provides different profiles of the missile attitude and flight path angle with time. By adjusting the rotational parameter for the thrust vector, the cut-off of the rocket engine can occur at zero angle of attack and the initial perturbations during free flight may be thus reduced.

  5. Kontrola strukturnih i mikrostrukturnih karakteristika binarnih i ternarnih oksida titana za primenu u obnovljivim izvorima energije

    OpenAIRE

    Veljković, Ivana

    2012-01-01

    U disertaciji je dat pregled binarnih i ternarnih oksidi titana, počev od fundamen-talnih principa, preko sinteze, karakterizacije i procesiranja, do konkretne primene. Osnovni cilj istraživanja bilo je uspostavljanje zavisnosti između sinteze, svojstava i primene nestehiometrijskih binarnih oksida: titan-monoksida (TiOx) i Manjelijevih faza (TinO2n-1), kao i ternarnih oksida: Li4Ti5O12 spinela i α-Li2-xTiO3-x (OH)x · yH2O koji sadrže litijum. Dobijeni materijali su ispitivani za primenu kao ...

  6. NAČRT MARKETINŠKEGA KOMUNICIRANJA ZA PRODAJNI PROGRAM, PAPIRNE KONFEKCIJE

    OpenAIRE

    Žižek, Tina

    2016-01-01

    POVZETEK Ko govorimo o marketinškem komuniciranju je potrebno paziti na dejstvo, da mora tisti, ki pošilja sporočilo dobro poznati okolje tistega, kateremu je sporočilo namenjeno. To pomeni, da mora upoštevati morebitne posebnosti, ki so osnova za razmišljanje o posameznih segmentih. Pri tem pa ni pomembno samo komuniciranje organizacije z okoljem ampak tudi interno komuniciranje in v njegovem okviru komuniciranje top managementa podjetja s svojimi zaposlenimi. Pravilne odločitve glede iz...

  7. Cevovodni procesor HIP v vezju FPGA z okoljem za razhroščevanje

    OpenAIRE

    Lapajne, David

    2016-01-01

    Diplomska naloga obsega implementacijo cevovodne centralne procesne enote imenovane hipotetični procesor (HIP), narejen po principih opisanih v knjigi [1]. Vsebuje logiko za premoščanje, seštevalnik števil zapisanih v plavajoči vejici. Dodan ima ukazni in podatkovni predpomnilnik. Preko razhroščevalne enote je mogoče brati vse splošnonamenske in vmesne registre v cevovodu HIP ter tako spremljati izvajanje poteka prevedenega programa. HIP se izvaja na FPGA čipu na razvojni pl...

  8. Vertical profiles of pollutant gases measured with passive DOAS in the Po Valley devoted to satellite and chemical model data comparison

    Science.gov (United States)

    Masieri, S.; Petritoli, A.; Kostadinov, I.; Bortoli, D.; Premuda, M.; Ravegnani, F.; Giovanelli, G.

    2009-04-01

    In the frame of QUITSAT Italian pilot project (Air QUality with InTegration of ground-based and SAtellite measurement and chemical Transport model), two field campaigns were made in S.Pietro Capofiume (44.65˚ N; 11.37˚ E) and Bologna (44.52˚ N; 11.34˚ E) to provide concentration of ground particular matter and gaseous pollutants, namely nitrogen dioxide (NO2), formaldehyde (HCHO), sulphur dioxide (SO2) and ozone (O3). The aim of the campaigns was to provide experimental data need for tests and improvement of algorithms developed for integration of satellite and ground-based data together with chemical transport model data in order to retrieve air quality in the QUITSAT domain. Ground based measurements were carried out within a network of in-situ analyser in the Po Valley and with a scanning multi-axis DOAS (Differential Optical Absorption Spectroscopy) spectrometer system developed at ISAC-CNR institute [1], in collaboration with Geophysics Center of Evora [2]. TropoGAS (TROPOspheric Gas Analyser Spectrometer) spectrometer permits active and passive DOAS measurements at the chosen angles: α =1,2,3,6,10,15,20,90 and another measurement was taken along the sun direction. A Xenon lamp installed at 1km of distance from spectrometer was used as a reference concentration measured in the same place, and these values shows good agreement with in-situ analyser concentration. Gas spectral absorption was evaluated with DOAS [3] algorithms from 430 to 500 nm in two different windows: first from 436 to 460 nm for NO2 retrieval; second from 460 to 500 nm for O4 (best line at 477 nm) and NO2. Air Mass Factor (AMF) was calculated using PROMSAR (PROcessing of Multi-Scattered Atmospheric Radiation) model [4], that is a backward Montecarlo Radiative Transfer Model (RTM). An apposite inversion method [5][6], was applied to retrieve profiles of the target gases from their Slant Column Densities (SCD), using advanced approaches involving measurement of the atmospheric O4

  9. Forenzika elektronske pošte

    Directory of Open Access Journals (Sweden)

    Milorad S. Markagić

    2013-10-01

    Full Text Available U najopštijem smislu digitalna forenzika može se definisati kao skup metoda za prikupljanje, analizu i prezentaciju digitalnih dokaza koji se mogu pronaći na računarima, serverima, u računarskim mrežama, bazama podataka, mobilnim uređajima i svim drugim elektronskim uređajima na kojima se čuvaju podaci. U ovom radu su opisane metode prikupljanja digitalnih dokaza u elektronskoj pošti i njihova analiza. Uvod Elektronska pošta se kao dokazni materijal pojavljuje u velikom broju kako građanskih tako i kriminalnih forenzičkih istraga. Elektronska pošta i elektronska pošta zasnovana na internet serverima  širi se veoma brzo, pa lako i brzo završi i na računaru korisnika kome nije namenjena. Prvu elektronsku poruku poslao je Ray Tomilson 1971. godine, a deset godina kasnije u kombinaciji sa personalnim računarima i internetom prerasta u globalni način komuniciranja i personalnog i poslovnog. Takođe se koristi i u svrhu zabave, načina razmene podataka, ali predstavlja i nezamenjiv izvor digitalnih dokaza, kada dodje do računarskog incidenta. Analiza elektronske pošte Svaka elektronska poruka sastoji se od dva dela: zaglavlja i teksta poruke. Iz zaglavlja je moguće saznati izvorišnu i odredišnu adresu, pošiljaoca i namenjenog primaoca, a telo poruke sadrži tekst poruke. Ekstenzije dokumenata elektronske pošte U slučajevima kada je potrebno otkriti samo dokumente potrebne za pregled elektronskih poruka, ili kopirati pojedinačni dokument sačuvan unutar elektronske pošte, moguće je koristiti sistem na istraživanom računaru ili specijalizovani softver kao što je Outlook Extract Pro ili Outlook Export. Mnogo ispravniji, sigurniji i jednostavniji način je korišćenje forenzičkih alata kao što su EnCase ili FTK, sa ugrađenim pregledačima koji omogućavaju pregled i snimanje sadržaja baze podataka kao i njihovo kopiranje na druge medije za dalju analizu. Forenzički alati automatizuju proces skidanja i kopiranja

  10. Programski paket za realizaciju procene profesionalnog rizika na radnom mestu / Software package for risk assessment in the workplace

    Directory of Open Access Journals (Sweden)

    Zoran Novaković

    2008-04-01

    Full Text Available Zakon o bezbednosti i zdravlju na radu donosi niz novih obaveza poslodavaca, među kojima se, po značaju i složenosti, izdvajaju aktivnosti vezane za izradu Akta o proceni rizika na svim radnim mestima. Inicijalizacija projekta izrade softverskog paketa za procenu rizika na radnom mestu i u radnoj okolini izvršena je na osnovu iskazane potrebe, proistekle iz značajnih zakonodavnih promena koje su donete u oblasti bezbednosti i zdravlja na radu. To predstavlja osnovu za dalju nadgradnju u smislu integralnog informatičkog rešenja za vođenje poslova bezbednosti i zdravlja na radu. / A new national Occupational and Safety Law brings many new obligations for employers and among them activities related to risk assessment procedures. A project of developing a software package for conducting a risk assessment procedure in the workplace and in the work environment was initiated, based on needs generated by significant legislation changes in the domain of occupational safety and health. All of previous should be a basis for further upgrading to the level of an integrated software solution in the domain of occupational safety and health.

  11. AMS Radiocarbon Dating of Large Za Baobabs (Adansonia za) of Madagascar.

    Science.gov (United States)

    Patrut, Adrian; Patrut, Roxana T; Danthu, Pascal; Leong Pock-Tsy, Jean-Michel; Rakosy, Laszlo; Lowy, Daniel A; von Reden, Karl F

    2016-01-01

    The article reports the radiocarbon investigation of Anzapalivoro, the largest za baobab (Adansonia za) specimen of Madagascar and of another za, namely the Big cistern baobab. Several wood samples collected from the large inner cavity and from the outer part/exterior of the tree were investigated by AMS (accelerator mass spectrometry) radiocarbon dating. For samples collected from the cavity walls, the age values increase with the distance into the wood up to a point of maximum age, after which the values decrease toward the outer part. This anomaly of age sequences indicates that the inner cavity of Anzapalivoro is a false cavity, practically an empty space between several fused stems disposed in a ring-shaped structure. The radiocarbon date of the oldest sample was 780 ± 30 bp, which corresponds to a calibrated age of around 735 yr. Dating results indicate that Anzapalivoro has a closed ring-shaped structure, which consists of 5 fused stems that close a false cavity. The oldest part of the biggest za baobab has a calculated age of 900 years. We also disclose results of the investigation of a second za baobab, the Big cistern baobab, which was hollowed out for water storage. This specimen, which consists of 4 fused stems, was found to be around 260 years old.

  12. AMS Radiocarbon Dating of Large Za Baobabs (Adansonia za of Madagascar.

    Directory of Open Access Journals (Sweden)

    Adrian Patrut

    Full Text Available The article reports the radiocarbon investigation of Anzapalivoro, the largest za baobab (Adansonia za specimen of Madagascar and of another za, namely the Big cistern baobab. Several wood samples collected from the large inner cavity and from the outer part/exterior of the tree were investigated by AMS (accelerator mass spectrometry radiocarbon dating. For samples collected from the cavity walls, the age values increase with the distance into the wood up to a point of maximum age, after which the values decrease toward the outer part. This anomaly of age sequences indicates that the inner cavity of Anzapalivoro is a false cavity, practically an empty space between several fused stems disposed in a ring-shaped structure. The radiocarbon date of the oldest sample was 780 ± 30 bp, which corresponds to a calibrated age of around 735 yr. Dating results indicate that Anzapalivoro has a closed ring-shaped structure, which consists of 5 fused stems that close a false cavity. The oldest part of the biggest za baobab has a calculated age of 900 years. We also disclose results of the investigation of a second za baobab, the Big cistern baobab, which was hollowed out for water storage. This specimen, which consists of 4 fused stems, was found to be around 260 years old.

  13. The Beam Profile Monitoring System for the IRRAD Proton Facility at the CERN PS East Area

    CERN Document Server

    Gkotse, Blerina; Matli, Emanuele; Ravotti, Federico; Gan, Kock Kiam; Kagan, Harris; Smith, Shane; Warner, Joseph

    2016-01-01

    In High Energy Physics (HEP) experiments, devices are frequently required to withstand a certain radiation level. As a result, detectors and electronics must be irradiated to determine their level of radiation tolerance. To perform these irradiations, CERN built a new irradiation facility in the East Area at the Proton Synchrotron (PS) accelerator. At this facility, named IRRAD, a high-intensity 24 GeV/c proton beam is used. During irradiation, it is necessary to monitor the intensity and the transverse profile of the proton beam. The Beam Profile Monitor (BPM) for IRRAD uses 39-channel pixel detectors to monitor the beam position. These pixel detectors are constructed using thin foil copper pads positioned on a flex circuit. When protons pass through the copper pads, they induce a measurable current. To measure this current and determine the total flux of protons passing through the thin foil copper detectors, a new data acquisition system was designed as well as a new database and on-line display system. In...

  14. Razmjena poštanskih pošiljaka Jugoslavije sa svijetom u 1979-1988.

    Directory of Open Access Journals (Sweden)

    Slavko Jaram

    2012-10-01

    Full Text Available U ovom radu je analizirana i ocijenjena međunarodna razmjena poštanskih pošiljaka Jugoslavijesa svijetom u razdoblju 1979-1988.Zaključuje se o snazi, smjeru i značajkama nastalih promjena u dinamici i strukturi, posebnoza svaku skupinu usluga (pismovne i paketske. Pismovne i paketske usluge pokazuju stalno smanjenje u oba smjera (izvoz i uvoz začitavo razdoblje. Analitičke slike geografskedistribucije usluga pokazuju dominantnu uloguzemalja Evrope, posebno SR Njemačke.Zaključuje se da je ovakav pad međunarodnoga poštanskog prometa, uzrokovan izrazitom razvojnom tendencijom supstitucija među pojedinim vrstama usluga u uvjetima širenja. suvremene telekomunikacijske mr:eže, iako se ne bi smjeli zanemariti ni drugi uzroci, posebno u paketskih pošiljaka, koji su proizlazili iz opće ekonomske situacije zemlje u osamdesetim godinama ovog stoljeća.U budućnosti valja očekivati dugoročniju stagnaciju međunarodne razmjene poštanskih usluga, a u nekih usluga i nastavak opadanja.

  15. PLANIRANJE IN RAZVOJ KADROV NA MINISTRSTVU ZA ZUNANJE ZADEVE

    OpenAIRE

    2012-01-01

    Diplomsko delo predstavlja planiranje in razvoj kadrov na Ministrstvu za zunanje zadeve. V prvem, teoretičnem delu smo se seznanili s kadrovsko politiko, njenimi načeli in cilji, definirali pojem kadrovska funkcija ter njene naloge. V nadaljevanju smo podrobneje opisali planiranje kadrov, ki je nujnost za sodobno organizacijo, saj so plani kadrov pomembno sredstvo za stabilno poslovanje in iskanje odgovorov, kaj je potrebno opraviti, da bi organizacija dosegla cilje, kdaj in kako ter katere v...

  16. Standardi in metode za specifikacijo zahtev programske opreme

    OpenAIRE

    2015-01-01

    V tem diplomskem delu primerjam tri izbrane standarde in metode za pisanje specifikacij zahtev programske opreme. Metoda specifikacij IEEE 830 in metoda primerov uporabe predstavljata starejšo, medtem ko uporabniške zgodbe predstavljajo novejšo generacijo metod za pisanje specifikacij. Vsaka od metod je najprej predstavljena teoretično, nato pa še na praktičnem primeru. Za praktični primer smo vzeli kar študentom na Fakulteti za računalništvo in informatiko dobro poznani sistem E-študent. ...

  17. POSODOBITEV SPLETNEGA PORTALA E-GRADIV FAKULTETE ZA LOGISTIKO

    OpenAIRE

    Kajba, Zoran

    2013-01-01

    V diplomskem delu opišemo posodobitev portala Blend.Fl iz sistema za upravljanje vsebin Joomla 1.0 na verzijo 2.5. Portal Blend.Fl vsebuje komponente za delo z elektronskimi gradivi. Opišemo sistem za upravljanje vsebin Joomla in njegove razširitve, kjer smo implementacijo komponent dodatno preučili in prikazali. Predstavimo tudi komponenti sistema e-gradiv in njuno delovanje. Komponenti sta namenjeni urejanju poglavij in gradiv, namenjenih študentom Fakultete za logistiko, v povezavi s h...

  18. Kvaliteta vode za napajanje goveda - čimbenik dobrobiti

    OpenAIRE

    Marjanović, Siniša; Tofant, Alenka

    2008-01-01

    U radu je opisana važnost higijenske ispravnosti vode za napajanje za zdravlje, proizvodnost i dobrobit goveda. U laboratoriju je određena kvaliteta vode iz četiri izvorišta, ispitivanjem organoleptičkih, fizikalno-kemijskih i bakterioloških parametara. Uzorci koji nisu zadovoljavali uvjete Pravilnika o zdravstvenoj ispravnosti vode za piće su dezinficirani, in vitro, u laboratoriju s dezinficijensima na bazi klora i vodikova peroksida. Zatim je u pokusu u praksi, dezinficirana voda za napaja...

  19. Ekonomija vatrogasnih pjenila, pjena i mobilnih sustava gašenja požara pjenom prema europskim normama

    OpenAIRE

    Regent, Aleksandar

    2016-01-01

    Europske norme za pjene, pjenila i sustave pjene postoje već dugi niz godina. Zbog njihove složenosti, vatrogasna zajednica i struka zaštite od požara ih ne poznaje dobro niti ih u dovoljnoj mjeri koristi, iako su one primjenjive na fiksne i na mobilne sustave pjene. Analizirani su zahtjevi za gustoćom primjene i vremenom djelovanja mobilnih sustava pjene pri gašenju požara lokve površine do 400 m2. Gustoća primjene značajno ovisi o klasi pjenila, što dalje određuje količinu pjenila potrebnog...

  20. Analýza postury polohovým snímačem DTP2 u žen ve věku senescence po aplikaci cíleného cvičebního programu Posture analysis using position detector DTP2 in senescent women after the application of a targeted exercise program

    Directory of Open Access Journals (Sweden)

    Miroslava Přidalová

    2008-01-01

    Full Text Available U 3 souborů žen v mladším seniorském věku (průměrný věk 61, 63 a 66 let jsme v roce 2005, 2006 a 2007 sledovali změny v držení těla a ve tvaru páteře pomocí diagnostického přístroje DTP2 po intervenčním zásahu cíleného cvičebního programu (čínské terapeutické cvičení Chuej čchun kung. Cvičení ovlivnilo především oblast pánve, trendy naznačující zlepšení držení těla a stability nedosáhly ve všech případech statistické významnosti. Vzhledem k tomu, že technika cvičení je cíleně náročná, nesprávně provedené pozice nevedly ke zlepšení, ale projevily se nulovým efektem.Vždy byly nalezeny pozitivní změny ve smyslu zlepšení stability stoje a signifikantního posunu hrudní kyfózy k vertikále, což svědčí o zlepšení držení těla. V postavení ramen se projevila určitá rozkolísanost ve smyslu změn asymetrie ramen. Také postavení pánve reagovalo na intervenční zásahy přesuny asymetrie spinálních úhlů po 1. a 2. etapě cvičení, po 3. etapě došlo ke statisticky významnému vyrovnání levostranné asymetrie. Nalezli jsme zmenšení rozsahu titubací axiálního skeletu, což je doprovodným projevem zvýšení stability stoje. Celkově se nejlepší výsledky projevily po intervenci v roce 2007, kdy se snížil rozsah titubací ve směru osy x i y, byla zjištěna statisticky významná pozitivní změna v úpravě symetrie spina iliaca posterior superior a nalezen věcně významný trend snížení úhlových hodnot lordóz i hrudní kyfózy.Zdůvodnění těchto změn je možné najít ve zvýšeném důrazu na správné provádění technik cvičení a tím i úprav svalových dysbalancí. Subjektivní pocity seniorek byly velmi příznivé, vysoce pozitivně hodnotily pocit zlepšení stability stoje. During the years 2005, 2006, and 2007, we studied changes in the posture and spinal shape in three groups of younger female seniors (mean age 61, 63, and

  1. Geometrija za analitike učenja

    OpenAIRE

    Divjak, Blaženka; Maretić, Marcel

    2016-01-01

    Analitike učenja usredotočene su na obrazovne izazove vezane uz postizanje svrsishodnog učenja. Vrednovanje postizanja ishoda učenja izrazito utječe na učenje. Međutim, podaci o procesu vrednovanja vrlo rijetko se koriste u postojećim analitikama učenja. Nadalje, postojeće implementacije i analize procesa istorazinskog (vršnjačkog) vrednovanja nisu zadovoljavajuće. Ovaj rad predstavlja izradu i upotrebu matematičkog modela za opis i računanje vezano uz istorazinsko vrednovanje. Razvijeni mode...

  2. Frenulektomije - kada i zašto?

    OpenAIRE

    Kopić, Vlatko; Perić, Berislav; Macan, Darko

    2004-01-01

    Podatci iz literature često su dijametralno suprotni što se tiče potrebe da se izvede kirurški zahvat kod perzistentnoga frenuluma, bilo da se radilo o njegovoj izravnoj povezanosti s dijastemom medijanom ili ne. Različita su mišljenja o najpovoljnijem vremenu za zahvat ili na redoslijed intervencije kirurga, odnosno ortodonta. Većina se autora slaže u tome da je zahvat potreban, ali i da se s njim ne treba žuriti. Pojedini autori smatraju kako treba pričekati da iznikne trajni očnjak, a d...

  3. Uporaba laserske svetlobe kot predpriprava tekstilne odpadne vode za biološko čiščenje

    OpenAIRE

    Dornik, Črt

    2013-01-01

    Tekstilne odpadne vode so zelo kompleksne mešanice in so zelo težko biološko razgradljive. Poleg tega je zančilnost tekstilnih odpadnih vod še močna obarvanost in visoka kemijska potreba po kisiku. Navadne čistilne naprave so neuspešne pri razbarvanju in čiščenju tovrstnih odpadnih vod. V našem poskusu smo obdelovali močno obarvano tekstilno odpadno vodo iz Tekstine - Tekstilna Ajdovščina d.d. Za ta namen smo uporabljali dva laserja, ekscimerni XeCl (308 nm) in kontinuirni Ar - ionski laser (...

  4. Sjeme biljke Artocarpus heterophyllus (Jackfruit) – novi čvrsti supstrat za proizvodnju pigmenata uzgojem gljive Monascus

    OpenAIRE

    Babitha, Sumathy; Carlos R Soccol; Pandey, Ashok

    2006-01-01

    Pigmenti iz gljive Monascus purpureus dobiveni su uzgojem kulture na čvrstoj podlozi od praha dobivenog mljevenjem sušenog sjemena biljke Artocarpus heterophyllus (Jackfruit). Boja dobivenih pigmenata bila je stabilna bez obzira na početnu pH-vrijednost supstrata zahvaljujući puferskom svojstvu praha. Najbolji supstrat za proizvodnju pigmenata bio je prah veličine čestica od 0,4 do 0,6 mm, bez dodanog izvora ugljika. Kad se prahu doda natrijev glutamat, sojina sačma, pepton ili hitinski prah,...

  5. Računalniške didaktične igre za predšolske otroke

    OpenAIRE

    Taleski Gržinič, Nataša

    2015-01-01

    V današnjih časih si težko predstavljamo življenje brez tehnologije, ki je prisotna povsod. Po drugi strani pa igra sodi k vsakemu otroku in že od nekdaj velja, da jo sleherni otrok pozna in ima rad. Igranje je za otroke življenjskega pomena, kajti preko igre otrok spoznava svet okoli sebe ter dobiva vpogled v dogodke in situacije. V diplomskem delu se ukvarjamo z igranjem predšolskih otrok s pomočjo tehnologije, natančneje preko osebnega in tabličnega računalnika. Posebno pozornost posvečamo...

  6. Datgan, a reusable software system for facile interrogation and visualization of complex transcription profiling data

    Directory of Open Access Journals (Sweden)

    King Benjamin L

    2011-08-01

    Full Text Available Abstract Background We introduce Glaucoma Discovery Platform (GDP, an online environment for facile visualization and interrogation of complex transcription profiling datasets for glaucoma. We also report the availability of Datgan, the suite of scripts that was developed to construct GDP. This reusable software system complements existing repositories such as NCBI GEO or EBI ArrayExpress as it allows the construction of searchable databases to maximize understanding of user-selected transcription profiling datasets. Description Datgan scripts were used to construct both the underlying data tables and the web interface that form GDP. GDP is populated using data from a mouse model of glaucoma. The data was generated using the DBA/2J strain, a widely used mouse model of glaucoma. The DBA/2J-Gpnmb+ strain provided a genetically matched control strain that does not develop glaucoma. We separately assessed both the retina and the optic nerve head, important tissues in glaucoma. We used hierarchical clustering to identify early molecular stages of glaucoma that could not be identified using morphological assessment of disease. GDP has two components. First, an interactive search and retrieve component provides the ability to assess gene(s of interest in all identified stages of disease in both the retina and optic nerve head. The output is returned in graphical and tabular format with statistically significant differences highlighted for easy visual analysis. Second, a bulk download component allows lists of differentially expressed genes to be retrieved as a series of files compatible with Excel. To facilitate access to additional information available for genes of interest, GDP is linked to selected external resources including Mouse Genome Informatics and Online Medelian Inheritance in Man (OMIM. Conclusion Datgan-constructed databases allow user-friendly access to datasets that involve temporally ordered stages of disease or developmental stages

  7. Migrating the facility profile information management system into the world wide web

    Energy Technology Data Exchange (ETDEWEB)

    Kero, R.E.; Swietlik, C.E.

    1994-09-01

    The Department of Energy - Office of Special Projects and Argonne National Laboratory (ANL), along with the Department of Energy - office of Scientific and Technical Information have previously designed and implemented the Environment, Safety and Health Facility Profile Information Management System (FPIMS) to facilitate greater efficiency in searching, analyzing and disseminating information found within environment, safety and health oversight documents. This information retrieval based system serves as a central repository for full-text electronic oversight documents, as well as a management planning and decision making tool that can assist in trend and root cause analyses. Continuous improvement of environment, safety and health programs are currently aided through this personal computer-based system by providing a means for the open communication of lessons learned across the department. Overall benefits have included reductions in costs and improvements in past information management capabilities. Access to the FPIMS has been possible historically through a headquarters-based local area network equipped with modems. Continued demand for greater accessibility of the system by remote DOE field offices and sites, in conjunction with the Secretary of Energy` s call for greater public accessibility to Department of Energy (DOE) information resources, has been the impetus to expand access through the use of Internet technologies. Therefore, the following paper will discuss reasons for migrating the FPIMS system into the World Wide Web (Web), various lessons learned from the FPIMS migration effort, as well as future plans for enhancing the Web-based FPIMS.

  8. Odabir optimalne prostorne rezolucije fotogrametrijskih digitalnih modela površine za primjenu u šumarstvu – primjer s područja nizinskih šuma hrasta lužnjaka

    OpenAIRE

    Balenović, Ivan; Marjanović, Hrvoje

    2016-01-01

    Posljednjih godina digitalna aerofotogrametrija počinje se primjenjivati kao alternativna metoda zračnomu laserskomu skeniranju u trodimenzionalnom modeliranju šumskih površina, poglavito u izradi digitalnih modela površine (DSM-ova). Za potrebe inventure šuma DSM se uglavnom koristi u kombinaciji s digitalnim modelom reljefa, preklapanjem kojih se dobije digitalni model visine sastojina/krošanja (CHM) koji se potom koristi za procjenu različitih varijabli pojedinačnih stabala ili šumskih sas...

  9. Metodologija za ugotavljanje upravičenosti izvedbe krožnega križišča

    Directory of Open Access Journals (Sweden)

    Tomaž Tollazzi

    2005-01-01

    Full Text Available V nekaj manj kot dvajsetih letih so krožna križišča v Sloveniji postala zelo priljubljena, zadnjih nekaj let pa zanje velja, lahko bi rekli, že kar evforija. Trenutno imamo v Sloveniji eno krožno križišče na vsakih 68 km državnih cest, pričakovan pa je še nadaljnji porast njihovega števila. Glede na to, da so se v zadnjem času pričele pojavljati tudi posamezne neupravičene zahteve za izvedbo krožnih križišč in zahteve za izvedbo krožnih križišč na krajih, kjer njihova izvedba ni smiselna, se je pokazala potreba po umirjanju položaja. V prispevku je prikazana metodologija za ugotavljanje upravičenosti izvedbe krožnega križišča v urbanem okolju in v realnih okoliščinah, v katerih naj bi to stalo.

  10. SISTEMI ZA ČIŠČENJE FOTONAPETOSTNIH MODULOV

    OpenAIRE

    Džidić, Adnan

    2013-01-01

    V diplomskem delu so predstavljeni nanopremazi za čiščenje sončnih modulov kot učinkovita metoda za povečanje izplena proizvodnje električne energije sončnih modulov. Opisane so fizikalne osnove delovanja sončnih celic, ki so potrebne za osnovno razumevanje delovanja sončnih modulov. Nanopremazi zagotavljajo, da se umazanija in dežne kapljice ne zadržujejo na aktivni površini sončnih modulov in s tem zagotavljajo čistost površine. Na eksperimentalnem primeru je ovrednoten izplen proizvedene e...

  11. Validation through simulations of a C_n^2 profiler for the ESO/VLT Adaptive Optics Facility

    Science.gov (United States)

    Garcia-Rissmann, A.; Guesalaga, A.; Kolb, J.; Le Louarn, M.; Madec, P.-Y.; Neichel, B.

    2015-04-01

    The Adaptive Optics Facility (AOF) project envisages transforming one of the VLT units into an adaptive telescope and providing its ESO (European Southern Observatory) second generation instruments with turbulence-corrected wavefronts. For MUSE and HAWK-I this correction will be achieved through the GALACSI and GRAAL AO modules working in conjunction with a 1170 actuators deformable secondary mirror (DSM) and the new Laser Guide Star Facility (4LGSF). Multiple wavefront sensors will enable GLAO (ground layer adaptive optics) and LTAO (laser tomography adaptive optics) capabilities, whose performance can greatly benefit from a knowledge about the stratification of the turbulence in the atmosphere. This work, totally based on end-to-end simulations, describes the validation tests conducted on a C_n^2 profiler adapted for the AOF specifications. Because an absolute profile calibration is strongly dependent on a reliable knowledge of turbulence parameters r0 and L0, the tests presented here refer only to normalized output profiles. Uncertainties in the input parameters inherent to the code are tested as well as the profiler response to different turbulence distributions. It adopts a correction for the unseen turbulence, critical for the GRAAL mode, and highlights the effects of masking out parts of the corrected wavefront on the results. Simulations of data with typical turbulence profiles from Paranal were input to the profiler, showing that it is possible to identify reliably the input features for all the AOF modes.

  12. Přívěs za jízdní kolo

    OpenAIRE

    Polák, David

    2016-01-01

    Tato práce se zabývá přehledem přívěsných vozíků za kolo, které jsou dostupné na trhu a konstrukčním řešením vlastního vozíku pro kombinovanou přepravu. Dále obsahuje platnou legislativu pro provoz na pozemních komunikacích, základní výpočty a výkresovou dokumentaci vlastního návrhu. This work deals with an overview of bicycle multipurpose trailers, which are available on the Czech market and structural design of my own truck for combined cargo transport. It also contains valid legislation...

  13. SPECIFIČNOSTI UČENJA ZA PODUZETNIŠTVO U ONLINE OKRUŽENJU

    OpenAIRE

    Delač, Darko; Graovac, Petra; Pavlinović, Marta

    2016-01-01

    Živimo u vremenu kada su nove ideje i programi važni kako bi se držao korak sa suvremenizacijom i brzim načinom života. Tako poduzetništvo treba držati korak s potrebama na tržištima i omogućiti zainteresiranim sudionicima, koji nemaju vremena za klasične načine studiranja, alternativni način kako bi se i studijski programi mogli razvijati u skladu s vremenom u kojem živimo te kako bi studenti mogli nastaviti svoje visoko obrazovanje uz svoje ostale životne obveze. U tom pogledu, počeli su se...

  14. Pravica do svobode dela za invalide

    OpenAIRE

    2016-01-01

    Čeprav države in mednarodne skupnosti posvečajo posebno pozornost zaposlovanju invalidov, se le-ti v primerjavi z ostalimi ljudmi, še vedno soočajo z večjo brezposelnostjo, manjšimi možnostmi za uspešno kariero in slabšim plačilom. Tudi v Sloveniji imamo zakonske ukrepe in spodbude, ki so namenjene dvigu zaposljivosti invalidov in zagotavljanju enakih možnosti na področju zaposlovanja. V primerjavi z Veliko Britanijo, ki se osredotoča na enake možnosti invalidov pri zaposlovanju in delu ter t...

  15. Kinematická analýza posturálních změn v bipedálním stoji při aplikaci podnětu ze zevního prostředí a modifikaci vizuální scény u pacientů po plastice předního zkříženého vazu Kinematic analysis of postural changes in bipedal stance at application of stimulus from external environment and modifi cation of visual scene in patients with anterior cruciate ligament reconstruction

    Directory of Open Access Journals (Sweden)

    Miroslav Janura

    2007-01-01

    Full Text Available Tato studie se zabývá změnami postury při modifikované zrakové scéně a při aplikaci podnětu ze zevního prostředí u zdravých jedinců a u pacientů po plastice předního zkříženého vazu (LCA za nezměněné a modifi kované vizuální scény. Do vyšetřovaného souboru bylo zahrnuto 11 pacientů po plastice LCA a 14 zdravých jedinců. Modifi kace vizuální scény bylo dosaženo prostřednictvím speciálního optického systému Olympus – Eye trek FMD-700. Zevní podnět byl realizován pomocí nárazu letícího míče. K hodnocení posturálních změn jsme využili kinematickou analýzu. U pacientů po rekonstrukci LCA i u zdravých jedinců jsme nejvíce diferencí v jednotlivých způsobech provedení nalezli pro kinematické parametry na dolních končetinách a trupu. U obou skupin probandů jsme zaznamenali podobné tendence k posturálním změnám. Při porovnávání kinematických parametrů mezi skupinou pacientů a zdravých jedinců jsme nalezli rozdíly v poloze horních končetin. Pro dolní končetiny a trup (s výjimkou minimální velikosti úhlu bérec – stehno při modifi kované scéně s reálným podnětem nejsou rozdíly mezi oběma skupinami statisticky významné. Tears and rupture of the anterior cruciate ligament (ACL, which has an important function in knee joint stability, are very common and more so in sports. ACL injury can be managed in two ways. One alternative pertains to conservative therapy whereas the second variant is surgical intervention (reconstruction. The number of ACL reconstructions has risen recently. The purpose of this study was to analyze the postural changes in bipedal stance at application of a stimulus from external environment and the resultant modifi cation in the visual scene in patients with ACL reconstruction. The examined group consisted of 25 subjects – 11 patients with ACL reconstruction and 14 healthy adults. The external stimulus was realized by striking

  16. Ivan Nepomuk Cratey i njegov plan reforme poštanske službe u Dalmaciji 1804. godine

    OpenAIRE

    Škorić, Tihana

    2017-01-01

    U ovom radu analizira se reforma poštanske službe u Dalmaciji koju je 1804. godine u obliku izvještaja predstavio prvi upravitelj i ravnatelj pošte za Dalmaciju i Albaniju,1 Ivan Nepomuk Cratey. Kao izvorno arhivsko gradivo, izvještaj je u potpunosti sačuvan i pohranjen u Allgemeines Verwaltungsarchiv u Beču. Njegova analiza nije važna samo zato što daje odgovor na mnoga pitanja vezana za povijest i razvoj poštanske službe u Dalmaciji, već i zato što rasvjetljava političku, gospodarsku i druš...

  17. Zaštita objekata i nadgledanje prostora pasivnim multisenzorskim elektronskim sistemima / Security protection and area monitoring by passive multi-sensor systems

    Directory of Open Access Journals (Sweden)

    Miodrag Vujanović

    2004-05-01

    Full Text Available Analizom savremenih borbenih dejstava uočava se više značajnih karakteristika koje predstavljaju opšte, zajedničko obeležje svih savremenih operacija. Dominantna je, svakako, karakteristika sveobuhvatnosti borbenih dejstava i po prostoru i po vremenu. To znači da za uspešno vođenje savremenih operacija treba, u svakom trenutku, raspolagati pouzdanim podacima o svim aktivnostima u prostoru (kretanje ljudstva, tehnike, njihove pozicije, meteorološki podaci, itd. Ove podatke generišu, na osnovu odgovarajućih detektovanih parametara, savremeni elektronski multisenzorski sistemi disperzirani u prostoru. U radu su izložene osnovne karakteristike sistema za zaštitu objekata i prostora koji se koriste u savremenim armijama. Dat je prikaz aktivnosti Vojnotehničkog instituta u realizaciji sistema PRESEK, koji je namenjen za perimetarsku zaštitu objekata i prostora. Izložena je i koncepcija novog multisenzorskog sistema za zaštitu objekata i prostora, čiji je osnovni uređaj univerzalna akviziciona platforma, koja treba da prihvati različite vrste pasivnih senzora i omogući pasivno ili aktivno nadgledanje prostora prenosom TV slike. / Analyzing modern low level intensity wars and crises, we find some important characteristics that are similar or same for each one. The most dominant are combat actions in whole space without time limitations which means that, if you want to be successful in predicting enemy's activities, you continually need to know about enemy's activities in battlefield (people moving, moving of armor vehicles, artilleries and their positions, meteorological data etc. That kind of data is successfully obtained by passive multi-sensor systems dispersed in space of expected battle. We will introduce the philosophy of modern systems that are in use in NATO armies, activities of Military Technical Institute in realization of such a system named PRESEK and developing of new passive multisensor system with CCTV.

  18. The ZaP Flow Z-Pinch Project

    Science.gov (United States)

    Shumlak, U.; Golingo, R. P.; Nelson, B. A.; Crawford, E. A.; Forbes, E. T.; den Hartog, D. J.; Holly, D. J.; Nagata, M.

    2000-10-01

    Linear analysis shows that a sheared axial plasma flow can stabilize the m=1 kink instability in Z-pinches. This threshold value of flow shear can be satisfied with a peak flow velocity which is less than the Alfven speed for wavelengths typically seen in Z-pinch plasmas. Nonlinear simulations support the stabilizing effect. The ZaP Flow Z-Pinch Project seeks to experimentally verify this theory by generating Z-pinch plasmas with an inherent axial flow. The experiment produces Z-pinch plasmas which are 50 cm in length by initiating the plasma with a one meter coaxial gun. The coaxial gun generates the axial plasma flows. After leaving the coaxial gun the plasma assembles along the axis to form a flow Z-pinch. Magnetic probes measure the acceleration and assembly process, as well as, the evolution of the azimuthal mode fluctuation level. Axial flow profiles are determined by measurements of the Doppler shifts of impurity lines. Time-dependent density measurements are made using a laser interferometer. Gross plasma motion is determined by using a fast framing camera to detect visible emission. Recent results show a period of diminished fluctuation level when the plasma flow velocity is large. An overview of the experimental program and results will be presented.

  19. High intensity profile monitor for time resolved spectrometry at the CLIC Test Facility 3

    Science.gov (United States)

    Olvegård, M.; Adli, E.; Braun, H. H.; Bravin, E.; Chritin, N.; Corsini, R.; Dabrowski, A. E.; Döbert, S.; Dutriat, C.; Egger, D.; Lefèvre, T.; Mete, O.; Skowronski, P. K.; Tecker, F.

    2012-08-01

    The power source of the Compact LInear Collider (CLIC) relies on the generation and deceleration of a high-intensity electron drive beam. In order to provide the best radio-frequency (RF) to beam-energy transfer efficiency, the electron beam is accelerated using fully loaded RF cavities, which leads to strong beam loading effects resulting in a high-energy transient. The stability of the RF power produced by the drive beam depends on the stability of the drive beam energy and energy spread along the pulse. The control and the monitoring of the time evolution of the beam energy distribution are therefore crucial for the accelerator performance. For this purpose segmented beam dumps, which are simple and robust devices, have been designed and installed at the CLIC Test Facility 3 (CTF3). These devices are located at the end of spectrometer lines and provide horizontal beam profiles with a time resolution better than 10 ns. The segmented dumps are composed of parallel, vertical, metallic plates, and are based on the same principle as a Faraday cup: the impinging beam current is read by a fast acquisition channel. Both FLUKA and Geant4 simulations were performed to define the optimum detector geometry for beam energies ranging from 5 MeV to 150 MeV. This paper presents a detailed description of the different steps of the design: the optimization of the detector spatial resolution, the minimization of the thermal load and the long-term damage resulting from high radiation doses. Four segmented dumps are currently used in the CTF3 complex. Their measured performance and limitations are presented in this paper. Typical beam spectra as measured in the CTF3 linac are also presented along with a description of the RF manipulations needed for tuning the beam energy spectrum.

  20. Uniform Free-Energy Profiles of the P-O Bond Formation and Cleavage Reactions Catalyzed by DNA Polymerases β and λ.

    Science.gov (United States)

    Klvaňa, Martin; Bren, Urban; Florián, Jan

    2016-12-29

    Human X-family DNA polymerases β (Polβ) and λ (Polλ) catalyze the nucleotidyl-transfer reaction in the base excision repair pathway of the cellular DNA damage response. Using empirical valence bond and free-energy perturbation simulations, we explore the feasibility of various mechanisms for the deprotonation of the 3'-OH group of the primer DNA strand, and the subsequent formation and cleavage of P-O bonds in four Polβ, two truncated Polλ (tPolλ), and two tPolλ Loop1 mutant (tPolλΔL1) systems differing in the initial X-ray crystal structure and nascent base pair. The average calculated activation free energies of 14, 18, and 22 kcal mol(-1) for Polβ, tPolλ, and tPolλΔL1, respectively, reproduce the trend in the observed catalytic rate constants. The most feasible reaction pathway consists of two successive steps: specific base (SB) proton transfer followed by rate-limiting concerted formation and cleavage of the P-O bonds. We identify linear free-energy relationships (LFERs) which show that the differences in the overall activation and reaction free energies among the eight studied systems are determined by the reaction free energy of the SB proton transfer. We discuss the implications of the LFERs and suggest pKa of the 3'-OH group as a predictor of the catalytic rate of X-family DNA polymerases.

  1. Strategická analýza Citibank a. s.

    OpenAIRE

    Boháčová, Michaela

    2007-01-01

    Bakalářská práce si za svůj cíl vytyčila problematiku strategické analýzy, která je důležitou součástí tvorby strategie. Výstupem strategické analýzy je SWOT analýza. Na závěr práce jsou uvedeny a zhodnoceny používané strategie, které utváří rámec hospodaření Citibank a. s. Stručný obsah: 1. Strategická analýza 1.1. Externí analýza 1.2. Interní analýza 1.3. SWOT analýza 2. Vize a poslání Citibank 3. Zhodnocení zvolené strategie 3.1. Konkurenční strategie 3.2. Investiční strategie 3.3. Strateg...

  2. Cannabinoid-free Cannabis sativa L. grown in the Po valley: evaluation of fatty acid profile, antioxidant capacity and metabolic content.

    Science.gov (United States)

    Lesma, G; Consonni, R; Gambaro, V; Remuzzi, C; Roda, G; Silvani, A; Vece, V; Visconti, G L

    2014-01-01

    Within a project aimed to reintroduce non-drug hemp cultivars in the Italian Po valley, for fibre but also high added-value nutraceutical production, investigation on locally grown plants has been performed, in order to assess their oil and metabolic content. This study provides useful information regarding three different hemp cultivars, from two sites, in view of their potential industrial application. The oil was characterised by a high unsaturated/saturated fatty acid ratio and by an almost perfect balance of ω-3 and ω-6 fatty acids, as requested for healthy foods. The alcoholic extracts, for which a high content of amino acids and phenolic compounds has been highlighted, could provide dietary supplements to help in preventing oxidative stress. By investigating the Carmagnola cultivar, six known and four new lignanamides have been identified, confirming and assessing the general metabolic pattern in the seeds of these locally grown plants.

  3. Fifty-Five years of Pediatric Endocrinology and 50 years of the Department of Pediatric Endocrinology, Diabetes and Metabolic Diseases in Slovenia / 55 Let Pediatrične Endokrinologije in 50 Let Kliničnega Oddelka Za Endokrinologijo, Diabetes in Presnovne Bolezni Pediatrične Klinike

    Directory of Open Access Journals (Sweden)

    Battelino Tadej

    2015-03-01

    Full Text Available Pediatrična endokrinologija je začela s svojim neodvisnim razvojem zgodaj v splošnem razvoju te specilanosti, z izrazitim poudarkom na raziskovalnemu delu in klinični odličnosti. Slovenska pediatrična endokrinologija je bila že od začetkov evropske pediatrične endokrinologije njen sestavni del, še posebej kot soustanoviteljica prve mednarodne skupine ‘International Study Group for Diabetes in Children and Adolescents’. Po pionirskem delu prof. dr. Leva Matajca je prof. dr. Ciril Kržišnik KO za endokrinologijo, diabetes in bolezni presnove Pediatrične klinike v Ljubljani trdno vpel v mednarodno znanstveno skupnost. V zadnjem desetletju KO sodeluje pri vrhunskem raziskovalnem delu in zagotavlja klinično oskrbo po najvišjih mednarodnih standardih.

  4. Technická analýza

    OpenAIRE

    Kosek, Lukáš

    2014-01-01

    Diplomová práce se zabývá problematikou technické analýza a jejího využití při tvorbě automatických obchodních systémů. V teoretické části práce jsou vysvětleny základní principy fungování měnového trhu (Forex) a technických identifikátorů. Výstupem práce je portfolio strategií, které je aplikováno na měnové páry Euro/Americký dolar a Britská libra/Americký dolar. Obchodní strategie jsou navrhnuté v programu Adaptrade Builder pomocí genetických algoritmů a následně otestované v obchodní platf...

  5. Uporaba didaktične aplikacije za izračunavanje fizikalnih enačb v operacijskem sistemu android pri pouku fizike

    OpenAIRE

    Ravnjak, Nejc

    2016-01-01

    Sodobne oblike poučevanja vedno več zahtevajo uporabo pametnih telefonov ter tablic. Na eni izmed najbolj razširjenih platform (Android) obstaja veliko število aplikacij ki lahko služijo temu namenu in na takšen način omogočajo povečanje zanimanja otrok za učenje, lažje učenje in hitrejše računanje. Ob preučitvi teh aplikacij opazimo da je potrebno raziskati in ustvariti model, po katerem je možno napraviti android aplikacije, za razvijalce aplikacij naslednje generacije. Aplikacije v prihodn...

  6. Determination of density profiles of unevenly compressed wood of Po­pu­lus tremula using the X – RAY DENSE – LAB laboratory device

    Directory of Open Access Journals (Sweden)

    Aleš Dejmal

    2009-01-01

    Full Text Available The paper deals with the measuring of the density profile of unevenly pressed wood of European aspen (Populus tremula L.. The main aim of the work is to examine in an experimental way the possibilities of using the X – RAY DENSE – LAB laboratory equipment designed for the determination of density profiles of agglomerated and plied large-area materials. The work uses the X – RAY DENSE – LAB equipment to determine the density profile of the cross-section of unevenly pressed aspen wood, plasticized hydrothermically, without the presence of chemical substances. The work also presents calculations of the level of compression/densification in dependence on the density and it describes the factors that can influence the density profile of compressed/densified wood; at the same time, it presents the possible ways to determine the density profile in the cross-section. Further, it includes the creation of the methodology for sample preparation so that the results do not get distorted during measuring. It describes the preparation of sample pieces, the orientation of the anatomic structure, the methodology of pressing, air conditioning, sample preparation, their measuring and analysis. The paper also describes the theory and the principles of measuring with use of X – RAY DENSE – LAB and its calibration. The paper analyses the obtained results of density profiles and searches for and describes the causes of the uneven distribution of the density in the cross-section. It concludes by summarizing the results and recommending the procedure for future measuring.

  7. Peta obletnica prve slovenske revije za izobrazevanje odraslih

    Directory of Open Access Journals (Sweden)

    Ana Kranjc

    2000-12-01

    Full Text Available RevijaAndragoška spoznanja, prva slovenska revija za izobraževanje odraslih, praznuje peto obletnico izhajanja. Člani uredniškega odbora se skupaj z avtorji in bralci veselimo tega jubileja. Pred očmi imamo začetna prizadevanja, da je revija sploh nastala, in nato prizadevanja za njen obstoj, pri pridobivanju novih sodelavcev, širjenju kroga bralcev in zagotavljanju materialnih sredstev, pri čemer ne smemo pozabiti tudi na občasne težave. Večina truda pa je bila posvečena temu, da bi revija opravljala svoje osnovno poslanstvo.

  8. Eksperimentalno ispitivanje svojstava tetrafluoretilena za izradu dentalnih implantata

    OpenAIRE

    1983-01-01

    Ispitivana je reakcija tkiva na tetrafluoretilen, s namjerom da se istraži mogućnost njegove upotrebe za konstrukciju dentalnih implantata. Pokusi su vršeni na miševima, kojima je uz bedrenu kost usađen implantat. Životinje su usmrćene u određenim vremenskim razmacima, a komadići tkiva koji su okruživali implantat pripremljeni su za histološku analizu. Kontrastnost Teflona ispitana je rendgenološki na izvađenim ljudskim zubima u koje je bio ugrađen implantat. Rezultati su pokazali da je Teflo...

  9. IZDELAVA SPLETNE STRANI S SPLETNIM SISTEMOM ZA UREJANJE VSEBIN WEEBLY

    OpenAIRE

    Remškar, Urša

    2016-01-01

    S tem diplomskim delom smo želeli spoznati zakonitosti delovanja spletnega sistema za urejanje spletnih vsebin Weebly in z njegovo pomočjo izdelati spletišče za podjetje Urko Fishing Adventures, ki še nima lastnih spletnih strani. Te so v prvi vrsti namenjene predstavitvi ponudbe in enostavnejši komunikaciji z domačimi, predvsem pa tujimi strankami, ki jih zanima športni ribolov na slovenskih rekah. Izdelava spletišča je zajemala več korakov od zasnove projekta, njegovega vodenja in organizac...

  10. ORGANIZACIJSKA KLIMA V INŠPEKTORATU RS ZA NOTRANJE ZADEVE

    OpenAIRE

    Ščurec, Barbara

    2011-01-01

    Organizacijska klima predstavlja način, kako zaposleni razumejo sistem v organizaciji. Za vsako podjetje je zelo pomembna organizacijska klima, ki trenutno vlada. Organizacijska klima je skupno ime za način vedenja in zaznavanje medsebojnih odnosov v organizaciji. Klima predstavlja trenutno stanje v organizaciji in jo proučujemo na podlagi vprašalnikov. Pomaga nam spoznati različnost človekovega vedenja v organizaciji. Zato si podjetja prizadevajo uresničiti takšno klimo, ki bi nudila najbolj...

  11. PRIMERJAVA DVEH METOD ZA MERJENJE ZADOVOLJSTVA GOSTOV V HOTELIH

    OpenAIRE

    Osterc, Miša

    2016-01-01

    Zadovoljstvo gostov je ključni element za uspešen razvoj in dolgoročen obstoj kateregakoli hotelskega podjetja, zato mora biti njihovo doseganje tudi glavni cilj vsakega hotela. Pri tem je potrebno upoštevati, da zagotavljanje zadovoljstva gostov zahteva dobro poznavanje želja in pričakovanj vsakega gosta, zato je merjenje, analiziranje in spremljanje zadovoljstva eden najpomembnejših izzivov pri pripravi strategije poslovanja vsakega hotela. To velja tudi za Hotel Bioterme Mala Nedelja,...

  12. Kdo se izobražuje za partnerske odnose?

    Directory of Open Access Journals (Sweden)

    Natasa Rijavec Klobučar

    2004-12-01

    Full Text Available V prispevku avtorica analizira znacilnosti udelezencev izobrazevanja za partnerske odnose, ki obiskujejo Solo za zakon. Podatke interpretira v skladu s sistemsko relacijsko teorijo, ki cloveka ne obravnava posamicno, marveč z vidika odnosov, ki jih dejavno oblikuje z drugimi. Rezultati raziskave kazejo, da so moski bolj zadovoljni s partnerskim odnosom kot zenske. Oboji pricakujejo, da bo izobrazevanje pomagalo izboljsati njihove partnerske odnose, ne pa tudi komunikacije z otroki. Svoje odnose vecinoma dozivljajo kot konfliktne. 0 tem prica tudi dejstvo, da jih najbolj privlacijo teme, ki pojasnjujejo genezo konfliktov in obravnavajo naCine reševanja.

  13. UPORABA ANALITIČNEGA HIERARHIČNEGA PROCESA ZA OCENJEVANJE KMETIJSKO-OKOLJSKIH UKREPOV PROGRAMA ZA RAZVOJ PODEŽELJA

    OpenAIRE

    Huehner, Monica Rudawiro

    2015-01-01

    V številnih primerih in rezultatih, ki smo jih pridobili v pričujoči doktorski disertaciji, smo eno prioritetno učinkovitost dodelili številnim kmetijsko-okoljskim ukrepom za doseganje osrednjega cilja, za ocenjevanje kmetijsko-okoljskih ukrepov. S tem smo dokazali, da so ti ukrepi enakovredno prispevali k doseganju osrednjega cilja. Rezultati, ki smo jih pridobili pri ocenjevanju, jasno kažejo, da ekološke in integrirane metode kmetijske pridelave najpomembneje prispevajo k doseganju zastavl...

  14. Consumer satisfaction with the services of prosthetics and orthotics facilities

    NARCIS (Netherlands)

    Bosmans, Joline; Geertzen, Jan; Dijkstra, Pieter U.

    2009-01-01

    Consumer satisfaction with the services provided in a prosthetics and orthotics (PO) facility has seldom been studied. The aim of this study was to analyze consumer satisfaction regarding the services provided by 15 PO facilities in The Netherlands. Consumers (n=1,364) of these PO facilities who wer

  15. Consumer satisfaction with the services of prosthetics and orthotics facilities

    NARCIS (Netherlands)

    Bosmans, Joline; Geertzen, Jan; Dijkstra, Pieter U.

    2009-01-01

    Consumer satisfaction with the services provided in a prosthetics and orthotics (PO) facility has seldom been studied. The aim of this study was to analyze consumer satisfaction regarding the services provided by 15 PO facilities in The Netherlands. Consumers (n=1,364) of these PO facilities who

  16. Nova ovlaštenja o osposobljenosti za obavljanje dužnosti časnika palube potrebna poradi ažuriranja STCW konvencije

    OpenAIRE

    2007-01-01

    IMO je početkom 1980. godine zatražio jedinstvene međunarodne standarde za osposobljenost pomoraca. Nakon 15 godina bilo je potrebno revidirati STCW Konvencije iz 1978.godine, pa je 1995.godine usvojena nova STCW Konvencija. U poskljednjih 15 godina zapovjednički je most na brodu doživio promjene, došlo je do primijene novih tehnologija s ciljem da se poveća sigurnost plovidbe. Mislimo da je sada došlo vrijeme da se revidiraju i neki od zahtjeva STCW Konvencije iz 1995.godine, a koje se odnos...

  17. Effect of Zr on behavior of compressive creep in as cast ZA27 alloy

    Institute of Scientific and Technical Information of China (English)

    魏晓伟; 沈保罗

    2003-01-01

    The effect of Zr on the behavior of compressive creep in as cast ZA27 alloy was investigated in the temperature range of 20-160 ℃ and under different compressive stresses in the range of 50-137.5 MPa with special apparatus. The results show that the primary compressive creep strains and steady creep rates of ZA27-Zr alloy and ZA27 alloy increase with increasing temperature and stress. However, the primary compressive creep strain and steady creep rate of the ZA27-Zr alloy are lower than that of the ZA27 alloy below 100 ℃, but higher at 160 ℃. The compressive creep behaviors in both ZA27-Zr alloy and ZA27 alloy obey an empirical equation lnt=C-nlnσ+Q/RT, and the exponent stress n is 3.63 for ZA27-Zr alloy and 3.46 for ZA27 alloy, respectively, the activation energy Q is 87.32 kJ/mol for ZA27-Zr alloy and 81.09 kJ/mol for ZA27 alloy. Different material structural constants are associated with different compressive creep behaviors in the alloy. The compressive creep rate in the alloy is controlled by the lattice diffusion of zinc and dislocation limb.

  18. Den za Dnjom võib omanikku vahetada / Dannar Leitmaa

    Index Scriptorium Estoniae

    Leitmaa, Dannar, 1982-

    2008-01-01

    Eesti populaarsemat venekeelset nädalalehte Den za Dnjom välja andva OÜ Merger Meedia juhi Andres Tiisleri sõnul käivad läbirääkimised ajalehe müügiks. Krediidiinfo andmetel on ettevõtte maksuvõlg 1,225 miljonit krooni

  19. Analysis of behaviour of transonic profiles with strong curvature: Test facilities, instrumentation, test results, theoretical interpretations

    Energy Technology Data Exchange (ETDEWEB)

    Pittaluga, G.; Benvenuto, G. (Udine Univ. (Italy); L' Aquila Univ. (Italy))

    1988-06-01

    Relevant to experimental investigations on the performance of a transonic turbine blade cascade, this paper discusses recent developments regarding the following topics: the experimental equipment and relative instrumentation; the results of tests on turbine blade cascades; the conceptual methods specifically developed and aimed at the optimized design of steam turbines systems and turbine blades; the theoretical-numerical procedures developed and applied as supports for theoretical-experimental analyses and the redesign of blade profiles to increase efficiency.

  20. Konstrukce zařízení pro vakuové lisování plastů

    OpenAIRE

    Chlup, Pavel

    2009-01-01

    Tato diplomová práce se zabývá konstrukčním návrhem zařízení pro vakuové lisování plastů jakožto významné metody zpracování plastových polotovarů. V rešeržní části diplomové práce je popsán princip této metody, oblast využití mezi ostatními technologiemi zpracování plastů, základní informace týkající se používaných polotovarů a tvářecích forem. Jsou navrženy tři varianty řešení. Po zhodnocení těchto variant je zvolena konečná podoba zařízení. Samotná konstrukční práce obsahuje návrh vakuového...

  1. Fundamentální analýza numerických dat pro automatický trading

    OpenAIRE

    Huf, Petr

    2016-01-01

    Tato práce se zabývá využitím fundamentální analýzy v automatickém obchodování. Technická analýza využívá k predikci ceny hlavně její historické hodnoty a indikátory z této ceny odvozené. Fundamentální analýza naopak využívá informace z různých zdrojů k predikci cenového signálu, přičemž v této práci byly zkoumány pouze kvantitativní zdroje dat. Konkrétně se jedná o počasí, Forex, Google Trends, WikiTrends, historické ceny různých futures a souhrnná fundamentální data (porodnost, migrace, \\do...

  2. Characterization of global metabolic profile of Zhi-Zi-Hou-Po decoction in rat bile, urine and feces after oral administration based on a strategy combining LC-MS and chemometrics.

    Science.gov (United States)

    Luo, Kaiwen; Shi, Qingshui; Feng, Fang

    2017-01-01

    Identification of metabolic profile of traditional Chinese medicine in vivo is always a challenge task. Usually, screening out and identifying the exogenous compounds manually from total ion chromatograms (TICs) of biologic samples is time-consuming and strenuous. In this study, a systematic identification strategy based on LC-MS was adopted to clarify the metabolic profiling of Zhi-Zi-Hou-Po decoction (ZZHPD) in rat. Bile, urine and feces samples of rat were obtained after oral administration and then analyzed by LC-MS after proper preparation. The xenobiotics were screened out from TICs globally and rapidly by untargeted metabolomics-driven strategy (UMDS) based on the combined of XCMS online (a web-based platform to process LC-MS data), MetAlign (a software to process LC-MS data) and SIMCA-P (a software for data analysis). Most of the xenobiotics were identified by means of series product ions filtering (sPIF), which was based on the database-hit of ZZHPD (including prototype and metabolites). Then the unmatched constituents were identified tentatively and their source and metabolic pathway were clarified by using diagnostic fragment ions strategy (DFIS). As a result, a total of 83 compounds including 44 prototype compounds and 39 metabolites were rapidly identified or tentatively characterized from the biologic samples, and among them, four of which were found for the first time. Further research on the correlations of these prototype compounds and metabolites revealed that glucuronidation is the main metabolic pathways of ZZHPD in rat bile and urine, while prototype compounds were the abundant ingredients detected in rat feces.

  3. Silicon detectors for the neutron flux and beam profile measurements of the n_TOF facility at CERN

    Science.gov (United States)

    Musumarra, Agatino; Cosentino, Luigi; Barbagallo, Massimo; Colonna, Nicola; Damone, Lucia; Pappalardo, Alfio; Piscopo, Massimo; Finocchiaro, Paolo

    2016-09-01

    The demand of new and high precision cross section data for neutron-induced reactions is continuously growing, driven by the requirements from several fields of fundamental physics, as well as from nuclear technology, medicine, etc. Several neutron facilities are operational worldwide, and new ones are being built. In the coming years, neutron beam intensities never reached up to now will be available, thus opening new scientific and technological frontiers. Among existing facilities, n_TOF at CERN provides a high intensity pulsed neutron beam in a wide energy range (thermal to GeV) and with an extremely competitive energy resolution that also allows spectroscopy studies. In order to ensure high quality measurements, the neutron beams must be fully characterized as a function of the neutron energy, in particular by measuring the neutron flux and the beam transverse profile with high accuracy. In 2014 a new experimental area (EAR2), with a much higher neutron flux, has been completed and commissioned at n_TOF. In order to characterize the neutron beam in the newly built experimental area at n_TOF, two suitable diagnostics devices have been built by the INFN-LNS group. Both are based on silicon detectors coupled with 6Li converter foils, in particular Single Pad for the flux measurement and Position Sensitive (strips and others) for the beam profile. The devices have been completely characterized with radioactive sources and with the n_TOF neutron beam, fulfilling all the specifications and hence becoming immediately operational. The performances of these devices and their high versatility, in terms of neutron beam intensity, make them suitable to be used in both n_TOF experimental areas. A description of the devices and the main results obtained so far will be presented.

  4. po_stack_movie

    DEFF Research Database (Denmark)

    2009-01-01

    po_stack® er et reolsystem, hvis enkle elementer giver stor flexibilitet, variation og skulpturel virkning. Elementerne stables og forskydes frit, så reolens rum kan vendes til begge sider, være åbne eller lukkede og farvekombineres ubegrænset. Reolen kan let ombygges, udvides eller opdeles, når ...

  5. Ekonomická analýza řezného nástroje

    OpenAIRE

    Bilavčík, Jaromír

    2009-01-01

    Bakalářská práce na téma „Ekonomická analýza řezného nástroje“ je věnována ekonomické analýze nákladů na pořízení a použití různých druhů řezných nástrojů, jejichž použití má významný vliv na ekonomiku výroby a mimo jiné také s náklady spojenými s jakostí výsledného produktu. Rozborem použitelnosti užitných vlastností jednotlivých nástrojů, které jsou používané ve strojním obrábění byla analyzována ekonomická výhodnost pro firmy. Toto kriterium musí firmy zohlednit již při technologické přípr...

  6. Analiza primene IMM algoritma za praćenje manevrišućih ciljeva / Analysis of IMM algorithm for maneuvering target tracking

    Directory of Open Access Journals (Sweden)

    Zvonko Radosavljević

    2005-05-01

    Full Text Available U radu je analizirana primena IMM algoritma sa tri modela Kalmanovih filtara, za praćenje cilja pomoću osmatračkog radara. Prvi Kalmanov filtar podešen je da prati ciljeve koji se kreću po pravolinijskoj trajektoriji bez ubrzanja, drugi prati ciljeve koji se kreću ubrzano i vrše blag manevar, a treći je namenjen za praćenje ciljeva koji se kreću ubrzano i vrše oštar manevar. Dat je opis algoritma kao i vrednosti odgovarajućih parametara i matrica prelaza za Kalmanove filtre, kao i uporedna analiza algoritma u odnosu na standardan Kalmanov filtar šestog reda. Prikazani rezultati srednje kvadratne greške praćenja po x i у koordinati pokazuju opravdanost izbora predložene metode praćenja. / This paper considers comparative analysis the problem of maneuvering target tracking to IMM algorithm with 3 standard Kalman filters and same standard Kalman filter 6. order, using data from TWS radar. The first Kalman filter from IMM algorithms is tuned for tracking of target moving along the rectilinear trajectory -without acceleration, the second tracks the targets with acceleration and gentle maneuver, and the third Kalman filter tracks the target with acceleration and sharp maneuver. The mathematical model of algorithm and values of appropriate parameters and Kalman filter matrices, are presented. The results of RMSE of tracking in x and у coordinates, show the validity of the proposed method.

  7. ANALIZA IN UPORABA ORODIJ CAAT ZA REVIZIJO INFORMACIJSKIH SISTEMOV

    OpenAIRE

    2010-01-01

    V diplomski nalogi smo predstavili in uporabili orodja CAAT, ki služijo kot pomoč pri revidiranju informacijskih sistemov. Predstavili smo tri orodja, to so IDEA, TopCAATs in ACL. Povzeli smo njihove temeljne funkcije, ki so uporabne pri revidiranju. V nadaljevanju smo sestavili testni primer na katerem smo preizkusili vsako izmed omenjenih orodij. Tako smo ugotovili prednosti in slabosti teh orodij na sploh, ter za vsakega posebej.

  8. IZDELAVA IGRALNEGA POGONA IN UREJEVALNIKA ZA IZDELAVO 2D IGER

    OpenAIRE

    Kerec, Bojan

    2015-01-01

    V tem magistrskem delu predstavimo postopek izdelave igralnega pogona. Nalogo začnemo z opsiom razvoja igralnih pogonov skozi čas in pregledom obstoječih rešitev. Nato podamo prednosti in slabosti izdelave lastnega igralnega pogona in ovrednotimo smotrnost izbire že obstoječega igralnega pogona. Nadaljujemo s predstavitvijo igralnega pogona, ki smo ga razvili. Predstavimo arhitekture in organizacije sistemov igralnega pogona, podamo kratek pregled implementacije najpomembnejših sistemov in ...

  9. Prenosna peć za pečenje hleba - u funkciji obezbeđenja ishrane pripadnika vojske Srbije u mirovnim misijama/Movable oven for bread baking intended for food preparation in Serbian army peace corps

    Directory of Open Access Journals (Sweden)

    Branko M. Tešanović

    2014-10-01

    Full Text Available Peć za pečenje hleba u poljskim uslovima dodeljuje se jedinicama koje su po svom karakteru relativno stacionarne i kojima po veličini ne bi pripadale pokretne peći. Podesna je za pečenje hleba namenjenog jedinicama koje se nalaze u međunarodnim misijama, u uslovima otežanog snabdevanja, jer navike naših vojnika su da konzumiraju hleb, a ne keks. Peć je montažno-demontažnog tipa, prilagođena za korišćenje na svim vrstama terena. Jednostavne je konstrukcije, što omogućava da se demontira i lako prenosi sa mesta na mesto. / An oven for baking bread in field conditions is assigned to units that are by their nature relatively stationary and whose size does not require a movable bakery. It is intended for baking bread in our units located in international missions with supply difficulties, since our units have a habit od consuming bread instead of biscuits. The oven is of a prefabricated type, adapted for use in all types of terrains, simple design which makes it possible to be, dismantled and easily transported.

  10. Utjecaj materijala za pakiranje na kvalitetu Kačkavalja

    Directory of Open Access Journals (Sweden)

    Goce Talevski

    2017-02-01

    Full Text Available U ovom radu ispitivan je utjecaj različitog ambalažnog materijala (A - kontrolni uzorak, B - polimerna emulzija, C - vosak i D - polimerna folija na kvalitetu Kačkavalja. Najnižu pH vrijednost imao je uzorak zaštićen voskom, što je rezultat zadržavanja nastalih organskih kiselina i plinova od strane ambalažnog materijala. Statistički značajan utjecaj ambalažnih materijala (p<0.01 bio je utvrđen kod sadržaja suhe tvari, proteina i pepela, dok statistička značajnost nije bila utvrđena kod sadržaja masti kod Kačkavalja. Proteolitički procesi bili su izraženiji kod uzorka zaštićenog voskom i polimernom folijom, s višim razinama topljivog dušika, primarnih i sekundarnih dušičnih spojeva i koeficijenta zrelosti u odnosu na kontrolni uzorak i uzorak zaštićen polimernom emulzijom.

  11. El proyecto de arquitectura : El rigor científico como instrumento poético

    OpenAIRE

    Pina Lupiáñez, Rafael

    2011-01-01

    EL PROYECTO DE ARQUITECTURA. El rigor científico como instrumento poético Resumen. El punto de atención principal del presente trabajo, se fija, como indica el propio título, en el proyecto arquitectónico. Entre las diferentes acepciones que adquiere el término proyecto, interesa especialmente aquella que se refiere al proceso mediante el cual la arquitectura se piensa y se genera. Saenz de Oíza, citando a Unamuno, considera el proyecto como problema, es decir, como a...

  12. Facile method for modulating the profiles and periods of self-ordered three-dimensional alumina taper-nanopores.

    Science.gov (United States)

    Li, Juan; Li, Congshan; Chen, Cheng; Hao, Qingli; Wang, Zhijia; Zhu, Jie; Gao, Xuefeng

    2012-10-24

    We report a facile nanofabrication method, one-step hard anodizing and etching peeling (OS-HA-EP) of aluminum foils followed by multistep mild anodizing and etching pore-widening (MS-MA-EW), for the controllable tailoring of hexagonally packed three-dimensional alumina taper-nanopores. Their profiles can be precisely tailored by the synergistic control of anodizing time, etching time and cyclic times at the MS-MA-EW stage, exemplified by linear cones, whorl-embedded cones, funnels, pencils, parabolas, and trumpets. Meantime, their periods can also be modulated in the range of 70-370 nm by choosing matched anodizing electrolytes (e.g., H(2)C(2)O(4), H(2)SO(4), H(2)C(2)O(4)-H(2)SO(4), and H(2)C(2)O(4)-C(2)H(5)OH mixture) and anodizing voltages at the OS-HA-EP stage. We also demonstrated that the long-range ordering of nanopits and the peak voltage of stable self-ordered HA, which are unachievable in a single H(2)C(2)O(4) electrolyte system, can be effectively tuned by simply adding tiny quantity of H(2)SO(4) and C(2)H(5)OH to keep an appropriate HA current density, respectively. This method of using the combination of simple pure chemical nanofabrication technologies is very facile and efficient in realizing the controllable tailoring of large-area alumina membranes containing self-ordered taper-nanopores. Our work opens a door for exploring the novel physical and chemical properties of different materials of nanotaper arrays.

  13. Priročnik za razvojno psihologijo v programu predšolska vzgoja

    OpenAIRE

    Potočnik, Nejc; Batistič Zorec, Marcela; Prosen, Simona

    2015-01-01

    Priročnik, namenjen študentom 1. letnika programa predšolska vzgoja, vsebuje navodila za vaje, integrirano prakso in seminarje ter strokovna besedila. Poleg splošnih navodil za seminarje in vaje, vsebuje tudi posamezna navodila za šest nalog, ki jih študentje opravijo v vrtcu v okviru integrirane prakse. Študent oz. študentka mora pred začetkom vaje in izvedbo praktične naloge na določeno temo prebrati ustrezno strokovno besedilo. Vaje in strokovna besedila obravnavajo naslednje teme: opazova...

  14. KPr(PO34

    Directory of Open Access Journals (Sweden)

    Abdelghani Oudahmane

    2010-08-01

    Full Text Available Single crystals of the title compound, potassium praseodymium(III polyphosphate, were obtained by solid-state reaction. The monoclinic non-centrosymmetric structure is isotypic with all other KLn(PO34 analogues from Ln = La to Er, inclusive. The crystal structure of these long-chain polyphosphates is built up from infinite crenelated polyphosphate chains of corner-sharing PO4 tetrahedra with a repeating unit of four tetrahedra. These chains, running along [100], are arranged in a pseudo-tetragonal rod packing and are further linked by isolated PrO8 square antiprisms [Pr—O = 2.3787 (9–2.5091 (8 Å], forming a three-dimensional framework. The K+ ions reside in channels parallel to [010] and exhibit a highly distorted coordination sphere by eight O atoms at distances ranging from 2.7908 (9 to 3.1924 (11 Å.

  15. KaZaA and similar Peer-to-Peer (P2P) file-sharing applications

    CERN Multimedia

    2003-01-01

    Personal use of Peer-to-Peer (P2P) file sharing applications is NOT permitted at CERN. A non-exhaustive list of such applications, popular for exchanging music, videos, software etc, is: KaZaA, Napster, Gnutella, Edonkey2000, Napigator, Limewire, Bearshare, WinMX, Aimster, Morpheus, BitTorrent, ... You are reminded that use of CERN's Computing Facilities is governed by CERN's Computing Rules (Operational Circular No 5). They require that all users of CERN's Computing Facilities respect copyright, license and confidentiality agreements for data of any form (software, music, videos, etc). Sanctions are applicable in case of non-respect of the Computing Rules. Further details on restrictions for P2P applications are at: http://cern.ch/security/file-sharing CERN's Computing Rules are at: http://cern.ch/ComputingRules Denise Heagerty, CERN Computer Security Officer, Computer.Security@cern.ch

  16. Investigating the density structure of the ZaP-HD Flow Z-Pinch with digital holographic interferometry

    Science.gov (United States)

    Ross, Michael; Shumlak, Uri; Nelson, Brian; Golingo, Raymond; Hughes, Michal; Forbes, Eleanor; Paliwoda, Matt

    2014-10-01

    The ZaP-HD Flow Z-Pinch experiment investigates how flow shear stabilized Z-pinches scale to higher densities and temperatures. Determining how such plasmas scale up may reveal their utility as test beds for HEDP physics. Scaling towards HEDP conditions requires compressing the plasma to a smaller size with increased plasma current. Measuring the internal structure of a smaller, hotter plasma requires high-resolution diagnostics. To measure electron density profiles, the ZaP-HD team uses holographic interferometry with 30 micron resolution. A new Nd:YAG laser is employed in concert with a consumer digital camera to record holograms, which are numerically reconstructed to obtain the phase shift caused by the interaction of the laser with the plasma. The numerical reconstruction provides a two-dimensional map of chord-integrated electron density, which can be inverted to radial profiles under the assumption of axisymmetry. Measurements of Z-pinch density structure are presented. This work is supported by grants from the U.S. Department of Energy and the U.S. National Nuclear Security Administration.

  17. RIJEKA ZETA KAO POTENCIJAL ZA RAZVOJ SPORTSKO-REKREATIVNIH OBLIKA TURIZMA

    Directory of Open Access Journals (Sweden)

    Ognjen Jovović

    2007-05-01

    Full Text Available Ba sic for re a li za tion of to u rist mo ve ments lays in me e ting cul tu ral and rec re a ti onal ne eds of po ten tial cu sto mers. If we know that lar gest num ber of to u rists re pre sents part of rec re a ti o nal ones, than is not hard to re a li ze how lar ge po ten tial lays in that number of po ten tial gu ests. On this fact sho uld be bu ilt stra tegy of mo ve ment of to u rist of fer of Da ni lov grad for it ex tre me po ten ti als on which can be fo un ded con cre te pro ject. In this work are gi ven ba sic as sump ti ons for de ve lop ment of sport rec re a ti o nal sha pes of to u rism with stress to na tu ral po ten ti als of ri ver Ze ta its banks and its clo se sur ro un ding that di rectly de ter mine sha pe of sport rec re a ti o nal ac ti vi ti es that re pre sent ba sis of to u rist of fer. Of fer sho uld be cre a ted in that way that it is adap ted to wi de seg ment of rec re a ti o nal gu ests and not pro fes si o nal spor tsmen, alt ho ugh they al so sho uld not be un de re sti ma ted but one sho uld know that in or der to cre a te con di ti ons for ar ri val of sports pro fes si o nals of fer has to be com ple tely dif fe rent and mo re spe ci a li zed that re qu i res cre a ting of con di ti ons of existen ce of highly de ve lo ped sports in fra struc tu re, whi le for ama te urs a lot can be do ne in “system of im pro vi sing”, sa tisfying ba sic cri te ria – rec re a tion in con di ti ons of un touc hed and well pre ser ved na tu re with se cu ring ma xi mal le vel of se cu rity and pro tec tion of gu ests, in or der to pre vent pos si ble un wil ling con se qu en ces that can lead to in jury of gu ests and for de ve lop ment and re a li za tion of such pro ject one need a much less funds than is bu il ding of fa ci li ti es that sho uld me et stan dards of pro fes si o nal spor tsmen. Po ten tial of ri ver Ze ta are hu ge and at trac ti ve for which re pre sent na tu ral re so urce on which can be fo un ded

  18. Microbial Indicator Profiling of Fresh Produce and Environmental Samples from Farms and Packing Facilities in Northern Mexico.

    Science.gov (United States)

    Heredia, Norma; Caballero, Cindy; Cárdenas, Carmen; Molina, Karina; García, Rafael; Solís, Luisa; Burrowes, Vanessa; Bartz, Faith E; de Aceituno, Anna Fabiszewski; Jaykus, Lee-Ann; García, Santos; Leon, Juan

    2016-07-01

    To compare microbiological indicator and pathogen contamination among different types of fresh produce and environmental samples along the production chain, 636 samples of produce (rinsates from cantaloupe melons, jalapeño peppers, and tomatoes) and environmental samples (rinsates from hands of workers, soil, and water) were collected at four successive steps in the production process (from the field before harvest through the packing facility) on 11 farms in northern Mexico during 2011 and 2012. Samples were assayed for enteric pathogens (Escherichia coli O157:H7, other Shiga toxigenic E. coli, Salmonella, and Listeria monocytogenes) and microbial indicators (coliforms, other E. coli strains, and Enterococcus spp.). Salmonella was the only pathogen detected; it was found in one preharvest jalapeño sample (detection limits: 0.0033 CFU/ml in produce and hand samples, 0.0013 CFU/ml in water, and 0.04 CFU/g in soil). Microbial indicator profiles for produce, worker hands, and soil from jalapeño and tomato farms were similar, but cantaloupe farm samples had higher indicator levels (P < 0.05 for all comparisons) on fruit (6.5, 2.8, and 7.2 log CFU per fruit) and hands (6.6, 3.1, and 7.1 log CFU per hand) for coliforms, E. coli, and Enterococcus, respectively, and lower E. coli levels in soil (<1 CFU/g). In water from tomato farms, E. coli indicators were significantly more prevalent (70 to 89% of samples were positive; P = 0.01 to 0.02), and geometric mean levels were higher (0.3 to 0.6 log CFU/100 ml) than those in cantaloupe farm water (32 to 38% of samples were positive, geometric mean <1 CFU/100 ml). Microbial indicators were present during all production steps, but prevalence and levels were generally highest at the final on-farm production step (the packing facility) (P < 0.03 for significant comparisons). The finding that microbial contamination on produce farms is influenced by produce type and production step can inform the design of effective approaches to

  19. Tikuvõileivaduell / Roman Zaštšerinski ; interv. Jaanus Kulli

    Index Scriptorium Estoniae

    Zaštšerinski, Roman, 1978-

    2008-01-01

    Intervjuu kokk Roman Zaštšerinskiga, kes valmistas koos Imre Kosega ette Vabariigi Presidendi iseseisvuspäeva vastuvõtu menüü. Vt. samas: Roman Zaštšerinski menüü vabariigi presidendi vastuvõtul

  20. Tikuvõileivaduell / Roman Zaštšerinski ; interv. Jaanus Kulli

    Index Scriptorium Estoniae

    Zaštšerinski, Roman, 1978-

    2008-01-01

    Intervjuu kokk Roman Zaštšerinskiga, kes valmistas koos Imre Kosega ette Vabariigi Presidendi iseseisvuspäeva vastuvõtu menüü. Vt. samas: Roman Zaštšerinski menüü vabariigi presidendi vastuvõtul

  1. MODEL E-PRIJAVE ZA SKLENITEV ZAKONSKE ZVEZE

    OpenAIRE

    Lekše, Vlasta

    2010-01-01

    V času vedno večjega razvoja elektronskega poslovanja in informatike na področju državne uprave, se prijava sklenitve zakonske zveze na Upravni enoti Ljubljana, še vedno vodi na zastarel način. V magistrski nalogi smo proučili možnost modernizacije ter poenostavitev tega procesa, predvsem skrajšanja časa od prijave do potrditve termina sklenitve zakonske zveze. Nadgradnja obstoječe aplikacije, ki bi omogočala spletno rezervacijo termina in lokacije za sklenitev zakonske zveze, bi bila zel...

  2. Uporaba geotermalne energije za proizvodnjo električno energije

    OpenAIRE

    Gorenc, Janez

    2016-01-01

    V energetski politiki se danes vse več posveča obnovljivim virom energije. Med obnovljive vire prištevamo tudi geotermalno energijo, katere možnosti uporabe za proizvodnjo električne energije v Sloveniji obravnava to diplomsko delo. Geotermalna energija je pravzaprav toplota, ki je akumulirana v notranjosti zemlje kot posledica različnih dejavnikov. Tektonski premiki ustvarjajo pogoje v strukturi zemlje, ki omogočajo izkoriščanje akumulirane toplote. Postopek obravnave in priprave perspekt...

  3. TRAVERTIN - ARHITEKTONSKI KAMEN ZA OBNOVU ZAGREBAČKE KATEDRALE

    OpenAIRE

    Crnković, Branko; Poggi, Francesco

    1995-01-01

    Za obnovu zagrebačke katedrale umjesto dosada ugrađenog litotamnijskog vapnenca ugrađuje se rimski travertin San Pietro classico iz ležišta u bazenu Acque Albule nedaleko Rima. Opisani su geneza i svojstva travertina. Izložene su razlike u genezi i svojstvima travertina i sedre. Travertin i sedra su tvorevine različitih genetskih procesa i ne mogu se međusobno poistovjećivati. Travertin je arhitektonski kamen od svjetskog značenja, a sedra od lokalnog, eventualno regionalnog.

  4. Analiza razvojnih okruženja za PLC

    OpenAIRE

    Rešetar, Dejan

    2016-01-01

    U radu je provedena analiza sljedećih razvojnih okruženja za PLC (eng. Programmable Logic Controller): em4 soft, Step-7/MicroWIN v4.0, Codesys v3.5 i SoMachine Basic v1.4 SP1. Napravljen je i kratak uvod u povijest PLC-a kako bi se objasnio razlog razvoja PLC tehnologije. Sva navedena programska okruženja su instalirana na isto računalo te su istražene prednosti i nedostatci. Osim rada s programskim okruženjima PLC sustava, obrađene su komponente PLC sustava, PLC komunikacija i programski jez...

  5. Idejna zasnova centra za mlade s posebnimi potrebami

    OpenAIRE

    2016-01-01

    Diplomska naloga obravnava temo, ki se nanaša na življenjski standard ljudi s posebnimi potrebami. Posredno prav tako revitalizira degradirano območje v Celju na lokaciji ob Mariborski cesti, kjer je nekdaj stala stavba Rakušovega mlina. Pripravljena je idejna zasnova centra za mlade s posebnimi potrebami, s poudarkom na kvalitetnejših pogojih in možnostjo raznolike dodatne izobrazbe, ki bi jim omogočila večjo samostojnost in samozavest v nadaljnjem življenju. V prvem delu je predstavlj...

  6. Friction and wear behavior of TiC particle reinforced ZA43 matrix composites

    Institute of Scientific and Technical Information of China (English)

    谢贤清; 张荻; 刘金水; 吴人洁

    2001-01-01

    TiC/ZA43 composites were fabricated by XDTM and stirring-casting techniques. The tribology properties of the unreinforced ZA43 alloy and the composites were studied by using a block-on-ring apparatus. Experimental results show that the incorporation of TiC particles improves the microstructure of ZA43 matrix alloy. The coefficient of friction μ and the width of worn groove decrease with the increase of TiC volume fraction φ(TiC). The width of worn groove and μ of the composite during wear testing increase with increasing the applied load. Metallographic examinations reveal that unreinforced ZA43 alloy has deep ploughing grooves with obvious adhesion phenomenon, whereas TiC/ZA43 composites have smooth worn surface. Delamination formation is related to the fatigue cracks and the shear cracks on the surface.

  7. BiPO{sub 4}/reduced graphene oxide composites photocatalyst with high photocatalytic activity

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, Yihe, E-mail: zyh@cugb.edu.cn [National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 10083 (China); Shen, Bo [National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 10083 (China); Huang, Hongwei, E-mail: hhw@cugb.edu.cn [National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 10083 (China); He, Ying [National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 10083 (China); Fei, Bin [Institute of Textile and Clothing, The Hong Kong Polytechnic University, Kowloon, Hong Kong (China); Lv, Fengzhu [National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 10083 (China)

    2014-11-15

    Graphical abstract: The composite photocatalysts composed of BiPO{sub 4} and reduced graphene oxide (rGO) were synthesized by a facile hydrothermal method. The BiPO{sub 4}/rGO composites exhibit much better photocatalytic performance than pure BiPO{sub 4}. - Highlights: • BiPO{sub 4} nanoparticles are immobilized on reduced graphene oxide (rGO) as photocatalysts. • The BiPO{sub 4}/rGO composites show enhanced photocatalytic activity than the pure BiPO{sub 4} nanoparticles. • The crystallization phases of BiPO{sub 4} can be determined by the amount of graphene. - Abstract: The composite photocatalysts composed of BiPO{sub 4} and reduced graphene oxide (rGO) were synthesized by a facile hydrothermal method. Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), transmission electron spectroscopy (TEM), photoluminescence emission spectra (PL) and UV–vis diffuse reflection spectroscopy (DRS) were used to characterize the titled composites. The results showed that the BiPO{sub 4} particles can be immobilized on the surface of rGO sheets, and the crystallization phases of BiPO{sub 4} were significantly influenced by the amount of graphene. The phase transformation of BiPO{sub 4} crystal from hexagonal to monoclinic phase was observed. The introduction of rGO improved the optical properties of BiPO{sub 4} and thereby enhancing the utilization of light. Compared with pure BiPO{sub 4} under similar synthesis condition, the BiPO{sub 4}/rGO composites exhibit a much higher photodegradation activity, which was confirmed by photoluminescence (PL) spectra and photocurrent (PC) generation.

  8. Synthesis and Electrochemical Properties of LiFePO4/C for Lithium Ion Batteries.

    Science.gov (United States)

    Gao, Hong; Wang, Jiazhao; Yin, Shengyu; Zheng, Hao; Wang, Shengfu; Feng, Chuanqi; Wang, Shiquan

    2015-03-01

    LiFePO4/C was prepared through a facile rheological phase reaction method by using Fe3(PO4)2, Li3PO4 · 8H2O, and glucose as reactants. The LiFePO4/C samples were characterized by X-ray diffraction, scanning electron microscopy, and thermogravimetric analysis. The electrochemical properties of the samples were investigated. The results show that the LiFePO4/C samples have single-phase olivine-type structure, and their particles feature a spherical shape. The carbon coating on the particles of LiFePO4 is about 1.8% of the LiFePO4/C by weight. The particle size was distributed from 0.2 to 1 µm. The initial discharge capacity of LiFePO4/C reached 154 mA h/g at 0.1 C. The retained discharge capacity of LiFePO4/C was 152.9 mA h g(-1) after 50 cycles. The LiFePO4/C also showed better cycling performance than that of the bare LiPeO4 at a higher charge/discharge rate (1 C). The LIFePO4/C prepared in this way could be a promising cathode material for lithium ion battery application.

  9. Vpliv spremembe dimenzij mostička na razporeditev napetosti v gravuri utopnega orodja za kovanje

    OpenAIRE

    Salobir, Andrej

    2016-01-01

    Magistrsko delo prikazuje uporabo računalniških simulacij na področju kovanja v vročem. Na primeru kovanja ojnice, je s pomočjo računalniških simulacij in CAD programske opreme prikazana optimizacija geometrije kovaškega orodja. Izvedene so povezane simulacije procesa kovanja za izhodiščno in optimizirano geometrijo. Za 3D modeliranje je uporabljen programski paket Siemens NX 9.0, za izvedbo simulacij pa programski paket DEFORM 3D. Optimizacija geometrije utopnega orodja vključuje spremem...

  10. Balet v luči dijakov Konservatorija za glasbo in balet v Mariboru

    OpenAIRE

    Kmetec, Breda

    2016-01-01

    Diplomsko delo z naslovom Balet v luči dijakov Konservatorija za glasbo in balet v Mariboru smo v začetku predstavili s krajšim teoretičnim pregledom zgodovine plesa skozi obdobja. Več pozornosti smo v nadaljevanju namenili baletni umetnosti. Predstavili smo balet od izvora do 20. stoletja, oblačila v baletu, ki so se skozi obdobja spreminjala, baletni prostor, ki je ključnega pomena za učenje in poučevanje baleta. Nato smo teoretični del diplomskega dela smiselno povezali z empiričnim, zato ...

  11. Osiguravanje međuoperabilnosti za Internet stvari: iskustvo s testiranjem CoAP protokola

    OpenAIRE

    Chen, Nanxing; Viho, César; Baire, Anthony; Huang, Xiaohong; Zha, Jiexi

    2014-01-01

    Constrained Application Protocol (CoAP) je specijalizirani prijenosni protokol, dizajniran za realizaciju međuoperabilnosti uz ograničene mrežame i čvorove za primjene poput pametne energije, automatizacije u zgradarstvu itd. Kao važan i sveprisutan protokol za Internet stvari CoAP bi mogao biti implementiran kod velikog broja pametnih uređaja kako bi se ostvarile kooperativne usluge. Zbog toga je od velike važnosti postic´i visoku razinu međuoperabilnosti CoAP implementacija. U tom kontekstu...

  12. Prve odluke Međunarodnog suda za pravo mora : (komentar)

    OpenAIRE

    Vokić Žužul, Marina

    1999-01-01

    Prvi postupak pred Međunarodnim sudom za pravo mora u Hamburgu pokrenut je 13. studenoga 1997. godine u slučaju uzapćenja broda ''Saiga''. Država zastave broda Sveti Vincent i Grenadini podnijela je Sudu zahtjev za hitno oslobađanje broda i njegove posade, pozivajući se na članak 292. Konvencije UN o pravu mora iz 1982. godine. Svi suci, njih dvadeset i jedan, donijeli su 4. prosinca 1997. jednoglasnu odluku da je Sud nadležan za rješavanje toga predmeta. Glasujući 12 : 9 Sud je zaključio da ...

  13. Razlozi neizvršenja odluka upravnog suca i sredstva pravne zaštite u slučaju neizvršenja

    Directory of Open Access Journals (Sweden)

    Marc Gjidara

    2015-04-01

    Full Text Available Nakon postupnog razvoja koji je ipak bio obilježen važnim napredovnju u sudskoj praksi, zakonodavac je od 1980. i 1995. osigurao francuskom upravnom sudovanju najšire ovlasti kako bi nametnuo javnoj upravi obvezu poštivanja presuda koje su protiv nje donesene. Puna i učinkovita provedba sudskih odluka, posebno onih koje su na štetu (protiv javnopravnih tijela, je važan kriterij vladavine prava. Širina procesnih metoda, usmjerenih na izbjegavanje neizvršavanja upravnosudskih odluka, uključuje poticajne mehanizme (pedagogiju i uvjeravanje, i nakon toga prvotno prinudne mjere, a ponekad i represivne mjere koje uključuju ne samo financijsku odgovornost javnopravnih tijela, nego i osobnu odgovornost službenika koji su odgovorni za neizvršavanje.

  14. Tepelná analýza Gunnovy diody

    OpenAIRE

    Chára, Pavel

    2010-01-01

    Cílem bakalářské práce byla tepelná analýza Gunnovy diody. Model Gunnovy diody zahrnující tepelné jevy byl analyzován programem COMSOL Multiphysics. Dalším úkolem bylo navrhnout pro diodu vhodný chladič a jeho správnou funkci ověřit simulacemi. The aim of bachelor’s project has been thermal analysis of Gunn diode. Gunn diode model involving thermal effects was analyzed in COMSOL Multiphysics. Another task was to design a suitable heat sink for diode and its proper function to verify simula...

  15. An exploration of the socio-economic profile of women and costs of receiving abortion services at public health facilities of Madhya Pradesh, India.

    Science.gov (United States)

    Banerjee, Sushanta K; Kumar, Rakesh; Warvadekar, Janardan; Manning, Vinoj; Andersen, Kathryn Louise

    2017-03-21

    Maternal mortality, which primarily burdens developing countries, reflects the greatest health divide between rich and poor. This is especially pronounced for access to safe abortion services which alone avert 1 of every 10 maternal deaths in India. Primarily due to confidentiality concerns, poor women in India prefer private services which are often offered by untrained providers and may be expensive. In 2006 the state government of Madhya Pradesh (population 73 million) began a concerted effort to ensure access to safe abortion services at public health facilities to both rural and urban poor women. This study aims to understand the socio-economic profile of women seeking abortion services in public health facilities across this state and out of pocket cost accessing abortion services. In particular, we examine the level of access that poor women have to safe abortion services in Madhya Pradesh. This study consisted of a cross-sectional client follow-up design. A total of 19 facilities were selected using two-stage random sampling and 1036 women presenting to chosen facilities with abortion and post-abortion complications were interviewed between May and December 2014. A structured data collection tool was developed. A composite wealth index computed using principal component analysis derived weights from consumer durables and asset holding and classified women into three categories, poor, moderate, and rich. Findings highlight that overall 57% of women who received abortion care at public health facilities were poor, followed by 21% moderate and 22% rich. More poor women sought care at primary level facilities (58%) than secondary level facilities and among women presenting for postabortion complications (67%) than induced abortion. Women reported spending no money to access abortion services as abortion services are free of cost at public facilities. However, poor women spend INR 64 (1 USD) while visiting primary level facilities and INR 256 (USD 4) while

  16. Advances in Pediatric Reference Intervals for Biochemical Markers: Establishment of the Caliper Database in Healthy Children and Adolescents/Napredak U Oblasti Pedijatrijskih Referentnih Intervala Za Biohemijske Markere: Izrada Baze Podataka Caliper Kod Zdrave Dece I Adolescenata

    Directory of Open Access Journals (Sweden)

    Karbasy Kimiya

    2014-01-01

    Full Text Available Klinički laboratorijski referentni intervali pru`aju lekarima podatke koji su va`ni za tumačenje rezultata kvantitativnih laboratorijskih testova i stoga su od ključne vrednosti za procenu zdravstvenog stanja pacijenta i dono{enje kliničkih odluka. Referentni interval slu`i kao reper u smislu zdravlja s kojim će se porediti rezultat pojedinačnog testa. Na`alost, trenutno postoje velike razlike u tačnim i savremenim pedijatrijskim referentnim intervalima za tačno tumačenje laboratorijskih testova koji se obavljaju kod dece i adolescenata. Ove velike razlike u dostupnim laboratorijskim referentnim intervalima očito lako mogu dovesti do dijagnostičke gre{ke ili po gre{nog dijagnostikovanja mnogih bolesti. Nekoliko inicijativa pokrenuto je od strane vi{e tela na me|unarodnom nivou sa ciljem da se re{i problem ovih razlika, me|u njima inicijativa KiGGS u Nemačkoj, Aussie Normals u Australiji, AACC - Nacionalna dečija studija u SAD, Inicijativa NORICHILD u Skandinaviji i studija CALIPER u Kanadi. U ovom članku daćemo pregled razlika u pedijatrijskim referentnim interva lima, izazova vezanih za utvr|ivanje pedijatrijskih normi kod zdrave dece i adolescenata i glavnih doprinosa programa CALIPER u pogledu otklanjanja razlika u ovoj najva`nijoj oblasti pedijatrijske laboratorijske medicine. Tako|e će biti reči o nedavno objavljenoj bazi podataka o referentnim intervalima CALIPER (www.caliperdatabase.com koja treba da pru`i sveobuhvatne pedijatrijske referentne intervale specifične za uzrast i pol za veći broj biohemijskih markera, zasnovane na velikom i raznolikom skupu zdrave dece. Baza podataka CALIPER zasniva se na multietničkoj populaciji, zahvaljujući čemu se istra`uje i uticaj etničke pripadnosti na laboratorijske referentne intervale. Ova baza podataka pokazala se globalno korisnom, zbog čega je usvajaju bolničke laboratorije {irom sveta.

  17. Študij sevalnih poškodb silicijevih detektorjev za eksperimente z visoko luminoznostjo na trkalniku LHC

    CERN Document Server

    Žontar, Dejan; Mikuž, Marko

    1998-01-01

    Radiation damage of the silicon bulk will play an important role in the vertex detectors in the future experiments at LHC. To study its macroscopic effects, high resistivity p-n-n diodes were irradiated with neutrons at the TRIGA research reactor of Jožef Stefan Institute in Ljubljana. Irradiation fluences were in the range from 10^13 to 2.5x10^14 cm2 of equivalent 1 MeV neutrons. Development of effective doping concentration and reverse current during and after irradiations was studied under controlled conditions (bias, temperature). Long term annealing of effective doping concentration was studied to determine the dynamics of the process responsible. Results obtained from a set of unbiased diodes kept at 20"C gave conclusive evidence that, at least during the initial stage, time development can be described by a first order process. Flux dependence of defect creation has been checked in the flux range from 2x10^8 to approx 5x10^15 n/cm2s. No significant difference among the samples was observed in a...

  18. Gonorrhoea: auxotypes, serovars, and clinical manifestations among female sex workers from Kinshasa, Zaïre.

    Science.gov (United States)

    Mukenge-Tshibaka, L; Alary, M; Van Dyck, E; Laga, M; Nzila, N

    1997-01-01

    The main question in this paper was to look at the distribution of auxotypes and serovars of Neisseria gonorrhoeae and check whether they correlate with clinical symptoms/signs among female sex workers (FSW) from Kinshasa, Zaïre. The subject were 1233 FSW enrolled in a cross sectional study on STDs and HIV infection in 1988; 771 of them were followed prospectively for a median duration of 23 months. At each visit, clinical symptoms and signs of cervicitis were recorded and the subjects were screened for gonococcal and chlamydial infection. The pre-dominant auxotypes were prototrophic (35.2%), proline requiring (29.6%), and proline requiring phenylalanine inhibition (19%). Serovars 1A-6 (42.5%) and 1B-1 (16.7%) were the commonest. Infection with auxotype prototrophic and phenylalanine inhibition (Proto/Phenali) was significantly associated with both mucopurulent cervicitis and pelvic inflammatory disease; (OR = 8.9; p = 0.002 and OR =19 x9; p = 0.002; respectively). Despite the few associations found in this study, there was not clear pattern linking clinical manifestations to auxotype/serovar profiles. PMID:9582486

  19. Data of evolutionary structure change: 2ARDA-2O9ZA [Confc[Archive

    Lifescience Database Archive (English)

    Full Text Available 2ARDA-2O9ZA 2ARD 2O9Z A A NKPIKNIVIVGGGTAGWMAASYLVRALQQQANITLIESA...EGTSEARELDGGPDHFYHSFGLLKYHEQIPLSHYWFDRSYRGKTVEPFDYACYKEPVILDANRSPRRLDGSKVTNYAWHFDAHLVADFLRRFATEKLGVRHVEDRVEHVQRDA...2ARD A 2ARDA 2ARD A 2ARDA KRWAV-ERGVN 2 2ARD A 2ARDA

  20. Microstructure and Tensile Behaviour of B4C Reinforced ZA43 Alloy Composites

    Science.gov (United States)

    Adaveesh, B.; Halesh, G. M.; Nagaral, Madeva; Mohan Kumar, T. S.

    2016-09-01

    The work is carried out to investigate and study the mechanical properties of B4C reinforced ZA43 alloy metal matrix composites. In the present work ZA43 alloy is taken as the base matrix and B4C particulates as reinforcement material to prepare metal matrix composites by stir casting method. For metal matrix composites the reinforcement material was varied from 0 to 6 wt.% in steps of 3 wt.%. For each composite, the reinforcement particulates were preheated to a temperature of 300°C and dispersed into a vortex of molten ZA43 alloy. The microstructural characterization was done using scanning electron microscope. Mechanical properties like hardness, ultimate tensile strength and yield strength were evaluated as per ASTM standards. Further, scanning electron microphotographs revealed that there was uniform distribution of B4C particulates in ZA43 alloy matrix. Hardness, ultimate tensile strength and yield strength increased as wt.% of B4C increased in the base matrix.

  1. RAZVOJ VIRTUALNEGA MODELA ČLOVEŠKE ROKE ZA ERGONOMSKO OBLIKOVANJE IZDELKOV

    OpenAIRE

    Harih, Gregor

    2014-01-01

    Velik del ročnih opravil je še vedno opravljen s pomočjo ročnih orodij. Pravilna zasnova ročaja orodja je tako lahko ključnega pomena za preprečevanje obolenj. Obstoječe metode načrtovanja upoštevajo valjaste ročaje in podajajo smernice za določitev optimalnih premerov za povečanje zmogljivosti in zviševanje udobja ob zmanjševanju možnosti za nastanek akutnih in kumulativnih travmatičnih obolenj. Oblika ročaja in materiali ročaja doslej niso bili podrobneje raziskani, kar bi imelo vpliv na iz...

  2. Data of evolutionary structure change: 1DTGA-1B7ZA [Confc[Archive

    Lifescience Database Archive (English)

    Full Text Available 1DTGA-1B7ZA 1DTG 1B7Z A A ---KTVRWCAVSEHEATKCQSFRDHMKSVIPSDGPSVAC...VAVVRKSDADLTWNSLSGKKSCHTGVGRTAAWNIPMGLLFNQTGSCKFDKFFSQSCAPGADPQSSLCALCVGNNENENKCMPNSEERYYGYTGAFRCLAEKAGDVAFV...> 0 1DTG A 1DTGAA 1DTGA LFSSP-HGKDL 1DTGA HMKSVIPSDGPSV

  3. Wear-Resistance Performance of ZA-27 Alloys Reinforced by Rare Earth Compounds

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    The morphology of ZA-27 alloy reinforced by RE compounds and its wear-resistance were studied. It is found that some nodular second phases appear due to the addition of Si and RE, which can disperse in grain boundaries or between dendrite crystals so that the alloy has been refined. Energy spectrum analysis of scanning electron microscope shows that the second phases are complex compounds containing RE, Al, Zn and Si. The micro-hardness test indicates that micro-hardness values of the compounds are higher than those of the matrix. The wear-resistance of ZA-27 alloy reinforced by RE compounds is 4 times as high as that of ZA-27 alloy and also higher than that of ZA-27 alloy containing Si phase. The impact toughness of the alloy containing RE and Si is higher than that of the alloy containing Si.

  4. Loodusfotograaf Sven Začek saab lindudega sõbraks / interv. Kristjan Roos

    Index Scriptorium Estoniae

    Začek, Sven, 1980-

    2012-01-01

    Tartu lähedal Kõrvekülas elavast 31-aastasest loodusfotograafist Sven Začekist sai Remo Savisaare ja Priit Vesilinnu kõrval kolmas eestlane, kelle fotosid on avaldanud mainekas loodusajakiri National Geographic

  5. Sliding wear and friction behavior of ZA-27 alloy reinforced by Mn-containing intermetallic compounds

    Institute of Scientific and Technical Information of China (English)

    龙雁; 李元元; 张大童; 邱诚; 陈维平

    2002-01-01

    A ZA-27 alloy reinforced with M n-containing intermeta llic compounds was prepared and its tribological behaviors were investigated. By adding Mn, RE, Ti and B into ZA-27 alloy, the test alloy (ZMJ) was fabricated by sand casting. Microstructural analysis shows that considerable amount of Mn-containing intermetallic compounds such as Al5MnZn, Al9(MnZn)2 and Al65 Mn(RE)6Ti4Zn36 are formed. Compared to ZA-27, ZMJ shows better wear resistance, lower friction coefficient and lower temperature rise of worn surface under lubricated sliding condition. ZMJ also shows the lowest steady friction coefficient under dry friction condition. The wear resistance improvement of ZMJ is mainly attributed to the high hardness and good dispersion of these Mn-containing intermetallic compounds. It is indicated that the intermetallic compounds play a dominant role in reducing the sever adhesive and abrasive wear of the ZA-27 alloy.

  6. Loodusfotograaf Sven Začek saab lindudega sõbraks / interv. Kristjan Roos

    Index Scriptorium Estoniae

    Začek, Sven, 1980-

    2012-01-01

    Tartu lähedal Kõrvekülas elavast 31-aastasest loodusfotograafist Sven Začekist sai Remo Savisaare ja Priit Vesilinnu kõrval kolmas eestlane, kelle fotosid on avaldanud mainekas loodusajakiri National Geographic

  7. Antibakterijski učinak materijala za punjenje korijenskih kanala, podloge i ispune kaviteta

    Directory of Open Access Journals (Sweden)

    Suzana Ferk

    2011-02-01

    Full Text Available Cilj Ispitati antibakterijski učinak materijala za endodontsku opskrbu zuba. Metode Testom difuzije u agaru ispitivana su punila korijenskih kanala Ketac Endo, AH Plus, Diaket i gutaperka. Od materijala za podloge ispitivani su Cink Oksid/Eugenol cement, staklenoionomerni cementi Fuji II LC Improved i Ketac Cem, te Phosphatcement i Harvard cement. Kao materijali za deinitivne ispune ispitivani su amalgam, Ketac Molar i Fuji II LC Improved. Pri tomesu rabljene bakterije Streptococcus mutans, Streptotoccus mitis,Lactobacillus species, Staphylococcus aureus, Enterococcus faecalis,te polimikrobna suspenzija. Za svaku ispitivanu bakteriju na inokulirane ploče krvnog agara raspoređeni su uzorci materijala. Rezultati Antibakterijski učinak imali su slijedeći materijali: punila kanala - Diaket, AH Plus, Ketac Endo, a za podloge: Cink Oksid/ Eugenol cement, Phosphat i Harvard cement. Antibakterijskiučinak nisu pokazali amalgam, gutaperka, Fuji II LC Improved, Ketac Cem i Ketac Molar. Diaket je pokazao statistički značajno jači antibakterijski učinak naspram AH Plusa, Ketac Endoa i gutaperke(ps.mitis<0,05; ps.mutans<0,05; plactobacillus<0,05; penterococcus<0,05; pstaphilococcus<0,05; ppolimikrobni<0,05. Od materijala za podloge snažniji antibakterijski učinak pokazali su Phosphat cement, Harvard cement i Cink Oksid/Eugenol (ZnOE (p<0.05 prema Fuji II LC Improved i Ketac Cemu. Zaključak Prema rezultatima ovog istraživanja, s obzirom da materijali za ispune nisu pokazali antibakterijski učinak, prednost pri odabiru materijala za punjenje kanala i podloge treba dati materijalima s iskazanim najjačim antibakterijskim učinkom, kao što su Diaket i Phosphat cement.

  8. PREGLED REŠITEV ZA UVEDBO E-POSLOVANJA V MALIH PODJETJIH

    OpenAIRE

    Radaković, Milan

    2012-01-01

    V sodobnem času se zavedamo pomembnosti informacijskih tehnologij in njihovega vpliva na kakovost dela v podjetjih, učinkovitost, organiziranost in inovativnost. Ponudba sodobnih informacijskih tehnologij in programov je na današnji dan zelo široka. Za pravilno izbiro potrebne tehnologije sta potrebna predhodni pregled in analiza obstoječe ponudbe. V diplomskem delu smo želeli narediti delni pregled aktualnih ponudb za mikro in mala podjetja s poudarkom na prednostih in slabostih posameznih r...

  9. VARNOSTNA TVEGANJA PRI RAZVOJU INFORMACIJSKIH REŠITEV S POMOČJO SISTEMOV ZA UPRAVLJANJE VSEBIN

    OpenAIRE

    Leskovar, Uroš

    2015-01-01

    V diplomskem delu je obravnavana problematika varnostnih tveganj pri razvoju in uporabi informacijskih rešitev kadar uporabljamo sisteme za upravljanje vsebin. Varnost v informacijskih sistemih je pogosto ogrožena, kljub vedno novejšim tehnologijam. Diplomsko delo zajema splošen opis treh najpogostejših sistemov za upravljanje vsebin, primerjavo preteklih testiranj sistemov, varnostno testiranje s pomočjo navodil drugih organizacij in pregled najpogostejših nevarnosti. Ugotovljeno je bilo, da...

  10. Savremeno naoružanje i vojna oprema za broj 3/2013

    Directory of Open Access Journals (Sweden)

    Mladen R. Tišma

    2013-10-01

    Full Text Available Lasta ponovo leti;Objavljeni novi taktičko-tehnički podaci za MiG-29M/M2;Saab razvija palubni Sea Gripen i opciono bespilotni Gripen OP;Čengdu prikazao model dvosede verzije aviona FC-1;Prikazan transportni avion C296W;Američka Kopnena vojska izabrala Bell V-280 Valor za svoj JMR-TD program 

  11. Prilagoditev agilne metode za integracijo EDMS v obstoječi informacijski sistem

    OpenAIRE

    Zupančič, Marko

    2014-01-01

    Raziskava obravnava prilagoditev agilne metode za integracijo EDMS v obstoječi informacijski sistem. Problemsko stanje, ki ga v konkretnem poslovnem sistemu zaznavajo, je pomanjkanje definirane metodologije za integracijo EDMS, povprečna prekoračitev planiranih projektnih rokov od 20 % do 50 %, oteženo sledenje sprememb projekta, pomanjkanje testiranja in nedefinirano določanje prioritet zahtevam. Podan je pregled strokovne literature o agilnih metodah, EDMS, BPMN. Ugotovljeno je, da dok...

  12. Tehnika za proizvodnju hrane u terenskim uslovima / Technology for food preparation in field conditions

    Directory of Open Access Journals (Sweden)

    Branko M. Tešanović

    2010-10-01

    Full Text Available U terenskim uslovima osnovna sredstva za pripremanje hrane su pokretne kuhinje. One se koriste u miru za vreme izvođenja vežbi, logorovanja, za obuku vojnika kuvara i u vojnim školama za obuku studenata i učenika intendantske službe. Izuzetno, mogu se koristiti za kuvanje jela kada se vojni restorani adaptiraju ili se zbog drugih razloga hrana ne može pripremati u njima. U Vojsci Srbije danas su u upotrebi sledeće vrste pokretnih kuhinja: kuhinja autoprikolica od 250, 200, 300 i 400 l i kuhinja tovarna od 25 l. Za pripremu hrane u terenskim uslovima OS NATO koriste veoma raznovrstan park poljskih tehničkih sredstava. / In field conditions, the basic means for food preparation are mobile kitchens. Mobile kitchens are used in peace time during exercise and camping as well as for training military chefs and students of logistic support in military schools. Exceptionally, they can be used for cooking meals when repairing or adapting military restaurants or for some other valid reasons. In the Army of Serbia today, there are the following types of mobile kitchens: mobile kitchen 250, 200, 300 and 400 l and a kitchen pack of 25 l. For the preparation of food in field conditions, NATO forces use a very versatile choice of field technical resources.

  13. Konkretizacija pojma trajnostnega prostorskega razvoja za oceno osveščenosti otrok in mladostnikov

    Directory of Open Access Journals (Sweden)

    Andreja Istenič Starčič

    2009-01-01

    Full Text Available Prispevek je usmerjen k celovitemu sooblikovanju pogojev za tvorno izobraževanje o učinkovitih, konkretnih prispevkih k trajnostni razvojni usmeritvi, s poudarkom na grajenem okolju oziroma arhitekturi. Opredeljuje vlogo izobraževanja o grajenem okolju oziroma arhitekturi v konceptu trajnostnega razvoja; določa izhodišča za prilagajanje načinov posredovanja arhitekturnih vsebin ter opredeljuje izobraževalne vsebine in njihove predstavitve glede na razvojne sposobnosti ciljne publike. Predstavlja torej razmislek o opredmetenju pojma trajnostni prostorski razvoj za oceno osveščenosti otrok in mladostnikov o »trajnostnih arhitekturnih« temah ter tudi za ugotavljanje usposobljenost vzgojiteljev in učiteljev za posredovanje znanja s področja grajenega okolja v povezavi s trajnostnim razvojem. Konkretizacija pomeni izbor in vizualizacijo aktualnih konkretnih pojavov v prostoru za izbrano ciljno publiko – v prispevku so prikazani vzorčni primeri. Prispeva k razvoju »kulturne« dimenzije trajnosti prostorskega razvoja. Prizadevanja vodijo k razvoju sistema vseživljenjskega učenja o arhitekturi ter njenem vplivu na naš vsakdan in naš jutri.

  14. Industrial sector-based volatile organic compound (VOC) source profiles measured in manufacturing facilities in the Pearl River Delta, China.

    Science.gov (United States)

    Zheng, Junyu; Yu, Yufan; Mo, Ziwei; Zhang, Zhou; Wang, Xinming; Yin, Shasha; Peng, Kang; Yang, Yang; Feng, Xiaoqiong; Cai, Huihua

    2013-07-01

    Industrial sector-based VOC source profiles are reported for the Pearl River Delta (PRD) region, China, based source samples (stack emissions and fugitive emissions) analyzed from sources operating under normal conditions. The industrial sectors considered are printing (letterpress, offset and gravure printing processes), wood furniture coating, shoemaking, paint manufacturing and metal surface coating. More than 250 VOC species were detected following US EPA methods TO-14 and TO-15. The results indicated that benzene and toluene were the major species associated with letterpress printing, while ethyl acetate and isopropyl alcohol were the most abundant compounds of other two printing processes. Acetone and 2-butanone were the major species observed in the shoemaking sector. The source profile patterns were found to be similar for the paint manufacturing, wood furniture coating, and metal surface coating sectors, with aromatics being the most abundant group and oxygenated VOCs (OVOCs) as the second largest contributor in the profiles. While OVOCs were one of the most significant VOC groups detected in these five industrial sectors in the PRD region, they have not been reported in most other source profile studies. Such comparisons with other studies show that there are differences in source profiles for different regions or countries, indicating the importance of developing local source profiles. Crown Copyright © 2013. Published by Elsevier B.V. All rights reserved.

  15. Role of PO4 tetrahedron in LiFePO4 and FePO4 system.

    Science.gov (United States)

    Zeng, Yuewu

    2015-06-01

    Using high resolution transmission electron microscopy with image simulation and Fourier analysis, the Li1- x FePO4 (x LiFePO4 and FePO4 resulting from spinodal decomposition which promote Li ion easily getting into the particle due to uphill diffusion, (3) the particles of FePO4 formed in charging have heavily distorted lattice and contain some isolated LiFePO4 , (4) interface between LiFePO4 and FePO4 and between amorphous and crystal region provides the lattice distortion of small polarons.

  16. Morbidity profile of elderly outpatients attending selected sub-district Siddha health facilities in Tamil Nadu, India

    Directory of Open Access Journals (Sweden)

    Kalaiselvi Selvaraj

    2016-01-01

    Conclusion: Elderly constitute more than one fourth of outpatients load from siddha health facilities. Degenerative diseases like arthritis and non-communicable diseases were the common morbidities in this age group. Geriatric clinics and mobile clinics under siddha system may help in improving health care services.

  17. BiPO4@Ag3 PO4核/壳异质结的制备及光催化性能%Fabrication and Photocatalytic Activity of BiPO4@Ag3 PO4 Core/Shell Heterojunction

    Institute of Scientific and Technical Information of China (English)

    任延琳; 李新勇; 肇启东

    2014-01-01

    采用简单的水热法结合离子交换法制备了BiPO4@Ag3 PO4核/壳异质结光催化剂,采用场发射扫描电子显微镜(FE-SEM)、透射电子显微镜(TEM)、紫外-可见漫反射光谱仪(DRS)和 X 射线光电子能谱仪(XPS)等对催化剂的形貌、组成、晶型和光物理性质等进行了研究,用罗丹明B(RhB)为模拟水体中有机污染物分别在可见光和模拟太阳光照条件下对催化剂的催化活性进行了测试。结果表明,负载 Ag3 PO4的BiPO4微米棒具有较高的可见光响应,其核/壳异质结结构有利于光生电子-空穴对的有效分离和提高对RhB的光催化降解效率,在可见光和模拟太阳光照射条件下分别在60和40 min可使RhB完全脱色降解。活性物种检测实验结果证明,该催化剂在污染物降解过程中主要的机理是光生空穴的直接氧化。%BiPO4@Ag3 PO4 core/shell heterojuction photocatalyst was synthesized through a facile hydrother-mal process followed by the ion-exchange method. The morphology, crystallinity, composition, and photophy-sical properties of the catalyst were systematically investigated by scanning electron microscope( SEM) , X-ray diffraction(XRD), energy dispersive X-ray analysis, UV-Vis diffuse reflectance spectrophotometer(DRS) and X-ray photoelectron spectroscopy( XPS) . Meanwhile, Rhodamine B( RhB) was chosen as the target pollutant to evaluate the photocatalytic activity of BiPO4@Ag3 PO4 photocatalyst under the visible light and simulated sunlight irradiation, respectively. The results show that RhB was almost totally degraded in 60 min under visi-ble-light irradiation and in 40 min under sunlight irradiation, respectively. The BiPO4@Ag3 PO4 core/shell heterojunction photocatalyst displayed enhanced photocatalytic activity against RhB, which is attributed to the effective charge separation by the core/shell heterojuction between the Ag3 PO4 and BiPO4 . Active species de-tection experiments proved that during

  18. Synthesis of the LiFePO4/C core-shell nanocomposite using a nano-FePO4/polythiophene as an iron source

    Science.gov (United States)

    Liu, Jing; Yang, Guiling; Zhang, Xianfa; Wang, Jiawei; Wang, Rongshun

    2012-01-01

    For the first time, a LiFePO4/C core-shell nanocomposite has been synthesized using a nano-FePO4/polythiophene (PTh) as an iron source. With this method, the PTh is in situ polymerized to restrain the growth of FePO4 particles, and the typical size of FePO4/PTh particles is in the range of 20-50 nm. The optimized LiFePO4/C nanocomposite is synthesized at 750 °C using 40% citric acid. The prepared LiFePO4 particles show a typical size of 50-100 nm and they are fully coated by carbon of 2-4 nm thickness. The LiFePO4/C core-shell nanocomposite gives an improved high electronic conductivity and a good electrochemical behavior at high rates. Thus, this novel method is an effective and facile strategy to improve the rate performance of the LiFePO4 cathode.

  19. RbYb(PO34

    Directory of Open Access Journals (Sweden)

    Hui Chen

    2013-01-01

    Full Text Available Rubidium ytterbium(III tetrakis(polyphosphate, RbYb(PO34, was synthesized by solid-state reaction. It adopts structure type IV of the MRE(PO34 (M = alkali metal and RE = rare earth metal family of compounds. The structure is composed of a three-dimensional framework made up from double spiral polyphosphate chains parallel to [10-1] and irregular [YbO8] polyhedra. There are eight PO4 tetrahedra in the repeat unit of the polyphosphate chains. The Rb+ cation is located in channels extending along [100] that are delimited by the three-dimensional framework. It is surrounded by 11 O atoms, defining an irregular polyhedron.

  20. POMEN TRGA BOSNE IN HERCEGOVINE ZA GOSPODARSTVO SLOVENIJE

    OpenAIRE

    Mehić, Mirnes

    2016-01-01

    V magistrski nalogi smo obravnavali značilnosti mednarodne trgovine ter njen vpliv na gospodarstvo. Brez mednarodnega gospodarskega sodelovanja držav si ne moremo predstavljati uspešnega razvoja in popolnega zadovoljevanja potreb po dobrinah. Danes si bolj kot kadarkoli prej nobeno nacionalno gospodarstvo ne more privoščiti izolacije od ostalega sveta. Izraza, kot sta svetovno gospodarstvo in globalna vas, nakazujeta, da smo vsi na tem planetu odvisni drug od drugega. V prvem delu magistr...

  1. LiDy(PO34

    Directory of Open Access Journals (Sweden)

    Fathia Chehimi-Moumen

    2008-07-01

    Full Text Available Single crystals of lithium dysprosium polyphosphate, LiDy(PO34, were prepared by the flux method. The atomic arrangement is built up by infinite (PO3n chains extending along the b axis. Dy3+ and Li+ cations alternate in the middle of four such chains, with Dy...Li distances of 3.54 (1 and 3.48 (1 Å. The DyO8 dodecahedra and LiO4 tetrahedra deviate significantly from the ideal geometry. Both Dy and Li occupy special positions (Wyckoff position 4e, site symmetry 2.

  2. Adaptation of the South-West Wing of Collegium Chemicum of Adam Mickiewicz University in Poznań for Storage Facilities/ Adaptacja Południowo-Zachodniego Skrzydła Budynku Collegium Chemicum Uam W Poznaniu Na Cele Magazynowe

    Science.gov (United States)

    Ścigałło, Jacek

    2015-06-01

    The article refers to the problems of adaptation of Collegium Chemicum facilities belonging to Adam Mickiewicz Uniwersity in Poznań to its storage needs. The subject building is situated in Grunwaldzka Street in Poznań. In the introduction part, the building and its structural solutions are described. The results of the materials research and the measurements of the used reinforcement have been presented. The structure diagnostic analyses were performed basing on measurements and research. The analysis allowed the determination of the limit loads. The results of the performed analysis of the current state turned out to be unsatisfactory, not only in terms of the planned storage load but also in terms of the current load state, as was shown by the construction analysis. W pracy przedstawiono problemy związane z adaptacją budynku dydaktycznego Collegium Chemicum przy ul. Grunwaldzkiej w Poznaniu na cele magazynowe Biblioteki Głównej UAM. Na wstępie opisano badany budynek oraz scharakteryzowano zastosowane w nim rozwiązania konstrukcyjne. Przedstawiono wyniki wykonanych badań materiałowych oraz pomiarów inwentaryzacyjnych zastosowanego zbrojenia. Na podstawie wykonanych pomiarów i badań przeprowadzono analizę diagnostyczną konstrukcji, która pozwoliła na wyznaczenie dopuszczalnych wartości obciążeń powierzchni stropowych. Wyniki wykonanej analizy konstrukcji w stanie istniejącym okazały się dalece niezadowalające nie tylko z punktu widzenia planowanych, znacznych obciążeń magazynowych. Analiza wykazała bowiem, że konstrukcja jest już znacznie przeciążona w aktualnym stanie jej obciążenia

  3. Z dziejów drukarstwa i handlu książką w Kołobrzegu w drugiej połowie XVII wieku

    Directory of Open Access Journals (Sweden)

    Radosław Gaziński

    2009-01-01

    Full Text Available W Archiwum Krajowym w Greifswaldzie w zespole archiwalnym Staatskanzelei zachowały się trzy jednostki archiwalne dotyczące drukarstwa i handlu książką w Kołobrzegu w drugiej połowie XVII wieku. Są to materiały o charakterze instytucjonalnym pokazujące problemy drukarstwa i handlu książką od strony brandenburskiej administracji prowincjonalnej. Drukarnię założono w Kołobrzegu za zgodą elektora Fryderyka Wilhelma w maju 1653 roku, a pierwszym drukarzem został Henryk Heissen. Po nim do końca XVII wieku drukarnię prowadzili: Jakub Kusen, Berger Campen i Johann Mikołaj Ernst. Drukarze w Kołobrzegu nie tylko drukowali książki, ale również sprzedawali je na terenie miasta. Obok nich w omawianym okresie działali tu także profesjonalni handlarze książkami: Jeremiasz Amphras, Jeremiasz Mamfass, Jakub Henning, Johan Danhardt i Jeremiasz Schrey. W drugiej połowie XVII wieku Kołobrzeg był, jak na warunki pomorskie, znaczącym centrum drukarstwa i handlu książką. Znaczenie to pomniejszyło przeniesienie stolicy prowincji do Stargardu (1668 rok.

  4. Ultrathin carbon nanopainting of LiFePO4 by oxidative surface polymerization of dopamine

    Science.gov (United States)

    Ding, Bo; Tang, Wei Chin; Ji, Ge; Ma, Yue; Xiao, Pengfei; Lu, Li; Lee, Jim Yang

    2014-11-01

    The common strategy to address the low electronic conductivity of LiFePO4 is to downsize LiFePO4 and to coat the nanocrystal with conductive carbon film. The major issues with existing carbon coating techniques are thickness and quality control. This paper reports a facile carbon coating method which can provide ultrathin, uniform and fully encapsulating carbon coating on LiFePO4. This coating method capitalizes on the redox chemistry of surface Fe3+ on solvothermally synthesized LiFePO4 nanocrystal, to deposit uniform thin films of polydopamine films. The polymer film is easily carbonized into ultrathin carbon film. The carbon coated LiFePO4 exhibits very high rate performance (143 mAh g-1 at current density of 1700 mA g-1) with excellent capacity retention.

  5. CsMgPO4

    Directory of Open Access Journals (Sweden)

    Nikolay S. Slobodyanik

    2009-08-01

    Full Text Available Caesium magnesium orthophosphate is built up from MgO4 and PO4 tetrahedra (both with . m. symmetry linked together by corners, forming a three-dimensional framework. The Cs atoms have .m. site symmetry and are located in hexagonal channels running along the a- and b-axis directions.

  6. Sb对ZA27合金尺寸稳定性及耐磨性的影响%Effect of Sb on Dimensional Stability and Wearing Resistance of ZA27 Alloy

    Institute of Scientific and Technical Information of China (English)

    赵海瑞; 夏兰廷; 刘楠; 李桂玲

    2008-01-01

    通过对Zn+Sb二元及ZA27+Sb多元锌基合金的试验数据检测、分析表明:Sb在ZA27合金中与Al形成AlSb化合物相,减少了富Al的α相数量,Sb可钝化α枝晶.Sb的加入提高了合金的尺寸稳定性和耐磨性.含0.5%Sb时,使ZA27合金的磨损量减少59%,在含1.0%Sb时,ZA27合金的尺寸稳定性提高了81%.Sb对ZA27合金韧性产生不利影响.

  7. Concentrations, profiles, and estimated human exposures for polychlorinated dibenzo-p-dioxins and dibenzofurans from electronic waste recycling facilities and a chemical industrial complex in Eastern China.

    Science.gov (United States)

    Ma, Jing; Kannan, Kurunthachalam; Cheng, Jinping; Horii, Yuichi; Wu, Qian; Wang, Wenhua

    2008-11-15

    Environmental pollution arising from electronic waste (e-waste) disposal and recycling has received considerable attention in recent years. Treatment, at low temperatures, of e-wastes that contain polyvinylchloride and related polymers can release polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs). Although several studies have reported trace metals and polybrominated diphenyl ethers (PBDEs) released from e-waste recycling operations, environmental contamination and human exposure to PCDD/Fs from e-waste recycling operations are less well understood. In this study, electronic shredder waste and dust from e-waste facilities, and leaves and surface soil collected in the vicinity of a large scale e-waste recycling facility in Taizhou, Eastern China, were analyzed for total PCDD/ Fs including 2,3,7,8-substituted congeners. We also determined PCDD/Fs in surface agricultural soils from several provinces in China for comparison with soils from e-waste facilities. Concentrations of total PCDD/Fs were high in all of the matrices analyzed and ranged from 30.9 to 11400 pg/g for shredder waste, 3460 to 9820 pg/g dry weight for leaves, 2560 to 148000 pg/g dry weight for workshop-floor dust, and 854 to 10200 pg/g dry weight for soils. We also analyzed surface soils from a chemical industrial complex (a coke-oven plant, a coal-fired power plant, and a chlor-alkali plant) in Shanghai. Concentrations of total PCDD/Fs in surface soil (44.5-531 pg/g dry wt) from the chemical industrial complex were lower than the concentrations found in soils from e-waste recycling plants, but higher than the concentrations found in agricultural soils. Agricultural soils from six cities in China contained low levels (3.44-33.8 pg/g dry wt) of total PCDD/Fs. Profiles of dioxin toxic equivalents (TEQs) of 2,3,7,8-PCDD/Fs in soils from e-waste facilities in Taizhou differed from the profiles found in agricultural soils. The estimated daily intakes of TEQs of PCDD/ Fs via soil/dust ingestion

  8. Zaštita potrošača u republici Hrvatskoj u kontekstu HarmoniZacije s pravnom stečevinom europske unije

    Directory of Open Access Journals (Sweden)

    Josipa Salac

    2014-12-01

    Full Text Available Pravo zaštite potrošača, kao novo područje prava, u hrvatskom se pravnom poretku počinje intenzivno razvijati radi pridruživanja Republike Hrvatske Europskoj uniji. Europska unija svojim direktivama regulira ovo područje zbog osiguravanja pravilnog funkcioniranja zajedničkog unutarnjeg tržišta u cilju da potrošačima u svim zemljama članicama osigura jednak stupanj zaštite jer među nacionalnim pravima postoje velike razlike. Zakonske odredbe kojima se u hrvatsko pravo zaštite potrošača preuzima europska stečevina sadržane su prvenstveno u Zakonu o zaštiti potrošača koji je donesen 2014. godine, ali i u Zakonu o obveznim odnosima te u brojnim drugim potrošačkim i nepotrošačkim propisima. Posljednjih desetak godina postignut je visok stupanj usklađenosti s europskim acquisom koji se odnosi na potrošače, ali on tu ne staje jer se ta materija na europskoj razini jako brzo razvija i bit će potrebne daljnje i sve češće izmjene i dopune propisa. Ipak, u procesu usklađivanja učinjeni su i brojni propusti koji su rezultirali neusuglašenošću potrošačkih odredaba u različitim propisima. Mnogobrojnost, nesistematiziranost i neusuglašenost pravnih izvora, kao i njihovo stalno mijenjanje, otežavaju primjenu širokog potrošačkog prava jer se zahtijeva njegovo dublje poznavanje. Pravilima o zaštiti potrošača nastoji se osigurati njihov bolji položaj na tržištu u odnosu na trgovca jer su slabija strana. Uobičajeno je da trgovci unaprijed kreiraju ugovore sa standardiziranim sadržajem te ih takve nude potrošačima, a mnoge su od tih formuliranih odredbi nepoštene. Prisutna je izrazita neravnopravnost potrošača u odnosu na trgovca, koji ili mora prihvatiti takve odredbe zbog monopolskog položaja trgovca ili čak nije ni svjestan da ih prihvaća, jer mu trgovac namjerno ne skreće pažnju na njih. Najčešće se nepoštene klauzule nalaze u adhezijskim ugovorima ili općim uvjetima poslovanja na koje potro

  9. Distribution of 210Po in soils of Virajpet taluk, Coorg District, Karnataka

    Directory of Open Access Journals (Sweden)

    M.M. Prakash

    2017-01-01

    Full Text Available The present investigation involves the distribution of 210Po in the soils of Virajpet taluk, in Coorg District. The soil samples were collected along a vertical profile at various locations. The samples were analyzed for determination of 210Po activity using standard radiochemical analytical method. The distribution of 210Po along vertical profile was found. The dependence of 210Po activity on organic matter and clay in a vertical profile were analysed. The texture of soil shows that soil is sandy loam or loamy sand, in which illuviation takes place easily. The 210Po activity varies from 1.59 Bqkg−1 to 13.95 Bqkg−1 in first layer, 0.49 Bqkg−1 to 9.79 Bqkg−1 in second layer and 0.58 Bqkg−1 to 6.14 Bqkg−1 in third layer. A negative correlation between organic matter percentage and 210Po activity was found in all the three layers with correlation coefficient −0.872, −0.643 and −0.505. A negative correlation was observed between clay percentage and 210Po activity, in all the three layers with correlation coefficient −0.749, −0.512 and −0.402. The organic matter leaches vertically downwards, due to flow of rainwater.

  10. Effect of Mn content on microstructure and mechanical properties of modified ZA-27 alloy

    Institute of Scientific and Technical Information of China (English)

    李元元; 龙雁; 陈维平; 张大童; 邵明

    2002-01-01

    ZA-27 alloys reinforced by Mn-containing intermetallic compounds were prepared and the effect of Mn content on their mechanical properties were examined. By adding Mn, rare earth elements(RE) and Ti into ZA-27, experimental alloys were fabricated by sand casting. The volume fraction, grain size and morphology of the Mn-containing intermetallic compound phases vary with the changing of Mn content. Mechanical properties of the reinforced ZA-27 alloys at elevated temperatures were measured. The results show that the hardness, compressive strength and compressibility of experimental alloys increase with increasing Mn content until they reach a maximum at 0.5% Mn. Excessive and coarse hard phases would act as crack origins instead of dispersion strengthening particles. Best tensile properties of these alloys at elevated temperature can be achieved at a Mn content of 0.18 %.

  11. Patentna zaštita poverljivih pronalazaka / Patent protection of classified invention

    Directory of Open Access Journals (Sweden)

    Obrad T. Čabarkapa

    2008-10-01

    Full Text Available Svaki pronalazak za koji se utvrdi da je značajan za odbranu i bezbednost Republike Srbije smatra se poverljivim. Za patentnu zaštitu poverljivih pronalazaka podnosi se prijava organu nadležnom za poslove odbrane, koji ima isključivo pravo da raspolaže poverljivim pronalascima1. U organizacijskoj jedinici nadležnoj za poslove naučne i inovacione delatnosti2 realizuje postupak ispitivanja poverljivih prijava patenata. Da bi se donela ocena o poverljivosti prijavljenog pronalaska neophodno je realizovati određene faze u postupku ispitivanja prijave. Poverljivi pronalazak se ne objavljuje, a pronalazač, nakon priznavanja patenta, u skladu sa zakonskim propisima, ima određena moralna i materijalna prava. / Every invention established to be of significance for defense or security of the Republic of Serbia is considered to be a classified invention. For the purpose of patent protection of classified inventions, a confidential application must be submitted to a relevant defense authority having the exclusive right to deal with classified inventions3. An organizational unit competent for scientific and innovation issues carries out the examination of classified patent applications. In order to evaluate classification of the submitted invention, regarding its significance for defense or security of the country as well as to make the final decision on the application, the examination procedure should be carried out through several phases. A classified invention is not to be published and once the patent has been approved, the inventor enjoys moral and material rights in accordance with law.

  12. Zaštita računarskih mreža / Protection of computer networks

    Directory of Open Access Journals (Sweden)

    Milojko Jevtović

    2005-09-01

    Full Text Available U radu su obrađene metode napada, oblici ugrožavanja i vrste pretnji kojima su izložene računarske mreže, kao i moguće metode i tehnička rešenja za zaštitu mreža. Analizirani su efekti pretnji kojima mogu biti izložene računarske mreže i informacije koje se preko njih prenose. Opisana su određena tehnička rešenja koja obezbeđuju potreban nivo zaštite računarskih mreža, kao i mere za zaštitu informacija koje se preko njih prenose. Navedeni su standardi koji se odnose na metode i procedure kriptozaštite informacija u računarskim mrežama. U radu je naveden primer zaštite jedne lokalne računarske mreže. / In this paper different methods of attacks, threats and different forms of dangers to the computer networks are described. The possible models and technical solutions for networks protection are also given. The effects of threats directed to the computer networks and their information are analyzed certain technical solutions that provide necessary protection level of the computer networks as well as measures for information protection are also described. The standards for methods and security procedure for the information in computer networks are enlisted. There is also an example of protecting one local data network (in this paper.

  13. Primer uticaja filtriranja slike u sistemima za praćenje ciljeva primenom termovizije / An example of image filtering in target tracking systems with thermal imagery

    Directory of Open Access Journals (Sweden)

    Zvonko M. Radosavljević

    2003-07-01

    Full Text Available U radu je dat primer primene jedne vrste niskofrekventnog filtriranja sa usrednjavanjem, koje se primenjuje u sistemima za detekciju i praćenje ciljeva u vazdušnom prostoru primenom termovizije. Date su dve metode filtriranja slike. Prva metoda koristi niskofrekventno konvoluciono filtriranje a druga usrednjavajući filtar na osnovu srednje vrednosti nivoa sivog. Ovi filtri su primenjeni u sistemima za praćenje uz pomoć infracrvenih senzora. Određivanje nivoa praga filtriranja vrši se uz pomoć statističkih osobina slike. Veoma važan korak u procesu praćenja je određivanje prozora praćenja, koji maze biti, po dimenzijama, fiksan ili adaptibilan. Pogrešna procena o postojanju cilja u prozoru može se doneti u slučaju prisustva šuma pozadine, predpojačavača, detektora, itd. Filtriranje je neophodan korak u ovim sistemima, kao značajan činilac U povećanju brzine i tačnosti praćenja. / A case of image filtering in air target detecting and tracking systems is described in this paper. Two image filtering methods are given. The first method is performed using a low pass convolving filter and the second one uses the mean value of gray level filter. The main goal of the cited filtering is implementation in IR (infra red systems. Some statistical features of the images were used for selecting the threshold level. The next step in the algorithm is the determination of a 'tracking window' that can be fixed or adaptive in size. A false estimation of a target existing in the window may be influenced by the background noise, low noise amplifier detector, etc.

  14. Razvoj tehnologije Stirling sunčevog tanjura za buduću primjenu

    OpenAIRE

    Monne, Carlos; Bravo, Yolanda; Alonso, Sergio; MORENO, FRANCISCO; Munoz, Mariano

    2013-01-01

    Tehnologija Stirling sunčevog tanjura za proizvodnju električne energije, koristeći Stirling-ov motor napajan iz obnovljivog izvora energije kao što je sunce, predstavlja obećavajući razvoj u pogledu proizvodnje električne energije. S učinkovitošću od oko 30% tehnologija Stirling sunčevog tanjura jest najučinkovitiji solarni sustav za proizvodnju elekrične energije. Međutim, sadašnji napredak tehnologije nije dovoljan kako bi se postigla konkurentnost s drugim obnovljivim izvorima energije. P...

  15. PRIMERJAVA POROČIL ZA VODENJE INFORMATIKE COBIT 4.1 IN COBIT 5

    OpenAIRE

    Štagar, Darja

    2012-01-01

    V diplomskem delu smo predstavili področja upravljanja informatike, ki jih je za uspešno poslovanje potrebno upravljati organizirano. Priporočljiva je uporaba različnih standardov in priporočil, zato smo v delu predstavili nekatere standarde in priporočila, ki to omogočajo. Glavna tema te naloge so priporočila za vodenje informatike CobIT, ki smo jih tudi podrobneje predstavili. Obravnavali smo zadnji dve različici, CobIT 4.1 in CobIT 5. Ker sta si med seboj bistveno različni, smo ju primerja...

  16. RAZVOJ MODULA ZA INTERAKTIVNI PRIKAZ LOKACIJE OBJEKTOV NA SVETOVNEM SPLETU S 3D GRAFIKO

    OpenAIRE

    Škerjanec, Luka

    2015-01-01

    Tema diplomskega dela je razvoj modula za prikaz in upravljanje 3D objektov preko svetovnega spleta s pomočjo strojnega vmesnika za potrebe interaktivnega grafičnega prikaza lokacije. Rešitev omogoča interaktivni 3D prikaz v spletnem pregledovalniku. Razvoj rešitve je potekal na strežniku z nameščenim operacijskim sistemom Ubuntu 12.04 LTS, na katerega je povezan mikrokontroler Arduino Uno in potenciometri kot manipulatorji lokacije. Mikrokontroler Arduino Uno, na katerega so priklju...

  17. Razvoj programa za bilježenje prijeanalitičkih pogrešaka

    OpenAIRE

    Lippi, Giuseppe; Bonelli, Patrizia; Rossi, Rossana; Bardi, Mirco; Aloe, Rosalia; Caleffi, Alberta; Bonilauri, Enrichetta

    2010-01-01

    Uvod: Iako je doprinos laboratorijskoj dijagnostici od integralne važnosti u procesu donošenja kliničkih odluka, kvaliteta rada i sigurnost tijekom dijagnostičkih analiza od ključnog su značaja za unaprjeđenje zdravstvene zaštite koja je na visokom stupnju što se kvalitete i sigurnosti tiče. Unatoč izvanrednom napretku u kvaliteti cjelokupnog procesa laboratorijske analize, prijeanalitička varijabilnost predstavlja vodeći izvor pogrešaka i nesigurnosti. Uvođenje sistematične politike bilježen...

  18. PROTOTIPNA REŠITEV ZA SPREMLJANJE RAZVOJA OTROK V VZGOJNO-IZOBRAŽEVALNEM ZAVODU

    OpenAIRE

    Rozman, Jože

    2016-01-01

    V diplomski nalogi smo razvili prototipno rešitev elektronskega spremljanja napredka učencev v vzgojno-izobraževalnem zavodu. Prikazali smo možnost vodenja dokumentacije z uporabo informacijske tehnologije. Zgradili smo relacijski podatkovni model, ki je osnova za podatkovne tabele, v katerih so sistematično razvrščeni podatki. Programska rešitev je izdelana v okolju Microsoft Access 2016. Razvita rešitev je namenjena demonstraciji brezpapirnega poslovanja. Za nadaljnji razvoj prototipa smo p...

  19. IZOBRAŽEVANJE ZAPOSLENIH NA ZAVODU REPUBLIKE SLOVENIJE ZA TRANSFUZIJSKO MEDICINO

    OpenAIRE

    Lanišek, Urša

    2013-01-01

    Kot vemo, je izobraževanje zaposlenih dobra investicija in se obrestuje kratkoročno ter tudi dolgoročno. Izobraževanje zaposlenih zagotavlja uspešnost podjetja, v tem primeru Zavoda Republike Slovenije za transfuzijsko medicino. Zaposleni, ki se pozitivno odzivajo na izobraževanja in se jih udeležujejo, se zavedajo, da je s tem povezana tudi njihova nadaljnja delovna kariera. Namen diplomske naloge je prikazati izobraževanje zaposlenih na Zavodu Republike Slovenije za transfuzijsko medicino. ...

  20. Razvoj i primena hemometrijskih metoda za klasifikaciju i procenu kvaliteta vode

    OpenAIRE

    2013-01-01

    Savremeno društvo karakteriše intenzivna industrijalizacija i urbanizacija, što ima za posledicu sve obimnije iscrpljivanje prirodnih resursa i sve opasnije ugrožavanje životne sredine. U uslovima globalnog razvoja, briga o vodi predstavlja pitanje opstanka civilizacije. Stoga upravljanje vodama i kontrola kvaliteta voda postaju suštinska društvena potreba. Timovi stručnjaka iz različitih oblasti pokušavaju da nađu obrasce i modele za modelovanje parametara kvaliteta vode i pre...

  1. PRIMERJAVA POROČIL ZA VODENJE INFORMATIKE COBIT 4.1 IN COBIT 5

    OpenAIRE

    2012-01-01

    V diplomskem delu smo predstavili področja upravljanja informatike, ki jih je za uspešno poslovanje potrebno upravljati organizirano. Priporočljiva je uporaba različnih standardov in priporočil, zato smo v delu predstavili nekatere standarde in priporočila, ki to omogočajo. Glavna tema te naloge so priporočila za vodenje informatike CobIT, ki smo jih tudi podrobneje predstavili. Obravnavali smo zadnji dve različici, CobIT 4.1 in CobIT 5. Ker sta si med seboj bistveno različni, smo ju primerja...

  2. UPORABA ČRTNE KODE ZA UPRAVLJANJE IZDELKOV V SKLADIŠČU

    OpenAIRE

    Drofenik, Darja

    2012-01-01

    V diplomski nalogi smo predstavili sistem upravljanja izdelkov v skladišču z uporabo črtne kode. Opisali smo različne vrste črtnih kod, njihovo uporabo in strukturo. Seznanili smo se s čitalniki črtne kode. Spoznali smo, kaj je pomembno pri izdelavi črtnih kod. V praktičnem delu pa smo posebno pozornost posvetili postopku izvažanja in dovažanja izdelkov v skladišču. Opisali smo potrebne ukrepe za uvedbo črtne kode v postopek skladiščenja. Na koncu smo še predstavili delovanje aplikacije za up...

  3. Dostopnost treh muzejev za osebe s slepoto in slabovidnostjo na Gorenjskem

    OpenAIRE

    Benedičič, Maja

    2015-01-01

    V magistrskem delu govorimo o področju dostopnosti muzejev za osebe s slepoto in slabovidnostjo. Obiskovanje le-teh predstavlja osebam s slepoto in slabovidnostjo eno izmed prostočasnih aktivnosti, kjer se lahko izobražujejo in družijo. Ker so razstave muzejev v veliko primerih zasnovane za videčo populacijo, imajo lahko osebe s slepoto in slabovidnostjo pri obiskovanju muzejev manj prijetne izkušnje. V svojem delu smo se osredotočili na dostopnost treh muzejev na Gorenjskem. S sistematič...

  4. In vitro osjetljivost bakterije Streptococcus oralis na različite otopine za ispiranje usta

    OpenAIRE

    Cavalcanti, Alessandro Leite; LEITE,Rafaella Bastos; Oliveira, Mariana da Costa; Cabral Xavier, Alidianne Fábia; de Castro, Ricardo Dias

    2012-01-01

    Svrha: Otopine za ispiranje usta često su prvi izbor u slučaju kemijske kontrole zubnog biofilma. Željelo se in vitro procijeniti kakva je osjetljivost bakterije Streptococcus oralis (ATCC 10557) na komercijalne otopine za ispiranje usta koje se prodaju na brazilskom tržištu. Metode: Procjenjivalo se sedam otopina: Equate®, Colgate Plax Overnight®, Sanifill®, Cepacol Cool Citrus® i Oral-B® (cetylpyridinium chlorid – cetilpiridinij klorid), Listerine® (thymol – timol) i Peroxyl® (hydrogen ...

  5. Optimiranje podloge za proizvodnju β-galaktozidaze iz soja kvasca Kluyveromyces marxianus CCT 7082

    OpenAIRE

    2008-01-01

    Ispitana je aktivnost β-galaktozidaze u sedam sojeva vrste Kluyveromyces u sintetskoj podlozi. Za optimiranje podloge odabran je soj Kluyveromyces marxianus CCT 7082 koji je proizveo najviše enzima. Pri određivanju najznačajnijih varijabla sastava podloge za proizvodnju enzima primijenjen je reducirani faktorski plan 2^(4-1). Istraženi su sljedeći parametri: koncentracija laktoze, kvaščeva ekstrakta i (NH4)2SO4 te pH-vrijednost, pa je utvrđeno da svi parametri značajno utječu na proizvodnju e...

  6. SPREMLJANJE ENERGIJSKE PORABE KIBERNETIČNE MOBILNE PLATFORME ZA SIMULACIJO MIKROLOGISTIČNIH PROCESOV

    OpenAIRE

    Orehar, Luka

    2016-01-01

    V diplomskem delu je opisan razvoj programskega vmesnika za spremljanje porabe kibernetičnih robotskih platform. Opisana sta programska vmesnika za senzor napetosti in toka z jezikom JavaScript. Meritve so izvedene v realnem času, le-te je moč prikazati tudi na mobilnih napravah. S pomočjo preračuna je ob upoštevanju časa ocenjena poraba električne energije. Podatki o porabi so zapisani v podatkovno bazo Redis. Izvedene so bile meritve porabe pri različnih pogojih delovanja.

  7. In vitro osjetljivost bakterije Streptococcus oralis na različite otopine za ispiranje usta

    OpenAIRE

    Cavalcanti, Alessandro Leite; Leite, Rafaella Bastos; Oliveira, Mariana da Costa; Cabral Xavier, Alidianne Fábia; Castro, Ricardo Dias de

    2012-01-01

    Svrha: Otopine za ispiranje usta često su prvi izbor u slučaju kemijske kontrole zubnog biofilma. Željelo se in vitro procijeniti kakva je osjetljivost bakterije Streptococcus oralis (ATCC 10557) na komercijalne otopine za ispiranje usta koje se prodaju na brazilskom tržištu. Metode: Procjenjivalo se sedam otopina: Equate®, Colgate Plax Overnight®, Sanifill®, Cepacol Cool Citrus® i Oral-B® (cetylpyridinium chlorid – cetilpiridinij klorid), Listerine® (thymol – timol) i Peroxyl® (hydrogen ...

  8. Poésie et politique

    OpenAIRE

    Artières,Philippe; Avanza, Martina; Baranova, Tatiana Debbagi; Belalimat, Nadia; Bourdin, Alain; Callac, Emmanuelle; Clément, Fabrice; Čolović, Ivan; Dragomir, Lucia; Huhn, Rosemarie; Martel, Philippe; Morel, Alain

    2005-01-01

    Qu'il s'agisse de poésie officielle, révolutionnaire, protestataire ou partisane ou encore du rôle des poètes dans la vie quotidienne de la cité, ce sont les usages sociaux et politiques de la poésie aujourd'hui sont au centre de ce dossier.

  9. Hexamethylenetetramine assisted hydrothermal synthesis of BiPO4 and its electrochemical properties for supercapacitors

    Science.gov (United States)

    Nithya, V. D.; Kalai Selvan, R.; Vasylechko, Leonid

    2015-11-01

    The well defined microstructures of BiPO4 were successfully synthesized by the facile hexamethylenetetramine (HMT) assisted hydrothermal method. The low temperature monoclinic BiPO4 structure with space group P21/n, were obtained from X-ray diffraction (XRD) for the pristine and HMT-assisted BiPO4 with 1, 3, 5 and 10 mmole concentration. A transformation from low temperature monazite-type phase to the high temperature SbPO4-type phase of BiPO4 was observed at the 10 mmole concentration. There was a variation in the morphology from polyhedron to octahedra-like and finally into cube shape upon an increase in concentration of HMT. The role of reaction time in the morphology of BiPO4 particles was investigated. The selected area electron diffraction (SAED) pattern elucidated the ordered dot pattern and the calculated d-spacing revealed the formation of BiPO4. An increased specific capacitance of HMT assisted materials (202 F/g) compared with pristine BiPO4 (89 F/g) at 5 mA/cm2 was observed upon morphological variation due to HMT addition.

  10. Visible light responsive porous Lanthanum-doped Ag3PO4 photocatalyst with high photocatalytic water oxidation activity.

    Science.gov (United States)

    Xie, Ying Peng; Wang, Guo Sheng

    2014-09-15

    This paper report a facile route of synthesizing Ag3PO4 crystal with smooth surface, and La-doped Ag3PO4 crystal with porous surface by accurately controlling the kinetic parameters during chemical precipitation process. As a result of surface modification induced by La doping, the La-doped Ag3PO4 crystal shows a higher photocatalytic activity than Ag3PO4 crystal in O2 evolution from water splitting. The improved photocatalytic activity of La-doped Ag3PO4 is attributed to the synergistic effects of porous surface structure, abundant surface defects and increased surface area. The result also shows that La doping concentration has a remarkable effect on the photocatalytic activity of Ag3PO4.

  11. Formability and Mechanical Properties of the ZA27 Alloy Worm Gear Blanks%ZA27合金蜗轮毛坯的成形性与力学性能

    Institute of Scientific and Technical Information of China (English)

    崔联合

    2012-01-01

    ZA27蜗轮毛坯进行了金属型铸造、挤压铸造和半固态挤压成形试验,研究了在不同工艺条件下,制件的宏观成形性、微观组织形貌和力学性能.结果发现,金属型铸造蜗轮毛坯组织从齿顶到分度圆,均为细密发达的树枝晶;挤压铸件齿顶无树枝状枝晶,齿根的树枝晶晶臂有碎断现象,分度圆枝晶组织破碎圆整痕迹较为明显;半固态挤压件齿顶晶粒组织细化,分布较为均匀,齿根部呈典型的玫瑰状半固态组织形貌,分度圆为细小的等轴晶粒组织.金属型铸造蜗轮齿型成形困难;挤压铸造制备的蜗轮,外观轮廓清晰,齿形饱满;半固态挤压件成形性更加优良.半固态成形件力学性能高于挤压铸造和金属型铸件.%Macroscopic formability, microstructure and mechanical properties of the ZA27 alloy worm gear blanks in permanent mold casting, in liquid forging and in semisolid die forging were investigated under various process conditions. The results show that the microstructure of the worm gear in permanent mold casting is fine-developed dendrite from the addendum to the graduated circle. Absence of den-dritie in the addendum and broken phenomenon of the dendrite arm in the dedendum of the worm gear in liquid die forging can be observed, and it is obvious that the dendritic structure in the graduated circle is broken and spheroidized. The refined microstructure in the addendum with uniform distribution and rosette structure in the dedendum are presented in semisolid die forging, and the microstructure in the graduated circle exhibits fine equiaxed grain. It is difficult for the tooth profile of worm gear to form by permanent mold casting, and the worm gear has clear outline with plumptooth profile by liquid forging and the formability is more desirable by semisolid die forging. The mechanical properties of the parts by semisolid die forging are superior to those prepared by permanent mold casting and by liquid

  12. Environmental Management Waste Management Facility Proxy Waste Lot Profile 6.999 for Building K-25 West Wing, East Tennessee Technology Park, Oak Ridge, Tennessee

    Energy Technology Data Exchange (ETDEWEB)

    Rigsby V.P.

    2009-02-12

    In 1989, the Oak Ridge Reservation (ORR), which includes the East Tennessee Technology Park (ETTP), was placed on the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) National Priorities List. The Federal Facility Agreement (FFA) (DOE 1992), effective January 1, 1992, now governs environmental restoration activities conducted under CERCLA at the ORR. Following signing of the FFA, U.S. Department of Energy (DOE), U.S. Environmental Protection Agency (EPA), and the state of Tennessee signed the Oak Ridge Accelerated Cleanup Plan Agreement on June 18, 2002. The purpose of this agreement is to define a streamlined decision-making process to facilitate the accelerated implementation of cleanup, resolve ORR milestone issues, and establish future actions necessary to complete the accelerated cleanup plan by the end of fiscal year 2008. While the FFA continues to serve as the overall regulatory framework for remediation, the Accelerated Cleanup Plan Agreement supplements existing requirements to streamline the decision-making process. Decontamination and decommissioning (D&D) activities of Bldg. K-25, the original gaseous diffusion facility, is being conducted by Bechtel Jacobs Company LLC (BJC) on behalf of the DOE. The planned CERCLA action covering disposal of building structure and remaining components from the K-25 building is scheduled as a non-time-critical CERCLA action as part of DOE's continuous risk reduction strategy for ETTP. The K-25 building is proposed for D&D because of its poor physical condition and the expense of surveillance and maintenance activities. The K-25/K-27 D&D Project proposes to dispose of the commingled waste listed below from the K-25 west side building structure and remaining components and process gas equipment and piping at the Environmental Management Waste Management Facility (EMWMF) under waste disposal proxy lot (WPXL) 6.999: (1) Building structure (e.g. concrete floors [excluding basement

  13. Data of evolutionary structure change: 1CTMA-1E2ZA [Confc[Archive

    Lifescience Database Archive (English)

    Full Text Available 1CTMA-1E2ZA 1CTM 1E2Z A A YPIFAQQNYENPREATGRIVCANCHLASKPVDIEVPQAV...EEEEEEEE EEEEEEEE - EEEEEEE EEE EEEEEEEEEE 0 1CTM A 1CTMA ILRKE--KGGYE ure>EEEE -- EEEure> ITALSEKKGGFE EEEE EEEure>

  14. Modification Mechanism of Rare Earth Elements in ZA27 Casting Alloys

    Institute of Scientific and Technical Information of China (English)

    刘贵立; 李荣德

    2003-01-01

    The model of the liquid-phase ZA27 alloys was set up by molecular dynamics theory. The atomic structure of phase, RE-compounds, and the phase-liquid interface in ZA27 alloys were constructed by computer programming. Electronic structures of phase with rare earth elements dissolved and of phase-liquid interfaces with rare earth elements enrichment in ZA27 casting alloys were investigated by using the Recursion method. The ESE energy of RE elements and the structure energy of RE-compounds, phase, and the liquid-phase ZA27 alloys were calculated. The results show that rare earth elements are more stable to be in the phase interface than in phase, which explains the fact of very small solid so lubility of rare earth elements in phase, and the enrichment in the solid-liquid growth front. This makes dendrite melt and break down, dissociate and propagate. RE-compounds can act as heterogeneous nuclei for phase, leading to phase refinement. All above elucidates the modification mechanism of rare earth elements in zinc-aluminum casting alloys at electronic level.

  15. EFFECT OF ANNEALING ON DAMPING CAPACITIES OF AS-CAST ZA27 ALLOY

    Institute of Scientific and Technical Information of China (English)

    Z.M. Zhang; J.C. Wang; H.Z. Liu; X.F. Guo

    2006-01-01

    ZA27 alloy was prepared by casting with permanent mold and then annealed at 250℃for 1-4h.The damping capacity of the alloy was measured using a testing apparatus based on the cantilever beam technique. It was found that the as-cast ZA27 alloy possesses high damping capacity with the value of 1.3 × 10-3 at 320Hz. After annealed at 250℃ for 1h, the damping capacity decreases to 1.1 × 10-3 and then remains constant even when the annealing time is increased to 4h. The microstructure of the as-cast ZA27 alloy consists of large dendrites of Al-rich primary α-phases, eutectoid (α + η) and nonequilibrium eutectic phases (α + η + ε). After annealing at 250℃ for 1h, the ε phase disappears due to dissolution into the matrix, and the spacing between the flakes of eutectoid increases. The further increase in the annealing time has little effect on the spacing. The damping mechanism of the alloy was discussed considering the thermoelastic damping and defect damping. The value of thermoelastic damping accounts only for 7%-8% in the overall damping in cantilever beam damping measurements and the damping capacity of the ZA27 alloy came mainly from defect damping.

  16. Presidendi peolaua katavad Roman Zaštšerinski ja Imre Kose / Kristi Leppik

    Index Scriptorium Estoniae

    Leppik, Kristi

    2008-01-01

    Vt. ka Postimees : na russkom jazõke 14. veebr. 2008, lk. 2. Eesti Vabariigi aastapäeva presidendi vastuvõtu peakokad on restorani Ö peakokk Roman Zaštšerinski ja Imre Kose. Vt. samas: Retseptisoovitus 24. veebruariks

  17. Presidendi peolaua katavad Roman Zaštšerinski ja Imre Kose / Kristi Leppik

    Index Scriptorium Estoniae

    Leppik, Kristi

    2008-01-01

    Vt. ka Postimees : na russkom jazõke 14. veebr. 2008, lk. 2. Eesti Vabariigi aastapäeva presidendi vastuvõtu peakokad on restorani Ö peakokk Roman Zaštšerinski ja Imre Kose. Vt. samas: Retseptisoovitus 24. veebruariks

  18. ZaP-HD: High Energy Density Z-Pinch Plasmas using Sheared Flow Stabilization

    Science.gov (United States)

    Golingo, R. P.; Shumlak, U.; Nelson, B. A.; Claveau, E. L.; Doty, S. A.; Forbes, E. G.; Hughes, M. C.; Kim, B.; Ross, M. P.; Weed, J. R.

    2015-11-01

    The ZaP-HD flow Z-pinch project investigates scaling the flow Z-pinch to High Energy Density Plasma, HEDP, conditions by using sheared flow stabilization. ZaP used a single power supply to produce 100 cm long Z-pinches that were quiescent for many radial Alfven times and axial flow-through times. The flow Z-pinch concept provides an approach to achieve HED plasmas, which are dimensionally large and persist for extended durations. The ZaP-HD device replaces the single power supply from ZaP with two separate power supplies to independently control the plasma flow and current in the Z-pinch. Equilibrium is determined by diagnostic measurements of the density with interferometry and digital holography, the plasma flow and temperature with passive spectroscopy, the magnetic field with surface magnetic probes, and plasma emission with optical imaging. The diagnostics fully characterize the plasma from its initiation in the coaxial accelerator, through the pinch, and exhaust from the assembly region. The plasma evolution is modeled with high resolution codes: Mach2, WARPX, and NIMROD. Experimental results and scaling analyses are presented. This work is supported by grants from the U.S. Department of Energy and the U.S. National Nuclear Security Administration.

  19. Data of evolutionary structure change: 1B1ZA-2NTSA [Confc[Archive

    Lifescience Database Archive (English)

    Full Text Available 1B1ZA-2NTSA 1B1Z 2NTS A A DPDPSQLHRSSLVKNLQNIYFLYE-GDPVTHENVKSVDQ...ELDYKVRKYLTDNKQLYTN--------------GPSKYETGYIKFIPKNKESFWFDFF-PEPEFTQSKYLMIYKDNETLDSNTSQIEVYLTT-- ...ine> 2NTS A 2NTSA 2NTS A 2NTS.../line> PHE CA 274 2NTS A 2NTS

  20. Environmental Management Waste Management Facility Waste Lot Profile 155.5 for K-1015-A Laundry Pit, East Tennessee Technology Park Oak Ridge, Tennessee

    Energy Technology Data Exchange (ETDEWEB)

    Bechtel Jacobs, Raymer J.E.

    2008-06-12

    In 1989, the Oak Ridge Reservation (ORR), which includes the East Tennessee Technology Park (ETTP), was placed on the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) National Priorities List. The Federal Facility Agreement (FFA) (DOE 1992), effective January 1, 1992, now governs environmental restoration activities conducted under CERCLA at the ORR. Following signing of the FFA, U.S. Department of Energy (DOE), U.S. Environmental Protection Agency (EPA), and the state of Tennessee signed the Oak Ridge Accelerated Cleanup Plan Agreement on June 18, 2003. The purpose of this agreement is to define a streamlined decision-making process to facilitate the accelerated implementation of cleanup, to resolve ORR milestone issues, and to establish future actions necessary to complete the accelerated cleanup plan by the end of fiscal year 2008. While the FFA continues to serve as the overall regulatory framework for remediation, the Accelerated Cleanup Plan Agreement supplements existing requirements to streamline the decision-making process. The disposal of the K-1015 Laundry Pit waste will be executed in accordance with the 'Record of Decision for Soil, Buried Waste, and Subsurface Structure Actions in Zone, 2, East Tennessee Technology Park, Oak Ridge, Tennessee' (DOB/ORAH-2161&D2) and the 'Waste Handling Plan for the Consolidated Soil and Waste Sites with Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee' (DOE/OR/01-2328&D1). This waste lot consists of a total of approximately 50 cubic yards of waste that will be disposed at the Environmental Management Waste Management Facility (EMWMF) as non-containerized waste. This material will be sent to the EMWMF in dump trucks. This profile is for the K-1015-A Laundry Pit and includes debris (e.g., concrete, metal rebar, pipe), incidental soil, plastic and wood, and secondary waste (such as plastic sheeting, hay bales and other erosion control materials, wooden

  1. Rozpoznání počasí z pohledu venkovní stacionární kamery

    OpenAIRE

    Jenčo, Michal

    2014-01-01

    Tato práce řeší rozpoznávání počasí z pohledu stacionární venkovní kamery se záběrem krajiny, a tokonkrétně mlhy, jasného, polojasného a zamračeného počasí. Zvolený problém byl vyřešen výpočtempěti obrazových příznaků a strojového učení. Podařilo se dosáhnout celkové úspěšnosti rozpoznávání95% s jenom malými odchýlkami mezi jednotlivými typmi počasí. Hlavným zjištěním této práce je,že za pomoci zvolené sady jednoduchých příznaků je možno úspěšně odlišit zvolené typy počasí.Výsledky této práce...

  2. Effects of lifestyle intervention in pregnancy and anthropometrics at birth on offspring metabolic profile at 2.8 years - results from the Lifestyle in Pregnancy and Offspring (LiPO) study

    DEFF Research Database (Denmark)

    Tanvig, Mette; Vinter, Christina A; Jørgensen, Jan S

    2014-01-01

    Context: Maternal obesity and gestational weight gain are linked to offspring adverse metabolic profile, and lifestyle intervention during pregnancy in obese women may have long-term positive effect on their children. Furthermore, although the association between birth weight and later metabolic...... outcomes is well established, little is known about the predictive value of abdominal circumference at birth. Objectives: To study: i) effects of lifestyle intervention during pregnancy in obese women on offspring metabolic risk factors and ii) predictive values of birth weight (BW) and birth abdominal...... circumference (BAC). Design: Follow-up of a randomized controlled trial; the Lifestyle in Pregnancy (LiP) study Setting: Odense and Aarhus University Hospitals, Denmark Participants: Offspring of LiP study participants (n=157) and offspring of normal weight mothers (external reference group, ER, n=97...

  3. $^{206}$ Po sources for production and release studies relevant for high power spallation targets

    CERN Multimedia

    The knowledge of the evaporation behaviour of Po is of essential importance for several scientific and technological applications, like accelerator driven systems (ADS) or the LIEBE project at CERN-ISOLDE. Fundamental investigations on the experimental conditions for the formation of volatile Po species as well as on the chemical composition of the volatile compounds are necessary for a safe operation of such facilities. $^{206}$Po, a mainly $\\gamma$- ray-emitting Po isotope with a half-life of 8.8 d, is best suited for model studies, due to the lower radiation hazard compared to the longer-lived $\\alpha$-emitting isotopes $^{208-210}$Po as well as the easy-to-measure $\\gamma$-ray emission. We propose the production of $^{206}$Po samples in several matrices via the implantation of its precursor $^{210}$Fr into selected metal foils at CERN-ISOLDE. Using these samples, experiments will be carried out at PSI studying the volatilization of Po from different matrices under varying chemical conditions.

  4. Effects of Different Si/Al and Modification on Si Phase in ZA27 Alloys%不同Si/Al比和变质处理对ZA27合金中Si相形态的影响

    Institute of Scientific and Technical Information of China (English)

    杨斌; 夏兰廷; 蔺虹宾; 刘楠

    2007-01-01

    分析了Al-Si合金中初生Si相的变化规律,并与相同Si/Al比的ZA27合金中析出的Si相作比较,提出了将Al-Si合金中对Si相的变质工艺应用到ZA27合金中,细化组织中的Si相.结果表明,在ZA27合金中Si相的变化规律与Al-Si合金中的Si相大致相同,用1.5%的Cu-P中间合金对ZA27合金进行变质处理,可获得良好的变质效果.

  5. Synthesis and Photocatalytic Activity of Ag3PO4 Triangular Prism

    Directory of Open Access Journals (Sweden)

    Pengyu Dong

    2015-01-01

    Full Text Available Ag3PO4 triangular prism was synthesized by a facile chemical precipitation approach by simply adjusting external ultrasonic condition. The as-synthesized Ag3PO4 triangular prism was characterized by X-ray diffraction pattern (XRD, field emission scanning electron microscopy (SEM, fourier transform infrared (FTIR spectra, and ultraviolet-visible diffuse reflectance (UV-vis DRS absorption spectra. The photocatalytic activity of Ag3PO4 triangular prism was evaluated by photodegradation of organic methylene blue (MB, rhodamine B (RhB, and phenol under visible light irradiation. Results showed that Ag3PO4 triangular prism exhibited higher photocatalytic activity than N-doped TiO2 and commercial TiO2 (P25 under visible light irradiation.

  6. Processes controlling the distributions of Cd and PO4 in the ocean

    Science.gov (United States)

    Quay, Paul; Cullen, Jay; Landing, William; Morton, Peter

    2015-06-01

    Depth profiles of dissolved Cd and PO4 from a global data compilation were used to derive the Cd/P of particles exported from the surface layer, and the results indicate lowest values in the North Atlantic (0.17 ± 0.05), highest in the Southern (0.56 ± 0.24), and intermediate in the South Indian (0.31 ± 0.14) and North Pacific (0.36 ± 0.08) Ocean basins. The Cd/P of exported particles in high nutrient-low chlorophyll (HNLC) regions is twice that for particles exported in non-HNLC regions as is the fractionation effect during biological uptake of Cd and PO4, and these trends primarily determine the spatial trends of dissolved Cd/PO4 observed in the surface ocean. In deep waters the lowest dissolved Cd/PO4 of 0.23 ± 0.07 is found in the North Atlantic Ocean and the result primarily of low Cd/PO4 of North Atlantic Deep Water (0.23). In contrast, deep waters in the Southern Ocean have significantly higher dissolved Cd/PO4 (0.30 ± 0.06), which is a result of the Cd/PO4 of upwelled deep water from the South Pacific and South Indian (0.28) and the high Cd/P of degrading particles. A multibox model that accounts for the impacts of particle degradation and thermohaline circulation in the deep sea yields dissolved Cd and PO4 interbasin trends close to observations. Model experiments illustrate the dependence of the dissolved Cd/PO4 of the deep sea on the extent of HNLC conditions in the Southern Ocean and the impact on reconstructing paleo PO4 concentrations from a Cd proxy.

  7. Požarna varnost lesenih konstrukcij

    OpenAIRE

    Štupnik, Igor

    2016-01-01

    Namen diplomske naloge je prikaz postopkov izračuna požarne varnosti lesenih konstrukcij. Predstavljeni so predlogi izboljšave izračunov po standardu SIST EN 1995-1-2, ki temeljijo na požarnih testih in so opisani v Evropskih tehničnih smernicah. Praktični izračuni so prikazani na primerih lesenih elementov Vrtca Preddvor.

  8. Zaštita na radu prilikom izvođenja građevinskih radova i upotrebi mehanizacije

    Directory of Open Access Journals (Sweden)

    Miloš Z. Petrović

    2014-04-01

    Full Text Available Zaštita prilikom rukovanja građevinskom mehanizacijom, kao i pri izvođenju građevinskih radova, bitan je i značajan faktor u celokupnom kompleksnom procesu izgradnje. Pažljivim rukovanjem štite se ljudski životi i životna sredina, kao i sami građevinski materijali. Pažljivim i dobrim rukovanjem i izvođenjem može se postići i finansijska ušteda i da ne dođe do dodatnih troškova. Mere zaštite koje treba preduzeti su: zaštita od opasnost u toku izvođenja radova i zaštita od opasnosti u toku eksplatacije objekta. Ova oblast je striktno definisana zakonskom regulativom. 

  9. Synthesis of graphene oxide-BiPO{sub 4} composites with enhanced photocatalytic properties

    Energy Technology Data Exchange (ETDEWEB)

    Lv, Hongwei [School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013 (China); Shen, Xiaoping, E-mail: xiaopingshen@163.com [School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013 (China); Ji, Zhenyuan [School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013 (China); Qiu, Dezhou; Zhu, Guoxing; Bi, Yongliang [School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013 (China)

    2013-11-01

    Graphene has attracted considerable attention for developing highly efficient photocatalysts due to its unique two dimensional structure and extraordinary physicochemical properties. In this paper, we demonstrate a facile two-phase self-assembly approach for the synthesis of graphene oxide (GO)-BiPO{sub 4} nanocomposites. The as-prepared samples were characterized by X-ray diffraction, transmission electron microscopy, Raman spectra, UV–vis diffuse reflectance spectra and Fourier transform infrared spectra. The significantly enhanced photocatalytic activity of the GO-BiPO{sub 4} nanocomposites in comparison with bare BiPO{sub 4} nanoparticles was revealed by the degradation of methylene blue under simulated sunlight irradiation, which can be attributed to the improved separation of electron–hole pairs. This facile method could be extended to design other graphene-based photocatalysts for environment and energy applications.

  10. Synthesis of graphene oxide-BiPO4 composites with enhanced photocatalytic properties

    Science.gov (United States)

    Lv, Hongwei; Shen, Xiaoping; Ji, Zhenyuan; Qiu, Dezhou; Zhu, Guoxing; Bi, Yongliang

    2013-11-01

    Graphene has attracted considerable attention for developing highly efficient photocatalysts due to its unique two dimensional structure and extraordinary physicochemical properties. In this paper, we demonstrate a facile two-phase self-assembly approach for the synthesis of graphene oxide (GO)-BiPO4 nanocomposites. The as-prepared samples were characterized by X-ray diffraction, transmission electron microscopy, Raman spectra, UV-vis diffuse reflectance spectra and Fourier transform infrared spectra. The significantly enhanced photocatalytic activity of the GO-BiPO4 nanocomposites in comparison with bare BiPO4 nanoparticles was revealed by the degradation of methylene blue under simulated sunlight irradiation, which can be attributed to the improved separation of electron-hole pairs. This facile method could be extended to design other graphene-based photocatalysts for environment and energy applications.

  11. Morphology and conductivity study of solid electrolyte Li{sub 3}PO{sub 4}

    Energy Technology Data Exchange (ETDEWEB)

    Prayogi, Lugas Dwi, E-mail: ldprayodi@gmail.com; Faisal, Muhamad [Engineering Physics, Sepuluh Nopember Institute of Technology ITS Campus, Sukolilo, Surabaya 6011 (Indonesia); Kartini, Evvy, E-mail: kartini@batan.go.id; Honggowiranto, Wagiyo; Supardi [Center for Science and Technology of Advanced Materials, National Nuclear Energy Agency Kawasan Puspiptek Serpong, Tangerang Selatan15314, Banten (Indonesia)

    2016-02-08

    The comparison between two different methods of synthesize of solid electrolyte Li{sub 3}PO{sub 4} as precursor material for developing lithium ion battery, has been performed. The first method is to synthesize Li{sub 3}PO{sub 4} prepared by wet chemical reaction from LiOH and H{sub 3}PO{sub 4} which provide facile, abundant available resource, low cost, and low toxicity. The second method is solid state reaction prepared by Li{sub 2}CO{sub 3} and NH{sub 4}H{sub 2}PO{sub 4.} In addition, the possible morphology identification of comparison between two different methods will also be discussed. The composition, morphology, and additional identification phase and another compound of Li{sub 3}PO{sub 4} powder products from two different reaction are characterized by SEM, EDS, and EIS. The Li{sub 3}PO{sub 4} powder produced from wet reaction and solid state reaction have an average diameter of 0.834 – 7.81 µm and 2.15 – 17.3 µm, respectively. The density of Li{sub 3}PO{sub 4} prepared by wet chemical reaction is 2.238 gr/cm{sup 3}, little bit lower than the sample prepared by solid state reaction which density is 2.3560 gr/cm{sup 3}. The EIS measurement result shows that the conductivity of Li{sub 3}PO{sub 4} is 1.7 x 10{sup −9} S.cm{sup −1} for wet chemical reaction and 1.8 x 10{sup −10} S.cm{sup −1} for solid state reaction. The conductivity of Li{sub 3}PO{sub 4} is not quite different between those two samples even though they were prepared by different method of synthesize.

  12. Structure and electrochemistry of NaFePO{sub 4} and Na{sub 2}FePO{sub 4}F cathode materials prepared via mechanochemical route

    Energy Technology Data Exchange (ETDEWEB)

    Kosova, N.V., E-mail: kosova@solid.nsc.ru [Institute of Solid State Chemistry and Mechanochemistry SB RAS, 18 Kutateladze, 630128 Novosibirsk (Russian Federation); Novosibirsk State University, 2 Pirogova, 630090 Novosibirsk (Russian Federation); Podugolnikov, V.R.; Devyatkina, E.T. [Institute of Solid State Chemistry and Mechanochemistry SB RAS, 18 Kutateladze, 630128 Novosibirsk (Russian Federation); Slobodyuk, A.B. [Institute of Chemistry FEB RAS, 159 Stoletiya Vladivostoka, 690022 Vladivostok (Russian Federation)

    2014-12-15

    Highlights: • Na{sub 2}FePO{sub 4}F is prepared by mechanochemically assisted solid state synthesis. • The crystal and local structure are studied by XRPD, FTIR, Mössbauer, and NMR. • Na{sup +}/Li{sup +} ion exchange is completed with the formation of NaLiFePO{sub 4}F. • The average D{sub Li} (10{sup −15} cm{sup 2} s{sup −1}) is determined from GITT measurements. - Abstract: Nanostructured NaFePO{sub 4} (space group Pmnb) and Na{sub 2}FePO{sub 4}F (space group Pbcn) were prepared by a quick and facile mechanochemically assisted solid state synthesis. Low-crystalline Na{sub 2}FePO{sub 4}F was formed as a result of direct mechanochemical reaction of NaFePO{sub 4} with NaF. It crystallizes upon subsequent heating to 600 °C and decomposes at higher temperatures. Crystal and local structure were analyzed by XRD using Rietveld refinement, FTIR, Mössbauer, and NMR spectroscopy. Electrochemical properties were studied by galvanostatic cycling in lithium cells and GITT. Although NaFePO{sub 4} showed some electrochemical activity, neither electrochemical nor chemical Na{sup +}/Li{sup +} exchange was observed by XRD. On contrary, electrochemical and chemical Na{sup +}/Li{sup +} ion exchange occurred in the case of Na{sub 2}FePO{sub 4}F and accomplished with the NaLiFePO{sub 4}F formation. Li{sup +} diffusion coefficient in NaLiFePO{sub 4}F at different delithiated/lithiated states was determined from GITT. Carbon-coated Na{sub 2}FePO{sub 4}F shows discharge capacity of 116 mA h g{sup −1} at 0.1 C rate within the 2.0–4.2 V voltage range and a good cyclability.

  13. SOLIDIFICATION MICROSTRUCTURE AND FRACTURE MORPHOLOGY OF SiCp/ZA27 COMPOSITE

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Solidification microstructure and mechanical property are explored.Furthermore,tensile fracture and microstructure are analyzed by using SEM and JXA-840A electron-probe.The results indicate that SiC particles in SiCp/ZA27 composite are mainly distributed on interfaces or between dendrites and surrounded by primary α phase.The dendrite of α phase is fined by SiCp.The tensile strength at room temperature decreases with the increasing of SiCp addition.The tensile strength at elevated temperature increases with the addition of SiCp.The fracture of SiCp/ZA27 composites is the mixture of tough and brittle fracture.The carck is prone to extend along the interface and the region of dispersed shrinkage.

  14. Développement intégral : les églises du Zaïre

    OpenAIRE

    Asch, Susan

    1987-01-01

    L'objet de cette communication est d'établir le contenu de ce qu'il convient d'appeler la "logique chrétienne" pour situer celle-ci par rapport à une "logique du développeur" et à une "logique paysanne" et enfin, pour définir les paramètres qui permettraient de différencier les "logiques chrétiennes" telles que sont les trois principales Eglises du Zaïre : "l'Eglise catholique" (romaine), l'"Eglise du Christ au Zaïre" (fédération de communautés protestantes) et l'"Eglise de Jesus-Christ sur T...

  15. Nezakonita trgovina z zaščitenimi živalskimi vrstami - primer tigra

    OpenAIRE

    Zorič, Goran

    2016-01-01

    Nezakonita trgovina z zaščitenimi živalskimi vrstami je problem sodobne družbe, ki se je sorazmerno hitro razvil in žal še vedno narašča. Zajema celoten proces od ulova in tihotapljenja do distribucije. Pojav ogroža predvsem živali pa tudi ljudi, ki so zadolženi, da jih varujejo, saj predstavljajo oviro krivolovcem in organiziranim kriminalnim mrežam. Te mreže se dokopljejo do dobička z lovljenjem, tihotapljenjem in prodajo zaščitenih živali in njihovih delov. S tem škodijo ekosistemu, prav t...

  16. Funzioni lessicali e aspettuali del preverbo za- nella Povest’ vremennych let

    Directory of Open Access Journals (Sweden)

    Luisa Ruvoletto

    2012-01-01

    Full Text Available This paper examines the forms of the za- prefixed verbs in the Old Russian text Povest’ vremennych let (11th-12th centuries. The study shows how this prefix, like other prefixes in Old Russian, has both lexical and aspectual functions, and that there is considerable interaction between the semantics of the prefix and the meaning of the unprefixed verb. Some groups of verbal forms can be found in which the prefix fulfils specific meanings. This analysis allows the detection of some “embryonic” forms of the lexical meanings and aspectual functions expressed in the modern Russian by the za- prefixed verbs in one of the oldest East Slavic texts. This is clearly of interest when delineating the semantic evolution of this prefix and its aspectual function in a diachronic perspective.

  17. 54. konferencija za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehniku ETRAN 2010

    Directory of Open Access Journals (Sweden)

    Nebojša N. Gaćeša

    2010-10-01

    Full Text Available U Donjem Milanovcu je od 7. do 11. juna 2010. godine održana 54. konferencija ETRAN 2010, pod pokroviteljstvom Ministarstva nauke Republike Srbije, u organizaciji Društva za ETRAN i Instituta IMTEL. ETRAN je stručno društvo za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehniku. To je dobrovoljna, vanstranačka, nevladina, neprofitna i društvena organizacija stručnjaka koji rade u oblasti elektrotehnike i drugim oblastima u kojima se koriste metode i tehnike iz područja delatnosti elektrotehnike. Predsednik predsedništva društva za ETRAN je prof. dr Srđan Stanković sa Elektrotehničkog fakulteta u Beogradu, potpredsednik je prof. dr Bratislav Milovanović sa Elektronskog fakulteta u Nišu, a sekretar je prof. dr Dušan Petrovački sa Fakulteta tehničkih nauka u Novom Sadu. Konferencija ETRAN je najstarija i najuglednija naučno-stručna konferencija u zemlji, sa preko pola veka tradicije i desetinama hiljada publikovanih radova. ETRAN ima uspostavljeno partnerstvo s najvećom i najjačom stručnom organizacijom elektroinženjera na svetu, udruženjem IEEE. Delatnost ETRAN-a odvija se u okviru sledećih stručnih sekcija: Elektronika, Telekomunikacije, Računarstvo, Automatika, Nuklearna tehnika, Akustika, Antene i prostiranje, Bio-medicinska tehnika, Veštačka inteligencija, Elektroenergetika, Električna kola, električni sistemi i obrada signala, Metrologija, Mikroelektronika i optoelektonika, Mikrotalasna i submilimetarska tehnika, Novi materijali i Robotika i fleksibilna automatizacija. Ove godine je za izlaganje na konferenciji, u okviru ovih 16 stručnih sekcija, prihvaćeno 315 radova.

  18. Nanošenje električnom iskrom za popravak alata

    OpenAIRE

    J. Tušek; Kosec, L.; Lešnjak, A.; T. Muhič

    2012-01-01

    Nanošenje električnom iskrom postupak je za navarivanje tvrdih metalnih slitina, npr. karbida i stelita, na površinu novih ili starih elemenata strojeva. U tom postupku visoka struja provodi se kroz oscilirajuću elektrodu i supstrat na vrlo kratko vrijeme. U članku opisan je postupak i određeni su debljina nanesenog sloja, kemijski sastav, stupanj miješanja i hrapavost sloja.

  19. The ZaP Flow Z-Pinch Project - Final Technical Report

    Energy Technology Data Exchange (ETDEWEB)

    Shumlak, Uri [Univ. of Washington, Seattle, WA (United States); Nelson, Brian A. [Univ. of Washington, Seattle, WA (United States)

    2013-12-31

    The ZaP Flow Z-Pinch Project is a project to extend the performance of the flow Z-pinch experiment at the University of Washington to investigate and isolate the relevant physics of the stabilizing effect of plasma flow. Experimental plasmas have exhibited an enhanced stability under certain operating parameters which generate a flow state (axial flows in Z-pinches and VH mode in tokamaks). Flow has also been suggested as the stabilizing mechanism in astrophysical jets.

  20. Trois poètes corses

    Directory of Open Access Journals (Sweden)

    2012-06-01

    Full Text Available On doit les traductions de ces poèmes (y compris des siens au poète Francescu-Micheli Durazzo qui œuvre avec obstination pour la poésie corse (A filetta, onze poètes corses contemporains, aux éditions Phi ; et le numéro spécial « Poètes corses » de la revue basque Zurgai, Bilbao, avec une très éclairante préface du même. Je me suis permis une ou deux très minimes interventions dues à ma sensibilité personnelle ; elles traduisent, sous une forme moins parfaite que la sienne, mon souci de col...

  1. Redetermination of AgPO(3).

    Science.gov (United States)

    Terebilenko, Katherina V; Zatovsky, Igor V; Ogorodnyk, Ivan V; Baumer, Vyacheslav N; Slobodyanik, Nikolay S

    2011-02-09

    Single crystals of silver(I) polyphosphate(V), AgPO(3), were prepared via a phospho-ric acid melt method using a solution of Ag(3)PO(4) in H(3)PO(4). In comparison with the previous study based on single-crystal Weissenberg photographs [Jost (1961 ▶). Acta Cryst. 14, 779-784], the results were mainly confirmed, but with much higher precision and with all displacement parameters refined anisotropically. The structure is built up from two types of distorted edge- and corner-sharing [AgO(5)] polyhedra, giving rise to multidirectional ribbons, and from two types of PO(4) tetra-hedra linked into meandering chains (PO(3))(n) spreading parallel to the b axis with a repeat unit of four tetra-hedra. The calculated bond-valence sum value of one of the two Ag(I) ions indicates a significant strain of the structure.

  2. Redetermination of AgPO3

    Science.gov (United States)

    Terebilenko, Katherina V.; Zatovsky, Igor V.; Ogorodnyk, Ivan V.; Baumer, Vyacheslav N.; Slobodyanik, Nikolay S.

    2011-01-01

    Single crystals of silver(I) polyphosphate(V), AgPO3, were prepared via a phospho­ric acid melt method using a solution of Ag3PO4 in H3PO4. In comparison with the previous study based on single-crystal Weissenberg photographs [Jost (1961 ▶). Acta Cryst. 14, 779–784], the results were mainly confirmed, but with much higher precision and with all displacement parameters refined anisotropically. The structure is built up from two types of distorted edge- and corner-sharing [AgO5] polyhedra, giving rise to multidirectional ribbons, and from two types of PO4 tetra­hedra linked into meandering chains (PO3)n spreading parallel to the b axis with a repeat unit of four tetra­hedra. The calculated bond-valence sum value of one of the two AgI ions indicates a significant strain of the structure. PMID:21522230

  3. Introduccion a un texto de Francisco J. Sáenz de Oíza = Introduction to a text of Francisco J. Sáenz de Oíza

    Directory of Open Access Journals (Sweden)

    Vicente Sáenz Guerra

    2013-10-01

    Full Text Available ResumenIntroducción breve a un texto en el que Oíza reflexiona sobre el proceso creativo de Torres Blancas, desde su propia experiencia como autor. Su forma de trabajo como búsqueda ordenada y paciente mediante “aproximaciones sucesivas”, con referencias claras y dispares que siempre acompañan a todo proceso de creación. Por otro lado, se aborda la dificultad de “lectura” de una obra arquitectónica que se origina en su “escritura”.Palabras claveproceso, génesis, creación, lectura, escrituraAbstractA Brief introduction to Oíza´s text that reflects on the creative process of Torres Blancas, from his own experience as author. His way of working as orderly and patient search in "successive approximations", with clear and disparate references that always is joined to any process of creation. Also, deals with the difficulty of "reading" of a work of architecture that originates in "writing".Key wordsprocess, genesis, creation, reading, writing 

  4. Analýza realitního trhu s hostinskými zařízeními v Hradci Králové

    OpenAIRE

    Drábková, Eva

    2017-01-01

    Diplomová práce řeší analýzu realitního trhu s hostinskými zařízeními ve městě Hradec Králové. Cílem práce je stanovit faktory ovlivňující tržní cenu nebo tržní nájemné tohoto segmentu realitního trhu. V teoretické části práce jsou vymezeny základní pojmy související s tématem diplomové práce. Praktická část diplomové práce se sestává ze dvou částí. V první části bylo provedeno dotazníkové šetření, které probíhalo mezi provozovateli hostinských zařízení. Druhá část porovnává a vyhodnocuje dat...

  5. [The life and work of Zaíra Cintra Vidal].

    Science.gov (United States)

    Lopes, G T; Caldas, N P; Lima, T C; Martingil, I C

    2001-01-01

    This is a social-historical study that aims at describing the trajectory of Zaíra Cintra Vidal, her participation in the Nursing School Rachel Haddock Lobo and in the Brazilian Association of Nursing (ABEn). The study is based on the concepts of symbolic power, habitus and symbolic struggle of Pierre Bourdieu. The primary sources are documents which were collected in the Documentation Center of Escola de Enfermagem Ana Neri (EEAN--Ana Neri School of Nursing) in the Federeal University of Rio de Janeiro (UFRJ) and at the Memory Center of the Faculty of Nursing (FENF) in the State University of Rio de Janeiro (UERJ). The data was collected between August 2000 and April 2001 by means of document analysis script. The outcomes showed that Zaíra Cintra Vidal was born on 5 May 1903; graduated from the Nursing School of the National Public Health Department in 1926; studied and post-graduated in the United States from 1927 until 1929 and returned to Brazil in 1943. Zaíra Cintra Vidal was the founder of the Nursing School Rachel Haddock Lobo and was its first director for nine years. She also and took part in ABEn's Direction Board and in the Revista Anais de Enfermagem (Nursing Magazine).

  6. Deactivation and Regeneration of Ni/ZA Catalyst in Hydrocracking of Polypropylene

    Directory of Open Access Journals (Sweden)

    Imam Khabib

    2014-07-01

    Full Text Available The phenomena of catalyst deactivation and the effects of regeneration method on the characteristics and activity of Ni/ZA catalyst after being used in a continuous cracking reaction of polypropylene have been studied. Ni/ZA catalyst was prepared using sonochemical method with total metal intake of 4%. Characteristics and activity of fresh, spent, and regenerated catalyst were evaluated to get a better understanding about the catalyst deactivation. Characteristics which have been observed include catalyst acidity, porosity, crystallinity, and surface morphology. Catalytic activity test of Ni/ZA catalyst on polypropylene cracking reaction at temperature of 500 °C with H2 flow rate of 20 mL/min and catalyst:feed ratio of 1:2 (w/w showed the decrease of some catalyst characteristics such as specific surface area, total pore volume, and acidity due to coke fouling over a five-times continuous experiment. Regeneration of catalyst with oxidation-reduction method has been able to increase the activity and acidity of catalyst up to 7.47% and 38.54%, respectively, compared to those of spent catalyst, while the catalyst surface area and total pore volume decreased up to 32.83% and 26.92%, respectively.

  7. Synthesis and electrochemical performance of hierarchical nanocomposite of carbon coated LiCoPO{sub 4} crosslinked by graphene

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Houyong [School of Chemistry and Materials Science, Harbin Engineering University, Harbin 150080 (China); Chen, Meng, E-mail: chenmeng@hrbeu.edu.cn [School of Chemistry and Materials Science, Harbin Engineering University, Harbin 150080 (China); Du, Chunyu, E-mail: cydu@hit.edu.cn [School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001 (China); Cui, Yingzhi; Zuo, Pengjian; Cheng, Xinqun; Yin, Geping [School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001 (China)

    2016-03-01

    We report the design and synthesis of a novel hierarchical LiCoPO{sub 4}@C/G cathode material, consisting of carbon coated LiCoPO{sub 4} nanoparticles crosslinked by wrinkled graphene, for high-energy-density lithium ion batteries. This material is facilely prepared by a solid-state milling process followed by heat annealing. Its morphology and structure are characterized by scanning electron microscopy, transmission electron microscopy, Raman spectroscopy and X-ray diffraction. It is revealed that the LiCoPO{sub 4} nanoparticles are coated by an amorphous carbon layer with ∼3 nm thickness and further crosslinked by wrinkled graphene. The LiCoPO{sub 4}@C/G material delivers a high discharge capacity of 146.1 mAh g{sup −1} at 0.1 C rate and 93.0 mAh g{sup −1} at 2 C rate. The enhanced electrochemical properties are attributed to the nanosized LiCoPO{sub 4} particles and the high electronic conductivity resulted from the synergistic carbon coating and graphene crosslinking. Our work provides a facile approach to prepare high performance LiCoPO{sub 4} cathode materials for lithium ion batteries. - Highlights: • Hierarchical LiCoPO{sub 4}@C/G nanocomposite is prepared by a facile solid state method. • The LiCoPO{sub 4}@C/G material shows excellent discharge capacity and rate capability. • Synergy of graphene and carbon coating enhances the electrochemical properties. • LiCoPO{sub 4}@C/G is a promising cathode for high-energy-density Li-ion batteries.

  8. Quality of drug prescription in primary health care facilities in ...

    African Journals Online (AJOL)

    DR Marwa

    1Ilemela District Hospital, P.O. Box 735, Mwanza, Tanzania. 2Catholic ... prolonged hospital stay and consequently an increased cost of disease management in patients ... WHO/INRUD primary health facility prescribing indicators that monitor ...

  9. Dopune i promjene ISKRA hrvatskih nacionalnih smjernica za liječenje i profilaksu infekcija mokraćnog sustava odraslih

    OpenAIRE

    Škerk, Višnja; Tambić Andrašević, Arjana; Sušić, Edita

    2014-01-01

    Kod odabira lijeka za infekcije mokraćnog sustava (IMS) gledamo njegov spektar djelovanja, in vitro djelotvornost, farmakokinetiku, farmakodinamiku, nuspojave, interakcije s drugim lijekovima, kontraindikacije za primjenu, mjesto liječenja, cijenu, jednostavnost primjene, individualne osobine pojedinačnog bolesnika i pojedinačne infekcije, poziciju na listi HZZO. Kod određivanja empirijske antimikrobne terapije za IMS moramo imati uvid u lokalna istraživanja uzročnika pojedinih kliničkih sind...

  10. Provozní analýza gastronomického zařízení

    OpenAIRE

    Čejpová, Ilona

    2009-01-01

    The goal of this bachelor thesis is to analyze service of the catering facility and to evaluate its position compared with competitors in the market. The thesis is divided into four thematic parts. The first part is theoretical and characterizes impotrance, types, categories of restaurants and its network in the country. Great deal of attention is also focused on the theory of marketing. The second part is a historical look at Prague's coffee business in the first half of the 20th century. Th...

  11. Savremeno naoružanje i vojna oprema za broj 1-2008 / Modern weapons and military equipment for issue 1-2008

    Directory of Open Access Journals (Sweden)

    Mirko Krbavac

    2008-01-01

    Full Text Available Nove varijante oklopnih vozila Ukrajine; Modularno višenamensko vozilo NIMR II 4×4; Izviđačko vozilo Ferret – Stallion; Novo lako taktičko vozilo JLTV; Autonomno vozilo Avantguard; Nova srednjezaštićena patrolna vozila; Novi oklop za laka vozila; Modularni komplet MAPIK za oklopnu zaštitu vozila; Višenamenski radar EL/M-2084; Višestruki lansirni raketni sistem LYNX; Litvanski raketni sistem za male visine

  12. Ultraviolet luminescence of ScPO4, AlPO4 and GaPO4 crystals.

    Science.gov (United States)

    Trukhin, Anatoly N; Shmits, Krishjanis; Jansons, Janis L; Boatner, Lynn A

    2013-09-25

    The luminescence of self-trapped excitons (STEs) was previously observed and described for the case of tetragonal-symmetry ScPO4 single crystals. The subject band in this material is situated in the UV spectral range of ∼210 nm or ∼5.8 eV. In the present work, we are both expanding this earlier luminescence study and seeking to identify similar luminescence phenomena in other orthophosphate crystals, i.e., AlPO4 and GaPO4. These efforts have proven to be successful--in spite of the structural differences between these materials and ScPO4. Specifically we have found that for AlPO4 and GaPO4, in addition to an α-quartz-like STE, there is a UV luminescence band that is similar in position and decay properties to that of ScPO4 crystals. Potentially this represents an STE in AlPO4 and GaPO4 crystals that is analogous to the STE of ScPO4 and other orthophosphates. The decay kinetics of the UV luminescence of ScPO4 was studied over a wide temperature range from 8 to 300 K, and they exhibited some unusual decay characteristics when subjected to pulses from an F2 excimer laser (157 nm). These features could be ascribed to a triplet state of the STE that is split in a zero magnetic field. A fast decay of the STE was detected as well, and therefore, we conclude that, in addition to the slow luminescence corresponding to a transition from the triplet state, there are singlet-singlet transitions of the STE. Time-resolved spectra of the slow and fast decay exhibit a small shift (∼0.15 eV) indicating that the singlet-triplet splitting is small and the corresponding wavefunction of the STE is widely distributed over the atoms of the ScPO4 crystal where the STE is created.

  13. Hydrothermal synthesis and luminescence properties of Eu3+and Sm3+codoped BiPO4

    Institute of Scientific and Technical Information of China (English)

    钟剑明; 赵韦人; 蓝立财; 王建青

    2014-01-01

    Eu3+/Sm3+codoped BiPO4 phosphors were synthesized via a facile hydrothermal method with surfactant-free environment. The X-ray diffraction analysis demonstrated that the samples possessed the standard BiPO4 monoclinic structure. Scanning electron microscopy images showed that all samples composed of well-dispersed, micrometer-sized crystals with shuttle-like shape. Energy transfer from Sm3+to Eu3+was confirmed by the luminescence spectra and the decay processes of Sm3+ 4G5/2→6H5/2 emission. Or-ange-red luminescence could be obtained in Eu3+/Sm3+codoped BiPO4 phosphors. The average lifetime of Sm3+ 4G5/2→6H5/2 emis-sion decreased from 2.70 ms in BiPO4:0.03Sm3+ to 2.37 ms in BiPO4:0.03Sm3+,0.05Eu3+. The strong and wide absorption band around 395 nm, originating from both 7F0→5L6 transition of Eu3+and 6H5/2→4K11/2 transition of Sm3+, endowed BiPO4:Eu3+,Sm3+phosphors with the potential application in the fields of near UV-excited white-light-emitting diodes.

  14. Design of LaPO4:Nd3+ materials by using ionic liquids

    Science.gov (United States)

    Cybinska, J.; Guzik, M.; Lorbeer, C.; Zych, E.; Guyot, Y.; Boulon, G.; Mudring, A.-V.

    2017-01-01

    Monoclinic monazite-type Nd3+-doped lanthanum orthophosphate (LaPO4:Nd3+) nanoparticles were prepared by microwave treatment of simple lanthanide precursors such as Nd(OAc)3•xH2O, OAc = acetate) with task-specific dihydrogen phosphate ionic liquids (ILs) 1-butyl-1-methylpyrrolidinium dihydrogenphosphate- BmPyrH2PO4 (IL1) and 2-hydroxyethyl-N,N,N-trimethylammonium, [choline][H2PO4] (IL2) as the reaction medium, reactant and in-situ nanoparticle stabilizer. This synthesis route possesses many advantages as it is a fast and facile preparation method of the desired phosphate nanomaterials without the necessity for post-reaction heat treatment to obtain the anhydrous high temperature monazite phosphate phase. The nano-sized phosphors Nd3+:LaPO4 were carefully analyzed by the powder X-ray diffraction, electron microscopy and spectroscopic techniques taking advantage of the Nd3+ spectroscopic probe to analyze in detail the structural properties. Applied high resolution low temperature absorption and emission techniques allowed to complete the structural information unavailable from the XRD powder patterns. A clear influence of the used task-specific dihydrogen phosphate ILs on the structure, morphology, luminescence intensity and lifetimes of the obtained Nd3+:LaPO4 was found. It is worth noting that the Nd3+ luminescence in LaPO4 has never been reported up to now.

  15. Controlled synthesis and photocatalytic properties of rhombic dodecahedral Ag3PO4 with high surface energy

    Science.gov (United States)

    Xie, Yao; Huang, Zhaohui; Zhang, Zhijie; Zhang, Xiaoguang; Wen, Ruilong; Liu, Yangai; Fang, Minghao; Wu, Xiaowen

    2016-12-01

    In this study, a series of Ag3PO4 photocatalysts with different contents of rhombic dodecahedral particles were prepared in one pot by a facile, novel hydrothermal method using ethylene glycol (EG), which served as both a morphology modifier and reducing agent. The effects of EG content on the morphologies of Ag3PO4 photocatalysts were discussed. The photocatalytic activity of the Ag3PO4 photocatalysts was evaluated by the degradation of methylene blue trihydrate under visible-light irradiation. With the use of 0.8% EG in the reaction solvent, the sample exhibited excellent photocatalytic activity, attributed to the high amount of rhombic dodecahedral Ag3PO4 particles with a high exposure of the {110} facets and high surface energy. The surface energy of the {110} facets was 1.31 J/m2, greater than that of the {100} facet (1.12 J/m2). However, with 1% EG in the reaction solvent, although the Ag3PO4 photocatalysts were composed of a majority of rhombic dodecahedral Ag3PO4 particles, tiny Ag particles formed from Ag+ under the action of EG attached on the surface of the sample decreased the absorption of visible light, resulting in low photocatalytic activity.

  16. Testiranje balističke otpornosti zaštitnih prsluka / Ballistic resistance of body armour testing

    Directory of Open Access Journals (Sweden)

    Đuro Jovanić

    2006-04-01

    Full Text Available U radu je predstavljena osnova standarda NIJ 0101.04 (Nacionalni Institut Pravde, namenjenog za utvrđivanje minimuma tehničkih zahteva i propisivanje metoda ispitivanja balističke otpornosti zaštitnih prsluka, koji treba da zaštite gornji deo tela od dejstva streljačkog oružja. Standard jeste revizija standarda NIJ 0101.03 iz aprila 1987. i preciznije definiše zahteve u pogledu obeležavanja, kriterijume za prijem i postupke merenja otiska u materijalu iza prsluka. Područje ovog standarda odnosi se samo na balističku otpornost, ali ne i na pretnje od noža i predmeta sa oštrim vrhom. Takođe, ne odnosi se na zaštitne prsluke koji sadrže dopunske elemente ili varijacije u konstrukciji balističkih panela za malu površinu torza, radi povećanja osnovnog nivoa zaštite na ograničenim površinama (bilo balističke ili povrede od tupog vrha. / This work is a basic presentation of NIJ 0101.04 (National Institute of Justice standard, -whose purpose is to establish minimum performance requirements and methods of testing ballistic resistance of body armor intended to protect the torso against gunfire. This standard is a revision of NIJ Standard 0101.03 dated April 1987 and it clarifies the labeling requirements, acceptance criteria, and backface signature measurement procedure. The scope of this standard is limited only to ballistic resistance; and it does not include threats from knives and sharply pointed instruments. In addition, the standard does not include armor that incorporates inserts, or variations in construction of the ballistic panel over small areas of the torso, used for increasing the basic level of protection of the armor (whether ballistic or blunt trauma on localized areas.

  17. Superconducting Coil of Po Dipole

    CERN Multimedia

    1983-01-01

    The Po superconducting dipole was built as a prototype beam transport magnet for the SPS extracted proton beam P0. Its main features were: coil aperture 72 mm, length 5 m, room-temperature yoke, NbTi cable conductor impregnated with solder, nominal field 4.2 T at 4.7 K (87% of critical field). It reached its nominal field without any quench.After this successful test up to its nominal field of 4.2 T, the power was not raised to reach a quench. The magnet was not installed in a beam and had no other further use. Nevertheless its construction provided knowledges and experience which became useful in the design and construction of the LHC magnets. The photo shows a detail of the inner layer winding before superposing the outer layer to form the complete coil of a pole. Worth noticing is the interleaved glass-epoxy sheet (white) with grooved channels for the flow of cooling helium. See also 8211532X.

  18. Preparation and photocatalytic degradation performance of Ag{sub 3}PO{sub 4} with a two-step approach

    Energy Technology Data Exchange (ETDEWEB)

    Li, Jiwen; Ji, Xiaojing; Li, Xian; Hu, Xianghua; Sun, Yanfang; Ma, Jingjun, E-mail: mjjwjpmartin@sina.com; Qiao, Gaowei

    2016-05-30

    Highlights: • Ag{sub 3}PO{sub 4} photocatalysts were synthesized via one-step and two-step ion-exchange reaction. • Photocatalytic properties of Ag{sub 3}PO{sub 4} photocatalysts was investigated, the result indicated the Ag{sub 3}PO{sub 4} (2) was higher than that of Ag{sub 3}PO{sub 4} (1) under the same experimental condition. • Ag{sub 3}PO{sub 4} (2) particles were larger than Ag{sub 3}PO{sub 4} (1) particles and many polygonal-shaped surfaces could be clearly observed in the Ag{sub 3}PO{sub 4} (2) particles. - Abstract: Ag{sub 3}PO{sub 4} photocatalysts were prepared via two and one-step through a facile ion-exchange route. The photocatalysts were then characterized through powder X-ray diffraction, scanning electron microscopy and UV–vis diffuse reflectance spectroscopy. The photocatalytic activity of the samples was evaluated on the basis of the photocatalytic degradation of methyl orange (MO) and methylene blue (MB) under solar irradiation. The MO degradation rate of the Photocatalyst synthesized by the two-step ion-exchange route was 89.18% in 60 min. This value was four times that of the Photocatalyst synthesized by the one-step approach.The MB degradation rate was 97% in 40 min. After six cycling runs were completed, the MO degradation rate was 73%.

  19. LiFePO4/C nanocomposites for lithium-ion batteries

    Science.gov (United States)

    Eftekhari, Ali

    2017-03-01

    LiFePO4, as the most famous member of the family of olivine-type lithium transition metal phosphates, is one of the promising candidates for the cathodes of lithium-ion batteries. However, its battery performance is limited by its low electrical conductivity and slow Li solid-state diffusion. Various methods have been attempted to improve the battery performance of lithium iron phosphate. Among them, compositing the LiFePO4 with carbon nanomaterials seems to be the most promising, as it is facile and efficient. Carbon nanomaterials usually serve as a conductive agent to improve the electrical conductivity while increasing the material porosity in which the solid-state diffusion distances are significantly shortened. Owing to the popularity of various carbonaceous nanomaterials, there is no straightforward line of research for comparing the LiFePO4/C nanocomposites. This review aims to provide a general perspective based on the research achievements reported in the literature. While surveying the research findings reported in the literature, controversial issues are also discussed. The possible contribution of pseudocapacitance as a result of functionalized carbon or LiFePO4 lattice defects is described, since from a practical perspective, a LiFePO4/C electrode can be considered as a supercapacitor at high C rates (with a specific capacitance as large as 200 F g-1). The Li diffusion in LiFePO4 has not been well understood yet; while the Li diffusion within the LiFePO4 lattice seems to be quite fast, the peculiar interfacial electrochemistry of LiFePO4 slows down the diffusion within the entire electrode by a few orders of magnitude.

  20. Softver za proračun uzdužne statičke stabilnosti i upravljivosti aviona za osnovnu obuku pilota / Software for calculation of an axial static stability and management of airplanes for basic pilot training

    Directory of Open Access Journals (Sweden)

    Dalibor Petrović

    2006-07-01

    Full Text Available U ovom radu opisan je softver za proračun uzdužne statičke stabilnosti i upravljivosti aviona za osnovnu obuku pilota. Softver je urađen sa numerom da konstruktorima omogući brzo i lako dobijanje potrebnih rezultata vezanih za stabilnost i upravljivost kod preliminarnih proračuna vezanih za ovu vrstu aviona. Program je urađen na osnovu analize velikog broja aviona iz ove klase, a njegova tačnost je testirana na avionu "Lasta". Rezultati koji su dobijeni ovim softverom bili su više od zadovoljavajućih, s obzirom na to da se radi o programu koji bi se koristio za preliminarni proračun. / This document introduced software for calculation of an axial static stability and management of airplanes for basic pilot training. The purpose of this software is to provide a quicker and an easier way of getting results regarding preliminary calculation of stability and management for these types of airplanes. The program is based upon analysis of data gathered from a large number of tested airplanes of this class. The accuracy of the program has been tested on the airplane type 'Lasta' and results were more than satisfying, especially regarding the fact that the program is meant to be used for preliminary calculation.

  1. Standard NIJ 0115.00 za testiranje otpornosti zaštitnih prsluka na ubode nožem i predmetima sa oštrim vrhom / NIJ 0115.00 standard for testing stab resistance of body armor

    Directory of Open Access Journals (Sweden)

    Đuro Jovanić

    2008-04-01

    Full Text Available Standard NIJ 0115.00 (prema Nacionalnom institutu pravde SAD, namenjen je za utvrđivanje minimuma tehničkih zahteva i metoda ispitivanja otpornosti zaštitnih prsluka, koji treba da zaštite gornji deo tela od uboda nožem i predmetima sa oštrim vrhom. Područje primene ovog standarda ograničeno je samo na pretnje ubodima, a ne na balističke pretnje, poput onih koje su obuhvaćene standardom NIJ 0101.04 za testiranje balističke otpornosti zaštitnih prsluka. / In this work made presentation of NIJ 0115.04. (National Institute of Justice standard, witch purpose is to establish minimum performance requirements and methods of testing for the stab resistance of body armor intended to protect the torso against slash and stab threats. The scope of the standard is limited to stab resistance only; the standard does not address ballistic threats, as those are covered by NIJ Standard 0101.04. Ballistic Resistance of Personal Body Armor.

  2. Levels and transfer of {sup 210}Po and {sup 210}Pb in Nordic terrestrial ecosystems

    Energy Technology Data Exchange (ETDEWEB)

    Brown, J.E., E-mail: justin.brown@nrpa.n [Norwegian Radiation Protection Authority, PO Box 55, N-1332, Osteras (Norway); Gjelsvik, R. [Norwegian Radiation Protection Authority, PO Box 55, N-1332, Osteras (Norway); Roos, P. [RISO-DTU P.O. Box 49 DK-4000 Roskilde (Denmark); Kalas, J.A. [Norwegian Institute for Nature Research (NINA), Tungasletta 2, 7485 Trondheim (Norway); Outola, I. [STUK, Laippatie 4/P.O. BOX 14, 00881 Helsinki (Finland); Holm, E. [Norwegian Radiation Protection Authority, PO Box 55, N-1332, Osteras (Norway)

    2011-05-15

    Recent developments regarding environmental impact assessment methodologies for radioactivity have precipitated the need for information on levels of naturally occurring radionuclides within and transfer to wild flora and fauna. The objectives of this study were therefore to determine activity concentrations of the main dose forming radionuclides {sup 210}Po and {sup 210}Pb in biota from terrestrial ecosystems thus providing insight into the behaviour of these radioisotopes. Samples of soil, plants and animals were collected at Dovrefjell, Central Norway and Olkiluoto, Finland. Soil profiles from Dovrefjell exhibited an approximately exponential fall in {sup 210}Pb activity concentrations from elevated levels in humus/surface soils to 'supported' levels at depth. Activity concentrations of {sup 210}Po in fauna (invertebrates, mammals, birds) ranged between 2 and 123 Bq kg{sup -1} d.w. and in plants and lichens between 20 and 138 Bq kg{sup -1} d.w. The results showed that soil humus is an important reservoir for {sup 210}Po and {sup 210}Pb and that fauna in close contact with this media may also exhibit elevated levels of {sup 210}Po. Concentration ratios appear to have limited applicability with regards to prediction of activity concentrations of {sup 210}Po in invertebrates and vertebrates. Biokinetic models may provide a tool to explore in a more mechanistic way the behaviour of {sup 210}Po in this system.

  3. El lenguaje poético

    Directory of Open Access Journals (Sweden)

    Alfonso Hanssen

    1966-03-01

    Full Text Available Me parece absurdo pretender hallar la intención poética en cualesquiera rastros de la historia, por el solo hecho de que en ellos se afirma cierta reconditez que los hace misteriosos.

  4. Lifetime measurement in {sup 195}Po

    Energy Technology Data Exchange (ETDEWEB)

    Grahn, T.; Page, R.D. [University of Liverpool, Department of Physics, Oliver Lodge Laboratory, Liverpool (United Kingdom); Dewald, A.; Jolie, J.; Melon, B.; Pissulla, T. [Universitaet zu Koeln, Institut fuer Kernphysik, Koeln (Germany); Greenlees, P.T.; Jakobsson, U.; Jones, P.; Julin, R.; Juutinen, S.; Ketelhut, S.; Leino, M.; Nyman, M.; Peura, P.; Rahkila, P.; Saren, J.; Scholey, C.; Sorri, J.; Uusitalo, J. [University of Jyvaeskylae, Department of Physics, P.O. Box 35, Jyvaeskylae (Finland); Kroell, T.; Kruecken, R.; Maierbeck, P. [TU Muenchen, Physik-Department E12, Garching (Germany)

    2009-03-15

    The lifetime of the 17/2{sup +} yrast state in {sup 195}Po has been measured using the recoil distance Doppler-shift technique to be {tau}=43(11) ps. The lifetime was extracted from the singles {gamma}-ray spectra obtained by using the recoil-decay tagging method. The present work provides more information of the coupling schemes, shapes and configuration mixing in neutron-deficient odd-mass Po nuclei. (orig.)

  5. Investigation Of Water Assisted Phase Transformation Process From AlPO4-5 to AlPO4-tridymite

    Energy Technology Data Exchange (ETDEWEB)

    Xu, Suochang; Zhao, Zhenchao; Hu, Mary Y.; Han, Xiuwen; Hu, Jian Z.; Bao, Xinhe

    2016-03-15

    Water assisted phase transformation process from crystalized AlPO4-5 to AlPO4-tridymite was studied by the combination of X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and in situ multinuclear MAS NMR. It is found that water first activates the residue amorphous aluminophosphate in crystalized AlPO4-5 sample through hydrolysis and condensation reactions. Then the activated aluminophosphate species reassemble into AlPO4-tridymite crystalline. Meanwhile, AlPO4-5 transforms into orthorhombic phase during heating process. With further crystallization of AlPO4-tridymite, the amorphous phase is gradually consumed, and mass transportation between AlPO4-5 and AlPO4-tridymite is established through gradually amorphization of AlPO4-5. Finally, most of the AlPO4-5 transforms into the thermodynamically stable dense phase AlPO4-tridymite.

  6. Consumer satisfaction with the services of prosthetics and orthotics facilities.

    Science.gov (United States)

    Bosmans, Joline; Geertzen, Jan; Dijkstra, Pieter U

    2009-03-01

    Consumer satisfaction with the services provided in a prosthetics and orthotics (P&O) facility has seldom been studied. The aim of this study was to analyze consumer satisfaction regarding the services provided by 15 P&O facilities in The Netherlands. Consumers (n = 1,364) of these P&O facilities who were fitted with a prosthesis, orthopaedic shoes, an orthosis, or another device, were asked to rate the overall services provided and whether they were satisfied with the device provided and its delivery time. Additionally, they filled in a modified SERVQUAL questionnaire (see Appendix). Consumers gave the service provided by P&O facilities a mean overall rating of 8.1. The highest ratings were given by consumers fitted with a prosthesis (mean overall rating of services: 8.4). In total, 78% of the consumers were satisfied with the device provided and 93% with the delivery time. The results of our study showed that, on the SERVQUAL, 50% of the statements fulfilled the criteria for a satisfactory quality of the services. The overall consumer rating of the service provided by P&O facilities is high and depends on the device provided. The outcomes on the SERVQUAL were moderate. In future, it is important to study consumer satisfaction more extensively in order to improve the quality of P&O services in daily practice. Additionally, specific questionnaires need to be developed to measure all aspects of prosthetic and orthotic care, with the aim to improve the services.

  7. Ra-228, Ra-226, Pb-210 and Po-210 variations in the water columns and the surface water plankton in the Luzon Strait and northern South China Sea

    Science.gov (United States)

    Chung, Y.; Lin, C.; Wang, P.; Su, Y.

    2006-12-01

    Profiles of Ra-228, Ra-226, Pb-210 and Po-210 were measured in the Luzon Strait (LS) and northern South China Sea (SCS) areas to delineate the exchanges between the western Philippine Sea (WPS) and the northern SCS waters across the LS. Plankton samples were also collected for Po-210 and Pb-210 measurements to assess the balance between the Po-210 excess over Pb-210 in the plankton and the deficit in the surface water. Profiles of Ra-228 and Ra-226 seem to indicate the out flow of the SCS water below the salinity minimum and above around 1500m depth, below which the WPS water flows into the SCS through the LS above a sill depth of about 2600m. This is consistent with previous studies conducted in the area. All the Pb-210 profiles show a strong subsurface maximum with higher activity in the LS area. This maximum is in large excess over its parent, Ra-226 due to atmospheric input. Po-210 profiles generally follow the associated Pb-210 profiles but with lower activities, showing Po-210 deficiency. Po-210 is strongly enriched over Pb-210 in the plankton samples with an activity ratio generally over 10 and up to 40. Both nuclides in the plankton are higher in the LS area, a trend similar to the surface water. The Po-210 excess in the plankton can account for at least 70 percent of the surface water deficit, part of which may be removed by sinking particles.

  8. Tehnološka priprava za izdelavo gredi električne motorne žage.

    OpenAIRE

    Thaler, Janez

    2013-01-01

    V diplomskem delu je predstavljen postopek izdelave gredi motorne žage. Opisani so vsi proizvodni postopki s poudarkom na uporabi sodobnih CNC-tehnologij. Podrobno so predstavljene napredne numerično krmiljene stružnice in tehnološka priprava za struženje gredi. Na podlagi poznanih obdelovalnih procesov je v zaključku predlagana izboljšava proizvodnega procesa s ciljem izboljšati zanesljivost procesa in znižati stroške izdelave.

  9. Nanoplazmonski metamaterijali za novu generaciju hemijskih, biohemijskih i bioloških senzora

    OpenAIRE

    Tanasković, Dragan M.

    2016-01-01

    Potreba za osetljivim senzorima hemijskih, biohemijskih i bioloških agensa u današnjem svetu sve je veća, od industrije, preko biomedicine, do očuvanja okoline i protivterorističke odbrane. MeĎu najosetljivijim i najsvestranijim napravama ove vrste su elektromagnetni senzori, naročito oni koji svoju funkciju zasnivaju napovršinskimplazmonima-polaritonima (surface plasmons polaritons, SPP) na meĎupovršini metal-dielektrik. Sa dolaskom nanotehnologija otvorila se mogućnost da se proizvedu metal...

  10. SISTEM ZA ZAJEMANJE IN VIZUALIZACIJO GIBANJA Z UPORABO PLASTIČNIH OPTIČNIH VLAKEN

    OpenAIRE

    2010-01-01

    V diplomski nalogi se bomo posvetili plastičnim optičnim vlaknom s katerimi bomo merili vzdolžne raztezke ter tako posredno zaznavali ter merili gibanje človeških delov telesa. Opisana bo izdelava in delovanje elektronskega vezja, ki temelji na mikrokrmilniku PIC18F4550. Za elektronski del smo poiskali najboljšo rešitev glede občutljivosti, izdelali smo senzorski merilni del sistema ter podrobno opisali delovanje vseh sklopov. Kot zaključek smo v virtualnem okolju izdelali 3D model človeka, k...

  11. RAZVOJNI POMEN PLANIRANJA NASLEDSTVA V LASTNIŠTVU IN VODENJU ZA DRUŽINSKO PODJETJE

    OpenAIRE

    Weindorfer, Petra

    2010-01-01

    Točka preloma, ko se začne podjetje dokončno opredeljevati kot družinsko podjetje, je trenutek umika podjetnika, ki je podjetje ustanovil, in prepuščanje funkcij v podjetju potomcem. Podjetja bodo v današnjih negotovih razmerah lažje preživela boj s konkurenco in se razvijala, če bodo planirala proces nasledstva, saj je planiranje procesa nasledstva zagotovo področje, katero lahko vpliva na nadaljnji razvoj in uspeh podjetja. Planiranje nasledstva bi moralo potekati v skladu z nasledstven...

  12. VLOGA DRUŽBENIH MEDIJEV KOT ORODJE ZA ODNOSE Z JAVNOSTMI

    OpenAIRE

    Karpač, Jure

    2011-01-01

    Družbeni mediji spreminjajo način, kako ljudje med seboj komuniciramo. V diplomski nalogi obravnavamo družbene medije in vpliv, ki ga imajo na množično komuniciranje in delovanje stroke odnosov z javnostmi. Zanima nas, ali strokovnjaki za odnose z javnostmi menijo, da družbeni mediji spreminjajo način delovanja odnosov z javnostmi in v kolikšni meri jih v svojem delovanju že uporabljajo. Skozi teoretično analizo spoznamo, kaj družbeni mediji sploh so in kakšen vpliv imajo na že obstoječe komu...

  13. MOBILNA APLIKACIJA ZA PODPORO ZDRAVEMU PREHRANJEVANJU NA OPERACIJSKEM SISTEMU iOS

    OpenAIRE

    Kunej, Gorazd

    2014-01-01

    V diplomskem delu predstavljamo mobilno aplikacijo za operacijski sistem iOS, ki omogoča izračun in beleženje potrebnih makrohranil, uporabo in dodajanje receptov ter beleženje zaužite hrane. Aplikacijo smo razvili s pomočjo orodja Xcode na operacijskem sistemu OSX. Aplikacija ima preprost in pregleden uporabniški vmesnik ter sledi oblikovalskim smernicam operacijskega sistema iOS7. Testirali smo jo s pomočjo orodja iOS simulator, vgrajenega v orodje Xcode ter na mobilnih telefonih iPhone 4s,...

  14. RAZVOJ IN KARAKTERIZACIJA OPTIČNIH Ru - SENZORJEV ZA DOLOČANJE KISIKA

    OpenAIRE

    Kelc, Maja

    2012-01-01

    Rutenijevi kompleksi so daleč najbolj razširjeni O2 indikatorji, ker imajo učinkovito luminescenco, relativno stabilen kovina – ligand prenos naboja vzbujenega stanja, hiter odzivni čas, močno vidno absorpcijo, velike Stokes – ove preskoke in visoko fotokemično stabilnost. V diplomski nalogi smo za izdelavo senzorjev uporabili različne koncentracije rutenijevega kompleksa v različnih topilih. Preizkusili smo različne PVC folije uporabljene kot nosilec. Na »Spin – coaterju« smo optimirali p...

  15. Inteligentni sustav strojnog vida za automatiziranu kontrolu kvalitete keramičkih pločica

    OpenAIRE

    KESER, Tomislav; Hocenski, Željko; Hocenski, Verica

    2010-01-01

    U članku je prikazan automatizirani sustav za vizualnu kontrolu kvalitete keramičkih pločica uporabom strojnog računalnog vida. Proces proizvodnje keramičkih pločica u gotovo svim svojim fazama zadovoljavajuće je automatiziran, osim u fazi kontrole kvalitete, na kraju procesa. Kvaliteta keramičkih pločica provjerava se i ocjenjuje postupcima vizualne provjere kvalitete, gdje se ljudski čimbenik nastoji zamijeniti sustavom strojnog računalnog vida u funkciji povećanja kvalite...

  16. Razlike pri prevajanju nemško-slovenskih navodil za uporabo zdravil podjetja Bayer

    OpenAIRE

    2014-01-01

    Diplomsko delo predstavlja analizo štirih navodil za uporabo zdravil družbe Bayer, ki se v lekarnah dobijo brez recepta. Besedila so pisana v strokovnem jeziku, kar pomeni, da jih je zaradi strokovne farmacevtske terminologije težje prevajati in zato potrebujejo dodatno pozornost. Kot že samo ime pove, je strokovni jezik v veliki meri namenjen stroki, obstajajo pa besedila, ki so kljub strokovnemu jeziku posplošena in namenjena laikom. Tako so besedila v tem diplomskem delu namenjena ljudem, ...

  17. MIKROKRMILNIŠKI SISTEM ZA MERJENJE TEMPERATURE IN RELATIVNE VLAŽNOSTI

    OpenAIRE

    Obojnik, Žiga

    2016-01-01

    V prvem delu diplomskega dela je na kratko predstavljena zgodovina merjenja temperature in temperaturne lestvice. Podrobneje so opisani ključni elektronski elementi, ki smo jih uporabil in sicer senzor za merjenje temperature in relativne vlažnosti SHT75, mikrokrmilnik PIC16f648a, štirivrstični zaslon LCD, napajalnik Traco Power ter programska oprema MikroC, Altium Designer in PICkit2. V zadnjem delu diplomskega dela je prikazana električna shema, 3D model vezja, izdelava tiskanine , opis de...

  18. Kinetički modeli za ekstrakciju uljarica superkritičnim CO2 - pregledni rad

    OpenAIRE

    Jokić, Stela; B. Nagy; Velić, D.; Bucić-Kojić, Ana; Bilić, M.

    2011-01-01

    Ekstrakcija uljarica superkritičnim fluidima u posljednjih nekoliko desetljeća nailazi na sve veće zanimanje u pogledu njene moguće komercijalne primjene. Razlog tome su brojne prednosti superkritične ekstrakcije, u odnosu na klasične ekstrakcijske postupke pomoću organskih otapala, kao i činjenicu da CO2, kao otapalo, ima oznaku GRAS te se smatra potpuno sigurnim za primjenu u proizvodnji i preradi hrane. Superkritična ekstrakcija, na industrijskoj razini, trenutno je usmjerena na dekofeiniz...

  19. Razvoj hidroksiapatit-ciprofloksacin implantata za kosti “dizajniranjem kvalitete”

    OpenAIRE

    Nayak, Amit Kumar; Laha, Bibek; SEN, KALYAN KUMAR

    2011-01-01

    U radu je opisan razvoj hidroksiapatit (HAp)-ciprofloksacin implantata za kosti “dizajniranjem kvalitete”. Učinak nezavisnih varijabli poput količine dodanog lijeka, brzine miješanja i udjela ortofosforne kiseline na koncentraciju lijeka u HAp-sustavu dobivenom precipitacijom optimiran je koristeći 23 faktorijalno dizajniranje. Pomoću polinomske jednadžbe prvog reda određena je optimalna koncentracija lijeka u implantatima na bazi HAp. Dobiveni odgovori podudaraju se s predviđenim vrijednosti...

  20. Uporaba umetne inteligence za reševanje zahtevnih inženirskih problemov

    OpenAIRE

    Šikovec, Simon

    2013-01-01

    diplomsko delo opisuje različne metode umetne inteligence in njihovo uporabo v inženirstvu. V uvodnem delu je razčlenitev umetne inteligence in splošen opis, ki mu sledi nekaj primerov. S primeri, kot sta na primer optimizacija obdelovalnih parametrov in napovedovanje oziroma obnašanje sistema v prihodnosti, želimo pokazati, da je uporaba umetne inteligence učinkovit pristop za reševanje inženirskih problemov. Na koncu obeh primerov prikažemo, da je uporaba metod umetne inteligence učinkovita...

  1. UPORABA BLUETOOTH TEHNOLOGIJE ZA OBVEŠČANJE IN OGLAŠEVANJE

    OpenAIRE

    Rožman, Ajda

    2011-01-01

    Diplomska naloga obravnava uporabo tehnologije Bluetooth za obveščanje in oglaševanje v konkretnem podjetju, ki ponuja marketinške storitve. Podane so tehnične značilnosti Bluetooth, izdelana je primerjava z drugimi brezžičnimi tehnologijami in predstavljena je SWOT analiza. Opisan je postopek oglaševanja s pomočjo Bluetooth in konkretni primeri. Izvedena je anketa o uporabi Bluetooth na vzorcu 150 ljudi. Preizkus na terenu je pokazal, da je bilo uspešno poslanih 23,8 % (9.482) sporočil, 8,5 ...

  2. Procjena postupaka za smanjenje tvrdoće srčike biljke Agave americana

    OpenAIRE

    Ramírez, José A.; Gómez-Ayala, Rocio C.; Jacques-Hernández, Cuauhtémoc; Vázquez, Manuel

    2006-01-01

    Biljka Agave americana sadrži inulin kao rezervu ugljikohidrata, stoga je zanimljiva za ekstrakciju inulina prešanjem. Prinos je procesa malen zbog velike tvrdoće srčike. Cilj je ovoga rada procjena prethodne obrade radi smanjenja tvrdoće pri prešanju biljke. Ispitana je i optimirana obrada biljke vodom, s 1 % masenog udjela sumporne kiseline ili 1 % masenog udjela natrijeve lužine. Prethodna obrada srčike A. americana s 1 % sumporne kiseline smanjila je tvrdoću s 30000 g na 2000 g (sile kida...

  3. Tekućinski antisolvent postupak taloženja za modifikaciju topljivosti bikalutamida

    OpenAIRE

    ALI MEER, TARIQUE; SAWANT, KIRAN P.; Amin, Purnima D.

    2011-01-01

    Tekućinski antisolvent postupak upotrijebljen je za moduliranje topljivosti bikalutamida. Zbog vrlo slabe topljivosti u vodi i sporog oslobađanja, bioraspoloživost bikalutamida je mala i varijabilna. Cilj rada je poboljšati topljivost bikalutamida koristeći antisolvent precipitaciju. Kao hidrofilni polimer korišten je HPMC E5, a kao surfaktant Poloxamer 407. Variranjem količine polimera, surfaktanta i lijeka proces je optimiran. Nastali mikrokristali analizirani su uobičajenim instrumentalnim...

  4. El viaje de Sáenz de Oíza a Estados Unidos (1947-1948)

    OpenAIRE

    Martín-Gómez, C. (César)

    2006-01-01

    (Actas preliminares del V Congreso Internacional “Historia de la arquitectura moderna española") ¿Por qué hablar del viaje de Sáenz de Oíza a Estados Unidos? Los años cuarenta y cincuenta fueron los años de los viajes a Norteamérica para la formación de muchos técnicos y arquitectos españoles, y en este caso el viaje de un “arquitecto que aprendió a aprender en Estados Unidos".

  5. Facilities & Leadership

    Data.gov (United States)

    Department of Veterans Affairs — The facilities web service provides VA facility information. The VA facilities locator is a feature that is available across the enterprise, on any webpage, for the...

  6. Carbon-coated LiFePO4-porous carbon composites as cathode materials for lithium ion batteries.

    Science.gov (United States)

    Ni, Haifang; Liu, Jinkun; Fan, Li-Zhen

    2013-03-07

    This work introduces a facile strategy for the synthesis of carbon-coated LiFePO(4)-porous carbon (C-LiFePO(4)-PC) composites as a cathode material for lithium ion batteries. The LiFePO(4) particles obtained are about 200 nm in size and homogeneously dispersed in porous carbon matrix. These particles are further coated with the carbon layers pyrolyzed from sucrose. The C-LiFePO(4)-PC composites display a high initial discharge capacity of 152.3 mA h g(-1) at 0.1 C, good cycling stability, as well as excellent rate capability (112 mA h g(-1) at 5 C). The likely contributing factors to the excellent electrochemical performance of the C-LiFePO(4)-PC composites could be related to the combined effects of enhancement of conductivity by the porous carbon matrix and the carbon coating layers. It is believed that further carbon coating is a facile and effective way to improve the electrochemical performance of LiFePO(4)-PC.

  7. Starševstvo za tretje tisočletje v luči teorije navezanosti

    OpenAIRE

    2015-01-01

    Bowbly je v svoji teoriji navezanosti pojasnil, da ima človek vrojen mehanizem za iskanje stika in navezovanja z odraslim, saj ga za preživetje ob sebi nujno potrebuje. Skupaj z Ainsworth sta ugotovila, da se otrok naveže na skrbnika tudi, če mu ta ne daje varnosti- v tem primeru se naveže na ne-varno.Sistemski avtorji in nevropsihologi to vedno znova potrjujejo in dodajajo, da se brez odraslega otrokovi možgani sploh ne bi mogli razviti. Če pa želimo, da se otrok razvija v vsej svoji polnost...

  8. Uvod u ZigBee protokol za bežične mreže upravljanja i nadzora

    OpenAIRE

    Taradi, T.; Kukec, Mihael

    2010-01-01

    Ovaj rad uvodi nas u osnove bežične komunikacije putem ZigBee protokola, uz primjer ZigBee protokolnog stoga tvrtke Microchip. U njemu su opisani osnovni pojmovi vezani uz ZigBee protokol, slojevi protokolnog stoga, te je objašnjeno na koji se način šalju i primaju poruke. Na kraju je opisan hardver potreban za izradu Microchipovog ZigBee uređaja, čime je stvorena podloga za konkretnu primjenu ovog protokola, što je ujedno i cilj ovog rada.

  9. ŠTUDIJ IN PRESKUŠANJE LASTNOSTI VAROV VISOKO ZMOGLJIVIH TEKSTILIJ ZA ŠOTORE IN PONJAVE

    OpenAIRE

    2011-01-01

    V diplomskem delu z naslovom »Študij in preskušanje lastnosti varov visokozmogljivih tekstilij za šotore in ponjave« je bil namen analizirati mehanske lastnosti različnih kompozitnih materialov za izdelavo šotorov in predvsem analizirati in optimirati izdelavo varov, ki spajajo posamezne dele izdelanega šotora. Ob uporabi visokofrekvenčnega varjenja (HF) tekstilnih kompozitnih materialov (PES/PVC) smo spreminjali parametre varjenja: širino vara ter moč varjenja. S pomočjo ustreznih standardov...

  10. Upravljanje proizvodnjom u konceptu digitalnih poduzeća za preradu drva i proizvodnju namještaja

    OpenAIRE

    Matičević, Gordana; Lovrić, Tadija

    2008-01-01

    Prerada drva i proizvodnja namještaja velika su šansa Hrvatske za izlazak na međunarodno tržište. Osim prirodnih prednosti sadržanih u kvaliteti drva svjetske klase, Hrvatska ima i tradiciju te iskustvo i tehnološko znanje u proizvodnji poluproizvoda i finalnih proizvoda. Za konkurentni izlazak i opstanak na međunarodnom tržištu potrebno je podići razinu logističke potpore pripremi proizvodnje i proizvodnji radi boljeg iskorištenja drva i drvnih materijala, smanjenja gubitaka vremena u razvoj...

  11. Effect of molybdenum addition to ZA22 grain refined by titanium in the cast and after pressing by ECAP

    Science.gov (United States)

    Zaid, Adnan I. O.; Al-Hunetti, N. S.; Eyal-Awwad, K. Y. S.

    2016-08-01

    Zinc aluminum alloys are versatile materials which are widely used in manufacturing many industrial and engineering parts due to their attractive properties. The ZA22 has the extra advantage of possessing super plastic behavior within the temperature range from 350 to 375°C. The equal channel angular pressing, ECAP is a relatively recent manufacturing process by which heavy plastic deformation can be produced in materials resulting in grain refinement of its microstructure. It is, therefore, anticipated that if the ECAP process is applied to the ZA22 alloy after being grain refined by certain grain refiners may produce super plastic behavior in this alloy at room temperature, by this eliminating the heating process and its costs, hence widening its applications rendering it to be cost effective. In this paper, the effect of molybdenum addition at a rate of 0.1 % wt. to ZA22 grain refined by Ti on its metallurgical and mechanical characteristics in the cast condition and after applying the ECAP process is investigated. It was found that addition of Mo to ZA22 either in the nonrefined or the refined by Ti resulted in refining its structure being more refined in the latter. The ECAP process resulted in further refinement of its structure of the ZA22-Ti, ZA22-Mo and the ZA22-Ti-Mo alloys. Regarding the mechanical behavior, it was found that addition of Mo to ZA22 resulted in pronounced reduction of its mechanical strength presented by the following values of the flow stress at 20% strain: from 451 MPa to 346 MPa, whereas pronounced increase in case of Ti addition i.e. by 22.22% and only increase of 1.1% when Mo is added in the presence of Ti. However the Vickers hardness HV was increased by 5% in case of Ti addition and 2.5% increase in case of Mo addition. Finally it was concluded that super plastic behavior was obtained at room temperature by the addition of Mo and the ECAP process.

  12. PRIMENA MULTIMEDIJALNIH SERVISA U ŠIROKOPOJASNOM OKRUŽENJU ZA POBOLJŠANJE LOGISTIČKIH POTREBA VOJSKE

    OpenAIRE

    2012-01-01

    U radu je analiziran potrebni protok pojedinih multimedijalnih servisa i ukazano na mogućnosti primene nekih od servisa u širokopojasnom okruženju radi poboljšanja logističkih potreba vojske. Sve je veća potreba da se informacije prenose u različitom obliku, od govora, preko teksta, podataka i grafičke mirne slike, do pokretne video-slike. Zahtev za prenosom informacija u visokoj rezoluciji iziskuje povećanje protoka do nekoliko desetima Mb/s. Platformu za čitav niz multimed...

  13. MOBILNI LOKACIJSKI SERVIS ZA POZICIONIRANJE I PREZENTIRANJE OBJEKATA KULTURNE BAŠTINE I WEB 2.0 TEHNOLOGIJE

    OpenAIRE

    Orehovački, Tihomir; Stapić, Zlatko; Bubaš, Goran

    2009-01-01

    Razvoj mobilnih tehnologija u posljednjih nekoliko godina omogućio je njihovu uporabu u svim područjima svakodnevnoga života. Jedna od komponenti koje sve više postaju sastavni dio naprednijih mobilnih uređaja (npr. mobilnih telefona i osobnih digitalnih pomoćnika) jest GPS prijemnik, a njegova je najčešća uporaba u uređajima za određivanje geografske lokacije i pomoć u navigaciji određenim područjem. U ovom radu predstavili smo koncept sustava za lociranje i prezentiranje informacija o objek...

  14. Biochemistry Facility

    Data.gov (United States)

    Federal Laboratory Consortium — The Biochemistry Facility provides expert services and consultation in biochemical enzyme assays and protein purification. The facility currently features 1) Liquid...

  15. ZBORNIK ZA NARODNI ŽIVOT I OBIČAJE I RUKOPISNE ZBIRKE ARHIVA ODBORA ZA NARODNI ŽIVOT I OBIČAJE KAO IZVOR ZA PROUČAVANJE POVIJESTI ROMSKOG STANOVNIŠTVA NA PODRUČJU HRVATSKE U RAZDOBLJU OD KRAJA XIX. STOLJEĆA DO 1941.

    OpenAIRE

    Vojak, Danijel

    2005-01-01

    Rad Odbora za narodni život i običaje Hrvatske akademije znanosti i umjetnosti (prije: Jugoslavenske akademoje znanosti i umjetnosti) iznimno je vrijedan za proučavanje i romske manjine na području Hrvatske u razdoblju od kraja XIX. st. sve do danas. Skupljači građe, slijedeći Osnovu koju je napisao Antun Radić, bilježili su način na koji je domicilno stanovništvo percipiralo romsku manjinsku zajednicu. Jedan dio građe objavljen je u Zborniku za narodni život i običaje, dok je veći dio građe ...

  16. Dynamic PROOF clusters with PoD: architecture and user experience

    Science.gov (United States)

    Manafov, Anar

    2011-12-01

    PROOF on Demand (PoD) is a tool-set, which sets up a PROOF cluster on any resource management system. PoD is a user oriented product with an easy to use GUI and a command-line interface. It is fully automated. No administrative privileges or special knowledge is required to use it. PoD utilizes a plug-in system, to use different job submission front-ends. The current PoD distribution is shipped with LSF, Torque (PBS), Grid Engine, Condor, gLite, and SSH plug-ins. The product is to be extended. We therefore plan to implement a plug-in for AliEn Grid as well. Recently developed algorithms made it possible to efficiently maintain two types of connections: packet-forwarding and native PROOF connections. This helps to properly handle most kinds of workers, with and without firewalls. PoD maintains the PROOF environment automatically and, for example, prevents resource misusage in case when workers idle for too long. As PoD matures as a product and provides more plug-ins, it's used as a standard for setting up dynamic PROOF clusters in many different institutions. The GSI Analysis Facility (GSIAF) is in production since 2007. The static PROOF cluster has been phased out end of 2009. GSIAF is now completely based on PoD. Users create private dynamic PROOF clusters on the general purpose batch farm. This provides an easier resource sharing between interactive local batch and Grid usage. The main user communities are FAIR and ALICE.

  17. Microwave synthesis of molybdenum doped LiFePO4/C and its electrochemical studies.

    Science.gov (United States)

    Naik, Amol; P, Sajan C

    2016-05-10

    A Mo-doped LiFePO4 composite was prepared successfully from an iron carbonyl complex by adopting a facile and rapid microwave assisted solid state method. The evolution of gases from the iron precursor produces a highly porous product. The formation and substitution of Mo in LiFePO4 were confirmed by X-ray diffraction; surface analysis was carried out by scanning electron microscopy, field emission scanning electron microscopy, and transmission electron microscopy. The electrochemical properties of the substituted LiFePO4 were examined by cyclic voltammetry, electrochemical impedance spectroscopy and by recording charge-discharge cycles. It was observed that the as prepared composites consisted of a single phase orthorhombic olivine-type structure, where Mo(6+) was successfully introduced into the M2(Fe) sites. Incorporation of supervalent Mo(6+) introduced Li(+) ion vacancies in LiFePO4. The synthesized material facilitated lithium ion diffusion during charging/discharging due to the charge compensation effect and porosity. The battery performance studies showed that LiMo0.05Fe0.095PO4 exhibited a maximum capacity of 169.7 mA h g(-1) at 0.1 C current density, with admirable stability retention. Even at higher current densities, the retention of the specific capacity was exceptional.

  18. Radioactive {sup 210}Po in magnesium supplements

    Energy Technology Data Exchange (ETDEWEB)

    Struminska-Parulska, Dagmara Ida [Gdansk Univ. (Poland). Environmental Chemistry and Radiochemistry Chair

    2016-08-01

    The aim of this pioneer study was to determine polonium {sup 210}Po in the most popular magnesium supplements in Poland and estimate the possible related dose assessment to the consumers. The analyzed magnesium pharmaceutics contained organic or inorganic magnesium compounds; some from natural sources. The objectives of this research were to investigate the naturally occurring {sup 210}Po activity concentrations in magnesium supplements, find the correlations between {sup 210}Po concentration in medicament and magnesium chemical form, and calculate the effective radiation dose connected to analyzed magnesium supplement consumption. The highest {sup 210}Po activity concentrations were determined in mineral tablets made from sedimentary rocks, namely dolomite - 3.84 ± 0.15 mBq g{sup -1} (sample Mg17). The highest annual radiation dose from {sup 210}Po taken with 1 tablet of magnesium supplement per day or with 400 mg of pure Mg daily would come from sample Mg17 (dolomite) - 1.35 ± 0.5 and 8.44 ± 0.33 μSv year{sup -1} respectively.

  19. Una poética del pliegue

    Directory of Open Access Journals (Sweden)

    Ana Porrúa

    2000-11-01

    Full Text Available La producción de Juan Gelman-de Violín y otras cuestiones a Relaciones- puede inscribirse dentro de la poética sesentista caracterizada por la hegemonía de la narración y la apertura del discurso poético al resto de los discursos sociales, pero también establece una compleja relación con las vanguardias históricas. La noción de pliegue permite revisar las articulaciones de este conflicto; como espacio el pliegue separa ambas poéticas, la "coloquialista" y vanguardista, que pueden leerse en el interior del corpus propuesto en estado puro, yuxtapuestas, o bajo la forma del cruce que instala la polémica entre libros o textos de un mismo libro. La idea depliegue como rasgo operatorio permite, por su parte, revisar la relación entre ambas poéticas en el interior de un poema, focalizando la materia, el lenguaje. En este caso la poética vanguardista funciona como cuestionamiento de la linealidad del texto sesentista.

  20. Una poética del pliegue

    Directory of Open Access Journals (Sweden)

    Ana Porrúa

    2001-11-01

    Full Text Available La producción de Juan Gelman-de Violín y otras cuestiones a Relaciones- puede inscribirse dentro de la poética sesentista caracterizada por la hegemonía de la narración y la apertura del discurso poético al resto de los discursos sociales, pero también establece una compleja relación con las vanguardias históricas. La noción de pliegue permite revisar las articulaciones de este conflicto; como espacio el pliegue separa ambas poéticas, la "coloquialista" y vanguardista, que pueden leerse en el interior del corpus propuesto en estado puro, yuxtapuestas, o bajo la forma del cruce que instala la polémica entre libros o textos de un mismo libro. La idea depliegue como rasgo operatorio permite, por su parte, revisar la relación entre ambas poéticas en el interior de un poema, focalizando la materia, el lenguaje. En este caso la poética vanguardista funciona como cuestionamiento de la linealidad del texto sesentista.

  1. High efficient multifunctional Ag{sub 3}PO{sub 4} loaded hydroxyapatite nanowires for water treatment

    Energy Technology Data Exchange (ETDEWEB)

    Li, Yaling; Zhou, Hangyu; Zhu, Genxing [Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou (China); Shao, Changyu; Pan, Haihua; Xu, Xurong [Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou (China); Qiushi Academy for Advanced Studies, Zhejiang University (China); Tang, Ruikang, E-mail: rtang@zju.edu.cn [Center for Biomaterials and Biopathways, Department of Chemistry, Zhejiang University, Hangzhou (China); Qiushi Academy for Advanced Studies, Zhejiang University (China)

    2015-12-15

    Highlights: • The multifunctional Ag{sub 3}PO{sub 4} loaded hydroxyapatite (HAP) nanowires were synthesized via a facile in-situ precipitation method. • By optimizing the initial concentration of AgNO{sub 3}, the well-distributed Ag{sub 3}PO{sub 4}/HAP composites could be achieved. • The Ag{sub 3}PO{sub 4}/HAP composites showed excellent photocatalytic performance for the decomposition of dyes under visible light irradiation. • The maximum absorption capacity of the Ag{sub 3}PO{sub 4}/HAP composites for Pb(II) was 250 mg/g, approximately three times as that of pure HAP. • The Ag{sub 3}PO{sub 4}/HAP composites also exhibited excellent antibacterial activities even at relative low concentrations. - Abstract: Organic, inorganic, and biological pollutants are typical water contaminants and they seriously affect water quality. In this study, we suggested that a novel multifunctional Ag{sub 3}PO{sub 4} loaded hydroxyapatite (HAP) material can remove the typical pollutants from water. The Ag{sub 3}PO{sub 4}/HAP composites were synthesized facilely via in-situ precipitation of Ag{sub 3}PO{sub 4} on the pre-existing HAP nanowires. By optimizing the composition of Ag{sub 3}PO{sub 4} and HAP, the material could achieve an optimal photocatalytic activity to decompose rhodamine B (RhB), methyl orange (MO) and methylene blue (MB) under visible light irradiations with enhanced pH stability. Besides, the adsorption of Pb(II) on the Ag{sub 3}PO{sub 4}/HAP reached a maximum capacity of 250 mg/g and this value was approximately three times as that of pure HAP. Furthermore, the composite material exhibited excellent antibacterial activities towards gram-negative bacterium (Escherichia coli) and gram-positive bacterium (Stphylococcus aureus). The results highlighted the cooperative effect between Ag{sub 3}PO{sub 4} and hydroxyapatite (HAP). The simultaneous removals of dyes, toxic metal ions, and bacteria with a high efficiency followed an easy approach for the purification

  2. Consumer satisfaction in prosthetics and orthotics facilities

    NARCIS (Netherlands)

    Geertzen, J.H.B.; Gankema, H.G.J.; Groothoff, J.W.; Dijkstra, P.U.

    2002-01-01

    The aim of this study was to assess consumer/patient satisfaction with the services of the prosthetics and orthotics (P&O) facilities in the north of the Netherlands, using a modified SERVQUAL questionnaire. In this questionnaire, consumer interests and experiences are assessed on a 5-point Likert s

  3. Predlogi za uvedbo arheologije v pouk klasičnih jezikov

    Directory of Open Access Journals (Sweden)

    Katarina Batagelj

    2001-12-01

    Full Text Available Razbiranje in prevajanje preteklih dogodkov, zapisanih v zemlji, na kamnu, na pergamentu ali na kateremkoli materialu, ki se je ohranil do danes, je zares uspešno, ko se združi znanje ljudi različnih strok. Učenje jezika niso samo slovnična pravila in besedišče, ampak tudi spoznavanje kulturnih in civilizacijskih dosežkov in historičnega okvira, v katerem je jezik živel. Pri učenju klasičnih jezikov ponuja arheologija poleg časovno umeščenih zgodovinskih podatkov oprijemljivo in predstavljivo materialno oporo za spoznavanje (antične kulture. Svojo metodo in področje delaje razširila tudi na mlajša zgodovinska obdobja, torej ni več omejena samo na izkopavanja iz obdobij, za katera pisni viri ne obstajajo ali pa so pomanjkljivi. Z uporabo nedestruktivnih metod raziskovanja (aerofotografija, geofizikalne meritve, topografija ipd. postaja vse bolj interdisciplinarna.

  4. PO*WW*ER mobile treatment unit process hazards analysis

    Energy Technology Data Exchange (ETDEWEB)

    Richardson, R.B.

    1996-06-01

    The objective of this report is to demonstrate that a thorough assessment of the risks associated with the operation of the Rust Geotech patented PO*WW*ER mobile treatment unit (MTU) has been performed and documented. The MTU was developed to treat aqueous mixed wastes at the US Department of Energy (DOE) Albuquerque Operations Office sites. The MTU uses evaporation to separate organics and water from radionuclides and solids, and catalytic oxidation to convert the hazardous into byproducts. This process hazards analysis evaluated a number of accident scenarios not directly related to the operation of the MTU, such as natural phenomena damage and mishandling of chemical containers. Worst case accident scenarios were further evaluated to determine the risk potential to the MTU and to workers, the public, and the environment. The overall risk to any group from operation of the MTU was determined to be very low; the MTU is classified as a Radiological Facility with low hazards.

  5. Analýza vývoje triatlonu od jeho počátku do současnosti

    OpenAIRE

    PAZDÍRKA, Aleš

    2011-01-01

    The bachelor thesis deals with the topic related to the historical development of triathlon since its first appearance up the present. The thesis does not only regard the development of triathlon in the world, but also traces the history of the sport as such in the Czech Republic.

  6. Facility Management's Role in Organizational Sustainability

    Science.gov (United States)

    Adams, Gregory K.

    2013-01-01

    Facility managers have questions about sustainability. How do an organization's physical facilities--its built environment--and the management of them, influence the sustainability of the organization or institution as a whole? How important is Facility Management (FM) to the overall sustainability profile of an organization? Facility managers…

  7. Facility Management's Role in Organizational Sustainability

    Science.gov (United States)

    Adams, Gregory K.

    2013-01-01

    Facility managers have questions about sustainability. How do an organization's physical facilities--its built environment--and the management of them, influence the sustainability of the organization or institution as a whole? How important is Facility Management (FM) to the overall sustainability profile of an organization? Facility managers…

  8. Przemiany utopii w chorwackiej prozie insularnej drugiej połowy XX i początku XXI wieku na wybranych przykładach

    Directory of Open Access Journals (Sweden)

    Anna Boguska

    2014-11-01

    Artykuł jest próbą pokazania innego sposobu prezentowania najnowszej literatury chor­wackiej aniżeli poprzez takie tematy jak problematyka narodowej tradycji kraju, patriotyzm, postkomunizm, kwestie tożsamości i emigracji, co wydaje się najbardziej popularną tendencją wśród polskich badaczy. Autor artykułu, wpisując swoje badanie w nurt regionalistyczny, omawia chorwacką prozę insularną poprzez kategorię utopii. Izgubljeni zavičaj Slobodana Novaka widzi jako przykład utopii modernistycznej, Otok snova Damira Miloša interpretuje jako postmodernistyczną dystopię, zaś Vodič po otoku Senka Karuzy postrzega jako wizję nowego rodzaju utopii post-postmodernistycznej.

  9. Numerical simulations of enhanced gas recovery at the Załezcze gas field in Poland confirm high co

    NARCIS (Netherlands)

    Klimkowski, Ł.; Nagy, S.; Papiernik, B.; Orlic, B.; Kempka, T.

    2015-01-01

    Natural gas from the Załęcze gas field located in the Fore-Sudetic Monocline of the Southern Permian Basin has been produced since November 1973, and continuous gas production led to a decrease in the initial reservoir pressure from 151 bar to about 22 bar until 2010. We investigated a prospective

  10. Effects of holding temperature and time on semi-solid isothermal heat-treated microstructure of ZA84 magnesium alloy

    Institute of Scientific and Technical Information of China (English)

    YANG Ming-bo; PAN Fu-sheng; CHENG Ren-ju; SHEN Jia

    2008-01-01

    The feasibility of fabricating ZA84 magnesium alloy with non-dendritic microstructure by a semi-solid isothermal heat treatment process and the effects of holding temperature and time on the semi-solid isothermal heat-treated microstructure of the alloy were investigated. The results indicate that it is possible to produce ZA84 alloy with non-dendritic microstructure by suitable semi-solid isothermal heat treatment. After being treated at 560-575℃ for 120min, ZA84 magnesium alloy can obtain a non-dendritic microstructure with 14.2%-25.6% liquid fraction and an average size of 56-65μm of the unmelted primary solid particles. With the increasing holding time from 30 to 120min or holding temperature from 560 to 575℃, the average size of unmelted primary solid particles decreases and globular tendency becomes more obvious. Under the experimental condition, the microstructural evolution of ZA84 alloy during semi-solid isothermal treatment is mainly composed of three stages of initial coarsening. structulseparation and spheroidization. The subsequent coarsening of spheroidal grains is not observed.

  11. Numerical simulations of enhanced gas recovery at the Załezcze gas field in Poland confirm high co

    NARCIS (Netherlands)

    Klimkowski, Ł.; Nagy, S.; Papiernik, B.; Orlic, B.; Kempka, T.

    2015-01-01

    Natural gas from the Załęcze gas field located in the Fore-Sudetic Monocline of the Southern Permian Basin has been produced since November 1973, and continuous gas production led to a decrease in the initial reservoir pressure from 151 bar to about 22 bar until 2010. We investigated a prospective e

  12. Simulacioni model sistema za upravljanje letom protivbrodske rakete / Model for simulating the flight control system of a antiship missile

    Directory of Open Access Journals (Sweden)

    Nebojša N. Gaćeša

    2007-04-01

    Full Text Available U radu je analiziran program za simulaciju sistema za upravljanje letom protivbrodske rakete sa radarskom glavom za samonavođenje. Analiziran je matematički model rakete, model autopilota i model cilja. Ovakvim pristupom dobijen je rezultat koji omogućava uspostavljanje realnijeg procesa praćenja leta konkretne protivbrodske rakete, budući da upravljanje letom rakete na celoj trajektoriji ima znatne prednosti u odnosu na nevođene projektile, pre svega zbog mogućnosti gađanja pokretnih ciljeva. Simulacioni model upravljanja letom rakete pruža mogućnosti za dalje proučavanje ove klase raketa. / The paper analyzes a program for simulating the flight control of an antiship missile with the radar seeker. The paper analyzes a mathematic missile model an autopilot model and a target model. Thus obtained results enable a more realistic process of flight tracking of a particular antiship missile as the missile guidance along the whole trajectory provides many advantages over unguided projectiles, primarily because of the possibility to fire at moving targets. The flight control simulation model enables further study of this missile class.

  13. Determination of 210 Po in Water%水中210Po 的分析

    Institute of Scientific and Technical Information of China (English)

    王莉莉; 张晔; 陆月萍; 周彦; 曹钟港

    2013-01-01

      水中痕量210 Po 分析采用的是示踪剂的α能谱分析法。在待分析水样中加入208 Po 示踪剂,以氢氧化铁共沉淀的形式载带钋,在0.5 mol/L 盐酸体系中利用钋对银的高度选择性实现自沉积。利用α谱仪探测系统对样品源测量48 h ,根据钋同位素的对应谱分析210 Po 活度。本文讨论该法与我国现行国标、EML 及 IAEA 分析技术的差异性。%  The determination of 210 Po in water samples was carried out by using of 208 Po tracer with the aid of alpha spectrometry .Adding 208 Po tracer to water samples before preliminary preparation ,the 210 Po and were co-precipitated with iron hydroxide .The polonium were auto-deposited on silver disc by advantage of its high selectiveness in 0 .5 mol/L hydrochloric acid solution .The sample source was counted for 60 hours in al-pha spectrometry system .The determination of 210 Po activity was performed according to different spectra .In addition ,the article discusses the differences of the present analytical method and the national standards ,EML and IAEA methods . 208 Po

  14. BiPO4 photocatalyst employing synergistic action of Ag/Ag3PO4 nanostructure and graphene nanosheets

    Science.gov (United States)

    Mohaghegh, N.; Rahimi, E.

    2016-06-01

    Graphene-supported BiPO4/Ag/Ag3PO4 photocatalyst has been fabricated by simple hydrothermal and impregnation reaction. In BiPO4/Ag/Ag3PO4 based on Reduced Graphene Oxide (RGO), this network renders numerous pathways for rapid mass transport, strong adsorption and multireflection of incident light; meanwhile, the interface between BiPO4/Ag/Ag3PO4 and RGO increases the active sites and electron transfer rate. BiPO4/Ag/Ag3PO4 based on RGO noticeably exhibited high photocatalytic activity than that of BiPO4/Ag/Ag3PO4 and P25 under visible light irradiation for cationic dye (Rhodamine B), anionic dye (methyl orange) and 4-chlorophenol (4-CP) as a neutral pollutant, which are usually difficult to be degraded over the other catalysts. This enhanced photocatalytic activity of Graphene-supported BiPO4/Ag/Ag3PO4 for all pollutants could be mainly ascribed to the reinforced charge transfer from BiPO4/Ag/Ag3PO4 to RGO, which suppresses the recombination of electron/hole pairs. Besides that, this photocatalyst can be used repetitively with a high photocatalytic activity and no apparent loss of activity occurs. The results reveal that the RGO nanosheets work as a photocatalyst promoter during the photocatalytic reaction, leading to an improved photocatalytic activity.

  15. Scintillation properties of rare-earth doped NaPO3-Al(PO3)3 glasses

    Science.gov (United States)

    Kuro, Tomoaki; Okada, Go; Kawaguchi, Noriaki; Fujimoto, Yutaka; Masai, Hirokazu; Yanagida, Takayuki

    2016-12-01

    We systematically investigated photoluminescence (PL), scintillation and dosimeter properties of rare-earth (RE) doped NaPO3-Al(PO3)3 (NAP) glasses. The NAP glasses doped with a series of RE ions (La-Yb, except Pm) with a consistent concentration (0.3 wt%) were prepared by the conventional melt-quenching method. The PL and scintillation decay time profiles showed fast (ns) and slow (μs or ms) components: the fast components from 15 to 100 ns were due to the host or 5d-4f transition emission, and the slow components from 15 μs to 5 ms were due to the 4f-4f transitions of RE. The thermally stimulated luminescence (TSL) was evaluated as a dosimeter property, and glow peaks appeared around 400 °C in all the samples. The TSL dose response function was examined in the dose range from 10 mGy to 10 Gy. Among the samples tested, Nd and Tb doped glasses showed higher signal by at least one order of magnitude than those of non-doped and other RE-doped samples. Over the dose range tested, the TSL signals are linearly related with the incident X-ray dose, showing a potential for practical applications.

  16. PRESUDE NA ŽUPANIJSKOM SUDU U ZAGREBU ZA KAZNENO DJELO UBOJSTVA I TEŠKOG UBOJSTVA OD 1998. DO 2002. GODINE

    OpenAIRE

    Mittermayer, Oliver

    2007-01-01

    U radu je izložena analiza sudske prakse na uzorku pravomoćnih i dostupnih sudskih odluka za kazneno djelo ubojstva (kao i teškog ubojstva i kvalifi ciranog ubojstva te pokušaja tih kaznenih djela) na Županijskom sudu u Zagrebu. Uzorak je sastavljen od spisa u 82 kaznena predmeta u kojima je došlo do optuženja za kaznena djela ubojstva i teškog ubojstva te za pokušaje tih kaznenih djela u razdoblju od 1998. do 2002. godine. Nastavno na prijašnja istraživanja, sudske su odluke anali...

  17. Pregled aplikacij za operacijski sistem Android in njihova možnost uporabe pri pouku vsebin s področja elektronike in robotike

    OpenAIRE

    Černe, Klemen

    2017-01-01

    Razvoj znanosti nam omogoča uporabo najrazličnejših novih tehnologij. Velik napredek so v zadnjem času dosegli mobilni telefoni in tablični računalniki. S popularnostjo le teh pa se je začel množični razvoj aplikacij, ki so uporabljene na njih. Moderne tehnologije pa so prodrle tudi na področje poučevanja. Čedalje več institucij za pomoč pri izobraževanju uporablja različne vrste informacijsko komunikacijskih sredstev (IKT). V tem diplomskem delu smo pregledali nekaj aplikacij za operacijs...

  18. Solvothermal synthesis of LiFePO{sub 4} nanoplates with (010) plane and the uniform carbon coated on their surface by esterification reaction

    Energy Technology Data Exchange (ETDEWEB)

    Ma, Zhipeng [Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004 (China); Shao, Guangjie, E-mail: shaoguangjie@ysu.edu.cn [Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004 (China); State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004 (China); Wang, Xu [The Equipment Research Institute of the General Logistic Department of the CPLA, Beijing 100010 (China); Song, Jianjun; Wang, Guiling; Liu, Tingting [Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004 (China)

    2014-02-14

    A facile solvothermal synthesis and esterification reaction combined with a high temperature calcination technique has been developed to prepare the uniform carbon coating LiFePO{sub 4} nanoplates. The carbon coating LiFePO{sub 4} nanoplates are investigated by X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscope (SEM), transmission electron microscope (TEM), galvanostatic intermittent titration technique (GITT) and galvanostatic charge–discharge test. A reasonable growth mechanism of LiFePO{sub 4} nanoplates is proposed on the basis of time dependent experimental results. The results show that each nanoplate is a LiFePO{sub 4} single crystal with the large (010) plane. According to Raman spectroscopy analysis, carbon is uniformly coated on the surface of LiFePO{sub 4} nanoplates. Electrochemical test results also indicate that the carbon coating LiFePO{sub 4} nanoplates exhibit a high reversible specific capacity of 144.8 mAh g{sup −1} at 0.5 C and 116.9 mAh g{sup −1} under lower discharging rate at −20 °C. - Highlights: • LiFePO{sub 4} nanoplates prepared by facile solvothermal synthesis expose large (010) plane. • The polyester network formed by the esterification reaction could entirely wrap LiFePO{sub 4}. • The polyester wrapped on the surface of LiFePO{sub 4} transformed into the uniform carbon layer after calcination. • LiFePO{sub 4}/C nanoplates have good high-rate and low-temperature performance.

  19. 新的大功率PoE标准——PoE+

    Institute of Scientific and Technical Information of China (English)

    Clay Stanford

    2009-01-01

    @@ 以太网供电(PoE)标准由IEEE 802.3af任务组于2003年制定,并已被业界所广泛接受.目前,各家主要的制造商均可提供具PoE端口的网络交换机.IP电话一直是PoE普及的推动力,不过PoE也广泛应用于其他多种应用,如无线接入点(WAP)、保安摄像机、RFID标签阅读器等,以及用来为出口标志,甚至电吉他等不那么主流的应用供电.

  20. 可见光驱动 Ag3PO4催化剂的可控制备及活性评价%Controlled synthesis and activity evaluation of visible-light-driven Ag3PO4 catalyst

    Institute of Scientific and Technical Information of China (English)

    葛明; 崔海涛; 刘美玲

    2014-01-01

    Three Ag3 PO4 photocatalysts were controlled synthesized via a facile precipitation method using AgNO3 and Na3 PO4 ,Na2 HPO4 ,NaH2 PO4 as raw materials. The samples were characterized by XRD,FE-SEM,UV-Vis,FTIR and BET. The photocatalytic activities of three Ag3 PO4 samples were evaluated for RhB degradation using visible light. Using Na3 PO4 ,Na2 HPO4 and NaH2 PO4 to prepared Ag3 PO4 ,the de-gree of crystallinity of sample was gradually increased,and the particle size was increased,the reaction rate constant for RhB degradation over the as-obtained Ag3 PO4 sample was 0. 03,0. 10,0. 15 min - 1 ,re-spectively. Na2 HPO4 As raw materials,the as-obtained Ag3 PO4 photocatalyst with higher yield exhibited the excellent photocatalytic activity. Under natural sunlight irradiation,the Ag3 PO4 photocatalyst could be reused. The photocatalytic activity of the photocatalyst decreased when Ag0 were produced during the pho-tocatalytic process.%以 AgNO3和 Na3 PO4、Na2 HPO4、NaH2 PO4为原料,采用简易液相沉淀法可控制备3种 Ag3 PO4光催化剂,采用 XRD、FE-SEM、UV-Vis、FTIR 及 BET 表征。以罗丹明 B 为目标污染物,评价样品的可见光催化活性。结果表明,采用 Na3 PO4、Na2 HPO4、NaH2 PO4制备 Ag3 PO4,样品的结晶度逐渐增加,粒径逐渐增大,3种样品均能吸收可见光,去除水体中罗丹明 B 的反应速率常数分别为0.03,0.10,0.15 min -1。以 Na2 HPO4为原料可获取高产率、高活性Ag3 PO4光催化剂。真实太阳光照射下,Ag3 PO4光催化剂可重复利用。单质银的产生降低了催化剂的光催化活性。

  1. Fabrication Facilities

    Data.gov (United States)

    Federal Laboratory Consortium — The Fabrication Facilities are a direct result of years of testing support. Through years of experience, the three fabrication facilities (Fort Hood, Fort Lewis, and...

  2. Measurement of the $Z/A$ dependence of neutrino charged-current total cross-sections

    CERN Document Server

    Kayis-Topaksu, A; Van Dantzig, R; De Jong, M; Konijn, J; Melzer, O; Oldeman, R G C; Pesen, E; Van der Poel, C A F J; Spada, F R; Visschers, J L; Güler, M; Serin-Zeyrek, M; Kama, S; Sever, R; Tolun, P; Zeyrek, M T; Armenise, N; Catanesi, M G; De Serio, M; Ieva, M; Muciaccia, M T; Radicioni, E; Simone, S; Bülte, A; Winter, Klaus; El-Aidi, R; Van de Vyver, B; Vilian, P; Wilquet, G; Saitta, B; Di Capua, E; Ogawa, S; Shibuya, H; Artamonov, A V; Brunner, J; Chizhov, M; Cussans, D G; Doucet, M; Fabre, Jean-Paul; Hristova, I R; Kawamura, T; Kolev, D; Litmaath, M; Meinhard, H; Panman, J; Papadopoulos, I M; Ricciardi, S; Rozanov, A; Saltzberg, D; Tsenov, R V; Uiterwijk, J W E; Zucchelli, P; Goldberg, J; Chikawa, M; Arik, E; Song, J S; Yoon, C S; Kodama, K; Ushida, N; Aoki, S; Hara, T; Delbar, T; Favart, D; Grégoire, G; Kalinin, S; Makhlyoueva, I V; Gorbunov, P; Khovanskii, V D; Shamanov, V V; Tsukerman, I; Bruski, N; Frekers, D; Rondeshagen, D; Wolff, T; Hoshino, K; Kawada, J; Komatsu, M; Miyanishi, M; Nakamura, M; Nakano, T; Narita, K; Niu, K; Niwa, K; Nonaka, N; Sato, O; Toshito, T; Buontempo, S; Cocco, A G; D'Ambrosio, N; De Lellis, G; De Rosa, G; Di Capua, F; Ereditato, A; Fiorillo, G; Marotta, A; Messina, M; Migliozzi, P; Pistillo, C; Santorelli, R; Scotto-Lavina, L; Strolin, P; Tioukov, V; Nakamura, K; Okusawa, T; Dore, U; Loverre, P F; Ludovici, L; Maslennikov, A L; Righini, P; Rosa, G; Santacesaria, R; Satta, A; Barbuto, E; Bozza, C; Grella, G; Romano, G; Sirignano, C; Sorrentino, S; Sato, Y; Tezuka, I

    2003-01-01

    A relative measurement of total cross-sections is reported for polyethylene, marble, iron, and lead targets for the inclusive charged-current reaction nu_mu + N -> mu^- + X. The targets, passive blocks of ~100kg each, were exposed simultaneously to the CERN SPS wide-band muon-neutrino beam over a period of 18 weeks. Systematics effects due to differences in the neutrino flux and detector efficiency for the different target locations were minimised by changing the position of the four targets on their support about every two weeks. The relative neutrino fluxes on the targets were monitored within the same experiment using charged-current interactions in the calorimeter positioned directly downstream of the four targets. From a fit to the Z/A dependence of the total cross-sections a value is deduced for the effective neutron-to-proton cross-section ratio.

  3. Analýza a hodnocení rizik veřejného vodovodu

    OpenAIRE

    Novotná, Aneta

    2015-01-01

    Diplomová práce je zaměřena na identifikaci, kvantifikaci a hodnocení rizik při dodávce pitné vody, aplikací vhodných metod na konkrétním veřejném vodovodu, jeho prostředí a provozování. Je vybrána metoda WaterRisk a z ČSN EN 31010 Management rizik - Techniky posuzování rizik jsou vybrány metody - analýza možných vad a jejich důsledků (FMEA), Paretův diagram a Ishikawa diagram. Cílem diplomové práce je analyzovat a posoudit kvalitativní, environmentální a bezpečnostní rizika pro systém veřejn...

  4. Influence of Refiner in ZA-12 Alloys During Centrifugal Casting Process

    Science.gov (United States)

    Jyothi, P. N.; Shailesh, Rao A.; Jagath, M. C.; Channakeshavalu, K.

    2014-05-01

    The behavior of the molten melt plays a predominant role in determining the quality cast product. In continuous casting, addition of refiner 1% (Al+Ti+B2) onto the molten metal increases its mechanical properties as a result of the nucleation within the process. In this article, the effect of refiners in the centrifugal casting process was studied. Eutectic ZA-12 alloys were taken for our experiment and cast at various rotational speeds (400 rpm, 600 rpm, and 800 rpm) with and without the addition of refiners. Rather than increase in the solidification rate as in continuous casting, these refiners diminish the solidification rate, which in turn forms an irregular-shaped cast tube. The microstructure and hardness for the entire cast specimen were discussed finally.

  5. Effect of Rectangle Wave Pulse Current on Solidification Structure of ZA27 Alloy

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    The effect of rectangle wave pulse current on solidification structure of ZA27 alloy was studied.The results show that the wave pattern relies on the frequency range of harmonic wave and the energy of pulse current within the frequency range of pulse current.Imposed pulse current could induce the solidification system to oscillate.The frequency range and the relevant energy distribution of pulse current exert an influence on the amount of atoms involved for forming critical nucleus, the surface states of clusters in melt, the oscillating state of melt on the surface of clusters, the active energy of atom diffusion , the frequnce response of the resonance of bulk melt and the absorbability of the solidification system to the external work.Rectangle wave pulse current involves rich harmonic waves; the amplitudes of high order of harmonic waves are higher and reduce slowly, so it has a better effect on inoculation and modification.

  6. Negative creep during compressive creep of as-cast ZA27 alloy

    Institute of Scientific and Technical Information of China (English)

    魏晓伟; 沈保罗; 易勇

    2003-01-01

    The negative creep during compressive creep deformation of as-cast ZA27 alloy was investigated at the temperature range of 20-160℃ and at compressive stress levels from 50-137.5MPa with special apparatus. Results show that the negative creep in the alloy occurred respectively at 20℃ (50MPa, 87.5MPa and 100MPa), 60℃(50MPa and 87.5MPa) and 100℃(50MPa). According to the phase transformation and theoretical analysis, the negative creep resulted from volume expansion caused by four-phase transformation α+ε→T′+η in the alloy. The theoretical analysis is consistent with the experiment results. And the values of negative creep depended on the difference between the compressive creep deformation and the volume expansion.

  7. Riziková analýza na vybrané lokalitě toku Dyje

    OpenAIRE

    2012-01-01

    Předmětem práce "Riziková analýza na vybraném toku Dyje" je zpracování rizikové analýzy na vybrané lokalitě toku Dyje. Na základě dostupných podkladů v souladu se směrnicí 2007/60/ES, vypracování map nebezpečí, map ohrožení a map rizik pro průtoky Q5, Q20 a Q100. Práce byla zpracována v programu GIS. The subject of the bachelor thesis "Risk flood analysis" is the processing risk flood analysis on the selected location Thaya flow. Flood Hazard Maps, Flood Danger Maps and Flood Risk Maps for...

  8. Dijagnostičke metode za rano otkrivanje osteoporoze u stomatologiji

    OpenAIRE

    Knezović Zlatarić, Dubravka; Pandurić, Josip; Koršić, Mirko; Dodig, Damir

    2007-01-01

    Osteoporoza, široko rasprostanjena i učestala koštana bolest odmakle životne dobi, obilježena je gubitkom koštane mase i dotrajalošću mikroarhitekture koštanoga tkiva, uz posljedično slabljenje tvrde koštane strukture te povećanje rizika pojave prijeloma. U radu su navedeni sistemski i lokalni čimbenici odgovorni za gubitak koštanoga tkiva čeljusti. Najčešći sistemski čimbenici povezani s gubitkom koštane mase čeljusti, su osteoporoza, bubrežne bolesti, hormonski poremećaji, prehrana, ali i u...

  9. Electronic Properties of LiFePO4 and Li doped LiFePO4

    Energy Technology Data Exchange (ETDEWEB)

    Allen, J.L.; Zhuang, G.V.; Ross, P.N.; Guo, J.-H.; Jow, T.R.

    2006-05-31

    LiFePO{sub 4} has several potential advantages in comparison to the transition metal oxide cathode materials used in commercial lithium-ion batteries. However, its low intrinsic electronic conductivity ({approx} 10{sup -9} S/cm) is problematic. We report here a study by soft x-ray absorption/emission spectroscopy of the electronic properties of undoped LiFePO{sub 4} and Li-doped LiFePO{sub 4} in which Li{sup +} ions are substituted for Fe{sup 2+} ions in an attempt to increase the intrinsic electronic conductivity. The conductivities of the Li{sub 1+x}Fe{sub 1-x}PO{sub 4} samples were, however, essentially unchanged from that of the undoped LiFePO{sub 4}. Nonetheless, evidence for changing the electronic properties of LiFePO{sub 4} by doping with excess Li+ was observed by the XAS/XES spectroscopy. New pre-edge features the O-1s XAS spectrum of Li{sub 1.05}Fe{sub 0.95}PO4 is a direct indication that the charge compensation for substitution of Fe{sup 2+} by Li{sup +} resides in the unoccupied O-2p orbitals. A charge transfer (CT) excitation was also observed in the doped material implying that the unoccupied O-2p orbitals created by doping are strongly hybridized with unoccupied Fe-3d orbitals of neighboring sites. However, the strong covalent bonding within the (PO{sub 4}){sup 3-} anions and the large separation of the Fe cations means that the charge created by doping is not delocalized in the manner of electrons or holes in a semiconductor.

  10. A PoE (Power over Ethernet) Switching Power%PoE开关电源

    Institute of Scientific and Technical Information of China (English)

    王智剑; 杨宇航

    2005-01-01

    文中对IEEE802.3af标准做介绍,阐述符合该标准的PoE开关电源的设计方案及其实现.尽管该电源专门设计用于VoIP电话,但其本质上具有一般性,只需简单的调整即可用于其它的PoE应用.

  11. Facile Synthesis of Carbon-Coated Spinel Li4Ti5O12/Rutile-TiO2 Composites as an Improved Anode Material in Full Lithium-Ion Batteries with LiFePO4@N-Doped Carbon Cathode.

    Science.gov (United States)

    Wang, Ping; Zhang, Geng; Cheng, Jian; You, Ya; Li, Yong-Ke; Ding, Cong; Gu, Jiang-Jiang; Zheng, Xin-Sheng; Zhang, Chao-Feng; Cao, Fei-Fei

    2017-02-22

    The spinel Li4Ti5O12/rutile-TiO2@carbon (LTO-RTO@C) composites were fabricated via a hydrothermal method combined with calcination treatment employing glucose as carbon source. The carbon coating layer and the in situ formed rutile-TiO2 can effectively enhance the electric conductivity and provide quick Li(+) diffusion pathways for Li4Ti5O12. When used as an anode material for lithium-ion batteries, the rate capability and cycling stability of LTO-RTO@C composites were improved in comparison with those of pure Li4Ti5O12 or Li4Ti5O12/rutile-TiO2. Moreover, the potential of approximately 1.8 V rechargeable full lithium-ion batteries has been achieved by utilizing an LTO-RTO@C anode and a LiFePO4@N-doped carbon cathode.

  12. Facility Microgrids

    Energy Technology Data Exchange (ETDEWEB)

    Ye, Z.; Walling, R.; Miller, N.; Du, P.; Nelson, K.

    2005-05-01

    Microgrids are receiving a considerable interest from the power industry, partly because their business and technical structure shows promise as a means of taking full advantage of distributed generation. This report investigates three issues associated with facility microgrids: (1) Multiple-distributed generation facility microgrids' unintentional islanding protection, (2) Facility microgrids' response to bulk grid disturbances, and (3) Facility microgrids' intentional islanding.

  13. Physical Oceanography Distributed Active Archive Center (PO.DAAC)

    Data.gov (United States)

    National Aeronautics and Space Administration — PO.DAAC is an element of the Earth Observing System Data Information System (EOSDIS). PO.DAAC's primary responsibility is to provide distribution and archive support...

  14. Eksplozivne materije za neosetljiva ubojna sredstva / Explosive substances for insensitive munitions

    Directory of Open Access Journals (Sweden)

    Radun Jeremić

    2005-03-01

    Full Text Available U skladu sa sve strožim zahtevima za očuvanje životne sredine i većom bezbednošću, tendencije u razvoju suvremenih ubojnih sredstava (UbS, pored povećanja pouzdanosti i efikasnosti, usmerene su i na povećanje sigurnosti pri njihovoj proizvodnji, skladištenju, manipulaciji i upotrebi. Na taj način dobijena je nova kategorija UbS, tzv. neosetljiva UbS, kod kojih je verovatnoća neželjenog aktiviranja pod dejstvom spoljnih impulsa svedena na minimum. Suština rešavanja ovog problema je primena eksplozivnih materija koje su mnogo manje osetljive na spoljne uticaje u odnosu na standardne. Osnovni zahtev koji se pri tome postavlja je da taktičko-tehničke karakteristike ostanu na nivou ili budu bolje u odnosu na postojeća UbS. U radu je ukratko objašnjen koncept razvoja neosetljivih UbS i dat pregled najznačajnijih rezultata istraživanja u oblasti eksplozivnih materija koje zadovoljavaju zahteve za primenu u neosetljivim UbS. / According to severe environment protection and safety requirements, tendencies in development of modern munitions, besides of increasing reliability and efficiency, are directed to decreasing of danger during their processing, storing, handling and operating. In that manner the new category of munitions has been obtained, named insensitive munitions, with a minimum probability of unplanned activating. The best method for solving this problem is using of explosive substances that are more insensitive according to standard ones. The main requirement is the tactical and technical characteristics stay at the level or to be better according to the existing munitions. In this paper the developing concept of insensitive munitions is shortly explained and presented a review of most important research results of explosive materials that fulfill requirements for applying in insensitive munitions.

  15. Preparation and Characterization of Highly Efficient and Stable Visible-Light-Responsive Photocatalyst AgBr/Ag3PO4

    Directory of Open Access Journals (Sweden)

    Zhang Jinfeng

    2013-01-01

    Full Text Available AgBr/Ag3PO4 photocatalyst was synthesized using a facile coprecipitation method. The photocatalyst was characterized by X-ray powder diffraction (XRD, UV-Vis diffuse reflectance spectroscopy (DRS, scanning electron microscopy (SEM, Brunauer-Emmett-Teller (BET surface areas, and photoluminescence (PL technique. The activity of the photocatalyst was evaluated by the degradation of methyl orange (MO and rhodamine B (RhB. The results showed that the prepared AgBr/Ag3PO4 exhibited excellent performance and much higher photocatalytic activity than the single one under visible-light irradiation. The optimum mole ratio of Br/P in AgBr/Ag3PO4 samples is 0.3. The prepared AgBr/Ag3PO4 photocatalyst was transformed to Ag/AgBr/Ag3PO4 system with excellent property and good stability in the photocatalytic process. The possible mechanisms of the enhanced photocatalytic activity for the AgBr/Ag3PO4 were also discussed in detail.

  16. Tailored surface structure of LiFePO4/C nanofibers by phosphidation and their electrochemical superiority for lithium rechargeable batteries.

    Science.gov (United States)

    Lee, Yoon Cheol; Han, Dong-Wook; Park, Mihui; Jo, Mi Ru; Kang, Seung Ho; Lee, Ju Kyung; Kang, Yong-Mook

    2014-06-25

    We offer a brand new strategy for enhancing Li ion transport at the surface of LiFePO4/C nanofibers through noble Li ion conducting pathways built along reduced carbon webs by phosphorus. Pristine LiFePO4/C nanofibers composed of 1-dimensional (1D) LiFePO4 nanofibers with thick carbon coating layers on the surfaces of the nanofibers were prepared by the electrospinning technique. These dense and thick carbon layers prevented not only electrolyte penetration into the inner LiFePO4 nanofibers but also facile Li ion transport at the electrode/electrolyte interface. In contrast, the existing strong interactions between the carbon and oxygen atoms on the surface of the pristine LiFePO4/C nanofibers were weakened or partly broken by the adhesion of phosphorus, thereby improving Li ion migration through the thick carbon layers on the surfaces of the LiFePO4 nanofibers. As a result, the phosphidated LiFePO4/C nanofibers have a higher initial discharge capacity and a greatly improved rate capability when compared with pristine LiFePO4/C nanofibers. Our findings of high Li ion transport induced by phosphidation can be widely applied to other carbon-coated electrode materials.

  17. Carbon gel assisted low temperature liquid-phase synthesis of C-LiFePO4/graphene layers with high rate and cycle performances

    Science.gov (United States)

    Tang, Hongwei; Si, Yanli; Chang, Kun; Fu, Xiaoning; li, Bao; Shangguan, Enbo; Chang, Zhaorong; Yuan, Xiao-Zi; Wang, Haijiang

    2015-11-01

    Nano-scale LiFePO4/graphene oxide (GO) as cathode materials for lithium ion batteries has been successfully synthesized via a one-step carbon gel assisted liquid-phase approach at a low-temperature (108 °C) and normal pressure. C-LiFePO4/graphene layers (G) composites, composed of LiFePO4, amorphous carbon and graphene layers, are then produced after rapid high temperature carbon treatment. Interface tunnel effect, produced by the intimate contact of LiFePO4 particles with amorphous carbon and graphene layers, greatly improves the properties of the composites. Electrochemical tests indicate that the optimal amount of GO addition is 1 wt.% in terms of achieving a high electrochemical performance of the C-LiFePO4/G composites. Discharge capacity of the C-LiFePO4/G composites is 160.0 mAh g-1 at 0.2 C. When the current rate is further increased to 60 C, the discharge capacity of C-LiFePO4/G can reach 68 mAh g-1. At a high current rate of 20 C, the capacity attenuation rate of the C-LiFePO4/G electrode is only 9.6% after 200 cycles, showing excellent high-rate discharge capability and cycle performance. This is achieved under a facile synthesis condition of a simple procedure, low temperature, and normal pressure.

  18. Canonical discrimination of the effect of a new broiler production facility on soil chemical profiles as related to current management practices.

    Directory of Open Access Journals (Sweden)

    Cynthia L Sheffield

    Full Text Available The effect dirt-floored broiler houses have on the underlying native soil, and the potential for contamination of the ground water by leaching under the foundation, is an understudied area. This study examines alterations in fifteen quantitative soil parameters (Ca, Cu, electrical conductivity, Fe, K, Mg, Mn, Na, NO3, organic matter, P, pH, S, soil moisture and Zn in the underlayment of a newly constructed dirt-floored broiler house over the first two years of production (Native through Flock 11. The experiment was conducted near NW Robertson County, Texas, where the native soil is a fine, smectitic thermic Udertic Paleustalfs and the slopes range from zero to three percent. Multiple samples were collected from under each of three water and three feed lines the length of the house, in a longitudinal study during February 2008 through August 2010. To better define the relationship between the soil parameters and sampling times, a canonical discriminant analysis approach was used. The soil profiles assembled into five distinctive clusters corresponding to time and management practices. Results of this work revealed that the majority of parameters increased over time. The management practices of partial and total house clean-outs markedly altered soil profiles the house underlayment, thus reducing the risk of infiltration into the ground water near the farm. This is important as most broiler farms consist of several houses within a small area, so the cumulative ecological impact could be substantial if not properly managed.

  19. Canonical discrimination of the effect of a new broiler production facility on soil chemical profiles as related to current management practices.

    Science.gov (United States)

    Sheffield, Cynthia L; Crippen, Tawni L; Byrd, J Allen; Beier, Ross C; Yeater, Kathleen

    2015-01-01

    The effect dirt-floored broiler houses have on the underlying native soil, and the potential for contamination of the ground water by leaching under the foundation, is an understudied area. This study examines alterations in fifteen quantitative soil parameters (Ca, Cu, electrical conductivity, Fe, K, Mg, Mn, Na, NO3, organic matter, P, pH, S, soil moisture and Zn) in the underlayment of a newly constructed dirt-floored broiler house over the first two years of production (Native through Flock 11). The experiment was conducted near NW Robertson County, Texas, where the native soil is a fine, smectitic thermic Udertic Paleustalfs and the slopes range from zero to three percent. Multiple samples were collected from under each of three water and three feed lines the length of the house, in a longitudinal study during February 2008 through August 2010. To better define the relationship between the soil parameters and sampling times, a canonical discriminant analysis approach was used. The soil profiles assembled into five distinctive clusters corresponding to time and management practices. Results of this work revealed that the majority of parameters increased over time. The management practices of partial and total house clean-outs markedly altered soil profiles the house underlayment, thus reducing the risk of infiltration into the ground water near the farm. This is important as most broiler farms consist of several houses within a small area, so the cumulative ecological impact could be substantial if not properly managed.

  20. Informatique et poésie

    OpenAIRE

    Vuillemin, Alain

    1995-01-01

    Sommaire du numéro :http://archive-edutice.ccsd.cnrs.fr/edutice-00000865; Un écran s'allume, des caractères jaillissent, des lettres surgissent, des mots scintillent, des phrases s'animent, des vers s'assemblent, des formes s'élaborent, des symboles prennent vie, un sens naît. Une sorte de miracle paraît s'être produit : un texte s'est construit, un souffle a passé, un poème s'est « généré ». Un acte de création poétique a eu lieu grâce à l'aide d'un ordinateur. Deux revues, Alire depuis 1989...

  1. Aspects on the analysis of 210Po

    DEFF Research Database (Denmark)

    Henricsson, F.; Ranebo, Y.; Holm, E.

    2011-01-01

    will be too low. Both these systematic errors give rise to a too high 210Po/210Pb ratio. The fraction of 210Pb which is plating out has been assessed in this study for different matrices and is about 50–90%. During the measurement by solid state Si-detectors, some Po is evaporated in the vacuum conditions......-ashing by the use of a double-tracer technique. We have found that the losses were about 30% when open glass beakers were used and about 17% when the samples were digested in microwave oven. When long-necked bottles (Kjeldahl flasks) were used, a loss of about 20% was registered. It has also been observed that 210...

  2. The BiPo-3 detector.

    Science.gov (United States)

    Loaiza, P; Barabash, A S; Basharina-Freshville, A; Birdsall, E; Blondel, S; Blot, S; Bongrand, M; Boursette, D; Brudanin, V; Busto, J; Caffrey, A J; Calvez, S; Cascella, M; Cerna, C; Chauveau, E; Chopra, A; Capua, S De; Duchesneau, D; Durand, D; Egorov, V; Eurin, G; Evans, J J; Fajt, L; Filosofov, D; Flack, R; Garrido, X; Gómez, H; Guillon, B; Guzowski, P; Holý, K; Hodák, R; Huber, A; Hugon, C; Jeremie, A; Jullian, S; Kauer, M; Klimenko, A; Kochetov, O; Konovalov, S I; Kovalenko, V; Lang, K; Lemière, Y; Noblet, T Le; Liptak, Z; Liu, X R; Lutter, G; Macko, M; Mamedov, F; Marquet, C; Mauger, F; Morgan, B; Mott, J; Nemchenok, I; Nomachi, M; Nova, F; Ohsumi, H; Oliviéro, G; Pahlka, R B; Pater, J; Perrot, F; Piquemal, F; Povinec, P; Přidal, P; Ramachers, Y A; Remoto, A; Richards, B; Riddle, C L; Rukhadze, E; Saakyan, R; Sarazin, X; Shitov, Yu; Simard, L; Šimkovic, F; Smetana, A; Smolek, K; Smolnikov, A; Söldner-Rembold, S; Soulé, B; Štekl, I; Thomas, J; Timkin, V; Torre, S; Tretyak, Vl I; Tretyak, V I; Umatov, V I; Vilela, C; Vorobel, V; Waters, D; Žukauskas, A

    2017-05-01

    The BiPo-3 detector is a low radioactive detector dedicated to measuring ultra-low natural contaminations of (208)Tl and (214)Bi in thin materials, initially developed to measure the radiopurity of the double β decay source foils of the SuperNEMO experiment at the μBq/kg level. The BiPo-3 technique consists in installing the foil of interest between two thin ultra-radiopure scintillators coupled to low radioactive photomultipliers. The design and performances of the detector are presented. In this paper, the final results of the (208)Tl and (214)Bi activity measurements of the first enriched (82)Se foils are reported for the first time, showing the capability of the detector to reach sensitivities in the range of some μBq/kg. Copyright © 2017 Elsevier Ltd. All rights reserved.

  3. PROOF on the Cloud for ALICE using PoD and OpenNebula

    Science.gov (United States)

    Berzano, D.; Bagnasco, S.; Brunetti, R.; Lusso, S.

    2012-06-01

    In order to optimize the use and management of computing centres, their conversion to cloud facilities is becoming increasingly popular. In a medium to large cloud facility, many different virtual clusters may concur for the same resources: unused resources can be freed either by turning off idle virtual machines, or by lowering resources assigned to a virtual machine at runtime. PROOF, a ROOT-based parallel and interactive analysis framework, is officially endorsed in the computing model of the ALICE experiment as complementary to the Grid, and it has become very popular over the last three years. The locality of PROOF-based analysis facilities forces system administrators to scavenge resources, yet the chaotic nature of user analysis tasks deems them unstable and inconstantly used, making PROOF a typical use-case for HPC cloud computing. Currently, PoD dynamically and easily provides a PROOF-enabled cluster by submitting agents to a job scheduler. Unfortunately, a Tier-2 does not comfortably share the same queue between interactive and batch jobs, due to the very large average time to completion of the latter: an elastic cloud approach would enable interactive virtual machines to temporarily subtract resources to the batch ones, without a noticeable impact on them. In this work we describe our setup of a dynamic PROOF-based cloud analysis facility based on PoD and OpenNebula, orchestrated by a simple and lightweight control daemon that makes virtualization transparent for the user.

  4. Peak Discharge, Flood Profile, Flood Inundation, and Debris Movement Accompanying the Failure of the Upper Reservoir at the Taum Sauk Pump Storage Facility near Lesterville, Missouri

    Science.gov (United States)

    Rydlund, Jr., Paul H.

    2006-01-01

    The Taum Sauk pump-storage hydroelectric power plant located in Reynolds County, Missouri, uses turbines that operate as pumps and hydraulic head generated by discharging water from an upper to a lower reservoir to produce electricity. A 55-acre upper reservoir with a 1.5- billion gallon capacity was built on top of Proffit Mountain, approximately 760 feet above the floodplain of the East Fork Black River. At approximately 5:16 am on December 14, 2005, a 680-foot wide section of the upper reservoir embankment failed suddenly, sending water rushing down the western side of Proffit Mountain and emptying into the floodplain of East Fork Black River. Flood waters from the upper reservoir flowed downstream through Johnson's Shut-Ins State Park and into the lower reservoir of the East Fork Black River. Floods such as this present unique challenges and opportunities to analyze and document peak-flow characteristics, flood profiles, inundation extents, and debris movement. On December 16, 2005, Light Detection and Ranging (LiDAR) data were collected and used to support hydraulic analyses, forensic failure analyses, damage extent, and mitigation of future disasters. To evaluate the impact of sedimentation in the lower reservoir, a bathymetric survey conducted on December 22 and 23, 2005, was compared to a previous bathymetric survey conducted in April, 2005. Survey results indicated the maximum reservoir capacity difference of 147 acre-feet existed at a pool elevation of 730 feet. Peak discharge estimates of 289,000 cubic feet per second along Proffit Mountain and 95,000 cubic feet per second along the East Fork Black River were determined through indirect measurement techniques. The magnitude of the embankment failure flood along the East Fork Black River was approximately 4 times greater than the 100-year flood frequency estimate of 21,900 cubic feet per second, and approximately 3 times greater than the 500-year flood frequency estimate of 30,500 cubic feet per second

  5. Analysis on the Wearability of ZA13 Casting Tubes and Liquid Extrusion%锌基合金ZA13铸造管和液态挤压管的耐磨性分析

    Institute of Scientific and Technical Information of China (English)

    蒋俊如

    2014-01-01

    本文阐述锌基合金 ZA13的铸造管和液态挤压管工艺,使用显微镜给出两种管件金相显微组织图片,应用 M200磨损机分别检测两种管件磨损量,从显微组织和磨损数据分析两种工艺导致金相组织和耐磨性差异的原因,提出液体挤压管比铸造管具有更好耐磨性的结论。%This paper elaborates on casting technology and liquid extrusion technology of ZA13 ( ZnAL13-2 ) tubes , analyses the tube microstructure and carries out the wearing tests . It is identified that the wearability of liquid extrusion tubes is more than that of casting tubes based on the comparison of the casting tube and liquid extrusion tube of ZA13 .

  6. Primena sistema za monitoring buke i MatLab-a za proračun nivoa avionske buke / Noise monitoring system and MatLab application for aircraft noise level calculation

    Directory of Open Access Journals (Sweden)

    Milorad Pavlović

    2007-07-01

    Full Text Available U radu je prikazan način primene sistema za monitoring buke, terminal NMT 3637B i softver 7802, firme Brüel & Kjær, u procesu sertifikacije mlaznih aviona, prema ICAO, standardu Annex 16 i algoritam za proračun EPNL nivoa buke (Effective Perceived Noise Level, koji je kreiran u okruženju MatLab. Ovim softverom sublimirani su svi potrebni ulazni podaci, akustički i neakustički, radi dobijanja traženog nivoa i svih međurezultata neophodnih za formiranje konačnog izveštaja koji se dostavlja vazduhoplovnim vlastima. / This paper presents the use of noise monitoring system, terminal NMT 3637B and software 7802, Brüel & Kjær in process of jet aircraft noise certification according to standard ICAO Annex 16 and the algoritam for calculating EPNL noise level (Effective Perceived Noise Level that we created in MatLab environment. This software sublimated all necessary input parameters, acoustic and non acoustic in purpose of getting final result and intermediate data. Those data are important for reporting to the certificating authority.

  7. Prevalence of enterobacteriaceae in Tupinambis merianae (Squamata: Teiidae from a captive facility in Central Brazil, with a profile of antimicrobial drug resistance in Salmonella enterica

    Directory of Open Access Journals (Sweden)

    Andréa de Moraes Carvalho

    2013-06-01

    Full Text Available The present study reports the presence of enterobacteriaceae in Tegu Lizards (Tupinambis merianaefrom a captive facility in central Brazil. From a total of 30 animals, 10 juveniles and 20 adults (10 males, 10 females, 60 samples were collected, in two periods separated by 15 days. The samples were cultivated in Xylose-lysine-deoxycholate agar (XLT4 and MacConkey agar. The Salmonella enterica were tested for antimicrobial susceptibility. A total of 78 bacteria was isolated, of wich 27 were from juveniles of T. merianae, 30 from adult males and 21 from adult females. Salmonella enterica was the most frequent bacteria followed by Citrobacter freundii, Escherichia coli, Enterobacter sakasakii, Kluivera sp., Citrobacter amalonaticus, Serratia marcescens, Citrobacter diversus, Yersinia frederiksenii, Serratia odorifera, and Serratia liquefaciens. Salmonella enterica subsp. diarizonae and houtenae showed resistance to cotrimoxazole, and serum Salmonella enterica Worthington showed resistance to tetracycline and gentamicin. Salmonella enterica Panama and S. enterica subsp. diarizonae showed intermediate sensitivity to cotrimoxazole. In addition to Enterobacteriaceae in the Tegu lizard, pathogenic serotypes of S. enterica also occur, and their antimicrobial resistance was confirmed.

  8. Using phenotype microarrays in the assessment of the antibiotic susceptibility profile of bacteria isolated from wastewater in on-site treatment facilities.

    Science.gov (United States)

    Jałowiecki, Łukasz; Chojniak, Joanna; Dorgeloh, Elmar; Hegedusova, Berta; Ejhed, Helene; Magnér, Jörgen; Płaza, Grażyna

    2017-04-27

    The scope of the study was to apply Phenotype Biolog MicroArray (PM) technology to test the antibiotic sensitivity of the bacterial strains isolated from on-site wastewater treatment facilities. In the first step of the study, the percentage values of resistant bacteria from total heterotrophic bacteria growing on solid media supplemented with various antibiotics were determined. In the untreated wastewater, the average shares of kanamycin-, streptomycin-, and tetracycline-resistant bacteria were 53, 56, and 42%, respectively. Meanwhile, the shares of kanamycin-, streptomycin-, and tetracycline-resistant bacteria in the treated wastewater were 39, 33, and 29%, respectively. To evaluate the antibiotic susceptibility of the bacteria present in the wastewater, using the phenotype microarrays (PMs), the most common isolates from the treated wastewater were chosen: Serratia marcescens ss marcescens, Pseudomonas fluorescens, Stenotrophomonas maltophilia, Stenotrophomonas rhizophila, Microbacterium flavescens, Alcaligenes faecalis ss faecalis, Flavobacterium hydatis, Variovorax paradoxus, Acinetobacter johnsonii, and Aeromonas bestiarum. The strains were classified as multi-antibiotic-resistant bacteria. Most of them were resistant to more than 30 antibiotics from various chemical classes. Phenotype microarrays could be successfully used as an additional tool for evaluation of the multi-antibiotic resistance of environmental bacteria and in preliminary determination of the range of inhibition concentration.

  9. Wear Characteristics of Hybrid Composites Based on Za27 Alloy Reinforced With Silicon Carbide and Graphite Particles

    Directory of Open Access Journals (Sweden)

    S. Mitrović

    2014-06-01

    Full Text Available The paper presents the wear characteristics of a hybrid composite based on zinc-aluminium ZA27 alloy, reinforced with silicon-carbide and graphite particles. The tested sample contains 5 vol.% of SiC and 3 vol.% Gr particles. Compocasting technique has been used to prepare the samples. The experiments were performed on a “block-on-disc” tribometer under conditions of dry sliding. The wear volumes of the alloy and the composite were determined by varying the normal loads and sliding speeds. The paper contains the procedure for preparation of sample composites and microstructure of the composite material and the base ZA27 alloy. The wear surface of the composite material was examined using the scanning electronic microscope (SEM and energy dispersive spectrometry (EDS. Conclusions were obtained based on the observed impact of the sliding speed, normal load and sliding distance on tribological behaviour of the observed composite.

  10. Protéza hornej končatiny a jej vliv vplyv na psychický stav pacienta

    OpenAIRE

    2015-01-01

    Bakalárska práca sa zaoberá tvorbou myoelektrickej protézy hornej končatiny a jej vplyvom na psychický stav pacienta. Vznikla za spolupráce s firmou OTTOBOCK SLOVAKIA s.r.o, kde som túto bakalársku prácu konzultovala. Z firmou ponúkaných výrobkov som si vybrala Greifer, ktorého redesign som sa rozhodla navrhnúť. Je to doplnková protéza, určená jednak na jemnú prácu s malými predmetmi, jednak na ťažšiu prácu vyžadujúcu pevný úchop. Navrhovala som s ohľadom na ergonomické, funkčné a estetické p...

  11. Investigation of sodium insertion-extraction in olivine NaxFePO4 (0 ≤x≤ 1) using first-principles calculations.

    Science.gov (United States)

    Saracibar, A; Carrasco, J; Saurel, D; Galceran, M; Acebedo, B; Anne, H; Lepoitevin, M; Rojo, T; Casas Cabanas, M

    2016-05-14

    Olivine NaFePO4 has recently attracted the attention of the scientific community as a promising cathode material for Na-ion batteries. In this work we combine density functional theory (DFT) calculations and high resolution synchrotron X-ray diffraction (HRXRD) experiments to study the phase stability of NaxFePO4 along the whole range of sodium compositions (0 ≤x≤ 1). DFT calculations reveal the existence of two intermediate structures governing the phase stability at x = 2/3 and x = 5/6. This is in contrast to isostructural LiFePO4, which is a broadly used cathode in Li-ion batteries. Na2/3FePO4 and Na5/6FePO4 ground states both align vacancies diagonally within the ab plane, coupled to a Fe(2+)/Fe(3+) alignment. HRXRD data for NaxFePO4 (2/3 < x < 1) materials show common superstructure reflections up to x = 5/6 within the studied compositions. The computed intercalation voltage profile shows a voltage difference of 0.16 V between NaFePO4 and Na2/3FePO4 in agreement with the voltage discontinuity observed experimentally during electrochemical insertion.

  12. Exploring the Potentials of Lysinibacillus sphaericus ZA9 for Plant Growth Promotion and Biocontrol Activities against Phytopathogenic Fungi

    Directory of Open Access Journals (Sweden)

    Zakira Naureen

    2017-08-01

    Full Text Available There is an ongoing hunt for biologically active compounds that can combat phytopathogenic fungi and improve plant growth without causing any hazards to the environment. Consequently the present study aims at deciphering the plant growth promotion and antifungal capability of Lysinibacillus sphaericus ZA9. The bacterium was previously isolated and identified in our laboratory from maize rhizosphere using 16S rRNA gene sequencing. The test bacterium L. sphaericus ZA9 was found to produce high quantity of IAA (697 μg/ mL; siderophores (195.79 μg/ mL, HCN and hydrolytic enzyme as compared to the reference strain Bacillus sphaericus Z2-7. The bacterium was also capable of solubilizing silicates (Si, phosphates (P, and potassium (K. The bacterium enhanced the seedling vigor and germination of seeds pretreated with it and promoted the shoot length of both cucumber and tomato seeds in greenhouse experiment. L. sphaericus ZA9 and its cell free culture supernatant showed varied antagonistic behavior against Alternaria alternata, Curvularia lunata, Aspergillus sp., Sclerotinia sp., Bipolaris spicifera, Trichophyton sp. Fermentation broth culture of L. sphaericus ZA9 was then used to isolate antifungal metabolites by silica column chromatography. Identification and determination of antifungal compounds was carried out by Thin-layer chromatography (TLC followed by NMR spectroscopy. Two compounds were isolated and identified as 2-pentyl-4-quinolinecarboxylic acid (C15H17NO2 which is a quinoline alkaloid and 1- methylcyclohexene which is a cycloalkene. Compound 1; 2-Penthyl-4-quinolinecarboxylic acid was found to be highly antagonistic against most of the fungi tested as compared to the bacterium itself. Its activity was comparable to that of fungicide Benlate, while compound 2; 1- methylcyclohexene did not show any antifungal activity.

  13. Phosphorus-bearing molecules in solar-type star forming regions: First PO detection

    CERN Document Server

    Lefloch, B; Viti, S; Jimenez-Serra, I; Codella, C; Podio, L; Ceccarelli, C; Mendoza, E; Lepine, J R D; Bachiller, R

    2016-01-01

    As part of the Large Program ASAI (Astrochemical Surveys At IRAM), we have used the IRAM 30m telescope to lead a systematic search for the emission of rotational transitions of P-bearing species between 80 and 350 GHz towards L1157-B1, a shock position in the solar-type star forming region L1157. We report the detection of several transitions of PN and, for the first time, of prebiotic molecule PO. None of these species are detected towards the driving protostar of the outflow L1157-mm. Analysis of the line profiles shows that PN arises from the outflow cavity, where SiO, a strong shock tracer, is produced. Radiative transfer analysis yields an abundance of 2.5e-9 and 0.9e-9 for PO and PN, respectively. These results imply a strong depletion (approx 100) of Phosphorus in the quiescent cloud gas. Shock modelling shows that atomic N plays a major role in the chemistry of PO and PN. The relative abundance of PO and PN brings constraints both on the duration of the pre-shock phase, which has to be about 1 Myr, an...

  14. Distribution of {sup 210}Pb and {sup 210}Po in boreal forest soil

    Energy Technology Data Exchange (ETDEWEB)

    Vaaramaa, Kaisa, E-mail: kaisa.vaaramaa@stuk.fi [Laboratory of Radiochemistry, Department of Chemistry, P.O. Box 55, FIN-00014 University of Helsinki (Finland); Aro, Lasse [Finnish Forest Research Institute (METLA), Parkano Research Unit, Kaironiementie 54, 39700 Parkano (Finland); Solatie, Dina [STUK-Radiation and Nuclear Safety Authority, Regional Laboratory in Northern Finland, Laehteentie 2, 96400 Rovaniemi (Finland); Lehto, Jukka [Laboratory of Radiochemistry, Department of Chemistry, P.O. Box 55, FIN-00014 University of Helsinki (Finland)

    2010-11-15

    Vertical distribution and activity contents of {sup 210}Pb and {sup 210}Po were investigated in forest soils of Scots pine-dominated (Pinus sylvestris L.) stands from seven different locations in Finland. The mean total inventory in the soil profile, up to 20 cm, of {sup 210}Pb was 4.0 kBq m{sup -2} (range 3.1-5.0 kBq m{sup -2}) and {sup 210}Po 5.5 kBq m{sup -2} (range 4.0-7.4 kBq m{sup -2}), the organic soil layer containing 45% of the total inventory of both nuclides. In both the organic and the mineral layers the {sup 210}Po/{sup 210}Pb ratio was close to unity indicating a radioactive equilibrium between them. In the litter layer there was, however, a clear excess of {sup 210}Po suggesting that polonium is recycled via root uptake from the root zone to the ground surface. The activity concentration (Bq kg{sup -1}) of {sup 210}Pb clearly correlated with organic matter and the Fe, Al and Mn concentrations in soil indicating that radioactive lead is associated both with humic substances and the oxides of iron, aluminium and manganese. Radioactive lead was also seen to follow the behavior of stable lead. No systematic correlation between polonium and soil properties was seen.

  15. Primena programskog paketa MATLAB pri simulaciji rada sistema za prenos snage / MATLAB software application for power transmission simulation

    Directory of Open Access Journals (Sweden)

    Milan Krsmanović

    2008-01-01

    Full Text Available Rad se odnosi na veoma savremenu problematiku primene programskog paketa MATLAB za simulaciju rada sklopova transmisije motornih vozila. Osnovni cilj je doprinos razvoju procesa projektovanja sklopova transmisije za motorna vozila putem integracije različitih metoda i postupaka, kojima se mogu obuhvatiti faktori koji određuju proces prenosa i transformacije parametara snage (obrtnog momenta i ugaone brzine. Posebna pažnja posvećena je simulaciji rada glavne frikcione spojnice u slučaju polaska vozila iz mesta. U okviru toga detaljno je prikazan način formiranja simulacionog modela frikcione spojnice sa prikazom razvijenog matematičkog modela kao osnove za formiranje simulacionog modela. / This paper refers to modern problems in using the MATLAB program package for the simulation of motor vehicle transmission functions. The main goal is to contribute to the development of the process of motor vehicle transmission design by combining different methods and procedures comprising factors which determine the transmission process and the power parameters transformations (torque and angle velocity. The paper particularly focuses on the simulation of the main friction clutch during vehicle starting. The process of the simulation model design and the elaborate mathematical models which form its basis are described in detail.

  16. Production and decay spectroscopy of {sup 192}Po and {sup 194}Po

    Energy Technology Data Exchange (ETDEWEB)

    Andel, B., E-mail: boris.andel@fmph.uniba.sk [Department of Nuclear Physics and Biophysics, Comenius University in Bratislava, 842 48 Bratislava (Slovakia)

    2015-10-15

    A γ-ray spectroscopy study of the (11{sup −}) isomers in {sup 194}Po and {sup 192}Po was performed at the velocity filter SHIP at GSI (Germany). Nuclei were produced in fusion-evaporation reactions and investigated in the detection set-up at the focal plane after the separator. Several new γ transitions were attributed to the isomers and detailed analysis of the first γ-γ coincidences for both isomers is being prepared. For the reaction {sup 56}Fe + {sup 141}Pr → {sup 197}At*, excitation functions for astatine and polonium isotopes were measured and compared with HIVAP calculations.

  17. Enhancing visible light photocatalytic activity of direct Z-scheme SnS{sub 2}/Ag{sub 3}PO{sub 4} heterojunction photocatalysts

    Energy Technology Data Exchange (ETDEWEB)

    Luo, Jin, E-mail: lj328520504@126.com; Zhou, Xiaosong; Ma, Lin; Xu, Limei; Xu, Xuyao; Du, Zhihua; Zhang, Jinquan

    2016-09-15

    Highlights: • Novel direct Z-scheme SnS{sub 2}/Ag{sub 3}PO{sub 4} heterojunction photocatalysts are synthesized. • SnS{sub 2}/Ag{sub 3}PO{sub 4} exhibits much higher photocatalytic activity than pure SnS{sub 2} and Ag{sub 3}PO{sub 4}. • A possible photocatalytic mechanism was discussed in detail. - Abstract: Novel direct Z-scheme SnS{sub 2}/Ag{sub 3}PO{sub 4} heterojunction photocatalysts were successfully fabricated with SnS{sub 2} nanoplates hybridized by Ag{sub 3}PO{sub 4} nanoparticals via a facile hydrothermal and precipitation method and applied for the photocatalytic degradation of methyl orange in aqueous solution under visible light irradiation (λ > 420 nm). It was found that the photocatalytic performance of the SnS{sub 2} (2.0 wt%)/Ag{sub 3}PO{sub 4} heterojunction photocatalyst with 2.0 wt% SnS{sub 2} content was much higher than that of individual SnS{sub 2} and Ag{sub 3}PO{sub 4}. The enhanced photocatalytic activity could be ascribed to the efficient separation of photogenerated electrons and holes through the formation of direct Z-scheme system composed of SnS{sub 2} and Ag{sub 3}PO{sub 4}. Furthermore, the recycling experiments revealed that the photocorrosion behavior of Ag{sub 3}PO{sub 4} was strongly inhibited by SnS{sub 2}, it may be due to the photogenerated electrons of Ag{sub 3}PO{sub 4} would be quickly combined with the photogenerated holes of SnS{sub 2}. This work will be useful for the design of other direct Z-scheme visible-light-driven photocatalytic systems for application in energy conversion and environmental remediation.

  18. BiPO{sub 4}/BiOBr p–n junction photocatalysts: One-pot synthesis and dramatic visible light photocatalytic activity

    Energy Technology Data Exchange (ETDEWEB)

    Liu, Zhang Sheng, E-mail: lzsliu2008@hotmail.com [School of Material Science and Engineering, China University of Mining and Technology, Xuzhou 221116 (China); Wu, Bian Tao [School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116 (China); Niu, Ji Nan; Feng, Pei Zhong; Zhu, Ya Bo [School of Material Science and Engineering, China University of Mining and Technology, Xuzhou 221116 (China)

    2015-03-15

    Highlights: • BiPO{sub 4}/BiOBr p–n junction photocatalysts were synthesized by a solvothermal method. • BiPO{sub 4}/BiOBr composites were constructed by inlaying BiPO{sub 4} particles into BiOBr microspheres. • BiPO{sub 4}/BiOBr photocatalysts exhibited the enhanced photocatalytic activity. • ·O{sub 2}{sup −} and h{sup +} were the main active species responsible for the degradation of RhB. - Abstract: BiPO{sub 4}/BiOBr p–n junction photocatalysts were successfully synthesized via a facile one-pot solvothermal method. The products were characterized by XRD, FE-SEM, HRTEM, XPS, DRS, PL and EIS. The obtained BiPO{sub 4}/BiOBr composites were constructed by inlaying BiPO{sub 4} nanoparticles into BiOBr hierarchical microspheres. Compared with BiPO{sub 4} and BiOBr, they exhibited significantly enhanced visible light photocatalytic activity towards the degradation of Rhodamine B (RhB). Among them, 10% BiPO{sub 4}/BiOBr showed the maximum value of the activity, whose degradation rate was about three times higher than that of pure BiOBr. The enhanced photocatalytic activity could be attributed to the formation of the BiPO{sub 4}/BiOBr p–n junction, which resulted in the effective separation and transfer of photogenerated electron–hole pairs. Moreover, the trapping experiments confirmed that ·O{sub 2}{sup −} and h{sup +} were the main active species responsible for the degradation of RhB.

  19. Po sledeh postsocialističnega prestrukturiranja mest: spreminjajoča se središča v srednje- in vzhodnoevropskih prestolnicah

    Directory of Open Access Journals (Sweden)

    Jasna MARIOTTI

    2016-06-01

    Full Text Available Hitre politične in gospodarske spremembe po padcu socializma so povzročile dinamične procese urbanega prestrukturiranja v mestih, pri čemer so stare vzorce in modele rasti zamenjali tisti, pri katerih sta bila kapital in tržno gospodarstvo ključna za rast in razvoj. Preobrazba v tržno gospodarstvo in ponovna uvedba lastništva zemljišč sta zahtevali nov, decentralizirani sistem odločanja, kar je neposredno vplivalo na zgradbo in obliko mest. Med urbanimi preobrazbami so prišle jasno do izraza spremembe v lokacijskih vzorcih trgovskih objektov v mestih, ki so ponazarjale različne vzorce prostorske organizacije postsocialističnih mest. V članku avtorja preučujeta in predstavita nekatere posebnosti te preobrazbe v Bukarešti, Budimpešti, Pragi in Sofiji pred padcem socializma in po njem. Na podlagi analize izbranih mest predstavita procese postsocialističnega prostorskega prestrukturiranja, pri čemer preučujeta spremembe njihovih središč, ki so povzročile razdrobljenost mest in razpadanje urbanega tkiva. V primerjalni študiji je poleg tega prikazano, kako se v mestih s podobno preteklostjo lahko pojavijo različni razvojni vzorci.

  20. Hydrothermal synthesis and luminescence properties of Ca{sub 5}(PO{sub 4}){sub 3}F: Eu{sup 3+} microrods

    Energy Technology Data Exchange (ETDEWEB)

    Yan, Xiangyu [State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012 (China); Fu, Zuoling, E-mail: zlfu@jlu.edu.cn [State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012 (China); Wang, Xiaojie [State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012 (China); Jeong, Jung Hyun, E-mail: jhjeong@pknu.ac.kr [Department of Physics, Pukyong National University, Busan 608-737 (Korea, Republic of)

    2014-08-01

    In this work, uniform and well-crystallized Ca{sub 5}(PO{sub 4}){sub 3}F: Eu{sup 3+} microrods have been successfully synthesized by a facile one-step hydrothermal synthesis method by sodium citrate as the crystal modifier. The prepared samples were systematically characterized by powder X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), photoluminescence (PL), and photoluminescent excitation spectra (PLE). Detailed proofs indicated that the growth process of Ca{sub 5}(PO{sub 4}){sub 3}F: Eu{sup 3+} microrods was dominated by a nucleation–crystallization-oriented attachment mechanism. Furthermore, the luminescent properties of the as-synthesized Ca{sub 5}(PO{sub 4}){sub 3}F: Eu{sup 3+} microrods were also investigated. - Highlights: • Uniform and well-crystallized Ca{sub 5}(PO{sub 4}){sub 3}F:Eu{sup 3+} microrods have been successfully synthesized by a facile one-step hydrothermal synthesis method. • Detailed proofs indicated that the growth process of Ca{sub 5}(PO{sub 4}){sub 3}F:Eu{sup 3+} microrods was dominated by a nucleation–crystallization-oriented attachment mechanism. • The luminescent properties of the as-synthesized Ca{sub 5}(PO{sub 4}){sub 3}F:Eu{sup 3+} microrods were also investigated.

  1. Realizace zařízení pro komunikaci Car2X a Car2Car

    OpenAIRE

    Štohanzl, Milan

    2011-01-01

    Tato práce zkoumá možnosti Car2Car a Car2X komunikace. Obsahuje p ř ehled vlastností systému, typ ů p ř enášených zpráv, apod. Zobrazuje architekturu systému a zabývá se i technickými p ř edpoklady a omezeními systému. S ohledem na fakt, že práce vzniká ješt ě v dob ě , kdy vývoj tohoto systému není ukon č en, práce neobsahuje detaily, které by umož ň ovaly hlubší technickou p ř edstavu o problematice komunikace mezi pohybujícími se vozidly. Práce se dále zabývá možnostmi realizace za ř ízení...

  2. Characterization of Microstructure of Permanent Mold Cast Zinc Alloy ZA27

    Institute of Scientific and Technical Information of China (English)

    CHEN Ti-jun; LI Yuan-dong; HAO Yuan

    2004-01-01

    The microstructure of permanent mold cast zinc alloy ZA27 was examined by SEM and TEM after natural aging for 18 months. It was found that the primary α' phase, peritectic and eutectic β phases all decomposed into the equilibrium well-formed α+η lamellae or irregular α+η structure through cellular reaction. The cell colonies nucleated on the interdendritic eutectic η layer and grew into the primary dendrites, thus first making the β phase in the dendrite edges decompose, and then the α' phase in the dendrite cores. The products from the α' phase appeared in regular lamellae rather than irregular particles. In addition, a fine, dense transitional phase α'm containing 27.8 mass% Al, with a fcc crystal structure and lattice parameter of about 0.4013nm, formed in α lamellae. Copper was preferentially concentrated in Zn-rich η phase and existed in the form of Cu-rich ε phase (CuZr4) particles, with hcp crystal structure and parameters a=0.274nm,c=0.429nm and c/a=1.567.

  3. Optimalizace metody PCR-RFLP pro taxonomické zařazení kvasinek

    OpenAIRE

    Olivová, Radana

    2009-01-01

    Tato diplomová práce se zabývá optimalizací metody PCR – RFLP pro taxonomické zařazení kvasinek. Konvenční metody pro identifikaci kvasinek jsou časově náročné. Molekulárně biologické metody založené na PCR slouží k rychlé a precizní identifikaci v porovnání s tradičními fenotypovými metodami. V této práci byla použita molekulárně biologická metoda PCR – RFLP, která bere v úvahu , že v ribozomální DNA kvasinek se opakují konzervativní nekódující oblasti(tzv. spacery), jež jsou charakteristick...

  4. Everyday Physical Activity of Students in Nyíregyháza

    Directory of Open Access Journals (Sweden)

    Fintor János Gábor

    2015-05-01

    Full Text Available The popularity of physical education lessons has already been demonstrated by a lot of essays, however, it has also been revealed that this popularity, as well as the frequency of doing sports, tends to decrease at later ages of life. Pursuing sports has a positive effect on academic performance. Introducing PE as an everyday lesson at schools was a milestone in physical education. Provided the aims are realised successfully, the general state of health of students can show a favourable change. The aim of our research, on the one hand, is to reveal how important physical education is as contrasted with other school subjects, according to those students asked. On the other hand, we aim to examine how the certain positive and negative attitudes of the subjects of our study appear in the resulting figures. The research was conducted in the form of self-completion questionnaires in four different funded institutions in Nyíregyháza (n=285, in May, 2014. In the course of evaluation, we have used multivariate function analysis as well as frequency research and cross table reference. Participants mainly regard PE as important as other school subjects, however, boys significantly regard it more important than girls do. Those who do sports on a regular basis were more likely to agree that PE lessons are conducted in a friendly atmosphere than those who do sports less. Significantly, boys tended to agree with positive statements about sport.

  5. Hot Deformation Behavior and Intrinsic Workability of Carbon Nanotube-Aluminum Reinforced ZA27 Composites

    Science.gov (United States)

    Liu, Yang; Geng, Cong; Zhu, Yunke; Peng, Jinfeng; Xu, Junrui

    2017-04-01

    Using a controlled thermal simulator system, hybrid carbon nanotube-aluminum reinforced ZA27 composites were subjected to hot compression testing in the temperature range of 473-523 K with strain rates of 0.01-10 s-1. Based on experimental results, a developed-flow stress model was established using a constitutive equation coupled with strain to describe strain softening arising from dynamic recrystallization. The intrinsic workability was further investigated by constructing three-dimensional (3D) processing maps aided by optical observations of microstructures. The 3D processing maps were constructed based on a dynamic model of materials to delineate variations in the efficiency of power dissipation and flow instability domains. The instability domains exhibited adiabatic shear band and flow localization, which need to be prevented during hot processing. The recommended domain is predicated to be within the temperature range 550-590 K and strain rate range 0.01-0.35 s-1. In this state, the main softening mechanism is dynamic recrystallization. The results from processing maps agree well with the microstructure observations.

  6. Analýza síťové komunikace Ransomware

    OpenAIRE

    Šrubař, Michal

    2017-01-01

    Cílem této práce je přiblížení problematiky malware typu ransomware a následně analýza síťové komunikace crypto-ransomware a možné detekce tohoto typu malware. Práce popisuje v jakém prostředí zkoumání této síťové komunikace bylo provedeno a jaká byla zvolena metodologie. První část práce se zabývá samotnou analýzou síťového provozu tohoto typu malware se zaměřením na HTTP a DNS komunikaci. Dále se zabývá anomáliemi, které je možné během komunikace tohoto malware pozorovat na síti. Soustředí ...

  7. Compressive deformation of semi-solid SiCp/ZA27 composites

    Institute of Scientific and Technical Information of China (English)

    陈体军; 郝远; 孙军

    2003-01-01

    The semi-solid compressive deformation behaviors of two kinds of SiCp/ZA27 composites, one was modified by Zr and the other was not modified, were investigated. The results indicate that with increasing strain, the stress of the modified composite first increases to a peak value, then dramatically decreases to a plateau value, and again increases at the final stage of deformation; but for the unmodified composite, after being up to a peak value, the stress decreases slowly at all times. As the deformation temperature or the heating time decreases, or the strain rate increases, the stress level(the peak and the plateau values) and the degree of cracking of the modified specimens all increase, and the specimen with uniform deformation and without cracks is obtained after being held at 470 ℃ for 30 min and deformed at the strain rate of 9.33×10-3s-1. But the degree of cracking of the unmodified is just inverse to that of the modified. Under the same deformation conditions, the stress level and the degree of cracking of the unmodified composite are higher than those of the modified one, and the degree of cracking is very serious under any conditions. These phenomena were mainly discussed through analyzing the microstructures under different conditions and deformation mechanisms occurred at different deformation stages.

  8. On the deuterium abundance at $z_{a} = 3.514$ towards APM 08279+5255

    CERN Document Server

    Levshakov, S A; Kegel, W H

    2000-01-01

    A very low primordial deuterium abundance of D/H = 1.5 10^{-5} has recently been proposed by Molaro et al. in the Lyman limit system with log(N_HI) = 18.1 cm^{-2} at z_a = 3.514 towards the quasar APM08279+5255. The D/H value was estimated through the standard Voigt fitting procedure utilizing a simple one-component model of the absorbing region. The authors assumed, however, that `a more complex structure for the hydrogen cloud with somewhat ad hoc components would allow a higher D/H'. We have investigated this system using our new Monte Carlo inversion procedure which allows us to recover not only the physical parameters but also the velocity and density distributions along the line of sight. The absorption lines of HI, CII, CIV, SiIII, and SiIV were analyzed simultaneously. The result obtained shows a considerably lower neutral hydrogen column density log(N_HI) = 15.7 cm^{-2}. Hence, the measurement of the deuterium abundance in this system is rather uncertain. We find that the asymmetric blue wing of the ...

  9. Effects of Compression Parameters on Deformation Behaviors of Semi-Solid ZA27 Alloys

    Institute of Scientific and Technical Information of China (English)

    CHEN Ti-jun; HAO Yuan; SUN Jun

    2003-01-01

    An investigation was performed on the effects of semi-solid compression parameters,such as strain rate,compression temperature and heating time at these temperatures on deformation behaviors of two kinds of ZA27 alloys,one was modified by Zr and the other was unmodified.The results indicate that with the increasing of the strain,the stress of the modified composite first sharply increases to a peak value,then dramatically decreases to a plateau value,and again increases till the end of deformation.But for the unmodified,after being up to a peak value,the stress only decreases slowly.As the compression temperature or the heating time decreases,or the strain rate increases,the stress level and the cracking degree of these two kinds of alloys increase.Under the same deformation conditions,the stress level and the cracking degree of the unmodified alloy are higher than those of the modified one.But there is an exception that the stress level of the unmodified alloy is minimum and smaller than that of the modified one when deformed at the low temperature of 450℃.These phenomena were mainly discussed through analyzing the microstructures under different conditions and the deformation mechanisms at different deformation stages.

  10. Enhancement of the Rate Capability of LiFePO4 by a New Highly Graphitic Carbon-Coating Method.

    Science.gov (United States)

    Song, Jianjun; Sun, Bing; Liu, Hao; Ma, Zhipeng; Chen, Zhouhao; Shao, Guangjie; Wang, Guoxiu

    2016-06-22

    Low lithium ion diffusivity and poor electronic conductivity are two major drawbacks for the wide application of LiFePO4 in high-power lithium ion batteries. In this work, we report a facile and efficient carbon-coating method to prepare LiFePO4/graphitic carbon composites by in situ carbonization of perylene-3,4,9,10-tetracarboxylic dianhydride during calcination. Perylene-3,4,9,10-tetracarboxylic dianhydride containing naphthalene rings can be easily converted to highly graphitic carbon during thermal treatment. The ultrathin layer of highly graphitic carbon coating drastically increased the electronic conductivity of LiFePO4. The short pathway along the [010] direction of LiFePO4 nanoplates could decrease the Li(+) ion diffusion path. In favor of the high electronic conductivity and short lithium ion diffusion distance, the LiFePO4/graphitic carbon composites exhibit an excellent cycling stability at high current rates at room temperature and superior performance at low temperature (-20 °C).

  11. Urea-assisted synthesis of AlPO{sub 4}:Ce,Tb nanorods as a redox luminescence switch

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Wei; Hu, Juncheng, E-mail: hujuncheng@mail.scuec.edu.cn [South-Central University for Nationalities, Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, Hubei Province (China)

    2013-07-15

    AlPO{sub 4}:Ce,Tb nanorods were synthesized by a facile hydrothermal method. The morphology of rod-like AlPO{sub 4} was tuned by varying urea concentrations, AlPO{sub 4} gradually changed from nanosheets to nanorods, and urea provided hydroxyl anion (OH{sup -}) in the aqueous solution to prepare the dispersed nanorods under the hydrothermal conditions. The emission intensity of nanorods increased significantly compared to that of nanosheets. AlPO{sub 4}:Ce,Tb nanorods provided a novel redox luminescence switch on the basis of the reversible switching of the Ce{sup 3+}/Ce{sup 4+} redox couple. The luminescence is quenched (off) when the system is in the oxidized form while it is restored (on) in the reduced form. The mechanism of the energy transfer and electronic transition between Ce{sup 3+} and Tb{sup 3+} in the AlPO{sub 4} nanorods was also discussed. This switch has biocompatibility and low toxicity, and may have a potential application in biomedical diagnostics and analysis.

  12. Nanocomposite of exfoliated bentonite/g-C3N4/Ag3PO4 for enhanced visible-light photocatalytic decomposition of Rhodamine B.

    Science.gov (United States)

    Ma, Jianfeng; Huang, Daiqin; Zhang, Wenyi; Zou, Jing; Kong, Yong; Zhu, Jianxi; Komarneni, Sridhar

    2016-11-01

    Novel visible-light-driven heterojunction photocatalyst comprising exfoliated bentonite, g-C3N4 and Ag3PO4 (EB/g-C3N4/Ag3PO4) was synthesized by a facile and green method. The composites EB/g-C3N4/Ag3PO4 were characterized by X-ray diffraction, Transmission electron microscopy, Fourier transform infrared spectroscopy, UV-Vis diffuse reflectance spectroscopy and the Brunauer, Emmett, and Teller (BET) surface area method. Under visible light irradiation, EB/g-C3N4/Ag3PO4 composites displayed much higher photocatalytic activity than that of either pure g-C3N4 or pure Ag3PO4 in the degradation of Rhodamine B (RhB). Among the hybrid photocatalysts, EB/g-C3N4/Ag3PO4 composite containing 20 wt% Ag3PO4 exhibited the highest photocatalytic activity for the decolorization of RhB. Under the visible-light irradiation, the RhB dye was completely decolorized in less than 60 min. The enhanced photocatalytic performance is attributed to the stable structure, enlarged surface area, strong adsorbability, strong light absorption ability, and high-efficiency separation rate of photoinduced electron-hole pairs. Our finding paves a way to design highly efficient and stable visible-light-induced photocatalysts for practical applications in wastewater treatment.

  13. 3D amorphous carbon and graphene co-modified LiFePO4 composite derived from polyol process as electrode for high power lithium-ion batteries

    Institute of Scientific and Technical Information of China (English)

    Guan Wu; Ran Ran; Bote Zhao; Yujing Sha; Chao Su; Yingke Zhou; Zongping Shao

    2014-01-01

    Amorphous carbon and graphene co-modified LiFePO4 nanocomposite has been synthesized via a facile polyol process in connection with a following thermal treatment. Various characterization techniques, including XRD, M ¨ossbauer spectra, Raman spectra, SEM, TEM, BET, O2-TPO, galvano charge-discharge, CV and EIS were applied to investigate the phase composition, carbon content, morphological structure and electrochemical performance of the synthesized samples. The effect of introducing way of carbon sources on the properties and performance of LiFePO4/C/graphene composite was paid special attention. Under optimized synthetic conditions, highly crystalized olivine-type LiFePO4 was successfully obtained with electron conductive Fe2P and FeP as the main impurity phases. SEM and TEM analyses demonstrated the graphene sheets were randomly distributed inside the sample to create an open structured LiFePO4 with respect to graphene, while the glucose-derived carbon mainly coated over LiFePO4 particles which effectively connected the graphene sheets and LiFePO4 particles to result in a more efficient charge transfer process. As a result, favorable electrochemical performance was achieved. The performance of the amorphous carbon-graphene co-modified LiFePO4 was further progressively improved upon cycling in the first 200 cycles to reach a reversible specific capacity as high as 97 mAh·g-1 at 10 C rate.

  14. The Synthesis of LiMnxFe1−xPO4/C Cathode Material through Solvothermal Jointed with Solid-State Reaction

    Directory of Open Access Journals (Sweden)

    Xiangming He

    2016-09-01

    Full Text Available LiMnxFe1−xPO4/C material has been synthesized through a facile solid-state reaction under the condition of carbon coating, using solvothermal-prepared LiMnPO4 and LiFePO4 as precursors and sucrose as a carbon resource. XRD and element distribution analysis reveal completed solid-state reaction of precursors. LiMnxFe1−xPO4/C composites inherit the morphology of precursors after heat treatment without obvious agglomeration and size increase. LiMnxFe1−xPO4 solid solution forms at low temperature around 350 °C, and Mn2+/Fe2+ diffuse completely within 1 h at 650 °C. The LiMnxFe1−xPO4/C (x < 0.8 composite exhibits a high-discharge capacity of over 120 mAh·g−1 (500 Wh·kg−1 at low C-rates. This paves a way to synthesize the crystal-optimized LiMnxFe1−xPO4/C materials for high performance Li-ion batteries.

  15. Visible-light-driven TiO{sub 2}/Ag{sub 3}PO{sub 4}/GO heterostructure photocatalyst with dual-channel for photo-generated charges separation

    Energy Technology Data Exchange (ETDEWEB)

    Lu, Bingqing; Ma, Ni; Wang, Yaping; Qiu, Yiwei [Center for Optoelectronics Materials and Devices, Department of Physics, Zhejiang Sci-Tech University, Hangzhou 310018 (China); Hu, Haihua [Zhejiang University City College, Hangzhou 310015 (China); Zhao, Jiahuan; Liang, Dayu; Xu, Sheng; Li, Xiaoyun; Zhu, Zhiyan [Center for Optoelectronics Materials and Devices, Department of Physics, Zhejiang Sci-Tech University, Hangzhou 310018 (China); Cui, Can, E-mail: cancui@zstu.edu.cn [Center for Optoelectronics Materials and Devices, Department of Physics, Zhejiang Sci-Tech University, Hangzhou 310018 (China)

    2015-05-05

    Highlights: • TiO{sub 2}/Ag{sub 3}PO{sub 4}/GO was synthesized with a facile two-step method. • TiO{sub 2}/Ag{sub 3}PO{sub 4}/GO exhibit superior photocatalytic activity and stability. • TiO{sub 2}/Ag{sub 3}PO{sub 4}/GO has dual-channel for photo-generated charges separation. • TiO{sub 2}/Ag{sub 3}PO{sub 4}/GO composite reduces the consumption of Ag. - Abstract: A novel triple-component TiO{sub 2}/Ag{sub 3}PO{sub 4}/graphene oxide (TiO{sub 2}/Ag{sub 3}PO{sub 4}/GO) photocatalyst with dual channels for photo-generated charges separation has been synthesized to improve the photocatalytic activity and stability of Ag{sub 3}PO{sub 4} under visible light. The synthesis involved in-situ growth of Ag{sub 3}PO{sub 4} nanoparticles on GO sheets to form Ag{sub 3}PO{sub 4}/GO, and then deposited TiO{sub 2} nanocrystals on the surface of Ag{sub 3}PO{sub 4} by hydrolysis of Ti(SO{sub 4}){sub 2} at low-temperature hydrothermal condition. The TiO{sub 2}/Ag{sub 3}PO{sub 4}/GO exhibited superior photocatalytic activity and stability to bare Ag{sub 3}PO{sub 4}, TiO{sub 2}/Ag{sub 3}PO{sub 4} and Ag{sub 3}PO{sub 4}/GO in degradation of Rhodamine B and phenol solutions under visible light. It is suggested that the photo-generated electrons in the conduction band of Ag{sub 3}PO{sub 4} can be quickly transferred to GO, while the holes in the valence band of Ag{sub 3}PO{sub 4} can be transferred to the valence band of TiO{sub 2}. The dual transfer channels at the interfaces of TiO{sub 2}/Ag{sub 3}PO{sub 4}/GO result in effective charges separation, leading to enhanced photocatalytic activity and stability. Furthermore, the content of noble metal Ag significantly reduces from 77 wt% in bare Ag{sub 3}PO{sub 4} to 55 wt% in the nanocomposite. The concept of establishing dual channels for charges separation in a triple-component heterostructure provides a promising way to develop photocatalysts with high efficiency.

  16. L’Art du Poète

    OpenAIRE

    Durand, Frédéric

    2013-01-01

    La poésie, c’est l’épanchement du songe dans la vie réelle. Gérard de Nerval Car Jacobsen fut un poète. Un poète dont les vers restent inégaux, laborieux et courts de souffle, mais dont bien des pages en prose méritent et appellent le culte de la prospérité. Un authentique poète, au sens où l’entendait l’auteur de Aurélia ou le Rêve de la vie, comme plus tard celui des Poèmes en prose. Toute son œuvre peut légitimement revendiquer le prestigieux bénéfice de la poésie, perpétuellement tendue q...

  17. Evaluacija dvije metode nastave za sigurnost rukovanja vatrenim oružjem

    OpenAIRE

    2008-01-01

    U radu se uspoređuju dvije metode nastave sigurnosti rukovanja vatrenim oružjem. Jedna metoda je Deset pravila, a druga metoda Četiri plus šest pra¬vila. Korištena je metoda komparativnih skupina u kojoj je svaka skupina (od po 20 muških i 20 ženskih ispitanika) učila pravila sigurnosti prema jednoj od metoda. Mjerenje ukupan broj počinjenih pogrešaka sigurnosti tijekom 10 vježbi školskim streljivom i tijekom sljedećih 10 vježbi bojnim streljivom. Bilježenojepet tipova pogrešaka sigurnosti: n...

  18. Fabrication of novel Ag{sub 3}PO{sub 4}/BiOBr heterojunction with high stability and enhanced visible-light-driven photocatalytic activity

    Energy Technology Data Exchange (ETDEWEB)

    Mehraj, Owais [Department of Chemistry, Aligarh Muslim University, Aligarh 202002 (India); Mir, Niyaz A. [Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560012 (India); Pirzada, Bilal M. [Department of Chemistry, Aligarh Muslim University, Aligarh 202002 (India); Sabir, Suhail, E-mail: sabirsuhail09@gmail.com [Department of Chemistry, Aligarh Muslim University, Aligarh 202002 (India)

    2015-03-30

    Graphical abstract: - Highlights: • Ag{sub 3}PO{sub 4}/BiOBr hybrids with exceptionally high visible light photocatalytic activity were synthesized through simple co-precipitation method. • The enhanced activity of Ag{sub 3}PO{sub 4}/BiOBr hybrids was attributed to the efficient charge separation and increased surface area. • The as synthesized Ag{sub 3}PO{sub 4}/BiOBr hybrids displayed high stability. • The high stability of Ag{sub 3}PO{sub 4}/BiOBr hybrids was attributed to the fast transfer of electrons from conduction band of Ag{sub 3}PO{sub 4} to the conduction band of BiOBr. - Abstract: Herein, we report a facile and effective method to enhance the photocatalytic activity of bismuth oxybromide (BiOBr) semiconductor through the fabrication of heterojunction with Ag{sub 3}PO{sub 4}. The as synthesized Ag{sub 3}PO{sub 4}/BiOBr microspheres were characterized with transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), X–ray diffraction (XRD) and UV–vis diffuse reflectance spectroscopy (DRS). The new Ag{sub 3}PO{sub 4}/BiOBr heterojunctions exhibited wide absorption in the visible-light region and compared to pure BiOBr and Ag{sub 3}PO{sub 4} samples displayed exceptionally high photocatalytic activity for the degradation of typical organic pollutants such as Rhodamine B (RhB) and phenol. The optimal Ag/Bi weight ratio in Ag{sub 3}PO{sub 4}/BiOBr microsphere (AB7) was found to be 0.7. The enhanced photocatalytic activity was related to the efficient separation of electron–hole pairs derived from matching band potentials between BiOBr and Ag{sub 3}PO{sub 4} which results into the generation of natural energy bias at heterojunction and subsequent transfer of photoinduced charge carriers. Moreover, the synthesized samples exhibited almost no loss of activity even after 6 recycling runs indicating their high photocatalytic stability. Considering the facile and environment friendly route for the

  19. Vrednovanje lokacija za uspostavljanje mosnog mesta prelaska preko vodenih prepreka primenom fuzzy logike / Evaluating locations for river crossing using fuzzy logic

    Directory of Open Access Journals (Sweden)

    Darko I. Božanić

    2010-01-01

    Full Text Available U radu je prikazana faza u procesu donošenja odluke pri izboru lokacije za uspostavljanje mosnog mesta prelaska radi savlađivanja vodenih prepreka. Proces donošenja odluke propraćen je većim ili manjim stepenom neodređenosti kriterijuma koji su neophodni za donošenje relevantne odluke. Pošto je fuzzy logika veoma pogodna za izražavanje neodređenosti i neizvesnosti, u radu je prikazan proces donošenja odluke primenom fuzzy pristupa. / The managing process in every organization is developed by making appropriate decisions and by their transformation into actions. The managing process is, therefore, often considered as equal with the decision making process, which shows that decision making plays a significant role in the managing process of organizations. Managing efficiency as well as functioning and development of every organization depends on decision making correctness, i.e. on the correctness of undertaken actions. The Serbian Armed Forces is an organizational system where the managing process is carried out as well. The levels of decision importance in the Army are different, from daily-operative to strategic ones, but the importance of the decision making process itself is equal, regardless the level of decisions. Decision makers sometimes face situations when they have only one action and in that case the decision making process is reduced to either accepting or refusing the action. However, decision makers often face a situation when, by ranking many offered actions, they decide which one is the best. Ranking itself is carried out by evaluating offered actions, and the selection is made based on the best results of an action. These conclusions require a careful and systematical approach to the decision making process, regardless the decision type, since any wrong decision leads to the weakening of the combat readiness of The Serbian Armed Forces. The paper shows the stage in the decision making process during the selection of a

  20. Koristi Inbound Marketing pristopa za slovenska izvozna podjetja v dobi globalizacije

    OpenAIRE

    Vutkovič, Vanja

    2016-01-01

    Globalizacija vključuje veliko stvari: mednarodni pretok idej in znanja, izmenjavo kultur, globalno civilno družbo, in globalno okoljsko gibanje. Diplomsko delo pa govori predvsem o ekonomski globalizaciji, ki je posledica tesnejšega gospodarskega povezovanja držav, večjega pretoka blaga in storitev, kapitala in delovne sile in kako lahko slovenska podjetja izkoristijo Inbound marketing, da bodo več prodala v tujini. Z razvojem globalizacije se je pojavila posebna oblika mednarodnega po...

  1. Solid partitioning and solid-liquid distribution of {sup 210}Po and {sup 210}Pb in marine anoxic sediments: roads of Cherbourg at the northwestern France

    Energy Technology Data Exchange (ETDEWEB)

    Connan, O. [Laboratoire de Radioecologie de Cherbourg-Octeville, Institut de Radioprotection et de Surete nucleaire (IRSN), Service d' Etudes et du Comportement des Radionucleides dans l' Environnement (SECRE), rue Max Pol Fouchet, 50130 Cherbourg-Octeville (France)], E-mail: olivier.connan@irsn.fr; Boust, D. [Laboratoire de Radioecologie de Cherbourg-Octeville, Institut de Radioprotection et de Surete nucleaire (IRSN), Service d' Etudes et du Comportement des Radionucleides dans l' Environnement (SECRE), rue Max Pol Fouchet, 50130 Cherbourg-Octeville (France); Billon, G. [Laboratoire de Chimie Analytique et Marine, Universite des sciences et technologies de Lille, 59655 Villeneuve d' Ascq Cedex (France); Solier, L.; Rozet, M.; Bouderbala, S. [Laboratoire de Radioecologie de Cherbourg-Octeville, Institut de Radioprotection et de Surete nucleaire (IRSN), Service d' Etudes et du Comportement des Radionucleides dans l' Environnement (SECRE), rue Max Pol Fouchet, 50130 Cherbourg-Octeville (France)

    2009-10-15

    A sequential extraction protocol has been used to determine the solid-phase partition of {sup 210}Po and {sup 210}Pb in anoxic marine sediment from the roads of Cherbourg (France) in the central English Channel. Measurements were also obtained in pore waters, in which {sup 210}Po activities range between 1 and 20 mBq L{sup -1} and {sup 210}Pb activities between 2.4 and 3.8 mBq L{sup -1}, with highest activities in the topmost layer. These activities are higher than in seawater, suggesting that sediment act as a source of both {sup 210}Po and {sup 210}Pb for overlying water. The {sup 210}Po profile in the pore waters is apparently correlated with those obtained for Fe, Mn and SO{sub 4}{sup 2-}, suggesting an influence of early diagenetic processes on the {sup 210}Po solid-liquid distribution. In the sediment, {sup 210}Po is predominantly bound to organic matter or chromium reducible sulphides, and residuals (clay minerals and refractory oxides). Our results indicate that {sup 210}Po is not significantly bound to AVS, i.e. acid volatile sulphides: bioturbation could play a role by the early redistribution of {sup 210}Po bound to acid volatile sulphides in the sediment. {sup 210}Po, {sup 210}Pb and Pb exhibit differences in terms of distribution, probably due to a different mode of penetration in the sediment. This work provides information on solid and liquid distribution of {sup 210}Po and {sup 210}Pb in marine sediment. These data are very scarce in the litterature.

  2. PoP的发展与技术探讨

    Institute of Scientific and Technical Information of China (English)

    陆祥华

    2012-01-01

    叠层封装即PoP,主要用在信号处理和系统存储器系列中,特别在智能手机及多媒体平板电脑中的应用较广。从2005年第一代PoP产品到现在,PoP的应用呈逐年增长的势头。

  3. A new polymorph of Lu(PO33

    Directory of Open Access Journals (Sweden)

    Anis Bejaoui

    2008-08-01

    Full Text Available A new polymorph of lutetium polyphosphate, Lu(PO33, was found to be isotypic with the trigonal form of Yb(PO33. Two of the three Lu atoms occupy special positions (Wyckoff positions 3a and 3b, site symmetry overline{3}. The atomic arrangement consists of infinite helical polyphosphate chains running along the c axis, with a repeat period of 12 PO4 tetrahedra, joined with LuO6 octahedra.

  4. Mammography Facilities

    Data.gov (United States)

    U.S. Department of Health & Human Services — The Mammography Facility Database is updated periodically based on information received from the four FDA-approved accreditation bodies: the American College of...

  5. Health Facilities

    Science.gov (United States)

    Health facilities are places that provide health care. They include hospitals, clinics, outpatient care centers, and specialized care centers, such as birthing centers and psychiatric care centers. When you ...

  6. Canyon Facilities

    Data.gov (United States)

    Federal Laboratory Consortium — B Plant, T Plant, U Plant, PUREX, and REDOX (see their links) are the five facilities at Hanford where the original objective was plutonium removal from the uranium...

  7. Degradation Studies on LiFePO4 cathode

    DEFF Research Database (Denmark)

    Scipioni, Roberto; Jørgensen, Peter Stanley; Hjelm, Johan

    2015-01-01

    In this paper we examine a laboratory LiFePO4 (LFP) cathode and propose a simple model that predicts the electrode capacity as function of C-rate, number of cycles and calendar time. Microcracks were found in Li1-xFePO4 particles in a degraded LFP electrode and low-acceleration voltage (1 kV) FIB....../SEM analysis allowed us to obtain phase contrast between FePO4 and LiFePO4. The evolution of micro-cracks is expected to increase the concentration of LFP particles which are not electronically accessible and thus cause a loss in capacity....

  8. Sodium samarium tetrakis(polyphosphate, NaSm(PO34

    Directory of Open Access Journals (Sweden)

    Dan Zhao

    2010-07-01

    Full Text Available NaSm(PO34 has been prepared by solid state reactions. It belongs to type II of the structural family of MILnIII(PO34 compounds (MI = alkali metal and LnIII = rare earth metal and is composed of ∞(PO3n]n− polyphosphate chains with a repeating unit of four PO4 tetrahedra. The chains extend parallel to [100] and share O atoms with irregular SmO8 polyhedra, forming a three-dimensional framework which delimits tunnels occupied by Na+ cations in a distorted octahedral environment.

  9. Effect of Ag+ and PO43- ratios on the microstructure and photocatalytic activity of Ag3PO4

    Science.gov (United States)

    Qin, Jiaqian; Zhang, Xinyu; Yang, Chengwu; Song, Aijun; Zhang, Bing; Rajendran, Saravanan; Ma, Mingzhen; Liu, Riping

    2016-09-01

    In this work, the catalyst silver phosphate (Ag3PO4) with different initial ratios of Ag+ and PO43- in aqueous solution was synthesized by a simple precipitation method from AgNO3 and NH4H2PO4 which were used as the precursor. After that, the prepared samples were characterized by different techniques such as field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), UV-visible diffuse reflectance spectroscopy (UV-DRS) and decomposition evolution of rhodamine B (RhB) solution. The results indicate that the initial ratios of Ag+/PO43- in aqueous solution can modify the morphology and also it can significantly affect the photocatalytic performance. During photocatalytic process, the rich Ag+ ion Ag3PO4 can form the surface plasmon resonance (SPR) of Ag nanoparticles, which inhibit the reduction of Ag3PO4 resulting in higher photocatalytic activity and stability.

  10. A Comparative Structural and Electrochemical Study of Monoclinic Li3V2(PO4)3/C and Rhombohedral Li2.5Na0.5V2(PO4)3/C%Li3V2(PO4)3/C和Li2.5Na0.5V2(PO4)3/C的结构和电化学性能的比较研究

    Institute of Scientific and Technical Information of China (English)

    王文辉; 陈振宇; 戴长松; 纪大龙; 李佳杰; 魏杰

    2012-01-01

    A lithium-ion battery cathode material,Li2.5Na0.5V2(PO4)3/C,was prepared by the sol-gel method and characterized by X-ray diffraction (XRD),cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS).As a control,Li3V2(PO4)3/C (LVP/C) was also prepared and studied.The effect of sodium-ion doping on the structure and electrochemical properties was studied.The XRD pattern of Li2.5Na0.5V2(PO4)3/C indicates that the monoclinic structure of Li3-xNaxV2(PO4)3 has transformed into a rhombohedral structure because of large amount of sodium-ion doping.For Li25Na0.5V2(PO4)3/C,a specific discharge capacity of 118 mAh·g-1 is achieved at a 0.5 C charge rate and 1 C discharge rate,and a 92.4% retention rate of the initial capacity is obtained after 50 cycles.Different from monoclinic LVP,there is only one discharge plateau at 3.7 V in the charge/discharge voltage profile of Li2.5Na0.5V2(PO4)3/C.%采用溶胶-凝胶法合成了锂离子正极材料Li3V2(PO4)JC(LVP/C)及Li2.5Na0.5V2(PO4)3/C,并用XRD、循环伏安及交流阻抗等方法,研究了大量Na+掺杂对材料结构和电化学性能影响.结果表明,大量钠离子的掺杂会使LVP结构由单斜向菱方转变.掺杂化合物Li2.5Na0.5V2(PO4)/C在0.5 C充电1C放电时,首次放电容量为118 mAh·g-1,50次循环后容量保持率为92.4%,并发现与单斜LVP存在多个放电平台不同,Li2.5Na0.5V2(PO4)3/C仅在3.7 V处有一个放电平台.

  11. Particulate Scavenging and Lateral Transport Processes in the Gaoping Submarine Canyon Deduced From Pb-210 and Po-210 Observations

    Science.gov (United States)

    Hung, G.; Wang, P.; Shen, Y.

    2009-05-01

    Pb-210 and Po-210 were measured on the suspended particulate matter(SPM) and filtered water samples collected in profile from five stations in the Gaoping Submarine Canyon (GPSC) during a cruise aboard R/V Ocean Researcher III in late November, 2006. These stations were selected along the axis of the GPSC, and denoted as CW1 through CW5 sequentially from the shallow part near the mouth of the Gaoping River to the deep-water region of the canyon. Except for CW4, the SPM profiles generally show a rapid increase to a maximum near bottom, the value of which is an order of magnitude higher than that observed above, suggesting a significant particulate resuspension or lateral input in the bottom layer. The SPM concentrations obtained at canyon head stations(CW1 to CW3) vary between 0.36 and 19.17 mg/kg. These values are generally higher than those obtained farther outward(CW4 and CW5), which range from 0.01 to 2.13 mg/kg, indicating a decrease away from the shore. The dissolved Pb-210 and Po-210 profiles observed from CW1 and CW2 are fairly uniform for the entire water column, with a mean of about 14 and 12 dpm/100kg, respectively. The other stations show a large variation in dissolved Pb-210 and Po-210 with a mean of about 23 and 14 dpm/100kg, respectively. At stations CW1, CW2 and CW3, the particulate Pb-210 and Po-210 profiles generally display a maximum around 28-38 and 27-48 dpm/100kg, respectively, in the bottom layer, suggesting significant particulate resuspension and scavenging. Variable Pb-210 and Po-210 activities in the particulates at CW4 and CW5 are observed in the surface layer. Both the dissolved and the total (dissolved + particulate) Po-210 to Pb-210 activity ratios vary between 0.1 and 1.7, mostly less than 1.0, with a mean of 0.7 and 0.8, indicating a variable deficiency of Po-210 relative to Pb- 210 in this study area. Total activities of Pb-210 are generally higher than those of Po-210. The Ra-226 profiles show much lower activities than those of

  12. [A profile of requirements for the performance of work related medical rehabilitation from the perspective of the statutory pension insurance].

    Science.gov (United States)

    Streibelt, M; Buschmann-Steinhage, R

    2011-06-01

    Work-related medical rehabilitation (Work MR) is a specific part of medical rehabilitation, which is well-established and broadly investigated. In almost all indications there is evidence of benefit of Work MR in patients with distinctive work-related problems due to chronic disease or disability. Nevertheless, there is a lack of implementation in clinical practice. This is due to a variety of reasons, mainly a missing definition of the appropriate Work MR interventions. The development of a Profile of Requirements (PoR) for defining contents and patterns of Work MR on behalf of the Statutory Pension Insurance (SPI) therefore is a fundamental step towards evidence-based, needs-focused rehabilitation management. The article introduces such a PoR - for the present focused on somatic indications. The PoR was developed by an SPI expert group and revised in an extensive discourse within the SPI. A strategy involved in this context was the dissemination of work-related therapeutical concepts in medical rehabilitation. In the PoR, Work MR is defined as a concrete work-related designing of therapeutical interventions as well as an integrated "philosophy" in thinking and practicing of the actors involved. Work MR is differentiated in 3 intervention levels: While work-related basic interventions (Level A) are provided in all facilities for all patients, core interventions (Level B) as well as specific interventions (Level C) are explicitly concentrated on patient subgroups with distinct work-related problems. In the PoR the relevant diagnostic and therapeutic work-related interventions are attributed to the different intervention levels and described concerning the concrete arrangement. The 3 central core interventions "Work-related psychological group interventions", "Work-related internal load test" and "Work conditioning" are presented. The decisive benefit of the PoR is to substantiate the requirements of Work MR on behalf of the SPI often worded in a rather unspecific

  13. A novel visible light-driven Ag{sub 3}PO{sub 4}/SBA-15 nanocomposite: Preparation and application in the photo-degradation of pollutants

    Energy Technology Data Exchange (ETDEWEB)

    Chai, Yuanyuan; Wang, Li; Ren, Jia; Dai, Wei-Lin, E-mail: wldai@fudan.edu.cn

    2015-01-01

    Graphical abstract: - Highlights: • Highly efficient visible-light-driven Ag{sub 3}PO{sub 4}/SBA-15 nanocomposite. • Application in the photo-degradation of RhB. • Synthesis from a facile and simple colloidal method. • 20%-Ag{sub 3}PO{sub 4}/SBA-15 shows 8 times faster degradation rate than Ag{sub 3}PO{sub 4}. • Super stability and recycling ability. - Abstract: A novel visible light-driven environmental-benign Ag{sub 3}PO{sub 4}/SBA-15 nanocomposite photo-catalyst was synthesized for the photo-degradation of pollutants. The exploration on adsorption and photo-catalysis of dye or organic pollution for the nanocomposite was carried out. The adsorption capability for Ag{sub 3}PO{sub 4}/SBA-15 nanocomposite increases by 3 times compared with that of the Ag{sub 3}PO{sub 4} particles. The photo-catalytic activity of nanocomposite is higher than pristine Ag{sub 3}PO{sub 4} nanoparticle for the degradation of RhB or MO under visible light irradiation (λ > 420 nm). The effect of Ag{sub 3}PO{sub 4} loading on the catalytic performance was also studied. The results show that the optimum degradation is achieved over 20% Ag{sub 3}PO{sub 4}/SBA-15. Compared to pure Ag{sub 3}PO{sub 4} nanoparticle, the most efficient catalyst showed 8 times higher photo-catalytic activity for the degradation of RhB. The Ag{sub 3}PO{sub 4}/SBA-15 catalysts were systematically characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV–Vis diffuse reflectance spectroscopy (DRS), and N{sub 2}-adsorption–desorption isotherms (BET). A possible mechanism scheme regarding photo-degradation enhancement induced by dye enrichments has been proposed on the Ag{sub 3}PO{sub 4}/SBA-15 nanocomposite. Additionally, the SBA-15 support can enhance the efficiency of separation of catalyst from the reaction mixture, implying that the Ag{sub 3}PO{sub 4} loading on the SBA-15 catalyst will not result in the extra environment and health

  14. On Left π-regular po-semigroups%关于左π-正则po-半群

    Institute of Scientific and Technical Information of China (English)

    许新斋

    2001-01-01

    本文在po-半群和半群中引进了一致π-半素族的概念,并给出了左π-正则po-半群的若干刻划.这些刻划推广了N.Kehayopulu在文[1]中给出的一些结果.%In this paper, the concept of uniform π-semiprime family in po-semigroups and semigroups is introduced. We give characterizations of left π-regular po-semigroups which generalize the results given by N. Kehayopulu in [1].

  15. PoE交换机设计与配置管理%Design and Configuration of PoE Switch

    Institute of Scientific and Technical Information of China (English)

    刘嘉滨

    2012-01-01

    在WLAN业务和安防网络视频监控业务中需部署大量无线AP和IP Camera设备,为解决部署在特殊位置上设备取电问题,可通过PoE技术进行远程供电.结合成熟的网络交换机技术,PoE交换机随之出现.通过介绍PoE交换机设计与配置,进一步加深对PoE技术的认识.这种设计和配置的PoE交换机已在市场上成功应用.%Lots of wireless AP and IP camera devices have to be deployed in WLAN and monitors. In order to provide power supply for devices in special positions, the Power over Ethernet technology can be utilized. In combination with the ripe switch technology, PoE switches appear. By introducing the design and configuration of the PoE switch, the PoE technology can be further understood. And this type of PoE switch has appeared in the market.

  16. Electrochemical performance of carbon nanotube-modified LiFePO_4 cathodes for Li-ion batteries

    Institute of Scientific and Technical Information of China (English)

    陈召勇; 朱华丽; 朱伟; 张建利; 李奇峰

    2010-01-01

    Carbon nanotubes (CNTs) and acetylene black (AB) were dispersed synchronously or separately between LiFePO4 (LFP) particles as conducting agents during the course of manufacture of LiFePO4 cathodes. The morphology and electrochemical performances of as-prepared LiFePO4 were evaluated by means of transmission electron microscopy (TEM), charge-discharge test, electrochemical impedance spectroscope (EIS) and cyclic voltammetry (CV). CNTs contribute to the interconnection of the isolated LiFePO4 or carbon particles. For the CNTs-modified LiFePO4, it exhibits excellent performance in terms of both specific capacity and cycle life. The initial discharge capacity is 147.9 mA·h/g at 0.2C rate and 134.2 mA·h/g at 1C rate, keeping a capacity retention ratio of 97% after 50 cycles. The results from EIS indicate that the impedance value of the solid electrolyte interface decreases. The cyclic voltammetric peak profiles is more symmetric and spiculate and there are fewer peaks. CNTs are promising conductive additives candidate for high-power Li-ion batteries.

  17. Fabrication of novel g-C3N4 nanocrystals decorated Ag3PO4 hybrids: Enhanced charge separation and excellent visible-light driven photocatalytic activity.

    Science.gov (United States)

    Sun, Meng; Zeng, Qi; Zhao, Xia; Shao, Yu; Ji, Pengge; Wang, Changqian; Yan, Tao; Du, Bin

    2017-10-05

    Graphitic carbon nitride (g-C3N4) nanocrystals (NCs) decorated Ag3PO4 hybrids were synthesized by a facile method. The obtained samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), transmission electron microscope (TEM), and UV-vis diffuse reflectance spectra (DRS). The SEM and TEM images showed that the as-prepared Ag3PO4 were composed of particles with diameters of 200-500nm, while the obtained nanocrystalline g-C3N4 were composed of smaller particles with average diameter of 10nm. For nanocrystalline g-C3N4/Ag3PO4 hybrids, the particle surfaces of Ag3PO4 were decorated with numerous g-C3N4 NCs, result in a larger contact area between g-C3N4 and Ag3PO4. The photocatalytic performances were evaluated by decomposing MO, phenol, bisphenol A, and RhB under visible light. Compared with Ag3PO4 and g-C3N4, the g-C3N4/Ag3PO4 hybrid (mass ratio=1:4) exhibited the best activity, which was much higher than that of bulk-g-C3N4/Ag3PO4 composite under the same conditions. The enhanced activities should be mainly ascribed to the enhanced separation efficiency of photo-generated carriers, which was proved by the photoluminescence (PL) spectra measurement. Controlled experiments proved that O2(-) and h(+) played the chief role in the degradation process. A possible Z-scheme degradation mechanism of organic contaminant over g-C3N4/Ag3PO4 hybrid was proposed. Copyright © 2017. Published by Elsevier B.V.

  18. A chemical bath deposition route to facet-controlled Ag{sub 3}PO{sub 4} thin films with improved visible light photocatalytic activity

    Energy Technology Data Exchange (ETDEWEB)

    Gunjakar, Jayavant L.; Jo, Yun Kyung; Kim, In Young; Lee, Jang Mee; Patil, Sharad B. [Department of Chemistry and Nanoscience, College of Natural Sciences, Ewha Womans University, Seoul 03760 (Korea, Republic of); Pyun, Jae-Chul [Department of Materials Science and Engineering, College of Engineering, Yonsei University, Seoul (Korea, Republic of); Hwang, Seong-Ju, E-mail: hwangsju@ewha.ac.kr [Department of Chemistry and Nanoscience, College of Natural Sciences, Ewha Womans University, Seoul 03760 (Korea, Republic of)

    2016-08-15

    A facile, economic, and reproducible chemical bath deposition (CBD) method is developed for the fabrication of facet-controlled Ag{sub 3}PO{sub 4} thin films with enhanced visible light photocatalytic activity. The fine-control of bath temperature, precursor, complexing agent, substrate, and solution pH is fairly crucial in preparing the facet-selective thin film of Ag{sub 3}PO{sub 4} nanocrystal. The change of precursor from silver nitrate to silver acetate makes possible the tailoring of the crystal shape of Ag{sub 3}PO{sub 4} from cube to rhombic dodecahedron and also the bandgap tuning of the deposited films. The control of [Ag{sup +}]/[phosphate] ratio enables to maximize the loading amount of Ag{sub 3}PO{sub 4} crystals per the unit area of the deposited film. All the fabricated Ag{sub 3}PO{sub 4} thin films show high photocatalytic activity for visible light-induced degradation of organic molecules, which can be optimized by tailoring the crystal shape of the deposited crystals. This CBD method is also useful in preparing the facet-controlled hybrid film of Ag{sub 3}PO{sub 4}–ZnO photocatalyst. The present study clearly demonstrates the usefulness of the present CBD method for fabricating facet-controlled thin films of metal oxosalt and its nanohybrid. - Highlights: • The crystal facet of Ag{sub 3}PO{sub 4} films can be tuned by chemical bath deposition. • The crystal shape of Ag{sub 3}PO{sub 4} is tailorable from cube to rhombic dodecahedron. • Facet-tuned Ag{sub 3}PO{sub 4} film shows enhanced visible light photocatalyst activity.

  19. Studies of {sup 194,195,197}Po

    Energy Technology Data Exchange (ETDEWEB)

    Carpenter, M.P.; Ahmad, I.; Crowell, B. [and others

    1995-08-01

    The energy systematics of low-lying polonium states show sudden changes near N = 114. The observed drops in the low-lying levels of {sup 196,198}Po relative to the heavier isotopes indicate significant changes in the underlying structure of these nuclei. It is thought that this change is due to the onset of vibrational collectivity brought about by the quadrupole interaction between neutron and proton-pairs. In order to extend the Po systematics even further, we measured, for the first time, states in {sup 194,195,197}Po using the {sup 28}Si + {sup 170}Yb reaction at a beam energy of 142 MeV. The beam was supplied by ATLAS, and the data were taken with 10 Compton-suppressed Ge detectors placed at the target position of the Fragment Mass Analyzer. Preliminary level schemes were constructed for {sup 194,195,197}Po based on {gamma}-{gamma} and {gamma}-FMA coincidences. The results for {sup 194}Po show that the 2{sup +} - 0{sup +} transition energy decreased in energy by 140 keV relative to {sup 196}Po suggesting that this nucleus moved beyond the vibrational limit to more collective motion. An extrapolation of the systematics predicts that the 2{sup +} energy could drop another 140 keV between {sup 194}Po and {sup 192}Po which would indicate the onset of rotational motion. Currently, we have an approved experiment to investigate the decay of yrast isomers in {sup 194}Po which will allow us to (1) confirm our earlier level scheme of {sup 194}Po, and (2) assess the experimental conditions needed for a future study of {sup 192}Po.

  20. Ergonomia nos dispositivos poéticos

    OpenAIRE

    Vasconcelos, Edmilson

    2004-01-01

    Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção. O presente estudo busca na Ergonomia a solução para uma problemática constatada na relação entre o espectador e as obras de arte participo-interativas da arte contemporânea - os dispositivos poéticos. Esta problemática vai, desde a destruição das obras através de participações conflituosas, até a inadequações institucionais de agentes oficiais do Sistema...

  1. REVIEW: TALES OF KHA BA DKAR PO

    Directory of Open Access Journals (Sweden)

    Jundan (Jasmine Zhang

    2015-03-01

    Full Text Available Review of: Jing Guo . 2012. Xue shan zhi shu [Tales of Kha ba dkar po] [ཁ་བ་དཀར་པོ]. Kunming: Yunnan People's Press. My favorite color is to add a little white on the whiteness, as if there was a snow-white eagle landing on a snow-covered mountain rock. My favorite color is to add a bit green on the greenness, as if there was an emerald parrot flying in the wild walnut woods. Deqin xianzi lyrics. These lyrics evoke a space beyond a sense of realism. In his book, Tales of Kha ba dkar po (ToK, Guo mentions these lines three times, suggesting a transcendental experience one may encounter in Tibetan areas while, at the same time, humbled by the mindset of human nature relations enacted by Tibetan people. ToK is, in many ways, a valuable academic work. Guo's favorite lines of xianzi allude to a 'space-in-between' the secular and sacred, which provides a unique experience for a broad readership, and induces the readers to deeper reflections on topics such as 'nature/ culture', 'belief', 'rite', and 'life/ death'. ToK is one of nineteen contemporary anthropological and ethnological works conducted in Yunnan Province, Southwest China and published in the 'Anthropology and Ethnology series in Contemporary China'. In the preface for the series, Yin (2012 suggests that there are two primary reasons for the somewhat slow development of Chinese scholarship in the field of anthropology and ethnology. One is the historically Han-centered intellectual atmosphere, and the other is the ideological ambivalence that ethnic culture has faced since the establishment of the People's Republic of China. In this context, Guo's longitudinal academic and intellectual engagement with the Tibetan communities in northwest Yunnan is included in this series as part of the increasing recognition of the significance of understanding southwest China's complex ethnic and cultural diversity.

  2. Restauration des potentialités de sols dégradés à l’aide du zaï et des cordons pierreux à l’ouest du Burkina Faso

    DEFF Research Database (Denmark)

    Yameéogo, Jerome; Somé, Antoine; Lykke, Anne Mette

    2013-01-01

    of sorghum (Sorghum bicolor) were measured. Soil samples were taken and analyzed. Infiltration rate was measured with a two double ring infiltrometer. The results show that “zaï” and “zaï combined with stone-rows” are transferable in the South-Sudanian zone. They allowed a better development of the sorghum...

  3. Separation and electrodeposited of {sup 210} Po; Separacion y electrodeposito de {sup 210} Po

    Energy Technology Data Exchange (ETDEWEB)

    Ordonez R, E.; Iturbe G, J.L

    1991-12-15

    Presently work it was determined the selective separation of the {sup 210} Po that is in an uraniferous mineral, by means of acid leaching of the mineral and the purification was carried out by means of partition chromatography whose stationary phase is 2-ethylhexyl phosphoric acid (D{sub 2}EHPA), it has been possible to isolate the {sup 210} Po of the rest of the radioactive elements that conform the family 4 N{sup +2}, the optimal elutriation conditions of this element were settled down of manner of not dragging other radioelements. Another of the achievements presented in this communication has been the electrodeposition of this element has more than enough stainless steel discs with a superior yield to 95%. (Author)

  4. Priprava robotiziranega sistema ACMA XR701 in obračalne mize za postopke 3D frezanja

    OpenAIRE

    Sekirnik, Matija

    2015-01-01

    Namen diplomske naloge je razviti sistem pretvorbe CNC programa v format, ki ga razume robot ACMA XR 701 do mere, da ga bo mogoče uporabljati s povprečnim znanjem operaterja CNC tehnologij. Na začetku diplomske naloge so na splošno opisani industrijski roboti, ki se uporabljajo v praksi. Opisan je tudi robot ACMA XR 701. Drugi del diplomske naloge je posvečen postopku modeliranja ter pridobitev CNC programa iz programa Siemens NX 8.5 ter njegova pretvorba v programu Microsoft Excel, ki je ...

  5. Crystallization and preliminary studies of the DNA-binding domain Za from ADAR1 complexed to left-handed DNA.

    Science.gov (United States)

    Schwartz, T; Shafer, K; Lowenhaupt, K; Hanlon, E; Herbert, A; Rich, A

    1999-07-01

    The proteolytically defined Z-DNA binding domain Za of human adenosine deaminase type 1 (hADAR1) has been crystallized in complex with the DNA oligomer d(TCGCGCG). The crystals were obtained from a solution containing ammonium sulfate as precipitating agent and belong to the tetragonal space group P4212. A complete diffraction data set has been collected to a resolution of 2.4 A. The unit-cell dimensions are a = b = 85.9, c = 71.3 A. A Raman spectrum of the complex indicates that the DNA in the complex adopts the left-handed Z conformation.

  6. POBOLJŠANJE UČINKOVITOSTI PRODAVAČA U VELEPRODAJNIM TVRTKAMA PUTEM ALATA ZA AUTOMATIZACIJU PRODAJE

    OpenAIRE

    Berisha Qehaja, Albana; Kutllovci, Enver; Berisha Namani, Mihane

    2016-01-01

    Glavna svrha ovog rada je doprinos raspravi o tome dolazi li do poboljšanja učinkovitosti prodavača kroz upotrebu alata za automatizaciju prodaje. Obavljeno je istraživanje na uzorku od tri lokalne tvrtke u Republici Kosovo, koje se bave distribucijom robe široke potrošnje (FMCG, fast-moving consumer goods). Ispitano je 58 zaposlenika lokalnih tvrtki „X“, „Y“ i „Z“. Ova je tema izabrana jer veleprodajne tvrtke koje se bave distribucijom robe široke potrošnje na Kosovu prolaze kroz tranziciju ...

  7. Učinak fluoridirane paste za zube na remineralizaciju cakline i mikrotvrdoću nakon demineralizacije in vitro

    OpenAIRE

    Ambarkova, Vesna; Goršeta, Kristina; Glavina, Domagoj; Škrinjarić, Ilija

    2011-01-01

    Svrha: Svrha rada bila je procijeniti utjecaj komercijalnih pasta za zube s različitom formulom fluorida na remineralizaciju površine cakline. Materijali i metode: Pripremljeni su caklinski blokovi te, uz hlađenje vodom, polirani karborundnim diskovima različite finoće (320, 600 i 1200 grita). Nakon toga su nasumce podijeljeni u sedam skupina. Uzorci su bili izvrgnuti svakodnevnom režimu koji se sastojao od dvaju jednominutnih četkanja – jednim nakon šestosatne demineralizacije i drugim nakon...

  8. Kompleks felodipina s β-ciklodekstrinom kao aktivnom ovojnicom za vremenski odgođenu terapiju hipertenzije

    OpenAIRE

    PAGAR, KUNAL P.; Vavia, Pradeep R.

    2012-01-01

    U radu je opisan razvoj kronoterapijskog pripravka felodipina (FD) za brzo oslobađanje ljekovite tvari nakon određenog vremenskog razdoblja u liječenju hipertenzije. U tom pripravku FD kompleks sa ciklodekstrinom (ljekovita tvar) obavijen je slojem koji bubri i obložen etilcelulozom (netopljivi vodopropusni polimer). Oslobađanje iz FD kompleksa tri puta je povećano u odnosu na oslobađanje čistog FD. Povećanje količine i brzine oslobađanja posljedica je amorfizacije felodipina, što se pokazalo...

  9. Poboljšani algoritam optimizacije za prerazmještaj sheme mreže nakon blokiranja energetskog sustava

    OpenAIRE

    Liang, Haiping

    2015-01-01

    Prerazmještaj sheme mreže važan je zadatak tijekom restauracije energetskog sustava poslije blokiranja. U radu se razmatra nepredvidljivost vremena restauracije i uspješnosti brzine restauracije tijekom prerazmještaj sheme mreže. Vrijeme restauracije dalekovoda i transformatora, granično vrijeme pokretanja jedinica i brzina restauracije izabrani su kao trapezoidne fuzzy varijable. Optimalni model za prerazmještaj sheme mreže poslije blokiranja energetskog sustava izrađen je na osnovu fuzzy ch...

  10. Integrirani pretvornik za napajanje pogona in baterij električnega vozila v režimu napajanja pogona

    OpenAIRE

    2014-01-01

    Sodobni čas si človek težko predstavlja brez osebne mobilnosti in avtomobilov. Primarni energetski vir za pogon vozil še vedno ostajajo fosilna goriva, čeprav se v zadnjem času vse bolj vpeljujejo alternativna pogonska sredstva. Alternativo konvencionalnim vozilom z motorjem z notranjim izgorevanjem predstavljajo električna vozila, ki zaradi izboljšav v tehnologiji pogonskih sklopov in hranilnikov energije, postajajo vse bolj konkurenčna in splošno razširjena. Kljub dejstvu, da so električna ...

  11. Bezpečnostní testování zařízení s Bluetooth

    OpenAIRE

    Hlaváček, Jan

    2017-01-01

    Cílem práce je rozbor a soupis bezpečnostních rizik technologie Bluetooth, sestavení Bluetooth adaptéru a návrh a sestavení testovacích postupů, které pomohou vyhodnotit bezpečnost testovaného zařízení. The aim of the thesis is analysis and inventory security risks of Bluetooth technology, assembly Bluetooth adapter and proposal and poposal of testing procedures, which will helps evaluate security of tested device. C

  12. Procjena citotoksičnosti materijala za prekrivanje zubne pulpe u uvjetima in vitro: usporedno istraživanje

    OpenAIRE

    Poggio, Claudio; Ceci, Matteo; Dagna, Alberto; Beltrami, Riccardo; Colombo, Marco; Chiesa, Marco

    2015-01-01

    Direktnim prekrivanjem zubne pulpe štiti se njena izložena površina kako bi se zadržala vitalnost te očuvala funkcionalna i biološka aktivnost. Cilj ovoga istraživanja bio je usporediti biokompatibilnost sedam različitih materijala za prekrivanje zubne pulpe u uvjetima in vitro: Dycal®, Calcicur®, Calcimol LC®, TheraCal LC®, ProRoot MTA®, MTA-Angelus® i Biodentine®. Primjenom metode Transwell insert® i testa preživljenja stanica s bojom Alamar Blue® procijenili smo citokompatibilnost navedeni...

  13. Effect of Phosphate Salts (Na3PO4, Na2HPO4, and NaH2PO4) on Ag3PO4 Morphology for Photocatalytic Dye Degradation under Visible Light and Toxicity of the Degraded Dye Products

    NARCIS (Netherlands)

    Amornpitoksuk, P; Intarasuwan, K; Suwanboon, S; Baltrusaitis, J.

    2013-01-01

    Ag3PO4 was synthesized by the precipitation method using three different types of phosphate salts (Na3PO4, Na2HPO4, and NaH2PO4) as a precipitating agent. Hydrolysis of each phosphate salt gave a specific pH that affected the purity and morphology of the prepared Ag3PO4. The Ag3PO4 prepared from Na2

  14. The Chloroplast Tubulin Homologs FtsZA and FtsZB from the Red Alga Galdieria sulphuraria Co-assemble into Dynamic Filaments.

    Science.gov (United States)

    Chen, Yaodong; Porter, Katie; Osawa, Masaki; Augustus, Anne Marie; Milam, Sara L; Joshi, Chandra; Osteryoung, Katherine W; Erickson, Harold P

    2017-03-31

    FtsZ is a homolog of eukaryotic tubulin and is present in almost all bacteria and many archaea, where it is the major cytoskeletal protein in the Z ring, required for cell division. Unlike some other cell organelles of prokaryotic origin, chloroplasts have retained FtsZ as an essential component of the division machinery. However, chloroplast FtsZs have been challenging to study because they are difficult to express and purify. To this end, we have used a FATT tag expression system to produce as soluble proteins the two chloroplast FtsZs from Galdieria sulphuraria, a thermophilic red alga. GsFtsZA and GsFtsZB assembled individually in the presence of GTP, forming large bundles of protofilaments. GsFtsZA also assembled in the presence of GDP, the first member of the FtsZ/tubulin superfamily to do so. Mixtures of GsFtsZA and GsFtsZB assembled protofilament bundles and hydrolyzed GTP at a rate approximately equal to the sum of their individual rates, suggesting a random co-assembly. GsFtsZA assembly by itself in limiting GTP gave polymers that remained stable for a prolonged time. However, when GsFtsZB was added, the co-polymers disassembled with enhanced kinetics, suggesting that the GsFtsZB regulates and enhances disassembly dynamics. GsFtsZA-mts (where mts is a membrane-targeting amphipathic helix) formed Z ring-like helices when expressed in Escherichia coli Co-expression of GsFtsZB (without an mts) gave co-assembly of both into similar helices. In summary, we provide biochemical evidence that GsFtsZA assembles as the primary scaffold of the chloroplast Z ring and that GsFtsZB co-assembly enhances polymer disassembly and dynamics. © 2017 by The American Society for Biochemistry and Molecular Biology, Inc.

  15. Preparation of Partial Spherical LiFePO4 Using Spherical Li3PO4 as Aprecursor%以球形Li3PO4制备球形LiFePO4

    Institute of Scientific and Technical Information of China (English)

    于春洋; 潘志红

    2007-01-01

    以曲拉通100作表面活性剂,用超声波法制备了球形度较好、平均粒径为10μm的球形Li3PO4.以球形Li3PO4为前驱体制备了部分球形的LiFePO4,并对其电化学性能进行了研究.由该法制备的LiFePO4振实密度为1.20 g/cm3,较其他方法制备的LiFePO4密度有所提高.

  16. Anisotropic lithium ion migration in LiFePO4

    Science.gov (United States)

    Park, S. B.; Park, C. K.; Hwang, J. T.; Cho, W. I.; Jang, H.

    2011-12-01

    An anisotropic behavior of lithium ion migration in LiFePO4 is investigated using the cathode particles after chemical delithiation. A phase contrast of a LiFePO4 particle validating the directional property is also found. It suggests that the lithium ion migration path is limited to the [010] direction and the phase boundary between LiFePO4 and FePO4 is perpendicular [010]. The symmetric phase boundary inside the LiFePO4 particle is contrary to the non-directional core-shell model reported by others. The molecular dynamics simulation confirms the crystallographic direction with the lowest energy for lithium ion migration.

  17. Effects of Nb-doped on the structure and electrochemical performance of LiFePO{sub 4}/C composites

    Energy Technology Data Exchange (ETDEWEB)

    Ma, Zhipeng [Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004 (China); Shao, Guangjie, E-mail: shaoguangjie@ysu.edu.cn [Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004 (China); State Key Laboratory of Metastable Materials Science and Technology, Qinhuangdao 066004 (China); Wang, Guiling; Zhang, Ying; Du, Jianping [Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004 (China)

    2014-02-15

    The olivine-type niobium doping Li{sub 1−x}Nb{sub x}FePO{sub 4}/C (x=0, 0.005, 0.010, 0.015, 0.025) cathode materials were synthesized via a two-step ball milling solid state reaction. The effects of Nb doping were charactered by X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), galvanostatic intermittent titration technique (GITT), cyclic voltammetry (CV), electrochemical impedance spectra (EIS) and galvanostatic charge–discharge. It is found that Nb doping enlarges the interplanar distance of crystal plane parallel to [0 1 0] direction in LiFePO{sub 4}. In other words, it widens the one dimensional diffusion channels of Li{sup +} along the [0 1 0] direction. Electrochemical test results indicate that the Li{sub 0.99}Nb{sub 0.01}FePO{sub 4}/C composite exhibits the best electrochemical performance with initial special discharge capacity of 139.3 mA h g{sup −1} at 1 C rate. The present synthesis route is promising in making the solid state reaction method more practical for preparation of the LiFePO{sub 4} material. - Graphical abstract: The proper amount of Nb doping widens the one dimensional diffusion channels of Li{sup +} along the [0 1 0] direction. Display Omitted - Highlights: • The Nb doping LiFePO{sub 4}/C is prepared by a facile two-step ball milling solid state reaction. • The sample possesses the better high-rate performance. • The tap density of Li{sub 0.99}Nb{sub 0.01}FePO{sub 4}/C sample is 1.76 g cm{sup −3}.

  18. Preučevanje alternativnih škropilnih programov za zatiranje navadne hruševe bolšice (Cacopsylla pyri L.)

    OpenAIRE

    Voglar, Žan

    2017-01-01

    Za primerjanje učinkovitosti alternativnih insekticidov za zatiranje hruševe bolšice Cacopsylla pyri L. s šestimi škropilnimi programi, je bil izveden poljski poskus v nasadu hrušk sorte 'Viljamovka'. Poleg bolšice smo proučevali še škodljivce Dysaphis pyri, Cydia spp., ter določene vrste stenic in zavijačev lupine sadja. Ob poskusnem standardu (acetamprid, integriran škropilni program - INT) smo testirali še učinkovitost aktivnih snovi: kaolin, žvepleno-apnena brozga (ŽAB), kombinacija mat...

  19. VISOKO GOSPODARSKO UČILIŠTE U KRIŽEVCIMA PRILOG OBRAZOVANJU ZA ODRŽIVU I EKOLOŠKU POLJOPRIVREDU

    OpenAIRE

    2009-01-01

    Rad daje pregled uloge koju ima Visoko gospodarsko učilište u Križevcima u području stručnih studija za poljoprivredu u Hrvatskoj i doprinos visokoškolskom obrazovanju za održivu i ekološku poljoprivredu. U radu se također donosi kratki opis povijesnoga razvoja križevačkoga Učilišta i opis suvremenih studijskih programa na razini stručnog i specijalističkog diplomskog studija te specijalističkih seminara u sklopu cjeloživotnoga učenja.

  20. Savremeno naoružanje i vojna oprema za broj 4-2006 / Modern weapons and military equipment for issue 4-2006 / Современное вооружение и военное оборудование за но. 4-2006

    Directory of Open Access Journals (Sweden)

    Mirko Krbavac

    2006-10-01

    Full Text Available NOVA PUŠKA M14 ERA; PROTIVTENKOVSKI RAKETNI SISTEM NLAW; REKORDNI DOMETI HAUBICA 155 mm S PROJEKTILIMA V-LAP; NIŠAN ZA AUTOMATSKI BACAČ GRANATA; MODIFIKOVANO VOZILO RATEL 6×6; DVE – POJAČIVAČ VIDLJIVOSTI ZA VOZAČE; ORUŽNA STANICA PROTEKTOR ZA TENK LEOPARD 2A4; PRVA JAVNA PREZENTACIJA VOZILA PUMA;RADIO-DETEKTOR RK-1025; PRENOSNI RADAR ZA BORBENO IZVIÐANJE OWL; BRODSKI MITRALJESKI SISTEM MINI-TAJFUN; LAKO PROTIVOKLOPNO ORUŽJE M72 LAW; LAKI MREŽNI SISTEM ZA VATRENU PODRŠKU; NOVA MUNICIJA 40 mm; PRIBORI ZA NOĆNO OSMATRANJE MU-3; PROTIVMINSKI KOMPLET ZA TERENSKA VOZILA; SPECIJALNA PATROLNA VOZILA PANHARD 4×4; MULTIFUNKCIONALNI RADAR MF-STAR; BESPILOTNA LETELICA BARRACUDA; OPTIMIZACIJA BORBENIH VOZILA ZA UPOTREBU U URBANIM USLOVIMA; KOREJSKI BORBENI TENK K2; OKLOPNI LAND ROVER; PANORAMSKA ORUŽNA STANICA ZA TENKOVE.

  1. Asian Facilities

    Science.gov (United States)

    Nakahata, M.

    2011-04-01

    Asian underground facilities are reviewed. The YangYang underground Laboratory in Korea and the Kamioka observatory in Japan are operational and several astrophysical experiments are running. Indian Neutrino Observatory(INO) and China JinPing Underground Laboratory (CJPL) are under construction and underground experiments are being prepared. Current activities and future prospects at those underground sites are described.

  2. Judd–Ofelt analysis of spectroscopic properties of Eu{sup 3+} doped KLa(PO{sub 3}){sub 4}

    Energy Technology Data Exchange (ETDEWEB)

    Ferhi, M., E-mail: ferhi.mounir@gmail.com [Laboratoire de Physico-chimie des Matériaux Minéraux et leurs Applications, Centre National des Recherches en Sciences des Matériaux, Technopole de Borj Cedria, BP 73, 8027 Soliman (Tunisia); Bouzidi, C.; Horchani-Naifer, K. [Laboratoire de Physico-chimie des Matériaux Minéraux et leurs Applications, Centre National des Recherches en Sciences des Matériaux, Technopole de Borj Cedria, BP 73, 8027 Soliman (Tunisia); Elhouichet, H. [Laboratoire de Physico-chimie des Matériaux Minéraux et leurs Applications, Centre National des Recherches en Sciences des Matériaux, Technopole de Borj Cedria, BP 73, 8027 Soliman (Tunisia); Département de Physique, Faculté des Sciences de Tunis, Campus ElManar, 2092 Tunis (Tunisia); Ferid, M. [Laboratoire de Physico-chimie des Matériaux Minéraux et leurs Applications, Centre National des Recherches en Sciences des Matériaux, Technopole de Borj Cedria, BP 73, 8027 Soliman (Tunisia)

    2015-01-15

    Based on Judd–Ofelt (J–O) theory, the intensity parameters (Ω{sub 2} and Ω{sub 4}) have been evaluated from the emission spectra of KLa{sub (1−x)}Eu{sub x}(PO{sub 3}){sub 4} (where x=2, 5, 10, 15, 20 and 30 mol%) polycrystalline powders as a function of Eu{sup 3+} ion concentration. The registered trend (Ω{sub 2}<Ω{sub 4}) reveals the ionic character of the La(Eu)–O bonds as well as a relatively high symmetry environment around the rare earth ion (RE) site in KLa(PO{sub 3}){sub 4} as compared to other host matrix. From these intensity parameters various radiative properties like spontaneous emission probability (A), branching ratio (β{sub R}), stimulated emission cross-section (σ) and the radiative lifetime (τ{sub R}) have been calculated. The decay profiles for the {sup 5}D{sub 0} excited level of Eu{sup 3+} in KLa(PO{sub 3}){sub 4} have been found to be single exponential and independent of Eu{sup 3+} ion concentration even at 30 mol%. In comparison with other Eu{sup 3+}-doped materials, KLa(PO{sub 3}){sub 4}:Eu{sup 3+} has a long lifetime, low multiphonon relaxation rates (W{sub NR}), high quantum efficiency (η) and better optical gain parameter (σxτ{sub exp}). The determined radiative properties reveal the usefulness of KLa{sub (1−x)}Eu{sub x}(PO{sub 3}){sub 4} in developing visible red lasers as well as optical display devices at around 613 nm. Our results were discussed as a function of Eu{sup 3+} concentration, crystal structure of KLa(PO{sub 3}){sub 4} and particle-size distributions. - Highlights: • Judd–Ofelt theory has been applied to KLa{sub (1−x)}Eu{sub x}(PO{sub 3}){sub 4}. • Radiative properties of KLa{sub (1−x)}Eu{sub x}(PO{sub 3}){sub 4} have been determined. • The obtained results were discussed and compared to other hosts matrix. • KLa{sub (1−x)}Eu{sub x}(PO{sub 3}){sub 4} can be used in red lasers and optical display devices.

  3. Immunoblot profiles of sera from laboratory rats naturally infected with Mycoplasma pulmonis and technicians exposed to infected animal facilities Imunoeletroforese do soro de ratos naturalmente infectados com Mycoplasma pulmonis e bioteristas expostos a biotérios infectados

    Directory of Open Access Journals (Sweden)

    Márcio Oliveira Delgado

    2001-12-01

    Full Text Available Mycoplasma pulmonis have been isolated in about 10(5 CFU/mL from tracheal aspirates of rats from conventional animal facilities in São Paulo. The mycoplasma transmission by aerosol may happen from an infected rat to a healthy one at distances up to 120 cm. This condition also favors the technicians contamination. As this infection is unknown in humans, in this study the immunoblot profiles to M. pulmonis of sera from rats were compared to those presented by animal facility technicians. About 32 proteins from 11 to 230 kDa (kilodaltons were recognized by the sera from rats naturally infected with M. pulmonis. Sera from technicians responsible for the cleaning and sanitation of cages of infected animals for more than seven years recognized about 10 proteins of this bacteria. Sera from individuals with shorter working time or that had never been exposed to such environment recognized few proteins. Proteins about 117 and 95 kDa were recognized by human and rat sera and by the negative controls. Although a positive human serum against M. pulmonis is unknown, this study established a temporary profile of protein recognition of human serum against such mycoplasma.Mycoplasma pulmonis foi isolado em aproximadamente 10(5 UFC/mL do lavado traqueal de ratos mantidos em biotérios convencionais da cidade de São Paulo. A transmissão do micoplasma por aerossol pode ocorrer entre os animais em até 120 cm. Esta condição favorece a sua transmissão para os bioteristas que também são expostos a este microrganismo. Como esta colonização é desconhecida em humanos, as imunoeletroforeses dos soros destes indivíduos foram comparados à com os dos ratos. Aproximadamente 32 proteínas de 11 a 230 kDa foram reconhecidas pelo soros dos ratos naturalmente infectados com M. pulmonis. Os soros dos bioteristas que estão envolvidos por mais de 7 anos na higenização das caixas com animais infectados reconheceram cerca de 10 proteínas deste microrganismo. O soro

  4. High-Performance Olivine NaFePO4 Microsphere Cathode Synthesized by Aqueous Electrochemical Displacement Method for Sodium Ion Batteries.

    Science.gov (United States)

    Fang, Yongjin; Liu, Qi; Xiao, Lifen; Ai, Xinping; Yang, Hanxi; Cao, Yuliang

    2015-08-19

    Olivine NaFePO4/C microsphere cathode is prepared by a facile aqueous electrochemical displacement method from LiFePO4/C precursor. The NaFePO4/C cathode shows a high discharge capacity of 111 mAh g(-1), excellent cycling stability with 90% capacity retention over 240 cycles at 0.1 C, and high rate capacity (46 mAh g(-1) at 2 C). The excellent electrochemical performance demonstrates that the aqueous electrochemical displacement method is an effective and promising way to prepare NaFePO4/C material for Na-based energy storage applications. Moreover, the Na2/3FePO4 intermediate is observed for the first time during the Na intercalation process through conventional electrochemical techniques, corroborating an identical two-step phase transition reaction both upon Na intercalation and deintercalation processes. The clarification of the electrochemical reaction mechanism of olivine NaFePO4 could inspire more attention on the investigation of this material for Na ion batteries.

  5. Degradation of microcystin-LR by highly efficient AgBr/Ag3PO4/TiO2 heterojunction photocatalyst under simulated solar light irradiation

    Science.gov (United States)

    Wang, Xin; Utsumi, Motoo; Yang, Yingnan; Li, Dawei; Zhao, Yingxin; Zhang, Zhenya; Feng, Chuanping; Sugiura, Norio; Cheng, Jay Jiayang

    2015-01-01

    A novel photocatalyst AgBr/Ag3PO4/TiO2 was developed by a simple facile in situ deposition method and used for degradation of mirocystin-LR. TiO2 (P25) as a cost effective chemical was used to improve the stability of AgBr/Ag3PO4 under simulated solar light irradiation. The photocatalytic activity tests for this heterojunction were conducted under simulated solar light irradiation using methyl orange as targeted pollutant. The results indicated that the optimal Ag to Ti molar ratio for the photocatalytic activity of the resulting heterojunction AgBr/Ag3PO4/TiO2 was 1.5 (named as 1.5 BrPTi), which possessed higher photocatalytic capacity than AgBr/Ag3PO4. The 1.5 BrPTi heterojunction was also more stable than AgBr/Ag3PO4 in photocatalysis. This highly efficient and relatively stable photocatalyst was further tested for degradation of the hepatotoxin microcystin-LR (MC-LR). The results suggested that MC-LR was much more easily degraded by 1.5 BrPTi than by AgBr/Ag3PO4. The quenching effects of different scavengers proved that reactive h+ and •OH played important roles for MC-LR degradation.

  6. Mechanical and thermal-expansion characteristics of Ca10(PO46(OH2-Ca3(PO42 composites

    Directory of Open Access Journals (Sweden)

    Ruseska G.

    2006-01-01

    Full Text Available Three types of composites consisting of Ca10(PO46(OH2 and Ca3(PO42 with composition: 75% (wt Ca10(PO46(OH2: 25%(wt Ca3(PO42; 50%(wt Ca10(PO46(OH2: 50%(wtCa3(PO42 and 25 %(wt Ca10(PO46(OH2: 75%(wt Ca3(PO42 were the subject of our investigation. Sintered compacts were in thermal equilibrium, which was proved by the absence of hysteresis effect of the dependence ΔL/L=f(T during heating /cooling in the temperature interval 20-1000-200C. Sintered compacts with the previously mentioned composition possess 26-50% higher values of the E-modulus, G-modulus and K-modulus indicating the presence of a synergism effect. Several proposed model equations for predicting the thermal expansion coefficient in dependence of the thermal and elastic properties of the constitutive phases and their volume fractions, given by: Turner, Kerner, Tummala and Friedberg, Thomas and Taya, were used for making correlations between mechanical and thermal-expansion characteristics of the Ca10(PO46(OH2 - Ca3(PO42 composites. Application of the previously mentioned model equations to all kinds of composites leads to the conclusion that the experimentally obtained results for the thermal expansion coefficient are in an excellent agreement with the theoretical calculated values on account of the volume fraction of each constitutive phase and with all applied model equations, with a coefficient of correlation from 98.16-99.86 %.

  7. Environmental Management Waste Management Facility Waste Lot Profile for the K-770 Scrap Yard Soils and Miscellaneous Debris, East Tennessee Technology Park, Oak Ridge, Tennessee - EMWMF Waste Lot 4.12

    Energy Technology Data Exchange (ETDEWEB)

    Davenport M.

    2009-04-15

    Waste Lot 4.12 consists of approximately 17,500 yd{sup 3} of low-level, radioactively contaminated soil, concrete, and incidental metal and debris generated from remedial actions at the K-770 Scrap Metal Yard and Contaminated Debris Site (the K-770 Scrap Yard) at the East Tennessee Technology Park (ETTP). The excavated soil will be transported by dump truck to the Environmental Management Waste Management Facility (EMWMF). This profile provides project-specific information to demonstrate compliance with Attainment Plan for Risk/Toxicity-based Waste Acceptance Criteria at the Oak Ridge Reservation, Oak Ridge, Tennessee (DOE 2001). The K-770 Scrap Yard is an approximately 36-acre storage area located southwest of the main portion of ETTP, outside the security perimeter fence in the Powerhouse Area adjacent to the Clinch River. The K-770 area was used to store radioactively contaminated or suspected contaminated materials during and previous to the K-25 Site cascade upgrading program. The waste storage facility began operation in the 1960s and is estimated to at one time contain in excess of 40,000 tons of low-level, radioactively contaminated scrap metal. Scrap metal was taken to the site when it was found to contain alpha or beta/gamma activity on the surface or if the scrap metal originated from a process building. The segregated metal debris was removed from the site as part of the K-770 Scrap Removal Action (RA) Project that was completed in fiscal year (FY) 2007 by Bechtel Jacobs Company LLC (BJC). An area of approximately 10 acres is located in EUs 29 and 31 where the scrap was originally located in the 100-year floodplain. In the process of moving the materials around and establishing segregated waste piles above the 100-year floodplain, the footprint of the site was expanded by 10-15 acres in EUs 30 and 32. The area in EUs 29 and 31 that was cleared of metallic debris in the floodplain was sown with grass. The areas in EUs 30 and 32 have some scattered

  8. Effect of aging parameters on the micro structure and properties of ZA-27/aluminite metal matrix composites

    Energy Technology Data Exchange (ETDEWEB)

    Sharma, S.C.; Sastry, Shanta; Krishna, M

    2002-11-18

    The effect of heat treatment and aging at various temperatures for different intervals of time on the microstructure of ZA-27 matrix alloy and aluminite particulate reinforced ZA-27 alloy metal matrix composites (MMCs) has been studied using micro hardness, electrical resistivity, X-ray diffraction and differential scanning calorimetry (DSC) data. The composite samples were aged at 32, 80, 180, and 250 deg. C after solutionizing at 320 deg. C for 3 h followed by cold water quenching. The micro hardness values showed an initial increase reaching a peak value which was followed by a reduction in hardness values with increase in aging time. The trend followed by electrical resistivity was very similar to that of hardness. Further, the time to reach peak hardness decreased with increase in the weight percentage of the reinforcement. These results indicated that the aging and precipitation kinetics in the matrix alloy are significantly accelerated due to the presence of particulate reinforcement. Changes in the properties of the composites during aging are explained on the basis of micro structural alterations caused by the heat treatment.

  9. Modelovanje korisnika u sistemima za upravljanje sadržajem / The user modeling issues in the content management systems

    Directory of Open Access Journals (Sweden)

    Goran Šimić

    2005-01-01

    Full Text Available Sistemi za upravljanje informacionim sadržajima, zahvaljujući različitim funkcionalnim mogućnostima, vrlo su rasprostranjeni na Webu kao globalnoj mreži, i u lokalnim mrežama institucija i organizacija različitih namena. Oni omogućavaju potpuno administriranje informacionim sadržajima i njihovo dinamičko komponovanje i distribuciju. Iako postoje tehnološki preduslovi, ovi sistemi su fokusirani na sadržaje i nemaju podršku za njihovo personalizovano predstavljanje. Ovaj materijal opisuje mogućnosti proširivanja funkcionalnosti navedenih sistema radi adaptacije sadržaja koji se isporučuje korisnicima. / Owing to different functional possibilities, there are many content management systems (CMS on the Web and in the local networks of different organizations. They provide administering of different information content (delegation of content authoring and content using grants, as well as dynamical content composing and distribution. They are focused on their content. Although there are technology prerequisites, these systems lack content personalization. This paper describes the possibility of the CMS functional extending to adjust data structure and content with particular users' skills, interests and demands.

  10. Redetermination of β-Ba(PO32

    Directory of Open Access Journals (Sweden)

    Matthias Weil

    2014-02-01

    Full Text Available In comparison with the previous structure determination of the β-modification of barium catena-polyphosphate that was based on Weissenberg film data [Grenier et al. (1967. Bull. Soc. Fr. Minéral. Cristallogr. 90, 24–31], the current CCD-data-based redetermination reveals all atoms with anisotropic displacement parameters, standard uncertainties for the atomic coordinates, and the determination of the absolute structure. Moreover, a much higher accuracy in terms of the bond-length distribution for the polyphosphate chain, with two shorter and two longer P—O distances, was achieved. The structure consists of polyphosphate chains extending parallel to [100] with a periodicity of two PO4 tetrahedra. The Ba2+ cations are located between the chains and are surrounded by ten O atoms in the form of a distorted coordination polyhedron, with Ba—O distances ranging from 2.765 (3 to 3.143 (3 Å, also reflecting the higher precision of the current redetermination.

  11. Green management ubytovacích zařízení

    OpenAIRE

    Zachodilová, Hana

    2017-01-01

    The aim of the bachelor thesis is to evaluate the application of principles of green management in selected accommodation facilities. The first part of the thesis summarizes theoretical knowledge of the area of accommodation facilities, hotel management and green management. This information serves as a basis for the second part, which analyses the common and different principles of green management on practical examples in eight hotels. At first, analytical part deals with elements, which ar...

  12. Effect of organic additives on characteristics of carbon-coated LiCoPO4 synthesized by hydrothermal method

    Science.gov (United States)

    Maeyoshi, Yuta; Miyamoto, Shohei; Noda, Yusaku; Munakata, Hirokazu; Kanamura, Kiyoshi

    2017-01-01

    Carbon-coated LiCoPO4 particles are synthesized by one-pot hydrothermal process using three different organic additives (carboxymethylcellulose sodium salt (CMC), glucose, and ascorbic acid). The effect of the organic additives on particle size, morphology, nature of carbon coating, and electrochemical property of the resulting LiCoPO4 is investigated. CMC plays important roles to decrease the particle size and form well-covered carbon coating on the surface. Carbon-coated LiCoPO4 prepared using CMC delivers higher initial discharge capacity of 135 mA h g-1 at 0.1 C, and shows superior rate capability and cyclic performance than the other samples. The improved electrochemical characteristics are attributed to not only the fine particle which allows facile electronic and ionic transport, but also the high coverage of carbon coating which improves the electrical conductivity and prevents the irreversible reactions of the charged LiCoPO4 with electrolyte.

  13. Carbon nanostructures modified LiFePO4 cathodes for lithium ion battery applications: optimized porosity and composition

    Science.gov (United States)

    Mahmoud, Lama; Singh Lalia, Boor; Hashaikeh, Raed

    2016-12-01

    Lithium iron phosphate (LiFePO4) battery cathode was fabricated without using any metallic current collector and polymeric binder. Carbon nanostructures (CNS) were used as microbinders for LiFePO4 particles and at the same time as a 3D current collector. A facile and cost effective method of fabricating composite cathodes of CNS and LiFePO4 was developed. Thick electrodes with high loading of active material (20-25 mg cm-2) were obtained that are almost 2-3 folds higher than commercial electrodes. SEM images confirm that the 3D CNS conductive network encapsulated the LiFePO4 particles homogenously facilitating the charge transfer at the electrode-CNS interface. The composition, scan rate and porosity of the paper-like cathode were sequentially varied and their influence was systematically monitored by means of linear sweep cyclic voltammetry and AC electrochemical impedance spectroscopy. Addition of CNS improved the electrode’s bulk electronic conductivity, mechanical integrity, surface area and double layer capacitance, yet compromised the charge transfer resistance at the electrode-electrolyte interface. Based on a range of the tested binder-free electrodes, this study proposes that electrodes with 20 wt% CNS having 49 ± 2.5% porosity had realized best improvements of two folds and four folds in the electronic conductivity and diffusion coefficient, respectively.

  14. LiFePO_4/C via fluoride doping

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    Non-stoichiometric compound fluoride-doped LiFePO4/C cathode materials were synthesized via solid-state reaction using MgF2 and AlF3 as dopant. The fluoride-doped LiFePO4/C samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and electrochemical testing. The results show that the materials are well crystallized and fluoride doping cannot change the space structure of LiFePO4. Slight amounts of Fe2O3 with no fluoride impurity were ...

  15. Biogeochemical factors affecting the presence of 210Po in groundwater

    Science.gov (United States)

    Seiler, R.L.; Stillings, L.L.; Cutler, N.; Salonen, L.; Outola, I.

    2011-01-01

    The discovery of natural 210Po enrichment at levels exceeding 500 mBq/L in numerous domestic wells in northern Nevada, USA, led to a geochemical investigation of the processes responsible for its mobilization. 210Po activities in 63 domestic and public-supply wells ranged from below 1 mBq/L to 6590 ± 590 mBq/L, among the highest reported levels in the USA. There is little spatial or depth variability in 210Pb activity in study-area sediments and mobilization of a few percent of the 210Po in the sediments would account for all of the 210Po in water. Stable-isotope measurements indicate SO4 reduction has occurred in all 210Po contaminated wells. Sulfide species are not accumulating in the groundwater in much of Lahontan Valley, probably because of S cycling involving microbial SO4 reduction, abiotic oxidation of H2S to S0 by Mn(IV), followed by microbial disproportionation of S0 to H2S and SO4. The high pH, Ca depletion, MnCO3 saturation, and presence of S0 in Lahontan Valley groundwater may be consequences of the anaerobic S cycling. Consistent with data from naturally-enriched wells in Florida, 210Po activities begin to decrease when aqueous sulfide species begin to accumulate. This may be due to formation and precipitation of PoS, however, Eh–pH diagrams suggest PoS would not be stable in study-area groundwater. An alternative explanation for the study area is that H2S accumulation begins when anaerobic S cycling stops because Mn oxides are depleted and their reduction is no longer releasing 210Po. Common features of 210Po-enriched groundwater were identified by comparing the radiological and geochemical data from Nevada with data from naturally-enriched wells in Finland, and Florida and Maryland in the USA. Values of pH ranged from 9 in Nevada wells, indicating that pH is not critical in determining whether 210Po is present. Where U is present in the sediments, the data suggest 210Po levels may be elevated in aquifers with (1) SO4-reducing waters with low H2S

  16. poCAMon personal online continuous airmonitor; poCAMon online Personen Aerosolmonitor

    Energy Technology Data Exchange (ETDEWEB)

    Streil, T.; Oeser, V. [SARAD GmbH, Dresden (Germany)

    2015-07-01

    The poCAMon combines a very compact design with a high flow rate and long battery life. Its size and weight are still acceptable for carrying by one person. The unit measures long-lived aerosols as well as short-lived Radon/Thoron daughters by alpha spectroscopy and beta counting. The radioactive aerosols and particles are collected on the surface of a high resolution membrane filter. The alpha and beta decays on the filter are measured by a high-end semiconductor radiation detector (400 mm@). This allows a perfect separation of the different decay products. The increased pump rate (more than 3 l/ min) is suitable for lower detection limits. A sensor measures permanently the pressure drop on the filter in order to recognize an exhausted or perforated filter instantly. With the 3.8 Ah NiMH battery pack the poCAMon achieves an operation time of more than 30 hours. The quality control is a main issue of any radiation measurement. Therefore the poCAMon records a complete alpha spectrum for each measured value. This allows the monitoring of the device's perfect operation in each moment of the measurement. There are options for additional sensors for carbon monoxide and combustible gases as needed in underground mines. All measured data are stored in a 2GB memory card and can be accessed with a PC or laptop via a USB interface. Data transmission and device control can also be done via wireless ZigBee network or via a server for stationary operation with network access. A barometric pressure sensor and a GPS receiver are optional features of the device.

  17. Synthesis and Characterization of High Efficiency and Stable Spherical Ag3PO4 Visible Light Photocatalyst for the Degradation of Methylene Blue Solutions

    Directory of Open Access Journals (Sweden)

    Liqin Qin

    2015-01-01

    Full Text Available A facile method for the synthesis of Ag3PO4 visible light photocatalyst has been developed to improve the photocatalytic activity and stability. The as-prepared samples are investigated by X-ray powder diffraction, scanning electron microscopy, infrared spectroscopy, photoluminescence (PL spectroscopy, and UV-Vis diffuse reflectance spectroscopy techniques. The results reveal that the prepared Ag3PO4 has cube structure with a band gap of 2.26 eV. The as-prepared samples show higher photocatalytic activity for methylene blue (MB degradation than that of N-TiO2 under visible light irradiation.

  18. On Pure and (approximate) Strong Equilibria of Facility Location Games

    DEFF Research Database (Denmark)

    Hansen, Thomas Dueholm; Telelis, Orestis A.

    2008-01-01

    We study social cost losses in Facility Location games, where n selfish agents install facilities over a network and connect to them, so as to forward their local demand (expressed by a non-negative weight per agent). Agents using the same facility share fairly its installation cost, but every...... networks we prove upper and lower bounds on PoS, while an O(ln n) upper bound implied by previous work is tight for non-metric networks. We also prove a constant upper bound for the SPoA of metric networks when strong equilibria exist. For the weighted game on general networks we prove existence of e...

  19. Optimization of {sup 210}Po estimation in environmental samples using an improved deposition unit

    Energy Technology Data Exchange (ETDEWEB)

    Dubey, Jay Singh; Sahoo, Sunil Kumar; Mohapatra, Swagatika; Lenka, Pradyumna; Patra, Aditi Chakravarty; Thakur, Virender Kumar; Ravi, Pazhayath Mana; Tripathi, Raj Mangal [Bhabha Atomic Research Centre, Trombay, Mumbai (India). Health Physics Div.

    2015-06-01

    Measurement of {sup 210}Po in environmental matrices is important due to its very high specific activity, present in every compartment of the environment due to a daughter product of uranium ({sup 238}U), accumulative and highly toxic in nature. Conventional method for {sup 210}Po estimation is by auto-deposition onto both sides of a silver disc followed by alpha spectrometry of both the sides. A new deposition unit having the facility to hold the silver disc and magnetic stirring bar has designed and fabricated for {sup 210}Po estimation in which only one side is counted. In the conventional method, the total activity is distributed to the both sides of the silver disc and more counting time is required whereas in the improved deposition unit, only one side contain all the activity so that one time counting is required with better statistical significance. The same has been observed in spike recovery and water sample assessment. The tracer recovery in the conventional method was 72%-88% and 70%-85% whereas for the new deposition the recovery is 87%-99% and 78%-94% for spike recovery study and environmental samples, respectively. Certified tracers were analysed for the assurance of the reliability of the method and the results were in good agreement with the recommended value with a relative error <20%. The MDA of the method is 1.5 mBq for the estimation of {sup 210}Po at 3σ confidence level, 86400 s. counting time and 100 ml of water sample, taking the detector efficiency and chemical yield into consideration. The results obtained from both the methods were compared statistically. χ{sup 2} test, repeatability parameters, relative bias measurement and linearity test was performed for both the methods. The % difference between the two methods in terms of linearity is 0.2%. From the χ{sup 2} test it can be concluded that the measured data by two methods falls within 99% confidence interval. The modified deposition unit enhance the statistical significance, reduce

  20. Methodology for {sup 210}Po extraction from underground waters; Metodologia para a extracao de Po-210 em aguas subterraneas

    Energy Technology Data Exchange (ETDEWEB)

    Conceicao, Fabiano Tomazini da; Bonotto, Daniel Marcos [UNESP, Rio Claro, SP (Brazil). Inst. de Geociencias e Ciencias Exatas. Dept. de Petrologia e Metalogenia

    1998-07-01

    This work describes the first results obtained by the implementation of the methodology of {sup 210}Po extraction from underground waters. This methodology was first tested in the analysis of uranite sample from the Pocos de Caldas plateau (MG-Brazil) which constitutes a important natural source of {sup 210}Po. For the uranine sample a counting rate of 1.67 cpm for {sup 210}Po was obtained and for underground water 0.3 cpm was obtained which demonstrates that the used methodology is efficient for water analysis.

  1. Microstructure and Properties of CePO4 Ceramic

    Institute of Scientific and Technical Information of China (English)

    WANG Lijuan; DU Haiyan; OU Xiujuan

    2006-01-01

    Cerium phosphate powders were synthesized by direct solid liquid reaction of cerium dioxide and phosphate acid at the Ce∶P ratio of 1∶1. Phase-pure and fine grain size CePO4 powers could be obtained by calcining the as received powders at the temperature higher than 600 ℃. It is demonstrated that the grain size and morphology of the CePO4 powders were calcined at various temperatures. An interesting layered crystal structure and a series of microcracks that cross and occur along the extrusion stress direction on the extruded surface inside CePO4 were observed. The ductility and machinabililty of CePO4 ceramic are attributed to the layered structure. Continuous machining debris was observed on the turned surface.

  2. Polonium 210Po in the phytobenthos from Puck Bay.

    Science.gov (United States)

    Skwarzec, B; Ulatowski, J; Strumińska, D I; Falandysz, J

    2003-04-01

    The aim of the work was to determine the 210Po content in phytobenthos species (seaweeds and angiosperms) from Puck Bay (southern Baltic). Alpha spectrometry was used to measure and calculate the activities and concentrations of polonium 210Po in the phytobenthos. The activity of 210Po in Puck Bay waters was determined to estimate the bioconcentration factors (BCF) of these plants. The 210Po concentration in water was estimated at 0.25 mBq dm(-3). The lowest polonium concentration in the phytobenthos was found in Cladophora rupestris (0.12 Bq kg(-1) wet wt.), the highest in Chara crinita (1.12 Bq kg(-1) wet wt.). Polonium is accumulated in these phytobenthos species; the bioconcentration factors (BCF) ranged from 450 to 4400.

  3. Properties of Light Hg, Pb and Po Isotopes

    CERN Document Server

    Muntian, I

    2003-01-01

    Quality of mass description for three different theoretical mass models is studied. Masses and deformations for Po, Pb and Hg isotopes are compared with experimental data. Gap in the proton single particle energy spectrum is discussed.

  4. Environmental Management Waste Management Facility Waste Lot Profile for the K-770 Scrap Yard Soils and Miscellaneous Debris, East Tennessee Technology Park, Oak Ridge, Tennessee - EMWMF Waste Lot 4.12

    Energy Technology Data Exchange (ETDEWEB)

    Davenport M.

    2009-04-15

    Waste Lot 4.12 consists of approximately 17,500 yd{sup 3} of low-level, radioactively contaminated soil, concrete, and incidental metal and debris generated from remedial actions at the K-770 Scrap Metal Yard and Contaminated Debris Site (the K-770 Scrap Yard) at the East Tennessee Technology Park (ETTP). The excavated soil will be transported by dump truck to the Environmental Management Waste Management Facility (EMWMF). This profile provides project-specific information to demonstrate compliance with Attainment Plan for Risk/Toxicity-based Waste Acceptance Criteria at the Oak Ridge Reservation, Oak Ridge, Tennessee (DOE 2001). The K-770 Scrap Yard is an approximately 36-acre storage area located southwest of the main portion of ETTP, outside the security perimeter fence in the Powerhouse Area adjacent to the Clinch River. The K-770 area was used to store radioactively contaminated or suspected contaminated materials during and previous to the K-25 Site cascade upgrading program. The waste storage facility began operation in the 1960s and is estimated to at one time contain in excess of 40,000 tons of low-level, radioactively contaminated scrap metal. Scrap metal was taken to the site when it was found to contain alpha or beta/gamma activity on the surface or if the scrap metal originated from a process building. The segregated metal debris was removed from the site as part of the K-770 Scrap Removal Action (RA) Project that was completed in fiscal year (FY) 2007 by Bechtel Jacobs Company LLC (BJC). An area of approximately 10 acres is located in EUs 29 and 31 where the scrap was originally located in the 100-year floodplain. In the process of moving the materials around and establishing segregated waste piles above the 100-year floodplain, the footprint of the site was expanded by 10-15 acres in EUs 30 and 32. The area in EUs 29 and 31 that was cleared of metallic debris in the floodplain was sown with grass. The areas in EUs 30 and 32 have some scattered

  5. Emission Facilities - Erosion & Sediment Control Facilities

    Data.gov (United States)

    NSGIC Education | GIS Inventory — An Erosion and Sediment Control Facility is a DEP primary facility type related to the Water Pollution Control program. The following sub-facility types related to...

  6. Radionuclides ((210)Po and (210)Pb) and Some Heavy Metals in Fish and Sediments in Lake Bafa, Turkey, and the Contribution of (210)Po to the Radiation Dose.

    Science.gov (United States)

    Manav, Ramazan; Uğur Görgün, Aysun; Filizok, Işık

    2016-11-09

    The pollution level of Lake Bafa was investigated by collecting fish samples {Dicentrarchus labrax (sea bass), Liza ramada (mullet) and Anguilla anguilla (eel)}, surface sediment, and core samples. In all these samples, (210)Po and (210)Pb concentrations were estimated, and total annual dose rates were obtained for each species. Some heavy metal (Cr, Ni, Pb, Cd, Mn, Fe, and Zn) concentration levels were obtained for the fish and a core sample. The sediment mass accumulation rate was found to be 3.27 g·m(-2)·day(-1) (0.119 g·cm(-2)·y(-1)) from a core sample. The heavy metal concentrations in the vertical profile of samples from the core were also observed. The measured concentration of Zn, Pb, Cd, and Cr were between the ERL (effects range low) and ERM (effects range median) limits, while Ni concentrations were higher than the ERM limit. The observed concentrations of Cd, Pb, and Zn in fish samples did not exceed the limits in accordance with Turkish Food Regulations. Further, the maximum effective dose equivalent of (210)Po in the area was found to be 1.169 µSv·y(-1).

  7. Radionuclides (210Po and 210Pb) and Some Heavy Metals in Fish and Sediments in Lake Bafa, Turkey, and the Contribution of 210Po to the Radiation Dose

    Science.gov (United States)

    Manav, Ramazan; Uğur Görgün, Aysun; Filizok, Işık

    2016-01-01

    The pollution level of Lake Bafa was investigated by collecting fish samples {Dicentrarchus labrax (sea bass), Liza ramada (mullet) and Anguilla anguilla (eel)}, surface sediment, and core samples. In all these samples, 210Po and 210Pb concentrations were estimated, and total annual dose rates were obtained for each species. Some heavy metal (Cr, Ni, Pb, Cd, Mn, Fe, and Zn) concentration levels were obtained for the fish and a core sample. The sediment mass accumulation rate was found to be 3.27 g·m−2·day−1 (0.119 g·cm−2·y−1) from a core sample. The heavy metal concentrations in the vertical profile of samples from the core were also observed. The measured concentration of Zn, Pb, Cd, and Cr were between the ERL (effects range low) and ERM (effects range median) limits, while Ni concentrations were higher than the ERM limit. The observed concentrations of Cd, Pb, and Zn in fish samples did not exceed the limits in accordance with Turkish Food Regulations. Further, the maximum effective dose equivalent of 210Po in the area was found to be 1.169 µSv·y−1. PMID:27834886

  8. Radionuclides (210Po and 210Pb and Some Heavy Metals in Fish and Sediments in Lake Bafa, Turkey, and the Contribution of 210Po to the Radiation Dose

    Directory of Open Access Journals (Sweden)

    Ramazan Manav

    2016-11-01

    Full Text Available The pollution level of Lake Bafa was investigated by collecting fish samples {Dicentrarchus labrax (sea bass, Liza ramada (mullet and Anguilla anguilla (eel}, surface sediment, and core samples. In all these samples, 210Po and 210Pb concentrations were estimated, and total annual dose rates were obtained for each species. Some heavy metal (Cr, Ni, Pb, Cd, Mn, Fe, and Zn concentration levels were obtained for the fish and a core sample. The sediment mass accumulation rate was found to be 3.27 g·m−2·day−1 (0.119 g·cm−2·y−1 from a core sample. The heavy metal concentrations in the vertical profile of samples from the core were also observed. The measured concentration of Zn, Pb, Cd, and Cr were between the ERL (effects range low and ERM (effects range median limits, while Ni concentrations were higher than the ERM limit. The observed concentrations of Cd, Pb, and Zn in fish samples did not exceed the limits in accordance with Turkish Food Regulations. Further, the maximum effective dose equivalent of 210Po in the area was found to be 1.169 µSv·y−1.

  9. Investigation of the physical-mechanical properties of Eudragit(®) RS PO/RL PO and their mixtures with common pharmaceutical excipients.

    Science.gov (United States)

    Dave, Vivek S; Fahmy, Raafat M; Hoag, Stephen W

    2013-07-01

    Ammonio methacrylate copolymers Eudragit(®) RS PO and Eudragit® RL PO have found widespread use as key components in various types of extended release solid dosage forms. The deformation behavior of neat polymers and binary mixes was evaluated using Heckel Analysis, strain rate sensitivity, work of compaction and elastic recovery index. Additionally, the compact forming ability of neat materials and binary mixes were evaluated by analyzing their tabletability, compressibility and compactibility profiles. The Heckel analysis of both polymers exhibited a speed-sensitive deformation behavior typical to plastic materials. The yield values of the binary mixes of the polymers with microcrystalline cellulose revealed a linear relationship with the weight fractions of individual components. The yield values of binary mixes of both the polymers with dibasic calcium phosphate exhibited slight negative deviations from linearity. Both polymers exhibited axial relaxation after ejection typical of viscoelastic materials, as measured by the elastic recovery index values. The work of compaction and the elastic recovery index values of the binary mixtures were found to be linearly related to the weight fractions of the individual components thus, confirming ideal mixing behavior based on the composition. Addition of microcrystalline cellulose to both polymers significantly improved their tabletability and compactibility. The tensile strengths of the compacts prepared with neat materials and binary mixes with microcrystalline cellulose, dibasic calcium phosphate and lactose were the function of their solid fraction and independent of the tableting speeds tested; thus, validating compactibility as a reliable parameter in predicting acceptable tablet properties.

  10. The PoGOLite control system and software

    CERN Document Server

    Jackson, M S

    2013-01-01

    The autonomous control system of PoGOLite is presented. PoGOLite is a balloon borne X-ray polarimeter designed to observe point sources. To obtain scientific data with optimal efficiency, independent of the ground connection, the payload control system has been made autonomous in most functions. The overall system architecture and the interconnections between components, as well as the automation philosophy and software, are described. Results of performance tests are given.

  11. Improving rate performance of LiFePO{sub 4} cathode materials by hybrid coating of nano-Li{sub 3}PO{sub 4} and carbon

    Energy Technology Data Exchange (ETDEWEB)

    Zhao, Shi-Xi, E-mail: zhaosx@sz.tsinghua.edu.cn [Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055 (China); Ding, Hao; Wang, Yan-Chao [Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055 (China); School of Materials Science and Engineering, Tsinghua University, Beijing 100084 (China); Li, Bao-Hua [Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055 (China); Nan, Ce-Wen [School of Materials Science and Engineering, Tsinghua University, Beijing 100084 (China)

    2013-07-25

    Highlights: •This paper reports an improved solid-state method which leads to a uniform coating. The influence of Li{sub 3}PO{sub 4} and carbon coating on the electrochemical performance of LiFePO{sub 4} was studied. •LiFePO{sub 4} coating with Li{sub 3}PO{sub 4} and carbon shows a higher capacity than pure carbon coating sample. •Results indicate that the surface structure has an important influence on the electrochemical performance of LiFePO{sub 4}. The addition of Li{sub 3}PO{sub 4} can decrease the interfacial resistance of Li FePO{sub 4}. -- Abstract: Li{sub 3}PO{sub 4} coating on the surface of LiFePO{sub 4} particles was prepared by direct dispersing LiFePO{sub 4} precursor in starch slurry with nano-Li{sub 3}PO{sub 4}. The existence of nano-Li{sub 3}PO{sub 4} was confirmed with X-ray powder diffraction (XRD). And the particle size and morphology were observed by scanning electron microscope (SEM) and transmission electron microscope analysis (TEM). The effects of the mixture coating on rate performance of LiFePO{sub 4} cathode vs Li anode at 25 °C was investigated. Li{sub 3}PO{sub 4} and carbon mixing coated LiFePO{sub 4} cathode materials exhibited markedly improved rate capability relative to bare carbon-coated LiFePO{sub 4}. Analyses on cell impedance showed that the Li{sub 3}PO{sub 4} coating decreased the interfacial impedance. Transmission electron microscope analysis, electrochemical impedance spectroscopy (EIS) and cyclic voltammograms (CV) were carried out to explain the reason of better rate performance by Li{sub 3}PO{sub 4} coating.

  12. Investigation of sodium insertion–extraction in olivine Na x FePO 4 (0 ≤ x ≤ 1) using first-principles calculations

    Energy Technology Data Exchange (ETDEWEB)

    Saracibar, A.; Carrasco, J.; Saurel, D.; Galceran, M.; Acebedo, B.; Anne, H.; Lepoitevin, M.; Rojo, T.; Cabanas, M. Casas (CIC energiGUNE); (Basque)

    2016-09-23

    Olivine NaFePO4 has recently attracted the attention of the scientific community as a promising cathode material for Na-ion batteries. In this work we combine density functional theory (DFT) calculations and high resolution synchrotron X-ray diffraction (HRXRD) experiments to study the phase stability of NaxFePO4 along the whole range of sodium compositions (0 ≤ x ≤ 1). DFT calculations reveal the existence of two intermediate structures governing the phase stability at x = 2/3 and x = 5/6. This is in contrast to isostructural LiFePO4, which is a broadly used cathode in Li-ion batteries. Na2/3FePO4 and Na5/6FePO4 ground states both align vacancies diagonally within the ab plane, coupled to a Fe2+/Fe3+ alignment. HRXRD data for NaxFePO4 (2/3 < x < 1) materials show common superstructure reflections up to x = 5/6 within the studied compositions. The computed intercalation voltage profile shows a voltage difference of 0.16 V between NaFePO4 and Na2/3FePO4 in agreement with the voltage discontinuity observed experimentally during electrochemical insertion.

  13. Principles of failure probability assessment (PoF)

    Energy Technology Data Exchange (ETDEWEB)

    Giribone, R. [Bureau Veritas, Energy and Process Business Line, 17 bis Place des Reflets, Courbevoie 92400 (France); Valette, B. [Bureau Veritas, Energy and Process Business Line, 17 bis Place des Reflets, Courbevoie 92400 (France)]. E-mail: bernard.valette@bureauveritas.com

    2004-11-01

    This abstract presents a method for computing Probability of Failure (PoF) namely the method integrating the so-called 'Bayesian approach'. PoF along with the assessment of the consequences of failure are required when it comes to assessing 'risks'. More and more frequently, in modern industries, the trend is to rely on the use of risk-based approaches for the scheduling of the inspection of static pressure vessels. Equipment PoF is the main driver for scheduling periodical inspections. Within the Bayesian approach, it is expected that the performance of inspection, provided effective techniques are used, increases the knowledge we have on the equipment condition and help us gain confidence in the planning of future inspections. The paper thus describes the theoretical principles yielding to the calculation of the PoF prior to conduct an inspection and after its performance. PoF calculation within a Risk-Based Inspection (RBI) planning is one of the aspects covered by the EU project called 'RIMAP' (Risk-Based Inspection and Maintenance Procedure). PoF calculation using Bayes theorem is the cornerstone of the RBI methodology described in American Petroleum Institute reference 'API 581'.

  14. Investigation on Ductile Property of CePO4 Ceramic

    Institute of Scientific and Technical Information of China (English)

    王丽娟; 刘家臣; 王凯利; 霍伟荣; 高海

    2003-01-01

    Average grain size of chemicalty synthesized CePO4 powder increases with incre asing calcining temperature. The strength 184 Mpa and toughness 4.8 Mpa*m1/ 2 were achieved when the green compacts were sintered at 1500 ℃ for 2 h in air . They show that stepped or multilayered fracture occurs within CePO4 granules. CePO4 ceramic could be cut, drilled or turned easily using conventional metal-machining tools. Continuous machining debris was observed on turned surface. Indentation pressure stress-strain curve showes extensive nonlinear behavior, and a series of microcracks which crack cross and occur along the extrusion stre ss direction were observed on extruded surface, indicating single-phase CePO4 ceramic is "ductile". Based on the fracture analyses in cross-section surface, the ductility of CePO4 ceramic is considered to be associated with the cleavage of multilayered CePO4 grains and the fragment resetting to adapt to stress.

  15. Assessment of ²¹⁰Po in Italian diet.

    Science.gov (United States)

    Meli, Maria Assunta; Desideri, Donatella; Roselli, Carla; Feduzi, Laura

    2014-07-15

    This research was dedicated to the study, in the Italian daily diet, of the background activity concentration of (210)Po, a radionuclide with a high radiotoxicity. (210)Po was determined by alpha spectrometry. For food products of vegetable origin, the (210)Po activity concentration follows the trend: leafy vegetable>flour>rice>fruits>pasta>other vegetables>fruit vegetable; for those of animal origin: eggs>cheese>milk. The (210)Po activity concentration was also compared with that found by the same authors in meat, sea food, water and beverages in a previous study. The committed effective doses to individuals of three population groups (infants, children and adults) were 379, 222 and 151 μSv y(-1), respectively. The intake of foods of marine origin contributed about 67% of the total dose due to (210)Po ingestion. The effective dose, from (210)Po ingested by total diet, accounts for only 5-12% of the natural radiation exposure in Italy. Copyright © 2014 Elsevier Ltd. All rights reserved.

  16. Relational Aggression in Children with Preschool Onset (PO) Psychiatric Disorders

    Science.gov (United States)

    Belden, Andy C.; Gaffrey, Michael S.; Luby, Joan L.

    2012-01-01

    Objective The role of preschool onset (PO) psychiatric disorders as correlates and/or risk factors for relational aggression during kindergarten or 1st grade was tested in a sample of N = 146 preschool-age children (3 to 5.11). Method Axis-I diagnoses and symptom scores were derived using the Preschool Age Psychiatric Assessment. Children’s roles in relational aggression as aggressor, victim, aggressive-victim, or non-aggressor/non-victim were determined at preschool and again 24 months later at elementary school entry. Results Preschoolers diagnosed with PO-psychiatric disorders were 3 times as likely as the healthy preschoolers to be classified aggressors, victims, or aggressive-victims. Children diagnosed with PO-disruptive, depressive, and/or anxiety disorders were at least 6 times as likely as children without PO-psychiatric disorders to become aggressive-victims during elementary school after covarying for other key risk factors. Conclusions Findings suggested that PO-psychiatric disorders differentiated preschool and school-age children’s roles in relational aggression based on teacher-report. Recommendations for future research and preventative intervention aimed at minimizing the development of relational aggression in early childhood by identifying and targeting PO-psychiatric disorders are made. PMID:22917202

  17. Rozpoznawanie depresji u pacjentów z chorobą Parkinsona za pomocą różnorodnych narzędzi diagnostycznych

    Directory of Open Access Journals (Sweden)

    Krzysztof Pękala

    2015-12-01

    spełnia oczekiwań w rozpoznawaniu depresji na odpowiednim poziomie w grupie osób z chorobą Parkinsona. Podobne wnioski należy wyciągnąć odnośnie do Unified Parkinson’s Disease Rating Scale – Part I oraz Center for Epidemiologic Studies Depression Rating Scale. Do celów przesiewowych dobrze nadają się zaś Geriatric Depression Scale, Hospital Anxiety and Depression Scale, Patient Health Questionnaire i Zung Self-Rating Depression Scale. Cornell Scale for the Assessment of Depression in Dementia może być obiecującym narzędziem do celów przesiewowych po przejściu większej liczby testów.

  18. Air Quality Facilities

    Data.gov (United States)

    Iowa State University GIS Support and Research FacilityFacilities with operating permits for Title V of the Federal Clean Air Act, as well as facilities required to submit an air emissions inventory, and other facilities...

  19. Theme: Laboratory Facilities Improvement.

    Science.gov (United States)

    Miller, Glen M.; And Others

    1993-01-01

    Includes "Laboratory Facilities Improvement" (Miller); "Remodeling Laboratories for Agriscience Instruction" (Newman, Johnson); "Planning for Change" (Mulcahy); "Laboratory Facilities Improvement for Technology Transfer" (Harper); "Facilities for Agriscience Instruction" (Agnew et al.); "Laboratory Facility Improvement" (Boren, Dwyer); and…

  20. Usporedna analiza sustava za 3D digitalizaciju u području stomatološke protetike

    OpenAIRE

    Budak, Igor; Trifkovic, Branka; Puskar, Tatjana; Vukelic, Djordje; Vucaj-Cirilovic, Viktorija; Hodolic, Janko; Todorovic, Aleksandar

    2013-01-01

    Među modernim inženjerskim tehnologijama koje su pronašle široku primjenu u području stomatologije, jedna od najčešće korištenih je 3D digitalizacija. Ovaj se rad bavi primjenom sustava za 3D digitalizaciju u području stomatološke protetike i pokušava doprinijeti u tom području kroz usporednu analizu ove vrste sustava. Posebna pažnja je usmjerena na ekstra-oralne sustave 3D digitalizacije i među njima na ne-specijalizirane stomatološke sustave 3D digitalizacije. Osim općeg pregleda i analize ...

  1. Evaluacija tranzicijskog vrtićkog programa za djecu s poremećajem iz spektra autizma

    OpenAIRE

    Vrljičak, Sanda; Frey Škrinjar , Jasmina; Stošić, Jasmina

    2016-01-01

    Zbog obilježja samog poremećaja, inkluzija djece s poremećajem iz spektra autizma (PSA) vrlo je složen i zahtjevan proces. Pružanjem znanstveno utemeljene stručne podrške u ranoj dobi potrebno je omogućiti razvoj vještina kojima će se osigurati pozitivni učinci uključivanja u vršnjačke skupine. U ovom radu prikazani su rezultati provođenja individualiziranih edukacijsko-rehabilitacijskih programa za 5 dječaka sa PSA-om predškolske dobi. Program se provodio u okviru posebne, tranzicijske skupi...

  2. Mechanical properties of As-cast and heat-treated ZA-27 alloy/short glass fiber composites

    Science.gov (United States)

    Sharma, S. C.; Girish, B. M.; Satish, B. M.; Kamath, R.

    1998-02-01

    This paper reports on the mechanical properties of as-cast and heat-treated ZA-27 alloy composites reinforced with glass fibers from 1 to 5 wt%. The composites were fabricated using the Compocasting method, in which short glass fibers were introduced into the vortex created in the molten alloy through an impeller rotated at 500 rpm. The molten mass was thoroughly stirred and poured into permanent molds and squeezed under pressure. The specimens were heat treated at 320 °C for 1, 2,3, and 4 h. The tests on the as-cast composites revealed that as the glass content in the composites was increased, the ultimate tensile strength (UTS), compressive strength, and hardness of the composite increased, while the ductility and impact strength were decreased. Heat treatment was found to improve significantly the ductility, compressive strength, and impact strength, while the hardness and UTS were reduced. This paper discusses the behavior of these composites.

  3. Du collectif, malgré tout dans le cinéma de Rabah Ameur-Zaïmeche

    Directory of Open Access Journals (Sweden)

    Marion Froger

    2013-11-01

    Full Text Available Dans ses deux premiers films, Rabah Ameur-Zaïmeche interprète un personnage qui, ayant écopé de la « double peine », finit par perdre sa place dans un aller et retour sans issue, entre son village algérien d’origine qui le rejette (Bled number One et la France qui l’expulse puis le traque à son retour (Wesh wesh qu’est-ce qui se passe ?. À ce destin qui s’avère borné par la folie, d’un côté de la Méditerranée, ou par la mort de l’autre, le cinéaste oppose la créativité de ses propres collectifs de production, dont il laisse volontairement des traces dans chacun de ses films. Il entend ainsi, malgré tout, réinvestir, par le désir de groupe, le champ du politique, et par l’invention de formes cinématographiques, ne pas exclure le spectateur d’un sentiment de solidarité et de fraternité désancré de ses bases strictement communautaires. Adossé à la réalité vécue par une génération issue de l’immigration algérienne, née ou ayant grandi en France après l’indépendance de l’Algérie, le cinéma de Rabah Ameur-Zaimèche évoque les ambivalences de l’expérience groupale de ceux qui vont et viennent avec constance et intensité d’une rive à l’autre de leurs désirs d’appartenance et d’engagement.  In his two first movies, Rabah Ameur-Zaïmeche plays a character who, subject to legal “double jeopardy”, finds himself lost in an inescapable back and forth between his native Algerian village, which rejects him, (Bled number One and France, which expels him and then, upon his return, hunts him down (Wesh wesh qu’est-ce qui se passe ?. Against this fate, which ends in madness on one side of the Mediterranean or death on the other, Rabah Ameur-Zaïmeche sets the creativity of his production teams, traces of whose work remains in each of his films. Despite everything, the filmmaker looks to reinvest the political field with collective desire, and, through the use of inventive cinematic

  4. Microstructures and mechanical properties of ZA27-Al2O3 composites obtained by powder metallurgy process

    Directory of Open Access Journals (Sweden)

    Božić D.

    2011-01-01

    Full Text Available This paper describes a study of the microstructures and mechanical properties of Zn matrix composites reinforced by 10 wt.% Al2O3 particles of 0.7 μm average size. Commercial Zn-Al-Cu (ZA27 alloy was gas atomized and the resulting powder was mixed with an Al2O3 powder, and then hot pressed into cylindrical pellets. Metal powder and powder mixtures were pressed at 230°C, for 45 min under the pressure of 150 MPa. The compressive strength testing was performed in the temperature range from 20°C to 160°C, with a deformation rate of 2.4×10-3s-1. The microstructures and the fracture surface of the samples were investigated by optical and scanning electron microscopy.

  5. Literatura białoruska w Polsce po roku 1989. O potrzebie tworzenia bazy literackiej

    Directory of Open Access Journals (Sweden)

    Grażyna Charytoniuk-Michiej

    2014-12-01

    bibliographic database of the Belarusian literature in Poland.   Literatura białoruska w Polsce po roku 1989. O potrzebie tworzenia bazy literackiej Kiedy się mówi o literaturze białoruskiej w Polsce, trzeba mieć na uwadze literaturę piękną, jej przekłady na język polski i literaturę przedmiotu. O obecności literatury białoruskiej w Polsce powojennej świadczą bibliografie: przekładów obejmująca lata 1945-1994 (G. Charytoniuk, Literatura białoruska w Polsce. Bibliografia przekładów za lata 1945-1994, Białystok 1996 i przedmiotowa lat 1945-1998 (G. Charytoniuk, Polskie białorutenika literackie. Bibliografia przedmiotowa 1945-1998, Białystok 1998. Nowe warunki polityczne, społeczne i ekonomiczne w Polsce po 1989 roku wpłynęły i na sytuację literatury białoruskiej. Pojawiły się nowe  uniwersyteckie katedry i zakłady naukowe. Realizują one projekty badawcze uwzględniające literaturę białoruską w Polsce i na Białorusi. Powstały liczne organizacje pozarządowe (fundacje, towarzystwa i stowarzyszenia nie tylko na Białostocczyźnie, ale i w innych miejscach w kraju. Utworzył się nowy rynek wydawniczy, który zwrócił uwagę  i na współczesną literaturę krajów Europy Środkowej i Wschodniej, w tym białoruską. Ważną rolę w popularyzacji literatury białoruskiej pełni Internet. Literatura ta jest rejestrowana przez bibliografię narodową (Przewodnik Bibliograficzny, Bibliografia Zawartości Czasopism i regionalną (Bibliografię Województwa Podlaskiego. Wyszukiwanie informacji ułatwiają instytucjonalne repozytoria naukowe i biblioteki cyfrowe. Znaczna część dokumentów pozostaje jednak poza rejestracją bibliograficzną. Pojawia się więc potrzeba stworzenia bazy literackiej dotyczącej literatury białoruskiej w Polsce, która dążyłaby do kompletności bibliograficznej.

  6. PoV-GAME: PUNTOS DE VISTA MEDIANTE JUEGOS PoV-GAME: VIEWPOINTS THROUGH GAMES

    Directory of Open Access Journals (Sweden)

    Carlos Zapata-Jaramillo

    2012-06-01

    Full Text Available El desarrollo de proyectos de software considera importante la consistencia entre la información entregada por todos los interesados de una aplicación. En otras palabras, se procura llegar a acuerdos entre los diferentes puntos de vista de cada actor y llevarlos a cabo durante todo el proyecto. Con los métodos de enseñanza tradicionales se procura formar habilidades en este campo, pero no se afianzan mediante la práctica que, generalmente, se emplea para el aprendizaje en este campo. Por ello, en este artículo se propone ''PoV-GAME'', una nueva forma de ''jugar aprendiendo'', la cual busca fortalecer algunos conceptos básicos en la ingeniería de software como la consistencia en la información que se maneja a lo largo de un proyecto y afianzar la importancia de los puntos de vista en el desarrollo de un producto de software. Posteriormente, se analizan los resultados obtenidos luego de realizar el juego en diferentes grupos de estudiantes.Information for software applications is delivered by the stakeholders. Software development projects need consistency as an important aspect of such information. In other words, agreement among the different viewpoints must be reached in order to be implemented in the project. Well-known teaching methods try to create capabilities in this field, but they fail in reinforcing them in practice, which is commonly used for teaching in this field. Therefore, in this paper we propose ''PoV GAME'' a new way of ''play-to-learn''. We aim the reinforcement of some basic concepts about software engineering such as consistency in the information handled throughout the project, and the importance of viewpoints in the software product development. Subsequently, we analyze the results obtained after holding the game in several groups of students.

  7. Scatterometry Products Distributed by JPL PO.DAAC

    Science.gov (United States)

    Chen, R. L.; Lungu, T.; Benada, J. R.

    2001-12-01

    The Physical Oceanography Distributed Active Archive Center (PO.DAAC) at the Jet Propulsion Laboratory (JPL) archives and distributes physical oceanography data, including data from spacebased scatterometers. PO.DAAC's current archive contains more than six terabytes of scatterometry data, and PO.DAAC has distributed over 40 terabytes of that data to users worldwide. Those numbers increase steadily with the continuation of the QuikSCAT satellite, and that increase should effectively double with the pending launch of SeaWinds on ADEOS-II. The SeaWinds on QuikSCAT instrument provides the largest component of PO.DAAC's scatterometry data. Every day, the instrument makes 400,000 measurements and covers 90% of the ice-free oceans for wind data, with additional useful information over land and ice. PO.DAAC publicly distributes two QuikSCAT products: - Level 3 Daily, Gridded Ocean Wind Vectors (JPL SeaWinds Project) - Level 2B Ocean Wind Vectors in 25 Km Swath Grid (JPL SeaWinds Project) Scheduled to launch in February 2002, the SeaWinds on ADEOS-II instrument will provide a similar amount of data as QuikSCAT. PO.DAAC will again publicly distribute the level 2B and the level 3 products. Other scatterometry data currently available from PO.DAAC include: - BYU Daily Browse Images of QuikSCAT Sigma-0 Measurements (D. Long) - NSCAT Scatterometer ocean wind products - NSCAT Scatterometer Science Product, Levels 1.7, 2, 3 - NSCAT scatterometer global 25km sigma-0 and ocean winds (Dunbar) Samples of some of these datasets are presented.

  8. RAPID DETERMINATION OF {sup 210} PO IN WATER SAMPLES

    Energy Technology Data Exchange (ETDEWEB)

    Maxwell, S.

    2013-05-22

    A new rapid method for the determination of {sup 210}Po in water samples has been developed at the Savannah River National Laboratory (SRNL) that can be used for emergency response or routine water analyses. If a radiological dispersive device (RDD) event or a radiological attack associated with drinking water supplies occurs, there will be an urgent need for rapid analyses of water samples, including drinking water, ground water and other water effluents. Current analytical methods for the assay of {sup 210}Po in water samples have typically involved spontaneous auto-deposition of {sup 210}Po onto silver or other metal disks followed by counting by alpha spectrometry. The auto-deposition times range from 90 minutes to 24 hours or more, at times with yields that may be less than desirable. If sample interferences are present, decreased yields and degraded alpha spectrums can occur due to unpredictable thickening in the deposited layer. Separation methods have focused on the use of Sr Resin, often in combination with 210Pb analysis. A new rapid method for {sup 210}Po in water samples has been developed at the Savannah River National Laboratory (SRNL) that utilizes a rapid calcium phosphate co-precipitation method, separation using DGA Resin (N,N,N,N-tetraoctyldiglycolamide extractant-coated resin, Eichrom Technologies or Triskem-International), followed by rapid microprecipitation of {sup 210}Po using bismuth phosphate for counting by alpha spectrometry. This new method can be performed quickly with excellent removal of interferences, high chemical yields and very good alpha peak resolution, eliminating any potential problems with the alpha source preparation for emergency or routine samples. A rapid sequential separation method to separate {sup 210} Po and actinide isotopes was also developed. This new approach, rapid separation with DGA Resin plus microprecipitation for alpha source preparation, is a significant advance in radiochemistry for the rapid

  9. Správa vozidel za pomoci mobilního telefonu s GPS

    OpenAIRE

    Pompe, Patrik

    2012-01-01

    Tato práce se zabývá získáváním informací z chytrého mobilního telefonu pro využití v aplikaci typu kniha jízd. Nejprve specifikuje a analyzuje požadavky na takovou aplikaci, poté sezabývá možnostmi její realizace. Popisuje implementaci zvoleného řešení, které se skládá ze tří částí - aplikace pro telefon na platformě Android, která sbírá potřebné informace o trasách vozidel, webového portálu, který poskytuje rozhraní pro zobrazení a správu získaných dat a webových služeb pro zajištění komuni...

  10. Comparison of electrochemical performances of olivine NaFePO4 in sodium-ion batteries and olivine LiFePO4 in lithium-ion batteries

    Science.gov (United States)

    Zhu, Yujie; Xu, Yunhua; Liu, Yihang; Luo, Chao; Wang, Chunsheng

    2012-12-01

    Carbon-coated olivine NaFePO4 (C-NaFePO4) spherical particles with a uniform diameter of ~80 nm are obtained by chemical delithiation and subsequent electrochemical sodiation of carbon-coated olivine LiFePO4 (C-LiFePO4), which is synthesized by a solvothermal method. The C-NaFePO4 electrodes are identical (particle size, particle size distribution, surface coating, and active material loading, etc.) to C-LiFePO4 except that Li ions in C-LiFePO4 are replaced by Na ions, making them ideal for comparison of thermodynamics and kinetics between C-NaFePO4 cathode in sodium-ion (Na-ion) batteries and C-LiFePO4 in lithium-ion (Li-ion) batteries. In this paper, the equilibrium potentials, reaction resistances, and diffusion coefficient of Na in C-NaFePO4 are systematically investigated by using the galvanostatic intermittent titration technique (GITT), electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV), and compared to those of the well-known LiFePO4 cathodes in Li-ion batteries. Due to the lower diffusion coefficient of Na-ion and higher contact and charge transfer resistances in NaFePO4 cathodes, the rate performance of C-NaFePO4 in Na-ion batteries is much worse than that of C-LiFePO4 in Li-ion batteries. However, the cycling stability of C-NaFePO4 is almost comparable to C-LiFePO4 by retaining 90% of its capacity even after 100 charge-discharge cycles at a charge-discharge rate of 0.1 C.Carbon-coated olivine NaFePO4 (C-NaFePO4) spherical particles with a uniform diameter of ~80 nm are obtained by chemical delithiation and subsequent electrochemical sodiation of carbon-coated olivine LiFePO4 (C-LiFePO4), which is synthesized by a solvothermal method. The C-NaFePO4 electrodes are identical (particle size, particle size distribution, surface coating, and active material loading, etc.) to C-LiFePO4 except that Li ions in C-LiFePO4 are replaced by Na ions, making them ideal for comparison of thermodynamics and kinetics between C-NaFePO4 cathode in

  11. LiFePO4 nanoparticles enveloped in freestanding sandwich-like graphitized carbon sheets as enhanced remarkable lithium-ion battery cathode

    Science.gov (United States)

    Zhang, Yan; Zhang, Huijuan; Li, Xiao; Xu, Haitao; Wang, Yu

    2016-04-01

    A novel nanostructure where LiFePO4 nanoparticles are enveloped in sandwich-like carbon sheets as an enhanced cathode in lithium-ion batteries has successfully been synthesized for the first time. Compared to previous carbon-based nanocomposites, the achieved sandwich-like LiFePO4 nanocomposites exhibit totally different architecture, in which LiFePO4 nanoparticles are tightly entrapped between two carbon layers, instead of being anchored on the carbon sheet surfaces. In other words, the achieved sandwich-like LiFePO4 nanocomposite carbon layers are actually freestanding and can be operated and separated from each other. This is a great breakthrough in the design and synthesis of carbon-based functional materials. The obtained sandwich-like LiFePO4 nanocomposites present excellent electrochemical performance, which is rationally ascribed to the superb and unique structure and architecture. Of particular note is that the freestanding sandwich-like LiFePO4 nanocomposites exhibit enhanced cyclability and rate capability. At a high current density of 0.1 A g-1, a stable specific capacity of approximately 168.5 mAh g-1 can be delivered over 1000 cycles, and when the charge-discharge rates increase to 0.6, 2, 5 and 10 A g-1, the specific capacities still survive at 149, 129, 114 and 91 mAh g-1, respectively. Meanwhile, the sandwiched nanocomposite demonstrates a significantly improved low-temperature electrochemical energy storage performance. With respect to the excellent Li storage performance, and facility and reliability of production, the freestanding sandwich-like LiFePO4 nanocomposites are reasonably believed to have a great potential for multiple electrochemical energy storage applications.

  12. LiFePO4 nanoparticles enveloped in freestanding sandwich-like graphitized carbon sheets as enhanced remarkable lithium-ion battery cathode.

    Science.gov (United States)

    Zhang, Yan; Zhang, Huijuan; Li, Xiao; Xu, Haitao; Wang, Yu

    2016-04-15

    A novel nanostructure where LiFePO4 nanoparticles are enveloped in sandwich-like carbon sheets as an enhanced cathode in lithium-ion batteries has successfully been synthesized for the first time. Compared to previous carbon-based nanocomposites, the achieved sandwich-like LiFePO4 nanocomposites exhibit totally different architecture, in which LiFePO4 nanoparticles are tightly entrapped between two carbon layers, instead of being anchored on the carbon sheet surfaces. In other words, the achieved sandwich-like LiFePO4 nanocomposite carbon layers are actually freestanding and can be operated and separated from each other. This is a great breakthrough in the design and synthesis of carbon-based functional materials. The obtained sandwich-like LiFePO4 nanocomposites present excellent electrochemical performance, which is rationally ascribed to the superb and unique structure and architecture. Of particular note is that the freestanding sandwich-like LiFePO4 nanocomposites exhibit enhanced cyclability and rate capability. At a high current density of 0.1 A g(-1), a stable specific capacity of approximately 168.5 mAh g(-1) can be delivered over 1000 cycles, and when the charge-discharge rates increase to 0.6, 2, 5 and 10 A g(-1), the specific capacities still survive at 149, 129, 114 and 91 mAh g(-1), respectively. Meanwhile, the sandwiched nanocomposite demonstrates a significantly improved low-temperature electrochemical energy storage performance. With respect to the excellent Li storage performance, and facility and reliability of production, the freestanding sandwich-like LiFePO4 nanocomposites are reasonably believed to have a great potential for multiple electrochemical energy storage applications.

  13. Relating the 3D electrode morphology to Li-ion battery performance; a case for LiFePO4

    Science.gov (United States)

    Liu, Zhao; Verhallen, Tomas W.; Singh, Deepak P.; Wang, Hongqian; Wagemaker, Marnix; Barnett, Scott

    2016-08-01

    One of the main goals in lithium ion battery electrode design is to increase the power density. This requires insight in the relation between the complex heterogeneous microstructure existing of active material, conductive additive and electrolyte providing the required electronic and Li-ion transport. FIB-SEM is used to determine the three phase 3D morphology, and Li-ion concentration profiles obtained with Neutron Depth Profiling (NDP) are compared for two cases, conventional LiFePO4 electrodes and better performing carbonate templated LiFePO4 electrodes. This provides detailed understanding of the impact of key parameters such as the tortuosity for electron and Li-ion transport though the electrodes. The created hierarchical pore network of the templated electrodes, containing micron sized pores, appears to be effective only at high rate charge where electrolyte depletion is hindering fast discharge. Surprisingly the carbonate templating method results in a better electronic conductive CB network, enhancing the activity of LiFePO4 near the electrolyte-electrode interface as directly observed with NDP, which in a large part is responsible for the improved rate performance both during charge and discharge. The results demonstrate that standard electrodes have a far from optimal charge transport network and that significantly improved electrode performance should be possible by engineering the microstructure.

  14. Hydrothermal fabrication of multi-functional Eu3+ and Tb3+ co-doped BiPO4: Photocatalytic activity and tunable luminescence properties

    Science.gov (United States)

    Wang, Yao; Huang, Hongwei; Quan, Chaoming; Tian, Na; Zhang, Yihe

    2016-01-01

    We demonstrated for first time the tunable photoluminescence (PL) properties and photocatalytic activity of the Tb3+ and Eu3+ co-doped BiPO4 assemblies. They are fabricated via a facile hydrothermal approach. Through co-doping of Eu3+ and Tb3+ ions and changing the doping ratio, the emission color of the co-doped BiPO4 phosphors can be tuned precisely from green to yellow and red. Meanwhile, a very efficient energy transfer from Tb3+ to Eu3+ can be observed. Fascinatingly, a warmwhite color has been realized in the co-doped sample by tuning the ratio of Tb3+/Eu3+ to a certain value as displayed in the CIE chromaticity diagram. The doped BiPO4 samples also exhibit significantly enhanced photocatalytic activity compared to the pristine BiPO4 pertaining to Rhodamine (RhB) degradation under UV light. This enhancement should be attributed to the trapping electron effect induced by ion doping that endows BiPO4 with high separation of photoinduced electron-hole pairs, thereby greatly promoting the photocatalytic reactivity. It was corroborated by the electrochemical impedance spectra (EIS). Moreover, the crystal structure, microstructure and optical properties of as-prepared samples were investigated in details.

  15. Desired crystal oriented LiFePO4 nanoplatelets in situ anchored on a graphene cross-linked conductive network for fast lithium storage.

    Science.gov (United States)

    Wang, Bo; Liu, Anmin; Abdulla, Wael Al; Wang, Dianlong; Zhao, X S

    2015-05-21

    Electron transfer and lithium ion diffusion rates are the key factors limiting the lithium ion storage in anisotropic LiFePO4 electrodes. In this work, we employed a facile solvothermal method to synthesize a "platelet-on-sheet" LiFePO4/graphene composite (LFP@GNs), which is LiFePO4 nanoplatelets in situ grown on graphene sheets with highly oriented (010) facets of LiFePO4 crystals. Such a two-phase contact mode with graphene sheets cross-linked to form a three-dimensional porous network is favourable for both fast lithium ion and electron transports. As a result, the designed LFP@GNs displayed a high rate capability (∼56 mA h g(-1) at 60 C) and long life cycling stability (∼87% capacity retention over 1000 cycles at 10 C). For comparison purposes, samples ex situ modified with graphene (LFP/GNs) as well as pure LiFePO4 platelets (LFP) were also prepared and investigated. More importantly, the obtained LFP@GNs can be used as a basic unit for constructing more complex structures to further improve electrochemical performance, such as coating the exposed LFP surface with a thin layer of carbon to build a C@LFP@GN composite to further enhance its cycling stability (∼98% capacity retention over 1000 cycles at 10 C).

  16. Preparation, characterization and luminescence properties of BiPO4 :Eu nanophosphors.

    Science.gov (United States)

    Zhou, Xiaochun; Wang, Xiaojun

    2013-01-01

    A facile chemical method was employed to prepare fine BiPO4 :Eu(3+) phosphor particles calcined at the same temperature. Introducing lithium greatly affected the morphology of the samples and further affected the luminescence intensity. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence (PL) spectroscopy. The XRD patterns of BiPO4 :Eu(3+) indicated a monoclinic phase. From the fluorescence spectra, the emission transition (5) D0  → (7) F1 is more prominent than the normal red emission transition (5) D0  → (7) F2 . Based on the intensity ratios of (5) D0  → (7) F2 to (5) D0  → (7) F1 in the emission spectra, it can be concluded that introducing Li(+) can improve the symmetry of the crystal lattice and modify the emission intensity. Sharp lines at 395 nm are the strongest of the f-f transitions and match well with near-UV LED chips.

  17. 一株抗马铃薯坏疽病莫海威芽孢杆菌(Bacillus mojavensis ZA1)培养条件的优化%Optimization of culture conditions of a biocontrol agent Bacillus mojavensis ZA1 to antagonize Phoma foveata

    Institute of Scientific and Technical Information of China (English)

    冯中红; 畅涛; 杨成德; 薛莉; 李旭; 杨小利

    2016-01-01

    为了提高生防菌株莫海威芽孢杆菌(Bacillus mojavensis ZA1)液体发酵的生物量,利用单因素试验设计与响应曲面试验设计相结合的方法对 ZA1摇瓶发酵条件进行了优化。结果表明,ZA1的最佳培养基配比为氯化铵14.25 g、玉米粉19 g、马铃薯237 g、水1000 mL,最佳发酵条件为 pH 7.7、培养温度28℃、转速180 r/min 及发酵时间36 h,ZA1优化后活菌数为4.12×1010 CFU/mL。通过中心组合试验设计确定 ZA1在10 L 发酵罐中的最佳溶氧量为60%和转速为180 r/min;最优条件下,发酵 ZA1的放罐时间确定为36 h,活菌数达到1.59×1011 CFU/mL。该结果为利用 ZA1开发生防制剂奠定了基础。%This work aimed to identify optimum fermentation shaker-flask culture conditions for Bacillus mo-javensis strain ZA1.Various single culture factors were combined according to a Box-Behnken design.The op-timum ratio of ingredients for the culture medium for ZA1was found to be:14.25 g ammonium chloride,19 g corn flour,and 237 g potato,in 1000 mL distilled water.The optimum cultivation conditions were pH 7.7, temperature 28℃,and shaken at 180 r/min for 36 h.Under these conditions,the viable count of B .mojavens-is strain ZA1 was 4.12×10 10 colony-forming units per mL (CFU/mL).Further testing using the central com-posite design method in a 10 L fermentation tank found the optimum for dissolved oxygen level and shaker rota-tion speed to be 60% saturation and 180 r/min respectively.Under these conditions,when fermentation time was 36 h in the fermentation tank,the viable count of B .mojavensis strain ZA1 reached 1.59×10 11 CFU/mL. The results of this study lay a solid foundation for the development of methodology for large scale production of biocontrol agents.

  18. Comparison of electrochemical performances of olivine NaFePO4 in sodium-ion batteries and olivine LiFePO4 in lithium-ion batteries.

    Science.gov (United States)

    Zhu, Yujie; Xu, Yunhua; Liu, Yihang; Luo, Chao; Wang, Chunsheng

    2013-01-21

    Carbon-coated olivine NaFePO(4) (C-NaFePO(4)) spherical particles with a uniform diameter of ∼80 nm are obtained by chemical delithiation and subsequent electrochemical sodiation of carbon-coated olivine LiFePO(4) (C-LiFePO(4)), which is synthesized by a solvothermal method. The C-NaFePO(4) electrodes are identical (particle size, particle size distribution, surface coating, and active material loading, etc.) to C-LiFePO(4) except that Li ions in C-LiFePO(4) are replaced by Na ions, making them ideal for comparison of thermodynamics and kinetics between C-NaFePO(4) cathode in sodium-ion (Na-ion) batteries and C-LiFePO(4) in lithium-ion (Li-ion) batteries. In this paper, the equilibrium potentials, reaction resistances, and diffusion coefficient of Na in C-NaFePO(4) are systematically investigated by using the galvanostatic intermittent titration technique (GITT), electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV), and compared to those of the well-known LiFePO(4) cathodes in Li-ion batteries. Due to the lower diffusion coefficient of Na-ion and higher contact and charge transfer resistances in NaFePO(4) cathodes, the rate performance of C-NaFePO(4) in Na-ion batteries is much worse than that of C-LiFePO(4) in Li-ion batteries. However, the cycling stability of C-NaFePO(4) is almost comparable to C-LiFePO(4) by retaining 90% of its capacity even after 100 charge-discharge cycles at a charge-discharge rate of 0.1 C.

  19. Natural levels of {sup 210}Po in human urine

    Energy Technology Data Exchange (ETDEWEB)

    Diaz-Frances, I.; Manjon, G.; Mantero, J.; Diaz, J. [Departament of Applied Phisic II, University of Seville, P.O. Box 41012 Seville (Spain); Garcia-Tenorio, R. [Departament of Applied Phisic II, University of Seville, P.O. Box 41012 Seville (Spain); National Accelerator Centre, P.O. Box 41092 Seville (Spain)

    2014-07-01

    Since the secret agent Alexander Litvinenko was murdered in 2006 by a {sup 210}Po lethal dose, presumably ingested, there is renovated interest on the toxicity of this radionuclide in humans. {sup 210}Po is a radioactive isotope naturally found in nature, mainly incorporated by humans via food and water ingestion, as well as inhaled through its progenitor, the {sup 222}Rn. The total amount of natural {sup 210}Po in the human body can vary from person to person depending on their lifestyle: dietary habits, drinking water source, place of residence (associated with exposure to {sup 222}Rn), etc- and therefore in the concentrations of this element to be found in urine. To analyze the influence of dietary habits on the amount of {sup 210}Po excreted in urine, two volunteers in Seville had a well-defined and time-varying diet for a month, following a daily collection of their urine and determination of the concentrations therein of this radionuclide. The results obtained and the conclusions derived from them form the core of this communication. {sup 210}Po determinations were performed daily in 200 ml aliquots of urine using the technique of high resolution alpha spectrometry. This has involved the application of a single radiochemical method for the concentration and isolation {sup 210}Po, followed by its auto-deposition on copper planchets for proper measure. Daily {sup 210}Po activity concentrations in voluntary urine analyzed during the month of study show high variability with a difference of up to an order of magnitude between maximum and minimum values obtained, and a clear dependence on the diet type followed in the various stages of the experiment. The lowest concentrations obtained are associated with a diet rich in carbohydrates and proteins 'terrestrial' (pork, beef,...), while the highest concentrations were obtained in the final phase of the experiment when the diet was enriched with presence of marine products in fair correspondence with the

  20. Application of genetic algorithm in the evaluation of the profile error of archimedes helicoid surface

    Science.gov (United States)

    Zhu, Lianqing; Chen, Yunfang; Chen, Qingshan; Meng, Hao

    2011-05-01

    According to minimum zone condition, a method for evaluating the profile error of Archimedes helicoid surface based on Genetic Algorithm (GA) is proposed. The mathematic model of the surface is provided and the unknown parameters in the equation of surface are acquired through least square method. Principle of GA is explained. Then, the profile error of Archimedes Helicoid surface is obtained through GA optimization method. To validate the proposed method, the profile error of an Archimedes helicoid surface, Archimedes Cylindrical worm (ZA worm) surface, is evaluated. The results show that the proposed method is capable of correctly evaluating the profile error of Archimedes helicoid surface and satisfy the evaluation standard of the Minimum Zone Method. It can be applied to deal with the measured data of profile error of complex surface obtained by three coordinate measurement machines (CMM).