bluuebunny/crossref_metadata_2025 huggingface dataset:
Surowiec kaolinowy jako potencjalny materiał do syntezy zeolitu typu A
Authors: Wdowin Magdalena
Published: January 2016

Streszczenie

W pracy przedstawiono możliwość uzyskania materiału zeolitowego typu A z naturalnych surowców ilastych. Materiał wykorzystany do syntezy stanowił wysokiej klasy kaolin pozyskiwany dla celów ceramicznych z piaskowca kaolinowego ze złoża Maria III k. Bolesławca. Surowiec kaolinowy poddano szeregom reakcji celem otrzymania zeolitu typu A. W pierwszym etapie materiał kalcynowano celem uzyskania amorficznego, bardziej reaktywnego produktu (metakaolinu). Następnie metakolin poddano reakcji hydrotermalnej (w temperaturze 100°C), gdzie materiał ten połączono z roztworem wodnym 3 mol·dm−3 wodorotlenu sodu. W wyniku reakcji otrzymano zeolit Na-A, który scharakteryzowano stosując metody mineralogiczne (XRD, SEM-EDS, DTA/TG), chemiczne (XRF) i teksturalne (ASAP). Badania XRD wykazały, że otrzymany produkt stanowi wysokiej czystości zeolit typu A, gdzie udział fazy zeolitowej w otrzymanym materiale wyniósł (95% wt.), resztę stanowił kwarc. Analizy morfologii ziaren (SEM) potwierdziły dobrą krystalizację zeolitu, gdzie materiał ten formuje bardzo dobrze wykształcone kubiczne kryształy. Powierzchnia właściwa (w badaniach teksturalnych) oznaczona w atmosferze azotu wyniosła 4 m2/g. Rozkład wielkości porów wykazał, że zeolit ten ma charakter mikro- i mezoporowaty z dominującym udziałem porów o średnicy 3,5 Å. Celem określenia przydatności badanego materiału zeolitowego do sorpcji ditlenku węgla przeprowadzono wstępne testy, polegające na określeniu powierzchni właściwej w atmosferze CO2, w temperaturach 0 i 25°C. W badaniach tych otrzymano intersujące wyniki, ponieważ powierzchnia właściwa w atmosferze CO2 dla każdej badanej temperatury wyniosła około 400 m2/g. Wynik ten wskazuje na bardzo dobrą selektywność otrzymanego materiału względem CO2, przez co zeolit Na-A powinien być poddany dalszym analizom celem oszacowania jego przydatności pod kątem wychwytywania ditlenku węgla. Otrzymane wyniki syntezy i charakterystyki zeolitu Na-A wskazują na możliwość wykorzystania krajowego surowca kaolinowego do otrzymywania wysokiej jakości zeolitu typu A.
A non-destructive method for estimating onion leaf area
Authors: Córcoles J.I. , Domínguez A. , Moreno M.A. , Ortega J.F. , de Juan J.A.
Published: January 2016

Leaf area is one of the most important parameters for characterizing crop growth and development, and its measurement is useful for examining the effects of agronomic management on crop production. It is related to interception of radiation, photosynthesis, biomass accumulation, transpiration and gas exchange in crop canopies. Several direct and indirect methods have been developed for determining leaf area. The aim of this study is to develop an indirect method, based on the use of a mathematical model, to compute leaf area in an onion crop using non-destructive measurements with the condition that the model must be practical and useful as a Decision Support System tool to improve crop management. A field experiment was conducted in a 4.75 ha commercial onion plot irrigated with a centre pivot system in Aguas Nuevas (Albacete, Spain), during the 2010 irrigation season. To determine onion crop leaf area in the laboratory, the crop was sampled on four occasions between 15 June and 15 September. At each sampling event, eight experimental plots of 1 m2were used and the leaf area for individual leaves was computed using two indirect methods, one based on the use of an automated infrared imaging system, LI-COR-3100C, and the other using a digital scanner EPSON GT-8000, obtaining several images that were processed using Image J v 1.43 software. A total of 1146 leaves were used. Before measuring the leaf area, 25 parameters related to leaf length and width were determined for each leaf. The combined application of principal components analysis and cluster analysis for grouping leaf parameters was used to reduce the number of variables from 25 to 12. The parameter derived from the product of the total leaf length (L) and the leaf diameter at a distance of 25% of the total leaf length (A25) gave the best results for estimating leaf area using a simple linear regression model. The model obtained was useful for computing leaf area using a non-destructive method.
Turoyo Neo-Aramaic in northern New Jersey
Authors: Weaver Christina Michelle , Kiraz George A.
Published: January 2016

Turoyo, an endangered Neo-Aramaic language that originated in the area of Tur Abdin in southeastern Turkey and had not been written prior to this century, is spoken today by around 50,000 people scattered worldwide. Spurred on by persecution, Turoyo-speaking immigrants began to arrive in the US as early as the late 1890s. We focus our study on a northern New Jersey community in which Turoyo is spoken. This tight-knit community, whose religious and social center is the Mor Gabriel Syriac Orthodox Church, is made up of around 200 families. The community is working hard to pass the language on to their children through speaking Turoyo in the home and in church, and also through programs including a specially created Sunday school curriculum, a weekly Aramaic school, and a summer day camp. However, despite the community’s best efforts, language shift is taking place. We use a sociolinguistic approach involving sociolinguistic methods and interviews to show that family, social networks, and religion influence who is most likely to be a proficient speaker of Turoyo in this community, but that identity is the one sociolinguistic variable that can best account for the variety of cases in which language shift is taking place.
Juhuri: From the Caucasus to New York City
Authors: Borjian Habib , Kaufman Daniel
Published: January 2016

Juhuri is a dialect of the Tat language of the eastern Caucasus (specifically, Dagestan and Azerbaijan). Although Juhuri is dialectologically related to Persian, it is not mutually intelligible with any Persian dialect. The Juhuri speakers, called Mountain Jews, are estimated at around 200,000, most of whom have immigrated to Israel and the United States. The New York community is largely centered in Brooklyn around the Kavkazi Jewish Congregation. The language is still spoken by those born in the Caucasus, and is maintained in some families and some spheres of daily life. Many of these Mountain Jews are multilingual in Juhuri, Russian, Azerbaijani, Hebrew, and English. In this article, we situate the language within the context of the New York expatriate community and explore the role of Juhuri in relation to ethno-religious identity, language attitude, and functional domains. The data reported on here are based on interviews and a written survey. We conclude that although the odds are heavily stacked against the survival of Juhuri, there may be a critical mass of language activists who can turn the tide. The fate of the language in the twenty-first century will likely be decided in the next two decades.
“Speak Turkish!” or not? Language choices, identities and relationship building within New York’s Turkish community
Authors: Otcu-Grillman Bahar
Published: January 2016

This article draws on an ethnographic case study on a Turkish community-based school in New York, and discusses relationship building within this community. The larger study investigated the following research question: What is the role and function of a Turkish Saturday school in developing and maintaining Turkish language and constructing a Turkish cultural identity in the United States? It employed a conceptual framework combining language shift and maintenance, linguistic identity and ideology. Ethnographic data were analyzed following Gee’s (
Unnatural narratology: core issues and critical debates
Authors: Biwu Shang
Published: January 2016

Taking anti-mimetic narratives as its primary object of investigation, unnatural narratology aspires to establish its status as a discipline of unnatural poetics. In recent years, it has rapidly developed into one of the most prominent sub-branches of postclassical narratology, standing in direct parallel to feminist narratology, rhetorical narratology, and cognitive narratology. This paper begins by delineating various definitions of unnatural narrative and proceeds to discuss unnaturalness, interpretative strategies, heuristic values, and the interrelations between unnatural narratology and other schools of narratological thought, so as to investigate the core issues of unnatural narratology and the critical debates on it. The paper ends with an outline set of directions for future explorations in this field.
An interlingual study of the lexico-semantic field LAUGH in Ken Kesey’s One Flew over the Cuckoo’s Nest
Authors: Hempelmann Christian F. , Gironzetti Elisa
Published: January 2016

This paper presents a series of theoretical and methodological choices against previous research and innovations for practical structuralist lexical field studies. Starting from a critical literature review of relevant work, it develops a synchronic interlingual study of the lexico-semantic field around words for laugh, smile, grin, etc. in an aligned corpus of eight translations of Kesey’s novel One Flew over the Cuckoo’s Nest and the English original text. Studies on paradigmatically-defined lexical fields of semantically competing words, such as the present one, have been criticized for not scaling beyond the actual field investigated. But with explicit methodological decisions and for specific domains for which aligned multilingual corpora exist they are shown to yield valuable insights. This paper reports the progress in lexical field theory, while also reviving semantic features and applying visual analytics, by way of analyzing examples from an aligned literary corpus.
Local Deplanation Of Double Reinforced Beam Cross Section Under Bending
Authors: Baltov Anguel , Yanakieva Ana
Published: January 2016

Bending of beams, double reinforced by means of thin composite layers, is considered in the study. Approximate numerical solution is proposed, considering transitional boundary areas, where smooth quadratic transition of the elasticity modulus and deformations take place. Deplanation of the cross section is also accounted for in the areas. Their thickness is found equalizing the total stiffness of the cross section and the layer stiffness. Deplanation of the cross section of the transitional area is determined via the longitudinal deformation in the reinforcing layer, accounting for the equilibrium between the internal and the external moment, generated by the longitudinal stresses in the cross section. A numerical example is given as an illustration demonstrating model’s plausibility. The model allows the design and the calculation of recycled concrete beams double reinforced by means of thin layers. The approach is in agreement with modern design of nearly zero energy buildings (NZEB).
Rayleigh Wave In A Rotating Nonlocal Magnetoelastic Half-Plane*
Authors: Roy Indrajit , Acharya D. P. , Acharya Sourav
Published: January 2016

This paper investigates the propagation of Rayleigh surface waves in a rotating semi-infinite solid medium, permeated by an initial magnetic field in the context of linear nonlocal elasticity. Frequency equations are derived and the combined effect of magnetic field and rotation on Rayleigh wave propagation, based on the linear theory of nonlocal elasticity has been studied. Effects of magnetic field, as well as rotation on Rayleigh wave propagation in a nonlocal medium, have also been analyzed in details as special cases. Numerical calculations, graphs and discussions presented in this paper lead us to some important conclusions. Fourier double integral transform technique has been applied to solve the problem.
Numerical Investigation Of Nonlinear Waves Connected To Blood Flow In An Elastic Tube With Variable Radius
Authors: Dimitrova Zlatinka I.
Published: January 2016

We investigate flow of incompressible fluid in a cylindrical tube with elastic walls. The radius of the tube may change along its length. The discussed problem is connected to the fluid-structure interaction in large human arteries and especially to nonlinear effects. The long-wave approximation is applied to solve model equations. The obtained model Korteweg-deVries equation possessing a variable coefficient is reduced to a nonlinear dynamical system of three first order differential equations. The low probability of a solitary wave arising is shown. Periodic wave solutions of the model system of equations are studied and it is shown that the waves, that are consequence of the irregular heart pulsations may be modelled by a sequence of parts of such periodic wave solutions.
Koroze slitin Zr–Nb a Zr–Sn za simulovaných podmínek reaktoru VVER
Authors: Krausová A. , Macák J. , Sajdl P. , Renčiuková V. , Novotný R.
Published: January 2016

Oxidační kinetiku lze v případě koroze zirkoniových slitin rozdělit do dvou stádií, která jsou od sebe oddělená transientním stavem. Výskyt transientního stavu je z korozního hlediska klíčový, neboť při něm dochází ke zvýšení rychlosti oxidace. V této práci byly pomocí in-situ elektrochemické impedanční spektroskopie studovány slitiny zirkonia Zr–Nb a Zr–Sn při teplotě 340 °C a tlaku 15 MPa v prostředí, které simulovalo chladivo reaktoru VVER. Cílem dlouhodobých experimentů (až 9000 h) bylo charakterizovat oxidační kinetiku v závislosti na expoziční době a typu zirkoniové slitiny. Výsledky ukázaly, že za uvedených experimentálních podmínek dochází u slitiny zirkonia Zr–Sn k dřívějšímu dosažení přechodu, tzv. transientnímu stavu.
Testování mechanických vlastností Inconelu 713 a 738 pro pokročilé reaktory
Authors: Marušáková Daniela , Berka Jan , Sajdl Petr
Published: January 2016

Mezi kovové konstrukční materiály pro komponenty pokročilých plynem chlazených reaktorů patří niklové superslitiny Inconel 713 a 738. V rámci projektu aplikovaného výzkumu řešeného na VŠCHT Praha a CV Řež byly testovány mechanické vlastnosti těchto slitin ve výchozím stavu a po expozici vzorků v heliu obsahujícím stopové nečistoty (CO, H2, CH4, H2O) při teplotě 900 °C po dobu 1000 hod. Vzorky testovaných slitin byly vyrobeny: a) z původního litého materiálu (virgin), b) přepracovaného materiálu z výroby (revert 100R) a c) materiálu získaného slitím těchto materiálů v poměru 50V/50R. K určení mechanických vlastností materiálů po expozicích byly provedeny tahové zkoušky a strukturní analýza pomocí SEM. Porovnány byly změny vlastností po expozici jednotlivých testovaných slitin i stejné slitiny vyrobené různými postupy. Zatímco mez kluzu a mez pevnosti poklesly u Inconelu 713 jen zlehka, u Inconelu 738 poklesly výrazně. Stav 50V/50R vykazoval lepší mechanické vlastnosti než stav revert 100R.
Koroze kovových spojovacích prostředků ve dřevĕ modifikovaném silikony
Authors: Daňková J. , Majstríková T. , Mec P. , Ščučka J. , Martinec P.
Published: January 2016

Ochranné prostředky na dřevo ve stavebních konstrukcích mohou, za určitých podmínek, akcelerovat korozi kovových spojovacích prostředků. Fenomén koroze kovů v chemicky modifikovaném dřevě silikony je významným faktorem pro stanovení adekvátních pravidel pro uplatnění těchto materiálů v rámci stavební konstrukce. V článku jsou prezentovány výsledky experimentální studie vlivu dřeva modifikovaného komerčním prostředkem na bázi silikonů na vybrané kovy. Bylo testováno modifikované dřevo smrku ztepilého (Picea Abies L.), dubu (Quercus SPP.) a modřínu opadavého (Larix decidua Mill.) a komerční stavební kovové hřebíky železné, měděné a železné pozinkované. Vzorky dřeva s aplikovanými kovy byly exponovány 6 týdnů v prostředí s teplotou 30°C a vzdušnou vlhkostí 100%, kdy vlhkost dřeva se blížila bodu nasycení vláken. Po uplynutí doby expozice bylo provedeno vizuální hodnocení povrchu ze dřeva vyjmutých kovových hřebíků, a u vybraných vzorků byly korozní produkty analyzovány metodou infračervené spektroskopie. Výsledky provedených experimentů a analýz ukazují na zřejmou materiálovou kompatibilitu mezi modifikovaným dřevem smrku ztepilého (Picea Abies L.) a železnými spojovacími prostředky v prostředí s vysokou vzdušnou vlhkostí. Po uplynutí expoziční doby byla intenzita koroze povrchu železného stavebního hřebíku nižší ve dřevě modifikovaném, než ve dřevě bez modifikace.
Hodnocení materiálů používaných při readjustaci a ukládání daguerrotypií pomocí modifikovaného Oddyho testu
Authors: Švadlena J. , Borýsková Š.
Published: January 2016

Významným nebezpečím pro dlouhodobé zachování historických kovových předmětů jsou nevhodné podmínky uložení a použití materiálů, které mohou být zdrojem polutantů ve vnitřních atmosférách. Materiály navržené pro použití při ochraně a uložení sbírkových předmětů je potřeba dostatečně ověřit z hlediska bezpečnosti pro chráněné předměty, než mohou být tyto materiály s jistotou doporučeny. Jednou ze základních technik používaných pro účely testování nových i ověření již používaných materiálů je tzv. Oddyho test, jehož výhody spočívají v jeho jednoduchosti na experimentální vybavení a možnosti modifikovat tuto metodu pro konkrétní použití. V této práci je uplatněna varianta Oddyho testu modifikovaná pro konkrétní případ – hodnocení materiálů, které se používají při readjustaci daguerrotypií. Vedle běžně používaného vizuálního hodnocení výsledků Oddyho testu byla pro porovnání použita i elektrochemická redukce korozních produktů na exponovaných vzorcích. Výsledky naznačují, že vliv testovaných materiálů je minoritní v porovnání s vlivem stavu povrchu daguerrotypie. Tento závěr odpovídá předpokladům bezpečnosti testovaných materiálů, které se v konzervátorské praxi používají při ochraně archivních a historických fotografických fondů.
14. Jahrestagung der Sektion Molekulare Diagnostik der DGKL am 11. und 12. Juni 2015 in der Evangelischen Akademie Tutzing
Authors: Findeisen Peter , Hoffmann Georg , Kiehntopf Michael , Klein Hanns-Georg , Ceglarek Uta , Teupser Daniel
Published: January 2016

Die 14. Jahrestagung der Sektion Molekulare Diagnostik der Deutschen Vereinten Gesellschaft für Klinische Chemie und Laboratoriumsmedizin (DGKL) stand unter dem Leitthema „Deep Phenotyping and Data Integration“ und fand vom 11.-12.06.2014 in Tutzing statt. Die Thematik wurde aus dem Blickwinkel der vier Arbeitsgruppen der Sektion (Genomics, Bioinformatik, Biobanking, Proteomics/Metabolomics) vorgestellt und diskutiert. Breiten Raum nahmen neue Herangehensweisen für die präzise, nach standardisierten Kriterien durchgeführte Dokumentation des Phänotyps (der „Klinik“) und deren Verknüpfung mit Omics-basierten Techniken ein. Es wurden aktuelle Beispiele für Integration dieser Daten zu einem sinnvollen Ganzen und die Schaffung eines medizinischen Mehrwerts vorgestellt, sowie bestehende Herausforderungen diskutiert. Dabei wurde evident, dass eine patientenorientierte, medizinisch sinnvolle Dateninterpretation und Befundung nur durch die Zusammenführung von Phänotypinformationen und großen Datensätzen möglich ist.
Screen Printing of SU-8 Layers for Microstructure Fabrication / Ar Sietspiedi Uzklātu SU-8 Pārklājumi Mikro-Struktūru Izgatavošanai
Authors: Klavins J. , Mozolevskis G. , Ozols A. A. , Nitiss E. , Rutkis M.
Published: January 2016

We report on a screen printing fabrication process for large-area SU-8 layers utilised for the preparation of microstructures in display devices such as microelectronic, electrowetting or bistable devices. The screen printing method has been selected for its effectiveness and simplicity over traditionally used spin-coating ones. Layers and microstructures produced thereof have shown proper homogeneity. Relationships between screen parameters to coating thickness have been established. Coating on an ITO (indium tin oxide) hydrophobic surface is possible when surface has been treated by UV/Ozone to increase its aqueous ability. To this end, the hydrophilic microstructure grids have been successfully built on a hydrophobic layer by screen printing and traditional lithography processes. Compared to conventional spin-coating methods, the screen printing method offers the advantages of simple, cheap and fast fabrication, and is especially suitable for large-area display fabrication
Positivity and contractivity in the dynamics
of clusters’ splitting with derivative
of fractional order
Authors: Goufo Emile Franc Doungmo , Mugisha Stella
Published: January 2016

Classical models of clusters’ fission have failed to fully explain strange phenomenons like the phenomenon
of shattering (Ziff et al., 1987) and the sudden appearance of infinitely many particles in some systems
with initial finite particles number. Furthermore, the bounded perturbation theorem presented in (Pazy, 1983) is not
in general true in solution operators theory for models of fractional order γ
(with 0 < γ ≤ 1). In this article, we introduce and study a model that can be understood as the fractional generalization of the clusters’ fission process.We
make use of the theory of strongly continuous solution operators for fractional models (analogues of C0-semigroups
for classical models) and the subordination principle for fractional evolution equations (Bazhlekova, 2000, Prüss,
1993) to analyze and show existence results for clusters’ splitting model with derivative of fractional order. In
the process, we exploit some properties of Mittag-Leffler relaxation function (Berberan-Santos, 2005), the He’s
homotopy perturbation (He, 1999) and Kato’s type perturbation (Banasiak, 2006) methods. The Cauchy problem for
multiplication operator in the fractional dynamics is first considered, before we perturb it. Some additional concepts
like Laplace transform, Hille-Yosida theorem and the dominated convergence theorem are use to finally show that
there is a solution operator to the full fractional model that is positive and contractive.
The classification of partially
symmetric 3-braid links
Authors: Stoimenov Alexander
Published: January 2016

We classify 3-braid links which are amphicheiral as unoriented links, including a new proof of Birman-
Menasco’s result for the (orientedly) amphicheiral 3-braid links. Then we classify the partially invertible 3-braid
links.
Exact solutions of supersymmetric Burgers
equation with Bosonization procedure
Authors: Ren Bo , Gao Xiao-Nan , Yu Jun , Liu Ping
Published: January 2016

Using bosonization approach, the N=1 supersymmetric Burgers (SB) system is changed to a system of
coupled bosonic equations. The difficulties caused by intractable anticommuting fermionic fields can be effectively
avoided with the approach. By solving the coupled bosonic equations, the traveling wave solutions of the SB system
can be obtained with the mapping and deformation method. Besides, the richness of the localized excitations of
the supersymmetric integrable system is discovered. In the meanwhile, the similarity reduction solutions of the SB
system are also studied with the Lie point symmetries theory.
Weak amenability for the second dual
of Banach modules
Authors: Anousheh Fatemeh , Bagha Davood Ebrahimi , Bodaghi Abasalt
Published: January 2016

Let A be a Banach algebra, E be a Banach A-bimodule and Δ E → A be a bounded Banach A-bimodule homomorphism. It is shown that under some mild conditions, the weakΔ''-amenability of E'' (as an A''-bimodule) necessitates weak Δ-amenability of E (as an A-bimodule). Some examples of weak-amenable Banach modules are provided as well.
Three open problems and a conjecture
Authors: Qin Huizeng , Furdui Ovidiu
Published: January 2016

In this paper we solve three open problems and a conjecture related to the calculations of some classes of
multiple series posed by Furdui in [1].
Module Connes amenability
of hypergroup measure algebras
Authors: Amini Massoud
Published: January 2016

We define the concept of module Connes amenability for dual Banach algebras which are also Banach
modules with a compatible action. We distinguish a closed subhypergroup K0 of a locally compact measured
hypergroup K, and show that, under different actions, amenability of K, M.K0/-module Connes amenability of
M.K/, and existence of a normal M.K0/-module virtual diagonal are related.
Some extensions of a certain integral
transform to a quotient space
of generalized functions
Authors: Al-Omari Shrideh K.Q. , Al-Omari Jafar F.
Published: January 2016

In this paper, we establish certain spaces of generalized functions for a class of ɛs
2,1 transforms. We give
the definition and derive certain properties of the extended ɛs
2,1 transform in a context of Boehmian spaces. The
extended ɛs
2,1 transform is therefore well defined, linear and consistent with the classical ɛs
2,1 transforms. Certain
results are also established in some detail.
Computation of double Hopf points
for delay differential equations
Authors: Xu Yingxiang , Shi Tingting
Published: January 2016

Relating to the crucial problem of branch switching, the calculation of codimension 2 bifurcation points
is one of the major issues in numerical bifurcation analysis. In this paper, we focus on the double Hopf points for
delay differential equations and analyze in detail the corresponding eigenspace, which enable us to obtain the finite
dimensional defining system of equations of such points, instead of an infinite dimensional one that happens naturally
for delay systems. We show that the double Hopf point, together with the corresponding eigenvalues, eigenvectors
and the critical values of the bifurcation parameters, is a regular solution of the finite dimensional defining system
of equations, and thus can be obtained numerically through applying the classical iterative methods. We show our
theoretical findings by a numerical example.
A detailed analysis for the fundamental
solution of fractional vibration equation
Authors: Liu Li-Li , Duan Jun-Sheng
Published: January 2016

In this paper, we investigate the solution of the fractional vibration equation, where the damping term is
characterized by means of the Caputo fractional derivative with the order α satisfying 0 < α < 1 or 1 < α < 2.
Detailed analysis for the fundamental solution y(t) is carried out through the Laplace transform and its complex
inversion integral formula. We conclude that y(t) is ultimately positive, and ultimately decreases monotonically and
approaches zero for the case of 0 < α < 1, while y(t) is ultimately negative, and ultimately increases monotonically
and approaches zero for the case of 1 < α < 2. We also consider the number of zeros, the maximum zero and the
maximum extreme point of the fundamental solution y(t) for specified values of the coefficients and fractional order.
Duplication in a model of rock fracture with
fractional derivative without singular kernel
Authors: Goufo Emile F. Doungmo , Pene Morgan Kamga , Mwambakana Jeanine N.
Published: January 2016

We provide a mathematical analysis of a break-up model with the newly developed Caputo-Fabrizio
fractional order derivative with no singular kernel, modeling rock fracture in the ecosystem. Recall that rock fractures
play an important role in ecological and geological events, such as groundwater contamination, earthquakes and
volcanic eruptions. Hence, in the theory of rock division, especially in eco-geology, open problems like phenomenon
of shattering, which remains partially unexplained by classical models of clusters’ fragmentation, is believed to be
associated with an infinite cascade of breakup events creating a ‘dust’ of stone particles of zero size which, however,
carry non-zero mass. In the analysis, we consider the case where the break-up rate depends of the size of the rock
breaking up. Both exact solutions and numerical simulations are provided. They clearly prove that, even with this
latest derivative with fractional order and no singular kernel, the system describing crushing and grinding of rocks
contains (partially) duplicated fractional poles. According to previous investigations, this is an expected result that
provides the new Caputo-Fabrizio derivative with a precious and promising recognition.
System of fractional differential equations
with Erdélyi-Kober fractional integral
conditions
Authors: Thongsalee Natthaphong , Laoprasittichok Sorasak , Ntouyas Sotiris K. , Tariboon Jessada
Published: January 2016

In this paper we study existence and uniqueness of solutions for a system consisting from fractional
differential equations of Riemann-Liouville type subject to nonlocal Erdélyi-Kober fractional integral conditions.
The existence and uniqueness of solutions is established by Banach’s contraction principle, while the existence of
solutions is derived by using Leray-Schauder’s alternative. Examples illustrating our results are also presented.
Double image multi-encryption algorithm
based on fractional chaotic time series
Authors: Guo Zhenghong , Yang Jie , Zhao Yang
Published: January 2016

In this paper, we introduce a new image encryption scheme based on fractional chaotic time series, in
which shuffling the positions blocks of plain-image and changing the grey values of image pixels are combined to
confuse the relationship between the plain-image and the cipher-image. Also, the experimental results demonstrate
that the key space is large enough to resist the brute-force attack and the distribution of grey values of the encrypted
image has a random-like behavior.
On numerical invariants
for knots in the solid torus
Authors: Bataineh Khaled
Published: January 2016

We define some new numerical invariants for knots with zero winding number in the solid torus. These
invariants explore some geometric features of knots embedded in the solid torus. We characterize these invariants
and interpret them on the level of the knot projection. We also find some relations among some of these invariants.
Moreover, we give lower bounds for some of these invariants using Vassiliev invariants of type one. We connect our
invariants to the bridge number in the solid torus. We give a lower bound and an upper bound of the wrap of a knot
in the solid torus in terms of our new invariants.
On Vn-semigroups
Authors: Gu Ze , Tang Xilin
Published: January 2016

In this paper, we give some new characterizations of orthodox semigroups in terms of the set of inverses
of idempotents. As a generalization, a new class of regular semigroups, namely Vn-semigroups, is introduced. Also,
we give a characterization of Vn-semigroups and investigate some properties of Vn-semigroups. Furthermore, we
show that the class of Vn-semigroups is closed under direct products and homomorphic images. However, regular
subsemigroups of Vn-semigroups (n ≥ 2) are not necessarily Vn-semigroups in general. Therefore, the class of
Vn-semigroups (n ≥ 2) does not form an e-variety. Finally, we obtain that a E-solid semigroup S is a V2-semigroup
if and only if S is orthodox.
A Method Of Calculating Thermal Diffusivity And Conductivity For Irregularly Shaped Specimens In Laser Flash Analysis
Authors: Szałapak Jerzy , Kiełbasiński Konrad , Krzemiński Jakub , Młożniak Anna , Zwierkowska Elżbieta , Jakubowska Małgorzata , Pawłowski Radosław
Published: January 2016

The Low Temperature Joining Technique(LTJT) using silver compounds enables to significantly increase the thermal conductivity between joined elements, which is much higher than for soldered joints. However, it also makes difficult to measure the thermal conductivity of the joint.The Laser Flash Analysis(LFA) is a non-intrusive method of measuring the temperature rise of one surface of a specimen after excitation with a laser pulse of its other surface. The main limitation of the LFA method is its standard computer software, which assumes the dimensions of a bonded component to be similar to those of the substrate, because it uses the standard Parker’s formula dedicated for one-dimensional heat flow. In the paper a special design of measured specimen was proposed, consisting of two copper plates of different size joined with the sintered silver layer. It was shown that heat properties of these specimens can also be measured after modifying the LFA method. The authors adapted these specimens by masking the false heat signal sourced from the uncovered plate area. Another adaptation was introducing a correcting factor of the heat travel distance, which was calculated with heat-flow simulations and placed into the Parker’s formula. The heat-flow simulated data were compared with the real LFA measurement results, which enabled estimation of the joint properties,e.g.its porosity.
Analysis Of Factors Affecting Gravity-Induced Deflection For Large And Thin Wafers In Flatness Measurement Using Three-Point-Support Method
Authors: Liu Haijun , Dong Zhigang , Kang Renke , Zhou Ping , Gao Shang
Published: January 2016

Accurate flatness measurement of silicon wafers is affected greatly by thegravity-induced deflection(GID) of the wafers, especially for large and thin wafers. The three-point-support method is a preferred method for the measurement, in which the GID uniquely determined by the positions of the supports could be calculated and subtracted. The accurate calculation of GID is affected by the initial stress of the wafer and the positioning errors of the supports. In this paper, afinite element model(FEM) including the effect of initial stress was developed to calculate GID. The influence of the initial stress of the wafer on GID calculation was investigated and verified by experiment. A systematic study of the effects of positioning errors of the support ball and the wafer on GID calculation was conducted. The results showed that the effect of the initial stress could not be neglected for ground wafers. The wafer positioning error and the circumferential error of the support were the most influential factors while the effect of the vertical positioning error was negligible in GID calculation.
Interaction Of Calcium Phosphate Nanoparticles With Human Chorionic Gonadotropin Modifies Secondary And Tertiary Protein Structure
Authors: Al-Hakeim Hussein K , Al-Zabeba Rahman S. , Grulke Eric , Jaffar Al-Mulla Emad A.
Published: January 2016

Calcium phosphate nanoparticles (CaPNP) have good biocompatibility and bioactivity inside human body. In this study, the interaction between CaPNP and human chorionic gonadotropin (hCG) was analyzed to determine the changes in the protein structure in the presence of CaPNP and the quantity of protein adsorbed on the CaPNP surface. The results showed a significant adsorption of hCG on the CaPNP nanoparticle surface. The optimal fit was achieved using the Sips isotherm equation with a maximum adsorption capacity of 68.23 µg/mg. The thermodynamic parameters, including ∆H° and ∆G°, of the adsorption process are positive, whereas ∆S° is negative. The circular dichroism results of the adsorption of hCG on CaPNP showed the changes in its secondary structure; such changes include the decomposition of α-helix strand and the increase in β-pleated sheet and random coil percentages. Fluorescence study indicated minimal changes in the tertiary structure near the microenvironment of the aromatic amino acids such as tyrosine and phenyl alanine caused by the interaction forces between the CaPNP and hCG protein. The desorption process showed that the quantity of the hCG desorbed significantly increases as temperature increases, which indicates the weak forces between hCG and the surface.
Comparison Of Cd2+ Biosorption And Bioaccumulation By Bacteria – A Radiometric Study
Authors: Machalová Linda , Pipíška Martin , Trajteľová Zuzana , Horník Miroslav
Published: January 2016

In this work, bioaccumulation and biosorption characteristics of Cd2+ ions by both dead and living non-growing biomass of gram-positive bacteria Kocuria palustris and Micrococcus luteus isolated from spent nuclear fuel pools were compared. The radioindicator method with radionuclide 109Cd was used to obtain precise and reliable data characterizing Cd compartmentalization in bacterial cells. The following cellular distribution of Cd in living non-growing biomass after 4 h incubation in solutions containing different concentration of Cd2+ ions (100, 250, 500, 750 and 1000 µmol/L) spiked with 109CdCl2 under aeration at 30 °C were obtained: in M. luteus almost 85 % of Cd was localized on the cell surface and 15 % in cytoplasm. Similarly, in K. palustris 83 % of Cd was localized on the cell surface and 17 % in cytoplasm. The data were obtained by gamma spectrometry of extracts and solids after sequential extraction of biomass with 5 mM Ca(NO3)2 and 20 mM EDTA. Biosorption of Cd by non-living bacterial biomass is a rapid process strongly affected by solution pH and as was confirmed by FTIR analysis beside carboxylate ions also other functional groups such as amino and phosphate contribute to Cd binding by bacterial cell surfaces. Maximum sorption capacities Qmax (μmol/g) calculated from the Langmuir isotherm were 444 ± 15 μmol/g for M. luteus and 381 ± 1 μmol/g for K. palustris.
Removal Of Contaminants From Aqueous Solutions Using Hop (Humulus Lupulus L.) Agricultural By-Products
Authors: Partelová Denisa , Šuňovská Anna , Marešová Jana , Horník Miroslav , Pipíška Martin , Hostin Stanislav
Published: January 2016

Agricultural wastes can be used as an alternative to the existing sorbents for the removal of metals or synthetic dyes from contaminated liquids. In this work, the fine powdered biomass of the hop (Humulus lupulus L.) variety Osvald's clone 72 and variety Bohemie as a sorbent for the removal of Cd from aqueous solutions of CdCl2 spiked with radionuclide 109Cd and synthetic dyes thioflavine T (ThT) or methylene blue (MB) from single dye solutions under conditions of batch systems was used. The maximum sorption capacity Q = 264 µmol Cd/g (d.w.) was found in the case of the leaf biomass of hop (H. lupulus L.) variety Osvald's clone 72 at the initial concentration of CdCl2 10,000 µmol/dm3, whereby the sorption capacity decreased in the order Qleaves : Qstems : Qroots = 1.0 : 0.8 : 0.7. The sorbed amount of Cd was removed from the hop biomass with the following increasing desorption efficiency of the extraction reagents: deionised H2O << 0.1 mol/dm3 HCl ≤ 0.1 mol/dm3 EDTA-Na2. Similarly as in the case of Cd sorption, the kinetics of ThT and MB sorption by the leaf biomass of the hop (H. lupulus L.) variety Bohemie were also showed as two-phase processes. The maximum sorption of ThT approx. Q = 19 mg/g (d.w.) and MB approx. Q = 70 mg/g (d.w.) were found within the range of the initial values of pH 4 – 7. The sorption of both dyes by the leaf biomass from single dye solutions decreased with increasing biomass concentration and on the other hand increased with increasing the initial concentrations of ThT or MB. The process of ThT and MB sorption was better described by the Langmuir model than the Freundlich model of sorption isotherm. From the obtained values of Qmax, it was found that in the case of MB the dried leaf biomass showed more than 2-times higher sorption capacity (Qmax = 184 mg/g; d.w.) in comparison with the value predicted for ThT. Obtained results suggest that dried plant biomass of hop (H. lupulus L.) as agricultural by-products can be used as a potential sorbent for both types of studied contaminants.
The Emergence of Metropolitan News
Authors: Sjøvaag Helle
Published: January 2016

This article presents a quantitative and comparative content analysis of four Norwegian regional newspapers owned by the Schibsted Media Group. The aim of the analysis is to establish levels of localism in the online and printed editions of the newspapers and to discuss the relation between the local, regional, metropolitan and national news levels on two publishing platforms. Results show that the local profile is increasingly becoming the defining feature of these regional newspapers, even more so online than in print. As the analysis shows an increase in the amount of everyday life-related stories in the local news content, this study finds that Norwegian regional newspapers are moving towards a more metropolitan profile.
A Hidden Theory in Financial Crisis Journalism?
Authors: Bjerke Paul , Fonn Birgitte Kjos
Published: January 2016

The present article analyses press coverage of the dramatic finance crisis and the ensuing European debt crisis in Europe, in three decisive periods. The authors conduct quantitative and qualitative content analyses of two major mainstream Norwegian newspapers, Aftenposten and Dagbladet, employing concepts and methods from framing theory, to analyse coverage in the framework of two contesting schools in economics.

The study finds traces of discussions of finance brokers’ ethics and some discussions of governmental regulations that made the 2008 crisis possible, but few indications of a basic discussion of the system as such. The authors conclude that the crisis was framed more as a superficial, short-term problem (as per a mainstream, neoliberal theory of economics) than as a deeper and long-term system problem (as a more critical ‘political economics’ theory would have held).
Vernacular Meaning Making
Authors: Axelson Tomas
Published: January 2016

The outcome of an audience study supports theories stating that stories are a primary means by which we make sense of our experiences over time. Empirical examples of narrative impact are presented in which specific fiction film scenes condense spectators’ lives, identities, and beliefs. One conclusion is that spectators test the emotional realism of the narrative for greater significance, connecting diegetic fiction experiences with their extra-diegetic world in their quest for meaning, self and identity. The ‘banal’ notion of the mediatization of religion theory is questioned as unsatisfactory in the theoretical context of individualized meaning-making processes. As a semantically negatively charged concept, it is problematic when analyzing empirical examples of spectators’ use of fictional narratives, especially when trying to characterize the idiosyncratic and complex interplay between spectators’ fiction emotions and their testing of mediated narratives in an exercise to find moral significance in extra-filmic life. Instead, vernacular meaning-making is proposed.
User perceptions of mental health consequences of hallucinogen use in self-identified spiritual contexts
Authors: Johnstad Petter Grahl
Published: January 2016

Aims

The article aims to gain insight into the private worlds of users of hallucinogenic drugs in spiritual contexts, with a focus on the self-perceived mental health implications of their practices. This will help us understand the rationale behind and consequences of hallucinogenic drug use.

Method

Respondents were recruited at several internet fora for individual email-mediated interviews (n = 5) or group interviews in public discussion threads (n = 11). They were predominantly males in their 30s or 40s with stable jobs and living conditions and extensive hallucinogen experience.

Results

Both positive and adverse consequences were assessed, and respondents emphasised the capacity of hallucinogenic drugs for healing and personal growth; even adverse experiences (“bad trips”) were regarded as valuable for these purposes. The dependence potential of these drugs was regarded as low because of an inherent self-regulatory mechanism whereby positive effects disappear with overuse. A minority of participants reported mental health problems that may result from their hallucinogen use, but the majority have experienced no significant adverse reactions after many years of use. This should be seen in light of the low frequency of their hallucinogen use.

Conclusion

The study obtained evidence of a predominantly male group of mature users taking hallucinogens in carefully prepared sessions for the purpose of personal spiritual growth, acknowledging some risks but also several benefits from this practice.
Environmental and temperamental correlates of alcohol user patterns in grade 7 students
Authors: Torsheim Torbjørn , Sørlie Mari-Anne , Olseth Asgeir , Bjørnebekk Gunnar
Published: January 2016

Aims

We examined the effects of temperamental dispositions, friends using alcohol and parental monitoring on grade 7 students' alcohol use patterns.

Design

The analyses were drawn from a cross-sectional survey of 3710 grade 7 students (mean age =12.53) that participated in a large Norwegian school-based intervention study. Alcohol user patterns were measured through combining self-reported lifetime alcohol experience, heavy episodic drinking and any alcohol involvement in the previous 30 days. Behavioural inhibition/activation sensitivity (BIS/BAS), parental monitoring and the number of friends using alcohol were measured through the adolescents' self-report.

Results

As many as 68.8% of boys and 83.3% of girls were non-users of alcohol, whereas 9.1% of boys and 3.9% of girls reported use of alcohol last month. Heavy episodic drinking last month was reported by 3.1% of the boys and by 0.8 % of the girls. A multinomial regression analysis revealed strong associations between the number of friends using alcohol and alcohol user patterns, moderate inverse associations between parental monitoring and alcohol user patterns, and a weak association between BIS/BAS components and alcohol user patterns.

Conclusion

The results demonstrate the importance of socio-environmental factors in a period in which alcohol use is predictive of later negative outcomes.
On the Solution of Burgers’ Equation with the New
Fractional Derivative
Authors: Kurt Ali , Çenesiz Yücel , Tasbozan Orkun
Published: January 2016

Firstly in this article, the exact solution of a time
fractional Burgers’ equation, where the derivative is conformable
fractional derivative, with dirichlet and initial
conditions is found byHopf-Cole transform. Thereafter the
approximate analytical solution of the time conformable
fractional Burger’s equation is determined by using a Homotopy
Analysis Method(HAM). This solution involves an
auxiliary parameter ~ which we also determine. The numerical
solution of Burgers’ equation with the analytical
solution obtained by using the Hopf-Cole transform is
compared.
A Note on Optimal Control Problem Governed by
Schrödinger Equation
Authors: Koçak Yusuf , Çelik Ercan , Aksoy Nigar Yıldırım
Published: January 2016

In this work, we present some results showing
the controllability of the linear Schrödinger equation with
complex potentials. Firstly we investigate the existence
and uniqueness theorem for solution of the considered
problem. Then we find the gradient of the cost functional
with the help of Hamilton-Pontryagin functions. Finally
we state a necessary condition in the form of variational
inequality for the optimal solution using this gradient.
Oscillation of fractional order functional differential equations
with nonlinear damping
Authors: Bayram Mustafa , Adiguzel Hakan , Ogrekci Suleyman
Published: January 2016

In this paper, we are concerned with the oscillatory
behavior of a class of fractional differential equations
with functional terms. The fractional derivative is defined
in the sense of the modified Riemann-Liouville derivative.
Based on a certain variable transformation, by using a generalized
Riccati transformation, generalized Philos type
kernels, and averaging techniques we establish new interval
oscillation criteria. Illustrative examples are also given.
Generalized Beddington model with the host
subject to the Allee Effect
Authors: Ufuktepe U. , Kapcak S.
Published: January 2016

We investigate the stability and invariant manifolds
of generalized Beddington model with the host population
subject to the Allee effect.We obtain the condition
for the existence of the fixed points and investigate the stability
of the system.