bluuebunny/crossref_metadata_2025_split huggingface dataset:
Biometria e qualidade fisiologica de sementes de juazeiro ( Ziziphus Joazeiro marth.) de diferentes matrizes do semiarido paraibano
Authors: Oliveira de Lucena Edjane , Ferreira da Nóbrega Lúcio Assíria Maria , Alves Bakke Ivonete , Adiel Carneiro Pimenta Marllus , Menezes Ramos Talytta 
Published: April 2018

A Caatinga é um bioma rico em diversidade de plantas e animais e muitas, com espécies endêmicas relevantes para a região. Sua vegetação é uma das mais exploradas por se tornar fonte de renda para a maioria da população da região nordeste. Dentre as espécies arbóreas presente, destaca-se o Ziziphus joazeiro possui inúmeras qualidades (forrageira, madeira, medicinal, paisagismo, restauração e recuperação ambiental. O presente estudo objetivou avaliar as variações biométricas e de germinação de sementes de dez matrizes de Zizyphus joazeiro, visando selecionar as matrizes com melhor potencial germinativo para produção de mudas. Avaliou-se a porcentagem de germinação, índice de velocidade de germinação, germinação média diária, comprimento de parte aérea, diâmetro do coleto, comprimento e massa seca e parte aérea. O delineamento estatístico foi um DIC em esquema fatorial e as médias comparadas pelo teste de Scott-Knott a 5 % de probabilidade e transformadas em arco seno. Verificou-se que existe uma variação genética e ambiental entre as matrizes. Com relação a porcentagem de germinação se destacaram as matrizes 1,2, 3, 4 e 5, em massa seca a matriz 9, em comprimento e diâmetro de frutos a matriz 1, 4 e 10 menor comprimento de sementes as matrizes 5 e 8.
Uso de fertilizante organomineral no desenvolvimento de mudas de rúcula
Authors: Oliveira Roberta Camargos , Silva João Eduardo Ribeiro , Aguilar Ariel Santivañez , Peres Diego , Luz Jose Magno Queiroz 
Published: April 2018

A rúcula é uma brássica cujas folhas são ricas em vitaminas, sais minerais e apresentam efeito medicinal. A produção de mudas é uma etapa importante do sistema de produção de hortaliças, pois influencia o desenvolvimento, o ciclo, a qualidade e a quantidade a ser produzida. Dentre as práticas de manejo, o uso de produtos organominerais líquidos ainda é recente. Diante disso, objetivou-se avaliar o efeito do carbono orgânico proveniente de um fertilizante organomineral líquido no desenvolvimento inicial de mudas de rúcula. O experimento, em delineamento de blocos ao acaso, em esquema fatorial (4 x 2) + 1, avaliou quatro doses (0.50; 0.75; 1.00 e 1.25%), duas fontes (Sulfato de zinco e fertilizante organomineral líquido) mais um tratamento testemunha sem a aplicação de produtos. A coleta das plantas foi realizada 32 dias após a semeadura. A presença de carbono orgânico é favorável ao desenvolvimento de mudas de rúcula. A aplicação do fertilizante organomineral líquido resultou em melhores médias das variáveis comprimento de raiz, número de folhas, massa seca da parte aérea, massa seca raiz, teor de clorofila A e teor de clorofila total em comparação com o sulfato de zinco, porém sem efeito em relação à testemunha.
CARBONATION RESISTANCE OF SLAG MORTARS ACTIVATED BY DIFFERENT ALKALI ACTIVATORS
Authors: BİLİM Cahit , ATİŞ Cengiz 
Published: April 2018

In this study, the carbonation depths of slag mortars activated by sodium silicate (water glass), sodium hydroxide and sodium carbonate were investigated and the results were compared to those of control mortar with CEM I 42.5 R normal Portland cement. In the mixture, the sand/binder ratio was 2.75 and the water/binder ratio was 0.50. Na concentrations in the mixture proportions were determined as 4%, 6%, and 8% for all the activators. For liquid sodium silicate activator, SiO2/Na2O ratios (Ms) of 0.75, 1, 1.25, and 1.5 were also chosen. Prismatic specimens having 40 x 40 x 160 mm dimensions were prepared from both fresh Portland cement and slag mortar mixtures for the measurements. The day after the mortar casting, the prisms were demolded and placed in a humidity cabinet at 65% ± 5 relative humidity and 22 ± 2 °C temperature. The carbonation tests of mortars were conducted at 7, 28, 90 and 180 days. It was observed that the carbonation resistance of slag mortars activated by alkalis was lower than that of control mixture with Portland cement. However, it was also seen that an increment in the Na dosage of activator improved the resistance of the activated slag mortars to carbonation.
AQUIFER THERMAL ENERGY STORAGE SYSTEMS: BASIC CONCEPTS AND GENERAL DESIGN METHODS
Authors: AYDIN  ERTUĞRUL Nihan , HATİPOĞLU BAĞCI Zübeyde , ERTUĞRUL Özgür Lütfi 
Published: April 2018

Renewable energy plays an important role in meeting the ever increasing energy demand of the modern world. At this point, underground thermal energy storage has been suggested as a clean and efficient alternative of energy extraction for the sustainable future as one of the renewable energy varieties. Thermal energy storage systems in the aquifers have preluded the energy market with great success in many countries. Hot and cold natural energy sources are stored in the aquifer by using underground water to store the heat in this system. Efficiency of the system depends on several factors including groundwater temperatures and flow characteristics. Among the different underground thermal energy storage options, one of the most promising and commercial option is known as aquifer thermal energy storage (ATES). Based on the recent developments reported in the literature, general design procedures and construction techniques as well as relationships related with the efficiency of ATES systems are reviewed within the scope of this paper. The applications from the world and Turkey were discussed in a comparative approach.
APPLICABILITY OF SOLAR AND WIND ENERGY TECHNOLOGIES FOR A NON-RESIDENTIAL BUILDING
Authors: BAYHAN Burhan , ARSLAN Gökhan 
Published: April 2018

In this study, applicability of wind and solar energy technologies in a non-residential building located in Mersin, Turkey is investigated. As the non-residential building, a polyclinic was examined. Meteorological data was obtained from Turkish State Meteorological Service to investigate the solar and wind energy technologies. The data was examined statistically. By using wind turbine with 0.9 kW rated power, 2223.5 kWh electricity energy was generated. Similarly, PV panel with 20 % panel efficiency, 5kW total power and 15 m2 surface area, 4240 kWh electricity energy was generated. Annual energy consumption of the polyclinic was calculated 26107.52 kWh by using EnergyPlus software. To meet heating and cooling loads of the polyclinic, the air source heat pump was preferred. 8.51 % of the total demand can be supplied from wind turbine and 16.24 % by photovoltaic panels. The proposed wind-solar hybrid system for investigated region is not applicable due to low of the wind energy potential of the investigated region, the high price of the wind turbine and the proximity to the lifetime of the utilized components in the system to depreciation time. On the other hand, by using only photovoltaic panels system to generate electricity, it was determined that depreciation time will decrease from 17 to 11 years.
The Properties of The Intensity-Curvature Measurement Approaches: Applications In Magnetic Resonance Imaging of The Human Brain
Authors: Ciulla Carlo , Shikoska Ustijana Rechkoska , Veljanovski Dimitar , Risteski Filip A. 
Published: April 2018

The intensity-curvature measurement approaches (ICMAs) are re-sampling techniques. The intensity-curvature term is the product between the signal intensity and the classic-curvature and is the root concept at the foundation of the ICMAs. The concept offers six ICMAs: the classic-curvature (CC), the intensity-curvature functional (ICF), the signal resilient to interpolation (SRI), the resilient curvature (RC), the intensity-curvature term before interpolation (Eo(x, y)), and the intensity-curvature term after interpolation (EIN(x, y)). The ICMAs have the following properties. The CC and the ICF are mask images. The SRI is a filter. The RC is adept to invert, and simultaneously, to smooth and to magnify the grayscale of the image. The aforementioned properties are illustrated with two-dimensional theoretical images and with Magnetic Resonance Imaging (MRI) images of the human brain. The novelty of this work consists of the use of the Eo(x, y) and the EIN(x, y) in order to highlight human brain vessels identified with MRI. Journal of Institute of Science and Technology Volume 22, Issue 2, January 2018, Page: 19-31
Response of Soil Nematodes Under Different Pest Management Practices: A Field Experimental Approach in Tomato (Lycopersicon Esculentum L.) Growing Agro-Ecosystem
Authors: Gupta Dipak , Bhusal Daya Ram 
Published: April 2018

The need of eco-friendly pest management practice is important to maintain soil biodiversity and sustainable agriculture. Therefore rigorous investigation is needed for the environmentally friendly pest management techniques worldwide including Nepalese Tomato growing farms. We conducted field experiment to monitor the diversity and community structure of soil nematodes under different pest management practices in Tomato (Lycopersicon esculentum) growing farm. The study was conducted during summer and winter season in 2015 in Tokha area of Northern part of Kathmandu valley. The field was designed as Urine mixture plot (MP), Pesticides plot (PP), Botanicals plots (BP) and Control plot (CP). Our result indicated the variation of abundance and diversity of nemato-fauna with treatment plots and seasons. The generic diversity and community composition of nematodes in Urine mixture treating plots (MP) was increased significantly whereas decreased in pesticide applying plot (PP). The F/B ratio was significantly affected with treatment system rather than seasonality and found to be increased in pesticides applying plots. The abundance samples of nematodes genera were well separated in our discriminate ordination. We highlight the need of further exploration on the diversity and community dynamics of soil nematodes under different pest management practices in Tomato growing Nepalese agro-farms for sustainable soil ecosystem service. Journal of Institute of Science and Technology Volume 22, Issue 2, January 2018, Page: 45-55
Zero-Truncated Discrete Two-Parameter Poisson-Lindley Distribution with Applications
Authors: Shanker Rama , Shukla Kamlesh Kumar 
Published: April 2018

A zero-truncated discrete two-parameter Poisson-Lindley distribution (ZTDTPPLD), which includes zero-truncated Poisson-Lindley distribution (ZTPLD) as a particular case, has been introduced. The proposed distribution has been obtained by compounding size-biased Poisson distribution (SBPD) with a continuous distribution. Its raw moments and central moments have been given. The coefficients of variation, skewness, kurtosis, and index of dispersion have been obtained and their nature and behavior have been studied graphically. Maximum likelihood estimation (MLE) has been discussed for estimating its parameters. The goodness of fit of ZTDTPPLD has been discussed with some data sets and the fit shows satisfactory over zero – truncated Poisson distribution (ZTPD) and ZTPLD. Journal of Institute of Science and TechnologyVolume 22, Issue 2, January 2018, Page: 76-85
Analysis of Phytoconstituents and Biological Activities on The Selected Medicinal Plants of Dolakha and Sindhualchowk District of Nepal
Authors: Subba Bimala , Thapa Susila 
Published: April 2018

Phytochemical and biological activities of methanolic extract of seven plants viz. Scindapsus officinalis Schott. , Lepisorus loriformis, Nicotiana tabacum L., Clematis buchananiana DC., Astilbe rivularis D. Don, Potentilla fulgens Wall. ex Hook and Taxus wallichiana Zucc. were carried out. The brine shrimp bioassay showed that N. tabacum, A. rivularis, and P. fulgens were pharmacologically active. The antibacterial potential was studied against Staphylococcus aureus (gram positive bacteria) and Escherichia coli (gram negative bacteria) using Agar Well Diffusion Method. Roots of P. fulgens showed inhibition against gram positive bacteria while the rhizome of A. rivularis showed inhibition against both gram positive and gram negative bacteria. Antioxidant activity was evaluated by 2, 2-diphenyl-1-picryl hydrazyl (DPPH) free radical scavenging activity and ferric reducing antioxidant power FRAP assay. Both assays showed that P. fulgens has high antioxidant activities with (IC50 =15.57 ± 3.6) lower than standard ascorbic acid. Journal of Institute of Science and TechnologyVolume 22, Issue 2, January 2018, Page: 140-147
Oberflächenvorbehandlung vor dem Galvanisieren
Authors: Uhlmann Eckart , Jaczkowski Robert 
Published: April 2018

Kurzfassung
In diesem Beitrag wird die Eignung verschiedener Fertigungs- und Reinigungsverfahren als Vorbehandlungsverfahren vor dem Beschichten von Aluminiumwerkstücken aus AlMg3 sowie AlSi12 untersucht. Die Messung von Oberflächenkennwerten, insbesondere des Abrollwinkels α, erlaubte dabei eine Vorhersage über die Beschichtbarkeit der Werkstücke. Die Werkstücke wurden anschließend galvanisch beschichtet und die Schichthaftfestigkeit durch einen Gitterschnittversuch bestimmt.
Energieflexibilität im Maschinen- und Anlagenbau
Authors: Stoldt Johannes , Wolf Tom , Büttner Thomas , Schlegel Andreas , Langer Tino , Putz Matthias 
Published: April 2018

KurzfassungWollen Maschinen- und Anlagenbauunternehmen ihre Wettbewerbsfähigkeit erhalten, so sind sie gefordert, sich auf die Veränderungen im Zuge der Energiewende einzustellen. Dies umfasst vor allem die Synchronisation des Energiebedarfs ihrer Produktionsprozesse mit dem marktseitigen Energieangebot. Um insbesondere mittelständische Unternehmen dabei zu unterstützen, stellt der Beitrag ein Vorgehen und weitere Hilfsmittel (u. a. einen Maßnahmenkatalog) zur Identifikation, Bewertung und Auswahl geeigneter Maßnahmen vor.
Entwicklung einer Methode zur quantitativen, mehrdimensionalen Fabriklayoutplanung
Authors: Aurich Paul , Stonis Malte , Nyhuis Peter 
Published: April 2018

Kurzfassung
Die derzeitig genutzten Methoden zur Planung von Fabriklayouts sind hinsichtlich ihrer Bewertungsmethoden beschränkt. Die Fabrikbewertung erfolgt entweder qualitativ oder quantitativ, hierbei aber beschränkt auf wenige Zielgrößen. Diese Defizite wurden durch die Entwicklung einer Methode zur quantitativen, mehrdimensionalen Ad-hoc-Fabrikbewertung überwunden. Auf dieser Basis ist es nun möglich, eine Fabriklayoutplanungsmethode zu erarbeiten, die den Planungsaufwand reduziert und die Lösungsgüte deutlich erhöht.
Braunschweiger Shopfloor Management Assessment
Authors: Dombrowski Uwe , Wullbrandt Jonas , Jäger Fabian , Linge Sophia 
Published: April 2018

Kurzfassung
Ganzheitliche Produktionssysteme (GPS) sind heutzutage Stand der Technik in produzierenden Unternehmen. Mittlerweile etabliert sich neben den Lean-Methoden auch eine GPS-gerechte Führung – das Lean Leadership. Nachhaltiger Erfolg gelingt dabei vor allem durch Führung auf Shopfloor-Ebene und unter Einbeziehung von selbstständigen, zur Problemlösung befähigten Mitarbeitern – den wichtigsten Akteuren in einem Kontinuierlichen Verbesserungsprozess (KVP). Shopfloor Management (SFM) wird in vielen Unternehmen als zentrale Methode Ganzheitlicher Produktionssysteme praktiziert. Die Einführung der Methode sowie ihr Nutzen sind in der Literatur an vielen Stellen beschrieben, jedoch existiert bisher keine Systematik, um die Qualität des Shopfloor Managements zu bewerten. Insbesondere während der Implementierung der Methode kann die parallele Evaluierung Schwachstellen und Entwicklungsbedarfe aufzeigen und somit die nachhaltige Verankerung unterstützen. Dieser Beitrag stellt ein neuartiges Konzept zur qualitativen Erfolgsanalyse des Shopfloor Managements vor und zeigt die erfolgreiche Anwendung des Assessments anhand eines Praxisbeispiels.
Kollaboration und Interdisziplinarität: Die Triebfedern der Industrie 4.0
Authors: Ritter Armin , Sauer Olaf , Tschirner Christian 
Published: April 2018

Kurzfassung
Die Entwicklung einer durchgängigen digitalen Prozesskette setzt die Schaffung geeigneter Kollaborationsplattformen voraus, auf deren Basis der gesamte Zusammenarbeitsprozess virtualisiert wird. Daneben ist jedoch auch eine Veränderung des Arbeitsverhaltens hin zu einer agilen Zusammenarbeit notwendig, einschließlich des Aufbaus neuer Tools und Kompetenzen. Ein pragmatisches Change Management, das mit dem digitalen Kompetenzaufbau gekoppelt ist, ist dabei ein zentraler Erfolgsfaktor.
Optimized Segmentation of the 3D Microstructure in Cast Al-Si Piston Alloys
Authors: Bugelnig K. , Germann H. , Steffens T. , Plank B. , Wilde F. , Boller E. , Requena G. 
Published: April 2018

Abstract
The thermomechanical behavior of cast Al-Si piston alloys is highly dependent on the condition of the highly interconnected hybrid 3D network which is composed of primary and eutectic silicon and intermetallic phases which are found embedded in the α-Al matrix. The very similar X-ray absorption of silicon and the α-Al matrix is problematic for the local identification of these phases and thus for the accurate segmentation and characterization of all rigid phases in the network when laboratory X-ray tomographs are used. A combination of conventional X-ray computed tomography, synchrotron computed tomography, and chemical deep etching performed on the same alloy and at the same position allows for an automatic segmentation and a more accurate characterization of phases across large representative volumes and thus provides the information necessary for a quantification of the whole 3D microstructure of the alloys.
Choreographed Footfalls
Authors: Revely-Calder Cal 
Published: April 2018

In Samuel Beckett's play Footfalls, a woman called ‘May’ walks back and forth. In this essay, I suggest that the play's physical plainness may be its most difficult aspect: Footfalls is a prime example of how Beckett's later plays are more like enigmas than riddles, frustrating us without an eventual solution. As we try to describe and interpret May's motions, we're continually repelled, and denied the critical certainty we might want. But that desire may be the wrong one to have; instead, I would venture that the play's careful choreography is both the thing that's expressive, and the thing being expressed. Focusing on this choreographic metaphor, and drawing on dance practitioners and theorists from Lucia Ruprecht to Merce Cunningham, I suggest that Footfalls is about itself, which is to say that it's about ‘about-ness’ – how we search for words to describe motions that seem resistant to paraphrase.In the late 1970s, Beckett was certainly interested in dance. This wasn't evident only in the case of Billie Whitelaw and Footfalls. Directing Come and Go (as Kommen und Gehen) in 1978, Beckett wanted the performers’ shoes to be ‘genre ballerine’; writing Quad in 1980, he specified that ‘some ballet training’ on the performers’ part was ‘desirable’. I caution against misreading these plays as dances – they are not – but suggest that corporeal discipline was something with which Beckett became fixated. And this wasn't only a matter of stagecraft, as we can see by reading the late poetic sequence mirlitonnades, written in French between 1976 and 1980 – the period in which Beckett finished both Footfalls and its French sibling Pas. These poems are tightly linked to the plays alongside which they were written; the link, in David Wheatley's phrase, can be seen in their ‘harnessing of speech to carefully choreographed movement’. The mirlitonnades place a repeated emphasis upon their rhythms, and the ways in which they intimate physical movement without literally enacting it. This is so because, as Eric Griffiths puts it, ‘the reader must inform writing with a sense of the writer it calls up – an ideal body, a plausible voice’. In Beckett's later work, I suggest, he was attentive to how the conjunction of body and voice appeared, as much as how it meant – and he wanted to augment the difficulties that this poses for his critics’ task.
Multiple Gaps in the Disk of the Class I Protostar GY 91
Authors: Sheehan Patrick D. , Eisner Josh A. 
Published: April 2018

Abstract
We present the highest spatial resolution Atacama Large Millimeter/submillimeter Array (ALMA) observations to date of the Class I protostar GY 91 in the ρ Ophiuchus L1688 molecular cloud complex. Our 870 μm and 3 mm dust continuum maps show that the GY 91 disk has a radius of ∼80 au, and an inclination of ∼40°, but most interestingly that the disk has three dark lanes located at 10, 40, and 70 au. We model these features assuming they are gaps in the disk surface density profile and find that their widths are 7, 30, and 10 au. These gaps bear a striking resemblance to the gaps seen in the HL Tau disk, suggesting that there may be Saturn-mass planets hiding in the disk. To constrain the relative ages of GY 91 and HL Tau, we also model the disk and envelope of HL Tau and find that they are of similar ages, although GY 91 may be younger. Although snow lines and magnetic dead zones can also produce dark lanes, if planets are indeed carving these gaps then Saturn-mass planets must form within the first ∼0.5 Myr of the lifetime of protoplanetary disks.
Rotational Failure of Rubble-pile Bodies: Influences of Shear and Cohesive Strengths
Authors: Zhang Yun , Richardson Derek C. , Barnouin Olivier S. , Michel Patrick , Schwartz Stephen R. , Ballouz Ronald-Louis 
Published: April 2018

Abstract
The shear and cohesive strengths of a rubble-pile asteroid could influence the critical spin at which the body fails and its subsequent evolution. We present results using a soft-sphere discrete element method to explore the mechanical properties and dynamical behaviors of self-gravitating rubble piles experiencing increasing rotational centrifugal forces. A comprehensive contact model incorporating translational and rotational friction and van der Waals cohesive interactions is developed to simulate rubble-pile asteroids. It is observed that the critical spin depends strongly on both the frictional and cohesive forces between particles in contact; however, the failure behaviors only show dependence on the cohesive force. As cohesion increases, the deformation of the simulated body prior to disruption is diminished, the disruption process is more abrupt, and the component size of the fissioned material is increased. When the cohesive strength is high enough, the body can disaggregate into similar-size fragments, which could be a plausible mechanism to form asteroid pairs or active asteroids. The size distribution and velocity dispersion of the fragments in high-cohesion simulations show similarities to the disintegrating asteroid P/2013 R3, indicating that this asteroid may possess comparable cohesion in its structure and experience rotational fission in a similar manner. Additionally, we propose a method for estimating a rubble pile’s friction angle and bulk cohesion from spin-up numerical experiments, which provides the opportunity for making quantitative comparisons with continuum theory. The results show that the present technique has great potential for predicting the behaviors and estimating the material strengths of cohesive rubble-pile asteroids.
Hybrid Stars in the Light of GW170817
Authors: Nandi Rana , Char Prasanta 
Published: April 2018

Abstract
We have studied the effect of the tidal deformability constraint given by the binary neutron star merger event GW170817 on the equations of state (EOS) of hybrid stars. The EOS are constructed by matching the hadronic EOS described by the relativistic mean-field model and parameter sets NL3, TM1, and NL3ωρ with the quark matter EOS described by the modified MIT bag model, via a Gibbs construction. It is found that the tidal deformability constraints along with the lower bound on the maximum mass (M
max = 2.01 ± 0.04 M
⊙) significantly limits the bag model parameter space (

, a
4). We also obtain upper limits on the radius of 1.4 M
⊙ and 1.6 M
⊙ stars as R
1.4 ≤ 13.2–13.5 km and R
1.6 ≤ 13.2–13.4 km, respectively, for the different hadronic EOS considered here.