bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enhancement of Power Quality in Wind Based Distributed Generation System Using Adaptive Vectorial Filter
Authors: Arya Sabha Raj , Maurya Rakesh , Giri Ashutosh K 
Published: August 2018

Abstract
Voltage and frequency fluctuation under variable load or variable wind speed is the key issue to solve in distributed generation based on wind power. Further, harmonic and zero sequence current flow through the generator windings due to connection of nonlinear load deteriorate the power quality of the supply. In this paper a control algorithm known as adaptive vectorial filter (AVF) is developed for the solution of the aforesaid problems. This method lies in the category of frequency lock loop (FLL) rather than phase locked loop (PLL) and having no PI coefficient in the loop filter. Therefore it is easy to tune for that frequency component which is desired at output. The frequency locked loop extracts the frequency of the source voltage which is less affected by sudden changes in the system. Hence it is more suitable than the PLL based techniques in wind based distributed power generation system. The entire system is tested under different operating conditions using field-programmable gate array based controller with MATLAB interface in real time. The dynamic response and steady state response shown by it is found satisfactory.
Design of Cost Effective Solar PV Powered SRM Driven Agriculture Pump Using Modified Buck-Boost Converter
Authors: Mishra Anjanee Kumar , Singh Bhim 
Published: August 2018

Abstract
This paper proposes a new DC-DC converter for performance optimization of a solar PV(Photovoltaic) system without electrolytic capacitor for water pumping system driven by a switched reluctance motor (SRM). The proposed converter is able to replace the input electrolytic capacitor to polypropylene capacitor with small rating and size. The snubber circuit formed by storage capacitor across switch of converter is operated to minimize the voltage spikes especially during turn-on and turn-off time. The proposed DC-DC converter delivers a continuous supply to SRM drive with low ripple content and capable to step-up and step-down the input PV voltage. The PV power optimization and to limit the high initial winding currents of SRM, are two major functions of proposed converter. An improved perturb and observation (P&O) based maximum power point tracking (MPPT) control is also proposed in present system, which overcomes the deviation problem present in conventional P&O MPPT controls. Simulated and experimental results on a 500 W four-phase 8/6 SRM, are accomplished to authenticate the feasibility of proposed system under all environmental conditions.
Abstract-valued Orlicz spaces of range-varying type
Authors: Zhang Qinghua 
Published: August 2018

AbstractThis paper mainly deals with the abstract-valued Orlicz spaces of range-varying type. Using notions of Banach space net and continuous modular net etc., we give definitions ofLϱθ(⋅)(I,Xθ(⋅)) andL+ϱθ(⋅)$\begin{array}{} L_{+}^{\varrho_{\theta(\cdot)}} \end{array} $(I,Xθ(⋅)), and discuss their geometrical properties as well as the representation ofL+ϱθ(⋅)$\begin{array}{} L_{+}^{\varrho_{\theta(\cdot)}} \end{array} $(I,Xθ(⋅))*. We also investigate some functionals and operators onLϱθ(⋅)(I,Xθ(⋅)), giving expression for the subdifferential of the convex functional generated by another continuous modular net. After making some investigations on the Bochner-Sobolev spacesW1,ϱθ(⋅)(I,Xθ(⋅)) andWper1,ϱθ(⋅)$\begin{array}{} W_{\textrm{per}}^{1,\varrho_{\theta(\cdot)}} \end{array} $(I,Xθ(⋅)), and the intersection spaceWper1,ϱθ(⋅)$\begin{array}{} W_{\textrm{per}}^{1,\varrho_{\theta(\cdot)}} \end{array} $(I,Xθ(⋅)) ∩Lφϑ(⋅)(I,Vϑ(⋅)), a second order differential inclusion together with an anisotropic nonlinear elliptic equation with nonstandard growth are also taken into account.
Effects of chip pretreatment and feeding segments on specific energy and pulp quality in TMP production
Authors: Sandberg Christer , Nelsson Erik , Engberg Birgitta A. , Berg Jan-Erik , Engstrand Per 
Published: August 2018

Abstract
Increased wood softening and refining intensity have earlier been utilized to improve refining efficiency in mechanical pulping. We have evaluated a combination of increased softening by low dose sulphite chip pretreatment and increased intensity by feeding segment design in a TMP line for production of high quality printing papers.
Norway spruce wood chips were preheated, compressed in an Impressafiner and impregnated with water or sodium sulphite solutions (Na2SO3 charges 3.6 and 7.2 kg/t). Chips were refined in two parallel 68” double disc refiners using two different refining conditions: standard bidirectional segments at normal production rate (9 t/h) and feeding segments at increased production rate (11.1–12.1 t/h).
The feeding segments enabled a 30 % increase in production rate. Refining with feeding segments at 12.1 t/h production rate combined with chip pretreatment with 3.6 kg/t sodium sulphite reduced the specific energy 360 kWh/t (19 %) compared to refining with standard segments and no pretreatment. Pulp properties were similar for the two configurations. The combination of feeding segments and chip pretreatment with water reduced the specific energy 180 kWh/t (9 %). Implementation of most of the technology presented has reduced the electrical energy use for the mill by approximately 80 GWh/year.
Supramolecular association in the triclinic (Z′=1) and monoclinic (Z′=4) polymorphs of 4-(4-acetylphenyl)piperazin-1-ium 2-amino-4-nitrobenzoate
Authors: Jotani Mukesh M. , Wardell James L. , Tiekink Edward R.T. 
Published: August 2018

Abstract
Crystallography reveals two polymorphs for the salt [4-(4-acetylphenyl)piperazin-1-ium][2-amino-4-nitrobenzoate], a monoclinic form (2; modelled as P21/n with Z′=4) formed directly from the reaction mixture, and a triclinic form (1; Z′=1) isolated from recrystallisation. Relatively minor differences are noted in the conformations of the anions and of the cations, mainly relating to the twist of, respectively, the carboxylate groups and piperazin-1-ium rings with respect to the phenyl rings they are connected to. The key feature of the packing of both forms is the formation of charge-assisted ammonium-N–H···O (carboxylate) hydrogen bonds which lead to cyclic 12-membered {···HNH ···OCO}2 synthons in the case of 1 but, supramolecular chains in 2. The three-dimensional architecture in the crystal of 1 is further stabilised by amine-N–H···O (nitro) and amine-N–H···O (acetyl) hydrogen bonds, leading to double-layers in the bc-plane, which are linked along the a-axis by methylene-C–H···O (carboxylate) and π-stacking interactions. The combination of ammonium-N–H···O (carboxylate) and amine-N–H···O (carboxylate, acetyl) hydrogen bonds consolidate the three-dimensional packing in the crystal of 2. The greater crystal density, packing efficiency and calculated lattice energy for 1 compared with 2, suggest the former to be the thermodynamically most stable crystal. An analysis of the Hirshfeld surfaces for 1 and 2 reveal distinctive features that differentiate between the constituents of the two forms and between the ions comprising the asymmetric unit of 2.
Orthoamide und Iminiumsalze, XCIVa. Kondensationsreaktion von Orthoamiden von Alkincarbonsäuren mit 2-Methyl-5-phenacyl-1,3,4-thiadiazolen
Authors: Kantlehner Willi , Edelmann Kai , Frey Wolfgang 
Published: August 2018

Abstract
The ketene aminals 9a–e can be prepared from the orthoamide of propiolic acid 6a and 2-methyl-5-phenacyl-1,3,4-thiadiazoles 8a–e under mild conditions. The crystal structure analyses of 9b and 9d reveal that compounds 9 can be regarded as 1,4-dipoles (push-pull-substituted butadienes). Surprisingly, the analogous reactions of the orthoamides 6b,c with the thiadiazoles 8a–c give rise to the formation of 1,2-dihydro-pyridin-2-thiones 13a–j. The constitution of the compounds 13 was confirmed by crystal structure analyses of the compounds 13c,f,g,i.
Measurement of Temperature-Dependent Bound Water in Clays
Authors: Zymnis Despina M. , Whittle Andrew J. , Germaine John T. 
Published: August 2018

Abstract
Heating of clay under drained conditions results in thermal expansion of the soil minerals and pore water and can also cause a change in the soil fabric, producing irrecoverable deformations. These deformations are most pronounced for normally and lightly overconsolidated clays that undergo significant net compression and have been attributed to changes of the adsorbed or bound water layer with temperature. The current article quantifies the change in bound water content through laboratory measurements of temperature dependence in the specific gravity of solid particles while accounting for the thermal expansion of the soil constituents. The experiments compare changes for three representative clays of differing mineralogy at temperatures ranging from 20°C to 38°C. The laboratory experiments confirm that the specific gravity of clay decreases with temperature consistent with the conversion of bound water to free water, while accounting for the thermal expansion of the pore water. The density of oven-dried solid particles obtained from gas pycnometer measurements is also lower than the value obtained from typical water submersion methods because of the existence of the bound water layer. We interpret the experimental measurements assuming a mass density of bound water and an exponential decay of bound water content with temperature. Using these assumptions, we show that the thickness of the bound water layer decreases from 9 Å at 20°C to 6 Å at 40°C for three clays of widely differing mineralogy.
Soil–Water Characteristic Curve and Permeability Function of Recycled Concrete Aggregates Coated with Oil or Wax
Authors: Rahardjo Harianto , Prasad Arun , Krisnanto Sugeng , Leong Eng-Choon , Wang Chien Looi 
Published: August 2018

Abstract
Recycled concrete aggregate (RCA) is known to be a hydrophilic material. An attempt has been made to convert RCA into a hydrophobic material by coating it separately with oil or wax. Both oil and wax are known to increase the hydrophobicity of soil. Although the soil–water characteristic curve (SWCC) and permeability function of coarse-grained aggregates have been investigated, the effect of the introduction of hydrophobicity (coating it with oil or wax) into the coarse aggregates to their SWCC and permeability function has not been fully understood. The SWCC indicates that coating RCA with oil or wax modifies the drying and wetting curves as compared with RCA without any coating. The air-entry values and water-entry values are also modified upon coating. RCAs coated with oil or wax were found to prevent ingress of water during the wetting test for SWCC. The permeability function of RCAs is also modified.
Effect of Experimental Variables on Nanomechanical Properties of PEK-C via AFM Indentation
Authors: Yao Jiawei , Liu Mengyao , Niu Yifan 
Published: August 2018

AbstractIn order to investigate the effects of the experimental variables of nanoindentation measurements on the nanomechanical properties of PEK-C, a wide range of indentation conditions, including peak force, loading velocity, and unloading velocity, were employed for PEK-C under different preparation conditions by the atomic force microscope based nanoindentation technique. The test results indicate that both the elastic modulus and hardness values decrease with the peak force increasing. The elastic modulus increases as the loading velocity increases. However, increasing unloading velocity leads to the decrease of the elastic modulus. The hardness exhibits a decrease with the loading velocity increasing and appears unloading velocity independent. What is more, the dispersion augments with the loading and unloading velocity increasing.
Full Disclosure
Authors: Simmons K. Merinda 
Published: August 2018

This brief essay follows up on responses by Leslie Dorrough Smith and Matt K. Sheedy to Changing the Subject: Writing Women across the African Diaspora. In it, I revisit the issue of authorship and some of the processes of disclosure that lie therein, a question approached in various ways by Sheedy (more directly) and Dorrough Smith (more broadly/thematically).
Diagnosis and education for a better future in Uganda
Authors: Kopitsis Natasha 
Published: August 2018

Abstract
Since 2005, the Novo Nordisk Haemophilia Foundation (NNHF; www.nnhf.org) has worked in collaboration with local partners and internationally renowned experts to improve access to haemophilia care. The NNHF has identified three areas on which to focus its activities in order to create impact where it is most needed: capacity building, diagnosis and registry, and education and empowerment. Underpinning these focus areas are targeted awareness creation activities and the development of strategic partnerships, which enable and facilitate local impact creation through empowered community advocates and authority engagement. NNHF supports fellowships, local development projects, and recognises extraordinary achievements via the annual ‘NNHF Project of the Year Award’ and the ‘NNHF Community Award’. Raising awareness of haemophilia in Uganda was the NNHF global fundraiser in 2015. This article summarises how the donations raised were used to establish diagnosis and education for a better future for Uganda’s haemophilia patients.
Gingival bleeding and oral hygiene in women with von Willebrand Disease (VWD): a pilot study
Authors: Vanduine Stefanie , Ridley Karen , Bashutski Jill , Snyder Mark , Powell Corey , Taichman Susan 
Published: August 2018

Abstract
Introduction: Von Willebrand disease (VWD) is the most common hereditary coagulation abnormality. Individuals with VWD experience increased mucosal bleeding as well as gingival bleeding. Some evidence suggests that gingival bleeding is related to poor oral hygiene for fear of plaque removal methods that may cause bleeding to the gingival tissue. No studies have shown a correlation between VWD and gingival bleeding; however, these studies have not adjusted for possible confounding factors, such as presence of dental plaque, dental care utilisation, and oral hygiene habits. Aims: To determine the relationship between von Willebrand factor (VWF) levels and the amount of gingival bleeding, when controlling for possible confounding variables. Methods: This multi-site study included 44 women with VWD who completed a questionnaire to evaluate demographics, oral hygiene habits, perception of own oral health, oral health quality of life, and dental care utilisation. Clinical dental examinations were conducted to determine the presence of plaque and gingival bleeding on six teeth in each individual. Von Willebrand disease type and severity were determined through a medical chart review. Institutional review board (IRB) approval was obtained prior to data collection. Results: Paired sample t-tests revealed that VWF levels did not significantly affect the amount of gingival bleeding noted (p>0.05) when controlling for presence of plaque. Multiple linear regression models revealed that other factors, such as age and last dental visit (p=0.044), had a larger effect on the amount of gingival bleeding. Conclusion: In women with VWD, the presence of plaque and dental care utilisation determines gingival bleeding more than the severity of VWD.
US haemophilia centre nurses and advanced practice providers: Demographics, roles/responsibilities, training, educational barriers and employment benefits
Authors: Witkop Michelle L. , Guelcher Christine , Hall Margaret , Maahs Jennifer 
Published: August 2018

Abstract
Introduction: As the focus on personalised treatment is refined, more products are brought to market and the life expectancy of persons with haemophilia increases, there will be an expanded need of experienced and expert healthcare providers to ensure optimal patient outcomes. Aim: This survey describes the demographics, roles/ responsibilities, practice patterns, educational opportunities/barriers and employment benefits of nurses and advanced practices providers (APPs), including advanced practice registered nurses (APRNs) and physician assistants (PAs) employed by haemophilia treatment centres (HTCs) across the United States. Methods: This one-time convenience online survey was approved by the Munson Medical Center Institutional Review Board. A survey of this type had never been attempted in the HTC nursing community; therefore. there was no opportunity to utilise a previous tool. Data was analysed using statistical tools through SurveyMonkey. Results: Gaps were identified in provider age distribution, research opportunities, and standardised educational opportunities for APPs. An aging but highly educated HTC nursing population is revealed: over 50% of respondents were over the age of 50; the majority held at least a baccalaureate degree and almost half had national board certification; most were experienced in healthcare but newer to the field of bleeding disorders. Conclusion: Development of an APP fellowship program would standardise the care and treatment of those with bleeding and clotting disorders across the United States. This fellowship should include a didactic portion, advocacy within the community, mentorship with experienced APPs and regular webinar-based case studies to review current trends in care. This survey is a call to action to begin standardised education programs for the advanced practice role.
Perceived confidence for injury self‑management increases for young men with mild haemophilia with the use of the mobile app HIRT?
Authors: Nilson Joann , Mulder Kathy , Schachter Candice L. , Wittmeier Kristy , Lomotey Richard , Arnold Catherine M. , Oosman Sarah 
Published: August 2018

Abstract
Background: Young men with mild haemophilia have unique challenges pertaining to bleed management. They may not always identify musculoskeletal injury requiring medical attention as they do not bleed frequently, potentially resulting in significant health consequences. In response to these challenges, a team of clinicians, researchers and young men with mild haemophilia developed a self-assessment pathway which was converted into a mobile app. Aim: This study examined the influence of the mobile app, HIRT? (Hemophilia Injury Recognition Tool) on perceived injury self-management in young men with mild haemophilia in Canada. Methods: We used a mixed methods design. The quantitative data, through a self-report questionnaire, evaluated perceived injury self-management strategies and participant confidence levels. Non-parametric Wilcoxon signed-rank test and McNemar chi-square test were used to determine association between perceived self-management strategies when using and not using the app, with significant levels set at p<0.05. Qualitative data was created using interpretive description and inductive content analysis of recorded and transcribed interviews. Results: 12 young men, aged 18-35 years, participated. Perceived confidence levels significantly increased (p=0.004) with the use of the app. Five qualitative themes were identified: accessibility, credibility, the benefit of alarms, confidence and usefulness. Conclusion: This study provides promising evidence to support the feasibility and use of HIRT? as an injury self-management tool for young men with mild haemophilia. Future research should prospectively investigate the effect of the app on injury selfmanagement confidence.
Сорбция ионов меди активированным углём марки БАУ-А
Authors: Linnikov O. D. , Rodina I. V. , Baklanova I. V. , Suntsov A. Y. 
Published: August 2018

Показана возможность использования активированного угля марки БАУ-А в целях очистки загрязненных растворов от ионов двухвалентной меди. Установлено, что сорбция ионов данного металла протекает по механизму физической адсорбции, описываемой уравнением Ленгмюра. Определены параметры этого уравнения при разных значениях рН модельного раствора.
Сопоставление ИК и КР спектров БАУ-А и другого угольного сорбента МИУ-С показало, что различия в их сорбционных свойствах по отношению к ионам меди во многом обусловлены отличиями в свойствах их поверхностей, а также структуре.
Das vicissitudes da fala da criança e de sua investigação
Authors: Lemos Cláudia Thereza Guimarães 
Published: August 2018

Respondo ao convite de Eni Orlandi para dizer da Psicolingüística ou de seu lugar na “História das Idéias Lingüísticas, particularmente no Brasil”, neste volume por ela organizado, com o texto que se segue e, a começar, pelo titulo que o anuncia. Nele o que se lê não é nem Psicolingüística nem Aquisição de Linguagem, mas “fala da criança”. Nele o que se lê, ao invés de “desenvolvimento lingüístico”, é “vicissitudes”, termo que significa o que é próprio da “vez” (do latim, vicis), do que, no tempo, toma seu lugar, nele sucedendo seja sob a forma de revezamentos seja sob a dos reveses, referidos aqui tanto às mudanças que a fala da criança pode mostrar quanto às mudanças de posição do investigador ao discerni-las.
Dispositivo electrónico para la medición de fuerza en falanges distales
Authors: Pinzón-Ospina Omar Alexander , Flórez-Díaz Diego Francisco , Camargo-Casallas Luz Helena 
Published: August 2018

El adormecimiento y debilidad en las manos son padecimientos perjudiciales para la salud que son tratados por especialistas en esta área. La medición de cambios en la fuerza constituye información importante para asistir terapias de rehabilitación. En este trabajo se diseñó un dispositivo electrónico que mide simultáneamente la fuerza de las cinco falanges distales de la mano, para ser empleado como apoyo en fisioterapia. Para ello se utilizaron sensores resistivos de fuerza, se diseñó una interfaz de visualización y un teclado táctil capacitivo. Se obtuvo un dispositivo que permite medir la fuerza ejercida por las cinco falanges distales de manera simultánea o selectiva en uno o más dedos de la mano, en tiempo real de acuerdo con el interés del especialista y proporciona para cada falange de la mano tres indicadores de desempeño: la fuerza promedio, la fuerza máxima y el déficit a partir del test de prensión mantenida.
TEORIA E PRÁTICA NO CURSO DE PEDAGOGIA
Authors: Sonneville Jacques Jules 
Published: August 2018

Em seus aspectos teoricos, a questão da relação entre teoria e prática, no curso de pedagogia, já foi amplamente estudada. É um tema central nas propostas curriculares, cujos pressupostos teóricos, em resumo, rejeitam categoricamente a visão dicotômica, em todas as suas formas (dissociativa, associativa ou positivo-tecnológica), e afirmam a unidade indissolúvel entre os dois polos distintos e interdependentes, caracterizada por uma relação simultãnea e recipróca, e assentada sobre as seguintes premissas: 1) a teoria tem na prática, ao memsmo tempo, sua fonte e sua meta; 2) por sua vez, a prática deve ser enendida como uma atividade consciente e transformadora da realidade social. Destemodo, teoria e prática são dois componentes da "práxis", entendida como "atividade teoríco-prática, ou seja, tem um lado ideal, teorico, e um lado material, propriamente prático, com a particularidade de que só artificialmente, por um processo de abstração, podemos separar, isolar um do outro".