bluuebunny/crossref_metadata_2025_split huggingface dataset:
Event‐triggered PCS Based Trajectory Tracking Control of Systems with Perturbation
Authors: Song Chengcheng , Wang Haoping , Tian Yang , Christov Nicolai 
Published: February 2017

AbstractThis paper is aimed at reducing network load for saving bandwidth by designing appropriate trigger signals that decide when the transmission should be done. An event‐triggered piecewise continuous systems (PCS) based control for time‐varying trajectory tracking is proposed. By designing the sensor system and controller system, the communication between them is reduced while still retaining a satisfactory closed‐loop behavior of the whole system. The major idea behind a designed sensor system is the use of a Luenberger observer and planning of event‐triggered mechanism (ETM). The main principle behind the designed controller system is the proposal of a new event‐triggered PCS based controller. The development is motivated by consideration of variable network induced time delays. Tracking error is proved to be norm‐bounded in both the original and developed case. Finally, to show the proposed method's performance, we present the simulation results for a mobile cart.
Modellierung und Optimierung von Mischgebieten
Authors: Schiefelbein Jan , Javadi Amir , Fuchs Marcus , Müller Dirk , Monti Antonello , Diekerhof Michael 
Published: February 2017

AbstractDieser Artikel befasst sich mit der Erstellung eines Planungshilfsmittels für Mischquartiere im Kontext des Projekts „EnEff:Stadt – Bottrop, Welheimer Mark”. Bei der Welheimer Mark handelt es sich um ein Mischgebiet innerhalb der InnovationCity Ruhr in Bottrop. Ziel war die energetische Optimierung des Quartiers zur Reduktion von Treibhausgasemissionen. Hierfür wurden Methoden zur Modellierung von komplexen Quartieren entwickelt und auf die Welheimer Mark angewandt. Simulierte thermische und elektrische Bedarfswerte einer Wohnsiedlung wichen um 6,4 % von den Verbrauchswerten ab. Während für die elektrische Profilgenerierung von Nichtwohngebäuden kein hinreichendes, vereinfachtes Verfahren identifiziert wurde, wies die Methodik zur Erzeugung thermischer Lastprofile eine gute Übereinstimmung zwischen generierten und gemessenen Profilen auf. Aus einer Optimierung gingen Vorschläge für eine verbesserte Energieanlagenverteilung hervor. Bei moderaten Kostensteigerungen von 6 % bis 11 % wäre eine Reduktion von CO2‐Emissionen um bis zu 50 % in bestimmten Bereichen der Welheimer Mark möglich.
Chemical Variability and Biological Activities of Brassica rapa var. rapifera Parts Essential Oils Depending on Geographic Variation and Extraction Technique
Authors: Saka Boualem , Djouahri Abderrahmane , Djerrad Zineb , Terfi Souhila , Aberrane Sihem , Sabaou Nasserdine , Baaliouamer Aoumeur , Boudarene Lynda 
Published: February 2017

In the present work, the Brassica rapa var. rapifera parts essential oils and their antioxidant and antimicrobial activities were investigated for the first time depending on geographic origin and extraction technique. Gas‐chromatography (GC) and GC/mass spectrometry (MS) analyses showed several constituents, including alcohols, aldehydes, esters, ketones, norisoprenoids, terpenic, nitrogen and sulphur compounds, totalizing 38 and 41 compounds in leaves and root essential oils, respectively. Nitrogen compounds were the main volatiles in leaves essential oils and sulphur compounds were the main volatiles in root essential oils. Qualitative and quantitative differences were found among B. rapa var. rapifera parts essential oils collected from different locations and extracted by hydrodistillation and microwave‐assisted hydrodistillation techniques. Furthermore, our findings showed a high variability for both antioxidant and antimicrobial activities. The highlighted variability reflects the high impact of plant part, geographic variation and extraction technique on chemical composition and biological activities, which led to conclude that we should select essential oils to be investigated carefully depending on these factors, in order to isolate the bioactive components or to have the best quality of essential oil in terms of biological activities and preventive effects in food.
Investigating Validity Evidence for the ETS® Proficiency Profile
Authors: Roohr Katrina Crotts , Liu Ou Lydia , Liu Huili 
Published: February 2017

AbstractThe ETS® Proficiency Profile (EPP), a college‐level assessment, has been widely used to evaluate general education student learning outcomes (SLOs) in college. The purpose of this study was to investigate validity evidence for the EPP by evaluating the relationship with outcomes such as student retention, cumulative grade point average (GPA), and degree attainment, and by investigating differential validity across subgroups and cross‐sectional learning gains. Three main conclusions were drawn from this study: (a) Students made significant learning gains from freshman to senior year using EPP scores; (b) freshman scores showed modest relationships with cumulative GPA at various points in college and senior scores showed strong relations with final‐year cumulative GPA; and (c) differential validity was found across gender, race, and college major when looking at the relationship between EPP scores and first‐year and sophomore GPA. Implications of these results are discussed.
Performance of Non‐Destructive Compressive Seals for Reversible Solid Oxide Cells
Authors: Aicart J. , Kuhn J. , Kesler O. 
Published: February 2017

AbstractContrary to hardened glass ceramics, compressive non‐destructive seals for solid oxide cells (SOCs) could enable stack repairs without utilizing destructive separation methods. In light of increasing interest for high temperature steam electrolysis and energy storage, the performances of two commercially available compressive materials were investigated in humidified gas conditions: Thermiculite‐866 and AFS‐170 alumina felts. Mass loss and thermogravimetric (TGA) experiments carried out in inert, oxidizing, and reducing atmospheres at 800 °C showed no influence of the atmosphere on the alumina felts, and a reversible redox behavior for Thermiculite‐866. Thermiculite‐866 showed better cyclability compared to AFS‐170 during SOC thermal cycling experiments. Initial open circuit voltages in dry H2 were measured and compared to those obtained with commercial mica seals. The highest were recorded with Thermiculite‐866, followed by mica and AFS‐170. The species outgassed by Thermiculite‐866 were quantified, and fluorine was found to be the main component released at 800 °C.
Highly thermostable and crystalline poly(butylene adipate) bionanocomposites prepared by in situ polycondensation with organically modified Moroccan beidellite clay
Authors: Ilsouk Mohamed , Raihane Mustapha , Castelvetro Valter , Lahcini Mohammed , Bronco Simona , Rhouta Benaissa , Bianchi Sabrina , Conzatti Lucia 
Published: February 2017

AbstractBionancomposites from bioplastics and nanoclays are of great interest for packaging, agricultural and other large‐volume and niche applications due to their enhanced physical, thermal, mechanical and processing characteristics compared to the parent polymer. In this study, the biodegradable polyester poly(butylene adipate) (PBA) was synthesized by in situ polycondensation catalysed by titanium tetrabutoxide in the presence of the natural Moroccan clay beidellite (BDT). Optimization of the nanoclay exfoliation in the bionanocomposite was achieved by cation exchange of BDT with cetyltrimethylammonium bromide (CTA) and by selecting the most effective among a range of organically modified xCTA‐BDT (x = CTA/BDT equivalent feed ratio). Fourier transform infrared and 1H NMR spectral and size exclusion chromatographic analyses confirmed the effectiveness of the in situ polymerization, yielding structurally regular PBA with narrow molecular weight dispersity and 7750 < < 30 360 g mol−1, depending on the organoclay load. X‐ray diffraction and transmission electron microscopy analyses showed best clay dispersion and homogeneous distribution at 2 wt% 3CTA‐BDT. From thermogravimetric analysis and differential scanning calorimetry results the thermal stability of PBA is greatly improved even at 1 wt% 3CTA‐BDT, its glass transition temperature is nearly unaffected while crystallinity is increased by the organoclay nucleating action. These results, along with a bionanocomposite hydrophilicity only moderately higher than that of PBA, make this preparation approach particularly promising. © 2017 Society of Chemical Industry
Process development of starch hydrolysis using mixing characteristics of Taylor vortices
Authors: Masuda Hayato , Horie Takafumi , Hubacz Robert , Ohmura Naoto , Shimoyamada Makoto 
Published: February 2017

Abstract
In food industries, enzymatic starch hydrolysis is an important process that consists of two steps: gelatinization and saccharification. One of the major difficulties in designing the starch hydrolysis process is the sharp change in its rheological properties. In this study, Taylor–Couette flow reactor was applied to continuous starch hydrolysis process. The concentration of reducing sugar produced via enzymatic hydrolysis was evaluated by varying operational variables: rotational speed of the inner cylinder, axial velocity (reaction time), amount of enzyme, and initial starch content in the slurry. When Taylor vortices were formed in the annular space, efficient hydrolysis occurred because Taylor vortices improved the mixing of gelatinized starch with enzyme. Furthermore, a modified inner cylinder was proposed, and its mixing performance was numerically investigated. The modified inner cylinder showed higher potential for enhanced mixing of gelatinized starch and the enzyme than the conventional cylinder.
Differential Distribution of Mouse Mammary Tumor Virus-Related Sequences in the DNA’s of Rats2
Authors: Drohan W. , Schlom J. 
Published: February 2017

Abstract
Radioactively labeled mouse mammary tumor virus (MuMTV) 60-70S RNA, obtained from virions grown In both murine and feline cells, was employed In molecular hybridization experiments to detect MuMTV-related sequences In the DNA’s of rats (Rattus norveglcus). With the use of relaxed conditions of hybridization and assay for RNA-DNA duplexes, all strains of laboratory rats and feral rats examined were shown to possess endogenous MuMTV-related DNA sequences In the low repetitive range. These sequences were related to approximately 20% of the MuMTV genome and exhibited a melting temperature (Tm) approximately 5° C lower than MuMTV-specific proviral sequences In murine (Mus musculus) DNA’s. Certain colonies of the F344 strain of rat (Fischer) contained animals whose DNA’s possessed additional MuMTV-related sequences. These sequences were related to the non-germ-line-transmitted, tumorassociated (TA) sequences of the highly oncogenic MuMTV (C3H). They were found In the DNA of some F344 rats and a cloned established F344 rat embryo cell line at a frequency of approximately one copy per haploid genome and exhibited a Tm 9° C lower than that of hybrid duplexes formed between radioactive MuMTV TA-sequence RNA and C3H mouse mammary tumor DNA. The DNA’s of rats, therefore, contained two sets of sequences that were related to sequences of the MuMTV genome: One set was germ-line transmitted, whereas the other set appeared to be transmitted in some rats via a non-germ line or infectious process.
Tectonothermal Evolution of the Middle Crust in the Trans-Hudson Orogen, Baffin Island, Canada: Evidence from Petrology and Monazite Geochronology of Sillimanite-bearing Migmatites
Authors: Skipton D. R. , St-Onge M. R. , Schneider D. A. , McFarlane C. R. M. 
Published: February 2017

Abstract
Hall Peninsula, on SE Baffin Island, Canada, exposes a lithologically diverse mid-crustal section of the Paleoproterozoic Trans-Hudson Orogen, which features Paleoproterozoic supracrustal strata overlying Archean crystalline basement. Recent mapping, combined with petrological studies and U–Pb monazite dating, provides new insights into the tectonothermal history of the internal zone of the orogen, as well as mid-crustal orogenic processes in general. Peak metamorphic grade is constrained to progressively increase westward from mid-amphibolite- to granulite-facies conditions and three regional deformation events are recognized: east-directed thin-skinned crustal shortening (D 1 ); east-vergent, thick-skinned thrusting and folding (D 2 ); late-orogenic, north–south-directed, thick-skinned folding (D 3 ). Equilibrium phase diagram modeling constrained by garnet compositional transects in pelite indicates peak mid-amphibolite-facies conditions on the eastern peninsula of ∼720–740°C and 6·25–7·25 kbar, followed by cooling and late muscovite growth. In accordance with field evidence for extensive biotite dehydration melting, peak metamorphic conditions of granulite-facies pelite on the western peninsula are estimated at ∼810–890°C and ∼6·1–7·35 kbar. In situ U–Pb monazite geochronology (laser ablation inductively coupled plasma mass spectrometry) constrains the timing of peak metamorphism and concurrent D 1 deformation throughout the peninsula to between c. 1850 and 1825 Ma, coincident with the accretion of crustal blocks and arc terranes during the amalgamation of the orogenic upper plate. A younger population of c. 1800 Ma monazite implies fluid-assisted dissolution–reprecipitation of older monazite, possibly related to the terminal collision of the amalgamated upper plate Churchill domain with the lower plate Superior craton. Combined with published observations, the integrated geochronological and petrological data suggest that the crustal section exposed on Hall Peninsula remained at elevated temperatures (&gt;550°C) for ∼100 Myr after the thermal peak. Despite significant crustal thickening and sustained high temperatures, which are comparable with those of large, hot orogens, the crustal section records no evidence of mid-crustal ductile (channel) flow or rapid exhumation during orogenic collapse.
Hypercholesterolaemia screening in Type 1 diabetes: a difference of opinion
Authors: Candler T. , Mahmoud O. , Edge J. , Hamilton‐Shield J. 
Published: February 2017

AbstractAimTo assess cholesterol screening of children with Type 1 diabetes by diabetes professionals using a survey of current practice, given that National Institute of Health and Care Excellence guidelines on childhood Type 1 diabetes do not recommend cholesterol screening, yet the National Paediatric Diabetes Audit has an annual cholesterol measure (> 12 years) as a key outcome indicator.MethodsAn online survey was sent to 280 members of the Association of Children's Diabetes Clinicians to assess cholesterol screening practice in children.ResultsA total of 87 diabetes professionals (31%) responded. The results showed that 94% of respondents measured cholesterol, 33% did this annually on all children, and 7% measured fasting cholesterol. A total of 63% used no guidelines to decide treatment or further investigation. The definition of ‘high’ cholesterol varied from > 4.5 to > 8 mmol/l, with 40% giving no response or specific level. Only 14% of clinicians had started statin therapy in their diabetes clinic in the previous 5 years.ConclusionWhilst the majority of diabetes professionals measured cholesterol in children with Type 1 diabetes, there was marked variability in sampling, in children screened and in action taken if levels were considered abnormal. It is debatable whether cholesterol measures should be undertaken, certainly more than once, and whether cholesterol level should feature as a key outcome in the national audit in future.
Synthesis and luminescence study of Zn3V2O8: Bi3+ yellow phosphor for solar spectral conversion
Authors: Zhang Xinguo , Guan Anxiang , Zhou Liya , Gong Menglian 
Published: February 2017

AbstractA yellow phosphor Zn3V2O8: Bi3+ was synthesized by solid‐state method. It can efficiently absorb UV photons of 250‐400 nm, and convert into strong yellow emission with maximum at 550 nm, which can be absorbed by dye‐sensitized solar cells (DSSCs). VO4→Bi3+ energy transfer is discussed. The critical Bi3+ concentration is 0.04 with critical distance of 13.25 Å. The CIE coordinates of Zn3V2O8: Bi3+ are (0.421, 0.518). Zn3V2O8: Bi3+ phosphor exhibits good thermal stability with T1/2=150°C. The results indicate that Zn3V2O8: Bi3+ phosphor is a promising UV‐absorbing spectral converter to enhance power conversion efficiency and photochemical stability of DSSCs.
Investigating How to Align Schools' Marketing Environments With Federal Standards for Competitive Foods
Authors: Polacsek Michele , O'Brien Liam M. , Pratt Elizabeth , Whatley‐Blum Janet , Adler Sabrina 
Published: February 2017

ABSTRACTBACKGROUNDLimiting food and beverage marketing to children is a promising approach to influence children's nutrition behavior. School‐based marketing influences nutrition behavior and studies have consistently found marketing for nonnutritious foods and beverages in schools. No studies have examined the resources necessary to align school marketing environments with federal school nutrition standards. The purpose of this study was to determine how to improve school marketing environments so that they align with new federal competitive food nutrition standards.METHODSWe assessed food marketing environments in 3 Portland, Maine schools using the Food and Beverage Marketing Survey (FBMS) and provided technical assistance to bring their marketing environments into conformity with the federal competitive food regulations, tracking resources and strategies for marketing removal.RESULTSNoncompliant marketing was significantly reduced pre‐ to postintervention. Intervention strategies were facilitated by the School Health Coordinator and school‐based wellness teams.CONCLUSIONSLow monetary resources were required to remove marketing not compliant with federal nutrition standards for foods sold in schools. Several key challenges remain to sustain efforts. This study provides timely information for policymakers to support crafting policies that address the realities of school nutrition environments and universal enforcement challenges.
The Computation of Some Properties of Additive and Multiplicative Groups of Integers Modulo n Using C++ Programming
Authors: Mohd Ali Nor Muhainiah , Noor Azhuan Nur Azura , Sarmin Nor Haniza , Johar Farhana 
Published: February 2017

This research is focused on two types of finite abelian groups which are the group of integers under addition modulo , and the group of integers under multiplication modulo , where is any positive integer at most 200. The computations of some properties of the group including the order of the group, the order and inverse of each element, the cyclic subgroups, the generators of the group, and the lattice diagrams get more complicated and time consuming as n increases. Therefore, a special program is needed in the computation of these properties. Thus in this research, a program has been developed by using Microsoft Visual C++ Programming. This program enables the user to enter any positive integer at most 200 to generate answers for the properties of the groups.
What Role Does Continuance Commitment Play In The Relationship Between Affective Commitment And Organizational Citizenship Behaviour? Case Study Somali Telecommunication Industry Players
Authors: Osman Osman H. , Sarip Azlineer , Mohd Arif Lily Suriani 
Published: February 2017

The purpose of the study is to investigate the role of continuance commitment in the relationship between affective commitment and organizational citizenship behaviour (OCB) among the employees of telecommunication industry players in Mogadishu, Somalia. A total of 92 lower managers (supervisors) from three different telecommunication players were involved in this study. The instrument used in the study for affective and continuance commitment was adopted from Natalie J. Allen and John P. Meyer (1990), and for OCB was adopted from Philip M. Podsakoff , Scott B. MacKenzie, Robert H. Moorman, and Richard Fetter (1990). This quantitative survey method employed stratified random sampling technique. Employees’ attitudes and behaviours were tested for correlation and regression analysis. The findings indicated that there are positive and significant relationship between employees’ affective commitment, continuance commitment and OCB. The highest correlations towards employees’ citizenship behaviour is the mediation role of continuance commitment (r=.362, p< .05), then affective commitment (r=.287, p< .05), followed by the relationship between affective commitment and continuance commitment (r=.249, p< .05), whilst continuance commitment shows the weakest relationship on OCB (r=.144, p< .05). The regression model indicates a predictive significance by employees’ behaviours; thus, the findings support the conclusion that the selected behaviours are predictors of telecommunication industries employees’ OCB. This study revealed the importances of organizational citizenship behaviour (OCB), affective commitment and continuance commitment among the telecommunication industries employees’in Mogadishu, Somalia. These findings also have implications for telecommunication industries and managers to reflect and extend employees’ organizational citizenship behavior (OCB).
Interactions between climate and landscape drive Holocene ecological change in a High Arctic lake on Somerset Island, Nunavut, Canada
Authors: Paull Tara M. , Finkelstein Sarah A. , Gajewski Konrad 
Published: February 2017

This study presents a diatom-based analysis of the post-glacial Holocene environmental history at Lake RS29 on Somerset Island in the Canadian High Arctic. Earliest post-glacial diatom assemblages (10 200–10 000 cal yr BP) consisted mainly of small, benthic fragilarioid taxa. Poor diatom preservation in the early Holocene (~10 000–6200 cal yr BP) is associated with warm conditions, as determined by pollen data from the same core and other paleoclimate estimates from the region. Analysis of this and other sites from across the Canadian Arctic suggest that zones of poor diatom preservation or diatom absence in lake sediment records may be associated with warm conditions. After 6200 cal yr BP, acidophilic assemblages consisting of Aulacoseira spp. and a suite of periphytic taxa indicate acidification since the mid-Holocene. During this time period, cooling causing changes in lake ice phenology was likely a major driver of the reconstructed mid-Holocene pH decline. Watershed processes, including reduced fluxes of base cations as the rate of sediment accumulation slowed, may also be contributors to long-term shifts in lake water pH and associated changes in diatom assemblages. The uppermost sediments in the Lake RS29 record were characterized by abrupt declines in Aulacoseira alpigena and increases in benthic diatom taxa Cyclotella sensu lato, suggesting an increase in lake water pH and longer ice-free seasons.