bluuebunny/crossref_metadata_2025 huggingface dataset:
Disaster Emergency Response Plan of the Royal Thai Embassy in Tokyo, Japan: A Review
Authors: Thamarux Patcharavadee , Suppasri Anawat , Leelawat Natt , Matsuoka Masashi , Imamura Fumihiko ,   Department of Architecture and Building Engineering, School of Environment and Society, Tokyo Institute of Technology 4259-G3-2 Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8502, Japan,   Survey Division, Department of Survey, Electricity Generating Authority of Thailand, Nonthaburi, Thailand,   International Research Institute of Disaster Science (IRIDeS), Tohoku University, Miyagi, Japan,   Disaster and Risk Management Information Systems Research Group/Department of Industrial Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
Published: September 2019

Compared to other countries, Thailand has fewer seismic hazards. Hazardous experiences greatly influence the expertise and abilities of actors that implement and execute public disaster responses. In domestic disaster situations, there are protocols and resources that facilitate a national disaster response. However, in overseas responses, disaster response becomes more challenging as more responsibilities with limited authorities and resources are required. In this research, the public disaster response of the Royal Thai Embassy in Tokyo was explored and evaluated on the basis of several disaster scenarios. This research was developed to understand the state of disaster response, enhance the effectiveness of disaster response protocols, and reduce unnecessary resource consumption. This study intended to fulfill organizational needs and responsibilities. The study converts existing protocol that is written in document form into a time series disaster response plan for disaster drills based on a possible worst-case scenario, i.e., the Kumamoto Earthquake scenario in 2016 and the Great Tohoku Earthquake and Tsunami in 2011. The plan was used in a disaster drill to evaluate organizational responses. The results from drills and discussions and comments from participant information flow primarily manage communications, cooperation, and connections, which are dependent on experiences and expertise in disaster management. This further affects information flow management and assistance capabilities. The outputs and outcomes from this research can be used as a guideline for application to other embassies in Japan, the Royal Thai Embassy in other countries, and general overseas organizations. This work may apply to other public disaster responses aside from natural disasters.
Time Variation in the Chemical and Isotopic Composition of Volcanic Gas at Mt. Mihara of Izu-Oshima Island, Japan
Authors: Ohba Takeshi , Yaguchi Muga , Nishino Kana , Numanami Nozomi ,   Department of Chemistry, School of Science, Tokai University 4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan,   Volcanology Research Department, Meteorological Research Institute (MRI), Japan Meteorological Agency (JMA), Ibaraki, Japan
Published: September 2019

Volcanic gas was sampled at three fumaroles and one borehole on Mt. Mihara, Izu-Oshima volcano. The fumarolic gas and the borehole steam possessed an excess enthalpy relative to the air saturated with water vapor. The fumarolic gas located west of the pit crater on Mt. Mihara showed a time variation in chemical and isotopic composition. The cause of the variation seems to be an enhancement of water vapor condensation. No similar variation was observed in the fumarolic gas located east of the pit crater, suggesting the above variation is a phenomena localized around the western fumarole. Hydrogen gas was detected in the sampled gases with low concentration. The change in the H2 concentration synchronized among the three fumaroles, suggesting the H2 gas originated in the hydrothermal system developed beneath Mt. Mihara.
Influences on torque measurement in nacelle test benches and their effect on the measurement uncertainty and consequences of a torque calibration
Authors: Foyer Gisa , Kock Stefan , Weidinger Paula
Published: September 2019

Torque measurement in the MN·m range is important in nacelle test benches, as it constitutes the primary value for the efficiency determination of wind turbine drive trains. However, no traceable measurement is possible above 1.1 MN·m. At the moment, alternatives to direct torque measurement in the MN·m range are, therefore, used. Several of these torque measurement methods are presented and discussed in this paper with respect to traceability and measurement uncertainty. It was found that these methods cannot fully substitute direct measurements. Therefore, detailed recommendations for a torque calibration procedure based on the specific conditions in nacelle test benches (such as rotation and additional mechanical loads) are given so as to enable the traceability of torque measurement using a torque transfer standard.
İkinci Meşrutiyet’in İlanının Adana’ya Yansımaları ve Şehirdeki Asayiş Sorunları (1908-1909)
Authors: KARLANGIÇ Osman
Published: September 2019

Abdülhamit’in meşruti yönetime son vermesinden sonra ona karşı oluşan
muhalefet 1908’de meşrutiyetin tekrar ilanını sağladı. Bunun Osmanlı
şehirlerine yansımaları oldu. Şehirlerde yaşanan sevinç gösterilerinde ölçünün
kaçması ve sonrasında yaşanan aşırılıklar zaten kötüye giden asayiş
problemlerini daha da ağırlaştırdı. Abdülhamit dönemi yöneticilerinin
aşağılanarak işten el çektirilmesi ve bunların yerine tecrübesiz yöneticilerin
getirilmesi devlet otoritesinin zaafa uğramasına neden oldu. Yine devlet
yöneticilerinin işlerine müdahale edenlerin çoğalması, vergi vermek istemeyen
bir kesimin ortaya çıkması, durumu daha içinden çıkılmaz hale getirdi. Adana’yı
diğer Osmanlı şehirlerinde yaşanan gelişmelerden bağımsız değerlendirmek mümkün
değildir. Bu çalışmada İkinci Meşrutiyet’in ilanının Adana’ya yansımaları ve bahsi
geçen dönemde şehrin ağırlaşan asayiş problemleri üzerinde durulacak, yaşanan
gelişmelerin devlet otoritesine etkileri değerlendirilecektir. 1908-1909
yıllarındaki Türk Ermeni ilişkileri çalışmanın kapsamı dışındadır.
Determinan Akuntabilitas Pengelolaan Keuangan Daerah (Studi Kasus pada Pemerintah Daerah Kabupaten Pemalang)
Authors: Hardiningsih Pancawati , O. Rachmawati Meita , Srimindarti Ceacilia , Kristiana Ida
Published: September 2019

This study aims to examine the determinants of accountability in regional financial management. This research was conducted at SKPD in Pemalang Local Government. The unit of analysis in this study is all SKPD in Pemalang Local Government. Respondents are employees of the finance and financial administration department. The sampling technique using Convenience Sampling obtained 110 employees. Survey method using a questionnaire distributed to employees with a Likert scale model. The analysis technique uses multiple linear regression analysis methods. The results of this study indicate the effect of the presentation of financial statements, internal control systems and accessibility of financial statements have a positive effect on accountability in regional financial management. But the value for money does not affect the accountability of regional financial management.
Pengaruh Profitabilitas dan Solvabilitas Terhadap Yield Sukuk dengan Peringkat Sukuk Sebagai Variabel Moderator pada Perusahaan di Indonesia
Authors: Setiyani Eprisa Risky , Baihaqi Jadzil , Supriyadi S.
Published: September 2019

This study aims to determine the effect of profitability and solvency on sukuk yields with Sukuk ratings as moderator variables. The population of this study is the company that issued Sukuk on the IDX in 2014-2017. By using a purposive sampling technique, there are 9 companies with 34 Sukuk as the final sample. This study uses a quantitative approach with secondary data types. The analysis technique uses multiple linear regression and Moderated Regression Analysis supported by IBM SPSS 24. The results are (1) Profitability does not have a significant effect on sukuk yield. This is because regardless of the company's profits, the investor still receives a refund and the fee specified. (2) Solvability has a significant positive effect on sukuk yield. (3) The sukuk rating is not able to moderate the relationship between profitability and sukuk yield. (4) Sukuk rating can moderate the solvency relationship with sukuk yield.
Analysis of Factors Influenced on Oil Rim Breaking up During Gas Cap Development
Authors: Samolovov Dmitriy
Published: September 2019

The main goal of the present paper is to determine main factors affected on oil rim breaking up ratio during gas cap development, to construct analytical model of this process and to develop method for movable oil reserves decrease estimation based on the analytical model.

Field with underlaying oil rim is considered. Gas cap development leads to reservoir pressure decrease, oil viscocity increase due to dissolved gas liberation and underlaying water expands sweeping oil from oil rim and forming immobile oil reserves behind displacement front. For volume of penetrating water estimation material balance equation is considered. Equation is solved in analytical form using linearization of main oil and gas properties deopendencies from pressure. For immobile oil reserves calculation balance equation is considered taking into account initial and residual saturations of oil, gas and water. For determine main factors affected breaking up ratio dimensional analysis is used.

In the present paper main factors affected oil rim breaking up ratio is determined. There are factors characterized reservoir energetic, oil and gas reserves, relative permeability properties, ratio of gas production. During dimensional analysis count of this factors was reduced to five, this is dimensionless potential of gas cap, dimensionless potential of aquifer, dimensionless gas production, displacement efficiency of oil by water and water's redisplacement efficiency of oil sweeping gas. Also it is shown that presence of strong aquifer intensifies breaking up because expanding water forms essential volume of immobile oil reserves.

Novelty of this work consists of analytical model of oil rim breaking up during gas cap development and determination of main factors affected breaking up ratio. Results can be used for estimation of gas cap development on movable oil reserves in oil rim and for estimation of oil rim development efficiency with early gas cap development.
Risk factor for postoperative hemorrhage after cesarean section for placenta previa : A retrospective study
Authors: Ishibashi Hiroki , Miyamoto Morikazu , Soyama Hiroaki , Iwahashi Hideki , Kawauchi Haruka , Takasaki Kazuki , Matuura Hiroko , Nakatsuka Masaya , Hada Taira , Takano Masashi
Published: September 2019

Background
Placenta previa can cause postoperative hemorrhage. Even cases with less intraoperative hemorrhages during cesarean section have the potential risk of developing postoperative hemorrhage. However, there are few reports on the predictive factors of postoperative hemorrhage associated with placenta previa. The aim of this study was to identify the predictive factor for postoperative hemorrhage after cesarean section in women with placenta previa.
Methods
We identified women with placenta previa who underwent cesarean section at our institution between January 2003 and February 2015. All women who received any hemostatic procedure, such as intrauterine balloon tamponade and gauze infiltration during cesarean section were excluded. All women were classified into two groups: Group A, women with massive postoperative hemorrhage, defined as over 500 ml of hemorrhage after cesarean section, and Group B, women without postoperative hemorrhage. A retrospective analysis to identify the predictive factors for postoperative hemorrhage was conducted.
Results
Out of 128 women, 10 (7.8%) were included in Group A and 118 (92.2%) in Group B. There was no statistically significant difference in maternal history between the groups. The number of women suspected to have placental adhesion was higher in Group A than in Group B (p=0.006). Furthermore, the amount of intraoperative hemorrhage in Group A was higher than that in Group B (p=0.025). As treatment for postoperative hemorrhage, more women in Group A received allogenic blood transfusion (p=0.003) and uterine artery embolization (p = 0.010). In univariate analysis, placental adhesion suspected by the surgeon during cesarean section was the predictive factor for postoperative hemorrhage with placenta previa (p=0.002).
Conclusions
When placental adhesion is suspected by surgeons during a cesarean section, additional hemostatic procedures should be performed to prevent possible postoperative hemorrhage.
Increased Th17 and Th22 cell levels predict acute lung injury in patients with sepsis
Authors: Li Gang , Zhang Liangtian , Han Nannan , Zhang Ke , Li Hengjie
Published: September 2019

Background: Acute lung injury (ALI) is one of the major complications of severe sepsis. This study was conducted to investigate the levels of Th22 and Th17 cells in the peripheral blood septic patients with ALI and their clinical significance. Results: A total of 479 septic patients admitted between January 2013 to January 2018 were divided into non-ALI (n = 377) and ALI groups (n = 102) based on the presence or absence of ALI. The levels of Th22 and Th17 cells, interleukin 22 (IL-22), 6 (IL-6) and 17 (IL-17) were determined. Receiver operating characteristic curve (ROC) analysis was performed to assess the early diagnostic value of Th22 and Th17 cells to predict sepsis-induced ALI. The lung injury prediction score (LIPS), IL-6, IL-17, IL-22, and levels of Th17 and Th-22 cells were 9.13, 14.02 ng/L, 13.06 ng/L, 22.90 ng/L, 8.80% and 7.40%, respectively, in the ALI patients and were significantly higher in the ALI group than in non-ALI group (P < 0.05). Pearson correlation analysis showed that LIPS, IL-17, IL-22, Th17 cells and Th22 cells were significant factors affecting sepsis-induced ALI (P < 0.05). The correlation analysis showed that the levels of Th22 cells in the peripheral blood of septic patients with ALI were positively correlated with LIPS, IL-22 and the levels of Th17 cells (P < 0.05), and the levels of Th17 cells were positively correlated with LIPS and IL-17 (P < 0.01). Multivariate logistic regression analysis showed that the LIPS (OR = 1.130), IL-17 (OR = 1.982), IL-22 (OR =2.612) and levels of Th17 (OR = 2.211) and Th22 (OR =3.230) cells were independent risk factor for ALI. The area under the curve of Th22 cells was 0.844 with a cutoff value of 6.81% to predict ALI. The sensitivity and specificity for early diagnosis of sepsis-induced ALI by Th22 cells were 78.72% and 89.13% respectively, which were better but statistically similar as compared with Th17 cells (P > 0.05). Conclusions: The levels of Th22 and Th17 cells in peripheral blood are significantly increased in septic patients with induced ALI, and may be used for early diagnose of sepsis-induced ALI.
GAMYB gene in rye – sequence, polymorphisms, map location, allele-specific markers and relationship with selected agronomic traits
Authors: Bienias Anna , Góralska Magdalena , Masojć Piotr , Milczarski Paweł , Myśków Beata
Published: September 2019

Background. A master GA-induced regulatory protein, crucial for development and germination of cereal grain and involved in anther formation is MYB transcription factor GAMYB, activating a vast number of genes including high-molecular-weight glutenin and α-amylase gene families. This paper presents the first attempt to characterize rye gene encoding GAMYB in relation to its sequence, polymorphisms and phenotypic effects. Results. ScGAMYB gene was identified and mapped on rye chromosome 3R using high-density DArT/DArTseq-based maps developed in two mapping populations. Comparative analysis of the gene sequence revealed its high level of homology to wheat and barley orthologues. Single nucleotide polymorphisms detected among rye inbred lines allowed developing AS-PCR markers for ScGAMYB (ten pairs of primers) which might be used to detect this gene in wide genetic stocks of rye and triticale. Segregation of ScGAMYB alleles showed significant relationship with quantitative traits including plant height, thousand grain weight, α-amylase activity, earliness per se and leaf rolling. Conclusions. The research showed the strong similarity of rye GAMYB sequence to its orthologues in other Graminae and confirmed the position in the genome consistent with the collinearity rule of cereal genomes. The statistically significant, however moderate association of ScGAMYB with many agronomic features has been pointed out, which proved that this gene is a QTL of pleiotropic character. The effect of ScGAMYB on flowering time was statistically the most significant. Developed sequence-based, allele-specific PCR markers could be useful in research and application purposes.
New data on known species of Hirschmanniella and Pratylenchus (Rhabditida, Pratylenchidae) from Iran and South Africa
Authors: Shokoohi Ebrahim , Abolafia Joaquín , Mashela Phatu William , Divsalar Nafiseh
Published: September 2019

Hirschmanniella anchoryzae from Iran and Pratylenchus hippeastri from South Africa were recovered during a survey of plant-parasitic nematodes belonging to the family Pratylenchidae. Both species were studied using morphological and molecular techniques. Hirschmanniella anchoryzae is identified based on the flattened head, short stylet (19–22 µm), excretory pore position (anterior to pharyngo-intestinal junction), spicule length (27–30 µm), and existence of an axial mucro at the tail end. Phylogenetic analysis using 28S rDNA showed monophyly of Hirschmanniella which Iranian H. anchoryzae placed close to H. halophila (EU620464; EU620465). This result was supported by the principal component analysis of Hirschmanniella species. SEM observation of the South African population of P. hippeastri showed the presence of two annuli in the lip region. Morphometric characters resembled those of specimens earlier reported from South Africa. Hierarchal cluster using morphometrical criteria showed that the Floridian (USA) and South African populations form a group. However, the principal component analysis showed variation within this species. The molecular study of P. hippeastri populations using 18S, ITS, 28S rDNA, and COI of mtDNA showed that all P. hippeastri cluster in one group and confirmed the identification of the species using both morphological and molecular techniques. In addition, the results indicated that South African populations group close to the USA populations. Illustrations of both species including light and scanning electron microscopy observations for P. hippeastri are provided.
Developing a real-time PCR diagnostic method for a potential threat to chrysanthemum, Paratylenchus dianthus
Authors: Kawanobe Masanori , Toyota Koki , Uchihara Hidehito , Takae Mikoto
Published: September 2019

Chrysanthemum is a very popular flower in Japan and is known to be infected by many soil-borne plant pathogens including nematodes. A nematode survey in six chrysanthemum fields in Okinawa, Japan, found Pratylenchus, Meloidogyne, and Paratylenchus (P. dianthus). The first two genera are known as plant pathogens against chrysanthemum, however, Paratylenchus dianthus has not been reported previously. Chrysanthemum seedlings were grown in pots containing soil infected only with P. dianthus for two months in 2017 and 2018. The nematicide imicyafos was applied in triplicates to half of the pots (treated) while the other half were left without the nematicide (non-treated). Plant height and dry plant weight of the imicyafos treated plants exceeded those of the control plants. Also, single-photon avalanche diode value of chrysanthemum leaves was higher in imicyafos treated plants than in the non-treated plants at two-month after planting. The results suggest that P. dianthus may suppress the growth of chrysanthemum. For high-throughput nematode diagnosis, a real-time PCR primer set specific to P. dianthus was developed and its sensitivity to quantify P. dianthus was confirmed with a proper calibration curve. The calibration curve was developed in a simplified approach by using serially diluted DNA extracted from individual nematodes.
Movement of seed- and soil-applied fluopyram in soil columns
Authors: Faske Travis R. , Brown Katherine
Published: September 2019

The movement of seed- and soil-applied fluopyram was evaluated in soil columns. The nematicide was sampled at three soil depths and used in a nematode motility bioassay. Based on Meloidogyne incognita mortality, the downward movement of soil-applied fluopyram was affected by soil type and application method. No nematode-toxic levels of soil-applied fluopyram were detected past 5 cm depth in sandy loam soil compared to 10 cm depth in sandy soil. A slower rate of water infiltration had little impact on the movement of soil-applied fluopyram in sandy soil, but did affect the movement of soil-applied abamectin. In the seed-applied nematicide experiments, a greater effect on nematode mortality was observed at the 0 to 5 cm depth in sandy soil with fluopyram- than abamectin-treated cotton seed, whereas a similar effect was observed with soybean seed. No effect on nematode motility was observed with other seed-applied nematicides, thiodicarb, and Bacillus firmus. Overall, soil-applied fluopyram had a greater effect on M. incognita mortality at 10 cm depth in sandy soil than seed-applied fluopyram. These data provide a better understanding as to the movement of fluopyram as affected by soil type, water infiltration rates, and application methods.
Morphological and Molecular Characterization of Oscheius saproxylicus sp. n. (Rhabditida, Rhabditidae) From Decaying Wood in Spain, With New Insights into the Phylogeny of the Genus and a Revision of its Taxonomy
Authors: Abolafia Joaquín , Peña-Santiago Reyes
Published: September 2019

A new species of the genus Oscheius, O. saproxylicus sp. n., collected in decaying wood obtained from an orchard in Southern Iberian Peninsula, is reported. A detailed description, including morphometrics, LM and SEM images, and molecular (18S and 28S rDNA genes) information is provided. The female is characterized by a moderately long body, lateral field with three longitudinal ridges, midbody vulva, and conical tail with acute tip. It was distinguished from its closest relative, O. dolichura, by a shorter tail and longer rectum. The male was not found. Morphological and molecular data support its belonging to Dolichura-group. Molecular analyses show that both Insectivorus and Dolichura groups are related to each other, being proposed as subgenera of the genus Oscheius as Oscheius and Dolichorhabditis. Finally, an updated taxonomy of the genus is presented, with generic and subgeneric diagnoses, list of species and a key to their identification.
Hatching and Mortality of Meloidogyne enterolobii Under the Interference of Entomopathogenic Nematodes In vitro
Authors: Damascena Alixelhe Pacheco , Ferreira Júlio César Antunes , Costa Marylia Gabriella Silva , de Araujo Junior Luis Moreira , Wilcken Silvia Renata Siciliano
Published: September 2019

Plant parasitic nematodes have become one of the main problems in the tomato cultivation. Among these, Meloidogyne enterolobii presents great challenges to the farmer, since it is a polyphagous species and difficult to control. The entomopathogenic nematodes (EPNs) present as potential for biological control of this pathogen. The objective of the study was to evaluate the interference of EPNs S. brazilense, S. feltiae, S. rarum, H. amazonensis and H. bacteriophora on hatching and mortality of M. enterolobii. 500 eggs of this nematode and 1.000 infective juveniles of each EPN species were placed in a plastic pot totaling 25 mL of suspension and kept in an incubator at 25°C. The number of juveniles hatched in the suspension was counted every 2 days, until 10 days. After 10 days of evaluations, the remaining suspension (15 mL) containing M. enterolobii and EPNs was inoculated into Rutgers tomato seedlings. The suspension contained approximately in 300 eggs of M. enterolobii occasional juveniles and 600 IJ of each nematode species. Sixty days after inoculation were evaluated gall indexes, egg mass indexes, total number of eggs and juveniles of M. enterolobii and reproductive factor was calculated. In the mortality experiment, 500 infective juveniles of M. enterolobii and 1.000 juveniles of each EPN species were placed in a plastic pot totaling 25 mL of suspension. The evaluation of juvenile mortality was performed by counting of the mobile and immotile nematodes, by adding two drops of NaOH to the nematode suspension. It was verified that on the 10th day all ENPs provided reduction in the hatching of M. enterolobii. In the pot experiment it was found thato gall index, egg mass indexm, nematodes total number and reproduction factor were significantly reduced in treatments with all species of EPNs tested. However, in the mortality test, only EPNs S. brazilense and S. rarum provided mortality on the second day and H. bacteriophora affected mortality on the 4th day. In the other evaluations, there was no statistical difference. The results highlight the potential of the use of EPNs in programs of integrated management of M. enterolobii in tomato.
Morphological and Molecular Characterization of Coslenchus paramaritus n. sp. and C. cancellatus (Cobb, 1925) Siddiqi, 1978 (Nematoda: Tylenchidae) from Iran
Authors: Hosseinvand Manouchehr , Eskandari Ali , Ghaderi Reza
Published: September 2019

Coslenchus paramaritus n. sp. and C. cancellatus were identified based on morphological, morphometric, and molecular characteristics. The new species, C. paramaritus n. sp., is characterized by its cuticle with 18 longitudinal ridges excluding lateral lines, wide cuticular annuli (2.6–3.0 µm), a long tail (94–128 µm), the presence of males and the absence of sexual dimorphism in head shape. Molecular phylogenetic studies of the new species using D2–D3 expansion segments of 28S rRNA revealed that the new species formed a sister clade with three unknown populations of Coslenchus in Bayesian inference (BI) phylogeny, while C. cancellatus formed a sister clade with other Coslenchus species including C. oligogyrus, C. franklinae, C. costatus, C. turkeyensis and three unknown populations. C. cancellatus is recovered from Iran for the first time.
Validation of the Chemotaxis of Plant Parasitic Nematodes Toward Host Root Exudates
Authors: Liu Wenshan , Jones Alexis L. , Gosse Heather N. , Lawrence Kathy S. , Park Sang-Wook
Published: September 2019

Plant parasitic nematodes (PPN) are microscopic soil herbivores that cause damage to many economic crops. For the last century, it has been proposed that chemotaxis is the primary means by which PPN locate host plant roots. The identities and modes of action of chemoattractants that deliver host-specific messages to PPN, however, are still elusive. In this study, a unique multidimensional agar-based motility assay was developed to assess the impacts of root exudates on the short-range motility and orientation of PPN. Three PPN (Rotylenchulus reniformis, Meloidogyne incognita and Heterodera glycines) and root exudates from their respective host and non-host plants (cotton, soybean, and peanut) were used to validate the assay. As predicted, R. reniformis and M. incognita were attracted to root exudates of cotton and soybean (hosts), but not to the exudates of peanut (non-host). Likewise, H. glycines was attracted to soybean (host) root exudates. These results underpinned the intrinsic roles of root exudates in conveying the host specificity of PPN. In particular, PPN selectively identified and targeted to hydrophilic, but not hydrophobic, fractions of root exudates, indicating that groundwater should be an effective matrix for chemotaxis associated with PPN and their host plant interactions.
Experimental Study of the Leakage Current in Coated Insulators Under Salt-Fog Conditions
Authors: Espinola Hugo Linhares Dias , Lopes Ivan José da Silva
Published: September 2019

The accumulation of contaminants in electrical insulators reduce their performance and may lead to failures. Estimating the degree of pollution of in-service equipment is not a trivial task as the process of contamination depends on several factors. It is necessary to monitor the insulators so that preventive measures can be taken in a timely manner. In this context, this paper aims to study how the amplitude, angular phase and total harmonic distortion (THD) of the leakage current can be used to monitor insulators and how these parameters are affected by the application of hydrophobic coatings. For this purpose, standard uncoated and coated glass insulator samples were subjected to electrical tests in a salt-fog chamber while the leakage current was monitored. The results show that the analyzed parameters provide relevant information about the insulation condition and how the application of hydrophobic coatings results in improvements in the insulator performance.
Análisis de aulas virtuales desde la multimodalidad
Authors: Svensson Viviana Corina
Published: September 2019

El objetivo de este trabajo fue analizar un corpus de aulas virtuales de una carrera de grado de modalidad semipresencial desde la semiótica multimodal, a partir de los interrogantes: ¿cómo se diseña el módulo de contenido educativo?, ¿de qué manera se organiza la información en la interfaz?, ¿en qué medida y con qué sentido aparece la multimodalidad? Se siguió el modelo GeM, (Bateman, 2009) para la organización de los datos. Tras el análisis emergieron diferencias referidas a: 1) la concepción de aula virtual más como medio real que como ‘ambiente de aprendizaje’; 2) prevalencia de datos lineales por sobre los no lineales; 3) dificultad en la agrupación de las unidades básicas de los módulos en entidades más complejas.
Desarrollo de un entorno digital de aprendizaje desde el Conectivismo y su posterior análisis utilizando algoritmos de machine learning.
Authors: Sánchez Sordo José Manuel
Published: September 2019

El Conectivismo plantea que el conocimiento se encuentra distribuido a través de una red personal de conexiones, y por consiguiente el aprendizaje consiste en la habilidad de los individuos para construir y navegar esas redes. El objetivo del estudio se centró en desarrollar un entorno digital con base en postulados teóricos del Conectivismo dentro del cual se pudieran conocer las interacciones de aprendizaje por parte de los participantes. Se contó con una muestra de 117 voluntarios y se analizaron los datos de forma cuantitativa con algoritmos de inteligencia artificial. Los resultados muestran que los foros son buenos predictores de permanencia dentro del entorno y que, a mayor habilidad en el uso de internet menor es el uso de plataformas educativas.
AVRUPA'NIN DEMOGRAFİK DÖNÜŞÜMÜNDE UZUN DÖNEM YAŞLI BAKIMININ SÜRDÜRÜLEBİLİRLİĞİNİN DEĞERLENDİRİLMESİ
Authors: KARATAĞ Hüseyin , AKYILDIZ Nihal Arda
Published: September 2019

Son yüzyılda yaşanan ekonomik ve
sosyal gelişmeler ile sağlık alanında yaşanan değişimler; doğuşta beklenen
ortalama yaşam süresini uzatmıştır. Doğuşta beklenen ortalama yaşam süresinin
uzaması ve sosyo-ekonomik hayattaki değişimler sonucu doğurganlık oranındaki
azalma, dünyada yaşlı nüfus oranında önemli artışlar getirmiştir. Özellikle
gelişmiş dünyada yer alan Avrupa ülkelerinde demografik değişim ve sonuçları
çok daha erken görülmeye başlanmıştır. Bu demografik dönüşüm ülkeleri yeni
güçlükler ile karşı karşıya getirmiştir. Ortalama yaşın büyümesi ve bağımlılık
oranının artması nedeniyle yaşlanma; kamu harcamaları, bütçe disiplinlini ve
işgücü arzı üzerinde baskı oluşturmaktadır. Yaşlanma problemi ile karşı karşıya
olan ülkeler sağlık, uzun dönem bakım ve diğer sosyal güvenlik araçlarının
sürdürülebilirliğini sağlamak için sosyal politikalarını ve altyapılarını ve bu
yeni duruma adapte etmek zorundalar.
Bearing fault diagnosis based on feature extraction of empirical wavelet transform (EWT) and fuzzy logic system (FLS) under variable operating conditions
Authors: Gougam Fawzi , Rahmoune Chemseddine , Benazzouz Djamel , Merainani Boualem
Published: September 2019

Condition monitoring of rotating machines has become a more important strategy in structural health monitoring (SHM) research. For fault recognition, the analysis is categorized in two essential main parts: Feature extraction and classification; the first one is used for extracting the information from the signal and the other for decision-making based on these features. A higher accuracy is needed for sensitive places to avoid all kinds of damages that can lead to economic losses and it may affect the human safety as well. In this paper, we propose a new hybrid and automatic approach for bearing faults diagnosis. This method uses a combination between Empirical wavelet Transform (EWT) and Fuzzy logic System (FLS), in order to detect and localize the early degradation of bearing state under different working conditions. EWT build a wavelet filter bank to extract amplitude modulated-frequency modulated component of signal. Modes presenting a high impulsiveness is then selected using the kurtosis indicator. Thereafter, time domain features (TDFs) are applied for the reconstructed signal to extract the fault features which are finally used as an inputs of FLS in order to identify and classify the bearing states. The experimental results shows that the proposed method can accurately extract and classify the bearing fault under variable conditions. Moreover, performance of EWT and empirical mode decomposition (EMD) are studied and shows the superiority of the proposed method.
Experimental and finite element approach for finding sound absorption coefficient of bio-based foam
Authors: Yuvaraj L. , Jeyanthi S. , Mailan Chinnapandi Lenin Babu
Published: September 2019

The enormous consumption of Polyurethane foam leads to severe environmental pollution and health hazards, so it is necessary to overcome this problem. This paper presents alternative and less hazardous foam that differs from traditional foams. A bio-based foam was developed either by using castor oil-based polyol or natural fibers as fillers. In the present study, rigid foam is synthesized by both castor polyol and luffa fiber, whereas for flexible foam, only luffa fiber is incorporated. Luffa fillers enhance the porosity of Polyurethane foam, which is the dominating factor influencing the value of the sound absorption coefficient. Both rigid and flexible foams were developed with 5, 10 and 15 percentages of filler loaded. The samples are tested experimentally using the two-microphone impedance tube method and the measured result was compared with the numerical result, which is predicted from COMSOL Multiphysics. The experimental results of flexible foam demonstrate good agreement with numerical results. The results indicate that the addition of Luffa fibers enhances the sound absorption performance of flexible foam and deterioration in the rigid foam because of the high viscosity of castor oil polyol.
Degradation feature extraction method for piezoelectric ceramic of ultrasonic motor based on DCT-SV cross entropy
Authors: An Guoqing , Song Kaiyao , Li Rui , Sun Huiqin , Li Hongru
Published: September 2019

Crack on piezoelectric ceramic is the main reason leading to failure of ultrasonic motors. A novel degradation feature extraction method based on discrete cosine transform (DCT) -singular value (SV) cross entropy was proposed in this paper. In order to improve the correlation with the crack, the DCT coefficients with the property of energy aggregation, were used to extract fault information. To avoid the influence of human factors in traditional DCT de-noising method, a matrix composed of DCT coefficients was constructed, and the SV cross entropy of the matrix was taken as the degradation feature for ultrasonic motor. A numerical simulated noise was added to the measured signal to verify the anti-noise performance of the feature. Analysis of the experimental results demonstrates that the proposed DCT-SV cross entropy is feasible and effective in indicating the degradation of piezoelectric ceramic in ultrasonic motor.
Dynamic responses of base-isolated concrete liquid storage structure under two types of resonances
Authors: Jing Wei , Wang Jingxuan
Published: September 2019

One important characteristic of base-isolated liquid storage structure (LSS) is that the vibration periods of structure and liquid are different, namely, there are two kinds of periods in the system. As a result, structure or liquid resonance may occurs under external excitation. In order to reflect the nonlinear characteristics of liquid sloshing, subsonic potential-based element is used to simulate the liquid. The governing equations of liquid field and fluid-structure interaction (FSI) equations are established; the initial and boundary conditions of liquid sloshing in dynamic coordinate system are obtained. Harmonic functions used to conduct time history analysis are generated by the first order vibration frequencies of structure and liquid respectively. The dynamic responses of base-isolated rectangular liquid storage structure (RLSS) under two types of resonance are studied comparatively. Results show that when the external excitation frequency is equal to the first order vibration frequency of isolated structure or liquid sloshing, wall tensile stress, structure displacement, base shear force and liquid sloshing wave height will appear resonance amplification phenomenon. The dynamic responses of structure itself caused by structure resonance are greater than that of liquid resonance; while the liquid sloshing wave height caused by liquid resonance is greater than that of structure resonance. Under structure resonance, the wall is prone to be cracked; and under liquid resonance, the liquid velocity field will become unusually violent, and liquid overflow will be caused easily.
Forced response characteristics of random mistuned blade disk based on weibull distribution and monte carlo simulation
Authors: Zhang Hongyuan , Yuan Huiqun , Sun Hongyun
Published: September 2019

This paper presents a method of mistuning identification of a random mistuned bladed parameter, to predict the forced vibration characteristics of random mistuned blade disk of aeroengine compressor, based on the prestress mode synthesis method, substructure finite element reduction model was adopted, the identification method combines Weibull distribution with Monte Carlo simulation to identify the random mistuned blade parameters. The vibration characteristics of mistuned bladed disks under different engine orders of excitation were calculated, and the vibration characteristics of mistuned bladed disk systems under different mistuning standard deviations were discussed. Vibration localization characteristics of mistuned bladed disk system were analysed by using localization factor. The correctness of the identification method was verified by calculating the vibration amplitude of mistuned bladed disk system under different mistuning standard deviations.
New contributions to the phylogenetic position of the sauropod Galvesaurus herreroi from the late Kimmeridgian-early Tithonian (Jurassic) of Teruel (Spain)
Authors: Pérez-Pueyo M. , Moreno-Azanza M. , Barco J. L. , Canudo J. I.
Published: September 2019

Galvesaurus herreroi is a sauropod from the Villar del Arzobispo Formation (late Kimmeridgian-early Tithonian), from the municipality of Galve (Teruel). Its phylogenetic relations have been long debated, so we carried out a phylogenetic analysis, using a new data matrix recently published by Carballido et al. (2017). The characters of Galvesaurus were coded on the basis of the redescription of the published remains and the description of two unpublished fossils: a right coracoid and a fragment of the right pubis. The results of the analysis suggest the inclusion of Galvesaurus in the clade Titanosauriformes, as a sister taxon to Lusotitan, these two taxa form part of the Brachiosauridae clade. Likewise, a stratigraphic study was undertaken, placing the Galvesaurus site in the lower part of the Villar del Arzobispo Formation, thus assigning the sauropod a late Kimmeridgian-early Tithonian age.
Fault relay zones within the eastern sector of the Jiloca Basin (Iberian Chain): geometry, kinematics and analogue modelling
Authors: Peiro Alba , Simón José Luis , Román-Berdiel Teresa
Published: September 2019

The eastern sector of the Jiloca basin (Iberian Chain) developed due to the right-relay arrangement of three NW-SE striking normal faults: the Calamocha, Sierra Palomera and Concud faults. Together with the Teruel fault, they all bound three relay zones where evidence of recent fracturing has been found. Thanks to the analysis of brittle deformation, at both map and outcrop scales, and to its comparison with results from analogue modelling, we are able to infer its geometrical, kinematical and dynamical relationship with the macrostructures, within the framework of the near-multidirectional extension regime active in the studied area. During analogue modelling it was important to analyse possible variations in the resulting fractures, controlled by different extension velocities in two orthogonal directions and by the orientation of the main faults within both directions of extension. The fractures, both in the studied area and in analogue models, show a mostly parallel orientation to the macrostructures that bound the relay zones. They are controlled by the main fault strikes and, to a greater extent, by the dominant ENE-WSW direction of dominant extension within the regional stress field. All this has allowed us to define a new kind of interaction within extensional fault relay zones, called in this study relay with along-strike distributed fractures.
Development of a 3D geological model in the urban center of Oviedo (Asturias)
Authors: Fernández-Álvarez Pelayo , Pando Luis
Published: September 2019

In relation to the research on urban geology in Asturias (NW Spain), this is the first layer-based three-dimensional model about the geological setting of Oviedo’s urban centre. Its development is based on data on the subsoil provided by almost a thousand geo-referenced site investigation points, including more than 500 boreholes, covering an area of approximately 3 km2. These data, stored in a geotechnical database, were managed through a Geographical Information System. After producing a Digital Elevation Model as an altitudinal reference, different raster surfaces were generated by using a deterministic interpolator and map algebra, representing the boundaries between the geological units. This allowed the reviewing and updating of the geological superficial mapping; investigating the geometry of the units, mainly their thicknesses, and deducting the traces of potential faults crossing the urban subsurface. All this has been integrated into a virtual 3D environment complemented through the recreation of different urban elements.
Shale gas potential in the north of Spain in the transition to energies with a lower carbon footprint
Authors: García Pérez Asier , Regueiro Manuel , Pieren Vidal Agustín
Published: September 2019

The change to an energy model with lower carbon footprint sources, and the development of the corresponding technologies and extraction techniques has placed shale gas in the spotlight as it is a less polluting resource and it is abundant in the north of Spain. This energy model could be able to supply, to a large extent, the current energy needs of the country. However, there is a relevant lack of information on the subject regarding geological, economic, environmental and social issues. Consequently, a strong public opposition has developed, that has so far paralyzed the exploration and potential exploitation of these resources. The future changes required in the search for less polluting energy sources and the need to acquire a strategic position in the energy sector make it essential to allow both research into this resource and its exploration in Spain. Therefore, this study aims to show the current situation of natural gas in a “transitory” context towards less aggressive energies to the environment as well as to explain how shale gas is produced and how extraction should be carried out in Spain with the problems that this would entail. The study also aims to analyze the citizens’ responses and concerns regarding the development of this technology.
Seçilmiş Asya Ülkelerinin Lojistik Performanslarının TOPSİS Yöntemi ile Değerlendirilmesi
Authors: Oğuz Suzan , Alkan Gamze , Yılmaz Burcu
Published: September 2019

Günümüzde lojistik
alanında gerçekleştirilen faaliyetler, ülkelerin ekonomik yönden rekabet gücü
kazanmaları açısından kilit rol oynamaktadır. Lojistik performans düzeyi yüksek
olan ülkeler uluslararası ticarette de öne çıkmakta ve ekonomik büyüme
hızlarını arttırmaktadırlar. Uluslararası boyutta yapılan lojistik performans
değerlendirmeleri, dünyadaki diğer ülkeler arasında kendi konumlarını
belirlemek isteyen ülkeler açısından büyük önem arz etmektedir. Bu doğrultuda;
Dünya Bankası, her iki yılda bir 160 ülkenin karşılaştırılmasına olanak
sağlayan Lojistik Performans Endeksi (LPI) raporu yayınlamaktadır. Bu kapsamda;
bu çalışmanın amacı, yedi Asya ülkesinin (Güney Kore, Hong Kong, Singapur,
Endonezya, Malezya, Tayvan ve Tayland) lojistik performanslarını Çok Kriterli
Karar Verme (ÇKKV) tekniklerinden biri olan TOPSIS (Technique for Order-Preference by Similarity to Ideal Solution)
yöntemi ile sıralamaktır. Ülkeleri lojistik performanslarına göre sıralamak
için LPI kriterleri dikkate alınmıştır. Sıralama sonucunda lojistik performansı
en yüksek olan ülkenin Singapur, en düşük olan ülkenin ise Endonezya olduğu
tespit edilmiştir.
The Study of Natural Compounds Targeting RANKL Signaling Pathway for the Treatment of Bone Diseases
Authors: Liu Chang , He Yuan , Xu Xiaobing , He Lijun , He Baorong , Kong Lingbo
Published: September 2019

Millions of people, especially for the aging people, are suffered by bone-loss diseases, such
as rheumatoid arthritis (RA) and osteoporosis. Therefore, better understanding the involved mechanisms
of bone metabolism is required for further treat on such diseases. Particularly, during the pathological
process of bone losing, RANKL as a member of the tumor necrosis factor (TNF) superfamily,
could induce osteoclast precursor cells differentiate into mature osteoclast, which grant its essential
role in osteolysis. In recent years, with the increased attention paid to the natural compounds discovering
studies, the therapeutic application of natural plant-derivatives have been widely recognized.
Therefore, our present study aim to summarize the current novel research progressions on RANKL
and its downstream signaling pathways in bone cellular differentiation, and provide a further insight
for RANKL as the important drug targets in bone loss diseases. Besides that, in our current study, we
also aim to briefly introduce the current application of several natural compounds for treating
RANKL-mediated osteoclastic activation by modulating the RANKL signaling pathway and their
therapeutic effects on the prevention of osteoporosis, osteoarthritis (OA) and RA.