bluuebunny/crossref_metadata_2025 huggingface dataset:
Does the Atlantic bonito, Sarda sarda, spawn in the eastern Adriatic Sea?
Authors: Čikeš Keč Vanja , Zorica Barbara , Vuletin Vedran
Published: October 2019

Atlantic bonito, Sarda sarda, is one of the representatives of the Scombridae family in the Adriatic Sea. Larvae and juveniles have been found and described in the area, but no information has been published regarding adults spawning in the Adriatic Sea. To explore the strong possibility that Atlantic bonito are reproducing in the Adriatic Sea, 122 specimens of adult Atlantic bonito were collected from a purse seine net ‘palamidara’ over four seasons in 2017. The fork length of the analysed specimens varied from 37.5 to 60.8 cm, with a mean of 48.83 ± 5.59 cm, while total body weight varied between 742.68 and 3102.59 g, with a mean value of 1700.49 ± 543.82 g. Gonadosomatic index values showed an increasing trend from autumn (0.123 for males, 0.897 for females) until spring, while in the summer, they reached their maximum values (3.609 for males, 5.604 for females). This trend was also confirmed by histological and macroscopic analyses of gonads, which suggested that the Atlantic bonito spawning season is in the spring-summer in the Adriatic Sea. Hence, this confirms that this species is spawning in the Adriatic Sea.
Determinants of Equitable Social Policy in Latin America (1990–2013)
Authors: ALTMAN DAVID , CASTIGLIONI ROSSANA
Published: October 2019

The fact that equitable social policy expanded drastically in Latin America during the left turn and during a time of prosperity does not necessarily mean that the ideological color of governing parties and economic growth are the engines behind changes in social policy, as is usually claimed by part of the literature. Using panel data from Latin American countries for 1990–2013, this paper offers an alternative explanation, derived from previous qualitative research, that the level of political competition, the strength of civil society, and wealth are the key factors behind the expansion of equitable social policy. Once these explanations are included in our models, the ideological leaning of governments and economic growth lose statistical significance. Thus, this paper challenges dominant approaches that consider social policy change in Latin America a consequence of the ideological leaning of the government and economic growth.
Health Technology Assessment Implementation in Ukraine: Current Status and Future Perspectives
Authors: Csanádi Marcell , Inotai András , Oleshchuk Oleksandra , Lebega Oksana , Alexandra Brodovskaya , Piniazhko Oresta , Németh Bertalan , Kaló Zoltán
Published: October 2019

Objectives

The need for improving healthcare decision making by implementing health technology assessment (HTA) has been a top priority in Ukraine since 2016. This study sought to provide a tailor-made HTA implementation roadmap, drawing on insights from national stakeholders.

Methods

We conducted a survey using a questionnaire already applied in previous HTA research. We assessed the status of HTA when reforms were initiated in 2016 and examined perspectives on possible future developments among policy makers and representatives of pharmaceutical companies and patient organizations.

Results

Thirty-two respondents answered the survey. Forty-eight percent of respondents were not aware of HTA training in Ukraine, but 91 percent preferred having either a graduate or postgraduate training. Experts stated that funding for HTA research and for critical appraisal of HTA submissions was limited, but in the future, they would increase funding mainly from public sources. A public HTA agency with academic support was the most preferred organizational structure. Eighty-eight percent of respondents opted for full transparency, making the HTA agency's recommendations and the related appraisal reports publicly available. A great majority of participants preferred mandating the use of local data in certain categories and indicated the importance of evaluating the transferability of international evidence. Healthcare priority and cost-effectiveness were the most important criteria for decisions, applied with a soft explicit threshold.

Conclusions

Ukraine is in the early phase of implementing HTA and our study provides a clear vision of national stakeholders about the future directions. In addition, learning from the experiences of other countries may help the implementation process.
Crowdsourcing evaluation of the quality of automatically generated questions for supporting computer-assisted language teaching
Authors: Chinkina Maria , Ruiz Simón , Meurers Detmar
Published: October 2019

How can state-of-the-art computational linguistic technology reduce the workload and increase the efficiency of language teachers? To address this question, we combine insights from research in second language acquisition and computational linguistics to automatically generate text-based questions to a given text. The questions are designed to draw the learner’s attention to target linguistic forms – phrasal verbs, in this particular case – by requiring them to use the forms or their paraphrases in the answer. Such questions help learners create form-meaning connections and are well suited for both practice and testing. We discuss the generation of a novel type of question combining a wh- question with a gapped sentence, and report the results of two crowdsourcing evaluation studies investigating how well automatically generated questions compare to those written by a language teacher. The first study compares our system output to gold standard human-written questions via crowdsourcing rating. An equivalence test shows that automatically generated questions are comparable to human-written ones. The second crowdsourcing study investigates two types of questions (wh- questions with and without a gapped sentence), their perceived quality, and the responses they elicit. Finally, we discuss the challenges and limitations of creating and evaluating question-generation systems for language learners.
The Immoral Machine
Authors: HARRIS JOHN
Published: October 2019

In a recent paper in Nature1 entitled The Moral Machine Experiment, Edmond Awad, et al. make a number of breathtakingly reckless assumptions, both about the decisionmaking capacities of current so-called “autonomous vehicles” and about the nature of morality and the law. Accepting their bizarre premise that the holy grail is to find out how to obtain cognizance of public morality and then program driverless vehicles accordingly, the following are the four steps to the Moral Machinists argument:

1)

Find out what “public morality” will prefer to see happen.

2)

On the basis of this discovery, claim both popular acceptance of the preferences and persuade would-be owners and manufacturers that the vehicles are programmed with the best solutions to any survival dilemmas they might face.

3)

Citizen agreement thus characterized is then presumed to deliver moral license for the chosen preferences.

4)

This yields “permission” to program vehicles to spare or condemn those outside the vehicles when their deaths will preserve vehicle and occupants.

This paper argues that the Moral Machine Experiment fails dramatically on all four counts.
‘A horizon of national economic opportunity’ – industrialization and crisis in 1970s Wilhelmshaven
Authors: Eiben Jörn
Published: October 2019

Scholars from various disciplines argue that the 1970s formed a historical watershed. Several arguments rely on the notion of a significant change in the modes of production, labour and consumption – a change usually coined as de-industrialization, which had severe economic, social and cultural repercussions on numerous cities. These repercussions are frequently phrased in semantics of crisis. The article will present an exemplary case that sits uneasily with this master narrative. Wilhelmshaven, a medium-sized city in north-west Germany, witnessed significant changes in the 1970s, too – but not away from, but towards industrialization, and throughout the industrializing phase, diagnoses of crisis played a major role in stabilizing the process. Analysing Wilhelmshaven's industrialization, which took place between the late 1960s and the mid-1980s, will shed light on two aspects: first, the effects industrialization had on the city's socio-economic structure; secondly, the effects different crises and their diagnosis had on the process. In doing so, the article will link perspectives from urban history with theoretical concepts of crisis and, thus, attempt to provoke a closer look at cities of the 1970s.
True flies (Insecta: Diptera) from the late Eocene insect limestone (Bembridge Marls) of the Isle of Wight, England, UK
Authors: KRZEMIŃSKI Wiesław , BLAGODEROV Vladimir , AZAR Dany , LUKASHEVICH Elena , SZADZIEWSKI Ryszard , WEDMANN Sonja , NEL André , COLLOMB François-Marie , WALLER Alain , NICHOLSON David B.
Published: October 2019

The Diptera fauna from the late Eocene of the Isle of Wight (Bembridge Marls) is studied including redescriptions of formerly described material. The fauna includes the following taxa: Anisopodidae – one species; Bibionidae – 11 species; Ceratopogonidae – one described and two unidentified species; Chironomidae – undetermined species of three subfamilies; Culicidae – four species; Cylindrotomidae – one species; Dixidae – one species; Keroplatidae – one described and four unidentified species; Limoniidae – 31 species; Mycetophilidae – 14 species; Psychodidae – two species; Scatopsidae – two species; Sciaridae – three species; Simuliidae – an unnamed species; Tipulidae – nine species. Diptera Brachycera: Agromyzidae – unidentified species; Anthomyzidae – two species; Asilidae – two species; Bombyliidae – one species; Chloropidae – one species; Dolichopodidae – unidentified species; Empididae – unidentified species; Ephydridae – two species; Heleomyzidae – unidentified species; Lauxaniidae – unidentified species; Otitidae – one species; Phoridae – unidentified species; Rhagionidae – two species; Stratiomyidae – two species; Syrphidae – unidentified species; Tabanidae – one species. Following new taxa are described:Leptotarsus(Longurio)fragmentatusKrzemiński, n. sp.,Leptotarsus(Longurio)wegierekiKrzemiński, n. sp.,Tipula(s. lato)anglicanaKrzemiński, n. sp. (Tipulidae);CyttaromyiarossiKrzemiński, n. sp. (Cylindrotomidae);Gurnardia coramiKrzemiński, n. gen, n. sp.,Pilaria hooleyiKrzemiński, n. sp.,Pilaria volodiiKrzemiński, n. sp.,Cheilotrichia (Cheilotrichia) duplicataKrzemiński, n. sp.,Cheilotrichia (Empeda) szwedoiKrzemiński, n. sp.,Symplecta (Psiloconopa) gurnetensisKrzemiński, n. sp.,Orimarga (Orimarga) lenaeKrzemiński, n. sp.,Dicranomyia (Dicranomyia) azariKrzemiński, n. sp.,Dicranomyia (Dicranomyia) fasciataKrzemiński, n. sp.,Helius (Helius) edmundiKrzemiński, n. sp.,Helius (Helius) popoviKrzemiński, n. sp.,Dicranoptycha staryiKrzemiński, n. sp. (Limoniidae);WightipsychodaAzar, n. gen. (Psychodidae);Dilophus andrewrossiNel, Colomb & Waller, n. sp.,Bibiodes massiliensisNel, Colomb & Waller, n. sp. (Bibionidae);Azana cockerelliBlagoderov, n. sp.,Aglaomyia vectisBlagoderov, n. sp.,Dziedzickia oligocenicaBlagoderov, n. sp.,Palaeoempalia saxeaBlagoderov, n. sp.,MycomyahooleiBlagoderov, n. sp.,Leia gurnardensisBlagoderov, n. sp. (Mycetophilidae);RegmocleminahaenniiKrzemiński, n. sp. (Scatopsidae);Sylvicola problematicaKrzemiński, n. sp. (Anisopodidae);Palaeoberidops barkeriNicholson,n. gen., n. sp. (Stratiomyidae). The Diptera fauna and palaeohabitat of the Insect Bed is discussed.
What Makes for Ethical Citizen Science Research?
Authors: Crowell Rachel
Published: October 2019

A new study explores questions of consent and coercion in citizen science.
Polarized near-infrared intersubband absorptions in CdSe colloidal quantum wells
Authors: Diroll Benjamin T. , Chen Menglu , Coropceanu Igor , Williams Kali R. , Talapin Dmitri V. , Guyot-Sionnest Philippe , Schaller Richard D.
Published: October 2019

Colloidal quantum wells are two-dimensional materials grown with atomically-precise thickness that dictates their electronic structure. Although intersubband absorption in epitaxial quantum wells is well-known, analogous observations in non-epitaxial two-dimensional materials are sparse. Here we show that CdSe nanoplatelet quantum wells have narrow (30–200 meV), polarized intersubband absorption features when photoexcited or under applied bias, which can be tuned by thickness across the near-infrared (NIR) spectral window (900–1600 nm) inclusive of important telecommunications wavelengths. By examination of the optical absorption and polarization-resolved measurements, the NIR absorptions are assigned to electron intersubband transitions. Under photoexcitation, the intersubband features display hot carrier and Auger recombination effects similar to excitonic absorptions. Sequenced two-color photoexcitation permits the sub-picosecond modulation of the carrier temperature in such colloidal quantum wells. This work suggests that colloidal quantum wells may be promising building blocks for NIR technologies.
Mouse embryo geometry drives formation of robust signaling gradients through receptor localization
Authors: Zhang Zhechun , Zwick Steven , Loew Ethan , Grimley Joshua S. , Ramanathan Sharad
Published: October 2019

Morphogen signals are essential for cell fate specification during embryogenesis. Some receptors that sense these morphogens are known to localize to only the apical or basolateral membrane of polarized cell lines in vitro. How such localization affects morphogen sensing and patterning in the developing embryo remains unknown. Here, we show that the formation of a robust BMP signaling gradient in the early mouse embryo depends on the restricted, basolateral localization of BMP receptors. The mis-localization of receptors to the apical membrane results in ectopic BMP signaling in the mouse epiblast in vivo. With evidence from mathematical modeling, human embryonic stem cells in vitro, and mouse embryos in vivo, we find that the geometric compartmentalization of BMP receptors and ligands creates a signaling gradient that is buffered against fluctuations. Our results demonstrate the importance of receptor localization and embryo geometry in shaping morphogen signaling during embryogenesis.
Distinct spectrum of microRNA expression in forensically relevant body fluids and probabilistic discriminant approach
Authors: Fujimoto Shuntaro , Manabe Sho , Morimoto Chie , Ozeki Munetaka , Hamano Yuya , Hirai Eriko , Kotani Hirokazu , Tamaki Keiji
Published: October 2019

MicroRNA is attracting worldwide attention as a new marker for the identification of forensically relevant body fluids. A probabilistic discriminant model was constructed to identify venous blood, saliva, semen, and vaginal secretion, based on microRNA expression assessed via RT-qPCR. We quantified 15 candidate microRNAs in four types of body fluids by RT-qPCR and found that miR-144-3p, miR-451a-5p, miR-888-5p, miR-891a-5p, miR-203a-3p, miR-223-3p and miR-1260b were helpful to discriminate body fluids. Using the relative expression of seven candidate microRNAs in each body fluid, we implemented a partial least squares-discriminant analysis (PLS-DA) as a probabilistic discriminant model and distinguished four types of body fluids. Of 14 testing samples, 13 samples were correctly identified with >90% posterior probability. We also investigated the effects of microRNA expression in skin, semen infertility, and vaginal secretion during different menstrual phases. Semen infertility and menstrual phases did not affect our body fluid identification system. Therefore, the selected microRNAs were effective in identifying the four types of body fluids, indicating that probabilistic evaluation may be practical in forensic casework.
Self-motion perception is sensitized in vestibular migraine: pathophysiologic and clinical implications
Authors: King Susan , Priesol Adrian J. , Davidi Shmuel E. , Merfeld Daniel M. , Ehtemam Farzad , Lewis Richard F.
Published: October 2019

Vestibular migraine (VM) is the most common cause of spontaneous vertigo but remains poorly understood. We investigated the hypothesis that central vestibular pathways are sensitized in VM by measuring self-motion perceptual thresholds in patients and control subjects and by characterizing the vestibulo-ocular reflex (VOR) and vestibular and headache symptom severity. VM patients were abnormally sensitive to roll tilt, which co-modulates semicircular canal and otolith organ activity, but not to motions that activate the canals or otolith organs in isolation, implying sensitization of canal-otolith integration. When tilt thresholds were considered together with vestibular symptom severity or VOR dynamics, VM patients segregated into two clusters. Thresholds in one cluster correlated positively with symptoms and with the VOR time constant; thresholds in the second cluster were uniformly low and independent of symptoms and the time constant. The VM threshold abnormality showed a frequency-dependence that paralleled the brain stem velocity storage mechanism. These results support a pathogenic model where vestibular symptoms emanate from the vestibular nuclei, which are sensitized by migraine-related brainstem regions and simultaneously suppressed by inhibitory feedback from the cerebellar nodulus and uvula, the site of canal-otolith integration. This conceptual framework elucidates VM pathophysiology and could potentially facilitate its diagnosis and treatment.
Expression and gene regulation network of INHBA in Head and neck squamous cell carcinoma based on data mining
Authors: Wu Zeng-hong , Tang Yun , Niu Xun , Cheng Qing
Published: October 2019

Inhibin subunit beta A(INHBA) encodes an individual from the TGF-β superfamily of proteins and the ligand could be further homo-dimerized to shape activin A or hetero-dimerized to frame inhibin with inhibin beta B. We studied INHBA expression, mutations, regulation, function networks and immune infiltrates in data from patients with Head and neck squamous cell carcinoma (HNSCC) based on different open databases by utilizing multi-dimensional investigation techniques. This study gives staggered evidence for the significance of INHBA in head and neck squamous cell carcinoma and its potential role as a novel biomarker. Our outcomes propose that INHBA overexpression in HNSCC has profound impacts in the center hub of post-transcriptional regulation, which is firmly identified with protein translation. Meanwhile, we also examine the function of the identified miRNAs that were related to INHBA and molecular function of these miRNAs were mainly enhanced in transcription factor activity, transcription regulator activity. In addition, B cells of immune infiltrates affecting the prognosis and might have a prognostic significance related to INHBA in HNSCC. Our outcomes show that data mining efficiently uncovers information about INHBA expression in HNSCC and more importance establishing a foundation for further investigation of the role of INHBA in carcinogenesis.
Life-history traits of the spiny dogfish Squalus acanthias in the Adriatic Sea
Authors: Bargione Giada , Donato Fortunata , La Mesa Mario , Mazzoldi Carlotta , Riginella Emilio , Vasapollo Claudio , Virgili Massimo , Lucchetti Alessandro
Published: October 2019

Pivotal life history traits concerning age structure and reproduction of the spiny dogfish (Squalus acanthias, Linnaeus 1758) were investigated in the Adriatic Sea from mid February 2012 to mid July 2013 and in 2016. The whole sample consisted of 176 females and 150 males, ranging between 217–1025 mm and 219–875 mm, respectively. The individual age, which was estimated using a cross-sectioning technique of the second dorsal-fin spine, ranged from 0 to 13+ years for females and from 0 to 9+ years for males. Based on the length-at-age estimates, the Gompertz growth parameters were L∞ = 1130 mm, k = 0.18 and L∞ = 920 mm, k = 0.24 for females and males, respectively. The size at sexual maturity (L50) was 659 mm for females and 575 mm for males, corresponding to 7.5 and 5.5 years of age (A50), respectively. Mean biennial fecundity was approximately 11 embryos/female and 12 ripe oocytes/female. Mature males occurred during much of the sampling period, while mature females with nearly full-term embryos were exclusively recorded in May 2013 and July 2016. Monitoring of catches conducted in a sample port of the north Adriatic (Chioggia) over the past 20 years has shown fluctuating trends in landings, with peaks during the summer reproductive season.
Sensitive detection of polycyclic aromatic hydrocarbons with gold colloid coupled chloride ion SERS sensor
Authors: Gong Xuegang , Liao Xiaoyong , Li You , Cao Hongying , Zhao Yishu , Li Haonan , Cassidy Daniel P.
Published: October 2019

Highly sensitive detection of PAH by non-functionally modified gold colloid was realized by chloride ion coupling.
Measuring the apparent viscosities of single cells by tracking the entire deformation dynamics in microfluidic channels
Authors: Yuan Wei-Mo , Xiang Cheng , Xue Chun-Dong , Liu Bo , Qin Kai-Rong
Published: October 2019

Cellular mechanical properties are promising biomarkers to indicate the disease states of patients. A quantitative method coupled with microfluidic chip was proposed to measure the apparent viscosities of single cells.
Ultrasonication-promoted synthesis of luminescent sulfur nano-dots for cellular imaging applications
Authors: Zhang Chuanchuan , Zhang Peng , Ji Xiaojing , Wang Henggang , Kuang Haizhu , Cao Weiling , Pan Mingyue , Shi Yu-e , Wang Zhenguang
Published: October 2019

An ultrasonication-promoted strategy was proposed to synthesize luminescent sulfur nanodots, reducing the synthesis time from 5 days to several hours.
Advances in helicene derivatives with circularly polarized luminescence
Authors: Zhao Wen-Long , Li Meng , Lu Hai-Yan , Chen Chuan-Feng
Published: October 2019

This review summarizes the recent research progress of helicenes and their derivatives with circularly polarized luminescence properties.
Formation of large clusters of CO2around anions: DFT study reveals cooperative CO2adsorption
Authors: Anila Sebastian , Suresh Cherumuttathu H.
Published: October 2019

The cooperative O⋯C secondary interactions compensate for the diminishing effect of primary anion⋯C interactions in anionic clusters of CO2molecules.
Thermoelectric power factor of pure and doped ZnSbviaDFT based defect calculations
Authors: Berche Alexandre , Jund Philippe
Published: October 2019

Ways to improve the thermoelectric properties of p and n-type zinc antimonide.
Cross-linked polyfuran networks with elastomeric behaviour based on humins biorefinery by-products
Authors: Dinu Roxana , Mija Alice
Published: October 2019

A scheme of development of rigid and elastic materials with a biobased carbon content >54% from humins biorefinery by-products.
Strength of bacterial adhesion on nanostructured surfaces quantified by substrate morphometry
Authors: Spengler Christian , Nolle Friederike , Mischo Johannes , Faidt Thomas , Grandthyll Samuel , Thewes Nicolas , Koch Marcus , Müller Frank , Bischoff Markus , Klatt Michael Andreas , Jacobs Karin
Published: October 2019

Bacterial adhesion to nanostructured surfaces can be quantified by surface morphometry: the surface area that is accessible in a certain depth for tethering cell wall molecules equals the fraction of adhesion force as compared to a smooth surface.
Heat generation by branched Au/Pd nanocrystals: influence of morphology and composition
Authors: Quintanilla Marta , Kuttner Christian , Smith Joshua D. , Seifert Andreas , Skrabalak Sara E. , Liz-Marzán Luis M.
Published: October 2019

The heating ability of bimetallic octopods strongly depends on their size, branch dimensions and gold-palladium ratio.
Single molecule force spectroscopy reveals that the oxidation state of cobalt ions plays an important role in enhancing the mechanical stability of proteins
Authors: Xia Jiahao , Zuo Jiacheng , Li Hongbin
Published: October 2019

The binding of Co(iii) to the bi-histidine metal chelation site significantly enhances protein's mechanical stability.
An optical sensor for discriminating the chemical compositions and sizes of plastic particles in water based on water-soluble networks consisting of polyhedral oligomeric silsesquioxane presenting dual-color luminescence
Authors: Nakamura Ryota , Narikiyo Hayato , Gon Masayuki , Tanaka Kazuo , Chujo Yoshiki
Published: October 2019

Luminescent water-soluble networks containing coumarin were prepared using polyhedral oligomeric silsesquioxane (POSS) as a cross-linker, and plastic particles in water can be detected by luminescent color change.
Realizing high-efficiency Multiple blend polymer solar cells via a unique parallel-series working mechanism
Authors: Xu Xiaopeng , Deng Min , Lee Young Woong , Woo Han Young , Zou Xinhui , Jiang Yu , Yu Liyang , Li Ying , Peng Qiang
Published: October 2019

A triple-acceptor polymer solar cell in parallel-series connection, combining the broad spectrum coverage of the parallel connected ternary blends, delivered a top power conversion efficiency of 15.12%.
Orbital and spectral analysis of the benchmark brown dwarf HD 4747B
Authors: Peretti S. , Ségransan D. , Lavie B. , Desidera S. , Maire A.-L. , D’Orazi V. , Vigan A. , Baudino J.-L. , Cheetham A. , Janson M. , Chauvin G. , Hagelberg J. , Menard F. , Heng Kevin , Udry S. , Boccaletti A. , Daemgen S. , Le Coroller H. , Mesa D. , Rouan D. , Samland M. , Schmidt T. , Zurlo A. , Bonnefoy M. , Feldt M. , Gratton R. , Lagrange A.-M. , Langlois M. , Meyer M. , Carbillet M. , Carle M. , De Caprio V. , Gluck L. , Hugot E. , Magnard Y. , Moulin T. , Pavlov A. , Pragt J. , Rabou P. , Ramos J. , Rousset G. , Sevin A. , Soenke C. , Stadler E. , Weber L. , Wildi F.
Published: October 2019

Context. The study of high-contrast imaged brown dwarfs and exoplanets depends strongly on evolutionary models. To estimate the mass of a directly imaged substellar object, its extracted photometry or spectrum is used and adjusted with model spectra together with the estimated age of the system. These models still need to be properly tested and constrained. HD 4747B is a brown dwarf close to the H burning mass limit, orbiting a nearby (d = 19.25 ± 0.58 pc), solar-type star (G9V); it has been observed with the radial velocity method for over almost two decades. Its companion was also recently detected by direct imaging, allowing a complete study of this particular object.

Aims. We aim to fully characterize HD 4747B by combining a well-constrained dynamical mass and a study of its observed spectral features in order to test evolutionary models for substellar objects and to characterize its atmosphere.

Methods. We combined the radial velocity measurements of High Resolution Echelle Spectrometer (HIRES) and CORALIE taken over two decades and high-contrast imaging of several epochs from NACO, NIRC2, and SPHERE to obtain a dynamical mass. From the SPHERE data we obtained a low-resolution spectrum of the companion from Y to H band, and two narrow band-width photometric measurements in the K band. A study of the primary star also allowed us to constrain the age of the system and its distance.

Results. Thanks to the new SPHERE epoch and NACO archival data combined with previous imaging data and high-precision radial velocity measurements, we were able to derive a well-constrained orbit. The high eccentricity (e = 0.7362 ± 0.0025) of HD 4747B is confirmed, and the inclination and the semi-major axis are derived (i = 47.3 ± 1.6°, a = 10.01 ± 0.21 au). We derive a dynamical mass of mB = 70.0 ± 1.6 MJup, which is higher than a previous study but in better agreement with the models. By comparing the object with known brown dwarfs spectra, we derive a spectral type of L9 and an effective temperature of 1350 ± 50 K. With a retrieval analysis we constrain the oxygen and carbon abundances and compare them with the values from the HR 8799 planets.
Multi-season optical modulation phased with the orbit of the super-Earth 55 Cancri e
Authors: Sulis S. , Dragomir D. , Lendl M. , Bourrier V. , Demory B. O. , Fossati L. , Cubillos P. E. , Guenther D. B. , Kane S. R. , Kuschnig R. , Matthews J. M. , Moffat A. F. J. , Rowe J. F. , Sasselov D. , Weiss W. W. , Winn J. N.
Published: October 2019

Context. 55 Cnc e is a transiting super-Earth orbiting a solar-like star with an orbital period of ~17.7 h. In 2011, using the Microvariability and Oscillations in Stars (MOST) space telescope, a quasi-sinusoidal modulation in flux was detected with the same period as the planetary orbit. The amplitude of this modulation was too large to be explained as the change in light reflected or emitted by the planet.

Aims. The MOST telescope continued to observe 55 Cnc e for a few weeks per year over five years (from 2011 to 2015), covering 143 individual transits. This paper presents the analysis of the observed phase modulation throughout these observations and a search for the secondary eclipse of the planet.

Methods. The most important source of systematic noise in MOST data is due to stray-light reflected from the Earth, which is modulated with both the orbital period of the satellite (101.4 min) and the Earth’s rotation period. We present a new technique to deal with this source of noise, which we combined with standard detrending procedures for MOST data. We then performed Markov chain Monte Carlo analyses of the detrended light curves, modeling the planetary transit and phase modulation.

Results. We find phase modulations similar to those seen in 2011 in most of the subsequent years; however, the amplitude and phase of maximum light are seen to vary, from year to year, from 113 to 28 ppm and from 0.1 to 3.8 rad. The secondary eclipse is not detected, but we constrain the geometric albedo of the planet to less than 0.47 (2σ).

Conclusions. While we cannot identify a single origin of the observed optical modulation, we propose a few possible scenarios. Those include star-planet interaction, such as coronal rains and spots rotating with the motion of the planet along its orbit, or the presence of a transiting circumstellar torus of dust. However, a detailed interpretation of these observations is limited by their photometric precision. Additional observations at optical wavelengths could measure the variations at higher precision, contribute to uncovering the underlying physical processes, and measure or improve the upper limit on the albedo of the planet.
The nomogram establishment of thermal conductivity and strength of insulating concrete for high temperature mine
Authors: Wang Hongwei , Zhang Shuguang
Published: October 2019

The insulating concrete can be effectively reduced heat exchange between surrounding rock and ventilation air, which is of positive significance to mine cooling and energy conservation. The law of the mixing amount of insulation material on thermal conductivity and strength was discovered through testing 75 specimens of insulating concrete used for mine. Based on new effective medium theory, calculation model of coefficient of heat conductivity is deduced, and its parameters are acquired with the surface regression analysis method, then the mixing threshold of insulation material is determined. The resulting experimental data and calculational results make up data sample, and then the nomogram of thermal conductivity and strength of insulating concrete is plotted. The nomogram curve can be divided into regions with the main intensity and heat insulation as the auxiliary, the mutual influence region and the main intensity and heat insulation as the auxiliary. The constructed nomogram would not only provide the basis for determining porosity of compound concrete, but also determine thermal conductivity and strength according to porosity. It can simplify calculation step for the engineering and technical staffs, and help to guide design of insulating concrete.
Preparation of Ag-Fe3O4 nanoparticles sensor and application in detection of methomyl
Authors: Gai Ke , Qi Huili , Zhu Xiulan , Wang Mingye
Published: October 2019

Ag-doped Fe3O4 nanoparticles (Ag-Fe3O4) was successfully synthesized by the hydrothermal method and performed a simple chemical reaction process in a significantly shorter time than traditional solvothermal method. Furthermore, Ag-Fe3O4 electrochemical sensor was prepared using chitosan and acetic acid as crosslinkers, and the electrochemical behavior of methomyl on the electrode was studied by cyclic voltammetry. Experimental results showed that the electrode had faster response, higher detection sensitivity and better stability for methomyl. Under optimal conditions, the linear current response was achieved in the concentration range of 2.97×10-5 mol·L-1～3.47×10-4 mol·L-1, with the detection limit of 2.08×10-5 mol·L-1. The methomyl in different vegetable samples was detected, and its recovery rate was between 90%～98%.
Temperature Prediction of Power Cable Joint Based on LS-SVM Optimized by PSO
Authors: He Bang-Le
Published: October 2019

The temperature of high-voltage cable has a great significance to reflect the operation status, and the accurate prediction of the joint temperature can improve the safe operating level of the wire. This paper points out a temperature prediction model based on least squares support vector machine (LS-SVM) to forecast short-term cable joint temperature. This paper also conducts a test on a Shanghai 110kV cable line with its joint’s history temperature, environmental temperature and humidity, the wire core/sheath current ratio data, and the particle swarm optimization algorithm (PSO) can be adapted to optimize model parameter standardization and regularization parameter dynamically. The results prove that method can predict the temperature of cable joint with high prediction accuracy and also provide a reliable basis for cable temperature detection and early warning system.
Generalized Building Energy Efficiency and New Energy Utilization
Authors: Yang Li , Sun Piman
Published: October 2019

The development of human society is a non-stop gear, and the way we use energy is about the future. How to use resources reasonably and effectively is the pressure we face. The increase in population is the problem of resource allocation—insufficient inventory of traditional energy sources. Economic development is a double-sided blade, and ecological environmental protection is our focus. Research and development of new energy and renewable energy is a way to block dependence on traditional energy sources. It is the inevitable way for human beings to coexist harmoniously with ecology in the future. The development of the construction industry has also brought about a greater proportion of energy consumption. Building heating, ventilation, air conditioning and lighting account for about one-third of the total energy consumption. The carbon dioxide emissions of the construction industry account for more than half of the total emissions, which has a great impact on the environment. The broad definition of building energy conservation is proposed, and the significance of using new energy to building energy conservation is expanded from the perspective of macro environment, including the use of integrated energy, solar energy, and energy islands to achieve zero energy consumption in building energy conservation. The construction has effectively promoted the development of zero energy consumption in terms of the life cycle and environmental protection.
Research on optimization of development technology policy for low-permeability and low-pressure reservoir in Yangbaishan Block
Authors: Zhu Xiulan , Ran Yanlong , Yuan Yidong
Published: October 2019

There are poor physical properties and insufficient natural energy in the low-permeability and low-pressure reservoir of the Yangbaishan Block. Early this reservoir was mined by natural energy with a serious producing energy deficit. Subsequently, it was developed with mild water injection. During the water injection development, water quickly slid into the oil well along the crack, oil production decreased sharply and water content increased rapidly in the oil well, the water flooded well and the ineffective well gradually increased. Therefore, based on the reservoir geological characteristics, principle of injection and production balance is used to optimize reasonably for the development technology policy. Research indicates that the square inverted nine spot flooding pattern is recommended with a reasonable injection well direction of NE 72°and technical well spacing of 150 m. Reasonable injection-production ratio should be 2.16, reasonable technical well pattern density is 23 wells per square kilometer, and the average daily water injection rate of single well should be 11 m3. When injection-production system and injection proration are improved, water drive controlled degree is expected to increase by 16 %. This research can provide reference for the efficient development and safety management of other similar reservoirs.
Flexible solid supercapacitor, based on reduction oxidized graphene polymerization (3, 4-ethylenedioxythiophene)
Authors: Liu Zhigang , Su Dongyun , Ding Jie , Ma Jun
Published: October 2019

In this case, RGO (graphene reduced load) aggregates (3, 4-ethylenedioxythiophene) were used to prepare basic films by chemical deposition method. Optimize electrochemical deposition (3, 4-ethylene dioxide) and rGO voltage Windows and electrolytes. SEM observation confirmed that PEDOT/rGO did synthesize the necessary composites. Electrochemical tests showed that the electrochemical performance of PEDOT electrode was improved by adding rGO. The mixed PEDOT/rGO electrode has a high specific capacitance (134 F/g, 0.8 mA/cm2).
Imidazole-containing Cd Metal-Organic Framework with Selective Adsorption Properties
Authors: Li Yu-Ling , Zheng Zin , Nie Hui , Zhao Chun-Mei , Wang Yu-Fei , Li Jing-Jing , Zhou Xiao-Li , Zhang Jia-Hui
Published: October 2019

Metal-organic framework material [Cd(tib)(dnbpdc) (H2O)]·2DMF·2H2O (1) [tib = 1, 3, 5-tris(1-imidazolyl)benzene, H2dnbpdc = 2, 2′-dinitro-4, 4′-biphenyldicarboxylic acid] was synthesized and characterized by Thermogravimetric analyses (TGA), Powder X-ray diffraction (PXRD) analyses and Bruker D8 Advance X-ray diffractometer. The results showed that 1 was a 1D chain structure to be joined together by hydrogen bonds to generate a 3D supramolecular structure. CO2 and N2 adsorption behavior of the material was studied. It is significative that 1 can selective sorption of CO2.
Combining theory and experiment analysis in molten BFS waste heat recovery integrated with coal gasification
Authors: Duan Wenjun , Gao Yunke , Yu Qingbo , Wang Zhimei
Published: October 2019

A novel method that a heat recovery system from blast furnace slag integrated with coal gasification reaction to generate syngas was proposed. The motion characteristic and critical velocity of the coal particles in the molten slag were estimated. Meanwhile, the effects of temperature and steam to coal ratio on coal gasification product distribution and gas characterization were discussed. The results showed that the coal particles (~75 μm) would break through the bondage of bubbles and transport into molten slag when the velocity of coal particles were above 4.20 m·s-1 and the diameter of bubbles were less 6 mm. There had higher gasification efficiency, gas yield production and H2 production by this method. The results suggested that the optimal conditions for slag waste heat recovery were achieved at 1623 K and steam to coal ratio of 2.0. Under these conditions, the gas yield and carbon conversion reached 133.48 mol·kg-1 and 97.81%, respectively. The proposed method enhanced the coal gasification efficiency and recovered the high quality of molten blast furnace slag waste heat effectively, and had important guidance for industrial manufacture.
Technology of CO2 capture and storage
Authors: Liu Yudong , Ren Guizhou , Shen Honghong , Liu Gang , Li Fangqin
Published: October 2019

This paper studies carbon capture and storage based on carbon emission. There are three main technical routes for CO2 emission reduction: pre-combustion capture, oxygen-rich combustion, and post-combustion capture; CO2 separation technology mainly includes: chemical absorption method, solid adsorption method, membrane separation method. CO2 capture needs to be transported to a special place for storage, which can be generally divided into geological storage, marine storage and chemical storage. Future carbon capture research will focus on cost savings and energy savings.
Risk Analysis of Philippine Power Engineering Project in EPC Mode :Take S Company’s D Project in the Philippines as an Example
Authors: Fenyu Zeng , Shi Guoping , Zhang Di , Matira Yvonne Pauline
Published: October 2019

Since the “One Belt And One Road” initiative, EPC general contracting mode has become the main contracting mode for China’s power construction enterprises to undertake overseas projects. It not only requires the general contractor to have strong design and construction capacity, but also strong risk control ability. Taking the D project of S company in the Philippines as an example, this paper combines the characteristics of EPC mode with the actual project, analyses the main risks existing in the project construction process from the perspective of power enterprises, and puts forward countermeasures and relevant suggestions to deal with the risks.
The Grindability of Biochars from Agroforestry Biomass Prepared under Different Torrefied Conditions
Authors: Jiang Hewei , Ye Yangtian , Lu Ping
Published: October 2019

The torrefaction experiments of four biomass including agricultural biomass (corn straw (CS) and wheat straw (WS)) and forestry biomass (polar wood (PW) and cedar wood (CW)) were carried out in a fixed bed reactor at torrefaction temperature of 200-300°C and holding time of 10-60min, the effects of torrefaction temperature and holding time on biochar grindability based on the component analysis and the particle size distribution of ground biomass and biochars. The obtained results indicated that the mass fraction of ground biochar with particle size less than 150 μm increases with increasing torrefaction temperature, and the mass fraction of ground biochar with particle size less than 150 μm achieves 100%. The larger the λC, the better the grindability of biochar. The correlation between the grindability of the woody biochar and the λC is not as good as that of the straw biochar. The grindability of corn straw biochar and cedar wood biochar is improved with the increase of holding time at the same torrefaction temperature, however, the grindability of wheat straw biochar and polar wood biochar gets a little change, which can keep good grindability at higher torrefaction temperature large than 275°C.
Bus Load Decomposition Method Based on Deep Learning
Authors: Qian Tiantian , Wang ke , Shi Fei , Li Gang , Xu Lizhong
Published: October 2019

The current research work is mainly based on the decomposition of the total load of the family house into the electrical level load, and less research on the bus load of the high voltage level. To solve this problem, in this paper, a bus load composition decomposition algorithm based on Bi-directional Long Short-Term Memory (Bi-LSTM) is proposed. The experimental results show that this method can effectively identify the bus load with unknown components. Compared with the traditional recurrent neural network and long-term and short-term memory network, the proposed algorithm has better identification ability.
Research on Operation Benefit Evaluation of Power Network Project Based on Combination Weighting Method
Authors: Peng Dong , Xue Yawei , Li Tianzhi , Wang Lina , Li Jinchao
Published: October 2019

Firstly, on the basis of economic efficiency, equipment and operational safety, public interest and other dimensions, this paper constructs an evaluation index system for operational benefit of power grid projects, and then a combined weighting method based on Analytic Network Process (ANP) and entropy weight method is established. Finally, an empirical study is carried out based on the actual data of power grid projects, and the research results prove the effectiveness of the model.
Analysis Of Multi-energy Complementary Integration Optimization Technology
Authors: He Xiaohong , Zheng Lijun
Published: October 2019

This paper studies ways to improve the capacity of renewable energy to reduce the adverse effects of renewable energy generation on the power grid system, improve energy efficiency, and implement comprehensive complementary utilization of multiple energy sources. According to different resource conditions and energy demands, the multi-energy complementary systems are constructed through comprehensive energy management and collaborative optimization control. On the basis of summarizing the technical routes of multi-energy complementary system at home and abroad, the key technologies of multi-energy complementary were discussed, including various power characteristics, complementary ways and future research directions. It provides a reference for the development and application of multi-energy complementary system
Study on reasonable grouting parameters based on UDEC numerical simulation
Authors: Yang Fengfeng , Bai Liping , Su Ruiqing , Zhang Jufeng , Xu Tai , Zheng Chao , Zhu Xiulan , Chen Jing
Published: October 2019

In view of the frequent occurrence of roof collapse and chipping accidents in the broken surrounding rock roadway in the goaf, grouting reinforcement is applied to the surrounding rock of the ro ent ratio. The field test proves that the selected grouting parameters are reasonable and achieve the purpose of controlling the deformation of the surrounding rock of the roadway.
Low cost of sustainable work and maintenance for offshore wind power speed-increasing device
Authors: Wang Fei , Sun Shijie
Published: October 2019

For the problem of wind turbine outage caused by the failure of wind power transmission devices, we proposed an offshore wind power transmission device with low sustainable operation and low maintenance cost. Through the combination of gearbox A and B, the power transmission of the offshore wind turbine is uninterrupted, and the continuous operation of grid-connected power generation enhances the economic benefits of offshore wind turbines. The maritime maintenance man-hours is reduced by moving the speed increase gearbox A from the offshore wind turbine site to the land for maintenance inspection, and the maintenance cost is significantly reduced.
Emission Character Study on temperature Combustion Performance of Electronic Controlled Diesel Engine Mixed with Butanol
Authors: Hu Deng , Huang Zhaoxia , Huang Jialiang , Deng Tao , Ye Zi Xiao , Fan Jinyu
Published: October 2019

In this paper, through the electromechanical control modification of 4190 ZLC-2 diesel, the electronic fuel injection model is established by AMESim simulation software, and the high pressure circulation model of butanol/diesel dual fuel engine is established by AVL-FIRE software, the appropriate initial parameters module and corresponding boundary conditions are set. At the condition of low-temperature combustion through exhaust gas recirculation (EGR), in the optimization scheme studying the influence of butan blending ratio and EGR rate on diesel engine emissions. The result shows that the addition of butanol can improve the low temperature combustion, reducing the formation of CO and soot. The introduction of EGR can achieve low temperature combustion and significantly reduce NO emissions. The optimal parameter set for parameter matching is obtained: B20/EGR12.5 %.