bluuebunny/crossref_metadata_2025 huggingface dataset:
Spin-crossover in iron(ii)-Schiff base complexes
Authors: Senthil Kumar Kuppusamy , Bayeh Yosef , Gebretsadik Tesfay , Elemo Fikre , Gebrezgiabher Mamo , Thomas Madhu , Ruben Mario
Published: August 2019

A collective overview of iron(ii)-Schiff base complexes, showing abrupt and hysteretic SCO suitable for device applications, and the structure–property relationships governing the SCO of the complexes in the solid-state is presented.
Highly soluble fluorine containing Cu(i) AlkylPyrPhos TADF complexes
Authors: Busch Jasmin M. , Zink Daniel M. , Di Martino-Fumo Patrick , Rehak Florian R. , Boden Pit , Steiger Sophie , Fuhr Olaf , Nieger Martin , Klopper Wim , Gerhards Markus , Bräse Stefan
Published: August 2019

Newly luminescent Cu(i) AlkylPyrPhos complexes with a special focus on fluorine have been synthesized and comprehensively investigated by a variety of spectroscopic and theoretical methods.
BODIPY-functionalized 1,10-phenanthroline as a long wavelength sensitizer for near-infrared emission of the ytterbium(iii) ion
Authors: Kukoyi Adedayo , Micheli Eric A. , Liu Beibei , He Hongshan , May P. Stanley
Published: August 2019

Two BODIPY (4,4-difluoro-4-bora-3a,4a-diaza-s-indacene) moieties were chemically appended to the 4,7-positions of 1,10-phenanhtroline for sensitizing near-infrared emission of ytterbium(iii) ion.
Reactions of cerium complexes with transition metal nitrides: synthesis and structure of heterometallic cerium complexes containing bridging catecholate ligands
Authors: Cheung Wai-Man , Au-Yeung Ka-Chun , Wong Kai-Hong , So Yat-Ming , Sung Herman H. Y. , Williams Ian D. , Leung Wa-Hung
Published: August 2019

Heterometallic cerium complexes containing bridging catecholate ligands have been synthesized from cerium complexes with Kläui's tripodal ligand and metal catecholates.
Oligomerization of phosphaalkynes mediated by bulky N-heterocyclic carbenes: avenues to novel phosphorus frameworks
Authors: Liu Liu Leo , Zhou Jiliang , Kim Youngsuk , Cao Levy L. , Stephan Douglas W.
Published: August 2019

Reactions of RCP (R =tBu or Ad (admantyl)) with NHCs (SIMes,1a; IMes,1band IDipp,1d), leading to 1,2,3-triphosphetenes2and3, a triphosphole4, and a di-1,2-dihydro-1,2-diphosphete-substituted diphosphene5, are reported.
Spectroscopic identification of monomeric methyl metaphosphate
Authors: Zhao Xiaofang , Song Chao , Hong Kemiao , Xu Xinfang , Chen Changyun , Chu Xianxu , Zeng Xiaoqing
Published: August 2019

A highly elusive and electrophilic monomeric methyl metaphosphate, CH3OPO2, has been generated and spectroscopically characterized.
A multi-objective optimization-based layer-by-layer blade-coating approach for organic solar cells: rational control of vertical stratification for high performance
Authors: Sun Rui , Guo Jie , Wu Qiang , Zhang Zhuohan , Yang Wenyan , Guo Jing , Shi Mumin , Zhang Yaohong , Kahmann Simon , Ye Long , Jiao Xuechen , Loi Maria A. , Shen Qing , Ade Harald , Tang Weihua , Brabec Christoph J. , Min Jie
Published: August 2019

This article analyzes and discusses a multi-objective optimization-based layer-by-layer blade-coating approach, which provides a new technology choice for large-scale manufacturing of organic solar cells.
Metabolic effects of α-lipoic acid supplementation in pre-diabetics: a randomized, placebo-controlled pilot study
Authors: Gosselin Luc E. , Chrapowitzky Lauren , Rideout Todd C.
Published: August 2019

α-Lipoic acid supplementation may improve insulin sensitivity in pre-diabetic subjects but is not effective in modulating serum lipids.
Collagen peptides promote photoaging skin cell repair by activating the TGF-β/Smad pathway and depressing collagen degradation
Authors: Liu Zehua , Li Yuqi , Song Hongdong , He Juan , Li Ge , Zheng Yayao , Li Bo
Published: August 2019

Collagen hydrolysate has been widely used as a nutraceutical agent against skin aging and has gained increasing attention.
Extruded whole buckwheat noodles: effects of processing variables on the degree of starch gelatinization, changes of nutritional components, cooking characteristics and in vitro starch digestibility
Authors: Sun Xuyang , Yu Chen , Fu Meixia , Wu Di , Gao Chengcheng , Feng Xiao , Cheng Weiwei , Shen Xinchun , Tang Xiaozhi
Published: August 2019

The effects of processing variables on the degree of gelatinization (DG), changes of nutritional components, cooking characteristics and in vitro starch digestibility of extruded whole buckwheat noodles were investigated.
Salvianolic acid B (Sal B) alleviates the decreased activity induced by prednisolone acetate on osteoblasts by up-regulation of bone formation and differentiation genes
Authors: Qiao Jiutao , Liu Aiyun , Liu Jianyu , Guan Dehong , Chen Tianxin
Published: August 2019

Sal B could promote bone formation and help protect against bone loss caused by prednisolone acetate treatment.
2,3,5,4′-Tetrahydroxystilbene-2-O-β-d-glucoside attenuates MPP+/MPTP-induced neurotoxicityin vitroandin vivoby restoring the BDNF-TrkB and FGF2-Akt signaling axis and inhibition of apoptosis
Authors: Yu Yun , Lang Xiu-Yuan , Li Xi-Xi , Gu Run-Ze , Liu Qing-Shan , Lan Rongfeng , Qin Xiao-Yan
Published: August 2019

2,3,5,4′-Tetrahydroxystilbene-2-O-β-d-glucoside (THSG) affords neuroprotective effects against MPP+-induced neurotoxicityin vitroandin vivoby restoring the BDNF-TrkB and FGF2-Akt signaling axis to inhibit apoptosis and promote cell survival.
α-Glucosidase inhibitors: consistency of in silico docking data with in vitro inhibitory data and inhibitory effect prediction of quercetin derivatives
Authors: Zhu Jianzhong , Zhang Bin , Tan Chinping , Huang Qiang
Published: August 2019

The relationship between in silico and in vitro experiments regarding the inhibitory effects of polyphenols on α-glucosidase was investigated.
Effect of a multi-frequency counter-current S-type ultrasound pretreatment on the defatted corn germ protein: enzymatic hydrolysis, ACE inhibitory activity and structural characterization
Authors: Musa Abubakr , Gasmalla Mohammed A. A. , Ma Haile , Sarpong Frederick , Wali Asif , Awad Faisal N. , Duan Yuqing
Published: August 2019

The effect of low-frequency ultrasound pretreatments on the properties and structure of the defatted corn germ protein (DCGP) are investigated.
Co-catalysis over a tri-functional ligand modified Pd-catalyst for hydroxycarbonylation of terminal alkynes towards α,β-unsaturated carboxylic acids
Authors: Yang Da , Liu Huan , Liu Lei , Guo Wen-Di , Lu Yong , Liu Ye
Published: August 2019

An amphiphilic tri-functional ligand (L1) containing a phosphonium cation, a phosphino-fragment and a hydrophilic sulfonate anion enabled Pd(OAc)2 to co-catalyze hydroxycarbonylation of terminal alkynes towards α,β-unsaturated carboxylic acids.
Micropatterned biofunctional lubricant-infused surfaces promote selective localized cell adhesion and patterning
Authors: Imani Sara M. , Badv Maryam , Shakeri Amid , Yousefi Hanie , Yip Darren , Fine Claire , Didar Tohid F.
Published: August 2019

Micropatterned lubricant-infused biofunctional surfaces exhibit biofunctionality and omniphobicity simultaneously which leads to targeted cell attachment and alignment, both in surfaces and in microfluidic devices.
BIM-46174 fragments as potential ligands of G proteins
Authors: Küppers Jim , Benkel Tobias , Annala Suvi , Schnakenburg Gregor , Kostenis Evi , Gütschow Michael
Published: August 2019

Fragments of BIM-46174 were synthesized and investigated as Gαq inhibitors.
Understanding the role of electrons in the magnetism of a colossal permittivity dielectric material
Authors: Berlie Adam , Terry Ian , Cottrell Stephen P. , Hu Wanbiao , Liu Yun
Published: August 2019

Evidence for magnetic order at room temperature in a colossal permittivity dielectric indicates a potential for the development of magneto-electronic devices.
High-performance ultra-violet phototransistors based on CVT-grown high quality SnS2flakes
Authors: Ying Haoting , Li Xin , Wu Yutong , Yao Yi , Xi Junhua , Su Weitao , Jin Chengchao , Xu Minxuan , He Zhiwei , Zhang Qi
Published: August 2019

High-performance UV photodetectors established on CVT-grown SnS2flakes provide an efficient way to choose 2D crystals with an optimal thickness.
Facile synthesis of silver-rich Au/Ag bimetallic nanoparticles with highly active SERS properties
Authors: Tian Shu , You Wenjing , Shen Yi , Gu Xuefang , Ge Ming , Ahmadi Soha , Ahmad Syed , Kraatz Heinz-Bernhard
Published: August 2019

A one-pot route to the synthesis of Au/Ag bimetallic nanoparticles with a high SERS activity for detection of proteins at low concentration.
Dual-quenching NBD-based fluorescent probes for separate detection of H2S and Cys/Hcy in living cells
Authors: Jiang Yaqing , Ji Xiuru , Zhang Changyu , Xi Zhen , Sun Lu , Yi Long
Published: August 2019

Dual-quenching fluorescent probes based on thiolysis of NBD thioether/ether/amine for fast and separate detection of H2S and Cys/Hcy in living cells were rationally constructed.
Benzannulated spiroketal natural products: isolation, biological activity, biosynthesis, and total synthesis
Authors: Gillard Rachel M. , Brimble Margaret A.
Published: August 2019

A review discussing the isolation, biological activity, biosynthesis, and total synthesis of naturally occurring benzannulated spiroketals.
B(C6F5)3-catalyzed divergent cyanosilylations of chromones dependent on temperature
Authors: Wang Qiaotian , Feng Xiangqing , Meng Wei , Du Haifeng
Published: August 2019

A B(C6F5)3-catalyzed divergent cyanosilylation of chromones dependent on temperature has been realized to afford the corresponding products in good to high yields.
The secondary structure of a heptapeptide containing trifluoromethyl-λ6-tetrafluorosulfanyl substituted amino acids
Authors: Ikeda Akari , Capellan Aimée , Welch John T.
Published: August 2019

The polar hydrophobic trifluoromethyl-λ6-tetrafluorosulfanyl (CF3SF4) group effectively induces secondary structure in a heptapeptide in both polar and non-polar solvents.
Correction: cis or trans with class II diterpene cyclases
Authors: Jia Meirong , Peters Reuben J.
Published: August 2019

Correction for ‘cis or trans with class II diterpene cyclases’ by Meirong Jia, et al., Org. Biomol. Chem., 2017, 15, 3158–3160.
Structural factors of benzylated glucopyranans for shear-induced adhesion
Authors: Ihsan Abu Bin , Kawaguchi Yuta , Inokuchi Hiromichi , Endo Hiroshi , Koyama Yasuhito
Published: August 2019

Shear-induced adhesion of benzylated (1→2)-glucopyranan is attributed to the kinetically stabilized elongated structure and the switchable projection of hydroxyl groups induced by stress.
Photon upconversion for the enhancement of microfluidic photochemical synthesis
Authors: Wu M. , Moser B. A. , Steeves T. M. , Figueroa A. , Wallace B. M. , Kim S. T. , Esser-Kahn A. P. , Steinhardt R. C.
Published: August 2019

Photochemical transformations are greatly improved in yield by fluidic reactor technology.
Design and synthesis of stable indigo polymer semiconductors for organic field-effect transistors with high fluoride sensitivity and selectivity
Authors: Ngai Jenner H. L. , Chang George Y. , Gao Xiguang , Zhou Xiaocheng , Hendsbee Arthur D. , Li Yuning
Published: August 2019

A p-type indigo polymer semiconductor is developed for water-gated organic field-effect transistors (WGOFET) for sensing fluoride ions.
The synthesis of a 99mTc-labeled tetravalent targeting probe upon isonitrile coordination to 99mTcI for enhanced target uptake in saturable systems
Authors: Mizuno Yuki , Uehara Tomoya , Jen Chun-wei , Akizawa Hiromichi , Arano Yasushi
Published: August 2019

The difference in 2-proton's acidity between Lβ and LG led to dramatically different results of their reactions with [99mTc][Tc(CO)3(OH2)3]+.
Performance of selenate removal by biochar embedded nano zero-valent iron and the biological toxicity to Escherichia coli
Authors: Liang Liping , Xue Yuanyuan , Tian Gangliang , Mao Qiaole , Lou Zixuan , Wu Qian , Wang Qian , Du Juanshan , Meng Xu
Published: August 2019

The application of nano zero-valent iron (nZVI) in water environment was limited by its easily aggregation and potential biological toxicity.
Fabrication of a flexible transparent superomniphobic polydimethylsiloxane surface with a micropillar array
Authors: Pan Shengyang , Chen Min , Wu Limin
Published: August 2019

A flexible transparent superomniphobic polydimethylsiloxane (PDMS) surface with a micropillar array has been fabricated using Si nanowires as the mould.
Extracellular expression ofAerococcus viridanspyruvate oxidase in recombinantEscherichia colithrough SecB co-expression
Authors: Lu Junwen , Zhang Jianguo
Published: August 2019

Extracellular pyruvate oxidase was expressed at a high level usingE. coliby co-expression of chaperone SecB under bla promoter, and therefore cultivation optimization.
Comparison of the structure and function of a chimeric peptide modified titanium surface
Authors: Gong Lei , Geng Hongjuan , Zhang Xi , Gao Ping
Published: August 2019

The antimicrobial activity of Tyr structure in hBD3-3 is stronger than that of the α-helix structure in multifunctional chimeric peptides. Rigid connections avoid functional domain changes. Endogenous peptide fragments on a Ti surface could reduce peri-implant diseases.
Biomaterials for bone tissue engineering scaffolds: a review
Authors: Qu Huawei , Fu Hongya , Han Zhenyu , Sun Yang
Published: August 2019

Bone tissue engineering has been continuously developing since the concept of “tissue engineering” has been proposed. Biomaterials, as the basic material for the fabrication of scaffolds, play a vital role in bone tissue engineering.
Asymmetric retro-[1,4]-Brook rearrangement of 3-silyl allyloxysilanes via chirality transfer from silicon to carbon
Authors: Wu Ya , Chen Hua , Yang Wenyu , Fan Yu , Gao Lu , Su Zhishan , Hu Changwei , Song Zhenlei
Published: August 2019

Asymmetric retro-[1,4]-Brook rearrangement of 3-silyl allyloxysilanes has been developed involving Si-to-C chirality transfer, which is diastereoselective without loss of enantiomeric excess.
Preparation of monodisperse hybrid gel particles with various morphologiesviaflow rate and temperature control
Authors: Kanai Toshimitsu , Nakai Hiroki , Yamada Ayaka , Fukuyama Masafumi , Weitz David A.
Published: August 2019

We report a facile method for preparing monodisperse hybrid smart gel particles with various morphologies by using microfluidic devices.
Wrapping of a nanowire by a supported lipid membrane
Authors: Khosravanizadeh Amir , Sens Pierre , Mohammad-Rafiee Farshid
Published: August 2019

We explore the wrapping of a lipid membrane around a long cylindrical object in the presence of a substrate mimicking the cytoskeleton and obtain a wrapping phase diagram in terms of membrane–cytoskeleton and membrane–target adhesion energies.
Slippery when wet: mobility regimes of confined drops in electrowetting
Authors: Baratian Davood , Ruiz-Gutiérrez Élfego , Mugele Frieder , Ledesma-Aguilar Rodrigo
Published: August 2019

The stability of a thin film of an ambient lubricating fluid controls the mobility of electrowetting- and capillarity-driven droplets in asymmetric, wedge-shaped channels.
Inorganic sulfide solid electrolytes for all-solid-state lithium secondary batteries
Authors: Lian Peng-Jie , Zhao Bo-Sheng , Zhang Lian-Qi , Xu Ning , Wu Meng-Tao , Gao Xue-Ping
Published: August 2019

This review provides essential features of sulfide solid electrolytes and an in-depth explanation of the interface issues in all-solid-state lithium secondary batteries.
Geometric structure-guided photo-driven ion current through asymmetric graphene oxide membranes
Authors: Feng Yaping , Dai Haoyu , Chen Jianjun , Kong Xian , Yang Jinlei , Jiang Lei
Published: August 2019

A photo-driven ion transport mode is developed that the limitation of the need local illumination.
Facile synthesis of high-performance nonfullerene acceptor isomers via a one stone two birds strategy
Authors: Li Tengfei , Yang Langxuan , Xiao Yiqun , Liu Kuan , Wang Jiayu , Lu Xinhui , Zhan Xiaowei
Published: August 2019

Two isomeric fused undecacyclic electron acceptors (FUIC and i-FUIC) with strong near-infrared absorption are designed and synthesized via a one stone two birds strategy.
Alkaliphilic Cu2O nanowires on copper foam for hosting Li/Na as ultrastable alkali-metal anodes
Authors: Ma Yong , Gu Yuting , Yao Yuanzhou , Jin Huidong , Zhao Xiaohui , Yuan Xietao , Lian Yuebin , Qi Pengwei , Shah Rahim , Peng Yang , Deng Zhao
Published: August 2019

Composite Li and Na anodes were successfully constructed through the infusion of molten metals into a Cu foam host. Both the Li/Na@CF anodes demonstrate superior long-term stability for more than 500 cycles with overpotentials as small as 10 mV.
Translocation of soft phytoglycogen nanoparticles through solid-state nanochannels
Authors: Lenart William R. , Kong Weiwei , Oltjen William C. , Hore Michael J. A.
Published: August 2019

Phytoglycogen nanoparticles are soft, naturally-derived nanomaterials with a highly uniform size near 35 nm.
Hyaluronic acid modified doxorubicin loaded Fe3O4 nanoparticles effectively inhibit breast cancer metastasis
Authors: Gong Ting , Dong Zhanglu , Fu Yao , Gong Tao , Deng Li , Zhang Zhirong
Published: August 2019

Hyaluronic acid (HA) modified doxorubicin (DOX) loaded Fe3O4 nanoparticles (Fe3O4–DOX–HA) exhibited excellent antitumor and anti-metastasis efficacy against aggressive breast cancer possibly via the combination effect of cytotoxic chemotherapy and M1 macrophage polarization.
A passively mode-locked thulium-doped fiber laser based on a D-shaped fiber deposited with PbS nanoparticles
Authors: Zhou Yong , Zhang Zhengxiong , Jiang Wenhui , Gao Panyun , Zhang Xiu , Zhang Wei , Zhang Ying , Qyyum Abdul , Li Xiaohui , Liao Meisong , Gao Weiqing
Published: August 2019

A passively mode-locked thulium-doped fiber laser with ultra-fast pulse generation based on a D-shaped fiber deposited with PbS nanoparticles.
The deficiency of miR-214-3p exacerbates cardiac fibrosis via miR-214-3p/NLRC5 axis
Authors: Yang Kun , Shi Jiaran , Hu Zhujun , Hu Xiaosheng
Published: August 2019

Cardiac fibrosis is a common pathological feature of many cardiovascular diseases. The regulatory mechanisms of miRNAs in cardiac fibrosis are still unknown. Previous studies on miR-214-3p in cardiac fibroblasts reached contradictory conclusions. Thus the role of miR-214-3p in cardiac fibrosis deserves further exploration. Using a combination of in vitro and in vivo studies, we identified miR-214-3p as an important regulator of cardiac fibrosis, and the proliferation and activation of cardiac fibroblasts. We demonstrated that the expression of miR-214-3p is down-regulated in TGF-β1-treated myofibroblasts and transverse aortic constriction (TAC)-induced murine model. Additionally, miR-214-3pflox/flox/FSP1-cre mice and miR-214-3pwt/wt/FSP1-cre mice were subjected to TAC operation or sham operation, and the conditional knockout of miR-214-3p in cardiac fibroblasts aggravates TAC-induced cardiac fibrosis. In vitro, our results indicate that miR-214-3p is an important repressor for fibroblasts proliferation and fibroblast-to-myofibroblast transition by functionally targeting NOD-like receptor family CARD domain containing 5 (NLRC5). In conclusion, our findings show that the deficiency of miR-214-3p exacerbates cardiac fibrosis and reveal a novel miR-214-3p/NLRC5 axis in the regulation of cardiac fibrosis.
Exosomal microRNA-122 mediates obesity-related cardiomyopathy through suppressing mitochondrial ADP-ribosylation factor-like 2
Authors: Wang Yongshun , Jin Pianpian , Liu Jingjin , Xie Xiang
Published: August 2019

Emerging studies have demonstrated that microRNAs (miRs) participate in the development of multiple metabolic complications including cardiovascular diseases. Among them, circulating level of liver-secreted miR-122 was closely correlated with several consequence of heart diseases in clinical studies, and overexpression of miR-122 impaired cardiomyocyte function. However, it was unknown whether miR-122 could regulate cardiac biology in obesity. Therefore, present study was to disclose the role of miR-122 in cardiac metabolic disorders and potential molecular mechanisms. Through utilizing clinical samples and high fat diet-fed mice, we investigated the physiological roles of miR-122 in obesity-related cardiomyopathy. Besides, present study explored the mitochondrial function under exosomal miR-122 stimulation in mouse primary cardiomyocytes. In clinical samples and obese mice, the circulating level of exosomal miR-122 was positively correlated with cardiac dysfunctional parameters, including reduction in ejection fraction (EF) and increased levels of NT-proBNP. Human plasma exosomes transported miR-122 into mouse primary cardiomyocytes, and impaired mitochondrial ATP production and oxygen consumption, whereas miR-122 sponge improved these inhibitory effects. In dietary-induced mice, increased hepatic and circulating exosomal miR-122 deteriorated cardiac structure and functional index, and inhibited mitochondrial function. Liver-specific blockage of miR-122 attenuated abnormal cardiac remodeling. Mechanistically, miR-122 directly bound and suppressed mitochondrial protein ADP-ribosylation factor-like 2 (Arl-2) in vitro and in vivo. Knockdown of Arl-2 abolished the mitochondrial benefits of miR-122 sponge in exosome-treated mouse primary cardiomyocytes.

In conclusions, our present study firstly showed that liver-secreted exosomal miR-122 played a critical role in the development of metabolic cardiomyopathy, and miR-122/mitochondrial Arl-2 signaling affected cardiac energy homeostasis.
Speech Errors and Phonological Awareness in Children Ages 4 and 5 Years With and Without Speech Sound Disorder
Authors: Brosseau-Lapré Françoise , Roepke Elizabeth
Published: August 2019

Purpose

The aim of this study was to examine the relationship between types of speech errors produced by children with speech sound disorders (SSD) and children with typical speech and language development (TD) and phonological awareness (PA) skills.

Method

Participants were 40 children, half with SSD and half with TD, ages 4 and 5 years. They completed standard speech, language, and PA tests as well as produced single words varying in length from 1 to 5 syllables. Production of each consonant was classified as either correct production, omission, substitution, and distortion; errors were also classified as typical or atypical.

Results

The children with SSD produced similar proportions of each type of speech errors in mono-, di-, and multisyllabic words. In contrast, the children with TD produced much lower, but not significantly different, proportions of omissions, substitutions, distortions, and typical speech errors at each word length. They produced no atypical errors in monosyllabic words and were significantly more likely to produce them in multisyllabic words. Proportions of omissions and atypical speech errors were significantly correlated with PA performance. Variance in PA skills was predicted partly by vocabulary, language skills, and age; omissions accounted for an additional 5% of variance in PA. Other types of speech errors did not account for additional significant variance in PA performance.

Conclusions

Poorer PA skills were found to be associated with omissions and atypical speech errors. Research is required to investigate the potential of omission and atypical error use in predicting which children are likely to receive diagnoses of SSD and later literacy difficulties.
Rhythmic Training Improves Temporal Anticipation and Adaptation Abilities in Children With Hearing Loss During Verbal Interaction
Authors: Hidalgo Céline , Pesnot-Lerousseau Jacques , Marquis Patrick , Roman Stéphane , Schön Daniele
Published: August 2019

Purpose

In this study, we investigate temporal adaptation capacities of children with normal hearing and children with cochlear implants and/or hearing aids during verbal exchange. We also address the question of the efficiency of a rhythmic training on temporal adaptation during speech interaction in children with hearing loss.

Method

We recorded electroencephalogram data in children while they named pictures delivered on a screen, in alternation with a virtual partner. We manipulated the virtual partner's speech rate (fast vs. slow) and the regularity of alternation (regular vs. irregular). The group of children with normal hearing was tested once, and the group of children with hearing loss was tested twice: once after 30 min of auditory training and once after 30 min of rhythmic training.

Results

Both groups of children adjusted their speech rate to that of the virtual partner and were sensitive to the regularity of alternation with a less accurate performance following irregular turns. Moreover, irregular turns elicited a negative event-related potential in both groups, showing a detection of temporal deviancy. Notably, the amplitude of this negative component positively correlated with accuracy in the alternation task. In children with hearing loss, the effect was more pronounced and long-lasting following rhythmic training compared with auditory training.

Conclusion

These results are discussed in terms of temporal adaptation abilities in speech interaction and suggest the use of rhythmic training to improve these skills of children with hearing loss.
Reflective arrayed waveguide grating with parallel arms using one‐dimensional photonic crystal reflector
Authors: Okayama H. , Onawa Y. , Takahashi H. , Shimura D. , Yaegashi H. , Sasaki H.
Published: August 2019

The authors demonstrate reflective arrayed waveguide grating designed for silicon waveguide. The phase shift sections of the arrayed waveguide are placed in parallel configuration. This enables the construction of compact device. The one‐dimensional photonic crystal is used as the reflector at the end of the arm. Wide reflection bandwidth is obtained.
Sequence control strategy for hybrid energy storage system for wind smoothing
Authors: Zhang Feng , Hu Zechun , Meng Ke , Ding Lei , Dong Zhao Yang
Published: August 2019

In this study, an advanced control strategy is proposed for hybrid energy storage systems (HESS) to smooth wind power generation fluctuations. Compared with the limited performance of solo energy storage system, the HESS, composing of lithium‐ion battery (LiB) and a flywheel energy storage system (FESS), can comparatively show improved flexibility and adaptivity. A novel sequence control scheme for the HESS is proposed in this study to improve the overall economic and smoothing performances. Specifically, based on variable‐interval reference outputs, the control horizon of the HESS is statistically determined. Afterwards, a sequence control scheme for the HESS is presented to improve the internal collaboration of HESS media. Especially when the LiB and FESS are synchronously charging/discharging to smooth wind power, the charge/discharge power are optimally distributed between the LiB and FESS via an optimiser to minimise the equivalent cost during each control cycle. Case studies are conducted to demonstrate the performance of the proposed method.
Design for the system of high‐speed data transmission and data pre‐processing for synthetic aperture radar imaging based on the system‐on‐a‐programmable‐chip
Authors: Hu Shankang , Liu Xiaoning , Xie Yizhuang , Hu Shanqing , Li Bingyi
Published: August 2019

For the chirp scaling algorithm of synthetic aperture radar imaging, an efficient transmission of a large volume of data is indispensable. Prior to imaging, there is a requirement for appropriate pre‐processing of the echo signal by digital down conversion (DDC). The DDC module has to remove the carrier, having an appropriate filtering processing and down‐sampling processing. No matter what imaging mode is chosen, such as the stripmap mode, spotlight mode, and sliding spotlight, the needs of the whole imaging system are matched by setting a series of configurations about this pre‐processing module and this transmission module. The system‐on‐a‐programmable‐chip constituted by the Advanced RISC Machine and field programmable gate array (FPGA) is the perfect experimental platform to test the performance of this system. Some of the algorithms, which are more feasible for this specific project for pre‐processing in Maltab, were transplanted to FPGA using the VHSIC Hardware Description Language for functional verification. Finally, the processing results in Matlab were compared with this system to find the difference. At the same time, the time that elapsed from the 2 GB original data entering the system to the time the processed results were completely returned to the PC was also counted.
Robust estimations of DOA and source number with strong and weak signals coexisting simultaneously based on a sparse uniform array
Authors: Liu Qingyan , Zeng Cao , Li Shidong , Yang Zhiwei , Liao Guisheng
Published: August 2019

For the problem of the direction‐of‐arrival (DOA) and source number estimations with coexisting strong and weak signals, a new method for robust estimations of DOA and the number of sources based on an optimized broad band sparse array is proposed. To reduce the impact of the strong signals on the weak ones, an orthogonal projection matrix is constructed by the robust steering vector of the current strongest signal. The proposed method has super‐resolution and is robust to array mismatch. The effectiveness of the proposed method is demonstrated by the results of simulations.
Novel MIMO‐SAR system applied for high‐speed and high‐accuracy deformation measurement
Authors: Hu Cheng , Deng Yunkai , Tian Weiming , Wang Jingyang , Zeng Tao
Published: August 2019

As a novel system, multiple‐input multiple‐output synthetic aperture radar (MIMO‐SAR) has achieved rapid development in the past years. Based on the MIMO technique, multiple transmitting and receiving antennas could be utilised to compose a specific geometrical structure and acquire a large aperture. The MIMO‐SAR system can be utilised to take deformation measurement to scenes with high deformation rate and can avoid the problems of phase errors caused by the antennas' vibration on the rail. This study introduces the basic principle of the MIMO technique and the key problems in the system design. Experimental datasets are acquired with the MIMO‐SAR and GB‐SAR (ground‐based SAR) systems simultaneously. Comparisons of the imaging results indicate that the MIMO‐SAR system has a better repeat‐track interferometry performance than the GB‐SAR system. In addition, deformation measurement results validate the high‐accuracy measurement ability of the MIMO‐SAR system.
High‐performance tin‐oxide supercapacitors using hydrazine functionalising assisted by hydrogen plasma treatment
Authors: Abdollahi Hassan , Samkan Mahmoud , Mohajerzadeh Mohammad Ala , Sanaee Zeinab , Mohajerzadeh Shams
Published: August 2019

For the first time, the effects of adding hydrazine solution to tin‐oxide sol–gel to be used as an electrode in high‐performance supercapacitors have been studied. The mixed solution has been spin‐coated on stainless steel foils as substrates followed by exposing to hydrogen plasma treatment. The results show the effectiveness of adding hydrazine to tin‐oxide sol–gel, compared to pure tin‐oxide sol–gel. The electrochemical tests such as cyclic‐voltammetry and charge–discharge characteristics have been conducted, and the findings demonstrate the favourable contribution of adding hydrazine in increasing the capacitance of the supercapacitor. The physical properties of the tin‐oxide material have been analysed by means of FESEM, XRD, TEM, FT‐IR spectroscopy and Raman spectroscopy to have a better understanding of preparation procedure and better insight in material synthesis. The electrochemical tests demonstrate a high capacitance of 18 mF/cm2 for the sample treated with hydrazine during the sol–gel processing which is around 40% higher than the merely prepared tin‐oxide sample. The measured values for the capacitance versus rate show a rather linear correlation between these parameters, further corroborating an electric‐double layer‐based performance for such devices.
Recent progress in imaging technology combined with nanomaterials for medical applications
Authors: Ding Ziyao , Xu Ke
Published: August 2019

The development of medical imaging technology has led to progress in nanomedical diagnosis, prevention, and detection. In this study, the latest applications of single‐mode imaging, dual‐mode imaging and multimode imaging in nanomedicine are reviewed. Meanwhile, in the single‐mode imaging section, several imaging techniques such as magnetic resonance imaging and computed tomography illuminate their respective characteristics and medical applications. In the part of dual‐mode imaging, nanoprobes and nanodrug carriers as nanobiotechnology applications, which combined with dual‐mode imaging are conducive to the accurate cancer diagnosis and efficient delivery of drugs, respectively. In the application of multimodal imaging, owing to the combination of treatment and multimodal imaging, functional diversity and fewer side effects are obtained. Each section outlines the current utilisation and potential of imaging in nanomedicine, illustrating the potential applications in the future. This review is supposed to provide some ideas for the multifunctional application and accelerate another technical leap of fusion imaging technology in medicine.
Enhanced adsorption capacity of guar gum derived carbon for quinoline
Authors: Zhang Kenan , Li Wenyao , Jiang Haishun , Li Jiaojiao , Wang Zhe , Yang Hui , Han Weihua
Published: August 2019

Residuary quinoline is a potential risk for human health in the environment, and the adsorption process is an effective way to remove this residual antibiotic. In this work, a very common guar gum was carbonised to guar gum derived carbon, which demonstrated a rich porous structure and high Brunauer–Emmett–Teller surface area (990 m2 g−1) that endowed the quinoline antibiotic with a fast adsorption rate and excellent adsorption capacity. The nonlinear fitting parameters of the adsorption isotherm indicate that the Langmuir model can accurately represent the adsorption behaviour with a maximum adsorption capacity of 425 mg g−1. The guar gum derived carbon shows great potential for the removal of antibiotics such as quinoline and other contaminants in contaminated water.
Maximum parsimony analysis of the effect of the environment on the evolution of galaxies
Authors: Fraix-Burnet Didier , D’Onofrio Mauro , Marziani Paola
Published: August 2019

Context. Galaxy evolution and the effect of the environment are most often studied using scaling relations or regression analyses around a given property. However, these approaches do not take into account the complexity of the physics of the galaxies and their diversity.

Aims. We here investigate the effect of the cluster environment on the evolution of galaxies through multivariate, unsupervised classification and phylogenetic analyses applied to two relatively large samples from the Wide-field Nearby Galaxy-cluster Survey (WINGS), one of cluster members and one of field galaxies (2624 and 1476 objects, respectively).

Methods. These samples are the largest ones ever analysed with a phylogenetic approach in astrophysics. To be able to use the maximum parsimony (cladistics) method, we first performed a pre-clustering in 300 clusters with a hierarchical clustering technique, before applying it to these pre-clusters. All these computations used seven parameters: B − V, log(Re), nV, ⟨μ⟩e, Hβ, D4000, and log(M*).

Results. We have obtained a tree for the combined samples and do not find different evolutionary paths for cluster and field galaxies. However, the cluster galaxies seem to have accelerated evolution in the sense that they are statistically more diversified from a primitive common ancestor. The separate analyses show a hint of a slightly more regular evolution of the variables for the cluster galaxies, which may indicate they are more homogeneous compared to field galaxies in the sense that the groups of the latter appear to have more specific properties. On the tree for the cluster galaxies, there is a separate branch that gathers rejuvenated or stripped-off groups of galaxies. This branch is clearly visible on the colour-magnitude diagram, going back from the red sequence towards the blue one. On this diagram, the distribution and the evolutionary paths of galaxies are strikingly different for the two samples. Globally, we do not find any dominant variable able to explain either the groups or the tree structures. Rather, co-evolution appears everywhere, and could depend itself on environment or mass.

Conclusions. This study is another demonstration that unsupervised machine learning is able to go beyond simple scaling relations by taking into account several properties together. The phylogenetic approach is invaluable in tracing the evolutionary scenarios and projecting them onto any bivariate diagram without any a priori modelling. Our WINGS galaxies are all at low redshift, and we now need to go to higher redshfits to find more primitive galaxies and complete the map of the evolutionary paths of present day galaxies.
NuSTAR observations of wind-fed X-ray pulsar GX 301–2 during unusual spin-up event
Authors: Nabizadeh Armin , Mönkkönen Juhani , Tsygankov Sergey S. , Doroshenko Victor , Molkov Sergey V. , Poutanen Juri
Published: August 2019

We report on NuSTAR observations of the well-known wind-accreting X-ray pulsar GX 301–2 during a strong spin-up episode that took place in January–March 2019. A measurement of high luminosity of the source in the most recent observation allowed us to detect a positive correlation of the cyclotron line energy with luminosity. Beyond that, only minor differences in spectral and temporal properties of the source during the spin-up, presumably associated with the formation of a transient accretion disk, and the normal wind-fed state could be detected. Finally, we discuss conditions for the formation of the disk and possible reasons for lack of any appreciable variations in most of the observed source properties induced by the change of the accretion mechanism, and conclude that the bulk of the observed X-ray emission is still likely powered by direct accretion from the wind.
Development of Augmented Reality Application for Interactive Smart Materials
Authors: Djurdjevic Stefan , Novakovic Dragoljub , Dedijer Sandra , Kasikovic Nemanja , Zeljkovic Zeljko
Published: August 2019

The paper presents research related to thermochromic inks printed on textile materials. These types of materials are smart materials, they act as packaging indicators, and we use them to develop a software application on mobile devices. That application identifies the most significant changes in parameters of the goods contained in the packaging, such as temperature changes during the storage and transport (goods packaged in packaging that is sensitive to heat), or such as pharmaceuticals and frozen food, etc. This paper aims to demonstrate the possibility of connecting thermochromic materials and Augmented Reality technology through the development of an application for identifying thermochromic materials changes. The tested samples were printed on the textile with a screen printing technique with conventional and thermochromic leuco inks on various textile materials. The Augmented Reality platform Vuforia was used for developing a software application for mobile devices. The application was developed for the iOS mobile platform. The result of the research is the functional application that actively monitors and displays changes in thermochromic materials due to temperature changes, which identifies the effect of heat on the goods in textile packaging.
A study of thermo-elastic characteristics of the machine tool spindle
Authors: Zivkovic Aleksandar , Knezev Milos , Zeljkovic Milan , Navalusic Slobodan , Dana Beju Livia
Published: August 2019

In order to avoid the failure of machine tools spindles in the real machining process due to an increase in temperature, it is essential to predict its thermal behavior in the designing phase. The characteristics of machine tools significantly depend on the thermal-elastic behavior of the spindle. These parameters directly affect the productivity and quality of machining operations. This paper presents a thermal - elastic model of the machine tool spindle which was based on the quasi-static model of bearings and the finite element (FE) model of the spindle shaft. Based on quasi-static model of bearings with angular contact, heat generated and thermal contact resistances (TCR) are determined for each position of the balls. The aforementioned constraints have been applied to the 3D FE model of the spindle which allowed for establishing non-stationary change of temperature and thermal deformation. In order to prove the efficacy of the proposed model, experimental measurements of spindle and bearing temperatures were done using thermocouples and thermal imager.
Design of a Brain-Controlled Video Game based on a BCI System
Authors: Rosca Sebastian – Daniel , Leba Monica
Published: August 2019

The Computer Brain Interface (BCIs) is a new type of user interface designed to recognize real-time user-specific intentions based on user brain mapping. Gradual advancing technology behind the BCI interface has made it possible to develop gaming applications that use directly brain input instead of well-known traditional control methods. This paper presents the Mental Pool Game, a brain-controlled computer game powered by Unity3D, which uses a commercial BCI device based on a network of electroencephalography (EEG) sensors placed on the scalp capable of creating brain patterns only by capturing conscious thoughts from a user that can be easily reproduced as mental actions to control strength and speed on which the user can project on the white ball to hit any of the eight balls on the pool table. Mental PoolGame, powered by Unity3D, is a platform that provides all tools necessary for a developer to develop three-dimensional games that has been designed so that the end user no longer uses classical commands that depend on the use of well-known peripheral input devices present on any PC, such as a keyboard, mouse and more recently a joystick to control the movement of space in an object in a virtual environment.
Prosumer’s impact on low voltage distribution networks
Authors: Volosciuc Sorin Dan , Dragosin Monica Elena
Published: August 2019

The use of renewable energy, within nowadays energy policy, has increased considerably all over the world in order to respond to the increasing energy consumption and to reduce the environmental impact of the electricity generation. At the beginning, the relatively low penetration levels of distributed generation does not produce problems, however, the nowadays massive increase of local power generation have led to new integration challenges in order to ensure the reliability and quality of the power supply. This paper also highlights some aspects regarding the use of the active distribution networks of low voltage to which electric energy producers are connected-the prosumers: advantages and disadvantages for the consumer and for the supplier, technical requirements for connection, identification of the problems of power quality.
3D-Printed shoe last for bespoke shoe manufacturing
Authors: Amza Cătălin , Zapciu Aurelian , Popescu Diana
Published: August 2019

This paper presents a new approach for the production of bespoke shoe lasts used in shoe industry. It is based on measuring key geometric features of existing shoe lasts and establishing a parametric system which can then be used to create a 3D model of a customized fit shoe last. Thus, instead of 3D-scanning the foot and then doing time consuming and skill intensive point cloud data processing, the proposed solution requires only taking several measurements of the customer’s foot and inputting them into the parametric model to obtain the tailored shoe last 3D geometry. Furthermore, the internal geometry of this shoe last is topologically optimized to reduce material volume and 3D printing time, while still withstanding temperatures and loads specific to the shoe manufacturing process. The 3D model also includes geometrical features allowing the attaching of process-specific mounting hardware. Material Extrusion 3D Printing (ME3DP) was used to fabricate the shoe last from thermoplastic material. 3D-printed shoe lasts were tested in a real manufacturing setting, successfully producing bespoke canvas shoes with rubber soles. During testing, the shoe lasts were subjected to typical process loads and to high temperatures.
Experimental study on the automatic selection of olives
Authors: Babanatis Merce Roxana Mihaela , Babanatsas Theoharis , Glãvan Dan Ovidiu
Published: August 2019

In this paper, we made an experimental stand designed to recognize and sort all three types of olives taking into consideration color (black and green), regardless of their dimensions. The stand is intended for small businesses, as it is well-known that in Greece most olive orchards are in the range of hundreds of square meters, or maximum in the 1-2-hectare range, and of the modern traditional type, as shown in other papers written by Babanatsas and Glavan [1-2]. Therefore, an inexpensive and efficient piece of equipment designed for this type of orchards is welcome.
Improvements on Grasping the Object with Irregular Shapes
Authors: Spanu Alina Rodica , Dragoi George , Panait Iolanda
Published: August 2019

The image processing technique has been rapidly developed during the last years due to the improvement of computer science and applied algorithms. The paper aims to analyse the method for designing the active surfaces of the gripper suitable for the object with irregular shapes. Concerning these particularities, we have taken the object picture in order to process it. By using the appropriate algorithms, the results were transferred in the three dimensional modelling software, so that the fingers were designed according to the object shapes. Finally, they have been manufactured using the 3D printer and the technical performances were analysed.
Process improvement cost management in the quality management system of an industrial enterprise
Authors: Aleksakhin Alexander , Eliseeva Evgeniya , Zaytsev Ivan , Aleksakhina Yuliya , Kostygova Luydmila
Published: August 2019

Modern enterprise management focuses on the principles and requirements of ISO 9000 standards. At present, the quality management of an organization is viewed as a system of interrelated processes aimed, firstly, at satisfying and anticipating consumer demands and, secondly, at improving the efficiency of work based on leadership of managers and active use of continuous improvement methods. Analysis and accounting of production costs must be carried out based on concepts and methods of quality management using a systematic approach. Quality is determined by several its components, forming a so-called quality loop. Quality is embedded in products from the very beginning and is controlled at all stages. A quality product is obtained only if the necessary requirements are met at all stages. Quality begins with research needs. This is the most important stage in the life cycle of any product, since it is on it that the overall design of the product is decided, the image is formed, the most common characteristics are determined. The proposed approach allows identifying and comprehensively representing the cost accounting process. The use of resource management activities at the enterprise allows reducing the share of material costs in the total costs of production and increases the efficiency of the organization.