bluuebunny/crossref_metadata_2025 huggingface dataset:
Hybrid MOF-808-Tb nanospheres for highly sensitive and selective detection of acetone vapor and Fe3+ in aqueous solution
Authors: Zhang Jian , Peh Shing Bo , Wang Jian , Du Yonghua , Xi Shibo , Dong Jinqiao , Karmakar Avishek , Ying Yunpan , Wang Yuxiang , Zhao Dan
Published: March 2019

Hybrid MOF-808-Tb nanospheres were synthesized by a microwave-assisted approach and post-synthetic modification, exhibiting an outstanding luminescence sensing performance.
A bio-inspired imidazole-functionalised copper cage complex
Authors: Bete Sarah C. , Würtele Christian , Otte Matthias
Published: March 2019

An endo-functionalized cage is presented that upon copper(i) complexation assembles to a well-defined structural and catalytically active biomimetic model compound.
Synthesis of chiral nine and twelve-membered cyclic polyamines from natural building blocks
Authors: Müntener Thomas , Thommen Fabienne , Joss Daniel , Kottelat Jérémy , Prescimone Alessandro , Häussinger Daniel
Published: March 2019

A rational strategy for the facile and efficient cyclization of amino acid-based linear precursors forming nine and twelve-membered cyclic peptidomimetics is reported.
Activity-based protein profiling reveals GSTO1 as the covalent target of piperlongumine and a promising target for combination therapy for cancer
Authors: Li Li , Zhao Yue , Cao Ran , Li Lin , Cai Gaihong , Li Jiaojiao , Qi Xiangbing , Chen She , Zhang Zhiyuan
Published: March 2019

Through ABPP, piperlongumine was identified to induce cancer cell death by covalently binding and inhibiting GSTO1 and has a broad spectrum synergistic effect with other anti-cancer agents.
A lysosome-targeting and polarity-specific fluorescent probe for cancer diagnosis
Authors: Fan Li , Wang Xiaodong , Ge Jinyin , Li Feng , Wang Xiao , Wang Juanjuan , Shuang Shaomin , Dong Chuan
Published: March 2019

A lysosome-targeting and polarity-specific fluorescent probe CPM has been rationally designed for cancer diagnosis and imaging.
Surface plasmon resonances enhanced click chemistry through synergistic photothermal and hot electron effects
Authors: Sun Xia , Zou Yu , Jiang Jiang
Published: March 2019

Surface plasmon resonance excitation on Au enhances a visible light-assisted click reaction through synergistic photothermal and hot electron effects.
Chiral induction, modulation and locking in porphyrin based supramolecular assemblies with circularly polarized light
Authors: Hu Jingang , Xie Yifan , Zhang Hongli , He Chenlu , Zhang Qijin , Zou Gang
Published: March 2019

Herein, we propose a novel circularly polarized light (CPL) triggered asymmetric self-assembly strategy to controllably construct chiral supramolecular assemblies from achiral porphyrin derivatives.
Reply to the ‘Comment on “Decoding real space bonding descriptors in valence bond language”’ by S. Shaik, P. Hiberty and D. Danovich,Phys. Chem. Chem. Phys., 2019, 21, DOI: 10.1039/C8CP07225F
Authors: Martín Pendás A. , Francisco E.
Published: March 2019

The concerns posed by S. Shaik, P. Hiberty and D. Danovich regarding the mapping between quantum chemical topology (QCT) and valence bond (VB) concepts are discussed and clarified. We stress that we do not redefine the VB concept of the resonance structure but that we compare it with its QCT equivalent in real space.
Self-assembly of tripeptides into γ-turn nanostructures
Authors: Ozawa Yumi , Sato Hisako , Kayano Yohei , Yamaki Nana , Izato Yu-ichiro , Miyake Atsumi , Naito Akira , Kawamura Izuru
Published: March 2019

Self-assembling phenylalanine-based peptides have garnered interest owing to their potential for creating new functional materials. l-Phe-l-Phe-d-Phe tripeptide forms a γ-turn structure in the nanostructure.
First-principles study of NaxTiO2 with trigonal bipyramid structures: an insight into sodium-ion battery anode applications
Authors: Choe Song-Hyok , Yu Chol-Jun , Ri Kum-Chol , Kim Jing-Song , Jong Un-Gi , Kye Yun-Hyok , Hong Song-Nam
Published: March 2019

Crystalline structures, energetics, electrode voltage, and electronic structures of NaxTiO2 with trigonal bipyramid structures were obtained with first-principles calculations.
Structural analysis of helicene molecules adsorbed on symmetric surfaces
Authors: Tuca Emilian , Paci Irina
Published: March 2019

We investigate the structure of helicene monomers and stacked dimers on (111) facets of coinage metals. The effects of the coupling between intermolecular dispersive forces, intramolecular steric repulsion between end rings, and surface-molecule interactions are considered, as well as their implications to monolayer organization and surface commensuration.
Substitutional disorder: structure and ion dynamics of the argyrodites Li6PS5Cl, Li6PS5Br and Li6PS5I
Authors: Hanghofer I. , Brinek M. , Eisbacher S. L. , Bitschnau B. , Volck M. , Hennige V. , Hanzu I. , Rettenwander D. , Wilkening H. M. R.
Published: March 2019

Li NMR spectroscopy reveals rapid Li ion dynamics in the poor Li ion conductor Li6PS5I; long-range motion is, however, only possible for Li6PS5Br and Li6PS5Cl with anion site disorder.
The role of dispersion and anharmonic corrections in conformational analysis of flexible molecules: the allyl group rotamerization of matrix isolated safrole
Authors: Zhang Hongli , Krupa Justyna , Wierzejewska Maria , Biczysko Malgorzata
Published: March 2019

Conformational changes of the monomeric safrole isolated in low temperature xenon matrices, induced thermally or using narrow-band UV radiation, represent challenging example for the theoretical structural, spectroscopic and energetic analysis.
Effect of organic cation states on electronic properties of mixed organic–inorganic halide perovskite clusters
Authors: Manzhos Sergei , Pal Amrita , Chen Yingqian , Giorgi Giacomo
Published: March 2019

We study the effect of organic cation-centered states in mixed organic–inorganic halide perovskite clusters on the bandstructure and optical properties.
Red, orange-red and near-infrared light emitting ternary lanthanide tris β-diketonate complexes with distortedC4vgeometrical structures
Authors: Ahmed Zubair , Iftikhar Khalid
Published: March 2019

This paper presents the photophysical and optoelectronic properties (in the visible to NIR range) of isostructural nona-coordinate Ln complexes with distortedC4vgeometrical structures.
Decarbonylation of phenylacetic acids by high valent transition metal halides
Authors: Bartalucci Niccolò , Marchetti Fabio , Zacchini Stefano , Pampaloni Guido
Published: March 2019

The unusual decarbonylation of α-phenyl carboxylic acids with suitable substituents is a general reaction promoted at room temperature by homoleptic halides of high valent transition metals.
C–F activation of perfluorophenazine at nickel: selectivity and mechanistic investigations
Authors: Torres Òscar , Pfister Nils , Braun Thomas , Wittwer Philipp
Published: March 2019

The reactivity of Ni(cod)2 in the presence of trialkylphosphines towards perfluorophenazine was investigated. Studies on the mechanism of the C–F activation process are reported.
Iridium(iii) polypyridine complexes with a disulfide linker as biological sensors and cytotoxic agents
Authors: Li Steve Po-Yam , Shum Justin , Lo Kenneth Kam-Wing
Published: March 2019

The synthesis, characterization, and photophysical properties of novel iridium(iii) polypyridine complexes as thiol-sensing probes and cytotoxic agents are reported.
20.7% highly reproducible inverted planar perovskite solar cells with enhanced fill factor and eliminated hysteresis
Authors: Liu Xixia , Cheng Yuanhang , Liu Chao , Zhang Tianxiang , Zhang Nengduo , Zhang Siwen , Chen Jingshen , Xu Qinghua , Ouyang Jianyong , Gong Hao
Published: March 2019

The approach of a hydrophilic group grafted buffer layer (HGGBL) was investigated for perovskite growth to realize highly efficient inverted planar perovskite solar cells with superior reproducibility, negligible hysteresis and improved stability.
Ab initio screening of cation-exchanged zeolites for biofuel purification
Authors: Jabraoui Hicham , Khalil Ibrahim , Lebègue Sébastien , Badawi Michael
Published: March 2019

Using periodic density functional theory calculations combined with four dispersion-correction schemes, we have investigated the adsorption of phenol, toluene and water for various cation-exchanged faujasite zeolites.
An efficient and durable hierarchically porous KLA/TiPO catalyst for vapor phase condensation of lactic acid to 2,3-pentanedione
Authors: Zhang Ju , Li Xinli , Pang Jun , Zou Weixin , Tang Congming , Dong Lin
Published: March 2019

A KLA/TPO catalyst has excellent activity due to the synergistic catalysis of Lewis acidic sites and basic sites.
Dependence of the photo-response behavior of self-assembled 2D Azo-derivatives on the functional groups on a solid surface
Authors: Zhu Xiaoyang , Geng Yanfang , Zhu Xuefeng , Duan Pengfei , Li Feng , Zeng Qingdao , Qi Junjie
Published: March 2019

Here, by means of scanning tunneling microscopy, we found that 2D self-assembled monolayers of four azobenzene derivatives exhibited different isomerization behaviors when taken from dark to irradiation conditions.
pH-Responsive smart non-woven fabrics (NWFs) with double switchable wettability between superhydrophilicity–superhydrophobicity–superhydrophilicity to oil/water separation
Authors: Zhang Zhibin , Yu Hang , Guo Jiahong , Bai Zhiwei , Zhang Shiping , Zhang Yajuan , Wang Jikui
Published: March 2019

pH-Responsive smart non-woven fabrics (NWFs) possess double switchable wettability and excellent selectivity, separation efficiency and mechanical properties for recyclability.
A novel octacyanido dicobalt(iii) building block for the construction of heterometallic compounds
Authors: Alexandru Maria-Gabriela , Marino Nadia , Visinescu Diana , De Munno Giovanni , Andruh Marius , Bentama Abdeslem , Lloret Francesc , Julve Miguel
Published: March 2019

The first bimetallic 3d cyanido-bearing complex with 2,5-dpp as a bridge, (Ph4P)2[Co2III(μ-2,5-dpp)(CN)8]·2H2O, is obtained and used as a metalloligand with the [Mn(MAC)(H2O)2]2+cation to build a {CoIIIMnII} heterobimetallic chain.
tert-Butyl(3-cyano-4,6-dimethylpyridin-2-yl)carbonate as a green and chemoselective N-tert-butoxycarbonylation reagent
Authors: Du Fangyu , Zhou Qifan , Fu Yang , Zhao Hanqi , Chen Yuanguang , Chen Guoliang
Published: March 2019

The use of tert-butyl(3-cyano-4,6-dimethylpyridin-2yl) carbonate as a chemoselective tert-butoxycarbonylation reagent for aromatic and aliphatic amines has been demonstrated (30 examples).
Metal free, facile sulfenylation of ketene dithioacetals catalyzed by an HBr–DMSO system
Authors: Sorabad Ganesh Shivayogappa , Maddani Mahagundappa Rachappa
Published: March 2019

A transition metal free, efficient, sulfenylation of ketene dithioacetals catalyzed by an HBr–DMSO system is achieved. This strategy employs inexpensive and readily available HBr and DMSO to provide a direct C–H bond sulfenylation with a broad range of aryl thiols. This sulfenylated product is also transformed for the synthesis of pyrazole derivatives in excellent yield.
Facile preparation of Eu3+-activated Ca7(VO4)4O nanoparticles: a blue light-triggered red-emitting platform for indoor solid-state lighting
Authors: Du Peng , Zhou Luhui , Luo Laihui , Yu Jae Su
Published: March 2019

Eu3+-Activated Ca7(VO4)4O nanoparticles with excellent luminescence behavior and good colorific properties for blue chip based WLED applications.
A ZnO nanowire-based microfiber coupler for all-optical photodetection applications
Authors: Zhang Longfei , Wang Ying , Wu Han , Hou Maoxiang , Wang Jingru , Zhang Lichao , Liao Changrui , Liu Shen , Wang Yiping
Published: March 2019

A novel ZnO nanowire-based microfiber coupler is demonstrated for all-optical photodetection without the demand of photocurrent generation, which exhibits a fast response time of 0.43 ms.
Cyclopropane–alkene metathesis by gold(i)-catalyzed decarbenation of persistent cyclopropanes
Authors: Mato Mauro , Martín-Torres Inmaculada , Herlé Bart , Echavarren Antonio M.
Published: March 2019

Benzo-fused norcaradienes derived from naphthalene and phenanthrene undergo gold(i)-catalyzed cyclopropane–alkene metathesis via decarbenation.
Mechanistic investigation of superelectrophilic activation of 1,1′-bi-2-naphthols in the presence of aluminum halides
Authors: Zhu Zhongwei , Genaev Alexander M. , Salnikov George E. , Koltunov Konstantin Yu.
Published: March 2019

On the basis of a combined experimental and theoretical (DFT) study, the principal possibility and also the main restrictions for the selective modification of BINOLs via the superelectrophilic activation approach are shown.
Facile preparation of radium-doped, functionalized nanoparticles as carriers for targeted alpha therapy
Authors: Reissig Falco , Hübner René , Steinbach Jörg , Pietzsch Hans-Jürgen , Mamat Constantin
Published: March 2019

A facile preparation of nanoparticles with enhanced properties obtained by co-precipitation containing radium-224 and functional groups to connect target (bio)molecules for therapeutic applications in oncology is described.
Electric field effect in a Co3O4/TiO2 p–n junction for superior lithium-ion storage
Authors: Kong Huabin , Yan Chunshuang , Lv Chade , Pei Jian , Chen Gang
Published: March 2019

Porous Co3O4/TiO2 nanosheets (P-Co3O4/TiO2 NSs) have been synthesized to construct a p–n junction via coating TiO2 on Co3O4 nanosheets.
Carbon-based materials for lithium-ion capacitors
Authors: Wang Xiaojun , Liu Lili , Niu Zhiqiang
Published: March 2019

Lithium-ion capacitors (LICs) can deliver high energy density, large power density and excellent stability since they possess a high-capacity battery-type electrode and a high rate capacitor-type electrode.
Comparative study of antidiabetic, bactericidal, and antitumor activities of MEL@AgNPs, MEL@ZnONPs, and Ag–ZnO/MEL/GA nanocomposites prepared by using MEL and gum arabic
Authors: Bakur Abdelmoneim , Elshaarani Tarig , Niu Yongwu , Chen Qihe
Published: March 2019

MEL@AgNPs, MEL@ZnONPs, and Ag–ZnO/MEL/GA nanocomposites were successfully prepared by using mannosylerythritol lipids (MEL) and gum arabic.
“All-in-Gel” design for supercapacitors towards solid-state energy devices with thermal and mechanical compliance
Authors: Yin Chengyao , Liu Xinhua , Wei Junjie , Tan Rui , Zhou Jie , Ouyang Mengzheng , Wang Huizhi , Cooper Samuel J. , Wu Billy , George Chandramohan , Wang Qigang
Published: March 2019

“All-in-gel” supercapacitor is designed via ionogel composite electrolyte and Bucky gel electrodes. These flexible, conductive and shape-conformable gels represent a step change in the design of safe energy storage devices for wearable electronics, in particular those facing the increased demands of hazardous operational environments.
Co9S8 embedded into N/S doped carbon composites: in situ derivation from a sulfonate-based metal–organic framework and its electrochemical properties
Authors: Chen Lin , Yang Wenjuan , Li Xiaoyu , Han Lijing , Wei Mingdeng
Published: March 2019

Co9S8/NSC was synthesized via an in situ transformation from a sulfonate-based Co-MOF without additional sulfur source, delivering long-term cycling stability.
BX1–BX2 (X1, X2 = P, As, Sb) lateral heterostructure: novel and efficient two-dimensional photovoltaic materials with ultra-high carrier mobilities
Authors: Wang Qiang , Li Jianwei , Liang Yan , Wang Bin , Nie Yihang
Published: March 2019

BX1–BX2 (X1, X2 = P, As, Sb) lateral heterostructures: novel and efficient two-dimensional photovoltaic materials with ultra-high carrier mobilities and photocurrents.
Interface electron polarization based high-k Al2O3/ZnO nanolaminates with excellent temperature stability and ultrahigh energy-storage density by atomic layer deposition
Authors: Li Jin , Liu Maowen , Bi Xiaofang
Published: March 2019

Interface electron polarization based high-k Al2O3/ZnO nanolaminates with excellent temperature stability and ultrahigh energy-storage density by atomic layer deposition.
Promoting defective-Li2O2 formation via Na doping for Li–O2 batteries with low charge overpotentials
Authors: Lyu Zhiyang , Wang Tao , Guo Rui , Zhou Yin , Chen Junchao , Wang Xiao , Lin Ming , Tian XinXin , Lai Min , Peng Luming , Wang Li , Peng Zhangquan , Chen Wei
Published: March 2019

An approach to reduce charge overpotentials of the aprotic Li–O2 batteries is demonstrated through the formation of Na-doped defective Li2O2 by adding Na+ cations into the electrolyte.
Electrochemically induced highly ion conductive porous scaffolds to stabilize lithium deposition for lithium metal anodes
Authors: Chen Qiulin , Yang Yifang , Zheng Hongfei , Xie Qingshui , Yan Xiaolin , Ma Yating , Wang Laisen , Peng Dong-Liang
Published: March 2019

The electrochemically-induced lithiophilic Li–Zn alloy scaffold with high ionic conductivity, together with the Li2O passivated surface, can reduce the nucleation overpotential of Li deposition, enhance the Li+ ions diffusion and guide the homogeneous nucleation of Li, and thus suppressing the lithium dendrite growth.
A C60/TiOx bilayer for conformal growth of perovskite films for UV stable perovskite solar cells
Authors: Liu Cheng , Cai Molang , Yang Yi , Arain Zulqarnain , Ding Yong , Shi Xiaoqiang , Shi Pengju , Ma Shuang , Hayat Tasawar , Alsaedi Ahmed , Wu Jihuai , Dai Songyuan , Cao Guozhong
Published: March 2019

A low-temperature-processed C60/ultrathin-TiO2 bilayer is successfully designed as an ETL for high-performance and UV-stable perovskite solar cells (1 cm2).
A novel BODIPY-based MOF photocatalyst for efficient visible-light-driven hydrogen evolution
Authors: Yang Heng , Wang Jinming , Ma Ji , Yang Hong , Zhang Jing , Lv Kangle , Wen Lili , Peng Tianyou
Published: March 2019

The first BODIPY-based MOF decorated with a Pt co-catalyst exhibited efficient photocatalytic H2 evolution under visible-light illumination, representing the most visible-light photoactive MOF material for H2 evolution from water thus far.
Hexagonal plate-like Ni–Co–Mn hydroxide nanostructures to achieve high energy density of hybrid supercapacitors
Authors: Sivakumar Periyasamy , Jana Milan , Jung Min Gyu , Gedanken Aharon , Park Ho Seok
Published: March 2019

Nanostructured mixed multi-metal compounds (NCM) based on nickel (Ni), cobalt (Co), and manganese (Mn) are considered as promising electrode materials owing to their multiple valence states, facile accessibility to active sites, and low activation energy for electron transfer.
Photovoltaic properties of a triple cation methylammonium/formamidinium/phenylethylammonium tin iodide perovskite
Authors: Rath Thomas , Handl Jasmin , Weber Stefan , Friesenbichler Bastian , Fürk Peter , Troi Lukas , Dimopoulos Theodoros , Kunert Birgit , Resel Roland , Trimmel Gregor
Published: March 2019

Solar cells based on the novel triple cation tin perovskite MA0.75FA0.15PEA0.1SnI3 exhibit PCEs of 5.0% and notably good stability over more than 5000 hours.
Enhanced hyperthermic properties of biocompatible zinc ferrite nanoparticles with a charged polysaccharide coating
Authors: Lachowicz Dorota , Górka Weronika , Kmita Angelika , Bernasik Andrzej , Żukrowski Jan , Szczerba Wojciech , Sikora Marcin , Kapusta Czesław , Zapotoczny Szczepan
Published: March 2019

Zinc doping of superparamagnetic iron oxide nanoparticles coated with an ionic derivative of chitosan significantly improves their properties for magnetic hyperthermia.
Persistent luminescent multifunctional drug delivery nano-platform based on nanomaterial ZnGa2O4:Cr3+,Sn4+for imaging-guided cancer chemotherapy
Authors: Jiang Wenjing , Huang Lin , Mo Fan , Zhong Yingying , Xu Liangjun , Fu FengFu
Published: March 2019

A novel tumor-targeting and release-controllable drug delivery nano-platform with persistent luminescence was constructed for imaging-guided cancer chemotherapy based on the ZnGa2O4:Cr3+,Sn4+(ZGCS) nanoparticles.
Tricalcium silicate/graphene oxide bone cement with photothermal properties for tumor ablation
Authors: Xu Chen , Ma Bing , Peng Jinliang , Gao Long , Xu Yuhong , Huan Zhiguang , Chang Jiang
Published: March 2019

Illustration of the Tricalcium silicate/graphene oxide bone cement for bone tumor ablation.
Scattering-mediated absorption from heterogeneous nanoparticle assemblies in diblock copolymer micelles for SERS enhancement
Authors: Zakia Maulida , Song Hyerin , Song Chang Hyeon , Jin Seon-Mi , Lee Eunji , Won Yong Sun , Kim Kyujung , Kim Ki-Se , Yoon Jinhwan , Yoo Seong Il
Published: March 2019

A scattering-mediated absorption process from heterogeneous nanoparticle assemblies in polymer micelles provided an efficient approach for SERS enhancement.
Benzofuroacridine and benzothienoacridine as new donor moieties for emission color management of thermally activated delayed fluorescent emitters
Authors: Kang Yu Jin , Yun Ju Hui , Han Si Hyun , Lee Jun Yeob
Published: March 2019

A benzofuran and acridine merged moiety, 5,5-dimethyl-5,13-dihydrobenzofuro[3,2-c]acridine and a benzothiophene and acridine combined moiety, 5,5-dimethyl-5,13-dihydrobenzothieno[3,2-c]acridine were developed as strong donor moieties of thermally activated delayed fluorescent emitters.
Suppressing the thermal degradation of bismuth near-infrared luminescence in optical amorphous materials via topologically polymerized network structures
Authors: Wang Liping , Peng Mingying , Li Xingyu , Wang Yafei , Luo Haoyang , Cao Jiangkun , Li Xiaoman
Published: March 2019

Thermal degradation of Bi NIR emissions is completely inhibited via a polymerized glass network structure.
Core–shell structured CaS:Eu2+@CaZnOS via inward erosion growth to realize a super stable chalcogenide red phosphor
Authors: Wang Xiaofang , Qiu Zhongxian , Li Yanmei , Mi Qinghua , Zhou Wenli , Ai Shiyun , Xu Jing , Liu Yongfu , Lian Shixun
Published: March 2019

The fabrication of a CaZnOS shell prevents hydrolysis towards water and acid, and thermal quenching from heat of the red-emitting CaS:Eu2+ core.
P4 medicine for epilepsy and intellectual disability: nutritional therapy for inherited metabolic disease
Authors: Tseng Laura A. , Sowerbutt Claire , Lee Jessica J.Y. , van Karnebeek Clara D.M.
Published: March 2019

Early identification and treatment of inherited metabolic diseases (IMDs) are essential to prevent and minimize intellectual disability (ID) and epilepsy. The oldest form of treatment, nutritional modulation, has proved beneficial for many IMDs. These conditions represent a promising model for P4 medicine — predictive, preventive, personalized, and participatory — specifically through the interpretation of individual genetic, pathophysiological, and clinical characteristics. More than 1000 IMDs have been described, and for these different nutritional modulation strategies are applied, varying from substrate reduction, supplementation of vitamins for catalyzation of enzymatic reactions or supplementation of amino acids or other nutrients, to substitution for deficient or inactivated products. This review provides an overview of all IMDs presenting with epilepsy and/or ID amenable to nutritional modulation; these are 85 in number, belonging to 27 categories. Therapeutic strategies include protein-restricted diet, ketogenic diet, fat-restricted diet, lactose-restricted diet; supplementation of amino acids, carbohydrates, or others; and supplementation of vitamins or cofactors as well as a sick-day protocol. Nutritional therapies are generally safe, affordable, and accessible, but compliance is an issue. Three different types of response exist: (1) a positive effect on seizure control and/or psychomotor development; (2) efficacy in prevention of decompensation but ongoing damage occurs; and (3) insufficient insights or evidence to establish the treatment as effective. For the latter category, we describe pyridoxine-dependent epilepsy as a case vignette for P4 medicine, discuss the benefits and challenges of nutritional modulation in IMDs, and outline novel approaches and solutions.
Learning cross‐modal visual‐tactile representation using ensembled generative adversarial networks
Authors: Li Xinwu , Liu Huaping , Zhou Junfeng , Sun FuChun
Published: March 2019

In this study, the authors study a deep learning model that can convert vision into tactile information, so that different texture images can be fed back to the tactile signal close to the real tactile sensation after training and learning. This study focuses on the classification of different image visual information and its corresponding tactile feedback output mode. A training model of ensembled generative adversarial networks is proposed, which has the characteristics of simple training and stable efficiency of the result. At the same time, compared with the previous methods of judging the tactile output, in addition to subjective human perception, this study also provides an objective and quantitative evaluation system to verify the performance of the model. The experimental results show that the learning model can transform the visual information of the image into the tactile information, which is close to the real tactile sensation, and also verify the scientificity of the tactile evaluation method.
New adaptive fuzzy sliding mode scheme for speed control of linear switched reluctance motor
Authors: Azadru Allahverdi , Masoudi Siamak , Ghanizadeh Reza , Alemi Payam
Published: March 2019

This study presents a new control system for a linear switched reluctance motor (LSRM). Type‐2 Takati‐Sugeno fuzzy system is used for the motor approximation. The uncertain parameters of the motor are described by the lower and upper membership functions. By constructing an integral sliding mode surface, an adaptive sliding mode controller is designed and dynamic stability of the sliding motion is verified using the Lyapunov function. The design of the proposed sliding mode surface is independent of the number of fuzzy rules and thus, computational complexity is significantly decreased. The control system is implemented on a double‐sided four‐phase LSRM and its performance is demonstrated by means of modelling and experimental results.
Stochastic network constrained payment minimisation in electricity markets
Authors: Nouri Alireza , Hosseini Seyed Hamid , Keane Andrew
Published: March 2019

This study presents a novel framework to incorporate the uncertainties associated with load fluctuations and components’ availability in a day‐ahead joint energy‐reserve payment cost minimisation (PCM). The payments are calculated based on locational marginal prices (LMPs). Considering these uncertainties, appropriate definitions are not available for energy and reserve LMPs (RLMPs) that suit the probabilistic PCM formulation and reflect the market characteristics. A tri‐level optimisation framework is proposed. The optimisation variables in the first‐level optimisation include commitment status. In the second‐level optimisation, the production schedule and allocated reserves are the optimisation variables. The third‐level problem includes different sub‐problems, each of which related to optimisation of units’ production in a single scenario. This tri‐level optimisation is managed to be converted to a linear single‐level optimisation and is solved using an off‐the‐shelf branch‐and‐cut solver. The 10‐unit system is first used to show the impacts of varying the degree of uncertainties. The IEEE Reliability Test System is next analysed to validate the proposed formulation for RLMPs.
Combined triple band circularly polarised and compact UWB monopole antenna
Authors: Karmakar Anirban , Chakraborty Piyali , Banerjee Utsab , Saha Anuradha
Published: March 2019

A new design of a compact ultra‐wide band (UWB) monopole antenna with triple‐band, triple‐sense circular polarisation (CP) is presented here. It is composed of a compact quad‐circular monopole, a fractal parasitic ring resonator, a triangular ring resonator, rectangular ring resonator, and modified ‘T’ and ‘I’ shaped slots on the ground plane along with a rectangular stub with ‘E’‐shaped slot on the right side of the monopole. The proposed antenna radiates left‐hand circularly polarised (LHCP) wave at lower and mid‐frequency bands, while right‐hand circularly polarised (RHCP) wave at upper frequency band. The results show that the antenna covers an ultra‐wide bandwidth from 3.1 to 11 GHz (112%). Moreover, the proposed antenna achieves good CP characteristics at Citizens Broadband Radio Services in USA (3.55–3.72 GHz), artificial magnetic conductors and WLAN upper frequency spectrum (4.81–5.61 GHz), VSAT services & Satellite Communication and Ground Surveillance RADAR (9.29–10.95 GHz), respectively. Novelty of this article lies in designing a compact printed UWB monopole antenna with combined triple band CP characteristics controllable by adjusting the antenna design parameters. The simulated and measured results of the antenna have been compared and seen to be in reasonable agreement.
Modular implementation of transversal filter using transversal matrices and multi‐mode resonators
Authors: Guo Zai‐Cheng , Zhu Lei , Wong Sai‐Wai
Published: March 2019

This study, for the first time, presents an attractive property of transversal filters: modularity. That is, for a specified Nth‐order transversal filter, the N resonators could be divided into a number of modules and each module comprises arbitrary number and order of resonators, which could be implemented on a multi‐mode resonator. Thus, an Nth‐order filter could be synthesised by separately and independently synthesising different modules with lower orders, thus providing great flexibility, simplification and convenience in filter design. This property is realised by taking advantage of the independence between paths of transversal filters, which is guaranteed by the unique array of resonators of transversal filters. A class of transversal filter including bandpass filters and multi‐band filters are synthesised, fabricated, and measured. The synthesised results, along with the good measured results, verify the validity of the modularity property of transversal filters.
Performance enhancement using multiple‐input multiple‐output (MIMO) electronic relay in massive MIMO cellular networks
Authors: Ghallab Rna , Shokair Mona , Abou El‐Azm Atef , Sakr Ali , Saad Waleed , Naguib Ahmed
Published: March 2019

Device‐to‐device (D2D) communication system is considered one of the most effective technology directions for solving the spectrum scarcity problem in 5G wireless communication. In this study, an electronic relay is proposed to be utilised in D2D communication. The electronic relay is a hybrid cooperative relay consisting of compress and forward relay with and without coding techniques, decode and forward relay and amplify and forward relay with variable gain. The selection of the most appropriate one has performed automatically according to the feedback channel state information. Additionally, the multiple‐input multiple‐output (MIMO) electronic relay with the multi‐user and massive MIMO destination is introduced. The closed formulas of the outage probability for both cellular user and D2D transmission are derived. Furthermore, the analytical discussions for the proposed electronic relay are executed. Extensive MATLAB simulation programmes are executed to study the performance of the proposed system and to compare it with the conventional one. Moreover, the average sum rate is derived in terms of a number of electronic relay antennas and the D2D density through cellular networks.
Dual‐mode control of utility interactive microgrid
Authors: Kumar Shailendra , Singh Bhim
Published: March 2019

This article presents dual‐mode control of a single‐stage utility interactive microgrid based on a photovoltaic array and battery energy storage with improved power quality. For protection reasons, grid tied solar inverters are mandatory to shut down at loss of the grid. However, proposed multitasking microgrid is developed to provide energy to critical loads, even at disappearance of grid. The microgrid is integrated the BES and a PV array at DC link of voltage source converter of it to provide the harvested energy to local loads. In islanding, the amplitude and waveform of load voltages are maintained sinusoidal by the voltage controller. The transfer of modes (islanded to grid connected and vice‐versa) is implemented using the synchronisation controller as per the accessibility of the grid. The instantaneous characteristic‐based adaptive filter is utilised to control the microgrid in the grid‐integrated mode. Moreover, a PV feed‐forward term is incorporated in current control for injection of active power to the utility as well as to improve the dynamic response of microgrid. The phase detection controller estimates phase, frequency of utility and load voltages accurately and capability of disturbance rejection is improved. The effectiveness of PV‐BES‐based microgrid is validated experimentally.
Evaluation of radiated immunity tests using adjusted pulse modulated signals
Authors: Nogueira de São José Artur , Adriano Ricardo , Resende Úrsula do Carmo , Menezes Magno Alves de , Mary de Souza Batalha Rose , Fujioka Mologni Juliano
Published: March 2019

The main goals of an engineering test are reproducing a real scenario in a controlled environment and monitoring a device under validation when exposed to such condition. In this context, some recent studies have indicated misalignments between the waveforms suggested by the Radiated Immunity standards and the real telecommunication signals. Reproducing an actual signal in an electromagnetic compatibility laboratory might, however, be an expensive task, since it demands more sophisticated hardware. In this study, a simple solution for this problem is proposed based on adjustments applied to the standardised pulse modulated waveform. The objective is to develop an alternative to the traditional procedures, in an attempt to provide the manufacturers a more realistic test environment for their products. Mathematical manipulations indicate that a good agreement between the adjusted waveforms and a digital television signal cannot be simultaneously achieved in both time and frequency domains. Multiple trade‐off solutions are then generated and analysed through electromagnetic simulations. Results show that, in the 210–216 MHz frequency range, the pulse modulated signals model the digital television interference capability better than the classical continuous wave does.
Sum rate analysis of two‐unicast wireless energy harvesting system
Authors: Liu Yingting , Ding Haiyang , Pan Zhengwei , Yang Hongwu , Yan Chunman
Published: March 2019

The authors study the sum rate of a two‐unicast wireless energy harvesting system. The system consists of two source nodes, two destination nodes and one energy constrained relay node, which only harvests energy from the signals transmitted by the source nodes for its operation. Each source node transmits the signal to its corresponding destination node via the help of the relay node. The transmission process is divided into two time slots each with the same time duration. In the first time slot, two source nodes transmit the signals to the relay node and the destination nodes, and the relay node uses the power splitting (PS) protocol for harvesting energy. In the second time slot, adopting analogue network coding, the relay node retransmits the mixed signal to the destination nodes using the harvested energy. Considering network coding noise, the analytical expressions of a near optimal adaptive PS factor that leads to a maximal sum rate is derived. Numerical results corroborate the analytical results and show the superior performance of the proposed scheme in comparison with the conventional one.
Performance analysis of hybrid FSO/RF communication systems with Alamouti coding or antenna selection
Authors: Ali Amirabadi Mohammad , Tabataba Vakili Vahid
Published: March 2019

In this work, a novel dual‐hop relay‐assisted hybrid free space optical/radio frequency (FSO/RF) communication system is presented. In this system, RF signal is transmitted from two antennas, and then forwarded by a single antenna relay through FSO channel. This is the first time that performance of using Alamouti coding (AC) or antenna selection (AS) at the transmitter of a hybrid FSO/RF system is investigated. FSO link has gamma‐gamma atmospheric turbulence, and in order to get closer to the actual results, the effect of pointing error is also considered. For the first time closed‐form expressions are derived for bit error rate and outage probability of the proposed system and validated through MATLAB simulations. Results indicate that in this structure, there is slight performance difference between AC and AS schemes. Hence, due to more complexity, power consumption and latency of AC, AS is recommended. Dual‐hop, hybrid FSO/RF system significantly improves performance and reliability of the system, and is particularly suitable for long‐range applications that direct RF communication between source and destination is not possible. Considering these advantages this structure is particularly suitable for mobile communications which has power and processing limitations.
Flow Electrochemical Cyclizations via Amidyl Radicals: Easy Access to Cyclic Ureas
Authors: Ahmed Nisar , Vgenopoulou Aggeliki
Published: March 2019

Flow chemistry has advantages over batch processes and can achieve the synthesis of substances in high yield under safe working conditions. The combination of electrochemistry and flow microreactor technology has made chemical transformations possible without the use of oxidants or catalysts. Herein, we report flow electrosynthesis of cyclic ureas via oxyamination of N-allylic ureas. We have found that continuous flow is able to outperform its batch counterpart, producing cyclic ureas in excellent yields.
Pull-Type Radiologically Inserted Gastrostomy: An Improvised Technique Using a Frugal Innovation
Authors: Chahal Anurag , Malla Sundeep , Dash Chinmaya , Gupta Deepak , Gamanagatti Shivanand
Published: March 2019

Purpose To describe a new technique for “pull type” radiologically inserted gastrostomy (RIG) and prospectively compare it with conventional (described) technique in terms of technical ease (fluoroscopy time, radiation dose) and safety profile.

Materials and Methods Adult patients with head injury with Glasgow coma scale (GCS) (M score) < 5, one week after decompression or those requiring nutritional support for > 4 weeks, or patients with recurrent aspiration pneumonitis on nasogastric feeding were included. Hemodynamically unstable patients or those with uncorrectable coagulopathy were excluded. Patients underwent pull-type RIG with alternate patient getting allocated to groups A (conventional technique) and B (new technique). The authors compared the technical success, complication rate, fluoroscopy time, radiation dose, and cost of hardware in these two groups.

Results The average fluoroscopy time for group A (9 patients) was 498.7 ± 145.3 seconds, whereas for group B (16 patients), it was 302.8 ± 54.1 seconds with p-value = 0.06. The mean radiation dose of group A was 74.7 ± 15.7 mGy, whereas for group B, it was 56.7 ± 14.1 mGy (p-value = 0.004). The minor complication rates were 11.1% in both the groups.

Conclusion The authors’ innovative technique using a customized snare has the potential to increase the technical ease of pull-type RIG with reduced fluoroscopy time, radiation dose, and cost with a similar safety profile.
Incident Atrial Fibrillation, Dementia and the Role of Anticoagulation: A Population-Based Cohort Study
Authors: Field Thalia S. , Weijs Bob , Curcio Antonio , Giustozzi Michela , Sudikas Saulius , Katholing Anja , Wallenhorst Christopher , Weitz Jeffrey I. , Cohen Alexander T. , Martinez Carlos
Published: March 2019

Introduction Atrial fibrillation (AF) is associated with dementia. Anticoagulation may modify this relationship, but it is unclear if this is due to stroke reduction alone.

Methods Age- and sex-matched individuals from the U.K. Clinical Practice Research Datalink (2008–2016) with and without an incident diagnosis of AF were followed for a new dementia diagnosis. We estimated adjusted hazard ratios (aHRs) for incident dementia diagnosis in the AF cohort, overall and stratified by anticoagulation status, using the matched non-AF cohorts as reference. We performed a sensitivity analysis excluding individuals with stroke/transient ischaemic attack (TIA) before the observation period.

Results Over 193,082 person-years (mean follow-up 25.7 ± 0.1 months), 347/15,276 AF (2.3%) and 1,085/76,096 non-AF (1.4%) were newly diagnosed with dementia (aHR, 1.31, 95% confidence interval, 1.15–1.49). The AF group had more co-morbidity and higher rates of dementia, both with and without anticoagulation, than non-AF. When those with history of stroke/ TIA before the observation period were excluded and those with incident stroke/TIA during the observation period were censored, AF individuals not on anticoagulation had significantly higher rates of dementia compared with non-AF, aHR 1.30 (1.06–1.58).

Conclusion Our findings support the hypothesis that AF is a distinct risk factor for dementia, independent of stroke/TIA and other vascular risk factors. In those without stroke/TIA, risk of dementia is increased only in those who are not on anticoagulation, suggesting anticoagulation is protective presumably through reduction of sub-clinical embolic events. Further prospective research is needed to better ascertain the role of anticoagulation amongst targeted therapeutic strategies to reduce cognitive decline in AF.
The Disulfide Bond between Cys22 and Cys27 in the Protease Domain Modulate Clotting Activity of Coagulation Factor X
Authors: Li Fang , Chen Changming , Qu Si-Ying , Zhao Ming-Zhu , Xie Xiaoling , Wu Xi , Li Lei , Wang Xuefeng , Ding Qiulan , Xu Qin , Wei Dong-Qing , Wu Wenman
Published: March 2019

The Cys22-Cys27 disulfide bond of factor X (FX) protease domain is not conserved among coagulation factors and its contribution to the physiological haemostasis and implication in the pathogenesis of haemostatic and thrombotic disorders remain to be elucidated. Mutation p.Cys27Ser was identified in a pedigree of congenital FX deficiency and fluorescence labelling study of transiently transfected HEK293 cells showed accumulation of FX p.Cys27Ser within cell, indicating incompetent secretion partially responsible for the FX deficiency. The clotting activity of FX p.Cys27Ser was decreased to about 90% of wild-type, while amidolytic and pro-thrombinase activities (kcat/Km) determined with recombinant FXa mutant were 1.33- and 4.77-fold lower. Molecular dynamic simulations revealed no major change in global structure between FXa p.Cys27Ser and wild-type FXa; however, without the Cys22-Cys27 disulfide bond, the insertion of newly formed N terminal of catalytic domain after the activation cleavage is hindered, perturbing the conformation transition from zymogen to enzyme. The crystal structure of FXa shows that this disulfide bond is solvent accessible, indicating that its stability might be subject to the oxidation/reduction balance. As demonstrated with FX p.Cys27Ser here, Cys22-Cys27 disulfide bond may modulate FX clotting activity, with reduced FX pertaining less pro-coagulant activity.
Neonatal Functional and Structural Connectivity Are Associated with Cerebral Palsy at Two Years of Age
Authors: Merhar Stephanie L. , Gozdas Elveda , Tkach Jean A. , Parikh Nehal A. , Kline-Fath Beth M. , He Lili , Yuan Weihong , Altaye Mekibib , Leach James L. , Holland Scott K.
Published: March 2019

Objective The accuracy of structural magnetic resonance imaging (MRI) to predict later cerebral palsy (CP) in newborns with perinatal brain injury is variable. Diffusion tensor imaging (DTI) and task-based functional MRI (fMRI) show promise as predictive tools. We hypothesized that infants who later developed CP would have reduced structural and functional connectivity as compared with those without CP.

Study Design We performed DTI and fMRI using a passive motor task at 40 to 48 weeks' postmenstrual age in 12 infants with perinatal brain injury. CP was diagnosed at age 2 using a standardized examination.

Results Five infants had CP at 2 years of age, and seven did not have CP. Tract-based spatial statistics showed a widespread reduction of fractional anisotropy (FA) in almost all white matter tracts in the CP group. Using the median FA value in the corticospinal tracts as a cutoff, FA was 100% sensitive and 86% specific to predict CP compared with a sensitivity of 60 to 80% and a specificity of 71% for structural MRI. During fMRI, the CP group had reduced functional connectivity from the right supplemental motor area as compared with the non-CP group.

Conclusion DTI and fMRI obtained soon after birth are potential biomarkers to predict CP in newborns with perinatal brain injury.
Higher Function Scores and Satisfaction in Patients with Anteromedial Osteoarthritis Compared with Other Wear Patterns of the Knee: 2 Years after Both Total and Unicondylar Knee Arthroplasties
Authors: Witjes Suzanne , Hoorntje Alexander , Koenraadt Koen L. M. , Kerkhoffs Gino M. M. J. , van Geenen Rutger C. I.
Published: March 2019

Anteromedial osteoarthritis (AMOA) is a common wear pattern in primary osteoarthritic knees. In patients with bone-on-bone disease, the most appropriate surgical intervention is still a matter of debate. Knee arthroplasty is a well-accepted treatment to relieve symptoms and regain function. Unfortunately, satisfaction is limited, especially related to activities. A cross-sectional study was performed among patients treated with total knee arthroplasty (TKA) and unicondylar arthroplasty (UKA) to determine if the osteoarthritis wear pattern or type of prosthesis affects knee-specific function scores and satisfaction related to activities. All UKA patients (N = 100) were treated for AMOA. Based on radiological assessment of the wear pattern, TKA patients were divided into two groups: TKA for AMOA (N = 68) and true TKA (N = 99). The Knee injury and Osteoarthritis Outcomes Score (KOOS), new Knee Society score (KSS), anterior knee pain scale, visual analog scales (VASs) for satisfaction about activities, and net promoter score were collected. After 2 years' follow-up, the anterior knee pain scale and VAS satisfaction showed significantly better scores for patients treated with TKA for AMOA compared with the true TKA group. Also in the KOOS subscales, some differences were seen in favor of the TKA for AMOA group. The new KSS was not in favor of a specific wear pattern, but patients with AMOA treated with UKA performed better on the symptoms subscale compared with patients treated with TKA. In conclusion, patients treated with TKA for AMOA showed better knee-specific function scores and satisfaction scores compared with patients treated with TKA for other wear patterns, and only slight differences were found between both the AMOA groups (TKA for AMOA and UKA). Thus, the radiologic assessment of wear patterns might be useful to take into account the shared decision-making process, when discussing expectations, timing, and outcomes with knee osteoarthritis patients considering knee arthroplasty. When AMOA is present, it might be beneficial to choose UKA over TKA.
A streaked parabolic crystal imaging diagnostic at the Orion laser
Authors: James Steven F. , Allan Peter , Brown Colin R. D. , Hill Matthew P. , Hobbs Lauren M. R. , Kemshall Paul A. , Hoarty David J.
Published: March 2019

We report on a novel scheme for the imaging of soft X-rays using a parabolic crystal coupled to a fast X-ray streak camera. The merits of parabolic, and more generally aspheric imaging, are discussed in relation to conventional spherical schemes and calculations used to show the advantages. An example of such a system has been designed and built at the Orion laser, AWE Aldermaston, UK. The system’s parameters are set out, and the approaches to the operational challenges are presented. The system has been used on high-energy density physics experiments to measure the release isentrope of warm dense matter states. Time-integrated and temporally resolved results are shown, demonstrating 5 μm spatial resolution (6 μm across a 200 μm field-of-view) and 10 ps temporal resolution. A discussion of the resolution-limiting factors is presented, along with possible applications and future improvements.