bluuebunny/crossref_metadata_2025 huggingface dataset:
Pathways to electrochemical solar-hydrogen technologies
Authors: Ardo Shane , Fernandez Rivas David , Modestino Miguel A. , Schulze Greiving Verena , Abdi Fatwa F. , Alarcon Llado Esther , Artero Vincent , Ayers Katherine , Battaglia Corsin , Becker Jan-Philipp , Bederak Dmytro , Berger Alan , Buda Francesco , Chinello Enrico , Dam Bernard , Di Palma Valerio , Edvinsson Tomas , Fujii Katsushi , Gardeniers Han , Geerlings Hans , H. Hashemi S. Mohammad , Haussener Sophia , Houle Frances , Huskens Jurriaan , James Brian D. , Konrad Kornelia , Kudo Akihiko , Kunturu Pramod Patil , Lohse Detlef , Mei Bastian , Miller Eric L. , Moore Gary F. , Muller Jiri , Orchard Katherine L. , Rosser Timothy E. , Saadi Fadl H. , Schüttauf Jan-Willem , Seger Brian , Sheehan Stafford W. , Smith Wilson A. , Spurgeon Joshua , Tang Maureen H. , van de Krol Roel , Vesborg Peter C. K. , Westerik Pieter
Published: June 2018

Several application fields can benefit from solar-hydrogen technologies via specific short-term and long-term pathways.
Separation and detection of mutans streptococci by using magnetic nanoparticles stabilized with a cell wall binding domain-conjugated polymer
Authors: Thanyasrisung Panida , Vittayaprasit Aemvika , Matangkasombut Oranart , Sugai Motoyuki , Na Nongkai Piyaporn , Saipia Suttawan , Hoven Voravee P.
Published: June 2018

Colorimetric assay based on magnetic separation/selective filtration can differentiate salivary mutans streptococci levels relevant for dental caries risk assessment.
A fixed-point titration method for the determination of ammonium in anaerobic systems
Authors: Mu Zhe-Xuan , He Chuan-Shu , Jiang Jian-Kai , Mu Yang
Published: June 2018

High ammonia nitrogen concentrations inhibit methanogenic activity and induce digester upset or failure.
Probing into dimension and shape control mechanism of copper(i) sulfide nanomaterials via solventless thermolysis based on mesogenic thiolate precursors
Authors: Duan Junfei , Liu Liang , Wu Zhongying , Fang Jianglin , Chen Dongzhong
Published: June 2018

Well-controlled Cu2S nanomaterials mediated by the confined space of the undulated lamellar structures of mesogenic thiolate precursors.
On the significance of weak hydrogen bonds in crystal packing: a large databank comparison of polymorphic structures
Authors: Lo Presti Leonardo
Published: June 2018

Weak hydrogen bonds control initial molecular recognition modes, but the structure is determined by the interactions among larger supramolecular assemblies.
Understanding solid-state photoswitching in [Re(OMe2-bpy)(CO)3(η1-NO2)] crystals via in situ photocrystallography
Authors: Hatcher Lauren E.
Published: June 2018

Single-crystal-to-single-crystal linkage isomerism is determined in a photoswitchable Re(i)-bpy crystal, shedding new light on the photoactive properties of potential Re(i)-photocatalysts.
Stimulating intra- and intermolecular charge transfer and nonlinear optical response for biphenalenyl biradicaloid dimer under an external electric field
Authors: Gao Feng-Wei , Xu Hong-Liang , Muhammad Shabbir , Su Zhong-Min
Published: June 2018

External electric fields were found to induce intra- and intermolecular charge transfer and strengthen the second-order nonlinear optical responses of π-dimers.
Measuring viscosity inside mesoporous silica using protein-bound molecular rotor probe
Authors: Nabavi Zadeh Pegah S. , Zezzi do Valle Gomes Milene , Abrahamsson Maria , Palmqvist Anders E. C. , Åkerman Björn
Published: June 2018

Fluorescence spectroscopy of protein-bound molecular rotors Cy3 and Cy5 is used to monitor the effective viscosity inside the pores of two types of mesoporous silica (SBA-15 and MCF) with pore diameters between 8.9 and 33 nm.
An ab initio multiple cloning approach for the simulation of photoinduced dynamics in conjugated molecules
Authors: Freixas Victor M. , Fernandez-Alberti Sebastian , Makhov Dmitry V. , Tretiak Sergei , Shalashilin Dmitrii
Published: June 2018

Multidimensional wave function: a superposition of Gaussian coherent states guided by Ehrenfest trajectories suited to clone and swap their electronic amplitudes.
First-principles studies of polar perovskite KTaO3surfaces: structural reconstruction, charge compensation, and stability diagram
Authors: Wang Yaqin , Cheng Jianli , Behtash Maziar , Tang Wu , Luo Jian , Yang Kesong
Published: June 2018

First-principles calculations predict a surface phase stability diagram for the polar perovskite KTaO3.
Phosphinecarboxamide as an unexpected phosphorus precursor in the chemical vapour deposition of zinc phosphide thin films
Authors: Beddoe Samuel V. F. , Cosham Samuel D. , Kulak Alexander N. , Jupp Andrew R. , Goicoechea Jose M. , Hyett Geoffrey
Published: June 2018

Phosphinecarboxamide and zinc acetate have been used to form thin films of zinc phosphide via aerosol assisted chemical vapour deposition.
Seven-coordinate lanthanide complexes with a tripodal redox active ligand: structural, electrochemical and spectroscopic investigations
Authors: Molloy Jennifer K. , Philouze Christian , Fedele Lionel , Imbert Daniel , Jarjayes Olivier , Thomas Fabrice
Published: June 2018

One-electron oxidation of the lanthanide complexes affords phenoxyl radical species. Radical formation is accompanied by a quenching of the metal-based luminescence.
Layered ferrimagnets constructed from charge-transferred paddlewheel [Ru2] units and TCNQ derivatives: the importance of interlayer translational distance in determining magnetic ground state
Authors: Kosaka Wataru , Liu Zhaoyuan , Miyasaka Hitoshi
Published: June 2018

In D2A-type layered magnets composed of paddlewheel-type diruthenium(ii,ii) complexes and TCNQ derivatives, is it a ferrimagnet or an antiferromagnet?
A Co(ii) framework derived from a tris(4-(triazol-1-yl)phenyl)amine redox-active linker: an electrochemical and magnetic study
Authors: Ngue Chin-May , Chiu Ching-Wen , Lee Gene-Hsiang , Peng Shie-Ming , Leung Man-Kit , Yang Chen-I. , Liu Yen-Hsiang , Lu Kuang-Lieh
Published: June 2018

This is a rare case of a solid-state electrochemical and spectroelectrochemical study of coordination polymers. Furthermore, the framework exhibits an interesting field-induced magnetic spin-flop transition.
Dietary methionine restriction regulated energy and protein homeostasis by improving thyroid function in high fat diet mice
Authors: Yang Yuhui , Zhang Jiahong , Wu Guoqing , Sun Jin , Wang Yanan , Guo Haitao , Shi Yonghui , Cheng Xiangrong , Tang Xue , Le Guowei
Published: June 2018

Dietary methionine restriction regulated energy and protein homeostasis by improving thyroid function in high fat diet mice.
AquaBoxIL – a computational tool for determining the environmental distribution profile of ionic liquids
Authors: Barycki Maciej , Sosnowska Anita , Puzyn Tomasz
Published: June 2018

We present the AquaBoxIL tool for comparing the ionic liquids (ILs) in terms of their theoretical Environmental Distribution Profile (EDP). The EDP is defined as the most possible scenario of IL's distribution among water, sediment and organic matter (representing biota) in case of their deposition in the environment.
Low-power, low-cost urinalysis system with integrated dipstick evaluation and microscopic analysis
Authors: Smith Gennifer T. , Li Linkai , Zhu Yue , Bowden Audrey K.
Published: June 2018

A device for coupled dipstick and microscopy urinalysis with the potential to be an at-home or low-resource platform.
Recyclable imidazolium ion-tagged nickel catalyst for microwave-assisted C–S cross-coupling in water using sulfonyl hydrazide as the sulfur source
Authors: Saini Vaishali , Khungar Bharti
Published: June 2018

Recyclable nickel(ii) catalyst promoted sulfenylation of aryl halides with sulfonyl hydrazides in water using microwave irradiation under mild conditions is reported.
A facile approach for the synthesis of Z-scheme photocatalyst ZIF-8/g-C3N4 with highly enhanced photocatalytic activity under simulated sunlight
Authors: Liu Xiang , Zhang Jing , Dong Yuming , Li Hexing , Xia Yongmei , Wang Haijun
Published: June 2018

The enhanced photocatalytic activity of ZIF-8/g-C3N4 composites can be attributed to strong interfacial interaction, which promoted the photo-generated electron–hole separation.
Two azo-functionalized luminescent 3D Cd(ii) MOFs for highly selective detection of Fe3+ and Al3+
Authors: Chand Santanu , Mondal Manas , Pal Shyam Chand , Pal Arun , Maji Sinchan , Mandal Debaprasad , Das Madhab C.
Published: June 2018

Two 3D luminescent Cd(ii) MOFs (Cd-MOF-1 and Cd-MOF-2) exposing azo functional sites displayed selective detection of Fe3+ and Al3+ metal ions with high sensitivities.
Copper (ii) dimers stabilized by bis(phenol) amine ligands: theoretical and experimental insights
Authors: Rajput Amit , Kumar Akhilesh , Sengupta Arunava , Tyagi Priyanka , Arora Himanshu
Published: June 2018

Comparative structural and magnetic studies on the binuclear Cu complexes of 1L(2−)/2L(2−) have been done and their electronic structures and observed electronic transitions (DFT and TD-DFT calculations) rationalized. The dimer complex can be converted into the corresponding monomeric Cu(ii) complex, [1L2CuII2(X)] (X = py), by adding an exogenous ligand such as pyridine (py).
New solvent-stabilized few-layer black phosphorus for antibacterial applications
Authors: Sun Zhenyu , Zhang Yuqin , Yu Hao , Yan Chao , Liu Yongchao , Hong Song , Tao Hengcong , Robertson Alex W. , Wang Zhuo , Pádua Agílio A. H.
Published: June 2018

We demonstrate a new and harmless molecule N,N′-dimethylpropyleneurea (DMPU) for efficient exfoliation and dispersion of BP, showing promising antibacterial application.
Synthesis and characterization of amino glucose-functionalized silica-coated NiFe2O4 nanoparticles: a heterogeneous, new and magnetically separable catalyst for the solvent-free synthesis of pyrano[3,2-c]chromen-5(4H)-ones
Authors: Fekri Leila Zare , Nikpassand Mohammad , Pourmirzajani Sakineh , Aghazadeh Behnaz
Published: June 2018

We have developed NiFe2O4@SiO2@glucose amine as a new, mild and efficient avenue for the synthesis of pyrano[3,2-c]chromen-5(4H)-ones.
Facile synthesis of partially oxidized Mn3O4-functionalized carbon cathodes for rechargeable Li–O2 batteries
Authors: Kim Juhyoung , Kang Inhan , Kim Soyeon , Kang Jungwon
Published: June 2018

Only a small amount of manganese oxide species (<5%) in carbon shows catalytic effects during charging in a rechargeable Li–O2 cell.
Bioprinting of 3D tissues/organs combined with microfluidics
Authors: Ma Jingyun , Wang Yachen , Liu Jing
Published: June 2018

Combinations of 3D bioprinting and microfluidics could complement each other to create artificial tissues and organs with complex architectures.
Silicon-coordinated nitrogen-doped graphene as a promising metal-free catalyst for N2O reduction by CO: a theoretical study
Authors: Junkaew Anchalee , Namuangruk Supawadee , Maitarad Phornphimon , Ehara Masahiro
Published: June 2018

Mechanistic insight into the N2O reduction and CO oxidation on SiN4G is reported in this theoretical study. The high reactive and selective SiN4 center leads this metal-free catalyst as a promising catalyst for this reaction under mild conditions.
Biochar preparation fromSolidago canadensisand its alleviation of the inhibition of tomato seed germination by allelochemicals
Authors: Zhang Zhicheng , Chen Luxi , Wang Jiang , Yao Jun , Li Junmin
Published: June 2018

The feasibility of amending the soil ofSolidago canadensisinvaded sites with biochar produced fromSolidago canadensiswas explored.
First-principles study on the electrical and thermal properties of the semiconducting Sc3(CN)F2 MXene
Authors: Luo Kan , Zha Xian-Hu , Zhou Yuhong , Guo Zhansheng , Lin Cheng-Te , Huang Qing , Zhou Shenghu , Zhang Ruifeng , Du Shiyu
Published: June 2018

The two-dimensional semiconducting Sc3(CN)F2 MXene presents relatively high carrier mobilities, specific heat and low thermal expansion coefficient from DFT calculations, and produces a good application prospect for nanoelectronic devices.
Walnut (Juglans regiaL.) shell pyroligneous acid: chemical constituents and functional applications
Authors: Jahanban-Esfahlan Ali , Amarowicz Ryszard
Published: June 2018

Upon the processing of different agricultural products, considerable amounts of by-products and bio-wastes are produced and discarded or burnt as fuel, which are a potential source of valuable compounds.
Numerical investigation of terahertz polarization-independent multiband ultrahigh refractive index metamaterial by bilayer metallic rectangular ring structure
Authors: Fang Bo , Chen Lin , Deng Yuqiang , Jing Xufeng , Li Xue
Published: June 2018

Multiband high index of refraction can be realized by thin ring-type terahertz metamaterials composed of multilayer coupled unit cells.
Tubular and lamellar hydrogen-bonding molecular assemblies of isophthalic acid derivatives bearing a –CONHCnH2n+1 chain
Authors: Lv Chao , Takeda Takashi , Hoshino Norihisa , Akutagawa Tomoyuki
Published: June 2018

Isophthalic acid derivatives (CnIP), bearing alkylamide chains at the 5-position that can participate in hydrogen bonding, were prepared and evaluated for their hydrogen-bonding molecular assembly structures for organogelation and liquid crystal formation.
Sulfonated covalent triazine-based frameworks as catalysts for the hydrolysis of cellobiose to glucose
Authors: Artz Jens , Delidovich Irina , Pilaski Moritz , Niemeier Johannes , Kübber Britta Maria , Rahimi Khosrow , Palkovits Regina
Published: June 2018

Novel post-synthetically sulfonated covalent triazine-based frameworks (S-CTFs) enable selective hydrolysis of cellobiose to glucose at rather high substrate-to-catalyst weight ratios.
Meeting important educational goals for chemistry through service-learning
Authors: Sewry Joyce D. , Paphitis Sharli A.
Published: June 2018

This paper describes a service-learning course in Chemistry Honours at Rhodes University in South Africa. Students visit two schools in different settings, where they present a lecture-demonstration, entitled ‘A Pollutant's Tale’, and two hands-on experiments to school learners. The students are assessed on their learnings as seen through their own reflections on the activities in reflective journals. The reflections from 27 students over four years of the course were analysed to investigate to what extent the educational goals of the course were being met. Six broad themes emerged from student reflections: (1) social awareness; (2) civic responsibility; (3) challenging beliefs; (4) enhanced understanding of science communication and demonstration skills; (5) personal growth; and, (6) evaluating the service-learning experience. In our discussion of these themes, we suggest that through service-learning, students have learnt to do things differently in Chemistry: they have learnt about society beyond the laboratory and beyond their previous life-experiences. Importantly, the students have undergone personal development and picked up critical skills which they will need when traversing life and its challenges – such as, working with and learning from diverse groups of people, teamwork and learning to cope in stressful situations. The paper will be of particular interest to those who are involved in chemistry teaching in both schools and higher education institutions, as well as those interested in service-learning as a pedagogical tool, community and civic engagement and the development of transferable skills in chemistry students.
Selective activation of organocatalysts by specific signals
Authors: Maity Chandan , Trausel Fanny , Eelkema Rienk
Published: June 2018

Activation of the responsive organocatalyst proline by three different signals allows temporal control over chemical reaction kinetics.
Microrheology of DNA hydrogel gelling and melting on cooling
Authors: Fernandez-Castanon Javier , Bianchi Silvio , Saglimbeni Filippo , Di Leonardo Roberto , Sciortino Francesco
Published: June 2018

Mechanical response of biocompatible all-DNA hydrogels with tuneable properties.
Unexpected reactivity of graphene oxide with DBU and DMF
Authors: Ramírez-Jiménez Rafael , Franco Mario , Rodrigo Eduardo , Sainz Raquel , Ferritto Rafael , Lamsabhi Al Mokhtar , Aceña José Luis , Cid M. Belén
Published: June 2018

Several nitrogen-containing graphene-derived materials have been obtained using DBU and DMF as nitrogen sources, and further employed as heterogeneous catalysts.
Further utilization of a Mn redox reaction via control of structural disorder in olivine systems
Authors: Kim Yunok , Yoo Jaeseung , Jang Donghyuk , Muhammad Shoaib , Jeong Mihee , Choi Woosung , Yoon Won-Sub
Published: June 2018

Anti-site defects are a critical factor for improving the electrochemical performance of olivines, and these defects can be decreased by introducing non-stoichiometry in the crystal structure that enables selective further oxidation of Mn in LiFe0.5−xMn0.5−xPO4−σ type olivine systems.
A biomimetic Setaria viridis-inspired electrode with polyaniline nanowire arrays aligned on MoO3@polypyrrole core–shell nanobelts
Authors: Liu Ying , Li Le , Zhu Jixin , Xu Jingsan , Liu Siliang , Wang Yufeng , Zhang Chao , Liu Tianxi
Published: June 2018

Benefiting from the structural superiority achieved by mimicking Setaria viridis, the resultant MoO3/PPy/PANI electrodes exhibit enhanced electrochemical activity including high capacitance and excellent cycling stability for supercapacitors.
Hydrogen-producing hyperthermophilic bacteria synthesized size-controllable fine gold nanoparticles with excellence for eradicating biofilm and antibacterial applications
Authors: Bing Wei , Sun Hanjun , Wang Faming , Song Yanqiu , Ren Jinsong
Published: June 2018

An environment-friendly strategy for the controllable preparation of AuNPs is presented, which exhibited high peroxidase activity over a broad pH range.
A tumor-mitochondria dual targeted aza-BODIPY-based nanotheranostic agent for multimodal imaging-guided phototherapy
Authors: Chen Dapeng , Zhang Jiaojiao , Tang Yunyun , Huang Xiaoyu , Shao Jinjun , Si Weili , Ji Jun , Zhang Qi , Huang Wei , Dong Xiaochen
Published: June 2018

Mitochondria targeted phototherapy, including photodynamic therapy (PDT) and photothermal therapy (PTT), has excelled as an effective approach among other non-specific techniques for its high selectivity, non-invasiveness and low systemic toxicity.
Molecular insight to size and dose-dependent cellular toxicity exhibited by a green synthesized bioceramic nanohybrid with macrophages for dental applications
Authors: Makkar Hardik , Verma Suresh K. , Panda Pritam Kumar , Pramanik Nandini , Jha Ealisha , Suar Mrutyunjay
Published: June 2018

Improvising bioceramics for enhancing their biocompatibility and physical properties has been a focus area for the dental industry.
Radar sea‐clutter modelling using fractional generalised Pareto distribution
Authors: Lefaida S. , Soltani F. , Mezache A.
Published: June 2018

A model for radar sea‐clutter derived from the fractional differentiation of compound Gaussian distribution with inverse gamma texture is presented. Different stages of fractional calculus are conducted to obtain the new probability density function (PDF) and cumulative distribution function with fractional order. To investigate the fitting of the proposed statistical model to real data, the curve fitting estimation method based on the Nelder–Mead algorithm is used to optimise the shape parameter, the scale parameter and the fractional derivative order. Compared to the generalised Pareto model with the maximum likelihood estimator, it is shown that the proposed fractional PDF models well the tail of IPIX real data especially when medium range resolutions are at hand.
Finite‐dimensional guaranteed cost sampled‐data fuzzy control of Markov jump distributed parameter systems via T–S fuzzy model
Authors: Ji Huihui , Zhang He , Cui Baotong
Published: June 2018

In this study, the authors are concerned with a finite‐dimensional guaranteed cost sampled‐data fuzzy control problem, which is addressed for a class of non‐linear Markov jump parabolic partial differential equation (MJPPDE) systems. Applying the Galerkin's method to the MJPPDE system, a non‐linear Markov jump ordinary differential equation (MJODE) system is derived. The resulting non‐linear MJODE system can describe the dominant dynamics of the MJPPDE system, which is subsequently expressed by the Takagi–Sugeno (T–S) fuzzy model. Then, a guaranteed cost sampled‐data fuzzy controller is developed to stabilise the closed‐loop slow fuzzy system exponentially in the mean‐square sense while providing an upper bound for the quadratic cost function. Making full use of their special features, they will be able to establish the bound on . The authors' theory enables us to guarantee the existence of the feedback controller and to judge the effectiveness of the feedback control based on the sampled‐data to stabilise the given system in the sense of mean‐square exponential stability.
Efficiency enhancement method without grid partitioning for hard real‐time transient simulation of large power grids
Authors: Zhang Shuqing , Zhu Yanan , Ou Kaijian , Yu Siqi , Guo Qi , Sun Yubo , Tong Luyuan
Published: June 2018

Efficient transient simulation of large power grid is of great importance for system operation and dispatching, fault repetition, operator training etc. Online stability estimation and testing on system control and protection require hard real‐time performance of transient simulation. The conventional real‐time simulation, which splits an entire grid into sub‐grids and solves them in parallel, lacks generality for various case systems. This study proposes a new efficiency enhancement method without grid partitioning. Three key techniques are involved. First, parallel solving format is proposed to distribute two‐layer computational burdens into central processing unit cores in balance. Second, to calculate the fault changing the grid structure, the inverse current compensation is employed instead of re‐forming impedance matrix and repeating lower‐upper (LU) decomposition. Third, dual‐loop forward and backward substitutions to solve grid equations are modified to a single‐loop iteration, which further improves the computational efficiency. At last, the validity and effectiveness of the proposed method are verified by tests.
Single‐mask fabrication of micro‐probe electrode array with various tip heights and sharpness using isotropic and anisotropic etching
Authors: Shin Young‐min , Kim Yong‐Kweon , Lee Seung‐Ki , Park Jae‐Hyoung
Published: June 2018

In this work, a silicon‐based micro‐probe array was fabricated using multi‐step deep reactive ion etching (DRIE) and reactive ion etching (RIE) processes. The micro‐probe structure was implemented using a micromachining technique through a combination of two anisotropic DRIE and two isotropic RIE processes with a single etch mask. The cone‐shaped tip height and tapered tip‐end angle were experimentally varied with respect to the first DRIE depth. As the first DRIE depth was decreased, the micro‐probe tip height increased and the sharpness consequently improved. The conductive layer was exposed only at the tip ends of the micro‐probe to form a conical ultra‐micro electrode, and it was characterised via cyclic voltammetry measurements.
A solution with free boundary for non-Newtonian fluids with Drucker–Prager plasticity criterion
Authors: Ntovoris E. , Regis M.
Published: June 2018

We study a free boundary problem which is motivated by a particular case of the flow of a non-Newtonian fluid, with a pressure depending yield stress given by a Drucker–Prager plasticity criterion. We focus on the steady case and reformulate the equation as a variational problem. The resulting energy has a term with linear growth while we study the problem in an unbounded domain. We derive an Euler–Lagrange equation and prove a comparison principle. We are then able to construct a subsolution and a supersolution which quantify the natural and expected properties of the solution; in particular, we show that the solution has in fact compact support, the boundary of which is the free boundary.

The model describes the flow of a non-Newtonian material on an inclined plane with walls, driven by gravity. We show that there is a critical angle for a non-zero solution to exist. Finally, using the sub/supersolutions we give estimates of the free boundary.
A Measurement of Non-Coaxial RF Devices with Improved TRL Calibration Algorithm
Authors: Shouhong Chen , Zhuang Wang , Jun Ma , Xingna Hou
Published: June 2018

In order to test the S-parameters of non-coaxial RF (Radio Frequency) devices accurately, using, ADS (Advanced Design System) to simulate and design a set of fixture and calibration pieces for noncoaxial, RF device performance test, and the calibration pieces is used to calibrate the test fixture, remove, the error introduced by the fixture, and obtain the real S parameters of non-coaxial RF microwave devices.,Based on the study of various parameters of RF microwave devices, the Engen's TRL (Thru-Reflect-Line), calibration algorithm is studied in depth. An improved TRL calibration algorithm is proposed. And the use, of MATLAB program to achieve two calibration algorithms to correct the system error introduced by the measuring fixture, so as to get the real performance parameters of the device under test. Through the test of, the verification device, the agreement between the improved TRL algorithm and Engen's TRL algorithm is verified. The final design of the test fixture can be successfully applied to the network analyzer for noncoaxial, RF devices S-parameter measurement.
Design of data collection box based on NRF24L01
Authors: Xingna Hou , Jun Ma , Shouhong Chen , Daiyu Tao
Published: June 2018

For the increasingly demanding of real-time temperature monitoring in industrial and, agricultural production, a data collection box based on wireless communication module NRF24L01 is, designed, temperature is collected by a high-precision temperature sensor AD590.Design method of hardware and software of the system is described in detail, the configuration method of NRF24L01 is given., The application of this design in wireless temperature collection system is discussed.The experimental result shows that the design has realized two real-time monitoring on temperature of two points, it can display the, value in different environment, a sounder is equipped in the design to alarm for over-temperature.
Bank Customers' Action Analysis Based on Conductive Transformation
Authors: Li Lin , Qin Qiongzi , Wang Xiaobo , Gao Hong
Published: June 2018

With the development of economic globalization, the bank market has become increasingly competitive. The bank must take measure to attract more customers, change market status and maximize the profit. Take some bank as an example, the active transformations are increasing deposit rate and decreasing loan rate. In this paper, conductive transformation is used to analyze bank customers' action changes induced by active transformations. With conductive degree, the influence of bank behavior on customer behavior can be seen. With independent degree, we can see which behavior changes can affect bank profit, and how active transformations influent bank market status.
A Novel Algorithm for Online Spike Detection
Authors: Liu Zuozhi , Sun Zuoming , Shi Guangming , Wu Jinjian , Xie Xuemei
Published: June 2018

Recordings of extracellular spikes have been widely used in various fields ranging from basic neuroscientific research to clinical applications. However, in the extracellular recording system, how to accurately detect spikes from the recorded signal in real time is still a major challenging work. Although the existing algorithms for online spike detection have made great progress, there still remains much room for improvement in terms of accuracy. In this paper, we propose a new method for high accuracy and real time spike detection. Concretely, differential operator is firstly employed to accentuate spikes in the signal for its simplicity and strong capacity to detect significant changes. Then, by exploiting the structural features of spikes, the resolution parameter is introduced to improve the performance of differential operator. Finally, a simple and effective measure is utilized to further reduce the influence of background noise, which makes spike detection more accurate. The results of simulated and real data show that the proposed method is able to precisely detect spikes while maintaining low computational complexity.
Analysis of a Dry-type Reactor Fault Based on COMSOL Thermal Field Simulation and High Frequency Pulse Oscillations
Authors: Xin LUO , Shuai-yi WANG , Yao WANG , Yu GU
Published: June 2018

For a single-phase earth fault of 35 kV dry-type reactor, the 5th package area is found with serious turn-to-turn short circuit after it conducts the DC resistance test, turn-to-turn insulation test of high frequency oscillation pulse and rework disassembly. The turn-to-turn short circuit of resistance will lead to wire fusing, which makes the conventional pre-test projects have limitations. With COMSOL finite element thermal field simulation of the fault 35kV dry-type reactor, the temperature distribution result of the reactor indicates that the hottest point is at the 6th package during the reactor operation and the temperature rises 73.75K. In addition, the temperature rises of the 5th, 7th, 14th, 15th package is also higher than other packages, which easily causes device failure due to insulation deterioration. Through the analysis and thermal field simulation of the test for failed reactor, it can provide the reference basis for equipment design, manufacture, daily repair and maintenance.
Design of Three Phase Load Unbalance Automatic Regulating System for Low Voltage Power Distribution Grids
Authors: Li Yongxia , Gong Yulei
Published: June 2018

In the three-phase four wire system of the low voltage side for the distribution grid, the phenomenon of asymmetrical and uneven single phase load were very common, causing unbalance in certain network. When unbalance exists, the system will have a larger line loss and the unbalanced loads can result in efficiency reduction of power energy and voltage quality decline. And then the safety and stabilization of power system in the low-voltage distribution grid will be directly affected. Therefore, based on the problems above, combined with the characteristic of the low voltage distribution grid in the three-phase four wire system, a three phase load unbalance automatic regulating system for low voltage distribution grid is designed. The system is composed of intelligent phase change controller and phase commutation switch. Based on the relevant theoretical analysis and experimental research applied in the system, the results show that this system can reasonably reduce load imbalance, improve power system performance, economic and social benefits.
Credibility Evaluation of Operational Test Simulation Data under Small Sample Circumstance
Authors: Zhanfei Zhu , Xinwen Han , Wensheng Li , Shutao Yang , Bingchuan Wang
Published: June 2018

It is highly necessary to study how to analyze the reliability of simulation data under small sample circumstance when the number of times live operational test is strictly limited. Based on the analysis of existing test ideas and methods, combined with the characteristics of sequence statistics of uniform distribution, a new method of consistency verification is proposed by constructing the variable-scale differential quotient sequence statistic. The research shows that this method is not limited by the sample size, and the credibility of the simulation data can be quickly judged by MATLAB programming.
A Survey of Learning Approaches and Application for 3D Vision
Authors: Lu Luanhao
Published: June 2018

Three-dimensional (3D) vision extracted from the stereo images or reconstructed from the two-dimensional (2D) images is the most effective topic in computer vision and video surveillance. Three-dimensional scene is constructed through two stereo images which existing disparity map by Stereo vision. Many methods of Stereo matching which contains median filtering, mean-shift segmentation, guided filter and joint trilateral filters [1] are used in many algorithms to construct the precise disparity map. These methods committed to figure out the image synthesis range in different Stereo matching fields and among these techniques cannot perform perfectly every turn. The paper focuses on 3D vision, introduce the background and process of 3D vision, reviews several classical datasets in the field of 3D vision, based on which the learning approaches and several types of applications of 3D vision were evaluated and analyzed.
Application of HS-LMBP Hybrid Neural Network Algorithm in Image Denoising
Authors: jun Wang Hai , Neimule Menke , Tao Jin
Published: June 2018

In order to overcome the problems such as poor global search ability, slow convergence rate, and easy to fall into local minimum values in the image denoising process of traditional BP neural networks, the HS-LMBP hybrid neural network image denoising algorithm is proposed which combines the harmony search algorithm and the LMBP algorithm. The HS-LMBP hybrid neural network algorithm combines the high speed of the LMBP algorithm and the global nature of the HS algorithm, which can be a good improvement to the existing problems of the BP algorithm model. Compared with the Wiener filtering, BP, LMBP and PSO-LMBP model image denoising effects, the denoising model using HS-LMBP neural network algorithm has a better denoising effect.
Research of Personalized Course Recommended Algorithm based on the Hybrid Recommendation
Authors: Yang Qing , Yuan Peiling , Zhu Xi
Published: June 2018

This paper presents a personalized course recommended algorithm based on the hybrid recommendation. The recommendation algorithm uses the improved NewApriori algorithm to implements the association rule recommendation, and the user-based collaborative filtering algorithm is the main part of the algorithm. The hybrid algorithm adds the weight to the recommendation result of the user-based collaborative filtering and association rule recommendation, implementing a hybrid recommendation algorithm based on both of them. It has solved the problem of data sparsity and cold-start partially and provides a academic reference for the design of high performance elective system. The experiment uses the student scores data of a college as the test set and analyzes results and recommended quality of personalized elective course. According to the results of the experimental results, the quality of the improved hybrid recommendation algorithm is better.
Six New neo-Clerodane Diterpenoids from Aerial Parts of Scutellaria barbata and Their Cytotoxic Activities
Authors: Yang Guo-Chun , Hu Jia-Hui , Li Bing-Long , Liu Huan , Wang Jia-Yue , Sun Li-Xin
Published: June 2018

Six new neo-clerodane diterpenoids (1–6), scutebatas X – Z, A1-C1, along with twelve known ones (7–18) were obtained via the phytochemical investigation of the aerial parts of Scutellaria barbata. Their structures were established by detailed spectroscopic analysis. The absolute configurations of 1 and 2, as the representative members of this type, were identified based on a circular dichroic exciton chirality method. Moreover, in vitro cytotoxicity of compounds 1–6 were evaluated against three human cancer cell lines (SGC-7901, MCF-7, and A-549) using the MTT method. Compound 6 showed cytotoxic activities against all the three cell lines with IC50 values of 17.9, 29.9, and 35.7 µM, respectively.
An Efficient Synthesis of New 2-Aryl-5-phenylazenyl-1,3,4-oxadiazole Derivatives from N,N'-Diarylcarbonohydrazides
Authors: Kudelko Agnieszka , Kędzia Anna , Jasiak Karolina
Published: June 2018

A series of new 1,3,4-oxadiazoles conjugated to aromatic substituents by an azo linker was synthesized in a four-step reaction sequence, involving cyclodehydration of a N,N'-diacylhydrazine fragment and dehydrogenation of the neighboring hydrazine fragment of the intermediate N,N'-diarylcarbonohydrazide.
Direct Parastomal Percutaneous Embolization for Bleeding Stomal Varices
Authors: Singh Manu , Braverman Stuart , Hartzman Steve , Lee Arthur
Published: June 2018

A 71-year-old woman with a history of colon cancer and nonalcoholic fatty liver disease presented with lower gastrointestinal (GI) bleeding. Workup revealed cirrhosis with peristomal varices, which was managed successfully with computed tomography (CT)–guided percutaneous parastomal access and subsequent embolization.
Digital Arteriovenous Fistula Formation Associated with Bone Fracture Induced Blunt Trauma
Authors: Miyake Keisuke , Kikuchi Shinsuke , Koya Atsuhiro , Sawa Yoshiki , Azuma Nobuyoshi
Published: June 2018

An arteriovenous fistula formation caused by a blunt trauma is a quite rare complication, especially in the hand. We report an extremely rare case of a traumatic arteriovenous formation in a finger that developed 5 years after the patient received a blunt trauma in conjunction with a phalangeal bone fracture. Successful management was achieved by direct surgical resection of the arteriovenous fistula without any complication.
Do Cemented Dual-Mobility Cups Confer Stability for Patients at High Risk of Dislocation in Revision Total Hip Arthroplasty?
Authors: Evangelista Perry , Okroj Kamil , Plummer Darren , Della Valle Craig , Schwarzkopf Ran
Published: June 2018

Dislocation is among the most commonly reported complications following revision total hip arthroplasty. Dual-mobility bearings may lower the risk of dislocation. The authors report the results of a multicenter study evaluating the use of a dual-mobility acetabular cup design that was cemented into a metal shell as part of complex acetabular reconstructions or in cases where the risk of dislocation was felt to be high, such as isolated bearing exchanges. Eighteen patients were identified for being at high risk of dislocation who underwent cementation of a dual-mobility shell that is specifically made for cementation, into a fully porous metal revision acetabular cup (10 patients) or into a well-fixed cup at the time of revision without removal of the existing acetabular component (eight patients). Patients were assessed clinically and radiographically at a minimum of 2 years for the evidence of dislocation, revision surgery, and implant loosening. At a mean of 36 months (range, 25–56 months), one patient died and one was lost to follow-up. There were no known cases of hip dislocation. There was one repeat revision, for a deep infection treated with irrigation and debridement. The mean preoperative Harris Hip Score of 46 (range, 40–79) improved to a mean of 65 points (range, 41–97) at the most recent evaluation. Acetabular components were retained in 8 out of 18 cases and the dual-mobility shell was cemented into it. Cementation of a dual-mobility cup into a shell at the time of a revision surgery is a safe and reliable construct at minimum of 2 years for patients at high risk of dislocation. There were no complications related to the cementation of the cup into the metal shell. Longer follow-up is required to further assess the durability of this construct.
The liquid politics of an urban age
Authors: Diep Loan
Published: June 2018

In fragile social and economic societies, water governance systems have rarely managed to meet everyone’s needs, but rather misrecognised the demand of those excluded from decision-making structures. Across regions, underlying socio-political issues have often remained unaddressed on the basis that water scarcity is primarily caused by geo-climatic conditions. Exclusionary governance is one central driver to migratory patterns along with instabilities in political regimes. It is reflected in poor service provision and tends to perpetuate injustices. Several commitments of the New Urban Agenda (NUA) set objectives of universal and equitable water provision through multi-stakeholder involvement in urban planning processes. It thereby demonstrates efforts deployed towards ‘good governance’ for transparent, accountable and participatory decision-making. However, several studies have pointed out the questionable role of citizens in NUA. Building on their argument, the present article reflects on exclusionary patterns that the NUA aims to tackle and the mechanisms it proposes to achieve this. This article aims to highlight how power relations in water governance produce and reproduce exclusion in access, such as through population movements. It questions how NUA envisions water governance structures based on collaboration between multiple stakeholders in different contexts, and highlights the need to scrutinise the people-centric language adopted in its commitments. With references to water politics from Latin America and the Middle East and North Africa (MENA) region, it adopts a political ecology approach looking at questions of inclusivity for marginalised groups and discusses approaches for the active involvement of these people in water governance models.
The Franciscan Usus Pauper: using poverty to put life in the perspective of plenitude
Authors: Speelman Willem Marie
Published: June 2018

In general, poverty is approached as a pernicious problem. But poverty has always been a spiritual way of life too. For people like Francis of Assisi poverty was not only a problem, but also a mystery of a life in the perspective of perfection. Listening to his story may enrich social, political, and economic approaches to poverty, for it reveals some tactics for turning an obvious curse into a blessing. Focusing on the poor life of Francis and the Franciscans in the thirteenth century, and its early monetary economy, this article tries to come to know, alleviate, and value poverty. Sometimes a phenomenological description is needed to gain a deeper understanding of structures of monetary deprivation, of sharing gifts and needs, and of encountering a mystery. When Francis left the world, he learned that poverty is a fall depriving him of his fundamental relations. But he chose not to approach his poverty as a problem that must be solved, because this would mean that he had to turn himself into a ‘priceable object’ and ‘sell himself’. On the contrary, Francis chose to wait and listen to the voice of God and of the people that he met on the road: poor, merchants, pilgrims, and lepers. He learned that poverty is also a call expressing a longing for presence. Filling the emptiness of this longing with food and things may not be a sufficient response to the calling. Francis’s response to the calling transformed the fall into a descent to his own self and to others, and the problem into a mystery. A mystery is not a problem to be solved, but a question calling for an encounter. A first effect of the way Francis lived his poverty was that young men came to join him. They learned that approaching people without having any possessions was a very effective way to truly meet them: poverty revealed in encounters. To live without property became the mission of the brotherhood: an economy of trust, in which the act of sharing gifts, as well as needs was the motor. This mission eventually became a pastoral mission among the people in the cities, especially merchants. Living without property became very easy, because the cities would provide the brothers with everything they needed, and more. To save the original spirit of vivere sine proprio, the Franciscans developed the usus pauper (restricted use), which was a way of living a life in conformity with the poor in their new social and economic environment. In our times, people are learning to re-value practices of ‘de-ownership’. The Franciscan practice of usus pauper may help them understand why and how especially someone who lives a life according to the standards of the poor can be there for poor people, and alleviate the poverty that they share: he or she knows his or her real needs, values matters and people realistically, understands the importance of sharing, and is capable of seeing all people and all matters in the perspective of abundance.
Regional elections in Russia: instruments of authoritarian legitimacy or instability?
Authors: Ross Cameron
Published: June 2018

This study examines three rounds of regional assembly and gubernatorial elections in Russia that took place in September 2015, 2016 and 2017. In particular, it examines the ways in which the regime has manipulated the elections to guarantee the victory of United Russia. The study shows that the Kremlin has adopted a new electoral strategy. Rather than engaging in the risky business of outright fraud during the vote count, which was an important factor in sparking mass protests against the regime, in the wake of the 2011 elections to the State Duma, the authorities have decided to concentrate their efforts on preventing opposition parties and candidates from registering for the elections. Whilst other forms of electoral malpractice have continued to be practiced, such as coercing or bribing voters to turn out and vote for United Russia, promoting “carousel voting” (multiple voting by groups of mobilised citizens), or ballot stuffing, much more focus has been paid in these elections on manipulating the registration process in favour of United Russia. As is clearly demonstrated, scores of opposition candidates and party lists, have been prevented from competing because of problems with their registration documents. However, whilst this strategy has helped United Russia win large majorities in all of the gubernatorial and assembly elections, it has also created lacklustre and predictable contests, and this in turn has led to a sharp decline in turnout, particularly in the gubernatorial elections. There is a real danger that these low levels of turnout may gradually erode the legitimacy of United Russia, embolden the opposition, and threaten the stability of the regime.
Optical free-carrier generation in silicon nano-waveguides at 1550 nm
Authors: Gil-Molina Andres , Aldaya Ivan , Pita Julián L. , Gabrielli Lucas H. , Fragnito Hugo L. , Dainese Paulo
Published: June 2018

We report on time-resolved pump and probe characterization of linear and nonlinear optical generation of free carriers in a silicon strip nano-waveguide at the 1550 nm communication band. Analytical expressions were developed to extract the carrier density averaged along the waveguide length from the measured free-carrier absorption for different input pump power levels. This allows us to discriminate the contributions from two-photon absorption (TPA) and single-photon absorption (SPA), obtaining TPA and SPA coefficients of (1.5 ± 0.1) cm/GW and (1.9 ± 0.1) m−1, respectively. Our results reveal that the effective TPA within the waveguide is higher than the value reported for bulk silicon. In addition, we find that for the waveguide under test, the carrier generation via SPA plays an important role up to ∼300 mW, and therefore, it must be taken into account to correctly assess free-carrier effects in silicon photonic devices.
Shear wave velocity dispersion analysis in placenta using 2-D transient elastography
Authors: Callé Samuel , Simon Emmanuel , Dumoux Marie-Coline , Perrotin Franck , Remenieras Jean-Pierre
Published: June 2018

Preeclampsia and intrauterine growth restriction are related to placental insufficiency and constitute a major public health challenge. Significant changes in placental microarchitecture have already been described in these situations, including, for example, increases or decreases in the number of villi ramifications and the presence of fibrin deposits in terms of villi. These changes affect the entire placenta and might lead to variations in elasticity compared to normal placentas. In this context, we proposed to develop a 2-D transient elastography system, dedicated to the placenta and adapted for in vivo measurements, based on the coupling of a shear wave generated by an external vibration and ultrasound images acquired at an ultrafast rate. To be particularly sensitive to the structure of this organ, a frequency analysis of the complex shear modulus has been realized by applying a fractional rheological model. This model provides a parameter n which could be sensitive to a shape factor, for example, the variations in the number of villi ramifications in the case of placental insufficiency. An ex vivo feasibility of the method on 20 normal placentas is presented in this work.