bluuebunny/crossref_metadata_2025 huggingface dataset:
Heterostructures of polyaniline@SnO2 loading on flexible PET thin films for triethylamine detection at room temperature
Authors: Bai Shouli , Tian Yanli , Sun Jianhua , Tong Zhangfa , Luo Ruixian , Li Dianqing , Chen Aifan
Published: March 2016

A smart triethylamine sensor based on a PANI–SnO2 hybrid with p–n heterojunction loading on PET film was fabricated by in situ polymerization, which not only exhibits excellent sensing properties at room temperature but also has flexible and portable characters.
Impact of extreme downsizing of *BEA-type zeolite crystals on n-hexadecane hydroisomerization
Authors: Astafan Amir , Pouilloux Yannick , Patarin Joël , Bats Nicolas , Bouchy Christophe , Jean Daou T. , Pinard Ludovic
Published: March 2016

The extreme diminution of the crystallite size increases accessibility of Brønsted acid sites but decreases their strength.
A versatile approach to prepare ultralong nanofibers by coassembly of block copolymers and nanoparticles in emulsions
Authors: Nie Xiaobo , Zhang Ying , Wang Meng , Jiang Wei
Published: March 2016

Precise distribution of semiconductor nanoparticles within the block copolymer nanofibers was achieved by emulsion assembly.
Elucidation of hydrogen bonding formation by a computational, FT-IR spectroscopic and theoretical study between benzyl alcohol and isomeric cresols
Authors: Raveendra M. , Chandrasekhar M. , Narasimharao C. , Venkatramanna L. , Kumar K. Siva , Reddy K. Dayananda
Published: March 2016

The effect of hydrogen bonding on excess volumes: the graphical representation of excess volume and reduced density gradient scattered plot of benzylalcohol with o-cresol.
Synthesis and characterization of liquid-crystalline ionomers with pendant cholesteryl pyridinium salt mesogens
Authors: Zhao Dongyu , Zhang Lei , Bai Lu , Luo Jingqi , He Xiaozhi , Meng Fan-bao
Published: March 2016

Novel pyridinium-based liquid-crystalline ionomers were synthesized, which showed various mesophases due to the ion aggregations of ionic mesogens.
Autophagy and autophagy dysfunction contribute to apoptosis in HepG2 cells exposed to nanosilica
Authors: Yu Yongbo , Duan Junchao , Yu Yang , Li Yang , Zou Yang , Yang Yumei , Jiang Lizhen , Li Qiuling , Sun Zhiwei
Published: March 2016

The present study investigated both autophagy and apoptosis in ICR mice and Human hepatocellular carcinoma cells (HepG2), and then explored the interactive mechanism between these two distinct cell death modalities in HepG2 cells.
Highly selective Markovnikov hydroboration of alkyl-substituted terminal alkenes with a phosphine–copper(i) catalyst
Authors: Iwamoto Hiroaki , Kubota Koji , Ito Hajime
Published: March 2016

A new method has been developed for the Markovnikov hydroboration of alkyl-substituted terminal alkenes. The use of bulky bisphosphine–copper(i) catalyst system resulted in high regioselectivity to afford the corresponding secondary alkylboronates (branch/linear = 92 : 8–97 : 3).
HEPES is not suitable for fluorescence detection of HClO: a novel probe for HClO in absolute PBS
Authors: Xing Panfei , Gao Kuo , Wang Beng , Gao Jian , Yan Hui , Wen Jia , Li Weisi , Xu Yongqian , Li Hongjuan , Chen Jianxin , Wang Wei , Sun Shiguo
Published: March 2016

HEPES is not suitable for fluorescence detection of HClO. A novel probe for HClO was developed in absolute PBS.
Ultrafine potassium titanate nanowires: a new Ti-based anode for sodium ion batteries
Authors: Zhang Qing , Guo Yanpeng , Guo Kai , Zhai Tianyou , Li Huiqiao
Published: March 2016

The ultrafine K2Ti6O13nanowires growing perpendicularly to the Na+diffusion direction greatly shorten the Na+diffusion length, and thus can show high reactivity for sodium storage.
On the crystal structure of colloidally prepared CsPbBr3 quantum dots
Authors: Cottingham Patrick , Brutchey Richard L.
Published: March 2016

Colloidally synthesized quantum dots of CsPbBr3 are orthorhombic in crystal structure not cubic.
Molybdenum carbide as an efficient catalyst for low-temperature hydrogenation of dimethyl oxalate
Authors: Liu Yanting , Ding Jian , Sun Jiaqiang , Zhang Juan , Bi Jicheng , Liu Kefeng , Kong Fanhua , Xiao Haicheng , Sun Yanping , Chen Jiangang
Published: March 2016

Silica-supported molybdenum carbide (Mo2C/SiO2) is found to be a highly active, selective and stable catalyst for the hydrogenation of dimethyl oxalate to ethanol at low temperatures (473 K).
Peptide based hydrogels for cancer drug release: modulation of stiffness, drug release and proteolytic stability of hydrogels by incorporating d-amino acid residue(s)
Authors: Basu Kingshuk , Baral Abhishek , Basak Shibaji , Dehsorkhi Ashkan , Nanda Jayanta , Bhunia Debmalya , Ghosh Surajit , Castelletto Valeria , Hamley Ian W. , Banerjee Arindam
Published: March 2016

This is a novel example of tailor-made design of hydrogels for anticancer drug release.
A ‘bottom up’, ab initio computational approach to understanding fundamental photophysical processes in nitrogen containing heterocycles, DNA bases and base pairs
Authors: Marchetti Barbara , Karsili Tolga N. V. , Ashfold Michael N. R. , Domcke Wolfgang
Published: March 2016

A systematic computational study of non-radiative decay pathways following UV excitation of selected heterocycles, DNA bases, nucleosides and base-pairs in the gas phase.
On the nature of bonding in binary Be2O2and Si2O2clusters: rhombic four-center four-electron π and σ bonds
Authors: Wang Kang , Wang Ying-Jin , Li Da-Zhi , Ou Ting , Zhao Xiao-Yun , Zhai Hua-Jin
Published: March 2016

Multifold (π and σ) four-center four-electron o-bonds are uncovered in rhombic Be2O2and Si2O2binary clusters, which are considered to be aromatic.
Photocatalytic chemistry of methanol on rutile TiO2(011)-(2 × 1)
Authors: Wang Zhiqiang , Hao Qunqing , Mao Xinchun , Zhou Chuanyao , Dai Dongxu , Yang Xueming
Published: March 2016

Methanol is converted into formaldehyde, methyl formate and ethylene on a rutile (011)-(2 × 1) surface under irradiation of 266 nm light.
Synergy of metal and nonmetal dopants for visible-light photocatalysis: a case-study of Sn and N co-doped TiO2
Authors: Zhuang Huaqiang , Zhang Yingguang , Chu Zhenwei , Long Jinlin , An Xiaohan , Zhang Hongwen , Lin Huaxiang , Zhang Zizhong , Wang Xuxu
Published: March 2016

The co-incorporation of Sn and N dopants results in an obvious synergistic effect in the Sn and N co-doped TiO2 sample, which can remarkably enhance the photocatalytic performances of TiO2 sample.
Adsorption of a single gold or silver atom on vanadium oxide clusters
Authors: Ding Xun-Lei , Wang Dan , Li Rui-Jie , Liao Heng-Lu , Zhang Yan , Zhang Hua-Yong
Published: March 2016

The single Au atom can be adsorbed on both V and O sites of vanadium oxide clusters with quite large binding energies, illustrating the stabilization of noble atoms in single-atom catalysts.
Moisture effects on the electrochemical reaction and resistance switching at Ag/molybdenum oxide interfaces
Authors: Yang Chuan-Sen , Shang Da-Shan , Chai Yi-Sheng , Yan Li-Qin , Shen Bao-Gen , Sun Young
Published: March 2016

The crucial role of ambient moisture in the electrochemical processes and switching mode transition from electrochemical metallization memory (ECM) to valence change memory (VCM) is clarified based on the Pourbaix diagram for the Ag–H2O system and the Mo5+/Mo6+valence change.
Direct measurement of the tryptophan-mediated photocleavage kinetics of a protein disulfide bond
Authors: Abaskharon Rachel M. , Gai Feng
Published: March 2016

A method was devised to directly assess the kinetics and mechanism of tryptophan-mediated disulfide reduction in a protein environment.
A Cd(ii)-based metal–organic framework as a luminance sensor to nitrobenzene and Tb(iii) ion
Authors: Qu Xiang-Long , Gui Di , Zheng Xiao-Li , Li Rui , Han Hong-Liang , Li Xia , Li Pei-Zhou
Published: March 2016

A highly stable Cd(ii)-based metal–organic framework was successfully obtained. It shows a highly selective sensing effect not only towards organic pollution molecule, nitrobenzene, via a strong quenching effect, but also to an inorganic Tb(iii) ion by a strong green emission effect.
Selective aldol condensation of biomass-derived levulinic acid and furfural in aqueous-phase over MgO and ZnO
Authors: Liang Guanfeng , Wang Aiqin , Zhao Xiaochen , Lei Nian , Zhang Tao
Published: March 2016

MgO affords a high selectivity towards δ-furfurylidenelevulinic acid, while ZnO gives β-furfurylidenelevulinic acid as the major product in the aldol condensation of biomass-derived levulinic acid and furfural in the aqueous-phase.
Direct 3D-printing of cell-laden constructs in microfluidic architectures
Authors: Liu Justin , Hwang Henry H. , Wang Pengrui , Whang Grace , Chen Shaochen
Published: March 2016

We demonstrate an optical 3D-printing method to build a microfluidic micromixer with the ability to directly print cell-laden scaffolds within.
CoFe2O4-decorated carbon nanotubes for the dehydration of glucose and fructose
Authors: Ranganath Kalluri V. S. , Sahu Mahendra , Shaikh Melad , Gavel Pramod Kumar , Atyam Kiran Kumar , Khilari Santimoy , Das Pradip
Published: March 2016

Carbon nanotubes were decorated with various ferrites of normal and inverse spinels and were characterized using XRD, Raman, SEM and TEM analysis. The inverse-spinel-decorated CNTs were successfully evaluated in the dehydration of glucose and fructose.
Conformation-induced regioselective and divergent opening of epoxides by fluoride: facile access to hydroxylated fluoro-piperidines
Authors: Yan Nan , Fang Zheng , Liu Qing-Quan , Guo Xiao-Hong , Hu Xiang-Guo
Published: March 2016

Utilizing molecular conformation as a controlling factor, epoxide-containing 2-aryl-piperidines can be ring-opened with the reagent combination of TBAF/KHF2in a regioselective and divergent fashion.
Efficient functionalisation of dextran-aldehyde with catechin: potential applications in the treatment of cancer
Authors: Oliver Susan , Thomas Donald S. , Kavallaris Maria , Vittorio Orazio , Boyer Cyrille
Published: March 2016

Dextran aldehyde was functionalised with up to 38 wt% catechin and the resulting conjugate demonstrated cytotoxic efficacy against neuroblastoma cells.
Towards mussel-like on-demand coatings: light-triggered polymerization of dopamine through a photoinduced pH jump
Authors: Perrot David , Croutxé-Barghorn Céline , Allonas Xavier
Published: March 2016

Polydopamine polymerization was achieved through a photoinduced pH jump involving the irradiation of a photobase generator.
pH-Triggered copolymer micelles as drug nanocarriers for intracellular delivery
Authors: Hao Weiju , Liu Danyang , Shang Yazhuo , Zhang Junqi , Xu Shouhong , Liu Honglai
Published: March 2016

We prepared pH-sensitive polymeric micelles which were used as nano-carriers and exhibited a high loading capacity and pH-triggered release of DOX.
Structure–activity relationship and binding mode studies for a series of diketo-acids as HIV integrase inhibitors by 3D-QSAR, molecular docking and molecular dynamics simulations
Authors: Han Dan , Su Min , Tan Jianjun , Li Chunhua , Zhang Xiaoyi , Wang Cunxin
Published: March 2016

We explored the main factors affecting the activity of compounds by different statistical and computational methods.
Non-mulberry silk fibroin grafted poly(ε-caprolactone) nanofibrous scaffolds mineralized by electrodeposition: an optimal delivery system for growth factors to enhance bone regeneration
Authors: Bhattacharjee Promita , Naskar Deboki , Maiti Tapas K. , Bhattacharya Debasis , Kundu Subhas C.
Published: March 2016

Nanofibrous PCL matrix with non-mulberry silk fibroin grafting and electrodeposited nHAp was used successfully as dual growth factor delivery medium forin vitroosteogenesis.
Hybrid LiV3O8/carbon encapsulated Li1.2Mn0.54Co0.13Ni0.13O2 with improved electrochemical properties for lithium ion batteries
Authors: Sun Kailing , Peng Can , Li Zhaohui , Xiao Qichang , Lei Gangtie , Xiao Qizhen , Ding Yanhuai , Hu Zhongliang
Published: March 2016

Core–shell Li1.2Mn0.54Co0.13Ni0.13O2@LiV3O8/C composite material was prepared by sol–gel method. It possessed an initial coulombic efficiency of 94% at 0.1C rate over 2.0–4.8 V potential range, and good rate capability and stable operation voltage.
Microfluidic-based biomimetic models for life science research
Authors: Jiang Keqiu , Dong Chengyong , Xu Yakun , Wang Liming
Published: March 2016

The advances in microfluidic technology have recently generated various microfluidic-based biomimetic models as novel 3D models for life science research, offering some great advantages over conventional models.
Correction: Phytoprostanes in almonds: identification, quantification, and impact of cultivar and type of cultivation
Authors: Carrasco-Del Amor A. M. , Collado-González J. , Aguayo E. , Guy A. , Galano J. M. , Durand T. , Gil-Izquierdo A.
Published: March 2016

Correction for ‘Phytoprostanes in almonds: identification, quantification, and impact of cultivar and type of cultivation’ by A. M. Carrasco-Del Amor et al., RSC Adv., 2015, 5, 51233–51241.
Nickel-catalyzed enantioselective arylation of pyridine
Authors: Lutz J. Patrick , Chau Stephen T. , Doyle Abigail G.
Published: March 2016

A Ni-catalyzed cross coupling of arylzinc reagents with pyridinium ions provides enantioenriched dihydropyridines, which are precursors to diverse piperidine derivatives.
Stabilization of polysulfides via lithium bonds for Li–S batteries
Authors: Liao Kaiming , Mao Peng , Li Na , Han Min , Yi Jin , He Ping , Sun Yang , Zhou Haoshen
Published: March 2016

A strategy of in situ g-C3N4 coating was proposed to trap polysulfides in Li–S batteries, which enables a significant improvement in both active material utilization and capacity retention.
Ferroelectric oxide surface chemistry: water splitting via pyroelectricity
Authors: Kakekhani Arvin , Ismail-Beigi Sohrab
Published: March 2016

We propose a cyclic catalytic system that splits water by harnessing the pyroelectric effect in ferroelectric oxides.
Silica-assisted bottom-up synthesis of graphene-like high surface area carbon for highly efficient ultracapacitor and Li-ion hybrid capacitor applications
Authors: Mhamane Dattakumar , Aravindan Vanchiappan , Kim Myeong-Seong , Kim Hyun-Kyung , Roh Kwang Chul , Ruan Dianbo , Lee Sang Hyun , Srinivasan Madhavi , Kim Kwang-Bum
Published: March 2016

A silica-assisted method was developed to prepare graphene-like carbon displaying excellent capacitive charge storage.
Design of CO2 sorbents using functionalized fibrous nanosilica (KCC-1): insights into the effect of the silica morphology (KCC-1 vs. MCM-41)
Authors: Singh Baljeet , Polshettiwar Vivek
Published: March 2016

Hybrid materials by functionalization of fibrous nanosilica (KCC-1) were synthesized for efficient CO2 capture, using various amine molecules by physisorption (ads.) as well as covalent attachment.
Reduction-responsive fluorescence off–on BODIPY–camptothecin conjugates for self-reporting drug release
Authors: Liu Yang , Pei Qing , Chen Li , Li Zhensheng , Xie Zhigang
Published: March 2016

A reduction-responsive fluorescence off–on theranostic prodrug with self-reporting drug release was constructed based on boron dipyrromethene (BODIPY) and therapeutic drug camptothecin (CPT) with a long flexible disulfide linker.
A synergic nanoantioxidant based on covalently modified halloysite–trolox nanotubes with intra-lumen loaded quercetin
Authors: Massaro Marina , Riela Serena , Guernelli Susanna , Parisi Filippo , Lazzara Giuseppe , Baschieri Andrea , Valgimigli Luca , Amorati Riccardo
Published: March 2016

Synergic antioxidant activity was achieved by grafting α-tocopherol derivatives on halloysite nanotubes, and by loading quercetin in the inner lumen.
Multicolour fluorescent carbon nanoparticle probes for live cell imaging and dual palladium and mercury sensors
Authors: Sharma Vinay , Saini Anoop Kumar , Mobin Shaikh M.
Published: March 2016

Cytocompatible carbon nanoparticles (CNPs) having high quantum yield and multicolour bioimaging properties were synthesized and employed as sensitive, selective and rapid dual sensor for Pd2+ and Hg2+.
Mussel-inspired coatings on Ag nanoparticle-conjugated carbon nanotubes: bactericidal activity and mammal cell toxicity
Authors: Nie Chuanxiong , Cheng Chong , Peng Zihang , Ma Lang , He Chao , Xia Yi , Zhao Changsheng
Published: March 2016

Silver nanoparticle (AgNP)-based nanohybrids have been proposed as efficient antimicrobial agents because of their robust bactericidal activity.
Bioactive natural protein–hydroxyapatite nanocarriers for optimizing osteogenic differentiation of mesenchymal stem cells
Authors: Ding Z. Z. , Fan Z. H. , Huang X. W. , Bai S. M. , Song D. W. , Lu Q. , Kaplan D. L.
Published: March 2016

Core–shell HA–silk composite nanoparticles as BMP-2 carriers show superior drug loading capacity and sustained release. The improved osteo-differentiation of stem cells on the carriers suggested a promising approach to designing bioactive nanocarrier systems with enhanced functions.
Recent advances in diarylethene-based multi-responsive molecular switches
Authors: Pu Shou-Zhi , Sun Qi , Fan Cong-Bin , Wang Ren-Jie , Liu Gang
Published: March 2016

This review highlights the recent research progress on diarylethene-based multi-responsive molecular switches with special emphasis on the modulation of their photophysical properties by multiple external stimuli.
Graphene coated nonwoven fabrics as wearable sensors
Authors: Du Donghe , Li Pengcheng , Ouyang Jianyong
Published: March 2016

A low cost graphene coated nonwoven fabric wearable sensor can monitor a series of human motions including pulse and respiration.
Unusual Dirac half-metallicity with intrinsic ferromagnetism in vanadium trihalide monolayers
Authors: He Junjie , Ma Shuangying , Lyu Pengbo , Nachtigall Petr
Published: March 2016

Monolayer vanadium trihalides show stable 2D intrinsic ferromagnetism, half-metallicity and Dirac point.
Transparent polycrystalline SrREGa3O7 melilite ceramics: potential phosphors for tuneable solid state lighting
Authors: Boyer Marina , Carrion Alberto José Fernandez , Ory Sandra , Becerro Ana Isabel , Villette Sandrine , Eliseeva Svetlana V. , Petoud Stéphane , Aballea Pierre , Matzen Guy , Allix Mathieu
Published: March 2016

Transparent SrREGa3O7 polycrystalline ceramics were prepared from full and congruent glass crystallization. The SrGdGa3O7 material doped with Dy3+ or codoped with Tb3+/Eu3+ exhibits white light emission under UV excitation.
Molecular basis for the toxin insensitivity of scorpion voltage-gated potassium channel MmKv1
Authors: Zhang Chuangeng , Xie Zili , Li Xinxin , Chen Jing , Feng Jing , Lang Yange , Yang Weishan , Li Wenxin , Chen Zongyun , Yao Jing , Cao Zhijian , Wu Yingliang
Published: March 2016

Scorpions are insensitive to their own venoms, which contain various neurotoxins specific for mammalian or insect ion channels, whose molecular mechanism remains unsolved. Using MmKv1, a potassium channel identified from the genome of the scorpion Mesobuthus martensii, channel kinetic experiments showed that MmKv1 was a classical voltage-gated potassium channel with a voltage-dependent fast activation and slow inactivation. Compared with the human Kv1.3 channel (hKv1.3), the MmKv1 channel exhibited a remarkable insensitivity to both scorpion venom and toxin. The chimaeric channels of MmKv1 and hKv1.3 revealed that both turret and filter regions of the MmKv1 channel were critical for the toxin insensitivity of MmKv1. Furthermore, mutagenesis of the chimaeric channel indicated that two basic residues (Arg399 and Lys403) in the MmKv1 turret region and Arg425 in the MmKv1 filter region significantly affected its toxin insensitivity. Moreover, when these three basic residues of MmKv1 were simultaneously substituted with the corresponding residues from hKv1.3, the MmKv1-R399T/K403S/R425H mutant channels exhibited similar sensitivity to both scorpion venom and toxin to hKv1.3, which revealed the determining role of these three basic residues in the toxin insensitivity of the MmKv1 channel. More strikingly, a similar triad sequence structure is present in all Shaker-like channels from venomous invertebrates, which suggested a possible convergent functional evolution of these channels to enable them to resist their own venoms. Together, these findings first illustrate the mechanism by which scorpions are insensitive to their own venoms at the ion channel receptor level and enrich our knowledge of the insensitivity of scorpions and other venomous animals to their own venoms.
High‐performance single‐cycle memristive multifunction logic architecture
Authors: Yang X. , Adeyemo A.A. , Jabir A. , Mathew J.
Published: March 2016

A low‐complexity high‐performance memristive multifunction logic architecture is presented for low‐power high‐frequency operations in a single cycle, which does not require additional control input/logic and multicycle setup/operation. It can be seamlessly integrated with the existing CMOS technology with just one transistor and four memristors design and without additional overhead. This technique can realise both XOR/AND and XNOR/OR operations simultaneously. Experimental results show that this technique significantly outperforms both CMOS and existing hybrid memristor‐CMOS‐based designs in terms of chip area, power consumptions, and reliable performance especially at high frequencies. With the help of full‐adder designs, it is also demonstrated that the multifunctionality of this architecture can result in highly compact designs.
8/10 two‐dimensional modulation code for holographic data storage systems
Authors: Nguyen C.D. , Lee J.
Published: March 2016

Holographic data storage (HDS) provides the high storage density and fast data‐access rate because of the page‐oriented data processing, and by the same reason, the performance of retrieving original user data is mainly affected by 2D intersymbol interference (ISI). An 8/10 2D modulation code for mitigating a 2D ISI in HDS systems is proposed. The simulation results show that the proposed code provides a gain of approximately 6 dB at BER of 10−6 compared to the raw signal without encoding. Especially, in comparison to a recently suggested 6/8 modulation code, the proposed scheme not only offers a higher code rate, but it also exposes a boost of the system performance under misalignment conditions.
Natural flux minimisation technique for enhanced operation of doubly‐fed induction generator
Authors: Asha Rani M.A. , Nagamani Chilakapati , Ilango Ganesan Saravana
Published: March 2016

This paper presents a robust reference current generation technique for rotor side converter (RSC) control of a grid connected doubly‐fed induction generator (DFIG) to eliminate the natural flux revolving in air gap implemented in the positive d–q reference frame. The objective of the scheme is to enhance the performance of the generator under grid unbalance by eliminating the double frequency content in the d–q axes stator flux without using double vector control. RSC is employed to minimise the oscillations in stator flux and consequently in power and torque while grid side converter minimises the dc‐link voltage ripples and maintains zero grid reactive power. It is revealed that, minimising the stator flux pulsations as a single control target enables minimisation of unbalance in stator and grid currents and pulsations in torque, power and dc‐link voltage. Further, the simplicity in implementation and computation of reference currents and rotor flux, and robustness under parameter variations render the scheme attractive. The performance of DFIG is investigated through numerical simulations in PSCAD/EMTDC for a 250 kW DFIG system and further, through experimental results for a 2.3 kW DFIG test setup. The results show the enhanced performance of DFIG with the proposed scheme.
Mm‐waves propagation measurements in underground mine using directional MIMO antennas
Authors: Ghaddar Mohamad , Talbi Larbi , Nedil Mourad , Ben Mabrouk Ismail , Denidni Tayeb A.
Published: March 2016

This study reveals the interests towards the use of directional (D)‐multiple‐input and multiple‐output (MIMO) setup as a potential solution to overcome the severe propagation loss of inherent line of sight (LOS) mm‐waves communications in underground mine. To show the advantages of the proposed D‐MIMO, two separate measurement campaigns are assessed in a comparative way; the first uses a single‐input single‐output (SISO), while the second uses a 2 × 2 D‐MIMO system. Furthermore, due to the unavoidable blockage of direct LOS in underground mines, the miner's shadowing effects (NLOS‐MSE) are investigated. Thus, using both D‐SISO and D‐MIMO setup, the channel propagation characteristics are extracted and investigated with and without the presence of a miner completely blocking LOS. Under LOS, results show that, besides offering a reliable mm‐waves link budget, D‐MIMO restrains the average path loss (PL) by more than 4.7 dB, further suppresses the root mean square delay to 1.85 ns and offers an average capacity of 23.3 bits/s/Hz. As a miner completely blocks LOS, the proposed D‐MIMO system has shown a greater signal ability to overcome the effects of a miner's body; NLOS‐MSE compensation of about 4.3 dB and a capacity gain of 19.6 bits/s/Hz have been achieved over the conventional SISO system.
Performance improvement of FSO satellite downlink using aperture averaging and receiver spatial diversity
Authors: Gopal Pooja , Jain Virander Kumar , Kar Subrat
Published: March 2016

In this study, the bit error rate performance evaluation of a free space optical (FSO) satellite downlink has been carried out. Subsequently, improvement in performance using aperture averaging and receiver spatial diversity techniques have been explored. With a single large aperture receiver or an array of small aperture receivers, the scintillation index in the downlink can be reduced to a very small value. Moreover, a single receiver gives better performance than an array of receivers (employing equal gain combining) with the total area same as that of the single receiver. The expression of channel capacity with outage for the slow fading FSO channel has been derived using the log‐normal and gamma–gamma channel models. Based on maximum acceptable outage probability, the minimum required signal‐to‐noise ratio is determined, from which the capacity with outage is calculated. It has been observed that the maximum achievable capacity per unit bandwidth increases and the corresponding outage probability reduces with an increase in the aperture diameter for a single receiver or with the size of the array for a receiver with spatial diversity.
Spectrum allocation based on spectrum integration and re‐routing for elastic optical networks
Authors: Liu Huanlin , Zhou Bangtao , Chen Yong
Published: March 2016

For improving energy efficiency and spectrum utilisation for elastic optical networks, an energy‐efficient resources allocation algorithm based on spectrum‐aware is put forward. In the proposed algorithm, a spectrum allocation algorithm based on spectrum integration is introduced first. The algorithm reduces spectrum fragmentation by taking the spectrum slots usage of neighbour links into account, which makes the subsequent arriving requests have more chance to be successfully transmitted on the paths with minimal power consumption. Moreover, a path re‐routing mechanism, moving the requests which are not transmitted on their minimal power consumption paths to their minimal power consumption paths, is studied in the proposed algorithm. The simulation results show that the proposed algorithm not only improves energy efficiency, but also reduces the bandwidth blocking rate.
RHM übernimmt insolvente Reha-Klinik
Authors: Zehnder Adalbert
Published: March 2016

Die auf Expansionskurs befindliche Klinikgruppe RHM hat die insolvente Klinik Hohenlohe in Bad Mergentheim übernommen.
Aufklärung als Lösungsansatz
Authors: Dirks Claudia
Published: March 2016

Informationstechnologien werden für den Krankenhausbetrieb immer wichtiger. Parallel dazu sind die Studentenzahlen in der Medizininformatik rückläufig.
Markt mit atemberaubender Dynamik
Authors: Petzsch Sandra
Published: March 2016

Die Radiologie wird immer bunter. Das Fach und die begleitenden bildgebenden Technologien erweitern Wissen und Betätigungsfeld der Radiologen gleichermaßen. Wer noch vor Jahren dachte, Röntgentechnologie habe ausgedient, muss heute Abbitte leisten – kaum ein anderer Markt bringt so schnell so viele Innovationen hervor.
Natur als Genesungshilfe
Authors: Kucera Martin
Published: March 2016

Ein gut geplanter Klinikgarten beschleunigt erwiesenermaßen den Gesundungsprozess und entspannt gestresste Patienten. Dennoch ist er vielen Krankenhausbetreibern zu teuer. Dabei ist er auch als Image- und Marketingfaktor nicht zu unterschätzen.
Alarmplan und Betreiberverantwortung
Authors: Decker Arnold , Thalmayr Maria
Published: March 2016

Verbandsnachrichten der FKT - Fachvereinigung Krankenhaustechnik (e. V.). Diese Seiten sind nur als PDF-Dokument verfügbar.
Fresenius wird bescheidener
Authors: Schmidt Hartmut
Published: March 2016

Während sich auf dem Börsenparkett in den letzten Wochen nicht viel getan hat, geht das Gezerre um das Rhön-Klinikum offenbar in die finale Runde: Das Kursplus der Aktie von 16 Prozent spricht dafür, dass Fresenius bald mit einem neuen Übernahmeangebot aufwarten wird.
Die Kraft der IT
Authors: Geisendorf Nicklas
Published: March 2016

Was die technische Unterstützung von Arzneimitteltherapiesicherheit (AMTS) betrifft, stehen deutsche Kliniken im europäischen Vergleich schlecht da. Dabei mangelt es in erster Linie nicht an der Software, sondern an deren Vernetzung.
„Das Berufsrecht ist zahnlos.“
Authors: Wodarg Wolfgang
Published: March 2016

Ist das Berufsrecht ausreichend, um Fehlverhalten im Gesundheitswesen zu bekämpfen?
Klinikmanager profitieren von Besuch der Medica
Authors: Gaede Kirsten
Published: March 2016

Auf dem Krankenhaustag der Medica lässt sich der eine oder andere Krankenhauschef sehen. Aber bei den Ausstellern in den Hallen? Die meisten schicken ihre Mitarbeiter und kommen nicht persönlich. Das ist ein Fehler, meint der Krankenhausdirektor des Klinikums Itzehoe.
Fast kostenloses System für Dialysezentren
Authors: Dirks Claudia
Published: March 2016

Das Kuratorium für Dialyse und Nierentransplantation (KfH) führt zur Unterstützung seiner Ärzte ein System zur Medikationsprüfung und AVWG-konformen Rezepterstellung ein.
Mehr umgesetzt, weniger verdient
Authors: Zehnder Adalbert
Published: March 2016

Zum zweiten Mal in Folge haben die Münchner Sana Kliniken ihren Umsatz um zehn Prozent steigern können – auf 1,8 Milliarden Euro.
PEPP blockiert Innovationen
Authors: Deister Arno
Published: March 2016

Sicher: Die Psychiatrie braucht eine differenziertere Vergütung. Doch das neue Entgeltsystem PEPP zielt in die falsche Richtung: Es zementiert die Sektorengrenzen und verhindert neue flexible Versorgungsformen, kritisiert der Psychiater Arno Deister.
Schluss mit den Bagatellen in der Notaufnahme!
Authors: Stamelos Georg
Published: March 2016

In Brandenburg rücken ärztlicher Bereitschaftsdienst und Rettungsstelle räumlich näher zusammen – zum Vorteil für die Krankenhäuser und die niedergelassenen Ärzte. Ein Modell das gerade Schule macht und auf den kinderärzt­lichen Notdienst ausgeweitet werden soll.
Spitzenmedizin in der Krise
Authors: Mau Jens
Published: March 2016

Unikliniken fühlen sich bedroht. Immer mehr Häuser rutschen in die roten Zahlen, auch weil Maximalversorger durch Spezialisierung ins Geschäftsfeld der Klinikriesen eindringen. Jetzt kämpfen die Unikliniken um ihren Führungsanspruch.
„Das Patientenwohl steht immer an erster Stelle“
Authors: Sickinger Nina
Published: March 2016

Was ich sowohl in Griechenland als auch in Deutschland sehr schätze, ist die hervorragende Teamarbeit.
Die Klinikbörse trocknet aus
Authors: Schmidt Hartmut
Published: March 2016

Die Anleger sind weiterhin optimistisch. Nach einem überaus erfolgreichen Jahr 2013 erwarten sie für 2014 weiter steigende Kurse. Antriebsfeder soll dabei die Konjunktur und ein deutliches Gewinnwachstum der Unternehmen sein. Der Markt für Klinik- und Pflegeheimbetreiber droht dagegen weiter auszutrocknen.
„Den hatten wir nicht auf der Rechnung”
Authors: Zehnder Adalbert
Published: March 2016

Hermann Gröhe ist Parteisoldat, politischer Strippenzieher und war Kirchenfunktionär. Mit Gesundheit hatte er bisher so gut wie nichts am Hut. Ist das ein Problem? In der Gesundheitswirtschaft stößt seine Berufung auf ein geteiltes Echo.
Anton J. Schmidt: Netzwerker der Gesundheitswirtschaft
Authors: Gaede Kirsten
Published: March 2016

Während die Politik seit Jahren über schärfere Kontrollen für Medizinprodukte diskutiert, krempelt der Chef des Bundesverbands der Beschaffungsinstitutionen (BVBG) die Ärmel hoch: Er holt die Beteiligten aus Industrie, Medizin und Krankenhaus an einen Tisch und entwickelt mit ihnen Messinstrumente, die Produkt- und Patientensicherheit einen entscheidenden Schritt voranbringen.
Auf dem Weg zum Herzstück
Authors: Zehnder Adalbert
Published: March 2016

Nach den Skandalen um schlampig gereinigte OP-Instrumente haben viele Kliniken in ihre Sterilgut­versorgung investiert und deren Bedeutung erkannt. Doch Baustellen gibt es nach wie vor.
Neue Farbenlehre mit Chancen
Authors: Ekkernkamp Axel
Published: March 2016

Rechtzeitig vor Weihnachten sind die Würfel gefallen, sodass die Arbeit der großen Koalition im Januar so richtig Fahrt aufnehmen kann.
Chefärzte verdienen am besten
Authors: Mau Jens
Published: March 2016

Ein Ärztlicher Direktor verdient im Schnitt 133.000 Euro und damit nur knapp halb so viel wie ein Chefarzt.
Dänzer stolpert über Hygieneskandal
Authors: Doelfs Guntram , Mau Jens
Published: March 2016

Erst waren es Ermittlungen wegen Betrugsverdachts, nun wegen Hygienemängeln: DKG-Präsident Alfred Dänzer nimmt seinen Hut als Geschäftsführer des Uniklinikums Mannheim.
„PPP ist ideal für uns”
Authors: Gaede Kirsten
Published: March 2016

Viele Träger haben mit ihr geliebäugelt – kaum einer hat sie umgesetzt: die öffentlich-private Partnerschaft. Nun startet das UKSH das größte PPP-Projekt in der Geschichte der Klinikbranche. Auftragsvolumen: 1,7 Milliarden Euro. UKSH-Chef Jens Scholz erklärt im Gespräch mit kma, warum er sich für diese Finanzierungsform entschieden hat.
Roughness effect on airfoil aerodynamic performance for land-yacht robot
Authors: Chen Jiqing , Xie Shaorong , Li Hengyu , Luo Jun , Zhao Changyang
Published: March 2016

The land-yacht robot presented in this paper aims at an Antarctic expedition which is driven by wing-sail. The wing-sail is composed by airfoil and surface roughness, which is one of the main factors affecting the aerodynamic performance of the airfoil. In order to improve the efficiency of the airfoil, stress analysis of the wing-sail and airfoil mechanism is researched and the type of airfoil is determined. For roughness size, equivalent particle roughness is introduced and a boundary layer flow separation model is a simulated roughness model. Then N-S equations and the S-A turbulence model are predicted airfoil aerodynamics in CFD (Computational Fluid Dynamics). When different sizes of a roughness strip are deposed on an airfoil surface, we obtain lift and drag coefficient, sensitive angle of attack of 6°, and 0.5 mm of sensitive roughness size. When roughness is arranged at different positions, we discover two sensitive positions, 10% chord length in suction surface and near trailing edge in pressure surface. Further analysis of the two sensitive positions in 10% chord length and aerodynamic is worse with the increasing roughness size. Near the trailing edge, there is a threshold of 0.7 mm. Lower than 0.7 mm, aerodynamics is improving; in contrast, it is worse. Finally, simulation results are verified by experiments. It shows that the predicted value conforms to the experiments and this research can provide a valuable reference for the mechanism of the land-yacht robot.
Dual polarized receiving steering antenna array for measurement of ultrawideband pulse polarization structure
Authors: Balzovsky E. V. , Buyanov Yu. I. , Koshelev V. I. , Nekrasov E. S.
Published: March 2016

To measure simultaneously two orthogonal components of the electromagnetic field of nano- and subnano-second duration, an antenna array has been developed. The antenna elements of the array are the crossed dipoles of dimension 5 × 5 cm. The arms of the dipoles are connected to the active four-pole devices to compensate the frequency response variations of a short dipole in the frequency band ranging from 0.4 to 4 GHz. The dipoles have superimposed phase centers allowing measuring the polarization structure of the field in different directions. The developed antenna array is the linear one containing four elements. The pattern maximum position is controlled by means of the switched ultrawideband true time delay lines. Discrete steering in seven directions in the range from −40° to +40° has been realized. The error at setting the pattern maximum position is less than 4°. The isolation of the polarization exceeds 29 dB in the direction orthogonal to the array axis and in the whole steering range it exceeds 23 dB. Measurement results of the polarization structure of radiated and scattered pulses with different polarization are presented as well.
Linear multispecies gyrokinetic flux tube benchmarks in shaped tokamak plasmas
Authors: Merlo G. , Sauter O. , Brunner S. , Burckel A. , Camenen Y. , Casson F. J. , Dorland W. , Fable E. , Görler T. , Jenko F. , Peeters A. G. , Told D. , Villard L.
Published: March 2016

Verification is the fundamental step that any turbulence simulation code has to be submitted in order to assess the proper implementation of the underlying equations. We have carried out a cross comparison of three flux tube gyrokinetic codes, GENE [F. Jenko et al., Phys. Plasmas 7, 1904 (2000)], GKW [A. G. Peeters et al., Comput. Phys. Commun. 180, 2650 (2009)], and GS2 [W. Dorland et al., Phys. Rev. Lett. 85, 5579 (2000)], focusing our attention on the effect of realistic geometries described by a series of MHD equilibria with increasing shaping complexity. To simplify the effort, the benchmark has been limited to the electrostatic collisionless linear behaviour of the system. A fully gyrokinetic model has been used to describe the dynamics of both ions and electrons. Several tests have been carried out looking at linear stability at ion and electron scales, where for the assumed profiles Ion Temperature Gradient (ITG)/Trapped Electron Modes and Electron Temperature Gradient modes are unstable. The capability of the codes to handle a non-zero ballooning angle has been successfully benchmarked in the ITG regime. Finally, the standard Rosenbluth-Hinton test has been successfully carried out looking at the effect of shaping on Zonal Flows (ZFs) and Geodesic Acoustic Modes (GAMs). Inter-code comparison as well as validation of simulation results against analytical estimates has been accomplished. All the performed tests confirm that plasma elongation strongly stabilizes plasma instabilities as well as leads to a strong increase in ZF residual and GAM damping.
Particle-in-cell simulations of multi-MeV pulsed X-ray induced air plasmas at low pressures
Authors: Ribière M. , Cessenat O. , d'Almeida T. , de Gaufridy de Dortan F. , Maulois M. , Delbos C. , Garrigues A. , Azaïs B.
Published: March 2016

A full kinetic modelling of the charge particles dynamics generated upon the irradiation of an air-filled cavity by a multi-MeV pulsed x-ray is performed. From the calculated radiative source generated by the ASTERIX generator, we calculated the electromagnetic fields generated by x-ray induced air plasmas in a metallic cavity at different pressures. Simulations are carried out based on a Particle-In-Cell interpolation method which uses 3D Maxwell-Vlasov calculations of the constitutive charged species densities of air plasmas at different pressures at equilibrium. The resulting electromagnetic fields within the cavity are calculated for different electron densities up to 4 × 1010 cm−3. For each air pressure, we show electronic plasma waves formation followed by Landau damping. As electron density increases, the calculations exhibit space-charged neutralization and return current formation.
Optimization of classical nonpolarizable force fields for OH− and H3O+
Authors: Bonthuis Douwe Jan , Mamatkulov Shavkat I. , Netz Roland R.
Published: March 2016

We optimize force fields for H3O+ and OH− that reproduce the experimental solvation free energies and the activities of H3O+ Cl− and Na+ OH− solutions up to concentrations of 1.5 mol/l. The force fields are optimized with respect to the partial charge on the hydrogen atoms and the Lennard-Jones parameters of the oxygen atoms. Remarkably, the partial charge on the hydrogen atom of the optimized H3O+ force field is 0.8 ± 0.1|e|—significantly higher than the value typically used for nonpolarizable water models and H3O+ force fields. In contrast, the optimal partial charge on the hydrogen atom of OH− turns out to be zero. Standard combination rules can be used for H3O+ Cl− solutions, while for Na+ OH− solutions, we need to significantly increase the effective anion-cation Lennard-Jones radius. While highlighting the importance of intramolecular electrostatics, our results show that it is possible to generate thermodynamically consistent force fields without using atomic polarizability.
Giant amplification in degenerate band edge slow-wave structures interacting with an electron beam
Authors: Othman Mohamed A. K. , Veysi Mehdi , Figotin Alexander , Capolino Filippo
Published: March 2016

We propose a new amplification regime based on a synchronous operation of four degenerate electromagnetic (EM) modes in a slow-wave structure and the electron beam, referred to as super synchronization. These four EM modes arise in a Fabry-Pérot cavity when degenerate band edge (DBE) condition is satisfied. The modes interact constructively with the electron beam resulting in superior amplification. In particular, much larger gains are achieved for smaller beam currents compared to conventional structures based on synchronization with only a single EM mode. We demonstrate giant gain scaling with respect to the length of the slow-wave structure compared to conventional Pierce type single mode traveling wave tube amplifiers. We construct a coupled transmission line model for a loaded waveguide slow-wave structure exhibiting a DBE, and investigate the phenomenon of giant gain via super synchronization using the Pierce model generalized to multimode interaction.
An instrument combining an electrospray ionization source and a velocity-map imaging spectrometer for studying delayed electron emission of polyanions
Authors: Concina Bruno , Papalazarou Evangelos , Barbaire Marc , Clavier Christian , Maurelli Jacques , Lépine Franck , Bordas Christian
Published: March 2016

An instrument combining an electrospray ionization source and a velocity-map imaging (VMI) spectrometer has been developed in order to study the delayed electron emission of molecular anions and especially of polyanions. It operates at a high repetition rate (kHz) in order to increase the acquisition speed. The VMI spectrometer has been upgraded for nanosecond time resolution by gating the voltages applied on the position-sensitive detector. Kinetic energy release distribution of thermionic emission (without any contribution from direct detachment) can be recorded for well-defined delays after the nanosecond laser excitation. The capability of the instrument is demonstrated by recording photodetachment spectra of the benchmark C60− anion and C842− dianion.
Start current of dielectric-loaded grating in Smith-Purcell radiation
Authors: Liu Wenxin , Cao Miaomiao , Wang Yong , Li Ke
Published: March 2016

In this paper, a three-dimensional dielectric loaded grating (DLG) is proposed for the Smith-Purcell (SP) device. Taking into the considerations of thickness and width of electron beam, the dispersion equation is derived by using field matches method. The complex frequency is obtained by the numerical solution of dispersion equation, in which the imaginary part represents linear growth rate. The impacts of the electron beam filling factor (EBFF) on growth rate are discussed under the condition that the beam current and beam current density are kept as constants, respectively. In addition, the start current for SP oscillator is obtained by using the dispersion relation combined with boundary conditions. The relationship between the start current and other parameters is discussed and compared with the conventional metal grating. The results show that with the increasing of EBFF, the peak growth rate increases rapidly firstly and then decreases slowly, in which the current and current density are kept as constants, respectively. For the SP oscillator, the start current is increased with the shifting up beam voltage, but it is decreased with the improved EBFF, and only it has a slightly increasing trend when EBFF is close to 1. In addition, the start current is decreased with the increasing of relative dielectric constant, which indicates that by introducing DLG, the start current can be effectively reduced. Theoretical results are in good agreement with that of the simulations.
Synthesis of large scale graphene oxide using plasma enhanced chemical vapor deposition method and its application in humidity sensing
Authors: Liu Yang , Chen Yuming
Published: March 2016

Large scale graphene oxide (GO) is directly synthesized on copper (Cu) foil by plasma enhanced chemical vapor deposition method under 500 °C and even lower temperature. Compared to the modified Hummer's method, the obtained GO sheet in this article is large, and it is scalable according to the Cu foil size. The oxygen-contained groups in the GO are introduced through the residual gas of methane (99.9% purity). To prevent the Cu surface from the bombardment of the ions in the plasma, we use low intensity discharge. Our experiment reveals that growth temperature has important influence on the carbon to oxygen ratio (C/O ratio) in the GO; and it also affects the amount of π-π* bonds between carbon atoms. Preliminary experiments on a 6 mm × 12 mm GO based humidity sensor prove that the synthesized GO reacts well to the humidity change. Our GO synthesis method may provide another channel for obtaining large scale GO in gas sensing or other applications.
Deployment shock attenuation of a solar array tape hinge by means of the Martensite detwinning of NiTi Shape Memory Alloy
Authors: Lee Chang-Ho , Jeong Ju-Won , Kim Young-Jin , Lee Jung-Ju
Published: March 2016

This paper presents a new tape hinge for attenuating the deployment shock of a satellite solar array. This hinge uses the Martensite detwinning of Shape Memory Alloy (SMA). To attenuate the deployment shock, a NiTi SMA strip is assembled between two curved steel strips. The attenuation performance of the hinge is analyzed using a SMA detwinning constitutive equation. A prototype of the hinge is manufactured and its characteristics are measured in a bending test and in a deployment test. Finally, the deployment performance of the prototype hinge is investigated on a satellite model. It is shown that the new SMA damped tape hinge can effectively minimize the deployment shock and dynamic perturbation while also maintaining suitable deployment performance.