bluuebunny/crossref_metadata_2025 huggingface dataset:
Long-lived charge separated state and thermally activated delayed fluorescence in anthraquinone-phenoxazine electron donor–acceptor dyads
Authors: Zhao Xiaoyu , Zhao Jianzhang
Published: June 2022

Long-lived triplet charge separated states with a lifetime of 2.6 μs and thermally activated delayed fluorescence were observed with anthraquinone-phenoxazine dyads.
Enzyme-responsive hybrid prodrug of nitric oxide and hydrogen sulfide for heart failure therapy
Authors: Liu Qi , Ji Guangbo , Chu Yushu , Hao Tian , Qian Meng , Zhao Qiang
Published: June 2022

Codelivery of nitric oxide and hydrogen sulfide from an enzyme-responsive hybrid prodrug provides potent therapeutic efficacy for heart failure.
A fast responsive and cell membrane-targetable near-infrared H2S fluorescent probe for drug resistance bioassays in chemotherapy
Authors: He Yifan , Hu Wei , Chai Li , Wang Yanying , Wang Xian , Liang Tao , Li Haiyan , Li Chunya
Published: June 2022

A fast responsive and cell membrane-targetable near-infrared H2S fluorescent probe was fabricated. Based on this probe, the close relationship between the overexpression of NFS1 and drug resistance in chemotherapy was further verified.
A new sodium vanadyl fluorophosphate as a high-rate and stable cathode for aqueous hybrid sodium–zinc batteries
Authors: Zhao Xun , Mao Lei , Cheng Qihui , Liao Fangfang , Yang Guiyuan , Chen Lingyun
Published: June 2022

A new sodium vanadyl fluorophosphate (Na(VO)2(PO4)1.5F0.5) as a high-rate and stable cathode is prepared by a simple solvothermal method, which delivers superior aqueous energy storage performance based on the Na+/Zn2+ co-insertion mechanism.
Environmental effects on the singlet fission phenomenon: a model Hamiltonian-based study
Authors: Roseiro Pablo , Robert Vincent
Published: June 2022

The influence of a spin-dependent field on the thermodynamic condition of singlet fission.
High value utilization of biomass: selective catalytic transformation of lignocellulose into bio-based 2,5-dimethylphenol
Authors: He Yuting , Luo Yuehui , Yang Mingyu , Zhang Yanhua , Fan Minghui , Li Quanxin
Published: June 2022

A new strategy for the synthesis of high-value biochemical 2,5-dimethylphenol was constructed by lignocellulose catalytic pyrolysis and selective hydroxylation.
Cascade chiral amine synthesis catalyzed by site-specifically co-immobilized alcohol and amine dehydrogenases
Authors: Liu Si , Wang Zhenfu , Chen Kun , Yu Linling , Shi Qinghong , Dong Xiaoyan , Sun Yan
Published: June 2022

Sustainable and efficient production of chiral amines was realized with an oriented co-immobilized dual-enzyme system via SiBP-tag.
Multiple MMCT properties of the diruthenium-based cyanido-bridged complex RuVI2-NC-RuII-CN-RuVI2
Authors: Su Shao-Dong , Wen Yue-Hong , Wu Xin-Tao , Sheng Tian-Lu
Published: June 2022

The two-electron oxidation state of a diruthenium-based mixed valence complex exhibits three identified MMCT transitions including a new type of transition.
Inert cationic iridium(iii) complexes with phenanthroline-based ligands: application in antimicrobial inactivation of multidrug-resistant bacterial strains
Authors: Busto Natalia , Vigueras Gloria , Cutillas Natalia , García Begoña , Ruiz José
Published: June 2022

New iridium complexes with phenanthroline-based ligands show great potential as antimicrobials, being even more effective than the broad-spectrum antibiotic norfloxacin in Gram positive bacteria.
Boosted nitrate electroreduction to ammonia on Fe-doped SnS2 nanosheet arrays rich in S-vacancies
Authors: Chen Kai , Luo Yaojing , Shen Peng , Liu Xiaoxu , Li Xingchuan , Li Xiaotian , Chu Ke
Published: June 2022

Fe–SnS2 exhibits a high NO3RR activity, attributed to that S-vacancies act as the main active sites, while Fe-doping can further regulated the electronic structure of S-vacancies to optimize the binding energies of the NO3RR intermediates.
Generation of environmentally persistent free radicals on faceted TiO2 in an ambient environment: roles of crystalline surface structures
Authors: Lang Di , Jiang Feng , Gao Xu , Yi Peng , Liu Yi , Li Hao , Chen Quan , Pan Bo , Xing Baoshan
Published: June 2022

The formation of environmentally persistent free radicals (EPFRs) is highly correlated with the structure of mineral crystal surfaces.
Temperature-dependent properties of fat in adipose tissue from pork, beef and lamb. Part 2: rheology and texture
Authors: Wijarnprecha Khakhanang , Fuhrmann Philipp , Gregson Christopher , Sillick Matt , Sonwai Sopark , Rousseau Dérick
Published: June 2022

Small and large deformation behaviour of back fat from pork/beef/lamb was dominated by the fat phase at room temperature and by the protein network at higher temperature. Our insights help to replicate fat functionality using plant-based materials.
Asiatic acid alleviates metabolism disorders in ob/ob mice: mechanistic insights
Authors: Niu Kaixia , Bai Pengpeng , Yang Bingbing , Feng Xinchi , Qiu Feng
Published: June 2022

Glucolipid metabolism disorders pose a serious and global health problem, and more effective prevention and treatment methods are urgently needed.
Direct conversion of isopropanol to C6+ branched compounds as high-octane gasoline blendstocks
Authors: Zhou Wei , Gao Zirui , Wang Meng , Wu Genghuang , Rong Junfeng , Ma Ding
Published: June 2022

An efficient one-pot process is developed to convert isopropanol to C6+ compounds with ideal branched-chain selectivity in the absence of H2, showing advantage in producing sustainable liquid fuel with a high-octane number.
Preparation, characterization and application of double yolk–shell structure magnetic molecularly imprinted polymers for extraction of 17β-estradiol
Authors: Lyu Hui , Wu Xinze , Yang Yinpeng , Chen Huaixia , Dang Xueping , Liu Xiaolan
Published: June 2022

Novel double yolk–shell structure molecularly imprinted polymers were synthesized by surface polymerization with 17β-estradiol as the template, followed by chemical etching.
Green-emitting silicon nanoparticles as a fluorescent probe for highly-sensitive crocin detection and pH sensing
Authors: Pan Congjie , Wen Qiaoqiao , Ma Longfei , Qin Xuezhen , Feng Suxiang
Published: June 2022

Novel green fluorescent silicon nanoparticles were synthesized via a one-pot hydrothermal method and utilized as a fluorescent probe for highly sensitive and accurate detection of crocin and pH sensing.
The electrocatalytic performance of Ni–AlO(OH)3@RGO for the reduction of CO2 to CO
Authors: Liu Errui , Liu Tianxia , Ma Xuejiao , Zhang Yaping
Published: June 2022

In the context of global carbon capping and carbon neutrality, electrochemical methods for converting CO2 to CO are among the most promising and valuable methods for harvesting greenhouse gas pollutants and producing renewable energy.
Titania (TiO2)/silica (SiO2) nanospheres or NSs amalgamated on a pencil graphite electrode to sensel-ascorbic acid electrochemically and augmented NSs for antimicrobial behaviour
Authors: Yadav Meena , Dhanda Monika , Arora Rajat , Jagdish Renu , Singh Geeta , Lata Suman
Published: June 2022

Synthesis of TiO2@SiO2nanospheres, modification on a pencil graphite electrode, electrochemical sensing study of the modified electrode for ascorbic acid detection and antimicrobial study of nanospheres have been investigated.
Atomic and nanosized Co species functionalized N-doped porous carbon hybrids for boosting electrocatalytic oxygen reduction
Authors: Yang Haihua , Qian Xiaorong , Zhang Na , Jia Xiating , Wen Zhiyan , Zhou Minjie
Published: June 2022

Co@NRPC electrocatalysts with excellent ORR performance were synthesized by pyrolyzing the hybrid precursors. Atomic CoNx and nanosized metallic Co species were active sites. Porous carbon hybrids ensured efficient charge and mass transport.
Design of highly stable metal/ZSM-5 catalysts for the shape-selective alkylation of toluene with methanol to para-xylene
Authors: Han He , Yang Hong , Zhang Anfeng , Ren Limin , Nie Xiaowa , Chen Chaoqiu , Liu Min , Shi Chuan , Song Chunshan , Guo Xinwen
Published: June 2022

The co-existence of (Pt + Ni) effectively inhibits the formation of low-carbon olefins during the alkylation of toluene with methanol via the dehydrogenation of methanol to carbon oxides and also the hydrogenation of olefins to paraffins.
Time-dependent dynamic multicolor afterglow of simple LiGa5O8:Eu3+/Tb3+particles for advanced anticounterfeiting and encryption
Authors: Zhang Peng , Xie Wanying , Wang Zhenbin , Lin Zenggang , Huang Xiuxiang , Ju Zhenghua , Liu Weisheng
Published: June 2022

A series of LiGa5O8:Eu3+/Tb3+phosphors exhibit time-dependent dynamic multicolor afterglow from blue to red or green over several seconds after ceasing the excitation.
Nickel/Brønsted acid dual-catalyzed regioselective C–H bond allylation of phenols with 1,3-dienes
Authors: Long Jiao , Ding Chao , Yin Guoyin
Published: June 2022

A nickel/Brønsted acid dual-catalyzed C-H bond ortho-allylation of phenols with 1,3-dienes has been developed. This methodology is readily applicable to the modification of complex pharmaceutical molecules.
Partial reductions of carboxylic acids and their derivatives to aldehydes
Authors: Yang Zhanhui
Published: June 2022

Recent advances in partial reductions of inert carboxylic acids and their derivatives to active aldehydes are reviewed.
Photoredox-catalyzed reaction of thianthrenium salts, sulfur dioxide and hydrazines
Authors: Li Qiangwei , Huang Jiapian , Cao Zenghui , Zhang Jun , Wu Jie
Published: June 2022

A photoredox-catalyzed reaction of thianthrenium salts, hydrazines and DABCO·(SO2)2 is accomplished, providing diverse arenesulfonohydrazides in moderate to good yields under mild reaction conditions.
An in situ grown amorphous ZrO2 layer on zeolite for enhanced phosphate adsorption
Authors: Tao Ying , Liu Shaojia , Dong Shizhi , Wang Chengguo , Qu Tao , Li Sinan , Li Lingling , Ma Zhuang
Published: June 2022

Zeolite supported amorphous zirconia layer with high specific surface area, abundant adsorption sites and excellent reusability hold a bright prospect in phosphate adsorption, yet it is proven to be still challenging to precisely regulate its synthesis.
Screening ionic liquids for dissolving hemicellulose by COSMO-RS based on the selective model
Authors: Zhao Jinzheng , Zhou Guohui , Fang Timing , Ying Shengzhe , Liu Xiaomin
Published: June 2022

Thousands of ILs with the potential to efficiently dissolve hemicellulose were screened by COSMO-RS, and the best model of hemicellulose was constructed and verified. This screening method will play an important role in sustainable development.
Fabrication of novel quantum dots for the estimation of COVID-19 antiviral drug using green chemistry: application to real human plasma
Authors: Salman Baher I. , Ibrahim Adel Ehab , El Deeb Sami , Saraya Roshdy E.
Published: June 2022

A novel, selective and sensitive fluorimetric method for determination of MOL using PA@QDs in real human plasma and pharmaceutical formulation.
Ferric ion detection mechanism of a dicarboxylic cellulose nanocrystal and a 7-amino-4-methylcoumarin based fluorescent chemosensor
Authors: Sun Xiaozheng , Li Jianye , He Qiang , Xue Yanhua , Bai Yu , Yang Yuyao , Wang Xiaogang , Wang Sun , Li Rui
Published: June 2022

As one of Earth's most widely distributed and abundant elements, iron impacts the natural environment and biological systems.
A mechanoresponsive nano-sized carrier achieves intracellular release of drug on external ultrasound stimulus
Authors: Catania Rosa , Onion David , Russo Emanuele , Zelzer Mischa , Mantovani Giuseppe , Huett Alan , Stolnik Snow
Published: June 2022

The study illustrates feasibility of the proposed concept where intracellular drug release from mechanoresponsive liposomes can be triggered on demand by external ultrasound stimulus.
Structures, and electronic and spectral properties of single-atom transition metal-doped boron clusters MB24− (M = Sc, Ti, V, Cr, Mn, Fe, Co, and Ni)
Authors: Li Shi-Xiong , Yang Yue-Ju , Chen De-Liang , Long Zheng-Wen
Published: June 2022

The transition metal-doped boron clusters MB24− (M = Sc, Ti, V, and Cr) have endohedral borospherene structures, MB24− (M = Mn, Fe, and Co) have similar distorted four-ring tube structures, and NiB24− has a quasi-planar structure.
A curcumin-based AIEE-active fluorescent probe for Cu2+detection in aqueous solution
Authors: Lin Yang , Yu Ao , Wang Jinjing , Kong Derui , Liu Hongtao , Li Jianwei , Jia Chunman
Published: June 2022

A curcumin-based AIEE-active L1 was synthesized and used to prepare an on-off fluorescent probe for Cu2+detection in aqueous solution.
A windowed carbon nanotube membrane for CO2/CH4 gas mixture penetration separation: insights from theoretical calculation
Authors: Miao Feng , Jiang Hao
Published: June 2022

Final snapshot of the CO2/CH4 gas mixture separating through the windowed carbon nanotube membrane.
Simultaneous quantification of apolipoproteins A-I, E, and J in human plasma by LC-MS/MS for clinical application to diabetes mellitus complicated with cardiovascular disease
Authors: Li Pengfei , Cong Yuting , Zhang Wen , Wang Lefeng , Ren Lulu , Li Xin , Yang Song , Zhang Zhiyong , Li Guoqing , Liu Lihong
Published: June 2022

Simultaneous quantification of apolipoproteins A-I, E, and J in human plasma by LC-MS/MS.
Target identification and occupancy measurement of necrosis avid agent rhein using bioorthogonal chemistry-enabling probes
Authors: Jiang Cuihua , Zhang Jian , Hu Shihe , Gao Meng , Zhang Dongjian , Yao Nan , Jin Qiaomei
Published: June 2022

Structural modification of rhein with transcyclooctene (TCO) led to the identification of rhein-TCO2 as the most active probe with specific necrosis affinity.
Metal- and base-free tandem sulfonylation/cyclization of 1,5-dienes with aryldiazonium salts via the insertion of sulfur dioxide
Authors: Wang Xiaohong , You Fengzhi , Xiong Baojian , Chen Lei , Zhang Xuemei , Lian Zhong
Published: June 2022

A new metal- and base-free method for synthesizing sulfonylated pyrrolin-2-ones from 1,5-dienes, aryldiazonium salts and SO2 is presented. This transformation features mild reaction conditions and broad substrate scope.
Coupling the topological defect phase to the extrinsic curvature in nematic shells
Authors: Pearce D. J. G.
Published: June 2022

Half integer topological defects within nematics on a curved surface. The extrinsic curvature induces a torque on the nematic which changes the shape of the defects and can induce a change in their phase.
Nearly hollow Ru–Cu–MoO2 octahedrons consisting of clusters and nanocrystals for high efficiency hydrogen evolution reaction
Authors: Liu Qian , Zhang Chengtian , Wang Pengyan , Chen Ding , Xiao Manjie , Chen Lei , Liu Suli , Yu Jun , Mu Shichun
Published: June 2022

With the space and synergic effects, nearly hollow Ru–Cu–MoO2 octahedrons exhibit fast hydrogen evolution reaction (HER) kinetics, which provides a new approach for designing outstanding performance catalysts for the HER and beyond.
Improving oxygen evolution activity by constructing a perylene imide based Z-scheme heterojunction
Authors: Zhang Jie , Yang Deshuai , Shi Jinyan , Wang Zejin , Zhu Wenbo , Wang Ying , Chen Zhaoxu
Published: June 2022

A Z-scheme charge transfer pathway was realized at the interface of CdS/PDI heterojunction by in situ growth of nanocrystalline CdS on the surface of perylene diimide (PDI), resulting in increased photocatalytic O2 evolution activity.
Nitrogen-doped hollow carbon nanoboxes in zwitterionic polymer hydrogel electrolyte for superior quasi-solid-state zinc-ion hybrid supercapacitors
Authors: Zhu Xiaoqing , Guo Fengjiao , Ji Chenchen , Mi Hongyu , Liu Chengzhe , Qiu Jieshan
Published: June 2022

A superior quasi-solid-state Zn-ion hybrid supercapacitor is rationally developed using a well-engineered hollow carbon cathode material with desirable Zn2+ storage and hydrogel electrolyte with high conductivity and dendrite-inhibition ability.
Ordered assembly of potassium cobalt hexacyanoferrate hollow multivoid nanocuboid arrays for high-performance aqueous K-ion batteries towards all-climate energy storage
Authors: Han Bing , Zhang Donglan , Liu Xueya , Wang Zili , Qu Weili , Zhang Sen , Deng Chao
Published: June 2022

The ordered arrays assembled from KCoFe-PBA based central hollow multivoid nanocuboids are the high-performance cathode for an AKIB that serves in all climates.
Recent progress of nanomedicine in secreted phospholipase A2 as a potential therapeutic target
Authors: Shi Diya , Feng Congshu , Xie Jinhai , Zhang Xi , Dai HongLian , Yan Lesan
Published: June 2022

This paper systematically reviews recent studies on nanomedicines targeting sPLA2 overexpression in many inflammatory diseases and various types of cancer during the past few years.
Polythiophene as a near full pH photo-antimicrobial
Authors: Lang Yunhe , Wang Ying , Zhou Ronghui , Zeng Xin , Zhao Hang , Wu Peng
Published: June 2022

Polythiophene (PT10), a cationic polymer, exhibited both broad-spectrum photo-antimicrobial activity (Gram positive, Gram negative, Fungal, and cyano-bacteria) and broad pH responsiveness (constant 1O2 generation at pH 2-13).
Long circulation and tumor-targeting biomimetic nanoparticles for efficient chemo/photothermal synergistic therapy
Authors: Zhang Yifan , Yue Xuanyu , Yang Shengchao , Li Xianglong , Cui Lin , Cui Xiaobin , Shi Yue , Liu Zhiyong , Guo Xuhong , Li Yongsheng
Published: June 2022

The biomimetic nanoparticle with enhanced long circulation and targeting ability is constructed by mesoporous silica coated with the polydopamine layers in biotin modified red blood cell membrane for efficient chemo/photothermal synergistic therapy.
Perylene diimide derivative dispersed in LDH as a new efficient red-emitting phosphor for LED applications
Authors: Guo Yixuan , Boyer Damien , Cisnetti Federico , Barros Anthony , Reveret François , Feng Yongjun , Chadeyron Geneviève , Leroux Fabrice
Published: June 2022

Substituted perylene diimide fluorophore exhibiting the ACQ effect in solid state becomes a strong red-emitting phosphor when confined into an LDH host. When combined with YAG : Ce, it enables producing warm white light with high CRI.
White vertical organic permeable-base light-emitting transistors obtained by mixing of blue exciton and orange interface exciplex emissions
Authors: Leitonas Karolis , Guzauskas Matas , Tsiko Uliana , Simokaitiene Jurate , Volyniuk Dmytro , Grazulevicius Juozas Vidas
Published: June 2022

White vertical organic permeable-base light-emitting transistors based on a newly developed blue emitter 4,6-bis(4-(9H-carbazol-9-yl)phenyl)pyrimidine-5-carbonitrile with orange exciplex forming ability is developed.
Enhanced microwave absorption properties of reduced graphene oxide/TiO2 nanowire composites synthesized via simultaneous carbonation and hydrogenation
Authors: Shi Shuangqiang , Hao Sijia , Yang Cheng , Chen Yubin , Chu Hairong , Dai Shenglong
Published: June 2022

High-performance microwave absorbing materials of reduced graphene oxide combined with hydrogenated TiO2 nanowires were prepared via a solvothermal and annealing method, in which carbonation and hydrogenation processes were achieved simultaneously.
Shear-induced alignment of low-aspect-ratio nanorods for modulations of multiple optical properties
Authors: Chen Zhijie , Li Hai , Li Chaoran , Liu Jingjing , Hua Wenqiang , Zhang Xiaojie , Zhang Chengcheng , Xiao Mengqi , Xu Ao-Bo , He Le , Zhang Xiaohong
Published: June 2022

A magic liquid is a material whose transmittance and structural color can be dynamically modulated upon flowing. This study opens a novel type of responsive smart optical materials with potential new applications in diverse areas.
Selective autophagy: adding precision in plant immunity
Authors: Leong Jia Xuan , Langin Gautier , Üstün Suayib
Published: June 2022

Plant immunity is antagonized by pathogenic effectors during interactions with bacteria, viruses or oomycetes. These effectors target core plant processes to promote infection. One such core plant process is autophagy, a conserved proteolytic pathway involved in ensuring cellular homeostasis. It involves the formation of autophagosomes around proteins destined for autophagic degradation. Many cellular components from organelles, aggregates, inactive or misfolded proteins have been found to be degraded via autophagy. Increasing evidence points to a high degree of specificity during the targeting of these components, strengthening the idea of selective autophagy. Selective autophagy receptors bridge the gap between target proteins and the forming autophagosome. To achieve this, the receptors are able to recognize specifically their target proteins in a ubiquitin-dependent or -independent manner, and to bind to ATG8 via canonical or non-canonical ATG8-interacting motifs. Some receptors have also been shown to require oligomerization to achieve their function in autophagic degradation. We summarize the recent advances in the role of selective autophagy in plant immunity and highlight NBR1 as a key player. However, not many selective autophagy receptors, especially those functioning in immunity, have been characterized in plants. We propose an in silico approach to identify novel receptors, by screening the Arabidopsis proteome for proteins containing features theoretically needed for a selective autophagy receptor. To corroborate these data, the transcript levels of these proteins during immune response are also investigated using public databases. We further highlight the novel perspectives and applications introduced by immunity-related selective autophagy studies, demonstrating its importance in research.
Analytical investigations on discrimination of partial discharge defective cable termination among healthy ones with joint sheath‐ground connection
Authors: Babaee Abbas , Shahinfar Kian , Shahrtash Seyed Mohammad
Published: June 2022

Industrial complexes suffer from crosstalk of Partial Discharge (PD) defects in cable terminations connected to the same medium voltage busbars. This phenomenon happens because the sheath‐ground connections of all cables of one switchboard are first fastened together and then connected to ground, which leads to PD pulses being induced from the source termination to others. In this paper, based on mathematical investigations on PD pulse propagation and by introducing an energy‐based index, a simple rule‐based procedure is proposed for discrimination between defective terminations and healthy ones connected to common busbars. The proposed procedure has been verified by simulations even when there exists noise pollution or multiple defects of different strengths.
Activity location recognition from mobile phone data using improved HAC and Bi‐LSTM
Authors: Jiang Haihang , Yang Fei , Su Weijie , Yao Zhenxing , Dai Zhuang
Published: June 2022

Existing studies on activity location recognition based on mobile phone data has made great progresses. However, current studies generally assume constant distance threshold when performing activity location clustering, and ignore the influence of base station layout on positioning accuracies of mobile phone data. Given different recognition accuracy requirements, the authors propose two methods to recognise activity locations: (1) An improved hierarchical agglomerative clustering algorithm that integrates a genetic algorithm component to search and dynamically adjust optimal distance thresholds based on base station densities; (2) The recognition method based on Bi‐directional long short‐term memory network that classifies travel statuses of mobile phone traces. Results show that, compared with existing methods, the activity location recognition accuracy of the proposed hierarchical agglomerative clustering algorithm increases by about 5%. The Bi‐directional long short‐term memory network model further outperforms the improved hierarchical agglomerative clustering, especially in the aspect of recognising non‐commuting activity locations. However, the Bi‐directional long short‐term memory network model training requires the users’ actual travel information, so there are certain obstacles in popularising Bi‐directional long short‐term memory network in practice.
Overview in the eclipse model-driven architecture tools
Authors: Natek Hamza , Elmounadi Abdelali , Guerouate Fatima
Published: June 2022

With the evolution of software engineering and the need to create multiplatform applications has increased in our daily life, but the fact to have a custom code for each platform is costly for companies, having a solution to save development time has become primordial, hence it comes to the model-driven architecture approach. This approach provides the ability to keep the business logic which is represented as the model and apply the transformation to generate these applications. Implementing and applying this transformation can be done by using some tools that can help generate code from models or do reverse engineering to go from code to models. This paper aims to shade light to the MDA approach and the used tools to implement the concepts of this approach to help the readers to save time and well understand the approach.
SDN/NFV architectures for edge-cloud oriented IoT
Authors: Jaadouni Hatim , Saadi Chaimae , Chaoui Habiba
Published: June 2022

Thanks to Software Defined Networking (SDN) and Network Functions Virtualization (NFV), the use and behaviour of interconnect network backhauls to provide virtualization services has changed completely. Several benefits have been discovered in various application areas that combine SDN and NFV. As a result, we explored the SDN / NFV paradigm to determine if network services could be efficiently deployed, managed, and distributed to end users. The Internet of Things (IoT) is inseparable from improving SDN / b NFV to improve this task. However, until now, problems related to Edge cloud communications and network services have not been effectively mitigated. The rest of this article is organized as follows. We first present the background of this work. Then we present the new technologies around these topics and the extended architecture, and e. Finally, we conclude this work.
OpenCL and OpenGL Implementation of Simultaneous Localization and Mapping Algorithm using High-End GPU
Authors: Abouzahir Mohamed , Latif Rachid , Ramzi Mustapha , Sbihi Mohammed
Published: June 2022

Simultaneous Localization And Mapping (SLAM) algorithms are being used in many robotic applications and autonomous navigation systems. The FastSLAM2.0 addresses an issue of the SLAM problem and allows a robot to navigate in an unknown environment. Several works have presented many algorithmic optimizations to reduce the computational complexity of such algorithm. In this paper, a GPGPU (general-purpose computing on graphics processing units) is exploited to achieve a parallel implementation of the FastSLAM2.0. The GPGPU acceleration is done using two different implementations for parallel programming. The first implementation used OpenGL shading language which is based on the characteristics of graphics hardwares. The second implementation used OpenCL which allows hardware acceleration across heterogeneous architectures. We also explored the impact of the two approaches on the the resulting GPGPU implementation. A comparison related to processing-time and localization accuracy is made using a real indoor dataset. Our results show a significant speedup of the GPGPU implementation over a Quad-Core CPU. We show also that, by adopting the same optimization methodology using the two approachs, the OpenCL implementation is faster and suitable for GPGPU accelerated SLAM algorithms.
Coherence and flow-maximization of a one-way valve
Authors: Corli Andrea , Razafison Ulrich , Rosini Massimiliano D.
Published: June 2022

We consider a mathematical model for the gas flow through a one-way valve and focus on two issues. First, we propose a way to eliminate the chattering (the fast switch on and off of the valve) by slightly modifying the design of the valve. This mathematically amounts to the construction of a coupling Riemann solver with a suitable stability property, namely, coherence. We provide a numerical comparison of the behavior of the two valves. Second, we analyze, both analytically and numerically, for several significative situations, the maximization of the flow through the modified valve according to a control parameter of the valve and time.
Astaxanthin and omega-3-rich oil from fermented Acetes (Cincalok) and its application as bioactive additive and sunscreen in lotion
Authors: Rahmalia Winda , Dasilia Christina , Usman Thamrin , Prayitno Dwi Imam , Nurbaeti Siti Nani
Published: June 2022

Shrimp species have been reported to contain astaxanthin, which has high antioxidant activities. They also contain omega-3 in the form of docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), which can act as photoprotective agents that maintain healthy skin from reactive oxygen species (ROS) due to exposure to UV rays. In addition, fermentation has become an essential pre-treatment to extract the bioactive components in shrimp more easily. This study aims to extract oil from cincalok, a traditional Indonesian (especially in West Kalimantan) food made from Acetes shrimp fermented for 7–15 days. Cincalok oil was added to the lotion as a bioactive additive and sunscreen. Cincalok oil was extracted by the soxhletation method using n-hexane as solvent. The oil was then analyzed for its physicochemical properties, including density, viscosity, possible heavy metal contamination, and the profile of the fatty acids contained. The yield of cincalok oil extraction was 1.09 ± 0.05%, with the highest fatty acid content of 21.70% palmitic acid, 10.99% DHA, and 10.33% EPA. Cincalok oil also contains astaxanthin of 0.38 ± 0.02 mg/L oil. It has a viscosity of 69.71 ± 0.12 cP with a density of 0.93 ± 0.03 g/cm3. The analysis data of ICP-AES shows that there is no heavy metal contamination. The SPF value produced from cincalok oil lotion at 5 and 10% variations of cincalok oil was 15.17 ± 0.09 and 30.28 ± 0.49, respectively. The SPF value of lotion with the addition of cincalok oil was much greater than that of the base lotion, which was 2.16 ± 0.12.
The COVID-19 Pandemic Impact on Breast Cancer Diagnosis: A Retrospective Study
Authors: Negrao Erika Marina Solla , Cabello Cesar , Conz Livia , Mauad Edmundo Carvalho , Zeferino Luiz Carlos , Vale Diama Bhadra
Published: June 2022

Objective This study aimed to evaluate the diagnostic profile of breast cancer cases during the coronavirus disease 2019 (COVID-19) pandemic compared with the previous year.

Methods It is a retrospective study of cases diagnosed by a reference service in the public health system of Campinas, SP, Brazil. Two periods were analyzed: March to October 2019 (preCOVID period) and March to October 2020 (COVID-period). All women diagnosed during the periods were included. The Chi-Squared or Fisher exact and Mann-Whitney tests were used.

Results In the preCOVID and COVID periods, breast cancers were diagnosed, respectively, in 115 vs 59 women, and the mean ages at diagnosis were 55 and 57 years (p = 0.339). In the COVID period, the family history of breast cancer was more observed (9.6% vs 29.8%, p < 0.001), cases were more frequently symptomatic (50.4% vs 79.7%, p < 0.001) and had more frequently palpable masses (56.5% vs 79.7%, p = 0.003). In symptomatic women, the mean number of days from symptom to mammography were 233.6 (458.3) in 2019 and 152.1 (151.5) in 2020 (p = 0.871). Among invasive tumors, the proportion of breast cancers in stages I and II was slightly higher in the COVID period, although not significantly (76.7% vs 82.4%, p = 0.428). Also in the COVID period, the frequency of luminal A-like tumors was lower (29.2% vs 11.8%, p = 0.018), of triple-negative tumors was twice as high (10.1% vs 21.6%, p = 0.062), and of estrogen receptor-positive tumors was lower (82.2% vs 66.0%, p = 0.030).

Conclusion During the COVID-19 pandemic, breast cancer diagnoses were reduced. Cases detected were suggestive of a worse prognosis: symptomatic women with palpable masses and more aggressive subtypes. Indolent tumors were those more sensitive to the interruption in screening.
First-principles study of electronic and optical properties of small edge-functionalized penta-graphene quantum dots
Authors: Dang Minh Triet , Bich Thao Pham Thi , Ngoc Thao Tran Thi , Tien Nguyen Thanh
Published: June 2022

Tailoring the optoelectronic properties of semiconductor quantum dots is essential for designing functionalized nanoscale devices. In this work, we use first-principles calculations to study the optoelectronic properties of small penta-graphene quantum dots (PGQDs) with various edge-functionalized groups, including hydrogen, halogen (fluorine, chlorine, and bromine), and hydroxyl functional groups. It is evident that these quantum dots, especially those passivated by hydrogen atoms, are thermally stable in vacuum. Moreover, the larger the quantum dots, the more negative the formation energy on stability could reach, thus forming thermodynamically more stable quantum dots. All investigated PGQDs exhibit semiconductor properties. Their bandgaps decrease with an increase in the size of the quantum dots, resulting from the hybridization of sp2 and sp3 carbon atoms and from the charge depletion or accumulation between the passivated atoms and the principal components upon interactions. Concurrently, this study aims to explain the optical absorption anisotropy induced by the edge-functionalized groups of PGQDs under multiple incident light polarizations. These results highlight the use of edge-functionalized groups to develop the next generation of optoelectronic devices.
Rapid increase in strength of vortices and a directional net flow due to Marangoni force in Büttiker–Landauer ratchet
Authors: Sugioka Hideyuki , Someya Yusuke
Published: June 2022

The control of the vortex flow is interesting because it may open a new way to use low-grade energy. In this study, we report a rapid increase in the strength of vortices and a directional net flow at the classical threshold Rayleigh number in the Büttiker–Landauer (BL) ratchet. In particular, by increasing the temperature difference of the BL ratchet made by connecting plural liquid chambers with flow channels that generate Marangoni force, we succeed in observing this transition. Furthermore, we show that our simple transition model that considers a critical Rayleigh number explains the experimental results qualitatively. In addition, as a result, we succeed in producing a net flow without using the additional guide-walls that prevent the isolation of the vortex flows among the plural liquid chambers.
Effect of light polarization on plasmon-induced charge transfer
Authors: Ma Jie , Wang Jiayuan , Gao Shiwu
Published: June 2022

Plasmonic nanoclusters can strongly absorb light energy and generate hot carriers, which have great potentials in photovoltaic and photocatalytic applications. A vital step for those plasmonic applications is the charge transfer at the metal–semiconductor interface. The effect of the light polarization on the charge transfer has not been theoretically investigated so far. Here, we take the Ag–TiO2 system as a model system to study the polarization effect using time-dependent density functional theory simulations. We find that the charge transfer is sensitive to the light polarization, which has its origin in the polarization-dependent hot carrier distributions. For the linearly polarized light, it shows a sine-square dependence on the polar angle, indicating that the charge transfer response to the linear polarization can be decomposed into components perpendicular and parallel to the interface. We also find that there exists directional charge transfer with a circular light polarization. Our results demonstrate that the light polarization can significantly affect the charge transfer behavior and, thus, offer a new degree of freedom to manipulate the plasmonic applications.
Pore-scale systematic study on the disconnection of bulk gas phase during water imbibition using visualized micromodels
Authors: Tian Jian , Chen Qiang , Qin Chaozhong , Kang Yili , Jia Na , Xi Zhiyu
Published: June 2022

When water imbibes into tight rocks, the disconnection of bulk gas phase will significantly impact the performance of gas recovery. In this work, we have conducted a systematic micromodel study on the disconnection of gas phase during water imbibition. Seven types of micromodels were designed that can geometrically mimic basic pore structures of a tight sandstone. Then, we conducted capillary-dominant imbibition experiments and analyzed the effects of pore geometry and pore-throat ratio on the transient evolutions of gas–water interfaces. Our pore-scale results reveal that snap-off and bypassing flows are the two main mechanisms that determine disconnection and entrapment of the gas phase. Moreover, we qualitatively linked the pore-scale two-phase displacements to the core-scale “permeability jail” phenomenon (i.e., nearly immobile of non-wetting and wetting phases across a wide range of saturation values). Our study will enrich the knowledge of entrapment behaviors of the gas phase during water imbibition into tight formations.
Comparison between longitudinal viscoelastic relaxation and sound dispersion of molecular liquids on the molecular scale
Authors: Yamaguchi Tsuyoshi
Published: June 2022

Molecular dynamics simulation on some molecular liquids was performed to study sound dispersion on the molecular scale. The sound velocity was determined from the intermediate scattering function, and the relation between the longitudinal modulus and frequency was compared with the frequency-dependent longitudinal modulus in the q = 0 limit evaluated by the Kubo–Green theory. The sound dispersion of a monoatomic liquid up to qσ ≅ 2 was almost quantitatively explained by the viscoelasticity in the q = 0 limit when the wavenumber dependence of the heat capacity ratio was taken into account. The situation was similar for a polyatomic molecular liquid for which the intramolecular degrees of freedom were fixed. For a polyatomic liquid with intramolecular degrees of freedom, the sound dispersion on the molecular scale was connected to the high-frequency limit of the ultrasonic relaxation mode assigned to the vibrational energy relaxation. After subtracting the contribution of the vibrational energy relaxation, both the longitudinal viscoelasticity and the sound dispersion depended little on the presence of intramolecular degrees of freedom.
Picosecond optospintronic tunnel junctions
Authors: Wang Luding , Cheng Houyi , Li Pingzhi , van Hees Youri L. W. , Liu Yang , Cao Kaihua , Lavrijsen Reinoud , Lin Xiaoyang , Koopmans Bert , Zhao Weisheng
Published: June 2022

Significance

Spintronic devices have become promising candidates for next-generation memory architecture. However, state-of-the-art devices, such as perpendicular magnetic tunnel junctions (MTJs), are still fundamentally constrained by a subnanosecond speed limitation, which has remained a long-lasting scientific obstacle in the ultrafast spintronics field. The highlight of our work is the demonstration of an optospintronic tunnel junction, an all-optical MTJ device which emerges as a new category of integrated photonic–spintronic memory. We demonstrate 1) laser-induced deterministic and efficient writing by an all-optical approach and electrical readout by tunnel magnetoresistance, 2) writing speed within 10 ps, demonstrated by femtosecond-resolved measurements, and 3) integration with state-of-the-art MTJ performance and a complementary metal–oxide–semiconductor-compatible fabrication progress.
Prolonged eye‐hand decoupling deficits in young adults with a history of concussion from adolescence
Authors: Phillips Brandon , Adkins Jaxon C. , Jones Briasha D. , Dalecki Marc
Published: June 2022

Previous studies reported that adolescents with a sport‐related concussion history showed prolonged visuomotor deficits during an eye‐hand decoupling task until around 1.5–2 years post‐event. The present study expands this work, examining whether such deficits do or do not emerge when testing individuals in young adulthood, i.e. later post‐event. Twenty‐one non‐athlete college students with sport‐related concussion history from adolescence (CH; M = 21 yrs.; M = 46 months post‐concussion, range 10–90 months) and twenty controls with no history of concussion (NoH; M = 21 yrs.) performed two touchscreen‐based visuomotor tasks. It included a coupled task where eyes and hand moved in similar directions, and decoupled‐task with eyes and hand going to different directions. Movement planning (e.g. reaction time, initial direction error) and execution (e.g. movement time, path length) related variables were analyzed in both groups and conditions. Movement execution measures were similar for both groups and conditions (all p > 0.05). However, movement planning was impaired in the CH participants in the eye‐hand decoupling condition (p < 0.05). CH's initial direction error was larger (i.e. worse spatial movement planning) than in the NoH group. Although movement execution deficits shown in earlier work in youth were not present in young adults, the present results suggest that a sport‐related concussion sustained in adolescence can lead to prolonged deficits with spatial movement planning processes while performing eye‐hand decoupling tasks about four years post‐injury. Further research should investigate whether these deficits continue into adulthood and expand control on time since concussion and number of concussion metrics.

Highlights

Young adult college students with a history of a sport‐related concussion from adolescence, tested about four years post‐incident, showed spatial movement preparation deficits during an eye‐hand decoupling visuomotor task.

Eye‐hand reversal decoupling errors also correlated with time since concussion in those with concussion history.

These prolonged eye‐hand decoupling deficits may emerge with ongoing time post‐event, as comparable deficits were absent in previous work where youth were tested sooner post‐injury.

Our current findings point towards long‐lasting performance impairments in young adult non‐athletes after a sport‐related concussion from adolescence.
Reconciliation of Theoretical Lifetimes of the 5s5p

3P2o

Metastable State for 88Sr with Measurement: The Role of the Blackbody-Radiation-Induced Decay
Authors: Lu Benquan , Lu Xiaotong , Li Jiguang , Chang Hong
Published: June 2022

We conducted measurement and calculation to resolve the long-standing large discrepancy in the metastable state lifetime for the 88Sr atom between theoretical and experimental results. The present lifetime

τ
=

830

−
240

+
600

s, measured using the magneto-optical trap as a photon amplifier to detect the weak decay events, is approximately 60% larger than the previous experimental value

τ
=

520

−
140

+
310

s. By considering the electron correlation effects in the framework of the multiconfiguration Dirac–Hartree–Fock theory, we obtained a theoretical lifetime of 1079(54) s, which lies in the range of measurements with error bars. Furthermore, we considered the higher-order electron correlation and Breit interaction to control the uncertainty of the theoretical calculation. The significant improvement in the agreement between calculations and measurements is attributed to the updated blackbody radiation-induced decay rate.
High-Temperature Superconducting YBa2Cu3O7 – δ
Josephson Junction Fabricated with a Focused Helium Ion Beam
Authors: Chen Ziwen , Li Yulong , Zhu Rui , Xu Jun , Xu Tiequan , Yin Dali , Cai Xinwei , Wang Yue , Lu Jianming , Zhang Yan , Ma Ping
Published: June 2022

As a newly developed method for fabricating Josephson junctions, a focused helium ion beam has the advantage of producing reliable and reproducible junctions. We fabricated Josephson junctions with a focused helium ion beam on our 50 nm YBa2Cu3O7 – δ
(YBCO) thin films. We focused on the junction with irradiation doses ranging from 100 to 300 ions/nm and demonstrated that the junction barrier can be modulated by the ion dose and that within this dose range, the junctions behave like superconductor–normal conductor–superconductor junctions. The measurements of the I–V characteristics, Fraunhofer diffraction pattern, and Shapiro steps of the junctions clearly show AC and DC Josephson effects. Our findings demonstrate high reproducibility of junction fabrication using a focused helium ion beam and suggest that commercial devices based on this nanotechnology could operate at liquid nitrogen temperatures.
Relativistic coupled cluster calculations of the electron affinity and ionization potential of Nh(113)
Authors: Guo Yangyang , Borschevsky Anastasia , Eliav Ephraim , Pašteka Lukáš F
Published: June 2022

Theoretical calculations based on the Dirac–Coulomb–Breit relativistic coupled cluster method have been carried out for the electron affinities and ionization potentials (IPs) of the superheavy element nihonium (Nh) and its lighter homologues In and Tl. The In and Tl calculations are in agreement with measurement within uncertainties. For Nh, where experiment is yet unknown, we predict the IP of 7.569(48) eV and electron affinity of 0.776(30) eV.
Rolling bearing fault diagnosis method based on SSAE and softmax classifier with improved K-fold cross-validation
Authors: Wang Junxiang , Zhan Changshu , Yu Di , Zhao Qiancheng , Xie Zhijie
Published: June 2022

Since rolling bearings determine the stable operation of industrial equipment, it is necessary to diagnose thir faults. To improve fault diagnosis accuracy, this paper proposes a method based on a stacked sparse autoencoder (SSAE) combined with a softmax classifier. First, SSAE is used to extract the frequency-domain features of vibration signals. Then, an improved K-fold cross-validation is employed to obtain the features’ pre-train set, train set, and test set. Finally, the SSAE-model is constructed via the pre-train set, while the tuned model is built via the train set. The model performance is evaluated based on accuracy, macro-precision, macro-recall, and macro-F1 score. The proposed model is validated by the Case Western Reserve University and XJTU-SY data with 99.15% and 100% accuracy, respectively.
Quantum lower and upper speed limits using reference evolutions
Authors: Takahashi Kazutaka
Published: June 2022

We derive generalized quantum speed limit inequalities that represent limitations on the time evolution of quantum states. They are extensions of the original inequality and are applied to the overlap between the time-evolved state and an arbitrary state. We can discuss the lower limit of the Bures angle, in addition to the upper limit as in the original inequality, which allows us to evaluate the lower and upper bounds of processing time for the evolution toward a target state. The inequalities are written by using an arbitrary reference state and are flexibly used to obtain a tight bound. We demonstrate these properties by using the twisted Landau–Zener model, the Grover Hamiltonian, and a periodically-oscillating Hamiltonian.
Anomalous transport in driven periodic systems: distribution of the absolute negative mobility effect in the parameter space
Authors: Wiśniewski Mateusz , Spiechowicz Jakub
Published: June 2022

Absolute negative mobility is one of the most paradoxical forms of anomalous transport behaviour. At the first glance it contradicts the superposition principle and the second law of thermodynamics, however, its fascinating nature bridges nonlinearity and nonequilibrium in which these fundamental rules are no longer valid. We consider a paradigmatic model of the nonlinear Brownian motion in a driven periodic system which exhibits the absolute negative mobility. So far research on this anomalous transport feature has been limited mostly to the single case studies due to the fact that this model possesses the complex multidimensional parameter space. In contrast, here we harvest GPU supercomputers to analyze the distribution of negative mobility in the parameter space. We consider nearly 109 parameter regimes to discuss how the emergence of negative mobility depends on the system parameters as well as provide the optimal ones for which it occurs most frequently.