Supergroup algorithm and knowledge graph construction in museum digital display platform.

In response to the problems of low entity recognition accuracy, low user satisfaction, and weak interactivity in the construction of knowledge graph for digital display of museum cultural relics, this article studied the application of supergroup algorithms and knowledge graph construction in museum digital display platforms to solve the existing problems. By utilizing the K-means algorithm in the supergroup algorithm to conduct a survey of visitors to Museum A and analyze the behavior of 180 selected visitors, the display effect and audience satisfaction can be improved. Various knowledge graph technologies were utilized to construct a knowledge graph of museum cultural relics.

Improving the hydrothermal stability of Al-rich Cu-SSZ-13 zeolite Pr-ion modification.

Al-rich (Si/Al = 4-6) Cu-SSZ-13 has been recognized as one of the potential catalysts to replace the commercial Cu-SSZ-13 (Si/Al = 10-12) towards ammonia-assisted selective catalytic reduction (NH-SCR). However, poor hydrothermal stability is a great obstacle for Al-rich zeolites to meet the catalytic applications containing water vapor. Herein, we demonstrate that the hydrothermal stability of Al-rich Cu-SSZ-13 can be dramatically enhanced Pr-ion modification.

Methane-HS Reforming Catalyzed by Carbon and Metal Sulfide Stabilized Sulfur Dimers.

HS reforming of methane (HRM) provides a potential strategy to directly utilize sour natural gas for the production of CO-free H and sulfur chemicals. Several carbon allotropes were found to be active and selective for HRM, while the additional presence of transition metals led to further rate enhancements and outstanding stability (e.g.

Cu-OFF/ERI Zeolite: Intergrowth Structure Synergistically Boosting Selective Catalytic Reduction of NO with NH.

Cu-SSZ-13 has been commercialized for selective catalytic reduction with ammonia (NH-SCR) to remove NO from diesel exhaust. As its synthesis usually requires toxic and costly organic templates, the discovery of alternative Cu-based zeolite catalysts with organotemplate-free synthesis and comparable or even superior NH-SCR activity to that of Cu-SSZ-13 is of great academic and industrial significance. Herein, we demonstrated that Cu-T with an intergrowth structure of offretite () and erionite () synthesized by an organotemplate-free method showed better catalytic performance than Cu-ERI and Cu-OFF as well as Cu-SSZ-13.

Complete Metal Recycling from Lithium-Ion Batteries Enabled by Hydrogen Evolution Catalyst Reconstruction.

Mass adoption of electric vehicles and the depletion of finite metal resources make it imperative to recycle lithium-ion batteries (LIBs). However, current recycling routes of pyrometallurgy and hydrometallurgy are mainly developed for LiCoO and suffer from great energy inputs and extensive processing; thus, alternative versatile and green approaches are in urgent demand. Here, we report an ingenious and versatile strategy for recycling LIBs via catalyst reconstruction, using hydrogen evolution reaction as a proof of concept.

Designing virtual reality based 3D modeling and interaction technologies for museums.

In China, museums are of great historical significance, which can greatly improve the country's cultural standards. With the advent of new media and economic times, people's behavior and way of thinking have changed, so they are less and less interested in traditional museum displays. How to create a museum moving image that meets the aesthetic and experiential requirements of the general audience has become critical.

Interplay between copper redox and transfer and support acidity and topology in low temperature NH-SCR.

Low-temperature standard NH-SCR over copper-exchanged zeolite catalysts occurs on NH-solvated Cu-ion active sites in a quasi-homogeneous manner. As key kinetically relevant reaction steps, the reaction intermediate Cu(NH) ion hydrolyzes to Cu(OH)(NH) ion to gain redox activity. The Cu(OH)(NH) ion also transfers between neighboring zeolite cages to form highly reactive reaction intermediates.

[Development of Self Training Device for Lung Function Compliance Guided by Meridians].

Objective: To develop a self deep breathing training device which can improve lung function compliance and blood oxygen saturation.

Methods: The device consists of four parts:flow tube, measuring cylinder, mobile phone holder and meridian guidance audio-visual synthesis training software. The flow tube measures the flow rate of inhaled gas, the metering cylinder measures the total amount of inhaled gas, and the mobile phone rack is equipped with a mobile phone storing the meridian guidance audio-visual synthesis training software.

3D-to-2D Transformation of Manganese-Based Layered Silicates for Tumor-Specific T-Weighted Magnetic Resonance Imaging with High Signal-to-Noise and Excretability.

Recently, Mn(II)-based T-weighted magnetic resonance imaging (MRI) contrast agents (CAs) have been explored widely for cancer diagnosis. However, the "always-on" properties and poor excretability of the conventional Mn(II)-based CAs leads to high background signals and unsatisfactory clearance from the body. Here, we report an " three-dimensional to two-dimensional (3D-to-2D) transformation" method to prepare novel excretable 2D manganese-based layered silicates (Mn-LSNs) with extremely high signal-to-noise for tumor-specific MR imaging for the first time.

Extraction-Induced Fabrication of Yolk-Shell-Structured Nanoparticles with Deformable Micellar Cores and Mesoporous Silica Shells for Multidrug Delivery.

Yolk-shell-structured nanoparticles (YSNs) provide useful carriers for applications in biomedicine and catalysis due to the excellent loading capability and versatile functionality of the flexible core and porous shell. Unfortunately, the reported YSNs always require complex multistep synthesis processes and a harsh hard-template etching strategy. Herein, a facile "selective extraction" strategy is developed to synthesize yolk-shell-structured polymer@void@mSiO nanoparticles (designated as YSPNs) comprising deformable and soft polystyrene--poly(acrylic acid) (PS--PAA) micellar cores and mesoporous silica shells.

Biodegradable organosilica magnetic micelles for magnetically targeted MRI and GSH-triggered tumor chemotherapy.

Recently, block copolymer micelles have attracted widespread attention due to their controlled biodegradability and excellent loading capability. Unfortunately, the poor in vivo stability and low delivery efficiency of drug-loaded micelles greatly hampered their biomedical applications. Herein, we develop a new kind of biodegradable magnetite/doxorubicin (Fe3O4/DOX) co-loaded PEGylated organosilica micelles (designated as FDPOMs) with both high circulating stability and smart GSH-triggered biodegradability for magnetically targeted magnetic resonance imaging (MRI) and tumor chemotherapy.

Facile synthesis of organosilica-capped mesoporous silica nanocarriers with selective redox-triggered drug release properties for safe tumor chemotherapy.

As drug-delivery carriers for cancer chemotherapy, gatekeeper-capped mesoporous silica nanoparticles (MSNs) have been widely studied due to their high drug-loading capability, controlled drug release property and good biocompatibility. However, the currently reported gatekeeper-capped MSNs suffer from complex synthetic procedures, potential toxicity of gatekeepers, unsatisfactory control on drug stimuli-release, etc. In this work, we develop a simple but efficient approach to fabricate PEGylated organosilica-capped mesoporous silica nanoparticles (POMSNs) by employing a disulfide-doped organosilica coating as the gatekeeper formed by the hydrolysis and condensation of a silane coupling agent 3-(mercaptopropyl)trimethoxysilane (MPTMS) to block the mesopores of MSNs.

Confined growth of multiple gold nanorices in dual-mesoporous silica nanospheres for improved computed tomography imaging and photothermal therapy.

Introduction: In this work, we have developed a novel "confined-growth" strategy to synthesize PEGylated multiple gold nanorices-encapsulated dual-mesoporous silica nanospheres (designated as PEGylated MGNRs@DMSSs) containing both small mesopores (2.5 nm) in the shell and large mesopores (21.7 nm) in the core based on a well-established, seed-mediated growth method.

[Study on the Characteristics of EMG Signal of the Masticatory Muscles in Different Materials].

Objective: To investigate the activities of different soft and hard materials during right chewing masticatory muscles, describing the masticatory muscles of time domain and frequency domain features.

Methods: 11 experimental subjects who conform to the standards of measurement chew two materials of different soft and hard texture. Then record surface EMG of each bilateral temporalis anterior bundle, masseter, two bilateral anterior abdominal muscles, analysis to 5 kinds of characteristics of the study of EMG.

Synthesis of gold Nanoshells through Improved Seed-Mediated Growth Approach: Brust-like, in Situ Seed Formation.

Gold nanoshells have shown great potentials in various fields. However, the widely used seed-mediated growth method based on a silica template for gold nanoshells is a complex and time-consuming procedure. In this work, mercaptosilica was first used as a template to synthesize gold nanoshells through improved seed-mediated growth method.

Mesoporous manganese silicate coated silica nanoparticles as multi-stimuli-responsive T1-MRI contrast agents and drug delivery carriers.

Unlabelled: A novel kind of monodisperse mesoporous manganese silicate coated silica nanoparticle (MMSSN) as a highly efficient T1-weighted MRI contrast agent (CA) and drug carrier for cancer diagnosis and chemotherapy has been constructed by a modified "SiO2 sacrifice and in situ silicate growth" approach under a relatively low hydrothermal temperature and alkali-free condition. The mesoporous manganese silicate shell provides a large specific surface area and abundant exposed Mn paramagnetic centers to water molecules, which endows the MMSSNs with extraordinarily high longitudinal relaxivity. Meanwhile, the MMSSNs presented an efficient pH/redox-responsive T1-MRI feature based on the significant enhancement of relaxation rate (r1) stimulated by mild acidic environment or reducing agent (GSH) both in vitro and in vivo.

[Design of Rehabilitation Training System with Electromyography Feedback for Stroke Patients].

This paper proposed a rehabilitation training system with electromyography (sEMG) feedback for stroke patients based on ARM embedded system and LabVIEW. The system can achieve real-time acquisition, processing and dualview of multi-channel sEMGs and compute related sEMG parameters including iEMG, RMS, MPF and co-contraction ratio. The system was detected by clinical experiments and related inspection department.

Zr-based metal-organic frameworks for specific and size-selective enrichment of phosphopeptides with simultaneous exclusion of proteins.

The accurate characterization of low abundance phosphopeptides based on mass spectrometry (MS) techniques remains a challenge due to signal suppression by the large excess of interfering proteins and non-phosphopeptides. This demands better methods to effectively enrich phosphopeptides prior to MS analysis. In the current work, facilely synthesized Zr-based metal-organic frameworks (MOFs) of UiO-66 and UiO-67 have been successfully exploited as novel affinity materials for the enrichment and analysis of phosphopeptides.

Effective adsorption and enhanced removal of organophosphorus pesticides from aqueous solution by Zr-based MOFs of UiO-67.

Though many efforts have been devoted to the adsorptive removal of hazardous materials of organophosphorus pesticides (OPs), it is still highly desirable to develop novel adsorbents with high adsorption capacities. In the current work, the removal of two representative OPs, glyphosate (GP) and glufosinate (GF), was investigated by the exceptionally stable Zr-based MOFs of UiO-67. The abundant Zr-OH groups, resulting from the missing-linker induced terminal hydroxyl groups and the inherent bridging ones in Zr-O clusters of UiO-67 particles, served as natural anchorages for efficient GP and GF capture in relation with their high affinity toward phosphoric groups in OPs.

Controlled synthesis of multilayered gold nanoshells for enhanced photothermal therapy and SERS detection.

It can be streamlined: A facile and controllable approach for the fabrication of core/shell-structured multilayer gold nanoshells with uniform nanosize, monodispersity, and tunable plasmonic properties has been successfully developed by utilizing an organosilica layer as the dielectric spacer layer.

Promotion effects of SiO2 or/and Al2O3 doped CeO2/TiO2 catalysts for selective catalytic reduction of NO by NH3.

A series of the CeO2-based catalysts loaded on TiO2, TiO2-SiO2, TiO2-Al2O3, and TiO2-SiO2-Al2O3 supports were prepared by incipient impregnation method for the selective catalytic reduction (SCR) of NO by NH3 in the presence of oxygen. The SCR activities of the catalysts with different supports increases in the order of Ce/TiO2 < Ce/TiO2-20SiO2 ≈ Ce/TiO2-3.5Al2O3 < Ce/TiO2-20SiO2-3.

Inherent anchorages in UiO-66 nanoparticles for efficient capture of alendronate and its mediated release.

Zr-based MOF nanoparticles were applied as efficient carriers for alendronate delivery, and an unprecedented drug loading capacity was achieved thanks to the inherent drug anchorages of Zr-O clusters therein. The encapsulated drug featured with a pH-dependent release profile, and inhibited the growth of cancer cells more efficiently than the free drug.

Synthesis of mesoporous Beta and Sn-Beta zeolites and their catalytic performances.

Mesoporous Beta zeolite has been successfully prepared through hydrothermal synthesis in the presence of cationic ammonium-modified chitosan as the meso-template. Through a subsequent solid-gas reaction between highly dealuminated mesoporous Beta zeolite and SnCl4 steam at an elevated temperature, mesoporous Sn-Beta has been facilely obtained. It was revealed that the addition of cationic chitosan induced the nanocrystal aggregation to particle sizes of ∼300 nm, giving rise to the intercrystalline/interparticle mesoporosity.

A pH-responsive hybrid fluorescent nanoprober for real time cell labeling and endocytosis tracking.

Hydrophilic, fluorescent hybrid nanoprobes (NDI@HNPs) encapsulated with the hydrophobic pH-responsive fluorophore (N,N'-di-n-dodecyl-2,6-di(4-methyl-piperazin-1-yl)naphthalene-1,4,5,8-tetracarboxylic acid diimide, NDI) for recognizing and mapping the route of cell phagocytosis have been fabricated based on the self-assembly of amphiphilic diblock copolymer PS-b-PAA and the subsequent shell cross-linking with 3-mercaptopropyltrimethoxy silane (MPTMS). The as-synthesized NDI@HNPs has a typical spherical morphology of 46 nm in diameter with excellent monodispersity in aqueous solution. The NDI@HNPs probe exhibits extremely low cytotoxicity, fast real time pH response and enhanced fluorescence intensity under acidic environment with respect to the corresponding free dye in highly polar aqueous system because of the encapsulation of NDI molecules inside nanoparticle cores with weak polarity environment.

Sub-150 nm mesoporous silica nanoparticles with tunable pore sizes and well-ordered mesostructure for protein encapsulation.

Despite their great potentials as biomacromolecues delivery vehicles, there are few, if any, reports on mesoporous silica nanoparticles (MSNs) simultaneously integrated with the merits of large pore size, small particle diameters and well-ordered mesostructure. Here, we designed a facile strategy for the synthesis of monodispersed MSNs using cationic surfactants (CSs) as templating agents, neutral amine of N,N-dimethylhexadecylamine (DMHA) as a pore size mediator and tri-block copolymer of F127 (EO106PO70EO106) as a particle growth inhibitor/dispersant. The obtained colloidal nanoparticles exhibited a highly ordered mesostructure and tunable pore diameter up to 4.