A Resonance-Sensitive Ultralow-Frequency Raman Mode in Twisted Bilayer Graphene.

Twisted bilayer graphene (tBLG) possesses intriguing physical properties including unconventional superconductivity, enhanced light-matter interaction due to the formation of van Hove singularities (vHS), and a divergence of density of states in the electronic band structures. The vHS energy band gap provides optical resonant transition channels that can be tuned by the twist angle and interlayer coupling. Raman spectroscopy provides rich information on the vHS structure of tBLG.

Epitaxial Strain Enhanced Ferroelectric Polarization toward a Giant Tunneling Electroresistance.

A substantial ferroelectric polarization is the key for designing high-performance ferroelectric nonvolatile memories. As a promising candidate system, the BaTiO/LaSrMnO (BTO/LSMO) ferroelectric/ferromagnetic heterostructure has attracted a lot of attention thanks to the merits of high Curie temperature, large spin polarization, and low ferroelectric coercivity. Nevertheless, the BTO/LSMO heterostructure suffers from a moderate FE polarization, primarily due to the quick film-thickness-driven strain relaxation.

Deep-Ultraviolet and Helicity-Dependent Raman Spectroscopy for Carbon Nanotubes and 2D Materials.

Recent progress of Raman spectroscopy on carbon nanotubes and 2D materials is reviewed as a topical review. The Raman tensor with complex values is related to the chiral 1D/2D materials without mirror symmetry for the mirror in the propagating direction of light, such as chiral carbon nanotube and black phosphorus. The phenomenon of complex Raman tensor is observed by the asymmetric polar plot of helicity-dependent Raman spectroscopy using incident circularly-polarized lights.

Reduced glutathione and raffinose lengthens postharvest storage of cassava root tubers by improving antioxidant capacity and antibiosis.

Cassava is an ideal food security crop in marginal and drought environment. However, the post-harvest storage of cassava is urgent problem to be resolved. In this study, the storage tolerant and non-tolerant cassava were screened by measuring the change of Peroxidase (POD), Superoxide dismutase (SOD), Catalase (CAT) and Malondialdehyde (MDA) in seven cultivars of cassava.

Quantum interference directed chiral raman scattering in two-dimensional enantiomers.

Raman scattering spectroscopy has been a necessary and accurate tool not only for characterizing lattice structure, but also for probing electron-photon and electron-phonon interactions. In the quantum picture, electrons at ground states can be excited to intermediate energy levels by photons at different k-points in the Brillouin zone, then couple to phonons and emit photons with changed energies. The elementary Raman processes via all possible pathways can interfere with each other, giving rise to intriguing scattering effects.

Two-Dimensional Room-Temperature Magnetic Nonstoichiometric FeSe Nanocrystals: Controllable Synthesis and Magnetic Behavior.

Two-dimensional (2D) magnetic materials have attracted significant attention for promising applications in energy-saving logic and robust memory devices. However, most 2D magnets discovered so far typically feature drawbacks for practical applications due to low critical temperatures. Herein, we synthesize ultrathin room-temperature (RT) magnetic FeSe nanoflakes via the space-confined chemical vapor deposition method.

[Development of Intelligent Management System for High Value Consumable Material in Operating Room].

Operation room is the most important link for carrying out medical activities in hospital whose demand for medical consumable material is also very large. With the increase of types of consumable material, the process of consumable material management in operating room becomes more complicated, and the traditional management mode can not meet the needs. In this paper, the technology of Internet of things and artificial intelligence is used to design an intelligent management system of high value consumable material in operating room which improves the efficiency of operation of high value consumable material in operating room, reduces the cost of manpower and improves the safety.

Molten-Salt-Assisted Chemical Vapor Deposition Process for Substitutional Doping of Monolayer MoS and Effectively Altering the Electronic Structure and Phononic Properties.

Substitutional doping of layered transition metal dichalcogenides (TMDs) has been proved to be an effective route to alter their intrinsic properties and achieve tunable bandgap, electrical conductivity and magnetism, thus greatly broadening their applications. However, achieving valid substitutional doping of TMDs remains a great challenge to date. Herein, a distinctive molten-salt-assisted chemical vapor deposition (MACVD) method is developed to match the volatilization of the dopants perfectly with the growth process of monolayer MoS, realizing the substitutional doping of transition metal Fe, Co, and Mn.

[Development of Hospital Medical Instrumentation Management System Based on Cloud Computing].

In order to improve the efficiency of medical instrumentation management in hospital, reduce the management cost and save the human cost, this study analyzes the problems in the traditional hospital medical instrumentation management system, and develops a new system based on cloud computing. Through the characters of the SaaS Service Platform, the system improves the flow efficiency of the medical instrumentation in hospital, saves deployment and operating system costs, and improves the people's work efficiency.

Gate tunable giant anisotropic resistance in ultra-thin GaTe.

Anisotropy in crystals arises from different lattice periodicity along different crystallographic directions, and is usually more pronounced in two dimensional (2D) materials. Indeed, in the emerging 2D materials, electrical anisotropy has been one of the recent research focuses. However, key understandings of the in-plane anisotropic resistance in low-symmetry 2D materials, as well as demonstrations of model devices taking advantage of it, have proven difficult.

Electric-field control of magnetism in a few-layered van der Waals ferromagnetic semiconductor.

Manipulating a quantum state via electrostatic gating has been of great importance for many model systems in nanoelectronics. Until now, however, controlling the electron spins or, more specifically, the magnetism of a system by electric-field tuning has proven challenging. Recently, atomically thin magnetic semiconductors have attracted significant attention due to their emerging new physical phenomena.

[Research and Implementation of Vital Signs Monitoring System Based on Cloud Platform].

Through analyzing the existing problems in the current mode, the vital signs monitoring information system based on cloud platform is designed and developed. The system's aim is to assist nurse carry out vital signs nursing work effectively and accurately. The system collects, uploads and analyzes patient's vital signs data by PDA which connecting medical inspection equipments.

MiR-340 suppresses cell migration and invasion by targeting MYO10 in breast cancer.

Breast cancer is one of the most common malignant tumors among females, and can seriously affect the physical and mental health and even threaten the lives of women. Recently, research has demonstrated that microRNAs (miRNAs), as a new method of regulation, have been shown to have oncogenic and tumor‑suppressive functions in human breast cancer. Detection of their expression may lead to the identification of novel markers for breast cancer.

Calcium alginate film used for guided bone regeneration in mandible defects in a rabbit model.

The objective of this research was to study a new bioabsorbable membrane material, calcium alginate film (CAF), used for guided tissue regeneration (GTR) or guided bone regeneration (GBRL). Circular bone defects of five mm diameter were created in the corners of the mandibles in 45 rabbits. The defects covered with calcium alginate film (CAF) served as the experimental sites, and collagen membrane (CM) or no membrane served as the control sites without considering left or right side, just with a mark on the ear of the same side.

Haversian remodeling in guided bone regeneration with calcium alginate film in circular bone defect model of rabbit.

The objective of this study is to investigate the effect of bioabsorbable Calcium alginate film in guided bone regeneration by the study of Haversian remodeling. Circular bone defects of 5 mm diameter were created in the corners of mandibles in 35 rabbits. The defects were covered with calcium alginate film (CAF) served as the experimental group, or collagen membrane (CM) as the control group, respectively.

Deep lingual arterial chemoembolization of tongue carcinoma with microcapsuled anticancer drug.

Objective: Microcapsule chemoembolism is a promising treatment of tumors. We describe a deep lingual arterial embolization of tongue carcinoma with microcapsuled carboplatinum.

Methods: Lingual artery cast specimens from cadavers were microscopically examined, and 78 patients with tongue cancer were recruited and treated with the deep lingual arterial embolization therapy.

[The application of three dimensional craniomaxillofacial model in the restoration of mandibular bone defects with vascularized fibular autograft].

Objective: To evaluate the effect of applying the three dimensional craniomaxillofacial model technique in the restoration of mandibular defects with vascularized fibular autograft.

Methods: Three dimensional craniomaxillofacial models of 24 patients with mandibular defects were achieved by CT scan and rapid prototype technique. Surgery simulation and individual prefabricated titanium board were designed on the models.

Anatomical and clinical study of lingual arterial chemoembolization for tongue carcinoma.

Objective: The aim of this study was to develop an alternative treatment approach using lingual artery chemoembolization for certain tongue carcinomas.

Study Design: Fifty-three lingual artery, postmortem, cast human specimens were studied. Seventy-eight patients with tongue carcinoma were chemoembolized with Car-platinum microcapsules.

Application of a new bioresorbable film to guided bone regeneration in tibia defect model of the rabbits.

Aim is to study the effect of calcium alginate film (CAF) on guided bone regeneration (GBR). Circular bone defects with 5 mm diameter were created in both tibias in 60 rabbits. The defects covered with CAF served as the experimental site, and with collagen membrane (CM) or with no membrane both served as the control site.

[The effect of artificial bone implantation in cleft palate on the development of maxilla].

Objective: To research the influence of palate bone implantation to the growth of maxilla in three dimensional direction.

Methods: 40 patients of congenital cleft palate type II with palate board damage were stochastically divide into the comparison group and bone planted group. In bone planted group, HA-Bone cement was used to repair palate tabular damage.

Sequential-release of anticancer drugs microcapsulated with ethylcellulose.

Objective: To approach the sequential release of antitumor drugs and promote the effect of chemotherapy.

Methods: Adriamycin (ADM) and carboplatin (CBP) were respectively microcapsulated with ethylcellulose by organic phase separation. The morphology and sizes of the microcapsules were observed and measured with light microscope and scanning electromicroscope.

Comparison of calcium alginate film with collagen membrane for guided bone regeneration in mandibular defects in rabbits.

Purpose: We sought to compare calcium alginate film (CAF) with collagen membrane (CM) regarding their effects on guided bone regeneration.

Materials And Methods: Circular bone defects with 5-mm diameter were created in the region anterior to both mandibular angles in 34 rabbits. The defects on one side were covered with a CAF, and the contralateral side with CM.