Background Oral submucous fibrosis ( OSF ) is one of the well‐recognized oral potentially malignant disorders. In this study, we investigated transformation in a Taiwanese population. Methods A retrospective cohort study was analyzed from Taiwan's National Health Insurance Research Database. comparison randomly frequency‐matched with according to age, sex, and index year. leukoplakia OL further stratified evaluate for possible synergistic effects ‐associated transformation. Results cohort,...

The benchmark study of DFT methods on the activation energies phosphodiester C3′–O and C5′–O bond ruptures glycosidic C1′–N induced by electron attachment was performed. While conventional pure hybrid functionals provide a relatively reasonable description for rupture, they significantly underestimate energy barriers C–O ruptures. This is because transition states later reactions, which are characterized an distribution delocalized from nucleobase to sugar–phosphate backbone, suffer severe...

Thin film transistors (TFTs) with amorphous silicon films crystallized via continuous-wave green laser at a wavelength of 532 nm exhibit very different electrical characteristics in various crystallization regions, corresponding to the Gaussian energy density distribution beam. In center region subjected highest density, full melting scheme led best crystallinity polycrystalline film, resulting field-effect mobility 500 cm2 V−1 s−1. contrast, edge that resulted solid phase exhibited worst 48...

The rapid development of energy storage devices has pushed Li-ion batteries (LIBs) bear down for higher performance, better safety, lower cost, and capable to operate in wide range temperatures. However,...

The oxygen-plasma-functionalized carbon nanotube thin films on the flexible substrates as pH sensing membranes of extended-gate field-effect transistors are proposed for first time. nanotubes ultrasonically sprayed onto polyimide followed by an oxygen-plasma functionalization. Such oxygen-plasma-treated (CNTFs) exhibit superior characteristics with sensitivity 55.7 mV/pH and voltage linearity 0.9996 in a wide range 1-13. Moreover, excellent flexibility is also demonstrated CNTFs still...

Metal–organic frameworks (MOFs) are porous crystalline materials with tailorable structural versatility that were recently considered as one of the most promising alternative anode for lithium-ion batteries. Herein, we have synthesized lead-based MOFs (Pb-1,3,5-benzenetricarboxylate, Pb-BTC), which had a high efficiency and reversibe lithium storage material in The Pb-BTC based battery delivers highly reversible capacities 625 450 mA h g–1 at current densities 0.1 0.5 A g–1, respectively,...

Calcium titanium oxide has emerged as a highly promising material for optoelectronic devices, with recent studies suggesting its potential favorable thermoelectric properties. However, current experimental observations indicate low performance, significant gap between these and theoretical predictions. Therefore, this study employs combined approach of experiments simulations to thoroughly investigate the impact structural directional differences on properties two-dimensional (2D)...

Although mobile robots have achieved great success in indoor navigation, they are still facing problems like operating through multi-floor hotel buildings. In this paper, a low-cost and lightweight robot is proposed for room service. For delivering any item that customers need, the should be able to manipulate elevators an unmanned hotels. So, it separated into three parts: elevator button detection, coordinate transform fuzzy logical control robotic arm. To recognize detect variety of...

Lithium (Li) metal is regarded as one of the most promising anode materials for use in next-generation high-energy-density rechargeable batteries because its high volumetric and gravimetric specific capacity, well low reduction potential. Unfortunately, uncontrolled dendritic Li growth during cyclic charging/discharging leads to columbic efficiency critical safety issues. Hence, comprehensive understanding formation mechanism Li-dendrite growth, particularly at onset dendrite formation,...

A molecular dynamics (MD) simulation with the optimized potentials for liquid simulations-all atom (OPLS-AA) force field was carried out to investigate dynamic behaviors of organic electrolyte molecules between a graphite cathode and anode.

Cisplatin, Pt(NH3)2Cl2, is a leading chemotherapeutic agent that has been widely used for various cancers. Recent experiments show combining cisplatin and electron sources can dramatically enhance DNA damage the cell-killing rate and, therefore, promising way to overcome side effects resistance of cisplatin. However, molecular mechanisms underlying this phenomenon are not clear yet. By using density functional theory calculations, we confirm efficiently capture prehydrated electrons then...

Mesophase pitch fabricated through polymerization of polycyclic aromatic hydrocarbons (PAHs) is highly and high quality, it can be used as a raw material to produce other carbon-based materials. Hydrofluoride/boron trifluoride (HF/BF3) currently an efficient reagent catalyze the PAH mesophase pitch. In this study, density functional theory (DFT) calculations are performed propose mechanism for naphthalene catalytic using HF/BF3. The overall reaction conceptualized having two stages:...

The CO oxidation mechanism catalyzed by ultrathin helical palladium nanowires (PdNW) was investigated density functional theory (DFT) calculation. PdNW structure constructed on the basis of simulated annealing basin-hopping (SABH) method with tight-binding potential and penalty in our previous studies (J. Mater. Chem., 2012, 22, 20319). low-lying adsorption configurations as well energies for O2 molecules different sites were obtained DFT most stable Langmuir-Hinshelwood (LH) processes...

The aluminum-doped ZnO (AZO) nanostructures with different Al concentrations were synthesized on AZO/glass substrate via a simple hydrothermal growth method at temperature as low 85 degrees C. morphologies, crystallinity, optical emission properties, and chemical bonding states of AZO show evident dependence the aluminum dosage. morphologies changed from vertically aligned nanowires (NWs), NWs coexisted nanosheets (NSs), to complete NSs in respect Al-dosages 0-3 at.%, 5 7 correspondingly....

Prototropic equilibria in ionized DNA play an important role charge transport and radiation damage of and, therefore, continue to attract considerable attention. Although it is well-established that electron attachment will induce interbase proton transfer from N1 guanine (G) N3 cytosine (C), the question whether surrounding water major minor grooves can protonate one-electron-reduced G:C base pair still remains open. In this work, density functional theory (DFT) calculations were employed...

Graphite is one of the most widely used negative electrode materials for lithium ion batteries (LIBs). However, because rapid growth demands pursuing higher energy density and charging rates, comprehensive insights into intercalation plating processes are critical further boosting potential graphite electrodes. Herein, by utilizing dihedral-angle-corrected registry-dependent (DRIP) (Wen et al., Phys. Rev. B 2018, 98, 235404), Ziegler–Biersack–Littmark (ZBL) (Ziegler Biersack, Astrophysics,...

A transparent ultraviolet (UV) sensor using nanoheterojunctions (NHJs) composed of p-type NiO nanoflowers (NFs) and n-type ZnO nanowires (NWs) was prepared through a sequential low-temperature hydrothermal-growth process. The devices that were annealed in an oxygen (O2) ambient exhibited better rectification behavior (I forward/I reverse = 427), lower forward threshold voltage (V(th) 0.98 V), leakage current (1.68 x 10(-5) A/cm2), superior sensitivity uv/I dark 57.8; I visible/I 1.25) to UV...

The carbon nanotube network decorated with Pt nanoparticles (PtCNT) irradiated by excimer laser as counter electrode (CE) of dye-sensitized solar cells (DSSCs) has been systematically demonstrated. conversion efficiency would be improved from 7.12% to 9.28% respect conventional Pt-film one. It was attributed the enhanced catalytic surface and conductivity due adjoining phenomenon PtCNTs laser. Moreover, annealing could also promote interface contact between CE conductive glass. Therefore,...

Pristine polyvinylidene fluoride (PVDF) and its CNT composites (PVDF/CNT) at three weight fractions, 8 wt%, 16 wt% 24 were used to investigate the influence of fraction on mechanical properties PVDF. Molecular dynamics (MD) simulation was utilized predict PVDF/CNT composites. The tensile stress–strain profiles indicate that Young's modulus strength pristine PVDF can be significantly improved by embedded CNTs. However, these CNTs induce stress concentration within composites, resulting in...

Resist substrates used in the LIGA process must provide high initial bond strength between substrate and resist, little degradation of during x-ray exposure, acceptable undercut rates development a surface enabling good electrodeposition metals. Additionally, they should produce fluorescence radiation give small secondary doses bright regions resist at interface. To develop new satisfying all these requirements, we have investigated due to electrons fluorescence, adhesion before loss fine...