Related Geometrical Parameters Research Articles

DFT and TD-DFT studies to elucidate the configurational isomers of ferric aerobactin, ferric petrobactin, and their ferric photoproducts.

Iron-chelating siderophores such as aerobactin and petrobactin are produced by marine bacteria to sequester iron under low iron stress. Those that contain a citrate moiety undergo light-catalyzed ligand-to-metal charge transfer, inducing decarboxylation and formation of photoproducts. In this work, we employed density functional theory to obtain the optimized geometries and determine the relative energies and geometric parameters of different configurations of Fe(III)-coordinated aerobactin, petrobactin, and their photoproducts. Time-dependent density functional theory was then used to compute the UV-Vis absorption spectra of these species, and the comparison against experimental spectra further elucidated the structural configurations most likely to be adopted by these compounds. Frequency calculations provided Fe-O force constants on the same order as other siderophores. The relative energies and predicted spectra support the cis-cis C-fac configuration for ferric aerobactin and the cis-trans C-mer configuration for its photoproduct, while only mild support is found for specific configurations of the ferric petrobactin structures (meta-mer and meta-fac for the precursor, cis-cis para-fac for the photoproduct). The predicted ferric petrobactin spectra are found to be fairly insensitive to the configuration of the ferric complex.

Compressive properties and biocompatibility of additively manufactured lattice structures by using bioactive materials

Porous bioactive materials were widely used in orthopedic implant fields because of their excellent mechanical properties and porous spaces. However, most porous types are predominantly stacked in two-dimensional configurations, which significantly limits their mechanical property range and adversely affects the modulus matching between the porous implants and surrounding bone tissues. Hence, various lattice structures were prepared using 3D printing technology with bioactive materials, and characterized by mechanical and biological tests. Numerical simulations were conducted to analyze the effect of relative density and geometric parameters on the equivalent compressive properties of the lattice structures. The results showed that the lattice structure exhibited a broad elastic modulus range, which can be adjusted to align with the mechanical properties of human cortical and cancellous bones, thereby helping to mitigate stress shielding in orthopedic implants. The biocompatibility of the 3D-printed solid materials was assessed in vitro using a cell counting assay kit-8 (CCK-8). The results indicated that poly-ether-ether-ketone (PEEK), carbon fiber reinforced PEEK (CFR/PEEK), nylon, and titanium (Ti) alloy all exhibited good biocompatibility, with no significant differences observed among the four materials. This study further enhances the understanding of bioactive lattice structures in the biomedical field and offers new possibilities for orthopedic repair.

Switchable large-angle beam splitter based on a continuous metasurface in the near-infrared region

Metasurface-based beam splitters with broadband and high efficiency are highly desirable in various optical and photonic applications. In this paper, we theoretically propose a switchable equal power beam splitter with large beam splitting angle based on a continuous metasurface by integrating the vanadium dioxide (VO2). Utilizing the phase change characteristics of VO2, the beam splitter can be thermally switched between transmission and reflection modes in the near-infrared region. Moreover, the theoretical calculation value of the splitting angle matches well with the simulation result. And the conversion efficiencies of both transmission and reflection modes reach up to ∼100% in a broadband wavelength range. In addition, we discuss the influences of related geometrical parameters on the performance of beam splitter in detail. Our proposed switchable power beam splitter may have potential applications in integration and miniaturization of modern optical devices.

Design of the Microchannels Heat Sink to Augment the Thermal Performance Using Different Type of Cavity with or without Wavy Channel

The development of innovative micro sinks design stems from the urge to perform efficient cooling at a cost of low pressure drop for more miniaturized electronic equipment. The three-dimensional investigations have been carried out with disruptive structures in rectangular microchannels. Microchannel heat sinks with triangular cavity, trapezoidal cavity, wavy plane channel, wavy triangular cavity, and wavy trapezoidal cavity have been considered. The performance variations are evaluated based on the average Nusselt number, friction factor, and thermal performance within the range of Reynolds numbers from 141 to 498. The highest thermal performance is achieved by wavy trapezoidal cavity among all channels. The parametric geometrical studies have also been carried out by varying relative geometric parameters such as relative amplitude, relative cavity length, and relative cavity width. The highest heat transfer enhancement equal to 2.33, for the same channel has been achieved with the combination of relative amplitude; relative cavity length and relative cavity width is equal to 0.75, 0.055, and 0.75, respectively at Reynolds number equal to 498. The wavy shapes give better mixing by creating of additional vortices or dean vortices to increase heat transfer with minimum pressure drop.

Theoretical and experimental investigations on 5,12-di(methyl)-quinacridin-ylidene)-7,14-di(rhodanineimine) for optoelectronic applications

In searching for novel organic semiconductors, 5,12-di(methyl)-quinacridin-ylidene)-7,14-di(rhodanineimine) (DQAR) is designed and chemically synthesized by using condensation reaction. The molecular structure of DQAR is supported with spectral measurements. Electronic and geometrical properties of DQAR are investigated be means of combined computational and experimental analyses. Density function theory (DFT/B3LYP) utilizing 6-311G(d,p) basis set are used to optimize DQAR molecular structure and its related geometrical parameters. The intermolecular interactions are calculated using reduced density gradient (RDG) planes. The highest occupied and lowest unoccupied molecular orbitals (HOMO and LUMO) of DQAR are experimentally estimated by using the optical absorbance and cyclic voltammetry techniques. DQAR is used as a third component in the active layer of bulk heterojunction (BHJ) solar cells. The BHJ solar cells based on P3HT:DQAR:PC61BM (P3HT = poly(3-hexylthiophene and PC61BM = [6,6]-phenyl-C61-butyric acid methyl ester) active layers are found to be to be better that those based on only P3HT:PC61BM mainly due to the contribution of DQAR to the photocurrent. The obtained results are analyzed in terms of the computational and experimental data. Our initial results indicate that DQAR can be used in BHJ solar cells fabrications.

Optimizations of Double Titanium Nitride Thermo-Optic Phase-Shifter Heaters Using SOI Technology.

A commercial thermo-optic phase shifter (TOPS) is an efficient solution to the imbalance problem in the fabrication process of Mach-Zehnder modulator (MZM) arms. The TOPS consumes electrical power and transforms it into thermal energy, which changes the real part of the effective refractive index at the waveguide and adjusts the MZM transfer function to work in the linear region. The common model being used today is constructed with only one heater; however, this solution requires more electrical power, which can increase the transmitter system cost. To reduce the system energy cost, we propose a pioneering optimal double titanium nitride heater model under forward biasing at 1550 nm wavelength using the standard silicon-on-insulator technology. Numerical investigations were carried out on the key relative geometrical parameters, heat distribution at the silicon layer, thermal crosstalk, and laser wavelength drift. Results show that the optimal TOPS design can function with a low electrical power of 19.1 mW to achieve a π-phase shift, with a low thermal crosstalk of 0.404 and very low optical losses over 1 mm length. Thus, the proposed device can be used for improving the imbalance problem in MZMs with low electrical power consumption and low losses. This functionality can be utilized to obtain better performances in transmitter systems for data centers and long-range optical communication system applications.

Fracture model of meso-ceramics based on relative size and prediction of fracture toughness and bending strength

Based on grain size effect of ceramics and boundary effect model, the concept of relative size is introduced. In addition, meso-fracture model of ceramics with different relative sizes is established. Experimental data of nine ceramic materials with different relative sizes are statistically analyzed. It is found that fictitious crack growth length Δafic is k (W − a0) (where k is a constant, W is the specimen depth, and a0 is the initial crack length). Furthermore, k value is 0.02 when relative size is less than 200, while it is 0.2 when relative size is in the range from 200 to 1500. Fracture parameter values determined by considering relative size are basically consistent with fracture parameter values reported in the literature. Combined with normal distribution, full fracture failure curves of ceramics with different relative sizes are constructed. No brittle failure controlled by fracture toughness occurs in ceramic specimens with relative size less than 200, while brittle failure controlled by fracture toughness occurs in ceramic specimens with relative size ranging from 200 to 1500. Main reasons for the occurrence of brittle failure controlled by fracture toughness are that with increasing relative size, grain size is reduced, the number of grain boundaries increases, crack growth length increases gradually, and the interaction between fracture process zone of ceramics and the boundary of specimens becomes stronger. At the same time, an expression for predicting the peak load Pmax of ceramics with relative size (W–a0)/dav≤1500 is established. It is found that peak load can be predicted based on relative size and geometric parameters of ceramics, which is of great significance for conveniently and accurately obtaining fracture parameters of ceramics.

A new hybrid structure based Pyranoquinoline-Pyridine derivative: Synthesis, optical properties, theoretical analysis, and photodiode applications

The novel 6-ethyl-3-{[(3-cyano-4,6-dimethyl-2-oxo-1,2-dihydropyridin-1-yl)imino] methyl}-4H-pyrano[3,2-c]quinoline-4,5(6H)‑dione (EPIMPQ) was obtained by reacting pyrano[3,2-c]quinoline-3-carboxaldehyde (1) with 1-amino-4,6-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (2). For the first time, the EPIMPQ thin films were produced using simple, easy, and efficient thermal evaporation under a vacuum. Based on its correct elemental analysis and spectrum data, the structure of EPIMPQ was inferred using FTIR, 1H NMR, 13C NMR, and mass spectra. Density Functional Theory (DFT/B3LYP) methods using the 6–311++G(d,p) basis set were used to achieve the optimized molecular structure and the related geometrical parameters. The molecular electrostatic potential (MEP), chemical activity characteristics, and non-linear optical (NLO) properties have also been investigated. Optical spectroscopy was used to determine the optical band gap and other dispersion parameters of the films, which was vital in the development of photodiode devices. The optical band transitions of EPIMPQ were investigated, and the direct optical gap was determined to be 2.75 eV and 3.06 eV. Furthermore, the current-voltage (J-V) characteristics of EPIMPQ film-based devices under the illumination of 80 mW/cm2 show that as the reverse bias is increased, the photoresponsivity of EPIMPQ film-based devices increases. The attractive phototransient features of the produced devices show that they can be employed as photodiode devices.

Crash Frequency Minimization with Severity Mitigation in Road Geometric Design Using Chance Constraint Programming Optimization

Crash frequency and crash severity are two major aspects of transportation safety. In this paper, we propose a decision-making scheme combining statistical analysis and optimization modeling to be used in transportation safety study. We conduct a safety analysis, a travel speed analysis, and an optimization analysis to develop a two-stage decision scheme to minimize crash frequency while mitigating crash severity, using data collected in urban environments in Lincoln, Nebraska. In the safety analysis and the travel speed analysis, we study the impact of lane width and other related road geometric design parameters on annual crash frequency and vehicle travel speed using count models and linear regression models, respectively. In the optimization analysis, the proposed two-stage stochastic programming model determines the lane width and other road geometric design parameters in the first stage, and then the posted road speed limit in the second stage for each scenario. To mitigate crash severity, we use a chance constraint to restrict a certain percentile of the vehicle travel speed to comply with the posted road speed limit. This two-stage decision scheme is shown to be effective for the data collected in Lincoln, Nebraska, when restricting the vehicle travel speed of up to two positive standard deviations from the mean travel speed to be under the posted speed limit. The application of a stochastic programming model that utilizes regression analysis results serves as an innovative decision scheme that effectively connects statistical analysis and optimization studies in road geometric design for transportation safety. Its objective is to minimize crash frequency while simultaneously mitigating crash severity. This methodology has extensive potential for application in various environments to assist in the reduction of both crash frequency and crash severity.

Variable nozzle turbocharger: gas-dynamic calculation, 3D modeling, CFD analysis, characteristics

Introduction (problem statement and relevance). The environmental requirements for vehicle engines becoming more stringent require development and introduction of high-performance turbo chargers. Transition from external to internal varying, namely to the variable nozzles of the turbine, is caused by the necessity to reduce the transient process time during operation of the engine and the vehicle itself.The purpose of the study is development and confi rmation of the methodology (general strategy) for designing and modernization of radial-axial turbines with variable nozzles.Methodology and research methods. The study used the combination of calculation models for the engine itself with preliminary verifi cation based on the results of tests on the engine test bench (AVL BOOST, CRUISE M), gas-dynamic calculation of the turbine stage with determination of geometric parameters of the blade ring, housing (volute) and blade drive mechanism, their geometric modeling (Siemens NX) followed by 3D models export, CFD simulation of the stage fl ow including taking into account the transfer element (with impeller rotation) and generation of the stage curves (AVL FIRE).Scientific novelty and results. Combination (synthesis) of calculation models of different levels makes it possible to determine geometric parameters of the turbocharger turbine with variable nozzles providing high effi ciency (performance factor) of the turbine stage with a simultaneous shift of the maximum torque mode of the engine itself to the area of lower crankshaft rotation rate (along the full-load curve).Practical signifi cance of the paper consists in reduction of the time of design and subsequent refi nement (experimental) works during creation and modernization of turbines with variable nozzles of small-sized turbochargers. The obtained values of relative geometric parameters can be used at the design stage

A novel numerical study on the melting process of phase change materials in a heat exchanger for energy storage

In this article, a new model with a different geometry is presented for application in systems of energy storage that contain phase change materials (PCMs). The main innovation of this research is designing two tubes instead of one tube inside the heat exchanger and investigation of its impact on the melting process of the PCM. Also, the influence of extended surfaces is studied to evaluate the reduction of melting time, and the changes of related geometrical parameters, including the number and length of fins, are examined in detail. The finite volume commercial code has been employed for numerical simulation and the obtained outcomes have very good agreement with a published experimental study. Results indicate that the utilizing of two tubes and reduce the distance between these tubes has a considerable influence on energy storage and reduction of melting time. Further, it can be concluded that for a certain number of fins, the melting time of PCM reduces by enhancing the fin length.

Study of the influence of technological parameters on the mechanics of shaping of billets using roll stamping processes

The article presents the results of development and research of technological schemes of planting flanges on tubular (ring) workpieces by stamping by rolling cylindrical and conical rolls. It is shown that the achievement of significant dimensions of the various elements of the workpiece is possible by providing a directed flow of metal by changing the relative position of the roll and the workpiece. Planting of external flanges is one of the most effective operations of stamping by rolling, as it allows you to form a wide range of products with advanced geometric elements. To assess the technological capabilities of the flange landing operation, the most dangerous from the destruction positions of the workpiece zone was identified and the analysis of the stress strain state of the material using the method of grids, hardness measurement and microstructural analysis. According to the results of the research, the ways of deformation of the particles of the material of the peripheral surface of the flange in the coordinates "intensity of deformations - an indicator of the stress state" are schematically constructed. These deformation paths are given against the background of curves of ultimate deformations of steels, which are built on the results of uniaxial compression and torsion of cylindrical specimens and using tested approximations. A mathematical model of deformation trajectories is constructed, for which a one-parameter function is taken as a basis, which is "glued" from the elementary function of the sine and tangent to it at some point in the line. To determine the used plasticity resource, a damage summation model with a power approximation of the damage function was adopted. As a result, we have for the first time described the general expression of the linear damage summation model for the case of the parametric deformation path problem. The graphical representation on the constructed model of accumulation of damages in material of a dangerous zone of a flange at landing by a method of rolling stamping (SHO) is resulted. Based on the constructed model, it is possible to model the accumulation of damage by changing the values of the model parameters for different materials and deformation paths, which, in turn, depend on the relative geometric parameters of the workpiece and its location relative to the rolling roll.

Influence of cross-section shape on energy harvesting from transverse flow-induced vibrations of bluff bodies

Hydroelastic experiments have been carried out in a free surface water channel to study the influence of the cross-section shape on the mechanical energy transfer from a uniform flow to a self-excited crossflow oscillating prism. Seventeen cross-section shapes were tested with the same mechanical properties (say, mass ratio and mechanical damping) and aspect ratio. Then, the study was focused on the role of the cross-section shape and reduced velocity on the prism dynamics and energy transfer from the fluid flow. It has been found that the geometric centroid of the semi-cross-section and the afterbody length of the cross-section represent a simple and effective metric to characterise the energy transfer. Two related dimensionless geometric parameters are introduced. The dependence of the energy transfer with these two parameters is studied and used to design successfully ‘in advance’ cross-section shapes with high energy transfer efficiencies. It has been observed from particle image velocimetry measurements that large energy transfer shapes are those in which, under strong oscillations, the flow follows the cross-section contour of one side and is fully detached on the other side.

Comparative Studies of Experimental and Simulated IR Spectra of Some Selected Flavonoid Compounds

Flavonoid compounds are a class of poly-phenolic secondary metabolites usually found in various plants. These compounds were of interest in the study of various workers in the past because of their utility as medicinal compounds. These compounds can be extracted from plants and workers have tried to synthesize them also. A lot of references related to the studies of these compounds are available in the literature to explore their structural and other related properties. This communication reports the studies on experimental and simulated IR spectra of some selected Flavonoid compounds based on quantum-chemical semi-empirical methods using different AM1 and PM3 approaches. Other related geometrical parameters obtained after optimizations are also reported. It has also been tried to study and include parameters related to the FMO approach theoretically for these compounds.

Numerical study to evaluate characteristics of an embedded SHM sensor to prevent rebar corrosion in concrete using magnetic flux density

Rebars corrosion is the main durability threat of Reinforced Concrete (RC) structures that reduce the service life, in marine environment. The chloride ions penetration to RC, can accelerate the corrosion process which increase RC structures collapsing risk. Therefore, regular health monitoring inspections is necessary to evaluate chlorides ingress, before they reach rebars. Many None Destructive Techniques (NDT), such as Electrochemical or Electromagnetic (EM) Methods, have been developed to detect rebar’s corrosion. However, most of them are not able to precisely determine the chlorides transfer mechanism or their results suffer from uncertainty and cannot distinguish chloride ions from other environmental factors changing. Under framework of ANR French project LabCom OHMIGOD, we want to propose a novel Structural Health Monitoring (SHM) sensor for detection of chlorides penetration front in cover concrete, as preventive ND method. The sensor is made of magnetic and ferromagnetic materials that are sensitive to chloride ions and could generate magnetic flux density (B), as output signature. By embedding sensor in cover concrete, exposed to chlorides penetration, corrosion could emerge on the sensor’s reactive part. Thereby, its geometrical properties and consequently, its output signature would be affected, too. By using an external interrogator, it would be possible to obtain variation of B, in function of corrosion evolution on sensor, as ND observable. In order to evaluate the sensor’s characteristics, we present a sensor’s numerical model and thereby, the related efficient geometrical parameters (surface and thickness) and also the location in concrete, are investigated. We used the Finite Element Method (FEM) for numerical modeling of the sensor. The simulation results show that the variation range of B, up to 70% is achieved for the reactive part geometry of 25 mm × 25 mm × 0.8 mm, in depth’s range of 1 cm up to 3 cm from concert’s surface.

EVALUATION OF DEFORMABILITY OF MATERIAL DURING PLANTING OF ELEMENTS OF PREPARATIONS BY ROLLING STAMPING METHOD

The article presents the results of development and research of technological schemes of planting flanges on tubular (ring) workpieces by stamping by rolling cylindrical and conical rolls. It is shown that the achievement of significant dimensions of the various elements of the workpiece is possible by providing a directed flow of metal by changing the relative position of the roll and the workpiece. Planting of external flanges is one of the most effective operations of stamping by rolling, as it allows you to form a wide range of products with advanced geometric elements. To assess the technological capabilities of the flange landing operation, the most dangerous from the destruction positions of the workpiece zone was identified and the analysis of the stress-strain state of the material using the method of grids, hardness measurement and microstructural analysis. According to the results of the research, the ways of deformation of the particles of the material of the peripheral surface of the flange in the coordinates "intensity of deformations - an indicator of the stress state" are schematically constructed. These deformation paths are given against the background of curves of ultimate deformations of steels, which are built on the results of uniaxial compression and torsion of cylindrical specimens and using tested approximations. A mathematical model of deformation trajectories is constructed, for which a one-parameter function is taken as a basis, which is "glued" from the elementary function of the sine and tangent to it at some point in the line. To determine the used plasticity resource, a damage summation model with a power approximation of the damage function was adopted. As a result, we have for the first time described the general expression of the linear damage summation model for the case of the parametric deformation path problem. The graphical representation on the constructed model of accumulation of damages in material of a dangerous zone of a flange at landing by a method of SHO is resulted. Based on the constructed model, it is possible to model the accumulation of damage by changing the values of the model parameters for different materials and deformation paths, which, in turn, depend on the relative geometric parameters of the workpiece and its location relative to the rolling roll.

Fully-Automated On-Chip Multi-Cell Arraying With Deterministic Quantities

Microfluidic devices for cell immobilization have significantly advanced the biological analysis at the single-cell level. However, the previous research on immobilization of multiple single cells, especially with deterministic quantities, is insufficient. In this paper, we proposed a novel microfluidic device based on the passive hydrodynamics and the uniform geometric design principle, which can array different numbers of cells in every capture cavity. The capture cavities could be stretched to accommodate more cells, and the trapping force was adjusted by modifying the related geometric parameters of the inside channel. The whole procedure was monitored and further automatized by integrating computer vision technology under a microscope. On the proposed integrated on-chip platform, we realized full-automated arraying of a single cell, two cells, and three cells on a single chip, achieving success rates up to 95%, 75%, and 72%, respectively. As a primary experimental demonstration, the cell viability test of arraying multiple cells with different quantities showed excellent biocompatibility and no significant association between trapping quantity and cell survivability. We envision that the proposed quantity-controllable, high-efficiency microfluidic devices for multiple cell arraying could be a powerful platform for an in-depth study of cell heterogeneity and cell communication between multiple cells.

DETERMINATION OF THE DYNAMIC LOAD CAPACITY OF ROLLING BEARINGS BASED ON THE RATED TORQUE OF THE ELECTRIC MACHINE

The purpose of the article is to describe the method of calculating the dynamic load capacity of the most loaded bearing of an electric machine at the stage of electromagnetic calculation. The proposed method allows to initially determine the dimensions of such parts of an electric machine as bearings and bearing shields. The article considers the calculation of electromagnetic and mechanical parameters of an electric machine on the basis of the machine constant. The transition from the machine constant to the mechanical parameters of the bearing is carried out through the plot of radial loads (reactions) acting on the bearings. The dependences of the length of the shaft end on the permissible torque of the electric machine in accordance with GOST are given for different types of load, different strength and hardness of the shaft material. This technique connects the mechanical and electromagnetic parameters of the machine, allows to perform elements of mechanical calculation at the early stages of development. To simplify the calculation method, some relative geometric parameters are introduced, depending on the type and series or model of the electric machine. The load capacity of the most loaded bearing of the magneto-electric motor 11DVM160 for driving oil pumping machines is calculated. The initial data for the calculation were information from the design documentation, the results of computer modeling of the magnetic field, as well as test results. As a result of the calculation, the value of the dynamic load capacity of the most loaded bearing corresponding to the calculated mechanical load is obtained. In practice, the inverse problem may be relevant – determining the electromagnetic moment and power of the designed electric machine according to the bearing parameters limited by the specified initial dimensions of the machine.

Transferable Neural Network Potential Energy Surfaces for Closed-Shell Organic Molecules: Extension to Ions.

Transferable high dimensional neural network potentials (HDNNPs) have shown great promise as an avenue to increase the accuracy and domain of applicability of existing atomistic force fields for organic systems relevant to life science. We have previously reported such a potential (Schrödinger-ANI) that has broad coverage of druglike molecules. We extend that work here to cover ionic and zwitterionic druglike molecules expected to be relevant to drug discovery research activities. We report a novel HDNNP architecture, which we call QRNN, that predicts atomic charges and uses these charges as descriptors in an energy model that delivers conformational energies within chemical accuracy when measured against the reference theory it is trained to. Further, we find that delta learning based on a semiempirical level of theory approximately halves the errors. We test the models on torsion energy profiles, relative conformational energies, geometric parameters, and relative tautomer errors.

Near-infrared plasmonic sensing and digital metasurface via double Fano resonances.

Plasmonic sensing that enables the detection of minute events, when the incident light field interacts with the nanostructure interface, has been widely applied to optical and biological detection. Implementation of the controllable plasmonic double Fano resonances (DFRs) offers a flexible and efficient way for plasmonic sensing. However, plasmonic sensing and digital metasurface induced by tailorable plasmonic DFRs require further study. In this work, we numerically and theoretically investigate the near-infrared plasmonic DFRs for plasmonic sensing and digital metasurface in a hybrid metasurface with concentric ϕ-shaped-hole and circular-ring-aperture unit cells. We show that a plasmonic Fano resonance, resulting from the interaction between a narrow and a wide effective dipolar modes, can be realized in the ϕ-shaped hybrid metasurface. In particular, we demonstrate that the tailoring plasmonic DFRs with distinct mechanisms of actions can be accomplished in three different ϕ-shaped hybrid metasurfaces. Moreover, the resonance mode-broadening and mode-shifting plasmonic sensing can be fulfilled by modulating the polarization orientation and the related geometric parameters of the unit cells in the near-infrared waveband, respectively. In addition, the plasmonic switch with a high ON/OFF ratio can not only be achieved but also be exploited to establish a single-bit digital metasurface, even empower to implement two- and three-bit digital metasurface characterized by the plasmonic DFRs in the telecom L-band. Our results offer a new perspective toward realizing polarization-sensitive optical sensing, passive optical switches, and programmable metasurface devices, which also broaden the landscape of subwavelength nanostructures for biosensors and optical communications.