Motivated by the early works on bidirectional interaction and the breakthrough to estimate seismic response to bidirectional shaking via unidirectional analysis,it is essential to answer the question:When is the inter...
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Motivated by the early works on bidirectional interaction and the breakthrough to estimate seismic response to bidirectional shaking via unidirectional analysis,it is essential to answer the question:When is the interaction effect significant?Early works concluded that the effect of interaction is pronounced for stiff systems;consequently,the straightforward method for estimating seismic response to bidirectional excitation by using unidirectional analyses is verified primarily for short period ***,it is essential to identify the domain of significance for bidirectional interaction before adopting this simple methodology in *** parametrically defined systems with elastoplastic and degrading hysteresis models are studied under near-fault motions,assuming strength-independent and strength-dependent *** force-based and displacement-based analyses,conducted in parallel,reveal that the interaction effect is considerable for stiff systems,especially with degrading characteristics in a relatively low inelasticity ***,the bidirectional effect may be significant even for highly flexible systems,especially for residual deformation,which in earlier works was *** range of significance depends on the hysteresis model,system parameters,and response *** analysis is carried out with the results of the case studies,and the derived regression models may be used for a preliminary assessment of the impact of interaction in advance.
In this work, nickel ferrite (NiFe2O4) nanoparticles and a porous silicon (PSi) layer were prepared to fabricate NiFe2O4 NPs/PSi heterojunctions. The NiFe2O4 nanoparticles were embedded within the pores of the PS...
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In this paper,the dispersion,attenuation,and bandgap characteristics of in-plane coupled Bloch waves in one-dimensional piezoelectric semiconductor(PSC)phononic crystals are investigated,emphasizing the influence of p...
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In this paper,the dispersion,attenuation,and bandgap characteristics of in-plane coupled Bloch waves in one-dimensional piezoelectric semiconductor(PSC)phononic crystals are investigated,emphasizing the influence of positive-negative(PN)*** piezoelectric phononic crystals,the coupled Bloch waves in PSC phononic crystals are attenuated due to their semiconductor properties,and thus the solution of Bloch waves becomes more *** transfer matrix of the phononic crystal unit cell is obtained using the state transfer *** applying the Bloch theorem for periodic structures,the dispersion relation of the coupled Bloch waves is derived,and the dispersion,attenuation,and bandgap are obtained in the complex wave number *** is found that the influence of the PN junction cannot be ***,the effects of the PN junction under different apparent wave numbers and steady-state carrier concentrations are *** indicates the feasibility of adjusting the propagation characteristics of Bloch waves through the regulation of the PN heterojunction.
A preceding pathology named atherosclerosis, the most common cardiovascular disease (CVD) involves several hemodynamic factors affecting the arterial wall endothelium cells with increasing morbidity. The fluid-structu...
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The growing demand for flexible,lightweight,and highly processable electronic devices makes high-functionality conducting polymers such as poly(3,4-ethylene dioxythiophene):polystyrene sulfonate(PEDOT:PSS) an attracti...
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The growing demand for flexible,lightweight,and highly processable electronic devices makes high-functionality conducting polymers such as poly(3,4-ethylene dioxythiophene):polystyrene sulfonate(PEDOT:PSS) an attractive alternative to conventional inorganic materials for various applications including ***,considerable improvements are necessary to make conducting polymers a commercially viable choice for thermoelectric *** study explores nanopatterning as an effective and unique strategy for enhancing polymer functionality to optimize thermoelectric parameters,such as electrical conductivity,Seebeck coefficient,and thermal *** nanopatterning into thermoelectric polymers is challenging due to intricate technical hurdles and the necessity for individually manipulating the interdependent thermoelectric ***,array nanopatterns with different pattern spacings are imposed on free-standing PEDOT:PSS films using direct electron beam irradiation,thereby achieving selective control of electrical and thermal transport in PEDOT:*** beam irradiation transformed PEDOT:PSS from a highly ordered quinoid to an amorphous benzoid *** pattern spacing resulted in a remarkable 70% reduction in thermal conductivity and a 60% increase in thermoelectric figure of merit compared to non-patterned PEDOT:*** proposed nanopatterning methodology demonstrates a skillful approach to precisely manipulate the thermoelectric parameters,thereby improving the thermoelectric performance of conducting polymers,and promising utilization in cutting-edge electronic applications.
Dual-wavelength rectangular and step-like soliton complexes, mixed with single solitons and soliton molecules, as well as a coexistence of soliton bundles and soliton rains, were observed in a mode-locked figure-of-ei...
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In the current work, three adsorbent materials were developed: biochar derived from date palm fiber (C), date palm fiber biochar/chitosan nanoparticles (CCS), and biochar/chitosan nanoparticle composite supplemented w...
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In the current work, three adsorbent materials were developed: biochar derived from date palm fiber (C), date palm fiber biochar/chitosan nanoparticles (CCS), and biochar/chitosan nanoparticle composite supplemented with glutamine (CCSG). These compounds were used as solid adsorbents to remove As5+ from polluted water. Several characterization approaches were used to investigate all the synthesized solid adsorbents, including thermogravimetric analysis, N2 adsorption/desorption isotherm, scanning electron microscopy, transmission electron microscopy (TEM), attenuated total reflectance with Fourier transform infrared, and zeta potential. Date palm fiber biochar/chitosan/glutamine nanocomposite (CCSG) demonstrated good thermal stability, with a maximum specific surface area of 518.69 m2/g, a mesoporous size of 2.06 nm, total pore volume of 0.25 cm3/g, TEM average particle size of 38 nm, and pHPZC of 6.9. Contact time (5–60 min), pH (1–9), starting As5+ concentration (50–500 mg/L), adsorbent dose (0.1–2.0 g/L), temperature (27–45 °C), and ionic strength (0.05–0.40 mol/L) were among the sorption parameters that were investigated in order to improve the adsorption conditions. It is observed that the modified samples were effectively able to remove As5+ (CCS;256.0 and CCSG;376.0 mg/g) than unmodified ones (C;150.5 mg/g). The As5+ removal procedure corresponded well with Langmuir isotherm model. Thermodynamic and kinetic experiments show that the Elovich, pseudo-first order, and Van’t Hoff plot with endothermic, spontaneous, and physisorption nature are the best fitted models. EDTA has the highest desorption efficiency percentage (98.8%). CCSG demonstrated enhanced reusability after six application cycles of As5+ adsorption/desorption, with only a 4% decrease in the efficiency of adsorption. This work shows that adding glutamine to the DPF biochar/chitosan composite reinforces it, resulting in the fabrication of a solid adsorbent that shows promise for use in water remedia
Ohmic contacts are fundamental components in semiconductor technology,facilitating efficient electrical connection and excellent device *** employ first-principles calculations to show that semimetallic graphene is a ...
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Ohmic contacts are fundamental components in semiconductor technology,facilitating efficient electrical connection and excellent device *** employ first-principles calculations to show that semimetallic graphene is a natural Ohmic contact partner of monolayer semiconducting black arsenic(BAs),for which the top of the valence band is below the Fermi energy of the order of 10~2 *** Ohmic contact arises from the giant Stark effect induced by van der Waals electron transfer from BAs to graphene,which does not destroy their respective band ***,we show that this intrinsic Ohmic contact remains robust across a wide range of interlayer distances(adjustable by strain)or vertical electric fields,whereas the weak spin splitting of the order of 1 meV induced by symmetry breaking plays little part in Ohmic *** findings reveal the potential applications of graphene–BAs in ultralow dissipation transistors.
For engineering purposes, thermoplastic polymers are pivotal in mechanics and electronics due to their versatility, durability, and mechanical strength. However, the escalating global production of plastic has sparked...
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Breast Cancer (BC) remains a significant health challenge for women and is one of the leading causes of mortality worldwide. Accurate diagnosis is critical for successful therapy and increased survival rates. Recent a...
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