Sen Liang

Organic conductive polymer, Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), has been widely used as an important component in organic optoelectronic devices, and recently it emerged as a promising candidate for novel epsilon-near-zero (ENZ) materials. The presence of polarons and bipolarons, acting as charge carriers in conduct...

In thermistor materials, the material constant (B) and resistivity (ρ) of manganese-spinel NTC (Negative Temperature Coefficient) thermistors exhibit a clear correlation: changes in one parameter typically align with changes in the other, with few exceptions. This investigation centers on the system of Ni0.23Mn1.49-xFe0.039+xCo1.24O4 (x = 0, 0.2, 0...

Rare earth elements occupy a significant position in the field of ceramic pigments due to their distinctive electronic structure and physicochemical properties, which can markedly enhance the chromaticity and improve the electrical insulation properties of ceramic pigments. In this study, a novel cobalt-free V-Sm-Y oxide pigments were employed to f...

The consistency of electrical properties is an important factor for the industrial applications of negative temperature coefficient (NTC) thermistors. Spinel-type NTC thermistors typically consist of several transition metal elements. However, variations in the fabrication process can compromise the uniformity of these elemental components, resulti...

The negative temperature coefficient (NTC) thermistor, known for its high sensitivity and rapid response, plays a crucial role in various sectors such as the national economy, military, and aerospace. Linear NTC thermistors can simplify circuit design, but most linear NTC thermistors used today use expensive, heavy, and harmful metals. As such, res...

In this study, pure LaCrO3 ceramic as the negative temperature coefficient (NTC) thermistors were investigated. NTC LaCrO3 powder with an average particle size of 80 nm was prepared using the sol–gel method, and LaCrO3 ceramic samples with a relative density spanning from 92.8 to 95.6% were prepared using spark plasma sintering (SPS) at 1450, 1500,...

Al2O3, commonly known as corundum, plays a significant role in various industrial applications. Typically, the synthesis of α‐Al2O3 requires elevated temperatures exceeding 1200°C, which results in reduced specific surface area and increased particle size due to high‐temperature calcination. In this study, α‐Al2O3 powder was primarily investigated....

Physical therapy is extensively employed in clinical settings. Nevertheless, the absence of suitable animal models has resulted in an incomplete understanding of the in vivo mechanisms and cellular distribution that respond to physical stimuli. The objective of this research was to create a mouse model capable of indicating the cells affected by ph...

Greenhouse gas (GHG) emissions from agricultural activities have a significant impact on global climate change. Benin, a country in West Africa, relies heavily on agriculture, particularly cotton, maize, and rice cultivation. The study aims to estimate GHG emissions across 77 communities in Benin from 2000 to 2019 with a focus on cotton, maize, and...

Industrial areas emit large amounts of extremely high temperatures and aggravate the extreme urban heat island (E-UHI) effect, which has become a non-negligible environmental issue worldwide. Due to the lack of in-depth understanding of the relationship between E-UHI and surface structural synergy, few studies explored the causes and mitigation mea...

It is crucial to synthesize α‐Al2O3, which is a multifunctional material, at high temperatures due to the nature of the material. However, this high‐temperature preparation process is not energy efficient, which goes against the global aim of carbon neutrality. In this study, we explored the effect of adding 1 wt.% (NaCl) as an additive and a suita...

Optical performances of epsilon near zero (ENZ) material gallium doped zinc oxide (GZO) can be effectively tuned by modulating substrate types, substrate heating temperatures, as well as post-annealing procedures. Four GZO film samples with imaginary part of permittivity at their ENZ wavelengths of $\mathrm{\varepsilon }_{\textrm{ENZ}}^{\mathrm{^{\...

The interfacial properties of carbon fibre (CF) reinforced epoxy resin composites are the key factors affecting the mechanical properties of the materials. To improve the interfacial adhesion between CF and epoxy resin, an effective CF surface modification method is proposed in this paper. The surface of graphene oxide (GO) was functionalised with...

The unique performances of Epsilon-near-zero (ENZ) materials allow them to play a crucial role in many optoelectronic devices and have spawned a wide range of inventive uses. In this paper, we found that the modified PEDOT:PSS film formed with a kind of so-called “Metastable liquid-liquid Contact (MLLC)” solution treatment method can achieve a wide...

The research aims at exploring the buckling behavior of embedded co-cured composite sandwich structure (ECCSS) under static load. In accordance with the research objective, an analytical model, which is based on the interlayer stress continuous theory to formulate governing differential equations for predicting the critical buckling loads of ECCSS,...

Emission inventory plays an important role in designing effective emission control strategies. Currently, there is unbalanced development of CO2 and air pollutants emission inventories in China and the spatial information of both cannot be obtained simultaneously, which prevents a collaborative control strategy. In this study, we developed a unifie...

Background Intervertebral disc degeneration (IVDD) can cause low back pain, a major public health concern. IVDD is characterized with loss of cells especially those in nucleus pulposus (NP), due to the limited proliferative potential and regenerative ability. Few studies, however, have been carried out to investigate the in vivo proliferation event...

Solvent refining with Al-Si alloy is a promising purification method for the production of solar-grade silicon (SoG-Si) feedstock owing to the advantages of low production cost and high impurity removal efficiency. In this process, larger refined Si primary dendrites should be easily collected after acid leaching, which is favorable to recovery, th...

This research aims to explore the buckling performance of a co‐cured and stiffened composite structure with embedded multilayer damping membranes (CSCSEMDM) under static load. A buckling model of this structure is established theoretically by using the principle of minimum potential energy and first‐order shear deformation theory. Then, the governi...

Co-curing double-layer damping films embedded composite structure has many advantages over a tradition composite, such as large damping, high specific strength etc. In order to study the dynamic performance of this composite clamped beams, a theoretical model of the free vibration of the beam was established by the combination of first-order shear...

To improve the damping performance of carbon fiber composite beams with co-cured multilayered viscoelastic damping films, the free vibration characteristics and structural optimization of the composite beams were explored. In this article, a mathematical model of the structure is established based on the first-order shear deformation theory. The st...

In this study, the electrical properties of LaAlO3 prepared via spark plasma sintering (SPS) technique at 1650, 1700, and 1750 °C, are studied for the first time. X-ray diffraction (XRD) results show that sintered samples are pure phase lanthanum aluminate. The electrical characteristics of sintered samples are measured through direct resistance–te...

Epsilon-near-zero (ENZ) materials have shown great potential for nonlinear optical applications, such as photon generation, all-optical switch, and time refraction because of the ultrafast hot electrons and hot-electron-induced nonlinearity enhancement. Recently, n-type inorganic ENZ materials, especially transparent conductive oxides (TCOs), with...

Beta''-Al2O3 powder was prepared through freeze-drying with liquid nitrogen, then pressed into bulk samples and sintered at 1570°C. The effects of Al2O3 morphology (rod shaped or flake shaped) on the properties of sintered samples were well discussed. The rod-shaped Al2O3 sample shows a Lotgering factor (LF) of 0.38, an ionic conductivity of 1.852...

Absorptive metamaterials composed of antimony-doped-germanium of different epsilon-near-zero wavelengths and germanium films are designed and fabricated for broadband perfect light absorption around the epsilon-near-zero wavelengths. By integrating two bilayers separated by a semiconductor spacer into a metamaterial structure backed by substrate an...

light absorption is a substantial problem that profoundly influences a wide range of disciplines. Whereas it is fundamentally restricted by the bandgap energy of the involved materials. Herein, we study the sub-bandgap light absorption in germanium films via Berreman mode (BE) and its enhancement through weak coupling to Fabry-Perot cavity mode. Th...

China attaches great importance to methane (CH 4) emissions, and the "14th Five-Year Plan" will formulate actions related to CH 4 emission reduction. Accounting for and understanding CH 4 emissions at the city level are of great importance because cities are the focus of future mitigation and adaptation activities to address climate change, especia...

Composite panel sandwiched by a perforated fiber reinforced damping film (CPSPFRDF) is a novel damping treatment structure. Compared with conventional damping sandwich composites, CPSPFRDF has higher stiffness under the large damping. A ring deformation model is proposed to characterize the misalignment of fibers. A multi-scale mathematical model i...

A representative volume element method and a novel mesomechanical-based polyline model are proposed to describe the misalignment of in-plane fibers induced by the insertion of stitch thread. A multi-scale mathematical model of in-plane elastic parameters for stitched composite laminate is established with ply-angle and stitch parameters as well as...

Generating high-fidelity talking head video by fitting with the input audio sequence is a challenging problem that receives considerable attentions recently. In this paper, we address this problem with the aid of neural scene representation networks. Our method is completely different from existing methods that rely on intermediate representations...

Cronobacter sakazakii is an opportunistic pathogen that can survive extreme desiccation, heat, acid, and osmotic stress. This can increase the risk of infection, resulting in severe diseases, mainly in neonates. The inactivation effect of 405 ± 5-nm light-emitting diode (LED) illumination on C. sakazakii with different initial concentrations and C....

Solvent refining with Al-Si alloy is a promising purification method for production of solar-grade silicon (SoG-Si) feedstock owing to the advantages of low production cost and high impurity removal efficiency. In this process, larger refined Si primary dendrites are easily collected after acid leaching, which is favorable to recovery, thereby to r...

The free vibration behaviors of the embedded and co-cured perforated damping sandwich composite (ECPDSC) in which the holes are filled with resin are investigated. The displacement field of laminated structure and the equivalent elastic parameters of the heterogeneous damping layer are presented by the combination of the first order shear deformati...

The purpose of this work is to improve the interfacial bonding performance of traditional sandwich damping composite. The glass fiber reinforced damping composites with four different damping film thickness were prepared by introducing the interface reaction between damping polymer and resin matrix. The co-cured damping composite specimen is compos...

Na-ionic conductivity and mechanical strength are two important parameters for β"-Al2O3 ceramics used as electrolyte materials. In this study, the ice-templating and freeze-drying processes were used to prepare uniformly porous Al2O3 powder with a certain degree of crystallographic orientation. With the help of spark plasma sintering (SPS) process,...

Reports on extraordinary electrical properties of nano-scale (< 200 nm)-negative temperature coefficient (NTC) thermistors are rarely seen. In this study, nano-scale Ni0.54Mn1.26Fe1.2O4 NTC thermistors were prepared using the spark plasma sintering (SPS) approach. After SPS sintered at 750 °C and then heat-treated at 650 °C, highly dense material w...

Osteoarthritis (OA) is the most common joint disease. The surface of joint cartilage is a defensive and first affected structure of articular cartilage (AC) during the pathogenesis of OA. Alk5 signaling is critical for maintaining AC homeostasis, however, the role and underlying mechanism for the involvement of Alk5 signaling in the phenotypes of a...

In order to improve mechanical performance and interfacial bonding property of traditional sandwich damping composites, a novel epoxy resin matrix carbon fiber reinforced composite with viscoelastic sandwich layers was investigated via co-curing technology. The viscoelastic sandwich layers were developed by designing their formula. The normal curin...

The present work deals with the dynamics properties of two kinds of multi-layered composite sandwich doubly-curved shells with two-layered viscoelastic cores based on first order shear deformation theory (FSDT). The Hamilton’s principle is adopted to deduce the equations of motion that govern the free vibrations of the sandwich doubly-curved shells...

Enhancing the semiconductor–metal phase transition temperature (TSMT) of VO2 is of great consequence for further exploring the potential applications of VO2 at elevated temperatures. In this study, Ge4+-doped VO2 (GexV1−xO2) samples were prepared by the hydrothermal and annealing approach. X-ray diffraction (XRD), high-resolution transmission elect...

Carbon emissions and city development are currently two major areas of interest worldwide. With the continuous development of cities, the problem of carbon emissions has received substantial attention. Analyzing the relationship between carbon emissions and city development is key to building low-carbon cities. This paper selects the revised Zipf's...

Objective We aimed to investigate the relationship between intracranial arterial dolichoectasia (IADE) and intracranial atherosclerosis (ICAS). Methods Patients with acute ischemic stroke were screened via the Nanjing Stroke Registry Program. Patients were diagnosed with IADE (diameter, height of bifurcation, and laterality of basilar artery) base...

The objectives of this study were to evaluate the inactivation efficacy of a 405-nm light-emitting diode (LED) against Cronobacter sakazakii biofilm formed on stainless steel and to determine the sensitivity change of illuminated biofilm to food industrial disinfectants. The results showed that LED illumination significantly reduced the population...

Damping composites with sandwich layer are widely used in the fields of aerospace and high-speed trains. The most fatal defect of traditional damping composites is the poor interfacial adhesion between resin matrix and damping materials. To enhance interfacial bonding performance of traditional damping sandwich composites, the novel glass fiber rei...

The purpose of this work is to reduce the weight of the structure and conclude the most appropriate topology configuration proper for the embedded and co-cured damping composite structure. A topological optimization model for the embedded co-cured damping composite structure is established. For maximizing modal loss factor under the constraint of t...

A well-developed economy and low-carbon emission intensity are important characteristics of low-carbon cities; they also represent important tasks for achieving global climate change mitigation goals. It is seldom discussed, however, how we should identify frontrunner cities from which low-carbon development experiences can be gleaned and then impl...

A new kind of co‐cured sandwich composite was manufactured via inserting tailored damping materials between the lamina to enhance vibration characteristics and sound insulation performance of traditional sandwich composite. The sandwich material was investigated based on the theory of co‐curing, which was superior to the preparation process of trad...

β″-Alumina ceramics are widely used in sodium batteries thanks to their excellent Na+ ion conductivity and high mechanical strength. In this study, highly oriented β″-alumina ceramics with good electrical conductivity and high mechanical strength were fabricated using spark plasma sintering approach at a lower temperature (1300 °C). Furthermore, X-...

Inflammatory pathway is the significant marker of neuro-inflammation and plays a significant role in the expansion of cerebral ischemia/reperfusion injury. Umbelliferone (UF), 7-hydroxy coumarin, has been already proved for its anti-inflammatory and anti-oxidative effects against ischemic brain injury in the rodent model, but its underlying pharmac...

Purpose Carotid atherosclerotic plaque is closely associated with cerebral white matter lesions (WMLs), while intraplaque neovascularization (IPN) contributes significantly to arterial remodeling and plaque vulnerability. In this study, we aim to evaluate the correlation of carotid IPN with cerebral WMLs. Methods The presence of IPN and WMLs were...

CATSHL syndrome, characterized by camptodactyly, tall stature and hearing loss, is caused by loss-of-function mutations of fibroblast growth factor receptors 3 (FGFR3) gene. Most manifestations of patients with CATSHL syndrome start to develop in the embryonic stage, such as skeletal overgrowth, craniofacial abnormalities, however, the pathogenesis...

The purpose of this study is to determine the effects of various parameters on the deflection value and strain energy for the individual stress of a co-cured composite structure with double-layer damping membranes embedded (CCSDDME) simply supported on four edges. To achieve this goal, an analytical solution (double Fourier sine series) was develop...

Pseudomonas aeruginosa can form biofilms on medical implants, industrial equipment, and domestic surfaces, contributing to high morbidity and mortality rates. This study examined the antibiofilm activity of 405-nm light-emitting diode (LED) illumination against mature biofilms formed on stainless steel coupons. We found that the disinfectant suscep...

The ingredients of viscoelastic damping material were designed according to polymerization theory. It was different from traditional damping material. The curing process of resin matrix and vulcanized performance of viscoelastic material were taken into account during manufacturing process. The new co-cured damping composites were prepared via co-c...

To determine the damping properties of co-cured composite structures with different numbers of viscoelastic damping membranes, a dynamic analytical model of the structure was established according to a structural geometric equation and a constitutive relationship. Considering the damping performance of the fiber-reinforced layer itself, the natural...

As a material for solid electrolytes and separators, beta"-Al2O3 is widely used in sodium beta alumina. In this study, a high fraction of beta"-phase for beta"-Al2O3 with preferred orientation was fabricated using the traditional solid-phase synthesis; and the effect of boehmite micro-structure, the aluminum source, on the phase, microstructure, me...

Crystallographic orientation control is an effective method to improve the photoelectrochemical water splitting efficiency of BiVO4 photoanodes. Herein, textured and transparent Mo-BiVO4 photoanodes are fabricated by spin-coating Mo-doped BiVO4 nanoparticles on FTO. The photoelectrodes exhibit a current density of 4.15 mA/cm2 and 2.50 mA/cm2 for su...

A new type of damping composite structure was fabricated by embedding polymer materials into the phenolic resin matrix fiberglass-reinforced laminates. The damping layer of novel damping composites shows the characteristics of anti-aging and strong adhesion compared with the traditional damping composites. The ingredients of the polymer material we...

The effective viscosity (μeff) has a crucial turbulent effect in the fluid flow. In this work, μeff is proposed and applied to the Burton, Prim, and Slichter (BPS) and Ostrogorsky-Muller (OM) analytical models to estimate the solute boundary layer in Czochralski (CZ) growth of silicon. A series of numerical simulations for CZ silicon growth are per...

Hormone therapy continues to be a favourable option in the management of menopausal symptomatology, but the associated risk-benefit ratios with respect to neurodegenerative diseases remain controversial. The study aim was to determine the relation between menopausal hormone therapy and Alzheimer's disease, dementia, and Parkinson's disease in human...

C 8 H 12 N 3 O 4 F, monoclinic, P 2 1 / c (no. 14), a = 4.8090(3) Å, b = 9.9340(6) Å, c = 22.2437(13) Å, β = 90.138(8)°, V = 1062.64(11) Å ³ , Z = 4, Rgt ( F ) = 0.0452, wRref ( F² ) = 0.1227, T = 293(2) K.

C 13 H 16 N 4 O 4 , monoclinic, P 2 1 / n (no. 14), a = 4.7965(12) Å, b = 10.053(2) Å, c = 27.570(6) Å, β = 90.292(8)°, V = 1329.3(5) Å ³ , Z = 4, Rgt ( F ) = 0.0426, wRref ( F² ) = 0.1115, T = 292(3) K.

The purpose of this study is to obtain the maximum loss factor of the embedded co-cure damping composite structure with the boundary condition of four edges clamped. To achieve this goal, the strain energy of each stress component is deduced using the Ritz method, and the loss factor of the structure is calculated. The present formulation is valida...

The activation energy of the β → α/ω phase transformation increased monotonously with the application of a continuous heating process to a Ti-15Mo-2.7Nb-3Al-0.2Si alloy. Precipitation behaviour of the alloy aged at different temperatures were analysed with scanning electron microscopy, electron backscattered diffraction and transmission electron mi...

Background: Internal carotid artery dissection has been well recognized as a major cause of ischaemic stroke in young and middle-aged adults. However, internal carotid artery dissection induced hypoglossal nerve palsy has been seldom reported and may be difficult to diagnose in time for treatment; even angiography sometimes misses potential dissec...

High temperature-sensitive Ni0.54Mn1.26Fe1.2O4 NTC ceramics were prepared by a conventional two-step sintering approach in the present work. The effect of sintering process on the microstructural and electrical properties of submicro NTC thermistors was investigated. The micromorphology results show increase of the first-step sintering temperature...

In this work, quasi two dimensional spinel ZnCo2O4 (ZCO) nanosheets constituted by ZCO grain with different size were prepared via a facile solvothermal method and followed by a post-treatment. It shows that the small ZCO grain can be obtained by a fast cooling post-treatment. Further, to enhance the conductivity of ZCO, uniform and compact ZCO nan...

C 20 H 14 S, monoclinic, C 2/ c (no. 15), a = 31.155(3) Å, b = 5.8419(6) Å, c = 7.7505(8) Å, β = 94.664(4)°, V = 1405.9(3) Å ³ , Z = 4, Rgt ( F ) = 0.0480, wRref ( F² ) = 0.1352, T = 193(2) K.

Salmonella Typhimurium, a common Gram-negative foodborne pathogen, threatens public health and hinders the development of the food industry. In this study, we evaluated the antibiofilm activity of coenzyme Q0 (CoQ0) against S. Typhimurium. Besides, the inhibition of the S. Typhimurium’s adhesion to and invasion of Caco-2 cells and its survival and...

Cronobacter sakazakii is a foodborne bacterial pathogen with resistance to a wide range of stress conditions. Here, we investigated the effects of thymoquinone (TQ) on the environmental and antibiotic stress tolerance of C. sakazakii. After determining the subinhibitory concentrations (SICs) of TQ against C. sakazakii, changes in the percent surviv...

Coenzyme Q0 (CoQ0) demonstrates antineoplastic and anti-inflammatory properties; however, its antimicrobial and antibiofilm activities against Vibrio parahaemolyticus have not been extensively examined. Thus, the aim of the current study was to investigate the antimicrobial and antibiofilm activities, along with the underlying mechanism, of CoQ0 ag...

The purpose of this paper is to obtain the bending properties of an embedded co-cured damping composite structure simply supported on four edges. To achieve this goal, the deflection value and strain energy of each stress component are deduced using the Ritz method. The results obtained show that the theoretical value and the value obtained by the...

Coenzyme Q0 (CoQ0) has demonstrated antitumor, anti-inflammatory, and anti-angiogenic activities. Cronobacter sakazakii is an opportunistic foodborne pathogen associated with high mortality in neonates. In this study, the antimicrobial activity and possible antimicrobial mechanism of CoQ0 against C. sakazakii were investigated. Moreover, the inacti...

Dense nano-grained Ni0.7Mn2.3O4 negative temperature coefficient (NTC) thermistors were fabricated by a novel two-step sintering approach that combines rapid sintering and principle of conventional two-step sintering technique. Samples were sintered at 1042 °C for 30 s in the first rapid step and then at 850–950 °C for 20 h in the second soaking st...

Listeria monocytogenes can persist under a wide range of stress conditions, contributing to its ubiquitous distribution and unique pathogenic traits. Light from light-emitting diodes (LEDs) has recently been shown to inactivate various pathogens. Thus, the aim of the present study was to evaluate the effects of light treatment using a 405-nm LED on...

The hysteresis loss of Ni–5 at.%W (Ni5W) substrate contributes considerably to the alternating current (AC) loss of coated conductors (CCs) working at low transporting current or low-frequency field. In the present work, the evolution of texture and magnetic properties in Ni5W substrates is analyzed and also the relationship between magnetic proper...

The structural damping composite was prepared by interleaving viscoelastic materials between the glass fiber reinforced phenolic resin laminates. It is different from the co-cured damping composites which have been investigated. Based on the principle of polymer synthesis, considering the curing process of resin and the vulcanization characteristic...

In this work, a first-order discrete layer model is performed to deal with the free vibration and buckling analysis of composite sandwich plates in thermal environment. Owing to considering the effect of rotary inertias and shear deformation, thin-to-moderately thick shells can be analyzed. The differential equations of motion are derived from Hami...

The damping properties analysis of composite sandwich doubly-curved shells (CSDCS) is presented in this paper. First, based on the Hamilton's principle, governing equations of CSDCS are developed by applying the first-order shear deformation shell theory. Because the rotary inertias and shear deformation of all layers are taken into account, thin-t...

The metallic Ni–5 at.%W (Ni5W) substrate with sharp cube texture is found as one of the promising candidates used for fabrication of coated conductors. However, the alternating current (AC) loss, partly contributed by the ferromagnetic Ni5W substrate is unavoidable. In this work, we analyzed the evolution of magnetic properties of Ni5W substrates v...

In this study, Zn-doped Ni–Mn–Al–O negative temperature coefficient thermistor (NTC) film with high electrical performance has been demonstrated. XRD, XPS, SEM and electrical measurements were carried out to explore the impact of Zn-doping. The XRD analysis of NiMn1.8−xAl0.2ZnxO4 films confirmed the cubic spinel crystal phase regardless of x. The S...

The aim of this paper is to perform a structural optimization of composite beams with multilayered viscoelastic cores based on the first-order shear deformation theory. First, the numerical model of vibration governing equations is derived by employing the Hamilton's principle, and these vibration equations are solved by means of the closed-form Na...

This paper deals with the free vibration analysis of two kinds of five-layered composite sandwich plates with two-layered viscoelastic cores based on the first-order shear deformation theory for the first time. To fulfill this purposes, first, the Hamilton's principle is employed to derive the equations of motion that govern the free vibrations of...

Purpose In this study, the vibration analysis of a three-layered sandwich structure with composite face layers and a viscoelastic core is considered. To facilitate the engineering technical personnel to easily choose the appropriate vibration analysis model in the design of symmetry composite sandwich structure, the applicable condition of two lin...

This paper deals with the dynamic properties of three-layered composite sandwich open circular cylindrical shells (CSOCCS). First, the equations of motion that govern the free vibrations of CSOCCS are derived by applying Hamilton's principle based on the first-order shear deformation shell theory. Owing to considering the effect of rotary inertias...