INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Xiaotong Shi,Zhangheng Wang,Wenbin Song,Xiaofeng Hao,Delin Sun
Developed highly efficient heating products with a fast heating rate, high FIR emissivity, and stable heat generation have a wide range of applications. This study systematically investigates the effects of varying contents of carbon nanotubes (CNT) and far-infrared nanocomposites (FIR-NCP) on the performance of far-infrared electric wood (FIR-EW). The experimental results indicate that as the content of CNT and FIR-NCP increases, the temperature rise, FIR emissivity, electrical resistance, and weight gain rate of FIR-EW significantly improve. Notably, when CNT and FIR-NCP are added together, the FIR emissivity rapidly increases to 98–99 %. Under a voltage of 20 V, the temperature of FIR-EW rises quickly within 3 minutes, demonstrating excellent electric thermal conductivity. Scanning electron microscopy (SEM) analysis shows that CNT and FIR-NCP are uniformly distributed within the wood matrix, forming an interconnected network that enhances the overall performance of the wood. Fourier transform infrared spectroscopy (FTIR) analysis further confirms the changes in functional groups of the wood after chemical treatment, indicating that CNT, PPy, and FIR-NCP successfully bond with the wood substrate. The findings provide important theoretical foundations and practical guidance for the development of high-performance electric wood.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Zhiyuan Zhang,Jinwu Chen,Ying Tang,Huaicheng Xiang,Jie Li,Liang Fang,Junqi Chen
Two novel low- ε r CaRECeV 3 O 12 (RE = Nd, Sm) microwave dielectric ceramics were prepared to utilize the solid-state method. According to XRD and Raman spectroscopy data, the CaRECeV 3 O 12 (RE = Nd, Sm) ceramics had a tetragonal zircon-type with an I 4 1 / amd space group. Dense CaNdCeV 3 O 12 and CaSmCeV 3 O 12 ceramics sintered at 1225 °C and 1200 °C showed ε r ∼11.85 ± 0.1 and 11.33 ± 0.1, Q × f ∼40,100 ± 500 GHz and 43,290 ± 500 GHz, τ f ∼ −27.2 ± 0.5 ppm/°C and −22.4 ± 0.5 ppm/°C, along with α L of 9.4 ppm/°C and 8.5 ppm/°C, respectively. The measured ε r and corrected ε r (corr) values were larger than ε r (C-M) (9.41 and 9.47) in CaNdCeV 3 O 12 and CaSmCeV 3 O 12 due to the cations being, on average, under-bonded and the overall structures being in a slightly expanded state. The slightly higher | < d > | value of CaNdCeV 3 O 12 led to its higher ε r (corr) value, even though it had a lower α D /V m value. The sign and magnitude of τ f values for CaNdCeV 3 O 12 and CaSmCeV 3 O 12 were mainly determined by their positive temperature coefficients of dielectric polarizability τ αm of +36.2 ppm/°C and +32.1 ppm/°C, respectively. The inherent dielectric constant and dielectric loss were examined using far-infrared reflectivity spectra, Raman spectra, and the packing fraction.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
PHARMACOLOGICAL RESEARCH
·
2024
·
IF 9.1
Bo Qin,Shi-jie Fu,Xiong-fei Xu,Jiu-jie Yang,Yuping Wang,Lin-na Wang,Bai-xiong Huang,Jing Zhong,Wan-yu Wu,Heng-ao Lu,Betty Yuen Kwan Law,Nick Wang,Io Nam Wong,Vincent Kam Wai Wong
In future regenerative medicine, far-infrared radiation (FIR) may be an essential component of optical therapy. Many studies have confirmed or validated the efficacy and safety of FIR in various diseases, benefiting from new insights into FIR mechanisms and the excellent performance of many applications. However, the lack of consensus on the biological effects and therapeutic parameters of FIR limits its practical applications in the clinic. In this review, the definition, characteristics, and underlying principles of the FIR are systematically illustrated. We outline the therapeutic parameters of FIR, including the wavelength range, power density, irradiation time, and distance. In addition, the biological effects, potential molecular mechanisms, and preclinical and clinical applications of FIR are discussed. Furthermore, the future development and applications of FIR are described in this review. By applying optimal therapeutic parameters, FIR can influence various cells, animal models, and patients, eliciting diverse underlying mechanisms and offering therapeutic potential for many diseases. FIR could represent a superior alternative with broad prospects for application in future regenerative medicine.
研究领域:
医学
·
生物学
·
光学疗法
✓ 已验证
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Shimeng Zhang,Zeyu He,Zhiguo Wang,Zhenggang Rao,Yunlong Hu,Chunchun Li,Longlong Shu
The diopside-structured CaZnGe 2 O 6 ceramics were synthesized using the conventional solid-state reaction method in this study, and their crystal structure, microstructural evolution, and microwave dielectric properties were systematically investigated. The XRD and Rietveld refinement analyses confirmed that CaZnGe 2 O 6 crystallizes in the monoclinic crystal system with a C 2/ c space group. The intrinsic microwave dielectric properties of the ceramics were evaluated using far-infrared spectroscopy. The ceramic structure exhibits high density and microstructural homogeneity after sintering at 1130 °C, resulting in exceptional microwave dielectric properties achieved at this optimal temperature ( ε r = 8.78 Q×f = 63,782 GHz, τ f = −66.4 ppm/°C). These findings highlight the potential application of CaZnGe 2 O 6 ceramics as low-permittivity materials suitable for microwave devices.
研究领域:
材料科学
·
物理学
✓ 已验证
产品关联
DOI
高影响因子
ELECTROPHORESIS
·
2018
·Vol. 40
·期 4
·582-586
·
IF 2.569
Danjing Wan,Yu Han,Farui Li,Hua Mao,Gang Chen
Far infrared radiation was employed in the rapid removal of the solvents in the extracts of Plumula Nelumbinis and standard mixture solutions to prevent the interference of the solvent peaks toward their capillary electrophoretic measurements. The sample solutions in small vials were exposed to far infrared ray at 60°C for 3 min to remove solvent. The dried samples in the vials were each dissolved into running buffer with the aid of ultrasonication for capillary electrophoresis analysis. The far infrared-assisted solvent removal approach was sucessfully applied in the rapid determination of neferine, liensinine, isoliensinine, rutin and hyperoside in Plumula Nelumbinis . The five analytes could be well separated within 12 min in a 40 cm long fused silica capillary at a separation voltage of 12 kV in a 50 mM borate buffer (pH 9.2). The results indicated that the interferences of the solvent peaks in the capillary electropherograms of the herbal drugs were eliminated completely.
研究领域:
分析化学
·
中药学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FIBERS AND POLYMERS
·
2022
·Vol. 23
·期 11
·3022-3027
·
IF 2.347
Yu Miao,Chen Zhuoming,Xin Binjie,Liu Xunlin,Xu Wenjun
Pearl is a pure natural material, which has multifunctional properties such as anti-ultraviolet, anti-static and far-infrared physiotherapy. In this study, a series of polyacrylonitrile/pearl nanofibrous membranes (PPFM) with different pearl powders were prepared by the electrospinning method. The membranes were then investigated by scanning electron microscopy (SEM) and fourier-transform infrared spectroscopy (FTIR), and their functional properties such as far-infrared emission, ultraviolet (UV) protection, and electrical resistivity were also studied. The experimental results reveal that pearl powders can significantly enhance the far-infrared emission of polyacrylonitrile (PAN), and the average emissivity was increased up to 0.795 in the wavelength range of 8–14 μm when the pearl powder mass fraction increased to 9 %. In addition, the UV protection factor (UPF) of the membrane with 9 % pearl powder could reach 968, while the UPF of the pristine PAN membrane was only 11, and the electrical resistivity of PPFM was also improved after blending with pearl powders. The study proves that pearl powder can efficiently endow the PAN with multifunctional properties for more promising applications.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2025
·
IF 6.6
Chuxuan Zhang,Li Zhang,Yue Zhao,Ruiguo Cui,Hongyu Wu,Man Xu,Weiwei Liu,Ruijie Liu,Long Xu,Lijun Song
This study applied three heating pretreatment methods, including far infrared heating (FIH), stir-frying heating (SFH), and microwave radiation heating (MRH), to raw materials before the cold-press extraction of walnut oil (WO). The quality characteristics of WO and walnut protein isolate (WPI) were systematically studied. The results showed that different pretreatment methods significantly affected the physicochemical properties, oxidative stability, and antioxidant activity of WO ( p < 0.05). FIH pretreatment notably improved the yield, antioxidant activity, oxidation stability, and total polyphenol content of WO ( p < 0.05). Significant changes were also observed in the flavor profile of WO across the different pretreatment methods. Additionally, the WPI obtained after FIH pretreatment exhibited higher protein solubility (49.28%), water-holding capacity (4.58 g/g), and emulsion stability (94.63 min). These findings indicate that FIH pretreatment is a simple and effective strategy for producing high-quality WO and WPI. The findings provide technical support for enhancing the quality of WO and WPI in the food industry, while offering a theoretical foundation for the comprehensive utilization and value-added processing of walnut resources.
研究领域:
食品科学
·
植物化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2018
·
IF 3.794
Y.H. Zhang,J.J. Sun,N. Dai,Z.C. Wu,H.T. Wu,C.H. Yang
A new kind of low-temperature fired Eu 2 Zr 3 (MoO 4 ) 9 ceramic was fabricated by conventional solid-state reaction method. The mixed powders was calcined at 600 ℃ and the samples were sintered at 500 ℃ –700 ℃ for 4 h. X-ray diffraction analysis and Rietveld refinement indicated that Eu 2 Zr 3 (MoO 4 ) 9 belonged to a trigonal system with space group R-3c. Bond ionicity, lattice energy and bond energy of the ceramic were calculated by the complex chemical bond theory. Microwave dielectric properties were determined at microwave frequencies of 9.7–14.7 GHz by a network analyzer. Far infrared spectra indicated the main contribution to polarization for Eu 2 Zr 3 (MoO 4 ) 9 ceramics was the absorption of structural phonon oscillation. The ceramic sintered at 600 ℃ for 4 h exhibited the best dielectric properties with a relative permittivity ( ε r ) of 10.75, a quality factor ( Q·f ) of 74,900 GHz and a temperature coefficient of resonance frequency ( τ f ) of -8.88 ppm/℃.
研究领域:
材料科学
·
无机化学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Chengzhi Xu,Hongyu Yang,Linzhuang Xing,Yuan Wang,Guorui Zhao,Li Chen,Zhimin Li
The Al 2 Mo 3 O 12 ceramic with monoclinic type is prepared at the sintering temperature as low as 750 °C, which exhibits excellent microwave dielectric properties of ε r = 4.99, Q × f = 49,579 GHz ( f = 14.8 GHz), and τ f = −26 ppm/°C. The relationship between structure and characteristics is analyzed through the P–V–L chemical bond theory in depth, and the dielectric properties are investigated in combination with far-infrared spectroscopy. Results show that it is Mo–O bond that is responsible mainly for bond ionicity and dielectric polarizability, and structural stability as well. Based on the far-infrared reflectivity spectra and complicated dielectric function analysis, the calculated and measured results are in relative agreement using the classical damped oscillation mode, indicating that the mode at 80.23 cm −1 is dominant for the contribution to dielectric properties. This study gives an insight into the structural characteristic and provides a guide to further improve the microwave dielectric performance of Al 2 Mo 3 O 12 ceramic.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
Innovative Food Science & Emerging Technologies
·
2023
·
IF 6.6
Yejun Zhong,Yaqi Zhang,Ziyi Zhu,Yiheng Wang,Zicong Zeng,Chengmei Liu
The peroxidase in black rice was inactivated by superheated steam (SS), far infrared radiation (FIR), and microwave treatment (Mw) respectively, and then their effects on the physicochemical and nutritional properties of black rice were compared. Results showed that SS, FIR, and Mw completely inactivated peroxidase with minimum time of 16 min, 8 min, 480 s, respectively. FIR and Mw significantly decreased all pasting viscosities and gelatinization enthalpy (ΔH), while SS increased most pasting viscosities and showed almost no influence on ΔH. Besides, black rice stabilized by SS rather than FIR and Mw showed similar cooking and sensory quality and microscopic structure to that of raw black rice. Furthermore, SS was more favorable to retain the phenolics, flavonoids , anthocyanins and antioxidant capacity than FIR and Mw. These results suggested that SS was most suitable to improve the shelf life of black rice with minimal damages to its physicochemical and nutritional properties.
研究领域:
食品科学
·
营养学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF FOOD SCIENCE
·
2020
·Vol. 85
·期 3
·582-591
·
IF 2.479
Luyun Cai,Jiangli Wan,Xiuxia Li,Jianrong Li
To evaluate the physicochemical properties and structure of thawed fillets, following six treatments were used: conventional thawing, microwave thawing, microwave or ultrasound combined with vacuum thawing, magnetic nanoparticles combined with microwave or far-infrared thawing. The thawing loss, cooking loss, pH, color, texture change, water-holding capacity, and water migration of fish fillets were determined. The total volatile base nitrogen and thiobarbituric acid were used to determine the degree of protein degradation and lipid oxidation. Microscope observations and scanning electron microscope (SEM) were used to observe fiber microstructure. Results indicated that both microwave combined with vacuum thawing and far-infrared combined with magnetic nanoparticles thawing had desirable physicochemical properties as compared to other thawing methods. The lower total volatile base nitrogen and thiobarbituric acid values had less effect on protein degradation and lipid oxidation of thawing process. Besides, both microwaves combined with vacuum thawing and far-infrared combined with magnetic nanoparticles thawing samples had no significant difference in immobilized and bond water compared with fresh sample. SEM and microscopic observation showed that the myofibril bundles were arranged regularly and smoothly in microwave combined with vacuum thawing and far-infrared combined with magnetic nanoparticles thawing samples compared with other thawed methods. Thus, the microwave combined with vacuum thawing and far-infrared combined with magnetic nanoparticles thawing as potential thawing methods could be used to maintain the quality of thawed fish fillets. Practical Application Largemouth bass ( Micropterus salmoides ) is a good source of animal protein. The fish needs to be frozen for circulation because of geographical and seasonal factors, so thawing methods can directly affect the quality of thawed fish. The results showed that the microwave combined with vacuum and the magnetic nanoparticles combined with far-infrared thawing could better maintain the quality of thawed fish.
研究领域:
食品科学
·
生物学
✓ 已验证
DOI
PubMed
高影响因子
Food Chemistry-X
·
2025
·
IF 8.2
Hui Guo,Ci Yuan,Xin Yao,Jiayu Yang,Wenzhe Liu,Zulong Huang,Guoyuan Xiong,Shunchang Pu
The effect of seven different thawing methods (atmospheric temperature thawing (AT), microwave thawing (MT), microwave magnetic nanoparticles thawing (MMT), microwave vacuum thawing (MVT), far-infrared thawing (FT), far-infrared magnetic nanoparticles thawing (FMT) and far-infrared ultrasonic thawing (FUT)) on water holding capacity, water mobility and microstructure of frozen pork was examined. The results showed that the thawing loss (1.5 %), cooking loss (22.5 %), and centrifugal loss (20.8 %) of MVT treatment were lower than those of other methods. Low field nuclear magnetism (LF-NMR) and magnetic resonance imaging (MRI) results showed that in MVT and FUT treatment, the proportion of bound and immobilized water increased, while free water decreased. The microstructure of frozen pork was significantly improved by microwave or far-infrared thawing assisted by magnetic nanoparticles, having a more compact and granular microstructure. In summary, MVT might be a favorable method to improve thawing meat quality and had broad potential applications in thawing meat processing.
研究领域:
食品科学
·
食品加工
·
肉类科学
·
应用物理学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）