Current Issue http://www.scupgkg.cn EN-US http://www.scupgkg.cn/EN/1004-7964/current.shtml http://www.scupgkg.cn 1004-7964 http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.001 http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.002 2O₃) was uniformly coated on the grain surface of Ba/NL to fabricate X-ray shielding material (Gd-Ba/NL). X-ray shielding performance results showed that the 1.5-mm-thick Gd_1.80-Ba_2.32/NL could provide an equivalent level of shielding efficiency to 2.6-mm-thick Ba_2.32/NL . The synergistic effect of Gd and Ba contributed to a shielding efficiency exceeding 70% for the X-rays in the energy range of 16-48 keV, and provided a comparable mass attenuation coefficient for the X-rays in the energy of 65 and 83 keV to that of 0.25 mm lead plate. Furthermore, Gd_1.80-Ba_2.32/NL exhibited several advantages, including superior wearable comfortableness and excellent mechanical strength. Notably, it possessed a density that is only 1/3 of lead apron, while offering a water vapor permeability 12 times higher than that of lead apron. Its tensile strength and tearing strength surpassed national standards by 2 and 3 folds, respectively. Consequently, Gd_1.80-Ba_2.32/NL holds great potential as a wearable X-ray shielding material capable of replacing traditional lead apron.]]> http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.003 254, a measure of the degree of humification, showed that the mixed culture was three times higher than the pure culture, indicating a significant increase in the aromaticity of the transformed abiotic humic products compared to the mixed culture. This work revealed that abiotic humification and its biotransformation products were important control factors governing the standardized treatment of tannery wastewater.]]> http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.004 http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.005 3+ by the functional group (amide group) on the monomer acrylamide, and the functional group (amide group) on the monomer acrylamide could form reversible hydrogen bonds. It is found that the film has self-healing ability after adding metal ions, and the repair effect is different with different content of metal ions. The best self-healing temperature and the best self-healing time of the film were studied. The tensile test shows that when the content of metal ions was 0.15 g, the tensile strength repair rate of the polymer was up to 80%. The best self-healing time of the film was 12 h, and the best self-healing temperature was 60 ℃. The coordination of metal ions and special functional groups in polymers has made the self-healing materials have excellent mechanical properties and good repair performances.]]> http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.006 http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.007 http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.008 http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.009 http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.010 http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.011 WB600-KerT enzyme was safe and caused excellent fiber dispersion. The tensile strength and tear strength of enzyme-dehairing parchment were higher than that of sodium sulfide dehairing parchment, and significantly higher than that of cardboard, coated paper and other paper types. Afterwards, enzymatic unhairing parchment exhibited remarkable resistance to light aging. The color change value of enzyme-dehairing parchment paper was significantly lower than that of sulfide-dehairing parchment, cardboard and coated paper. This can be attributed to the fact that, during the UV light continuous radiation, amide bond of enzyme-dehairing parchment paper undergoes a large number of breaks, so that it has a better aging resistance. Additionally, the higher fiber dispersion of the enzymatic unhairing parchment has positive influence on permeability of ink molecules. This results in better paper flatness, smoother writing experience, and improved handwriting clarity compared to sulfide-unhairing parchment.]]> http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.012 http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.013 ® plantar pressure measurement system was used simultaneously with RSscan^® force platform to test their gait cycle, center of pressure (COP) and plantar dynamics characteristics including maximum force, peak pressure, and pressure-time integral during natural walking. Results showed that, with the decrease in midsole hardness, the forefoot contact phase (FFCP) became longer, the foot flat phase (FFP) became shorter, the supination degree decreased significantly, and the pronation degree increased significantly. This study has important reference value for improving the comfort and stability of high-heeled shoes, and can provide scientific and reliable theoretical support for the selection and development of high-heeled midsole materials.]]> http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.014 http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.015 http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.016 http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.017 http://www.scupgkg.cn/EN/10.19677/j.issn.1004-7964.2024.03.018