Nowadays,the development of effective bioplastics aims to combine traditional plastics’functionality with environmentally friendly properties.The most effective and durable modern bioplastics are made from the edible...Nowadays,the development of effective bioplastics aims to combine traditional plastics’functionality with environmentally friendly properties.The most effective and durable modern bioplastics are made from the edible part of crops.This forces bioplastics to competewith food production because the crops that produce bioplastics can also be used for human nutrition.That is why the article’s main focus is on creating bioplastics using renewable,non-food raw materials(cellulose,lignin,etc.).Eco-friendly composites based on a renewable bioplastic blend of polybutylene adipate-co-terephthalate,corn starch,and poly(lactic acid)with reed and hemp waste as a filler.The physic-chemical features of the structure and surface,as well as the technological characteristics of reed and hemp waste as the organic fillers for renewable bioplastic blend of polybutylene adipate-co-terephthalate,corn starch,and poly(lactic acid),were studied.Theeffect of the fractional composition analysis,morphology,and nature of reed and hempwaste on the quality of the design of eco-friendly biodegradable composites and their ability to disperse in the matrix of renewable bioplastic blend of polybutylene adipate-co-terephthalate,corn starch and poly(lactic acid)was carried out.The influence of different content and morphology of reed and hemp waste on the composite characteristics was investigated.It is shown that the most optimal direction for obtaining strong eco-friendly biodegradable composites based on a renewable bioplastic blend of polybutylene adipate-co-terephthalate,corn starch,and poly(lactic acid)is associated with the use of waste reed stalks,with its optimal content at the level of 50 wt.%.展开更多
The inflammatory response is a crucial physiological process that can lead to tissue damage and is considered a causative factor for various chronic diseases,such as rheumatoid arthritis.Recent research has focused on...The inflammatory response is a crucial physiological process that can lead to tissue damage and is considered a causative factor for various chronic diseases,such as rheumatoid arthritis.Recent research has focused on exploring valuable nutrients derived from Cannabis sativa L.(hemp)seeds,particularly hemp seed proteins.Therefore,this study aimed to investigate the release of anti-inflammatory peptides from Lactobacillus paraplantarum-fermented hemp seed proteins.To confirm the complete hydrolysis of hemp seed proteins during the fermentation process,sodium dodecyl sulfate-polyacrylamide gel electrophoresis(SDS-PAGE)was employed.Further,the isolation and purification of peptides were achieved through ultrafiltration.The identity of peptides was nextly established using ultra-high performance liquid chromatography coupled with hybrid quadrupole time-of-flight mass spectrometry(UHPLC-QTOF-MS).The results revealed a total of 39 identified peptides in fermented hemp seeds,with 9 peptides selected based on their relative quantity.Notably,AAELIGVP(P1),AAVPYPQ(P2),VFPEVAP(P4),DVIGVPLG(P6),and PVPKVL(P9)demonstrated strong anti-inflammatory abilities in lipopolysaccharide(LPS)-induced RAW264.7 macrophage cells.Molecular docking was used to understand the potential anti-inflammatory mechanism of these 5 peptides,and in silico results indicated that P1,P2,P4,P6,and P9 could bind to the active sites of toll-like receptor 4(TLR-4),nuclear factor-κB(NF-κB),and inhibitor of NF-κB kinase(IKK)with higher binding energies.Overall,these findings indicate that hemp seeds have potential to be a source of bioactive peptides for functional foods with anti-inflammatory properties.展开更多
The internodes of the new cultivar Long-ma No.1 of Cannabis sativa L.（Industrial hemp） were used as explants for tissue culture. The paper studied the key factors of industrial hemp tissue culture, such as the physi...The internodes of the new cultivar Long-ma No.1 of Cannabis sativa L.（Industrial hemp） were used as explants for tissue culture. The paper studied the key factors of industrial hemp tissue culture, such as the physiological state of aseptic seedlings, the selection and concentration of plant growth regulators and so on.Hemp seed disinfection used 75% alcohol for 2 min and sterilized in 1‰ Hg Cl2 for 5min. The best combinations of plant growth regulators were 1.0 mg/L 6-BA and 0.5mg/L NAA for the induction of callus, and the best combinations of hormones were1.0 mg/L KT and 0.5 mg/L NAA for differentiation rate of adventitious bud.展开更多
Concrete is one of the most important building material and day by day the utilization of concrete is increasing to meet the infrastructure development requirement.On one hand it is unavoidable but some alternative to...Concrete is one of the most important building material and day by day the utilization of concrete is increasing to meet the infrastructure development requirement.On one hand it is unavoidable but some alternative to be explored to reduce the global environmental impact caused by the concrete.To overcome this from the last decade the world is looking towards the fact of sustainability due to rapid industrialization.The growth in the construction industry increased the demand of concrete as construction material.This concrete produces significant amount of greenhouse emission in the environment.There is a need to find an alternative solution to minimize the greenhouse emission emitted from the concrete manufacturing plant.Hempcrete is a building material prepared from hemp yarns,lime and water.This composite material has several beneficial properties like low in cost,easily available,thermal and acoustic insulation,low density and sustainable cause of no adverse impact of carbon footprint on production.In this study the properties and several benefits of the hempcrete were discussed in detail.展开更多
收发组合作为无人机数据链系统的核心部件,其抗电磁干扰能力直接影响机载通信安全。为检验核电磁脉冲(HEMP)辐照条件下某型无人机数据链系统的可靠性,基于快沿电磁脉冲模拟系统建立了无人机HEMP效应试验平台,以典型"失锁"效...收发组合作为无人机数据链系统的核心部件,其抗电磁干扰能力直接影响机载通信安全。为检验核电磁脉冲(HEMP)辐照条件下某型无人机数据链系统的可靠性,基于快沿电磁脉冲模拟系统建立了无人机HEMP效应试验平台,以典型"失锁"效应作为受干扰判别依据,开展了无人机数据链系统辐照效应研究,分析了无人机数据链"失锁"效应机理。结果表明:核电磁脉冲场强达到72 k V/m时能够对飞机数据链测试系统产生干扰,导致地面监视系统回报通信链路全部失锁、飞行控制模拟器黑屏,且收发组合放置姿态改变基本不影响数据链系统干扰阈值。通过电磁仿真分析发现,飞行控制模拟器端接电缆耦合外界强场信号使收发组合供电瞬时中断,进而导致数据链测试系统产生干扰。排除数据链测试系统中飞行控制模拟器,在辐照场强<90 k V/m情况下,无人机下行遥测链路不会出现失锁。展开更多
文摘Nowadays,the development of effective bioplastics aims to combine traditional plastics’functionality with environmentally friendly properties.The most effective and durable modern bioplastics are made from the edible part of crops.This forces bioplastics to competewith food production because the crops that produce bioplastics can also be used for human nutrition.That is why the article’s main focus is on creating bioplastics using renewable,non-food raw materials(cellulose,lignin,etc.).Eco-friendly composites based on a renewable bioplastic blend of polybutylene adipate-co-terephthalate,corn starch,and poly(lactic acid)with reed and hemp waste as a filler.The physic-chemical features of the structure and surface,as well as the technological characteristics of reed and hemp waste as the organic fillers for renewable bioplastic blend of polybutylene adipate-co-terephthalate,corn starch,and poly(lactic acid),were studied.Theeffect of the fractional composition analysis,morphology,and nature of reed and hempwaste on the quality of the design of eco-friendly biodegradable composites and their ability to disperse in the matrix of renewable bioplastic blend of polybutylene adipate-co-terephthalate,corn starch and poly(lactic acid)was carried out.The influence of different content and morphology of reed and hemp waste on the composite characteristics was investigated.It is shown that the most optimal direction for obtaining strong eco-friendly biodegradable composites based on a renewable bioplastic blend of polybutylene adipate-co-terephthalate,corn starch,and poly(lactic acid)is associated with the use of waste reed stalks,with its optimal content at the level of 50 wt.%.
基金the 4^(th) Brain Korea(BK)21 Plus Project(4299990913942)financed by the Korean Government,Republic of Korea.
文摘The inflammatory response is a crucial physiological process that can lead to tissue damage and is considered a causative factor for various chronic diseases,such as rheumatoid arthritis.Recent research has focused on exploring valuable nutrients derived from Cannabis sativa L.(hemp)seeds,particularly hemp seed proteins.Therefore,this study aimed to investigate the release of anti-inflammatory peptides from Lactobacillus paraplantarum-fermented hemp seed proteins.To confirm the complete hydrolysis of hemp seed proteins during the fermentation process,sodium dodecyl sulfate-polyacrylamide gel electrophoresis(SDS-PAGE)was employed.Further,the isolation and purification of peptides were achieved through ultrafiltration.The identity of peptides was nextly established using ultra-high performance liquid chromatography coupled with hybrid quadrupole time-of-flight mass spectrometry(UHPLC-QTOF-MS).The results revealed a total of 39 identified peptides in fermented hemp seeds,with 9 peptides selected based on their relative quantity.Notably,AAELIGVP(P1),AAVPYPQ(P2),VFPEVAP(P4),DVIGVPLG(P6),and PVPKVL(P9)demonstrated strong anti-inflammatory abilities in lipopolysaccharide(LPS)-induced RAW264.7 macrophage cells.Molecular docking was used to understand the potential anti-inflammatory mechanism of these 5 peptides,and in silico results indicated that P1,P2,P4,P6,and P9 could bind to the active sites of toll-like receptor 4(TLR-4),nuclear factor-κB(NF-κB),and inhibitor of NF-κB kinase(IKK)with higher binding energies.Overall,these findings indicate that hemp seeds have potential to be a source of bioactive peptides for functional foods with anti-inflammatory properties.
基金Supported by Heilongjiang Academy of Sciences Youth Innovation Fund~~
文摘The internodes of the new cultivar Long-ma No.1 of Cannabis sativa L.（Industrial hemp） were used as explants for tissue culture. The paper studied the key factors of industrial hemp tissue culture, such as the physiological state of aseptic seedlings, the selection and concentration of plant growth regulators and so on.Hemp seed disinfection used 75% alcohol for 2 min and sterilized in 1‰ Hg Cl2 for 5min. The best combinations of plant growth regulators were 1.0 mg/L 6-BA and 0.5mg/L NAA for the induction of callus, and the best combinations of hormones were1.0 mg/L KT and 0.5 mg/L NAA for differentiation rate of adventitious bud.
文摘Concrete is one of the most important building material and day by day the utilization of concrete is increasing to meet the infrastructure development requirement.On one hand it is unavoidable but some alternative to be explored to reduce the global environmental impact caused by the concrete.To overcome this from the last decade the world is looking towards the fact of sustainability due to rapid industrialization.The growth in the construction industry increased the demand of concrete as construction material.This concrete produces significant amount of greenhouse emission in the environment.There is a need to find an alternative solution to minimize the greenhouse emission emitted from the concrete manufacturing plant.Hempcrete is a building material prepared from hemp yarns,lime and water.This composite material has several beneficial properties like low in cost,easily available,thermal and acoustic insulation,low density and sustainable cause of no adverse impact of carbon footprint on production.In this study the properties and several benefits of the hempcrete were discussed in detail.
文摘收发组合作为无人机数据链系统的核心部件,其抗电磁干扰能力直接影响机载通信安全。为检验核电磁脉冲(HEMP)辐照条件下某型无人机数据链系统的可靠性,基于快沿电磁脉冲模拟系统建立了无人机HEMP效应试验平台,以典型"失锁"效应作为受干扰判别依据,开展了无人机数据链系统辐照效应研究,分析了无人机数据链"失锁"效应机理。结果表明:核电磁脉冲场强达到72 k V/m时能够对飞机数据链测试系统产生干扰,导致地面监视系统回报通信链路全部失锁、飞行控制模拟器黑屏,且收发组合放置姿态改变基本不影响数据链系统干扰阈值。通过电磁仿真分析发现,飞行控制模拟器端接电缆耦合外界强场信号使收发组合供电瞬时中断,进而导致数据链测试系统产生干扰。排除数据链测试系统中飞行控制模拟器,在辐照场强<90 k V/m情况下,无人机下行遥测链路不会出现失锁。
