Fusarium wilt and Verticillium wilt are important worldwide fungal diseases on cotton that cause damage to yield and quality.The pathogens survive in soil as microsclerotia for many years,and
Porous materials have promise as sound insulation, heat barrier, vibration attenuation, and catalysts. Most industrial solid wastes, such as tailings, coal gangue, and fly ash are rich in silicon. Additionally, a high...Porous materials have promise as sound insulation, heat barrier, vibration attenuation, and catalysts. Most industrial solid wastes, such as tailings, coal gangue, and fly ash are rich in silicon. Additionally, a high silicon content waste is a potential raw material for the syn- thesis of silicon-based, multi-porous materials such as zeolites, mesoporous silica, glass-ceramics, and geopolymer foams. Representative sil- icon-rich industrial solid wastes (SRISWs) are the focus of this mini review of the processing and application of porous silicon materials with respect to the physical and chemical properties of the SRISW. The transformation methods of preparing porous materials from SRISWs are summarized, and their research status in micro-, meso-, and macro-scale porous materials are described. Possible problems in the application of SRISWs and in the preparation of functional porous materials are analyzed, and their development prospects are discussed. This review should provide a typical reference for the recycling and use of industrial solid wastes to develop sustainable “green materials.”展开更多
A new breeding program"Creating new middle breedingmaterials by utilizing new techniques",cooperated byChina National Rice Research Institute (CNRRI)andJapan International Research Center for Agricultural Sc...A new breeding program"Creating new middle breedingmaterials by utilizing new techniques",cooperated byChina National Rice Research Institute (CNRRI)andJapan International Research Center for Agricultural Sci-ence(JIRCAS)",started in Hangzhou,China in 1999.展开更多
To study the 25Mg(p,y)^26 Al reaction at the Jinping Underground Nuclear Astrophysics laboratory,a large-area 25Mg target with a uniform thickness is needed.A rotating unit is used to ensure the uniformity of the targ...To study the 25Mg(p,y)^26 Al reaction at the Jinping Underground Nuclear Astrophysics laboratory,a large-area 25Mg target with a uniform thickness is needed.A rotating unit is used to ensure the uniformity of the target thickness during evaporation.After many attempts,19 targets with diameters of 40 mm and a non-uniformity of8.4%were prepared simultaneously.The rate of material utilization was approximately 4.7 times higher than that obtained using a conventional evaporation method.展开更多
Biopolymer-bound Soil Composites(BSC),are a novel bio-based construction material class,produced through the mixture and desiccation of biopolymers with inorganic aggregates with applications in soil stabilization,bri...Biopolymer-bound Soil Composites(BSC),are a novel bio-based construction material class,produced through the mixture and desiccation of biopolymers with inorganic aggregates with applications in soil stabilization,brick creation and in situ construction on Earth and space.This paper introduces a mixture design methodology to produce maximum strength for a given soil-biopolymer combination.Twenty protein and sand mix designs were investigated,with varying amounts of biopolymer solution and compaction regimes during manufacture.The ultimate compressive strength,density,and shrinkage of BSC samples are reported.It is observed that the compressive strength of BSC materials increases proportional to tighter particle packing(soil dry bulk density)and binder content.A theory to explain this peak compressive strength phenomenon is presented.展开更多
文摘Fusarium wilt and Verticillium wilt are important worldwide fungal diseases on cotton that cause damage to yield and quality.The pathogens survive in soil as microsclerotia for many years,and
基金National Natural Science Foundation of China(No.51774331)Funds for Nationsl&Local Joint Engineering Research Center of Mineral Salt Deep Utilization(No.SF202103).
文摘Porous materials have promise as sound insulation, heat barrier, vibration attenuation, and catalysts. Most industrial solid wastes, such as tailings, coal gangue, and fly ash are rich in silicon. Additionally, a high silicon content waste is a potential raw material for the syn- thesis of silicon-based, multi-porous materials such as zeolites, mesoporous silica, glass-ceramics, and geopolymer foams. Representative sil- icon-rich industrial solid wastes (SRISWs) are the focus of this mini review of the processing and application of porous silicon materials with respect to the physical and chemical properties of the SRISW. The transformation methods of preparing porous materials from SRISWs are summarized, and their research status in micro-, meso-, and macro-scale porous materials are described. Possible problems in the application of SRISWs and in the preparation of functional porous materials are analyzed, and their development prospects are discussed. This review should provide a typical reference for the recycling and use of industrial solid wastes to develop sustainable “green materials.”
文摘A new breeding program"Creating new middle breedingmaterials by utilizing new techniques",cooperated byChina National Rice Research Institute (CNRRI)andJapan International Research Center for Agricultural Sci-ence(JIRCAS)",started in Hangzhou,China in 1999.
基金supported by the National Natural Science Foundation of China(Nos.11490563,11575292 and 11205247)the National Key Research and Development Project(No.2016YFA0400502)Continuous Basic Scientific Research Project(No.WDJC-2019-13)。
文摘To study the 25Mg(p,y)^26 Al reaction at the Jinping Underground Nuclear Astrophysics laboratory,a large-area 25Mg target with a uniform thickness is needed.A rotating unit is used to ensure the uniformity of the target thickness during evaporation.After many attempts,19 targets with diameters of 40 mm and a non-uniformity of8.4%were prepared simultaneously.The rate of material utilization was approximately 4.7 times higher than that obtained using a conventional evaporation method.
文摘Biopolymer-bound Soil Composites(BSC),are a novel bio-based construction material class,produced through the mixture and desiccation of biopolymers with inorganic aggregates with applications in soil stabilization,brick creation and in situ construction on Earth and space.This paper introduces a mixture design methodology to produce maximum strength for a given soil-biopolymer combination.Twenty protein and sand mix designs were investigated,with varying amounts of biopolymer solution and compaction regimes during manufacture.The ultimate compressive strength,density,and shrinkage of BSC samples are reported.It is observed that the compressive strength of BSC materials increases proportional to tighter particle packing(soil dry bulk density)and binder content.A theory to explain this peak compressive strength phenomenon is presented.
