Hardened hydraulic cement, ceramic or coarse concrete aggregate
High performance composite membrane
High porosity carbon coated cigarette papers
Highly anisotropic membranes
Highly selective asymmetric membranes for gas separation and met
Hybrid inorganic-organic composite for use as an interlayer diel
Hydrogen separation membrane and process for producing the same
Hydrophilic porous membrane, method of manufacturing the same an
Hydrophilized membrane of porous hydrophobic material and proces