The use of the human pulse signal for medical diagnosis is a mainstay in the practice of traditional Chinese medicine. Computer processing of this signal may be used to automate diagnostic procedures and to reveal sources of information in the waveform that have been used by both eastern and western physicians for more than two millennia. A new method for preprocessing of the human pulse signa…
Supercapacitors are intermediate devices between conventional batteries and dielectric capacitors that can be used in various electric systems. [ 1] The pseudo-capacitors have drawn great attentions because of their intrinsic properties of fast and reversible surface redox reactions that enable high charge storage capacities greater than double-layer supercapacitors. Besides, a main attraction …
Abstract. In current study, nanowhisker-like NiO/carbon aerogel microbead (NiO/CAMB) composites with chestnut-like coreeshell structure are prepared by in situ encapsulating method. The structure and morphology of NiO/CAMB are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Results indicate that the appearance of compo…
Abstract. Carbon aerogel (CA) microspheres have been successfully synthesized by an inverse emulsion polymerization and characterized by scanning electron microscopy (SEM), N2 sorption isotherm and X-ray diffraction (XRD). The results show that the size and pore characteristics of carbon microsphere obviously depend on stirring speed and concentration of surfactant in the emulsion polymeriz…
Abstract. A graphene–C60 hybrid material has been synthesized using a chemical coupling method between graphene oxide and pyrrolidine fullerene. The formation of this hybrid material was verified by Fourier transform infrared spectroscopy, thermal gravimetric analysis and high-resolution transmission electron microscopy. Raman spectroscopy suggests a strong interaction between the C60 cage a…
Abstract. Composites based on graphene-based sheets have been fabricated by incorporating solution- processable functionalized graphene into an epoxy matrix, and their electromagnetic interference (EMI) shielding studies were studied. The composites show a low percolation threshold of 0.52 vol.%. EMI shielding effectiveness was tested over a frequency range of 8.2–12.4 GHz (X-band), and …
Abstract. Keggin-type heteropolyanion H3PMo12O40 encapsulated by a cationic surfactant dioctadecyldimethylammonium chloride (DODA·Cl) has been assembled on ITO substrates using an electrophoretic approach. The films were characterized by atomic force microscopy (AFM), scanning electron microscopy (SEM), IR spectra, X-ray photoelectron spectra (XPS) and cyclic voltammetry. The AFM images ex…
Abstract. Flocs generated in various aluminum coagulants treatment exhibit difference in size, strength and structure. The formation, breakage and re-formation of flocs were investigated by using a laser diffraction instrument (Malvern Mastersizer 2000, Malvern, UK). Different Al coagulants – conventional Al salt (AlCl3), polyaluminum chloride (PAC-1) and the purified polyaluminum chlorid…
A total of 85 Chinese Cymbidiums and one Zygopetalum were collected and analysed using 29 simple sequence repeats (SSRs) and 12 intersimple sequence repeats (ISSRs). These Chinese Cymbidiums are some of the most popular cultivars in market. The pairwise genetic distance between these accessions averaged 0.897, ranging from 0.259 to 1.000. A model-based clustering analysis revealed five genetic …