The high frequency switch-mode power supply focused by this subject mainly used in galvanoplastics(NDF), electrification(NCF), electrical chemistry(NHF), and excitation(NLF).
Objective To observe the nucha electrical acupuncture Intervening at early times preventing the occurrence of poststroke depression(PSD)in acute cerebral infarction(ACI)patients.
High precision instruments of measuring electrical resistivity and magnetoresistivity are needed to study the inner structure and resistance characteristic of nanocrystalline materials.
The plane with 228 people on board disappeared from redar's screen radar screens after in countering interbulance encountering turbulence and reporting electrical problems.