[Acupuncture with method by stages for menstrual headache based on syndrome differentiation: a randomized controlled trial].

Objective: To compare the clinical efficacy between acupuncture with method by stages based on syndrome differentiation and oral administration of ibuprofen sustained-release capsule in patients with menstrual headache.

Methods: A total of 90 cases with menstrual headache were randomly divided into an acupuncture group (45 cases, 1 case excluded, 3 cases dropped off) and a medication group (45 cases, 3 cases dropped off). The patients in the acupuncture group were treated with acupuncture with method by stages based on syndrome differentiation; during period of pain attacks, Ganshu (BL 18), Qimen (LR 14), Hegu (LI 4), Taichong (LR 3), Sizhukong (TE 23) through Shuaigu (GB 8) were selected, once a day; during period of pain relief, Qichong (ST 30), Dahe (KI 12), Guanyuan (CV 4), Taixi (KI 3) were selected, once every 1-2 days.

[Influence of laser energy on measurement of unburned carbon in fly Ash particle flow].

The fly ash particle flow was produced by a screw feeder and then ablated by a pulse laser to create plasma. The emission spectra of fly ash were detected by laser-induced breakdown spectroscopy. The present paper focused on the influence of laser energy on the measurement of unburned carbon.