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Biomedical subjects

R Hua

Publications and source records attributed to R Hua.

9 recordsLinked to original sources
PubMed2006

Ultrafast noncollinear optical parametric chirped pulse amplification in KTiOAsO4.

Amplification of femtosecond pulses at 1.56 microm based on noncollinear parametric chirped pulse amplification in a potassium titanyl arsenate (KTA) crystal with pumping at 1.05 microm is reported. The 100 fs pulses of an erbium fiber laser are parametrically amplified while synchronously pumped by an amplified mode-locked Nd:YLF laser. This amplifier has a saturated gain of 65 dB with 30% conversion efficiency and has produced 160 fs pulses with peak powers of up to 0.75 GW. The system produced 380 mW before compression and can be readily scaled to the multiwatt range with bandwidths to support sub-100 fs pulses.

Journal Article↗
PubMed2001

[Contents analysis of zinc, manganese, copper and iron in 7 kinds of treatment gastritis Chinese traditional medicines].

The contents of Zn, Mn, Cu and Fe in 7 kinds of treatment gastritis Chinese traditional medicines are determined by FAAS. The results show that element Fe in medicines is very rich, but element Cu is lower. The relationship between trace elements and the factor that causes gastritis is discussed. It provides useful reference data for discussing the relations of trace elements and treatment of gastroenteritis.

Copper↗
PubMed2001

[Analysis of the contents of Zn, Cu, Fe, Mn and Ni in suxiaoweiningchongji].

The contents of Zn, Cu, Fe, Mn and Ni in five groups of Suxiaoweiningchongii were determined by AAS. The results showed that he Fe content is the highest and Cu is the lowest, and the reduced order of contents from highest to lowest is Fe to Zn to Mn to Ni to Cu. The relationship between the trace elements in Suxiaoweiningchongji and the curative effect was discussed.

Copper↗
PubMed2000

[Determination of trace elements Fe, Cr, Co and Ni in serum of middle-aged and aged people with slight and severe diabetes].

The contents of trace elements Fe, Cr, Co and Ni in serum of middle-aged and aged people with slight and severe diabetes were determined and compared with the control group. The results showed that the concentrations of Fe and Cr of the case groups were lower than those of the control group, and there was a significant difference between the two case groups (P < 0.01). The content of Ni was lowered during the initial stage of diabetes, and changed into normal gradually. There was significant difference between group of higher blood sugar and the control group (P < 0.05), and even more significant difference between the two case groups(P < 0.01). The content of Co rose with the patient's condition worsened, but there was no statistical significance (P < 0.05).

Adult↗
PubMed1999

[Analysis of 4 metal elements in 11 kidney tonic Chinese traditional medicines].

The contents of Zn, Cd, K and Na in 11 kidney tonic Chinese traditional medicines usually used in clinical practice were determined by FAAS. The results showed that element Zn, which is closely related to yang deficiency of the kidney, and the macro elements K and Na, which are essential to human-body, are very rich, but element Cd is lower. The relations between trace elements and the therapeutic efficacy were discussed, and it is concluded that the results are in agreement with clinical usage of medicines by herbalists.

Cadmium↗
PubMed1998

Cardiac hemangioendothelioma.

A 42-year-old man with a rare huge primary cardiac hemangioendothelioma that arose from the right atrium is reported. With review of literature, the pathological character, the diagnostic images given by transesophageal echocardiography and magnetic resonance imaging and surgical treatment are discussed.

Adult↗