Accuracy improvement of laser tracker registration based on enhanced reference system points weighting self-calibration and thermal compensation.

Improving the accuracy of large measurement systems consisting of multiple laser trackers and Enhanced Reference System (ERS) points is technically challenging. In practice, standard devices with precise distance limits are often used to improve the registration accuracy of laser trackers. However, these standard devices are expensive and need to be calibrated by the Coordinate Measuring Machine (CMM).

Effect of lentinan on membrane-bound protein expression in splenic lymphocytes under chronic low-dose radiation.

We investigated the protective effects of lentinan against damages to chronic and low-dose radiation (CL-radiation) by using mouse models. The mice were randomized divided into four groups: normal control mice (Ctr), mice exposed to radiation (Rad), irradiated mice treated with low-dose lentinan (0.1mg/(kg.

Dietary mineral sources altered lipid and antioxidant profiles in broiler breeders and posthatch growth of their offsprings.

The aim of this study was to investigate the influence of mineral sources on broiler breeders and their offsprings. Broiler breeding hens were fed with diets containing either organic or inorganic trace minerals at equal levels, i.e.

[A comparative study on safety and immunogenicity of an inactivated hepatitis A vaccine in HBsAg carriers and healthy children].

Objective: To evaluate safety and immunogenicity of inactivated hepatitis A vaccine in HBsAg carriers and healthy children.

Methods: One hundred and twenty-one healthy children and ten HBsAg carriers, aged 1-10 years HAV susceptible were enrolled in the study. The inactivated hepatitis A vaccine was produced by Tangshan Biogenetic Company.