The present invention relates to synthetic green tea derived polyphenolic compounds, their modes of syntheses, and their use in inhibiting proteasomal activity and in treating cancers. The present invention is also directed to pharmaceutical compositions useful in methods of inhibiting proteasomes a.....
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1、 等离子点火系统中： 等离子喷枪采用目前国际先进的管状等离子发生器，它属于旋气稳定压缩的等离子发生器。从热效率角度看，管弧等离子发生器比同轴磁稳式等离子发生器的热效率高10%左右，管状电弧加热器的电极烧损率低、电极寿命长、气流污染小。供电装置采用IGBT晶体管整流电源，功率因数可以达到0.95以上，最大限度减少电网中的无功功率，同时最大程度的减少对电网的谐波干扰。煤粉燃烧器采用多级浓缩方式。各级浓缩器之间的距离可以进行调整，从而保证了煤粉的浓缩效果，达到等离子点火最合适的煤粉浓度。等离子喷枪与煤粉燃烧器同轴，保证等离子喷枪电弧火焰与煤粉运动具有相同的轴向方向，同时还能够卷吸煤粉，使等离子喷.....
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New methods for preparing analogues of qinghaosu (QHS, or artemisinin) and synthetic trioxane derivatives are developed. These new derivatives which have attached DNA-ligating groups are capable of aligning the trioxane nucleus proximate to specified base sequences in DNA. Despite the idea of combin.....
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The non-invasive detection of fetal chromosomal aneuploidies is demonstrated. Alleles of fetal RNA-SNPs present in a biological sample (e.g. maternal blood) containing fetal RNA are detected and quantified in order to determine the ratio of the alleles. This ratio is compared to a standard control.....
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Bone defect repair is popular yet a challenging orthopaedic surgery involving trauma, osteoporotic fracture, or osteonecrosis (ON). In the United States, steroid-associated ON alone affects approximately 20,000 new patients per year, whereas the prevalence of ON patients in China may be 5 or more ti.....
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