一个真正意义上的电子商务应当包含网络商务(B to B)、客户管理(CRM)、供应商管理(SCM),企业内部管理(ERP)四大系统,企业当前首要的目标就是要实现企业内部管理与ERP系统的整合,实现资源充分有效的利用、提高企业各环节的运作效率、降...一个真正意义上的电子商务应当包含网络商务(B to B)、客户管理(CRM)、供应商管理(SCM),企业内部管理(ERP)四大系统,企业当前首要的目标就是要实现企业内部管理与ERP系统的整合,实现资源充分有效的利用、提高企业各环节的运作效率、降低成本和承诺按时交货的保证。现在,我们就来分析一下ERP技术在电力物资管理系统中的作用,并具体提出一些观点,希望能够给相关从业人员一些启示。展开更多
The present study was designed to further investigate the C_(21) steroidal glycosides in Cynanchum plants.Two new steroidal glycosides based on a 13,14:14,15-disecopregnane-type aglycone,komaroside P(1) and komaroside...The present study was designed to further investigate the C_(21) steroidal glycosides in Cynanchum plants.Two new steroidal glycosides based on a 13,14:14,15-disecopregnane-type aglycone,komaroside P(1) and komaroside Q(2),together with three known compounds(3-5) were isolated from the whole herbs of Cynanchum komarovii.The aglycones of compounds 1 and 2 were two new disecopregnane.Their structures were elucidated on the basis of 1 D,2 D NMR spectroscopic data and acid hydrolysis.All the compounds(1-5) showed potent inhibitory activities against human leukemia cell lines(HL-60) with IC50 values ranging from 16.6 to 26.3 μmol·L^(-1),compared to the positive control 5-fluorouracil(6.4 μmol·L^(-1)).展开更多
文摘一个真正意义上的电子商务应当包含网络商务(B to B)、客户管理(CRM)、供应商管理(SCM),企业内部管理(ERP)四大系统,企业当前首要的目标就是要实现企业内部管理与ERP系统的整合,实现资源充分有效的利用、提高企业各环节的运作效率、降低成本和承诺按时交货的保证。现在,我们就来分析一下ERP技术在电力物资管理系统中的作用,并具体提出一些观点,希望能够给相关从业人员一些启示。
基金supported by the National Natural Science Foundation of China(No.31370375)
文摘The present study was designed to further investigate the C_(21) steroidal glycosides in Cynanchum plants.Two new steroidal glycosides based on a 13,14:14,15-disecopregnane-type aglycone,komaroside P(1) and komaroside Q(2),together with three known compounds(3-5) were isolated from the whole herbs of Cynanchum komarovii.The aglycones of compounds 1 and 2 were two new disecopregnane.Their structures were elucidated on the basis of 1 D,2 D NMR spectroscopic data and acid hydrolysis.All the compounds(1-5) showed potent inhibitory activities against human leukemia cell lines(HL-60) with IC50 values ranging from 16.6 to 26.3 μmol·L^(-1),compared to the positive control 5-fluorouracil(6.4 μmol·L^(-1)).