8.(Chemistry)chemgas constant 9.(Film) (in the US and Australia) a.restricted exhibition (used to describe a category of film certified as unsuitable for viewing by anyone under the age of 18) b.(as modifier):an R film. Collins English Dictionary – Complete and Unabridged, 12th Edition...
research i titute research in chemistry research methods for research methods in p research of burst mod research of digital a research of expert research of fair valu research of fuel cell research of fuzzy-pi research of ink-jet r research of knowledge research of mode iden research of nega...
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M Razavet - 《Dalton Transactions An International Journal of Inorganic Chemistry》 被引量: 0发表: 1999年 Synthesis of Enantiomerically Pure (1R,2S)- and (1S,2R)-2-Amino-1,2- bis(pentafluorophenyl)ethanols Enantiomerically pure (1R,2S)- and (1S,2R)-2-amino-1,2-bis(pentafluorophenyl)-...
radiation chemistry 辐射线化学radiation cure 辐射硫化radiation damage 辐照损伤radiation equilibrium 辐射平衡radiation hazard 放射危害radiation intensity 辐射强度radiation law 辐射律radiation loss 辐射损失radiation polymerization 辐照聚合radiation protection 辐射防护radiation pyrometer 辐射高温计radiation shield 辐射屏蔽...
Inverse estimation, also referred to as the calibration problem, is a classical and well-known problem in regression. In simple terms, it involves the use of an observed value of the response (or specified value of the mean response) to make inference on the corresponding unknown value of an...
In the sections that deal with the use of R for solving differential equations, we have taken examples from a variety of disciplines, including biology, chemistry, physics, pharmacokinetics. Many examples are well-known test examples, used frequently in the field of numerical analysis. ...
Furthermore, it has been studied for its role in the synthesis of chiral ligands and catalysts. Overall, (R,R)-(+)-HYDROBENZOIN is a valuable compound in the field of organic chemistry, with diverse applications and potential for further research. View more+ ...
means <- data.frame(mod1$parameters$mean, stringsAsFactors = FALSE) %>% rownames_to_column() %>% rename(Interest = rowname) %>% melt(id.vars = "Interest", variable.name = "Profile", value.name = "Mean") %>% mutate(Mean = round(Mean, 2), Mean = ifelse(Mean > 1, 1, Mean...
clean <- na.omit(data) # 替换特定值 data$Column[data$Column == "Value"] <- "New Value"...