Unlike traditional relational databases, YDBscales out, providing developers with the capability to simply extend clusters with computation or storage resources to handle increasing load. YDB has disaggregated storage and compute layers, which allow you to scale storage and compute resources independently....
大数据集的数据量巨大,单机无法存储与处理如此规模的数据量,只能依靠大规模集群以进行存储和处理,因此系统需要具备可扩展性。 目前主流的大数据存储与计算系统往往采用横向扩展(Scale Out)的方式。因此,对于待存储处理的海量数据,需要用过数据分片将数据进行切分,并分配到各服务器中。 数据分布的两条途径:复制& 分片 ...
Phylogenetically the LAB belong to the Clostridium branch of Gram positive bacteria. They are non-sporing, aero tolerant anaerobes that lack catalase and respiratory chain, with a DNA base composition of less than 53 mol% G+C [3,4]. According to their morphology LAB are divided to robs and...
Biotechnological ProductionBenzoic acid is exclusively chemically synthesized on an industrial scale. Toluene from petrochemical routes is oxidized in the presence of the catalyst potassium permanganate to benzoic acid . However, a recent study described for the first time a benzoic acid production process...
Its potential varies linearly with the logarithm of the oxygen ion concentration but the slope of the E /log [O 2- ] curve amounts to 2.303 RT/F rather than 2.303 RT/ 2 F. A trial is made to establish an acidity-basicity scale for fused oxyanions in molten KNO 3 at 350°C....
color White to Dark Brown Water Solubility 1g/L(18 ºC) Stability: Light Sensitive, Very Hygroscopic InChIKey CHTHALBTIRVDBM-UHFFFAOYSA-N LogP -1.43 at 20℃ CAS DataBase Reference 3238-40-2(CAS DataBase Reference) NIST Chemistry Reference Furan-2,5-dicarboxylic acid(3238-40-2) ...
Citric Acid Descaling Agent Limescale Remover Scale Dispenser Kettle Coffee Machine Cleaner Product Description Product name Citric Acid tea coffee limescale remover stain descaling reactive oxygen granule agent powder Color White Brand Transfar/ OEM / ODM...
A pair with neutral pH 7 represents the midpoint of the full scale, which is the boundary between TRUE and FALSE, or the value “0” when applicable. In some applications, we can further extend the encoding to a larger set of discrete values by controlling the concentration of the encoded...
CAS DataBase Reference2809-21-4(CAS DataBase Reference) FDA 21 CFR173.315 Substances Added to Food (formerly EAFUS)1-HYDROXYETHYLIDENE-1,1-DIPHOSPHONIC ACID EWG's Food Scores1-2 FDA UNIIM2F465ROXU ATC codeM05BA01 EPA Substance Registry SystemEtidronic acid (2809-21-4) ...
Scale bars, 50 μm (b, e). Data are mean ± s.e.m. P values are indicated; one-way ANOVA with Tukey’s post-hoc test in a–d; unpaired two-tailed t-test in e, f. Sample sizes and statistical analyses are shown in Supplementary Table ...