Interestingly, black currants are also an excellent source of phytochemicals that exhibit antimicrobial properties. These phytochemicals can be isolated from the fruit for use as antimicrobial agents in cosmetic and personal care products. The desire for alternatives to traditional preservatives is not novel, however the notion of an antimicrobial with a secondary active that provides value add…
WANs usually cover a geographical area of tens to thousands of kilometers,and are able to connect multiple cities or countries, or span several continents andmeanwhile provide long-distance communication, thus forming an internationalremote network. For example, an enterprise has two LANs in Beijing andShanghai, and when these two LANs are connected, a WAN is created. Gener-ally, WAN requires t…