摘要:
An air conditioning system for a semiconductor clean room includes a chemical filter between an air conditioner including a humidifier and a ULPA filter of the clean room, for ionizing chemical impurities using moisture supplied from the humidifier and then adsorbing the ionized chemical impurities by using the chemical filter. The chemical filter is installed downstream of the humidifier, which applies phosphoric acid for the prevention of scale-formation. This downstream location allows the chemical filter to prevent the phosphoric acid from being included in the fresh air as a new chemical impurity, which makes regulation of temperature and humidity of the air possible without having to use a special and expensive pure steam system.
摘要:
The present invention relates to a hyaluronic acid producing strain Streptococcus sp. KL0188 and a method for purifying hyaluronic acid, more particularly to a Streptococcus sp. KL0188 that does not express hyaluronidase and is non-hemolytic, and a method for purifying hyaluronic acid using an aromatic adsorption resin and an active carbon.
摘要:
The present invention relates to a hyaluronic acid producing strain Streptococcus sp. KL0188 and a method for purifying hyaluronic acid, more particularly to a Streptococcus sp. KL0188 that does not express hyaluronidase and is non-hemolytic, and a method for purifying hyaluronic acid using an aromatic adsorption resin and an active carbon.
摘要:
There are provided a remote communication apparatus including a security function and a remote electric power metering system using the same. The remote communication apparatus including a security function includes: a security algorithm application unit decrypting a receiving signal received from a communication network in the case in which the receiving signal is an encrypted signal and encrypting a transmitting signal to be transmitted to the communication network; and a protocol unit converting the receiving signal or the receiving signal decrypted by the security algorithm application unit according to a preset communication protocol and generating the transmitting signal according to the preset communication protocol.