UV-RESISTANT AND ALKALINE-RESISTANT BOROSILICATE GLASS AND USE THEREOF

Disclosed is a type of borosilicate glass, the composition of which, based on oxides, contains the following components by weight percentage (wt %): 2.0 wt %-5.0 wt % of TiO, 0.25 wt %-2.5 wt % of CeOand 0.25 wt %-3.0 wt % of YO, and does not contain any iron compound, such as ferric oxide. The glass has better UV resistance and alkaline resistance properties, and a better light transmission rate, and is particularly suitable for use in the field of pharmaceutical packaging materials. 1. A borosilicate glass comprising the following constituents based on oxide: 2.0-5.0 wt % of TiO , 0.25-2.5 wt % of CeO , 0.25-3.0 wt % of YO , wherein the borosilicate glass is free of an iron compound.2. The borosilicate glass of claim 1 , wherein the total amount of SiO claim 1 , TiO claim 1 , and CeOis not less than 72.0 wt %.3. The borosilicate glass of claim 1 , further comprising the following constituents: 65.0-75.0 wt % of SiO claim 1 , 6.0-12.0 wt % of BO claim 1 , 3.5-6.5 wt % of AlO; and the total amount of NaO claim 1 , KO and LiO is 5.5-9.5 wt %; and the total amount of CaO claim 1 , MgO and BaO is 1.0-5.5 wt %.4. The borosilicate glass of claim 1 , wherein the total amount of NaO claim 1 , KO and LiO is 5.5-9.5 wt %; the total amount of CaO claim 1 , MgO and BaO is 1.0-5.5 wt %; and the total amount of SiO claim 1 , TiOand CeOis not less than 72.0 wt %.5. The borosilicate glass of claim 1 , wherein the amount of CeOis 0.5-1.5 wt %.6. The borosilicate glass of claim 1 , wherein the amount of CeOis 0.5-1.5 wt % claim 1 , and the total amount of SiO claim 1 , TiO claim 1 , and CeOis not less than 72.0 wt %.7. The borosilicate glass of claim 1 , wherein the amount of CeOis 0.5-1.5 wt % claim 1 , the amount of SiOis 65.0-75.0 wt % claim 1 , the amount of BOis 6.0-12.0 wt % claim 1 , the amount of AlOis 3.5-6.5 wt %; and the total amount of NaO claim 1 , KO and LiO is 5.5-9.5 wt %; and the total amount of CaO claim 1 , MgO and BaO is 1.0-5.5 wt %.8. The borosilicate glass of ...

BOROSILICATE GLASS WITH HIGH CHEMICAL RESISTANCE AND APPLICATION THEREOF

The invention discloses a borosilicate glass with high chemical resistance and an application thereof. The borosilicate glass contains 0.25-4.0 wt % of Y2O3 based on the oxide. The borosilicate glass has a high chemical stability, a suitable linear thermal expansion coefficient and is suitable for use in the field of pharmaceutical packaging materials.

Network security protection method and protection device

This application provides a network security protection method and a protection device, and pertains to the field of communication technologies. The protection device implements adaptive switching between different detection modes based on application layer data of a data packet exchanged between a client device and a server in a session. This avoids a case in which a threat is missed when only a flow mode is used, and avoids a case in which a large quantity of unnecessary resources are occupied when only a proxy mode is used. Therefore, protection effect is improved.

Borosilicate glass with high chemical resistance and application thereof

Network security protection method and device

This application provides a network security protection method and a protection device, and pertains to the field of communication technologies. The protection device implements adaptive switching between different detection modes based on application layer data of a data packet exchanged between a client device and a server in a session. This avoids a case in which a threat is missed when only a flow mode is used, and avoids a case in which a large quantity of unnecessary resources are occupied when only a proxy mode is used. Therefore, protection effect is improved.

Network security protection method and protection device

This application provides a network security protection method and a protection device, and pertains to the field of communication technologies. When a client and a server exchange a packet in a first session, a protection device identifies an application layer protocol type based on application layer data in the packet in the first session, and if determining, based on the application layer protocol type, that a detection mode is a proxy mode, the protection device performs security detection on a subsequent packet in the first TCP session in the proxy mode. This breaks a technical bottleneck that the packet in the first TCP session can be detected in only a flow mode, ensures that the packet in the first TCP session can also be detected in the proxy mode, and avoids missing attack detection caused because the packet in the first TCP session is limited to the flow mode.

Network security protection method and device

Network security protection method and protection device

This application provides a network security protection method and a protection device, and pertains to the field of communication technologies. When a client and a server exchange a packet in a first session, a protection device identifies an application layer protocol type based on application layer data in the packet in the first session, and if determining, based on the application layer protocol type, that a detection mode is a proxy mode, the protection device performs security detection on a subsequent packet in the first TCP session in the proxy mode. This breaks a technical bottleneck that the packet in the first TCP session can be detected in only a flow mode, ensures that the packet in the first TCP session can also be detected in the proxy mode, and avoids missing attack detection caused because the packet in the first TCP session is limited to the flow mode.

Encrypted message detection method and protective device

Encrypted message detection method and protective device

This application pertains to the field of communication technologies. In this application, a process of performing SSL handshake between a protection device and a client device is associated with a process of performing SSL handshake between the protection device and a server. The protection device sends a same DH parameter to each of the client device and the server, and reuses DH parameters on the two sides when generating session keys, where the session key is used to decrypt an encrypted packet sent by the client device or the server, and encrypt plaintext data obtained after decryption and inspection. In embodiments of this application, a computation amount caused by DH parameter generation is reduced, and resource usage of a protection device such as a firewall is reduced. This greatly increases an SSL handshake speed, and improves performance of the protection device.

Uv-resistant and alkaline-resistant borosilicate glass and use thereof

Disclosed is a type of borosilicate glass, the composition of which, based on oxides, contains the following components by weight percentage (wt%): 2.0 wt%-5.0 wt% of TiO₂, 0.25 wt%-2.5 wt% of CeO₂and 0.25 wt%-3.0 wt% of Y₂O₃, and does not contain any iron compound, such as ferric oxide. The glass has better UV resistance and alkaline resistance properties, and a better light transmission rate, and is particularly suitable for use in the field of pharmaceutical packaging materials.