摘要:
A port based peer access control method, comprises the steps of: 1) enabling the authentication control entity; 2) two authentication control entities authenticating each other; 3) setting the status of the controlled port. The method may further comprise the steps of enabling the authentication server entity, two authentication subsystems negotiating the key. By modifying the asymmetry of background technique, the invention has advantages of peer control, distinguishable authentication control entity, good scalability, good security, simple key negotiation process, relatively complete system, high flexibility, thus the invention can satisfy the requirements of central management as well as resolve the technical issues of the prior network access control method, including complex process, poor security, poor scalability, so it provides essential guarantee for secure network access.
摘要:
An access authentication method includes pre-establishing a security channel between the authentication server of the access point and the authentication server of the user terminal and performing the authentication process at user terminal and access point. The authentication process includes 1) the access point sending the authentication_activating message; 2) the user terminal sending the authentication server of user terminal request message; 3) the authentication server of the user terminal sending to the user terminal response message; and 4) completing the authentication.
摘要:
A port based peer access control method, comprises the steps of: 1) enabling the authentication control entity; 2) two authentication control entities authenticating each other; 3) setting the status of the controlled port. The method may further comprise the steps of enabling the authentication server entity, two authentication subsystems negotiating the key. By modifying the asymmetry of background technique, the invention has advantages of peer control, distinguishable authentication control entity, good scalability, good security, simple key negotiation process, relatively complete system, high flexibility, thus the invention can satisfy the requirements of central management as well as resolve the technical issues of the prior network access control method, including complex process, poor security, poor scalability, so it provides essential guarantee for secure network access.
摘要:
An access authentication method includes pre-establishing a security channel between the authentication server of the access point and the authentication server of the user terminal and performing the authentication process at user terminal and access point. The authentication process includes 1) the access point sending the authentication_activating message; 2) the user terminal sending the authentication server of user terminal request message; 3) the authentication server of the user terminal sending to the user terminal response message; and 4) completing the authentication.
摘要:
A method and device for treating a mammalian organism to obtain a desired local or systemic physiological or pharmacological effect is provided. The method includes administering a sustained release drug delivery system to a mammalian organism in need of such treatment at an area wherein release of an effective agent is desired and allowing the effective agent to pass through the device in a controlled manner. The device includes an inner core or reservoir including the effective agent, an impermeable tube which encloses portions of the reservoir, and a permeable member at an end of the tube.
摘要:
A method and device for treating a mammalian organism to obtain a desired local or systemic physiological or pharmacological effect is provided. The method includes administering a sustained release drug delivery system to a mammalian organism in need of such treatment at an area wherein release of an effective agent is desired and allowing the effective agent to pass through the device in a controlled manner. The device includes an inner core or reservoir including the effective agent, an impermeable tube which encloses portions of the reservoir, and a permeable member at an end of the tube.
摘要:
An injectable drug delivery device includes a core containing one or more drugs and one or more polymers. The core may be surrounded by one or more polymer outer layers (referred to herein as “coatings,” “skins,” or “outer layers”). In certain embodiments, the device is formed by extruding or otherwise preforming a polymeric skin for a drug core. The drug core may be co-extruded with the skin, or inserted into the skin after the skin has been extruded, and possibly cured. In other embodiments, the drug core may be coated with one or more polymer coatings. These techniques may be usefully applied to fabricate devices having a wide array of drug formulations and skins that can be selected to control the release rate profile and various other properties of the drugs in the drug core in a form suitable for injection using standard or non-standard gauge needles. The device may be formed by combining at least one polymer, at least one drug, and at least one liquid solvent to form a liquid suspension or solution wherein, upon injection, such suspension or solution under goes a phase change and forms a gel. The configuration may provide for controlled release of the drug(s) for an extended period.
摘要:
The invention provides a trocar assembly for delivering a payload into tissue, such as an eye, comprising a primary housing, a cannula, a payload, an actuator and a trocar.
摘要:
A method and calculator for obtaining spin polarized quantum transport in 3-dimensional atom-scale spintronic (spin electronics) devices under finite bias voltage, based on implementing Density Function Theory (DFT) in combination with the Keldysh non-equilibrium Greens function (NEGF) formalism to calculate spin polarized quantum transport in 3-dimensional nanostructures under finite bias and external voltage.
摘要:
The invention provides a biodegradable drug-eluting particle useful for the delivery of diagnostic or therapeutic agents. In certain embodiments, the drug-eluting particle of the invention comprises a biodegradable porous silicon body, a reservoir formed within the porous silicon body having at least one opening to an exterior of the body, wherein the reservoir contains a therapeutic or diagnostic agent, and an agent-permeable seal disposed over the at least one opening. The invention further provides a method for treating a patient to obtain a desired local or systemic physiological or pharmacological effect comprising administering a sustained release drug delivery particle of the invention. The invention also provides methods of fabricating a drug-eluting particle for releasing therapeutic agents