Abstract: A projection objective of a microlithographic projection apparatus comprises a wavefront correction device (42) comprising a mirror substrate (44; 44a, 44b) that has two opposite optical surfaces (46, 48), through which projection light passes, and a circumferential rim surface (50) extending between the two optical surfaces (46, 48). A first and a second optical system (OS1, OS2) are configured to direct first and second heating light (HL1, HL2) to different portions of the rim surface (50) such that at least a portion of the first and second heating light enters the mirror substrate (44; 44a, 44b). A temperature distribution caused by a partial absorption of the heating light (HL1, HL2) results in a refractive index distribution inside the mirror substrate (44; 44a, 44b) that corrects a wavefront error.

Abstract: A mirror arrangement for an EUV projection exposure apparatus for microlithography comprises a plurality of mirrors each having a layer which is reflective in the EUV spectral range and to which EUV radiation can be applied, and having a main body. In this case, at least one mirror of the plurality of mirrors has at least one layer comprising a material having a negative coefficient of thermal expansion. Moreover, a method for operating the mirror arrangement and a projection exposure apparatus are described. At least one heat source is arranged, in order to locally apply heat in a targeted manner to the at least one layer having a negative coefficient of thermal expansion of the at least one mirror.

Abstract: A reflective optical element for a microlithographic projection exposure apparatus, a mask inspection apparatus or the like. The reflective optical element has an optically effective surface, an element substrate (12, 32, 42, 52), a reflection layer system (14, 34, 44, 54) and at least one deformation reduction layer (15, 35, 45, 55, 58). When the optically effective surface (11, 31, 41, 51) is irradiated with electromagnetic radiation, a maximum deformation level of the reflection layer system is reduced in comparison with a deformation level of an analogously constructed reflective optical element without the deformation reduction layer.

Abstract: A film element of an EUV-transmitting wavefront correction device is arranged in a beam path and includes a first layer of first layer material having a first complex refractive index n1=(1??1)+i?1, with a first optical layer thickness, which varies locally over the used region in accordance with a first layer thickness profile, and a second layer of second layer material having a second complex refractive index n2=(1??2)+i?2, with a second optical layer thickness, which varies locally over the used region in accordance with a second layer thickness profile. The first and second layer thickness profiles differ. The deviation ?1 of the real part of the first refractive index from 1 is large relative to the absorption coefficient ?1 of the first layer material and the deviation ?2 of the real part of the second refractive index from 1 is small relative to the absorption coefficient ?2 of the second layer material.

Abstract: Extending a plurality of manageability capabilities of manageable information technology (IT) resources utilize an “aspect of” association for describing a relationship between a first object representing a manageable resource playing a role of a subject and one or more additional objects each playing a role of an aspect. The “aspect of” association establishes an overall manageability function for the first object representing a manageable resource and the one or more additional objects as a logical composition of a plurality of manageability capabilities. The manageability capabilities are provided using distinct implementation classes for supporting a specific role, and for supporting management-discipline related aspects and behaviors needed by each of a plurality of resource management applications for managing the manageable resource. The one or more additional objects have an aspect life cycle that is bounded maximally by a subject lifecycle of the first manageable resource.

Abstract: A method for measuring performance of system. The method includes the steps of retrieving a metric definition from a declarative metrics specification, obtaining a list of computing nodes from a database that are currently assigned to the metric definition, obtaining resource data provided by the computing nodes in the list of computing nodes and determining the metric of system performance based on the metric definition and the resource data. The computing nodes in the list of computing nodes are nodes of a cluster of nodes having a dynamically varying node count.

Abstract: A system and method for automated design deployment for distributed applications includes providing a node with at least one requirement attribute in an application description. A repository for infrastructure elements is searched for candidate infrastructure elements for that satisfy the at least one requirement attribute. A candidate infrastructure element that best satisfies the at least one requirement attribute in the application description is substituted in place of the node with the at least one requirement attribute.

Abstract: A first aspect addresses a method and device for making a media file accessible via a web page. First, a web design tool receives a media file to be made accessible via a web page. Then, said media file is sent to a streaming service provider. Subsequently, a key generated by said streaming service provider allowing to unambiguously identifying said sent media file is received and an identifier derived from said key is placed into the web page through which the media file should be accessed. A second aspect addresses a method and device installed at the streaming service provider's side for serving a user's request for hosting a media file to be streamed to a visitor's computer on its request.

Abstract: A method and system are provided for enhancing streaming operation in a distributed communication system providing communication links between a plurality of stream servers, a client machine requesting a particular media file, and, a stream server selection unit. First, a list of stream servers is retrieved. Then, the list is evaluated and one of the stream servers is selected as the best-suited stream server. Finally, streaming from the selected stream server is initiated.

Abstract: Extending a plurality of manageability capabilities of manageable information technology (IT) resources utilize an “aspect of” association for describing a relationship between a first object representing a manageable resource playing a role of a subject and one or more additional objects each playing a role of an aspect. The “aspect of” association establishes an overall manageability function for the first object representing a manageable resource and the one or more additional objects as a logical composition of a plurality of manageability capabilities. The manageability capabilities are provided using distinct implementation classes for supporting a specific role, and for supporting management-discipline related aspects and behaviors needed by each of a plurality of resource management applications for managing the manageable resource. The one or more additional objects have an aspect life cycle that is bounded maximally by a subject lifecycle of the first manageable resource.

Abstract: Media Distribution within the Internet is done with the help of Application-Servers, Content-Servers and distributed Edge-Servers where the clients are connected to Media Distribution Services. A computer system is provided comprising client 1, having a Web browser with a media player 2, Web application server 3, content server, edge servers ES1 to ES4 and media request broker 11. After the client 1 has selected a media for streaming the media request broker 11 makes a determination concerning an appropriate edge server to perform the streaming operation. This determination is made based on an extension of the client's http request made by the edge server and passed from the application server to the media request broker.

Abstract: Media Distribution within the Internet is done with the help of Application-Servers, Content-Servers and distributed Edge Servers where the clients are connected to Media Distribution Services. A computer system is provided comprising a client having a Web browser with a media player, a Web Application Server, content Edge Servers ES1 to ES4 and a Media Request Broker. After the client has selected a media for streaming, the Media Request Broker makes a determination concerning an appropriate Edge Server to perform the streaming operation. This determination is made based on an extension of the client's http request made by the Edge Server and passed from the Application Server to the Media Request Broker.

Abstract: A method for measuring performance of system. The method includes the steps of retrieving a metric definition from a declarative metrics specification, obtaining a list of computing nodes from a database that are currently assigned to the metric definition, obtaining resource data provided by the computing nodes in the list of computing nodes and determining the metric of system performance based on the metric definition and the resource data. The computing nodes in the list of computing nodes are nodes of a cluster of nodes having a dynamically varying node count.

Abstract: A system and method for automated design deployment for distributed applications includes providing a node with at least one requirement attribute in an application description. A repository for infrastructure elements is searched for candidate infrastructure elements for that satisfy the at least one requirement attribute. A candidate infrastructure element that best satisfies the at least one requirement attribute in the application description is substituted in place of the node with the at least one requirement attribute.

Abstract: The present invention describes a new system and method for modeling and dynamically deploying services into a distributed networking architecture, especially in a service-oriented architecture. The service container being part of distributed networking architecture exposes its functionality as services. It provides a registration service for deploying service descriptions. Having created a new service description in any declarative description language (i.e. a description of a (stateful) service e.g. a stateful Web service), the description provider invokes the registration service at the service container that allows to register (i.e. deploy) that new service description during runtime without restarting service container. The service container is responsible to analyze and check the submitted new service description for validity, to store the service description and to make it available for interested services consumers for instantiation.

Abstract: A first aspect addresses a method and device for making a media file accessible via a web page. First, a web design tool receives a media file to be made accessible via a web page. Then, said media file is sent to a streaming service provider. Subsequently, a key generated by said streaming service provider allowing to unambiguously identifying said sent media file is received and an identifier derived from said key is placed into the web page through which the media file should be accessed. A second aspect addresses a method and device installed at the streaming service provider's side for serving a user's request for hosting a media file to be streamed to a visitor's computer on its request.

Abstract: Media Distribution within the Internet is done with the help of Application-Servers, Content-Servers and distributed Edge-Servers where the clients are connected to Media Distribution Services. A computer system is provided comprising client 1, having a Web browser with a media player 2, Web application server 3, content server, edge servers ES1 to ES4 and media request broker 11. After the client 1 has selected a media for streaming the media request broker 11 makes a determination concerning an appropriate edge server to perform the streaming operation. This determination is made based on an extension of the client's http request made by the edge server and passed from the application server to the media request broker.

Abstract: According to the present invention a method and a system is provided for organizing access and control from a user to an appliance via a distributed information system by employing a mediator. First a message is received from the user containing a generic command, which is then converted into an appliance specific command. Subsequently, the appliance specific command is sent to the appliance to be processed and a response message is received from the appliance. Finally, the response message is converted into a generic format and sent back to the user. The present invention provides an easy-to-use interface for users to all their pervasive home network devices.

Abstract: According to the present invention a Pervasive Home Network Appliance (appliance) is provided for controlling of home devices in a home network, whereby such appliance may also be accessed automatically or via an additional interface, such as by a cellular (mobile) phone or an Internet browser. The pervasive home network appliance may be implemented by a method and an appliance for facilitating communication between a user interface and one or more external devices. The appliance comprises at least one control adapter for transforming a particular communication protocol to be established between the user interface and at least one of the control adapters, one or more device adapters for transforming a particular communication protocol to be established between one of the external devices and the respective one of the device adapters and a routing engine for routing messages being produced by one of the control adapters to the appropriate one of the device adapters.

Abstract: A method and system are provided for enhancing streaming operation in a distributed communication system providing communication links between a plurality of stream servers, a client machine requesting a particular media file, and, a stream server selection unit. First, a list of stream servers is retrieved. Then, the list is evaluated and one of the stream servers is selected as the best-suited stream server.