Abstract: Closed loop wellbore configurations with unrestricted geometry for accommodating irregular or challenging thermal gradients within a thermally productive formation are disclosed. A working fluid is utilized in the loop for extraction of thermal energy there from. The loop and the unrestricted geometry are achieved using magnetic ranging of independent drilling operations which intersect from an inlet well and outlet well to form an interconnecting segment. In conjunction with the directional drilling, conditioning operations are incorporated to condition the rock face, cool the entire system, activate the wellbore for treatment to optimize thermal transfer inter alia. The significant degree of freedom in wellbore configuration is further optimized by the absence of mechanical impediments such as casing or liners in the heat transfer areas.

Abstract: Metal powder particles for use in additive manufacturing are made by removing material from the surface of the particles using wet chemical etching to create a nanoscale texturing of the surface, increasing absorptivity by the metal powder particles of incident laser light and maintaining flowability. The nanoscale texturing has sub-wavelength features at laser wavelengths in the range 800-1100 nm. The particles are substantially spherical and have mean diameters in the range 10-70 ?m.

Abstract: Closed loop wellbore configurations with unrestricted geometry for accommodating irregular or challenging thermal gradients within a thermally productive formation are disclosed. A working fluid is utilized in the loop for extraction of thermal energy there from. The loop and the unrestricted geometry are achieved using magnetic ranging of independent drilling operations which intersect from an inlet well and outlet well to form an interconnecting segment. In conjunction with the directional drilling, conditioning operations are incorporated to condition the rock face, cool the entire system, activate the wellbore for treatment to optimize thermal transfer inter alia. The significant degree of freedom in wellbore configuration is further optimized by the absence of mechanical impediments such as casing or liners in the heat transfer areas.

Abstract: A driveshaft (130, 330) for outdoor power equipment (300) may include a power head interface assembly (340) configured to operably couple the driveshaft (130, 330) to a power head (110, 310) of the outdoor power equipment (300), an attachment interface assembly (342) configured to operably couple the driveshaft (130, 330) to a cutting attachment (120, 320) of the outdoor power equipment (300), an external casing rigidly coupling the power head interface assembly (340) to the attachment interface assembly (342), and a segmented internal drive assembly (360) configured to provide mechanical communication of mechanical power from the power head (110, 310) to the cutting attachment (120, 320). The segmented internal drive assembly (360) may include individually electrically insulated segments.

Abstract: Some embodiments provide API (Application Programming Interface) authorization platform that allows API-authorization policy stacks to be created and enforced. Policy stacks (called “stacks”) define API-authorization policies across different sets of managed resources in a workspace. A stack in some embodiments defines a uniform set of one or more API-authorization policies for multiple different sets of resources so that the set of policies do not have to be specified independently for each set of resources. By instituting common policies across multiple managed resource sets (also called managed systems), stacks can be used to guarantee uniform baseline policies for the workspace.

Abstract: Some embodiments of the invention provide a system for defining, distributing and enforcing policies for authorizing API (Application Programming Interface) calls to applications executing on one or more sets of associated machines (e.g., virtual machines, containers, computers, etc.) in one or more datacenters. This system has a set of one or more servers that acts as a logically centralized resource for defining and storing policies and parameters for evaluating these policies. The server set in some embodiments also enforces these API-authorizing policies. Conjunctively, or alternatively, the server set in some embodiments distributes the defined policies and parameters to policy-enforcing local agents that execute near the applications that process the API calls. From an associated application, a local agent receives API-authorization requests to determine whether API calls received by the application are authorized.

Abstract: Some embodiments provide a method gaining insight into applicability of policies that authorize access to at least one service through application programming interface (API) calls by a plurality of users. The method receives an authentication policy that defines multiple users of a system providing the service, and also receives an authorization policy that defines access to the service by the users. The method generates an authorization policy for defining access to the service by authenticated users by combining the first and second policies. The method receives a query regarding access to the service from a particular set of one or more users, and uses the third policy to provide a response to the query that describes access to the service for the particular user set.

Abstract: Wellbore synthesis techniques are disclosed suitable for use in geothermal applications. Embodiments are provided where open hole drilled wellbores are sealed while drilling to form an impervious layer at the wellbore/formation interface. The techniques may be chemical, thermal, mechanical, biological and are fully intended to irreversibly damage the formation in terms of the permeability thereof. With the permeability negated, the wellbore may be used to create a closed loop surface to surface geothermal well operable in the absence of well casing for maximizing thermal transfer to a circulating working fluid. Formulations for the working and drilling fluids are disclosed.

Abstract: Some embodiments of the invention provide a system for defining, distributing and enforcing policies for authorizing API (Application Programming Interface) calls to applications executing on one or more sets of associated machines (e.g., virtual machines, containers, computers, etc.) in one or more datacenters. This system has a set of one or more servers that acts as a logically centralized resource for defining and storing policies and parameters for evaluating these policies. The server set in some embodiments also enforces these API-authorizing policies. Conjunctively, or alternatively, the server set in some embodiments distributes the defined policies and parameters to policy-enforcing local agents that execute near the applications that process the API calls. From an associated application, a local agent receives API-authorization requests to determine whether API calls received by the application are authorized.

Abstract: Some embodiments provide API (Application Programming Interface) authorization platform that allows API-authorization policy stacks to be created and enforced. Policy stacks (called “stacks”) define API-authorization policies across different sets of managed resources in a workspace. A stack in some embodiments defines a uniform set of one or more API-authorization policies for multiple different sets of resources so that the set of policies do not have to be specified independently for each set of resources. By instituting common policies across multiple managed resource sets (also called managed systems), stacks can be used to guarantee uniform baseline policies for the workspace. A stack is typically applied to several managed resources that share a common trait (e.g., share a particular type). The API-authorization platform of some embodiments allows an administrator to define the traits of the managed resources through labels (e.g.

Abstract: Some embodiments provide a method gaining insight into applicability of policies that authorize access to at least one service through application programming interface (API) calls by a plurality of users. The method receives an authentication policy that defines multiple users of a system providing the service, and also receives an authorization policy that defines access to the service by the users. The method generates an authorization policy for defining access to the service by authenticated users by combining the first and second policies. The method receives a query regarding access to the service from a particular set of one or more users, and uses the third policy to provide a response to the query that describes access to the service for the particular user set.

Abstract: Some embodiments provide a method for gaining insight into applicability of policies that authorize access to at least one service through application programming interface (API) calls by a plurality of users. The method receives at least one authorization policy that defines access to the service by the users, where the service includes multiple resources. The method identifies combinations of users and resources referenced by the policy, and for each identified combination of user and resource, executes the policy in order to define access to the identified resource by the identified user. The method receives a query regarding access to a particular resource from a particular set of one or more users, and uses the executed policy to provide a response to the query that describes access to the particular resource for the particular user set.

Abstract: Some embodiments provide a method for gaining insight into applicability of policies that authorize access to at least one service through application programming interface (API) calls by multiple users. The method receives at least one authorization policy that defines access to the service by the users, where the service includes multiple resources. Based on an analysis of the received policy, the method identifies a set of two or more access rules, each access rule associating at least one user to at least one resource. The method receives a query regarding access to a particular resource from a particular set of one or more users, and uses the identified access rules to provide a response to the query that describes access to the particular resource for the particular user set.

Abstract: Metal powder particles for use in additive manufacturing are made by removing material from the surface of the particles using wet chemical etching to create a nanoscale texturing of the surface, increasing absorptivity by the metal powder particles of incident laser light and maintaining flowability. The nanoscale texturing has sub-wavelength features at laser wavelengths in the range 800-1100 nm. The particles are substantially spherical and have mean diameters in the range 10-70 ?m.

Abstract: Provided herein are SIRP-gamma, SIRP-beta or SIRP-beta2 decoy polypeptides for immunotherapy and/or treatment of cancer, anemia, transplant, asthma, allergy, auto-immune disease, and viral infection.

Abstract: An example collapsible blower extension for a leaf blower is provided. The collapsible blower extension may include an elongate body forming an internal airflow passageway. The elongate body may be formed of a pliable material causing the internal airflow passageway to be collapsible. The collapsible blower extension may also include an input opening at a proximal end of the elongate body configured to be disposed proximate a leaf blower working assembly airflow outlet and an output opening at a distal end of the elongate body.

Abstract: Some embodiments of the invention provide a system for defining, distributing and enforcing policies for authorizing API (Application Programming Interface) calls to applications executing on one or more sets of associated machines (e.g., virtual machines, containers, computers, etc.) in one or more datacenters. This system has a set of one or more servers that acts as a logically centralized resource for defining and storing policies and parameters for evaluating these policies. The server set in some embodiments also enforces these API-authorizing policies. Conjunctively, or alternatively, the server set in some embodiments distributes the defined policies and parameters to policy-enforcing local agents that execute near the applications that process the API calls. From an associated application, a local agent receives API-authorization requests to determine whether API calls received by the application are authorized.

Abstract: Wellbore synthesis techniques are disclosed suitable for use in geothermal applications. Embodiments are provided where open hole drilled wellbores are sealed while drilling to form an impervious layer at the wellbore/formation interface. The techniques may be chemical, thermal, mechanical, biological and are fully intended to irreversibly damage the formation in terms of the permeability thereof. With the permeability negated, the wellbore may be used to create a closed loop surface to surface geothermal well operable in the absence of well casing for maximizing thermal transfer to a circulating working fluid. Formulations for the working and drilling fluids are disclosed.

Abstract: Some embodiments provide a method for providing insight into applicability of policies that authorize access to at least one service through application programming interface (API) calls by multiple users. The method receives at least one authorization policy that defines access to the service by the users, where the policy includes two or more access rules. The method identifies a subset of unnecessary access rules in the received policy, based on a set of contextual data that is associated with the users, and filters the received policy by removing the identified subset of unnecessary access rules. The method receives a query regarding access to the service from a particular set of one or more users, and uses the filtered policy to provide a response to the query that describes access to the service for the particular user set.

Abstract: Closed loop wellbore configurations with unrestricted geometry for accommodating irregular or challenging thermal gradients within a thermally productive formation are disclosed. A working fluid is utilized in the loop for extraction of thermal energy there from. The loop and the unrestricted geometry are achieved using magnetic ranging of independent drilling operations which intersect from an inlet well and outlet well to form an interconnecting segment. In conjunction with the directional drilling, conditioning operations are incorporated to condition the rock face, cool the entire system, activate the wellbore for treatment to optimize thermal transfer inter alia. The significant degree of freedom in wellbore configuration is further optimized by the absence of mechanical impediments such as casing or liners in the heat transfer areas.