Abstract: An online system receives advertisement requests from one or more advertisers and determines whether an advertisement request includes malicious content before presenting content from the advertisement request to a user. To determine whether the advertisement request includes malicious content, the online system identifies text in the advertisement request, identifies words in the text, and identifies characters in each word. The online system identifies a most common type of character in each word and generates a score for each word based on its constituent characters. For example, a word's score is based on the combination of characters in the word, such as a conditional probability of a word including a type of character given that the word includes a given number of the most common type of character. The scores are analyzed to determine if text in the advertisement request includes malicious content.

Abstract: A turbine blade is described herein, the turbine blade including a blade root, a blade tip, and an airfoil extending between the blade root and the blade tip. The airfoil has opposite pressure and suction sides extending between a forward leading edge and an aft trailing edge of the airfoil, and a maximum thickness located between the leading edge and the trailing edge. The blade tip includes a winglet extending laterally outward from at least one of the pressure side and the suction side from a leading point between the leading edge and the maximum thickness aftward to a trailing point between the maximum thickness and the trailing edge.

Abstract: A turbine blade is described herein, the turbine blade including a blade root, a blade tip, and an airfoil extending between the blade root and the blade tip. The airfoil has opposite pressure and suction sides extending between a forward leading edge and an aft trailing edge of the airfoil, and a maximum thickness located between the leading edge and the trailing edge. The blade tip includes a winglet extending laterally outward from at least one of the pressure side and the suction side from a leading point between the leading edge and the maximum thickness aftward to a trailing point between the maximum thickness and the trailing edge.

Abstract: One example aspect of the present disclosure is directed to a method for measuring engine performance. The method includes receiving a plurality of parameters related to engine performance. The method includes receiving an indication of an engine wash event. The method includes determining an effectiveness of the engine wash event based on the plurality of parameters. The method includes performing a comparison of the effectiveness of the engine wash event with an expected effectiveness of the engine wash event. The method includes performing a control action based on the comparison.

Abstract: One example aspect of the present disclosure is directed to a method for measuring engine performance. The method includes receiving first parameters related to engine performance prior to an engine wash event. The method includes receiving second parameters related to engine performance after the engine wash event. The method includes determining an engine performance prior to the engine wash event based on the first parameters. The method includes determining an engine performance after the engine wash event based on the second parameters. The method includes determining an effectiveness of the engine wash event based on the engine performance prior to the engine wash event and the engine performance after the engine wash event.

Abstract: Lead electrodes having an asymmetrically distributed current density and methods for imparting current density directionality in lead electrodes are described. An implantable medical lead includes a lead body having a proximal section that connects to another implantable device and a distal section having a pre-biased shape configured to secure the lead to an inner wall of a body vessel. An electrode coupled to the distal section of the lead body includes a conductor mass having an asymmetrically distributed current density that imparts a directionality to one or more active portions of the electrode.

Abstract: Embodiments of the present invention fill the need of displaying relevant advertisements to members of targeted online groups (or online community groups), whose group members share common interests. The relevant advertisements are provided by advertisers who promote goods and/or services that the targeted online groups are likely to have an interest. The advertisers choose the targeted online groups based on the description of the common interests, focus or background of the online groups, or based on the categories that the online groups are associated. In one embodiment, moderators of the online groups may screen the advertisements before they are displayed on the online group media spaces. By matching interests, focus or background of online groups with products and/or serviced promoted by the advertisers and by moderators screening advertisements, the advertisements displayed would be more likely to be relevant to the members of the online groups.

Abstract: An installation tool for one or more components of a fluid filter includes a first body portion configured to engage a filter socket to advance the tool and filter components into the socket, and a second body portion configured to apply a direct force to one or more filter components. The first and second body portions can rotationally move relative to each other, such that the filter components may not grind against the socket or other filter components, which can, among other things, reduce or eliminate the creation of foreign object debris and/or minimize the amount of human force required to install the filter components.

Abstract: A turbine blade is described herein, the turbine blade including a blade root, a blade tip, and an airfoil extending between the blade root and the blade tip. The airfoil has opposite pressure and suction sides extending between a forward leading edge and an aft trailing edge of the airfoil, and a maximum thickness located between the leading edge and the trailing edge. The blade tip includes a winglet extending laterally outward from at least one of the pressure side and the suction side from a leading point between the leading edge and the maximum thickness aftward to a trailing point between the maximum thickness and the trailing edge.

Abstract: This invention provides a method for synthesizing semi-crystalline polylactides (PLA) even from a lactide mixture including meso-LA and rac-LA. According to the invention, when a mixture of racemic lactide and meso-lactide ispolymerized using a catalyst capable of iso-selectively polymerizing L-lactide and D-lactide, an amorphous poly (meso-lactide) block is formed from meso-lactide and a semi-crystalline poly (racemic lactide) block is formed from racemic lactide by separately polymerizing racemic lactide and meso-lactide by taking advantage of a difference in physicochemical properties between racemic lactide and meso-lactide, whereby polylactide which is semi-crystalline as a whole is produced.

Abstract: A tool for operating a vehicle tire chain tensioner and a method of using the same. The tool is a member having spaced apart first and second ends. The first end is configured to engage a first style of chain tensioner and the second end is configured to engage a second style of chain tensioner. The first end includes a leg extending outwardly at ninety degrees from the member in a first direction; and the second end includes spaced apart first and second arms that extend outwardly at ninety degrees from the member in a second direction. The member, leg, and first and second arms are all aligned in the same plane. The leg's free end is complementary to a recess defined in the first style of chain tensioner. A section of the second style of chain tensioner is received in a gap defined between the first and second arms.

Abstract: An online system receives advertisement requests from one or more advertisers and determines whether an advertisement request includes malicious content before presenting content from the advertisement request to a user. To determine whether the advertisement request includes malicious content, the online system identifies text in the advertisement request, identifies words in the text, and identifies characters in each word. The online system identifies a most common type of character in each word and generates a score for each word based on its constituent characters. For example, a word's score is based on the combination of characters in the word, such as a conditional probability of a word including a type of character given that the word includes a given number of the most common type of character. The scores are analyzed to determine if text in the advertisement request includes malicious content.

Abstract: A tool for operating a vehicle tire chain tensioner and a method of using the same. The tool is a member having spaced apart first and second ends. The first end is configured to engage a first style of chain tensioner and the second end is configured to engage a second style of chain tensioner. The first end includes a leg extending outwardly at ninety degrees from the member in a first direction; and the second end includes spaced apart first and second arms that extend outwardly at ninety degrees from the member in a second direction. The member, leg, and first and second arms are all aligned in the same plane. The leg's free end is complementary to a recess defined in the first style of chain tensioner. A section of the second style of chain tensioner is received in a gap defined between the first and second arms.

Abstract: This invention provides a method for synthesizing semi-crystalline polylactides (PLA) even from a lactide mixture including meso-LA and rac-LA. According to the invention, when a mixture of racemic lactide and meso-lactide ispolymerized using a catalyst capable of iso-selectively polymerizing L-lactide and D-lactide, an amorphous poly (meso-lactide) block is formed from meso-lactide and a semi-crystalline poly (racemic lactide) block is formed from racemic lactide by separately polymerizing racemic lactide and meso-lactide by taking advantage of a difference in physicochemical properties between racemic lactide and meso-lactide, whereby polylactide which is semi-crystalline as a whole is produced.

Abstract: An installation tool for one or more components of a fluid filter includes a first body portion configured to engage a filter socket to advance the tool and filter components into the socket, and a second body portion configured to apply a direct force to one or more filter components. The first and second body portions can rotationally move relative to each other, such that the filter components may not grind against the socket or other filter components, which can, among other things, reduce or eliminate the creation of foreign object debris and/or minimize the amount of human force required to install the filter components.

Abstract: An implantable medical lead having a modified electrode surface for imparting current density directionality within an electrode is disclosed. An implantable medical lead includes a lead body having a proximal section and a distal section having a pre-biased shape configured to secure the lead to an inner wall of a blood vessel. An electrode coupled to the distal section of the lead body includes a number of surface features on an inactive portion of the electrode that impart a current density directionality towards an active portion of the electrode that contacts the inner wall of the vessel. Methods for imparting current density directionality within an implantable lead electrode are also disclosed.

Abstract: Lead electrodes having an asymmetrically distributed current density and methods for imparting current density directionality in lead electrodes are described. An implantable medical lead includes a lead body having a proximal section that connects to another implantable device and a distal section having a pre-biased shape configured to secure the lead to an inner wall of a body vessel. An electrode coupled to the distal section of the lead body includes a conductor mass having an asymmetrically distributed current density that imparts a directionality to one or more active portions of the electrode.

Abstract: An implantable medical lead having a modified electrode surface for imparting current density directionality within an electrode is disclosed. An implantable medical lead includes a lead body having a proximal section and a distal section having a pre-biased shape configured to secure the lead to an inner wall of a blood vessel. An electrode coupled to the distal section of the lead body includes a number of surface features on an inactive portion of the electrode that impart a current density directionality towards an active portion of the electrode that contacts the inner wall of the vessel. Methods for imparting current density directionality within an implantable lead electrode are also disclosed.

Abstract: Embodiments of the present invention fill the need of displaying relevant advertisements to members of targeted online groups (or online community groups), whose group members share common interests. The relevant advertisements are provided by advertisers who promote goods and/or services that the targeted online groups are likely to have an interest. The advertisers choose the targeted online groups based on the description of the common interests, focus or background of the online groups, or based on the categories that the online groups are associated. In one embodiment, moderators of the online groups may screen the advertisements before they are displayed on the online group media spaces. By matching interests, focus or background of online groups with products and/or serviced promoted by the advertisers and by moderators screening advertisements, the advertisements displayed would be more likely to be relevant to the members of the online groups.

Abstract: The invention provides novel cyclooxygenase 2 (COX-2) selective inhibitors and novel compositions and kits comprising at least one cyclooxygenase 2 (COX-2) selective inhibitor, and, optionally, at least one compound that donates, transfers or releases nitric oxide, stimulates endogenous synthesis of nitric oxide, elevates endogenous levels of endothelium-derived relaxing factor or is a substrate for nitric oxide synthase, and/or at least one therapeutic agent. The novel cyclooxygenase 2 selective inhibitors of the invention can be optionally nitrosated and/or nitrosylated. The invention also provides methods for treating inflammation, pain and fever; for treating and/or improving the gastrointestinal properties of COX-2 selective inhibitors; for facilitating wound healing; for treating and/or preventing renal and/or respiratory toxicity; for treating and/or preventing other disorders resulting from elevated levels of cyclooxygenase-2; and for improving the cardiovascular profile of COX-2 selective inhibitors.