Abstract: A luminophore having the general empirical formula X?1?xA?y(Al1+zA?3?z)O4:E? that crystallizes in a tetragonal crystal system. X? may be Mg, Ca, Sr, Ba, and combinations thereof; A? may be Li, Na, K, Rb, Cs, and combinations thereof; E? may be Eu, Ce, Yb, Mn, and combinations thereof; 0<x<0.25; y?x; and z=0.5(2x?y).

Abstract: A piston for an internal combustion engine, in particular for a diesel engine, comprises an iron-based alloy having the following alloy elements in percent by weight (wt %): Carbon (C): 0.07 to 0.24; Chromium (Cr): >7.0 to 12.5; Molybdenum (Mo): 0.3 to 1.2; Manganese (Mn): 0.3 to 0.9; Silicon (Si): <0.5; Copper (Cu): <0.3; Nickel (Ni): <0.8; Vanadium (V): 0.15 to 0.35; Sulfur (S): <0.015; Phosphorus (P): <0.025; Niobium (Nb): <0.1; Nitrogen (N): <0.07; Aluminum (Al): <0.04; Tungsten (W): <2.5 and the remainder being iron (Fe) and unavoidable impurities. Further included is the use of such an iron-based alloy for pistons of an internal combustion engine, in particular of a diesel engine.

Abstract: The present disclosure provides methods for preparing ?-substituted tryptophan compounds. The methods include: combining i) an unsubstituted indole or a substituted indole, ii) a ?-substituted serine, and iii) a tryptophan synthase ?-subunit (i.e., a TrpB); and maintaining the resulting mixture under conditions sufficient to form the ?-substituted tryptophan. The TrpB contains at least one amino acid mutation which promotes formation of an amino-acrylate intermediate. New TrpB variants and new ?-substituted tryptophan analogs are also described.

Abstract: Content creation suggestion techniques are described. In one or more implementations, techniques are implemented to generate suggestions that are usable to guide creative professionals in the creation of content such as images, video, sound, multimedia, and so forth. A variety of techniques are usable to generate suggestions for the content professionals. In a first such example, suggestions are based on shared characteristics of images obtained by users of a content sharing service, e.g., licensed by the users. In another example, suggestions are generated by the content sharing service based on keywords used to locate the images. In a further example, suggestions are generated based on data described communications performed using social network services. In yet another example, recognition of failure of search is used to generate suggestions. A variety of other examples are also contemplated and described herein.

Abstract: The invention relates to a method for producing an engine component, in particular a piston for an internal combustion engine, wherein an aluminum alloy is cast in the gravity die casting process and wherein the aluminum alloy has 7 to <14.5 wt % silicon, >1.2 to ?4 wt % nickel, >3.7 to <10 wt % copper, <1 wt % cobalt, 0.1 to 1.5 wt % magnesium, 0.1 to ?0.7 wt % iron, 0.1 to ?0.7 wt % manganese, >0.1 to <0.5 wt % zirconium, ?0.1 to ?0.3 wt % vanadium, 0.05 to 0.5 wt % titanium, and 0.004 to ?0.05 wt % phosphorus as alloying elements and aluminum and unavoidable contaminants as the remainder. The aluminum alloy can optionally comprise beryllium, wherein the calcium content is limited to a low level.

Abstract: The present disclosure provides methods for preparing ?-substituted tryptophan compounds. The methods include: combining i) an unsubstituted indole or a substituted indole, ii) a ?-substituted serine, and iii) a tryptophan synthase ?-subunit (i.e., a TrpB); and maintaining the resulting mixture under conditions sufficient to form the ?-substituted tryptophan. The TrpB contains at least one amino acid mutation which promotes formation of an amino-acrylate intermediate. New TrpB variants and new ?-substituted tryptophan analogs are also described.

Abstract: An aluminum alloy, and in particular a cast aluminum alloy, for producing an engine component, in particular a piston for an internal combustion engine, consists of the following alloying elements: Silicon: 10% by weight to <13% by weight, nickel: to <0.6% by weight, copper: 1.5% by weight to <3.6% by weight, magnesium: 0.5% by weight to 1.5% by weight, iron: 0.1% by weight to 0.7% by weight, manganese: 0.1 to 0.4% by weight, zirconium: >0.1 to <0.3% by weight, vanadium: >0.08 to <0.2% by weight, titanium: 0.05 to <0.2% by weight, phosphorus: 0.0025 to 0.008% by weight, and as balance aluminum and unavoidable impurities.

Abstract: Content creation and licensing control techniques are described. In a first example, a content creation service is configured to support content creation using an image along with functionality to locate the image or a similar image that is available for licensing. In another example, previews of images are used to generate different versions of content along with an option to license images previewed in an approved version of the content. In a further example, fingerprints are used to locate images used as part of content creation by a content creation service without leaving a context of the service. In yet another example, location of licensable versions of images is based at least in part on identification of a watermark included as part of an image. In an additional example, an image itself is used as a basis to locate other images available for licensing by a content sharing service.

Abstract: Content search and geographical consideration techniques and system employed as part of a digital environment are described. In one or more implementations, a digital medium environment is described for configuring image searches by one or more computing devices. Data is received by the one or more computing devices that identifies images obtained by users and used as part of content creation, indicates geographical locations of respective said users that obtained the images or associated with the content that includes the images, and indicates times associated with the users as obtaining the images or use of the images as part of the content. A map is built by the one or more computing devices that describes how use of the images as part of the content creation is diffused over the geographical locations over the indicated times. An image search is controlled by the one or more computing devices based on the map and a geographic location associated with the image search.

Abstract: The present disclosure provides methods for preparing ?-substituted tryptophan compounds. The methods include: combining i) an unsubstituted indole or a substituted indole, ii) a ?-substituted serine, and iii) a tryptophan synthase ?-subunit (i.e., a TrpB); and maintaining the resulting mixture under conditions sufficient to form the ?-substituted tryptophan. The TrpB contains at least one amino acid mutation which promotes formation of an amino-acrylate intermediate. New TrpB variants and new ?-substituted tryptophan analogs are also described.

Abstract: The present disclosure provides methods for preparing ?-substituted tryptophan compounds. The methods include: combining i) an unsubstituted indole or a substituted indole, ii) a ?-substituted serine, and iii) a tryptophan synthase ?-subunit (i.e., a TrpB); and maintaining the resulting mixture under conditions sufficient to form the ?-substituted tryptophan. The TrpB contains at least one amino acid mutation which promotes formation of an amino-acrylate intermediate. New TrpB variants and new ?-substituted tryptophan analogs are also described.

Abstract: Image search persona techniques and systems are described. In one or more implementations, a digital medium environment is described for controlling image searches by one or more computing devices. An image search request and an indication of one or more personas of one or more respective users associated with the image search request is received by the one or more computing devices. The one or more personas specify characteristics of the one or more respective users themselves. A plurality of images are obtained by the one or more computing devices based on the image search request. The plurality of images are filtered by the one or more computing devices based on the one or more personas and a search result is generated by the one or more computing devices from the filtered plurality of images.

Abstract: Content creation suggestion techniques are described. In one or more implementations, techniques are implemented to generate suggestions that are usable to guide creative professionals in the creation of content such as images, video, sound, multimedia, and so forth. A variety of techniques are usable to generate suggestions for the content professionals. In a first such example, suggestions are based on shared characteristics of images obtained by users of a content sharing service, e.g., licensed by the users. In another example, suggestions are generated by the content sharing service based on keywords used to locate the images. In a further example, suggestions are generated based on data described communications performed using social network services. In yet another example, recognition of failure of search is used to generate suggestions. A variety of other examples are also contemplated and described herein.

Abstract: Content creation suggestion techniques are described. In one or more implementations, techniques are implemented to generate suggestions that are usable to guide creative professionals in the creation of content such as images, video, sound, multimedia, and so forth. A variety of techniques are usable to generate suggestions for the content professionals. In a first such example, suggestions are based on shared characteristics of images obtained by users of a content sharing service, e.g., licensed by the users. In another example, suggestions are generated by the content sharing service based on keywords used to locate the images. In a further example, suggestions are generated based on data described communications performed using social network services. In yet another example, recognition of failure of search is used to generate suggestions. A variety of other examples are also contemplated and described herein.

Abstract: Usage based content search result techniques are described. In one or more implementations, a digital medium environment controls image searches and availability by one or more computing devices. A search is performed by the one or more computing devices to locate images made available via a network by a content sharing service responsive to one or more inputs received from a user. A search result is configured by the one or more computing devices that includes the plurality of images based at least in part on an amount of usage of respective said images by other users of the content sharing service. Output of the search result is controlled via a user interface by the one or more computing devices to the user of the content sharing service.

Abstract: A method for producing an engine component, more particularly a piston for an internal combustion engine, in which an aluminum alloy is cast using the gravity die casting method is provided. The aluminum alloy comprises: 9 to ?10.5% by weight silicon, >2.0 to <3.5% by weight nickel, >3.7 to 5.2% by weight copper, <1% by weight cobalt, 0.5 to 1.5% by weight magnesium, 0.1 to 0.7% by weight iron, 0.1 to 0.4% by weight manganese, >0.1 to <0.2% by weight zirconium, >0.1 to <0.2% by weight vanadium, 0.05 to <0.2% by weight titanium, 0.004 to 0.008% by weight phosphorus, with aluminum and unavoidable impurities constituting the rest. An engine component, in particular a piston, wherein the engine component consists, at least partially, of the aluminum alloy, and the use of an aluminum alloy to produce the engine component, is also provided.

Abstract: The present disclosure provides methods for preparing ?-substituted tryptophan compounds. The methods include: combining i) an unsubstituted indole or a substituted indole, ii) a ?-substituted serine, and iii) a tryptophan synthase ?-subunit (i.e., a TrpB); and maintaining the resulting mixture under conditions sufficient to form the ?-substituted tryptophan. The TrpB contains at least one amino acid mutation which promotes formation of an amino-acrylate intermediate. New TrpB variants and new ?-substituted tryptophan analogs are also described.

Abstract: A method is described for producing an engine component, more particularly a piston for an internal combustion engine, in which an aluminium alloy is cast using the gravity die casting method and wherein the aluminium alloy comprises the following alloy elements: 9 to ?10.5% by weight silicon, >2.0 to <3.5% by weight nickel, >3.7 to 5.2% by weight copper, <1% by weight cobalt, 0.5 to 1.5% by weight magnesium, 0.1 to 0.7% by weight iron, 0.1 to 0.4% by weight manganese, >0.1 to <0.2% by weight zirconium, >0.1 to <0.2% by weight vanadium, 0.05 to <0.2% by weight titanium, 0.004 to 0.008% by weight phosphorus, wherein said aluminium alloy further comprises aluminium and unavoidable impurities.

Abstract: According to various embodiments, a method for processing a semiconductor layer may include: generating an etch plasma in a plasma chamber of a remote plasma source, wherein the plasma chamber of the remote plasma source is coupled to a processing chamber for processing the semiconductor layer; introducing the etch plasma into the processing chamber to remove a native oxide layer from a surface of the semiconductor layer and at most a negligible amount of semiconductor material of the semiconductor layer; and, subsequently, depositing a dielectric layer directly on the surface of the semiconductor layer.

Abstract: A method for producing an engine component, more particularly a piston for an internal combustion engine, in which an aluminium alloy is cast using the gravity die casting method is provided. The aluminium alloy comprises: 9 to ?10.5% by weight silicon, >2.0 to <3.5% by weight nickel, >3.7 to 5.2% by weight copper, <1% by weight cobalt, 0.5 to 1.5% by weight magnesium, 0.1 to 0.7% by weight iron, 0.1 to 0.4% by weight manganese, >0.1 to <0.2% by weight zirconium, >0.1 to <0.2% by weight vanadium, 0.05 to <0.2% by weight titanium, 0.004 to 0.008% by weight phosphorus, with aluminium and unavoidable impurities constituting the rest. An engine component, in particular a piston, wherein the engine component consists, at least partially, of the aluminium alloy, and the use of an aluminium alloy to produce the engine component, is also provided.