Abstract: A dart holder (10) comprising: first positioning means (1), holding means (3) for holding optionally at least the tip and/or part of the barrel of a dart in a settled position in the first positioning means (1) such that the barrel of said dart is accessible for being grabbed by a user's hand, a first landing area (4) arranged on the first positioning means (1) in respect to the holding means (3) such that said first landing area (4) provides a reference to at least part of the hand for grabbing the barrel at a target position, wherein the holding means (3) is formed by a shaft (30) extending from the first landing area (4) at least partially through the first positioning means (1) up to a shaft end (31) facing away from the first landing area (4), wherein the shaft (30) is provided with a limitation reference means (8) to define a limitation for the tip of the barrel when it is inserted in the shaft (30).

Abstract: A dart holder (10) comprising: first positioning means (1), holding means (3) for holding optionally at least the tip and/or part of the barrel of a dart in a settled position in the first positioning means (1) such that the barrel of said dart is accessible for being grabbed by a user's hand, a first landing area (4) arranged on the first positioning means (1) in respect to the holding means (3) such that said first landing area (4) provides a reference to at least part of the hand for grabbing the barrel at a target position, wherein the holding means (3) is formed by a shaft (30) extending from the first landing area (4) at least partially through the first positioning means (1) up to a shaft end (31) facing away from the first landing area (4), wherein the shaft (30) is provided with a limitation reference means (8) to define a limitation for the tip of the barrel when it is inserted in the shaft (30).

Abstract: Provided herein are genetically engineered microbes that include at least a portion of a carbon fixation pathway, and in one embodiment, use molecular hydrogen to drive carbon dioxide fixation. In one embodiment, the genetically engineered microbe is modified to convert acetyl CoA, molecular hydrogen, and carbon dioxide to 3-hydroxypropionate, 4-hydroxybutyrate, acetyl CoA, or the combination thereof at levels greater than a control microbe. Other products may also be produced. Also provided herein are cell free compositions that convert acetyl CoA, molecular hydrogen, and carbon dioxide to 3-hydroxypropionate, 4-hydroxybutyrate, acetyl CoA, or the combination thereof. Also provided herein are methods of using the genetically engineered microbes and the cell free compositions.

Abstract: Provided herein are genetically engineered microbes that include at least a portion of a carbon fixation pathway, and in one embodiment, use molecular hydrogen to drive carbon dioxide fixation. In one embodiment, the genetically engineered microbe is modified to convert acetyl CoA, molecular hydrogen, and carbon dioxide to 3-hydroxypropionate, 4-hydroxybutyrate, acetyl CoA, or the combination thereof at levels greater than a control microbe. Other products may also be produced. Also provided herein are cell free compositions that convert acetyl CoA, molecular hydrogen, and carbon dioxide to 3-hydroxypropionate, 4-hydroxybutyrate, acetyl CoA, or the combination thereof. Also provided herein are methods of using the genetically engineered microbes and the cell free compositions.

Abstract: Provided herein are genetically engineered microbes that include at least a portion of a carbon fixation pathway, and in one embodiment, use molecular hydrogen to drive carbon dioxide fixation. In one embodiment, the genetically engineered microbe is modified to convert acetyl CoA, molecular hydrogen, and carbon dioxide to 3-hydroxypropionate, 4-hydroxybutyrate, acetyl CoA, or the combination thereof at levels greater than a control microbe. Other products may also be produced. Also provided herein are cell free compositions that convert acetyl CoA, molecular hydrogen, and carbon dioxide to 3-hydroxypropionate, 4-hydroxybutyrate, acetyl CoA, or the combination thereof. Also provided herein are methods of using the genetically engineered microbes and the cell free compositions.

Abstract: Provided herein are genetically engineered microbes that include at least a portion of a carbon fixation pathway, and in one embodiment, use molecular hydrogen to drive carbon dioxide fixation. In one embodiment, the genetically engineered microbe is modified to convert acetyl CoA, molecular hydrogen, and carbon dioxide to 3-hydroxypropionate, 4-hydroxybutyrate, acetyl CoA, or the combination thereof at levels greater than a control microbe. Other products may also be produced. Also provided herein are cell free compositions that convert acetyl CoA, molecular hydrogen, and carbon dioxide to 3-hydroxypropionate, 4-hydroxybutyrate, acetyl CoA, or the combination thereof. Also provided herein are methods of using the genetically engineered microbes and the cell free compositions.

Abstract: The valve-lash adjustment system 10 includes a load-carrying spacer means 82 adjacent the hydraulic valve-lash assembly which is interposed between said hydraulic valve-lash assembly and said free end 12 of the valve stem, the thickness of said load-carrying spacer means 82 being such as to compensate substantially for said mechanical tolerances between said valve and said associated engine components, so that, during engine operation, said hydraulic valve-lash adjuster assembly adjusts the overall length thereof within a limited range of distances required to compensate for said thermal expansion/contraction between the valve and said associated engine components, and, in the event of a failure in supply of hydraulic fluid to said hydraulic valve-lash adjuster assembly, said hydraulic valve-lash adjuster assembly will only decrease in overall length by an amount falling within said limited range of distances.

Abstract: A fabric conditioner comprising 18 to 50% by weight of a mixture of at least two quaternary ammonium salt components (A) and (B) with the remainder of the conditioner being water and auxiliary agents.

Abstract: A process for the preparation of trialkanolamine di(fatty acid) esters in which a trialkanolamine is reacted with a fatty acid in the presence of small amounts of a fatty acid ester.The trialkanolamine fatty acid diesters obtained can be converted into the quaternary ammonium salt by means of standard quaternizing agents, and the resulting products can be employed as fabric conditioners.