An assembly for a dual-walled component of a gas turbine engine and methods of forming and repairing a dual-walled component. The assembly includes a cold section part having an outer surface that defines a plurality of impingement apertures, a hot section part including a pre-sintered preform, the hot section part positioned over the outer surface of the cold section part, and a plurality of support structures including the pre-sintered preform, the plurality of support structures positioned between the hot section part and the cold section part, the plurality of support structures separating the hot section part from the cold section part to define at least one cooling channel therebetween.

An iron-type golf club head is disclosed having a heel portion, a sole portion, a toe portion, a top-line portion, a front portion, a rear portion, and a striking face. A back wall is also disclosed in the rear portion enclosing a portion of the rear portion to create an enclosed cavity. The cavity is defined by at least a rear surface of the striking face, an inner back wall surface, and the sole portion. A plug and a filler material is located within the enclosed cavity. The filler material surrounds the plug and is configured to hold the plug in place. The plug is lighter than the filler material.

An iron-type golf club head is disclosed having a heel portion, a sole portion, a toe portion, a top-line portion, a front portion, a rear portion, and a striking face. A back wall is also disclosed in the rear portion enclosing a portion of the rear portion to create an enclosed cavity. The cavity is defined by at least a rear surface of the striking face, an inner back wall surface, and the sole portion. A plug and a filler material is located within the enclosed cavity. The filler material surrounds the plug and is configured to hold the plug in place. The plug is lighter than the filler material.

A steel plate, the chemical composition of which includes, the contents being expressed by weight: 0.010%C0.20%, 0.06%Mn3%, Si1.5%, 0.005%Al1.5%, S0.030%, P0.040%, 2.5%Ti7.2%, (0.45Ti)0.35%B(0.45Ti)+0.70%, and optionally one or more elements chosen from: Ni1%, Mo1%, Cr31, Nb0.1%, V0.1%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting.

A steel plate, the chemical composition of which includes, the contents being expressed by weight: 0.010%C0.20%, 0.06%Mn3%, Si1.5%, 0.005%Al1.5%, S0.030%, P0.040%, 2.5%Ti7.2%, (0.45Ti)0.35%B(0.45Ti)+0.70%, and optionally one or more elements chosen from: Ni1%, Mo1%, Cr31, Nb0.1%, V0.1%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting.

An improved tampon has a tampon body and a removal string, having a length (L) between a first end and second end permanently affixed at or along at least one first end of the string to the tampon body and wherein the second end is looped back into the tampon body and attached thereto to form a shortened single loop. The second end can be permanently attached or removably attached to the tampon body and the single loop extends from the tampon body a distance (D) less than half the length (L) of the removal string.

An improved tampon has a tampon body and a removal string, having a length (L) between a first end and second end permanently affixed at or along at least one first end of the string to the tampon body and wherein the second end is looped back into the tampon body and attached thereto to form a shortened single loop. The second end can be permanently attached or removably attached to the tampon body and the single loop extends from the tampon body a distance (D) less than half the length (L) of the removal string.

The disclosure provides a cell culture apparatus having multiple stacked cell culture units each having multiple cell culture chambers. The multiple cell culture units are connected by a manifold which connects the cell culture units and provides a mechanism for efficiently filling the multiple cell culture chambers.

Apparatus, methods and systems for physically confining a liquid medium applied over a semiconductor wafer include a chemical head. The chemical head including multiple first return conduits formed from a first flat region in a head surface and multiple second return conduits formed from a second flat region in the head surface. The second flat region being disposed immediately adjacent to the first flat region and the second flat region being in a plane substantially parallel to and offset from the first flat region. At least one of the first return conduits and the second return conduits being formed at a first angle relative to the head surface and the first angle being greater than about 20 degrees to a meniscus plane normal.

Apparatus, methods and systems for physically confining a liquid medium applied over a semiconductor wafer include a chemical head. The chemical head including multiple first return conduits formed from a first flat region in a head surface and multiple second return conduits formed from a second flat region in the head surface. The second flat region being disposed immediately adjacent to the first flat region and the second flat region being in a plane substantially parallel to and offset from the first flat region. At least one of the first return conduits and the second return conduits being formed at a first angle relative to the head surface and the first angle being greater than about 20 degrees to a meniscus plane normal.