In the invention, a joining means having a ram tool, a countertool and a holder with an opening to accommodate the ram tool or the countertool, is described. The two tools are arranged coaxial with each other at different ends of a C-bracket. The holder comprises at least one plane contact surface arranged on the outer surface of the holder, resting in contact with at least one plane face of the corresponding end of the C-bracket and detachably fastened thereto. Between the contact surface and the face, at least one interlay is arranged, determining the information and/or the distance of the contact surface from the face.

An attachment mount for the front end of a truck, which can fit trucks with full-width or tapering chassis. The attachment mount may include a front member for supporting a front-end truck attachment, and a distribution member. The distribution member may be attached to the vehicle chassis and to the front member, so that the attachment mount spreads stresses originating from downwardly-directed forces exerted on the front member by the attachment, to the front portion of the vehicle chassis.

According to various aspects, exemplary embodiments include one or more frequency selective structures (e.g., two-dimensional or three-dimensional frequency selective structure or surface, etc.), which may be used for shielding or mitigating EMI within open or closed structures. Also disclosed are methods of using one or more frequency selective structures for shielding or mitigating electromagnetic interface (EMI) within open or closed structures.

A method for manufacturing an optical-assembly includes the steps of preparing an optical connector including a base having an optical waveguide and a first support block holding a first optical fiber, the base having first and second end surfaces; aligning the optical connector to the optical device, the first end surface of the base facing to the optical device, the first support block being fixed to the base in a removable manner; after aligning the optical connector, fixing the base to the optical device; after fixing the base, removing the first support block from the base; after removing the first support block, re-fixing a second support block to the base, the second end surface of the base facing to the second support block. The second support block has an optical fiber and a through hole. The base has a guide pin inserted to the through hole in the re-fixing step.

A method of leveling a machine on a support surface includes supporting the machine on the support surface, the machine including multiple load-bearing supports, and inserting a stack of support plates underneath a load-bearing support of the multiple load-bearing supports, the stack of support plates having an area and a strength that are sufficient to support the machine. The stack of support plates includes a first plate that includes multiple projections that extend outward from a bottom surface of the first plate and a second plate that includes multiple recesses that extend inward from a top surface of the second plate, the multiple recesses being sized to receive the multiple projections, respectively, and multiple grooves disposed along respective edges of the top surface. When the first plate is stacked adjacent the second plate, the first and second plates bear against each other to support a load of the machine.

Dialysis systems and methods are described which can include a number of features. The dialysis systems described can be to provide dialysis therapy to a patient in the comfort of their own home. The dialysis system can be configured to prepare purified water from a tap water source in real-time that is used for creating a dialysate solution. The dialysis systems described also include features that make it easy for a patient to self-administer therapy. For example, the dialysis systems include disposable cartridge and patient tubing sets that are easily installed on the dialysis system and automatically align the tubing set, sensors, venous drip chamber, and other features with the corresponding components on the dialysis system. Methods of use are also provided, including automated priming sequences, blood return sequences, and dynamic balancing methods for controlling a rate of fluid transfer during different types of dialysis, including hemodialysis, ultrafiltration, and hemodiafiltration.

An attachment mount for the front end of a truck, which can fit trucks with full-width or tapering chassis. The attachment mount may include a front member for supporting a front-end truck attachment, and a distribution member. The distribution member may be attached to the vehicle chassis and to the front member, so that the attachment mount spreads stresses originating from downwardly-directed forces exerted on the front member by the attachment, to the front portion of the vehicle chassis.