Abstract: A vehicle body structure for safely protecting a high-voltage, the vehicle body structure including: a battery mounted on bottom portions of a center floor and a rear floor; and a protective structure having a bottom portion on which a peripheral portion of the battery is mounted and including panels fitted to each other into a shape covering a peripheral portion of the center floor.

Abstract: A side sill rigidity reinforcement structure for a vehicle is mounted an inside surface of a side sill of the vehicle, thereby improving rigidity against side collision. the side sill rigidity reinforcement structure includes: a side sill inner 11, a side sill outer 12 disposed outside the side sill inner 11 and bonded to the side sill inner 11, and a side sill reinforcement member 20 installed in a space between the side sill inner 11 and the side sill outer 12. In particular, the side sill reinforcement member 20 has a plurality of portions each having a closed section formed to penetrate in the width direction of the vehicle, and the portions are repeatedly formed in the longitudinal direction of the vehicle.

Abstract: A scrum type side sill includes: a side sill inner located on a side surface of a center floor, wherein the center floor forms a bottom of a vehicle body; a side sill outer coupled to the side sill inner and configured to form a side sill inner space; and a plurality of scrum members provided in the side sill inner space in a longitudinal direction of the vehicle.

Abstract: It is disclosed a method for preparing calteridol used as MRI contrast agents. It provides a method for preparing calteridol comprising: obtaining teridol represented by the following Formula 2 by reacting gadoteridol represented by the following Formula 1 with decomplexing agent; and obtaining calteridol represented by the following Formula 3 by reacting calcium ion with teridol represented by following Formula 2.

Abstract: A vehicle body structure for safely protecting a high-voltage, the vehicle body structure including: a battery mounted on bottom portions of a center floor and a rear floor; and a protective structure having a bottom portion on which a peripheral portion of the battery is mounted and including panels fitted to each other into a shape covering a peripheral portion of the center floor.

Abstract: A scrum type side sill includes: a side sill inner located on a side surface of a center floor, wherein the center floor forms a bottom of a vehicle body; a side sill outer coupled to the side sill inner and configured to form a side sill inner space; and a plurality of scrum members provided in the side sill inner space in a longitudinal direction of the vehicle.

Abstract: A side sill rigidity reinforcement structure for a vehicle is mounted an inside surface of a side sill of the vehicle, thereby improving rigidity against side collision. the side sill rigidity reinforcement structure includes: a side sill inner 11, a side sill outer 12 disposed outside the side sill inner 11 and bonded to the side sill inner 11, and a side sill reinforcement member 20 installed in a space between the side sill inner 11 and the side sill outer 12. In particular, the side sill reinforcement member 20 has a plurality of portions each having a closed section formed to penetrate in the width direction of the vehicle, and the portions are repeatedly formed in the longitudinal direction of the vehicle.

Abstract: A side sill rigidity reinforcement structure of a vehicle may include an external side sill external member which includes an upper support portion and a lower support portion each having a section convexly formed outwardly from a vehicle and mounted vertically, is formed to connect the upper support portion and the lower support portion; an internal side sill external member which is mounted inside any one of the upper support portion and the lower support portion; a side sill external panel which is bonded outside the external side sill external member; and a side sill internal panel which has an upper portion and a lower portion bonded to the side sill external panel.

Abstract: Disclosed is a method for producing calcobutrol used as an MRI contrast agent. The method comprises the steps of: obtaining butrol represented by chemical formula 2 in the specification by reacting a gadobutrol represented by chemical formula 1 in the specification and a decomplexing agent; and obtaining a calcobutrol represented by chemical Formula 3 in the specification by reacting butrol with calcium ions.

Abstract: It is disclosed a method for preparing calteridol used as MRI contrast agents. It provides a method for preparing calteridol comprising: obtaining teridol represented by the following Formula 2 by reacting gadoteridol represented by the following Formula 1 with decomplexing agent; and obtaining calteridol represented by the following Formula 3 by reacting calcium ion with teridol represented by following Formula 2.

Abstract: It is disclosed a method for preparing calcobutrol, an excipient for preparing gadobutrol injections used as MRI contrast agents. the present invention provides a method for producing calcobutrol comprising: reacting lithium chloride and 4,4-dimethyl-3,5,8-trioxabicyclo[5,1,0]octane with 1,4,7,10-tetraazacyclododecane represented by the following Formula 1 to obtain a calcobutrol intermediate represented by the following Formula 2; reacting the calcobutrol intermediate represented by Formula 2 with chloroacetic acid to obtain butrol represented by the following Formula 3; and reacting butrol represented by Formula 3 with calcium ion to obtain calcobutrol represented by Formula 4 below.

Abstract: Disclosed are: an intermediate capable of high-purity synthesis of gadobutrol which can be used as an MRI contrast agent; and a gadobutrol production method using same. The gadobutrol intermediate is represented by Chemical Formula 2 in the specification.

Abstract: A side sill rigidity reinforcement structure of a vehicle may include an external side sill external member which includes an upper support portion and a lower support portion each having a section convexly formed outwardly from a vehicle and mounted vertically, is formed to connect the upper support portion and the lower support portion; an internal side sill external member which is mounted inside any one of the upper support portion and the lower support portion; a side sill external panel which is bonded outside the external side sill external member; and a side sill internal panel which has an upper portion and a lower portion bonded to the side sill external panel.

Abstract: Disclosed is a method for producing calcobutrol used as an MRI contrast agent. The method comprises the steps of: obtaining butrol represented by chemical formula 2 in the specification by reacting a gadobutrol represented by chemical formula 1 in the specification and a decomplexing agent; and obtaining a calcobutrol represented by chemical Formula 3 in the specification by reacting butrol with calcium ions.

Abstract: Disclosed are: an intermediate capable of high-purity synthesis of gadobutrol which can be used as an MRI contrast agent; and a gadobutrol production method using same. The gadobutrol intermediate is represented by Chemical Formula 2 in the specification.

Abstract: A side body frame of a vehicle includes a collision load decentralization member coupled to an A pillar of a side outer panel, the A pillar being divided into a lower reinforcement part, an intermediate reinforcement part, and an upper reinforcement part, where the collision load decentralization member decentralizes a collision load transferred from a tire by a collision deformation to a door load decentralization flow path passing through the intermediate reinforcement part and a side sill load decentralization flow path passing through the lower reinforcement part.

Abstract: A center pillar structure of a vehicle includes: a center pillar that is disposed at a center portion in a length direction of a vehicle body and supports the vehicle body; a center pillar outer reinforcement panel that supports the center pillar as a basic frame of the center pillar; a side sill that extends in the length direction of the vehicle at a lower side of the center pillar; and a center pillar inner panel coupled to parts of the side sill and the center pillar outer reinforcement panel by being overlapped therewith to form the center pillar, and disposed farther inside in a width direction of the vehicle body than the center pillar output reinforcement panel. The side sill and the center pillar output reinforcement panel are integrated.

Abstract: A reinforcement structure of a side sill for a vehicle may include a side internal panel disposed within a vehicle body; a side sill reinforcement attached to the external surface of the side internal panel and forming a sill space; and a side sill extension closing the opening portion open to the front of the sill space formed by the side internal panel and the side sill reinforcement and being coupled to the side internal panel, the side sill reinforcement and a side sill reinforcing member, respectively.

Abstract: Racemic or optically active D- or L-?-glycerophosphoryl choline solids are prepared from liquid type racemic or optically active D- or L-?-glycerophosphoryl choline using an organic solvent. The solids are produced at a high yield more easily through phase transformation than an existing method using a difference in solubility in a solvent.

Abstract: A side body frame of a vehicle includes a collision load decentralization member coupled to an A pillar of a side outer panel, the A pillar being divided into a lower reinforcement part, an intermediate reinforcement part, and an upper reinforcement part, where the collision load decentralization member decentralizes a collision load transferred from a tire by a collision deformation to a door load decentralization flow path passing through the intermediate reinforcement part and a side sill load decentralization flow path passing through the lower reinforcement part.