Abstract: Provided herein are surfactant compounds that can be used to aid in preparation of protein samples for analysis, for example by mass spectrometry.

Abstract: A straw bottle includes a straw bottle body and a cover seat, wherein the cover seat is provided with an opening; an end of a cover is hinged with the cover seat, and another end of the cover is connected with the cover seat in a snap-fit manner to open or close the opening; a straw detachably connected with the cover seat, the straw includes a rigid part and a resilient part arranged at a bottom of the rigid part; when the cover is locked with the cover seat, the cover pushes the straw to make the resilient part be in the pressed and bent state, and the straw retracts back into the opening; and when the cover is unlocked with the cover seat, the resilient part is restored by a resilient force, so as to push the straw out of the opening and the straw pushes the cover up.

Abstract: A straw bottle includes a straw bottle body and a cover seat, wherein the cover seat is provided with an opening; an end of a cover is hinged with the cover seat, and another end of the cover is connected with the cover seat in a snap-fit manner to open or close the opening; a straw detachably connected with the cover seat, the straw includes a rigid part and a resilient part arranged at a bottom of the rigid part; when the cover is locked with the cover seat, the cover pushes the straw to make the resilient part be in the pressed and bent state, and the straw retracts back into the opening; and when the cover is unlocked with the cover seat, the resilient part is restored by a resilient force, so as to push the straw out of the opening and the straw pushes the cover up.

Abstract: The invention relates to the technical field of vehicle charging, and particularly provides a vehicle charging port mounting assembly and a vehicle. The invention aims to solve the problem that existing charging port components have a poor design of mounting structure and thus cannot well meet the usage requirements. To this end, the vehicle charging port mounting assembly of the invention comprises a body side outer panel, a charging port component, a charging port mounting component, a rear wheel cover outer panel and a rear wheel cover outer panel reinforcing plate, wherein the charging port mounting component comprises a mounting bracket and an accommodation support member which is provided with an accommodation chamber, the mounting bracket being disposed in the accommodation chamber and fixedly connected to the accommodation support member, and the accommodation support member being disposed between the body side outer panel and the rear wheel cover outer panel.

Abstract: One example method includes receiving, by the one or more processors, a request to update data stored on a distributed data storage system that comprises a primary server and a plurality of secondary servers, the request comprising data updates; sending, by the one or more processors, an update log instruction to the primary server and the plurality of secondary servers so that each of the primary server and the plurality of secondary servers records a log associated with the request; determining, by the one or more processors, that the log has been recorded; and in response to determining that the log has been recorded, sending, by the one or more processors, a data storage instruction to the primary server and a secondary server of the plurality of secondary servers so that each of the primary server and the secondary server stores the data updates.

Abstract: One example method includes receiving, by the one or more processors, a request to update data stored on a distributed data storage system that comprises a primary server and a plurality of secondary servers, the request comprising data updates; sending, by the one or more processors, an update log instruction to the primary server and the plurality of secondary servers so that each of the primary server and the plurality of secondary servers records a log associated with the request; determining, by the one or more processors, that the log has been recorded; and in response to determining that the log has been recorded, sending, by the one or more processors, a data storage instruction to the primary server and a secondary server of the plurality of secondary servers so that each of the primary server and the secondary server stores the data updates.

Abstract: One example method includes receiving, by the one or more processors, a request to update data stored on a distributed data storage system that comprises a primary server and a plurality of secondary servers, the request comprising data updates; sending, by the one or more processors, an update log instruction to the primary server and the plurality of secondary servers so that each of the primary server and the plurality of secondary servers records a log associated with the request; determining, by the one or more processors, that the log has been recorded; and in response to determining that the log has been recorded, sending, by the one or more processors, a data storage instruction to the primary server and a secondary server of the plurality of secondary servers so that each of the primary server and the secondary server stores the data updates.

Abstract: One example method includes receiving, by the one or more processors, a request to update data stored on a distributed data storage system that comprises a primary server and a plurality of secondary servers, the request comprising data updates; sending, by the one or more processors, an update log instruction to the primary server and the plurality of secondary servers so that each of the primary server and the plurality of secondary servers records a log associated with the request; determining, by the one or more processors, that the log has been recorded; and in response to determining that the log has been recorded, sending, by the one or more processors, a data storage instruction to the primary server and a secondary server of the plurality of secondary servers so that each of the primary server and the secondary server stores the data updates.

Abstract: A discharge device generates stable direct current glow discharges at high gas pressures. The discharge device has a flat cathode that does not utilize microhollows, and has an anode containing an arbitrarily shaped opening. A dielectric having a minimum thickness separates the anode and the cathode by a by a distance of less than one millimeter. The discharge device may be included in a discharge chamber for maintaining the device at a predetermined pressure.