COSINE-100 is a direct detection dark matter experiment that aims to test DAMA/LIBRA's claim of discovery by searching for matter-induced annual modulation signal with NaI(Tl) detectors. We present new constraints on the from dataset 2.82 yr livetime utilizing an active mass 61.3 kg, total exposure 173 kg$\cdot$yr. This result features improved event selection allows both lowering energy thresh...

Three current paths are proposed, and theoretical analysis laboratory tests carried out to investigate the root causes of bearing failure in IGBT inverter-fed locomotives EMUs. The three types that run through drive unit bearings axle box used on EMUs electric classified as primary side path, main traction system path between vehicles EMU or locomotive it hauls. research found EDM caused by com...

The inflammatory response adjacent to implants has not been well-investigated and may influence peri-implant tissue levels. The purpose of this study was to assess, histomorphometrically, (1) the timing of abutment connection and (2) the influence of a microgap. Three implant designs were placed in the mandibles of dogs. Two-piece implants were placed at the alveolar crest and abutments connect...

Various techniques for scleral fixation of IOL in cases of poor capsular support have been described in past. Sutured scleral fixation of IOLs has been attempted for single piece and toric IOLs also. But this predisposes to various suture releated complications. Sutureless fixation of three piece IOLs with or without glue has gained popularity worldwide. However, odd power lenses and high astig...

Rovers will continue to play an important role in planetary exploration. Plans include the use of the rocker-bogie rover configuration. Here, models of the mechanics of this configuration are presented. Methods for solving the inverse kinematics of the system and quasi-static force analysis are described. Also described is a simulation based on the models of the rover’s performance. Experimenta...

This issue of the Journal Open, Flexible and Distance Learning (JOFDL) contains an invited piece from a well-known author in field. The intention is to include subsequent issues. contribution Rick Shearer focuses on theory open, flexible, distance education. choice topic timely given experiences emergency remote teaching (ERT) by teachers academics over last 18 months, prevailing view that onli...