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"A Non-autoregressive Dynamic Model based Welding Parameter Planning Me" by Zhihu Li, Zhimin Hou et al.

Wire and arc additive manufacturing(WAAM) is a promising method for directly manufacturing parts with complex shapes. However, the accuracy of the existing welding parameter planning methods would dramatically decrease when bead geometry changes dynamically due to the long-term dependence, strong coupling, and hysteresis properties of the WAAM process. To this end, a non-autoregressive(NAR) dynamic model is proposed to predict the bead geometry, and an adaptive model predictive control(aMPC) method is proposed to plan welding parameters to achieve high manufacturing accuracy. First, in the proposed dynamic model, the long-term dynamic characteristics of the WAAM process are modeled by a resample long short-term memory(Re-LSTM) network by considering the fluidity of the welding pool, which is the crucial factor of dynamic characteristics of the welding process. Second, in the proposed aMPC method, the strong coupling is addressed by high multi-objective performance, and the hysteresis i ....

Adaptation Models , On Autoregressive Dynamic Model , Predictive Models , Process Control , Solid Modeling , Arying Geometry Beads , Elding Parameter Planning ,

MSNBC The January 6th Hearings The House Investigates June 4, 2024 04:06:00

From vantage points for example, near the washington monument, where there were large crowds of trump supporters, and we re conveniently, those folks didn t need to go through metal detectors, or have any weapons confiscated. that sense of physical space, physical geometry, the physical relationship between things and people, it also ended up today being crucial to understanding how it might be that the president allegedly engaged in a physical altercation with a head of a secret security, secret service detail. the president reportedly lunging at the man s and neck with one hand, after the president had tried to grab the steering wheel of a vehicle he was riding in, with the other. so, unexpectedly, a physical sense of space inside that car, inside the west wing, and apparently, armed to the teeth on the national mall, those were all revelations today for which we need to sort of physical put ourself into space in order to get it. ....

Metal Detectors , Vantage Points , Washington Monument , Secret Service , Steering Wheel , Riding In , West Wing , National Mall ,

MSNBC The January 6th Hearings The House Investigates June 4, 2024 00:04:00

West wing. she was a special assistant to president trump, and an adviser to white house chief of staff mark meadows. she worked very closely with mark meadows on a day-to-day basis. at the outset of the hearing, interestingly, that investigations chairman, congressman benny thompson, despite a little map, showing how the west wing s laid out, to show both how small overall the west wing is, and also, how cassidy hutchinson s desk was physically right in the middle of the action that she described during her testimony today. it ended up being unexpectedly helpful, piece of orientation, and that was a recurring theme today. that idea of physical proximity, understanding the geography and the geometry of where people were, how physical spaces were laid out. that ended up being a recurring helpful theme in today s hearing, in today s testimony. there was a key point today in understanding that today s witness had her desk, just outside the office of the white house chief of staff. ....

Donald Trump , January 6th Hearing , White House , Chief Of Staff , He Briefs Mark Meadows , Congressman Benny Thompson , West Wing , Eyewitness Testimony , Cassidy Hutchinson ,

MSNBC The January 6th Hearings The House Investigates June 4, 2024 00:05:00

And literally, a few feet from the oval office, and the oval office night in room, which we would soon learn is why she could overhear a commotion in that room, when the president through his lunch plate against the wall, and splattered the room with ketchup. it s also why later she was able to hear discussions from that same room, about the president s supporters, screaming about their desire to hand the vice president mike pence, and what president trump thought about that idea. that physical geometry, getting a sense of space itself, was also key to understanding that on the morning of january 6th, large crowds of trump supporters could see the presidents rally, could hear the presidents speech, not just from the ellipse itself, for the rally was formally staged, but from outside it as well. from vantage points for example, near the washington monument, where there were large crowds of trump supporters, and we re conveniently, those folks didn t need to go through metal detectors, o ....

Oval Office , Lunch Plate , Donald Trump , Vice President , Mike Pence , Ellipse Itself , January 6th Investigation , January 6th , Metal Detectors , Vantage Points , Washington Monument ,

MSNBC The January 6th Hearings The House Investigates June 4, 2024 04:04:00

Really happen? yes, that really happened. we are here for you tonight. today, at the hearing, there was but a single witness, the first trump white house official to testify at one of his live hearings. the trump administration white house staffer, named cassidy hutchinson. she had an office inside the west wing. she was a special assistant to president trump, and an adviser to white house chief of staff mark meadows. she worked very closely with mark meadows on a day-to-day basis. at the outset of the hearing, interestingly, that investigations chairman, congressman benny thompson, despite a little map, showing how the west wing s laid out, to show both how small overall the west wing is, and also, how cassidy hutchinson s desk was physically right in the middle of the action that she described during her testimony today. it ended up being unexpectedly helpful, piece of orientation, and that was a recurring theme today. that idea of physical proximity, understanding the geography and ....

January 6th Hearing , White House , Cassidy Hutchinson , West Wing , Donald Trump , Chief Of Staff , Congressman Benny Thompson , He Briefs Mark Meadows , Eyewitness Testimony ,