r***l
发帖数: 298 | 1
STEM is being liberalized into LIBERAL ARTS, producing a SH*TLOAD of
advanced degree holders in rapid sucession while generating no impact on
industry.
Who cares about STEM PhDs these days, except the PIs to get more funding to
keep the show?
The SH*TLOAD of advanced degree holders typically look for alternative
careers in consulting, IB, IP, etc.
The SH*TLOAD of advanced degree holders
The same SH*TLOAD of advanced degree holders
Seriously, the IP legal market is slowly sinking. Clients are c... 阅读全帖 |
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r***l
发帖数: 298 | 2
STEM is being liberalized into LIBERAL ARTS, producing a SH*TLOAD of
advanced degree holders in rapid sucession while generating no impact on
industry.
Who cares about STEM PhDs these days, except the PIs to get more funding to
keep the show?
The SH*TLOAD of advanced degree holders typically look for alternative
careers in consulting, IB, IP, etc.
The SH*TLOAD of advanced degree holders
The same SH*TLOAD of advanced degree holders
Seriously, the IP legal market is slowly sinking. Clients are c... 阅读全帖 |
|
I******a
发帖数: 3812 | 3 Untrue. It collects a sh*tload of taxes for that NOTHING. |
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a********l
发帖数: 39524 | 4 sh!t tastes better when it comes in a sh!tload... |
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p***e
发帖数: 472 | 5 a motor has the following equations:
Eq. 1: d[Flux]/dt = [V] - R[i] +/- w * [Flux]
Eq. 2: [Flux] = [wL] * [i]
Eq. 3: Torque = [Flux] * [i]
Eq. 4: dw/dt = Torque - Tload
Eqs. 1 & 2 apply to both stator and rotor, just change the voltage values
accordingly.
To model a motor:
1, calculate theta from the integration of w;
2, transform v, i from abc to dq
3, from v and i, calculate Flux for next step;
4, from Flux, calculate i for next step;
5, from Flux and i of next step, calculate torque ... 阅读全帖 |
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