wireless power transfer (wpt) |
10 |
wireless power transfer |
8 |
climatic changes -- china -- hong kong |
6 |
environmental protection -- china -- hong kong |
6 |
magnetic resonance |
6 |
power resources -- china -- hong kong |
6 |
renewable energy sources -- technological innovations -- china -- hong kong |
6 |
electric vehicle |
5 |
magnetic resonant coupling (mrc) |
5 |
receivers |
5 |
transmitters |
5 |
wireless communication |
5 |
wireless lighting |
5 |
wireless sensor networks |
5 |
direct-drive |
4 |
electric vehicle (ev) |
4 |
energy encryption |
4 |
induction heating |
4 |
permanent magnet (pm) |
4 |
security |
4 |
burst firing control (bfc) |
3 |
coils |
3 |
communication system security |
3 |
continuous frequency-and-duration adjustment |
3 |
control strategies |
3 |
dc grid |
3 |
dc micro-grid |
3 |
dimming control |
3 |
double-stator |
3 |
doubly-salient machine |
3 |
drones |
3 |
electric vehicles |
3 |
energy delivery |
3 |
energy-on-demand |
3 |
finite element method |
3 |
finite-element-method (fem) |
3 |
flux control |
3 |
flux regulation |
3 |
flux-modulation |
3 |
frequency modulation |
3 |
frequency-and-duration chaos |
3 |
grid systems |
3 |
harmonic analysis |
3 |
high intensity discharge lamps |
3 |
high quality power |
3 |
high temperature superconductor |
3 |
high-intensity discharge (hid) lamp |
3 |
ignition |
3 |
inverters |
3 |
lcc-compensated network |
3 |
magnetic quasi-resonant coupling (mqrc) |
3 |
magnetic resonant coupling |
3 |
magnetic-geared machine |
3 |
multi-phase |
3 |
permanent magnet machine |
3 |
permanent-magnet machine |
3 |
plug-in electric vehicle |
3 |
reluctance motors |
3 |
separately excited dc motor |
3 |
servomotors |
3 |
smart energy delivery |
3 |
smart grid |
3 |
static variable capacitor |
3 |
time-division multiplexing (tdm) |
3 |
topology |
3 |
variable-power variable-frequency control (vpvf) |
3 |
vernier machine |
3 |
vernier structure |
3 |
wireless energy security |
3 |
wireless power and drive transfer (wpdt) |
3 |
3d finite element method (3d-fem) |
2 |
all-metal induction heating (ih) |
2 |
all-utensil induction heating |
2 |
alnico |
2 |
analytical modeling |
2 |
axial flux |
2 |
axial-flux |
2 |
axial-flux (af) machine |
2 |
battery management |
2 |
bipolar operation |
2 |
boron compounds |
2 |
burst firing control |
2 |
capacitance |
2 |
chaos |
2 |
charging (batteries) |
2 |
charging infrastructure |
2 |
charging strategy |
2 |
coil design |
2 |
computer applications |
2 |
computer graphics. |
2 |
conferences |
2 |
contactless charging |
2 |
controllability |
2 |
controllable output |
2 |
cooking |
2 |
cosimulation |
2 |
cost effectiveness |
2 |
cost-effectiveness |
2 |
cost-effectiveness comparison |
2 |
cost-emission optimization |
2 |
costeffectiveness comparison |
2 |
coupled magnetic resonance |
2 |
cup rotor |
2 |
dc-field excitation |
2 |
dc-field generator |
2 |
dc-to-dc converters - design and construction - data processing. |
2 |
direct drive |
2 |
directdrive |
2 |
domestic appliances |
2 |
double stator |
2 |
double-stator (ds) |
2 |
double-stator machine |
2 |
doubly salient |
2 |
doubly salient machine |
2 |
doubly-excited machine |
2 |
doubly-salient |
2 |
dual-memory |
2 |
dual-memory machine |
2 |
dual-memory machine. |
2 |
dual-resonant |
2 |
dual-resonating-frequency (drf) compensation |
2 |
dynamic regulation |
2 |
eddy currents |
2 |
electric machine |
2 |
electric motors, synchronous - automation. |
2 |
electric propulsion |
2 |
electric variable transmission (evt) |
2 |
electric vehicles (evs) |
2 |
electrical-offset |
2 |
electrically controlled gear ratio |
2 |
electromagnetic field effects |
2 |
electromagnetic gear (emg) |
2 |
electronic differential |
2 |
emc |
2 |
emi |
2 |
energy management |
2 |
energy securit |
2 |
energy security |
2 |
energy transfer |
2 |
fault signature |
2 |
fault tolerance |
2 |
fault-tolerant |
2 |
fault-tolerant network |
2 |
fault-tolerant operation |
2 |
field current control |
2 |
field modulation |
2 |
field modulation effect |
2 |
finite element analysis |
2 |
finite element analysis (fea) |
2 |
finite-element method (fem) |
2 |
flux leakage |
2 |
flux switching |
2 |
flux-mnemonic machine |
2 |
flux-mnemonic machine. |
2 |
flux-reversal |
2 |
flux-switching |
2 |
flux-switching machine |
2 |
flux-weakening |
2 |
fractional-slot |
2 |
free-piston generator |
2 |
frequency regulation |
2 |
gear-ratio-changing |
2 |
gear-shifting ability |
2 |
gearless |
2 |
generator |
2 |
genetic algorithm |
2 |
gridable electric vehicles (gevs) |
2 |
gridable vehicle |
2 |
gridable vehicles |
2 |
harmonic-shift |
2 |
high coercivity |
2 |
high-frequency-resonating (hfr) |
2 |
high-order compensation |
2 |
high-order lcc transformation |
2 |
homogeneous heating |
2 |
hts |
2 |
hybrid electric vehicle |
2 |
hybrid electric vehicle (hev) |
2 |
hybrid ev (hev) |
2 |
hybrid excitation |
2 |
hybrid excited machine |
2 |
hybrid field excitation |
2 |
hybrid frequency pacing (hfp) |
2 |
hybrid machine |
2 |
hybrid machine, permanent magnet (pm) machine |
2 |
hybrid motor |
2 |
hybrid propulsion |
2 |
hybrid-excitation machine |
2 |
hybrid-excited |
2 |
hybrid-structure machine |
2 |
hysteresis model |
2 |
implants |
2 |
in-pipe pumping |
2 |
in-wheel direct drive |
2 |
in-wheel motor drive |
2 |
inductance |
2 |
inductive power transfer |
2 |
integrated starter generator (isg) |
2 |
integrated starter-generator (isg) |
2 |
integrated startergenerator (isg) |
2 |
integrated-starter- generator |
2 |
key word efficiency optimization |
2 |
linear machine |
2 |
linear machines |
2 |
linear magnetic gear |
2 |
linear magnetic-geared machine |
2 |
load regulation |
2 |
loss analysis |
2 |
low-frequency-switching (lfs) |
2 |
machine analysis |
2 |
machine design |
2 |
magnet proportioning |
2 |
magnetic differential (magd) |
2 |
magnetic extender |
2 |
magnetic field analysis |
2 |
magnetic field editing |
2 |
magnetic field editing (mfe) |
2 |
magnetic field measurement |
2 |
magnetic gear |
2 |
magnetic inductive coupling |
2 |
magnetic leakage |
2 |
magnetic resonant modulation (mrm) |
2 |
magnetic sensors |
2 |
magnetic steering (ms) |
2 |
magnetic variable gear (mvg) |
2 |
magnetic vibration |
2 |
magnetics |
2 |
magnetless |
2 |
magnetless machine |
2 |
magnets, permanent. |
2 |
mars rover |
2 |
maximum power tracking |
2 |
maximum-power-point tracking (mppt) |
2 |
mechanical offset |
2 |
mechanical variable gear |
2 |
mechanical-offset |
2 |
medical sciences |
2 |
memory machine |
2 |
memory machine. |
2 |
microcomputers. |
2 |
modulation-ring |
2 |
motor drives |
2 |
multi-coil system |
2 |
multi-frequency |
2 |
multi-input |
2 |
multi-resonating |
2 |
multi-topologies |
2 |
multicurrent control |
2 |
multifrequency |
2 |
multimode operation |
2 |
multiphase |
2 |
multiple receivers |
2 |
multiple transmitters |
2 |
multiple-coil system |
2 |
multitoothed / torque ripple reduction |
2 |
multitoothed structure |
2 |
mutual inductance calculation |
2 |
neodymium iron borons |
2 |
noise analysis |
2 |
non- rare-earth |
2 |
non-rare-earth |
2 |
non-rare-earth element |
2 |
nonrare earth |
2 |
omnidirectional energy harvester |
2 |
omnidirectional wireless power transfer (wpt) |
2 |
on-off keying modulation (ook) |
2 |
open circuit fault |
2 |
optimal current vector |
2 |
optimization |
2 |
optimized efficiency |
2 |
orthogonal bipolar coupler |
2 |
outer rotor |
2 |
outer-rotor |
2 |
parallel-hybrid-excited |
2 |
parity-time (pt) symmetry |
2 |
partitioned stator |
2 |
permanent magnet |
2 |
permanent magnet (pm) machine |
2 |
permanent magnet machine. |
2 |
permanent magnets |
2 |
permanent magnets (pms) machine |
2 |
permanent-magnet (pm) brushless (bl) drives |
2 |
permanent-magnet (pm) brushless machine |
2 |
permanent-magnet (pm) machine |
2 |
permanent-magnet (pm) motor |
2 |
permanent-magnet motor |
2 |
permanent-magnet motor drive |
2 |
phase-shift control (psc) |
2 |
photovoltaic (pv) |
2 |
pipelines |
2 |
piping network |
2 |
plug-in hybrid electric vehicle |
2 |
pole-changing |
2 |
power adaption |
2 |
power densities |
2 |
power distribution |
2 |
power grid |
2 |
power loss minimization |
2 |
pulse frequency modulation |
2 |
pulse frequency modulation (pfm) |
2 |
pwm |
2 |
quantitative comparison |
2 |
rails |
2 |
range-extended electric vehicle (re-ev) |
2 |
rare earth |
2 |
rare-earth |
2 |
rare-earth element |
2 |
rechargeable batteries |
2 |
regenerative shock absorber (rsa) |
2 |
relative positions |
2 |
reluctance machine |
2 |
remedial operation |
2 |
renewable energy |
2 |
renewable generation |
2 |
resistance |
2 |
ropeless elevator |
2 |
rotors |
2 |
sandwiched-coil structure |
2 |
selectability |
2 |
selectivity |
2 |
self-searching control (ssc |
2 |
sensor arrays |
2 |
separately excited modulation (sem) |
2 |
short circuit fault |
2 |
smart home |
2 |
stator windings |
2 |
superconducting machine |
2 |
superconducting magnetic energy storage |
2 |
superconducting magnetic energy storage (smes) |
2 |
switched reluctance machine |
2 |
switches |
2 |
time-stepping finite element method |
2 |
topology-reconfigurable |
2 |
traffic energy internet |
2 |
transceiver |
2 |
transportation |
2 |
tunneling magnetoresistance |
2 |
turning |
2 |
underground drainage system |
2 |
unit commitment |
2 |
unite element method |
2 |
variable gear ratio |
2 |
variable reluctance machine |
2 |
vehicle to grid (v2g) |
2 |
vehicle to home (v2h) |
2 |
vehicle to vehicle (v2v) |
2 |
vehicle-to-grid |
2 |
vehicle-to-grid framework |
2 |
vehicle-togrid (v2g) |
2 |
wind power |
2 |
wind power generation |
2 |
windings |
2 |
wireless charging |
2 |
wireless direct-drive motor control (wdmc) |
2 |
wireless energy router |
2 |
wireless energy trading (wet) |
2 |
wireless motor |
2 |
wireless pipeline network |
2 |
wireless power drive |
2 |
wireless power transmission (wpt) |
2 |
wireless switch |
2 |
zero-voltage switching (zvs) |
2 |
ac/dc converters |
1 |
adaptive neuro-fuzzy inference system |
1 |
adaptive time-delayed feedback control (atdfc) |
1 |
aeronautics |
1 |
aeronautics and space flight |
1 |
air gaps |
1 |
air-gap flux |
1 |
analytical calculation |
1 |
analytical method |
1 |
analytical model |
1 |
analytical solution |
1 |
anticontrol of chaos |
1 |
automotive |
1 |
axial-field flux-switching machine |
1 |
backstepping control |
1 |
battery available capacity |
1 |
battery capacity estimation |
1 |
battery capacity indicator |
1 |
battery charging |
1 |
battery energy storage |
1 |
battery modeling |
1 |
battery residual capacity |
1 |
battery residual capacity (bpc) |
1 |
bearingless machine |
1 |
bi-directional |
1 |
bidirectional grid-connected converter |
1 |
bifurcation |
1 |
bipolar drive |
1 |
blac |
1 |
boost converter |
1 |
brushless |
1 |
brushless ac (blac) |
1 |
brushless dc (bldc) |
1 |
brushless dc machine |
1 |
brushless dc machines |
1 |
brushless dc motor |
1 |
brushless dc motors |
1 |
brushless machine |
1 |
brushless machines |
1 |
chaoization |
1 |
chaotic |
1 |
chaotic behavior in systems |
1 |
chaotic pwm |
1 |
chaotification |
1 |
charger and infrastructure |
1 |
charging |
1 |
co-ordinated control |
1 |
coaxial magnetic gear |
1 |
common-mode voltage (cmv) |
1 |
compacted machine |
1 |
comparative study |
1 |
compensation networks |
1 |
complex-conjugate control |
1 |
compliance |
1 |
computer graphics |
1 |
computers |
1 |
connection |
1 |
continuously variable transmission |
1 |
control |
1 |
control strategy |
1 |
controllable loads |
1 |
converter capability |
1 |
converterless |
1 |
cooling dewar |
1 |
current balancing |
1 |
current control |
1 |
d-q frame |
1 |
dc microgrid |
1 |
dc-excited |
1 |
degree of freedom |
1 |
design |
1 |
design and analysis |
1 |
direct torque control |
1 |
direct torque control (dtc) |
1 |
direct-drive machine |
1 |
direct-driven |
1 |
distributed computing |
1 |
distribution grid |
1 |
double stator machine |
1 |
double-rotor machine (drm) |
1 |
double-stator cup-rotor permanent magnet machine |
1 |
double-stator permanent magnet brushless (ds-pmbl) machine |
1 |
doubly fed |
1 |
doubly salient (ds) motor drive |
1 |
doubly salient motor |
1 |
doubly salient motors |
1 |
doubly salient permanent magnet (dspm) |
1 |
doubly-fed stator |
1 |
drive |
1 |
drive system |
1 |
driving pattern |
1 |
ds-pmbl machine |
1 |
dual-magnet |
1 |
dual-mode operation |
1 |
dynamic performance |
1 |
eddy-current loss |
1 |
electric chaoization |
1 |
electric compaction |
1 |
electric drive vehicles |
1 |
electric drives |
1 |
electric driving -- automatic control |
1 |
electric machinery |
1 |
electric machines |
1 |
electric motor |
1 |
electric motors |
1 |
electric power transmission |
1 |
electric variable transmission |
1 |
electric vehicles -- dynamics |
1 |
electric vehicles -- motors |
1 |
electric vehicles power electronics |
1 |
electric vehicles. |
1 |
electrical engineering |
1 |
electrical engineering education |
1 |
electrical machine design |
1 |
electromagnetic characteristic |
1 |
electromagnetic characteristics |
1 |
electromagnetic compatibility |
1 |
electromagnetic field analysis |
1 |
electromagnetic interference |
1 |
electromagnetics |
1 |
electronic ballasts |
1 |
electronic continuously variable transmission |
1 |
electronic-geared (eg) |
1 |
electronics |
1 |
electronics engineering - electrical engineering |
1 |
em2-electric machines applications |
1 |
energy recovery |
1 |
energy sources |
1 |
energy storage |
1 |
energy-efficient technologies |
1 |
engineering |
1 |
equivalent reluctance |
1 |
ev configuration |
1 |
ev drivetrain |
1 |
ev parameter |
1 |
ev powertrain |
1 |
ev propulsion |
1 |
excitation |
1 |
fault-tolerant control |
1 |
fault-tolerant machine |
1 |
fault-tolerant motors |
1 |
fea |
1 |
fem |
1 |
field-modulated machine |
1 |
field-modulated permanent magnet (fmpm) machine |
1 |
field-oriented control |
1 |
field-oriented control (foc) |
1 |
finite element method (fem) |
1 |
finite element methods |
1 |
finite-element analysis |
1 |
finite-element method |
1 |
fluorescent lamps |
1 |
flux concentrating |
1 |
flux mnemonic |
1 |
flux reversal |
1 |
flux switching permanent magnet (fspm) machine |
1 |
flux-mnemonic |
1 |
flux-modulated permanent-magnet compact in-wheel (fmpmcw) |
1 |
flux-modulated wheel motor |
1 |
flux-swiching permanent-magnet motor |
1 |
flux-switching pm motor |
1 |
flywheel |
1 |
force |
1 |
forging |
1 |
four-quadrant transducer (4qt) |
1 |
frequency stabilization |
1 |
fspm |
1 |
fully-decoupled |
1 |
fullydecoupled |
1 |
generators |
1 |
halbach arrays |
1 |
halbach pm array |
1 |
hardware implementation |
1 |
harmonic current |
1 |
harmonic currents |
1 |
harmonic machine |
1 |
harmonic reduction |
1 |
hev |
1 |
hevs |
1 |
hierarchical structures |
1 |
high speed machine |
1 |
high temperature superconducting |
1 |
high thrust force |
1 |
high-temperature superconducting (hts) field winding |
1 |
high-temperature superconductor |
1 |
high-temperature superconductor (hts) |
1 |
homopolar machine |
1 |
homopolar topology |
1 |
ht smes |
1 |
hts bulk |
1 |
hts machine |
1 |
hybrid approach |
1 |
hybrid electric vehicles |
1 |
hybrid electric vehicles (hevs) |
1 |
hybrid electrical vehicle |
1 |
hybrid energy source |
1 |
hybrid energy system |
1 |
hybrid excitation vernier machine |
1 |
hybrid field |
1 |
hybrid system |
1 |
hybrid vehicles |
1 |
hybrid-excitation |
1 |
indicator |
1 |
inductance measurement |
1 |
induction motor |
1 |
induction motor drives |
1 |
inset-type |
1 |
instruments |
1 |
integrated machine |
1 |
integrated starter-generator |
1 |
integrated-starter-generator |
1 |
inverter |
1 |
josephson junction |
1 |
lcl compensation |
1 |
lead-acid battery |
1 |
leakage flux |
1 |
linear generator |
1 |
linear motor |
1 |
linear permanent magnet |
1 |
linear permanent magnet generator |
1 |
linear synchronous machine |
1 |
lithium-ion battery |
1 |
loss |
1 |
low speed |
1 |
low voltage regulation |
1 |
low-frequency |
1 |
low-order |
1 |
low-speed machine |
1 |
lyapunov exponents |
1 |
machinery |
1 |
machinery andengineering |
1 |
machines |
1 |
magnetic circuit |
1 |
magnetic circuits |
1 |
magnetic cores |
1 |
magnetic field distribution |
1 |
magnetic gearing |
1 |
magnetic gearing principle |
1 |
magnetic gears |
1 |
magnetic shielding |
1 |
magnets |
1 |
maximum power point tracking |
1 |
memory motor |
1 |
misalignment |
1 |
mixing |
1 |
mnemonic motor |
1 |
model |
1 |
model predictive control (mpc) |
1 |
modeling |
1 |
motion control |
1 |
motor control |
1 |
motor design |
1 |
motor drive |
1 |
motor-drives |
1 |
motors |
1 |
move-and-charge |
1 |
multilevel inverter |
1 |
multiple input converter |
1 |
multiple-channel csc |
1 |
multiple-frequency |
1 |
multiple-input converter |
1 |
multivector |
1 |
neural network |
1 |
neural network (nn) |
1 |
neural network model |
1 |
neuro-fuzzy |
1 |
neuro-fuzzy control |
1 |
nf-ts-fem |
1 |
nickel-metal hydride (ni-mh) |
1 |
nickel-metal hydride battery |
1 |
nine-phase |
1 |
nine-phase fspm |
1 |
nodal method |
1 |
non-resonant converters |
1 |
observers |
1 |
open slot |
1 |
operating cost minimization |
1 |
operation modes |
1 |
optimal algorithm |
1 |
optimal charging |
1 |
optimal design |
1 |
pacemakers |
1 |
parallel hybrid excitaiton |
1 |
parallel hybrid excitation |
1 |
paralleled magnetic sub-path |
1 |
paralleled vsis |
1 |
partial charging |
1 |
partitioned-stator |
1 |
pd-pmsm |
1 |
permanent magnet (pm) motor |
1 |
permanent magnet brushless dc machine |
1 |
permanent magnet machines |
1 |
permanent magnet motor |
1 |
permanent magnet motors |
1 |
permanent magnet synchronous machine (pmsm) |
1 |
permanent magnet synchronous motor (pmsm) drive |
1 |
permanent-magnet (pm) machines |
1 |
permanent-magnet (pm) motor drive |
1 |
permanent-magnet (pm) motors |
1 |
permanent-magnet brushless machine |
1 |
permanent-magnet machines |
1 |
permanent-magnet motor drives |
1 |
permanent-magnetic (pm) motor |
1 |
permanentmagnet |
1 |
permeance calculation |
1 |
phase-loss |
1 |
phase-shift |
1 |
phev |
1 |
photovoltaic |
1 |
physics |
1 |
physics engineering |
1 |
pi-based |
1 |
piezoelectric |
1 |
piezoelectric motor |
1 |
plug-in hybrid vehicle |
1 |
pm machine |
1 |
poincaré map |
1 |
pole changing |
1 |
policy |
1 |
position measurement |
1 |
power conditioning |
1 |
power convertors |
1 |
power factor (pf) |
1 |
power generation |
1 |
power management |
1 |
power network |
1 |
power quality |
1 |
power splitting |
1 |
powertrain |
1 |
preisach hysteresis |
1 |
pricing |
1 |
primary pm machine |
1 |
proportional-integral (pi) control |
1 |
pseudo-direct-drive |
1 |
pulse width modulation |
1 |
pulsewidth modulation (pwm) |
1 |
pwm inverter |
1 |
range-extended electric vehicle |
1 |
rectifiers |
1 |
reluctance motor drives |
1 |
remedial strategies |
1 |
resonant frequency |
1 |
resonant inverters |
1 |
robots |
1 |
scalar control |
1 |
selective resonant circuits |
1 |
self-inductance |
1 |
self-locking |
1 |
shaded-pole |
1 |
ship propulsion |
1 |
short cylinder |
1 |
simulated discharge pattern |
1 |
simulation tool |
1 |
single-phase |
1 |
sizing equation |
1 |
sliding mode observer (smo) |
1 |
space flight |
1 |
spectral analysis |
1 |
speed control |
1 |
split ratio |
1 |
spoke magnet |
1 |
square wave |
1 |
stability |
1 |
stabilization |
1 |
standing wave |
1 |
state of available capacity |
1 |
state space reconstruction |
1 |
static characteristics |
1 |
stator permanent magnet (pm) machine |
1 |
stator pm |
1 |
stator pm machine |
1 |
stator-flux oriented (sfo) |
1 |
steering system |
1 |
stepping motor |
1 |
subharmonics |
1 |
surface-inset permanent magnet motors |
1 |
switched capacitor |
1 |
switched mode power supplies |
1 |
switched reluctance (sr) |
1 |
switched reluctance (sr) motor |
1 |
switched reluctance motors |
1 |
switched-capacitor |
1 |
switched-flux |
1 |
switching frequency |
1 |
synchronization |
1 |
synchronous reluctance motors |
1 |
system topology |
1 |
taveling-wave |
1 |
teaching methods and curriculum |
1 |
thermoelectric |
1 |
thermoelectric generator |
1 |
thermoelectric systems |
1 |
time stepping finite element method |
1 |
time-delay feedback |
1 |
time-stepping finite element method (ts-fem) |
1 |
time-stepping finite-element method |
1 |
topics |
1 |
torque |
1 |
torque control |
1 |
torque ripple |
1 |
torque ripples |
1 |
torque transmission |
1 |
transportation systems |
1 |
transverse flux |
1 |
transverse flux permanent magnet motor |
1 |
two-phase operation |
1 |
ultracapacitor |
1 |
ultrasonic motor |
1 |
ultrasonic motor (usm) |
1 |
ultrasonic stepping motor |
1 |
v2g |
1 |
variable discharge current |
1 |
variable-structure systems |
1 |
vehicle-to-grid operation |
1 |
vernier motor |
1 |
voltage level |
1 |
washing |
1 |
waste heat |
1 |
waste heat recovery |
1 |
wave energy |
1 |
wave energy conversion |
1 |
wave energy harvesting |
1 |
wave power generation |
1 |
wind energy conversion |
1 |
winding configuration design |
1 |
y/δ |
1 |