1. A device for manufacturing a composite laminated structure into which pins are inserted to reinforce in the inter-layer performance or to attach and connect a plurality of laminated members to one another, comprising:
a bottom guide located on a composite laminated structure in a pre- or post-cured state, the bottom guide including first pins that are inserted into a plurality of vertical holes of the composite laminated structure respectively; and
a top guide on the vertical bottom guide, and the top guide including guide pins that are vertically movable at positions corresponding to the first pins.
2. The device for manufacturing a composite laminated structure according to claim 1, further comprising:
a load adding means that is located on the top guide to add more load to the top guide in such a manner that the guide pins are inserted into the holes to press the pins, and thereby to be inserted into the composite laminated structure in a pre- or post-cured state.
3. The device for manufacturing a composite laminated structure according to claim 2, wherein the load adding means adds load using any one or more physical forces which are selected from pressure load addition by curing pressure, vibration load addition by ultrasonic wave or vibration, and gravitation load addition by a gravitational substance.
4. (canceled)
5. The device for manufacturing a composite laminated structure according to claim 1, wherein the bottom guide is attached at its lower surface to a film for preventing deviation of the first pins prior to the process for inserting into the composite laminated structure in a pre- or post-cured state.
6.-9. (canceled)
10. The device for manufacturing a composite laminated structure according to claim 1, wherein the holes have walls formed by pipe or tube walls in the holes.
11. The device for manufacturing a composite laminated structure according to claim 1, wherein the top guide and bottom guide are made of a metal or composite material.
12. A method of producing a manufacturing device of a composite laminated structure according claim 1, comprising the steps of:
a1) laminating a prepreg to form a composite laminated structure, or placing the composite laminated structure in a post-cured state;
b1) placing a release film on the composite laminated structure;
c1) laminating a prepreg for the bottom guide with a thickness reflecting the length of the guide pins;
d1) placing a release film on the laminated prepreg for the bottom guide;
e1) laminating a prepreg for the top guide with a thickness adequate to fix the guide pins on the release film;
f1) applying curing pressure onto the laminated prepreg for the top guide to cure the composite laminated structure, a body of the top guide, and a body of the bottom guide at the same time; and
g1) having the guide pins in the cured body of the top guide, and forming the holes in the body of the bottom guide.
13. A method of manufacturing a composite laminated structure using a manufacturing device of the composite laminated structure according to claim 1, comprising the steps of:
a2) placing a composite laminated structure in a pre- or post-cured state;
b2) placing a bottom guide including the first pins, which are inserted into the composite laminated structure in a pre- or post-cured state, within the holes;
c2) placing a top guide including guide pins, which are formed at positions corresponding to the first pins, on the bottom guide; and
d2) inserting the first pins into the composite laminated structure in a pre- or post-cured state by pressing the first pins with the guide pins while the top guide and the bottom guide are approaching each other.
14. A composite laminated structure, wherein the structure is made by using a method for manufacturing the composite laminated structure according to claim 13.
15. A method of combining composite laminated structural members using a manufacturing device of the composite laminated structure according to claim 1, comprising the steps of:
a3) placing composite laminated structural members in which a bottom composite laminated structural member, and top composite laminated structural members are sequentially arranged from the bottom, on a work table;
b3) placing a bottom guide including the first pins, which are inserted into the laminated composite laminated structural members within the holes, on a combining portion of the laminated composite laminated structural members;
c3) placing a top guide including guide pins, which are formed at positions corresponding to the first pins, on the bottom guide; and
d3) inserting the pins into the composite laminated structure in a pre- or post-cured state by pressing the first pins with the guide pins while the top guide and the bottom guide are approaching each other.
16. The method of combining composite laminated structural members according to claim 15, wherein the bottom composite laminated structural member, and top composite laminated structural members are combined through a first combining process including adhesion, compression, and thermal adhesion.
17. A composite laminated structure, wherein the structure is made by using a method of combining the composite laminated structural members according to claim 15.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for separation of fat images and water images according to the two-point Dixon method dependent on the T*2 decay, comprising the steps of:
(S1): with a magnetic resonance data acquisition unit, acquiring three fat-water images from a patient in the unit, respectively corresponding to echoes at echo times TE1, TE2, TE3 after an RF excitation pulse, wherein a first and a third of said fat-water images exhibit the same phase;
(S2): in a processor, calculating a T*2 map from the two equiphase images;
(S3): in said processor, correcting the T*2 influence in one of the two equiphase fat-water images and in the counter-phase fat-water image; and
(S4): in an image computer, reconstructing a pure T*2-corrected fat image and a pure T*2-corrected water image according to the two-point Dixon method using the T*2-corrected equiphase and counter-phase fat-water images from Step (S3).
2. A method according to claim 1, comprising acquiring said fat-water images in step (S1) with the magnetization vectors of water (W) and fat (F) being parallel and pointing either in the same direction (W+F) or in the opposite direction (W\u2212F).
3. A method according to claim 2, wherein step (S2) comprises:
calculating the T*2 map from the two equiphase images ensues by the equation
T
2
*
=
TE
\u2062
\u2062
3
–
TE
\u2062
\u2062
1
ln
\u2061
(
S
1
)
–
ln
\u2061
(
S
3
)
,
\u2062
wherein
S
i
\u2061
(
x
,
y
)
=
(
W
\u2061
(
x
,
y
)
\xb1
F
\u2061
(
x
,
y
)
)
\xb7
\u2147
–
TEi
T
2
*
\u2061
(
x
,
y
)
And represents the measured MR signal for the voxel (x, y) from the i-th echo and i=1, 2, 3.
4. A method according to claim 3, wherein Step (S3) comprises:
correcting the T*2 influence in one of the two equiphase (i=1, 3) fat water images and in the counter-phase (i=2) fat-water image ensues by the equation
S
i
\u2032
=
S
i
\xb7
\u2147
TE
\u2062
\u2062
1
T
2
*
=
W
\xb1
F
.
5. A method according to claim 1, comprising, in step (S1):
acquiring said echoes as spin echoes or gradient echoes, and for spin echoes, replacing T*2 with T2.
6. A magnetic resonance apparatus for separation of fat images and water images according to the two-point Dixon method dependent on the T*2 decay, comprising:
a magnetic resonance data acquisition unit;
a control unit that operates said magnetic resonance data acquisition unit to acquire three fat-water images from a patient in the unit, respectively corresponding to echoes at echo times TE1, TE2, TE3 after an RF excitation pulse, wherein a first and a third of said fat-water images exhibit the same phase;
a processor configured to calculate a T*2 map from the two equiphase images;
said processor being configured to correct the T*2 influence in one of the two equiphase fat-water images and in the counter-phase fat-water image; and
an image computer configured to reconstruct a pure T*2-corrected fat image and a pure T*2-corrected water image according to the two-point Dixon method using the T*2-corrected equiphase and counter-phase fat-water images.
7. A non-transitory computer-readable medium loadable into a computerized system that operates a magnetic resonance imaging apparatus, said non-transitory computer-readable medium being encoded with programming instructions, and said programming instructions causing said computerized system to:
(operate a magnetic resonance data acquisition unit of the magnetic resonance imaging apparatus to acquire three fat-water images from a patient in the unit, respectively corresponding to echoes at echo times TE1, TE2, TE3 after an RF excitation pulse, wherein a first and a third of said fat-water images exhibit the same phase;
Calculate a T*2 map from the two equiphase images;
correct the T*2 influence in one of the two equiphase fat-water images and in the counter-phase fat-water image; and
reconstruct a pure T*2-corrected fat image and a pure T*2-corrected water image according to the two-point Dixon method using the T*2-corrected equiphase and counter-phase fat-water images.