Improved Magnetic Sensitivity of CMOS Vertical Hall Device by Using Partial Implantation Technique

2014 ◽  
Vol 60 (1) ◽  
pp. 45-50
Author(s):  
H. Huang ◽  
Y. Xu ◽  
D. Wang ◽  
J. Wu ◽  
H. Qin
Keyword(s):  
Implantation Technique ◽  
Magnetic Sensitivity

186: Modified Hautmann Neobladder with a two Chimney-Type Ureteroileal Implantation Technique: Significant Decrease of Upper Urinary Tract Complications

2007 ◽  
Vol 177 (4S) ◽  
pp. 62-63
Author(s):  
Oleg Sukonko ◽  
Sergey Krasny ◽  
Sergey Polaykov ◽  
Alexandr Rolevich ◽  
Carsten H. Ohlmann ◽  
...  
Keyword(s):  
Urinary Tract ◽  
Upper Urinary Tract ◽  
Implantation Technique

High Resolution Current Imaging by Direct Magnetic Field Sensing

2003 ◽  
Author(s):  
S.I. Woods ◽  
Nesco M. Lettsome ◽  
A.B. Cawthorne ◽  
L.A. Knauss ◽  
R.H. Koch
Keyword(s):  
Magnetic Field ◽  
High Resolution ◽  
Spatial Resolution ◽  
Great Promise ◽  
Magnetoresistive Sensor ◽  
Magnetic Sensitivity ◽  
Current Lines ◽  
Scanning Squid ◽  
Scanning Fiber ◽  
Ferromagnetic Probe

Abstract Two types of magnetic microscopes have been investigated for use in high resolution current mapping. The scanning fiber/SQUID microscope uses a SQUID sensor coupled to a nanoscale ferromagnetic probe, and the GMR microscope employs a nanoscale giant magnetoresistive sensor. Initial scans demonstrate that these microscopes can resolve current lines less than 10 µm apart with edge resolution of 1 µm. These types of microscopes are compared with the performance of a standard scanning SQUID microscope and with each other with respect to spatial resolution and magnetic sensitivity. Both microscopes show great promise for identifying current defects in die level devices.

scholarly journals Magnetoelastic Coupling and Delta-E Effect in Magnetoelectric Torsion Mode Resonators

Sensors ◽  
2021 ◽  
Vol 21 (6) ◽  
pp. 2022
Author(s):  
Benjamin Spetzler ◽  
Elizaveta V. Golubeva ◽  
Ron-Marco Friedrich ◽  
Sebastian Zabel ◽  
Christine Kirchhof ◽  
...  
Keyword(s):  
Low Frequency ◽  
High Sensitivity ◽  
Element Model ◽  
Mode Number ◽  
Frequency Change ◽  
General Description ◽  
Resonance Modes ◽  
Field Sensor ◽  
Magnetic Sensitivity ◽  
Bending Modes

Magnetoelectric resonators have been studied for the detection of small amplitude and low frequency magnetic fields via the delta-E effect, mainly in fundamental bending or bulk resonance modes. Here, we present an experimental and theoretical investigation of magnetoelectric thin-film cantilevers that can be operated in bending modes (BMs) and torsion modes (TMs) as a magnetic field sensor. A magnetoelastic macrospin model is combined with an electromechanical finite element model and a general description of the delta-E effect of all stiffness tensor components Cij is derived. Simulations confirm quantitatively that the delta-E effect of the C66 component has the promising potential of significantly increasing the magnetic sensitivity and the maximum normalized frequency change ∆fr. However, the electrical excitation of TMs remains challenging and is found to significantly diminish the gain in sensitivity. Experiments reveal the dependency of the sensitivity and ∆fr of TMs on the mode number, which differs fundamentally from BMs and is well explained by our model. Because the contribution of C11 to the TMs increases with the mode number, the first-order TM yields the highest magnetic sensitivity. Overall, general insights are gained for the design of high-sensitivity delta-E effect sensors, as well as for frequency tunable devices based on the delta-E effect.

The implantation technique in His-bundle pacing: evolution and perspectives

EP Europace ◽  
2020 ◽  
Vol 22 (Supplement_2) ◽  
pp. ii3-ii9
Author(s):  
Wei Hua ◽  
Shu Zhang ◽  
Dejia Huang
Keyword(s):  
Implantation Technique ◽  
His Bundle ◽  
His Bundle Pacing

V64 The Phorbas system – a new single incision adjustable male sling: Implantation technique and first results

2014 ◽  
Vol 13 (1) ◽  
pp. eV64 ◽  
Author(s):  
R.M. Bauer ◽  
S. Herschorn ◽  
T.B. Olmedo ◽  
O.D. Reyes ◽  
W. Huebner
Keyword(s):  
Single Incision ◽  
Implantation Technique ◽  
Male Sling ◽  
System A ◽  
First Results

Ahmed glaucoma valve in vitrectomized eyes: An implantation technique to minimize early postoperative fluid-loss hypotony

2021 ◽  
pp. 112067212110122
Author(s):  
Paolo Arpa ◽  
Cristina Arpa
Keyword(s):  
Surgical Technique ◽  
Anterior Chamber ◽  
Previous History ◽  
Implantation Technique ◽  
Fluid Loss ◽  
Ahmed Glaucoma Valve ◽  
Intraocular Hemorrhage ◽  
Hemorrhagic Complications ◽  
History Of ◽  
Choroidal Effusion

Purpose: To describe the application of a modified Ahmed glaucoma valve (AGV) surgical implantation technique in vitrectomized eyes, in order to minimize the risk of early postoperative hypotony, which leads to hemorrhagic complications. Materials and methods: Data of patients implanted with AGV using the surgical technique described were retrospectively reviewed. Inclusion criterion: glaucomatous eyes with previous history of pars plana vitrectomy. Intraocular pressure (IOP) measurement and ophthalmic examination were performed preoperatively and postoperatively weekly for 1 month for the detection of early hypotony, choroidal effusion/detachment, intraocular hemorrhage. The surgical technique consisted in creating a 5 mm long scleral tunnel with a 23 G needle reaching the anterior chamber at the iridocorneal angle, in which the Ahmed glaucoma valve tube was inserted. Results: Ten eyes of 10 patients were included. Median preoperative IOP was 30.5 mmHg [interquartile range (IQR) 28.3–33.0]; median postoperative IOP was 12.0 mmHg (IQR 9.3–13.0) at 1 week, and 12.5 mmHg (IQR 11.0–15.0) at 1 month. In no cases postoperative IOP was <8 mmHg. On the first postoperative day, five (50%) eyes showed few blood clots in the anterior chamber. On the second-week appointment, moderate choroidal effusion was observed in two eyes (20%). No hemorrhagic complications were observed. Conclusions: The creation of a long intrascleral tunnel with a 23 G needle for AGV implantation in vitrectomized eyes could be effective in decreasing leakage through the space between the valve tube and the sclerocorneal tissue. This technique is safe, easy to perform, feasible and fast. Due to its advantages and good postoperative results, it could also be adopted in non-vitrectomized eyes.

scholarly journals Influence of prosthesis design and implantation technique on implant stresses after cementless revision THR

2011 ◽  
Vol 6 (1) ◽  
pp. 20 ◽  
Author(s):  
Markus O Heller ◽  
Manav Mehta ◽  
William R Taylor ◽  
Dong-Yeong Kim ◽  
Andrew Speirs ◽  
...  
Keyword(s):  
Prosthesis Design ◽  
Implantation Technique
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