Simultaneous Reconstruction of Absorption and Scattering Maps with Ultrasound Localization: Reflection Geometry

2004 ◽  
Author(s):  
Minming Huang ◽  
Quing Zhu
Keyword(s):  
Ultrasound Localization ◽  
Simultaneous Reconstruction ◽  
Reflection Geometry ◽  
Scattering Maps

Simultaneous reconstruction of optical absorption and scattering maps in turbid media from near-infrared frequency-domain data

1995 ◽  
Vol 20 (20) ◽  
pp. 2128 ◽  
Author(s):  
Huabei Jiang ◽  
Brian W. Pogue ◽  
Michael S. Patterson ◽  
Keith D. Paulsen ◽  
Ulf L. Osterberg
Keyword(s):  
Optical Absorption ◽  
Frequency Domain ◽  
Near Infrared ◽  
Turbid Media ◽  
Simultaneous Reconstruction ◽  
Scattering Maps

Low-energy point-reflection EM

1995 ◽  
Vol 53 ◽  
pp. 610-611
Author(s):  
J. C. H. Spence ◽  
X. Zhang ◽  
J. M. Zuo ◽  
U. Weierstall ◽  
E. Munro ◽  
...  
Keyword(s):  
Low Voltage ◽  
High Vacuum ◽  
Ultra High Vacuum ◽  
Experimental Point ◽  
Crystalline Substrate ◽  
Point Reflection ◽  
Reflection Geometry ◽  
Optical Analog ◽  
Point Projection ◽  
Atomically Flat

The limited penetration of the low-voltage point-projection microscope (PPM) may be avoided by using the reflection geometry to image clean surfaces in ultra-high vacuum. Figure 1 shows the geometry we are using for experimental point-reflection (PRM) imaging. A nanotip field-emitter at about 100 - 1000 volts is placed above a grounded atomically flat crystalline substrate, which acts as a mirror and anode. Since most of the potential is dropped very close to the tip, trajectories are reasonably straight if the sample is in the far-field of the tip. A resolution of 10 nm is sought initially. The specular divergent RHEED beam then defines a virtual source S' below the surface, resulting in an equivalent arrangement to PPM (or defocused CBED). Shadow images of surface asperities are then expected on the distant detector, out of focus by the tip-to-sample distance. These images can be interpreted as in-line electron holograms and so reconstructed (see X. Zhang et al, these proceedings). Optical analog experiments confirm the absence of foreshortening when the detector is parallel to the surface.

Pseudosyndactylic Toe-to-Hand Transfer for Simultaneous Reconstruction of the Thumb and Index Finger

2003 ◽  
Vol 111 (1) ◽  
pp. 355-360
Author(s):  
Selçuk Işik ◽  
Mustafa Nişanci ◽  
Ergin Er ◽  
Haluk Duman
Keyword(s):  
Index Finger ◽  
Simultaneous Reconstruction

scholarly journals A performance-based tabular approach for joint systematic improvement of risk control and resilience applied to telecommunication grid, gas network, and ultrasound localization system

2021 ◽  
Author(s):  
Ivo Häring ◽  
Mirjam Fehling-Kaschek ◽  
Natalie Miller ◽  
Katja Faist ◽  
Sebastian Ganter ◽  
...  
Keyword(s):  
Indoor Localization ◽  
System Development ◽  
Management Practice ◽  
Risk Control ◽  
System Level ◽  
Gas Network ◽  
Counter Measures ◽  
Ultrasound Localization ◽  
Systematic Improvement ◽  
Resilience Assessment

AbstractOrganizational and technical approaches have proven successful in increasing the performance and preventing risks at socio-technical systems at all scales. Nevertheless, damaging events are often unavoidable due to a wide and dynamic threat landscape and enabled by the increasing complexity of modern systems. For overall performance and risk control at the system level, resilience can be a versatile option, in particular for reducing resources needed for system development, maintenance, reuse, or disposal. This paper presents a framework for a resilience assessment and management process that builds on existing risk management practice before, during, and after potential and real events. It leverages tabular and matrix correlation methods similar as standardized in the field of risk analysis to fulfill the step-wise resilience assessment and management for critical functions of complex systems. We present data needs for the method implementation and output generation, in particular regarding the assessment of threats and the effects of counter measures. Also included is a discussion of how the results contribute to the advancement of functional risk control and resilience enhancement at system level as well as related practical implications for its efficient implementation. The approach is applied in the domains telecommunication, gas networks, and indoor localization systems. Results and implications are further discussed.

scholarly journals Simultaneous reconstruction and segmentation for dynamic SPECT imaging

2016 ◽  
Vol 32 (10) ◽  
pp. 104002 ◽  
Author(s):  
Martin Burger ◽  
Carolin Rossmanith ◽  
Xiaoqun Zhang
Keyword(s):  
Spect Imaging ◽  
Dynamic Spect ◽  
Simultaneous Reconstruction

Intra-operative ultrasound localization of an insulinoma undetected pre-operatively

1991 ◽  
Vol 19 (7) ◽  
pp. 419-420 ◽  
Author(s):  
C. A. C. Clyne ◽  
W. J. Greene ◽  
R. B. Paisey
Keyword(s):  
Ultrasound Localization ◽  
Operative Ultrasound

scholarly journals An unusually large aggressive adenomatoid odontogenic tumor of maxilla involving the third molar: A clinical case report

2016 ◽  
Vol 10 (02) ◽  
pp. 277-280 ◽  
Author(s):  
Vikas Dhupar ◽  
Francis Akkara ◽  
Pulkit Khandelwal
Keyword(s):  
Rare Case ◽  
Third Molar ◽  
Odontogenic Tumor ◽  
Adenomatoid Odontogenic Tumor ◽  
Impacted Tooth ◽  
The Third ◽  
Impacted Third Molar ◽  
Simultaneous Reconstruction ◽  
Odontogenic Lesion ◽  
Temporalis Myofascial Flap

ABSTRACTAdenomatoid odontogenic tumor (AOT) is a rare tumor comprising only 3% of all odontogenic tumors. It is a benign, encapsulated, noninvasive, nonaggressive, slowly growing odontogenic lesion associated with an impacted tooth. These lesions may go unnoticed for years. The usual treatment is enucleation and curettage, and the lesion does not recur. Here, we present a rare case of an unusually large aggressive AOT of maxilla associated with impacted third molar. The authors also discuss clinical, radiographic, histopathologic, and therapeutic features of the case. Subtotal maxillectomy with simultaneous reconstruction of the surgical defect with temporalis myofascial flap was planned and carried out.

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