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This paper is devoted to the problem of designing a sparsely distributed sliding mode control for networked systems. Indeed, this note employs a distributed sliding mode control framework by exploiting (some of) other subsystems' information to improve the performance of each local controller so that it can widen the applicability region of the given scheme. To do so, different from the traditional...
In this paper, we propose an adaptive resource allocation algorithm based on space-frequency-time domain grouping (SFTDG) for multiple-input multiple-output orthogonal-frequency-division-multiplexing (MIMO-OFDM) system. The MIMO-OFDM channel can be decomposed into a group of parallel subchannels by singular value decomposition (SVD). Firstly, the subchannels of the first frame are grouped in space...
In this paper, we present a novel method for seamlessly mosaicking panoramic images based on superpixels in the graph cuts energy minimization framework. To effectively ensure that all seamlines are detected in the laterally continuous regions with the high image similarity and the low object dislocation, the energy functions adopted in graph cuts combine the pixel-level similarities of image characteristics,...
To meet the requirements of the next high generation high-performance networking switches and routers, system integration based on the Three-dimensional (3D) System-in-Package (SiP) technology is being studied and developed. In this paper, we report the development of a 3D SiP using the organic interposer technology. A 3D SiP is designed and manufactured with a large size organic interposer with fine-pitch...
In this paper, we designed a group of horizontal Hall sensors in 0.35 µm BCD (bipolar/CMOS/DMOS) technology. Compared with the existing Hall devices, the design has improvement in parts such as Hall cell parameter set and layout design under BCD technology. And then the Hall chip is taped out. The results from the precise experiment of the Hall cell verify the optimization method which can be used...
In this letter, a WR-1.0 rectangular waveguide band-pass filter is designed, which is fabricated using the deep reactive ion etching (DRIE) micromachining on silicon wafers. The filter consists of four inductive irises. Using Ansoft HFSS, the center frequency of the filter is at 805GHz and the insertion loss is about 1.5 dB within the 21GHz bandwidth. Effects of the DRIE process brought to the filter...
WR-1.0 rectangular waveguide cavity band-pass filter based on micromaching technique is designed in this letter. The filter consists of two resonant cavities. A transmission zero is implemented by means of broaden stubs. The stub is broaden to the width of the resonant cavity, which simplify the fabrication. The proposed filter is fabricated using the deep reactive ion etching (DRIE) micromachining...
Micro blogging is fast becoming a dominant medium in social media and its impact is evident in our daily lives. A massive amount of information is produced on a daily basis. It is observed that detecting hot topics can be very helpful for people to get essential information quickly. But due to short and sparse features, high flood of meaningless tweets and other characteristics of micro blogs, traditional...
To enable three-dimensional (3D) ASIC and memory integration, large-size silicon interposer is a critical technology [1]. Currently most silicon interposers are manufactured by wafer foundries and are limited in size by the wafer lithographic processing. In this study, manufacturing of cost- and performance-effective, large-size silicon interposers are investigated. The existing supply chain and infrastructure...
In this work, the effect of high temperature storage (HTS) on the stress in and around Cu TSVs in 3D stacked chips is studied by scanning white beam x-ray microdiffraction. The x-ray microdiffraction measurements were conducted on different die levels in the stacked chips before and after HTS test. High resolution mappings of stress distribution were obtained and compared between pre-HTS and post-HTS...
The characteristics of thermal stresses in a five-stacked memory dies containing through-silicon vias (TSVs) were measured with synchrotron x-ray microdiffraction. The measurements were performed in and around the Cu vias for both the top and bottom dies. With scanning white beam x-ray microdiffraction, high resolution mappings of stress distribution were obtained. The results provided a direct observation...
operation state monitoring of equipment is vital to ensure reliable operation in nuclear power plant (NPP). Wireless sensor network can reduce monitoring cost, enlarge monitoring range, and improve monitoring quality, and relay nodes placement is a fundamental way to form efficient and reliable wireless sensor network. Current placement research do not consider NPP special problems, such as obstacles...
Copper chemical mechanical polishing (CMP) and wafer thinning technologies have been challenges for Through Silicon Via (TSV) interconnect in recent years. In this work, copper CMP slurry and process and wafer level thinning with temporary bonding were studied in detail. The concentration of peroxide (H2O2), citric acid, SiO2 particle and Benzotriazole (BTA) in the CMP slurry and their effects were...
The bandwidth for high performance networking switches and routers increases two to ten times in every new generation. This in turn drives the bandwidth requirements for the Application Specific Integrated Circuits (ASICs) and their external memory devices designed for the high performance network systems. 3D IC integration with its low power, high density and high bandwidth advantages is proposed...
We address the structure-preserving model reduction problem of uncertain large-scale systems. The uncertainties under consideration include local uncertainty and interconnection uncertainty, both of which are modeled in terms of IQCs. The performance of the reduced-order system is justified in H∞ sense. It is shown that the feasibility of a collection of rank constrained LMIs is both sufficient and...
Objective To evaluate the feasibility of applying low contrast medium volume in cervicocranial artery angiography with 256-slice CT. Materials and methods 30 patients undergoing cervicocranial artery CTA were enrolled into this study, and the patients were injected with low contrast medium volume (50 mL). Results the mean enhancement of the total segments was (292.50±80.70) HU. About 7 of 330 (97...
Based on the performance of role confusion in the process of patent technology industrialization, we propose requests of different actors' role correction, discuss the significance of establishing role location dynamic mechanism, and construct the path to realize role modified.
An evident fault occurs on the insulator surface accompanied by a remarkable insulator strength decline were detected, which is probably caused by the SF6 decomposition products in the insulator flashover process. A simulation of flashover process on the insulator surface was built in this article in order to analyze the possible decomposition product of SF6. As a result, several specific decomposition...
Vanadium oxide(VOx) is one kind of mixture with different valences, and in addition to vanadium dioxide(VO2), the optical properties of other vanadium oxidations with different valences get few attention. In the present study, VOx thin film was grown on silicon substrates by direct current facing targets magnetron sputtering. VOx thin film was characterized by XPS (X-ray photoelectron spectroscopy)...
In this paper, we study the equilibriums of the general Cell transmission models (CTM) and the general Lagged Cell transmission models (LCTM). Theoretical analyses show that different CTMs and LCTMs converge to a two-segment almost piecewise-linear equilibrium state with similar shapes, although the variety of the traffic flow-density relationships (fundamental diagram, FD) and the existence of the...
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