As a consequence of the lack of solid conceptual foundation, the project management concepts and techniques usually applied within the construction sector are fragmented and have proved to be incapable of solving the complex problems of design management. As a result, healthcare providers have become frustrated with the outcomes such as cost and schedule overruns, accidents, less than expected ...

Do presidents use federal agencies as campaign resources? Scholars of distributive politics have long argued that political elites use public policy outcomes for electoral benefit. Of late, researchers have focused more closely on the president’s role in this process. However, little work examines how differences across agencies condition agency responsiveness to presidential electoral preferen...

This paper presents a method to simultaneously perform 20 dB acoustic echo cancellation and 15-20 dB speech enhancement using an adaptive microphone array combined with spectral subtraction. Primarily intended for handsfree telephones in automobiles, the microphone array system simultaneously emphasizes the near-end talker and suppresses the handsfree loudspeaker and the broadband car noise. Th...

This paper proposes a stereo acoustic echo suppression method for duplex stereo teleconferencing. Firstly the stereo signals are combined in the frequency domain to build a single-channel signal. Secondly, with the single-channel signal model, an optimal Linearly Constrained Minimum Variance (LCMV) filter based on the Widely Linear theory is derived, which is applied on microphone signal direct...

We study when a union of saturated models is saturated in the framework of tame abstract elementary classes (AECs) with amalgamation. We prove: Theorem 0.1. If K is a tame AEC with amalgamation satisfying a natural definition of superstability (which follows from categoricity in a high-enough cardinal), then for all high-enough λ: (1) The union of an increasing chain of λ-saturated models is λ-...

This paper looks to address the grand challenge of integrating construction materials engineering research within a multi-scale, inter-disciplinary research and management framework for sustainable concrete infrastructure. The ultimate goal is to drive sustainability-focused innovation and adoption cycles in the broader architecture, engineering, construction (AEC) industry. Specifically, a pro...

Engineering and construction project information platforms (ECPIP) for architectural, engineering, and construction (AEC) projects need to support both, project and product management and they need to be highly adaptable to the unique cultures prevailing on different AEC projects. Furthermore, due to the temporal character of projects there is little time to routinize processes around ECPIPs an...

This paper illustrates the advantages of Discrete Cosine Transform (DCT) when it is used in Block least mean square (BLMS) adaptive filter. DCT provides very good energy compaction in speech signals, image signals. So the signal to noise (SNR) is improved. Noise cancellation, Echo cancellation, System identification are the application of adaptive filter. We have proposed the Noise cancellation...