Integrating Deconstruction and Recycling Into the Demolition Process in Buffalo, NY

Buffalo’s Comprehensive Plan currently calls for the demolition of 10,000 buildings over a period of ten years. While demolition contractors may recycle a small percentage of the waste created from demolitions, the process generates a great deal of waste that ends up in landfills. Many of the materials that are thrown away after a building is demolished are either reusable or recyclable. In order to lessen the negative environmental impact of building demolition, Buffalo needs to encourage demolition contractors to reuse and recycle more building materials. Even more effective than encouragement is requirement. Buffalo should require a minimum level of recycling in all its demolition contracts

Fine recycled concrete aggregate as a material replacement in concrete production

As a fast and rapid growing nation, Malaysia undergoes a lot of development especially in construction field. Most of the building nowadays are being made mainly using concrete as it provides many favorable features such as satisfactory compressive strength, durability, availability, versatility and cost effectiveness. However, in pursuing the development era, sometimes the authorities overlooked about the construction and demolition (C&D) waste that had been created along the development progress. Construction and demolition waste is becoming a vital issue especially to the environmental aspect in many large cities in the world (Chen et al., 2002). Shen [1] describe C&D waste as the waste which generated from renovation, site clearing, demolition, construction, roadwork, land excavation and civil and building construction. Construction and Demolition (C&D) waste constitutes a major portion of total solid waste production in the world, and most of it is used in landfills .

New Photodetection Method Using Unbalanced Sidebands for Squeezed Quantum Noise in Gravitational Wave Interferometer

Homodyne detection is one of the ways to circumvent the standard quantum limit for a gravitational wave detector. In this paper it will be shown that the same quantum-non-demolition effect using homodyne detection can be realized by heterodyne detection with unbalanced RF sidebands. Furthermore, a broadband quantum-non-demolition readout scheme can also be realized by the unbalanced sideband detection.Comment: 9 pages, 5 figure

The Potential of Deconstruction in Buffalo, New York

Building deconstruction is not a novel idea but represents an ancient practice reinvented for our modern era. Deconstruction is an environmentally friendly (yet fiscally remunerative) alternative to traditional building demolition. Deconstruction is: [t]he process of carefully dismantling a building in order to salvage components for reuse and recycling. Typically, a small team of skilled and licensed professionals disassemble the structure, setting aside the valuable materials for direct reuse or resale, before recycling the rest. In most instances, deconstruction is combined with an element of demolition, with the latter process plugging the gaps not covered by the former process. Deconstruction has traditionally been used successfully with decommissioned military bases and all-wood barns. Building deconstruction is simply an expansion of this practice to both commercial and residential structures. In fact, it can be argued that deconstruction is the original demolition

Construction and Demolition Waste Reduction: Yannell Residence, Chicago IL

This case study is one in a series developed by the Illinois Sustainable Technology Center to highlight techniques for saving money and protecting the environment through reuse and recycling of construction and demolition debris. Goldberg General Contracting was the lead contractor for the two-story 2700SF LEED home. The home incorporates variety of site-related green products including 100% pervious paving, two green roofs, solar panels, and a zero-turf landscape design. Goldberg General Contracting recycled and reused 34.10 tons of material and disposed of 4.82 tons of mixed construction and demolition waste, for a total waste reduction rate of 87.64 percent.published or submitted for publicationnot peer reviewe

Dephasing due to Intermode Coupling in Superconducting Stripline Resonators

The nonlinearity exhibited by the kinetic inductance of a superconducting stripline couples stripline resonator modes together in a manner suitable for quantum non-demolition measurement of the number of photons in a given resonator mode. Quantum non-demolition measurement is accomplished by coherently driving another resonator mode, referred to as the detector mode, and measuring its response. We show that the sensitivity of such a detection scheme is directly related to the dephasing rate induced by such an intermode coupling. We show that high sensitivity is expected when the detector mode is driven into the nonlinear regime and operated close to a point where critical slowing down occurs

Non-demolition measurements of observables with general spectra

It has recently been established that, in a non-demolition measurement of an observable $\mathcal{N}$ with a finite point spectrum, the density matrix of the system approaches an eigenstate of $\mathcal{N}$, i.e., it "purifies" over the spectrum of $\mathcal{N}$. We extend this result to observables with general spectra. It is shown that the spectral density of the state of the system converges to a delta function exponentially fast, in an appropriate sense. Furthermore, for observables with absolutely continuous spectra, we show that the spectral density approaches a Gaussian distribution over the spectrum of $\mathcal{N}$. Our methods highlight the connection between the theory of non-demolition measurements and classical estimation theory.Comment: 22 page

National Commission on Human Life Reproduction and Rhythm

A bulldozer continues to work on the demolition of Parks Hall as rubble surrounds the area. (September 1969) [Parks 1969 vol 02 folder, page 39