Many of China’s older buildings, built in the 1970s and 1980s, faces several indoor temperature heating energy consumption problems. Based on an investigation analysis old hotel Urumqi, this paper proposes a renovation plan to improve reduce consumption, thereby introduce sustainable development strategy for winter. The effects different plans were simulated using DesignBuilder PVsyst software....

Abstract This study investigated the hygrothermal performance of five insulation systems for internal retrofitting purposes. Focus was on near partition brick walls compared to middle wall. The setup comprised two insulated reefer containers with controlled indoor climate, reconfigured several holes containing solid masonry interior embedded wooden elements, an wall and different systems, witho...

Abstract Life-cycle assessments are often performed on ideal cases where errors or accidents not taken into account. This might give a wrong indication of the potential impacts as and do occur part building construction. Thus, for specific case in Greenland construction an exterior wall, we evaluated environmental errors. Both related to correcting if were left uncorrected. We compared our resu...

This article treats connections on ber bundles B = P G F that are induced by a connection 1-form on the associated principal bundle P. Using horizontal lifts of vector elds it is shown which combinations of diierential forms on the ber F and on P canonically deene diierential forms on B. Local representations for these forms involving the gauge potentials and elds of the connection are given an...

Bryant and Salamon constructed metrics with holonomy G2 and Spin(7) on spin bundles of 3-dimensional space forms, and spin bundles and bundles of anti-self-dual 2-forms on self-dual Einstein 4-manifolds [BrS]. Since, apart from holonomy, the construction of integrable G2(respectively Spin(7)) structures amounts to finding differential 3(4)forms of generic type on 7(8) manifolds satisfying appro...

This article explores several aspects of the three-dimensional concrete printing (3DCP) industry. More specifically, it begins with a literature review discussing background this technology. also challenges that industry is currently facing. In way, knowledge gap identified. there are few studies have explored structural and thermal performance typical walls printed in Therefore, we used simula...

This article presents the modern state of energy-efficient residential building exterior wall constructions from aerated concrete, and main properties concrete are analyzed. Properties composite materials, strength, heat-technical depending on their structure considered. Also, analysis existing problems in obtaining Republic Uzbekistan is presented. The results research use industrial waste hav...

Exterior tomographic data are taken over lines outside a central region, and such data occur in the industrial nondestructive evaluation of large objects such as rockets. We explain, using microlocal analysis, which singularities are well reconstructed from exterior data, and we explain how this phenomenon is reflected in the singular value decomposition for the exterior transform [E.T. Quinto,...