In the past two decades, robotics in construction (RiC) has become an interdisciplinary research field that integrates a large number of urgent technologies (e.g., additive manufacturing, deep learning, building information modelling (BIM)), resulting related literature being both fragmented and vast. This paper explored advances RiC decades using mixed quantitative-qualitative review method. Initially, 940 articles (170 journal 770 conference papers) were identified by keyword-searching...

In this article, scheduling problem of a space-constrained AGV-based prefabricated bathroom units (PBU) manufacturing system is addressed. Space becomes key resource to because very large space required accommodate the settling as well queues. Although line balancing helps reduce queues, still prone deadlock due limited space. Hence, in order prevent situations, production start times PBUs have be controlled. A genetic algorithm proposed with objective decide operation for each workstation...

Low-carbon building design requests an estimation of total embodied carbon as the environmental performance metric for comparison different options in early stages. Due to a lack consensus on system boundaries life cycle assessment (LCA), results obtained by current methods are often disputable. In this regard, paper proposes method estimating based digital twin technology and LCA. The proposed is advantageous over others providing (1) cradle-to-cradle LCA (2) automated data communication...

Traditional A-star algorithms encounter challenges such as an excess of turning points, significant angles, and proximity points to obstacles. These issues can lead increased energy consumption, hinder Automated Guided Vehicles(AGV) motion control, elevate the risk collisions, particularly when cluster near In response, we present improved based path planning algorithm. Our approach addresses these by incorporating innovative modifications cost function, dynamically adjusting weights on...

Ports and cities are intrinsically linked. Port city, which serves as a link between the local global economy, is an integration of both urban port systems. Constrained by different regional structures, have developed various formulations over time. Using two-stage data envelopment analysis (DEA) approach, this paper proposes new method for measuring sustainable development city While previous empirical studies often separate system system, assesses two systems in integrated way. Moreover,...

The construction industry is embracing the digital transformation to streamline process from design build. However, compared with companies, precast concrete (PC) companies seem be slow in adoption of building information modeling (BIM). paper thus intends (1) understand current BIM maturity levels these via a survey among PC companies; (2) develop model for identifying critical success factors (CSFs) influencing companies' view; and (3) give recommendations as well policymakers. From...

Research Article| August 31, 2016 PhasePApy: A Robust Pure Python Package for Automatic Identification of Seismic Phases Chen Chen; aConocoPhillips School Geology and Geophysics, University Oklahoma, Norman, Oklahoma 73019 U.S.A.c.chen@ou.edu Search other works by this author on: GSW Google Scholar Austin A. Holland bAlbuquerque Seismological Laboratory, U.S. Geological Survey, PO Box 82010, Albuquerque, New Mexico 87198 U.S.A. Author Article Information Publisher: Society America First...

Photocontrolled surface-initiated reversible complexation mediated polymerization (photo-SI-RCMP) was successfully applied to fabricate concentrated polymer brushes with complex patterning structures. Positive-type patterned were obtained by photo-SI-RCMP under visible light (550(±50) nm) using photomasks. A particularly interesting finding that negative-type also obtainable in a facile manner. nonspecial UV (250-385 enabled the preparation of pre-patterned initiator surfaces remarkably...

To address current challenges, such as the low visualization of workshops and difficulty in remote control equipment, which are supported by theoretical system digital twin, a method real-time monitoring dynamic bidirectional interaction based on twin is proposed. This aims to realize high-fidelity mapping from virtual workshop physical workshop, laying groundwork for predicting status various production elements workshop. First, research knowledge seven-dimensional model maturity framework...

With the increasing presence of large-scale new energy sources, such as wind and photovoltaic (PV) systems, integrating traditional hydropower with PV power into a hydro–wind–PV complementary system in economic dispatch can effectively mitigate fluctuations. In this study, Markov chains Copula joint distribution function were adopted to quantize spatiotemporal relationships among hydro, PV, whereby runoff, wind, output scenarios generated simulate their uncertainties. A dual-objective...

An automated guided vehicle-based flow production system is used for manufacturing prefabricated bathroom units. One unit can occupy a space of more than 10 m2. Due to large time deviations in sequential processes, queues are formed and greater plant needed. Reducing work-in-progress helps save but renders manufacture less efficient. The research explores better workstation arrangements. open queuing network (OQN) model was approximate the system. Since problem arrangement combinatorial...

As prefabricated buildings play a significant role in the global fight against new coronavirus “COVID‐19,” they attract more attention than other types of buildings. Lean construction helps to improve benefits enterprises and working environment workers. However, are encountering various challenges implementing on‐site lean construction. According cause‐and‐effect relationship, it will be meaningful explore critical causes hindering construction, namely, barriers. Hence, this paper...