Physical Construction Research Articles

Real-time state synchronization between physical construction robots and process-level digital twins

Real-time state synchronization between physical construction robots and process-level digital twins

Road Quality in Indonesia: Is it Linked to Special Allocation Funds and Political Competition?

This study aims to determine the relationship between decentralization,viewed from a fiscal and political perspective, and the quality ofroad infrastructure in Indonesian regions. This study uses paneldata of 32 provinces in Indonesia in the 2011–2018 and appliedpooled ordinary least square (OLS) estimation with individual fixedeffectsto capture time-variable estimation. Findings/Originality: Theresults show that special allocation funds (DAK) did not significantlyimprove the quality of damaged roads, although the correlation wasnegative. The apparent improvement in the damaged-road ratio ispresumed to be because the government is currently more focusedon the physical construction of roads than on maintenance, so thelevel/quality of road maintenance is still not optimal. The politicalcompetition was found to be negatively related to the improvementof the damaged-road ratio, indicating that political competitionimproved the quality of budget execution in road infrastructureprovision.How to Cite:Saragih, P. N., & Khoirunurrofik , K. (2022). Road Quality in Indonesia: Is It Linked to Special Allocation Funds and Political Competition? Signifikan: Jurnal Ilmu Ekonomi, 11(1), 57-72. https://doi.org/10.15408/sjie.v11i1.21090.

Automatic detection of falling hazard from surveillance videos based on computer vision and building information modeling

In construction sites, safety issue has always been a threatening risk that must be taken seriously. In order to improve the safety management capability of construction site, this paper establishes a construction site fall hazard management system. This system takes computer vision instead of sensor systems as an information exchange bridge between the physical construction site and the virtual model. The main contribution of this paper is to propose a deep learning-based approach to achieve bi-directional information exchange from physical construction sites to digital models. To train the deep learning model, this paper builds a dataset containing approximately 4000 images from multiple sources to detect on-site safety risks. This paper also proposes a method for acquiring coordinates of workers and risk sources, then establishes an automated safety management framework based on the real-time locations of risk sources and workers. The effectiveness of this safety management framework is verified through a case study comparing the differences between safety officers and the automated system. In addition, the method proposed in this paper integrating building information modeling (BIM) with the real construction process, achieving bi-directional coordination between the digital level and the physical level, providing data basis for intelligent construction.

Western And Chinese Development Engagements In Uganda’s Roads Sector: An Implicit Division of Labour

Abstract How has the process of institution and governance building in Africa, a domain traditionally subject to western development interventions, been changed by Chinese-led development? Taking Uganda’s roads sector, and particularly its main implementing agency the Ugandan National Roads Authority as a case study, I argue that traditional donors’ influence on sectorial institution building has not been replaced or dislodged by China’s growing presence. This presence primarily took the form of Chinese construction companies operating as profit-driven contractors interested mainly in quick project turnaround rather than in systematically shaping sectorial governance in the host country. Moreover, not only did traditional donors’ development financing remain dominant vis-à-vis China, but the ways in which their interventions were designed, exercised, and monitored in the post-conditionality regime characteristically differed from their Chinese counterparts, ensuring their embedded and enduring role in the reforming of sectorial state institutions. As such, a tacit division of labour took shape between Chinese and western engagements in Uganda’s roads sector: China focused on ‘hard’ physical road construction whilst traditional donors on the ‘soft’ aspects of sectorial governance and policy. The availability of both forms of development engagements with their distinctive foci enables issue-specific agency for Uganda to develop its roads sector, and yet they together appear to create favourable conditions for the Ugandan leadership’s increasing authoritarianism.

The importance of prototype similarity for physical activity: Cross-sectional and longitudinal associations in a large sample of young adolescents.

ObjectivesPhysical activity declines during adolescence. The Theory of Planned Behaviour (TPB) is a useful framework for investigating activity but leaves variance unexplained. We explored the utility of a dual‐process approach using the TPB and the Prototype Willingness Model (PWM) to investigate correlates of physical activity, and 1‐year change in physical activity, among a large sample of adolescents.DesignA cross‐sectional and longitudinal analysis of baseline and follow‐up data from the Fit to Study cluster‐randomized trial.MethodsA total of 9,699 secondary school pupils at baseline and 4,632 at follow‐up (mean age = 12.5 years) completed measures of past week physical activity and constructs from both behaviour‐change models, at time‐points 1 year apart. Cross‐sectional analyses used multilevel, stepwise regression models to measure the strength of associations between model constructs and physical activity, and variance in behaviour explained by PWM over and above TPB. In longitudinal analyses, change scores were calculated by subtracting follow‐up from baseline scores. Models controlling for trial treatment status measured the strength of associations between change scores, and variance explained.ResultsAt baseline, after controlling for past behaviour, physically active prototype similarity had the strongest relationship with activity after the intention to be active. Change in prototype similarity had the strongest relationship with change in activity after the change in intention and attitudes. Prototype perceptions and willingness explained additional variance in behaviour.ConclusionA dual‐process model incorporating prototype perceptions could more usefully predict physical activity than models based on rational expectations alone. Behaviour‐change interventions promoting an active self‐image could be tested for effects on physical activity.

Theoretical Analysis on the Optimization and Integration of College PE Curriculum Education and Teaching System

The purpose of this study was to promote the development of PE curriculum theory and practice. Literature review method and logical analysis were used in this study. The results showed that physical education curriculum and teaching related ideas are based on optimizing the teaching theory system of integrated physical education. At the macro theoretical guidance level, moral education is the theoretical basis for the construction of sports related curriculum education and teaching ideology. In terms of setting and construction, lifelong physical education is the theoretical basis of school physical education curriculum education and teaching system construction. In the overall construction, we should not only set up a reasonable framework, but also optimize and incorporate high-quality course teaching resources. On the practical level, physical education teaching refers to the relatively stable structure and procedure of physical education activities established under the guidance of certain teaching ideas or teaching theories, which is the theoretical basis for the practice of physical education teaching system. Physical education teaching practice system is the ultimate embodiment of physical education teaching implementation on the basis of physical education teaching ideology and construction system. Based on different groups and different types of physical education courses, the practice path and effect are optimized and integrated, and efficient and feasible physical education teaching practice system is constructed.

News Framing about Physical Construction in Jakarta Flood Management

The 2020 flood in Jakarta has brought people’s attention as it paralyzed the city’s activities. Different than other kinds of natural disaster like earthquake, tsunami, and mountain eruption, flood in Jakarta is a predictable event that could have been anticipated. In natural disasters, there should be a study to acquire the description of media coverage tendency toward the issue. The objects of this research are news published by Kompas (print media) during and post-flood disaster by using the framing method with four elements syntaxis, script, thematic, and rhetoric. The result suggested that news framing focuses no longer on the victims’ misery but on the comprehensive review with highlighted the rational argumentation flood handling from physical construction and resulted in meaningful information on mitigation effort so that natural events would not transform into disaster.

RETRACTED ARTICLE: Brain tumor identification and classification of MRI images using data augmented support vector machine.

Recognition, division, and extraction from images of impaired tumour regions by MRIs are massive issues; a redundant and vast endeavour taken out by radiologists and physicians, nevertheless, is based on their mastery. Picture handling ideas can envision the different physical construction of the human organ. Identification of human cerebrum unusual constructions by essential imaging procedures is testing. In this paper the information increase is performed utilizing strategies like pivoting, editing, zooming and CLACHE evening out. The mind tumor are divided and the component focuses are gathered with the assistance k-implies bunching. The support vector machine classifier (SVM) picture order calculation helps in identifying the tumor at beginning phase with high exactness. This work explains on the joining of the simple k-implies grouping with dropout arrangement with SVM information contention, bringing about another worldview in the all-around investigated field of picture order.

Exploratory Research towards Automated Masonry Construction using UAVs

Unmanned autonomous vehicles (UAVs), also known as drones, are pervasive in modern society for both recreational and business purposes. Construction sites routinely employ UAVs to capture imagery used for photo documentation, progress reporting, surveying, and inspection. Drones can also carry infrared cameras and LIDAR, increasing opportunities for their use on construction sites. They are not limited, however, to remote sensing and photogrammetric applications. Research is pushing the boundaries to explore other UAV opportunities, such as material deliveries and physical construction. This paper reports on exploratory research to investigate current efforts in automated construction of masonry walls using drones and drone swarms. Masonry was chosen due to the repetitive nature of the processes, which increases the probability of successful implementation. The results of a literature review are first presented to establish the state of the art in this area. The proposed approach will be evaluated based on the construction quality in accordance with standards, entailing both accuracy and precision requirements in the laying process. Approaches for continuing research in drone-based masonry construction automation will be outlined and discussed in the conclusion.

Innovation and Practice of Physical Chemistry Curriculum Construction in the Context of New Agricultural Education

Innovation and Practice of Physical Chemistry Curriculum Construction in the Context of New Agricultural Education

One Dimensional Convolutional Neural Networks Using Sparse Wavelet Decomposition for Bearing Fault Diagnosis

This paper proposes a novel algorithm for bearing fault diagnosis using sparse wavelet decomposition for feature extraction combined with a multi-scale one dimensional convolutional neural network (1-D CNN). The proposed algorithm consists of three stages. The first stage determines bearing fault frequency bands according to bearing physical parameters and constructs a sparse wavelet decomposition model. The second stage decomposes a raw bearing signal into multi-resolution signals based on a decomposition structure achieved at the second stage. Finally, the decomposed multi-resolution signal features are fed into the sub-neural networks according to the multi-scale 1-D CNN (MSCNN) network, and then the outputs of the final convolutional/polling layers are concatenated into a single channel which is further used as the input to a fully connected layer. In comparison with the other bearing fault diagnosis methods, our proposed algorithm can achieve a higher classification accuracy of 99.85% using the Case Western Reserve University (CWRU) bearing dataset. The proposed algorithm is successfully validated via our designed experiments.

Determining the factors influencing residential property price: A comparative study between Indonesia and Malaysia

The property is a unique product that cannot be contrasted with other commercial products due to pricing conditions. Property price determination is one of the crucial aspects of property development activities because of the profit margin made by the developer and the purchasing preferences. This study attempts to extend the literature that has largely focused on factors of housing prices in developed markets and provided recent evidence of housing price determinants in two countries (i.e., Indonesia and Malaysia). Thus, this study examines the factors affecting housing prices in Jakarta Metropolitan Region and Greater Kuala Lumpur. A quantitative approach was used involving two countries, namely Indonesia and Malaysia. The data was collected using a survey questionnaire through purposive sampling. A total of 100 respondents (Indonesia) and 134 respondents (Malaysia) participated in this study. The data was analyzed using descriptive (frequency) and inferential statistics (chi-square test and multinomial regression). The results indicated that housing location, property funding, and health have a significant effect on residential property prices in Indonesia. Besides that, the results displayed that housing physical design, home design and construction, developer and real estate products, development concepts, housing location, property funding, social status, health, law provisions, and external factors do not affect residential property price in Malaysia. Despite being neighbors, Indonesia and Malaysia have distinct economic and landscape characteristics. Furthermore, considering Indonesia has a higher number of Covid-19 cases than Malaysia, significant information on how the pandemic has affected the demand, cost, and pricing of residential housing in Jakarta and Kuala Lumpur will be provided. The findings of this study will provide recommendations to investors, buyers, and policy about the residential housing industry's prospects for growth in emerging nations following the pandemic.

K-Banhatti Invariants Empowered Topological Investigation of Bridge Networks

Any number that can be uniquely determined by a graph is called graph invariants. During the most recent twenty years’ innumerable numerical graph invariants have been described and used for correlation analysis. In the fast and advanced environment of manufacturing of networks and other products which used different networks, no dependable assessment has been embraced to choose, how much these invariants are connected with a network graph or molecular graph. In this paper, it will talk about three distinct variations of bridge networks with great capability of expectation in the field of computer science, chemistry, physics, drug industry, informatics, and mathematics in setting with physical and synthetic constructions and networks, since K-Banhatti invariants are newly introduced and have various forecast characteristics for various variations of bridge graphs or networks. The review settled the topology of bridge graph/networks of three unique sorts with three types of K-Banhatti Indices. These concluded outcomes can be utilized for the modeling of interconnection networks of Personal computers (PC), networks like Local area network (LAN), Metropolitan area network (MAN) and Wide area network (WAN), the spine of internet and different networks/designs of PCs, power generation interconnection, bio-informatics and chemical structures.

The correlates of physical activity during COVID-19 pandemic among Indonesian young adults: A longitudinal study.

BACKGROUND:Social distancing policy during the COVID-19 pandemic may affect physical activity levels. This study aimed to compare physical activity levels before and during the pandemic and to explore physical activity correlates among Indonesian young adults.MATERIALS AND METHODS:This longitudinal study was conducted before the pandemic (n = 141) in September 2019 and was followed by an online follow-up survey during the pandemic (79% response rate) in September 2020. Physical activity was measured using the global physical activity questionnaire and was classified into “sufficient” and “insufficient.” The potential correlates of physical activity were constructs from social-cognitive theory and health belief model. Those were measured using a validated questionnaire in the follow-up survey. Physical activity levels before and during pandemics were compared using the Wilcoxon signed-rank test. Simple logistic regressions were used to assess the relationships between each potential correlate and physical activity status during the pandemic.RESULTS:Physical activity levels decreased significantly during the pandemic, mostly in the work-related domain. Participants with favorable physical activity-related constructs were more likely to be physically active. The odds ratio ranged from 3.41 (95% confidence interval [CI] = 1.15–10.11) in participants with higher self-efficacy to 4.50 (95% CI = 1.44–14.06) in those with higher outcome expectations of physical activity.CONCLUSION:A significant decline in physical activity during the COVID-19 pandemic among Indonesian young adults was confirmed. The application of behavioral change theories for explaining physical activity status during the pandemic in this population is also supported. It is recommended to incorporate these constructs to develop physical activity interventions in this target population.

The Reference Value Of The Organic Urban Renewal And Smart Urban Governance Mechanism In Extraterritorial Cities For China

Urban renewal is regarded as a broad concept involving physical, social, economic and environmental aspects, which is closely related to the goal of sustainable urban development. Traditional urban renewal only focuses on the physical construction including economic input, market operation, infrastructure, land use, organization and implementation, which is far from enough. The community functions as the basic place serving the production and life of urban residents, as well as the basic unit of a city. China’s urbanization has entered a new stage of transformation and development focusing on quality improvement. The concept of emphasizing people-centred, connotative development and urban quality improvement has gradually become the theme of current urban renewal in China. Therefore, in recent years, China has been actively promoting the “Double Urban Repairs” reformation, the two programs of “Ecological Restoration” and “City Betterment”, which have become the focus of public and academic concern. However, in the face of the process of urban community renewal in China, there are still plenty of problems to be solved, such as how to realize the organic combination of urban micro-renewal and community micro-renewal in a more scientific, professional and effective way with social governance as the entry point, how to establish and improve the new mechanism of “Ecological Restoration”, “Reformation of People’s Livelihood” and “Smart Social Governance” while maintaining the overall coordination of community, government and enterprises with the core idea of human-oriented, and how to solve the problems of the unclear practical scope of rules and regulations in the implementation of urban community renewal in China, lack of democratic participation and supervision mechanism and the lagging of community self-government law development behind smart urban governance. The rule of law functions as an important basis for realizing the modernization of the national governance system and governance capacity, and the basic guarantee for social governance. Therefore, through the study of extraterritorial experience and development dilemma of urban community renewal in China, this research is expected to find a development path suitable for urban community renewal in China from the aspects of government policy mechanism, rules and regulations, and public participation.

Assessing Safety Issues Experienced by Nigerian Building Site Worker

The term Building Worker refers to any personnel engaged in the physical construction of a building. Just like every other occupation they are faced with challenges in performing their duties. The safety of building construction workers on sites is key to achieving success in any project, when these workers are physically healthy work can go on smoothly as virtually all works on site are dependent on the workers for implementation. Numerous building projects are situated in Abuja, Nigeria with little or no attention being paid to safety issues. This research looked into the level of safety implementation of the Construction companies and the level of safety awareness of the workers in Abuja city. 80 questionnaires were issued, 69 (85%) copies were retrieved. The findings revealed that building site workers in Nigeria lacked the requisite trainings needed to perform their trades. The Construction company’s practice of not providing the basic safety materials and facilities was also exposed. The older workers were aware of their rights as employees on site. Lack of safety training was the major cause of accidents among the workers with minor injuries being mostly experienced. The Unqualified laborers were most frequently engaged in accidents on the sites. Accidents mainly occurred among workers less than 20 years of age. The Governmental agencies need to step up their enforcement activities in order to adequately protect these workers, the available safety regulations need updating and if possible solely Nigerian regulations should be designed.

An Intermediate Unit‐Mediated, Continuous Structural Inheritance Strategy for the Dilemma between Injectability and Robustness of Hydrogels

AbstractHydrogels with injectability and robustness have great promise in clinical practice. However, current injectable hydrogels are usually mechanically weak. Here, an idea, “preformed hydrogel reversion”, is proposed to develop robust injectable hydrogels through an intermediate unit‐mediated, continuous structural inheritance strategy. In this strategy, robust preformed hydrogels are physically disassembled into intermediate injectable structure‐inherited microgels (SIMs), and upon encountering water in physiological environment, the SIMs can construct a macroscopical robust structure with the driving force of hydrogen bonds (H‐bonds). The physical disassembly and construction process enables the inheritance of robust structures through SIMs, thereby realizing both excellent injectability and robustness. Beyond that, the SIMs also exhibit long‐term storage stability and convenient usability. Using protein drug loading and hemostasis as examples, it is demonstrated that the SIM system shows superiorities in biomedical applications. The proposed idea of “preformed hydrogel reversion” can open new horizons for developing robust injectable hydrogels for diverse applications.

WEIZSÄCKER’S RELATIONAL THEORY AND BINARY GEOMETROPHYSICS OF YU. S. VLADIMIROV

The question of the connection between the ideas of relational concepts and the construction of a unified physics by K.F. von Weizsäcker, and binary geometrophysics of Yu.S. Vladimirov. It is shown the initial closeness both of the original premises of the two programs and their main conclusions, which completely coincide. The moments of divergence of the two programs are also shown. This discrepancy is due to the fact that Weizsacker associates the main problem of constructing a unified physical theory with epistemological problems, while in binary geometrophysics the ontological assumptions associated with the concept of pregeometry are taken as a basis.

Multi-Scenario Physical Energy Storage Planning of Integrated Energy Systems Considering Dynamic Characteristics of Heating Network and Demand Response

The configuration of energy storage in the integrated energy system (IES) can effectively improve the consumption rate of renewable energy and the flexibility of system operation. Due to the high cost and long cycle of the physical energy storage construction, the configuration of energy storage is limited. The dynamic characteristics of the heating network and the demand-side response (DR) can realize the space-time transfer of energy. Although there is no actual energy storage equipment construction, it plays a similar role to physical energy storage and can be considered as virtual energy storage in IES planning. In this paper, a multi-scenario physical energy storage planning model of IES considering the dynamic characteristics of the heating network and DR is proposed. To make full use of the energy storage potential of the proposed model, the virtual energy storage features of the dynamic heating characteristics of the heating network and DR are analyzed at first. Next, aiming at the uncertainty of wind turbine (WT) and photovoltaic (PV) output, the scenario analysis method is used to describe the wind and photovoltaic power output with different probabilities. Finally, an electrothermal IES with an IEEE 33-node network and a 26-node heating network serves as an example to verify the effectiveness of the proposed model. The case study shows that the proposed model effectively reduces the physical energy storage configuration and achieves the economic trade-off between the investment cost and the operation cost.

Stylists' and Clients’ perspectives of the black salon-a qualitative study guided by the settings approach theory

This qualitative study assessed stylists' and clients’ perceptions of the physical, cultural, and social constructs within the settings approach theory to inform health promotion intervention development in salon settings serving Black women. Stylists (n ​= ​30) were predominantly Black (96.7%), women (83.3%); clients (n ​= ​39) were well-educated (89.8% with college degree). There was concordance that the physical environment poses challenges to healthy eating; the social environment facilitates information exchange and social support; and the cultural environment embodies a “safe” space for Black women. These results further support the “Black” salon as a viable setting for health promotion education and interventions.