Due to the relatively long period and large capital flow of public-private partnership (PPP) projects, PPP participants are faced with a complex risk situation impeding sustainable project delivery. In recent years, management projects has received increasing attention. this paper, twenty factors associated infrastructure were identified by literature review in-depth case studies. Relationship data for these typical obtained through structured interviews. Based on data, relationship network...

Lean construction has been viewed as an effective management approach for reducing the occurrence of no-value or destructive activities, such wasting resources and safety-related accidents. However, few studies have systematically addressed how to what extent lean practices influence safety. To bridge this gap, a conceptual model is developed validated using system dynamics approach. The in comprises four sub-systems (i.e., environment system, equipment employee system). Data were collected...

There are many accidents in the construction industry. Unsafe behaviors, a direct cause of accidents, have been studied extensively, but few scholars examined role social capital improving workers’ safety behaviors. Based on perspective, this paper explored how to improve behaviors workers order provide theoretical basis for study Through literature review and analysis, presented research hypothesis, constructed structural equation model (SEM), whether can affect their The results showed...

This study aims to investigate the level of social capital between construction supervisors and workers how this influences workers' safety behavior. To fulfill these research aims, a structural equation model (SEM) was constructed explore relationships among (including structural, relational, cognitive dimensions); competency; behavior (i.e., compliance participation), considering competency as mediation variable. Data on variables were collected via questionnaires answered by 535 who...

Despite the fact that lean construction (LC) has been shown to improve safety, little research conducted investigate how LC technologies could be applied safety management. This study aimed close gap by developing a planning and control (SPC) process based on evaluating it using structural equation modeling. The was last planner system (LPS) framework consisted of four sub-systems (i.e., analysis layer, performance layer). Data gathered from 300 Chinese projects. findings will serve as guide...

Background The diverse safety risk factors and their complex correlations in metro construction projects are important reasons for frequent accidents. However, existing studies have not yet explained fully the relationship among from perspective of sequence factors. Objective main objective this study is to explore temporal combination path projects. Methods data 80 accidents collected manually websites government departments where occurred covering 18 provinces China 2007 2023. Grounded...

Health and safety issues are critical factors influencing the sustainable development of mega construction projects. The impact social capitalism on health activities has been widely discussed in sustainability domains; nevertheless, its influence towards workers’ behaviors projects remains largely unknown. To address this research gap, current study aims to determine from a two-fold perspective between project managers workers. An exploratory case was adopted Tianjin, China. results reveal...

Purpose Leaders' behavior has a critical impact on workers' safety behavior. However, previous studies have shown contradictive views the effect of different leadership styles One reason may be that effectiveness leaders' varies according to diverse contexts. This study examines transformational and transactional (TsL) on-site workers under levels social capital in construction projects. Design/methodology/approach Safety is divided into three types: compliance (SC), organizational-oriented...

Although existing neural network approaches have achieved great progress on Chinese spelling correction, there is still room to improve. The model required avoid over-correction and distinguish a correct token from its phonological visual similar ones. In this paper, we propose an error-guided correction address these issues. By borrowing the powerful ability of pre-trained BERT model, novel zero-shot error detection method do preliminary detection, which guides our attend more probably...

Abstract Solution precursor plasma spraying is used to produce catalytic trimetallic coatings containing Ni, Fe and Mo directly onto stainless‐steel mesh, Ni foam carbon paper. The resulting material mostly comprised of face centered cubic FeNi 3 alloy forming a highly porous coating with nanostructured features. addition (up ≈14 at%) generates no new crystal phases but only an increase in the lattice parameter, indicating formation x solid solutions. solutions are as electrocatalyst for...

Due to the complexity and dynamics of underground construction projects, safety risk management has experienced significant challenges restricting sustainable development space. The research on causal chains coupling yet reveal dynamic interactive characteristics these factors their temporal relationships over time. This study utilized a complex system view for analysis, using 37 accident investigation reports projects. Combined with two novel emerging analytical methods, qualitative...

Robust electrocatalysts required to drive the oxygen evolution reaction (OER) during water electrolysis are still a missing component toward path for sustainable hydrogen production. Here new family of OER active quaternary mixed-oxides based on X–Sn–Mo–Sb (X = Mn, Fe, Co, or Ni) is reported. These nonstoichiometric mixed oxides form rutile-type crystal structure with random atomic motif and diverse oxidation states, leading formation cation vacancies local disorder. The successful...

How to generate human like response is one of the most challenging tasks for artificial intelligence. In a real application, after reading same post different people might write responses with positive or negative sentiment according their own experiences and attitudes. To simulate this procedure, we propose simple but effective dual-decoder model particular sentiment, by connecting two decoders encoder. support training, construct new conversation dataset form (post, resp1, resp2) where...

The answer-agnostic question generation is a significant and challenging task, which aims to automatically generate questions for given sentence but without an answer. In this paper, we propose two new strategies deal with task: type prediction copy loss mechanism. module predict the types of that should be asked, allows our model multiple same source sentence. enhances original mechanism make sure every important word in has been copied when generating questions. Our integrated outperforms...

Foam-like NiMo coatings were produced from an inexpensive mixture of Ni, Al, and Mo powders via atmospheric plasma spraying. The deposited onto stainless-steel meshes forming a highly porous network mainly composed nanostructured Ni active Ni4Mo. High material loading (200 mg cm-2) with large surface area (1769 cm2 per cm2) was achieved without compromising the foam-like characteristics. exhibited excellent activity towards both hydrogen evolution (HER) oxygen (OER) reactions in alkaline...

One-dimensional tellurium nanostructures can exhibit distinct electronic properties from those seen in bulk Te. The of nanostructured Te are highly dependent on their morphology, and thus controlled synthesis processes required. Here, crystalline nanowires were produced via physical vapour deposition. We used growth temperature, heating rate, flow the carrier gas, time to control degree supersaturation region where grown. latter leads a nucleation morphology nanostructures. observed that...

Chinese Grammatical Error Correction (CGEC) aims to generate a correct sentence from an erroneous sequence, where different kinds of errors are mixed. This paper divides the CGEC task into two steps, namely spelling error correction and grammatical correction. We firstly propose novel zero-shot approach for correction, which is simple but effective, obtaining high precision avoid accumulation pipeline structure. To handle we design part-of-speech (POS) features semantic class enhance neural...

The adoption of lean construction techniques in industry can eliminate waste and increase profit, this paper is to test the maturity implementation tools project, as well impact on individual performance.In research, five widely used were selected (Last Planner system (LPS), visualization tool, six step plan(6S), Just-in-time (JIT) Total quality management (TQM)), performance was divided into two dimensions: task contextual performance.The data collection methods included interviews...

In this paper, we propose a soft label approach to target-level sentiment classification task, in which history-based labeling model is proposed measure the possibility of context word as an opinion word. We also apply convolution layer extract local active features, and introduce positional weights take relative distance information into consideration. addition, obtain more informative target representation by training with tokens together make deeper interaction between tokens. conduct...

This study empirically tested the relationship between sub-dimensions of employees' lean construction (LC) competence and safety performance (SP), while incorporating organizational LC as a mediator. Data were collected from 710 employees on 300 projects. The hypothesis model was validated using multiple regression analysis. results show that cognitive can positively influence SP both directly indirectly via competence. However, social had direct negative effect SP, but it have an indirect...