Advantages Of High Quality Research Articles

BIM-based task planning method for wheeled-legged rebar binding robot

ABSTRACT Building Information Modeling (BIM) data has the advantages of high quality, operability, and parametric capabilities. In recent years, the application of BIM in construction planning for building robots has been increasing. Task planning for rebar binding is an important aspect of construction, and there is a growing trend of using robots to improve the accuracy and efficiency of binding operations. However, the complex and dynamic construction site environment poses significant challenges for task planning in rebar binding. Therefore, this paper proposes a new BIM-based task planning method for a wheeled-legged rebar binding robot, which can quickly generate an optimal task sequence. Firstly, an initial set of rebar intersection points is generated based on BIM data. Then, considering the execution dead zone of the robot and the variable workspace of the binding mechanism, the rebar intersection points set is decomposed and filtered using morphological opening operations. Finally, a constrained genetic algorithm is employed to sort the set of task points. Simulation and real-world experiments were conducted using a wheeled-legged rebar binding robot as the research subject. The results demonstrate that, compared to manual planning, the average binding efficiency is approximately 1500 points per hour, which is 1.97 times higher than manual operation. This validates the applicability and effectiveness of the proposed method.

Shaking table test of fabricated concrete shear wall structure and study on damage mechanism of strong earthquake

Prefabricated construction technology has the advantages of high quality, high efficiency, low cost, energy saving and environmental protection, and has developed rapidly in China in recent years. Based on the design and construction concept of “equivalent to cast-in-site”, the seismic effect and strong earthquake damage mechanism of the overall structure considering boundary constraints are studied. In order to promote the application and development of high-assembly-rate concrete shear wall structures in high-intensity areas, a reduced-scale structural model of sleeve connection was designed and fabricated based on the Chinese seismic code. Through the multi-level strength-increasing shaking table simulation test, the dynamic characteristics, earthquake response, failure process and strong earthquake disaster mechanism of the model structure are comprehensively analyzed. The research results show that the prefabricated concrete shear wall structure can achieve the predetermined seismic fortification purpose according to the specified construction requirements. Secondly, Under the stepwise excitations of PGA 0.035–0.40 g, the flexural and shear failure of the coupling beam are the main failure mode, and the damage of the coupling beam with a small span-height ratio (1.33) is more serious. Furthermore, Under the stepwise excitations of PGA 0.62–0.90 g, the seismic capacity of the model structure is greatly reduced and there is a risk of collapse. The failure modes of the structure after a strong earthquake include four types: bending-shear composite failure of composite beams, horizontal interface penetration between composite beams and floor slabs, horizontal interface penetration between prefabricated walls and floor slabs, and vertical cracking at the junction surface of prefabricated walls and cast-in-site restraint elements. The latter three are unique forms of fabricated concrete shear wall structures. Finally, according to the whole process data of the test, the bottom shear force and top displacement of the model structure are calculated, and the hysteresis curve, skeleton curve and equivalent lateral stiffness are established. It is hoped that this study can provide a reference for the seismic design of high-rise fabricated concrete shear wall structures.

Market Stakeholder Analysis of the Practical Implementation of Carbonation Curing on Steel Slag for Urban Sustainable Governance

Carbonation curing on steel slag is one of the most promising technologies for the iron and steel industry to manage its solid waste and carbon emissions. However, the technology is still in its demonstration stage. This paper investigates the market stakeholders of carbonation curing on steel slag for construction materials for its effective application by taking China as a case study. A holistic analysis of the competition, market size, and stakeholders of carbonation curing on steel slag was carried out through a literature review, a survey, a questionnaire, and interviews. The results showed that carbonation curing on steel slag had the advantages of high quality, high efficiency, low cost, and carbon reduction compared with other technologies. Shandong province was the most suitable province for the large-scale primary application of the technology. Stakeholder involvement to establish information platforms, enhance economic incentives, and promote adequate R&D activities would promote carbonation curing of steel slag into practice. This paper provides a reference for the commercialization of carbonation curing on similar calcium- and magnesium-based solid waste materials.

A Co-Embedding Model with Variational Auto-Encoder for Knowledge Graphs

Knowledge graph (KG) embedding has been widely studied to obtain low-dimensional representations for entities and relations. It serves as the basis for downstream tasks, such as KG completion and relation extraction. Traditional KG embedding techniques usually represent entities/relations as vectors or tensors, mapping them in different semantic spaces and ignoring the uncertainties. The affinities between entities and relations are ambiguous when they are not embedded in the same latent spaces. In this paper, we incorporate a co-embedding model for KG embedding, which learns low-dimensional representations of both entities and relations in the same semantic space. To address the issue of neglecting uncertainty for KG components, we propose a variational auto-encoder that represents KG components as Gaussian distributions. In addition, compared with previous methods, our method has the advantages of high quality and interpretability. Our experimental results on several benchmark datasets demonstrate our model’s superiority over the state-of-the-art baselines.

Brand Design And Branding Strategy For Agro Nusantara “Kopi Warga”

Local farmers who are members of the Agro Nusantara farmer group in Pangalengan, farm typica arabica coffee or buhun coffee known as Java Preanger. Until now, Agro Nusantara is able to produce quality coffee that meets the requirements as specialty coffee. Although the coffee produced by Agro Nusantara has the advantage of high quality, coffee is still sold as a generic product / as a raw material, which is marketed to regular regular buyers. This means that the superior product has a sub-optimal selling value, because it has a status as a generic product / wholesale product and has a "distance" or a big gap from consumers who enjoy coffee. The success of a product in the market is determined by how the marketing strategy is, the product must have a brand so that it is known or is present in the perceptions of target consumers. For this reason, a brand / branding design is needed as a strategic part of the marketing strategy for Argo Nusantara coffee products.The design of brands and branding for the coffee products of this Agro Nusantara farmer group includes brand names, brand identity / product logos, packaging design, and brand identity applications. The design process is carried out through the observation stage which includes the location of the object of research, information about coffee products, the vision and mission of partners, and others. In addition, interviews were also conducted with the leaders of the Nusantara Agro Farmers Group.The results obtained from this research are that the Agro Nusantara farmer group has succeeded in having a brand name - brand identity - a brand design for its coffee products which is named "Kopi Warga". This name contains a local meaning to build a message and the impression that this coffee product is from folks to folks. In addition, in order to maintain consistency of messages and impressions, to create a visual identity system, the Kopi Warga logo design is also applied to various retail supporting media such as sign boards and coffee serving equipment.

System Reliability Evaluation of Prefabricated RC Hollow Slab Bridges Considering Hinge Joint Damage Based on Modified AHP

The prefabricated reinforced concrete (RC) hollow slab bridges, with the advantages of high quality, lower cost and shorter construction period, have been widely used for small-to-medium-span highway bridges in China. Because of environmental deterioration and traffic volume increases, the performance of the bridge system deteriorates gradually. Accurate bridge system evaluation can provide a reliable basis for maintenance and management. A bridge system is composed of multiple interrelated components, which makes the system reliability evaluation become a computationally intractable work. In this paper, an effective method was proposed to evaluate the system reliability of the prefabricated RC hollow slab bridge considering hinge joint damage based on the modified analytic hierarchy process (AHP). Considering the subjectivity of the traditional AHP method in constructing the judgment matrix, this paper proposed an objective construction method of the judgment matrix to modify the traditional AHP. The modified hinge plate method (MHPM) proposed by the previous research was utilized to analyze the effect of hinge joint damage on system reliability. In order to verify the applicability of the proposed system reliability evaluation method, a simply supported RC hollow slab bridge was selected as the case study and the system reliability indexes were compared with the traditional series and parallel methods. The results indicated that the traditional methods were either too conservative or too radical to objectively evaluate the actual system reliability level of the structure. In contrast, the proposed method in this paper was more suitable for evaluating the system reliability of such bridges, and more accurate in providing maintenance decision makers with a relatively reasonable bridge condition information.

Fouling of Flow Reactors in Organolithium Mediated Transformations: Experience on Scale-up and Proposed Solution.

Continuous processing has been demonstrated to be a superior approach when applied to fast and energetic chemical transformations. Indeed, whereas classical batch or semi-batch methods require cryogenic conditions and slow addition rates of reactive species, flow technologies enable rapid mixing of synthetic partners in a highly controlled environment. As a result, low yielding and dangerous processes in batch can be performed at scale in a cost competitive and safer continuous manner. Despite the advantages of higher quality and safety, the perennial problems of solids build-up and pipe fouling threaten the robustness and reliability of flow processes. In this contribution, a new methodology to prevent reactor fouling is reported and discussed. The implementation of this methodology has been decisive in solving fouling issues encountered during the piloting of an organolithium based flow process.

Adapting Digital Biblical Resources for Translation and Teaching: Harvesting low-hanging fruit and growing next generation resources

When biblicalhumanities.org launched in 2013, we naively assumed that software developers would know how to take advantage of high quality, innovative data if it were published in open formats under free licenses. We understood the importance of building communities that know how to take advantage of this data, software and frameworks that make it easily accessible, and tailoring data to specific use cases, but we assumed that this would happen if we just made the data freely available. Freely licensed base texts, morphologies, contextual glosses, syntax treebanks, discourse analyses, lexicons, textual variants, images, conjectural emendations, and grammars are available now, and some are at least as good as commercial resources, but they are not yet widely used. In the last year or so, Jupyter Notebooks and academic conferences have started to bring this data into academic study, but we have barely begun to tap its potential for translation, language learning, and scripture engagement for those who know the languages. To realize this potential, we need to understand the use cases and mindset of potential users and create software and other resources tailored to their needs. Over time, we need to gather feedback from these same users, walk with them as they learn and grow, and welcome them into communities that will create the next generation of resources.

Country-scale discontinuity analysis of AW3D30 and SRTM Global DEMS: case study in Turkey

The quantitative model of the Earth is provided by optical and radar space-borne remote sensing global digital elevation models (GDEMs). GDEMs are fundamental for many geo-spatial analysis and demanded by several applications that need topographical data. Recently released ALOS World 3D 30 m (AW3D30) and 1 arc-second (~ 30 m) Shuttle Radar Topography Mission (SRTM) C-band GDEMs have the advantages of high quality and free availability from JAXA and NASA and much in demand in scientific community. In this paper, we comprehensively analyzed the discontinuities between AW3D30 and SRTM C-band GDEMs in country-scale calculating and interpreting the influence of terrain inclination and land cover classes. The coherence between two GDEMs was estimated by absolute horizontal and vertical accuracy analysis in the basis of model-to-model validation approaches. During the analysis, standard deviation and normalized median absolute deviation of height differences between GDEMs were utilized as the main coherence indicators. The frequency distribution of height differences and the incoherent outliers were presented by error distribution graphics and height error maps, respectively. The results clearly demonstrated the significance of ascending and descending orbits, terrain inclination, and land cover on the discontinuities.

Results of tensile, hardness and bend tests of modified 9Cr 1Mo steel welds: Comparison between cold wire and hot wire gas tungsten arc welding (GTAW) processes

Hot wire Gas Tungsten Arc Welding (GTAW) process is considered in addition to conventional cold wire GTAW process for the manufacture of Steam Generators (SG) for India's Prototype Fast Breeder Reactor (PFBR). During manufacture, it is an obligatory requirement to weld one test coupon for every 20 m of weld length on the actual SG for ascertaining the properties during fabrication. Weld pads thus prepared were used for characterization of hardness, bend and tensile properties of modified 9Cr 1Mo steel welds produced by hot wire and cold wire GTAW processes and the test results were compared. The results revealed that hardness, bend and tensile properties of modified 9Cr 1Mo steel welds of hot wire and cold wire GTAW processes are similar and no genuine difference exist between these two welding processes. Further, the advantage of high quality with excellent weld profile and high productivity has been realized using hot wire GTAW process.

A Novel Metamaterial Inspired High-Temperature Microwave Sensor in Harsh Environments.

A high-temperature sensor based on a metamaterial unit cell is proposed in this paper. The wireless passive temperature sensing method is based on the electromagnetic backscatter principle, and thus has the advantages of higher quality, lower environmental interference, and anti-low frequency interference. We developed a finite-element method-based model for the sensor via high-frequency simulation software (HFSS). A double split-ring resonator (SRR) with an outer ring length of 13 mm was designed on alumina ceramic substrate. The sensor was fabricated at 2.42 GHz using micromechanical technology and screen printing technology. When the temperature increased from 28 to 1100 °C, the resonant frequency decreased from 2.417 to 2.320 GHz with an average sensitivity of 95.63 kHz/°C. As the sensor is easily designed and fabricated, it can be used for chipless radio frequency identification (RFID) tags by simply changing the size of rings. Furthermore, emerging 3D printing technology and commercial desktop inkjet printers will be used to realize the rapid low-cost preparation of the sensor, enabling its wide range of applications in aerospace, military, manufacturing, transportation, and other fields.

THE RELATIONSHIP BETWEEN LOW QUALITY PRODUCT AND CONSUMER CHOICE

The study is aimed to find out the influencing factors when consumers decide to choose products with low quality. The result indicates that major considered factors should be short life cycle, low quality, design, price and purchase intention, while price be considered as the one which has significant effect on consumers’ choices of accepting low quality, as well as product design. Most companies put the market share at the vital position, in traditional commercial thinking, high quality always means that products will be accepted by most customers; but now it is totally different. We take fast fashion industry and mobile phone industry as examples and choose fsQCA as the methodology to analyses the relationship between variable and result. Most of the customers are pursuing for high quality with low price (Dodds et al., 1991; Alfred, 2013; Shirai, 2015). But the companies are difficult to make the high quality products have low price. The companies can have the high quality advantage. However, quality is not the only factor to make the products with high price, design, corporate culture and brand can also be the factors (Homburg et al., 2015). How to make the consumers accept the low quality in short lifecycle product (e.g. fast fashion or high-tech industry), which means consumers may purchase new product to replace the old one before it has problems. In our study, we collect these data from customers via questionnaire. And use fsQCA to analyze the relationship between price, design and short lifecycle, all these influencing factors and customer purchase intention on low quality product. And we have some findings. Sometimes, low quality products can help companies achieve success by bringing income and satisfy consumers’ needs of goods and services in affordable price. From company’s aspect, low quality products are more affordable than those of high quality, so these products will win larger market share and promote fast fashion items to sell fast. While customers sometimes demand more products with good design, at the same time, they cannot bear the expensive items, low quality products can achieve balanced between demands and consuming ability. This means both companies and customers can get win-win situation.

A novel compact and high performance bandpass filter based on SIW and CMRC technique

Based on the substrate integrated waveguide (SIW) and compact microstrip resonant cell (CMRC) technique, a compact and high performance planar bandpass filter (BPF) is proposed in this paper. The SIW cavity, which has the advantages of high quality and low insertion loss, provides a highpass characteristic. The CMRC structure etched on the top metal plane of the SIW cavity behaves as a lowpass filter, and it can also effectively reduce the dimension of the filter. In order to improve the out-of-band rejection and sharpen skirt selectivity, the open circuit lines at the input and output ports of the filter are introduced. Moreover, the bandwidth and center frequency of the proposed filter can be flexibly tuned by adjusting the cutoff frequencies of the SIW and CMRC separately. As a verification, a representative BPF having a center frequency of 4.54GHz and a 3dB bandwidth of 1.39GHz is designed, fabricated, and experimentally evaluated. The simulated and measured results are in good agreement.

Research of intelligent substation merging unit calibration equipment

This paper analyzes the structure and principle of the merging unit. Considering the effect of merging unit device performance of metering device and electrical protection, determines the inspection items and technical indicators. Combined with the merging unit related performance detection technology and related standards and rules, the paper uses system integration technology and automatic control technology to studied synchronization method in a separate network and the operation of SV for IEEE1588. Merging unit field calibration device was developed with advantages of high quality, good performance, reliable, and the device was used for field testing at some intelligent substation merge cells, its validity was proved.

A Hybrid Flower Pollination Algorithm for Engineering Optimization Problems

pollination algorithm (FP) is a new nature-inspired algorithm, based on the characteristics of flowering plants. Combining with the features of flower pollination algorithm, an improved simulated annealing algorithm is proposed in this paper (FPSA). It can improve the speed of annealing. The initial state of simulated annealing and new solutions are generated by flower pollination. Therefore, it has the advantage of high quality and efficiency. The method combines the standard flower pollination algorithm (FP) with simulated annealing to enhance the search performance and speeds up the global convergence rate. Structural engineering optimization problems are presented to demonstrate the effectiveness and robustness of the proposed algorithm. The experimental results showed that the accuracy of finding the best solution and convergence speed performance of the proposed algorithm is competitive to those achieved by the

In-Depth Molecular Profiling of Multiple Myeloma in African Americans

Introduction: Multiple Myeloma (MM) is a complex malignancy of plasma cells well-described hyperdyploidy, and immunoglobulin gene rearrangements. To promote rapid advances in the field, Multiple Myeloma Research Foundation (MMRF) initiative is an intensive and comprehensive longitudinal study (CoMMpass) designed to create a rich discovery ecosystem to through in-depth clinical and molecular profiling to understand the molecular perturbations of the disease in the context of therapy. The large study population empowered us to stratify mutational landscapes among different ethnicities to influence on broader disparities in tumor dynamics.Methods: Clinical data, tumor/normal sample collection, and mutational landscape analysis described in this abstract are derived from MMRF CoMMpass IA7 release that is composed of self-identified 93 African American (AA) and 377 European American (EA). The post-processing and primary analysis was done on baseline samples only. Whole exome sequencing was analyzed for the detection of somatic events. Secondary analysis was performed using MutSigCV (Mutation Significance) algorithm and GISTIC (The Genomic Identification of Significant Targets in Cancer) to determine the significance of coding mutations and copy number events.Results: Our preliminary comparison analysis of CoMMpass IA7 data demonstrated that overall there was no statistical difference (p=0.5973) in nonsilent mutation burden between the two stratified groups, AA (μ=63.9 mutations/patient) vs EA (μ=73.7 mutations/patient). However, we have observed several notable differences. The most notable population difference (p<0.0001) was TP53 mutation occurrence, which was more common in EA 5.6% (21/377) compared AA 2.1% (2/93).Furthermore, MutSig analysis also revealed a novel candidate PTCHD3 (p = 7.07E-06, q = 3.33E-02) with 6% occurrence in AA compared to only 0.04% in EA. Furthermore, we looked at mutation occurrence difference of at least 5 fold between the two stratified populations. We have identified several additional genes that have higher mutation frequencies in tumors from AA patients including: ANKRD26, BCL7A, BRWD3. Interestingly, majority is implicated in epigenetic regulatory mechanisms.Moreover, despite the complex karyotype in MM translocations, our analysis demonstrated a lower frequency of 14q32 translocations in tumors from AA patients (10%) compared to tumors from EA patients (37%). These data would independently validate our previously reported differences in 14q32 breakpoints between these two populations.Conclusion: Data from this comprehensive diverse multi-institutional longitudinal study has afforded us the opportunity to study population differences among MM patients in an unprecedented way. Taking advantage of high quality, high-resolution whole exome and whole-genome data has allowed us to identify potential differences in the genomic and molecular landscape of MM from AA and EA patients. These data may help us further understand the incidence and outcomes among patients from these populations. As CoMMpass continues to mature these datasets will be retested that may result in some of these preliminary reported events to either level off, or increase in power. DisclosuresMulligan:Millennium Pharmaceuticals, Inc., Cambridge, MA, USA, a wholly owned subsidiary of Takeda Pharmaceutical Company Limited: Employment. Lonial:Janssen: Consultancy, Research Funding; Bristol-Myers Squibb: Consultancy, Research Funding; Novartis: Consultancy, Research Funding; Millennium: Consultancy, Research Funding; Celgene: Consultancy, Research Funding; Onyx: Consultancy, Research Funding. Keats:Translational Genomic Research Institute: Employment.

Preclinical evaluation of parametric image reconstruction of [18F]FMISO PET: correlation with ex vivo immunohistochemistry

Compared to indirect methods, direct parametric image reconstruction (PIR) has the advantage of high quality and low statistical errors. However, it is not yet clear if this improvement in quality is beneficial for physiological quantification. This study aimed to evaluate direct PIR for the quantification of tumor hypoxia using the hypoxic fraction (HF) assessed from immunohistological data as a physiological reference. Sixteen mice with xenografted human squamous cell carcinomas were scanned with dynamic [18F]FMISO PET. Afterward, tumors were sliced and stained with H&E and the hypoxia marker pimonidazole. The hypoxic signal was segmented using k-means clustering and HF was specified as the ratio of the hypoxic area over the viable tumor area. The parametric Patlak slope images were obtained by indirect voxel-wise modeling on reconstructed images using filtered back projection and ordered-subset expectation maximization (OSEM) and by direct PIR (e.g., parametric-OSEM, POSEM). The mean and maximum Patlak slopes of the tumor area were investigated and compared with HF. POSEM resulted in generally higher correlations between slope and HF among the investigated methods. A strategy for the delineation of the hypoxic tumor volume based on thresholding parametric images at half maximum of the slope is recommended based on the results of this study.

Friction Stir Spot Welding Technology and its Application in Aerospace Industry

The friction stir welding technology is a new type of welding technology of solid phase, with advantages of high quality, few defects, and small deformation in joint, which has obvious advantages in welding light alloys of aluminum, magnesium and other new materials, which will replace the traditional resistance spot welding and riveting technology to be one of the main manufacturing methods of aerospace industry, and has wide application prospects in this industry, which have great significance in upgrading the manufacturing level of aerospace industry, reduce the production cost and improve our manufacturing technology.

Potential applications of hierarchical branching nanowires in solar energy conversion

Nanoscience and nanotechnology can provide many benefits to photovoltaic and photoelectrochemical applications by combining novel nanoscale properties with processability and low cost. Taking advantage of high quality, high efficiency, yet low cost nanomaterials could potentially provide the new and transformative approaches to enable the proposed generation-III solar technologies. Nanowires are interesting because they have a long axis to absorb incident sunlight yet with a short radial distance to separate the photogenerated carriers. In this perspective, we further suggest that more “complex” nanostructures, both in the form of hierarchically branching/hyperbranching nanowire structures and in the form of multi-component nanowire heterostructures of diverse materials, are potentially even more interesting for solar energy harvesting and conversion. The common bottom-up synthetic techniques to induce branching in nanowires to form hierarchical nanowire structures are reviewed. Several potential strategies for their incorporation into solar conversion devices are discussed and some fundamental issues and future directions are identified.

A Note on the High–quality Advantage in Vertical Differentiation Models

It is well established in vertical product differentiation models that the high–quality firm reaps a larger profit in a two–stage quality–price game as long as the cost of quality improvement is zero or is borne as fixed cost in the first stage quality choice. This note shows that the high–quality advantage may fail to hold if there is variable cost of production that is dependent on quality.