Off-site trimer superfluid on a one-dimensional optical lattice

The Bose-Hubbard model with an effective off-site three-body tunneling,characterized by jumps towards one another,between one atom on a site and a pair atoms on the neighborhood site,is studied systematically on a one-dimensional（1D） lattice,by using the density matrix renormalization group method.The off-site trimer superfluid,condensing at momentum k = 0,emerges in the softcore Bose-Hubbard model but it disappears in the hardcore Bose-Hubbard model.Our results numerically verify that the off-site trimer superfluid phase derived in the momentum space from[Phys.Rev.A81,011601（R）（2010）]is stable in the thermodynamic limit.The off-site trimer superfluid phase,the partially off-site trimer superfluid phase and the Mott insulator phase are found,as well as interesting phase transitions,such as the continuous or first-order phase transition from the trimer superfluid phase to the Mott insulator phase.Our results are helpful in realizing this novel off-site trimer superfluid phase by cold atom experiments.

Application of Intelligent Power Consumption Management and Control Technology in Enterprise Off-site Enforcement

Regarding the current difficulties in SME(small and medium enterprise)supervision,especially considering the problem that the emission reduction task cannot be effectively implemented under the off-site daily supervision and the new normal of epidemic prevention with control of heavily polluted weather,a new type of intelligent power management technology has been proposed.Power information collection equipment and intelligent data collection and transmission terminal are installed to collect power consumption information of enterprise production facilities and pollution control facilities,and their operating conditions are monitored in 24 h.Abnormal operation alarm and closed-loop disposal management are provided through the software platform.The practical application of power monitoring technology in Rizhao City proves that the system alarms accurately and monitors efficiently.On the one hand,it has improved the efficiency of daily supervision of the ecological environment department,and can accurately investigate and correct corporate pollution control violations.On the other hand,it has enriched environmental supervision methods to accurately control the implementation of emergency emission reduction measures.The application of this technology has realized the transformation from civil defense to technical defense,from random law enforcement to precise law enforcement,and from on-site law enforcement to off-site law enforcement in the supervision of polluting enterprises in the jurisdiction,creating a new mode of off-site law enforcement for enterprises.

Subcellular distribution of N-methyl-D-aspartic acid receptor subunit 1 in neural stem cells within subventricular zone of adult rats

The subcellular localization of N-methyI-D-aspartic acid receptor subunit 1 in neural stem cells of the subventricular zone of adult rats was detected using electron microscopy, following immunohistochemistry and immunogold-silver double staining. Results confirmed the presence of neural stem cells in the subventricular zone, which is a key neurogenic region in the central nervous system of adult mammals. The expression of N-methyI-D-aspartic acid receptor subunit 1 was higher than that of nestin and mainly distributed in the cell membrane, cytoplasm, rough endoplasmic reticulum and Golgi complex of neural stem cells.

Impolite Pedestrian Detection by Using Enhanced YOLOv3-Tiny

In recent years,the problem of“Impolite Pedestrian”in front of the zebra crossing has aroused widespread concern from all walks of life.The traffic sector’s governance measures have become more serious.The traditional way of governance is on-site law enforcement,which requires a lot of manpower and material resources and is low efficiency.An enhanced YOLOv3-tiny model is proposed for pedestrians and vehicle detection in traffic monitoring.By modifying the backbone network structure of YOLOv3-tiny model,introducing deep detachable convolution operation,and designing the basic residual block unit of the network,the feature extraction ability of the backbone network is enhanced.The improved model is trained on the VOC2007+VOC2012 training set,and the trained model is tested for performance on the test data set.The experimental results show that:the mean Average Precision(mAP)increased from 0.672 to 0.732,increasing the measurement accuracy by 9%.The Intersection over Union(IoU)increased from 0.783 to 0.855,increasing the coverage accuracy by 7.2%.The enhanced YOLOv3-tiny model has higher measurement accuracy than the original model.Applying this model to the 1080P traffic video on the NVIDIA RTX 2080,the detection speed is 150 FPS,which can fully achieve real-time detection.Through the analysis of pedestrians and vehicle coordinates,it is judged whether or not illegal acts occur.For illegal vehicles,save three pictures as the basis for law enforcement,which forms an important supplement to off-site law enforcement.

Variational Monte Carlo study of the nematic state in iron-pnictide superconductors with a five-orbital model

We perform a variational Monte Carlo study of the nematic state in iron-pnictide superconductors within a realistic five-orbital model. Our numerical results show that the nematic state, formed by introducing an anisotropic hopping order into the projected wave function, is not stable unless the off-site Coulomb interaction V exceeds a critical value. This demonstrates that V plays a key role in forming the nematic state in iron-pnictide superconductors. In the nematic state,the orbital order and the anisotropic spin correlations are consistent with the experimental observations. We argue that the experimentally observed anisotropic magnetic couplings and structural transition are associated with the nematic state and can be understood in a unified framework.

Development and application of an off-site maintenance system in the petrochemical industry

On-site maintenance(ONSM) is critical to ensuring the safety of equipment in the petrochemical industry. However, many accidents occur during ONSM processes because of unstable equipment, complicated work environment, and human error. To reduce congestion and exposure to hazards during on-site operations and thereby reduce the probability of accidents, off-site maintenance(OFSM) is proposed based on Energy Release Theory(ERT). The information requirements for OFSM are analyzed. A support system for OFSM, which makes use of visualization, information management, and localization capabilities, is developed. A case study utilizing OFSM and its support system for an oil-loading facility of a petrochemical company is conducted. The application results indicated that implementation of OFSM system can significantly reduce the operation risks and can improve the operation efficiency.

Emergency Surgical Intervention by Mobile Surgical Team in the NICU

The objective of this study was to describe our NICU’s (neonatal intensive care unit) experience with mobile surgical team and to demonstrate its effectiveness. Method: We analyzed the data of 17 consecutive very low birth weight and extremely low birth weight infants over 3 years who underwent 22 procedures (19 emergency and 3 elective). The gestational age at birth was a median of 25 weeks (range 24 - 39), and the median birth weight was 613 g (range from 340 g to 1100 g). The infants received their operations during their first 2 weeks of life (median 7 days, range from 1 to 14). Results: The spectrum of primary surgical diagnoses included spontaneous intestinal perforations (n = 8), gastric perforations (n = 3), necrotizing enterocolitis (n = 2), meconium ileus (n = 2), and miscellaneous (n = 2). An emergency laparotomy with either a bowel or a gastric procedure was performed in 16 cases. Postoperatively, all infants required mechanical ventilation from 1 to 43 days (median 6.5 days). Complications included a metachronous small bowel perforation, an ileostomy retraction, a prolapsed stoma, and impaired wound healing;we had one postoperative death. Two infants died later in the NICU (mortality 3 of 16;19%). Conclusion: Off-site surgery for preterm infants in the NICU is feasible. This approach prevents the risks of transportation, and parents and neonatologists alike feel comfortable with this regimen. However, biases may exist regarding the surgeon’s decision to operate, the choice of procedure, and the follow-up.

Modular Disruption in Construction Industry-The Environmental Benefits

The impact of Covid-19 on every aspect of life is undeniable.As the pandemic began to spread throughout February 2020,no one could have foretold the ways in which this disease would change society.One of the key things that the Covid-19 pandemic has accelerated is off-site manufacturing and the different ways in which modular construction can be utilized to deal more effectively with the demands of a crisis.The rapid erection of modular hospitals across the globe has been critical in fighting the outbreak of Covid-19,not least the modular hospital in Wuhan that was built in just 10 days.Modular construction was already a hot topic for the industry,the pandemic has simply enhanced this-and the last few months were given the opportunity to explore the options in more detail.There is no doubt that modular construction will continue to play a part in construction projects in the longer term and construction industry should adapt to accommodate this change.Since construction industry is the largest consumer of natural resources,this article would emphasize on the sustainability dimensions of modular construction and its performance during the whole lifecycle.A thorough literature review of the sustainability benefits of modular construction compared to its tradition counterpart is presented.

The Policy for Education of Migrant Workers＇ Children：Situation Analysis and the Future Orientation

The education of migrant workers＇ children is not only education but also social issue. Countries and places have introduced a number of policies to address the issue in a timely manner. At first, this paper analyzes the compulsory education policy for migrant workers＇ children and off-site college entrance policy, then find that there are still many problems in the formulation and implementation of policy. In the future, the relevant departments should be through improving the social status of migrant workers, increasing efforts to support the private school children of migrant workers, increasing investment in adult education, increasing the publicity of city, such the four aspects of policy guidance to coordinate and solve the education of migrant workers＇ children.

Risks of modular integrated construction: A review and future research directions

Stakeholders remain skeptical in adopting modular integrated construction(MiC)because of the associated risks and uncertainties,although its benefits have been extensively documented.The unique business model of MiC nurtures several risks and uncertainties different from those of the conventional construction approach.Despite the growing attention on MiC with its market expansion,no systematic evaluation is in place to monitor its risks research progress.Accordingly,this research reviewed published literature addressing the risks associated with MiC from 1992 to 2019.Analysis reveals that the research publications on risks of MiC witnessed a steady growth,with considerable progress occurring in the last decade.Result implies that the risk of MiC has gained extra attention in the construction engineering and management domain in recent times.Existing empirical studies have focused heavily on perceived implementation risks,supply chain risks,schedule risks,investment risks,structural risks,ergonomic risks,and MiC risk management strategies,which indicate that MiC is associated with a host of risk events.The research further identified the critical risk events(CREs)in the application of MiC based on frequency of occurrence.The identified CREs contributes to the checklists of risk events in the implementation of offsite construction(OSC).The latter may be useful in risk planning,especially where the MiC is less developed,and fewer or no bespoke risk assessment exists.Research gaps in existing studies are highlighted in this research,and areas for further studies are then proposed.Thus,it makes a useful contribution to the scholarly literature on the risk of OSC and may prove useful to offsite construction researchers,industry practitioners,and project managers.

Benefits Approach to Leisure Applied to Sustainable Tourism Development

The Benefits Approach to Leisure (BAL), recognized as a major and badly needed "paradigm shift" in the way we conceive of and manage recreation resources, is believed to play a big role in achieving the sustainable development of tourism industry. BAL has been proved to be effective and efficient in the field of leisure and tourism in terms of its three types of benefits and two stages of production. This paper, using Aqua Zoo in Friesland, the Netherlands as a case, investigates the significance of BAL to the sustainable tourism development.