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The organization model has shifted from treating the workforce as machines to improving human centricworking environments. The Learning Organization is conceptualized as an organism that evolves through continuous learning to adapt with a constantly changing environment. School is a typical organization and many scholars argued to reconceptualize school as a learning organization. The Integrated Model of School as a Learning Organization (Kools & Stoll, 2016)) has been widely studied and tested in European schools, particularly in Wales. However, there is a gap in the research needed to understand the prerequisites of SLO transformation and thus to better prepare for reform. To explore the prerequisites of SLO, a researcher applies a qualitative approach to purposely collect secondary data from the eight empirical studies in Wales, Greece, Latvia, Spain, Bulgaria, Türkiye, and Italy. To conduct data analysis, a data coding strategy is employed to create the prerequisites and assign them to the main themes- System Level and School Level. To achieve the SLO transformation, the researcher then recommends a systematic reform that involves the education stakeholders, both at system level and at school level - to put forward the practice of the SLO seven actionoriented dimensions. Further meta-analysis research is recommended to widen the scope of conceptualizing antecedents of SLO transformation.

Nuclear thermal propulsion is an evolving technology that can be utilized for long-distance space travel. This technology yields the advantage of a high thrust and specific impulse, but requires an examination of the potential design adjustments necessary to enhance its feasibility. The development of nuclear thermal propulsion requires a comprehensive understanding of the system-level behavior during transient and steady-state operation. This paper extends our previous research by including the proper handling of turbomachinery with multi-channel thermal hydraulic simulations only for steady-state solutions. The system-level approach presented here enables the treatment of the turbopump components through non-dimensional analysis that eliminates the assumption of constant efficiencies. All the other components within the system (e.g., reflector and core) can be discretized to multiple channels and layers, in which the full thermal hydraulic solution is established. The approach chosen here enables the realistic modeling of the propellant flow within the expander cycle by capturing the pressure losses, mass flow rate splits, and enthalpy gain for various operational conditions. The verification of the package is completed through point comparisons of previous investigations into similar system designs. Furthermore, sensitivity studies are used to benchmark the capabilities of the package and investigate solution variations due to the perturbation of operational conditions and regimes. The sensitivity studies performed here are important to capture variation in flow characteristics (e.g., temperature, pressure, mass flow rates) for different design objectives such as the thrust and specific impulse. This work demonstrates that system-level simulations lacking multi-channel capability and proper turbomachinery treatment may yield higher uncertainties in understanding the engine’s response and characteristics to changing various requirements. This is extremely important when screening the design space of such propulsion systems and when transient simulations are required.

Abstract This paper presents a compact thermal model for smartphones, Phone‐nomenon 2.0, to predict the thermal behavior of smartphones. In the beginning, non‐linearities of internal and external heat transfer mechanisms of smartphones and a compact thermal model for these non‐linearities have been studied and proposed. Then, an iterative simulation procedure to handle these non‐linearities was developed, and the basic simulation framework which is one option in Phone‐nomenon 2.0 was established and we call it Phone‐nomenon.Iter. Finally, the linearisation approach was applied, and model order reduction techniques to enhance and speed up the basic framework were employed, and these two options Phone‐nomenon.Lin and Phone‐nomenon.LinMOR were named. Compared with a commercial tool, ANSYS Icepak, Phone‐nomenon.Iter can achieve two orders of magnitude speedup with the maximum error being less than 1.90% for steady‐state simulations and three orders of magnitude speedup with the temperature difference being less than 0.65°C for transient simulations. In addition, the speedup of Phone‐nomenon.Lin over Phone‐nomenon.Iter can be at least 4.22× and 3.26× for steady‐state and transient simulations, respectively. Moreover, the speedup of Phone‐nomenon.LinMOR over Phone‐nomenon.Lin is at least 2.57×.

Abstract Laser wireless power transmission technology avoids the traditional cable transmission requirements regarding the territory and environment, and facilitates vehicle-mounted laser wireless power transmission to provide accompanying power supplies to multi-target unmanned clusters. This can reduce the dependence of unmanned equipment (especially unmanned aerial vehicles) on power storage batteries, providing broad application prospects for the battlefield. However, the current laser wireless power transmission technology lacks a standardized technical index system and mature test and evaluation method; this is not conducive to the application of this technology in diverse combat scenarios. Accordingly, this paper proposes specific indicators for the component-level and system-level performance testing of laser wireless power transmission technology and constructs a corresponding test system and evaluation method, providing a yardstick for selecting laser wireless power transmission systems adapted to the battlefield.

Area and power consumption of an integrated circuit chip is strongly related to its operating frequency. Using the switching principle of the gate-level circuit under different frequencies and keeping the original design, a system level chip area and power consumption optimization method based on dynamic frequency adjustment is proposed in this paper. Firstly, the relationships of area vs. frequency and power consumption vs. frequency are established by choosing the multiple test sets which satisfy the restricting constraints. Secondly, the mathematical models of area vs. frequency and power consumption vs. frequency are derived. Then, the optimal operating frequency is obtained by resolving the models. With a tape out design, the proposed method achieved about 0.59% area shrink and about 9.01% reduction in power consumption.

DNA methylation plays a critical role in tumorigenesis through regulating oncogene activation and tumor suppressor gene silencing. Although extensively analyzed, the implication of DNA methylation in gene regulatory network is less characterized. To address this issue, in this study we performed an integrative analysis on the alteration of DNA methylation patterns and the dynamics of gene regulatory network topology across distinct stages of stomach cancer. We found the global DNA methylation patterns in different stages are generally conserved, whereas some significantly differentially methylated genes were exclusively observed in the early stage of stomach cancer. Integrative analysis of DNA methylation and network topology alteration yielded several genes which have been reported to be involved in the progression of stomach cancer, such as IGF2, ERBB2, GSTP1, MYH11, TMEM59, and SST. Finally, we demonstrated that inhibition of SST promotes cell proliferation, suggesting that DNA methylation-associated SST suppression possibly contributes to the gastric cancer progression. Taken together, our study suggests the DNA methylation-associated regulatory network analysis could be used for identifying cancer-related genes. This strategy can facilitate the understanding of gene regulatory network in cancer biology and provide a new insight into the study of DNA methylation at system level.

User councils act as advisory bodies for the agencies with which they are associated. This article is based on interviews with user participants and agency representatives from a sample of user councils in Norway. The main question raised is how user participation functions in user councils. In general, the findings show that among the user councils there are active discussions, most of the user informants feel that they are respected as equal partners and that they are taken seriously. However, the work is characterized by representatives from the agencies taking the initiative to raise issues and the user representatives responding to these initiatives, and in that way the user participants function reactively. Most of the informants from the agencies want the user representatives to be more active and critical. This raises concerns about how user participants can be more proactive. Finally, some prerequisites for improving the functioning of user councils are discussed.

Abstract In this article, we introduce MATLAB-based link and system level simulation environments for UMTS Long-Term Evolution (LTE). The source codes of both simulators are available under an academic non-commercial use license, allowing researchers full access to standard-compliant simulation environments. Owing to the open source availability, the simulators enable reproducible research in wireless communications and comparison of novel algorithms. In this study, we explain how link and system level simulations are connected and show how the link level simulator serves as a reference to design the system level simulator. We compare the accuracy of the PHY modeling at system level by means of simulations performed both with bit-accurate link level simulations and PHY-model-based system level simulations. We highlight some of the currently most interesting research questions for LTE, and explain by some research examples how our simulators can be applied.