One-way Transfer Research Articles

Digital twin: a state-of-the-art review of its enabling technologies, applications and challenges

Digital twin (DT) is an emerging technology that enables sophisticated interaction between physical objects and their virtual replicas. Although DT has recently gained significant attraction in both industry and academia, there is no systematic understanding of DT from its development history to its different concepts and applications in disparate disciplines. The majority of DT literature focuses on the conceptual development of DT frameworks for a specific implementation area. Hence, this paper provides a state-of-the-art review of DT history, different definitions and models, and six types of key enabling technologies. The review also provides a comprehensive survey of DT applications from two perspectives: (1) applications in four product-lifecycle phases, i.e. product design, manufacturing, operation and maintenance, and recycling and (2) applications in four categorized engineering fields, including aerospace engineering, tunneling and underground engineering, wind engineering and Internet of things (IoT) applications. DT frameworks, characteristic components, key technologies and specific applications are extracted for each DT category in this paper. A comprehensive survey of the DT references reveals the following findings: (1) The majority of existing DT models only involve one-way data transfer from physical entities to virtual models and (2) There is a lack of consideration of the environmental coupling, which results in the inaccurate representation of the virtual components in existing DT models. Thus, this paper highlights the role of environmental factor in DT enabling technologies and in categorized engineering applications. In addition, the review discusses the key challenges and provides future work for constructing DTs of complex engineering systems.

Efektivitas Prinsip Komunikasi Islam Guru dalam Pembinaan Karakter Komunikasi Siswa Kelas X MAN Rantauprapat

This study aims to obtain a concrete picture of the effectiveness of the application of the principles of teacher Islamic communication in fostering the character of tenth grade students of Madrasah Aliyah Negeri Rantauprapat. The communication process in education is not only understood as a one-way knowledge transfer process, however, there must be a serious effort on the part of the educator / teacher, as a communicator, to be able to provide good role models. Qualitative research methods try to understand a phenomenon as the understanding of the respondents studied, with an emphasis on the subjective aspects of one's behavior. Qualitative research provides an opportunity for researchers to understand the way respondents describe the world around them based on the way they think. The researcher tries to enter the conceptual world of the subject under study to capture what and how things happen. Data collection techniques used in this study were interviews in this study researchers used a semi-structured interview (semitructure interview), namely: interviews in the category of in-depth interviews. Data about the application of teacher Islamic communication and the communication character of tenth grade students, data analysis used in this study during the field using the Miles and Huberman Model, namely the activities in qualitative data analysis are carried out interactively and continue continuously until completion, so that the data is already saturated.

(Invited) Surface Modification of Dye-Sensitized Hydrogen-Evolving Photocatalyst for Z-Scheme Solar Water Splitting

Z-scheme water splitting system composed of water reduction and oxidation photocatalysts coupled with redox-reversible electron mediator has attracted considerable attention because of the promising activity for water splitting under visible light irradiation. To improve the activity of Z-scheme water-splitting photocatalyst, how to achieve the one-way electron transfer from O2 evolution photocatalyst to H2 evolution photocatalyst through electron mediator is crucial. Dye-sensitization is one of the promising approaches not only to enhance the light absorption ability but also to improve the charge separation efficiency at the dye-semiconductor interface. We recently found that the multilayering of Ru(II) dyes on the surface of water reduction catalyst Pt-TiO2 nanoparticle (nRu@Pt-TiO2, n = number of layers of Ru(II) dyes) significantly improved the photocatalytic H2 evolution activity.[1] In this work, to enhance the electron donation from iodide, we have synthesized two different 2Ru@Pt-TiO2 nanoparticles with different surface structures: P-2Ru@Pt-TiO2 having phosphate groups on the surface and ZrP-2 Ru@Pt-TiO2 with Zr4+-phosphate groups on the surface as well as our previously reported 2Ru@Pt-TiO2 without any surface phosphonates.[2] Figure shows the results of photocatalytic H2 evolution reactions in 0.5 M aqueous KI solutions of three kinds of dye-double-layered nanoparticle photocatalysts with different surface structures. The amount of H2 produced after 6 h of light irradiation increased in the following order: 2Ru@Pt-TiO2 < P-2Ru@Pt-TiO2 < ZrP-2Ru@Pt-TiO2 . Notably, the AQY of ZrP-2Ru@Pt-TiO2 in the first hour of reaction was approximately 1%. The Ru(III)/Ru(II) redox potential of Ru(II)dye with phosphonic acid groups was reported to be shifted positively to less than 0.1 V by immobilization to the TiO2 surface or by coordination bond formation with Zr4+ cations[3], suggesting that the binding of Zr4+ to the phosphonic acid groups of Ru(II) dye has little effect on the driving force of the electron donation reaction from the iodide. The zeta potential of ZrP-2Ru@Pt-TiO2 was estimated to be +7 mV without KI, and it negatively shifted to −6 mV in the presence of 0.5 M KI. On the other hand, the shift of P-2Ru@Pt-TiO2 was estimated to be smaller (from −7 to −12 mV). The negative shifts in the 0.5 M KI aqueous solution could be ascribed to the attraction of iodide anions to the nanoparticle surface by electrostatic interactions with the surface Zr4+ cations in the case of ZrP-2Ru@Pt-TiO2, and by hydrogen-bonding interactions with the surface phosphonic acids for P-2Ru@Pt-TiO2. These results suggest that the surface structure of Ru(II) dye-sensitized Pt-TiO2 nanoparticle photocatalyst has a great influence on the reactivity with the redox mediator. Details will be discussed. Figure 1

What prevents mainstream evolutionists teaching the whole truth about how genomes evolve?

The common belief that the neo-Darwinian Modern Synthesis (MS) was buttressed by the discoveries of molecular biology is incorrect. On the contrary those discoveries have undermined the MS. This article discusses the many processes revealed by molecular studies and genome sequencing that contribute to evolution but nonetheless lie beyond the strict confines of the MS formulated in the 1940s. The core assumptions of the MS that molecular studies have discredited include the idea that DNA is intrinsically a faithful self-replicator, the one-way transfer of heritable information from nucleic acids to other cell molecules, the myth of “selfish DNA”, and the existence of an impenetrable Weismann Barrier separating somatic and germ line cells. Processes fundamental to modern evolutionary theory include symbiogenesis, biosphere interactions between distant taxa (including viruses), horizontal DNA transfers, natural genetic engineering, organismal stress responses that activate intrinsic genome change operators, and macroevolution by genome restructuring (distinct from the gradual accumulation of local microevolutionary changes in the MS). These 21st Century concepts treat the evolving genome as a highly formatted and integrated Read–Write (RW) database rather than a Read-Only Memory (ROM) collection of independent gene units that change by random copying errors. Most of the discoverers of these macroevolutionary processes have been ignored in mainstream textbooks and popularizations of evolutionary biology, as we document in some detail. Ironically, we show that the active view of evolution that emerges from genomics and molecular biology is much closer to the 19th century ideas of both Darwin and Lamarck. The capacity of cells to activate evolutionary genome change under stress can account for some of the most negative clinical results in oncology, especially the sudden appearance of treatment-resistant and more aggressive tumors following therapies intended to eradicate all cancer cells. Knowing that extreme stress can be a trigger for punctuated macroevolutionary change suggests that less lethal therapies may result in longer survival times.

Nonlinear energy sink to enhance the landing gear shimmy performance

The shimmy phenomenon is a significant concern in aircraft landing gear dynamics. The prediction of the shimmy instability is an essential issue in landing gear design to develop a passive or active suppression method. This work investigates the application of the nonlinear energy sink (NES) concept to mitigate the effects of shimmy in landing gears. The NES concept has been used in recent research on mechanical vibrations. It comprises a passive target energy transfer method that refers to a one-way energy transfer from a primary to a nonlinear subsystem. The landing gear model is based on torsional displacement coupled with the tyre classical elastic string analogy model. The NES device connects to the wheel shaft, and it comprises a mass, a linear damper, and a pure cubic spring. The numerical integration in time was used to assess the shimmy onset speed and the post-shimmy limit cycle oscillations. A parametric analysis of the landing gear nonlinear dynamics without the NES is presented. The design space of possible NES parameters is given, obeying design constraints, and inspected to assess adequate NES designs. The best NES samples are included in the landing gear dynamics to study their influence. Results have shown that the NES can adequately expand the operational speed range for no shimmy and lead to lower LCO amplitudes in the post-shimmy for a reasonable range of speeds. The NES concept’s successful employment for the landing gear dynamics suggests an enormous potential form of passive shimmy control.

Conjugated polymer coated MIL-125(Ti) as an efficient photocatalyst for selective oxidation of benzylic C[sbnd]H bond under visible light

Selective oxidation of saturated CH bonds to value-added chemicals under mild conditions is of great importance in chemical community. In this work, conjugated polymer (PMPTA) coated MIL-125(Ti) composites with type I heterojunction structure were obtained from the mixture of MIL-125(Ti), melamine and terephthalaldehyde via a solvent-free hydrothermal method. The MP-30 with optimal composition has excellent photocatalytic activity for the selective oxidation of benzylic CH bonds to their corresponding aldehydes and ketones under the illumination of 420 nm light using O2 as oxidant and N-Hydroxyphthalimide (NHPI) as co-catalyst. The conversions of fluorene catalyzed by MIL-125(Ti) and PMTPA are 32% and 65%, respectively, while the conversions of fluorene over MP-20, MP-30 and MP-40 are significantly improved, which are 86%, 99% and 77%, respectively. The characterization results from photoluminescence spectroscopy, photocurrent and band gap positions demonstrate that the one-way transfer of electrons and holes between the MIL-125(Ti) and PMTPA through the heterojunction structure allows the substrate to react rapidly on the outer layer of heterostructured MIL-125(Ti)/PMTPA, resulting an increase in photocatalytic efficiency. Moreover, the introduced heterojunction structure reduces the recombination of photo-generated electrons and holes and improves the efficiency of the conversion of holes into reaction intermediates.

An Abaqus plugin for efficient damage initiation hotspot identification in large-scale composite structures with repeated features

Identifying the hotspots for damage initiation in large-scale composite structure designs presents a significant challenge due to the high modelling cost. For most industrial applications, the finite element (FE) models are often coarsely meshed with shell elements and used to predict the global stiffness and internal loads. Because of the lack of detailed descriptions for the composite materials and 3D stress states, most of the established failure criteria are not applicable. In this work we present an Abaqus plugin tool which implements a framework to identify the hotspots by using a pre-computed database generated for specific, heavily-repeated feature types based on a given structural model. Developed with an object-oriented implementation in Python, this software is split into two main parts, specifically for feature generation and structural analysis. The pre-computed model presents a full 3D description for the considered feature and works as a submodel to the coarse structure model driven by a one-way transfer of the boundary conditions. The presented framework is an analysis tool for efficient sizing of large-scale composite structures, as it enables 3D damage analysis of the structures in critical zones with significant savings of the modelling and computational cost. The results are compared with conventional FE modelling and satisfactory agreement is observed. In addition, the software also enables the pre-computed database to be stored in an HDF5 data file for further reuse on new structures with the same feature.

Local mutations: on the tentative beginnings of molecular oncology in Britain 1980–2000

Popular and scientific accounts of the molecularisation of cancer typically attribute it to advances in laboratory science, particularly molecular geneticists. However, historical research has indicated that clinical expertise input was often vital for advancing such work. The present paper reinforces that view. Looking in detail at British research into the molecular genetics of familial cancers during the 1980s and 1990s, it shows that that research, too, depended on crucial input from family cancer clinics. Moreover, the development of clinical services for familial cancers was in turn shaped by the demands of contributing to molecular genetic research. The paper concludes that accounts of the molecularisation of cancer that suppose a one-way transfer of knowledge and practice from laboratory to clinic misrepresent the complex interactions that were involved in molecularising familial cancers, and that were informed by the particular local and national circumstances in which they took shape.

Heat transfer performance of an assembled multilayer wall in a Chinese solar greenhouse considering humidity

This paper presents a new type of assembled multilayer wall suitable for Chinese solar greenhouses, and studies the heat transfer performance of the wall with three different external insulation schemes. The results show that there is coupling in the heat and moisture transfer of the assembled multilayer wall in the solar greenhouse, but it is not obvious and is not sensitive to the change in humidity outside the room, which is beneficial to the construction of thermal environments in solar greenhouses. The relative humidity of the clay filling in the wall is kept at approximately 99%, which gives the wall a stable and efficient heat storage and release capacity that can basically realize one-way heat transfer between the wall and the indoor environment. There is a lag effect in the response of the temperature field in the wall to the change in the external temperature. Increasing the thickness of the polystyrene insulation board on the outdoor side in a certain range can reduce the lag effect and increase the heat storage of the wall by 24.95%, the heat released to the room by 41.72%, and the hourly average heat released during the heat release process by 3.08 times. The wall design concept is advanced, the heat storage and release performance is good, and the wall can be quickly assembled, reused and returned to the field on site, which is suitable for large-scale application in China and in the world.

Social learning in cluster initiatives

PurposeThe purpose of this paper is to portray social learning in cluster initiatives (CIs), namely, to explore, with the lens of the communities of practice (CoPs) theory, in what ways social learning occurs in CIs and discover how various CoPs emerge and evolve in CIs to facilitate a collective journey in their learning process. Subsequently, the authors address the following research questions: In what ways does social learning occur in CIs? How is social learning facilitated through the emergence and evolution of various CoPs in CIs?Design/methodology/approachThe study applies the abduction approach for the interpretation of the collected data and attempts to create the best explanations for the observations on the basis of the CoP theory. The qualitative study of four CIs helped to identify various ways that social learning occurs in CIs and the role of the identified CoPs in the process. Social learning is portrayed as a collective journey within and between CoPs, where the interactions of their members deepen their level of involvement and help them to enhance learning in their CoP.FindingsThe paper shows ways that social learning occurs in CIs and describes the role of CoPs. It identifies three types of CoPs in CIs: participants, cooperators and locomotives. Additionally, it documents different ways of social learning in CIs, namely, one-way or two-way information transfer and raising awareness; demonstrating and inspiring; or motivating and educating. It also shows that while potentially every member of a CI has access to these practices, only a limited number of members are actually involved. Social learning in CIs is selective and some CI members accept their role as more peripheral in their CI.Research limitations/implicationsThe research shows the application of the CoP theory to the analysis of social learning in CIs, a peculiar type of clusters. It describes how CoPs in the studied CIs varied in terms of the occurrence of learning. Furthermore, it reveals how social learning related to the level of involvement of CI members, namely, with an increase of involvement, the members formed more selective CoPs and strengthened their social learning. Nevertheless, the qualitative approach in the study and the specific sample of the CIs chosen for the analysis do not allow a generalization of the findings.Practical implicationsAlthough in different CoPs social learning occurs in different ways, at each stage of the development of CIs, the learning process is carried out on the basis of interactions created among members. Therefore, it is important to support the “soft” forms of cooperation within CIs – involving members in activities and developing interactions. In addition, to ensure the growth of their entire CI, coordinators should create conditions for the development of existing CoPs into higher forms, which better support learning. They should also adopt boundary-spanning roles between various CoPs to strengthen social learning in CIs.Originality/valueThe literature on CIs, which are peculiar forms of clusters, is still underdeveloped. The research fills in the gap concerning the ways social learning occurs in CIs. It shows that selectiveness can be observed in this process, and emphasizes the role of interactions developed through CoPs and the benefits offered by them. The study applies the CoP approach. Consequently, it expands the theoretical base in view of the generally lacking studies on social learning in CIs in the literature on clustering. Because the CoP theory has rarely been applied in the management literature, it also augments this specific field.

MDSCs paralyze T cells via one-way intercellular transfer of a toxic metabolite

MDSCs paralyze T cells via one-way intercellular transfer of a toxic metabolite

Abstract C008: Pharmacokinetic analysis of vincristine and its m1 metabolite in Kenyan pediatric cancer patients through co-modeling

Abstract Objectives: The aim of this study was to develop a pharmacokinetic (PK) model that can determine the PK of vincristine (VCR) and its M1 metabolite using concentration data from Kenyan pediatric cancer patients. VCR is one of the most widely used anticancer agents in treating a variety of malignancies in pediatric oncology. Regardless of its extensive pediatric use, dosing strategies for VCR are largely empirical as there is little information about its disposition and optimal therapeutic dosing. Our collaborator, Dr. Jamie Renbarger and her group have reported that CYP3A5 enzyme generates the major VCR metabolite, M1, more efficiently than CYP3A4 enzyme. This finding maybe clinically significant because CYP3A5 expression varies with up to 90%, 70% and 10-20% of expressions in Kenyans, African Americans and Caucasians, respectively. Therefore, it is crucial to monitor M1 and characterize its disposition in humans to provide an insight of inter-ethnic variability in VCR metabolism and clearance. Methods: Kenyan pediatric cancer patients (8 males:8 females, age range: 1-13 years, weight range: 7.0 - 36.6 kg, body surface area: 0.36 - 1.24 m2) were intravenously administered with VCR (delivered dose, 0.4 - 2.5 mg). Blood samples were collected using human dried blood spot (DBS) collection paper via finger prick at various time points depending on the feasibility and duration of patient stay for care in the hospital. Using a developed LC-MS-MS assay, the concentrations of VCR and M1 were measured from patient DBS samples. A PK compartmental model was developed through co-modeling of VCR and M1 using Phoenix (version 8.0). The model was selected based on comparison of quality of fit plots and on the likelihood ratio test on the difference of criteria (-2LL). Results: The best fit structural model for VCR and its M1 metabolite was established. The model consists of a one-way metabolite formation transfer from VCR to M1 compartments. Good correlations were observed between observed and predicted values of VCR and M1 in the subjects used. The best-fit PK parameter estimates were derived from the PK compartmental model. In one subject, values estimated for PK parameters that only our study could derive include: conversion rate constant from VCR to M1 of 0.04 1/hr, M1 metabolite volume of distribution of 51.49 L, and M1 metabolite elimination rate constant of 0.44 1/hr. Conclusion: For the first time, a compartmental PK model that could determine the PK parameters of VCR and its M1 metabolite from DBS samples through co-modeling was developed. The model resulted in a good fit for the subjects used. The model will be validated after further adjustments and could potentially be used to rationally modify future VCR dosing regimen for Kenyan pediatric patients. Further, this modification could be possibly extrapolated for African American pediatric patients. Additionally, using our validated model, we will characterize and predict the population PK of VCR and its M1 metabolite among different ethnic groups. Citation Format: Lorita Agu, Jamie Renbarger, Diana S-L. Chow. Pharmacokinetic analysis of vincristine and its m1 metabolite in Kenyan pediatric cancer patients through co-modeling [abstract]. In: Proceedings of the Twelfth AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2019 Sep 20-23; San Francisco, CA. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2020;29(6 Suppl_2):Abstract nr C008.

Conceptual and Legal Framework for Promotion of Education for Sustainable Development: Case Study for Ukraine

Promoting the sustainable development is currently a key global issue posing a challenge to all of us on personal, professional and political levels. The education plays a major role in this path, in particular the education for sustainable development (ESD). The traditional one-way transfer of knowledge is no longer sufficient to inspire the students to behave as responsible citizens. This article suggests a number of competencies, which must serve as a basis for ESD, as well as application of the multiple intelligence theory as a mechanism for implementing the competencies derived by students from ESD at the basic education level. It is proved that security competencies in the broadest sense (covering all levels, from personal to the global space) should also be included in the modern educational process. As for the university education, it is required to explain the concept of "sustainability" to all specialties without exception, including the political scientists, engineers and others. This is particularly important for training of experts dealing with the economic law issues. A lack of economic analysis in modern legal studies and development of regulations results in writing and adoption of idle laws hazardous for the country. To upgrade the education system in Ukraine, it is appropriate to develop the National Strategy on Education for Sustainable Development and its implementation plan based on the global Sustainable Development Goals. It is required to switch from traditional education to the model focused on sustainable development with the underlying extensive interdisciplinary knowledge based on an integrated approach to the development of society, economy, and environment. Implementation of this strategy should consider the adaptive nature of the regional education component, in particular the economic features of a relevant region. It is important to focus on the learning processes underlying the circular economy. Keywords: sustainable development, society, economy, environment, circular economy, education for sustainable development, sustainability, economic law.

One-way Transfer of Quantum States via Decoherence

In many quantum information processing applications, it is important to be able to transfer a quantum state from one location to another - even within a local device. Typical approaches to implement the quantum state transfer rely on unitary evolutions or measurement feedforward operations. However, these existing schemes require accurate pulse operations and/or precise timing controls. Here, we propose a one-way transfer of the quantum state with near unit efficiency using dissipation from a tailored environment. After preparing an initial state, the transfer can be implemented without external time dependent operations. Moreover, our scheme is irreversible due to the non-unitary evolution, and so the transferred state remains in the same site once the system reaches the steady state. This is in stark contrast to the unitary state transfer where the quantum states continue to oscillate between different sites. Our novel quantum state transfer via the dissipation paves the way towards robust and practical quantum control.

Quantitative analysis of the intertube coupling effect on the photoluminescence characteristics of distinct (n, m) carbon nanotubes dispersed in solution

In this work, we quantitatively studied the intertube coupling of different (n, m)-sorted semiconducting single-wall carbon nanotubes (SWCNTs) on their photoluminescence (PL) efficiencies by precisely tuning the ratio of (9, 4) and (6, 5) SWCNTs in the mixture. A significant decrease in the PL intensity of (9, 4) SWCNTs was observed after mixing with (6, 5) species when fixing the (9, 4) concentration, which was confirmed to be caused by the absorption of incident photons and reabsorption of the emitted photons by the added (6, 5) species. By contrast, a similar decrease in the PL intensity of (6, 5) SWCNTs was also observed after mixing with the larger-diameter (9, 4) species. Different from that of (9, 4) SWCNTs, the PL decrease of (6, 5) SWCNTs was found to originate not only from photon absorption and reabsorption by the (9, 4) species but also from one-way exciton energy transfer (EET) from the (6, 5) SWCNTs to the larger-diameter (9, 4) SWCNTs. Both the experimental results and numerical simulations further demonstrated that increasing the concentration of mixed (9, 4) SWCNTs would enhance the effects of photon absorption and reabsorption and EET on the PL intensity of (6, 5) SWCNTs quantified by the decrease ratio of the (6, 5) PL intensity. Meanwhile, the influence of EET was found to be always weaker than that of photon absorption and reabsorption. We proposed that the observed EET between isolated SWCNTs in a surfactant solution is derived from their proximity due to Brownian motion.

Dynamic control analysis of an eco-efficient side-stream extractive distillation configuration

A novel eco-efficient side-stream extractive distillation alternative was proposed to separate the acetone and methanol azeotrope using water as the separating agent, which evolved from thermally coupling extractive distillation configuration with a side rectifier and the classical two-way vapor and liquid communications was converted to a one-way liquid-only transfer with adding one distillation section and a corresponding reboiler. This arrangement was much more efficient and attractive in terms of the economics, energy-saving and environmental properties in comparison with the conventional and thermally coupling configurations.Dynamic control behavior analysis of this highly integrated non-ideal arrangement with and without heat integration is explored in this paper. The stable and robust regulatory control is achieved with the dual-product composition held rigorously closed to their initial steady-state design specifications by the construction of a newly effective and robust control structure when handling the large throughput and feed composition disturbances where the specially key control loops are controlling the temperatures of Stages 76 and 67 by the manipulation of the side-stream flowrate and reboiler heat duty for extractive column C1 with a feedforward action of reboiler heat duty-to-feed flowrate.

基于单向传输的光纤时延波动测量

基于单向传输的光纤时延波动测量

基于单向传输的光纤时延波动测量

基于单向传输的光纤时延波动测量

Evidence Cafés: Overcoming conflicting motivations and timings

Evidence-based practice is increasingly important in creating effective public services through the balance of high-quality research and valid practice. Yet even when academics and practitioners work together to use evidence in practice, barriers emerge. This paper describes research into equitable knowledge exchange between academia and practice, drawing on data from 15 Evidence Cafés run across the UK with police forces, involving 378 participants, represented here with three exemplar Evidence Café case studies. Our findings reveal the differences between one-way knowledge transfer and two-way, equitable knowledge exchange, and how champions and effectively designed and implemented discussion objects can overcome challenges of conflicting motivations and timing. We conclude that there is a need to reframe knowledge exchange through the lens of ‘evidence’ and the process of equitable co-creation of new meanings.

Piano playing teaching system based on artificial intelligence – design and research

In recent years, with the rise of piano teaching, many people began to learn to play the piano. However, the expensive piano teaching cost and its unique teaching model that teachers and students are one to one have caused the shortage of piano education resources, and people learn piano playing has become a luxury activity. The use of computer multimedia software for piano teaching has become a feasible way to alleviate this contradiction. This paper proposes the design of an intelligent piano playing teaching system based on neural network, studies the realization method of the piano teaching system, presents a method of evaluating piano playing by using neural network model for the difficulties in computer piano teaching, that is, computer teaching is one-way knowledge transfer without interaction. In addition, this paper simulates the teacher to guide the students to carry on the playing practice, which is of great significance to the teaching of the piano.