Deepening the Reform of College English Classroom Teaching-Exploration of Hierarchical Teaching in Class——Take Qingdao Huanghai University for Example

In the era of knowledge economy, the key is to cultivate talents with comprehensive quality. It’s known that people’s qualities are identical and different. Only by making full use of people’s differences, can we cultivate outstanding talents who conform to social development. Class hierarchical teaching as a new teaching mode, breaks the traditional class teaching mode, to a certain extent, in line with the requirements of quality education. Based on the college English situation of the students in the school where I’m teaching, this paper attempts to explore the hierarchical teaching of College English in class.

Defects and morphology engineering for constructing V_(s)-Ni_(3)S_(2)@V_(s)-Cu_(2)S nanotube heterojunction arrays toward efficient bifunctional electrocatalyst for overall water splitting

The development of highly active,stable and inexpensive electrocatalysts for hydrogen production by defects and morphology engineering remains a great challenge.Herein,S vacancies-rich Ni_(3)S_(2)@Cu_(2)S nan-otube heterojunction arrays were in-situ grown on copper foam(V_(s)-Ni_(3)S_(2)@V_(s)-Cu_(2)S NHAs/CF)for efficient electrocatalytic overall water splitting.With the merits of nanotube arrays and efficient electronic mod-ulation drived by the OD vacancy defect and 2D heterojunction defect,the resultant V_(s)-Ni_(3)S_(2)@V_(s)-Cu_(2)S NHAs/CF electrocatalyst exhibits excellent electrocatalytic activity with a low overpotential of 47 mV for the hydrogen evolution reaction(HER)at 10 mA cm^(-2) current density,and 263 mV for the oxygen evolution reaction(OER)at 50 mA cm^(-2) current density,as well as a cell voltage of 1.48 V at 10 mA cm^(-2).Moreover,the nanotube heterojunction arrays endows V_(s)-Ni_(3)S_(2)@V_(s)-Cu_(2)S NHAs/CF with outstanding stability in long-term catalytic processes,as confirmed by the continuous chronopotentiom-etry tests at current densities of 10 mA cm^(-2) for 100 h.

Insight into the synergistic effect of defect and strong interface coupling on ZnIn_(2)S_(4)/CoIn_(2)S_(4)heterostructure for boosting photocatalytic H_(2) evolution

Steering the directional carrier migration across the interface is a central mission for efficient photocatalytic reactions.In this work,an atomic-shared heterointerface is constructed between the defect-rich ZnIn_(2)S_(4)(HVs-ZIS)and CoIn_(2)S_(4)(CIS)via a defect-guided heteroepitaxial growth strategy.The strong interface coupling induces adequate carriers exchanging passageway between HVs-ZIS and CIS,enhancing the internal electric field(IEF)in the ZnIn_(2)S_(4)/CoIn_(2)S_(4)(HVs-ZIS/CIS)heterostructure.The defect structure in HVs-ZIS induces an additional defect level,improving the separation efficiency of photocarriers.Moreover,promoted by the IEF and intimate heterointerface,photogenerated electrons trapped by the defect level can migrate to the valence band of CIS,contributing to massive photogenerated electrons with intense reducibility in HVs-ZIS/CIS.Consequently,the HVs-ZIS/CIS heterostructure performs a boosted H_(2)evolution activity of 33.65 mmol g^(-1)h^(-1).This work highlights the synergistic effects of defect and strong interface coupling in regulating carrier transfer and paves a brave avenue for constructing efficient heterostructure photocatalysts.

Values and Paths of Ideological and Political Education in College English Teaching in Applied Universities

As the state promotes teaching reform with the goal of ideological and political education,the teaching of various disciplines in colleges and universities is facing new challenges and novel research topics.In applied colleges and universities,as a compulsory course of general education,the ideological and political education elements have not been deeply explored,and the function of ideological and political education that should be undertaken by English teaching has not been fully realized.This paper analyzes the value of ideological and political education in college English in applied colleges and universities and discusses the effective path of ideological and political education in college English in applied colleges and universities from the four levels of teachers,teaching materials,teaching methods,and curriculum.

Problem Analysis and Effective Strategies of Ecological Civilization Education for Undergraduates in the New Age

The ecological civilization in the new age is one important aspect for undergraduates.We must enhance the concept of their civilization and improve the quality of civilization.Carrying out ecological civilization education in colleges and universities has a practical significance for enriching the contents of ideological and political education to realize their all-round development.Nowadays,some undergraduates lack awareness of ecological civilization and ignore its importance.For this reason,undergraduates need to pay attention to ecological civilization and improve their own ecological civilization literacy to promote the all-round development in qualities in the new age.This paper mainly analyzes the current problems in undergraduates’ecological civilization education and explores effective strategies to solve the current problems in undergraduates’ecological civilization education.The strategies include integrating ecological civilization resources,innovating methods of ecological civilization,strengthening ecological educator team construction,embodying ecological culture in campus construction and creating the atmosphere,emphasizing innovative practices for ecological civilization,strengthening publicity of social-ecological civilization,and attaching importance to family education of ecological civilization.

Visual Representation and Cognitive Models in Information Visualization

As a branch of computer science,information visualization aims to help users understand and analyze complex data through graphical interfaces and interactive technologies.Information visualization primarily includes various visual structures such as time-series structures,spatial relationship structures,statistical distribution structures,and geographic map structures,each with unique functions and application scenarios.To better explain the cognitive process of visualization,researchers have proposed various cognitive models based on interaction mechanisms,visual perception steps,and novice use of visualization.These models help understand user cognition in information visualization,enhancing the effectiveness of data analysis and decision-making.

Delay-CJ:A novel cryptojacking covert attack method based on delayed strategy and its detection

Cryptojacking is a type of resource embezzlement attack,wherein an attacker secretly executes the cryptocurrency mining program in the target host to gain profits.It has been common since 2017,and in fact,it once became the greatest threat to network security.To better prove the attack ability the harm caused by cryptojacking,this paper proposes a new covert browser-based mining attack model named Delay-CJ,this model was deployed in a simulation environment for evaluation.Based on the general framework of cryptojacking,Delay-CJ adds hybrid evasion detection techniques and applies the delayed execution strategy specifically for video websites in the prototype implementation.The results show that the existing detection methods used for testing may become invalid as result of this model.In view of this situation,to achieve a more general and robust detection scheme,we built a cryptojacking detection system named CJDetector,which is based on cryptojacking process features.Specifically,it identifies malicious mining by monitoring CPU usage and analyzing the function call information.This system not only effectively detects the attack in our example but also has universal applicability.The recognition accuracy of CJDetector reaches 99.33%.Finally,we tested the web pages in Alexa 50K websites to investigate cryptojacking activity in the real network.We found that although cryptojacking is indeed on the decline,it remains a part of network security threats that cannot be ignored.

An Innovative Study on the Path of Integrating Curriculum Ideology and Politics in College English Teaching:Taking An Overview of Chinese Culture as an Example

With the rapid development of information technology and the Internet,people can easily and quickly obtain news and information from all over the world.As the state’s requirements for the curriculum ideology and politics are being strengthened,it is necessary to adapt to the needs of the times and integrate ideology and politics into college English teaching.Integration of ideology and politics into teaching is a challenge faced by colleges and universities nowadays,which aims to make ideology and politics alive and well and more acceptable to contemporary college students.In view of this,this paper starts with the importance of the integration of ideology and politics into college English teaching,takes An Overview of Chinese Culture as an example,analyzes new approaches for integrating ideology and politics into the teaching process,and formulates the teaching design centered around these approaches,so as to promote the organic integration of ideology and politics with English teaching.

A Security Enhancement Model Based on Switching Edge Strategy in Interdependent Heterogeneous Cyber-Physical Systems

With the advent of cross-domain interconnection,large-scale sensor network systems such as smart grids,smart homes,and intelligent transportation have emerged.These complex network systems often have a CPS(Cyber-Physical System)architecture and are usually composed of multiple interdependent systems.Minimal faults between interdependent networks may cause serious cascading failures between the entire system.Therefore,in this paper,we will explore the robustness detection schemes for interdependent networks.Firstly,by calculating the largest giant connected component in the entire system,the security of interdependent network systems under different attack models is analyzed.Secondly,a comparative analysis of the cascade failure mechanism between interdependent networks under the edge enhancement strategy is carried out.Finally,the simulation results verify the impact of system reliability under different handover edge strategies and show how to choose a better handover strategy to enhance its robustness.The further research work in this paper can also help design how to reduce the interdependence between systems,thereby further optimizing the interdependent network system’s structure to provide practical support for reducing the cascading failures.In the later work,we hope to explore our proposed strategies in the network model of real-world or close to real networks.

The Research on the Analysis and Application of Detecting Underground Civil Air Defense with GPR

On the basis of the principle of Ground Penetrating Radar (GPR) method and geophysical characteristics, this paper discusses in detail detection method of civil air defense distinguished by GPR under the complex geological condition through using the analysis and application in the survey of underground civil air defense as an example. Three dimensional image of the defense clearly reflects its underground structure. Test result has the greatly high detection precision. This example illustrates the effectiveness and practicability of GPR in the respect of detection of the civil air defense and also accumulates experiences for the application of GPR in urban geological survey.

Simulation and Optimization Design Based on Adams Engine Mounting System

The content of this subject research is to conduct optimization for engine mounting system, and through optimization, it can make the vibration between engine and vehicle body achieve a minimum, using Adams software for simulation. It studies the isolation vibration of the engine mounting system and conducts goal optimization for fixed frequency. This paper uses two methods for optimization. One is to use the rational allocation of fixed frequency to optimize the fixed frequency, and the other is to use energy decoupling method to optimize the fixed frequency. It uses Adams software for simulation of the optimized fixed frequency and conducts comparison of simulated results. The simulated results show that the optimized energy distribution situation almost achieves 90%. Compared with original data, decoupling degree also has a very great improvement, illustrating that the optimized data has greater effect for the isolated vibration of engine, in order to further verify the feasibility of optimization design method.

The Simulation and Optimization Design of Adams-based Engine Suspension System

In this study, the engine suspension system was optimized for making the vibration between engine and car body minimized, and also the optimization was simulated using software Adams. The purpose of this study was to research the vibration isolation of the engine mounting system and implement multi-objective optimization for the intrinsic frequency. In this paper, the optimization was implemented in two ways： （1） the intrinsic frequency was optimized by reasonably allocating it： （2） the intrinsic frequency was optimized using energy decoupling. The optimized intrinsic frequencies were simulated using software Adams and then the simulation results were compared. The simulation results showed that the optimized energy distribution was almost up to 90% and the decoupling degree was greatly improved by comparing the initial data, proving the optimized data played a geater effect on engine vibration isolation and further verifying the feasibility of optimization design method.

Modeling and Control Strategy of Built-in Skin Effect Electric Tracing System

In order to ensure the safety of fluid flow in deep-water submarine pipelines,a safe and energy-saving built-in skin effect electric heat tracing technology was adopted as the thermal management strategy.The magnetic field distribution of built-in skin effect heating system is analyzed based on the mechanism of built-in skin effect heating system,so as to obtain the equivalent circuit model of built-in skin effect electric heating system.Meanwhile,heating power is introduced as an intermediate variable to establish the relationship between power supply frequency and built-in skin effect heating temperature.Aiming at the skin effect electric heating system,an Active Disturbance Rejection Control(ADRC)method is proposed macroscopically based on Hammerstein model.Firstly,the parameters of Hammerstein model are identified and optimized using the auxiliary model and standard particle swarm optimization algorithm.Then,the ADRC controller of linear link is designed,and the required heating temperature is used to solve the intermediate variable heating power.Finally,inversion calculation is applied in the nonlinear link to solve the required power frequency,so as to achieve the purpose of efficient heating and verify the feasibility and effectiveness of control strategy through simulation.

Reliability Analysis of Heterogeneous Sensor-Cloud Systems against Targeted Attacks

Based on the wide application of cloud computing and wireless sensor networks in various fields,the Sensor-Cloud System(SCS)plays an indispensable role between the physical world and the network world.However,due to the close connection and interdependence between the physical resource network and computing resource network,there are security problems such as cascading failures between systems in the SCS.In this paper,we propose a model with two interdependent networks to represent a sensor-cloud system.Besides,based on the percolation theory,we have carried out a formulaic theoretical analysis of the whole process of cascading failure.When the system’s subnetwork presents a steady state where there is no further collapse,we can obtain the largest remaining connected subgroup components and the penetration threshold.Theoretically,this result is the critical maximum that the coupled SCS can withstand.To verify the correctness of the theoretical results,we further carried out actual simulation experiments.The results show that a scale-free network priority attack’s percolation threshold is always less than that of ER network which is priority attacked.Similarly,when the scale-free network is attacked first,adding the power law exponentλcan be more intuitive and more effective to improve the network’s reliability.

Research on Paperless and Paperless Assessment of College Foreign Languages in Digital Environment

With the rapid development of digital technology, the advantages of digital teaching mode of college foreign languages have become increasingly prominent. Challenges and problems are faced in the practice of college foreign language teaching in China. One of the problems we should try to solve is to improve students' cultural awareness and intercultural communicative competence. The digital environment has greatly expanded students' learning space. At present, the focus of college foreign language teaching reform is how to make full use of advanced digital technology and gradually change the traditional college foreign language teaching environment and means. After many students enter the university, they have not changed their foreign language learning concepts and lack the enthusiasm and initiative of foreign language learning. The reform and practice of the comprehensive test mode of foreign language proficiency is not only a process of paperless paperless evaluation of learners' foreign language use ability, but also a process of encouraging learners to improve their comprehensive ability to use foreign languages through the evaluation process.

The Root Cause of the Anti-globalization Movement in the United States:the Erosion of the Level-standard Economy

This paper uses Qian’s level-standard economy approach to analyze the losses and gains of American globalization in the Neoliberal Era.Analysis found that:level-standard economy’s sectors are the losers during the process of American globalization in the Neoliberal Era;and super levelstandard economy’s sectors are the winners during the process of American globalization in the Neoliberal Era.The erosion of the level-standard economy has great harm and impact on related parties,so that the USA emerges the movement of populist backlash against globalization.This paper proposes 4 measures to solve this dilemma,i.e.,to impose higher tax rates on the winners of American globalization in the Neoliberal Era,to subsidize more to the losers of American globalization in the Neoliberal Era,to moderately relocate manufacturing and other industries back to the U.S.,and to further strengthen transnational cooperation.

A Study on the Application of the Chinese English Competence Scale in College English Teaching

The results of the assessment of College Students'English Reading Comprehension Scale based on the Chinese EnglishCompetence Scale show that the assessment of language competence scale can diagnose English teaching and learning in HigherVocational colleges. In order to construct the scale of Chinese college students'ability to speak and act in English, we should ensurethe universality, representativeness and authority of the source of descriptive language and the accuracy, clarity, conciseness,independence and affirmation of descriptive language. Learners can also use the scale to self-evaluate and establish their ownlearning goals. At the same time, the learning time required for each stage is not the same. The learner should determine his ownlearning plan according to his own situation and the standard reference provided by the scale. Its ability grading reflects thecorrespondence between the English level of students in each scholastic school and the ability to describe the descriptors, and it istargeted and instructive for college English teaching. In order to continuously improve the learning effect of college Englishteaching.

Enlightenment of the Chinese English Competence Scale on College English Teaching in Applied Colleges and Universities

CSE (China's Standards of English) is China's first English proficiency assessment standard covering all semester. Its abilitygrading reflects the correspondence between the English level of students in each scholastic school and the ability to describe thedescriptors, and it is targeted and instructive for college English teaching. As an English assessment reform that benefits allChinese English learners, the Chinese English Proficiency Rating Scale has an epoch-making significance. One of the core tasks ofthe construction of foreign language assessment system is to formulate a unified competency assessment standard, and to provide ascientific competency index system and accurate Competency Scale for various foreign language examinations. CSE provides acommon reference framework for English learning, teaching and assessment in China, and combines English learning, Englishteaching and English assessment system. Improving the quality of teaching is a concern of every English teacher. The introductionof CSE undoubtedly provides authoritative criteria and powerful impetus for the deepening and refinement of College Englishreform.

A Study on the Integration of Chinese Excellent Traditional Culture and College English Teaching

At present, the education of English curriculum has become one of the main courses of higher education in China. The purpose ofEnglish teaching is to enable students to master the language and use it for intercultural communication. As the main body offoreign exchange in the new era, college students are facing the heavy responsibility of the development of the new era and theimportant carrier of foreign exchange. The infiltration of Chinese excellent traditional culture into college English teaching can notonly deepen students'understanding of Western culture, but also enable them to appreciate the vastness and depth of their ownnational culture, thus promoting cultural integration and improving students' English cognitive and application level. Infiltration inEnglish teaching is an innovation in the ways and methods of ideological and moral education. Strengthen the teaching of Chinesetraditional Chinese culture in college English, encourage English teachers to integrate into the teaching innovation of Chineseexcellent traditional culture, create a classroom teaching atmosphere of Chinese excellent traditional culture, and innovate teachingmethods to create an environment for the introduction of Chinese excellent traditional culture.

Unbalanced International News Flow and News Bias in Western Media

With the rapid development of mass media, a new media age comes into being. Accompanied with the rising of advanced capitalism, the print media brings us a new“mass sphere”. In the field of international journalism and communication, it is still exist that international news is unbalanced and biased in first world countries’media. However, the imbalance of international public opinion is just a big problem for third world countries. Therefore, it is very necessary and significant to analyze this subject. Starting from the globalization, this paper argues the imbalance and news bias of reporting upon international issues in western media, so as to provide some ideas and promote the better development of the subject.