Digital Twin Technology of Human-Machine Integration in Cross-Belt Sorting System

The Chinese express delivery industry processes nearly 110 billion items in 2022,averaging an annual growth rate of 200%.Among the various types of sorting systems used for handling express items,cross-belt sorting systems stand out as the most crucial.However,despite their high degree of automation,the workload for operators has intensified owing to the surging volume of express items.In the era of Industry 5.0,it is imperative to adopt new technologies that not only enhance worker welfare but also improve the efficiency of cross-belt systems.Striking a balance between efficiency in handling express items and operator well-being is challenging.Digital twin technology offers a promising solution in this respect.A realization method of a human-machine integrated digital twin is proposed in this study,enabling the interaction of biological human bodies,virtual human bodies,virtual equipment,and logistics equipment in a closed loop,thus setting an operating framework.Key technologies in the proposed framework include a collection of heterogeneous data from multiple sources,construction of the relationship between operator fatigue and operation efficiency based on physiological measurements,virtual model construction,and an online optimization module based on real-time simulation.The feasibility of the proposed method was verified in an express distribution center.

A Study on the Structural Contradictions in the US-Turkey Alliance Relations

After the Cold War and especially since the Justice and Development Party administration led by Erdogan,the US-Turkey alliance relations have declined.The two countries have sharp structural contradictions on a series of issues.Due to the profound geopolitical landscape changes,the interdependence on security and defense between the United States and Turkey has been severely weakened,leading to significant divergence in threat definition and pursuit of interests.Turkey has continuously enhanced its diplomatic autonomy,seeking to change its weak position in the original alliance relations,and striving to become a regional leader.These structural contradictions inevitably trigger the hedging of policies and interests between the United States and Turkey.

The Contradiction between “Soul” and “Body” in André Gide’s Pastoral Symphony

André Gide is one of the most important writers in the history of French literature in the 20th century.His works are highly distinctive:on the one hand,there is strong coherence and beautiful language between his works,which gives them a strong musicality.On the other hand,his works delve deeper into the struggle between the“soul”and the“body”under the oppression of“religious concepts”,which is most evident in one of his representative works:Pastoral Symphony.This article will analyze and explore the contradiction between“soul”and“body”reflected in the work of“Pastoral Symphony”from three aspects:“modernity”,“aesthetics”,and“characters’prototypes”.

On Daniel Bell's The Cultural Contradictions of Capitalism

This article makes a brief introduces to Daniel Bell's The Cultural Contradictions of Capitalism which explores how a bourgeois economy coexists with an anti-bourgeois culture. This article is comprised of four parts including the concept of culture、the disjunction of three realms(economics, politics and culture)、the cultural contradictions of capitalism and the evaluation on Daniel Bell's theory. It offers a close look into the inner relation between different spheres in the capitalist society illustrated in Bell's book, and Bell's theory in terms of cultural contradictions of capitalism will be concretely elaborated.

Rereading the Contradiction in "The Hereditary House of the Marquis of Liu"

In the biography of "The Hereditary House of the Marquis of Liu," Zhang Liang,the major character,is undoubtedly regarded as a great talent in military strategy as well as a prototype of wisdom in later Chinese novels.However,the author Sima Qian compares Zhang Liang to a woman in his concluding remarks,which greatly reflect his ambiguous attitude toward Zhang Liang.To find out the reason why Zhang Liang's portrait is more significant than his image revealed in the narrative provides readers a chance to inspect how Zhang Liang's characterization was fashioned in the biography.

Hester Prynne:Contradictions and Mother's Role

Hester Prynne,heroine of Hawthorne's The Scarlet Letter,seems idealized by the narrator,yet in her attitudes and behaviors there are some contradictions that need a further study.Her role as a mother plays a vital part in all the contradictions,bringing the figure to life from the sacred shrine made for her by the narrator.To understand the significance of Hester's mother's role in her contradictions will reveal a character more human to the reader.

Deep Learning for EMG-based Human-Machine Interaction:A Review

Electromyography(EMG)has already been broadly used in human-machine interaction(HMI)applications.Determining how to decode the information inside EMG signals robustly and accurately is a key problem for which we urgently need a solution.Recently,many EMG pattern recognition tasks have been addressed using deep learning methods.In this paper,we analyze recent papers and present a literature review describing the role that deep learning plays in EMG-based HMI.An overview of typical network structures and processing schemes will be provided.Recent progress in typical tasks such as movement classification,joint angle prediction,and force/torque estimation will be introduced.New issues,including multimodal sensing,inter-subject/inter-session,and robustness toward disturbances will be discussed.We attempt to provide a comprehensive analysis of current research by discussing the advantages,challenges,and opportunities brought by deep learning.We hope that deep learning can aid in eliminating factors that hinder the development of EMG-based HMI systems.Furthermore,possible future directions will be presented to pave the way for future research.

Fully Fabric-Based Triboelectric Nanogenerators as Self-Powered Human-Machine Interactive Keyboards

Combination flexible and stretchable textiles with self-powered sensors bring a novel insight into wearable functional electronics and cyber security in the era of Internet of Things.This work presents a highly flexible and self-powered fully fabric-based triboelectric nanogenerator(F-TENG)with sandwiched structure for biomechanical energy harvesting and real-time biometric authentication.The prepared F-TENG can power a digital watch by low-frequency motion and respond to the pressure change by the fall of leaves.A self-powered wearable keyboard(SPWK)is also fabricated by integrating large-area F-TENG sensor arrays,which not only can trace and record electrophysiological signals,but also can identify individuals’typing characteristics by means of the Haar wavelet.Based on these merits,the SPWK has promising applications in the realm of wearable electronics,self-powered sensors,cyber security,and artificial intelligences.

Human-machine compatibility and dynamic analysis of a novel unpowered and self-adaptive shoulder rehabilitation exoskeleton

To reduce the complexity of the configuration and control strategy for shoulder rehabilitation exoskeleton,a 2R1R1P2R serial of shoulder exoskeleton based on gravity balance is proposed.Based on three basic rotatory shoulder joints,an exact kinematic constraint system can be formed between the exoskeleton and the upper arm by introducing a passive sliding pair and a center of glenohumeral(CGH)unpowered compensation mechanism,which realizes the human-machine kinematic compatibility.Gravity balance is used in the CGH compensation mechanism to provide shoulder joint support.Meanwhile,the motion of the compensation mechanism is pulled by doing reverse leading through the arm to realize the kinematic self-adaptive,which decreases control complexity.Besides,a simple and intuitive spring adjustment strategy is proposed to ensure the gravity balance of any prescribed quality.Furthermore,according to the influencing factors analysis of the scapulohumeral rhythm,the kinematic analysis of CGH mechanism is performed,which shows that the mechanism can fit the trajectory of CGH under various conditions.Finally,the dynamic simulation of the mechanism is carried out.Results indicate that the compensation torques are reduced to below 0.22 N·m,and the feasibility of the mechanism is also verified.

Unprecedented Emergence of the World Structural Contradictions

In recent years, profound and complex transformations in the world order have emerged on the global landscape, which are marked by the following attributes. First, strategic tension between the major powers,namely China and the US, is unfolding in a more notable way than ever before. Second, conflicts between the public and private enterprises in the economic sector are deepening. Third, globalization is at the crossroad,featuring contradictions between nationalism and globalism. Last,uncertainties of the future world reflect also in the debates over conflicting concepts and ideologies.

Web GIS Human-Machine Interactive Interface Design with VISI

The fusion of VlSI （visual identity system Internet）, digital maps and Web GIS is presented. Web GIS interface interactive design with VISI needs to consider more new factors. VISI can provide the design principle, elements and contents for the Web GIS. The design of the Wuhan Bus Search System is fulfilled to confirm the validity and practicability of the fusion.

Changes in the Features of Major Contradictions

Immediately after humanity entered the new century,the worldseems somewhat a bit turbulent because of the following events.First are the September 11 events,which were followed by U.S.militaryattacks against Afghanistan.Last year witnessed the continuity of Arab-Israel conflicts in the Middle East,and at the very beginning of the newyear,the United States dispatched warships to the Persian Gulf for a“war to topple the Saddam regime”.The Democratic People’s Republicof Korea(DPRK)suddenly declared that it has decided to withdraw fromthe Nuclear Non-proliferation Treaty just after Iraq stated that it wasdetermined to resist the United States.Whither the world in the new year?This is a question that all of the academic circles on international relationsare trying to answer.To this end,on January 9,2002,we speciallyinvited Lu Zhongwei,Research Professor and President of China Instituteof Contemporary International Relations and some other experts oninternational relations from the institute to hold a symposium with the theme“Prospect on World Trend 2003.”Now we present their discussions as anew-year gift to our readers who are always in support of our journal.Wehope this would do a bit for their mastery of international situation.

Possibilities and Contradictions of Nanotechnology Applications in Preventive Activities Insurer

One effective and proven tool for managing risk is insurance. At the same time, insurers, reinsurers, insurance, and reinsurance brokers in search of the relevant value of their services in the eyes of insured and long-term benefits are increasingly paying attention to the possibilities of nanotechnology. On one hand, insurers see unlimited possibilities of nanotechnology in preventive and repressive activity in relation to losses. The obstacle in this case, for high-tech companies, is stiff competition from companies which are not innovation leaders, but with the necessary influence and power at the international and national market. On the other hand, understanding the reasons for the application of nanotechnology in the conflict prevention activities of the insurer allows him to develop and implement a more flexible strategy for sustainable development of the business.

Iraq War and Principal contradictions in World Politics

Nobody denies that the Iraq war launched by America is a local war that is of global influence and beyond the anti-terror campaign. The various contentions among major world political powers before and after the war reveal that the world strategic structure that is changing since the end of the Cold War has gone through another grave impact after the 9/11 events. The paper does not want to make an

Proof of Riemann Conjecture Based on Contradiction between Xi-Function and Its Product Expression

Riemann proved three results: analytically continue ζ(s) over the whole complex plane s =σ + it with a pole s =1;(Theorem A) functional equation ξ(t) = G(s0)ζ (s0), s0 =1/2 + it and (Theorem B) product expression ξ1(t) by all roots of ξ(t). He stated Riemann conjecture (RC): All roots of ξ (t) are real. We find a mistake of Riemann: he used the same notation ξ(t) in two theorems. Theorem B must contain complex roots;it conflicts with RC. Thus theorem B can only be used by contradiction. Our research can be completed on s0 =1/2 + it. Using all real roots rk and (true) complex roots zj = tj + iaj of ξ (z), define product expressions w(t), w(0) =ξ(0) and Q(t) > 0, Q(0) =1 respectively, so ξ1(t) = w(t)Q(t). Define infinite point-set L(ω) = {t : t ≥10 and |ζ(s0)| =ω} for small ω > 0. If ξ(t) has complex roots, then ω =ωQ(t) on L(ω). Finally in a large interval of the first module |z1|>>1, we can find many points t ∈ L(ω) to make Q(t) . This contraction proves RC. In addition, Riemann hypothesis (RH) ζ for also holds, but it cannot be proved by ζ.

BLIND SPEECH SEPARATION FOR ROBOTS WITH INTELLIGENT HUMAN-MACHINE INTERACTION

Speech recognition rate will deteriorate greatly in human-machine interaction when the speaker's speech mixes with a bystander's voice. This paper proposes a time-frequency approach for Blind Source Seperation (BSS) for intelligent Human-Machine Interaction(HMI). Main idea of the algorithm is to simultaneously diagonalize the correlation matrix of the pre-whitened signals at different time delays for every frequency bins in time-frequency domain. The prososed method has two merits: (1) fast convergence speed; (2) high signal to interference ratio of the separated signals. Numerical evaluations are used to compare the performance of the proposed algorithm with two other deconvolution algorithms. An efficient algorithm to resolve permutation ambiguity is also proposed in this paper. The algorithm proposed saves more than 10% of computational time with properly selected parameters and achieves good performances for both simulated convolutive mixtures and real room recorded speeches.

A Robotic Teleoperation System for Precise Robotic Manipulation by Human-Machine Interaction

Teleoperation is of great importance in the area of robotics,especially when people are unavailable in the robot workshop.It provides a way for people to control robots remotely using human intelligence.In this paper,a robotic teleoperation system for precise robotic manipulation is established.The data glove and the 7-degrees of freedom(DOFs)force feedback controller are used for the remote control interaction.The control system and the monitor system are designed for the remote precise manipulation.The monitor system contains an image acquisition system and a human-machine interaction module,and aims to simulate and detect the robot running state.Besides,a visual object tracking algorithm is developed to estimate the states of the dynamic system from noisy observations.The established robotic teleoperation systemis applied to a series of experiments,and high-precision results are obtained,showing the effectiveness of the physical system.

Political Reform in Brazil and Contradictions in the Legal Understanding of Party Loyalty

The Superior Electoral Court anticipated the political reform with the creation of party loyalty, reproduced in infra constitutional legislation by Law n°. 13.165/2015. The change in the electoral system allows imagine the foundation of a State Parties in Brazilian democracy. Although most constitutions incorporate the virtual mandate idea, or representative, according thought of Burke and Sieyes, the democratic legitimacy requires control mechanisms and accountability of representatives to the population, including legal. It takes up to the imperative mandate, not in Rousseauian molds, but tied to party guidelines, founding party mandates. The ownership of the mandate by the political party moves towards the strengthening of key players who are partisan associations in the electoral process. On the other hand, it is not obvious that political parties meet the necessary conditions for the establishment of an imperative mandate tied to party deliberations, since patent oligarchic and bureaucratic character of much of them, whose process of deliberation and choice of leaders and political positions do not require internal democracy. This reflection induces the political and party system to wonder if the role they playing in democracy helps to combat political inequality or strength it, by analyzing the dynamics of party migration in Brazil.

Defining Landscape： Resolving Contradictions at Postcolonial Omhedi, the Oukwanyama Royal Palace, Namibia

The history of Omhedi in north-central Namibia is not simply about place but is a site that internalizes conflictual and contradictory social forces which are inscribed in place. While Omhedi was a contested site of conflict during the war of liberation and served as a stage for ethnographic tours and photography, it has in post-colonial period come to represent a segment of important local power as it is currently the seat of the new Oukwanyama kingship. The central aim of this paper is to explain the transformation of Omhedi as a site of＂spectacles＂ of culture during the colonial period and as the seat of Oukwanyama monarchy in post-colonial Namibia. It centrally asks how the colonial politics of the time influenced the way Omhedi was organized and accessed and the ways in which people attach meaning to and organize a sense of space and place in the postcolonial era. This paper is significant as it explores how political legitimacy can be reactivated at such a contradictory site of＂traditional＂ power like Omhedi and what meanings these hold in terms of access in postcolonial Namibia. I conclude by raising issues of the past with the restoration of the Oukwanyama monarchy and its installation at Omhedi after independence, posing key questions about shifts in political legitimacy in both the colony and the post-colony. My analysis utilizes theories on the important use of landscape as a physical ＂space＂ for living, but also as a ＂place＂ with its meanings and contributions to societal identity. Consequently the place identity is a particular element contributing to sense of place. I argue that there exists a sense of nostalgia that many Ovakwanyama people have for a precolonial past, and the Omhedi landscape serves that purpose. In analyzing these sentiments against the construction of Omhedi as a space and place, this highlights a sense of identity and belonging that many Ovakwanyama people have towards Omhedi in default of any site with deeper legitimation or authenticity.

TWO PAIRS OF STRUCTURAL CONTRADICTIONS IN CHINA-US-LATIN AMERICA RELATIONS： HOW TO VIEW THEM

Before his multi-stop visit to Mexico, Argentina, Peru, Colombia and Jamaica in Latin America and the Caribbean （LAC） early February 2018, then U.S. Secretary of State Rex Tillerson released many signals for Latin America. Especially in his remarks at the University of Texas at Austin, he portrayed the presence of China and Russia in LAC as a ＂new imperial power＂ and called on nations of Latin America and the Caribbean to review and reassess China-LAC relations. By identifying China and Russia as critical reference variables for future U.S.- Latin America relations, he obviously went beyond the bilateral level of U.S.- Latin relations and implied the important changes in U.S. policy toward LAC that pressured by growing influence of extra-regional actors in LAC, the United States might strengthen its diplomatic efforts in LAC to maintain and consolidate its dominance in the region.