Mobile Micro Research Articles

A Joint Optimization Algorithm for Trajectory Planning and Resource Allocation of Vehicle Mobile Base Stations for On-Demand Coverage Networks

In today’s urban hotspot regions, service traffic exhibits dynamic variations in both time and location. Traditional fixed macro base stations (FMBSs) are unable to meet these dynamic demands due to their fixed coverage and capacity. Therefore, this paper introduces a novel algorithm for the joint optimization of the placement of terrestrial vehicle-mounted mobile micro base stations (mBSs), the correlation of service clusters (SCs) with mBSs, and resource assignments. The objective is to maximize the matching degree between network capacity and service demands while adhering to constraints related to the power, coverage, and bandwidth of mBSs, as well as the data rate required for the services. Additionally, we investigate the mobility of the mBSs towards the SCs in the spatiotemporal changing service demand network and obtain optimal trajectories for the mBSs. We begin by formulating the problem of maximizing the matching degree by analyzing the capacity provided by the base stations and the network service demand. Subsequently, we derive solutions to the optimization problem using our algorithm. The simulation results demonstrate that the proposed algorithm can effectively meet the capacity demand of dynamically changing hotspot regions and achieve on-demand, resilient coverage of hotspot regions in the network.

Application of information technology in judicial field: The development model of online litigation in China

Applying communication technology to the judicial field can improve litigation efficiency and reduce judicial costs, which is the direction of judicial system development. China's online litigation has achieved rapid development in recent years, establishing a nationwide unified online litigation platform and putting it into practical operation. However, it also faces some questions and challenges. This article analyzes the construction mode of China's online litigation platform “Mobile Micro Court” and the fairness of access to the online court based on its actual operation. This article argues that when building online litigation platforms and setting up online litigation rules, it is necessary to adhere to the parties-oriented approach, making it the primary goal of online litigation to facilitate access to justice and prevent online litigation from being alienated as a tool for courts to improve work efficiency. The analysis of the development model of online litigation in China can provide a reference for other countries to develop online litigation systems.Online litigation; Access to justice; Information technology; Mobile micro court; Parties-oriented

A Brief Discussion on The Influence of Digital Mobile Micro Education Teaching Methods on College Students' English Vocabulary Teaching Design

Digital and micro-teaching methods play a pivotal role in the educational landscape, fostering effective English language learning. Vocabulary proficiency is crucial for acquiring a second language, underpinning meaningful interactions. Identifying key factors enhancing students' English vocabulary is imperative. This study investigates the influence of digital mobile teaching and micro-teaching on students' English vocabulary, delving into how student readiness and engagement moderate this relationship. Data was collected from 425 English language course students using a questionnaire derived from prior research, employing a simple random sampling technique. Responses were measured on a 5-point Likert scale and analyzed using SPSS and innovative PLS software. The outcomes underscore the significant impact of both digital mobile teaching and micro-teaching on English vocabulary. Moreover, student readiness and engagement emerged as moderators in the connection between these teaching methods and vocabulary enhancement. These findings affect students and educational institutions seeking to enrich language learning. Future studies could explore additional variables further optimizing digital mobile teaching and microteaching's impact on English vocabulary.

Biomedical Micro‐/Nanomotors: Design, Imaging, and Disease Treatment

AbstractUntethered mobile micro‐/nanomotors (MNMs), as newly‐emerging attractive and versatile nanotechnologies, are expected to be the next‐generation disease treatment tools, for breaking through the limitations of conventional passive drug delivery manner. However, the advances in these fascinating platforms have been hampered by the complexity of the biological environment and the particularity of disease microenvironment. Consequently, specific design strategies and clinical imaging techniques are essential to ensure the high‐efficiency of biomedical MNMs on actuation, targeting, localization, and therapy when performing assigned in vivo tasks. This review thus comprehensively addresses three aspects of biomedical MNMs, including design, imaging, and disease treatment, highlighting the intelligent MNMs with biomimetic functionality and chemotactic capability, emphasizing the applicability of different imaging techniques, and focusing on various proof‐of‐concept studies based on physiological characteristics for the treatment of major diseases. In addition, the key challenges and limitations of current biomedical MNMs are addressed, which may inspire future research and facilitate translation toward clinical treatment.

The flying insect thoracic cuticle is heterogenous in structure and in thickness-dependent modulus gradation

The thorax is a specialized structure central to insect flight. In the thorax, flight muscles are surrounded by a thin layer of cuticle. The structure, composition, and material properties of this chitinous structure may influence the efficiency of the thorax in flight. However, these properties, as well as their variation throughout the thorax and between insect taxa, are not known. We provide a multi-faceted assessment of thorax cuticle for fliers with asynchronous (honey bee; Apis mellifera) and synchronous (hawkmoth; Manduca sexta) muscles. These muscle types are defined by the relationship between their activation frequency and the insect's wingbeat frequency. We investigated cuticle structure using histology, resilin distribution through confocal laser scanning microscopy, and modulus gradation with nanoindentation. Our results suggest that thorax cuticle properties are highly dependent on anatomical region and species. Modulus gradation, but not mean modulus, differed between the two types of fliers. In some regions, A. mellifera had a positive linear modulus gradient from cuticle interior to exterior of about 2 GPa. In M. sexta, modulus values through cuticle thickness were not well represented by linear fits. We utilized finite element modeling to assess how measured modulus gradients influenced maximum stress in cuticle. Stress was reduced when cuticle with a linear gradient was compressed from the high modulus side. These results support the protective role of the A. mellifera thorax cuticle. Our multi-faceted assessment advances our understanding of thorax cuticle structural and material heterogeneity and the potential benefits of material gradation to flying insects. Statement of significanceThe insect thorax is essential for efficient flight but questions remain about the contribution of the exoskeletal cuticle. We investigated the microscale properties of the thorax cuticle, a crucial step to determine its role in flight. Techniques including histology, nanoindentation, and confocal laser scanning microscopy revealed that cuticle properties vary through cuticle thickness, by thorax region, and between species with asynchronous (honey bee; Apis mellifera) and synchronous (hawkmoth; Manduca sexta) muscles. This variation highlights the importance of high resolution cuticle assessment for flying insect lineages and points to factors that may (modulus gradation) and may not (mean modulus) contribute to different flight forms. Understanding material variation in the thorax may inform design of technologies inspired by insects, such as mobile micro robots.

Interactions between Biomedical Micro-/Nano-Motors and the Immune Molecules, Immune Cells, and the Immune System: Challenges and Opportunities.

Mobile micro- and nano-motors (MNMs) emerge as revolutionary platforms for biomedical applications, including drug delivery, biosensing, non-invasive surgery, and cancer therapy. While for applications in biomedical fields and practical clinical translation, the interactions of these untethered tiny machines with the immune system is an essential issue to be considered. This review highlights the recent approaches of surpassing immune barriers to prevent foreign motors from triggering immune responses. In addition to trials focusing on the function preservation of MNMs, examples of versatile MNMs working with the immune components (immune molecules, immune cells and the whole system) to achieve cancer immunotherapy, immunoassay, and detoxification are outlined. The immune interference part provides researchers an idea about what is the limit presented by the immune components. The coworking part suggests ways to bypass or even utilize the limit. With interdisciplinary cooperation of nanoengineering, materials science, and immunology field, the rationally designed functional MNMs are expected to provide novel opportunities for the biomedical field.

Next-Generation Self-Assembled Anisotropic Conductive Adhesive Developed Using Solder Powder for Electrical Micro-Bonding in the Emerging IT Industry

The importance of the IT industry is becoming more and more prominent as it gradually changes to a non-face-to-face society after the COVID-19, and the next-generation smart devices of 5G mobile communication, micro LEDs, and wearable devices are emerging as the leading of the IT industry. Along with the development of these devices, limitations and problems of the Anisotropic Conductive Adhesive Film (ACF) used as a connection material for Film on Film (FOF), Chip on Glass (COG), Chip on Film (COF), and Film on Glass (FOG) are emerging. [1-5]

电子证据在民事诉讼中的运用——以宁波移动微法院为视角

电子证据在民事诉讼中的运用——以宁波移动微法院为视角

Imaging Technologies for Biomedical Micro‐ and Nanoswimmers

AbstractThe last decade has seen the rapid development of untethered mobile micro‐ and nanorobots able to navigate liquids by means of external power sources or by harvesting chemicals from their surrounding media. These tiny devices hold great promise for applications in the biomedical field including targeted drug delivery, localized diagnostics, microsurgery, and cell stimulation. However, to translate small‐scale robots from the laboratory to the clinic, many challenges remain. A major obstacle is the lack of imaging technologies that will allow for precise tracking of the devices in vivo. Here, the current progress, challenges, and future possibilities in the monitoring and tracking of biomedical micro‐ and nanomachines using established as well as less conventional imaging technologies are reviewed.

Applied Research of Water and Fertilizer Integration Technology on Garlic

Garlic (Allium Sativum L.) is a favorite vegetable that is widely cultivated around the world. Traditional ditch irrigation and ground fertilization have many drawbacks, but the advantages of water and fertilizer integration are obvious. In order to study the effect of different irrigation and fertilizer treatments on the yield in a garlic field, the main garlic variety “er shui zao”in Dangyang city was used to be observed and compared the yield of garlic sprout and garlic bolt with different water and fertilizer integrated equipment and different fertilizer structures. Compared with the ditch irrigation treatment, irrigation water and fertilizer applications were reduced by 51.56% and 38.00% respectively both in the semi-fixed micro sprinkler irrigation treatment and mobile micro spray irrigation treatment throughout the growth cycle, but evident increase of the yields were found. The yields of garlic sprout and garlic bolt could reach 3845.56 kg/667m2 and 1010.45 kg/667m2 respectively in the treatment of semi-fixed micro-sprinkler irrigation combined with the leaf-specific water-soluble fertilizer. It could increase production and efficiency, and improve the water-fertilizer utilization ratio and mitigate the environmental contamination, achieving the production goal of saving costs and increasing profits.

Migration Oriented Energy Efficiency Evaluation Index for Cloud Computing Center

Cloud computing center energy consumption is enormous, it is important to enhance the energy efficiency of cloud computing industry. In cloud computing, computing tasks can migrate across data centers. At this point, the existing data center energy efficiency evaluation indicators can not reflect the actual energy efficiency of the computing center. Based on the existing energy efficiency evaluation index on the basis of calculation for multi center model is put forward for the migration of cloud computing center energy efficiency evaluation index of CDCeP, and based on this index, put forward by the mobile micro cloud computing center, chase new cloud physics of low cost and high efficiency of migrating Computing Center operation mode, effectively improve the cloud computing the center of the equivalent energy efficiency, reduce emissions.

Financial Inclusion through Mobile Micro Banking: Building a Prototype for Transaction Cost Efficiency in Microfinance Practice

The present paper briefly reviews and emphasizes numerous faceted costs fitting to transaction and administration brought about by financing techniques of a microfinance establishment. The paper likewise proposes a model that can utilize the digital device to diminish different expenses including social capital, observation and approvals. The paper proposes that this model can be an option road for financial inclusions and repayment achievement of lending establishments at the expense cost of transaction and administrative cost.

A Design and Teaching Practice of Micro Mobile Learning Assisting College English Teaching Mode base on WeChat Public Platform

With the advances in information technology, fragmentation mobile learning is becoming increasingly popular. WeChat public platform and mobile micro learning shows good match, which can satisfy the needs of college English autonomous learning. We build a mode by using WeChat public platform to assist college English teaching, then use a method of questionnaires and in-depth interviews to conduct an empirical study of this model. And the results show that the mobile micro-learning is a useful supplement to classroom teaching; finally, this paper proposes WeChat public platform can aid college English teaching. With the rapid development of network and information technology, the traditional education pattern has been greatly influenced by informationization tide. China Internet Network Information Center (CNNIC) in Beijing issued “the 35th China Internet network development state statistical report”, showing that up to December 2014, there are 557 million mobile Internet users in China, accounting for 85.8% of the total number of Internet users. The popularity of smart phones and the rapid development of mobile Internet, WeChat, Weibo and other learning technical support, provide a possibility for people to do mobile micro learning.

Typical presentation to evaluate NFC technology in electronic mobile payments

In recent years, electronic micro payments by cell phones have been possible. Some activities have been done in this field as well. Mobile near field communication (NFC) technology, which is a standard mobile method for connecting electronic devices at near distances, has grabbed a lot of attention in order to pay mobile micro payments and electronic payment services by financial institutions, payment service companies, SIM cards manufacturers and operators. The beneficiary organizations need to meet some requirements such as management preparation. This paper aims to detect different NFC technology uses and study and rank the main factors of success in implementation of this technology in organization by applying analytic hierarchy process. The humanitarian specialists and environmental and technological experts should be considered in order to use NFC technology in mobile payments. Among 81 sub-criteria, security and privacy are the most important factors for implementing NFC technology successfully.

Micro manipulation by a compliant piezoelectric micro gripper towards robotic micro assembly

This paper presents a new design of mobile micro manipulation system for robotic micro assembly where a compliant piezoelectric actuator-based micro gripper is designed for handling the miniature parts. The compensation of misalignment during robotic peg-in-hole assembly is achieved by this compliant micro gripper because the piezoelectric actuator has capability of producing the displacement in micron range and generates high force instantaneously. The throughput/speed analysis of mobile micro manipulation system is carried out for picking and placing the peg from one hole to next hole position. An analysis of piezoelectric actuator-based micro gripper has also been discussed where voltage is controlled through a proportional-derivative (PD) controller. By developing a prototype, it is demonstrated that compliant piezoelectric actuator-based micro gripper is capable of handling the peg-in-hole assembly task in a mobile micro manipulation system.

Commentary on the Efficiency of Selected Structural Designs of Low Head Micro Hydraulic Power Plants

This article compares, first of all, structural designs of low head micro hydraulic power plants using Kaplan turbines. The authors have chosen this turbine class because siphon turbine systems suck the water up over the dams, can operate at temperatures below 0°C and are associated with less capital costs than turbine systems of other types. Besides it, mobile micro power plants can be easily assembled in a modular way and be installed on floating platforms thus providing appeal to a growing market niche. The authors discuss the issue of identity of possible structural designs of siphon micro hydraulic power plants in terms of their efficiency and selection of optimal pressure heads. They have developed a criterion of comparison of efficiency of various designs of siphon micro hydraulic power plants and provide evidence of virtual identity of selected structural designs with identical parameters in terms of efficiency. This criterion allowed them to make estimates in search for an optimal solution in terms of gross head (vertical distance between the highest and lowest water surface) versus net head (effective head available for power generation which is gross head less all the losses in the water conductor system including penstocks), which can be useful for designers of micro hydraulic power plants.

Single Mobile Micro Droplet-Particle Pairs Spatially Captured by Macro Host Droplets on a Superhydrophobic Surface

In this preliminary study, we demonstrate how small single water droplets can be spatially captured on the surface of individual micron sized hydrophobic coated particles (C18) which adhere to the surface of a nonmobile larger host water droplet resting on a superhydrophobic surface. The formation of the larger droplet, particle adhesion to that droplet, and smaller droplet formation on the particle all take place spontaneously from condensation conditions. These micro droplet-particle pairs are confined to the surface (liquid-air interface) of the larger host droplet; however, they are free to engage with external forces to promote mobility. This response may find applications for particle pair transport on liquid surfaces. We also demonstrate that droplets can be captured or removed from the larger droplet surface via a self-propulsion mechanism.

Design and manufacturing of mobile micro manipulation system with a compliant piezoelectric actuator based micro gripper

This paper presents a new design of mobile micro manipulation system for robotic micro assembly where a compliant piezoelectric actuator based micro gripper is designed for handling the miniature parts and compensation of misalignment during peg-in-hole assembly is done because piezoelectric actuator has capability of producing the displacement in micron range and generates high force instantaneously. This adjusts the misalignment of peg during robotic micro assembly. The throughput/speed of mobile micro manipulation system is found for picking and placing the peg from one hole to next hole position. An analysis of piezoelectric actuator based micro gripper has been carried out where voltage is controlled through a proportional-derivative (PD) controller. By developing a prototype, it is demonstrated that compliant piezoelectric actuator based micro gripper is capable of handling the peg-in-hole assembly task in a mobile micro manipulation system.

Prospects for Building Mobile Micro Hydro Power Plants with Information Management Systems

Prospects for Building Mobile Micro Hydro Power Plants with Information Management Systems

178 空気圧駆動式イモムシ型管内走行マイクロロボットの試作

178 空気圧駆動式イモムシ型管内走行マイクロロボットの試作