检索结果-内蒙古大学图书馆

Diagnosis of dangerous waste management in Norte de Santander using sandbox-UFPS: overview for sustainability challenges environment and technology 7

Diagnosis of dangerous waste management in Norte de Santande...

引用

7th IMEKO TC19 Symposium on Environmental Instrumentation and Measurements, EnvIMEKO 2017

作者： Alarcón, Víctor Emmanuel Urbina Rodriguez, Andrea Carreño System Engineering Program Francisco de Paula Santander University Cúcuta N de S Colombia Environment Engineering Program Francisco de Paula Santander University Cúcuta N de S Colombia

ISBN: (纸本)9781510851221

The environment is one of the most important items in the world, therefore policies should be defined for the proper use of environmental resources and disposal of waste. In Colombia in 2005, the environmental policy for the management of dangerous wastes and wastes, and decree 4741, which together with other regulations are compiled in the single regulatory decree of the environmental sector 1076 of 2015, framed within the policies Public services for the management of solid waste and the integral management of RESPEL (dangerous waste). This research aims to diagnose in a general way the current state of the management of dangerous waste in the areas of jurisdiction of CORPONOR as environmental authority of the department of Norte de Santander, taking as sample CORPONOR territorial Cúcuta, defining the methodology of study in stages: planning , Documentary research, field research, elaboration and validation of the diagnostic report and of the information stored by the solid waste coordinator of the corporation, sent by generators and managers using formats [9] RH1, RUA, RESPEL Records, waste management and IDEAM applications [8], as well as management of agrochemicals and hydrocarbons, through the use of office tools and the academic platform for the deployment of web applications called Sandbox- UFPS, which allows to collect, store and process data, generating figures and statistics Of the total waste managed Two and their annual behavior. © 2018 IMEKO-International Measurement Federation Secretariat. All rights reserved.

关键词： Sustainable development

来源：评论

学校读者我要写书评

暂无评论

Improve the through-thickness electrical conductivity of cfrp laminate using flow-aligned carbon nanofiber Z-threads

Improve the through-thickness electrical conductivity of cfr...

引用

SAMPE Long Beach 2018 Conference and Exhibition

作者： Ranabhat, Bikash Hsiao, Kuang-Ting University of South Alabama Department of Mechanical Engineering Shelby Hall 150 Jaguar Drive MobileAL36608 United States System Engineering Program United States

ISBN: (纸本)9781934551271

Traditional Carbon Fiber Reinforced Plastics (CFRPs), carry high in-plane strength and electrical conductivity but exhibit intrinsic weaknesses in strength, toughness and conductivity in the through-thickness direction (i.e. z-direction). This paper presents a novel approach to align and thread Carbon Nanofibers (CNFs) through the porous medium (Carbon fiber fabric) using an interesting radial-flow alignment method and manufacture a novel CNFs z-threaded CFRP prepreg. This new radial-flow alignment approach is unique and has been found highly effective to z-thread the array of carbon fibers (diameter ~ 7 microns) with numerous long CNFs (length ~ 50-200 microns) under a Scanning Electronic Microscope (SEM) analysis. Experimental tests performed on a cured laminate sample prepared by this novel technique with 1 wt% aligned CNF concentration showed a significant improvement on the z-directional electrical conductivity for direct current (DC). The 1 wt% CNFs z-threaded CFRP was found about 100 times as conductive as the control CFRP;whereas the unaligned 1 wt% CNFs modified CFRP was only about 16 times as conductive as the control sample. © 2017 by Bikash Ranabhat and Kuang-Ting Hsiao. Published by Society for the Advancement of Material and Process engineering with permission.

关键词： Carbon nanofibers

来源：评论

学校读者我要写书评

暂无评论

Coevolution of Myoelectric Hand Control under the Tactile Interaction among Fingers and Objects

引用

Cyborg and Bionic systems 2022年第1期2022卷 285-302页

作者： Yuki Kuroda Yusuke Yamanoi Shunta Togo Yinlai Jiang Hiroshi Yokoi Joint Doctoral Program for Sustainability Research Graduate School of Informatics and Engineering The University of Electro-CommunicationsTokyoJapan Department of Mechan ical and Intelligent System Engineering Graduate School of Informatics and Engineering The University of Electro Communications TokyoJapan Center for Neuroscience and Biomedical Engineering The University of Electro Communications TokyoJapan Bejing Innovation Center for Inelligent Robots and Systems BeijingChina

The usability of a prosthetic hand difers significantly from that of a real ***,the complexity of manipulation increases as the number of degrees of freedom to be controlled increases,making manipulation with biological signals extremely *** overcome this problem,users need to select a grasping posture that is adaptive to the object and a stable grasping method that prevents the object from *** previous studies,these have been left to the operating skills of the user,which is extremely difficult to *** this study,we demonstrate how stable and adaptive grasping can be achieved according to the object regardless of the user's operation *** required grasping technique is achieved by determining the correlation bet ween the motor output and each sensor through the interaction between the prosthetic hand and the surrounding stimuli,such as myoelectricity,sense of touch,and grasping *** agents of the 16 DOF robot hand were trained with the myoelectric signals of six participants,including one child with a congenital forearm ***,each agent could open and close the hand in response to the myoeletric stimuli and could accomplish the object pickup *** the tasks,the agents successfully identified grasping patterns suitable for practical and stable positioning of the *** addition,the agents were able to pick up the object in a similar posture regardless of the partiipant,suggesting that the hand was optimized by evolutionary computation to a posture that prevents the object from being dropped.

关键词： robot Objects overcome

来源：评论

学校读者我要写书评

暂无评论

Anatomic prosthesis modelling based on descriptors by Cubic Bézier Curves 45

Anatomic prosthesis modelling based on descriptors by Cubic ...

引用

45th International Conference on Computers and Industrial engineering, CIE 2015

作者： Rudek, M. Gumiel, Y.B. Canciglieri, O. Bichinho, G.L. Da Silveira, M. Production and System Engineering Graduate Program - PPGEPS Brazil Graduate Program in Health Technology - PPGTS Pontifical Catholic University of Parana Brazil Luxembourg Institute of Science and Technology LIST Luxembourg

This paper presents a method based on image analysis to build models of the skull prosthesis as a premanufacturing process. The method is based on Cubic Bezier Curves as descriptors of the skull bone curvature. The method performs a symbolic representation of shape in order to define the geometric parameters to fit an arc on each Computed Tomography slice. The Bezier descriptors can be used as a template for the retrieval of similar images from medical databases whose parameters match the sampled image. The similarity is measured according to the best fitness values through ABC (Artificial Bee Colony) optimization algorithm. The slices found by similarity are retrieved from different skull images in order to build the 3D model. The 3D printing parameters can be based on images extracted from different medical images to mold a customized piece. A case study shows that the proposed method is a promising technique for 3D modelling.

关键词： Prosthetics

来源：评论

学校读者我要写书评

暂无评论

Optimal solutions for the venezuelan unit commitment hydrothermal system

Optimal solutions for the venezuelan unit commitment hydroth...

引用

IEEE/PES Transmission and Distribution Conference and Exposition Latin America

作者： Piemonti, Carlos Bermudez, Juan Khodr, H. M. Alvarez, Manuel Power System Specialization Program Universidad Simón Bolívar Venezuela Department of Electrical Engineering Universidad Simón Bolívar Caracas Venezuela

ISBN: (纸本)9781424402878

This work is about different optimal solutions for the unit commitment problem in the Venezuelan hydrothermal power system, disregarding the transmission system. The centralized cost-based maximum net social benefit solution, the oligopoly solution and the unregulated monopoly solution are formulated and analyzed. The oligopoly is studied via Nash-Cournot equilibrium, obtained iteratively considering both price-maker and price-taker firms. The price-demand curves are created using a price-demand elasticity parameter. The hydro plants can be of the run-of-river type or can have a regulation period, like in the case of Guri. In latter case the future profit is represented by a fixed volume of water to be turbined in the day ahead. Since integer variable are necessary to simulate the shut-down, start-up process a mixed integer commercial programming application is employed.

关键词： unit commitment electrical market optimization non-linear mixed-integer programming

来源：评论

学校读者我要写书评

暂无评论

IoT-Based Smart Meter with Energy Theft Detection 2

IoT-Based Smart Meter with Energy Theft Detection

引用

2nd International Conference on Smart Cities 4.0, Smart Cities 4.0 2023

作者： Muhammad, M. Ahmed, A. Zeyad, O. Amr, E. Ahmed, M. Abdelrahman, H. Aboelela, Magdy Cairo University Faculty Of Engineering Credit Hours System Eee Program Giza Egypt Cairo University Faculty Of Engineering Electrical Power Dept. Giza Egypt

ISBN: (纸本)9781665474306

The Internet of Things (IoT) has revolutionized the way we interact with our environment, and the smart meter is one of the most important applications of loT. This paper presents an loT-based smart meter designed to measure energy consumption accurately and detect energy theft in real-time. The system is based on the ATmega328p and uses the ESP8266 Wi-Fi module and SIM800 GSM module to establish wireless connectivity and loT functionality. The smart meter employs AC current and voltage sensors to measure true RMS of power and energy consumption. The system is designed to provide real-time energy consumption data to the utility company, enabling them to manage the power grid more efficiently. Additionally, the system can detect energy theft by comparing the energy consumption data with the expected energy consumption for a given period. The system can also send alerts to the utility company and the end-user in case of any suspicious activity. The proposed loT-based smart meter can help reduce energy wastage and improve the overall efficiency of the power grid. © 2023 IEEE.

关键词： Smart meters

来源：评论

学校读者我要写书评

暂无评论

A new method of terrain self-adaptive matching algorithm for autonomous underwater vehicle 4

A new method of terrain self-adaptive matching algorithm for...

引用

2019 4th International Conference on Intelligent Computing and Signal Processing, ICSP 2019

作者： Lu, Xiong Jian, Shen Xiaowen, Bi Department of Radar System Ordnance NCO Academy of Army Engineering University Wuhan430075 China Post-doctoral Program on Control Science and Engineering Naval University of Engineering Wuhan430033 China

As different underwater terrain features will affect the accuracy of unscented Kalman filter terrain matching algorithm, a new terrain self-adaptive matching method is proposed which adjusts sigma point distribution by terrain features. The connection between sigma point distribution distance and three basic terrain features were analysed. Positioning error range were calculated using navigation positioning errors and underwater digital map. Terrain elevation standard deviation was used to characterize the information quantity of decision region. Scaling parameter was adjusted using linear mapping method and sigma point distribution distance was determined by terrain features. The simulation results proved better terrain adaptability and positioning precision of improved self-adaptive matching algorithm. © 2019 IOP Publishing Ltd. All rights reserved.

关键词： Autonomous underwater vehicles

来源：评论

学校读者我要写书评

暂无评论

Generation of the anti-Twist crowned helical gear by modifying the gear rotation angle in the hobbing process 2nd

Generation of the anti-Twist crowned helical gear by modifyi...

引用

2nd International Conference on Machining, Materials and Mechanical Technologies, IC3MT 2016

作者： Hsu, Ruei-Hung Wu, Yu-Ren Chen, Shih-Sheng Bachelor's Program in Precision System Design Feng Chia University Taiwan Department of Mechanical Engineering National Central University Taiwan

ISBN: (纸本)9783035711011

In the gear-hobbing process, the work gear tooth flank is usually longitudinally crowned by varying the center distance between the hob and the work gear. Without crossed angle compensation, however, this center distance variation produces a twisted tooth flank on the work gear. This paper therefore proposes a methodology to reduce this tooth flank twist and achieve anti-Twist in longitudinal crowning by modifying the gear rotation angle in the hobbing process which is practiced using a CNC hobbing machine with three synchronous axes. © 2017 Trans Tech Publications, Switzerland.

关键词： Helical gears

来源：评论

学校读者我要写书评

暂无评论

Modeling and control of heterogeneous field robots under partial observation

引用

INFORMATION SCIENCES 2021年 580卷 419-435页

作者： Ju, Chanyoung Son, Hyoung, II [a]Department of Convergence Biosystems Engineering Chonnam National University Yongbong-ro 77 Gwangju 61186 Republic of Korea [b]Interdisciplinary Program in IT-Bio Convergence System Chonnam National University Yongbong-ro 77 Gwangju 61186 Republic of Korea

The control of large-scale dynamic systems, such as field robots, requires a more modular and scalable approach than traditional control theory. Recently, we designed modular supervisory controllers for field robots in agricultural applications based on a hybrid system that combines continuous-time and discrete-event systems. We verified that the developed hybrid system could control field robots and observe all the events while meeting the behavioral specifications. In contrast, all possible events cannot be monitored by a supervisor in a real-field robot system because of the presence of sensors, noise, disturbances, and failure. Therefore, in this study, we expanded the modular supervisor presented in previous studies by considering partial observations. Specifically, we proposed a process for designing an appropriate modular supervisor by considering the observability. The experimental results demonstrated that only observable events could cause state changes, verified by dynamic simulations representing a natural field environment. The effects of the proposed hybrid system-based modeling and control methodology are discussed in light of our systematic results. (c) 2021 Elsevier Inc. All rights reserved.

关键词： Heterogeneous field robots Supervisory control Hybrid dynamical system Discrete event system Partial observation

来源：评论

学校读者我要写书评

暂无评论

Analysis of the Reduction of Vibration and Chatter Effect in Boring Process Due to the Addition of Spring Radial Vibration Damper (SRVD) on the Workpiece 5th

Analysis of the Reduction of Vibration and Chatter Effect in...

引用

5th International Conference on Mechanical engineering, ICOME 2021

作者： Hendrowati, Wiwiek Iswanda, Mumtaza Rizky Laboratory of Vibration Engineering and Automotive System Department of Mechanical Engineering Institut Teknologi Sepuluh Nopember Surabaya Indonesia Graduate Program of Mechanical Engineering Institut Teknologi Sepuluh Nopember Surabaya Indonesia

ISBN: (纸本)9789811908668

Modern machining processes have been rapidly evolving into much more sophisticated forms. However, even with such sophistication in hand, the effect of chatter remains to be a significant problem. To date, engineers keep referring to the traditional chatter stability lobe to address the problem of limiting themselves in creativity to achieve high efficiency. The research aims to observe the vibration reduction along the boring process achieved by adding one type of DVA called Spring Radial Vibration Damper (SRVD) onto the workpiece. The workpiece is a cylindrical rod with the ratio of overhang length to a diameter at 6:1. The experiment conducted in different depths of cut (DoC) varies at 0.25 mm, 0.2 mm, and 0.15 mm. The experiment results show a comparison between the main system and without the SRVD in a graphical representation of the dynamic response, percentage of RMS reduction in each parameter, and surface finish of each parameter. This paper concludes that SRVD can be beneficial for the cutting process within the unstable area of the chatter stability lobe. It will worsen the cutting process if the parameters still lie within the stable area. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Vibration analysis

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：