Shape operator

This paper presents a study on the dynamic response of the micro-beams with the crab shape and cut-out holes on the whole operating faces of the beam to create the micro-perforated beam by using FEM simulation software. The obtained results show that the size and shape form of the cut-out holes affect the mechanical responses of the beam on which the holes distribute.

14p dianmotminh02 03-05-2024 5 2   Download

The main focus of this paper is on the product stewardship and pollution prevention. RV suggested that the important resource for the competitive advantage is precise inter-enterprise formation through long term partnership of organization. Resource based view suggested that there are three important strategic competences sustainable development, product stewardship and pollution prevention. All the competencies have diverse environmental forces, importantly shape upon dissimilar resources, and having competitive advantages of different resources.

8p longtimenosee09 08-04-2024 1 0   Download

Ebook "Localized surface plasmon resonance based nanobiosensors" introduces the fundamentals and applications of the localized surface plasmon resonance (LSPR) property of noble metallic nanoparticles, with an emphasis on the biosensing applications of plasmonic nanoparticles, especially in living cell imaging and photothermal therapy.

123p nhanphanguyet 28-01-2024 5 2   Download

Gantry cranes are widely used in various fields such as industry and transportation. However, the crane generates unwanted payload vibration during operation, causing operation and safety at work difficulties. Especially with double-pendulum cranes, this is even more serious. This paper proposed the ADRC and Input Shaping combination controller to control trolley position and suppress payload vibration.

7p vibranson 30-11-2023 9 4   Download

Ebook "Feature extraction in computer vision and image processing" includes content: Introductionl images, sampling and frequency domain processing; basic image processing operations, low- level feature extraction (including edge detection); feature extraction by shape matching,... and other contents.

360p haojiubujain07 20-09-2023 9 4   Download

Lecture Network + Guide to Networks (6th Edition) - Chapter 15: Network Management, objectives of this chapter: Explain basic concepts related to network management; Discuss the importance of documentation, baseline measurements, policies, and regulations in assessing and maintaining a network’s health; Manage a network’s performance using SNMPbased network management software, system and event logs, and traffic-shaping techniques.

44p chankora08 04-07-2023 7 4   Download

Continued part 1, part 2 of ebook "Culinary taste: Consumer behaviour in the international restaurant sector" provide readers with content about: the shock of the new - a sociology of nouvelle cuisine; contemporary lifestyles - the case of wine; shaping culinary taste - the influence of commercial operators;... Please refer to part 2 of the ebook for details!

110p duonghanthienbang 05-10-2022 12 5   Download

Part 1 of ebook "Introduction to management in the hospitality industry" provide readers with content about: perspectives on careers in hospitality; food service; lodging; hotel and lodging operations; forces shaping the hotel business; competition in the lodging business;... Please refer to part 1 of the ebook for details!

452p tieuvulinhhoa 22-09-2022 11 4   Download

The paper proposed an antenna array consisting of four bow-shaped dipole elements. The antenna array operates at a center frequency of 5 GHz with a bandwidth of 332 MHz. By utilizing the reflector and the directors, the antenna obtains a high gain of 10.6 dBi at 5 GHz and over 10.3 dBi across the operating bandwidth.

7p viarrinera 26-08-2022 6 4   Download

Postoperative delirium is common in older adults, especially in those patients undergoing spine surgery, in whom it is estimated to occur in > 30% of patients. Although previously thought to be transient, it is now recognized that delirium is associated with both short- and long-term complications.

10p vizhangzhidong 29-12-2021 10 0   Download

The irregular anatomical shape and complex structures of irregular bones make it more difficult to repair and reconstruct bone defects in irregular bones than in the long bones of the extremities. Three-dimensional (3D) printing technology can help to overcome the technical limitations of irregular bone repair by generating simulations that enable structural integration of the lesion area and bone structure of the donor site in all directions and at multiple angles.

9p vimackenziebezos 30-11-2021 10 1   Download

This paper presents a design, calculation, simulation and fabrication of micro gripper driven by the electrothermal V-shaped actuator. The working principle of the V-shaped actuator bases on the thermal expansion of a thin beam when applying a voltage. The advantages of this design are large displacement amplification factor, large driving force, low voltage, simple configuration and control. The maximum displacement of each jaw can be up to 40µm at the calculated voltage of 17.35V and low operating frequency

8p spiritedaway36 28-11-2021 7 1   Download

The 2D symmetric model of EPR with the electromagnetic force calculated was imported into Simplorer software to simulate the dynamic response of the EPR based on the influence of plug shape. The shape of plug in the EPR was changed through the dimension parameters denoted by dimension (h) and slope angle (α). The simulation results show that the electromagnetic force and dynamic response of the EPR can be optimized when h and α are selected at 3mm and 480, respectively.

8p spiritedaway36 28-11-2021 10 1   Download

Maize (Zea mays L) is one of the most versatile emerging cereal crops having wider adaptability under varied agro-climatic conditions. Pre and post harvesting operations are the most labour intensive operations that are presently done manually in India and need to be mechanized. The physical properties of seeds play an important role for designing seed metering device.

8p gaocaolon9 22-12-2020 18 2   Download

Early life social environment may influence breast cancer through shaping risk factors operating in early life, adolescence and adulthood, or may be associated with breast cancer risk independent of known risk factors. We investigated the associations between early life socioeconomic status (SES) and mammographic density, a strong risk factor for breast cancer, and the extent to which these associations were independent of risk factors across the lifecourse.

10p vimale2711 21-08-2020 24 1   Download

Since the first observation of the fascinating absorption property, metamaterials have been become a scientific spotlight. A distinctive interest has been given to metamaterial absorber (MA) with a broad operating band, which are more useful for future applications. In this report, we studied numerically and experimentally the electromagnetic properties of perfect MAs using ring-shaped structures at microwave frequencies. By creating a magnetic resonance, the ring structure confines electromagnetic energy at the first- and third-order resonances.

12p nguyenxuankha_bevandan 14-08-2020 13 1   Download

This study presents the topological optimization of a Yamaha DT 125 crankshaft. A shape generation was carried out using Autodesk Inventor software, in addition to a finite element analysis of previous and subsequent elements, in which the loading conditions are defined, restrictions and meshing. analyzing the mechanical behavior of this element under maximum operating conditions. Obtaining a Von Misses equivalent stress reduction of 10.74 %, weight of 5.25 % and a minimum safety factor increase of 10.73 %.

8p cleopatrahuynh 01-06-2020 19 1   Download

Laser Engineered Net Shaping (LENS™) was used to produce a compositionally graded Ti-xMo (0≤x≤12 wt %) specimen and nine Ti-15Mo (fixed composition) specimens at different energy densities to understand the composition– processing–microstructure relationships operating using additive manufacturing.

8p vijiraiya2711 27-05-2020 7 0   Download

The result showed that the influence of work piece material hardness on surface finish is significant for cutting speed and feed in CNC end milling operation. It is also observed that the surface roughness prediction accuracy of Adaptive neuro fuzzy inference system using triangular membership function is better than Gaussian, bell shape membership function and regression analysis. Surface roughness prediction accuracy with material hardness as input parameter is 97.61%.

8p toritori 11-05-2020 16 2   Download

Financial liquidity is the foundation for building a strong enterprise. Every small or large enterprise, regardless of the industry, needs to have financial liquidity to grow. Its management is complicated as it is related to current assets, short-term liabilities and profitability. The existing relationship between profitability and liquidity makes it very difficult to choose the right liquidity management strategy. The purpose of the article is to analyze the strategy of managing liquidity in state-owned enterprises operating in the energy sector.

4p partimesinhvien 13-05-2020 18 0   Download