Min-Chie Chiu

• PhD
• Professor at CHUNG CHOU UNIVERSITY OF SCIENCE AND TECHNOLOGY,TAIWAN

Global warming and climate change have become an important issue that the world is focusing on due to its apparent impact on lives and economies around the world. Efforts have been put into developing more environmentally friendly vehicles ranging from hybrid to fully electrical vehicles. In addition, research efforts have been made to develop and...

Establishing an energy harvesting device to supply sustainable energy to deep sea sensors is a challenging task due to the complex subsea marine phenomenon. To overcome this, we propose a two-magnet KMC energy harvester hanging on the cabin of the ship with a spherical bearing. The magnets connected with springs move vertically up and down when the...

To address the issue of hearing health problems caused by the broadband noise emitted from space-constrained marine diesel engines on a ship, an efficient silencer equipped at the engine's venting outlet is necessary. In consideration of the space-constrained situation that often occurs in ships, a reverse silencer with multiple chambers is introdu...

Due to the threat of greenhouse gas emissions on Earth's sustainability, low carbon with green energy is crucial. Ocean hydropower is inexhaustible, with wave energy being a feasible green energy source. Previous low-frequency domain wave energy capture mainly used linear piston-type electromagnetic induction generators. However, this method produc...

It is imperative to explore alternative, preferably renewable energy sources to diminish our reliance on coal and oil, thereby mitigating the adverse impacts of greenhouse gases. For this, an approach was proposed to generate electrical power through energy harvesting from a ship’s buoy riding a lake’s wave. Specifically, an electrical power genera...

It is crucial to explore new green energy sources to alleviate the earth’s energy depletion and the impact of air pollution and greenhouse effects. Although wafer manufacturing is increasing worldwide, the implementation of carbon footprint policies necessitates a shift toward green electricity. To expand the scale of wafer manufacturing, it is ess...

This study aims to not only design a vibration energy harvester integrated in a three-dimensional (3D) multi-particle system but also investigate the longitudinal and lateral body sway and the effect of front and back wheel interlocking caused by the eccentric loading of the vehicle. Using multidimensional vehicle suspension system vibration modes...

It is of utmost importance to prioritize the exploration of alternative green energy sources, reducing our dependence on coal and oil, in order to mitigate the detrimental effects of greenhouse gases. This paper introduces an innovative energy harvester that utilizes a single magnet driven by a buoy attached to a pole within a lake. We delve into t...

Muffler with circular section and inner symmetric acoustical elements has been habitually used in industry. In order to improve the acoustical performance, an advanced eccentric muffler having ellipse cross-section, multiple chambers, and multi-segment perforated/non-perforated tubes is presented. Concerning about high order wave effect to the muff...

In order to enhance the acoustical performance of gun mufflers, a multi-chamber muffler internally inserting with expansion cones and perforated tubes ducts is presented. Because of the complicated geometry of gun muffler, traditional analytic method used in predicting a muffler’s acoustical performance is difficult; therefore, a finite element met...

In this work, an optimal suspension system is proposed to reduce the oscillations/vibrations of the car's body and harvest some of the induced vibration energy. The usual shock absorbers are replaced with energy harvesters capable of not only absorbing vibrations for ride comfort but also regenerating electrical energy for onboard use. To investiga...

Because of high pressure impulse noise emitted from the outlet of pneumatic equipment, an appropriate noise abatement device installed at the top of a venting outlet is compulsory. However, a given known noise reduction using a bronze-made sintered porous plug at the venting outlet is insufficient. An exploration of advanced noise reducing device i...

Noise abatement by using efficient mufflers is compulsory, as venting noise, a type of huge noise in the industry, has a serious impact on human hearing. In order to reduce the noise abatement cost, the idea of using a muffler to suppress two kinds of venting noise sources arises. In this study, a muffler internally inserted with a screwed plate wa...

Because venting noise emitted from high pressure valve often occurred in industry and is huge, the noise abatement of the venting noise to protect human’s hearing health is necessary. In order to depress the high speed noise, a muffler internally equipped with spiral perforated tube is presented. To mitigate this noise, a dissipative muffler with p...

This paper aims to eliminate the pneumatic noise using a muffler hybridized with a metal sintered bronzed porous material, a spiral tube, and expansion cones. In this paper three kinds of mufflers (Muffler A: with part AA (a bronze-made sintered porous inlet); Muffler B: with part BB (a casing with a spiral tube and expansion cones); and Muffler C:...

Because the exploration noise emitted from a gun shooting is huge, it will be harmful for the user’s hearing health, so the noise abatement of the gun’s shooting noise becomes essential. In order to efficiently depress the gun ‘s shooting noise, a multi-chamber muffler internally inserted with three kinds of acoustical reactive elements (orifice, p...

The need for renewable energy sources and harvesting devices has increased over the years for environmental and economical reasons. Cars, for example, have gone through important transformations over the past decade, which led to the inception of the hybrid type. The idea is to harness some of the dissipated energy and reuse it to operate a vehicle...

A hybrid plant and aquarium system can save water via water circulation and filtering. In order to conveniently seed and harvest and breed in the aquarium, the system is a module. The seeding/harvesting and breeding can be easily separated or combined. A filtering net is installed at the bottom of the container. The system can serve as a factory fo...

In order to overcome the drawback of the accuracy for the Plane wave theory in the muffler’s acoustical calculation in the region of higher frequencies, we use a theoretical analysis of eigen function in conjunction with a four-pole system matrix to evaluate the TL of a circular straight muffler with bias inlet/outlet duct. With this method, the ac...

Monitoring subsea environment requires sophisticated tools such as Autonomous or Remote Underwater Vehicles, submersible sensors, and very skilled manpower. Power is vital to the success of subsea missions especially in deep-waters where visibility is poor and the travel time from the surface to the seabed and vice versa takes a relatively long tim...

As the need for the daily household appliances and home security increases, the application of interaction technologies and electrical appliances used in smart home system has been widely developed. Considering home security, life convenience, and construction cost, a smart home system conjugated with single-chip controlling unit is presented in th...

Complex product design often relies on design experience and numerous repeated equipment operations. In order to speed up the design process on a complicated product, a methodology of knowledge extraction (KE) is proposed. Moreover, a case study in designing a shaped boss using the KE technique in conjunction with a Back-Propagation Network (BPN) m...

Plane wave theory has been used in predicting the acoustical performance of one-chamber straight mufflers. But, the acoustical effect of the mufflers at higher frequencies that are beyond the threshold of the cut-off frequency has been neglected. In addition, there is a need for a more compact muffler design for use inside a space-constrained worki...

There has been, of recently, much research on mufflers lined with sound absorbing material. In dealing with high frequency noise emitted from venting systems, a sound absorbing material inside a tube covered with a perforated plate has been used. However, the acoustical performance of mufflers equipped with one-layer of sound absorbing material has...

Rectangular mufflers internally hybridized with splitters have been extensively applied in industrial noise abatement. However, there has been a palpable lack of academic work directed toward space-constrained mufflers conjugated with multi-channel splitters that disperse venting fluid and reduce secondary noise. That being so, an analysis of the S...

A traditional scarecrow does not scare birds; subsequently, crops will be demolished by birds during the growing season. Moreover, because farms are often invaded and crops stolen during harvest, the farmer and his dogs are forced to stay and protect the crops. However, this is not efficient for a large farm. Therefore, a remote crop monitoring sec...

A reactive muffler has been widely used in depressing venting noise emitted from industrial plants. As can be seen in a previous study, a perforated/ non-perforated tube inserted inside a chamber will produce a huge loss of sound transmission loss. In order to assess the influence of an inserted perforated/ non-perforated tube into a muffler, a sim...

Because of the greenhouse effect, global climate changes will adversely influence the water supply in the future. As can be seen in traditional reservoirs, the crisis will be exacerbated due to the reservoir‘s sedimentation. From a global view, 70 % of freshwater resources are used for agricultural purposes. Thus, water management and infrastructur...

Because of the greenhouse effect, global climate considerably changes and will worsen the water supply situations in future. Also, as can be seen in traditional reservoir, the crisis of water lacking will exacerbate due to the reservoir sedimentation. In order to widen the storage of water resources, a design of portable rain-collecting system used...

As both carbon monoxide (CO) and carbon dioxide (CO2) exit during a fire, they are obvious indicators for the need to be alert to the possibility of fire. Another problem concerning poisoning by carbon monoxide (CO) is asphyxiation that occurs in houses during winter. The development of an automatic gas poisoning prevention system in conjunction wi...

At present, there is a trend to design a hard disk with a larger capacity, a faster revolution speed, and a precise mechanism. Therefore, the influence of data transmission with respect to vibration is obvious. To reduce interference of the vibrational impact on the data transmission efficiency, vibrational abatement on the hard disk using the damp...

Enormous effort has been applied to research on mufflers hybridized with a single perforated plug tube; nonetheless, mufflers conjugated with multiple parallel perforated plug tubes that disperse venting fluid and reduce secondary noise have been overlooked. To this end, an analysis of the sound transmission loss of two-chamber mufflers with multip...

The purpose of this paper is to develop an automated acoustic inspection platform for an earpiece manufacturing. An 8-pin detector has been designed to automatically locate a coil which is inside an earpiece drive. This 8-pin detector is composed of eight probes. Voltage data will be obtained by a A/D converter via scanning and reading the earpiece...

This study introduces an automatic classification system that uses an electroacoustic analyzer to measure the frequency response of earphones. This system was designed using the Pro/E package and improved via testing. The system controller used in the study is the Microchip PIC18F4520 microcontroller. The controller is connected to an electroacoust...

There has been wide-spread use of plane wave theory in muffler design in industry. However, This has led to an underestimation of acoustical performances at higher frequencies. To overcome the above drawback, the finite element and boundary element methods have been developed. Nevertheless, the time consumed in calculating the noise level is unacce...

Subsea engineering has become a thriving field that received a lot of attention from researchers and educators in recent years. The reason for the attention could be economical since many oil and gas fields are offshores, ecological due to pollution, or geological due to earthquakes and Tsunamis. The subsea environment is difficult to conquer and r...

The paper is an exploration of the optimal design parameters of a space-constrained electromagnetic vibration-based generator. An electromagnetic energy harvester is composed of a coiled polyoxymethylen circular shell, a cylindrical NdFeB magnet, and a pair of helical springs. The magnet is vertically confined between the helical springs that serve...

Research on plenums partitioned with multiple baffles in the industrial field has been exhaustive. Most researchers have explored noise reduction effects based on the transfer matrix method and the boundary element method. However, maximum noise reduction of a plenum within a constrained space, which frequently occurs in engineering problems, has b...

Mufflers hybridized with a single dissipative tube have been extensively researched; however, there has been a palpable lack of work directed toward mufflers conjugated with multiple parallel dissipative tubes that disperse venting fluid and reduce secondary noise. That being so, an analysis of the Sound Transmission Loss (STL) of two-chamber muffl...

Steam is an essential medium used in the industrial process. To ensure steam quality, small and middle scale boilers are often adopted. However, because a higher steam pressure (compared to the necessary steam pressure) is generated, the boiler’s steam pressure will be reduced via a pressure regulator before the steam is directed through the proces...

A reciprocating compressor is commonly used in industry. However, because it is extremely noisy and harmful to the ears, a noise control mechanism is necessary. Eight kinds of noise control strategies used with the reciprocating compressor are explored, and COMSOL, a numerical analysis software, is adopted for acoustical analysis in the paper. The...

Ventilation equipment will inevitably deteriorate causing overheating problems that result in a machine breaking down. Therefore, to insure the safety of the machine, an auto- matic thermal control and online monitoring system is compulsory. In addition, to reduce manpower, a remote temperature monitoring/control system is proposed. Moreover, in or...

There has been considerable research done on multi-chamber mufflers used in the elimination of industrial venting noise. However, most research has been restricted to lower frequencies using the plane wave theory. This has led to underestimating acoustical performances at higher frequencies. Additionally, because of the space-constrained problem in...

Because of the high sensitivity of data transmission when impacted externally, vibration control on a hard disk becomes crucial. In order to investigate the influence of data transmission with respect to the tilted angle of a solid state disk (SSD) and the hardness of the damping material, a series of experimental tests using a base-excitation vibr...

To obtain an optimal cutting process in the Computer Numerical Control (CNC), the multiple-quality production optimization decision is proposed by utilizing the tool nose run-off, the feed rate and the cutting depth as the control parameters. Four control factors that affect cutting quality will be examined: surface roughness, tool wear, material r...

A substantial quantity of research on muffler design has been restricted to a low frequency range using the plane wave theory. Based on this theory, which is a one-dimensional wave, no higher order wave has been considered. This has resulted in underestimating acoustical performances at higher frequencies when doing muffler analysis via the plane w...

The application of rectangular mufflers internally hybridized with splitters is a leading technology in industrial noise abatement, today. However, there has been a palpable lack of academic work in exploring the acoustical performance of spaceconstrained mufflers with splitters. Therefore, an assessment of the Sound Transmission Loss (STL) of rect...

The focal point of this paper is to uncover, by analyzing the higher order wave effect, an improved mechanism for space-constrained rectangular plenums using a simplified objective function in conjunction with a genetic (GA). Three kinds of rectangular mufflers hybridized with extended tubes will be assessed: Plenum A: A two-chamber plenum equipped...

Presently, there is a trend to design larger capacity hard disks that have a faster revolving speed and a precise mechanism. However, because of external vibrations, these are highly sensitive to data transmission. Therefore, vibration control on hard disks is crucially important. In this paper, a traditional hard disk is placed on a vibration test...

High noise levels can be harmful to workers and lead to psychological and physiological ailments. A broadband noise hybridized with multiple pure tones has a high peak value and is detrimental to human hearing in an enclosed machine room. To efficiently reduce the reverberant part of the peak noise level, interest in shape optimization of a Helmhol...

In this paper, a rectangular plenum internally equipped with two crossed baffles within a fixed space is assessed. To simplify the optimization process, a simplified objective function (OBJ) is constructed using the finite element model (FEM) in conjunction with the polynomial neural network model (ANNM). To assess an optimal plenum, the best OBJ w...

To increase manufacturing productivity, industrial automation is required. Additionally, in order to monitor the manufacturing process, a remote online monitoring and control system becomes compulsory. A conventional remote monitoring system often uses a wire connection for communication within a control center; however, it is time-consuming and in...

This paper introduces a small steam expander linked to a moderate/small industrial steam boiler to form a small scale cogeneration system for the purpose of energy conservation and carbon-emission reduction. Here, a traditional regulator will be replaced by the steam expander. In order to effectively extract the high pressure steam’s unused energy...

The goal of this paper is to develop and experimentally test portable vibration-based electromagnetic energy harvesters which are fit for extracting low frequency kinetic energy. Based on a previous study on fixed vibration-based electromagnetic energy harvesters, three kinds of portable energy harvesters (prototype I, prototype II, and prototype I...

High noise levels in a multi-noise plant can be harmful to workers and will not only lead to psychological but also to physiological ailments. Consequently, noise control of industrial equipment becomes vital for workers. The study focuses on shape optimization of space-constrained close-fitting acoustic hoods. In this paper, a sound insertion loss...

Because of the space constraints problem in practical engineering work, there is a growing need to optimize the acoustical performance of a sound-proofing device within a fixed space. The optimal mechanism used in adjusting either the plenum's chamber or an internal sound absorber has been ignored. In order to maximize the acoustical performance of...

Because of the inevitable depletion of oil and pollution caused by the use of fossil fuels, an alternate energy source that is clean and sustainable is necessary. Wind energy is that source. It is clean, safe, and environmentally friendly. In this paper, an axial-fan-type wind generator system used to generate electricity to recharge a battery (DC...

Presently, there existed in industrial plants broadband noise hybridized with pure tones. In order to overcome a pure tone noise with a high peak value that is harmful to human hearing, a traditional reactive muffler has been used. However, the traditional method for designing a reactive muffler has proven to be time-consuming and insufficient. Hel...

Noise control is essential in an enclosed machine room where high levels of reverberant and direct sound are encountered. Because pure tone noise is harmful to workers and may lead to psychological and physiological ailments, a traditional Helmholtz resonator that reduces pure tone noise has been commonly employed. However, the conventional Helmhol...

This is a study of the measurement system capability and analysis of a gauge block comparator aimed at improving the quality requirements of calibration instruments that ensure system stability. The total variance of measuring instruments includes the following: different measuring environments, precision of measuring equipment, the experience of t...

There has been much research on partitioned plenums in the industrial field. However, maximum noise reduction of a plenum within a constrained space, which frequently occurs in engineering problems, has been neglected. Therefore, the optimum design of multi-chamber plenums becomes essential. In this paper, five-chamber plenums intersected by four b...

The main purpose of this paper is to create an efficient ground-sweeping robot equipped with map-establishing and path-planning functions. Two ground-sweeping robots are connected with a master pc via a Blue-tooth protocol. The position of the ground-sweeping robot will be sent back to the master pc allowing the master pc to control the robots duri...

Computer Aided Engineering (CAE) software is a vital analytical tool which is often adopted for product design. Engineers can obtain related design information for stress, strain, displacement, fatigue, and longevity of products via a CAE simulation. In order to improve product reliability, analysis of a products structure using CAE is compulsory....

For the purpose of wrist rehabilitation, a new type of SMA (Shape memory alloy) wrist rehabilitation device is developed. The palm will be actuated/lifted by the SMA’s driving force when the shape memory alloy is heated up. Four wires of the shape memory alloy (SMA-Ti50Ni45Cu5 with 1.0mm in ψ) are bundled and passed through a fixed plastic block. T...

To assure product quality, an early warning and inspection system to predict the variation (trend) of a products quality (i.e. the product thickness) in the manufacturing process is necessary. Here, a manual online measurement of a production line installed with an online automatic warning system that will prevent manually accumulated errors from o...

Pollution and climate change due to the use of fossil fuel can no longer be denied, and this coupled with a waning supply of oil leads one to inevitably conclude that a clean, sustainable energy source is needed. That source is solar energy, the cleanest, safest, and most environmentally friendly energy source we have. In this paper, a photovoltaic...

A broadband noise hybridized with pure tones often occurs in practical engineering work. However, assessments of a muffler's optimal shape design that would simultaneously overcome a broadband noise hybridized with multiple tones within a constrained space were rarely addressed. In order to promote the best acoustical performance in mufflers, five...

The use of perforated-tube side mufflers for depressing venting noise within a constrained space has been prevalent in modern industries. Also, research on mufflers equipped with side inlets/outlets has been thoroughly documented. However, research on shape optimization of side inlet/outlet mufflers hybridized with multiple open-ended perforated in...

The memory effect of the shape memory alloy (SMA — Ti50Ni45Cu5 ) is driven by a phase transformation caused by a variation in the alloy’s temperature. By heating the SMA1 made cantilever beam with various electric circuits, the property of the SMA’s stiffness and loading ability, which is mostly related to safety in practical engineering applicatio...

Global warming is now a serious problem. Therefore, energy conservation, carbon reduction, and the development of alternative green energy have become essential issues. Traditionally, before steam is conducted into the manufacturing process, its pressure has been reduced via a regulator; however, an enormous amount of energy is wasted during this o...

This paper examines the characteristics of the contacting electric resistance of a tact switch, and its fundamental principles. Additionally, various mechanisms and categories of tact switches will be introduced. Moreover, a parametric analysis of the contacting electric resistance with respect to various materials, sizes, coating properties, and a...

Recently, research on new mufflers equipped with connected curved tubes using phase cancellation techniques has been addressed in the industrial field. On the basis of the transfer matrix method and the stiffness matrix method, researchers have explored noise reduction effects within a constrained space. However, the attenuation bands are too narro...

Robots are widely used in modern industrial manufacturing, in households, in entertainment, and in the security sector. Recently, because of the complexity of household-robot missions remotely controlled by the host, the development of a real-time task editable service-oriented security robot that may efficiently execute routine missions by avoidin...

High noise levels in a multi-noise plant can be harmful to workers and can lead to both psychological and physiological problems. Consequently, noise control work on equipment such as acoustic hoods becomes vital. However, research work of shape optimization on space-constrained close-fitting acoustic hoods has been neglected. In this paper, a soun...

Recently, research on new techniques of single-chamber mufflers hybridized with an internal extended tube has been addressed; however, the research work on space-constrained multi-chamber mufflers conjugated with multiple internal extended tubes which may increase the acoustical performance within a specified back pressure has been neglected. There...

Noise control is essential in an enclosed machine room where the noise level is regulated by the occupational safety and health act. In order to overcome noise hybridized by a direct and reverberant sound wave, a sound absorber in conjunction with an acoustical enclosure has been used. However, the traditional method for designing a sound absorber...

The study uses Kinect, modern and depth detectable photography equipment to detect objects on the ground and above the ground. The data collected is used to construct a model on ground level, that is, used lead automatic guiding vehicle. The core of the vehicle uses a PIC18F4520 microchip. Bluetooth wireless communication is adopted for remote conn...

This paper presents the optimal design of an electromagnetic vibration-based generator using the simulated annealing method (SA). To optimally extract the vibrational energy of a system vibrating at a specific frequency, the selected mass and spring stiffness of a resonant vibration is required. The relationship between induced energy and the gener...

Noise control is essential in an enclosed machine room where the noise level has to comply with the occupational safety and health act. In order to overcome a pure tone noise with a high peak value that is harmful to human hearing, a traditional reactive muffler has been used. However, the traditional method for designing a reactive muffler has pro...

Recently, research on new techniques for an economical muffler, which is hybridized with a single-connected curved tube, has been applied in the industrial field. Most researchers have explored noise reduction effects based on the transfer matrix method and the stiffness matrix method. However, the maximum noise reduction of a silencer within a con...