2018.3
About Instruments Today No. 214
Long-term Care and Biomedical Engineering
A Fresh Turning Point for the Diagnosis and Treatment of Sleep Disorders [ 下載 PDF ]
Chung-Yao Hsu
Antibacterial Nanomaterials for Elderly Long-Term Care [ 下載 PDF ]
Yu-Jia Li, Shih-Chun Wei, Chih-Ching Huang
Long-term elderly health care is a major concern in the present world with the rapidly increasing ageing population. Chronic wound healing and management is an important issue in the long-term care for the elderly. Nowadays, many antibiotics and antibacterial products are used effectively in wound management to reduce the health hazards caused by bacterial infection. However, the ability of bacteria to develop resistance against multiple drugs leading the evolution of multi-drug resistant strains has become a serious world-wide public health problem, due to the abuse of antibiotics. Thus, there is an urgent need to develop new types of antibacterial materials that can combat multi-drug resistant bacteria. Recently, some nanomaterials have been shown to exhibit unique antimicrobial activities. We have successfully developed gold- and carbon-based nanomaterials for antibacterial wound dressing to treat multi-drug resistant bacterial strains.
Development of Pressure Sensing Technology for Caring Senior Inpatients [ 下載 PDF ]
Tsai-Wei Huang, Ya-Chin Chen, Huai-Ti Hsieh, Han-Chao Chang
This article describes the current status of hospitalized treatment of middle-aged and elderly people in our country and introduces how the pressure sensing specifi cations and technologies developed in various countries are applied to the care management of elderly patients when they are hospitalized. Finally, an introduction to the ongoing MOST project “Development of Immediate Anti-drop Pressure Sensing System for Caring Senior Inpatients”, which was developed to reduce the incidence of falls among wards in the wards and to reduce the workload of nurses.
Spectral Analysis of Natural Solar Ultraviolet B for Improving Vitamin D Synthesis [ 下載 PDF ]
Yu-Hsuan Lin, Yi-Wen Chiu, Ming-Yen Lin, Hsin-Yi Tsai, Kuo-Cheng Huang
The paper presents a spectral analysis system for the long-term solar ultraviolet B measurement. It has the advantages of weatherproof, low cost and high resolution. The absolute irradiance information of sunlight in a fixed location has been measured and analysed. After considering the weighting function of vitamin D action synthesis and skin cancer generation, the best period to go out for sunning could be proposed. During this period, humans can get the highest vitamin D synthesis with minimum damage of skin. This study provides a solution for database establishment of healthy lamp development.
Development of Diagnostic Devices Applied in Long-term Care [ 下載 PDF ]
Wen-Hsin Wang, Yun Fu, Chao-Min Cheng
In the rapidly aging population structure, long-term care has become one of the most important topics to date. However, with a limited budget and staff attendance, even the central and local governments are making vigorous efforts to promote relevant policies, they are still far behind the people needed. Therefore, if the test strip can be brought into the fi eld of long-term care, it not only can reduce the huge expense required for long-term care but also increase the convenience of the caretaker so that the attendant can quickly and accurately understand the current physical condition and the services required of each patient.
Application of No-contact Skin Oxygen Saturation Imaging System [ 下載 PDF ]
Hsin-Yi Tsai, Kuo-Cheng Huang, Jer-Liang Andrew Yeh
In this study, the non-contact skin optical images were used to construct skin oxygen saturation distribution image and applied to the assessment of physiological indexes such as blood oxygen saturation, heart rate and blood flow velocity. In the study, the red and infrared light were irradiated on the skin tissue and the skin images of both light sources were acquired. Based on the intensity information of reflected skin images, the index of blood oxygen saturation could be calculated. At the same time, the change of blood oxygen saturation in a period of time could be transferred to the spatial frequency of oxygen saturation by the fast Fourier transform (FFT) technique to estimate the heartbeat, blood flow velocity and other physiological characteristics. The technology proposed in this study has the advantages of non-contact, high penetration depth and high image light intensity and resolution, and construct the skin oxygen saturation imaging (SOSI) system, which can be applied to clinical cardiovascular disease and chronic disease diagnosis and research for the assessment of a physiological state of health in the future.
Introduction to X-Ray Coherent Diffraction Imaging [ 下載 PDF ]
Chien-Chun Chen, Ning-Jung Chen, Jhih-Heng Yang
Coherent diffraction imaging is currently one of the major image techniques in Taiwan Photon Source. The beauty of the experimental setup is so simple that no lenses are needed to form an image. This lensless imaging technique bypasses the sophisticated aberration-correction process; hence it has been widely applied to image biological structures, soft matters, and micro-/nano-materials. In addition, a high-resolution non-destructive 3D structural determination can be performed through the combination of computed tomography. In this article, the history, developments, and various experimental setups of coherent diffraction imaging will be introduced. The bottleneck and future challenges are also discussed.
Investigation of Electrode Forming of Screenprinted Graphene Films by Using High Pulsed Ultraviolet Laser Direct Writing [ 下載 PDF ]
Shih-Feng Tseng, Wen-Tse Hsiao, Tien-Li Chang
This study aims to develop the laser direct writing (LDW) and image stitching technologies by using an ultraviolet (UV) laser processing system for the electrode forming and to investigate the interaction between laser beams and graphene thin films coated on glass substrates. The laser processing parameters including the laser pulse fluence, the pulse repetition frequency, and the scanning speed of galvanometers were adjusted to ablate out the graphene thin films. The laser pulse repetition frequency and the scanning speed of galvanometers could apply to calculate the overlapping rate of laser spot and to discuss the surface quality of electrode forming. The surface morphology, edge quality, three-dimensional topography, and profile of isolated lines and electrode structures after laser forming were measured by a confocal laser scanning microscope and a scanning electron microscope (SEM). Moreover, a semiconductor parameter analyzer was used to measure the I-V curve before and after laser forming on film surfaces and also to discuss the electrical property at different laser fluences. The experimental results revealed that the UV laser fluences increased from 0.62 J/cm2 to 2.43 J/cm2 with increasing the ablated line widths and depths from 27.3 µm to 34.2 µm and from 1.53 µm to 2.14 µm, respectively. In addition, the ablated line widths and depths increased from 6.2 µm to 9.9 µm and from 2.2 µm to 3.5 µm when decreasing the scanning speeds of galvanometers from 2000 mm/s to 200 mm/s, respectively. When the UV laser fluence set 3.027 J/cm2 for the direct writing the multigraphene films, the ablated trench was electric isolation after measuring the I-V curve. The output current values were zero at different input voltages that could prove the electric isolation on both sides of ablated trenches.
Accelerated Light-Induced Degradation Test for Industrial Applications [ 下載 PDF ]
Chia-Mei Lin, Marcus Gläser, Dominik Lausch
Light-induced degradation (LID) is a well-known problem of industrial silicon solar cells and can lead to severe electrical performance loss through the formation of recombination-active defects during the excess carrier injection by illumination or forward biasing. Thereby an effective LID inspection for industry is essential. Unfortunately, a standard LID test procedure based on the solar cell level is currently missing. Moreover, the maintenance of the traditional degradation source - light is challenging. In order to solve these concerns, our goal of this work is to develop a reliable and rapid LID test procedure upon a customer friendly LID test machine. This article introduces the development process of the machine and its industrial applications.
