检索结果-内蒙古大学图书馆

Characterization of a new triaxial nanofiber membrane and osteogenic differentiation capacity of human bone marrow mesenchymal stem cells for bone repair

引用

Journal of Materials Research 2025年 1-18页

作者： Altundag-Erdogan, Özlem Çetinkaya, Hayrullah Çelebi-Saltik, Betül Altun, Belgin Şahin, Mehtap Mağden, Gamze Kara Öteyaka, Mustafa Özgür Department of Stem Cell Sciences Graduate School of Health Sciences and Center for Stem Cell Research and Development Hacettepe University Sihhiye Ankara06100 Turkey Department of Chemical Engineering Eskisehir Osmangazi University Eskişehir26040 Turkey Vocational School Health Services Hacettepe University Sihhiye Ankara06100 Turkey BUGAMED Biotechnology Industry and Trade Inc Eskişehir26380 Turkey Eskişehir Vocational School Electronics and Automation Eskisehir Osmangazi University Mechatronic Program Eskişehir26250 Turkey

A triaxial nanofiber membrane was developed using a custom triaxial nozzle during electrospinning. The membrane consisted of three layers (outer middle (PVA-Collagen Type I-BMP-2), and inner (PVA-nHAP)). TEM revealed the diameters of the outer, middle, and inner layers as 167.5, 142.6, and 119.3 nm, respectively. The triaxial nanofiber membrane exhibited superior tensile strength (36 MPa) and elastic modulus (2.5 GPa), along with a roughness of 359 nm and hydrophilic properties. In addition, it demonstrated a 200% swelling ratio and reduced bacterial colonization by 10.8-fold. Both Calcium deposition and ALP activity were significantly higher and increased expression of BSP (eightfold), OCN (13-fold), and OPN (488-fold) genes were observed in membrane + OST groups (p © The Author(s), under exclusive licence to The Materials Research Society 2025.

关键词： Bone

来源：评论

学校读者我要写书评

暂无评论

Motion analysis of arm movement during badminton smash

Motion analysis of arm movement during badminton smash

引用

2010 IEEE EMBS Conference on Biomedical engineering and Sciences, IECBES 2010

作者： Salim, M.S. Lim, H.N. Salim, M.S.M. Baharuddin, M.Y. Biomedical Electronic Engineering Program School of Mechatronic Engineering Universiti Malaysia Perlis Malaysia

ISBN: (纸本)9781424476008

In badminton, it demands excellent physical fitness and good motor coordination for the development of sophisticated racquet movement. This project aims at identifying the difference of forehand overhead smash performed by male and female players. The parameters to study were focused on upper arm, forearm and wrist segments. Qualisys Track Manager (QTM) software and five Oqus camera system were used to record and analyze the performance of e subjects. Eight male and eight female participants served as the subjects. Reflective markers were attached at the key locations on the subject's arm to observe the arm movement during the execution of smash. The subject was directed to stand on the position of the smashing area within the measurement volume and his/her partner who was assigned to serve was directed to stand in the serving area. A sequence of badminton smash movements, from the position of holding racket to smashing motion was captured by the camera. The results obtained indicated that the male subject has higher racquet grip velocity than the female subject. The movement of shoulder abduction and elbow extension were anticipated to be the key contributor for the male players to perform a rapid smash. The female subjects showed a synchronized and significant range of motion especially in the wrist rotation. © 2010 IEEE.

关键词： Motion analysis

来源：评论

学校读者我要写书评

暂无评论

Development of camera imaging software to investigate elbow joint laxity

Development of camera imaging software to investigate elbow ...

引用

2010 IEEE EMBS Conference on Biomedical engineering and Sciences, IECBES 2010

作者： Salim, M.S. Sobri, M.S. Sukor, F.A.A. Biomedical Electronic Engineering Program School of Mechatronic Engineering Universiti Malaysia Perlis Malaysia

ISBN: (纸本)9781424476008

The purpose of development the camera imaging software is to investigate the kinematics movements of the elbow joint. The software developed using Visual Basic 2008 Express Edition. It is a set of free and easy-to-use developer tool. This camera imaging software is used to measure the elbow joint motion between the radius and ulna with humerus bone by angle produce at the location. The angle measure will then to be used to determine the elbow joint laxity. The camera imaging software is used with the attached of arm device which has been designed and developed before. From the results, it found that in both medial and lateral epicondyle, angles move relative to each other. As the medial epicondyle angle becomes larger, the lateral epicondyle angle becomes smaller and vice versa. Also, the dislocations range is between 0° to 4°. © 2010 IEEE.

关键词： Cameras

来源：评论

学校读者我要写书评

暂无评论

The Characterization of Bario Rice Starch-nanoHA Scaffolds using SEM and Dielectric Measurement

The Characterization of Bario Rice Starch-nanoHA Scaffolds u...

引用

2019 International Conference on Biomedical engineering, ICoBE 2019

作者： Roslan, M.Riza Nasir, N.F.Mohd Khalid, M.F.Abdul Cheng, E.M. Amin, N.A.M. Mohammad, N. Beh, C.Y. Majid, M.S.A. Microwave Research Institute Universiti Teknologi Mara Shah Alam Malaysia Biomedical Electronic Engineering Program School of Mechatronic Engineering Universiti Malaysia Perlis Perlis Malaysia Mechanical Engineering Program School of Mechatronic Engineering Universiti Malaysia Perlis Perlis Malaysia

Bone tissue scaffold had been ventured for over the decades as a solution for bone failure and trauma. Starch is the most common natural polymer that has been used as a biomaterials and a good candidate for scaffold fabrication as there are many resources of starch in Malaysia. Native starches may contribute differently in their structure in terms of the amylose content, interactions between granules, swelling ability and solubility in which those differences can be mainly due to the botanical origin. In Malaysia, there are various resources of rice starches. Here, the Bario rice starch from Sarawak was used to fabricate the scaffold via solvent casting and salt leaching technique. Bario rice is usually collected from various sources and variety which may contribute to different physical affect in comparison of using other type of rice. From the study, the morphologies and microstructures of the scaffold were evaluated using Scanning Electron Microscopic (SEM) and this showed no trend of pore size increment when starch percentage varied. Then, the dielectric properties were obtained via the values of dielectric constant and dielectric loss which are another type of indirect measurement to study the porosity of the scaffolds. The porosity has the value of the dielectric constant and the loss air matrix whereby this air matrix is represented by the pore in the scaffold. Here, the results were consistent with the observation made through SEM. Thus, the relationship between the porosity and the dielectric properties of the Bario Rice Starch-nHA tissue scaffolds had been established and there were no particular pattern could be concluded by using Bario rice for this scaffold. © 2019 IOP Publishing Ltd. All rights reserved.

关键词： Starch

来源：评论

学校读者我要写书评

暂无评论

Fibre based bioplastic film from Morus sp. (mulberry) leaves for medical purpose

Fibre based bioplastic film from Morus sp. (mulberry) leaves...

引用

2019 International Conference on Biomedical engineering, ICoBE 2019

作者： Aziz, Izzat Aiman Robiah Mohamad, Che Wan Sharifah Adollah, Robiyanti Biomedical Electronic Engineering Program School of Mechatronic Engineering Universiti Malaysia Perlis Perlis-Arau02060 Malaysia

New trend was shown the application of biodegradable plastic was used in the medicinal field especially as a template for the 3rd and 4th degree of burning is extensively studied. Currently, a bioplastic in medicinal applications for burning treatment comes from various materials based on fossil oil and synthetic chemical. Morus sp. among abundant plant and normally used for skin and inflammation treatment in traditional practices. The aim of this research is to synthesis bioplastic by using Polyvinyl alcohol (PVA) incorporates with Morus sp. leaves as the alternative of the skin template for a burning patient. With the phytochemical in the leaves such as phenolic, flavonoid and high content of antioxidant, hopefully, it will able to enhance the cell growth on the burning site without any contamination from the bacteria. 2 g Morus sp. leaves was blend with different concentration of the PVA (20%, 40%, 60%, 80%, and 100%) to produce plastic films. This mixture was stirred under constant magnetic stirring at 95°C for 1 hour. The mixtures are then pouring into a glass petri dish and dried in an oven at 50°C for 24 hours. The characterization of bioplastic is based on an antimicrobial test, tensile test, microstructure analysis using SEM and chemical composition analysed using FTIR. According to the results, a bioplastic made up from mixes Morus sp. leaves with 80% PVA has the best mechanical and antimicrobial properties. Therefore, the result showed a possible application of the film as an alternative for the medical purpose. © 2019 IOP Publishing Ltd. All rights reserved.

关键词： Blending

来源：评论

学校读者我要写书评

暂无评论

Malaysia and telecare - A preliminary study

引用

作者： Megat Ali, Megat Syahirul Amin Jahidin, A.H. Nasir, N. F. Mohd Saidatul, A. Zakaria, Z. Salleh, A.F. Mustafa, N. Biomedical Electronics Engineering Program School of Mechatronic Engineering Universiti Malaysia Perlis Kangar Malaysia

ISBN: (纸本)9783540691389

Advancements in nutrition, sanitation, health practices and medical care has significantly reduced infant mortality rate improved the life expectancy of the population. With the increasing ageing population and chronic disease sufferers, this presents a challenge in the field of healthcare delivery. This gets worse with the decline of workforce in healthcare sector and increasing medical cost. Awareness of this situation has led several developed country to implement telecare in easing the problems faced. Malaysia as a developing nation will also face similar challenges in the future. Thus, this paper presents a preliminary study on several factors contributing to the need of telecare technology. Preliminary findings indicate an early sign that the country is also heading towards a similar development as those experienced by the European countries. In the future, it is worth to note that telecare can be an alternative option to counter the adverse effects of increasing ageing population. © 2008 Springer-Verlag.

关键词： Diseases

来源：评论

学校读者我要写书评

暂无评论

Visualization of Methamphetamine-Contaminated Fingermarks on Glass Surfaces by Field Emission Scanning Electron Microscope for Forensic Investigation

引用

Journal of Forensic Science and Medicine 2023年第1期9卷 6-11页

作者： Sarah Aliah Amir Sarifudin Kah Haw Chang Bee Ee Khoo Ahmad Fahmi Lim Abdullah Forensic Science Program School of Health SciencesHealth CampusUniversiti Sains MalaysiaKelantanMalaysia Mechatronic Engineering Program School of Electrical and Electronic EngineeringEngineering CampusUniversiti Sains MalaysiaPenangMalaysia

Background:Fingermark is an individual’s primary identification *** is helpful in determining individuals involved in illegal activities and is frequently encountered in clandestine *** forensic investigation,the critical question to be answered is whether a fingermark was left on a surface before or after the initiation of an unlawful *** and Objectives:This study aimed to investigate the visualization of methamphetamine-contaminated fingermarks on glass surfaces and estimate the immediacy of their *** and Methods:In this study,the prior-deposition contaminated fingermarks,i.e.,fingermarks deposited a surface priorly contaminated by methamphetamine,and the postdeposition contaminated fingermarks,i.e.,fingermarks deposited on a clean surface but subsequently contaminated with methamphetamine were visualized and compared using Field Emission Scanning Electron Microscope(FESEM).Results:Under FESEM,the latent fingermarks and the crystalline structure of methamphetamine were clearly *** postdeposition contaminated fingermarks appeared in smudge conditions in all the three replicate samples,where the ridge and nonridge areas could not be *** the contrary,the prior-deposition contaminated fingermark demonstrated distinct separations between ridges and ***,the application of fingerprint powders reduced the possibility to determine the immediacy of ***:To conclude,both prior-deposition contaminated fingermarks and postdeposition contaminated fingermarks can be discriminated,providing information on the instance when a fingermark was left on a surface.

关键词： Fingermark methamphetamine scanning electron microscope visualization powder

来源：评论

学校读者我要写书评

暂无评论

Improving power scooter in systematic innovative thinking

International Journal of Systematic Innovation

引用

International Journal of Systematic Innovation 2018年第2期5卷 35-44页

作者： Pai, Po-Han Shaw, Heiu-Jou Engineering Management Graduate Program College of Engineering National Cheng Kung University Taiwan Department of System and Naval Mechatronic Engineering National Cheng Kung University Taiwan

With the improvement of medicine and health care, the elderly are facing the dilemma of independent mobility Because the life expectancy of people in Taiwan has greatly increased. And the population structure of this society has been ageing rapidly . At this time, the power scooter is the most important action aids in life, so the design of safety of power scooters is a vital factor, especially in the initial launch, out of c ontrol scooters likely to sudden unintended acceleration (SUA). In order to prevent all possible accidents, it is essential to ensure that the scooter is in a safe state when traveling along a route. In order to deal with these problems above, our study proposes a Triz-based theory by redesigning the speed controller system. Firstly, use the method of The Systematic Innovative Thinking defines the potential problems and key disadvantage. Then, take use of Contradiction matrix and 40 Inventive principles to target solution. Finally, by using Trimming tool to delete unnecessary elements. These methods can maintain functional integrity of power scooters and increase the safety of people who take the vehicle. The study improve speed controller system of power scooters and add PWM and Soft-starter to correct the problem of sudden unintended acceleration. Power scooters traffic accidents caused by improper handing have declined greatly. Provide the elderly a kind of safe assistive devices for independent mobility. © 2018 Society of Sytematic Innovation.

关键词： Elderly Power scooter Sudden unintended acceleration (SUA) TRIZ

来源：评论

学校读者我要写书评

暂无评论

Blood cell image segmentation: A review

引用

作者： Adollah, Robiyanti Mashor, M.Y. Mohd Nasir, N.F. Rosline, H. Mahsin, H. Adilah, H. Biomedical Electronic Engineering Program School of Mechatronic Engineering Universiti Malaysia Perlis Kangar Perlis Malaysia Mechatronic Engineering Program School of Mechatronic Engineering Universiti Malaysia Perlis Kangar Perlis Malaysia Hematology Department University Hospital University Science Malaysia Kubang Kerian Kelantan Malaysia Patalogy Department Hospital Tuanku Fauziah Perlis Malaysia

ISBN: (纸本)9783540691389

Image processing technique involved five basic components which are image acquisition, image preprocessing, image segmentation, image post-processing and image analysis. The most critical step in image processing is the segmentation of the image. In this paper, we review some of the general segmentation methods that have found application in classification in biomedical-image processing especially in blood cell image processing. Basically, segmentation of the image divides the whole image into some unique disjoint regions. The fact that the segmented image should retain maximum useful information and discard unwanted information makes the whole process critical. © 2008 Springer-Verlag.

关键词： Image segmentation

来源：评论

学校读者我要写书评

暂无评论

Development of structural type mortars reinforced with corn fiber (Zea Mays)

引用

Journal of engineering Science and Technology Review 2019年第4期12卷 69-77页

作者： Monsalve, Mónica Higuera, Oscar Estrada, Pedro Orozco, Marlyn Pedraza, Cristian Department of Mechanical and Mechatronic Engineering National University of Colombia Cr 45 # 26-85 Bogotá Colombia CONFORMAT Research Group Mechanical Engineering program University of Atlántico Km 7 Antigua vía Puerto Colombia Colombia

In this investigation, structural type mortars reinforced with corn fibers were elaborated;these fibers were previously treated with flaxseed oil and paraffin, cut to lengths of 1, 2 and 5 cm, and weighed, in order to obtain a ratio of 0.5% and 1% by weight with respect to the quantity of cement. The fibers were physic chemically characterized by Thermogravimetric Analysis (TGA), Derivative Thermogravimetry (DTG) and Fourier Transform Infrared Spectrometry (FTIR), and their chemical resistance was evaluated by exposing them to a concentrated solution of Ca(OH)2 that simulated the alkaline medium of the cement. The fiber-reinforced mortars were mechanically characterized by compression and bending tests, which were performed 7, 21 and 28 days after processing. The results show that after 28 days the paraffin-coated corn fiber reinforced mortars, with 1 cm in length and 0.5% in weight presented the best results, an increase in the compressive and flexural strength of 16.92% and 38.51% respectively was noted, compared to the unreinforced mortar. © 2019 School of Science, IHU.

关键词： Bending strength

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：