Papers by Keyword: Transplantation

Abstract: With continuous improvement and update of embedded Linux kernel, embedded technology has been widely used in handheld devices and industrial control field. Therefore, a user-friendly graphical user interface (GUI) is essential for these applications. This paper firstly presents the design method for transplanting Qt on embedded platform of ARM9. Secondly it elaborates the device driver development and Qt interface development in Linux system with a Qt test program. All transplantation method of Qt and test program have been tested and verified on the ARM9 platform.

Abstract: To achieve a monitoring system indoor, design a network video surveillance system which based ARM9 processor. The system uses the S3C2440,which produced by Samsung Corporation as the processing chip of the network video surveillance systems, and the USB camera as a video capture device, connecting to the Internet via a wired way. This paper describes an embedded operating system migration and programming, as well as MJPG-steamer video server software compiler and transplantation in detail. Experimental results show that the system is stable, while the video is clear and smooth.

Abstract: When TMS320F28XXX DSP programs run from the on-chip flash, it’s about 30% slower than that from the on-chip RAM, which caused the poor performance when programs run directly from on-chip flash, so program code need to be transplanted to RAM in order to improve the running speed. This paper analyzes the running processes of TMS320F28335 DSP application and the code removal processes from on-chip FLASH to RAM, and then introduces the transplantation programming method. This method is verified feasible through the experiment designed in the project of gun control system based on DSP TMS320F28335, and it can be extended to practical engineering and industrial applications.

Abstract: This paper mainly researches trim and transplantation of the Linux kernel at the platform of ARM.Transplantation of operating system can be done in the following steps: configuration, trim of source code, cross-compilation. This paper make a detailed description about items above,and the realization of it. Transplantation of operating system is the base of embedded system,so it has a important significance on development of embedded system.

Abstract: For the measurement and control of seawater cages breeding site, network communication scheme of the remote measurement and control was firstly designed, and the hardware realization of the system was discussed. The system development environment was built, including the Boa transplantation, Sqlite3 transplantation, and wireless network card transplantation, etc. Finally the system software was designed, including the data acquisition, data storage and web page display, etc. The test results show that the system can achieve remote real-time measurement and control requirements.

Abstract: Neural stem cells (NSCs), as therapeutic agents, play the key role in the treatment of central nervous system (CNS) disorders. It is a researching tendency for promote proliferation and differentiation of neural stem cells by using tissue engineering. It is discovered that joint use neural stem cells and NSCs-seeded scaffold may increase the cell survival state and better control cellular microenvironment. We find suitable material include natural biological materials, synthetic materials, compound materials, bio-derived materials and 3D-materials of neural stem cells tissue engineering by analyzing and summing up of the research which combine tissue engineering with NSCs transplant in past several years. It hold out a hope of the possibility of utilizing the treatment of neural stem cells transplantation with tissue engineering, and there has been a great quantity of achievements on the research of it to treat CNS disorders by promote proliferation and differentiate.

Abstract: Stephanie Kwangsiensis H. S. Lo and Salvia prionitis Hance were two rare and valuable Chinese herbs. Genetic diversity of the two plants were studied by using random amplified polymorphic DNA (RAPD) and inter simple sequence repeat (ISSR) markers after they were transplantation and tissue culture. Results indicated that Nei’s gene diversity (H), Shannon’s information index (I), the percentage of polymorphic loci (PPL) of source / transplantation / tissue culture materials of S. Kwangsiensis H. S. Lo were H=0.282 / 0.195/ 0.056, I=0.415 / 0.290 / 0.087, PPL=75.6% / 56.1% /19.5% based on RAPDs and H=0.295 / 0.292 / 0.111, I=0.445 / 0.435 / 0.166, PPL=85.3% / 85.3% / 32.8% based ISSRs. And the same parameters of source / transplantation / tissue culture materials of S. prionitis Hance were H=0.193 / 0.192 / 0.231, I=0.291 / 0.289 /0.347, PPL=57.8% / 57.2% / 68.6% based on RAPDs and H=0.217 / 0.217 / 0.155, I=0.327 / 0.326 /0.235, and PPL=64.2% / 64.2% / 49.1% based on ISSRs instead. For the transplanted materials, genetic diversity was slightly declining with the disappearance of adversity. And for the tissue culture materials, more genets sampled for tissue culture, less reduction of genetic diversity; and fewer genets sampled, more reduction of genetic diversity. In addition, high genetic diversity appearing in tissue culture materials of S. prionitis Hance partially generate from somatic mutations. And these mutations maybe related to RAPD-PCR regions and just had been checked out by RAPDs.

Abstract: Epidermal stem cells are essential in wound healing, but their amount and activity are decreased in diabetes which contributes to the impaired healing. This study evaluated the efficacy of amniotic membrane loading epidermal stem cells in the management of impaired wound in diabetes. Epidermal stem cells derived from SD rats were isolated, cultured, identified and labled with BrdU in vitro. The wound model of diabetic rats were established, then amniotic membrane loading labled BrdU epidermal stem cells were implanted to impaired wound. The results showed that wound healing rate in amniotic membrane loading epidermal stem cells was significantly higher than that in control groups 14 days after treatment. BrdU-positive cells in the wounds and newborn epidermis were visible. This indicated that amniotic membrane loading epidermal stem cells accelerates epidermal migration of wound margin and wound epithelialization in diabetic rats.

Abstract: This paper describes multi-scale interface for bio and medical engineering based on MEMS technology. MEMS technology can provide various interfaces for biomedical application corresponding to hierarchical components of living organism such as cell, tissue, and organ. This paper mainly deals with small, soft, and safe (S3) micromachine as multi-scale interfaces for medical application. Micromachine is small in nature. S3 micromachine is based on its soft and flexible structure and safe driving principle. These features are suitable for advanced medical tools for minimally invasive medical operations. S3 micromachines-based medical tool has been applied to a retractor for spacing in front of the endoscope at our early stage. This paper also presents the S3 micromachine as a surgical tool for a cell sheet transplantation in an eye.

Abstract: Bone marrow derived-stromal cells (BMSCs) are pluriplotent progenitors for a variety of cell types, including osteoblast, chondrocyte, adipocyte, and so on. Stem cell research has enormous potential in the future clinical treatment of a wide range of diseases. Tracking stem cell localization, survival, differentiation, and proliferation after transplantation in living subjects is essential for understanding stem cell biology and physiology. However, we don’t have exact evaluation methods and safeguards for clinical application. In this study, we investigated tracking BMSCs differentiation, localization, toxicity, and migration in vivo. The fluorescent vector used in our studies did not affect BMSCs viability or their ability to undergo osteogenic and adipogenic differentiation in vitro. During differentiation, EGFP-BMSCs by Oil Red O and Alizarin Red S were stained. EGFP-BMSCs were transplanted into the femoral region in autologous rabbit. After one month, these cells were detectable by confocal microscopy and RTPCR. Transplanted EGFP-BMSCs were not detected another organs (spleen, kidney, liver, and muscle) in immunohistochemistry and RT-PCR. In organ-function test and cell-toxicity examination, there is no difference between the before and after EGFP-BMSCs transplantation. we observed that transplanted EGFP-BMSCs were not affected cell-toxicity and migration. This results offer some evaluation methods and safeguards for clinical application using BMSCs. In further study, it will be needed to test reproductive and developmental toxicity after transplantation and observe migration of EGFP-BMSCs after transplantation.