LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 48

Search options

  1. Article: [Concerns of Technical Evaluation on Registration of All-inside Meniscus Suture System].

    Gao, Jintao / A, Ruhan / Wu, Jing / Liu, Bin

    Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation

    2023  Volume 47, Issue 4, Page(s) 437–441

    Abstract: Objective: To summarize the product registration declaration ideas and registration technical review of the all-inside meniscal suture system, and to systematically think about of the technical review concerns of the all-inside meniscal suture system ... ...

    Abstract Objective: To summarize the product registration declaration ideas and registration technical review of the all-inside meniscal suture system, and to systematically think about of the technical review concerns of the all-inside meniscal suture system products to provide technical guidance for improving the quality of registration and application and regulatory efficiency.
    Methods: Consult the public information of such products at home and abroad, and summarize the experience of registration review of such products.
    Results: The technical review of the all-inside meniscus suture system registration mainly focuses on product basic information, pre-clinical research, clinical evaluation and product technical requirements.
    Conclusions: The difficulty of product registration and declaration of the all-inside meniscus suture system lies in the provision of pre-clinical research data of the product, and the applicant needs to strengthen the basic research ability, formulate scientific technical indicators and test methods to ensure the safety and effectiveness of the product, and also provide sufficient supporting data for the registration declaration.
    MeSH term(s) Humans ; Menisci, Tibial/surgery ; Suture Techniques ; Tibial Meniscus Injuries/surgery ; Sutures ; Arthroscopy/methods
    Language Chinese
    Publishing date 2023-08-14
    Publishing country China
    Document type English Abstract ; Journal Article
    ISSN 1671-7104
    ISSN 1671-7104
    DOI 10.3969/j.issn.1671-7104.2023.04.016
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  2. Article ; Online: Enhance tensor RPCA-LRX anomaly detection algorithm for hyperspectral image

    A, Ruhan / Mu, Xiaodong / He, Jingyuan / Zhang, Jinjin

    Geocarto International. 2022 Dec. 13, v. 37, no. 26 p.11976-11997

    2022  

    Abstract: In this paper, a spectral–spatial anomaly detection method based on tensor de-composition is proposed. Firstly, tensor data is used to represent hyperspectral data to retain its original spectral and spatial information. Second, this method reconstructs ... ...

    Abstract In this paper, a spectral–spatial anomaly detection method based on tensor de-composition is proposed. Firstly, tensor data is used to represent hyperspectral data to retain its original spectral and spatial information. Second, this method reconstructs the hyperspectral data into low-rank tensors and sparse tensors. This method uses the weighted tensor Schatten-p norm minimization (WTSNM) to stand for rank minimization. WTSNM treats different singular values differently. Finally, the reconstructed sparse tensor is used as input data and the LRX method is used to detect abnormal targets. As this approach can effectively utilize the spectral information and spatial information of hyperspectral images, it greatly improves detection accuracy, experimental results on five real data sets demonstrate that the proposed method outperforms several state-of-the-art algorithms.
    Keywords algorithms ; hyperspectral imagery ; spatial data ; Reed-Xiaoli (RX) ; enhanced TRPCA (ETRPCA) ; weighted tensor Schatten-pnorm minimization (WTSNM) ; hyperspectral anomaly detection (HAD) ; hyperspectral image (HSI)
    Language English
    Dates of publication 2022-1213
    Size p. 11976-11997.
    Publishing place Taylor & Francis
    Document type Article ; Online
    ISSN 1752-0762
    DOI 10.1080/10106049.2022.2063400
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Article ; Online: Estimation of Aboveground Biomass of Individual Trees by Backpack LiDAR Based on Parameter-Optimized Quantitative Structural Models (AdQSM)

    A Ruhan / Wala Du / Hong Ying / Baocheng Wei / Yu Shan / Haiyan Dai

    Forests, Vol 14, Iss 475, p

    2023  Volume 475

    Abstract: Forest aboveground biomass (AGB) plays a key role in assessing forest productivity. In this study, we extracted individual tree structural parameters using backpack LiDAR, assessed their accuracy using terrestrial laser scanning (TLS) data and field ... ...

    Abstract Forest aboveground biomass (AGB) plays a key role in assessing forest productivity. In this study, we extracted individual tree structural parameters using backpack LiDAR, assessed their accuracy using terrestrial laser scanning (TLS) data and field measurements as reference values, and reconstructed 3D models of trees based on parameter-optimized quantitative structural models (AdQSM). The individual tree AGB was estimated based on individual tree volumes obtained from the tree model reconstruction, combined with the basic wood density values of specific tree species. In addition, the AGB calculated using the allometric biomass models was validated to explore the feasibility of nondestructive estimation of individual tree AGB by backpack LiDAR. We found that (1) the backpack LiDAR point cloud extracted individual tree diameter at breast height (DBH) with high accuracy. In contrast, the accuracy of the tree height extraction was low; (2) the optimal parameter values of the AdQSM reconstruction models for Larix gmelinii and Betula platyphylla were HS = 0.4 m and HS = 0.6 m, respectively; (3) the individual tree AGB estimated based on the backpack LiDAR and AdQSM fit well with the reference values. Our study confirms that backpack LiDAR can nondestructively estimate individual tree AGB, which can provide a reliable basis for further forest resource management and carbon stock estimation.
    Keywords backpack LiDAR ; aboveground biomass ; quantitative structure models ; nondestructive estimation ; Plant ecology ; QK900-989
    Subject code 333
    Language English
    Publishing date 2023-02-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  4. Article ; Online: IOT based portable heart rate and SpO2 pulse oximeter.

    Ganesh, Kakumanu Vamsi Sree Sai / Jeyanth, S P Shibu / Bevi, A Ruhan

    HardwareX

    2022  Volume 11, Page(s) e00309

    Abstract: Ever since the COVID-19 pandemic, the necessity of new,innovative medical devices to analyse and monitor the situation has become profound. With this in mind, we have developed an IOT based portable and cost-efficient heart rate and SpO2/level sensor ... ...

    Abstract Ever since the COVID-19 pandemic, the necessity of new,innovative medical devices to analyse and monitor the situation has become profound. With this in mind, we have developed an IOT based portable and cost-efficient heart rate and SpO2/level sensor device with efficient performance. The proposed system is equipped with an onboard OLED with simple internet connectivity, which publishes data on the OLED and to a HTML webpage. The salient features include its portability, user compatibility and is unique in its way of transmitting collected data online, making it achieve better results than the current available solutions in various ways. The system has on board a MAX30100 sensor(Pulse Oximeter sensor) and along with the IOT based microcontroller(WeMos D1 mini) enables the facility to monitor the real time health data of patients in real-time through a HTML page.
    Language English
    Publishing date 2022-04-21
    Publishing country England
    Document type Journal Article
    ISSN 2468-0672
    ISSN (online) 2468-0672
    DOI 10.1016/j.ohx.2022.e00309
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  5. Article: [Discussion of Application Status and Key Attentions on Registration for Ossicular Replacement Prosthesis].

    Wu, Jing / Zhang, Jiazhen / A, Ruhan / Zhai, Bao / Jin, Le / Shi, Xinli

    Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation

    2023  Volume 47, Issue 6, Page(s) 684–689

    Abstract: The ossicular replacement prosthesis should have good biocompatibility, stability, easy to install, and excellent sound transmission capacity. In this study, the characteristics of ideal materials for the ossicular replacement prosthesis were analyzed by ...

    Abstract The ossicular replacement prosthesis should have good biocompatibility, stability, easy to install, and excellent sound transmission capacity. In this study, the characteristics of ideal materials for the ossicular replacement prosthesis were analyzed by searching the types of materials used in clinical practice and comparing the advantages and disadvantages of various materials and structures. At the same time, in combination with the current evaluation requirements and evaluation experience, the focus of the performance research project of ossicular replacement prosthesis in the process of registration is discussed to clarify the performance evaluation requirements of these products, so as to provide reference for the future work of manufacturers and regulators. The performance evaluation of ossicular replacement prosthesis focuses on its mechanical properties, fixation stability, sound transmission characteristics, biological characteristics, and magnetic resonance compatibility.
    MeSH term(s) Ossicular Prosthesis ; Ossicular Replacement ; Sound ; Prosthesis Design ; Treatment Outcome
    Language Chinese
    Publishing date 2023-12-12
    Publishing country China
    Document type English Abstract ; Journal Article
    ISSN 1671-7104
    ISSN 1671-7104
    DOI 10.3969/j.issn.1671-7104.2023.06.018
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  6. Article: [Analysis of Key Points and Difficulties in Registration Application of Inflatable Bone Expander].

    A, Ruhan / Zhang, Jiazhen / Zhai, Bao / Liu, Bin

    Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation

    2021  Volume 45, Issue 4, Page(s) 424–428

    Abstract: With the advantages of inflatable bone expander in the treatment of osteoporotic vertebral compression fractures, the number of applications for registration of such products is increasing. Based on the characteristics of the medical device, this article ...

    Abstract With the advantages of inflatable bone expander in the treatment of osteoporotic vertebral compression fractures, the number of applications for registration of such products is increasing. Based on the characteristics of the medical device, this article analyzed and summarized the relevant requirements for the basic information, product performance research, product manufacturing, clinical evaluation, and product instructions that should be focused on the registration application dossiers, as well as comply with the requirements of CMDE. The focus of the registration application for Inflatable Bone Expander should be the standardization of the application dossiers, while the difficulty was the scientific rationality of the research data. Comments and suggestions are provided to relevant practitioners on standardization of registration application dossiers. It may help them to optimize the quality of registration application dossiers while improve the efficiency of registration applications.
    MeSH term(s) Bone Cements ; Fractures, Compression ; Humans ; Spinal Fractures ; Treatment Outcome
    Chemical Substances Bone Cements
    Language Chinese
    Publishing date 2021-08-06
    Publishing country China
    Document type Journal Article
    ISSN 1671-7104
    ISSN 1671-7104
    DOI 10.3969/j.issn.1671-7104.2021.04.016
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  7. Article: [Discussion and Concern on Animal Study for Orthopaedic Implantable Devices].

    Zhang, Jiazhen / Zhai, Bao / A, Ruhan / Jin, Le / Guo, Yajuan / Shi, Xinli

    Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation

    2023  Volume 47, Issue 5, Page(s) 550–556

    Abstract: In recent years, new orthopaedic implantable devices continue to emerge, which require higher requirements for technical evaluation. Animal study is an important part of the research and development process for the new orthopedic implantable devices, ... ...

    Abstract In recent years, new orthopaedic implantable devices continue to emerge, which require higher requirements for technical evaluation. Animal study is an important part of the research and development process for the new orthopedic implantable devices, which provides relevant evidence for product design and stereotyping. By introducing the purpose of animal study, and the application of 3R principle (replacement, reduction, refinement) in this field, we summarize the concern on the animal study, in order to provide reference for the development and research of new orthopedic implantable devices and biomaterials. At the same time, the application of evidence-based research methods such as systematic review in the field is introduced, which provides new tools and approaches for the technical review and regulatory science.
    MeSH term(s) Animals ; Orthopedics ; Biocompatible Materials ; Prostheses and Implants ; Research Design
    Chemical Substances Biocompatible Materials
    Language Chinese
    Publishing date 2023-09-27
    Publishing country China
    Document type English Abstract ; Journal Article
    ISSN 1671-7104
    ISSN 1671-7104
    DOI 10.3969/j.issn.1671-7104.2023.05.016
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  8. Article ; Online: Perspective on the application of genome sequencing for monkeypox virus surveillance.

    Chen, Yuda / Wu, Changcheng / A, Ruhan / Zhao, Li / Zhang, Zhongxian / Tan, Wenjie

    Virologica Sinica

    2023  Volume 38, Issue 2, Page(s) 327–333

    MeSH term(s) Humans ; Monkeypox virus/genetics ; Base Sequence ; Phylogeny ; Mpox (monkeypox)/epidemiology ; Mpox (monkeypox)/genetics
    Language English
    Publishing date 2023-03-25
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1011219-4
    ISSN 1995-820X ; 1000-3223 ; 1003-5125
    ISSN (online) 1995-820X
    ISSN 1000-3223 ; 1003-5125
    DOI 10.1016/j.virs.2023.03.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 4175: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  9. Article ; Online: IOT based portable heart rate and SpO2 pulse oximeter

    Kakumanu Vamsi Sree Sai Ganesh / S.P. Shibu Jeyanth / A. Ruhan Bevi

    HardwareX, Vol 11, Iss , Pp e00309- (2022)

    2022  

    Abstract: Ever since the COVID-19 pandemic, the necessity of new,innovative medical devices to analyse and monitor the situation has become profound. With this in mind, we have developed an IOT based portable and cost-efficient heart rate and SpO2/level sensor ... ...

    Abstract Ever since the COVID-19 pandemic, the necessity of new,innovative medical devices to analyse and monitor the situation has become profound. With this in mind, we have developed an IOT based portable and cost-efficient heart rate and SpO2/level sensor device with efficient performance. The proposed system is equipped with an onboard OLED with simple internet connectivity, which publishes data on the OLED and to a HTML webpage. The salient features include its portability, user compatibility and is unique in its way of transmitting collected data online, making it achieve better results than the current available solutions in various ways. The system has on board a MAX30100 sensor(Pulse Oximeter sensor) and along with the IOT based microcontroller(WeMos D1 mini) enables the facility to monitor the real time health data of patients in real-time through a HTML page.
    Keywords IOT Based pulse oximeter ; WeMos D1 mini-ESP8266 ; MAX 30,100 ; COVID-19 ; SpO2 ; Science (General) ; Q1-390
    Language English
    Publishing date 2022-04-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  10. Article ; Online: Summary of the Detection Kits for SARS-CoV-2 Approved by the National Medical Products Administration of China and Their Application for Diagnosis of COVID-19.

    A, Ruhan / Wang, Huijuan / Wang, Wenling / Tan, Wenjie

    Virologica Sinica

    2020  Volume 35, Issue 6, Page(s) 699–712

    Abstract: The on-going global pandemic of coronavirus disease 2019 (COVID-19) caused by a novel coronavirus called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been underway for about 11 months. Through November 20, 2020, 51 detection kits for ... ...

    Abstract The on-going global pandemic of coronavirus disease 2019 (COVID-19) caused by a novel coronavirus called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been underway for about 11 months. Through November 20, 2020, 51 detection kits for SARS-CoV-2 nucleic acids (24 kits), antibodies (25 kits), or antigens (2 kits) have been approved by the National Medical Products Administration of China (NMPA). Convenient and reliable SARS-CoV-2 detection assays are urgently needed worldwide for strategic control of the pandemic. In this review, the detection kits approved in China are summarised and the three types of tests, namely nucleic acid, serological and antigen detection, which are available for the detection of COVID-19 are discussed in detail. The development of novel detection kits will lay the foundation for the control and prevention of the COVID-19 pandemic globally.
    MeSH term(s) COVID-19/diagnosis ; COVID-19 Serological Testing/methods ; COVID-19 Testing ; China ; Clinical Laboratory Techniques ; Humans ; Immunoassay/methods ; Luminescent Measurements ; Molecular Diagnostic Techniques/methods ; Pandemics ; Reagent Kits, Diagnostic ; Real-Time Polymerase Chain Reaction ; SARS-CoV-2/isolation & purification
    Chemical Substances Reagent Kits, Diagnostic
    Language English
    Publishing date 2020-12-22
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 1011219-4
    ISSN 1995-820X ; 1000-3223 ; 1003-5125
    ISSN (online) 1995-820X
    ISSN 1000-3223 ; 1003-5125
    DOI 10.1007/s12250-020-00331-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 4175: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

To top