Journal articles: 'ASSISTED DEVICES'

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Lapin, Craig D. "Assisted cough devices." Pediatric Pulmonology 37, S26 (2004): 149–51. http://dx.doi.org/10.1002/ppul.70088.

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Love, Christine. "Using assisted walking devices." Journal of Orthopaedic Nursing 5, no. 1 (February 2001): 45–53. http://dx.doi.org/10.1054/joon.2000.0141.

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Clemente, Fabrizio, Gian Franco Ferrari, Claudio De Lazzari, and Giancarlo Tosti. "Technical standards for medical devices. Assisted circulation devices." Technology and Health Care 5, no. 6 (December 1, 1997): 449–59. http://dx.doi.org/10.3233/thc-1997-5604.

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Rashed, Engy Osama, Adel Nofal, Ahmed H. Abd EI-Malek, and Mohab Hossam. "Development of a Two-Dimensional Ultrasonic Device for Vibration-Assisted Milling." Machines 10, no. 5 (May 10, 2022): 362. http://dx.doi.org/10.3390/machines10050362.

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Two-dimensional vibration-assisted machining (VAM) is a technique used to improve the cutting performance of machining processes by reducing the cutting forces and the temperature, extending the tool life, and improving the surface quality. Among the developed 2D vibratory devices for VAM, some limitations affect the process stability. This paper aims to present a 2D vibratory device to be applied during the milling process with a setup structure overcoming the limitations of the other developed devices. The device operates at high vibration frequency, prevents the coupling effect problem, provides precise vibration motion, and is easily manufactured, assembled, installed, and maintained. Finite element analysis (FEA) was applied to verify and modify the proposed design. The components of the final design were manufactured, and the generated vibration in each direction was evaluated. A detailed control system was presented to maintain the stability for the applied vibration. Finally, slot-milling experiments were conducted to validate and test the device’s performance. The cutting experiments results showed some benefits of applying the ultrasonic vibration and validated that the 2D vibratory device is functioning properly.

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Saito, Yutaka, Kazuki Sumiyama, and Philip Wai-yan CHIU. "Robot assisted tumor resection devices." Expert Review of Medical Devices 14, no. 8 (August 3, 2017): 657–62. http://dx.doi.org/10.1080/17434440.2017.1358087.

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Burnfield, Judith M., Bernadette McCrory, Yu Shu, Thad W. Buster, Adam P. Taylor, and Amy J. Goldman. "Comparative Kinematic and Electromyographic Assessment of Clinician- and Device-Assisted Sit-to-Stand Transfers in Patients With Stroke." Physical Therapy 93, no. 10 (October 1, 2013): 1331–41. http://dx.doi.org/10.2522/ptj.20120500.

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Background Workplace injuries from patient handling are prevalent. With the adoption of no-lift policies, sit-to-stand transfer devices have emerged as one tool to combat injuries. However, the therapeutic value associated with sit-to-stand transfers with the use of an assistive apparatus cannot be determined due to a lack of evidence-based data. Objective The aim of this study was to compare clinician-assisted, device-assisted, and the combination of clinician- and device-assisted sit-to-stand transfers in individuals who recently had a stroke. Design This cross-sectional, controlled laboratory study used a repeated-measures design. Methods The duration, joint kinematics, and muscle activity of 4 sit-to-stand transfer conditions were compared for 10 patients with stroke. Each patient performed 4 randomized sit-to-stand transfer conditions: clinician-assisted, device-assisted with no patient effort, device-assisted with the patient’s best effort, and device- and clinician-assisted. Results Device-assisted transfers took nearly twice as long as clinician-assisted transfers. Hip and knee joint movement patterns were similar across all conditions. Forward trunk flexion was lacking and ankle motion was restrained during device-assisted transfers. Encouragement and guidance from the clinician during device-assisted transfers led to increased lower extremity muscle activation levels. Limitations One lifting device and one clinician were evaluated. Clinician effort could not be controlled. Conclusions Lack of forward trunk flexion and restrained ankle movement during device-assisted transfers may dissuade clinicians from selecting this device for use as a dedicated rehabilitation tool. However, with clinician encouragement, muscle activation increased, which suggests that it is possible to safely practice transfers while challenging key leg muscles essential for standing. Future sit-to-stand devices should promote safety for the patient and clinician and encourage a movement pattern that more closely mimics normal sit-to-stand biomechanics.

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Huang, Xin Mao, Ke Yi Kuo, and Yi Chiou. "Exploiting Mobile Devices to Assist Identification System of Photos for Social Relationship." Applied Mechanics and Materials 284-287 (January 2013): 3418–22. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.3418.

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With the popularity and prevalence of mobile devices, they have become indispensable daily necessities. The rapid development of software and hardware technology has made mobile devices increasingly powerful in function. Mobile devices have been inextricably linked with people’s lives. Moreover, as a result of the prevalence of social networking sites, the topic of people’s social relationship mining has attracted the attention of numerous researchers. This paper presented a mobile device-assisted determining social relationship system, which mainly uses the mobile device to collect geographic information about the surrounding people to determine whether they are within the angle of view of the mobile device's camera. The information is stored in the pictures as the basis for people relationship mining. The proposed approach has automatic and rapid processing capabilities for large amounts of photo data.

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Lopes, Ana Paula G., and Paulo R. L. Gondim. "Low-Cost Authentication Protocol for D2D Communication in m-Health with Trust Evaluation." Wireless Communications and Mobile Computing 2020 (October 27, 2020): 1–16. http://dx.doi.org/10.1155/2020/8876807.

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Relay-assisted device-to-device (D2D) communication serves users at the edge of system coverage of 5G networks, enabling communication among sensors and patients’ mobile devices, and improving spectral and power efficiency. The security of D2D-based m-health applications requires attention due to the delicacy of the data treated in the collection, transmission, and storage of information on patients, whose devices must be adequately authenticated. However, traditional authentication and key agreement schemes are not suitable for D2D scenarios, since they might expose patients to security vulnerabilities and lead to an excessive use of resources. This article proposes a secure and lightweight scheme based on Shamir secret sharing for the mutual authentication of m-health devices in relay-assisted D2D communications, which provides security robustness and reduces resources (energy, processing) consumption. The manuscript also addresses the trustworthiness of devices involved in data relay and device discovery procedures.

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Hwang, Jaejin, Hemateja Ari, Megha Matoo, Jie Chen, and Jeong Ho Kim. "Effects of Patient Turning Devices on Muscular Demands of Caregivers." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 63, no. 1 (November 2019): 1069–72. http://dx.doi.org/10.1177/1071181319631068.

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This study evaluated the efficacy of commercially-available patient turning devices (draw sheet, friction-reducing turning sheet, air-assisted lateral transfer device, and air-assisted turning device) in reducing muscular demands of caregivers. A repeated-measures laboratory study with 10 experienced caregivers (8 females and 2 males) was conducted to measure the muscle activity in the upper extremities (biceps, triceps, anterior deltoid, middle deltoid, and upper trapezius) and low back (erector spinae) during standardized patient turning tasks. The results showed that the muscle activities in biceps, triceps, and erector spinae were significantly different by transfer device ( p’s < 0.01). The air-assisted turning device showed the significant reduction (21 to 44%) in muscle activities of all muscles except anterior deltoid compared to the conventional manual turning without assistive device (rotating a patient onto caregivers’ sides by pulling the knee and shoulder of the patient). These findings suggest that the air-assisted turning device can be an effective engineering control to reduce the muscular demands in the upper extremities and low back among caregivers.

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Eftekhar, Behzad. "App-assisted external ventricular drain insertion." Journal of Neurosurgery 125, no. 3 (September 2016): 754–58. http://dx.doi.org/10.3171/2015.6.jns1588.

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The freehand technique for insertion of an external ventricular drain (EVD) is based on fixed anatomical landmarks and does not take individual variations into consideration. A patient-tailored approach based on augmented-reality techniques using devices such as smartphones can address this shortcoming. The Sina neurosurgical assist (Sina) is an Android mobile device application (app) that was designed and developed to be used as a simple intraoperative neurosurgical planning aid. It overlaps the patient's images from previously performed CT or MRI studies on the image seen through the device camera. The device is held by an assistant who aligns the images and provides information about the relative position of the target and EVD to the surgeon who is performing EVD insertion. This app can be used to provide guidance and continuous monitoring during EVD placement. The author describes the technique of Sina-assisted EVD insertion into the frontal horn of the lateral ventricle and reports on its clinical application in 5 cases as well as the results of ex vivo studies of ease of use and precision. The technique has potential for further development and use with other augmented-reality devices.

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Koball, Carson, Bhaskar P. Rimal, Yong Wang, Tyler Salmen, and Connor Ford. "IoT Device Identification Using Unsupervised Machine Learning." Information 14, no. 6 (May 31, 2023): 320. http://dx.doi.org/10.3390/info14060320.

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Device identification is a fundamental issue in the Internet of Things (IoT). Many critical services, including access control and intrusion prevention, are built on correctly identifying each unique device in a network. However, device identification faces many challenges in the IoT. For example, a common technique to identify a device in a network is using the device’s MAC address. However, MAC addresses can be easily spoofed. On the other hand, IoT devices also include dynamic characteristics such as traffic patterns which could be used for device identification. Machine-learning-assisted approaches are promising for device identification since they can capture dynamic device behaviors and have automation capabilities. Supervised machine-learning-assisted techniques demonstrate high accuracies for device identification. However, they require a large number of labeled datasets, which can be a challenge. On the other hand, unsupervised machine learning can also reach good accuracies without requiring labeled datasets. This paper presents an unsupervised machine-learning approach for IoT device identification.

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Yu, Zhonggen. "A Systematic Review on Mobile Technology-Assisted English Learning." International Journal of e-Collaboration 15, no. 4 (October 2019): 71–88. http://dx.doi.org/10.4018/ijec.2019100105.

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Mobile English language learning has drawn global attention. This study systematically examined the literature in the recent eleven years. It visualized the general trend of the number of related publications in a decade; discussed the attitudes of teachers and learners toward mobile device assisted English learning; explored the effect of motivation on mobile device assisted English learning, discussed the influence of mobile device assisted English learning on output and input English language skills; presented the influence of mobile device assisted English learning on vocabulary knowledge acquisition; demonstrated the factors influencing the effectiveness of mobile English language learning, showed the general learning outcomes in mobile device assisted English learning; together with the disadvantages of mobile technology-assisted English learning and co-citations of publications. When designing mobile devices, designers could include and optimize learning functions based on the findings.

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Wolf Jr, J. Stuart. "Devices for hand-assisted laparoscopic surgery." Expert Review of Medical Devices 2, no. 6 (November 2005): 725–30. http://dx.doi.org/10.1586/17434440.2.6.725.

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Ferreira, Silvia Moreira Ayub, and Paulo Manuel Pêgo-Fernandes. "Long-term mechanical assisted circulation devices." Sao Paulo Medical Journal 140, no. 3 (June 2022): 329–30. http://dx.doi.org/10.1590/1516-3180.2022.140303122021.

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Mills, Fred. "Robotic and Computer-assisted Surgical Devices." Journal of Medical Marketing 2, no. 4 (September 1, 2002): 360. http://dx.doi.org/10.1057/palgrave.jmm.5040094.

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Glass, P. S. A., J. B. Glen, G. N. C. Kenny, J. Schuttler, and S. L. Shafer. "Nomenclature for Computer-assisted Infusion Devices." Anesthesiology 86, no. 6 (June 1, 1997): 1430–31. http://dx.doi.org/10.1097/00000542-199706000-00033.

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Li, S., and J. B. Khurgin. "Feasibility of phonon‐assisted electronic devices." Journal of Applied Physics 74, no. 4 (August 15, 1993): 2562–64. http://dx.doi.org/10.1063/1.355294.

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Klein, Thomas, and Miriam S. Jacob. "Management of Implantable Assisted Circulation Devices." Cardiology Clinics 30, no. 4 (November 2012): 673–82. http://dx.doi.org/10.1016/j.ccl.2012.07.003.

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Sancar, Feyza. "Robotically Assisted Surgical Devices Raise Caution." JAMA 321, no. 15 (April 16, 2019): 1449. http://dx.doi.org/10.1001/jama.2019.3834.

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Ally, Juma. "Group-Based Data Offloading Techniques Assisted by D2D Communication in 5G Mobile Network." Tanzania Journal of Engineering and Technology 41, no. 2 (June 30, 2022): 52–69. http://dx.doi.org/10.52339/tjet.v41i2.778.

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Machine type communication devices proposed as one of the substantial data collections in the 5G of wireless networks. However, the existing mobile communication network is not designed to handle massive access from the MTC devices instead of human type communication. In this context, we propose the device-to-device communication assisted a mobile terminal (smartphone) on data computing, focusing on data generated from a correlated source of machine type communication devices. We consider the scenario that the MTC devices after collecting the data will transmit to a smartphone for computing. With the limitation of computing resources at the smartphone, some data are offloaded to the nearby mobile edge-computing server. By adopting the sensing capability on MTC devices, we use a power exponential function to compute a correlation coefficient existing between the devices. Then we propose two grouping techniques K-Means and hierarchical clustering to combine only the MTC devices, which are spatially correlated. Based on this framework, we compare the energy consumption when all data processed locally at a smartphone or remotely at mobile edge computing server with optimal solution obtained by exhaustive search method. The results illustrated that; the proposed grouping technique reduce the energy consumption at a smartphone while satisfying a required completion time.

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Lenka, Rakesh Kumar, Manjur Kolhar, Hitesh Mohapatra, Fadi Al-Turjman, and Chadi Altrjman. "Cluster-Based Routing Protocol with Static Hub (CRPSH) for WSN-Assisted IoT Networks." Sustainability 14, no. 12 (June 15, 2022): 7304. http://dx.doi.org/10.3390/su14127304.

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The Internet of Things (IoT) is an evolving concept that has achieved prominence in the modern era. An autonomous sensor-equipped device is the major component of WSN-assisted IoT infrastructure. These devices intelligently sense the environment, automatically collect the data, and deliver the information to paired devices. However, in WSN-assisted IoT networks, energy depletion and hardware faults might result in device failures. Additionally, this might affect data transmission. A reliable route significantly reduces data retransmissions, which can help in congestion reduction and energy conservation. Generally, the sensor devices are typically deployed densely throughout the WSN-assisted IoT networks. A high number of sensor devices covering a monitoring area might result in duplicate data. The clustering method can be used to overcome this problem. The clustering technique reduces network traffic, whereas the multipath technique ensures path reliability. In CRPSH, we used the clustering technique to reduce the duplicate data. Moreover, the multipath approach can increase the reliability of the proposed protocol. CRPSH is intended to minimize the overhead associated with control packets and extend the network’s lifetime. The complete set of simulations is carried out using the Castalia simulator. The proposed protocol is found to reduce energy consumption and increase the lifetime of IoT infrastructure networks.

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Hwang, Jaejin, Veera Aneesh Kuppam, Subhramanya Suryanarayana Raju Chodraju, Jie Chen, and Jeong Ho Kim. "Evaluation of Different Patient Transfer Devices in Reducing Biomechanical Exposures among Professional Caregivers." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 62, no. 1 (September 2018): 933–37. http://dx.doi.org/10.1177/1541931218621214.

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This study systematically investigated the efficacy of commercially-available patient transfer devices (a slide sheet, slide board, air-assisted device, and conventional draw sheet) in reducing biomechanical exposures during standardized lateral patient transfer tasks. A repeated-measures laboratory study with 10 experienced caregivers (9 females and 1 male) was conducted to measure the muscle activity in the upper extremity (flexor digitorum superficialis, extensor digitorum communis, biceps, triceps, and trapezius) and low back (erector spinae), and hand pull force and during standardized lateral patient transfer tasks with four different commercially-available transfer devices. The results showed that there were significant differences between the transfer devices in muscle activity (p’s < 0.01) and hand pull force (p < 0.01). The air-assisted device showed the largest reduction of muscle activities and hand pull force. The slide board also showed lower muscle activities and hand full force as compared to the slide sheet and conventional draw sheet; however, limited differences in muscle activity and hand pull force were found between the slide sheet and conventional draw sheet. These findings indicate that the air-assisted device and slide board may be effective engineering controls to reduce the biomechanical exposures and associated injury risks in the upper extremity and low back among caregivers.

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Hwang, Jaejin, Veera Aneesh Kuppam, Subhramanya Suryanarayana Raju Chodraju, Jie Chen, and Jeong Ho Kim. "Commercially Available Friction-Reducing Patient-Transfer Devices Reduce Biomechanical Stresses on Caregivers’ Upper Extremities and Low Back." Human Factors: The Journal of the Human Factors and Ergonomics Society 61, no. 7 (February 22, 2019): 1125–40. http://dx.doi.org/10.1177/0018720819827208.

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Objective:The aim of this study was to evaluate the efficacy of commercially available friction-reducing patient-transfer devices in reducing biomechanical stresses on caregivers and patients.Background:Caregivers suffer from high prevalence of work-related musculoskeletal disorders, which is associated with manual patient handling. However, there is not enough information available on the efficacy of various friction-reducing devices in reducing biomechanical stresses in the upper extremities and low back.Method:During patient-transfer tasks performed by 20 caregivers, we measured hand force; shoulder and trunk posture; shoulder moment; muscle activity in the flexor digitorum superficialis, extensor digitorum communis, biceps, triceps, trapezius, and erector spinae; and usability ratings from four devices: a draw sheet, a repositioning sheet, a slide board, and an air-assisted device. In addition, triaxial head acceleration of mock patients was measured to evaluate patients’ head acceleration.Results:The slide board and air-assisted device significantly reduced hand force ( p < .001), shoulder flexion ( p < .001), shoulder moment ( p < .001), muscle activities of caregivers ( p < .004), and patients’ head acceleration ( p < .023) compared with the draw sheet. However, no significant differences in biomechanical measures were found between the repositioning and draw sheets. The air-assisted device consistently showed the lowest biomechanical stresses and was most preferred by participants.Conclusion:Reduction in caregivers’ biomechanical stresses and mock patients’ head acceleration indicates that a slide board and an air-assisted device can be effective engineering controls to reduce risk of injury.Application:The study results can provide a recommendation for engineering controls to reduce biomechanical stresses for both caregivers and patients.

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Inoue, Koji, Ajay Kumar Kambham, Dominique Mangelinck, Dan Lawrence, and David J. Larson. "Atom-Probe-Tomographic Studies on Silicon-Based Semiconductor Devices." Microscopy Today 20, no. 5 (September 2012): 38–44. http://dx.doi.org/10.1017/s1551929512000740.

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The development of laser-assisted atom probe tomography (APT) and specimen preparation techniques using a focused ion beam equipped with high-resolution scanning electron microscopy (SEM) has significantly advanced the characterization of semiconductor devices by APT. The capability of APT to map out elements in devices at the atomic scale with high sensitivity meets the characterization requirements of semiconductor devices such as the determination of elemental distributions for each device region.

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Kwon, Dongup, Wonsik Lee, Dongryeong Kim, Junehyuk Boo, and Jangwoo Kim. "SmartFVM: A Fast, Flexible, and Scalable Hardware-based Virtualization for Commodity Storage Devices." ACM Transactions on Storage 18, no. 2 (May 31, 2022): 1–27. http://dx.doi.org/10.1145/3511213.

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A computational storage device incorporating a computation unit inside or near its storage unit is a highly promising technology to maximize a storage server’s performance. However, to apply such computational storage devices and take their full potential in virtualized environments, server architects must resolve a fundamental challenge: cost-effective virtualization . This critical challenge can be directly addressed by the following questions: (1) how to virtualize two different hardware units (i.e., computation and storage), and (2) how to integrate them to construct virtual computational storage devices, and (3) how to provide them to users. However, the existing methods for computational storage virtualization severely suffer from their low performance and high costs due to the lack of hardware-assisted virtualization support. In this work, we propose SmartFVM-Engine , an FPGA card designed to maximize the performance and cost-effectiveness of computational storage virtualization. SmartFVM-Engine introduces three key ideas to achieve the design goals. First, it achieves high virtualization performance by applying hardware-assisted virtualization to both computation and storage units. Second, it further improves the performance by applying hardware-assisted resource orchestration for the virtualized units. Third, it achieves high cost-effectiveness by dynamically constructing and scheduling virtual computational storage devices. To the best of our knowledge, this is the first work to implement a hardware-assisted virtualization mechanism for modern computational storage devices.

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Turc, Cristian Gheorghe, George Belgiu, and Constantin Cărăușu. "Modular Tooling System for Ultrasonic Assisted Cutting." Advanced Materials Research 837 (November 2013): 218–22. http://dx.doi.org/10.4028/www.scientific.net/amr.837.218.

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The paper presents an approach on the possibilities of using of standard tooling systems mostly designed for the applications in the field of cutting processes to the ultrasonic assisted cutting processes, which is an extension of the conventional cutting processes for the purpose of surface roughness improvement and cutting forces reducing. A brief description of the device for the ultrasonic assisting cutting processes is presented, than an overview of the process integration technique, as well as some consideration regarding specific design requirements. A few solutions for rapid adaptation of ultrasonic assisting devices on conventional machining centers are presented, with different levels of flexibility and precision. Finally some recommendations were made, based on specific advantages and drawbacks of each tooling system. The presentation suggests the possibility to realize more standardized devices for ultrasonic assisted cutting processes based on commercial tooling solutions.

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Kapile, Charles, and Nuraedah Nuraedah. "Development of KKNI Oriented Learning Devices Assisted by the Synectic Model." AL-ISHLAH: Jurnal Pendidikan 14, no. 1 (February 22, 2022): 1–10. http://dx.doi.org/10.35445/alishlah.v14i1.1197.

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This study aims to produce KKNI-oriented learning tools assisted by the Synectic Model in the Indonesian society studies course, a university in Indonesia's history education program. This research was carried out in the sixth semester using Educational Research which was adapted from the development model according to Borg Gall, which consisted of six stages: a preliminary study, planning stage, and drafting stage for learning device products KKNI-oriented, assisted by a synectic model, the product validation stage, the revision stage, and product testing, as well as the dissemination stage. The trial subjects of the KKNI-oriented learning device assisted by the Synectic model in the Indonesian society study course were 43 students in that study program. The results of the research are: (1) KKNI-oriented learning tools assisted by a synectic model of Indonesian society studies courses have been produced in a very good category based on the results of product validation by four expert lecturers and the results of student response questionnaires, and (2) KKNI-oriented learning devices assisted by Synectic models in Indonesian society studies courses are effectively used in learning, especially to train students’ creative thinking skills.

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Islam, Md Nazibul, Jarad Yost, and Zachary Gagnon. "Electrokinetically Assisted Paper-Based DNA Concentration for Enhanced qPCR Sensing." Proceedings 60, no. 1 (November 2, 2020): 33. http://dx.doi.org/10.3390/iecb2020-07074.

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Paper-based microfluidics have gained widespread attention for use as low-cost microfluidic diagnostic devices in low-resource settings. However, variability in fluid transport due to evaporation and lack of reproducibility with processing real-world samples limits their commercial potential and widespread adoption. We have developed a novel fabrication method to address these challenges. This approach, known as “Microfluidic Pressure in Paper” (μPiP), combines thin laminating polydimethylsiloxane (PDMS) membranes and precision laser-cut paper microfluidic structures to produce devices that are low-cost, scalable, and exhibit controllable and reproducible fluid flow dynamics similar to conventional microfluidic devices. We present a new μPiP DNA sample preparation and processing device that reduces the number of sample preparation steps and improves sensitivity of the quantitative polymerase chain reaction (qPCR) by electrophoretically separating and concentrating nucleic acids (NAs) continuously on paper. Our device was assembled using two different microfluidic paper channels: one with a larger pore (25 microns) size for bulk fluid transport and another with a smaller pore size (11 microns) for electrophoretic sample concentration. These two paper types were aligned and laminated within PDMS sheets, and integrated with adhesive copper tape electrodes. A solution containing a custom DNA sequence was introduced into the large pore size paper channel using a low-cost pressure system and a DC voltage was applied to the copper tape to electrophoretically deflect the solution containing NAs into the paper channel with the smaller pore size. Samples were collected from both DNA enriched and depleted channels and analyzed using qPCR. Our results demonstrate the ability to use these paper devices to process and concentrate nucleic acids. Our concentration device has the potential to reduce the number of sample preparation steps and to improve qPCR sensitivity, which has immediate applications in disease diagnostics, microbial contamination, and public health monitoring.

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Hotton, Emily J., Natalie S. Blencowe, Nichola Bale, Erik Lenguerrand, Tim J. Draycott, Joanna F. Crofts, and Julia Wade. "Novel device for assisted vaginal birth: using integrated qualitative case study methodology to optimise Odon Device use within a feasibility study in a maternity unit in the Southwest of England." BMJ Open 12, no. 8 (August 2022): e059115. http://dx.doi.org/10.1136/bmjopen-2021-059115.

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ObjectiveWhen novel devices are used ‘in human’ for the first time, their optimal use is uncertain because clinicians only have experience from preclinical studies. This study aimed to investigate factors that might optimise use of the Odon Device for assisted vaginal birth.DesignWe undertook qualitative case studies within the ASSIST Study, a feasibility study of the Odon Device. Each ‘case’ was defined as one use of the device and included at least one of the following: observation of the attempted assisted birth, and an interview with the obstetrician, midwife or woman. Data collection and thematic analysis ran iteratively and in parallel.SettingTertiary referral National Health Service maternity unit in the Southwest of England.ParticipantsWomen requiring a clinically indicated assisted vaginal birth.InterventionThe Odon Device, an innovative device for assisted vaginal birth.Primary and secondary outcome measuresDetermining the optimal device technique, device design and defining clinical parameters for use.ResultsThirty-nine cases involving an attempted Odon-assisted birth were included in this study, of which 19 resulted in a successful birth with the device. Factors that improved use included optimisation of device technique, device design and clinical parameters for use. Technique adaptations included: applying the device during, rather than between, contractions; having a flexible approach to the application angle; and deflating the air cuff sooner than originally proposed. Three design modifications were proposed involving the deflation button and sleeve. Although use of the device was found to be appropriate in all fetal positions, it was considered contraindicated when the fetal station was at the ischial spines.ConclusionsCase study methodology facilitated the acquisition of rapid insights into device function in clinical practice, providing key insights regarding use, design and key clinical parameters for success. This methodology should be considered whenever innovative devices are introduced into clinical practice.Trial registration numberISRCTN10203171.

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Sola-Vera, Javier, Lourdes Catalá, Francisco Uceda, María Dolores Picó, Estefanía Pérez Rabasco, Jesús Sáez, Nuria Jiménez, et al. "Cuff-assisted versus cap-assisted colonoscopy for adenoma detection: results of a randomized study." Endoscopy 51, no. 08 (May 16, 2019): 742–49. http://dx.doi.org/10.1055/a-0901-7306.

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Abstract Background The adenoma detection rate (ADR) is the most important marker of colonoscopy quality. Devices to improve adenoma detection have been developed, such as the Endocuff and transparent cap. The aim of the current study was to examine whether there was a difference in ADR between Endocuff-assisted (EAC) and cap-assisted colonoscopy (CAC). Methods A randomized prospective trial was conducted. Eligible patients included adults ≥ 18 years referred because of symptoms, surveillance, or colonoscopies as part of the Bowel Cancer Screening Programme (BCSP). The primary outcome measure was ADR. Secondary outcomes included mean number of adenomas, mean number of polyps, polyp detection rate, cecal intubation rate, and time to cecal intubation. Procedural measures, device removal rate, and adverse events were also recorded. Results A total of 711 patients (51.1 % men; median age 63 years) were included, of whom 357 patients were randomized to EAC and 354 patients to CAC. In the intention-to-treat analysis, the ADR was similar in both groups: EAC 50.4 % (95 % confidence interval [CI] 45.1 – 55.7) vs. CAC 50.6 % (95 %CI 45.2 – 55.9). Similar results were obtained in the per-protocol analysis: EAC 51.6 % (95 %CI 46.2 – 57) vs. CAC 51.4 % (95 %CI 46 – 56.8). There were no differences between the two devices in ADR according to the mean number of adenomas and polyps per procedure, polyp detection rate, cecal intubation rate, and time to cecal intubation. Device removal rate and adverse events were also similar. Conclusion In this randomized study, no differences in ADR were found between Endocuff- and cap-assisted colonoscopy.

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Izpura, José Ignacio. "Surface-Assisted Luminescence: The PL Yellow Band and the EL of n-GaN Devices." Advances in Condensed Matter Physics 2013 (2013): 1–10. http://dx.doi.org/10.1155/2013/597265.

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Although everybody should know that measurements are never performed directly on materials but on devices, this is not generally true. Devices are physical systems able to exchange energy and thus subject to the laws of physics, which determine the information they provide. Hence, we should not overlook device effects in measurements as we do by assuming naively that photoluminescence (PL) is bulk emission free from surface effects. By replacing this unjustified assumption with a proper model for GaN surface devices, their yellow band PL becomes surface-assisted luminescence that allows for the prediction of the weak electroluminescence recently observed in n-GaN devices when holes are brought to their surfaces.

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Bharathi, B., and Sidhartha Chatterjee. "A Cost Effective Implementation of a Voice Assisted Home Automation System." Applied Mechanics and Materials 704 (December 2014): 390–94. http://dx.doi.org/10.4028/www.scientific.net/amm.704.390.

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Home Automation Systems are mainly targeted towards people with physical difficulties for movement. The proposed Voice Assisted Home Automation System (VAHAS) enables one to control all electrical equipment and peripheral devices by means of just one’s voice. By means of interfacing the devices (which could include lights, televisions, air conditioners and so on) with the Linux powered main device running our software, via RF enabled switches, the system responds to the user’s voice commands and intelligently activates, deactivates and changes the state of the appliances. The paper elucidates the actual implementation of a low cost device and shows the results produced by the system. Scalability and customer accessibility of the system is also considered during design.

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Xia, Yandong, Rongxin Qi, Sai Ji, Jian Shen, Tiantian Miao, and Huaqun Wang. "PUF-Assisted Lightweight Group Authentication and Key Agreement Protocol in Smart Home." Wireless Communications and Mobile Computing 2022 (March 24, 2022): 1–15. http://dx.doi.org/10.1155/2022/8865158.

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Various IoT-based applications such as smart home, intelligent medical, and VANETs have been put into practical utilization. The smart home is one of the most concerned environments, allowing users to access and control smart devices via the public network remotely. The smart home can provide many intelligent services for users through these smart devices. To securely access devices and obtain collected data over the public network, multifactor authentication protocols for smart home have gained wide attention. However, most of these protocols cannot withstand impersonation attack, smart device lost attack, privileged-insider attack, smart card lost attack, and so on. Besides, high communication and computational costs weaken the system performance, which leads to most authentication protocols are not suitable for resource-constrained smart devices. To mitigate the aforementioned drawbacks, we proposed a PUF-assisted lightweight group authentication and key agreement protocol to implement secure access to multiple devices in the smart home simultaneously using the Chinese Remainder Theorem and secret sharing technique. Our protocol also utilizes physical unclonable function (PUF) and fuzzy extractor technique to extract the digital fingerprint of the smart devices, which can uniquely validate smart devices and protect the secrets stored in their memory. Our protocol can support various security features and withstand the many well-known attacks in the smart home. The performance analysis indicates that the proposed protocol can efficiently reduce communication/computational costs when the user simultaneously accesses multiple devices.

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Shakhakarmi, Niraj. "Next Generation Wearable Devices." International Journal of Interdisciplinary Telecommunications and Networking 6, no. 2 (April 2014): 25–51. http://dx.doi.org/10.4018/ijitn.2014040102.

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The next generation wearable devices are Smart health monitoring device and Smart sousveillance hat which are capable of using wearable sensors for measuring physiological information, sousveillanace, navigation, as well as smart device to smart device communications over cellular coverage. Smart health monitoring device collect and observe different health related information deploying biosensors and can predict health problems. Smart sousveillance hat provides the brainwaves based fatigue state, training and sousveillance around the wearer. The next generation wearable smart devices deploy the device to device communications in LTE assisted networks with D2D server, D2D Application server and D2D enhanced LTE signalling for D2D service management, spectrum utilization and broad cellular coverage, which make them portable, social, commercial and sustainable. Thus, the wearable device technology will merge with the smart communications besides the health and wellness. Furthermore, the simulation and performance evaluation shows that LTE-D2D wearable smart device communications provides two times more energy efficiency than LTE-UEs cellular communications. The LTE-D2D data rate is also found significantly higher with higher D2D-SINR for lower relative mobility (= 30m/s) and lower D2D distance (<400m) between devices.

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Salim, Salim, and Era Maryanti. "Pengembangan perangkat pembelajaran matematika melalui teori pembelajaran sibernetik berbantuan software derive." Jurnal Riset Pendidikan Matematika 4, no. 2 (November 29, 2017): 229. http://dx.doi.org/10.21831/jrpm.v4i2.16068.

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Tujuan penelitian ini diantaranya: (1) menemukan karakteristik perangkat pembelajaran yang dikembangkan, (2) mendeskripsikan kevalidan perangkat pembelajaran, (3) menganalisis keefektifan pembelajaran menggunakan perangkat pembelajaran yang dikembangkan dan (4) menganalisis peningkatan kemampuan berpikir kritis siswa melalui pengunaan perangkat pembelajaran yang dikembangkan. Metode dalam penelitian ini menggunakan pendekatan Research And Development menggunakan model Plomp. Hasil penelitian ini diantaranya: (1) karakteristik perangkat pembelajaran yaitu mengandung komponen kemampuan berpikir kritis dan memanfaatkan TIK, (2) perangkat pembelajaran berkategori sangat valid, (3) efektif diterapkan dalam kegiatan pembelajaran matematika, (4) perangkat pembelajaran melalui teori pembelajaran sibernetik berbantuan software derive dapat meningkatkan kemampuan berpikir kritis matematis siswa Development of Mathematical Devices Learning Through the Learning Sibernetic Theory to Assisted Derive Software AbstractThe purpose of this research including: ( 1 ) find characteristic device learning developed , ( 2 ) described validity device learning , ( 3 ) analyze effectiveness of learning using learning devices developed and ( 4 ) analyzing the improved critical thinking ability of students through the use of a device of learning developed . The method in this research use approach to Research And Development using model Plomp .This research result of them: (1) learning device characteristics i.e. contain components of critical thinking ability and make use of ICT, (2) the very valid category of learning devices, (3) effectively applied in learning activities Mathematics, (4) the learning devices through the learning sibernetic theory to assisted derive software can improve the ability of students mathematical thinking critically

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Tang, Ying-Yi, Yang Shen, Jing-Kun Wang, Xiao-Yan Qian, Ming-Lei Guo, Yan-Qing Li, and Jian-Xin Tang. "Micro–Nanostructure‐Assisted Luminescence in Perovskite Devices." Small Structures 2, no. 12 (December 2021): 2170033. http://dx.doi.org/10.1002/sstr.202170033.

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Patel, Rupa, and Michael D. Stifelman. "Hand-Assisted Laparoscopic Devices: The Second Generation." Journal of Endourology 18, no. 7 (September 2004): 649–53. http://dx.doi.org/10.1089/end.2004.18.649.

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Arimoto, Y., H. Gotou, K. Ueno, K. Imaoka, and M. Ozeki. "Pulse-field-assisted bonding for SOI devices." IEEE Transactions on Electron Devices 35, no. 12 (1988): 2429–30. http://dx.doi.org/10.1109/16.8831.

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Bloom, B. S. "Laser-assisted drug delivery: beyond ablative devices." British Journal of Dermatology 170, no. 6 (June 2014): 1217–18. http://dx.doi.org/10.1111/bjd.13072.

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Schifrin, Barry S., Tina Rubinstein, Rodolfo Quintero, Frank Lombano, Melissa Bush, and Lela Lewis. "Adverse Effects of Vacuum-Assisted Delivery Devices." Obstetrics & Gynecology 101, Supplement (April 2003): 7S. http://dx.doi.org/10.1097/00006250-200304001-00013.

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SCHIFRIN, B. "Adverse effects of vacuum-assisted delivery devices." Obstetrics & Gynecology 101, no. 4 (April 2003): S7. http://dx.doi.org/10.1016/s0029-7844(02)02766-7.

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Stifelman, Michael, and Alan M. Nieder. "Prospective comparison of hand-assisted laparoscopic devices." Urology 59, no. 5 (May 2002): 668–72. http://dx.doi.org/10.1016/s0090-4295(01)01672-7.

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Krüger, M., J. Krinke, K. Ritter, B. Zierle, and M. Weber. "Laser-assisted decapsulation of plastic-encapsulated devices." Microelectronics Reliability 43, no. 9-11 (September 2003): 1827–31. http://dx.doi.org/10.1016/s0026-2714(03)00311-1.

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Viktorov, V. A., Yu K. Zavalishin, V. I. Shumakov, L. B. Baeva, V. I. Grankin, V. M. Grinval'd, G. M. Leshchinskii, S. G. Noskov, and A. I. Khaitlin. "Computer-assisted devices for artificial blood clearance." Biomedical Engineering 28, no. 3 (May 1994): 123–29. http://dx.doi.org/10.1007/bf00557855.

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Kim, Sung-O., Yang-Suk Ko, and Hal-Bon Gu. "Electrical properties of nanotip-assisted microplasma devices." Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures 27, no. 1 (2009): 193. http://dx.doi.org/10.1116/1.3043534.

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Sushko, Andrey, Kristiaan De Greve, Madeleine Phillips, Bernhard Urbaszek, Andrew Y. Joe, Kenji Watanabe, Takashi Taniguchi, et al. "Asymmetric photoelectric effect: Auger-assisted hot hole photocurrents in transition metal dichalcogenides." Nanophotonics 10, no. 1 (September 25, 2020): 105–13. http://dx.doi.org/10.1515/nanoph-2020-0397.

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AbstractTransition metal dichalcogenide (TMD) semiconductor heterostructures are actively explored as a new platform for quantum optoelectronic systems. Most state of the art devices make use of insulating hexagonal boron nitride (hBN) that acts as a wide-bandgap dielectric encapsulating layer that also provides an atomically smooth and clean interface that is paramount for proper device operation. We report the observation of large, through-hBN photocurrents that are generated upon optical excitation of hBN encapsulated MoSe2 and WSe2 monolayer devices. We attribute these effects to Auger recombination in the TMDs, in combination with an asymmetric band offset between the TMD and the hBN. We present experimental investigation of these effects and compare our observations with detailed, ab-initio modeling. Our observations have important implications for the design of optoelectronic devices based on encapsulated TMD devices. In systems where precise charge-state control is desired, the out-of-plane current path presents both a challenge and an opportunity for optical doping control. Since the current directly depends on Auger recombination, it can act as a local, direct probe of both the efficiency of the Auger process as well as its dependence on the local density of states in integrated devices.

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Čapek, Richard. "Computer-assisted Cartography." Geografie 93, no. 1 (1988): 48–60. http://dx.doi.org/10.37040/geografie1988093010048.

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The paper gives an outline of computer-assisted cartography for geographers: a) main principles and devices, b) examples of map compilation with the help of the Scitex system, c) list of applications.

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Hornby, T. George, Catherine R. Kinnaird, Carey L. Holleran, Miriam R. Rafferty, Kelly S. Rodriguez, and Julie B. Cain. "Kinematic, Muscular, and Metabolic Responses During Exoskeletal-, Elliptical-, or Therapist-Assisted Stepping in People With Incomplete Spinal Cord Injury." Physical Therapy 92, no. 10 (October 1, 2012): 1278–91. http://dx.doi.org/10.2522/ptj.20110310.

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BackgroundRobotic-assisted locomotor training has demonstrated some efficacy in individuals with neurological injury and is slowly gaining clinical acceptance. Both exoskeletal devices, which control individual joint movements, and elliptical devices, which control endpoint trajectories, have been utilized with specific patient populations and are available commercially. No studies have directly compared training efficacy or patient performance during stepping between devices.ObjectiveThe purpose of this study was to evaluate kinematic, electromyographic (EMG), and metabolic responses during elliptical- and exoskeletal-assisted stepping in individuals with incomplete spinal cord injury (SCI) compared with therapist-assisted stepping.DesignA prospective, cross-sectional, repeated-measures design was used.MethodsParticipants with incomplete SCI (n=11) performed 3 separate bouts of exoskeletal-, elliptical-, or therapist-assisted stepping. Unilateral hip and knee sagittal-plane kinematics, lower-limb EMG recordings, and oxygen consumption were compared across stepping conditions and with control participants (n=10) during treadmill stepping.ResultsExoskeletal stepping kinematics closely approximated normal gait patterns, whereas significantly greater hip and knee flexion postures were observed during elliptical-assisted stepping. Measures of kinematic variability indicated consistent patterns in control participants and during exoskeletal-assisted stepping, whereas therapist- and elliptical-assisted stepping kinematics were more variable. Despite specific differences, EMG patterns generally were similar across stepping conditions in the participants with SCI. In contrast, oxygen consumption was consistently greater during therapist-assisted stepping.LimitationsLimitations included a small sample size, lack of ability to evaluate kinetics during stepping, unilateral EMG recordings, and sagittal-plane kinematics.ConclusionsDespite specific differences in kinematics and EMG activity, metabolic activity was similar during stepping in each robotic device. Understanding potential differences and similarities in stepping performance with robotic assistance may be important in delivery of repeated locomotor training using robotic or therapist assistance and for consumers of robotic devices.

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Waraga, Sri Susanti, Tirtawaty Abdjul, and Abdul Haris Odja. "Development of Google Sites-Assisted Learning Devices on Vibrations and Waves Material." Jurnal Penelitian Pendidikan IPA 9, no. 8 (August 25, 2023): 6101–10. http://dx.doi.org/10.29303/jppipa.v9i8.4275.

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Website-assisted learning in science learning can make it easier for students to increase their understanding of knowledge concepts and construct their knowledge based on problems encountered in everyday life to improve learning outcomes. One application that is quite well-known and can be used as a website-assisted learning site is the Google Sites site. Google Sites is a structured application that can easily create websites. Google Sites is an online application launched by Google for creating classes, schools, or other websites. This study aims to determine the quality (validity, practicality, and effectiveness) of the Google Sites Assisted Learning Device on Vibration, Waves, and Sound material. This type of development research refers to the 4-D Model development research consisting of four stages of development, namely Define, Design, Development, and Dissemination. After being validated by two validators, a limited trial was carried out by 58 students consisting of 29 class VIII-A students and 29 class VIII-B at SMP Negeri 1 Kwandang, then the most comprehensive test was carried out by 30 class VIII students at SMP Negeri 2 Kwandang. Data collection techniques in this study used expert validation sheets, student response questionnaires, and student learning outcomes tests. The results of this study indicate that the validation of Google Sites assisted learning devices is included in the “Valid” category. The practicality of Google Sites helped learning devices is seen from the results of the implementation of learning in class and the student's responses from both trials showing the “Good” category. The Google Sites assisted learning device developed meets the valid, practical, and effective criteria to be suitable for use in science learning in schools.

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Marsano, Joseph, Sheeva Johnson, Stephanie Yan, Latifat Alli-Akintade, Machelle Wilson, Amar Al-Juburi, Jesse Stondell, and Sooraj Tejaswi. "Comparison of colon adenoma detection rates using cap-assisted and Endocuff-assisted colonoscopy: a randomized controlled trial." Endoscopy International Open 07, no. 12 (November 25, 2019): E1585—E1591. http://dx.doi.org/10.1055/a-0996-7891.

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Abstract Objectives and study aim Colonoscopy prevents colorectal cancer by removing adenomatous polyps, but missed adenomas lead to interval cancers. Different devices have been used to increase adenoma detection rates (ADR). Two such devices of interest are the transparent cap (Olympus) and Endocuff (ARC Medical). Our study aimed to compare differences in ADR between Endocuff-assisted colonoscopy (EAC), cap-assisted colonoscopy (CAC) and standard colonoscopy (SC). Patients and methods A sample size of 126 subjects was calculated to determine an effect size of 30 %. Patients undergoing screening or surveillance colonoscopy between March 2016 and January 2017 were randomized to SC, CAC or EAC groups. Three experienced endoscopists performed all colonoscopies. Patient demographics, procedure indication, Boston Bowel Prep Score (BBPS), withdrawal time, polyp size, location, histopathology, were analyzed. Results There was no difference in ADR (52 %, 40 % and 54 %) in the SC, CAC and EAC groups respectively (P = 0.4). Similar findings were also observed for proximal ADR (45 %, 35 %, and 50 %, P = 0.4) and SSA detection rate (16 %, 14 %, and 23 %, P = 0.5). EAC detected higher mean ADR per colonoscopy compared to CAC (1.70 vs 0.76, P = 0.01). However, there was no significant difference in mean ADR per positive colonoscopy (2.08, 1.63, and 2.59, P = 0.21). Conclusion In a randomized controlled trial comparing AC to CAC and SC, neither device conferred additional benefits in ADR among high detectors. When comparing each device, EAC may be better than CAC at detecting more total adenomas.

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Journal articles on the topic 'ASSISTED DEVICES'

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