Digital Display System Research Articles

Design and Construction of a Remote Web-Based Digital Display System

Design and Construction of a Remote Web-Based Digital Display System

Near-infrared tunable Tamm plasmons high-performance hot electron photodetector based on Ag/Ge2Sb2Te5 low Schottky barrier

Hot electron photodetector is a typical hot electron optoelectronic device, which can realize the narrow band photoelectric detection with high tunability and sensitivity. The Tamm plasmons (TPs) based on the planar metal film/distributed Bragg reflector (DBR) has the advantages of simple structure, low manufacturing cost, and high absorption efficiency. A multilayer thin film device structure for high-performance near-infrared hot electron metal-semiconductor-metal photodetectors is proposed. The structure is based on Ag/Ge2Sb2Te5 (GST) Schottky barrier and TPs formed by SiO2/MoS2 DBR. The simulation results of hot electron emission theory show that DBR can effectively extend the absorption spectrum of Ag film and the response spectrum of the device, and enhance the absorption rate of Ag film and the response of the device. The responsivity which is up to 53 mA/W can be obtained by adjusting the structure parameters of the DBR, the thickness of the Ag film, and the GST layer. At the same time, we also propose a digital display system based on the arrangement of crystalline GST and amorphous GST. It provides a new way for the realization of high-performance near-infrared hot electronic devices and is conducive to expanding the application field of hot electronic photodetectors.

The application of digital display in heritage museum

Museum as a basic platform for urban construction and cultural propaganda, its purpose is to let people understand the historical development context and the experience of historical figures, to provide collection, research, display integrated service system, is an important witness of historical development. With the continuous development of social economy and science and technology, while attaching great importance to spiritual pursuit, people will get more spiritual satisfaction from the museum platform. Especially in the background of the digital era, heritage museums pay more attention to providing people with high-quality and efficient cultural services while actively exploring new display modes. Therefore, how to apply digital display theory and technology? It has become a core subject for museums to explore actively in the new era. After understanding the content and requirements of site museum display design under the digital background, this paper mainly studies the design framework of digital site museum dynamic panoramic virtual display system, and then from the perspective of practical development, defines the digital display design content of site museum in the new era, in order to provide an effective basis for the construction and management of site museum in the new era.

Design and Implementation of VR Digital Displaysystem for Tujia Mogus Dance

Virtual Reality (VR) is a research hotspot in the field of computer graphics in recent years, which is widely used. Tujia Maogusi dance is a national intangible cultural heritage of our country and the crystallization of Tujia civilization. This paper takes Tujia Maogusi dance as the research object, combining with virtual reality technology, proposes the design path of VR digital display system based on Tujia Maogusi dance, and applies this path to show the VR digital cultural performance of Tujia Maogusi dance. The research shows that the VR digital display system of Tujia Maogusi dance has certain practicality, interactivity and invasiveness, which provides a reference scheme for the live display of intangible cultural heritage in China.

CRISPR-Powered DNA Computing and Digital Display.

Clustered regularly interspaced short palindromic repeats (CRISPR) technology has unique specificity for recognizing and cleaving target DNA complementary to the CRISPR guide sequence. Here, we report on a CRISPR-powered DNA computing and digital display system in which programmed DNA targets serve as the input and an ON/OFF fluorescence signal indicates a TRUE/FALSE output. This system allows the establishment of a one-to-one relationship between input and output, enabling multilevel DNA logic computing. Applying pre-CRISPR reactions that selectively maintain or inhibit CRISPR reactivity can further improve the computing capability by expanding input size. In particular, we present a paper-based microfluidic chip with freeze-dried CRISPR reaction mixtures that are programmed to digitally display the results of functional operations, including square, cube, and square-root operations. This strategy allows information decoding and displaying as well, which brings potential in next-generation DNA steganography and cryptography. We envision that the intrinsic orthogonality of CRISPR provides a new paradigm for DNA computing and molecular programming.

TOWARD A WIDER AUDIENCE, SYSTEMATIC APPROACH OF REINTERPRETATION AND REPRESENTATION OF THE EAST MAIN HALL OF FOGUANG TEMPLE BASED ON DIGITAL DOCUMENTATION AND 3D VISUALIZATION TECHNIQUES

Abstract. Rebuilt in 857 AD, the East Main Hall of Foguang Temple is the highest ranking wooden architecture to survive from the Tang Dynasty, and is regarded as a rare cultural and architectural gem of China and of the world at large1. Since its rediscovery in 1937, extensive research on the East Main Hall of Foguang Temple has been conducted, mostly about its high values and methods applicable to its conservation and management, while less attention is given to its interpretation and representation, especially to the public audiences.Based on continued digital documentation and study of the East Main Hall of Foguang Temple by Tsinghua Univeristy and Beijing Guowenyan Cultural Heritage Conservation Center over the past 16 years, this paper is a comprehensive overview of the ongoing systematic attempt to leverage digital documentation and acquired research results as content and tool for heritage interpretation and presentation. The works involved include translation of digital survey and documentation of the wooden structure, colored statues and murals of Foguang Temple as content in three approaches: the first approach is the development of an on-site digital display system for Foguang Temple; the second approach involves the planning and designing of a large-scale interactive museum exhibition; the third approach, which wraps up the whole system into a public-centered storytelling experience, involves an ongoing animation series on air at multiple social media platforms that tells unknown stories about Foguang Temple. All three approaches are intended at developing emotional connections between the public and the cultural heritage through reinterpretation and representation, with the aim of making heritage dissemination more dialogical and sustainable by bringing history to life.

Embedded digital display and warning system of velocity ratio and wheel slip for tractor operated active tillage implements

A microcontroller-based embedded digital display and warning system was developed for measuring wheel slippage, velocity ratio, PTO torque, and draft requirement of active tillage machinery. The hardware system included magnetic pickup sensor for measuring the engine speed, load cells and amplifiers to measure and amplify the sensing unit signals of the draft, proximity sensors for wheel slip, and PTO torque transducer for measuring the torque requirement. It was provided with buzzers and LEDs to warn the operator, whenever slip and velocity ratio were not in the desired range based on the algorithm, for maximum fuel efficiency and tractive performance. It measured slippage, velocity ratio, torque and draft with a maximum absolute variation of 12.90%, 7.92%, 8.99% and 11.57%, respectively. The developed system can be easily adaptable to any combination of tractor and tillage implements, and guide the operator for better soil tilth with lesser energy input.

Remotely controlled boat for water quality monitoring and sampling

• Prototype of a remotely controlled boat to monitor the real-time water characteristics. • Characteristics monitored are temperature, pH, conductivity with GPS location. • Open-source software application and hardware is used for monitoring device. • A low-cost water quality monitoring device. This research work entails the design and manufacturing of a prototype of a remotely controlled boat which can monitor the real-time water characteristic of a large water body like a lake or river. These characteristics can be used to plot a map of a water body and help to identify zones of concentrated contamination. The continuous nature of the water will be identified, and results are shown through a multi-sensor network. It will consider numerous components and presents this ongoing quality through the presentation of its electrical conductivity, pH, total dissolved solids (TDS), along with the temperature of the water that is being tried and tested. The water monitoring and sampling can help in understanding the effect of water pollution on aquatic life. The boat is planned with a square frame structure utilizing PVC pipes which will limit the resistivity of water stream and this shape additionally keeps up the stability of the boat in the water. This water quality observing boat incorporates a Bluetooth module for remote correspondence. All the outcomes are created and shown with their readings on the PC and LED screen, alongside water's pollutants and restriction points. A GPS unit mounted on the boat enables the user to get the exact location of the boat and contamination. The related probe will be immersed in water and reads the data accordingly. The water sampling unit can be used to collect samples at different locations and the samples can be sent for intensive testing. The boat is controlled using a smartphone application for its movement to different locations to conduct the required analysis. The data collected is sent to the data server and displayed with the user-friendly digital display system. The entire system is compact and easy to handle. Thus, this wirelessly controlled boat can prove to be an efficient and accurate water quality monitoring device.

A Stretchable Capacitive Strain Sensor Having Adjustable Elastic Modulus Capability for Wide‐Range Force Detection

Stretchable strain sensors are important components of soft robotics, rehabilitation assistance, and human health monitoring systems. However, strain sensors capable of wide‐range force detection with adjustable modulus facilities are highly desirable to obtain mechanical feedback in various scenarios. Herein, a stretchable capacitive strain sensor capable of adjustable modulus and wide‐range force detection is reported. The sensor consists of two liquid metals (LMs) filled thermoplastic elastomer (TPE) tubes encapsulated in flexible silicone. The adjustable modulus capability of the sensor is attained by mounting the sensor with springs of different elastic coefficients. During electromechanical tests, the elastic coefficient‐dependent adjustable modulus is obtained in the range of 0.78–10.3 MPa. After optimizing the performance, a sensor capable of wide force‐sensing range (0.07–74 N), high cyclic stability (>3500 cycles), with low hysteresis, good linearity, and fast response time (<50 ms) is achieved. Finally, a digital display system is developed to display the amount of detected force during the loading of the sensor, which confirms the great capability of the sensor to be applied in joint rehabilitation and soft robotic fields.

Design and Construction a Falling Water Digital Display System

Design and Construction a Falling Water Digital Display System

P‐8.3: A Novel Wireless Transmission System for UHD Digital Art Display

With the development of ultra‐high definition (UHD) display technology, the display system can make the picture more appealing and realistic. It is very difficult for us ordinary people to enjoy the traditional famous art works because of its expensive price and the rare amount. Compared with the traditional art works, the price of the novel UHD digital art display system is reasonable. What's more, it can provide the real sense as the realistic paintings. Besides the photo display, the customer also want the system display the UHD video. This paper presents a novel wireless transmission system based on the rk3399 chip from Rockchip with Wi‐Fi module, bluetooth module, ethernet network module and highspeed interface circuit for UHD digital art display, especially for UHD vedio. It is designed that a hardware system with smaller printed circuit board (PCB), lower power loss and lower price. Furthermore, the transmission rate is less than 300ms, which can provide an excellent watch enjoyment.

Design and Implementation of a Sequential Digital Display for a Nigerian University

A sequential digital display is an electronic system that is used to display information to the public. It is a device that contains light emitting diodes that conveys messages by a programmable controller or mechanical processes, regardless of size. Sequential digital display is fast gaining acceptance and application in different spheres of life. In this work, a sequential digital display system was designed and implemented. The components used include transformer, diodes, voltage regulator, resistors (fixed and variable types), capacitors, NE 555 timer, IC4017, IC7432, light emitting diodes and transistors. The aim of the project was to carry out a cost effective design, therefore, the components of the design were readily available and relatively cheap. The light emitting diodes displayed a message written as: Welcome to NOUN Ado-Ekiti study center. The project was tested and commissioned and found to meet specified design requirements.Keywords—Integrated Circuit, Light Emitting Diodes, Sequential Digital Display, Transistor

Scleral Transillumination With Digital Heads-Up Display: A Novel Technique for Visualization During Vitrectomy Surgery.

To describe a novel technique of scleral indentation and transillumination for single-surgeon, unassisted vitrectomy and vitreous base shaving enhanced with a digital heads-up display system (NGENUITY 3D Visualization System; Alcon, Fort Worth, TX). This technique was utilized in six eyes of six patients during vitrectomy surgery for common vitreoretinal surgical diagnoses. In each case, the transillumination was performed with the traditional intraocular light pipe set at 100% power, placed obliquely just posterior to the vitreous base insertion, with or without a transillumination adapter. The visualization of the vitreous cavity was digitally enhanced using a heads-up display system (NGENUITY 3D) with light amplification settings increased to near-maximal gain. In each case, the adequacy of the surgical view was judged intraoperatively by two independent surgeons who shared the same surgical view as the primary surgeon. In this series, the surgical view provided by the scleral transillumination was deemed adequate to safely perform surgery in five of six cases. In the one patient in whom this was not the case, vitrectomy was completed using traditional endo-illumination and scleral depression performed by a skilled assistant. Lighter fundus pigmentation, myopia, thin sclera, and absence of dense peripheral media opacities were associated with improved view with scleral transillumination. There were no intraoperative complications. Digitally enhanced scleral transillumination affords surgeons another option for safe and effective simultaneous scleral depression and illumination for unassisted peripheral vitrectomy. [Ophthalmic Surg Lasers Imaging Retina. 2018;49:436-439.].

Research on the Digital Communication and Development of Yunnan Bai Embroidery

Our country attaches great importance to the protection and development of intangible culture these days, but the shortcoming of discoloration, breakage and occupying too much space still exist in the traditional way of museum protection. This paper starts from the analysis of the above problems, and then cogitates why and how to use the virtual reality (VR) technology to better solve these problems and analyzes this specific object of the Yunnan Bai embroidery in order to achieve its full human value and economic value. Firstly, using 3D MAX to design and produce the three-dimensional model of the embroideries of Bai nationality. Secondly, using the large number of embroidery model data that we collect to construct the Yunnan Bai embroidery model database. Next, creating a digital display system of virtual embroidery and putting the digital display system to the PC client websites and mobile phone applications to achieve information sharing. Finally, through the use of virtual display technology for three-dimensional design of embroidery, the embroidery clothing, bedding and other works with modern style can be designed so as to continuously pursue and give full play to the charm and economic value of embroidery.

A Comparative Study of Sagittal Balance in Patients with Neuromuscular Scoliosis

OBJECTIVES:Spinopelvic alignment has been associated with improved quality of life in patients with vertebral deformities, and it helps to compensate for imbalances in gait. Although surgical treatment of scoliosis in patients with neuromuscular spinal deformities promotes correction of coronal scoliotic deformities, it remains poorly established whether this results in large changes in sagittal balance parameters in this specific population. The objective of this study is to compare these parameters before and after the current procedure under the hypothesis is that there is no significant modification.METHODS:Sampling included all records of patients with neuromuscular scoliosis with adequate radiographic records treated at Institute of Orthopedics and Traumatology of Clinics Hospital of University of São Paulo (IOT-HCFMUSP) from January 2009 to December 2013. Parameters analyzed were incidence, sacral inclination, pelvic tilt, lumbar lordosis, thoracic kyphosis, spinosacral angle, spinal inclination and spinopelvic inclination obtained using the iSite-Philips digital display system with Surgimap and a validated method for digital measurements of scoliosis radiographs. Comparison between the pre- and post-operative conditions involved means and standard deviations and the t-test.RESULTS:Based on 101 medical records only, 16 patients met the inclusion criteria for this study, including 7 males and 9 females, with an age range of 9-20 and a mean age of 12.9±3.06; 14 were diagnosed with cerebral palsy. No significant differences were found between pre and postoperative parameters.CONCLUSIONS:Despite correction of coronal scoliotic deformity in patients with neuromuscular deformities, there were no changes in spinopelvic alignment parameters in the group studied.

Could Ergonomics of Portable Oxygen Cylinders Prevent Wastage? Comparison of Two Delivery Devices

Abstract: Ambulatory oxygen therapy is sometimes needed when transferring inpatients. The prescribed administration rate must be maintained during the entire transit time. This implies that paramedical staff calculates the volume of gas remaining in the cylinder, based on the residual pressure displayed on the oxygen cylinders. This step carries a risk of errors and wastage. The objective of this study was to assess the impact of a digital autonomy display system on the use of oxygen cylinders at the hospital.: Two B5 oxygen cylinders (Air Liquide Santé France) were compared: Presence™ (regular manometer) and Takeo™ (digital display). This study was carried out in two wards; Presence™ cylinders were supplied for two months, and then Takeo™ cylinders for the next two months. For each period, we measured the turnover rates of the cylinders and their residual pressure. The economic impact of this change in practice was estimated by a cost study.: Use of Takeo™ cylinders resulted in a significant decrease in the turnover rate (69 % vs. 93 %,: A digital autonomy display increases the delivery performance of portable medicinal oxygen cylinders and generates an economic gain.

INFLUENCE OF DISPLAY CHARACTERISTICS ON CLINICAL PERFORMANCE IN DIGITAL PATHOLOGY

Introduction/ Background Digital Pathology adoption is increasing rapidly. Recent technological advances have resulted in a steep increase in the performance and quality of digital pathology systems. Quality assurance mechanisms are being developed to ensure consistent quality of scanned slide images. However one important component that surprisingly is often overlooked is the display system. Pathologists base their diagnosis on the images presented by the display. The quality of these digital images depends on all of the components in the imaging chain, including the display itself. Even a perfectly scanned high quality image will not be useful if it is visualized on a low quality display. Aims The goal of this paper is to study important display characteristics and to determine what their effect is on percent correct diagnosis, reading time, diagnostic confidence and inter-pathologist-agreement. Furthermore a recommendation will be provided for minimum requirements of a digital pathology display system. Methods This paper combines and analyses results of several experiments that we have performed during the last two years. These studies included actual clinical studies where pathologists diagnose clinical images, reading studies where pathologists subjectively score quality of clinical images, as well as bench testing on both test and clinical images. Separately analyzing the influence of display luminance, color settings, calibration and quality assurance, stability and resolution allows us to determine a relative importance of these characteristics. It also allows recommending minimal display specifications Results A first clinical study analyzed the impact of luminance and color instability/aging of display systems on reading time, percent correct diagnosis, and inter pathologist agreement. 120 clinical digital pathology images were presented to pathologists. The images were scored and the diagnosis and reading time was recorded. The study shows that both luminance and color instability result into lower percent correct, lower inter pathologist agreement, and higher reading time. The results also suggest that color instability has a larger influence than luminance instability. A second study focused on color settings of a display. Three different calibration settings were compared: “sRGB”, “DICOM GSDF” and a recently proposed new standard “CSDF”. Bench testing and subjective reader preference analysis was performed. Results indicate that perceived contrast of clinically relevant features in digital pathology images is higher when using CSDF compared to sRGB and DICOM GSDF. A final study looked at display size, resolution, contrast and luminance and their influence on subjective quality preference, ease of reading and reading time. Based on the combination of these different results we make clear recommendations for minimum specifications for digital pathology display systems.

用于激光数字投影显示系统的匀光整形元件设计

用于激光数字投影显示系统的匀光整形元件设计

The Design of Digital Image Display System Based on FPGA

With the development of computer, multimedia and integrated circuit technology, more and more information are digital, so that the storage and processing including images, sounds and words, etc. After processing the information, of course, it eventually to be represented in the form of people can accept. FPGA has the characteristics of the device, occupies an important position in the information processing system, this paper expounds how to complete image acquisition processing system functions in the FPGA.

Digital Holographic Display System with Large Screen Based on Viewing Window Movement for 3D Video Service

A holographic display system with a 22-inch LCD panel is developed to provide a wide viewing angle and large holographic 3D image. It is realized by steering a narrow viewing window resulting from a very large pixel pitch compared to the wave length of the laser light. Point light sources and a lens array make it possible to arbitrarily control the position of the viewing window for a moving observer. The holographic display provides both eyes of the observer with a holographic 3D image using two vertically placed LCD panels and a beam splitter to support the holographic stereogram.