invented ultrasound

, Liverfun, EKG, Bwaves, Bloodpressure, bloodtest; Define a system default check package "Entrance Examination" Healthcheckset SetA; Save all medical items listIV: Initialize all medical items saved in AllItems Initialize check item drop-down box value public void Inititems () {height = new Healthcheckitem ("Height", 5, "for height check"); Weight = new Healthcheckitem ("Weight", 5, "for weight checking."); Sight = new Healthcheckitem ("Vi

three-dimensional observation equipmentThe design of the graphic monitor showing three-dimensional scene uses the technique of reflecting CRT image from the vibration of the flexible mirror. The operating principle of this type of system is shown in 2.16. The focal length is changed when the zoom reflector vibrates. These vibrations are synchronized with the display of objects on the CRT. Therefore, each point on the object is reflected from the mirror to the space position, corresponding to the

length of return.5. According to the sound in the air speed of 344 m/s, the measured distance can be calculated.To learn and apply sensors, it is critical to learn to understand the timing diagram of a sensor, so let's take a look at the timing trigger diagram of hc-sr04.Let's analyze this time series diagram, start the Hc-rs04 ranging module by the trigger signal, that is, the host to send at least 10us high level, trigger Hc-rs04, the module internal signal is the sensor automatically respond

This is the original link: http://www.hejizhan.com/html/xueke/140/Download for your needs.History of Physics (26)Theoretical Physics (506)... (5)Mathematical Physics (79)Relativity and gravitational field (94)... (19)Special relativity (26)General relativity (49)Quantum Mechanics (280)... (202)Advanced Quantum Mechanics (21)Quantum field theory (45)Quantum electrodynamics (12)Statistical physics (48)Acoustics (45)... (25)Physical Acoustics (3)Nonlinear Acoustics (4)

(Bioengineering data visualization tool)Amira is able to identify the sources and types of data for life sciences and biomedicine, including: optical and electron microscopy, ct,mr,pet,spect, ultrasound, engineeringand surface modeling tools, protein databases and molecular simulations, as well as various physical measurements and simulations. When multidimensional data needs to be visualized and explored, Amira provides an extremelyA rich set of pow

. Since the hepatitis B five Positive is the unstable period of hepatitis B, it is advisable to regularly check liver function, liver b - ultrasound and HBV DNA, In order to comprehensive examination results, according to the condition of the doctor under the guidance of the use of appropriate treatment measures to avoid recurrence of the disease, to bring greater harm to health. Hepatitis B before vaccination should be tested under the hepatitis B f

Introduction and comparison of common audio protocols for conference TV white PaperFirst, the digital audio principle: The sound is actually a kind of energy wave, therefore also has the frequency and the amplitude characteristic, the frequency corresponds to the time axis, the amplitude corresponds to the level axis. Usually the ear can be heard in the frequency of 20Hz to 20KHz of sound waves known as audible, less than 20Hz to become infrasound, higher than 20KHz for

last is to locate, the arm can clamp the nut, the arm moved to the top of the nut, a bit like missile guidance, arm side to move side to see, calibration position, put the clip in the nut is just below, and then down, tightly clamped, of course, clamp more tightly can also be precisely controlled, and the current mechanical arm clamping force is fixed. In fact, positioning technology can also be used radar technology, radar is actually emitting radio waves, electromagnetic waves, and then recei

Sony has developed somatosensory control technology for more than 10 years, and in the past years has been experimenting with various technologies such as 3D cameras, ultrasound and electromagnetic induction, and finally considered the most appropriate technology for the current move. PS move was introduced by Sony in September 2010 to allow the PS3 host to have a dynamic sensing function controller. He uses the dynamic controller (handle) and the PS

provided. AcpidThe ACPI (Advanced Configuration and Power Interface) service is a Power management Interface. We recommend that you enable it for all notebook users. Some servers may not need acpi. Common operations supported include: "Power Switch", "battery monitoring", "notebook Lid switch", "laptop display brightness", "sleep", "Hanging Up", and so on. Anacron, atd, crondThere is a small difference between these scheduling programs. We recommend that you enable cron. if your computer runs f

Article title: linux system services. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Service -------- Function 　　 Alsasound -------- Alsa sound card driver support. The Alsa sound card driver was originally designed for a sound card Gravis UltraSound (G The program was proven to be excellent, so the author began t

processes to run based on your needs. View the services of the daemon that can be provided by the system. Run the following command as root: # Ntsysv The window shown in interface 1 describes the functions of various system services in detail. In alphabetical order: 1. Introduction to the Linux daemon 1. alsasound: the Alsa audio card driver daemon. The Alsa sound card driver was originally written for a sound card Gravis UltraSound (GUS). The pr

burnsRefers to the whole body skin above 20% receives Ⅲ degree burns. However, burns caused by the insured's own actions do not fall under the severe burns referred to in these terms.Ix. acute or subacute severe hepatitisRefers to the liver tissue diffuse necrosis caused by hepatitis virus infection, leading to acute liver failure, and confirmed by serological or viral examination, and must meet all the following conditions:1. Severe jaundice or jaundice increases rapidly;2. Hepatic encephalopa

higher fetal protein a liver cancer?AFP is indeed an important indicator of the diagnosis of liver cancer, but not as long as the occurrence of AFP positive, can be diagnosed as liver cancer. The diagnosis of liver cancer must be dynamic observation of the changes in the content of AFP, if 1 consecutive months, the detection of AFP content has been greater than 400μg/l, it should be highly suspected of liver cancer, combined with imaging examination (b-ultr