1, with different references.
The difference between citation and reference is that citation can be understood as a confirmation or explanation of the content of a document, while reference refers to the use of a document as a reference or citation in a written document.
2. Different uses
Citing documents is found to be a kind of writing. It is mainly used in physics, chemistry, biology and other fields, and its main function is to conduct qualitative and quantitative research on matter and spatial positioning. 1973, Lauterpur and others first reported the imaging technology based on the principle of magnetic vibration.
In recent years, as a part of medical images, magnetic resonance imaging technology has been widely used in daily clinical work. In order to avoid confusion with radioisotope imaging in nuclear medicine, this technique is called magnetic resonance imaging.
Reference is a new diagnostic method, which uses the magnetic vibration signal generated by the * * * vibration of the nucleus in the magnetic field to establish the image. It is used to detect the density of hydrogen protons, the moving speed of hydrogen protons, the relaxation time of T 1, the relaxation time of T2 and various scanning parameters, which can generate MRI signals and affect the intensity of MRI signals.
3. Use different methods
According to the cited literature, the patient's bladder needs to be properly filled, which can not only be used as an anatomical sign of the surrounding organs, but also squeeze the intestinal loop out of the pelvic cavity to some extent. And remove metal foreign bodies from the body.
However, body coil, pelvic phased coil or rectal coil are used for reference examination, and T 1 weighted axial image and T2-weighted axial, coronal and sagittal three-dimensional images are used routinely. Scan sequence T, conventional se-weighted imaging, TR600ms, tel 5 ~ 20 msT2-weighted image detection fast spin echo sequence.
Brief introduction of the paper
Thesis is a Chinese word, and its pinyin is lùn wén, which is a common word in classical literature and refers to conversation or exchange of ideas.
Nowadays, papers are often used to refer to articles that conduct research in various academic fields and describe academic research results, which are referred to as papers for short. It is not only a means to discuss problems in academic research, but also a tool to describe academic research results in academic exchanges. Including academic papers, graduation papers, dissertations, scientific papers, achievement papers and so on.
On February 24th, 2020, 65438, the Sampling Method for Undergraduate Graduation Thesis (Design) (for Trial Implementation) proposed that undergraduate graduation thesis should be sampled once a year, and the sampling ratio should not be less than 2% in principle.