Comparison of antennas performances for COFDM DVB-T system: application to channel sounding

The effective study of biological tissues in thick slices of embedded material by high voltage electron microscopy (HVEM) requires highly selective staining of those structures to be visualized so that they are not hidden or obscured by other structures in the image. A tilt pair of micrographs with subsequent stereoscopic viewing can be an important aid in three-dimensional visualization of these images, once an appropriate stain has been found. The peroxidase reaction has been used for this purpose in visualizing the T-system (transverse tubular system) of frog skeletal muscle by HVEM (1). We have found infiltration with lanthanum hydroxide to be particularly useful for three-dimensional visualization of certain aspects of the structure of the T- system in skeletal muscles of the frog. Specifically, lanthanum more completely fills the lumen of the tubules and is denser than the peroxidase reaction product.

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The Network Parameters Of The T-System In Frog Muscle Measured With The High Voltage Electron Microscope.

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100116371 ◽

1975 ◽

Vol 33 ◽

pp. 550-551 ◽

Cited By ~ 1

Author(s):

Brenda R. Eisenberg ◽

Lee D. Peachey

Keyword(s):

Electron Microscopy ◽

Electron Microscope ◽

High Voltage ◽

Sartorius Muscle ◽

High Voltage Electron Microscopy ◽

Network Parameters ◽

Voltage Electron ◽

High Voltage Electron Microscope ◽

High Voltage Electron ◽

T System

Analysis of the electrical properties of the t-system requires knowledge of the geometry of the t-system network. It is now possible to determine the network parameters experimentally by use of high voltage electron microscopy. The t-system was marked with exogenous peroxidase. Conventional methods of electron microscopy were used to fix and embed the sartorius muscle from four frogs. Transverse slices 0.5-1.0 μm thick were viewed at an accelerating voltage of 1000 kV using the JEM-1000 high voltage electron microscope at Boulder, Colorado and prints at x5000 were used for analysis.The length of a t-branch (t) from node to node (Fig. 1a) was measured with a magnifier; at least 150 t-branches around 30 myofibrils were measured from each frog. The mean length of t is 0.90 ± 0.11 μm and the number of branches per myofibril is 5.4 ± 0.2 (mean ± SD, n = 4 frogs).

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Penerapan Kriptografi Keamanan Data Administrasi Kependudukan Desa Pagar Jati Menggunakan SHA-1

Jurnal Nasional Komputasi dan Teknologi Informasi (JNKTI) ◽

10.32672/jnkti.v3i2.2413 ◽

2020 ◽

Vol 3 (2) ◽

pp. 182-186

Author(s):

Lisnayani Silalahi ◽

Anita Sindar

Keyword(s):

System Application ◽

Data Security ◽

Hash Function ◽

Security System ◽

Cryptographic Hash Function ◽

Security Costs ◽

Encryption Method

Data security and confidentiality is currently a very important issue and continues to grow. Several cases concerning data security are now a job that requires handling and security costs that are so large. To maintain the security and confidentiality of messages, data, or information so that no one can read or understand it, except for the rightful recipients, a data security system application with an encryption method using an algorithm is designed. The SHA-1 cryptographic hash function that takes input and produces a 160-bit hash value which is known as the message iteration is usually rendered as a 40-digit long hexadecimal number.

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