The Assessment of Cranio-facial Angles Using Polarized Light

1979 ◽  
Vol 6 (4) ◽  
pp. 177-181
Author(s):  
C. J. Minors
Keyword(s):  
Polarized Light ◽  
Sufficient Accuracy ◽  
New Method ◽  
Preliminary Results ◽  
Further Development

A technique is described for measuring various angles used in orthodontic cephalometry without the use of radiography. This new method utilizes the properties of polarized light to transfer the data required from the patient to the apparatus, where it is stored and displayed electronically. Some preliminary results indicate that the method is potentially of sufficient accuracy to merit further development.

EVOLUTION OF SANDY BEACH IN THE CITY OF VARNA

2017 ◽  
Author(s):  
Dachev Veliko Z ◽  
Dachev Veliko Z
Keyword(s):  
Retrospective Review ◽  
Anthropogenic Impact ◽  
Sandy Beach ◽  
New Method ◽  
Coastal Protection ◽  
Area Growth ◽  
Long Time ◽  
The City ◽  
Further Development ◽  
Beach Volume

The article represents a retrospective review of long time research of genesis and development of the Central beach in the City of Varna which makes possible a forecast of its further development. Both natural and anthropogenic impact on the beach evolution is taken into consideration. It is ascertained that construction of coastal protection structures at the northern part of the beach in 80’s resulted in cessation of natural beach area growth. The strengthen of a breakwater in the main port and illegal building also contributed to considerable coast recession and beach volume reducing. Because of this a recreational potential of the Central beach is gradually decreasing. New method named “cross-shore sediment bypassing” is suggested to reduce the negative trend.

EVOLUTION OF SANDY BEACH IN THE CITY OF VARNA

2017 ◽  
Author(s):  
Dachev Veliko Z ◽  
Dachev Veliko Z
Keyword(s):  
Retrospective Review ◽  
Anthropogenic Impact ◽  
Sandy Beach ◽  
New Method ◽  
Coastal Protection ◽  
Area Growth ◽  
Long Time ◽  
The City ◽  
Further Development ◽  
Beach Volume

The article represents a retrospective review of long time research of genesis and development of the Central beach in the City of Varna which makes possible a forecast of its further development. Both natural and anthropogenic impact on the beach evolution is taken into consideration. It is ascertained that construction of coastal protection structures at the northern part of the beach in 80’s resulted in cessation of natural beach area growth. The strengthen of a breakwater in the main port and illegal building also contributed to considerable coast recession and beach volume reducing. Because of this a recreational potential of the Central beach is gradually decreasing. New method named “cross-shore sediment bypassing” is suggested to reduce the negative trend.

Height-dependent meteor temperatures and comparisons with lidar and OH measurements

2007 ◽  
Vol 85 (2) ◽  
pp. 173-187 ◽  
Author(s):  
W K Hocking ◽  
P S Argall ◽  
R P Lowe ◽  
R J Sica ◽  
H Ellinor
Keyword(s):  
Good Accuracy ◽  
Sufficient Accuracy ◽  
New Method ◽  
Precise Knowledge ◽  
Rayleigh Lidar ◽  
Sky Conditions

A new method is introduced that allows meteor radars to potentially produce height-dependent temperatures, rather than simply averages over the meteor region. The method is applied to data from the Clovar radar, near London, Ontario, and then a three-way comparison between Rayleigh lidar temperatures, hydroxyl temperatures, and meteor temperatures is undertaken. The three methods prove to be complementary. The OH measurements have good accuracy, but suffer slightly from lack of precise knowledge about their height and the fact that they are effectively integrated over the depth of the OH layer. The lidar temperatures are measured at well-defined altitudes and have better accuracy than the meteor method. The meteor temperatures have the largest errors, but still provide sufficient accuracy for many types of atmospheric studies, and have the advantage that these measurements can be made 24 h a day and in all sky conditions (including during cloud and strong sunlight and moonlight). The measurements from these instruments are complementary in that they are useful for studying the temperature on different time and altitude scales. PACS No.: 94.10.Dy

Hydration status measurement by radio frequency absorptiometry in young athletes—a new method and preliminary results

2003 ◽  
Vol 25 (1) ◽  
pp. 51-59 ◽  
Author(s):  
Daniel S Moran ◽  
Yuval Heled ◽  
Menachem Margaliot ◽  
Yoav Shani ◽  
Arie Laor ◽  
...  
Keyword(s):  
Radio Frequency ◽  
New Method ◽  
Hydration Status ◽  
Young Athletes ◽  
Preliminary Results

scholarly journals Polarization Controlled Dual Functional Reflective Planar Metalens in Near Infrared Regime

Coatings ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 389 ◽  
Author(s):  
Yuhui Zhang ◽  
Bowei Yang ◽  
Zhiying Liu ◽  
Yuegang Fu
Keyword(s):  
Near Infrared ◽  
Polarized Light ◽  
New Method ◽  
Dual Functional ◽  
Light Manipulation ◽  
Reflected Light ◽  
Polarization States ◽  
Dual Functions

The metalens has been a hotspot in scientific communications in recent years. The polarization-controlled functional metalens is appealing in metalens investigation. We propose a metalens with dual functions that are controlled by polarization states. In the first design, when applied with x- and y-polarized light, two focal spots with different focal lengths are acquired, respectively. The proposed metalens performs well when illuminated with adjacent wavelengths. In the second design, the reflected light is focused when applied with x-polarized light, and when applied with y-polarized light, the reflected light is split into two oblique paths. We believe that the results will provide a new method in light manipulation.

scholarly journals Further observations on slip-bands in metallic fractures.—Preliminary note.

1905 ◽  
Vol 74 (497-506) ◽  
pp. 557-562 ◽  
Author(s):  
Walter Rosenhain ◽  
James Alfred Ewing
Keyword(s):  
Plastic Yielding ◽  
Micro Structure ◽  
Preliminary Note ◽  
True Nature ◽  
Iron And Steel ◽  
Preliminary Results ◽  
Slip Bands ◽  
Novel Method ◽  
Oblique Illumination ◽  
Further Development

The main purpose of the present paper is to describe what the author believes to be a novel method of investigating the micro-structure of metals, and to give some account of preliminary results obtained by its aid. The method was devised in order to throw further light on the true nature of slip-bands, and the preliminary results relate mainly to this question. The investigation described in this paper is thus a further development of researches carried out in the first place by Professor J. A. Ewing, F. R. S. and the author jointly (“The Crystalline Structure of Metals,” Bakerian Lecture, 1899), and subsequently by the present author alone (“The Plastic Yielding of Iron and Steel.”) In the course of correspondence on the latter paper, M. F. Osmond drew the attention of the author to certain experimental facts concerning the behaviour of slip-bands under oblique illumination, which had formerly escaped attention.

Towards a new method for improving clinical homœopathy

1992 ◽  
Vol 81 (03) ◽  
pp. 120-126 ◽  
Author(s):  
R.A. Van Haselen ◽  
Peter Fisher
Keyword(s):  
Rheumatoid Arthritis ◽  
Information Technology ◽  
Clinical Experience ◽  
Clinical Assessment ◽  
New Method ◽  
Clinical Classification ◽  
Preliminary Results ◽  
Future Developments

AbstractMost prescribing indications in homœopathy are derived from clinical experience. There is a need to revise and update them. A new method known as systematic outcome correlation, which correlates outcome as measured by a standard clinical assessment, with prescription, is described. The method uses information technology and the Read clinical classification. Preliminary results in rheumatoid arthritis are presented. The method and results are critically examined with recommendations for future developments.

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