scholarly journals The influence of the skin tumors excision width in the postoperative facial asymmetry

2020 ◽  
Vol 77 (7) ◽  
pp. 710-714
Author(s):  
Sasa Milicevic ◽  
Aleksandar Jevtic ◽  
Nenad Stepic
Keyword(s):  
Laser Scanning ◽  
Facial Asymmetry ◽  
Skin Tumors ◽  
Skin Tumor ◽  
Procrustes Analysis ◽  
Facial Skin ◽  
Minimum Width ◽  
Direct Closure ◽  
Scanning Method ◽  
The Face

Background/Aim. Planning an elliptical excision of the facial skin, caused by lines of minimum tension, is very important in order to achieve good aesthetic results. The width of the tumor excision affects the possibility of a direct closure of the post-excision defect. The aim of the study was to determine the minimum width of excision that does not affect postoperative symmetry of the face, in relation to the preoperative one, using an objective scanning method with a line laser scanner. Methods. The study included 50 patients of both sexes, older than 50 years, who had verified facial skin tumor and established medical indication for surgical elliptical excision and direct suture. All patients had laser scanning preoperatively, and then seven days and 90 days postoperatively, giving x, y, and z coordinates of 5 cephalometric points on the face, which determined the shape of the examined region. Patients were divided into three groups depending on the width of the excision (< 10 mm, 10?15 mm, > 15 mm). The shape of the examined region among different width of excision was compared, preoperatively, 7 days and 90 days postoperatively, using Procrustes analysis and analysis of the coordinates of cephalometric points. Results. Taking into account preoperative and postoperative x, y and z coordinates of the cephalometric points, statistically significant differences between the group of patients with the width excision < 10 mm and the other two groups (excision width 10?15 mm and > 15 mm) were found. Conclusion. The width of the skin tumors excision < 10 mm does not affect the postoperative facial asymmetry when a post-excisional defect is closed by direct suture.

scholarly journals Tumor jinak kulit pada wajah

e-CliniC ◽  
2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Ferra O. Mawu
Keyword(s):  
Skin Surface ◽  
Skin Lesions ◽  
Skin Tumors ◽  
Careful Examination ◽  
Benign Tumors ◽  
Facial Skin ◽  
Skin Tag ◽  
The Face ◽  
Seborrheic Keratoses

Abstract: Benign skin tumors are commonly found in every individual. There are various benign tumors occur on the skin surface including facial skin. The main problems of these tumors are cosmetic concerns and the possibility of malignancy. Benign skin tumors frequently found on the face are inter alia seborrheic keratoses, skin tag, syringoma, nevus pigmentosus, xanthelasma, sebaceous hyperplasia, and cyst. Several benign facial skin lesions can be diagnosed clinically as long as it is supported by careful examination with good anamnesis and proper lighting. Physicians as well as specialists must have the ability to categorize and diagnose accurately the growing lesions or tumors as benign, malignant, or undetermined in order to take further step for planning and providing treatment properly.Keywords: seborrheic wart, skin tag, syringomaAbstrak: Hampir semua orang memiliki satu atau lebih tumor kulit yang pada umumnya adalah tumor jinak. Tumor jinak kulit dapat terjadi di seluruh permukaan kulit termasuk kulit wajah. Tumor kulit pada wajah umumnya menimbulkan masalah kosmetik dan kemungkinan pertumbuhan ke arah keganasan. Tumor jinak pada wajah yang sering ditemukan antara lain ialah keratosis seboroik, skin tag, siringoma, nevus pigmentosus, xantelasma, hiperplasia sebasea, dan kista. Secara klinik beberapa tumor jinak kulit pada wajah dapat langsung terdiagnosis, dengan syarat pemeriksaan dilakukan dengan teliti, mulai dari anamnesa sampai pemeriksaan fisik yang dilakukan di bawah penerangan yang baik. Dokter atau dokter ahli harus mampu mengategorikan tumor kulit sebagai tumor jinak/benigna, ganas/maligna, atau tidak jelas, sehingga kemungkinan penatalaksanaan dapat ditetapkan.Kata kunci: keratosis seboroik, skin tag, siringoma

Measurement of erosion state and refractory lining thickness of blast furnace hearth by using three-dimensional laser scanning method

2020 ◽  
Vol 118 (1) ◽  
pp. 106
Author(s):  
Lei Zhang ◽  
Jianliang Zhang ◽  
Kexin Jiao ◽  
Guoli Jia ◽  
Jian Gong ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Laser Scanning ◽  
Refractory Lining ◽  
Three Dimensional ◽  
3D Laser Scanning ◽  
Scanning Method ◽  
Blast Furnace Production ◽  
Severe Erosion ◽  
Residual Thickness ◽  
Minimum Depth

The three-dimensional (3D) model of erosion state of blast furnace (BF) hearth was obtained by using 3D laser scanning method. The thickness of refractory lining can be measured anywhere and the erosion curves were extracted both in the circumferential and height directions to analyze the erosion characteristics. The results show that the most eroded positions located below 20# tuyere with an elevation of 7700 mm and below 24#–25# tuyere with an elevation of 8100 mm, the residual thickness here is only 295 mm. In the circumferential directions, the serious eroded areas located between every two tapholes while the taphole areas were protected well by the bonding material. In the height directions, the severe erosion areas located between the elevation of 7600 mm to 8200 mm. According to the calculation, the minimum depth to ensure the deadman floats in the hearth is 2581 mm, corresponding to the elevation of 7619 mm. It can be considered that during the blast furnace production process, the deadman has been sinking to the bottom of BF hearth and the erosion areas gradually formed at the root of deadman.

Pengoptimalan Air Leri dalam Pembuatan Sabun Pembersih Wajah Alami yang Ekonomis

2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Rahmawati Rahmawati ◽  
Trimayasari Trimayasari ◽  
Ghozali Akhmad Mustaqim ◽  
Wening Dwi Prastiwi ◽  
Emas Agus Prastyo Wibowo
Keyword(s):  
Amino Acids ◽  
Fine Particles ◽  
Hard Water ◽  
Essential Amino Acids ◽  
Ultraviolet Rays ◽  
Starch Granules ◽  
Facial Skin ◽  
Skin Cells ◽  
The Face ◽  
Made In

AbstractSoap facial cleanser is needed to keep the facial skin to keep them clean and healthy. The purpose of this study to make soap cleanser with natural materials such as hard water deposits leri. This is because the use of leri water starch or starch granules of fine particles contained in water leri dansel dust can shed the dead skin on the face because of the essential amino acids contained can regenerate skin cells. In addition, water leri can brighten the face because the leri water oryzanol contain substances that can update the development and formation of the pigment melanin, which is effectively to ward off ultraviolet rays. The process of making soap using the principle of saponification reaction, namely the reaction between the oil and the KOH/NaOH. Facial cleansing soap made in this study is solid soap. Based on the results of quality test, soap solid leri water has a pH of 11.1, saponification number is 33, the water content of 46% as well as respondents to the test aspects of aroma and foam shows good results so this water leri treatment can be an alternative solution to prevent the use of soap facial cleansers that contain harmful chemicals. Keywords: air leri, soap cleanser, saponification  AbstrakSabun pembersih wajah sangat diperlukan untuk menjaga kulit wajah agar tetap bersih dan sehat. Tujuan dari penelitian ini untuk membuat sabun pembersih wajah dengan bahan alami berupa endapan air leri. Penggunaan air leri ini dikarenakan butiran partikel starch atau pati halus yang terdapat dalam air leri dapat merontokkan debu dansel kulit mati pada wajah karena asam amino esensial yang terkandung dapat meregenerasi sel-sel kulit. Selain itu, air leri dapat mencerahkan wajah karena air leri mengandung zat oryzanol yang dapat memperbarui perkembangan dan pembentukan pigmen melanin, yang efektif guna menangkal sinar ultraviolet. Proses pembuatan sabun menggunakan prinsip reaksi saponifikasi, yaitu reaksi antara minyak dan KOH/NaOH. Sabun pembersih wajah yang dibuat dalam penelitian ini ialah sabun padat. Berdasarkan hasil uji mutu, sabun air leri padat memiliki pH 11,1, angka penyabunan sebesar 33 kadar air 46 kadar air 46 % serta uji responden terhadap aspek aroma dan busa yang menunjukkan hasil cukup baik sehingga pengolahan air leri ini dapat menjadi solusi alternative untuk mencegah penggunaan sabun pembersih wajah yang mengandung bahan kimia berbahaya. Kata kunci: air leri, sabun pembersih wajah, saponifikasi 

scholarly journals DTM-based analysis of the spatial distribution of topolineaments

2020 ◽  
Vol 12 (1) ◽  
pp. 1185-1199
Author(s):  
Mirosław Kamiński
Keyword(s):  
Laser Scanning ◽  
Digital Terrain Model ◽  
Research Area ◽  
Tectonic Structures ◽  
Empirical Bayesian ◽  
Scanning Method ◽  
Empirical Bayesian Kriging ◽  
Terrain Model ◽  
Digital Terrain ◽  
Airborne Laser

AbstractThe research area is located on the boundary between two Paleozoic structural units: the Radom–Kraśnik Block and the Mazovian–Lublin Basin in the southeastern Poland. The tectonic structures are separated by the Ursynów–Kazimierz Dolny fault zone. The digital terrain model obtained by the ALS (Airborne Laser Scanning) method was used. Classification and filtration of an elevation point cloud were performed. Then, from the elevation points representing only surfaces, a digital terrain model was generated. The model was used to visually interpret the course of topolineaments and their automatic extraction from DTM. Two topolineament systems, trending NE–SW and NW–SE, were interpreted. Using the kernel density algorithm, topolineament density models were generated. Using the Empirical Bayesian Kriging, a thickness model of quaternary deposits was generated. A relationship was observed between the course of topolineaments and the distribution and thickness of Quaternary formations. The topolineaments were compared with fault directions marked on tectonic maps of the Paleozoic and Mesozoic. Data validation showed consistency between topolineaments and tectonic faults. The obtained results are encouraging for further research.

scholarly journals Appearance-related psychosocial distress following facial skin cancer surgery using the FACE-Q Skin Cancer

2019 ◽  
Vol 311 (9) ◽  
pp. 691-696
Author(s):  
Toral S. Vaidya ◽  
Shoko Mori ◽  
Stephen W. Dusza ◽  
Anthony M. Rossi ◽  
Kishwer S. Nehal ◽  
...  
Keyword(s):  
Skin Cancer ◽  
Psychosocial Distress ◽  
Cancer Surgery ◽  
Facial Skin ◽  
The Face ◽  
Skin Cancer Surgery

INVESTIGATION OF BIAXIAL ELASTIC MODULUS AND CTE OF BaTiO3 FILMS

2009 ◽  
Vol 23 (24) ◽  
pp. 4933-4941
Author(s):  
GUI-FANG HUANG ◽  
WEI-QING HUANG ◽  
LING-LING WANG ◽  
ZHONG XIE ◽  
BING-SUO ZOU ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Thermal Cycle ◽  
Laser Scanning ◽  
Stress Measurement ◽  
Coefficient Of Thermal Expansion ◽  
Bulk Material ◽  
Good Reliability ◽  
Scanning Method ◽  
As Stress

To develop high-quality film device with good reliability, it is often essential to be able to evaluate the parameters such as stress, the biaxial elastic modulus, and coefficient of thermal expansion (CTE) of film. Based on the stress measurement in situ during the thermal cycle by laser scanning method, two techniques were used to measure the biaxial elastic modulus and CTE of BaTiO 3 films deposited on substrate. The value of the biaxial elastic modulus and CTE for BaTiO 3 films determined from two methods is close, in which the biaxial elastic modulus of BaTiO 3 films is higher than that of corresponding bulk while the CTE of BaTiO 3 films is a little smaller than that of bulk material.

scholarly journals Geodetic and Architectural Inventory of the Historic Wooden Church of St. Szczepan in Mnichów (Poland) in Terms of Safety Assessment of the Geometric Condition of the Structure.

2020 ◽  
Author(s):  
Tomasz Lipecki
Keyword(s):  
Laser Scanning ◽  
Structural Changes ◽  
18Th Century ◽  
Good Condition ◽  
Geometric Condition ◽  
Mining Operations ◽  
Destructive Effect ◽  
Scanning Method ◽  
3D Solid ◽  
The Church

Abstract The article concerns the method of architectural inventory of the historic, wooden church in Mnichów (southern Poland), built in the 18th century. During hundreds of years of operation, structural changes can be seen in it, as well as in objects located above mining operations. The article explains the principles of inventory and describes the applied method of laser scanning, starting from the design to the creation of a 3D solid model of the object, paying particular attention to the analysis based on the created point cloud. Thanks to them, the area and volumes of all rooms were determined, the verticality of columns supporting the church levels was assessed, the floor level and verticality of walls were determined, as well as the shape and level of the roof edges. Based on the research, it can be concluded that the church, as an example of a wooden religious monument, is in good condition. The detected deformations in this range do not have a destructive effect on the current state of the object, but it should be subjected to control measurements in a cyclical manner. The laser scanning method used allowed for a wide and accurate scope of the study of the geometry of the church structure, without the need to disorganize its equipment.

scholarly journals Simulation of the preparation and face drilling processes with laser scanning and automated marking of the drilling grid

2020 ◽  
Vol 177 ◽  
pp. 01010 ◽  
Author(s):  
Evgeniya Volkova ◽  
Aleksey Druzhinin ◽  
Roman Kuzminykh ◽  
Vladimir Poluzadov
Keyword(s):  
Software Development ◽  
Laser Scanning ◽  
3D Model ◽  
Drilling Process ◽  
Interpolation Algorithm ◽  
Laser Rangefinder ◽  
Bilinear Interpolation ◽  
The Face ◽  
Polygonal Model ◽  
Grid Based

The article discusses the methods of calculating the drilling and blasting scheme and constructing a drilling grid, manual and automatic calculation options are compared. A method for automatically constructing a drilling grid based on laser scanning is proposed. Moreover, the proposed method can be implemented using cheap equipment - a laser rangefinder and an Arduino microcomputer. Based on the data of the laser rangefinder with openCV and SciPy libraries, a polygonal 3D model of the face is built. The transfer of the drilling grid to the 3D model is implemented using the bilinear interpolation algorithm. The constructed polygonal model can be improved by making changes to the construction algorithm, since it is developed by the authors and can be further developed. The simulation model is created in Anylogic software and shows the drilling process taking into account the previously calculated drilling pattern. The proposed models can be used as a basis for further research and software development.

scholarly journals DEFORMATION MONITORING OF RETROFITTED SHORT CONCRETE COLUMNS WITH LASER SENSOR

2016 ◽  
Vol XLI-B5 ◽  
pp. 765-769
Author(s):  
E. Ö. Avsar ◽  
M. F. Celik ◽  
E. Binbir ◽  
A. E. Arslan ◽  
D. Çokkeçeci ◽  
...  
Keyword(s):  
Laser Scanning ◽  
Reference Sample ◽  
Experimental Studies ◽  
Construction Materials ◽  
Mechanical Tests ◽  
Deformation Monitoring ◽  
Laser Sensor ◽  
Scanning Method ◽  
Compression Load ◽  
Short Columns

This paper presents one of the applications of monitoring mechanical tests carried out in Construction Materials Laboratory of Istanbul Technical University. In Turkey, as in many countries, large amount of existing buildings exposed to seismic hazard, therefore various analytical and experimental studies are being conducted to contribute to the solution of the problem. One of the new generation retrofitting techniques is to strength the structural members by using Fiber Reinforcing Polymer (FRP). This study summarize the results of monitoring of deformations short concrete column samples under the incremental compression load. In this study, result of two rectangular short columns are given. One of them was tested as a reference sample, the other sample were tested after strengthening by PET reinforced polymer composite materials. Besides conventional displacement and strain measurement systems, laser scanning method was used to get three dimensional deformed shape of sample at each selected steps.

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