Effective selection of the optimal virtual reality (VR) lens interval of VR devices using the test patterns of the different shapes for the left and right eyes

2021 ◽  
Author(s):  
Hyungoo Kang ◽  
Hyungki Hong
Keyword(s):  
Virtual Reality ◽  
Effective Selection ◽  
Different Shapes ◽  
Left And Right ◽  
Selection Of

CIVIL GOVERNOR M.M. OREUS IN THE SERVICE IN THE VYBORG (FINLAND) PROVINCE IN 1799–1804

2021 ◽  
Vol 10 (1) ◽  
pp. 39-46
Author(s):  
T.V. BOGDANOVA ◽  
Keyword(s):  
Russian Empire ◽  
Management Problem ◽  
Effective Mechanism ◽  
Important Condition ◽  
Emergency Situations ◽  
Effective Selection ◽  
History Of ◽  
The Government ◽  
The Russian Empire ◽  
Selection Of

The purpose of the article is to review the activities of the civil governor M.M. Oreus in the service in the Vyborg (Finland) province in 1799–1804. The guarantee of an effective mechanism of admin-istration creation as for over than 200-year period of the Russian Empire existence, as for modern conditions, it was and still is the effectiveness of the government policy on the ground. Based on this key task, the most important condition for its implementation at different stages of the development of the country was the effective selection of personnel for the post of a governor. It was the governor responsible for everything happened in his province, and the government expected him to under-stand the tasks assigned to him and take definite steps to solve them. The urgent management problem in these conditions was the strength of administrative resources capable of retaining their effective power in cases of emerging extraordinary situations, including which, will be discussed in this article. Emergency situations in the border areas occurred regularly and required the ob-servance of certain administrative traditions that influenced the success of the governor's initiatives in state tasks implementation. It will be all the more important to consider the history of the life and activities of one of the governors of the Finland (Vyborg) province, Maxim Maksimovich Oreus, who was at the head of this territory from December 14, 1799 to April 9, 1804.

scholarly journals A Chemometrics-driven Strategy for the Bioactivity Evaluation of Complex Multicomponent Systems and the Effective Selection of Bioactivity-predictive Chemical Combinations

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Yoshinori Fujimura ◽  
Chihiro Kawano ◽  
Ayaka Maeda-Murayama ◽  
Asako Nakamura ◽  
Akiko Koike-Miki ◽  
...  
Keyword(s):  
Multicomponent Systems ◽  
Effective Selection ◽  
Selection Of

Implementation of Virtual Reality in Routine Bridge Inspection

2003 ◽  
Vol 1827 (1) ◽  
pp. 29-35 ◽  
Author(s):  
David V. Jáuregui ◽  
Kenneth R. White
Keyword(s):  
Virtual Reality ◽  
Easy Access ◽  
Bridge Management ◽  
Bridge Inspection ◽  
Image Creation ◽  
Bridge Inspections ◽  
Recorded Data ◽  
Media Types ◽  
Inspection Data ◽  
Selection Of

The innovative use of QuickTime Virtual Reality (QTVR) and panoramic image–creation utilities for recording field observations and measurements during routine bridge inspections is reported. A virtual reality approach provides the ability to document a bridge’s physical condition by using different media types at a significantly higher level of detail than is possible in a written bridge inspection report. Digitally recorded data can be stored on compact disc for easy access before, during, or after an inspection. The development of a QTVR bridge record consists of four major steps: selection of the camera stations, acquisition of the digital images, creation of cylindrical or cubic panoramas, and rendering of the QTVR file. Specific details related to these steps are provided, as applied to various bridge inspection projects. The potential impact of QTVR on bridge management—in which routine inspection data are a factor in making decisions regarding the future maintenance, rehabilitation, or replacement of a bridge—is discussed.

scholarly journals Penerapan K-Means Clustering Untuk Seleksi Frame Dominan Berbasis NTSC Pada Obyek Bergerak

2020 ◽  
Vol 7 (4) ◽  
pp. 745
Author(s):  
Rizka Indah Armianti ◽  
Achmad Fanany Onnilita Gaffar ◽  
Arief Bramanto Wicaksono Putra
Keyword(s):  
Feature Extraction ◽  
Video Data ◽  
Clustering Method ◽  
Data Frame ◽  
First Order ◽  
Feature Extraction And Selection ◽  
Different Shapes ◽  
Frame Set ◽  
Selection Of

<p class="Abstrak">Obyek dinyatakan bergerak jika terjadi perubahan posisi dimensi disetiap <em>frame</em>. Pergerakan obyek menyebabkan obyek memiliki perbedaan bentuk pola disetiap <em>frame-</em>nya. <em>Frame</em> yang memiliki pola terbaik diantara <em>frame</em> lainnya disebut <em>frame</em> dominan. Penelitian ini bertujuan untuk menyeleksi <em>frame</em> dominan dari rangkaian <em>frame</em> dengan menerapkan metode K-means <em>clustering</em> untuk memperoleh <em>centroid</em> dominan (<em>centroid</em> dengan nilai tertinggi) yang digunakan sebagai dasar seleksi <em>frame</em> dominan. Dalam menyeleksi <em>frame</em> dominan terdapat 4 tahapan utama yaitu akuisisi data, penetapan pola obyek, ekstrasi ciri dan seleksi. Data yang digunakan berupa data video yang kemudian dilakukan proses penetapan pola obyek menggunakan operasi pengolahan citra digital, dengan hasil proses berupa pola obyek RGB yang kemudian dilakukan ekstraksi ciri berbasis NTSC dengan menggunakan metode statistik orde pertama yaitu <em>Mean</em>. Data hasil ekstraksi ciri berjumlah 93 data <em>frame</em> yang selanjutnya dikelompokkan menjadi 3 <em>cluster</em> menggunakan metode K-Means. Dari hasil <em>clustering</em>, <em>centroid</em> dominan terletak pada <em>cluster</em> 3 dengan nilai <em>centroid</em> 0.0177 dan terdiri dari 41 data <em>frame</em>. Selanjutnya diukur jarak kedekatan seluruh data <em>cluster</em> 3 terhadap <em>centroid</em>, data yang memiliki jarak terdekat dengan <em>centroid</em> itulah <em>frame</em> dominan. Hasil seleksi <em>frame</em> dominan ditunjukkan pada jarak antar <em>centroid</em> dengan anggota <em>cluster</em>, dimana dari seluruh 41 data frame tiga jarak terbaik diperoleh adalah 0.0008 dan dua jarak bernilai  0.0010 yang dimiliki oleh <em>frame</em> ke-59, ke-36 dan ke-35.</p><p class="Abstrak"> </p><p class="Abstrak"><em><strong>Abstract</strong></em></p><p class="Abstract"><em>The object is declared moving if there is a change in the position of the dimensions in each frame. The movement of an object causes the object to have different shapes in each frame. The frame that has the best pattern among other frames is called the dominant frame. This study aims to select the dominant frame from the frame set by applying the K-means clustering method to obtain the dominant centroid (the highest value centroid) which is used as the basis for the selection of dominant frames. In selecting dominant frames, there are 4 main stages, namely data acquisition, determination of object patterns, feature extraction and selection. The data used in the form of video data which is then carried out the process of determining the pattern of objects using digital image processing operations, with the results of the process in the form of an RGB object pattern which is then performed NTSC-based feature extraction using the first-order statistical method, Mean. The data from feature extraction are 93 data frames which are then grouped into 3 clusters using the K-Means method. From the results of clustering, the dominant centroid is located in cluster 3 with a centroid value of 0.0177 and consists of 41 data frames. Furthermore, the proximity of all data cluster 3 to the centroid is measured, the data having the closest distance to the centroid is the dominant frame. The results of dominant frame selection are shown in the distance between centroids and cluster members, where from all 41 data frames the three best distances obtained are 0.0008, 0.0010, and 0.0010 owned by 59th, 36th and 35th frames.</em></p><p class="Abstrak"><em><strong><br /></strong></em></p><p> </p>

scholarly journals Effective Selection of Resources for Construction using Program Tool

2020 ◽  
Vol 9 (3) ◽  
pp. 2927-2931
Keyword(s):  
Construction Industry ◽  
Resource Selection ◽  
Construction Projects ◽  
Cost Overrun ◽  
Cost Performance ◽  
Programming Tool ◽  
Effective Selection ◽  
Selection Factor ◽  
Selection Of ◽  
Indian Scenario

In the Indian scenario construction industry facing a major problem is cost and time overrun. Effective time performance and cost performance are very important to execute the project in a successful manner by keeping them within the prescribed schedule and cost. Overall cost and duration of construction projects affected by the effective resource selection factor. This paper's objective is to rectify the improper selection of resources by a programming tool. Field survey and codebook study did collect the needed data to feed in the programming tool. The prepared tool gets distributed and making to access by every stakeholder of construction projects. This may result in the selection of construction resources as effectively. The term cost overrun in the resource part will be reduced.

scholarly journals Analysis of Methods of Effective Selection of Investment Projects for Metallurgical Enterprises

2018 ◽  
pp. 61-71
Author(s):  
Natalya Podgornaya ◽  
◽  
Larisa Motchenko ◽  
Viktoriya Chumachenko ◽  
◽  
...  
Keyword(s):  
Investment Projects ◽  
Effective Selection ◽  
Selection Of

Effective selection of Proteus mirabilis clones producing mirabilicin D-52

1975 ◽  
Vol 21 (8) ◽  
pp. 1166-1171
Author(s):  
Anna S. Tikhonenko ◽  
Nina N. Belyaeva ◽  
Iraida A. Bespalova
Keyword(s):  
Electron Microscopy ◽  
Proteus Mirabilis ◽  
Effective Selection ◽  
Uv Induction ◽  
Selection Of

From a defective-lysogenic Proteus mirabilis strain we isolated several clones differing in the pattern of their growth on agar plates. Using electron microscopy we have shown some of the selected clones to be efficient in producing mirabilicin D-52 after UV induction, while other clones produced defective mirabilicin polysheaths and polycores. Clones producing polysheaths and polycores can be detected electron microscopically only, since these defective particles are biologically inactive.

Effect of the Polaris Loop ureteral stent on vesicoureteral reflux and relief of lumbago symptoms: a single-center study

2020 ◽  
Author(s):  
Wei Yan ◽  
Ludong Qiao ◽  
Zhen Du ◽  
Di Guan ◽  
Hao Ping ◽  
...  
Keyword(s):  
Vesicoureteral Reflux ◽  
Ureteral Stent ◽  
Patient Comfort ◽  
Single Center ◽  
Ureteroscopic Lithotripsy ◽  
Single Center Study ◽  
Vas Scores ◽  
Left And Right ◽  
Placement Technique ◽  
Selection Of

Abstract Objective To verify the effect of the Polaris Loop ureteral stent on vesicoureteral reflux and relief of lumbago symptoms in patients after ureteroscopic procedures. Methods This was a prospective single-center analysis of 20 patients who received indwelling bilateral ureteral stents after undergoing ureteroscopic lithotripsy. The Polaris Loop stent and Polaris Ultra stent (both F6 and 26 cm) were implanted randomly on the left and right sides of a patient. The results of the visual analogue scale (VAS) of the symptoms of lumbar discomfort that occurred within 2 weeks after surgery and whether or not vesicoureteral reflux occurred during postoperative cystography were recorded. Results The differences between the VAS scores and rates of vesicoureteral reflux for the 2 types of stents were significant (p<0.05). The patients receiving the Polaris Loop stent had lower VAS scores and lower rates of vesicoureteral reflux than the patients receiving the Polaris Ultra stent. Conclusions The Polaris Loop stent led to improved patient comfort after ureteroscopy and prevented vesicoureteral reflux of urine. However, careful selection of the appropriate length of stent and appropriate placement technique is required.

A Trust Model for Effective Selection of Sellers

2013 ◽  
Vol 12 (14) ◽  
pp. 2780-2784
Author(s):  
Jun Hu ◽  
Zhen Ning ◽  
Xinzhou Lu ◽  
Shuai Hao
Keyword(s):  
Trust Model ◽  
Effective Selection ◽  
Selection Of

scholarly journals Development and validation of a virtual reality transrectal ultrasound guided prostatic biopsy simulator

2013 ◽  
Vol 5 (1) ◽  
pp. 19 ◽  
Author(s):  
Venu Chalasani ◽  
Derek W. Cool ◽  
Shi Sherebrin ◽  
Aaron Fenster ◽  
Joseph Chin ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Construct Validity ◽  
Transrectal Ultrasound ◽  
Face Validity ◽  
Imaging Data ◽  
Prostatic Biopsy ◽  
Validity Testing ◽  
Left And Right ◽  
The Right ◽  
Development And Validation

Objective: We present the design, reliability, face, content andconstruct validity testing of a virtual reality simulator for transrectalultrasound (TRUS), which allows doctors-in-training to performmultiple different biopsy schemes.Methods: This biopsy system design uses a regular “end-firing”TRUS probe. Movements of the probe are tracked with a micromagneticsensor to dynamically slice through a phantom patient’s3D prostate volume to provide real-time continuous TRUS views.3D TRUS scans during prostate biopsy clinics were recorded.Intrinsic reliability was assessed by comparing the left side of theprostate to the right side of the prostate for each biopsy. A contentand face validity questionnaire was administered to 26 doctors toassess the simulator. Construct validity was assessed by comparingnotes from experts and novices with regards to the time taken andthe accuracy of each biopsy.Results: Imaging data from 50 patients were integrated into thesimulator. The completed VR TRUS simulator uses real patientimages, and is able to provide simulation for 50 cases, with ahaptic interface that uses a standard TRUS probe and biopsy needle.Intrinsic reliability was successfully demonstrated by comparingresults from the left and right sides of the prostate. Face andcontent validity respondents noted the realism of the simulator,and its appropriateness as a teaching model. The simulator wasable to distinguish between experts and novices during constructvalidity testing.Conclusions: A virtual reality TRUS simulator has successfully beencreated. It has promising face, content and construct validity results.

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