scholarly journals Effects of Eutypella Canker and Sugar Maple Borer on Merchantable Volume Loss in Sugar Maple

1997 ◽  
Vol 14 (1) ◽  
pp. 26-31 ◽  
Author(s):  
Paul E. Sendak ◽  
James R. Bove ◽  
Dale R. Bergdahl ◽  
Donald R. Tobi ◽  
Neil K. Huyler
Keyword(s):  
Visual Inspection ◽  
Sugar Maple ◽  
Low Cost ◽  
Control Program ◽  
Volume Loss ◽  
Management Planning ◽  
North Central ◽  
Two Agents ◽  
Silvicultural Practices ◽  
Intensive Control

Abstract Eutypella canker, caused by Eutypella parasitica and sugar maple borer, Glycobius speciosus, affect sugar maple throughout its range. This study examines the effectiveness of visual inspection for assessing timber volume loss attributable to these two agents, estimates the value of that loss on a property in north central Vermont, and discusses how land managers can include control of E. parasitica and sugar maple borer in their management planning. Visual inspection alone does not appear to be reliable for estimating volume loss. The study site had an estimated loss of 3.4% of merchantable sugar maple sawtimber volume valued at $2000. This loss was not large enough to justify an intensive control program. However, a low-cost method for controlling these two agents consists of the removal of trees with Eutypella cankers and sugar maple borer scars whenever a stand is entered for silvicultural practices. North. J. Appl. For. 14(1):26-31.

Intensive Control Program Curbs MRSA

2010 ◽  
Vol 44 (6) ◽  
pp. 16
Author(s):  
MARY ANN MOON
Keyword(s):  
Control Program ◽  
Intensive Control

scholarly journals Development of algorithms for automated detection of cervical pre-cancers with a low-cost, point-of-care, Pocket colposcope

2018 ◽  
Author(s):  
Mercy Nyamewaa Asiedu ◽  
Anish Simhal ◽  
Usamah Chaudhary ◽  
Jenna L. Mueller ◽  
Christopher T. Lam ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Visual Inspection ◽  
Point Of Care ◽  
Low Cost ◽  
Intraepithelial Neoplasia ◽  
Support Vector ◽  
Machine Model ◽  
Data Set ◽  
Automatic Feature Extraction ◽  
Lugol’S Iodine

AbstractGoalIn this work, we propose methods for (1) automatic feature extraction and classification for acetic acid and Lugol’s iodine cervigrams and (2) methods for combining features/diagnosis of different contrasts in cervigrams for improved performance.MethodsWe developed algorithms to pre-process pathology-labeled cervigrams and to extract simple but powerful color and textural-based features. The features were used to train a support vector machine model to classify cervigrams based on corresponding pathology for visual inspection with acetic acid, visual inspection with Lugol’s iodine, and a combination of the two contrasts.ResultsThe proposed framework achieved a sensitivity, specificity, and accuracy of 81.3%, 78.6%, and 80.0%, respectively when used to distinguish cervical intraepithelial neoplasia (CIN+) relative to normal and benign tissues. This is superior to the average values achieved by three expert physicians on the same data set for discriminating normal/benign cases from CIN+ (77% sensitivity, 51% specificity, 63% accuracy).ConclusionThe results suggest that utilizing simple color- and textural-based features from visual inspection with acetic acid and visual inspection with Lugol’s iodine images may provide unbiased automation of cervigrams.SignificanceThis would enable automated, expert-level diagnosis of cervical pre-cancer at the point-of-care.

KW Level Wind Turbine Wind Tracking and Yaw System

2011 ◽  
Vol 148-149 ◽  
pp. 97-100
Author(s):  
Xu Gang Wang ◽  
Guang Qi Cao ◽  
Zhi Guang Guan ◽  
Zu Yu Zhao
Keyword(s):  
Wind Turbine ◽  
Wind Power ◽  
Fossil Fuels ◽  
Control Strategies ◽  
Low Cost ◽  
Control Program ◽  
Clean Energy ◽  
New Energy ◽  
Program Flow ◽  
And Control

Wind power is an important direction of new energy, which has no pollution, no consuming fossil fuels, and no producing waste, which is widely used at this stage of clean energy. The small stand alone wind power has been paid more and more attention due to its low cost, flexible installation, strong adaptability. This paper introduces the mechanical and electrical structure, which are used in KW level stand alone mode wind turbine automatically track and yaw system. The motion rules and control strategies of the tracking and yaw system are discussed and then the control program flow is provided. The PIC16F873 chip is used as controller for this part in this system. It can fully meet the design requirements, which will reduce costs and increase the system's control ability. This system can automatically track and yaw, according to the wind direction and wind power.

The Use of Static Telemedical Applications of Cytopathology for Proficiency Testing

2013 ◽  
Vol 2 (2) ◽  
pp. 47-53 ◽  
Author(s):  
Stavros Archondakis
Keyword(s):  
Low Cost ◽  
Control Program ◽  
Needle Aspiration ◽  
Pap Smears ◽  
File Transfer ◽  
Quality Control Program ◽  
Iso 15189 ◽  
Significant Difference ◽  
Ultrasonographic Guidance ◽  
Histological Confirmation

The purpose of this study was to examine the feasibility of developing an external quality control program for cytopathology labs wishing to be accredited according to ISO 15189:2007, by using low cost telemedical applications and solutions. One hundred twenty four fine-needle aspiration specimens from patients preoperatively aspirated under ultrasonographic guidance and on 104 pap smears with histological confirmation were retrospectively selected from the department’s registry. Three diagnostic categories of cytological reports were used. Ten characteristic images from each case were transferred via file transfer protocol to password-protected accounts for re-mote review by five independent cytopathologists. In addition to diagnosis, reviewers also commented on overall digital image quality. Contributor’s and reviewer’s diagnoses were collected, recorded and statistically evaluated. No significant difference in diagnostic accuracy could be detected between the diagnoses proffered on the basis of digitized images and conventional slides.

Robotic inspection of ship hull surfaces using a magnetic crawler and a monocular camera

Sensor Review ◽  
2017 ◽  
Vol 37 (4) ◽  
pp. 425-435 ◽  
Author(s):  
Annalisa Milella ◽  
Rosalia Maglietta ◽  
Massimo Caccia ◽  
Gabriele Bruzzone
Keyword(s):  
Visual Inspection ◽  
Low Cost ◽  
New Technology ◽  
Experimental Tests ◽  
Ship Hull ◽  
Inspection System ◽  
Content Type ◽  
Monocular Camera ◽  
Mosaic Image ◽  
Automatic Visual Inspection

Purpose Periodic inspection of large tonnage vessels is critical to assess integrity and prevent structural failures that could have catastrophic consequences for people and the environment. Currently, inspection operations are undertaken by human surveyors, often in extreme conditions. This paper aims to present an innovative system for the automatic visual inspection of ship hull surfaces, using a magnetic autonomous robotic crawler (MARC) equipped with a low-cost monocular camera. Design/methodology/approach MARC is provided with magnetic tracks that make it able to climb along the vertical walls of a vessel while acquiring close-up images of the traversed surfaces. A homography-based structure-from-motion algorithm is developed to build a mosaic image and also produce a metric representation of the inspected areas. To overcome low resolution and perspective distortion problems in far field due to the tilted and low camera position, a “near to far” strategy is implemented, which incrementally generates an overhead view of the surface, as long as it is traversed by the robot. Findings This paper demonstrates the use of an innovative robotic inspection system for automatic visual inspection of vessels. It presents and validates through experimental tests a mosaicking strategy to build a global view of the structure under inspection. The use of the mosaic image as input to an automatic corrosion detector is also demonstrated. Practical implications This paper may help to automate the inspection process, making it feasible to collect images from places otherwise difficult or impossible to reach for humans and automatically detect defects, such as corroded areas. Originality/value This paper provides a useful step towards the development of a new technology for automatic visual inspection of large tonnage ships.

scholarly journals Approximating Optimal Release in a Deterministic Model for the Sterile Insect Technique

2016 ◽  
Vol 2016 ◽  
pp. 1-7
Author(s):  
Sergio Ramirez ◽  
Luis F. Gordillo
Keyword(s):  
Economic Burden ◽  
Sterile Insect Technique ◽  
Deterministic Model ◽  
Multiple Mating ◽  
Cost Benefit ◽  
Control Program ◽  
Sterile Male ◽  
Management Planning ◽  
Deep Impact ◽  
Technique Development

Cost/benefit analyses are essential to support management planning and decisions before launching any pest control program. In particular, applications of the sterile insect technique (SIT) are often prevented by the projected economic burden associated with rearing processes. This has had a deep impact on the technique development and its use on insects with long larval periods, as often seen in beetles. Under the assumptions of long adult timespan and multiple mating, we show how to find approximate optimal sterile release policies that minimize costs. The theoretical framework proposed considers the release of insects by pulses and finds approximate optimal release sizes through stochastic searching. The scheme is then used to compare simulated release strategies obtained for different pulse schedules and release bounds, providing a platform for evaluating the convenience of increasing sterile male release intensity or extending the period of control.

scholarly journals Visual inspection of cervix with acetic acid as a feasible screening test for cervical neoplasia among women attending at OPD in Rajshahi Medical College Hospital

KYAMC Journal ◽  
2018 ◽  
Vol 9 (2) ◽  
pp. 56-60
Author(s):  
Nahid Yusuf ◽  
Md Ahmed Ali ◽  
Nazmun Nahar ◽  
Shipra Chaudhury ◽  
Md Zillur Rahman
Keyword(s):  
Acetic Acid ◽  
Predictive Value ◽  
Urban Areas ◽  
Visual Inspection ◽  
Pap Smear ◽  
Low Cost ◽  
Low Grade ◽  
College Hospital ◽  
Health Care Centre ◽  
Simple Method

Background: Visual inspection of cervix after application of 3-5% acetic acid (VIA) is a potential alternative to Pap smear cytology for screening of cervical cancer in resource poor settings.Objectives: This study was to evaluate the performance of visual inspection based screening approach in the detection of precancerous and early cancerous lesions of the cervix.Materials & Methods: VIA was carried out in 540 eligible women attending Gynae OPD. Detection of well-defined, opaque, acetowhite lesion close to squamocolumnar junction or in transitional zone of the cervix constituted positive VIA. All screened women evaluated by colposcopy and biopsy were taken from colposcopically suspected areas. The final diagnosis was based on histology.Results: Out of 540 patients, 328 were VIA negative and 212 were VIA positive. Colposcopy showed normal results in 340 cases, low grade CIN in 138 cases, high grade CIN in 44 cases and cancer in 18 cases. There were biopsy proven chronic cervicitis and metaplastic changes in 423 cases, CIN I in 66 cases, CIN II in 25 cases, CIN III / carcinoma-in-situ in 5 cases. The sensitivity of VIA was 74.36%, specificity 70.45%, positive predictive value 41.04%, & negative predictive value 90.85%.Conclusion: VIA can differentiate a normal cervix from a precancerous cervix with reasonable accuracy. As it is low cost and simple method, it can be set in any hospital or any health care centre of rural or urban areas of poor resource settings.KYAMC Journal Vol. 9, No.-2, July 2018, Page 56-60

scholarly journals A Low Cost Underwater Robot with Grippers for Visual Inspection of External Pipeline Surface

2018 ◽  
Vol 133 ◽  
pp. 108-115 ◽  
Author(s):  
M. Manjunatha ◽  
A. Arockia Selvakumar ◽  
Vivek P Godeswar ◽  
R. Manimaran
Keyword(s):  
Visual Inspection ◽  
Low Cost ◽  
Underwater Robot

BEAM FORMING WITH VIBRATOR ARRAYS

Geophysics ◽  
1977 ◽  
Vol 42 (7) ◽  
pp. 1321-1338 ◽  
Author(s):  
M. E. Arnold
Keyword(s):  
Time Delays ◽  
Visual Inspection ◽  
Random Noise ◽  
Field Tests ◽  
Beam Forming ◽  
Sound Waves ◽  
North Central ◽  
Linear Arrays ◽  
Central Texas ◽  
Theoretical Advantage

Seismic field tests conducted near Tulsa, Oklahoma, and the Handy area in north‐central Texas used linear arrays of vibrators to concentrate sound waves into a beam, which is directed vertically when all vibrators operate in‐phase or at an angle from the vertical when relative time delays are introduced to each vibrator. The sound wave directivity was verified in the Tulsa area by recordings from subsurface seismometers, and at the same time reflection enhancement by wave beaming was exhibited from surface seismometers. Visual inspection and statistical analysis of reflection continuity indicated that it makes no difference in the Handy area whether beam‐forming techniques are used in the field or are applied later in processing. This result was anticipated, since previous seismic work in the Handy area indicated that the random noise level was low enough to minimize the theoretical advantage of field summing.

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