Merchantable timber volume estimation using cross-sectional photogrammetric and densitometric methods

1984 ◽  
Vol 14 (6) ◽  
pp. 803-810 ◽  
Author(s):  
Gordon A. Maclean ◽  
George L. Martin
Keyword(s):  
Volume Estimation ◽  
Aerial Photographs ◽  
Volume Data ◽  
High Precision Measurement ◽  
Cross Sectional ◽  
Timber Volume ◽  
Film Density ◽  
Density Values ◽  
Independent Variable ◽  
Profile Area

A procedure is described for estimating timber volume from high-precision measurement of the cross-sectional area of a canopy profile on medium-scale vertical aerial photographs. Timber volume data were obtained from 75 data points in a study area containing several forest types, and canopy profile areas were measured with a stereoplotter at the corresponding points on the aerial photographs. Film density values were also measured along each profile using a scanning microdensitometer. Canopy profile area was found to be independent of the direction of the profile relative to the flight line of the photography. The relation between timber volume and profile area was found to be highly significant, semilogarithmic, and species dependent, with regression R2 values ranging from 0.67 to 0.79. The area under a curve obtained by plotting film density values is not sufficiently correlated with timber volume to be a significant independent variable, either alone or with profile area. However, film density information was found to be of significant value in correcting the profile areas for canopy microopenings too small to be measured with a stereoplotter. With the area of microopenings included as a separate independent variable, regression R2 values range from 0.82 to 0.88.

HUBUNGAN FAKTOR-FAKTOR INTERNAL PERAWAT DENGAN PENGETAHUAN PERAWAT TENTANG PENERAPAN STRATEGI PELAKSANAAN PADA PASIEN DENGAN GANGGUAN HALUSINASI

2018 ◽  
Vol 1 (1) ◽  
pp. 60
Author(s):  
Widya Arisandy
Keyword(s):  
Strategy Implementation ◽  
Analytic Approach ◽  
P Value ◽  
Sample Collection ◽  
Cross Sectional ◽  
Internal Factors ◽  
Is Research ◽  
Knowledge Strategy ◽  
Independent Variable ◽  
Research Nurses

Knowledge is the result of �know� and this is happening after they made a sensing towards an object certain .Sensing towards an object occur through panca human senses the sight , hearing , of smell , taste and touched with own .Knowledge about the implementation of the nurse strategy is obliged to understandable and in understand by a nurse soul .Many things can affect knowledge a nurse soul both internally and externally.Strategy the implementation of the act of nursing is a in made as a guide by a nurse if when interacting with disorder patients hallucinations.The purpose of research to know relations factors internal a nurse with knowledge nurse in the application of the implementation of the strategy in patients with disorder hallucinations in inpatient Rooms Hospital Ernaldi Bahar The Province Of South Sumatera 2017 . The kind of research done is research quantitative by using the method survey analytic approach in cross sectional .Technique the sample collection that is using a technique the sample collection total of sampling , the number of the sample are always 33 people .To research this independent variable consists of education , length of employment and the days of while dependent variable is knowledge nurse about strategy the implementation of the hallucinations . the results of this research was obtained one variable are associated than 3 variable internal factors researched namely working time with the results of p-value 0,011. Researchers hope from the results of this research , nurses can identify any factor that could affect the knowledge nurses and also can be used to understand the science of psychiatric Keywords : Nurses Knowledge, Strategy Implementation Hallucinations

Hubungan Pengetahuan Tentang Manajemen Bencana Dengan Prevention Masyarakat Dalam Menghadapi Bencana Gunung Meletus Pada Kepala Keluarga Di Rt 06/Rw 01 Dusun Puncu Desa Puncu Kecamatan Puncu-Kediri

1970 ◽  
Vol 5 (2) ◽  
pp. 01
Author(s):  
Didit Damayanti ◽  
Pria Wahyu R.G ◽  
Muhanni’ah Muhanni’ah
Keyword(s):  
Disaster Management ◽  
Volcanic Eruption ◽  
Sampling Technique ◽  
P Value ◽  
Cross Sectional ◽  
Head Of Household ◽  
Correlational Research ◽  
Level Of Knowledge ◽  
Independent Variable ◽  
Negative Impacts

Introduction: Disaster management is a dynamic, continual, and integrated process as to increase the qualities of the actions which are relevant to the process of observation and analysis of disaster as well as minimalizing the negative impacts, mitigation, readiness, early warning, immediate emergency, rehabilitation and reconstruction. The aim of this research is to analyse theconnection between disaster management and the prevention of community breakdown in order to face a volcanic eruption for every head of household. Method: The design of this research is correlational research with a cross sectional approach. The demographic group that is used for this research is the head of households in Rt 06/Rw 01 dusun Puncu desa Puncu, by using the purposive sampling technique which has been collected from the sampling of the 33 heads of households. Independent variable is the knowledge of disaster management, and the dependent variable is the prevention of community breakdown in the handling of the disaster. The data has been received by using the questionnaire, and the results have been analysed by using spearman rho test. Result:  As according to the statistics test, it is found that p-value= 0,000 on the significant level (α) = 0,05 and r = 0,752. It is concluded that there is a connection between knowledge and the prevention of community breakdown in handling of the volcanic eruption in Rt 06/Rw 01. This research shows that the level of knowledge within the community about disaster management and prevention in handling volcanic eruption has been increasing. Conclution: This is shown by the capability of the community in mitigating the effects of the disaster. It is hoped that the community will further engage in training education and simulation to reduce the negative impacts of a disaster. The location where the participants resideis Kelud Volcano, and it is therefore hoped that the communities are willing to participate in better handling of any disaster by joining the education training and simulation; Kata kunci : Pengetahuan, Manajemen bencana, Prevention.

HUBUNGAN AKTIVITAS FISIK DENGAN FUNGSI KOGNITIF LANSIA DI PANTI WREDHA YAYASAN SOSIAL SALIB PUTIH SALATIGA

2019 ◽  
pp. 137-143
Author(s):  
Dennys Christovel Dese ◽  
Cahyo Wibowo
Keyword(s):  
Physical Activity ◽  
Cognitive Function ◽  
The Elderly ◽  
Moderate Physical Activity ◽  
Cross Sectional ◽  
Significance Level ◽  
The Social ◽  
Normal Cognitive Function ◽  
Intellectual Capacity ◽  
Independent Variable

Peningkatan jumlah lansia setiap tahunnya harus dijadikan perhatian, akibat adanya peningkatan jumlah lansia masalah yang dihadapi akan menjadi semakin kompleks, salah satunya adalah masalah yang berkaitan dengan gejala penuaan. Menurunnya kapasitas intelektual berhubungan erat dengan fungsi kognitif pada lansia. Aktivitas fisik diidentifikasi sebagai salah satu faktor yang mempengaruhi fungsi kognitif. Aktivitas fisik bermanfaat untuk lansia sebagai pencegahan dan demensia. Penelitian ini merupakan penelitian analitik observasional dengan menggunakan pendekatan cross sectional. Penelitian dilakukan di yayasan sosial Panti Wredha Salib Putih Salatiga pada bulan Juni 2018. Populasi dalam penelitian ini adalah lansia yang berumur ?60 tahun. Subjek pada penelitian ini berjumlah 16 responden. Variabel independen dalam penelitian ini adalah aktivitas fisik yang dinilai dengan menggunakan instrument GPAQ. Sedangkan variabel dependen dalam penelitian ini adalah fungsi kognitif yang dinilai dengan instrument MMSE. Terdapat 4 orang (25%) yang masuk dalam kategori fungsi kognitif normal dengan kategori aktifitas fisik sedang 1 orang dan aktifitas berat 3 orang, kemudian yang termasuk dalam kategori gangguan fungsi kognitif ringan sebanyak 11 orang (68,75%), dengan kategori aktifitas fisik sedang 8 orang dan aktifitas ringan 3 orang. Sedangkan yang termasuk dalam kategori gangguan fungsi kognitif berat, terdapat 1 orang (6,25%) dengan kategori aktifitasnya ringan. Taraf signifikansi antar variabel tingkat aktifitas fisik dan fungsi kognitif pada lansia adalah p=0.007 atau p<0,05, sehingga dapat disimpulkan ada  hubungan antara tingkat aktifitas fisik dengan fungsi kognitif pada lansia.   Increasing the number of elderly people every year should be a concern, due to an increase in the number of elderly problems faced will become increasingly complex, one of which is a problem related to the symptoms of aging. Decreased intellectual capacity is closely related to cognitive function in the elderly. Physical activity is identified as one of the factors that influence cognitive function. Physical activity is beneficial for the elderly as prevention and dementia. This study was an observational analytic study using a cross sectional approach. The study was conducted at the social foundation nursing home in the white cross in June 2018. The population in this study was elderly aged ≥60 years. The subjects in this study were 16 respondents. The independent variable in this study is physical activity that is assessed using the GPAQ instrument. While the dependent variable in this study was cognitive function which was assessed by the MMSE instrument. There are 4 people (25%) who fall into the category of normal cognitive function with moderate physical activity categories 1 person and heavy activities 3 people, then those included in the category of mild cognitive function disorders are 11 people (68.75%), with the category of physical activity being 8 people and 3 light activities. While those included in the category of severe cognitive function disorders, there is 1 person (6.25%) with a mild activity category. The significance level between the level of physical activity and cognitive function in the elderly is p = 0.007 or p <0.05, so it can be concluded that there is a relationship between the level of physical activity and cognitive function in the elderly.

scholarly journals Investigation of Feller-Buncher Performance Using Weibull Distribution

Forests ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 284
Author(s):  
Ebru Bilici
Keyword(s):  
Weibull Distribution ◽  
Shape Parameter ◽  
B Value ◽  
Productivity Analysis ◽  
Volume Data ◽  
Estimation Model ◽  
Distribution Method ◽  
Timber Volume ◽  
C Value ◽  
The Right

With the advancement of technology in forestry, the utilization of advanced machines in forest operations has been increasing in the last decades. Due to their high operating costs, it is crucial to select the right machinery, which is mostly done by using productivity analysis. In this study, a productivity estimation model was developed in order to determine the timber volume cut per unit time for a feller-buncher. The Weibull distribution method was used to develop the productivity model. In the study, the model of the theoretical (estimated) volume distributions obtained with the Weibull probability density function was generated. It was found that the c value was 1.96 and the b value was 0.58 (i.e., b is the scale parameter, and c is the shape parameter). The model indicated that the frequency of the volume data had moved away from 0 as the shape parameter of the Weibull distribution increased. Thus, it was revealed that the shape parameter gives preliminary information about the distribution of the volume frequency. The consistency of the measured timber volume with the estimated timber volume strongly indicated that this approach can be effectively used by decision makers as a key tool to predict the productivity of a feller-buncher used in harvesting operations.

scholarly journals Right ventricular ejection fraction as predictor of outcome in acute heart failure using RV ellipsoid model: A retrospective analysis of a prospective cross-sectional study

2021 ◽  
Vol 10 ◽  
pp. 204800402110027
Author(s):  
Eshan Ashcroft ◽  
Otar Lazariashvili ◽  
Jonathan Belsey ◽  
Max Berrill ◽  
Pankaj Sharma ◽  
...  
Keyword(s):  
Heart Failure ◽  
Ejection Fraction ◽  
Right Ventricular ◽  
Retrospective Analysis ◽  
Cross Sectional Study ◽  
Volume Estimation ◽  
Sectional Study ◽  
Cross Sectional ◽  
Ventricular Ejection Fraction ◽  
Rv Function

Objectives The right ventricular (RV) function is an important prognostic factor in acute and chronic heart failure (HF). Echocardiography is an essential imaging modality with established parameters for RV function which are useful and easy to perform. However, these fail to reflect global RV volumes due to reliability on one acoustic window. It is therefore attractive to calculate RV volumes and ejection fraction (RVEF/E) using an ellipsoid geometric model which has been validated against MRI in healthy adults but not in the HF patients. Design This is a retrospective analysis of a prospective cross-sectional study enrolling 418 consecutive patients with symptoms of HF according to a predefined study protocol. All patients underwent echocardiographic assessment of RV function using Tricuspid Annular Plane Systolic Excursion (TAPSE) and RV fractional area change (RVFAC) and RVEF/E. Setting Single centre study with multiple locations for acute in-patients including high dependency units. Participants Patients with acute or exacerbation of chronic HF older than 18 y.o. Main outcome measures Ability of RVEF/E to predict patient outcomes compared with two established parameters of RV function over two-year follow-up period. Primary outcome measure was all-cause mortality. Results RVEF/E is equal to TAPSE & RVFAC in predicting outcome (p ≤ 0.01 vs p ≤ 0.01) and provides additional benefit of RV volume estimation based on standard 2D echo measurements. Conclusions In this study we have shown that RVEF/E derived from ellipsoid model is not inferior to well established measures of RV function as a prognostic indicator of outcome in the acute HF.

scholarly journals Patient Awareness of Cost of Treatment at a Government Sponsored Hospital in India

2019 ◽  
Vol 39 (3) ◽  
pp. 147-154
Author(s):  
. Ritesh ◽  
Harsh Mohinder Singh ◽  
Bikram Jit Singh
Keyword(s):  
Cost Estimation ◽  
Multivariate Regression Analysis ◽  
Survey Study ◽  
P Value ◽  
Treatment Technique ◽  
Cross Sectional ◽  
Box Plots ◽  
Free Treatment ◽  
Costs Of Treatment ◽  
Independent Variable

Introduction: To evaluate the awareness amongst the beneficiary about the costs of medical services in a hospital which provides all services at no cost and also to analyse whether education level of the beneficiary client, number of days stayed in hospital and their prior exposure of being treated on payment in other hospital has some bearing on cost estimation by the participants. Method: It was a cross sectional questionnaire based survey study. A total of 130 beneficiary clientele of a government hospital were interviewed. Two sample ‘t’ test and ANOVA were used for statistical analysis. Multivariate regression analysis was used to study effect of more than one independent variable on cost estimation. Scatter plot and box plots were used to study standard deviation. Results: It revealed poor awareness of people in cost estimation of medical expenses. A significant ‘p’ value of < 0.05 was observed with respect to length of stay (p = 0.003), treatment modality (p = 0.000) and multivariate variable (treatment technique along with exposure to treatment in paid hospital, p = 0.008). Conclusion: The beneficiary clientele in a hospital with free treatment generally not aware about the exuberant costs of treatment born by the state.

Constraint-Based Reverse Engineering From Ultrasound Cross-Sections

1997 ◽  
Author(s):  
Jai Menon ◽  
Ranjit Desai ◽  
Jay Buckey
Keyword(s):  
Reverse Engineering ◽  
Cross Sections ◽  
Biomedical Applications ◽  
Engineering Application ◽  
Volume Data ◽  
Cross Sectional ◽  
Reverse Engineer ◽  
Network Bandwidth ◽  
Complex Topology

Abstract This paper extends the “cross-sectional” approach for reverse engineering, used abundantly in biomedical applications, to the mechanical domain. We propose a combination of “projective” and cross-sectional algorithms for handling physical artifacts with complex topology and geometry. In addition, the paper introduces the concept of constraint-based reverse engineering, where the constraint parameters could include one or more of the following: time, storage (memory, disk-space), network bandwidth, Quality of Service (output-resolution), and so forth. We describe a specific reverse-engineering application which uses ultrasound (tilt-echo) imaging to reverse engineer spatial enumeration (volume) representations from cross-sectional data. The constraint here is time, and we summarize how our implementation can satisfy real-time reconstruction for distribution of the volume data on the internet. We present results that show volume representations computed from static objects. Since the algorithms are tuned to satisfy time constraints, this method is extendable to reverse engineer temporally-varying (elastic) objects. The current reverse engineering processing time is constrained by the data-acquisition (tilt-echo imaging) process, and the entire reverse engineering pipeline has been optimized to compute incremental volume representations in the order of 3 seconds on a network of four processors.

scholarly journals Development of ‘16-Holes Manual Dexterity Pegboard’ and the Normal Value of 6 Years Old Children

1970 ◽  
Vol 2 (01) ◽  
pp. 37-44
Author(s):  
Fanny Aliwarga ◽  
Ferial Hadipoetro ◽  
Angela BM Tulaar ◽  
Surjanto H
Keyword(s):  
Nutritional Status ◽  
Descriptive Analysis ◽  
Cross Sectional Study ◽  
Manual Dexterity ◽  
Cross Sectional ◽  
Normal Value ◽  
Dependent Variables ◽  
Standard Normal ◽  
Independent Variable ◽  
The Mean

Objectives: Obtaining the standard normal value of 6 years old children aged six year, and testing our hypothesis if girls’ dexterity is higher than boys.Methods: The design of this study was a cross sectional study of six years old students of public elementary school in South Jakarta. Inclusion criteria included age six years old, no neurological andorthopedic problem, normal nutritional status and right handed. Location based-random sampling was performed. Dependent variables comprised of age, sex and nutritional status. Independent variable wasthe result of ‘16-Holes Three-Jaw Chuck Manual Dexterity Pegboard’ test. Statistical analysis was done by descriptive analysis and Mann Whitney Test.Results: There were 191 girls and 191 boys who fulfilled the criteria. The ‘16-Holes Three-Jaw Chuck Manual Dexterity Pegboard’ test allowed subjects to be assessed for their ability to put numbers of pegwithin 15 seconds. The mean number of pegs placed for girls was 6.92 pegs (CI 95% 6.76 – 7.08) and boys was 6.49 pegs (CI 95% 6.33 – 6,65)Conclusions: Girls are able to place more pegs than boys in a given time. Furthermore, girls’ manual dexterity is superior to boys (p 0,000).Keywords: Manual dexterity, standard normal value, pegboard, sex differences.

scholarly journals Pengaruh Tingkat Pendidikan, Pekerjaan Dan Pendapatan Keluarga Yang Mendapat Pendidikan Kesehatan Terhadap Penatalaksanaan Diet Diabetes Melitus Dalam Keluarga Di Rumah Sakit Umum Daerah Gambiran Kediri

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Sucipto Sucipto
Keyword(s):  
Diabetes Mellitus ◽  
Health Education ◽  
Analytical Data ◽  
Chi Square ◽  
Cross Sectional ◽  
Level Of Education ◽  
The Family ◽  
Chi Square Test ◽  
Independent Variable ◽  
Lower Education

The effect of the level of education, job, and income that gets the health education on the management of the diet for the diabetes mellitus in a family. Unless Diabetes Mellitus (DM) is well-handled, it will affect the complication on the various vital organs of the human body. By well experiences such as the cooperation among patient, family and medical staff, the complication of DM can be prevented, or at least, can be slowly halted its development. To target the point, the participation of the patient, the family of the sufferer to care for is badly needed. The aim of the research is to know the effect of the level of education, job and income that gets the health education on the management of the diet for the diabetes mellitus in a family. The method of the research is the analytical descriptive method by using cross sectional approach. The research was applied in November 2008. The population are the family and the sufferers of the DM who were treated in the Gambiran Public Hospital in Kediri. The sample uses the purposive sampling, and the total of respondents is 60. The data collecting is questioner. The data is represented in pictures, tables and narrative. The analytical data with statistical Chi-square test is supposed to know the relation of the variables. Whereas, to know the effect of all, the independent variable and dependent variable use the logistic binary regressive analysis with SPSS Program version 12. The result of the research shows that the higher education probably reaches 3.4 times, the management of DM is much better than that of the lower education (OR = 3.369, CI = 0.728 – 15. 604), and the other factors that improve the management of the diet in family are jobs, incomes and ages. The research concludes that the level of education, job, income and age are the main factors to improve the management of the diet in family. The health guides (nutritionists) are advisably giving guidance in accordance with the backgrounds of education, job, income, and age of the target points.

scholarly journals DUKUNGAN KELUARGA MEMPENGARUHI KEMAMPUAN ADAPTASI (PENERAPAN MODEL ADAPTASI ROY) PADA PASIEN KANKER DI YAYASAN KANKER INDONESIA CABANG JAWA TIMUR

2018 ◽  
Vol 10 (1) ◽  
Author(s):  
R. Khairiyatul Afiyah
Keyword(s):  
Family Support ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Cross Sectional ◽  
Whitney Test ◽  
Patients With Cancer ◽  
Mann Whitney Test ◽  
Independent Variable ◽  
Cross Sectional Design ◽  
Level Of Significance

Most patients with Cancer cannot adapt to their disease because they assume that it is a deadly disease. The purpose of this study was to find out the correlation between family support and adaptability of patients suffered from Cancer found at Yayasan Kanker Indonesia (Indonesian Cancer Foundation) located in East Java. This analytic study using cross sectional design involved the population of all people with Cancer found at Yayasan Kanker Indonesia located in East Java, totaling 30 patients. The samples of 27 patents were collected using simple random sampling technique. The independent variable was family support, whereas the dependent variable was adaptability. Questionnaires were used to collect the data analyzed using Mann-Whitney test with the level of significance α = 0.05. The result of study showed that most of the patients (70.4%) received good family support, whereas most of them (63.0%) had ability to adapt to their disease. Moreover, the result of Mann-Whitney test showed that p = 0.001 and the level of significance α = 0.05 so that H1 was accepted because p < 0.05. It showed that there was a correlation between family support and adaptability of patients suffered from Cancer found at Yayasan Kanker Indonesia located in East Java.The more family support, the more adaptive the patients with Cancer adapt to their disease. Hence, nurses are expected to give health education about the importance of family support to the family of patients with Cancer.

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