scholarly journals ANALISIS WAKTU KERJA PENGUKURAN TINGGI POHON MENGGUNAKAN KLINOMETER DAN HAGAMETER

2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Diah Rakhmah Sari ◽  
Ariyanto Ariyanto
Keyword(s):  
Research Method ◽  
Tree Height ◽  
Measuring Instruments ◽  
Measuring Instrument ◽  
Height Measurement ◽  
Finish Time ◽  
Sample Tree ◽  
Standing Trees ◽  
Long Time ◽  
Inventory Activity

Tree height measurement is one part of the inventory activity of standing trees before logging which requires a relatively long time and quite expensive costs, so it needs to use a more productive measuring instrument. There are several commonly used tree height measuring instruments, including the clinometer and hagameter. This study aim is to determine the working time of measuring tree height with clinometer and hagameter. The research method used was to determine the sample tree randomly, then measured the height of each tree with the clinometer and hagameter.  In addition,  it also calculates the length of time the measurement of the height of each instrument by recording the start and finish time of each measurement activity carried out. The results showed that measuring the height of a tree using clinometer takes 0.68 minutes per tree in average, and using a stick meter aid takes  1.18 minutes in average, and by using haga with a scale board aids takes 0.88 minutes per tree in average. Thus the measurement of tree height by using a clinometer is faster than using haga, while measuring the height of a tree using a hagameter with a scale board is faster than a meter.

scholarly journals ANALISIS WAKTU KERJA PENGUKURAN TINGGI POHON MENGGUNAKAN KLINOMETER DAN HAGAMETER

2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Diah Rakhmah Sari ◽  
Ariyanto Ariyanto
Keyword(s):  
Research Method ◽  
Tree Height ◽  
Measuring Instruments ◽  
Measuring Instrument ◽  
Height Measurement ◽  
Finish Time ◽  
Sample Tree ◽  
Standing Trees ◽  
Long Time ◽  
Inventory Activity

Tree height measurement is one part of the inventory activity of standing trees before logging which requires a relatively long time and quite expensive costs, so it needs to use a more productive measuring instrument. There are several commonly used tree height measuring instruments, including the clinometer and hagameter. This study aim is to determine the working time of measuring tree height with clinometer and hagameter. The research method used was to determine the sample tree randomly, then measured the height of each tree with the clinometer and hagameter.  In addition,  it also calculates the length of time the measurement of the height of each instrument by recording the start and finish time of each measurement activity carried out. The results showed that measuring the height of a tree using clinometer takes 0.68 minutes per tree in average, and using a stick meter aid takes  1.18 minutes in average, and by using haga with a scale board aids takes 0.88 minutes per tree in average. Thus the measurement of tree height by using a clinometer is faster than using haga, while measuring the height of a tree using a hagameter with a scale board is faster than a meter.

scholarly journals Comparison of Optical Dendrometers for Prediction of Standing Tree Volume

1999 ◽  
Vol 23 (2) ◽  
pp. 100-107 ◽  
Author(s):  
Robert C. Parker ◽  
Thomas G. Matney
Keyword(s):  
Measurement Data ◽  
Tree Height ◽  
Standing Tree ◽  
Height Measurement ◽  
Total Height ◽  
Profile Equation ◽  
Standing Trees ◽  
Pine Trees ◽  
Tree Data ◽  
Mean Differences

Abstract Enhanced sets of compatible stem profile equations were used with data collected from felled and standing pine trees to calculate tree volumes to various top merchantability limits. Standing trees were measured with the Criterion 400 Laser, Tele-Relaskop, and Wheeler Pentaprism. These measurements were used to compare accuracies of the optical dendrometers for the measurement of tree dbh and height and the prediction of tree volume from stem profile equations. The Criterion 400 Laser was more accurate for dbh and total height measurement than was the Tele-Relaskop or the Wheeler Pentaprism, but the accuracy differences are not significantly different in a practical sense. Mean percent differences in dbh measurement translated, in absolute units, to -0.05, +0.20, and -0.34 in. of the mean tree dbh for the Criterion 400, Tele-Relaskop, and Wheeler Pentaprism instruments, respectively. Mean percent differences in total height measurement translated, in absolute units, to 0.5, 1.6, and 1.7 ft, respectively, of the average tree height and were not practically different. The combined measurement data for dbh and dob16, indicated the Tele-Relaskop would produce more reliable volume results than the other instruments if the dendrometer measurements were used with form class volumes. Profile equations developed with felled-tree data produced the most consistent estimates of merchantable height and cubic foot volume to specified merchantable top limits. In general, the Criterion 400 produced the smallest mean differences in standing tree measurements and profile equation predictions of merchantable height and cubic foot volume. However, the Tele-Relaskop produced the most consistent tree measurement and profile prediction trends. The Wheeler Pentaprism was the least accurate of the three dendrometers. South. J. Appl. For. 23(2):100-107.

scholarly journals A Model to Estimate Noble Fir Bough Weight

2005 ◽  
Vol 20 (1) ◽  
pp. 44-49 ◽  
Author(s):  
Keith A. Blatner ◽  
Roger D. Fight ◽  
Nan Vance ◽  
Mark Savage ◽  
Roger Chapman
Keyword(s):  
Pacific Northwest ◽  
Tree Height ◽  
Forest Products ◽  
Nontimber Forest Products ◽  
Final Model ◽  
Sample Tree ◽  
Wide Range ◽  
Standing Trees ◽  
Clackamas County ◽  
Noble Fir

Abstract The harvesting of noble fir (Abies procera) for the production of Christmas wreaths and related products has been a mainstay of the nontimber forest products industry in the Pacific Northwest (PNW) for decades. Although noble fir is the single most important bough product harvested in the PNW, little or no work has been published concerning the estimation of the weight of harvestable boughs from standing trees. The model presented in this article was designed specifically for use in predicting the weight of harvestable boughs from standing trees. A total of 322 noble fir were selected on the west side of the Cascades of Washington and Oregon. The stands and sites for sampling were chosen to represent a wide range of environmental and stand conditions. Sample trees were selected at fixed distances along systematical located lines at each selected site. Circular plots with a 20-ft radius centered at each sample tree were established to provide data on competition. Regression analysis was used to estimate the final model. Variables included in the final model were total tree height, merchantable bough height, dbh2, age at dbh, whorl age for each merchantable whorl, and the associated number of boughs for each whorl as well as the total number of trees within a 20-foot radius of the plot tree. In addition, an intercept shifter (0,1) to designate noble fir stands located north and South of the Marion/Clackamas County line in Oregon (South = 0, North = 1) was included in the model. The overall model was significant at the 0.0001 level with an adjusted R2 of 0.77 West. J. Appl. For. 20(1):44–49.

scholarly journals ALAT UKUR INDUKTANSI DIGITAL BERBASIS ATMEGA 32

2016 ◽  
Vol 19 (1) ◽  
pp. 1
Author(s):  
Hanna Fury Nur Ramdany ◽  
Heru Winarno
Keyword(s):  
Research Method ◽  
Laboratory Tests ◽  
Percentage Error ◽  
Average Error ◽  
Measuring Instruments ◽  
Measuring Instrument ◽  
Oscillator Circuit ◽  
Analog Measuring ◽  
Error Ratio ◽  
Lcr Meter

Hanna Fury Nur Ramdany, Heru Winarno in this paper explain that inductors have an important role in the field of electronics. Many values of capacitors and inductors whose values are difficult to translate, namely when capacitors and inductors are of low value and the color of the print is less clear , also considering the human read factor  when an analog measuring instrument is used. From these problems, it is designed an inductance measuring instrument (L Meter) whose results can be directly displayed.The research method used in the manufacture of inductance meter measuring instruments is the literature method and laboratory tests using frequency variables generated or read by the oscillator circuit. The inductance measuring instrument designed in this researc is simple and meticulous measuring instrument that can be read and used by everyone. This digital inductance meter can be used to measure inductance - inductance with a level or a range of measurements between 20μH –100mH.The lower the inductor value measured, the higher the percentage error. So that the tools designed must be able to work well. The average error ratio of an inductance meter with a standard LCR meter is 6.5%. . Keywords: Measuring, Inductor, Microcontroller and LCD DisplayReferencesMimail,B. (2011) Dasar Teknik Elektro Rangkaian Listrik.Malang UB Press.Malvino, A.P. (1979). Prinsip-Prinsip Elektronik Edisi Kedua (terjemahan Hanapi Gunawan). Jakarta:Erlangga.Malvino, A.P. (1996). Prinsip-Prinsip Dasar Elektronika Edisi Ketiga (terjemahan Prof. M. Barmawi, Ph.D. , M.O. Tjia, Ph.D., Departemen Fisika, Institut Teknlogi Bandung). Jakarta: Erlangga.Bishop, O. (2004). Dasar-Dasar Elektronika (terjemahan Irzam Harmein S.T). Jakarta: Erlangga.Yuliana, E. (2006). Rancang Bangun Alat Induktansi dan Kapasitansi Meter. Semarang. Universitas Negeri Semarang.Amallia, F. (2009). Rancang Bangun Kapasitansi dan Induktansi Meter Menggunakan Mikrokontroler Atmega8 Dengan Tampilan LCD. Jakarta. Universitas Mercu Buana.Frank D, Petrezuella. (2001). Elektronika Industri. Yogyakarta: Andi

METHOD FOR ESTIMATING ERRORS IN MEASURING INSTRUMENTS BY THE SPACE CATALOGUE ORBITS

2018 ◽  
pp. 76-84
Author(s):  
K. V. Sorokin ◽  
E. A. Sunarchina
Keyword(s):  
Dynamic Model ◽  
New Method ◽  
Measuring Instruments ◽  
Measuring Instrument ◽  
Software Complex

Improvement of orbits precision is one of the most important tasks of space surveillance catalogue maintenance. The solution of this problem is directly related to an adequate consideration of the errors of the coordinate information from the measuring instruments. The article consideresd a new method for estimating the precision of measuring instruments on the catalog orbits. To carry out such analysis, in PJSC «VIMPEL» special technological program was created. Main results of a study of radar errors with orbits of space surveillance catalogue was presented. Also, the results were compared with data of measuring instrument's calibration software complex. This software complex provides determination of satellite's position with errors less than 10 m. A new dynamic model of measuring instrument errors is proposed.

STRATEGI PENGEMBANGAN BUDAYA KULINER TRADISIONAL PADA BAKPIA DAN WINGKO BABAT XYZ

2021 ◽  
Vol 10 (1) ◽  
pp. 194
Author(s):  
Maria Maria
Keyword(s):  
Research Method ◽  
Matrix Analysis ◽  
Literature Study ◽  
Diversification Strategy ◽  
Marketing Process ◽  
Long Time ◽  
The Right ◽  
Culinary Culture ◽  
Depth Interviews ◽  
Research Analysis

This research examines the development of traditional culinary culture,  Bakpia and Wingko Babat XYZ with the aim of preserving the local culinary heritage located in Bantul. Bakpia and Wingko Babat XYZ  is a special traditional business place that sells traditional Yogyakarta food in the Bantul area which still uses traditional methods. This business has been around for a long time since 1997. Lack of the right strategy is the cause when local and foreign visitors do not know much information about the culinary business of Bakpia and Wingko Babat XYZ. Based on this, this study aims to identify and analyze the marketing process carried out by Bakpia and Wingko Babat XYZ, to determine the potential of traditional culinary culture and to explore strategy formulations in Bakpia and Wingko Babat XYZ. The research method in this study is a qualitative research method, by conducting direct and in-depth interviews with key persons, observation, and literature study. The qualitative method used is descriptive qualitative which will describe how the right strategy is based on the results of the analysis. The interview data were analyzed by several stages, namely the SWOT stage in the internal and external environment, the weight and ranking calculation stage, the IFE-EFE and IE matrix analysis stage, and the conclusion stage. In the research analysis, the IFE and EFE matrix values were obtained, where the IFE value was 2.774 and the EFE value was 2.842. This condition shows that Bakpia and Wingko Babat XYZ  is in the V quadrant position, which means Hold and Maintain, in this position the right strategy is market penetration and product development, and in the SWOT quadrant in quadrant II Cobination supports the Diversification strategy, this is requires making alternative strategies that can be used to increase existing strengths so that they can overcome threats.Keywords: culinary culture, SWOT, IE.AbstrakPenelitian ini meneliti tentang  budaya kuliner tradisional yaitu Bakpia dan Wingko Babat XYZ dengan tujuan untuk menjaga warisan budaya kuliner lokal yang terletak di Bantul. Bakpia dan Wingko Babat XYZ merupakan tempat usaha tradisional khusus yang menjualkan makanan tradisional khas Yogyakarta di daerah bantul yang masih menggunakan cara-cara tradisional. Usaha ini sudah lama berdiri sejak 1997. Kurangnya strategi yang tepat menjadi penyebab ketika pengunjung lokal maupun mancanegara tidak mengetahui banyak informasi mengenai usaha kuliner Bakpia dan Wingko Babat XYZ. Berdasarkan hal tersebut, penelitian ini bertujuan untuk mengidentifikasi dan menganalisa proses pemasaran yang dilakukan Bakpia dan Wingko Babat XYZ, untuk mengetahui potensi budaya kuliner tradisional dan mengeksplorasi formulasi strategi di Bakpia dan Wingko Babat XYZ. Metode  penelitian pada penelitian ini adalah metode penelitian kualitatif, dimana dengan melakukan wawancara kepada key person secara langsung dan mendalam, observasi, dan  studi pustaka. Metode kualitatif  yang  digunakan yaitu kualitatif deskriptif yang akan mendeskripsikan bagaimana strategi yang tepat berdasarkan hasil analisis. Data  wawancara dianalisis dengan beberapa tahap-tahapan yaitu tahap SWOT pada lingkungan internal dan eksternal, tahap perhitungan bobot dan peringkat, dan tahap analisis matriks IFE-EFE dan IE, serta tahap kesimpulan. Pada analisis penelitian diperoleh nilai matriks IFE dan EFE, dimana nilai IFE sebesar 2,774 dan nilai EFE sebesar 2,842. Kondisi ini menunjukkan bahwa Bakpia dan Wingko Babat XYZ  berada pada posisi kuadran V yaitu berarti Hold and Maintain, pada posisi ini  strategi yang  tepat adalah penetrasi pasar dan pengembangan produk, serta pada kuadran SWOT  pada kuadran II Cobination mendukung stategi Diversifikasi, hal ini mengharuskan membuat alternative strategi yang dapat digunakan untuk meningkatkan Kekuatan yang ada sehingga dapat mengatasi ancaman.Kata Kunci: budaya kuliner, SWOT, IE. Author:Maria : Institut Seni Indonesia Yogyakarta References: Agustim, W., & Nurhidayat, M. (2020). Analisis Matrik IE pada UMKM Berbasis Produk Pertanian Kelompok Wanita Pelaku Usaha Tanaman Hias di Desa Sidomulyo Kota Batu. Referensi: Jurnal Ilmu Manajemen dan Akuntansi, 8(1), 73-78. https://doi.org/10.33366/ref.v8i1.1760.David, Fred R. 2016, Manajemen Strategis, Edisi 15. Jakarta: Salemba Empat.Evelyn, E. (2018). Analisis Manajemen Strategi Bersaing Dengan Matriks Ie, Matriks Swot Dan Matriks Qspm Pada Pt. Xyz. Jurnal Manajemen Bisnis dan Kewirausahaan, 2(4), 99-105. http://dx.doi.org/10.24912/jmbk.v2i4.4869.Rangkuti, Freddy. (2015). Analisis SWOT : Teknik Membedah Kasus Bisnis (Cara Perhitungan Bobot, Rating dan OCAI). Jakarta: PT Gramedia Pustaka Utama.Retnawati, L. (2018). Perencanaan Strategis Si/Ti dengan Metode Analisa Swot dan BSC untuk Meningkatkan Daya Saing di Universitas XYZ. JISKA (Jurnal Informatika Sunan Kalijaga), 2(3), 135-142. https://doi.org/10.14421/jiska.2018.23-02.Sugiyono. (2016). Metode Penelitian: Kuantitatif, Kualitatif dan R&D. Bandung: Alfabeta.Tyas, S. K., & Chriswahyudi, C. (2017). Perencanaan Strategi Pemasaran dengan Pendekatan Matrik IE, SWOT dan AHP untuk Mendapatkan Alternatif Strategi Prioritas. Prosiding Semnastek. https://jurnal.umj.ac.id/index.php/semnastek/article/view/1989/1632.

The measurement problem of calibration of measuring instrument under specified conditions

2021 ◽  
pp. 9-15
Author(s):  
Sergey F. Levin
Keyword(s):  
Risk Assessment ◽  
Risk Management ◽  
Measurement Problem ◽  
Parametric Identification ◽  
Correction Function ◽  
Measuring Instruments ◽  
Measuring Instrument ◽  
Mathematical Apparatus ◽  
Second Stage ◽  
Assessment Techniques

The problem of calibration of measuring instruments for given conditions based on the correction function is considered as a measurement problem of structural-parametric identification of the calibration diagram. It is shown, that the correction function allows at the first stage to obtain a ratio for correcting the readings, and at the second stage to obtain a corrected measurement result, it is necessary to identify the probability distribution of possible deviations from it. An example of solving the measurement problem of calibration for given conditions is given. Negative aspects of the practice of calibration of measuring instruments are noted: carrying out calibration under normal conditions according to the methods of verification of measuring instruments; presentation of calibration results by tables of joint readings of measuring instruments and standards; the presence in the calculations of the calibration diagram of significant restrictions on the mathematical apparatus of the «Guidelines for the expression of measurement uncertainty», specified by ISO/IEC 31010:2019 “Risk management – Risk assessment techniques”.

scholarly journals Analisis Pengaruh Faktor Kinerja Terhadap Produktivitas dan Optimasi Dinas Pembekalan TNI AL

Rekayasa ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 334-339
Author(s):  
Masriansyah Masriansyah ◽  
Untung Purnomo ◽  
Binsar Mangaratua Sirait
Keyword(s):  
Organizational Culture ◽  
Human Resources ◽  
Random Sampling ◽  
Research Method ◽  
Work Productivity ◽  
Stratified Random Sampling ◽  
Main Task ◽  
Analysis Techniques ◽  
Long Time ◽  
Time Served

The Navy Debriefing Service is a central implementing agency whose main task is a series of supply chain management, which has several problems related to the uneven competence of Disbekal personnel, limited human resources and lack of creation, innovation, improvisation, as a result of the large number of personnel who have been around for a long time. served in Disbekal. So the purpose of this research is to analyze the influence of competence and the influence of organizational culture partially on the work productivity of Disbekal. As well as analyzing the influence of competence and organizational culture simultaneously on the work productivity of Disbekal. Descriptive verification research method with data analysis techniques using Path Analysis. The number of samples is 88 personnel, with data collection through stratified random sampling. The results showed that there was a significant influence between competence, and organizational culture on the work productivity of the TNI AL debriefing service partially and simultaneously. Where the direct influence of the competence variable is 30.2%, and the organizational culture variable is 18.5%. The total effect is 68.1% overall, while 39.1% is the influence of other factors that were not researched.

scholarly journals PA KUA'S MIRROR FUNCTION FOR CHINA ETHNISTS IN KOTAPINANG DISTRICT, LABUHANBATU SELATAN DISTRICT

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Tri Rahma Dana ◽  
Usman Pelly ◽  
Ichwan Azhari
Keyword(s):  
Research Method ◽  
Home Country ◽  
Interview Data ◽  
Economic Activities ◽  
Ethnic Chinese ◽  
Mirror Function ◽  
Long Time ◽  
Descriptive Qualitative

This study aims to determine the function of the Pa Kua mirror, namely a mirror with an octagonal shape, made of aluminum and silver which is believed to capture good things and ward off bad things that are usually placed outside the building above the entrance by the ethnic Chinese to live their lives, especially during the Covid-19 pandemic, a situation where all economic activities of many people have become paralyzed and even difficult to survive, such as in Kotapinang, South Labuhanbatu Regency. As the purpose of using this Pa Kua mirror is a tradition passed down from generation to generation to be able to protect the buildings they inhabit. The research method used is descriptive qualitative. With the technique of collecting interview data, observation, and study documentation. The results of the analysis found that this mirror has been used for a long time by ethnic Chinese in their home country of China and has become a tradition they believe in banishing bad energies that enter their residence, and are brought by migrating Chinese ethnicities, especially in this Kotapinang sub-district. and used by those who still believe and still preserve the traditions of their ancestors today.

scholarly journals The Contribution of Workload and Stress towards Burnout in Special Needs Teachers

2021 ◽  
Author(s):  
Bakhitah Jihan Wijaya ◽  
Endang Prastuti
Keyword(s):  
Special Needs ◽  
Maslach Burnout Inventory ◽  
Measuring Instruments ◽  
Measuring Instrument ◽  
Students With Special Needs ◽  
Stress Theory ◽  
And Coping ◽  
Stress Measuring ◽  
Analysis Models ◽  
Effective Contribution

This study evaluates the effect of workload and coping stress in special needs teachers, and considers the probability of burnout. 68 special needs teachers in Malang form the basis of this study and several measuring instruments were used, including the Maslach Burnout Inventory (MBI) developed by Maslach, the NASA-TLX developed by Sandra, and a coping stress measuring instrument which refers to the coping stress theory by Lazarus and Folkman. This study used the descriptive quantitative method, while the Pearson Product Moment correlation and Corrected Item Total were used to test the item discrimination index. Alpha Cornbach was used to test the reliability. Descriptive and double linier regression analysis models were used. The results show that (1) there is an effect of workload towards burnout (2) there is an effect of coping stress towards burnout (3) there is an effect of workload and coping stress toward burnout with 22.44% effective contribution. Keywords: coping stress, workload, burnout, teacher of students with special needs

Sign in / Sign up

Export Citation Format

Share Document