scholarly journals Application of the “boundary line analysis method” for the optimisation of the number of tractors used in an agricultural company

2014 ◽  
Vol 60 (No. 1) ◽  
pp. 1-8
Author(s):  
M. Mimra ◽  
M. Kavka ◽  
K. Tomšík ◽  
M. Struhár
Keyword(s):  
Life Sciences ◽  
Optimal Number ◽  
The Other ◽  
Plant Production ◽  
Boundary Line ◽  
Analysis Method ◽  
Operational Costs ◽  
Calculated Curve ◽  
Time Periods ◽  
Line Analysis

The “boundary line analysis method” calculates the minimal total annual operational costs used for the optimisation of number of tractors owned by agricultural companies. This calculation reflects the actual need of tractors used in the selected time periods during a year. The above method is based on data gained during five day periods (so-called pentads) in the plant production Farm Estate Lány which belongs to the Czech University of Life Sciences Prague. Based on the annual use of tractors in the company, operational costs involve tractors owned and hired. The calculated curve changes in relation to the total annual costs for the owned tractors. The economically optimal number of the owned tractors would be reached at the minimum point where the total annual costs curve is low whilst all working operations in the company have been done. Due to the use of tractors during the pentads, it is recommended to own exactly the number of tractor-machine sets given by the calculated minimum. For all the other works, it is advisable to use hired tractors, operationally leased tractors or outsourced services.

A very rapid in situ Kikuchi technique to determine relative crystal misorientation

1988 ◽  
Vol 46 ◽  
pp. 830-831
Author(s):  
J. I. Bennetch
Keyword(s):  
Electron Beam ◽  
Analytical Techniques ◽  
Superplastic Forming ◽  
The Other ◽  
Kikuchi Pattern ◽  
Kikuchi Line ◽  
Line Analysis

In a recent study of the superplastic forming (SPF) behavior of certain Al-Li-X alloys, the relative misorientation between adjacent (sub)grains proved to be an important parameter. It is well established that the most accurate way to determine misorientation across boundaries is by Kikuchi line analysis. However, the SPF study required the characterization of a large number of (sub)grains in each sample to be statistically meaningful, a very time-consuming task even for comparatively rapid Kikuchi analytical techniques.In order to circumvent this problem, an alternate, even more rapid in-situ Kikuchi technique was devised, eliminating the need for the developing of negatives and any subsequent measurements on photographic plates. All that is required is a double tilt low backlash goniometer capable of tilting ± 45° in one axis and ± 30° in the other axis. The procedure is as follows. While viewing the microscope screen, one merely tilts the specimen until a standard recognizable reference Kikuchi pattern is centered, making sure, at the same time, that the focused electron beam remains on the (sub)grain in question.

Voronoi Analysis of a Soccer Game

2004 ◽  
Vol 9 (3) ◽  
pp. 233-240 ◽  
Author(s):  
S. Kim
Keyword(s):  
Collective Behavior ◽  
Quantitative Assessment ◽  
The Other ◽  
Analysis Method ◽  
Random System ◽  
Soccer Game ◽  
Voronoi Polygons ◽  
The Mean

This paper describes a Voronoi analysis method to analyze a soccer game. It is important for us to know the quantitative assessment of contribution done by a player or a team in the game as an individual or collective behavior. The mean numbers of vertices are reported to be 5–6, which is a little less than those of a perfect random system. Voronoi polygons areas can be used in evaluating the dominance of a team over the other. By introducing an excess Voronoi area, we can draw some fruitful results to appraise a player or a team rather quantitatively.

PENGARUH ABILITY, BENEVOLENCE DAN INTEGRITY TERHADAP TRUST, SERTA IMPLIKASINYA TERHADAP PARTISIPASI PELANGGAN E-COMMERCE: STUDI KASUS PADA PELANGGAN E-COMMERCE DI UBM

2017 ◽  
Vol 2 (2) ◽  
pp. 155-168 ◽  
Author(s):  
David Wong
Keyword(s):  
Data Analysis ◽  
Data Collection ◽  
Structural Equation Model ◽  
Structural Equation ◽  
Likert Scale ◽  
Equation Model ◽  
The Other ◽  
Predictor Variables ◽  
Analysis Method ◽  
Other Hand

This research aims at analyzing (1) the effect of vendor’s ability, benevolence, and integrity variables toward e-commerce customers’ trust in UBM; (2) the effect of vendor’s ability, benevolence, and integrity variables toward the level of e-commerce customers’ participation in Indonesia; and (3) the effect of trust variable toward level of e-commerce customers participation in UBM. This research makes use of UBM e-commerce users as research samples while using Likert scale questionnaire for data collection. Furthermore, the questionnaires are sent to as many as 200 respondents. For data analysis method, Structural Equation Model was used. Out of three predictor variables (ability, benevolence, and integrity), it is only vendor’s integrity that has a positive and significant effect on customers’ trust. On the other hand, it is only vendor’s integrity and customer’s trust that have a positive and significant effect on e-commerce customers’ participation in UBM. Keywords: e-commerce customers’ participation, ability, benevolence, integrity

scholarly journals An Algorithm for Choosing the Optimal Number of Muscle Synergies during Walking

Sensors ◽  
2021 ◽  
Vol 21 (10) ◽  
pp. 3311
Author(s):  
Riccardo Ballarini ◽  
Marco Ghislieri ◽  
Marco Knaflitz ◽  
Valentina Agostini
Keyword(s):  
Motor Task ◽  
Optimal Number ◽  
The Other ◽  
Simulated Dataset ◽  
Muscle Synergies ◽  
Mean Square ◽  
Real Dataset ◽  
Traditional Approaches ◽  
Selection Of ◽  
Semg Signals

In motor control studies, the 90% thresholding of variance accounted for (VAF) is the classical way of selecting the number of muscle synergies expressed during a motor task. However, the adoption of an arbitrary cut-off has evident drawbacks. The aim of this work is to describe and validate an algorithm for choosing the optimal number of muscle synergies (ChoOSyn), which can overcome the limitations of VAF-based methods. The proposed algorithm is built considering the following principles: (1) muscle synergies should be highly consistent during the various motor task epochs (i.e., remaining stable in time), (2) muscle synergies should constitute a base with low intra-level similarity (i.e., to obtain information-rich synergies, avoiding redundancy). The algorithm performances were evaluated against traditional approaches (threshold-VAF at 90% and 95%, elbow-VAF and plateau-VAF), using both a simulated dataset and a real dataset of 20 subjects. The performance evaluation was carried out by analyzing muscle synergies extracted from surface electromyographic (sEMG) signals collected during walking tasks lasting 5 min. On the simulated dataset, ChoOSyn showed comparable performances compared to VAF-based methods, while, in the real dataset, it clearly outperformed the other methods, in terms of the fraction of correct classifications, mean error (ME), and root mean square error (RMSE). The proposed approach may be beneficial to standardize the selection of the number of muscle synergies between different research laboratories, independent of arbitrary thresholds.

Toxic properties of Aeromonas proteolytica

1974 ◽  
Vol 20 (10) ◽  
pp. 1403-1409 ◽  
Author(s):  
B. G. Foster ◽  
Mary O. Hanna
Keyword(s):  
Thermal Stability ◽  
Culture Filtrate ◽  
Hemolytic Activity ◽  
Optimal Growth ◽  
Growth Conditions ◽  
The Other ◽  
Activity Peak ◽  
Endopeptidase Activity ◽  
Time Periods ◽  
Thermal Stability Of

Aeromonas proteolytica was grown for various time periods in nutrient broth, tryptic soy broth, a semisynthetic medium, and 1 and 5% peptone under different conditions involving temperature and in continuous shake and stationary flasks. The cell-free culture filtrates were tested for hemolytic, endopeptidase, and dermonecrotic activity and optimal growth conditions for their production were determined. The dermonecrotic activity and endopeptidase activity was found to be parallel in all tests, while hemolysin was independent of the other two. Studies on the thermal stability of the culture filtrate revealed that hemolysin and dermonecrotic and endopeptidase activity were destroyed at 70 °C for 30 min. Fractionation of the filtrate by Sephadex G-200 resolved three peaks at 280 nm. Peak I was inactive; peak II contained endopeptidase and dermonecrotic and hemolytic activity; peak III contained pigment and hemolysin. Evidence is presented that the endopeptidase and dermonecrotic substance found in the cell-free filtrates of A. proteolytica grown medium appear at the same time and thus may be the same entity.

The Agreement between Greece and Italy on the Delimitation of their Respective Maritime Zones: An Italian Perspective

2021 ◽  
Vol 30 (1) ◽  
pp. 283-294
Author(s):  
Marina Mancini
Keyword(s):  
Continental Shelf ◽  
International Law ◽  
The Other ◽  
Boundary Line ◽  
Great Success ◽  
Ionian Sea ◽  
National Interests ◽  
The Mediterranean

In 2020 Greece and Italy concluded a maritime delimitation agreement, extending the already-established boundary line between their respective continental shelf areas to the other maritime areas to which they are entitled under international law. The Greek authorities hailed the agreement as a great success, stressing that it fully reflects their position vis-à-vis maritime delimitation in the Mediterranean and it meets their national interests in the Ionian Sea. This article critically analyzes the agreement, in the light of various recent events, and it finds that it serves Italian interests too. In particular, the 2020 Italo-Greek agreement furthers Italy’s growing interest in delimiting the maritime zones to which it is entitled under international law, so as to prevent its rights and jurisdiction over them being impaired by the proclamation of overlapping zones by its neighbours. It also sets the stage for future proclamation by Italy of an EEZ covering the waters adjacent to its territorial sea in the Ionian Sea.

KEPEMILIKAN DAN PENGUASAAN OBJEK JAMINAN FIDUSIA APABILA TERJADI SENGKETA WANPRESTASI DALAM PERJANJIAN KREDIT

2020 ◽  
Vol 8 (1) ◽  
pp. 78
Author(s):  
Dija Hedistira ◽  
' Pujiyono
Keyword(s):  
Economic Benefits ◽  
Civil Code ◽  
The Other ◽  
Third Party ◽  
Analysis Method ◽  
The Law ◽  
The Right

<p>Abstract<br />This article aims to analyze the ownership and mastery of a fiduciary collateral object, in cases that often occur today, many disputes between creditors and debtors in fiduciary collateral agreements are caused because creditors assume that with executive rights as fiduciary recipients, the fiduciary collateral object legally owned by creditors and creditors the right to take and sell fiduciary collateral objects when the debtor defaults unilaterally, as well as the debtor who considers that the fiduciary collateral object is owned by him because the object is registered on his name, so that the debtor can use the object free as  giving to a third party or selling the object of fiduciary guarantee unilaterally. the author uses a normative <br />juridical approach, and deductive analysis method based on the Civil Code and fiduciary law applicable in Indonesia, Law No. 42 of 1999 concerning Fiduciary Guarantees. The conclusion of the discussion is the ownership of the object of the Fiduciary Guarantee is owned by the debtor in accordance with the Law, mastery of the object of collateral controlled by the debtor for economic benefits, the procedure of execution The object of Fiduciary Guarantee is carried out in accordance with the Fiduciary Guarantee Act, an alternative mediation in resolving the dispute. There needs to be clarity in the use of language in making a law, so as not to conflict with each other between Article one and the other Articles.<br />Keywords: Ownership; Mastery; Object of Fiduciary Guarantee; Debtor; Creditors.</p><p>Abstrak<br />Artikel ini bertujuan untuk menganalisis tentang kepemilikan dan penguasaan suatu objek jaminan fidusia, dalam kasus yang saat ini sering terjadi, banyak sengketa antara kreditur dan debitur dalam perjanjian jaminan fidusia disebabkan karena kreditur beranggapan bahwa dengan adanya hak eksekutorial sebagai penerima fidusia, maka objek jaminan fidusia tersebut secara sah dimiliki oleh kreditur dan kreditur berhak mengambil dan menjual objek jaminan fidusia saat debitur cidera janji<br />(wanprestasi) secara sepihak, begitupun dengan debitur yang menganggap bahwa objek jaminan fidusia tersebut dimiliki olehnya karena objek tersebut terdaftar atas namannya, sehingga debitur dapat mempergunakan objek tersebut secara bebas seperti menyerahkan kepada pihak ketiga atau menjual objek jaminan fidusia tersebut secara sepihak. penulis menggunakan pendekatan yuridis normatif, dan metode analisis deduktif yang didasarkan pada Kitab Undang-Undang Hukum Perdata<br />dan hukum jaminan fidusia yang berlaku di Indonesia, Undang-Undang No. 42 Tahun 1999 tentang Jaminan Fidusia. Kesimpulan pembahasan adalah Kepemilikan Objek Jaminan Fidusia dimiliki oleh debitur sesuai Undang-undang, penguasaan objek jaminan dikuasai debitur untuk manfaat ekonomis, prosedur eksekusi Objek Jaminan Fidusia dilakukan sesuai dengan Undang-Undang Jaminan Fidusia, alternatif secara mediasi dalam menyelesaikan sengketa yang terjadi. Perlu ada kejelasan dalam<br />penggunaan bahasa pada pembuatan suatu Undang-Undang, agar tidak saling bertentangan antar Pasal satu dengan Pasal yang lainnya. <br />Kata Kunci: Kepemilikan; Penguasaan; Objek Jaminan Fidusia; Debitur; Kreditur.</p>

IV.—The Mammoth in Siberia

1880 ◽  
Vol 7 (9) ◽  
pp. 408-414
Author(s):  
Henry H. Howorth
Keyword(s):  
Experimental Method ◽  
The Other ◽  
Boundary Line ◽  
Modern Development ◽  
The Subject ◽  
The One ◽  
Neutral Ground

The overlapping of the sciences is made the subject of much rhetorical writing now-a-days, and its appreciation is one of the most prominent signs of the modern development of the doctrine of Continuity which has been so fruitful in the Philosophy of Discovery. The boundary-line which once separated the geologist and ethnologist has in consequence of this development entirely disappeared, and every one now admits as a postulate that between the two sciences there is a stretch of neutral ground belonging to neither exclusively, and where the students of each must of necessity reap if their harvest is to be complete. Not only so, but it is beginning to be seen that the methods and the directions of the arguments in each science being more or less different—the one partaking much more of the historical, and the other of the experimental method—that it is well that where they overlap the results of each should be closely compared, and thus not only secure a double modicum of certitude, but also suggest fresh veins of untried material where we may put in our mattock with renewed hope of solving some apparently hopeless problems.

Invisible Architectures

2000 ◽  
Vol 13 (1) ◽  
pp. 121-136 ◽  
Author(s):  
Hans-Jörg Rheinberger
Keyword(s):  
Nineteenth Century ◽  
Seventeenth Century ◽  
Historical Development ◽  
Basic Problem ◽  
Life Sciences ◽  
The Other ◽  
Modern Life ◽  
Historical Process ◽  
Strategy I ◽  
The Invisible

The ArgumentIn this essay I will sketch a few instances of how, and a few forms in which, the “invisible” became an epistemic category in the development of the life sciences from the seventeenth century through the end of the nineteenth century. In contrast to most of the other papers in this issue, I do not so much focus on the visualization of various little entities, and the tools and contexts in which a visual representation of these things was realized. I will be more concerned with the basic problem of introducing entities or structures that cannot be seen, as elements of an explanatory strategy. I will try to review the ways in which the invisibility of such entities moved from the unproblematic status of just being too small to be accessible to the naked or even the armed eye, to the problematic status of being invisible in principle and yet being indispensable within a given explanatory framework. The epistemological concern of the paper is thus to sketch the historical process of how the “unseen” became a problem in the modern life sciences. The coming into being of the invisible as a space full of paradoxes is itself the product of a historical development that still awaits proper reconstruction.

scholarly journals Comparison of methods for obtaining doubled haploids of carrot

2017 ◽  
Vol 86 (2) ◽  
Author(s):  
Waldemar Kiszczak ◽  
Urszula Kowalska ◽  
Agata Kapuścińska ◽  
Maria Burian ◽  
Krystyna Górecka
Keyword(s):  
Plant Regeneration ◽  
Doubled Haploid ◽  
Aspartate Aminotransferase ◽  
Doubled Haploids ◽  
The Other ◽  
Plant Production ◽  
Comparison Of Methods ◽  
Anther Cultures ◽  
Induction Stage ◽  
Main Factor

Doubled haploid lines of carrot can be obtained through androgenesis in anther cultures and in isolated microspore cultures. The two methods were compared using three carrot cultivars (‘Kazan F1’, ‘Feria F1’, and ‘Narbonne F1’) at the androgenesis induction stage, during plant regeneration from embryos, and during acclimatization of androgenetic plants as well as their characterization. It was found that cultivar was the main factor affecting the efficiency at each stage of plant production in both anther and isolated microspore cultures. The efficiency of androgenesis in anther cultures of ‘Feria F1’ was considerably higher in comparison with isolated microspore cultures, and more plants were obtained from the embryos of androgenesis-cultured plants. In ‘Kazan F1’ and ‘Narbonne F1’, more acclimatized androgenetic plants were produced from anther cultures. Ploidy assessment of acclimatized plants of ‘Narbonne F1’ showed that the majority of the plants in the population derived from anther cultures had a doubled chromosome (DH) set. On the other hand, the majority of plants obtained from isolated microspore cultures were haploids. When assessing homozygosity, it was found among plants obtained in anther cultures that the percentage of homozygotes for phosphoglucose isomerase (PGI) and aspartate aminotransferase (AAT) depended on the cultivar. In contrast, the majority of plants derived from isolated microspore cultures were homozygous regardless of cultivar.

Sign in / Sign up

Export Citation Format

Share Document