scholarly journals Video Slice: Image Compression and Transmission for Agricultural Systems

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3698
Author(s):  
Takaaki Kawai
Keyword(s):  
Mobile Communication ◽  
Agricultural Systems ◽  
Medium Access ◽  
Video Encoder ◽  
The Past ◽  
Operation Costs ◽  
Automation Systems ◽  
The Difference ◽  
Video Slice ◽  
Control Layer

When agricultural automation systems are required to send cultivation field images to the cloud for field monitoring, pay-as-you-go mobile communication leads to high operation costs. To minimize cost, one can exploit a characteristic of cultivation field images wherein the landscape does not change considerably besides the appearance of the plants. Therefore, this paper presents a method that transmits only the difference data between the past and current images to minimize the amount of transmitted data. This method is easy to implement because the difference data are generated using an existing video encoder. Further, the difference data are generated based on an image at a specific time instead of the images at adjacent times, and thus the subsequent images can be reproduced even if the previous difference data are lost because of unstable mobile communication. A prototype of the proposed method was implemented with a MPEG-4 Visual video encoder. The amount of transmitted and received data on the medium access control layer was decreased to approximately 1/4 of that when using the secure copy protocol. The transmission time for one image was 5.6 s; thus, the proposed method achieved a reasonable processing time and a reduction of transmitted data.

Smart Estimation Ver-H.1.0

2018 ◽  
Author(s):  
Sigit Haryadi
Keyword(s):  
Sample Size ◽  
Confidence Level ◽  
Time Span ◽  
Regression Equation ◽  
Weight Factor ◽  
The Past ◽  
Level Of Confidence ◽  
The Future ◽  
Future Value ◽  
The Difference

We cannot be sure exactly what will happen, we can only estimate by using a particular method, where each method must have the formula to create a regression equation and a formula to calculate the confidence level of the estimated value. This paper conveys a method of estimating the future values, in which the formula for creating a regression equation is based on the assumption that the future value will depend on the difference of the past values divided by a weight factor which corresponding to the time span to the present, and the formula for calculating the level of confidence is to use "the Haryadi Index". The advantage of this method is to remain accurate regardless of the sample size and may ignore the past value that is considered irrelevant.

scholarly journals The Burden of the Nondiversifiable Risk of Entrepreneurship

2010 ◽  
Vol 100 (3) ◽  
pp. 1163-1194 ◽  
Author(s):  
Robert E Hall ◽  
Susan E Woodward
Keyword(s):  
Relative Risk ◽  
Risk Aversion ◽  
Venture Capital ◽  
Dynamic Program ◽  
Certainty Equivalent ◽  
Important Class ◽  
Relative Risk Aversion ◽  
The Past ◽  
Equity Value ◽  
The Difference

Entrepreneurship is risky. We study the risk facing a well-documented and important class of entrepreneurs, those backed by venture capital. Using a dynamic program, we calculate the certainty-equivalent of the difference between the cash rewards that entrepreneurs actually received over the past 20 years and the cash that entrepreneurs would have received from a risk-free salaried job. The payoff to a venture-backed entrepreneur comprises a below-market salary and a share of the equity value of the company when it goes public or is acquired. We find that the typical venture-backed entrepreneur received an average of $5.8 million in exit cash. Almost three-quarters of entrepreneurs receive nothing at exit and a few receive over a billion dollars. Because of the extreme dispersion of payoffs, an entrepreneur with a coefficient of relative risk aversion of two places a certainty equivalent value only slightly greater than zero on the distribution of outcomes she faces at the time of her company's launch. (JEL G24, G32, L26, M13)

The Flynn Effect

2018 ◽  
Author(s):  
Angela Duckworth ◽  
Keyword(s):  
Graduate School ◽  
The United States ◽  
Delay Of Gratification ◽  
Average Score ◽  
Past Century ◽  
Political Scientist ◽  
Abstract Reasoning ◽  
Flynn Effect ◽  
The Past ◽  
The Difference

In tandem with increases in delay of gratification, the human capacity for abstract reasoning has increased enormously over the past century. This phenomenon is called the Flynn Effect, after the political scientist who discovered it. I first learned about the Flynn Effect in graduate school. I remember thinking it was impossible. How could it be that as a species, we're getting smarter? And not just a little bit smarter. The size of the Flynn Effect is staggering: more than 30 IQ points—the difference between getting an average score on a standard intelligence test versus qualifying as mentally gifted. Gains are comparable in all areas of the United States and, indeed, around the world.

Avoiding Psychiatric Disability Overdiagnosis, Part 1: General Disability and Occupational Disability—Going Beyond Medical Impairment Assessments

2021 ◽  
Vol 26 (4) ◽  
pp. 3-7
Author(s):  
Fabien Gagnon ◽  
Les Kertay
Keyword(s):  
Mental Health ◽  
Work Disability ◽  
Well Being ◽  
Psychiatric Disability ◽  
Disability Assessment ◽  
Health Work ◽  
Occupational Disability ◽  
The Past ◽  
The Difference ◽  
Mental Health Work

Abstract Claims of occupational psychiatric disability have increased considerably over the past 20 years. To avoid psychiatric disability overdiagnosis, it is important to improve the clinical assessment of mental health work disability. This article discusses general disability issues and their impact on individual well-being, social participation, and frequently associated poverty. It defines the difference between impairment assessment and disability assessment, explores three common disability models, and raises issues about psychiatric disability and its potential overdiagnosis.

scholarly journals Frequency of deep convective clouds in the tropical zone from 10 years of AIRS data

2013 ◽  
Vol 13 (21) ◽  
pp. 10795-10806 ◽  
Author(s):  
H. H. Aumann ◽  
A. Ruzmaikin
Keyword(s):  
Brightness Temperature ◽  
Frequency Of Occurrence ◽  
Tropical Zone ◽  
Convective Clouds ◽  
The Past ◽  
Atmospheric Window ◽  
Deep Convective Clouds ◽  
Sst Anomaly ◽  
The Difference ◽  
Global Precipitation

Abstract. Deep convective clouds (DCCs) have been widely studied because of their association with heavy precipitation and severe weather events. Changes in the properties of DCCs are likely in a changing climate. Ten years of data collected by Atmospheric Infrared Sounder (AIRS) allow us to identify decadal trends in frequency of occurrence of DCCs over land and ocean. In the past, DCCs have been identified in the thermal infrared by three methods: (1) thresholds based on the absolute value of an atmospheric window channel brightness temperature; (2) thresholds based on the difference between the brightness temperature in an atmospheric window channel and the brightness temperature centered on a strong water vapor absorption line; and (3) a threshold using the difference between the window channel brightness temperature and the tropopause temperature based on climatology. Simultaneous observations of these infrared identified DCCs with the Advanced Microwave Sounding Unit–Humidity Sounder for Brazil (AMSU-HSB) using 183 GHz water channels provide a statistical correlation with microwave deep convection and overshooting convection. In the past 10 years, the frequency of occurrence of DCCs has decreased for the tropical ocean, while it has increased for tropical land. The area of the tropical zone associated with DCCs is typically much less than 1%. We find that the least frequent, more extreme DCCs show the largest trend in frequency of occurrence, increasing over land and decreasing over ocean. The trends for land and ocean closely balance, such that the DCC frequency changed at an insignificant rate for the entire tropical zone. This pattern of essentially zero trend for the tropical zone, but opposite land/ocean trends, is consistent with measurements of global precipitation. The changes in frequency of occurrence of the DCCs are correlated with the Niño34 index, which defines the sea surface temperature (SST) anomaly in the east-central Pacific. This is also consistent with patterns seen in global precipitation. This suggests that the observed changes in the frequency are part of a decadal variability characterized by shifts in the main tropical circulation patterns, which does not fully balance in the 10-year AIRS data record. The regional correlations and anti-correlations of the DCC frequency anomaly with the Multivariate ENSO Index (MEI) provide a new perspective for the regional analysis of past events, since the SST anomaly in the Nino34 region is available in the form of the extended MEI from 1871.

scholarly journals Esham, the Origin of Sukuk for Facing the Crisis: Historical Experience

2021 ◽  
Vol 10 (1) ◽  
pp. 45
Author(s):  
Khairunnisa Musari
Keyword(s):  
Lower Cost ◽  
Low Cost ◽  
Foreign Debt ◽  
Historical Experience ◽  
The Public ◽  
Goods And Services ◽  
The Past ◽  
State Budgets ◽  
The Difference ◽  
The Government

Pandemic brings a crisis. This makes world leaders have to work hard and smartly in managing state budgets. During the heyday of Islam, Muslims also faced crises. Given that time the power of Islam mastered many areas of the world, it can be assumed that the crisis that occurred in the past was a global crisis as it is happening today. The difference is the crisis that occurred at the time because of losing the war. This paper tries to describe the historical experience of the esham, one of the fiscal instruments in the Islamic world that helped the Ottoman Empire overcome the crisis. Esham has mobilized low-cost funds from the public in a relatively concise time. Esham served as a better choice than looking for foreign debt. As the origin of sukuk, esham has simpler structure so that can be used as an alternative to sukuk with a lower cost. To deal with a crisis, esham may intervene in the economy. Esham funds to the real sector in turn will help the government drive the economy as well as control prices in the market for goods and services. Therefore, esham has the potential in facing the crisis.

scholarly journals IN INTRA-ABDOMINAL INFECTIONS AND PERITONITIS

2021 ◽  
pp. 90-96
Author(s):  
A. V. Kotov ◽  
V. I. Desyaterik ◽  
S. P. Mikhno
Keyword(s):  
Absolute Number ◽  
Multidrug Resistant ◽  
E Coli ◽  
The Past ◽  
Rational Therapy ◽  
Acinetobacter Spp ◽  
The Difference ◽  
Abdominal Infections ◽  
Staphylococcus Spp ◽  
Klebsiella Spp

Summary. Purpose of the reserche. To study changes in microflora and sensitivity of isolated strains to antibiotics using bacteriological research methods for intra-abdominal infections and peritonitis to determine their resistance when planning antibiotic therapy. Results and discussion. The paper presents data from a retrospective analysis of the results of studies of microflora and its resistance in intra-abdominal infections (IAI) and peritonitis for 2 periods: I period — from january 2007 to december 2008, II period — from january 2018 to december 2019. The difference between period II and I was in the increase in the number of individual pathogenic strains of microorganisms. Thus, the number of Klebsiella spp. increased from 13.8 % to 23.8 %, which in absolute number of their total number amounted to a 73.5 %, ranking second in the overall structure among pathogens sown in IAI and peritonitis. The number of strains of Staphylococcus spp., Enterobacter spp., Acinetobacter spp. has also increased by 2.4–5.8 % respectively. Among the strains Klebsiella spp., E. coli and Staphylococcus spp. the number of poly- and multi-polyresistant forms has increased. Thus, the number of such forms among Klebsiella spp. increased from 19.2 to 44.5 %, Staphylococcus spp. — from 43.8 to 67.1 % and E. coli from 18.2 to 23.5 %, respectively. Conclusions. Over the past 10 years, with IAI and peritonitis, the most significant changes were revealed on the part of pathogenic strains of Klebsiella spp., Staphylococcus spp. and Acinetobacter spp. Multidrug resistant strains were predominantly susceptible to carbapenems, semisynthetic ureidopenicillins, aminoglycosides, glycopeptides, oxazalidinones, phosphonoic acid derivatives. In the context of changes in the microbial landscape observed over the past decade, an increase in the number of poly- and multi-resistant forms of pathogenic microorganisms in IAI and peritonitis, the choice of antibiotics for rational therapy should be based solely on bacterioscopy and antibiograms.

scholarly journals Behavior and Energy Losses of Cows during the Period of Low Temperatures

2021 ◽  
Vol 24 (5) ◽  
pp. 46-53
Author(s):  
Oleksandr O. Borshch ◽  
Oleksandr V. Borshch ◽  
Yurii Mashkin ◽  
Vasyl Malina ◽  
Maxim Fedorchenko
Keyword(s):  
Low Temperatures ◽  
Heat Insulation ◽  
Energy Losses ◽  
Strong Wind ◽  
The Past ◽  
Air Temperatures ◽  
The Difference ◽  
And Behavior ◽  
Positive Effect ◽  
Moderate Climate

Over the past 20 years, dairy farms in Ukraine have been actively introducing the keeping of cows in easy-to-assemble premises. However, in a moderate climate (with four distinct year seasons), the issues of microclimate, energy losses of animals and their behavior during the cold period of the year for keeping in such premises have not been fully studied. The purpose of this work was to study the influence of the heat insulation elements use of side curtains in easy-to-assemble premises during the period of low temperatures on microclimate, energy outgoings for thermoregulation and behavior of cows. The research conducted in the central part of Ukraine (Kyiv region). The research was conducted during January-February (29-43 days of the year) 2021. This period characterized by low average daily temperatures of -12.2– -18.7°С, strong wind gusts and daily precipitation in the form of snow. Two easy-toassemble premises for 400 heads were used for research. Parameters of placements (LxWxH): 150х32х10.5 m. The first one was without the use of curtains heat insulation elements, and the second one was with these elements of heat insulation. It was found that the use of polycarbonate wall heat insulation elements had a positive effect on the microclimate in the placement during the period of low temperatures. Indicators of average daily air temperatures in the placement were 3.2 and 8.8°C higher compared to the temperature in the same premise without the use of heat insulation elements and the environment. The wind speed also differed by 0.18 and 11.04 m/s, respectively. In addition, the heat insulation of the walls affected the temperature under the lying cow (+1.8°C), energy outgoings for thermoregulation (-1.93 MJ) and the number of cows that lay in the period of the lowest temperatures (+3.23-9.83%) compared to the placement without heat insulation elements. The difference in temperature of rubber carpet in the compared premises was significant: +3.3°C in the premises with heat insulation elements compared to the premises without heat insulation

scholarly journals SELEKSI KINERJA SAHAM TERCATAT DI BURSA EFEK JAKARTA MENGGUNAKAN MODEL JENSEN PADA MASA TRANSISI SIKLUS EKONOMI

2006 ◽  
Vol 5 (1) ◽  
Author(s):  
Mohamad Samsul
Keyword(s):  
Lead Time ◽  
Stock Return ◽  
Stock Selection ◽  
Training Set ◽  
Expected Return ◽  
Stock Performance ◽  
The Past ◽  
The Difference ◽  
Actual Return ◽  
Model Approach

The purpose of this research is to select the undervalued stock based on the Jensen's model approach. Data used is monthly stock return for 24 months during period of the year 2004 to 2005. Population used is 314 kind of stocks. The result of stock selection shows average undervalued stock of 53 or 17% of stock available for the year 2005. By experiment of 6 kind of initial set, 1 month lead time and 12 time training set, the result shows that the Jensen's model is not enough accurate to estimate the return for the next one month. The average monthly expected return of 13,7% and actual return of 2,9% shows the difference statistically significant. Eventhough, the actual return 2,9% still higher than market return IHSG BEJ of 1,6% on the monthly average. The correlation between the past stock performance and the future stock return is negative and not significant. The difference between return of high past stock performance and low past stock performance is not significant. The correlation between past beta and stock return is not significant. The difference between return of high past beta and low past beta is not significant.

scholarly journals Simono Daukanto BUDĄ Senowęs-Letuwiu Kalnienu ĩr Ƶamajtiu (1845) šaltiniai

2020 ◽  
pp. 217-248
Author(s):  
Roma Bončkutė
Keyword(s):  
National Identity ◽  
Cultural History ◽  
Comparative Linguistics ◽  
Language And Culture ◽  
The Past ◽  
The Future ◽  
History Of ◽  
The Difference ◽  
Regional Historiography

SOURCES OF SIMONAS DAUKANTAS’S BUDĄ SENOWĘS-LËTUWIÛ KALNIENÛ ĨR ƵÁMAJTIÛ (1845) The article investigates Simonas Daukantas’s (1793–1864) BUDĄ Senowęs-Lëtuwiû Kalnienû ĩr Ƶámajtiû (The Character of the Lithuanian Highlanders and Samogitians of the Old Times, 1845; hereafter Bd) with regards to genre, origin of the title, and the dominant German sources of the work. It claims that Daukantas conceived Bd because he understood that the future of Lithuania is closely related to its past. A single, united version of Lithuanian history, accepted by the whole nation, was necessary for the development of Lithuanian national identity and collective feeling. The history, which up until then had not been published in Lithuanian, could have helped to create the contours of a new society by presenting the paradigmatic events of the past. The collective awareness of the difference between the present and the past (and future) should have given the Lithuanian community an incentive to move forward. Daukantas wrote Bd quickly, between 1842 and May 28, 1844, because he drew on his previous work ISTORYJE ƵEMAYTYSZKA (History of the Lithuanian Lowlands, ~1831–1834; IƵ). Based on the findings of previous researchers of Daukantas’s works, after studying the dominant sources of Bd and examining their nature, this article comes to the conclusion that the work has features of both cultural history and regional historiography. The graphically highlighted form of the word “BUDĄ” used in the work’s title should be considered the author’s code. Daukantas, influenced by the newest culturological research and comparative linguistics of the 18th–19th centuries, propagated that Lithuanians originate from India and, like many others, found evidence of this in the Lithuanian language and culture. He considered the Budini (Greek Βουδίνοι), who are associated with the followers of Buddha, to be Lithuanian ancestors. He found proof of this claim in the language and chose the word “būdas” (character), which evokes aforementioned associations, to express the idea of the work.

Sign in / Sign up

Export Citation Format

Share Document