scholarly journals Results of Hungarian field test trials set up for establishing new maximum permitted N dose values

2020 ◽  
Keyword(s):  
Field Test ◽  
N Dose ◽  
Set Up

scholarly journals A Study of Millisecond Blasting on High Bench at Barun Iron Ore Operation

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Pengfei Zhang ◽  
Runcai Bai ◽  
Xue Sun ◽  
Haoran Li ◽  
Honglu Fei ◽  
...  
Keyword(s):  
Field Test ◽  
Large Scale ◽  
Iron Ore ◽  
Short Delay ◽  
Iron And Steel ◽  
Field Calibration ◽  
Bench Blasting ◽  
Set Up ◽  
Electronic Detonator ◽  
High Bench

To improve the productivity and efficient of modern large-scale open-cut mines, a number of technologies are developed and trialed, including new blasting equipment, larger blasting holes, high benches, air spacing, and short-delay blasting within holes. However, the relative blasting parameters need field calibration and further investigation of theories on these techniques are required. This paper studied the open-cut bench blasting at Barun Eboxi Mine of Baotou Iron and Steel Group via theoretical analysis on shock wave, numerical simulation, and field test. According to the technical conditions of the site, three sets of vertical boreholes at 310 mm diameter were drilled on 24 m high batter; and three sets of air-spaced charges were set up. The digital electronic detonator was used to initiate at millisecond intervals. The study found that under the condition of 24 m high bench, the use of intermediate air interval is beneficial to the rock fragmentation. The delay time within the hole is 3-8 ms. The bottom of the lower explosives and the top of the upper explosives were devised for initiation to optimize the initiation location. The peak effective stress points are 63.6%, 52.2%, and 8.9% higher, respectively. The field test of high-bench intrahole millisecond blasting in Barun Eboxi mine shows that the intrahole millisecond blasting parameters proposed in this study are feasible.

Abstract P182: Usefulness of Mobile Telemedicine System in Real-time Transmission of Out-of-hospital 12-lead ECG

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Hiroshi Nonogi ◽  
Hiroyuki Yokoyama ◽  
Yoritaka Otsuka ◽  
Yoichiro Kasahara ◽  
Yu Kataoka ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Emergency Department ◽  
Real Time ◽  
Field Test ◽  
Vital Signs ◽  
Telemedicine System ◽  
Coronary Syndrome ◽  
Real Time Transmission ◽  
Set Up

[Purpose] AHA/ACC guidelines recommend routine use of 12-lead ECG and advance notification for patients with acute coronary syndrome. However, transmission of out-of-hospital 12-lead ECG to emergency department is still not spread and ECG interpretation on the prehospital and emergency department is not established. Therefore, we have developed and tested the clinical usefulness of the mobile telemedicine system to transmit 12-lead ECG between moving ambulances and physicians in cardiovascular emergency. [Method] We set up the mobile telemedicine using the third-generation digital mobile phone to promote communications between an ambulance and diverse hospital. Compatibility issue among device vendors was solved by the implementation of open-standard medical waveform encoding rule with motion noise-reduction system. Real time 12-lead ECG was transferred together with vital signs and live video during transfer the patient by an ambulance. The performance of the mobile telemedicine system in the field-test was checked to transfer 12-lead ECG in different scenarios such as transferred ECG from a volunteer moving hand or leg, coughing or twisting body in an ambulance driving on common road or highway. In the next step, we set up the mobile telemedicine on an ambulance to promote communications between moving 5 ambulances in Suita-city and National Cardiovascular Center since 2008 June 2. To establish the efficacy of real-time transmission of out-of-hospital 12-lead ECG, the time-line from the onset of acute myocardial infarction to reperfusion is analyzed. [Results] Totally 36 patters of 12-lead ECG were checked in the field test and all of them were comparable than those original one in the ambulance. Time-delay for transmission of 12 lead ECG was within 10seconds and for one-lead ECG monitoring and vital signs including BP, HR and oxygen saturation was 1 second without the difficulties for the interpretation. [Conclusion] Those results indicate the usefulness and reliability of transmission of 12-lead ECG using the mobile telemedicine system from the ambulance. Further investigation is on-going to determine the efficacy in clinical conditions to reduce the treatment delay for acute myocardial infarction.

The Study of the Start and Stop Cycle of the Gathering and Transportation by Electrical Heating

2013 ◽  
Vol 734-737 ◽  
pp. 1503-1507
Author(s):  
Feng Yun He ◽  
Yan Ru Gao ◽  
Si Chen
Keyword(s):  
Mathematical Model ◽  
Physical Model ◽  
Field Test ◽  
Oil Field ◽  
Electrical Heating ◽  
Low Permeability ◽  
Operational Result ◽  
Set Up

The gathering and transportation technology on electrical heating is one of major ways of the gathering and transportation for low permeability and low-yielding oil field, this paper has set up the physical model and mathematical model of the gathering and transportation that is controlled by time. By solving the model, we can determine the start and stop cycle of the gathering and transporting pipelines and dendriform net by electrical heating. And we also have conducted field test, the experiment turns out that the error of the result which is calculated by model compared with actual operational result is less than 1%, the phenomenon meets the requirements of production, the results can be used to determine the start and stop cycle of the gathering and transportation by electrical heating in the process of production.

scholarly journals Field test on the palatability of the subterranean termites to pine wood with various treatments

2020 ◽  
Vol 21 (12) ◽  
Author(s):  
Arinana Arinana ◽  
Ahmad Fannani ◽  
Dodi Nandika ◽  
Noor Haneda
Keyword(s):  
Vapor Pressure ◽  
Field Test ◽  
Subterranean Termite ◽  
Subterranean Termites ◽  
Pressure Treatment ◽  
Attack Frequency ◽  
Termite Species ◽  
Pine Wood ◽  
Set Up ◽  
Pinus Merkusii

Abstract. Ariana, Fannani AR, Nandika D, Haneda NF. 2020. Field test on the palatability of the subterranean termites to pine wood with various treatments. Biodiversitas 21: 5763-5771. One of the keys to successfully determining the subterranean termite species' diversity in an area is using wood samples of their preference. This research aimed to evaluate the palatability of the subterranean termites to pine wood (Pinus merkusii) with boiling, steaming, hot vapor pressure, and oven treatments in the Arboretum of the Faculty of Forestry, IPB University, Bogor, West Java, Indonesia, and to analyze the species and the distribution of the subterranean termites that attacked the samples. The wood samples were 2 cm x 2 cm x 46 cm in size (ASTM D 1758-06). The steaming (100°C), boiling (100°C), and hot vapor pressure (1 bar, 105°C) treatments were carried out for five hours, while the oven treatment (103±2°C) was set up for 48 hours. Wood samples without treatment were also prepared as a control. After the treatments, all the samples were air-dried, sanded, weighed, and installed in the research location. The results showed that four subterranean termite species, i.e., Schedorhinotermes sp., Microtermes sp., Capritermes sp., and Macrotermes sp, were found attacking the wood samples. The highest attack frequency and the highest damage intensity were found in wood samples with hot vapor pressure treatment. Based on the scoring, the preeminent treatment for the wood samples was the hot vapor pressured treatment.

scholarly journals Hayvan Yemi Olarak Kullanılan Şekerpancarı Yapraklarının Nitrat İçeriğine Azot-Bor Uygulamasının ve Zamanın Etkisi

2021 ◽  
Vol 9 (2) ◽  
pp. 395-400
Author(s):  
Bedriye Bilir ◽  
Kadir Saltalı
Keyword(s):  
Sugar Beet ◽  
Animal Feed ◽  
Quality Parameters ◽  
Nitrate Content ◽  
Negative Effects ◽  
Nitrate Accumulation ◽  
Factorial Trial ◽  
N Dose ◽  
Set Up ◽  
Different Doses

Nitrogen (N) and boron (B) fertilization is important for yield and quality in sugar beet cultivation. However, excess nitrogen (N) fertilizers cause negative effects on quality. The increase in nitrate content in sugar beet leaves used as animal feed is one of the quality parameters negatively affected. The aim of this study is to examine the effect of different doses of nitrogen, boron fertilization and time on nitrate accumulation in sugar beet leaves. The study was carried out on a field with a B content of 0.56 mg kg-1 in Elbistan district of Kahramanmaraş province. Experiment random blocks were set up in 3 replications according to factorial trial design. Five different doses of N (0, 9, 18, 27 and 36 kg N da-1) and 4 different doses of B (0, 200, 400, 600 g B da-1) were used in the experiment. Leaf samples were taken in July, August, September and October. According to the results of the research, as the applied N dose increased, the nitrate content of sugar beet leaves increased at statistically significant level. The effect of boron application on nitrate of leaves was not found to be significant. The decrease in nitrate content of sugar beet leaves towards the harvest period was found to be statistically significant. As a result, using sugar beet leaves as animal feed after harvest does not pose a risk to animals in terms of nitrate.

scholarly journals Technical and Economic Viability of Corn with Azospirillum brasilense Associated with Acidity Correctives and Nitrogen

2018 ◽  
Vol 10 (3) ◽  
pp. 213 ◽  
Author(s):  
Fernando S. Galindo ◽  
Marcelo C. M. Teixeira Filho ◽  
Salatiér Buzetti ◽  
Willian L. Rodrigues ◽  
Eduardo H. M. Boleta ◽  
...  
Keyword(s):  
Grain Yield ◽  
Azospirillum Brasilense ◽  
Block Design ◽  
Dolomitic Limestone ◽  
Mineral N ◽  
No Till ◽  
Randomized Block Design ◽  
N Dose ◽  
Set Up ◽  
Biological Nitrogen

There is a lack of more comprehensive research defining how much mineral N can be applied as regards the efficiency of BNF to attain high with Azospirillum brasilense, what is a bacterium that stands out for its biological nitrogen fixation (BNF) in corn crops, reaching economically sustainable yields. Moreover, it would be interesting to investigate the use of silicon, which exerts numerous benefits on grasses, especially when the plants are subjected to biotic and abiotic stresses. The aim of this work was to study a synergistic effect between the inoculation with A. brasilense and the application of silicon, thus enabling a higher efficiency of nitrogen fertilization, evaluating the grain yield of irrigated corn in economic terms. The experiment was conducted in Selvíria, MS, Brazil, under a no-till system, on a Latossolo Vermelho distrófico (Oxisol). The experiment was set up as a randomized block design with four replications, in a 2 × 5 × 2 factorial arrangement consisting of two soil corrective sources (dolomitic limestone and Ca and Mg silicate as source of Si); five doses of N (0, 50, 100, 150 and 200 kg ha-1); with and without inoculation with A. brasilense. The inoculation makes the corn increase much more profitable, irrespective of N doses and corrective source. The N dose of 200 kg ha-1 with dolomitic limestone, associated with inoculation provided greater grain yield. However, the highest economic return was obtained at the N dose of 100 kg ha-1, with dolomitic limestone application and inoculation.

scholarly journals The Open Field test as a tool for behavior analysis in pigs - is a standardization of setup necessary? A systematic review.

2021 ◽  
Author(s):  
Mareike Schulz ◽  
Marcin Kopaczka ◽  
Rene Tolba ◽  
Leonie Zieglowski
Keyword(s):  
Systematic Review ◽  
Open Field ◽  
Field Test ◽  
Open Field Test ◽  
Data Extraction ◽  
Behavioral Changes ◽  
The Novel ◽  
Domestic Pig ◽  
Improve Result ◽  
Set Up

Background: The Open Field test is a common tool to measure anxiety and behavioral changes in rodents. However, scientific findings of rodent experiments may not translate adequately to humans and it has been shown that larger animal models might perform better in that regard. As a result, the number of published studies involving the Open Field test in domestic pig models is increasing. Objective: The aim of our review was to investigate the Open Field set-ups in published studies as well as similarity between performance and parameters published. Results: Following the PRISMA guidelines for reviews we selected 69 studies for data extraction in this systematic review. We were able to determine specific set-up conditions such as size, duration and daytime for most of the included studies and found a high variability within these test specifiers. Conclusion: Results indicate a non-uniform performance of set-up including size, timing, parameters and additional combined tests such as the novel object test. We would like to point out the need for standardization of Open Field test for pigs in order to improve result, comparability and reduce inconsistencies.

The Effects of Drying Techniques on Clay-Rich Soil Texture

1974 ◽  
Vol 32 ◽  
pp. 466-467
Author(s):  
T. G. Naymik
Keyword(s):  
Critical Point ◽  
Liquid Nitrogen ◽  
Liquid Nitrogen Temperature ◽  
Drying Methods ◽  
Air Drying ◽  
Freeze Dried ◽  
Critical Point Drying ◽  
Set Up ◽  
The Relationship ◽  
Quartz Grains

Three techniques were incorporated for drying clay-rich specimens: air-drying, freeze-drying and critical point drying. In air-drying, the specimens were set out for several days to dry or were placed in an oven (80°F) for several hours. The freeze-dried specimens were frozen by immersion in liquid nitrogen or in isopentane at near liquid nitrogen temperature and then were immediately placed in the freeze-dry vacuum chamber. The critical point specimens were molded in agar immediately after sampling. When the agar had set up the dehydration series, water-alcohol-amyl acetate-CO2 was carried out. The objectives were to compare the fabric plasmas (clays and precipitates), fabricskeletons (quartz grains) and the relationship between them for each drying technique. The three drying methods are not only applicable to the study of treated soils, but can be incorporated into all SEM clay soil studies.

Evaluation of Freezing Methods by Low Temperature X-Ray Diffraction

1977 ◽  
Vol 35 ◽  
pp. 330-333
Author(s):  
T. Gulik-Krzywicki ◽  
M.J. Costello
Keyword(s):  
Biological Materials ◽  
Molecular Organization ◽  
X Ray Diffraction ◽  
Glass Capillary ◽  
X Ray ◽  
Rate Dependent ◽  
Before And After ◽  
Freeze Etching ◽  
Diffraction Patterns ◽  
Set Up

Freeze-etching electron microscopy is currently one of the best methods for studying molecular organization of biological materials. Its application, however, is still limited by our imprecise knowledge about the perturbations of the original organization which may occur during quenching and fracturing of the samples and during the replication of fractured surfaces. Although it is well known that the preservation of the molecular organization of biological materials is critically dependent on the rate of freezing of the samples, little information is presently available concerning the nature and the extent of freezing-rate dependent perturbations of the original organizations. In order to obtain this information, we have developed a method based on the comparison of x-ray diffraction patterns of samples before and after freezing, prior to fracturing and replication.Our experimental set-up is shown in Fig. 1. The sample to be quenched is placed on its holder which is then mounted on a small metal holder (O) fixed on a glass capillary (p), whose position is controlled by a micromanipulator.

Eels Under Standing Wave Conditions

1982 ◽  
Vol 40 ◽  
pp. 492-495
Author(s):  
O.L. Krivanek ◽  
J. TaftØ
Keyword(s):  
Standing Wave ◽  
Wave Conditions ◽  
Set Up ◽  
A Site ◽  
Complex Crystal

It is well known that a standing electron wavefield can be set up in a crystal such that its intensity peaks at the atomic sites or between the sites or in the case of more complex crystal, at one or another type of a site. The effect is usually referred to as channelling but this term is not entirely appropriate; by analogy with the more established particle channelling, electrons would have to be described as channelling either through the channels or through the channel walls, depending on the diffraction conditions.

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