scholarly journals Critical Distance of the Seismic Waves’ Impact in Disintegration of Rock Blasting

2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Dušan Kudelas ◽  
Blažej Pandula ◽  
Michal Cehlár ◽  
Marcela Taušová ◽  
Ján Koščo
Keyword(s):  
Critical Point ◽  
Seismic Waves ◽  
Critical Distance ◽  
Rock Blasting ◽  
Significant Difference ◽  
Explosive Charges ◽  
Speed Of Propagation ◽  
The Individual ◽  
The Impact

The presented paper deals with attenuation of seismic waves, which depends on the degree of disintegration of the rock environment in which seismic waves are propagated due to the explosion of explosive charges during blasting operations. Measurements of the impact of seismic waves were conducted to determine the best possible way to absorb these waves. The aim of the article is to identify the existence of a critical distance and the determination of the critical point from which the propagation of the velocity is not dependent on the type of deposit and the environment in which the seismic wave propagates. Statistical methods were used for these findings. The result is the determination of the distance of 80 m in which the speed on the individual deposits varied. From this limit on, there was no significant difference in the speed of propagation on the individual deposits.

scholarly journals Expressionism in European and Chinese painting (late XIX – early XXI centuries)

2020 ◽  
pp. 27-46
Author(s):  
Jitai Wang
Keyword(s):  
Comparative Analysis ◽  
Mutual Influence ◽  
Cultural Factors ◽  
Chinese Painting ◽  
Oil Painting ◽  
New Concepts ◽  
Similarities And Differences ◽  
The Individual ◽  
The Impact

This article examines the impact of Chinese traditional painting upon the formation of Western expressionism, as well as interprets the influence of Western expressionism upon Chinese painting in expressionist manner of different periods. The author reveals the mutual influence, similarities and differences between Western expressionism and Chinese painting in expressionist manner, Chinese imagery oil painting, Chinese colored ink painting, and Chinese imagery painting in Western style. Based on correlation between the spiritual ideology of painting and artistic form, the author carries out a comparative analysis of spiritual and formal factors of Chinese and Western painting systems for the purpose of determination of their mutual influence, and how it affects the emergence of new concepts in painting. The structure of brush stroke of the artist defines his aesthetic spirit. The article determines the “cyclic” nature of interinfluence processes between Chinese and Western painting systems that stimulate the development of human civilization. The analysis of corresponding cultural factors allows assessing the individual artistic characteristics of painting. Both, Chinese and Western painting systems entered the period when spiritual ideology of painting interacts with the artistic forms, opening the era of “globalization” of the language of painting.

Experimental analysis of cell pattern on grid fin aerodynamics in subsonic flow

2019 ◽  
Vol 234 (3) ◽  
pp. 537-562
Author(s):  
Manish Tripathi ◽  
Mahesh M Sucheendran ◽  
Ajay Misra
Keyword(s):  
Subsonic Flow ◽  
Lift Coefficient ◽  
Aerodynamic Performance ◽  
Aerodynamic Efficiency ◽  
Grid Fin ◽  
Stall Angle ◽  
The Individual ◽  
The Impact ◽  
Control Surfaces

Grid fins consisting of a lattice of high aspect ratio planar members encompassed by an outer frame are unconventional control surfaces used on numerous missiles and bombs due to their enhanced lifting characteristics at high angles of attack and across wider Mach number regimes. The current paper accomplishes and compares the effect of different grid fin patterns on subsonic flow aerodynamics of grid fins by virtue of the determination of their respective aerodynamic forces. Furthermore, this study deliberates the impact of gap variation on aerodynamics of different patterns. Results enunciate enhanced aerodynamic efficiency, and lift slope for web-fin cells and single diamond patterns compared to the baseline model. Moreover, the study indicates improved aerodynamic performance for diamond patterns with higher gaps by providing elevated maximum lift coefficient, delayed stall angle, and comparable drag at lower angles. The study established the presence of an additional effect termed as the inclination effect alongside the cascade effect leading to deviations with respect to lift, stall, and aerodynamic efficiency amongst different gap variants of the individual patterns. Thus, optimization based on the aerodynamic efficiency, stall angle requirements, and construction cost by optimum pattern and gap selection can be carried out through this analysis, which can lead to elevated aerodynamic performance for grid fins.

Diagnosis of the Operation of Power Plants

2007 ◽  
Author(s):  
Jose´ Miguel Gonza´lez-Santalo´ ◽  
Abigail Gonza´lez-Di´az ◽  
Carlos Alberto Marin˜o-Lo´pez
Keyword(s):  
Power Plants ◽  
Environmental Changes ◽  
Environmental Parameters ◽  
Combined Cycle ◽  
Characteristic Parameters ◽  
Operating Variables ◽  
Design Values ◽  
The Individual ◽  
The Impact

A system was developed to diagnose the operation of combined cycle power plants and to determine, when deviations are found, which components are causing the deviations and the impact of each component deviation. The system works by comparing the values of the actual operating variables with some reference values that are calculated by a model that was adjusted to the design heat balances. The model can use the actual values of the environmental parameters as well as the design values, so the effect of environmental changes can be quantified and separated. The determination of the individual equipment impacts is done by adjusting the equipment parameters in order to reproduce the values of the measured variables. The adjustment is done by varying the values of the characteristic parameters of the equipment in order to minimize the sum of the squares of the differences between the values of the measured variables and the calculated values from the model.

scholarly journals Morphometrie study of foramen magnum in human dry skulls

2017 ◽  
Vol 06 (03) ◽  
pp. 188-192
Author(s):  
Sulabha Hanumant Deshpande ◽  
Ashwini Balasaheb Nuchhi ◽  
Balappa Murigeppa Bannur ◽  
Babasaheb Gurusiddappagouda Patil
Keyword(s):  
Physical Violence ◽  
Function Analysis ◽  
Foramen Magnum ◽  
T Test ◽  
Sexual Differences ◽  
Significant Difference ◽  
Morphology And Morphometry ◽  
Mass Disasters ◽  
The Impact

Abstract Background : Anthropologists are often faced with the task of assigning sex to remains that are incomplete, fragmented or damaged as may result from incidents such as mass disasters, airplane crashes, fire, explosions or physical violence. The size of foramen magnum does not change after puberty, not related to age then after. It is this part of the cranial base which can withstand fire explosions as the area is covered by large amount of soft tissue. Hence the foramen magnum was considered for studying the sexual differences in skull. Aims : To analyse the morphology and morphometry of foramen magnum, and the impact of these variables on sex determination of skull. Materials and Methods : 68 male and 68 female adult dry skulls were used for the study. The shapes of foramen magnum were studied. Results : In total, oval was the most common shape comprising of 61.76%, 16.17% arrow head, 11.76% irregular and 10.29% round. The sagittal diameter was 33.0 [28-40] mm in males and 33.0 [28-43] in females and transverse diameters of foramen magnum were 27[21-31] in males and 26.0[23-33]mm in females. Area of foramen magnum was calculated using Radinsky and Teixeria formulae and foramen magnum index was calculated. Mean, standard deviation and median [where ever required] were calculated. Student t test and Mann Whitney U test/ T test were applied. We did not find significant difference between male and female values. Conclusion : Our study did not demonstrate statistically significant difference in expression of sexual differences in the foramen magnum. However if detailed analysis is done with greater sample size by discriminant function analysis, it may prove useful in predicting sex in severely fragmented cranial bases.

scholarly journals A Study on the Impact of Big Five Personality Traits on Consciousness

2016 ◽  
Vol 3 (2) ◽  
Author(s):  
Akriti Srivastava ◽  
Anamika Mishra
Keyword(s):  
Personality Traits ◽  
Big Five ◽  
Big Five Personality Traits ◽  
Big Five Personality ◽  
Psychological Traits ◽  
Significant Difference ◽  
Males And Females ◽  
Neo Five Factor Inventory ◽  
The Individual ◽  
The Impact

Personality is the set of psychological traits and mechanisms within the individual that are organized and relatively enduring and that influence their interactions with, and adaptations to, the intra psychic, physical, and social environments. Personality is the factor which influences other functioning of the individuals, keeping this view in mind its relation with consciousness was thought to be explored, which is awareness, the ability to experience or to feel, wakefulness, having a sense of selfhood, and the executive control system of the mind. Hence, this study was designed to understand the relationship between big five personality traits and consciousness, for this, the data was collected from 200 working and non-working males and females in the age range of 22 to 30 years. Sample was chosen from Banasthali Vidyapith, Tonk; Rajiv Gandhi Technical Institute, Raibarely; and Wipro Company, Bangalore. Measures used were self-consciousness scale (Fenigstein, Scheier &Buss 1975) which is a 23 item questionnaire and personality questionnaire: NEO Five-Factor Inventory-3 (NEO-FFI-3). This questionnaire was developed by Paul T. Costa, Jr and Robert R. McCrae (1989). The result indicated that openness and conscientiousness are significantly positively related with consciousness and openness emerged out as the significant predictor of consciousness. Also the significant difference was found between males and females in terms of consciousness. This study is unique in its endeavor and creates scope for further exploration in this field.

scholarly journals Impact of the Winding Angle of the Auger Blade on the Loading Process With Milling Auger Drums

2020 ◽  
Vol 3 (1) ◽  
pp. 241-250
Author(s):  
Tomasz Wydro
Keyword(s):  
Milling Process ◽  
Design Parameters ◽  
Mining Machine ◽  
Loading Process ◽  
Auxiliary Process ◽  
Correct Determination ◽  
The Individual ◽  
The Impact ◽  
Winding Angle

AbstractThis publication addresses the impact of selected design parameters of milling auger cutting drums on the loading process, and above all the winding angle of the auger blade. The loading process is often referred to as an auxiliary process because the milling process is considered to be the dominant throughout the work of the cutting drum. The correct determination of the relationship between the mining process and the loading process allows to understand how the individual design and kinematic parameters of the mining drums and the mining machine on which they are installed affect each other. The publication discusses the problem of loading with milling cutting drums and ways to increase its efficiency. The research results of the loading process have been presented, affecting the efficiency of this process in the aspect of various angles of inclination of the auger blades. Based on the tests, conclusions have been formulated that allow for the possible selection of an appropriate winding angle for the auger blade, depending on the granulation of spoil.

scholarly journals Amplitude Modulated Noise for Tinnitus Suppression in Tonal and Noise-Like Tinnitus

2019 ◽  
Vol 24 (6) ◽  
pp. 309-321 ◽  
Author(s):  
Stefan Schoisswohl ◽  
Johannes Arnds ◽  
Martin Schecklmann ◽  
Berthold Langguth ◽  
Winfried Schlee ◽  
...  
Keyword(s):  
Past Research ◽  
Acoustic Stimulation ◽  
Short Term ◽  
Novel Approach ◽  
Different Types ◽  
Pure Tones ◽  
Residual Inhibition ◽  
The Individual ◽  
The Impact

Background: The phenomenon of short-term tinnitus suppression by different forms of acoustic stimulation is referred to as residual inhibition (RI). RI can be triggered in the majority of tinnitus cases and was found to be depending on the used intensity, length or types of sounds. Past research already stressed the impact of noise stimulation as well as the superiority of amplitude modulated (AM) pure tones at the individual tinnitus frequency for RI in tonal tinnitus. Recently a novel approach for the determination of noise-like tinnitus characteristics was proposed. Objectives: The aim of the present study was to investigate whether in participants with noise-like tinnitus RI can be increased by AM noise stimuli according to the individual tinnitus frequency range. Methods: For this purpose the individual tinnitus characteristics (noise-like and tonal tinnitus) of 29 people affected by tinnitus (mean age = 55.59, 7 females, mean tinnitus duration = 159.97 months) were assessed via customizable noise-band matching. The objective was to generate bandpass filtered stimuli according to the individual tinnitus sound (individualized bandpass filtered [IBP] sounds). Subsequently, various stimuli differing in bandpass filtering and AM were tested with respect to their potential to induce RI. Participants were acoustically stimulated with 7 different types of stimuli for 3 min each and had to rate the loudness of their tinnitus after each stimuli. Results: Results indicate a general efficacy of noise stimuli for the temporary suppression of tinnitus, but no significant differences between AM and unmodulated IBP. Significantly better effects were observed for the subgroup with noise-like tinnitus (n = 14), especially directly after stimulation offset. Conclusions: The study at hand provides further insights in potential mechanisms behind RI for different types of tinnitus. Beyond that, derived principles may qualify for new or extend current tinnitus sound therapies.

ANALISI DAMPAK BENDUNGAN PANDANDURI TERHADAP USAHATANI PADI SAWAH DI KECAMATAN SAKRA BARAT KABUPATEN LOMBOK TIMUR

2021 ◽  
Vol 1 (2) ◽  
pp. 18-26
Author(s):  
Abdur Rahim
Keyword(s):  
Rice Paddy ◽  
Lowland Rice ◽  
Rice Farming ◽  
Productivity Level ◽  
Significant Difference ◽  
Survey Technique ◽  
The Difference ◽  
The Impact ◽  
The Village

This study aims to determine the impact of the Pandan Duri dam on changes in the Crop Index (IP) and changes in the productivity level of rice paddy farming in West Sakra District, East Lombok Regency. The method in this research is descriptive, data collection is done by survey technique. Determination of the number of samples as many as 30 people is done by sampling quota and taking farmers in each village is done by proportional random sampling and determining the village as a sample is done by purposive sampling. The results showed that: 1) The total planting index (IP) of lowland rice before the Pandan Duri dam in West Sakra District was 1.39 and after 2.12. This means that the existence of the Pandan Duri dam can have an impact on the difference in the Crop Index (IP) of lowland rice farming in Sakra District and, 2) The average productivity of rice before the Pandan Duri dam in West Sakra District was 49,682 Kw/Ha while after the Pandan Duri dam was 57,267 Kw/Ha and there was a significant difference at the alpha 5% (0,05) level.or in the other word, that the existence of Pandan Duri development has real/significant impact on the productivity of lowland rice farming in West Sakra District, East Lombok Regency

Impact of Pharmacist Education on Inhaler Technique and Adherence in an Outpatient Clinic

2021 ◽  
pp. 001857872110468
Author(s):  
Bianca Mayzel ◽  
Sarah Muench ◽  
Colleen Lauster
Keyword(s):  
Inhaler Technique ◽  
Asthma Control Test ◽  
Test Study ◽  
Significant Difference ◽  
Post Test ◽  
Technique Evaluation ◽  
The Individual ◽  
The Impact ◽  
Pharmacist Education

Background and Objectives: To assess the impact that pharmacist education has on proper inhaler technique and adherence in a teaching clinic. Methods: This was prospective, non-randomized, pre-test/post-test study. Patients were 18 years or older, had a diagnosis of asthma or COPD, and prescribed at least 1 inhaled medication. Initial visits consisted of a baseline asthma control test (ACT) or COPD assessment test (CAT), the Test of Adherence to Inhalers (TAI), and a baseline inhaler technique evaluation. The pharmacist then educated the patient. Then inhaler technique was assessed again (post-education inhaler technique evaluation #1). Follow-up visits occurred 4 to 8 weeks later. ACT or CAT and TAI test were administered and inhaler technique was assessed again (post-education inhaler technique #2). The primary outcome was the comparison of the percentage of correct steps performed from baseline to post-education inhaler technique evaluation #1 and from baseline to post-education inhaler technique evaluation #2. Results: Eighteen patients were included, with a mean age of 58 years old. Over half had asthma, were female and African American. There was a significant difference in inhaler technique from baseline to post-education inhaler evaluation #1 and from baseline to post-education inhaler evaluation #2. The most common step missed was no exhalation before inhalation. There was no significant difference when comparing the individual and overall TAI test scores from initial to follow up visit. Conclusions: This study supports pharmacist-led inhaler technique education.

Prevalence and severity of tail lesions as a possible welfare indicator for rabbit does

2019 ◽  
Vol 28 (4) ◽  
pp. 511-518
Author(s):  
J Bill ◽  
SL Rauterberg ◽  
J Stracke ◽  
N Kemper ◽  
M Fels
Keyword(s):  
Animal Welfare ◽  
Scoring System ◽  
Animal Husbandry ◽  
Behavioural Disorders ◽  
Observer Reliability ◽  
Tail Biting ◽  
Significant Difference ◽  
The Individual ◽  
The Impact

The impact of behavioural disorders on animal welfare in modern animal husbandry has been much debated. While other abnormal behaviours have been explored at length, there are a paucity of studies on tail-biting in rabbits (Oryctolagus cuniculus). In the present study, severe tail lesions were observed in group-reared rabbit does on a commercial rabbit farm. In the subsequent investigations, the occurrence of tail lesions in 219 rabbit does from nine batches was compared between group- or single-housing and a scoring system recording the severity of tail lesions was developed and verified. This five-grade scoring system was applied to evaluate the progression of prevalence and severity of tail lesions in 21 groups during rearing in two batches. The results revealed a significant difference in the score level between housing types with a higher prevalence of injured tails in group- (60.4%) compared to single-reared (4.0%) does. An increase in severity and frequency of tail lesions was observed in groups during the course of a rearing period. Furthermore, the established scoring system was characterised by adequate observer reliability. Overall, tail injuries occurred on a regular basis in the investigated rearing groups, indicating tail-biting to be a prevalent problem. This could be considered relevant in terms of animal welfare, both for the animal doing the biting and the individual being bitten. The findings draw attention to an inadequately described problem in rabbit husbandry. However, the search for preventive measures needs to scrutinise the role of single-housing, without failing to consider the gregarious nature of rabbits.

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