Determining Method for Mixing and Compaction Temperature of Modified Asphalt Mixture

2017 ◽  
Vol 744 ◽  
pp. 83-86
Author(s):  
Xiao Hu Wu ◽  
Miao Miao Tian ◽  
Jin Yan
Keyword(s):  
Shear Rate ◽  
Asphalt Mixture ◽  
Test Results ◽  
Determination Method ◽  
Compaction Temperature ◽  
Modified Asphalt ◽  
Specific Temperature ◽  
The Difference ◽  
Relationship Of ◽  
The Relationship

According to the relationship of the viscosity and temperature when the mixture reached Optimum compaction effect and the shear rate, the viscosity shear rate of the testing modified asphalt mixture, 60s-1 has been found. The test results show that the difference between the compaction temperature of the modified asphalt mixture and the compaction temperature under the condition of the best compaction effect is 5°C. It shows that the temperature is satisfied with the specific temperature during construction, so the determination method is workable.

Viscometric Performance Evaluation Of Oil With Respect To Shear Rate, Temperature And Shearing Time

2011 ◽  
Author(s):  
E. G. Goh ◽  
C. S. Kow ◽  
W. B. Wan Nik
Keyword(s):  
Fourier Series ◽  
Shear Rate ◽  
Rheological Models ◽  
Specific Temperature ◽  
The Difference ◽  
Temperature Shear ◽  
Relationship Of ◽  
The Relationship ◽  
Historical Treatment ◽  
Constant Shear Rate

Dalam kajian ini, kami menilai kelakuan asas minyak mineral (Mobil Extra 2T) yang dikenakan tekanan daripada keadaan pegun ke 1900 1/s keterikan pada masa keterikan yang berlainan (60, 300 dan 900 s) dan dikekalkan pada 1900 1/s keterikan di antara 30 dan 60 s, dan kemudiannya dengan pengurangan keterikan sehingga keadaan pegun pada masa keterikan 60, 300 dan 900 s. Proses ini diulangi daripada 40 ke 100°C dengan peningkatan suhu 20°C. Pengukuran kelikatan dilakukan dengan ThermoHaake (Rheometer model RS600) dan pengawal suhu (Haake – Phoenix model C1 35P). Kegagalan persamaan reologi dalam permodelan hubungan kelikatan–keterikan dikenalpasti dan persamaan alternative iaitu siri Fourier dicadang sebagai pengganti dengan nilai R2 bersamaan 0.99. Integrasi siri Fourier daripada 0 ke 1900 1/s telah dilakukan pada lengkung peningkatan dan penurunan keterikan. Keputusan menunjukkan lesapan–keterikan ( τL ) boleh diwakili dengan perbezaan nilai integrasi di antara lengkung peningkatan dan penurunan keterikan, pada satu suhu dan masa keterikan. Kaedah ini dicadangkan untuk menilai prestasi minyak pada pemerolehan semula kelikatan selepas dikenakan keterikan. Kata kunci: Kelikatan; suhu; keterikan; persamaan reologi; siri Fourier In this study, we evaluate the fundamental behaviour of mineral oil (Mobil Extra 2T) that was stressed from stagnant condition to a shear rate of 1900 1/s in different shearing time (60, 300 and 900 s), remained at constant shear rate of 1900 1/s between 30 to 60 s, and continued by decreasing shear rate to stagnant condition at specific shearing time of 60, 300 and 900 s. This process was repeated from 40 to 100°C with an interval of 20°C. Viscosity measurement was carried out by ThermoHaake (Rheometer model RS600) and temperature control (Haake – Phoenix model C1 35P). Failure of rheological models in modeling the relationship of viscosityshear rate was demonstrated and alternative model i.e. Fourier series was proposed as a substitution with a high R–squared value of 0.99. Integration of Fourier series from 0 to 1900 1/s was carried out on increasing and decreasing shear rate–generated curves. Results showed a consistent trend of lost–shear stress ( τL ), represented by the difference of integration value of increasing and decreasing shear rate–generated curves, at specific temperature and shearing time. This method is proposed to evaluate the performance of oil on viscosity recovery after historical treatment of shear rate. Key words: Viscosity; temperature; shear rate; rheological models; Fourier series

Problematic Internet Use digunakan Ketika Kesepian pada Remaja

2020 ◽  
Vol 14 (1) ◽  
pp. 45-60
Author(s):  
Yashinta Yashinta ◽  
Dwi Hurriyati
Keyword(s):  
Internet Use ◽  
Hypothesis Test ◽  
Problematic Internet Use ◽  
Coefficient Of Determination ◽  
Test Results ◽  
Research Subjects ◽  
Significance Level ◽  
Relationship Of ◽  
The Relationship ◽  
Effective Contribution

This study aims to determine the relationship of loneliness with problematic internet use on boarding students on Silaberanti street in Siantan jaya Opposite Ulu 1 Palembang city. Research subjects numbered 220 people using random sampling methods. Data was collected using a 60 item problematic internet use scale and a 60 item loneliness. Realibility is generated on scale of problematic internet use of 0,955 and loneliness of 0,946.Hypothesis testing uses product moment correlation analysis techniques. Hypothesis test results showed a positive relationshif between loneliness with problematic internet use on boarding students on Silaberanti street in Siantan jaya Opposite Ulu 1 Palembang city r= 0,684 with a significance level of 0,000 (p<0,01). Loneliness in this study made an effective contribution of 46,8% to problematic internet use which can be seen from the coefficient of determination (r²) that is equel to 0,468.

The Performance of Sailing Yachts in Oblique Seas

1974 ◽  
Vol 11 (04) ◽  
pp. 383-392
Author(s):  
David R. Pedrick
Keyword(s):  
Wave Length ◽  
Added Resistance ◽  
Regular Waves ◽  
Sea State ◽  
Hull Form ◽  
Rough Water ◽  
Rational Procedure ◽  
The Difference ◽  
Relationship Of ◽  
The Relationship

The difference in the effects of rough water on similar sailing yachts has been one of the intriguing puzzles that sailors, designers, and researchers have long tried to understand. It is not uncommon for two yachts of equal performance in smooth-sea conditions to have their speed or pointing ability reduced by different amounts when encountering waves. To investigate the causes of such behavior, it is important to have a rational procedure to analyze how changes in hull form, weight distribution, rig, and other design features affect the speed and motions of sailing yachts. This paper discusses the relationship of wind to rough water and of motions and added resistance to wave length and height. It then describes a procedure to predict motions, sailing speed, and speed-made-good to windward in realistic windward sailing conditions. The procedure utilizes results of heeled and yawed model tests of 12-metre yachts in oblique regular waves to predict performance in a Pierson-Moskowitz sea state corresponding closely to the equilibrium true wind speed.

Organizational Support for Professionalism, Organizational Citizenship Behavior (OCB), and Performance

2021 ◽  
Vol 10 (1) ◽  
pp. 1-12
Author(s):  
Noviana Norrohmat ◽  
Umar Nimran ◽  
Kusdi Raharjo ◽  
Hamidah Nayati Utami ◽  
Endang Siti Astuti
Keyword(s):  
Organizational Citizenship ◽  
Organizational Citizenship Behavior ◽  
Organizational Support ◽  
Citizenship Behavior ◽  
Research Approach ◽  
The Difference ◽  
And Performance ◽  
Relationship Of ◽  
Descriptive Survey ◽  
The Relationship

The purpose of this research is to determine the organizational support for professionalism that has never been done before. The research approach is to conceptualize the structure of the relationship of variables from a study. Verification research is to test the hypothesis through data collection in the field using two methods, namely descriptive survey and explanatory survey. The use of both methods aims to analyze the causality relationship between research variables in accordance with the hypothesis quantitatively. There is significant influence between the variables of organizational support to professional variables. However, different results are found on the influence of organizational support variables on OCB and performance that have no significant effect. There is also an indirect influence between organizational support variables on OCB and performance through intermediary intervening professionalism variables. The difference between this research and the previous research are the use of constructs and the measurement in the unit of analysis being used.

scholarly journals Derivation and Performance of Standardized Enhanced Liver Fibrosis (ELF) Test Thresholds for the Detection and Prognosis of Liver Fibrosis

2019 ◽  
Vol 3 (5) ◽  
pp. 815-826 ◽  
Author(s):  
James Day ◽  
Preya Patel ◽  
Julie Parkes ◽  
William Rosenberg
Keyword(s):  
Liver Fibrosis ◽  
Delphi Panel ◽  
Test Results ◽  
Hazard Ratios ◽  
Test Thresholds ◽  
And Performance ◽  
Using Data ◽  
Relationship Of ◽  
The Relationship ◽  
Selection Of

Abstract Introduction Noninvasive tests are increasingly used to assess liver fibrosis and determine prognosis but suggested test thresholds vary. We describe the selection of standardized thresholds for the Enhanced Liver Fibrosis (ELF) test for the detection of liver fibrosis and for prognostication in chronic liver disease. Methods A Delphi method was used to identify thresholds for the ELF test to predict histological liver fibrosis stages, including cirrhosis, using data derived from 921 patients in the EUROGOLF cohort. These thresholds were then used to determine the prognostic performance of ELF in a subset of 457 patients followed for a mean of 5 years. Results The Delphi panel selected sensitivity of 85% for the detection of fibrosis and &gt;95% specificity for cirrhosis. The corresponding thresholds were 7.7, 9.8, and 11.3. Eighty-five percent of patients with mild or worse fibrosis had an ELF score ≥7.7. The sensitivity for cirrhosis of ELF ≥9.8 was 76%. ELF ≥11.3 was 97% specific for cirrhosis. ELF scores show a near-linear relationship with Ishak fibrosis stages. Relative to the &lt;7.7 group, the hazard ratios for a liver-related outcome at 5 years were 21.00 (95% CI, 2.68–164.65) and 71.04 (95% CI, 9.4–536.7) in the 9.8 to &lt;11.3 and ≥11.3 subgroups, respectively. Conclusion The selection of standard thresholds for detection and prognosis of liver fibrosis is described and their performance reported. These thresholds should prove useful in both interpreting and explaining test results and when considering the relationship of ELF score to Ishak stage in the context of monitoring.

scholarly journals HUBUNGAN ACCESS BLOCK DENGAN PERBURUKAN KONDISI PASIEN DI INSTALASI GAWAT DARURAT RSUD ULIN BANJARMASIN

2020 ◽  
Vol 11 (1) ◽  
pp. 110-119
Author(s):  
Julianto Julianto ◽  
Izma Daud ◽  
Sari Milyati
Keyword(s):  
Research Method ◽  
Sampling Technique ◽  
P Value ◽  
Test Results ◽  
Hospital Emergency ◽  
Cross Sectional ◽  
Analytical Design ◽  
A Value ◽  
Relationship Of ◽  
The Relationship

Abstrak  Latar Belakang :Access block adalah situasi dimana pasien yang mengalami lama rawat di IGD 6 karena kurangnya akses ke ruang rawat inap dan kepadatan jumlah pasien yang tidak terkendali, dampaknya ditemukan bahwa semakin lama access block  semakin tinggi pula perburukan pasien dalam 24 jam.Tujuan : ini bertujuan untuk mengetahui hubungan access block dengan perburukan kondisi pasien di Instalasi Gawat Darurat RSUD Ulin Banjarmasin.Metode :Penelitian menggunakan desain analitik dengan pendekatan cross sectional. Jumlah sampel yang diambil berjumlah 40 orang dengan teknik pengambilan accidental sampling. Analisis data melalui uji spearman rank.Hasil : Hasil uji dipapatkan nilai p hitung 0,000 (0,05) ada hubungan antara access block dengan perburukan kondisi pasien di instalasi gawat darurat RSUD Ulin Banjarmasi.Simpulan: Berdasarka hasil penelitian Ada hubungan antara access block dengan perburukan kondisi pasien di Instalasi Gawat Darurat RSUD Ulin Banjarmasin dengan nilai P= 0,000 nilai α = 0,05 dengan nilai koefisien korelasi 0,588 Kata kunci: Access Block, Perburukan Pasien. Abstract Background :Access block is a situation where patients who experience length of stay in the ED 6 due to lack of access to the inpatient room and uncontrolled density of patients, it is found that the longer the access block the higher the deterioration of patients in 24 hours.Purpose: This study aims to determine the relationship of access block with deteriorating condition of patients in Emergency Installation Ulin Hospital Banjarmasin.Method : The research method uses an analytical design with a cross sectional approach. The number of samples taken is 40 people using the accidental sampling technique. Data analysis through spearman rank test.Result: The test results obtained p value calculated 0,000 (0.05) there is a relationship between the access block and deterioration of the patient's condition at the Ulin Banjarmasin Hospital emergency department.Conclusion: Based on the results of the study, there is a relationship between the access block and the worsening of the patient's condition at the Emergency Department of RSUD Ulin Banjarmasin with a value of P = 0.000 value α = 0.05 with a correlation coefficient value of 0.588. Keywords: Access Block, Patient worsening 

scholarly journals L'ereignis, Le Mot-Directeur De La Pensée De Heidegger

2017 ◽  
Vol 13 (23) ◽  
pp. 234
Author(s):  
Pascal Dieudonné Roy-Ema
Keyword(s):  
Martin Heidegger ◽  
German Language ◽  
New Concepts ◽  
New Meanings ◽  
The Difference ◽  
Time And Being ◽  
Relationship Of ◽  
The Relationship

For over sixty years (from 1910 to 1973), Martin Heidegger carried out a work of thought which led him to create a large quantity of neologisms. It also led him to create a new use of idioms in the German language. This was regarded as a renewed vocabulary. His study bears new meanings and expresses the philosopher's work of thought and the new concepts he proposes. Among them is the Ereignis that this text proposes to question the content. The Ereignis is what makes time and being belongs to each other. It is the relationship of all the relations engendered by this co-membership. This is made possible by the difference installed at the heart of the same. Heidegger himself admitted that the Ereignis was the keyword of his whole thought since the early 1930s. It is the word-director of his thought.

scholarly journals Assessment Mixing and Compaction Temperatures for Modified HMA Using Superpave High Shear Viscosity Methods

2018 ◽  
Vol 21 (4) ◽  
pp. 516-522 ◽  
Author(s):  
Alaa Hussein Abed ◽  
Ali Hwaidi Nasser
Keyword(s):  
Shear Viscosity ◽  
Asphalt Mixture ◽  
High Shear ◽  
Compaction Temperature ◽  
Modified Asphalt ◽  
Performance Grade ◽  
Modified Binders ◽  
Different Temperatures ◽  
Marshall Stability

The objective of this study is determining the mixing and compaction temperature of the modified asphalt mixture. Results of binder tests showed that the addition of 3% SBS  to control asphalt (PG 64-16) would achieve the desired performance level (PG 76-16) a performance grade that fits our climate with traffic loads. When using 5% SBS the performance grade of binder increased three grades (PG 82-16) and when increasing SBS content to 8% the performance grade increased four grades (PG 88-16). At shear rate of 500 (s-1), the modified asphalt viscosity can be obtained at different temperatures and the viscosity temperature curve can be achieved. As a result, the mixing and compaction temperature of modified asphalt can be determined to reach 0.17 ± 0.02 Pa.s and 0.28 ± 0.03 Pa.s for mixing and compaction, respectively. It is noted that SBS modified reached a viscosity of 3 Pa.s when 8 % additive. Additive contents above these values may not be suitable for good workability and pump ability according to Superpave specifications. While addition of 5% SBS with control asphalt, more than 3.7times at 135°C Increase the viscosity. Marshall Stability test indicated that the strength for the SBS specimens increases as compared to the conventional specimens. An increase of about 39%, 74%, 102%, was observed with 3%SBS 5%SBS 8%SBS modified binders, respectively. The Marshall test results for 8%SBS binders required compaction temperatures above 175°C need to keep up quality of HMA item while limiting natural effect amid development, these proposals are unsatisfactory Modified mixtures the 5% SBS modification was determined to be the maximum useful content. The Superpave method to estimate mixing and compaction temperatures show are not practical for use with modified binders. Also,  it is observed that good agreement values between the average Marshall compaction temperature and the High Shear Viscosity Method (HSRV) and   lower than Superpave methods Where the decline ranges from 15 ºC to 17 ºC.

scholarly journals LEGAL AXIOMS: APPROACHES TO UNDERSTANDING

2020 ◽  
Vol 1 (9) ◽  
pp. 8-12
Author(s):  
Inna Zelenko ◽  
Keyword(s):  
Legal Regulation ◽  
Complex Phenomenon ◽  
Legal Principles ◽  
Common Features ◽  
The Third ◽  
Legal Science ◽  
The Difference ◽  
Definition Of ◽  
Relationship Of ◽  
The Relationship

The article reflects the diversity of views on the concept of "legal axiom". It is clarified that there are lawyers who deny the existence of the concept of "axiom" in law. It is presented that some scholars identify legal axioms with legal customs in terms of content, formulation and existence, as well as methods of provision. It is revealed that legal axioms have common features and differences with legal presumptions. It is emphasized that the legal presumption and legal axiom are understood as true without evidence. It is considered that the difference between a legal presumption and a legal axiom lies in the difference of circumstances: they allow to consider them plausible; possibilities (impossibilities) of refutation; significance, content and form It is demonstrated that there are several approaches to the relationship of legal axioms with the principles of law. It has been found that the first group of scholars identify the principles of law and axioms. Attention is drawn to the fact that the second group of scholars notes that axioms are prerequisites for the principles of law. It is presented that the representatives of the third group distinguish between the concepts of principles of law and legal axioms. It has been shown that the complex interrelationships of principles and axioms are reflected in their dialectical unity, their ability to pass from one to another, and the disclosure of one phenomenon through another. It is noted that axioms are subject to change, so axioms and presumptions are closely interrelated and under certain conditions can replace each other. The definition of legal axioms has been further considered. Legal axioms are a multifaceted complex phenomenon of legal reality related to law, legal awareness and legal science. regularities, properties of special legal principles of law and serve to simplify legal regulation.

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