Journal Universitas Tridinanti Palembang
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PENGARUH PEMAKAIAN AIR RAWA TERHADAP KUAT TEKAN DAN KUAT TARIK BELAH BETON
Get PDFAbstrak: Salah satu bahan pembuat beton adalah air, karena air diperlukan untuk bereaksi dengan semen dan juga sebagai bahan pelumas antara butir agregat sehingga mudah dikerjakan serta dipadatkan. Untuk bereaksi dengan semen air yang diperlukan sekitar dua lima persen dari berat semen, tapi dalam pelaksanaannya itu sangan sulit dilakukan berkaitan dengan kelecakannya. Kelebihan air ini dipakai sebagai pelumas tetapi kelebihan air ini tidak boleh terlalu banyak karena akan menyebabkan kekuatan beton akan rendah dan porous. Air yang memenuhi syarat untuk dipakai untuk bahan campuran pembuat beton adalah yang menghasilkan beton dengan kekuatan lebih dari 90% kekuatan beton yang memakai air suling. Benda uji untuk pengujian kuat tekan digunakan kubus 15 x 15 x 15 cm dan kuat tarik belah digunakan silinder diameter 15 cm dan tinggi 30 cm. Air sebagai campuran pembuatan beton adalah air PAM Tirta Musi Palembang dan air rawan dari Banyuasin. Dari hasil penelitian yang telah dilakukan didapat hasil uji kuat tekan mengalami penurunan sebesar 78,547 kg/cm2 untuk beton menggunakan air rawa dibandingkan beton menggunakan air PAM. Untuk hasil pengujian kuat tarik belah beton juga mengalami penurunan 25,474 kg/cm2 untuk beton menggunakan air rawa dibandingkan dengan beton menggunakan air PAM.Kata kunci: air PAM, air rawa, kuat tekan beton dan tarik belah beto
PENGARUH VARIASI TEMPERATUR NORMALIZING TERHADAP BESAR BUTIR DAN KEKERASAN MATERIAL BAJA KARBON AISI 1035
Get PDFMechanical properties of steel do not only depend to its chemical composition but also its micro structure. This mechanical property can be modified with heat treatment processes, one of them is by using normalizing method. This process is able to manipulate both micro structure and particle size. In order to investigate the influence of Normalizing temperature, An AISI 1035 steel is treated by Normalizing with various temperatures from 820 to 880 ⁰C. Since each sample is treated by same method, the microstructure of each sample is also similar. In addition the difference variation of normalizing temperature among each sample causes the variation of grain size. The increasing of temperature Normalizing causes the increasing of its grain size. The influence of of grain size is investigated by doing Rockwell Hardness Test. Based on the result, steel which has bigger grain size has higher hardness property. Keywords: : Mechanical Characteristics, Micro Structure, Normalizing, Grain Siz
PENGARUH CASH RATIO DAN DEBT RATIO TERHADAP RETURN ON ASSETS PADA PERUSAHAAN PERTAMBANGAN MINYAK DAN GAS YANG TERDAFTAR DI BURSA EFEK INDONESIA PERIODE TAHUN 2015-2019
No full textABSTRACKThis study aims to determine how much effect of cash ratio and debt ratio as independent variables simultaneously and partially on return on assets as dependent variable using data consisting of 6 companies listed on IDX. The population of this study is a public company listed in IDX with oil and gas mining companies as the sample. This research uses purposive sampling method. Analysis of the data used in this study is a classic assumption test and for hypothesis testing using multiple linear regression analysis.The result of this study indicate that simultaneously cash ratio dan debt ratio have a significant effect on return on assets with a value of Fcount 3,361 while Ftable is 3,35 or in other words Fcount > Ftable with a significant value of 0,005 < 0,05 from the output value of SPSS. Partially there is no effect of cash ratio (X1) on return on assets. With a regression coefficient value -0,036 and tcount -2,242 < ttable 1,073 with a significant value of 0,078 > 0,05. While debt ratio (X2) has a significant effect on return on assets. With a regression coefficient value 0,072 and tcount 1,835 > ttable 1,073 with a significant value 0,033 < 0,05 Keywords : Cash ratio, Debt ratio dan Return on Asset
PENGARUH UPAH DAN INSENTIF TERHADAP PRODUKTIVITAS KERJA KARYAWAN PADA PT. TIRTA BUMI RAYA PALEMBANG
No full textThis research is a study of "The Effect of Wages and Incentives on Employee Productivity at PT. Tirta Bumi Raya Palembang ". The dependent variable in this study is Work Productivity and the independent variables are Wages and Incentives. The data used in this study are primary data obtained from data processing and questionnaires. The population in this study amounted to 50 employees, the method of determining the sample using the census method that is all the population into the study sample. Data collection techniques using questionnaires that have been tested first are tested using validity test and reliability test. Data analysis techniques used are multiple linear regression analysis, coefficient of determination, t test and F test. The results of this study, prove that partially and simultaneously wages partially have a significant effect on work productivity. Then partial incentives do not significantly influence work productivity. While simultaneously wages and incentives simultaneously have a significant effect on employee work productivity. Keywords: Wages, Incentives and Work Productivit
THE STUDENTS’ FREE WRITING TOWARD ICT AS MEDIA IN ENGLISH LEARNING ON MIDWIFERY STUDENTS OF STIKES PEMBINA
Get PDFThe objective of this research was to find out the description of The students’ free writing toward ICT as media in English learning on midwifery students of STIKES Pembina. The sample of this research was taken by using totaling sampling technique with 36 midwifery students from STIKES Pembina, that consist of 13 students from 2nd semester students and 23 students from 4th semester. The data was obtained based on every meeting during online learning, that was from the third meeting to the seventh meeting that consists of 5 days for obtaining the data. Then from the data analysis, it’s obtained that there was the good improvement response by writing English related to the material since the frist day to the fifith day that was 63% of students response to the 95% students response in the last day. During the implementation of online learning by using ICT (whatssapp group and edlink) the obstacle raised on students. Many factor that made the students can’t join the class and response. One of the factor was the access on internet in their hometown. Even had the obstacle the use of ICT can be good choice in conducting the teaching and learning EFL proces of midwifery students of STIKES Pembina PalembangKeywords: free writing and ICT
EVALUASI KINERJA PELAYANAN ANGKUTAN KOTA TRAYEK AMPERA – KM 5 KOTA PALEMBANG
Get PDFAbstrak: Kebutuhan akan sarana transportasi di perkotaan terus mengalami peningkatan akibat banyaknya kegiatan yang membutuhkan jasa transportasi. Salah satu sarana transportasi adalah angkutan kota. Seiring dengan meningkatnya mobilitas perduduk dan bertambahnya persaingan antara moda trasportasi, maka angkutan kota dituntut untuk memenuhi syarat kelancaran, kenyamanan dan keamanan. Tujuan penelitian ini adalah Mengukur efektivitas dan efisiensi angkutan kota pada trayek Ampera – Km.5. Data yang dikumpulkan berupa data primer dan sekunder dengan analisis menggunakan Morlock (1988).Hasil penelitian ini menunjukkan bahwa kinerja angkutan kota efektif dari aksesibilitas dan frekuensi headway dan Ketidakefektifan terdapat pada kecepatan rata- rata. Sedangkan efisiensi angkutan kota yang ditinjau dari tingkat operasional tergolong efisien dan untuk faktor muat penumpang tidak efisien karena kurang dari 70 % dari standar pelayanan angkutan umum.Kata kunci: kinerja pelayanan, angkutan kot
STUDI PERBANDINGAN KINERJA FREEZER 1/5PK DENGAN R134a DAN MUSICOOL (MC-134)
Get PDFThe purpose of this research is to design a freezer system that is used to study the comparison of the performance of a 1/5 PK freezer with the working fluid R-134a and Musicool MC-134. In this research, the main components used are 1/5 PK hermetic compressor, plate surface evaporator, water cooled condenser, and capillary pipes. The research was carried out by replacing R-134a refrigerant with Musicool MC-134 without changing the supporting components of the system (retrofit). The results showed that the retrofit from R-134a to Musicool MC-134 was very capable and feasible to be implemented. The system will be safe if the components of the system used are in accordance with the prerequisites (from the old working fluid, R-134a), the opposite will cause insecurity due to susceptibility to leakage (since the substitution of working fluid, MC-134, is more flammable). In addition, the use of MC-134 will result in a temperature drop that is much faster than R-134a, in other words "cooler faster" which is 30% faster (for a set point temperature of -18oC). Keywords: Retrofit, Musicool, R-134a, MC-134, Freeze
IMPROVING THE TENTH GRADERS’ READING COMPREHENSION USING ETR METHOD
Get PDFReading comprehension is the act of understanding of a text. It means that reader can understand the meaning, main idea, topic and summary of the text. Experience –Text – Relationship (ETR) is a strategy that draws on backgroud knowledge, prior knowledge and experience. The objective of this research were to find out whether or not there was any significant improvement in reading comprehension of narrative text by using ETR method, and to find out whether or not there was any significant difference in students’ reading comprehension of narrative text between thoso who were taught by using ETR method and those who were not. This research involved 70 students as the sample, chosen by using purposive sampling technique. There were two groups involved, experimental and control group. Each group consisted of 35 students. A reading test was used to obtain the data for pretest and post-test. The obtained data were analyzed by using Paired Sample T-test and Independent-Sample T-test. Based on Paired Sample T-test, it was found that there was significant improvement on experimental students’ reading comprehension. Furthermore, based on the Independent Sample T-test, it was found that there was significant difference on reading comprehension between the students who were taught by using ETR method and those who were not.Keywords: reading comprehension, tenth graders, ETR metho
PENGARUH KARAKTERISTIK KELOMPOK DAN KARAKTERISTIK PEKERJAAN TERHADAP KINERJA KARYAWAN CV. CROSSLINE PRODUCTION PALEMBANG
Get PDFThis research is basically discuss the influence of group characteristic and work characteristic on employee performance at CV. Crossline Production Palembang by using quantitative data analysis which are correlation coefficient analysis, coefficient of determination, hypotheses testing of statistic t-tests, and statistic F-tests. The sample of this research is all the employees of CV. Crossline Production Palembang, that are 30 people.Regression coefficient value for competency variable (X1) is 0,001 and work culture variable (X2) is 0,000 with level of significance 5%, these produce constant value at 1,190. So, the regression equation used in this research isY = 1,190 + 0,255x1 + 0,726x2 + e.The test result in this research indicate that group characteristic and work characteristic have positive effect on employee performance simultaneously. Those independent variables have effect too on employee performance partially. The amount of coefficient of determination (Adjusted R Square) at 0,831 show that independent variables (group characteristic and work characteristic) have effect on dependent variable (employee performance) at 83,1%, while the rest is effected by other variables that are not use in this research. Keywords:Characteristic,Employee, Performanc
PENGARUH LEVERAGE DAN PROFITABILITAS TERHADAPKEBIJAKAN DIVIDEN PADA PERUSAHAAN SEKTOR MANUFAKTUR YANG TERDAFTAR DI BURSA EFEK INDONESIA (BEI)
Get PDFThe purpose of this study was to determine the effect of leverage and profitability both simultaneously and partially on dividend policy on manufacturing companies listed on the Indonesia Stock Exchange in the period 2014 - 2018.The data in this study were collected by documentation technique. The documentation technique is used to obtain data related to this research. The analysis technique used in this study is quantitative analysis using multiple linear regression. To test the data, the classical assumption test consists of multicollinearity test, heteroscedasticity test and autocorrelation test, whereas to test the hypothesis, the F test (simultaneous) and t test (partial test), and correlation coefficient (r) analysis, and coefficient of determination (r2).The results of this study indicate the value of fcount has a value lower than ftabel (4.644> 3.25) or significant F 0.016 <α 0.05, it can be concluded that Ha1 can be accepted simultaneously related to profitability and profitability towards dividends on manufacturing companies paid on the Exchange Indonesian effect. While partial shows that the leverage variable has a t-value of -1.335, which means tcount<ttable (-1.335 <2.026) and a significant leverage of 0.184> α 0.05 means that H02 is accepted and Ha2 is rejected, this leverage has no effect Partial dividend policy for manufacturing companies listed on the Indonesia Stock Exchange. The profitability variable has a tcount of 3.022 which means tcount>ttable (3.022> 2.026) and a significant profitability of 0.005 <α 0.05 means that Ha3 is accepted and H03 is rejected, this is related to the increase in profitability of the Indonesia Stock Exchange Keywords:Leverage, Profitability, Dividend Polic