An Analysis Of Freestyle Swimming Technique on Students the Physical Education, Health And Leisure Study Program

The purpose of the study. The purpose of this study is to describe the technique of freestyle swimming in terms of: body position, hand movements, foot movements, breath taking movements and movement coordination. Materials and methods. Determine the level of mastery of the freestyle swimming technique in the students of the Physical Education Study Program at the Universitas Pahlawan who attend basic swimming lectures. Is it classified as very good, good, less or less. This research is descriptive, the population of this research is 20 students. Results. the level of mastery of technique on the body position indicator is 66% and the error rate is 34%, then the hand rotation indicator is 66 % and the error rate is 34%, then the foot movement indicator (Kicking) is 70% and the error rate is 30%. Furthermore, the level of mastery of techniques in breathing (breating) is 68.5% and the error rate is 30%, then the level of mastery of techniques in coordination is 68.5% and the error rate is 31.5%. Conclusions. Concluded that the level of mastery of technique on each indicator of the freestyle swimming technique

High Energy Piping Walkdowns in Compliance With ASME B31.1

This paper discusses high energy piping (HEP) system walkdown requirements and guidelines in compliance with the American Society of Mechanical Engineers (ASME) B31.1 Code. Chapter VII states that the Operating Company shall develop and implement a program requiring documentation of piping support readings and recorded piping system displacements. Guidelines for this program are provided in Nonmandatory Appendix V, para. V-7. The Code also requires that the Operating Company shall evaluate the effects of unexpected piping position changes, significant vibrations, and malfunctioning supports on the piping system’s integrity and safety. These requirements and guidelines have been developed for personnel safety and piping system reliability. The HEP system should be maintained to behave as expected in the original design analysis unless a field change is justified by qualified personnel. The walkdown program should be an integral part of an asset integrity management program, including observations, documentation, evaluations, corrective actions, and countermeasures. A thorough HEP system walkdown includes more than documented hanger readings. It should include visual assessments of possible sagging pipe, unusual pipe slopes, building structure damage, lagging/insulation damage, locked spring hangers, piping interferences, damaged spring coils, loose/missing support fasteners, unloaded rigid supports, bent struts, insufficient hydraulic fluid in snubbers, detached Teflon strips on sliding supports, and confirmation that the current supports are consistent with the original design specifications. If accessible, it should be confirmed that there are no gaps in the sliding supports. This paper illustrates that it is now possible to photographically document spring support position indicator readings from distances up to 30 feet (9.1 meters). Photographic documentation provides higher confidence in the position indicator readings and can resolve many visual documentation discrepancies, such as incorrect support readings, readings from opposite position indicator sides, and parallax issues. If accessible, closer inspections may confirm if a spring support is in fact internally bottomed-out or topped-out. Nonmandatory Appendix V provides recommended hot walkdown and cold walkdown forms. These forms provide additional space for applicable notes. Example photographs of many piping system anomalies and associated documentation are provided in this paper. ASME B31.1 requires that significant displacement variations from the expected design displacements shall be considered to assess the piping system’s integrity.

PERBANDINGAN TEKNIK WARM DAN COLD START PADA MODEL WRF-3DVAR ASIMILASI DATA RADAR PADA PREDIKSI HUJAN LEBAT DI WILAYAH SURABAYA DAN SEKITARNYA

Penelitian ini bertujuan untuk mengetahui perbedaan hasil prediksi hujan WRF-3DVAR asimilasi data radar dengan menggunakan teknik warm start (spin-up 12 jam) dan cold start (tanpa spin-up). Kejadian hujan yang dianalisis adalah kejadian hujan lebat tanggal 19-20 Januari 2019 di wilayah Surabaya dan sekitarnya. Data yang digunakan untuk simulasi adalah data Global Forescast System (GFS) dan data reflektivitas radar cuaca BMKG Surabaya produk Constant Altitude Plan Position Indicator (CAPPI). Analisis dilakukan dengan membandingan kondisi awal model pada parameter suhu dan kelembaban udara untuk mengetahui efek dari metode asimilasi data. Uji keandalan model dilakukan dengan melakukan verifikasi dikotomi (hujan/tidak hujan) hasil luaran model WRF dengan data hujan di 4 titik pengamatan, yaitu di Stasiun meteorologi Juanda, Stasiun meteorologi Perak, Stasiun Klimatologi Karangploso, dan Stasiun Geofisika Tretes. Hasil menunjukkan bahwa asimilasi data radar dengan mode cold start mempunyai hasil yang lebih baik dibandingkan dengan warm start, yang ditandai dengan lebih tingginya nilai Probability of Detection (POD) dan lebih rendahnya False Alarm Ratio (FAR). Asimilasi data dengan menggunakan mode cold start memiliki performa yang lebih baik dalam mendeteksi curah hujan per jam dengan ambang batas >1 mm dan >5 mm, sedangkan curah hujan >10 mm per jam lebih baik diprediksi menggunakan mode warm start.

Dynamic Differential Reflectivity Calibration Using Vertical Profiles in Rain and Snow

The accuracy required for a correct interpretation of differential reflectivity (ZDR) is typically estimated to be between 0.1 and 0.2 dB. This is achieved through calibration, defined as the identification of the constant or time-varying offset to be subtracted from the measurements in order to isolate the meteorological signals. We propose two innovative steps: the automated selection of sufficiently homogeneous sections of Plan Position Indicator (PPI) scans at 90∘ elevation, performed in both rain and snow, and the ordinary kriging interpolation of the median ZDR value of the chosen radar volumes. This technique has been successfully applied to five field campaigns in various climatic regions. The availability of overlapping scans from two nearby radars allowed us to evaluate the calibration approach, and demonstrated the benefits of defining a time-varying offset. Even though the method has been designed to work with both solid and liquid precipitation, it particularly benefits radar systems with limited access to rain measurements due to the deployment in mountainous or polar regions or to issues affecting the lowest range gates.

Analysis of Employee Satisfaction Towards Salary, Position, Position Promotion, and Supervision

Job satisfaction is a general attitude towards one's job, as the difference between the amount of reward received by workers and the amount of reward that is believed to be received. This research aims to analyze employee job satisfaction with salary, position, promotion, and supervision. This research is a quantitative study using a survey method. The population in this study were 70 people. The sample was obtained using a saturated sample technique. The data in this study were collected using a questionnaire and documentation. Data were analyzed using the principles of editing, tabulating, analyzing, interpreting, and concluding. The results showed that the salary indicator showed the respondents' assessment interpretation 49% agreed and 40% was sufficient; The position indicator shows the respondent's interpretation of 56% agree and 30% is sufficient; the job promotion indicator shows the interpretation of the respondents' assessment. 36% stated that the category was sufficient and 26% said the category did not agree; the supervision indicator shows the respondent's assessment interpretation. 57% agreed and 41% sufficient. So it can be concluded that overall employees show satisfaction at work.

A Study on the Improvement of the Management Method Indicators Lamp for Fire Alarm System

The number of casualties in fire-related accidents has increased recently as fires have increased. Among facilities that reduce casualties in case of fire, the alarm is a fire-fighting facility that allows occupants to quickly evacuate to a safe space through alerts in case of danger. Location indicator lamps indicating the location of the transmitter in alarm systems play a very important role in the event of a fire. In the event of a fire, an alarm is issued through the transmitter, and fire transmitters ensure prompt action. However, performance control of the location indicator is not performed during inspection of the legal firefighting facility; only the lighting condition is checked. It is essential to maintain the performance of the location indicator of the transmitter, which can induce rapid evacuation and reduce casualties. This study investigated the performance state and management method of a position indicator lamp that can easily recognize the location of the transmitter. In the case of aging position indicators, it was found that the luminance was low and that identification could not be secured.

DETEKSI ES DAN HAIL DI ATMOSFER DENGAN RADAR POLARIMETRIK X-BAND FURUNO WR-2100 (STUDI KASUS: 24 JANUARI DAN 14 FEBRUARI 2016)

Informasi keberadaan es di atmosfer sangat penting, tidak hanya untuk studi meteorologi, namun juga untuk kegiatan modifikasi cuaca maupun pengembangan sistem peringatan dini bencana hidrometeorologi. Pada makalah ini, kami mendemonstrasikan tiga teknik deteksi es dengan memanfaatkan observasi radar X-band polarimetrik Furuno WR-2100. Data Constant Altitude Plan Position Indicator (CAPPI) untuk parameter horizontal reflectivity (Zh), differential reflectivity (ZDR) dan specific differential phase (KDP) pada kejadian presipitasi konvektif di wilayah Banten dan Bogor tanggal 24 Januari dan 14 Februari 2016 dianalisis dengan menggunakan metode Hail Differential Reflectivity (HDR), metode konsistensi KDP (CM) dan metode fuzzy logic (FL). Produk data yang dihasilkan oleh ketiga metode tersebut saling dibandingkan secara horizontal pada ketinggian 500 meter, 2 kilometer dan 5 kilometer, serta secara vertikal hingga ketinggian 15 kilometer. Hasil analisis menunjukkan metode HDR paling sensitif dan konsisten untuk identifikasi es pada setiap level ketinggian, sedangkan metode FL dapat membedakan jenis es secara spesifik. Di sisi lain, rendahnya sensitivitas metode CM dalam penelitian ini menunjukkan tidak adanya konsentrasi es yang signifikan pada waktu observasi dan mengindikasikan metode tersebut lebih sensitif untuk deteksi jenis es dengan ukuran yang lebih besar.