Wibisono Wibisono
Center for Isotopes and Radiation Application, National Nuclear Energy Agency, Jl. Lebak Bulus Raya No. 49, Jakarta 12440, Indonesia.

Published : 7 Documents

Found 7 Documents

Jurnal Forum Nuklir JFN VOL 13 NO 1 MEI 2019
Publisher : BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (866.748 KB)


GAMMA SCANNING TECHNIQUE FOR INVESTIGATING DE-ETHANIZER COLUMN: ON FIELD EXPERIMENTAL AT NGL PLANT. De-ethanizer column is part of fractionators series at natural gas liquid (NGL) plant. During the production process, there are several common problems happen such as displaced or damaged trays, dry or flooding trays, unequal liquid level on trays, weeping or dumping trays, foaming on trays, etc. Therefore, investigation of column’s internal condition without interupting production process is needed to maintain the production level. Gamma scanning technique has been chosen to investigate 01-C-3401 de-ethanizer column. The column has two segments, the lower (ID: 1900 mm) and the upper (ID: 3200 mm) segments. Total column height (TL to TL) is 36710 mm. The scanning was conducted by positioning collimated gamma source (Co-60, 2.59 GBq) and detector (NaI(Tl)) flanking the column. The collimators move up in parallel by 50 mm and detector counted radiation that penetrated column for 3 seconds every scanning step. The scanning process were performed automatically using winch with AC motor, microcontroller module, computer with LabVIEW as graphical user interface (GUI). The results show mechanical structures of tray #1 - #38 were in good condition. There were no collapsed or flooded trays in the column.  The demister was in its position. Chimneys above tray #38 and tray #8 were observed exist. The liquid level during the scanning process were in normal liquid level (NLL) approaching to high liquid level (HLL). Gamma scanning technique has been succesfull to provide the internal structure condition information of the column.
Effect of Filter on Image Reconstruction using Filtered Back Projection Algorithm for Industrial Gamma-Ray Tomography Technique Azmi, Bayu; Wibisono, Wibisono; Darman, Darman; Sugiharto, Sugiharto
Jurnal Ilmiah Aplikasi Isotop dan Radiasi Vol 15, No 1 (2019): JUNI 2019
Publisher : BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (721.548 KB) | DOI: 10.17146/jair.2019.15.1.4236


Gamma-ray tomography experiment has been carried out to detect the cross-sectional spatial patterns of test objects. The resulting image quality depends on the data collection and image reconstruction process. The images were built using filtered back projection algorithm. The filter in the algorithm affects the resulting image. It is necessary to know the proper filter when reconstructing image using the algorithm. Data were collected by scanning the object using the parallel beam method. Scanning configuration was set up to every 5 mm and 32 projections (rotational scans). The scanning system consists of mechanical parts, computerized control module, a gamma-ray source (2.96 GBq of Cs-137), a NaI(Tl) scintillation detector, data acquisition and computer. In this paper, the data were reconstructed into images using back projection and also filtered back projection algorithm to study effect of the filters. The filters discussed are Ramp filter, Shepp-Logan filter, Hann filter, Hamming filter, and Cosine filter. The reconstructed images results with filter were much better than without filter. The images with no filter did not represent the object cross-sectional spatial patterns and looked blurred. There were only solid objects represented by bright white and air represented by dark colors. The images using filter could distinguish object based on its density. Ramp filtered images looked like it was filled with freckles. Shepp-Logan filter produced smoother images than Ramp filter. Hann, Hamming, and Cosine filtered images were smoother than the others. Hann and Hamming filters produced higher resolution images regarding to recognizing density value. Hann filtered images also has the smallest standard deviation. Overall, Hann filter is recommended to be used to reconstruct images from projections.
Biomedika Vol 10, No 1 (2018): Biomedika Februari 2018
Publisher : Universitas Muhamadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/biomedika.v10i1.5850


Benign prostatic hyperplasia (BPH) merupakan salah satu tumor jinak yang sering ditemukan pada pria usia lebih dari 50 tahun yang dapat menyebabkan lower urinary tract symptoms (LUTS). LUTS merupakan kumpulan gejala dari bladder outlet obstruction (BOO). Konfigurasi anatomi prostat berupa intravesical prostatic protrusion (IPP) telah terbukti memiliki korelasi yang baik untuk menyebabkan BOO. Peningkatan signifikan volume post-void residual urine (PVR) adalah manifestasi klinis yang sering terdapat pada pasien dengan BPH. Saat ini di RSDM, LUTS masih menjadi standar dalam menentukan tata laksana BPH. Berdasarkan uraian di atas peneliti tertarik untuk melakukan penelitian hubungan IPP dan PVR dengan LUTS pada pasien klinis BPH tanpa retensi. Penelitian ini merupakan studi observasional analitik dengan desain cross sectional. Sampel penelitian adalah pasien klinis BPH tanpa retensi yang datang ke poliklinik selama periode penelitian, kemudian dilakukan pemeriksaan transabdominal ultrasonography (TAUS) untuk mengukur IPP dan volume PVR serta menilai skor IPSS untuk menilai derajat LUTS. Analisis data hubungan antara IPP dan PVR terhadap LUTS dilakukan dengan uji statistik parametrik regresi linier menggunakan software (α < 0,05). Penelitian dilakukan pada 13 pasien klinis BPH tanpa retensi, pada analisis bivariat dari hasil uji statistik antara IPP dengan LUTS didapatkan nilai r= 0,911 dan nilai p=0,000 (p<0,05), sedangkan PVR dengan LUTS didapatkan nilai r= 0,922 dan nilai p=0,000 (p<0,05), yang berarti bahwa terdapat hubungan yang positif dan signifikan antara IPP dengan LUTS serta PVR dengan LUTS. Pada analisis multivariat, nilai koefisien regresi IPP, p=0,017 (p<0,05), sedangkan nilai koefisien regresi PVR, p=0,953 (p>0,05), Sehingga IPP lebih baik untuk memprediksi beratnya LUTS dibandingkan dengan PVR. Berdasarkan hasil penelitian dapat disimpulkan bahwa, terdapat hubungan IPP dan PVR dengan LUTS pada pasien klinis BPH tanpa retensi.Kata Kunci: benign prostatic hyperplasia, intravesical
Publisher : Sekolah Tinggi Manajemen Transportasi (STMT) Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25292/j.mtl.v3i2.144


The utilization of Indonesia’s fisheries potential should be supported by the development of fisheries industry, more specifically by the improvement on fisheries supply chain management. It is needed to preserve the quality and safety of fisheries product from sea to consumers’ table and the sustainable fisheries supply. The fisheries product is perishable therefore the appropriate handling and full controlled process are needed to maintain product quality and safety. In fisheries industry, quality and safety can be maintained by applying good logistic practices (GLoP). GLoP is best practices ofcold chain management supported by quality and safety control system such as good manufacturing practices (GMP), standard sanitation operating procedure (SSOP) and hazard analysis critical control point (HACCP). On the other hand, the sustainability of fisheries supply canbe achieved by applying full controlled resources management. The commitment and cooperation of all parties on fisheries industry, as well as the standard implementation of fishery management is needed to improve quality and quantity of Indonesia’s fisheries products.
CHANGES IN ERECTILE FUNCTION BEFORE AND AFTER PROSTATE BIOPSY wibisono, Wibisono; Soebadi, Doddy Musbadianto; Alif, Sabilal; Pudjirahardjo, Widodo
Indonesian Journal of Urology Vol 20 No 2 (2013)
Publisher : Indonesian Urological Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32421/juri.v20i2.9


Objective: To evaluate erectile function before and after transrectal ultrasound (TRUS) guided prostate biopsy using International Index of Erectile Function-5 (IIEF-5) and Erection Hardness Score (EHS) instrument. Material &amp; Method: We conducted a study on 17 BPH LUTS patients who underwent TRUS guided prostate biopsy from January to April 2011 in Urological Minimal Invasive Installation (IIU) Dr. Soetomo Hospital. Out of 17 patients, three patients had mild ED, while 14 other patients had normal erectile function before the procedure. After TRUS guided prostate biopsy, we performed erectile function assessment using the IIEF-5 and EHS at weeks I, II, and IV. Results: Pathological examination of all specimens from prostate biopsy results revealed BPH. There were 2 patients with hematuria and 1 patient with rectal bleeding shortly after the biopsy, which resolved spontaneously less than 24 hours. Based on the IIEF-5 there were 4 patients (23,5%) with decreased erectile function in the evaluation of first week after prostate biopsy, and it reduced to 2 patients (11,7%) whose erectile function was still decreasing in the evaluation week II, while in fourth week evaluation there was 1 patient (5,9%) with decreased erectile function. Based on EHS data obtained, there were 5 patients (29,4%) with decreased scores in evaluations week II, and in the evaluation of week IV there were no patients having erectile function problems compared with EHS data before prostate biopsy. Conclusion: TRUS guided prostate biopsy can have temporary effect on erectile function.Keywords: Erectile dysfunction, prostate biopsy, international index of erectile function-5, erection hardness score.
Journals of Ners Community Vol 9, No 1 (2018): Journals of Ners Community
Publisher : Fakultas Ilmu Kesehatan Universitas Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (627.319 KB)


Hipotensi adalah tekanan darah rendah kurang dari 90/60 mmHg. Kondisi ini mengurangi aliran darah dalam menerima nutrisi dan transportasi oksigen di organ vital. Berjalan adalah serangkaian langkah satu per satu lurus ke depan dan akan bergerak seiring dengan langkah-langkahnya. Berjalan digunakan dalam rasio 1: 1 yang berarti berjalan dengan santai ke jarak 107 m dalam satu menit dan jalan cepat dengan jarak 160 m dalam satu menit. Penelitian ini bertujuan untuk mengetahui pengaruh latihan (jalan kaki) terhadap peningkatan tekanan darah pada klien yang dirawat hipotensi di SMKN III Pamekasan.Penelitian ini menggunakan desain pra-eksperimen, dengan sampel dari 14 individu, penelitian ini menggunakan sampling acak sederhana. Variabel bebas adalah olahraga (berjalan) dan variabel dependen peningkatan tekanan darah dan variabel moderator gizi, tidur dan stres. Tekanan darah diukur dengan menggunakan sphygmomanometer merkuri sebelum dan sesudah berjalan dan dianalisis menggunakan uji Paired T dengan tingkat signifikansi α <0,05.Hasil penelitian menunjukkan bahwa ada perbedaan pre test dan post test. Nilai rata-rata tekanan darah sistolik pretest adalah 84,5 mmHg, sedangkan nilai rata-rata post test adalah 101,6 mmHg. Peningkatan itu terjadi rata-rata 17,14 mmHg. Uji statistik dengan Paired T Test, p value = 0,000 sedangkan nilai rata-rata pre test tekanan darah diastolik adalah 54,21 mmHg, sedangkan nilai rata-rata post test adalah 71,07 mmHg TDD. Peningkatan itu terjadi rata-rata 16,85 mmHg. Hasil pengujian dengan statistik uji diperoleh dengan paired t test p value = 0,000.Dari hasil tersebut, dapat disimpulkan bahwa olahraga (berjalan) meningkatkan tekanan darah pada klien hipotensi di SMKN III Pamekasan.Diharapkan bahwa perawat harus memotivasi klien untuk berolahraga (berjalan) pada jadwal teratur dan dosis latihan yang benar dan juga harus mendukung pemenuhan faktor gizi, kebutuhan tidur, dan penanganan stres. Kata kunci: Latihan (berjalan), tekanan darah tinggi Hypotension is low blood pressure less than 90/60 mmHg. This condition reduces the blood flow in the receiving nutrients and oxygen transport in vital organs. Walking is a series of steps one by one straight forward and will move along with the steps. Walking is used in the ratio 1: 1 which means to walk leisurely to the 107 m distance in a minute and fast road with 160 m distance in one minute. This study aims to determine the effect of exercise (walking) on blood pressure increase in clients treated hypotension in SMKN III Pamekasan.This study uses a pre-experimental design, with samples from 14 individuals, this study used simple random sampling. Independent variable is the sport (walking) and dependent variable increases in blood pressure and moderator variables nutrition, sleep and stress. Blood pressure was measured by using mercury sphygmomanometer before and after the walk and analyzed using the Paired T test with significance level α <0.05. The results showed that there were differences in pre test and post test. The average value pretest systolic blood pressure was 84.5 mmHg, while the average value of post test was 101.6 mmHg. The increase that occurred an average of 17.14 mmHg. Statistical tests with the Paired T Test, the p value = 0.000 while the average value of pre test diastolic blood pressure was 54.21 mmHg, while the average value of post test was 71.07 mmHg TDD. The increase that occurred an average of 16.85 mmHg. The test results with the test statistics obtained by paired t test p value = 0.000.From these results, it can be concluded that exercise (walking) to increase blood pressure in hypotension clients in SMKN III Pamekasan. It is expected that nurses should motivate the client to exercise (walking) on a regular schedule and dose of exercise that right and also should support the fulfillment of nutritional factors, sleep needs, and handling stress.Keywords: Exercise (walking), high blood pressureDOI: 10.5281/zenodo.1405379
Pengukuran Scaling pada Pipa menggunakan Tomografi Gamma Parallel Beam Azmi, Bayu; Wibisono, Wibisono; Saputro, Adhi Harmoko
Jurnal Ilmiah Aplikasi Isotop dan Radiasi Vol 13, No 1 (2017): Juni 2017
Publisher : BATAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/jair.2017.13.1.3914


Pembentukan scale pada pipa maupun unit proses lainnya dapat terjadi di dalam proses produksi. Scaling pada pipa dapat mengurangi diameter pipa sehingga mengurangi laju alir dan bahkan mengakibatkan pipa tersumbat. Pengukuran diperlukan untuk mengetahui keberadaan dan persentase scaling pada pipa. Tomografi merupakan teknik yang digunakan untuk menginvestigasi struktur dalam suatu obyek secara non-intrusive dan non-invasive. Dalam penelitian ini sistem tomografi digunakan untuk pemindaian translasi dan rotasi secara otomatis. Sumber radiasi gamma 137Cs yang terkolimasi mentransmisikan foton gamma menembus obyek uji yang kemudian dideteksi dengan detektor sintilasi NaI(Tl). Kumpulan data proyeksi dibangun menjadi citra menggunakan perekonstruksi citra dengan metode filtered back projection (FBP). Citra hasil rekonstruksi dapat membedakan material dengan nilai densitas yang berdekatan seperti air (1 g/cm3), parafin (0,9 g/cm3), dan pertalite (0,72-0,77 g/cm3). Citra pipa dengan scale dianalisis untuk menghitung persentase area aliran setelah terjadi scaling terhadap pipa normal (pipa tanpa scale). Hasil analisis citra area aliran yang tersisa pada pipa geothermal plant adalah 10,06% dengan 16 proyeksi, 9,86% dengan 32 proyeksi, 9,75% dengan 64 proyeksi, dan 9,76% dengan 128 proyeksi, sedangkan 26,08% pada pipa furnace dengan 32 proyeksi. Sistem yang telah dibangun berhasil memindai obyek, mengakuisisi dan mengumpulkan data, serta membangun dan menganalisis citra untuk menginvestigasi scale di dalam pipa.