bluuebunny/crossref_metadata_2025 huggingface dataset:
ANALISIS PENGARUH GAS OIL RATIO TERHADAP HEAD DEGRADTION PADA SUMUR ELECTRICAL SUBMERSIBLE PUMP
Authors: Yandra Muhammad Almer , Sulistyanto Djoko , Wibowo Djunaedi Agus
Published: March 2022

Produksi sumur minyak mengunakan artificial lift electric submersible pump memiliki beberapa keterbatasan, salah satunya adalah gas yang terproduksi bersama dengan minyak, gas yang terproduksi bersama dengan minyak dapat menurunkan nilai head dari pompa electric submersible pump. Sumur pada penelitian kali ini memproduksi minyak ringan dengan nilai GOR yang tinggi, peningkatan nilai GOR membuat desain electric submersible pump yang terpasang tidak mampu mempertahankan jumlah produksi yang ditentukan, untuk itu dilakukan penelitian mengenai pengaruh head degradation terhadap laju produksi pada sumur ESP dengan GOR tinggi. Penelitian ini menggunkan variabel nilai GOR 3000 scf/stb. Sumur ini mampu untuk berproduksi maksimum 8202,2 STB/day, sehingga laju produksi yang ditentukan sebesar 6600 STB/day. Saat ini telah terpasang pompa ESP tipe Reda S8900N. Hasil desain pada GOR 3000 pompa S8900N tidak mampu untuk berproduksi sesuai yang ditentukan maka dilakukan pergantian pompa Reda H15500N 155 stage dan membutuhkan intake gas separator 80%. Berdasarkan hasil analisis terjadi penurunan head pompa atau head degradation akibat nilai GOR.
EVALUASI RESERVOIR BATURAJA PADA LAPANGAN FALCON DENGAN MENGGUNAKAN SIMULASI RESERVOIR UNTUK MEMAKSIMALKAN PRODUKSI
Authors: Lubis Gerdha Agreska , Djumantara Maman
Published: March 2022

Falcon Field begins with the discovery of the GG-1 wells are explored in August 1974. The program DST performed on one zone at Falcon Field in the Baturaja Formation producing 429 BOPD and 0.14 MMCFD. Then in 1978, Falcon Field was developed by constructing three wells on the platform GGA and in 1988 made eight more wells on the platform GGB. Falcon Field is thepeak production in 1978 amounted to 5670 BOPD. Currently Falcon Field still in production of 1000 BOPD and 451 MCFPD of four wells. Cumulative production in January 2014 at 10.57 and 9.08 MMCF MMBO, and Recovery Factor is currently at 19.2%. Based on the structure map and well log correlation, Baturaja in Falcon Fields has anticline structure with orientation North-South fault. The thickness of zone has 1000 ft (~300 m) with oil column around 100 ft.To conduct field production performance predictions in the future, needs to be done the reservoir simulation modeling where the results are expected to represent the true reservoir model. Grid made in this model has a cell size of 50 mx 50 m with a thickness of 3 ft, 53 layers, and a total of about 650000 cell active cell. In the early, the validation of model is carried out for the initialization by using the Black Oil Simulator model. Initialization is intended to build initial equilibrium of the total hydrocarbon reservoir with the volume control of hydrocarbon static model calculations.The alignment stages of model or History Matching is done to see if the reservoir model that has been created to represent the actual condition of the reservoir. From the simulation reservoir the number of OOIP is 55.07 MMSTB, while OOIP with the static model is 55.2 MMSTB with a difference of 0.2 %.For the development of the Falcon Fields in the Reservoir Baturaja, the study was performed under planned five scenarios, namely the first scenario (base case), the second scenario (base case with the addition of rework moving field), the third scenario (Base case with wellwork and infill), the fourth scenario (Modeling Drawdown), and the fifth scenario (Modeling Downhole Water Sink). Scenario production started in January 2014 until January 2037 for 23 years with the aim to provide maximum drainage. Falcon Field production forecasting results for the first scenario, the second scenario, the third scenario, the fourth scenario, and scenarios fifth consecutive MMSTB of 12.87, 14.66 MMSTB, 15.3 MMSTB, MMSTB 14.01, 14.17 MMSTB with consecutive RF 23:37%, 26.62% , 27.78%, 25.44%, and 25.73%.
EVALUASI PENANGGULANGAN TERJADINYA HILANG LUMPUR PADA PEMBORAN SUMUR “FAZ-32” LAPANGAN “FAZ”
Authors: Asmarani Farisah , Hamid Abdul , Satyawati Listiana
Published: March 2022

“FAZ-32” well drilling on “FAZ” field is a development well which aims to increase the absorption point in Tuban formation. The problem occurs in drilling operations at “FAZ-32” well on “FAZ” field are the mud loss. Mud loss which happens on “FAZ-32” well that is occurs when penetrating Ngrayong Formation and Tuban Formation. Afterwards of drilling the “FAZ-32” well, stretch drill holes 12-1/4 lost circulation occurred at a depth of 7150 ft. Then in the stretch 8-1/2 mud loss occurred at a depth of 7536 ft, 7560 ft and 7641 ft. The problems in drilling wells “FAZ-32”, firstly, what is the cause of lost circulation. Secondly, whether the countermeasure of mud loss are appropriate or not.The methodology used to evaluate response of mud loss are collecting data (data of mud, data drilling, and data pump), make the calculations (mud hydrostatics pressure during loss, formation pressure, formation fracture pressure, equivalen circulating density (ECD) and bottom hole circulation pressure (BHCP), comparing Ph, Pf, BHCP and Pfr to determine the cause of mud loss and evaluating countermeasure of mud loss that has been done in field.Handling mud loss problem at “FAZ-32” well on “FAZ” field is well applied in some loss zone and has reached the desired target depth (productive zone).
PERENCANAAN LUMPUR PEMBORAN BERBAHAN DASAR AIR PADA SUMUR X LAPANGAN Y
Authors: Andreas Junianto Andreas Junianto , Rosyidan Cahaya , Satyawira Bayu
Published: March 2022

Y Field is a field that located on Sumatera Island. That located at Jambi Province precisely. This X well which will be drilled is a development wells at Y field. All of the draw well in this Y Field is an onshore wells. This X well shall be drilled using water-based mud. This water-based mud is used because it is cheaper and more economical than using oil-based. But, this mud needs tobe added an additive because the water-based mud has a deficiency in controlling the formations of clay. Planning of mud system for X well is using method of the offset wells, that is using around of wells data to be used as a comparison. This first X well drilled for hole section 26” by size of casing 20” with depth up to 150 ft and mud which used is type of gel/water. And then it is continued with hole section 17 ½” by size of casing 13 3/8” with continuing the former mud of drilling in hole section 26”. The depth starts from 150 ft until 1000 ft. The next hole section is 12 ¼” by size of casing 9 3/8” which a depth that starts from 1000ft until 4100 ft and using new of mud with polymer mud. Last hole section 8 ½” without casing and using polymer mud to continuing the previous drilling from the depth of 4100 ft until 4900 ft. Problem that faces by this draw well is the presence of faults and high pressure at depths below 1000 ft, so it needs to be prepared LCM (Loss Control Material) and Jumbo Bag to overcome the occurrence of kick.
PERAMALAN KINERJA PRODUKSI MINYAK PADA LAPANGAN “Z” DENGAN MENGGUNAKAN DECLINE CURVE ANALYSIS
Authors: SAPHIRO ZICO
Published: March 2022

Analisa decline ditujukan untuk mengetahui nilai EUR (Estimated Ultimated Recovery) atau perolehan maksimal dari produksi suatu lapangan dann nilai Rf (Recovery Factor) atau presentase perbandingan nilai EUR dengan nilai OOIP (Original Oil In Place).
Penentuan Volume Shale, Porositas, Resistivitas Air Formasi dan Saturasi Air Pada Lapisan P Lapangan C
Authors: Moruk Christiane Patricia Manina , Setiati Rini , Ristawati Arinda
Published: March 2022

Lapangan C yang terletak di wilayah Subang, Jawa Barat terdiri dari beberapa lapisan, salah satunya yaitu lapisan P yang memproduksikan gas. Untuk mengetahui besar cadangan gas pada lapisan P perlu diketahui nilai Gas Initial In Place (GIIP), salah satu data yang diperlukan dalam menghitung GIIP adalah nilai saturasi air. Selain menghitung nilai saturasi air, penelitian ini juga bertujuan untuk menentukan beberapa nilai petrofisik seperti nilai volume shale, porositas, dan resistivitas air formasi. Penelitian akan dilakukan pada dua sumur yaitu CS-02 dan CS-03. Penelitian ini dilakukan dengan menganalis log secara kualitatif dan kuantitatif dengan menggunakan software Geolog. Analisis log secara kualitatif bertujuan untuk menentukan lithology formasi serta menentukan zona hidrokarbon, sedangkan analisis log secara kuantitatif bertujuan untuk menentukan nilai-nilai petrofisik yang dibutuhkan. Nilai volume shale rata-rata yang didapatkan pada sumur CS-02 sebesar 16,48 % dan untuk sumur CS-03 sebesar 20,65 %. Untuk nilai porositas efektif rata-rata pada sumur CS-02 sebesar 20,93 % dan untuk sumur CS-03 sebesar 20,94 %. Nilai resistivitas air formasi akan dihitung menggunakan metode pickett plot dan didapatkan hasil nilai resistivitas air formasi rata-rata pada sumur CS-02 sebesar 0,121 OhmM dan untuk sumur CS-03 sebesar 0,066 OhmM. Untuk perhitungan saturasi air akan menggunakan metode Simandoux. Metode Simandoux biasa digunakan untuk formasi yang mempunyai kandungan shale sebesar 5-30%. Harga saturasi air dengan menggunakan metode Simandoux pada sumur CS-02 dan CS-03 secara berturut-turut yaitu sebesar 0,765 dan 0,125.
STUDI SIMULASI RESERVOIR UNTUK MENENTUKAN POLA INJEKSI SUMUR YANG SESUAI PADA LAPANGAN X
Authors: Darmawan Jason kristiadi , Kasmungin Sugiatmo , Yanti Widia
Published: March 2022

Dalam rangka mempercepat peningkatan produksi, diusulkan untuk dilakukan perencanaan pengembangan dengan dilakukan beberapa sekenario dan injeksi air yang diterapkan untuk lapisan X1 dan lapisan X2 lapangan X. Penelitian ini dilakukan menggunakan simulasi reservoir dengan menggunakan black oil simulator CMG 2015. Data yang diperlukan untuk input ke simulator adalah data PVT, data SCAL, dan data sejarah produksi. Setelah dilakukan input data, kemudian dilakukan inisialisasi, history matching, dan kemudian dilakukan perencanaan pengembangan lapangan dengan 3 skenario yang berbeda. Simulasi dilakukan dengan rentang waktu antara 2019 sampai dengan 2035. Pada simulasi basecase dilakukan terhadap delapan sumur produksi dan satu sumur injeksi existing yang disimulasikan hingga tahun 2035 tanpa mengubah parameter yang berkaitan. Pada simulasi skenario 1 dilakukan workover terhadap 13 sumur yang sudah tidak beroprasi. Pada simulasi skenario 2 dilakukan penerapan pola injeksi air adjusted inverted five spot yaitu gabungan antara inverted four spot dan inverted five spot dengan menambahkan sembilan sumur injeksi. Pada skenario 2 ini dilakukan juga uji sensitivitas laju injeksi. Pada simulasi skenario 3 dilakukan penerapan pola injeksi air adjusted normal five spot dengan menggabungkan normal five spot dan normal four spot dengan menambahkan 45 sumur injeksi Pada skenario 3 ini dilakukan juga uji sensitivitas laju injeksi. Hasil yang di dapat dari penelitian ini didapatkan skenario terbaik adalah skenario 3. Pada skenario ke 3, injection rate terbaik adalah 200 bwpd sehingga dapat menghasilkan kenaikan recovery factor sebesar 5.46% dengan Np sebesar 8.4 MMSTB.
Wellhead Growth Evaluation and Analysis with Stiffness Method; an Onshore Gas Well Case Study
Authors: Darmawan Ganesha R
Published: March 2022

One of the challenges in designing a production or an injector well is the potential of wellhead growth primarily because of casings thermal stress that are connected to the wellhead. Well integrity issue could occur if this movement was not addressed correctly. Casing thermal stress was created by temperature change in production or injection gas or fluids. That temperature change induces uncontrolled heat transfer from tubing to the casing strings in form of casing thermal stress.One of gas field in Indonesia was producing gas with formation water. One well was showing significant wellhead growth during production. The hazard noticed was the stiffness of the surface flowline equipment, as the wellhead moving upward, but the flowline is not free to move. The flange connection between the Christmases tree manifold to the flowline was the weak point, causing the well has to be shut in for further investigations.Well constructions data collection continued with analysis was performed with  stiffness method in multistring well thermal growth model  as explained and developed by Q. Jim Liang[1] to calculate casing thermal stress and wellhead growth. Thermal growth is sensitive to the length of free moving casing sections, as the heat transfer laterally to the casing strings. This paper will evaluate and analyze the cause of wellhead growth on gas production well with stiffness method in multistring casing, and estimating the cement column height on the casings that might cause the measured movement.  A sensitivity of top of cements intermediate and production casing and how it affects the wellhead growth and thermal force. And also comparison forces between   annulus pressure and temperature will also discussed in this paper.
INTERPRETASI DATA SEISMIK DENGAN MENGGUNAKAN SOFTWARE KINGDOM 6.7.1
Authors: Hasib Mohammad , Susilo Adi
Published: March 2022

Seismic method can provide detailed information on the subsurface structure to determine the prospect / potential of hydrocarbons. There are few previous studies have used KINGDOM software in processing and interpreting seismic data to determine hydrocarbon potential. Therefore, in this study we provide an overview of how the KINGDOM software works which can be used as an option in processing and interpreting seismic data. This research area is the area of East Java basin. The data used are secondary data. The seismic data used is the final PSTM - STACK - SUKOWATI 3D. Extension is used in the form of SGY File. Selected area in interpretation is inline within range 6100 to 6500 (dimensionless) and crossline within range 12700 to 13000 (dimensionless), with the increment about 10. KINGDOM 6.7.1 software is used for seismic data processing. Interpretation of seismic data is done to obtain information from seismic data, to provide a conclusion that can be accounted by the analysis of all available information or data in order to determine the subsurface structure of the prospect to do the drilling. As for the 3D, the form of the anticline is seen with details like the shape of the anticline in general. The apparent anticline probably indicates the presence of hydrocarbons (oil and gas).
Evaluation of Aerated Drilling in K-01 Geothermal Well using Guo Ghalambor’s Gas-Liquid Rate Window
Authors: Wardana Raka Sudira , Rasyidah Khansa
Published: March 2022

Common problem in geothermal drilling is loss circulation problem. One of the common methods to cure loss circulation problem is using Lost Circulation Materials (LCM), but in the production zone, using LCM can damage the production zone. Therefore, underbalanced drilling is method that can be used to prevent loss circulation problems in production zone in geothermal well. One of the most common underbalanced drilling methods is aerated drilling or foam drilling. Aerated drilling was used to overcome the loss of circulation problem in production zone in K-01 Geothermal Well. Even though, the aerated drilling was already used, but the loss circulation problem was still occurred. The purpose of this research is to evaluate aerated drilling operation in K-01 Well using Guo Ghalambor’s Gas-Liquid Rate Window and make recommended gas-liquid rate for the next drilling operation. Gas-Liquid Rate Window is constructed using characteristic of the formation, drilling parameters, daily drilling report and also fluid injection characteristics that was used for aerated drilling operation in K-01 geothermal well. Using the constructed Gas-Liquid Rate Window, an evaluation is carried out for the drilling operation in K-01 geothermal well.  The gas-liquid rate parameters used in aerated drilling operations is evaluated while checking the loss circulation event from the mud logging data. After the evaluation of the aerated drilling is carried out in then a suggestion is made for the next drilling operation. Based on the evaluation, the combination of gas-liquid rates that was used on the 9.875"hole section in K-01 Well was in the outside of the constructed GLRW therefore loss circulation problem occurred. The recommended gas-liquid rate combination from this research can be used to determine the gas-liquid rate combination to prevent loss circulation problems, wellbore damage and cutting transport problems.
STUDI LABORATORIUM PENGGUNAAN LUMPUR SMOOTH FLUID 05 DAN SARALINE PADA TEMPERATUR TINGGI
Authors: Rangga Wastu Apriandi Rizkina , Husla Ridha , Zabidi Lilik , Hamid Abdul
Published: March 2022

Dalam operasi pemboran, lumpur pemboran mempunyai peranan yang sangat penting karena memiliki fungsi-fungsi yang tak tergantikan. Kegiatan pemboran berhubungan dengan masalah-masalah yang disebabkan oleh kondisi yang kompleks di formasi karena adanya perubahan temperatur, tekanan, dan kontaminasi dari fluida formasi. Penggunaa lumpur pemboran diperlukan untuk dapat menghadapi permasalahan-permasalahan tersebut.            Pada penelitian mempunyai latarbelakang untuk mengetahuai seberapa berhasilkan penggunaan system lumpur Oil Base Mud berupa Saraline dan Smooth Fluid 05. Diketahui pada pemboran offshore pengaruh tekanan dan temperatur sangat mempengaruhi kualitas dari lumpur yang digunakan. Pada saat sirkulasi lumpur akan mendapat pengaruh temperatur tinggi dari formasi tersebut. Pada pembuatan lumpur pemboran ini dilakukan untuk memperoleh suatu hasil formulasi yang tahan terhadap perubahan temperatur, tekanan, dan kontaminasi oleh karena itu pemilihan aditif sangat penting, terutama jika terjadi perubahan temperatur pada lapangan tersebut serta kompatibel satu sama lain. Pengujian pada lumpur ini yaitu untuk mengetahui apakah terjadi perubahan pada sifat fisik lumpur tersebut seperti densitas, rheology lumpur, filtration loss, dan electrical stability jika lumpur tersebut diberikan perubahan temperatur tinggi.            Berdasarkan hasil penelitian ini bahwa semakin tinggi temperatur maka nilai densitas dan rheology lumpur (plastik viskositas, yield point dan gel strength),  tersebut akan semakin menurun dikarenakan faktor dari suhu tersebut yang membuat lumpur semakin encer. Pada nilai Filtration loss pada kedua sample tersebut menunjukan kenaikan sebesar 4,6 – 5,5 cc/30 menit namun masih dalam batas wajar karna masih sesuai dengan standarisasi yang digunakan. Pada nilai electrical stabilitas pada kedua sample lumpur tersebut menunjukkan semakin tinggi temperatur maka nilai electrical stabilitas pada sample lumpur tersebut akan semakin menurun, namun hasil pada sample lumpur ini mempunyai hasil diatas 500 volt maka komposisi lumpur minyak saraline dan smooth fluid 05 dengan nilai oil water ratio 85:15 mempunyai kandungan oilwet yang sangat baik Kata kunci: Lumpur Pemboran, Oil Base Mud, Temperatur, rheology, Filtration loss, Electrical Stability,  Saraline, Smooth Fluid 05
ROCK QUALITY GROUPING IN SANDSTONE FORMATION USING A CRITICAL POROSITY APPROACH AT FORMATION PRESSURE CONDITIONS
Authors: Rahmawan Sigit , Yasmaniar Ghanima , Prakoso Suryo
Published: March 2022

The methods of grouping reservoir rock types based on the physical properties of rocks that have been studied by previous researchers still have a relatively large value of uncertainty. This uncertainty arises in conditions where rock type grouping is carried out in wells that do not have core sample data. Where we know that in the oil and gas field, not all wells in the field are subjected to rock sampling, either routine core analysis or special core analysis. From these problems, the authors feel the need to carry out this study to create a method for classifying reservoir rock types based on the physical properties of rocks that can be used in wells that do not have core sample data. The rock types in the wells that do not have core samples will be grouped based on the critical porosity value of the rock obtained from the vp value in the acoustic log data owned by these wells. By making an approach model through the critical porosity of rocks from wells that have core sample data, wells that only have acoustic log data can be grouped by using the critical porosity approach which is generated from the vp value of the acoustic log.
KOLABORASI METODE MATERIAL BALANCE DAN SOFTWARE IPM UNTUK MENENTUKAN KEMAMPUAN RESERVOIR
Authors: Fattahanisa Aqlyna , Lestari Lestari , Oetomo Hari K
Published: March 2022

Tujuan dari penulisan ini adalah untuk dapat mengoptimalkan isi awal gas di tempat sehingga dapat memenuhi kebutuhan pasar yang semakin tinggi akan gas bumi dengan mempertimbangkan lama umur sumur, mengetahui nilai dari recovery factor, kumulatif produksi, jumlah gas optimum yang akan dialirkan, serta strategi pemanfaatan gas dari Reservoir A. Metode yang digunakan adalah simulasi perangkat lunak IPM dengan penentuan cadangan atau original oil in place menggunakan medode material balance P/Z, serta koreksi faktor kompresibilitas (Z faktor) menggunakan kombinasi metode antara Winchert-Aziz Correction dan Gopal. Hasil dan kesimpulannya adalah, cadangan yang didapat sebesar 8.9 BSCF, dengan sensitifitas laju alir 1-10 MMSCF, maka dengan pertimbangan perbandingan waktu plateau yang panjang, umur sumur yang panjang dan recovery factor-nya yang besar pada tiap laju alir serta persyaratan PJBG, Reservoir A Sumur F1 mempunyai laju alir optimum 2 MMSCFD dengan jumlah kumulatif produksi senilai 8.08 BSCFD, recovery faktor sebesar 91.86%, lama plateau 105 bulan, umur sumur pada abandon tekanan reservoir 150 psig adalah selama 276 bulan. Dengan demikian, dengan jumlah cadangan gas sebesar 8.9 BSCF sehingga Gas dari Reservoir A dapat dijual kepada konsumen dengan menambah 5 sumur produksi, agar mencukupi minimum penyerahan harian sebesar 11 MMSCFD.serta menambahkan CO2 removal untuk menghilangkan CO2 agar memenuhi kriteria perjanjian jual beli gas (PJBG).
Tabel of Content Vol 4 No 9 2020
Authors: Fattahanisa Aqlyna
Published: March 2022

Tabel of Content Vol 4 No 9 2020
Analysis of Tourism Potential for Development of Pulau Bidadari, Kepulauan Seribu, DKI Jakarta
Authors: Josua Ricky Poda , Budiyanti Rully Besari , Yuslim Silia
Published: March 2022

Kepulauan Seribu is one of the 10 priority tourist destinations proposed by the Ministry of Tourism of the Republic of Indonesia. This destination can be developed into nature tourism with the concept of marine tourism, ecotourism, and adventure tourism. Bidadari Island is one of the Thousand Islands group which has natural tourism potential in the form of beautiful beaches and historical relics in the form of forts. This study uses qualitative research methods with research instruments in the form of observations to identify existing tourism potential based on 4 important components in tourism, namely attraction, accessibility, amenity, and ancilliary. Based on the identification results, a SWOT analysis was carried out with the aim of further directing the development of Bidadari Island. The results of this study are that the tourism potential on Bidadari Island has the potential to be developed as adventure tourism with several improvements and improvements related to its supporting facilities.
Analysis of Landscape Visual Aesthetic Potential in Ocean Dream Samudra Ancol Recreation Area, Jakarta with Visual Resources Assessment Procedure Method
Authors: Fakhira Nisrina , Rostian Titien Suryanti , Fitri Rini
Published: March 2022

Recreation area The Ocean Dream Samudra Ancol, one of the largest aquatic mammal educational recreation areas in Jakarta, is called the largest Oceanarium located in the Taman Impian Jaya Ancol, Jakarta. It has various potentials both from natural and artificial resources in its visual landscape. The landscape arrangement in the Ocean Dream Samudra Ancol recreation area has not been used optimally. This study aims to analyze the visual aesthetic aspects of the landscape to find out the visual aesthetic quality in the Ocean Dream Samudra Ancol recreation area and at activity points that are often visited by visitors. Based on this, it is necessary to analyze the visual aesthetic potential of the landscape in the Ocean Dream Samudra Ancol recreation area through the Visual Resource Assessment Procedure (VRAP) as a method of determining the visual aesthetic value of the landscape by using a variable assessment table at each potential activity point (View Point) with Macro visa assessment approach. The final result of this research study is a value at the point of the activity area that has attractive visual aesthetic potential or not. So that it can be known what values and elements exist that must be maintained, modified, preserved or rehabilitated in the area.
POSSIBILITY REALIZATION OF SUB-DISTRICT PARK AND TPU BASED ON RDTR IN BEKASI CITY
Authors: Setyawati Elisa Ayu , Wartaman Anita Sitawati , Suharto Benny Benyamin
Published: March 2022

To be a sustainable city, the New Urban Agenda (NUA) mandates that every resident must be served by GOS. The GOS provided must be close to the population and evenly distributed in each neighborhood. The neighborhood unit has around 120,000 inhabitants, namely the sub-district. Bekasi City plans in the RDTR to provide sub-district GOS such as a sub-district park and a public cemetery (TPU). The availability of public GOS in Bekasi City is currently 3.73% of the city area in 2019, which is still far from the standard requirement of about 20%. To overcome several problems related to public GOS, especially parks and TPUs, the Bekasi City Government created a program of 1,000 parks spread over 12 sub-districts and preparing TPU land every year. This study aims to examine the possibility of realizing the plan from the government based on the RDTR, land use, and land prices. This research is descriptive with a quantitative approach. Analytical methods used spatial analysis using Geographic Information Systems (GIS) and quantitative descriptive analysis. As a result, the sub-district parks realized about 61% and 39% unrealized, and TPUs about 57% realized and 43% unrealized. The possibility of realization, namely the government's ability, is likely big or small. The possibility of realization can be a direction for development like sub-district priorities based on distribution and quantity. To fulfill the distribution required high costs due to the high price of land. However, to fulfill the quantity, looking for sub-districts with large areas and big opportunities for realization.
ANALYSIS OF NATURAL TOURISM POTENTIAL OF SEMANGAT GUNUNG VIILAGE KARO REGENCY, NORTH SUMATERA WITH QUANTITATIVE QUALITATIVE DESCRIPTIVE METHOD
Authors: Sinuraya Sherly Ennina Maretha , Rostian Titien Suryanti , Pangaribowo R L
Published: March 2022

A brief, clear and comprehensive summary of the contents of the article containing :North Sumatra Province has natural, cultural, historical and culinary tourism resources well-known at home and abroad. There are many natural and cultural attractions which is the advantage of North Sumatra Province, one of the regencies located in North Sumatra, has a very interesting landscape for it’s culture and nature, namely Karo Regency.One of the villages in Karo Regency, North Sumatra has a various natural and cultural attraction, namely Desa Semangat Gunung, among others the state of the flora and fauna of an area with natural landscape such as forests, mountains, and so on which includes the physical condition of an area. How is the potential for natural tourism which if found in the Desa Semangat Gunung with qualitative descriptive method techniques quantitative?This study aims to analyze the natural tourism potential of Desa Semangat Gunung as tourism villages. The method used in this research is descriptive quantitative qualitative. The tools and materials used are hardware such as laptops, writing, software such as miscrosoft, photoshop, autocad and etc.The results of this study plan Desa Semangat Gunung as a tourism village based on nature tourism by looking at visuals the existing landscape in the village area Keywords: analysis of the potential for natural tourism, tourist villages, mountain spirit villages, disticts karo
STUDY ON EFFECTIVE NOISE BARRIER AT SENIOR HIGH SCHOOL (SMAN 02) CIBINONG
Authors: Ramandha Aulia , Yulyanto Wisnu Eka , Madonna Sandra
Published: March 2022

Aim: The aim of this study is to design noise barrier shapes and to investigate its effectiveness in reducing traffic noise at one public school in Indonesia. Methodology and Results: Two types of barriers were designed on a laboratory scale using plywood materials and the noise level was measured using Noise Analyzer Briiel and Kjaer Type 2250. Noise reduction was analyzed by using the Insertion Loss method based on the difference of the noise level before and after implementing the barrier. The results show that the barrier Type II with a length of 200 cm, a receiver height of 30 cm, and a curved shape of 45° angle (Type L) is more effective in reducing the noise than the other variation of barrier shape and length. Barrier Type L (Type II) can reduce the noise at high frequency between 1–8 kHz with an Insertion Loss value of 6.9–27.9 dB. Conclusion, significance and impact study: The noise barrier Type II, with specifications of 20 m length, 3 m height, and barrier material of reinforced concrete, is recommended to be used at the high school to reduce the road traffic noise.
THE PROSPECT OF DIGITALLY ENHANCED COLORIMETRY AS AN ANALYTICAL METHOD FOR WATER QUALITY DETERMINATION
Authors: Hakiki Rijal , Wikaningrum Temmy
Published: March 2022

Aim: This study aims to observe the potential implementation of analytical methods based on digital image processing as an alternative method of colorimetric analysis that can be implemented in site. Methodology and Results: Pt-Co standard series solutions at concentrations of 5, 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100 concentration units (CU) were measured by spectrophotometric method and digitally enhanced colorimetric (DEC) method to obtain a response in the form of absorbance (Abs) and area under curve (AUC) value. Absorbance measurement was carried out at 317.5 nm (λ max). The AUC value was obtained from the 3-point RGB value measurements, made average so that a color band is produced, then quantified by translating the color band intensity into the response curve in ImageJ software. The Abs and AUC values of artificial samples are processed into CU values with linear equations resulting from linear regression test. The results of the calculation of CU values from the two measurement methods were tested using independent t test method to examine significant differences between the two measurement methods. Conclusion, significance and impact study: Coefficient of determination (R2) plot CU VS AUC = 0.8638, in independent t test was obtained p-value = 0.4246 at the 95% confidence level. Therefore, it can be concluded that digitally enhanced colorimetric could be used to determine water quality, especially color parameter in site measurement.
EVALUATION OF WASTE MANAGEMENT ACHIEVEMENT IN PADANGTEGAL PEKRAMAN VILLAGE, UBUD SUB DISTRICT, GIANYAR DISTRICT, BALI
Authors: Widyarsana I Made Wahyu , Salmaa Kania
Published: March 2022

Aim: This study aims to evaluate the practice of waste management system conducted by community and business units in one traditional village in Bali and to discover the contributing factors to the success of the practice. Methodology and Results: A set of waste sampling method, observation, and interview were conducted to collect the basis data for the data calculation and analysis. The results show that the waste generation in Padangtegal Village currently reaches 38.18 m3/day or 1145.41 m3/month, with the largest weight composition from leaves and twigs waste (39.87%), food waste (29.07 %), and plastic (13.11%). With 100% of waste handling service, the processing of waste carried out in the area only reached 5.06% of 3R behavior (reduce, reuse, and recycle) at the source, and 1.10% composting at the composting house (Rumah Kompos). Conclusion, significance and impact study: Most of the processing carried out at Temesi Recycling is through composting (33.98%) and recovery of recycled material (33.68%), resulting in a residue (26.19%) which is transported to the Suwung Landfill. It could be concluded that organic waste processing through composting and recycling non-organic waste could reduce waste volume transported to the landfill about 67%.
Serous fluids and hematolymphoid disorders
Authors: Gabali Ali
Published: March 2022

Diagnosing hematolymphoid neoplasm by evaluating fine-needle aspiration (FNA) cytology sample is controversial and requires experience and clinical skills. This concept becomes more challenging when evaluating hematolymphoid neoplasm in body fluid. Differentiating between low-grade lymphoma and reactive lymphocytes is often difficult by morphology alone as reactive lymphoid cells may acquire activation morphology from being exposed to different cytokines within the body fluid. However, in most cases there are specific features that may aid in differentiating small reactive from non-reactive lymphocytes including the round shape of the nucleus, the absence of visible nucleoli and the presence of fine clumped chromatin. In large cell lymphoma and leukemia cells involvement of body fluid this concept becomes less challenging. Large cell lymphoma and leukemia cells tend to have large size nuclei, less mature chromatin, and visible nucleoli with and without cytoplasmic vacuoles. However, to reach accurate diagnosis and subclassification, the utilizing of flow cytometry, to confirm monoclonality, and other ancillary studies such immunocytochemistry, cytogenetics and molecular studies is needed. This review article will be incorporated finally as one of the chapters in CMAS (CytoJournal Monograph/Atlas Series) #2. It is modified slightly from the chapter by the initial authors in the first edition of Diagnostic Cytopathology of Serous Fluids.
Skin as an endocrine organ: A narrative review
Authors: Datta Debatri , Madke Bhushan , Das Anupam
Published: March 2022

Skin being the largest organ of the body, is equipped with numerous functional properties. Over the past few years, intricate research into the biology of skin has led to a gamut of discoveries. Skin is now regarded as one of the most vital endocrine organs. The skin contains equivalents of the hypothalamo-pituitary-adrenal axis, hypothalamo-pituitary-thyroid axis and the appendages produce multiple hormones such as Vitamin D, sex steroids, retinoids and opioids. In this article, we will explore the role of skin as a target and source of some of the hormones of the human body, and briefly touch on the clinical applications.
BUSINESS RISKS, ECONOMIC RISKS AND ENTREPRENEURIAL RISKS: ECONOMIC ESSENCE AND RELATIONS OF CONCEPTS IN THE THEORY AND LEGISLATION OF UKRAINE
Authors:   Lviv Polytechnic National University, Tyrkalo Yuriy
Published: March 2022

The article reveals the economic essence of the concepts of «business risks», «economic risks», «entrepreneurial risks», based on the relationship of these concepts in the theory and legislation of Ukraine. It is determined that business risks are risks associated with the implementation of economic activities of economic entities, namely the manufacture and sale of products, works, services. It is proved that economic risks arise in the context of economic activities of economic entities. It is established that economic risks include: risks of external influence, risks of internal influence, risks of micro-, meso-, macro-level, permanent, long-term, medium-term, short-term risks, risks that cause insignificant losses, risks that cause significant losses, risks that can be insured, risks that cannot be insured, financial, commercial, investment, innovation, production, currency, interest rate risks, etc. It was found that entrepreneurial risks reflect the level of success or failure of the entity engaged in entrepreneurial activity in comparison with the indicators determined by the strategy of its development and sustainable operation. In the perspective of further research, it is proposed to consider a set of risks that have a negative impact on the functioning of economic entities in accordance with uncertain and unexpected conditions of the external and internal environment.
Coordination Chemistry in Europe since Alfred Werner
Authors: Venanzi Luigi M.
Published: March 2022

The development of coordination chemistry in Europe since Alfred Werner's epoch-making 1893 publication is reviewed. Mention will be made of the work done by the German School (P. Pfeiffer, F. Hein, W. Hieber, W. Reppe, W. Klemm, E.O. Fischer), the French School (M.
Délépine, R. Charronat, A. Joly, J.-P. Mathieu), the Scandinavian School (K.A. Jensen, J. Bjerrum, I. Leden, L.G. Sillen), the English School (F.G. Mann, J. Chatt, R.S. Nyholm, G. Wilkinson), the Russian School (L.A. Chugaev, I.I. Chernyaev, A.A. Grinberg,
K.J. Jatzimirski), the Italian School (A. Miolati, L. Cambi, L. Malatesta, P. Chini), and the Swiss School (G. Schwarzenbach).
Single Molecule Spectroscopy in Shpol'skii Matrices
Authors: Plakhotnik Taras , Moerner W.E. , Irngartinger Thomas , Wild Urs P.
Published: March 2022

Optical detection and spectroscopy of single molecules has recently been achieved in solids at very low temperature. Until now only three host-guest combinations have fulfilled the stringent requirements for high-resolution single-molecule spectra. A large absorption cross section has
to be paired with high fluorescence quantum yield, high photochemical stability, as well as the absence of any significant shelving in a bottleneck state. The photophysical properties of the single fluorescent molecule are strongly influenced by its 'nano-environment'. Here we report the properties
of a new system: terrylene in the Shpol'skii matrix hexadecane. In this system a peak emission rate more than 107 photons/s is achieved. It is expected that such a Shpol'skii system is a prototype of a new class of materials which allow single-molecule spectra to be
easily recorded.
Pedrero Esteban, L. M. y Pérez Escoda, A. (Eds) (2020). Cartografía de la comunicación postdigital: Medios y audiencias en la sociedad de la COVID-19
Authors: Piñeiro-Otero Teresa
Published: March 2022

En las últimas décadas hemos asistido a una transformación integral del sistema comunicativo. La adaptación a Internet, la multiplicación e hiperconectividad de dispositivos receptores así como como la progresiva digitalización de los medios, sus procesos de producción y distribución, han propiciado cambios radicales en los contenidos y su recepción, pero también en la morfología del sistema mediático y sus profesionales.
Activity of Gaharu (Aquilaria malaccensis Lam) Leaves Extract and Fraction as Herbal Drug Against α-Glucosidase Inhibition
Authors: Aris Suhardiman  , Ketut Adnyana I.  , Ika Kurnia Sukamawati  , Titin Rostinawati
Published: March 2022

Diabetes mellitus in 2020 in the world was 422 million people, and 1,6 million deaths are directly attributed to diabetes each year. Diabetes mellitus is a disease characterized by increased levels of glucose in the blood due to impaired function of the pancreas gland in producing the hormone insulin. One of the mechanisms of action of the antidiabetic drug class is α-glucosidase enzyme inhibitors. Compounds that play a role in the inhibitory activity of the α-glucosidase enzyme from plant extracts are flavonoids. Agarwood (Aquilaria malaccensis Lam) plants contain secondary metabolites such as alkaloids, flavonoids, saponins, quinones, tannins and steroids/triterpenoids. Gaharu leaves were extracted by maceration method using 96% ethanol solvent, then the extract obtained was fractionated using a liquid-liquid extraction method with n-hexane, ethylacetate and methanol-water as solvents. The extracts and fractions obtained were tested for inhibition of the α-glucosidase enzyme as measured by a microplate reader at a wavelength of 405 nm and acarbose as a comparison. The inhibitory activity of the α-glucosidase enzyme is expressed by the IC50  value. The inhibitory activity of α-glucosidase enzyme from extracts and fractions of n-hexane, ethylacetate and methanol-water were 90,87 µg/ml; 908,53 µg/ml; 89,78 µg/ml and 35,89 µg/ml and acarbose 19,08 µg/ml. The methanol-water fraction showed a very strong inhibitory activity against the α-glucosidase enzyme.
The effect of age on the clinicopathological features of oral squamous cell carcinoma
Authors: Saeed Alaa S , Abdullah Bashar H
Published: March 2022

Background: Squamous cell carcinoma is a disease of elderly peopleand it is uncommon in people with less than 40 years old; however many literatures revealed that tumor developing in patients younger than forty years appears more aggressive at the time of diagnosis. The purpose of the present study was to focus on the clincopathological features of the oral SCC in different age groups. Material and methods: In this study thirty five cases of paraffin embedded tissue blocks of oral squamous cell carcinoma were studied. The age range was from 16 to 80 years. The clinicopathological data were recorded for evaluating the tumor characters according to age of patients. Results : The age was not significantly correlated to the clinicopathological features that involved the gender of the patients, anatomical site of the tumor, perineural invasion , histological grading and staging .
MENUMBUHKAN JIWA ENTREPRENEURSHIP MUSLIM YANG SUKSES
Authors: Fadillah Nur
Published: March 2022

AbstractEntrepreneurship spirit  of Prophet Muhammad, does not just happen, but the result of a long process and started from his childhood (Antonio 2008). This opinions is agreed by most teachers leadership that said what occurred in the first years of our lives, will make a meaningful difference in the next life period Majority,  Indonesian is Muslim. Hence, it becomes a task to be able to give birth to the entrepreneur (entrepreneur) Muslim reliable. Therefore, throughout the history of Islam began, the Muslim entrepreneur born and incised gold ink in the history of the world. Mohammed, before being known as prophet, has been recorded as an entrepreneur.Personal success is personal to identify, optimize potency, identity continuously with full confidence and strong self confidence. Then the person utilizing the potential so beneficial for families, neighbors and other community members, and the environment. The value of the benefit is called a success.A successful businessman, according to Islam, is who is running the commands of Allah in all its aspects, including in its business, away from enforcing the lawful and the unlawful. Then the whole business is obtained solely to enforce his servitude to Allah SWT. Keywords: Entrepreneurship, Business Ethics Islam, Small Business AbstrakJiwa kewirausahaan (enterpreneurship) dalam diri Nabi Muhammad SAW, tidak terjadi begitu saja, tetapi hasil dari suatu proses panjang dan dimulai sejak beliau kecil. Pendapat ini diakui oleh kebanyakan guru leadership yang sepakat bahwa apa yang terjadi pada tahun-tahun pertama kehidupan manusia, akan membuat perbedaan yang berarti dalam periode kehidupan berikutnya.Mayoritas bangsa Indonesia adalah muslim. Dengan demikian merupakan tugas bersama untuk mampu melahirkan para entrepreneur (pengusaha) muslim yang handal. Sebab, sepanjang sejarah Islam dimulai, para entrepreneur muslim lahir dan menorehkan tinta emasnya dalam sejarah dunia. Rasulullah SAW sebelum menjadi rasul telah tercatat sebagai entrepreneur.Pribadi yang sukses adalah pribadi yang bisa mengenal, mengoptimalkan potensi, jati diri secara terus-menerus dengan penuh kepercayaan dan keyakinan diri yang kuat. Kemudian orang tersebut mendayagunakan potensinya sehingga bermanfaat untuk keluarga, tetangga maupun anggota masyarakat lain, dan lingkungannya. Nilai kemanfaatan inilah yang disebut sukses.Seorang pengusaha yang sukses, menurut Islam, adalah yang menjalankan perintah Allah SWT dalam seluruh aspeknya, termasuk dalam usahanya, menegakkan yang halal dan menjauhi yang haram. Kemudian seluruh usaha yang diperolehnya semata-mata adalah untuk menegakkan penghambaan dirinya kepada Allah SWT semata.Kata Kunci: Kewirausahaan, Etika Bisnis Islam, Usaha Kecil
Pengaruh Kualitas Pelayanan Dan Fasilitas Pendukung Terhadap Kepuasan Pelanggan Stasiun Lempuyangan Yogyakarta
Authors: Puspita Richa Mega , Santoso Singgih
Published: March 2022

Setiap perusahaan pasti akan melakukan berbagai macam upaya untuk memberikan kepuasan kepada para pelanggannya, begitu juga pihak manajemen stasiun kereta api Lempuyangan Yogyakarta.  Permasalahan yang dikaji dalam penelitian ini adalah menguji pengaruh dimensi variabel kualitas pelayanan yang meliputi keandalan, daya tanggap, jaminan, empati, dan bukti fisik, serta variabel fasilitas pendukung terhadap kepuasan pelanggan Stasiun Lempuyangan Yogyakarta. Jenis penelitian ini adalah kuantitatif dengan menggunakan alat analisa regresi linear berganda. Data diperoleh melalui penyebaran kuesioner kepada 100 orang responden yang diambil melalui metode incidental sampling. Berdasarkan hasil pengujian hipotesis yang dilakukan dapat disimpulkan bahwa variabel keandalan dan empati secara parsial tidak berpengaruh terhadap kepuasan pelanggan Stasiun Lempuyangan Yogyakarta. Sedangkan variabel lainnya yaitu daya tanggap, jaminan, dan bukti fisik serta fasilitas pendukung secara parsial memiliki pengaruh yang positif dan signifikan terhadap kepuasan pelanggan Stasiun Lempuyangan Yogyakarta.
Model Penerapan Informasi Pada Usaha Kecil Dan Menengah Di Kota Palembang
Authors: Maretha Fetty , Sepriansyah Sepriansyah , Gunawan Ahmad Ari
Published: March 2022

Tujuan penelitian ini adalah membuat model penerapan informasi pada UKM di Kota Palembang yang baru berdiri tiga tahun. Jenis Penelitian ini adalah kualitatif berupa analisa (strengths), kelemahan (weaknesses), peluang (opportunities), dan ancaman (threats) yang disingkat SWOT. Jumlah responden sampel sebanyak 116 orang pelaku/pemilik UKM di Kota Palembang yang baru berjalan selama tiga tahun dan memiliki hasil penjualan maksimal Rp300.000.000/tahun. Teknik pengumpulan data berupa wawancara dan observasi.  Hasil penelitian menunjukan bahwa perlunya komitmen pemilik UKM, karena akan menguatkan konsep  analisis kebutuhan pemanfaatan teknologi informasi. Zona informasi broadscope diperlukan untuk memperhatikan pesaing, kematangan perencanaan keuangan masa depan, dan untuk memperkuat keunikan usaha. Setelah hal tersebut dipenuhi maka dilakukan implementasi teknologi informasi dan digitalisasi marketing yang nantinya akan menunjang  efisiensi operasional usaha dan peningkatan strategi pemasaran. Pada posisi inilah zona peran pihak eksternal, peran penting berbagai pihak diperlukan. Hasil akhirnya adalah peningkatan pada kinerja UKM yang ditunjang oleh kuatnya orientasi kewirausahaan para pemilik usaha.