bluuebunny/crossref_metadata_2025_split huggingface dataset:
Роль гиперлокальных медиа в коммуникации между властью и обществом в российских регионах
Authors: Довбыш Ольга Сергеевна 
Published: September 2020

Гиперлокальные медиа в России, представленные главным образом городскими публичными группами на платформах социальных медиа, в последнее время становятся важным элементом локальной медиа сферы в российских регионах. Наряду с информированием жителей о событиях города, такие группы выступают площадками для общественных обсуждений, поддерживают местные сообщества и различные гражданские инициативы. Активное присутствие представителей власти на этих площадках делают группы важным пространством и каналом коммуникации между местной властью и обществом. На примере городских публичных групп в статье анализируется в какой степени низовые, непрофессиональные медиа инициативы могут обеспечивать коммуникацию между властью и гражданами в российских регионах и как такое вовлечение жителей в обсуждение городских вопросов влияет на локальное управление. Материалы интервью с владельцами и модераторами пуб­личных групп семи российских городов, а также данные цифровых наблюдений показывают основные практики коммуникаций между жителями и представителями власти в пространстве социальных медиа, возможности таких групп мобилизовать общественные обсуждения. Гиперлокальные медиа обладают значительным потенциалом, чтобы выполнять роль канала коммуникации между гражданами и органами власти в регионах. В отличие от профессиональных масс медиа они обладают большей свободой в выборе тем и вопросов для обсуждения и в предоставлении возможности высказываться жителям города. Размер аудитории и популярность в городе делает эти медиа влиятельным каналом коммуникации в локальном пространстве. Факторы, влияющие на дальнейшее развитие таких групп, включают риск кооптации групп властью и приз­наки «псевдоучастия», когда возможности влиять на изменения и принятия решений ограничиваются темами и сферами, которые одобряет и поддерживает местная власть. Также сохраняется значительный разрыв между вовлечением граждан в «информационное участие» и их реальным участием в местном управлении. Наконец, на развитие городских групп в качестве канала коммуникации влияет их неустойчивость, желание собственника коммерциализировать проект, что приводит к преобладанию развлекательного и нейтрального, непроблемного контента.
Социальный цирк в постсоциалистической России: кейс-стади новой солидарности
Authors: Ярошенко Светлана , Шорн Астрид 
Published: September 2020

В статье на основании результатов изучения российской общественной организации, созданной в начале 2000-х гг., ориентированной на развитие потенциала детей и подростков из групп социального риска (с уличным опытом, из бедных семей), анализируется, каким образом происходит их включение в общество, как с помощью цирковых методов и социально ориентированного активизма удается решать проблемы исключения и воспроизводства бедности. Рассматриваются смыслы, приписываемые социальному цирку участниками, сотрудниками и сторонниками; раскрываются стратегии включения групп разных социальных классов в цирк и как эти стратегии поддерживаются в процессе взаимодействия с внешними сторонами (гражданскими активистами, местным сообществом, чиновниками и спонсорами). Таким образом реконструируется концепция включения, представленная как процесс разворачивания потенциала, когда с реализацией внешних возможностей происходит накопление внутренних ресурсов, а также усиливается способность действовать и производить позитивный эффект. Авторы показывают, что включение социально-уязвимых групп может менять структуры возможностей на практике при наличии трех условий. Во-первых, через изменение статуса – когда негативная идентификация не только переворачивается по смыслу, но и формирует платформу для практического продвижения особого статуса и различий участников, с учетом их интересов. Во-вторых, установка на достижение усиливает позиции участников, если она сочетается с формированием социальных навыков по их согласованию. В-третьих, возможности аккумулируются, если закрепляются в эмансипационных способах взаимодействия на индивидуальном, групповом и локальном уровнях, предполагающих осознание причин угнетения, продвижение интересов уязвимых групп, приращение их опыта и расширение социальных связей. В заключение рассматривается рефлексивная солидарность, предполагающая совместную выработку моральных ориентиров и вариативность их реализации.
Diffusion MRI with quantification of ADC value in characterization of benign and malignant hepatic lesions and their correlation with cyto-histopathology
Authors: Sharma Sachal , Dalal Vipin , Prem Kumar G , Malhotra Payal 
Published: September 2020

Diffusion weighted Imaging (DWI) is a useful noninvasive tool in MRI as it can be performed quickly and does not require contrast injection. In addition to it, DWI imaging and apparent diffusion coefficient (ADC) quantification not only can add additional anatomical data about the lesion but can also help in characterization of focal liver lesions into malignant or benign. The study attempts to establish a cut off value of ADC differentiating a benign from malignant lesion.32 patients with age group of 40-85 years with 46 diagnosed focal liver lesions on CT and MRI were included in the study. MRI was performed using 1.5 Tesla GE Healthcare HDxT machine. Conventional sequences followed by diffusion weighted sequences were acquired. Quantitative analysis was derived from ADC maps with calculation of ADC values. ADC values of the hepatic lesions were compared with histopathology as reference standard and analyzed statistically. In this study, 25 focal lesions in 18 patients had histopathological diagnosis of malignant pathology and had mean ADC value 1.13(x10mm/s) and 21 lesions in 14 patients with histopathological diagnosis of benign pathology had ADC value of 1.63(x10mm/s). Statistically significant difference between ADC value of benign and malignant lesions was found.: The study proclaimed that DWI with ADC quantification be used as an additional non invasive MRI tool to differentiate benign and malignant hepatic lesions with a sensitivity of 85.7%, specificity of 88%, PPV of 88% and NPV of 85.7%
ANALISIS KINERJA AIR HEATER DI PLTU ASAM-ASAM UNIT 2
Authors: Irawan Irawan , Mursadin Aqli 
Published: September 2020

Indonesia as one of the largest coal producers utilizes this advantage by establishing a steam power plant, one of which is Borneo south PLTU power plant PT.PLN (persero) south of Borneo and Central Borneo Asam-Asam generation sector. One important component of PLTU is air heater to raise the combustion air temperature. Initial heating of ljungstrom type lattest regenerative air heater in PLTU Asam-Asam unit 2 is carried out cleaning and maintenance on seal and gas side surfaces to optimize heat transfer coefficient and ratio of air intake ratio exposed by forced draft fan and air heated by flue gas in heater air heater elements and transferred to the combustion chamber to make efficient use of new fuel. Measurements were carried out on August 9, 2017 for 2 hours to find out the average value of heat transfer coefficient and temperature comparison of entry and exit from air heater of Asam-Asam unit 2 steam power plant. This research was conducted to find out the value of heat transfer coefficient and air temperature ratio with measurement on the inlet and outlet for two hours. The results of the air heater performance analysis in in PLTU Asam-Asam unit 2 steam power plant in terms of the highest heat transfer coefficient was 62.75 W/m^2.℃ at 2:04 PM, while the lowest heat transfer coefficient was 62.37 W/m^2.℃ at 3:10 PM, and the average heat transfer coefficient is 62.50 W/m^2.℃ . While the highest water heater ratio 9.70 at 3:44 PM and the lowest ratio 8.32 at minute 3:09 PM, and the average water heater ratio 9.01. Heater water heater elements in good condition and performance in receiving and releasing heat. Keywords: Air Heater, Heat Transfer Coefficient, Temperature Ratio, Heating Elements
PENGARUH TEMPERATUR TUANG DAN JENIS MATERIAL AL RONGSOK (PISTON SEPEDA MOTOR DAN KALENG MINUMAN) TERHADAP POROSITAS, KEKERASAN, DAN STRUKTUR MIKRO HASIL PENGECORAN EVAPORATIVE
Authors: Jurni Muhammad , Siswanto Rudi 
Published: September 2020

Aluminum used many generated from household, workshop, office, factory and so on. All this time, the Al scrap is only collected by the owner and sold to the foundry foundry industry. It can be recycled into various products for various alternative products and has the potential to become a source of business. The evaporative casting method is to use Styrofoam as a pattern dumped in the printed sand. This method will produce castings that match the pattern of Styrofoam made. Melting is done by liquefying Al in a crucible furnace and then poured with a variation of casting temperatur of 650°C, 700°C, 750°C, 800°C. The objective of this research is to know the temperatur of pouring temperatur and material type to micro structure, porosity, and hardness of evaporative casting. The smelting furnace uses a crucible furnace with charcoal wood fuel. Materials used for casting Al scrap piston motorcycles and beverage cans. From the observation of the microstructure shows that the higher temperatur of the dendrite chamber size will change from short thin flakes to flakes. The thicker the thicker the lighter the export the higher and the higher the hardness. Keywords: Evaporative Casting, Effect Of Casting Temperatur
PROSES MANUFAKTUR TURBIN ANGIN SUMBU VERTIKAL TIPE DARRIEUS
Authors: Effendi Rian , Siswanto Rudi 
Published: September 2020

Wind turbine is one of the tools yamg work to take advantage of wind allergy. Wind turbines based on the type of rotor there are two types of Darrieus wind turbines and Savonius wind turbines. In the manufacturing process using a type of wind turbine type Darrieus. The darrieus turbine is a wind turbine that utilizes the lift style on the rotor blade. This turbine requires initial energy to spin. The formulation of the problem in making this wind turbine is How does the manufacturing process of vertical turbine type darrieus wind turbine and How much is the cost budget on the manufacturing process of the darrieus type verical wind turbine. The components of the wind turbine are the foot frame, bearing bearings, bearings, shafts, disks, blade arms, blades, transmission pulleys and belts-v, while the tools and machinery used in the manufacturing process are electric welding tools, electric grinding wheels, , hand drilling machine, sitting drilling machine, cut lever, riverter pliers, acetylene welding and lathe. Keywords: Wind Turbine, Turbine Components, Tools and MachinesApple, JM. Tata Letak Pabrik dan Pemindahan Bahan. Bandung : Penerbit ITB, Terj. Nurhayati Mardiono.,1990.Maheswari Hesti,Achmad Dany Firdauzy.2015. “Evaluasi Tata Letak Fasilitas Produksi Untuk Meningkatkan Efisiensi Kerja Pada Pt. Nusa Multilaksana. Fakultas Ekonomi”. Jakarta:Universitas Mercu Buana.Susetyo Joko dkk.2010. “Perancangan Ulang Tata Letak Fasilitas Produksi Dengan Pendekatan Group Technology Dan Algoritma Blocplan Untuk Meminimasi Ongkos Material Handling”. yogyakarta:AKPRIND.Nova St Meirizha. 2014. “Perancangan Ulang Tata Letak Fasilitas Pada Hanggar Pemeliharaan Pesawat Hawk 100/200 Di Pangkalan Udara Roesmin Nurjadin”. Riau: Program Studi Teknik Industri, Fakultas Teknik,Universitas Muhammadiyah.Wignjosoebroto, sritomo. Tata letak pabrik dan pemindahan bahan. Surabaya: penerbit guna widya., 1996.
ANALISIS KINERJA BOILER DI PT. PLN (PERSERO) WILAYAH KALIMANTAN SELATAN KALIMANTAN TENGAH SEKTOR PLTU ASAM - ASAM
Authors: Perageminisko Jenta Yudi , Mursadin Aqli 
Published: September 2020

Boiler is a tool that serves to convert water into pressurized steam. In the heat causes heat boiler heat transfer through the water into pressurized steam that is heated from the fuel in the furnace.And often a problem of burning in the boiler is less than the maximum. Because the incoming energy is energy derived from the fuel, there is some energy lost during the combustion process it happens because the fuel has a low heat so that the combustion is not maximal cause the boiler performance is reduced. To avoid this, it is necessary to maintenance for the boiler component in order to improve performance. Direct method is "input - output method" because this method uses only the heat in the fuel and steam coming from the boiler output. Boiler efficiency of research results from the date of March 27, 2017 until the date of 10 April 2017 with a total average - average efficiency were analyzed, namely 74.4%. On April 3, 2017 the calculated efficiency of 76.57% indicates that the boiler performance is still feasible to operate but on April 4, 2017 the boiler efficiency becomes 71.59%. Boiler efficiency at commissioning, with boiler efficiency of 85.13% and in 2017 done the boiler efficiency calculation theoretically on 27 March until 10 April 2017 with total average 74.4% where the efficiency decrease equal to 10.73%. Factors affecting the efficiency ratio are in the coal content used. Keywords:Boiler, Performance, Direct Method
PENGARUH AKTIVASI (KIMIA – FISIKA) PADA ARANG KAYU LABAN TERHADAP EFEKTIVITAS PEMURNIAN BIOGAS & UNJUK KINERJA GENERATOR – SET
Authors: Suwarno Hadi , Samlawi Ach. Kusairi 
Published: September 2020

Penelitian ini bertujuan untuk melihat pengaruh aktivasi (kimia - fisika) pada arang kayu laban terhadap efektivitas pemurnian biogas dan kinerja generator - set. Dalam penelitian ini bahan yang digunakan sebagai media adsorben adalah arang kayu bubuk laban 40-mesh dengan variasi: tidak ada perawatan & aktivasi (kimia - fisika) dalam bentuk arang kayu arang bubuk 40-jala menggunakan NaOH 48% sebagai aktivator untuk 24 jam kemudian dikeringkan menggunakan tungku pada suhu 100 oC selama 1 jam. Setelah itu, arang kering dipanaskan menggunakan tungku pada suhu (550 oC, 650 oC, & 750 oC) selama 1 jam. Pengujian dilakukan dengan menggunakan gas analyzer, tachometer, & infrared thermometer. Hasil pengujian menunjukkan bahwa variasi dengan aktivasi (kimia - fisika) pada 750 oC memberikan pengaruh terbaik terhadap efektivitas pemurnian biogas dengan nilai 21% untuk efektivitas karbon dioksida (CO2) & 42,77% untuk efektivitas metana (CH4), serta kinerja genset menunjukkan stabilitas tegangan yang buruk di mana tegangan tetap stabil tanpa beban tetapi tidak stabil saat diberi beban. This study aims to see the effect of activation (chemical - physics) on laban wood charcoal to the effectiveness of biogas purification and performance of generator - set. In this study the material used as an adsorbent medium is a 40-mesh powdered laban wood charcoal with variation: no treatment & activation (chemical - physics) in the form of a 40-mesh powdered charcoal wood charcoal using NaOH 48% as activator for 24 hours then dried using furnace at 100 oC for 1 hour. After that, the dried charcoal was heated using the furnace at temperature (550 oC, 650 oC, & 750 oC) for 1 hour. The test was performed by using gas analyzer, tachometer, & infrared thermometer. The test results showed that variation with activation (chemical - physics) at 750 oC gave the best influence to the effectiveness of biogas purification with value of 21% for carbon dioxide (CO2) effectiveness & 42,77% for methane (CH4) effectiveness , as well as the performance of generator set indicates poor voltage stability where the voltage remains stable at no load but unstable when given the load.
PENGARUH PENGGUNAAN CATALYTIC CONVERTER BERBAHAN KAOLIN ADITIF TEMBAGA (Cu) TERHADAP PERFORMA DAN EMISI GAS BUANG PADA KENDARAAN BERMOTOR SATRIA F 150
Authors: Prasetiyo Arif , Ghofur Abdul 
Published: September 2020

Tujuan dari penelitian ini adalah untuk menentukan penggunaan penambahan katalis berbentuk keramik pada saluran pembuangan kendaraan bermotor Satria F 150. Penelitian ini menggunakan metode eksperimen. Data dalam penelitian ini adalah gas CO2, CO, HC. Penelitian ini dilakukan di kantor lingkungan Banjarmasin dengan menggunakan alat analisa gas dan juga dilakukan di bengkel plug and play Banjarmasin dengan menggunakan dinamometer. Teknik yang digunakan dalam pengumpulan data adalah variasi dalam rpm, campuran dan dimensi. Hasil dari penelitian ini adalah: catalytic converter dengan variasi dimensi 2 cm dan 3 cm, tingkat pengurangan emisi CO2 maksimum adalah 21,91% dalam komposisi C rpm 5000, tingkat pengurangan emisi CO adalah 61,71 % dalam komposisi C rpm 5000, dan tingkat pengurangan emisi HC adalah 83,14% dalam komposisi C rpm 5000. Dengan menggunakan catalytic converter dengan variasi dimensi 2 cm menghasilkan tenaga 11,44 hp dan torsi 10,12 Nm dan untuk konverter katalitik dengan Dimensi 3 cm menghasilkan daya 11,30 hp dan torsi 10,01 Nm. The purposeTof this study was to determine the use of ceramic-shaped catalyst additions to the exhaust channel of the Satria F 150 motorized vehicle. This study used the experimental method. The data in this research were CO2 gas, CO , HC. This research was carried out in the banjarmasin environment office using a gas analyzer and was also carried out in the Banjarmasin Banjarmasin plug and play workshop by using a dynamometer. The technique used in data collection was variations in rpm, mixtures and dimensions. The results of this study are: forming a catalytic converter with variations in dimensions of 2 cm and 3 cm, the maximum CO2 emission reduction level is 21.91% in the composition of C rpm 5000, the level of CO emission reduction is 61.71% in composition C rpm 5000, and the level of HC emission reduction is 83.14% in the composition of C rpm 5000. By using a catalytic converter with variations in dimensions of 2 cm produces power of 11.44 hp and torque of 10.12 Nm and for catalytic converters with Dimensions of 3 cm produce power of 11.30 hp and torque of 10.01 Nm.
PEMBUATAN BIOETANOL BERBAHAN BAKU AMPAS TEBU DAN KULIT PISANG DENGAN VARIASI MASSA RAGI
Authors: Anwar Fahron , Subagyo Rachmat 
Published: September 2020

Penelitian ini bertujuan untuk menentukan kadar bioetanol terbaik dari kombinasi campuran ampas tebu dan pisang dengan variasi massa ragi 4 gram, 6 gram dan 8 gram dengan waktu fermentasi 60 jam, untuk menentukan massa ragi yang optimal dan untuk menentukan kadar etanol sesuai untuk SNI. Penelitian ini dilakukan dengan cara hidrolisis atau pendidihan ampas tebu dan kulit pisang untuk memecah molekul menjadi dua bagian dengan air suling, kemudian proses fermentasi dilakukan menggunakan Saccharomyces Cerevisae (ragi) sesuai variasi yang ditentukan dan proses penyulingan dilakukan menggunakan destilator untuk mendapatkan etanol dari fermentasi kemudian diuji dengan Refractometer Pen untuk mengetahui apakah ada etanol yang terbentuk dari proses distilasi. Sampel terbaik yang dipilih kemudian diuji kandungan etanol menggunakan alat Gas Chromatography. Jadi hasil etanol terbaik yang dapat dikategorikan sebagai pencapaian dalam SNI adalah kombinasi dari 75% ampas tebu - 25% kulit pisang dengan penambahan 8 gram ragi dan etanol yang diproduksi sebesar 96,64%. This study aims to determine the best bioethanol levels from a combination of bagasse and banana peel mixtures with variations in yeast mass of 4 grams, 6 grams and 8 grams with a fermentation time of 60 hours, to determine the optimum yeast mass and to determine ethanol levels according to SNI. This research was carried out by hydrolysis or boiling of bagasse and banana peel to break down molecules into two parts with distilled water, then the fermentation process was carried out using Saccharomyces Cerevisae (yeast) according to the specified variation and the distillation process was carried out using a destilator to get ethanol from fermentation then tested with a Refractometer Pen to find out if there is ethanol formed from the distillation process. The best sample selected then tested the ethanol content using the Gas Chromatography tool. So the best ethanol yield that can be categorized as achievement in SNI is a combination of 75% bagasse - 25% banana peel with the addition of 8 grams of yeast and ethanol produced at 96.64%.
Solving the Gummy Bears Mystery May Unlock Greater Shale Production
Authors: Rassenfoss Stephen 
Published: September 2020

Gummy bears is one of the names for a gross mix of downhole junk that can foul a separator or clog tubing in the Woodford play in Oklahoma.
The texture is often rubbery - the only connection to the gummy candy - and the color varies depending on whether the well’s output tilts toward oil or gas.
These “unusual semi-solid” accumulations were described in a 2015 Halliburton paper as containing hydrocarbons, sand, iron, fine particles from clay, and sometimes a bit of friction reducer - polyacrylamide to be exact (SPE 173594).
The globs generally are seen at the surface after fracturing. When they are observed downhole, they have been pushed by the well’s flow into “choke points” such as “perforations, tubing anchors, gas lift valves” downhole which are noticed when production declines, the paper said.
Analysis revealed that those semi-solid amalgams contained iron, which was not in the injected fracturing fluid. While the nature of the stuff made poly-acrylamide a likely ingredient, they did not find acrylamide - the ingredient combined with polymers to make friction reducer.
The paper suggested that fracturing “released materials with a strong positive charge (cations)” which were part of “a complex mixture including other solids and the acrylamide, forming a tight emulsion in semi-solid form.”
The paper offered a workable description of what was going on below. But the analysis and solutions offered did not seem to make a dent in the problems that were so bad for some operators in the Woodford that they switched from friction reducer to guar to avoid the gunk.
Guar, a natural product is not as effective as polyacrylamide at reducing friction. While it has long been used to thicken water-based fluids and allow them to deliver more proppant, laboratory testing concluded guar can hinder production.
Substituting guar “is not ideal because the residue guar can [be left] behind on a proppant pack,” said Mark Van Domelen, vice president for technology at Downhole Chemical Solutions (DCS).
The maker and supplier of fracture chemicals has been working with Ovintiv on a way to pump friction reducer without the gummy side effects. Ovintiv, formerly known as Encana, saw improved chemistry as a way to increase production from the Oklahoma acreage it acquired from Newfield Exploration.
The research partners tested the widely held theory that the gunk was created by a reaction between polyacrylamide and pyrite (iron sulfide or FeS2) in fresh water and found, “When an iron source is added to the fluid a nearly instantaneous development of the accumulation material was noted,” according to their paper (URTeC 2487).
A Determined Operator
The partners identified the source of the obvious problem - the gummy bears - and some less obvious ones that could undercut the effectiveness of chemicals used for fracturing.
One of those is the widely used practice of injecting acid on a site before it is stimulated, which is known as an acid spearhead.