bluuebunny/crossref_metadata_2025_split huggingface dataset:
Determination of lower sucker-rod breakage in wells equipped with sucker-rod pumps
Authors: Galeev A S , Bikbulatova G I , Boltneva Y A , Sabanov S L 
Published: July 2020

Abstract
Development of mature oilfields of the Ural-Volga region is performed primarily by means of downhole sucker-rod pumping units (UShSN). The most characteristic failures of these installations are breakdowns and twist-offs and pump valve failures [1-5]. The ways of the elimination of these accidents vary significantly: rod breakage or twist-off implies pulling out of downhole equipment, and elimination of “sticking” of the pump’s shut-off valve assembly requires rehabilitation of downhole equipment through flushing with water, hot petroleum or a solvent. Failure to identify a malfunction leads to incorrect planning of wellbore equipment rehabilitation activities and, eventually, to economic losses.The cause of downhole equipment malfunctions is usually determined through analysis of dynamometer cards (DC). However, in the majority of cases, the dynamometer cards do not allow to distinguish the rods’ tail end twist-off from the rod pump valve failure. In the paper presented the method is considered for rapid detection of rod breakage and twist-offs (RBT) in the wellbore, which involves creation of an electrical circuit “rod string - tubing string” and monitoring of its integrity. To determine the failure type, the synchronization module measures the system’s resistance on the dielectric coupling via an electromagnetic conduit. In case of RBT, the electrical resistance of “tubing - pump - rod string” circuit will be much higher (over 2 Ohm) than in case of absence of this failure (0…2 Ohm).
Application of unlimited and limited anisotropic core compression results for wellbore stability calculations
Authors: Aliev M M , Shafieva S V , Karimova N G , Gilyazova S R 
Published: July 2020

Abstract
The study touches upon the issue of wellbore stability in wells drilled in anisotropic rocks. Initial data for solving this task is the results of anisotropic core samples testing for unlimited and limited compression taken from one section of the whole core and drilled in different directions. These data are taken from the works of foreign authors that are collected and presented in [1]. The problem of wellbore stability drilled in multi-layer highly anisotropic rocks is solved by applying a strength criterion that includes stress tensor components and the angle between the normal line to the slip area and the direction of lamination. Given that the values of the elastic modulus and Poisson’s ratio for the anisotropic rocks under consideration in the main directions of anisotropy differ insignificantly, the stress distribution around the wellbore is accepted without taking into account the anisotropy of the elastic properties. It is believed that strength anisotropy is the cause of rock destruction. Thus, the components of the stress tensor are determined using the superposition method by summing the solutions of the classical Kirsch and Lame problems.
Wear evaluation methods for friction units of aircraft GTE oil systems: the on-line methods
Authors: Hodunaev A Y 
Published: July 2020

Abstract
On-line sensors based on optical, ultrasonic, electostatic and inductive principles are evaluated for use in determination of wear in oil systems of aircraft GTEs. This application is limited due to contraints of the high oil flow rate (40-60 L/min) and the flow diameter of 20-25 mm. Under such conditions, most sensors are unable to function efficiently and give incorrect readings. As such, creating on-line wear evaluation systems remains hardware-limited. Decrease of detection limit of non-ferrious particles for inductive type sensors is a possible way to solve the issue.
Cyber Security System With SIEM And Honeypot In Higher Education
Authors: Suroso Jarot S. , Prastya Caesario Putra 
Published: July 2020

Abstract
Communication science and information technology (ICT) has been progressing and contain complex implication for individual, groups and inter-country relationship. Along with ICT evolution, threats (including theft of information) increase and electronic systems are adopted. As a government agency in higher education with the country’s strategic data, XYZ cannot escape hackers trying to access the assets. Strategic assets include system and company’s data as well as systems and data which might be taken for granted by irresponsible parties. Therefore, it is necessary to secure information and data systems in XYZ. Moreover to test whether the implemented cyber security system can optimally standardize the company’s information and data systems. The application of Security Information Event Management (SIEM) to cyber security systems to detect incoming threat alerts and block access to suspicious threats. While the honeypot is used to deceive the hacker into a fake system intentionally attacked and learning the tricks that intruders use when performing the action. The results of the test of the application of SIEM and Honeypot at XYZ can monitor the monitoring of information system and data-related threats in real-time, and deter and transmit cyber-attacks to adequately protect information security so that the use of cyber security systems with SIEM & Honeypot can secure the information and data systems owned by XYZ optimal.
Design of Information System to Detect Antenatal Depression
Authors: Yuliasari Alfiyana , Prabawa Artha 
Published: July 2020

Abstract
Depression is a major cause of disease burden worldwide in women of childbearing age and 5-10% of all pregnant women experience antenatal depression. depression in pregnancy is associated with the incidence of stillbirth, premature, low birth weight, asphyxia, and congenital abnormalities in newborns. Although antenatal depression has a very detrimental effect, anxiety and depression during pregnancy are still less detected so that the treatment has not been maximized. The aim of this study is to develop model of antenatal depression detection system. This research will design an information system on detection of antenatal depression based on Android mobile using prototyping method. The needs analysis of this information systems is carried out by interviews, observations, and literature studies aimed at producing an effective and efficient system. Antenatal depression detection test uses the Edinburgh Postnatal Depression Scale (EPDS) questionnaire consisting of 10 questions. The results of this study is the form of antenatal depression detection information system design in android and web based.
Design and Development of Parking Motor Parking Information System at Muhammadiyah University, Sidoarjo
Authors: Wisaksono Arief , Ragil Catur Aswar 
Published: July 2020

Abstract
The problem that often occurs in high-rise motorbike parking lots is the lack of information on the availability of motorbike parking lots. Currently at Muhammadiyah University in Sidoarjo there is no information system in the motorbike parking lot so users are often forced to surround parking lots to find empty parking lots, in the face of problems this requires a good information system so that motorbike parking users can find out information on the availability of parking spaces. Through this research entitled the design of a motorbike parking information system in a multi-storey building, it is expected to make it easier for users to park at Muhammadiyah University in finding a parking space. This research is done by making a design simulation by utilizing Arduino module components, Ethernet shield modules & infrared obstacle sensors, the working principle of the system is the infrared obstacle sensor installed at the entrance and exit on each floor whose function is to provide data to the Arduino then Arduino processes the sensor by sending data to the database, the database is used to store data and sensor values in the database that will be displayed in the Web browser which will be displayed on the monitor installed on the ground floor to notify the driver of the empty parking slot so as to produce efficiency BBM and time efficiency.
Improving Text Preprocessing For Student Complaint Document Classification Using Sastrawi
Authors: Rosid Mochamad Alfan , Fitrani Arif Senja , Astutik Ika Ratna Indra , Mulloh Nasrudin Iqrok , Gozali Haris Ahmad 
Published: July 2020

Abstract
In the text mining there are stages that must be passed namely the text preprocessing stage. Text preprocessing is the stage to do the data selection process in each document, including case folding, tokenizing, filtering, and stemming. The results of the preprocessing process can affect the accuracy of document classification. In documents Bahasa Indonesia, there are still often over-stemming and under-stemming, so improvements are needed in the stemming process. In this study, it is proposed to use sastrawi libraries to improve the results of previous studies that are still not optimal in the results of preprocessing, especially in the filtering and stemming process. From the results of the study, the sastrawi library is able to reduce over stemming and under stemming and a faster processing time compared to using a Tala stemmer.
Augmented reality using Natural Feature Tracking (NFT) method for learning media of makharijul huruf
Authors: Ulfah Syita , Ramdania Diena Rauda , Fatoni Uwes , Mukhtar Khoiruddin , Tajiri Hajir , Sarbini Ahmad 
Published: July 2020

Abstract

Makharijul huruf is the place of the letter hijaiyah (Arabic letters) from alif to ya. If someone mistakes in reciting a letter on al-Qur’an then the meaning of the word or sentence may be different from the meaning of the original word. Few learning media that provides information about makharijul huruf such as school academic books, books of tajwid al-Qur’an, etc. However, to make terms of visual and audio clearer we can use augmented reality technology as a learning media. Augmented reality for makharijul huruf requires a marker of hijaiyah in printing form. Tracking marker in this research using Natural Feature Tracking (NFT) method. In the application of learning this makharijul huruf will produce a 3D object visualization of the oral organs and audio sounds hijaiyah letters and explanations about makharijul huruf. The results of black box testing and beta testing states that this application can be accepted by users by obtaining a percentage of 91%. It can be concluded that applications built functionally have produced results as expected.
IoT Business Model Development for Food Safety Monitoring System in the Poultry Slaughterhouse
Authors: Fadillah Achmad , Indrawan Dikky 
Published: July 2020

AbstractInternet of Things (IoT) has changed the industrial direction and open a new opportunity for the food business. The food safety business took this technological leap to increase food safety in the industry. The technological leap focuses on the improvement of traceability system in order to guarantee the appropriate level of protection for biological and chemical hazards in the poultry slaughtering. Consumers’ concerns about food safety are the key to new technological businesses by using the internet platform and reengineer the computer system. The different business model for IoT provides a system building for new ventures. This paper aims to describe a new business based on a new internet technology development. An internet-based business on food safety notification for the slaughterhouse with regards to food safety hazards is the main business backbone. The system development will be based on a sensor and link with the android system that integrated conveyor system to detect the possible biological and chemical hazards. The future new business model of IoT system is integrated with HACCP sensors.
The Effect Of The Ratio Of The Hub Diameter (d) To The Diameter Of The Screw (D) To The Performance Of The Archimides Screw
Authors: Helmizar  , Nuramal Agus , Daratha Novalio , Setiawan Arif 
Published: July 2020

Abstract
The potency of the ultra-low head hydro resource is quite huge in the world. In Indonesia, only 1.8% of the Pico hydro potency with head of less than 5m is utilized as electric resource [1]. Archimedes screw is one of the promising technology that could be used to extract this low head hydro resource. One prominent factor which is affecting the performance of the Archimedes turbine screw is the ratio of the hub diameter (d) to the diameter of the screw (D). In this paper, the ratio d/D were varied as 0.22, 0.29, 0.33, 0.42. In addition, flow rate (Q), were varied as well as 1.8 l/s, 1.4 l/s, 1.0 l/s. The blade configuration that used in this test is a single blade. The result shows that the highest efficiency is achieved with the diameter ratio of d/D = 0.42 with the eficiency off 40.23%.
Tracking a voyager: mitochondrial DNA analyses reveal mainland-to-island dispersal of an American crocodile (Crocodylus acutus) across the Caribbean
Authors: Balaguera-Reina Sergio A , Moncada-Jimenez Juan F , Prada-Quiroga Carlos F , Hernandez-Gonzalez Felipe , Bolaños-Cubillos Nacor W , Farfán-Ardila Nidia , Garcia-Calderón Lina M , Densmore Llewellyn D 
Published: July 2020

AbstractConservation efforts have allowed American crocodile (Crocodylus acutus) populations to recover to the point that dispersal movements are beginning to be documented. The environmental authority of San Andres Island in Colombia reported, for the first time, the arrival of two C. acutus from unknown localities in 2012 and 2018. The former was sacrificed, and the latter was captured and kept in captivity to determining its potential origin. We used wildlife forensics to establish the origin of the animal that arrived in 2018 based on two mitochondrial genes (COI and Cytb). Additionally, five other samples from Tayrona National Natural Park (TNNP), and Salamanca Island Road Park (SIRP) were sequenced for molecular attribution of these populations to the currently described lineages. Phylogenetic and phylogeographic analyses showed that the American crocodile found in San Andrés belongs to a continental evolutionary lineage endemic to Colombia, showing also a strong genetic similarity with animals from SIRP. Thus, the most likely origin for this individual was not the nearest continental area but somewhere around the central Colombian Caribbean, located ~700 km from the island. We discuss the implication of our findings in the systematics and conservation of the species and the potential of mitochondrial DNA analysis to identify such migrants.
Community organizing in anti-corruption initiatives through spontaneous participation: Bangladesh perspective
Authors: Sakib Nurul Huda 
Published: July 2020

Abstract
In the past few years, community organizing has been initiated by different government and non-government organizations in corruption prevention through creating social awareness and motivation. The question arises: Can community-based organizations or community organizing empower people to raise their voice to prevent corruption? Based on empirical evidence, this research argues that engaging the community in anti-corruption initiatives can be an effective way to avert corruption and empower people’s voice. The finding shows that anti-corruption initiatives through spontaneous individual and collective involvement at the local level have an impact on creating accountability and transparency. Despite several challenges, these group and individual efforts have had significant results in promoting anti-corruption efforts in Bangladesh. Effective anti-corruption initiatives in engaging the community need ‘spontaneous’ participation by individuals or groups. As such, the government should give primacy of these individuals and groups and use them to create more formalized corruption watchdog bodies at the sub-regional level and make it a stronger National Integrity Systems foundation.
Moronga, by Horacio Castellanos Moya, and the Divergence of Latin American Noir
Authors: Luna Sellés Carmen 
Published: July 2020

Abstract
Taking Moronga (2018), by Salvadorian author Horacio Castellanos Moya, as a point of departure, this article focuses on the reinterpretation of mainstream crime fiction in Latin American terms. This new approach is made from both formal and thematic perspectives. Moronga is structurally fragmented; the traditional detective figure has disappeared, and the plot does not revolve around a single crime but denounces a society at large which is characterized by paranoid surveillance. The reinterpretation of the crime fiction genre in Latin American terms has opened up two different strands of noir: firstly, the so-called ‘post-neopolicial’ where crime is a mere backdrop to formal experimentation, and secondly, what Ricardo Piglia refers to as ‘ficción paranoica’ [paranoiac fiction]. Moronga is a good example of both these strands, making it an appropriate case study to analyse the ways in which Hispanic literature deviates from classic Anglophone crime fiction (particularly the North American hardboiled tradition).
Advance Directives State Requirements, Center Practices, and Participant Prevalence in Adult Day Services Centers: Findings From the 2016 National Study of Long-Term Care Providers
Authors: Lendon Jessica Penn , Caffrey Christine , Lau Denys T 
Published: July 2020

Abstract

Objectives
Adult day services centers (ADSCs) may serve as an entrée to advance care planning. This study examined state requirements for ADSCs to provide advance directives (ADs) information to ADSC participants, ADSCs’ awareness of requirements, ADSCs’ practice of providing AD information, and their associations with the percentage of participants with ADs.

Methods
Using the 2016 National Study of Long-Term Care Providers, analyses included 3,305 ADSCs that documented ADs in participants’ files. Bivariate and linear regression analyses were conducted.

Results
Nine states had a requirement to provide AD information. About 80.8% of ADSCs provided AD information and 41.3% of participants had documented ADs. There were significant associations between state requirements, awareness, and providing information with AD prevalence. State requirement was mediated by awareness.

Discussion
This study found many ADSCs provided AD information, and ADSCs that thought their state had a requirement and provided information was associated with AD prevalence, regardless of state requirements.
Effects of intermittent starvation on the survival, growth, and nutritional status of the freshwater prawn Macrobrachium borellii Nobili, 1896 (Decapoda: Caridea: Palaemonidae)
Authors: Stumpf Liane , Timpanaro Santiago , Battista Ariadna , López Greco Laura 
Published: July 2020

AbstractWe examined the effect of the double restriction-recovery cycle on survival, growth, and nutritional status of the freshwater prawn Macrobrachium borellii (Nobili, 1896), native to floodplain rivers of Argentina. The restriction period consisted of intermittent starvation (alternating four-day feeding with no feeding for four days) and a recovery period of continuous feeding following the restriction period. Survival was high over a 20-week trial with cycles of food scarcity. Prawns showed a slight impact on their growth throughout the entire first cycle of restriction-recovery; however, compensatory growth was not triggered. The reduction of growth was markedly more drastic after the second restriction period, but compensatory growth was not exhibited when the second recovery period was reestablished. Any possible impact of the double cycle of intermittent starvation on energy reserves and structure of the hepatopancreas was compensated by a posterior cycle of continuous feeding. The results demonstrated that M. borelli can successfully support long-term food scarcity throughout the juvenile and adult phases, at least intermittently and followed by a recovery period. The high nutritional flexibility is an adaptation to fluctuations in food availability and an advantage for successful ornamental aquaculture.
China’s Non-Recognition of Foreign Same-Sex Unions
Authors: Liu Yin 
Published: July 2020

Abstract
Chinese law neither expressly recognises nor prohibits same-sex unions (‘same-sex unions’ in this article refers to homosexual relationships that are legally recognised and protected by law, including marriage, civil union, (un)registered partnership, and so on). Until now, no dispute over foreign same-sex union has been brought in a Chinese court. However, the Department of Consular Affairs of China’s Ministry of Foreign Affairs has adopted a blanket non-recognition rule, alleging that same-sex unions would violate China’s (‘China’ hereinafter refers to the jurisdiction of Mainland China, excluding those of the Hong Kong SAR, the Macao SAR, and Taiwan) family law and the public interest. However, it is argued that foreign same-sex unions should be recognised unless such recognition would violate the public policy of the forum state. First, foreign same-sex unions should be regulated by the Chinese conflict rules, not by Chinese domestic law. Additionally, China is internationally obliged to recognise and protect fundamental human rights (right to marry). Secondly, under China’s conflict rules, a foreign same-sex union should be governed by the lex personalis or the law that has the closest connection with that union. Thirdly, as more than 40 jurisdictions throughout the world have legally recognised same-sex unions, and China itself has decriminalised homosexuality, same-sex unions would not necessarily be incompatible with China’s public policy. Fourthly, non-recognition of same-sex unions would instead cause public policy problems because it practically always favours one party over another, helping foreign same-sex couples to evade their responsibilities imposed by the relevant foreign law.
ANCA vasculitis and IgA nephropathy linked to silica exposure
Authors: Rao N , Bendall A , Lanteri M 
Published: July 2020

Summary
There is a recognized association between silica exposure and Antineutrophil cytoplasmic antibodies (ANCA)-associated vasculitis (AAV); however, no clear association between silica exposure and Immunoglobulin A (IgA) nephropathy. We describe the case of a 26-year-old male stonemason who presents with hilar lymphadenopathy, haematuria and acute kidney injury related to silica exposure, AAV and IgA nephropathy. He was asymptomatic on presentation; urinalysis revealed glomerular haematuria (&gt;1000 red blood cells/L) and proteinuria (protein-to-creatinine ratio 84 mg/mmol). ANCA anti-myeloperoxidase serology was strongly positive. Mediastinal lymph node biopsy revealed multiple necrotizing granulomas with silica inclusions, and renal biopsy demonstrated crescentic glomerulonephritis and mesangial IgA staining. The patient was treated with cyclophosphamide and high-dose prednisolone with subsequent improvement in renal function. To our knowledge, this is the first report of both ANCA vasculitis and IgA nephropathy in the setting of silica exposure. This case highlights the relevance of occupational exposures in renal disease, and the immune-stimulatory effect of silica.