bluuebunny/crossref_metadata_2025 huggingface dataset:
HDPE Lining as Enabler for Cost Effective Replacement of Corroded Offshore Water Injection Network?
Authors: Delaplace Thomas , Gouriou Morgan , Bovo Nicolo
Published: April 2022

HDPE lining has been used offshore for reeled water injection lines since decades, especially in the North Sea. It has been proven to be a cost-effective alternative solution to CRA materials when corrosion allowance is not an option. There have also been several developments in the last years to unlock the use of HDPE lining for other pipelay methods, using HDPE sleeves for the field joints. This paper presents investigations performed on the use of HDPE lining for a study case of a corroded water injection network replacement in a shallow water environment.

A case study has been built based on a typical shallow water architecture including several platforms, connected to a shared water injection network. It is composed of a large water pipeline on which each platform is connected through a static riser, some spools, including goosenecks, a small water line and a shutdown valve. Design, system architecture and manufacturing of such pipe network to be prefabricated onshore were investigated to assess technical feasibility and costs of HDPE lining as an alternative to CRA (Corrosion Resistant Alloys).

It is technically feasible to have HDPE lined static risers and spools which include short radius bends and goosenecks with basically any shape. Additional lined flanges (when compared to a usual steel or CRA lined assembly) have to be added to allow for the connection between straight and bended sections of the tie-in connections. Any spool or riser shape can be prefabricated, assembled and tested onshore prior to be installed offshore as a classical static riser or spool. The use of the FBJ (Fusion Bonded Joint) technology developed by Saipem was considered to try to further reduce the costs of such design and to reduce the quantity of lined flanges. Even with the additional lined flanges required for the HDPE lined riser/spool assembly, there is significant room for cost savings since expensive CRA lining materials will not be used.

While the usual investigations/developments with HDPE lining usually focuses on water pipelines, this study focused on the rigid pipe connections such as static risers and spools, to be prefabricated onshore and presents a technical solution to use HDPE lining for such applications. This could typically be used for corroded water injection network replacement as an alternative to expensive CRA materials and would allow to consider full network with HDPE lining as an option.
Unattended Floating Production Unit FPU and Attended Floating Storage Offloading FSO
Authors: Rossi Thierry , Munoz Jean-Michel , Mateen Khalid
Published: April 2022

The objective is to present a normally unattended Floating Production Unit (FPU) and an attended Floating Storage Offloading vessel (FSO) concept as an alternative to an unattended FPSO. The unattended FPU operating philosophy is for one year with a two-week maintenance campaign.

The study considers a greenfield developed unattended FPU with a rented attended FSO. The focus is the FPU and what is different compared to current design principals for a FPSO. To ensure a lean design, TotalEnergies encouraged to use a Justify-in based approach, starting with the simplest design and then justifying required functions and systems. The FPU has fewer systems but the ones onboard needs to meet requirements of the core process, be robust, simple, reliable and easy to maintain. The focus is on simplification, reliability and efficiency, allowing the use of robotics as supporting tools.

Study focus has been on topsides layout, grouping critical equipment into retrievable Plug and play modules on a one-deck solution constituting a series of individual pancakes, robots friendly design for inspection, operation and maintenance support and, material handling and intervention. Key differences for the unattended FPU concept vs a typical conventional attended FPSO have been identified. Equipment dry weight for different systems for the unattended FPU vs an attended FPSO has been assessed. There is considerable reduction in weight for the unattended FPU, driven by simplifications or elimination of functions. Topside dry weight has been assessed −50% lower than an attended FPSO, based on equipment weight and on ratio of structural weight since the unattended FPU layout is designed on a one-deck solution. CAPEX and OPEX of the unattended FPU and attended FSO have been assessed respectively −33% lower and −64% lower than an attended FPSO. Environmental footprint is reduced primarily as a consequence of having a power from shore delivered with green energy and because of reduced transportation and logistics.

The novelty is to propose an environmentally friendly and economical concept driven by simplicity, reliability and efficient maintenance. The application of NUF (Normally Unattended Facilities) principles to simple facilities has become an established practice in the industry. TolalEnergies recognizes an opportunity to expand such principles into more complex and larger facilities. The challenge is the willingness to implement new ways of working, update regulatory requirement and be target focused rather than process/regulatory focused.
Holistic Approach to Mitigating Well Integrity Risk in Deepwater Surface Casing Strings in All Phases of Execution
Authors: Angelle Jeremy R. , Thibodeaux Robert L. , Norman Roger A. , Fadaol Seth J. , Snell Taylor D. , Smith Logan E.
Published: April 2022

As well construction progressed into increasingly deeper water depths targeting deeper reservoirs, surface casing strings became exposed to additonal risks during various phases of execution and well design requirements. Beginning with handling and installation, they are subjected to handling and environmental loads from various metocean conditions. Once set in place, they see increased exposure to higher well and structural loads while being subjected to deeper hole sections before additional casing strings are set in place.

Deepwater casing strings are installed prior to the drilling riser being installed, which creates additional exposure to loads and risks not seen by other casing strings as well as loads induced by the well. To ensure the casing string is fit for duty, a "cradle to grave" approach is utilized to identify and classify the risks created by loads induced on the casing string. Each risk is analyzed and mitigated with a technological solution or best practice to ensure the design parameters of the well are achieved.

Introducing advanced mechanized tubular running technologies resulted in up to 20% reduction in exposure of the surface casing string to dangerous seastates and ocean currents and a 41% reduction in red zone entries. Exposure of the surface casing string to environmental loads was further reduced by 7% with the use of an innovative hands-free anti-rotation key, which requires no installation on the rig floor during tubular handling operations and lowers red zone entries beyond current mechanized handling solutions.

Once set in place, surface casing strings are subjected to a higher classification of well service as structural and well loads increase in severity. To address this, a new weld-on connector qualified to connection assessment level I+ for gas tight service with elevated temperature per API RP 5C5 / ISO 13679 was installed, allowing deeper wells in deeper waters to be achieved.

It is sometimes necessary to temporarily protect the well with deeper hole sections exposed to the surface casing string. Additional challenges to effectively seal the well are present when the string contains internal weld seams and inside diameter restrictions such as the high-pressure wellhead housing and supplemental casing adapters. To overcome these challenges, a unique retrievable packer system was developed and validated to API 11D1 and ISO 14310, allowing well protection from the surface casing string and below.
A Standardized Qualification Approach for Subsea All-Electric Drop-in-Place Actuators
Authors: Mahler Carsten , Schuhmacher Harald , Thiele Birthe , Pocher Johannes Reiner
Published: April 2022

Electric actuation technology represents the future of subsea production systems. So far there are no standardized generic requirements documented for electrical actuators. A recent Joint Operator Specification attempted to address this lack of information, but it provided only a few details about how electric actuators could meet subsea industry requirements.

Recently, there has been a visible increase in the use of electric actuators, especially on less safety-critical valves. Considering the UN sustainability goals, companies will likely implement more all-electric technologies to reduce the CO2 footprint of the upstream sector in the near future. Hence, large suppliers and smaller companies see their chance to establish corresponding products in the marketplace.

This paper proposes the development of a documented qualification program for subsea all-electric actuators based on a foundation of existing industry standards. To clarify and enhance those standards, comprehensive research was conducted and requirements were derived and documented based on customer specifications as well as engineering and project organization experience.

The proposed program outlines specifications and documents a wealth of information based on project organization and engineering experience. This comprehensive list of requirements will serve as the basis for a generic comparison and qualification program, which has already been carried out for various drop-in-place actuators and has, so far, led to smooth acceptance of the technology by the operators, wherever it has been implemented.

This paper will serve as a further step in advancing an all-electric approach for the industry. The methods outlined herein will help operators compare different products on a uniform basis and will give suppliers the opportunity to compete fairly. To this end, the paper presents the above-mentioned approach for obtaining the requirements and identifies the main sources as well as the procedure for developing a generic qualification approach.
Innovative Subsea Electrical Field Architecture and Technology Solutions for Longer Tiebacks and Offshore Energy Management
Authors: Manach Julien , Verdeil Julien , Bouzard Vincent , Serrentino Ana , Sommer Burkhard , Fløisand John Olav
Published: April 2022

The paper discusses integrated all-electric solutions (iAES) that offer significant optimisation of field architecture and enhanced viability of both greenfield and brownfield developments. The discussion will be on field optimisations related to power and subsea chemical distribution to fully enhance the subsea electric field of the future.

Conventional subsea field developments rely on electrohydraulic architectures to distribute chemicals, power, control, and communications from the host to the drill centres. The multiplication of tiebacks and their distance to a single host, as well as the increasing depths of subsea development, provide opportunities for a change in the technologies used subsea today, to improve the overall project economics. Yet the pace of change in technologies and field architectures remains slow.

Over the last two decades, major improvements have been made in the development and qualification of subsea electrical equipment. The track record of the equipment installed on the seabed is now significant, although all-electric architecture has not become the new standard yet. The main advantages of an iAES lie in the simplification of subsea architecture and the reduction in the number of components. This lighter design allows a reduction of capital expenditures (CAPEX) and operational expenditures (OPEX), as well as shorter project delivery times and installation campaigns. The energy efficiency is also greatly improved, leading to a reduction in greenhouse gas emissions. The iAES is an enabler toward the energy transition, facilitating the integration of renewable sources into power subsea equipment.

This paper will introduce the iAES and show how it offers significantly optimised field architecture and enhances viability of both greenfield and brownfield projects. It will provide the all-electric technology building blocks for subsea structures and will also explain how to optimise power in the field and in subsea chemical distribution to fully enhance the subsea electric field of the future. And it will include an outline of integrated control concepts for subsea production systems, boosting systems, and the subsea chemical storage and injection skids.
Practical Application of Sustainability Criteria to Floating Production, Storage and Offloading Systems - Today and Tomorrow
Authors: Grove Todd , Stamopoulos Stergios
Published: April 2022

With the offshore industry's growing focus on sustainable design, construction, operation, and recycling there is a need for independent third-party monitoring and certification to a recognized and relevant standard. Initial Classification Society criteria have been developed and presented in a published Guide [1], to specifically address the sustainability related aspects of floating production systems. The requirements have been developed to allow practical alignment with U.N. Sustainable Development Goals [2], and related, evolving, goal-based standards to the offshore environment. This includes aspects related to energy efficiency management, mitigation of ozone depleting substances, and management of hazardous materials throughout the life cycle as related to floating production systems.

In assessing the practical relevance of the developed Guide, these foundational criteria have been applied to a new construction FPSO project. Elements of the design, documentation, and operational procedures were developed by the designer / operator for compliance with the baseline criteria. Adherence to the criteria also lays the groundwork for efficient planning for the ultimate end-of-life planning and execution of recycling of assets. Although this project has been successful in addressing the practical application of criteria to an FPSO project, it is recognized that this initial application was primarily focused on the physical arrangements and systems. The experience gained has helped frame the essential next steps now being implemented for extension of the sustainability criteria to guide development of operational procedures addressing emissions from the production facilities, including flaring, as well as effluents to the sea. Further development to company level management and holistic field level application is being contemplated.
Validation of Full Transient Hole Cleaning Model, with At-Scale Datasets, Implementation into an Automated Advisory System
Authors: Forshaw Matthew J. , Qahtani Yazeed S. , Starostin Alexander Borisovitch , Aragall Roger , May Roland , Dahl Thomas
Published: April 2022

Transport of drilled cuttings, from bit to outlet at surface, is one of the most fundamental processes underpinning well construction, and yet the industry is long overdue proliferation of fit-for-purpose models in this area. Currently, the majority of operations globally use steady-state models based on empirical correlations or mechanistic models to determine acceptable operational parameters. Annually, NPT and ILT associated with inadequate hole cleaning costs the industry millions, which furthermore reinforces the urgent need for comprehensive transient hole cleaning models to become more widely utilized. Lack of deployment of transient models in real-time is not due to lack of understanding of the physical process, the barriers have been accuracy and robustness of developed algorithms, as well as computational processing power constraints which have made real-time deployments challenging.

This paper details the features of a transient hole cleaning model capable of accurately solving the temporal and spatial course of both pressure and cuttings concentration along the wellbore. Specifically, for the latter, a drift-flux-model is employed, populated with coefficients from high resolution 2D and 3D CFD simulations.

For primary validation of the model, output of cuttings mass exiting the wellbore is compared against measured mass from drilled cuttings waste (skips). Secondary validation is through comparison of simulated stand-pipe pressure, including the effect of modelled spatial distribution of both static beds and concentrations, with the measured pressure on surface. Results show a good fit between model outputs and measured data successfully validating the model. A sensitivity analysis is detailed demonstrating the relative importance of various input variables including cuttings size, drilled lithology density and signal source for ROP.

Finally, integration of the transient hole model into an advisory software-service is described, highlighting the importance of UX to concisely and intuitively convey simulation data to end-users, ultimately facilitating de-risking of well construction operations.
Integrated Acoustic Unit I.A.U.: A Novel Technology for Continuous Piggability Detection During Pipeline Laying Operation
Authors: Arcangeletti Giorgio , Smareglia Alessandro , Busco Mariella , Catena Paolo , Esposito Andrea , Monacchi Giulio , Pierozzi Natalia
Published: April 2022

In the offshore oil and gas industry the pipeline integrity during the whole life cycle is an aspect of paramount importance. During Installation phase pipeline structural integrity can be compromised by fabrications defects and by the action of external forces in case of accidental events, that could generate pipe instability and, in the worst-case scenario, thepipe collapse.

Current offshore regulations provide the requirements to be respected during pipelaying operations in terms of Buckle Detection to meet the pipeline Piggability requirements. The debate on the use of a Mechanical Buckle Detector (MDB), i.e., a gauge plate trolley pulled through the pipeline by a wire connected to the vessel and placed at a certain distance behind the touchdown point, is still open. Indeed, Buckle Detection by deploying the MBD may introducesome operational risks, i.e., the cable break, the stacking during motion and the damage of the internal coating. This may lead toadditional vessel time, extra launch/recovery operations and false readings/bias. With the main target to overcome the above issues, Saipem has developed a tool based on acoustic technique to detect deformations of the internal sections of pipes during installation operations: the Integrated Acoustic Unit, IAU (Patented Technology, see Ref. [1]). The tool works by means of a non-intrusive technique andcan provide the continuous characterization of the whole pipe span up to the touchdown point in a single shot.

This paper gives an overview of recent developments of Saipem Integrated Acoustic Unit. It describes the working principle and the available IAU Functions, the pipe defects characterization campaign through modelling (FEA) and laboratory tests, the system validation activity through the experimental campaign, the third-party qualification and the new Saipem Procedure for Technology Qualification that was at the basis of the process.
COVID-19 frontline primary health care professionals’ perspectives on health system preparedness and response to the pandemic in the Mahalapye Health District, Botswana
Authors: Tshitenge Stephane T. , Nthitu Justus M.
Published: April 2022

Background: The World Health Organization issued interim guidelines on essential health system preparedness and response measures for the coronavirus disease 2019 (COVID-19) pandemic. The control of the pandemic requires healthcare system preparedness and response.Aim: This study aimed to evaluate frontline COVID-19 primary health care professionals’ (PHC-Ps) views on health system preparedness and response to the pandemic in the Mahalapye Health District (MHD).Setting: In March 2020, the Botswana Ministry of Health directed health districts to educate their health professionals about COVID-19. One hundred and seventy frontline PHC-Ps were trained in MHD; they evaluated the health system’s preparedness and response.Methods: This was a cross-sectional study that involved a self-administered questionnaire using the Integrated Disease Surveillance and Health System response guidelines.Results: The majority (72.5%) of participants felt unprepared to deal with the COVID-19 pandemic at their level. Most of the participants (70.7%) acknowledged that the health system response plan has been followed. About half of the participants attributed a low score regarding the health system’s preparedness (44.4%), its response (50.0%), and its overall performance (55.6%) to the COVID-19 pandemic. There was an association between participants’ age and work experience and their overall perceptions of preparedness and response (p = 0.009 and p = 0.005, respectively).Conclusion: More than half of the participants gave a low score to the MHD regarding the health system’s preparedness and response to the COVID-19 pandemic. Further studies are required to determine the causes of such attitudes and to be better prepared to respond effectively.
Coverage of diabetes complications screening in rural Eastern Cape, South Africa: A cross-sectional survey
Authors: Owolabi Eyitayo O. , Goon Daniel T. , Ajayi Anthony I. , Adeniyi Oladele V. , Chu Kathryn M.
Published: April 2022

Background: There is a paucity of data on the coverage of diabetes mellitus (DM) complications screening in primary healthcare facilities in South Africa (SA). This study assesses the extent of screening for DM complications among individuals with type 2 DM attending primary health facilities in rural Eastern Cape (EC), SA.Methods: The study adopted a descriptive, cross-sectional design and obtained data from 372 individuals with type 2 diabetes attending six selected primary healthcare centres (PHCs) in two EC districts. Demographic and clinical data were obtained through questionnaire-based interviews and reviews of medical records. We assessed the extent of screening for estimated glomerular filtration rate (eGFR), fasting lipogram, eye examination, foot examination and glycated hemoglobin (HbA1c) in the past year.Results: Participants mean age was 62 (standard deviation [s.d.] ± 11) years, and their mean duration of diagnosis was 9 (s.d. ± 8) years. In the past year, HbA1c result was available for 71 (19.1%) of the participants; 60 (16.1%) had eGFR results, while only 33 (8.9%) had documented lipid results. In total, 52 (14.0%) had carried out eye examinations, while only 9 (2.3%) had undergone foot examinations in the past year. About two-thirds of the participants (59.9%) had not undergone any form of complication screening in the past year, and none had undergone the complete screening panel.Conclusion: The coverage of screening for DM complications was low across all indicators. Studies to understand barriers to and facilitators of DM complications screening at PHCs are required. Also, interventions to improve diabetes complication screening in the region are needed and should target the primary healthcare providers.
Transition tips: Registering with the Health Professions Council of South Africa as a specialist family physician
Authors: Van der Bijl Chantelle C.
Published: April 2022

No abstract available.
Сильная выпуклость множеств достижимости линейных систем
Authors: Balashov Maxim Viktorovich
Published: April 2022

Для линейной управляемой системы $x'\in Ax {+} U$, $x(0)=0$,
рассматривается множество достижимости на некотором отрезке времени.
Исследован ряд ситуаций, когда это множество достижимости является пересечением шаров фиксированного радиуса $R$ (т.е. сильно выпукло с радиусом $R$), в ряде случаев получена оценка сверху для $R$. Оказывается, свойство быть сильно выпуклым в определенном смысле достаточно типично для указанного множества достижимости.
Полученный результат имеет ряд приложений: возможность построения внешней многогранной аппроксимации множеств достижимости с меньшей, чем в общем случае, погрешностью в метрике Хаусдорфа, приложения в линейных дифференциальных играх и некоторых оптимизационных задачах.
Библиография: 23 названия.
Геометрия расстояния Громова-Хаусдорфа на классе всех метрических пространств
Authors: Borzov Stanislav Igorevich , Ivanov Alexandr Olegovich , Tuzhilin Alexey Avgustinovich
Published: April 2022

Изучается геометрия расстояния Громова-Хаусдорфа на классе всех метрических пространств, рассматриваемых с точностью до изометрии. Здесь класс понимается в смысле аксиоматики фон Неймана-Бернайса-Гeделя. Как и для случая компактных метрических пространств, определяются непрерывные кривые, их длины и показывается, что расстояние Громова-Хаусдорфа является внутренним на всем классе. В качестве приложения рассматриваются метрические сегменты, а именно классы точек, лежащих между двумя заданными, и изучается проблема продолжения таких сегментов за их концевые точки.
Библиография: 13 названий.
Management of Adverse Events Following Immunization
Authors: Amin Ulfat
Published: April 2022

Immunization plays a vital role in big success of promotion of health over the last decade at least, enhancing and improving the livelihood of children around the world. National immunization programs employ vaccines that are both exceptionally safe and beneficial. The manufacturers have several empirical, moral, and legal responsibilities, as well as extensive field trials in terms of individual safety and security.
Indian Sign Language Interpreter using CNN Algorithm
Authors: Shukla Aayush , Parmar Chetan , Deshmukh Ashwini
Published: April 2022

For quiet people, sign dialect could be an imperative implies of communication. Each movement in sign dialect features a unmistakable meaning. As a result, complex meanings may be portrayed employing a blend of a few crucial pieces. Sign language could be a gesture-based dialect utilized by hard of hearing and difficult of hearing people to communicate. It may be a non-verbal dialect that is utilized to assist hard of hearing and difficult of hearing people communicate more effectively with each other and with normal individuals. Sign dialect has its claim set of standards and sentence structure for communicating productively. The two essential sorts of sign dialect acknowledgment are image-based and sensor-based. Signal acknowledgment is getting to be more prevalent in an assortment of areas, counting human interface, communication, mixed media, and security. In most cases, sign acknowledgment is connected to visual comprehension. It is isolated into two stages: discovery and distinguishing proof of signs. The practice of obtaining a characteristic from certain objects based on specified parameters is known as sign detection. Sign identification is the process of recognizing a certain shape that differentiates a thing from other objects. Language is very useful when there are no other options for communicating.
La cuestión colonial en la periferia global y en la mirada de los pueblos oprimidos
Authors: Pinheiro Barbosa Lia
Published: April 2022

La cuestión colonial constituye un fenómeno sociohistórico que emerge en la génesis del capitalismo en la fase de acumulación originaria, profundizándose en un continnum histórico propio de la reproducción ampliada del capital en aquellas sociedades no capitalista, según analizan Karl Marx y Rosa Luxemburgo, respectivamente. Considerando que la fundación de América Latina y el Caribe acontece en el contexto de emergencia y desarrollo del capitalismo, el artículo busca debatir: a) la cuestión colonial como eje estructurante de las relaciones de dominación, explotación y opresión históricamente instituidas en la región; b) la comprensión y conceptualización de la cuestión colonial en la perifería global, a partir de la mirada de los pueblos oprimidos, en especial de los movimientos indígenas y campesinos, y en la producción teórica de los marxismos latinoamericanos. El método empleado es la historia social, con énfasis en procesos políticos y documentos producidos por los movimientos indígenas y campesinos, además de la profundización analítica de la cuestión colonial y sus expresiones, en las categorías del colonialismo interno y el colonialismo global, en la perspectiva del marxismo latinoamericano. La principal conclusión del artículo es evidencia de las persistencias del colonialismo en la historia coetánea de Latinoamérica y el Caribe, sobre todo en la etapa actual del capitalismo por expoliación, por lo tanto, la vigencia de la cuestión colonial en tanto categoría interpretativa de las contradicciones propias de la naturaleza de la explotación y marginación en el Sur Global y que debe de ser profundizada en los análisis del marxismo latinoamericano.
Encounters with CAQDAS: Advice for Beginner Users of Computer Software for Qualitative Research
Authors: Niedbalski Jakub , Ślęzak Izabela
Published: April 2022

We intend this article to be predominantly for researchers who would like to use software of the CAQDAS family in their research projects. Our experience as researchers and CAQDAS instructors shows that the introduction of software into the analytic process often poses a challenge. This is true for both novice and more seasoned researchers with entrenched habits of conducting research in a traditional manner. The literature available provides few answers to the questions preoccupying inexperienced users; our aim is to close this gap by providing useful information. We discerned major problem areas for scholars who are just setting off on their journey with CAQDAS. We tackle these issues in our article by providing replies to key questions: Is CAQDAS for me? How can I effectively search for and identify a suitable program? What should I bear in mind when using CAQDAS? By pitting benefits against limitations of CAQDAS implementation, we intend to address the expectations of using software in research.
Analisis Marketing Syariah Dalam Menghadapi Covid 19 (Studi Kasus Arpi Hijab Kuningan)
Authors: Hardiyanto Feri
Published: April 2022

Penelitian ini memiliki dua rumusan masalah, yaitu tentang strategi pemasaran syariah pada saat pandemi Covid 19 dan kendala pemasaran syariah  pada saat pandemi Covid 19. Tujuan penelitian ini adalah untuk mengetahui bagaimana strategi pemasaran syariah pada Toko Arpi hijab Kuningan pada masa pandemi Covid-19 dalam perspektif ekonomi Islam serta apa saja kelebihan dan kekurangannya. Pemasaran merupakan wujud prestasi atas kerja kegiatan usaha yang berkenaan dengan mengalirnya barang serta jasa dari produsen hingga ke konsumen. Di samping penafsiran itu juga terdapat pandangan yang luas, yang mengatakan pemasaran ialah rangkaian kegiatan usaha yang berkenaan mengalirnya barang-barang atau bahan-bahan masuk kedalam proses produksi.

Penelitian ini menggunakan metode kualitatif lapangan. Metode ini dipilih karena data yang diperoleh dari hasil wawancara peneliti dengan pihak-pihak yang terkait. Pada penelitian ini, peneliti mengumpulkan data dan informasi melalui wawancara, observasi dan dokumentasi.

Dalam pembahasannya peneliti menjelaskan cara marketing pada toko Arpi Hijab, karakteristik marketing syariah, dan strategi marketing syariah dalam praktik pemasaran produk. Dan disini peneliti menemukan cara yang unik pada setiap jawaban yang diajukan terhadap narasumber, namun ada pula jawaban serupa yang sebenarnya memiliki maksud yang sama.

Dari penelitian yang dilakukan penulis diperoleh hasil sebagai berikut: strategi marketing syariah yang relevan menggunakan empat key success fsctors yaitu Shiddiq, Amanah, Fathanah, dan Tablight. Dalam hal ini materi dan biaya marketing menjadi tanggung jawab pihak penjual. Keempat key success factors ini sesuai dengan tinjauan perspektif Islam setiap praktik jual beli harus dilihat dari seberapa besar kemaslahatan dan kemudharatannya, agar transaksi menjadi sah sesuai dengan ajaran islam.

Kata kunci: Marketing Syariah, Menghadapi Pandemi, Covid-19
Analisis Pembiayaan Mudharabah Dalam Meningkatkan Pendapatan Nasabahdi Bmt Bina Ummat Sejahtera Cabang Losari Brebes
Authors: Huda Naelul
Published: April 2022

Perbankan syariah satu diantara lembaga keuangan yang mempunyai dampak besar dalam siklus perekonomian masyarakat. Bank merupakan suatu lembaga bagi masyarakat untuk menyimpan uang serta juga bisa menjadi tempat peminjaman uang disaat ada masyarakat yang memerlukan. Selaras dengan waktu yang berjalan, bank sudah menjadi suatu kebutuhan hidup manusia. Adapun tujuan penelitian ini berdasarkan hasil yang ingin diraih dari rumusan masalah penelitian yang telah diuraikan sebelumnya, diantaranya:1. Untuk mengetahui Bagaimana Implementasi Pembiayaan  Mudharabah di BMT Bina Ummat Sejahtera Cabang Losari Brebes.2. Untuk menganalisa Bagaimana Proses Pembiayaan Mudharabah dalam meningkatkan pendapatan nasabah di BMT Bina Ummat Sejahtera Cabang Losari Brebes. 3. Untuk mengetahui Hal apa saja yang menjadi kendala BMT Bina Ummat Sejahtera Cabang Losari Brebes dan bagaimana solusinya. Metode penelitian ini menggunakan dengan metode Kualitatif yang bersifat induktif dengan langkah mencari data, menemukan konsep dan mengurai teori yang secara teknis akan dilakukan dari sesuatu yang bersifat spesifik yang umum yang menentukan apa yang menjadi masalah utama penelitian. Pendekatan kualitatif upaya menekankan untuk memberikan gambar yang jelas  sesuai dengan fakta ditemukan dilapangan. Pembiayaan Mudharabah di BMT merupakan suatu pembiayaan yang diberikan oleh BMT kepada anggotanya, dimana prosedurnya tidak jauh berbeda dengan pembiayaan mudharabah yang ditawarkan oleh Bank Syariah. Dimana pihak BMT (shahibul maal) memberikan modal (uang) kepada nasabah (mudharib) untuk keperluan tambahan modal usaha, dimana nantinya nisbah bagi hasilnya dibagi dua sesuai dengan kesepakatan bersama, dan dalam sistemnya menggunakan akad mudharabah. Dengan adanya pembiayaan mudharabah di BMT Bina Ummat Sejahtera Cabang Losari Brebes dapat menjadi alternatif untuk menambah modal usaha nasabah sehingga usahapun mengalami kemajuan yaitu adanya peningkatan dalam hal pendapatan, produksi dan kinerja. Dengan meningkatnya produksi maka dengan otomatis pendapatan nasabah juga ikut meningkat.

Kata kunci: Mudharabah, pendapatan, Pembiayaan.
ANALISA PENGARUH LOKASI, VARIASI PRODUK DAN KUALITAS PELAYANAN TERHADAP KEPUASAN PELANGGAN PADA RESTORAN AYAM AYAM RESTO DI KLODRAN COLOMADU KARANGANYAR JAWA TENGAH
Authors: Suhardi
Published: April 2022

Penelitian ini bertujuan untuk mengetahui seberapa besar pengaruh lokasi, variasi produk dan kualitas pelayanan terhadap kepuasan pelanggan pada restoran Ayam Ayam Resto di Klodran, Colomadu, Karanganyar, Jawa Tengah. Jenis penelitian mengunakan penelitian kuantitatif. Populasi yang diteliti, restoran Ayam Ayam Resto. Sampelnya sebagian pelanggan. Pengambilan sampel mengunakan insidential. Jumlah sampel 100 orang. Analisa data regresi linear berganda. Pengujian dengan uji t, uji F, dan Koefisien determinasi. Hasil analisa data menunjukan bahwa persamaan regresi linear berganda didapatkan Y = 7,584 + 0,170 X1 + 0,218 X2 + 0,112 X3 Koefisien determinasi menunjukan 0,395. Hasil uji t diperoleh thitung pada X1 sebesar 3,428 > ttabel 1,985, nilai signifikansi 0,001 < 0,05. Hasi uji t diperoleh thitung pada X2 sebesar 4,242 > ttabel 1,985. dan nilai signifikansi 0,048 < dari 0,05. Hasil uji t diperoleh thitung pada X3 sebesar 2,641 > ttabel 1,985 dan nilai signifikansi 0,010 < 0,05. Hasil uji F diperoleh Fhitung > Ftabel (20,899 >2,70), signifikansi 0,000 < 0,05.  Kesimpulan : Lokasi, variasi produk dan kualitas pelayanan secara parsial berpengaruh positif signifikan terhadap kepuasan pelanggan. Secara simultan lokasi, variasi produk dan kualitas pelayanan berpengaruh positif signifikan terhadap kepuasan pelanggan pada restoran Ayam Ayam Resto di Klodran, Colomadu, Karanganyar, Jawa Tengah.

Lokasi; Variasi Produk; Kualitas Pelayanan dan Kepuasan Pelanggan
Pengembangan Karir dalam Mengukur Tingkat Produktivitas Kerja Karyawan pada PT. Bank (BJB) Cabang Sukabumi
Authors: Luthfiani Lulu , Samsudin Acep , Komariah Kokom
Published: April 2022

Penelitian ini menggunakan metode penelitian kuantitatif dengan pendekatan deskriptif dan asosiatif untuk mengukur produktivitas kerja karyawan yang bekerja pada PT. Bank BJB kantor cabang Sukabumi. Adapun populasi ini pada seluruh karyawan yang berjumlah 140 karyawan dengan menggunakan sampel sampling jenuh. Teknik pengumpulan data yang digunakan adalah wawancara serta memberikan kuesioner, pengukuran penelitian menggunakan Skala Likert. Dalam teknik analisis data koefisien determinasi dengan pengujian hipotesis Uji Tdengan bantuan software SPSS versi 24. Hasil penelitian ini menunjukan (1) Variabel pengembangan karir berpengaruh positif dan signifikan terhadap produktivitas kerja karyawan pada PT. Bank BJB kantor cabang Sukabumi (2) Hasil menunjukan bahwa pengembangan karir mempengaruhi produktivitas kerja karyawan sebesar 44,4% dan 55,6% sisanya dipengaruhi oleh variabel lain yang tidak diteliti. (3) Berdasarkan dari hasil perhitungan menunjukan persamaan regresi linier berganda, sebagai berikut : Y = 0,2669 + 0,824X. Koefisien regresi bernilai positif sehingga dapat dikatakan bahwa arah pengaruh pengembangan karir adalah pengaruh positif.
Analisis Sifat Mekanik Beton Geopolymer Berbahan Dasar Fly Ash PLTU Pangkalan Susu
Authors: Rozi Muhammad Fakhru , Johannes Tarigan  , Ahmad Perwira
Published: April 2022

Dalam proses produksi semen portland terjadi pelepasan karbon dioksida (CO2) yang merupakan kontributor utama pada emisi gas rumah kaca, produksi satu ton portland mengakibatkan terjadinya pelepasan karbon dioksida sebesar satu ton di atmosfir. Untuk mengatasi efek buruk yang merusak lingkungan ini, maka diperlukan material lainnya sebagai pengganti semen portland untuk digunakan pada campuran beton sehingga didapatkan beton yang ramah lingkungan. Beton geopolymer merupakan salah satu solusi yang baik. Beton geopolymer adalah campuran beton yang menggunakan fly ash sisa pembakaran batubara sebagai pengganti semen sebagai bahan pengikat. Penelitian ini bertujuan untuk mengetahui kandungan senyawa kimia dan sifat mekanik beton geopolymer berbahan dasar fly ash PLTU Pangkalan Susu dengan larutan alkalin 8M dan perbandingan agregat dan binder adalah 70%:30% . Hasil dari penelitian yang telah dilakukan adalah  fly ash PLTU Pangkalan Susu merupakan fly ash kelas C yang mengandung 34,81% SiO2, 25,39% CaO, 14,92% Al2O3, 16,49% Fe2O3 dan 4,92% MgO dengan total senyawa SiO2, Al2O3, dan Fe2O3 adalah 66,22%. Fly ash kelas C termasuk fly ash yang dapat digunakan sebagai campuran beton geopolymer menurut ASTM-C618.Kuat tekan beton geopolymer 28 hari yang dihasilkan adalah 28,5 MPa dan kuat tarik 28 hari adalah 6,83 MPa. Sehingga dapat disimpulkan bahwa beton geopolymer ini dapat digunakan dalam aplikasi konstruksi di lapangan dan penggunaan fly ash PLTU Pangkalan Susu sebagai pengganti semen dapat mengurangi penggunaan semen yang menyebabkan pencemaran lingkungan dan mengurangi limbah hasil industri.
Aplikasi Kamus Silabel Berbasis Android
Authors: Paembonan Maya , Richard Mebri Stevie , K Milin Yandri
Published: April 2022

Silabel merupakan suku kata atau satuan ritmis terkecil dalam suatu arus ujaran. Ritmis yang dimaksud umumnya dikenal dengan sebutan rima. Silabel digunakan untuk membuat lirik lagu atau puisi. Dengan berkembanganya teknologi smatrphone pada zaman digital saat ini, maka mempengaruhi perubahan pola gaya hidup masyarakat yaitu masyarakat lebih cenderung menggunakan media digital dibanding media cetak. Karena dapat digunakan dimanapun dan kapanpun. Oleh karena itulah penulis membuat Kamus Silabel ini dengan berbasis Android. Penelitian ini dilakukan dengan cara membut aplikasi di Android Studio, menyimpan database pada SQLite. Tahap akhir dari penelitian ini adalah pengujian aplikasi di Android Virtual Devices  dan menginstall aplikasi di Smartphone. Hasil akhir dari penelitian ini adalah terbentuknya aplikasi kamus Silabel dan dapat membaca data dari database SQLite.Hasil pengujian menunjukkan bahwa aplikasi dapat dijalankan baik secara fisik maupun virtual.
Pengelolaan Pembelajaran Literasi Teknologi Di Pesantren
Authors: Rosyida Ida
Published: April 2022

Literasi tidak hanya sekedar pada tataran pembiasaan membaca dan menulis saja, tetapi program literasi perlu juga menitikberatkan pada literasi yang berbasis teknologi informasi. Literasi lebih dari sekadar membaca dan menulis, namun mencakup keterampilan berpikir menggunakan sumber-sumber pengetahuan dalam bentuk cetak, visual, digital, dan auditori. Di abad 21 ini, kemampuan ini disebut sebagai literasi informasi. Dapat disimpulkan bahwa literasi yang dimaksud tidak sebatas melek membaca dan menulis tetapi juga melek IT, IT sebagai motor jaman yang semakin lama semakin canggih. Jadi Literasi teknologi informasi sangat penting sebagai bagian dari kegiatan literasi pesantren. Tujuan penelitian ini adalah untuk mengidentifikasi gambaran empirik mengenai pengelolaan Pembelajaran literasi teknologi informasi di Pesantren Alkasyaf Bandung dan Pesantren Alam Pangrango Bogor.Secara khusus tujuan penelitian ini adalah untuk mengidentifikasi Perencanaan, pengorganisasian, Pelaksanaan, valuasi, pencapaian, Faktor pendukung dan penghambat dalam pembelajaran literasi teknologi informasi di Pesantren Alkasyaf dan Pesantren Alam Pangrango Bogor.
Penelitian ini menggunakan metode deskriptif analisis dengan pendekatan kualitatif dimana penelitian ini bertujuan untuk menggambarkan keadaan pengelolaan pembelajaran literasi teknologi informasi di Pesantren Alkasyaf Bandung dan Pesantren Alam Pangrango Bogor dengan pengumpulan data melalui observasi, wawancara dan dokumentasi. Hasil penelitian ini adalah Perencanaan pengelolaan pembelajaran literasi teknologi informasi dipesantren alkasyaf dan Alam pangrango Bogor semuanya termuat dalam Renstra Pesantren. Fokus rencana meliputi Pembiasaan, Pengembangan dan Pembelajaran literasi teknologi informasi. Struktur organisai umum terdiri atas Penanggung Jawab (pimpinan madrasah) Ketua Tim Literasi (kepala perpustakaan, Anggota (pengurus pustaka/taman baca dan guru lainnya). Pelaksanaan pembelajaran literasi teknologi informasi di dilakukan dengan 3 tahap yaitu Pembiasaan,Pengembangan dan Pembelajaran, dimana dalam pelaksanaanya selain memanfaatkan alam dan teknologi sebagai sumber belajar, literasi teknologi informasi juga dilakukan melalui program menulis dan public speaking (Sabu-sabu atau satu bulan satu buku dan Saha sace atau satu hari satu ceramah).
MAKING THE MOST OF DIGITAL CUTTINGS IMAGE DURING OPERATIONS
Authors: MOREIRA PABLO
Published: April 2022

CHARACTERISING A RESERVOIR IS A COMPLEX PROCESS REQUIRING DETAILED ANALYSIS AND PROCESSING OF ACQUIRED DATA. ROCK CORE EXTRACTED FROM WITHIN A RESERVOIR SERVES AS A VALUABLE, FIRST HAND INSIGHT INTO THE RESERVOIR. THE TIMELY DESCRIPTION AND INTERPRETATION OF THE CORE CAN HAVE A MAJOR IMPACT ON PROSPECT GENERATION AND FIELD DEVELOPMENT. THE ADOPTION OF A NEW DIGITAL CORE DESCRIPTION AND INTERPRETATION WORKFLOW HAS IMPROVED THE DELIVERY SPEED AND ACCURACY OF FORMATION DATA FOR RESERVOIR MODELLING. HISTORICALLY SEDIMENTOLOGISTS EXPRESSED THEIR INTERPRETATIONS WITH CREATIVITY, FLEXIBILITY AND PERSONALITY USING PENCIL AND PAPER. WITHIN THE ORGANISATION, PROCESSES TO ASSIMILATE THESE INTERPRETATIONS INTO A DIGITAL WORKFLOW REQUIRED RETROSPECTIVE DIGITISING OF THE PAPER SHEET. THIS CONVERSION COULD TAKE AS MUCH AS SIX HOURS AND TWO SEPARATE APPLICATIONS TO COMPLETE WITH BOTH GEOLOGIST AND TECHNICIAN INVOLVED IN THE CONVERSION AND QUALITY CONTROL PROCESS. A NEW APPLICATION AND WORKFLOW HAVE BEEN INTRODUCED TO DIRECTLY DESCRIBE THE CORE VIA A STYLUS ON A TABLET. THE ERGONOMICS OF THE PROCESS IS SIMILAR TO THAT OF USING PENCIL AND PAPER BUT THE DIGITAL OUTPUT CAN BE FULLY INTEGRATED WITH GEOLOGY, PETROPHYSICS, AND MODELLING ENVIRONMENTS. COMPANY STANDARD LOG TEMPLATES, INCLUDING A UNIFORM LIBRARY OF SYMBOLS, PATTERNS AND STRUCTURES, PROVIDE A COMMON INTERPRETIVE ENVIRONMENT THAT BENEFITS CORRELATION AND RETROSPECTIVE ANALYSIS. PRIOR TO ADDRESSING THE CORE, GEOLOGISTS LOAD AND DISPLAY LOGGING DATA, CORE GAMMA AND PLUG DATA WHERE AVAILABLE TO ORIENTATE AND GUIDE THE DESCRIPTION. EXPORT ROUTINES ENSURE DATA GENERATED IS EASILY AVAILABLE TO THE CORPORATE DATA STORE AND OTHER ENTERPRISE LEVEL APPLICATIONS IN THE CRITICAL PATH OF RESERVOIR CHARACTERISATION. AS A STANDARD OPERATING PROCEDURE WITHIN THE CORE LABORATORY, STAFF AND CONSULTANT GEOLOGISTS CAN DELIVER A CONSISTENT QUALITY OF FORMATION DATA. THESE TECHNOLOGIES HAVE BEEN SUCCESSFULLY APPLIED IN A GLOBAL MAJOR OIL OPERATOR AND IS A POTENTIALLY TOOL TO INTEGRATE THE LITHOFACIES FROM CORE HAVE BEEN CORRELATED WITH PETROPHYSICS DATA TO HELP GUIDE OPTIMAL FIELD DEVELOPMENT INCLUDING THE RE-CALIBRATION OF HYDROCARBON BEARING RESERVOIR FACIES DEPTHS THAT HAS INCREASED NET PAY.
ONSHORE, A NOVA FRONTEIRA ENERGÉTICA DO BRASIL
Authors: FÉLIX CARVALHO BEZERRA MÁRCIO
Published: April 2022

THE ONSHORE OIL AND GAS INDUSTRY IS EXPERIENCING ITS GREATEST TRANSFORMATION. IN RECENT YEARS, IMPORTANT ADVANCES, IN THE MOST VARIED AREAS AND FRONTS OF ACTION, HAVE PROVIDED THE FORMATION OF A MORE PLURAL, DYNAMIC ENVIRONMENT WITH UNPRECEDENTED OPPORTUNITIES. IN THIS NEW ENVIRONMENT, NEW TECHNOLOGIES AND EXPLORATORY PROJECTS, ALONG WITH THE USE OF GEOSCIENCE, WILL BE KEY PIECES TO UNLOCK THE POTENTIAL OF BRAZILIAN ONSHORE AND MAXIMIZE THE LIFE OF MATURE FIELDS. BASED ON THIS, ENP BELIEVES THAT SOLUTIONS THAT INTEGRATE THE INDUSTRY AND ACADEMY WILL BE THE GATEWAY TO THE REEXPLORATION OF ONSHORE AS THE NEW BRAZILIAN ENERGY FRONTIER.
PEREGRINO ROCK TYPES: AN ALTERNATIVE FOR PETROPHYSICAL PARAMETERS DISTRIBUTION
Authors: MASUTTI LEONARDO , HALL STEVENSON , DE OLIVEIRA JÁDISON
Published: April 2022

THE CREATION OF ROCK TYPES IS A PROCESS THAT MAKES IT POSSIBLE TO RELATE GEOLOGICAL FACIES AND PETROPHYSICAL PROPERTIES IN OIL RESERVOIRS. ROCK TYPES MUST ALSO CORRESPOND TO THE DYNAMIC BEHAVIOR OF ROCKS, CONTROLLED BY TEXTURAL FEATURES SUCH AS POROSITY TYPE AND PORE SPACE DISTRIBUTION (PORE THROAT). ROCK TYPES INTERPRETED FROM ELECTRICAL LOG RESPONSES ARE COMMONLY KNOWN AS ELECTRO-FACIES. FOR RESERVOIR MODELING, THE ROCK TYPES ARE DISTRIBUTED THROUGHOUT THE MODEL, GUIDING THE DISTRIBUTION OF PETROPHYSICAL PROPERTIES OF THE ROCKS PRESENT IN THE RESERVOIR. FLOW UNITS CAN BE CONSIDERED AS THE CONNECTION OF SIMILAR ROCK TYPES IN THE RESERVOIR. IN THE PEREGRINO FIELD, PETROPHYSICAL PARAMETERS SUCH AS PERMEABILITY, SATURATION AND RELATIVE PERMEABILITY ARE DISTRIBUTED BY THREE MAIN ELECTRO-FACIES. THESE THREE ELECTRO-FACIES ARE DEFINED BASICALLY BY SHALE VOLUME CUT-OFF AND TOTAL POROSITY AMOUNT. HOWEVER, DURING THE DEVELOPMENT OF THIS FIELD IT HAS BEEN POSSIBLE TO OBSERVE SOME VARIABILITY IN PRODUCTION(?) INSIDE OF THESE ELECTRO-FACIES, WHICH NEEDS TO BE ACCOUNTED FOR IN THE MODEL REPRESENTATIONS. THESE SUB-ELECTRO-FACIES OBSERVED HAVE DIFFERENT PETROPHYSICAL PROPERTIES BUT SIMILAR ELECTRICAL RESPONSE AS THE MAIN ELECTRO-FACIES INITIALLY INTERPRETED. THIS WORK PRESENTS THE ROCK TYPING METHODOLOGY IN ORDER TO SOLVE THIS ISSUE, BY CLASSIFYING THE PEREGRINO RESERVOIR ROCKS INTO FLOW UNITS. MORE THAN 400 CORE SAMPLES WITH POROSITY AND PERMEABILITY MEASUREMENTS HAD BEEN USED FOR DEFINING THE FLOW UNITS. SPECIAL CORE ANALYSES FROM MICP ALSO HAVE CORROBORATED THE RESULTS. THE FLOW UNITS WERE DISTRIBUTED IN THE GEOLOGICAL MODEL, IN TURN GUIDING THE PETROPHYSICAL PARAMETER DISTRIBUTIONS, SUCH AS PERMEABILITY AND WATER SATURATION, IMPROVING THE RESERVOIR HETEROGENEITY. CONSEQUENTLY, IT IS POSSIBLE TO ACHIEVE A STATIC MODEL MORE FAITHFUL TO THE RESERVOIR GEOLOGY AND SUBSEQUENTLY A MORE PREDICTIVE SIMULATION MODEL.