bluuebunny/crossref_metadata_2025 huggingface dataset:
Three-Dimensional Block Matching Using Orthonormal Tree-Structured Haar Transform for Multichannel Images
Authors: Ito Izumi , Pižurica Aleksandra
Published: February 2020

Multichannel images, i.e., images of the same object or scene taken in different spectral bands or with different imaging modalities/settings, are common in many applications. For example, multispectral images contain several wavelength bands and hence, have richer information than color images. Multichannel magnetic resonance imaging and multichannel computed tomography images are common in medical imaging diagnostics, and multimodal images are also routinely used in art investigation. All the methods for grayscale images can be applied to multichannel images by processing each channel/band separately. However, it requires vast computational time, especially for the task of searching for overlapping patches similar to a given query patch. To address this problem, we propose a three-dimensional orthonormal tree-structured Haar transform (3D-OTSHT) targeting fast full search equivalent for three-dimensional block matching in multichannel images. The use of a three-dimensional integral image significantly saves time to obtain the 3D-OTSHT coefficients. We demonstrate superior performance of the proposed block matching.
Filling the Gap of Data-Limited Fish Species in the Eastern Mediterranean Sea: A Contribution by Citizen Science
Authors: Naasan Aga Spyridopoulou Roxani , Langeneck Joachim , Bouziotis Dimitris , Giovos Ioannis , Kleitou Periklis , Kalogirou Stefanos
Published: February 2020

The biodiversity of the Mediterranean Sea is rapidly changing due to anthropogenic activity and the recent increase of seawater temperature. Citizen science is escalating as an important contributor in the inventory of rare and data-limited species. In this study, we present several records of five data-limited native fish species from the eastern Mediterranean Sea: Alectis alexandrina (Geoffroy Saint-Hilaire, 1817), Ranzania laevis (Pennant, 1776), Dalatias licha (Bonnaterre, 1788), Lophotus lacepede (Giorna, 1809), and Sudis hyalina (Rafinesque, 1810). All of the records were collected by a participatory process involving fishers and validated by associated taxonomic experts of the citizen science programme “Is it Alien to you? Share it!!!”. This study fills an important gap for the distribution of the reported species and signifies the important role of citizen participation as a tool for extending marine biodiversity knowledge and fisheries management in an area with several gaps of knowledge on targeted and non-targeted species.
Model of Bio-Colonisation on Mooring Lines: Updating Strategy Based on a Static Qualifying Sea State for Floating Wind Turbines
Authors: Decurey Benjamin , Schoefs Franck , Barillé Anne-Laure , Soulard Thomas
Published: February 2020

Bio-colonisation affects the ageing of materials and the behaviour of offshore structures. Mooring systems and umbilicals belong to the family of slender bodies which are components sensitive to bio-colonisation because of a change of dynamic behaviour due to shape, roughness and mass modifications. However, this stochastic process in time and space is hard to predict. The purpose is then twofold: first, to provide a stochastic spatial model of the bio-colonisation on a mooring line; second, to show that in some defined environmental conditions, such as low wave height, low wind and current velocities, the monitoring of mooring lines tension can help to assess and reduce uncertainty on this model. Therefore, a comprehensive stochastic modelling based on mussels colonisation was carried out using on-site videotapes, experimental campaigns and expert knowledge. We studied the efficiency of a virtual sensing network using this model and a conditional entropy metric. It is first shown that the spatial model fits well with experimental data, and second that a denser medium accuracy sensor network is to be preferred to a single high accuracy fairlead sensor to reduce the uncertainty on the model parameters. It is then worth updating bio-colonisation on mooring lines during the life-time of a floating wind turbine.
Synthesis of Fe/Mg-Biochar Nanocomposites for Phosphate Removal
Authors: Tao Xuefeng , Huang Tao , Lv Bo
Published: February 2020

Magnetic biochar derived from agricultural biomass has been recognized as a cost-effective biochar sorbent for phosphate removal. This study evaluated the use of novel Fe/Mg-biochar nanocomposites (WBC1x), prepared by impregnating ground walnut shell in a solution with a different molar ratio of Fe2+ to Mg2+, then pyrolyzing slowly, at a temperature of 600 °C, to remove phosphate. The results showed that MgO and Fe3O4 were loaded onto the biochar successfully through the impregnation-pyrolysis method and the composites were able to be separated easily by magnetic field. Meanwhile, a higher surface area and point of zero charge on WBC1x were observed compared to the non-magnetic biochar (WBC). Moreover, the isothermal adsorption and kinetics data further suggested the that phosphate adsorption onto WBC1x resulted from chemisorption. Additionally, the maximum phosphate adsorption capacity of WBC1x was 6.9 mg.g−1, obtained though the Langmuir–Freundlich model, which was threefold higher than WBC, where MgO addition could enhance the adsorption capacity of WBC1x markedly by improving the surface charge.
Application of Light Metal Alloy EN AW 6063 to Vehicle Frame Construction with an Innovated Steering Mechanism
Authors: Blatnický Miroslav , Sága Milan , Dižo Ján , Bruna Marek
Published: February 2020

Nowadays the automotive industry is mainly focused on competition, and this fact forces vehicle producers to constantly look for improvements in the areas of quality and reliability. Life-span, flawless operation, and safety are directly interconnected. Therefore, much attention and resources are spent on research factors that affect the stated properties. Significant capital is invested in the optimization of the constructional solutions and innovative material applications related to the safety and durability of the constructions. This paper presents the results obtained while developing a new ecological three-wheeled vehicle. The main research areas were focused on replacing the original material with a light aluminum alloy, while achieving a substantial improvement in drivability for the three-wheeled vehicle by implementing a modified front wheel steering system. The submitted research achieved a weight reduction of the frame by 40 kg by applying light material substitution (EN AW 6063.T66), which will naturally have a positive impact on the range of the designed electric vehicle; furthermore, we implemented an innovative steering mechanism optimized during the experimental operations.
Design, Characterization and Molecular Modeling of New Fluorinated Paramagnetic Contrast Agents for Dual 1H/19F MRI
Authors: Hequet Emilie , Henoumont Céline , Djouana Kenfack Vera , Lemaur Vincent , Lazzaroni Roberto , Boutry Sébastien , Vander Elst Luce , Muller Robert N. , Laurent Sophie
Published: February 2020

One major goal in medical imaging is the elaboration of more efficient contrast agents (CAs). Those agents need to be optimized for the detection of affected tissues such as cancers or tumors while decreasing the injected quantity of agents. The paramagnetic contrast agents containing fluorine atoms can be used for both proton and fluorine magnetic resonance imaging (MRI), and they open the possibility of simultaneously mapping the anatomy using 1H MRI and accurately locating the agents using 19F MRI. One of the challenges in this domain is to synthesize molecules containing several chemically equivalent fluorine atoms with relatively short relaxation times to allow the recording of 19F MR images in good conditions. With that aim, we propose to prepare a CA containing a paramagnetic center and nine chemically equivalent fluorine atoms using a cycloaddition reaction between two building blocks. These fluorinated contrast agents are characterized by 19F NMR, showing differences in the fluorine relaxation times T1 and T2 depending on the lanthanide ion. To complement the experimental results, molecular dynamics simulations are performed to shed light on the 3D-structure of the molecules in order to estimate the distance between the lanthanide ion and the fluorine atoms.
A Functional Data Analysis Approach for the Detection of Air Pollution Episodes and Outliers: A Case Study in Dublin, Ireland
Authors: Martínez Torres Javier , Pastor Pérez Jorge , Sancho Val Joaquín , McNabola Aonghus , Martínez Comesaña Miguel , Gallagher John
Published: February 2020

Ground level concentrations of nitrogen oxide (NOx) can act as an indicator of air quality in the urban environment. In cities with relatively good air quality, and where NOx concentrations rarely exceed legal limits, adverse health effects on the population may still occur. Therefore, detecting small deviations in air quality and deriving methods of controlling air pollution are challenging. This study presents different data analytical methods which can be used to monitor and effectively evaluate policies or measures to reduce nitrogen oxide (NOx) emissions through the detection of pollution episodes and the removal of outliers. This method helps to identify the sources of pollution more effectively, and enhances the value of monitoring data and exceedances of limit values. It will detect outliers, changes and trend deviations in NO2 concentrations at ground level, and consists of four main steps: classical statistical description techniques, statistical process control techniques, functional analysis and a functional control process. To demonstrate the effectiveness of the outlier detection methodology proposed, it was applied to a complete one-year NO2 dataset for a sub-urban site in Dublin, Ireland in 2013. The findings demonstrate how the functional data approach improves the classical techniques for detecting outliers, and in addition, how this new methodology can facilitate a more thorough approach to defining effect air pollution control measures.
On a New Half-Discrete Hilbert-Type Inequality Involving the Variable Upper Limit Integral and Partial Sums
Authors: Liao Jianquan , Wu Shanhe , Yang Bicheng
Published: February 2020

In this paper we establish a new half-discrete Hilbert-type inequality involving the variable upper limit integral and partial sums. As applications, an inequality obtained from the special case of the half-discrete Hilbert-type inequality is further investigated; moreover, the equivalent conditions of the best possible constant factor related to several parameters are proved.
Markers of Subclinical Cardiovascular Disease in Patients with Adrenal Incidentaloma
Authors: Szychlińska Magdalena , Baranowska-Jurkun Angelika , Matuszewski Wojciech , Wołos-Kłosowicz Katarzyna , Bandurska-Stankiewicz Elżbieta
Published: February 2020

Due to the growing availability of imaging examinations the percentage of patients with incidentally diagnosed adrenal tumors has increased. The vast majority of these lesions are benign, non-functioning adenomas, although according to various estimates even up to 30%–50% of patients with adrenal incidentaloma may present biochemical hypercortisolemia, without typical clinical features of Cushing’s syndrome. Adrenal adenomas secreting small amounts of glucocorticoids may cause morphological and functional changes in the myocardium and blood vessels. Early stages of cardiovascular remodeling may be observed among asymptomatic patients with adrenal adenoma. Vascular changes precede the development of cardiovascular diseases and can increase morbidity and mortality in patients with adrenal incidentaloma. This risk may result not only from the traditional risk factors. Seemingly hormonally inactive adrenal tumors can indeed produce small amounts of glucocorticoids that have metabolic implications. Therefore, evaluation of patients with incidental adrenal findings presenting with subclinical cardiovascular disease seems of particular importance.
Community Structures and Antifungal Activity of Root-Associated Endophytic Actinobacteria in Healthy and Diseased Cucumber Plants and Streptomyces sp. HAAG3-15 as a Promising Biocontrol Agent
Authors: Cao Peng , Li Chenxu , Wang Han , Yu Zhiyin , Xu Xi , Wang Xiangjing , Zhao Junwei , Xiang Wensheng
Published: February 2020

Microorganisms related to plant roots are vital for plant growth and health and considered to be the second genome of the plant. When the plant is attacked by plant pathogens, the diversity and community structure of plant-associated microbes might be changed. The goal of this study is to characterize differences in root-associated endophytic actinobacterial community composition and antifungal activity between Fusarium wilt diseased and healthy cucumber and screen actinobacteria for potential biological control of Fusarium wilt of cucumber. In the present research, three healthy plants (also termed “islands”) and three obviously diseased plants (naturally infected by F. oxysporum f. sp. cucumerinum) nearby the islands collected from the cucumber continuous cropping greenhouse were chosen as samples. Results of culture-independent and culture-dependent analysis demonstrated that actinomycetes in the healthy roots were significantly more abundant than those of diseased roots. Moreover, there were seven strains with antifungal activity against F. oxysporum f. sp. cucumerinum in healthy cucumber roots, but only one strain in diseased cucumber roots. Out of these eight strains, the isolate HAAG3-15 was found to be best as it had the strongest antifungal activity against F. oxysporum f. sp. cucumerinum, and also exhibited broad-spectrum antifungal activity. Thus, strain HAAG3-15 was selected for studying its biocontrol efficacy under greenhouse conditions. The results suggested that the disease incidence and disease severity indices of cucumber Fusarium wilt greatly decreased (p < 0.05) while the height and shoot fresh weight of cucumber significantly increased (p < 0.05) after inoculating strain HAAG3-15. On the basis of morphological characteristics, physiological and biochemical properties and 100% 16S ribosomal RNA (rRNA) gene sequence similarity with Streptomyces sporoclivatus NBRC 100767T, the isolate was assigned to the genus Streptomyces. Moreover, azalomycin B was isolated and identified as the bioactive compound of strain HAAG3-15 based on analysis of spectra using a bioactivity-guided method. The stronger antifungal activity against F. oxysporum f. sp. cucumerinum, the obvious effect on disease prevention and growth promotion on cucumber seedlings in the greenhouse assay, and the excellent broad-spectrum antifungal activities suggest that strain HAAG3-15 could be developed as a potential biocontrol agent against F. oxysporum f. sp. cucumerinum used in organic agriculture. These results suggested that the healthy root nearby the infected plant is a good source for isolating biocontrol and plant growth-promoting endophytes.
Phosphorus Speciation in Long-Term Drained and Rewetted Peatlands of Northern Germany
Authors: Negassa Wakene , Michalik Dirk , Klysubun Wantana , Leinweber Peter
Published: February 2020

Previous studies, conducted at the inception of rewetting degraded peatlands, reported that rewetting increased phosphorus (P) mobilization but long-term effects of rewetting on the soil P status are unknown. The objectives of this study were to (i) characterize P in the surface and subsurface horizons of long-term drained and rewetted percolation mires, forest, and coastal peatlands and (ii) examine the influence of drainage and rewetting on P speciation and distributions using wet-chemical and advanced spectroscopic analyses. The total P was significantly (p < 0.05) different at the surface horizons. The total concentration of P ranged from 1022 to 2320 mg kg−1 in the surface horizons and decreased by a factor of two to five to the deepest horizons. Results of the chemical, solution 31P nuclear magnetic resonance (NMR), and P K-edge X-ray absorption near-edge structure (XANES) indicated that the major proportions of total P were organic P (Po). In the same peatland types, the relative proportions of Po and stable P fractions were lower in the drained than in the rewetted peatland. The results indicate that long-term rewetting not only locks P in organic matter but also transforms labile P to stable P fractions at the surface horizons of the different peatland types.
Design Next Generation Membranes or Rethink the “Old” Asymmetric Membranes?
Authors: Buonomenna Maria Giovanna
Published: February 2020

The first integrally-skinned asymmetric cellulose acetate (CA) membrane for water desalination were developed by Loeb and Sourirajan in the early 1960s at UCLA [...]
Can Botulinum Toxin A Play a Role in Treatment of Chronic Pelvic Pain Syndrome in Female Patients?—Clinical and Animal Evidence
Authors: Chen Chin-Li , Meng En
Published: February 2020

Chronic pelvic pain (CPP) is defined as chronic pain and inflammation in the pelvic organs for more than six months. There are wide ranges of clinical presentations, including pelvic pain, painful intercourse, irritable bowel syndrome, and pain during urinating. Chronic pelvic pain syndrome (CPPS) is a subdivision of CPP, and the pain syndrome may be focused within a single organ or more than one pelvic organ. As there is uncertain pathogenesis, no standard treatment is currently available for CPPS. Botulinum toxin A (BoNT-A) is a potent neurotoxin that blocks acetylcholine release to paralyze muscles. Intravesical BoNT-A injection can reduce bladder pain in patients with interstitial cystitis/bladder pain syndrome. BoNT-A injected into the pelvic floor muscles of women has also been reported to improve chronic pain syndrome. Due to the reversible effect of BoNT-A, repeated injection appears to be necessary and effective in reducing symptoms. Adverse effects of BoNT-A may worsen the preexisting conditions, including constipation, stress urinary incontinence, and fecal incontinence. This review summarizes the evidence of BoNT-A treatment for CPPS in animal studies and clinical studies regarding the therapeutic effects of BoNT-A for CPPS in female patients.
Neutrino Telescopes and High-Energy Cosmic Neutrinos
Authors: Palladino Andrea , Spurio Maurizio , Vissani Francesco
Published: February 2020

In this review paper, we present the main aspects of high-energy cosmic neutrino astrophysics. We begin by describing the generic expectations for cosmic neutrinos, including the effects of propagation from their sources to the detectors. Then we introduce the operating principles of current neutrino telescopes, and examine the main features (topologies) of the observable events. After a discussion of the main background processes, due to the concomitant presence of secondary particles produced in the terrestrial atmosphere by cosmic rays, we summarize the current status of the observations with astrophysical relevance that have been greatly contributed by IceCube detector. Then, we examine various interpretations of these findings, trying to assess the best candidate sources of cosmic neutrinos. We conclude with a brief perspective on how the field could evolve within a few years.
Rapid Resolution of Large Bowel Diarrhea after the Administration of a Combination of a High-Fiber Diet and a Probiotic Mixture in 30 Dogs
Authors: Rossi Giacomo , Cerquetella Matteo , Gavazza Alessandra , Galosi Livio , Berardi Sara , Mangiaterra Sara , Mari Subeide , Suchodolski Jan , Lidbury Jonathan , Steiner Joerg , Pengo Graziano
Published: February 2020

Canine fiber responsive diarrhea is a form of chronic colitis that improves clinically after adding fiber to the diet. In the present study, we investigated the effect of a combination of a high-fiber, highly digestible, hypoallergenic diet with a probiotic mixture in 30 dogs with chronic colitis that were unresponsive to various dietary and/or pharmacological interventions. Fecal scores, canine chronic enteropathy clinical activity index (CCECAI) scores, the dysbiosis index (DI), and histologic images of colonic biopsies were evaluated. At baseline (day 0; T0) and after 30 days of treatment (T1), all variables evaluated in our patients (i.e., fecal and CCECAI scores and histopathology) improved significantly at T1, with the exception of DI. However, there was a numerical shift from a state of dysbiosis to one of normobiosis. The combination of the diet and the probiotic used in the present study induced the resolution of clinical signs in a mean of 8.5 days (maximum 15 days) and did not necessitate any other treatments or the further addition of alimentary fiber.
Optimising management of UTIs in primary care: a qualitative study of patient and GP perspectives to inform the development of an evidence-based, shared decision-making resource
Authors: Lecky Donna M , Howdle Jessica , Butler Christopher C , McNulty Cliodna AM
Published: February 2020

Background

Urinary tract infections (UTIs) are one of the most common bacterial infections managed in general practice. Many women with symptoms of uncomplicated UTI may not benefit meaningfully from antibiotic treatment, but the evidence base is complex and there is no suitable shared decision-making resource to guide antibiotic treatment and symptomatic care for use in general practice consultations.

Aim

To develop an evidence-based, shared decision-making intervention leaflet to optimise management of uncomplicated UTI for women aged <65 years in the primary care setting.

Design and setting

Qualitative telephone interviews with GPs and patient focus group interviews.

Method

In-depth interviews were conducted to explore how consultation discussions around diagnosis, antibiotic use, self-care, safety netting, and prevention of UTI could be improved. Interview schedules were based on the Theoretical Domains Framework.

Results

Barriers to an effective joint consultation and appropriate prescribing included: lack of GP time, misunderstanding of depth of knowledge and miscommunication between the patient and the GP, nature of the consults (such as telephone consultations), and a history of previous antibiotic therapy.

Conclusion

Consultation time pressures combined with late symptom presentation are a challenge for even the most experienced of GPs: however, it is clear that enhanced patient–clinician shared decision making is urgently required when it comes to UTIs. This communication should incorporate the provision of self-care, safety netting, and preventive advice to help guide patients when to consult. A shared decision-making information leaflet was iteratively co-produced with patients, clinicians, and researchers at Public Health England using study data.
Preto velho, memória, juventude umbandista
Authors: Lages Sônia Regina Corrêa
Published: February 2020

Este ensaio oferece uma reflexão sobre a importância das entidades do preto e da preta velha para ajuventude umbandista considerando a intolerância religiosa e as tradições n a modernidade. Eles sãoos representantes da memória histórica da escravização no Brasil e símbolos da diáspora negra nocampo religioso afro brasileiro da umbanda. O racismo alcança este campo religioso na forma depreconceito, discriminação e violência, o que produz desdobramentos na identidade religiosa esubjetividade dos jovens umbandistas. Aquelas entidades, em seus diferentes sentid os, podemoferecer aos jovens instrumental simbólico que os fortaleça nas lutas pelo reconhecimento positivode suas identidades religiosas.
Rethinking African Religious Traditions in Local and Global Context
Authors: Olupona Jacob
Published: February 2020

Opening Speech of the International Interdisciplinary Conference Global African Indigenous and Derived Religions, delivered at the Federal University of Juiz de For a, Brazil, in October 22nd 2018.
I am an igqirha (healer): phenomenological and experiential spiritual journey towards healing identity construction
Authors: Nomfundo Mlisa Lily Rose
Published: February 2020

Traditional healers are acknowledged within their communities as possessing special insight, intuition knowledge and skills to connect and converse with the universe better than an ordinary person. African religions are endowed with a wide variety of traditional healers and healing practices, using diverse healing practices, symbolisms and interpretations relevant to the contextual setting of their cultures. Rooted in that diversified rich ecological heritage of the indigenous religions, are unique personal spiritual journeys that depict individual phenomenological and existential ways of constructing meaningful special spiritual healing identities. Healing identities are created and manifested in different socio-cultural, physical and spiritual abundant sacred spaces travelled by an initiate. This is an inborn gift from ancestors. The spiritual journey is abundantly infested by crisis and requires resilience, passion and faith. I give my personal phenomenological spiritual life journey in the traditional and spiritual quest for a holistically construed healing identity and proper individuation. The journey encompasses various stages with differentiated growth, maturity and competences to be acquired. The objective for this narrative is many fold. It is a response to various individual respondent experiences, questions and inquiries that I always receive from the conference audiences and unique feedback narratives from others who are either in the confusion stage or denial stage, yet they are aware they have a calling to accept. Ukuthwasa journey is briefly discussed and the historical ontology of ukuthwasa is mapped up. The discussion addresses the responses expected as evidence based results to confirm the reality of ukuthwasa and its value to the self, family and community at large. In conclude by highlighting, my own revelations and reflections on what could be done and how I finally achieved my healing identity and its relation to the universe at large.I am a fully-fledge trained igqirha, teacher, nurse and pastor. I practise as a Clinical psychologist and I have founded a prophesized church, a dream I had in 2001. I am also a founder of a community project for rural development at my village. All these achievements were shown to me by dreams and I followed my dreams under very challenging circumstances. I am from a family with a rich lineage of healers from both my paternal and maternal side, yet both became staunch Christian converts and ignored the cultural rites. To become a healer was not easy.
Faith Borders, Healing Territories & Interconnective Frontier? Wellness & Its Ecumenical Construct in African Shrines, Christian Prayerhouses & Hospitals
Authors: Matthew Michael
Published: February 2020

The religious geography of most health-seekers in modern Africa easily transverses the faith worlds of other religious traditions, thus building inevitably a lively-network of ecumenical spaces that surprisingly create an interpenetrating dialogue between African traditional shrines, Christian prayerhouses and western hospitals. The open-border policy of healing sites in Nigeria and Ghana in particular provides ecumenical directions and enriches interfaith conversations among different religious traditions. Consequently, the present study underscores the subversion of the dogmatic rhetoric of the different faith traditions in the quest of health and wholeness at healing sites. This ecumenical triangulation of the faith-borders projects a new religious landscape where the hostile rhetoric of faith traditions are clearly suspended, and a new appreciation of other faiths in definition of health and wellness is popularly entrenched. The existential blurring of dogmatic and traditional faith-borders raises new questions—and interesting perspectives in the modern study of religions, health and inter-faith/ecumenism in Africa.
DISAIN PERENCANAAN ALTERNATIF PENGENDALIAN PERSIMPANGAN (STUDI KASUS: PERSIMPANGAN RAJAWALI KOTA PALEMBANG)
Authors: Ramadhani Ramadhani , Lestari Lilis
Published: February 2020

Persimpangan adalah suatu bentuk pertemuan jalan, dimana pada setiap mulut simpangan (akhir jalan/pertemuan dengan jalan lain) memiliki pergerakan lalu lintas, karakteristik dan pergerakan geometrik, geometric jalan dan konflik-konflik tertentu yang terjadi pada suatu persimpangan. Maksud dari penelitian ini adalah menganalisa variabel kinerja simpang dengan lalu lintas. Vaeriabel yang digunakan adalah derajat kejenuhan dengan menggunakan MKJI. Pemecahan masalah menggunakan alternative 1 kebutuhan lampu hijau, alternative 2 yaitu perencanaan perubahan fase dan alternative 3 yaitu Perencanaan pelebaran jalan. Hasil dari penelitian ini di dapatkan nilai DS 0,99 untuk lengan Rajawali, 1,21 untuk lengan jalan Dempo, 0,83 untuk lengan jalan Veteran-Telkomsel dan 0,94 untuk lengan jalan Veteran-Caritas. Hasil yang didapat DS yang lebih kecil untuk beberapa lengan simpang di bandingkan dengan alternative lainnya yaitu 0,74 untuk lengan Rajawali, 0,75 untuk lengan Dempo, 0,73 untuk lengan Veteran-Telkomsel dan 0,73 untuk lengan jalan Veteran-Ceritas. Dari ketiga alternative diatas, alternative dengan pelebaran jalan memberikan nilain derajat yang paling kecil dan hampir sama nilainya untuk semua lengan.

Keywords: Alternatif, ,Persimpangan, Perencanaan. Pengendalian
STUDI ANALISA PENGARUH SIFAT FISIK BIODIESEL (VISKOSITAS, KADAR AIR DAN ANGKA SETANA) TERHADAP PROSES PEMBAKARAN BAHAN BAKAR DI BOILER FIRE TUBE
Authors: Dwipayana Hendra
Published: February 2020

Peranan boiler dalam industri sangat penting karena boiler berperan sebagai penghasil steam yang kemudian digunakan untuk berbagai macam keperluan pabrik lainnya, antara lain sebagai penggerak turbin, generator, pompa dan sebagainya. Biodiesel sudah sejak lama diyakini sebagai bahan bakar alternatif terbarukan, yang memiliki banyak keunggulan dibanding BBM fosil. Biodiesel memiliki peluang besar untuk mensubstitusi penggunaan bahan bakar minyak solar yang semakin langka. Boiler yang digunakan pada penelitian ini adalah jenis fire tube  pada tekanan 3 bar yang mampu menghasilkan 60.000 kcal/jam. Bahan bakar campuran biodiesel-solar yang digunakan pada penelitian ini yaitu dengan perbandingan B5, B10, B20 dan B25. Biodiesel memiliki viskositas dan angka setana yang tinggi dibandingkan minyak solar sehingga berpengaruh pada penyalaan bahan bakar, penyalaan pada bahan bakar biodiesel lebih cepat dibandingkan dengan minyak solar. Penyalaan yang lebih cepat akan mempercepat terjadinya reaksi pembakaran, semakin cepat terjadi reaksi pembakaran maka panas yang dihasilkan juga lebih tinggi sehingga efisiensi boiler yang dihasilkan juga lebih baik. 

Kata Kunci: biodiesel, boiler, viskositas, angka setana, efisiensi
TINGKAT KINERJA STRUKTUR BAJA BANGUNAN PENJEMURAN KARET PT. MARDEC SIGER WAYKANAN DENGAN PERKUATAN BRESING KONSENTRIK AKIBAT BEBAN GEMPA
Authors: Sapta Sapta , Farlianti Sari
Published: February 2020

Bangunan penjemuran karet adalah bangunan bertingkat, yang digunakan pada pabrik Karet (Crumb Rubber Factory), dimana bangunan ini digunakan untuk penjemuran lembaran karet (rubber sheet) yang digantung pada masing-masing lantai dengan menggunakan penggantung kayu dalam jumlah tertentu, pada perinsipnya bangunan ini digunakan untuk mengeringkan karet dalam bentuk lembaran sehingga bentuk dan posisi bangunan ditentukan berdasarkan arah angin. Pada penelitian ini struktur bangunan penjemuran karet pada PT. Mardec Siger Waykanan terbuat dari struktur Baja Profile Wide Flange (WF) yang merupakan portal terbuka tanpa ada sekat dinding pada setiap lantainya. Dilihat dari  letak geografis berdasarkan peta hazard gempa Indonesia 2010, lokasi bangunan tersebut terletak daerah rawan gempa, sedangkan bila dilihat dari histories bangunan tersebut dibangun pada tahun 2008, yang mana peraturan perencanaan bangunan tahan gempa masih mengacu pada SNI 03-1726-2002 yang mengacu pada UBC97, sedangkan pada saat ini perencanaan bangunan tahan gempa mengacu pada   SNI 03-1726-2012 yang mengacu pada ASCE-10. Dari hasil analisa dengan mengacu pada SNI 03-1726-2012, didapatkan kondisi struktur bangunan mengalami kelebihan tegangan pada penampang (section overstressed) pada kolom dengan Strength Ratio 2,231 > 1 dengan kapasitas nominal beban gempa dasar rencana kurang dari 519,25kN dan drift   antar lantai maksimum arah x sebesar 540,08mm > drift izin sebesar 90mm dan arah y sebesar 118,76mm > drift izin sebesar  90mm, sehingga perlu diadakan perkuatan pada rangka struktur dengan menambahkan Bresing Konsentrik pada Rangka Struktur pada arah melintang (arah y) dan memanjang  (arah x). Dengan adanya perkuatan pada Rangka Struktur Strength Ratio menjadi  0,942 < 1 dengan kapasitas nominal beban gempa dasar rencana sebesar 991,760kN dan drift antar lantai maksimum arah x 9,98mm < Drift izin 90mm dan arah y sebesar 21,94mm. Dari hasil analisa non-linier tingkat kinerja struktur bangunan eksisiting pada perfomance point adalah Collapse (C) dengan kapasitas diambang keruntuhan Vpp= 656,322kN dan Dpp= 394,76kN pada rangka arah-x, untuk bangunan dengan perkuatan tingkat kinerjanya pada perfomance point  adalah Damage Control (IO-LS) dengan kapasitas keruntuhan pada bresing konsentrik sebesar Vpp=2788,563kN dan Dpp= 58,37mm pada rangka arah-y, artinya penggunaan bresing konsentrik sebagai perkuatan pada bangunan eksisting telah memenuhi persyaratan.

Kata kunci: kapasitas, tingkat kinerja, bresing konsentrik, drift, gempa kuat.
PENGGUNAAN BEBAN PENDORONG UMPAN YANG TEPAT PADA HASIL PERAJANGAN KERIPIK SINGKONG
Authors: Sukadi Sukadi
Published: February 2020

The driving load of cassava feed in the cutting process has an influence on the result of cuts cassava chips. This study aims to get a load of cassava feed right that the thickness of cassava cutting results obtained homogeneous and maximum capacity. This study to use the machine design result dimensions of 600 mm x 455mm x 505 mm, blade shaft speed 310 rpm at the Maintenance and Repair Laboratory of Polytechnic Jambi. The data taken is the thickness and when the results of cutting using a plunger load of bait 300 g, 600 g and 900 g. From the research results obtained thickness cuts for all homogeneous load is 1 mm, while for the cutting time with a load of 300 g, 600 g and 900 g respectively take 10.53 seconds, 8.63 seconds and 8.05 seconds. It is concluded that cutting the right time to get the homogeneous and the shortest time possible using the driving load of 900g.

Keywords: cutting, driving load, homogeneous
PENGARUH PELAPISAN SERBUK STELITE 6 DENGAN PROSES LOGAM NYALA API OKSI ASETELIN TERHADAP KETAHANAN AUS
Authors: Djunaidi Rita
Published: February 2020

Kedua logam dasar yaitu baja Tool Steel ASSAB XW-10 dan baja Mild Steel dilapisi serbuk Stellite-6 terjadi peningkatan kekerasan dari 217 HV menjadi 378 HV untuk lapisan baja Tool Steel ASSAB XW-10 dan sebesesar 157 HV menjadi 421 HV untuk lapisan baja Mild Steel. Demikian pula untuk kekerasan makro juga mengalami peningkatan kekerasan sebesar 659 HV dan 241 HV pada lapisan baja Tool Steel ASSAB XW-10 dan baja Mild Steel. Berdsarkan data hasil penelitian terlihat untuk pengujian keausan bahwa baja Tool Steel ASSAB XW-10 memiliki nilai laju aus yang rendah dibanding dengan baja Mild Steel pada tiga kondisi yang berbeda yaitu kecepatan, beban dan jarak luncur, ini menunjukkan bahwa lapisan baja Tool Steel ASSAB XW-10 memiliki daya tahan terhadap keausan dimana kontak permukaan antara lapisannya dengan permukaan logam dasar terlihat baik. Bila diperbandingkan sifat kedua lapisan, lapisan baja Tool Steel ASSAB XW-10 memiliki sifat kekerasan makro dan laju aus yang baik dibanding lapisan pada baja Mild Steel. 

Kata Kunci : Serbuk Stellite-6, baja Tool Steel ASSAB XW-10
PENGARUH PUTARAN PISAU TERHADAP KAPASITAS DAN HASIL PERAJANGAN PADA ALAT PERAJANG SINGKONG
Authors: Sukadi Sukadi , Novarini Novarini
Published: February 2020

Kecepatan putaran pisau dalam proses perajangan memiliki pengaruh terhadap hasil perajangan keripik singkong. Penelitian ini bertujuan untuk mendapatkan kecepatan putaran pisau pada alat perajang singkong yang tepat agar ketebalan hasil perajangan singkong homogen dan didapatkan kapasitas maksimal. Penlitian ini menggunakan mesin hasil rancang berdimensi 600 mm x 455mm x 505 mm, beban pendorong umpan 900 gram di Bengkel Mesin Politeknik Jambi. Data yang diambil adalah ketebalan dan  waktu hasil perajangan dengan menggunakan  putaran pisau 310 rpm,363 rpm dan 390 rpm. Dari penelitian didapatkan ketebalan hasil perajangan  untuk semua beban homogen  yaitu 1 mm, sedangkan untuk putaan piasau 310 rpm, 363 rpm, 390 rpm, masing-masing kapasitas 123,28 kg/jam, 127,05 kg/jam dan 156,97kg/jam. Disimpulkan bahwa perajangan yang tepat guna mendapatkan hasil yang homogen dan kapasitas yang paling maksimal menggunakan putaran pisau 390 rpm.

Kata kunci: putaran pisau,kapasitas, perajangan singkong
STUDI PENGARUH PENGGUNAAN BATERAI PADA KARAKTERISTIK PEMBANGKITAN DAYA SOLAR CELL 50 WP
Authors: Intang Ambo
Published: February 2020

Energi matahari bisa langsung dikonversi menjadi energi listrik dengan teknologi photo voltaik yang dirangkai secara seri dan paralel dalam bentuk sel-sel semi konduktor sehingga disebut sel surya. Pada penelitian yang perlu ditingkatkan adalah tingkat efisiensi dari sel surya itu sendiri terhadap daya maksimum yang mampu dihasilkan dari sel surya yaitu dengan melakukan studi perbandingan tingkat daya yang mampu dihasilakan sel surya 50 WP tanpa baterai dan dengan beban baterai pada perubahan posisi sel surya terhadap posisi matahari per jam pada salah satu rumah warga di daerah Sungsang Sumatera Selatan selama 3 hari, dimana daerah tersebut terletak dimuara sungai musi. Tujuan dari penelitian ini adalah untuk mengetahui karakteristik daya harian yang dapat dihasilkan dan dimanfaatkan setelah pembebanan baterai. Efisisensi solar sel yang bisa dicapai pada penelitian ini masih rendah sehingga pengaruh flux matahari terhadap karakteristik pembangkitan daya listrik pada beban resistensi yang bervariasi tidak begitu terlihat terutama pada pengujian yang menggunakan beban baterai.

 Kata kunci : Fluk, Karakteristik Daya, Beban Baterai, Efisiensi
ANALISA PENGARUH PROSES TEMPERING TERHADAP KEKERASAN PADA BAJA AISI 4337 DENGAN VARIASI HOLDING TIME
Authors: Husni Tarmizi , Djunaidi Rita , Afriany Reny , Ferdiansyah Ferdiansyah
Published: February 2020

ABSTRAK

 

Dalam perkembangan industri yang sangat pesat sekarang ini, kebutuhan dan pemakaian material yang memiliki keuletan dan ketangguhan semakin banyak dipergunakan orang dalam rangka untuk menjadikan material dengan sifat yang keras dan getas.  Perlakuan panas (heat treatment) didefinisikan sebagai kegiatan pengolahan material dengan pemanasan dan pendinginan yang terkontrol untuk mendapatkan sifat-sifat tertentu. Guna mendapatkan keinginan tersebut suatu proses yang lazim dipergunakan adalah proses tempering.   Proses tempering memiliki tujuan untuk menghilangkan kegetasan dan menciptakan material menjadi ulet dan tangguh.   Penelitian ini bertujuan untuk mengetahui pengaruh lamanya waktu tunda pada saat proses tempering dengan lamanya waktu yang ditentukan yaitu dengan variasi waktu selama 1 jam, 2 jam dan 3 jam, proses ini dilakukan dengan temperatur 660 0C, kemudian dilanjutkan dengan pengujian terhadap kekerasan terhadap baja tersebut dengan menggunakan metode Vickers. Dalam proses penelitian ini dipergunakan bahan  berupa  baja  paduan  rendah  yang  mengandung  kadar  C = 0,30 – 0,38 %, Si = 0,10 – 0,350 %, dan Mn = 0,45 – 0,70 %. Kemudian bahan diberi perlakuan berupa pemanasan dengan suhu temper 6600C. Dalam proses pengujian ini spesimen diberlakukan pengujian adalah pada bagian tengah, pinggir dan bagian yang paling dekat dengan kulit. Dari hasil pengujian yang mempergunakan alat uji kekerasan berupa Vickers ternyata didapatkan bahwa kekerasan baja yang sangat signifikan terdapat pada spesimen dengan waktu tunda selama 3 (tiga) jam sebesar 22 %, sedangkan pada saat waktu tunda selama 1 (satu) dan 2 (dua) jam nilai kekerasan pada spesimen memberikan perubahan secara berkala dengan prosesntase yang sama besar.
ANALISIS PEMILIHAN PERUMAHAN SEDERHANA BAGI MASYARAKAT BERPENGHASILAN RENDAH DENGAN MENGGUNAKAN METODE AHP (Studi Kasus Perumahan Di Kecamatan Sematang Borang-Sako Palembang)
Authors: Noviarti Delli , Muhammad Farouk Muhammad
Published: February 2020

Rumah merupakan hal yang sangat penting dalam kehidupan manusia, dan termasuk pada kebutuhan pokok atau primer. Pemilihan rumah tinggal tentu sangat penting karena kemungkinan sebagian besar orang akan menempatinya dalam jangka waktu yang panjang. Umumnya ada 4 hal yang sangat penting dalam pemilihan suatu perumahan, yaitu masalah harga rumah, lokasi rumah terhadap sarana umum, type rumah, dan kondisi lingkungan. Keempat pertimbangan di atas merupakan hal yang paling sering dinilai konsumen calon pembeli perumahan dalam membeli perumahan. Ada beberapa cara penilaian dari bebrapa kriteria, salah satunya adalah dengan cara perhitungan dengan menggunakan metode Analytical Hierarchy Process (AHP), dimana semua hal dinilai berdasarakan normalisasi matriks yang digunakan dalam perhitungannya. Setiap calon konsumen akan dibagikan kuisioner, dimana calon pembeli yang berperan sebagai resonden akan memberikan penilaian mengenai pembandingan antrara nilai perumahan satu dengan perumahan yang lain yang berdekatan. Ketiga komplek perumahan yang dijadikan penelitian adalah perumahan dengan harga ekonomis yang diperuntukan bagi masyarakat yang berpenghasilan rendah (MBR) atau di bawah UMR kota Palembang.

 

Kata Kunci : Perumahan, AHP, MBR.
HUBUNGAN PEMBERIAN MP-ASI DAN USIA PERTAMA PEMBERIAN MP-ASI DENGAN KEJADIAN STUNTING PADA ANAK USIA 6-24 BULAN DI DESA LEYANGAN KECAMATAN UNGARAN TIMUR KABUPATEN SEMARANG
Authors: Virginia Any , Maryanto Sugeng , Anugrah Riva Mustika
Published: February 2020

Latar Belakang: Stunting merupakan masalah kurang gizi kronis yang disebabkan asupan gizi yang rendah. Beberapa penyebab stunting adalah pemberian MP ASI dan usia pertama pemberian MP-ASI yang tidak sesuai. 

Tujuan: Untuk mengetahui hubungan pemberian MP-ASI dan usia pertama pemberian MP-ASI dengan kejadian stunting pada anak usia 6-24 bulan

Metode Penelitian: Desain penelitian ini menggunakan pendekatan cross sectional. Sampel pada penelitian ini ditentukan dengan proportional random sampling sejumlah 78 responden. Data yang diambil adalah wawancara dengan kuisioner dan pengukuran antropometri menggunakan length board. Analisis data univariat menggunakan distribusi frekuensi dan analisis data bivariat menggunakan uji chi square dan risk estimate.

Hasil : Frekuensi pemberian MP ASI, tekstur MP ASI yang diberikan, jumlah pemberian MP ASI dan usia pertama pemberian MP ASI sesuai masing-masing 60,3%, 65,4%, 33,3% dan 53,8%.Terdapat hubungan frekuensi pemberian MP ASI (p value=0,002;OR=4,531), tekstur MP-ASI yang diberikan (p value=0,015; OR=3,304), jumlah pemberian MPASI (p value=0,020;OR=3,6), usia pertama pemberian MP-ASI (p value=0,002;OR=4,583) dengan stunting pada usia 6-24 bulan di Desa Leyangan Kecamatan Ungaran Timur Kabupaten Semarang.

Simpulan : Terdapat hubungan pemberian MP-ASI dan usia pertama pemberian MP-ASI dengan kejadian stunting pada anak usia 6-24 bulan di Desa Leyangan Kecamatan Ungaran Timur Kabupaten Semarang
Ejercicio de la acción penal e investigación preparatoria en el nuevo Código Procesal Penal
Authors: Basílico Ricardo Ángel
Published: February 2020

La reforma propuesta, aún no sancionada, del ordenamiento procesal penal de la Nación, presenta un salto exponencial de un sistema mixto o inquisitivo atenuado a otro netamente acusatorio, de acuerdo con las modernas tendencias adjetivas. El Ministerio Público Fiscal (MPF) adquiere un rol preponderante en la investigación de hechos ilícitos, que le otorgan herramientas legales para el desarrollo de su actuación a efectos de promover e impulsar la acción penal. De la misma manera, cuenta con criterios de disponibilidad de la acción penal y en ese sentido, se especifica en qué casos puede recurrirse a ellos, se establecen plazos perentorios, y se simplifica la investigación preparatoria, con el fin de lograr mayor agilidad y evitar las formalidades que pudieren burocratizar el procedimiento.
Experiments on Foamed Concrete for the Development of Building Blocks
Authors:   Research Scholar, Department of Civil Engineering, College of Engineering Trivandrum, Kerala, India., Jose* Sajan K , Soman Dr Mini ,   Professor, Department of Civil Engineering, College of Engineering Trivandrum, Kerala, India., Evangeline Y Dr Sheela ,   Professor, Department of Civil Engineering, College of Engineering Trivandrum, Kerala, India,
Published: February 2020

Foamed concrete is an innovative and versatile lightweight building material, which is a cement-based mortar consisting of at least 20% of its volume filled with air. Use of lightweight foamed concrete blocks with densities less than 1800 kg/m3 as infills will lead to the design of slender sections. Further, the thermal insulation properties of foamed concrete blocks made it more popular in construction industry. This paper discusses the development of foamed concrete building blocks for load bearing and non-load bearing structures. To make the mix more sustainable, the feasibility of fly ash as a partial replacement to cement is also explored. The variables considered for the production of foamed concrete are foam volume, water/powder (mix of cement and fly ash) ratio, fly ash content and sand/powder ratio. Analytical model is also developed for compressive strength and dry density of foamed concrete considering different variables and it is validated. Compressive strength is found to be increasing with the increase in dry density and with increase in fly ash content. Thermal conductivity is observed to be reduced by the addition of fly ash content.
An Ensemble Stacked four Layered Architectures for Image Retrieval
Authors:   Assosicate Professor, Dept. of Electronics, Bharati Vidyapeeth (Deemed to be University) College of Engineering, Pune,India., Salunkhe* Shweta , Gaikwad Dr. S.P. ,   Associate Professor, Dept. of Electronics, Bharati Vidyapeeth (Deemed to be University) College of Engineering, Pune,India., Gengaje Dr. S.R. ,   Professor, Dept. of Electronics, Bharati Vidyapeeth (Deemed to be University) College of Engineering, Pune,India.
Published: February 2020

It becomes possible to use large image server rapidly increasing. Content-Based Image Retrieval (CBIR) is an effective method for conducting its management and retrieval. This paper suggests the benefit of the image retrieval system based on content as well as innovative technologies. Compared to the shortcoming that the present system uses only a certain feature, this paper establishes a method that integrates color, texture and shape for image recovery and shows its additional benefit. Content Based image retrieval is a program that retrieves multiple images from an extensive collection of databases. The paper starts by explaining CBIR's fundamental aspects. Image Retrieval features such as color, texture and form will be addressed first. They address the similarity tests depending on which games are made and images are retrieved for a short time. The technique uses a four-layer structure that combines the characteristics of advancing inquiry and involves a combination of gabor and ripplet transition. Two image sets are obtained in the essential layer using the gabor and ripplet-based recovery techniques individually, as well as the top identified and critical images from the grapples of the top up-and-comer structure diagrams. The graph grapples use each individual part to recover six image frames from those in the image server as a demand for an increase in the next layer. The images throughout the six frames of images are analyzed for positive and negative information age in the third layer, and simpleMKL is correlated with acquiring expertise with proper examination subordinate variation loads to achieve the final result of image recovery. User interaction with the recovery system is critical for content-based image recovery, as dynamic request creation and adjustment can only be accomplished by including the user in the recovery process.