scholarly journals RESEARCH ON THE USE OF ECO-DRIVING IN CITY TRAFFIC

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Jacek Caban

As it is commonly known, during the operation of vehicles, their operational parameters change, related to the influence of working factors, the current road situation or wear processes of vehicle components. Currently, for many years there has been a discussion on improving the environmental properties of motor vehicles, taking into account technical, legal and operational factors. The article presents selected research results of a vehicle using the eco-driving technique in city traffic on the so-called routine route in a selected area of the city of Lublin in south-eastern Poland. The tests were carried out on a passenger car with a spark ignition engine powered by gasoline. The obtained test results focus on the influence of selected driving parameters, such as: average speed, driving time, mileage, road characteristics, number of stops, number of brakes. The conducted research indicates the possibility of using eco-driving in city traffic and gives positive results.

PEDIATRICS ◽  
1987 ◽  
Vol 79 (2) ◽  
pp. 203-205
Author(s):  
Mendel Tuchman ◽  
Margaret L. R. Ramnaraine ◽  
William G. Woods ◽  
William Krivit

During the last 3 years, random urine samples from 408 patients were tested for elevated homovanillic acid (HVA) and vanillylmandelic acid (VMA) levels to rule out the diagnosis of neuroblastoma. Thirty-seven of these patients had elevated HVA and/or VMA levels, and neuroblastoma was subsequently diagnosed. In three additional patients with negative test results (normal HVA and VMA levels), tumors were subsequently diagnosed (false-negative rate of 7.5%). Ten percent of the patients with neuroblastoma had normal HVA and 27.5% had normal VMA levels at the time of diagnosis. Only one patient (2.5%) with neuroblastoma had elevated VMA levels in the presence of normal HVA levels. More than 60% of the patients with neuroblastoma had urinary HVA and/or VMA levels higher than twice the upper limit of normal. No false-positive results were encountered. Age and stage distributions of the patients are shown, and the significance of the results is discussed.


Author(s):  
Stephanie L. Shaver ◽  
Daniel S. Foy ◽  
Todd D. Carter

Abstract OBJECTIVE To describe signalment, clinical signs, serologic test results, treatment, and outcome of dogs with Coccidioides osteomyelitis (COM) and to compare those findings with findings for dogs with osteosarcoma (OSA). ANIMALS 14 dogs with COM and 16 dogs with OSA. PROCEDURES Data were retrospectively gathered from electronic medical records. RESULTS Dogs with COM were younger and weighed less than dogs with OSA. Six dogs with COM had appendicular lesions, 5 had axial lesions, and 3 had both appendicular and axial lesions; 9 had monostotic disease, and 5 had polyostotic disease. Axial lesions and nonadjacent polyostotic disease were more common in dogs with COM than in dogs with OSA, but radiographic appearance was not different between the 2 groups. Median IgG titer at diagnosis of COM was 1:48 and was significantly decreased after 6 and 12 months of treatment. Percentage of dogs with COM that had clinical signs was significantly decreased after 1, 3, 6, and 12 months of treatment. One year after initiation of treatment, 9 of 9 dogs were still receiving fluconazole and 8 of 9 dogs had positive results for serum IgG titer testing. CLINICAL RELEVANCE Dogs with COM typically had a rapid improvement in clinical signs after initiating treatment with fluconazole but required long-term antifungal treatment. Dogs with COM differed from dogs with OSA, but radiographic features had a great degree of overlap between groups, confounding the ability to make a diagnosis on the basis of diagnostic imaging alone.


2019 ◽  
Vol 254 ◽  
pp. 03007 ◽  
Author(s):  
Vladimir Sakhno ◽  
Juraj Gerlici ◽  
Viktor Poliakov ◽  
Alexandr Kravchenko ◽  
Oleg Omelnitcky ◽  
...  

The peculiarities of organization and perspectives of mass passenger transportation in the city and beyond are considered with the use of "Bus Rapid Transport" (BRT) or Metrobus. Different aspects of study of motor vehicles (MV) controllability and stability are analyzed. It is substantiated that it is sufficient to consider the potential stability of the MV itself, in order to guarantee the stability of the "driver MV" system with a large reserve. A mathematical model of a three-axle bus train consisting of a bus and two trains (metrobus) is developed and the factors influencing the critical speed as the main index of the stability of its movement are determined. It is established that the increase of the critical speed of the metrobus can be achieved by increasing the base of the bus, the first and the second trailer, as well as the mass of the bus and the coefficients of resistance of the drive wheels of the bus driving axle and the trailers axles. At the same time, increasing the distance from the mass center to the bus rear axle, increasing the distance from the mass center to the point of the coupling of the bus with the first trailer, increasing the mass of trailers and the resistance of the resistance of the wheel drive of the bus axis lead to a decrease in the critical speed of the metrobus. This must be taken into account both when designing metrobuses, and when operating them.


2022 ◽  
Vol 12 (4) ◽  
pp. 400-415
Author(s):  
S. V. Mkhitaryan ◽  
Zh. B. Musatova ◽  
T. V. Murtuzalieva ◽  
G. S. Timokhina ◽  
I. P. Shirochenskaya

Purpose: to present the author's methodology and the test results for calculating integral indicators of transport accessibility on the basis of weighted normalized private indicators for three housing estates in Moscow.Methods: the study is based on the application of methods for collecting factual material, its processing, systematic, comparative historical and structural-functional analysis, which were supplemented by multivariate analysis of secondary information using content analysis of existing methods for calculating indicators of transport accessibility of capital objects. The results and conclusions of the research are based on the use of the author's methodology for calculating integral indicators of transport accessibility based on weighted normalized private indicators for three housing estates in Moscow. The analysis of a possible set of criteria for assessing transport accessibility of housing estates in Moscow metropolis was carried out on the basis of the use of a geographic information system database GIS NextGIS QGIS.Results: a review of methodological approaches to the calculation of objective quantitative indicators characterizing the transport accessibility of capital objects is carried out; the author's methodology for calculating the integral indicators of the transport accessibility of residential complexes in Moscow is presented and tested on the basis of weighted normalized private criteria / indicators. The use of the authors’ methodology for calculating integral indicators of transport accessibility based on weighted normalized private criteria / indicators made it possible to calculate the values of indicators of transport accessibility for three housing estates in Moscow, calculate an integrated score for a set of transport accessibility criteria for each housing estate, to give a comparative quantitative assessment of their transport accessibility, to conduct a rating of housing estates in terms of their transport accessibility.Conclusions and Relevance: the presented results of approbation of the author's methodology for calculating the integral indicators of transport accessibility for housing estates in Moscow allow to conduct a comparative and dynamic analysis of housing estates (or larger units) transport accessibility. The results of such an analysis can be applied in order to develop programs for transport infrastructure development of the megacity as a whole, its certain districts and city parts, as well as to assess such programs efciency. The authors see the directions for future research in the defnition and calculation of indicators based on the city dwellers perception of the transport accessibility


2020 ◽  
Vol 3 (2) ◽  
pp. 58-63
Author(s):  
Fitriyanti Fitriyanti ◽  
Yusmalina Yusmalina ◽  
Rahmi Muthia

Sangkareho (Callicarpa longifolia Lam.) is used traditionally by one of Kalimantan's indigenous tribes, the Dayak Tunjung tribe as a medicine for colds and inflammation, where the plant parts used are the roots. Considering its very potential prospects, research aimed at providing a scientific basis for plant pharmacognostic data needs to be carried out with qualitative methods. The qualitative examination is done by several methods including test identification of organoleptic, macroscopic, microscopic, and chemical compounds. Organoleptic test results showed that the roots have a light brown color, bitter and slightly spicy, and a rather pungent odor. Microscopic test results showed sangkareho root has a length of � 90 cm; width of � 1 cm; and for the form of a spear with a ride root system. Microscopic observations are found in the form of epidermal cells, exodermis, cortex, endodermis, bearing files, calcium oxalate crystals, and stone cells. The identification of chemical compounds showed positive results against alkaloids, flavonoids, saponins, and triterpenoids. The thin-layer chromatography profile shows four separate stains with eluent ethyl acetate : methanol : water in a ratio of 8 : 2 : 1, respectively.


2018 ◽  
Vol 7 (3) ◽  
pp. 298-304
Author(s):  
Reefa Qudsiya ◽  
Lisdiana Lisdiana ◽  
Nugrahaningsih WH

Nervous system teaching materials available in schools do not contain scientific-related content as mandated by the 2013 curriculum. In addition, teaching materials also do not contain student character reinforcement content. The purpose of this study is to develop “Nervous Problem Based Module with a  Conservation Character” as a nervous system learning supplement. This type of research is Research and Development (R&D) using ten steps, namely identification of potential and problems, data collection, product design, product design validation, product design revisions, small scale trials, product revision I, large scale trials, product revision II, and final products. The research subjects were students of class XI of SMA N 1 Bae Kudus. Nervous Problem Based Module with a  Conservation Character  tested the feasibility, readability, and effectiveness. Feasibility tests obtained very valid results. Readability test results were very valid. Test effectiveness by applying  Nervous Problem Based Module with a  Conservation Character in learning, obtained effective results and can be used in learning. The insertion of the conservation character reinforcement in the module gives positive results on the character of students. It can be concluded that “Nervous Problem Based Module with a Conservation Character” is decent and effectively applied in the nervous system learning.


2021 ◽  
Vol 3 (1) ◽  
pp. 134-148
Author(s):  
Mardi Yudhi Putra ◽  
Nadya Safitri ◽  
Nofia Filda Fauziah ◽  
Ahmad Safei ◽  
Rayhan Wahyudin Ratu Lolly

Penguasaan terhadap Teknologi Informasi dan Komunikasi perlu diajarkan pada semua tingkatan agar suatu proses dan kegiatan dapat dilakukan dengan lebih cepat, mudah dan efisien. Para siswa kelas XII SMK Taruna Bangsa dituntut untuk memiliki kompetensi yang dapat dikuasai sebelum lulus sekolah. Salah satunya kompetensi adalah dapat membuat website atau aplikasi berbasis web. Disamping itu, kepala program jurusan RPL SMK Taruna Bangsa menyampaikan perlu adanya pendalaman dan pengetahuan lebih dalam pembuatan website selain yang dibekali di sekolah seperti mendesain website front end. Oleh karena itu perlu dilakukan pelatihan mendesain website menggunakan framework Bootstrap. Pelaksanaan Pengabdian kepada Masyarakat (PkM) ini dijalankan sesuai dengan wujud implementasi MoU yang telah dilakukan antara SMK Taruna Bangsa dengan Universitas Bina Insani. Pelaksanaan kegiatan pada masa pandemi Covid-19 dilakukan secara online melalui media konferensi www.zoom.us dan www.youtube.com. Kegiatan ini diikuti oleh 78 peserta dengan hasil akhir memberikan hasil yang positif, ditunjukkan pada umpan balik peserta terhadap materi yaitu pada nilai 4 (Baik) sebesar 32,1% dan nilai 5 (Sangat Baik) sebesar 60.7%. Berdasarkan paparan tersebut kegiatan PkM ini telah memberikan kemampuan dan penguasaan terhadap siswa dalam mendesain website dan memiliki bekal dalam mengimplementasikan pada bidang Teknologi informasi yang pada akhirnya mendorong smart education kota Bekasi. Kata kunci—bootstrap, pengabdian kepada masyarakat, website Mastery of Information and Communication Technology needs to be taught at all levels so that processes and activities can be carried out more quickly, easily and efficiently. Class XII students of SMK Taruna Bangsa are required to have competencies that can be mastered before graduating from school. One of the competencies is being able to create a website or web-based application. In addition, the head of the RPL department program at SMK Taruna Bangsa said that there is a need for more in-depth and knowledge in making websites other than those provided in schools such as designing front end websites. Therefore, training in designing websites using the Bootstrap framework is necessary. The implementation of Community Service (PkM) is carried out in accordance with the implementation of the MoU that has been carried out between SMK Taruna Bangsa and Bina Insani University. The implementation of activities during the Covid-19 pandemic was carried out online through the media conference www.zoom.us and www.youtube.com. This activity was attended by 78 participants with the final result giving positive results, shown in the participants' feedback on the material, namely a value of 4 (Good) of 32.1% and a value of 5 (Very Good) of 60.7%. Based on the explanation, this PkM activity has given students the ability and mastery in designing websites and has provisions in implementing it in the field of information technology which ultimately encourages smart education in the city of Bekasi. Keywords— bootstrap, community service, website,


2021 ◽  
Vol 6 (1) ◽  
pp. 20-36
Author(s):  
Dwi Hastuti ◽  
Lia Shafira Arlianty ◽  
Megawati Simanjuntak

Psychosocial development is a developmental stage that every child will pass. This study aimed to analyze the influence of family and child characteristics, child value, social support, mother's involvement in psychosocial stimulation in boys and girls. The research design that was used in this study was a cross-sectional study. Site selection was chosen purposively, namely in the city of Medan. Research locations were in two villages, namely Kota Maksum, Medan Labuhan Subdistrict and Kota Besar Village, Medan Area District. The sample pulling technique uses simple random sampling with a sample of mothers who have children aged 2-3 years and come from a complete family of 150 people. Respondents interviewed with the questionnaire were mothers. Correlation test results showed a significant positive relationship between maternal age, children's values, dimensions of psychological value and dimensions of economic value, social support, dimensions of information support and dimensions of reward support, and mothers' role in care with psychosocial stimulation.


2021 ◽  
Vol 14 (33) ◽  
pp. e16475
Author(s):  
Renata Pereira de Lacerda ◽  
Rosebelly Nunes Marques

This study presents and discusses the actions for the implementation of a project. The project was started in a school unit in the State Education Network in the state of Sao Paulo in the Integral Education [PEI], located in the city of Piracicaba – SP, as a way to guarantee the expansion of democratic management within the school, The objective of this work was to present and discuss the relationship between the constitution of the project in a comprehensive way, with the results of the actions that have already been carried out at the school. The school’s documents were analyzed, as well as the legal documents and the relevant bibliography. These all have a purpose to theoretically support the project, giving it a well-founded basis for its implementation. The purpose is to expand the democratic rights within the unit to allow Class Assemblies, corroborating with the democratic management, which will provide the school with a path towards its own identity. Along with the studied literature, the school’s internal documents and the results of the actions already carried out at the school, all validate the project’s viability. There is legal support for its implementation by meeting these proposals. Positive results corroborated the continuity of the successful practices by the analysis of data and the actions already carried out at the school which gives the full implementation of the project.


Author(s):  
Caio H Rufino ◽  
Waldyr LR Gallo ◽  
Janito V Ferreira

By evaluating combustion duration and flame development, it is possible to evaluate the effects of utilizing a new type of fuel. This allows for optimization of the operational parameters such as the ignition timing, air–fuel ratio, and throttle opening with respect to efficiency, knock, emissions, and performance. In this work, the combustion of a Brazilian hydrous ethanol fuel was evaluated in a commercial flexfuel engine. Investigations were conducted by performing a heat release analysis of the experimental data and providing combustion characteristics. The experimental design comprised of variations in engine speed, load, ignition timing, and air–fuel ratio under lean condition. The results indicated the relationship between the engine parameters and combustion characteristics under a wide range of operational conditions, and identified the relationship between the physical characteristics of the fuels and their combustion in the commercial engine. For high engine speed, lean combustion presented a similar duration to the stoichiometric combustion duration. When comparing the combustion characteristics obtained for the hydrous ethanol with gasoline combustion, the main differences noted were reduced sensitivity to detonation and a shorter duration of combustion, although the temperature at the start of combustion was lower for ethanol. In addition to shorter combustion duration, ethanol presented a lower value for the Wiebe exponent. The results obtained from the combustion duration values and Wiebe function parameters enable the composition of a set of data required for a simplified combustion simulation.


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