The influence of vehicle aerodynamic and control response characteristics on driver-vehicle performance

The effects of changes in understeer, control sensitivity, and location of the lateral aerodynamic center of pressure (c.p.) of a typical passenger car on the driver's opinion and on the performance of the driver-vehicle system were studied in a moving-base driving simulator. Twelve subjects with no prior experience on the simulator and no special driving skills performed regulation tasks in the presence of both random and step wind gusts

Stepparenting and Schooling: Challenges, Reconstitutions, and Outsider Perceptions

This study examined the challenges stepparents face in schooling their high-school aged children. An analysis of how stepfamily formation can impact this process was also investigated. The sample included 13 families composed of one biological and one non-biological parent with at least one child between the ages of 14 and 18 who was currently attending high school. Stepparents were asked to share their experiences with other family members, the school, and the community as they related to the education of their stepchildren. The primary research focus was to identify difficulties and successes that stepparents encounter as they engage with schools and the schooling process. This study was able to support, challenge, and enhance previous research in five key areas: parenting style, family classification, member relationship development, differences in parent experiences, and cultural myths and stereotypes. New knowledge was gained in seven, narrowly focused areas including the impact of gender and biology on educational decision-making, difficulties stepparents face with educational technology, parenting restrictions and schooling, household stability and schooling, school perceptions of stepparenting, frustrations with school policy, and school expectations. Research into the relationship between stepparenting and schooling will hopefully encourage educational institutions to review their policies and practices in light of new realities as children grow up in increasingly diverse and complicated home settings

Observational insights on relationships between bicycle infrastructure and cyclist demographics, safety gear and bike use in Stavanger.

Norway has ambitious plans to reduce private car use, both for the benefits of reduced emissions and to mitigate their space consuming impacts on roadways and in cities. In conjunction with these plans, a high target has been set for increased bicycle mode share across Norway’s major urban regions. In Stavanger this has translated into increased investment in the facilitation of cycling for transport, including the expansion and improvement of bicycle infrastructure. Although, what cyclists perceive as safe and attractive bicycle infrastructure can vary widely, based on factors such as experience level, age and gender. One example is, that a stronger preference towards infrastructure with a greater level of separation between motorized vehicles and cyclists, has been found in both women and older adult cyclists. Through observations of cyclists at twelve locations and three different infrastructure typologies in Stavanger, this thesis seeks to provide insight on the possible influence of bicycle infrastructure on the proportion of cyclists of different genders and age groups. The proportion of cyclists which use safety gear, sport clothing and e-bikes are also a focus of the analysis. These variables are of relevance, as research has highlighted that cities which have safer and more separated infrastructure, often also have more normalized cycling cultures and cyclists which less often use safety gear and sport clothing. While e-bike users often have different infrastructure preference and choice than that of conventional bike users. The infrastructure typologies which are compared, have been selected on the basis of the degree that they are separated from motorized vehicles. Although other infrastructural and environmental characteristics are also considered, including traffic volume, traffic speed, measure of centrality and density. The findings do not validate the assumptions made between the infrastructure characteristics of degree of separation and the variables considered. Although strong correlations are found between measures of traffic intensity and centrality at observation points and the proportion of women cyclists using the infrastructure. While other findings may point to a moderating effect of e-bikes on the proportion of women cyclists observed at more highly trafficked locations. Additionally, correlations between safety gear and sport clothing use and centrality are found which could be potentially related to two distinct types of cyclists found in Stavanger

PEMBELAJARAN MENGANALISIS UNSUR PEMBANGUN PUISI DENGAN MENGGUNAKAN MEDIA CARD PROBLEM PADA SISWA KELAS X SMA Al-QONA’AH BALEENDAH TAHUN PELAJARAN 2017/2018

Puisi merupakan bentuk paling tua dari kesusastraan dalam sejarah peradaban manusia. puisi adalah salah satu karya sastra yang mempunyai nilai estetik (seni) yang tinggi dan berasal dari interpretasi pengalaman hidup manusia yang digubah dalam dalam wujud yang paling berkesan atau sebagai hasil imajinasi dan gagasan penyair yang dituangkan dalam bentuk tipografi yang spesifik. Media Card Problem adalah media pembelajaran yang digunakan guru dengan tujuan mengajak siswa menemukan konsep dan fakta melalui klasifikasi materi yang dibahas dalam pembelajaran dengan menggunakan kartu. Penulis tertarik melakukan penelitian mengenai pembelajaran menganalisis unsur pembangun puisi dengan menggunakan media card problem pada siswa kelas X SMA Al-Qona’ah Baleendah. Rumusan masalah yang penulis ajukan adalah; (1) Mampukah penulis merencanakan, melaksanakan, dan mengevaluasi pembelajaran menganalisis unsur pembangun puisi dengan menggunakan media card problem pada siswa kelas X SMA Al-Qona’ah Baleendah?; (2) Mampukah peserta didik melaksanakan pembelajaran menganalisis unsur pembangun puisi dengan tepat sesuai dengan unsur yang ada didalamnya?; (3) Efektifkah media card problem digunakan dalam pembelajaran menganalisis unsur pembangun puisi? Penelitian ini bertujuan untuk mengetahui kemampuan penulis, kemampuan peserta didik, dan keefektifan media card problem dalam pembelajaran menganalisis unsur pembangun puisi dengan menggunakan media card problem pada siswa kelas X SMA Al-Qona’ah Baleendah. Metode penelitian yang digunakan adalah metode eksperimen semu tipe one grup pretest-posttest design. Adapun hasilnya: (1) Penulis mampu merencanakan, melaksanakan, dan mengevaluasi pembelajaran menganalisis unsur pembangun puisi dengan menggunakan media card problem pada siswa kelas X SMA Al-Qona’ah Baleendah; (2) Siswa kelas X SMA Al-Qona’ah mampu menganalisis unsur pembangun puisi; (3) Media card problem efektif digunakan dalam pembelajaran menganalisis unsur pembangun puisi dengan menggunakan media card problem pada siswa kelas X SMA Al-Qona’ah Baleendah. Berdasarkan hasil penelitian ini, penulis menyimpulkan bahwa Penelitian yang penulis laksanakan berhasil. Kata Kunci: pembelajaran, teks puisi, media card problem

The application of integral performance criteria to the analysis of discrete maneuvers in a driving simulator

The influence of vehicle transient response characteristics on driver-vehicle performance in discrete maneuvers as measured by integral performance criteria was investigated. A group of eight ordinary drivers was presented with a series of eight vehicle transfer function configurations in a driving simulator. Performance in two discrete maneuvers was analyzed by means of integral performance criteria. Results are presented

Poboljšana Beckerova vakuumska mjerka

The possibility to optimize the Becker\u27s design of the friction vacuum gauge "REVA\u27\u27 has been investigated. The basic part of the gauge "REVA\u27\u27 is a metal ribbon stretched across magnetic field as a string (ß" gauge). The vibration of the ribbon is excited by an alternating current. The amplitude of the vibration is determined from the induced voltage and stabilized by varying the supply current according to the damping produced by gas molecules. This principle is analogical to that of the usual Pirani gauge control. The magnetic induction in the area of the string is for the sensitivity of the string gauge as important as the temperature of the heated filament is important for the sensitivity of the Pirani gauge. The shape of the magnetic field has been optimized according to the computation, using a finite element method. In order to achieve sufficient mechanical accuracy necessary for the optimal properties, a bifilar arrangement was chosen.Vibracije trake razapete u magnetskom polju uzbude se izmjeničnom strujom. Amplituda vibracija se određuje i stabilizira pomoću induciranog napona. Veće gušenje uzrokovano trenjem molekula pri višem tlaku zahtijeva jaču uzbudu i to služi za određivanje tlaka. Radi poboljšanja mehaničke izvedbe i smanjenja osjetljivosti na vanjsko magnetsko polje, odabran je bifilarni sustav