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RISS 인기검색어
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- 저자 : Happe, B. (검색결과 2 건)
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Designing organisms with new metabolic properties
Pieper, D.H.,Lehning, A.,Beil, S.,Blasco, R.,Mallavarapu, M.,Hofer, B.,Seeger, M.,Jakobs, B.,Erb, R.,Wittich, R.-M.,Happe, B.,Timmis, K.N. 숙명여자대학교 환경과학연구센터 1996 환경과학논문집 Vol.4 No.-
During the past decades enormous quantities of industrial chemicals have been released into the envionment. Although most of these compounds are readily biodegraded, some-mainly those having novel structural elements or substituents not or rarely found in natrue (xenobiotics)-are only catabolized slowly and thus tend to persist in the environment, Chloroaromatic compounds represent particularly hazardous pollutants. They are and have been used as pesticides, solvents, plasticizers and dielectric fluids, and a number of highly toxic compounds such as chlorinated dioxins have been formed as by-products of industrial processes and during incineration of organic wastes. The existence of many wate storage sites containing toxic chemicals and large scale, though now diminishing, chronic pollution from current industrial practices, necessitate both the termination of production of toxic and persistent industrial chemical, and the more efficient exploitation of remediation technologies, in order to diminish the consequences of existing and ongoing environmental pollution.
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HAPTIC STEERING SUPPORT FOR DRIVING NEAR THE VEHICLE’S HANDLING LIMITS; SKID-PAD CASE
D. I. KATZOURAKIS,E. VELENIS,E. HOLWEG,R. HAPPEE 한국자동차공학회 2014 International journal of automotive technology Vol.15 No.1
Current vehicle dynamic control systems from simple yaw control to high-end active steering support systemsare designed to primarily actuate on the vehicle itself, rather than stimulate the driver to adapt his/her inputs for better vehiclecontrol. The driver though dictates the vehicle’s motion, and centralizing him/her in the control loop is hypothesized topromote safety and driving pleasure. Exploring the above statement, the goal of this study is to develop and evaluate a hapticsteering support when driving near the vehicle’s handling limits (Haptic Support Near the Limits; HSNL). The support aimsto promote the driver’s perception of the vehicle’s behaviour and handling capacity (the vehicle’s internal model) by providinghaptic (torque) cues on the steering wheel. The HSNL has been evaluated in (a) driving simulator tests and (b) tests with avehicle (Opel Astra G/B) equipped with a variable steering feedback torque system. Drivers attempted to achieve maximumvelocity while trying to retain control in a circular skid-pad. In the simulator (a) 25 subjects drove a vehicle modelparameterised as the Astra on a dry skid-pad while in (b) 17 subjects drove the real Astra on a wet skid-pad. Both the drivingsimulator and the real vehicle tests led to the conclusion that the HSNL assisted subjects to drive closer to the designated pathwhile achieving effectively the same speed. With the HSNL the drivers operated the tires in smaller slip angles and henceavoided saturation of the front wheels’ lateral forces and excessive understeer. Finally, the HSNL reduced their mental andphysical demand.
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