An articulated leg for the use in a running robot is presented. It is driven by series elastic actuation with a highly compliant spring at the knee joint to exploit periodic energy storage and passively support a running motion. The spring is connected with the knee motor by a cable pulley system, which allows the advantageous placement of the motor in the hip joint and enables us to use a comp...

A year-round grazing system for springand fall-calving cows was developed to compare animal production and performance, hay production and feeding, winter forage composition changes, and summer pasture yield and nutrient composition to that from a conventional, or minimal land system. Systems compared forage from smooth bromegrass-orchardgrass-birdsfoot trefoil pastures for both systems in the ...

One of the goals of organic crop production is to grow species which combinetraditional pro-healthy properties, innovative cultivation practices and harmonywith the environment. Among the ancient species the spring spelt is especiallypredisposed for organic farming. In comparison with common wheat spring spelthas a relatively short research history on physiological analysis of growth anddevelop...

The suspension system is used to observe the vibrations from shock loads due to irregularities of the road surface. It is perform its function without impairing the stability, steering (or) general handling of the vehicle. Generally for light vehicles, coil springs are used as suspension system. A spring is an elastic object used to store mechanical energy and it can be twist, pulled (or) stret...

(*) Manuscrit re,u Ie lor octobre 1960. (**) Douglas Aircraft Co., Inc., EI Segundo, California (U.S.A.). The first-named author is also Professor of Mathematics at Pepperdine College, Los Angeles. California. tial factors may be demonstrated. Later the students are shown how to apply the principles they have learned to more complex systems. The spring-mass system can be seen in Fig. 2. The upp...

Results, and Innovations in Nutrition Globally (SPRING) project that use secondary analysis of Demographic and Health Survey data to determine barriers to distribution and consumption of iron–folic acid (IFA) through antenatal care systems in a range of countries. This brief describes key characteristics of and barriers to successful IFA supplementation in Senegal. SPRING NUTRITION TECHNICAL BRIEF

We developed a visual system generator called “Rainbow” which can handle layout constraints. The system can interactively layout figures while parsing them and make the parsed figures more understandable. Rainbow can deal with “soft layout constraints.” Soft layout constraints automatically layout entire figures by using graph drawing algorithms. Soft layout constraints are more flexible than c...

INTRODUCTION Running, hopping and trotting animals can be modeled as spring-mass systems in which the mechanical behavior of the musculoskeletal system is represented as a leg spring. The stiffness of the leg spring is the primary determinant of the dynamics of running. Biomechanical studies have revealed that larger mammalian species have stiffer legs (Farley et al., 1993). Similarly, large ad...

An improved mass-spring model for a dripping faucet is presented. The model is constructed based on the numerical results which we recently obtained from fluid dynamical calculations. Both the fluid dynamical calculations and the present mass-spring model exhibit a variety of complex behavior including transition to chaos in good agreement with experiments. Further, the mass-spring model reveal...

We present a mass-spring system for interactive simulation of deformable bodies. For the amount of springs we target, numerical time integration of spring displacements needs to be accelerated and the transfer of displaced point positions for rendering must be avoided. To fulfill these requirements, we exploit features of recent graphics accelerators to simulate spring elongation and compressio...