Forces on Temperature Cables in a Model Bin Under Restrained Conditions

Temperature cables restrained from lateral movement, were measured as a function of grain height, cable location and surface coating. For the restrained conditions, the cable forces were one to nine times those previously measured for unrestrained cables. The large load increase on the restrained cables is believed to be caused by the flow profile which existed at each of the three different cable locations. The flow profile at the center cable is predominantly vertical and the forces in the restrained condition resembled those in the unrestrained condition. For the two outer cable locations, both vertical and lateral force components exist because of the nature of the discharging grain at these two different locations. For the restrained condition, the largest forces occurred on the cable located at the middle position. For the unrestrained condition, the largest forces occurred on the cable located at the wall position. Surface coatings on the cable had an effect on the magnitude of the forces. Forces on vinyl coated cables were significantly larger than either the nylon or HDLE polyethylene coated cables in the restrained condition

Ethical Parenting

This article was originally published in the Self, Motivation & Virtue Project’s e-Newsletter 10, October 2017.N

Security of infantile attachment as assessed in the strange situation: its study and biological intrepretation

We study the Ainsworth \u27Strange Situation\u27 procedure to assess attachment between infant and parent, and intrepret individual variation in terms of modern human behavioral ecology ( sociobiology

Wideband TV white space transceiver design and implementation

For transceivers operating in television white space (TVWS), frequency agility and strict spectral mask fulfilments are vital. In the UK, TVWS covers a 320 MHz wide frequency band in the UHF range, and the aim of this paper is to present a wideband digital up- and down converter for this scenario. Sampling at radio frequency (RF), a two stage digital conversion is presented, which consists of a polyphase filter for implicit upsampling and decimation, and a filter bank-based multicarrier approach to resolve the 8MHz channels within the TVWS band. We demonstrate that the up- and down-conversion of 40 such channels is hardly more costly than that of a single channel. Appropriate filter design can satisfy the mandated spectral mask and control the reconstruction error. An FPGA implementation is discussed, capable of running the wideband transceiver on a single Virtex-7 device with sufficient word length to preserve the spectral mask requirements of the system

The double-edged sword: Emotional regulation for children at risk.

Abstract: The capacity to manage emotion is based on the growth of self-regulatory capacities in the early years, but is also affected by situational demands, influences from other people, and the child's goals for regulating emotion in a particular setting. For most children growing up in supportive contexts, the growth of emotional regulation is associated with enhanced psychosocial wellbeing and socioemotional competence. But for children who are at risk for the development of psychopathology owing to environmental stresses or intrinsic vulnerability (or their interaction), emotional regulation often entails inherent trade-offs that make nonoptimal strategies of managing emotion expectable, perhaps inevitable, in a context of difficult environmental demands and conflicting emotional goals. This analysis discusses how emotional regulation in children at risk may simultaneously foster both resiliency and vulnerability by considering how emotion is managed when children (a) are living with a parent who is depressed, (b) witness or experience domestic violence, or (c) are temperamentally inhibited when encountering novel challenges. In each case, the child,s efforts to manage emotion may simultaneously buffer against certain stresses while also enhancing the child's vulnerability to other risks and demands. This double-edged sword of emotional regulation in conditions of risk for children cautions against using "optimal" emotional regulation as an evaluative standard for such children or assuming that emotional regulation necessarily improves psychosocial well-being. It also suggests how the study of emotional regulation must consider the goals for regulating emotion and the contexts in which those goals are sought. Article: Emotions are complex phenomena. They entail constellations of physiological arousal, cognitive appraisal, and expressive activity that interact with situational demands and cultural rules to create subtly nuanced, richly variable subjective and behavioral events. Individual differences in emotion are also multifaceted, fashioned from the interaction of organismic (e.g., temperamental) characteristics, experiential history, construals of oneself and the situation, and the personal goals that shape emotional arousal and its expression. Consequently, although emotion has its roots in the legacy of biological adaptation, it also reflects some of the most sophisticated features of human social cognition, self-understanding, and strategic functioning. It should be no surprise, therefore, that emotional regulation is a complex phenomenon. Although strategies of emotional self-regulation originate in the young infant's simple efforts to cope with distress through self-soothing, they quickly become integrated into a network o

Packing Factors of Feed Products in Storage Structures

Experiments were conducted to measure the changes in bulk density of cracked corn, corn meal, soybean meal, cotton seed meal, and distillers dried grain (without solubles) when subjected to simulated overburden pressures. All materials were tested at two moisture content levels (approximately 8% and 12% w.b.) and seven pressures between 0 and 69 kPa (0 and 10 psi). A mathematical model was fitted to the data to predict the bulk density of each feed ingredient as a function of pressure and moisture content. These relationships were inserted into a previously developed computer model to predict ingredient packing within conventional storage structures based on Janssen\u27s equation as a function of feed product type, moisture content of the material, friction characteristics of the bin wall material, material height, and bin diameter. Cracked corn experienced the smallest amount of packing (approximately 4.3% in a bin with a diameter of 1.8 m and a height of 1.8 m), while distillers dried grain (without solubles) had approximately 8.1% packing in the same sized bin. With a bin diameter of 5.5 m and a height of 5.5 m, distillers dried grain (without solubles) and cracked corn had a packing factor of 13.3% and 6.8%, respectively. As moisture content increased the amount of packing increased for all materials. The data presented can be used for inventory control and management