Investigation of gain enhancement of electrically small antennas using double-negative, single-negative, and double-positive materials In this paper, it is shown that a double-negative or a mu-negative shell can be used to achieve a very high gain for an electrically small loop. It is also.....
Part One presents the theoretical, conceptual, and methodological background of the sociological and discursive debate about LDs. The social-constructivist model used in an analysis of the two categories is proposed as an alternative to the clinical–medical model. The definitions of LDs and cultural...
aThe cloud-to-ground lightning flash can lower positive (+CG) or negative (-CG) charge, depending on the source of the flash. This can be determined by the polarity of the stroke’s current. Characteristics of negative and positive cloud-to ground flash are summarized as shown in Table 1...
Compared to the CG (n = 33), the YG (n = 42) showed significant improvements in positive affect (p = 0.007), emotional function (p = 0.001), and cognitive function (p = 0.03), and a decrease in negative affect (p < 0.001) assessed by EORTC QLQ C30 functional scales and the...
Background: There is little research regarding specific work features that might cause chronic stress and burnout among primary care pediatricians. The aim of the present study was first, to assess specific negative and positive characteristics of the job that might be related to burnout; and second...
Atmospheric sciences A comparison of positive and negative cloud-to-ground lightning dominant storms in three regions of the United States COLORADO STATE UNIVERSITY Steven Rutledge AndersonAmanda R. SA statistical framework for analyzing storm data, called CLEAR (Colorado State University Lightning, ...
theinductorwillreverseitspolarityinordertomaintainthepeakswitchcurrent.Thusthefreewheelingdiodewillbeforwardbiased,andtheenergystoredintheinductancewillbetransferredtotheloadaswellasthecapacitor.(PleaseseeswitchingwaveformsFigure3andFigure4).SincethenodeVAatthe″topend″oftheinductorisnegativewithrespecttoground,the...
[translate] apositive-negative. 正面消极。[translate]
To examine whether having self-related personal goals, or rather whether positive or negative appraisal of them, is associated with subjective well-being, 311 students were asked to complete the Personal Project Analysis (PPA) and revised Beck Depression Inventory, first at the beginning of their ...
Purpose – The purpose of this paper is to examine the impact on organizations of both negative deviant workplace behaviors – those that violate organizational norms, policies or internal rules – and positive deviant workplace behaviors – those that honorably violate them. The reasons why people...