The relationship between growth rate and environmental space is an unresolved issue in teleosts. While it is known from aquaculture studies that stocking density has a negative relationship to growth, the underlying mechanisms have not been elucidated, primarily because the growth rate of populations rather than individual fish were the subject of all previous studies. Here we investigate this ...

Analytical studies are carried out to investigate groundwater head changes in a coastal aquifer system in response to tidal fluctuations. The system consists of an unconfined aquifer, a semi-confined aquifer and a semi-permeable confining unit between them. An exact analytical solution is derived to investigate the influences of both leakage and storage of the semi-permeable layer on the tide-i...

Introduction It is already known,1)–3) that SU(N) QCD can lower the energy of its vacuum with a monopole background field along the Abelian directions, where the Abelian components are equal in magnitude but orthogonal in real space.2), 3) This orthogonality, while of no special consequence in SU(3) QCD in three space dimensions, does have consequences when the number of Abelian directions is g...

Introduction It is already known,1)–3) that SU(N) QCD can lower the energy of its vacuum with a monopole background field along the Abelian directions, where the Abelian components are equal in magnitude but orthogonal in real space.2), 3) This orthogonality, while of no special consequence in SU(3) QCD in three space dimensions, does have consequences when the number of Abelian directions is g...

Altogether 327 valleys and their 314 cross-sectional profiles were analyzed on Mars, including width, depth, length, eroded volume, drainage and spatial density, as well as the network structure. According to this systematic analysis, five possible drainage network types were identified such as (a) small valleys, (b) integrated small valleys, (c) individual, medium-sized valleys, (d) unconfined...

There are three types of monopole in gauge theories with fundamental matter and N = 2 supersymmetry broken by a superpotential. There are unconfined 0-monopoles and also 1 and 2-monopoles confined respectively by one or two vortices transforming under distinct components of the unbroken gauge group. If a Fayet-Iliopoulos term is added then there are only 2-monopoles. Monopoles transform in the ...

One research field in Leipzig deals with the design of high strength lightweight-aggregate concretes (HSLWAC). Due to the huge waveband of this concretes with all possible combinations of lightweight-aggregates and mortar matrix the formulation of general rules is difficult. Therefore both components lightweight-aggregates and mortar matrix will be investigated in detail in order to achieve a d...

OSHA’s permit-required confined space standard (PRCS) went into effect April 15, 1993. This standard (1910.146), arguably the second most difficult of OSHA’s standards to comprehend, second only to recordkeeping (1904), likely is the hardest with which to comply. After 18 years, most employers, including many with sound safety systems, are still not in compliance, based on the author’s experien...