1,476 research outputs found
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No full textNot AvailableThe causal organisms of yellow mould diseases encountered in seasonal button mushroom farms were
found to be , and . Although all these Myceliophthora lutea Sepedonium chrysopermum S. maheshwarianum
yellow mould causing organisms were found to reduce the mushroom yield, but was the most M. lutea
devastating fungus causing complete crop failure depending upon the stages of the infection. When M. lutea
was inoculated at spawning it caused 100 crop loss whereas if inoculated at casing it caused 42 per cent per
cent loss. In case of and they caused 75-80 crop losses, at S. chrysopermum S. maheshwarianum per cent
spawning and 27 at casing. Under seasonal conditions, casing is normally chemically pasteurized per cent
and causes the problems of fungicidal residue in the mushrooms. As an alternative, solarised casing soil
showed drastically reduced fungal counts in comparison to control and also the dominant fungi encountered
in solarised casing were mainly thermotolarent. It was also observed that addition of 0.5 phosphate per cent
gave 98 increase in yield in comparison to untreated inoculated control and 33 over per cent per cent
untreated un-inoculated control. It was observed that the disease could not establish in any of the treated
bags. It was also found that maximum growth inhibition was of test fungi were attained with extract of
Cannabis sativa A. bisporus without affecting the growth of when added in malt extract agar medium @ 5
per cent. It can be concluded from the present investigations that to minimize that cost involved in steam
pasteurization, solarisation of casing soil may be a good alternative along with addition of P O (0.5%) in 2 5
compost to prevent crop losses due to yellow mould syndrome. Moreover, Cannabis sativa also showed
anti-fungal activity against yellow mould pathogens, therefore they may be recommended to the mushroom
growers for the management of yellow mould syndrome in white button mushroom.Not Availabl
Dual VP Classes
No full textWe consider the complexity class ACC1 and related families of arithmetic circuits. We prove a variety of collapse results, showing several settings in which no loss of computational power results if fan-in of gates is severely restricted, as well as presenting a natural class of arithmetic circuits in which no expressive power is lost by severely restricting the algebraic degree of the circuits. We draw attention to the strong connections that exist between ACC1 and VP, via connections to the classes CC1[m] for various m. These results tend to support a conjecture regarding the computational power of the complexity class VP over finite algebras, and they also highlight the significance of a class of arithmetic circuits that is in some sense dual to VP. In particular, these dual-VP classes provide new characterizations of ACC1 and TC1 in terms of circuits of semiunbounded fan-in. As a corollary, we show that ACCi = CCi for all i 1.The earlier conference paper version of this article is available from the publisher at http://link.springer.com/book/10.1007%2F978-3-662-48054-0 and also from the Rutgers institutional repository: http://dx.doi.org/doi:10.7282/T3KK9DN4.Peer reviewe
A stacking approach to estimate VP/VS from receiver functions
No full textThis note documents an approach to process a suite of receiver function (RF) traces in order to identify discontinuity-generated P-to-S (Ps) conversions based on the timing of their associated reverberations. It is inspired by Kumar and Bostock's method to estimate absolute P wave speeds. From RF estimates recorded in the typical source range for direct P arrivals, the method yields P to S wave speed ratios (VP/VS) without knowledge of crustal VP or thickness
Exploring VP/vP Preposing in Multiple Nominative Constructions mm
No full textThis study investigates VP/vP preposing within the context of Multiple
Nominative Constructions (MNCs). In Korean, a verbal constituent can be
moved to the sentence-initial position. However, when an unbound trace is
contained within the preposed constituent, it violates the Proper Binding
Condition (PBC), rendering the sentence ungrammatical. The PBC effect has
non-trivial implications for the structure of VP/vP. This paper investigates
VP/vP preposing across diverse categories of MNCs in Korean to illuminate
their structural characteristics. MNCs occur in various environments, broadly
classified into Major Subject constructions and Nominative Object constructions
(Kuno 1973). Previous literature classifies the two types of MNCs into several
sub-types. An important question is concerned with the structure of the various
MNCs. This paper explores whether previous analyses can adequately explain
the (im)possibility of VP/vP preposing within each sub-type of MNCs. We
show that the (im)possibility of VP/vP preposing in MNCs results from their
unique structure, in combination with the PBC effect and many other syntactic
principles.We thank the anonymous reviewers of this journal for many useful comments. This work was supported by the 2021 Yeungnam University Research Grant (Corresponding Author)
If VNP Is Hard, Then so Are Equations for It
No full textAssuming that the Permanent polynomial requires algebraic circuits of exponential size, we show that the class VNP does not have efficiently computable equations. In other words, any nonzero polynomial that vanishes on the coefficient vectors of all polynomials in the class VNP requires algebraic circuits of super-polynomial size.
In a recent work of Chatterjee, Kumar, Ramya, Saptharishi and Tengse (FOCS 2020), it was shown that the subclasses of VP and VNP consisting of polynomials with bounded integer coefficients do have equations with small algebraic circuits. Their work left open the possibility that these results could perhaps be extended to all of VP or VNP. The results in this paper show that assuming the hardness of Permanent, at least for VNP, allowing polynomials with large coefficients does indeed incur a significant blow up in the circuit complexity of equations
An Optimality-Theoretic Analysis of Scandinavian Object Shift and Remnant VP-Topicalisation
No full textHolmberg (1997, 1999) assumes that Holmberg's generalisation (HG) is derivational, prohibiting Object Shift (OS) across an intervening non-adverbial element at any point in the derivation. Counterexamples to this hypothesis are given in Fox & Pesetsky (2005) which show that remnant VP-topicalisations are possible in Scandinavian as long as the VP-internal order relations are maintained. Extending the empirical basis concerning remnant VP-topicalisations, we argue that HG and the restrictions on object stranding result from the same, more general condition on order preservation. Considering this condition to be violable and to interact with various constraints on movement in an Optimality-theoretic fashion, we suggest an account for various asymmetries in the interaction between remnant VP-topicalisations and both OS and other movement operations (especially subject raising) as to their order preserving characteristics and stranding abilities.The definitive version of this paper is published in Linguistics in Potsdam 25 (2006).Engels, E., Vikner, S. (2006). An Optimality-Theoretic Analysis of Scandinavian Object Shift and Remnant VP-Topicalisation. In H. Broekhuis & R. Vogel (Eds), Linguistics in Potsdam 25. Optimality Theory and Minimalism: A possible Convergence? Potsdam : Universitätsverlag PotsdamISBN: 9783939469544 (published book
Dynamic properties of sand from dry to fully saturated states
No full textBy using bender and extender elements test, the velocities of the primary and shear waves, Vp and Vs respectively, were measured for a sandy material by gradually varying the degree of saturation, Sr, between the dry and fully saturated states. The effect on the results of varying the relative density and effective confining pressure was also studied. The measurements clearly reveal that for a certain optimum Sr, which is around 0·7–0·9% for the chosen sand, the value of the shear modulus G reaches a maximum value, whereas the corresponding Poisson's ratio ν attains a minimum value. The values of the shear modulus corresponding to Sr ≈ 0% and Sr = 100% tend towards the same value. For values of Skempton's B parameter greater than 0·99, the values of Vp and ν rise very sharply to those of water. The predictions from Biot's theory with respect to the variation of Vp with Sr match well with the measured experimental data
Dual VP Classes
No full textWe consider the complexity class ACC^1 and related families of arithmetic circuits. We prove a variety of collapse results, showing several settings in which no loss of computational power results if fan-in of gates is severely restricted, as well as presenting a natural class of arithmetic circuits in which no expressive power is lost by severely restricting the algebraic degree of the circuits. These results tend to support a conjecture regarding the computational power of the complexity class VP over finite algebras, and they also highlight the significance of a class of arithmetic circuits that is in some sense dual to VP.Presented at the 40th International Symposium on Mathematical Foundations of Computer Science (MFCS '15).Published as a chapter in: Mathematical foundations of computer science 2015 : 40th International Symposium, MFCS 2015, Milan, Italy, August 24-28, 2015, Proceedings. Part II, as part of the series
Lecture notes in computer science 9235, edited by G.F. Italiano, G. Pighizzini, & D. Sannella (Berlin: Springer, 2015). LNCS 9235 forms part of the LNCS sublibrary Theoretical computer science and general issues.The final publication is available at http://dx.doi.org/10.1007/978-3-662-48054-0Peer reviewed.The later journal article version of this paper is available from the publisher at http://dx.doi.org/10.1007/s00037-016-0146-7 and at http://dx.doi.org/doi:10.7282/T3ZC8531 (Accepted Manuscript version)
sj-docx-1-pie-10.1177_09544089211052738 - Supplemental material for Heat transfer enhancement using double taper microchannel
No full textSupplemental material, sj-docx-1-pie-10.1177_09544089211052738 for Heat transfer enhancement using
double taper microchannel by Pallikonda Mahesh, Kupireddi Kiran Kumar, Karthik Balasubramanian, Chandramohan VP, Poh Seng Lee and Chui Chee Kong in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</p
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