However, knock sensors have been a requirement of the OBD-II specification used in 1996 model year vehicles and newer.

However, when the application requirement is real-time, DSP is often implemented using specialised microprocessors such as the DSP56000, the TMS320, or the SHARC.

However, the most basic requirement of an EVM system is that it quantifies progress using PV and EV.

However, it is exempt of the Common external tariff, the Common Agricultural Policy and the requirement to levy Value added tax.

However, problems continued when the 486DX-50 was installed in local bus systems due to the high bus speed, making it rather unpopular with mainstream consumers as local bus video was considered a requirement at the time, though it remained popular with users of EISA systems.

However, it still has the original requirement on the lease, that the land will only be used for " recreational purposes ", as stipulated by the Bute family.

However, this requirement has become uncommon, and, now that a basic psychiatric qualification takes three years to obtain, the requirement is no longer practical.

However, free content has preserved the requirement ( present in both open source and free software ) that licenses allow commercial use and adaptation.

However, neither province had a constitutional requirement to protect its French-or English-speaking minority.

However, a dissenting school of thought often found in the opinions of Justice Antonin Scalia is that searches must simply be " reasonable ," and the warrant requirement has been overly emphasized.

However, in Betts v. Brady,, the Court declined to extend this requirement to the state courts under the Fourteenth Amendment unless the defendant demonstrated " special circumstances " requiring the assistance of counsel.

However, others have written that " it is hard to view Weems as announcing a constitutional requirement of proportionality.

However, there is no requirement that any particular people dance at all, much less with any particular person, and no absolutely required order for the bridal couple, their families, or the bridal party to begin dancing in.

However, the story may well be apocryphal, as it can only be traced to the 16th century, and, in the time of Edward I, the English aristocracy spoke Norman French, not English ( some versions of the legend include lack of knowledge in both languages as a requirement, and one reported version has the very specific phrase " born on Welsh soil and speaking no other language ").

However, the requirement for saying that a rail line is " separated " can be quite low — sometimes just with concrete " buttons " to discourage automobile drivers from getting onto the tracks.

However, reciprocating engine generators are quicker to respond to changes in output power requirement and are usually slightly more efficient, although the efficiency of microturbines is increasing.

However, since they did not hold any territory that was directly under the Imperial throne, they were unable to meet the primary requirement to qualify.

However, as a compromise to those who were against the revision, the new rule also changed the requirement for determining the number of votes needed for a cloture motion's passage from those Senators " present and voting " to those Senators " duly chosen and sworn ".

However, he was unable to complete the curriculum's rigorous mathematics requirement and was asked to repeat his sophomore year.

However, almost all students pass the writing requirement within two semesters.

However, every able adult has the obligation to perform some socially useful work as a requirement for receiving reward, albeit in the context of a society providing free health care, education, skills training, and the freedom to choose between various democratically structured workplaces with jobs balanced for desirability and empowerment.

However these obligations were subject to the caveat of being by the most economical means and BWB had no requirement to maintain Remainder waterways or keep them in a navigable condition.

However, orthogonal matrices arise naturally from dot products, and for matrices of complex numbers that leads instead to the unitary requirement.

However, the tree constructed by the living tree project, a collaboration between ARB-Silva and LPSN where a 16S ( and 23S if available ) tree of all validated species was constructed, the genus Bacillus contains a very large number of nested taxa and majorly in both 16S and 23S it is paraphyletic to Lactobacillales ( Lactobacillus, Streptococcus, Staphylococcus, Listeria, etc.

However, the vast majority has yet to be classified and assigned to genera and higher taxa.

However, simulations have shown that it is more important to increase the number of taxa in the matrix than to increase the number of characters, because the more taxa there are, the more accurate and more robust is the resulting phylogenetic tree.

However, despite these limitations, the inclusion of fossils is invaluable, as they can provide information in sparse areas of trees, breaking up long branches and constraining intermediate character states ; thus, fossil taxa contribute as much to tree resolution as modern taxa.

However, the relationship between these clades is unclear, and as a result of many historical taxonomic interpretations and differing opinions regarding the significance of morphological variations, rankings of taxa within the order are inconsistent.

However, even in traditional nomenclature, few taxonomists of our time would establish new taxa that they know to be paraphyletic.

However, the position of some genera ( e. g. Butorides or Syrigma ) is unclear at the moment, and molecular studies have until now suffered from a small number of studied taxa.

However, in a sexual genetic study which included 295 mountain zebra specimens, Moodley and Harley ( 2005 ) found no genetic evidence to regard the two Mountain zebra taxa as anything more than different populations of a single species.

However, a recent analysis showed that, if the piranha group is to be monophyletic, it should be restricted to Serrasalmus, Pygocentrus and part of Pristobrycon, or expanded to include these taxa plus Pygopristis, Catoprion, and Pristobrycon striolatus.

However, including the extinct forms listed below, at least the Mediterranean taxa do apparently constitute a superspecies in their own right, and maybe the New Zealand ones also.

However, our hypothesis of internal relationships of the oviparous group differs from a previous hypothesis as our results do not support monophyly of the oviparous taxa.

However, scientists researching this question have for quite some time realized that these two taxa are not particularly close relatives.

However, according to sequencing of the mitochondrial cytochrome-b gene of members of the genus Passerina, it was determined that the Indigo Bunting and Lazuli Bunting are not, in fact, sister taxa.

However, monotypic taxa are generally avoided by modern taxonomists if not necessary, and in this case a distinct superorder seems indeed unwarranted: together with the equally dubious superorder " Stenopterygii ", the grinners appear to be so closely related to some Protacanthopterygii to be included in that superorder.

However, the interrelationships between these taxa are disputed by various authors.

However, the endemic radiation of adapids in the early and middle Eocene of Europe included a number of taxa ( e. g., Anchomomys ) that were very small ( about 250 g or less ) and partly insectivorous.

However, the actual mechanisms leading to this result in divergent taxa appear to vary.

However, in these cases being " extinct " strongly relates to the sampling intensity of the IUCN, and that such a period of apparent extinction is too short for species to be designated as " Lazarus taxa " ( in its paleontological meaning ).

However, although four orders have been proposed from the 131 species named, there is no certainty that all of these are valid, and indeed it is likely that these taxa are seriously oversplit.

However, with the rise of phylogenetics, most of these taxa are no longer considered valid.

However, it seems that by moving some taxa about, a monophyletic Macrolepidoptera can be easily achieved.

However, more recent studies of the more morphologically diverse fertile organs have shown that taxa had more restricted regional distributions and several intra-gondwanan floristic provinces are recognizable.