(1) Much of the progress achieved in studies of Quaternary environmental change has involved increasing amounts of interdisciplinary cooperation.

(2) A field guide to the Quaternary deposits has been completed; it includes descriptions of important interglacial deposits found during the survey.

(3) Cationics are usually quaternary ammomium salts.

(4) Quaternary System are not developed in eastern Liaonmg.

(5) Quaternary upper Pleistocene Series residual soil and slope washes.

(6) Woolly mammoths died out during the late Quaternary period.

(7) The Quaternary sediments are largely undeformed.

(8) Adsorption equilibrium on quaternary ammonium resin in uranyl sulphate solution, which is similar to composition used in uranium hydrometallurgy, was studied by chemical equivalent method.

(9) The natural thermoluminescence in Quaternary sediment has stored accumulated irradiated dose since the sediment deposited.

(10) Eleven solid quaternary complexes of rare earth perchlorate with diphenyl sulfoxide (L) and benzoic acid (L') have been synthesized and characterized.

(11) Plant area was distributed over Quaternary system alluvium and deposit of oxbow lake facies, base rock is Tertiary red rock.

(12) The present invention relates to a quaternary chrome series catalyst for ethylene trimerization to prepare 1-hexane.

(13) Quaternary ammonium salt cationic surfactant containing glucose group was synthesized with ethylene glycol glycoside, N, N-dimethyldodecan-1-amine and epoxy chloropropane.

(14) The Quaternary deposits of the Qaidam Basin are abundant in Ostracoda whose combination can be used to study the evolution of the climate because of their sensitivity to the climatic changes.

(15) Dayangshu Basin was in extensional setting in the Quaternary period, and a series of small extensional half-grabens were formed.

(16) NHPI combined with assistant catalyst such as azodiisobutyronitrile, quaternary ammonium bromide, anthraquinone, alcohol etc. can also catalyze aerobic oxidations.

(17) Result showed that dialkyl quaternary ammonium salts inhibited the growth of Aeromonas hydrophila and Flexibacter colnmnaris, and the short alkyl group is more effective than the long one.

(18) Warped and folded Paleozoic strata and reddish Tertiary volcanic rocks are capped with dark Quaternary basalt flows.

(19) The group will investigate coastal processes and assess these in the context of late Quaternary and Holocene conditions.

(20) In Changxing Basin, there are abundant ground water resources, such as pore water of Quaternary system, fracture water of sandstone(sentencedict .com), fracture water and cavern water of carbonatite.

(21) This paper first reports the synthesis and applications in hydrolysis and etherification of a new polymer supported quaternary ammonium resin, which is an effective triphase catalyst.

(22) X-ray powder diffraction(XRD) has been used to study the orientation of alkyl quaternary ammonium ion in the interlayer of products.

(23) An early form called Panel Call Indicator Pulsing used quaternary pulses to set up calls between a panel switch and a manual switchboard.

(24) NHPI combined with assistant catalyst such as : azodiisobutyronitrile, quaternary ammonium bromide , anthraquinone, alcohol et. al can also catalyze aerobic oxidations.

(25) Based on solid phosphoric acid catalyst (SPAC) T 49 composed of Si P B ternary system a new SPAC T 99 composed of Si P B D quaternary system was developed.

(26) Lime stones was more suitable for continuous cropping of flue - cured tobacco than clays formed quaternary period.

(27) Industries based on brainwork or knowledge are called the quaternary industry. And thus the concept of the cultural industry emerged and gradually matured.

(28) Ground water in Sanshandao mine field consists of sea water, Quaternary water, fissure water in base rock, underground hot water and fresh water.

(29) Furthermore, the expression of stationary bit error rate of system output corresponding to equiprobability quaternary pulse amplitude modulation (PAM) input signals was deduced.

(30) The discovery of Renzidong fauna is of great help for the study of the environmental background to the hominid evolution, and the evolution of zoogeography and paleoclimate of China in the Quaternary.