quaternary

Forests in the Yellow River region have already decreased a great deal in Quaternary age, and the Loess Plateau began to be formed.

Quaternary structure The pattern in which two or more polypeptide chains are linked together to form a protein molecule.

the Quaternary Period in which human beings began to appear on the earth went into Ice Age again, it was the last time.

Polymerizable quaternary ammonium surfactants are easy to modify the materials through the polymerization reactions.

Around the world, a variety of climatic proxies demonstrate late Quaternary climate instability in a wide range of global significance.

The upper boundary of the model is phreatic surface, the bottom boundary is the base of the Quaternary.

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

The cool temperatures of the Quaternary may have allowed our brains to become much larger than those of our of hominid ancestors.

The deposit concealed under Quaternary system, and with plenty of underground. water.

In these thick-Quaternary-covering areas, does the date of the upper layers dislocated by the buried faults represent the latest faulting?

The moisture absorption humectant adopts trehalose quaternary ammonium salt as a moisture absorption moisturizing agent.

Therefore, seismic shear wave detection can be used to divide Quaternary unconsolidated strata.

It's evident that the ice sheets have gone through multiple stages of growth and retreat over the course of the Quaternary.

The pullulan aminoalkyl ether according to claim 1, wherein the pullulan aminoalkyl ether is in a form of a quaternary alkylamine salts.

Quaternary Lixian sag is northwestern one of the secondary tectonic units of the Dongting basin.

Main compositions : double strands quaternary amine salt , solubilizing agent , softener and natural antibacterial essential oil .

Transparent hair shampoo was prepared using poly siloxane quaternary ammonium salt microemulsion as a conditioner.

Results of this study: groundwater, structures, collapse of the Quaternary are factors.

Computational experiments have shown that protein primary sequence contains quaternary structure information.

The experimental results show that the vanadium-substituted P-Mo-V quaternary ammonium salts showed excellent catalytic oxidation capacity.

a great many proteins, especially enzymes, are oligomeric and consequently possess quaternary structure.

About 7~8 times of large-scale seawater invasions have taken place due to the neotectonic movement and climate change since the Quaternary.

At the same time, the standard Quaternary stratigraphic system of the North China Plain had been established on the basis of previous study.

Storage-stable organosilane quaternary compounds are provided in the form of adducts with urea (clathrates).

The fast growth of the salt structure took place from the middle-late Pliocene to Quaternary, featuring quick and differentiated growth.

The equilibrium phase diagram and the density-composition diagram of the quaternary system were plotted using experimental data.

Several Quaternary faults have been found in the Yangtze River estuary by high resolution multi-trace seismic surveying.

Underground water consists of Quaternary pore water, bedrock fissure water and ve in fissure water in structure zones.

Geologically, the rock mass of the Mogao Grottoes is semi-binder calcirudite of the quaternary sediment of very loose structure.

Turning endlessly back upon itself, it was eventually lost in the fossilized ice of the Quaternary.

The quaternary system piezoelectric ceramic with good properties and suitable for stationary wave ultrasonic motor is prepared.

These dating methods have made great progress in the quaternary geochronology and isotopic geoscience.

China's Datong group of volcanic Quaternary volcanic one of the group.

Rock occurrence flat, vertical joints of the development, the missing Quaternary glacial were good for the formation of this landform.

Preferred cationic sequestrants are quaternary nitrogen compounds including medium or long chain alkyl groups.

Previous research has concluded that biogenic gas of the Sanhu region is generated from Quaternary humic source rock.

Quaternary Glacier played very important role in formation of mountain genera and species, endemic genera and species in southern China.

The Quaternary strata of Anhui Province are developed mainly in Huaibei Plain, Jianghuai Undulating Plain and Yanjiang Hilly Plain.

Studies show that the formation of the ice bodies in the ice cave is related mainly to Quaternary glaciation.

We introduced one simple method of synthesizing quaternary ammonium fluoride and compared its reaction character as a fluridizer.

In their study, the scientists looked at quaternary ammonium compounds (QACs) that are used in many household cleaning goods.

The external cause was due to the influence of the Quaternary Period glacier.

Synthesis and application of polysiloxane quaternary ammonium salt are summarized here.

The Upper Jurassic , Cretaceous and Quaternary sediments are mostly siliciclastic and have the character of platform cover.

It is the Tertiary Quaternary ice age animal and plant a refuge, which retained a large number of Tertiary relic of biological species.

The Chinese loess is important Quaternary sediment. The information from the loess is important to understand Quaternary paleoenvironment.

Various iodinated strong base quaternary ammonium anion exchange resins were prepared.

The acceleration mechanism of quaternary ammonium salts during . . .

Natural gas in Kunming basin generally distributes in ever bed and section, but shallow gas nearly reserve in Quaternary.

Finally, we suggest that Sichuan Basin was a refugial area for Dendrolimus punctatus in Quaternary Ice Age.

Two-bit code for each element is composed by two binary bits of information, they represent the four symbols in the quaternary symbol.

foreland sediment and tectonic evolution since Jurassic-Quaternary.

And then the problem of seepage stability of Quaternary unconsolidated formation of downstream bank slope of saddle back was appraised.

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

Cationics are usually quaternary ammonium salts.

To conform with the Japanese JIS x 4061 standard, you need to set this attribute to on and the strength attribute to the quaternary level.

Chengdu depression is an important Quaternary basin in front of the Longmenshan mountain.

and imidazoline quaternary ammonium salts were synthesized and the content of cations was determined.

In this paper, a new application area of Quaternary geology, the submarine fiber optic cable route survey is introduced.

Reportedly, the site is mainly underlain by alluvial deposits of Quaternary Age comprising sand and clay.

In this paper experiments of image segmentation on Quaternary strata are made on RS image by morphologic methods.

The electronic structure of a quaternary alloy has been investigated using EHT band calculation method.

ACQ- DB is a water-based wood preservative that contains copper and Quaternary Ammonium Salts ( DDAC ) and boron-containing compounds.

The orebody occurred below Quaternary, mineralization is closely related to tectonic activity and alteration.

Quaternary sediments of this area come from complex rock of north-west of Longmenshan Nappe Tectonic. 2.

This paper is about my design of synthesis of the surfactant of quaternary ammonium salt.

Countries in which the tertiary and quaternary sectors of industrydominate being described as developed.

During Quaternary period, the gulch-gold mines are eventually formed with the action o. . .

Quaternary overburden is completely developed with thick layer.

In late Quaternary the lake shallowed and its water became salt-water.

Using fatty alcohol as starting material, double octyl quaternary ammonium bromide was obtained. It's yield reached 80%.

The paper reported these fossil strata for research of quaternary system at the region.

In Jingyuan region, the Quaternary system developed well, and zoned clearly, and there are complex genetical types.

I use the gas chromatograph to get the LLE data for four ternary systems and four quaternary systems containing DEC.

woolly mammoths died out during the late quaternary period .

the fault faults from basement to quaternary system , and has the feature of contemporaneous and normal fault.

Antibodies respond to the quaternary structure of proteins so their potential to cross-react with an alloantigen is very low.

It is famous for its grotesque peaks, cliff, waterfall, hot spring, cloud deck and Quaternary glacial relics.

Three demonstrations of this method for the determination of mixed metal ions, such as binary ternary and quaternary, are given.

We know little of a quaternary compound.

There are clay in upper tertiary system and loose soil in quaternary, in the basin. weathering marlite and gravelly soil is the rock layer.

Formula of iron-nickel-phosphorus-boron quaternary alloy electroless plating was optimized so as to obtain amorphous deposit.

However, those from Quaternary beachfront region are the type of NaCl dominant because of seawater influence.

The silt in the Yellow River Delta mainly belongs to the quaternary deposits.

O - or N- alkylation was carried out directly by simple heating the mixture of carboxylic acid or amine with quaternary ammonium salt.

The coal seam in Daming No. 1 & No. 2 Mines, Tiefa Mining Administration is overlain by a rich water bearing Quaternary sand layer.

Xiashu loess is a kind of special eolian deposits in the late quaternary, originating from middle and lower reaches of the Yangtze River.

Neotectonism refers to diastrophic activities in the late Tertiary and the whole Quaternary (including the present).

Design of quaternary Schmitt circuits.

Limaqiao, Tiandu peak and Beihai ant other areas are famous for the possible occurrence of Quaternary glaciers.

hydroxy ketone , (-)- 13 , possessing the correct configuration at the C(8) quaternary center.

In Jackson's videos, the dance is tertiary, even quaternary (after the song and the story and the filming).

In mountain and ravine region of southwest China, there are lots of quaternary glacial deposits.

There is much interest in the timing and duration of the Quaternary glacial in the plateau.

Quaternary sediment is thicker for lower area of Yangtze River, and layered structure of soils is obvious.

CAV-1 is destroyed in the environment by steam cleaning and quaternary ammonium compounds.

The content of dissoluble organic matter in quaternary source rock of biogenic gas is about 2.

Overall, Quaternary have a warm and humid environment in this area, but exist a cold climate stage in Mid-Pleistocene.

s consist of more than one polypeptide chain, and the association of these subunits in the protein gives rise to the quaternary structure.

There are Quaternary period glacial relics-Daocheng ancient ice cap and the third highest peak in Sichuan-Genie Mountain.

Siguniang Mountains is located on the southeast margin of Qinhai-Tibet plateau, and it developed 3 Quaternary ice ages.

Gerner et al. (3) recently reported their work with tonicaine, a quaternary lidocaine derivative (N-beta-phenylethyl-lidocaine).

The possible values are: primary (1), secondary (2), tertiary (3), quaternary (4), and identity (I).

The method of tectonic geomorphology was used to study tectonic activity and geomorphological features of Su-Lu segment in late Quaternary.

A new fossil moss from Quaternary in China.

Objective To study general toxicity, hereditary toxicity and mutagenicity of quaternary ammonium compound detergent.

Study of parameter-induced stochastic resonance and signal processing: Application in baseband quaternary PAM signals transmission

Determination of the Contents of Quaternary Ammonium Salts by Means of Potentiometric Titration

Analysis on Quaternary geomorphology and environmental geological problems in Huzhou and its neighboring areas, Zhejiang province

Character of heavy minerals in Quaternary sediments in Yichang area and its relationship with cut-through of the Yangtze Three Gorges, China

Clay Minerals in Quaternary Clayey Soil and Its Relation to the Land Subsidence in Kunming Basin Area

Lake level change recorded by core of the Quaternary lacustrine sediment in the central Tibetan plateau and its climatic implications

Preparation and antibacterial activity of the quaternary ammonium salt crystal and its softener function

Syntheses of New Quaternary Ammonium Phase Transferred Catalysts and Their Application in Enantioselective Alkylation

Study on Synthesis of A New Quaternary Ammonium Salts and Its Inhibition Properties

Late Quaternary Sea Surface Temperature in the West of the Coral Sea: Influence on the Growth of the Great Barrier Reef of Australia

Belladonna alkaloids, semisynthetic, quaternary ammonium compounds

Preparation of the double - quaternary ammonium salt and the evaluation of its bactericidal performance

Preparation of Insoluble Quaternary Ammonium Bactericides by Cross Linked Polystyrene Carried Bactericidal Functional Groups

Research on the finishing technology of the fabrics with polysiloxane quaternary ammonium salt micro-emulsion antibacterial agent

Flocculating Behaviors for Composite Flocculants of Crosslinked Quaternary Ammonium Salt of Chitosan-Polyaluminium Chloride

Study on Efficacy of the Mixed Disinfectant of Glutaraldehyde and Quaternary Ammonium Salt against Chicken Pathogen Microorganism

The Significance of the Depositional Hiatuses on the Coastal Plain of West Bohai Bay since the Late Quaternary Period

Preparation and characterization of montmorillonite modified quaternary ammonium salts

Study of the Organic Bentonite Modified by Alkyl Quaternary Ammonium Salts

Study of synthesis and properties of stearic acid triethanolamine quaternary

Lake sediments responded for the ancient monsoonal change of the late Quaternary Period in the Inland of Qinghai- Xizang Plateau

Formation mechanism, distribution feature and exploration prospect of the Quaternary biogenic gas in Qaidam Basin, NW China

Quaternary stratigraphic section along the Changhong Highway in Jiujiang Jiangxi

On the Synthesis of New Pyridine Porphyrin Quaternary Ammonium Salt and its Color Reaction with Zinc

Preparation of carboxymethyl chitosan quaternary ammonium salt and study on its antibacterial activity

The Preparation of Quaternary Ammonium Silver Halide and Its Thermal Decomposition Property

Synthesis of quaternary ammonium salt of chitosan and its flocculation and sterilization ability

The Stratigraphy of Heavy Minerals and its Significance in Quaternary Period, Changzhou, Jiangsu

Synthesis, Characterization and Antimicrobial Activity of Nano-Fumed Silica Derivative with Quaternary Ammonium Salts

Studies on corrosion inhibition property and antimicrobial ability of quaternary polyethyleneimine

Geometrical Imagery and Tectonic Transformation of Late Quaternary Active Tectonics in Northeastern Margin of Qinghai-Xizang Plateau

Synthesis, bactericidal and corrosion inhibition performance of double alkyl quaternary ammonium bromide salts

The Synthesization of Cationic Quaternary Ammonium Salt Bituminous Emulsifier and Its Reaction Influencing Factors

Uplifting since Quaternary in Southeastern Qilian Mountains and Its Dynamic Analysis

Describing and Computing Model of the Topological Relation in Spherical Surface Quaternary Triangular Mesh

Application of Chitosan and Its Quaternary Ammonium Salt to Antibacterial Finishing of Textile

Late Quaternary sedimentary diatom from East China Sea continental shelf and its paleoceanographical significance

Synthesis of Quaternary Alkyl Cation Starch and Its Industrialization Proposal

Disinfectants Containing Quaternary Ammonium Anion Surfactants: A Research Progress

Synthesis and Application of Cationic Terpolymer Containing Quaternary Ammonium Salts for Ultra-fine Pigment Dispersions

Network Polymer Electrolyte of Suspending Short Chain Polyether Polyol and Quaternary Ammonium Salt: Synthesis and Properties

Synthesis and Properties of a New Quaternary Ammonium Cationic Surfactant

The Mankind's Activity of China since the Quaternary and the Mutual Feedback of Geographical Environment

Study on Water Soluble Photosensitive Acrylic Phenolic Resins Containing Different Quaternary Ammonium Salts

Synergistic Inhibition Effect Between Mercapto- Triazole Compound and Organic Quaternary Ammonium Salt

Sedimentary facies of incised valley fillings of the Late Quaternary in Hangzhou Bay area and shallow biogenic gas exploration

Method for laboratory evaluation of disinfectant activity of quaternary ammonium compounds by suspension test procedure

Preparation of a Novel Biocide Using Poly Quaternary Ammonium Salt Grafted Nylon

Structural Characterization and Performance of Sulfodehydroabietic Acid Based Bis-quaternary Ammonium Cationic Surfactant

Preparation of Quaternary Ammonium Amphoteric PAM and Its Effect on Retention and Drainability of Wheat Straw Pulp

Quaternary Ammonium Salt Modified with Vegetable Tannin as Flocculants: Preparation and Property Evaluation

Analysis for the Effects of Clay's Lithology of The Quaternary System Bottom Limits on Improving Mining Upper Limits

New Type Water-developable Photosensitive Resins Containing Different Quaternary Ammonium Salt Groups

Three-Dimension Transient Seepage Numerical Simulation of Deep Foundation Pit Dewatering in Quaternary Loose Sediment Layer

Determination of the content of quaternary ammonium chloride in 1210 disinfection liquid by the first derivative spectrophotometry

Influence of polyoxyethylene chain-containing quaternary ammonium salt cationic surfactants on the anionic dye dyeing

Synthesis and Characterization of Polystyrene-Supported Chiral Quaternary Ammonium Salts

Long-chain Alkenones and Its Carbon Isotope: A New Tool for Assessment of Abrupt Climatic Change During Quaternary

Investigation on the Interaction between Quaternary Ammonium Surfactants and Lecithin Vesicles

Studies on synthesis of quaternary ammonium salt derivatives of haloperidol and their vasodilative activities

Synthesis and Properties of New Quaternary Ammonium Salt Cationic Cottonseed Oil Surfactants

Application of high substitution degree quaternary ammonium cationic corn starch in the treatment domestic wastewater

Study on Dispersion Polymerization and Application of Quaternary Ammonium Salt Organic Polymer Flocculent

Synthesis of quaternary ammonium functional polysiloxane as antibacterial and softening agent

The preparation and application of the textile-used softening agent of glyceride quaternary ammonium salt type

The Properties of new Softener-alkyl Imidazoline Ester and Its Quaternary

Synthesis of quaternary cationic starch flocculation under microwave irradiation

Analysis the geological conditions of the quaternary biogenic-gas reservoirs in the hetao basin, inner mongolia

Synthesis of Dialkyl Quaternary Ammonium Bromides and their Inhibiting Effect to Aquatic Pathogenic Bacteria

Synthesis of a Derivative of Quaternary Ammonium-Ibuprofen

QUATERNARY ENVIRONMENT CHARACTERISTICS IN THE SOUTHERN MARGIN OF SONG-LIAO BASIN: A case study of Siping-Suangliao area

Paleogeomagnetic Secular Variation and its Implication for the Quaternary deposits in the Pearl River Delta

Quaternary characteristics and things worthy of note in geo-technical engineering investigations, Xuzhou

Study on Synthesis of Quaternary Polymerization Acrylic Emulsion Pressure Sensitive Adhesive

Research on Na-montmorillonite's intercalation to different quaternary ammonium salt by ultrasonic technology

Bactericidal Activities of Two Sets of Quaternary Gemini Surfactants

Preparation of double alkyl quaternary ammonium salts and studies of their bactericidal performance

Model of Quaternary tectonic movement and dynamic setting of basins along the coast of Fujian, China

Synthesis of polyorganosiloxane quaternary ammonium salt and its antibiotic property

Study on Preparation and Characterization of Ester Interchanged Quaternary Ammonium Cationic Castor Oil

Paleontology and ecologic environmental evolution of the Quaternary in Hainan Island

Synthesis of Cinnamate and Quaternary Ammonium Salt-contained Phenolic Resin and Its Potocrosslinking

Synthesis and Surface-Active Property of Bis-Quaternary Ammonium Salt-Sulfate Zwitterionic Gemini Surfactant

Late Quaternary diatom biostratigraphic subdivision and correlation in Okinawa Trough

Synthesis and Antimicrobial Characteristics of Novel Biocides of Bis-Quaternary Ammonium Compound

Preparation of Quaternary Ammonium Salt Derivatives of Haloperidol and Their Activities on Coronary Artery

Standard Test Method for Disinfectant Quaternary Ammonium Salts by Potentiometric Titration

Preparation and Properties of the Copolymer of Acrylamide and Long Chain Alkyl Quaternary Ammonium Salt

High-resolution stratigraphic correlation method of the Quaternary in the Hangzhou-Jiaxing-Huzhou plain

Characteristics of the quaternary sequence construction and river evolution in the gulf of Thailand

Progress with respect to preparation and applications of dimethyl-diallyl-quaternary ammonium salt polymers

Geochemistry and sedimentary environments of the Quaternary sediments in the mid-Pacific Ocean

Mountain Building Process and Geomorphic Migration of Eastern Kunlun Mountains during Quaternary

The Research of a New Biocide Using Poly Quaternary Ammonium Salt Grafted Silica gel

Application of synthetic geophysical prospecting in geological survey of Quaternary system

Quaternary K-map for mutually exclusive variables and its simplification

Contrast Study on Late Quaternary Sedimentary Diatoms Between the Okinawa Trough and the East China

Synthesis of Quaternary Ammonium Salt of Chitosan and Its Clarification in Sugar Syrup

Exploration Courses and Reserves State of Quaternary Biogas in Qaidam Basin

Quality Testing of Disinfectant Solution Containing Quaternary Ammonium

Responses of landform development to tectonic movements and climate change during Quaternary in Fenhe drainage basin

Synthesis of linear block-polyether modified quaternary polylioxane and its application in shampoos

Synthesis of Adipic Acid from Cyclohexene with Quaternary Ammonium Phosphotungstate as Catalyst

Synthesis of New Water-Soluble Porphyrin Quaternary Ammonium Salts and Study on their Color Reaction with Zinc

Quaternary Science (programme offered jointly with University College London)

Use of a horizontally directional drill in long-distance non-excavation pipeline-laying in Quaternary clay layers

Classification of protein quaternary structure using amino acid and dipeptide composition

Synthesis and Photoinitiation Property of Quaternary Ammonium Tetraphenylborate

Synthesis and Application of Cationic Polymers Containing Quaternary Ammonium Salts

Engineering geological characteristics of Quaternary stratum in north Shanghai City

Formation of the vesicles in mixed solution of alkyl sulfonate - alkyl quaternary ammonium salts

Defining and protection of super heritage resources--A new domain of applied quaternary research in Western China exploitation

Study on synthesis of quaternary copolymerization acrylate hot-melt pressure sensitive adhesive film

Preparation and Activities on Coronary Artery of Quaternary Ammonium Salt Derivatives of Haloperidol

Test Method for Synthetic Quaternary Ammonium Salts in Fabric Softeners by Potentiometric Titrations

Structure and Performance of Bi-quaternary Ammonium Cationic Surfactants with Acrylic Modified Rosin

Logging interpretation model for reservoir physical parameter in the Quaternary natural gas reservoir

Identification of Fatty Acid Biomarkers in Quaternary of Qaidam Basin and Their Geological Significance

Synthesis and Properties of A Photobase Generating Quaternary Ammonium Salt

Analysis of the Palaeoenvironment of Quaternary Stromatolites at Dongmulian, Yangyuan County of Hebei Province

Epoxidation of olefins catalyzed by new quaternary ammonium salt-manganese porphyrin complexes

Synthesis and Application of the Quaternary Ammonium Cellulose Nitrate

Coupling of paleomagnetic polarity reverse with climatic change recoded by magnetostratigraphy in Northern China during Quaternary

High-resolution and precise reconstruction of Quaternary atmospheric dust activity in Central China

Synthesis and properties of quaternary ammonium salt fluorescent brighteners

Phase Separation in Nonaqueous Mixed Solvents Induced by Quaternary Ammonium Surfactants

Effects of Quaternary Ammonium Salt Derivative of Haloperidol on Experimental Arrhythmia

Mildewproof and Antibacterial Activity of Quaternary Ammonium Derivative of Fumed Silica

Identification Mark and Research Significance of Quaternary Alluvium and Proluvium

Antibacterial Activity of Binary Substituted Quaternary Ammonium Salts of Chitosan

Age determinations of the Quaternary strata and environmental changes in the Alag Lake area, East Kunlun

Study on the Quaternary Sediments'Properties and Engineering Countermeasures in Nanchong City

Relation between phase field distribution in diffusion triple and quaternary phase equilibria

The growth laminates of biological shell and the evolution of orbital parameters of the Earth-Moon from Ordovician to Quaternary

The synthesis of quaternary ammonium CPAM and its role for retention and filtration aid

Synthesis and Antiarrhythmic Activity of Protoberberine Quaternary Ammonium Compounds

Quaternary ammonium salts and hydroxides; leeithins and other phosphoaminolipids, whether or not chemically defined:

Quaternary Geology and its Analyse of Environment Changes in Xianyang Area

Method of element geochemical map production used in Quaternary cover areas

Quaternary sequence stratigraphy and hydrocarbon evaluation in Qaidam basin

To increase the Quaternary geological analysis in geotechnical sections formation

quaternary ammonium salt; phase transfer catalysis; synthesis;

Relationship between distribution of fatty acids and gas-generating potential in Quaternary in Qaidam basin

Oxidation of alcohols and olefins with hydrogen peroxide using Bis-quaternary ammonium and sodium tungstate