181,773 Result(s)
within
**u Xu
-
Article
Engineering geological map** for an open pit mine
The objective of engineering geological map** is to present the geological condition for solving some problems in engineering construction. The map** theory and method should be concerned in close relation...
-
Chapter and Conference Paper
Investigation on Ecological Distribution of Fungi in Paddy Soils
Paddy soils are derived from various kinds of parent materials under wet cultivation over different parts of China. They developed through repeated and alternate processes of oxidation and reduction. They are ...
-
Chapter and Conference Paper
Influence of Transformation of Iron Oxides on Soil Structure
Although iron oxides in soils are the secondary component of soil clay, they have attracted the attention of many soil chemists. This is because iron oxides are highly active, are easily changed with a change ...
-
Chapter
Preparation of Nuclear Targets at the Institute of Atomic Energy
In this paper, the development of nuclear targets for nuclear reaction experiments in the Institute of Atomic Energy, Peking, China, is described. The techniques of vacuum evaporation, electroplating and isoto...
-
Chapter and Conference Paper
The Effect of Water-Stable Aggregates in Various Sizes on Air and Water Regime of Soils
Studies in recent years indicate that some of the paddy soils in the Taihu Lake region have become degenerated in structure owing to the management practice unadaptable for the current triple crop** system w...
-
Chapter and Conference Paper
Crop** System in Relation to Fertility of Paddy Soils in China
China has a long history of rice cultivation. It is demonstrated that rice has been cultivated for more than five thousand years in the country. Following the social development and scientific and technologica...
-
Chapter and Conference Paper
Differentiation of Iron Oxide in Paddy Soils in Taihu Lake Region
In the genesis of paddy soils the differentiation of iron oxid is one of the main causes for forming specific morphological profiles. In this paper, based on the contents of total iron, free iron oxide and amo...
-
Chapter and Conference Paper
Clay Minerals of Paddy Soils in Taihu Lake Region
The Taihu Lake is situated in the northern part of subtropics, with a mild and humid climate. According to the results of primary mineral analysis(l), the minerals in the silt fractions are less weathered with...
-
Article
Über Isolierung und Identifizierung eines neuen Typs von Enterovirus aus akuten epidemischen hämorrhagischen Konjunktivitisfällen
Aus akuten hämorrhagischen Konjunktivitisfällen wurden 3 Virusstämme isoliert. Ihre Resistenz gegen Äther, Säure, Iododeoxyuridine spricht für ihre Zugehörigkeit zum Enterovirus. Weil ein Vertreterstamm (Hu) d...
-
Article
Mutagenic activity in diesel exhaust particulates
-
Article
Applying the generalized step-function to solve the bending problems of nonuniform beams with variable cross section
The bending problems of nonuniform beams with variable cross-section can be approximated by that of a step beam under sectionally uniform load (including both concentrated forces and couples). In this paper, t...
-
Article
Immunofluorescence localization of proteins in semithin 0.2–1 μm frozen sections of the ear
In dieser Arbeit wird eine Methode beschrieben, mit der man mit höherer Auflösung Proteine in Gefrierschnitten vom Innenohr durch Immunofluoreszens lokalisieren kann. Die Gewebestückchen werden in Gelatine ein...
-
Article
Off-Axis Tensile Properties of γ/γ′-αMo Ds Eutectic
This paper reports a study of off-axis tensile properties of γ/γ′-αMo Ds eutectic and the dynamic fracture process directly observed with a scanning electron microscope. If the loading direction deviates from ...
-
Article
The neotectonic stress field in the regions of Shaanxi, Gansu, Ningxia and Qinghai (China)
Geologische, seismologische, geodätische und geomorphologische Daten wurden verwendet, um die Richtung der überregionalen, neotektonischen Hauptnormalspannungen im nördlichen Zentralchina zu bestimmen. Es wird...
-
Article
The symmetrical deformation of circular membrane under the action of uniformly distributed loads in its central portion
This paper presents the solution of symmetrical deformation of circular membrane under the action of uniformly distributed loads in its central portion. Its limiting case is the solution of circular membrane u...
-
Chapter and Conference Paper
Some new developments of the singularity-separating difference method
-
Article
ICP-Emissionsspektroskopie: Ein analytisches Verfahren zur Klärschlamm- und Bodenüberwachung in der Routine
The capacity of ICP-spectroscopy for routine application to sludge and soil for supervising the contamination by heavy metals is discussed by means of some special examples. A comparison between “aqua regia” —...
-
Chapter
A Study of the Reaction Mechanism for 12C Plus 209Bi at E(C) = 61.1-73 MeV
Elastic, evaporation-residue, fission, and light-particle cross section excitation functions have been measured for 12C + 209Bi at incident energies near and just above the Coulomb barrier. From these data a “dir...
-
Article
General theory and design of microwave open resonators
Based on the analysis of wave propagation in a waveguide with slowly varying cross-section, a general theory is developed for microwave open resonators with rotational-symmetric waveguides; this geometry has b...
-
Chapter and Conference Paper
Intracranial Hemorrhage and Hematoma Following Open-Heart Surgery
Neurological damage following open heart surgery has been a subject of much concern ever since the employment of cardiopulmonary bypass in cardiac operations. Various lesions including cerebral edema, petechia...
