The authors measured root morphological and architectural traits of 22 different dominant plant species across 16 Inner Mongolia grassland sites along soil water gradients, and analyzed the response of these root traits (diameter, length, SRL, RTD, BrIntensity and BrRatio) to four environmental factors (MAT, MAP, Soil N and Soil C). The results showed that variation of absorptive root diameter, tissue density and specific root length among different species was 7, 9, and 15 times, respectively. There was a significant positive correlation between root diameter and lateral root length, but negative correlation between root diameter and root branching intensity. Responses of both absorptive and non-absorptive roots to precipitation and soil nitrogen were species-specific. When using different combinations of root traits to describe plant adaptation strategies, different species’ root traits respond to environmental changes with different degrees and direction of variation, resulting in a diversity of plant adaptation strategies.

While testing capability of mass spectrometer has been improved, sample fusion system becomes the main factor to effect Ar isotopes determination. Sample tube has been reconstructed from mono tube to multiple tube. After reconstruction, it allowes us to remove atmosphere Ar and measure hot blank beforehand. This reduces the influence of non radiogenic Ar to measuring results,which plays an important role especially to young volcanic rocks. Moreover, measuring time is saving. The second change that has made is quartz tube from cylinder shape to three pinstripe. Quartz material contacted to the molybdenum crucible reduces to one fifth. This makes hot blank even lower and the removal time is shorter. After modification of sample tube, the content of radiogenic Ar increases and reproducibility and accuracy of standards is better.

Montgomery multiplication algorithm is optimized for large-bit modular multiplication and VLSI implementation. It is combined with the R-L (Right to Left) binary method to achieve speed improvement. Special efforts are focused on the problems with long-bit modular arithmetic. A Carry-Save-Adder architecture, which is implemented by redesigned (4:2) compressors, is used in the multiplier to avoid the long carry propagation. A signal-backup strategy is used to resolve the problem of signal broadcasting. Using a multiplexer-based method, the datapath of the multiplier is reconfigurable to perform either one 1024-bit-multiplication or two 512-bit multiplications in parallel. The Chinese Remainder Theorem (CRT) increases the decryption data rate by a factor of 3.8.

A novel and generic approach is presented to the hardware implementation of the RSA cryptoprocessor in deep submicro (DSM) technology with a redesigned systolic array. With deep submicro technology scaling, integrated circuit performance bottleneck has shifted from logic gates to global interconnection. Besides using the systolic architecture which is popular in hardwarebased RSA systems, a blockbased scheme is proposed to eliminate global signals, with a pipelined bus to convey data globally. The control signals and intermediate results used for sequential multiplications are transmitted by shift registers. All signals, except for the clock signal, are limited in one block or between two adjacent blocks. The Chinese Remainder Theorem (CRT) technique increases the decryption data rate by a factor of four. Two redundant blocks are added to adapt to the online partition of the multiplier and the variation of the length of P and Q in CRT mode. The blockbased global signal transportation scheme and the redundancy scheme are quite different from those of previous works.

The LPO of main minerals of ultramafic xenoliths including spinel lherzolite, spinel harzburgite and plagioclasebearing websterite which collected from Damaping, Hebei Province is analyzed and the seismic velocities of the rocks in X, Y, Z directions are obtained by two means: calculation and measure. Our investigations are summed as follows: 1) The LPO relations between olivine and orthopyroxene are different from usually situations:［100］_ol//［001］_opx,［010］_ol//［100］_opx,［001］_ol//［010］_opx; 2)The seismic anisotropy of the ultramafic rocks in Damaping is obvious. Their characters are consistent with the structures of the rocks and fabrics of minerals, which means seismic anisotropy is mainly controlled by rocks'fabrics; 3) Seismic velocities suggest that the composition of upper mantle in Damaping region is resemble to the xenoliths, which major component is lherzolite.