The authors carried out a N enrichment experiment in Wuyi Mountain with four N addition levels (control (0), low N (50 kg N/(hm²·a)), medium N (100 kg N/(hm²·a)) and high N (150 kg N/(hm²·a))) This study was designed to study the seasonal characteristics of DBH (diameter at breast height) growth of Castanopsis carlesii and its short term response to simulated nitrogen deposition. Results show that the Castanopsis carlesii annual growth can be divided into 3 periods: water recovery period, fast growth period and slow growth period. N additions play different roles on the growth of Castanopsis carlesii. In the fast growth period (June to October), low N and medium N significantly increase the relative growth rate of annual DBH. Relative DBH growth in slow growth period (November to April) has no significant response to N addition. Among different diameter classes, N additions affect the DBH growth differently: low and medium N additions significantly promote growth in low diameter class (5 cm<DBH<15 cm) (p<0.05), but the tree growth has no significant response to high N addition. With the increase of tree diameter, the DBH growth of Castanopsis carlesii decreases sensitivity to N additions. High diameter class (DBH>25 cm) does not show significant response to N deposition. The study also finds that medium N addition significantly increase the biomass growth rate of Castanopsis carlesii in the study area (p<0.05).

Based on the grid data set of temperature and precipitation of China (0.5°×0.5°) and the output of coordinated regional downscaling experiment (CORDEX) East Asia, including the climate prediction based on RCP4.5 and RCP 8.5, the authors simulate and analyze vulnerability in Chinese northern farming-pastoral region from 1980 to 2100 with temperature, precipitation and maximum near-surface wind speed. The results show that the ecologically vulnerability in Chinese northern farming-pastoral region increases during 2006-2100, especially after 2050, the increase speed rises rapidly. By the end of 21st century, almost all the Chinese northern farming-pastoral region shows at least obvious vulnerability. Said on the space, the vulnerability is severe from Zhongwei to north of Hohhot, however, it’s better in north Great Khingan.

To acquire unique and random keys for chips from PUF, key extraction schemes for SRAM PUF are introduced. These schemes include the hard-decision and soft-decision decoding ones involving concatenated error-correcting code. By the actual responses of SRAM PUF’s on chips and software simulation, the effect of above two schemes is verified. The result shows that, for SRAM PUF, the soft-decision scheme is more reliable and efficient.

Comparison of air-cathode single chamber and double chamber Microbial fuel cells (MFCs) for sulfide-containing wastewater treatment was carried out. It was found that sulfide containing wastewater could be treated based on MFC technology with energy recovery. The maximum open circuit voltage of 897.2 mV and 821.7 mV, maximum power density of 340.0 mW/m ² and 273.8 mW/m ² , and the coulombic efficiency (CE) of 5.6% and 10.7% were realized in the single chamber and double chamber MFCs, respectively, with influent sulfide 100 mg/L and glucose 812 mg/L. Single chamber MFCs had higher performance in electricity output, but double chamber ones had a higher CE. After 72 hours operation of the single chamber MFCs, sulfide and TOC removal efficiencies reached 75.4% and 17.8%, respectively. Results indicate the feasibility of sulfide removal in MFCs and the cathode resistance is recognized as the main limiting factor in the reported system.

This paper presents a Chinese generation model based on Chinese characters structure and style. The model is descripted by the stroke element, stroke element vector, path vector, string vector and yoke vector, including structure of Chinese characters and style of Chinese character. It can be used to dynamically generate the outline of the personalization True type font, and the methods of store the Chinese character on the Web and output to client is implemented. The best way to overcome the problem on Chinese font design and font generation is founded. This model is efficacious in Chinese information cloud storage and cloud service, and also provides an effective strategy and methods for the design of a deeper cloud character information service.

Thousands of footprint fossils have been discovered in the Lower Cretaceous of Chabu area in Otog Qi, Ordos city, Inner Mongolia, including theropod, sauropod and bird footprints as well. In 2014, a detailed survey was carried out around the Otog Field Museum of Geological Vestige (Tracksite: 8A and 8B) in Chabu area. Two functionally didactyl tracks attributed to deinonychosaurian theropods were firstly found. These two-toed tracks are assigned to Dromaeosauripus according a number of features. Two other theropod fossil footprints (Asianopodus robustus and Grallator) were found together with the two-toed tracks, which reflected the living habits of deinonychosaurs. The global record of didactyl theropod tracks (Dromaeopodidae) was enlarged by this discovery. It also helps to reveal the paleoecology of Chabu area and compare strata with other area.

A memory prototype of variation function based on COMPOSITE design pattern is proposed, through which a uniform visiting interface is implemented and greatly improves the maintainability and expansibility of indispensable code in whole project Furthermore serialization of variation function and dynamically loading from storage is implemented with XML Serialization of variation function with XML not only can store away model's information, but can reveal the inner structure of model, and provide basis of evaluation, analysis, contrast and selection of models, as well as repetition use of model under analogical geological environment

Walkthrough in massive terrain data is a key technology and difficult problem of GIS, VR, game and simulation, etc. Based on current LOD algorithms and GPU technology of the computer, a fast walkthrough method with data block partition, out-of-core and static LODs is implemented. With view frustum culling based on nodes of block, triangle strip optimizing, cracks elimination and geomorphing, the efficiency and effect of the method are greatly increased.

It is constructed that a class of orthogonal Bent sequences, and used them to get balanced functions with high nonlinearity and satisfying SAC. The results are more extending.

By constructing a special class of matrices called M-type matrices, this paper has proved that the sequence gaining from concatenating the rows of a M-type matrix is a bent sequence and therefore generalized the results of [1] and [2].