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Research on the maritime communication cryptographic chip’s compiler optimization

100%

Sheng L., Dai Z. B.

Polish Maritime Research

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2017

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tom 24

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nr Special Issue S2

In the process of ocean development, the technology for maritime communication system is a hot research field, of which information security is vital for the normal operation of the whole system, and that is also one of the difficulties in the research of maritime communication system. In this paper, a kind of maritime communication cryptographic SOC(system on chip) is introduced, and its compiler framework is put forward through analysis of working mode and problems faced by compiler front end. Then, a loop unrolling factor calculating algorithm based on queue theory, named UFBOQ (unrolling factor based on queue), is proposed to make parallel optimization in the compiler frontend with consideration of the instruction memory capacity limit. Finally, the scalar replacement method is used to optimize unrolled code to solve the memory access latency on the parallel computing efficiency, for continuous data storage characteristics of cryptographic algorithm. The UFBOQ algorithm and scalar replacement prove effective and appropriate, of which the effect achieves the linear speedup

2

Interspecies competition between microcystis aeruginosa and Scenedesmus obliquus under phenanthrene stress

81%

Jin X., Jiang J., Sheng L., Jin M.

Polish Journal of Environmental Studies

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2014

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tom 23

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nr 5

Interspecies competition is considered an important effector of community structure in ecosystems. Interspecies interactions may change due to changing environmental factors, including exogenous organic pollutants. In this paper, we measured the change in population density, based on the logistical growth model, of Microcystis aeruginosa and Scenedesmus obliquus when they were cultivated in single-species and mixedspecies cultures, under the stress of the polycyclic aromatic hydrocarbon (PAH) phenanthrene. The singlespecies culture experiment showed that S. obliquus could tolerate greater phenanthrene stress than could M. aeruginosa, and exhibited hormesis when the concentration of phenanthrene was 0.0625 mg/l. In the mixedspecies culture experiment, the toxicity of phenanthrene on the two algae changed. In the 0.0625 mg/l and 0.25 mg/l treatments, the population density of S. obliquus increased, whereas the population density of M. aeruginosa in each group decreased. Finally, the influence of different phenanthrene concentrations on the interspecies competition was evaluated.

3

Reutilization of cornstalk as matrix in bio-toilet

81%

Wang Z., Duan L., Sheng L., Wu S.

Polish Journal of Environmental Studies

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2014

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tom 23

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nr 4

Sawdust is the most popular matrix used in bio-toilets, but the wood resource is scarce in many countries. The aim of our research is to explore the possibility to select cornstalks as alternative matrix in bio-toilets. The experiments were conducted to compare the biodegradation effects of feces mixed with sawdust and cornstalk by monitoring the main physical and chemical parameters. In both tests, temperature, moisture content, and pH were all maintained within a feasible range during biodegradation. The weight reduction was very remarkable, and TN, TP, and TK all significantly increased (although the loss of NH3-N occurred). These results indicated the feasibility to use cornstalks as a bio-toilet matrix, which provides an effective way to reutilize agricultural waste and helps to popularize the application of bio-toilets.

4

Temporal and spatial patterns of seed dispersal of Musa acuminata by Cynopterus sphinx

61%

Tang Z., Sheng L., Ma X., Cao M., Parsons S., Ma J., Zhang S.

Acta Chiropterologica

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2007

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tom 09

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nr 1

The foraging behavior of greater short-nosed fruit bats (Cynopterus sphinx) on wild banana (Musa acuminata) and subsequent dispersal of seeds were studied in the Tropical Rainforest Conservation Area, Xishuangbanna Tropical Botanical Garden, Yunnan province, by direct observation of marked fruits, mist netting, and seed collection. The mean number (± SE) of individual C. sphinx captured by mist net were 2.2 ± 0.33/day and 1.4 ± 0.32/day in the rainy season (September to October) and dry season (November to December), respectively; the difference was not significant. The number of seed pellets expelled was 9.0 ± 1.12/day and 7.2 ± 1.37/day in the rainy and dry seasons respectively; again the difference was not significant. The removal curves for marked fruit were similar for 10 focal trees. Fruits were consumed heavily within two weeks after ripening and all the marked fruit were removed within one month. The difference in seed dispersal was significant between different feeding roosts indicating that patterns of seed dispersal may not be uniform. We found the seeds of M. acuminata can be dispersed by C. sphinx to a distance of about 200 m, and C. sphinx can be considered as an effective seed disperser of M. acuminata.

5

Isolation of 2-phenylethanol biosynthesis related genes and their relationship with 2-phenylethanol accumulation in Rosa rugosa

61%

Feng L., Wang M., Wang J., Zang S., Xia W., Sheng L.

Acta Physiologiae Plantarum

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2015

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tom 37

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nr 12

Rosa rugosa is a famous traditional flower in China used not only as a landscape plant but also as a timehonored and valuable aromatic plant. The natural aromatic substance 2-phenylethanol is the major indispensable ingredient of rose flower and rose essential oil. This study adopted R. rugosa ‘Tanghong’ as a test material to isolate 2-phenylethanol biosynthesis related genes RrAADC and RrPAR. The temporal and spatial expression patterns of the two genes in different flower developmental stages and floral organ parts were measured, and the relationship of 2-phenylethanol accumulation to RrAADC and RrPAR expression in R. rugosa was determined. The content of 2-phenylethanol in R. rugosa gradually increased with the degree of flower opening and peaked at the withering stage. The expression level of RrAADC gradually decreased with the degree of flower opening. Meanwhile, the expression level of RrPAR gradually increased from the budding stage to the half opening stage, rapidly decreased at the full opening stage, and slightly increased again toward the withering stage. The content of 2-phenylethanol was the highest in the petals, followed by that in the stamens and pistils. However, this compound was not detected in other parts of the fully opened flower. The expression level of RrAADC peaked in the stamens but was relatively low in the other parts. The expression level of RrPAR was the highest in the stamens and calyxes, followed by that in the pistils and receptacles, and the lowest in the petals and stalks. These results suggest that RrAADC and RrPAR coordinately regulate the biological synthesis of 2-phenylethanol in R. rugosa.

6

A comparison of in vitro fermentation characteristics of different botanical fractions of mature maize stover

61%

Tang S., Tan Z., Zhou C., Jiang H., Jiang Y., Sheng L.

Journal of Animal and Feed Sciences

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2006

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tom 15

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nr 3

505-515

An in vitro cumulative gas production technique was used to evaluate the nutritional characteristics of different botanical fractions of mature maize stover (variety Kexiang No.11). Whole maize stover was separated into eight fractions: leaf blade, leaf sheath, whole stem, upper stem, lower stem, cob, husk, and tassel. The results showed that there were significant (P<0.05) variations among different botanical fractions in in vitro gas parameters (e.g., the theoretical maximum volume of gas production, the rate constant of gas production, and fermentation lag time). Husk had the highest theoretical maximum gas production and rate constant, while leaf sheath had the longest lag time. The hemicellulose content was positively related (P<0.05) with cumulative gas production at 24, 36 and 48 h of incubation and with the theoretical maximum gas production. The hemicellulose-to-crude-protein ratio was positively related (P<0.05) to the rate constant of gas production. In vitro gas production showed a negative but not significant (P>0.05) relationship with acid detergent fibre (ADF) and neutral detergent soluble (NDS) contents of the morphological fractions.

7

Transcriptome-sequencing analyses reveal putative genes related to flower color variation in Chinese Rosa rugosa

51%

Sheng L., Xia W., Zang S., Zeng Y., Yuan X., Ning G., Zhang S., Feng L.

Acta Physiologiae Plantarum

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2018

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tom 40

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nr 03

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