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Functional trait differences between native bunchgrasses and the invasive grass

Huiqin HE, Thomas A. MONACO, Thomas A. JONES

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 1,   Pages 139-147 doi: 10.15302/J-FASE-2017175

Abstract: We conducted 30- and 60-d greenhouse experiments to compare functional traits of (invasive annual grass) and four perennial bunchgrasses under well-watered or drought conditions. Even under drought, experienced significantly less stress (i.e., higher xylem pressure potential and greater shoot water content, water use per day and water-use efficiency) and biomass production than the perennial grasses after 30 d. However, after 60 d, its superiority was reduced under infrequent watering. Differences among perennial grasses were more pronounced for physiological traits under infrequent watering and for morphological traits under frequent watering. (fast-growing species) had a higher transpiration rate, lower leaf temperature, and lower water-use efficiency than the other grasses after 30 d. In contrast, (slow-growing) had lower xylem pressure potential and higher leaf temperature than all other grasses under infrequent watering. Under frequent watering, shoot dry mass and specific leaf area of was matched by (moderate-growing species). Our results indicate that multiple-species plantings or seedings are necessary to foster greater weed resistance against . We also emphasize that when choosing plant material for restoration, performance during both pulse (resource-rich) and inter-pulse (resource-poor) periods should be considered.

Keywords： annual grass     comparative growth     drought response     invasive plant     native grass     specific leaf area     soil-water    

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Economic Growth Model Based on Six Basic Factors of Production—Xu Growth Rate Equation

Shou-bo Xu,Zong-yuan Huang

Frontiers of Engineering Management 2014, Volume 1, Issue 2,   Pages 160-175 doi: 10.15302/J-FEM-2014024

Abstract: This paper proposes an economic growth model based on the Six Basic Factors of Production and Xu GrowthRate Equation for the first time, which fills-in the deficits of the New Classical Economic Growth Modeldecades, the consumption of six basic factors of production had complicated relations with economic growthrate of the basic factors of production was meager, but the economy witnessed relatively rocketing growthrate; in some years, the factors of production consumption rate was very high, but the economy growth

Keywords： six basic factors of production     economic growth model     Xu Growth Rate Equation    

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The Development and Comparative Analysis of Engineering Project Management Modes

Ji-wei Zhu,Li-nan Zhou,Ming-yuan Yu,Zhao Zhai

Frontiers of Engineering Management 2015, Volume 2, Issue 4,   Pages 351-358 doi: 10.15302/J-FEM-2015060

Abstract: These have led to comparative analysis and brief commentary.

Keywords： engineering projects     management mode     comparative analysis     development trend    

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Comparative lipidomic analysis of

Bin QIAO, Hong-Chi TIAN, Ying-Jin YUAN

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 461-469 doi: 10.1007/s11705-012-1223-3

Abstract: A comparative lipidomic method was used to investigate the changes in total cellular PLs during continuousThe complexity of the media affected the growth of the yeast and the membrane composition.

Keywords： lipidomics     systems biology     phospholipids     stirred-tank     saccharomyces cerevisiae     biorefinery engineering    

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Clinical evaluation of recombinant human growth hormone injection in children with growth hormone deficiency

Ling HOU, Xiaoping LUO, Minlian DU, Huamei MA, Chunxiu GONG, Yuchuan LI, Shuixian SHEN, Zhuhui ZHAO, Li LIANG, Guanping DONG, Chaoying YAN, Hongwei DU

Frontiers of Medicine 2009, Volume 3, Issue 2,   Pages 171-176 doi: 10.1007/s11684-009-0027-4

Abstract: Recombinant human growth hormone (rhGH) has been widely used in the clinical treatment of growth hormoneof the current study was to evaluate the efficacy and safety of rhGH injection for the treatment of growthThe height (HT), annual growth velocity (GV), mean height standard deviation score (HT SDS), blood seruminsulin-like growth factor I (IGF-I), insulin-like growth factor binding protein 3 (IGFBP-3), and boneWe conclude that rhGH injection is a safe and effective drug for treatment of growth hormone deficiency

Keywords： recombinant human growth hormone     injection     growth hormone deficiency    

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Last Planner System and Scrum: Comparative analysis and suggestions for adjustments

Roshan POUDEL, Borja GARCIA de SOTO, Eder MARTINEZ

Frontiers of Engineering Management 2020, Volume 7, Issue 3,   Pages 359-372 doi: 10.1007/s42524-020-0117-1

Abstract: A comparative analysis is conducted between LPS and Scrum to expand LPS by considering Scrum’s best practices

Keywords： Lean Construction     Last Planner System     Agile     Scrum     comparative analysis     AEC projects     project teams    

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Copper fractal growth during recycling from waste printed circuit boards by slurry electrolysis

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1405-7

Abstract:

• Copper fractal growth was observed during WPCBs recycling by slurry

Keywords： Dendritic copper     Fractal growth     WPCBs     Slurry electrolysis    

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Growth and abscisic acid responses of

Yue LI, Liqiang WAN, Yufei WANG, Xianglin LI

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 1,   Pages 80-86 doi: 10.15302/J-FASE-2017199

Abstract: The response of alfalfa to water stress at different growth stages was generally similar, but varied

Keywords： abscisic acid     alfalfa     drought response     growth stage     water deficit    

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Layer-like FAU-type zeolites: A comparative view on different preparation routes

Bastian Reiprich, Tobias Weissenberger, Wilhelm Schwieger, Alexandra Inayat

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 127-142 doi: 10.1007/s11705-019-1883-3

Abstract: The creation of intergrown layer-like zeolite crystals is one route to form hierarchical zeolites. Faujasite-type (FAU-type) zeolites are among the industrially most important zeolites and the implementation of hierarchical porosity is a promising way to optimise their catalytic and adsorptive performance. After a short general survey into routes for the preparation of hierarchical pore systems in FAU, we will review the currently existing strategies for the synthesis of FAU with layer-like morphology. Those strategies are mainly based on the presence of morphology modifying agents in the synthesis mixture. However, a very recent approach is the synthesis of layer-like FAU-type zeolite crystals assembled in an intergrown manner in the absence of such additives, just by finely adjusting the crystallization temperature. This additive-free preparation route for layer-like FAU, which appears very attractive from an ecological as well as economic point of view, is highlighted in this review. Concluding, a comparison, including powder X-ray diffraction, scanning and transmission electron microscopy, nitrogen physisorption and elemental analysis, between conventional FAU and three layer-like FAU obtained by different synthesis routes was carried out to show the structural, morphological and textural differences and similarities of these materials.

Keywords： FAU     hierarchical zeolite     layer-like morphology    

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Availability growth models and verification of power equipment

Jinyuan SHI, Jiamin XU

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 529-538 doi: 10.1007/s11708-019-0624-0

Abstract: The general availability growth models for large scale complicated repairable system such as electriccalculation formulas for the maintenance coefficient, mathematical expressions for general availability growthAvailability growth models for electric generating units, power station auxiliaries, and transmissionand distribution installations are given together with verification examples for availability growthmodels conform to rules of availability growth tendency of power equipment.

Keywords： station auxiliary     transmission and distribution installation     reliability     availability     availability growth    

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implications of planting mode on cadmium uptake and remobilization in rice: Field experiments across growth

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1431-5

Abstract:

•Direct seeding (DS) method led to more distributed Cd in aerial parts of rice.

Keywords： Cadmium     Genotypes     Growth stages     Micro X-ray fluorescence     Planting mode    

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Robotic distal pancreatectomy versus conventional laparoscopic distal pancreatectomy: a comparative study

Eric C. H. Lai,Chung Ngai Tang

Frontiers of Medicine 2015, Volume 9, Issue 3,   Pages 356-360 doi: 10.1007/s11684-015-0404-0

Abstract:

Robotic system has been increasingly used in pancreatectomy. However, the effectiveness of this method remains uncertain. This study compared the surgical outcomes between robot-assisted laparoscopic distal pancreatectomy and conventional laparoscopic distal pancreatectomy. During a 15-year period, 35 patients underwent minimally invasive approach of distal pancreatectomy in our center. Seventeen of these patients had robot-assisted laparoscopic approach, and the remaining 18 had conventional laparoscopic approach. Their operative parameters and perioperative outcomes were analyzed retrospectively in a prospective database. The mean operating time in the robotic group (221.4 min) was significantly longer than that in the laparoscopic group (173.6 min) (P = 0.026). Both robotic and conventional laparoscopic groups presented no significant difference in spleen-preservation rate (52.9% vs. 38.9%) (P = 0.505), operative blood loss (100.3 ml vs. 268.3 ml) (P = 0.29), overall morbidity rate (47.1% vs. 38.9%) (P = 0.73), and post-operative hospital stay (11.4 days vs. 14.2 days) (P = 0.46). Both groups also showed no perioperative mortality. Similar outcomes were observed in robotic distal pancreatectomy and conventional laparoscopic approach. However, robotic approach tended to have the advantages of less blood loss and shorter hospital stay. Further studies are necessary to determine the clinical position of robotic distal pancreatectomy.

Keywords： distal pancreatectomy     pancreatic neoplasm     robotic surgery    

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An investigation on prevalent strategies for XFEM-based numerical modeling of crack growth in porous

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 914-936 doi: 10.1007/s11709-021-0750-8

Abstract: Crack growth modeling has always been one of the major challenges in fracture mechanics.Finally, the crack growth is modeled in a natural porous media (Fontainebleau sandstone).tests showed that the second strategy is a more accurate strategy in predicting the preferred crack growth

Keywords： numerical modeling     extended finite element method     porous media     crack growth     stress intensity factor    

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Comparative transcriptomics revealed enhanced light responses, energy transport and storage in domestication

Zhiqiang XIA,Xin CHEN,Cheng LU,Meiling ZOU,Shujuan WANG,Yang ZHANG,Kun PAN,Xincheng ZHOU,Haiyan WANG,Wenquan WANG

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 4,   Pages 295-307 doi: 10.15302/J-FASE-2016126

Abstract: Cassava is a staple food, feed and bioenergy crop important to the world especially in the tropics. Domesticated cassava is characterized by powerful carbohydrate accumulation but its wild progenitor is not. Here, we investigated the transcriptional differences of eight cDNA libraries derived from developing leaf, stem and storage root of cassava cv. Arg7 and an ancestor line, W14, using next generation sequencing system. A total of 41302 assembled transcripts were obtained and from these, 25961 transcripts with FPKM≥3 in at least one library were named the expressed genes. A total of 2117, 1963 and 3584 transcripts were found to be differentially expressed in leaf, stem and storage root (150 d after planting), respectively, between Arg7 and W14 and ascribed to 103, 93 and 119 important pathways in leaf, stem and storage root, respectively. The highlight of this work is that the genes involved in light response, such as those for photosystem I (PSA) and photosystem II (PSB), other genes involved in light harvesting, and some of the genes in the Calvin cycle of carbon fixation were specially upregulated in leaf. Genes for transport and also for key rate-limiting enzymes (PFK, PGK and PK, GAPDH) coupling ATP consumption in glycolysis pathway were predominantly expressed in stem, and genes for sucrose degradation (INVs), amylose synthesis (GBSS) and hydrolysis (RCP1, AMYs), the three key steps of starch metabolism, and transport associated with energy translocation (ABC, AVPs and ATPase) and their upstream transcription factors had enhanced expression in storage root in domesticated cassava. Co-expression networks among the pathways in each organs revealed the relationship of the genes involved, and uncovered some of the important hub genes and transcription factors targeting genes for photosynthesis, transportation and starch biosynthesis.

Keywords： cassava     comparative transcriptomics     energy transport     photosynthesis     starch synthesis    

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The current phosphate recycling situation in China and Germany: a comparative review

Qing XUE, Xinyue HE, Saskia D. SACHS, Gero C. BECKER, Tao ZHANG, Andrea KRUSE

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 4,   Pages 403-418 doi: 10.15302/J-FASE-2019287

Abstract:

Phosphorus (P) is an indispensable element for organisms but the primary source of P—mineral phosphate resources—are non-renewable. Agricultural production has a high demand for fossil phosphate resources, but the resulting phosphate-rich residues are lack of management. This leads to rapid reserves depletion and severe phosphate pollution risks. One sustainable way is to reuse the phosphate dispersed in various residues such as sewage sludge and livestock manure. Diverse techniques have emerged to recover phosphate from wastes to close the phosphate cycle. While it is a global issue, the regional situations regarding potential phosphate scarcity and its management differ strongly. China is rich in phosphate resources, but over-exploitation has greatly increased the risk of phosphate rocks depletion, while in Germany the P resources depend on imports, but there is commitment to keep a balance between import and utilization. This had led to great differences in the way the two countries deal with the “re-use” of phosphate in waste. China is now in a transition phase from the simple terminal pollution control to “waste” reuse and nutrient resources recycling. One sign of this tendency is the mandatory garbage classification and preparation for further processing and recycling. This was first implemented in Shanghai in 2019, whereas Germany has been following the legal framework for waste management since the 19th century. There are a series of laws to control the nutrient loss from municipal and agricultural activities, as for instance with sewage sludge ordinance and fertilizer legislation. Many of these laws have been newly revised recently. Sewage sludge cannot be directly utilized on farmland as organic fertilizer any more. Alternatively, phosphate and other nutrients should be recovered from sewage sludge. Advanced phosphate recovery technologies and related nutrient recycling schemes are proceeding. This review summarizes the current situation of phosphate-containing residues management and phosphate reuse in China and Germany. The state legislation and policies, which would affect the phosphate recycling concept are presented as well. As there are various kinds of phosphate-containing residues, different phosphate recovery technologies can be applied. Those technologies are discussed from their mechanism and suitability.

Keywords： phosphate recovery     manure     sewage sludge     ordinances     technologies    

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Title Author Date Type Operation

Functional trait differences between native bunchgrasses and the invasive grass

Huiqin HE, Thomas A. MONACO, Thomas A. JONES

Journal Article

Economic Growth Model Based on Six Basic Factors of Production—Xu Growth Rate Equation

Shou-bo Xu,Zong-yuan Huang

Journal Article

The Development and Comparative Analysis of Engineering Project Management Modes

Ji-wei Zhu,Li-nan Zhou,Ming-yuan Yu,Zhao Zhai

Journal Article

Comparative lipidomic analysis of

Bin QIAO, Hong-Chi TIAN, Ying-Jin YUAN

Journal Article

Clinical evaluation of recombinant human growth hormone injection in children with growth hormone deficiency

Ling HOU, Xiaoping LUO, Minlian DU, Huamei MA, Chunxiu GONG, Yuchuan LI, Shuixian SHEN, Zhuhui ZHAO, Li LIANG, Guanping DONG, Chaoying YAN, Hongwei DU

Journal Article

Last Planner System and Scrum: Comparative analysis and suggestions for adjustments

Roshan POUDEL, Borja GARCIA de SOTO, Eder MARTINEZ

Journal Article

Copper fractal growth during recycling from waste printed circuit boards by slurry electrolysis

Journal Article

Growth and abscisic acid responses of

Yue LI, Liqiang WAN, Yufei WANG, Xianglin LI

Journal Article

Layer-like FAU-type zeolites: A comparative view on different preparation routes

Bastian Reiprich, Tobias Weissenberger, Wilhelm Schwieger, Alexandra Inayat

Journal Article

Availability growth models and verification of power equipment

Jinyuan SHI, Jiamin XU

Journal Article

implications of planting mode on cadmium uptake and remobilization in rice: Field experiments across growth

Journal Article

Robotic distal pancreatectomy versus conventional laparoscopic distal pancreatectomy: a comparative study

Eric C. H. Lai,Chung Ngai Tang

Journal Article

An investigation on prevalent strategies for XFEM-based numerical modeling of crack growth in porous

Journal Article

Comparative transcriptomics revealed enhanced light responses, energy transport and storage in domestication

Zhiqiang XIA,Xin CHEN,Cheng LU,Meiling ZOU,Shujuan WANG,Yang ZHANG,Kun PAN,Xincheng ZHOU,Haiyan WANG,Wenquan WANG

Journal Article

The current phosphate recycling situation in China and Germany: a comparative review

Qing XUE, Xinyue HE, Saskia D. SACHS, Gero C. BECKER, Tao ZHANG, Andrea KRUSE

Journal Article