1,265 research outputs found
Lysinimonas yzui sp. nov., isolated from cattail root soil from mine tailings
No full textMei, Lijuan, Piao, Zhe, Hu, Jian, Shi, Linlin, Bai, Yanchao, Yin, Shixue (2020): Lysinimonas yzui sp. nov., isolated from cattail root soil from mine tailings. International Journal of Systematic and Evolutionary Microbiology 70 (3): 2003-2007, DOI: 10.1099/ijsem.0.00401
Fault detection and fault-tolerant control for nonlinear systems
No full textLinlin Li addresses the analysis and design issues of observer-based FD and FTC for nonlinear systems. The author analyses the existence conditions for the nonlinear observer-based FD systems to gain a deeper insight into the construction of FD systems. Aided by the T-S fuzzy technique, she recommends different design schemes, among them the L_inf/L_2 type of FD systems. The derived FD and FTC approaches are verified by two benchmark processes. Contents Overview of FD and FTC Technology Configuration of Nonlinear Observer-Based FD Systems Design of L2 nonlinear Observer-Based FD Systems Design of Weighted Fuzzy Observer-Based FD Systems FTC Configurations for Nonlinear Systems< Application to Benchmark Processes Target Groups Researchers and students in the field of engineering with a focus on fault diagnosis and fault-tolerant control fields The Author Dr. Linlin Li completed her dissertation under the supervision of Prof. Steven X. Ding at the Faculty of Engineering, University of Duisburg-Essen, Germany
Fig. 1 in Lysinimonas yzui sp. nov., isolated from cattail root soil from mine tailings
No full textFig. 1. Neighbour-joining phylogenetic tree based on 16S rRNA gene sequences, showing positions of N7XX-4T and related taxa within the family Microbacteriaceae. Bootstrap values of over 60% (based on 1000 replicates) are shown at branching points. Dots indicate that the corresponding branches were also recovered in the maximum parsimony tree. Bar, 0.01 substitutions per nucleotide.Published as part of Mei, Lijuan, Piao, Zhe, Hu, Jian, Shi, Linlin, Bai, Yanchao & Yin, Shixue, 2020, Lysinimonas yzui sp. nov., isolated from cattail root soil from mine tailings, pp. 2003-2007 in International Journal of Systematic and Evolutionary Microbiology 70 (3) on page 2006, DOI: 10.1099/ijsem.0.004013, http://zenodo.org/record/374502
Images of our Writing: Posters of our watchers and learning in the time of COVID-19
No full textFor this poster assignment, students were asked to read Gail Godwin’s piece “The Watcher at the Gates” and imagine not only what their watcher might look like but also the ways in which their watcher affects their academic work. Posters A and B, by Linlin Tan and Yu Hu, show how students imagine their Watchers – the critical voice inside their heads – who often interfere with their writing or their creation process.
Posters C and D, by Haoyuan Li and Xingyi Wang, express students’ attitudes towards learning during the time of Covid-19. When the U of A made the decision to move the remainder of the Winter term 2020 to remote delivery, both instructors and students had very little time to adjust. This, in turn, created an opportunity for students to show in a one-page poster how they feel about learning online. Each poster expresses a different reaction to remote delivery
Horticultural therapy for general health in the older adults: a systematic review and meta-analysis
No full textBackground With a pronounced and historically unprecedented tendency of population ageing, research on ageing and related disorders has been increasingly brought into focus. Horticultural therapy (HT), as an important role of social prescribing, has been an integrative for decades. This systematic review and meta-analysis aimed to evaluate HT for general health in older adults. Methods Electronic databases including PubMed, Web of Science, ScienceDirect, the Cochrane Library, MEDLINE (Ovid), EMBASE (Ovid), CINAHL (EBSCO), China National Knowledge Infrastructure (CNKI), and the Wanfang database, grey literature databases and clinical trials registers were searched from inception to March 2021. Randomized controlled trials (RCTs), quasi-RCTs (QRCTs) and the cohort studies about HT for adults aged over 60 were included in this study. Outcome measures were physical function, quality of life, BMI, mood tested by self-reported questionnaire and the expression of the immune cells. The study was registered under PROSPERO (CRD42019146184). Results Totally, fifteen studies (thirteen RCTs and two cohort studies) involving 1046 older participants were included. Meta-analysis showed that HT resulted in better quality of life (MD 2.09, 95% CI [1.33, 2.85], P<0. 01) and physical function (SMD 0.82, 95% [0.36, 1.29], P<0.01) compared with no-gardener; the similar findings showed in BMI (SMD -0.30, 95% [-0.57, -0.04], P = 0.02) and mood tested by self-reported questionnaire (SMD 2.80, 95% CI [1.82, 3.79], P<0. 01). And HT might be conducive on blood pressure and immunity, while all the evidence were moderate-quality judged by GRADE. Conclusions HT may improve physical function and quality of life in older adults, reduce BMI and enhance positive mood. A suitable duration of HT may be between 60 to 120 minutes per week lasting 1.5 to 12 months. However, it remains unclear as to what constitutes an optimal recommendation.</p
Litter quality modulates changes in bacterial and fungal communities during the gut transit of earthworm species of different ecological groups
No full textAbstract Earthworms are keystone animals stimulating litter decomposition and nutrient cycling. However, earthworms comprise diverse species which live in different soil layers and consume different types of food. Microorganisms in the gut of earthworms are likely to contribute significantly to their ability to digest organic matter, but this may vary among earthworm species. Here, we analyse the effect of food (litter) quality on gut microbiota and their changes during the gut passage (from foregut to hindgut) of earthworms of different ecological groups. The endogeic (soil living) species Aporrectodea caliginosa and the anecic (litter feeding) species Lumbricus terrestris were fed with high- (rape leaves) and low-quality litter (wheat straw) in a microcosm experiment for 18 weeks. Irrespective of earthworm species, alpha diversity of bacterial and fungal communities changed little during the gut passage, with the composition and diversity of microbial communities in the gut generally resembling those in soil more than in litter. In addition, the low-quality litter supported higher alpha diversity and more complex communities than high-quality litter. Further, gut microbial communities of the anecic L. terrestris changed less during gut passage than those of the endogeic A. caliginosa, especially when fed low-quality litter. Our findings indicate that earthworm gut microbial communities are predominantly shaped by the soil they ingest, but are modulated by the quality of litter they feed on and earthworm ecological group. Overall, the results suggest that earthworms primarily influence soil microbiota by mixing and spreading microorganisms from different microhabitats through bioturbation rather than by digesting microorganisms.Open-Access-Publikationsfonds 202
Lysinimonas yzui Mei, Piao, Hu, Shi, Bai & Yin, 2020, SP. NOV.
No full textDESCRIPTION OF LYSINIMONAS YZUI SP. NOV. Lysinimonas yzui (y.zu ′ i. N.L. gen. n. yzui pertaining to YZU, Yangzhou University, where the taxonomic studies on the type strain were performed). Cells are Gram-stain-negative, non-spore-forming, aerobic and non-motile rods. Colonies are yellow, round and convex aħer 4 days of growth at 28 °C on R2A agar. Cells are usually 0.5–0.7 µm wide and 1.0– 1.1 µm long. Growth occurs at 10–37 °C (optimum 30 °C) and at pH 6–9 (optimum pH 7.5) and in the presence of 0–5% (w/v) NaCl. Growth does not occur under anaerobic conditions. Oxidase-negative, urease-negative and catalase-positive. Negative for hydrolysis of carboxymethyl cellulose, gelatin, DNA, casein, starch and tyrosine and positive for hydrolysis of Tween 80. Does not assimilate erythritol, D-arabinose, D-ribose, L-xylose, D-ardonitol, methyl β-D-xylopyranoside, L-sorbose, D-sorbitol, raffinose, starch, D-lyxose, D-tagatose, D-fucose, L-fucose, potassium gluconate or potassium 5-ketogluconate (API 50 CH test strips). Positive for the following enzyme activities (API ZYM test strips): alkaline phosphatase, esterase (C4), esterase lipase (C8), cystine aromatase, acid phosphatase, naphthol-AS-BI-phosphate hydrolase, α-galactosidase, β-galactosidase, α-gluconase and β-gluconase. The major fatty acids are anteiso-C15:0, iso-C15:0, C16:0, iso-C16:0 and anteiso-C17:0. The type strain, N7XX-4 T (=CGMCC 1.16548 T =DSM 106791 T = JCM 32630 T), was isolated from cattail root grown on mine tailings from Phoenix Mountain, Tongling city, Anhui Province (PR China). The G+C content of the DNA of the type strain is 67.0 mol%(by HPLC) and 69 mol% (by genome-based analysis).Published as part of Mei, Lijuan, Piao, Zhe, Hu, Jian, Shi, Linlin, Bai, Yanchao & Yin, Shixue, 2020, Lysinimonas yzui sp. nov., isolated from cattail root soil from mine tailings, pp. 2003-2007 in International Journal of Systematic and Evolutionary Microbiology 70 (3) on page 2007, DOI: 10.1099/ijsem.0.004013, http://zenodo.org/record/374502
A novel hybrid technique for short-term electricity price forecasting in deregulated electricity markets
No full textThis thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Short-term electricity price forecasting is now crucial practice in deregulated electricity markets, as it forms the basis for maximizing the profits of the market participants. In this thesis, short-term electricity prices are forecast using three different predictor schemes, Artificial Neural Networks (ANNs), Support Vector Machine (SVM) and a hybrid scheme, respectively.
ANNs are the very popular and successful tools for practical forecasting. In this thesis, a hidden-layered feed-forward neural network with back-propagation has been adopted for detailed comparison with other forecasting models. SVM is a newly developed technique that has many attractive features and good performance in terms of prediction. In order to overcome the limitations of individual forecasting models, a hybrid technique that combines Fuzzy-C-Means (FCM) clustering and SVM regression algorithms is proposed to forecast the half-hour electricity prices in the UK electricity markets. According to the value of their power prices, thousands of the training data are classified by the unsupervised learning method of FCM clustering. SVM regression model is then applied to each cluster by taking advantage of the aggregated data information, which reduces the noise for each training program.
In order to demonstrate the predictive capability of the proposed model, ANNs and SVM models are presented and compared with the hybrid technique based on the same training and testing data sets in the case studies by using real electricity market data. The data was obtained upon request from APX Power UK for the year 2007.
Mean Absolute Percentage Error (MAPE) is used to analyze the forecasting errors of
different models and the results presented clearly show that the proposed hybrid
technique considerably improves the electricity price forecasting
Edosa minuta Yang, Wang & Li, sp. nov.
No full textEdosa minuta Yang, Wang & Li, sp. nov. (Figs 5, 16 e, 17 c, 18 j, 50, 79, 94) Type material. Holotype ♂, CHINA: Mt. Yingge (19 °02΄N, 109 ° 33 ΄E), Hainan Province, 6.v. 2010, leg. Bingbing Hu & Jing Zhang, genitalia slide No. YLL 10219. Paratypes: CHINA: Hainan Province: 7 ♂, 3 ♀, Datian Conservation Zone (19 ° 42 ΄N, 109 ° 47 ΄E), 25 m, 30.xi, 1,2. xii. 2009, leg. Zhaohui Du & Linlin Yang, genitalia slide Nos. YLL 10025 m, YLL 10026 m, YLL 10027 m, YLL 10032 m, YLL 10033 m, YLL 10091 f, YLL 10092 f; 1 ♂, same place but 100 m, 28.iv. 2009, leg. Qin Jin, Bingbing Hu, genitalia slide No. YLL 10093; 1 ♂, 1 ♀, Jiaxi Conservation Zone (18 ° 49 ΄N, 109 ° 10 ΄E), 220 m, 14,15. xii. 2009, leg. Zhaohui Du & Linlin Yang, genitalia slide Nos. YLL 10029 m, YLL 10030 f; 2 ♂, 1 ♀, Mt. Yingge, 620 m, 28.iii. 2010, leg. Bingbing Hu, genitalia slide Nos. YLL 10060 m, YLL 10077 m, YLL 10059 f; 1 ♂, 3 ♀, Mt. Yingge, 3,21. vi. 2010, leg. Bingbing Hu, genitalia slide Nos. YLL 10071 m, YLL 10061 f, YLL 10218 f; 1 ♂, 1 ♀, same data but 25,30. ix. 2010, genitalia slide Nos. YLL 11016 m, YLL 10220 f; 1 ♀, Mt. Wuzhi (18 ° 46 ΄N, 109 ° 30 ΄E), 630 m, 16.iv. 2009, leg Qingjin & Bingbing Hu, genitalia slide No. YLL 11055; 1 ♀, Mt. Jianfeng (18 ° 50 ΄N, 108 ° 43 ΄E), 940 m, 6.vi. 2007, leg. Zhiwei Zhang & Weichun Li. Guangxi Zhuang Autonomous Region: 1 ♀, Qingshan Yard (22 °08΄N, 106 ° 44 ΄E), Pingxiang, 300 m, 27.vii. 2011, leg. Bingbing Hu et al., genitalia slide No. YLL 11125; 1 ♂, 2 ♀, Shaoping Yard, Pingxiang (22 °03'N, 106 ° 55 'E), 25.vii. 2011, 190 m, leg. Bingbing Hu et al. Diagnosis. This new species is diagnostic for the subovate valva with an open base and having an oval pleat extending from base to apex on the inner surface. Description. Adult (Fig. 50). Wingspan 8.5−11.5 mm. Head pale orange yellow. Antenna dusty yellow, 0.9× length of forewing; scape with a few black pecten bristles; flagellum unicolorous. Labial palpus dusty yellow, first and second segments with scattered darker scales on outer surface, third segment mixed with dark brown. Thorax and tegula yellowish brown. Forewing index 0.3, yellowish brown; retinaculum present; cilia yellowish brown, without cilia line. Hindwing grayish yellow; male with a single short, slender evenly curved frenular bristle, female with two same length bristles, thicker than male; cilia pale gray. Legs yellowish brown, fore and mid legs dark brown on ventral surface. Pregenital abdomen. First tergum with medial 4 / 5 sclerotized. In male, coremata present in eighth segment; eighth sternite 0.25× as long as wide, posterior margin gently concave, without caudal process; eighth tergite tapered, without caudal process. In female, seventh sternite semicircularly concave at middle on posterior margin. Male genitalia (Fig. 79). Vinculum with anterior and posterior margins parallel sided; medial process absent from ventrocaudal margin. Tegumen as deep as vinculum, slightly concave on anterior margin, convex at middle on posterior margin. Uncus with broad fan-shaped base that interrupted by traces of uncus lobes, not forming membraneous section with tegumen; uncus lobe 0.7× depth of vinculum, gently bent ventrad, only with sparse setae laterally, basal 3 / 4 fused, somewhat rectangular, distal 1 / 4 bifurcate, widely apart. Valva subovate, truncate at apex; costal margin semicircularly convex and bearing peg-like scales in basal half; basal flange absent; ventral margin gently convex, smooth, without ventral lobe; basal margin without ‘secondary apodeme’; inner surface with two transverse, parallel, apically joined pleats extending from base to before apex along middle section. Juxta angled caudally, short and slender, about 0.5× length of aedeagus. Aedeagus 1.5× length of valva, bullet-like; medial 1 / 3 membraneous, with a slender sclerotized band on ventral middle line, with two broader sclerotized bands laterally. Bulbus ejaculatorius 2.0× length of aedeagus, subdistal and distal sections not hypertrophied. Female genitalia (Fig. 94). Ovipositor length 2.3−2.7 mm. Eighth tergite tapered, anterior margin convex in triangle; microtrichiate on posterior half, with sparse setae on posterior margin. Eighth sternite membraneous medially, sclerotized in torus shape postero-laterally, microtrichiate on posterior 2 / 3, with sparse setae on posterior margin. Ostium at middle of anterior membraneous half, with sparse setae. Antrum absent, ductus bursae broad, 2.5× length of corpus bursae. Colliculum comprising a skirt-like, apex-denticulate process arising from junction of ductus bursae and corpus bursae, invaginated into corpus bursae to level of second ring; second ring at basal 2 / 5 of corpus bursae, with anterior margin denticulate; inception of ductus seminalis dorsal, at posterior margin of second ring. Corpus bursae ovate, thick-walled in posterior 2 / 5; signum absent. Distribution. China (Hainan, Guangxi). Etymology. The specific name is derived from the Latin minutus, meaning small, referring to the small size of the new species.Published as part of Yang, Linlin, Wang, Shuxia & Li, Houhun, 2014, A taxonomic revision of the genus Edosa Walker, 1886 from China (Lepidoptera, Tineidae, Perissomasticinae), pp. 1-102 in Zootaxa 3777 (1) on pages 42-43, DOI: 10.11646/zootaxa.3777.1.1, http://zenodo.org/record/24982
Edosa aurea Yang, Wang & Li, sp. nov.
No full textEdosa aurea Yang, Wang & Li, sp. nov. (Figs 1, 13, 18 e, 24, 55, 81) Type material. Holotype ♂, CHINA: Mt. Duowen (19 ° 48 ΄N, 109 ° 45 ΄E), Hainan Province, 120 m, 1.v. 2009, leg. Qin Jin & Bingbing Hu, genitalia slide No. YLL 11181. Paratypes: CHINA: Hainan Province: 4 ♂, same data as for holotype but 1−2.v. 2009, genitalia slide Nos. NKYLL 001, YLL 10074, YLL 10075, YLL 10076; 1 ♂, Datian Conservation Zone (19 ° 42 ΄N, 109 ° 47 ΄E), 25 m, 30.xi. 2009, leg. Zhaohui Du & Linlin Yang, genitalia slide No. YLL 10031; 1 ♀, Mt. Yingge (19 °02΄N, 109 ° 33 ΄E), 620 m, 3.vi. 2010, leg. Bingbing Hu & Jing Zhang, genitalia slide No. YLL 10236 f. Guangxi Zhuang Autonomous Region: 2 ♀, Qingshan Yard (22 °08΄N, 106 ° 44 ΄E), Pingxiang, 300 m, 21,23. vii. 2011, leg. Bingbing Hu et al., genitalia slide Nos. YLL 11175, YLL 11184; 1 ♀, Fubo Yard (22 °02΄N, 106 ° 50 ΄E), Pingxiang, 550 m, 1.viii. 2011, leg. Bingbing Hu et al., genitalia slide No. YLL 11174; 1 ♀, Shaoping Yard, Pingxiang (22 °03'N, 106 ° 55 'E), 190 m, 25.vii. 2011, leg. Bingbing Hu et al., genitalia slide No. YLL 11178; 2 ♂, Pingxincun, Yizhou (24 ° 30 ΄N, 108 ° 40 ΄E), 150 m, 16.viii. 2011, leg. Shulian Hao & Yinghui Sun, genitalia slide No. YLL 11179; 1 ♂, Nonggang, Longzhou (22 ° 28 ΄N, 106 ° 57 ΄E), 20.viii. 2011, leg. Jinwei Li, genitalia slide No. YLL 12150. Diagnosis. This new species is similar to E. witherspoonella Robinson, 2008. The defining genital feature is the wrinkled flap of the valva excurved and ovate in this species, but recurved and ridge-like in E. witherspoonella. Apart from this difference, the first collicular ring has a pair of digitate processes in E. aurea sp. nov., which is a dagger-shaped process in E. witherspoonella. Description. Adult (Fig. 24). Wingspan 12.0−20.0 mm. Head orange yellow. Antenna yellowish white, 0.8× length of forewing; scape without pecten, flagellum unicolorous. Labial palpus dusty yellow, mixed with brown scales on outer surface. Thorax and tegula golden cream. Forewing index 0.28−0.34, uniformly glossy golden cream; retinaculum present; cilia golden cream, cilia line ill-defined. Hindwing grayish brown, with slight bronzy iridescence; male with a single short, slender, evenly curved frenular bristle, female with two slender bristles, shorter one 0.8× length of longer one; cilia pale yellow. Fore and mid legs dark brown; hind leg yellow. Pregenital abdomen. First tergum with posterior 2 / 3 sclerotized. In male, coremata present in eighth segment; eighth sternite 0.5× as long as wide, posterior margin gently concave, without caudal process; eighth tergite trapezoidal, without caudal process. In female, seventh sternite semicircularly concave at middle on posterior margin. Male genitalia (Fig. 55). Vinculum slightly concave on both margins; medial process absent from ventrocaudal margin. Tegumen as deep as vinculum, deeply concave on anterior margin at middle, convex at middle on posterior margin. Uncus with shouldered base touching each other, forming a heart-like membraneous section with tegumen; uncus lobe as long as depth of vinculum, twisted at base, strongly contorted and overlapped in distal 1 / 3, forming sclerotized, bean sprout-shaped section with a small melanized nodule; sclerite absent between uncus lobes. Valva triangular, broad at base, narrowed to a small digitate distal process; costal margin with a large, wrinkled, subovate flap excurved from basal 1 / 4 obliquely running into inner surface; basal flange absent; ventral margin with obvious ventral lobe; basal margin with ‘secondary apodeme’ close to apodeme, represented only by a shallow convexity; inner surface unmodified except subovate flap. Juxta angled caudally, flat, trapezoidal, 0.5× length of aedeagus. Aedeagus stout, as long as valva, slightly bent ventrad, with very shallow dorsal emargination; double-walled: inner wall tubular, outer wall forming slender, triangular carinae subapically. Bulbus ejaculatorius 9.0−12.0× length of aedeagus, subdistal section semicircularly hypertrophied, distal section hypertrophied, 0.5× width of subdistal section, deep cup-shaped. Female genitalia (Fig. 81). Ovipositor length 2.2−2.7 mm. Eighth tergite tapered, anterior margin triangularly convex, posterior margin concave at middle and with sparse setae; microtrichiate on medial 1 / 3 and dorsal midline. Eighth sternite with dense microtrichia posterolaterally, deeply concave and with sparse setae on posterior margin, gently convex on anterior margin; a pair of small, knuckle-shaped processes posterior to eighth sternite. Ostium transverse, at medial concavity of posterior margin. Antrum absent; ductus bursae 1.3× length of corpus bursae, slightly broadened in anterior 1 / 5. Colliculum comprising a series of five rings, fourth ring thickly membraneous, others strongly sclerotized; first ring at anterior 1 / 6 of ductus bursae, broadly flanged, flower-like, with a pair of digitate processes invaginated into ductus bursae to level of second ring; second ring at junction of ductus bursae and corpus bursae, protruded ventrally; third ring close to second ring, skirt-like, slightly flanged on anterior margin; fourth ring differing in length among specimens; fifth ring flared anteriorly to form flanges which encircle and support corpus bursae; inception of ductus seminalis beneath postero-ventral margin of second ring. Corpus bursae thickened by presence of fourth ring posteriorly, thin and separated into two parts by flanges of fifth ring anteriorly; signum absent. Distribution. China (Guangxi, Hainan). Etymology. The specific name is derived from the Latin aureus, meaning golden, referring to the glossy golden cream forewing. Remarks. In the female genitalia, the anterior region of the corpus bursae is membraneous and thin-walled, usually shrinks during dissection and is difficult to discern its shape. In two of the five females, the fifth collicular ring is absent, and thus the anterior region of the corpus bursae is not separated into two parts (Fig. 81 a).Published as part of Yang, Linlin, Wang, Shuxia & Li, Houhun, 2014, A taxonomic revision of the genus Edosa Walker, 1886 from China (Lepidoptera, Tineidae, Perissomasticinae), pp. 1-102 in Zootaxa 3777 (1) on pages 16-18, DOI: 10.11646/zootaxa.3777.1.1, http://zenodo.org/record/24982
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