Admixing Chaff with Straw Increased the Residues Collected without Compromising Machinery Efficiencies

The collection of residues from staple crop may contribute to meet EU regulations in renewable energy production without harming soil quality. At a global scale, chaff may have great potential to be used as a bioenergy source. However, chaff is not usually collected, and its loss can consist of up to one-fifth of the residual biomass harvestable. In the present work, a spreader able to manage the chaff (either spreading [SPR] on the soil aside to the straw swath or admixed [ADM] with the straw) at varying threshing conditions (with either 1 or 2 threshing rotors [1R and 2R, respectively] in the combine, which affects the mean length of the straw pieces). The fractions of the biomass available in field (grain, chaff, straw, and stubble) were measured, along with the performances of both grain harvesting and baling operations. Admixing chaff allowed for a slightly higher amount of straw fresh weight baled compared to SPR (+336 kg straw ha−1), but such result was not evident on a dry weight basis. At the one time, admixing chaff reduced the material capacity of the combine by 12.9%. Using 2R compared to 1R strongly reduced the length of the straw pieces, and increased the bale unit weight; however, it reduced the field efficiency of the grain harvesting operations by 11.9%. On average, the straw loss did not vary by the treatments applied and was 44% of the total residues available (computed excluding the stubble). In conclusion, admixing of chaff with straw is an option to increase the residues collected without compromising grain harvesting and straw baling efficiencies; in addition, it can reduce the energy needs for the bale logistics. According to the present data, improving the chaff collection can allow halving the loss of residues. However, further studies are needed to optimise both the chaff and the straw recoveries.

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Vigor Testing of 15 Lots of Soybean (Glycine max L.) Seeds Stored for 12 Months at Low Temperatures

Biosfer Jurnal Tadris Biologi ◽

10.24042/biosfer.v1i1.4461 ◽

2020 ◽

Vol 11 (1) ◽

pp. 35-42

Author(s):

Desi Rizki Amelia ◽

Yayuk Nurmiaty ◽

Niar Nurmauli ◽

Agustiansyah Agustiansyah ◽

Ermawati Ermawati

Keyword(s):

Glycine Max ◽

Dry Weight ◽

Maximum Growth ◽

Mean Value ◽

Seed Vigor ◽

Growth Potential ◽

Vigor Index ◽

Glycine Max L ◽

The Mean ◽

The One

The purpose of this study was to determine the vigor growth strength of Anjasmoro, Grobogan, and Burangrang seed varieties based on three doses categories of SP-36 fertilizer stored for 12 months. The treatment was done separately by separating 15 seed lots. The mean value was determined using the Orthogonal contrast test. The results showed that the large-seeded soybean varieties (Grobogan and Burangrang) had higher seed vigor compared to the small-seeded soybean varieties (Anjasmoro) based on the variables of the germination speed, vigor index, normal dry weight, germination growth, and maximum growth potential. The Grobogan variety produced higher seed vigor than Burangrang variety based on vigor index and germination. Anjasmoro and Grobogan varieties without fertilization produced a lower vigor compared to the one with recommended fertilizer doses (100 and 150 kg/ha) and above the recommended fertilizer doses (200 and 250 kg/ha) based on the rate of germination growth and the vigor index. Grobogan variety with recommended fertilizer dose (100 kg/ha) had the highest seed vigor compared to other varieties. Pengujian Vigor 15 Lot Benih Kedelai (Glycine Max L.) Yang Disimpan 12 Bulan Pada Suhu RendahABSTRAK: Tujuan penelitian ini untuk Mengetahui vigor kekuatan tumbuh benih kombinasi Varietas Anjasmoro, Grobogan, dan Burangrang pada tiga kategori dosis pupuk SP-36 yang telah disimpan 12 bulan. Rancangan perlakuan disusun secara tunggal yaitu 15 lot benih dan pemisahan nilai tengah menggunakan uji Orthogonal contrass. Hasil penelitian menunjukan varietas kedelai berbiji besar (Grobogan dan burangrang) lebih tinggi vigor benihnya dari varietas kedelai berbiji kecil (Anjasmoro) berdasarkan variabel kecepatan perkecamabahan, indeks vigor, bobot kering kecambah normal, daya berkecamabah dan potensi tumbuh maksimum. Perbandingan varietas Grobogan menghasilkan vigor benih yang lebih tinggi dari varietas Burangrang berdasarkan variabel indeks vigor dan daya berkecambah. Varietas Anjasmoro dan Grobogan tanpa pemupukan menghasilkan vigor yang lebih rendah dibandingkan dengan penambahan dosis pupuk rekomendasi (100 dan 150 kg/ha) dan diatas rekomendasi (200 dan 250 kg/ha) berdasrkan variavel kecepatan perkecmabahan dan indeks vigor. Varietas Grobogan dengan penambahan dosis rekomendasi (100 kg/ha) memiliki vigor benih yang paling tinggi dibandingkan perbandingan lainnya.

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Evaluation of Road Utilisation as Space For Holding Social Ceremonies in Indigenous Residential Area of Ogbomoso, Nigeria

LAUTECH Journal of Civil and Environmental Studies ◽

10.36108/laujoces/8102/10(0131) ◽

2018 ◽

Vol 1 (March 2018) ◽

Author(s):

S.A Okanlawon ◽

O.O Odunjo ◽

S.A Olaniyan

Keyword(s):

Transport Infrastructure ◽

Noisy Environment ◽

Policy Makers ◽

The Core ◽

Local Roads ◽

Strict Enforcement ◽

The Mean ◽

The One ◽

The City ◽

The Town

This study examined Residents’ evaluation of turning transport infrastructure (road) to spaces for holding social ceremonies in the indigenous residential zone of Ogbomoso, Oyo State, Nigeria. Upon stratifying the city into the three identifiable zones, the core, otherwise known as the indigenous residential zone was isolated for study. Of the twenty (20) political wards in the two local government areas of the town, fifteen (15) wards that were located in the indigenous zone constituted the study area. Respondents were selected along one out of every three (33.3%) of the Trunk — C (local) roads being the one mostly used for the purpose in the study area. The respondents were the residents, commercial motorists, commercial motorcyclists, and celebrants. Six hundred and forty-two (642) copies of questionnaire were administered and harvested on the spot. The Mean Analysis generated from the respondents’ rating of twelve perceived hazards listed in the questionnaire were then used to determine respondents’ most highly rated perceived consequences of the practice. These were noisy environment, Blockage of drainage by waste, and Endangering the life of the sick on the way to hospital; the most highly rated reasons why the practice came into being; and level of acceptability of the practice which was found to be very unacceptable in the study area. Policy makers should therefore focus their attention on strict enforcement of the law prohibiting the practice in order to ensure more cordial relationship among the citizenry, seeing citizens’ unacceptability of the practice in the study area.

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Understanding the CoVID-19 pandemic Curve through statistical approach (Preprint)

10.2196/preprints.22675 ◽

2020 ◽

Author(s):

Ibrar Ul Hassan Akhtar

Keyword(s):

Probability Density ◽

Change Point ◽

Statistical Approach ◽

Sudden Change ◽

Global Scale ◽

Change Point Detection ◽

Segment Length ◽

Infected Population ◽

The Mean ◽

Point Detection

UNSTRUCTURED Current research is an attempt to understand the CoVID-19 pandemic curve through statistical approach of probability density function with associated skewness and kurtosis measures, change point detection and polynomial fitting to estimate infected population along with 30 days projection. The pandemic curve has been explored for above average affected countries, six regions and global scale during 64 days of 22nd January to 24th March, 2020. The global cases infection as well as recovery rate curves remained in the ranged of 0 ‒ 9.89 and 0 ‒ 8.89%, respectively. The confirmed cases probability density curve is high positive skewed and leptokurtic with mean global infected daily population of 6620. The recovered cases showed bimodal positive skewed curve of leptokurtic type with daily recovery of 1708. The change point detection helped to understand the CoVID-19 curve in term of sudden change in term of mean or mean with variance. This pointed out disease curve is consist of three phases and last segment that varies in term of day lengths. The mean with variance based change detection is better in differentiating phases and associated segment length as compared to mean. Global infected population might rise in the range of 0.750 to 4.680 million by 24th April 2020, depending upon the pandemic curve progress beyond 24th March, 2020. Expected most affected countries will be USA, Italy, China, Spain, Germany, France, Switzerland, Iran and UK with at least infected population of over 0.100 million. Infected population polynomial projection errors remained in the range of -78.8 to 49.0%.

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SAT0267 ROLE OF AGGRESSIVE IMMUNOSUPPRESSION ON SUBGLOTTIC STENOSIS IN GRANULOMATOSIS WITH POLYANGIITIS: RETROSPECTIVE ANALYSIS OF A MONOCENTRIC COHORT

Annals of the Rheumatic Diseases ◽

10.1136/annrheumdis-2020-eular.2582 ◽

2020 ◽

Vol 79 (Suppl 1) ◽

pp. 1076.1-1077

Author(s):

L. Moroni ◽

L. Giudice ◽

G. A. Ramirez ◽

S. Sartorelli ◽

A. Cariddi ◽

...

Keyword(s):

Medical Treatment ◽

Clinical Characteristics ◽

Granulomatosis With Polyangiitis ◽

Balloon Catheter ◽

Subglottic Stenosis ◽

Damage Accrual ◽

The Mean ◽

The One

Background:Subglottic stenosis (SGS) is defined as airway narrowing below the vocal cords and is a common and potentially life-threatening manifestation of Granulomatosis with Polyangiitis (GPA), with an estimated prevalence of 16-23% (1). Balloon catheter dilation is effective in GPA-related SGS, but relapses are frequent. Little is known about the role of immunosuppression in this setting.Objectives:to analyse the clinical characteristics of a monocentric GPA cohort, describe phenotype differences among patients with and without SGS and investigate the role of surgical and medical treatments on relapse risk and general outcome.Methods:Biopsy-proven patients with SGS were identified by review of medical charts among a cohort of patients with GPA, classified according to the algorithm of the European Medicine Agency (2). The clinical characteristics of patients with SGS were retrospectively collected over a median follow-up time of 15.9 years and compared to those of patients without SGS.Results:Fourteen patients with SGS-GPA were identified, with a female to male ratio of 1:1 and a prevalence of 29.2% among the cohort. The mean ± SD age at GPA onset was 30.8 ± 14.4 years, with a mean time from GPA diagnosis to SGS onset of 4.7 ± 4.2 years. ANCA were positive in 78.6% (54.0% anti-PR3, 18.1% anti-MPO and 27.9% IFI only). The mean Birmingham Vasculitis Activity Score (BVAS) at onset was 10.0 ± 5.6. The main clinical manifestations associated with SGS were crusty rhinitis (100%), sinusitis (78%), pulmonary disease (72.7%), otitis/mastoiditis (50%), glomerulonephritis (42.9%), orbital pseudotumor (28.6%). Six patients (42.9%) received medical treatment only, other six (42.9%) had one to three balloon dilations and two (14.2%) underwent four or more procedures. Eight patients had no SGS relapse (maximum one dilation) and they all received immunosuppression with rituximab (RTX), cyclophosphamide (CYC) or azathioprine (AZA). All patients who received no immunosuppression, methotrexate (MTX) or mycophenolate (MMF) had at least one relapse. Patients treated with MTX or MMF had a mean relapse-free survival of 13.1 months, which was comparable to the one of patients not receiving medical treatment (40.2 months; p=NS) and shorter than the one of patients receiving CYC or RTX (153.2 months; p=0.032). CYC use also inversely correlated with the number of surgical procedures (r=-0.691, p=0.006). Compared to patients without SGS (31 consecutive patients with at least 4 years of follow-up), patients with SGS-GPA had an earlier disease onset (mean age 30.8 vs 50.4 years; p<0.001), but with lower BVAS (mean 10.0 vs 15.3; p=0.013) and showed a higher prevalence of crusty rhinitis (100% vs 67.7%; p=0.019). No difference was observed in damage accrual over time between the two groups.Conclusion:Subglottic stenosis is highly prevalent in patients with GPA and may define a milder disease subset occurring more frequently in younger patients. MTX and MMF might be insufficient to prevent SGS relapses requiring balloon dilation. Aggressive immunosuppression (CYC or RTX) might have a non-redundant role in this setting and reduce the risk of relapses.References:[1]Quinn KA, et al. Subglottic stenosis and endobronchial disease in granulomatosis with polyangiitis. Rheumatology 2019; 58 (12), 2203-2211.[2]Watts R, et al. Development and validation of a consensus methodology for the classification of the ANCA associated vasculitides and polyarteritis nodosa for epidemiological studies. Ann Rheum Dis 2007; 66: 222-7.Disclosure of Interests:Luca Moroni: None declared, Laura Giudice: None declared, Giuseppe Alvise Ramirez: None declared, Silvia Sartorelli: None declared, adriana cariddi: None declared, Angelo Carretta: None declared, Enrica Bozzolo: None declared, Lorenzo Dagna Grant/research support from: The Unit of Immunology, Rheumatology, Allergy and Rare Diseases (UnIRAR) received unresctricted research/educational grants from Abbvie, Bristol-Myers Squibb, Celgene, Janssen, Merk Sharp & Dohme, Mundipharma Pharmaceuticals, Novartis, Pfizer, Roche, Sanofi-Genzyme, and SOBI., Consultant of: Prof Lorenzo Dagna received consultation honoraria from Abbvie, Amgen, Biogen, Bristol-Myers Squibb, Celltrion, Novartis, Pfizer, Roche, Sanofi-Genzyme, and SOBI.

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Two-term expansion of the ground state one-body density matrix of a mean-field Bose gas

Calculus of Variations and Partial Differential Equations ◽

10.1007/s00526-021-01954-2 ◽

2021 ◽

Vol 60 (3) ◽

Author(s):

Phan Thành Nam ◽

Marcin Napiórkowski

Keyword(s):

Density Matrix ◽

Ground State ◽

Mean Field ◽

Interaction Strength ◽

Bose Gas ◽

Body Density ◽

The Mean ◽

The One ◽

Mean Field Regime ◽

Number Of Particles

AbstractWe consider the homogeneous Bose gas on a unit torus in the mean-field regime when the interaction strength is proportional to the inverse of the particle number. In the limit when the number of particles becomes large, we derive a two-term expansion of the one-body density matrix of the ground state. The proof is based on a cubic correction to Bogoliubov’s approximation of the ground state energy and the ground state.

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Acute bilateral foot drop with or without cauda equina syndrome—a case series

Acta Neurochirurgica ◽

10.1007/s00701-021-04735-0 ◽

2021 ◽

Vol 163 (4) ◽

pp. 1191-1198

Author(s):

Andreas K. Demetriades ◽

Marco Mancuso-Marcello ◽

Asfand Baig Mirza ◽

Joseph Frantzias ◽

David A. Bell ◽

...

Keyword(s):

Cauda Equina Syndrome ◽

Cauda Equina ◽

Case Series ◽

Foot Drop ◽

Spinal Disease ◽

Full Resolution ◽

Degenerative Spinal Disease ◽

The Mean ◽

The One

Abstract Introduction Isolated acute bilateral foot drop due to degenerative spine disease is an extremely rare neurosurgical presentation, whilst the literature is rich with accounts of chronic bilateral foot drop occurring as a sequela of systemic illnesses. We present, to our knowledge, the largest case series of acute bilateral foot drop, with trauma and relevant systemic illness excluded. Methods Data from three different centres had been collected at the time of historic treatment, and records were subsequently reviewed retrospectively, documenting the clinical presentation, radiological level of compression, timing of surgery, and degree of neurological recovery. Results Seven patients are presented. The mean age at presentation was 52.1 years (range 41–66). All patients but one were male. All had a painful radiculopathic presentation. Relevant discopathy was observed from L2/3 to L5/S1, the commonest level being L3/4. Five were treated within 24 h of presentation, and two within 48 h. Three had concomitant cauda equina syndrome; of these, the first two made a full motor recovery, one by 6 weeks follow-up and the second on the same-day post-op evaluation. Overall, five out of seven cases had full resolution of their ankle dorsiflexion pareses. One patient with 1/5 power has not improved. Another with 1/5 weakness improved to normal on the one side and to 3/5 on the other. Conclusion When bilateral foot drop occurs acutely, we encourage the consideration of degenerative spinal disease. Relevant discopathy was observed from L2/3 to L5/S1; aberrant innervation may be at play. Cauda equina syndrome is not necessarily associated with acute bilateral foot drop. The prognosis seems to be pretty good with respect to recovery of the foot drop, especially if partial at presentation and if treated within 48 h.

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Helium, [Fe/H] Abundances and the HR (Log TEFF, MBol) Diagram With Hipparcos Data of The Four Nearest Open Clusters: Hyades, Coma Berenices, The Pleiades and Praesepe

Highlights of Astronomy ◽

10.1017/s1539299600022206 ◽

1998 ◽

Vol 11 (1) ◽

pp. 565-565

Author(s):

G. Cayrel de Strobel ◽

R. Cayrel ◽

Y. Lebreton

Keyword(s):

Main Sequence ◽

Open Clusters ◽

Main Sequence Stars ◽

Spectroscopic Analyses ◽

Solar Metallicity ◽

Metal Abundances ◽

The Mean ◽

The Moment ◽

The One ◽

Best Fit

After having studied in great detail the observational HR diagram (log Teff, Mbol) composed by 40 main sequence stars of the Hyades (Perryman et al.,1997, A&A., in press), we have tried to apply the same method to the observational main sequences of the three next nearest open clusters: Coma Berenices, the Pleiades, and Praesepe. This method consists in comparing the observational main sequence of the clusters with a grid of theoretical ZAMSs. The stars composing the observational main sequences had to have reliable absolute bolometric magnitudes, coming all from individual Hipparcos parallaxes, precise bolometric corrections, effective temperatures and metal abundances from high resolution detailed spectroscopic analyses. If we assume, following the work by Fernandez et al. (1996, A&A,311,127), that the mixing-lenth parameter is solar, the position of a theoretical ZAMS, in the (log Teff, Mbol) plane, computed with given input physics, only depends on two free parameters: the He content Y by mass, and the metallicity Z by mass. If effective temperature and metallicity of the constituting stars of the 4 clusters are previously known by means of detailed analyses, one can deduce their helium abundances by means of an appropriate grid of theoretical ZAMS’s. The comparison between the empirical (log Teff, Mbol) main sequence of the Hyades and the computed ZAMS corresponding to the observed metallicity Z of the Hyades (Z= 0.0240 ± 0.0085) gives a He abundance for the Hyades, Y= 0.26 ± 0.02. Our interpretation, concerning the observational position of the main sequence of the three nearest clusters after the Hyades, is still under way and appears to be greatly more difficult than for the Hyades. For the moment we can say that: ‒ The 15 dwarfs analysed in detailed in Coma have a solar metallicity: [Fe/H] = -0.05 ± 0.06. However, their observational main sequence fit better with the Hyades ZAMS. ‒ The mean metallicity of 13 Pleiades dwarfs analysed in detail is solar. A metal deficient and He normal ZAMS would fit better. But, a warning for absorption in the Pleiades has to be recalled. ‒ The upper main sequence of Praesepe, (the more distant cluster: 180 pc) composed by 11 stars, analysed in detail, is the one which has the best fit with the Hyades ZAMS. The deduced ‘turnoff age’ of the cluster is slightly higher than that of the Hyades: 0.8 Gyr instead of 0.63 Gyr.

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Toroidal plasma configuration with anisotropic pressure

Journal of Plasma Physics ◽

10.1017/s0022377800012526 ◽

1987 ◽

Vol 38 (2) ◽

pp. 209-222 ◽

Cited By ~ 6

Author(s):

Hussain M. Rizk

Keyword(s):

General Expression ◽

Magnetic Surface ◽

Anisotropic Pressure ◽

Mean Velocity ◽

Magnetohydrodynamic Equation ◽

Toroidal Plasma ◽

Hydrodynamic Calculations ◽

The Mean ◽

The One ◽

Plasma Configuration

The relation between various surface quantities required in hydrodynamic calculations, and the relation between the parallel and perpendicular currents in an arbitrary magnetic toroidal plasma configuration with scalar pressure, are generalized to the case of anisotropic pressure. Magnetic co-ordinates for hydrodynamic equilibria in this configuration are defined. A general expression for the mean velocity of diffusion through a magnetic surface, on the basis of the one-fluid magnetohydrodynamic equation with anisotropic pressure, is derived.

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A comparison of two methods for predicting changes in the distribution of gene frequency when selection is applied repeatedly to a finite population

Genetics Research ◽

10.1017/s0016672300002834 ◽

1969 ◽

Vol 13 (2) ◽

pp. 117-126 ◽

Cited By ~ 3

Author(s):

Derek J. Pike

Keyword(s):

Iterative Procedure ◽

Gene Frequency ◽

Finite Population ◽

Transition Matrices ◽

Single Cycle ◽

Gene Frequencies ◽

Mean And Variance ◽

The Mean ◽

The One ◽

Selection Of

Robertson (1960) used probability transition matrices to estimate changes in gene frequency when sampling and selection are applied to a finite population. Curnow & Baker (1968) used Kojima's (1961) approximate formulae for the mean and variance of the change in gene frequency from a single cycle of selection applied to a finite population to develop an iterative procedure for studying the effects of repeated cycles of selection and regeneration. To do this they assumed a beta distribution for the unfixed gene frequencies at each generation.These two methods are discussed and a result used in Kojima's paper is proved. A number of sets of calculations are carried out using both methods and the results are compared to assess the accuracy of Curnow & Baker's method in relation to Robertson's approach.It is found that the one real fault in the Curnow-Baker method is its tendency to fix too high a proportion of the genes, particularly when the initial gene frequency is near to a fixation point. This fault is largely overcome when more individuals are selected. For selection of eight or more individuals the Curnow-Baker method is very accurate and appreciably faster than the transition matrix method.

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Mean Temperature Difference Charts for Air Coolers

Journal of Heat Transfer ◽

10.1115/1.3245626 ◽

1983 ◽

Vol 105 (3) ◽

pp. 592-597 ◽

Cited By ~ 3

Author(s):

A. Pignotti ◽

G. O. Cordero

Keyword(s):

Heat Transfer ◽

Heat Capacity ◽

Temperature Difference ◽

Optimization Technique ◽

Independent Variables ◽

Mean Temperature ◽

Air Cooler ◽

The Mean ◽

The One ◽

Water Ratio

Computer generated graphs are presented for the mean temperature difference in typical air cooler configurations, covering the combinations of numbers of passes and rows per pass of industrial interest. Two sets of independent variables are included in the graphs: the conventional one (heat capacity water ratio and cold fluid effectiveness), and the one required in an optimization technique of widespread use (hot fluid effectiveness and the number of heat transfer units). Flow arrangements with side-by-side and over-and-under passes, frequently found in actual practice, are discussed through examples.

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