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摘要: style="text-align:justify;"> style="line-height:1.5;font-family:Verdana;">This study was conducted in gedarif research station farm for two seasons in 201 style="line-height:1.5;"> style="line-height:1.5;"> style="line-height:1.5;"> style="line-height:1.5;"> style="line-height:1.5;font-family:Verdana;">1 style="line-height:1.5;"> style="line-height:1.5;"> style="line-height:1.5;font-family:Verdana;"> and 2012. The objective was to find the relationship among genotypes yield from dry matter and rain fall amount and distribution. The results showed significant differences for the five types of maize at two parameters. This was indicated by number of leaves and dry weight. The results showed highly significant differences between the two species and the rest of the other on the both season 2011 and 2012. The study concluded that, maize varity and genotype can be used as indicators for plant yield and biomass as proved in the crop of the study. The study recommended that varity Hudiba I and Hudiba 2 can be used as practical mean to assess utilization level as expressed by growth performance indicators including dry matter and biomass from maize varity forage crop.
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摘要: align="justify"> style="font-family:Verdana;">Hydrometallurgical recycling of lead from zinc plant residue which occurs at leaching plant has been investigated. After determination of optimum parameters in the brine leaching stage, the pregnant solution was proposed on cementation process by Aluminum powder and parameters (time, temperature, initial pH of solution, initial lead content of solution, Al:Pb fraction, stirring velocity) were investigated and optimized.

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摘要: style="text-align:justify;"> style="line-height:1.5;font-family:Verdana;">In this present work, a computational code is developed to solve a laminar two-dimensional lid driven cavity flow with inclined side wall. SIMPLE (Semi-Implicit Method for Pressure-Linked Equation) algorithm based on finite volume method on staggered grid has been used. Differed QUICK (Quadratic Upstream Interpolation for Convective Kinematics) schemes have been implemented for all calculations. The results are presented for inclination angle style="line-height:1.5;"> style="font-family:Verdana;">β style="line-height:1.5;font-family:Verdana;"> = 30°, 45° and Re = 100, 1000 and are compared with Demirdzic style="line-height:1.5;"> style="font-family:Verdana;">et al. style="line-height:1.5;font-family:Verdana;"> benchmark solution. By comparison, it is found that the results are in very good agreement with the benchmark solution for Re = 100. But the results are close to the benchmark solution for Re = 1000.
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摘要: style="text-align:justify;"> style="font-family:Verdana;line-height:1.5;">The distribution of polyaromatic hydrocarbons (PAHs) at different georeferenced sampling points: Nwata A, Nwata B, Nwata 3', Ochani and Eyeyaro in one of the most contaminated mangrove swamp in Nigeria, Ejamah-Ebubu oil spill site was studied. The physico-chemical analysis of the sediment samples and trace metals were also conducted. PAHs were analyzed using gas-chroma-tography flame ionization detection while metals with atomic absorption spectrophotometry (AAS). The result showed that the total PAHs (summation of 16 US EPA priority PAHs) were present at all sampling points and the concentration ranged from 0.070 to 5.521 ppm with Nwatu A > Nwatu B > Ochani > Egeyaro > Nwatu 3'. The pH of the site is acidic. The concentration of trace metals for most sampling points is iron > chromium > lead > nickel > vanadium. Our result indicates that the concentration of PAHs is at level higher than the permitted level therefore; it is recommended that Ejamah-Ebubu oil spill site be remediated.
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摘要: style="line-height:1.5;text-align:justify;white-space:normal;">Despite their small size, the French West Indies are characterised by a large number of environments supporting a surprisingly high floristic, ecosystem and landscape diversity. From the foundation of dwelling groups, beginning in the 17th century to the present day, human activities have resulted in the sharp decline of the forest areas. To some extent, the Caribbean forest has become “insularized”. Originally, these fo style="line-height:1.5;text-align:justify;white-space:normal;">rests covered the entire islands from the coast to circa 800 meters of altitude, where the environmental conditions permitted the development of forest biocenosis. Survival space for the American Indians and early settlers, despite its gradual weakening and its spatial regression in the 18th and the 19th century and in the first half of the 20th century, the forest ecosystem represented a place of high exploitation of the wood resources in principal for energy, carpentry, cabinetmaking, housing and industry linked to profit-generating crops (sugar cane). Unlike the pre-colonial period where the tree was predominant, the present vegetation is dominated by regressive communities, consisting of shrub and herbaceous communities. Since their origin, the Lesser Antilles have represented special objects of study for naturalists, botanists and systematics scholars, especially concerning the forest ecosystems. They are also true laboratories for the study of vegetation dynamics and the evolution of the man-environment relationships where the landscape is a relevant descriptor. This article aims to show the evolution of knowledge of the structures, functions and spatiotemporal dynamics of the plant ecosystems of the Lesser Antilles. The biocenotic diversity of the vegetation of the islands required the knowledge of species, associations they represent and the bioclimates who influence them. In this context Martinique is a significant example of the ecosystem complexity under anthropogenic stresses....
摘要: style="text-align:justify;"> style="font-family:Verdana;line-height:1.5;">Introduction: Liver cirrhosis (LC) is a major cause of mortality and morbidity in the United States. American Association for the Study of Liver Disease (AASLD) has developed guidelines for the management of patients with LC. Methods: We conducted a one-year retrospective chart review study of patients admitted with LC related complication. Our primary outcome was adherence to AASLD guidelines for the management of variceal bleeding (VB), fluid overload and hepatocellular carcinoma (HCC) screening, and secondary outcome was re-admission rate within 30 days of discharge. Results: A total of 139 patients were reviewed. Majority were males (65%) and Caucasians (65%). The admission indication was mainly for fluid overload (39%), hepatic encephalopathy (36%) and VB (27%). The one-month readmission rate was 31%, of those 47% and 37% were admitted for hepatic encephalopathy and fluid overload respectively. Periodic screening for HCC was done in only 40% of patients. Ninety-five percent of patients admitted with VB received PPI, octreotride and antibiotics. Diet education was only documented in 9% of patients on discharge. Significant predictors for 30-day readmission included high MELD score, elevated creatinine, and taking diuretics/lactulose before hospitalization in addition to shorter length of stay. Conclusion: Compliance with AASLD guidelines was optimal for patients with VB. Further optimization is required for HCC screening and patient education. Multiple factors play a role in readmissions for patients with cirrhosis; this model helps to identify patients at risk for readmission and opens an area for quality improvement measures to avoid unnecessary hospitalizations.
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摘要:The structure and formation energies of cation antisite defects for a series of stannate pyrochlores A2Sn2O7 (A = La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Lu, and Y) and titanate pyrochlores A2Ti2O7 (A = La, Sm, Gd, Tb, Dy, Ho, Er, Lu, and Y) have been systematically investigated using the first-principles total energy calculations. The calculated results reveal that the lattice parameters increase and the oxygen positional parameters decrease with increasing ionic radii of the lanthanides in the stannate and titanate pyrochlore compounds, respectively. The results suggest that cation antisite defects in pyrochlore play an important role in determining their radiation-resistant properties. The present studies indicate formation energies of cation antisite defects are not simple functions of ionic radius, radius ratio, lattice parameters, and the oxygen positional parameters....
摘要: style="text-align:justify;"> style="font-family:Verdana;line-height:1.5;">We study the relation between hidden variables theories and quantum computation. We discuss an inconsistency between a hidden variables theory and controllability of quantum computation. To derive the inconsistency, we use the maximum value of the square of an expected value. We propose a solution of the problem by using new hidden variables theory. Also we discuss an inconsistency between hidden variables theories and the double-slit experiment as the most basic experiment in quantum mechanics. This experiment can be an easy detector to Pauli observable. We cannot accept hidden variables theories to simulate the double-slit experiment in a specific case. Hidden variables theories may not depicture quantum detector. This is a quantum measurement theoretical profound problem.
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摘要: style="text-align:justify;"> style="font-family:Verdana;line-height:1.5;">Introduction: Natural earth's magnetic field (EMF) is promoter of mother cell division into two daughter cells. Cancer is a cell that divides unlimited and destroys the body. Aim: Measurements presented in this paper show that malignant diseases are formed in anomalous magnetic fields (AMF) in patient's beds. Removal of patients from AMF explains the etiological uncertainties in the medical literature. Methods: Measuring of AMF in patients' beds was performed by proton magnetometer. Measuring points are on square net, 10 × 10 cm. The results are shown with contour lines on drawings. The health status of residence in the Earth's natural magnetic field (EMF) was monitored. The etiologic data from the literature are explained. Results: Research lasted 25 years. AMF were measured in 1500 patients' beds. There was a correlation between AMF and location of the diseased organ. AMF surfaces were shown in beds where the diseased organ is, on the contrary, there were natural values of EMF in the rest of the bed surface. Furthermore, the results found that three cases of breast cancer with metastases survived after surgical interventions and subsequent removal into natural EMF in contrast to 26 cases with the same diagnosis and surgical interventions who died after short period and staying in AMF. Another example was brain malignancy, which was decreased by living in natural EMF for one year. Conclusion: Based on the results of measurement of AMF, the medical condition of the patient when staying in a natural EMF, and explanation of uncertainties etiologies, the main conclusion was: AMF is the main cause of the malignant diseases.
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摘要: style="text-align:justify;" align="justify"> style="font-family:Verdana;">Field experiment was conducted in 2014 to test the efficacy of different organic amendments on the control of root-knot nematode ( style="font-family:Verdana;">Meloidogyne style="font-family:Verdana;">spp.). The different materials are sole neem, sole poultry manure, and a combination of neem and poultry manure. Neem was applied at the rate of 160 g per plot, poultry manure was applied at the rate of 1120 g per plot, combination of neem and poultry manure was applied at 1280 g per plot and Furadan was applied at 16 g per plot. Non-amended plot served control. Results obtained showed a combination of neem and poultry manure that produced the highest nematode suppression with a population of 58.3, followed by sole neem and poultry manure that produced 81.7, 94.7 respectively. This is compared to the chemical nematicide, Furadan that produced the least population of 41.7. The control treatment produced the highest population of 226.7. Reduction in nematodes population was concomitant to increase in rice growth and yield parameters. Combination of neem and manure produced the highest rice yield of 108 g which is significantly not different from manure that produced 107 g of rice. Among the three experimental factors neem produced the least rice yield of 88.2 g. This is compared to Furadan that produces 140.7 g rice. The non-amended control treatment produced the smallest quantity of rice which is 66.5 g.

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摘要: style="text-align:justify;"> style="font-family:Verdana;line-height:1.5;">This paper aims to determine the groundwater quality at Najran town and nearby villages, Kingdom of Saudi Arabia. Physical and chemical analyses have been carried out for seven groundwater samples collected from Najran area. This study indicates that the groundwater quality in the study area is fit for human purposes except at few localities which contain high amounts of total dissolved solids (TDS) and electrical conductivity (EC) above the permissible limits of the World Health Organization standards. The groundwater is also fit for irrigation purpose and agricultural use.
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摘要: style="text-align:justify;"> style="font-family:Verdana;line-height:1.5;">Morphological characteristics describe a person on the basis of morphological (anthropometric) traits that are determined by anthropometric measurement techniques. The morphological structure of the entire psychosomatic status of a person means a system of basic anthropometric latent dimensions obtained from a series of manifest variables. In modern anthropometry, using factor analysis for data processing, four main factors or dimensionalities of the human body have been identified: longitudinal dimensionality, transversal dimensionality, circular dimensionality, and body mass and subcutaneous adipose tissue. As there are high correlations between these dimensions, constitutional types have been defined, making it possible to classify the human population by a particular morphological pattern.
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摘要: style="text-align:justify;"> style="line-height:1.5;font-family:Verdana;">The aim of the present study was to evaluate the composition of fatty acids of mature seeds of some style="line-height:1.5;"> style="font-family:Verdana;">Acacia style="line-height:1.5;font-family:Verdana;"> taxa ( style="line-height:1.5;"> style="font-family:Verdana;">Acacia mellifera style="line-height:1.5;font-family:Verdana;">, style="line-height:1.5;"> style="font-family:Verdana;">A style="line-height:1.5;font-family:Verdana;">. style="line-height:1.5;"> style="font-family:Verdana;">nilotica style="line-height:1.5;font-family:Verdana;">ssp style="line-height:1.5;"> style="font-family:Verdana;">. adansonia style="line-height:1.5;font-family:Verdana;">, style="line-height:1.5;"> style="font-family:Verdana;">A. nilotica style="line-height:1.5;font-family:Verdana;">ssp style="line-height:1.5;"> style="font-family:Verdana;">. nilotica style="line-height:1.5;font-family:Verdana;">, style="line-height:1.5;"> style="font-family:Verdana;">A. oerfota style="line-height:1.5;font-family:Verdana;">, style="line-height:1.5;"> style="font-family:Verdana;">A. polycantha style="line-height:1.5;font-family:Verdana;">ssp. style="line-height:1.5;"> style="font-family:Verdana;">campylacantha style="line-height:1.5;font-family:Verdana;">, style="line-height:1.5;"> style="font-family:Verdana;"> A. enegal style="line-height:1.5;font-family:Verdana;">var. style="line-height:1.5;"> style="font-family:Verdana;">senegal style="line-height:1.5;font-family:Verdana;">, style="line-height:1.5;"> style="font-family:Verdana;"> A. seyal style="line-height:1.5;font-family:Verdana;">var. style="line-height:1.5;"> style="font-family:Verdana;">seyal style="line-height:1.5;font-family:Verdana;"> and style="line-height:1.5;"> style="font-family:Verdana;">A style="line-height:1.5;font-family:Verdana;">. style="line-height:1.5;"> style="font-family:Verdana;">sieberiana style="line-height:1.5;font-family:Verdana;">var. style="line-height:1.5;"> style="font-family:Verdana;">sieberiana style="line-height:1.5;font-family:Verdana;">) from Central Sudan in order to reveal their potential classification to be used as taxonomic markers. Results showed that style="line-height:1.5;"> style="font-family:Verdana;">Acacia style="line-height:1.5;font-family:Verdana;"> seed oils were mainly unsaturated fatty acids ranging in content between 51.20% to 86.90%, ...
摘要: style="text-align:justify;"> style="font-family:Verdana;line-height:1.5;">Image is often easily polluted by noise in the process of image processing, so image de-noising is an important step in the field of image processing. Based on the wavelet threshold de-noising algorithm, an improved image de-noising algorithm based on wavelet and Wiener filter is proposed in this paper, which can effectively reduce the Gaussian white noise. Firstly we use wavelet soft threshold to reduce noise, then use Wiener filter to process the image and get the valuation of the image. Experimental results show that the proposed algorithm on image de-noising not only can effectively suppress Gaussian white noise, but also can well retain the details of image edges.
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摘要: style="text-align:justify;"> style="line-height:1.5;font-family:Verdana;">Breast cancer is the most frequently diagnosed cancer and the leading cause of cancer death in female's worldwide. Its incidence is on the ascendancy in Africa including Ghana. In addition, Ghanaian women are more likely to be diagnosed with high-grade tumours that are triple negative breast tumours. The objectives of the study were to investigate the clinicopathologic features of breast cancer in Ghanaian women; identify and describe breast cancer survival pattern in Ghana and factors that explain the disparity in survival rates for breast cancer by the use of Cox proportional hazard. Two thousand three hundred and ninety seven (2397) women were sampled for the study from the Korle-Bu Teaching Hospital (KBTH), of which 1022 (42.64%) were diagnosed with breast cancer between the periods 1 style="font-family:Verdana;">st style="line-height:1.5;font-family:Verdana;"> January 2002 to 31 style="font-family:Verdana;">st style="line-height:1.5;font-family:Verdana;"> December 2008. The cases were followed up to January 2011. It was found that Mean age for the cases was 47.97 years. The largest number of cases being 59.69% was aged 40 - 49 years. Invasive Ductal Carcinoma (IDC) was 72.90%, 71.28% had lump size of 2-5 cm. Axillary lymph node involvement was found in 90% of the women diagnosed with breast cancer. 5-year cumulative survival was 91.94% for stage 0&I and 15.09% for stage IV. Data relating to tumour grading were 92.07% for high grade 2 and 3. Triple negative breast cancer was identified in 66.38% (77 out of 116) of the cases with complete information on Estrogen Receptor, Progesterone Receptor and HER2 status. Cumulative 5-year survival was 47.91. Survival rate was better for early staged presentation; lymph node involvement of less than 25% and tumour size of less than 5 cm. The study reinforces the urgent need for improved screening techniques for early detection, and for an aggressive health education campaign to increase the awareness of women in Ghana about the potential risk of breast cancer and early detection by regular testing.
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摘要: style="text-align:justify;"> style="line-height:1.5;font-family:Verdana;">In this paper, we study the distribution of the number of times that style="line-height:1.5;"> style="line-height:1.5;font-family:Verdana;">a finite capacity with equal servers Markovian queuing model catastrophic-cum-restorations reaches its capacity in time style="line-height:1.5;"> style="font-family:Verdana;">t style="line-height:1.5;font-family:Verdana;">. The occurrence of a catastrophe makes the system empty instantly but the system takes its own time to be ready to accept new customers. This time is referred to as “restoration time”. The aforesaid distribution is obtained as a marginal distribution of the joint distribution of the number of customers in the system at time style="line-height:1.5;"> style="font-family:Verdana;">t style="line-height:1.5;font-family:Verdana;"> and the number of times system reaches its capacity in time style="line-height:1.5;"> style="font-family:Verdana;">t style="line-height:1.5;font-family:Verdana;"> under the conditions of catastrophes and restorations.
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摘要:Objective: In order to describe maternal intranatal processes from a common psychosomatic perspective, the clinical notion of “intranatal regression” or “intranatal psychophysical withdrawal” was presented. However, this idea of an underlying mode of experience pervading the birthing process has never been explored systematically. We further elaborated on this notion by introducing the concept of Intranatal Inward Orientation (IIO), supporting a psychosomatic approach in modern obstetrics. Methods: 73 first-time mothers were interviewed 3 - 4 days postpartum. IIO was evaluated on four axes of perceptions: a changing sense 1) of time, 2) of space, 3) of attachment, and 4) a change in the predominant communication style with significant others (partners, midwives). In addition, other subjective variables (questionnaires) and obstetric variables were assessed. Results: A one-factor solution (Eigen-value of >1.0) provides firm statistical support for IIO as a consistently integrated scale (C'alpha 0.74). Inter-rater reliability is very good (Intraclass correlation 0.83). IIO is independent of other subjective qualities, like anxiety, coping, and control. IIO is correlated with fewer epidural blocks. Likewise high IIO is more frequently associated with a low birth complication profile (spontaneous delivery, not longer than 12 hours, no oxytocin for augmentation of labour, and no epidural block). Conclusion: IIO is a promising psychosomatic concept. It supports the idea of a psychological, relationship- and interaction-oriented approach to promote more natural childbirth. It may also lead to a better understanding of the emerging of a traumatic birth experience. Further elaboration of the concept is recommended....
摘要: style="text-align:justify;"> style="font-family:Verdana;line-height:1.5;">We show that the Schwarzschild solution can be embedded in a class of nonstandard solutions of the vacuum Einstein's equations with arbitrary rotation curves. These nonstandard solutions have to be taken as physical, if dark matter as needed in the standard theory cannot be found. As a consequence general relativity is considered as a classical field theory in Minkowski space and not as a geometric theory in the sense of Einstein. Assuming an asymptotically flat rotation curve and introducing a material disk into this model we find a matter density in accordance with the Tully-Fisher relation.
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摘要: style="text-align:justify;"> style="font-family:Verdana;line-height:1.5;">Mine tailings (MT) have been used in previous studies as substitute construction material to recycle waste products, especially in hollow blocks and bricks production and as masonry mortar. This study investigated the use of Philex copper-gold mine tailings (PCGMT) in roller compacted concrete (RCC) production, a mining waste material consisting of finely grinded siliceous particles was obtained from Tailings Pond number 2 (TP2) of a Philippine copper and gold mining company. A comprehensive experimental program was conducted to investigate the comparative compressive strength of RCC containing Porac sand (RCCPS) and RCC with copper-gold mine tailings (RCCCGMT), and the durability of RCC with copper-gold mine tailings and fly-ash (RCCCGMTFA). Varying mixtures of RCCPS and RCCCGMT with very low, low, medium, and high cement contents were casted and tested. The compressive strength attained at 28 days by RCCPS and RCCCGMT ranges from 17 to 37 Mega Pascal (MPa) and 17 to 28 Mpa, respectively. The obtained values indicate that the latter requires greater amount of cement and the mixtures with compressive strength values greater than 25 Mpa are acceptable for concrete pavement use. The durability of RCCCGMTFA with medium cement content was evaluated by subjecting the specimens to an alternate wetting and drying cycles. After 15 cycles, a remaining strength of 18.7 MPa was obtained which indicated that it could endure stresses due to weather changes in the Philippines. Results show that PCGMT in TP2 are viable sand or fine aggregates substitute in RCC.
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摘要: style="text-align:justify;"> style="font-family:Verdana;line-height:1.5;">This paper focuses on the duplex stainless steel processability and presents many practical technological approaches which are applied in many steel companies on how to improve the processability. First, take into consideration an appropriate hot working temperature; second, make sure cooling rate higher than 15℃/s; and third, conduct annealing treatment before delivery.
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