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Effects of drip irrigation and cropping on soil salinity,ionic composition and waxy corn production in a severely saline and calcareous and gypsiferous soil

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International Journal of Agricultural and Biological Engineering 2023年第5期16卷 142-154页

作者： Junli Tan Yaohu Kang Yanping Jiao Shuqin Wan Xina Wang Juncang Tian Ran Erel Alon Ben-gal School of Civil and Hydraulic Engineering Ningxia UniversityYinchuan 750021China Key laboratory of Water Cycle and Related and land Surface Processes Institute of Geographical Sciences and Natural Resource ResearchChinese Academy of SciencesBeijing 100101China Hebei Provincial Academy of Water Resources Shijiazhuang 050051China Institute of Soil Water and Environmental SciencesAgricultural Research OrganizationGilat Research Center85280 moblie post NegevIsrael

Drip technologies have been suggested as practical for irrigation under conditions of high salinity and for reclamation of saline *** irrigation triggered by soil water potential thresholds was applied to both reclaim a severely saline calcareous gypsiferous soil and irrigate a waxy corn crop(Zea mays *** Kulesh).However,there is a lack of knowledge on the sustainability of reclamation of saline soils with drip irrigation and the changes in soil salinity and salt ion composition during the amelioration ***,effects on soil salinity,its ionic composition,and on crop growth and yields were evaluated in an experiment conducted in the Yinchuan Plain,northwest *** included fields in their first to fourth years of the drip irrigation reclamation-cropping scheme and adjacent native,non-cropped or irrigated salinesodic land as *** of waxy corn increased and days of growth to maturity decreased as a function of time and reclamation *** improvement in crop performance could be largely credited to the reduction of soil salinity and changes in salt composition under the drip-irrigated reclamation *** drip irrigation regime created a region of low salinity proximal to the emitters conducive to germination and plant *** ions for crop growth such as Na+and Cl^(-)were reduced while ca2+and Mg2+concentration increased,especially in the upper 40 cm of *** only a single season of drip-irrigated waxy corn production,both Cl-SO_(4)^(2-)ratios and sodium adsorption ratio(SAR)decreased *** results suggested that drip irrigation is an effective technology for reclamation of severely saline-affected soils,such as those widely distributed over the Ningxia Plain in China and that this or similar reclamation strategy could be appropriate for reclamation of other hard to manage calcareous and gypsiferous soils.

关键词： soil salinity calcareous gypsiferous ion composition leaching salt transport

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Optimization of phenol degradation by candida tropicalis Z-04 using Plackett-Burman design and response surface methodology

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Journal of Environmental Sciences 2011年第1期23卷 22-30页

作者： Jiangya Zhou Xiaojuan Yu Cong Ding Zhiping Wang Qianqian Zhou Hao Pao Weimin ca School of Environmental Science and Engineering Shanghai Jiaotong University Dongchuan Road 800 Shanghai 200240 China.

Statistical experimental designs were used to optimize the process of phenol degradation by candida tropicalis Z-04, isolated from phenol-degrading aerobic granules. The most important factors influencing phenol degradation （p 〈 0.05）, as identified by a two-level Plackett-Burman design with 11 variables, were yeast extract, phenol, inoculum size, and temperature. Steepest ascent method was undertaken to determine the optimal regions of these four significant factors. Central composite design （CCD） and response surface analysis were adopted to further investigate the mutual interactions between these variables and to identify their optimal values that would generate maximum phenol degradation. The analysis results indicated that interactions between yeast extract and temperature, phenol and temperature, inocuhim size and temperature affected the response variable （phenol degradation） significantly. The predicted results showed that the maximum removal efficiency of phenol （99.10%） could be obtained under the optimum conditions of yeast extract 0.41 g/l, phenol 1.03 g/l, inoculum size 1.43% （V/V） and temperature 30.04℃. These predicted values were further verified by validation experiments. The excellent correlation between predicted and experimental values confirmed the validity and practicability of this statistical optimum strategy. This study indicated the excellent ability of C. tropicalis Z-04 in degrading high-strength phenol. Optimal conditions obtained in this experiment laid a solid foundation for further use of this microorganism in the treatment of highstrength phenol effluents.

关键词： phenol degradation candida tropicalis Z-04 optimization Plackett-Burman design response surface methodology

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具有Ruddlesden-Popper结构的杂化非本征铁电体(ca_(1-x)Sm_(x))_(3)Ti_(2)O_(7)陶瓷的制备及其物理性能

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天津师范大学学报（自然科学版） 2024年第2期44卷 19-25页

作者： MARCO Antonio lópez-Aguila 柳志旭王守宇黄聪刘卫芳天津大学理学院天津300350 天津师范大学物理与材料科学学院天津300387

为探究稀土离子掺杂对ca_(3)Ti_(2)O_(7)物理性能的调控,采用固相反应法制备了Sm^(3+)掺杂的(ca_(1-x)Sm_(x))_(3)Ti_(2)O_(7)(x=0,0.02,0.04)陶瓷样品,通过XRD、XPS、紫外-可见光吸收光谱以及第一性原理计算等方法对样品的晶体结构、... 详细信息

为探究稀土离子掺杂对ca_(3)Ti_(2)O_(7)物理性能的调控,采用固相反应法制备了Sm^(3+)掺杂的(ca_(1-x)Sm_(x))_(3)Ti_(2)O_(7)(x=0,0.02,0.04)陶瓷样品,通过XRD、XPS、紫外-可见光吸收光谱以及第一性原理计算等方法对样品的晶体结构、光学性能、电学性能和磁学性能进行分析.结果表明:随着Sm^(3+)含量的增加,(ca_(1-x)Sm_(x))_(3)Ti_(2)O_(7)的晶胞参数逐渐增大.Sm^(3+)掺杂导致氧空位减少,因此样品的漏电流随着Sm^(3+)掺杂量的增加而减小.同时,随着Sm^(3+)掺杂量的增加,样品的光学带隙呈现增大趋势.此外,第一性原理研究表明,Sm^(3+)掺杂可在体系中诱导出磁性能,进一步丰富了该材料的物理性能.

关键词： (ca_(1-x)Sm_(x))_(3)Ti_(2)O_(7)陶瓷铁电性氧空位光学带隙第一性原理

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Debaryomyces hansenii supplementation in low fish meal diets promotes growth,modulates microbiota and enhances intestinal condition in juvenile marine fish

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Journal of Animal Science and Biotechnology 2024年第1期15卷 253-276页

作者： Ignasi Sanahuja Alberto Ruiz Joana P.Firmino Felipe E.Reyes-lópez Juan B.Ortiz-Delgado Eva Vallejos-Vidal lluis Tort Dariel Tovar-Ramírez Isabel M.Cerezo Miguel A.Moriñigo carmen Sarasquete Enric Gisbert Aquaculture Program Institute of Agrifood Research and Technology(IRTA)La Rapita 43540Spain Centro de Biotecnologia Acuicola Universidad de Santiago de ChileSantiagoChile Instituto de Ciencias Marinas de Andalucia(ICMAN-CSIC) Avda.Republica Saharaui no 2Campus Universitario Rio San PedroPuerto RealCadiz 11510Spain Nucleo de Investigaciones Apl.cadas en Ciencias Veterinarias y Agronomicas Facultad de Medicina Veterinaria y AgronomiaUniversidad de Las AmericasSantiagoChile Department of Cell Biology Physiologyand ImmunologyUniversitat Autonoma de BarcelonaBarcelonaSpain Centro de Investigaciones Biologicas del Noroeste SC CIBNORLa PazMexico Department of Microbiology Instituto de Biotecnologia Y Desarrollo Azul(IBYDA)Faculty of SciencesUniversity of Malaga29010 MalagaSpain SCBI Bioinformatic UnitUniversity of Malaga29590 MalagaSpain

Background The development of a sustainable business model with social acceptance,makes necessary to develop new strategies to guarantee the growth,health,and well-being of farmed *** hansenii is a yeast species that can be used as a probiotic in aquaculture due to its capacity to i)promote cell proliferation and differen-tiation,ii)have immunostimulatory effects,iii)modulate gut microbiota,and/or iv)enhance the digestive *** provide inside into the effects of *** on juveniles of gilthead seabream(Sparus aurata)condition,we inte-grated the evaluation of the main key performance indicators coupled with the integrative analysis of the intestine condition,through histological and microbiota state,and its transcriptomic *** After 70 days of a nutritional trial in which a diet with low levels of fishmeal(7%)was supplemented with 1.1%of ***(17.2×10^(5) CFU),an increase of ca.12%in somatic growth was observed together with an improve-ment in feed conversion in fish fed a yeast-supplemented *** terms of intestinal condition,this probiotic modu-lated gut microbiota without affecting the intestine cell organization,whereas an increase in the staining intensity of mucins rich in carboxylated and weakly sulphated glycoconjugates coupled with changes in the affinity for certain lectins were noted in goblet *** in microbiota were characterized by the reduction in abundance of several groups of Proteobacteria,especially those characterized as opportunistic *** microarrays-based transcrip-tomic analysis found 232 differential expressed genes in the anterior-mid intestine of ***,that were mostly related to metabolic,antioxidant,immune,and symbiotic *** Dietary administration of *** enhanced somatic growth and improved feed efficiency param-eters,results that were coupled to an improvement of intestinal condition as histochemical and transcriptomic tools *** probiotic ye

关键词： Debaryomyces hansenii Intestine condition low fish meal diet Microbiota Transcriptomics Yeast probiotic

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弗氏盐法废水除氯产物资源化及二次利用进展

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过程工程学报 2024年第2期24卷 151-161页

作者：顾云储鹏葛冬冬黄寿强蒋敏吕红映张文欣吕杨杨吕扬张雅珩江苏理工学院资源与环境工程学院江苏常州213001 江苏昌吉利新能源科技有限公司江苏无锡214253 山东国舜建设集团有限公司山东济南250014

废水中高浓度氯离子不仅会腐蚀工业设备,还易污染水环境。目前,已报道了一系列去除废水中氯离子的技术,如膜分离或浓缩、蒸发结晶、化学沉淀、吸附、离子交换、电解、氧化和溶剂萃取等。化学沉淀法在设备投资和可操作性等方面具有较大... 详细信息

废水中高浓度氯离子不仅会腐蚀工业设备,还易污染水环境。目前,已报道了一系列去除废水中氯离子的技术,如膜分离或浓缩、蒸发结晶、化学沉淀、吸附、离子交换、电解、氧化和溶剂萃取等。化学沉淀法在设备投资和可操作性等方面具有较大的优势,其中,相对于基于银、铜或铋等除氯方法,弗氏盐沉淀除氯法因所用原料来源广、价格低而得到广泛研究。但弗氏盐沉淀除氯后会产生大量的化学污泥,这些污泥主要含有弗雷德盐(3caO·Al_(2)O_(3)·caCl_(2)·10H_(2)O)、加藤石[ca_(3)Al_(2)(OH)_(12)]和氢氧化钙等,成分复杂,循环再生难。为使弗氏盐沉淀除氯法能够推广应用,对其除氯产物,特别是其中的弗雷德盐进行资源化再利用至关重要。本工作在介绍弗雷德盐成分结构特性的基础上,通过比较弗雷德盐不同制备方法,突出弗氏盐沉淀法(如超高石灰铝法和钙铝石法)既能去除氯离子又能得到弗雷德盐的优势。根据弗雷德盐含铝和钙成分和层状双金属氢氧化物结构特性,可进行有效的资源化利用,包括去除各类重金属阳离子(如Cu^(2+),Cd^(2+),Co^(2+),Zn^(2+),Pb^(2+))和含氧阴离子[如Sb(OH)_(6)^(-),AsO_(4)^(3-),SeO_(4)^(2-),CrO_(4)^(2-)],并制备聚合氯化铝混凝剂、作为污泥脱水调理剂等,这些用途都具有广阔的应用前景,为弗氏盐沉淀除氯法的进一步发展提供借鉴和探索方向。

关键词：含氯废水弗氏盐沉淀法化学污泥弗雷德盐资源化再利用

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Neural activation while perceiving biological motion in dynamic facial expressions and point-light body action animations

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Neural Regeneration Research 2010年第14期5卷 1076-1083页

作者： lorna García Pentón Alejandro Pérez Fernández María A.Bobes león Yanely Acosta Ymas lídice galán García Yasser Iturria-Medina Sandra E.leh Mitchell Valdés-Sosa Cognitive Neuroscience laboratory Faculty of PsychologyUniversidad Diego Portales Basque Center on Cognition Brain and language Cognitive Department Cuban Neuroscience Center Neuroimaging Department Cuban Neuroscience Center Montreal Neurological Institute & Hospital

BACKGROUND： The interpretation of non-verbal social signals relies heavily on the ability to perceive biological motion. The posterior superior temporal sulcus is an important part of a network involved in biological motion processing. However, the underlying functional organization remains poorly understood. Several studies have suggested topographical representation of motion from different body parts within this region. However, other studies have shown that the posterior superior temporal sulcus responds equally to any body part. OBJECTIVE： Through the use of functional magnetic resonance imaging, the effects of socially relevant biological motion stimuli to activate a specific cortical area within posterior superior temporal sulcus, even if different body parts are involved in motion, will be analyzed. DESIGN, TIME AND SETTING： A functional magnetic resonance imaging, block-design was performed at the Magnetic Resonance Imaging, Surgical Medical Investigation Center, Havana, Cuba between 2004 and 2005. PARTICIPANTS： Thirteen healthy volunteers, from 19 to 55 years of age and compris!ng eight males and five females, were included in the study. METHODS： A conjunction analysis of responses to natural, dynamic, fearful, facial expressions and point-light, body-motion animations. MAIN OUTCOME MEASURES： The corresponding functionally specialized areas, as well as neural areas significant for both types of stimuli, were identified. RESUlTS： One region within the posterior superior temporal sulcus of the right hemisphere was equally activated by facial and body complex motion. CONClUSION： A site of common neural activity existed within the posterior superior temporal sulcus, which was not specific to a biological motion type. In addition, the activity was not related to a topographically organized body-part map, which suggested high-level visual representation of biological motion in this region.

关键词： human movement body movement dynamic faces emotional expressions common neural activation overlapped activations

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Changes in expression of inhibitory substances in the intramural neurons of the stomach following streptozotocininduced diabetes in the pig

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World Journal of Gastroenterology 2017年第33期23卷 6088-6099页

作者： Michal Bulc Katarzyna Palus lukasz Zielonka Magdalena Gajecka Jaroslaw całka Department of Clinical Physiology Faculty of Veterinary Medicine University of Warmia and Mazury Department of Veterinary Prevention and Feed Hygiene Faculty of Veterinary MedicineUniversity of Warmia and Mazury in Olsztyn

AIM Influence of chronic hyperglycemia on chemical coding of enteric neurons in stomach using pig as a model for human diabetic *** Ten pigs were divided into two groups: diabetic(D group,n = 5) and control(C group,n = 5). Pigs constituting the experimental group were given streptozotocin(150 mg/kg). Animals were euthanized six weeks after the induction of diabetes. The samples of stomach were collected from animals of both groups. The cryostat sections were processed for double immunofluorescence staining using primary antisera directed towards pan-neuronal marker(Hu C/D) proteins and/or neuronal isoform of nitric oxide synthase(n NOS),vasoactive intestinal peptide(VIP) and galanin(gal). RESUlTS In the control group in the myenteric ganglia(MG) of the corpus we have noted 22.28% ± 1.19% of n NOS positive neurons,while in diabetic group we have found 40.74% ± 2.22% of n NOS immunoreactive perikarya(increase by 82.85 %). In turn in the pylorus we have observed 15.91% ± 0.58% n NOS containing neurons in control animals and 35.38% ± 1.54% in the diabetes group(increase by 122.37%). In the MG of the antrum and submucosal ganglion(SG) in the corpus hyperglycemia did not cause statistically significant changes. With regard to VIP-positive cell bodies in the antrum MG in the control animals we have noted 18.38 ± 1.39% and 40.74% ± 1.77% in the experimental group(increase by 121.65%). While in the corpus we have observed 23.20% ± 0.23% in the control and 30.93% ± 0.86% in the diabetes group(increase by 33.31%). In turn in the pylorus VIP positive cells bodies constituted 23.64% ± 1.56% in the control group and 31.20% ± 1.10% in the experimental group(increase by 31.97%). In the submucosal ganglion in the corpus we have noted 43.61% ± 1.06% in the control animals and 37.00% ± 1.77% in the experimental group(decrease by 15.15%). Expression of gal-positive perikarya showed statistically significant changes only in the MG of the antrum and pylorus. In the antr

关键词： Immunohistochemistry Inhibitory neurons Streptozotocin Hyperglycemia Pig

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Effects of structures of molybdenum catalysts on selectivity in gas-phase propylene oxidation

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Chinese Journal of catalysis 2015年第11期36卷 1900-1909页

作者： Martin Sustek Blazej Horvath Ivo Vavra Miroslav gal Edmund Dobrocka Milan Hronec 斯洛伐克理工大学化学与食品技术学院 Radlinskeho 981237斯洛伐克布拉迪斯拉发斯洛伐克科学院电气工程研究院 Dubravskecesta 284104斯洛伐克布拉迪斯拉发 VSB-俄斯特拉发工业大学纳米技术中心 17.listopadu15捷克共和国俄斯特拉发70800

Molybdenum-based catalysts for the gas-phase oxidation of propylene with air were investigated. Various types of sil.ca-supported molybdenum oxide and molybdenum-bismuth mixed oxide cata- lysts were prepared from inorganic and organometallic molybdenum precursors using wet impregnation and physical vapor deposition methods. The epoxidation activities of the prepared cata- lysts showed direct correlations with their nanostructures, which were identified using transmission electron microscopy. The appearance of a partly or fully crystalline molybdenum oxide phase, which interacted poorly with the sil.ca support, decreased the selectivity for propylene oxide for- mation to below 10%; non-crystalline octahedrally coordinated molybdenum species anchored on the support gave propylene oxide formations greater than 55%, with 11% propylene conversion. Electrochemical characterization of molybdenum oxides with various morphologies showed the importance of structural defects. Direct promotion by bismuth of the epoxidation reactivities over molybdenum oxides is disputed.

关键词： Propylene oxide Epoxidation Molybdenum oxide Optical property Electrochemical property

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calcium-Magnesium ca/Mg Ratios and Their Agronomic Impl.cations for the Optimization of Phosphate Fertilization in Rainfed Rice Farming on Acidic Ferralsol in the Forest Zone of Ivory Coast

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Open Journal of Soil Science 2024年第1期14卷 81-96页

作者： Fernand G. Yao Brahima Kone Franck M. l. Bahan Kouadio Amani Jean l. Essehi Mamadou B. Ouattara Konan E. B. Dibi Brou Kouame François lompo Albert Yao-Kouame Central laboratory Soils Water and Plants (LCSEP) National Center for Agronomic Research (CNRA) Bouaké Ivory Coast Soil Water and Geomaterials Sciences Laboratory (LS2EG) Cocody-Abidjan Earth Sciences and Mining Resources Training and Research Unit (UFR STRM) Félix Houphou&#235t-Boigny University Abidjan Ivory Coast Department of Rice Program Man Research Station National Center for Agronomic Research (CNRA) Man Ivory Coast Department of Geography Unit of Training and Research (UFR) Communication Environment and Society University Alassane Ouattara Bouaké Ivory Coast Food Crops Research Station (SRCV) National Agricultural Research Center (CNRA) Bouaké Ivory Coast Institute of the Environment and Agricultural Research (INERA) Ouagadougou Burkina Faso

This study is a contribution to improving rice productivity on acidic plateau soils of the tropical rainforest zone. It is based on taking into account the cationic balances of the soil in order to optimize the phosphorus (P) nutrition of rice on these acidic soils, where this nutrient constitutes a limiting factor for agricultural production. Three (3) pot trials were conducted in Adiopodoumé in the forested south of Côte d’Ivoire. The interactive effects of calcium carbonate (0, 25, 50 and 75 kg ca ha−1) and magnesium sulfate (0, 25, 50 and 75 kg Mg ha−1) were evaluated on the response of NERIca 5 rice at doses 0, 25, 50 and 75 kg P ha−1 of natural phosphate from Togo, applied only once at the start of the experiment. Additional fertilizers of nitrogen (N) (100 kg N ha−1) and potassium (K) (50 kg KCl ha−1) were added to each of the tests in a split-plot device. The test results revealed a paddy production potential of approximately 3 to 5 t⋅ha−1 for NERIca 5 on an acidic soil, under the effect of the interaction of P, ca and Mg. The quadratic response of rice yield to the doses of these fertilizers would be more dependent on their balance, itself influenced by ca nutrition. For the sustainability and maintenance of rice production in agro-ecology studied, it was recommended doses of 38 kg ca ha−1, 34 kg Mg ha−1 in a ca/Mg ratio (1/1) with intakes of 41 kg P ha−1, overall in a ratio 1/1/1 (P/ca/Mg) more favorable to the availability of free iron considered a guiding element of mineral nutrition. Thus, these promising results should be confirmed in a real environment for better management of the fertilization of rice cultivated on acidic plateau soils in Côte d’Ivoire.

关键词： Soil Acidity ca/Mg Ratios Phosphate Fertilization Rice Growing Ivory Coast

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北祁连山高压变质带的变形和变质特征及其对俯冲带折返的意义

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岩石学报 2009年第9期25卷 2235-2246页

作者：曹毅宋述光 ca0 Peking Univ MOE Key Lab Orogen Belts & Crustal Evolut Dept Geol Beijing 100871 Peoples R China

北祁连造山带是早古生代大洋板块"冷"俯冲的典型地区,形成了一系列高压低温变质的岩石组合。基性榴辉岩是俯冲洋壳变质的产物,根据其结构构造特征可以划分为(1)粒状榴辉岩,峰期变质矿物组合为Grt+Omp+Phn+Rut±lws,硬柱石呈包裹体和假... 详细信息

北祁连造山带是早古生代大洋板块"冷"俯冲的典型地区,形成了一系列高压低温变质的岩石组合。基性榴辉岩是俯冲洋壳变质的产物,根据其结构构造特征可以划分为(1)粒状榴辉岩,峰期变质矿物组合为Grt+Omp+Phn+Rut±lws,硬柱石呈包裹体和假象分布于石榴石内,变质温压条件T=465～508℃,p=2.30～2.60GPa。(2)片状榴辉岩,岩石具片状构造,其共生矿物组合Omp+Czo/Ep+Phn+Gln构成透入性面理S_1和线理l_1,以及宏观和显微同斜褶皱F_1。其峰期变质温压条件为T=466～510℃,P=1.9～2.2GPa。(3)蓝片岩相退化变质榴辉岩,蓝片岩相变质矿物Gln+Ep+Phn±Ab强烈交代榴辉岩相矿物,并发生强烈D_2期变形作用,岩石形成明显的透入性面理S_2和线理l_2,以及同斜剪切褶皱F_2。蓝闪石和多硅白云母线理的统计揭示D_2期变形以斜向走滑剪切为主,与D_1期变形的榴辉岩的运动学特征大体相似。D_2同变质的温压条件为T=422～487℃,P=1.15～1.37GPa。高压变质带晚期的绿片岩相叠加和D_3期变形,形成透入性面理S_3和线理l_3,其运动特征为近于垂直构造线的逆冲剪切。结合榴辉岩变形特征,变质温压条件和同位素年代学资料,我们认为退变质的强弱与变形程度有密切关系。峰期变质后的榴辉岩经过早期绿帘石榴辉岩相到蓝片岩相斜向走滑剪切,和晚期绿片岩相逆冲,在泥盆纪早期快速折返的出露地表。

关键词：北祁连山高压变质带变形变质特征俯冲带折返 impl.cations 榴辉岩相峰期变质温压条件 mineral assemblage 蓝片岩相 North Qilian Mountains isotopic geochronology 走滑剪切线理绿片岩相矿物组合变质矿物 movement Early Paleozoic

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