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Optimization of Shanghai Marine Environmental Monitoring Sites in the Identification of Boundaries of Different Water Quality grades

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Journal of Ocean University of China 2018年第4期17卷 846-854页

作者： FAN Haimei GAO Bingbo WANG Jinfeng QIN Xiaoguang LIU Pengxia HU Maogui XU Peng East China Sea Environmental Monitoring Center State Oceanic AdministrationShanghai 201206China Beijing Research Center for Information Technology in Agricultur Beijing Academy of Agriculture and Forestry SciencesBeijing 100097China State Key Laboratory of Resources&Environmental Information System Institute of Geographic Sciences&Nature Resources ResearchChinese Academy of SciencesBeijing 1O0101China

Water quality is critical to ensure that marine resources and the environment are utilized in a sustainable manner. The objective of this study is therefore to investigate the optimum placement of marine environmental monitoring sites to monitor water quality in Shanghai, China. To improve the mapping or estimation accuracy of the areas with different water quality grades, the monitoring sites were fixed in transition bands between areas of different grades rather than in other positions. Following bidirectional optimization method, first, 18 candidate sites were selected by filtering out specific site categories. Second, three of these were, in turn, eliminated because of the rule defined by the changes in the areas of water quality grades and by the standard deviation of the interpolation errors of dissolved inorganic nitrogen(DIN) and phosphate(PO_4-P). Furthermore, indicator kriging was employed to depict the transition bands between different water quality grades whenever new sampling sites were added. The four optimization projects of the newly added sites reveal that, all optimized sites were distributed in the transition bands of different water grades, and at the same time in the areas where the historical sites were sparsely distributed. New sites were also found in the overlap region of different transition bands. Additional sites were especially required in these regions to discriminate the boundaries of different water quality grades. Using the bidirectional optimization method of the monitoring sites, the boundaries of different water quality grades could be determined with a higher precision. As a result, the interpolation errors of DIN and PO_4-P could theoretically decrease.

关键词： bidirectional optimization method boundaries of water quality grades Changjiang River Estuary and its adjacent areas transition bands indicator kriging

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Correlation Between Playing an Instrument and grades in Middle and High School Students in the U.S.

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Management Studies 2022年第1期10卷 44-52页

作者： April Wen Stanford Online High School Redwood CityUSA

The purpose of this study is to determine if there is a correlation between grades and playing an ***,it will be determined if the number of hours one spends practicing their instrument and how long one has played their instrument affects one’s grade in a *** data for this study were obtained through a Google Form and were targeted towards middle and high school students in the United *** of this study concluded that there is a correlation between playing an instrument and one’s grades in certain *** was also determined that the amount of time spent practicing or how long one has played an instrument also had an impact on one’s grades in certain subjects.

关键词： performance instrument grades music education

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Adaptive System for Assigning Reliable Students’ Letter grades—A Computer Code

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Intelligent Information Management 2010年第10期2卷 569-585页

作者： Saeid A. Alghamdi 不详

The availability of automated evaluation methodologies that may reliably be used for determining students’ scholastic performance through assigning letter grades are of utmost practical importance to educators, students, and do invariably have pivotal values to all stakeholders of the academic process. In particular, educators use letter grades as quantification metrics to monitor students’ intellectual progress within a framework of clearly specified learning objectives of a course. To students grades may be used as predictive measures and motivating drives for success in a study field. However due to numerous objective and subjective variables that may by be accounted for in a methodological process of assigning students’ grades, and since such a process is often tainted with personal philosophy and human psychology factors, it is essential that educators exercise extra care in maximizing positive account of all objective factors and minimizing negative ramifications of subjectively fuzzy factors. To this end, and in an attempt to make assigning students’ grades more reliable for assessing true-level of mastering specified learning outcomes, this paper will: i) provide a literature review on previous works on the most common methods that have traditionally been in use for assigning students’ grades, and a short account of the virtues and/or vices of such methods, and ii) present a user-friendly computer code that may be easily adapted for the purpose of assigning students’ grades. This would relieve educators from the overwhelming concerns associated with mechanistic aspects of determining educational metrics, and it would allow them to have more time and focus to obtain reliable assessments of true-level of students’ mastery of learning outcomes by accounting for all possible evaluation components.

关键词： Reliable Students’ grades Computer Code Assigning Reliable Letter grades

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Non Alcoholic Fatty Liver Disease: Assessment of Lipid Profile Estimation in Different grades of Fatty Liver on Ultrasound

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Open Journal of Preventive Medicine 2018年第3期8卷 70-83页

作者： Bhojo Mal Tanwani Anwar Ali Jamali Ghulam Mustafa Jamali Ameer Ali Jamali Muhammad Ali Sohail 1Department of Physiology Peoples University of Medical and Health Sciences for Women Nawabshah Pakistan Department of Medicine Peoples University of Medical and Health Sciences Nawabshah Pakistan Department of Pediatrics Medicine Peoples University of Medical and Health Sciences for Women Nawabshah Pakistan Department of Urology Peoples University of Medical and Health Sciences for Women Nawabshah Pakistan

Background: Non Alcoholic Fatty Liver Disease (NAFLD) is common hepatic disorder which is recognized as a great health problem causing different diseases worldwide. To determine non-alcoholic fatty liver and assess the relation of fasting total lipids with different grades of fatty liver (NAFLD) subjects diagnosed through ultrasound. By identifying the risk factors of Lipid Profile and NAFLD, the health care provider can properly manage it, even awareness specific for patients and community as general being launched to diminish the morbidity and mortality by this study. Methods: This cross-sectional research carried out at Medicine Department of PMCH, Shaheed Benazirabad. This study comprises 300 subjects of NAFLD. Patients who attended the medicine department with abdominal complains after examination consultant advised ultrasound. The ultrasound performed in Radiology department, patients with findings of fatty liver selected, and history taken from all the patients with special regard to alcoholism. Fasting lipid profile done in all patients included in present study. The blood samples collected from a vein and immediately sent to the laboratory. Results: This present study enlisted total 300 patients out of them 203 (67.7%) belonged to male gender and 97 (32.3%) were females. A ratio of 2.1:1 observed in male and female subjects. There were 176 (58.7%) patients in grade I, while 82 (27.3%) patients in grade II and 42 (14%) patients in grade III. The cholesterol value was abnormal in 186 (62%), while normal in remaining 114 (38%) patients. Triglycerides were abnormal in 152 (50.7%) while in 148 (49.3%) patients were normal. HDL in 155 (51.7%) patients was abnormal while 145 (48.3%) patients had normal values. Low density lipoprotein value in 117 (39%) patient was abnormal and 183 (61%) patient normal. Very low-density lipoprotein in 117 (39%) patients was abnormal and 183 (61%) patient normal. The mean age and SD of patients in present study was 46.83 ± 8.82, wit

关键词： Lipid Profile NAFLD (Nonalcoholic Fatty Liver Disease) Ultrasound grades of Fatty Liver

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Research on Relationship Between Humic Substance grades and Their Dispersion Ability as CWM Additives

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International Journal of Mining Science and Technology 1998年第2期19卷 136-139页

作者：潘相卿曾凡王琳

Four humic coal samples are extracted to obtain humic substances (HS), and then subdivided(or purified) to obtain sixteen grades of HS, four from each coal. The effectiveness of these sixteen HS samples as additives for producing coal water mixture (CWM) is tested (w (additive) = 1 % and the the coal used is from the Baiyi coal preparation plant). A linear regression analysis of viscosity versus the additive’s components shows: (1)humic acids(HA) and humin (HM) are much better than fulvic acids (HF) with HA being tbe best, and (2) tke effects of grades of HS on coal dispersion as measured by viscosity are quite different. CWM additive effectiveness correlates positively with the increase of E4/E6,ash content, acid groups, and carboxyl groups, and negatively with the increase of molecular weight, HS content and phenolic alcohol content.

关键词： humic substances grades CWM additives dispersion ability

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Spatial and Temporal Distribution of Different grades of Short-time Precipitation in Xining City

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Meteorological and Environmental Research 2023年第1期14卷 21-23页

作者： Liang XU Yongling SU Qinghai Meteorological Observatory Xining 810001China

Based on the hourly precipitation data from 4 observation stations of Xining City from June to September during 2005-2011,the temporal and spatial distribution characteristics of short-time precipitation were *** results show that the precipitation distribution in Xining region exhibited the less-more-less trend from southwest to northeast,while the torrential rain gradually increased from the northwest and southwest to the *** hourly general precipitation in Xining region had obviously seasonal characteristics,and its annual distribution showed wavy changes,but the annual variation of short-time heavy precipitation and rainstorm was very ***,short-time heavy precipitation was concentrated from 18:00 to 24:00,followed by 03:00-07:00 on the following *** occurrence time of short-time rainstorm accorded with short-time heavy *** offers a useful reference for the accurate and timely short-term forecast.

关键词： Different grades Short-time precipitation Temporal-spatial distribution

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HOW TO IMPROVE POOR ENGLISH LEARNERS' grades

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青少年日记(教育教学研究) 2015年第4期 92-92页

作者：郭海平河北省易县中学

In senior English teaching,it is a critical task for every English teacher to transform the students who are poor at English into good ones and prevent them from falling ***,the poor students are also aggressive,eager for information,respect and good scores,which is the motive in their *** they can taste and enjoy success like good students,they can

关键词： grades HOW TO IMPROVE POOR ENGLISH LEARNERS

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Seismic performance assessment of high CFRDs based on fragility analysis

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Science China(Technological Sciences) 2019年第4期62卷 635-648页

作者： PANG Rui XU Bin ZOU DeGao KONG XianJing School of Hydraulic Engineering Faculty of Infrastructure Engineering Dalian University of Technology State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology

Due to a large number of high concrete face rockfill dams(CFRDs) being constructed, the seismic safety is crucially important and seismic performance assessment must be performed for such dams. Fragility analysis is a method of great vitality for seismic performance assessment; it can intuitively forecast the structural effects of different ground motion intensities and provide an effective path for structure safety assessment. However, this method is rarely applied in the field of high earth dam risk *** paper introduces fragility analysis into the field of high CFRD safety assessment and establishes seismic performance assessment methods. PGA, Sa(T1, 5%), PGV and PGD are exploited as the earthquake intensity measure(IMs). Relative settlement ratio of dam crest, cumulative sliding displacement of dam slope stability and a new face-slab destroying index(based on DCR and COD) are regarded as the dam damage measures(DMs). The dividing standards of failure grades of high CFRDs are suggested based on each DM. Fragility function is estimated according to incremental dynamic analysis(IDA) and multiple stripes analysis(MSA) methods respectively from a large number of finite element calculations of a certain CFRD, and seismic fragility curves are determined for each DM. Finally, this study analyzes the failure probabilities of the dam under different earthquake intensities and can provide references and bases for the seismic performance design and safety risk assessment of high CFRDs.

关键词： high CFRDs seismic performance fragility analysis failure grades IDA MSA

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Assessing geological uncertainty of a cement raw material deposit,southern Vietnam,based on hierarchical simulation

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International Journal of Mining Science and Technology 2020年第6期30卷 819-837页

作者： Trong Vu Carsten Drebenstedt Tran Bao TU Bergakademie Freiberg 09599 FreibergGermany Hanoi University of Mining and Geology Hanoi 10000Viet Nam

Resource modeling plays a crucial role in raw material quality management for cement *** has shown that geological uncertainty in resource modeling is inevitable and results in risk to future extraction planning and operations of the cement *** study aims to assess the geological uncertainty and associated risk in modeling a cement raw material deposit in southern *** this deposit,soil,clay,laterite,and limestone are the four primary rock types,controlling the occurrence and spatial distribution of chemical *** this study,hierarchical simulation method was used to evaluate the *** types were first simulated,and the chemical grades conditioning to the rock types were then *** results demonstrated the capability of the hierarchical simulation approach to incorporate the uncertainty of rock types in resource modeling and to allow evaluating the risks in providing the desired raw material for the cement plant in the form of grade-tonnage curves.

关键词： Cement raw material Geological uncertainty Rock types grades Hierarchical simulation

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不同年级大学生的社会支持、应对方式比较及其相关研究

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心理学 2007年第9期 506-508页

作者：唐燕郑子健史文

目的探讨不同年级大学生社会支持与应对方式情况及两者的关系。方法用社会支持评定量表（SSRS）和应对方式问卷对大学四个年级学生共400例作调查分析。结果一、四年级学生相对于其他年级学生获得更多的客观支持，一年级学生的支... 详细信息

目的探讨不同年级大学生社会支持与应对方式情况及两者的关系。方法用社会支持评定量表（SSRS）和应对方式问卷对大学四个年级学生共400例作调查分析。结果一、四年级学生相对于其他年级学生获得更多的客观支持，一年级学生的支持利用度最高；二、三年级学生采用自责、退避、合理化应对较其他年级多，一年级学生采用幻想应对较多；各年级学生解决问题和求助的应对方式与社会支持均呈显著正相关，其中支持利用度与求助的相关程度最高；除大一学生的幻想应对与社会支持呈不显著的正相关外，各年级消极应对方式（自责、合理化、退避、幻想）均与社会支持呈负相关。结论社会支持和应对方式在不同年级大学生中各有特点，且各年级中两者的相互作用是不同的，说明应激相关因素的作用是多途径的。

关键词：年级社会支持应对方式社会支持评定量表应付方式问卷 grades Social support Coping style SSRS Coping style questionnaire

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