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北京奥林匹克公园夏季绿地小气候及人体环境舒适度效应分析

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生态科学 2018年第5期37卷 77-86页

作者：张彪 majid AMANI-BENI 史芸婷谢高地中国科学院地理科学与资源研究所北京100101 中国科学院大学北京100049

评价城市绿地的小气候调节功能对于应对城市热岛效应与优化公园绿地设计有重要参考意义。该研究于2016年7—9月在北京奥林匹克公园内开展了灌溉草地与荒草地、孤植树与群植树、水体与空旷地3种绿化配置模式下共12个样地的微气象要素观测... 详细信息

评价城市绿地的小气候调节功能对于应对城市热岛效应与优化公园绿地设计有重要参考意义。该研究于2016年7—9月在北京奥林匹克公园内开展了灌溉草地与荒草地、孤植树与群植树、水体与空旷地3种绿化配置模式下共12个样地的微气象要素观测,分析了公园草地、公园林地和公园水体的小气候状况,并评估了公园绿地夏季降温增湿和人体环境舒适度的特征。结果表明:(1)与空旷地相比,公园草地夏季平均可降温1.75%以及增湿5.06%,且定期灌溉草地的小气候调节功能明显优于荒草地;(2)公园林地平均可降温3.25%和增加湿度3.91%,孤植树的小气候效应明显低于群植树;(3)公园水体夏季平均降温1.56%与增湿8.10%,而且大面积水体的小气候调节效果更好;(4)综上,北京奥林匹克公园夏季绿地平均可降温2.41%、增湿5.25%以及改善环境舒适度1.75%,公园林地的小气候调节功能明显优于公园草地和水体。因此,在城市公园绿地规划设计中,建议优先布局群植树木与大面积水体,并加强公园草地的灌溉养护,以优化提升其公园小气候调节功能。

关键词：城市绿地小气候夏季人体环境舒适度北京奥林匹克公园

Improved the Prediction of Multiple Linear Regression Model Performance Using the Hybrid Approach: A Case Study of Chlorophyll-a at the Offshore Kuala Terengganu, Terengganu

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Open Journal of Statistics 2016年第5期6卷 789-804页

作者： Muhamad Safiih Lola Mohd Noor Afiq Ramlee G. Sugan Gunalan Nurul Hila Zainuddin Razak Zakariya MdSuffian Idris Idham khalil School of Informatics and Applied Mathematics University Malaysia Terengganu Kuala Terengganu Malaysia School of Science Marin University Malaysia Terengganu Kuala Terengganu Malaysia

Efficiency and precision in prediction of Chlorophyll-a using this model is still a pandemic among researchers, due to the natural conditions in ocean water systems itself, which involved chemical, biological and physical processes and interaction among them may affect the model performance drastically. Thus, to overcome this problem as well as to improve the strength of MLR, we proposed a hybrid approach, i.e., an Artificial Neural Network to the MLR coins as Artificial Neural Network-Multiple Linear Regression (ANN-MLR). To investigate the performance of the proposed model, we compared Multiple Linear Regression (MLR), Artificial Neural Network (ANN) and proposed hybrid Artificial Neural Network and Multiple Linear Regression (ANN-MLR) in the prediction of chlorophyll-a (chl-a) concentration by statistical measurement which are MSE and MAE. Achieving our objectives of study, we used 4 parameters, i.e. temperature (°C), pH, salinity (ppt), DO (ppm) at the Offshore Kuala Terengganu, Terengganu, Malaysia. The results showed that our proposed model can improve the performance of the model as compared to ANN and MLR due to small errors generated, error reduced, and increased the correlation coefficient for all parameters in both MSE and MAE, respectively. Thus, this result indicated that our proposed model is efficient, precise and almost perfect correlation as compared to ANN and MLR.

关键词： Multi Linear Regression Artificial Neural Network ANN-MLR Chlorophyll-a Correlation

Microwave Application and Anhydrous Cu(OAc)₂ Mediated O-Arylation of aliphatic Amino alcohols

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International Journal of Organic Chemistry 2016年第2期6卷 100-106页

作者： Mohammad al-Masum Linda Quinones Laurance T. Cain Department of Chemistry Tennessee State University Nashville TN USA

Anhydrous Cu(OAc)2 mediated efficient protocol has been developed in the area of C-O coupling from potassium aryltrifluoroborates and aliphatic amino alcohols such as β-hydroxy, γ-hydroxy, and δ-hydroxy amines. The scope of this transformation focuses on direct O-arylation and O-styrylation. The reaction vial loaded with reactants under argon atmosphere is microwaved at 140°C for 30 min to furnish the corresponding cross-coupling product, amino ethers, in good yields.

关键词： Hydroxylamine Amino Ether O-Arylation O-Styrylation Microwave

Geometric Correction Analysis of Highly Distortion of Near Equatorial Satellite Images Using Remote Sensing and Digital Image Processing Techniques

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Engineering（科研） 2022年第1期14卷 1-8页

作者： Hayder Dibs Shattri Mansor Noordin Ahmad Nadhir al-Ansari Water Resources Management Engineering Department Faculty of Water Resources Engineering Al-Qasim Green University Babylon Iraq Faculty of Engineering Geospatial Information Science Research Centre Department of Civil Engineering University Putra Malaysia Selangor Malaysia National Space Agency Malaysia (ANGKASA) Kementerian Sains Teknologi dan Inovasi Pusat Angkasa Negara Selangor Malaysia Department of Civil Environmental and Natural Resources Engineering Lulea University of Technology Lulea Sweden

The Near-equatorial orbit (NEqO) satellite represents a new generation of optical satellite images characterized by nonlinear distortion when captured. Conventional modeling techniques are insufficient to overcome the geometric distortion in these satellite images. This study proposes a new methodology for overcoming the geometric distortion of the NEqO images. The data used are obtained from RazakSAT and SPOT-5 satellite images in Malaysia. The method starts with applying the RI-SIFT algorithm to extract control points (CPs) automatically. These CPs are used to solve for the transformation parameters of the geometric correction model by applying spline transformations. The result is verified through statistical comparison: 1) geometric correction on the RazakSAT image is performed with Spot satellite image with using first-order polynomial trans-formation. 2) Then calculate the root mean square error (RMSE). 3) Compare the calculated RMSE with that obtained from the first step with that of the proposed method. The RMSE value of the geometric corrections using the proposed method was 7.08 × 10−9 m. The proposed method provides promising results.

关键词： Near Equatorial Satellite Geometric Correction Automatic Extraction of CPs RI-SIFT Sum of Absolute Difference

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印尼-中国高速铁路财务绩效分析

印尼-中国高速铁路财务绩效分析

作者： Sarah Ulfah al Amany 江西财经大学

学位级别：硕士

本研究确定了一家公司的财务状况,公司需要对这些财务报表进行分析。通过对公司财务报表的分析,可以看出公司是在进步还是在受挫。本研究采用流动性比率、偿付能力比率和盈利能力比率三个比率,来确定高铁印尼-中国公司过去五年的财务状... 详细信息

本研究确定了一家公司的财务状况,公司需要对这些财务报表进行分析。通过对公司财务报表的分析,可以看出公司是在进步还是在受挫。本研究采用流动性比率、偿付能力比率和盈利能力比率三个比率,来确定高铁印尼-中国公司过去五年的财务状况。本项目的最终目标是财务报表。通过对公司现有数据进行注释,经验数据复制了公司资产负债表和损益表上的记录和信件。我们使用了高铁印尼中国2015年至2019年的二级数据、资产负债表和损益表。我们使用的数据分析是基于流动比率、速动比率、现金比率、负债与资产比率、负债与权益比率、长期负债与权益比率、净利润率、总资产回报率和权益回报率来评估公司财务健康状况的定量分析。本研究的结果基于对2015年至2019年财务比率的分析。高铁印尼中国公司财务状况相对健康。据说这家公司是一家相当健康的公司,因为这些公司有很好的比率价值。从比率上看,流动比率、速动比率、现金比率、负债资产比率、负债权益比率、长期负债权益比率处于良好的位置。因此,净利润率处于一个相当好的位置。同时,总资产收益率,和净资产收益率,处于一个不健康的位置,因为所拥有比率的价值低于余额的标准权重。

关键词：财务表现印尼高铁流动性偿付能力和盈利能力

Smart Python Agents for Microgrids

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Smart Grid and Renewable Energy 2023年第10期14卷 183-196页

作者： Salem al-Agtash Xueyan Xian Kristina Petroshchuk Heba Syeddah Department of Computer Science and Engineering Santa Clara University Santa Clara CA USA Department of Computer Engineering German Jordanian University Amman Jordan Department of Computer Science and Information Technology Mission College Santa Clara CA USA

Microgrids are revolutionary power systems that interconnect a mix of renewable power generation, load, storage systems, and inverters in a small-scale grid network. Operating microgrids while maintaining a consistent grid voltage and frequency during the islanding and disruption of renewables has been a challenging research problem. In this paper, a preliminary microgrid agent implementation is presented using SPADE (Smart Python Agent Development Environment) as a powerful development framework that has been used extensively in many application domains. Agents autonomously managed and operated microgrid individual components. A multiagent microgrid system was modeled to seamlessly operate and optimize energy balance by coordinating the actions of agents. Agents were built to forecast energy demand and solar power and coordinate to balance generation with load while maintaining optimal power flow and adequate network voltage and frequency.

关键词： Microgrids Agents SPADE Renewable Power

Urticarial Bullous Pemphigoid: A New Case Report

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Journal of Cosmetics, Dermatological Sciences and Applications 2022年第3期12卷 145-152页

作者： Waqas S. Abdulwahhab Fatima M. al Qaydi Consultant Dermatology & Venereology Department of Dermatology and Venereology Al Qassimi Hospital Sharjah United Arab Emirates College of Medicine-Sharjah University Sharjah United Arab Emirates

Background: Bullous pemphigoid (BP) is the most common autoimmune bullous disease and it primarily affects the elderly population. It typically presents with tense bullae and severe pruritus. Non-bullous pemphigoid is a subtype of BP characterized by lacking the typical bullae formation with different presentations including erythematous, eczematous, urticarial, polycyclic, targetoid, nodular, lichenoid, vesicular and erythrodermic. Aim: to document a new case presentation of urticarial BP who was treated for several years as chronic urticarial and chronic eczema. Case Report: A 56-year-old male patient presented with a history of recurrent severely pruritic urticarial wheals for 4 years duration involving the lower abdomen, lower back, upper and lower extremities associated with excoriations, keratosis, and post-inflammatory hyperpigmentations on resolved sites, diagnosed as urticarial BP on histopathology & direct immunofluorescence study (DIF) and was improved on systemic doxycycline therapy. Conclusion: BP can be presented with atypical manifestation. Urticarial BP is a rare variant of non-bullous pemphigoid that should be taken into consideration in the differential diagnosis of an atypical urticarial wheal not responding to conventional therapy.

关键词： Bullous Pemphigoid Non-Bullous Pemphigoid Urticarial Bullous Pemphigoid Direct Immunofluorescence Doxycycline

Invasive versus non-invasive ventilation in patients with COVID-19 pneumonia:A retrospective study

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Journal of Acute Disease 2023年第2期12卷 61-66页

作者： Abhijit Nair Jacob Paul Ajay Yadav Khalid al Sawafi Department of Anaesthesiology Ibra HospitalMinistry of Health-OmanSultanate of Oman Hospital Administration Ibra HospitalMinistry of Health-OmanSultanate of Oman

Objective:To compare the survival and length of stay of invasive ventilation(IV)with those of non-invasive ventilation(NIV)in patients with COVID-19 acute respiratory distress syndrome in a single hospital from May 2020 to March ***:After obtaining approval from the Hospital Director,the data of COVID-19 patients including demographics,type of respiratory support(non-invasive ventilation or invasive ventilation),duration of ventilation,length of stay,discharge,and death were collected and ***:Out of the 152 patients identified,134 patients were *** median intubation days were 10.0(Q1:3.5,Q3:13.5)in the IV group and 0.0(Q1:0.0,Q3:0.0)days in the NIV-only *** of the 101 patients who received NIV,43 patients were subsequently intubated due to failure of *** the 63 patients(47.01%)who died,22(66.66%)were from the IV group and 40(92.02%)were from the NIV-followed-by-intubation group,and 1(1.72%)were from the NIV-only *** analysis showed that the presence of a respiratory comorbidity(OR=16.56,95%CI=1.56-175.48,P=0.02)was an independent predictor of ***:Respiratory co-morbidity is a significant adverse predictor of survival *** decision on the type of respiratory support should be made on a patient-to-patient basis.

关键词： Acute respiratory distress syndrome COVID-19 Intensive care unit Invasive ventilation Morbidity Mortality Non-invasive ventilation

Knowledge of Nurses toward Prevention for Catheter-Associated Urinary Tract Infection in Public Hospitals at Amran City, Yemen

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Open Journal of Nursing 2021年第11期11卷 933-946页

作者： Abdulnasser A. Haza’a Abdulfatah al-Jaradi Marzoq ali Odhah Critical Care and Emergency Nursing Faculty of Medical Sciences Al-Razi University Sana’a Yemen

Background of the study: Catheter-associated urinary tract infection (CAUTI) is the most prevalent healthcare-associated infection worldwide, according to reports. Nurses are also accountable to acquire appropriate knowledge and practices of catheter care that will prevent UTI. Nurses’ knowledge is seen to be one of the most important factors in their practice. Aim of the study: To assess the nurse’s knowledge toward the prevention of catheter-associated urinary tract infection in public hospitals at Amran City. Methods: A descriptive cross-sectional study was conducted among nurses at public hospitals in Amran City, Yemen. A convenience sampling technique was of the study consisted of 93 nurses from different public hospitals that were participated in this study. Self-administered questionnaire was used to collect data from March 2021 to April 2021. Results: The distribution of nurses’ ware female 65.6%, belonged to age group between (25 to alification 88.2%, 81.7% between 1 - 5 years’ experience as nurses. Knowledge regarding prevention of catheter-associated urinary tract infection was fair 72%, while 18.3% had a good. There is a significant statistical difference between knowledge level regarding prevention of CAUTI, and sex (P-value = 0.042). Conclusion: Most of nurses had fair knowledge level regarding prevention of catheter-associated urinary tract infection. Recommendations: We recommended increasing the knowledge of nursing staff through the courses training, workshop, and curriculums.

关键词： Knowledge Nurses Prevention Catheter Urinary Tract Infection