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Multi-Step Clustering of Smart Meters Time Series:Application to Demand flexibility Characterization of SME Customers

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 869-907页

作者： Santiago bañales Raquel Dormido natividad Duro Department of Computer Sciences and Automatic Control Universidad Nacional de Educación a Distancia(UNED)Madrid28040Spain Iberdrola Innovation Middle East Doha210177Qatar

Customer segmentation according to load-shape profiles using smart meter data is an increasingly important application to vital the planning and operation of energy systems and to enable citizens’participation in the energy *** study proposes an innovative multi-step clustering procedure to segment customers based on load-shape patterns at the daily and intra-daily time *** meter data is split between daily and hourly normalized time series to assess monthly,weekly,daily,and hourly seasonality patterns *** dimensionality reduction implicit in the splitting allows a direct approach to clustering raw daily energy time series *** intraday clustering procedure sequentially identifies representative hourly day-unit profiles for each customer and the entire *** the first time,a step function approach is applied to reduce time series *** attributes embedded in surveys are employed to build external clustering validation metrics using Cramer’s V correlation factors and to identify statistically significant determinants of load-shape in energy *** addition,a time series features engineering approach is used to extract 16 relevant demand flexibility indicators that characterize customers and corresponding clusters along four different axes:available Energy(E),Temporal patterns(T),Consistency(C),and Variability(V).The methodology is implemented on a real-world electricity consumption dataset of 325 Small and medium-sized Enterprise(SME)customers,identifying 4 daily and 6 hourly easy-to-interpret,well-defined *** application of the methodology includes selecting key parameters via grid search and a thorough comparison of clustering distances and methods to ensure the robustness of the *** research can test the scalability of the methodology to larger datasets from various customer segments(households and large commercial)and locations with different weather and socioeconomic conditio

关键词： Electric load clustering load profiling smart meters machine learning data mining demand flexibility demand response

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A short review of malabsorption and anemia

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World Journal of Gastroenterology 2009年第37期15卷 4644-4652页

作者： fernando fernández-baares Helena Monzón Montserrat forné Department of Gastroenterology Hospital Universitari Mutua Terrassa University of Barcelona Plaza Dr Robert 5 08221 Terrassa Barcelona Spain

Anemia is a frequent finding in most diseases which cause malabsorption. The most frequent etiology is the combination of iron and vitamin B12 deficiency. Celiac disease is frequently diagnosed in patients referred for evaluation of iron deficiency anemia (IDA), being reported in 1.8%-14.6% of patients. Therefore, duodenal biopsies should be taken during endoscopy if no obvious cause of iron defi ciency (ID) can be found. Cobalamin defi ciency occurs frequently among elderly patients, but it is often unrecognized because the clinical manifestations are subtle; it is caused primarily by food-cobalamin malabsorption and pernicious anemia. The classic treatment of cobalamin deficiency has been parenteral administration of the vitamin. Recent data suggest that alternative routes of cobalamin administration (oral and nasal) may be useful in some cases. Anemia is a frequent complication of gastrectomy, and has been often described after bariatric surgery. It has been shown that banding procedures which maintain digestive continuity with the antrum and duodenum are associated with low rates of ID. Helicobacter pylori (H pylori) infection may be considered as a risk factor for IDA, mainly in groups with high demands for iron, such as some children and adolescents. further controlled trials are needed before making solid recommendations about H pylori eradication in these cases.

关键词： Anemia Celiac disease Helicobacter pylori Cobalamin deficiency Gastrectomy

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Role of nOGs in Protecting Children in Conflict With Law: Case of BnCE-Mali

Role of NOGs in Protecting Children in Conflict With Law: Ca...

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作者： Samaké Diénéba 华中师范大学

学位级别：硕士

马里是首批批准儿童权利国际公约的国家之一,同时其国内法律也都遵循国际协定的要求。尽管有这样的国际和国内机制作为保障,但目前仍没有其它措施来替代对未成年人的监押。这些儿童中的大部分来自贫困和破碎的家庭,面临着诸如学校教育... 详细信息

马里是首批批准儿童权利国际公约的国家之一,同时其国内法律也都遵循国际协定的要求。尽管有这样的国际和国内机制作为保障,但目前仍没有其它措施来替代对未成年人的监押。这些儿童中的大部分来自贫困和破碎的家庭,面临着诸如学校教育失败、家庭解体(走向街头)、逃学等问题,而这又会让一些人犯下诸如盗窃、强奸、打架斗殴、非法持有武器甚至暗杀等犯罪活动。一旦入狱,他们的权利往往被漠视,在青少年犯罪这个领域也缺乏行动者。绝大部分情况下,其成为无法充分享有适当权利的受害者。非政府组织,特别是BnCE-Mali(全国天主教儿童局)致力于所有儿童的全面发展,尤其是那些违反法律的儿童。BnCE-Mali通过宣传、提高人们的认识、培训和自身能力建设来积极维护被剥夺自由儿童的尊严。在本文中,我们要确定影响未成年人犯罪现象的有关因素,并提出BnCE-Mali 的发展策略及改进建议。为了这一目的,我们使用了两种主要的研究方法:(1)基本的资料来自于在马里的非政府组织的代办处和其他员工的问卷调查(比如地球社、博爱、恩达马里和拯救儿童等组织)和一份女子监狱和男子监狱的监管指南,(2)通过文章、网站、报告等途径获取其他资料。从我们的研究中可以推断出,尽管非政府组织特别是BnCE-Mali在促进儿童福祉方面(致敏、训练、宣传、食物援助、法律援助等)扮演关键角色并且影响国家来保护违反法律的儿童,但犯罪、学校教育失败、离婚、薄弱的基础教育、贫穷的家庭环境、不利的社会环境是这些孩子违反法律的原因。盗窃仍是男童和女童被监押的最主要原因。联合国儿童基金会(UnICEf)的一项研究表明,虽然法律禁止把儿童与成年人关押在同一个地方,但在马里的一些地区这种行为仍大行其道。作为回应,国家、非政府组织和家庭之间有效而即时的援助将有可能应对这个问题。这些援助包括:增加康复中心的数量,让孩子在学校呆到一定的年龄,提高父母对教育的决心,以及让非政府组织和被监押孩子的家庭携手合作,并加强对出狱后情况的监督。

关键词：违反法律的儿童非政府组织马里全国天主教儿童局保护角色

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Hepatocellular carcinoma risk after viral response in hepatitis C virus-advanced fibrosis: Who to screen and for how long?

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World Journal of Gastroenterology 2021年第40期27卷 6737-6749页

作者： Adriana Ahumada Laura Rayón Clara Usón Rafael bañares Sonia Alonso Lopez Liver Unit Hospital General Universitario Gregorio MarañónMadrid 28007Spain Liver Unit Instituto de Investigación Sanitaria Gregorio Marañón(IiSGM)Madrid 28007Spain medicine Universidad Complutense de MadridMadrid 28006Spain Centro de Investigación Biomédica En Red de Enfermedades Hepáticas y Digestivas(CIBERehd) Instituto de Salud Carlos IIIMadrid 28029Spain

Hepatitis C virus(HCV)chronic infection is associated with fibrosis progression,end-stage liver complications and *** surprisingly,HCV infection is a leading cause of liver-related morbidity and mortality *** sustained virological response(SVR),the risk of developing hepatocellular carcinoma is not completely eliminated in patients with established cirrhosis or with advanced ***,lifelong surveillance is currently *** strategy is likely not universally cost-effective and harmless,considering that not all patients with advanced fibrosis have the same risk of developing *** related to the severity of liver disease and its potential to improve after SVR,the molecular and epigenetic changes that occur during infection and other associated comorbidities might account for different risk levels and are likely essential for identifying patients who would benefit from screening programs after *** to develop predictive models and risk calculators,biomarkers and genetic panels and even deep learning models to estimate the individual risk of HCC have been made in the direct-acting antiviral agents era,when thousands of patients with advanced fibrosis and cirrhosis have reached *** tools could help to identify patients with very low HCC risk in whom surveillance might not be *** this review,factors affecting the probability of HCC development after SVR,the benefits and risks of surveillance,suggested strategies to estimate individualized HCC risk and the current evidence to recommend lifelong surveillance are discussed.

关键词： Hepatitis C virus Hepatocellular carcinoma Liver fibrosis Surveillance Sustained virologic response Epigenetic changes Predictive models Cost-effectiveness

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Characterization of Arithmetic functions that Preserve the Sum-of-squares Operation

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Acta Mathematica Sinica,English Series 2014年第4期30卷 689-695页

作者： Bojan baI Department of Mathematics and Informatics University of Novi Sad

We characterize all functions f ： n → C such that f（m^2 ＋ n^2） = f（m）^2 ＋ f（n）^2 for all m, n ∈ n. It turns out that all such functions can be grouped into three families, namely f ≡ 0, f（n） = ±n （subject to some restrictions on when the choice of the sign is possible） and f（n） =±l/2（again subject to some restrictions on when the choice of the sign is possible）.

关键词： Arithmetic function functional equation sum of squares

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Empirical Analysis of China's Trade and Investment Impact on Africa's Economic Growth:The Importance of Good Governance

Empirical Analysis of China's Trade and Investment Impact on...

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作者： n'guessan Yao ba Kandiosky Romaric 东北财经大学

学位级别：硕士

It is crystal clear that developing the business environment is a key aspect for attracting both national and international investors to a country,which would ultimately lead to an economic *** a matter of fact,no investor will take the risk to move to a country that is politically unstable,bureaucratic,and highly corrupted economies with inefficient and nontransparent government *** a government that is socially accountable in providing services and sensitive to the needs of its citizens will ultimately create a democratic climate leading to inclusive growth and human *** whole word was surprised by the way China shifted gradually within thirty years in terms of *** from an under-developed and poor country,China is today one of the largest exporters of manufactured goods and consequently one of the most powerful countries in the *** at the world stage has not only brought visibility but also drawn the attention and interest of many other countries keen to know and learn how it is possible to make such a *** these countries many African countries still behind from an economic perspective have raised interest and knowing their enormous potentiality China has also tied solid *** can find the origins of trade and investment between China and Africa back in the 1950s,but China being the largest trade partner of Africa dates from *** year *** can see an increase in the total merchandise trade of China and Africa from $9 billion in 2000 to $254.3 billion in ***,from a foreign direct investment(fDI)perspective,there is also a remarkable increase regarding Chinese outward fDI flows to Africa from merely the $74.8 million it was in 2003 to a big jump of $4.2 billion in 2020,and this is part of what made China the largest developing country in terms of investment in *** known as the cradle of humankind,Africa is the place where humankind originated but has for long year

关键词： Investment Trade Africa China fDI good governance

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Water-stable ZIf-300/Ultrason? mixed-matrix membranes for selective CO_2 capture from humid post combustion flue gas

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Chinese Journal of Chemical Engineering 2018年第5期26卷 1012-1021页

作者： Muhammad Sarfraz M. ba-Shammakh Department of Polymer and Process Engineering University of Engineering and Technology Lahore 54890 Pakistan Department of Chemical Engineering King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia

Water stable mixed-matrix membranes(MMMs) were developed to help control the global warming by capturing and sequestrating carbon dioxide(CO_2) from post-combustion flue gas originated from burning of fossil *** of different compositions were prepared by doping glassy polymer Ultrason? S 6010(US) with nanocrystals of zeolitic imidazolate frameworks(ZIf-300) in varying degrees. Solution-casting technique was used to fabricate various MMMs to optimize their CO_2 capturing performance from both dry and wet gases. The prepared composite membranes indicated enhanced filler-polymer interfacial adhesion, consistent distribution of nanofiller, and thermally established matrix configuration. CO_2 permeability of the membranes was enhanced as demonstrated by gas sorption and permeation experiments performed under both dry and wet conditions. As compared to neat Ultrason? membrane, CO_2 permeability of the composite membrane doped with 40 wt% ZIf-300 nanocrystals was increased by four times without disturbing CO_2/n_2 ideal selectivity. In contrast to majority of previously reported membranes, key features of the fabricated MMMs include their structural stability under humid conditions coupled with better and unaffected gas separation performance.

关键词： Hydrophobic MMMs ZIf-300 Gas permeation CO2 capture Permselectivity

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Multiplicity and Uniqueness of Positive Solutions for nonhomogeneous Semilinear Elliptic Equation with Critical Exponent

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Acta Mathematicae Applicatae Sinica 2016年第1期32卷 81-94页

作者： na ba Yan-yan WAnG Lie ZHEnG School of Science Hubei University of Technology Department of Mathematics Zhoukou Normal University

In this paper,we consider the following problem {-Δu（x）＋u（x）=λ（u^p（x）＋h（x））,x∈R^n,u（x）∈h^1（R^n）,u（x）〉0,x∈R^n,（＊）where λ 〉 0 is a parameter,p =（n＋2）/（n—2）.We will prove that there exists a positive constant 0 〈 A＊〈＋00such that（＊） has a minimal positive solution for λ∈（0,λ＊）,no solution for λ 〉 λ＊,a unique solution for λ = λ＊.furthermore,（＊） possesses at least two positive solutions when λ∈（0,λ＊） and 3 ≤ n ≤ *** n ≥ 6,under some monotonicity conditions of h we show that there exists a constant 0 〈λ＊＊〈 λ＊ such that problem（＊）possesses a unique solution for λ∈（0,λ＊＊）.

关键词： nonhomogeneous semilinear elliptic problems multiplicity uniqueness

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Cable-Driven Parallel Robot Workspace Identification and Optimal Design based on the Upper Limb functional Rehabilitation

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Journal of Bionic Engineering 2022年第2期19卷 390-402页

作者： ferdaws Ennaiem Abdelbadia Chaker Juan Sandoval Sami Bennour Abdelfattah Mlika Lotfi Romdhane Said Zeghloul med Amine Laribi Department of GMSC Pprime Institute CNRSENSMAUniversity of PoitiersUPR 3346PoitiersFrance Mechanical Laboratory of Sousse(LMS) National Engineering School of SousseUniversity of Sousse4000 SousseTunisia American University of Sharjah PO Box 26666SharjahUnited Arab Emirates

An assessment of the human motion repeatability for three selected Activities of Daily Living(ADL)is performed in this *** exercises were prescribed by an occupational therapist for the upper limb *** movement patterns of five participants,recorded using a Qualisys motion capture system,are compared based on the Analysis of Variance(AnOVA)*** survey is motivated by the need to find the appropriate task workspace of a 6-degrees of freedom cable-driven parallel robot for upper limb rehabilitation,which is able to reproduce the three selected *** comparison is performed to justify,whether or not,there is enough similarity between the participants’gestures,and so a single reference trajectory can be adopted as the robot-prescribed *** the results of the comparative study,an optimization process of the sought robot design is carried out,where the structure size and the cable tensions simultaneously minimized.

关键词： Human motion repeatability Activities of Daily Living(ADL) Analysis of Variance(AnOVA) Task workspace Cable-driven parallel robot Upper limb rehabilitation Optimization

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Efectsofbonegraftsonhematopoieticrecoveryinchimeric─resistantcombination

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吉林大学学报(医学版) 1996年第6期 12-16页

作者： Li Yong′an,Li Zhichao,Hiro ko Hisha ,fan Hongxue Dept.of Toxicology,n.B.Univ.of med Sciences first Dept.of Pathology,Kansai med Univ.

Ｅｆｅｃｔｓｏｆｂｏｎｅｇｒａｆｔｓｏｎｈｅｍａｔｏｐｏｉｅｔｉｃｒｅｃｏｖｅｒｙｉｎｃｈｉｍｅｒｉｃ┐ｒｅｓｉｓｔａｎｔｃｏｍｂｉｎａｔｉｏｎＬｉＹｏｎｇ′ａｎ，ＬｉＺｈｉｃｈａｏ，ＨｉｒｏｋｏＨｉｓｈａ＊，Ｆａｎ... 详细信息

Ｅｆｅｃｔｓｏｆｂｏｎｅｇｒａｆｔｓｏｎｈｅｍａｔｏｐｏｉｅｔｉｃｒｅｃｏｖｅｒｙｉｎｃｈｉｍｅｒｉｃ┐ｒｅｓｉｓｔａｎｔｃｏｍｂｉｎａｔｉｏｎＬｉＹｏｎｇ′ａｎ，ＬｉＺｈｉｃｈａｏ，ＨｉｒｏｋｏＨｉｓｈａ＊，ＦａｎＨｏｎｇｘｕｅ（Ｄｅｐｔ．ｏｆＴｏ...

关键词： bone marrow transplantation stromal cells chimerism resistance PPAGESS

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