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Evaluation of Limestone -Based Remediation Technique in Sediments Affected by Mining Activities
Carmen Perez-Sirvent,M. Jose Martinez-Sanchez,M.luz Garcia-Lorenzo,Eva Gonzalez,Salvadora Martinez,Victor Perez,Lucia Martinez,Jose Molina,Carmen Hernandez,Jaume Bech,Manuel Hernandez-Cordoba 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.6
A GENERALIZATION OF MULTIPLICATION MODULES
Perez, Jaime Castro,Montes, Jose Rios,Sanchez, Gustavo Tapia Korean Mathematical Society 2019 대한수학회보 Vol.56 No.1
For $M{\in}R-Mod$, $N{\subseteq}M$ and $L{\in}{\sigma}[M]$ we consider the product $N_ML={\sum}_{f{\in}Hom_R(M,L)}\;f(N)$. A module $N{\in}{\sigma}[M]$ is called an M-multiplication module if for every submodule L of N, there exists a submodule I of M such that $L=I_MN$. We extend some important results given for multiplication modules to M-multiplication modules. As applications we obtain some new results when M is a semiprime Goldie module. In particular we prove that M is a semiprime Goldie module with an essential socle and $N{\in}{\sigma}[M]$ is an M-multiplication module, then N is cyclic, distributive and semisimple module. To prove these results we have had to develop new methods.
Sanchez, Cesar,Camus, Mauricio,Medina, Lidia,Oddo, David,Artigas, Rocio,Sepulveda, Alejandra Perez,Domainguez, Francisco,Razmilic, Dravna,Navarro, Maria Elena,Galindo, Hector,Acevedo, Francisco Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.12
Background: Pathological factors, based mainly on immunohistochemistry (IHC) and histological differentiation, are mostly used to differentiate breast cancer (BC) subtypes. Our present aim was to describe the characteristics and survival of a relapsing BC patient cohort based on clinico-pathologic subtypes determined for the primary tumors. Methods: We used a clinico- pathological definition of BC subtypes based on histological grade (HG), estrogen receptor (ER), progesterone receptor (PgR),and epidermal growth factor receptor type 2 (HER2) expression assessed by IHC. We determined variables associated with loco-regional recurrence (LRR), second primaries (SP), systemic recurrence (SR) and post-recurrence survival (PRS). Results: Out of 1,702 patients, 240 (14%) had an event defined as recurrence. Those with recurrent disease were significantly younger than those without,and were initially diagnosed at more advanced stages, with larger tumors, greater lymph nodal involvement and higher HG. With a median follow up of 61 months (1-250), 4.6% of patients without recurrence and 56.6% of patients with an event defined as recurrence had died. The median PRS for the LRR group was 77 months; 75 months for those who developed a SP and 22 months for patients with an SR (p <0.0001). In SR cases, the median PRS was shorter for ER- tumors than for ER+ tumors (15 vs. 26 months, respectively; p = 0.0019, HR 0.44; CI: 0.25-0.44). Conclusions: Subtype, defined through classic histopathologic parameters determined for primary tumors, was found to eb related to type of recurrence and also to prognosis after relapse.
E2E Network Slice Management Framework for 5G Multi-tenant Networks
Chirivella-Perez, Enrique Chirivella,Salva-Garcia, Pablo,Sanchez-Navarro, Ignacio,Alcaraz-Calero, Jose,Wang, Qi 한국통신학회 2023 Journal of communications and networks Vol.25 No.3
Network slicing is one of the cornerstone featuresof the fifth generation (5G) networks to enable the multiplexingof virtualised logical networks over the same physical networkinfrastructure for various vertical business services. Architecturesbased on network slicing enable network operators to offer end-to-end (E2E) vertical services whilst assuring fulfilling tailoredservice level agreement (SLA) requirements. Despite the numer-ous benefits that this concept offers, the need for efficient, scalableand holistic E2E management of network slicing significantlycomplicates network operators’ network management and im-poses significant challenges in the quality of service (QoS). Thispaper proposes a novel intent-based slice manager frameworkover a service base 5G architecture that allows flexible definitionsto customise network slices, automates all essential managementtasks for 5G network slice providers, manages the life cycles ofall sorts of network slices, and guarantees their QoS in a unifiednetwork slice management framework. The proposed frameworkis empirically validated in a realistic large-scale 5G multi-tenantinfrastructure. The high scalability of the framework is basedon the empirical results supporting more than 512 physicalmachines, 534288 virtual machines and more than two millionnetwork interfaces.
Ivan Sanchez-Calleja,Alberto Martínez-Gutierrez,Ruben Ferrero-Guillén,Javier Díez-Gonzalez,Hilde Perez 한국정밀공학회 2024 International Journal of Precision Engineering and Vol.25 No.2
The advent of smart manufacturing (SM) has led to the creation of collaborative environments with cyber-physical systems (CPS) that generate added value. However, the performance of combined industrial operations between mobile CPS such as autonomous mobile robots (AMRs) and collaborative robots (cobots) is hampered by the high uncertainty between their relative spatial locations and the existence of heterogeneous communication protocols that create a barrier to their integration into production processes. For this reason, a novel contact system method (CSM) is proposed to determine the position of the AMR without the need for any additional hardware making use of an architecture that facilitates efficient communication between AMRs and cobots. For this purpose, a mathematical model has been defined to characterize the position of a spatial object with six degrees of freedom in order to calculate the deviation between the AMR and the cobot base. The proposed method has also been evaluated by quantifying the position and orientation error before and after applying the CSM. The effectiveness of the CSM method has been assessed in a real application case based on the feasibility of performing an assembly operation between a bearing and different shafts. The results show a significant improvement of 96.2% in positional accuracy and 85.4% in orientation compared to AMR accuracy. In addition, a 92.5% success rate was achieved in the assembly operation analyzed between a bearing and a shaft of the same diameter. Furthermore, the proposed architecture has enabled the coordination between the cobot and the AMR by automating the processes. Therefore, this work contributes to the field of SM by proposing a practical solution to the challenges of generating added value through the creation of collaborative environments with CPS.
A generalization of multiplication modules
Jaime Castro Perez,Jose Rios Montes,Gustavo Tapia Sanchez 대한수학회 2019 대한수학회보 Vol.56 No.1
For $M\in R$-Mod, $N\subseteq M$ and $L\in \sigma \left[ M \right] $ we consider the product $N_{M}L=\sum_{f\in {\rm Hom}_{R} ( M,L ) }f ( N ) $. A module $N\in \sigma \left[ M\right] $ is called an $M$-multiplication module if for every submodule $L$ of $N$, there exists a submodule $I$ of $M$ such that $L=I_{M}N$. We extend some important results given for multiplication modules to $M$-multiplication modules. As applications we obtain some new results when $M$ is a semiprime Goldie module. In particular we prove that $M$ is a semiprime Goldie module with an essential socle and $N$ $\in \sigma \left[ M\right] $ is an $M$ -multiplication module, then $N$ is cyclic, distributive and semisimple module. To prove these results we have had to develop new methods.
Some aspects of Zariski topology for multiplication modules and their attached frames and quantales
Jaime Castro Perez,Jose Rios,Gustavo Tapia Sanchez 대한수학회 2019 대한수학회지 Vol.56 No.5
For a multiplication $R$-module $M$ we consider the Zariski topology in the set $Spec\left( M\right) $ of prime submodules of $M$. We investigate the relationship between the algebraic properties of the submodules of $M$ and the topological properties of some subspaces of $Spec\left( M\right) $. We also consider some topological aspects of certain frames. We prove that if $ R $ is a commutative ring and $M$ is a multiplication $R$-module, then the lattice $Semp\left( M/N\right) $ of semiprime submodules of $M/N$ is a spatial frame for every submodule $N$ of $M$. When $M$ is a quasi projective module, we obtain that the interval $\mathcal{\uparrow } (N)^{Semp\left( M\right) }=\left\{ P\in Semp\left( M\right) \mid N\subseteq P\right\} $ and the lattice $Semp\left( M/N\right) $ are isomorphic as frames. Finally, we obtain results about quantales and the classical Krull dimension of $M$.
Properties of the avocado oil extracted using centrifugation and ultrasound-assisted methods
M. R. Perez-Saucedo,E. I. Jimenez-Ruiz,J. G. Rodrıguez-Carpena,J. A. Ragazzo-Sanchez,J. A. Ulloa,J. C. Ramırez-Ramırez,C. R. Gaston-Pena,P. U. Bautista-Rosales 한국식품과학회 2021 Food Science and Biotechnology Vol.30 No.8
The aim of this work was to evaluate the technologies effect of cold extraction by centrifugation (CE) and ultrasound-assisted (US-CE) methods without adding water, on the avocado oil yield, nutritional composition, physicochemical characteristics, oxidative stability (oxidation temperature and time, besides activation energy) and accelerated shelf life regarding hexane extraction (control). The US-CE improved the physicochemical properties such as acidity, peroxides, and iodine indexes regarding CE and Control. US-CE improved the yield, nutritional quality of fatty acids, oxidative stability, shelf life, and ω-6/ω-3 ratio regarding CE. Furthermore, US-CE improved the ratio yield/time extraction of the oil and increased the oxidation temperature regarding control. The main advantage of oils extracted using CE and US-CE concerning control was higher oxidative stability. The most representative polyunsaturated fatty acids identified in all treatments were γ-linolenic and conjugated α-linolenic acids. α-linolenic acid was only detected in US-CE and control.
Effect of Storage at 10OC on Aroma of Tomato (Lycopersicon esculentum) Saladet Grown in Mexico
Fernando Diaz de Leon-Sanchez,Lucia Lopez,Fernando Rivera-Cabrera,Clara Pelayo-Zaldivar,Hector B. Escalona,Beatriz Buentello,Francisco J. Fernandez,Adolfo Garcia,Laura J. Perez-Flores 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-