The tests and their optimal values are as follows: Signs of a runaway inflammation train. Fat cells, and belly fat in particular, send out lots of pro-inflammatory cytokines. Symptoms such as heartburn, acid reflux, gas, and belching are indications of a gut that in inflamed. Inflammation can cause prostate problems to emerge such as BPH and prostatitis Out of it. Feeling tired, irritable, and not as mentally sharp as you used to be?
These are all signs of an inflamed gut Insufficient sleep. You need sufficient sleep hours per night for your body to repair itself. If you are getting less than 6 hours per night on a regular basis, you are not allowing critical restoration to take place. In fact, you are tired.
If you wake up anxious and tense, you will not be equipped to handle the stressors of your day. That means your immune system will be working overtime, resulting in systemic inflammation. Braking the inflammation train. This protein, which is found in wheat and several other common grains, can cause the intestinal wall to become irritated and porous.
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This creates a situation commonly known as leaky gut in which substances leak out of the intestinal tract into the bloodstream and lymph system, eventually resulting in systemic inflammation. Eliminate gluten from your diet for several weeks, then introduce one gluten food item back to see how you react.
If you experience symptoms such as gastrointestinal problems, anxiety, fatigue, skin reactions, and headache, then you are likely hypersensitive to gluten.
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Base your meals on fresh fruits and vegetables, whole grains, legumes, olive oil, beans, nuts, seeds, herbs, and spices. Some specific foods in these categories that are regarded as anti-inflammatory include dark leafy greens, nuts, bell and hot peppers, tomatoes beets, ginger, turmeric, garlic, onions, olive oil, berries, and tart cherries. Anti-inflammatory herbs and spices such as turmeric, ginger, cloves, curry, cinnamon, sage, and marjoram, among others, should be part of your daily diet and at every meal whenever possible.
Go easy on anti-inflammatory drugs. Churning out the stress hormones like cortisol promotes inflammation. Book file PDF easily for everyone and every device. This Book have some digital formats such us :paperbook, ebook, kindle, epub, fb2 and another formats. Do spicy foods cause stomach ulcers? The surprising truth South China Morning Post. Gordie: A Hockey Legend. Chronic Inflammation is a Silent Killer of Men! A Womans High Calling. Similar authors to follow High levels of stress or chronic stress means the body is continuously exposed to the stress hormone cortisol.
The surprising truth. Lexical Semantics: Semantic Fields and Collocations. Coated paper made under high shear and at a high drying temperature showed fewer surface defects because the CNF gel structure was destroyed under the high-shear condition. Lithium—sulfur Li—S batteries as among the most promising energy storage devices possess high theoretical capacity and energy density but suffer from the polysulfide dissolution, which hinders their practical application.
Nanoparticle dispersion is important for the performance of rubber compounds. Herein, ionic liquids ILs and silane are used to prepare silica-filled butadiene rubber vulcanizates. The results show that replacement of a half of silane by ILs could greatly improve the dispersions of silica and zinc oxide, restrain the migration of sulfur and other additives inside the composite, and maintain the cross-linking degree of the matrix possibly by suppressing the adsorption of sulfur and other additives by silica. The regulated filler dispersity and matrix cross-linking strongly influence the dynamic rheological behaviors of the vulcanizates as a function of silica volume fraction.
In comparison with silane, the introduction of ILs could improve the reinforcement effect, reduce energy dissipation, and lower the frequency dependences of loss modulus and loss tangent in the linear region.
First-principles density functional theory calculations are used to study the presence of Mo in the MgO support and its effect on the adsorption of Cu and Co nanocatalyst particles, as well as the mechanisms of C2H2 adsorption onto those nanoparticles. Furthermore, the initial steps of C2H2 dissociation on MgO-supported Cu and Co catalyst nanoparticles are investigated. Calculated formation energies suggest that the most likely locations of Mo-dopant atoms are on the top layer of the MgO support and under the overlying catalyst nanoparticles.
These energy barriers are considerably lower on Co compared to those on Cu nanoparticles. Overall, dehydrogenation is the most likely initial stage of the decomposition of C2H2 on both catalysts supported on Mo-doped MgO. Traditional process monitoring methods construct a single monitoring model to detect if a fault happened. But the development of industrial technology has made industrial processes increasingly complex and huge.
When considering local or quality-related faults, especially tiny faults in complex large-scale industrial processes, it is difficult to accurately detect these faults using a single monitoring model. Therefore, a novel distributed process monitoring framework for quality-related fault detection is proposed in this paper. To availably deal with a large number of process variables in large-scale processes, this paper introduces the idea of community partitioning of complex networks to carry out subblock division.
Here, the fast unfolding algorithm is used for multiblock division of process variables. Then, the modified principal component regression MPCR model is constructed in each subblock to detect quality-related and unrelated faults. To get an intuitive monitoring result, Bayesian fusion based on probability weighting is applied to combine the detection results of all subblocks.
Afterward, the cumulative contribution plot based on multiblock fast-MPCR is used for fault diagnosis. The benefits of distributed MPCR models are illustrated through a numerical experiment and the Tennessee Eastman TE process; the results indicate the superiority compared with other monitoring methods. Pressure swing adsorption PSA is a promising alternative among currently available technologies for carbon capture due to its low energy requirements. Still, the design of the appropriate PSA cycle for a given adsorbent material is a challenge that must be addressed to make PSA commercially competitive for carbon capture applications.
In this work, we propose and test a model reduction-based approach that systematically generates low-order representations of rigorous PSA models. These reduced-order models are obtained by training artificial neural networks on data collected from full partial differential algebraic equation PDAE model simulations.
The main contribution of this paper is the development of surrogate models for every possible step in PSA cycles: pressurization, adsorption, and depressurization steps in cocurrent and counter-current operation. Three different PSA cycles three-step, Skarstrom, and five-step cycle for postcombustion carbon capture applications were employed for training purposes, and two adsorbents, Ni-MOF and zeolite 13X, were chosen to evaluate the surrogate models under optimized cycle conditions. Average mean square errors, for dimensionless state variables, of 1.
These results suggest that the use of machine learning techniques to develop PSA surrogate models is feasible and that these models can be implemented in optimization environments to synthesize PSA cycles. The MRCPSP-AP arises in many real-world applications when two or more activities can serve as the required precursor to some subsequent activity, and it aims to determine not only the optimal schedule but also the optimal activity network.
We propose a total of seven discrete-time models and compare their numerical tractability through comprehensive computational studies on literature benchmarks. We also extend the well-known critical path method to handle the existence of alternative prerequisites, allowing us to precalculate tight time windows for each activity. Our computational study reveals that a formulation implementing the generalized precedence relationships in a time-aggregated fashion dominates the rest, in terms of solution quality and runtime.
This work addresses two key issues in the design of control systems based on proportional integral PI lineal controllers for intensified reactive distillation configurations to produce diphenyl carbonate: i the practical controllability of the process that inherently leads to the setting of control configurations and ii the tuning of corresponding PI controllers in a systematic framework. For the first issue, through the relative gain array the appropriate control loops are established, and an operability index is proposed as a complement to establish the practical feasibility of control loops in complex and highly sensitive systems.
For the second issue, a technique based on stable pole assignment is applied, where explicit tuning relationships enable the simultaneous adjustment of all control loops through only one parameter. The performance of the control systems is illustrated through simulations which show that resulting control configurations are effective, and that PI controllers can be tuned in a practical and systematic framework.
In the field of multivariate statistical process monitoring MSPM , fault isolation has attracted increasing attention, due to its importance in ensuring process reliability and product quality.
However, the existing fault isolation methods are mostly limited to linear settings with single variable isolation. For nonlinear modeling, the kernel method is commonly used, but the time for solving a kernel matrix and its storage required in the traditional method increase sharply with large sample size.
To solve these issues, a multivariate fault isolation method based on accelerated kernel canonical correlation analysis AKCCA is proposed. In the new method, kernel canonical correlation analysis is utilized to associate variables with process anomaly and extracting nonlinear structures. Furthermore, full rank factorization is embedded in kernel matrix approximation while performing eigenvalue decomposition EVD , which substantially reduces the storage and computational expense.
In addition, faulty relevance of each variable is newly calculated, which improves the accuracy of fault isolation for nonlinear processes. Heat and work are two common forms of energy.ciapurnaumonbo.ml
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Over past decades, thermal energy recovery via heat integration has been very successful in the process industry. Recovery of mechanical energy, however, has not drawn sufficient attention until recently. It is shown that mechanical energy can be recovered systematically through integrating work exchange networks in plants.
It is conceived that the pressure-driven work exchange device can be used as a main type of unit in work exchanger networks. In this paper, we introduce a piston-type device to perform work exchange for mechanical energy recovery among pairs of process streams in the gas phase. Computational fluid dynamics-based modeling and simulation is conducted to study the design of the device and its operational behavior under different operating conditions.
A case study is illustrated to demonstrate its application potential for mechanical energy recovery. Sulfur emissions from transportation fuels can be detrimental for fuel cell applications. Adsorptive desulfurization using bimetal-exchanged mesoporous Y zeolites exhibit high capacity and selectivity for sulfur.
Industrial & Engineering Chemistry Research | Vol 58, No 39
The combination of pore structure and metals allows for improved accessibility to the active sites and stronger bond formations. Our studies have shown that the synergy between Ce and Cu plays a crucial role. The experimental results were supported by characterization techniques and spectroscopic analysis. A reduction in capacity was realized when naphthalene was added.
Our study revealed that the metal composition and configuration can be controlled to enhance the adsorption. After two cycles of regeneration, the adsorption capacity hardly decreased. This article demonstrates the enhanced organic separation via microwave-induced sweep gas membrane distillation from its aqueous mixture. The membrane performances in terms of ethanol vapor flux and separation factors were evaluated and compared between microwave-induced membrane distillation MIMD and MD using conventional heating.
The combination of CNIM and microwave heating was most effective where the ethanol flux reached up to Performance improvements in MIMD were due to nonthermal effects such as localized superheating and break down of hydrogen-bonded ethanol—water clusters. The lower energy consumption along with higher flux and separation factor in MIMD represents a major advancement in the state of the art in solvent separation by MD.
PEGs, with different molecular weights, show excellent ability for artemisinin extraction, and the extraction efficiency decreased with the increase of molecular weight. It was also demonstrated that ultrasonic irradiation could further enhance extraction efficiency compared with conventional water bath heating. Results indicate that the extraction amount of artemisinin from one gram of the leaves could reach Compared with Soxhlet extraction using petroleum ether PE , the method developed here shows higher extraction efficiency Additionally, artemisinin in the PEG solution can be recovered using resin adsorber.
Moreover, the kinetic and mechanism studies of the extraction process revealed that ultrasonic irradiation could enhance mass transfer and the hydrogen bonding interactions between artemisinin and PEG further facilitate the separation of artemisinin from the leaves.
This work provides an alternative process for efficient artemisinin extraction by using an environmentally benign medium with outfield intensification, which could be potentially extended to the production of other natural drugs. Uranium, as an energy source and radioactive waste, is very important in the nuclear fuel cycle.
Recovery of uranium from nuclear waste solution is essential for further treatment and disposal. The U-exchange kinetics perfectly conforms to the pseudo-second-order dynamic model, which reveals the chemical adsorption process. In addition, the uranyl tricarbonate in the loaded material could be easily eluted with a diluted hydrochloric acid.
These advantages make P—C4 a new potential material for separating uranium from alkaline solution. Although an expensive cryogenic step can be used to perform such separation, it remains ineffective in purifying CO from syngas streams with a significant N2 content. Taking advantage of the lower energy requirement of adsorption processes, we have explored the use of metal—organic frameworks MOFs as adsorbents for this difficult separation.
The ability to capture asphaltene precipitation conditions is key to minimize costs associated with production caused by asphaltene depositing and blocking wellbores and pipelines. In this work, modeling of asphaltene precipitation of crude oils is performed using the perturbed chain form of the statistical associating fluid theory PC-SAFT equation of state EoS. The characterization of choice is crucial to the accuracy obtained from any equation of state. Therefore, an alternative characterization is proposed where the molecular weight of asphaltenes is assumed to be temperature-dependent.
This allows more flexibility in matching experimental data. Results from six crude oils ranging from Middle East to Gulf of Mexico with varying gas injections are shown and compared. The proposed characterization shows some advantage over the original characterization especially in the low-temperature region. Most importantly, it illustrates that better accuracy can be obtained without the need to consider association as proposed by some. In general, both characterizations give asphaltene precipitation tendency predictions within acceptable range of error.
However, the modified characterization can be most beneficial when high accuracy is needed such as in calculating the amount of asphaltene anticipated to deposit. A low-temperature process involving the formation of dry ice to separate carbon dioxide CO2 from a CO2-containing mixture is proved to be energy efficient. An accurate prediction of the phase equilibria of the components is necessary for the development of such a process. The current work extended a model for simultaneous calculation of phase stability and flash computations for a multicomponent and multiphase system to a system involving the formation of dry ice.
This study derived composition-independent correlations of solid—vapor and solid—liquid and introduced these correlations into a Gibbs energy minimization algorithm with the stability variable of phase in predicting the phase diagram of pure CO2 and the solid—fluid-phase equilibria of a methane CH4 —CO2 binary mixture. Experimental data were compiled for a CH4—CO2 mixture involving the solid—vapor, solid—liquid, and solid—liquid—vapor equilibria. In general, modeling results agreed with the experimental data, and discrepancies between the modeling and experimental data have been well identified and discussed.
The solid—vapor-phase equilibrium region that can be used for low-temperature CO2 separation was suggested. On the basis of work by Bernard and Blum [Bernard, O. Matter Phys. B , , —], this work presents and validates a molecular-thermodynamic model for lithium salt activity coefficients in aqueous and nonaqueous single- and mixed-solvent systems. The Binding Mean Spherical Approximation gives electrolyte activity due to long-range electrostatic forces, short-range hard-sphere repulsion, and ion-pair formation.
The theory shows good agreement with measured salt activities up to 3 molar in aqueous and nonaqueous solvents using a solvent-dependent, concentration-independent, center-to-center distance of closest approach between ions as the single fitting parameter for each electrolyte system. For mixed-solvent electrolytes, the local solvation environment around the ions dictates short-range interactions. For a particular salt in a binary solvent mixture at fixed temperature, the model predicts salt activity coefficients using only the fitted single-solvent distances-of-closest approach.
Solubility data of 1,3,5-trioxane in methyl acetate and methyl acrylate were reported. Proper model and parameters were applied in the designed separation process of the quaternary mixture. Ebullated bed hydroprocessors are a widely adopted technology for the upgrading of heavy oil. Because of the energy-intensive nature of this process, improvements and optimizations are highly desirable. As such, a complete understanding of the complex multiphase fluid dynamics in these units is still required to provide insight for future performance improvement.
Specifically, current literature has not addressed the performance of the internal gas—liquid separation within the reactor and the impact of resulting entrained gas on overall reactor fluid dynamics. In this study, a novel numerical fluid dynamic model for a commercial scale ebullated bed hydroprocessor is proposed. A liquid residence time-based gas—liquid separation model is shown to be representative through analysis of commercial operating data. Determination of minimum miscibility pressure MMP is an imperative component of optimally designing miscible gas injection processes.
Semianalytical method of characteristics MOC is superior to other available computational and experimental methods for MMP determinations. This drawback has been addressed in a study wherein a time-consuming and cumbersome modification has been suggested. In this study, a prompt and convenient approach is introduced to precisely consider the impact of bifurcated phase behavior on MMP calculations.
This approach is established based upon an innovative hypothesis that bifurcated phase behavior merely emerges where a key component with the largest percentage in the mixture disappears through the composition route from initial oil to the injection gas. The performance of the proposed approach is minutely examined within several displacement scenarios with an emphasis on pure CO2 injection. The obtained results confirm that the bifurcated phase behavior can be accurately distinguished within the composition route. Furthermore, the procedure of MMP calculations is achieved mush swifter especially for multicomponent mixtures i.
On the basis of the above arguments, it is clear-cut that the proposed method holds a remarkable potential in the applications related to miscible displacement. In this work, a predictive nonrandom two-liquid NRTL equation analyzed from binary experimental data is proposed to model the solid—liquid equilibrium in the n-alkanes mixture. The predictive NRTL describes the nonideality of the ordered solid phase, whose binary interaction parameters are obtained from a correlation formula. The mathematical form of the correlation formula is summarized from the relationship between the excess Gibbs free energy and the carbon number mismatch parameter in binary mixtures.
The coefficients of the correlation formula are regressed from binary experimental data. With this model, it is possible to provide ordered-rotator solid transition phase diagrams with complete or partial miscibility. The crystallization behaviors of nine mixtures are also used to test the model, indicating adequate accuracy. Furthermore, the predictive NRTL can predict potential multiple solid solutions, whose number is changeable with the n-alkanes range of the feed, and the concentration of each solid solution is a normal distribution.
Shifts in the pH of buffer solutions upon freezing have received much attention particularly in the life sciences, as such pH variations during freezing may damage biological samples, biomolecules, and pharmaceuticals. The understanding and prediction of the said pH changes upon freezing are essential to utilize buffer solutions in a wide temperature range, including subzero temperatures.
Phosphate is of particular importance for aqueous buffer preparation as it covers a wide pH range and displays high biocompatibility. However, the phase behavior and pH changes in phosphate buffers at subzero temperatures are very complex due to the variety of species involved in the phase and acid—base equilibria.