THERE was a giant map unfurled beside him and as Lawrence Muiruri Ngugi spoke, he kept on gesturing at it for illumination. The CEO of the Nairobi Center for International Arbitration （NCIA） in Kenya traced the path...THERE was a giant map unfurled beside him and as Lawrence Muiruri Ngugi spoke, he kept on gesturing at it for illumination. The CEO of the Nairobi Center for International Arbitration （NCIA） in Kenya traced the pathways of some of the biggest infrastructure projects in Nairobi： a mammoth oil pipeline, a highway and a standard-gauge railway （SGR）.展开更多
As commercial drone delivery becomes increasingly popular,the extension of the vehicle routing problem with drones(VRPD)is emerging as an optimization problem of inter-ests.This paper studies a variant of VRPD in mult...As commercial drone delivery becomes increasingly popular,the extension of the vehicle routing problem with drones(VRPD)is emerging as an optimization problem of inter-ests.This paper studies a variant of VRPD in multi-trip and multi-drop(VRP-mmD).The problem aims at making schedules for the trucks and drones such that the total travel time is minimized.This paper formulate the problem with a mixed integer program-ming model and propose a two-phase algorithm,i.e.,a parallel route construction heuristic(PRCH)for the first phase and an adaptive neighbor searching heuristic(ANSH)for the second phase.The PRCH generates an initial solution by con-currently assigning as many nodes as possible to the truck–drone pair to progressively reduce the waiting time at the rendezvous node in the first phase.Then the ANSH improves the initial solution by adaptively exploring the neighborhoods in the second phase.Numerical tests on some benchmark data are conducted to verify the performance of the algorithm.The results show that the proposed algorithm can found better solu-tions than some state-of-the-art methods for all instances.More-over,an extensive analysis highlights the stability of the pro-posed algorithm.展开更多
A simulated oil viscosity prediction model is established according to the relationship between simulated oil viscosity and geometric mean value of T2spectrum,and the time-varying law of simulated oil viscosity in por...A simulated oil viscosity prediction model is established according to the relationship between simulated oil viscosity and geometric mean value of T2spectrum,and the time-varying law of simulated oil viscosity in porous media is quantitatively characterized by nuclear magnetic resonance(NMR)experiments of high multiple waterflooding.A new NMR wettability index formula is derived based on NMR relaxation theory to quantitatively characterize the time-varying law of rock wettability during waterflooding combined with high-multiple waterflooding experiment in sandstone cores.The remaining oil viscosity in the core is positively correlated with the displacing water multiple.The remaining oil viscosity increases rapidly when the displacing water multiple is low,and increases slowly when the displacing water multiple is high.The variation of remaining oil viscosity is related to the reservoir heterogeneity.The stronger the reservoir homogeneity,the higher the content of heavy components in the remaining oil and the higher the viscosity.The reservoir wettability changes after water injection:the oil-wet reservoir changes into water-wet reservoir,while the water-wet reservoir becomes more hydrophilic;the degree of change enhances with the increase of displacing water multiple.There is a high correlation between the time-varying oil viscosity and the time-varying wettability,and the change of oil viscosity cannot be ignored.The NMR wettability index calculated by considering the change of oil viscosity is more consistent with the tested Amott(spontaneous imbibition)wettability index,which agrees more with the time-varying law of reservoir wettability.展开更多
The two one-state-variable, rate- and state-dependent friction laws, i.e., the slip and slowness laws, are com- pared on the basis of dynamical behavior of a one-degree-of-freedom spring-slider model through numerical...The two one-state-variable, rate- and state-dependent friction laws, i.e., the slip and slowness laws, are com- pared on the basis of dynamical behavior of a one-degree-of-freedom spring-slider model through numerical simulations. Results show that two （normalized） model parameters, i.e., A （the normalized characteristic slip distance） and β-α （the difference in two normalized parameters of friction laws）, control the solutions. From given values of △, β, and α, for the slowness laws, the solution exists and the unique non-zero fixed point is stable when △〉（β-α）, yet not when △ 〈（β-α）. For the slip law, the solution exists for large ranges of model parameters and the number and stability of the non-zero fixed points change from one case to another. Results suggest that the slip law is more appropriate for controlling earthquake dynamics than the slowness law.展开更多
It is found from textbooks and literature that there are three different statements for the third law of thermodynamics,i.e., the Nernst theorem, the unattainability statement of absolute zero temperature, and the hea...It is found from textbooks and literature that there are three different statements for the third law of thermodynamics,i.e., the Nernst theorem, the unattainability statement of absolute zero temperature, and the heat capacity statement. It is pointed out that such three statements correspond to three thermodynamic parameters, which are, respectively, the entropy,temperature, and heat capacity, and can be obtained by extrapolating the experimental results of different parameters at ultralow temperatures to absolute zero. It is expounded that because there is no need for additional assumptions in the derivation of the Nernst equation, the Nernst theorem should be renamed as the Nernst statement. Moreover, it is proved that both the Nernst statement and the heat capacity statement are mutually deducible and equivalent, while the unattainability of absolute zero temperature is only a corollary of the Nernst statement or the heat capacity statement so that it is unsuitably referred to as one statement of the third law of thermodynamics. The conclusion is that the Nernst statement and the heat capacity statement are two equivalent statements of the third law of thermodynamics.展开更多
Hyperspectral image classification stands as a pivotal task within the field of remote sensing,yet achieving highprecision classification remains a significant challenge.In response to this challenge,a Spectral Convol...Hyperspectral image classification stands as a pivotal task within the field of remote sensing,yet achieving highprecision classification remains a significant challenge.In response to this challenge,a Spectral Convolutional Neural Network model based on Adaptive Fick’s Law Algorithm(AFLA-SCNN)is proposed.The Adaptive Fick’s Law Algorithm(AFLA)constitutes a novel metaheuristic algorithm introduced herein,encompassing three new strategies:Adaptive weight factor,Gaussian mutation,and probability update policy.With adaptive weight factor,the algorithmcan adjust theweights according to the change in the number of iterations to improve the performance of the algorithm.Gaussianmutation helps the algorithm avoid falling into local optimal solutions and improves the searchability of the algorithm.The probability update strategy helps to improve the exploitability and adaptability of the algorithm.Within the AFLA-SCNN model,AFLA is employed to optimize two hyperparameters in the SCNN model,namely,“numEpochs”and“miniBatchSize”,to attain their optimal values.AFLA’s performance is initially validated across 28 functions in 10D,30D,and 50D for CEC2013 and 29 functions in 10D,30D,and 50D for CEC2017.Experimental results indicate AFLA’s marked performance superiority over nine other prominent optimization algorithms.Subsequently,the AFLA-SCNN model was compared with the Spectral Convolutional Neural Network model based on Fick’s Law Algorithm(FLA-SCNN),Spectral Convolutional Neural Network model based on Harris Hawks Optimization(HHO-SCNN),Spectral Convolutional Neural Network model based onDifferential Evolution(DE-SCNN),SpectralConvolutionalNeuralNetwork(SCNN)model,and SupportVector Machines(SVM)model using the Indian Pines dataset and PaviaUniversity dataset.The experimental results show that the AFLA-SCNN model outperforms other models in terms of Accuracy,Precision,Recall,and F1-score on Indian Pines and Pavia University.Among them,the Accuracy of the AFLA-SCNN model on Indian Pines reached 99.875%,and the Accuracy on PaviaUniversity reached 98.022%.In conclusion,our proposed AFLA-SCNN model is deemed to significantly enhance the precision of hyperspectral image classification.展开更多
The Riemann problem for a two-dimensional 2 x 2 nonstrictly hyperbolic system of nonlinear conservation laws has been considered for constant initial data having discontinuities on three rays with vertex at the origin...The Riemann problem for a two-dimensional 2 x 2 nonstrictly hyperbolic system of nonlinear conservation laws has been considered for constant initial data having discontinuities on three rays with vertex at the origin. The solutions are constructed for some one-J and non-R initial data. One kind of new discontinuity, which is labelled as the delta-shock wave, appears in some solutions. The delta-shock wave is a discontinuity plane that is the suport of a generalized function.展开更多
To examine the effect of bedding angle upon burst proneness in terms of energy,phyllites with seven various bedding angles are selected for conventional uniaxial compression and single-cyclic loading eunloading uniaxi...To examine the effect of bedding angle upon burst proneness in terms of energy,phyllites with seven various bedding angles are selected for conventional uniaxial compression and single-cyclic loading eunloading uniaxial compression tests.The ejection and failure during compression process of phyllites are monitored in real-time by high-speed camera system.The results demonstrate that the phyllites with different bedding angles all consistently follow the linear energy storage and dissipation(LESD)law during compression.The ultimate energy storage of phyllites with varying bedding angles can be calculated precisely via using the LESD law.Based on this,four kinds of energy-based rockburst indices are applied to quantitatively assess the burst proneness for phyllites.Combined with the recorded images of high-speed camera system,ejection distance,and mass of rock fragments and powder,the burst proneness for phyllites with various bedding angles is qualitatively evaluated adopting the far-field ejection mass ratio.Next,burst proneness of anisotropic phyllites is assessed quantitatively and qualitatively.It is found that phyllites with bedding angles of 0°,15°,and 90°have a high burst proneness,and that with bedding angle of 30°has a medium burst proneness,whereas the ones with bedding angles of 45°,60°,and 75°have a low burst proneness.Finally,the published experimental data of shale and sandstone specimens with different bedding angles are extracted,and it is preliminarily verified that the bedding angle does not change the LESD law of rocks.展开更多
BACKGROUND Hepatocellular carcinoma(HCC)is the most common form of liver cancer that has limited treatment options and a poor prognosis.Transarterial chemoembolization(TACE)is the first-line treatment for intermediate...BACKGROUND Hepatocellular carcinoma(HCC)is the most common form of liver cancer that has limited treatment options and a poor prognosis.Transarterial chemoembolization(TACE)is the first-line treatment for intermediate-stage HCC but can induce tumour hypoxia,thereby promoting angiogenesis.Recent studies suggested that combining TACE with anti-angiogenic therapies and immunotherapy might im-prove efficacy.Lenvatinib,a tyrosine kinase inhibitor,has demonstrated superior outcomes compared to sorafenib,while immune checkpoint inhibitors such as sintilimab show potential when combined with TACE.However,the efficacy and safety of TACE combined with lenvatinib and sintilimab(TACE+SL)compared to TACE with lenvatinib alone(TACE+L)in patients with intermediate-ad-vanced HCC has not yet been investigated.AIM To evaluate the efficacy and safety of TACE+SL therapy in comparison to TACE+L therapy in patients with intermediate-advanced HCC.METHODS A retrospective analysis was performed on patients with intermediate-advanced HCC who received TACE plus lenvatinib with or without sintilimab between September 2019 and September 2022.Baseline characteristics were compared,and propensity score matching was applied.Overall survival(OS),progression-free survival(PFS),and objective response rate(ORR)were evaluated between the two groups,and adverse events were analyzed.RESULTS The study included 57 patients,with 30 in the TACE+SL group and 27 in the TACE+L group.The TACE+SL group demonstrated significantly improved median PFS and OS compared to the TACE+L group(PFS:14.1 months vs 9.6 months,P=0.016;OS:22.4 months vs 14.1 months,P=0.039),along with a higher ORR(70.0%vs 55.6%).After propensity score matching,30 patients were included,with the TACE+SL group again showing longer median PFS and a trend toward improved OS(PFS:14.6 months vs 9.2 months,P=0.012;OS:23.9 months vs 16.3 months,P=0.063),and a higher ORR(73.3%vs 53.3%).No severe adverse events were reported.CONCLUSION TACE+SL demonstrated superior outcomes in terms of OS and PFS,compared to TACE+L.These findings suggest that the addition of sintilimab might enhance the therapeutic response in patients with intermediate-advanced HCC.展开更多
In electromagnetics, Coulomb’s law is a very classic formula. Almost all textbooks give this formula, but none of them give a detailed corresponding theoretical derivation. In order for beginners of physics to better...In electromagnetics, Coulomb’s law is a very classic formula. Almost all textbooks give this formula, but none of them give a detailed corresponding theoretical derivation. In order for beginners of physics to better understand the physical meaning of this formula, we explored the source, the physical model and mechanism of this formula. Based on the principle that the interaction between two different fields can generate energy density, which is equal to the pressure, we analyzed the distribution of the electric field energy density as well as the corresponding pressure on the charged surface. Through the rigorous mathematical derivation, we give the theoretical derivation of this formula.展开更多
Understanding the dynamics of phase boundaries in fluids requires quantitative knowledge about the microscale processes at the interface.We consider the sharp-interface motion of the compressible two-component flow an...Understanding the dynamics of phase boundaries in fluids requires quantitative knowledge about the microscale processes at the interface.We consider the sharp-interface motion of the compressible two-component flow and propose a heterogeneous multiscale method(HMM)to describe the flow fields accurately.The multiscale approach combines a hyperbolic system of balance laws on the continuum scale with molecular-dynamics(MD)simulations on the microscale level.Notably,the multiscale approach is necessary to compute the interface dynamics because there is—at present—no closed continuum-scale model.The basic HMM relies on a moving-mesh finite-volume method and has been introduced recently for the compressible one-component flow with phase transitions by Magiera and Rohde in(J Comput Phys 469:111551,2022).To overcome the numerical complexity of the MD microscale model,a deep neural network is employed as an efficient surrogate model.The entire approach is finally applied to simulate droplet dynamics for argon-methane mixtures in several space dimensions.To our knowledge,such compressible two-phase dynamics accounting for microscale phase-change transfer rates have not yet been computed.展开更多
This work focuses on a Keller-Segel chemotaxis model, with an emphasis on its conservation laws. Through a new approach combined with the multiplier method, called the mixed method, we obtain conservation vectors that...This work focuses on a Keller-Segel chemotaxis model, with an emphasis on its conservation laws. Through a new approach combined with the multiplier method, called the mixed method, we obtain conservation vectors that are related and unrelated to symmetric information. In addition, some exact solutions with particular forms are obtained according to the method of conservation laws. These particular solutions are different from the group-invariant solutions.展开更多
There is a wide recognition that encompassing an obligation of good faith in every commercial contract is one of the most important advances in contract law in the twentieth century^([1]).Despite the fact that this co...There is a wide recognition that encompassing an obligation of good faith in every commercial contract is one of the most important advances in contract law in the twentieth century^([1]).Despite the fact that this concept has been incorporated in the vast majority of national legal systems,its precise scope and application may vary from one to another,depending on the commercial traditions and customs of each legal system^([2]).The fact that good faith has been treated differently in different national legal systems has also been reflected on the international level through its inclusion in international legal instruments,one of which is the United Nations Convention on Contracts for the International Sale of Goods(hereafter CISG).In this article,the legislative history of the CISG will be closely examined with the purpose of finding out how a compromise was reached between the common law countries,which expressly objected to the imposition of a duty of good faith,and the civil law countries,which explicitly endorse its incorporation.A logical result flowing from this historical examination,as will be submitted,is that the conceptual ambiguity of good faith is the underlying reasoning behind their fundamentally different attitudes towards the incorporation of this notion in the international commercial context.展开更多
Protecting unregistered trademarks is not only necessary but feasible.Although Articles 2 and 6 of the Anti-Unfair Competition Law of the People's Republic of China currently fail to provide effective protection f...Protecting unregistered trademarks is not only necessary but feasible.Although Articles 2 and 6 of the Anti-Unfair Competition Law of the People's Republic of China currently fail to provide effective protection for unregistered trademarks due to systemic deficiencies,its legal subsumption can be enhanced by reforming the application principles of general provisions,scientifically reconstructing the notion of"unfair competition,"and adopting an open legislative approach featuring"defining unfair competition+key illustrative examples."Meanwhile,by proactively incorporating the concept that unregistered trademarks constitute the property rights of their owners into the trademark law and strengthening regulations against trademark squatting,the application of the antiunfair competition law can be enhanced to provide more effective damage remedies for unregistered trademark holders.This approach would increase the legal costs of squatting,thereby achieving a dual governance effect of both cracking down on and preventing such practice.By rationally delineating the logical boundaries of anti-unfair competition protection in conjunction with the registration-based acquisition system under the trademark law,this approach scientifically resolves conflicts between the protection of unregistered trademarks and registration validity rules while providing proportionate remedies and respect for the former.Consequently,it achieves an organic unity of necessity and rationality,comprehensiveness and restraint,as well as foresight and pertinence in the protection of unregistered trademarks.展开更多
It is shown that time asymmetry is essential for deriving thermodynamic law and arises from the turnover of energy while reducing its information content and driving entropy increase. A dynamically interpreted princip...It is shown that time asymmetry is essential for deriving thermodynamic law and arises from the turnover of energy while reducing its information content and driving entropy increase. A dynamically interpreted principle of least action enables time asymmetry and time flow as a generation of action and redefines useful energy as an information system which implements a form of acting information. This is demonstrated using a basic formula, originally applied for time symmetry/energy conservation considerations, relating time asymmetry (which is conventionally denied but here expressly allowed), to energy behaviour. The results derived then explained that a dynamic energy is driving time asymmetry. It is doing it by decreasing the information content of useful energy, thus generating action and entropy increase, explaining action-time as an information phenomenon. Thermodynamic laws follow directly. The formalism derived readily explains what energy is, why it is conserved (1st law of thermodynamics), why entropy increases (2nd law) and that maximum entropy production within the restraints of the system controls self-organized processes of non-linear irreversible thermodynamics. The general significance of the principle of least action arises from its role of controlling the action generating oriented time of nature. These results contrast with present understanding of time neutrality and clock-time, which are here considered a source of paradoxes, intellectual contradictions and dead-end roads in models explaining nature and the universe.展开更多
In this work,firstly the general definition of law and types of law are presented.Then general definition of justice and types of justice are explained.Constructional and/or complementary theories are defined as gener...In this work,firstly the general definition of law and types of law are presented.Then general definition of justice and types of justice are explained.Constructional and/or complementary theories are defined as general/specific,and interaction theories,relationship theories,and hybrid theories are specifically mentioned.Accordingly,the interactions between the disciplines of law and justice are explained in more detail.Then,the general definition of engineering and philosophy of engineering are explained.The interactions between engineering and law are specifically evaluated,and interactions between engineering and 52 types of law are defined and case studies found in the literature are indicated for each.Then interactions between engineering and justice briefly mentioned.Relationships/interactions between engineering and 25 different types of justice discussed and evaluated with specific examples.Emphasis was placed on the historical development of the subject of philosophy in general,and philosophy of law was defined more specifically.Some of the philosophers of law and their areas of interest are presented in a table format and compared.The new perspective of philosophy was defined and the disciplines of R-Philosophy,R-Science,R-Justice,R-Law,R-Engineering,and R-Religion were expressed with the relevant basic concepts.New Era Philosophy,new and reconstructed Basic Philosophies,and Ideal Philosophical System explained generally.New perspective for the philosophy of justice is defined by considering the related new theories.Philosophy of defense,philosophy of equity,philosophy of equivalence,philosophy of judgment,philosophy of law,philosophy of protection,philosophy of punishment,and philosophy of rights are defined due to new perspective of philosophy.Also,philosophy of engineering law,philosophy of information technology law,philosophy of telecommunication law,and philosophy of security are defined by taking into account hybrid philosophies and general theories related to them.The interaction of engineering,law,justice,and basic philosophies has been generally expressed.展开更多
A shortage of courtrooms has long been a challenge in Malawi,especially since more judges were hired to help to streamline the country’s judicial process.Yet,while the current judiciary is headquartered in the countr...A shortage of courtrooms has long been a challenge in Malawi,especially since more judges were hired to help to streamline the country’s judicial process.Yet,while the current judiciary is headquartered in the country’s second-largest city of Blantyre,due to a lack of work space;some sections of the judiciary are located elsewhere,such as the juvenile,commercial and industrial courts.展开更多
Environmental rights are an important part of General Secretary Xi Jinping’s important discourses on respecting and protecting human rights.Soft law has played a significant role in the integrated development of the ...Environmental rights are an important part of General Secretary Xi Jinping’s important discourses on respecting and protecting human rights.Soft law has played a significant role in the integrated development of the theories of environmental rights and human rights.At the practical level,the soft law cooperation documents of the Belt and Road Initiative(BRI)have established general principles for the protection of environmental rights,policies for addressing climate change,standards for green investment and financing,and obligations for multinational corporations to protect the environment,making a contribution to the development and protection of environmental rights.In the future process of global environmental governance,it is necessary to start with the BRI’s soft law documents to further clarify the specific protection standards for environmental rights and promote the transformation of soft law into binding bilateral or multilateral agreements at the international level.In addition,it is essential to urge governments and enterprises to fulfill their due diligence obligations for environmental protection and strengthen information disclosure by emphasizing public interest responsibilities.Efforts should also be made to improve the environmental compliance systems of“going global”enterprises and enhance government supervision over corporate accountability for environmental rights.A corporate environmental protection accountability mechanism should be established,so as to actively promote global environmental governance in a more just and reasonable direction.展开更多
The Russia-Ukraine conflict remains unresolved,while the armed conflict between Israel and Palestine continues to escalate,causing significant civilian casualties.To better protect the victims of war in armed conflict...The Russia-Ukraine conflict remains unresolved,while the armed conflict between Israel and Palestine continues to escalate,causing significant civilian casualties.To better protect the victims of war in armed conflicts,clarifying the applicability of international human rights law(IHRL)and international humanitarian law(IHL)in such contexts has become an urgent issue.A comparative study on the application of IHRL and IHL needs to address three key questions step by step:First,whether IHRL is applicable during armed conflicts;second,if applicable,how IHRL complements and interacts with IHL;and third,what methods should be adopted to resolve conflicts when IHRL and IHL are applied concurrently.In this context,an analysis of the historical development of IHRL and IHL reveals that the two share a common philosophical foundation,and thus they can be applied concurrently during armed conflicts.From an empirical perspective,IHRL engages with IHL through two approaches:interpreting IHL provisions and directly applying IHRL to armed conflicts,thereby fostering interactive development between the two.In cases where normative conflicts arise between IHRL and IHL,such as in the rules on the use of force and internment procedures,the principles of systemic integration and lex specialis can reconcile these conflicts during the application process.展开更多
文摘THERE was a giant map unfurled beside him and as Lawrence Muiruri Ngugi spoke, he kept on gesturing at it for illumination. The CEO of the Nairobi Center for International Arbitration （NCIA） in Kenya traced the pathways of some of the biggest infrastructure projects in Nairobi： a mammoth oil pipeline, a highway and a standard-gauge railway （SGR）.
文摘As commercial drone delivery becomes increasingly popular,the extension of the vehicle routing problem with drones(VRPD)is emerging as an optimization problem of inter-ests.This paper studies a variant of VRPD in multi-trip and multi-drop(VRP-mmD).The problem aims at making schedules for the trucks and drones such that the total travel time is minimized.This paper formulate the problem with a mixed integer program-ming model and propose a two-phase algorithm,i.e.,a parallel route construction heuristic(PRCH)for the first phase and an adaptive neighbor searching heuristic(ANSH)for the second phase.The PRCH generates an initial solution by con-currently assigning as many nodes as possible to the truck–drone pair to progressively reduce the waiting time at the rendezvous node in the first phase.Then the ANSH improves the initial solution by adaptively exploring the neighborhoods in the second phase.Numerical tests on some benchmark data are conducted to verify the performance of the algorithm.The results show that the proposed algorithm can found better solu-tions than some state-of-the-art methods for all instances.More-over,an extensive analysis highlights the stability of the pro-posed algorithm.
基金Supported by the Original Exploration Project of National Natural Science Foundation of China(5215000105)Young Teachers Fund for Higher Education Institutions of Huo Yingdong Education Foundation(171043)。
文摘A simulated oil viscosity prediction model is established according to the relationship between simulated oil viscosity and geometric mean value of T2spectrum,and the time-varying law of simulated oil viscosity in porous media is quantitatively characterized by nuclear magnetic resonance(NMR)experiments of high multiple waterflooding.A new NMR wettability index formula is derived based on NMR relaxation theory to quantitatively characterize the time-varying law of rock wettability during waterflooding combined with high-multiple waterflooding experiment in sandstone cores.The remaining oil viscosity in the core is positively correlated with the displacing water multiple.The remaining oil viscosity increases rapidly when the displacing water multiple is low,and increases slowly when the displacing water multiple is high.The variation of remaining oil viscosity is related to the reservoir heterogeneity.The stronger the reservoir homogeneity,the higher the content of heavy components in the remaining oil and the higher the viscosity.The reservoir wettability changes after water injection:the oil-wet reservoir changes into water-wet reservoir,while the water-wet reservoir becomes more hydrophilic;the degree of change enhances with the increase of displacing water multiple.There is a high correlation between the time-varying oil viscosity and the time-varying wettability,and the change of oil viscosity cannot be ignored.The NMR wettability index calculated by considering the change of oil viscosity is more consistent with the tested Amott(spontaneous imbibition)wettability index,which agrees more with the time-varying law of reservoir wettability.
基金supported by Academia Sinica (Taipei) and Science Council (Grant NSC96-2116-M-001-012-MY3).
文摘The two one-state-variable, rate- and state-dependent friction laws, i.e., the slip and slowness laws, are com- pared on the basis of dynamical behavior of a one-degree-of-freedom spring-slider model through numerical simulations. Results show that two （normalized） model parameters, i.e., A （the normalized characteristic slip distance） and β-α （the difference in two normalized parameters of friction laws）, control the solutions. From given values of △, β, and α, for the slowness laws, the solution exists and the unique non-zero fixed point is stable when △〉（β-α）, yet not when △ 〈（β-α）. For the slip law, the solution exists for large ranges of model parameters and the number and stability of the non-zero fixed points change from one case to another. Results suggest that the slip law is more appropriate for controlling earthquake dynamics than the slowness law.
基金Project supported by the National Natural Science Foundation of China (Grant No. 12075197)the Fundamental Research Fund for the Central Universities of China (Grant No. 20720210020)。
文摘It is found from textbooks and literature that there are three different statements for the third law of thermodynamics,i.e., the Nernst theorem, the unattainability statement of absolute zero temperature, and the heat capacity statement. It is pointed out that such three statements correspond to three thermodynamic parameters, which are, respectively, the entropy,temperature, and heat capacity, and can be obtained by extrapolating the experimental results of different parameters at ultralow temperatures to absolute zero. It is expounded that because there is no need for additional assumptions in the derivation of the Nernst equation, the Nernst theorem should be renamed as the Nernst statement. Moreover, it is proved that both the Nernst statement and the heat capacity statement are mutually deducible and equivalent, while the unattainability of absolute zero temperature is only a corollary of the Nernst statement or the heat capacity statement so that it is unsuitably referred to as one statement of the third law of thermodynamics. The conclusion is that the Nernst statement and the heat capacity statement are two equivalent statements of the third law of thermodynamics.
基金Natural Science Foundation of Shandong Province,China(Grant No.ZR202111230202).
文摘Hyperspectral image classification stands as a pivotal task within the field of remote sensing,yet achieving highprecision classification remains a significant challenge.In response to this challenge,a Spectral Convolutional Neural Network model based on Adaptive Fick’s Law Algorithm(AFLA-SCNN)is proposed.The Adaptive Fick’s Law Algorithm(AFLA)constitutes a novel metaheuristic algorithm introduced herein,encompassing three new strategies:Adaptive weight factor,Gaussian mutation,and probability update policy.With adaptive weight factor,the algorithmcan adjust theweights according to the change in the number of iterations to improve the performance of the algorithm.Gaussianmutation helps the algorithm avoid falling into local optimal solutions and improves the searchability of the algorithm.The probability update strategy helps to improve the exploitability and adaptability of the algorithm.Within the AFLA-SCNN model,AFLA is employed to optimize two hyperparameters in the SCNN model,namely,“numEpochs”and“miniBatchSize”,to attain their optimal values.AFLA’s performance is initially validated across 28 functions in 10D,30D,and 50D for CEC2013 and 29 functions in 10D,30D,and 50D for CEC2017.Experimental results indicate AFLA’s marked performance superiority over nine other prominent optimization algorithms.Subsequently,the AFLA-SCNN model was compared with the Spectral Convolutional Neural Network model based on Fick’s Law Algorithm(FLA-SCNN),Spectral Convolutional Neural Network model based on Harris Hawks Optimization(HHO-SCNN),Spectral Convolutional Neural Network model based onDifferential Evolution(DE-SCNN),SpectralConvolutionalNeuralNetwork(SCNN)model,and SupportVector Machines(SVM)model using the Indian Pines dataset and PaviaUniversity dataset.The experimental results show that the AFLA-SCNN model outperforms other models in terms of Accuracy,Precision,Recall,and F1-score on Indian Pines and Pavia University.Among them,the Accuracy of the AFLA-SCNN model on Indian Pines reached 99.875%,and the Accuracy on PaviaUniversity reached 98.022%.In conclusion,our proposed AFLA-SCNN model is deemed to significantly enhance the precision of hyperspectral image classification.
文摘The Riemann problem for a two-dimensional 2 x 2 nonstrictly hyperbolic system of nonlinear conservation laws has been considered for constant initial data having discontinuities on three rays with vertex at the origin. The solutions are constructed for some one-J and non-R initial data. One kind of new discontinuity, which is labelled as the delta-shock wave, appears in some solutions. The delta-shock wave is a discontinuity plane that is the suport of a generalized function.
基金supported by the National Natural Science Foundation of China(Grant No.42077244).
文摘To examine the effect of bedding angle upon burst proneness in terms of energy,phyllites with seven various bedding angles are selected for conventional uniaxial compression and single-cyclic loading eunloading uniaxial compression tests.The ejection and failure during compression process of phyllites are monitored in real-time by high-speed camera system.The results demonstrate that the phyllites with different bedding angles all consistently follow the linear energy storage and dissipation(LESD)law during compression.The ultimate energy storage of phyllites with varying bedding angles can be calculated precisely via using the LESD law.Based on this,four kinds of energy-based rockburst indices are applied to quantitatively assess the burst proneness for phyllites.Combined with the recorded images of high-speed camera system,ejection distance,and mass of rock fragments and powder,the burst proneness for phyllites with various bedding angles is qualitatively evaluated adopting the far-field ejection mass ratio.Next,burst proneness of anisotropic phyllites is assessed quantitatively and qualitatively.It is found that phyllites with bedding angles of 0°,15°,and 90°have a high burst proneness,and that with bedding angle of 30°has a medium burst proneness,whereas the ones with bedding angles of 45°,60°,and 75°have a low burst proneness.Finally,the published experimental data of shale and sandstone specimens with different bedding angles are extracted,and it is preliminarily verified that the bedding angle does not change the LESD law of rocks.
文摘BACKGROUND Hepatocellular carcinoma(HCC)is the most common form of liver cancer that has limited treatment options and a poor prognosis.Transarterial chemoembolization(TACE)is the first-line treatment for intermediate-stage HCC but can induce tumour hypoxia,thereby promoting angiogenesis.Recent studies suggested that combining TACE with anti-angiogenic therapies and immunotherapy might im-prove efficacy.Lenvatinib,a tyrosine kinase inhibitor,has demonstrated superior outcomes compared to sorafenib,while immune checkpoint inhibitors such as sintilimab show potential when combined with TACE.However,the efficacy and safety of TACE combined with lenvatinib and sintilimab(TACE+SL)compared to TACE with lenvatinib alone(TACE+L)in patients with intermediate-ad-vanced HCC has not yet been investigated.AIM To evaluate the efficacy and safety of TACE+SL therapy in comparison to TACE+L therapy in patients with intermediate-advanced HCC.METHODS A retrospective analysis was performed on patients with intermediate-advanced HCC who received TACE plus lenvatinib with or without sintilimab between September 2019 and September 2022.Baseline characteristics were compared,and propensity score matching was applied.Overall survival(OS),progression-free survival(PFS),and objective response rate(ORR)were evaluated between the two groups,and adverse events were analyzed.RESULTS The study included 57 patients,with 30 in the TACE+SL group and 27 in the TACE+L group.The TACE+SL group demonstrated significantly improved median PFS and OS compared to the TACE+L group(PFS:14.1 months vs 9.6 months,P=0.016;OS:22.4 months vs 14.1 months,P=0.039),along with a higher ORR(70.0%vs 55.6%).After propensity score matching,30 patients were included,with the TACE+SL group again showing longer median PFS and a trend toward improved OS(PFS:14.6 months vs 9.2 months,P=0.012;OS:23.9 months vs 16.3 months,P=0.063),and a higher ORR(73.3%vs 53.3%).No severe adverse events were reported.CONCLUSION TACE+SL demonstrated superior outcomes in terms of OS and PFS,compared to TACE+L.These findings suggest that the addition of sintilimab might enhance the therapeutic response in patients with intermediate-advanced HCC.
文摘In electromagnetics, Coulomb’s law is a very classic formula. Almost all textbooks give this formula, but none of them give a detailed corresponding theoretical derivation. In order for beginners of physics to better understand the physical meaning of this formula, we explored the source, the physical model and mechanism of this formula. Based on the principle that the interaction between two different fields can generate energy density, which is equal to the pressure, we analyzed the distribution of the electric field energy density as well as the corresponding pressure on the charged surface. Through the rigorous mathematical derivation, we give the theoretical derivation of this formula.
基金Funding Open Access funding enabled and organized by Projekt DEAL.When preparing this manuscript,the authors have kept the COPE guidelines on how to deal with potential acts of misconduct.The research leading to these results received funding from Deutsche Forschungsgemeinschaft(DFG,German Research Foundation)through the project SFB-TRR 75 with the project number 84292822the DFG under Germanys Excellence Strategy-EXC2075with the project number390740016.
文摘Understanding the dynamics of phase boundaries in fluids requires quantitative knowledge about the microscale processes at the interface.We consider the sharp-interface motion of the compressible two-component flow and propose a heterogeneous multiscale method(HMM)to describe the flow fields accurately.The multiscale approach combines a hyperbolic system of balance laws on the continuum scale with molecular-dynamics(MD)simulations on the microscale level.Notably,the multiscale approach is necessary to compute the interface dynamics because there is—at present—no closed continuum-scale model.The basic HMM relies on a moving-mesh finite-volume method and has been introduced recently for the compressible one-component flow with phase transitions by Magiera and Rohde in(J Comput Phys 469:111551,2022).To overcome the numerical complexity of the MD microscale model,a deep neural network is employed as an efficient surrogate model.The entire approach is finally applied to simulate droplet dynamics for argon-methane mixtures in several space dimensions.To our knowledge,such compressible two-phase dynamics accounting for microscale phase-change transfer rates have not yet been computed.
文摘This work focuses on a Keller-Segel chemotaxis model, with an emphasis on its conservation laws. Through a new approach combined with the multiplier method, called the mixed method, we obtain conservation vectors that are related and unrelated to symmetric information. In addition, some exact solutions with particular forms are obtained according to the method of conservation laws. These particular solutions are different from the group-invariant solutions.
文摘There is a wide recognition that encompassing an obligation of good faith in every commercial contract is one of the most important advances in contract law in the twentieth century^([1]).Despite the fact that this concept has been incorporated in the vast majority of national legal systems,its precise scope and application may vary from one to another,depending on the commercial traditions and customs of each legal system^([2]).The fact that good faith has been treated differently in different national legal systems has also been reflected on the international level through its inclusion in international legal instruments,one of which is the United Nations Convention on Contracts for the International Sale of Goods(hereafter CISG).In this article,the legislative history of the CISG will be closely examined with the purpose of finding out how a compromise was reached between the common law countries,which expressly objected to the imposition of a duty of good faith,and the civil law countries,which explicitly endorse its incorporation.A logical result flowing from this historical examination,as will be submitted,is that the conceptual ambiguity of good faith is the underlying reasoning behind their fundamentally different attitudes towards the incorporation of this notion in the international commercial context.
文摘Protecting unregistered trademarks is not only necessary but feasible.Although Articles 2 and 6 of the Anti-Unfair Competition Law of the People's Republic of China currently fail to provide effective protection for unregistered trademarks due to systemic deficiencies,its legal subsumption can be enhanced by reforming the application principles of general provisions,scientifically reconstructing the notion of"unfair competition,"and adopting an open legislative approach featuring"defining unfair competition+key illustrative examples."Meanwhile,by proactively incorporating the concept that unregistered trademarks constitute the property rights of their owners into the trademark law and strengthening regulations against trademark squatting,the application of the antiunfair competition law can be enhanced to provide more effective damage remedies for unregistered trademark holders.This approach would increase the legal costs of squatting,thereby achieving a dual governance effect of both cracking down on and preventing such practice.By rationally delineating the logical boundaries of anti-unfair competition protection in conjunction with the registration-based acquisition system under the trademark law,this approach scientifically resolves conflicts between the protection of unregistered trademarks and registration validity rules while providing proportionate remedies and respect for the former.Consequently,it achieves an organic unity of necessity and rationality,comprehensiveness and restraint,as well as foresight and pertinence in the protection of unregistered trademarks.
文摘It is shown that time asymmetry is essential for deriving thermodynamic law and arises from the turnover of energy while reducing its information content and driving entropy increase. A dynamically interpreted principle of least action enables time asymmetry and time flow as a generation of action and redefines useful energy as an information system which implements a form of acting information. This is demonstrated using a basic formula, originally applied for time symmetry/energy conservation considerations, relating time asymmetry (which is conventionally denied but here expressly allowed), to energy behaviour. The results derived then explained that a dynamic energy is driving time asymmetry. It is doing it by decreasing the information content of useful energy, thus generating action and entropy increase, explaining action-time as an information phenomenon. Thermodynamic laws follow directly. The formalism derived readily explains what energy is, why it is conserved (1st law of thermodynamics), why entropy increases (2nd law) and that maximum entropy production within the restraints of the system controls self-organized processes of non-linear irreversible thermodynamics. The general significance of the principle of least action arises from its role of controlling the action generating oriented time of nature. These results contrast with present understanding of time neutrality and clock-time, which are here considered a source of paradoxes, intellectual contradictions and dead-end roads in models explaining nature and the universe.
文摘In this work,firstly the general definition of law and types of law are presented.Then general definition of justice and types of justice are explained.Constructional and/or complementary theories are defined as general/specific,and interaction theories,relationship theories,and hybrid theories are specifically mentioned.Accordingly,the interactions between the disciplines of law and justice are explained in more detail.Then,the general definition of engineering and philosophy of engineering are explained.The interactions between engineering and law are specifically evaluated,and interactions between engineering and 52 types of law are defined and case studies found in the literature are indicated for each.Then interactions between engineering and justice briefly mentioned.Relationships/interactions between engineering and 25 different types of justice discussed and evaluated with specific examples.Emphasis was placed on the historical development of the subject of philosophy in general,and philosophy of law was defined more specifically.Some of the philosophers of law and their areas of interest are presented in a table format and compared.The new perspective of philosophy was defined and the disciplines of R-Philosophy,R-Science,R-Justice,R-Law,R-Engineering,and R-Religion were expressed with the relevant basic concepts.New Era Philosophy,new and reconstructed Basic Philosophies,and Ideal Philosophical System explained generally.New perspective for the philosophy of justice is defined by considering the related new theories.Philosophy of defense,philosophy of equity,philosophy of equivalence,philosophy of judgment,philosophy of law,philosophy of protection,philosophy of punishment,and philosophy of rights are defined due to new perspective of philosophy.Also,philosophy of engineering law,philosophy of information technology law,philosophy of telecommunication law,and philosophy of security are defined by taking into account hybrid philosophies and general theories related to them.The interaction of engineering,law,justice,and basic philosophies has been generally expressed.
文摘A shortage of courtrooms has long been a challenge in Malawi,especially since more judges were hired to help to streamline the country’s judicial process.Yet,while the current judiciary is headquartered in the country’s second-largest city of Blantyre,due to a lack of work space;some sections of the judiciary are located elsewhere,such as the juvenile,commercial and industrial courts.
文摘Environmental rights are an important part of General Secretary Xi Jinping’s important discourses on respecting and protecting human rights.Soft law has played a significant role in the integrated development of the theories of environmental rights and human rights.At the practical level,the soft law cooperation documents of the Belt and Road Initiative(BRI)have established general principles for the protection of environmental rights,policies for addressing climate change,standards for green investment and financing,and obligations for multinational corporations to protect the environment,making a contribution to the development and protection of environmental rights.In the future process of global environmental governance,it is necessary to start with the BRI’s soft law documents to further clarify the specific protection standards for environmental rights and promote the transformation of soft law into binding bilateral or multilateral agreements at the international level.In addition,it is essential to urge governments and enterprises to fulfill their due diligence obligations for environmental protection and strengthen information disclosure by emphasizing public interest responsibilities.Efforts should also be made to improve the environmental compliance systems of“going global”enterprises and enhance government supervision over corporate accountability for environmental rights.A corporate environmental protection accountability mechanism should be established,so as to actively promote global environmental governance in a more just and reasonable direction.
文摘The Russia-Ukraine conflict remains unresolved,while the armed conflict between Israel and Palestine continues to escalate,causing significant civilian casualties.To better protect the victims of war in armed conflicts,clarifying the applicability of international human rights law(IHRL)and international humanitarian law(IHL)in such contexts has become an urgent issue.A comparative study on the application of IHRL and IHL needs to address three key questions step by step:First,whether IHRL is applicable during armed conflicts;second,if applicable,how IHRL complements and interacts with IHL;and third,what methods should be adopted to resolve conflicts when IHRL and IHL are applied concurrently.In this context,an analysis of the historical development of IHRL and IHL reveals that the two share a common philosophical foundation,and thus they can be applied concurrently during armed conflicts.From an empirical perspective,IHRL engages with IHL through two approaches:interpreting IHL provisions and directly applying IHRL to armed conflicts,thereby fostering interactive development between the two.In cases where normative conflicts arise between IHRL and IHL,such as in the rules on the use of force and internment procedures,the principles of systemic integration and lex specialis can reconcile these conflicts during the application process.
