Shaping the Wavefront of Incident Light with a Strong Robustness Particle Swarm Optimization Algorithm

We demonstrate a modified particle swarm optimization(PSO) algorithm to effectively shape the incident light with strong robustness and short optimization time. The performance of the modified PSO algorithm and genetic algorithm(GA) is numerically simulated. Then, using a high speed digital micromirror device, we carry out light focusing experiments with the modified PSO algorithm and GA. The experimental results show that the modified PSO algorithm has greater robustness and faster convergence speed than GA. This modified PSO algorithm has great application prospects in optical focusing and imaging inside in vivo biological tissue, which possesses a complicated background.

Chargino Production via Z^0-Boson Decay in a Strong Electromagnetic Field

In the framework of MSSM the probability of Z0-boson decay to chaxginos in a strong electromagnetic field, Z X＋X-, is analyzed. The method of calculations employs exact solutions of relativistic wave equations for charginos in a crossed electromagnetic field. Analytic expression for the decay width is obtained at an arbitrary value of the parameter which characterizes the external-field strength Fμv and Z%boson momentum qv. The process Z0→ X＋X- is forbidden in a vacuum for the case of relatively heavy charginos： Mx±mz/2. However, in an intense electromagnetic background this reaction could take place in the region of superstrong fields （x〉1）.

Electron-Cyclotron Laser Using Free-Electron Two-Quantum Stark Radiation in a Strong Uniform Axial Magnetic Field and an Alternating Axial Electric Field in a Voltage-Supplied Pill-Box Cavity

We consider the radiation from the beam electrons traveling in a strong uniform axial magnetic field and an axial alternating electric field of wavelength Aw generated by a voltage-supplied pill-box cavity. The beam electrons emit genuine laser radiation that propagates only in the axial direction through free-electron two- quantum Stark radiation. We find that laser radiation takes place only at the expense of the axial kinetic energy when Aw 〈〈 c/（ωc/γ）, where ωc/γ is the relativistic electron--cyclotron frequency. We formulate the laser power based on quantum-wiggler electrodynamics, and envision a laser of length lore with estimated power 0.1 GW/（kA） in the 10-4 cm wavelength range.

SYNTHESIS OF DIARYL ETHERS THROUGH PHASE TRANSFER CATALYSIS WITH POTASSIUN FLUORIDE COATED ALUMINA AS A STRONG BASE

Seven diaryl ethers were synthesized with potassium fluoride coated alumina as a strong base and the addition of catalytic amount of PTC. The yield of diaryl ethers with addition of PTC was much higher than that without PTC.A discussion of the catalysis mechanism was given in this paper.

The Stimulated Brillouin Scattering of a Strong Laser in Partially Stripped Plasmas

The effects of the nonlinear polarization in a partially stripped plasma on stimulated Brillouin scattering (SBS) process of a strong laser are discussed. A set of nonlineax mode coupling equations and the linear growth rate of SBS instability is derived, respectively. When the intensity of an incident laser Io > 10^(17) W/cm^2, the third order susceptibility X(3) will reduce the above mentioned linear growth rate enormously. If taking the maximum value of the second order susceptibility X(2), the growth rate may be decreased observably when Io > 10_^(14)W/cm2. Furthermore, the nonlinear susceptibility can affect the nonlinear evolution of SBS much extensively.

A NOTE ON A STRONG UNIQUENESS THEOREM OF STRAUSS

In this paper we present a correction of the proofofa strong uniqueness theorem given by H.Strauss in 1992 on approximation by reciprocals of functions of an n-dimensional space span (u_1,…,u_n) satisfying coefficient constraints.

A NOTE ON A STRONG UNIQUENESS THEOREM OF SITRAUSS

In this paper we present a correction of the proof of u strong uniqueness theorem given by H. Struuss [1] in 1992 on approximation by reciprocals of functions uf an n-dimensional space (u,…un) satisfying coefficient constraints.

Calculation of the Duration of the Atomic Tunneling Ionization in a Strong Electrostatic Field by Using Bohmian Trajectories Approach

The duration of a bound electron tunneling through the barrier formed by atomic potential and electrostatic field is calculated by the Bohmian trajectories scheme. The time of the tunneling ionization decreases with the increase of the amplitude of the electrostatic field. By using the information about the position, velocity and force of the Bohmian trajectories, the dynamical process of tunneling through the barrier is investigated.

MILANO UNICA presented the S/S 2019 TRENDS and sent a strong message: Save the planet

WE ALL HAVE A BIG RESPONSIBILITY: TO DESIGN EXCELLENT FASHION AND CONTRIBUTE TO SAVING OUR EARTH. THE DIALOGUE THAT SPRINGS FROM EVENTS LIKE THE PRESENTATION OF THE TRENDS IS AN IMPORTANT TOOL FOR THE ENTIRE FASHION INDUSTRY On October 25,2017,the route to the 26th edition of Milano

A Strong Smell of Fish

Once an old couple stayed over night at a small hotel in the countryside. Their room wasvery hot in the night, so the husband got up in the dark to open the door. When he got back, hiswife asked him what kind of night it was. "I don t think it s raining," he replied. "But it s pitch-dark(漆黑的), and there is a

Four Pillars Underpinning a Strong Sense of Community for the Chinese Nation

Throughout history,there have been close political,economic,and cultural connections between the border areas and the interior of China.To strengthen the unity of the Chinese nation and forge a strong sense of national identity,it is important to draw inspiration from our history.Politically,we must reinforce the memory of national unity and promote the belief that the Chinese nation is a big family and China's territory is indivisible.Economically,it is crucial to continue the historical economic ties between the border areas and the interior,and to deepen economic interdependence in the present era.This will strengthen economic connections between different regions and groups within China and promote unity.Socially,it is essential to facilitate the population flow between dfferent regions,particularly between the border areas and the interior,to promote ethnic communication and integration.Encouraging ethnic groups to live among each other and supporting two-way population flow can further enhance social cohesion.Culturally,we must maintain our tradition of cultural sharing and spread traditional Chinese culture and modern socialist values among all ethnic groups.This will strengthen the bond of the Chinese nation as one community.These four pillars-political,economic,social,and cultural-form the foundation of a strong sense of community for the Chinese nation.

On Forging a Strong Sense of Community for the Chinese Nation and the Continuous Development of the Cohesion of the Chinese Nation

Chinese national cohesion,through hard forging in the long course of history,has strong historical inertia.The theory of"Great Unification"a multi-ethnic state structure under this ideology,the"multi-colorfully integrated"Chinese culture,a constantly evolving and subliming sense of"Huaxia identity"and other historical genes make a far-reaching significance to producing and developing the cohesion of the Chinese nation.The Communist Party of China(CPC)fully appreciates the laws and prevailing trends of history,seizes the historical initiative,and combines them with new historical context,so unremittingly promotes the continuous development of the cohesion of the Chinese nation.On the new journey into the new era,General Secretary Xi Jinping,centering on the epochal theme of"the great rejuvenation of the Chinese nation",put forward the original assertion of"forging a strong sense of community for the Chinese nation",pointing out that"forging a strong sense of community for the Chinese nation"as the main theme to continuously promote the construction of the Chinese national community,which has had a tremendous and far-reaching impact on the continued development of the cohesion of the Chinese nation.Forging a strong sense of community for the Chinese nation and continuously developing the cohesion of the Chinese nation reflect the historical consciousness and the spirit of the historical initiative of the CPC in the new era to unite and lead the people of all ethnic groups in the country,to unite the majestic power of the great rejuvenation of the Chinese nation,and to promote the great rejuvenation of the Chinese nation comprehensively.

Fostering a Strong Sense of Community for the Chinese Nation and the Chinafication of Tibetan Buddhism

The objective of fostering a strong sense of community for the Chinese nation is to establish the Chinese national identity,which is the symbol of a modern nation-state,for all Minzu in China;and the precondition of it is to define"China"and"Chinese people"with preciseness.For that sake,we must abolish both Han chauvinism and narrow-minded local ethnic chauvinism,and reaffirm the staunch belief that all 56 Minzu are inseparable parts of the Chinese nation and that all people of these 56 Minzu are Chinese people.To adapt Tibetan Buddhism to the Chinese context is not to sinicize Tibetan Buddhism,but to adapt it to the requirement for the development and progress of the Chinese nation in a new era,as well as to make it a fantastic catalyst for the great rejuvenation of the Chinese nation.For the sake of it,we will not only make Tibetan Buddhism a crucial part of Chinese Buddhism,but also include Han and Tibetan Buddhism as the most important identity of Chinese Buddhism,so as to integrate Tibetan Buddhism,Han Buddhism,and Theravada Buddhism inside China and strengthen a sense of community for Chinese nation in China's Buddhist community,which will serve as an important part of forging a strong sense of community for the Chinese nation.

Tourism will be a Key Factor in the Global Drive out of Recession and a Strong Contributor to a Long Term Green Economic New Deal

Tourism is facing increasingly difficult conditions as the global economy deteriorates and Asia and the Pacific, one of fastest growing tourism regions in the world,is also strongly feeling the impact of the global slowdown.But,as concluded by the over 100 experts from 25 countries gathered in Guilin for the 2nd UNWTO Conference on

A strong green-emitting phosphor:K_3Gd(PO_4)_2:Tb^(3+) for UV-excited white light-emitting-diodes

KaGd（PO4）2：Tb3＋ phosphors are synthesized by the solid reaction method, and the phases and lu- minescence properties of the obtained phosphors are well characterized. The emission spectra of KaGd（PO4）2：Tb3＋ exhibit the typical emissions of Tb3＋. Concentration quenching of Tb3＋ is not observed in KaGd（PO4）2：Tb3＋, likely because the shortest average distance of Tb3＋-Tb3＋ in KaGd（POn）2：Tb3＋ is adequately long such that energy transfer between Tb3＋-Tb3＋ ions cannot take place effectively. This re- sult indicates that KaTb（P04）2 phosphors have potential application in near ultraviolet （n-UV）-convertible phosphors for white light-emitting diodes.

Behavior of the relativistic angular and energy distributions of atoms exposed to a strong and low-frequency circularly polarized laser field

In this Letter, we focus on the theoretical analysis of the relativistic energy and angular distributions of the ejected photoelectrons during the relativistic tunnel ionization of atoms by intense, circularly polarized light. We make a small modification of the general analytical expressions for these distributions. The role of the initial momentum, the ponderomotive potential, and the Stark shift are considered. We also present the maximal angle of electron emission.

A STRONG LINK

China and the United States have a complicated relationship, one that can be called a competitive partnership. The U.S. trade deficit with China, its third largest trading partner, hit a staggering $201.6 billion last year, an imbalance that is a major bone of contention. Yet, while frictions over trade, intellectual property rights and other issues grab the headlines, there is strong-and growing-financial and economic cooperation between the two nations. Although substantial differences exist, in the econo...

A Strong Field

The performances by young Chinese Athletes in Berlin boosted confidence ahead of the London Olympics chinese athletes secured their ’country’s third best-ever track